Ink-jet recording medium
US6821584B2 · kind B2 · utility
22Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 2003 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | May 29, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/5236
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink-jet recording sheet comprising a support having thereon in the following order: (i) a first ink absorbing layer comprising gelatin and a first cationic polymer; and (ii) a second ink absorbing layer comprising gelatin and a second cationic polymer, wherein the first cationic polymer has a larger ink absorption ratio Ai than the second cationic polymer, the ink absorption ratio Ai being defined by the following equation: Ai (%)=((an optical density of a print after immersion in water)/(an optical density of a print before immersion in water))×100.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.