Manufacturers and Exporters of Synthetic Organic Dyes

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Cotfix VS Dyes are Reactive Dyes possesing Vinyl Sulphone as the reactive group. In presence of Alkali, these dyes chemically react with the hydroxyl group of cellulose and form firm, covalent linkages. These dyes are versatile enough to suit different dyeing methods. Results are excellent and shades come clean and brilliant with no variation in dyeing as well as in printing. Cotfix VS Dyestuffs possess poor affinity for cellulosic fibres in absence of salt and alkalies. For this reasons, they are suitable for use on pad. Their substantivity can be increased by addition of Glauber's salt of common slat and alkali, making the dyestuff suitable on all conventional dyeing machines for loose material, yarn in hanks and packages and piece goods. The dyeing methods may therefore, be classified under the padding and exhaust processes, standing baths are not recommended, as in alkaline medium inactivation of the dyestuff by reaction with water takes place as a side reaction. The main features of Cotfix VS Dyes are : 1. Posses excellent brightness and good wet fastness. 2. They are dischargeable. 3. They are suitable for exhaust and different pad dyeing methods and discharge printing. 4. Ease of washing off unfixed dyestuffs i.e. minimum staining of the white ground in printing. 5. They are applicable at 40ºC and 60ºC.       S/N 1 Colour Name COTFIX YELLOW FG Color Color Index Number REACTIVE YELLOW 42   2 COTFIX YELLOW GR REACTIVE YELLOW 15   3 COTFIX G.YELLOW RNL REACTIVE ORANGE 107   4 COTFIX YELLOW GL REACTIVE YELLOW 37   5 COTFIX ORANGE 3R REACTIVE ORANGE 16   6 COTFIX RED 5B REACTIVE RED 35   7 COTFIX RED C2G REACTIVE RED 106   8 COTFIX RED 3B REACTIVE RED 180   9 COTFIX RED RB REACTIVE RED 198   10 COTFIX RED 5B REACTIVE RED   10 COTFIX BROWN GR REACTIVE BROWN 18   11 COTFIX VIOLET 5R REACTIVE VIOLET 5   12 COTFIX BLUE BB REACTIVE BLUE 220   13 COTFIX DARK BLUE R REACTIVE BLUE 19   14 COTFIX DARK BLUE HR REACTIVE BLUE 89   15 COTFIX T.BLUE G REACTIVE BLUE 21   16 COTFIX T. BLUE H2GP 133% REACTIVE BLUE 21   17 COTFIX BLUE 2G REACTIVE BLUE 203   18 COTFIX BLUE RGB REACTIVE BLUE 250   19 COTFIX BLUE 3R REACTIVE BLUE 28   20 COTFIX BLACK B REACTIVE BLACK 5   21 COTFIX BLACK RL REACTIVE BLACK 31   22 COTFIX BLACK FRL   23 COTFIX BLACK N-200   24 COTFIX BLACK HFGR   25 COTFIX BLACK GRL

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