Process for the dyeing of synthetic fibers

Details Process for the dyeing of synthetic fibers Process for the dyeing of synthetic fibers

D - Textiles, Paper

06

P

8/31, 8/51

D06P 3/00 (2006.01) D06B 21/02 (2006.01) D06P 5/20 (2006.01)

Patent

CA 1037657

PROCESS FOR THE DYEING OF SYNTHETIC FIBERS Abstract of the disclosure: Process for the exhaust dyeing of wound bodies of synthetic fiber materials with water-soluble cationic dyestuffs or anionic dyestuffs, wherein the wound-up textile material is heated to temperatures in the range of from 100° to 120° C in a pressure- tight dyeing vessel by replacing the air in said dyeing vessel by saturated or superheated steam, preparing the total dyebath in a separate batch vessel, which is likewise pressure-tight but connected with said dyeing vessel by pipes, also heating said dyebath to temperatures in the range of from 100° to 120° C. control is maintained of the temperature within the mentioned limit values , the steam pressure in both closed systems and the application of external pressure securing the building up of a relative excess pressure of 3 to 10 atmospheres gauge in the batch vessel, and the hot dyeing liquor is pressed by the differential pressure within 3 to 60 seconds simultaneously from inside and from outside into the dry or wet wound bodies.

192612

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