JPH06312582A - Thermal transfer recording material and thermal transfer recording method - Google Patents

Abstract

PURPOSE:To obtain a thermal transfer recording material using postcheleting dye capable of imparting excellent color tone as cyan by cheleting by providing a thermal transfer layer containing dye represented by a general formula on a support. CONSTITUTION:As dye contained in a thermal transfer layer, a dye represented by a general formula is used. In the formula, R<1> is a group substituted for benzene ring, and n is integer of 0-3. When the n is 2 or more, a plurality of R<1> may be the same or different. R<2> is hydroxy group or amino group. An image receiving material is superposed on a thermal transfer material having the layer containing the above dye on a support, overheated in response to image information, and an image is formed by a chelete dye to be formed by reaction of the dye with metallic ions. According to this, a cyan image having excellent image stability can be obtained with high density, and preservability of an ink sheet can be enhanced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-sensitive transfer recording material and a heat-sensitive transfer recording method, and more particularly to an image recording material for obtaining a cyan image having a high density and good image stability, and this heat-sensitive transfer recording material. The present invention relates to a heat-sensitive transfer recording method capable of efficiently recording a cyan image by using.

[0002]

2. Description of the Related Art A thermal transfer recording method is easy to operate and maintain, can be downsized, and can be manufactured at low cost.
Further, it is useful as a method for obtaining a color hard copy because of its advantages such as low running cost.

However, in the thermal transfer recording of the thermal transfer system, the dye used in the thermal transfer material is important, and the conventional one has a drawback that the stability of the obtained image, particularly the fixing property and the light fastness is poor. is doing.

In order to improve that point, JP-A-59-7889.
No. 3, No. 59-109394, No. 60-2398, and the like, an image forming method is disclosed in which an image is formed by a chelating dye on an image receiving material using a chelatable heat diffusible dye. ing.

[0005]

These image forming methods are excellent methods for improving fixing property and light resistance, but the dyes disclosed in these known patents are used for thermal transfer recording materials. Chelatable dye (hereinafter,
The following performances required for the post-chelate dye) are not necessarily satisfied.

1) To give a chelate dye image having a good color tone by forming a chelate 2) To have good thermal diffusivity of the post chelate dye 3) To prevent the post chelate dye from moving to the back surface of the ink sheet during storage of the ink sheet 4) Solvent solubility of post-chelate dye (ink suitability)
5) The reactivity of the post-chelate dye (reactivity with the metal ion-supplying compound) is good. 6) The stability of the chelate dye image (fixability, light resistance) is excellent. Further improvements in the above performance of the dye have been desired.

The present invention has been made in view of the above circumstances, and a first object thereof is to provide a heat-sensitive transfer recording material using a post-chelating dye capable of giving a good color tone as cyan by chelation, and The present invention provides a thermal transfer recording method using this recording material.

The second purpose is that it has good ink suitability, thermal diffusivity, and chelate reactivity, can give an image with high density and good storability, and also has good storability of the ink sheet. It is intended to provide a heat-sensitive transfer recording material using a post-chelate dye and a heat-sensitive transfer recording method using the recording material.

[0009]

The above objects of the present invention have been achieved by the following constitutions. That is, a heat-sensitive transfer recording material having a heat-sensitive transfer layer containing at least a dye represented by the following general formula (1) or (2) on a support.

[0010]

[Chemical 3]

In the formula, R ¹ each represents a group capable of substituting on the benzene ring, and n represents an integer of 0 to 3. When n is 2 or more, a plurality of R ¹ may be the same or different. R ² represents a hydroxy group or an amino group.

[0012]

[Chemical 4]

In the formula, R ¹¹ represents a group capable of substituting for a benzene ring, R ¹² represents a group capable of substituting for an isoquinoline ring, and p and q each represent an integer of 0-4. When p and q are 2 or more, a plurality of R ¹¹ and R ¹² may be the same or different and may be bonded to each other to form a ring. R ¹³ represents a hydrogen atom, a halogen atom, or a monovalent substituent, and G is a chelatable group.

A heat-sensitive transfer recording material as described in the above item, wherein the dye represented by the general formula (1) or (2) can form a chelate dye by reaction with a metal ion.

The general formula (1) or (2) described in
A heat-sensitive transfer recording method in which a heat-sensitive transfer recording material having a layer containing a dye represented by the above is heated according to image information and a chelate dye formed by a reaction of the dye and a metal ion forms an image.

