CHUB PACKAGING WEBS WITH ENHANCED PUNCTURE RESISTANCE

摘要

The present disclosure is concerned with chub packaging webs with improved puncture resistance suitable for use in chub packaging. The webs have a double waii partially laminated structure. The structure is conveniently formed by adhesively laminating two component films in a face to face configuration using a pattern of adhesive which leaves a substantial portion of the two facing surfaces unlaminated. Preferably, each of the component films comprise at least one layer of nylon and has a moisture content of greater than 1% by weight such that the double wall partially laminated web has a total energy impact absorption value of greater 0.59 foot-pound at −20° C. measured in accordance with ASTM D-test method.

主权项

1. A chub packaging web formed from a double wall partially laminated web with enhanced puncture resistance comprising two independently manufactured thermoplastic films being partially laminated to each other such that:
a. a substantial portion of the surfaces of the two independently manufactured films facing each other are un-laminated; b. the unlaminated surface of one of the two independently manufactured films is heat sealable; c. each of the two independently manufactured films comprise at least one layer of nylon; d. the double wall partially laminated web has a moisture content of greater than 1% by weight; and e. wherein the double wall partially laminated web has a total energy impact absorption value of greater than 0.59 foot-pound at −20° C. as measured in accordance with ASTM D-7192 test method.