EP 0797696 B2 20071024 - PROCESS FOR PRODUCING CELLULOSE FIBRES
Title (en)
PROCESS FOR PRODUCING CELLULOSE FIBRES
Title (de)
VERFAHREN ZUR HERSTELLUNG CELLULOSISCHER FASERN
Title (fr)
PROCEDE DE FABRICATION DE FIBRES CELLULOSIQUES
Publication
Application
Priority
- AT 9600188 W 19961008
- AT 170395 A 19951013
Abstract (en)
[origin: GB2310630A] The invention relates to a process for producing cellulose fibres comprising the steps (A) dissolving a cellulose-containing material in an aqueous tertiary amine oxide to obtain a spinnable cellulose solution; (B) spinning the cellulose solution and taking it through an aqueous precipitation bath, giving water-containing swollen filaments; (C) crushing the water-containing swollen filaments at different points so that there are at least two crushed points per millimetre of filament length, and (D) drying the crushed filaments to obtain cellulose fibres; in which the filaments are crushed under sufficient pressure so that the crushed points also remain on the dried fibre and are visible as colour changes when observed under linearly polarised light.
IPC 8 full level
D01F 2/00 (2006.01); D02G 3/02 (2006.01); D02J 1/06 (2006.01); D03D 15/00 (2006.01); D04H 1/42 (2012.01); D04H 1/425 (2012.01); D04H 3/16 (2006.01)
CPC (source: EP US)
D01D 5/26 (2013.01 - EP); D01F 2/00 (2013.01 - EP US); D04H 1/425 (2013.01 - EP US); D04H 1/4258 (2013.01 - EP US); D04H 3/16 (2013.01 - EP US)
Citation (opposition)
Opponent :
- WO 9524520 A1 19950914 - COURTAULDS FIBRES HOLDINGS LTD [GB], et al
- Chemical Fibers International (CFI), Band 45, Februar 1995, Seite 11
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated extension state (EPC)
AL LT LV SI
DOCDB simple family (publication)
US 6117378 A 20000912; AT 402741 B 19970825; AT A170395 A 19961215; AT E169063 T1 19980815; AU 705530 B2 19990527; AU 7120596 A 19970507; BG 101688 A 19980331; BG 63643 B1 20020731; BR 9606687 A 19971125; CA 2206250 A1 19970424; CA 2206250 C 20031209; CN 1070543 C 20010905; CN 1173901 A 19980218; CZ 161497 A3 19980617; CZ 290849 B6 20021016; DE 19680883 D2 19980416; DE 59600380 D1 19980903; DK 0797696 T3 19990503; EP 0797696 A1 19971001; EP 0797696 B1 19980729; EP 0797696 B2 20071024; ES 2120286 T3 19981016; ES 2120286 T5 20080416; GB 2310630 A 19970903; GB 2310630 B 19990217; GB 9712422 D0 19970813; GR 3027605 T3 19981130; HK 1009161 A1 19990910; HU 221512 B 20021028; HU P9800831 A2 19980728; HU P9800831 A3 19981228; JP 2007016381 A 20070125; JP 2009013577 A 20090122; JP 2010174429 A 20100812; JP 3884479 B2 20070221; JP 5043144 B2 20121010; JP H10511151 A 19981027; KR 100430921 B1 20040804; MX 9704441 A 19971031; MY 113879 A 20020629; NO 309490 B1 20010205; NO 972440 D0 19970528; NO 972440 L 19970528; PL 188136 B1 20041231; PL 320740 A1 19971027; RO 116653 B1 20010430; RO 120276 B1 20051130; SI 0797696 T1 19981231; SK 284228 B6 20041103; SK 72497 A3 19980114; TR 199700493 T1 19971121; TW 357201 B 19990501; TW 421677 B 20010211; WO 9714829 A1 19970424; ZA 968515 B 19970520
DOCDB simple family (application)
US 84946497 A 19970822; AT 170395 A 19951013; AT 9600188 W 19961008; AT 96932374 T 19961008; AU 7120596 A 19961008; BG 10168897 A 19970626; BR 9606687 A 19961008; CA 2206250 A 19961008; CN 96191689 A 19961008; CZ 161497 A 19961008; DE 19680883 T 19961008; DE 59600380 T 19961008; DK 96932374 T 19961008; EP 96932374 A 19961008; ES 96932374 T 19961008; GB 9712422 A 19961008; GR 980401783 T 19980807; HK 98109930 A 19980813; HU P9800831 A 19961008; JP 2006242655 A 20060907; JP 2008237404 A 20080917; JP 2010076444 A 20100329; JP 51533897 A 19961008; KR 19970704062 A 19970613; MX 9704441 A 19961008; MY PI19964112 A 19961004; NO 972440 A 19970528; PL 32074096 A 19961008; RO 200100266 A 19961008; RO 9701053 A 19961008; SI 9630026 T 19961008; SK 72497 A 19961008; TR 9700493 T 19961008; TW 85111971 A 19961001; TW 87103019 A 19961001; ZA 968515 A 19961009