METHOD AND INTEGRATED SYSTEM FOR SUPERCRITICAL, NON-AQUEOUS SOLVENT MEDIUM DYEING OF MULTIPLE FORMS OF SYNTHETIC, NATURAL AND BLENDED TEXTILES

A method and an integrated system for dyeing synthetic, natural, and blended textiles in the form of fabrics, yarns, and garments are provided. The integrated system includes a first pressurizing pump for pressurizing liquefied CO2to supercritical CO2(Sc-CO2); a second pressurizing pump for pressuri...

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Bibliographic Details
Main Authors YAO, Lei, LEUNG, John Kin Ming, CHAN, Jason Lap Hung, KEH, Edwin Yee Man, YU, Wendy Lee Ying, CHAN, Alex Hok Chung
Format Patent
LanguageEnglish
French
German
Published 16.09.2020
Subjects
FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
LAUNDERING
TEXTILES
TREATING TEXTILE MATERIALS BY LIQUIDS, GASES OR VAPOURS
TREATMENT OF TEXTILES OR THE LIKE
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Summary:A method and an integrated system for dyeing synthetic, natural, and blended textiles in the form of fabrics, yarns, and garments are provided. The integrated system includes a first pressurizing pump for pressurizing liquefied CO2to supercritical CO2(Sc-CO2); a second pressurizing pump for pressurizing CO2to liquefied CO2; a liquefied CO2storage vessel for storing the liquefied CO2and the separated liquefied CO2from the one or more cyclone separators; a heater for heating the Sc-CO2; a dyestuff vessel for mixing a dyestuff and the Sc-CO2to obtain Sc-CO2-mixed dyestuff; a dyeing vessel for dyeing the textile by circulating the Sc-CO2and the Sc-CO2-mixed dyestuff between the dyeing vessel and the dyestuff vessel; and one or more cyclone separators for removing the dyestuff from the Sc-CO2-mixed dyestuff to obtain separated liquefied CO2.
Bibliography:Application Number: EP20190162459