PulPac AB

Sweden

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Date
2026 June 4
2026 (YTD) 4
2025 17
2024 17
2023 8
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IPC Class
B27N 5/02 - Hollow articles 34
B27N 5/00 - Manufacture of non-flat articles 30
B31B 50/59 - Shaping sheet material under pressure 30
B27N 3/20 - Moulding or pressing characterised by using platen-presses 29
B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off 28
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Found results for  patents

1.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number EP2025086857
Publication Number 2026/131524
Status In Force
Filing Date 2025-12-12
Publication Date 2026-06-25
Owner PULPAC AB (Sweden)
Inventor
  • Högblom, Olle
  • Larsson, Ove

Abstract

A High Density Dry Moulded Fibre (HD-DMF) cup-shaped cellulose product (1) and a method for producing such a cup-shaped cellulose product (1) from a cellulose material (2), where the forming mould (3) comprises a first mould part (4) having a cavity (8), a second mould part (5) having a shaft (9), and a third mould part (6) having a tube-shaped pressing member (10), wherein the method comprises the steps of; arranging the shaft (9) in the cavity (8), thereby creating a cup-shaped forming space (11); arranging the cellulose material (2) in the cup-shaped forming space (11); and forming the cup-shaped cellulose product (1) by pressing the cellulose material (2) with the tube-shaped pressing member (10) with a forming pressure to obtain the tube-shaped cellulose product (1).

IPC Classes  ?

  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 3/22 - Charging or discharging
  • B27N 5/02 - Hollow articles
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off

2.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number EP2025086856
Publication Number 2026/131523
Status In Force
Filing Date 2025-12-12
Publication Date 2026-06-25
Owner PULPAC AB (Sweden)
Inventor
  • Högblom, Olle
  • Larsson, Ove

Abstract

A High Density Dry Moulded Fibre (HD-DMF) tube-shaped cellulose product (1) and a method for producing such a tube-shaped cellulose product (1) from a cellulose material (2), where the forming mould (3) comprises a first mould part (4) having a cavity (8), a second mould part (5) having a shaft (9), and a third mould part (6) having a tube-shaped pressing member (10), wherein the method comprises the steps of; arranging the shaft (9) in the cavity (8), thereby creating a tube-shaped forming space (11); arranging the cellulose material (2) in the tube-shaped forming space (11); and forming the tube-shaped cellulose product (1) by pressing the cellulose material (2) with the tube-shaped pressing member (10) with a forming pressure to obtain the tube-shaped cellulose product (1).

IPC Classes  ?

  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 3/22 - Charging or discharging
  • B27N 5/02 - Hollow articles
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off

3.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number EP2025086858
Publication Number 2026/131525
Status In Force
Filing Date 2025-12-12
Publication Date 2026-06-25
Owner PULPAC AB (Sweden)
Inventor
  • Högblom, Olle
  • Larsson, Ove

Abstract

A High Density Dry Moulded Fibre (HD-DMF) tube-shaped cellulose product (1) comprising a flange (27) and a method for producing such a cellulose product (1) comprising a flange (27) from a cellulose material (2), where the forming mould (3) comprises a first mould part (4) having a through-channel (8), a second mould part (5) having a shaft (9), and a third mould part (6) having a tube-shaped pressing member (10), wherein the method comprises the steps of; creating a tube-shaped forming space (11) between a through-channel side wall (13) of the first mould part (4) and a shaft outer surface (16) of the second mould part (5); creating a flange cavity (15) between a flange recess (12) of the first mould part (4) and the lower bearing surface (20) of the second mould part (5); arranging the cellulose material (2) in the tube-shaped forming space (11); and forming the tube-shaped cellulose product (1) comprising a flange (27) by pressing the cellulose material (2) with the tube-shaped pressing member (10) with a forming pressure to obtain the tube-shaped cellulose product (1) comprising a flange (27).

IPC Classes  ?

  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 3/22 - Charging or discharging
  • B27N 5/02 - Hollow articles
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off

4.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number EP2025086859
Publication Number 2026/131526
Status In Force
Filing Date 2025-12-12
Publication Date 2026-06-25
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Högblom, Olle
  • Hagberg, Yngve

Abstract

A High Density Dry Moulded Fibre (HD-DMF) cellulose product (1) comprising a tube-shaped member (8) and a method and system for producing such a cellulose product (1) from a cellulose paper material (2), where the forming mould (3) comprises a first mould part (4) having an inner surface (13), a second mould part (5) having a rotatable shaft (9) having an outer surface (16), and a third mould part (6) having a tube-shaped pressing member (10), wherein the method comprises the steps of; arranging the cellulose paper material (2) on the rotatable shaft (9) by rotating the rotatable shaft (9), thereby winding a predefined number of layers of cellulose paper material (2) onto the rotatable shaft (9); arranging the rotatable shaft (9) with the cellulose paper material (2) in the first mould part (4), thereby creating a tube shaped forming space (11) between the inner side wall (13) of the first mould part (4) and the outer surface (16) of the rotatable shaft (9); and forming the cellulose product (1) by pressing the cellulose paper material (2) with the tube-shaped pressing member (10) with a forming pressure to obtain the cellulose product (1).

IPC Classes  ?

  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 3/22 - Charging or discharging
  • B27N 5/02 - Hollow articles
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/16 - Transporting the material from mat moulding stations to pressesApparatus specially adapted for transporting the material or component parts therefor, e.g. cauls

5.

METHOD FOR DRY-FORMING CELLULOSE PRODUCTS FROM CELLULOSE FIBRES IN A PRODUCT FORMING UNIT AND A PRODUCT FORMING UNIT

      
Application Number EP2025063394
Publication Number 2025/242534
Status In Force
Filing Date 2025-05-15
Publication Date 2025-11-27
Owner PULPAC AB (Sweden)
Inventor
  • Mordue, Adrian
  • Litten, Neil Anthony
  • Larsson, Ove
  • Högblom, Olle
  • Dunlop, Stuart
  • Fawcus, Philip
  • Hartley, Matthew
  • Welsh, Craig
  • West, Grant
  • Pattrick, Mark

Abstract

A method for dry-forming a cellulose product from cellulose fibres in a product forming unit and product forming unit, where the product forming unit comprises at least one shaping element and a forming mould. Loose and separated cellulose fibres are provided and the loose and separated cellulose fibres are fed into a flow of air for transporting the cellulose fibres to the at least one shaping element by means of the flow of air as carrying medium for the cellulose fibres; arranging the loose and separated cellulose fibres onto a three-dimensional surface of the at least one shaping element by means of the flow of air for air-forming at least one three-dimensional body of cellulose fibres; dry-forming the cellulose product into a three-dimensional compressed fibre structure by pressing and heating at least one three-dimensional body of cellulose fibres in a forming mould with a forming pressure in the range of 1-600 MPa and with a forming temperature in the range of 60-300 °C.

IPC Classes  ?

  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/02 - Hollow articles
  • B29C 49/02 - Combined blow-moulding and manufacture of the preform or the parison
  • B29C 49/00 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor
  • B65D 13/00 - Containers having bodies formed by interconnecting two or more rigid, or substantially rigid, components made wholly or mainly of the same material, other than metal, plastics, wood or substitutes therefor
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/12 - Moulding of mats from fibres
  • B27N 3/16 - Transporting the material from mat moulding stations to pressesApparatus specially adapted for transporting the material or component parts therefor, e.g. cauls
  • B27N 5/00 - Manufacture of non-flat articles
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/52 - Heating or cooling
  • B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • B29K 105/12 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
  • B65D 6/00 - Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal, plastics, wood or substitutes therefor

6.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number EP2025060583
Publication Number 2025/219490
Status In Force
Filing Date 2025-04-16
Publication Date 2025-10-23
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Högblom, Olle
  • Ahlbom, Anders
  • Hagberg, Yngve
  • Fawcus, Philip
  • Farrell, Mark
  • Gilford, Edward

Abstract

A cellulose three-dimensional cellulose High Density Moulded Fibre (HDMF) product (5) and a method for producing a three-dimensional cellulose High Density Moulded Fibre (HDMF) product (5) from a cellulose material (4), wherein the method comprises the steps of; heating a forming mould (3) to a forming temperature in the range of 100°C to 300°C; conditioning the cellulose material (4) to a water content in the range of 5% to 20%; arranging the cellulose material (4) in the forming mould (3); and forming the cellulose HDMF product (5) from the cellulose material (4) in the heated forming mould (3), by pressing the cellulose material (4) with a forming pressure, thereby exposing the cellulose material (4) to a compression force in a first direction, and simultaneously expose the cellulose material (4) to at least a shear force in a second direction to obtain densification and in-mould defibrillation of the cellulose material (4) for the cellulose product (5).

IPC Classes  ?

  • B27N 1/00 - Pretreatment of moulding material
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/02 - Hollow articles
  • B31B 50/59 - Shaping sheet material under pressure
  • B31D 5/00 - Multiple-step processes for making three-dimensional articles
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/08 - Moulding or pressing
  • B27N 5/00 - Manufacture of non-flat articles
  • B65D 6/00 - Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal, plastics, wood or substitutes therefor
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/32 - Component parts, details or accessoriesAuxiliary operations
  • B29C 43/34 - Feeding the material to the mould or the compression means

7.

FORMING MOULD SYSTEM FOR DRY-FORMING CELLULOSE PRODUCTS AND METHOD FOR DRY-FORMING CELLULOSE PRODUCTS

      
Application Number EP2025056608
Publication Number 2025/190935
Status In Force
Filing Date 2025-03-11
Publication Date 2025-09-18
Owner PULPAC AB (Sweden)
Inventor Ljungberg, Martin

Abstract

A forming mould system configured for dry-forming cellulose products from cellulose fibres, comprising a first mould part and a second mould part configured for cooperating with each other in a pressing direction during a dry-forming operation. The first mould part comprises a forming element extending in the pressing direction and one or more pressing elements extending in the pressing direction. The second mould part comprises a deformation element at least partly enclosed by a casing structure. The deformation element comprises a forming cavity. The deformation element is upon deformation configured for pushing cellulose fibres arranged between the forming element and the forming cavity towards the forming element during the dry-forming operation. The pressing elements are configured for applying a pressing action in the pressing direction onto the deformation element during the dry-forming operation for establishing the deformation of the deformation element.

IPC Classes  ?

  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 3/22 - Charging or discharging
  • B27N 5/02 - Hollow articles
  • B27N 3/00 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/12 - Moulding of mats from fibres
  • B27N 5/00 - Manufacture of non-flat articles
  • B29C 33/38 - Moulds or coresDetails thereof or accessories therefor characterised by the material or the manufacturing process
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating

8.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number EP2024087260
Publication Number 2025/132688
Status In Force
Filing Date 2024-12-18
Publication Date 2025-06-26
Owner PULPAC AB (Sweden)
Inventor Larsson, Ove

Abstract

A cellulose product (1) and a method for producing a cellulose product (1) from a cellulose material (2), wherein the method comprises the steps of; arranging the cellulose material (2) in a forming mould (3); heating the forming mould (3) to a forming temperature in the range of 100°C to 300°C, and forming the cellulose product (1) from the cellulose material in the heated forming mould (3), by moulding the cellulose material (2) with a forming pressure, where a first product section (24) of the cellulose product (1) is moulded with a first forming pressure between 4-20 MPa, and where a second product section (25) of the cellulose product (1) is moulded with a second forming pressure greater than 100 MPa, wherein the cellulose material (2) is shaped into the three-dimensional cellulose product (1), and wherein the average density of the first product section (24) is below 1,30 g/cm3and the average density of the second product section (25) is greater than 1,30 g/cm3.

IPC Classes  ?

  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/00 - Manufacture of non-flat articles
  • B27N 5/02 - Hollow articles
  • B27N 1/00 - Pretreatment of moulding material
  • B65D 6/00 - Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal, plastics, wood or substitutes therefor

9.

