Description of pearlescent pigment composition

I. Principle of pearlescent pigment 

Compared with other pigments, pearlescent powder has an incomparable effect with its unique soft pearl luster. The special surface structure, high refractive index and good transparency make it create the same effect as pearl luster in transparent medium.

The excellent chemical, thermal and mechanical properties of pearlescent powders offer the possibility of a wide range of applications in paints, inks, plastics and many other fields. They offer a new color quality to these products. Pearlescent powders are non-toxic and harmless to human body. Therefore, it can be used in food packaging and children's toys. Dilute acids and alkalis cannot attack pearlescent pigments. Pearlescent pigments are harmless to the environment because they are practically insoluble in water and do not contain any heavy metals, and are in the class of harmless to water. The pearlescent products are not combustible, not self-combustible, non-conductive, and can withstand high temperature of 800℃. Pearlescent products can also be used in reactive coatings for radiation curing systems (electron beam curing, light curing). The chemical structure of pearlescent products makes them have excellent dispersion performance and can be applied to water-based coatings. Application of pearlescent powder in plastic 

Pearlescent products can be used in translucent and semi-transparent plastic resin, using pearlescent pigment will bring an attractive color visual effect. For less transparent resin (pc AVC, etc.), due to the processing characteristics of these resins, the pearlescent luster and color phase can be fully displayed as well. 

Application of pearlescent powder in cosmetics 

The pearlescent body is made of natural mica, which is high temperature resistant and does not contain toxins. It fully complies with international food and drug hygiene regulations (FDA), harmless to human body and does not hurt skin and eyes. The color is diversified and easy to match, it can be used to produce enclosure red, eye shadow, foundation, eyeliner, eyebrow pencil, nail polish, hair cream, moisturizer, hair spray and other different cosmetics. 

Fourth, the application of JinRunLi chemical pearlescent powder in the coating 

Pearl powder has good dispersion and good physical and chemical characteristics, so it is widely used in the coating industry. No matter what kind of monochrome paint mixed with pearlescent, it can become pearlescent paint, and its pearlescent and metallic luster effect is impressive. The pearlescent coating has been used in many fields such as automobile, locomotive, E products and building materials. The product is flake structure, thus the wetting is simple and fast, but the polar surface of the system and the chemical nature of the medium or solvent need to be considered. The wafers are easily broken during dispersion and usually only simple stirring is required for dispersion. If dispersion machinery is used only short time is allowed. It is recommended to disperse the pulp in advance and then force it into the paint material to mix. V. Application of pearlescent powder in printing ink 

The product not only produces pearlescent effect in printing ink but also can keep the original color tone, and can bring many kinds of metallic luster effect and iridescent luster effect. It is widely used in the printing industry, often used in the printing of various wrapping paper, magazines, advertising paintings, textiles and other articles. 

The pearlescent pigment has excellent dispersibility, and generally only needs slight stirring to be mixed into low viscosity printing ink. 

printing ink. Since the product is a laminate structure, it can only be stirred slightly when mixed with Huai ink, avoiding strong mechanical treatment, so as not to break the surface of pearlescent powder. Sixth, the application of pearlescent powder in screen printing 

In the screen printing, the printing ink is transferred from the screen plate to the substrate. The frame of the screen printing plate on the platform is taut with the screen, and the screen is used to transfer the image information, and the ink is extruded through the screen by the rubber roller or squeegee to the substrate. Screen material selection and manufacturing technology plays an important role in the printing effect, the screen fiber thickness determines The thickness of the fiber of the screen determines the thickness of the ink transfer layer. When using pearlescent pigment, it is recommended to use single fiber to avoid the pigment blocking the screen hole. The screen printing ink should have good application properties (adaptability, fluidity and good curing), the ink should not clog the screen holes and dry quickly after printing. Pearlescent pigments can be used in all screen printing ink systems, but are most suitable for translucent ink systems. If the pearlescent pigment is pre-wetted and dispersed, it will mix with the ink better. The amount of pearlescent pigment in screen printing ink is generally 8-15% of the finished oil ink. In screen printing, because of the chemical resistance of pearlescent pigment, the post-printing processing process does not affect the pearlescent effect, so it is most used in textiles. Seven, the application of pearlescent powder in ceramics and enamel Adding some pearl luster in the classical wind scrupulous porcelain products can make the pattern or flower pattern on the porcelain appear more vivid. The mica titanium pearlescent pigment made of synthetic fluorine gold mica or crystal mica flake as the base material has strong high temperature resistance and can be widely applied in ceramics and enamel. But the pearlescent pigment made of ordinary white mica cannot withstand the firing temperature of ceramics and enamel beads. When using, mix the pearlescent pigment with magnetic glaze, and then apply it on the dried porcelain cup according to the degree of glazing, and calcine it in the kiln under the condition of keeping strong oxidation, when the temperature reaches appropriate, beautiful pearlescent pottery products can be formed, and the phantom pearlescent pottery products can show the special beautiful interference color effect. 

Eight, use should be noted 

1、Pearlescent products can get unique and beautiful color effect when used with transparent dyes or pigments, but if used with opaque pigments, it will reduce the pearl luster. 

2, High shear mixing or long time mixing, the particles of pearlescent products will be destroyed, which is the reason of reducing the luster of real pearl. 

3、When the paint is in low viscosity, the particles of pearlescent products will be precipitated, please stir again when using. 

4, due to the phenomenon of complementary color, please do not mix the pearlescent material of rainbow color series products.