Methods and compositions for printable surface pre-treatment
AssigneePrintar Ltd.
InventorIzhar Halahmi
Life of this patent
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Abstract
Methods and aqueous surface coating compositions are provided for producing a high-resolution ink-jet ink printable coating layer on a surface, the composition comprising at least one polymer selected from a water soluble polymer and a water-emulsifiable polymer, wherein the at least one polymer is present in a concentration of up to 10% by weight and at least one surfactant comprising a long hydrophobic moiety, wherein the at least one surfactant is present in a concentration of up to 10% by weight. The high-resolution ink-jet ink printable coating layer is characterized by its ability to be removed by spraying with water, and yet having excellent resistance to heat and acid, when coated with cured legend ink.
Claims27
An aqueous polymer solution, useful as surface coating on mat and semi mat solder mask surfaces, to provide an optimized surface tension for high-resolution ink-jet ink, the composition comprising:
- a) at least one polymer selected from a water soluble polymer and a water-emulsifiable polymer, wherein said at least one polymer is present in a concentration of up to 60% by weight;
- and
- b) at least one surfactant, comprising a long hydrophobic moiety, wherein said at least one surfactant is present in a concentration of up to 10% by weight, wherein said composition is adapted to provide a removable, coating layer of an optimized surface tension of 15-70 dynes/cm for high-resolution ink-jet ink.
Dependencies are inferred from the claim text.