JPH10287041A - Calibration sheet and its formation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily form a calibration sheet that can be utilized to study a package design, etc., by overlapping an image formation body having a color image of a printing pattern alone recorded on a transparent base material, and an image formation body having a back image alone recorded on a transparent base material, thereby forming the calibration sheet. SOLUTION: In order to form a calibration sheet, first, a color image 13 at the side of a front face is output by a printer on an ink-receiving layer 12 of a recording sheet, thereby forming an image formation body 1. Then, an image formation body 2 is produced with the use of a thermal melt transfer printer. The image formation body 1 has a transparent base material 11, the ink-receiving layer 12 and the image 13, and is provided with a curl-preventing, antistatic layer 14 upon necessities. Meanwhile, the image formation body 2 has a similar transparent base material 21 and an image 23. The image 23 is an image of a back or a background of the image 13. The image formation bodies 1, 2 have registration flyers or alignment pin holes. The image formation bodies 1, 2 are overlapped, thereby finishing the calibration sheet.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a proof sheet combining a color image and a white background image (concealment layer) used for studying package design in a packaging industry or a design planning department, and a method for producing the same. It is intended to provide. In particular, an image such as a full-color image output by an inkjet printer, a sublimation transfer printer, a thermal fusion transfer printer or an electrophotographic printer on one transparent substrate, and an image in which a background image is output by thermal fusion transfer on the other substrate The present invention relates to a calibration sheet to be used for superimposing formed bodies and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, when proofreading layouts, images, colors, and the like of packaging designs, etc., test printing and the like have been performed by an actual printing machine after a plate making process, but with the development of media capable of outputting full color, Recently, various types of media have been used for the test print to reduce the cost and time of plate making and printing. However, since there is no transparent recording sheet capable of outputting a single color image such as white as a background image of the front side color image, underprinting white on a transparent film is usually performed for a soft packaging material. In the field, the use of these media was also limited.

[0003] Output means of a full-color image include a wire dot recording system, a thermosensitive coloring recording system, a heat-sensitive melt transfer recording system, a thermosensitive sublimation transfer recording system, an electrophotographic recording system,
Various systems such as an ink jet recording system have been put to practical use. Among them, the ink jet recording system has excellent features such as low printing cost, inexpensive and compact apparatus, high-speed recording without noise, large size, high resolution, and the like. For this reason, attention has been paid to the use as a printer for quickly and accurately outputting image information such as characters and figures produced by a computer or the like. Further, since colorization is easy and the pattern is clear, there is a growing demand for recording image information produced by a computer on a transparent recording sheet by an ink jet printer and using the same as a proofreading document. on the other hand,
Sublimation transfer recording, which can form a clear image with abundant gradations, is also highly evaluated particularly for use in forming high-quality full-color images. However, the sublimation transfer type printer is A3 size or A3 size with a register mark around the A3 size.
The limit is up to 3 registration marks. To output A2 size or A2 registration mark size with one sheet, it is necessary to make a specially large printer. Therefore, the sublimation transfer is used only for certain uses having a small picture area. In this regard, an ink jet printer that does not use an ink ribbon has an advantage that the recording size can be increased. Further, in the thermal fusion transfer system, there is a printer which can output up to A0 size, but it is very expensive. Further, an electrophotographic printer has a high recording speed, but is still expensive.

[0004]

As a means for forming a white image as a background image of a packaging design or the like, a heat-sensitive fusion transfer recording system using a white ink ribbon attracts attention because it can reproduce high concealing properties and whiteness. Have been. However, a recording sheet capable of simultaneously recording a large-size full-color image and a white image has not been realized for the purpose despite the need in the past. Accordingly, the present invention utilizes the excellent characteristics of the ink jet recording system, the sublimation transfer system, the heat-sensitive melting transfer system, and the electrophotographic system instead of outputting to one recording sheet in order to satisfy the requirements of these packaging designs and the like. It was researched to output an image formed body on which a full-color image and the like were recorded and a white image formed by the heat-sensitive fusion transfer method on separate recording sheets and to perform calibration by superimposing them. is there.

[0005]

A first aspect of the present invention for solving the above-mentioned problems is to record only a color image of a printing pattern consisting of a color image and a bright background image on a transparent substrate. A calibration sheet, wherein the image forming body (1) and the image forming body (2) on which only the back image is recorded on a transparent substrate by a thermal fusion transfer method are aligned and superposed. ,It is in. Since such a calibration sheet is used, it can be used for calibration by outputting a normal surface image and a background image on another substrate and overlapping them.

A second aspect of the present invention for solving the above problems is a step of preparing an image forming body (1) in which a color image is recorded by being output from an image output printer on a transparent base material. A step of preparing an image-formed body (2) in which a light-color monochrome image serving as a background image of a color image is output on a transparent substrate by a thermal fusion transfer printer, and the two image-formed bodies are aligned and superposed. And a method for producing a calibration sheet. Since this is a method for manufacturing a calibration sheet, a calibration sheet can be easily manufactured by outputting a color image on the front side of a normal print pattern and a single-color background image on another substrate and overlapping them. it can.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing the calibration sheet of the present invention. In FIG. 1, the calibration sheet of the present invention includes an image forming body (1) and an image forming body (2). The image forming body (1) has a transparent substrate 11, an ink receiving layer 12 formed thereon, and an image 13 formed in the ink receiving layer. On the opposite surface, an anti-curl / anti-static layer 14 that also serves to prevent curl and anti-static of the substrate
Is provided. If necessary, an antistatic agent may be added to the ink receiving layer 12 or an antistatic layer may be provided outside the ink receiving layer. The image forming body (2) also has a transparent substrate 21 and an image 23. The image 23 is an image behind or as a background of the image 13, and is usually a white light-colored single-color image. However, a color material layer having a metallic luster such as gold, silver, or platinum, or a color of a metallic material And those formed by vacuum evaporation.

FIG. 2 is a sectional view showing another embodiment of the calibration sheet of the present invention. In FIG. 2, the calibration sheet of the present invention includes an image forming body (1) and an image forming body (2). Although the contents of the image forming body (1) and the image forming body (2) are the same as in FIG. 1, in FIG. 2, the images of the image forming body (1) and the image forming body (2) face each other in a mirror image relationship. The difference is that they are superimposed. In each case of the calibration, since the observation is performed from the side of the arrow 15 in both cases, it is necessary to observe the same symbol in both the case of FIG. 1 and the case of FIG. Accordingly, the image 13 of the image forming body (1) in FIG. 1 is a front side recording in which the color is sequentially recorded from the lower side on the surface of the base material, whereas the image forming body (1) in FIG. It is necessary to perform reverse recording in which reverse recording is performed sequentially from the upper color. Although not shown, the image 1 of the image forming body (1)
3 can be made on the inner surface and the image 23 of the image forming body (2) on the outer surface, or both the image forming body (1) and the image of the image forming body (2) can be made on the outer side. In any case, it is obvious that the sheet functions as a proof sheet.

