Seal stock laminate

• Main Authors: O'BRIEN DAVID JOHN, SACHS VICTOR, THORNHILL CRAIG WARREN, MCLEAN ANDREW FENWICK
• Format: Patent
• Language: Chinese; English
• Published: 24.10.2012
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; DYES; HANDLING THIN OR FILAMENTARY MATERIAL; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PACKAGES; PACKAGING ELEMENTS; PACKING; PAINTS; PERFORMING OPERATIONS; POLISHES; STORING; TRANSPORTING; USE OF MATERIALS AS ADHESIVES

A method for producing a primary laminate (1b) including a tabstock the steps of; feeding a seat laminate (1) comprising bottom food contact layers including a foil layer (4) and a top polyester layer (5) to a laminating station wherein either the foil layer (4) of the underside of the polyester layer (5) has been printed; simultaneously feeding a tabstock (6) , which is narrower than the seal laminate (1) , to the laminating station such that the bottom of the tabstock and the top polyester layer of the seal laminate come into contact to form a primary substrate (1a) , the top face of which is partly comprised of the top face of the tabstock (6) and partly comprised of the top polyester layer (5) of the heat sealable laminate, prior to reaching the laminating station; simultaneously feeding a plastic film stock (8) which has top and bottom surfaces to the laminating station; and continuously extruding a polymeric adhesive (7) between the top face of the primary substrate (1a) and bottom surface of the plasti