What are the types of solvent dyes?

The types of solvent dyes mainly include the following types:

Basic dye structure solvent dyes: This type of dye is converted from basic dyes. By removing certain groups (such as -CL) in the basic dye structure, the solubility and stability in the solvent are increased. It is mainly used in the printing of oil products, carbon bags, packaging bags, and the coloring of resins, but due to its low thermal stability, the maximum heat resistance is about 100°C, and the scope of use is limited.

Acid dye and basic dye complex coprecipitation solvent dye: This type of dye is formed by the reaction of an anionic acid dye and a cationic basic dye, which increases the solubility and heat resistance in the solvent. Suitable for transparent paint and ink, with good heat resistance and stability, about 180°C. Suitable for the coloring of high-end furniture transparent paint and automotive paint, and can also be used for the coloring of plastics and polyester pulp.

Metal complex solvent dyes: This type of dye is a metal complex that can be dissolved in organic solvents, usually with excellent thermal stability and weather resistance. It is widely used in the coloring of high-end furniture transparent paint and automobile paint. It can also be used for the coloring of plastics and polyester pulp. The heat resistance can reach about 200℃.

‌Solvent dyes with disperse dye structure: By introducing long carbon chain alkyl compounds, the solubility of disperse dyes in solvents is increased. It is widely used in the coloring of organic glass, plastics, ABS resin and polyester pulp.

‌Solvent dyes of other structural types: Including phthalocyanine, azine, thiazine and other structural types of solvent dyes, each with unique chemical structure and performance characteristics. These dyes can be used for coloring in many fields such as plastics, rubber, ink, transparent paint, etc.

‌Definition and application fields of solvent dyes: Solvent dyes are a type of colored substances that are insoluble in water but soluble in organic solvents. They have the characteristics of bright colors, good transparency, strong thermal stability, excellent light resistance and weather resistance.