JP3169637B2 - Thermal transfer recording method and intermediate sheet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a thermal head, a laser
The present invention relates to a novel thermal transfer recording method using recording means such as an optical head such as a laser head and a current-carrying head, and an intermediate sheet used in the recording method. More particularly, the present invention relates to a recording method having excellent characteristics for plain paper recording of sublimation type thermal transfer recording and an intermediate sheet used in the recording method.

[0002]

2. Description of the Related Art In thermal transfer recording, a transfer member having a color material layer is superimposed on an image receiving member, and an image is formed on the image receiving member by a direct recording head. Also, after an image is once formed on another intermediate sheet by an arbitrary method including thermal transfer recording, the image on the intermediate sheet is transferred onto the final image receiving member, and the image is formed on the image receiving member. A forming method is known (for example, see JP-A-60-9).
Nos. 2897 and 58-222877, U.S. Pat. 4923848). When the intermediate sheet is used, a release layer may be provided on the base material of the intermediate sheet so that the image receiving layer on the intermediate sheet is easily transferred to the final image receiving member, or the surface of the image receiving member may be provided. Alternatively, it has been proposed to provide an adhesive layer or an adhesive layer on the image receiving layer side of the intermediate sheet.

[0003]

[0005] Among thermal transfer recordings, sublimation type thermal transfer recording can provide image quality close to a photograph, but in order to obtain this excellent image quality and recording density, a dyeing layer on which a dye is dyed is required. When the special paper that is formed is required and it is recorded directly on ordinary recording paper such as plain paper, such an image quality and recording can be obtained because the surface of the ordinary recording paper is rough and there is no dyeing layer. No concentration can be obtained. When recording is directly performed from the transfer body to the dyeing layer of the image receiving body provided with the dyeing layer without an intermediate sheet, the dyeing layer is not transferred to the color material layer side during thermal transfer recording. Normally, the image receiving body has a structure in which an anchor coat layer is provided on a base material and a dyeing layer is formed on the anchor coat layer.

[0004] A conventionally known method of forming an image on another intermediate sheet, and then transferring the image on the intermediate sheet to a final image receiving member to form an image on the image receiving member is sublimated. There are many problems when applied to thermal transfer recording.

That is, when an intermediate sheet is interposed, an image must be formed on the dyeing layer on the intermediate sheet as a first step. At this time, thermal transfer recording is performed in a state in which the transfer member having the color material layer and the intermediate sheet are pressed between the recording head and the platen. Among thermal transfer recordings, sublimation thermal transfer recording is compared with fusion thermal transfer recording. Thus, several times as much heat energy is required, and the dyed layer must be held on the intermediate sheet side even after recording under such high energy recording conditions. Further, since sublimation type thermal transfer recording is characterized by high-quality full-color recording, in general, the recording material having at least three primary colors is often superimposed three times on the dyed layer. Even after recording under the thermal recording condition of (black recording), the dyed layer must be kept on the intermediate sheet side. On the other hand, in the next second stage, the dyeing layer and the like must be transferred onto the image receiving member under the condition that the intermediate sheet and the image receiving member are being pressed or hot pressed. That is, there is a demand for a property that satisfies the two characteristics that the dyeing layer is not transferred to the color material layer side at first but is transferred to the image receiving body side for the second time. In particular, in the case of sublimation type thermal transfer recording, if materials having high heat resistance are used for both the color material layer material and the dyeing layer material, the recording sensitivity is greatly reduced, and a material having high heat resistance cannot be used. During the thermal transfer recording between the transfer body at the stage and the intermediate sheet, there is a problem that the dyeing layer and the coloring material layer and / or between the dyeing layer and the intermediate sheet base material are easily thermally fused. .

Further, when a conventionally proposed saturated polyester resin is used for the dyeing layer, it can easily be combined with the polyester film when directly provided on a polyester film which is usually used as a base material of an intermediate sheet. Therefore, there is a problem that the dyeing layer cannot be transferred to the image receiving body.

In the case where a release layer is provided on the base material of the intermediate sheet, the dyeing layer conventionally proposed at the time of thermal transfer recording with a transfer member has insufficient release properties from the color material layer. Therefore, there is a problem that the dyeing layer is easily transferred to the color material layer side by heat and the dyeing layer is easily peeled off. Therefore, the color material layer and / or the dyeing layer are required to have excellent releasability.

Further, an adhesive layer is provided on the dyeing layer to make it easy to adhere to the image receiving body, or an adhesive layer is provided between the base material of the intermediate sheet and the dyeing layer so that the dyeing layer does not transfer to the color material layer side. In the case of an intermediate sheet having a structure in which an adhesive layer is provided in the vicinity of a dyeing layer, for example, a dye image recorded on the dyeing layer is formed on the adhesive layer because the adhesive layer is a heat-softening material at room temperature. There is a bleeding problem. In the case where an adhesive layer is provided, the adhesive layer easily sticks to anything, which poses a complicated problem in handling when mechanically treated.

SUMMARY OF THE INVENTION In view of the above problems, the present invention is excellent in heat-sealing prevention properties between a transfer member and an intermediate sheet and / or regardless of the presence or absence of a release layer of the intermediate sheet. The present invention provides a thermal transfer recording method capable of high quality image recording of sublimation type thermal transfer recording on an arbitrary image receiving member, and having a high bleed resistance characteristic of a recorded image and easy handling, and an intermediate sheet used in the recording method. Is what you do.

[0010]

In order to solve the above-mentioned problems, a thermal transfer recording method of the present invention comprises a method of bonding a color material on a substrate A.
A transfer member having a coloring material layer formed of a wood, intermediate sheet having a dyeing layer on a base material B - and bets, Te combined odors of the image receptor,
Intermediate color material layer surface of the transfer member The first sheet - to form a sublimation type thermal transfer image on the dyeing layer of the bets, - intermediate sheet by preparative dyeing layer surface and the recording head from the substrate A side of the transfer member superposing Next, the intermediate sheet and the image receiving member are overlapped with the dyeing layer surface having the recorded image facing the image receiving member, and the dyeing layer having the recorded image is heated and / or pressed to form a base material B of the intermediate sheet. Heat transfer to form an image on the image receptor by transferring
In the copying and recording method, the binder is an acrylic resin,
Tylene resin, urethane resin, polyester resin,
Vinyl acetate resin, amide resin, cellulose resin,
Vinyl chloride resin, chlorinated resin and polycarbonate
At least one selected from the group consisting of
At least one kind of binder has a glass transition point of 40 ° C to 150 ° C.
° C and the dyeing layer is at least polyvinyl alcohol.
Formed using luacetar (claim 1),
Further, a color material layer composed of a color material and a binder is provided on the base material A.
A transfer member, an intermediate sheet having a dyeing layer on the base material B, and a receiving member.
In combination with the image body, first, the color material layer surface and
The transfer sheet is overlapped with the dyed layer surface of the intermediate sheet.
Sublimation thermal transfer to the dyed layer of the intermediate sheet by the recording head
An image is formed, and then the intermediate sheet and the receiver are recorded.
The dyeing layer surface having an image is superimposed on the image receiver side,
A dyeing layer having a recorded image by heat and / or pressure
The image is transferred from the base material B of the intermediate sheet onto the image receiving member.
In the thermal transfer recording method for forming an image on a body,
The material is at least polyvinyl acetal,
The adhesion layer is at least polyvinyl acetal and a fluorine material
(Claim 2), and an intermediate sheet
Is sequentially laminated on the base material B with a polymer material layer and a dyeing layer.
Wherein the laminate is transferred to an image receiving body.
The thermal transfer recording method according to claim 1 (claim 3),
The sheet is sequentially laminated on the base material B with the polymer material layer and the dyeing layer.
Having a layered product, wherein the laminate is transferred to an image receiving body.
The thermal transfer recording method of claim 2, wherein the (請 Motomeko 4), also
A transfer member having a color material layer on a substrate A, and a release layer on a substrate B
An intermediate sheet having at least a dyeing layer through
In combination with the body, the dyeing layer is at least
It is formed using nil acetal,
Color material layer surface and intermediate sheet dyeing layer surface
Dyeing layer of intermediate sheet from substrate A side of body by recording head
A sublimation type heat transfer image is formed in
The dyeing layer surface having the recorded image with the image body is on the image receiving side.
At least by heat and / or pressure
The dyeing layer is image-received from the release layer surface on the base material B of the intermediate sheet.
Forming an image on the image receiving body by transferring the image onto the image receiving body.
5) a transfer member having a color material layer on a substrate A;
At least a polymer material layer and a dyeing layer with a release layer on top
Combination of an intermediate sheet having a sequential laminate of
In the above, the dyeing layer is at least a polyvinyl acetate
The transfer material is first formed with the color material layer surface of the transfer body.
The dyeing layer surface of the intermediate sheet is superimposed on the transfer material, and the transfer material is on the substrate A side.
From the recording head to the dyed layer of the intermediate sheet
Forming a shot image and then recording the intermediate sheet and said receiver
The dyeing layer surface having an image is superimposed with the image receiving body side.
And heat and / or pressure to sequentially laminate polymer materials
The material layer and the dyeing layer are separated from the release layer surface on the base material B of the intermediate sheet.
Forming an image on the image receiving member by transferring the image on the image receiving member
(Claim 6) .

The thermal transfer according to claim 1, wherein the intermediate sheet of the present invention has a dyeing layer on the base material B, and the dyeing layer is formed by using at least polyvinyl acetal. An intermediate sheet used in a recording method (Claim 7), further comprising a laminate of a polymer material layer and a dyeing layer on a base material B, wherein the dyeing layer has at least a polyvinyl acetate. An intermediate sheet (claim 8) used in the thermal transfer recording method according to claim 3, which is formed by using a dyeing layer on the base material B via a release layer, 6. The intermediate sheet used in the thermal transfer recording method according to claim 5, wherein the dyeing layer is formed by using at least polyvinyl acetal, and a release layer on the base material B. A sequential lamination of a polymer material layer and a dyeing layer through the dyeing layer, wherein the dyeing layer is formed using at least polyvinyl acetal. Intermediate sheet used in the thermal transfer recording method according to claim 6, wherein that - a preparative (claim 10).

