BARRIER PACKAGING MATERIAL WITH OXYGEN DETECTING FUNCTION, PACKAGING BAG USING THE MATERIAL, AND LID MATERIAL FOR BARRIER CONTAINER

摘要

PROBLEM TO BE SOLVED: To facilitate the detection of the presence or absence of oxygen by a change in the color of an oxygen indicator, and prevent a deterioration caused by light, by constituting a packaging material in a layered manner and providing an oxygen indicator layer in the layer of the packaging material.

SOLUTION: In this barrier packaging material with an oxygen detecting function, the oxygen indicator layer (13) composed of an ink-dried coating, and a light shielding layer (14) are applied onto a biaxially-stretched polyester film (12) of a laminate which keeps the biaxially-stretched polyester film (12) and a sealant film (15) sequentially superposed on one of both sides of a transparent barrier film (11).

COPYRIGHT: (C)2008,JPO&INPIT