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A comprehensive analysis of Direct Red 224 chemistry, application metrics, and sustainable processing properties.
Direct Red 224 (often recognized under regional commercial designations such as Direct Fast Red F-2G or Direct Scarlet T-2B) is a highly efficient, water-soluble polyazo dyestuff developed specifically for cellulosic materials. As a key colorant in modern textile, pulp and paper, and leather processing, Direct Red 224 is characterized by its high exhaustion rate, excellent leveling properties, and vibrant, true-red chromatic profile. It eliminates the need for complex, heavy-metal mordants, offering a direct affinity to cellulose fibers via hydrogen bonding and Van der Waals forces.
| Technical Property | Standard Value / Description | Industrial Relevance |
|---|---|---|
| Chemical Class | Azo / Polyazo Direct Dye | High affinity to hydroxyl-rich substrates without mordants. |
| Appearance | Reddish Brown / Red Uniform Powder | Standardized physical state for dust-free dosing. |
| Water Solubility | ≥ 30 g/L (at 80°C) | Prevents specking and ensures uniform solution migration. |
| Lightfastness (ISO 105-B02) | 4 - 5 | Resistant to photo-degradation, suitable for casual garments. |
| Washfastness (ISO 105-C06) | 3 - 4 (Improves with cationic fixatives to 4-5) | Meets standard apparel retail wash requirements. |
| Recommended Dye Temp. | 90°C - 98°C | Optimal thermodynamic equilibrium for fiber penetration. |
Understanding the mechanical properties of Direct Red 224 is critical for process engineers. The dye's molecular design incorporates sulfonic acid sodium salt groups, rendering it anionic in aqueous solutions. During the dyeing process, the addition of electrolyte salts (such as sodium sulfate or sodium chloride) neutralizes the negative surface charge of cellulose, allowing the dye molecules to align, diffuse into the amorphous regions of the fiber, and form strong intermolecular linkages. This leads to exceptional depth of shade and a bright, vivid finish that is stable across multiple processing conditions.
Tianjin Sunrise Chem Group specializes in manufacturing high-quality dyestuffs. Our extensive catalog includes 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.
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. 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.
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.
Meeting global chemical standards and local regulatory frameworks for seamless international sourcing.
Our manufacturing facilities run strictly under Zero Discharge of Hazardous Chemicals (ZDHC) Level 3 and Global Organic Textile Standard (GOTS) guidelines to ensure zero harmful residue in our dye formulations.
We provide comprehensive REACH documentation and analytical certificates (COA, MSDS) for European Union markets, reducing tariff and customs friction to zero.
With localized service networks in Southeast Asia, South America, and Europe, our technical team offers troubleshooting, shade-matching, and recipe optimization directly on-site.
Why sourcing Direct Red 224 from Tianjin Sunrise Chem Group ensures economic resilience and supply continuity.
The global dyestuff supply chain faces regular disruptions due to fluctuations in raw material intermediates, environmental regulations, and shipping logistics. Sourcing Direct Red 224 directly from our Chinese manufacturing hub grants your enterprise several competitive advantages:
We control the synthesis from basic aromatic intermediates up to final drying stages, insulating our partners from wild raw material price hikes.
Strategically located near Tianjin Port, we reduce inland transit times and guarantee immediate booking opportunities for sea freight.
Equipped with state-of-the-art biological water treatment units, our plant complies with China’s national green policies, eliminating environmental shutdown risks.
Our warehousing facilities hold consistent safety stocks of standardized Direct Red 224 powder and liquid forms. By maintaining strong connections with international container lines, we reduce shipment lead times to as short as 7 to 14 days from order confirmation to port loading.
Addressing the specific demands of bulk industrial buyers, textile mills, and chemical distributors worldwide.
