Patents Assigned to Zipatone, Inc.
  • Graphic arts ink and eradicator combination
    Patent number: 4252845
    Abstract: An ink and eradicator system for use in the graphic arts comprising an ink containing a dye which is reducible to a colorless form in combination with a volatile acid and a non-volatile organic acid, dissolved to an aqueous solvent; and an ink eradicator containing a soluble sulfite or phosphite reducing agent and an aliphatic organic amine, dissolved in an aqueous solvent.
    Type: Grant
    Filed: November 30, 1978
    Date of Patent: February 24, 1981
    Assignee: Zipatone, Inc.
    Inventors: Kenneth G. Griffiths, Arnel D. Potter