Solvent Violet 59 / Solvent Dyes
Solvent Dyes
Technical Information
High-Performance Anthraquinone Violet Dye for Engineering Plastics
Solvent Violet 59 (CAS 6408-72-6) is a premium anthraquinone-based oil-soluble dye that delivers exceptional violet coloration with industry-leading lightfastness ratings. Rated 7-8 in polystyrene and a remarkable 8 in polycarbonate, this dye maintains vibrant reddish-violet hues even after prolonged UV exposure — a benchmark that few competing violet colorants can match.
Engineered for versatility, Solvent Violet 59 demonstrates thermal stability up to 300°C across PS, PMMA, and PC systems, enabling its use in high-temperature injection molding and extrusion processes. Its outstanding solubility in dichloromethane (154 g/l) and acetone (37.7 g/l) provides formulation flexibility for both plastic compounding and solvent-based inkjet ink manufacturing.
Unlike basic violet dyes prone to migration, Solvent Violet 59 exhibits excellent anti-bleed properties, making it suitable for multi-layer applications and products where color integrity is critical. From automotive interior trim and electronic housings to polyester fiber dyeing and specialty printing inks, this anthraquinone dye delivers consistent performance across the most demanding industrial applications.
Solvent Violet 59 is a synthetic dye belonging to the solvent dye category, characterized by its vibrant purple hue. This compound is primarily utilized in various applications, including plastics, inks, and coatings, due to its excellent solubility in organic solvents. Its stability and intense color make it a preferred choice for enhancing the aesthetic qualities of products across diverse industries. Proper handling and application techniques are essential to maximize its effectiveness while ensuring safety compliance. CAS No.: 6408-72-6
Molecular formula: C26H18N2O4
Features: Excellent heat resistance and light resistance, good migration resistance and high tinting strength with wide application.
Application: Used for coloring for plastics, PS, ABS, PMMA, PC, PET, polymer, fiber. polyester fiber, and printing inks including inkjet inks.
Description:
Solvent Violet 59 is a synthetic dye characterized by its vibrant purple hue and high solubility in organic solvents. It is widely utilized in various applications, including plastics, inks, and coatings, where it imparts color and enhances visual appeal. The dye exhibits excellent lightfastness and stability, making it suitable for long-lasting products. Its versatility and effectiveness contribute to its popularity in industrial and commercial uses.
Solvent Violet 59 is a reddish violet transparent oil solvent dye.
It has excellent heat resistance and light resistance, good migration resistance and high tinting strength with wide application.
Solvent Violet 59 is used for coloring for plastics, PS, ABS, PMMA, PC, PET, polymer, fiber. polyester fiber, and printing inks including inkjet inks.
Identification Information:
Color Index: Solvent Violet 59
CAS No.: 6408-72-6
Molecular formula: C26H18N2O4
Chemical Family Anthraquinone Series
Product specification
Appearance Purple powder
Tinting Strength 100±3%
Shade Color Similar to the standard,
Ash ≤ 1.0%
Moisture ≤ 1.0%
Color Differential ValueΔE ≤ 0.8 Solvent Violet 59 is a synthetic dye widely utilized in various applications, including plastics, inks, and coatings. Its remarkable stability and vibrant hue make it a preferred choice in industries requiring high-performance coloring agents. The color differential value, ΔE ≤ 0.8, indicates minimal variation in color perception, ensuring consistent quality and reliability in end products. This characteristic underscores the dye’s suitability for applications where color accuracy is paramount.
