Patents by Inventor Yee Man Edwin Keh

Yee Man Edwin Keh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Reactive dye bath and dyeing process for textiles
    Patent number: 10604891
    Abstract: The present invention relates to a reactive dye bath and a dyeing process for textiles. The reactive dye bath for textiles comprises an organic solvent, an aqueous dye solution, a surfactant and a co-surfactant. The reactive dye bath or the dyeing process of the present invention allows for full up-take of the dye without subjecting the textiles to any special pre-treatment and without the addition of a salt for accelerating dyeing, so as to obtain dyed textiles with a higher dyeing depth, uniformity and fastness.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: March 31, 2020
    Assignee: The Hong Kong Research Institute of Textiles and Apparel Limited
    Inventor: Yee Man Edwin Keh