JPH10100550A - Manufacture of sublimable type thermal transfer material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate irregular adherent amount of an ink layer and to reduce occurrence of uneven image by coating a support with ink layer forming liquid by using a gravure printing method or a turtle shall type cell to manufacture a sublimable type thermal transfer material having the ink layer by dispersing sublimable dye in binding agent on the support. SOLUTION: In the case of manufacturing the sublimable type thermal transfer material having an ink layer in which sublimable dye is dispersed in binding agent on a support to thermal transfer record a sheet to be transferred at a feeding speed of 1/n (n>1), the support 4 is coated directly or via an intermediate layer with ink layer forming liquid by selecting a turtle shell type cell as a cell of a coating roll 1 by using a gravure printing method or a flexographic method. In this case, the support may be coated with the forming liquid plural times, and viscosity of the forming liquid after second and following times is regulated to lower viscosity than that at the first time. A halftone volume of the roll 1 used for lap coating after the second or following times is reduced from that at the first time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a sublimation type thermal transfer member used for a printer, a copying machine, etc., and more particularly, to a method of applying a thick film by a gravure printing method or a flexographic printing method. The present invention relates to a method for producing a sublimation-type thermal transfer member capable of obtaining a uniform coating layer without unevenness.

[0002]

2. Description of the Related Art In recent years, as a recording method using a color printer, a method of recording by sublimating and transferring a sublimable dye from a thermal transfer member onto a recording paper using a thermal head or a laser beam has attracted attention. In this sublimation thermal transfer recording method, in a thermal transfer body in which an ink layer in which a sublimation dye is dispersed in a resin binder is provided on a support, if there is slight coating unevenness of the ink layer, a transferred image is formed. It was confirmed by an experiment that it was inferior. In particular, in the so-called n-times mode method, in which the speed of the recording paper is set to n times (n> 1) the speed of the thermal transfer member and printing is repeatedly performed while both sheets are running, a used portion before the ink layer is used. The printing is performed a number of times by a relative speed method in which the paper is conveyed while gradually shifting the overlap with the used portion in the later use, and is also called a speed difference method.

In such a multiple-time recording by the n-times mode method, since a part of the unused portion of the ink layer is always supplied every time printing is performed, a large number of recordings by the constant velocity mode method are merely repeated use of the used portion. Although there is an advantage that the variation of the remaining ink amount due to the recording history can be reduced as compared with the multiple recording, the n-times mode ribbon has a coating width of 1 / n of one color as compared with the one-time ribbon, and at the same time the ink layer Must also be increased.

[0004] Therefore, yellow, magenta,
Ink layers of three or four colors of cyan and, if necessary, black, must be sequentially provided on the long support sheet and applied relatively thickly.

On the other hand, a gravure printing method (see FIG. 1) is generally used as a one-time thermal transfer ribbon surface-sequential coating method. The gravure printing method uses a coating roll engraved with a pattern of dots (small dents engraved on the roll surface) called a cell, and after the coating roll pumps up the paint, the doctor paints off excess paint on the roll surface. This is to transfer the paint remaining in the halftone dots to the support. Further, there is a feature that the rotation direction of the coating roll and the feed direction of the support, the peripheral speed of the coating roll and the feed speed of the support are the same. In the surface-sequential application of the one-time thermal transfer ribbon by the gravure printing method, a lattice-type cell, which is a general cell, is used, and is applied in a thickness of about 1.0 μm after drying.

However, as a method for sequentially applying the thermal transfer ribbon for the n-times mode, a narrow and thick film coating method is required.
In general gravure printing, narrow-width coating can be performed, but there is a limit in coating a thick-film uniform layer. In other words, when trying to obtain a thick film, using a gravure plate with a large halftone dot volume or using a paint with a high liquid viscosity, unevenness in the amount of adhesion (a phenomenon where the coating film becomes thicker or thinner) tends to occur Due to the difficulty, the gravure printing method has not been adopted as a method for applying the thermal transfer ribbon for the n-times mode until now. If the ink layer has an uneven adhesion amount, this causes image unevenness on the recording paper. In particular, according to the n-times mode method, the image unevenness is enlarged and printed n times.

