EP 0205736 B1 19920129 - METHOD FOR MAKING SPUN-BONDED FIBRE WEBS
Title (en)
METHOD FOR MAKING SPUN-BONDED FIBRE WEBS
Publication
Application
Priority
DE 3521221 A 19850613
Abstract (en)
[origin: EP0205736A2] Method for making spunbonded fibre webs from synthetic fibres and/or filaments by blow spinning a melt or solution of a spinnable polymer material with the aid of a jet head (1) with jet openings (2) and a take-up device (3). In the area between the jet openings (2) and the take-up device (3) a smooth and/or crimped monofilament (4) and/or a smooth and/or crimped filament yarn (4) - or more than one thereof - having a modulus of at least 1 cN/dtex are applied to or introduced into the mass (6) of the fibres and/or filaments forming the spunbonded fibre webs (7), preferably by blowing by means of filament (yarn) forwarding jets (8). The smooth monofilaments or filament yarns improve the strength properties, such as tensile strength, and also the burst strength of the spunbonded fibre webs. The crimped monofilaments or filament yarns mainly confer on the spunbonded fibre webs a low and uniform density and also an improved gas, vapour and liquid permeability. In contradistinction to existing methods, the novel method requires no additional steps after the blow spinning step. <IMAGE>
IPC 1-7
IPC 8 full level
D04H 3/03 (2006.01); D04H 1/56 (2006.01); D04H 3/16 (2006.01); D04H 5/06 (2006.01); D04H 5/08 (2012.01)
CPC (source: EP)
D01D 5/0985 (2013.01); D04H 3/16 (2013.01); D04H 5/06 (2013.01); D04H 5/08 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0205736 A2 19861230; EP 0205736 A3 19890906; EP 0205736 B1 19920129; AT E72272 T1 19920215; CA 1278659 C 19910108; DE 3521221 A1 19861218; DE 3683691 D1 19920312; ES 553159 A0 19870116; ES 8702960 A1 19870116; JP S61289164 A 19861219; NO 861034 L 19861215
DOCDB simple family (application)
EP 86101924 A 19860214; AT 86101924 T 19860214; CA 509539 A 19860520; DE 3521221 A 19850613; DE 3683691 T 19860214; ES 553159 A 19860319; JP 7262386 A 19860401; NO 861034 A 19860318