FIG. 3 is a cross-sectional view showing a process for producing the calibration sheet of the present invention. First, as shown in FIG. 3A, an ink jet method is applied on the ink receiving layer of the recording sheet 1.
An image forming body (1) is produced by outputting a color image on the front side by using any one of a printer selected from a sublimation transfer method, a heat-sensitive transfer method, and an electrophotographic method. The output of the image forming body (1) is obtained by scanning the original document of each plate constituting the image forming body (1) or controlling the ink nozzles or the thermal head of the printer based on the image data scanned in advance. Are sequentially output. Further, in the electrophotographic method, each color image obtained by sequentially separating the color of a document is superimposed and formed. Then, FIG.
As in (B), an image forming body (2) is prepared using a hot-melt transfer printer. The image forming body (2) normally outputs a white or metallic glossy single-color image behind the image forming body (1) in the same manner on the basis of a copy original. The output of the image forming body (2) is performed by a hot-melt transfer printer because a hiding power is required. In order to output such a background image, the hot-melt transfer method obtains a high density and is suitable. Because there is. The image forming body (1) and the image forming body (2) are provided with register marks for alignment or pin holes for alignment, whereby both image forming bodies are superposed (FIG. 3). (C)).

The image forming body (1) and the image forming body (2)
If there is no relative displacement between the two images, the purpose as a calibration sheet can be achieved. However, both images may be overlapped and integrated with a known adhesive or adhesive 26 to be used. At that time, the adhesive / adhesive must be transparent. The image forming unit for laminating, with the beginning either of the ink-receiving surface and the opposite side to the release paper of the image forming body allowed to adhesive layer formed, after printing, peel off the release paper, other image It can be superposed and integrated with the formed body. Examples of such an adhesive resin include a rubber-based resin, an acrylic resin, and a silicone-based adhesive resin.
EVA-based, PVC-based, rubber-based, and vinegar-based are listed. Any of them can be used in the present invention, and an acrylic-based pressure-sensitive adhesive is particularly preferred. In the present invention, the adhesive resin is preferably used as an organic solvent solution having a solid content of about 5 to 40% by weight such as toluene, xylene, methyl ethyl ketone, ethyl acetate, and butyl acetate. Further, as a method of superimposing and integrating, the image forming body (1) and / or
Alternatively, a heat-sealing resin layer may be provided on the surface opposite to the image forming surface of the image forming body (2), and may be integrated by a thick attachment means such as a heat roller. Examples of the heat-sealing resin include known EVA-based, polyester-based, and nylon-based resins.

The output of the image forming body (2) is usually outputted to a substrate separate from the ribbon using a white ink ribbon or to a substrate having ink receptivity. May be performed. FIG. 4 shows one of the co-wound ribbons.
It is sectional drawing which shows a form. The co-wound ribbon of FIG. 4 is referred to as a co-wound ribbon for convenience. When outputting the image forming body (2) of the calibration sheet of the present invention from the co-wound ribbon,
The ribbon shown in FIG. 4 can be used. In the co-wound ribbon, the white ink layer 22 is formed on the base material 31 via the mat layer 28, and the base material 31 and the base material 21 to which the white ink layer is transferred can be peeled off by the temporary adhesive layer 24. Adhered to. It is preferable to provide a heat-resistant layer 25 on a portion of the substrate 31 where the thermal head contacts.
This type of ribbon is called a co-wound ribbon because the base materials 21 and 31 are integrated into a product form.

FIG. 5 is a sectional view showing a state after an image is output to the co-wound ribbon. The white ink melted by the thermal head has transferred to the substrate 21 as a white image 22 '. This is the image 23 of the image forming body (2). The ink ribbon substrate 31 is peeled and removed together with the remaining ink layer 22 and the temporary adhesive layer 24.

FIG. 6 is a sectional view showing another form of the co-wound ribbon. The co-wound ribbon of FIG. 6 is referred to as a co-wound ribbon for convenience. Image Formed Body of Calibration Sheet of the Present Invention (2)
Is output from the co-wound ribbon, the ribbon shown in FIG. 6 can be used. In the co-wound ribbon, a white ink layer 22 is formed on a base material 31 via a release layer 32. Further, the base material 31 and the base material 21 for transferring the white ink layer form a temporary adhesive layer and an ink receiving layer. 27 so as to be peelable. It is preferable to provide a heat-resistant layer 25 on a portion of the substrate 31 where the thermal head contacts. In the ribbon of this type, the temporary adhesive layer also functions as an ink receiving layer, so that the ink layer after transfer can be provided with high abrasion resistance. This ribbon may be manufactured by a method in which a temporary adhesive layer and ink receiving layer 27 is provided on the base material 21 and then bonded to a white ribbon. FIG. 7 is a cross-sectional view illustrating a state after an image is output to the co-wound ribbon. The white ink melted by the thermal head has transferred to the substrate 21 as a white image 22 '. This is the image forming body (2)
Image 23. The ink ribbon substrate 31 is peeled and removed together with the remaining ink layer 22. In this case, the temporary adhesive layer and ink receiving layer remains on the substrate 21 side. In the case where the temporary adhesive layer also functions as the ink receiving layer, a polyester resin or urethane resin having a Tg of 60 ° C. or less is preferable.

In FIG. 3, the ink receiving layer 12 of the substrate 11 on which the image of the image forming body (1) is formed can be various types of ink receiving layers. For example, when the ink-receiving layer is an ink-receiving layer mainly composed of a water-soluble resin or a water-absorbing resin, an image can be formed by an inkjet printer, and the ink-receiving layer is a polyolefin that receives a sublimable dye. In the case of a sublimation transfer ink receiving layer such as a resin, an image can be formed by a printer using a sublimation transfer ribbon, and in the case where the ink receiving layer is a hot melt transfer ink receiving layer, a hot melt transfer ink ribbon is used. An image can be formed by the printer used.