A kiss gravure printing method (see FIG. 2) is also known as a printing method capable of performing the surface sequential coating. The kiss gravure printing method uses a coating roll in which halftone dots are engraved on the entire outer periphery of the roll.After the coating roll pumps up the paint, the doctor paints off the excess paint on the roll surface and removes the paint remaining in the halftone dots. This is to be transferred to a support. There is a feature that the rotation direction of the coating roll and the feeding direction of the support can be reversed, so that a thick and relatively uniform film thickness can be applied. In this kiss gravure printing method, the support can be brought into contact with or separated from the surface of the coating roll by the up-down movement of the hold-down roll to perform the surface-sequential coating.
(When the support is brought into contact with the coating roll) and at the end of application (when the support is separated from the coating roll), the coating film is disturbed, which is not suitable for narrow-width coating.

A flexographic printing method (see FIG. 3) has been known as a printing method developed from the gravure printing method. The difference between the flexographic printing method and the gravure printing method is that the coating roll has no pattern, halftone dots are engraved on the entire outer periphery, and the plate cylinder with the uneven pattern is added, when switching the pattern In contrast, in the gravure printing method, an expensive coating roll is replaced, whereas in the flexographic printing method, an inexpensive plate cylinder needs to be replaced. However, the method for sequentially applying the thermal transfer ribbon for the n-times mode has the same disadvantage as the gravure printing method, and the flexographic printing method has not been adopted as the method for applying the thermal transfer ribbon for the n-times mode until now.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is directed to a coating method capable of obtaining a uniform layer with a narrow and thick film, particularly an ink layer of a sublimation type n-times mode thermal transfer member. It is an object of the present invention to provide a coating method for reducing the occurrence of image unevenness based on the uneven amount of toner.

[0010]

According to the present invention, first, an ink layer formed by dispersing at least a sublimable dye in a binder is provided on a support. / N
In a method for producing a sublimation type thermal transfer body capable of performing thermal transfer recording at a traveling speed of (n> 1), an ink layer is formed by using a gravure printing method or a flexographic printing method and selecting a turtle type cell as a cell of a coating roll. The present invention provides a method for producing a sublimation-type thermal transfer body, which comprises applying a liquid onto a support directly or via an intermediate layer. Secondly, a support has an ink layer formed by dispersing at least a sublimable dye in an organic binder, and has a traveling speed of 1 / n (n>
In the method for producing a sublimation-type thermal transfer body capable of thermal transfer recording in 1), the ink layer forming liquid having the same composition is applied onto the support a plurality of times directly or via an intermediate layer by a gravure printing method or a flexographic printing method. A method for producing a sublimation-type thermal transfer member is provided. Third, in the method for producing a sublimation-type thermal transfer member described in the second aspect, the viscosity of the ink layer forming liquid used in the second and subsequent overlap coatings is changed to the first forming liquid instead of the ink layer forming liquid having the same composition. Provided is a method for producing a sublimation-type thermal transfer member, characterized in that the viscosity is lower than the viscosity. Fourth, an ink layer formed by dispersing at least a sublimable dye in an organic binder on a support is provided, and thermal transfer recording can be performed at a running speed of 1 / n (n> 1) with respect to a receiving paper. In a method for producing a sublimation-type thermal transfer body, a method of producing a sublimation-type thermal transfer body, which comprises applying an ink layer directly on a support or via an intermediate layer, and then applying a solvent on the formed ink layer. A manufacturing method is provided. Fifth, in the method for producing a sublimation-type thermal transfer member described in the third aspect, the halftone dot volume of the coating roll used for the second and subsequent overlap coatings is smaller than the halftone volume of the coating roll used for the first coating. A method for producing a sublimation-type thermal transfer member is provided. Sixth, in the method for producing a sublimation-type thermal transfer member according to any one of the first to fourth aspects, the ink layer coating film on the support is supported on a heat roll having a surface temperature of 25 ° C. or higher while the coating is not dried. A method for producing a sublimation-type thermal transfer member, comprising contacting an uncoated surface of a body and heating an ink layer coating film. Seventh, the method for producing a sublimation-type thermal transfer member according to any one of the first to fourth aspects, wherein the ink layer forming liquid is heated to 25 ° C. or more and applied. A method is provided.

Hereinafter, the present invention will be described in detail. The method of manufacturing a sublimation-type thermal transfer body described in the first above is characterized in that the cells of the coating roll used in the gravure printing method or the flexographic printing method are turtle-shaped cells (see FIG. 5), so that the surface of the one-time thermal transfer ribbon An ink layer having a uniform film thickness and a larger film thickness can be obtained than in the case of a lattice type cell (see FIG. 4) generally used for sequential coating and the like.

