The exact name of Needle punched non woven fabric should be non-woven fabric, or non-woven fabric. It is a kind of fabric that does not require spinning or weaving, but only directional or random arrangement of textile staple fibers or filaments to form a web structure, which is then reinforced by mechanical, thermal or chemical methods. To put it simply: it is not interwoven and knitted together by one by one yarn, but the fibers are directly combined by physical methods, so when you get the lining in your clothes . You will find that it is impossible to extract a single thread.
(1) Its main uses can be roughly divided into: ① non-woven fabrics for medical and sanitary use; ② non-woven fabrics for home decoration; ③ non-woven fabrics for clothing; ④ non-woven fabrics for industrial use; ⑤ non-woven fabrics for agricultural use.
(2) Classification of non-woven fabrics
①Spunlace 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 are reinforced and have a certain strength.
②Heat-bonding non-woven fabrics Heat-bonding non-woven fabrics refers to adding fibrous or powdery hot-melt a-bonding reinforcement materials to the fiber web, and the fiber web is then heated, melted, cooled, and reinforced into cloth.
③Pulp air-laid non-woven fabric Air-laid non-woven fabric can also be called dust-free paper and dry-laid non-woven fabric. It uses the air-laid technology to loosen 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 then reinforced into a cloth.
④Wet-laid non-woven fabric Wet-laid non-woven fabric is to open the fiber raw materials 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. In the wet state, it is formed into a net and then reinforced into a cloth.
⑤Spunbond non-woven fabric Spun-bonded non-woven fabric is after the polymer has been extruded and stretched to form continuous filaments, the filaments are laid into a web, and the web is then subjected to self R-bonding, thermal bonding, chemical bonding or mechanical bonding. Reinforcement method 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 Needle-punched non-woven fabric Needle-punched non-woven fabric is a kind of dry-laid non-woven fabric. Needle-punched non-woven fabric uses the puncture effect of a needle to reinforce the fluffy fiber web into cloth.