Disperse dyes
Disperse dyes is a class of non-ionic dye, which has low water solubility and exists in water primarily in a highly dispersed state by means of the effect of the dispersing agent in the process of dyeing. It is mainly used for dyeing polyester fibers. The chemical structure of most disperse dyes belong to monoazo type, which accounts for about 80% of all the disperse dyes. And then , anthraquinone accounts for about 15%, and other types of structures about 5%. It is enerally believed that the dyeing mechanism of disperse dye in water is : In dyeing temperature, part of the disperse dyes dissolves into dye molecules in the dye bath by means of the effect of the dispersing agent, and then is adsorbed on the fiber surface in the form of the molecule. At the same time, the amorphous region in poly ester fiber expands to form a hole, which is large enough to accommodate the dye molecules in dyeing temperature. So it is easy to make the dye molecules diffuse in the fiber, and at the end of staining, the previously puffed hole shrinks as the temperature decreases and makes the dye molecules encased within the fiber, so that the dye molecules can eventually form a single molecule or low molecular weight aggregates to be encased within the solid fiber. Foreign scholars believed that the crystal form of disperse dyes (ie, crystalline) impacts its dyeing performance, but the results later denied this claim. However, if the crystalline form of the disperse dyes is different, its lattice energy also will be different. So the crystalline form of the disperse dyes affects their commercialization process.
Disperse dyes can be divided into five series:
(1) E-type disperse dyes : they have good leveling properties, and are suitable for dip dyeing process. Besides, some can be used for thermal transfer printing process.
(2) SE-type disperse dyes: they have general leveling properties and good color fastness to sublimation, and can be used in the dip dyeing and pad-dry-cure dyeing process of the polyester fibers.
(3) S-type disperse dyes: they have high color fastness to sublimation, and are mainly used in the pad-dry-cure dyeing process of the polyester blended fabric.
(4) P-type disperse dyes: they are used for the anti discharge printing of the polyester fibers and cellulose fibers blended fabric.
(5) RD-type disperse dyes: they can be used for the rapid dyeing of the polyester fibers. According to the different molecular structure of the disperse dyes , they can be distribute into azo, anthraquinone, nitrodiphenylamine ,heterocyclic ring and other types. Because of the absence of water-soluble gene, the disperse dyes dissolved in water is minimal.
Disperse dyes are commonly used to dye in two ways, namely high temperature and pressure method and the hot-melt method. The so-called high temperature and pressure method is actually that the temperature is only 130 ℃, and the pressure is only 0.2MPa (gauge pressure). It was so called because other dyes are usually conducted at atmospheric pressure, and the dyeing temperature generally does not exceed 100 ℃. The pad-dry-cure dyeing is always not carried out in water. On the contrary, the dye staining solution should be padded on the surface of the fiber, and then the dried fiber is fed to the 180 ~ 220 ℃ drying room for 30s. In this process ,the dyes sublime to leave the fiber colored. According to this dyeing process, the disperse dyes can be divided into high, medium and low temperature type. And the high-temperature type disperse dyes have the largest molecular weight and the best resistant sublimation fastness.
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- Chemical Name:
- Disperse Black PNR
- Structure:
- Chemical Name:
- Disperse Orange 73
