Sulphur Brown 4 Chemische Eigenschaften,Einsatz,Produktion Methoden
synthetische
coarse Cresol or m-Cresol and Sodium polysulfide in 270 ~ 275 ℃ calcination, add or do not add Copper sulfate monohydrate all can.
Properties and Applications
brown light olive to yellow brown. Brown hydroscopicity powder. There are dark brown in hydrochloric acid precipitation; In concentrated Sodium hydroxide solution for blue light green. Used for cotton, hemp, viscose and vinylon/cotton blended fabric dyeing, and sometimes also used in leather dyeing.
Standard
|
Acid Resistance
|
Alkali Resistance
|
Light Fastness
|
Fulling
|
Persperation Fastness
|
Soaping
|
Moderate
|
Severe
|
ISO
|
4
|
3
|
3-4
|
4-5
|
|
4
|
3-4
|
Sulphur Brown 4 Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte