Sulfur Dye Black 1
CAS Number: 1326-82-5
Sulfur Dye Black 1 is the world's most consumed textile colorant, providing deep jet-black shades on cotton and cellulosic fibers at very low cost. Applied by reduction with sodium sulfide, then re-oxidized in air or with oxidizing agents to lock color inside the fiber. The workhorse dye for denim warp yarn, cotton knit, and casualwear black dyeing worldwide.
Technical Specifications
| appearance | Black granules or powder |
| moisture (%) | ≤5 |
| strength (%) | 100±5 |
| active content (%) | ≥60 |
| sodium sulfide content (%) | ≤5 |
| solubility (g/L, with Na2S, 60°C) | ≥60 |
Applications
- Denim warp yarn sulfur black dyeing
- Piece dyeing of cotton knit fabric for deep black
- Continuous pad-steam sulfur dyeing of woven cotton
- Casual cotton garment dyeing in overflow machines
- Cotton sewing thread dyeing for deep black shade
Key Features
- Most cost-effective dye for deep black cotton dyeing globally
- Very high exhaustion rate minimizing dye bath pollution
- Excellent wash and rub fastness for casualwear end uses
- Reduced sulfide grade available for eco-conscious production
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CAS Number
1326-82-5
Category
Textile Dyeing AuxiliariesAvailability
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