How are non-woven fabrics made?

Non-woven fabric is a new type of environmentally friendly material. Non-woven fabric (English name: Non Woven Fabric or Nonwoven cloth), also known as non-woven fabric, is composed of oriented or random fibers.
It is called cloth because of its appearance and certain properties. Non-woven fabric has the characteristics of moisture-proof, breathable, flexible, light weight, non-combustible, easy to decompose, non-toxic and non-irritating, rich in color, low price, and recyclable. . For example, polypropylene (PP material) pellets are mostly used as raw materials, which are produced by continuous one-step method of high-temperature melting, spinning, laying, and hot-pressing.
Firstly, feed the polypropylene raw material, and then use the large screw to melt and extrude at high temperature, pass through the filter, and then to the metering pump (quantitative delivery), followed by spinning and stretching, after cooling, the screen is formed into a web, and then the press rolls are up and down. , The rolling mill is hot rolled (reinforced), coiled and formed, after the slitting, you can weigh and pack, QC finished product inspection, OK finished product storage.