non woven abrasive , English is called felt, directly translated into Chinese should be " felt ." Nonwoven just a popular name , but well expressed its production processes. And our common woven fabric and knitted fabric are different, woven fabrics and knitted fabrics to be the first anti- fibers into a line , then line through the warp and weft knitting or circular knitted fabric made ​​into the final . Rather than weaving into textiles , but rather uses a process similar to papermaking fibers pressed into the fabric . So it has a non-woven paper characteristics , that is, no matter how you cut notches at the same will not be like any other cloth fibers to disperse. It is because of this feature, non-woven production with some minor works will be very convenient. There is a feature of non-woven fabrics than normal to thick, and feel a bit like a woolen material . Use it to produce fabric pieces would be more tangible . Early non-woven wool are used as raw material , which is why translation would be " felt " why. In recent years with the development of technology , more and more non-woven raw material complex, non-woven pure wool is relatively rare in the domestic market , then the price would surely be even more expensive . For non- component non-woven wool , may appear on the surface pilling phenomenon , this should be taken into account at the time of purchase .