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Transparent coloured composition and colour filter

A coloring composition, transparent technology, applied in dyeing high molecular organic compound treatment, dyeing low molecular organic compound treatment, instruments, etc., can solve the problems that pigment particles are easy to agglomerate and difficult to obtain coloring composition

Inactive Publication Date: 2004-10-06
TODA IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the coloring pigment and silica particles are separately added to the coloring composition, the pigment particles tend to aggregate, and as a result, it is difficult to obtain a coloring composition for color filters with high transparency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0197]

[0198] Silica particle powder (particle shape: spherical, the average particle size of the primary particles is 17nm, the BET specific surface area value is 211.3m2 / g, the geometric standard deviation value of the primary particles is 1.27, the volume average particle size (Dp 50 )1.66μm, maximum volume particle size (Dp 99 ) 2.61μm, refractive index 1.42, L * Value 93.39, a * Value 0.12, b * Value 0.26, C * Value 0.28, light resistance 5.48) 7.0kg, add 560g of methyl hydrogen polysiloxane to the silica particle powder while running the roller mill, and mix and stir for 30 minutes with a linear load of 588N / cm (60Kg / cm) . In addition, the stirring speed at this time was 22 rpm.

[0199] Next, add organic pigment G-1 (type: phthalocyanine pigment, particle shape: granular, average particle size: 96nm, BET specific surface area value of 66.4m) over 30 minutes while running the roller rolling machine 2 / g, L * Value 31.77, a * Value -21.28, b * Value 3.06, light resistance ...

Embodiment 2

[0202]

[0203] As organic pigments, in addition to using organic pigment B-1 (type: phthalocyanine pigment, particle shape: granular, average particle size: 83nm, BET specific surface area value 81.6m2 / g, L * Value 24.41, a * Value 6.01, b * Value -12.63, light resistance ΔE * Except for the value 10.68), the organic-inorganic composite pigment (B) was obtained in the same manner as in the production of the organic-inorganic composite pigment (G) of Example 1.

[0204] The obtained organic-inorganic composite pigment (B) was spherical particles with an average primary particle diameter of 19 nm. BET specific surface area is 65.9m 2 / g, the geometric standard deviation of primary particles is 1.27, and the volume average particle size (Dp 50 ) Is 0.98μm, the largest volume particle size (Dp 99 ) Is 1.39μm, medium hue L * Value is 26.19, a * Value is 6.98, b * Value is -11.93, tinting strength is 141%, light fastness ΔE * The value is 1.31, the degree of detachment of the organic ...

Embodiment 3

[0206]

[0207] As organic pigments, in addition to using organic pigment R-1 (type: phthalocyanine pigment, particle shape: granular, average particle size: 130nm, RET specific surface area value 81.6m 2 / g, L * Value 37.95, a * Value 43.24, b * Value 23.28, light resistance ΔE * Except the value 10.13), in the same manner as in the production of the organic-inorganic composite pigment (G) of Example 1, an organic-inorganic composite pigment (R) was obtained.

[0208] The obtained organic-inorganic composite pigment (R) was spherical particles with an average primary particle diameter of 19 nm. RET specific surface area is 63.8m 2 / g, the geometric standard deviation of primary particles is 1.27, and the volume average particle size (Dp 50 ) Is 0.96μm, the largest volume particle size (Dp 99 ) Is 1.36μm, L in hue * The value is 39.83, a * The value is 42.96, b * Value is 21.83, tinting strength is 156%, light fastness ΔE * The value is 1.88, the degree of detachment of the organ...

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PUM

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Abstract

The transparent coloring composition comprises a solvent and an organic-inorganic composite pigment comprising fine white inorganic particles and an organic pigment adhered to the surface of the respective fine white inorganic particles, or fine white inorganic particles, a surface modifier coated on the surface of the respective fine white inorganic particles and an organic pigment adhered onto the surface modifier coating layer, primary particles of the composite pigment having an average particle diameter of 1 to 100 nm. The transparent coloring composition for color filter comprises the above transparent coloring composition and a transparent resin containing at least one acid group and / or latent acid group. The color filter is produced by applying a film-forming material made of the above transparent coloring composition for color filter on a substrate. The transparent coloring composition is suitable as a coloring composition for color filter because of excellent dispersibility and spectral properties. Further, the color filter produced from the transparent coloring composition can be suitably used as color filters for color liquid crystal displays (LCD) or the like owing to the excellent spectral properties.

Description

Technical field [0001] The present invention relates to a transparent coloring composition and a color filter. Specifically, it relates to a transparent coloring composition containing an organic-inorganic composite pigment having a sharp particle size distribution, excellent light resistance, and excellent spectral characteristics, and a transparent coloring composition obtained from the coloring composition The photosensitive transparent coloring composition, a color filter obtained from the transparent coloring composition or the photosensitive transparent coloring composition. Background technique [0002] The pigment is coated on the surface of the substrate together with the vehicle to cover the original hue of the substrate and transform it into the hue of the pigment itself. It has been found that the concealment power of a pigment is the sum of the surface reflection of incident light, absorption and scattering due to the pigment (Edited by the Color Material Association...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C3/10C09C1/02C09C1/30C09C1/36C09C1/40C09C3/08
CPCC09C1/027C01P2006/12C01P2004/64B82Y30/00Y10T428/2998C09C1/40C09C3/08C09C1/3063C09C1/3669C01P2004/62C01P2004/61E03C1/2665B09B3/00
Inventor 市村国宏林一之森井弘子
Owner TODA IND
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