JP2000326619A - Printed product for preventing forgery and alteration and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printed product being prevented from forgery and altera tion which take countermeasure for preventing readhering due to coating of a transparent adhesive film or a transparent layer by a way more difficult to make forgery and alteration when images are to be formed on a base mate rial to be printed, and a method for manufacturing it. SOLUTION: In addition to a first image 3a necessary to prevent readhering of a base material 2 to be printed, a second image 3b having preciseness without lowering visibility of the image even by superposing with the first image is superposed. The method for superposing the image 3b has the step of superposing on the material 2 or superposing by forming a receiving layer 4 as one or two layers at the same position or dividing the layer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed matter which can be applied to a certificate or the like and has high anti-counterfeiting / falsification and a method of manufacturing the same.

[0002]

2. Description of the Related Art Counterfeiting and alteration are of high value, especially of high economic value. For example, money and banknotes, stock certificates and securities, checkbooks, and the like have the stated amount or more if speculated. Deposit and saving cards (commonly known as cash cards) and credit cards at financial institutions also have indirect but economic value. The targets of counterfeiting and alteration are not limited to those having economic value. Driver's licenses and IDs (including alien registration cards) are subject to counterfeiting or falsification by anyone who wants to obtain them with fraudulent intentions, aside from using them for financial benefits. .

[0003] Among the above, a savings card (commonly referred to as a cash card), a credit card, a driver's license, an identification card, and the like at a financial institution differ in how they are used. A so-called ID that proves that the person who has the right to do it holds it correctly
It has the function of the card in common. And, although not necessarily all cases, these ID cards often have a face photograph attached to the surface. The face photograph is unique to each person, and can be used because the photographing itself can be performed in a short time to capture the image, and since there is no resistance for each person to publish on the ID card. Suitable for

[0004] However, simply by attaching a face photograph,
There is a possibility that the face photo will be peeled off and replaced with another face photo. In order to prevent re-sticking, put a transparent adhesive film on the face photo in a larger size than the face photo,
Alternatively, the entire surface is covered with a transparent layer. However, even in this case, peeling by heating or applying a solvent cannot be completely prevented. Moreover, it is not so difficult to cover the transparent layer after peeling off and replacing the face photograph in this way. Not limited to the above example,
Means to prevent peeling and replacing another image when the image laminated on the base material is important, and if it is replaced, inconvenience such as unauthorized use is expected. is necessary.

[0005]

In the present invention, when forming an image on a substrate to be printed, measures to prevent re-sticking by coating a transparent adhesive film or a transparent layer are more difficult to forge and alter. It is an object of the present invention to provide an improved forgery / falsification prevention printed matter and a method for producing the same, which are performed in a flexible manner.

[0006]

According to the present invention, in addition to the first image which needs to be prevented from being replaced, the second image which does not lower the visibility of the image even when it is overlapped with the image and has high precision. The above problem was solved by superimposing images. As a method of superimposing the second image, in addition to directly superimposing the second image on the first image, there is a method of forming the second image on a transparent layer superimposed on the first image.