The dye represented by the above general formula (1) (hereinafter referred to as the dye of the present invention) will be described in more detail.

In the formula, R ¹ is, for example, a halogen atom (eg chlorine atom, fluorine atom etc.), an alkyl group (eg methyl, ethyl, isopropyl, n-butyl etc.), a cycloalkyl group (eg cyclopentyl, cyclohexyl etc.),
Aryl groups (eg phenyl), alkenyl groups (eg 2-propenyl etc., aralkyl groups (eg benzyl, 2-
Phenethyl etc.), alkoxy group (eg methoxy, ethoxy, isopropoxy, n-butoxy etc.), aryloxy group (eg phenoxy etc.), acylamino group (eg acetylamino, propionylamino etc.), sulfonylamino group (eg methanesulfonylamino) , Benzenesulfonylamino, etc.), ureido group (eg, 3-methylureido, 3,3-dimethylureido, 1,3-dimethylureido, etc.), carbamoyl group (eg, methylcarbamoyl, ethylcarbamoyl, dimethylcarbamoyl, etc.), sulfamoyl group ( For example, ethylsulfamoyl, dimethylsulfamoyl, etc.), alkoxycarbonyl group (eg, methoxycarbonyl, ethoxycarbonyl, etc.), aryloxycarbonyl group (eg, phenoxycarbonyl, etc.), acyl group (eg, acetone). Cyl, propanoyl, butyroyl, etc.), an amino group (eg, methylamino, ethylamino, dimethylamino, etc.), a cyano group, or a nitro group.

The groups that can be mentioned as R ¹ (including a substituent when it has a substituent) preferably have 15 or less (particularly preferably 10 or less) carbon atoms.

As the compound represented by the general formula (1), for example, a compound represented by the following general formula (3) is disclosed in JP-A-53-355.
It can be diazotized according to the method described in No. 33, and can be produced according to a known coupling reaction with a compound represented by the following general formula (4).

[0020]

[Chemical 5]

[0021] is the same as R ^1, R ² and n in the general formula R ^1, R ² and n have the general formula (1).

The dye represented by the general formula (2) (hereinafter referred to as the dye of the present invention) will be described in more detail.

G represents a chelatable group, preferably OX ¹ , NHX ¹ , COOX ¹ , SO ₂ NH.
It represents X ¹ , SX ¹ or NHCOX ² . X ¹ is a hydrogen atom,
It represents an alkyl group or an aryl group, and X ² represents an alkyl group or an aryl group. Particularly preferably, G is a hydroxyl group.

The substituents represented by R ¹¹ and R ¹² include
For example, halogen atom (eg chlorine atom, fluorine atom etc.), alkyl group (eg methyl, ethyl, isopropyl, n-butyl etc.), cycloalkyl group (eg cyclopentyl, cyclohexyl etc.), aryl group (eg phenyl etc.), alkenyl group (Eg, 2-propenyl, etc., aralkyl group (eg, benzyl, 2-phenethyl etc.), alkoxy group (eg, methoxy, ethoxy, isopropoxy, etc.
n-butoxy etc.), aryloxy group (eg phenoxy etc.), acylamino group (eg acetylamino, propionylamino etc.), sulfonylamino group (eg methanesulfonylamino, benzenesulfonylamino etc.),
Ureido group (eg, 3-methylureido, 3,3-dimethylureido, 1,3-dimethylureido, etc.), carbamoyl group (eg, methylcarbamoyl, ethylcarbamoyl, dimethylcarbamoyl, etc.), sulfamoyl group (eg, ethylsulfamoyl, dimethyl, etc.) Sulfamoyl etc.), alkoxycarbonyl group (eg methoxycarbonyl, ethoxycarbonyl etc.), aryloxycarbonyl group (eg phenoxycarbonyl etc.), acyl group (eg acetyl, propanoyl, butyroyl etc.), amino group (eg methylamino, ethyl) Amino, dimethylamino, etc.), cyano group, and nitro group.

The substituent represented by R ¹³ is a hydrogen atom, a halogen atom (eg chlorine, fluorine etc.), an alkyl group (eg methyl, ethyl, isopropyl, n-butyl etc.), an aminoalkyl group (eg dimethylaminomethyl). , Ethylaminomethyl etc.), aryl groups (eg phenyl etc.), aralkyl groups (eg benzyl group, 2-phenethyl etc.), alkoxy groups (eg methoxy, ethoxy, etc.)
Isopropoxy, n-butoxy etc.), an acylamino group (eg acetylamino, propionylamino etc.), an acyl group (eg acetyl, propanoyl, butyroyl etc.),
It represents an amino group (for example, methylamino, ethylamino, dimethylamino, etc.), a nitro group, and a cyano group.

