| 摘要 |
PURPOSE:To provide an excellent packaging material which is heated after one or a plurality of articles packed with a polyethylene film are covered with a thermal shrinkable films formed of a composition of polyethylene and polypropylene and prevented from the occurrence of fusion between inner and outer packages and freed from wrinkles and slack. CONSTITUTION:There is no limit on the size and the shape of an article to be internally packed, and according to a kind of an internal package, for example, in a case of a skin package and a thermal shrinkage package, a film consisting mainly of branch low density polyethylene or an ethylene-acetate vinyl copolymer is used and in a case of a stretch package, a film consisting of mainly linear low density polyethylene is used. In an outer package, a thermal shrinkage film consisting of a composition of polyethylene and polypropylene is used. But, in a case of a thermal shrinkage package with a part or the whole of which the polyethylene film of the inner package makes contact, a package used in combination with a pallet, a container, and a binding may be used. An article internally packed with a polyethylene film is further externally packed with a thermal shrinkage film and heated to produce a double packaging material. |
