JP2020055143A - Manufacturing method of printed matter and combination of thermal transfer sheet - Google Patents

Abstract

To provide a novel manufacturing method of a printed matter taking advantage of merits of a sublimation transfer method having smooth gradation representation and a combination of a thermal transfer sheet to be used therefor.SOLUTION: A printed matter is formed through: a step of preparing a transfer target body 10, a thermal transfer sheet 20 for a transfer target body, an intermediate transfer medium 30, and a thermal transfer sheet 40 for an intermediate transfer medium; a step of using the thermal transfer sheet 20 for a transfer target body to form a first image P1 on the transfer target body 10; a step of using the thermal transfer sheet 40 for an intermediate transfer medium to form a second image P2 which is a reverse image of the first image P1 on the intermediate transfer medium 30; and a step of transferring the second image P2 on the intermediate transfer medium 30 onto the first image P1 on the transfer target body 10.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a method for manufacturing a print and a combination of a thermal transfer sheet.

  2. Description of the Related Art Conventionally, there has been known a method for producing a printed matter of a sublimation transfer system using a thermal transfer sheet provided with a dye layer containing a sublimable dye. The sublimation transfer method is advantageous in that the gradation expression is smooth, but the dye layers constituting the thermal transfer sheet used are three colors of Y (yellow), M (magenta), and C (cyan). In many cases (for example, see Patent Literature 1), since a full-color image is formed with these three colors, color reproducibility may be poor.

  In order to improve color reproducibility in the sublimation transfer method, it is conceivable to use a thermal transfer sheet having a dye layer of a color other than these in addition to the YMC. In this case, repeated transfer to the receiving layer on the transfer-receiving body side is considered. As a result, thermal damage is accumulated, and there is a concern that fusion between the thermal transfer sheet and the receiving layer may occur or that the density may decrease. Further, when the number of dye layers increases, a new problem arises in that image formation is prolonged by that much.

JP 2008-087309 A

  The present invention is an invention made in such a situation, and provides a new method for manufacturing a printed matter utilizing the advantages of a sublimation transfer method in which gradation expression is smooth, and a combination of a thermal transfer sheet used in the method. Is the main issue.

  The present invention for solving the above-mentioned problem is a method for manufacturing a printed material, comprising the steps of preparing a transfer target, a thermal transfer sheet for a transfer target, an intermediate transfer medium, and a thermal transfer sheet for an intermediate transfer medium. Forming a first image on the transfer object using the thermal transfer sheet for the transfer object; and forming the first image on the intermediate transfer medium using the thermal transfer sheet for the intermediate transfer medium. Forming a second image by inverting the image, and transferring the second image on the intermediate transfer medium onto the first image on the transfer target. I do.

  According to the invention, the thermal transfer sheet for a transfer-receiving member has a yellow dye layer containing a yellow dye Y1, a magenta dye layer containing a magenta dye M1, and a cyan dye layer containing a cyan dye C1. The thermal transfer sheet for a medium has a yellow dye layer containing a yellow dye Y2, a magenta dye layer containing a magenta dye M2, and a cyan dye layer containing a cyan dye C2. Are different, the maximum absorption wavelength of the magenta dye M1 is different from the maximum absorption wavelength of the magenta dye M2, and the maximum absorption wavelength of the cyan dye C1 is different from the maximum absorption wavelength of the cyan dye C2. May be.

  On the other hand, in the invention, the thermal transfer sheet for a transfer-receiving member has a yellow dye layer containing a yellow dye Y1, a magenta dye layer containing a magenta dye M1, and a cyan dye layer containing a cyan dye C1. The thermal transfer sheet for an intermediate transfer medium has a yellow dye layer containing a yellow dye Y2, a magenta dye layer containing a magenta dye M2, and a cyan dye layer containing a cyan dye C2, and has a maximum absorption wavelength of the yellow dye Y1. The maximum absorption wavelength of the yellow dye Y2 is the same, the maximum absorption wavelength of the magenta dye M1 and the maximum absorption wavelength of the magenta dye M2 are the same, the maximum absorption wavelength of the cyan dye C1 and the maximum absorption of the cyan dye C2. The absorption wavelength may be the same.