MULTI-CAVITY FORMING MOULD SYSTEM AND METHOD FOR DRY-FORMING CELLULOSE PRODUCTS IN A MULTI-CAVITY FORMING MOULD SYSTEM

      
Application Number EP2024087265
Publication Number 2025/132692
Status In Force
Filing Date 2024-12-18
Publication Date 2025-06-26
Owner PULPAC AB (Sweden)
Inventor
  • Dunlop, Stuart
  • Ljungberg, Martin
  • Bergfjord, Mathias
  • Arlerot, Björn
  • Sjöstrand Jonsson, Felix
  • Högblom, Olle

Abstract

A multi-cavity forming mould system (S) for dry-forming a plurality of discrete cellulose products (1) into a three-dimensional shape (S3D) from an air-formed cellulose blank structure (2). Cutting devices (6) are in a cutting operation (Oc) during a product forming operation (Op) configured for cutting out a plurality of pre-determined sections (2s) of the cellulose blank structure (2) having a two-dimensional flat pattern (P2D). When the pre-determined sections (2s) are arranged in a forming mould (M) between corresponding first forming elements (3a) and second forming elements (4a) during the product forming operation (Op), the pre-determined sections (2s) are configured for being folded into a configuration corresponding to the three-dimensional shape (S3D) of the cellulose products (1). The first forming elements (3a) and the corresponding second forming elements (4a) are configured to apply a forming pressure (PF) during the product forming operation (Op) onto the folded pre-determined sections (2s) of the cellulose blank structure (2) associated with the first forming elements (3a) and the second forming elements (4a), such that the pre-determined sections (2s) are formed into the cellulose products (1).

IPC Classes  ?

  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/02 - Hollow articles
  • B31B 50/14 - Cutting, e.g. perforating, punching, slitting or trimming
  • B31B 50/59 - Shaping sheet material under pressure
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating
  • B27N 1/00 - Pretreatment of moulding material
  • B31D 5/00 - Multiple-step processes for making three-dimensional articles

10.

MULTI-CAVITY FORMING MOULD SYSTEM AND METHOD FOR DRY-FORMING CELLULOSE PRODUCTS IN A MULTI-CAVITY FORMING MOULD SYSTEM

      
Application Number EP2024087256
Publication Number 2025/132684
Status In Force
Filing Date 2024-12-18
Publication Date 2025-06-26
Owner PULPAC AB (Sweden)
Inventor
  • Dunlop, Stuart
  • Högblom, Olle
  • Ljungberg, Martin
  • Bergfjord, Mathias
  • Arlerot, Björn
  • Sjöstrand Jonsson, Felix

Abstract

A multi-cavity forming mould system (S) for dry-forming a plurality of discrete three-dimensional cellulose products (1) from an air-formed cellulose blank structure (2). The forming mould system comprises a forming mould (M) having a first mould part (3) and a second mould part (4) arranged for cooperating with each other during a product forming operation (Op). The first mould part comprises a plurality of first forming elements (3a) and the second mould part comprises a plurality of corresponding second forming elements (4a). The forming mould system comprises a blank transporting unit (T) configured to feed the cellulose blank structure (2) onto a blank support structure (5) arranged between the first mould part (3) and the second mould part (4) before the product forming operation. The blank support structure (5) is configured for holding the cellulose blank structure (2) in position between the first mould part (3) and the second mould part (4). The first forming elements (3a) and the corresponding second forming elements (4a) are configured to apply a forming pressure during the product forming operation onto pre-determined sections (2s) of the cellulose blank structure (2) associated with the first forming elements (3a) and the second forming elements (4a), such that the pre-determined sections (2s) are formed into the cellulose products (1). The forming mould (M) comprises first cutting devices (6) configured to pre-cut one or more openings (O) in the cellulose blank structure (2) in a pre-cutting operation (Opc) during the product forming operation (Op). The forming mould (M) comprises second cutting devices (7) configured to cut out the cellulose products (1) from the cellulose blank structure (2) in a cutting operation (Oc) during the product forming operation (Op) or after the product forming operation (Op). The blank support structure (5) comprises a plurality of sectioned openings (5op). The sectioned openings (5op) are configured for allowing passage of the first forming elements (3a) and/or the corresponding second forming elements (4a) during the product forming operation (Op).

IPC Classes  ?

  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/02 - Hollow articles
  • B31B 50/14 - Cutting, e.g. perforating, punching, slitting or trimming
  • B31B 50/59 - Shaping sheet material under pressure
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating
  • B27N 1/00 - Pretreatment of moulding material
  • B31D 5/00 - Multiple-step processes for making three-dimensional articles

11.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number EP2024087263
Publication Number 2025/132690
Status In Force
Filing Date 2024-12-18
Publication Date 2025-06-26
Owner PULPAC AB (Sweden)
Inventor
  • Bergfjord, Mathias
  • Litten, Neil Anthony
  • Mordue, Adrian
  • Jones, Mark
  • Fawcus, Philip
  • West, Grant
  • Ljungberg, Martin
  • Svedlind, Tobias

Abstract

A cellulose three-dimensional deep drawn cellulose Dry Moulded Fibre (DMF) product (1) and a method for producing a three-dimensional deep drawn cellulose Dry Moulded Fibre (DMF) product (1) having a bottom portion (3) and a side wall portion (4) from a cellulose blank structure (2) wherein the method comprises the steps of; heating a forming mould (7) to a forming temperature in the range of 100°C to 300°C; arranging the cellulose blank structure in the forming mould (7); and forming the cellulose product (1) from the cellulose blank structure (2) in the heated forming mould (7), by pressing the cellulose blank structure (2) with a forming pressure between 1 to 100 MPa, where the forming mould (7) comprises a first mould part (8) and a second mould part (9), and where a distance (D1) between a first side wall part (12) of the first mould part (8) and a second side wall part (13) of the second mould part (9) at an upper mould part (17) of the forming mould (7) in a closed state is greater than a distance (D2) between the first side wall part (12) of the first mould part (8) and the second side wall part (13) of the second mould part (9) at a lower mould part (17) of the forming mould (7) in the closed state.

IPC Classes  ?

  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/00 - Manufacture of non-flat articles
  • B27N 5/02 - Hollow articles
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating
  • B27N 1/00 - Pretreatment of moulding material
  • B31D 5/00 - Multiple-step processes for making three-dimensional articles
  • B65D 6/00 - Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal, plastics, wood or substitutes therefor

12.

DRY-FORMED CELLULOSE PRODUCT, METHOD FOR DRY-FORMING A CELLULOSE PRODUCT AND FORMING MOULD FOR DRY-FORMING A CELLULOSE PRODUCT

      
Application Number EP2024086176
Publication Number 2025/125548
Status In Force
Filing Date 2024-12-13
Publication Date 2025-06-19
Owner PULPAC AB (Sweden)
Inventor
  • Litten, Neil Anthony
  • Stone, Jamie
  • Mordue, Adrian
  • Bergfjord, Mathias
  • Ljungberg, Martin

Abstract

A dry-formed cellulose product comprising interconnected cellulose fibres. The cellulose product is arranged as a three-dimensional compressed fibre structure with an inner side and an outer side, where the inner side is delimiting an inner volume configured for holding one or more articles. The outer side comprises at least one structured zone, where the at least one structured zone is formed by a base surface and a plurality of grip elements.

IPC Classes  ?

  • B27N 5/02 - Hollow articles
  • B65D 1/34 - Trays or like shallow containers
  • B65D 1/44 - Corrugations
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B29C 33/42 - Moulds or coresDetails thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
  • B27N 3/00 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 5/00 - Manufacture of non-flat articles
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B31D 5/00 - Multiple-step processes for making three-dimensional articles
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials

13.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number EP2024082584
Publication Number 2025/104302
Status In Force
Filing Date 2024-11-15
Publication Date 2025-05-22
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Högblom, Olle

Abstract

A cellulose three-dimensional cellulose High Density Dry Moulded Fibre (HD- DMF) product (1) and an apparatus for producing a three-dimensional cellulose High Density Dry Moulded Fibre (HD-DMF) product (1) from a cellulose based material (2), wherein the apparatus is configured to perform the steps of; heating a forming mould (7) to a forming temperature in the range of 100°C to 300°C; arranging the cellulose based material in the forming mould (7), and forming the cellulose product (1) from the cellulose based material in the heated forming mould (7), by moulding the cellulose based material (2) with a forming pressure and by inducing vibrations to obtain a density of the 10 cellulose product (1) greater than 1,30 g/cm3.

IPC Classes  ?

  • B27N 1/00 - Pretreatment of moulding material
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/02 - Hollow articles
  • B31B 50/59 - Shaping sheet material under pressure
  • B31D 5/00 - Multiple-step processes for making three-dimensional articles
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating
  • B27N 3/16 - Transporting the material from mat moulding stations to pressesApparatus specially adapted for transporting the material or component parts therefor, e.g. cauls
  • B27N 3/22 - Charging or discharging
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/08 - Moulding or pressing
  • B27N 5/00 - Manufacture of non-flat articles
  • B65D 6/00 - Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal, plastics, wood or substitutes therefor
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/32 - Component parts, details or accessoriesAuxiliary operations
  • B29C 43/34 - Feeding the material to the mould or the compression means
  • B29C 43/50 - Removing moulded articles

14.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number EP2024082586
Publication Number 2025/104304
Status In Force
Filing Date 2024-11-15
Publication Date 2025-05-22
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Högblom, Olle
  • Hagberg, Yngve

Abstract

A cellulose three-dimensional cellulose High Density Dry Moulded Fibre (HD- DMF) product (1) and a method for producing a three-dimensional cellulose High Density Dry Moulded Fibre (HD-DMF) product (1) from a cellulose material (2), wherein the method comprises the steps of; heating a forming mould (7) to a forming temperature in the range of 100°C to 300°C; arranging the cellulose material in the forming mould (7), and forming the cellulose product (1) from the cellulose material in the heated forming mould (7), by moulding the cellulose material (2) with a forming pressure and by inducing vibrations to obtain a density of the cellulose product (1) greater than 1,30 g/cm3.

IPC Classes  ?

  • B27N 1/00 - Pretreatment of moulding material
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/02 - Hollow articles
  • B31B 50/59 - Shaping sheet material under pressure
  • B31D 5/00 - Multiple-step processes for making three-dimensional articles
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/08 - Moulding or pressing
  • B27N 5/00 - Manufacture of non-flat articles
  • B65D 6/00 - Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal, plastics, wood or substitutes therefor
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/32 - Component parts, details or accessoriesAuxiliary operations
  • B29C 43/34 - Feeding the material to the mould or the compression means

15.

A METHOD FOR PRODUCING A CELLULOSE SCREW CAP AND A CELLULOSE SCREW CAP

      
Application Number EP2024082589
Publication Number 2025/104306
Status In Force
Filing Date 2024-11-15
Publication Date 2025-05-22
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Högblom, Olle
  • Hagberg, Yngve

Abstract

A cellulose High Density Dry Moulded Fibre (HD-DMF) screw cap (1) and a method for producing a cellulose High Density Dry Moulded Fibre (HD-DMF) screw cap (1) from a cellulose material (2; 9; 10), wherein the method comprises the steps of; heating a forming mould (3) to a forming temperature in the range of 100°C to 300°C; arranging the cellulose material in the forming mould (3), and forming the cellulose screw cap (1) from the cellulose material in the heated forming mould (3), by moulding the cellulose material (2; 9; 10) with a forming pressure greater than 100 MPa to obtain a density of the cellulose screw cap (1) greater than 1,30 g/cm3.

IPC Classes  ?

  • B27N 1/00 - Pretreatment of moulding material
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/02 - Hollow articles
  • B31B 50/59 - Shaping sheet material under pressure
  • B31D 5/00 - Multiple-step processes for making three-dimensional articles
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/08 - Moulding or pressing
  • B27N 5/00 - Manufacture of non-flat articles
  • B65D 6/00 - Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal, plastics, wood or substitutes therefor
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/32 - Component parts, details or accessoriesAuxiliary operations
  • B29C 43/34 - Feeding the material to the mould or the compression means

16.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number EP2024082582
Publication Number 2025/104300
Status In Force
Filing Date 2024-11-15
Publication Date 2025-05-22
Owner PULPAC AB (Sweden)
Inventor Larsson, Ove

Abstract

A cellulose three-dimensional cellulose High Density Dry Moulded Fibre (HD- DMF) product (1) and a method for producing a three-dimensional cellulose High Density Dry Moulded Fibre (HD-DMF) product (1) from a high purity cellulose material comprising at least 95% cellulose fibres (2; 17; 19), wherein the method comprises the steps of; heating a forming mould (7) to a forming temperature in the range of 100°C to 300°C; arranging the high purity cellulose material in the forming mould (7), and forming the cellulose product (1) from the high purity cellulose material in the heated forming mould (7), by moulding the high purity cellulose material (2; 17; 19) with a forming pressure of at least 100 MPa to obtain a density of the cellulose product (1) greater than 1,30 g/cm3

IPC Classes  ?

