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Ink-jet ink composition, ink set, and image forming method

a technology of inkjet ink and composition, applied in the direction of inks, liquid surface applicators, coatings, etc., can solve the problem of not providing a sufficient level of ink ejection stability

Active Publication Date: 2013-03-19
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the image recording method described in JP-A No. 2007-100071 does not provide a sufficient ink ejection stability in some cases.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

examples

[0242]Hereinafter, the present invention will be further described in detail with reference to the following examples, but it should be construed that the invention is in no way limited to those examples. Note that, if not otherwise specified, “part(s)” and “%” are on the basis of mass.

[0243]The weight average molecular weight was measured by gel permeation chromatography (GPC). In GPC, HLC-8220GPC (trade name, manufactured by Tosoh Corporation) was used, and 3 pieces of columns, TSKgel Super HZM-H, TSKgel SuperHZ 4000, and TSKgel SuperHZ 2000, connected in series (trade name, all manufactured by Tosoh Corporation) were used as the column, and THF (tetrahydrofuran) was used as an eluate. Further, the measurement was performed by using an RI detector under the conditions at a sample concentration of 0.35% by mass, a flow rate of 0.35 mL / min, a sample ejection amount of 10 μL, and a measuring temperature of 40° C. A calibration curve was prepared based on eight samples of “standard sa...

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PUM

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Abstract

An ink-jet ink composition comprising: a pigment, a polymer pigment dispersion, polymer particles, a hydrophilic organic solvent, water, and at least one of a water-soluble acidic compound having a molecular weight of 200 or less or a salt thereof in an amount of from 50 ppm to 1,000 ppm; an ink set that includes the ink-jet ink composition and a treatment liquid that forms an aggregate when contacted with the ink-jet ink composition; and an image forming method using the ink set.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority under 35 USC 119 from Japanese Patent Application No. 2009-049631 filed on Mar. 3, 2009, the disclosure of which is incorporated by reference herein.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to an ink-jet ink composition, an ink set, and an image forming method.[0004]2. Description of the Related Art[0005]Ink-jet recording methods use a large number of nozzles arranged in an ink-jet head, from which ink droplets are ejected when recording is performed. Ink-jet recording methods are widely used, because they make it possible to record high-quality images on a variety of recording media.[0006]As the ink-jet recording methods, a two-part reactive ink recording method is known, in which two kinds of liquids including an ink and a treatment liquid serving to aggregate the ink are reacted so as to aggregate the ink and to promote the fixation of the ink. For exa...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): C09D11/10C08K5/09
Inventor YANAGI, TERUKAZUISHIZUKA, TAKAHIROTAMURA, AKIOKATO, TAKAHIRO
Owner FUJIFILM CORP