What is the main production method of non-woven fabrics
The main production methods of non-woven fabrics are as follows: (1) Spunlace non-woven fabric Spunlace non-woven fabric is the most commonly used method. The high-pressure thin water jet is sprayed onto one or more layers of the fabric to entangle the fibers and strengthen the fabric. It can guarantee a special soft and thick feeling, and at the same time has a certain tensile strength. Other non-woven fabrics are made by melting and spunbonding processes. However, the production cost of spunlace non-woven fabrics is high, and the higher the cotton content, the better. Some small manufacturers use dust-free paper, which is low cost, but it can easily cause allergies. (2) Thermally bonded non-woven fabric Add fibrous or powdery hot-melt bonding reinforcing material to the fiber web, and then heat to melt and cool the reinforcing cloth. (3) Pulp flows into the non-woven fabric net Also known as dust-free paper, dry paper non-woven fabric. The wood pulp fiberboard is opened into a single fiber state by airflow forming technology, and then the fibers are glued to the screen by the airflow method, and then the fiber web is reinforced into a cloth. (4) Wet non-woven fabric The fiber raw material in the water medium is opened into a single fiber, and different fiber raw materials are mixed at the same time to form a fiber suspension slurry, which is transported to the network forming mechanism, and the fiber is formed into a web and then consolidated into a cloth in a wet state. (5) Spunbond non-woven fabric After the polymer is extruded and stretched, the continuous filaments formed are spread into a network, and the fiber network is self-bonded, thermally bonded, chemically bonded or mechanically strengthened to make the fiber network into a non-woven fabric. (6) Meltblown non-woven fabric Process: polymer feeding-melt extrusion-fiber formation-fiber cooling-netting-reinforcement into cloth. (7) Needle punched non-woven fabric Dry-laid non-woven fabrics use the perforation effect of needle punching to reinforce the fluffy fiber web into a cloth. (8) Sewing and weaving non-woven fabrics In dry non-woven fabrics, warp-knitted web structures are used to reinforce fiber webs, yarn layers, non-woven materials (plastic sheets, plastic foils, etc.) or their combination to make non-woven fabrics. (9) Hydrophilic non-woven fabric Mainly used in the production of medical and health care materials to get a better feeling without scratching the skin. Like sanitary napkins, sanitary pads use hydrophilic non-woven fabrics with hydrophilic functions.