Premium selection of customized industrial dyes, cement admixture chemicals, and polymer pigments engineered by Tianjin Sunrise Chem Group.
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.
Quality guarantees: ZDHC Level 3 and GOTS certification define our manufacturing pathways. We always highly focus on the goods quality and stability. Each shipment is meticulously tested before sending to the port.
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.
An in-depth technical analysis of molecular design, synthesis precision, global market applications, and ecological stewardship for enterprise supply chains.
Auramine O Conc, classified under Color Index (C.I.) as Basic Yellow 2 (CAS No. 2465-27-2), is a diarylmethane-class synthetic basic dyestuff characterized by its brilliant yellow hue and high coloristic strength. In its chemical form, it exists as a monohydrochloride salt of tetramethyldiaminobenzophenone imine. Our proprietary Sunrise manufacturing line optimizes the condensation of dimethylaniline and formaldehyde to form tetramethyldiaminodiphenylmethane (Michler's methane), followed by a gas-phase catalytic oxidation utilizing urea and sulfur at optimized temperatures to generate Auramine O with minimal side-product generation.
Standard commercial Auramine O often contains inorganic salts (diluents) such as sodium chloride or dextrin to match lower standard strengths (100%). However, Sunrise specializes in the synthesis of Auramine O Conc, delivering color yields of up to 120%-150% of the industry standard. High concentration reduces chemical shipping volume, minimizes warehousing space, and provides formulators with extreme flexibility when blending or producing liquid dyestuffs. Our dust-free granular/powder options are treated with specific anti-dusting agents to prevent ambient factory contamination, improving clean room safety in paper and textile mills.
| Technical Parameter | Value / Specifications | Testing Protocol Reference |
|---|---|---|
| Chemical Formula | C17H22ClN3 | Molecular Structural Determination |
| Molecular Weight | 303.83 g/mol | Mass Spectrometry |
| C.I. Number | Basic Yellow 2 (C.I. 41000) | Color Index Standard Registration |
| Appearance | Yellow Powder / Granular Crystals | Visual Inspection & Sieve Analysis |
| Color Strength | 100% to 150% (Customizable Conc) | UV-Vis Spectrophotometry (at 432 nm) |
| Moisture Content | ≤ 3.0% | Karl Fischer Titration Method |
| Insoluble Impurities | ≤ 0.5% | Gravimetric Filtration Analysis |
| Solubility in Water | 10 g/L (at 20°C) | Standard Temperature Dissolution Test |
The global dyestuffs market is experiencing a massive shift due to chemical regulations, raw material volatility, and the consolidation of factories. Auramine O Conc remains highly demanded in developing industrial belts—particularly in Southeast Asia (Vietnam, Indonesia, Bangladesh), South Asia (India), and Latin America (Brazil, Mexico). Its high affinity for lignocellulosic substrates makes it irreplaceable in budget-friendly, high-performance paper dyeing. However, stricter enforcement of environmental controls by global bodies has limited the number of active, compliant production factories.
Tianjin Sunrise Chem Group addresses these dynamics through strategic vertical integration. We secure long-term contracts for key precursors (such as dimethylaniline) to insulate our customers from sudden price hikes. Our state-of-the-art production facilities operate with closed-loop recycling systems, ensuring that volatile organic compound (VOC) emissions and solid waste are minimized. By utilizing advanced automated drying and milling systems, we guarantee consistent quality and high batch-to-batch repeatability, which is critical for continuous color formulation processes.
The application range of Sunrise Auramine O Conc spans several key manufacturing domains:
Modern supply chains demand strict adherence to environmental parameters. Traditional basic dye production is scrutinized for wastewater discharges containing heavy metals or persistent aromatic amines. Tianjin Sunrise Chem Group has engineered a comprehensive chemical management system that aligns with the strictest global standards, ensuring our products carry **ZDHC Level 3** (Zero Discharge of Hazardous Chemicals) and **GOTS** (Global Organic Textile Standard) certifications.
