EP 4339358 A1 20240320 - LYOCELL MATERIAL WITH CONTROLLED WHITENESS BY HYDROGEN PEROXIDE TREATMENT AND MANUFACTURING METHOD THEREOF
Title (en)
LYOCELL MATERIAL WITH CONTROLLED WHITENESS BY HYDROGEN PEROXIDE TREATMENT AND MANUFACTURING METHOD THEREOF
Title (de)
LYOCELLMATERIAL MIT GESTEUERTER WEISSE DURCH WASSERSTOFFPEROXIDBEHANDLUNG UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
MATÉRIAU LYOCELL À BLANCHEUR CONTRÔLÉE PAR TRAITEMENT DE PEROXYDE D'HYDROGÈNE ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
- KR 20210129847 A 20210930
- KR 20220118768 A 20220920
- KR 2022014136 W 20220921
Abstract (en)
The present disclosure relates to a lyocell material with controlled whiteness by hydrogen peroxide treatment and a manufacturing method thereof, wherein the lyocell material has improved whiteness due to an aging effect through drying and packaging by a predetermined amount of hydrogen peroxide remaining in a tow, and may replace a CA cigarette filter to lower environmental pollution problems caused by discarded cigarette butts, and thus the lyocell material is suitable as a cigarette filter.
IPC 8 full level
D06M 11/50 (2006.01); A24D 3/02 (2006.01); A24D 3/06 (2006.01); A24D 3/10 (2006.01); D01D 5/06 (2006.01); D01D 5/22 (2006.01); D01D 10/06 (2006.01); D01F 2/00 (2006.01)
CPC (source: EP)
A24D 3/06 (2013.01); A24D 3/10 (2013.01); D01D 5/06 (2013.01); D01D 10/00 (2013.01); D01F 2/00 (2013.01); D01F 11/02 (2013.01); D06M 11/50 (2013.01); D06M 2101/06 (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 4339358 A1 20240320; JP 2024523420 A 20240628; WO 2023054975 A1 20230406
DOCDB simple family (application)
EP 22876748 A 20220921; JP 2023578029 A 20220921; KR 2022014136 W 20220921