US 6,723,784 B2 · Coating liquid, and image recording method and recording using same

Abstract

A coating liquid for forming a transparent topcoat, without requiring a hardening or fixing process that uses heating or UV radiation. The coating liquid imparts light resistance, water resistance, fixation, and glossiness to recordings. Also, a recording method using the coating liquid, and recordings produced thereby. The liquid, which is applied to recorded images, contains at least water, fine polymer particles, and a penetrating agent, preferably a penetrating agent selected acetylene glycol surfactants, acetylene alcohol surfactants, glycol ethers, and 1,2-alkylene glycols. Also, an image recording method for forming an even, transparent coating layer by spraying the coating liquid during an ink jet recording process, as well as recordings produced thereby.

Claims43

Dependent claims

A coating liquid comprising components that provide a transparent topcoat to a recorded image coated with the coating liquid, said components comprising:

at least water, fine polymer particles, a penetrating agent and at least one substance having a structure represented by formula (I):
R-EOn-POm-X formula (I)
where R represents an alkyl group having 1 to 12 carbons, structure of which may be either a straight chain or branched;
X represents —H or —SO3M;
where M is a counter ion that is a hydrogen ion, alkaline metal ion, ammonium ion, or organic ammonium ion;
EO represents an ethylene oxy group;
PO represents a propylene oxy group;
n and m are repeating units, indicating mean values in the substance of formula (I);
EO and PO indicate presence in the substance, with order thereof being irrelevant, said coating liquid having a surface tension at 20° C. that is 40 mN/m or less.

6 more elements

Dependencies are inferred from the claim text.

Coating liquid, and image recording method and recording using same

Life of this patent

Coating liquid, and image recording method and recording using same

Life of this patent

Abstract

Claims43