Patents Examined by A. Lionel Clineman
  • Patent number: 4427412
    Abstract: A process is described for printing dyes onto a textile material comprising the steps of forming a latent magnetic image in a magnetic imaging member comprising a ferromagnetic material on an electrically conductive support; developing the magnetic image by applying a ferromagnetic toner comprising a ferromagnetic component, a dye component which is substantially sublimable at from 160.degree. C. to 215.degree. C.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: January 24, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Emery J. Gorondy
  • Patent number: 4420307
    Abstract: A process is described for dyeing a disperse dyeable material such as a textile or film, comprising the steps of: forming a latent magnetic image in a magnetic imaging member comprising a ferromagnetic material on an electrically conductive support; developing the magnetic image by applying thereto a ferromagnetic toner comprising a ferromagnetic component, a dye compnent containing a dye which is substantially sublimable at from 160.degree. to 215.degree. C., and a resin, which substantially encapsulates the ferromagnetic component and the dye component; transferring the developed image to a paper sheet, applying a thermally stable sublimable-dye-permeable polymeric material to the side of the paper sheet bearing the toner image material into contact with a textile material to be dyed; and heating the textile material and paper sheet to thereby transfer the dye image from the paper sheet through the polymeric material to form a dye image in the textile material.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: December 13, 1983
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventor: Emery J. Gorondy