The groups represented by R ¹¹ and R ¹² (including substituents when they have substituents) preferably have 15 or less carbon atoms (particularly preferably 10 or less carbon atoms).

As the compound represented by the general formula (2), for example, a compound represented by the following general formula (5) is described in JP-A-53-355.
It can be diazotized according to the method described in No. 33 and can be produced according to a known coupling reaction with a compound represented by the following general formula (6).

[0028]

[Chemical 6]

[0029] In the general ^{formula, R 11, R 12, R} 11 of R ^13, p and q have the general formula (2) in, R ^12, R ^13, p and q
Is synonymous with.

Next, typical specific examples of the dye represented by the general formula (1) of the present invention are shown below, but the present invention is not limited thereto.

[0031]

[Chemical 7]

[0032]

[Chemical 8]

Next, typical examples of the dye represented by the general formula (2) of the present invention are shown below, but the present invention is not limited thereto.

[0034]

[Chemical 9]

[0035]

[Chemical 10]

The heat-sensitive transfer recording material of the present invention comprises a heat-sensitive transfer layer containing the dye of the present invention provided on a support. The content of the dye in the heat-sensitive transfer layer is 0 per 1 m ² of the support.
05-10g is preferable.

In the heat-sensitive transfer layer, an ink liquid for forming a heat-sensitive transfer layer is prepared by dissolving one or more kinds of the dyes of the present invention in a solvent together with a binder, or by dispersing the dye in the form of fine particles in the solvent. Is prepared, and the ink is applied onto a support and appropriately dried, whereby the ink can be formed. The thickness of the thermal transfer layer is 0.1 to 10μ in dry film thickness.
m is preferred.

The binder is preferably a solvent-soluble polymer such as acrylic resin, methacrylic resin, polystyrene, polycarbonate, polysulfone, polyether sulfone, polyvinyl butyral, polyvinyl acetal, nitrocellulose or ethyl cellulose. These binders may be used by dissolving one or more kinds in an organic solvent and using them in the form of latex dispersion. The amount of binder used is 0 for each support.
1 to 20 g is preferable.

Examples of the organic solvent include alcohols (eg ethanol, propanol), cellosolves (eg methyl cellosolve), aromatics (eg toluene, xylene), esters (eg ethyl acetate), ketones (eg acetone). , Methyl ethyl ketone), ethers (eg, tetrahydrofuran, dioxane) and the like.

The support has good dimensional stability,
Any material can be used as long as it can withstand the heat of the thermal head during recording, but thin paper such as condenser paper and glassine paper, and heat resistant plastic film such as polyethylene terephthalate, polyamide and polycarbonate are preferably used. The thickness of the support is preferably 2 to 30 μm, and an undercoat layer made of a polymer selected for the purpose of improving the adhesiveness with the binder, transferring the dye to the support side, and preventing dyeing on the support. It is preferable to have Further, the back surface of the support (on the side opposite to the heat-sensitive transfer layer) may have a slipping layer for the purpose of preventing the head from sticking to the support.

The heat-sensitive transfer recording material of the present invention is described in JP-A-59-106997 on the heat-sensitive transfer layer for the purpose of using an image-receiving material which will be described later, which is not provided with an image-receiving layer like plain paper. It may have a heat fusible layer containing such a heat fusible compound. As the heat-melting compound, a colorless or white compound having a melting point of 65 to 150 ° C. is preferably used, and examples thereof include carnauba wax, beeswax, and candelin wax. The heat-fusible layer may contain a polymer such as polyvinylpyrrolidone, polyvinyl butyral, or vinyl acetate.

In order to apply the heat-sensitive transfer recording material of the present invention to a heat-sensitive transfer recording material capable of full-color image recording, a cyan heat-sensitive transfer layer containing the dye of the present invention and a thermal diffusivity capable of forming a magenta image. A total of three layers, that is, a magenta heat-sensitive transfer layer containing a dye and a yellow heat-transfer layer containing a heat-diffusible dye capable of forming a yellow image, may be sequentially and repeatedly coated on the same plane on a support. preferable. If necessary, a total of four heat-sensitive transfer layers containing a black image forming substance may be sequentially and repeatedly coated on the same plane.

