Sulphur Black is a key solution in the manufacturing industry, specifically within Chemical raw material and chemical product manufacturing industry and Manufacturing of dyes and pigments. This article explores how INNER MONGOLIA WU XIN CHEMICAL CO. LTD supports professionals with durable, high-performance products, and explains why this product is an ideal choice for businesses in these sectors.
Sulphur Black (C.I. Sulphur Black 1) is a workhorse sulfur dye used to achieve deep, neutral black shades—especially on cellulosic substrates such as cotton and viscose. In the manufacturing of dyes and pigments, it stands out for its high color yield, robust wet fastness, and compatibility with both continuous and batch dyeing methods. Technically, Sulphur Black is applied in reduced (leuco) form and then oxidized on-fiber, creating an insoluble colorant locked into the material. This mechanism provides durable shade build-up and dependable performance across denim, workwear, home textiles, and select paper and leather applications.
In dyes and pigments manufacturing—and downstream textile processing—Sulphur Black is prized for its ability to deliver rich black shades at attractive economics. Typical use cases include denim rope and slasher dyeing, garment dyeing for cotton-rich blends, and piece dyeing for knits and woven fabrics. It is also utilized in certain leather finishing and paper coloration workflows where depth of shade and cost efficiency are priorities. Strong affinity to cellulose and reliable oxidized fixation mean fewer reworks and predictable production, even at high line speeds.
Total cost of ownership for Sulphur Black is driven by dyestuff cost per kilogram, uptake efficiency, right-first-time percentages, and line productivity. Compared with many alternatives, Sulphur Black offers favorable cost-per-shade at industrial scales, especially in continuous dyeing. Proper storage (cool, dry, sealed) maintains product integrity, while accurate reduction and oxidation control reduce off-shade risk and minimize re-dyeing. When process controls are dialed in, mills typically see stable shade reproducibility and fewer stoppages, improving ROI through reduced waste and higher throughput.
Sustainability is reshaping dyes and pigments manufacturing. Regulators and brand ecosystems emphasize safer chemistries, reduced sulfide loadings, and improved effluent profiles aligned with frameworks such as REACH and the ZDHC MRSL. Process-integrated improvements—like low-sulfide or alternative-reduction systems, optimized oxidation, water reuse, and advanced sludge management—are increasingly standard. Digital color control and inline monitoring further decrease variability and resource consumption.
For manufacturers in the Chemical raw material and chemical product manufacturing industry—especially in the Manufacturing of dyes and pigments—Sulphur Black remains a dependable, high-performance choice for deep black shades at scale. With dependable quality and technical backing, INNER MONGOLIA WU XIN CHEMICAL CO. LTD helps B2B decision makers achieve consistent results, better productivity, and competitive cost-per-shade. Ready to optimize your black coloration workflow?
Explore Sustainable Indigo Manufacturing & Dye Industry Trends | Wuxin Indigo
NewsNov.24,2025
Discover Indigo On: Innovative Modular Solutions for Global Sustainability
NewsNov.24,2025
Explore Traditional & Sustainable Indigo Production in India | Eco-Friendly Dye Solutions
NewsNov.23,2025
Indigo Suppliers: Sustainable Dyeing Solutions for Global Textile Industry
NewsNov.23,2025
Instant Indigo – Fast, Eco-Friendly Indigo Dye Solutions for Modern Industry
NewsNov.22,2025
Japanese Indigo Cloth – Sustainable Tradition Meets Modern Textile Innovation
NewsNov.22,2025
Comprehensive Guide to How to Make Blue Dye – Sustainable & Practical Insights
NewsNov.22,2025
Sulphur Black
1.Name: sulphur black; Sulfur Black; Sulphur Black 1;
2.Structure formula:
3.Molecule formula: C6H4N2O5
4.CAS No.: 1326-82-5
5.HS code: 32041911
6.Product specification:Appearance:black phosphorus flakes; black liquid
Bromo Indigo; Vat Bromo-Indigo; C.I.Vat Blue 5
1.Name: Bromo indigo; Vat bromo-indigo; C.I.Vat blue 5;
2.Structure formula:
3.Molecule formula: C16H6Br4N2O2
4.CAS No.: 2475-31-2
5.HS code: 3204151000 6.Major usage and instruction: Be mainly used to dye cotton fabrics.
Indigo Blue Vat Blue
1.Name: indigo blue,vat blue 1,
2.Structure formula:
3.Molecule formula: C16H10N2O2
4.. CAS No.: 482-89-3
5.Molecule weight: 262.62
6.HS code: 3204151000
7.Major usage and instruction: Be mainly used to dye cotton fabrics.