| 摘要 |
PURPOSE:To enhance low temp. heat-sealability making high speed bag-making possible by laminating an ethylene vinyl acetate copolymer layer containing an anti-blocking agent and a heat sealable layer composed a stickiness imparting agent to a crosslinked high density polyethylene biaxially stretched film. CONSTITUTION:An ethylene-vinyl acetate copolymer layer containing an anti- blocking agent and a heat-sealable layer composed of a stickiness imparting agent are laminated to at least the single surface of a crosslinked high density polyethylene biaxially stretched film whose crosslinking degree is lowered toward the inside of the film in the thickness direction thereof or, between the heat sealable layer and the biaxially stretched film concerned, the ethylene- vinyl acetate copolymer containing no anti-blocking agent and the heat-sealable layer are laminated. Further, a heat sealable layer composed of 1,2-polybutadiene containing the anti-blocking agent is laminated to at least the single surface of this biaxially stretched film or the heat-sealable layer composed of 1,2- polybutadiene containing no anti-blocking agent may be formed between the sealable layer and the biaxially stretched film. |
