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Dyes

Reactive Dyes

Reactive dyes are a class of highly coloured organic substances, primarily used for tinting textiles, that attach themselves to their substrates by a chemical reaction that forms a covalent bond between the molecule of dye and that of the fibre. The dyestuff thus becomes a part of the fibre and is much less likely to be removed by washing than are dyestuffs that adhere by adsorption.

The first fibre reactive dyes were designed for cellulose fibres, and they are still used mostly in this way. There are also commercially available fibre reactive dyes for protein and polyamide fibres. In theory, fibre reactive dyes have been developed for other fibres, but these are not yet practical commercially. The dyes contain a reactive group that, when applied to a fibre in a weakly alkaline dyebath, form a chemical bond with the fibre. Reactive dyes can also be used to dye wool and nylon, in the latter case they are applied under weakly acidic conditions.

The most important characteristic of reactive dyes is the formation of covalent bonds with the substrate to be coloured, i.e. the dye forms a chemical bond with cellulose, which is the main component of cotton fibers.

Fiber reactive dyes are the most permanent of all dye types. Unlike other dyes, it actually forms a covalent bond with the cellulose or protein molecule. Once the bond is formed, what you have is one molecule, as the dye molecule has become an actual part of the cellulose fiber molecule. No wonder you can safely wash a garment that has been dyed in bright fiber reactive colours with white clothing, a hundred times, without endangering the whites in the least - even if it is all different bright colours, or even solid black! In contrast to all other dyes the reactive dyes bind chemically to the textile fibres, significantly improving the product's colour stability and washability. Thus reactive dying of cotton is currently the most widespread textile dying process in the world.

Reactive M Dyes

Based on Di-chlorotriazine reactive system, reactive M Dyes are highly reactive and can be applied to cellulosic material at about 30-40°C.


SHADE REACTIVE 'M' DYES FASTNESS
COTTON 4.0 % KNIT 4.0 % LIGHT 1/1 WASHING HYPO BLEACH PERSPIRATION SOLUBILITY CAS Nos.
Reactive M Yellow M8G Dyes YELLOW M8G (Yell - 86) 5 5 2 4 80 61951-86-8
Reactive  M Yellow M4G Dyes YELLOW M4G (Yell - 22) 5-6 5 1 4 50 12226-49-2
Reactive M Yellow M4R Dyes YELLOW M4R (Orange - 14) 5 5 2 4 100 12225-86-4
Reactive M Yellow MR Dyes G. YELLOW MR (Yell - 44) 5 4-5 2 4 100 -
Reactive M Orange MR2 Dyes ORANGE MR2 (Orange - 4) 5 5 3 4 100 70616-90-9
Reactive M Red M5B Dyes RED M5B (Red - 2) 4-5 4-5 1 4 100 70616-90-9
Reactive M Red M8B Dyes RED M8B (Red - 11) 4-5 4-5 4 4-5 70 1226-08-3
Reactive M Magenta MB Dyes MAGENTA MB (Violet - 13) 4-5 4 3 3-4 80 12270-87-0
Reactive M Violet M4R Dyes VIOLET M4R 4 4 3 3-4 20 -
Reactive M Blue M4GD Dyes BLUE M4GD (Blue - 168) 5 5 2 5 100 72847-57-5
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Reactive H Dyes

These dyes are relatively lower in reactivity and require appropriate condition for fixation. These dyes are specially recommended for printing and continuous dyeing. However some dyes of this group also give satisfactory yield in exhaust dyeing.

Reactive H Dyes are based on monochlorotriazine reactive system.


SHADE REACTIVE 'H' DYES FASTNESS
COTTON 4.0 % KNIT 4.0 % LIGHT 1/1 WASHING HYPO BLEACH PERSPIRATION SOLUBILITY CAS Nos.
Reactive H Yellow M4G Dyes YELLOW M4G (Yell - 18) 6-7 5 1 4-5 80 12226-48-1
Reactive H G.Yellow HR Dyes G. YELLOW HR (Orange - 12) 6 5 3 5 100 100
Reactive H Orange H2R Dyes Orange H2R (Orange - 13) 4-5 5 4 5 120 70616-89-6
Reactive H Red 6BX Dyes RED 6BX (Red- 76) 5 5 3 3-4 80 12270-84-7
Reactive H Red H8B Dyes RED H8B (Red- 31) 5 5 3-4 4 100 12237-00-2
Reactive H Purple H3R Dyes PURPLE H3R (Violet - 1) 6-7 5 4 3 100 12239-45-1
Reactive H T.Blue H5G Dyes T. BLUE H5G (Bl. -25) 5 4 3 4 70 12236-87-2
Reactive H N.Blue HR Dyes N. BLUE HR (Bl. - 59) 3 5 4-5 4-5 40 12270-71-2
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Reactive VS Dyes

VS dyes are based on B-Sulfatonethysulphone reactive system and have low to medium substantivity/reactivity for cotton. Perfect for padding and printing application as well as for the exhaust dyeing also.