Hereinafter, the configuration of each part of the calibration sheet of the present invention will be sequentially described. (Substrate) As the transparent substrates 11 and 21 used in the calibration sheet of the present invention, the same substrates as those used in conventional recording sheets can be used as they are. Many of the proofreading sheets of the present invention are used as imitating transparent films for packaging, so that transparency is required. Also,
Since the image 23 behind the image forming body (2) is formed by thermal fusion transfer, the substrate 21 is also required to have heat resistance. In addition, those formed of a thermoplastic plastic having dimensional stability, rigidity, and flexibility are preferable. Specifically, a thickness of about 5 to 250 μm of polyethylene terephthalate resin, polycarbonate resin, acrylic resin, polyvinyl chloride resin, polypropylene resin, polystyrene resin, polyvinyl alcohol resin, polyethylene resin, diacetate resin, triacetate resin, polyimide resin, etc. Preferably, a film or sheet having a thickness of about 50 to 180 μm is used. These transparent substrates 11 and 21 are:
When the adhesion to the ink receiving layer formed on the surface is insufficient, it is preferable to apply a primer treatment or a corona discharge treatment to the surface. Further, an anti-curl or antistatic layer may be provided on the back surface of the substrate 11. Substrates 11 and 2
1 may be a different substrate as long as the heat shrinkage is the same, but when a large calibration sheet is output, the difference in shrinkage between the image forming body (1) and the image forming body (2) As a result, it may be difficult to match the picture pattern over the entire image, and therefore it is preferable to use materials of the same type and thickness as much as possible.

The base material 31 when the image forming body (2) is manufactured from the co-wound ribbon is presumed to be peeled off after the thermal transfer.
Since a white image is formed by thermal fusion transfer, heat resistance is required. In addition, those formed of a thermoplastic plastic having dimensional stability, rigidity, and flexibility are preferable as in the case of the transparent substrates 11 and 21. Specifically, a thickness of about 5 to 250 μm of polyethylene terephthalate resin, polycarbonate resin, acrylic resin, polyvinyl chloride resin, polypropylene resin, polystyrene resin, polyvinyl alcohol resin, polyethylene resin, diacetate resin, triacetate resin, polyimide resin, etc. Preferably, a film or sheet having a thickness of about 50 to 180 μm is used.

(Ink receiving layer) As the ink receiving layer of the image forming body (1), a receiving layer for ink jet recording, a receiving layer for sublimation transfer recording, a receiving layer for hot melt transfer recording, electrophotography Four types of receiving layers for recording are possible. Hereinafter, each of these ink receiving layers will be described sequentially.

Ink jet ink receiving layer The ink jet ink receiving layer is mainly characterized by a mixture of an aqueous water-absorbing resin, a water-soluble resin, and a water-soluble resin having wet heat resistance and low-temperature printability. It is particularly preferable that the mixture is a combination of a water-absorbing polyester resin, polyvinyl alcohol, and polyvinyl pyrrolidone. Aqueous water-absorbent resin is a water-soluble resin that is cross-linked to make it water-absorbent and water-insoluble, and is obtained by coating a water-soluble resin partially cross-linked or grafted. After coating, there is a cross-linking agent or a cross-linked by heating or ionizing radiation. Other examples include copolymers of a hydrophilic monomer and a hydrophobic monomer, such as a water-absorbing alkyd resin, a polyester resin, a polyvinyl acetate resin, a polyvinyl chloride copolymer resin, an NBR resin, and an SB resin.
R resin, polyurethane resin, acrylic resin, polyamide and the like are used alone or as a mixture, copolymer or modified product. The modified product is, for example, a product obtained by copolymerizing or grafting a monomer or oligomer containing a hydroxyl group, a carboxylic acid, a sulfonic acid, a quaternary ammonium salt, or the like to increase the hydrophilicity. Above all, the water-absorbing polyester resin has high adhesion to the substrate, high film strength,
This is particularly preferable because the print section does not have scars on the print roller during transport of the printer, that is, has high wet strength.

The water-soluble resin is soluble in water or a mixed solvent of water and alcohol, and various known resins can be used. For example, polyvinyl alcohol, polyvinylpyrrolidone, poly (meth) acrylic acid, cellulose resins (carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, etc.), polyacrylamide, polyethylene oxide, polyethylene glycol, polyvinyl acetal resins, polyvinyl methyl ether, polyamine And at least one of water-soluble resins such as polyethyleneimine, casein, gelatin, and starch, and / or copolymers thereof, and cation / anion-modified products. Among them, polyvinyl alcohol is particularly preferable because it has excellent ink absorbency, color developability, wet strength, and appropriate solution viscosity.

The water-soluble resin having wet heat resistance and low-temperature printability is a resin that is soluble in water, alcohol or a mixed solvent thereof, and is used in various environments (temperature range: -20 to 50 ° C., humidity range: 10 to 10). (90% RH) is preferable. In particular, those which hardly deteriorate in water absorbency and printability before and after storage under high temperature and high humidity. In addition, those having good printability in each environment, particularly those having almost no decrease in water absorbency and printability in a low temperature environment, and various conventionally known ones are used. For example, polyvinylpyrrolidone, poly (meth) acrylic acid, cellulose resin (M
C, HPMC, HPEC, etc.), water-soluble resins such as polyethylene oxide, polyethylene glycol and / or copolymers thereof, specifically, at least a cation / anion-modified product such as a polyvinylpyrrolidone-vinyl acetate copolymer or the like. One or more are used. Above all, polyvinylpyrrolidone or hydroxypropylmethylcellulose is particularly preferable because it has excellent ink absorbency, printability in a low-temperature and low-humidity environment, and printability after storage in a high-temperature and high-humidity environment.

The ratio of [aqueous water-absorbing resin] to [the sum of the water-soluble resin and the water-soluble resin having wet heat resistance and low-temperature printability] is between 7: 3 and 1: 9, and When,
The ratio of the water-soluble resin having wet heat resistance and low-temperature printing property is used in the range of 1: 9 to 9: 1, particularly preferably the former is 5: 5 to 2: 8, and the latter is 2: 1. 8 to 4 to 6
Range. If the above range is not met, a record that has a good balance of ink drying properties, image clarity, printability in high-temperature, high-humidity and low-temperature, low-humidity environments, and printability after storage in high-temperature, high-humidity environments Sheets cannot be obtained.

