Ink-jet recording method
US4533920A · kind A · utility
25Cited by
8References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 29, 1984 |
| Grant date | Aug 6, 1985 |
| Priority date | — |
| Expiry date | May 29, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/40
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for ink jet recording comprises using inks of one or more colors and a plurality of inks different in dye concentration being used for each color. The pH of the inks for each color satisfies the following relation, EQU 0.85.ltoreq.pH min/pH max where pH min is the minimum value of pH of the inks for each color and pH max is the maximum value of pH of the inks for said color.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.