Oil ink composition for electrostatic attraction ink jet and recording process using same
US6412937B1 · kind B1 · utility
4Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1999 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Oct 26, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/36
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An ink composition for an electrostatic ink jet composed of a nonaqueous solvent having an electrical resistance of not lower than 109 &OHgr;·cm and a dielectric constant of not more than 3.5; a solid particulate material having an average particle diameter of from 0.1 to 3 &mgr;m dispersed in a nonaqueous solvent; and at least one fluorine-based surface active agent which is soluble in the nonaqueous solvent. The surface active agent is present in an amount from about 0.05 to 5% by weight based on the weight of the ink composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.