JP5909847B2 - Intermediate transfer medium, personal authentication medium, and method of manufacturing personal authentication medium - Google Patents

Description

  The present invention relates to an intermediate transfer medium, a personal authentication medium, and a method of manufacturing a personal authentication medium, and more particularly to an intermediate transfer medium, a personal authentication medium, and a method of manufacturing a personal authentication medium using an image display technique that can be used for personal authentication.

  Many personal authentication media such as passports and ID (identification) cards use facial images to enable visual personal authentication.

  Conventionally, for example, in a passport, a photographic paper on which a face image is printed is pasted on a booklet. However, such passports may be tampered with by reprinting photographic prints.

  For this reason, in recent years, there is a tendency to digitize facial image information and reproduce it on a booklet. As this image reproduction method, for example, a thermal transfer recording method using a transfer ribbon has been studied.

  One means for creating a personal authentication medium by the thermal transfer recording method is to form and carry information such as images and characters on an intermediate transfer medium, and further transfer and form it on an information recording transfer medium comprising a substrate. is there.

  An intermediate transfer medium capable of thermal transfer used for creating a personal authentication medium includes a support and a transfer layer in which a release layer, an intermediate layer, an adhesive layer, and the like are sequentially provided on the support. In the use of the intermediate transfer medium, the transfer layer side is superimposed on the substrate of the information recording transfer target body and pressed, and the transfer layer is transferred to the substrate by heating from either the support side or the substrate side.

  A peeling layer is a layer provided in order to implement | achieve these favorable peeling, when the interface of a support body and a transfer layer does not peel well in the case of transcription | transfer by the compatibility of each material.

  The intermediate layer is a layer existing between the adhesive layer and the release layer, and is appropriately designed as necessary. Examples of the intermediate layer include a layer for improving the adhesive force between the two, or a layer for preventing forgery and improving decorativeness, for example, an OVD (Optical Variable Device) forming layer having a diffractive structure.

  The adhesive layer is a layer that adheres to the substrate by heat and pressure, and can be an image receiving layer / adhesive layer that also serves as an image receiving layer that forms information such as images and characters with a heat transfer material.

  The image receiving layer and the image receiving layer / adhesive layer are layers having image receptivity capable of recording image information (including characters and symbols) without a printing plate by a thermal transfer printer or an ink jet printer. It is possible to provide a printed image with a dye or pigment prior to transfer.

  Information is formed on the image-receiving layer / adhesive layer by transferring the intermediate transfer medium to a transfer device, the main part of which is composed of a drum and a thermal head, and the color material layer of the thermal transfer recording medium in which the color material is a heat transfer material. Is brought into contact with the image receiving layer / adhesive layer of the intermediate transfer medium, the thermal head is pressed from the thermal transfer recording medium side, and the heating element group of the thermal head is appropriately heated on the basis of the image data to generate image data. A method of forming and printing an image pattern based on the image receiving layer / adhesive layer is employed.

  An example of a method for transferring an image pattern to a substrate using such an intermediate transfer medium is to bring the adhesive layer or the image receiving layer / adhesive layer of the intermediate transfer medium into contact with the transfer surface of the transfer object, and A heating medium such as a heat roll or a hot plate is pressed from the support side of the intermediate transfer medium, heated to the transfer temperature, and the adhesive layer is pressure-bonded to the substrate to be transferred, and the support of the intermediate transfer medium is peeled off. . Thereby, a personal authentication medium can be obtained.

  On the other hand, in another method for forming information on the image-receiving layer / adhesive layer, a peeling layer on a substrate, an image forming layer formed with a relief hologram or diffraction grating composed of a fine uneven pattern, and the fine unevenness A thermal transfer recording medium provided with a transparent thin film layer and an adhesive layer formed along the surface and having a refractive index higher than that of the image forming layer in this order is prepared. By bringing the adhesive layer side of the thermal transfer recording medium of such a heat transfer material into contact with the image receiving layer / adhesive layer of the intermediate transfer medium and subjecting the thermal transfer recording medium to selective heating based on image information, a relief is obtained. An image pattern of individual information by a mold hologram or a diffraction grating is thermally transferred and recorded on an image receiving layer / adhesive layer of an intermediate transfer medium. After the thermal recording, in order to peel the base material of the thermal transfer recording medium, the peeling layer is positioned on the outermost surface of the image pattern transferred to the intermediate transfer medium.

