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Trisazo compound, ink composition, and colored object

A compound, triazo technology, applied in the direction of triazo dyes, etc., can solve the problem of not fully meeting the requirements of ozone gas resistance, ozone gas resistance can not fully meet market requirements, can not fully meet market requirements and other problems , to achieve the effect of excellent discharge stability, good storage stability and good filterability

Inactive Publication Date: 2006-12-27
NIPPON KAYAKU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ozone gas resistance of these compounds is not sufficient to meet market requirements
In addition, as compounds structurally similar to the pigment compound for black ink of the present invention, compounds described in Patent Documents 2 and 3 can be cited, but they cannot fully satisfy market requirements, particularly the ozone gas resistance. Require

Method used

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  • Trisazo compound, ink composition, and colored object
  • Trisazo compound, ink composition, and colored object
  • Trisazo compound, ink composition, and colored object

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1

[0110] After reacting 20.1 parts of 2-amino-5-naphthol-1,7-disulfonic acid and 12.6 parts of p-toluenesulfonyl chloride at pH 8.0 to 8.5 at 70° C. for 1 hour, the obtained product was salted out under acidity and filtered. 28.4 parts of the compound of formula (4) was dissolved in 300 parts of water with sodium carbonate at pH 6.0 to 8.0, 18.7 parts of 35% hydrochloric acid was added, and then 0 to 5°C was added, 10.7 parts of 40% nitrous acid was added Aqueous sodium solution for diazotization.

[0111]

[0112] To this diazotized suspension was added a liquid obtained by suspending 19.1 parts of 4-amino-5-hydroxynaphthalene-1,7-disulfonic acid in 200 parts of water, and then the pH of the solution was adjusted to carbonic acid at 10 to 20°C. The sodium was stirred at 2.4-2.8 for 12 hours. After stirring, the pH was adjusted to 7.0 to 8.5 with sodium carbonate and dissolved to obtain a solution containing the monoazo compound of the formula (6).

[0113]

[0114] 14.4...

Embodiment 1-2

[0121] Except having changed 11.0 parts of 4-methoxyaniline-2-sulfonic acid of Example 1-1 to 11.7 parts of 5-sulfoanthranilic acid, 36.2 parts of the present invention were obtained in the same manner as in Example 1-1. A compound of formula (12) (Compound No. 2 in Table 2). The maximum absorption wavelength of this compound in water is 591 nm, and the solubility in water is 100 g / l or more.

[0122]

Embodiment 1-3

[0124] Except having changed 11.0 parts of 4-methoxyaniline-2-sulfonic acid in Example 1-1 to 9.8 parts of 2-aminoterephthalic acid, 30.4 parts of the formula of the present invention were obtained in the same manner as in Example 1-1 (13) The compound of (Compound No. 3 in Table 2). The maximum absorption wavelength of this compound in water is 590 nm, and the solubility in water is 100 g / l or more.

[0125]

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PUM

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Abstract

To provide: a black compound which is for use in ink-jet recording or writing utensils, is excellent in ozone resistance, light resistance, moisture resistance, and color rendering, and gives a recording fluid having satisfactory storage stability; and an ink composition containing the compound. The black compound is a trisazo compound represented by the following formula (1) or a salt thereof. (1) [In the formula (1), R<1> and R<2> each independently represents hydrogen, carboxy, sulfo, hydroxy, a C1-4 alkyl, C1-4 alkoxy, or sulfo group optionally substituted by C1-4 alkoxy, an optionally carboxylated C1-4 alkoxy group, etc.; and A represents phenyl or naphthyl (provided that the phenyl and naphthyl groups may be substituted by halogeno, carboxy, sulfo, sulfamonyl optionally substituted by alkyl or phenyl, nitro, etc.)].

Description

technical field [0001] The present invention relates to novel trisazo compounds or salts thereof, ink compositions containing these substances, and color bodies produced therefrom. Background technique [0002] Among various color recording methods, a recording method by an ink jet printer, which is one of the representative methods, is a recording method in which ink droplets are generated and adhered to various recording materials (paper, film, cloth, etc.) for recording. method. Since the recording head does not come into contact with the material to be recorded, this method produces a small and quiet sound, and has the characteristics of miniaturization and easy speed-up, so it has rapidly spread in recent years, and great growth is expected in the future. Conventionally, as inks for fountain pens, plastic core pens, etc., and inks for inkjet printing and recording, aqueous inks in which water-soluble dyes are dissolved in an aqueous medium have been used. In these wate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B33/22
Inventor 松井贵彦大野博昭米田孝川井田芳明白崎康夫
Owner NIPPON KAYAKU CO LTD
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