BAG HAVING CONTROLLED OXYGEN-PERMEABILITY

摘要

[PROBLEMS] To provide a bag which is excellent in flexibility, wear resistance, heat resistance and heat-sealing property and has a controlled oxygen-permeability. [MEANS FOR SOLVING PROBLEMS] Disclosed is a bag having a controlled oxygen-permeability, which comprises a non-woven fabric and a porous film assembled integrally, wherein the non-woven fabric is made of a polyester fiber comprising polybutylene terephthalate, polypropylene terephthalate or polylactic acid as the main ingredient, the porous film has a Frazier-type air permeability of 0.05 to 2 cc/cm²·sec and the edge part is heat-sealed.