Thermal transfer recording sheet
AssigneeCanon Kabushiki Kaisha
InventorsYuko Katsumoto, Masao Nakano, Taichi Shintou
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Abstract
An object of the present invention is to provide a thermal transfer recording sheet that enables images having a wide color gamut, a high chroma, and good lightfastness, in which the degree of catalytic fading is reduced, to be formed. The thermal transfer recording sheet includes a base material and a colorant layer on the base material. The colorant layer includes a yellow dye layer, a magenta dye layer, and a cyan dye layer. The dye layers each include, as a dye, a compound having a specific structure.
Claims4
A thermal transfer recording sheet comprising a base material and a colorant layer on the base material,
- wherein:
- the colorant layer includes
- a yellow dye layer comprising a yellow dye,
- a magenta dye layer comprising a magenta dye, and
- a cyan dye layer comprising a cyan dye,
- the magenta dye containing a compound represented by General Formula (1),
- the yellow dye containing at least one compound selected from the group consisting of compounds represented by General Formulae (2) to (5), and
- the cyan dye containing at least one compound selected from the group consisting of compounds represented by General Formulae (6) to (8),
- wherein, in General Formula (1),
- R1 to R6 each independently represent an alkyl group, and R3 to R5 may be bonded to one another to form a polycyclic or monocyclic saturated cyclic hydrocarbon ring;
- and
- R7 and R8 each independently represent an alkyl group or an acyl group or are bonded to each other to form a ring,
- wherein, in General Formula (2), R9 to R12 each independently represent an alkyl group, an aryl group having no substituents, or an aryl group having a substituent,
- wherein, in General Formula (3),
- R13 and R14 each independently represent an alkyl group, an aryl group having no substituents, or an aryl group having a substituent;
- and
- R15 and R16 each independently represent a hydrogen atom, an alkyl group, an aryl group having no substituents, an aryl group having a substituent, an alkoxy group, a cyano group, or a halogen atom,
- wherein, in General Formula (4), R17 and R18 each independently represent an alkyl group, an aryl group having no substituents, or an aryl group having a substituent,
- wherein, in General Formula (5), R19 and R20 each independently represent an alkyl group, an aryl group having no substituents, or an aryl group having a substituent,
- wherein, in General Formula (6), R21 to R25 each independently represent an alkyl group, an aryl group having no substituents, or an aryl group having a substituent,
- wherein, in General Formula (7), R26 and R27 each independently represent an alkyl group, an aryl group having no substituents, or an aryl group having a substituent, and
- wherein, in General Formula (8), R28 to R32 each independently represent an alkyl group, an aryl group having no substituents, or an aryl group having a substituent.
Dependencies are inferred from the claim text.