Continuous production method and device for pure cotton dyed non-woven fabric

Abstract

The invention relates to a continuous production method and device for a pure cotton dyed non-woven fabric. The method comprises the following steps: opening raw cotton, carding, carrying out cross lapping, pre-wetting and compacting, drafting, carrying out positive and negative spunlace, efficiently squeezing, padding with scouring and bleaching liquor, steaming and carrying out reaction, efficiently rinsing, drying with a roller, carrying out multilayer loose drying, storing cloth, rolling up bleached cloth, padding with a staining solution, carrying out steaming fixation, efficiently washing, drying with a roller, carrying out the multilayer loose drying and packaging the finished product. The method provided by the invention has the advantages that energy is saved, labor intensity of workers is reduced, production time is shortened, production environment is improved, product quality is improved, sewage drainage and pollution of waste gas on the environment are reduced, and bleached products and dyed products of different technologies can be obtained on the same equipment according to factory product requirements, utilization of land, plants and equipment is improved, investment for factories is reduced, and energy conservation and emission reduction, clean production as well as intelligent factory construction which are advocated at present can be facilitated.

Description

technical field [0001] The invention relates to a continuous production method and device of pure cotton dyed non-woven fabric. The invention belongs to the technical field of non-woven fabric production. Background technique [0002] Pure cotton non-woven fabric is also called all-cotton non-woven fabric. Pure cotton spunlace non-woven fabric is made of natural cotton fiber through opening, carding, laying, and drafting into a cotton web. The cotton web is pressurized by water. Spunlace entangles cotton fibers into cloth and makes fibers into cloth in a short time. Compared with traditional woven cloth, it saves the steps of spinning, sizing and weaving, greatly shortens the process flow, and saves a lot of labor and equipment. and energy consumption. Pure cotton non-woven fabrics are widely used in women's hygiene products, beauty makeup, baby products, medical gauze, surgical cloth, etc. Due to the impurities mixed in the cotton fiber during picking, drying, ginning, an...

AI Technical Summary

Problems solved by technology

[0006] To sum up, the first and second methods require the processing of high-temperature and high-pressure cylinders in the processes of degreasing, removing impurities (cotton seed hulls), rinsing and dyeing The process requires a large amount of hot water to circulate. The circulating water is circulated by a high-power water pump for a long time. The production time is long, the energy consumption is large, and the process of entering the cylinder is time-consuming. The labor intensity of the workers is high. There will be cylinder difference during cylinder production, which will affect product quality and require secondary drying

Although the third method reduces the production of degreasing and rinsing in high-temperature and high-pressure cylinders, it needs to store the rolled cotton laps on the rotating rack for about 4 hours, which virtually prolongs the production time and takes up a lot of time. It takes a lot of labor and cost to use the production room and move the coiling frame. Due to the specific conditions of cold rolling and coiling, when the fabric rolled on the reel is going through the next process, the coiled fabric that eats liquid first will come out later. For example, a cloth roll takes 3 hours to roll after eating liquid, and unwinds for 2 hours when it is washed with water, that is, the fabric that is rolled in first is released for washing at the end, then there is a difference of about 5 hours in the action time of the chemical. As a result, the consistency of the product is poor, which affects the final product quality

To sum up, most of the existing production methods and devices cannot achieve continuous bleaching and dyeing production, because of the large consumption of water, electricity, and steam energy, large sewage discharge, discontinuity of the process, high labor intensity of workers, and poor product quality. The quality is unstable, and the environment of the production process is poor. The waste gas generated during the production process will have a certain impact on the environment and personnel. Continuous production method and device of a kind of pure cotton dyed non-woven fabric

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