Being the superfine fiber compound nonwoven fabrics where the superfine fiber

摘要

PROBLEM TO BE SOLVED: To provide an ultrafine fiber composite non-woven fabric which is prepared by laminating and integrating ultrafine fibers with a woven or knitted fabric, is especially suitable as filters for removing fine dusts, and is excellent in shape retainability and durability, and to provide a method for producing the same.;SOLUTION: The ultraline fiber composite non-woven fabric prepared by laminating and integrating a fiber web with a woven or knitted fabric is characterized in that the fiber web comprises ultrafine fibers obtained by removing an alkali-soluble resin component of conjugated fibers formed from an alkali-insoluble resin component and the alkali-soluble resin component, and heat-adhesive fibers A; the woven fabric or knitted fabric contains heat-adhesive fibers B; the fiber web is interlaced with needles and is bound with the heat-adhesive fibers A; the fiber web is interlaced with the woven fabric or knitted fabric with needles and is bound with the heat-adhesive fibers B.;COPYRIGHT: (C)2011,JPO&INPIT