H2COLOR AUX

A revolutionary compound that works by releasing
highly anionic products during washing-off

THE INDUSTRY
 Dyeing cotton can reach 100 liters of water/kilogram of fiber.

Dyeing cotton fibers with reactive dyes requires the process of washing-off of hydrolysed dye. This usually is a lengthy and difficult to achieve process, with heavy consumption of water, energy and time.

Generally, the most part of consumption occurs during the post-washing phase (rinse), necessary for extracting the hydrolysed dye that doesn't fix to the fiber during the dyeing phase.
THE TECHNOLOGY
The H2COLOR-AUX is made up of polymer particles.


The H2COLOR-AUX has affinity for the dyestuff and attaches itself to the hydrolysed reactive dye.


The particles are designed in a way as to be dissolved at temperature higher than 50℃ and at high pH (alkaline environment) a process that starts during the first wash-off stage. The polymer decomposes and releases highly anionic products, leading to formation of a layer between the dye and the fibre. 
This layer repels the hydrolysed dye and promotes a simple and effective removal right from the first wash-off stage of hydrolysed dye.
THE APPLICATION
State-of-the-art processes use an average of 8-10 washes for medium to dark colours, often at temperatures up to 100ºC, to remove the excess dye. 

H2COLOR-AUX is applied in conventional machines and can be integrated in production immediately.

By using H2COLOR-AUX, this number is reduced to 4-6 washes that too at a maximum temperature of 60ºC.

Thus, only a short and low temperature washing-off is necessary, saving an estimate of 70% of the total water used, 60% of the total energy consumed and 50% of the total process time for medium to dark colours.
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