Teijin has developed a neat-resistant nonwoven fabric using meta-aramid fibers for the bag filter marekt. The fibers used to make the nonwoven fabrics feature an extra-find fiber of 0.5dtex. Although there is a method used to laminate a PTFE film to the nonwoven fabric, the company is trying to increase the efficiency of this process. Improving this efficiency because of challenges associated with laminating aramid fiber to the PTFE film. This material is being marketed in China where the environmental regulations are severe and demand for bag filters is growing.