Solvent Violet 31

Solvent Violet 31 is an oil-soluble anthraquinone-based dye known for its vivid violet shade and strong coloring power. It is widely used in coloring plastics, synthetic fibers, waxes, oils, and certain coatings due to its high transparency, excellent lightfastness, and heat stability. Its superior solubility in organic solvents makes it ideal for applications requiring uniform dispersion without affecting the physical properties of the base material.

TRADE NAME:

Transparent Violet RR,Oil Violet 26,Solvent Violet F3B,Fast Rose FF3B,Red Violet RS,Violet E4R

What Are the Distinctive Characteristics and Advantages of Solvent Violet 31?

Solvent Violet 31’s unique azo molecular structure endows it with exceptional performance, including the following key advantages:

• ‍Intense and Bright Chromaticity: It delivers a vivid purple-red (magenta) hue with high color saturation. The relative color strength is stably maintained at 100±2 (relative to the standard sample), and the color brightness value (L*) reaches 45±3, making it highly eye-catching in coloring applications.
• Balanced Light and Thermal Stability: Its light fastness achieves grade 6-7 in full-shade systems and grade 5-6 in tinted formulations, suitable for indoor and semi-outdoor products. The thermal stability is reliable, with no significant discoloration when processed at 260℃ for 8 minutes, meeting the requirements of most plastic processing processes.
• Excellent Solubility and Dispersion: Insoluble in water (solubility <0.003 g/L at 25℃) but highly soluble in aromatic solvents, esters, and ketones. The solubility in ethyl acetate can reach 20 g/L at 25℃, and its fine particle size (3-8 μm) ensures rapid and uniform dispersion in substrates.
• Strong Compatibility: It exhibits excellent compatibility with a wide range of polymers, including polyolefins (PE, PP), polystyrene (PS), and vinyl polymers (PVC), avoiding issues such as phase separation or blooming.
• Cost-Effective and Versatile: Compared with anthraquinone-based violet dyes, it offers a more competitive cost while maintaining satisfactory performance. Its adaptability to multiple processing methods (masterbatch, dry blending) enhances its industrial applicability.‍

Application:

it can be used for different resins coloring, such as PS,HISP,ABS,PC,PET,etc. also used for smoke,oil,wax,ink.

What Are the Specific Applications of Solvent Violet 31?

Leveraging its comprehensive performance, Solvent Violet 31 is widely used in general industrial coloring and some medium-end application fields, with the main scenarios as follows :

General Plastic Coloring:

Ideal for coloring PE, PP, PVC, and PS plastics, used in the production of daily necessities such as plastic buckets, cosmetic packaging, stationery sets, and agricultural film accessories .

Textile and Fiber Dyeing:

Applied in the mass-coloring of polypropylene (PP) fibers and modified polyester fibers, producing fabrics for casual clothing, decorative textiles, and non-woven materials .

Ink and Coating Industry:

Used in solvent-based flexographic inks, screen printing inks, and wood lacquers, mainly for packaging printing (e.g., snack bags, gift boxes) and indoor furniture decoration .

Other Industrial Uses:

Employed in the coloring of wax products (candles, crayons), leather dyes, and industrial marking paints, expanding its application with stable coloring effects .

Technical Specifications

• ‍CAS NO: 70956-27-3
• CI.NO: Solvent Violet 31
• Molecular Formula: C14H8Cl2N2O2
• Molecular Weight: 307.13
• Shade: Blue light purple.
• In concentrated sulfuric acid for shallow dark brown, dilution after purple.‍

Package

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