Fixation method and equipment for screen printing of natural fiber fabrics by reactive dye

Abstract

The invention discloses a fixation method and fixation equipment for screen printing of natural fiber fabrics by reactive dye. The fixation method is mainly characterized in that: the fixation method adopts constant linear speed and low and even tension of a humid heap wind-up roll for winding, and adopts statistic humid heap fixation; the fixation equipment is mainly characterized in that: the fixation equipment comprises the humid heap wind-up roll, a motor coaxially connected with a wind-up roll shaft, a frequency convertor electrically connected with the motor, a controller electrically connected with the frequency convertor, a pair of cloth guide rollers, a spreading roll, a photoelectric controller pair and a constant linear speed tension controller which are connected with the controller through electric signals, a constant linear speed tension control device separating chemical blended fabrics, and a second spreading roll; and the constant linear speed tension controller is the tension controller according with a winding machinery characteristic curve mu K=f(D). The fixation method has the characteristics of short process flow, no occurrence of color paste adhesion, color overlapping contamination and pattern distortion, energy conservation, consumption reduction and emission reduction, and the like; and the equipment has the characteristics of reasonable structure, low preparation cost, good quality of finished products printed cloth, and the like. The invention initiates a novel method for the screen printing of the natural fiber fabrics by the reactive dye.

Description

technical field [0001] The invention relates to a color-fixing method and equipment for reactive dye screen printing natural fiber fabrics, belonging to the natural fiber fabric printing technology. Background technique [0002] The printing process of the natural fiber fabric of prior art is reactive dye one-phase method printing process, and its technological process is: [0003] Pretreatment of semi-finished products (grain cloth)—reactive dyes (including alkali and urea, etc.) in the same paste printing (plate screen printing or cylinder screen printing)—drying—steaming and color fixing (102°C, 7~8min)—— Soaping - drying - to get printed fabrics. [0004] This traditional printing process not only has a long process, but also requires a large investment in equipment, high energy consumption, and a large amount of sewage (waste gas, waste water). Then, how to reform this traditional process and provide a short-process, energy-saving and emission-reducing new process of ...

AI Technical Summary

Problems solved by technology

And use this process technology to produce reactive dye prints, after all, have not been able to solve the problems such as screen printing dye delay, adhesion, color matching and screen printing type deformation distortion, and there have been no reports at home and abroad so far.

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