Environment-friendly and energy-saving cloth printing and dyeing process

Abstract

The invention relates to the technical field of textile printing and dyeing, in particular to an environment-friendly and energy-saving cloth printing and dyeing process. The environment-friendly andenergy-saving cloth printing and dyeing process comprises the following steps: singeing, desizing, scouring, rinsing, dyeing and post-processing. In the dyeing process, raw materials are subjected toimpurity removal, cleaning, sterilization and grinding treatment; the raw materials comprise bluegrass, safflower carthamus, flos sophorae, purple perilla, rhizoma dioscoreae cirrhosae and gallnut; the two sides of the dried cloth are wetted with ethyl alcohol; the wetting depth accounts for 1 / 3 of the cloth; the two sides of the cloth are uniformly coated with the raw materials, and finally the two sides of the cloth are wrapped with a preservative film; water is poured into a dyeing pool, and the cloth wrapped with the preservative film is placed right above the dyeing pool. According to thecloth printing and dyeing process, water vapor is used for heating the cloth, ethyl alcohol is used for extracting pigments in the raw materials, the process of dyeing the cloth through plant dyes isachieved, harmful substances are not generated in the cloth dyeing process, meanwhile, a large amount of energy is saved, and the cloth printing and dyeing process has the advantages of being environmentally friendly and capable of saving energy.

Description

technical field [0001] The invention relates to the technical field of textile printing and dyeing, in particular to an environmentally friendly and energy-saving cloth printing and dyeing process. Background technique [0002] Printing and dyeing is also called dyeing and finishing; it is a processing method, and it is also a general term for pretreatment, dyeing, printing, finishing, washing, etc.; the existing dyeing and finishing profession has now been merged into the light chemical engineering profession; at present, printing and dyeing at home and abroad The development trend of the industry is high efficiency, energy saving and environmental protection. These three aspects complement each other and are indispensable; to develop productivity, improving production efficiency is the most direct means; and energy saving has reached the stage where measures must be taken; when taking energy saving measures, While developing productivity, it is necessary to have environmen...

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Problems solved by technology

[0002] Printing and dyeing is also called dyeing and finishing; it is a processing method, and it is also a general term for pretreatment, dyeing, printing, finishing, washing, etc.; the existing dyeing and finishing profession has now been merged into the light chemical engineering profession; at present, printing and dyeing at home and abroad The development trend of the industry is high efficiency, energy saving and environmental protection. These three aspects complement each other and are indispensable; to develop productivity, improving production efficiency is the most direct means; and energy saving has reached the stage where measures must be taken; when taking energy saving measures, While developing productivity, it is necessary to have environmental protection awareness and pollution treatment methods; the current dyeing methods of fabrics mainly include pad dyeing and exhaust dyeing; pad dyeing has the characteristics of continuous dyeing processing and high production efficiency, and is suitable for dyeing large quantities of textile fabrics. The range of fabric types is small; dip dyeing is suitable for dyeing various forms of textiles, but the dye is expensive and the pollution is serious; at the same time, desizing treatment is required before printing and dyeing. The desizing process requires a large amount of desizing agent and consumes raw materials. And increase pollution, so now the market is in urgent need of an environmentally friendly and energy-saving cloth printing and dyeing process

[0003] In the prior art, there are also some preparation processes for environmentally friendly and energy-saving fabric printing and dyeing processes. For example, a Chinese patent with application number CN202010140834.8 discloses an environmentally friendly and energy-saving fabric printing and dyeing process. The scouring device used in this technical solution It includes a pool body with an opening at the upper end; a set of guide rollers is arranged near the bottom of the pool body, and one end of the guide roller is connected to the side wall of the pool body in rotation; a sliding cylinder is fixedly connected to the pool body between adjacent guide rollers, and the inside of the sliding cylinder Sliding connection with a sliding column; the top of the sliding column is fixedly connected with a rotating shaft, and a tension roller is sleeved on the rotating shaft, and the tensioning roller is connected to the rotating shaft in rotation; the No. 1 hole opened in the axial direction on the rotating shaft communicates with the water pump through a pipe and a valve; the rotating shaft In the middle part, there is a No. 2 hole along the diameter of the cross-section of the rotating shaft, and the No. 2 hole is connected with the No. 1 hole; the tension roller and the No. 2 hole are provided with annular grooves, and the outer circumference of the tension roller is evenly distributed. A group of annular grooves Connected nozzle holes; this technical scheme sprays desizing agent to the gray cloth through the nozzle holes to increase the desizing efficiency of the gray cloth; however, this technical scheme puts the gray cloth into the dyeing solution for printing and dyeing, and the dye consumption is large and the pollution is serious. Thereby departing from the direction of environmental protection and energy saving, which in turn caused the limitation of this technical solution

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