Water-base ink composition
US7442244B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 18, 2005 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Jul 22, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24802
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
There is provided a water-base ink composition which has excellent ejection stability and can be evenly printed on recording media. The water-base ink composition comprises at least: a colorant component selected from dyes and pigments; a monovalent or divalent branched alcohol with C5 to C10 chain length; an acetylene glycol surfactant and/or a penetrating organic solvent; a humectant; and water. The monovalent or divalent branched alcohol with C5 to C10 chain length, the acetylene glycol surfactant and/or the penetrating organic solvent, and the humectant are selected from combinations of branched alcohols, acetylene glycol surfactants and/or penetrating organic solvents, and humectants which are miscible with one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.