Vanadium-drier intaglio ink
AssigneeSicpa Holding SA
InventorsOlivier Lefebvre, Christophe Schaller, Pierre Degott, Edgar Müller
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Abstract
An oxidatively curing intaglio printing ink is disclosed, comprising an oxidatively curable polymer, an anionic macromolecular surfactant, a wax component, and a salt of vanadium, preferably of the vanadyl (VO2+) ion, as the oxypolymerization inducing siccativating agent.
Claims25
Oxidatively curing oil-based printing ink composition for the engraved copper-plate intaglio printing process, comprising:
- a vanadyl (VO2+) ion bound to an anionic macromolecular surfactant (AMS), wherein the AMS comprises at least two acid groups separated by at least one conjugated double bond;
- at least one oxidatively curable material;
- at least one wax component;
- and
- at least one pigment or filler,
- wherein said ink composition has a total viscosity of at least 3 Pa·s at 40° C. and a shear rate of 1000 s−1.
Siccativating compound for use in an oxidatively curing printing ink, comprising at least one anionic macromolecular surfactant (AMS), and a vanadyl (VO2+) ion bound to the AMS, wherein the AMS comprises at least two acid groups separated by at least one conjugated double bond.
Process for producing an oxidatively curing oil-based printing ink composition for the engraved copperplate intaglio printing process, comprising:
- adding together a vanadyl (VO2+) ion, an anionic macromolecular surfactant (AMS) comprising at least two acid groups separated by at least one conjugated double bond, at least one oxidatively curable material, at least one wax component, and at least one pigment or filler to form a composition having a total viscosity of at least 3 Pa·s at 40° C. and a shear rate of 1000 s−1.
Process for producing a siccativating compound, comprising adding a vanadyl (VO2+) ion as the oxypolymerisation-inducing siccativating agent to at least one anionic macromolecular surfactant, wherein the AMS comprises at least two acid groups separated by at least one conjugated double bond.
Dependencies are inferred from the claim text.