Method for dyeing of cellulose fibre material or mixtures...

Details Method for dyeing of cellulose fibre material or mixtures... Method for dyeing of cellulose fibre material or mixtures...

D - Textiles, Paper

06

P

8/44

D06P 1/00 (2006.01) D06B 3/28 (2006.01) D06B 23/20 (2006.01) D06P 3/66 (2006.01)

Patent

CA 1232106

Abstract: Method and device for dyeing of cellulose fibre material or mix- tures containing such material by means of one or several reactive dyeing agents. Alkali is added to a dye bath which includes said dyeing agents and in which the fibre material is placed. The alkali influences the fixation of the dyeing agents to the fibre material. The alkali is added continously or substantially continously over a predetermined time interval progressively. The addition is started with a limited amount a time unit in an initial phase of said time interval. Thereafter the addition is increased to a largest amount a time unit in a final phase of said time interval until a certain amount neccessary for the dyeing process has been added. The addition is controlled automatically following a predetermined function of time.

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