| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a packaging material which is steam-permeable, difficult to generate condensate in an extensive temperature condition, and beautiful in appearance. SOLUTION: Biaxially-oriented 6-nylon film of 15 m thick and ethylene vinyl acetic copolymer of 20 m thick are laminated by extrusion laminate. The content of vinyl acetate of the ethylene-vinyl acetate copolymer is 20 wt.%. 0.5 wt.% surfactant containing 95 wt.% di-glycerin mono oleate is added to ethylene- vinyl acetate copolymer. Three sides of this film are affixed by heat seal to form a bag of the size of 150 mm×150 mm.</p> |
