| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the appearance and durability of a packing body, in a packing using a biodegradable plastic film. <P>SOLUTION: In the packing body using a biodegradable film composed of (1,4-butanediol, succinic acid, an adipate and lactic acid) copolymer comprising a copolymer of 1,4-butanediol-succinic acid, adipate, and lactic acid, generation of scorching of the packing body and peeling between the packing bodies after being adhered are eliminated by adhering it by using a thermoplastic rubber-based hot-melting adhesive melted at a temperature of 140-160°C, also the generation of melting of the packing body part other than fused and cut part by heat of a blade and peeling of the fused and cut part of packing bodies after being fused and cut, by fusing and cutting with a cross cutter having the blade heated to a temperature of 220-230°C. <P>COPYRIGHT: (C)2008,JPO&INPIT |
