BICOMPONENT AND LONG FIBER PRODUCT DEFINITION

摘要

Numerous alternative methods of producing product definition in such thick, binderless wool packs (48) of long, single component, and particularly, bicomponent, glass fibers (16) are provided. The present methods are loosely grouped as those including a step which disturbs the fiber matrix, those including a step which adds an element to the fiber matrix, and those including a step of fusing fibers. The latter group of methods includes laser (94) and hot needle (90) fusing of fibers, while others include the addition of polymer fibers (96) and polymer material to long fibers (16) generally uniformly distributed in a binderless wool pack (48).