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Coloring composition and manufacturing method thereof

A technology for coloring compositions and mixtures, applied in the directions of radiation-absorbing coatings, organic dyes, filters, etc., can solve the problems of reducing non-ionic impurities, reducing brightness, inability to remove brightness, etc., and achieving excellent spectroscopic properties and improved brightness. , Excellent effect of liquid crystal display device

Inactive Publication Date: 2014-03-19
TOYO INK SC HOLD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, only by washing the pigment with an organic solvent, although the ionic impurities that adversely affect the liquid crystal display can be reduced, the colored or colorless non-ionic impurities that reduce the brightness cannot be removed.
[0008] When pigments containing colored or colorless non-ionic impurities are used in materials for electronic devices that require high-purity pigments, especially color filters that require high-purity pigments, they can cause fatal brightness reduction.

Method used

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  • Coloring composition and manufacturing method thereof
  • Coloring composition and manufacturing method thereof
  • Coloring composition and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～26 and comparative example 1～17

[0182] According to the compounding composition shown in Table 1-A and Table 1-B, the mixture was uniformly stirred and mixed, using zirconia beads with a diameter of 0.1 mm, dispersed with a pico mill for 10 hours, and filtered with a 5 μm filter. Prepare various color pigment dispersions.

[0183] Next, after stirring and mixing the mixture of the following composition until it becomes uniform, it filtered with a 1 micrometer filter, and prepared the coloring composition.

[0184] Pigment dispersion 60.0 parts

[0185] Photopolymerization initiator

[0186] (Ciba Specialty Chemicals, "Irgacure 907") 1.2 parts

[0187] Dipentaerythritol pentaacrylate and hexaacrylate

[0188] ("ARONIX M400" produced by Toagosei Co., Ltd.) 4.2 copies

[0189] Sensitizer ("EAB-F" manufactured by Hodogaya Chemical Co., Ltd.) 0.4 parts

[0190] 11.0 parts of acrylic resin solution prepared previously

[0191] 23.2 parts of cyclohexanone

[0192] The obtained coloring composition was coated on a glass substrate...

Embodiment 27

[0209] 45 parts of the red coloring composition obtained in Example 3 and 5 parts of the yellow coloring composition obtained in Example 15 were mixed to obtain a red coloring composition of Example 27. The film thickness was adjusted so that the final x under the F10 light source reached 0.602, the resulting coloring composition was coated, and dried under reduced pressure, and then ultraviolet exposure was performed using an ultra-high pressure mercury lamp with a cumulative light intensity of 150 mJ and an illuminance of 30 mW. After heating the coated substrate at 230°C for 1 hour and letting it cool, the chromaticity "Y" of the red filter section obtained under the F10 light source was measured using a microscopy spectrophotometer ("OSP-SP100" produced by Olympus Optical Company) , X, y".

Embodiment 28

[0215] 30 parts of the green coloring composition obtained in Example 5 and 20 parts of the yellow coloring composition obtained in Example 15 were mixed to obtain a green coloring composition of Example 28. The film thickness was adjusted so that the final y under the F10 light source was 0.556, the resulting coloring composition was coated, and dried under reduced pressure, and then ultraviolet exposure was performed using an ultra-high pressure mercury lamp with a cumulative light intensity of 150 mJ and an illuminance of 30 mW. After heating the coated substrate at 230°C for 1 hour and letting it cool, the chromaticity "Y" of the green filter section obtained under the F10 light source was measured using a microscopy spectrophotometer ("OSP-SP100" produced by Olympus Optical Company) , X, y".

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Abstract

The invention relates to a coloring combination, containing a pigment carrier made up of transparent resin, prosoma thereof or transparent resin and a mixture of the prosoma, a red pigment which has an absorption value of 8.8-14.0 and a wavelength range from 400 to 575 nm, or a green pigment which has an absorption value of 11.2-13.0 and a wavelength range from 600 to700nm,or a blue pigment which has an absorption value of 9.0-12.0 and a wavelength range from 550 to 650 nm, or a yellow pigment which has an absorption value of 5.0-10.0 and a wavelength range from 400 to 500 nm. The coloring combination is prepared through washing the pigment with a strong alkali, then dispersing the pigment in the pigment carrier made up of a transparent resin, a prosoma thereof or a transparent resin and a mixture of the prosoma.

Description

Technical field [0001] The present invention relates to a coloring composition suitable for use in the production of a color filter constituting a color liquid crystal display device, a color imaging tube element, etc., and a production method thereof. Background technique [0002] In recent years, liquid crystal display devices have been used in television monitor applications, personal computer monitor applications, mobile applications, etc. For the color filters used therein, the brightness, color purity, and the formation of color filter sections (also called When used as a filter segment, the level of requirements for various characteristics such as coating uniformity, sensitivity, developability, and pattern shape is getting higher and higher. Moreover, due to long-term use, the requirements for quality such as heat resistance and light resistance are also strong. In particular, with the spread of liquid crystal display devices, from the viewpoints of energy saving and low...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/00G02B5/20
CPCC09D5/32C09D7/41
Inventor 西田充志加藤干也
Owner TOYO INK SC HOLD CO LTD