Method and Integrated System for Non-aqueous Solvent Medium (NASM) 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 CO2 to supercritical CO2 (Sc-CO2); a second pressurizing pump for pressu...

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Bibliographische Detailangaben
Hauptverfasser:	YAO, Lei, LEUNG, John Kin Ming, CHAN, Jason Lap Hung, KEH, Edwin Yee Man, YU, Wendy Lee Ying, CHAN, Alex Hok Chung
Format:	Patent
Sprache:	eng
Schlagworte:	DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM DYEING OR PRINTING TEXTILES 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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Beschreibung
Zusammenfassung:	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 CO2 to supercritical CO2 (Sc-CO2); a second pressurizing pump for pressurizing CO2 to liquefied CO2; a liquefied CO2 storage vessel for storing the liquefied CO2 and the separated liquefied CO2 from the one or more cyclone separators; a heater for heating the Sc-CO2; a dyestuff vessel for mixing a dyestuff and the Sc-CO2 to obtain Sc-CO2-mixed dyestuff; a dyeing vessel for dyeing the textile by circulating the Sc-CO2 and 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.