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Solvent Violet 37

Solvent Violet 37 is an oil-soluble violet dye belonging to the anthraquinone family. It is widely used for coloring plastics, synthetic fibers, waxes, oils, petroleum products, and some coatings. This dye offers brilliant violet shades with high transparency and excellent lightfastness, making it suitable for both aesthetic and functional applications. Solvent Violet 37 exhibits outstanding heat resistance, strong solubility in organic solvents, and good migration resistance in polymers, ensuring stable and long-lasting coloration.

TRADE NAME:

Transparent Violet FBL,Transparent Violet 2B,Kenawax Purple 3BP,Nitro Fast Violet FBL,Sandoplast Violet FBL

Main Features:

  • Brilliant violet hue with high tinting strength and good transparency

  • Excellent heat stability — suitable for high-temperature processing (up to ~300 °C in some polymers)

  • Good lightfastness for outdoor and long-term applications

  • Strong solubility in organic solvents and compatibility with multiple resins

  • Migration resistance — prevents bleeding or blooming in plastics

  • Wide application range — plastics (PS, ABS, PMMA, PET), coatings, inks, waxes, oils

Applications

Mainly used for polystyrene, ABS resin, hard polyvinyl chloride and other kinds of resin color, also can be used for polyester protoplasmic coloring.

Technical Specifications

  • ‍CAS NO: 61969-50-4
  • CI.NO: Solvent Violet 37
  • Molecular Structure: anthraquinones
  • Shade: purple‍

tandard

Light Fastness

Heat-resistant(℃)

water

Sodium Carbonate(5%)

Hydrochloric acid(5%)

Melting point

Stable

ISO

8

280

Insoluble

Item

Fastness

Sun

8

Heat point(℃)

280

Water resistance

Insouble

Package

20 or 25kg/compound bag, carton box, iron drum, fiber durm for powder dye and 1000kg/tank for liquid dye.

How does Solvent Violet 37 perform under high temperatures?

It offers excellent heat resistance, typically tolerating processing temperatures up to around 300 °C in certain polymers without significant shade change or degradation, making it ideal for engineering thermoplastics.

Is Solvent Violet 37 lightfast for outdoor applications?

Yes. Solvent Violet 37 has good lightfastness, maintaining its vivid violet shade in outdoor conditions, especially when used in UV-stabilized polymer systems or coatings.

What makes Solvent Violet 37 different from other violet solvent dyes?

Compared to other violet solvent dyes, Solvent Violet 37 offers a unique balance of brilliance, migration resistance, and thermal stability, allowing it to perform well in demanding industrial and consumer applications.

Can Solvent Violet 37 be blended with other dyes or pigments?

Yes. It blends well with other solvent dyes and certain pigments to create customized shades. Its compatibility with multiple resin systems makes it versatile for color matching in plastics and coatings.

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