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 always highly focus on the goods quality and stability. Each shipment has been tested before sending to the port. Our compliance pathways, certified by ZDHC level 3 and GOTS certificates, guarantee that your quality and regulatory demands are fully met.
We pride ourselves on offering customized solutions. Our team of experts works closely with clients to understand their unique needs and delivers 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.
Solvent Red 25 (commonly referred to as C.I. 26110 or Sudan Red B) is an oil-soluble, disazo-class synthetic dye. Known for its intense, warm red hues and highly robust chemical properties, Solvent Red 25 is synthesized by coupling diazotized aminoazobenzene with beta-naphthol derivatives. This molecular configuration yields exceptional compatibility with lipophilic substances, making it the premier choice for coloring polymeric chains, organic coatings, inks, and fuels.
Unlike water-soluble acid or basic dyes, Solvent Red 25 exhibits strong hydrophobic interactions. Its molecular structure does not contain sulfonic acid or carboxylic acid groups, which are typical of hydrophilic dyes. This feature ensures that the colorant remains highly stable in non-aqueous systems and demonstrates exceptional resistance to leaching, bleeding, and migration when embedded inside plastic matrices.
Corporate buyers seeking an industrial-scale Solvent Red 25 factory look beyond unit price. They evaluate supplier viability based on batch-to-batch consistency, raw material supply security, and chemical purity. Impurities in low-quality solvent dyes can degrade polymer materials during high-temperature injection molding, leading to structural failures in end products.
In masterbatch formulation, uneven particle sizes cause dye aggregation. This results in color streaks on blown films or molded plastics. Sunrise Chem Group implements advanced jet-milling technology to ensure that 99% of our Solvent Red 25 particles fall below 10 microns, optimizing dispersion and pigment efficiency.
Regulatory frameworks, including EU REACH and US TSCA, restrict heavy metals and primary aromatic amines in colorants. Leading consumer packaging and toy brands require that components contain virtually zero toxic impurities. Our factory conducts routine Inductively Coupled Plasma Mass Spectrometry (ICP-MS) tests to confirm that metal impurities are well within regulatory safety limits.
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 brings 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.
In addition to Solvent Red 25, we manufacture a comprehensive selection of acid, basic, direct, and sulphur dyes tailored for industrial coloration:
Solvent Red 25 is a highly versatile coloring agent. It is widely used in polymer processing, mechanical fabrication, fuel marking, and high-performance coatings. At Sunrise Chem Group, we develop tailored solutions designed to meet the specific requirements of each application.
Excellent thermal stability makes Solvent Red 25 ideal for injection molding, film blowing, and fiber spinning. It is compatible with polymers such as PS, PMMA, HIPS, ABS, and rigid PVC. It retains its color integrity without degrading the mechanical properties of the plastic.
In the energy sector, solvent dyes act as essential markers for tax-exempt fuels, heating oils, and machinery lubricants. Solvent Red 25 dissolves rapidly in hydrocarbon fuels, maintaining visibility at low concentrations without forming precipitates that clog filters.
In furniture manufacturing, Solvent Red 25 is used in alcohol- and ester-based wood stains to highlight wood grains. Its excellent penetration properties prevent pigment accumulation, resulting in a smooth finish with strong resistance to UV fading.
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.
Our services extend beyond manufacturing. We manage the entire supply chain, ensuring safe packaging, regulatory compliance, and reliable international shipping.
We not only produce and export dyes and pigments but also prioritize long-term cooperation with our customers, providing services designed to exceed expectations. Here is how we support your business:
Stable Supply: We have developed efficient manufacturing processes to ensure a continuous supply of our products. Our factories feature modern equipment and a skilled workforce, enabling us to fulfill large orders reliably.
Consistent Quality: Our technicians carefully monitor the manufacturing process, ensuring that each batch of dyes is tested for color fastness, durability, and other essential parameters. This guarantees that your products will stand out in the market.
Sustainable production is a core priority at Sunrise Chem. We focus on chemical safety, waste reduction, and clean manufacturing processes.
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 certification indicates that our company has implemented robust chemical management procedures and has met the requirements for chemical handling, wastewater treatment, and pollution prevention.
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.
Find answers to common questions about procuring, testing, and applying Solvent Red 25 in industrial processes.
Our standard industrial batches are guaranteed to have an active dye content of ≥ 98.5%. This high concentration ensures strong tinting strength and helps prevent impurities from affecting the properties of polymer matrices.
It exhibits excellent thermal stability up to 260°C. This makes it suitable for engineering plastics like polystyrene (PS), PMMA, ABS, and styrene-acrylonitrile (SAN) without causing thermal degradation or color shifting.
Solvent Red 25 is highly soluble in aromatic hydrocarbons (xylene, toluene), ketones (MEK, acetone), esters (ethyl acetate), and various organic oils and waxes. It is insoluble in water.
Yes, our manufacturing processes comply with REACH and RoHS standards. We test for heavy metals and restricted aromatic amines to meet international environmental regulations.
Yes, we provide tiered pricing and contract manufacturing discounts for full container load (FCL) orders. Please contact our sales team with your volume requirements for a detailed quotation.
We use spectrophotometer testing to verify color value and shade parameters for every batch. Shipments are approved only when they meet our strict internal standards.
When stored in its original sealed packaging in a cool, dry, well-ventilated warehouse away from direct sunlight, it has a shelf life of 60 months.
Yes, we offer custom packaging configurations (e.g., 25kg drums, bags, or super sacks) and custom physical formulations (e.g., low-dust powders or liquid dispersions) to suit your processing setup.
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