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    • 4. 发明授权
    • Method of surface treatment of thermoplastic resin film
    • 热塑性树脂薄膜的表面处理方法
    • US06863934B2
    • 2005-03-08
    • US10740756
    • 2003-12-22
    • Seiichiro IidaHisashi Tani
    • Seiichiro IidaHisashi Tani
    • B29C55/02C08J7/04B05D3/06B05D3/12
    • C08J7/047B29C55/026C08J2423/00Y10T428/31855
    • Disclosed is a method of surface treatment of a thermoplastic resin film (i) which comprises the steps of subjecting the thermoplastic resin film (i) to surface oxidation, coating the oxidized film with a surface modifier (A) and then stretching the coated film, and which is characterized in that: the surface modifier (A) is an aqueous dispersion prepared by dispersing an olefin copolymer (a) with an unsaturated carboxylic acid or its anhydride bonded thereto in water along with at least one dispersant (b) selected from the group consisting of nonionic surfactants, nonionic water-soluble polymers, cationic surfactants and cationic water-soluble polymers; the ratio by weight of (a)/(b) in terms of the solid content thereof falls between 100/1 and 100/30; and the mean particle size of the resin in the surface modifier (A) is at most 5 μm. The method can provide a thermoplastic resin film of good melt thermal transfer printability and good offset printability capable of giving prints of good water resistance.
    • 公开了一种表面处理热塑性树脂膜(i)的方法,其包括以下步骤:使热塑性树脂膜(i)进行表面氧化,用表面改性剂(A)涂覆氧化膜,然后拉伸涂膜, 其特征在于:表面改性剂(A)是通过将烯键共聚物(a)与不饱和羧酸或其酸酐键合在水中的水分散体(b)与至少一种选自 由非离子表面活性剂,非离子水溶性聚合物,阳离子表面活性剂和阳离子水溶性聚合物组成的组; (a)/(b)的固体成分的重量比在100/1〜100/30之间; 表面改性剂(A)中的树脂的平均粒径为5μm以下。 该方法可以提供具有良好的熔融热转印印刷性和良好的可印版性的热塑性树脂膜,能够赋予耐水性良好的印刷。