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Color principle of pearlescent pigments

by:Xucai     2019-12-24
Compared with the traditional optical absorption type organic inorganic pigment and optical reflection type metal pigment, the color principle of Pearlescent Pigment is completely different, so its effect is also unique. The pearlescent pigment of the Pearlescent Pigment brand is the main representative of the optical interference pigment above the three-legged. Pearlescent Pigment crystals will reflect and refract light, most of the light will be reflected in multiple parallel to form a pearl luster, a part of the light (Such as red) It will penetrate the transparent crystal, and the rest will be reflected. The hue of the reflected light is the complementary color of the transmitted color, that is, Green. The sheet is coated with titanium dioxide with high refractive index, and pearlescent effects of silver white or gold, red, purple, blue, green and other different hues can be obtained by accurately controlling the thickness of the film. Titanium dioxide and ferric oxide with high refractive index are coated on the sheet, and gold pearlescent with different hue can be obtained by accurately controlling the coating thickness of metal oxide. Coated with high refractive index ferric oxide on the sheet, the flash effect of different metallic luster can be produced by accurately controlling the thickness of the film. Pearlescent glitter from metallic glitter manufacturers show different effects in use depending on the size of their particles. In general, the larger the particles, the stronger the flicker effect, and the weaker the hiding power of the background color; On the contrary, the smaller the particles, the stronger the hiding power to the background color, and the softer the luster. Changing the thickness of metal oxides or the types of metal oxides will bring about color changes. Pearlescent pigments can be used for transparent and translucent plastic resins. The use of pearlescent glitter will bring a fascinating color visual effect. Usually, the more transparent the resin is, the more it can fully display the unique luster and color effect of pearlescent glitter. For less transparent resins (PC/PVC, etc) Due to the processing characteristics of these resins, the pearlescent luster and hue can also be fully displayed. Pearlescent pigments are widely used in cosmetic containers, various packaging, toys, decorative materials, various films and other plastic products.
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