Dyeing cellulosic fibers such as cotton, jute, and viscose to achieve a consistent, deep black shade requires precise techniques and high-quality dyestuffs. Sulphur Black, known for its excellent affinity for these natural fibers, is a cornerstone in this segment. NINGBO INNO PHARMCHEM CO.,LTD. offers premium Sulphur Black BR 200% designed to help manufacturers optimize their dyeing processes and achieve superior results.


The application of Sulphur Black involves a crucial reduction step, typically using sodium sulfide, to convert the water-insoluble dye into its soluble leuco form. This allows the dye to be absorbed by the cellulosic fibers. Following absorption, an oxidation step regenerates the insoluble dye within the fiber structure, locking in the color and ensuring its renowned fastness properties. Understanding and controlling these stages is key to successful and uniform coloration.


Our Sulphur Black BR 200% for cotton dyeing is formulated for optimal dye-uptake and leveling, minimizing variations in shade across the fabric. This leads to reduced re-dyeing and improved efficiency in production. For textile manufacturers seeking to enhance their processes, NINGBO INNO PHARMCHEM CO.,LTD. provides not just the product but also the technical insights necessary for achieving excellent outcomes in textile dyeing with Sulphur Black dye.


By selecting NINGBO INNO PHARMCHEM CO.,LTD. as your Sulphur Black BR 200% manufacturer, you are choosing a partner dedicated to supporting your operational excellence. We ensure our dyestuffs contribute to high reproducibility and consistent quality, enabling you to produce cellulosic textiles with deep, uniform black shades that stand the test of time and usage, thereby enhancing your product's market value.