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 puncture needles to reinforce the fluffy fiber web into cloth. Needle-punched non-woven fabric is one of the dry non-woven fabrics. The short fibers are opened, combed, and laid into a fiber web, and then the fiber web is reinforced into a cloth by a thorn needle. , Hook belt fiber reinforcement to form needle-punched non-woven fabrics, non-woven fabrics have no warp and weft lines, the fibers of the fabric are messy, and the radial and weft properties are not very different. Although needle punched non-woven fabrics are a branch of non-woven fabrics, they have more advantages than non-woven fabrics because they have the characteristics of strong tensile force, high temperature resistance, anti-aging, stability and good air permeability.