Inkjet recording ink composition and recorded matter

An ink composition, ink jet recording technology, applied in the direction of ink, application, household appliances, etc., to achieve the effect of inhibiting hard cake and rapid re-dispersion

Inactive Publication Date: 2013-09-11
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in inkjet recording inks, the problem of sedimentation of inorganic pigments in a short period of time and hard cake formation cannot be solved.

Method used

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  • Inkjet recording ink composition and recorded matter

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Embodiment Construction

[0026] Preferred embodiments of the present invention will be described below. The embodiment described below is for explaining an example of the present invention. In addition, this invention is not limited to the following embodiment, Various modification examples implemented in the range which do not change the summary of this invention are included.

[0027] 1. Ink composition for inkjet recording

[0028] The ink composition for inkjet recording (hereinafter also referred to as "ink composition") according to this embodiment contains an average particle diameter (D A ) is an inorganic pigment (A) and an inorganic particle (B) of 200 nm or more. Hereinafter, each component contained in the ink composition for inkjet recording which concerns on this embodiment is demonstrated in detail.

[0029] 1.1. Inorganic pigments (A)

[0030] The ink composition according to this embodiment contains an inorganic pigment (A). Usually white pigments are mostly inorganic pigments. ...

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Abstract

The invention provides an inkjet recording ink composition and recorded matter, the inkjet recording ink composition can prevent hardening process even if inorganic pigment settled, and fast redispersion can be realized by simple stirring. The ink jet recording ink composition includes an inorganic pigment (A) having an average particle diameter (DA) of equal to or more than 200 nm and an inorganic particle (B). The inorganic particle (B) is preferably a silica particle or an alumina particle.

Description

technical field [0001] The present invention relates to an ink composition for inkjet recording, and more particularly, to an ink composition for inkjet recording and a recorded matter containing an inorganic pigment that easily settles. Background technique [0002] Conventionally, inks containing metal oxides such as titanium dioxide, zinc oxide, aluminum oxide, and magnesium oxide, and white inorganic pigments such as barium sulfate and calcium carbonate have been used in various printing methods. Among them, inorganic pigments such as titanium dioxide and zinc oxide are increasingly used from the viewpoint of low cost. [0003] However, since these inorganic pigments have a high specific gravity, there is a problem of a specific gravity difference between them and a solvent, and they tend to settle in the ink. If such an ink is left for a long time, the inorganic pigment settles and hardens, and becomes difficult to redisperse (hereinafter, this state is also referred t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/02
CPCC09D11/322Y10T428/24901C09D11/38B32B5/16
Inventor 盐野翔平佐野强
Owner SEIKO EPSON CORP
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