Serving as an essential auxiliary for sulfur black dyes, this environmentally-friendly agent contains no sodium sulfide, requiring combination with sodium hydroxide for sulfur dye applications to prevent premature oxidation reactions. The product utilizes an eco-friendly formulation without sulfide components, providing safer and more environmentally responsible operations while maintaining superior dyeing performance. This advanced composition reduces environmental impact while ensuring consistent protective action throughout the dyeing process, making it an ideal choice for manufacturers seeking sustainable dyeing solutions without compromising quality or effectiveness in their textile processing operations.

Use in combination with sodium hydroxide at addition rates of 15-35% based on dye quantity for optimal protective performance. Before application, completely dissolve the solid anti-oxygen agent in hot water, ensuring full dissolution before adding to the dye bath for uniform distribution.

Maintain dyeing temperature at 70-85℃ with pH levels controlled at 11-13, processing for 40-80 minutes duration. Simultaneous use with appropriate amounts of sodium hydroxide is essential for achieving maximum effectiveness. Throughout the dyeing process, ensure adequate agitation to maintain uniform agent distribution and consistent protective action. Following completion of the dyeing cycle, proceed with conventional washing and oxidation treatments according to standard processing protocols. Proper dissolution and timing are critical for achieving superior protective benefits and consistent dyeing results.

 Extensively utilized in textile dyeing industry sulfur dye processes, particularly excelling in heavy-duty fabric dyeing for denim garments, workwear, and industrial textiles requiring deep coloration. The product plays a crucial role in sulfide-free dyeing systems, making it ideal for manufacturers with strict environmental compliance requirements.

Paper manufacturing applications include specialty black paper production where the agent ensures dye stability throughout processing operations. The formulation demonstrates compatibility with various sulfur dye systems including sulfur black and sulfur blue applications. Leather processing applications utilize the agent to provide oxidation protection for sulfur dyes during treatment procedures. This versatility enables manufacturers to achieve superior dyeing quality across multiple product lines while maintaining environmental responsibility and operational safety throughout various industrial applications requiring reliable oxidation prevention.

Physical appearance: Black powder solid form; pH value: 6-7 (1% aqueous solution); Bulk density: 1.0-1.1 g/cm³ for easy handling; Solubility: Readily soluble in water; Moisture content: ≤5% ensuring stability; Particle fineness: 80-120 mesh for optimal dissolution; Storage period: 24 months under dry storage conditions; Packaging specification: 25kg woven bag containers; Sulfide-free formulation for environmental safety.

Store in dry, well-ventilated locations away from moisture and direct sunlight to maintain product integrity. Personnel must wear dust masks and protective gloves during handling to prevent dust inhalation and direct skin contact for safety.

Essential requirement: Must be used in combination with sodium hydroxide for effectiveness; individual use provides no protective benefits. Keep away from acidic substances and oxidizing agents to prevent adverse reactions. In case of skin contact, rinse thoroughly with clean water and seek medical attention if irritation persists. Waste material disposal must comply with environmental protection requirements and local regulations. During transportation, maintain moisture protection while following general chemical transportation safety protocols to ensure product quality and handling safety throughout storage and distribution operations.