Flexible printed material
AssigneeHewlett-Packard Development Company, L.P.
InventorsBoris Kaziev, Inna Tzomik, Faina Kogan
Life of this patent
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Abstract
A method of forming a flexible printed material is described. The method comprises applying a layer of primer onto a flexible substrate; electrostatically printing onto the layer of primer a liquid electrostatic ink composition; applying a curable overprint varnish composition onto the printed electrostatic ink composition and curing the overprint varnish composition using electron beam irradiation. The curable overprint varnish composition comprises an ethylenically unsaturated monomer, an ethylenically unsaturated oligomer, or mixtures thereof, and less than 10 wt. % of a cross-linking additive based on the total weight of the curable overprint varnish composition. A flexible package comprising the flexible printed material is also described.
Claims15
A method of forming a flexible printed material, comprising:
- applying a layer of primer onto a flexible substrate;
- electrostatically printing onto the layer of primer a liquid electrostatic ink composition;
- applying a curable overprint varnish composition onto the printed electrostatic ink composition, wherein the curable overprint varnish composition comprises an ethylenically unsaturated monomer, an ethylenically unsaturated oligomer, or mixtures thereof, and 10 wt. % or less of a cross-linking additive based on the total weight of the curable overprint varnish composition;
- and
- curing the overprint varnish composition using electron beam irradiation.
A flexible printed material, comprising:
- a flexible substrate;
- a primer layer disposed on the flexible substrate;
- an electrostatic ink composition printed on the primer layer;
- and
- an overprint varnish composition on the printed electrostatic ink composition, wherein the curable overprint varnish composition is formed from an ethylenically unsaturated monomer, an ethylenically unsaturated oligomer, or mixtures thereof, and less than 10 wt. % of a cross-linking additive based on the total weight of the curable overprint varnish composition.
A flexible package, comprising a flexible printed material comprising:
- a flexible substrate;
- a primer layer disposed on the flexible substrate;
- an electrostatic ink composition electrostatically printed on the primer layer;
- and
- an overprint varnish composition on the printed electrostatic ink composition, wherein the overprint varnish composition is formed from an ethylenically unsaturated monomer, an ethylenically unsaturated oligomer, or mixtures thereof, and less than 10 wt. % of a cross-linking additive based on the total weight of the curable overprint varnish composition.
Dependencies are inferred from the claim text.