JPH0259799B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a heat-sensitive transfer recording medium, and more specifically, a heat-sensitive transfer recording medium that can prevent peeling of a heat-fusible coloring material layer and can be suitably used for multiple printing. Regarding recording media.

[Prior Art] Conventionally, as an adhesive layer interposed between a support and a heat-fusible coloring material layer, polyester resin, vinyl chloride-vinyl acetate copolymer, acrylic resin, vinyl chloride resin (Japanese Patent Application Laid-open No. 55 -105579), polyamide resin (see JP-A-56-116193),
It is disclosed that polyvinyl butyral resin, epoxy resin (see JP-A-57-36698), and saturated linear polyester resin (see JP-A-59-96992) are used.

[Problems to be Solved by the Invention] However, since the conventional heat-melting coloring material layer uses a compound with relatively low polarity such as wax or higher fatty acid as a main component, it is difficult to use polyester or polyamide as a support. When using a polymer film with relatively high polarity such as, if an adhesive substance with relatively high polarity such as polyvinyl butyral resin, epoxy resin, or polyester resin is used for the adhesive layer, the adhesive force with the support will be strengthened. However, the adhesive strength with the coloring material layer is weak, and the film is likely to peel off at the interface between the coloring material layer and the adhesive layer, making it difficult to print multiple times. Especially when increasing the printing power,
Alternatively, the problem becomes noticeable when additives such as surfactants are mixed into the coloring material layer. This film peeling tends to occur at the edges of the print, and as a result, so-called blank areas occur in the second print, resulting in very unclear characters.

Therefore, the present invention can strengthen the adhesive force between the support and the coloring material layer and prevent the coloring material layer from peeling off, especially when the applied power is increased or when additives such as surfactants are mixed. It is an object of the present invention to provide a heat-sensitive transfer recording medium that can be printed multiple times without causing the above-mentioned film peeling.

[Means for Solving the Problems] As a result of intensive research, the present invention provides a thermal transfer recording medium having a heat-fusible coloring material layer on a support via an adhesive layer. We have discovered that the above technical problem can be solved and the object of the present invention can be achieved by containing at least one compound selected from the group B and at least one compound selected from the following group B, and we have arrived at the present invention. Ivy.

[Group A] polycarbonate resin [Group B] Vinyl acetate copolymer Acrylate copolymer The present invention will be explained in detail below.

The thermal transfer recording medium of the present invention has an adhesive layer formed on a support, and one or more heat-melting coloring material layers formed thereon. Note that when two or more coloring material layers are formed, an intermediate layer may be provided between each coloring material layer.

In the present invention, the adhesive layer contains at least one compound selected from the above group A, that is, a polycarbonate resin, and at least one compound selected from the above group B, that is, a vinyl acetate copolymer and/or an acrylate copolymer. Contains a combination of combinations.

The polycarbonate resin used in the present invention is
It can be obtained by the reaction between a diol and phosgene or the transesterification reaction between diallyl carbonate and a diol.

Examples of diols include hydroquinone, bisphenol A, ethylene glycol hydroquinone ether, and the like.

The polycarbonate resin used in the present invention can be obtained as a commercial product, and examples thereof include "Panlite L-1250" and "Panlite K-1300" (manufactured by Teijin Chemicals).

The vinyl acetate copolymer used in the present invention means a copolymer obtained by a copolymerization reaction of a vinyl acetate monomer and another vinyl monomer. Examples of other vinyl monomers include ethylene, vinyl chloride, vinyl stearate, vinyl ethyl ether, N-vinylpyrrolidone, acrylamide, methyl acrylate, acrylonitrile, methyl methacrylate, styrene, crotonic acid, maleic anhydride, acrylic acid, Methacrylic acid and the like can be used. Among these, ethylene and vinyl chloride are preferred. As for the copolymerization composition ratio, it is preferable that vinyl acetate is contained in an amount of 5% by weight or more, more preferably 10% by weight or more. The vinyl acetate portion may be partially saponified to form a vinyl ether, or may contain other substituents.

The vinyl acetate copolymer can also be obtained as a commercial product, for example, “NUC-3145”, “NUC
-3460,” “NUC-3160,” and “NUC-3185” (manufactured by Nippon Unicar Co., Ltd.).

The acrylate copolymer used in the present invention means a copolymer obtained by a copolymerization reaction of an acrylate monomer and another monomer.