According to this method, immediately after the ink layer forming liquid (also referred to as a paint) pumped into the halftone dots is transferred to the support, the halftone dot-shaped granular paint is placed on the support. Although it is in a state, in the subsequent drying process, the paint levels and the film becomes smooth. The more uniform the film thickness is
Same number of lines (L / inch, number of lines = 25.4 (mm) / a
(mm)) and plate depth (d (mm)), comparing the turtle-shaped cells and the lattice-shaped cells under the conditions of plate depth (d (mm)), the turtle-shaped cells have smaller cell areas due to their shapes (see FIG. 5). It is thought that this is because the coating film is more dense and the coating film is easily smoothed. Also, the film thickness is larger because the shape of the tortoiseshell cell is higher than the transition rate (actual transition amount /
It is conceivable that the halftone dot volume) increases.

The method of manufacturing a sublimation-type thermal transfer member described in the second aspect is to apply a coating of the same composition a plurality of times by gravure printing or flexographic printing, thereby forming a thicker and more uniform film than in the case of single coating. A good ink layer is obtained. This is the first application, after the coating has dried,
A thick film is obtained by repeatedly applying a paint thereon, and it is easier to obtain a uniform thick film by repeatedly applying a thick film at one time.

According to the method for producing a sublimation type thermal transfer member described in the third aspect, the viscosity of the paint used in the second and subsequent multi-layer coatings is changed instead of the application of the same composition described in the second aspect a plurality of times. By applying multiple times using each paint having a lower viscosity than the paint used for the first application,
An ink layer having a more uniform film thickness can be obtained. FIG. 6 shows a process of forming a coating film from the first application to the second application.
FIG. 6A to FIG. Immediately after the first application,
As shown in (a), a crushed paint having a halftone dot shape is placed on a support. Thereafter, the paint is dried while leveling, and becomes a dry film in a state shown in FIG. 6B. FIG. 6C shows a state immediately after the second application is further performed thereon. At this time, a phenomenon occurs in which the coating by the second application dissolves the dried film under the coating, and the state becomes the same as immediately after the application of the high-viscosity coating on the support. The lower the viscosity of the paint, the easier it is to level, and therefore the lower the viscosity of the paint used for the second and subsequent coatings, the lower the viscosity of the first paint. An ink layer having a uniform film thickness can be obtained. If the viscosity of the second paint is the same as that of the first paint,
Since the leveling is more difficult than in the case of FIG. 6B, the dried film in FIG.

In the method of manufacturing a sublimation-type thermal transfer member described in the fourth aspect, an ink layer having a more uniform film thickness can be obtained by applying a solvent after coating the ink layer. The reason why the film thickness becomes more uniform is that the upper layer of the crushed paint in FIG. 6C is replaced with a solvent, and the solvent dissolves the upper portion of the lower dry film, thereby performing leveling.

In the method for producing a sublimation-type thermal transfer member described in the fifth aspect, each of the paints used for the second and subsequent overcoating has a lower viscosity than the paint used for the first coating. In addition, by making the halftone dot volume of the coating roll used for the second and subsequent coating smaller than that of the coating roll used for the first coating and applying the coating multiple times, an ink layer having a more uniform film thickness can be obtained. Can be In gravure or flexographic printing,
It is necessary to select a halftone volume suitable for the viscosity of the paint. If you make a mistake, for example, if you select a dot volume that is too large even though the viscosity of the paint is low, the paint in the dots will spill out after the coating roll has pumped the paint and before it has been transferred to the support, and the paint will spill out of areas other than the picture. This causes the problem of plate fogging, which causes ink to adhere to the surface. Conversely, if the viscosity of the paint is relatively high, choosing too small a dot volume will result in a non-uniform film thickness. For this reason, in the second and subsequent repetitive coatings, an ink layer having no coating film abnormality can be obtained by reducing the dot volume while simultaneously lowering the viscosity.

In the method for producing a sublimation-type thermal transfer member described in the sixth aspect, an ink layer is applied on a support to form a coating film, and while the coating film is in an undried state, the roll surface temperature is set at 2 ° C.
By bringing the non-coated surface of the support into contact with a heat roll at 5 ° C. or higher, an ink layer having a more uniform film thickness can be obtained. Since the coating film (paint) in the undried state is heated to decrease the viscosity and increase the fluidity, an ink layer having a more uniform film thickness can be obtained.