Density g/cm3 1.47
Melting Point °C 186
Technical Data
| Test Items | PS | ABS | SAN | PMMA | PC | R-PVC | PA6 | PET |
| Heat resistance temperature, °C
(0.05% dyes, transparent) |
300 | – | 300 | 300 | 300 | – | – | – |
| Heat resistance temperature, °C
(0.05% dyes + 1.0% Titanium dioxide) |
300 | 280 | 280 | 300 | 300 | – | – | – |
| Migration resistance | – | – | – | – | – | – | – | – |
| Light fastness (0.05% dyes, transparent) | 7-8 | 6 | – | – | 8 | 7 | – | 7 |
| Weather resistance | – | – | – | – | – | – | – | – |
| Acid resistance (in 5% hydrochloric acid solution) | – | – | – | – | – | 5 | – | – |
| Alkali resistance (in 5% caustic soda solution) | – | – | – | – | – | 5 | – | – |
Solvent Violet 59 solubility in organic solvent at 20°C(g/l)
| Acetone | Butyl Acetate | Methylbenzene | Dichloromethane | Ethylalcohol |
| 37.7 | 31.8 | 27.9 | 154 | 2.5 |
Application
| PS | ● | PET | ○ | PC | ○ |
| AS | ● | PVC- R | ● | SAN | ○ |
| ABS | ● | PVC-U | ● | HIPS | ● |
| PMMA | ● | PA6 | – |
Note: ● = recommended ○ = potential use – = not recommended
Recommended Dosage
Transparent: 0.03
Non-transparent: 0.05
Packaging:
Regular Packaging is in 25kgs paper drum, 450kgs/Pallet.
Unmatched Coloring Performance
Solvent Violet 59 is a premium reddish violet transparent oil-solvent dye designed to bring vibrant and consistent color to your projects. Renowned for its exceptional heat resistance, light resistance, and migration resistance, this dye ensures long-lasting performance in challenging environments. Its high tinting strength and wide application range make it a versatile choice for various industries.
Wide Application Range
Whether you’re working with plastics, polymers, or printing inks, Solvent Violet 59 delivers remarkable results. It is perfectly suited for use in PS (Polystyrene), ABS, PMMA (Polymethyl Methacrylate), PC (Polycarbonate), PET (Polyethylene Terephthalate), polyester fibers, and more. Its ability to provide consistent and vibrant coloration makes it the go-to solution for professionals seeking reliable dyeing solutions.
Enhanced Features for Versatile Use
Solvent Violet 59 stands out with its advanced technical properties. Its excellent heat resistance ensures stability during high-temperature processing, while its superior light resistance protects against fading from prolonged exposure to sunlight. The dye exhibits good migration resistance, ensuring the color remains fixed and doesn’t bleed into surrounding materials. Additionally, its high tinting strength guarantees a rich and intense finish with minimal product usage, saving costs without compromising quality.
If you need a trusted solution for coloring plastics, polymer fibers, and printing inks, including inkjet technologies, Solvent Violet 59 is the ideal choice. From industrial applications to specialized projects, this dye delivers consistent results every time.
Why Choose Honor Pigments?
- 🌍 Global Export Expertise — Trusted by customers in 40+ countries for consistent quality and reliable supply
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- 🧪 Technical Support — Free color matching, formulation advice and sample testing before bulk order
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Frequently Asked Questions — Solvent Violet 59
What makes Solvent Violet 59 suitable for engineering plastics like PC and PET?
Solvent Violet 59 (CAS 6408-72-6) is an anthraquinone-based oil-soluble dye with thermal stability up to 300°C in PS, PMMA, and PC. Its molecular structure provides exceptional lightfastness — rated 7-8 in PS and 8 in PC — making it one of the most light-stable violet dyes available for engineering plastics. This combination of heat and light resistance is critical for automotive interiors, electronic housings, and outdoor applications where color retention is essential.
How does Solvent Violet 59 compare to other violet dyes for inkjet ink applications?
Solvent Violet 59 dissolves readily in dichloromethane (154 g/l) and acetone (37.7 g/l), providing formulation flexibility for solvent-based inkjet systems. Its high tinting strength (100±3%) means lower dye loading is needed to achieve deep violet shades, reducing ink cost. Unlike basic violet dyes, it offers excellent migration resistance preventing color bleed on printed substrates.
Can Solvent Violet 59 be used for polyester fiber dyeing?
Yes. Solvent Violet 59 is suitable for coloring polyester fibers and other polymer fibers. Its anthraquinone structure bonds well with polyester matrices, delivering consistent reddish-violet shades. The dye’s high heat resistance allows it to withstand the elevated temperatures required for fiber processing without decomposition.
What is the recommended dosage for Solvent Violet 59 in transparent vs. opaque formulations?
For transparent applications, the recommended dosage is 0.03% by weight. For non-transparent (opaque) formulations, increase to 0.05%. The dye maintains a tight color differential value of ΔE ≤ 0.8 across batches, ensuring consistent violet shade in both transparent and opaque plastic systems.