EP 3696315 B1 20240403 - PROCESS FOR OPTICAL BLEACHING OF A TEXTILE PRODUCT MADE FROM ANIMAL FIBERS AND TEXTILE PRODUCT TREATED ACCORDING TO THIS PROCESS
Title (en)
PROCESS FOR OPTICAL BLEACHING OF A TEXTILE PRODUCT MADE FROM ANIMAL FIBERS AND TEXTILE PRODUCT TREATED ACCORDING TO THIS PROCESS
Title (de)
VERFAHREN ZUM OPTISCHEN AUFHELLEN VON TEXTILPRODUKTEN AUS TIERISCHEN FASERN UND NACH DIESEM VERFAHREN BEHANDELTE TEXTILPRODUKTE
Title (fr)
PROCEDE DE BLANCHEMENT OPTIQUE D'UN PRODUIT TEXTILE À BASE DE FIBRES D'ORIGINE ANIMALE ET PRODUIT TEXTILE AINSI TRAITÉ
Publication
Application
Priority
IT 201900002261 A 20190215
Abstract (en)
[origin: EP3696315A1] The present invention relates to a process for bleaching into optical white tone textile products obtained from fibres of animal origin, not previously subjected to a bleaching treatment, pure or mixed between them, such as for example those of cashmere, wool, alpaca, vicuña, silk.The process comprises preparing a bath, for treating the textile product, composed of an amount of water of at least 15 litres per 1000 grams of weight of the product to treat in the bath, of at least 75 grams of 90% hydrosulphite, of a solvent for removing fatty substances from animal fibres, in an amount of at least 15 grams and of at least 20 grams of an optical brightener compound.According to the invention, the textile product must remain in the bath for a time comprised between 60 and 90 minutes, and the bath temperature, during the treatment of the product must not be higher than 60°C.
IPC 8 full level
D06L 4/614 (2017.01); D06L 4/30 (2017.01)
CPC (source: EP)
D06L 4/30 (2016.12); D06L 4/614 (2016.12)
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
DOCDB simple family (publication)
DOCDB simple family (application)
EP 20155094 A 20200203