  • B27N 1/00 - Pretreatment of moulding material
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/02 - Hollow articles
  • B31B 50/59 - Shaping sheet material under pressure
  • B31D 5/00 - Multiple-step processes for making three-dimensional articles
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/08 - Moulding or pressing
  • B27N 5/00 - Manufacture of non-flat articles
  • B65D 6/00 - Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal, plastics, wood or substitutes therefor
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles

17.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number EP2024082583
Publication Number 2025/104301
Status In Force
Filing Date 2024-11-15
Publication Date 2025-05-22
Owner PULPAC AB (Sweden)
Inventor Larsson, Ove

Abstract

A cellulose three-dimensional cellulose High Density Dry Moulded Fibre (HD- DMF) product (1) and a method for producing a three-dimensional cellulose High Density Dry Moulded Fibre (HD-DMF) product (1) from a cellulose material (2; 17; 19), wherein the method comprises the steps of; heating a forming mould (7) to a forming temperature in the range of 100°C to 300°C; arranging the cellulose material in the forming mould (7), and forming the cellulose product (1) from the cellulose material in the heated forming mould (7), by moulding the cellulose material (2; 17; 19) with a forming pressure of at least 100 MPa to obtain a density of the cellulose product (1) greater than 1,30 g/cm3.

IPC Classes  ?

  • B27N 1/00 - Pretreatment of moulding material
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/02 - Hollow articles
  • B31B 50/59 - Shaping sheet material under pressure
  • B31D 5/00 - Multiple-step processes for making three-dimensional articles
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/08 - Moulding or pressing
  • B27N 5/00 - Manufacture of non-flat articles
  • B65D 6/00 - Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal, plastics, wood or substitutes therefor
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/04 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles using movable moulds

18.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number EP2024082585
Publication Number 2025/104303
Status In Force
Filing Date 2024-11-15
Publication Date 2025-05-22
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Högblom, Olle
  • Hagberg, Yngve

Abstract

A cellulose three-dimensional cellulose High Density Dry Moulded Fibre (HD- DMF) product (1) and a method for producing a three-dimensional cellulose High Density Dry Moulded Fibre (HD-DMF) product (1) from a cellulose material (2), wherein the method comprises the steps of; heating a forming mould (7) to a forming temperature in the range of 100°C to 300°C; arranging the cellulose material in the forming mould (7), and forming the cellulose product (1) from the cellulose material in the heated forming mould (7), by moulding the cellulose material (2) with a forming pressure and by inducing vibrations to obtain a density of the cellulose product (1) greater than 1,30 g/cm3.

IPC Classes  ?

  • B27N 1/00 - Pretreatment of moulding material
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/02 - Hollow articles
  • B31B 50/59 - Shaping sheet material under pressure
  • B31D 5/00 - Multiple-step processes for making three-dimensional articles
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/08 - Moulding or pressing
  • B27N 5/00 - Manufacture of non-flat articles
  • B65D 6/00 - Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal, plastics, wood or substitutes therefor
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/32 - Component parts, details or accessoriesAuxiliary operations
  • B29C 43/34 - Feeding the material to the mould or the compression means

19.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number EP2024082587
Publication Number 2025/104305
Status In Force
Filing Date 2024-11-15
Publication Date 2025-05-22
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Högblom, Olle
  • Hagberg, Yngve

Abstract

A cellulose three-dimensional cellulose High Density Dry Moulded Fibre (HD- DMF) product (1) and a method for producing a three-dimensional cellulose High Density Dry Moulded Fibre (HD-DMF) product (1) from a cellulose material (2), wherein the method comprises the steps of; heating a forming mould (7) to a forming temperature in the range of 100°C to 300°C, where the forming mould (7) comprises a first mould part (8) and a second mould part (9); arranging the cellulose material in the forming mould (7); and forming the cellulose product (1) from the cellulose material (2) in the heated forming mould (7), by pressing the cellulose material (2) with a forming pressure to obtain a density of the cellulose product (1) greater than 1,30 g/cm3, and where the pressing of the cellulose material (2) includes rotating the first mould part (8) or the second mould part (9) of the heated forming mould (7) in a first direction during the pressing action.

IPC Classes  ?

  • B27N 1/00 - Pretreatment of moulding material
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/02 - Hollow articles
  • B31B 50/59 - Shaping sheet material under pressure
  • B31D 5/00 - Multiple-step processes for making three-dimensional articles
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/08 - Moulding or pressing
  • B27N 5/00 - Manufacture of non-flat articles
  • B65D 6/00 - Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal, plastics, wood or substitutes therefor
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles

20.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number EP2024073054
Publication Number 2025/036997
Status In Force
Filing Date 2024-08-16
Publication Date 2025-02-20
Owner PULPAC AB (Sweden)
Inventor Westerberg, Niklas Olov

Abstract

A method for producing a three-dimensional cellulose product and a cellulose product (1) formed from a multi-layer cellulose blank structure (2), where the cellulose product (1) comprises a first paper layer (4), a dry-formed cellulose fibres layer (3) and a second paper layer (5), where the first paper layer (4) 5 and/or the second paper layer (5) is a stretchable paper layer.

IPC Classes  ?

  • B32B 1/00 - Layered products having a non-planar shape
  • B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
  • B32B 7/022 - Mechanical properties
  • B32B 7/027 - Thermal properties
  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • B32B 29/02 - Layered products essentially comprising paper or cardboard next to a fibrous or filamentary layer
  • B32B 29/06 - Layered products essentially comprising paper or cardboard specially treated, e.g. surfaced, parchmentised

21.

METHOD FOR TRANSPORTING AN AIR-FORMED CELLULOSE BLANK STRUCTURE AND BUFFERING MODULE

      
Application Number EP2024066209
Publication Number 2025/011855
Status In Force
Filing Date 2024-06-12
Publication Date 2025-01-16
Owner PULPAC AB (Sweden)
Inventor
  • Högblom, Olle
  • Arlerot, Björn
  • Dahl, Anders
  • Larsson, Patrik

Abstract

Method for transporting an air-formed cellulose blank structure to a forming mould via a buffering module configured for alternatingly operating in a buffering mode and a feeding mode. The forming mould is arranged for dry-forming cellulose products from the cellulose blank structure. The buffering module comprises a first blank carrying structure, a second blank carrying structure, a blank redirection structure movably arranged between the first blank carrying structure and the second blank carrying structure, and an application device movably arranged in connection to the second blank carrying structure. The blank redirection structure is configured for feeding the cellulose blank structure from the first blank carrying structure to the second blank carrying structure.

IPC Classes  ?

  • B31B 50/10 - Feeding or positioning webs
  • B31B 50/59 - Shaping sheet material under pressure
  • B31B 50/74 - Auxiliary operations
  • B65H 20/24 - Advancing webs by looping or like devices
  • B31B 120/40 - Construction of rigid or semi-rigid containers lined or internally reinforced

22.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT WITH AN OPENING AND A CELLULOSE PRODUCT WITH AN OPENING

      
Application Number EP2024061824
Publication Number 2024/251437
Status In Force
Filing Date 2024-04-30
Publication Date 2024-12-12
Owner PULPAC AB (Sweden)
Inventor Bergfjord, Mathias

Abstract

A method for producing a cellulose product (1) comprising an opening (4) with a forming mould (5), where the forming mould (5) comprises a first cutting edge (10) and a second cutting edge (12), wherein the method comprises the steps of; forming the cellulose blank structure (2) from a dry-formed cellulose fibres 5 layer (3); positioning the cellulose blank structure (2) in the forming mould (5) when the forming mould (5) is in an idle state (27); cutting a slit (13) in the cellulose blank structure (2) when the forming mould (5) is in an intermediate state (28); and forming the cellulose product (1) from the cellulose blank structure (2) in the forming mould (5) by positioning the forming mould (5) in 10 the pressing state (29), where the opening (4) is formed between a first cut edge (19) and a second cut edge (20) of the cellulose blank structure (2) when the forming mould (5) moves from the intermediate state (28) to the pressing state (29), and where the opening (4) is perpendicular to the pressing direction of the forming mould (5).

IPC Classes  ?

  • B31B 50/10 - Feeding or positioning webs
  • B31B 50/14 - Cutting, e.g. perforating, punching, slitting or trimming
  • B31B 50/59 - Shaping sheet material under pressure
  • B31B 50/74 - Auxiliary operations
  • B65D 43/02 - Removable lids or covers
  • B65D 43/16 - Non-removable lids or covers hinged for upward or downward movement
  • B31D 1/00 - Multiple-step processes for making flat articles
  • B31B 110/10 - Shape of rigid or semi-rigid containers having a cross section of varying size or shape, e.g. conical or pyramidal
  • B31B 110/35 - Shape of rigid or semi-rigid containers having a polygonal cross section rectangular, e.g. square
  • B31B 120/10 - Construction of rigid or semi-rigid containers provided with covers, e.g. lids
  • B31B 120/40 - Construction of rigid or semi-rigid containers lined or internally reinforced
  • B31B 120/50 - Construction of rigid or semi-rigid containers covered or externally reinforced

23.

METHOD FOR DRY-FORMING A CELLULOSE PRODUCT FROM CELLULOSE FIBRES IN A PRODUCT FORMING UNIT AND A PRODUCT FORMING UNIT

      
Application Number EP2024061729
Publication Number 2024/245665
Status In Force
Filing Date 2024-04-29
Publication Date 2024-12-05
Owner PULPAC AB (Sweden)
Inventor Högblom, Olle

Abstract

A method and product forming unit for dry-forming a three-dimensional cellulose product from cellulose fibres. The product forming unit comprises a forming mould. The product forming unit is configured for arranging the loose and separated cellulose fibres onto three-dimensional surfaces of a plurality of three-dimensional shaping structures, where the three-dimensional surfaces have shapes corresponding to a shape of a three-dimensional pressing surface of the forming mould. The forming mould is configured for dry-forming a plurality of cellulose products into three- dimensional compressed structures in a pressing operation from the cellulose fibres. A formed stack of the plurality of three-dimensional shaping structures with the cellulose fibres arranged onto the three-dimensional surfaces is positioned in the forming mould. The stack of the three-dimensional shaping structures with the cellulose fibres is pressed and heated in the forming mould with a forming pressure and a forming temperature.

IPC Classes  ?

  • B27N 3/08 - Moulding or pressing
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/00 - Manufacture of non-flat articles

24.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number EP2024061264
Publication Number 2024/227672
Status In Force
Filing Date 2024-04-24
Publication Date 2024-11-07
Owner PULPAC AB (Sweden)
Inventor
  • Sundell, Roderick
  • Jabbari, Mosi
  • Viberg, Linda
  • Andner, Urban

Abstract

A method for producing a cellulose product and a cellulose product (1) formed from a multi-layer cellulose blank structure (2), where the cellulose product (1) is formed in a heated forming mould (7) by pressing the multi-layer cellulose blank structure (2) with a forming pressure of at least 1 MPa, where the cellulose product (1) comprises a first tissue layer (4) arranged on a first side of a dry-formed cellulose fibres layer (3), a plastic layer (6) arranged on a second side of the dry-formed cellulose fibres layer (3) and a second tissue layer (5) arranged on the plastic layer (6).

IPC Classes  ?

  • B31B 50/59 - Shaping sheet material under pressure
  • B32B 1/00 - Layered products having a non-planar shape
  • B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • B65D 1/34 - Trays or like shallow containers
  • B27N 5/00 - Manufacture of non-flat articles

25.

