Ink, ink cartridge and ink jet recording method

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United States of America Patent

PATENT NO 8932394
SERIAL NO

13946018

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Abstract

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The present invention provides an ink jet ink that is capable of recording an image excellent in light resistance and ozone resistance and has excellent intermittent ejection stability. The ink jet ink contains a coloring material and a water-soluble organic solvent. The coloring material contains a compound represented by the following general formula (I), the water-soluble organic solvent contains ethylene urea end an alkanediol having 4 to 6 carbon atoms, and a content A (% by mass) of the coloring material, a content B (% by mass) of the ethylene urea and a content C (% by mass) of the alkanediol having 4 to 6 carbon atoms based on a total mass of the ink satisfy relationships of 0.20≦B/A≦10.0 and 0.10≦C/A≦10.0.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ikegami, Masayuki Atsugi, JP 74 1118
Iwata, Tetsu Yokohama, JP 24 517
Kudo, Satoshi Kawasaki, JP 76 764
Ogasawara, Masashi Machida, JP 66 1116
Saito, Takashi Kawasaki, JP 527 6566
Sakai, Junichi Machida, JP 67 769
Tsujimura, Masashi Kawasaki, JP 21 638

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