The first invention has first and second images formed by dyeing on the surface of a substrate to be printed or in the vicinity thereof, wherein the first image is a personal image. And the second image is an image that does not substantially reduce the visibility of the first image when superimposed on the first image and has precision. And a printed material for preventing forgery and alteration. Second
The invention according to the first aspect, wherein a receiving layer which is dye-receptive is laminated on a surface of the substrate to be printed, and the receiving layer has the first image and the second image. The present invention relates to a forgery / falsification prevention printed matter. The third invention relates to the forgery / falsification prevention printed matter according to the second invention, wherein the receiving layer is a single layer. In a fourth aspect based on the second aspect, the receiving layer is formed of two layers laminated on each other, and the first and second images are formed separately from the two receiving layers. And forgery / falsification prevention printed matter. The fifth invention relates to the first to fifth aspects.
In any one of the fourth inventions, the present invention relates to a forgery / falsification prevention printed matter, wherein the second image is made of a fluorescent dye. The sixth invention forms a first image that can identify an individual using a sublimation transfer sheet having a transfer layer containing a normal sublimation dye on a substrate having a dye-dyeable surface. And using a fluorescent thermal transfer sheet having a transfer layer containing a fluorescent dye, when the first image is superimposed on the first image, without substantially reducing the visibility of the first image, and having precision. The present invention relates to a method for producing a forgery / alteration-prevention printed matter, wherein at least two steps including a step of transferring a second image are performed. According to a seventh aspect of the present invention, a transfer layer containing a normal sublimable dye is provided on an intermediate transfer medium in which at least a receiving layer having a dye-dyeable surface laminated on a support is laminated on a support. Forming a first image that can identify an individual by using a sublimation transfer sheet having: and a fluorescent thermal transfer sheet having a transfer layer containing a fluorescent dye, and superimposing the first image by using After substantially performing the step of transferring the second image having high precision without substantially lowering the visibility of the first image, the first and second images are The formed intermediate transfer medium is overlapped with its receiving layer side facing the substrate to be printed, and the receiving layer on which the first and second images are formed is formed by applying heat and pressure. Forgery characterized by being transferred to a substrate A process for producing a printed material forming prevented. An eighth invention is directed to the manufacture of a forgery / falsification prevention printed matter according to the seventh invention, wherein the step of forming the first and second images is performed on the same portion of the intermediate transfer medium. It is about the method. According to a ninth aspect, in the seventh aspect, the step of forming the first and second images is performed on different portions of the same intermediate transfer medium. It relates to a manufacturing method. A tenth invention is directed to the method for producing a forgery / falsification prevention printed matter according to the seventh invention, wherein the steps of forming the first and second images are performed on different intermediate transfer media. Things. An eleventh invention is directed to any one of a printing substrate and an intermediate transfer medium in which at least a receiving layer having a surface dye-dyeable and laminated on a support is releasably laminated on the support. Performing a step of forming a first image that can identify an individual using a sublimable transfer sheet having a transfer layer containing a normal sublimable dye, and a fluorescent thermal transfer having a transfer layer containing a fluorescent dye on the other hand. After substantially performing the step of transferring a second image having precision without substantially lowering the visibility of the first image when the first image is superimposed on the first image using a sheet, The printing substrate and the intermediate transfer medium on which the first or the second image is formed,
The receiving layer on which the first and second images are formed is transferred to the printing substrate by superimposing the two with the receiving layer side of the intermediate medium facing the printing substrate and applying heat and pressure. The present invention relates to a method for producing a printed material for preventing forgery and alteration. According to a twelfth aspect, in any one of the sixth to eleventh aspects, the sublimation transfer sheet and the fluorescent heat transfer sheet may both be formed on the same or different transfer sheet base materials. The present invention relates to a method for producing a printed material for preventing forgery and alteration.

[0008]

1 to 5 show an embodiment of the present invention, and are all sectional views. As illustrated in FIG. 1 (a), the simplest structure of the forgery / falsification prevention printed matter 1 of the present invention has a property that the surface has a property capable of dyeing a dye image. Two types of images 3 (dotted lines) generated by dyeing directly on the printing substrate 2
It has. The location having the image 3 may be not only the substrate 2 to be printed but also another receiving layer 4. The receiving layer has a property that a dye image can be dyed, that is, has a dye receiving property. For example, as shown in FIG. 1 (b), one receiving layer 4 is laminated on the substrate 2 to be printed, and has an image 3 a on the substrate 2 to be printed and an image 3 b on the receiving layer 4. Although not shown, or not shown, the receiving layer 4
May have two types of images. Further, as shown in FIG. 1 (c), two receiving layers 4a and 4b may be sequentially laminated, and each receiving layer may have images 3a and 3b. Although not shown, a structure having an image in each of three or more laminated receiving layers may be employed. Since the above-described image 3 is composed of two types of images, the image is divided into layers such as a case where two types of images are included in the same portion and one type of image in another layer that is superimposed. May be.

