| 摘要 |
<P>PROBLEM TO BE SOLVED: To propose a bag with controlled oxygen permeability, which is excellent in flexibility, wear resistance, heat resistance, and heat-sealability. <P>SOLUTION: The bag with controlled oxygen permeability consists of: nonwoven cloth made of a polyester fiber mainly containing one of polybutylene terephthalate, polypropylene terephthalate and polylactic acid; and a porous film with Frazier permeability of 0.05-2 cc/cm<SP>2</SP>second, and are integrally joined and heat-sealed on their edges. <P>COPYRIGHT: (C)2007,JPO&INPIT |
