Explore our extensive portfolio of high-purity inorganic pigments, dyes, and chemical auxiliaries manufactured to international directives.
Deep-dive research on polymer molecular coloring dynamics, architectural stability, and synthesis control guidelines.
Solvent Red B (commonly referred to within high-molecular polymer color formulation indexes under similar functional groups like Solvent Red 25 or Solvent Red 24) is a synthetic metal-free organic dye known for its outstanding solubility in organic solvents, plastics, waxes, and resins. Unlike traditional pigments that remain suspended in particulate form within the polymer matrix, Solvent Red B dissolves completely at molecular levels.
This molecular-level dispersion guarantees a high degree of transparency and unmatched brilliance, making it the primary choice for coloring transparent materials such as Polystyrene (PS), Polymethyl Methacrylate (PMMA), Polycarbonate (PC), and Acrylonitrile Butadiene Styrene (ABS). The key to successful application in high-temperature extrusion processing is maintaining the chemical structural integrity of the dye.
When evaluating Solvent Red B, chemical engineers and procurement directors focus on three primary parameters: thermal stability, migration resistance, and lightfastness. Our OEM manufacturing process actively monitors these key indices:
In global production lines, trace impurities can catalyze polymer degradation at high processing temperatures. As a reliable OEM Solvent Red B factory, we employ precise filtration and double crystallization methods to minimize insolubles, ensuring stable performance during masterbatch manufacturing.
| Parameters & Characteristics | Standard Values (Pure Grade) | Testing Methodology Reference |
|---|---|---|
| Heat Resistance (in PS) | 280°C (Min. 5 Minutes) | DIN EN 12877-2 |
| Lightfastness (Full Shade) | Class 7 (Scale 1–8) | ISO 105-B02 |
| Insoluble Content in Toluene | ≤ 0.2% | ASTM D280-81 |
| Moisture Content | ≤ 1.0% | Karl Fischer Titration |
| Free Amine content | ≤ 100 ppm | HPLC Analysis |
By controlling the raw material synthesis route, we keep free heavy metals and unreacted intermediates below international limit values, ensuring compliance with RoHS and REACH regulations.
Key metrics highlighting our manufacturing footprint, supply chain reliability, and global impact.
How we address global supply challenges and support large-scale industrial operations.
Industrial dye procurement requires stable, long-term supply agreements. Tianjin Sunrise Chem Group coordinates with domestic logistics networks and international maritime shipping lines to ensure consistent deliveries without unexpected downtime.
Solvent Red B is vital for masterbatch compounding in engineering plastics. Our technical team works with plastic compounding plants to optimize dispersion and minimize pigment agglomeration in polymer matrices.
We test every batch before it leaves our facility. Our QC team measures color strength, shade deviation, and heat stability, matching shipments to customer reference standards with a target color difference of ΔE < 0.5.
Modern plastics processing demands cleaner chemistry. We support circular manufacturing initiatives by ensuring our Solvent Red B dyes do not degrade or release hazardous components during the mechanical recycling process of colored polymers.
Ensuring compliance is crucial for global market access. Our products meet key chemical regulations, supported by ZDHC Level 3 and GOTS certifications to satisfy international environmental standards.
We tailor our products to match your specific production lines. From standard powder and dust-free granular forms to liquid color concentrates, we adapt physical profiles to fit your mechanical dosing systems.
Decades of manufacturing expertise in high-performance dyestuffs and specialized organic chemical colorants.
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 focus closely on product quality and stability. Each shipment is thoroughly tested before sending to the port. Our ZDHC Level 3 and GOTS certificates provide guaranteed quality assurance for your operations.
We pride ourselves on offering customized solutions. Our team of experts works closely with clients to understand their unique needs, delivering 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.
Cooperating with textile, paper, and polymer mills globally to provide supply chain assurance.
Cooperating with textile and paper mills for many years shows that the factory has established a strong and reliable business relationship. This kind of long-term collaboration can bring numerous benefits, such as consistent orders, shared resources, and mutual support. It also indicates that the factory has a good track record of delivering quality products and meeting the needs of its partners.
Our mission is to drive business growth by providing reliable and customized products. Our goal is to make a significant contribution to our customers' success by consistently delivering first-class products and exceptional customer service. By building lasting partnerships, we strive to be a catalyst for our clients' success.
With years of experience, we have successfully established strong partnerships in many countries. Our dedication to meeting global demands and exceeding customer expectations has earned us a reputation as a reliable supplier worldwide. If you are looking for reliable, high-quality Dyes, we invite you to choose us as your trusted partner.
A closer look at our daily operations, warehouse management, container loading, and production lines.
High-performance chemical colorants catalog with custom application profiles.
High-affinity coloration for natural hide and fibrous structures.
Vibrant, uniform coloration with excellent acid-bath exhaustion.
Deep jet black values with excellent lightfastness and washing resistance.
Specialized fine-grade powder tailored for chemical developer formulations.
High-concentration sulphur dye optimized for robust denim washing cycles.
Clean yellow shade with high solubility and excellent leveling behavior.
High-affinity cellulose bonding, minimizing color runoff in wastewater.
Standard direct dye optimized for packaging board and writing paper tinting.
Inorganic iron oxide pigment with outstanding chemical stability.
Soluble organic nigrosine crystals for ink and plastic compound tinting.
Brilliant yellow dye with outstanding lightfastness on wool and nylon.
Excellent leveling behavior, perfect for dense material substrates.
Acid red dye with superior wet fastness properties on polyamide fibres.
A detailed breakdown of ZDHC Level 3, GOTS, and our eco-friendly chemistry standards.
The ZDHC program is a collaborative effort by leading brands, retailers, and suppliers in the textile and footwear industry to reduce the use of hazardous chemicals. The focus of this certification is on eliminating the release of hazardous chemicals into the environment throughout the entire supply chain.
Achieving ZDHC Level 3 certification (the highest level within the chemical safety gateway framework) indicates that our company has implemented robust chemical management procedures and has met the stringent requirements for chemical handling, wastewater treatment, and pollution prevention. This guarantees that our manufacturing process actively avoids using banned substances.
The Global Organic Textile Standard (GOTS) is a certification that ensures the organic status of textiles from the harvesting of raw materials to environmentally and socially responsible manufacturing. The GOTS certification guarantees that the textiles are made from organic fibers, that chemical inputs are minimized, and that strict environmental and labor standards are met throughout the production process.
GOTS certified products are considered to be sustainable, safe, and ethical. Both certifications are important in the context of sustainable and responsible textile production. ZDHC focuses on the elimination of hazardous chemicals, while GOTS certification guarantees the organic and ethical aspects of the textile production.
Expert technical answers addressing common questions from industrial buyers and polymer engineers.
Premium selection of direct, acid, basic, and sulphur dyes for paper, textile, and industrial coloring applications.
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