1.sulphur black br 200%,
2.shining -black flake or granule,
3. fast dyeing
4.textile dyeing :good
5.used on cotton ,viscose

we are manufacture of sulphur dyes in china
usage:
    used on cotton ,paper and fiber .
    Sulfur dyes are the most commonly used dyes manufactured for cotton in terms of volume. They are cheap, generally have good wash-fastness and are easy to apply. The dyes are absorbed by cotton from a bath containing sodium sulfide or sodium hydrosulfite and are made insoluble within the fiber by oxidation. During this process these dyes form complex larger molecules which is the basis of their good wash-fastness.
1. fast dyeing ,color  fastness is good  
2..SULPHUR BLACK BR.B 200%
3..property: color fastness ,water fastness,
appearrance:bright- light black grain
standard: 100% as the standard product
moisture: ≤6%
Insoluble matters in the solution of sodium: < 0.3%

our factory is specially produce sulfur black for years ,so the quality of our product is certified.
this is our best advantage,so if you want to got better product ,please feel free to cntact us .