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Pigment dispersion and yellow resist composition for color filter and ink composition containing the pigment dispersion

A technology of pigment dispersion and pigment yellow, applied in pigment slurry, chemical instruments and methods, instruments, etc., can solve problems such as weak light fastness, and achieve the effect of excellent dispersibility

Inactive Publication Date: 2014-11-12
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this dye is known to have weaker light fastness than pigments

Method used

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  • Pigment dispersion and yellow resist composition for color filter and ink composition containing the pigment dispersion
  • Pigment dispersion and yellow resist composition for color filter and ink composition containing the pigment dispersion
  • Pigment dispersion and yellow resist composition for color filter and ink composition containing the pigment dispersion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0128] A mixture of 5 parts of C.I. Pigment Yellow 185 (manufactured by BASF Japan, Ltd. under the trade name "PALIOTOL YELLOW D1155") and 0.5 parts of compound (1) was mixed with 48 parts of polyester resin and 120 parts of ethyl acetate and ground with an ultrafine mill A pulverizer (manufactured by Mitsui Mining Co., Ltd.) was dispersed for 3 hours to obtain the pigment dispersion (1) of the present invention. The SEM photo of the pigment dispersion (1) is shown in figure 2 .

Embodiment 2

[0130] Pigment dispersion (2) was obtained by the same procedure as in Example 1, except that Compound (1) of Example 1 was changed to 1.5 parts of Compound (2) and ethyl acetate was changed to toluene.

Embodiment 3

[0132] Pigment dispersion (3) was obtained by the same procedure as in Example 1, except that Compound (1) of Example 1 was changed to 1.0 part of Compound (3) and ethyl acetate was changed to methyl ethyl ketone.

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Abstract

An object of the present invention is to provide a pigment dispersion excellent in the dispersibility of C.I. Pigment yellow 185. The present invention provides a pigment dispersion wherein C.I. Pigment yellow 185 and a compound represented by the following formula (1) are dispersed in a dispersing medium: Formula (1)

Description

technical field [0001] The present invention relates to pigment dispersions used in the production steps of paints, inks, color filters, resin moldings, and the like. The present invention further relates to a yellow resist composition for color filters and an ink composition containing a pigment dispersion as a colorant. Background technique [0002] In recent years, with the explosive growth of color images, the demand for higher image quality has been growing. In a full-color digital copier or printer, color image data is color-separated by respective color filters of blue, green, and red, and then rendered corresponding to the original color using respective color developers of yellow, magenta, cyan, and black. Latent image development of the image. In this regard, the tinting power of the colorant of each color developer greatly affects image quality. However, for pigment dispersion in various media, it is often difficult to make the pigment particles fine enough or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22C09B67/20C09B67/46C09D11/00C09D17/00G02B5/20G02B5/22G03F7/004C09B29/42C09B57/04
CPCC09D11/00G03F7/027G03F7/105G03F7/0007C09B57/04G02B5/223C09D11/322G03F7/004C09B29/0007C09B29/3626C09B67/0013C09B67/0041C09B67/0033C09B67/0084G02B5/20C08K5/3432C08K5/3477C09D11/037
Inventor 森省诚关口武史新藤太一胜本有子氏房孝行宫崎健
Owner CANON KK
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