METHOD FOR DRY-FORMING A CELLULOSE PRODUCT FROM CELLULOSE FIBRES IN A PRODUCT FORMING UNIT AND A PRODUCT FORMING UNIT

      
Application Number EP2024059422
Publication Number 2024/227560
Status In Force
Filing Date 2024-04-08
Publication Date 2024-11-07
Owner PULPAC AB (Sweden)
Inventor
  • Ekwall, Peter
  • Högblom, Olle

Abstract

A product forming unit and method for dry-forming a three-dimensional cellulose product from cellulose fibres. The product forming unit comprises a fibre transporting unit and a forming mould. The fibre transporting unit is configured for feeding loose and separated cellulose fibres from the fibre transporting unit to a three-dimensional shaping structure by means of a flow of air as carrying medium for the cellulose fibres. The loose and separated cellulose fibres are arranged onto a three-dimensional surface of the three-dimensional shaping structure by means of the flow of air for air-forming a three-dimensional body of cellulose fibres. The three-dimensional surface of the three-dimensional shaping structure has a shape corresponding to a shape of a three-dimensional pressing surface of the forming mould. The forming mould is configured for dry-forming the cellulose product into a three-dimensional compressed structure in a pressing operation from the three-dimensional body of cellulose fibres, by pressing and heating the three-dimensional shaping structure with the three-dimensional body of cellulose fibres with a forming pressure and a forming temperature.

IPC Classes  ?

  • B27N 3/14 - Distributing or orienting the particles or fibres
  • B27N 3/16 - Transporting the material from mat moulding stations to pressesApparatus specially adapted for transporting the material or component parts therefor, e.g. cauls
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/02 - Hollow articles
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/52 - Heating or cooling
  • B65D 13/00 - Containers having bodies formed by interconnecting two or more rigid, or substantially rigid, components made wholly or mainly of the same material, other than metal, plastics, wood or substitutes therefor
  • B65D 6/00 - Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal, plastics, wood or substitutes therefor
  • B65D 23/02 - Linings or internal coatings
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • B31B 50/59 - Shaping sheet material under pressure
  • B31B 50/74 - Auxiliary operations
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/12 - Moulding of mats from fibres
  • B27N 5/00 - Manufacture of non-flat articles
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • B29K 105/00 - Condition, form or state of moulded material
  • B29K 105/12 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles

26.

METHOD FOR DRY-FORMING A CELLULOSE PRODUCT FROM CELLULOSE FIBRES IN A PRODUCT FORMING UNIT, A PRODUCT FORMING UNIT, AND A CELLULOSE PRODUCT

      
Application Number EP2024059431
Publication Number 2024/227561
Status In Force
Filing Date 2024-04-08
Publication Date 2024-11-07
Owner PULPAC AB (Sweden)
Inventor
  • Ekwall, Peter
  • Högblom, Olle

Abstract

A product forming unit and method for dry-forming a three-dimensional cellulose product from cellulose fibres. The product forming unit comprises a fibre transporting unit and a forming mould. The fibre transporting unit is configured for feeding loose and separated cellulose fibres from the fibre transporting unit to a three-dimensional shaping structure by means of a flow of air as carrying medium for the cellulose fibres. The loose and separated cellulose fibres are arranged onto a three-dimensional surface of the three-dimensional shaping structure. The three-dimensional surface of the three-dimensional shaping structure has a shape corresponding to a shape of a three-dimensional pressing surface of the forming mould. The forming mould is configured for dry-forming the cellulose product into a three-dimensional compressed structure in a pressing operation from the three-dimensional body of cellulose fibres and the three-dimensional shaping structure, by pressing and heating the three- dimensional shaping structure with the three-dimensional body of cellulose fibres with a forming pressure and a forming temperature. The cellulose fibres in the three- dimensional body of cellulose fibres and the three-dimensional shaping structure are integrated into the three-dimensional compressed structure.

IPC Classes  ?

  • B27N 3/14 - Distributing or orienting the particles or fibres
  • B27N 3/16 - Transporting the material from mat moulding stations to pressesApparatus specially adapted for transporting the material or component parts therefor, e.g. cauls
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/02 - Hollow articles
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/52 - Heating or cooling
  • B65D 13/00 - Containers having bodies formed by interconnecting two or more rigid, or substantially rigid, components made wholly or mainly of the same material, other than metal, plastics, wood or substitutes therefor
  • B65D 6/00 - Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal, plastics, wood or substitutes therefor
  • B65D 23/02 - Linings or internal coatings
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • B31B 50/59 - Shaping sheet material under pressure
  • B31B 50/74 - Auxiliary operations
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/12 - Moulding of mats from fibres
  • B27N 5/00 - Manufacture of non-flat articles
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • B29K 105/00 - Condition, form or state of moulded material
  • B29K 105/12 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles

27.

A MILL FOR AN AIR-FORMED CELLULOSE BLANK PRODUCT AND METHOD FOR USING THE SAME

      
Application Number EP2024060596
Publication Number 2024/227626
Status In Force
Filing Date 2024-04-18
Publication Date 2024-11-07
Owner PULPAC AB (Sweden)
Inventor Larsson, Ove

Abstract

A mill (10) for separating fibres from a compressed pulp sheet (18, 19) for forming non-flat cellulose products from an air-formed cellulose blank structure (2), the mill (10) comprising: a mill head (11) for separating fibres from a compressed pulp sheet (18, 19), an enclosure (12) enclosing the mill head (11), an inlet opening (13) for air, an outlet opening (14) for an air-fibre mixture, an infeed region (15) arranged to feed a first pulp sheet (18) or a second pulp sheet (19) to the mill head (11), wherein the infeed region (15) comprises a first infeed path (16) and a second infeed path (17), where the first infeed path (16) is arranged to be in an active state when the second infeed path (17) is in an idle state, where a first pulp sheet (18) is arranged to be fed to the mill head (11) by the active first infeed path (16), and where the second pulp sheet (19) is arranged to rest in the idle second infeed path (17), wherein the infeed region (15) is arranged to switch state of the infeed paths (16, 17) when a signal is issued indicating the end of a first pulp sheet (18) in the active first infeed path (16).

IPC Classes  ?

  • D21B 1/06 - Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods
  • B02C 18/22 - Feed or discharge means
  • B02C 18/14 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives within horizontal containers
  • B27N 1/00 - Pretreatment of moulding material
  • B27N 5/00 - Manufacture of non-flat articles

28.

METHOD FOR DRY-FORMING CELLULOSE PRODUCTS FROM CELLULOSE FIBRES IN A PRODUCT FORMING UNIT AND A PRODUCT FORMING UNIT

      
Application Number EP2024056323
Publication Number 2024/199966
Status In Force
Filing Date 2024-03-11
Publication Date 2024-10-03
Owner PULPAC AB (Sweden)
Inventor
  • Mordue, Adrian
  • Litten, Neil Anthony
  • Larsson, Ove
  • Högblom, Olle
  • Dunlop, Stuart
  • Fawcus, Philip
  • Hartley, Matthew
  • Welsh, Craig
  • West, Grant
  • Pattrick, Mark

Abstract

A method for dry-forming a cellulose product from cellulose fibres in a product forming unit and product forming unit, where the product forming unit comprises at least one shaping element and a forming mould. Loose and separated cellulose fibres are provided and the loose and separated cellulose fibres are fed into a flow of air for transporting the cellulose fibres to the at least one shaping element by means of the flow of air as carrying medium for the cellulose fibres; arranging the loose and separated cellulose fibres onto a three-dimensional surface of the at least one shaping element by means of the flow of air for air-forming at least one three-dimensional body of cellulose fibres; dry-forming the cellulose product into a three-dimensional compressed fibre structure by pressing and heating at least one three-dimensional body of cellulose fibres in a forming mould with a forming pressure in the range of 1-600 MPa and with a forming temperature in the range of 60-300 °C

IPC Classes  ?

  • B29C 33/38 - Moulds or coresDetails thereof or accessories therefor characterised by the material or the manufacturing process
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/52 - Heating or cooling
  • B29C 43/58 - Measuring, controlling or regulating
  • B29C 49/02 - Combined blow-moulding and manufacture of the preform or the parison
  • B29C 49/00 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor
  • B27N 3/14 - Distributing or orienting the particles or fibres
  • B27N 3/16 - Transporting the material from mat moulding stations to pressesApparatus specially adapted for transporting the material or component parts therefor, e.g. cauls
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/02 - Hollow articles
  • B65D 13/00 - Containers having bodies formed by interconnecting two or more rigid, or substantially rigid, components made wholly or mainly of the same material, other than metal, plastics, wood or substitutes therefor
  • B65D 6/00 - Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal, plastics, wood or substitutes therefor
  • B65D 23/02 - Linings or internal coatings
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • B29B 11/16 - Making preforms characterised by structure or composition comprising fillers or reinforcements
  • B29C 31/04 - Feeding, e.g. into a mould cavity
  • B29C 31/08 - Feeding, e.g. into a mould cavity of preforms
  • B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • B29K 105/00 - Condition, form or state of moulded material
  • B29K 105/12 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/12 - Moulding of mats from fibres
  • B27N 5/00 - Manufacture of non-flat articles

29.

METHOD FOR DRY-FORMING CELLULOSE PRODUCTS FROM CELLULOSE FIBRES IN A PRODUCT FORMING UNIT AND A PRODUCT FORMING UNIT

      
Application Number EP2024056339
Publication Number 2024/199968
Status In Force
Filing Date 2024-03-11
Publication Date 2024-10-03
Owner PULPAC AB (Sweden)
Inventor
  • Högblom, Olle
  • Larsson, Ove

Abstract

A method for dry-forming a three-dimensional cellulose product from cellulose fibres in a product forming unit. The product forming unit comprises a fibre transporting unit, a shaping unit comprising one or more shaping elements having a three-dimensional surface, and a forming mould M. The one or more shaping elements are arranged on a movable support structure. The method comprises the steps: providing loose and separated cellulose fibres and feeding the loose and separated cellulose fibres to the one or more shaping elements by means of flow of air, and arranging the loose and separated cellulose fibres onto the one or more shaping elements, wherein the three-dimensional surfaces of the one or more shaping elements have a shape corresponding to or similar to a final shape of the cellulose product formed in the forming mould; dry-forming the cellulose product into a three-dimensional compressed fibre structure in a pressing operation by pressing and heating.

IPC Classes  ?

  • B29C 33/38 - Moulds or coresDetails thereof or accessories therefor characterised by the material or the manufacturing process
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/52 - Heating or cooling
  • B29C 43/58 - Measuring, controlling or regulating
  • B29C 49/02 - Combined blow-moulding and manufacture of the preform or the parison
  • B29C 49/00 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor
  • B27N 3/14 - Distributing or orienting the particles or fibres
  • B27N 3/16 - Transporting the material from mat moulding stations to pressesApparatus specially adapted for transporting the material or component parts therefor, e.g. cauls
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/02 - Hollow articles
  • B65D 13/00 - Containers having bodies formed by interconnecting two or more rigid, or substantially rigid, components made wholly or mainly of the same material, other than metal, plastics, wood or substitutes therefor
  • B65D 6/00 - Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal, plastics, wood or substitutes therefor
  • B65D 23/02 - Linings or internal coatings
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • B29C 43/34 - Feeding the material to the mould or the compression means
  • B31B 50/59 - Shaping sheet material under pressure
  • B31B 50/74 - Auxiliary operations
  • B29B 11/16 - Making preforms characterised by structure or composition comprising fillers or reinforcements
  • B29C 31/04 - Feeding, e.g. into a mould cavity
  • B29C 31/08 - Feeding, e.g. into a mould cavity of preforms
  • B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • B29K 105/00 - Condition, form or state of moulded material
  • B29K 105/12 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/12 - Moulding of mats from fibres
  • B27N 5/00 - Manufacture of non-flat articles

30.

METHOD FOR DRY-FORMING CELLULOSE PRODUCTS FROM CELLULOSE FIBRES IN A PRODUCT FORMING UNIT AND A PRODUCT FORMING UNIT

      
Application Number EP2024056506
Publication Number 2024/199989
Status In Force
Filing Date 2024-03-12
Publication Date 2024-10-03
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Högblom, Olle

Abstract

A method for dry-forming a cellulose product from cellulose fibres in a product forming unit and product forming unit, where the product forming unit comprises a forming mould (M) comprising a first mould part (3a) and a second mould part (3b), where the first mould part (3a) and/or the second mould part (3b) is configured as a shaping element (2). Loose and separated cellulose fibres are provided and the loose and separated cellulose fibres are fed into a flow of air for transporting the cellulose fibres to the at least one shaping element by means of the flow of air as carrying medium for the cellulose fibres; arranging the loose and separated cellulose fibres onto a three-dimensional surface of the at least one shaping element by means of the flow of air for forming at least one three-dimensional body of cellulose fibres; dry-forming the cellulose product into a three-dimensional compressed fibre structure by pressing and heating at least one three-dimensional body of cellulose fibres in a forming mould with a forming pressure in the range of 1-600 MPa, and with a forming temperature in the range of 60-300 °C.