In the heat-sensitive transfer recording method of the present invention, after the heat-sensitive transfer layer of the heat-sensitive transfer recording material and the image receiving material are superposed, heat corresponding to image information is applied to the heat-sensitive transfer recording material to form a metal source and a book. An image with a chelate dye formed by reaction with the dye of the invention is formed on the image receiving material. In this case, in the present invention, the dye represented by the general formula (1)
Alternatively, since the dye represented by (2) is used, it is possible to efficiently obtain a cyan image having high image density, high image stability, and favorable color reproduction. The metal source may be present in the image receiving material or may be present in the heat-meltable layer provided on the heat-sensitive transfer layer. The image forming method will be described with reference to the drawings. In FIG. 1A, when a metal source is present in the image receiving layer of the image receiving material 3 including the support 1 and the image receiving layer 2, the support 4 and the thermal transfer layer 5 are provided. The dye in the heat-sensitive transfer layer of the heat-sensitive transfer recording material 6 is made of, for example, diffused and transferred to the image-receiving material 3 by heat from the heating resistor 8 of the thermal head 7, and reacts with the metal source in the image-receiving layer 2 to form a chelate. It forms a pigment.

Further, in FIG. 1B, the thermal transfer layer 5
When a metal source is present in the heat-meltable layer 9 provided above, the dye in the heat-sensitive transfer layer 5 of the heat-sensitive transfer recording material 10 composed of the support 4, the heat-sensitive transfer layer 5 and the heat-meltable layer 9 For example, heat from the heating resistor 8 of the thermal head 7 diffuses and transfers to the heat-fusible layer 9, where it reacts with the metal source to form a chelate dye, and the heat-fusible layer containing the chelate dye cohesively breaks or Image receiving material 3 due to interfacial peeling
And the image is formed.

Examples of the metal source include inorganic or organic salts of metal ions and metal complexes, of which salts and complexes of organic acids are preferred. As metals, I-VII of the periodic table
Monovalent and polyvalent metals belonging to Group I can be mentioned, among which Al, Co, Cr, Cu, Fe, Mg, Mn, Mo, Ni, Sn, Ti and Zn.
Are preferred, and Ni, Cu, Cr, Co and Zn are particularly preferred. Specific examples of metal sources include Ni ²⁺ , Cu ²⁺ , Cr ²⁺ and Co ^2+.
And Zn ²⁺ and aliphatic salts such as acetic acid and stearic acid, and salts of aromatic carboxylic acids such as benzoic acid and salicylic acid.

The complex represented by the following general formula (7) can be particularly preferably used.

[0047]

[Chemical 11]

However, in the above formula, M represents a metal ion, preferably Ni ²⁺ , Cu ²⁺ , Cr ²⁺ , Co ²⁺ , Zn ²⁺ .

X represents a compound capable of forming a complex with a divalent metal ion, for example, chelate chemistry (5) (Nankodo).
The compound represented by the following general formula (8) is particularly preferable.

[0050]

[Chemical 12]

In the formula, R ⁴ and R ⁵ represent an alkyl group or an aryl group, Z represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an alkoxy group, an alkoxycarbonyl group or an aryloxycarbonyl group, and R ⁴ And Z or R ⁵ and Z may combine to form a ring.

The amount of the metal source added is usually 0.5 to 20 g / m ² , and preferably 1 to 1 with respect to the image receiving material or the heat-fusible layer.
5 g / m ² is more preferred.

The image-receiving material used in the present invention generally comprises paper, a plastic film, or a paper-plastic film composite as a support, and a polyester resin, polyvinyl chloride resin, vinyl chloride, etc. as an image-receiving layer thereon. And one or more polymer layers such as a copolymer resin with the above monomer (for example, vinyl acetate), polyvinyl butyral, polyvinyl pyrrolidone, and polycarbonate are formed. Further, the support itself may be used as an image receiving material.

[0054]

The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto.

Example 1 (Preparation of Ink) The following raw materials were mixed to obtain an ink of a uniform solution containing the heat diffusible dye according to the present invention.

Heat-diffusible dye (Ex. C-1) 5 g Polyvinyl butyral resin (BL-1, manufactured by Sekisui Chemical Co., Ltd.) 5 g Methyl ethyl ketone 200 ml (Preparation of heat-sensitive transfer recording material)
Heat-sensitive transfer recording material comprising a polyethylene terephthalate base having a thickness of 0.8 g / m ² on a polyethylene terephthalate base coated with a wire bar and dried to form a heat-sensitive transfer layer on the polyethylene phthalate film-1. It was created.

