EP 0624676 B1 19980114 - NONWOVEN CLOTH OF ULTRAFINE FIBERS AND METHOD OF MANUFACTURING THE SAME
Title (en)
NONWOVEN CLOTH OF ULTRAFINE FIBERS AND METHOD OF MANUFACTURING THE SAME
Title (de)
VLIESSTOFF AUS SEHR FEINEN FASERN UND HERSTELLUNGSVERFAHREN HIERFür
Title (fr)
NON-TISSE DE FIBRES ULTRAFINES ET PROCEDE POUR SA FABRICATION
Publication
Application
Priority
- JP 9301417 W 19931004
- JP 29208792 A 19921005
Abstract (en)
[origin: WO9408083A1] A nonwoven cloth (6) of ultrafine fibers having high bulkiness, heat retaining property and tensile strength. A thermoplastic polymer component A is provided. A thermoplastic polymer component (B) non-compatible with respect to the component A and having a melting point higher than that of the component A by 30 -180 C is provided. A fiber web is formed by accumulating long composite fibers obtained by a bicomponent melt spinning method using the components A, B with at least the component A exposed on the outer surfaces of the fibers. The component A only is then softened or melted by applying heat to predetermined regions of the fiber web in the direction of the thickness thereof, so that the long composite fibers are fused together. A fiber fleece (5) having predetermined regions spaced in a dotted or latticed state is obtained. This fiber fleece (5) is subjected to a rubbing step. The long composite fibers existing in the non-fused region (12) are divided so that the fiber dividing rate reaches a predetermined level, to produce fibers A consisting of the component A alone and fibers B consisting of the component B alone.
IPC 1-7
IPC 8 full level
CPC (source: EP KR)
D04H 1/54 (2013.01 - EP); D04H 3/005 (2013.01 - KR); D04H 3/14 (2013.01 - EP KR); D04H 3/147 (2013.01 - KR)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 9408083 A1 19940414; DE 69316337 D1 19980219; DE 69316337 T2 19980430; EP 0624676 A1 19941117; EP 0624676 A4 19950201; EP 0624676 B1 19980114; KR 100223388 B1 19991015; KR 940009409 A 19940520; TW 246699 B 19950501
DOCDB simple family (application)
JP 9301417 W 19931004; DE 69316337 T 19931004; EP 93921107 A 19931004; KR 930020738 A 19931005; TW 82107726 A 19930921