Monforts is introducing a revolutionary new system for yarn dyeing based on the Econtrol dyeing system for fabrics. Econtrol is a pad-dry process employed in Monforts continuous dyeing in which the reactive dyestuff is fixed to the cellulose fibers during drying and the CYD multi-color yarn dyeing system introduces a number of new concepts based on it, including the unique Eco Bleach process. This is the first bleaching system for yarn treatment available in the market and will be of particular interest to denim manufacturers. The Eco Bleach system is combined with washing units and the fabric is then dyed immediately, resulting in considerable savings in wastewater and chemicals. This latest CYD denim processing technology integrates new functions and processes into the weaving preparatory processes – spinning, direct beaming, warping and assembly beaming, followed by sizing and dyeing – in order to increase quality, ﬂexibility, economic viability and productivity.
In its raw state, cotton has a light brownish/yellow tinge and bleaching is necessary to ensure its pure whiteness prior to dyeing. On conventional systems, this involves a separate process step, but with the CYD multi-color yarn dyeing system, it is now integrated into the Econtrol process for full dyeing pre-treatment.