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US5077264A
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Cyan dye-donor element used in thermal transfer and thermal transfer sheet using it
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1989-12-15
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Granted: 1991-12-31
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Expires: 2009-12-15
Abstract
Abstract A cyan dye-donor element which gives good printed images to a thermal-transfer sheet and a thermal-transfer sheet comprising a substrate sheet and a layer containing said cyan dye-donor and being laid on one side of the substrate sheet are provided. The cyan dye-donor element comprises cyan dyes dispersed or dissolved in a polymeric binder wherein said cyan dyes comprise: ##STR1## wherein R 1 and R 2 each represents a hydrogen atom or a C 1 -C 6 alkyl group; at least one dye represented by the following formula (II): ##STR2## wherein R 3 and R 4 each represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted, and R 5 represents a hydrogen atom or a C 1 -C 6 alkyl group; and at least one dye selected from the group consisting of dyes represented by the following formula (III): ##STR3## wherein R 6 and R 7 each represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted, R 8 represents a hydrogen atom, a C 1 -C 6 alkyl group which may be substituted, an alkoxy group which may be substituted or an acylamino group which may be substituted and R 9 represents a hydrogen atom, a C 1 -C 6 alkyl group which may be substituted or an aryl group which may be substituted, dyes represented by the following formula (IV): ##STR4## wherein R 10 represents a hydrogen atom, a C 1 -C 6 alkyl group which may be substituted, an aryl group which may be substituted or a cyclohexyl group, R 11 -R 13 each represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted, and R 14 represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted or an alkoxy group which may be substituted, and dyes represented by the following formula (V): ##STR5## wherein R 15 and R 16 each represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted.
Inventors
- 👤 Yoshiaki Hayashi
- 👤 Taira Fujita
- 👤 Takehiro Kusumoto
- 👤 Takeshi Hioki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:52
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/385; B41M5/3858; B41M5/3852; B41M5/3854; B41M5/39; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
319 words
A cyan dye-donor element for thermal transfer which comprises a cyan dye dispersed or dissolved in a polymeric binder, said cyan dye comprising at least one dye represented by the following formula (I): ##STR44## wherein R 1 and R 2 each represents a hydrogen atom or a C 1 -C 6 alkyl group; at least one dye represented by the following formula (II): ##STR45## wherein R 3 and R 4 each represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted, and R 5 represents a hydrogen atom or a C 1 -C 6 alkyl group; and at least one dye selected from the group consisting of dyes represented by the following formula (III): ##STR46## wherein R 6 and R 7 each represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted, R 8 represents a hydrogen atom, a C 1 -C 6 alkyl group which may be substituted, an alkoxy group which may be substituted or an acylamino group which may be substituted and R 9 represents a hydrogen atom, a C 1 -C 6 alkyl group which may be substituted or an aryl group which may be substituted, dyes represented by the following formula (IV): ##STR47## wherein R 10 represents a hydrogen atom, a C 1 -C 6 alkyl group which may be substituted, an aryl group which may be substituted or a cyclohexyl group, R 11 -R 13 each represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted, and R 14 represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted or an alkoxy group which may be substituted, and dyes represented by the following formula (V): ##STR48## wherein R 15 and R 16 each represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted.
Claim 2
Dependent Claim
319 words
A cyan dye-donor element for thermal transfer which comprises a cyan dye dispersed or dissolved in a polymeric binder, said cyan dye comprising at least one dye represented by the following formula (I): ##STR44## wherein R 1 and R 2 each represents a hydrogen atom or a C 1 -C 6 alkyl group; at least one dye represented by the following formula (II): ##STR45## wherein R 3 and R 4 each represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted, and R 5 represents a hydrogen atom or a C 1 -C 6 alkyl group; and at least one dye selected from the group consisting of dyes represented by the following formula (III): ##STR46## wherein R 6 and R 7 each represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted, R 8 represents a hydrogen atom, a C 1 -C 6 alkyl group which may be substituted, an alkoxy group which may be substituted or an acylamino group which may be substituted and R 9 represents a hydrogen atom, a C 1 -C 6 alkyl group which may be substituted or an aryl group which may be substituted, dyes represented by the following formula (IV): ##STR47## wherein R 10 represents a hydrogen atom, a C 1 -C 6 alkyl group which may be substituted, an aryl group which may be substituted or a cyclohexyl group, R 11 -R 13 each represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted, and R 14 represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted or an alkoxy group which may be substituted, and dyes represented by the following formula (V): ##STR48## wherein R 15 and R 16 each represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted.
