Thermal transfer recording sheet
US10647142B2 · kind B2 · utility
3Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2017 |
| Grant date | May 12, 2020 |
| Priority date | — |
| Expiry date | Dec 15, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/47
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In a thermal transfer recording sheet including a base material and a colorant layer, the colorant layer includes a yellow dye layer containing a yellow dye, a magenta dye layer containing a magenta dye, and a cyan dye layer containing a cyan dye, and the cyan dye includes a compound represented by Formula (1a) or Formula (1b): where R1 to R7 are substituents, X− is an anion, and the compound of Formula (1b) has at least one anionic substituent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.