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Solvent Red 146 is an advanced, high-molecular-weight organic polymer-soluble dyestuff belonging to the anthraquinone class. Designed primarily for coloring engineering plastics, masterbatches, and synthetic fibers, it provides a bright, bluish-red hue with exceptional chromatic intensity.
Unlike conventional organic pigments that remain suspended, Solvent Red 146 dissolves completely in molten polymers, forming a molecular-level dispersion. This guarantees total transparency, zero haze, and eliminates clogging in spin packs during micro-denier synthetic fiber extrusion.
"For plastics compounding and engineering polymers, Solvent Red 146 is chosen for its structural stability under thermal stress up to 300°C, making it the industry standard for demanding automotive and consumer applications."
Optimizing your formulations requires precise physical and chemical parameters. The technical properties of our premium grade OEM Solvent Red 146 are outlined below:
| Technical Parameter | Specification Value | Test Standard / Method |
|---|---|---|
| Color Index Number | C.I. Solvent Red 146 | International Color Index |
| Appearance | Bluish Red Powder | Visual Inspection |
| Heat Stability | Up to 300°C (in PS & Polycarbonate) | DIN 53772 / ISO 294 |
| Light Fastness | 7 - 8 Grade (Full shade) | Blue Wool Scale (ISO 105-B02) |
| Acid Resistance | 5 (Excellent) | ISO 105-E05 |
| Alkali Resistance | 5 (Excellent) | ISO 105-E06 |
| Ash Content | ≤ 0.5% | Gravimetric Method |
| Moisture Content | ≤ 1.0% | Karl Fischer Titration |
China remains the cornerstone of the global chemical supply chain. Tianjin Sunrise Chem Group pairs advanced technical advantages with robust manufacturing scales to deliver premium products to global markets.
Our manufacturing facility in Tianjin leverages localized access to raw materials and key intermediates. This upstream integration minimizes supply disruptions and stabilizes price volatility.
Equipped with modern emissions scrubbers and closed-loop water treatment systems, our plants comply with local regulations, securing a stable and uninterrupted production run.
From customizable particle size distributions and dust-free granulated formulations to optimized masterbatches, our R&D department configures the chemical profile to match your processing requirements.
The global solvent dyes market is undergoing a major technological transformation. Key environmental and regulatory frameworks are pushing industries to shift toward sustainable manufacturing practices.
Regulatory Tightening: Global compliance requirements like REACH (Europe) and TSCA (USA) have phased out low-grade, heavy-metal-containing dyestuffs. Our Solvent Red 146 features high purity levels, zero heavy metal contamination, and low VOC attributes, keeping our clients compliant with chemical regulations.
Shift to Dust-Free Handling: To prevent airborne contamination and improve worker safety, compounding factories are moving away from fine chemical powders. In response, we have developed dry, micro-granulated, dust-free options that maintain identical thermal properties and dissolution speeds.
Solvent Red 146 is used across various industrial sectors. See how Sunrise Chem helps resolve common production and quality challenges:
Compounding technical polymers like Polycarbonate (PC) and Polyethylene Terephthalate (PET) requires processing temperatures of 280°C to 300°C. Solvent Red 146 stays molecularly stable under high heat, preventing discoloration and polymer chain degradation during compounding.
For polyester and polyamide synthetic fibers, standard pigments can cause filter clogging and fiber breakage. Solvent Red 146 dissolves directly into the polymer melt, ensuring continuous extrusion and excellent fastness to rubbing, washing, and sunlight.
Solvent Red 146 is also used in high-grade gravure and flexographic inks for flexible packaging, offering high transparency, chemical resistance, and compatibility with various resin binders.
Tianjin Sunrise Chem Group specializes in manufacturing and exporting high-quality dyestuffs. Our product portfolio includes Direct dyes, Acid dyes, Basic dyes, Sulphur dyes, Solvent dyes, Liquid dyes, and Fluorescent dyes.
Backed by decades of industry and export experience, we have built a reputation for reliability and excellence, serving clients across the denim, textile, leather, paper, and plastic sectors.
We focus closely on product quality and stability. Every batch is tested before leaving the factory. Our ZDHC Level 3 and GOTS certifications guarantee that our chemicals meet international eco-toxicological standards.
We offer custom formulations, working closely with clients to understand their needs and deliver tailored products and services. We actively seek strategic partnerships to expand our reach and enhance our offerings. Let's work together to drive mutual growth.
Environmental protection is central to our R&D. We are committed to providing eco-friendly, high-performance colorants that balance productivity with ecological responsibility, supporting a more sustainable chemical industry.
Zero Discharge of Hazardous Chemicals (ZDHC): This collaborative industry program aims to eliminate hazardous substances across global supply chains. Achieving ZDHC Level 3 shows that Sunrise has implemented robust chemical management, wastewater treatment, and pollution prevention systems.
Global Organic Textile Standard (GOTS): GOTS certification ensures the organic status of textile colorants from raw materials to final processing, confirming that chemical inputs are minimized and that strict environmental and social standards are upheld.
Our logistics and warehousing setups are designed to keep global supply lines running smoothly, handling domestic storage and export shipping efficiently.
Our comprehensive selection of technical acid, sulphur, and direct dyes, formulated for leather, paper, silk, and synthetic fiber applications.
Get answers to common technical, regulatory, and logistics questions about sourcing Solvent Red 146 for your manufacturing processes.
Browse our range of specialty industrial colorants, sulfur dyes, and organic formulations for plastics, paper, and textile processing.
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