MEANS FOR MANUFACTURING STAPLE FIBER FILTER ELEMENTS

摘要

The production of staple fiber smoke filter elements and the like directly from a continuous filamentary tow. The products have functional and physical characteristics comparable to prior art filter elements, but require 20 - 30 percent less material. The continuous filamentary tow is chopped into staple fibers, dispersed in a turbulent air stream and blown into a forming means preferably comprising a porous belt which shapes and carries the stable fibers while processing fluids such as steam and cooling air are blown through the belt and into the staple fibers. The product can be supplemented by various additive materials.