In addition, various aqueous polymers such as alkyd resins, polyester resins, polyvinyl acetate resins, polyvinyl acetate resins are used in the above composition for the purpose of improving blocking resistance, coating film strength, adhesion and dye fixability. Copolymer resin, NB
R resin, SBR resin, polyurethane resin, acrylic resin, polyamide and the like are used alone or as a mixture, copolymer or modified product. In particular, to prevent blocking, organic particles having a primary particle diameter of 5 to 80 μm and inorganic particles having a secondary particle diameter of 5 to 20 μm are added to the resin component in an amount of 0.
There is an effect when added in the range of 1 to 10%. If the amount is less than this range, a sufficient effect for preventing blocking cannot be obtained. On the other hand, if the amount is more than this range, the transparency of the ink receiving layer decreases, which is not preferable. In addition, additives, inorganic compounds, and the like that enhance dye fixing properties can be added. In addition, various surfactants, antioxidants, ultraviolet absorbers, antifoaming agents, various types of highly hydrophilic modified oils, and the like can be mixed and used as long as the effects of the present invention are not impaired.

The ink-receiving layer of the composition described above may be formed by various known methods, for example, gravure coat, gravure reverse coat, roll coat, wire bar coat, blade coat, knife coat, air knife coat. , Comma coat, slot die coat, dip coat, and the like. The thickness applied to the substrate using these methods is 0.1 to 50 when dry.
μm, preferably 3 to 30 μm. If the thickness is less than 0.1 μm, the ink absorption is not sufficient, and if it exceeds 50 μm, economic disadvantages increase, that is, the manufacturing cost increases, which is not preferable. In addition, in order to secure the coating amount, the liquid having the same composition may be coated plural times.

Sublimation transfer ink receiving layer The sublimation transfer ink receiving layer is a receiving layer for receiving a sublimable dye on the surface of a substrate. In the case of sublimation transfer, the thermal transfer image-receiving sheet is conveyed into the printer together with the thermal transfer sheet, and heat is applied by the thermal head. When the heat is applied, the dye layer of the thermal transfer sheet and the dye-receiving layer of the thermal transfer image-receiving sheet come into close contact with each other. When the adhesion is low, there is a problem that the dye transferability, that is, the sensitivity is poor. In order to solve this problem, in the case of an image receiving sheet such as a paper base material which does not require transparency, a receiving layer is provided via a foam layer in order to improve sensitivity and density at the time of printing. However, in this case, the entire image receiving sheet loses transparency. Since the calibration sheet of the present invention imitates a transparent material such as a packaging film base material, it needs to be transparent, so that a foamed layer cannot be provided. Therefore, in the present invention, this problem is solved by forming a dye-receiving layer via a non-foamed resin layer plastically deformed by heat and pressure, that is, a low-elastic resin layer, on the surface of the base sheet that is in contact with the thermal head. There are features.

Examples of the resin forming the low elastic resin layer include resins having a low elastic modulus even at a relatively low temperature, and chlorinated polypropylene is most preferable in terms of low melting point, film strength, transparency and the like. Other resins include acrylic resins, vinyl chloride-vinyl acetate copolymer resins, polyurethane resins, ethylene-vinyl acetate copolymer resins, and acrylic-modified ionomer resins, and specific examples thereof. Industrial KF-11, Soken Chemical RE-
4. HV-70, Nipporan 51 made by Nippon Polyurethane
99 and the like. These resins may be used in combination with the above and other resins, but preferably occupy 30% by weight, more preferably 50% by weight or more. The chlorinated polypropylene to be used is not particularly limited. For example, it can be obtained from the market under the trade name of Supercron (manufactured by Sanyo Kokusaku Pulp) or Hardlen (manufactured by Toyo Kasei Kogyo) and used in the present invention.

The low-elastic resin layer is formed by dissolving the resin in an appropriate organic solvent or dispersing the resin in an organic solvent or water, for example, by a gravure printing method or a screen printing method.
It is formed by applying and drying by a forming means such as a reverse roll coating method using a gravure plate. The non-foamed resin layer formed as described above requires 1.0 g / m ² or more, and if it is thinner than this, good printing sensitivity cannot be obtained.
Preferred thickness is ^{3.0g / m 2 ~15g / m 2} .
When the base sheet has poor adhesion to the low elastic resin layer as described above, it is preferable to apply a primer treatment or a corona discharge treatment to the surface thereof.

The ink-receiving layer provided on the low-elasticity resin layer is composed of a varnish mainly composed of a resin which can easily dye a coloring material and, if necessary, various additives such as a release agent. I do. The resin which is easily dyed is used as a homo- or copolymer, anion, or cation-modified product such as vinyl chloride vinyl chloride resin, polyester resin, styrene acrylonitrile resin, polyurethane resin, polyvinyl butyral resin, and styrene resin. In addition, there are polyolefin resin, polyvinyl chloride resin, polyvinyl acetate, polyacrylate, polyamide resin, ionomer, cellulose derivative and the like.
These alone, or a mixture or a copolymer can be used.

Hot-melt transfer ink-receiving layer Many materials are suitable for the hot-melt transfer ink-receiving layer unless they have a property of repelling the hot-melt transfer ink. Specifically, the material itself used as the substrate can be used as the receiving layer, and polyester resin, polycarbonate resin, acrylic resin, polyvinyl chloride resin, polypropylene resin, polystyrene resin, polyvinyl alcohol resin, polyethylene resin, A film or sheet having a thickness of about 5 to 250 μm, preferably about 50 to 180 μm, such as an acetate resin, a triacetate resin, a polyimide resin, and an ethylene-vinyl acetate resin, may be used.

Electrophotographic Ink Receiving Layer For the electrophotographic ink receiving layer, many materials of a transparent substrate having heat resistance and mechanical suitability are suitable as the receiving layer. Specifically, the material itself used as the base material can be used as the receiving layer, and polyester resin, polycarbonate resin, acrylic resin, polypropylene resin, polystyrene resin, polyvinyl alcohol resin, diacetate resin, triacetate resin, polyimide resin Thickness of about 50 to 250 μm, preferably 100 to 180 μm
Film-shaped or sheet-shaped ones.

(Anti-Curl / Antistatic Layer) The same ink-receiving layer may be provided as an anti-curl / antistatic layer on the surface (back surface) of the substrate opposite to the surface on which the ink receiving layer is formed. . For the purpose of curling prevention, it is possible to use the same water-soluble resin as the ink receiving layer on the surface, an acrylic resin, a polyester resin, and the like, and in particular, use an acrylic resin or a modified acrylic resin or a polyester resin. And white ink fixability, blocking resistance,
It is also useful in terms of imparting slip properties. The thickness of the curl prevention layer is preferably about 0.1 to 50 μm when dried, and a method similar to the above-described method for forming the ink receiving layer can be selected. Further, if necessary, an antistatic agent may be added to the ink receiving layer. Further, an antistatic layer may be provided outside the ink receiving layer.

