Reaction solution, set of reaction solution and ink, inkjet recording apparatus and image recording method
US7354145B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 2005 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | Dec 24, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M7/0018
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A reaction solution to be used for image recording with an ink containing a coloring material in a dissolved or dispersed state in order to achieve a high level of image density with stability, wherein the reaction solution contains a polyvalent metal ion and an organic solvent to destabilize the dissolved or dispersed state of the coloring material in the ink in contact with the ink, has a pH of 2 or higher, and has a buffering action for pH, wherein the buffering action means it can maintain pH variation within the range of 0.5 before and after the addition of 1.0 ml of a 0.1 N aqueous lithium hydroxide solution to 50 ml of the reaction solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.