  Further, in the above invention, the maximum absorption wavelengths of the yellow dyes Y1 and Y2 are both in the range of 400 nm to 500 nm, and the maximum absorption wavelengths of the magenta dyes M1 and M2 are both 500 nm to 600 nm. The maximum absorption wavelengths of the cyan dyes C1 and C2 are both within the range of 600 nm to 700 nm, and the maximum absorption wavelengths of the yellow dye Y1, the magenta dye M1, and the cyan dye C1, respectively. Are separated from each other by 80 nm or more, and the maximum absorption wavelength of the yellow dye Y2 is between the maximum absorption wavelength of the yellow dye Y1 and the maximum absorption wavelength of the magenta dye M1, and is separated by 30 nm or more from each other. The maximum absorption wavelength of the magenta dye M2 is the maximum absorption wavelength of the magenta dye M1. Between the wavelength and the maximum absorption wavelength of the cyan dye C1 and separated from each other by 30 nm or more, and the maximum absorption wavelength of the cyan dye C2 is longer than the maximum absorption wavelength of the cyan dye C1. The wavelength may be within a range of 30 nm or more and 100 nm or less from the maximum absorption wavelength of the cyan dye C1.

  According to another aspect of the present invention, there is provided a first thermal transfer sheet having a yellow dye layer containing a yellow dye Y1, a magenta dye layer containing a magenta dye M1, and a cyan dye layer containing a cyan dye C1, A second thermal transfer sheet having a yellow dye layer containing dye Y2, a magenta dye layer containing magenta dye M2, and a cyan dye layer containing cyan dye C2, the maximum absorption of said yellow dyes Y1 and Y2. The wavelengths are both in the range of 400 nm to 500 nm, the maximum absorption wavelengths of the magenta dyes M1 and M2 are both in the range of 500 nm to 600 nm, and the maximum absorption wavelengths of the cyan dyes C1 and C2 are , Both in the range of 600 nm to 700 nm, and the yellow dye Y1 The maximum absorption wavelengths of the magenta dye M1 and the cyan dye C1 are at least 80 nm apart from each other, and the maximum absorption wavelength of the yellow dye Y2 is the maximum absorption wavelength of the yellow dye Y1 and the maximum absorption wavelength of the magenta dye M1. Between the maximum absorption wavelength of the magenta dye M1 and the maximum absorption wavelength of the cyan dye C1, and the maximum absorption wavelength of the magenta dye M2 is 30 nm or more from each. The maximum absorption wavelength of the cyan dye C2 is longer than the maximum absorption wavelength of the cyan dye C1 and is within a range from 30 nm to 100 nm from the maximum absorption wavelength of the cyan dye C1. It is characterized by.

  According to the method of manufacturing a print of the present invention, a high-quality print excellent in color reproducibility can be manufactured while gradation expression is smooth because the sublimation transfer method is employed. The same effect can be obtained by using the combination of the thermal transfer sheet of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram of an apparatus for performing a method for manufacturing a printed matter according to an embodiment of the present invention. 6 is a graph illustrating an example of a spectral density of each wavelength of a first image P1. It is a graph which shows an example of the spectral density for every wavelength of the 2nd image P2. 5 is a graph illustrating an example of a spectral density for each wavelength of a print object P formed by superimposing a first image P1 and a second image P2. 5 is a graph illustrating an example of a spectral density for each wavelength of a print object P formed by superimposing a first image P1 and a second image P2. FIG. 2 is a schematic cross-sectional view of an example of a thermal transfer sheet for an object to be transferred.