- CAS:
- 40690-89-9
- MF:
- C24H21N5O4
- Structure:
- Chemical Name:
- Disperse Blue 56
- CAS:
- 12217-79-7
- MF:
- C14H9BrN2O4
- Structure:
- Chemical Name:
- Disperse Orange 76
- CAS:
- 13301-61-6
- MF:
- C17H15Cl2N5O2
- Structure:
- Chemical Name:
- DISPERSE YELLOW 49
- CAS:
- 54824-37-2
- MF:
- C21H22N4O2
- Structure:
- Chemical Name:
- Disperse Blue BGL
- CAS:
- 12222-78-5
- MF:
- C20H14N2O5
- Structure:
- Chemical Name:
- Disperse Blue 183
- CAS:
- 2309-94-6
- MF:
- C20H21BrN6O3
- Structure:
- Chemical Name:
- Disperse Red 65
- CAS:
- 12223-38-0
- MF:
- C18H18ClN5O2
- Chemical Name:
- Disperse Orange 29
- CAS:
- 61902-11-2
- MF:
- C19H15N5O4
- Chemical Name:
- C.I. Disperse Blue B press cake
- Chemical Name:
- Disperse Navy Blue RE
- Chemical Name:
- Disperse Red 2GH
- Chemical Name:
- Disperse Black JW
- Chemical Name:
- Disperse Yellow Brown
- Chemical Name:
- Disperse Red 17
- Chemical Name:
- Disperse Blue BS
- Structure:
- Chemical Name:
- DISPERSE BLUE 26
- CAS:
- 3860-63-7
- MF:
- C16H14N2O4
- Chemical Name:
- Disperse Yellow 104
- CAS:
- 12270-42-7
- MF:
- C20H15IN4O2
- Chemical Name:
- Disperse Brown V press cake
- Structure:
- Chemical Name:
- Disperse Yellow 64
- CAS:
- 10319-14-9
- MF:
- C18H10BrNO3
- Structure:
- Chemical Name:
- Disperse Blue 165
- CAS:
- 41642-51-7
- MF:
- C20H19N7O3
- Chemical Name:
- Dispersing agent
- Structure:
- Chemical Name:
- Disperse Red 74
- CAS:
- 61703-11-5
- MF:
- C22H25N5O7
- Structure:
- Chemical Name:
- Disperse Yellow 114
- CAS:
- 61968-66-9
- MF:
- C20H16N4O4S
- Chemical Name:
- Disperse Red 127
- CAS:
- 66795-75-3
- MF:
- C25H21NO6
- Structure:
- Chemical Name:
- Disperse Red 98
- CAS:
- 12223-49-3
- MF:
- C17H20N4O3
- Chemical Name:
- Disperse Violet RN
- Structure:
- Chemical Name:
- Disperse Red 73
- CAS:
- 12270-46-1
- MF:
- C18H16N6O2
- Structure:
- Chemical Name:
- DISPERSE RED 13
- CAS:
- 3180-81-2
- MF:
- C16H17ClN4O3
- Structure:
- Chemical Name:
- Disperse Brown 1
- CAS:
- 23355-64-8
- MF:
- C16H15Cl3N4O4
- Structure:
- Chemical Name:
- Disperse Red 86
- CAS:
- 81-68-5
- MF:
- C22H18N2O5S
- Structure:
- Chemical Name:
- Disperse Blue 291
- CAS:
- 56548-64-2
- MF:
- C19H21BrN6O6
- Chemical Name:
- Disperse Violet 77
- CAS:
- 77538-14-8
- MF:
- C21H24N6O5
- Chemical Name:
- Disperse Blue 143
- CAS:
- 61968-28-3
- MF:
- C22H24N4O4
- Structure:
- Chemical Name:
- Disperse Red 53
- CAS:
- 59787-78-9
- MF:
- C19H19NO6
- Chemical Name:
- C.I. Disperse Blue F press cake
- Chemical Name:
- Disperse Orange 41
- CAS:
- 12217-05-9
- Chemical Name:
- C.I.Disperse Red 50
- MF:
- C17H16ClN5O2
- Chemical Name:
- Disperse Yellow 5GR
- Structure:
- Chemical Name:
- DISPERSE BLACK 1
- CAS:
- 6054-48-4
- MF:
- C16H14N4
- Structure:
- Chemical Name:
- Disperse Orange 29
- CAS:
- 19800-42-1
- MF:
- C19H15N5O4
- Structure:
- Chemical Name:
- 3-[ethyl[4-[(6-nitrobenzothiazol-2-yl)azo]phenyl]amino]propiononitrile
- CAS:
- 25510-81-0
- MF:
- C18H16N6O2S
- Structure:
- Chemical Name:
- 1-amino-4-[(1-methylethyl)amino]anthraquinone
- CAS:
- 62649-65-4
- MF:
- C17H16N2O2
- Chemical Name:
- DISPERSE VIOLET S
- Chemical Name:
- Disperse Yellow FL
- Structure:
- Chemical Name:
- 2-[[4-[(2-cyano-3-nitrophenyl)azo]-m-tolyl](2-acetoxyethyl)amino]ethyl acetate
- CAS:
- 66882-16-4
- MF:
- C22H23N5O6
- Structure:
- Chemical Name:
- Disperse Red 97
- CAS:
- 81367-85-3
- MF:
- C17H16N6O5
- Structure:
- Chemical Name:
- 2-[(2-cyanoethyl)[4-[(6-nitrobenzothiazol-2-yl)azo]phenyl]amino]ethyl acetate
- CAS:
- 68133-69-7
- MF:
- C20H18N6O4S
- Chemical Name:
- Disperse Violet 57
- CAS:
- 61968-60-3
- Structure:
- Chemical Name:
- C.I. 60752
- CAS:
- 72363-26-9
- MF:
- C25H24N2O7S
- Chemical Name:
- Disperse Brown 19
- CAS:
- 71872-49-6
- MF:
- C20H20Cl2N4O6
- Structure:
