| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyamide-based laminated biaxially-stretched film and an inexpensive, easy manufacturing method for the polyamide-based laminated biaxially-stretched film suitable for packaging application, having no curl with a small difference of a shrinkage ratio between the front and rear of one side of a half-cut bag, excelling in oxygen gas-barrier property, impact resistance and flexural fatigue resistance, preventing deterioration and discoloration of contents when used as various packaging materials, and effective in preventing the breakage of a bag and protecting the quality of contents. SOLUTION: The polyamide-based laminated biaxially-stretched film including aromatic polyamide resin has a differenceΔnab from a specific index of refraction and has specific thermal shrinkage property. COPYRIGHT: (C)2009,JPO&INPIT |