  By the way, the first intermediate transfer medium using the first intermediate transfer medium to which characters made of coloring materials are transferred and the second intermediate transfer medium to which the image pattern of individual information by the relief type hologram or diffraction grating is transferred is used. It is conceivable to transfer a character or the like of the medium onto a transfer medium and transfer an individual information image pattern by a relief hologram or diffraction grating of the second intermediate transfer medium to obtain a personal authentication medium. This is the case where multiple intermediate transfer recordings are performed with different printing machines, such as when a printing machine is additionally introduced into the conventional printing machine.

  Specifically, the personal authentication medium is manufactured by the following method.

  In the first unit of the printing machine, a first thermal transfer recording medium made of, for example, a color material is prepared, and a first intermediate transfer medium having a release layer and an image receiving layer formed on a support is prepared. The first thermal transfer recording medium is brought into contact with the image receiving layer of the first intermediate transfer medium, and the first thermal transfer recording medium is subjected to selective heating based on information such as characters to thereby change the image pattern of characters or the like to the first intermediate transfer medium. It is formed on the image receiving layer of the transfer medium. Subsequently, the image pattern side such as characters of the first intermediate transfer medium is brought into contact with the transfer surface of the transfer object, and for example, a heating medium such as a heat roll or a hot plate is pressed from the support side and heated to the transfer temperature. Then, the image pattern such as characters of the first intermediate transfer medium is transferred to the substrate which is the transfer target, and then the support of the first intermediate transfer medium is peeled off. After the peeling, the transferred material has a peeling layer on the outermost surface with an image pattern such as a transferred character interposed therebetween.

  Next, according to another method for forming information on the image receiving layer described above in the second unit of the printing press, the image pattern of the individual information by the relief hologram or diffraction grating of the second thermal transfer recording medium is used as the image receiving layer of the second intermediate transfer medium. Then, the substrate of the second thermal transfer recording medium is peeled off. At this time, the release layer is positioned on the outermost surface of the image pattern of the individual information transferred to the second intermediate transfer medium. Subsequently, the image pattern side of the individual information of the second intermediate transfer medium is brought into contact with the image pattern side of the character or the like of the transfer object, and a heating medium such as a heat roll or a hot plate is pressed from the support side to transfer the transfer temperature. Then, the individual information image pattern of the second intermediate transfer medium is transferred to the transfer medium, and then the support of the second intermediate transfer medium is peeled off to manufacture a personal authentication medium.

  However, when the image pattern of the individual information on the second intermediate transfer medium is further transferred to the transfer target to which the image pattern such as characters is transferred, the outermost surface of the transfer target is covered with the release layer, and the second intermediate transfer medium is transferred. Since the outermost surface in the image pattern of the individual information of the transfer medium is also covered with the release layer, the release layers are bonded to each other, and it is almost difficult to adhere to each other. If the adhesion of each layer is lowered in the personal authentication medium, there is a risk of alteration such that the layer is peeled off and replaced. In particular, in passports, it is important to prevent replacement of facial photographs, and strengthening the adhesion of each layer has the effect of preventing counterfeiting.

  In order to prevent this, Patent Document 1 describes an image forming apparatus that performs thermal transfer of an easy-adhesion layer to an intermediate transfer medium when the intermediate transfer medium is transferred to a transfer target. This apparatus has a structure in which an easy-adhesion layer is provided on a thermal transfer recording medium whose color material is a heat transfer material and thermal transfer is performed on an intermediate transfer medium. According to this apparatus, the adhesion to the transfer surface can be improved.

