EP 4092185 A1 20221123 - FIBRILLATED REGENERATED CELLULOSE FIBER, AND FABRIC USING SAME
Title (en)
FIBRILLATED REGENERATED CELLULOSE FIBER, AND FABRIC USING SAME
Title (de)
FIBRILLIERTE REGENERIERTE CELLULOSEFASER UND DAMIT AUSGERÜSTETES GEWEBE
Title (fr)
FIBRE DE CELLULOSE RÉGÉNÉRÉE FIBRILLÉE ET TISSU UTILISANT LADITE FIBRE
Publication
Application
Priority
JP 2020000906 W 20200114
Abstract (en)
Provided are a fibrillated regenerated cellulose fiber, and a fabric using the same, the fiber having a characteristic surface texture, softness, and a resilient feeling, being fibrillated by rubbing and tanning treatment in a wet state, and having an excellent surface texture and long-lasting feeling after being water-washed, thereby exhibiting high quality. Provided are: a regenerated cellulose fiber of which the surface is fibrillated and which has a degree of polymerization of 100-250, and a tensile strength of 1.0-3.0 cN/dtex (exclusive of 1.0 cN/dtex) at the time of drying; a fabric including the regenerated cellulose fiber as a constituent yarn; and a method for producing the regenerated cellulose fiber of which the surface is fibrillated, and the fabric including the regenerated cellulose fiber as a constituent yarn, the method comprising a step for modifying, in an acid solution, the regenerated cellulose fiber into yarn or fabric form, under the conditions of a temperature of 110-150 °C, a pH of 2.6-3.4, and a duration of 10-30 minutes.
IPC 8 full level
D06M 11/00 (2006.01); D01F 2/00 (2006.01); D01F 2/04 (2006.01); D03D 15/00 (2021.01); D04B 1/14 (2006.01); D04B 21/00 (2006.01)
CPC (source: EP)
D01F 2/00 (2013.01); D01F 2/04 (2013.01); D03D 13/008 (2013.01); D03D 15/225 (2021.01); D03D 15/573 (2021.01); D06M 13/188 (2013.01); D06M 15/643 (2013.01); D10B 2201/22 (2013.01)
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4092185 A1 20221123; EP 4092185 A4 20230125; CN 114929962 A 20220819; JP 7259088 B2 20230417; JP WO2021144854 A1 20210722; WO 2021144854 A1 20210722
DOCDB simple family (application)
EP 20913922 A 20200114; CN 202080091831 A 20200114; JP 2020000906 W 20200114; JP 2021571086 A 20200114