Ink composition for ink-jet recording and method of ink-jet recording
US6500248B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 14, 2000 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Jun 14, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/322
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An ink composition for ink jet recording is provided which comprises at least a pigment, a 1,2-alkanediol, glycerin, a polyhydric alcohol derivative and/or an acetylene glycol surfactant, a water-soluble organic solvent, and water, the pigment having been surface treated to render the pigment dispersible and/or dissolvable in water without any dispersant, the 1,2-alkanediol being at least one member selected from the group consisting of 1,2-butanediol, 1,2-pentanediol, and 1,2-hexanediol, the ink composition having a surface tension of not more than 40 mNm−1 at 20° C. This ink composition enables ink jet recording which can provide good print quality and can realize continuous printing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.