Such an image 3 (including 3a and 3b) is formed using a sublimable transfer sheet having a transfer layer having a sublimable dye in the layer. The sublimation transfer sheet is obtained by, for example, applying a binder or a saturated polyester resin on a heat-resistant base film such as a polyester film, applying a paint or ink dissolved in a solvent together with a sublimation dye, and drying the resultant. Can be The sheet on which an image is formed is generally a sheet in which a receiving layer 4 made of a resin (for example, a saturated polyester resin) film having a property of dyeing is laminated on an appropriate base, and is called an image receiving sheet. . The transfer layer side of the sublimation transfer sheet is overlapped on the image receiving sheet, and heat is applied from the back surface of the sublimation transfer sheet using a thermal head. Sublimates or migrates to the receiving layer of the sheet (various theories; sublimation is not 100%). The amount of heat to be applied can be controlled by the number of pulses input to the thermal head, and the amount of dye sublimated or transferred in accordance with the amount of heat applied, so that a grayscale image is formed by the dye. For color image formation, as a sublimable dye,
Each of the three primary colors of light is selected, areas of different colors are divided on the same transfer sheet, transfer layers of each color are formed, and a red, blue, and yellow color separation image of an image to be formed is formed. According to the information, the color separation image of each color is superimposed and printed on the same area of the image receiving sheet, thereby forming a color gradation image.

In the present invention, the images used are:
There can be various things, but they are roughly divided into two. A representative of the first class of images is a facial photograph, which is unique to an individual and can identify the individual. Face photographs are distinguishable with the naked eye, and have the advantage of not requiring special equipment or training for normal use, and face photographs can be used for personal confirmation in various places. Because it is used for photography, it is the easiest to use because there is little individual resistance to shooting and using. For personal identification, in addition to facial photographs, geometrical features of each part of the human body, such as fingerprints of the palm and iris patterns of the eyes, and physical information generated based on them, such as voiceprint spectra, are also images. Can be treated as In addition, whether it is not necessarily suitable for treating as an image and judging by seeing it, or various medical examination data such as height, weight, blood test data and genetic information of an individual are also data derived from the individual, It can be used in general.

The image of the second class is formed in the same layer or on a different layer from the image of the first class, and the images are superimposed on each other. As the second class of images, transparent holograms that can see through the lower layer are originally suitable, but since they must be separately formed, they are not suitable for the transfer method of heating with a thermal head based on image information. However, it is possible to create a transparent hologram-like image in a light color such as yellow. Since the second image is superimposed on an image such as a face photograph that can identify an individual, it is preferable that the second image does not substantially reduce the visibility of the face photograph or the like when superimposed. From the point of view of precision (=
It is desirable that the pattern be fine. It is desirable that the precision of the image of the second category is about 5 to 20 lines / mm when the size of a line or a halftone dot is represented by the number of lines. Such fineness makes it difficult to forge or falsify with the naked eye or human power. The second class of images includes color prints that are familiar with banknotes, stock certificates, and the like. However, it is not a traditional sculpture intaglio or a copy of it, but more detailed. Explaining these images, including the motifs, a grid consisting of a large number of lines in one direction, a combination of vertical and horizontal lines, a curve, a combination of curves, a plain mesh, a decorative ruled line, or a character / symbol -There are repetitions of minute patterns such as marks. These exemplified patterns are not necessarily related to an individual, but may be unique to the individual as long as the above conditions are met. For example, a fingerprint, a shadow of a seal, a signature of one's own, or Although the parts overlap, it is also possible to select from the face photographs listed as the images of the first category and other individual patterns. Such personal information is generally less regular than non-individual information, so if you try to fake it with unfair intent, you will have to make a difference unless you faithfully copy the genuine one. It is more conspicuous and is more suitable for forgery and alteration prevention.

