Explore our industry-standard direct, solvent, sulphur, and basic dye preparations engineered for industrial output.
Decades of Industrial Leadership in Chemical Synthesis and Dyestuff Manufacturing
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. Our expertise in synthesis and customization allows us to respond immediately to changing chemical dynamics and international standards.
We always highly focus on the goods quality and stability. Each shipment has been tested before sending to the port. ZDHC level 3 and GOTS certificate makes your quality guaranteed. This environmental framework ensures that our client-partners can safely satisfy global supply chains without regulatory bottlenecks.
Environmental protection is the cornerstone of our innovation. We dedicate ourselves to provide 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 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.
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.
Understanding the chemical properties, synthesis structure, and grade selections of Basic Yellow 2.
Auramine O (commonly indexed as C.I. Basic Yellow 2 or diarylmethane dyestuff) is a highly specialized cationic dye recognized for its unparalleled brilliance and high color yield in yellow spectrum applications. Industrially synthesized from dimethylaniline and ammonium chloride via key ketone pathways, Auramine O is highly active on acidic substrates, showing profound affinity for lignified fibers, tannic-acid-treated fibers, and basic acrylic polymers.
Technical Quality Check: Commercial Auramine O presents as a yellow crystalline powder or granular structure. Its molecular formula is C17H22ClN3 with a molecular weight of 303.83 g/mol. In solution, it maintains an optimal absorption peak at approximately 430 nm, yielding bright yellow shades that remain highly visible even under low concentration limits.
Tianjin Sunrise Chem Group offers different grades of Auramine O tailored for specific requirements in paper mills, leather tanning yards, and acrylic fiber production. Below is the technical specification breakdown for our premium and standard commercial configurations:
| Technical Parameters | Premium Grade (Paper & Leather) | Standard Industrial Grade | Testing Method |
|---|---|---|---|
| Appearance | Bright yellow powder / Uniform crystals | Yellow powder | Visual Inspection |
| Color Strength (vs. Standard) | 100% ± 3% | 100% ± 5% | Spectrophotometric |
| Moisture Content | ≤ 3.0% | ≤ 5.0% | Oven Drying (105°C) |
| Insolubles in Water | ≤ 0.5% | ≤ 1.0% | Gravimetric Method |
| Solubility (at 90°C) | ≥ 40 g/L | ≥ 30 g/L | Hot Water Filtration |
| Dusting Properties | Low-Dusting formulation available | Regular powder | Tapped density test |
Our synthesis technique ensures the minimization of impurities such as residual dimethylaniline, maintaining strict compliance with occupational exposure and chemical handling guidelines. The basic (cationic) charges of the dye molecule bond ionically with the carboxyl and hydroxyl groups found within cellulose and protein fibers, ensuring high exhaustion rates and low waste load in output effluents.
Addressing raw material volatility, environmental compliance, and supply chain resilience for modern chemical procurers.
Global procurement teams in Europe, South America, and Asia face complex dynamics when sourcing Basic Yellow 2. Regulatory pressures, chemical registration restrictions (such as REACH), and supply chain blockades necessitate a manufacturer that delivers not only high-volume capacity but also absolute compliance and transparency.
The manufacturing cost of Auramine O is closely tied to the prices of key intermediates like Michler’s Ketone and dimethylaniline. By integrating upstream supply networks and maintaining high-capacity stockpiles in Tianjin Sunrise Chem Group's dedicated warehousing centers, we stabilize prices, ensuring our partners are shielded from the wild pricing swings typical of spot chemical markets.
"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."
Different production processes require specific dye formulations. For instance, paper mills running high-speed continuous operations prefer liquid configurations or low-dusting powders to avoid contamination of the plant environment. Textile plants, on the other hand, require exact shade consistency from batch to batch to prevent side-to-side and end-to-end color variation in finished fabrics. We address these requirements by providing tailored adjustments to salt content, solubility parameters, and custom physical form delivery.
Tailored coloring systems utilizing Basic Yellow 2 and associated chemical portfolios.
Auramine O is highly valued in the paper industry for coloring unbleached wood pulp, kraft paper, and wrapping paper. Its outstanding affinity for lignin guarantees maximum dye exhaustion, resulting in intense yellow shades and minimizing chemical discharge in process wastewater.
Utilized as a primary component in acrylic, silk, and tannin-mordanted cotton processing. Basic Yellow 2 yields brilliant hues that are popular for high-impact textiles. Combined with modern auxiliary agents, it satisfies basic wash-fastness and processing demands.
For chrome-tanned or vegetable-tanned leathers, our Auramine O formulations provide excellent leveling, deep penetration, and high solubility, producing uniform, high-saturation yellow tones on a variety of leather grains.
Widely used in the manufacturing of color lakes, solvent ink markers, and basic chemical tracing systems. The stable molecular structure of Basic Yellow 2 makes it suitable for integration into multi-component pigment systems.
Meeting the strict demands of eco-conscious global supply chains.
Regulatory compliance is no longer optional in chemical sourcing; it is a critical requirement. Brands, retailers, and end consumers demand transparency.天津东旭 (Tianjin Sunrise Chem Group) operates in strict alignment with international chemical restriction lists to protect your manufacturing workflow.
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 stringent 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.
Take a look inside our storage facilities and export operations.
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.
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.
Decarbonization, high-fixation development, and smart factory optimization for the next generation of dyes.
As the international community pushes for lower carbon emissions, Tianjin Sunrise Chem Group is actively designing the next phase of our colorant roadmap. Our R&D focuses on three primary developments:
By investing in these chemical advancements, we help our partners stay ahead of regulatory demands, ensuring a seamless transition toward sustainable production processes.
Get answers to technical, logistics, and compliance questions from our support team.
Our standard commercial powder features a color strength of 100% (equivalent to industry standard reference). Custom formulations with higher strengths or tailored salt content can be prepared based on specific requirements.
Every production batch undergoes spectrophotometric evaluation, solubility testing, and color-matching verification against master samples before release. We ship products to ports only after they pass our quality control checks.
Yes. Tianjin Sunrise Chem Group holds ZDHC Level 3 and GOTS organic certifications, confirming that our manufacturing procedures and dye intermediates comply with strict restriction lists for hazardous chemicals.
We supply Auramine O in standard 25kg drums, multi-layer paper bags, or customized super sacks. For liquid preparations, IBC totes and drum container packaging are available to support automated dosing systems.
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