Produits et services

Extruders being machines for extrusion of bi-axially oriented films

Produits et services

(1) Extruders for extrusion of bi-axially oriented films

Abrégé

Packaging containing a PVDC barrier layer is manufactured without any significant orientation, with the result that the PVDC barrier layer remains flexible at significantly greater thicknesses than when it is oriented. This increased thickness compensates for the reduced barrier properties resulting from less crystallinity of the PVDC, and hence multilayer plastic tubing can be manufactured in which PVDC is used as a barrier layer instead of aluminum.

Classes IPC  ?

• B32B 1/08 - Produits tubulaires
• B32B 27/08 - Produits stratifiés composés essentiellement de résine synthétique comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique d'une résine synthétique d'une sorte différente
• B65D 35/08 - Structure du corps en une seule pièce en plastique

Abrégé

Stretch film is treated by passing a web of tackifier-containing, unbloomed thin polymer film through a heater so that the web is heated to a temperature sufficient to cause tackifier bloom prior to the web reaching a next stage in an in-line process. Also, a pattern can be applied to a thin polymer film. An oriented web of thin polymer film is passed across at least one heated roller having the pattern engraved thereon to define face regions and relief regions collectively conforming to the pattern. As the web contacts each roller surface, portions of the web positioned over the relief regions receive less heat than portions of the web positioned over the face regions, thereby causing the respective portions of the web to undergo differential, heat-induced shrinkage which imparts the pattern to the thin polymer film.

Classes IPC  ?

• B29C 61/02 - Rétrécissement thermique
• B29D 7/01 - Pellicules ou feuilles
• B65H 37/00 - Appareils délivrant des articles ou des bandes, comportant des dispositifs pour exécuter des opérations auxiliaires particulières

Abrégé

Disclosed is a winder (20) having a drum (22) about which a web passes in use, a meshed sector traversing, reciprocable cutter (24) which severs the web (78) as it passes around the drum (22) into segments, a suction facility (38) which draws air through a suction portion of the drum such that when severed, the trailing web segment is carried by the suction portion to a release position, a core loader (28) which, for each segment receives a core (80) at a starting position whereat the core (80) is rotated by contact with said drum (22) and whereat the core (80) receives the leading edge of said trailing segment, without fold-over, from said drum (22) when the trailing segment reaches the take-up position, a guide (30) which receives the core after the segment has started to wind thereupon, and a transfer mechanism (32) which receives the core (80) from the guide (30) and supports same in driven contact with the drum (22) as the segment is wound thereon The drum (22) may be reversible with associated reversibility for the cutter means (24).

Classes IPC  ?

• B65H 18/08 - Mécanismes d'enroulage des bandes
• B65H 20/36 - Moyens pour faire avancer à volonté la bande longitudinalement dans un sens ou dans l'autre
• B65H 35/00 - Délivrance d'articles à partir de machines à découper ou à perforer linéairementAppareils délivrant des articles ou des bandes, comportant des dispositifs pour couper ou perforer linéairement, p. ex. distributeurs de bande adhésive
• B65H 37/02 - Appareils délivrant des articles ou des bandes, comportant des dispositifs pour exécuter des opérations auxiliaires particulières pour appliquer des adhésifs

Produits et services

Machinery for the plastic industry and the rubber industry.

Produits et services

Machines et équipements pour l'industrie du plastique et du caoutchouc.

Produits et services

(1) Extrusion dies for extruding plastic film in tubular form.

Produits et services

(1) Air rings, bubble stabilizing systems, bubble collapsing systems and sizing cages. (2) Secondary cooling systems. (3) Perforators. (4) Plastic film winders and slitters. (5) Tube making machines. (6) Dies, die carts, plastic extruders and screws, internal coolers and complete blown film extrusion lines. (7) Polymer feeders. (8) Unwinders. (9) Tarpaulin making machines and rotating towers. (10) Bag making machines. (11) Complete cast film extrusion lines. (12) Sealers, folders, gussetters and plastic film converting machinery. (13) Cooling stations, web handling rollers and plastics extruder screen changers.

Produits et services

air rings as used for cooling plastics during its manufacture by extrusion; bubble stabilizers, collapsers and sizers as used for platic tube manufacture by extrusion; secondary coolers for use in plastics film manufacture by extrusion; plastic film winders, slitters, perforators, cooling stations and web handling rollers as used for film and sheet handling; plastic tube making machines; dies and die carts as used for plastic extrusion; plastic extruders and screws therefor; internal coolers for extruded plastic film bubbles; complete blown film extrusion lines for use in plastics film manufacture; polymer feeders for plastics extruders; unwinders, sealers, folders and gusseters as used for film and sheet handling and bag making; tarpaulin making machines; rotating towers for gauge equalization in plastics film manufacture; plastic bag making machines; complete cast film extrusion lines for use in plastics film manufacture; plastic film converting machinery; and plastics extruder filter screen changers

Produits et services

(1) Bubble stabilizing systems, bubble collapsing systems and sizing cages. (2) Perforators. (3) Plastic film winders and slitters. (4) Tube making machines. (5) Polymer feeders. (6) Unwinders. (7) Tarpaulin making machines and rotating towers. (8) Bag making machines. (9) Complete cast film extrusion lines. (10) Sealers, folders, gusseters and plastic film converting machinery. (11) Dies, die carts, plastic extruders, complete brown film extrusion lines. (12) Web handling rollers and plastics extruder screen changers. (13) Secondary cooling systems. (14) Cooling stations. (15) Internal coolers. (16) Air rings. (17) Plastic screws.