| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated unidirectionally stretched string easy to tear longitudinally and laterally. SOLUTION: This laminated unidirectionally stretched string is obtained by uniaxially stretching a non-stretched film which is produced by laminating a layer containing a crystalline thermoplastic resin (A) and a layer containing an ethylenic resin (B) in the order of (A)/(B)/(A) at a temperature T satisfying the formula (1):Ta>T<Tb [wherein Ta is the fusion peak temperature of the crystalline thermoplastic resin (A) and Tb is the fusion peak temperature of the ethylenic resin (B)]. COPYRIGHT: (C)2005,JPO&NCIPI |