IPC Classes  ?

  • B29C 33/38 - Moulds or coresDetails thereof or accessories therefor characterised by the material or the manufacturing process
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/52 - Heating or cooling
  • B29C 43/58 - Measuring, controlling or regulating
  • B29C 49/02 - Combined blow-moulding and manufacture of the preform or the parison
  • B29C 49/00 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor
  • B27N 3/14 - Distributing or orienting the particles or fibres
  • B27N 3/16 - Transporting the material from mat moulding stations to pressesApparatus specially adapted for transporting the material or component parts therefor, e.g. cauls
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/02 - Hollow articles
  • B65D 13/00 - Containers having bodies formed by interconnecting two or more rigid, or substantially rigid, components made wholly or mainly of the same material, other than metal, plastics, wood or substitutes therefor
  • B65D 6/00 - Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal, plastics, wood or substitutes therefor
  • B65D 23/02 - Linings or internal coatings
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • B29C 43/34 - Feeding the material to the mould or the compression means
  • B31B 50/59 - Shaping sheet material under pressure
  • B31B 50/74 - Auxiliary operations
  • B29B 11/16 - Making preforms characterised by structure or composition comprising fillers or reinforcements
  • B29C 31/04 - Feeding, e.g. into a mould cavity
  • B29C 31/08 - Feeding, e.g. into a mould cavity of preforms
  • B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • B29K 105/00 - Condition, form or state of moulded material
  • B29K 105/12 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/12 - Moulding of mats from fibres
  • B27N 5/00 - Manufacture of non-flat articles

31.

METHOD FOR DRY-FORMING A CELLULOSE PRODUCT AND PRODUCT FORMING UNIT FOR DRY-FORMING A CELLULOSE PRODUCT

      
Application Number EP2023076427
Publication Number 2024/068561
Status In Force
Filing Date 2023-09-25
Publication Date 2024-04-04
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Ekwall, Peter

Abstract

A product forming unit comprising a forming mould and method for dry-forming a cellulose product from cellulose fibres in a product forming unit comprising a forming mould. The forming mould comprises upper mould parts and lower mould parts forming a forming cavity. A flexible membrane connected to and arranged in fluid communication with a pressure lance is arranged in the forming cavity. The method comprises the steps: opening the forming mould and arranging cellulose fibres into the open forming mould; closing the forming mould around the cellulose fibres, where upon closing of the forming mould, the upper mould parts are moved towards each other in a lateral direction, and the lower mould parts are moved towards each other in the lateral direction and in a longitudinal direction towards the flexible membrane; inflating the flexible membrane with a pressure medium entering from the pressure lance and applying a forming pressure onto the cellulose fibres by pressing the cellulose fibres against the upper mould parts and lower mould parts by means of the inflated flexible membrane, and applying a forming temperature onto the cellulose fibres, for dry-forming the cellulose product with a three-dimensional compressed fibre structure having a closed bottom portion and an upper portion.

IPC Classes  ?

  • B31B 50/36 - Folding sheets, blanks or webs by continuously feeding the sheets, blanks or webs to stationary members, e.g. plates, ploughs or cores
  • B31B 50/59 - Shaping sheet material under pressure
  • B31B 50/74 - Auxiliary operations
  • B27N 5/02 - Hollow articles
  • B31B 100/00 - Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
  • B31B 110/10 - Shape of rigid or semi-rigid containers having a cross section of varying size or shape, e.g. conical or pyramidal
  • B31B 110/20 - Shape of rigid or semi-rigid containers having a curved cross section, e.g. circular
  • B31B 120/00 - Construction of rigid or semi-rigid containers

32.

METHOD FOR DRY-FORMING A CELLULOSE BOTTLE, CELLULOSE BOTTLE FORMING UNIT AND CELLULOSE BOTTLE

      
Application Number EP2023076428
Publication Number 2024/068562
Status In Force
Filing Date 2023-09-25
Publication Date 2024-04-04
Owner PULPAC AB (Sweden)
Inventor Larsson, Ove

Abstract

A bottle forming unit and method for dry-forming a cellulose bottle from an air-formed cellulose blank structure in a bottle forming unit. The dry-formed cellulose bottle comprises a neck portion, a closed bottom portion, and a mid-portion arranged between the closed bottom portion and the neck portion. The mid-portion is arranged in fluid communication with the neck portion. The dry-formed cellulose blank structure is shaped into a shaped cellulose blank structure, where the shaped cellulose blank structure has a tube-like configuration with an inner surface and an outer surface. A first section of the shaped cellulose blank structure is fed to a first forming mould and a semi-closed bottom portion of the cellulose bottle is formed from the first section in the first forming mould, simultaneously with forming the neck portion of a directly preceding cellulose bottle from the first section in the first forming mould. A following second section of the shaped cellulose blank structure is fed to the first forming mould and the neck portion of the cellulose bottle is formed from the second section in the first forming mould, simultaneously with forming a semi-closed bottom portion of a directly following cellulose bottle from the second section in the first forming mould.

IPC Classes  ?

  • B31B 50/36 - Folding sheets, blanks or webs by continuously feeding the sheets, blanks or webs to stationary members, e.g. plates, ploughs or cores
  • B31B 50/59 - Shaping sheet material under pressure
  • B31B 50/74 - Auxiliary operations
  • B27N 5/02 - Hollow articles
  • B31B 50/42 - Folding sheets, blanks or webs by continuously feeding the sheets, blanks or webs to stationary members, e.g. plates, ploughs or cores the members being forming-tubes acting externally
  • B31B 100/00 - Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
  • B31B 110/10 - Shape of rigid or semi-rigid containers having a cross section of varying size or shape, e.g. conical or pyramidal
  • B31B 110/20 - Shape of rigid or semi-rigid containers having a curved cross section, e.g. circular
  • B31B 120/00 - Construction of rigid or semi-rigid containers
  • B31B 105/00 - Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs

33.

METHOD FOR DRY-FORMING A CELLULOSE BOTTLE, CELLULOSE BOTTLE FORMING UNIT AND CELLULOSE BOTTLE

      
Application Number EP2023066247
Publication Number 2024/068057
Status In Force
Filing Date 2023-06-16
Publication Date 2024-04-04
Owner PULPAC AB (Sweden)
Inventor Larsson, Ove

Abstract

A bottle forming unit and method for dry-forming a cellulose bottle from an air-formed cellulose blank structure in a bottle forming unit. The dry-formed cellulose bottle comprises a neck portion, a closed bottom portion, and a mid-portion arranged between the closed bottom portion and the neck portion. The mid-portion is arranged in fluid communication with the neck portion. The dry-formed cellulose blank structure is shaped into a shaped cellulose blank structure, where the shaped cellulose blank structure has a tube-like configuration with an inner surface and an outer surface. A first section of the shaped cellulose blank structure is fed to a first forming mould and a semi-closed bottom portion of the cellulose bottle is formed from the first section in the first forming mould, simultaneously with forming the neck portion of a directly preceding cellulose bottle from the first section in the first forming mould. A following second section of the shaped cellulose blank structure is fed to the first forming mould and the neck portion of the cellulose bottle is formed from the second section in the first forming mould, simultaneously with forming a semi-closed bottom portion of a directly following cellulose bottle from the second section in the first forming mould.

IPC Classes  ?

  • B31B 50/36 - Folding sheets, blanks or webs by continuously feeding the sheets, blanks or webs to stationary members, e.g. plates, ploughs or cores
  • B31B 50/59 - Shaping sheet material under pressure
  • B31B 50/74 - Auxiliary operations
  • B31B 100/00 - Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
  • B31B 110/10 - Shape of rigid or semi-rigid containers having a cross section of varying size or shape, e.g. conical or pyramidal
  • B31B 110/20 - Shape of rigid or semi-rigid containers having a curved cross section, e.g. circular
  • B31B 120/00 - Construction of rigid or semi-rigid containers

34.

METHOD FOR DRY-FORMING A CELLULOSE BOTTLE, CELLULOSE BOTTLE FORMING UNIT AND CELLULOSE BOTTLE

      
Application Number EP2023076468
Publication Number 2024/068585
Status In Force
Filing Date 2023-09-26
Publication Date 2024-04-04
Owner PULPAC AB (Sweden)
Inventor Larsson, Ove

Abstract

A bottle forming unit and method for dry-forming at least a part of a cellulose bottle from an air-formed cellulose blank structure in a bottle forming unit. The dry-formed cellulose blank structure is shaped into a shaped cellulose blank structure in a shaping unit comprising a forming shoulder, where the shaped cellulose blank structure has a tube-like configuration with an inner surface and an outer surface.

IPC Classes  ?

  • B31B 50/36 - Folding sheets, blanks or webs by continuously feeding the sheets, blanks or webs to stationary members, e.g. plates, ploughs or cores
  • B31B 50/59 - Shaping sheet material under pressure
  • B31B 50/74 - Auxiliary operations
  • B31B 50/42 - Folding sheets, blanks or webs by continuously feeding the sheets, blanks or webs to stationary members, e.g. plates, ploughs or cores the members being forming-tubes acting externally
  • B27N 5/02 - Hollow articles
  • B31B 100/00 - Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
  • B31B 110/10 - Shape of rigid or semi-rigid containers having a cross section of varying size or shape, e.g. conical or pyramidal
  • B31B 110/20 - Shape of rigid or semi-rigid containers having a curved cross section, e.g. circular
  • B31B 120/00 - Construction of rigid or semi-rigid containers
  • B31B 105/00 - Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs

35.

PRODUCT FORMING UNIT FOR DRY-FORMING A CELLULOSE PRODUCT AND METHOD FOR DRY-FORMING A CELLULOSE PRODUCT

      
Application Number EP2023076469
Publication Number 2024/068586
Status In Force
Filing Date 2023-09-26
Publication Date 2024-04-04
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Ekwall, Peter

Abstract

A product forming unit and method for dry-forming a cellulose product from cellulose fibres, where the product forming unit comprises a forming mould having a first mould part and a second mould part forming a forming cavity and a pressure lance comprising a first end and a second end. The second end of the pressure lance is movably arranged relative to the first mould part and/or the second mould part between a first position in the open state of the forming mould and a second position in the closed state of the forming mould.

IPC Classes  ?

  • B31B 50/36 - Folding sheets, blanks or webs by continuously feeding the sheets, blanks or webs to stationary members, e.g. plates, ploughs or cores
  • B31B 50/59 - Shaping sheet material under pressure
  • B31B 50/74 - Auxiliary operations
  • B31B 50/42 - Folding sheets, blanks or webs by continuously feeding the sheets, blanks or webs to stationary members, e.g. plates, ploughs or cores the members being forming-tubes acting externally
  • B27N 5/02 - Hollow articles
  • B31B 100/00 - Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
  • B31B 110/10 - Shape of rigid or semi-rigid containers having a cross section of varying size or shape, e.g. conical or pyramidal
  • B31B 110/20 - Shape of rigid or semi-rigid containers having a curved cross section, e.g. circular
  • B31B 120/00 - Construction of rigid or semi-rigid containers
  • B31B 105/00 - Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs

36.

DRY-FORMING MOULD SYSTEM AND METHOD FOR COLLECTING CELLULOSE PRODUCTS IN A DRY-FORMING MOULD SYSTEM

      
Application Number EP2023073537
Publication Number 2024/061575
Status In Force
Filing Date 2023-08-28
Publication Date 2024-03-28
Owner PULPAC AB (Sweden)
Inventor Larsson, Ove

Abstract

A dry-forming mould system comprising a forming mould for dry-forming cellulose products from an air-formed cellulose blank structure. The forming mould comprises a first mould part and a second mould part configured for interacting with each other during dry-forming of the cellulose products from the air-formed cellulose blank structure in the forming mould. The dry-forming mould system comprises a transporting unit and a collecting unit, and the transporting unit is configured for transporting the dry-formed cellulose products from the forming mould to the collecting unit. The collecting unit comprises an elongated product flow channel configured for receiving and guiding the cellulose products, and the product flow channel is configured for receiving several consecutive cellulose products from the forming mould.