Examples of acrylate monomers include methyl acrylate, ethyl acrylate, propyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, cyclohexyl acrylate, aryl acrylate, benzyl acrylate, and the like. Among them, ethyl acrylate,
Butyl acrylate is particularly preferred.

Other monomers to be copolymerized include, for example, ethylene, vinyl chloride, vinyl stearate, vinyl ethyl ether, N-vinylpyrrolidone, acrylamide, methyl acrylate, acrylonitrile, methyl methacrylate, styrene, crotonic acid, maleic anhydride. Acid, acrylic acid, methacrylic acid, etc. can be used. Among these, ethylene and vinyl chloride are preferred. As for the copolymerization composition ratio, the acrylate monomer is preferably contained in an amount of 5% by weight or more, more preferably 10% by weight or more. The acrylate copolymer can also be obtained as a commercial product, for example,
"DPDJ-9169", "NUC-6107", "NUC-6070"
(manufactured by Nippon Unicar Co., Ltd.), etc.

Although the mixing ratio of the compound of the above group A and the compound of the above group B is not limited, it is preferable that the compound of the group A is 5 to 80% by weight, more preferably 10 to 60% by weight.
Weight%. On the other hand, it is preferable that the compound of the above group B is 95 to 20% by weight, more preferably 90 to 40% by weight.
Good weight percentage. In the sense that the adhesive force with the support is particularly strong when the applied power is increased or when additives such as surfactants are added, the compounds of Group A are 5
The amount of the compound of group B is preferably 20% by weight or more, and on the other hand, in order to further improve the adhesive strength between the adhesive layer and the heat-melting coloring material layer, the amount of the compound of group B is preferably 20% by weight or more.

The adhesive layer of the present invention may contain a polymer or composition that does not belong to either Group A or Group B to the extent that the effects of the present invention are not impaired. Appropriate amounts of other additives such as surfactants may also be included.

Methods for forming the adhesive layer of the present invention on a support include, for example, a hot melt coating method and a solvent coating method, and examples of coating methods include a reverse roll coater method, an extrusion coater method, a gravure coater method, and a wire bar coater method. Law etc. will be adopted. The thickness of the adhesive layer formed by the above method is preferably 0.1 to 3 μm, more preferably 0.3 to 1 μm.

As the heat-melting coloring material layer coated on the adhesive layer of the present invention, various heat-melting coloring material layers can be used without particular limitation, but the following heat-melting coloring material layers are preferably used. I will explain about it.

The heat-melting substance used in the heat-melting coloring material layer in the present invention is a substance that is solid at room temperature and reversibly becomes a liquid phase when heated. Plant waxes such as lily wax and esparto wax, animal waxes such as beeswax, insect wax, serrata wax, spermaceti wax, petroleum waxes such as paraffin wax, microcluristerine wax, ester wax, oxidized wax, montan wax, ozokerite, In addition to waxes such as mineral waxes such as ceresin; higher fatty acids such as palmitic acid, stearic acid, margaric acid, and behenic acid; and higher fatty acids such as palmityl alcohol, stearyl alcohol, behenyl alcohol, margaryl alcohol, myricyl alcohol, and eicosanol. Alcohol; cetyl palmitate,
Higher fatty acid esters such as myricyl palmitylate, cetyl stearate, and myricyl stearate; amides such as acetamide, propionic acid amide, palmitic acid amide, stearic acid amide, and amide wax; these may be used alone. It may be used in combination. Among these, higher amides such as palmitic acid amide, stearic acid amide, oleic acid amide, and amide wax are particularly preferred. Further, the "heat-melting solid component that is solid at room temperature" described in JP-A-54-68253 may also be used.

In the present invention, the heat-melting coloring material layer may contain a polymer compound. This polymer compound is not particularly limited and can be used as long as it has a softening point or melting point of 60 to 150° C. and improves the film formability of the heat-melting coloring material layer.