In the method for producing a sublimation-type thermal transfer member described in the seventh aspect, the use of a coating material at 25 ° C. or higher for the coating of the ink layer makes it possible to form a more uniform and thicker ink layer. can get. This is because the viscosity is reduced and the fluidity is increased by heating the paint, so that the film thickness becomes more uniform due to the effect, and the transition rate (actual transition amount / dot volume) increases. is there.

[0019]

EXAMPLES The present invention will be described more specifically with reference to the following examples, but the present invention is not limited to these examples. In addition, the amounts of the respective components shown below all represent parts by weight. First, the formulations of the support and the coating solution used in each of the examples and comparative examples are shown below. In addition, each sublimation type thermal transfer body for n-times mode was prepared by providing an intermediate layer having a thickness of 1.0 μm on a support by a wire bar, and further providing a dye supply layer (ink layer) having the contents shown in Examples and Comparative Examples. ) And then apply a thickness of 1.0 μm with a wire bar.
m, a low-dyeing resin layer having a thickness of 0.7 μm was provided on the uppermost layer by a wire bar. <Sublimation dye> Yellow: Yellow VP Magenta: HM-1041 Cyan: Ceres Blue <Support> A 6-μm-thick polyamide film provided with a 1 μm-thick silicone resin-based heat-resistant layer on the back surface. <Intermediate layer forming liquid> Polyvinyl butyral resin 10 parts 2-butanone 90 parts <Dye supply layer forming liquid = ink layer forming liquid> [Solution A] Polyvinyl butyral resin 10 parts Sublimation dye 35 parts Methanol 160 parts Diisocyanate 5 parts [B Solution] Polyvinyl butyral resin 10 parts Sublimation dye 35 parts Methanol 205 parts Diisocyanate 5 parts <Dye transfer contributing layer forming liquid> Polyvinyl butyral resin 2 parts 2 methyl 2-butanol 90 parts Hydrophilic aliphatic isocyanate 1 part Layer forming liquid> Methyltrimethoxysilane 2
8 g was dissolved in a mixed solution of 50 g of toluene and 50 g of 2-butanone, added to 3 ml of 3% sulfuric acid, and hydrolyzed for 3 hours. This liquid is referred to as liquid C. Styrene-maleic acid copolymer 5 parts C solution 20 parts Tetrahydrofuran 20 parts Next, the engraving specifications of the coating roll used in each example are shown in Table 1 below. Note that the dot volume (cc /
m ² ) indicates the total volume of halftone dots per unit surface area of the coating roll.

[0020]

[Table 1]

Example 1 Using the solution A in the dye supply layer,
A dye supply layer having a thickness of 3.8 μm was obtained by one-time application by a gravure printing method using an F plate. 120 ° C, 1 after application
Drying was performed for 0 minutes.

Example 2 Using the dye supply layer A solution,
A dye supply layer having a thickness of 3.4 μm was obtained by one-time application by a gravure printing method using a D plate. 120 ° C, 1 after application
Drying was performed for 0 minutes. Further, a solution was applied thereon by a gravure printing method using a D plate using the solution A for the dye supply layer to obtain a dye supply layer having a total thickness of 6.6 μm obtained by two coatings. After coating, drying was performed at 120 ° C. for 10 minutes.

Example 3 Using the dye supply layer A solution,
A dye supply layer having a thickness of 3.4 μm was obtained by one-time application by a gravure printing method using a D plate. 120 ° C, 1 after application
Drying was performed for 0 minutes. Further, a solution was applied thereon by gravure printing using a D plate by using a dye supply layer B solution to obtain a dye supply layer having a total thickness of 5.7 μm obtained by two coatings. After coating, drying was performed at 120 ° C. for 10 minutes.

Example 4 Using the solution A of the dye supply layer,
A dye supply layer having a thickness of 3.4 μm was obtained by one-time application by a gravure printing method using a D plate. 120 ° C, 1 after application
Drying was performed for 0 minutes. Furthermore, it is applied once by a gravure printing method using an E plate using methanol,
Drying was performed at 120 ° C. for 10 minutes.

Example 5 Using the dye supply layer A solution,
A dye supply layer having a thickness of 3.4 μm was obtained by one-time application by a gravure printing method using a D plate. 120 ° C, 1 after application
Drying was performed for 0 minutes. Furthermore, using the solution B of the dye supply layer, coating was performed by gravure printing using the E plate to obtain a dye supply layer having a total thickness of 5.1 μm obtained by two coatings. After coating, drying was performed at 120 ° C. for 10 minutes.