1. Hereinafter, a method for manufacturing a printed matter according to an embodiment of the present invention will be described in detail.

  FIG. 1 is a configuration diagram of an apparatus for carrying out a method for manufacturing a printed matter according to an embodiment of the present invention. The apparatus shown in FIG. 1 is an example of an apparatus for performing the method for manufacturing a print according to the embodiment of the present invention, and the present invention is not limited to this apparatus.

1-1. Preparation Step As shown in the configuration diagram of the apparatus 100 shown in FIG. 1, in the method for manufacturing a printed matter according to the present embodiment, the transfer object 10, the heat transfer sheet 20 for the transfer object, the A step of preparing the thermal transfer sheet for an intermediate transfer medium 40 is performed.

  The specific configurations of the transfer object 10, the transfer object heat transfer sheet 20, the intermediate transfer medium 30, and the intermediate transfer medium heat transfer sheet 40 prepared in this step are not particularly limited. An example of each specific configuration will be described later.

1-2. First Image Forming Step Next, as shown in the configuration diagram of the apparatus 100 shown in FIG. 1, in the method of manufacturing a print according to the present embodiment, the transfer target 10 A step of forming a first image P1 is performed using the thermal head H1 and the thermal transfer sheet 20 for an object to be transferred.

  FIG. 2 is a graph illustrating an example of the spectral density of each wavelength of the first image P1.

  For example, a yellow dye layer containing a yellow dye Y1, a magenta dye layer containing a magenta dye M1, and a cyan dye layer containing a cyan dye C1 are provided on the thermal transfer sheet 20 for a transfer target, and these dye layers are used. FIG. 2 shows an example of the spectral density of each wavelength of the first image P1 when the first image P1 of solid black is formed. In addition, in order to make the description easy to understand, an example is given in which the first image P1 is solid black, but the first image P1 is not limited to this, and is intended to be finally manufactured. The image P is an image formed by using the yellow dye Y1, the magenta dye M1, and the cyan dye C1 on the transfer-target thermal transfer sheet 20 based on a preset color table.

  The measurement of the spectral density for each wavelength of the first image P1 is not particularly limited, and can be measured using a commercially available spectral densitometer. The spectral densities in FIG. 2 and FIGS. 3 and 4 shown below are measured using i1i02 (X-rite spectral densitometer).

1-3. Second Image Forming Step On the other hand, as shown in the configuration diagram of the apparatus 100 shown in FIG. 1, in the method for manufacturing a printed matter according to the present embodiment, the intermediate transfer medium A step of forming a second image P2, which is the reverse of the first image P1, on the thermal head H2 and the thermal transfer sheet 40 for an intermediate transfer medium is performed on the intermediate image P2.

  FIG. 3 is a graph showing an example of the spectral density of each wavelength of the second image P2.

  Here, for example, the thermal transfer sheet 40 for an intermediate transfer medium is provided with a yellow dye layer containing a yellow dye Y2, a magenta dye layer containing a magenta dye M2, and a cyan dye layer containing a cyan dye C2. FIG. 3 shows an example of the spectral density of each wavelength of the second image P2 when the second image P2 of solid black is formed using the layer. Note that, as in the case of the first image P1, for ease of explanation, the second image P2 is also described as being solid black, but the second image P2 is not limited thereto. , The reverse image of the print P to be finally manufactured, and based on a preset color table, the yellow dye Y2, the magenta dye M2, and the cyan dye C2 in the thermal transfer sheet 40 for the intermediate transfer medium. Is an image formed by.

1-4. Transfer (Overlay) Step Next, as shown in the configuration diagram of the apparatus 100 shown in FIG. A step of transferring the upper second image P2 onto the first image P1 on the transfer object 10 is performed, and a desired print P is formed.

  FIG. 4 is a graph showing an example of the spectral density for each wavelength of the print P formed by superimposing the first image P1 and the second image.

