Oil-based ink composition for ink-jet recording
US7125447B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 16, 2003 |
| Grant date | Oct 24, 2006 |
| Priority date | — |
| Expiry date | Jul 16, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/36
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An oil-based ink composition for ink jet recording of the present invention contains a colorant and at least 50% by weight of a mixed solvent made by mixing from 0.02 to 4 parts by weight of a lactone-type solvent with 1 part by weight of polyoxyethylene glycol dialkyl ether represented by the following general formula (1):R11—(OC2H4)n—OR12 General Formula (1)(wherein R11, R12 represent alkyl groups having from 1 to 3 carbon atoms and can be the same or different, and n is an integer from 2 to 4). The oil-based ink composition can be suitably used for printing on a polyvinyl chloride substrate and is excellent in all of print quality, printing stability, dry characteristics of printed matter, and storage stability of ink.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.