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