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Green pigment dispersion liquid for color filter and preparation method of green pigment dispersion liquid

A color filter and green pigment technology, applied in the field of green pigment dispersion and its preparation, can solve the problems of reducing the dispersion effect of dispersants on pigments, high difficulty and difficulty in synthesis, and achieve good storage stability and excellent viscosity performance , the effect of simplifying the composition of the formula

Pending Publication Date: 2022-02-25
XIAN SMART MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the synthesis of this compound is difficult, and the ratio of each material needs to be precisely controlled during the synthesis, and the obtained triazine compound needs to be purified and refined, and the process is cumbersome; secondly, increasing the triazine compound in the pigment dispersion makes the dispersant and the triazine compound At the same time, it has a competitive effect on the surface adsorption of the pigment, which will reduce the dispersion effect of the dispersant on the pigment; and in the formulation design of the dispersion, adding any kind of material will inevitably cause the problem of matching and compatibility with other materials, thus causing dispersion Difficulties in liquid formulation adjustment
[0005] Patent CN108070279A uses phthalimide and its derivatives as additives in the preparation of pigment dispersions, but there are also problems such as compound synthesis, competitiveness of additives and dispersants, and difficulty in formula adjustment.

Method used

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  • Green pigment dispersion liquid for color filter and preparation method of green pigment dispersion liquid
  • Green pigment dispersion liquid for color filter and preparation method of green pigment dispersion liquid
  • Green pigment dispersion liquid for color filter and preparation method of green pigment dispersion liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Put 12.5g G58, 5.0g dispersant PB-821 (solid content 100%, acid value 17mgKOH / g, amine value 9mgKOH / g) into a 100mL material bottle, 8.8g dispersion resin SPC-2000 (solid content 37.9%) and 73.7g PMA (solvent propylene glycol methyl ether acetate), add 100g, zirconia beads with a diameter of 0.3 to 0.4mm; the material bottle that has been fed is placed on the coating rapid disperser for 4h for processing; after the dispersion is over, remove Zirconia beads yield a pigment dispersion.

[0062] Green pigment "G58" manufactured by DIC Co., Ltd. was used as a commercially available pigment, dispersant PB-821 of Ajinomoto Co., Ltd. was used as a commercially available pigment, and dispersion resin SPC of Showa Denko Co., Ltd. was used as a commercially available pigment -2000.

Embodiment 2

[0064] Put 12.5g G58 into a 100mL material bottle, 5.0g dispersant PB-822 (solid content 100%, acid value 14mgKOH / g, amine value 17mgKOH / g), 8.8g dispersion resin SPC-2000 (solid content 37.9%) and 73.7g of solvent propylene glycol methyl ether acetate, add 100g of zirconia beads with a diameter of 0.3 to 0.4mm; place the material bottle that has been fed and disperse it on a coating rapid disperser for 4 hours; after the dispersion is completed, remove the zirconia beads A pigment dispersion liquid was obtained.

[0065] Green pigment "G58" manufactured by DIC Co., Ltd. was used as a commercially available pigment, dispersant PB-822 of Ajinomoto Co., Ltd. was used as a commercially available pigment, and dispersion resin SPC of Showa Denko Co., Ltd. was used as a commercially available pigment -2000.

Embodiment 3

[0067] Put 12.5g G58, 5.0g dispersant PB-824 (solid content 100%, acid value 20mgKOH / g, amine value 17mgKOH / g) into a 100mL material bottle, 8.8g dispersion resin SPC-2000 (solid content 37.9%) and 73.7g of solvent propylene glycol methyl ether acetate, add 100g of zirconia beads with a diameter of 0.3 to 0.4mm; place the material bottle that has been fed and disperse it on a coating rapid disperser for 4 hours; after the dispersion is completed, remove the zirconia beads A pigment dispersion liquid was obtained.

[0068] Green pigment "G58" manufactured by DIC Co., Ltd. was used as a commercially available pigment, dispersant PB-824 of Ajinomoto Co., Ltd. was used as a commercially available pigment, and dispersion resin SPC of Showa Denko Co., Ltd. was used as a commercially available pigment -2000.

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Abstract

The invention relates to a green pigment dispersion liquid for a color filter and a preparation method of the green pigment dispersion liquid. The dispersion liquid comprises the following components: phthalocyanine pigment, a dispersing agent, resin and a solvent. The dispersion liquid is simple in formula, and the pigment dispersion liquid with excellent viscosity performance and good storage stability is obtained on the premise of not using any derivative, so that the defects of complex synthesis and formula are overcome.

Description

technical field [0001] The invention belongs to the field of TFT-LCD display materials, and relates to a green pigment dispersion used for color filters and a preparation method thereof. Background technique [0002] The color filter used in the TFT-LCD liquid crystal display is made by forming three primary color RGB patterns on a glass substrate. The RGB color patterns of the color filter are formed by using a photoresist composition containing pigments, photosensitive resins, polymerizable monomers, photoinitiators, additives and solvents, etc., using the principle of photocuring. [0003] Since the pigment used in the photoresist has a high degree of agglomeration characteristics, it cannot guarantee uniform dispersion and good storage stability when it is directly applied to the preparation process of the photoresist composition, which will lead to the viscosity of the photoresist As the temperature rises, the coatability of the glass substrate will deteriorate, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/46G03F7/004G02F1/1335
CPCC09B67/0084G03F7/004G02F1/133514
Inventor 吴朝新赵江波赵炎
Owner XIAN SMART MATERIALS CO LTD
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