EP 0632147 A2 19950104 - Fibers suitable for the production of nonwoven fabrics having improved strength and softness characteristics.
Title (en)
Fibers suitable for the production of nonwoven fabrics having improved strength and softness characteristics.
Title (de)
Fasern zur Vliesstoffherstellung mit verbesserter Festigkeit und Weichheit.
Title (fr)
Fibres pour la production d'étoffes non-tissées ayant douceur et résistance améliorées.
Publication
Application
Priority
IT MI931309 A 19930617
Abstract (en)
Disclosed is a fiber for nonwoven fabrics having thermowelding strength equal to or higher than 5 N and/or flexibility index greater than 800, comprising a polymer material additivated with organic phosphites and/or phosphonites, HALS, and optionally phenolic antioxidants, said polymer material being selected from: 1) isotactic propylene homopolymers having an isotactic index greater than 90; 2) random copolymers of propylene with ethylene and/or a C4-C8 alpha -olefin; and 3) blends of polymers (1) with copolymers (2) or blends of at least one of said homopolymers and copolymers with heterophasic propylene polymers; said fiber being obtained by a spinning process operating with a real or equivalent output hole diameter of less than 0.5 mm and with a hole flow-rate ranging from 0.1 to 0.6 g/minute, at a spinning temperature ranging from 230 DEG C to 320 DEG C, using polymers (1), or (2), or polymer blends (3), having MFR from 5 to 40 g/10 min, and in the absence of a drawing step.
IPC 1-7
IPC 8 full level
D01F 6/06 (2006.01); D01F 6/30 (2006.01); D01F 6/46 (2006.01); D04H 1/54 (2012.01); D04H 1/544 (2012.01); D04H 3/16 (2006.01)
CPC (source: EP KR)
D01F 6/06 (2013.01 - EP KR); D01F 6/30 (2013.01 - EP); D01F 6/46 (2013.01 - EP); D04H 1/54 (2013.01 - EP); D04H 1/544 (2013.01 - EP); D04H 3/16 (2013.01 - EP)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0632147 A2 19950104; EP 0632147 A3 19950712; EP 0632147 B1 20020306; CA 2126014 A1 19941218; DE 69430026 D1 20020411; DE 69430026 T2 20020905; FI 942890 A0 19940616; FI 942890 A 19941218; IT 1264840 B1 19961017; IT MI931309 A0 19930617; IT MI931309 A1 19941217; JP H07166416 A 19950627; KR 100304296 B1 20011130; KR 950000939 A 19950103
DOCDB simple family (application)
EP 94109404 A 19940617; CA 2126014 A 19940616; DE 69430026 T 19940617; FI 942890 A 19940616; IT MI931309 A 19930617; JP 15915794 A 19940617; KR 19940013637 A 19940616