Further, in order to prevent the recording sheet from being contaminated by dust and to ensure the stability of conveyance by a printer, an antistatic layer containing the following antistatic agent can be provided.
As the antistatic agent, conventionally known cations, anions,
Either zwitterionic or nonionic antistatic agents can be used. For example, cationic antistatic agents such as quaternary ammonium salts and polyamine derivatives, anionic antistatic agents such as alkyl phosphates, nonionic antistatic agents such as fatty acid esters, metal oxides, and polymers having conjugated double bonds Materials include. The antistatic layer may be added with the above antistatic agent and a lubricant such as an organic or inorganic filler, and a compounded solution obtained by dissolving or dispersing them in a solvent by a known method, that is, gravure coating, gravure reverse coating. It is formed by applying and drying by a method such as roll coating. The thickness of the antistatic layer is about 0.001 to 0.1 μm when dried.

(Primer Layer) The recording sheet has an ink receiving layer 12 provided on at least one surface of a substrate, and when the adhesion between the substrate and the ink receiving layer is weak, the recording sheet is A primer layer can be provided in between to enhance the adhesion between the ink receiving layer and the substrate. As the resin used for the primer layer, for example, alkyd resin, polyester resin, polyvinyl acetate resin, polyvinyl acetate copolymer resin, NBR resin, SBR resin, polyurethane resin, acrylic resin, polyamide, etc., alone or in a mixture or copolymer Used as a product or a modified product. A denatured product is
For example, those obtained by copolymerizing or grafting a monomer containing a hydroxyl group, a carboxylic acid, or a quaternary ammonium salt to increase the adhesiveness and hydrophilicity.

Further, in order to improve the adhesion of the primer layer and the strength of the coating film, the above resin may be crosslinked with various curing agents, for example, epoxy resin, melamine resin, isocyanate and the like. The method for forming the above-mentioned primer layer,
A method similar to the above-described method for forming the ink receiving layer can be selected.
The thickness of the primer layer is 0.01 to 50 μm when dry.
m, preferably 0.1 to 10 μm. If the thickness is less than 0.1 μm, sufficient performance in adhesiveness is not exhibited, while if it exceeds 10 μm, the end face becomes sticky when the recording sheet is cut, which leads to high production costs. Is not preferred.

When the white image of the image forming body (2) is formed from the co-wound ribbon, the co-wound ribbon of the white ink layer preferably has the following content. (White ink layer) White ink layer 22 provided on substrate 21
Since it is necessary to form a white recording image having a hiding power, heat-melt transfer recording is preferably used. As the colorant, a white pigment is used, and in general, rutile-type or anatase-type titanium oxide (TiO ₂ ) is used because it has a sufficient coloring density. In addition, inorganic particles such as calcium carbonate, silica and kaolin, EVA, PMM
Organic particles such as particles of A and hollow particles may be used. As the binder to be used, the main component is wax,
In addition, mixtures of drying oils, resins, mineral oils, derivatives of cellulose and rubber, and the like are used. As wax,
Examples include microcrystalline wax, carnauba wax, and paraffin wax. In addition, Fischer-Tropsch wax, various low molecular weight polyethylene, wood wax,
Various waxes such as beeswax, spermaceti, Ibota wax, wool wax, shellac wax, candelilla wax, petrolactam, polyester wax, partially modified wax, fatty acid ester and fatty acid amide are used. In the case of the present invention, as a binder used for the white transfer layer, ethylene-vinyl acetate copolymer resin, vinyl chloride
It is more preferable to use at least one of vinyl chloride copolymer resin, acrylic resin, or acrylic resin, at least one of chloride rubber, vinyl chloride / vinyl acetate copolymer resin, and cellulose resin. The pigment in the ink layer is 5-70
A proportion occupying a percentage by weight is generally preferred. The coating amount of the white ink layer is preferably 0.5 g / m ^{2 to} 10 g / m ² (in terms of solid content).

As a method for forming a hot-melt white ink layer on a base material, necessary components such as a binder mainly composed of a pigment and a wax are melt-kneaded, and this is applied by a hot melt coating method or the like. A method of applying and drying an emulsion ink obtained by mixing or mixing an emulsion obtained by emulsifying or dispersing a binder mainly composed of wax in an aqueous medium which may contain alcohol or the like, and an aqueous dispersion of a pigment may be used. As the binder, it is preferable to use a thermoplastic resin in addition to the wax, and the thermoplastic resin is used in an amount of 10 to 10 parts by weight of the wax.
It is preferable to use 100 parts by weight. The white ink layer thus formed usually has a thickness of 0.5 to 10%.
It is preferable to form it with a thickness of about μm. Further, in order to improve the releasability, a transparent release layer made of wax and resin or wax and particles or resin and particles, wax alone, resin alone is formed in advance when forming the ink layer, and then transferred after transfer. The image can also have a surface layer. The release layer is generally 0.1 to 5 μm
About the thickness. The forming method is based on a known coating method. In the case of using a release layer, the white ink layer preferably has a pigment / resin / wax ratio of 100/10 to 100/0 to 100.

(Layer having a metallic luster) Materials for forming a layer having a metallic luster in the same manner include a binder made of the above resin or wax or a mixture thereof, and a metal such as aluminum, gold, silver, copper, or chromium. Alternatively, it is composed of a metal pigment which is an alloy powder. Among these metal pigments, aluminum powder is particularly preferable in consideration of glossiness and cost. If necessary, a yellow pigment, a dye or the like may be dispersed. Further, aluminum may be provided on the release layer by vapor deposition. At this time, a yellow pigment / dye is mixed in the release layer in order to obtain a golden color.

(Heat-Resistant Layer) It is preferable to provide a heat-resistant layer 25 on the surface of the base material 31 that contacts the thermal head to prevent adverse effects such as sticking and printing wrinkles due to the heat of the thermal head. As the resin for forming the heat-resistant layer, any conventionally known resin may be used. For example, polyvinyl butyral resin, polyvinyl acetoacetal resin, polyester resin, vinyl chloride / vinyl acetate copolymer, polyether resin, polybutadiene resin, Styrene / butadiene copolymer, acrylic polyol, polyurethane acrylate, polyester acrylate, polyether acrylate, epoxy acrylate, urethane or epoxy prepolymer, nitrocellulose resin, cellulose nitrate resin, cellulose acetopropionate resin, cellulose acetate butyrate Resin, cellulose acetate hydrodiene phthalate resin, cellulose acetate resin, aromatic polyamide resin, polyimide resin, polycarbonate resin, chlorinated poly Such as olefin resin, and the like.

