Sulfur Dyes
Sulfur dye, a class of dye containing sulfur, has more complex molecular structure. Sulfur dye is generally heated sulfur or sodium sulfide together with certain aromatic amines, amino phenols and other organic compounds, namely vulcanization. Most sulfur dyes are insoluble in water. In dyeing, sulfur dye needs to be dissolved in a sodium sulfide solution or alkaline hydrosulfite solution to reduce to its hidden color, and then absorbed and oxidized by fiber to show color. According to the desired dyeing conditions, sulfur dye can be divided into sulfur dye and sulfide vat dye. The former use sodium sulfide as reducing agent; the latter hydrosulfite as reducing agent, and its fastness and properties is between sulfur dye and sulfide vat dye, so that it is a higher sulfur dye.
In 1873, the initial sulfur dye is made out from melting sodium by Groissant. In 1918, sulfur dye began to be produced in our country, mainly used for plant fiber dyeing. Sulfur dye is characterized by containing a sulfur atom in the molecule, becoming into water-soluble hydrocolloid after the reaction with a reducing agent such as sodium sulfide, dyeing the fibers, and then the dye turns insoluble through the air oxidation. The sulfur dye is not very bright, but generally washable and light fast, enables the fiber brittle. There is also soluble sulfur, which is soluble in water, and more convenient to use. The sulfur dye is a mixture generating from every reaction stage. In 1950, the continuous dyeing method of fine particles of sulfur appeared, but it occurred unsalable after the 1950s, because of the successive appearance of reactive dyes and advanced direct dyes, lightfastness direct dye especially. Still, owe to its budget and other factors, it is still in use.
Sulfur dyes is more popular with rural customers for its relatively simple manufacturing process and low cost, also, it is washable, light fast, not bright shade therefore can be dyed dark, adapted plant fibers and stained. In addition to color is not bright, the dye chromatography insufficiency, lacking of good red and purple, and low color strength, larger dosage, therefore sulfur dyes is limited in application, but so far it still is the largest output and applied widely dyes in China.
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- Structure:
- Chemical Name:
- Sulphur Black 1
- CAS:
- 1326-82-5
- MF:
- C6H4N2O5
- Structure:
- Chemical Name:
- Benzonitrile
- CAS:
- 100-47-0
- MF:
- C7H5N
- Chemical Name:
- Sulphur Brown 10
- CAS:
- 1326-51-8
- Chemical Name:
- 2-Naphthalenesulfonic acid, 5(or 8)-amino-8(or 5)-[(4-hydroxyphenyl)amino]-, reaction products with sodium sulfide (Na2(Sx))
- CAS:
- 1327-69-1
- Chemical Name:
- Sulphur Blue 7
- CAS:
- 1327-57-7
- MF:
- C13H14N2O
- Chemical Name:
- Sulphur Green 14
- CAS:
- 12227-06-4
- Chemical Name:
- Sulfur Red Brown B3R
- Chemical Name:
- Sulphur Brilliant Green GB
- Chemical Name:
- Sulphur Red GGF
- Chemical Name:
- Sulfur Yellow Brown 6G
- Chemical Name:
- Sulphur Brown 4
- CAS:
- 1326-90-5
