JPH10193807A - Thermal transfer recording material and thermal transfer recording method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an image excelling in preservability such as fixability and light fastness by providing a thermal transfer material having specified pigments on a supporting body, superposing an image receiving material on the thermal transfer material, and forming an image by heating the thermal transfer material in accordance with image information. SOLUTION: A pigment providing material 6 is structured by providing a pigment providing layer 5 that becomes a thermal transfer material having pigments that are expressed by the formula on a supporting body 4, and an image receiving material provided with an image receiving layer 2 including a compound containing metal ions is superposed on the supporting body 1. And then an image is formed by giving heat to a heating resistor 8 borne on a thermal head 7 from the rear side of the pigment providing material 6 and separating both materials 3, 6. In the formula, Z1 , Z2 indicate a group of carbon atoms necessary for forming aromatic carbon rings and a group of atoms forming 5 or 6 heterocycles; Q represents 5 or 6 aromatic carbon rings and heterocycles.

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 an image having a high density and good image stability. The present invention relates to a thermal transfer recording method capable of efficiently recording an image with good image stability by using the method.

[0002]

2. Description of the Related Art Hitherto, as a method for obtaining a color hard copy, a color image recording material such as ink jet, electrophotography, thermal transfer, and silver halide photosensitive material has been studied. Among them, the thermal transfer material has advantages such as easy operation and maintenance, downsizing of the apparatus and cost reduction, and further low running cost.

In the thermal transfer recording of the thermal transfer system, a dye used in a thermal transfer material is important.
A thermal transfer material and an image forming method using a heat-diffusible dye capable of being chelated (hereinafter, referred to as a post-chelating dye) for the purpose of improving the stability of the obtained image, particularly fixing and light fastness, have been proposed. For example, it is described in JP-A-59-78893, JP-A-59-109349, and JP-A-60-2398. The image formed using the post-chelating dye disclosed in the above patent is excellent in light fastness and fixability, but is not sufficiently satisfactory in terms of the sensitivity of the thermal transfer material and the storability of the material itself. Further improvements have been desired. Further, the post-chelate dye disclosed in the above patents and the like forms a bidentate or tridentate chelate dye,
An azo group of a chromophore is used as a group that coordinates with a metal ion. In thermal transfer recording using these dyes, since the hue difference between the post-chelating dye and the chelating dye is large, if the chelating reaction during image formation is insufficient, the unreacted post-chelating dye absorption It is desired to further improve the color reproduction in the case where a full-color image is obtained due to the residual chelate dye or the irregular absorption of the formed chelate dye itself.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a heat-sensitive transfer recording material for obtaining an image having excellent image storability such as fixability and light fastness, and a heat-sensitive transfer recording method using this recording material. It is in.

[0005]

The above objects of the present invention have been attained by the following constitutions.

(1) A heat-sensitive transfer recording material characterized in that the support contains a dye represented by the following general formula (1).

[0007]

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(Wherein Z ₁ and Z ₂ represent a group of atoms necessary to form an aromatic carbon ring and a 5- or 6-membered heterocyclic ring, and Q represents a 5- or 6-membered aromatic carbon (2) A heat-sensitive transfer recording material comprising a support containing a dye represented by the following general formula (2).

[0009]

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(Wherein Z ₁ and Z ₂ represent a group of atoms necessary to form an aromatic carbocyclic ring and a 5- or 6-membered heterocyclic ring, and Q represents a 5- or 6-membered aromatic carbon ring). Represents a group of atoms forming a ring and a heterocyclic ring, and R ₄ represents a hydrogen atom or a monovalent substituent.) (3) A dye represented by the following general formula (3) or (4) on a support A thermal transfer recording material comprising at least one of the following.