A nitrocellulose layer containing a silicone-modified urethane resin (SP-2105, manufactured by Dainichiseika) is provided as a sticking prevention layer on the back surface of the polyethylene terephthalate base.

(Preparation of Image Receiving Material) On a support having polyethylene laminated on both sides of paper (a polyethylene layer on one side contains a white pigment (TiO ₂ ) and a bluing agent), ester-modified silicone and the following were used as an image receiving layer. Metal sauce (approx. 3.5g / m
² ) containing polyvinyl chloride resin, each with a weight of 0.15 g
/ m ² , 5 g / m ² to obtain an image receiving material.

Metal sauce:

[0060]

[Chemical 13]

(Thermal Transfer Recording Method) The thermal transfer recording material and the image receiving material were superposed on each other, and a thermal head was applied from the back side of the thermal transfer recording material to perform image recording under the following recording conditions. An excellent cyan image was obtained.

(Recording conditions) Main scanning and sub scanning recording density: 8 dots / mm Recording power: 0.6 W / dot Heating time: The heating time is adjusted stepwise from 20 msec to 0.2 msec.

The cyan image thus obtained was evaluated (maximum density, chelating reactivity, fixing property, light resistance) and the storage stability of the heat-sensitive transfer material (ink sheet) was evaluated by the following methods. The obtained evaluation results are shown in Table 1.

<Evaluation of Maximum Density> The maximum reflection density of the image (usually, the part where the application time was the maximum) was measured by X-rite310TR.

<Chelation Reactivity> ◯: The chelate dye image is formed almost sufficiently Δ: The chelate dye is not sufficiently formed ×: The chelate dye is formed only in a part of the dyes <Evaluation of fixing property> Receiving of the obtained image Layer surface and thickness 18
The degree of transfer of the dye from the image-receiving layer to the nitrocellulose layer was overlapped with the coating surface of a sheet obtained by coating a 5 μm-thick nitrocellulose layer on a 0 μm polyethylene terephthalate film, and heating at 140 ° C. for 2 minutes. Was visually evaluated. The less the retransfer of the dye, the better the fixability.

◯: Retransfer is not observed. Δ: Retransfer is slightly observed. X: Retransfer is remarkable. <Evaluation of light resistance> The image is 72 with a xenon fade meter.
Irradiate for hours, D0 is the density before irradiation, D is the density after irradiation
Then, the light resistance was evaluated using (D / D0) × 100 (%) as the residual ratio of the dye.

<Evaluation of Storability of Ink Sheet> The ink surface of the ink sheet and the back surface of the ink sheet (sticking prevention layer surface) are overlapped and left at 55 ° C. for 3 days to check the migration state of the dye to the sticking prevention layer surface. The storability of the ink sheet was evaluated by visual observation.

◯: Almost no set-off is observed Δ: Set-off is recognized ×: Set-off is severe Examples 2 to 16 Dyes C-1 to C-2, C-3, C-4 in Example 1 , C-5, C-7,
C-9, C-13 and D-1, D-2, D-4, D-5, D-6, D-7, D-1
15 kinds of thermal transfer recording materials-2 to 16 were prepared in the same manner as in Example 1 except that 4 and D-17 were used, and image recording was performed under the same conditions. A cyan image was obtained.

These images and ink sheets were evaluated in the same manner as in Example 1. The results are shown in Table 1.

Comparative Examples 1 and 2 Two kinds of comparative thermal transfer recording materials were prepared in the same manner as in Example 1 except that the dyes were replaced with the comparative dyes A and B, and the same recording conditions were used. The image was recorded at.
The obtained image and ink sheet were evaluated in the same manner as in Example 1. The results are shown in Table 1.

[0071]

[Chemical 14]

[0072]

[Table 1]

As can be seen from Table 1, in the heat-sensitive transfer recording material of the present invention, a cyan image having excellent chelating reactivity, excellent image fixing property and light fastness at a high density can be obtained, and the ink sheet can be preserved. The property is also good.

Examples 17 to 18 On the polyethylene terephthalate film used as the support in Example 1, a heat-sensitive transfer layer containing a yellow image forming dye Y-1 (coating amount: 0.5 g / m ² ), magenta image forming Transfer layer containing dye M-1 for use in the present invention (coating amount 0.5 g / m ² ), cyan image forming dye C-1 according to the present invention (coating amount 0.5 g / m ² ).
A thermal transfer recording layer containing m ² ) was sequentially applied to prepare thermal transfer recording material-17. The same binder as in Example 1 was used for each heat-sensitive transfer layer.