  However, a thermal transfer recording medium capable of thermally transferring and recording an individual information image pattern by a relief hologram or diffraction grating has a more complicated layer structure than a color material thermal transfer recording medium. Since there is a hot embossing process, it is technically and costly disadvantageous to add an easy-adhesion layer to this thermal transfer recording medium.

Japanese Patent No. 3632516

In the present invention, when a transfer layer of a transfer object has a release layer in advance by transfer of another intermediate transfer medium, and when an image receiving layer on which the image forming layer is thermally transferred is further thermally transferred and recorded. to provide between the transfer medium in contact capable enhanced to prevent the forgery of the image receiving layer containing the transfer surface and the image forming layer.

The present invention provides a personal authentication medium by use of a pre-SL during transfer medium.

The present invention provides a method capable of producing a personal authentication medium by a simple process using a pre-SL during transfer medium.

The present invention has a relief hologram or diffraction grating having a fine concavo-convex pattern after having an image receiving layer and an easy adhesion layer on a support, and transferring the easy adhesion layer to the transfer surface of the transfer object. And an intermediate transfer medium used to obtain an image-formed body by transferring the image-forming layer thermally transferred to the image-receiving layer using a heat-sensitive recording medium onto the easy-adhesion layer together with the image-receiving layer, A plurality of peeling layers arranged on the surface of the support at predetermined intervals in the longitudinal direction of the support, a plurality of image receiving layers formed on the peeling layer, and peeling on the surface of the support A plurality of easy-adhesion layers formed in a portion having no layer, and the easy-adhesion layers and the image receiving layers are alternately formed on the support along the longitudinal direction of the support, and the easy-adhesion layers are transparent It can be peeled off from the support by heating, and the transfer target, the image receiving layer, and the image can be removed. Even adhesion caused a by heating to either the formation layer, and the adhesive layer and the image-receiving layer, in which the material structure and thickness, wherein the same der Rukoto each other.

A release layer transferred from a transfer medium different from the intermediate transfer medium is formed on the transfer surface, and the easy-adhesion layer is against the release layer transferred from another transfer medium onto the transfer surface. Adhesiveness may be exhibited by heating.

The support may be further provided with an optically readable positioning mark.

The method for producing a personal authentication medium according to the present invention is an intermediate transfer medium in which a transferable image-receiving layer and an easy-adhesion layer are provided on a support, and the image-receiving layer has a fine uneven pattern. An intermediate transfer medium having a thermal transfer image thermally transferred using a thermal transfer recording medium in which an image forming layer comprising a relief hologram or diffraction grating is formed on a support different from the support of the intermediate transfer medium. a step of preparing, are transferred and transferring the adhesive layer of the prepared intermediate transfer medium to a transfer surface of the transfer material, the surface of the image receiving layer thermal transfer image has been recorded on the transferred surface of the transferred body A step of transferring the thermal transfer image together with the image receiving layer onto the transfer medium by applying heat and pressure to the easy adhesion layer, and using the above intermediate transfer medium as an intermediate transfer medium.

The personal authentication medium may further include a transmissive reflective film that is formed along the uneven pattern of the image forming layer and has a refractive index different from the refractive index of the image forming layer.

The image forming body may include a face image.

