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Fine yellow pigment combination, pigment dispersion having the combination and manufacturing method of the fine yellow combination

A yellow pigment and composition technology, applied in the directions of pigment paste, chemical instruments and methods, azo dyes, etc., to achieve the effect of improving the contrast ratio and being easy to manufacture

Active Publication Date: 2012-04-04
SANYO COLOR WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, even if these technologies are used, there is still room for improvement in improving the contrast ratio, etc.

Method used

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  • Fine yellow pigment combination, pigment dispersion having the combination and manufacturing method of the fine yellow combination
  • Fine yellow pigment combination, pigment dispersion having the combination and manufacturing method of the fine yellow combination
  • Fine yellow pigment combination, pigment dispersion having the combination and manufacturing method of the fine yellow combination

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0090] (Production Example 1) Preparation of Triazine Pigment Derivative (A)

[0091] Add 7.3 g of cyanuric chloride and 6.8 g of p-aminobenzenesulfonic acid (trade name: ASA p-sulfanilic acid, manufactured by Sugai Chemical Industry Co., Ltd. ), reacted at 20°C for 1 hour. Then add 10 g of 4,4'-methylene-di-2,6-xylaniline (trade name: KAYABOND C-200S, manufactured by Nippon Kayaku) in an amount reacted with 1 C1 of the reactant, at 70 °C for 1 hour. The obtained reactant was filtered, and the residue was washed with water, and then left to stand overnight in a thermostat at 80°C for drying to obtain 17.0 g of a triazine derivative (A) represented by the following formula (9).

[0092] Formula (9)

[0093]

manufacture example 2

[0094] (Production Example 2) Preparation of Triazine Pigment Derivative (B)

[0095] 10 g of 3,3'-dichlorobenzidine was added to 100 g of water to disperse it, and 7.3 g of cyanuric chloride in an amount reacting with one amino group was added and reacted at 20°C for 1 hour. Then, 13.7 g of p-aminobenzenesulfonic acid was added and reacted at 90° C. for 1 hour to obtain 26.6 g of a triazine pigment derivative (B) having a structure of the following formula (10).

[0096] Formula (10)

[0097]

Embodiment 1

[0099] In a high-speed mixer (manufactured by KAWATA Company, Super Mixer SMV-20), 500 g of Yellow 138 (trade name "Paliotol Yellow L0960HD, manufactured by BASF Company) as a quinophthalone pigment, anhydrous Glauber's salt as a water-soluble inorganic salt ( The average particle diameter is about 5 μm, 5000 g of anhydrous Glauber's salt described in Japanese Patent Laid-Open No. 2009-263501, 1045 g of ethylene glycol as a water-soluble organic solvent, 50 g of sulfonated pigment derivatives represented by the following formula (11), and manufactured 25 g of the triazine pigment derivative (A) of Example 1 was pre-mixed for about 2 minutes, and mixed uniformly.

[0100] This mixture was supplied to a continuous kneader (Miracle KCK32 manufactured by Asada Iron Works Co., Ltd.). The kneading conditions were an extrusion rate of 6.6 kg / h, a rotational speed of 90 rpm, and grinding and kneading while controlling the temperature so that the temperature of the kneaded product was ...

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Abstract

The invention provides a fine yellow pigment combination, which can improve the contrast ratio when applied as ink for coating a color filter. The fine yellow pigment combination comprises quinophthalone pigment, sulfonated quinophthalone pigment derivative, and special triazine type pigment derivative. The fine yellow pigment combination is formed by grinding and mixing the quinophthalone pigment, sulfonated quinophthalone pigment derivative, and special triazine type pigment derivative in a condition with a temperature lower than 60 degrees.

Description

technical field [0001] The present invention relates to a yellow pigment composition, and more specifically, to a fine yellow pigment composition containing a finely divided yellow pigment. Background technique [0002] In printing inks or paints, such as inks for inkjet printers and inks for color filters, pigments are dispersed in a fine state to exhibit high tinting strength, so that colored objects such as printed matter or painted objects have a clear appearance The adaptability of color tone, gloss, etc., and make the coating film of color filter etc. have the adaptability of chroma, contrast ratio (contrast ratio) and so on. In recent years, higher sharpness, gloss, chroma, contrast ratio, etc. have been demanded in these applications. [0003] As one of the countermeasures, a method of miniaturizing the pigment is adopted. However, in general, pigment particles temporarily dispersed in a mixture of water, solvent, resin, etc. (vehicle such as paint or ink) tend to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22C09D11/02C09D17/00C09B25/00C09B67/20C09B67/46
CPCC09B25/00C09B62/04C09B67/0033C09B67/0084
Inventor 藤田纯平松原康洋
Owner SANYO COLOR WORKS