Patents Assigned to Girobank A?S
  • Patent number: 5534049
    Abstract: A flexographic printing ink comprising a solvent, a colorant, a binder and additives, wherein the solvent is essentially water; the colorant is a water-soluble dye or a mixture of such dyes dissolved in the solvent; the binder is selected from (meth)acrylic resins dispersed in the solvent at a pH above 7, preferably at pH about 8-9; and the additives include a wax selected from the group consisting of polyolefin waxes, paraffin waxes, and mixed polyolefin and paraffin waxes dispersed in the solvent. A flexographic printing ink concentrate for preparing this printing ink comprising the components mentioned above, wherein the amount of solvent is reduced by about 1-20%, preferably 5-20%, compared with the amount of solvent in a flexographic printing ink ready for use.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: July 9, 1996
    Assignee: Girobank A?S
    Inventors: Eva Wallstrom, Peter B. Lund, Arne Helgesen