Ink, image forming method, image forming apparatus, and recorded matter

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United States of America Patent

PATENT NO 9873809
SERIAL NO

15194832

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Abstract

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Ink includes a coloring material, an organic solvent, and water, wherein the ink satisfies the following requisites:

    I. the organic solvent includes an organic solvent X having a solubility parameter (SP value) of 8.9-12.0,II. the organic solvent includes glycol ether compound (compound Z) having a vapor pressure of 50 mmHg or greater at 100 degrees C., andIII. a mass ratio of the organic solvent X to the glycol ether compound is 1:1-8:1.

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Patent Owner(s)

Patent OwnerAddress
RICOH COMPANY LTDTOKYO

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gotou, Hiroshi Shizuoka, JP 116 2193
Katoh, Keita Kanagawa, JP 41 657
Sakaguchi, Hiromi Kanagawa, JP 27 158
Takamura, Yukiko Wakayama, JP 8 106
Yokohama, Yuuki Kanagawa, JP 34 506

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