Title:
INKJET INK, INKJET CARTRIDGE, INKJET RECORDING APPARATUS, INKJET RECORDING METHOD, IMAGE FORMING METHOD AND INK DOCUMENT
Document Type and Number:
Japanese Patent JP2010084116
Kind Code:
A
Abstract:
To provide an inkjet ink which is excellent in image quality and high-speed printing adaptation on plain paper, has good storage stability and ejection stability and gives less load on maintenance devices for an inkjet recording apparatus.
An inkjet ink includes a water dispersion of pigment-containing water-insoluble vinyl polymer particles, a water-soluble organic solvent and water, wherein the ink residue obtained by leaving the inkjet ink to stand under conditions of a temperature of 25C and a humidity of 15% until substantially no mass change occurs, has a viscosity of 3,000 mPa s or less, and wherein the inkjet ink, the pH of which is adjusted to 7 with an acid, has a viscosity of 500 mPa s or more.
Inventors:
GOTO HIROSHI
WATARAI YUKITAKA
KATSURAGI KOJI
NAGASHIMA HIDEFUMI
WATARAI YUKITAKA
KATSURAGI KOJI
NAGASHIMA HIDEFUMI
Application Number:
JP2009001145A
Publication Date:
April 15, 2010
Filing Date:
January 06, 2009
Export Citation:
Assignee:
RICOH KK
International Classes:
B41J2/01; B41M5/00; C09D11/00; C09D11/322; C09D11/324; C09D11/326; C09D11/38
Domestic Patent References:
| JP2002338783A | 2002-11-27 | |||
| JP2007262205A | 2007-10-11 | |||
| JP2007197658A | 2007-08-09 | |||
| JP2008184567A | 2008-08-14 | |||
| JP2006249393A | 2006-09-21 | |||
| JP2002338783A | 2002-11-27 |