Inkjet recording sheet
US7070840B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2002 |
| Grant date | Jul 4, 2006 |
| Priority date | — |
| Expiry date | Jan 12, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24802
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An inkjet recording sheet has a colorant-receiving layer on a support. The colorant-receiving layer is provided with at least one of compounds represented by the following formulas (1) to (4) and which has either or both of an I/O value of at least 0.5 and a water soluble property. The colorant-receiving layer is also provided with at least one organic mordant selected from polyallylamine, polyvinylamine and derivatives of these. In the formulas, each of R1 to R7 independently represents an alkyl group, an aryl group, or a heterocyclic group that may have a substituent, and any of pairs R1 and R2, R4 and R5, and R6 and R7 may be mutually coupled to form a ringR1—S—R2 General Formula (1)R4—S—S—R5 General Formula (2)R3—SH General Formula (3)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.