Aqueous ink composition and ink-jet printing method using the same
US5431720A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1993 |
| Grant date | Jul 11, 1995 |
| Priority date | — |
| Expiry date | Oct 1, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/38
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
ASn aqueous ink composition composed of water, a lubricant, a coloring agent dispersed or dissolved in water, and a compound of formula (I): EQU R--O(CH.sub.2 CH.sub.2 O).sub.m CH.sub.2 COOM (I) wherein R is an alkyl group having 6 to 14 carbon atoms which may be branched; M is a cation selected from the consisting of alkali metal ion, quaternary ammonium cation, quaternary phosphonium cation, and alkanol amine cation; and m is an integer of 3 to 12. Further, an ink-jet printing method of recording color images is disclosed, which includes the step of ejecting the above-mentioned aqueous ink composition from nozzles onto an image-receiving medium with a Stockigt sizing degree of 3 seconds or more as defined in the JIS-P-8122.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.