Recording medium
US8449957B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2011 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Sep 13, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/256
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A recording medium includes an ink-receiving layer on a substrate, in which the ink-receiving layer contains a hydrated alumina, an alkylsulfonic acid having 1 to 4 carbon atoms, and at least one salt of a sulfur compound represented by general formula (1) or (2):R1—SO2M1 general formula (1)R2—SO2—SM2 general formula (2)wherein R1 and R2 each represent an alkyl group, an aryl group, or a heterocyclic group; and M1 and M2 each represent an alkali metal, ammonium, or an alkanolamine. The proportion of the alkylsulfonic acid having 1 to 4 carbon atoms is in the range of 1.0% by mass to 2.0% by mass with respect to the hydrated alumina. The proportion of the salt of the sulfur compound is in the range of 0.2% by mass to 4.0% by mass with respect to the hydrated alumina.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.