Specific examples of polymer compounds preferably used in the present invention include polybutadiene, polystyrene,
Neoprene, nitrile rubber, polymethyl methacrylate, polyethyl acrylate, polyvinyl acetate, polyvinyl chloride, polychloromethylacrylate, ethylcellulose, nitrocellulose, polyethylene terephthalate, polymethacrylonitrile, cellulose acetate, polyvinylidene chloride, nylon 6, Nylon 6,6, polyacrylonitrile, polycarbonate, polyamide, ethylene
Ethyl acrylate copolymer, ethylene-vinyl acetate copolymer, polyethylene, polypropylene,
Examples include petroleum resin, polyvinyl alcohol, polyacetal, fluororesin, silicone resin, natural rubber, chlorinated rubber, olefin rubber, phenol resin, urea resin, melamine resin, polyimide, etc., and these may be used alone. However, they may also be used in the form of a mixture (polymer blend). Preferred examples include polybutadiene, ethylene-ethyl acrylate copolymer, ethylene-vinyl acetate copolymer, polyethylene, polypropylene, petroleum resin, etc. Particularly preferred are ethylene-vinyl acetate copolymer, ethylene-vinyl acetate copolymer, and the like.
Examples include ethyl acrylate copolymers and petroleum resins, and it is preferable to use one type or a combination of two or more of these.

The heat-melting color material layer of the present invention may contain a surfactant. The surfactant may be any of nonionic surfactants, cationic surfactants, anionic surfactants, amphoteric surfactants, etc., such as polyethylene glycol, polyethylene glycol monoester, polyethylene glycol diester, polyoxy Nonionic surfactants such as ethylene sorbitan ester, polyoxyethylene alkyl ether, polyoxyester nonyl phenyl ether, polyglycerin ester: octadecylamine acetate,
Cationic surfactants such as alkyltrimethylammonium chloride, polyoxyethylene octadecylamine, polyoxyethylene alkylamine, and polymeric amines: fatty acid soda soap, fatty acid potash soap, stearic acid soap, alkyl ether sulfate (Na salt), pine Coal alcohol, sodium sulfate ester, sodium dodecylbenzenesulfonate, sodium n-dodecylbenzenesulfonate (soft type), sodium alkylmethyltaurate, sodium oleoylmethyltaurate, sodium dioctylsulfosuccinate, polymeric anion (polymer) Anionic surfactants such as carboxylic acid type): Examples include amphoteric surfactants such as hydroxyethylimidazolyl sulfate, imidazoline sulfonic acid, and alkyl amino acids.

The colorant used in the heat-melting color material layer of the present invention may be appropriately selected from various pigments, and is preferably a direct dye, an acid dye, a basic dye, a disperse dye, an oil-soluble dye (a metal-containing oil-soluble (including dyes), etc. The coloring matter used in the coloring material layer of the present invention may be any pigment that can be transferred (transferred) together with the heat-melting substance, and may be a pigment in addition to the above. In addition, specifically, the following can be mentioned. That is, as the yellow pigment, Kayalon Polyester Light Yellow 5G-S (Nippon Kayaku),
Oil Yellow S-7 (white clay), Eisenspiron Yellow GRH Special (Hodogaya), Sumiplast Yellow FG (Sumitomo), Eisenspiron Yellow GRH (Hodogaya), etc. are preferably used. As a red pigment, Diaceriton Fastred R
(Mitsubishi Kasei), Dianics Brilliant Reed
BS-E (Mitsubishi Kasei), Sumiplast Stretch FB (Sumitomo), Sumiplast Stretch HFG (Sumitomo), Kayalon Polyester Pink RCL-E (Nippon Kayaku), Eisen Spiron Red GEH Special (Hodogaya) ,
etc. are preferably used. Blue pigments include Diaceritone Fast Brilliant Blue R (Mitsubishi Kasei), Dianics Blue EB-E (Mitsubishi Kasei), Kayalon Polyester Blue B-SF Conc (Nippon Kayaku), and Sumiplast Blue 3R (Sumitomo). , Sumiplast Blue G (Sumitomo), etc. are preferably used. In addition, as a yellow pigment, Hansa Yellow 3G,
Tartrazine Lake, etc. are used, and red pigments include Brilliant Carmine FB-Pure (Sanyo Color), Brilliant Carmine 6B (Sanyo Color),
Alizarin lake, etc. are used, as the blue pigment, cerulean blue, Sumikaprint Cyanine Blue GN-O (Sumitomo), phthalocyanine blue, etc. are used, and as the black pigment, carbon black, oil black, etc. are used. Among these, carbon black is preferably used.

