PROCESS FOR THE DYEING OF SYNTHETIC FIBERS

摘要

PROCESS FOR THE DYEING OF SYNTHETIC FIBERS 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.degree. to 120.degree. C in a pressuretight 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.degree. to 120.degree. 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.