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The characteristics of pearlescent powder pigments

1. The principle of pearlescent products

Compared with other pigments, pearlescent pigments have an incomparable soft pearl luster. The special surface structure, high refractive index and good transparency enable it to create the same effect as pearl luster in a transparent medium. Pearlescent pigments are composed of several thin layers of metal oxides coated with mica. Changing the thin metal oxide layer can produce different pearlescent effects.

Excellent chemical, thermal and mechanical properties provide it with the possibility of being widely used in paints, inks, plastics and a variety of fields, providing these products with a brand-new color quality. It is non-toxic and harmless to the human body, so it can be used for food packaging and children's toys. Dilute acids and alkalis cannot corrode pearlescent pigments and are harmless to the environment, because they are actually insoluble in water and do not contain any heavy metals, which are harmless to water quality. Non-flammable, non-spontaneous, non-conductive, can withstand high temperatures of 800°C, and can also be used in reactive coatings for radiation curing systems (electron beam curing, light curing). The chemical structure makes it have excellent dispersion properties and is very suitable For water-based coatings.

White Pearl Pigment

2. The characteristics of pearl powder

Chemical resistance: water resistance, dilute acid resistance, alkali resistance, organic solvent resistance, heat resistance (no change in temperature of 800 ℃), spontaneous combustion of pigments, non-conductive, non-magnetic, and excellent light resistance.

Toxicity: It is non-toxic through inspection by government authority.

Oil absorption: 90±20g/100g

Gold Pearl Pigment

3. Application of pearl powder in plastics

It can be used for transparent and translucent plastic resins, and it will bring a charming color visual effect. Generally, the better the transparency of the resin, the more it can fully exhibit its unique luster and color effects. 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.

It is widely used in plastic products such as cosmetic containers, various packaging, toys, decorative materials, various films and so on.

4. Application of pearl powder in cosmetics

The pearlescent pigment is made of natural mica, is resistant to high temperature, does not contain toxins, and is in full compliance with the International Food and Drug Hygiene Regulations (FDA). It is harmless to the human body and does not harm the skin and eyes. The color is diversified and the color matching is convenient. It can be used to produce different cosmetics such as lipstick, eye shadow, foundation, liquid eyeliner, eyebrow pencil, nail polish, hair cream, moisturizer, hair spray and so on.

5. Application of pearl powder in coatings

It has good dispersibility and good physical and chemical properties, so it is widely used in the coating industry. No matter what kind of monochromatic paint is mixed with pearlescent pigments, it can become pearlescent paint, and its pearlescent and metallic luster effects are impressive. Pearlescent coatings have been used in many fields such as automobiles, locomotives, daily necessities, and building materials.

Pearlescent powder has a flake structure, so wetting is simple and rapid, but the polar surface of the system and the chemical properties of the medium or solvent must be considered. The pearl powder wafers are easily damaged during dispersion, and usually only need to be stirred to be dispersed. If the dispersing machine only allows a short time to mix, it is recommended to pre-disperse the slurry and then add it to the paint for mixing.

6. Application of pearl powder in printing ink

In the printing ink, it not only produces pearlescent effect while maintaining the original color tone, but also can bring a variety of metallic luster effects and iridescent luster effects. It is widely used in the printing industry and is commonly used in various packaging papers, magazines, posters, textiles and other items. Printing.

Pearlescent powder has excellent dispersibility, and it can be mixed into low-viscosity printing inks with a slight stirring. Because the pearlescent pigment has a layered structure, it can only be stirred slightly when mixed with the ink to avoid strong mechanical treatment to avoid damage to the surface of the pearlescent powder.

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