Patent ID: 11904621
Assignee: CANON KABUSHIKI KAISHA
Field: Basic materials chemistry (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 0:
1. A thermal transfer recording sheet comprising:
a substrate; and
a yellow coloring material layer containing a yellow dye, a magenta coloring material layer containing a magenta dye, and a cyan coloring material layer containing a cyan dye frame-sequentially formed on the substrate,
wherein at least one coloring material layer selected from the group consisting of the yellow coloring material layer, the magenta coloring material layer, and the cyan coloring material layer contains at least one compound selected from the group consisting of the compound group represented by the following formulae (1) to (3), and
a content of the at least one compound contained in a coloring material layer A, which is the at least one coloring material layer containing the at least one compound, ranges from 5 to 25 parts by mass per 100 parts by mass of dye contained in the coloring material layer A,, in the formula (1),
R1 denotes a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a hydroxy group,
R2 to R4 independently denote a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and
R5 denotes an alkyl group having 1 to 4 carbon atoms, a hydroxymethyl group, or an amino group,
the compound group represented by the formula (1) consists of, , in the formula (2),
R6 denotes an alkyl group having 5 to 23 carbon atoms or a hydroxyalkyl group having 5 to 23 carbon atoms,
R7 denotes a hydrogen atom, a hydroxy group, or a hydroxymethyl group, and
R8 denotes a hydrogen atom or an alkyl group having 5 to 23 carbon atoms,
the compound group represented by the formula (2) consists of, , , and, , ,, in the formula (3),
R9 denotes an alkyl group having 1 to 4 carbon atoms or an amino group,
R10 denotes a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, and
R11 denotes an alkyl group having 1 to 8 carbon atoms,
the yellow coloring material layer contains a compound selected from the group consisting of the compound group represented by the following formulae (4) to (7) and (18), as the yellow dye,
the cyan coloring material layer contains a compound selected from the group consisting of the compound group represented by the following formulae (8) to (11), as the cyan dye, and
the magenta coloring material layer contains a compound selected from the group consisting of the compound group represented by the following formulae (12) to (17), as the magenta dye,, in the formula (4), R12 to R15 independently denote an alkyl group, an unsubstituted aryl group, or an aryl group with a substituent,, in the formula (5), R16 denotes an alkyl group, an unsubstituted aryl group, an aryl group with a substituent, an unsubstituted amino group, or an amino group with a substituent, R17 denotes a hydrogen atom, an alkyl group, an unsubstituted aryl group, an aryl group with a substituent, or —N(—Ra)Rb, and Ra and Rb satisfy the following (i) or (ii),
(i) Ra and Rb independently denote a hydrogen atom, an alkyl group, or an acyl group,
(ii) Ra and Rb are bonded together and form a ring, and Ra and Rb denote an atomic group required to form the ring,
R18 denotes an alkyl group, R19 denotes a hydrogen atom or an alkyl group, Y denotes a carbonyl group or a sulfonyl group, and n denotes an integer in the range of 1 to 3,, in the formula (6), R20 and R21 independently denote an alkyl group or an aryl group,, in the formula (7), R22 and R23 independently denote an alkyl group or an aryl group,, in the formula (8), R24 to R28 independently denote an alkyl group or an aryl group,, in the formula (9), R29 and R30 independently denote an alkyl group, an unsubstituted aryl group, or an aryl group with a substituent,, in the formula (10), R31 to R35 independently denote an alkyl group, a benzyl group, or an aryl group,, in the formula (11), R36 to R39 independently denote a hydrogen atom, an alkyl group, an unsubstituted aryl group, an aryl group with a substituent, or a benzyl group, R40 and R41 independently denote an alkyl group, R42 denotes an unsubstituted aryl group or an aryl group with a substituent, and X− denotes an anion,, in the formula (12), R43 denotes an unsubstituted alkyl group, an alkyl group in which methylenes are partly substituted with oxygen, an unsubstituted aryl group, or an aryl group with a substituent,, in the formula (13), R44 and R45 independently denote an alkyl group, an unsubstituted aryl group, or an aryl group with a substituent,, in the formula (14), R46 to R50 independently denote an alkyl group, an unsubstituted aryl group, or an aryl group with a substituent,, in the formula (15), R51 to R54 independently denote an alkyl group, an unsubstituted aryl group, or an aryl group with a substituent,, in the formula (16), R55 and R56 independently denote an alkyl group, R57 denotes a hydrogen atom, an alkyl group, an unsubstituted aryl group, or an aryl group with a substituent, R58 denotes an alkyl group, an unsubstituted aryl group, or an aryl group with a substituent, R59 denotes a hydrogen atom, an alkyl group, an unsubstituted aryl group, an aryl group with a substituent, or —N(—R60)R61, and R60 and R61 satisfy the following (i) or (ii),
(i) R60 and R61 independently denote a hydrogen atom, an alkyl group, an aryl group, or an acyl group,
(ii) R60 and R61 are bonded together and form a ring, and R60 and R61 denote an atomic group required to form the ring,, in the formula (17), R62 and R63 independently denote an alkyl group, and R64 denotes an alkenyl group or a phenyl group,, in the formula (18), R65 and R66 independently denote an alkyl group, R67 denotes an alkyl group or an alkoxy group, and R68 denotes an alkyl group or an aryl group.