申请人:Conan Christelle
公开号:US20090185992A1
公开(公告)日:2009-07-23
A pearlescent pigment, wherein the pigment is an inorganic material and the color of a homogeneous coating of the pigment, measured over a black background has a CIELAB hue angle, h
ab
, from about 40 to about 320 degrees, wherein L* is from about 35 to about 80, and the chroma value is less than 5. A substrate is coated with iron oxide by oxidizing an iron salt to form a pigment. The pigment may be made by a process of coating iron oxide on a substrate by oxidizing an iron salt. During the coating of the iron oxide, the pH of the mixture is increased. The coating formed has a Fe(III)/Fe(II) ratio of greater than 2. The pigments may be used in a variety of applications including coating, ink, plastic, and cosmetic compositions.
一种珠光颜料,其中颜料是一种无机材料,颜料的均匀涂层在黑色背景上测量的CIELAB色调角度hab为约40至约320度,其中L *为约35至约80,且色度值小于5。通过将铁盐氧化以形成颜料,在基底上涂覆氧化铁。该颜料可以通过涂覆氧化铁于基底上并使混合物的pH值升高的过程制备而成。在涂覆氧化铁期间,混合物的pH值增加。形成的涂层具有大于2的Fe(III)/Fe(II)比率。这些颜料可用于各种应用,包括涂料、墨水、塑料和化妆品组合物。