EP 0264112 B1 19920226 - NONWOVEN FABRICS AND METHOD FOR PRODUCING THEM
Title (en)
NONWOVEN FABRICS AND METHOD FOR PRODUCING THEM
Publication
Application
Priority
JP 24542586 A 19861017
Abstract (en)
[origin: EP0264112A2] Nonwoven fabrics contain at least 30 % by weight of heat-adhesive composite fibers consisting of core portion and sheath portion, said core portion being of the side-by-side type composite structure comprising two core components of different polypropylene base polymers in a composite ratio of 1:2 to 2:1, one of said core components having a Q value, expressed in terms of the weight-average molecular weight/the number-average molecular weight, equal to or higher than 6 and the other having a Q value equal to or lower than 5, and said sheath portion meeting at least the requirement that it should compirse a sheath component of a polyethylene base polymer having a melting point lower by at least 20 DEG C than the lower one of the melting points of said two core components. The nonwoven fabrics are bulky and soft due to the crimps of the heat-adhesive composite fibers resultant from the core portion and are stabilized by the inter-fiber bonds of the sheath portion.
IPC 1-7
IPC 8 full level
D01D 5/20 (2006.01); D01D 5/30 (2006.01); D01D 5/34 (2006.01); D01F 8/06 (2006.01); D04H 1/4291 (2012.01); D04H 1/4382 (2012.01); D04H 1/50 (2012.01); D04H 1/541 (2012.01)
CPC (source: EP)
D01D 5/30 (2013.01); D01F 8/06 (2013.01); D04H 1/54 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0264112 A2 19880420; EP 0264112 A3 19890816; EP 0264112 B1 19920226; DE 3776855 D1 19920402; JP H0791760 B2 19951004; JP S63105161 A 19880510
DOCDB simple family (application)
EP 87114967 A 19871013; DE 3776855 T 19871013; JP 24542586 A 19861017