METHOD FOR DYEING AND FINISHING TEXTILE MATERIAL AND CORRESPONDING APPARATUS

摘要

Method for dyeing and simultaneously finishing textile material (14) with an ammonia solution (13) containing dyes dissolved therein. The method comprises the following steps: - preparing the ammonia solution (13) containing the dyes and sending this ammonia solution to a machine (11) for processing the textile material (14); - adjusting the percentage of water present in the textile material (14) before said textile material (14) enters into the processing machine (11) so that the overall percentage of water contained in the ammonia solution (13) and the percentage of water present in the textile fibers is at maximum 20% with respect to the total weight of the solution; - entry of the textile material (14) into the processing machine (11) through safety seals (15); - impregnating the textile material (14) with the ammonia solution (13) for at least a few seconds, the textile material (14) being kept mechanically constrained between at least an entrance tensioner element (19) and an exit tensioner element (23); - squeezing out the excess ammonia from the textile material (14), still kept mechanically constrained, in order to obtain an adjustable pick-up of about 80 - 100% with respect to the dry weight of the textile material (14); - evaporation of the ammonia from the textile material (14) inside the processing machine (11); - exit of the textile material (14), dyed and dried, from the processing machine (11) through safety seals (115).