Ink jet recording material and method of producing same
AssigneeOji Paper Co., Ltd.
InventorsBo Liu, Tomomi Takahashi, Shun-ichiro Mukoyoshi, Masami Kubota
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Abstract
An ink jet recording material having one or more ink receiving layers formed on a substrate and capable of recording clear ink images with a satisfactory gloss, a high color density and an enhanced water resistance is provided with at least one ink receiving layer containing agglomerate pigment particles pulverized in a cationic resin-containing liquid and having an average particle size of 1 μm or less.
Claims8
A method of producing an ink jet recording material having one or more ink receiving layers formed on a substrate, wherein at least one of the ink receiving layers is formed by the steps of:
- mixing a cationic-resin into an aqueous dispersion of pigment particles to cause the pigment particles to agglomerate with each other and the dispersion to exhibit an increased viscosity, and to prepare an agglomerated pigment dispersion;
- pulverizing and dispersing the agglomerated pigment dispersion to adjust the average particle size of the pulverize-dispersed agglomerated pigment particles to 1 μm or less, to provide a coating dispersion;
- coating or impregnating a substrate with the coating dispersion;
- and
- drying the coated or impregnated coating dispersion on or in the substrate to form the ink receiving layer.
Dependencies are inferred from the claim text.