- Chemical Name:
- Vulcanizator
- Structure:
- Chemical Name:
- Sulphur yellow 2
- CAS:
- 1326-66-5
- Chemical Name:
- Sulphur Red 14
- CAS:
- 81209-07-6
- Structure:
- Chemical Name:
- IMMEDIAL BRILLIANT GREEN GB
- CAS:
- 1327-73-7
- MF:
- C22H18N2O4S
- Chemical Name:
- Sulphur Yellow 9
- CAS:
- 1326-40-5
- Chemical Name:
- Sulphur Red 6
- CAS:
- 1327-85-1
- Chemical Name:
- SulphurDyes
- Chemical Name:
- Sulfur Brilliant Green
- Chemical Name:
- Sulphur Blue CV
- Chemical Name:
- Sulphur Blue 11
- CAS:
- 1326-98-3
- Chemical Name:
- 2,5-Cyclohexadien-1-one, 4-[[4-(phenylamino)phenyl]imino]-, reaction products with sodium sulfide (Na2(Sx))
- CAS:
- 1327-59-9
- Chemical Name:
- Sulphur Dark Green
- Chemical Name:
- Sulphur Blue BN
- Chemical Name:
- Sulphur Black 6
- CAS:
- 1327-16-8
- Chemical Name:
- Double Sulphur Black
- Chemical Name:
- Sulphur Orange 1
- CAS:
- 1326-49-4
- Chemical Name:
- Polysulfurized 4-[(2,4-dinitrophenyl)amino]phenol
- CAS:
- 60569-85-9
- Chemical Name:
- 6 SULPHUR RED 6
- Chemical Name:
- BLACK BO SULPHAR DYES BLACK BO
- Chemical Name:
- Sulfur Grass Green
- Chemical Name:
- Sulfur Black Green
- Chemical Name:
- Sulfur Black 2BR
- Chemical Name:
- Sulphur Yellow Brown
- Chemical Name:
- Manual Registration
- CAS:
- 61814-20-8
- Chemical Name:
- Vat Blue 43
- CAS:
- 1327-79-3
- MF:
- C18H12N2O
- Structure:
- Chemical Name:
- [1,3,8,10-tetrahydro-1,3,8,10-tetraoxoanthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-2,9-diyl]di-m-phenylene bis(thiocyanate)
- CAS:
- 67923-45-9
- MF:
- C38H16N4O4S2
- Structure:
- Chemical Name:
- N,N'-m-Phenylenedimaleimide
- MF:
- C14H8N2O4
- Chemical Name:
- Sulphur Blue RN
- Chemical Name:
- Sulphur Black 2
- CAS:
- 1326-85-8
- Chemical Name:
- 10 SULPHUR BROWN 10
- Chemical Name:
- Sulphur Grass Green 715
- Chemical Name:
- Sulphur Yellow G
- Chemical Name:
- Sulphur Lemon Yellow
- Chemical Name:
- Sulphur Dark Blue 3R
- Chemical Name:
- SULPHUR BLACK
- Chemical Name:
- Sulphur Brown 1
- CAS:
- 1326-37-0
- Chemical Name:
- Vat Blue 42
- CAS:
- 1327-81-7
- Chemical Name:
- SULPHUR YELLOW GC 250%
- Chemical Name:
- Sulphur Red Brown
- Chemical Name:
- Sulphur Blue 2RN
- Chemical Name:
- Sulphur Red 10
- CAS:
- 1326-96-1
- Chemical Name:
- Sulphur Blue 10
- CAS:
- 1327-62-4
- Chemical Name:
- DISPERSE NAVY BLUE EXSF 300%
- Chemical Name:
- Sulfur Green (Mixed)
- Chemical Name:
- Solubilised Sulphur Black
- Chemical Name:
- Sulphur Brown 5
- CAS:
- 1327-00-0
- Chemical Name:
- C.I. SULPHUR BLUE 7
- Chemical Name:
- Sulfur Dark Brown GN
- Chemical Name:
- Sulphur Brilliant Green F
- Chemical Name:
- Sulfur Blue FBL
- Chemical Name:
- Sulphur Olive Green
- Chemical Name:
- Sulphur Grass Green G
- Chemical Name:
- 3B
- Chemical Name:
- SULPHUR BLUE GREEN CV 100%
- Chemical Name:
- Sulfur Yellow GC
- Chemical Name:
- (vulcanization) accelrator P
- Chemical Name:
- Sulphur Olive Green G
- Structure:
- Chemical Name:
- Hydrogen sulfide scavenging agent
- MF:
- H2S
- Chemical Name:
- Sulphur Grass Green GR
- Chemical Name:
- Sulphur Indanthrene Blue RNX