The composition ratio of the heat-fusible coloring material layer of the present invention is not limited, but the content of the heat-fusible substance is 30 to 95 parts per 100 parts (parts by weight, same hereinafter) of the total solid content of the heat-fusible coloring material layer.
part (more preferably 40 to 90 parts), colorant 5 to 40 parts (more preferably 10 to 35 parts), and polymer compound 0 to 90 parts.
It is preferable that the amount of the surfactant is 30 parts (more preferably 4 to 20 parts) and the surfactant is 0 to 60 parts (more preferably 5 to 50 parts).

The heat-melting coloring material layer of the present invention may contain various additives in addition to the above-mentioned components. For example, vegetable oils such as castor oil, linseed oil, olive oil, animal oils such as whale oil, and mineral oils may be suitably used.

In the present invention, it is effective to include polyethylene glycol diester among the above-mentioned surfactants in the heat-melting coloring material layer. in this case,
At least one selected from the following wax compound group
It is more effective when used in combination with a heat-melting substance. A preferred example of this will be explained below.

The polyethylene glycol diester is polyethylene glycol with fatty acids ester bonded to both ends, and is preferably solid or paste-like at room temperature (25°C), more preferably 40 to
It is preferable to have a melting point of 100°C, particularly a melting point of 45 to 80°C, from the viewpoint of blocking resistance and sensitivity.

The wax compounds used in the present invention include waxes that are solid at room temperature, preferably waxes with a melting point (measured by Yanagimoto MPJ-2 type) of 40 to 80°C, and specifically the waxes listed below. is used.

Animal-based waxes include beeswax, insect wax,
Examples include seratsukuro, whale wax, wool wax, etc.
Examples of plant-based waxes include carnauba wax, wood wax, auricilla wax, esparto wax, and chianderilla wax; examples of mineral-based waxes include montan wax, ozokerite, and ceresin; and examples of petroleum-based waxes include paraffin wax, Examples of synthetic hydrocarbon waxes include fiberglass waxes, polyethylene waxes, low molecular weight polypropylene, low molecular weight polyethylene and derivatives thereof, and modified As wax,
Examples include oxidized wax, montan wax derivatives, paraffin or micro wax derivatives. These may be used alone or in combination of two or more.

Molecular weight (weight average molecular weight, same hereinafter) of polyethylene glycol diester used in the present invention
varies depending on the composition of the wax and the properties of the compound, but is preferably 400 to 20,000, more preferably 6,000.
~18,000, and the molecular weight of the ethylene oxide part in the molecule is preferably 70 or more and 20,000 or less, especially
A value of 4,000 or more and 16,000 or less is preferable from the viewpoint of blocking resistance and printing characteristics. In addition, the diester portion improves the miscibility with the heat-melting substance compared to polyethylene glycol ester or different polyethylene glycols, or when the heat-melting coloring material layer contains carbon black. , it exhibits the effect of not deteriorating its dispersibility, and also exhibits the effect of providing stable high-density multiple transfers and high print quality even when paper with low surface smoothness is used as the transfer paper. .

The diester moiety varies depending on the molecular weight of the ethylene oxide moiety, but is generally represented by the following formula.

In the above formula, R ₁ and R ₂ may be the same or different and represent a saturated or unsaturated hydrocarbon group, or a saturated or unsaturated hydrocarbon group-containing group (aromatic), and n is 1 The above is preferably an integer of 2 to 450. Typical examples of the diester moiety include those derived from fatty acids, namely palmitic acid,
Examples include those derived from margaric acid, stearic acid, arachidic acid, behenic acid, lignoceric acid, montanic acid, melisic acid, palmitoleic acid, petrosenic acid, oleic acid, erucic acid, ceracoleic acid, di-, tri-, and tetraenoic acid. It will be done.

In the above formula, preferred R ₁ and R ₂ are:
Examples include saturated or unsaturated hydrocarbons derived from fatty acids, and more preferably hydrocarbons having 10 to 50 carbon atoms. Also, although it varies depending on the molecular weight of the ethylene oxide moiety, if the number of carbon atoms is too small, stickiness will occur and blocking resistance will deteriorate, while if the number of carbon atoms is too large, the melting point will become too high and sensitivity will decrease. A carbon number of 15 to 30 is particularly preferable.