As the slipperiness imparting agent to be added to or overcoated with the heat-resistant layer made of these resins, phosphate esters,
Silicone oils, graphite powders, silicone-based graft polymers, fluorine-based graft polymers, acrylic silicone graft polymers, acrylic siloxanes, silicone polymers such as aryl siloxanes, and the like, preferably polyols, for example, polyalcohol polymer compounds and polyalcohols This is a layer composed of an isocyanate compound and a phosphate compound, and it is more preferable to add a filler.

In order to provide a heat-resistant layer on a substrate, the above components are dissolved in an appropriate solvent such as acetone, methyl ethyl ketone, toluene, xylene, etc. to form an ink for forming a heat-resistant layer.
This is formed on a substrate by a conventional appropriate printing method and coating method such as a gravure coater, a roll coater, and a wire bar. Next, when isocyanates are added, the resin is dried by heating to a temperature of 50 ° C. to 120 ° C., and a resin having an active hydrogen group is reacted with the isocyanates to form a heat-resistant layer. .
The thickness of the heat-resistant layer is 0.05 to 3 μm, preferably 0.1 to 3 μm.
It is preferably 0.5 μm. This film thickness is 0.05
When the thickness is less than μm, the effect as a heat-resistant layer is not sufficient, and when the thickness is more than 3 μm, heat transfer from the thermal head to the dye layer becomes poor, resulting in a decrease in print density. When a heat-resistant layer is provided on the substrate, it is preferable to heat to promote the reaction between the binder resin and the isocyanate. However, in order to prevent the transfer layer from being affected by heat, the heat-resistant layer is formed on the substrate. It is preferable to provide a hot-melt transfer layer after providing on it.

(Temporary Adhesive Layer) The temporary adhesive layer 24 for temporarily adhering the substrate 21 and the white ink ribbon may be any conventionally known adhesive, but a preferred adhesive is an adhesive having a low glass transition temperature. Made of resin. The adhesive force (g) of the pressure-sensitive adhesive layer was obtained by cutting a sample of 25 mm (width) × 55 mm (length), and measuring the surface friction with a surface friction meter (“HEI” manufactured by Shinto Scientific Co., Ltd.).
DON-14 ") and 1800 mm / min.
Is preferably in the range of 300 to 2000 g when measured at a pulling speed of. If the adhesive strength is less than the above range,
The adhesive strength between the substrate 21 on which the ink receiving layer is formed and the white ink ribbon is too low, the two are easily peeled off, and the thermal transfer sheet is more likely to wrinkle. On the other hand, if the adhesive strength exceeds the above range, the adhesive strength is sufficient, but the ink layer is easily transferred to the base even in the white image non-forming portion, and the base is contaminated.

The glass transition temperature of the resin used for the temporary adhesive layer 24 is preferably in the range of -90 ° C. to -10 ° C. As an example of such an adhesive resin, a rubber-based adhesive A resin, an acrylic adhesive resin and a silicone adhesive resin can be used, and any of them can be used, but an acrylic adhesive is particularly preferable. The above-mentioned adhesive resin has a solid content of 5 to 4 such as toluene, xylene, methyl ethyl ketone, ethyl acetate and butyl acetate.
It is preferably used as an organic solvent solution of about 0% by weight. When such an organic solvent-based solution is used, good tackiness can be imparted to the transparent resin sheet. However, since a sticky feeling remains on the surface of the transparent resin sheet as it is, it is preferable to use an appropriate crosslinking agent. As the suitable crosslinking agent, any conventionally known crosslinking agent can be used, and particularly preferred crosslinking agents are polyisocyanates such as toluene diisocyanate-isocyanurate and isophorone diisocyanate trimethylol propane adduct.
It is preferable to use 5 to 10 parts by weight per 100 parts by weight of the adhesive. If the amount of the cross-linking agent is too small, a sticky feeling remains, while if it is too large, the tackiness decreases, which is not preferable. The pressure-sensitive adhesive layer is 0.1 to 10 μm
A thickness of 0.1 to 5 g / m ² (as a solid coating amount) is preferable. As another method, an ink receiving layer / temporary adhesive layer such as a polyester resin and the ink may be directly bonded to the base material without using an adhesive layer.

[0042]

【Example】

(Example 1) In Example 1, first, an image forming body (1) is formed by outputting a color image of a package design composed of three colors on a transparent base material by an ink jet printer, and then forming the background of the package design. An image forming body (2) was formed by outputting a white single-color image to a transparent substrate by a hot-melt transfer method.

<Preparation of Image Formed Body (1)> As a recording sheet, a 100 μm thick transparent polyethylene terephthalate film was coated with the following ink-receiving layer composition so that the dry coating amount was 10 g / m ² . It was applied by a bar coating method. After the application, drying was performed at 120 ° C. for 5 minutes to prepare a recording sheet on which the inkjet ink receiving layer 12 was formed. [Ink receiving layer composition] Water-soluble resin: polyvinyl alcohol ("PVA217", Kuraray Co., Ltd.) Polymerization degree 1700, saponification degree 88 mol% 10 parts Water 60 parts Isopropyl alcohol 30 parts

An ink jet printer (“BJC” manufactured by Canon Inc.) is provided on the ink receiving layer 12 of the recording sheet.
-5500 J "), and a full-color (yellow, magenta, and cyan color was recorded in this color order) image was output in front side recording, and an image forming body (1) was produced.

