EP 3988710 A1 20220427 - METHOD FOR ALLEVIATING DISCOLORATION OF CELLULOSIC FIBERS, AND PRODUCTS MANUFACTURED THEREBY
Title (en)
METHOD FOR ALLEVIATING DISCOLORATION OF CELLULOSIC FIBERS, AND PRODUCTS MANUFACTURED THEREBY
Title (de)
VERFAHREN ZUR VERMINDERUNG DER VERFÄRBUNG VON CELLULOSEFASERN UND SO HERGESTELLTE PRODUKTE
Title (fr)
PROCÉDÉ D'ATTÉNUATION DE DÉCOLORATION DE FIBRES CELLULOSIQUES ET PRODUITS AINSI FABRIQUÉS
Publication
Application
Priority
EP 21187351 A 20210723
Abstract (en)
This invention relates to a method for preventing or alleviating the yellowing of cellulosic fibers during high-temperature treatments, wherein the fibers are treated with an aqueous solution with a pH controlled between 4.0 and 7.0 and containing a protective agent, subsequently dried, and subsequently high-temperature treated, wherein the protective agent contains an alkaline earth metal and zinc hydroxy(substituted)alkanoate and oxoalkanoate.
IPC 8 full level
D06L 4/10 (2017.01); D06L 4/20 (2017.01); D06M 13/207 (2006.01)
CPC (source: EP)
D06L 4/10 (2016.12); D06L 4/20 (2016.12); D06M 13/207 (2013.01); D06M 2101/06 (2013.01); D06M 2200/25 (2013.01)
Citation (search report)
[A] GB 998404 A 19650714 - JOHNSON & JOHNSON
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
DOCDB simple family (publication)
EP 3988710 A1 20220427; CN 115679690 A 20230203; TW 202307308 A 20230216; WO 2023001849 A1 20230126
DOCDB simple family (application)
EP 21187351 A 20210723; CN 202210861098 A 20220722; EP 2022070259 W 20220719; TW 111122414 A 20220616