Further, instead of the cyan image forming dye C-1 according to the present invention used in Example 17, D-1 (coating amount 0.5 g / m ² ).
A thermal transfer recording material-18 was prepared in the same manner as in Example 17 except that was used. Next, using the same image-receiving materials as in Example 1 for the above-mentioned thermal transfer recording materials-17 and 18, full-color images were prepared by a full-color printer CP3000D manufactured by Nikon Corporation, and full-color images showing good color reproducibility were obtained. Was given. Also,
The stability (fixability, light resistance) of this image was good.

Examples 19 to 20 5 g of a ball mill dispersion of p-toluamide, 7 g of polyvinylpyrrolidone and 3 g of gelatin as an intermediate layer on the heat-sensitive transfer recording materials of Examples 17 and 18-17 and 18, hardener H-10. .
100 ml of an aqueous solution containing 3 g has an amount of p-toluamide of 0.5 g.
It was coated so that it would be / m ² .

Further, on the intermediate layer, a metal source (coating amount 1.0 g / m ² ) shown in Example 1 as a heat-fusible layer, a UV inhibitor UV-1 (coating amount 0.1 g / m ² ), and an antioxidant were used. Carnauba wax (coverage 2.0g / m ² ) containing agent AO-1 (coverage 0.1g / m ² ) and ethylene-vinyl acetate copolymer (vinyl acetate content 20%, coverage 0.2g / m ² ) It was applied by hot melt coating to obtain thermal transfer recording materials-19 and 20.

Using the thermal transfer recording materials-19 and 20 and the image receiving material, full color image recording was carried out by a full color printer in the same manner as in Examples 17 and 18. As the image receiving material, white plain paper was used. The obtained full-color image was good in color reproducibility, gradation and image stability. The storability of the thermal transfer recording materials-19 and 20 was also good.

[0079]

[Chemical 15]

[0080]

According to the present invention, by using a dye having excellent thermal diffusivity and chelate reactivity, a highly stable cyan image can be obtained at a high density, and a heat-sensitive transfer recording material having good storability. Further, it is possible to provide a thermal transfer recording method capable of efficiently recording by using the recording medium.

[Brief description of drawings]

FIG. 1 is a sectional view showing a thermal transfer recording method of the present invention.

[Explanation of symbols]

 1 Support 2 Image Receiving Layer 3 Image Receiving Material 4 Support 5 Thermal Transfer Layer 6 Thermal Transfer Recording Material 7 Thermal Head 8 Heating Resistor 9 Thermal Melting Layer 10 Thermal Transfer Recording Material

Claims (4)

[Claims] 1. A support having at least the following general formula (1):
A heat-sensitive transfer recording material having a heat-sensitive transfer layer containing a dye represented by: [Chemical 1] [In the formula, each R ¹ represents a group capable of substituting on the benzene ring, and n represents an integer of 0 to 3. When n is 2 or more, a plurality of R ¹ may be the same or different. R ² represents a hydroxy group or an amino group. ] 2. A heat-sensitive transfer material having a heat-sensitive transfer layer containing the dye represented by the general formula (1) according to claim 1 on a support, an image-receiving material is overlaid, and heated according to image information, An image is formed by a chelate dye formed by a reaction between a dye and a metal ion, which is a thermal transfer recording method. 3. A support having at least the following general formula (2):
A heat-sensitive transfer recording material having a heat-sensitive transfer layer containing a dye represented by: [Chemical 2] [In the formula, R ¹¹ represents a group capable of substituting on the benzene ring,
¹² represents a group capable of substituting the isoquinoline ring, and p and q each represent an integer of 0 to 4. When p and q are 2 or more, a plurality of R ¹¹ and R ¹² may be the same or different,
Further, they may be bonded to each other to form a ring. R
¹³ represents a hydrogen atom, a halogen atom, or a monovalent substituent, and G is a chelatable group. ] 4. A heat-sensitive transfer material having a heat-sensitive transfer layer containing a dye represented by the general formula (2) according to claim 3 on a support, an image-receiving material is overlaid, and heated according to image information, An image is formed by a chelate dye formed by a reaction between a dye and a metal ion, which is a thermal transfer recording method.