[0012]

The polyvinyl acetal has a non-polar group such as hydrogen or an alkyl group more than a methyl group at the terminal of the acetal structure, and a hydroxyl group in a molecule which is thought to contribute to adhesiveness. It is considered that the acetal having a larger three-dimensional structure contributes to the heat-sealing-preventing property by the molecular structural three-dimensional effect that the surface is easily controlled. Therefore, the longer the alkyl group, such as propion acetalized polyvinyl alcohol or polyvinyl butyral, the better the heat-sealing prevention properties.
Further, the higher the degree of acetalization was, the better the result that the property of preventing heat fusion was increased. Further, the longer the alkyl group and the greater the degree of acetalization, the lower the glass transition point, and therefore the higher the recording sensitivity. When polyvinyl acetal is used for the dyeing layer because it has the above characteristics, it is difficult to thermally fuse to the color material layer, and
Shows high recording sensitivity.

Further, since polyvinyl acetal has much lower adhesiveness to a polyester film than a saturated polyester resin, it is easily peeled off from the polyester film. Further, at the time of thermal recording with the transfer body, the polyvinyl acetal is in a thermally softened state at or above the glass transition point,
In this heat-softened state, similarly, it is considered that the polyvinyl acetal is held on the polyester film side because the adhesiveness to the color material layer in the heat-softened state is sufficiently small. When an image is recorded on the polyvinyl acetal dyeing layer as described above, the softening point of the polyvinyl acetal is higher than that of polyvinyl acetal containing no dye because the polyvinyl acetal contains a dye. Decrease. Therefore, when the dyeing layer is subsequently transferred to the image receiving body, the dyeing layer is considered to be more easily transferred and adhered to the image receiving body. If the dyeing layer is formed of polyvinyl acetal for the above reasons, it is difficult to thermally fuse the dyeing layer with the coloring material layer even when the dyeing layer is in a heat-softened state during recording with a transfer body, so that the intermediate sheet is not used. In the case where the dyeing layer is transferred onto the image receiving member, the dyeing layer is easily peeled off from the intermediate sheet substrate B and transferred onto the image receiving member. Further, the dyeing layer made of polyvinyl acetal does not require a pressure-sensitive adhesive layer near the dyeing layer to make it easy to adhere to the image receiving body, so that problems such as bleeding of a dye image do not occur.

[0014]

FIG. 1 is a schematic diagram showing the principle of a recording method as an embodiment of the recording method of the present invention. FIG. 1 shows a schematic diagram of the recording principle.
The present invention is not limited to the configuration of the image receiving body, the traveling system, the recording head, the platen, the position and the number of each roll, and the like according to FIG.

In FIG. 1, a base material B is used as an intermediate sheet.
An intermediate sheet having a dyeing layer thereon is shown as a typical example.

Referring to FIG. The transfer member 1 and the intermediate sheet 2 are placed between the recording head 4 and the platen 5 under appropriate pressure, and the color material layer 9 of the transfer member and the dyeing layer 1 of the intermediate sheet
An image is recorded on the dyeing layer 11 by the recording head 4 from the side of the base material A8 of the sandwiched transfer member so that the one surface is overlapped. In this case, traveling recording may be performed at the same speed between the transfer body and the intermediate sheet, or traveling recording at a so-called relative speed where there is a speed difference between each other.

When a single recording head is used to record the second color, the intermediate sheet is rewound, and then the second color (the second transfer material having a plurality of color material layers) is formed on the dyed layer on which the first color is recorded. (Using the color material layer of the color). Hereinafter, the third color or more can be recorded in the same manner. When a plurality of recording heads are used, each color can be shared and recorded by each head by a conventionally known method or the like, so that the recording speed is improved.

The recording head can form an image on the dyed layer of the intermediate sheet by sublimating or diffusing the coloring material of the coloring material layer of the transfer body using, for example, a thermal head, a current-carrying head, an optical head or the like. There is no particular limitation as long as it is a recording head.

Next, the intermediate sheet having a dyed image and the image receiving member 3 are combined, and heat and / or pressure is applied by applying heat and / or pressure in a state where the dyeing layer surface and the image receiving surface of the intermediate sheet are overlapped so as to face each other. The dyeing layer 11 of the sheet is transferred onto the image receiving body 3 away from the base material B10 of the intermediate sheet, and an image is formed on the image receiving body. As a matter of course, the position of the recording head, platen, heating roll 6 or heating roll 7 or the like can be configured to be variable according to the moving state of the transfer member, intermediate sheet or image receiving member. In FIG. 1, the running system between the platen 5 and the heating roll 7 and the like are omitted, but various rolls such as a pinch roll and an intermediate sheet running adjusting device are interposed. Is also good.

A method of applying heat and / or pressure is, for example, to pass the image receiving body and the intermediate sheet between media whose at least one of them is heated and under appropriate pressing, or between media having high pressing force. It can be obtained by: Alternatively, a light source having large radiant heat can be used. In FIG. 1, two heating rolls (6, 7 respectively) are used as an example of a medium.
You are using As the heating roll, for example, rubber (rubber coating) such as silicone rubber, fluorine rubber, urethane rubber, etc.
Rolls, plastic rolls, metal rolls, Teflon rolls and the like are useful. The method of applying heat and / or pressure is not particularly limited as long as it has an effect of transferring the dyed layer of the intermediate sheet onto the image receiving member, but a preferable method is that at least one of the rolls is heated. Two rows under appropriate pressure (eg, spring or air pressure)
Is used. For example, a combination of an elastic roll such as silicone rubber and a metal roll, or an elastic roll.
There is a combination of a roll with an elastic roll. Further, by using a thermal recording head such as a thermal head or a current-carrying head as one of the media, only a necessary portion of the transfer-receiving layer (for example, only an area including a recording image of the dyed layer) is formed on the image receiving body. Can be transferred. Although the heating temperature is not particularly limited, it is usually used in the range of normal temperature to 300 ° C. Although the pressure is not particularly limited, it is usually used at 10 ⁸ Pa or less.

The transfer of the dyeing layer 11 onto the image receiving body 3 is performed by applying heat and / or pressure to the dyeing layer 1 on the surface of the image receiving body such as paper.
1 is performed by fusing, filling between paper fibers, or softening and bonding. The transfer takes place, for example, immediately after the intermediate heating roll (6 or 7 respectively) in FIG.
Heating the door of the substrate B10 is peeled from the color developing layer 11 is transferred, or, as in Figure 1 (b) - After cooling over time after passing between Le (e.g., further Russia - le 40 and B - Le 41 (After passing through the gap).

For example, when an image is formed on a dyeing layer using a plurality of color material layers having different color materials such as a cyan color material layer, a magenta color material layer, and a yellow color material layer, A color image is formed by a plurality of coloring material layers on one coloring layer, or each coloring layer (for example, a coloring layer is separately provided on the base material B10) corresponding to the coloring material layer of each color. ), An image of each color may be formed. In particular, in the latter case, a plurality of color or full-color images can be formed on the image receiving member 2 by superimposing and transferring the dyeing layers of each color in the image receiving member 2 transfer. Further, an intermediate sheet is provided on the base material B with a dyeing layer and other layers (for example, a polymer material layer at different positions on the base material,
An ultraviolet absorber layer or an overcoat layer), a dyeing layer on which an image is not formed on a dyeing layer on which an image is formed, and an ultraviolet ray on a dyeing layer on which an image is formed. Various layers can be superimposed and transferred, such as further superimposing a two-layer repeating unit in which a polymer material layer is superimposed on an absorbent layer or a dyeing layer on which a monochrome image is formed. or,
When the transfer body has a pigment ink layer as another layer, the pigment ink layer is recorded on a base material or a dyeing layer of the transfer body by a recording head, and then transferred onto the image receptor or transferred onto the image receptor. The image can be superimposedly transferred onto the transfer dyeing layer, and a sublimation type image and a fusion type image can be formed on the image receiving body.

In the above description, the intermediate sheet having the structure in which the dyeing layer is provided on the base material B has been described. However, the intermediate sheet having the structure in which the polymer material layer and the dyeing layer are sequentially laminated on the base material B has been described. −
Or an intermediate sheet having a laminated structure of a release layer and a dyeing layer on the base material B, or a laminated structure of a release layer, a polymer material layer, and a dyeing layer on the base material B Intermediate sheet having
When the recording method is used, the recording method is basically the same. However, in the case of an intermediate sheet having a sequentially laminated structure of a polymer material layer and a dyeing layer on the base material B, the transfer to the image receiving member starts from the surface of the base material B of the intermediate sheet. The layered product of the layer and the dyeing layer is peeled off, and the polymer material layer and the dyeing layer are transferred onto the image receiving body, and the base material B has a sequential lamination structure of the release layer and the dyeing layer. In the case of an intermediate sheet, the dyeing layer is peeled off from the interface between the release layer and the dyeing layer of the intermediate sheet, and the dyeing layer is transferred onto the image receiving body. In the case of an intermediate sheet having a laminated structure of a polymer material layer and a dyeing layer in order, a polymer material layer and a dyeing layer are formed from the interface between the release layer and the polymer material layer of the intermediate sheet. Are sequentially peeled off, and the polymer material layer and the dyeing layer are transferred onto the image receiving body.

