Method for the treatment of a textile substrate, and devices for carrying out said method

A method for treatment of a textile substrate, at which the textile substrate is arranged in a treatment device and there treated with an aqueous treatment bath, that contains chemicals and treatment agents needed for the respective treatment in a concentration chosen for the respective treatment, comprising the steps of:

• a) adjusting in the beginning of the treatment, the moisture of the textile substrate to be treated to 40% to 180%, relative to the dry weight of the textile substrate to be treated,
• b) heating the textile substrate to a temperature needed for the respective treatment previously, simultaneously herewith or hereafter,
• c) determining a treatment bath volume adjusted per time unit by pumping the treatment bath via a bypass calibration pipe from at least one vessel for preparing the treatment bath through a pressure pump, a flowmeter and a control valve back into the at least one vessel for preparing the treatment bath, wherein the treatment bath is transported through the bypass calibration pipe as long as the treatment bath volume calibrated per time is supplied reproducibly to the vessel,
• d) spraying hereafter the treatment bath volume of the respective treatment determined per time unit linearly, progressively and/or degressively on the textile substrate for a predetermined treatment time, so that due to the spraying of the treatment bath volume during the treatment the moisture of the textile substrate is linearly, progressively and/or degressively increased thus far, that the treated textile substrate has final moisture values between 70% and 300%, at the end of the treatment, relative to the dry weight of the textile substrate to be treated,
• e) transporting during the spraying of the treatment bath on the textile substrate, the textile substrate in the treatment device with an even speed as an endless fabric strand, or reversibly as a fabric web package in a width state, or, if the textile substrate is designed as a fabric reel, the sprayed treatment bath is transported through the textile substrate by rotation of the fabric reel, and
• f) removing the treatment bath which is isolated and not absorbed during treatment from the textile substrate, collecting and spraying again until the predetermined treatment time is elapsed or the treatment bath is sprayed on the textile substrate as far as possible.