  FIG. 4 shows an example of the spectral density for each wavelength of the print formed by the print manufacturing method according to the present embodiment. As shown in FIG. 4, according to the method for manufacturing a print according to the present embodiment, the first image P <b> 1 formed on the transfer target 10 by the transfer target thermal transfer sheet 20 and the thermal transfer for the intermediate transfer medium Since the print P is formed by superimposing the second image P2 formed on the intermediate transfer medium 30 by the sheet 40, the spectral density of the print P for each wavelength is naturally the first image P1. And the spectral density of the second image P2 (FIG. 3) are superimposed. Therefore, as shown in FIG. 2 and FIG. 3, the Y1, M1, and C1 dyes contained in the respective dye layers (Y, M, and C) of the thermal transfer sheet 20 for the medium to be transferred are transferred to the thermal transfer sheet for the intermediate transfer medium. By making the maximum absorption wavelengths of the Y2 dye, M2 dye and C2 dye contained in the respective dye layers (Y, M, C) of the sheet 40 different, only the thermal transfer sheet 20 for the medium to be transferred or the intermediate transfer medium is used. The valley of the spectral density of each color, which is generated when only the thermal transfer sheet 40 is formed, can be filled, and the color reproducibility can be remarkably improved.

  According to the above example, the finally formed print P contains six dyes of yellow dyes Y1, Y2, magenta dyes M1, M2, and cyan dyes C1, C2. . In transferring the six colors, it is also possible to form six dye layers each containing the dyes of the six colors on the thermal transfer sheet for a transferred body, and to form a print using the thermal transfer sheet for a transferred body. However, in this case, thermal damage from the thermal head is applied to the object to be transferred six times, and a problem such as fusion may occur. It is also possible to provide the dye layers of the six colors on a thermal transfer sheet for an intermediate transfer medium and perform transfer to a transfer target using the intermediate transfer medium. In this case, however, the intermediate transfer medium is transferred six times. Re-transfer to the transfer object is performed, and the completed print has a six-layer structure, and a large gap is generated between the first layer and the sixth layer, and the image may be blurred. In order to avoid image blurring, it is conceivable to transfer six colors to the receiving layer of one intermediate transfer medium, but in this case, a problem of catalyst fading may occur. Further, a yellow dye layer containing both yellow dyes Y1 and Y2, a magenta dye layer containing both magenta dyes M1 and M2, and a cyan dye layer containing both cyan dyes C1 and C2 are formed on the thermal transfer sheet for a transfer target. It is also possible to form a print using this thermal transfer sheet for a transfer-receiving member, but in this case, the amounts of the two dyes contained in each dye layer are independently determined by the amount of heat at the time of transfer. Since the adjustment cannot be performed, the valley generated between the maximum absorption wavelengths of the respective dyes can be filled, but the color reproducibility is not good. On the other hand, according to the method for forming a printed matter according to the present embodiment, when forming a desired printed matter P, as described above, the first image P1 directly formed on the transfer receiving body 10 and the intermediate transfer medium 30 are interposed. And the second image P2 formed by the above-described process, the thermal damage to the transfer receiving body is minimized, and the number of times of retransfer from the intermediate transfer medium is also minimized, while the spectral densities are different from each other. Can be used, so that the color reproducibility can be improved by separately and independently adjusting the amount of each dye depending on the amount of heat at the time of transfer.

  Here, in the above example, the dyes (Y1, M1, and C1) included in the respective color dye layers provided on the thermal transfer sheet 20 for the transfer-receiving member and the thermal transfer sheet 40 for the intermediate transfer medium are provided. The dyes (Y2, M2, and C2) contained in the respective color dye layers are different from each other. However, in the method of forming a printed material according to the present embodiment, the dyes do not necessarily need to be different, and may be the same. A dye may be used, that is, Y1 = Y2, M1 = M2, and C1 = C2.