Although not shown in FIG. 1, the transfer member may be configured as a cassette in which the transfer member is wound around an unwinding roll and a take-up roll. Further, a transfer body having a plurality of color material layers on a substrate A, such as a cyan color material layer, a magenta color material layer, and a yellow color material layer (for example, a black color material layer), and a plurality of dyes. An intermediate sheet having a deposition layer (or various other layers) can also be used as described above.

FIG. 2 is a schematic sectional view of a transfer member used in the recording method of the present invention as one embodiment. The transfer body is composed of at least a base material A23 and a color material layer 24.
The substrate A23 is not particularly limited. For example, there are various polymer films, polymer films surface-treated by coating or the like, various conductive films, and the like. Examples of various polymer films include polyolefin-based, polyamide-based, polyester-based, polyimide-based, polyether-based, cellulose-based, polyparabanic acid-based, polyoxadiazol-based, polystyrene-based, and fluorine-based films. . Particularly, films such as polyethylene terephthalate, polyethylene naphthalate, aramid, triacetyl cellulose, polyparabanic acid, polysulfone, polypropylene, cellophane, moisture-proof cellophane, and polyethylene are useful. When the substrate A has a heat-resistant layer, a lubricating layer (or a lubricating conductive layer) or a lubricating heat-resistant layer (or a lubricating heat-resistant conductive layer) on at least one surface thereof,
This is particularly desirable because of its improved heat resistance or good running stability with the recording head. A polymer film or a conductive film provided with an adhesive layer (anchor coat layer) on the surface where the polymer film or the conductive film is in contact with the color material layer so that the color material layer does not peel off from the film during recording. It is desirable to use it as the base material A. Examples of various conductive films include, for example, polymer films containing various conductive particles such as carbon black and metal powder, polymer films having a conductive coating layer formed thereon, and polymer films having a conductive vapor-deposited layer. Useful.

The color material layer comprises at least a color material and a binder. The coloring material is not particularly limited. For example, disperse dyes, basic dyes, color formers and the like are useful. As the binder, various polymer materials and the like can be used. For example, there are acrylic resins, styrene resins, urethane resins, polyester resins, polyvinyl acetal resins, vinyl acetate resins, chlorinated resins, amide resins, cellulose resins, and the like. Examples of the cellulose resin include methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, carboxymethyl cellulose, nitrocellulose, cellulose acetate and the like. In particular, acrylonitrile-styrene copolymer resin, polystyrene, styrene-acryl copolymer resin, saturated polyester, polyester urethane, vinyl chloride resin, chlorinated vinyl chloride resin, vinyl chloride-vinyl acetate copolymer resin (further vinyl alcohol, maleic acid, Other components may be copolymerized), vinyl chloride-acrylate copolymer resin (including multi-component copolymer resin using multiple acrylates), vinyl acetate resin, chlorinated rubber, chlorinated polypropylene When at least one selected from polycarbonate or cellulose resin is used as a binder,
It has good recording sensitivity and / or has excellent heat-sealing prevention properties for the dyed layer, which is good. The copolymer resin is
A copolymer resin composed of three or more components may be used. In particular,
Polyvinyl formal, acetoacetated polyvinyl alcohol, propion acetalized polyvinyl alcohol, are applied to both the binder of the color material layer and the dyed layer of the intermediate sheet.
When polyvinyl acetal such as polyvinyl butyral is used, the recording sensitivity is high and it is particularly useful. It is particularly desirable that the glass transition point of the polymer material is in the range of 40 ° C. to 150 ° C., or the average degree of polymerization of the polymer material is in the range of 200 to 2700.

In the case where the coloring material layer is formed using at least one selected from a fluorine-containing moisture-curable resin or a siloxane-containing moisture-curable resin, at least a coloring material and a binder, Since the properties of the moisture-curable resin or the siloxane-containing moisture-curable resin as a release agent are very excellent, the thermal fusion phenomenon does not occur during thermal transfer recording in the combination of the transfer body and the intermediate sheet. Can be recorded. The color material layer is at least one selected from a fluorine-containing moisture-curable resin and a siloxane-containing moisture-curable resin.
Species and polyvinyl butyral, acetoacetated polyvinyl alcohol, polyvinyl formal, propion acetalized polyvinyl alcohol, acrylonitrile
Styrene copolymer resin, polystyrene, styrene-acryl copolymer resin, saturated polyester, polyester urethane, vinyl chloride resin, chlorinated vinyl chloride resin, vinyl chloride-vinyl acetate copolymer resin, vinyl chloride-acrylate copolymer resin, acetic acid Particularly good is the case where at least one kind of binder selected from vinyl resin, chlorinated rubber, chlorinated polypropylene, polycarbonate or cellulose resin and at least one coloring material are used. is there.

As a fluorine-containing moisture-curable resin or a siloxane-containing moisture-curable resin, for example, Japanese Patent Application No. 63-14 / 1988.
The moisture-curable resin having a hydrolyzable silyl group or the moisture-curable resin having a hydrolyzable isocyanate group described in JP-A-4241 can be used as a resin in which fluorine or silicone is introduced.

As the fluorine-containing moisture-curable resin, for example, a fluorine-containing polymer having a hydrolyzable silyl group, for example,
There is a moisture-curable resin described in JP-A-62-558, and a fluorine-containing acrylic silicone resin is particularly useful.
Further, a fluorine-containing polyurethane resin having a hydrolyzable isocyanate group at a molecular terminal or a side chain is also useful. Examples of the siloxane-containing moisture-curable resin include, for example, a siloxane-containing vinyl polymer having a hydrolyzable silyl group, and a siloxane-containing acrylic silicone resin is particularly useful.
Further, a siloxane-containing polyurethane resin having a hydrolyzable isocyanate group at a molecular terminal or a side chain is also useful. A fluorine-containing acrylic silicone resin, a siloxane-containing acrylic silicone resin, or the like may be modified with a urethane resin or the like. As a fluorine-containing acrylic silicone resin, for example, a fluorine-containing acrylic silicone resin solution (F-2A, Sanyo Chemical Industries, Ltd.), as a siloxane-containing acrylic silicone resin, for example, a siloxane-containing acrylic silicone resin solution (F-6A, Sanyo Chemical Industries, Ltd.) And a siloxane-containing moisture-curable resin having a hydrolyzable isocyanate group, for example, a siloxane-containing moisture-curable resin solution (SAT-300P, Shinko Giken Co., Ltd.). In the color material layer, a reaction accelerator of a moisture-curable resin may be used if necessary. Reaction accelerators such as titanates, amines, organotin compounds, acidic compounds, and the like, for example,
Metal salts of carboxylic acids such as alkyl titanates, tin octylate, dibutyltin dilaurate, dibutyltin maleate; amine salts such as dibutylamine-2-hexoate;
Other catalysts described in JP-A-58-19361 can be used. The addition amount of the reaction accelerator is usually 0.001 to 100% by weight based on the resin.

When the moisture-curable resin is used in the form of a paint or the like, a storage stabilizer may be added, if necessary, for example, as disclosed in JP-A-60-51724 and JP-A-57-147.
There is a stabilizer described in, for example, JP-A-511-511.

The color material layer may have a multilayer structure. or,
A lubricating layer and various coating layers may be provided on the color material layer. Further, in order to prevent thermal fusion during recording with the dyeing layer on the color material layer or the upper layer of the multilayer structure, a fluorine-containing moisture-curable resin, a siloxane-containing moisture-curable resin, or various silicone resins are used.
Or various additives such as fluorine-based materials, antistatic agents and the like.

FIGS. 3 to 6 are schematic cross-sectional views of an intermediate sheet as each embodiment used in the recording method of the present invention or an intermediate sheet as each embodiment of the present invention.

The intermediate sheet comprises at least a substrate B25 and a dyeing layer 26. Alternatively, the intermediate sheet comprises at least a base material B25, a polymer material layer 28 and a dyeing layer 26 as shown in FIG. Alternatively, the intermediate sheet comprises at least a base material B25, a release layer 27 and a dyeing layer 26 as shown in FIG. Alternatively, the intermediate sheet is composed of at least a base material B25, a release layer 27, a polymer material layer 28 and a dyeing layer 26 as shown in FIG. Intermediate sheet
As long as the structure has at least the base material B and the dyeing layer, various structures other than those described above may be used, and any structure is included in the present invention. In addition, constituent materials of each layer will be described below, but the present invention is not limited to only the combinations of the layers described below.

The base material B25 is not particularly limited. Paper with a smooth surface can be used, but particularly useful is
For example, various polymer films, polymer films surface-treated by coating or the like, various conductive films, and the like.

As the various polymer films, for example, the various films described in the section of the transfer member are useful. The thickness of the polymer film is usually about 2 μm to 100 μm, and particularly preferably 2 to 30 μm. Various polymer films are
A heat-resistant layer for reinforcing heat resistance such as thermal deformation of the polymer film, an antistatic layer, or, if necessary, various coating layers may be provided. As the various conductive films used for the base material B25, the various conductive films described for the base material A of the transfer body can be used.

The dyeing layer 26 is formed using at least polyvinyl acetal. The dyeing layer 26 may contain a developer such as an electron-accepting substance, if necessary (for example, when a leuco dye or the like is used for the colorant layer of the transfer body).
Examples of the electron-accepting substance include phenol compounds such as bisphenol A, carboxylic compounds, silica, and activated clay.

Polyvinyl acetal is a resin obtained by reacting polyvinyl alcohol with various aldehydes such as formaldehyde, acetaldehyde, propionaldehyde or butyraldehyde. For example, polyvinyl formal, acetoacetated polyvinyl alcohol, propion acetalized polyvinyl alcohol, polyvinyl butyral and the like are particularly useful.