The image of the second class may be formed in an appropriate color. However, since the image of the second class overlaps with the image of the first class such as a face photograph, it depends on the number of lines of the image of the second class. However, there is a possibility that the visibility of the first class of images may be reduced. Therefore, the second
If the image of the first class is formed with a fluorescent dye, the visibility of the image of the first class is not substantially reduced, but can be made more conspicuous depending on the lighting and viewing angle, or
It is more preferable because the verification can be made conspicuous by special lighting such as black light.

The manufacture of the printed material 1 for preventing forgery / falsification of the present invention can be carried out by the following several methods. (1) The simplest method is a method of creating a forgery / falsification prevention printed matter 1 as shown in FIG. A first class of image is formed on a substrate 2 to be printed using a sublimable transfer sheet made using a normal sublimable dye containing no fluorescent dye. A second image is formed using a fluorescent thermal transfer sheet formed using a dye.
(2) Generally, when performing sublimation transfer, the quality of the transferred image is higher when the other party is a thin sheet than when the partner is a hard plate. The transfer is performed not directly on the printing substrate 2 that is often a plate-shaped body, but using another sheet-shaped printing substrate, and further transferred again (= re-transfer).
Good to do. 2 or 3 so that the image can be retransferred.
As shown in (1), an intermediate transfer medium in which a receptive layer 4 (including 4a and 4b) is releasably laminated on a releasable support 5 is prepared, and transfer to the receptive layer 4 is performed. It is. In order to transfer two types of images, there is the following method obtained by subdividing this method (2). (2a) Two types of images are formed at the same location on the same intermediate medium. (2b) Two types of images are formed on different portions of the same intermediate medium. (2c) Two types of images are formed on two different intermediate media, respectively. (2b) and (2c)
, Retransfer is performed twice. (3) A method of combining the above (1) and (2), wherein an image is formed on the substrate 2 to be printed, and the receiving layer 4 on the peelable support 5 of the intermediate transfer medium is provided. And a step of retransferring the receiving layer of the intermediate transfer medium, on which the image 3 has been formed, onto the substrate 2 on which the image has been formed.

FIG. 2 shows the above (2a) and (2b)
First, the transfer sheet (A) is brought into contact with the intermediate transfer medium having the receptive layer 4a laminated on the releasable support 5 at the left side of the transfer sheet, and the platen roll (= pressure) The transfer is performed by causing the thermal head 9 to act on the (roll) 6, and then another transfer sheet (B) is brought into contact with the right side, and an image is first formed using the transfer sheet (A). The thermal head 9 also acts on the platen roll 6 to perform the transfer on the formed receiving layer 4a.

FIG. 3 relates to the above method (2c), in which an intermediate transfer medium having a receptive layer 4a laminated on a releasable support 5a and a receptive layer 4b on a releasable support 5b.
Are prepared, one of the transfer sheets (A) and (B) is provided for one of the intermediate transfer media, and the transfer sheet is provided for the other of the intermediate transfer media. Using the other transfer sheet, transfer is performed in the same manner as described with reference to FIG.

Retransfer is performed as follows. FIG. 4 schematically shows the retransfer. As shown on the left side in the figure, an intermediate structure in which the receiving layer 4a is releasably laminated on the releasable support 5a with respect to the substrate 2 to be printed. The transfer medium is oriented such that the receiving layer 4b side faces the substrate 2 to be printed, and the substrate 2 to be printed and the intermediate transfer medium are paired up and down in a hot press roll 10
a and 10b, the receiving layer 4a is adhered onto the substrate 2 to be printed, and then the peelable support 5a is peeled off and removed.
A forgery / falsification prevention printed matter 1 having a laminated structure as shown in (b) is obtained. Further, the printing substrate 2 is sent to the right side, and the intermediate transfer medium in which the receiving layer 4b is releasably laminated on the releasable support 5b is retransferred again, as shown in FIG. 1 (c). A forgery / falsification prevention printed matter 1 having a simple laminated structure is obtained. However, when retransfer is performed, the position of the image is slightly different even if the laminated structure is the same as that in FIG. 1B or 1C. In FIG. 1, since it is assumed that the image is formed by applying a sublimation transfer sheet from above, the position of the image is drawn on the printing substrate 2 or the receiving layer 4 (or 4a, 4b). When retransfer is performed, the receiving layer is turned upside down, and the receiving layer 4 (or 4
It is closer to the actual situation to draw an image in the lower part of a, 4b).