In addition, a method for producing a personal authentication medium formed on a transfer surface of a transfer object according to the present invention includes a release layer and a relief hologram or diffraction grating composed of a fine uneven pattern on a support. A first thermal transfer recording medium having an image forming layer and an adhesive layer formed in this order, a long belt-like support, and a surface of the support with a predetermined interval in the longitudinal direction of the support. A first intermediate comprising a plurality of release layers arranged at intervals, a plurality of image receiving layers formed on the release layer, and a plurality of easy-adhesion layers formed on the surface of the support where there is no release layer It is a transfer medium, and an easy-adhesion layer and an image receiving layer are alternately formed on the support along the longitudinal direction of the support. The easy-adhesion layer is transparent and can be peeled off from the support by heating. And any of the transfer target, the image receiving layer, and the image forming layer Even adhesion caused a by heating, and the adhesive layer and the image receiving layer, a step of preparing a first intermediate transfer medium material composition and thickness from each other to be the same as, the image-receiving layer of the first intermediate transfer medium The first thermal transfer recording medium is overlaid and selectively heated based on the image information from the support side of the first thermal transfer recording medium, and the first image including the image forming layer on the image receiving layer of the first intermediate transfer medium. A pattern is thermally transferred, and an easy-adhesion layer of the first intermediate transfer medium is superimposed on the transfer surface, and selective heating is performed on at least one of the first intermediate transfer medium and the transfer surface on the transfer surface. A step of thermally transferring the easy-adhesion layer; and an image-receiving layer of the first intermediate transfer medium having the first image pattern transferred thereon is superposed on the easy-adhesion layer transferred onto the transfer surface, and the first intermediate transfer medium and the transfer surface By heating and pressurizing at least either side of The image pattern is transferred together with the image-receiving layer and the release layer of the first intermediate transfer medium onto the adhesive layer on the transfer surface is intended to include a step of obtaining an image forming body.

A step of preparing a second thermal transfer recording medium in which a color material capable of thermal transfer is laminated on a support, and a step of preparing a second intermediate transfer medium in which a peeling layer and an image receiving layer are laminated in this order on the support. The second heat-sensitive transfer recording medium is overlaid on the image-receiving layer of the second intermediate transfer medium, and selective heating based on image information is applied from the support side of the second heat-sensitive recording medium to the image-receiving layer of the second intermediate transfer medium. Before the step of thermally transferring the second image pattern made of the color material and the step of thermally transferring the easy adhesion layer of the first intermediate transfer medium onto the transfer surface, the second intermediate transfer medium on which the second image pattern is transferred The image receiving layer is superimposed on the surface to be transferred, and at least one of the second intermediate transfer medium and the surface to be transferred is heated and pressed to form the image receiving layer of the second heat transfer recording medium and the image receiving layer of the second heat transfer recording medium. The transferred second image pattern and the second intermediate transfer medium A release layer may further comprise the step of transferring onto a transfer surface.

According to the onset bright, formed easy-adhesion layer is arranged in a plane direction of the support with the image-receiving layer on a support, a readily adhesive layer is releasable from the support by heating, and the transfer target body and An intermediate that can firmly adhere to the transfer surface of the transfer object by providing adhesiveness to both the image receiving layer and the image forming layer transferred to the image receiving layer as a thermal transfer image by heating. A transfer medium can be provided.

According to the onset bright, said support forms a strip, the order the adhesive layer and the image receiving layer is formed alternately along the longitudinal direction of the support on the support, the of the transfer member An intermediate transfer medium having a form of a hoop (rolled body) capable of continuously supplying an image receiving layer having an easy adhesion layer to a transfer surface and an image forming layer transferred as a thermal transfer image can be provided.

According to the onset bright, easy adhesive to be transferred to the transferred surface of even when the release layer is formed in the transfer to another intermediate transfer medium member to a transfer surface, then the transfer of the transferred object because the layer having adhesion to the release layer can provide an intermediate transfer medium as a medium between inside that can be firmly adhered to the transferred surface of the transferred body.

According to the present invention, the adhesive layer and the image receiving layer, is the same in material structure and thickness to each other physician, to form an easy-adhesion layer and the image receiving layer in one coating step on a support Possible intermediate transfer media can be provided.

According to the onset bright, by providing in response to optically position the the adhesion layer image receiving layer are arranged in the surface direction of the support readable positioning marks to the support, adhesive layer and An intermediate transfer medium capable of accurately transferring the image receiving layer to the transfer surface of the transfer target can be provided.

According to the onset bright, the formed along the fine irregular surface permeable reflective layer image forming layer composed of a fine concavo-convex pattern of the thermal transfer recording medium, the transmissive reflection layer of the image-forming layer By having a refractive index different from the refractive index, the brightness of the image from the image forming layer can be made brighter, and therefore, for example, it is possible to provide an intermediate transfer medium that makes it easier to discriminate personal identification and enables authentication with higher accuracy.

