High-performance coloring solutions engineered to match demanding application parameters across plastic, paper, and textile industries.
Solvent Red 111 (also classified under Disperse Red 9, CAS 82-38-2) is a synthetic anthraquinone dye recognized globally for its superior thermodynamic and structural characteristics. Its chemical structure features a methylamino-substituted anthraquinone skeleton, giving it a vibrant red hue with high chroma and tinting strength. It is widely recognized as a benchmark colorant for thermoplastics due to its exceptional thermal stability and compatibility with high-performance polymers.
Unlike conventional organic pigments, Solvent Red 111 exhibits excellent solubility in molten polymers. When processed above the resin's melting point, it forms a molecularly dispersed solution inside the polymer matrix. This molecular dissolution eliminates issues related to particle agglomeration, resulting in high optical clarity and uniform color distribution. It is particularly well-suited for high-precision injection-molded components made of polymethyl methacrylate (PMMA), polystyrene (PS), polycarbonate (PC), and polyethylene terephthalate (PET).
As a leading supplier, we prioritize optimizing the physical and chemical properties of Solvent Red 111. Through advanced crystallization and purification techniques, we keep the volatile organic content and insoluble ash to a minimum. This ensures consistent color matching and prevents filter clogging in spin-dyeing and masterbatch extrusion processes.
To demonstrate the unique value of Solvent Red 111, the table below compares its performance with alternative plastic colorants under industrial conditions:
| Performance Metrics | Solvent Red 111 (Disperse Red 9) | Pigment Red 254 (DPP Red) | Solvent Red 135 (Perinone Red) |
|---|---|---|---|
| Thermal Stability (°C) | 280°C - 300°C | 290°C | 300°C - 320°C |
| Light Fastness (Blue Wool Scale) | 7 - 8 (Excellent) | 8 (Outstanding) | 7 - 8 (Excellent) |
| Migration Resistance (PS/PMMA) | Grade 5 (No migration) | Grade 4-5 (Slight bleed risk) | Grade 5 (Excellent) |
| Optical Transparency | Highly Transparent (Soluble) | Opaque / Semi-Transparent | Transparent (Soluble) |
| Acid / Alkali Resistance | Excellent / Stable | Excellent | Good / Medium-stable |
| Key Use Case | PS, PMMA, SAN, PC, ABS, Masterbatches | PVC, Polyolefins, Industrial Coatings | PET, PA6/66, Engineering Plastics |
Tianjin Sunrise Chem Group specializes in manufacturing high-quality dyestuffs, including 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 from diverse sectors including denim, textile, leather, paper, and plastic.
We highly focus on product quality and stability. Every batch is tested before leaving the factory. Our ZDHC level 3 and GOTS certificates guarantee our commitment to environmental compliance and performance standards.
We pride ourselves on offering customized solutions. Our team of experts works closely with clients to understand their unique needs and deliver tailored products and services. We actively seek strategic partnerships to expand our reach and enhance our offerings. Collaborate with us to explore mutual growth opportunities.
Environmental protection is the cornerstone of our innovation. We dedicate ourselves to providing clients with eco-friendly, high-quality colorants that balance productivity with environmental harmony, driving the industry towards a more sustainable development path while delivering high-performance products—for a greener textile industry and a sustainable future.
We build lasting, mutually beneficial relationships with textile mills, paper manufacturers, and polymer compounders, ensuring reliable quality control and supply chain stability.
Key market drivers and compliance requirements for international procurement managers in the masterbatch and compounding sectors.
Regulatory frameworks like EU REACH, US TSCA, and RoHS demand colorants with low levels of free primary aromatic amines and heavy metals. Modern compounders require suppliers to provide comprehensive certification showing compliance with these standards, ensuring safety in consumer goods and packaging.
The growth of engineering plastics like Polycarbonate and PET co-polymers has pushed processing temperatures past 280°C. Sourcing thermally stable dyes like Solvent Red 111 prevents thermal degradation, which can lead to color shifting, loss of transparency, and mechanical degradation of the polymer matrix.
For applications like optical lenses, light guide panels, and transparent consumer packaging, particulate scattering must be avoided. Solvent Red 111 dissolves molecularly, offering excellent clarity and light transmission that pigment dispersions cannot match.
Depending on the region and the target industry, Solvent Red 111 is utilized in specific polymer formulations:
How advanced chemical manufacturing automation is reshaping the production of premium dyestuffs.
At Tianjin Sunrise Chem Group, we utilize modern automated manufacturing technologies. Our production lines feature integrated Distributed Control Systems (DCS) that monitor chemical synthesis in real time. By automating key parameters like temperature, pH, reaction pressure, and feed rates, we reduce human error and achieve high batch-to-batch consistency.
This automated approach directly improves supply chain resilience. During periods of fluctuating raw material costs or environmental audits, our efficient resource utilization keeps production steady. We also use advanced membrane separation and automatic drying technologies to lower energy use while maintaining the purity of our Solvent Red 111.
Additionally, our automated warehouses and close proximity to the Port of Tianjin enable fast shipping and reliable logistics. We manage our inventory dynamically to protect customers from global transport delays and supply shocks.
A look into our warehousing, liquid packaging, and container loading processes that ensure safe delivery to international ports.
The textile and plastics industries are shifting toward stricter environmental and chemical safety standards. Our manufacturing processes conform to the ZDHC (Zero Discharge of Hazardous Chemicals) Roadmap to Zero program.
Achieving ZDHC Level 3 certification, the highest level of compliance, indicates that our chemical formulations and production processes prevent the intentional use of restricted substances. This protection extends across the entire supply chain, protecting workers, local ecosystems, and end consumers.
Additionally, our Global Organic Textile Standard (GOTS) certification guarantees the organic integrity of our textile colorants. GOTS certification ensures strict environmental and social criteria are met, from the processing of raw materials to final packaging. By choosing certified colorants, manufacturers can confidently serve brands that prioritize sustainability and safety.
High-purity acid, direct, and inorganic colorants for leather, paper, silk, and wool application processes.
Detailed technical answers to common queries raised by quality assurance engineers and procurement officers regarding Solvent Red 111.
High-purity dyes and pigments manufactured for export, supporting global industrial applications.
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