SUPRAUNO®
Deven Supercriticals' flagship patented solution for sustainable waterless dyeing and finishing
Reducing The Environmental Impact For a Better Future
76
Water Saved
%
67
Energy Saved
%
90
Chemicals Saved
%
SUPRAUNO® SC CO₂ Dyeing Process for Polyester-Cotton Blend
Features
01
Each SUPRAUNO® commercial plant consists of a set of three dyeing vessels that operate synchronously in a staggered manner, resulting in a semi-continuous operation.
02
The SUPRAUNO® dyeing process is a closed-loop process wherein 95% of the CO2 used in each batch is recycled back into the CO2 tank.
03
The SUPRAUNO® dyeing plant can dye knitted, woven, and non-woven fabrics. It can also be used for dyeing yarn, garments, and fibers.
04
Any dissolved dyes dissolved in the CO2 solvent during the dyeing process inside the dyeing vessel is separated using a separator, such that only pure CO2 goes back into the CO2 tank.
Specifications
Textile Types
Knitted, Woven, Non-woven, Yarn, Fiber, Garment
Dyeing Capacity Offerings
3 to 7 tons of fabric dyed per day
Max Capacity per vessel
100 to 200 kgs
Dyeing Batch Time
2 hours
40 to 600
GSM Range
Steps involved in SUPRAUNO®
01
Precoating a Thin Layer of Dye solution onto the Textile
The precoating of the textiles with the dye solution containing the dyes, chemicals, and finishing agents significantly improves the efficiency of interaction of the dyes and chemicals with the Supercritical Carbon Dioxide due to a greater contact area.
02
Subsequent Drying and Rolling
into a Beam
The precoated textile goes through a drying chamber and is subsequently rolled into a beam, ready to be fed into the supercritical fluid dyeing vessel to complete dyeing.
03
Dyeing Completed using Supercritical Carbon Dioxide
The precoated textile is fed into the dyeing vessel where supercritical carbon dioxide is filled at a suitable pressure & temperature to complete the dyeing process followed by a mild washing step.