SHADE REACTIVE 'VS' DYES FASTNESS
COTTON 4.0 % KNIT 4.0 % LIGHT 1/1 WASHING HYPO BLEACH PERSPIRATION SOLUBILITY CAS Nos.
Reactive 'VS' yellow 42 FG Dyes YELLOW FG (Yell - 42) 5 5 1 5 100 12226-63-0
Reactive 'VS' Yellow 15 GR Dyes YELLOW GR (Yell - 15) 6 5 1 5 100 12226-47-0
Reactive 'VS' G.Yellow 107 RNL Dyes G. YELLOW RNL (Orange - 107) 5 4-5 1 5 100 90597-79-8
Reactive 'VS' Orange 16 3R Dyes ORANGE 3R (Orange- 16) 6 4-5 1 4-5 80 20262-58-2
Reactive 'VS' G.Yellow R Dyes G. YELLOW R 5 4-5 1 4 90 -
Reactive 'VS' Orange 78 GR Dyes ORANGE GR (Orange- 78) 6 5 1 4-5 80 71902-15-3
Reactive 'VS' Red 106 C2G Dyes RED C2G (Red - 106) 4 5 1 5 100 105635-66-3
Reactive 'VS' Red 35 5B Dyes RED 5B (Red - 35) 4 5 1 5 100 12226-12-9
Reactive 'VS' Red BSID Dyes RED BSID 5 4 1 5 100 -
Reactive 'VS' Violet 5 5R Dyes VIOLET 5R (Violet -5) 7 4 2 5 100 12226-38-9
Reactive 'VS' Brown 18 GR Dyes BROWN GR (Brown - 18) 6 5 1 5 100 12225-73-9
Reactive 'VS' T-Blue BI  . 21 G Dyes T - BLUE G (BI . 21) 6 4 3 4-5 100 12236-86-1
Reactive 'VS' T-Blue H2GP Dyes T - BLUE H2GP 6 4 3 4-5 100 1226-86-1
Reactive 'VS' N-Blue BL.250 RGB Dyes N - BLUE RGB (BL . 250) 6 4-5 1 5 100 93951-21-4
Reactive 'VS' Black 5 B Dyes BLACK B (BlK - 5) 5 5 1 5 100 17095-24-8
Reactive 'VS' Black N-150 Dyes BLACK N - 150 5 5 1 5 100 -
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Reactive HE Dyes

Reactive HE Dyes are specially developed for exhaust dyeing as they are bi-functional having two manochlorotriazine reactive groups, which are positioned appropriately in one molecule of dye.


SHADE REACTIVE 'HE' DYES FASTNESS
COTTON 4.0 % KNIT 4.0 % LIGHT 1/1 WASHING HYPO BLEACH PERSPIRATION SOLUBILITY CAS Nos.
Reactive HE HE6G Yellow Dyes YELLOW HE6G (Yell - 135) 5 5 3 4 70 77907-38-1
Reactive HE HE4G Yellow Dyes YELLOW HE4G (yell - 105) 5-6 5 2 4 100 -
Reactive HE HE4R Yellow Dyes YELLOW HE4R (yell - 84) 6 5 4 4-5 80 61951-85-7
Reactive HE HER G.Yellow Dyes G. YELLOW HER (Yell - 84A) 6 5 3 4 100 -
Reactive HE HER Orange Dyes ORANGE HER (Orange - 84) 4-5 5 3 4 40 91261-29-9
Reactive HE HER Orange Dyes Reactive HE HE2R Orange Dyes ORANGE HE2R (Orange - 84A) 5 5 3 4 70 -
RED HE5B 4 5 3 4 90 -
RED HE7B (Red - 141) 4-5 4 3 4-5 100 61931-52-0
RED HE8B (Red - 141) 5 4-5 1 4 80 71872-80-5
GREEN HE4B (Gr - 19A) 4 3 2 4 100 -
GREEN HE4BD (Gr - 19) 5 4-5 2 4 100 61931-49-5
T - BLUE HA (Bl - 71) 6 4 3-4 4 90 12677-15-5
BLUE HERD (Bl - 160) 6 5 1 5 90 71872-74-1
N - BLUE HER (Bl - 171) 5 4-5 3 5 100 77907-32-5
BLACK HEBL 4 4 4 4 150 -
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Reactive ME Dyes

We offer reactive ME dyes that are low temperature, high exhaust dyes with higher grade of all round fastening properties like perspiration and light chlorine. Another advantage of these dyes are their high degree of exhaustion and fixation rates, better alkali stability and leveling properties. As these dyes react with cellulosic fibers at low temperature and also the cold - batch method, these dyes are real energy saving dyes.


SHADE REACTIVE 'ME' DYES FASTNESS
COTTON 4.0 % KNIT 4.0 % LIGHT 1/1 WASHING HYPO BLEACH PERSPIRATION SOLUBILITY CAS Nos.
YELLOW ME4G (Yell - 160A) 6-7 4 1 4-5 100 12998-77-7
YELLOW ME3G (Yell - 167) 5-6 3-4 1 4 100 115682-10-5
G. YELLOW MERL (Yell - 145) 6-7 5 3 5 100 93050-80-7
ORANGE ME2RL (Orange - 122) 5 4-5 2 4 50 79809-27-1
RED ME3G (Red - 194) 4-5 5 1 4-5 100 23354-52-1
RED MERB (Red - 198A) 4-5 4-5 1 2 100 -
RED ME4BL (Red - 195) 5 4 3-4 4 100 93050-70-4
RED ME6BL (Red - 250) 5 3-4 1 4 80 125380-49-1
N - BLUE 2RN (Blue - 222) 5 3-4 1 4 80 93051-44-6
N - BLUE ME2G (Blue - 194) 5 3-4 1 4 80 93050-78-3
BLACK HFGR 4-5 4 1 4 100 -
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