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Pigments are an important part of coatings. The most important role of coating pigments is to cover and impart color to the coating. In addition, it can protect and improve the application and mechanical properties of coatings. When choosing coating pigment, paint manufacturers should mainly focus on the following properties of pigments:

1. The particle size directly affects the hiding power and tinting power of the coating pigment. The smaller the particle, the greater the dispersion, the more the area of reflected light, and the greater the hiding power. For most coating pigments, the most effective particle size is one-half the wavelength of visible light. Tinting strength is the ability of a pigment to form a strong or weak color when mixed with another pigment. The smaller the particles, the greater the tinting power.

2. The shape of the coating pigment particles. The shape of the coating pigment particles mainly affects the fluidity, storage and durability of the paint.

3. Surface area of coating pigment particles. The specific surface area of a particle is defined as the surface area per unit mass of coating pigment. It is inversely proportional to the particle size. When the mass of the coating pigment particles remains constant, the particle size is reduced by half and the surface area is doubled.

4. Surface treatment of coating pigment raw material particles. With appropriate treatment, the surface of the coating pigment particles is either modified or completely replaced by a new surface.

5. Particle size distribution of coating pigment particles. Coating pigment is a solid particle, no matter what the manufacturing process is, it cannot be composed of a particle size, but has a certain distribution range.

In addition to providing color decoration for coatings, the role of pigments can also provide more improvements to the physical and chemical properties of coatings, such as hiding power, light resistance, weather resistance, temperature resistance, chemical resistance, gloss, mechanical strength, etc.

SANHU COLOR CO., LTD. is a modern enterprise integrating brand management, product development, large-scale production and marketing. As one of the most professional organic pigment manufacturers, SHANHU mainly engaged in various organic pigment series. Its products include nearly 100 varieties in three categories: red, purple and blue. Widely used in inks, paint coatings, ceramic pigments, plastics, rubber, paper and other fields.

The factory has passed ISO9001: 2000 certification, with an annual output of 20,000 tons of organic pigments. Produced under strict process control, it is suitable for ink and coating applications. In plastics, coatings, paper, ink and other applications, it has bright color, stable chemical properties and easy dispersion. Welcome to consult.

If you want to know more examples of organic pigments, please visit our website.