Continuous production method and device for purified-cotton bleached non-woven fabrics

Abstract

The invention relates to a continuous production method and device for purified-cotton bleached non-woven fabrics. The method includes the following steps of raw cotton opening, carding, cross lapping, prewetting compaction, drafting, positive and negative spunlace, high-efficiency squeezing, boiling and bleaching liquid padding, a steaming reaction, high-efficiency rinsing, PH adjustment, softening, roller drying, multi-layer loose drying and finished-product packaging. The method and the device have the advantages of saving energy, reducing labor intensity of workers, shortening production time, improving production environment, improving product quality, reducing discharge of sewage and pollution of waste gas to the environment, improving utilization of land, workshop buildings and equipment, and reducing investment of factories, and are beneficial to currently-advocated energy conservation, emission reduction, clean production and intelligentized factory construction.

Description

technical field [0001] The invention relates to a continuous production method and device for bleached pure cotton 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, ginnin...

AI Technical Summary

Problems solved by technology

[0006] To sum up, the first and second methods need to use high-temperature and high-pressure cylinders in the process of degreasing, removing impurities (cotton seed hulls), rinsing, and the process requires a large amount of hot water to circulate. The high-power water pump circulates for a long time, the production time is long, the energy consumption is large, the process of entering the cylinder each time takes a long time, and the labor intensity of the workers is high. When using high-temperature and high-pressure cylinders for production, there will be cylinder differences, which will affect product quality. second 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 production, there are large energy consumption of water, electricity and steam, large sewage discharge, discontinuous process, high labor intensity of workers, and poor product quality. Unstable, and the environment of the production process is poor, the waste gas produced in the production process will have a certain impact on the environment and personnel, which is in line with the requirements of energy conservation, emission reduction, clean production, and intelligent factories advocated by the state. Therefore, we propose a Continuous production method and device of pure cotton bleached non-woven fabric

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