Shenzhen Yumingjie pearlescent pigments are widely used in cosmetics, plastics,printing, printing ink and artificial leather, leather, wallpaper, enamel and ceramic, architectural coatings industry. The main types of pearlescent pigments are: natural scale pearlescent pigments, bismuth oxychloride crystalpearl pigment, mica coated pearlescent pigments. Is the most widely usedcoated mica pearlescent pigment. They are mica surface covered with a thintitanium oxide or iron oxide, or other metal oxides. Mica size from 2um to700um, the thickness of 0.5um. Mica coated metal oxide is very smooth, so it has good performance of light reflection, and transparent, means that only a portion of the light is reflected, transmission part of the light passing through the mica sheet to another layer, can continue to be reflected, results in the formation of multiple reflected many aspects. Eyes are very difficult in a layerof focus, and established the depth of light reflection. So you can see awonderful depth shine, we called: "pearl". Different particle size have differentpearlescent effect:
Diameter of <15um flat pearl, high covering power.
5 -- 25um soft pearlescent, high covering power.
10 -- 60um pearl light, hiding power.
10 - 100um flash pearl light, hiding power is low.
20 - 200um flash pearl light, hiding power is low.
The pearlescent effect can be determined by the thickness of the titanium dioxide coating. White pearl is formed by the reflection of the TiO2 layer thin,with the increase of the thickness of the coating, the reflected light appears white, yellow, gold, respectively, red, purple, blue, green.
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