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Producing process for microfined organic pigment, microfined organic pigment and microfined organic pigment coloring composition

A coloring composition and organic pigment technology, applied in organic dyes, optics, instruments, etc., can solve problems such as enlargement and poor viewing angle characteristics, and achieve the effect of high miniaturization, high transparency, and bright colors

Active Publication Date: 2013-08-28
TOYO INK SC HOLD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] For diketopyrrolopyrrole pigments, the increase in retardation (taking a positive value) is particularly noticeable with the miniaturization by solvent salt grinding method, etc., and there is a problem of poor viewing angle characteristics

Method used

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  • Producing process for microfined organic pigment, microfined organic pigment and microfined organic pigment coloring composition
  • Producing process for microfined organic pigment, microfined organic pigment and microfined organic pigment coloring composition
  • Producing process for microfined organic pigment, microfined organic pigment and microfined organic pigment coloring composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0207] The following examples illustrate the present invention in more detail, but the following examples are by no means limiting the scope of rights of the present invention. In addition, "part" and "%" in an Example represent "weight part" and "weight%", respectively.

[0208] (test methods)

[0209]

[0210] First, primary particles of the pigment were photographed using a transmission electron microscope (manufactured by JEOL Ltd.) to obtain an image. The projected area of ​​each particle in the obtained image was measured using the image analysis type particle size distribution measurement software Mountech (Mantech Co., Ltd.), and the total particle projected area was divided by the number of particles to obtain the average particle diameter of the pigment particles.

[0211]

[0212] The amine value of the resin was obtained by potentiometric titration using a 0.1N hydrochloric acid aqueous solution, and then converted into the equivalent of potassium hydroxide. ...

Synthetic example 1

[0239] Into a 4-necked detachable flask equipped with a thermometer, a stirrer, a distillation tube, and a cooler, 62.4 parts of methyl ethyl ketone was added, and the temperature was raised to 75° C. under nitrogen flow. In addition, 19.5 parts of methyl methacrylate, 11.7 parts of n-butyl methacrylate, 11.7 parts of 2-ethylhexyl methacrylate, diethylene glycol monomethacrylate (manufactured by NOF) were added to the dropping funnel. , trade name: 7.8 parts of Braima (ブレンマー) PE90), 27.3 parts of dimethylaminoethyl methacrylate, 4.7 parts of 2,2'-azobis(2,4-dimethylvaleronitrile) and methyl ethyl ketone 15.6 parts, after mixing uniformly, was installed on a 4-necked detachable flask, and dripped for 2 hours. Two hours after the completion of the dropwise addition, it was confirmed that the polymerization yield was 98% or more based on the solid matter, and the weight average molecular weight (Mw) was 7130, and it was cooled to 50°C. 22.0 parts of benzyl chloride and 22.0 part...

Synthetic example 2

[0241]Into a 4-necked detachable flask equipped with a thermometer, a stirrer, a distillation tube, and a cooler, 80 parts of methyl ethyl ketone was added, and the temperature was raised to 75° C. under nitrogen flow. In addition, 20 parts of methyl methacrylate, 10 parts of n-butyl methacrylate, 5 parts of 2-ethylhexyl methacrylate, 16 parts of Braima PE901, and Kayama (Kayama) were added to the dropping funnel. PM-21 (manufactured by Nippon Kayaku Co., Ltd.: Phosphate ester of ε-caprolactone 1mol added with 2-hydroxyethyl methacrylate) 10 parts, dimethylaminoethyl methacrylate 25 parts, 2,2'- After mixing 6 parts of nitrogen bis(2,4-dimethylvaleronitrile) and 20 parts of methyl ethyl ketone evenly, they were installed in a 4-necked detachable flask and added dropwise for 2 hours. Two hours after the completion of the dropwise addition, it was confirmed that the polymerization yield was 98% or more based on the solid content, and the weight average molecular weight (Mw) was ...

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Abstract

The invention relates to a producing process for microfined organic pigment, a microfined organic pigment and a microfined organic pigmet coloring composition. the problem to be addressed is to provide a producing method for obtaining microfined organic pigment which can be applied on the coloring film of the liquid crystal television with low lantency, excellent view angle dependency, high transparency, a microfined organic pigment produced thereby, and microfined organic pigment coloring composition using the microfined organic pigment. The invention solves the problem by the producing process of the microfined organic pigment, which is characterized in that an organic pigment, a water-soluble inorganic salt, a water-soluble organic solvent and a resin (A) are mechanically compounded toobtain a compounding composition, then the water-soluble inorganic salt and the water-soluble organic solvent are removed by water, wherein the resin (A) has solubility of over a weight part with respect to 100 weight parts of water-soluble organic solvent under 25 DEG C., and containing an amino group and / or a quaternary ammonium cations.

Description

technical field [0001] An object of the present invention is to provide a method for producing a fine organic pigment, a fine organic pigment obtained by the production method, and a fine organic pigment coloring composition containing the fine pigment. Another object of the present invention is to provide a fine organic pigment coloring composition for offset ink, gravure ink, inkjet ink for printing, resist and ink for color filter, and paint. Background technique [0002] In organic pigments, for example, fine, sized (granulated) pigment particles can be obtained by selecting appropriate reaction conditions at the time of synthesis, as in the case of azo pigments. On the other hand, it is also known that extremely fine aggregated particles are formed during synthesis as in copper phthalocyanine green pigments, and the particles are grown and sized in subsequent steps to be pigmented. In addition, it is also known that, like copper phthalocyanine blue and diketopyrrolopyr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/20C09B67/22
CPCC09B67/0033C09B67/006C09B67/0096G02B5/223
Inventor 小谷卓也百濑雅俊山岸甫有吉泰三上让司松下奈津子斋藤悠生
Owner TOYO INK SC HOLD CO LTD
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