The substrate to be printed 2 used in the present invention is a substrate used as a so-called card, and a polyvinyl chloride resin sheet is usually used because of its suitability for printing and processing. From the viewpoints of prevention of warpage and warping, two white core sheets are provided at the center, and one transparent oversheet is provided on each of the front and back sides. However, the present invention is not limited to this. In addition, a plastic sheet that does not contain chlorine or a plasticizer, such as a polyester resin, can be used due to a problem in disposing of the invalidated card. Most resins have the property that dyes are easily dyed.However, the properties required for a substrate such as a card and the properties required for a receiving layer are slightly different. Reception layer 4
(Including 4a and 4b).

The fluorescent thermal transfer sheet used in the present invention is prepared by dissolving or dispersing in a solvent together with a fluorescent dye or a fluorescent pigment using a binder such as a saturated polyester resin on a heat-resistant base film such as a polyester film. A transfer layer is formed by applying a paint or ink and drying the transfer layer. The basic structure is the same as that of a conventional sublimation transfer sheet, and a different colorant is used.

In the present invention, a normal sublimation transfer sheet and a fluorescent heat transfer sheet are used as the transfer sheet, but both may be manufactured separately and used separately.
Alternatively, a transfer sheet in which the transfer layers of both transfer sheets coexist on the same transfer sheet may be used. The fluorescent heat transfer sheet can be arranged in four colors using only a fluorescent dye or a fluorescent pigment, but may be used in a small number of colors such as one color or two colors. On the other hand, a normal sublimation transfer sheet is obtained by winding a long sheet having a fixed width on an appropriate tube, and in the length direction of the long sheet, each of yellow, red, blue, and black is used. Usually, the transfer layer is formed separately. This color classification is performed by a printing press. In many cases, the outer circumference of the roller of the printing press corresponds to the length of the transfer sheet for one cycle of yellow, red, blue, and black. It may be difficult to increase the number of colors, mainly due to restrictions on manufacturing equipment.
If areas of about fluorescent color 1 and fluorescent color 2 are prepared in addition to blue and black, only one type of transfer sheet is required for transfer to the intermediate transfer medium, and printing from the intermediate transfer medium is performed. Re-transfer to the substrate 2 only needs to be performed once.

In addition, as a back surface treatment, a heat-resistant release agent is used on the transfer sheet to prevent the transfer sheet from being thermally fused to the thermal head at the time of transfer and to allow the transfer sheet to run smoothly. The back layer may be formed by coating.
In addition, the transfer layer of the transfer sheet may be thermally fused to the receiving layer of the image receiving sheet during transfer. Therefore, in addition to applying a release agent to the surface of the image receiving sheet, apply a release agent to the transfer layer side. There is also.

The intermediate transfer medium is basically formed by adhering a film as the peelable support 5 and the receiving layer 4 in a peelable manner.

The releasable support 5 is suitably made of paper or processed paper such as glassine paper, condenser paper, or paraffin paper. Alternatively, a plastic film such as a resin film such as polyethylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, polyphenylene sulfide, polyether ketone, or polyether sulfone is suitable.
In addition, a film of a resin such as polyester, polypropylene, polycarbonate, cellulose acetate, a polyethylene derivative, polyvinyl chloride, polyvinylidene chloride, polystyrene, polyamide, polyimide, polymethylpentene, or ionomer is suitable.

