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 CAS MF
Sulphur Black 1 Sulphur Black 1 1326-82-5 C6H4N2O5
Benzonitrile Benzonitrile 100-47-0 C7H5N
Sulphur Brown 10 Sulphur Brown 10 1326-51-8
2-Naphthalenesulfonic acid, 5(or 8)-amino-8(or 5)-[(4-hydroxyphenyl)amino]-, reaction products with sodium sulfide (Na2(Sx)) 2-Naphthalenesulfonic acid, 5(or 8)-amino-8(or 5)-[(4-hydroxyphenyl)amino]-, reaction products with sodium sulfide (Na2(Sx)) 1327-69-1
Sulphur Blue 7 Sulphur Blue 7 1327-57-7 C13H14N2O
Sulphur Green  14 Sulphur Green 14 12227-06-4
Sulfur Red Brown B3R Sulfur Red Brown B3R
Sulphur Brilliant Green GB Sulphur Brilliant Green GB
Sulphur Red GGF Sulphur Red GGF
Sulfur Yellow Brown 6G Sulfur Yellow Brown 6G
Sulphur Brown   4 Sulphur Brown 4 1326-90-5
Vulcanizator Vulcanizator
Sulphur yellow 2 Sulphur yellow 2 1326-66-5
Sulphur Red  14 Sulphur Red 14 81209-07-6
IMMEDIAL BRILLIANT GREEN GB IMMEDIAL BRILLIANT GREEN GB 1327-73-7 C22H18N2O4S
Sulphur Yellow   9 Sulphur Yellow 9 1326-40-5
Sulphur Red 6 Sulphur Red 6 1327-85-1
SulphurDyes SulphurDyes
Sulfur Brilliant Green Sulfur Brilliant Green
Sulphur Blue CV Sulphur Blue CV
Sulphur Blue 11 Sulphur Blue 11 1326-98-3
2,5-Cyclohexadien-1-one, 4-[[4-(phenylamino)phenyl]imino]-, reaction products with sodium sulfide (Na2(Sx)) 2,5-Cyclohexadien-1-one, 4-[[4-(phenylamino)phenyl]imino]-, reaction products with sodium sulfide (Na2(Sx)) 1327-59-9
Sulphur Dark Green Sulphur Dark Green
Sulphur Blue BN Sulphur Blue BN
Sulphur Black 6 Sulphur Black 6 1327-16-8
Double Sulphur Black Double Sulphur Black
Sulphur Orange 1 Sulphur Orange 1 1326-49-4
Polysulfurized 4-[(2,4-dinitrophenyl)amino]phenol Polysulfurized 4-[(2,4-dinitrophenyl)amino]phenol 60569-85-9
6 SULPHUR RED 6 6 SULPHUR RED 6
BLACK BO SULPHAR DYES BLACK BO BLACK BO SULPHAR DYES BLACK BO
Sulfur Grass Green Sulfur Grass Green
Sulfur Black Green Sulfur Black Green
Sulfur Black 2BR Sulfur Black 2BR
Sulphur Yellow Brown Sulphur Yellow Brown
Manual Registration Manual Registration 61814-20-8
Vat Blue  43 Vat Blue 43 1327-79-3 C18H12N2O
[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) [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) 67923-45-9 C38H16N4O4S2
N,N'-m-Phenylenedimaleimide N,N'-m-Phenylenedimaleimide C14H8N2O4
Sulphur Blue RN Sulphur Blue RN
Sulphur Black   2 Sulphur Black 2 1326-85-8
10 SULPHUR BROWN 10 10 SULPHUR BROWN 10
Sulphur Grass Green 715 Sulphur Grass Green 715
Sulphur Yellow G Sulphur Yellow G
Sulphur Lemon Yellow Sulphur Lemon Yellow
Sulphur Dark Blue 3R Sulphur Dark Blue 3R
SULPHUR BLACK SULPHUR BLACK
Sulphur Brown 1 Sulphur Brown 1 1326-37-0
Vat Blue  42 Vat Blue 42 1327-81-7
SULPHUR YELLOW GC 250% SULPHUR YELLOW GC 250%
Sulphur Red Brown Sulphur Red Brown
Sulphur Blue 2RN Sulphur Blue 2RN
Sulphur Red  10 Sulphur Red 10 1326-96-1
Sulphur Blue 10 Sulphur Blue 10 1327-62-4
DISPERSE NAVY BLUE EXSF 300% DISPERSE NAVY BLUE EXSF 300%
Sulfur Green (Mixed) Sulfur Green (Mixed)
Solubilised Sulphur Black Solubilised Sulphur Black
Sulphur Brown 5 Sulphur Brown 5 1327-00-0
C.I. SULPHUR BLUE 7 C.I. SULPHUR BLUE 7
Sulfur Dark Brown GN Sulfur Dark Brown GN
Sulphur Brilliant Green F Sulphur Brilliant Green F
Sulfur Blue FBL Sulfur Blue FBL
Sulphur Olive Green Sulphur Olive Green
Sulphur Grass Green G Sulphur Grass Green G
3B 3B
SULPHUR BLUE GREEN CV 100% SULPHUR BLUE GREEN CV 100%
Sulfur Yellow GC Sulfur Yellow GC
(vulcanization) accelrator P (vulcanization) accelrator P
Sulphur Olive Green G Sulphur Olive Green G
Hydrogen sulfide scavenging agent Hydrogen sulfide scavenging agent H2S
Sulphur Grass Green GR Sulphur Grass Green GR
Sulphur Indanthrene Blue RNX Sulphur Indanthrene Blue RNX
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