Abstract

The invention relates to an acrylate-based UV-curable ink, in particular ink jet ink, having a content of pigments, radical photoinitiators, dispersing agent(s)and optionally additional additives, characterized in that said ink contains at least two radical photoinitiators of the Norrish type I and at least one radically curable monomer in the form of a polyfunctional alkoxylated and/or polyalkoxylated acrylate monomer, which comprises one or more diacrylates and/or triacrylates, wherein the mol ratio of all acrylates to all initiators is approximately 5:1 to 19:1. The invention further relates to a method for producing a UV-curable ink, in particular an ink jet ink of the aforementioned type, wherein 1) a ground product or an ink base is produced by grinding one or more radically curable monomers in the form of a polyfunctional alkoxylated and/or polyalkoxylated acryl monomer, which comprise one or more diacrylate(s) and/or triacrylate(s), with one or more pigments and dispersing agents, in particular optionally additionally with synergists, stabilizers and further additives, in a high-performance mill, in particular in a pearl mill, until a constant viscosity and/or constant particle size develops, and 2) the resulting ground product is mixed with further acrylate monomers and the radical photoinitiators in the form of the Norrish type I, and optionally other additives. Said ground product exhibits advantageous physical properties at elevated temperatures and in long-term storage.

IPC Classes  ?

• G03F 7/031 - Organic compounds not covered by group
• C08B 37/00 - Preparation of polysaccharides not provided for in groups Derivatives thereof
• C08F 2/50 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
• C08F 2/46 - Polymerisation initiated by wave energy or particle radiation
• B29C 71/04 - After-treatment of articles without altering their shapeApparatus therefor by wave energy or particle radiation
• A61L 2/08 - Radiation
• A61L 24/00 - Surgical adhesives or cementsAdhesives for colostomy devices
• C09D 11/30 - Inkjet printing inks
• C09D 11/101 - Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
• C09D 11/322 - Pigment inks

Abstract

The invention relates to a contact device (400), which can be attached between a printing device (300) and a printing material container (100). The printing material container has contact elements (120) on the cartridge side for contacting the contact device, and the printing device has contact elements (310) on the printer side for contacting the printing material container. The contact device has cartridge-contacting contacts facing the printing material container for establishing a connection to the contact elements on the cartridge side and printer-contacting contacts facing the printing device for establishing a connection to the contact elements on the printer side.

IPC Classes  ?

• B41J 2/175 - Ink supply systems

Abstract

The invention relates to an acrylate-based UV-curable ink, in particular ink jet ink, having a content of pigments, radical photoinitiators, dispersing agent(s) and optionally additional additives, characterized in that said ink contains at least two radical photoinitiators of the Norrish type I and at least one radically curable monomer in the form of a polyfunctional alkoxylated and/or polyalkoxylated acrylate monomer, which comprises one or more diacrylates and/or triacrylates, wherein the mol ratio of all acrylates to all initiators is approximately 5:1 to 19:1. The invention further relates to a method for producing a UV-curable ink, in particular an ink jet ink of the aforementioned type, wherein 1) a ground product or an ink base is produced by grinding one or more radically curable monomers in the form of a polyfunctional alkoxylated and/or polyalkoxylated acryl monomer, which comprise one or more diacrylate(s) and/or triacrylate(s), with one or more pigments and dispersing agents, in particular optionally additionally with synergists, stabilizers and further additives, in a high-performance mill, in particular in a pearl mill, until a constant viscosity and/or constant particle size develops, and 2) the resulting ground product is mixed with further acrylate monomers and the radical photoinitiators in the form of the Norrish type I, and optionally other additives. Said ground product exhibits advantageous physical properties at elevated temperatures and in long-term storage.

IPC Classes  ?

• C09D 11/10 - Printing inks based on artificial resins

Abstract

The invention relates to an ink cartridge (10) for ink jet printers, comprising fill level identification means arranged on a lateral surface (11, 14, 15, 16), in particular on the front or face (11) in the installation direction (19), which in the mounted state on the printer are effective between a light transmitter (31) and a light receiver (32), wherein the fill level identification means comprise: - a first light beam deflection surface (light beam entry surface 30) arranged outside of the cartridge (10) and facing the light transmitter (31), - a deflection surface (21) that can be wetted with or dewetted of ink (34) depending on the fill level inside the cartridge (10), and a second beam deflection surface (light beam exit surface 35) arranged outside of the cartridge (10) and facing the light receiver, wherein the first and second light beam deflection surfaces or light beam entry surfaces (30) and light beam exit surfaces (35) are combined into one common component with the deflection surface (21) that can be wetted with ink (34) or dewetted of ink (34). Said component is part of an extension (33) of the ink receiving chamber of the ink cartridge (10) protruding over a lateral surface (11, 14, 15) of the cartridge (10).

