Recording liquid, inkjet recording method and recording equipment using the same
US6688737B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2001 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Dec 5, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/40
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A recording liquid including a coloring material, an organic solvent to disperse or to dissolve said coloring material, water, and a calix[n]arene-p-4-sulfonic acid (where n=4-8) in the form of free acid or its metal salt. The recording liquid is very suitable for inkjet recording using plain paper as recording medium. The recording liquid shows high storage stability, excellent color reproducibility with hard blurring property of mutual colors at superposed area thereof, and high resistively for light fading, for the sake of buffering nature based by both ion-capturing and -releasing, and hydrophobic material-capturing and -releasing bestowed by above-mentioned calix compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.