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    • 50. 发明申请
    • PIGMENT HAVING ANGLE DEPENDENCE OF THE INTERFERENCE COLORS AND THE PRODUCTION PROCESSES THEREOF
    • 具有干涉色的角度依赖性的颜料及其生产工艺
    • US20090090275A1
    • 2009-04-09
    • US11573447
    • 2005-06-09
    • Jiansheng FuYiting PengXiaohui Tian
    • Jiansheng FuYiting PengXiaohui Tian
    • C09C1/28B05D1/36
    • C09C1/0024C09C1/0015C09C1/003C09C2200/102C09C2200/301C09C2220/106
    • The invention discloses multilayer allochroic pigments having angle dependence of the interference colors and the production processes thereof, in which a synthetic flake of silicate is used as the substrate, and a metal oxide coating with refractive index of more than 1.8 and an oxide coating with refractive index of less than 1.8 are deposited alternately on a surface of the flake of silicate, the number of the coatings is at least three, and said oxide coating with refractive index of less than 1.8 always lies between two metal oxide coatings with refractive index of more than 1.8. The processes involve a wet chemical hydrolysis step to alternately deposit said oxide coating with high refractive index and said oxide coating with high refractive index on the surface of the flake of silicate. The present pigments, which exhibit different strong interference colors as observed at different view angles, could be produced at a low cost and by a simple process.
    • 本发明公开了具有角度依赖于干涉色的多层异构颜料及其制造方法,其中使用硅酸盐的合成薄片作为基材,以及折射率大于1.8的金属氧化物涂层和具有折射率的氧化物涂层 小于1.8的指数交替沉积在硅酸盐薄片的表面上,涂层的数量至少为3,并且所述折射率小于1.8的氧化物涂层总是位于折射率更高的两个金属氧化物涂层之间 比1.8。 该方法包括湿化学水解步骤,以高折射率交替沉积所述氧化物涂层,并且在硅酸盐薄片的表面上具有高折射率的氧化物涂层。 可以以低成本和简单的方法生产出以不同视角观察到的表现出不同强干涉色的本发明颜料。