[0011]

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(Wherein, Z ₁ and Z ₂ each represent a group of atoms necessary to form an aromatic carbon ring and a 5- or 6-membered heterocyclic ring, and Q represents a 5- or 6-membered aromatic carbon Represents a group of atoms forming a ring and a heterocyclic ring, R ₁ , R ₂ and R ₃ each represent a hydrogen atom or a monovalent substituent, and n represents 0, 1 or 2) (4) 4. A heat-sensitive transfer recording method, wherein an image-receiving material is superimposed on the heat-sensitive transfer recording material according to any one of the above items 3, and the heat-sensitive transfer recording material is heated according to image information to form an image.

(5) An image-receiving material containing a metal ion-containing compound is superimposed on the heat-sensitive transfer recording material as described in any one of (1) to (3) above, and the heat-sensitive transfer recording material is heated in accordance with image information to obtain the dye. A thermal transfer recording method, wherein an image is formed by a chelate dye formed by a reaction between the compound and a metal ion-containing compound.

In order to achieve the above object, the present inventors have conducted intensive studies and as a result of the research, have obtained a heat-sensitive transfer material having a novel dye having an indolo [3,2-b] quinoline nucleus on a support and an image-receiving material on the heat-sensitive transfer material. A thermal transfer recording method comprising: stacking materials; heating the thermal transfer material in accordance with image information to form an image; and laminating an image receiving material containing a metal ion-containing compound on the thermal transfer material. The above object of the present invention is achieved by a thermal transfer recording method, wherein a material is heated according to an image, and an image is formed by a chelate dye formed by a reaction between the dye and the metal ion-containing compound. That is, the present invention has been completed.

The present invention will be described in more detail. The present invention is characterized by having a novel dye having an indolo [3,2-b] quinoline nucleus, and its structure is represented by the general formula (1):
It is represented by (2), (3) or (4).

In the general formulas (1) to (4), Z ₁ and Z ₂ each represent a group of atoms necessary to form an aromatic carbon ring and a 5- or 6-membered heterocyclic ring, and Q represents 5 or 6
R ₁ , R ₂ , R ₃ , and R ₄ each represent a hydrogen atom or a monovalent substituent, and n represents 0, 1, or 2. Represent.

Z ₁ and Z ₂ represent a group of atoms necessary to form an aromatic carbocyclic ring and a 5- or 6-membered heterocyclic ring, and specifically include a benzene ring, a pyridine ring, a pyrimidine ring, and a furan. Ring, thiophene ring, thiazole ring, imidazole ring, naphthalene ring, 3H-pyrrole ring, oxazole ring, 3H-pyrrolidine ring, oxazolidine ring, imidazolidine ring, thiazolidine ring, 3H-indole ring, benzoxazole ring, benzimidazole ring, Examples include a benzothiazole ring, a quinoline ring, an isoquinoline ring, an indolenine ring, a barbitur ring, a thiobarbitur ring, a rhodanine ring, a hydantoin ring, a pyrazolidinedione ring, and a pyridinedione ring.

These rings may have a substituent,
There is no particular limitation on these substituents, and typical examples thereof include, for example, halogen, alkyl, cycloalkyl, aryl, anilino, acylamino, sulfonamide, alkylthio, arylthio, alkenyl, cycloalkenyl, alkynyl, heterocyclyl , Sulfonyl, sulfinyl, phosphonyl, acyl, carbamoyl, sulfamoyl, cyano, alkoxy, sulfonyloxy, aryloxy, heterocyclyloxy, siloxy, acyloxy, carbamoyloxy, amino, alkylamino, imide, ureido, ureidoamino, alkoxycarbonylamino, Spiro substituents and bridging hydrocarbon residues such as aryloxycarbonylamino, heterocyclylthio, thioureido, carboxy, nitro, sulfonate, etc. A.

