Is a process for manufacturing microfiber nonwoven fabrics in which continuous filaments of polymer melt are stretched by a stream of hot air. The result is a nonwoven web that, thanks to the high volume of free space between the fibers, the fineness of the fibers, and its specific structure, is ideal for the absorption of liquids and hazardous substances. It also performs exceptionally well in the filtration of very fine airborne particles with high separation efficiency, as well as in many other applications across a wide range of industries.