High-performance synthetic dyestuffs engineered for textile, paper, leather, and industrial coating sectors.
Tianjin Sunrise Chem Group specializes in manufacturing high-quality dyestuffs, serving as a trusted global manufacturer and exporter. Our extensive product portfolio includes Direct Dyes, Acid Dyes, Basic Dyes, Sulphur Dyes, Solvent Dyes, Liquid Dyes, and Fluorescent Dyes.
Backed by decades of chemical manufacturing expertise and robust export networks, we have established an authoritative presence serving the textile, denim, leather, pulp & paper, and masterbatch plastics industries globally. Our primary commitment rests on product consistency, color fastness excellence, and compliance with the most demanding global standards.
To secure absolute safety and reliable quality, every outbound shipment undergoes batch-to-batch HPLC and spectrophotometer color assessments at our state-of-the-art testing facility. Our compliance with ZDHC Level 3 and GOTS certifications ensures that your supply chain meets the modern sustainability demands of top international retailers.
A comprehensive guide to chemical properties, processing methods, supply chain considerations, and industrial optimization for modern procurement teams.
Direct Pink 12B (historically indexed under Colour Index designation Direct Red 31, CAS Registry Number 5001-72-9) is a disazo-class dye known for its vibrant magenta-to-pink coloration. Its complex organic structure yields high affinity toward cellulosic substrates. The structural properties feature sulfonic acid functional groups which make the molecule highly water-soluble, allowing it to migrate uniformly within aqueous solutions and disperse evenly onto fabrics or pulps.
As a leading OEM supplier, Tianjin Sunrise Chem Group processes this chemical colorant to maximize purity and minimize insoluble residues. By controlling the synthesis route and raw intermediates, we keep heavy metal limits and free arylamine metrics far below international regulatory thresholds, facilitating flawless integration into high-grade textile dyeing and eco-sensitive paper sizing.
The global demand for Direct Pink 12B continues to rise across distinct industrial verticals, driven by several key factors:
Mill Partnerships and Technical Alignment: Working with global textile and paper mills for decades highlights our capacity to develop long-term business relationships. Our collaborative engineering approach ensures that our OEM Direct Pink 12B matches the specific water chemistry, pH conditions, and machinery configurations of our customers' factories.
We supply custom formulations, tailored physical formats (low-dusting powders or concentrated liquids), and specialized packaging (jumbo bags, fiber drums, or liquid IBC tanks) to integrate smoothly into automated dosing systems.
To achieve high-quality results when using Direct Pink 12B, processing teams must focus on specific application parameters:
Environmental regulations like REACH, OKEO-TEX, ZDHC, and GOTS are transforming the chemical colorant industry. Today's procurement managers require sustainable color solutions. Tianjin Sunrise Chem Group address this market need by focusing on ecological innovation.
By optimizing synthesis pathways, we minimize by-products and salt impurities during manufacturing. This helps plants reduce COD (Chemical Oxygen Demand) and BOD (Biochemical Oxygen Demand) in their wastewater treatment facilities, contributing to cleaner operations and a more sustainable future.
A look into our global warehousing, container loading, and industrial project logistics that guarantee timely deliveries worldwide.
Our global commercial footprint spans decades, supported by raw material storage and state-of-the-art chemical synthesis reactors. We manage every step of the supply chain—from bulk chemical formulation to container packing and maritime customs documentation—to ensure a reliable, uninterrupted flow of dyestuffs to your production facilities.
At our testing facility, we examine every batch of Direct Pink 12B to ensure stability and quality. Our quality control protocol measures key performance metrics, including color strength percentage, CIE L*a*b* coordinates, solubility limits, pH, and dusting behavior.
This process minimizes batch-to-batch variation, protecting our clients from color deviations or processing issues on the production line.
ZDHC Level 3 & GOTS Certified
Meeting global restricted substances list (RSL) criteria for eco-responsible chemical management.
Technical and logistics answers from our engineering team to support chemical procurement decision-making.
Expand your sourcing options with our certified direct, solvent, and sulphur dyestuffs.
Sunrise