Explore our foundational range of highly stable, industrial-grade pigments, direct dyes, and liquid colorants optimized for global manufacturing pipelines.
Tianjin Sunrise Chem Group specializes in manufacturing high-quality dyestuffs. Our comprehensive product portfolio includes Direct dyes, Acid dyes, Basic dyes, Sulphur dyes, Solvent dyes, Liquid dyes, and Fluorescent dyes. Backed by decades of industrial formulation and export experience, we have built a rock-solid global reputation for reliability and excellence, serving clients from diverse sectors including denim processing, textile manufacturing, leather tanning, paper production, and plastic molding.
We highly prioritize goods quality and batch-to-batch stability. Every single shipment undergoes rigorous spectral and chemical testing in our state-of-the-art analytical labs before being dispatched to the port. Our strict compliance protocols and certifications—including ZDHC Level 3 and the Global Organic Textile Standard (GOTS)—ensure that your environmental and quality requirements are completely guaranteed.
We pride ourselves on offering customized colorant solutions. Our team of chemists and technical experts works closely with clients to understand their unique processing parameters and delivers tailored dyestuffs. By actively pursuing strategic supply partnerships, we continuously expand our reach and improve our customer service, providing the perfect balance between economic efficiency and environmental harmony.
An in-depth analysis of C.I. 16255 (Ponceau 4R) chemical behavior, structural characteristics, and laboratory performance markers.
Acid Red 18, chemically designated as trisodium 1-(4-sulfonato-1-naphthylazo)-2-naphthol-6,8-disulfonate (Color Index: C.I. 16255; CAS No: 2611-82-7), is a synthetic anionic azo dye. Commonly referred to in industrial markets as Ponceau 4R, Cochineal Red A, or Brilliant Scarlet 3R, this compound is highly sought after for its vivid red hue and exceptional water solubility.
As a leading Acid Red 18 supplier, Tianjin Sunrise Chem Group utilizes advanced synthesis pathways to ensure low salt content, minimal heavy metal residues, and high color yield. The molecule contains three sulfonic acid groups, imparting strong hydrophilic properties and allowing it to bind effectively with polyamide fibers (wool, silk, nylon) and protein substrates via ionic interactions in acidic dyebaths.
| Technical Parameter | Standard Specification Value |
|---|---|
| Color Index (C.I.) Number | C.I. Acid Red 18 (16255) |
| Chemical Structure Class | Monoazo Anionic Dye |
| Physical Form | Reddish-Brown Granular / Standard Powder |
| Solubility in H2O (25°C) | ≥ 80 g/L |
| Light Fastness (ISO 105-B02) | Grade 5 - 6 |
| Washing Fastness (ISO 105-C06) | Grade 4 |
How raw material integration, location advantages, and automated processing guarantee discount pricing without quality compromise.
Our long-term, direct procurement agreements for crucial intermediates, such as 1-naphthylamine-4-sulfonic acid and R-salt, shield our production lines from market volatility and assure rock-bottom pricing for our global clients.
Leveraging state-of-the-art coupling, crystallization, and drying technology, our factories run standardized processes. This significantly reduces human error, controls waste generation, and maintains a highly consistent chemical structure.
Situated in Tianjin, adjacent to one of China's largest sea ports, our logistics pipeline is streamlined for direct loading and fast maritime shipping. This eliminates internal shipping delays and cuts down freight transit times.
By coordinating with leading textile and paper mills over many decades, we have established a strong and reliable business relationship. This kind of long-term collaboration translates to consistent orders, shared resources, and mutual support. It 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, customized products and first-class customer service.
How Acid Red 18 is deployed across various global sectors to deliver vivid, durable color properties.
Acid Red 18 demonstrates excellent affinity for protein fibers. In a dyebath regulated with acetic or formic acid (pH 4.0 - 5.0), the dye anions bind tightly to the protonated amino groups of the wool and silk fibers, yielding deep scarlet shades with premium levelling and color-fastness.
Used widely in direct addition to the pulp or via surface size presses. Acid Red 18 is prized for its high solubility and lack of precipitation, which avoids fiber clotting and produces highly uniform shades on packaging cardboard and decorative tissues.
In chrome-tanned or vegetable-tanned leather, Acid Red 18 penetrates the collagen cross-links deeply, providing excellent surface coverage, resistance to color bleeding, and high stability during subsequent dry-cleaning and rubbing cycles.
Committed to zero hazardous discharges and organic raw material tracing to facilitate seamless entry into international markets.
Environmental protection is the core driver of our technological innovation. We dedicate ourselves to providing clients with eco-friendly, high-performance colorants that balance productivity with environmental harmony, pushing the textile and chemical sectors towards a greener future.
The ZDHC (Zero Discharge of Hazardous Chemicals) Program is a global, collaborative effort by major brands, retailers, and chemical manufacturers to eliminate the release of hazardous chemicals throughout the supply chain. Achieving ZDHC Level 3 certification demonstrates that Tianjin Sunrise Chem Group has successfully implemented robust chemical management procedures, meeting the most stringent criteria for raw materials, manufacturing processes, and wastewater management.
Simultaneously, the Global Organic Textile Standard (GOTS) certification ensures the organic status of textile products from the harvesting of raw materials to environmentally and socially responsible manufacturing. Our GOTS-compliant dyes guarantee minimized chemical inputs, giving global buyers peace of mind regarding the ecological safety and ethical origin of their sourced materials.
Zero Discharge Compliant
Global Organic Textile
Standard 100 Safe
Quality System Certified
EU Market Entry Approved
With years of export 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 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.
A visual showcase of our warehousing protocols, automated liquid dye processing, and global container loading operations.
Review standard packaging options and application guidelines across our signature chemical ranges.
We not only produce and export dyes and 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.
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.
Get answers to technical questions about chemical properties, environmental compliance, and industrial volume supply chains.
Browse our supplementary direct colorants, specialized liquid dyes, and optical brighteners designed for papermaking and textile mills.
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