Q represents a group of atoms forming a 5- or 6-membered aromatic carbocyclic ring and a heterocyclic ring, and may further have a substituent or a condensed ring on the ring. good. Specific examples of the ring include a benzene ring, a pyridine ring, a pyrimidine ring, a furan ring, a thiophene ring, a thiazole ring, an imidazole ring, a naphthalene ring, a 3H-pyrrole ring, an oxazole ring, a 3H-pyrrolidine ring, an oxazolidine ring, and an imidazolidine ring. Ring, thiazolidine ring, 3H-indole ring,
Benzoxazole ring, benzimidazole ring, benzthiazole ring, quinoline ring, isoquinoline ring, indolenine ring, barbitur ring, thiobarbitur ring, rhodanine ring, hydantoin ring, pyrazolidinedione ring, pyridinedione ring, etc. .

These rings may further form a condensed ring with another carbon ring (for example, a benzene ring) or a heterocyclic ring (for example, a pyridine ring). As a substituent on the ring, an alkyl group, an aryl group, an acyl group, an amino group, a nitro group, a cyano group,
There are an acylamino group, an alkoxy group, a hydroxy group, an alkoxycarbonyl group, a halogen atom and the like, and these groups may be further substituted.

R ₁ , R ₂ , R ₃ , and R ₄ each represent a hydrogen atom or a monovalent substituent, and examples of the monovalent substituent include an alkyl group, an aryl group, a heterocyclic group, an acyl group, Examples include an amino group, a nitro group, a cyano group, an acylamino group, a dialkylamino group, an alkoxy group, a hydroxy group, an alkoxycarbonyl group, a halogen atom image, and n represents 0, 1 or 2.

The following are specific examples of the dye of the present invention represented by formulas (1) to (4) of the present invention, but the present invention is not limited thereto.

[0023]

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[0024]

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[0025]

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[0026]

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Synthetic Example The novel dye having an indolo [3,2-b] quinoline nucleus of the present invention can be synthesized as an intermediate (Cp) by the method described in JP-A-8-21579, and further according to the following scheme. The novel dye (D1-1) of the present invention can be synthesized.

[0028]

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The thermal transfer material of the present invention comprises a thermal transfer layer having the dye of the present invention on a support. The heat-sensitive transfer layer is prepared by dissolving the dye of the present invention together with a binder in a solvent, or by dispersing the ink of the present invention in the form of fine particles in a solvent to form a heat-sensitive transfer layer-forming ink liquid. It can be formed by coating and drying as appropriate. The thickness of the heat-sensitive transfer layer is preferably from 0.1 to 10 μm in dry film thickness.

The binder is preferably a solvent-soluble polymer such as acrylic resin, methacrylic resin, polystyrene, polycarbonate, polysulfone, polyethersulfone, polyvinyl butyral, polyvinyl butyral, polyvinyl acetal, nitrocellulose and ethyl cellulose. These binders may be used not only by dissolving one kind or two or more kinds in an organic solvent, but also in the form of a latex dispersion. The amount of the binder used is preferably 0.1 to ²⁰ g per 1 m ² of the support.

As the organic solvent, alcohols,
(Eg, ethanol, propanol), cellosolves (eg, methylcellosolve), aromatics (eg, toluene, xylene), esters (eg, acetate),
Ketones (eg, acetone, methyl ethyl ketone), ethers (eg, tetrahydrofuran, dioxane) and the like can be mentioned.

The support has good dimensional stability,
Any material can be used as long as it can withstand the heating of the thermal head during recording, but thin paper such as condenser paper or glass paper, or a heat-resistant plastic film such as polyethylene terephthalate, polyamide, or polycarbonate is preferably used.

The thickness of the support is preferably from 2 to 30 μm, and the support is made of a polymer selected for the purpose of improving the adhesiveness with a binder and preventing transfer and dyeing of the dye to the support. It is preferable to have an undercoat layer. Further, a slipping layer may be provided on the back surface of the support (the side opposite to the thermal transfer layer) for the purpose of preventing the head from sticking to the support.