Since polyvinyl acetal has a polar group called an acetal structure, it exhibits excellent dyeing properties to disperse dyes and the like. Also, at the terminal of the acetal structure, there is a non-polar group such as hydrogen or an alkyl group more than a methyl group,
It is also considered that the acetal structure contributes to the heat-sealing prevention property by a molecular steric effect that the surface is more easily controlled than the hydroxyl group that contributes to the adhesiveness in the polyvinyl acetal. In particular, the longer the alkyl group, such as propion-acetalized polyvinyl alcohol or polyvinyl butyral, the better the heat-sealing prevention properties. Also, the larger the degree of acetalization, the greater the thermal fusion prevention property. In addition, the longer the alkyl group and the greater the degree of acetalization, the lower the glass transition point tends to be.
The recording sensitivity increases. Due to the above properties, when polyvinyl acetal is used for the dyeing layer, it does not easily fuse to the colorant layer and exhibits high recording sensitivity.

Further, polyvinyl acetal has a very low adhesiveness to the polyester film, and thus easily peels off from the polyester film. However, during thermal recording with the transfer material, the polyvinyl acetal has a glass transition point or higher. In this heat-softened state, it is considered that the polyvinyl acetal is held on the polyester film side because the adhesiveness to the color material layer in the heat-softened state is sufficiently small. When an image is recorded on the polyvinyl acetal dyeing layer as described above, the softening point of the polyvinyl acetal is higher than that of polyvinyl acetal containing no dye because the polyvinyl acetal contains a dye. Decrease. Therefore, when the dyeing layer is subsequently transferred to the image receiving body, the dyeing layer is considered to be more easily transferred and adhered to the image receiving body. If the dyeing layer is formed of polyvinyl acetal for the above reasons, it is difficult to thermally fuse the dyeing layer with the coloring material layer even when the dyeing layer is in a heat-softened state during recording with a transfer body, so that the intermediate sheet is not used. In the case where the dyeing layer is transferred onto the image receiving member, the base sheet B of the intermediate sheet is used.
And easily transferred to the image receiving member. The transfer to the image receiving body is more easily performed especially when the image receiving body is plain paper or the like, because the dyeing layer resin is entangled with the paper fibers.

From the viewpoint of recording sensitivity or transfer characteristics to an image receiving member, polyvinyl acetal obtained from a polyvinyl alcohol having an average degree of polymerization of 2700 or less is preferable as the polyvinyl acetal. In particular, the flow softening point is 2
50 ° C. or less is desirable. The flow softening point (or outflow starting temperature) is a value measured by a flow tester (heating rate: 6 ° C./min, extrusion pressure: 9.8 × 10 ⁶ Pa , die: φ1 mm × 10 mm).

For example, when the image receiving body is paper, the average degree of polymerization is 1500 in order to impregnate the dyeing layer resin into the fibers of the paper.
Polyvinyl acetals obtained from the following polyvinyl alcohols having a small molecular weight or having a softening point of 20
Polyvinyl acetal at 0 ° C. or lower is particularly desirable. Since the higher the degree of acetalization, the higher the thermal fusion prevention property with respect to the color material layer, the degree of acetalization is desirably 50 mol% or more. In particular, when the degree of butyralization of polyvinyl acetal is 50 mol% or more, it is preferable because the heat-sealing prevention property and the recording sensitivity to the color material layer are particularly excellent. As polyvinyl butyral, for example, a product of Sekisui Chemical Co., Ltd., BL-1 (butyral
Degree of hydrolysis = 63 ± 3 mol%, flow softening point, 105 ° C.), B
L-2 (degree of butyralization = 63 ± 3 mol%, flow softening point, 120 ° C.), BH-S (degree of butyralization = 70 mol%)
Above, flow softening point, 160 ° C.), BM-S (butyrate)
Degree = 70 mol% or more, flow softening point, 150 ° C.), B
L-S (butyralization degree = 70 mol% or more, flow softening point, 110 ° C.), BH-3 (butyralization degree = 65 ± 3)
mol%, flow softening point, 205 ° C), BM-2 (butyral
Degree of conversion = 68 ± 3 mol%, flow softening point, 140 ° C.), B
M-1 (degree of butyralization = 65 ± 3 mol%, flow softening point, 130 ° C.), BM-5 (degree of butyralization = 65 ± 3)
mol%, flow softening point, 160 ° C.) are particularly useful.
The polyvinyl acetal may react with a phenol resin, an epoxy resin, a melamine resin, an isocyanate compound or a dialdehyde compound to form a crosslinked structure. Polyvinyl acetal does not exhibit tackiness at room temperature, so that it has good bleed resistance of recorded images and is easy to handle. When the dyeing layer 26 is formed by using at least one selected from a fluorine-containing moisture-curable resin or a siloxane-containing moisture-curable resin and at least polyvinyl acetal, the thermal fusion to the coloring material layer is performed. The anti-adhesion properties are particularly excellent. The description of the fluorine-containing moisture-curable resin and the siloxane-containing moisture-curable resin is omitted since it has already been given in the section of the transfer member. Since the fluorine-containing moisture-curable resin or the siloxane-containing moisture-curable resin has excellent heat-fusion preventing properties, when it is contained in the dyeing layer, the coloring material is used during thermal transfer recording with the coloring material layer. There is no thermal fusion with the layer. In particular, polyvinyl acetal excellent in heat fusion prevention properties
The dyeing layer formed by the combination of a fluorinated moisture-curable resin and / or a siloxane-containing moisture-curable resin having excellent heat-sealing prevention properties exhibits excellent heat-sealing prevention properties to the colorant layer. . The dyeing layer may contain various resins. For example, there are acrylic resins, urethane resins, polyester resins, polyvinyl acetal resins, vinyl acetate resins, chlorinated resins, styrene resins, cellulose resins and the like. Specific examples include acrylonitrile-styrene copolymer resin, polystyrene, styrene-acryl copolymer resin, saturated polyester, polyester urethane, vinyl chloride resin, chlorinated vinyl chloride resin, vinyl chloride-vinyl acetate copolymer resin, vinyl chloride-acrylic ester Copolymer resin, chlorinated rubber, chlorinated polypropylene, polycarbonate, vinyl acetate resin, and the like. The polymer material layer 28 is formed using at least a polymer material. The polymer substance is not particularly limited. As the polymer substance, for example, various thermoplastic resins, various curable resins by heat, light, electron beam, or the like can be used. For example, various resins such as acrylic, urethane, amide, ester, cellulose and styrene resins can be used. In particular, the polymer material layer is formed by using at least one selected from polyvinyl alcohol, polyvinyl alcohol derivative, cellulose derivative, modified starch, starch derivative, chlorinated resin and polycarbonate. If so, aromatic solvents such as toluene,
It excels in solvent resistance at the time of application to a dyeing layer forming paint using a ketone solvent such as 2-butanone, and does not have very strong adhesiveness to a polyester film which is a typical base material. It has features that make it easy to do. Examples of the polyvinyl alcohol derivative include various polyvinyl acetals. As the cellulose derivatives, for example, methyl cellulose, ethyl cellulose
, Hydroxyethyl cellulose, carboxymethyl cellulose, nitrocellulose or cellulose acetate. Examples of the modified starch include oxidized starch and enzyme-treated starch. Examples of the starch derivative include hydroxyethyl starch, carboxymethyl starch and cyanoethylated starch. As the chlorinated resin, for example, chlorinated polyethylene,
There are chlorinated polypropylene and chlorinated rubber. Since these resins do not exhibit tackiness at room temperature, even if they are adjacent to the dyeing layer, the dyeing layer has good bleed resistance to the dye in the recorded image and is easy to handle. It is desirable that the polymer substance has a glass transition point of 50 ° C. or higher from the viewpoint of the storage reliability of the recorded image. For example, when paper is used as the image receiving member, the average degree of polymerization of the high molecular substance is 200 to 2 for the purpose of impregnating the fiber of the paper with the high molecular substance.
700 or the flow softening point is 80-250 ° C
Is desirable. In particular, the average degree of polymerization is 1
A polymer substance having a softening point of 500 or less or 200 ° C. or less is particularly desirable.

In the case where the polymer material layer 28 is formed using at least one polymer selected from a fluorine-containing moisture-curable resin or a siloxane-containing moisture-curable resin and a polymer, This is useful because it is easy to easily control the release property of the polymer material layer from the polymer.

The release layer 27 is not particularly limited. For example, when the release layer is formed by using at least one selected from a fluorine-containing moisture-curable resin and a siloxane-containing moisture-curable resin, particularly excellent release characteristics are exhibited. Alternatively, the release layer may be formed using at least one selected from a fluorine-containing moisture-curable resin or a siloxane-containing moisture-curable resin and a polymer material. Alternatively, the release layer may be formed of the following various release agents or various release agents and a polymer substance. For example, silicone-based release agents include various silicone oils having excellent stability represented by dimethyl silicone oil, phenyl silicone oil, fluorine silicone oil, SiH modified, silanol modified, alkoxy modified. , Epoxy-modified, amino-modified, carboxyl-modified, alcohol-modified, mercapto-modified, vinyl-modified, polyester-modified, fluorine-modified, higher fatty acid-modified, carnauba-modified, amide-modified, alkylallyl-modified, etc. Various silicone rubbers such as silicone oil, heat vulcanization type, room temperature curing type, liquid type, etc., various silicone resins such as condensation reaction type, addition reaction type, peroxide curing reaction type, various silicone emulsions, various types There are silicone resin powder, silicone rubber powder and the like.

Various fluorine resins such as polytetrafluoroethylene, tetrafluoroethylene-perfluoroalkylvinylether copolymer, and the like,
Various fluorine rubbers such as vinylidene fluoride-hexafluoropropylene rubber, various fluorine surfactants, carbon fluoride, various fluorine rubber latex, and fluorine-containing resins are useful. In addition, release agents such as various fatty acid esters, various waxes and various oils are useful. Release layer 27
In the case where a polymer material is used, various resins and the like described in the polymer material layer 28 can be used. If necessary, it may be used together with the various release agents described above. An adhesive layer may be provided between the substrate and the release layer. Various antistatic agents and the like may be added to the dyeing layer, the polymer material layer, or the release layer.

