| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat-shrinkable multilayered barrier film adapted to the heat shrinkage vacuum packing of various contents, especially, foods to be utilized in the formation of a package, having low temp, shrinkability and gas barrier properties, wide in a superposing seal temp. range and having inner surface oil resistance and pravical transparency. SOLUTION: In a heat-shrinkable multilayered barrier film, a seal layer is composed of a polyethylene resin containing 10-25wt.% of at least one kind of olefin selected from 4-12Cα-olefins and having density of 0.860-0.910g/cm<3> and a gas barrier layer is composed of a polyvinylidene chloride resin and containing vinyl chloride in a ratio of 11-28wt.% as a copolymer component as a constituent unit of a structure wherein the average polymerization chain length of vinyl coloride is 1.2-2.5 and the number of chains thereof is 30-35.
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