The heat-sensitive transfer recording material of the present invention is a support comprising a heat-sensitive transfer layer or a heat-sensitive transfer layer coated thereon for the purpose of using an image-receiving material described later which is not particularly provided with an image-receiving layer, such as plain paper. The upper layer may have a heat-fusible layer containing a heat-fusible compound as described in JP-A-59-106997. As the heat-fusible compound, a colorless or white compound that melts at a temperature of 65 to 150 ° C. is preferably used, and examples thereof include waxes such as carnauba wax, beeswax, and candeline wax.
In addition, these heat-meltable layers may contain a polymer such as polyvinylpyrrolidone, polyvinylbutyral, polyester, and 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 recording a full-color image, a yellow heat-sensitive transfer layer containing a heat-diffusible yellow dye capable of forming a yellow image, a magenta image A magenta thermal transfer layer containing a heat-diffusible magenta dye capable of forming a cyan image and a cyan heat-sensitive transfer layer containing a heat-diffusible cyan dye capable of forming a cyan image. It is preferable to repeatedly apply the coating on the top. Further, if necessary, a total of four heat-sensitive transfer layers containing a black image forming substance may be successively and repeatedly applied on the same surface.

In the thermal transfer recording method of the present invention, the thermal transfer layer of the thermal transfer recording material and the image receiving material are overlapped, and heat according to image information is applied to the thermal transfer recording material.
An image is formed on the image receiving material by the transferred dye or, preferably, an image is formed on the image receiving material by a chelate dye formed by a reaction of a metal ion-containing compound (hereinafter referred to as a metal source) with the dye of the present invention. When forming a chelate dye with a metal source, the metal source may be present in the image receiving material or may be present in the heat-fusible layer provided on the thermal transfer material.

Next, an example of the thermal transfer recording method of the present invention will be described with reference to FIGS. 1 (a) and 1 (b).

In the thermal transfer recording material of FIG.
The image receiving material 3 comprises an image receiving layer 2 containing a metal ion-containing compound provided on a support 1, and a dye donating material 6 comprises a dye donating layer 5 containing the dye according to the present invention on a support 4. Is provided. The image receiving material 3 and the dye donating material 6 may each be provided with an intermediate layer between the support and the support. As a thermal transfer recording method, the image receiving material 3 and the dye-providing material 6 are overlapped, and a heating resistor 8 carried on a thermal head 7 from the back side of the dye-providing material 6.
To provide heat in accordance with the image information, and then peel off both materials. At this time, a metal complex dye image formed by the reaction between the dye in the dye donating layer 5 and the metal ion-containing compound in the image receiving layer 2 is formed.

In the heat-sensitive transfer recording material of FIG. 1B, a heat-meltable layer 9 containing a metal ion-containing compound is laminated on the dye-providing material 6 of the heat-sensitive transfer recording material of FIG. The thermal transfer recording material 10 and the image receiving material 3 having no image receiving layer, such as the above-mentioned plain paper, are superimposed on each other, as shown in FIG.
The thermal head 7 is used in the same manner as in the thermal transfer recording method (a), and then the two materials are peeled off to form an image. In this method, when heat is applied by the thermal head 7, the metal complex dye is reacted between the dye-donating layer 5 and the heat-meltable layer 9 on the thermal transfer recording material 10 by reacting the dye with the metal ion-containing compound. Is generated, and then an image is formed on the image receiving material 3.

Examples of the metal source include inorganic or organic salts and metal complexes of metal ions. Among them, salts and complexes of organic acids are preferable. Metals include I to VI of the periodic table
Examples include monovalent and polyvalent metals belonging to Group II. Among them, Al, Co, Cr, Cu, Fe, Mg, Mn, Mo,
Ni, Sn, Ti and Zn are preferred, especially Ni, C
u, Cr, Co and Zn are preferred. Specific examples of the metal source include Ni ²⁺ , Cu ²⁺ , Cr ²⁺ , Co ²⁺ and Z 2.
Examples include n ²⁺ and an aliphatic salt such as acetic acid or stearic acid, or a salt of an aromatic carboxylic acid such as benzoic acid or salicylic acid.

