PIGMENT DISPERSION, METHOD FOR PREPARING THE PIGMENT DISPERSION, INKJET INK USING THE PIGMENT DISPERSION, METHOD FOR PREPARING THE INKJET INK, INK CARTRIDGE CONTAINING THE INKJET INK, IMAGE FORMING METHOD AND APPARATUS USING THE INKJET INK, AND PRINT IMAGE PRODUCED BY THE IMAGE FORMING METHOD AND APPARATUS
US6786959B2 · kind B2 · utility
16Cited by
9References
23Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 18, 2003 |
| Grant date | Sep 7, 2004 |
| Priority date | — |
| Expiry date | Apr 18, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/38
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pigment dispersion including a pigment; a dispersant; and a dispersion medium including water, wherein the pigment is dispersed in the dispersion medium, wherein the average particle diameter D50 of the pigment is not greater than 50 nm and the standard deviation of the pigment particle diameter distribution thereof is less than the average particle diameter D50. An inkjet ink including the pigment dispersion and at least one of water, a water-soluble organic solvent and a surfactant. A method and apparatus for forming an image using the inkjet ink. An image produced by the image forming method and apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.