| 摘要 |
PROBLEM TO BE SOLVED: To provide a new non-chlorine based film for stretch packaging in which whitening is hard to be generated in the film after packaging even if being subjected to high stretching upon overlapping.SOLUTION: The film for stretch packaging is a laminated film composed of at least three layers having both surface layers comprising an ethylenic resin (A) as the main component and an intermediate layer comprising a propylene-based resin (B) as the main component, and simultaneously satisfies the following inequalities (1) to (3): Tc(Y)-Tc(X)≥30 (1)&sgr;(X)-&sgr;(Y)≤60 (2)&sgr;(Y)≤60 (3)(in the above inequalities, Tc(X) denotes the crystallization temperature (°C) of the surface layers, Tc(Y) denotes the crystallization temperature(°C) of the intermediate layer, &sgr; (X) denotes the generation stress (kgf/cm) in the longitudinal direction of the film in a 150% elongation percentage; and &sgr;(Y) denotes the generation stress (kgf/cm) in the width direction of the film in a 150% elongation percentage). |