Claim 3
Dependent Claim
60 words
A cyan dye-donor element according to claim 1, which contains 5-60 % by weight of the dye represented by the formula (I), 1-50 % by weight of the dye represented by the formula (II) and 10-70 % by weight of at least one dye selected from the group consisting of the dyes represented by the formulas (III), (IV) and (V).
Claim 4
Dependent Claim
60 words
A cyan dye-donor element according to claim 1 which contains 10-50 % by weight of the dye represented by the formula (I), 5-40 % by weight of the dye represented by the formula (II) and 15-60 % by weight of at least one dye selected from the group consisting of the dyes represented by the formulas (III), (IV) and (V).
Claim 5
Dependent Claim
26 words
A cyan dye-donor element according to claim 1 wherein the dye represented by the formula (I) is a dye represented by the following formula (VI): ##STR49##
Claim 6
Dependent Claim
25 words
A cyan dye-donor element according to claim 1, wherein the dye represented by the formula (II) is a dye represented by the formula (VII): ##STR50##
Claim 7
Dependent Claim
25 words
A cyan dye-donor element according to claim 1, wherein the dye represented by the formula (III) is a dye represented by the formula (VIII): ##STR51##
Claim 8
Dependent Claim
25 words
A cyan dye-donor element according to claim 1, wherein the dye represented by the formula (IV) is a dye represented by the formula (IX): ##STR52##
Claim 9
Dependent Claim
25 words
A cyan dye-donor element according to claim 1, wherein the dye represented by the formula (V) is a dye represented by the formula (X): ##STR53##
Claim 10
Dependent Claim
55 words
A cyan dye-donor element for a thermal transfer sheet which comprises cyan color dyes dispersed or dissolved in a polymeric binder wherein said cyan color dyes comprise: a dye represented by the following formula (VI): ##STR54## a dye represented by the following formula (VII): ##STR55## and a dye represented by the following formula (VIII): ##STR56##
Claim 11
Dependent Claim
55 words
A cyan dye-donor element for a thermal transfer sheet which comprises cyan color dyes dispersed or dissolved in a polymeric binder wherein said cyan color dyes comprise: a dye represented by the following formula (VI): ##STR54## a dye represented by the following formula (VII): ##STR55## and a dye represented by the following formula (VIII): ##STR56##
Claim 12
Dependent Claim
29 words
A cyan dye-donor element according to claim 9, wherein the dye represented by the following formula (IX) is contained in place of the dye represented by the formula (VIII):
Claim 13
Dependent Claim
48 words
A cyan dye-donor element according to claim 10, which contains 5-60 % by weight of the dye represented by the formula (VI), 1-50 % by weight of the dye represented by the formula (VII) and 10-70 % by weight of the dye represented by the formula (IX). ##STR57##
Claim 14
Dependent Claim
30 words
A cyan dye-donor element according to claim 9, wherein the dye represented by the following formula (X) is contained in place of the dye represented by the formula (VIII): ##STR58##
Claim 15
Dependent Claim
47 words
A cyan dye-donor element according to claim 11 which contains 5-60 % by weight of the dye represented by the formula (VI), 1-50 % by weight of the dye represented by the formula (VII) and 10-70 % by weight of the dye represented by the formula (X).
Claim 16
Dependent Claim
47 words
A cyan dye-donor element according to claim 9 which contains 5-60 % by weight of the dye represented by the formula (VI), 1-50 % by weight of the dye represented by the formula (VII) and 10-70 % by weight of the dye represented by the formula (VIII).
Claim 17
Dependent Claim
333 words
A thermal-transfer sheet which comprises a substrate sheet and a layer carrying a cyan dye-donor dispersed or dissolved in a polymeric binder and being laid on one side of said substrate sheet, wherein said cyan dye comprises at least one dye represented by the following formula (I): ##STR59## wherein R 1 and R 2 each represents a hydrogen atom or a C 1 -C 6 alkyl group; at least one dye represented by the following formula (II): ##STR60## wherein R 3 and R 4 each represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted, and R 5 represents a hydrogen atom or a C 1 -C 6 alkyl group; and at least one dye selected from the group consisting of dyes represented by the following formula (III): ##STR61## wherein R 6 and R 7 each represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted, R 8 represents a hydrogen atom, a C 1 -C 6 alkyl group which may be substituted, an alkoxy group which may be substituted or an acylamino group which may be substituted and R 9 represents a hydrogen atom, a C 1 -C 6 alkyl group which may be substituted or an aryl group which may be substituted, dyes represented by the following formula (IV): ##STR62## wherein R 10 represents a hydrogen atom, a C 1 -C 6 alkyl group which may be substituted, an aryl group which may be substituted or a cyclohexyl group, R 11 -R 13 each represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted, and R 14 represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted or an alkoxy group which may be substituted, and dyes represented by the following formula (V): ##STR63## wherein R 15 and R 16 each represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted.
