Is the use of mechanical non-woven needle, acupuncture by repeated puncture in the fiber, the fiber between the solid force has been continuously strengthened, after hot rolling process, and do not need to become textile finished cloth, non-woven fabric by acupuncture is not a root of a fiber cloth and interlacing textile cloth, a cloth fiber free but messy the order, so it does not warp and weft yarns and warp and weft direction stress does not exist difference, that is to say the longitudinal and transverse direction does not exist stress difference, making it more durable, new application areas are expanding.

 

In fact, all nonwovens are also different from weft and weft, and there is no difference between longitudinal and transverse directions. Because nonwovens are not woven fabrics, they are fabrics made of natural fibers. Needle punched nonwovens mainly use polyester and polypropylene as raw materials, but because of other raw materials, there are still many differences in the content. There are many kinds of needled nonwovens, and many non-woven products are produced. It was used primarily for conventional air filtration and dust control, and is now being extended to the applications of transportation, industrial wiping and other fields.