Further, a complex represented by the following general formula (5) can be particularly preferably used.

General formula (5) {Me (Q ¹ ) _q1 (Q ² ) _q2 (Q ³ ) _q3 ｝ ^{p +} (V ⁻ ) _{p In} the above formula, Me is a metal ion, preferably N
i2 ⁺ , Cu2 ⁺ , Cr2 ⁺ , Co2 ⁺ , and Zn2 ⁺ . Q ¹ ,
Q ² and Q ³ each represent a coordination compound capable of coordinating with a metal ion represented by Me, and may be the same or different. These coordination compounds can be selected, for example, from the coordination compounds described in "Chelate Science (5)" (Nankodo). V ⁻ represents an organic anion group, and specific examples include a tetraphenylboron anion and an alkylbenzenesulfonic acid anion. q1 represents an integer of 1, 2, or 3, and q2 represents 1, 2,
Or 0, and q3 represents 1 or 0, which is determined depending on whether the complex represented by the general formula is tetradentate or hexadentate, or Q ¹ , Q ² , Q Determined by the number of ligands of ³ .

P represents 0, 1 or 2. When p is 0, the coordination compound represented by Q is an anionic compound, and the anionic compound represented by Q and the metal cation represented by Me are electrically neutralized. Means that. As the anionic compound, a compound represented by the following general formula (6) is preferable.

[0044]

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R ¹¹ and R ¹³ each represent an alkyl group or an aryl group which may be the same or different, and R ¹² represents an alkyl group, an alkoxy group, a halogen atom, an alkoxycarbonyl group, or a hydrogen atom. The addition amount of the metal source is usually 0.5 to 2 with respect to the image-receiving material or the heat-fusible layer.
Preferably ^{0g / m 2, 1~15g / m} 2 is more preferable.

The image receiving material used in the present invention is generally a paper, a plastic film, or a paper-plastic film composite as a support, on which an image receiving layer is formed of a polyester resin, a polyvinyl chloride resin, a vinyl chloride and other materials. And one or more polymer layers such as a copolymer resin with a monomer (for example, vinyl acetate or the like), polyvinyl butyral, polyvinyl pyrrolidone, and polycarbonate. In the image receiving material, a protective layer may be provided on the image receiving layer for the purpose of preventing fusion, and an intermediate layer may be provided between the support and the image receiving layer for the purpose of adhesion, heat insulation, or cushioning. Further, the support itself may be used as an image receiving material.

In the thermal transfer recording method, heating by a thermal head is generally used, but heating by energization or heating using a laser may be used. The application of heat by a thermal head etc.
It may be carried out from the back side of the dye-providing material or from the back side of the image-receiving material without any particular limitation. However, the back side of the dye-providing material is preferable in consideration of the transfer speed of the dye and the image density. Further, heating can be performed before, during or after the transfer of the dye to promote the transfer of the dye, the reaction with the metal source, and the fixing of the transferred dye.

[0048]

EXAMPLES The present invention will be described in more detail with reference to the following Examples, but it should not be construed that the present invention is limited thereto.

Example 1 -Preparation of Ink Liquid- The following raw materials were mixed to obtain an ink liquid of a uniform solution containing a dye according to the present invention. The solubility of the dye was good, and the suitability for ink formation was also good.

Exemplary dye (D1-2) 0.72 g polyvinyl acetoacetal resin (KY-24, manufactured by Denki Kagaku Kogyo) 1.08 g methyl ethyl ketone 26.4 ml toluene 1.6 ml-preparation of thermal transfer recording material- A 4.5-μm-thick polyethylene terephthalate base was coated using a wire bar and dried so that the coating amount after drying was 2.3 g / m ^2, and a heat-sensitive transfer layer was formed on a polyethylene phthalate film. Thermal transfer recording material-1 was prepared. On the back surface of the polyethylene terephthalate base, a silicon-modified urethane resin (SP-210) was used as a sticking prevention layer.
5, a nitrocellulose layer containing Dainichi Seika).