IPC Classes  ?

  • B31D 5/02 - Multiple-step processes for making three-dimensional articles including pressing
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating
  • B31D 5/00 - Multiple-step processes for making three-dimensional articles
  • B31B 50/10 - Feeding or positioning webs
  • B31B 50/14 - Cutting, e.g. perforating, punching, slitting or trimming
  • B31B 50/98 - Delivering in stacks or bundles
  • B26D 7/18 - Means for removing cut-out material or waste
  • B26F 1/40 - Cutting-outStamping-out using a press, e.g. of the ram type
  • B26F 1/44 - Cutters thereforDies therefor
  • B31B 50/59 - Shaping sheet material under pressure
  • D21J 3/00 - Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
  • B27N 5/00 - Manufacture of non-flat articles
  • B26D 7/06 - Arrangements for feeding or delivering work of other than sheet, web, or filamentary form

37.

METHOD FOR TRANSPORTING A CELLULOSE BLANK STRUCTURE VIA A BUFFERING MODULE AND BUFFERING MODULE

      
Application Number EP2023065270
Publication Number 2024/008383
Status In Force
Filing Date 2023-06-07
Publication Date 2024-01-11
Owner PULPAC AB (Sweden)
Inventor Högblom, Olle

Abstract

A method for transporting an air-formed cellulose blank structure to a forming mould via a buffering module, where the cellulose blank structure has a first side and an opposite second side. The forming mould is arranged for dry-forming cellulose products from the cellulose blank structure. The buffering module comprises a first endless belt unit, a second endless belt unit, and a third endless belt unit, where the second endless belt unit is arranged in-between and in a longitudinal overlapping relationship to the first endless belt unit and the third endless belt unit. The second endless belt unit is movably arranged relative to the first endless belt unit and the third endless belt unit. The method comprises the steps: continuously feeding the cellulose blank structure on the first endless belt unit in a first feeding direction, and redirecting the cellulose blank structure to the second endless belt unit; feeding the cellulose blank structure on the second endless belt unit in a second feeding direction being at least partly opposite the first feeding direction, where the second endless belt unit alternatingly is longitudinally moved in opposite directions relative to the first endless belt unit and the third endless belt unit, and redirecting the cellulose blank structure to the third endless belt unit; intermittently feeding the cellulose blank structure on the third endless belt unit in a third feeding direction at least partly coinciding with the first feeding direction.

IPC Classes  ?

  • B65H 20/24 - Advancing webs by looping or like devices
  • B65H 20/06 - Advancing webs by friction band

38.

FORMING MOULD COMPRISING A MOVABLE ELEMENT AND METHOD FOR FORMING CELLULOSE PRODUCTS

      
Application Number EP2023066250
Publication Number 2024/002723
Status In Force
Filing Date 2023-06-16
Publication Date 2024-01-04
Owner PULPAC AB (Sweden)
Inventor
  • Ekstrand, Niklas
  • Arlerot, Björn
  • Bergfjord, Mathias
  • Sjöstrand Jonsson, Felix
  • Ljungberg, Martin
  • Högblom, Olle

Abstract

A forming mould for forming three-dimensional cellulose products from an air-formed cellulose blank structure. The forming mould comprises a first mould part and a second mould part. The first mould part and the second mould part are movable relative to each other in a pressing direction and arranged to be pressed relative to each other during forming of the cellulose products. The first mould part comprises a movable element displaceable between an extended state and a retracted state, where the movable element in the extended state is arranged as a protruding body extending in the pressing direction relative to a surrounding pressing surface of the first mould part. The movable element is in the extended state configured for inserting the cellulose blank structure into the second mould part and ejecting the cellulose products from the forming mould. The movable element is in the retracted state arranged as a pressing surface cooperating with the surrounding pressing surface for forming the cellulose products.

IPC Classes  ?

  • B29C 33/44 - Moulds or coresDetails thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 5/02 - Hollow articles
  • B29C 33/42 - Moulds or coresDetails thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
  • B29C 37/00 - Component parts, details, accessories or auxiliary operations, not covered by group or
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/04 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles using movable moulds
  • B31B 50/88 - PrintingEmbossing
  • B27N 3/02 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
  • B27N 3/14 - Distributing or orienting the particles or fibres
  • B27N 5/00 - Manufacture of non-flat articles
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/50 - Removing moulded articles

39.

DEFORMATION ELEMENT, FORMING MOULD COMPRISING A DEFORMATION ELEMENT AND METHOD FOR FORMING CELLULOSE PRODUCTS

      
Application Number EP2023065268
Publication Number 2023/242032
Status In Force
Filing Date 2023-06-07
Publication Date 2023-12-21
Owner PULPAC AB (Sweden)
Inventor
  • Ljungberg, Martin
  • Högblom, Olle
  • Arlerot, Björn
  • Bergfjord, Mathias
  • Sjöstrand Jonsson, Felix
  • Ekstrand, Niklas

Abstract

A deformation element for forming three-dimensional cellulose products from an air-formed cellulose blank structure in a forming mould. The deformation element comprises an ejection element arranged for ejecting the cellulose products from the deformation element after forming of the cellulose products in the forming mould. The ejection element is arranged as a protruding body extending in a pressing direction of the deformation element relative to a surrounding surface of the deformation element in a non-compressed state. The ejection element is configured for separating the formed cellulose products from the deformation element upon expansion of the deformation element and/or the ejection element from a compressed state to the non-compressed state after the forming of the cellulose products in the forming mould.

IPC Classes  ?

  • B29C 33/46 - Moulds or coresDetails thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles using fluid pressure
  • B27N 5/00 - Manufacture of non-flat articles
  • B29C 33/76 - Cores
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/04 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles using movable moulds
  • B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
  • B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
  • B29C 51/08 - Deep-drawing or matched-mould forming, i.e. using mechanical means only
  • B29C 51/20 - Thermoforming apparatus having movable moulds or mould parts
  • B31B 50/59 - Shaping sheet material under pressure
  • D04H 1/26 - Wood pulp

40.

EJECTION ELEMENT, FORMING MOULD COMPRISING AN EJECTION ELEMENT AND METHOD FOR FORMING CELLULOSE PRODUCTS

      
Application Number EP2023066248
Publication Number 2023/242402
Status In Force
Filing Date 2023-06-16
Publication Date 2023-12-21
Owner PULPAC AB (Sweden)
Inventor
  • Ljungberg, Martin
  • Högblom, Olle
  • Arlerot, Björn
  • Bergfjord, Mathias
  • Sjöstrand Jonsson, Felix
  • Ekstrand, Nils

Abstract

An ejection element attached to a forming mould for forming three-dimensional cellulose products from an air-formed cellulose blank structure. The ejection element is arranged for ejecting the cellulose products and/or residual parts of the cellulose blank structure from the forming mould after forming of the cellulose products in the forming mould. The ejection element is arranged as a resilient protruding body extending in a pressing direction of the forming mould relative to a surrounding surface of the forming mould in a non-compressed state. The ejection element is configured for separating the formed cellulose products and/or the residual parts of the cellulose blank structure from the forming mould upon expansion of the ejection element from a compressed state to the non-compressed state after the forming of the cellulose products in the forming mould.

IPC Classes  ?

  • B29C 33/44 - Moulds or coresDetails thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
  • B29C 33/42 - Moulds or coresDetails thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/04 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles using movable moulds
  • B31B 50/88 - PrintingEmbossing
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 5/02 - Hollow articles
  • B29C 43/50 - Removing moulded articles
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 37/00 - Component parts, details, accessories or auxiliary operations, not covered by group or
  • B27N 3/02 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
  • B27N 3/14 - Distributing or orienting the particles or fibres
  • B27N 5/00 - Manufacture of non-flat articles

41.

A METHOD FOR FORMING A CELLULOSE PRODUCT IN A DRY-FORMING MOULD SYSTEM

      
Application Number EP2023055871
Publication Number 2023/194027
Status In Force
Filing Date 2023-03-08
Publication Date 2023-10-12
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Ekwall, Peter

Abstract

A method for dry-forming a cellulose product in a dry-forming mould system from an air-formed cellulose blank structure. The dry-forming mould system comprises a forming mould having a first mould part and an opposing second mould part arranged to cooperate with each other in a pressing direction upon forming of the cellulose product. The method comprises the steps: providing the air-formed cellulose blank structure and arranging the cellulose blank structure in the forming mould between the first mould part and the second mould part, wherein the cellulose blank structure has a moisture content in the range of 4-15 wt%, preferably in the range of 6-10 wt%, when arranged between the first mould part and the second mould part; forming the cellulose product by pressing and heating the cellulose blank structure when arranged between the first mould part and the second mould part in a single pressing operation, wherein in the single pressing operation the cellulose blank structure is pressed with a forming pressure in the range of 1-100 MPa, preferably in the range of 8-20 MPa, and heated to a forming temperature in the range of 100-200 °C, preferably in the range of 120-170 °C.

IPC Classes  ?

  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 5/02 - Hollow articles
  • B27N 3/00 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres
  • B27N 3/14 - Distributing or orienting the particles or fibres
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B29C 33/40 - Plastics, e.g. foam or rubber
  • B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
  • D04H 1/732 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay

42.

A DRY-FORMING MOULD SYSTEM AND A METHOD FOR MANUFACTURING A CELLULOSE PRODUCT IN A DRY-FORMING MOULD SYSTEM

      
Application Number EP2023055995
Publication Number 2023/194032
Status In Force
Filing Date 2023-03-09
Publication Date 2023-10-12
Owner PULPAC AB (Sweden)
Inventor
  • Högblom, Olle
  • Bergfjord, Mathias
  • Ekstrand, Niklas
  • Sjöstrand Jonsson, Felix
  • Arlerot, Björn

Abstract

A dry-forming mould system and method for dry-forming a cellulose product from an air-formed cellulose blank structure. The dry-forming mould system comprises a first mould part and an opposing second mould part configured for cooperating with each other in a pressing direction upon forming of the cellulose product. The first mould part and the second mould part are configured for being pressed together in the pressing direction in a first pressing stroke to apply a forming pressure onto the cellulose blank structure. A flexible cutting element with a cutting edge configured for operating in the pressing direction is releasably attached to the first mould part, and the second mould part comprises an anvil plate arranged to cooperate with the cutting edge of the flexible cutting element. The flexible cutting element is configured for cutting out the cellulose product from the cellulose blank structure by pressing the cutting edge towards and in contact with the anvil plate with a predetermined cutting force, simultaneously with the first pressing stroke or in a second pressing stroke in the pressing direction after start of the first pressing stroke.

IPC Classes  ?

  • B27N 3/14 - Distributing or orienting the particles or fibres
  • B29C 43/40 - Moulds for making articles of definite length, i.e. discrete articles with means for cutting the article
  • B30B 9/28 - Presses specially adapted for particular purposes for forming shaped articles
  • B31B 50/20 - Cutting sheets or blanks
  • B26D 7/26 - Means for mounting or adjusting the cutting memberMeans for adjusting the stroke of the cutting member
  • B26F 1/44 - Cutters thereforDies therefor
  • B27N 5/00 - Manufacture of non-flat articles
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/02 - Hollow articles
  • B29C 33/12 - Moulds or coresDetails thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
  • B29C 39/30 - Moulds or cores with means for cutting the article
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles

43.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number EP2022086132
Publication Number 2023/117682
Status In Force
Filing Date 2022-12-15
Publication Date 2023-06-29
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Ljungberg, Martin
  • Guidotti, Edward
  • Arlerot, Björn
  • Högblom, Olle
  • Larsson, Patrik

Abstract

A method for producing a cellulose product (101) from an air-formed cellulose blank structure (102), wherein the method comprises the steps; providing a cellulose-based material (106) to a mill (104), milling the cellulose-based material (106); providing an air-formed cellulose blank structure (102), wherein the cellulose blank structure (102) is air-formed from cellulose fibres.

IPC Classes  ?

