Patents Assigned to NIKWAX LIMITED
  • Patent number: 11047089
    Abstract: The present invention relates to a process for cleaning and/or washing down and/or feathers comprising: (a) mixing the down and/or feathers with a solution of an alkyl polyglucoside; (b) optionally adding simultaneously or sequentially a solution of a Group 4 metal salt to the mixture of (a); (c) removing excess liquid; and (d) optionally drying the down and/or feathers. Down and/or feathers prepared according to such a process are also disclosed. The invention additionally relates to a down and/or feather washing and/or cleaning composition for rendering the down and/or feathers hydrophobic comprising a solution of an alkyl polyglucoside, optionally a solution of a Group 4 metal salt, and a water-repellent treatment. The invention further relates to a kit for cleaning and/or washing down and/or feathers and rendering the down and/or feathers water repellent.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: June 29, 2021
    Assignee: Nikwax Limited
    Inventors: Nicholas Brown, David John Ellis
  • Patent number: 10533279
    Abstract: A process to remove excess dye from dyed polyester fabric comprising adding a solution of a weak organic acid to the fabric in a dyeing vessel, raising the temperature in the vessel to at least 80° C., allowing the acid to react with the fabric for at least 6 minutes and removing all liquid.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: January 14, 2020
    Assignee: NIKWAX LIMITED
    Inventors: David John Ellis, Nicholas Brown