发明名称 HEAT-SHRINKABLE POLYESTER-BASED FILM AND PRODUCTION METHOD THEREFOR
摘要 PROBLEM TO BE SOLVED: To provide a heat-shrinkage polyester-based film which has an appear ance of a frosted glass tone without requiring further working after a film formation, is extremely reduced in occurrence of shrinkage whitening, shrinkage unevenness, wrinkle, distortion, longitudinal sinking or the like and is suitably used for a label. SOLUTION: The heat-shrinkage polyester-based film is characterized by containing 1,4-cyclohexane dimethanol component in an amount of 5% by mol or more in 100% by mol of a polyhydric alcohol component, wherein in the film before the heat-shrinkage, the all-light transmittance is 80 to 90%, the haze is 15 to 60% and the internal haze of the film before the heat-shrinkage measured under the following conditions is 50% or less of the haze. Herein, the internal haze is a haze measured according to JIS K7105 (A method) on a sample obtained by sandwiching the film before the heat-shrinkage, of which upper surface and lower surface are coated with a cedar oil, between two glass plates.
申请公布号 JP2003034729(A) 申请公布日期 2003.02.07
申请号 JP20010223255 申请日期 2001.07.24
申请人 TOYOBO CO LTD 发明人 HAYAKAWA SATOSHI;TAHODA TADASHI;TAKEGAWA YOSHIAKI;ITO KATSUYA;YONEDA SHIGERU;NOSE KATSUHIKO
分类号 C08J5/18;B29C61/06;B29K67/00;B29K105/02;B29L7/00;B29L9/00;B32B27/36;C08K3/00;C08L67/02;C08L101/00;G09F3/04;(IPC1-7):C08J5/18 主分类号 C08J5/18
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