Ink composition

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United States of America Patent

PATENT NO 8841356
SERIAL NO

13499106

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Abstract

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Disclosed is an ink composition which has superior storage stability, is resistant to bleeding, has good fixability to paper, and enables printing of a clear image. The ink composition includes a pigment dispersion containing a surface-treated pigment and a resin emulsion, wherein the surface-treated pigment is obtained by binding a functional group, having a larger calcium index than a calcium index of 1,2,3-benzenetricarboxylic acid, to the surface of a pigment; and the resin emulsion is adapted so that an aqueous solution containing 1 mass % of a solid content of the resin emulsion has a conductance of 300 μS/cm or less.

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Patent Owner(s)

Patent OwnerAddress
DNP FINE CHEMICALS CO LTD450 AOTO-CHO MIDORI-KU YOKOHAMA-SHI KANAGAWA 2260022 ?2260022

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Inumaru, Masaki Tokyo-to, JP 6 51
Ishitobi, Tatsuro Tokyo-to, JP 9 35
Matsuo, Rumiko Tokyo-to, JP 1 7
Miyata, Eiichi Tokyo-to, JP 3 45
Otomaru, Takao Tokyo-to, JP 4 45
Shioda, Satoshi Tokyo-to, JP 15 132
Shiraishi, Naoki Tokyo-to, JP 35 375
Sugita, Yukio Tokyo-to, JP 47 477
Tamura, Mitsuyoshi Tokyo-to, JP 21 196
Yamazaki, Fumie Tokyo-to, JP 25 142

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