Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1978-11-20
1981-03-03
Herbert, Jr., Thomas J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
206158, 206160, 206627, 428205, 428215, 428507, 428512, 428513, B32B 300, B32B 2308
Patent
active
042541735
ABSTRACT:
A secondary container packaging material for use in six pack can wraps, six pack bottle carriers, twelve pack carriers, etc., comprising a composite of a paper material laminated to a plastic film. The plastic film provides tear resistance to the composite, so that paper material may be used which has a tear resistance less than that of other secondary packaging paper materials. The reduced tear resistance allows the use of paper having a lower caliper, basis weight, and, therefore, cost than conventional secondary container packaging material. Natural kraft paper and recycled paper of 12-16 point caliper are preferred for use with the present composite. The plastic film may be 0.25-2 mils thick and is preferably formed of polyethylene terpthalate, polyethylene, polyvinylchloride, polypropylene, or cellophane. The preferred films are transparent and permit reverse printing on their inner surface to provide abrasion resistant decoration visible through the film. Adhesives are used to bond the film to the paper and are selected to be compatible with the film used. The film may be metallized to produce a foil effect or may be strengthened by radiation treatment.
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patent: 4105820 (1978-08-01), Antoni
Coors Container Company
Herbert, Jr. Thomas J.
Klaas Bruce G.
Law Richard D.
Shelton Dennis K.
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