IPC Classes  ?

• B41J 2/175 - Ink supply systems
• G01F 23/292 - Light

Abstract

The invention relates to a container having printing medium for a printing machine, wherein the container comprises: - an interface having at least two contact points (10, 11) by means of which electrical signals can be exchanged with the printing machine, a state query signal being transmitted to the container by means of the interface for determining a container state, and a state indicator signal being transmitted back to the printing machine by means of the interface, and an equivalent circuit (4) as an equivalent for a piezoelectric sensor, the state query signal (4) being applied to the equivalent circuit (4), characterized in that the equivalent circuit (4) comprises a resonance circuit (12) that can be connected to the contact points (10, 11), that a circuit unit (9) and a switching unit (17) connected in series are present, wherein the circuit unit (9) and switching unit (17) are connected in parallel to the resonance circuit (12), and that the circuit unit (9) is made of at least one of the following circuits: design circuit (13) for generating a desired oscillations behavior; asymmetry circuit (14); storage effect circuit (15).

IPC Classes  ?

• B41J 2/175 - Ink supply systems

Abstract

Ink cartridge (10) for ink-jet printers having filling level identification means arranged on a side face (11, 14, 15), in particular on the front face (11) or face which is at the front in the installation direction (19), said filling level identification means being active in the state fitted to the printer between a light transmitting part and a light receiver part, wherein the filling level identification means comprise a first light beam deflection surface (30) which is arranged outside the cartridge (10) and faces the light transmitting part, a deflection prism (21), which can be wetted by ink or have ink removed from it as a function of the filling level, within the cartridge (10), and a second light beam deflection surface (30) which is arranged outside the cartridge (10) and faces the light receiver part. The first light beam deflection surface (30) is part of a first triangular prism (20) and the second light beam deflection surface (30) is part of a second triangular prism (22), and these can preferably be combined with the deflection prism (21) to form one physical unit.

IPC Classes  ?

• B41J 2/175 - Ink supply systems

Abstract

In order to be able to flexibly use a container (3) comprising a pressure medium in a pressure device (1), which queries a state of the container (3), a state indicator signal (ZAN) anticipated by the pressure device (1) is stored on a preliminary basis in a storage (9) and output to the latter following a query signal (ZAB) by the pressure device (1).

IPC Classes  ?

• B41J 2/175 - Ink supply systems

Abstract

The invention relates to ink jet ink, comprising approximately 5 to 9 wt.-% dye or approximately 2 to 5 wt.-% pigment as a coloring agent, approximately 23 to 27 wt.-% humectants in the form of glycerin and one or more glycols, wherein glycerin is no more than 11 wt.-% and no less then 3 wt.-%, approximately 0.1 to 0.5 wt.-% surfactants, approximately 0.25 to 2 wt.-% wetting agents and the remainder water and optionally further additives. Said ink jet ink dries quickly and does not exhibit any misalignment and no formation of satellites when printed. It has a sufficiently long shelf life.

IPC Classes  ?

• C09D 11/00 - Inks

Abstract

Disclosed is a device for refilling an ink cartridge (10) for an ink-jet printer, comprising an ink reservoir (14) that has absorbent material or a mechanism generating a vacuum. Said ink reservoir (14) can be brought in fluid contact with a connection element (16) via an opening (15) in the ink cartridge (10), said connection element (16) allowing ink to be transferred from a separate ink refill container (12) into the ink reservoir (14). The disclosed device is characterized by a receptacle (11) for the ink cartridge (10) that is to be refilled and for the ink refill container (12). The ink cartridge (10), the ink refill container (12), or both can be placed relative to one another inside the receptacle (11) in such a way that the connection element (16) can be brought in fluid contact with the ink reservoir (14) on or through the opening (15) in the ink cartridge (10).

IPC Classes  ?