Example 6 Using the dye supply layer A solution,
One coating was performed by a gravure printing method using a D plate.
After coating, while the coating is in an undried state, the non-coated surface of the support is brought into contact with a heat roll having a roll surface temperature of 30 ° C.,
A dye supply layer having a thickness of 3.4 μm was obtained. Then 120
Drying was performed at 10 ° C. for 10 minutes.

Example 7 Using a dye supply layer A solution heated to 30 ° C., a gravure printing method 1 using a D plate was used.
A dye supply layer having a thickness of 3.8 μm was obtained by one-time application. After coating, drying was performed at 120 ° C. for 10 minutes.

Example 8 Using the solution A in the dye supply layer,
A dye supply layer having a thickness of 3.6 μm was obtained by one-time application by flexographic printing using a plate. 120 ° C, 1 after application
Drying was performed for 0 minutes.

[Comparative Example 1] Using the dye supply layer A solution,
A dye supply layer having a thickness of 3.4 μm was obtained by one-time application by a gravure printing method using a D plate. 120 ° C, 1 after application
Drying was performed for 0 minutes.

Comparative Example 2 Using the dye supply layer A solution,
The dye supply layer having a thickness of 2.5 μm was obtained by one-time application by a flexographic printing method using a D plate (see FIG. 3). 1 after application
Drying was performed at 20 ° C. for 10 minutes.

Comparative Example 3 A dye supply layer having a thickness of 6.0 μm was obtained by a single application using a kiss gravure printing method using the dye supply layer A solution and a gravure roll having a 90-line / inch, oblique line cell. After coating, drying was performed at 120 ° C. for 10 minutes.

[Preparation of Transferred Paper] The paper to be used for evaluation was prepared as follows. An intermediate layer and an image receiving layer having the following compositions were sequentially coated on a synthetic paper (Yupo FP-150, manufactured by Oji Oil Chemical Paper Co., Ltd.) having a thickness of about 150 μm, and dried at a drying temperature of 75 ° C. for 1 minute to form each layer. . Next, the film was cured by holding at 60 ° C. for 24 hours to obtain a transfer paper for evaluation. <Intermediate layer forming liquid> Vinyl chloride-vinyl acetate-vinyl alcohol copolymer 10 parts Diisocyanate 5 parts Toluene 40 parts 2-butanone 40 parts <Image receiving layer forming liquid> Vinyl chloride-vinyl acetate-vinyl alcohol copolymer 10 parts Diisocyanate 5 parts Amino acid silicone oil 0.5 parts Epoxy-modified silicone oil 0.5 parts Toluene 40 parts 2-butanone 40 parts [Evaluation test] The sublimation type n-times mode thermal transfer body and transfer paper obtained as described above were The dye in the ink layer (dye supply layer) was transferred to a recording paper by mounting on a heat applying device using a thermal head, and image unevenness was visually evaluated. The evaluation results are shown in Table 2 below.

[0033]

[Table 2]

As shown in Table 2, the sublimation type n-times mode thermal transfer member according to the coating method of the example exhibited good images without image unevenness at least in a high density portion. In addition, it is shown that the thicker the film thickness, the higher the n value and the higher the performance. However, it was confirmed that all of Examples 1 to 8 satisfy n> 1.

[0035]

As described above, according to the method of manufacturing a sublimation-type thermal transfer member capable of performing n-times mode recording as described above in the first aspect,
By forming the ink layer by using a gravure printing method or a flexographic printing method and selecting a turtle-shaped cell as a cell of the coating roll, an ink layer having a uniform thickness and a narrow width is obtained.

According to the second method for producing a sublimation-type thermal transfer member capable of n-time mode recording, the ink layer is coated with a paint having the same composition a plurality of times by a gravure printing method or a flexographic printing method. Thus, a thick and uniform ink layer can be obtained.

According to the third method for producing a sublimation-type thermal transfer member capable of n-times mode recording, when forming an ink layer by gravure printing or flexographic printing a plurality of times, two times. By making the viscosity of the paint used for the second and subsequent coatings lower than that of the first paint, it is possible to obtain an ink layer of a narrow and thick film having a more uniform film thickness.

According to the method for manufacturing a sublimation-type thermal transfer member capable of n-times mode recording described in the fourth aspect, after the ink layer is applied, a solvent is applied thereon, so that the film thickness becomes more uniform. An ink layer having a narrow and thick film can be obtained.