<Preparation of image forming body (2)>
Using a transparent polyethylene terephthalate film with a thickness of 5 μm (“Lumirror T-60” manufactured by Toray Industries, Inc.)
On its surface, the following ink composition is dried at solid content,
The white ink layer 22 is applied at a rate of 4.0 g / m ^2.
Was formed into an ink ribbon. [Ink composition] Carnauba wax 15 parts Ethylene / vinyl acetate copolymer 10 parts White pigment (TiO ₂ ) 20 parts Polyethylene wax 55 parts Petroleum resin 10 parts

Next, the white ink ribbon 22 side of the obtained white ink ribbon and a transparent polyethylene terephthalate film having a thickness of 100 μm (“Lumirror Q” manufactured by Toray Industries, Inc.)
80D "), the pressure-sensitive adhesive composition having the following composition was coated by a gravure coating method at a drying amount of 0.5 g /
After coating and drying on the back side of the substrate at a ratio of m ² , the substrate was bonded to the white ink ribbon at a nip temperature of 50 ° C. and a nip pressure of 5 kg / cm ² . [Adhesive composition] Acrylic adhesive resin (glass transition temperature -58 ° C) 10 parts Polyisocyanate 1 part Toluene 44 parts Methyl ethyl ketone 44 parts

The co-wound hot-melt transferable white ink ribbon is transferred to a hot-melt transfer printer (prototype, T / H resolution 2).
Using a resolution of 00 dpi, an applied energy of 0.3 mJ / dot, and a printing pressure of 4 kg / A2, a solid white image is output by front side recording so as to be similar to the full-color image of the image forming body (1). Then, the substrate 31 was peeled off to produce an image forming body (2). As shown in FIG. 1, the overlay calibration sheet was positioned so that the full-color image of the image forming body (1) was on the outer surface and the white image of the image forming body (2) was on the inner surface.

Example 2 In Example 2, first, a package design consisting of three colors was output on a transparent base material by a sublimation transfer printer to form an image forming body (1).
The white image behind the package design was output to a transparent substrate by a hot-melt transfer method to form an image forming body (2).

<Preparation of image forming body (1)> Thickness 100 μm
The following ink-receiving layer composition was applied to the surface of a transparent polyethylene terephthalate film ("Lumirror Q80D" manufactured by Toray Industries, Inc.) by a bar coating method so that the coating amount when dried was 4 g / m ² . After application, 120 ° C,
Drying was performed for 5 minutes to prepare a recording sheet on which a sublimation transfer receiving layer was formed. [Ink receiving layer composition] 100 parts of vinyl chloride-vinyl acetate copolymer (1000 D, manufactured by Denki Kagaku Kogyo Co., Ltd.) 3 parts of amino-modified silicone (X-22-349, manufactured by Shin-Etsu Chemical Co., Ltd.) Epoxy-modified silicone 3 parts (KF-393, manufactured by Shin-Etsu Chemical Co., Ltd.) Methyl ethyl ketone / toluene = 1/1 400 parts

A sublimation transfer printer ("UPD700" manufactured by Sony Corporation) is applied to the surface of the ink receiving layer of the recording sheet.
0 "), a full-color (cyan, magenta, and yellow color was recorded in this color order) image was output by backside recording to produce an image forming body (1).

<Preparation of image forming body (2)>
A transparent polyethylene terephthalate film having a thickness of 100 μm (“Lumirror T-60” manufactured by Toray Industries, Inc.) was used, and the following ink composition was dried at a solid content of 4.0 g / m ² on the surface. To form a white ink layer 5 to form an ink ribbon. [Ink composition] Carnauba wax 15 parts Ethylene / vinyl acetate copolymer 10 parts White pigment (TiO ₂ ) 20 parts Polyethylene wax 55 parts Petroleum resin 10 parts

A white ink ribbon of this heat-melt transferability was transferred to a heat-melt transfer printer (prototype, T / H resolution 200 dp).
i, applied energy 0.3 mJ / dot, printing pressure 4 kg /
(A2 size width), an image forming body (2) was output by a front side recording of a solid printed white image having a mirror image relationship with the image forming body (1). As shown in FIG. 2, the full-color image of the image forming body (1) and the white image of the image forming body (2) are aligned and overlapped as shown in FIG. A calibration sheet was used.

Example 3 In Example 3, first, an image forming body (1) was formed by outputting a package design of three colors on a transparent base material by using an electrophotographic printer.
The white image behind the package design was output to a transparent substrate by a hot-melt transfer method to form an image forming body (2).

<Preparation of Image Forming Body (1)> Thickness 100 μm
m, a transparent polyethylene terephthalate film ("Lumirror T-60" manufactured by Toray Industries, Inc.) coated with the following ink-receiving layer composition by a bar coat method so that the dry coating amount is 4 g / m ^2. did. After application, 120 ° C,
Drying was performed for 5 minutes to prepare a recording sheet having an electrophotographic receiving layer formed thereon. [Ink receiving layer composition] Polyester resin (Tg: 60 ° C) 20 parts Methyl ethyl ketone 40 parts Toluene 40 parts Silica (particle size: 5 μm) 0.1 part

Coating and drying were performed by known methods to obtain a film thickness of 3 g / m ² . Next, an antistatic agent having the following composition was applied to the front and back surfaces of the substrate by a gravure direct method to form an antistatic layer. The electric resistance value of the substrate after application is 1 × 10 ¹⁰ Ω
(23 ° C., 50% RH). [Antistatic agent composition] Chemistat 2500 (manufactured by Sanyo Chemical Industries, Ltd.) 0.1 part Isopropyl alcohol 100 parts An electrophotographic printer (Fuji Xerox Co., Ltd.) connected to a personal computer on the recording sheet obtained above. A
color "), and a full-color image was output in front side recording to obtain an image-formed body (1).

<Preparation of image forming body (2)>
A transparent polyethylene terephthalate film having a thickness of 100 μm (“Lumilar T-60” manufactured by Toray Industries, Inc.) was used, and 4.0 g of the same ink composition as in Example 2 was dried on the surface at a dry solid content. / M ² to form a white ink layer 5 by coating at a rate to give an ink ribbon. This white ink ribbon having heat transferability was image-formed using a heat-sensitive transfer printer (prototype, T / H resolution 200 dpi, applied energy 0.3 mJ / dot, printing pressure 4 kg / A2 size width). The image forming body (2) consisting of a solid white image similar in shape to the full-color image of (1) was output by front side recording. As shown in FIG. 1, the full-color image of the image forming body (1) is positioned on the outer surface, and the white image of the image forming body (2) is positioned on the inner side. A calibration sheet was used.

Example 4 In Example 4, first, an image forming body (1) was formed by outputting a package design of three colors on a transparent base material by using an electrophotographic printer,
An image forming body (2) was formed by outputting a background image having a metallic luster behind the package design to a transparent substrate by a hot-melt transfer method.

<Preparation of Image Formed Body (1)> An image formed body (1) was prepared on a recording sheet made of the same material as in Example 3 using the same electrophotographic printer.