The receiving layer 4 (including 4a and 4b)
Is formed by selecting a resin to which a dye is easily dyed. Specifically, a polyolefin resin such as a polypropylene resin,
Copolymer resins of olefins such as ethylene or propylene with other vinyl polymers, ethylene-vinyl acetate copolymer resins, ionomers, halogenated resins such as polyvinyl chloride or polyvinylidene chloride resin, etc. Polymer resins, polyvinyl acetate resins, polyacrylate resins, polyethylene terephthalate or polybutylene terephthalate resins as polyester resins, polystyrene resins, polyamide resins, cellulose diacetate resins as cellulose resins, polycarbonate resins and the like. Can be Among them, a vinyl chloride resin, an acryl-styrene resin, or a polyester resin is particularly preferable. Receiving layer 4 (4a,
And 4b. ) Is prepared by dissolving or dispersing in a suitable solvent using these resins to prepare a coating or ink for forming a receptor layer, applying by a method such as gravure printing or roll coating, drying and forming, Is 1 to
It is about 10 μm. The object to which the coating or ink for forming the receiving layer is applied is the peelable support 5 when the intermediate transfer medium is manufactured. However, as described in the description of the forgery / falsification prevention printed matter 1, If the receiving layer is to be formed on the substrate 2 to be printed, the substrate 2 to be printed is to be applied.

Removable support 5 of intermediate transfer medium and receiving layer 4
In order to control the adhesive strength of the two and to bond them with a necessary strength before the transfer, and to facilitate the separation under predetermined conditions during the transfer, some layers may be interposed between the two. Depending on the relationship between the material forming the releasable support 5 and the material forming the receiving layer 4, it may have an appropriate adhesive force and may be smoothly transferred. It is preferable to form a releasable layer which is in close contact with the side and the exposed surface on the opposite side is releasable. Alternatively, the receptive layer 4 may be in close contact with the receptive layer 4 on the releasable support 5 side of the receptive layer 4, and the exposed surface on the opposite side may have the releasable support 5 and a release layer having a predetermined releasability. Good. When transferring the intermediate transfer medium,
Printed substrate 2 and receiving layer 4 (including 4a and 4b)
An adhesive layer having the same adhesiveness as the printing substrate 2 and the receiving layer 4 may be formed in the sense of ensuring the adhesion between the substrate 2 and the receiving layer 4. Generally speaking, if an adhesive is used at the time of retransfer, the adhesive is applied on the substrate 2 to be printed,
There are three ways: apply to the side or apply to both.

On the back side of the releasable support 5 of the intermediate transfer medium (the side without the receiving layer), a back surface treatment is performed in order to smooth the running when passing through a hot press roll or the like during retransfer. You may leave.

The printed material for preventing forgery / falsification of the present invention and the method for producing the same are constituted as described above. When the present invention is applied to a card or the like, various means usually applied to the card are used. Can be used in combination with the card base material.

A magnetic recording layer is one of the most widely used and card requirements. The magnetic recording layer is a stripe having a width of about 6 mm except that the case of a prepaid card or a point card has a magnetic recording layer formed on the entire surface. Directly using a paint made by adding and kneading the magnetic substance of above, or applying it to a base such as a thin plastic sheet, cutting and pasting it in a stripe shape, or laminating it temporarily to a temporary base It is formed by a transfer method using the magnetic recording layer transfer sheet prepared as described above. In addition to using a paint prepared by adding and kneading a magnetic substance, a magnetic substance thin film is formed in a gaseous phase by vapor deposition or sputtering of a magnetic substance (= magnetic metal or magnetic metal oxide). May be applied, and then cut and pasted in a stripe shape, applied by transfer, or the like.

The back of the card often has a writable layer. The writable layer is a field for signing the card holder himself, when signed with a pole pen or the like, does not repel ink, so that it penetrates to a certain extent, using a coating composition in which an extender is kneaded in an appropriate binder. Or by transferring or pasting the one formed on another substrate.

An IC or an LSI having an arithmetic unit and / or a memory unit may be embedded in the card base material so that it can be used. Using IC or LSI,
Since information far exceeding the amount of information that can be recorded on the magnetic recording layer 3 can be included, and writing, erasing, and computation can be performed, there is an advantage that it can be used as a bank passbook, a chart, and the like.