According to the method of manufacturing a sublimation-type thermal transfer member capable of n-times mode recording described in the fifth aspect, the ink layer is formed by applying a plurality of times by gravure printing or flexographic printing. The viscosity of the paint used for the second and subsequent coatings is lower than that of the first paint, and the halftone dot volume of the coating roll used for the second and subsequent coatings is smaller than that of the first coating. Plate fogging can be prevented by using a material suitable for the liquid viscosity.

According to the method for producing a sublimation type thermal transfer member capable of n-times mode recording described in the sixth aspect, the ink layer is formed by a gravure printing method or a flexographic printing method using a coating roll having a turtle-shaped cell. When the ink layer is coated with a solvent after being formed by multi-layer coating, or when the ink layer is coated with a solvent, the support is placed on a heat roll having a roll surface temperature of 25 ° C. or higher while the ink layer coating is not dried. By contacting the non-coated surface of the above, an ink layer having a more uniform thickness and a narrower thickness can be obtained at low cost.

Further, according to the method for producing a sublimation type n-times mode thermal transfer member described in the seventh aspect, it is possible to apply 25
By applying a gravure printing method or a flexographic printing method using a coating material having a temperature of not less than ° C., an ink layer having a uniform thickness and a large thickness can be obtained at a low cost.

[Brief description of the drawings]

FIG. 1 is a perspective view for explaining a gravure printing method.

FIG. 2 is a perspective view illustrating a kiss gravure printing method.

FIG. 3 is a perspective view illustrating a flexographic printing method.

FIG. 4 is a plan view and a sectional view showing grid-like halftone dots (cells) formed on a coating roll.

FIG. 5 is a plan view and a sectional view showing a halftone dot (cell) formed on a coating roll.

FIG. 6 is an explanatory view by a cross section showing steps (a) to (d) in which a coating film dries.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 coating roll 2 doctor blade 3 impression cylinder 4 support for sublimation type thermal transfer body 5 hold-down roll 6 plate cylinder 7 crushed paint 8 paint film

Claims (7)

[Claims] An ink layer formed by dispersing at least a sublimable dye in a binder on a support, and performing thermal transfer recording at a running speed of 1 / n (n> 1) with respect to a receiving paper. In a method of manufacturing a sublimation-type thermal transfer body that can be used, a gravure printing method or a flexographic printing method is used, and a turtle type cell is selected as a cell of a coating roll, and an ink layer forming liquid is directly or via an intermediate layer on a support. A method for producing a sublimation-type thermal transfer member, characterized in that: 2. An ink layer comprising at least a sublimable dye dispersed in a binder on a support, wherein thermal transfer recording is performed at a running speed of 1 / n (n> 1) with respect to a paper to be transferred. A method for producing a sublimation-type thermal transfer body, wherein a gravure printing method or a flexo printing method is used, wherein an ink layer forming liquid having the same composition is repeatedly applied on a support a plurality of times directly or via an intermediate layer. A method for producing a thermal transfer member. 3. The method for producing a sublimation type thermal transfer recording material according to claim 2, wherein the viscosity of the ink layer forming liquid used in the second and subsequent overlapping coatings is changed to the first ink layer instead of the ink layer forming liquid having the same composition. A method for producing a sublimation-type thermal transfer member, characterized in that the viscosity is lower than the viscosity of the forming liquid. 4. An ink layer formed by dispersing at least a sublimable dye in an organic binder on a support, and performing thermal transfer recording at a running speed of 1 / n (n> 1) on a paper to be transferred. A method for producing a sublimation-type thermal transfer body, comprising applying an ink layer directly on a support or via an intermediate layer, and then applying a solvent on the formed ink layer. Manufacturing method. 5. The method for producing a sublimation-type thermal transfer member according to claim 3, wherein the halftone dot volume of the coating roll used for the second and subsequent overlapping coatings is smaller than the halftone dot volume of the coating roll used for the first coating. A method for producing a sublimation-type thermal transfer member. 6. The method for producing a sublimation-type thermal transfer member according to claim 1, wherein the ink layer coating film on the support is undried and a heat roll having a surface temperature of 25 ° C. or higher is applied to a heat roll. A method for producing a sublimation-type thermal transfer member, comprising contacting a non-coated surface and heating a coating film of an ink layer. 7. The method for producing a sublimation-type thermal transfer body according to claim 1, wherein the ink layer forming liquid is heated to 25 ° C. or more and applied.