  Even in this case, in the method for manufacturing a printed material according to the present embodiment, the first image P1 formed on the transfer body 10 by the transfer body thermal transfer sheet 20 and the thermal transfer sheet 40 for the intermediate transfer medium are formed. Thus, the print P is formed by superimposing the second image P2 formed on the intermediate transfer medium 30.

  FIG. 5 is a graph showing an example of the spectral density for each wavelength of a print P formed by superimposing the first image P1 and the second image.

  Here, since the first image P1 and the second image P2 are images formed by a dye layer containing the same dye, their spectral densities are as shown in FIG. 2, and the same images are superimposed. As shown in FIG. 5, the printed matter P completed in the above has a higher density.

  As described above with reference to the specific examples, according to the method for manufacturing a printed matter according to the present embodiment, the first image directly formed on the transfer target body and the first image via the intermediate transfer medium A second image superimposed on the image to form a final print, a dye contained in a dye layer of the thermal transfer sheet for a transfer medium used to form the first image, and a second image. The combination of the dyes contained in the dye layer in the thermal transfer sheet for an intermediate transfer medium used for forming an image can be freely selected, and the amount of the dye contained in each dye layer can be adjusted independently. Therefore, the color reproducibility and density of the finally completed print can be improved by the selection method, that is, the combination, and further by adjusting the density of the image formed using each dye layer. It becomes possible.

2. What is Prepared in the Method for Producing a Printed Object According to the Present Embodiment The object to be transferred, the thermal transfer sheet for the object to be transferred, and the intermediate transfer medium which are prepared in the method for producing a printed object according to the present embodiment described above. And the configuration of the thermal transfer sheet for an intermediate transfer medium will be described.

2-1. Transfer Target The transfer target prepared in the method for manufacturing a printed material according to the present embodiment is not particularly limited, and a conventionally known transfer member used in a sublimation type thermal transfer system such as a card base material or a thermal transfer image receiving sheet. A transfer member can be appropriately selected and used.

2-2. Thermal transfer sheet for transfer object and thermal transfer sheet for intermediate transfer medium The structure of the thermal transfer sheet for the transfer object itself prepared in the method for producing a printed matter according to the present embodiment is not particularly limited, and is a sublimation type. A conventionally known thermal transfer sheet used for the thermal transfer method can be appropriately selected and used.

  Further, the structure of the thermal transfer sheet for the intermediate transfer medium itself prepared in the method for manufacturing a printed matter according to the present embodiment is not particularly limited, and a conventionally known thermal transfer sheet used in a sublimation type thermal transfer system may be appropriately used. Can be selected and used.

  In other words, the difference between the thermal transfer sheet for the medium to be transferred and the thermal transfer sheet for the intermediate transfer medium prepared in the present embodiment is used for the purpose of forming an image on the medium to be transferred. The difference is whether or not it is used to form an image on a medium, and there is no difference in the structure itself. Therefore, the thermal transfer sheet for an object to be transferred will be described below, but the present invention can be applied to a thermal transfer sheet for an intermediate transfer medium as it is.

  FIG. 6 is a schematic cross-sectional view of an example of the thermal transfer sheet for an object to be transferred.

  As shown in FIG. 6, the thermal transfer sheet 20 for a transfer target includes a substrate 21, a dye layer 22 located on one surface of the substrate 21, and a back layer located on the other surface of the substrate 21. 23, and the dye layer 22 may have a structure in which a yellow dye layer 22Y, a magenta dye layer 22M, and a cyan dye layer 22C are arranged face-sequentially.

  The material and the thickness of the base material 21 and the back layer 23 constituting the thermal transfer sheet 20 for the transfer object are not particularly limited, and the base material and the back layer in the conventionally known heat transfer sheet are appropriately selected. Can be used.

  The dye layer 22 of the thermal transfer sheet 20 for a transfer medium contains a sublimable dye and a binder.

