EP 2294259 B1 20170802 - CELLULOSE FIBER AND METHOD FOR THE PRODUCTION THEREOF
Title (en)
CELLULOSE FIBER AND METHOD FOR THE PRODUCTION THEREOF
Title (de)
CELLULOSEFASER UND VERFAHREN ZU IHRER HERSTELLUNG
Title (fr)
FIBRE DE CELLULOSE ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
- AT 2009000242 W 20090618
- AT 10302008 A 20080627
Abstract (en)
[origin: WO2009155624A1] The invention relates to a cellulose fiber of the lyocell type, which has been treated with a cross-linking agent, wherein the cross-linking agent induces fibrillation protection on the fiber and has the following properties: - the fibrillation protection induced by the cross-linking agent changes during storage of the fiber within a pH range of 4.0 to 10.0, particularly under the action of moisture and/or heat, - within the pH range of 4.0 to 10.0 an optimum value exists, at which the stability of the fibrillation protection induced by the cross-linking agent during storage is the greatest, - around the optimum value a suitable range exists, in which the stability with respect to the stability at the optimum value is reduced by no more than 20%, - the suitable range is delimited within the pH range of 4.0 to 10.0 by at least one threshold value, at which the stability with respect to the long-term stability at the optimum value is reduced by 20% and beneath or above which the stability is further reduced, - the cross-linking agent has the potential to change the pH value. The fiber according to the invention is characterized in that the fiber comprises a substance that buffers in the suitable range and in the suitable range has a buffer capacity of at least 12 mmol/kg fiber, preferably 15 to 70 mmol/kg fiber.
IPC 8 full level
D06M 11/71 (2006.01); D06M 11/76 (2006.01); D06M 11/82 (2006.01); D06M 13/184 (2006.01); D06M 13/358 (2006.01); D06M 13/432 (2006.01); D06M 101/06 (2006.01)
CPC (source: AT EP KR US)
D01F 2/00 (2013.01 - AT KR); D06M 11/71 (2013.01 - EP US); D06M 11/76 (2013.01 - EP US); D06M 11/82 (2013.01 - EP KR US); D06M 13/184 (2013.01 - EP US); D06M 13/358 (2013.01 - AT EP KR US); D06M 13/432 (2013.01 - EP US); D06M 2101/06 (2013.01 - EP US); Y10T 428/2965 (2015.01 - EP US); Y10T 442/30 (2015.04 - EP US); Y10T 442/40 (2015.04 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2009155624 A1 20091230; AT 507051 A2 20100115; AT 507051 A3 20150415; AT 507051 B1 20150515; BR PI0914774 A2 20151020; CN 102076903 A 20110525; CN 105040427 A 20151111; EP 2294259 A1 20110316; EP 2294259 B1 20170802; ES 2645691 T3 20171207; JP 2011525571 A 20110922; JP 5722769 B2 20150527; KR 101970626 B1 20190419; KR 20110025204 A 20110309; KR 20170002677 A 20170106; PT 2294259 T 20171114; US 2011171865 A1 20110714; US 9963820 B2 20180508
DOCDB simple family (application)
AT 2009000242 W 20090618; AT 10302008 A 20080627; BR PI0914774 A 20090618; CN 200980124251 A 20090618; CN 201510394252 A 20090618; EP 09768599 A 20090618; ES 09768599 T 20090618; JP 2011515014 A 20090618; KR 20117000017 A 20090618; KR 20167035944 A 20090618; PT 09768599 T 20090618; US 200913001098 A 20090618