  • B30B 1/10 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
  • B30B 1/16 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism operated by fluid-pressure means
  • B30B 15/30 - Feeding material to presses
  • B27N 1/00 - Pretreatment of moulding material
  • B27N 3/14 - Distributing or orienting the particles or fibres
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 7/00 - After-treatment, e.g. reducing swelling or shrinkage, surfacingProtecting the edges of boards against access of humidity
  • B31B 50/59 - Shaping sheet material under pressure

44.

A PRESSING MODULE FOR FORMING CELLULOSE PRODUCTS AND A METHOD FOR FORMING CELLULOSE PRODUCTS

      
Application Number EP2022082345
Publication Number 2023/110282
Status In Force
Filing Date 2022-11-17
Publication Date 2023-06-22
Owner PULPAC AB (Sweden)
Inventor
  • Litten, Neil Anthony
  • Mordue, Adrian
  • Bergfjord, Mattias

Abstract

PLOLOLAFSPSP) upon forming of the cellulose products (1) in the forming mould (3).

IPC Classes  ?

  • B31B 50/59 - Shaping sheet material under pressure
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating

45.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number EP2022082391
Publication Number 2023/094272
Status In Force
Filing Date 2022-11-18
Publication Date 2023-06-01
Owner PULPAC AB (Sweden)
Inventor
  • Högblom, Olle
  • Westerberg, Niklas Olov

Abstract

A method for producing a cellulose product (1) from an air-formed cellulose blank structure (2), wherein the method comprises the steps; providing a cellulose based material (6) to a first mill (4), providing a barrier chemistry composition (3) to the cellulose based material (6) before the first mill; milling the cellulose based material (6) and the barrier chemistry additive (3); providing an air-formed cellulose blank structure (2), wherein the cellulose blank structure (2) is air-formed from cellulose fibres.

IPC Classes  ?

  • D21J 5/00 - Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch moulds
  • B27N 1/02 - Mixing the material with binding agent
  • B29C 51/20 - Thermoforming apparatus having movable moulds or mould parts

46.

A METHOD FOR MANUFACTURING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number EP2022080354
Publication Number 2023/078834
Status In Force
Filing Date 2022-10-31
Publication Date 2023-05-11
Owner PULPAC AB (Sweden)
Inventor Larsson, Ove

Abstract

A cellulose product comprising a non-flat cellulose product structure, a protective inner layer, and a protective outer layer. The cellulose product structure comprises an interior surface, an exterior surface, and an edge structure arranged between the interior surface and the exterior surface. The protective inner layer is applied to the interior surface, and the protective outer layer is arranged in connection to the exterior surface of the cellulose product structure. The protective inner layer and the protective outer layer are forming an integrated structure that is fully enclosing the cellulose product structure, and a sealed outer volume is formed by the protective inner layer and the protective outer layer.

IPC Classes  ?

  • B27N 1/00 - Pretreatment of moulding material
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 3/22 - Charging or discharging
  • B27N 5/02 - Hollow articles
  • B27N 7/00 - After-treatment, e.g. reducing swelling or shrinkage, surfacingProtecting the edges of boards against access of humidity
  • B65D 25/14 - Linings or internal coatings
  • B65D 25/36 - Coverings or external coatings formed by applying sheet material
  • D21J 3/10 - Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds of hollow bodies
  • D21J 7/00 - Manufacture of hollow articles from fibre suspensions or papier-mâché by deposition of fibres in or on a wire-net mould
  • B31B 50/59 - Shaping sheet material under pressure
  • B31D 5/00 - Multiple-step processes for making three-dimensional articles
  • B31D 5/02 - Multiple-step processes for making three-dimensional articles including pressing
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating
  • B29C 70/70 - Completely encapsulating inserts
  • B29C 70/86 - Incorporating in coherent impregnated reinforcing layers
  • B05D 7/22 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
  • D21J 5/00 - Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch moulds
  • B65D 77/20 - Container closures formed after filling by applying separate lids or covers
  • B27N 5/00 - Manufacture of non-flat articles

47.

A METHOD FOR DETECTING A LIQUID COMPOSITION APPLIED ONTO A CELLULOSE BLANK STRUCTURE WITH A DETECTION SYSTEM AND A DETECTION SYSTEM

      
Application Number EP2022065551
Publication Number 2022/258688
Status In Force
Filing Date 2022-06-08
Publication Date 2022-12-15
Owner PULPAC AB (Sweden)
Inventor Högblom, Olle

Abstract

A method for detecting a liquid composition applied onto a cellulose blank structure, with a detection system. The detection system is forming part of a cellulose product forming unit for forming cellulose products from the cellulose blank structure. The detection system comprises a detection unit connected to a control unit. The method comprises the steps: providing the cellulose blank structure and feeding the cellulose blank structure in a feeding direction, where the cellulose blank structure upon feeding is moving through an application area and a detection area, where the application area is arranged upstream the detection area; applying the liquid composition onto the cellulose blank structure in the application area; detecting the applied liquid composition in the detection area with the detection unit, where the detection by the detection unit is forming a detection result; analysing the detection result by the control unit, where the analysis of the detection result is forming an analysis result; initiatinga control action by the control unit upon detection of an analysis result deviating from a pre-determined analysis result.

IPC Classes  ?

48.

A CELLULOSE PRODUCT TOGGLE PRESSING MODULE AND METHOD FOR USING THE SAME

      
Application Number EP2021059810
Publication Number 2022/218530
Status In Force
Filing Date 2021-04-15
Publication Date 2022-10-20
Owner PULPAC AB (Sweden)
Inventor Larsson, Ove

Abstract

A cellulose product toggle pressing module (6) for forming non-flat cellulose products (1) from an air-formed cellulose blank structure (2). The toggle pressing module (6) comprises a toggle press (6a) including pressing member (6d) movably arranged in a pressing direction, a toggle-mechanism (6e) drivingly connected to the pressing member (6d), a pressing actuator arrangement (6f) drivingly connected to the toggle-mechanism (6e), and an electronic control system (6h) operatively connected to the pressing actuator arrangement (6f). The toggle pressing module (6) further comprises a forming mould (3) including a moveable first mould part (3a) attached to the pressing member (6d) and a second mould part (3b). The electronic control system (6h) is configured for controlling operation of pressing actuator arrangement (6f) for driving the pressing member (6d) using the toggle-mechanism (6e) in the pressing direction and forming the non-flat cellulose product from the air-formed cellulose blank structure by pressing the first mould part (3a) against the second mould part (3b). Furthermore, the toggle press (6a) is installed with, or arranged for being installed with, the pressing direction of the pressing member (6d) arranged primarily in a horizontal direction, specifically with the pressing direction of the pressing member (6d) arranged within 20 degrees from the horizontal direction, and more specifically with the pressing direction in parallel with the horizontal direction.

IPC Classes  ?

  • B30B 1/10 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
  • B30B 1/16 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism operated by fluid-pressure means

49.

A METHOD FOR MANUFACTURING CELLULOSE PRODUCTS AND A PRODUCT FORMING UNIT FOR MANUFACTURING CELLULOSE PRODUCTS

      
Application Number EP2021059811
Publication Number 2022/218531
Status In Force
Filing Date 2021-04-15
Publication Date 2022-10-20
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Högblom, Olle
  • Ljungberg, Martin

Abstract

A method for manufacturing non-flat cellulose products from an air-formed cellulose blank structure in a product forming unit. The product forming unit comprises a buffering module and a pressing module comprising one or more forming moulds. The method comprises the steps: providing the cellulose blank structure and feeding the cellulose blank structure to the buffering module; buffering the cellulose blank structure in the buffering module, and feeding the cellulose blank structure from the buffering module to the pressing module; forming cellulose products from the cellulose blank structure in the one or more forming moulds by heating the cellulose blank structure to a forming temperature, and pressing the cellulose blank structure with a forming pressure. The cellulose blank structure is continuously fed to the buffering module in a first feeding direction, and intermittently fed from the buffering module in a second feeding direction, wherein the second feeding direction differs from the first feeding direction.

IPC Classes  ?

  • B27N 5/00 - Manufacture of non-flat articles
  • B27N 5/02 - Hollow articles
  • D21J 5/00 - Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch moulds

50.

A CELLULOSE PRODUCT TOGGLE PRESSING MODULE AND METHOD FOR USING THE SAME

      
Application Number EP2022059510
Publication Number 2022/218872
Status In Force
Filing Date 2022-04-08
Publication Date 2022-10-20
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Högblom, Olle
  • Ljungberg, Martin
  • Guidotti, Edward
  • Arlerot, Björn
  • Larsson, Patrik

Abstract

A product forming unit (U) for manufacturing non-flat cellulose products (1) from an air-formed cellulose blank structure (2). The product forming unit (U) comprises a blank dry-forming module (4) with a moveable forming wire (4c), a toggle pressing module (6) with a toggle press (6a) and a forming mould (3), and an electronic control system (6h) operatively connected to the forming wire (4c) and the toggle press (6a). The blank dry-forming module (4) is configured for air-forming the cellulose blank structure (2) onto the forming wire (4c). The toggle press (6a) includes a pressing member (6d) movably arranged in a pressing direction, a toggle-mechanism (6e) drivingly connected to the pressing member (6d), a pressing actuator arrangement (6f) drivingly connected to the toggle-mechanism (6e). The forming mould (3) includes a moveable first mould part (3a) attached to the pressing member (6d) and a second mould part (3b). The electronic control system (6h) is configured for controlling operation of the pressing actuator arrangement (6f) for performing pressing operations, which involves driving the pressing member (6d) in the pressing direction by means of the toggle-mechanism (6e), and thereby forming the non-flat cellulose product from the air-formed cellulose blank structure by pressing the first mould part (3a) against the second mould part (3b). The electronic control system (6h) further is configured for intermittently feeding the forming wire (4c) between subsequent pressing operations.

IPC Classes  ?

  • B30B 11/00 - Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses or tabletting presses
  • B30B 1/16 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism operated by fluid-pressure means
  • B27N 5/00 - Manufacture of non-flat articles
  • B30B 15/30 - Feeding material to presses

51.

METHOD FOR DRY-FORMING CELLULOSE PRODUCTS FROM A CELLULOSE BLANK STRUCTURE IN A PRODUCT FORMING UNIT AND A PRODUCT FORMING UNIT

      
Application Number EP2022059512
Publication Number 2022/218873
Status In Force
Filing Date 2022-04-08
Publication Date 2022-10-20
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Högblom, Olle
  • Ljungberg, Martin
  • Guidotti, Edward
  • Arlerot, Björn
  • Larsson, Patrik

Abstract

Method for dry-forming cellulose products (1) from a cellulose blank structure (2) in a product forming unit. The product forming unit comprises a blank dry-forming module (4) and a pressing module (6). The cellulose blank structure (2) is air-formed in the blank dry-forming module (4) onto a forming wire (4c). The pressing module (6) comprises one or more forming moulds (3) for forming the cellulose products (1) from the cellulose blank structure in a pressing operation. The method comprises the step: arranging the forming wire in a stationary mode during the pressing operation.

IPC Classes  ?

  • B30B 1/10 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
  • B30B 1/16 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism operated by fluid-pressure means
  • B31B 50/59 - Shaping sheet material under pressure
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating

52.

A METHOD FOR FORMING CELLULOSE PRODUCTS IN A FORMING MOULD SYSTEM FROM A CELLULOSE BLANK STRUCTURE, A FORMING MOULD SYSTEM, AND A CELLULOSE BLANK STRUCTURE

      
Application Number EP2022050164
Publication Number 2022/152609
Status In Force
Filing Date 2022-01-05
Publication Date 2022-07-21
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Guidotti, Edward
  • Högblom, Olle

Abstract

A method for forming cellulose products in a forming mould system from an air-formed cellulose blank structure (2), where the forming mould system comprises one or more forming moulds(3). Each forming mould comprises a first mould part (3a) and a second mould part (3b) configured for cooperating with each other during the forming of the cellulose products. The method comprises the steps: providing the cellulose blank structure, and in the cellulose blank structure defining one or more product sections (2a) and a residual section (2b) surrounding or arranged in connection to the one or more product sections; compressing at least a portion of the residual section to a first degree of compression higher than a degree of compression of the one or more product sections; feeding the cellulose blank structure in a feeding direction to a forming position in the forming mould system, where in the forming position each product section is arranged between a corresponding first mould part and second mould part; forming the cellulose products from the cellulose blank structure between the first mould part and the second mould part by heating the cellulose blank structure to a forming temperature in the range of 100-300 °C; and pressing the cellulose blank structure with a forming pressure in the range of 1-100 MPa, preferably 4-20 MPa.

