MULTILAYER FILM FOR PACKAGING BAG

摘要

PROBLEM TO BE SOLVED: To realize improvement of productivity in addition to excellent film performance. SOLUTION: A multilayer film 11 for a packaging bag is a multilayer film having a 3-layer structure that a first layer 12 of an inner layer, a second layer 13 of an intermediate layer and a third layer 14 of an outer layer are, for example, laminated. Resin of the layer 13 is formed of ethylene.α-olefin copolymer. The copolymer has characteristics of (a) to (d) below. (a) A density is 0.850 to 0.935g/ml. (b) MI is 0.3 to 15.0g/10min. (C) Mw/Mn=1.5 to 3.0. (d) Tm<=125 deg.C. Resin of the layers 12, 13 is formed of ethylene.α-olefin copolymer.