Verpackungsmaterial für photoempfindliche Materialien

摘要

A packaging material for photosensitive materials which is a multilayer film (4a) comprising two coextruded multilayer inflation films (3a) of which a antistatic agent (wt. %) of an outer layer (2a) is more than 1.2 times as large as an antistatic agent content (wt. %) of a inner layer (1a). In the packaging material of the invention, the necessary amount of antistatic agent to prevent static trouble bleeds out of the surface of the outer layer in a short time, and thereafter, the bleeding amount is almost constant. Therefore, the packaging material is excellent in heat sealability, appearance and touch and not occuring development trouble.