Sulphur black br 240% Crude quality

This product possesses outstanding overall dyeing performance, serving as a highly cost-effective sulphur black dye for industrial textile processing. It features excellent dye uptake and superior build-up properties, achieving high color yield at low concentrations. It easily produces a deep, pure black shade, effectively overcoming the gray tone, shallow depth, and poor color saturation associated with conventional sulphur black dyes.

Regarding levelness and reproducibility, Sulphur Black BR maintains a stable strike rate and a gradual color development process, preventing rapid shade loss or sudden darkening during application. It effectively eliminates batch-to-batch shade variations, surface streakiness, and unlevelness, ensuring consistent coloration across large-scale continuous runs. The dye exhibits high penetration depth, thoroughly leveling within the fiber matrix without leaving unfixed surface dye.

Following standard oxidation and soaping procedures, dyed fabrics demonstrate reliable color fastness: washing fastness reaches Grade 4, dry rubbing fastness reaches Grade 3–4, and wet rubbing fastness complies with standard industrial requirements. Finished goods offer strong resistance to laundering, perspiration, and prolonged light exposure without fading or shade shifting. Additionally, its excellent compatibility with other sulphur dyes allows flexible shade matching and gradient dyeing to meet diverse production requirements.

Application Scope

Sulphur Black BR is widely suitable for exhaust dyeing, pad dyeing, and jigger dyeing of cotton yarns, grey fabrics, denim, canvas, workwear, home textiles, and viscose fabrics. It is ideal for high-volume industrial processing of black and dark cellulosic textiles, making it a preferred choice for medium-to-deep black shades in textile dyehouses.

Environmental & Operational Advantages

Manufactured using an upgraded eco-friendly process, Sulphur Black BR features low free sulfur content, reduced odor, and minimized wastewater pollution. The residual dye liquor exhibits a low COD (Chemical Oxygen Demand) value, facilitating effluent treatment and meeting international environmental standards for green textiles. Operating under mild dyeing conditions with broad process adaptability, it requires no specialized equipment and integrates seamlessly into conventional sulphur dyeing production lines to boost efficiency.

Packaging & Storage

Standard packaging consists of 25 kg woven bags or paper bawhich is suitable for long-distance transport. The product should be stored in a dry, cool, and well-ventilated indoor warehouse away from direct sunlight, high temperatures, and humidity. It must be kept isolated from oxidizing agents to ensure long-term stability and maximum shelf life.