| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a novel non-chlorine-based stretch packaging film which is not apt to whiten after packaging even when high-stretch packaging is performed. <P>SOLUTION: The stretch packaging film is a laminate film composed of at least three layers, including both outermost layers each containing an ethylene resin (A) component as a principal component; and an intermediate layer containing a propylene resin (B) component as a principal component. The ethylene resin (A) component is composed of a mixed component of one or two or more selected from low-density polyethylene, linear low-density polyethylene, linear ultralow-density polyethylene, ethylene-vinyl acetate copolymer, ethylene-acrylate copolymer, ethylene-methacrylate copolymer and ionomer resin, and the difference in stress generated at 150% shrinkage ratio between the vertical direction and horizontal direction of the laminate film (the value in the vertical direction-the value in the horizontal direction) is 70 kgf/cm<SP POS="POST">2</SP>or less. <P>COPYRIGHT: (C)2013,JPO&INPIT |
