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    • 9. 发明公开
    • 열수축성 폴리에스테르계 필름
    • 热收缩聚酯薄膜
    • KR1020020092819A
    • 2002-12-12
    • KR1020020031247
    • 2002-06-04
    • 도요보 가부시키가이샤
    • 이또,히데끼다보따,노리미나가노,히로시
    • C08J5/18
    • C08J5/18B29D7/01B29K2067/00C08J2367/02Y10T428/249921Y10T428/29
    • PURPOSE: A heat shrinkable polyester film is provided, wherein the film shows an excellent shrinkage finish with only rare occurrence of wrinkles, shrinkage stains and distortion and is suitable for full labels on a bottle, particularly for full labels on a PET bottle. CONSTITUTION: The heat shrinkable polyester film is characterized by having a heat shrinkability of 30 % or more in the main shrinkage direction of the film and 10 % or lower in the direction perpendicular to the main shrinkage direction of the film after treated in hot water of 85 deg.C for 10 sec, and a tear propagation resistance of 1,500 mN or less in the direction perpendicular to the main shrinkage direction after it has been shrunk at 10 % in the main shrinkage direction of the film. Preferably the polyester film comprises a polyester-based resin and a thermoplastic resin.
    • 目的:提供一种热收缩聚酯薄膜,其中该薄膜显示出极好的收缩光洁度,只有很少出现皱纹,收缩痕迹和变形,并且适用于瓶子上的全标签,特别是PET瓶上的全标签。 构成:热收缩性聚酯膜的特征在于,在膜的主收缩方向上的热收缩率为30%以上,在与热处理后的膜的主收缩方向垂直的方向为10%以下 85℃×10秒,在主收缩方向收缩10%之后,在与主收缩方向垂直的方向上的撕裂传播阻力为1500mN以下。 优选地,聚酯膜包括聚酯基树脂和热塑性树脂。