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

Abstract

Disclosed is an inkjet ink containing at least a colorant which is composed of at least one of C. I. Food Black 2 and C. I. Direct Black 195, and a compound represented by the general formula (I) below or a salt thereof.

Description

[0001] This application is a divisional application of an application with a filing date of August 30, 2005, an application number of 200580029083.6, and an invention title of "inkjet ink, manufacturing method of inkjet ink, inkjet recording method, and ink cartridge". technical field [0002] 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 [0003] 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. [0004] As the necessary requirements for th...

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 (especially ozone resistance), and the recorded matter is exposed to light, humidity, heat, and air in the air for a long time. When exposed to ambient air, etc., 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

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