Patents by Inventor Wolfgang Brehme

Wolfgang Brehme 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 fixing reactive dyes on cellulosic textile material: enclosing moistened dyed textile in water-proof material and heating
    Patent number: 5273551
    Abstract: The invention relates to a process for fixing reactive dyes on cellulosic textile material and to apparatus for carrying out said process.The process comprises wetting the dried fibre material, which has been printed with reactive dyes, with water, covering the printed material with water-impermeable material and subjecting it to a heat treatment. The fixation can be carried out with advantage using minor amounts of urea, but preferably without urea, to give prints of good quality.
    Type: Grant
    Filed: July 24, 1992
    Date of Patent: December 28, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Brehme, Rolf Hopf