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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- Structure:
- Chemical Name:
- 1-AMINO-2-METHYLANTHRAQUINONE
- CAS:
- 82-28-0
- MF:
- C15H11NO2
- Structure:
- Chemical Name:
- Disperse Red 11
- CAS:
- 2872-48-2
- MF:
- C15H12N2O3
- Structure:
- Chemical Name:
- Disperse Blue 3
- CAS:
- 2475-46-9
- MF:
- C17H16N2O3
- Structure:
- Chemical Name:
- Disperse Yellow 3
- CAS:
- 2832-40-8
- MF:
- C15H15N3O2
- Structure:
- Chemical Name:
- Disperse Yellow 54
- CAS:
- 12223-85-7
- MF:
- C18H11NO3
- Structure:
- Chemical Name:
- DISPERSE ORANGE 13
- CAS:
- 6253-10-7
- MF:
- C22H16N4O
- Structure:
- Chemical Name:
- Disperse Red 54
- CAS:
- 12217-86-6
- MF:
- C19H18ClN5O4
- Chemical Name:
- Disperse Black Crude for Sublimation Ink
- Structure:
- Chemical Name:
- Disperse Orange 44
- CAS:
- 12223-26-6
- MF:
- C16H11ClN6O2
- Structure:
- Chemical Name:
- DISPERSE BLUE 102
- CAS:
- 12222-97-8
- MF:
- C15H19N5O4S
- Structure:
- Chemical Name:
- DISPERSE YELLOW 9
- CAS:
- 6373-73-5
- MF:
- C12H10N4O4
- Structure:
- Chemical Name:
- Disperse Orange 61
- CAS:
- 12270-45-0
- MF:
- C17H15Br2N5O2
- Structure:
- Chemical Name:
- Disperse Violet 28
- CAS:
- 81-42-5
- MF:
- C14H8Cl2N2O2
- Chemical Name:
- DISPERSE VIOLET B
- MF:
- C26H18N2O4
- Structure:
- Chemical Name:
- Disperse Red 179
- CAS:
- 61951-64-2
- MF:
- C19H18N6O2S
- Structure:
- Chemical Name:
- DISPERSE ORANGE 1
- CAS:
- 2581-69-3
- MF:
- C18H14N4O2
- Structure:
- Chemical Name:
- Disperse Yellow 211
- CAS:
- 86836-02-4
- MF:
- C15H12ClN5O4
- Structure:
- Chemical Name:
- Disperse Blue 77
- CAS:
- 20241-76-3
- MF:
- C20H12N2O6
- Chemical Name:
- DISPERSE BLUE 35
- CAS:
- 12222-75-2
- MF:
- N/A
- Structure:
- Chemical Name:
- Disperse Red 91
- CAS:
- 12236-10-1
- MF:
- C20H21NO5
- Structure:
- Chemical Name:
- Disperse Yellow 163
- CAS:
- 71767-67-4
- MF:
- C18H14Cl2N6O2
- Structure:
- Chemical Name:
- Disperse Red 54
- CAS:
- 6021-61-0
- MF:
- C19H18ClN5O4
- Chemical Name:
- Disperse Red 200
- Chemical Name:
- Disperse Yellow HG
- MF:
- C16H12N4O4
- Chemical Name:
- Disperse Black GI
- Structure:
- Chemical Name:
- Disperse Blue 27
- CAS:
- 15791-78-3
- MF:
- C22H16N2O7
- Structure:
- Chemical Name:
- SUPRACET BRILLIANT RED BD
- CAS:
- 6373-93-9
- MF:
- C18H20N4O3S
- Structure:
- Chemical Name:
- 2-[N-(2-Cyanoethyl)-4-[(2,6-dichloro-4-nitrophenyl)azo]anilino]ethyl acetate
- CAS:
- 5261-31-4
- MF:
- C19H17Cl2N5O4
- Structure:
- Chemical Name:
- DISPERSE BLACK 9
- CAS:
- 12222-69-4
- MF:
- C16H20N4O2
- Structure:
- Chemical Name:
- DISPERSE BLACK 9
- CAS:
- 20721-50-0
- MF:
- C16H20N4O2
- Structure:
- Chemical Name:
- DISPERSE BLUE 124
- CAS:
- 61951-51-7
- MF:
- C16H19N5O4S
- Structure:
- Chemical Name:
- DISPERSE VIOLET 17
- CAS:
- 12217-92-4
- MF:
- C14H8BrNO3
- Structure:
- Chemical Name:
- Disperse Red 72
- CAS:
- 12223-39-1
- MF:
- C20H18N6O4
- Structure:
- Chemical Name:
- Disperse Red 92
- CAS:
- 12236-11-2
- MF:
- C25H24N2O7S
- Structure:
- Chemical Name:
- Disperse Orange 5
- CAS:
- 6232-56-0
- MF:
- C15H14Cl2N4O3
- Structure:
- Chemical Name:
- DISPERSE YELLOW 82
- CAS:
- 12239-58-6
- MF:
- C20H19N3O2
- Structure:
- Chemical Name:
- Disperse Yellow brown Se-4br Wet Cake
- CAS:
- 51811-42-8
- MF:
- C17H15Cl2N5O2
- Chemical Name:
- DISPERSE BROWN
- Chemical Name:
- Disperse Orange 3GL
- Chemical Name:
- Disperse Grey BL
- Chemical Name:
- Disperse Blue 3GR
- Chemical Name:
- DISPERSE BLUE 359
- Chemical Name:
- Disperse Yellow 79
- CAS:
- 12236-36-1
- Structure:
- Chemical Name:
- Disperse Violet 63
- CAS:
- 64294-88-8
- MF:
- C19H19ClN6O3
- Chemical Name:
- Disperse Grey N
- Structure:
- Chemical Name:
- Disperse Red 1
- CAS:
- 2872-52-8
- MF:
- C16H18N4O3
- Structure:
- Chemical Name:
- DISPERSE RED 60
- CAS:
- 12223-37-9
- MF:
- C20H13NO4
- Structure:
- Chemical Name:
- DISPERSE RED 4
- CAS:
- 2379-90-0
- MF:
- C15H11NO4
- Structure:
- Chemical Name:
- Disperse Brown 1
- CAS:
- 12236-00-9
- MF:
- C16H15Cl3N4O4
- Chemical Name:
- Disperse Orange 73
- CAS:
- 79300-11-1
- MF:
- C24H21N5O4
- Chemical Name:
- DISPERSE BLACK.
- Chemical Name:
- C.I. Disperse Red 50
- Structure:
- Chemical Name:
- DISPERSE BLUE 1
- CAS:
- 2475-45-8
- MF:
- C14H12N4O2
- Structure:
- Chemical Name:
- Disperse Orange 31
- CAS:
- 61968-38-5
- MF:
- C19H19N5O4
- Chemical Name:
- Disperse Red 343
- CAS:
- 99035-78-6
- MF:
- C20H22N6O2S
- Chemical Name:
- Disperse Blue 3G
- Structure:
- Chemical Name:
- 4-[4-(PHENYLAZO)PHENYLAZO]-O-CRESOL
- CAS:
- 6300-37-4
- MF:
- C19H16N4O
- Structure:
- Chemical Name:
- DISPERSE BLUE 7
- CAS:
- 3179-90-6
- MF:
- C18H18N2O6
- Chemical Name:
- Disperse Blue 93
- CAS:
- 12235-95-9
- Structure:
- Chemical Name:
- Disperse Red BFL
- CAS:
- 12223-43-7
- MF:
- C22H18N2O5S
- Structure:
- Chemical Name:
- Disperse Red 5
- CAS:
- 3769-57-1
- MF:
- C17H19ClN4O4
- Structure:
- Chemical Name:
- p-[[p-(phenylazo)phenyl]azo]phenol
- CAS:
- 6250-23-3
- MF:
- C18H14N4O
- Chemical Name:
- C.I.Disperse Yellow 71
- Structure:
- Chemical Name:
- Disperse Blue 81
- CAS:
- 12222-79-6
- MF:
- C14H9BrN2O4
- Structure:
- Chemical Name:
- DISPERSE VIOLET 26
- CAS:
- 12217-95-7
- MF:
- C26H18N2O4
- Chemical Name:
- Disperse Orange 47
- CAS:
- 12236-03-2
- Chemical Name:
- Disperse Red 221
- CAS:
- 64426-35-3
- Chemical Name:
- Disperse Red 146
- CAS:
- 59763-30-3
- MF:
- C21H15NO5
- Structure:
- Chemical Name:
- Disperse Yellow 56
- CAS:
- 54077-16-6
- MF:
- C21H15N5O2
- Structure:
- Chemical Name:
- DisperseYellow39
- CAS:
- 12236-29-2
- MF:
- C17H16N2O
- Chemical Name:
- Disperse Red BLS
- Chemical Name:
- Disperse Red FBL
- Chemical Name:
- Disperse Orange 288
- Structure:
- Chemical Name:
- 3-[(2-hydroxyethyl)[4-[(4-nitrophenyl)azo]phenyl]amino]propiononitrile
- CAS:
- 6657-32-5
- MF:
- C17H17N5O3
- Structure:
- Chemical Name:
- Disperse Violet S press cake
- CAS:
- 75575-40-5
- MF:
- C13H14ClN5O4S
- Chemical Name:
- Disperse Blue FG
- Chemical Name:
- DISPERSE BLUE 281
- Structure:
- Chemical Name:
- DISPERSE RED 17
- CAS:
- 3179-89-3
- MF:
- C17H20N4O4
- Chemical Name:
- disperse Navy Blue 6G
- Chemical Name:
- Disperse Blue 359
- Chemical Name:
- DISPERSE GREEN
- Chemical Name:
- Disperse Brown 3R
- Structure:
- Chemical Name:
- C.I. Disperse Blue A press cake
- CAS:
- 88102-88-9
- MF:
- C16H20N6O6S
- Structure:
- Chemical Name:
- Disperse Orange 44
- CAS:
- 4058-30-4
- MF:
- C18H15ClN6O2
- Chemical Name:
- Disperse Black 3G
- Chemical Name:
- Disperse Blue 5R
- Chemical Name:
- Disperse Yellow GL
- Chemical Name:
- Disperse Violet RB
- Chemical Name:
- Disperse Violet R
- Chemical Name:
- Disperse Black ECY
- Structure:
- Chemical Name:
- Disperse Blue 72
- CAS:
- 12217-81-1
- MF:
- C21H15NO3
- Structure:
- Chemical Name:
- Disperse Blue 148
- CAS:
- 61968-29-4
- MF:
- C19H19N5O4S
- Chemical Name:
- Disperse Red 277
- CAS:
- 70294-19-8
- MF:
- C23H19N5O
- Structure:
- Chemical Name:
- 3-[[2-(acetyloxy)ethyl][4-[(4-nitrophenyl)azo]phenyl]amino]propiononitrile
- CAS:
- 68391-42-4
- MF:
- C19H19N5O4
- Chemical Name:
- DISPERSE NAVY BLUE EXSF 300% & BLUE 56 100%
- Chemical Name:
- Disperse Blue GB
- Chemical Name:
- Levelling and dispersing agent
- Structure:
- Chemical Name:
- Disperse Red 60
- CAS:
- 17418-58-5
- MF:
- C20H13NO4
- Structure:
- Chemical Name:
- Disperse Violet 33
- CAS:
- 12236-25-8
- MF:
- C18H19N5O4
- Chemical Name:
- Disperse Blue 54
- CAS:
- 12217-77-5
- MF:
- C20H12N2O6