In such a preferred embodiment, the composition ratio of the heat-melting coloring material layer of the present invention is not limited, but the total solid content of the heat-melting coloring material layer is 100 parts (parts by weight, the same hereinafter).
5 to 80 parts (more preferably 10 to 70 parts) of the heat-melting substance, 5 to 50 parts (more preferably 10 to 30 parts) of the colorant, and 3 to 80 parts of polyethylene glycol diester (more preferably 5 to 50 parts), and the polymer compound is preferably 0 to 20 parts (more preferably 5 to 15 parts).

The heat-melting coloring material layer of the present invention is coated on the adhesive layer in the same manner as the adhesive layer described above, and has a thickness of 3 to 3.
The thickness is preferably 50 μm, more preferably 5 μm.
It is sufficient if it is set to ~20 μm. In addition, in the case of a multilayer configuration,
The thickness of the coloring material layer may be sufficient for one thermal transfer, or may be sufficient for multiple thermal transfers.

The support used in the thermal transfer recording medium of the present invention preferably has heat-resistant strength, high dimensional stability, and high surface smoothness. Examples of materials include papers such as plain paper, condenser paper, laminated paper, and coated paper; resin films such as polyethylene, polyethylene terephthalate, polystyrene, polypropylene, and polyimide; and paper.
A resin film composite, a metal sheet such as aluminum foil, etc. are all suitably used. The thickness of the support is usually about 60 μm or less, preferably 1 to 25 μm, more preferably 1.5 to 15 μm, in order to obtain good thermal conductivity.
Particularly preferably, the thickness is in the range of 1.5 to 8 μm. The thermal transfer recording medium of the present invention may have an overcoat layer (for example, a protective layer), and the structure on the back side of the support is arbitrary.
A backing layer such as an anti-stacking layer may also be provided.

[Example] Examples will be given below, but the present invention is not limited thereto. In addition, "part" used below
indicates "parts by weight".

Example 1 Composition A below was applied onto a 3.5 μm thick polyethylene terephthalate film using a wire bar and dried with air at 80°C. In this way, an adhesive layer with a dry thickness of 0.7 μm was obtained.

[Composition A]

Polycarbonate resin (Panlite L-1250 manufactured by Teijin Kasei Co., Ltd.) 0.7 parts Ethylene-vinyl acetate copolymer (NUC3185 manufactured by Nippon Unicar Co., Ltd.) 3.3 parts Dichloroethane 20 parts Next, the following composition B was heated to 110°C using a sand grinder for 4 hours. Spread out time.

[Composition B]

Carbon black 13 parts Diacarna 30 20 parts Polyethylene wax (Weissen0252C manufactured by Nippon Seiro Co., Ltd.) 10 parts Carnauba wax 17 parts Parafin wax (SP0145 manufactured by Nippon Seiro Co., Ltd.)
30 parts ethylene-vinyl acetate copolymer (NUC3160 manufactured by Nippon Unicar Co., Ltd.) 10 parts This dispersion was hot-melted onto the adhesive layer using a wire bar to form a book having a heat-melting coloring material layer with a film thickness of 8.0 μm. A thermal transfer recording medium of the invention was obtained.

Print this using a serial type thermal printer at 0.9
Solid black printing was performed by applying mj/dot energy. After printing once, adjust the position of the thermal head and use the same part of the recording medium.
Repeated printing was performed three times. At this time, printing was performed using high-quality paper with a Beck smoothness of 100 sec as the transfer paper.

As a result, there was no film peeling at all, there was little decrease in density even after printing was performed three times, and high-density printing was possible. The above results are shown in Figure 1. FIG. 1 is a graph showing the relationship between the number of printings and the optical reflection density, where the horizontal axis is the number of printings and the vertical axis is the optical reflection density.

Example 2 In Example 1, ethylene-ethyl acrylate copolymer (NUC6070 manufactured by Nippon Unicar Co., Ltd.) was substituted for the ethylene-vinyl acetate copolymer of composition A.
An adhesive layer having a thickness of 0.7 μm similar to that in Example 1 was obtained using the following method.

The heat-sensitive transfer recording medium of the present invention has a heat-melt coloring material layer having a thickness of 8.0 μm by hot-melting a dispersion of composition B (coloring material layer composition) onto the adhesive layer using a wire bar. I got it.

Solid black printing was performed on this in the same manner as in Example 1.

As a result, there was no film peeling at all, there was little decrease in density even after printing three times, and high-density printing was possible. The above results are shown in Figure 1.