An optical diffraction pattern such as a hologram may be laminated on the card base material. The light diffraction pattern itself may contain information that is invisible to the naked eye. However, if a photo is pasted as an adhesive seal type light diffraction pattern sticker, it is possible to prevent the photo from being changed. Light diffraction pattern seals are difficult to make and are often affixed to prove that they are genuine seals. Alternatively, it may be used by firmly laminating with an adhesive. When the light diffraction pattern is a diffraction grating or a hologram especially among diffraction gratings, an adhesive layer or a pressure-sensitive adhesive layer, a light refraction layer, a transparent light diffraction pattern layer, and a protective layer are sequentially arranged from the bottom in order to visualize the hologram. They are often laminated to form an optical diffraction pattern seal.

[0031]

According to the first aspect of the invention, in addition to an image that can identify an individual, a printed matter is formed by superimposing an image having precision without lowering the visibility of the image.
Forgery and alteration are difficult. According to the second aspect, in addition to the effects of the first aspect, an image can be formed by dyeing a dye-receiving layer with a dye, whereby efficient production is possible. According to the third aspect, in addition to the effects of the second aspect,
Since an image is formed on a single receiving layer, the structure is simple and easy to manufacture. According to the fourth aspect, in addition to the effect of the second aspect, since the receiving layer is composed of two layers, the physical protection function is increased. According to the fifth aspect, in addition to the effects of any one of the first to fourth aspects, since the superimposed image is made of a fluorescent dye, it is difficult to reduce the visibility of an image that can be identified by an individual, and the normal sublimation property Since the versatility of the material is lower than that of the dye of the transfer sheet, the difficulty of forgery and falsification increases. According to the sixth aspect, the first image capable of confirming the individual is formed by using the sublimation transfer sheet, and does not substantially reduce the visibility of the first image, and has the precision. The forged / falsified printed matter can be manufactured by using a fluorescent thermal transfer sheet for the image of No. 2 and utilizing ordinary thermal transfer means. According to the seventh aspect, substantially the same effect as that of the sixth aspect can be obtained. Further, by temporarily transferring the image to the intermediate transfer medium and then re-transferring it to the substrate to be printed, it is possible to prevent forgery and falsification. Since a printed material is manufactured, the transfer can be performed using a material more suitable for image formation, so that a good image can be formed. According to the eighth aspect, in addition to the effect of the seventh aspect, it is possible to form a forgery / falsification prevention print using one intermediate transfer medium. According to the ninth aspect, in addition to the effect of the seventh aspect, since each image is formed using one different part of the intermediate transfer medium, compared to using a separate intermediate transfer medium, Transfer can be performed on the same machine, and retransfer processing can also be performed on the same machine. According to the tenth aspect, in addition to the effect of the seventh aspect, since the images are transferred to different intermediate transfer media, the second image is efficient when the same image is produced in large numbers. According to the eleventh aspect, forgery / falsification prevention printed matter in which two types of images are located at different portions can be manufactured using one intermediate transfer medium, so that material can be saved. According to the twelfth aspect, the sixth to eleventh aspects are provided.
In addition to the effects of any of the inventions, when both are formed on the same transfer sheet substrate as the sublimation transfer sheet and the fluorescent heat transfer sheet, only one type of transfer sheet may be used. Exchange of the transfer sheet during manufacture is easy and simple. When both are formed on separate transfer sheet substrates, there is an advantage that a general-purpose sublimable transfer sheet can be used.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a forgery / falsification prevention printed material of the present invention.

FIG. 2 is a cross-sectional view illustrating the manufacturing method of the present invention.

FIG. 3 is a sectional view showing another manufacturing method of the present invention.