• B41J 2/175 - Ink supply systems

Abstract

Die invention relates to an ink concentrate for the production of inkjet inks. In addition to the required dye, it also contains a high-boiling and a low-boiling solvent, a humectant, and a surfactant in predetermined weight percentage quantities. Upon application, said ink concentrate is diluted with water to the required concentration values of the constituents thereof. The diluted ink is then added to the respective application purpose, in particular filled into cartridges. Said ink concentrate is adjusted with regard to quality and quantity such that it results in an advantageous functional inkjet ink when diluted with water. The ink concentrate according to the invention is represented in two embodiments. In one embodiment, the pH value is set to at least about 8. It contains about 3 to 35% by weight of humectants. Another embodiment is not limited to a specific pH value. However, it requires a content of humectant having at least about 8% by weight. The advantage of both embodiments of the ink concentrate according to the invention is particularly that no large amounts of water must be transported to the production location of the ready-to-use inkjet ink. A ready-to-use inkjet ink is obtained upon dilution.

IPC Classes  ?

• C09D 11/00 - Inks

Abstract

The invention relates to a filling device for refilling an ink cartridge (13) for an ink-jet printer, comprising a printer head provided with nozzles, or ink outlets (16) that can be coupled to the ink supply of an ink-jet head. Either the nozzles of the printer head are directly connected by a fluidic connection or, in the event of an ink outlet (16) that can be coupled to the ink supply of an ink-jet head, said opening is fluidically connected, by means of a wick, to an ink storage element (17) arranged inside the ink cartridge and comprising a mechanism producing a low pressure or a material which is absorbent for example. Said filling device comprises a container (11) which is filled with ink and has an opening (18) containing a capillary element (wick 20) which is dipped into the ink (19) and can be brought into contact with the ink storage element (17) of the ink cartridge (13). The device for refilling an ink cartridge comprises an electronic information processing unit (47) which is used to interact with a memory chip (48) provided on the ink cartridge.

IPC Classes  ?

• B41J 2/175 - Ink supply systems

Abstract

The invention relates to a device for refilling an ink cartridge (10 or 13) for an ink-jet printer, comprising a printer head (16) provided with nozzles, or an ink outlet that can be coupled to the ink supply of an ink-jet head. Either the nozzles of the printer head are directly connected by a fluidic connection or, in the event of an ink outlet that can be coupled to the ink supply of an ink-jet head, said opening is fluidically connected, especially by means of a wick and/or a valve, to an ink storage element arranged inside the ink cartridge and comprising a mechanism producing a low pressure or a material which is absorbent for example. The device according to the invention comprises an ink container (11) filled with ink and having a aeration opening (29) and an ink outlet (18) through which an element that can be fluidically connected by the ink (19) extends and on which the ink cartridge (10 or 13) or the ink storage element thereof can be docked, producing a fluidic connection. Positioning and/or identifying elements (24, 25, 26) for the identification and exact positioning of at least one ink cartridge (10 or 13) to be filled, in relation to the ink outlet of the ink container (11), are associated with the ink outlet (18).

IPC Classes  ?

• B41J 2/175 - Ink supply systems

Abstract

The invention relates to a device for refilling an ink cartridge (10 or 13) for an ink-jet printer, comprising a printer head (16) provided with nozzles, or an ink outlet that can be coupled to the ink supply of an ink-jet head. Either the nozzles of the printer head are directly connected by a fluidic connection or, in the event of an ink outlet that can be coupled to the ink supply of an ink-jet head, said opening is fluidically connected, especially by means of a wick and/or a valve, to an ink storage element arranged inside the ink cartridge and comprising a mechanism producing a low pressure or a material which is absorbent for example. The device according to the invention comprises an ink container (11) filled with ink and having a aeration opening (29) and an ink outlet (18) through which an element that can be fluidically connected by the ink (19) extends and on which the ink cartridge (10 or 13) or the ink storage element thereof can be docked, producing a fluidic connection. The ink flow from the ink container (11) into the cartridge (10 or 13) to be filled is generated by means of an excess pressure.

IPC Classes  ?

• B41J 2/175 - Ink supply systems

Abstract

The invention relates to an ink cartridge for insertion into a cartridge receptacle of an inkjet printer, wherein said ink cartridge (10) has a circuit board element (40), which comprises a surrogate configuration (55), and which has a first subarea (41), which lies in a plane A, and a second subarea (42), which is oriented at an angle relative to said first subarea (41).