IPC Classes  ?

  • D21J 5/00 - Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch moulds
  • B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor

53.

A METHOD FOR EDGE-FORMING CELLULOSE PRODUCTS IN A FORMING MOULD SYSTEM, AND A FORMING MOULD SYSTEM FOR FORMING EDGES OF CELLULOSE PRODUCTS

      
Application Number EP2021078164
Publication Number 2022/089934
Status In Force
Filing Date 2021-10-12
Publication Date 2022-05-05
Owner PULPAC AB (Sweden)
Inventor
  • Ljungberg, Martin
  • Bergfjord, Mathias

Abstract

A method for edge-forming cellulose products in a forming mould system, and a forming mould system (S), where the forming mould system is adapted for forming the cellulose products from an air- formed cellulose blank structure (2). The forming mould system comprises a first mould part (3) and a second mould part (4) arranged for cooperating with each other. The first mould part comprises an edge-forming device (5) with a protruding element (5a) configured for compacting and separating fibres of the cellulose blank structure. The edge-forming device is movably arranged in relation to a base structure (3a) of the first mould part, and the edge-forming device is adapted for interacting with a pressure member (6) arranged in the base structure. The method comprises the steps: providing the air- formed cellulose blank structure, and arranging the cellulose blank structure between the first mould part and the second mould part; forming a compacted edge structure of the cellulose products by separating fibres of the cellulose blank structure with the protruding element, applying an edge-forming temperature onto the cellulose blank structure, and compacting the cellulose blank structure by applying an edge-forming pressure by means of the pressure member onto the cellulose blank structure between the protruding element and the second mould part.

IPC Classes  ?

  • D21J 1/02 - Cutting, e.g. using wet saws
  • D21J 1/04 - Pressing
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating

54.

A MULTI-CAVITY FORMING MOULD SYSTEM AND A METHOD FOR FORMING CELLULOSE PRODUCTS IN A MULTI-CAVITY FORMING MOULD SYSTEM

      
Application Number EP2021073177
Publication Number 2022/043225
Status In Force
Filing Date 2021-08-20
Publication Date 2022-03-03
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Högblom, Olle

Abstract

A multi-cavity forming mould system for forming a plurality of discrete three-dimensional cellulose products from an air-formed cellulose blank structure, where the forming mould system comprises a first mould part and a second mould part arranged for cooperating with each other during forming of the cellulose products. The first mould part comprises a plurality of first forming elements and the second mould part comprises a plurality of corresponding second forming elements, which are movably arranged in relation to a base structure. The system forming a plurality of cavities for the blank between each first forming element and corresponding second forming element during forming of the products. Each second forming element is arranged for interacting with a pressure member arranged in the base structure, where the pressure member establishes a pressure in each cavity onto the cellulose blank during forming of the products.

IPC Classes  ?

  • B29C 33/00 - Moulds or coresDetails thereof or accessories therefor
  • B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B27N 5/00 - Manufacture of non-flat articles
  • B29C 51/08 - Deep-drawing or matched-mould forming, i.e. using mechanical means only
  • B29C 43/32 - Component parts, details or accessoriesAuxiliary operations
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/40 - Moulds for making articles of definite length, i.e. discrete articles with means for cutting the article
  • B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
  • B29C 51/32 - Moulds having cutting means
  • B29L 31/28 - Tools, e.g. cutlery
  • B29L 31/56 - Stoppers or lids for bottles, jars, or the like
  • B29L 31/00 - Other particular articles
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material

55.

A FORMING MOULD SYSTEM AND A METHOD FOR FORMING A CELLULOSE PRODUCT IN A FORMING MOULD SYSTEM

      
Application Number EP2021052361
Publication Number 2021/156222
Status In Force
Filing Date 2021-02-02
Publication Date 2021-08-12
Owner PULPAC AB (Sweden)
Inventor
  • Ljungberg, Martin
  • Arlerot, Björn

Abstract

A forming mould system (3) for forming a cellulose product (1) from an air-formed cellulose blank structure (2), where the forming mould system (3) comprises a first mould part (4a) and a second mould part (4b). The first mould part (4a) and the second mould part (4b) are configured for moving in relation to each other in a pressing direction (DP). The second mould part (4b) comprises a forming cavity section (5) and an inlet section (6), where the inlet section (6) is arranged in connection to the forming cavity section (5) and configured for facilitating displacement of the cellulose blank structure (2) into a forming cavity (5a) of the forming cavity section (5). The inlet section (6) comprises a transition surface (6a) defining an inlet opening (6b), and the inlet opening (6b) is having a tapered configuration towards the forming cavity (5a). The disclosure further relates to a method for forming a cellulose product (1) from an air-formed cellulose blank structure (2) in a forming mould system (3).

IPC Classes  ?

  • B31D 5/02 - Multiple-step processes for making three-dimensional articles including pressing

56.

A METHOD FOR PRODUCING CELLULOSE PRODUCTS AND A ROTARY FORMING MOULD SYSTEM

      
Application Number EP2020073910
Publication Number 2021/037946
Status In Force
Filing Date 2020-08-27
Publication Date 2021-03-04
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Linus, Larsson
  • Ekstrand, Niklas

Abstract

A method for forming cellulose products (1) from an air-formed cellulose blank structure (2) in a rotary forming mould system (3), wherein the rotary forming mould system (3) comprises a base structure (4) and one or more forming moulds (5) attached to the base structure (4), wherein the base structure (4) is arranged to rotate around a rotational axis (AR) extending in an axial direction (DA), wherein each forming mould (5) comprises a first mould part (5a) and a corresponding second mould part (5b), wherein during rotational movement of the base structure (4) around the rotational axis (AR) each first mould part (5a) is arranged to engage with its corresponding second mould part (5b) in a pressing direction (DP), wherein the method comprises the steps; providing the air-formed cellulose blank structure (2); arranging the cellulose blank structure (2) in a position between a first mould part (5a) and its corresponding second mould part (5b); forming the cellulose products (1) from the cellulose blank structure (2) in the rotary forming mould system (3), by applying a forming pressure (PF) on the cellulose blank structure (2) between the first mould part (5a) and its corresponding second mould part (5b) through an engaging movement of the first mould part (5a) in relation to its corresponding second mould part (5b) in the pressing direction (DP), wherein during forming the one or more forming moulds (5) are rotating with the base structure (4) around the rotational axis (AR).

IPC Classes  ?

  • B29C 43/08 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles using movable moulds continuously movable with circular movement
  • B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
  • B29L 31/00 - Other particular articles
  • B29L 31/56 - Stoppers or lids for bottles, jars, or the like
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • B29C 43/10 - Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
  • B29C 43/34 - Feeding the material to the mould or the compression means
  • B29C 43/40 - Moulds for making articles of definite length, i.e. discrete articles with means for cutting the article
  • B29C 33/40 - Plastics, e.g. foam or rubber

57.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number EP2020068039
Publication Number 2021/001276
Status In Force
Filing Date 2020-06-26
Publication Date 2021-01-07
Owner PULPAC AB (Sweden)
Inventor
  • Guidotti, Edward
  • Jabbari, Mostafa

Abstract

A1A2A1FFF) of at least 1 MPa, preferably 4-20 MPa.

IPC Classes  ?

  • D04H 1/26 - Wood pulp
  • B29C 51/20 - Thermoforming apparatus having movable moulds or mould parts
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating
  • D04H 1/425 - Cellulose series
  • D04H 1/732 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
  • D21H 17/17 - Ketenes, e.g. ketene dimers
  • D21H 19/00 - Coated paperCoating material
  • D21H 21/16 - Sizing or water-repelling agents
  • D21H 27/10 - Packing paper
  • D21H 27/42 - Multi-ply comprising dry-laid paper

58.

A METHOD FOR PRODUCING CELLULOSE PRODUCTS AND A ROTARY FORMING MOULD SYSTEM

      
Application Number EP2020063482
Publication Number 2020/229608
Status In Force
Filing Date 2020-05-14
Publication Date 2020-11-19
Owner PULPAC AB (Sweden)
Inventor
  • Högblom, Olle
  • Larsson, Ove
  • Larsson, Linus
  • Guidotti, Edward

Abstract

FR1R2R2).

IPC Classes  ?

  • D21F 9/00 - Complete machines for making continuous webs of paper
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
  • B29C 51/08 - Deep-drawing or matched-mould forming, i.e. using mechanical means only
  • B31B 50/59 - Shaping sheet material under pressure
  • D21J 5/00 - Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch moulds

59.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT

      
Application Number SE2019050357
Publication Number 2019/209160
Status In Force
Filing Date 2019-04-17
Publication Date 2019-10-31
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Linus
  • Larsson, Ove

Abstract

A method for producing a cellulose product from a multi-layer cellulose blank structure, wherein the method comprises the steps; forming the multi-layer cellulose blank structure from at least a first layer of dry-formed cellulose fibres and a second layer of a cellulose fibre web structure, through arranging the at least first layer and second layer in a superimposed relationship to each other and in the superimposed relationship arranging the at least first layer and second layer in contact with each other; arranging the multi-layer cellulose blank structure in a forming mould; heating the multi-layer cellulose blank structure to a forming temperature in the range of 100°C to 300°C, and forming the cellulose product from the multi-layer cellulose blank structure in the forming mould, by pressing the heated multi-layer cellulose blank structure with an isostatic forming pressure of at least 1 MPa, preferably 4-20 MPa, wherein the multi-layer cellulose blank structure is shaped into a two- dimensional or three-dimensional fibre composite structure having a single- layer configuration.

IPC Classes  ?

  • B29C 43/20 - Making multilayered or multicoloured articles
  • B29C 51/08 - Deep-drawing or matched-mould forming, i.e. using mechanical means only
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating
  • B65B 43/08 - Forming three-dimensional containers from sheet material
  • D21H 27/30 - Multi-ply

60.

METHOD FOR MANUFACTURING A CELLULOSE PRODUCT BY A PRESSURE MOULDING APPARATUS, PRESSURE MOULDING APPARATUS AND CELLULOSE PRODUCT

      
Application Number SE2017050254
Publication Number 2017/160217
Status In Force
Filing Date 2017-03-16
Publication Date 2017-09-21
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Larsson, Linus

Abstract

The present invention relates to a method of manufacturing a cellulose product having a flat or non-flat product shape by a pressure moulding apparatus comprising a forming mould. The forming mould has a forming surface defining said product shape, The method comprises the steps of: arranging a cellulose blank containing less than 45 weight percent water in said forming mould;heating said cellulose blank to a forming temperature in the range of 100°C to 200°C; and pressing said cellulose blank by means of said forming mould with a forming pressure acting on the cellulose blank across said forming surface, said forming pressure being in the range of MPa to 100 MPa.

IPC Classes  ?

  • B65B 43/08 - Forming three-dimensional containers from sheet material
  • B29C 51/28 - Component parts, details or accessoriesAuxiliary operations for applying pressure through the wall of an inflated bag or diaphragm
  • B29C 51/42 - Heating or cooling
  • B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding

61.

METHOD FOR MANUFACTURING A CELLULOSE PRODUCT, CELLULOSE PRODUCT FORMING APPARATUS AND CELLULOSE PRODUCT

      
Application Number SE2017050255
Publication Number 2017/160218
Status In Force
Filing Date 2017-03-16
Publication Date 2017-09-21
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Larsson, Linus

Abstract

A method for manufacturing a cellulose product, comprising the steps: dry forming a cellulose blank in a dry forming unit; arranging the cellulose blank in a forming mould; heating the cellulose blank to a forming temperature in the range of 100°C to 200°C; and pressing the cellulose blank in the forming mould with a forming pressure of at least 1 MPa.

IPC Classes  ?

  • B65B 43/08 - Forming three-dimensional containers from sheet material
  • B29C 51/42 - Heating or cooling
  • B31B 50/59 - Shaping sheet material under pressure