Process for the dyeing of wool fibers

Details Process for the dyeing of wool fibers Process for the dyeing of wool fibers

D - Textiles, Paper

01

C

8/29, 8/51, 8/9

D01C 3/00 (2006.01) D06B 21/00 (2006.01) D06P 3/04 (2006.01) D06P 5/20 (2006.01)

Patent

CA 1039004

Abstract of the disclosure: Process for the exhaust dyeing of wool fibers or of mixtures containing wool fibers with anionic dyestuffs, wherein the wound-up fibrous material is introduced into a pressure- tight dyeing vessel and heated to temperatures in the range of from 100° to 110° C by replacing the air in said dyeing vessel and filling it with saturated steam or superheated steam, the total dyebath is prepared in a separate batch vessel which is likewise pressure-tight but connected with said dyeing vessel by pipes, the dyebath is likewise heated to temperatures in the range of from 100° to 110° C control is provided of the temperatures 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.

192613

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