When the dyeing layer 26 or the high-molecular substance layer and the dyeing layer are transferred to an image receiving body such as paper, OHP film, etc., the surface thereof may be required to have writeability. For example, the more the dyeing layer 26 (or the polymer material layer 28 and the dyeing layer 26) is sufficiently pressed into the space between the fibers of the paper, the better the writing performance is. Also, in order to give the dyeing layer 26 good writing properties,
Various fine particles such as synthetic amorphous silica, titanium oxide, calcium carbonate, and alumina, or transparent fine particles may be added. Further, the dyeing layer 26 may be added with an ultraviolet absorber, an antioxidant, a fluorescent agent, or the like in order to improve image light resistance and the like.

Since the polymer material layer 28 is transferred onto the image receiving member, it is desirable that the polymer material layer be transparent. Therefore, a highly transparent polymer substance is desirable. Further, in order to provide the polymer substance layer with good writability, various fine particles such as synthetic amorphous silica, titanium oxide, calcium carbonate, and alumina, or transparent fine particles may be added. Further, in order for the polymer material layer 28 to function as a light-resistant protective layer of the dyeing layer, an ultraviolet absorber, an antioxidant, a fluorescent agent, and the like may be added. In addition, the polymer material layer 28
It may be a polymer material layer which dyes or develops a color in the coloring material layer of the transfer body.

The colorant layer, dyeing layer or polymer layer may contain various release agents alone or in combination. As the various release agents, for example, various release agents such as various silicone-based materials or various fluorine-based materials shown in the above-described release layer 27 may be added.

The image receiving member is made of uncoated paper, coated paper, film,
Sheet, synthetic paper, continuous image receiver or cut image receiver, etc.
In particular, it can be used without being limited to its material, paper quality, form and the like. The image recorded on the dyeing layer of the intermediate sheet is a left-right inverted image (mirror image) of the image on the image receiving member because the dyeing layer is transferred onto the image receiving member and an image is formed on the image receiving member. Becomes Therefore, recording of the intermediate sheet on the dyed layer by the recording head is usually recording of a left-right reversed image, except that the left-right reversal of the image obtained on the image receiving body is not a problem.

As described above, by using the thermal transfer recording method or the intermediate sheet of the present invention, any form of plain paper, transparent film for OHP, bond paper having a large surface roughness, coated paper, coated film, etc. It is easy to handle on recording paper, has excellent bleed resistance, and provides high quality images.
Hereinafter, specific examples will be described.

Example 1 Preparation of Transfer Body A polyethylene terephthalate (hereinafter abbreviated as PET) film having a slippery heat-resistant layer on the lower surface and an anchor coat layer on the upper surface (thickness: 4 μm) The following coating material was applied to the anchor coat layer with a wire bar and dried to a thickness of about 1 μm.
Was formed. Preparation of Intermediate Sheet 4 parts by weight of a polyvinyl butyral resin (BL-S (degree of polymerization: about 350), Sekisui Chemical Co., Ltd.) on a 9 μm thick PET film, a siloxane-containing acrylic silicone resin solution ( F-6A-4, active ingredient 54 wt%, Sanyo Chemical Industry Co., Ltd.) 0.23 parts by weight, di-n-butyltin dilaurate 0.0012 parts by weight, toluene 18 parts by weight, 2-
A coating consisting of 18 parts by weight of butanone was applied and dried with a wire bar, and then heat-treated at 100 ° C. for 30 minutes to form a dyeing layer having a thickness of about 2 μm, thereby producing an intermediate sheet.

Next, the transfer member and the intermediate sheet, which are superposed so that the dyeing layer surface faces the color material layer surface, are sandwiched between a thermal head pressed by about 3 kg and a platen to meet the following recording conditions. Recorded.

Recording speed: 33.3 ms / line Recording pulse width: 2 to 8 ms Maximum recording energy: 6 J / cm ² After recording, when the transfer member is separated from the intermediate sheet, it is transferred to the dyed layer of the intermediate sheet. The gradation pattern was clearly recorded without fusing the body color material layer. Next, in a state where plain paper (high quality paper) is overlaid on the surface of the dyed layer on which the image of the intermediate sheet is recorded, the intermediate sheet and plain paper are placed on a surface rubber-coated metal roll at about 180 ° C. After passing between the metal rolls (pressure between the rolls is about 5 kg), the PET film of the film base material of the intermediate sheet is separated from the plain paper, and the dyed layer on which the image is recorded is transferred onto the plain paper. I was

The transferred image on plain paper obtained as described above was a high quality image having a reflection recording density of 1.6 at a pulse width of 8 ms and uniform dots from low recording density to high recording density. . This recorded image was taken at 60 ° C. and 60% R
No bleeding occurred in the recorded image even after being left for 200 hours under a constant temperature and humidity condition of H.

Example 2 Preparation of Transfer Body The following film was formed on an anchor coat layer of PET film (thickness: 4 μm) having a lubricating heat-resistant layer on the lower surface and an anchor coat layer on the upper surface. The paint was applied with a wire bar and dried to form a color material layer having a thickness of about 1 μm. (Paint) Azo-based disperse dye 2.8 parts by weight Polyvinyl butyral resin (BH-S, Sekisui Chemical Co., Ltd.) 4 parts by weight Amide-modified silicone oil 0.04 parts by weight Toluene 25 parts by weight 2-butanone 25 Parts by weight ・ Preparation of intermediate sheet 4 parts by weight of polyvinyl butyral resin (BL-S), fluorine-containing acrylic silicone resin solution (F-2A, effective ingredient 48 wt%, Sanyo Chemical Co., Ltd.) on a PET film having a thickness of 9 μm Co., Ltd.) 0.83 parts by weight, 0.004 parts by weight of di-n-butyltin dilaurate, 18 parts by weight of toluene and 18 parts by weight of 2-butanone are coated with a wire bar and dried. Heat treatment was performed at 100 ° C. for 30 minutes to form a dyeing layer having a thickness of about 2 μm, thereby producing an intermediate sheet.

An image was recorded on the dyed layer of the intermediate sheet in the same manner as in Example 1 using the transfer body and the intermediate sheet. After the recording, when the transfer member was separated from the intermediate sheet, the tone pattern was clearly recorded without the color material layer of the transfer member being fused to the dyed layer of the intermediate sheet. Next, use plain paper as the image receptor,
This image receiver and the intermediate sheet on which the image was recorded were passed between heating rolls (pressure between rolls: about 50 kg) in the same manner as in Example 1, and then a PET film as a film base material of the intermediate sheet was used. Was released from the plain paper, the dyed layer on which the image was recorded was transferred onto the plain paper. The transferred image on plain paper was a high quality image having a reflection recording density of 1.7 at a pulse width of 8 ms and uniform dots from low recording density to high recording density. No bleeding occurred in the recorded image even after the recorded image was left under a constant temperature and humidity condition of 60 ° C. and 60% RH for 200 hours.

Example 3 Using the transfer body of Example 1 and the intermediate sheet, a gradation image was recorded on the dyed layer of the intermediate sheet in the same manner as in Example 1. Next, a transparent PET sheet for OHP (OHP sheet) was used as the image receiving member, and the image receiving member and the intermediate sheet on which the image was recorded were passed between the heating rolls as in Example 1. Thereafter, when the PET film of the intermediate film base material was separated from the OHP sheet, the dyed layer on which the image was recorded was transferred to the OHP sheet. The image transferred to this OHP sheet has a transmission recording density of 0.88 at a pulse width of 8 ms, and has uniform dots from low recording density to high recording density.
It was a high-quality image with excellent transparency. No bleeding occurred in the recorded image even after the recorded image was left under a constant temperature and humidity condition of 60 ° C. and 60% RH for 200 hours.

Example 4 Using the transfer member of Example 1 and the intermediate sheet, a gradation image was recorded on the dyed layer of the intermediate sheet in the same manner as in Example 1. Next, bond paper (cotton 1
00%) and the intermediate sheet on which the image was recorded and the image receiver.
After passing the PET film between the heating rolls as in Example 1, the PET film of the film base of the intermediate sheet is separated from the bond paper, and the dyed layer on which the image is recorded is transferred onto the bond paper. I was The obtained image had a recording density of 1.58 at a pulse width of 8 ms. The image transferred to paper having poor surface smoothness such as bond paper was also a high quality image having uniform dots from low recording density to high recording density. No bleeding occurred in the recorded image even after the recorded image was left under a constant temperature and humidity condition of 60 ° C. and 60% RH for 200 hours.

Example 5 Preparation of Transfer Body A PET film (thickness: 4 μm) having a lubricating heat-resistant layer on the lower surface and an anchor coat layer on the upper surface was formed as follows. After coating and drying the paint with a wire bar, 60
C. for 1 hour to form a color material layer having a thickness of about 1 .mu.m. (Paint) Azo-based disperse dye 2.8 parts by weight Acrylonitrile-styrene copolymer resin 4 parts by weight Siloxane-containing acrylic silicone resin solution (F-6A, active ingredient 54 wt%, Sanyo Chemical Industries, Ltd.) 0.5 part by weight -N-butyltin dilaurate 0.005 parts by weight Toluene 25 parts by weight 25 parts by weight of 2-butanone-Preparation of intermediate sheet A polyvinyl butyral resin [BM-S (polymerized) was placed on a PET film having a thickness of 9 µm. Degree: about 850), Sekisui Chemical Co., Ltd.] A coating consisting of 4 parts by weight, 18 parts by weight of toluene and 18 parts by weight of 2-butanone is applied with a wire bar and dried to form a dyeing layer having a thickness of about 2 μm. Then, an intermediate sheet was produced.