FIG. 4 is a sectional view showing retransfer according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Forgery and alteration prevention printed matter 2 Substrate to be printed 3 Image 4 Reception layer 5 Removable support 6 Platen roll 7, 8 Transfer sheet 9 Thermal head 10 Hot press roll

 ──────────────────────────────────────────────────続 き Continued on the front page F-term (reference) 2C005 HA02 HA05 HB08 HB09 HB10 JA02 JA26 JB02 JB06 JB07 JB08 JB09 JB14 JB19 JB40 KA05 KA15 KA41 KA45 LA11 LA20 LA30 LB08 LB15 2H113 AA01 AA06 BA18 BA22 CA32 BC CA40 CA44 CA46 DA28 DA43 DA47 DA49 DA50 DA57 DA58 DA63 FA10 FA35

Claims (12)

[Claims] The present invention has a first image and a second image formed by dyeing on or near a surface of a substrate to be printed, wherein the first image can identify an individual. An image, wherein the second image does not substantially reduce the visibility of the first image when superimposed on the first image, and is an image having precision. Counterfeit
Printed material for alteration prevention. 2. A receiving layer, which is dye-receptive, is laminated on the surface of the substrate to be printed, and the receiving layer has the first image and the second image. The forged / falsified printed matter according to claim 1. 3. The forgery / falsification prevention printed matter according to claim 2, wherein said receiving layer is a single layer. 4. The image receiving apparatus according to claim 2, wherein said receiving layer comprises two layers laminated on each other, and wherein said first and second images are formed separately on said two receiving layers.
The forged / falsified printed matter described in the above. 5. The forgery / falsification prevention printed matter according to claim 1, wherein said second image is made of a fluorescent dye. 6. A step of forming a first image that can identify an individual using a sublimable transfer sheet having a transfer layer containing a usual sublimable dye on a substrate having a dye-dyeable surface. And, when using a fluorescent thermal transfer sheet having a transfer layer containing a fluorescent dye and superimposed on the first image, does not substantially reduce the visibility of the first image, and has a precision 2. A method for producing a forgery / alteration-prevention printed matter, comprising performing at least two steps of transferring an image. 7. A transfer layer containing a normal sublimable dye is provided on an intermediate transfer medium on which at least a receiving layer having a dye-dyeable surface is laminated releasably laminated on the support. Forming a first image that can identify an individual using a sublimable transfer sheet having the same, and using a fluorescent thermal transfer sheet having a transfer layer containing a fluorescent dye to overlap the first image. After performing at least two steps including a step of transferring a second image having a precision without substantially lowering the visibility of the first image, the first
And the intermediate transfer medium on which the second image is formed, with the receiving layer side facing the substrate to be printed, and the two are superimposed,
A method for producing a forgery / falsification prevention printed matter, wherein the receiving layer on which the first and second images are formed is transferred to the printing substrate by heating and pressing. 8. The method according to claim 7, wherein the step of forming the first and second images is performed on the same portion of the intermediate transfer medium. 9. The method according to claim 7, wherein the steps of forming the first and second images are performed on different portions of the same intermediate transfer medium. . 10. The method according to claim 7, wherein the step of forming the first and second images is performed on separate intermediate transfer media. 11. At least one of a substrate to be printed and an intermediate transfer medium having at least a receiving layer which is releasably laminated on the support and has a dye-dyeing surface on the support. Performing a step of forming a first image that can identify an individual using a sublimable transfer sheet having a transfer layer containing a normal sublimable dye, and a fluorescent thermal transfer sheet having a transfer layer containing a fluorescent dye on the other hand After performing the step of transferring a second image having a precision without substantially lowering the visibility of the first image when superimposed on the first image using The printing substrate and the intermediate transfer medium on which the first or second image is formed, the receiving layer side of the intermediate medium facing the printing substrate, and the two are superimposed, and heated and pressed. Before the first or second image is formed A method for producing a printed material for preventing forgery or falsification, wherein the receiving layer of the intermediate transfer medium is transferred to the substrate to be printed. 12. The transfer sheet according to claim 6, wherein the sublimation transfer sheet and the fluorescent heat transfer sheet are both formed on the same or different transfer sheet substrates. A method for producing forged / falsified printed matter.