- Chemical Name:
- 2-[ethyl[3-methyl-4-[(5-nitrothiazol-2-yl)azo]phenyl]amino]ethanol
- CAS:
- 68516-81-4
- MF:
- C14H17N5O3S
- Chemical Name:
- Disperse Yellow 126
- CAS:
- 61968-70-5
- MF:
- C21H24N4O6
- Chemical Name:
- Disperse Yellow 184
- CAS:
- 71838-87-4
- Chemical Name:
- Disperse Rubine B
- Structure:
- Chemical Name:
- Disperse Orange 25
- CAS:
- 31482-56-1
- MF:
- C17H17N5O2
- Structure:
- Chemical Name:
- Disperse Red 153
- CAS:
- 78564-87-1
- MF:
- C18H15Cl2N5S
- Chemical Name:
- Disperse Rubine S-2GFL
- CAS:
- 61968-52-3
- MF:
- C24H26IN5O7
- Structure:
- Chemical Name:
- 5-[(3,4-dichlorophenyl)azo]-1,2-dihydro-6-hydroxy-1,4-dimethyl-2-oxonicotinonitrile
- CAS:
- 83249-52-9
- MF:
- C14H10Cl2N4O2
- Structure:
- Chemical Name:
- 3-[ethyl[3-methyl-4-[(6-nitrobenzothiazol-2-yl)azo]phenyl]amino]propiononitrile
- CAS:
- 16586-42-8
- MF:
- C19H18N6O2S
- Chemical Name:
- Disperse Violet 96
- Chemical Name:
- Disperse Black KSL
- Chemical Name:
- Disperse Orange 2R
- Chemical Name:
- Disperse Brown HRL
- Chemical Name:
- Disperse Black GL
- Chemical Name:
- Disperse Violet 2RB
- Structure:
- Chemical Name:
- 3-Pyridinecarbonitrile, 1,2-dihydro-6-hydroxy-4-methyl-1-3-(1-methylethoxy)propyl-2-oxo-5-4-(phenylazo)phenylazo-
- CAS:
- 85136-74-9
- MF:
- C25H26N6O3
- Structure:
- Chemical Name:
- Disperse Blue 79
- CAS:
- 12239-34-8
- MF:
- C24H27BrN6O10
- Chemical Name:
- Disperse Black RD-2BL(N)
- Structure:
- Chemical Name:
- Disperse Red 82
- CAS:
- 30124-94-8
- MF:
- C21H21N5O6
- Structure:
- Chemical Name:
- Disperse Orange 30
- CAS:
- 12223-23-3
- MF:
- C19H17Cl2N5O4
- Chemical Name:
- Disperse Blue 257
- CAS:
- 84931-03-3
- MF:
- C21H23BrN6O5
- Structure:
- Chemical Name:
- Disperse Blue 87
- CAS:
- 12222-85-4
- MF:
- C20H18N4O4
- Structure:
- Chemical Name:
- Disperse Yellow 3G
- CAS:
- 12223-86-8
- MF:
- C18H10BrNO3
- Chemical Name:
- Disperse Red 135
- CAS:
- 58051-96-0
- MF:
- C27H27N5O7
- Structure:
- Chemical Name:
- Disperse Red 50
- CAS:
- 12223-35-7
- MF:
- C17H16ClN5O2
- Chemical Name:
- Disperse Black 3BL
- Chemical Name:
- C.I. Disperse Blue E press cake
- Structure:
- Chemical Name:
- Disperse Red 73
- CAS:
- 16889-10-4
- MF:
- C18H16N6O2
- Structure:
- Chemical Name:
- DISPERSE BLUE 106
- CAS:
- 12223-01-7
- MF:
- C14H17N5O3S
- Structure:
- Chemical Name:
- Solvent Yellow 114
- CAS:
- 7576-65-0
- MF:
- C18H11NO3
- Structure:
- Chemical Name:
- Disperse Red 177
- CAS:
- 58051-98-2
- MF:
- C20H19N6O4S
- Structure:
- Chemical Name:
- Disperse Blue 301
- CAS:
- 105635-65-2
- MF:
- C21H25BrN6O8
- Structure:
- Chemical Name:
- 4-hydroxy-1-methyl-3-[(3-nitrophenyl)azo]-2-quinolone
- CAS:
- 6439-53-8
- MF:
- C16H12N4O4
- Chemical Name:
- 167 RED 167
- MF:
- C20H22N6O2S;C22H26N6O2S
- Chemical Name:
- Disperse Yellow 235
- CAS:
- 177570-98-8
- Chemical Name:
- Disperse Black BSF
- Chemical Name:
- Disperse Yellow 2G
- Chemical Name:
- Disperse Grass Green GL
- Chemical Name:
- Disperse Violet DP
- Structure:
- Chemical Name:
- Disperse Violet 26
- CAS:
- 6408-72-6
- MF:
- C26H18N2O4
- Chemical Name:
- Disperse Yellow GSL
- Chemical Name:
- Disperse Violet 2RL
- Structure:
- Chemical Name:
- Disperse Blue 60
- CAS:
- 12217-80-0
- MF:
- C20H17N3O5
- Structure:
- Chemical Name:
- Disperse Yellow Se-Fl
- CAS:
- 5124-25-4
- MF:
- C18H15N3O4S
- Chemical Name:
- Disperse Yellow 119
- CAS:
- 57308-41-5
- MF:
- C15H13N5O4
- Chemical Name:
- Disperse Blue 284
- CAS:
- 71872-43-0
- MF:
- C17H19N5O6S
- Structure:
- Chemical Name:
- 4-[(4-nitrophenyl)azo]benzene-1,3-diamine
- CAS:
- 25910-57-0
- MF:
- C12H11N5O2
- Structure:
- Chemical Name:
- 3-[[4-[(2-chloro-4-nitrophenyl)azo]phenyl]ethylamino]propiononitrile
- CAS:
- 40880-51-1
- MF:
- C17H16ClN5O2
- Chemical Name:
- DISPERSE ORANGE 45
- CAS:
- 12223-27-7