| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-chlorine-based stretch wrapping film, which substantially prevents wrinkles in a wrapping film when a commercial product is wrapped, frozen and delivered to a shop and then thawed and displayed.SOLUTION: The stretch wrapping film is a laminate film comprising at least three layers including: outermost layers essentially comprising an ethylene-based resin (A) component; and a middle layer essentially comprising a propylene-based resin (B) component. The ethylene-based resin (A) component comprises a mixture component of one or more compounds selected from a low-density polyethylene, linear low-density polyethylene, linear ultralow-density polyethylene, ethylene-vinyl acetate copolymer, ethylene-acrylate copolymer, ethylene-methacrylate copolymer and ionomer resin. According to a dynamic viscoelasticity measurement method, the film shows an average loss tangent (tanδ) of 0.1 to 0.5 in a temperature range from -40 to 0°C at a vibration frequency of 10 Hz and a strain of 0.1%. |
