Black pigment composition and black coating film formation composition including the black pigment composition

A black pigment and composition technology, applied in the field of black pigment composition and black coating film forming composition containing it, and black coating film forming composition, can solve problems such as irregularity, large gap distance deviation, light leakage, etc. Achieves the effect of inhibiting absorption and good solvent resistance

Pending Publication Date: 2017-12-29
SANYO COLOR WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the method using bead spacing, it is pointed out that there are problems that light leakage may occur because the beads are only randomly dispersed in the gap, and the gap distance may become large, making it difficult to control mechanical properties such as elasticity.

Method used

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  • Black pigment composition and black coating film formation composition including the black pigment composition
  • Black pigment composition and black coating film formation composition including the black pigment composition
  • Black pigment composition and black coating film formation composition including the black pigment composition

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0162] (Production Example 1) Production of Pigment Derivative 1

[0163] With respect to 200 parts by weight of chlorosulfonic acid, pigment red 255 (manufactured by BASF Corporation, product name Irgazin Red L3551HD) was added so that 20 parts by weight and thionyl chloride became 10 parts by weight, and after reacting at 60° C. for 5 hours, it was discharged to 2 1 liter of ice water, filtered and washed with water to obtain 26.9 parts by weight of the chlorosulfonyl compound of Pigment Red 255. Make it dispersed in 200 parts by weight of water, add 8.3 parts by weight of diethylaminopropylamine, react at 80°C for 1 hour, filter, wash with water, dry and pulverize to obtain 31.5 parts by weight of the following formula (3): Pigment derivative 1 shown.

[0164]

manufacture example 2

[0165] (Production Example 2) Production of Pigment Derivative 2

[0166] Add pigment violet 23 (manufactured by DIC Corporation, product name Violet 23 Crude) to 20.4 parts by weight and thionyl chloride to 20 parts by weight with respect to 200 parts by weight of chlorosulfonic acid, react at 60° C. for 5 hours, and discharge to 2 liters of ice water was filtered and washed with water to obtain 27.2 parts by weight of a chlorosulfonyl compound of Pigment Violet 23. Make it dispersed in 200 parts by weight of water, add 15 parts by weight of diethylaminopropylamine, react at 80°C for 1 hour, filter, wash with water, dry and pulverize to obtain 31.9 parts by weight of the following formula (4): Pigment derivative 2 shown.

[0167]

manufacture example 3

[0168] (Production Example 3) Production of Pigment Derivative 3

[0169] After charging 200 parts by weight of 88% sulfuric acid into a 300 ml three-necked flask, 20 parts by weight of Pigment Red 255 (manufactured by BASF Corporation, product name Irgazin Red L3551HD) was charged under water cooling, and reacted at 40 to 45° C. for 3 hours. Sulfonated. Next, after discharging this synthetic stock solution into a beaker with 1L of water, filter it, transfer the paste to a 2L beaker, add 1.5L of water, and stir at 60-70°C for 1 hour to fully disperse , adding 1 weight part of cetyltrimethylammonium chloride, and performing salt production. After stirring for about 10 minutes, it was filtered and washed with water, and the obtained paste was dried at 100° C. to obtain a pigment derivative 3 represented by the following formula (5).

[0170]

[0171] (DM-3)

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Abstract

The present invention provides a black pigment composition that can absorb light in a visible light region without using carbon black and can suppress absorption of infrared rays and ultraviolet rays and has good solvent resistance and a black coating film-forming composition containing the black pigment composition. The black pigment composition comprises at least one black organic pigment selected from the following formulas (1) and (2), at least two kinds of colored organic pigments other than the black organic pigment, a dispersant, and a solvent; and a black coating film-forming composition containing the black pigment composition and a coating film forming component.

Description

technical field [0001] The present invention relates to a black pigment composition and a black coating film-forming composition containing the same, and more particularly to a black pigment composition and a black coating film containing the black pigment composition used for the black column intervals of a flat panel provided, for example, in a liquid crystal display device Form the composition. Background technique [0002] A liquid crystal display device has a liquid crystal cell structure in which a liquid crystal substance is filled between two glass substrates provided with opposing transparent electrodes. Furthermore, in order to maintain the inter-substrate gap uniformly between the two glass substrates and provide a good image, a post spacer is inserted. Currently, as such a column spacer, a bead spacer such as bead glass can be used. However, in the method of using the bead spacer, it is pointed out that there is a problem that light leakage may occur because th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/004
CPCG03F7/004C09B57/12C09B67/0084C09D7/41
Inventor 野泽贵博
Owner SANYO COLOR WORKS
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