Title (en)

METHOD FOR PRODUCING CELLULOSE FIBRES

Title (de)

VERFAHREN ZUR HERSTELLUNG CELLULOSISCHER FASERN

Title (fr)

PROCEDE DE PRODUCTION DE FIBRES DE CELLULOSE

Publication

EP 0918894 A1 19990602 (DE)

Application

EP 98927999 A 19980617

Priority

• AT 9800151 W 19980617
• AT 105397 A 19970617

Abstract (en)

[origin: US6241927B1] The invention relates to a method of producing lyocell-type cellulose fibers by processing a spinnable solution of cellulose in an aqueous tertiary amine oxide according to the dry/wet-spinning process, which method is characterized in that a solution having a content of between 0.05% and 0.70% by mass, based on the mass of the solution, of cellulose with a molecular weight of at least 5x105 is used for spinning. The method of the invention allows the use of a spinnerette having more than 10,000 spinning holes for the spinning operation, which holes are arranged in such a manner that neighboring spinning holes are spaced maximally 3 mm apart and that the linear density of the spinning holes it at least 20.

IPC 1-7

D01F 2/00; D01D 4/02

IPC 8 full level

D01D 4/02 (2006.01); D01F 2/00 (2006.01)

CPC (source: EP KR US)

D01D 4/02 (2013.01 - EP US); D01F 2/00 (2013.01 - EP KR US)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 9858103 A1 19981223; AT 405531 B 19990927; AT A105397 A 19990115; AT E239111 T1 20030515; AU 740994 B2 20011122; AU 8002598 A 19990104; BR 9806227 A 20000321; CA 2263183 A1 19981223; CA 2263183 C 20061010; CN 1111617 C 20030618; CN 1236403 A 19991124; DE 59808154 D1 20030605; EP 0918894 A1 19990602; EP 0918894 B1 20030502; ES 2198717 T3 20040201; HK 1023152 A1 20000901; ID 21230 A 19990506; JP 2000517009 A 20001219; JP 3849062 B2 20061122; KR 100517273 B1 20050927; KR 20000068155 A 20001125; MY 125882 A 20060830; NO 315949 B1 20031117; NO 990731 D0 19990217; NO 990731 L 19990217; PT 918894 E 20030829; SI 0918894 T1 20031031; TW 544476 B 20030801; US 6241927 B1 20010605; ZA 985246 B 19990108

DOCDB simple family (application)

AT 9800151 W 19980617; AT 105397 A 19970617; AT 98927999 T 19980617; AU 8002598 A 19980617; BR 9806227 A 19980617; CA 2263183 A 19980617; CN 98801167 A 19980617; DE 59808154 T 19980617; EP 98927999 A 19980617; ES 98927999 T 19980617; HK 00102198 A 20000411; ID 990029 A 19980617; JP 50340099 A 19980617; KR 19997001238 A 19990212; MY PI9802694 A 19980616; NO 990731 A 19990217; PT 98927999 T 19980617; SI 9830464 T 19980617; TW 87109802 A 19980617; US 24432399 A 19990203; ZA 985246 A 19980617