发明名称 |
INKJET INK, INK CARTRIDGE, INKJET RECORDING APPARATUS, INKJET RECORDING METHOD AND IMAGE FORMING APPARATUS |
摘要 |
<p>The present invention provides an inkjet ink which is excellent in image quality and high-speed printing on plain paper, in storage stability and in ejection stability and gives less load on a maintenance device for an inkjet recording apparatus; and an ink cartridge, an inkjet recording apparatus, and an inkjet recording method, using the inkjet ink. An inkjet ink containing a water dispersion of pigment-containing water-insoluble vinyl polymer particles; a water-soluble organic solvent; and water, wherein an ink residue from the inkjet ink has a viscosity of 3,000 mPa·s or less, the ink residue is obtained by leaving the inkjet ink to stand at a temperature of 25° C. and a humidity of 15% until substantially no mass change occurs, and wherein the inkjet ink, pH of which is adjusted to 7 with an acid, has a viscosity of 500 mPa·s or more.</p> |
申请公布号 |
EP2328982(A4) |
申请公布日期 |
2014.04.23 |
申请号 |
EP20090811601 |
申请日期 |
2009.09.02 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
GOTO, HIROSHI;WATARAI, YUKITAKA;KATSURAGI, KOJI;NAGASHIMA, HIDEFUMI |
分类号 |
C09D11/00;B41J2/01;B41M5/00;C09D11/322;C09D11/324;C09D11/326;C09D11/38 |
主分类号 |
C09D11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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