In the same manner as described above, heat-sensitive transfer materials-1 to 12 using the dyes shown in Table 1 were prepared.

-Preparation of Image Receiving Material- A support in which polyethylene is laminated on both sides of a paper (a white pigment (TiO ₂ ) is applied to the polyethylene layer on one side)
And a bluing agent), and dried by applying a coating solution having the following composition so that the coating amount after drying would be 7.2 g.
1 was created.

Metal source (described below) 4.0 g Polyvinyl butyral resin (BX-1, manufactured by Sekisui Chemical Co., Ltd.) 6.0 g Polyester modified silicone 0.3 g

[0054]

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-Thermal transfer recording method-The thermal transfer recording materials-1 to 12 and the image receiving material-1 are overlapped, and a thermal head is applied from the back side of the thermal transfer recording material.
Image recording was performed with a thermal printer to obtain images-1 to 12 having excellent gradation.

After recording, the maximum density of the image, the sensitivity of the recording material, and the image storability were evaluated as follows. Table 1 shows the results.

Evaluation of maximum density: The maximum reflection density of an image (usually, the portion where the application time was the maximum) was measured by X-rit310TR.

Evaluation of sensitivity: When the density of the image formed by the thermal transfer material-11 becomes 1.0, the applied energy is 1
Then, the relative applied energy of each material was determined.
The smaller the number, the higher the sensitivity.

Light fastness: The obtained image was irradiated with light using a xenon fade meter for 5 days to evaluate the light fastness. Table 1 shows the results of the dye residual ratio after light irradiation. The dye remaining rate was D ₀ before light irradiation, and D ₀ after light irradiation.
As D / D ₀ × 100.

[0060]

[Table 1]

[0061]

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As shown in Table 1, the heat-sensitive transfer recording material using the dye of the present invention has high sensitivity, and can provide an image with high density and good image storability.

Example 2 In the preparation of the image receiving material of Example 1, the image receiving material was
An image receiving material-2 having the same composition as that of the image receiving material-1 was prepared except that the metal source was removed from 1.

Evaluation of fixability: images 1 and 2 obtained in Example 1
After standing added a load of 20 kg / m ² 48 hours the 12 image receiving surface of the superposing an image receiving surface of the image receiving material -2 40 ° C., drawn visually the transfer of dye to the image receiving material -2 peel Was observed.

As a result, in any of the images recorded by the thermal transfer recording method of the present invention, dye transfer to the image receiving material-2 was not observed, but dye transfer was observed in the images 11 and 12. That is, it is understood that an image having excellent fixability can be obtained according to the thermal transfer recording method of the present invention.

Example 3-Preparation of Ink Liquid-The following raw materials were mixed to obtain an ink liquid of a uniform solution containing the dye according to the present invention.

The solubility of the dye was good, and the suitability for ink formation was also good.

Illustrative dye D1-1 0.72 g polyvinyl acetoacetal resin (KY-24, manufactured by Denki Kagaku Kogyo) 1.08 g methyl ethyl ketone 26.4 ml toluene 1.6 ml-preparation of thermal transfer recording material- A heat-sensitive transfer obtained by coating a 4.5 μm-thick polyethylene terephthalate base with a wire bar and drying so that the coated amount after drying is 2.3 g / m ² , and forming a heat-sensitive transfer layer on a polyethylene phthalate film. Recording material-13 was prepared. On the back surface of the polyethylene terephthalate base, a silicon-modified urethane resin (SP-210) was used as a sticking prevention layer.
5, a nitrocellulose layer containing Dainichi Seika).

In the same manner as described above, thermal transfer materials -13 to 22 using the dyes shown in Table 2 were prepared.

-Preparation of image receiving material- A support in which polyethylene is laminated on both sides of paper (a white pigment (TiO ₂ ) is applied to the polyethylene layer on one side)
And a bluing agent), and dried by applying a coating solution having the following composition so that the coating amount after drying would be 7.2 g.
3 was created.

