What is the production process of non-woven fabrics

What is the production process of non-woven fabrics

                       
Update:03-08-2021
Summary: Non-woven fabric is a kind of fabric that does not need to be spun and woven. It just aligns or ran...
Non-woven fabric is a kind of fabric that does not need to be spun and woven. It just aligns or randomly arranges textile short fibers or filaments to form a fiber network structure, and then uses mechanical, thermal bonding or chemical methods to reinforce it. . To put it simply: it is not interwoven and knitted together one by one yarns, but the fibers are directly bonded together by physical methods, so when you get the sticky scale in your clothes , You will find that it is impossible to draw out the thread ends. Non-woven fabric breaks through the traditional textile principle, and has the characteristics of short process flow, fast production speed, high output, low cost, wide use, and multiple sources of raw materials.
Its main uses can be roughly divided into: (1) Medical and sanitary cloth: surgical gowns, protective clothing, disinfection wraps, masks, diapers, women's sanitary napkins, etc.;
(2) Cloths for home decoration: wall coverings, table cloths, bed sheets, bedspreads, etc.;
(3) Follow-up cloth: lining, fusible lining, wadding, styling cotton, various synthetic leather base cloth, etc.;
(4) Industrial cloth: filter material, insulating material, cement packaging bag, geotextile, covering cloth, etc.;
(5) Agricultural cloth: crop protection cloth, seedling raising cloth, irrigation cloth, thermal insulation curtain, etc.;
(6) Others: space cotton, thermal insulation materials, linoleum, cigarette filters, tea bags, etc.
The production process of non-woven fabrics:
The spunlace process is to spray a high-pressure fine water stream onto one or more layers of fiber webs, so that the fibers are entangled with each other, so that the fiber webs can be reinforced and have a certain strength. Pulp air-laid non-woven fabrics air-laid non-woven fabrics can also be called dust-free paper and dry paper-making non-woven fabrics. It uses air-laid technology to open the wood pulp fiberboard into a single fiber state, and then uses air-flow method to agglomerate the fibers on the web curtain, and then reinforce the fiber web into a cloth. Thermally bonded non-woven fabric: Thermally bonded non-woven fabric refers to the addition of fibrous or powdery hot-melt adhesive reinforcement materials to the fiber web, and the fiber web is heated, melted and cooled to be reinforced into a cloth. The wet-laid non-woven fabric is placed in The fiber raw materials in the water medium are opened into single fibers, and different fiber raw materials are mixed at the same time to form a fiber suspension slurry, which is transported to a net forming mechanism, and the fibers are formed into a net in a wet state and then reinforced into a cloth. The above content is a brief introduction to the production process of non-woven fabrics.