  The sublimable dye is not particularly limited and may be appropriately selected from conventionally known sublimable dyes, and those having good characteristics as a printing material, for example, having a sufficient coloring density, Those which do not discolor by light, heat, temperature, etc. are preferred, and are diarylmethane dyes, triarylmethane dyes, thiazole dyes, merocyanine dyes, pyrazolone dyes, methine dyes, indoaniline dyes, acetophenone azomethine, and pyrazoloazomethine. Azomethine dyes such as imidazole azomethine, imidazoazomethine and pyridone azomethine, xanthene dyes, oxazine dyes, cyanostyrene dyes such as dicyanostyrene and tricyanostyrene, thiazine dyes, azine dyes, acridine dyes, benzeneazo Dyes, pyridoneazo, thio Azo dyes such as azo azo, isothiazole azo, pyrrole azo, pyrazole azo, imidazole azo, thiadiazole azo, triazole azo and disazo, spiropyran dyes, indolinospiropyran dyes, fluoran dyes, rhodamine lactam dyes, naphthoquinone dyes, Examples include anthraquinone dyes and quinophthalone dyes. More specifically, red dyes such as Disperse Red 60, Disperse Violet 26, CeresRed 7B, Samaron F3BS, yellow dyes such as Disperse Yellow 231, PTY-52, Macrolex Yellow 6G, solvent blue 63, wax Sorin Blue AP-FW, Holon Brilliant Blue SR, MS Blue 100, C.I. I. Blue dyes such as Solvent Blue 22 can be exemplified.

  As the binder resin for supporting the sublimable dye, for example, cellulose resins such as ethyl cellulose resin, hydroxyethyl cellulose resin, ethyl hydroxy cellulose resin, methyl cellulose resin, cellulose acetate resin, polyvinyl alcohol, polyvinyl acetate, polyvinyl butyral, and polyvinyl Examples thereof include vinyl resins such as acetal and polyvinylpyrrolidone, acrylic resins such as poly (meth) acrylate and poly (meth) acrylamide, polyurethane, polyamide, and polyester. Among these, resins such as cellulose resin, vinyl resin, acrylic resin, polyurethane, and polyester are preferable in terms of heat resistance, dye migration, and the like.

  The dye layer 22 may contain additives such as inorganic particles and organic particles. Examples of the inorganic particles include carbon black, silica, alumina, titanium dioxide, and molybdenum disulfide, and examples of the organic particles include polyethylene wax. The dye layer 22 may contain a release agent. Examples of the release agent include silicone oil, phosphate ester, and fluorine-based material. Further, the dye layer 22 may contain various curing agents such as isocyanate, epoxy resin and carbodiimide.

  Here, in the method for producing a printed matter according to the present embodiment, the dye in the dye layer provided on the thermal transfer sheet for the transfer-receiving material and the dye in the dye layer provided on the thermal transfer sheet for the intermediate transfer medium are used. By taking into account the relationship between the dye and the maximum absorption wavelength of each dye, the color reproducibility and density are improved when the images formed by these two thermal transfer sheets are superimposed. Therefore, the relationship between the dyes contained in the dye layers of the thermal transfer sheet for the medium to be transferred and the thermal transfer sheet for the intermediate transfer medium, in other words, the combination is important.

  For example, the thermal transfer sheet for a transfer medium has a yellow dye layer containing a yellow dye Y1, a magenta dye layer containing a magenta dye M1, and a cyan dye layer containing a cyan dye C1, and the thermal transfer sheet for an intermediate transfer medium has a yellow color. In the case of having a yellow dye layer containing the dye Y2, a magenta dye layer containing the magenta dye M2, and a cyan dye layer containing the cyan dye C2, the maximum absorption wavelength of the yellow dyes Y1 and Y2 is as follows. The maximum absorption wavelengths of the magenta dyes M1 and M2 are both within the range of 500 nm to 600 nm, and the maximum absorption wavelengths of the cyan dyes C1 and C2 are both 600 nm. The yellow dye Y1 and the magenta dye M1 And cyan dyes C1, the maximum absorption wavelength of each are preferably spaced apart from one another 80nm or more. It is also preferable that the maximum absorption wavelengths of the yellow dye Y2, the magenta dye M2, and the cyan dye C2 are 80 nm or more apart from each other. Further, it is more preferable that the maximum absorption wavelengths of the yellow dye Y1, the yellow dye Y2, the magenta dye M1, the magenta dye M2, the cyan dye C1, and the cyan dye C2 are respectively 30 nm or more apart from each other.