Polyvinyl butyral resin (BX-1, manufactured by Sekisui Chemical Co., Ltd.) 6.0 g Polyester modified silicone 0.3 g-Thermal transfer recording method-The thermal transfer recording materials-13 to 22 and the image receiving material-3 are overlapped and heat-sensitive. The head was applied from the back side of the thermal transfer recording material, and image recording was performed with a thermal printer to obtain images -13 to 22 having excellent gradation. After recording, the maximum density of the image and the image storability were evaluated in the same manner as in Example 1, and the sensitivity of the recording material was evaluated as follows. Table 2 shows the results.

Evaluation of sensitivity: When the density of the image formed by the thermal transfer material 21 becomes 1.0, the applied energy is 1
Then, the relative applied energy of each material was determined.
The smaller the number, the higher the sensitivity.

[0073]

[Table 2]

As shown in Table 2, the heat-sensitive transfer recording material using the dye of the present invention has high sensitivity, and can provide an image with high density and good image storability.

[0075]

According to the thermal transfer recording material of the present invention and the thermal transfer recording method using the recording material, an image having excellent image storability such as fixability and light resistance can be obtained, and high sensitivity recording of an ink sheet can be obtained. Becomes possible.

[Brief description of the drawings]

FIGS. 1A and 1B are schematic cross-sectional views showing a thermal transfer recording material of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 support 2 image receiving layer 3 image receiving material 4 support 5 dye donating layer 6 dye donating material 7 thermal head 8 heat generating resistor 9 heat fusible layer 10 thermal transfer recording material

──────────────────────────────────────────────────の Continuing on the front page (51) Int.Cl. ⁶ Identification symbol FI B41M 5/26 101H (72) Inventor Tatsuo Tachio Sakuracho, Hino-shi, Tokyo In-house Konica Corporation (72) Inventor Yoriko Nakayama Tokyo 1 Konica Stock Company, Sakuracho, Hino-shi

Claims (5)

[Claims] 1. A thermal transfer recording material comprising a support and a dye represented by the following general formula (1). Embedded image (Wherein, Z ₁ and Z ₂ represent a group of atoms necessary to form an aromatic carbocyclic ring and a 5- or 6-membered heterocyclic ring, and Q represents 5
Represents a group of atoms forming a 6-membered or 6-membered aromatic carbocyclic ring and a heterocyclic ring. ) 2. A heat-sensitive transfer recording material comprising a support containing a dye represented by the following general formula (2). Embedded image (Wherein, Z ₁ and Z ₂ represent a group of atoms necessary to form an aromatic carbocyclic ring and a 5- or 6-membered heterocyclic ring, and Q represents 5
Represents a group of atoms forming a 6- or 6-membered aromatic carbocyclic ring and a heterocyclic ring, and R ₄ represents a hydrogen atom or a monovalent substituent. ) 3. The following general formula (3) or (4) on a support:
A heat-sensitive transfer recording material comprising at least one dye represented by the formula: Embedded image (Wherein, Z ₁ and Z ₂ represent a group of atoms necessary to form an aromatic carbocyclic ring and a 5- or 6-membered heterocyclic ring, and Q represents 5
R ₁ , R ₂ , and R ₃ each represent a hydrogen atom or a monovalent substituent, and n represents 0, 1, or 2. Represent) 4. A heat-sensitive transfer recording material according to claim 1, wherein the heat-sensitive transfer recording material is overlaid with an image-receiving material, and the heat-sensitive transfer recording material is heated according to image information to form an image. Thermal transfer recording method. 5. The dye according to claim 1, wherein an image-receiving material containing a metal ion-containing compound is superimposed on the heat-sensitive transfer recording material according to claim 1, and the heat-sensitive transfer recording material is heated in accordance with image information. A thermal transfer recording method, wherein an image is formed by a chelate dye formed by a reaction between the compound and a metal ion-containing compound.