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Monoazo/iron complex compound, charge control agent comprising the same, and toner

A technology of coordination compounds and charge control agents, which is applied to the complex metal compounds of azo dyes, azo dyes, developers, etc., can solve the problems of fire, explosion, drying and crushing process hazards, etc., and achieve the change of charging characteristics Small size, good kneading dispersibility, and high charge-enhancing effect

Inactive Publication Date: 2007-03-28
HODOGAYA KAGAKU IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, among them, all the ones with good performance are azo coordination compounds having several nitro groups, and the synthesis of the compounds is always accompanied by the risk of fire and explosion.
Especially when iron is used as the core metal, fires and explosions occur significantly, and the drying and crushing processes become extremely dangerous operations

Method used

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  • Monoazo/iron complex compound, charge control agent comprising the same, and toner
  • Monoazo/iron complex compound, charge control agent comprising the same, and toner
  • Monoazo/iron complex compound, charge control agent comprising the same, and toner

Examples

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Embodiment 1

[0187] Hereinafter, although an Example demonstrates this invention, these do not limit the scope of the present invention. In addition, all "parts" in an Example represent "parts by mass".

manufacture example 1

[0188] [Production Example 1] Production of Compound of Formula (2)

[0189] Add 57.4 parts of 4-chloro-2-aminophenol to 580 parts of water and 84 parts of 35% hydrochloric acid, and dissolve with stirring under cooling. At an internal temperature of 10°C or lower, 28.2 parts of sodium nitrite dissolved in 50.7 parts of water was dropped into the above hydrochloric acid aqueous solution, and the temperature was maintained at 5-10°C while adding 50 parts of appropriate crushed ice. After the dropwise addition was terminated, the reaction was stirred at 10° C. for 2 hours. Add 7.3 parts of sulfamic acid, react for 10 minutes, confirm with potassium iodide starch test paper that no excess nitrous acid remains, and prepare a diazo solution.

[0190]Then, 101 parts of 3-methyl-1-(3,4-dichlorophenyl)-5-pyrazolone was added to a mixed solution of 475 parts of water, 95 parts of sodium carbonate and 840 parts of n-butanol, Stir at room temperature to dissolve. Inject the above diaz...

manufacture example 2

[0204] [Production Example 2] Another production example of the compound of formula (2)

[0205] Add 68 parts of 4-chloro-2-aminophenol to 500 parts of water and 147 parts of 35% hydrochloric acid, stir and dissolve under cooling. At an internal temperature of 10°C or lower, 33.4 parts of sodium nitrite dissolved in 61.6 parts of water was dropped into the above hydrochloric acid aqueous solution, and the temperature was maintained at 5-10°C while adding 40 parts of appropriate crushed ice. After the dropwise addition was terminated, the reaction was stirred at 10° C. for 2 hours. Add 6.8 parts of sulfamic acid, react for 10 minutes, confirm with potassium iodide starch test paper that no excess nitrous acid remains, and prepare a diazo solution.

[0206] Then, 117.5 parts of 3-methyl-1-(3,4-dichlorophenyl)-5-pyrazolone was added to a mixed solution of 616 parts of water, 113.6 parts of sodium carbonate and 660 parts of n-butanol, Stir at room temperature to dissolve. Injec...

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Abstract

An excellent charge control agent which contains no harmful metals, has no fear of readily igniting or exploding, and has a large charge amount and a high rate of initial electrification; and a toner of the negative electrification type. Also provided is a monoazo / iron complex compound represented by the formula [1]. [In the formula (1), J represents H, an alkali metal, ammonium, or alkylammonium or represents a combination of two or more of these].

Description

technical field [0001] The present invention relates to a charge control agent used in an image forming apparatus for developing an electrostatic latent image in the fields of electrophotography, electrostatic recording, etc., and an electronegative toner containing the charge control agent. Background technique [0002] In an image forming method using electrophotography, an electrostatic latent image is formed on a photoreceptor made of an inorganic or organic material, developed with a toner, copied onto paper or plastic film, etc., and fixed to obtain a visible image. The photoreceptor can be negatively or positively charged depending on its structure, and when the printed part remains as an electrostatic latent image by exposure, it is developed with an oppositely charged toner. On the other hand, when the printing part is decharged and reversed development is performed, the development is performed with a chargeable toner of the same symbol. [0003] Toner is composed...

Claims

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Application Information

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IPC IPC(8): C09B45/14C07D231/46C09B45/22G03G9/087G03G9/097
Inventor 大久保正树大塚英之根本一男伊藤雅美山田英祐
Owner HODOGAYA KAGAKU IND
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