COLORED METALLIC PIGMENT, PROCESS FOR PRODUCING THE SAME, AND COATING COMPOSITION AND COSMETIC PREPARATION COMPRISING SAID COLORED METALLIC PIGMENT
申请人:TOYO ALUMINIUM KABUSHIKI KAISHA
公开号:EP1990377A1
公开(公告)日:2008-11-12
This invention provides a colored metallic pigment, which can develop a variety of colors and varied interference colors while maintaining good lightfastness, weatherfastness and hiding power, a process for producing the same, a coating composition containing the colored metallic pigment and capable of providing a coating film having excellent finished appearance, and a cosmetic preparation containing the colored metallic pigment, having excellent hiding power, and capable of providing sharp hue. The colored metallic pigment comprises at least a metallic pigment, an amorphous silicon oxide film layer provided on the surface of the metallic pigment, a metal layer provided on the surface of the amorphous silicon oxide film layer, and metallic particles provided on the surface of the metal layer. The metallic particles are provided so as to directly cover a part of the surface of the metal layer. In the colored metallic pigment, the metal layer preferably comprises at least one metal selected from Sn, Pd, Pt and Au. The metallic particle preferably comprises at least one metal selected from Cu, Ni and Ag.
本发明提供了一种彩色金属颜料,它能在保持良好的耐光性、耐候性和遮盖力的同时,显现出多种颜色和各种干扰色;还提供了一种生产彩色金属颜料的工艺;一种含有该彩色金属颜料并能提供具有良好成品外观的涂膜的涂料组合物;以及一种含有该彩色金属颜料、具有良好遮盖力并能提供鲜明色调的化妆品制剂。彩色金属颜料至少包括金属颜料、设置在金属颜料表面的非晶氧化硅薄膜层、设置在非晶氧化硅薄膜层表面的金属层以及设置在金属层表面的金属颗粒。金属颗粒的设置是为了直接覆盖金属层的部分表面。在有色金属颜料中,金属层最好包括至少一种选自 Sn、Pd、Pt 和 Au 的金属。金属颗粒最好包括至少一种选自铜、镍和银的金属。