Packaging material for photosensitive materials

Details Packaging material for photosensitive materials Packaging material for photosensitive materials

1989-12-04

1991-06-11

Buffalow, Edith

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428216, 428461, 428 358, B29D 2200

Patent

active

050231200

ABSTRACT:
A packaging material which comprises an aluminum foil or an aluminum-metallized biaxially stretched thermoplastic resin film and a polyolefin resin film having an elongation at rupture (JIS P 8113) in either of longitudinal or lateral direction of more than 1.5 times of that of the aluminum foil or the aluminum-metallized film laminated thereto through a modified polyolefin resin adhesive layer containing an adhesive polyolefin resin which is a graft modified polyolefin resin. The packaging material of the invention can be torn easily by hand, and therefore, taking out work is carried out safely and rapidly even in a dark room. Nevertheless, the physical strength and tear strength are great and, light-shielding can be secured safely. Such a packaging material can be manufactured inexpensively.

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