IPC Classes  ?

• B41J 2/175 - Ink supply systems

Abstract

The invention relates to an ink cartridge (10) with an ink reservoir which delimits a free ink volume (16) in a first compartment (17) and a capillary volume (15) in a second compartment (18), an ink outlet (21) being associated with the capillary volume and both compartments (17, 18) being connectible to the exterior via ventilation holes (23, 24) for use of the cartridge. Said ventilation holes are closed prior to use by means of a removable or peelable film (25). The ventilation holes (23, 24) are arranged relative each other in such a manner that it is always the compartment (18) delimiting the capillary volume (15) that is ventilated first when the remove film (25) is peeled off.

IPC Classes  ?

• B41J 2/175 - Ink supply systems

Abstract

The invention relates to an ink cartridge (10) with an ink reservoir which delimits a free ink volume (16) in a first compartment (17) and a capillary volume (15) in a second compartment (18), the compartments (17, 18) being fluidically interconnected and the compartment (18) delimiting the capillary volume (15) being associated with an ink outlet (21). The invention is characterized by a bubble generator in the form of a dip tube (29) that dips into the free ink volume (16) and that can be connected to the exterior, at least one opening (30) for the introduction of air bubbles being provided at the distal end thereof.

IPC Classes  ?

• B41J 2/175 - Ink supply systems

Abstract

An ink cartridge (10) having an ink reservoir, which delimits a free ink volume (16) in a first chamber (17) and a capillary volume (15) in a second chamber (18), wherein the two chambers (17, 18) can each be ventilated via an opening (23, 24) and are fluid-connected to one another via a passage (22), and wherein an ink outlet (21) is associated with the chamber (18) delimiting the capillary volume (15). Capillary-increasing means (32) are associated with the passage (22) between the two chambers (17, 18) on the side facing the capillary volume (15).

IPC Classes  ?

• B41J 2/175 - Ink supply systems

Abstract

Ink cartridge (10) for inkjet printers having a ventilation opening (17) between the ink storage space (20) and the surroundings (21), and having a valve (22) which is assigned to an ink outlet (11) and, when inserted into the printer, can be moved from a closed position into an open position and vice versa counter to the action of an elastic element (6). The valve (22) which is assigned to the ink outlet (11) is coupled in such a way to a valve (23) which is assigned to the ventilation opening (17) that, when inserted into the printer, the ink outlet (11) and the ventilation opening (17) are opened successively, or vice versa when the ink cartridge (10) is removed from the printer.

IPC Classes  ?

• B41J 2/175 - Ink supply systems

Abstract

Apparatus for refilling an ink cartridge (10 or 13) for an inkjet printer having a print head which comprises nozzles or having an ink outlet opening (16) which can be coupled to the ink supply of an inkjet head, wherein either the nozzles of the print head directly or, in the case of an ink outlet opening (16) which can be coupled to the ink supply of an inkjet head, said ink outlet opening (16) are or is fluidically connected via a wick to an ink storage element (17) which is arranged within the ink cartridge (10 or 13) and comprises, for example, absorbent. Said apparatus comprises a container (11) which is filled with ink and has an opening (18), in which a capillary element (wick 20) is situated which is dipped into the ink (19) and can be brought into contact with the ink storage element (17) of the ink cartridge (10 or 13).

IPC Classes  ?

• B41J 2/175 - Ink supply systems
• B43K 11/00 - Filling devices

Abstract

The invention relates to an ink cartridge (10) for introducing into a cartridge receiving element (12) of an ink-jet printer, said ink cartridge comprising: a housing (14); a connecting section (24) which is provided on the lower side (22) of the housing (14); and a locking catch (32) which is elastically pre-stressed in a locking position and is located at a distance from the outer side of a lateral wall (28) of the housing (14), adjacent to the lower side (22), and whereon an engaging edge (40) is formed. The ink cartridge (10) is supported beneath the locking catch (32) in such a way that a torque (M) holding the connecting section (24) against the supply connection (26) is exerted around said support region. The maximum height of a positioning bar (50) is measured in such a manner that the total thereof and the length of the housing (14) is greater than the light length of the cartridge receiving element (12) which produces axial tension.

IPC Classes  ?

• B41J 2/175 - Ink supply systems