Claim 18
Dependent Claim
333 words
A thermal-transfer sheet which comprises a substrate sheet and a layer carrying a cyan dye-donor dispersed or dissolved in a polymeric binder and being laid on one side of said substrate sheet, wherein said cyan dye comprises at least one dye represented by the following formula (I): ##STR59## wherein R 1 and R 2 each represents a hydrogen atom or a C 1 -C 6 alkyl group; at least one dye represented by the following formula (II): ##STR60## wherein R 3 and R 4 each represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted, and R 5 represents a hydrogen atom or a C 1 -C 6 alkyl group; and at least one dye selected from the group consisting of dyes represented by the following formula (III): ##STR61## wherein R 6 and R 7 each represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted, R 8 represents a hydrogen atom, a C 1 -C 6 alkyl group which may be substituted, an alkoxy group which may be substituted or an acylamino group which may be substituted and R 9 represents a hydrogen atom, a C 1 -C 6 alkyl group which may be substituted or an aryl group which may be substituted, dyes represented by the following formula (IV): ##STR62## wherein R 10 represents a hydrogen atom, a C 1 -C 6 alkyl group which may be substituted, an aryl group which may be substituted or a cyclohexyl group, R 11 -R 13 each represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted, and R 14 represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted or an alkoxy group which may be substituted, and dyes represented by the following formula (V): ##STR63## wherein R 15 and R 16 each represents a hydrogen atom or a C 1 -C 6 alkyl group which may be substituted.
Claim 19
Dependent Claim
64 words
A thermal-transfer sheet according to claim 15, wherein content of the dye represented by the formula (I) is 5-60 % by weight, content of the dye represented by the formula (II) is 1-50 % by weight and content of at least one dye selected from the group consisting of the dyes represented by the formulas (III), (IV) and (V) is 10-70 % by weight.
Claim 20
Dependent Claim
64 words
A thermal-transfer sheet according to claim 15, wherein content of the dye represented by the formula (I) is 10-50 % by weight, content of the dye represented by the formula (II) is 5-40 % by weight and content of at least one dye selected from the group consisting of the dyes represented by the formulas (III), (IV) and (V) is 15-60 % by weight.
Claim 21
Dependent Claim
60 words
A thermal-transfer sheet according to claim 15, wherein the dye represented by the formula (I) is the dye represented by the following formula (VI): ##STR64## the dye represented by the formula (II) is the dye represented by the following formula (VII): ##STR65## and the dye represented by the formula (III) is the dye represented by the following formula (VIII): ##STR66##
Claim 22
Dependent Claim
29 words
A thermal-transfer sheet according to claim 18, wherein the dye represented by the following formula (IX) is contained in place of the dye represented by the formula (VIII): ##STR67##
Claim 23
Dependent Claim
51 words
A thermal-transfer sheet according to claim 19, wherein content of the dye represented by the formula (VI) is 5-60 % by weight, content of the dye represented by the formula (VII) is 1-50 % by weight and content of the dye represented by the formula (IX) is 10-70 % by weight.
Claim 24
Dependent Claim
29 words
A thermal-transfer sheet according to claim 18, wherein the dye represented by the following formula (X) is contained in place of the dye represented by the formula (VIII): ##STR68##
Claim 25
Dependent Claim
51 words
A thermal-transfer sheet according to claim 21, wherein content of the dye represented by the formula (VI) is 5-60 % by weight, content of the dye represented by the formula (VII) is 1-50 % by weight and content of the dye represented by the formula (X) is 10-70 % by weight.
Claim 26
Dependent Claim
51 words
A thermal-transfer sheet according to claim 18, wherein content of the dye represented by the formula (VI) is 5-60 % by weight, content of the dye represented by the formula (VII) is 1-50 % by weight and content of the dye represented by the formula (VIII) is 10-70 % by weight.
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