Industrial procurement departments prioritize color fastness, batch continuity, and price-to-performance ratios when selecting an OEM manufacturer. At Tianjin Sunrise Chem Group, we cater to these priorities with a systematic QA protocol. We analyze every batch via computerized spectrophotometers (Datacolor systems) to ensure color variance remains within the strict Delta E < 0.5 threshold. This level of control prevents differential shading in continuous textile runs and pulp operations, minimizing expensive product rejections for our clients.
Moreover, global buyers increasingly require flexible packaging and formulation configurations. We supply Direct Red 224 in multiple options, including customized concentration levels (ranging from 100% standard strength up to 200% concentrated forms) adjusted with eco-friendly diluents. Packaging choices range from 25kg standard iron drums and multi-layer paper bags to 500kg bulk bags designed for automatic dosing systems.
Deep-dive application protocols across textile, pulp & paper, and leather coloring industries.
Ideal for Exhaust and Pad dyeing processes. Its deep molecular penetration provides bright red shades on cotton knits, viscose linings, and linen blends. It functions well under neutral or slightly alkaline conditions (pH 7-8) at temperatures from 95°C to 98°C, using glauber salt as an exhausting agent.
Widely integrated into tissue paper, packaging boards, and fine cover papers. Direct Red 224 exhibits excellent affinity to bleached or unbleached chemical and mechanical wood pulp. The dye can be added directly to the hydrapulper or machine chest, showing high retention without requiring extensive sizing agents.
Utilized in drum dyeing and spray-coating formulations for chrome-tanned and vegetable-tanned leathers. It yields rich, level scarlet hues on shoes, garments, and upholstery leathers, maintaining flexibility and resisting migration when exposed to heat and sweat.
To maximize performance in every localized scenario, we recommend using a customized cationic dye-fixing agent during post-dyeing treatment. This step locks the Direct Red 224 molecules deeper inside the fiber matrices, shifting the overall wet fastness and washing fastness to higher levels, fulfilling the demanding standards of top-tier apparel brands.
How the market is evolving toward zero-carbon processes and how Sunrise is leading the shift.
The global dyestuff sector is undergoing a major transition driven by climate goals and chemical safety regulations. Low-temperature dyeing, salt-free formulations, and zero-discharge production have shifted from optional premiums to baseline industry expectations. Textile brands now demand colorants free of restricted arylamines and endocrine disruptors. Sunrise Chem actively monitors these shifts, investing in R&D to optimize our Direct Red 224 manufacturing line.
By using synthetic pathways that reduce by-product salts and optimize thermal energy recovery, we lower the carbon footprint per ton of dye. Additionally, we are developing liquid-form direct dyes to help mills eliminate dust handling hazards, simplify dosing, and reduce energy consumption during dye dissolution.
A transparent look at our warehousing capabilities, shipping preparations, and bulk operations.
Our logistics and supply chain systems are built for long-term consistency. One of the main reasons customers choose us is this stable supply of dyes. 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.
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.
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.
Answering key questions asked by procurement professionals and chemical technicians.
Direct Red 224 is a polyazo dye formulated to achieve high leveling and migration properties at high temperatures. Unlike standard monoazo red dyes, it provides a deeper shade depth on cellulosic fibers with fewer electrolytic salts, reducing overall processing costs.
Yes, our Direct Red 224 matches ZDHC Level 3 and GOTS requirements. It is free from banned amines, heavy metals, and alkylphenol ethoxylates (APEOs), making it compliant with top retail brand regulations.
We offer customized purity levels, specialized packaging (e.g., water-soluble bags, direct-dosing cartons), and liquid-form formulations. Additionally, we provide custom shade-matching services based on spectrophotometer curves to meet your specific target shade.
We perform strict quality control testing on every batch before it leaves the factory. Using spectrophotometric analysis, we verify that the color coordinates fall within a strict Delta E < 0.5 range compared to the standard master sample.
For standard orders, our warehouse dispatch time is 7 to 14 days. We schedule weekly shipments through Tianjin Port, which minimizes logistics delays and ensures reliable delivery schedules to major international ports.
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