Thermal transfer image recording material and image using metal ion providing compound

Claim 2

A thermal transfer recording material comprising a support and provided thereon, a layer containing a binder and a metal ion providing compound represented by the following Formula (I) M.sup.2+ (X.sup.-).sub.2 Formula (I) wherein M 2+ represents a divalent transition metal ion; and X represents a ligand capable of combining with the metal ion to form a complex, said ligand being represented by the following Formula (II); ##STR57## wherein Z represents an alkyl group, an aryl group, an aryloxycarbonyl group, an alkoxycarbonyl group, an acyl group, a halogen atom, or a hydrogen atom; and R and R' independently represent an alkyl group or an aryl group, provided that when Z represents a hydrogen atom, R and R' are not simultaneously methyl groups, or at least one of R and R' may combine with Z to form a ring.

Claim 3

The material of claim 1, wherein said divalent transition metal is a nickel or zinc ion.

Claim 4

The material of claim 1, wherein said Z in Formula (II) represents an aryloxycarbonyl group or an alkoxycarbonyl group.

Claim 5

The material of claim 1, wherein said metal ion providing compound is contained in an amount of 0.5 to 20 g per m 2 of the support.

Claim 6

The material of claim 1, wherein said binder is contained in an amount of 0.1 to 50 g per m 2 of the support.

Claim 7

The material of claim 1, wherein said binder is a polyvinyl butyral.

Claim 8

The material of claim 1 further comprising an ink layer adjacent said layer containing said binder and said metal-ion providing compound, said ink layer containing a heat diffusible dye capable of forming a chelated dye on reaction with said metal ion providing compound.

Claim 9

A thermal transfer image forming method comprising the steps of: (a) superposing an image receiving layer of an image receiving material upon an ink sheet comprising a support having thereon an ink layer containing a heat diffusible dye capable of forming a chelated dye, said image receiving layer coming into contact with the ink layer and said image receiving layer containing a binder and a metal ion providing compound; (b) applying imagewise heat to the superposed material to transfer the dye in the ink layer to the image receiving layer and forming a chelated dye image by reaction of said metal ion providing compound with said heat diffusible dye on the image receiving layer; and (c) peeling apart the ink sheet from the superposed material; wherein said metal ion providing compound is represented by the following Formula (I): M.sup.2+ (X.sup.-).sub.2 (Formula (I) wherein M 2+ represents a divalent transition metal ion; and X represents a ligand capable of combining with the metal ion to form a complex, said ligand being represented by the following Formula (II): ##STR58## wherein Z represents an alkyl group, an aryl group, an aryloxycarbonyl group, an alkoxycarbonyl group, an acyl group, a halogen atom, or a hydrogen atom; and R and R' independently represent an alkyl group or an aryl group, provided that when Z represents a hydrogen atom, R and R' are not simultaneously methyl groups, or at least one of R and R' may combine with Z to form a ring.

Claim 10

A thermal transfer image forming method comprising the steps of: (a) superposing an image receiving layer of an image receiving material upon an ink sheet comprising a support having thereon an ink layer containing a heat diffusible dye capable of forming a chelated dye, said image receiving layer coming into contact with the ink layer and said image receiving layer containing a binder and a metal ion providing compound; (b) applying imagewise heat to the superposed material to transfer the dye in the ink layer to the image receiving layer and forming a chelated dye image by reaction of said metal ion providing compound with said heat diffusible dye on the image receiving layer; and (c) peeling apart the ink sheet from the superposed material; wherein said metal ion providing compound is represented by the following Formula (I): M.sup.2+ (X.sup.-).sub.2 (Formula (I) wherein M 2+ represents a divalent transition metal ion; and X represents a ligand capable of combining with the metal ion to form a complex, said ligand being represented by the following Formula (II): ##STR58## wherein Z represents an alkyl group, an aryl group, an aryloxycarbonyl group, an alkoxycarbonyl group, an acyl group, a halogen atom, or a hydrogen atom; and R and R' independently represent an alkyl group or an aryl group, provided that when Z represents a hydrogen atom, R and R' are not simultaneously methyl groups, or at least one of R and R' may combine with Z to form a ring.