| 摘要 |
PROBLEM TO BE SOLVED: To reduce cost and to enhance the uniform dispersibility of a light shielding material and the compatibility to various kinds of both of crystalline and amorphous resins for dilution and to eliminate an odor problem by using a thermoplastic resin composition containing each specified amount of a styrene type thermoplastic elastomer and a light shielding material for molding the packaging material. SOLUTION: The packaging material for the photosensitive material is molded by using the thermoplastic resin composition containing the >=0.3weight% styrene type thermoplastic elastomer and the >=0.05weight% light shielding material. When this elastomer is diluted with the resin for dilution, it is well compatible with both of the crystalline resin and the amorphous resin and a homogenized composition is formed. A light shielding single layer film 1a for packaging is obtained by incorporating the light shielding material in the thermoplastic resin and molding it to a film. |
