The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 12, 2025
Filed:
Mar. 13, 2019
The Hong Kong Research Institute of Textiles and Apparel Limited, Hong Kong, CN;
Edwin Yee Man Keh, Hong Kong, CN;
Lei Yao, Hong Kong, CN;
Alex Hok Chung Chan, Hong Kong, CN;
John Kin Ming Leung, Hong Kong, CN;
Jason Lap Hung Chan, Hong Kong, CN;
Wendy Lee Ying Yu, Hong Kong, CN;
The Hong Kong Research Institute of Textiles and Apparel Limited, Hong Kong, CN;
Abstract
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 COto supercritical CO(Sc—CO); a second pressurizing pump for pressurizing COto liquefied COa liquefied COstorage vessel for storing the liquefied COand the separated liquefied COfrom the one or more cyclone separators; a heater for heating the Sc—CO; a dyestuff vessel for mixing a dyestuff and the Sc—COto obtain Sc—CO-mixed dyestuff; a dyeing vessel for dyeing the textile by circulating the Sc—COand the Sc—CO-mixed dyestuff between the dyeing vessel and the dyestuff vessel; and one or more cyclone separators for removing the dyestuff from the Sc—CO-mixed dyestuff to obtain separated liquefied CO.