Comparative Example 1 Composition C below was applied onto a 3.5 μm thick polyethylene terephthalate film using a wire bar and dried with air at 80°C. In this way, an adhesive layer with a dry thickness of 0.7 μm was obtained.

[Composition C]

Ethylene-vinyl acetate copolymer (NUC3185 manufactured by Nippon Unicar Co., Ltd.) 4 parts Xylene 96 parts A heat-fusible coloring material layer having the same composition as in Example 1 was coated on top of this adhesive layer to a film thickness of 8.0 μm. A thermal transfer recording medium was obtained.

As in Example 1, solid black printing was attempted many times.

As a result, during the first printing, film peeling occurred around the solid black area, and during the second printing, the peeled part of the film came out white, making it impossible to print multiple times.

Comparative Example 2 Composition D below was applied onto a 3.5 μm thick polyethylene terephthalate film using a wire bar and dried with air at 80°C. In this way, an adhesive layer with a dry thickness of 0.7 μm was obtained.

[Composition D] Ethylene-ethyl acrylate copolymer (NUC6070 manufactured by Nippon Unicar Co., Ltd.) 4 parts xylene 96 parts On this adhesive layer, a heat-melting coloring material layer having the same composition as in Example 1 was applied to a thickness of 8.0 μm. A thermal transfer recording medium was obtained.

Solid black printing was performed many times in the same manner as in Example 1.

As a result, although it was possible to print many times, the density decreased each time the printing was repeated, and the ability to print multiple times was poor.

Comparative Example 3 Composition E below was applied onto a 3.5 μm thick polyethylene terephthalate film using a wire bar and dried with air at 80°C. In this way, an adhesive layer with a dry thickness of 0.7 μm was obtained.

[Composition E]

Polyester resin (Polyester LP-033 manufactured by Nippon Gosei Kagaku Co., Ltd.) 4 parts Tetrahydrofuran 96 parts On this adhesive layer, a heat-melting coloring material layer having the same composition as in Example 1 was applied to a thickness of 8.0 μm. A thermal transfer recording medium was obtained by coating.

Solid black printing was performed many times in the same manner as in Example 1.

As a result, although it was possible to print many times, the density decreased each time the printing was repeated, and the ability to print multiple times was poor.

Comparative Example 4 In Comparative Example 3, polycarbonate resin (Panlite L) was used instead of the polyester resin of Composition E.
-1250 (manufactured by Teijin Chemicals) and dichloroethane as the solvent, an adhesive layer with a thickness of 0.7 μm similar to that of Comparative Example 3 was obtained.

A heat-melting coloring material layer having the same composition as in Example 3 was coated on this adhesive layer to a thickness of 8.0 μm to obtain a heat-sensitive transfer recording medium.

This was printed many times in the same manner as in Example 3.

As a result, during the first printing, transfer occurred near the interface with the adhesive layer, and the density of the second printing decreased rapidly, resulting in poor multi-printability. The above results are shown in Figure 1.

Example 3 Same as Examples 1 and 2 except that the same adhesive layer as in the example was used and 17 parts of polyethylene glycol distearate (the molecular weight of the ethylene oxide part is 6000) was added to the heat-melting coloring material layer. When similar printing was carried out using a thermal transfer recording medium, good printing was achieved with increased print density, no film peeling, and little loss of density.

[Effects of the Invention] According to the present invention, it is possible to strengthen the adhesion between the support and the coloring material layer, and to prevent the coloring material layer from peeling off, especially when the applied power is increased or when a surfactant or the like is added. It is possible to obtain a thermal transfer recording medium that can be printed multiple times with good quality without causing the film peeling even when a substance is mixed therein.

[Brief explanation of the drawing]

FIG. 1 is a graph showing the relationship between the number of printings and the optical reflection density in Examples and Comparative Examples, where the horizontal axis is the number of printings and the vertical axis is the optical reflection density.

Claims (1)

[Scope of Claims] 1. A heat-sensitive transfer recording medium having a heat-fusible coloring material layer on a support via an adhesive layer, wherein the adhesive layer comprises at least one compound selected from the following Group A and a compound selected from the following Group B. 1. A thermal transfer recording medium comprising at least one compound. [Group A] Polycarbonate [Group B] Vinyl acetate copolymer Acrylate copolymer