Pigment composition of triarylmethane and rhodamine, and pigment dispersion using same

A technology of pigment composition and pigment dispersion, applied in the direction of pigment slurry, azo dyes, organic dyes, etc., can solve the problems of poor heat resistance and light resistance, and achieve the effect of excellent light resistance and heat resistance

Active Publication Date: 2011-01-26
SANYO COLOR WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, compared with phthalocyanine pigments, etc., triarylmethane dyes and pigments have disadvantages of inferior heat resistance and light resistance.

Method used

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  • Pigment composition of triarylmethane and rhodamine, and pigment dispersion using same
  • Pigment composition of triarylmethane and rhodamine, and pigment dispersion using same
  • Pigment composition of triarylmethane and rhodamine, and pigment dispersion using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] As shown in Table 1, add 10 parts of untreated C.I. Pigment Blue 1 and 1 part of sodium 2-naphthalenesulfonate to 250 parts of 2.5% acetic acid aqueous solution, stir thoroughly with a disperser, raise the temperature to 80°C and stir for 2 hours . The obtained slurry was filtered, and the precipitate was washed with water, and dried overnight at 80° C. to obtain 9.9 parts of the target pigment composition.

[0045] 5 parts of the pigment composition, 36.7 parts of propylene glycol monomethyl ether acetate, and 8.3 parts of a polymer dispersant (BYK 170, manufactured by BYK Chemie Japan Co., Ltd.) were added to the lacquer together with 0.5 mm zirconia beads. After dispersing in the bottle for 1 hour with a paint conditioner, 0.2 parts of an acrylic resin (SPC-2000, Showa Polymer Co., Ltd.) was added to obtain a blue pigment dispersion.

Embodiment 2～11

[0047] The blue pigment dispersions of Examples 2-11 were obtained by the same method as Example 1 using each component shown in Table 1. It should be pointed out that in Examples 9 and 10, the surfactant was added to the aqueous acetic acid solution together with 1 part of C.I. Pigment Blue 1 and 1 part of sodium 2-naphthalenesulfonate.

Embodiment 12～13

[0061] As shown in Table 2, 4.65 parts of untreated C.I. Pigment Blue 1, 0.35 parts of sodium 2-naphthalenesulfonate, 36.7 parts of propylene glycol monomethyl ether acetate, 8.3 parts of polymer dispersant (BYK 170, BYK Chemie Japan (manufactured by the company) and φ0.5mm zirconia beads were added to the paint bottle, and after dispersing with a paint conditioner for 1 hour, 0.2 parts of acrylic resin (SPC-2000, Showa Polymer Co., Ltd.) was added to obtain a blue pigment dispersion body.

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PUM

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Abstract

The invention aims at providing a lake pigment which exhibits excellent light resistance and heat resistance and has a triarylmethane structure and/or a rhodamine structure, and a pigment dispersion using the lake pigment. Therefore, the invention provides a pigment composition, which is characterized in that an untreated pigment of the lake pigment with the triarylmethane structure and/or the rhodamine structure is treated by an organic acid selected from substituted or unsubstituted aryl sulfonic acid and substituted or unsubstituted aryl carboxylic acid.

Description

technical field [0001] The present invention relates to a triarylmethane-based and rhodamine-based pigment composition, specifically, the present invention relates to a triarylmethane-based and rhodamine-based pigment composition having excellent light resistance and heat resistance, and a pigment combination using these pigment dispersions. Background technique [0002] Conventionally, triarylmethane-based dyes and pigments have been used in the fields of toners, jet printing inks, color filters, and the like (Patent Documents 1 to 4). [0003] However, triarylmethane-based dyes and pigments have disadvantages of inferior heat resistance and light resistance compared with phthalocyanine pigments and the like. For this reason, there have been attempts to overcome this drawback. For example, an attempt has been made to develop a color filter using a triphenylmethane dye-containing polymer (Patent Document 5). In addition, use of a salt of a triaryl methane and an organic a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/14C09B67/22C09D17/00
CPCC07D498/04C09B11/28C09B35/21C09B63/00C09B67/006
Inventor 菅野敏彦谷原润一
Owner SANYO COLOR WORKS
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