An image was recorded on the dyed layer of the intermediate sheet in the same manner as in Example 1 using the transfer member and the intermediate sheet. After the recording, when the transfer member was separated from the intermediate sheet, the tone pattern was clearly recorded without the color material layer of the transfer member being fused to the dyed layer of the intermediate sheet. Next, use plain paper as the image receptor,
After passing the image receiver and the intermediate sheet on which the image was recorded through a heating roll (at a temperature of about 200 ° C.) in the same manner as in Example 1, the PET film of the intermediate sheet film base material was usually used. When separated from the paper, the dyed layer on which the image was recorded was transferred to plain paper. The transferred image on plain paper has a pulse width of 8
It was a high quality image having a reflection recording density of 1.5 ms and uniform dots from low recording density to high recording density. No bleeding occurred in the recorded image even after the recorded image was left under a constant temperature and humidity condition of 60 ° C. and 60% RH for 200 hours.

Example 6 A polyvinyl butyral resin [BX-1 (degree of polymerization = about 1700, flow softening point =) was coated on a PET film having a thickness of 6 μm.
(225 ° C.), Sekisui Chemical Co., Ltd.] A coating consisting of 5 parts by weight, 50 parts by weight of toluene and 50 parts by weight of 2-butanone was applied and dried to form a polymer material layer having a thickness of about 1.5 μm. On this polymer material layer, 4 parts by weight of polyvinyl butyral resin (BM-S), 0.24 parts by weight of a fluorinated acrylic silicone resin solution (F-2A), 0.2 g of di-n-butyltin dilaurate. 002 parts by weight, toluene 20 parts by weight,
A coating consisting of 20 parts by weight of 2-butanone is applied with a wire bar, dried and then heat-treated at 100 ° C. for 30 minutes to a thickness of about 1 μm.
Thus, an intermediate sheet was prepared. At the time of forming the dyeing layer, the surface of the lower polymer material layer hardly changed with respect to the solvent of the dyeing layer forming paint, and the upper dyeing layer could be formed uniformly. Using this intermediate sheet and the transfer body of Example 1, a gradation image was recorded on the dyed layer of the intermediate sheet under the same recording conditions as in Example 1. After the recording, when the transfer member was separated from the intermediate sheet, the tone pattern was clearly recorded without the color material layer of the transfer member being fused to the dyed layer of the intermediate sheet. Next, the intermediate sheet on which the image was recorded and the plain paper were superimposed on each other in the same manner as in the first embodiment.
0 ° C) and then PET of the intermediate sheet film base
When the film was separated from the plain paper, the laminate of the dyeing layer and the polymer layer recorded on the plain paper was transferred. The transferred image on plain paper obtained as described above was a high-quality image having a recording density of 1.5 at a pulse width of 8 ms and having uniform dots from low recording density to high recording density. No bleeding occurred in the recorded image even after the recorded image was left under a constant temperature and humidity condition of 60 ° C. and 60% RH for 200 hours.

Example 7 A coating consisting of 5 parts by weight of polyvinyl alcohol [PVA-105, Kuraray Co., Ltd.] and 95 parts by weight of water was applied on a 6 μm-thick PET film and dried to form a film having a thickness of about 2 μm. A polymer material layer was formed. The same dyeing layer as in Example 6 was formed on this polymer material layer to produce an intermediate sheet. At the time of forming the dyeing layer, the solvent resistance of the polymer material layer was good and a uniform dyeing layer could be formed. Next, as a result of following the same recording process as in Example 6, the laminate of the dyed layer and the polymer material layer on which the image was recorded was able to be clearly transferred onto plain paper. The transfer image on plain paper obtained as described above has a pulse width of 8 m.
In s, a high quality image having a recording density of 1.5 and uniform dots from low recording density to high recording density was obtained. This recorded image was subjected to a constant temperature and humidity condition of 60 ° C. and 60% RH for 2 hours.
No bleeding occurred in the recorded image even after leaving for 00 hours.

Example 8 Acetoacetated polyvinyl alcohol (KS-5, degree of polymerization: about 2400, on a PET film having a thickness of 6 μm)
A coating composed of 5 parts by weight of Sekisui Chemical Co., Ltd., 50 parts by weight of toluene and 50 parts by weight of 2-butanone was applied and dried to form a polymer substance layer having a thickness of about 2 μm. The same dyeing layer as in Example 6 was formed on this polymer material layer to form an intermediate seal.
Was made. At the time of forming the dyeing layer, the solvent resistance of the polymer material layer was good and a uniform dyeing layer could be formed. Next, as a result of following the same recording process as in Example 6, the laminate of the dyed layer and the polymer material layer on which the image was recorded was able to be transferred onto plain paper cleanly. The transferred image on plain paper obtained as described above was a high-quality image having a recording density of 1.5 at a pulse width of 8 ms and having uniform dots from low recording density to high recording density. This recorded image is taken at 60 ° C. and 60% RH.
No bleeding occurred in the recorded image even after standing for 200 hours under the condition of constant temperature and humidity.

Example 9 A coating composed of 4 parts by weight of hydroxyethyl cellulose and 96 parts by weight of water was applied on a PET film having a thickness of 6 μm and dried to form a polymer layer having a thickness of about 2 μm. The same dyeing layer as in Example 6 was formed on this polymer material layer to produce an intermediate sheet. At the time of forming the dyeing layer, the solvent resistance of the polymer material layer was good and a uniform dyeing layer could be formed. Next, as a result of following the same recording process as in Example 6, the laminate of the dyed layer and the polymer material layer on which the image was recorded was able to be transferred onto plain paper cleanly. The transferred image on plain paper obtained as described above was a high-quality image having a recording density of 1.5 at a pulse width of 8 ms and having uniform dots from low recording density to high recording density. This recorded image was taken at 60 ° C. and 60% R
No bleeding occurred in the recorded image even after being left for 200 hours under a constant temperature and humidity condition of H.

Example 10 4 parts by weight of carboxymethyl starch and 0.1% of polyether-modified silicone oil were placed on a PET film having a thickness of 6 μm.
A coating consisting of 02 parts by weight and 96 parts by weight of water was applied and dried to form a polymer substance layer having a thickness of about 2 μm. The same dyeing layer as in Example 6 was formed on this polymer material layer to produce an intermediate sheet. At the time of forming the dyeing layer, the solvent resistance of the polymer material layer was good and a uniform dyeing layer could be formed. Next, as a result of following the same recording process as in Example 6, the laminate of the dyed layer and the polymer material layer on which the image was recorded was able to be transferred onto plain paper cleanly. The transferred image on plain paper obtained as described above was a high-quality image having a recording density of 1.5 at a pulse width of 8 ms and having uniform dots from low recording density to high recording density. No bleeding occurred in the recorded image even after the recorded image was left under a constant temperature and humidity condition of 60 ° C. and 60% RH for 200 hours.

Example 11 Only the acrylonitrile-styrene copolymer resin of the coating material for forming a color material layer in Example 5 was changed to a vinyl chloride-vinyl acetate copolymer resin (glass transition point: 70 ° C., average degree of polymerization: 420). A transfer body was prepared in the same manner as in Example 5 using paint.

Next, 10 parts by weight of chlorinated polypropylene (CP-100, Asahi Denka Kogyo Co., Ltd.), 0.03 parts by weight of polyether-modified silicone oil, 50 parts by weight of toluene were placed on a 6 μm-thick PET film. 2-butanone 5
A coating consisting of 0 parts by weight was applied and dried to form a polymer substance layer having a thickness of about 2 μm. The same dyeing layer as in Example 6 was formed on this polymer material layer to produce an intermediate sheet. At the time of forming the dyeing layer, the solvent resistance of the polymer material layer was good and a uniform dyeing layer could be formed. The above transfer member and this intermediate sheet
Using the sheet, a gradation image was recorded on the dyed layer of the intermediate sheet under the same recording conditions as in Example 1. Thereafter, as a result of following the same recording process as in Example 6, the laminate of the dyed layer and the polymer material layer on which the image was recorded was able to be clearly transferred onto plain paper. The transferred image on plain paper obtained as described above was a high quality image having a recording density of 1.7 at a pulse width of 8 ms and uniform dots from low recording density to high recording density. No bleeding occurred in the recorded image even after the recorded image was left under a constant temperature and humidity condition of 60 ° C. and 60% RH for 200 hours.

Example 12 Only the acrylonitrile-styrene copolymer resin of the coating material for forming a color material layer in Example 5 was converted to a vinyl chloride-acrylate copolymer resin (S-LEC E-C110, glass transition point: about 65 ° C., average polymerization) (Degree: about 380, Sekisui Chemical Co., Ltd.) was used to prepare a transfer body in the same manner as in Example 5.

Next, a coating composed of 10 parts by weight of polycarbonate and 90 parts by weight of toluene was applied on a 6 μm thick PET film and dried to form a polymer layer having a thickness of about 2 μm. The same dyeing layer as in Example 6 was formed on this polymer material layer to produce an intermediate sheet. At the time of forming the dyeing layer, the solvent resistance of the polymer material layer was good and a uniform dyeing layer could be formed. Using the above-mentioned transfer body and this intermediate sheet,
A gradation image was recorded on the dyed layer of the intermediate sheet under the same recording conditions as in Example 1. Thereafter, as a result of following the same recording process as in Example 6, the laminate of the dyed layer and the polymer material layer on which the image was recorded was able to be clearly transferred onto plain paper. The transferred image on plain paper obtained as described above was a high quality image having a recording density of 1.67 at a pulse width of 8 ms and having uniform dots from low recording density to high recording density. This recorded image was subjected to a constant temperature and humidity condition of 60 ° C. and 60% RH for 20 minutes.
No bleeding occurred in the recorded image even after standing for 0 hours.

