Ink jet recording media and method for their preparation
US7087275B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2002 |
| Grant date | Aug 8, 2006 |
| Priority date | — |
| Expiry date | May 30, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24802
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A coating fluid for application to a support to prepare an ink jet recording medium comprises an aqueous dispersion of a synthetic polymer hydrogel and gelatin, the amount of the synthetic polymer hydrogel being from 5 to 50% by weight of the combined weight of synthetic polymer and gelatin. Preferably the coating fluid also contains a mordant, an aliphatic alcohol to assist dispersion of the hydrogel polymer and a particulate material to impart a porous structure to the coating. The invention also provides an inkjet recording medium comprising a support on which is an ink-receiving layer comprising the gelatin and a synthetic polymer hydrogel. The amount of the latter may be from 0.3 to 5 g/square meter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.