US 5,330,960 AGranted

Heat transfer sheet

AssigneeDai Nippon Printing Co., Ltd.

InventorsMasashi Ono, Shigeo Yasui, Ayashi Noguchi, Ryohei Takiguchi, Hiroshi Eguchi, Komei Kafuku

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Abstract

A dye and a heat transfer sheet for use in a heat transfer printing method employing a sublimable dye, capable of producing an image which has a sufficiently high density and is excellent in sharpness, fastness properties and, in particular, resistance to light are provided. The dye has the following formula (I): ##STR1## The heat transfer sheet includes a substrate sheet, and a dye layer including the dye having formula (I), provided on one surface of the substrate sheet.

Claims4

Dependent claims

A heat transfer sheet comprising:

a substrate sheet;
and
a dye layer provided on one surface of the substrate sheet, the dye layer comprising a dye of the formula:
##STR11## wherein X is any of =C(COOR.sub.7).sub.2, wherein the R.sub.7 groups may be the same or different, or ##STR12## in which ##STR13## is a residual group of a five-membered ring that may have a condensed ring, and
Z is --CO--, --NR.sub.6 --, --S--, --O-- or --NH--,
R.sub.1 is any of a hydrogen atom, R.sub.6, a halogen atom, a nitro group, --OR.sub.6, --SR.sub.6, or an allyl group which may have a substituent;
R.sub.2 is any of a hydrogen atom, a halogen atom, --OR.sub.6, or --SR.sub.6 ;
R.sub.3 is any of a hydrogen atom, R.sub.6, a halogen atom, a nitro group, an allyl group which may have a substituent, --OR.sub.6, --SR.sub.6, a sulfamoyl group, a carbamoyl group, an acyl group, an acylamide group, a sulfone amide group, an ureido group, or --NR.sub.6 R.sub.6 wherein the R.sub.6 groups may be the same or different;
R.sub.4 is any of a hydrogen atom, a halogen atom, --OR.sub.6, --SR.sub.6, a cyano group, --COOR.sub.6, a carbamoyl group, or a sulfamoyl group;
R.sub.5 is any of a hydrogen atom, a halogen atom, --OR.sub.6, or --SR.sub.6 ;
R.sub.6 is any of an alkyl group which may have a substituent, an aryl group which may have a substituent, a cycloalkyl group which may have a substituent or a heterocyclic ring which may have a substituent;
and
R.sub.7 is any of a hydrogen atom, --R.sub.6, an allyl group which may have a substituent, an alkenyl group which may have a substituent, a heteroalkenyl group which may have a substituent, an arylalkylene group which may have a substituent, a heteroaryl-alkylene group which may have a substituent, an alkoxyalkylene group which may have a substituent, an oxycarbonylalkyl group which may have a substituent, a carboxyalkyl group which may have a substituent, an oxycarboxyalkyl group which may have a substituent or a cycloalkylalkylene group which may have a substituent, with the proviso that any two adjacent groups among R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 may form a ring.

10 more elements

A heat transfer sheet for use in thermal transfer printing by means of a thermal printer, comprising:

a substrate sheet;
and
a dye layer provided on one surface of the substrate sheet, the dye layer comprising a dye of the formula:
##STR14## wherein X is any of ##STR15## in which A is an electron attracting group, ##STR16## is a residual group of a six-membered ring that may have a condensed ring, and
Z is --CO--, --NR.sub.6 --, --S--, --O-- or --NH--,
R.sub.1 is any of hydrogen atom, R.sub.6, a halogen atom, a nitro group, --OR.sub.6, --SR.sub.6, or an allyl group which may have a substituent;
R.sub.2 is any of a hydrogen atom, a halogen atom, --OR.sub.6, or --SR.sub.6 ;
R.sub.3 is any of a hydrogen atom, R.sub.6, a halogen atom, a nitro group, an allyl group which may have a substituent, --OR.sub.6, --SR.sub.6, a sulfamoyl group, a carbamoyl group, an acyl group, an acylamide group, a sulfone amide group, an ureido group, or --NR.sub.6 R.sub.6 wherein the R.sub.6 groups may be the same or different;
R.sub.4 is any of a hydrogen atom, a halogen atom, --OR.sub.6, --SR.sub.6, a cyano group, --COOR.sub.6, a carbamoyl group, or a sulfamoyl group;
R.sub.5 is any of a hydrogen atom, a halogen atom, --OR.sub.6, or --SR.sub.6 ;
R.sub.6 is any of an alkyl group which may have a substituent, an aryl group which may have a substituent, a cycloalkyl group which may have a substituent or a heterocyclic ring which may have a substituent;
and
R.sub.7 is any of a hydrogen atom, --R.sub.6, an allyl group which may have a substituent, an alkenyl group which may have a substituent, a heteroalkenyl group which may have a substituent, an arylalkylene group which may have a substituent, a heteroaryl-alkylene group which may have a substituent, an alkoxyalkylene group which may have a substituent, an oxycarbonylalkyl group which may have a substituent, a carboxyalkyl group which may have a substituent, an oxycarboxyalkyl group which may have a substituent or a cycloalkylalkylene group which may have a substituent, with the proviso that any two adjacent groups among R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 may form a ring.

