Non-aqueous Solvent Medium (NASM) Dyeing for Textiles
The project has developed a pre-industrial scale system with two dyeing vessels with each 200L. This one-system-for-all design is able to carry out dyeing processes on yarn, fabric or whole garments. Its dyeing capacity is up to 20 kg of yarn cones within four hours. Also, about 5 kg of garments can be dyed, depending on their sizes and shapes.
The time required for NASM dyeing ranges from 60 to 240 minutes compared to 180 to 240 minutes required for water dyeing.
Up to 90% of the NASM used in the dyeing process can be reused. Since it is a waterless process, waste water treatment facilities are not required and the overall operating cost could be reduced by 5% or possibly more.
This one-system-for-all design which is able to carry out dyeing processes on yarn, fabric or whole garments is the first of its kind in the industry.
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