DyStar and RotaSpray announce breakthrough in indigo spray-dyeing
08/02/2018
The solution was first presented at ITMA Milan in 2015. Since then, DyStar and RotaSpray have worked together to develop it further and make it available for bulk production in important denim markets such as Turkey, India and Pakistan.
With this recent breakthrough, they are now able to offer fabric manufacturers a salt-less dyeing solution for the denim industry. The new technology offers high flexibility for dyeing small lot sizes, reduced water usage and a lower-impact effluent discharge, the partners have said.
It combines using DyStar Indigo Vat 40% solution and Sera Con C-RDA (an organic reducing agent) with the patented RotoDyer and RotoCoater spraying technology.
Rotary atomisers have been in use for several decades in the textile industry, the companies have said, but mainly for re-wetting textiles with moisture. Recent cost pressures and a global demand for more sustainable solutions were the motivators that led to what they have referred to as this recent “technology leap”.
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