Coated substrate for use in ink-jet printers
AssigneeImperial Chemical Industries PLC
InventorsRichard Anthony Hann, Barry Pack, Alan Butters, Jeffrey Michael Howell
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Abstract
The present invention relates to a coating material for producing a porous ink-absorbent coating on a substrate to be used in ink-jet printers, comprising radiation curable material and particulate material in a liquid carrier, wherein the weight ratio of particulate material to radiation curable material is greater than 1:1. Also disclosed is a process for preparing a coated substrate using such a coating material. Advantageously, the coating material of the present invention does not crack upon curing, and conveniently forms a porous coating having a glossy surface, while retaining a porous structure for ink-absorption.
Claims10
A coating material for producing a porous ink-absorbent coating on a substrate to be used in ink-jet printers, comprising ultraviolet radiation curable material and particulate material in a liquid carrier, wherein the weight ratio of particulate material to ultraviolet radiation curable material is greater than 1:1.
A coating material according to any one of the preceding claims, wherein the liquid carrier is an aqueous carrier.
A coating material according to any one of the preceding claims, wherein the particulate material is an inorganic material.
A coating material according to any one of the preceding claims, wherein the particulate material is fumed silica.
A method of making a coated substrate for use in ink-jet printers, comprising the steps of applying to at least one surface of the substrate a coating material comprising ultraviolet radiation curable material and particulate material in a liquid carrier, wherein the weight ratio of particulate material to ultraviolet radiation curable material is greater than 1:1, and irradiating the coating material while still wet with ultraviolet radiation to form a porous, glossy ink-absorbent coating on the substrate.
Dependencies are inferred from the claim text.