SunDec – Decolorant / Colour Removal Polymer Supplier in Jaipur
Wash-off water from Sanganer and Bagru printing is coloured and thick with gums. SunDec clears the dye so treated water can be reused.
Printing clusters
Hand-block and screen printing made Sanganer and Bagru famous, and bigger dyeing and finishing houses sit beside the craft printers. Most of the effluent is the water that rinses excess dye and thickener out of printed cloth.
That rinse water is coloured and holds gums, binders, thickeners and fixing agents. Fine solids make it cloudy, and every print run changes how strong it is.
Documents for SunDec SC05
Gum out, then colour out
Coagulation removes much of the gum and pigment. SunDec SC05 then captures the dye still in solution, after which a cationic Sunfloc grade, MQ or HQ, forms flocs that settle.
Because every print run is different, jar-test whenever the recipe or the volume changes.
A water-short state
Water is precious in Rajasthan, one of the driest states in India, so printers have good reason to wash with treated water again. Reuse only works if the clarified water is clear enough to filter. Many printers are small and send effluent to a common plant; even so, settling solids on site helps meet its inlet limits. The Rajasthan State Pollution Control Board regulates units. About 2,150 km from Chennai by road, five to six days. More in our Jaipur guide.
SunDec questions from Jaipur
Is SunDec suitable for small block-printing units?
Yes. It is a liquid that is simple to dose, and drums in a range of sizes are available.
How much water can be reused?
That depends on your plant and treatment train. Clear overflow makes filtration easier.
How long is delivery?
Five to six days by road.
Wash-off at the printing cluster
Remove the gum first, then dose the decolorant on the clearer water.
SunDec in other cities
More on Jaipur
Start a SunDec trial in Jaipur
Printing and dyeing units in Sanganer, Bagru and Jaipur: send a litre of wash-off effluent for a free decolorant trial.