  Further, the maximum absorption wavelength of the yellow dye Y2 is between the maximum absorption wavelength of the yellow dye Y1 and the maximum absorption wavelength of the magenta dye M1, and the maximum absorption wavelength of the magenta dye M2 is equal to that of the magenta dye M1. The maximum absorption wavelength is between the maximum absorption wavelength of the cyan dye C1 and the maximum absorption wavelength of the cyan dye C1 and is apart from the maximum absorption wavelength by 30 nm or more. The maximum absorption wavelength of the cyan dye C1 is longer than the maximum absorption wavelength of the cyan dye C1. Therefore, it is more preferable that the relationship be within a range from 30 nm to 100 nm from the maximum absorption wavelength of the cyan dye C1.

  Examples of the combination of the yellow dyes Y1 and Y2 satisfying the above relationship include a combination of Disperse Yellow 201 and a dye represented by the following structural formula (1).

  Examples of the combination of the magenta dyes M1 and M2 satisfying the above relationship include, for example, a combination of a dye represented by the following structural formula (2) and a dye represented by the following structural formula (3). Can be.

  Examples of the combination of the cyan dyes C1 and C2 satisfying the above relationship include, for example, a combination of Disperse Blue 354 and a dye represented by the following structural formula (4).

  One of the above combinations of the yellow dye, magenta dye and cyan dye may be used for the dye layer of the thermal transfer sheet for the medium to be transferred, and the other may be used for the dye layer of the thermal transfer sheet for the intermediate transfer medium. Further, the above combinations are merely examples, and other dyes can be used.

2-3. Intermediate Transfer Medium The intermediate transfer medium prepared in the method for producing a printed material according to the present embodiment is not particularly limited, and a conventionally known intermediate transfer medium used in a sublimation-type thermal transfer system may be appropriately selected and used. Can be. The intermediate transfer medium may have, for example, a structure in which a release layer, a primer layer, a protective layer, and a receiving layer are laminated in this order on one surface of a substrate, and these layers are not particularly limited. Never.

DESCRIPTION OF SYMBOLS 10 ... Transfer object 20 ... Transfer object thermal transfer sheet 30 ... Intermediate transfer medium 40 ... Intermediate transfer medium thermal transfer sheet P1 ... First image P2 ... Second image P ... Printed object 100 ... Printed object forming apparatus

Claims (5)