Example 13 A silicone release agent (P) was placed on a PET film having a thickness of 9 μm.
RX305 Dayspurge, Dow Corning Toray
Silicone Co.) A coating consisting of 10 parts by weight of toluene and 10 parts by weight of toluene was applied with a wire bar, dried and then heated at 100 ° C.
Heat treatment was performed for one hour to form a silicone rubber release layer having a thickness of about 5 μm. On this release layer, 4 parts by weight of polyvinyl butyral resin (BL-S), 0.75 parts by weight of a fluorinated acrylic silicone resin solution (F-2A), 0.004 parts of di-n-butyltin dilaurate Parts by weight, 18 parts by weight of toluene, 2
-A coating consisting of 18 parts by weight of butanone is coated with a wire bar, dried and heat-treated at 100 ° C for 30 minutes to a thickness of about 2 µm.
To form an intermediate sheet. Next, the transfer member of Example 2 was combined with this intermediate sheet to obtain an image of Example 1.
The recording conditions were as follows. After the recording, when the intermediate sheet is separated from the transfer body, the gradation pattern is clear on the dyed layer of the intermediate sheet without the color material layer of the transfer body being fused to the dyed layer of the intermediate sheet. Was recorded. Next, the intermediate sheet on which the image was recorded and plain paper were combined, and the dyeing layer was transferred onto plain paper in the same manner as in Example 1 through a heating roll (at a temperature of about 180 ° C.).

The transferred image on plain paper obtained as described above was a high quality image having a reflection recording density of 1.6 at a pulse width of 8 ms and uniform dots from low recording density to high recording density. . This recorded image was taken at 60 ° C. and 60% R
No bleeding occurred in the recorded image even after being left for 200 hours under a constant temperature and humidity condition of H.

Example 14 A coating consisting of 10 parts by weight of a silicone coating agent (SE9157RTV, Dow Corning Toray Silicone Co., Ltd.) and 15 parts by weight of toluene was coated on a PET film having a thickness of 6 μm. -After coating and drying at 100 ° C, 1
Heat treatment was performed for a time to form a silicone rubber release layer having a thickness of about 2 μm. On this release layer, 5 parts by weight of polyvinyl butyral resin [BL-2 (degree of polymerization = about 450), Sekisui Chemical Co., Ltd.], 50 parts by weight of toluene, 50 parts by weight of 2-butanone
About 1.5μm in thickness by applying and drying a coating consisting of parts by weight
Was formed. 4 parts by weight of a polyvinyl butyral resin (BH-S), 0.67 parts by weight of a fluorinated acrylic silicone resin solution (F-2A), and di-n-butyltin dilaurate 0. 003 parts by weight,
A coating consisting of 20 parts by weight of toluene and 20 parts by weight of 2-butanone is applied with a wire bar and dried, and then heat-treated at 100 ° C. for 30 minutes to form a dyeing layer having a thickness of about 1 μm, thereby forming an intermediate sheet. Produced. Next, recording was performed under the recording conditions of Example 1 by combining the transfer member of Example 2 with the intermediate sheet. After the recording, when the intermediate sheet is separated from the transfer body, the gradation pattern is clear on the dyed layer of the intermediate sheet without the color material layer of the transfer body being fused to the dyed layer of the intermediate sheet. Was recorded. Next, the intermediate sheet on which the image is recorded and plain paper are combined and passed through a heating roll (temperature: about 210 ° C.) in the same manner as in Example 1 to dye the polymer material layer of the intermediate sheet. The layers were transferred onto plain paper. The transferred image on plain paper obtained as described above was a high-quality image having a recording density of 1.5 at a pulse width of 8 ms and having uniform dots from low recording density to high recording density. This recorded image is taken at 60 ° C. and 60% RH.
No bleeding occurred in the recorded image even after standing for 200 hours under the condition of constant temperature and humidity.

Example 15 4 parts by weight of a polyvinyl butyral resin (BL-S), 0.083 parts by weight of a fluorinated acrylic silicone resin solution (F-2A), and di-n- on a 9-μm-thick PET film A coating consisting of 0.001 part by weight of butyltin dilaurate, 18 parts by weight of toluene and 18 parts by weight of 2-butanone is applied with a wire bar, dried and then heat-treated at 100 ° C. for 30 minutes to obtain a high thickness of about 2 μm. A molecular substance layer is formed, and a coating composed of 4 parts by weight of polyvinyl butyral resin (BL-S), 18 parts by weight of toluene, and 18 parts by weight of 2-butanone is applied on the high molecular substance with a wire bar. After drying, heat treatment was performed at 100 ° C. for 30 minutes to form a dyeing layer having a thickness of about 2 μm, thereby producing an intermediate sheet. Next, the transfer sheet of Example 5 and the intermediate sheet were combined and recorded under the recording conditions of Example 1. After the recording, when the intermediate sheet is separated from the transfer body, the gradation pattern is clear on the dyed layer of the intermediate sheet without the color material layer of the transfer body being fused to the dyed layer of the intermediate sheet. Was recorded. Next, the intermediate sheet on which the image is recorded and plain paper are combined and passed through a heating roll (at a temperature of about 180 ° C.) in the same manner as in Example 1 to dye the polymer sheet of the intermediate sheet. The layers were transferred onto plain paper. The transferred image on plain paper obtained as described above was a high-quality image having a recording density of 1.6 at a pulse width of 8 ms and having uniform dots from low recording density to high recording density. No bleeding occurred in the recorded image even after the recorded image was left under a constant temperature and humidity condition of 60 ° C. and 60% RH for 200 hours.

Example 16 10 parts by weight of an epoxy acrylate resin, 0.5 parts by weight of a sensitizer (Irgacure 184, Nippon Ciba Geigy Co., Ltd.), and a fluorine-containing acryl silicone resin solution (9 parts by weight) were placed on a PET film having a thickness of 9 μm. F-2A) 1.0 part by weight, di-n-
0.001 part by weight of butyltin dilaurate, 9 parts of ethyl acetate
After coating and drying with a wire bar of 0 parts by weight,
The epoxy acrylate resin was cured by ultraviolet irradiation by irradiation with a high-pressure mercury lamp of Kw to form a release layer having a thickness of about 1 μm. The same dyeing layer as in Example 15 was formed on this release layer to produce an intermediate sheet. Next, the transfer member of Example 5 and this intermediate sheet
And recording was performed under the recording conditions of Example 1. After the recording, when the intermediate sheet is separated from the transfer body, the gradation pattern is clear on the dyed layer of the intermediate sheet without the color material layer of the transfer body being fused to the dyed layer of the intermediate sheet. Was recorded. Next, the intermediate sheet on which the image was recorded was combined with plain paper, and the dyed layer of the intermediate sheet was passed through a heating roll (at a temperature of about 180 ° C.) on plain paper in the same manner as in Example 1. Transcribed.
The transferred image on plain paper obtained as described above was a high-quality image having a recording density of 1.6 at a pulse width of 8 ms and having uniform dots from low recording density to high recording density. No bleeding occurred in the recorded image even after the recorded image was left under a constant temperature and humidity condition of 60 ° C. and 60% RH for 200 hours.

Example 17 Only the polyvinyl butyral resin in the coating material for forming a color material layer in Example 2 was replaced with a saturated polyester resin (VYLON, R
V200, glass transition point: about 67 ° C., Toyobo Co., Ltd.).

Using this transfer material and the intermediate sheet of Example 2, a gradation image was recorded on the dyed layer of the intermediate sheet in the same manner as in Example 1. After the recording, when the transfer member was separated from the intermediate sheet, the tone pattern was clearly recorded without the color material layer of the transfer member being fused to the dyed layer of the intermediate sheet. Next, plain paper was used as an image receiving member, and the image receiving member and an intermediate sheet on which an image was recorded were passed between heating rolls in the same manner as in Example 1. Then, PET of the film base material of the intermediate sheet was used. When the film was released from the plain paper, the dyed layer on which the image was recorded was transferred onto the plain paper. The transferred image on plain paper was a high quality image having a reflection recording density of 1.85 at a pulse width of 8 ms and having uniform dots from low recording density to high recording density.
No bleeding occurred in the recorded image even after the recorded image was left under a constant temperature and humidity condition of 60 ° C. and 60% RH for 200 hours.

Example 18 Only the polyvinyl butyral resin in the coating material for forming the color material layer in Example 2 was converted to a vinyl acetate resin (average degree of polymerization: 530).
A transfer member was produced in the same manner as in Example 2 using the coating material changed to (1). Using this transfer material and the intermediate sheet of Example 2, a gradation image was recorded on the dyed layer of the intermediate sheet in the same manner as in Example 1. After the recording, when the transfer member was separated from the intermediate sheet, the tone pattern was clearly recorded without the color material layer of the transfer member being fused to the dyed layer of the intermediate sheet. Next, plain paper was used as an image receiving member, and the image receiving member and an intermediate sheet on which an image was recorded were passed between heating rolls in the same manner as in Example 1. Then, PET of the film base material of the intermediate sheet was used. When the film was released from the plain paper, the dyed layer on which the image was recorded was transferred onto the plain paper. The transferred image on plain paper was a high quality image having a reflection recording density of 1.85 at a pulse width of 8 ms and having uniform dots from low recording density to high recording density. This recorded image was subjected to a constant temperature and humidity condition of 60 ° C. and 60% RH for 20 minutes.
No bleeding occurred in the recorded image even after standing for 0 hours.

