Process for tinting plastic articles
    1.
    发明授权
    Process for tinting plastic articles 有权
    染色塑料制品的工艺

    公开(公告)号:US06994735B2

    公开(公告)日:2006-02-07

    申请号:US10434242

    申请日:2003-05-08

    IPC分类号: D06P1/613

    摘要: A process for tinting a molded article is disclosed. The process entails applying by spraying or by flow coating a hot, dye-solution onto at least a portion of the surface of a molded article to obtain a tinted article and washing the tinted article. In addition to the dissolved dye, the dye solution that is substantially free of particulate matter contains an aqueous solution of a carrier and an optional emulsifier. The article is one molded of a thermoplastic molding composition. In an embodiment of the invention, the dye solution is prepared by filtering a hot aqueous solution through a bag filter that contains a dye to obtain a hot, dye-solution. In a further embodiment, activated carbon is used to purify the dye solution to obtain a dye-free aqueous solution.

    摘要翻译: 公开了一种着色模制品的方法。 该方法需要通过喷雾或通过将热的染料溶液流涂在模制品的表面的至少一部分上来获得有色制品并洗涤有色制品。 除了溶解的染料之外,基本上不含颗粒物质的染料溶液含有载体和任选的乳化剂的水溶液。 该制品是由热塑性模塑组合物成型的。 在本发明的一个实施方案中,通过将热水溶液通过含有染料的袋式过滤器过滤以获得热的染料溶液来制备染料溶液。 在另一个实施方案中,使用活性炭来纯化染料溶液以获得无染料的水溶液。