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How to divide non-woven fabrics from materials

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How to divide non-woven fabrics from materials

The fibers used in the production of non-woven fabrics are mainly polypropylene (PP) and polyester (PET). In addition, there are nylon (PA), viscose, acrylic, ethylene (HDPE), and vinyl (PVC). According to application requirements, non-woven fabrics are divided into two categories: disposable application type and durable type.
The production process is divided into:
1. Spunlace non-woven fabric: The spunlace process is to spray high-pressure fine water flow 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.
2. heat-bonded non-woven fabrics: Heat-bonded non-woven fabrics refer to adding fibrous or powdery hot-melt bonding reinforcement materials to the fiber web, and the fiber web is then heated, melted, cooled, and reinforced into cloth.
3. Pulp air-laid non-woven fabrics: Air-laid non-woven fabrics can also be called dust-free paper and dry-laid non-woven fabrics. It uses the air-laid technology to open the wood pulp fiberboard into a single fiber state, and then uses the air-laid method to condense the fibers on the web-forming curtain, and the fiber web is reinforced into a cloth.
4. wet-laid non-woven fabric: wet-laid non-woven fabric is to open the fiber raw material placed in the water medium into single fibers, and at the same time mix different fiber raw materials to make fiber suspension pulp, and the suspension pulp is transported to the web-forming mechanism, and the fibers are In the wet state, it is formed into a net and then reinforced into a cloth.
5. Spunbond non-woven fabric: After the polymer has been extruded and stretched to form continuous filaments, the filaments are laid into a web, and the web is then self-bonded, thermally bonded, and chemically bonded. Or mechanical reinforcement methods to turn the web into a non-woven fabric.
6. Melt-blown non-woven fabric: The process of melt-blown non-woven fabric: polymer feeding---melt extrusion---fiber formation---fiber cooling---web formation---reinforcement into cloth.
7. Acupuncture non-woven fabrics: Acupuncture non-woven fabrics are a kind of dry non-woven fabrics. Acupuncture non-woven fabrics use the puncture effect of needles to reinforce the fluffy fiber web into cloth.
8. stitch-bonded non-woven fabrics: stitch-bonded non-woven fabrics are a kind of dry-laid non-woven fabrics. The stitch-bonding method is to use the warp-knitted coil structure to fabricate fiber webs, yarn layers, non-woven materials (such as plastic sheets, plastic thin metal foils), etc.) or their combinations are reinforced to make non-woven fabrics.
9. Hydrophilic non-woven fabrics: mainly used in the production of medical and sanitary materials to achieve a better hand feel and not scratch the skin. For example, sanitary napkins and sanitary pads use the hydrophilic function of hydrophilic non-woven fabrics.

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