10 more elements

A thermal transfer assemblage for use in thermal transfer printing by means of a thermal printer, comprising (a) an image-receiving sheet and (b) a heat transfer sheet comprising:

a substrate sheet;
and
a dye layer provided on one surface of the substrate sheet, the dye layer comprising a dye of the formula:
##STR17## wherein X is any of ##STR18## wherein the R.sub.7 groups may be the same or different, or ##STR19## in which A is an electron attracting group, ##STR20## is a residual group of a five- or six-membered ring that may have a condensed ring, and
Z is --CO--, --NR.sub.6 --, --S--, --O-- or --NH--,
R.sub.1 is any of a hydrogen atom, R.sub.6, a halogen atom, a nitro group, --OR.sub.6, --SR.sub.6, or an allyl group which may have a substituent;
R.sub.2 is any of a hydrogen atom, a halogen atom, --OR.sub.6, or --SR.sub.6 ;
R.sub.3 is any of a hydrogen atom, R.sub.6, a halogen atom, a nitro group, an allyl group which may have a substituent, --OR.sub.6, --SR.sub.6, a sulfamoyl group, a carbamoyl group, an acyl group, an acylamide group, a sulfone amide group, an ureido group, or --NR.sub.6 R.sub.6 wherein the R.sub.6 groups may be the same or different;
R.sub.4 is any of a hydrogen atom, a halogen atom, --OR.sub.6, --SR.sub.6, a cyano group, --COOR.sub.6, a carbamoyl group, or a sulfamoyl group;
R.sub.5 is any of a hydrogen atom, a halogen atom, --OR.sub.6, or --SR.sub.6 ;
R.sub.6 is any of an alkyl group which may have a substituent, an aryl group which may have a substituent, a cycloalkyl group which may have a substituent or a heterocyclic ring which may have a substituent;
and
R.sub.7 is any of a hydrogen atom, --R.sub.6, an allyl group which may have a substituent, an alkenyl group which may have a substituent, a heteroalkenyl group which may have a substituent, an arylalkylene group which may have a substituent, a heteroaryl-alkylene group which may have a substituent, an alkoxyalkylene group which may have a substituent, an oxycarbonylalkyl group which may have a substituent, a carboxyalkyl group which may have a substituent, an oxycarboxyalkyl group which may have a substituent or a cycloalkylalkylene group which may have a substituent, with the proviso that any two adjacent groups among R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 may form a ring.

10 more elements

A process for thermal transfer printing comprising the steps of:

