Coating composition for corrugated paper board
AssigneeHewlett-Packard Development Company, L.P.
InventorsFereshteh Khorrami, Xulong Fu
Life of this patent
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Abstract
A coating composition for a corrugated paper board is described. The corrugated paper board includes an inner liner sheet and an outer liner sheet adhered to opposite sides of a corrugated medium. The coating composition includes a pre-coat layer and a topcoat layer. The pre-coat layer includes an ink fixer agent and a pigment, and is disposed on one or both of the liner sheets. The topcoat layer is disposed on top of the pre-coat layer to form an ink receiving layer. The topcoat layer includes a wax and is devoid of the ink fixer agent.
Claims14
A coating composition for a corrugated paper board, the corrugated paper board including an inner liner sheet and an outer liner sheet adhered to opposite sides of a corrugated medium, the coating composition comprising:
- a pre-coat layer including an ink fixer agent and a pigment, disposed on one or both of the liner sheets, wherein the ink fixer agent consists of a water-soluble mono-valent metallic salt or a water-soluble multi-valent metallic salt, wherein the metallic salt consists of (i) a cation of a metal selected from the group consisting of Group I metals, Group II metals, Group III metals, transition metals, and combinations thereof, and (ii) an anion selected from the group consisting of chloride, iodide, bromide, nitrate, sulfate, sulfite, phosphate, chlorate, acetate, and combinations thereof;
- and
- a topcoat layer disposed on top of the pre-coat layer, to form an ink receiving layer;
- wherein the topcoat layer includes a wax and is devoid of the ink fixer agent.
A corrugated paper board, comprising:
- a corrugated medium;
- an inner liner sheet and an outer liner sheet adhered to opposite sides of the corrugated medium;
- and
- a coating composition formed on one or both of the liner sheets, the coating composition including:
- a pre-coat layer including an ink fixer agent and a pigment, wherein the ink fixer agent consists of a water-soluble mono-valent metallic salt or a water-soluble multi-valent metallic salt, wherein the metallic salt consists of (i) a cation of a metal selected from the group consisting of Group I metals, Group II metals, Group III metals, transition metals, and combinations thereof, and (ii) an anion selected from the group consisting of chloride, iodide, bromide, nitrate, sulfate, sulfite, phosphate, chlorate, acetate, and combinations thereof;
- and
- a topcoat layer on the pre-coat layer, wherein the topcoat layer includes a wax and is devoid of the ink fixer agent.
A method, comprising:
- forming a coating composition by:
- applying a pre-coat fluid on a liner sheet, wherein the pre-coat fluid includes an ink fixer agent and a pigment, wherein the ink fixer agent consists of a water-soluble mono-valent metallic salt or a water-soluble multi-valent metallic salt, wherein the metallic salt consists of (i) a cation of a metal selected from the group consisting of Group I metals, Group II metals, Group III metals, transition metals, and combinations thereof, and (ii) an anion selected from the group consisting of chloride, iodide, bromide, nitrate, sulfate, sulfite, phosphate, chlorate, acetate, and combinations thereof;
- drying the applied pre-coat fluid to form a pre-coat layer;
- applying a topcoat fluid on the pre-coat layer, wherein the topcoat fluid includes a wax and is devoid of the ink fixer agent;
- and
- drying the topcoat fluid to form a topcoat layer;
- and
- printing an ink on the coating composition, thereby forming a printed liner sheet.
Dependencies are inferred from the claim text.