Patents by Inventor Anette Heindl

Anette Heindl 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).

  • Process for the end-to-end dyeing of cellulosic fibres: desalted direct dye and migration inhibitor
    Patent number: 5147410
    Abstract: The invention relates to a process for the end-to-end dyeing of cellulosic fibres or cellulosic fibre blends with direct dyes by the pad dyeing process, which comprises padding said fibre materials with an aqueous liquor containing one or more deionized dyes and a migration inhibitor, then expressing the padded goods and subsequently fixing the dye thereon.The process of the invention is suitable for dyeing textile cellulosic fibres or cellulosic fibre blends end-to-end in shades of good allround fastness properties.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: September 15, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Anette Heindl, Rudolf Schaulin, Thomas Stockhorst