An object to be transferred, a thermal transfer sheet for the object to be transferred, an intermediate transfer medium, and a step of preparing a thermal transfer sheet for the intermediate transfer medium,
Forming a first image on the transfer object using the transfer object thermal transfer sheet;
Forming, on the intermediate transfer medium, a second image obtained by inverting the first image using the thermal transfer sheet for the intermediate transfer medium;
Transferring the second image on the intermediate transfer medium onto the first image on the transfer target. The thermal transfer sheet for a transferred body has a yellow dye layer containing a yellow dye Y1, a magenta dye layer containing a magenta dye M1, and a cyan dye layer containing a cyan dye C1.
The thermal transfer sheet for an intermediate transfer medium has a yellow dye layer containing a yellow dye Y2, a magenta dye layer containing a magenta dye M2, and a cyan dye layer containing a cyan dye C2,
The maximum absorption wavelength of the yellow dye Y1 and the maximum absorption wavelength of the yellow dye Y2 are different,
The maximum absorption wavelength of the magenta dye M1 and the maximum absorption wavelength of the magenta dye M2 are different,
The method according to claim 1, wherein the maximum absorption wavelength of the cyan dye C1 is different from the maximum absorption wavelength of the cyan dye C2. The thermal transfer sheet for a transferred body has a yellow dye layer containing a yellow dye Y1, a magenta dye layer containing a magenta dye M1, and a cyan dye layer containing a cyan dye C1.
The thermal transfer sheet for an intermediate transfer medium has a yellow dye layer containing a yellow dye Y2, a magenta dye layer containing a magenta dye M2, and a cyan dye layer containing a cyan dye C2,
The maximum absorption wavelength of the yellow dye Y1 and the maximum absorption wavelength of the yellow dye Y2 are the same,
The maximum absorption wavelength of the magenta dye M1 is the same as the maximum absorption wavelength of the magenta dye M2,
The method according to claim 1, wherein the maximum absorption wavelength of the cyan dye C1 is the same as the maximum absorption wavelength of the cyan dye C2. The maximum absorption wavelengths of the yellow dyes Y1 and Y2 are both in the range of 400 nm or more and 500 nm or less,
The maximum absorption wavelength of each of the magenta dyes M1 and M2 is in the range of 500 nm or more and 600 nm or less,
The maximum absorption wavelength of each of the cyan dyes C1 and C2 is in a range of 600 nm or more and 700 nm or less,
The maximum absorption wavelength of each of the yellow dye Y1, the magenta dye M1, and the cyan dye C1 is 80 nm or more,
The maximum absorption wavelength of the yellow dye Y2 is between the maximum absorption wavelength of the yellow dye Y1 and the maximum absorption wavelength of the magenta dye M1, and is apart from each by 30 nm or more,
The maximum absorption wavelength of the magenta dye M2 is between the maximum absorption wavelength of the magenta dye M1 and the maximum absorption wavelength of the cyan dye C1, and is apart from each by 30 nm or more,
The maximum absorption wavelength of the cyan dye C2 is longer than the maximum absorption wavelength of the cyan dye C1, and is within a range from 30 nm to 100 nm from the maximum absorption wavelength of the cyan dye C1. The method for producing a printed matter according to claim 2. A first thermal transfer sheet having a yellow dye layer containing a yellow dye Y1, a magenta dye layer containing a magenta dye M1, and a cyan dye layer containing a cyan dye C1;
A second thermal transfer sheet having a yellow dye layer containing a yellow dye Y2, a magenta dye layer containing a magenta dye M2, and a cyan dye layer containing a cyan dye C2,
The maximum absorption wavelengths of the yellow dyes Y1 and Y2 are both in the range of 400 nm or more and 500 nm or less,
The maximum absorption wavelength of each of the magenta dyes M1 and M2 is in the range of 500 nm or more and 600 nm or less,
The maximum absorption wavelength of each of the cyan dyes C1 and C2 is in a range of 600 nm or more and 700 nm or less,
The maximum absorption wavelength of each of the yellow dye Y1, the magenta dye M1, and the cyan dye C1 is 80 nm or more,
The maximum absorption wavelength of the yellow dye Y2 is between the maximum absorption wavelength of the yellow dye Y1 and the maximum absorption wavelength of the magenta dye M1, and is apart from each by 30 nm or more,
The maximum absorption wavelength of the magenta dye M2 is between the maximum absorption wavelength of the magenta dye M1 and the maximum absorption wavelength of the cyan dye C1, and is apart from each by 30 nm or more,
The maximum absorption wavelength of the cyan dye C2 is longer than the maximum absorption wavelength of the cyan dye C1, and is within a range from 30 nm to 100 nm from the maximum absorption wavelength of the cyan dye C1. A combination of a first thermal transfer sheet and a second thermal transfer sheet.

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