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1. (WO2001004410) A METHOD OF DYEING NATURAL TEXTILE FIBRES WITH A DYEING MEDIUM COMPRISING SUPERCRITICAL CARBON DIOXIDE

Pub. No.:    WO/2001/004410    International Application No.:    PCT/EP2000/006414
Publication Date: Fri Jan 19 00:59:59 CET 2001 International Filing Date: Fri Jul 07 01:59:59 CEST 2000
IPC: D06P 1/94
D06P 3/14
D06P 3/60
Applicants: MINISTERO DELL'UNIVERSITA' E DELLA RICERCA SCIENTIFICA E TECNOLOGICA
SICARDI, Silvio
FRIGERIO, Mario
Inventors: SICARDI, Silvio
FRIGERIO, Mario
Title: A METHOD OF DYEING NATURAL TEXTILE FIBRES WITH A DYEING MEDIUM COMPRISING SUPERCRITICAL CARBON DIOXIDE
Abstract:
The method of dyeing natural textile fibres with the use of a dyeing medium comprising supercritical carbon dioxide and a dye provides for the dye to be of the water-soluble, polar type and for the dyeing medium also to comprise a polar cosolvent. The latter is preferably selected from the group consisting of methanol, ethanol, water and mixtures thereof.