Direct from our chemical synthesis facilities, featuring industry-leading performance and global standards compliance.
Tianjin Sunrise Chem Group stands at the forefront of the global chemical manufacturing industry, specializing in the high-purity synthesis and distribution of premium dyestuffs. Our comprehensive product portfolio spans Direct dyes, Acid dyes, Basic dyes, Sulphur dyes, Solvent dyes, Liquid dyes, and Fluorescent dyes, engineered to meet the stringent demands of complex industrial applications.
Backed by decades of extensive industry and international export experience, we have structured a reputation for engineering reliability and operational excellence. Our high-performance dyes are trusted key components in major industrial sectors worldwide, including denim production, modern textile mills, commercial leather processing, advanced paper manufacturing, and synthetic plastics industries.
Quality assurance and batch-to-batch stability represent the core tenets of our operational philosophy. Each cargo consignment undergoes intensive physical and chemical testing prior to port delivery. With certified compliance to ZDHC Level 3 and GOTS (Global Organic Textile Standard) guidelines, we provide global enterprises with the assurance of environmental compliance and product safety.
An authoritative breakdown of molecular attributes, performance parameters, and chemical structure of copper phthalocyanine-based Direct Blue GL dyes.
Direct Blue GL (chemically classified under the Phthalocyanine group, C.I. Direct Blue 86) is a water-soluble anionic dye characterized by its brilliant cyan-blue hue. Its molecular structure centers around a stable copper phthalocyanine ring system, modified with sulfonic acid sodium salts to achieve optimal solubility in aqueous systems.
Due to the planar, highly conjugated copper phthalocyanine core, Direct Blue GL exhibits outstanding structural resistance against atmospheric degradation, heat, and chemical treatments compared to azo-based direct dyes.
The dye molecules possess high affinity for cellulosic substrates (cotton, viscose, flax, and wood pulp) driven by hydrogen bonding and Van der Waals forces. The planar structure aligns parallel to cellulose microfibrils, facilitating uniform penetration and aggregation within the fiber matrix.
How global industries integrate Direct Blue GL into distinct localized processing pipelines.
Direct Blue GL is extensively applied in paper mills for beater and pulp dyeing of tissue paper, wrapping paper, and decorative boards. The dye ensures uniform leveling and minimal back-water coloration in close-loop water recovery systems. Its high affinity to bleached chemical pulp minimizes the usage of retention aids.
In cotton and viscose processing units, Direct Blue GL is used in exhaust and continuous dyeing processes. By controlling electrolyte concentration (Glauber's salt or Sodium Chloride) and dyebath temperature (optimally 80°C–90°C), mills achieve deep, level shades with outstanding color yield and brilliance.
Applied in chrome-tanned and vegetable-tanned leather drum dyeing, Direct Blue GL shows excellent penetration into leather fibers, avoiding surface bronzing. It serves as a reliable base component for producing rich navy and turquoise leather finishes.
Cooperating with global textile and paper mills for decades highlights our ability to establish robust, dependable business relationships. This long-term collaboration ensures that our production lines run smoothly, providing partners with consistent order fulfillment, shared technological resources, and dedicated mutual support.
Tianjin Sunrise Chem Group leverages advanced chemical synthesis units, raw materials integration, and strategic proximity to major shipping hubs to deliver unbeatable logistics advantages. We maintain a reliable track record of quality consistency, enabling purchasing departments to eliminate secondary testing protocols.
Our core mission is to foster industrial business growth by supplying customized, reliable chemical solutions. By acting as a strategic partner rather than a mere vendor, we assist our clients in optimizing their cost structures and improving product yield in competitive local markets.
Understanding the critical role of ZDHC and GOTS compliance in the modern chemical value chain.
The Zero Discharge of Hazardous Chemicals (ZDHC) program represents a rigorous collaborative standard implemented by global brands and chemical suppliers to eliminate hazardous substances from the textile and footwear manufacturing supply chain. Our ZDHC Level 3 certification guarantees that our dyestuffs, including Direct Blue GL, are synthesized without restricted chemical substances, minimizing environmental impact and ensuring wastewater compliance for processing mills.
GOTS is the world's leading textile processing standard for organic fibers, verifying ecological and social criteria along the entire value chain. Our GOTS certification ensures that our chemical colorants and processing auxiliaries meet strict toxicity and biodegradability criteria. Utilizing GOTS-certified colorants allows manufacturers to export finished textiles to highly regulated European and North American markets with confidence.
A transparent look into our packaging, container loading, and industrial storage workflows.
We do not merely manufacture and export dyes and pigments; we prioritize long-term, trust-based cooperation by executing reliable delivery and quality-assured packaging strategies. Our logistics infrastructure is built to ensure uninterrupted manufacturing runs for our clients worldwide.
Explore our catalog of specialized dyestuffs and pigments developed for targeted industrial coloring needs.
Expert insights regarding chemical specifications, storage guidelines, application rates, and order customization.
Direct Blue GL (often matched with C.I. Direct Blue 86) is a water-soluble copper phthalocyanine tetrasulfonate complex. The presence of coordinated copper within the planar macrocyclic structure gives the dye high stability against degradation by light, heat, and oxygen, while the sodium sulfonate groups provide high solubility in water.
ZDHC Level 3 is achieved by auditing the complete synthesis pathway. This confirms that all raw materials, intermediates, and processes prevent the generation of banned hazardous substances (such as restricted heavy metals, arylamines, and alkylphenol ethoxylates). Regular independent laboratory analysis ensures that impurities remain below parts-per-million (ppm) levels defined by the ZDHC MRSL guidelines.
For optimal pulp dyeing, a pH range of 5.5 to 7.0 (neutral to slightly acidic) is recommended. The addition of sizing agents like AKD or alum should be carefully controlled. Although Direct Blue GL is highly substantive, maintaining a temperature of 20°C to 40°C in the stock preparation tank ensures balanced exhaustion and consistent sheet shade.
We provide tailormade liquid preparations for automated dosing systems in large paper mills and textile houses. Please contact our laboratory with your dry weight specifications, concentration targets (e.g., 20%, 30% active ingredient), and viscosity parameters. We will adjust the formulation with eco-friendly biocides and stabilizers to optimize shelf-life stability.
Our standard MOQ for commercial orders is 1,000 kg. Standard packaging options include 25 kg multi-layer iron drums, carton boxes with polyethylene liners, or 500 kg/1000 kg bulk bags. For liquid formulations, we supply 1000L IBC tanks. Custom branding and packaging are available upon request.
Partner with Tianjin Sunrise Chem Group to ensure chemical purity, stable batch supply, and ZDHC/GOTS compliance. Our engineers are ready to assist you with custom shade matching and dye house integration.
Contact Our Technical SpecialistsComplete your supply chain requirements with our certified selection of chemical colorants.
Sunrise