For paper and textile mills, utilizing a ZDHC Level 3 certified dye means that the chemical formulation has been independently verified to contain no restricted substances above the defined limits. This drastically reduces the complexity of effluent treatment inside client mills. We employ multi-stage bio-filtration and advanced oxidation processes (AOPs) in our own factory to treat industrial process water, recycling over 75% of water back into the manufacturing cycle. Partnering with Sunrise allows global brands to confidently meet their sustainability targets while maintaining high dye efficiency.
Sunrise is committed to continuous R&D. Our technical roadmap highlights several key milestones for the next decade:
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 comprehensive catalog of water-soluble direct dyes, acid colorants, and sulfur formulations engineered for specialized global paper, leather, and wool processing.
Overview of Sunrise's advanced logistics networks, container shipping operations, and modern chemical storage warehouses.
We not only produce and export dyes, pigments but also prioritize long-term cooperation with our customers, providing them with quality services that exceed their expectations. Allow us to explain why choosing us is the best decision for your business.
One of the main reasons why customers choose us is the stable supply of dyes we provide. We have developed efficient manufacturing processes to ensure a continuous supply of our products. Our factories feature state-of-the-art equipment and a knowledgeable workforce, which enables us to fulfill the most demanding orders. With us, you can begin your manufacturing journey with confidence knowing that dye availability will never be an issue.
Apart from a steady supply, the quality of our dyes is another reason why we stand out in the market. We, SUNRISE CHEM, take pride in our commitment to producing dyes that consistently meet high standards of quality. Our experienced technicians carefully monitor the manufacturing process, ensuring that each batch of dyes is carefully tested for color fastness, durability and other essential parameters. By choosing us, you can rest assured that your products will stand out in the market due to the vibrant and long-lasting color our dyes provide.
We firmly believe in building relationships with our clients based on trust and mutual benefit. We know that our customers' success is our success, so we are committed to providing quality services to meet their needs. Our dedicated customer support team is on hand to address any questions or concerns you may have. We value your feedback and strive to continuously improve our operations to serve you better. Our purpose is not just to supply dyes, but to be your trusted partner in achieving your business goals. By choosing us, you choose a partnership built on reliability, transparency and mutual success.
In a word, when choosing a dye factory with stable supply, high quality and excellent service, we are your best choice. With our attractive range of dyestuffs, coupled with our professional and customer-centric approach, we assure you that your decision to choose us as your preferred dyestuff factory will be a fruitful one. Contact us today and let's embark on a journey to success together.
Comprehensive answers to technical, commercial, and regulatory queries regarding Sunrise Auramine O Conc (Basic Yellow 2) and industrial dye sourcing.
Sunrise Auramine O Conc offers active dye content ranging from 120% up to 150% compared to standard basic formulations. By eliminating excessive salt diluents and using state-of-the-art crystallization methods, we offer a product that dissolves faster, cuts shipping volumes, and delivers higher color yield per kilogram, directly reducing raw material and handling costs.
ZDHC Level 3 is the highest chemical safety certification in the textile and leather industry. It ensures that our manufacturing processes do not release hazardous chemicals into the environment and that the final colorants are free of harmful impurities. Buying ZDHC Level 3 certified products simplifies environmental audits for your mills and guarantees compliance with brand-level restricted substance lists (RSL).
Auramine O performs optimally in slightly acidic conditions (pH 4.5 to 5.5). In alkaline conditions, the dye molecule can undergo hydrolysis, leading to loss of color strength. For paper pulp, it is typically applied at room temperature, while for acrylic fibers, a controlled temperature ramp up to 98°C ensures uniform exhaust and optimal molecular bonding.
Yes, Tianjin Sunrise Chem Group offers customized liquid basic dyes. Liquid solutions are highly stable at room temperature and prevent the dust contamination often associated with handling dry powder dyestuffs, making them ideal for modern continuous automated color kitchen operations.
Every single batch undergoes rigorous spectrophotometric evaluation to confirm color strength limits, HPLC analytics for purity verification, and dissolution residue filtration testing. We retain archive samples from every shipment to guarantee traceabilities and provide full certificates of analysis (CoA) with each delivery.
Premium selection of customized industrial dyes, cement admixture chemicals, and polymer pigments engineered by Tianjin Sunrise Chem Group.
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