| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a film having excellent low-temperature impact resistance, capable of easily peelable sealing and firmly sealing, and especially useful as a double bag for solution infusing, etc., by comprising a specific polyethylene- based composition and selecting a sealing condition. SOLUTION: This film for easily peelable sealing is composed of a polyethylene-based composition comprising (A) 30-90wt.% of (i) high-pressure low density polyethylene having <=0.930g/cm<3> density or (ii) a linear low density ethylene.α-olefin copolymer having <=0.930g/cm<3> density and (B) 70-10wt.% of high density polyethylene having >=0.950g/cm<3> density. Preferably, a difference of melting point between the component A and the component B is >=10 deg.C. In the case of easily peelable sealing, a heat sealing is preferably performed at a temperature higher than the melting point of the component A having relatively low melting point and at a temperature lower than melting point of the component B having relatively high melting point. In the case of firmly sealing, the heat sealing is preferably performed at a temperature higher than the melting points of the component A and the component B.</p> |
