Recording sheet and record
US5445868A · kind A · utility
15Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1994 |
| Grant date | Aug 29, 1995 |
| Priority date | — |
| Expiry date | Mar 10, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/259
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A recording sheet comprising a substrate and a colorant absorbing layer made of a porous inorganic oxide, formed on the substrate, wherein said colorant absorbing layer contains an organic acid with the first acid dissociation exponent of at most 5, which has an aromatic nucleus or at least two carboxyl groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.