EP 0797696 B1 19980729 - 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: US6117378A] PCT No. PCT/AT96/00188 Sec. 371 Date Aug. 22, 1997 Sec. 102(e) Date Aug. 22, 1997 PCT Filed Oct. 8, 1996 PCT Pub. No. WO97/14829 PCT Pub. Date Apr. 24, 1997A process for the production of cellulose fibers, comprising the following steps: (A) dissolving a cellulose-containing material in an aqueous, tertiary amine-oxide to obtain a spinnable cellulose solution; (B) spinning said cellulose solution and passing it through an aqueous precipitation bath, whereby water-containing, swollen filaments are obtained; (C) squeezing said water-containing, swollen filaments at various points, so that at least two squeezing points per millimeter of filament length on average are achieved and (D) drying said squeezed filaments to cellulose fibers, wherein squeezing is carried out using a pressure big enough so that said squeezing points produced on the filament are preserved also on the dried fibre and may be seen as color variations when observed under linearly polarized light.
IPC 1-7
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)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
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