[0077]

As described above, according to the present invention, the color is
Transfer member having a color material layer composed of a material and a binder, and a base material B
Intermediate having a dyeing layer on sheet - DOO and, keep <br/> the combination of the image receptor, the intermediate and the color material layer surface of the transfer member The first sheet - transcript superposing a dyeing layer surface bets A sublimation type thermal transfer image is formed on the dyed layer of the intermediate sheet by the recording head from the side of the base material A, and then the intermediate sheet and the image receiving member are set such that the dyeing layer surface having the recorded image is on the image receiving member side. superimposed Te, the dyeing layer intermediate sheet having a recorded image by heat and / or pressure - in the thermal transfer recording method for forming an image on is transferred from the capital of the substrate B on the receiving body by receiving body, said sintered Acrylic material
Resin, styrene resin, urethane resin, polyester
Resin, vinyl acetate resin, amide resin, cellulose
Resin, vinyl chloride resin, chlorinated resin and polycarbonate
At least one member selected from the group consisting of
The glass transition point of at least one binder to be used is 40 ° C.
~ 150 ° C, and the dyeing layer is at least
It is formed by using polyvinyl acetal.
Thermal transfer recording method, or a color material and a binder
Transfer material having a color material layer composed of
In the combination of the intermediate sheet and the receiver,
The color material layer surface of the transfer body and the dyeing layer surface of the intermediate sheet are overlapped
Of the intermediate sheet by the recording head from the substrate A side of the transfer member
A sublimation type thermal transfer image is formed on the dyed layer, and then an intermediate sheet is formed.
The dye receiving layer surface having a recording image with the image receiving member is attached to the image receiving member.
Overlaid on the side, recorded by heat and / or pressure
Receiving a dyeing layer having an image from the base material B of the intermediate sheet
Thermal transfer recording to form an image on a receiver by transferring it on a body
The method wherein the binder is at least polyvinyl acetate.
And the dyeing layer is at least polyvinyl acetate.
Is formed using tar and fluorine-based material.
Certain thermal transfer recording methods, or having a color material layer on substrate A
Transfer body and at least dyeing layer on base material B via a release layer
In the combination of the intermediate sheet having
The recording layer is formed using at least polyvinyl acetal.
First, the color material layer surface of the transfer body and the intermediate sheet
The recording head is overlapped with the dyed layer surface from the substrate A side of the transfer body.
Sublimation type thermal transfer image on the dyed layer of intermediate sheet
Then, the intermediate sheet and the image receiving body have a recorded image.
The dyeing layer surface was superposed with the image receiving body side facing, and heat and / or
Or at least the dyeing layer is formed by pressure to the base material of the intermediate sheet.
B is transferred onto the image receiving member from the release layer surface on
Transfer recording method for forming an image on the substrate, or color transfer on the substrate A
Transfer material having a material layer, and a small amount of
At least has a sequential laminate of a polymer material layer and a dyeing layer
In the combination of the intermediate sheet and the image receiving body, the dyeing layer
It is formed at least using polyvinyl acetal.
First, the color material layer surface of the transfer body and the dyeing layer surface of the intermediate sheet
From the substrate A side of the transfer body by the recording head
A sublimation type heat transfer image is formed on the dyed layer of the intermediate sheet,
The dye sheet surface having the recorded image is formed by interposing the intermediate sheet and the image receiving member.
Overlap, heat and / or pressure on the receiver side
To sequentially seal the polymer material layer and the dyeing layer of the laminate.
Transferred from the release layer surface on the base material B to the image receiving body.
By using the thermal transfer recording method for forming an image on the image receiving member, also has a dyeing adhesive layer on the substrate B, the dyeing layer is small
At least using polyvinyl acetal
The use of the intermediate sheet used in the thermal transfer recording method according to claim 1 provides excellent thermal fusion prevention properties between the transfer body and the intermediate sheet and / or the presence or absence of a release layer of the intermediate sheet. Regardless of the thermal transfer recording method, high quality image recording of sublimation type thermal transfer recording on any image receiving body including plain paper is possible, and the bleed resistance of the recorded image is high and the handling is easy.
及in beauty machine - it is possible to obtain the door.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing in principle a recording method in an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view of a transfer body according to an example of the present invention.

FIG. 3 is a schematic cross-sectional view of an intermediate sheet according to an embodiment of the present invention.

FIG. 4 is a schematic cross-sectional view of an intermediate sheet according to an embodiment of the present invention.

FIG. 5 is a schematic cross-sectional view of an intermediate sheet according to an embodiment of the present invention.

FIG. 6 is a schematic cross-sectional view of an intermediate sheet according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transfer body 2 Intermediate sheet 3 Image receiver 4 Recording head 5 Platen 6 Heating roll 7 Heating roll 8 Base material A 9 Color material layer 10 Base material B 11 Dyeing layer 23 Base material A 24 Color material layer Reference Signs List 25 base material B 26 dyeing layer 27 release layer 28 polymer material layer 40 roll 41 roll

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Nobuyoshi Taguchi 1006 Kazuma Kadoma, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd. (56) References JP-A-3-65391 (JP, A) JP-A-63- 78795 (JP, A)

Claims (10)

(57) [Claims] An intermediate sheet having a transfer material having a color material layer composed of a color material and a binder on a base material A and a transfer material having a dye layer on a base material B
In the combination of the transfer sheet and the image receiving member, first, the color material layer surface of the transfer member and the dyeing layer surface of the intermediate sheet are overlapped, and the dyeing layer of the intermediate sheet is formed by the recording head from the substrate A side of the transfer member. To form a sublimation type thermal transfer image, and then superimpose the intermediate sheet and the image receiving body on the dyeing layer side having the recorded image with the image receiving side, and apply heat and / or pressure to the dyeing layer having the recorded image. Is transferred from the base material B of the intermediate sheet onto the image receiving member to form an image on the image receiving member, wherein the binder is an acrylic resin, a styrene resin, a urethane resin, or a polyester resin. At least one selected from the group consisting of resin, vinyl acetate resin, amide resin, cellulose resin, vinyl chloride resin, chlorinated resin and polycarbonate. Glass transition point of adhesion material In the range of 40 ° C. to 150 DEG ° C., and the dyeing layer is at least polyvinyl acetal - thermal transfer recording method are formed with Le. 2. A transfer member having a color material layer comprising a color material and a binder on a substrate A, and an intermediate sheet having a dye layer on a substrate B.
In the combination of the transfer sheet and the image receiving member, first, the color material layer surface of the transfer member and the dyeing layer surface of the intermediate sheet are overlapped, and the dyeing layer of the intermediate sheet is formed by the recording head from the substrate A side of the transfer member. To form a sublimation type thermal transfer image, and then superimpose the intermediate sheet and the image receiving body on the dyeing layer side having the recorded image with the image receiving side, and apply heat and / or pressure to the dyeing layer having the recorded image. Is transferred from the base material B of the intermediate sheet onto the image receiving body to form an image on the image receiving body, the binder is at least polyvinyl acetal, and the dyeing layer is A thermal transfer recording method formed using at least polyvinyl acetal and a fluorine-based material. 3. The intermediate sheet according to claim 1, wherein the intermediate sheet has a structure in which a polymer material layer and a dyeing layer are sequentially laminated on the base material B, and the laminate is transferred to an image receiving member. Thermal transfer recording method. 4. The intermediate sheet according to claim 2, wherein the intermediate sheet has a laminated structure of a polymer material layer and a dyeing layer on the base material B, and the laminated material is transferred to an image receiving member. Thermal transfer recording method. 5. A combination of a transfer member having a color material layer on a substrate A, an intermediate sheet having at least a dyeing layer on a substrate B via a release layer, and an image receiving member. The dyeing layer is formed using at least polyvinyl acetal,
First, the color material layer surface of the transfer body and the dye sheet surface of the intermediate sheet are overlapped, and a sublimation type thermal transfer image is formed on the dye sheet of the intermediate sheet by the recording head from the base material A side of the transfer body. Then, the intermediate sheet and the image receiving member are superimposed on each other with the dyed image layer having the recorded image facing the image receiving member, and at least the dyeing layer is released from the intermediate sheet on the base material B by heat and / or pressure. A thermal transfer recording method in which an image is formed on the image receiving member by transferring the image from the layer surface onto the image receiving member. 6. An intermediate sheet having a transfer body having a color material layer on a base material A and a laminate of at least a polymer material layer and a dyeing layer on a base material B via a release layer. And the image receiving body, the dyeing layer is formed by using at least polyvinyl acetal, and the color material layer surface of the transfer body and the dyeing layer surface of the intermediate sheet are first overlapped and transferred. Base material A
A sublimation type thermal transfer image is formed on the dyed layer of the intermediate sheet by the recording head from the side, and then the intermediate sheet and the image receiving member are superposed with the dyed image layer having the recorded image facing the image receiving member. The polymer material layer and the dyeing layer of the laminate are sequentially transferred from the release layer surface on the base material B of the intermediate sheet onto the image receiving member by heat and / or pressure to form an image on the image receiving member. Thermal transfer recording method. 7. The intermediate sheet used in the thermal transfer recording method according to claim 1, further comprising a dyeing layer on the base material B, wherein the dyeing layer is formed using at least polyvinyl acetal.
G. 8. The method according to claim 3, wherein a laminate of a polymer material layer and a dyeing layer is sequentially formed on the base material B, and the dyeing layer is formed by using at least polyvinyl acetal. Intermediate sheet used in the thermal transfer recording method. 9. A dyeing layer having a release layer on a base material B via a release layer,
6. The intermediate sheet used in the thermal transfer recording method according to claim 5, wherein the dyeing layer is formed by using at least polyvinyl acetal. 10. A base material B having a layered product of a polymer material layer and a dyeing layer in order via a release layer, wherein the dyeing layer is formed by using at least polyvinyl acetal. An intermediate sheet used in the thermal transfer recording method according to claim 6.