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Inkjet ink, method for producing inkjet ink, inkjet recording method, and ink cartridge

A manufacturing method and ink technology, which are applied in the directions of reproduction/marking methods, chemical instruments and methods, inks, etc., can solve the problems of image tone change, recorded material deterioration, recorded material color material deterioration, etc.

Inactive Publication Date: 2007-08-01
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, compared with silver salt photographs, the recorded matter obtained by the existing inkjet recording method has low fastness, and the recorded matter is exposed to light, humidity, heat, ambient gas in the air, etc. for a long time. , there are problems such as deterioration of the colorant on the recorded matter, and color tone changes and fading of the image are likely to occur
Among the above-mentioned ambient gases, the deterioration of recorded matter caused by ozone is particularly problematic

Method used

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  • Inkjet ink, method for producing inkjet ink, inkjet recording method, and ink cartridge
  • Inkjet ink, method for producing inkjet ink, inkjet recording method, and ink cartridge
  • Inkjet ink, method for producing inkjet ink, inkjet recording method, and ink cartridge

Examples

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Embodiment

[0143] Hereinafter, the present invention will be described in more detail using examples and comparative examples. However, the present invention is not limited by the following examples as long as the spirit of the present invention is not exceeded. In addition, unless otherwise specified, the ink components of Examples and Comparative Examples mean "parts by mass".

[0144]

[0145] (1) Synthesis of copper phthalocyanine tetrasulfonic acid tetrasodium salt (compound (2))

[0146] Compound (2)

[0147]

[0148] Mix sulfolane, 4-sulfophthalic acid monosodium salt, ammonium chloride, urea, ammonium molybdate, and copper(II) chloride, stir, and wash with methanol. Water was then added and the pH of the solution was adjusted to 11 using aqueous sodium hydroxide solution. A hydrochloric acid aqueous solution was added to the obtained solution with stirring, and sodium chloride was further slowly added thereto to precipitate crystals. The resulting crystals were filtered, ...

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Abstract

Disclosed is an inkjet ink containing at least a colorant which is composed of at least one material selected from the group consisting of C. I. Acid Blue 9 and compounds having a copper phthalocyanine structure, and a compound represented by the general formula (I) below or a salt thereof.

Description

technical field [0001] The present invention relates to an inkjet ink, a method for producing the inkjet ink, an inkjet recording method, and an ink cartridge. Background technique [0002] The inkjet recording method is a recording method for forming an image by applying small ink droplets on recording media such as plain paper and glossy media, and is rapidly spreading and developing as its price becomes lower and the recording speed increases. In addition, in addition to the continuous improvement of the quality of recorded images, with the rapid spread of digital cameras, users have requested to output recorded objects comparable to silver halide photographs. [0003] As the necessary requirements for the recorded matter obtained by the inkjet recording method to be comparable to the silver salt photograph, the requirement that the obtained recorded matter have both high color development and fastness can be mentioned. In addition, compared with silver salt photographs,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/00B41M5/00B41J2/01C09B47/00C09B47/06C09B67/22C09B67/44C09D11/326C09D11/328C09D11/38
CPCC09B47/26C09D11/322C09D11/328B41J2/01B41M5/00C09D11/40
Inventor 大角孝一须釜定之
Owner CANON KK
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