(i) providing an image-receiving sheet and a heat transfer sheet comprising:
a substrate sheet;
and
a dye layer provided on one surface of the substrate sheet, the dye layer comprising a dye of the formula:
##STR21## wherein X is any of ##STR22## C(COOR.sub.7).sub.2 wherein the R.sub.7 groups may be the same or different), or ##STR23## in which A is an electron attracting group, ##STR24## is a residual group of a five- or six-membered ring that may have a condensed ring, and
Z is --CO--, --NR.sub.6 --, --S--, --O-- or --NH--,
R.sub.1 is any of a hydrogen atom, R.sub.6, a halogen atom, a nitro group, --OR.sub.6, --SR.sub.6, or an allyl group which may have a substituent;
R.sub.2 is any of a hydrogen atom, a halogen atom, --OR.sub.6, or --SR.sub.6 ;
R.sub.3 is any of a hydrogen atom, R.sub.6, a halogen atom, a nitro group, an allyl group which may have a substituent, --OR.sub.6, --SR.sub.6, a sulfamoyl group, a carbamoyl group, an acyl group, an acylamide group, a sulfone amide group, an ureido group, or --NR.sub.6 R.sub.6 wherein the R.sub.6 groups may be the same or different;
R.sub.4 is any of a hydrogen atom, a halogen atom, --OR.sub.6, --SR.sub.6, a cyano group, --COOR.sub.6, a carbamoyl group, or a sulfamoyl group;
R.sub.5 is any of a hydrogen atom, a halogen atom, --OR.sub.6, or --SR.sub.6 ;
R.sub.6 is any of an alkyl group which may have a substituent, an aryl group which may have a substituent, a cycloalkyl group which may have a substituent or a heterocyclic ring which may have a substituent;
and
R.sub.7 is any of a hydrogen atom, --R.sub.6, an allyl group which may have a substituent, an alkenyl group which may have a substituent, a heteroalkenyl group which may have a substituent, an arylalkylene group which may have a substituent, a heteroaryl-alkylene group which may have a substituent, an alkoxyalkylene group which may have a substituent, an oxycarbonylalkyl group which may have a substituent, a carboxyalkyl group which may have a substituent, an oxycarboxyalkyl group which may have a substituent or a cycloalkylalkylene group which may have a substituent, with the proviso that any two adjacent groups among R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 may form a ring;
(ii) bringing the heat transfer sheet into contact with the image-receiving sheet;
and
(iii) applying thermal energy to the heat transfer sheet, in accordance with information for printing, thereby forming an image on the image-receiving sheet.

14 more elements

Dependencies are inferred from the claim text.

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Abstract

A heat transfer sheet comprising:

a substrate sheet;
and
a dye layer provided on one surface of the substrate sheet, the dye layer comprising a dye of the formula:
##STR11## wherein X is any of =C(COOR.sub.7).sub.2, wherein the R.sub.7 groups may be the same or different, or ##STR12## in which ##STR13## is a residual group of a five-membered ring that may have a condensed ring, and
Z is --CO--, --NR.sub.6 --, --S--, --O-- or --NH--,
R.sub.1 is any of a hydrogen atom, R.sub.6, a halogen atom, a nitro group, --OR.sub.6, --SR.sub.6, or an allyl group which may have a substituent;
R.sub.2 is any of a hydrogen atom, a halogen atom, --OR.sub.6, or --SR.sub.6 ;
R.sub.3 is any of a hydrogen atom, R.sub.6, a halogen atom, a nitro group, an allyl group which may have a substituent, --OR.sub.6, --SR.sub.6, a sulfamoyl group, a carbamoyl group, an acyl group, an acylamide group, a sulfone amide group, an ureido group, or --NR.sub.6 R.sub.6 wherein the R.sub.6 groups may be the same or different;
R.sub.4 is any of a hydrogen atom, a halogen atom, --OR.sub.6, --SR.sub.6, a cyano group, --COOR.sub.6, a carbamoyl group, or a sulfamoyl group;
R.sub.5 is any of a hydrogen atom, a halogen atom, --OR.sub.6, or --SR.sub.6 ;
R.sub.6 is any of an alkyl group which may have a substituent, an aryl group which may have a substituent, a cycloalkyl group which may have a substituent or a heterocyclic ring which may have a substituent;
and
R.sub.7 is any of a hydrogen atom, --R.sub.6, an allyl group which may have a substituent, an alkenyl group which may have a substituent, a heteroalkenyl group which may have a substituent, an arylalkylene group which may have a substituent, a heteroaryl-alkylene group which may have a substituent, an alkoxyalkylene group which may have a substituent, an oxycarbonylalkyl group which may have a substituent, a carboxyalkyl group which may have a substituent, an oxycarboxyalkyl group which may have a substituent or a cycloalkylalkylene group which may have a substituent, with the proviso that any two adjacent groups among R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 may form a ring.

10 more elements