<Preparation of image forming body (2)>
A transparent polyethylene terephthalate film having a thickness of 100 μm (“Lumirror T-60” manufactured by Toray Industries, Inc.) was used, and the following ink composition was dried at a solid content of 4.0 g / m ² on the surface. To form an ink layer 5 having a metallic luster, thereby obtaining an ink ribbon. [Ink composition] Carnauba wax 15 parts Ethylene / vinyl acetate copolymer 10 parts Aluminum powder (Al ₂ O ₃ ) 20 parts Polyethylene wax 55 parts Petroleum resin 10 parts

The ink ribbon having the metallic luster of the heat-melt transfer property is transferred to a heat-melt transfer printer (prototype, T / H resolution 200 dpi, applied energy 0.3 mJ / do).
t, printing pressure of 4 kg / A2 size width), an image forming body (2) having a metallic glossy color of solid printing similar to the image forming body (1) was output by front side recording. The image forming body (1) is positioned and overlapped as shown in FIG. 1 so that the full-color image is on the outer surface and the metallic glossy image of the image forming body (2) is on the inner surface. The sheet was adhered to form a calibration sheet.

Example 5 In Example 5, first, a package design consisting of three colors was output on a transparent substrate by a sublimation transfer printer to form an image forming body (1).
An image forming body (2) was formed by outputting a background image having a metallic luster behind the package design to a transparent substrate by a hot-melt transfer method.

<Preparation of image forming body (1)> A full-color image forming body (1) was prepared on a recording sheet made of the same material as in Example 2 using the same sublimation transfer printer.

<Preparation of Image Forming Body (2)>
Using a transparent polyethylene terephthalate film having a thickness of 4.5 μm (“Lumirror T-60” manufactured by Toray Industries, Inc.), the following release layer composition was applied to the surface thereof by a gravure direct method at 1.0 g / m ^2. To form a release layer, and aluminum vapor deposition was performed through the release layer to form a co-wound ribbon having a 300-mm-thick aluminum vapor-deposited layer, which was used as a metallic luster ribbon. [Release layer composition] Carnauba wax emulsion 40 parts Polyester resin emulsion (Tg 60 ° C) 10 parts Isopropyl alcohol 30 parts Water 15 parts Yellow pigment 5 parts

The ink ribbon having the metallic luster of the hot-melt transfer property was transferred to a hot-melt transfer printer (prototype, T / H resolution 200 dpi, applied energy 0.3 mJ / dot,
Using a printing pressure of 4 kg / A2 size width), an image forming body (2) consisting of a solid metallic gloss color having a mirror image relationship with the image forming body (1) was output in front side recording. As shown in FIG. 2, the full-color image of the image-forming body (1) and the metallic glossy image of the image-forming body (2) are aligned and superimposed as shown in FIG. The sheet was adhered to form a calibration sheet.

[0065]

According to the proofreading sheet of the present invention, a color image on the front side is formed on the surface of a transparent substrate by ink jet recording, sublimation transfer recording, heat-sensitive melt transfer recording or electrophotographic recording, and the other transparent sheet is formed. Since an image having a white or metallic luster as a back image is formed on the base material surface using a heat-sensitive fusion transfer ribbon, it can be used as a calibration sheet by superimposing it on a front side full-color image or the like. Also,
According to the method for producing a calibration sheet of the present invention, such a calibration sheet can be easily produced.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a calibration sheet of the present invention.

FIG. 2 is a cross-sectional view showing another embodiment of the calibration sheet of the present invention.

FIG. 3 is a cross-sectional view illustrating a process of manufacturing the calibration sheet of the present invention.

FIG. 4 is a sectional view showing a co-wound ribbon.

FIG. 5 is a cross-sectional view illustrating a state after an image is output to the co-wound ribbon.

FIG. 6 is a cross-sectional view showing another form of the co-wound ribbon.

FIG. 7 is a cross-sectional view illustrating a state after an image is output to the co-wound ribbon.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Recording sheet 11, 21, 31 Base material 12 Ink receiving layer 13, 23 Image 14 Anti-curl / antistatic layer 22 White ink layer 22 'White image 24 Temporary adhesive layer 25 Heat resistant layer 26 Adhesive or adhesive 27 Temporary adhesion Layer / ink receiving layer 28 mat layer 32 release layer

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI G03F 3/10 B41J 3/20 117A

Claims (12)

[Claims] An image forming body (1) in which only a color image of a print pattern composed of a color image and a light-colored back image is recorded on a transparent substrate, and a heat-sensitive fusion transfer method on the transparent substrate. A calibration sheet, wherein the image forming body (2) on which only the back image is recorded is aligned and superimposed. 2. The image forming body (1) is output by a printer of any one type selected from an ink jet system, a sublimation transfer system, a heat-sensitive melting transfer system, and an electrophotographic system. The calibration sheet according to claim 1. 3. The calibration sheet according to claim 1, wherein the image forming body is white. 4. The calibration sheet according to claim 1, wherein the image forming body (2) has metallic luster. 5. The image forming apparatus according to claim 1, wherein both the image forming body and the image forming body on which the background image is recorded are provided with registration marks or pin holes for positioning them. The calibration sheet according to claim 4. 6. The image forming body (1) is recorded on the back side of the base material, the image forming body (2) is recorded on the front side of the base material, and the two images are in a mirror image relationship. The calibration sheet according to claim 1. 7. The image forming body (2) is output from a co-wound ribbon in which a heat-sensitive melt transfer ink ribbon is temporarily bonded to one side of a transparent transfer-receiving substrate via a temporary bonding layer. The calibration sheet according to claim 1, wherein: 8. A step of preparing an image forming body (1) in which a color image is recorded by being output from an image output printer on a transparent base material, and a light-color monochromatic image serving as a background image of the color image is transparently formed. A step of preparing an image-formed body (2) output from a thermal-melt transfer printer on a transparent substrate, and a step of aligning and superposing both image-formed bodies. Method of manufacturing. 9. The method for producing a calibration sheet according to claim 8, wherein the image forming body (2) is white. 10. The method according to claim 1, wherein the image forming body has a metallic luster. 11. The image forming body (2) outputs from a co-wound ribbon in which a heat-sensitive melt transfer ink ribbon is temporarily bonded to one surface of a transparent transfer-receiving substrate via a temporary bonding layer. A method for producing a calibration sheet according to claim 8. 12. The method for producing a calibration sheet according to claim 8, wherein the superimposing is performed by superposing and integrating both image forming bodies with an adhesive or a pressure-sensitive adhesive.