The method of manufacturing a long fiber nonwoven fabric

The method of manufacturing a long fiber nonwoven fabric of the present invention discloses a kind of excellent spinnability polyphenylene sulfide as a main component, the method of using a simple step to the step is not performed after formation of the nonwoven web heat treatment of the obtained thermal dimensional stability purposes. The method of manufacturing a long fiber nonwoven fabric of the present invention comprises the steps of: melting a resin component of step (a) will be oriented polyphenylene sulfide, while on the yarn discharged from the spinneret is cooled and solidified to obtain a heating purposes process until the injector outlet, the injector side with at least tow spinning speed 3,000m / min condition, stretching the yarn, to obtain long fibers; step (b) the long fibers were collected on a moving net to form a non- nonwoven webs; and step (c) the resulting thermally bonded nonwoven web.