According to the onset bright, can strongly adhered to the transferred surface of the transferred object, by use of an intermediate transfer medium capable of preventing the forgery, high security which make it difficult to counterfeit and falsification personal authentication medium Can provide.

According to the onset bright, because the image formation body is a personal information including a face image to be personal authentication, the examiner which performs the personal identification is more easily discriminated against fraud, and to more precisely authentication It is possible to provide a personal authentication medium that can be used.

According to the onset bright, it can provide a method capable of easily producing a high personal authentication medium-security that is difficult to counterfeit and falsification.

1 is a cross-sectional view schematically showing a thermal transfer recording medium according to an aspect of the present invention. 1 is a schematic view illustrating an intermediate transfer medium according to an aspect of the present invention. FIG. 3 is a cross-sectional view schematically showing the intermediate transfer medium in FIG. 2. FIG. 4 is a cross-sectional view schematically showing a state where the thermal transfer recording medium shown in FIG. 1 is thermally transferred to the intermediate transfer medium shown in FIG. 3. FIG. 5 is a cross-sectional view schematically showing a state where the intermediate transfer medium shown in FIG. 4 is transferred to a transfer target. It is the schematic which shows an example of the printing machine used for manufacture of the personal authentication medium which concerns on 1 aspect of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same referential mark is attached | subjected to the component which exhibits the same or similar function through all the drawings, and the overlapping description is abbreviate | omitted.

  FIG. 1 is a cross-sectional view schematically showing a thermal transfer recording medium according to one embodiment of the present invention.

  In the thermal transfer recording medium 10, a back coat 11 is formed on the back surface of a support 12, and a release layer 13, an image forming layer 14, a transmissive thin film layer 15 and an adhesive layer 16 are laminated on the surface of the support 12 in this order. It has a structure.

  The support 12 is, for example, a resin film or a sheet. The support 12 is made of a material having excellent heat resistance such as polyethylene terephthalate.

  The back coat 11 is provided to increase the adhesion to the thermal head, smooth the sliding, and improve the thermal conductivity. For example, silicon acrylate can be used.

  The release layer 13 serves to stabilize the release of the image forming layer 14 from the support 12. The release layer 13 is light transmissive and typically transparent. The release layer 13 can be made of, for example, a thermoplastic resin. The release layer 13 may be replaced with a release layer containing, for example, a fluororesin or a silicone resin.

  The image forming layer 14 includes at least one of a hologram and a diffraction grating as a diffraction structure. Here, the image forming layer 14 is a transparent layer having a relief structure as a diffractive structure on its surface. Examples of the material of the transparent layer include a photocurable resin, a thermosetting resin, or a thermoplastic resin. The image forming layer 14 may be a volume hologram.

  The transmissive thin film layer 15 is made of, for example, a transparent material having a refractive index different from that of the image forming layer 14. The luminance displayed by the diffraction structure of the image forming layer is improved, and the visibility of the image can be improved. The transparent reflective layer may have a single layer structure or a multilayer structure. In the latter case, the transmissive thin film layer may be designed to repeatedly cause reflection interference. The permeable thin film layer can be made from a transparent dielectric such as zinc sulfide and titanium dioxide. The transparent thin film layer can be formed by a vacuum film forming method such as vacuum evaporation or sputtering.

  The transmissive thin film layer 15 may be a metal layer having a thickness of less than 20 nm. The metal layer can be made from elemental metals such as chromium, nickel, aluminum, iron, titanium, silver, gold and copper or alloys thereof.

  The transmissive thin film layer 15 can be omitted.

  The adhesive layer 16 is made of, for example, a thermoplastic resin.

  2 is a schematic view showing an intermediate transfer medium according to one embodiment of the present invention, and FIG. 3 is a cross-sectional view schematically showing the intermediate transfer medium of FIG. The intermediate transfer medium 20 has, for example, a belt shape and a shape in which the other end is wound. As shown in FIG. 3, the intermediate transfer medium 20 has a structure in which an easily adhesive layer 22 and an image receiving layer 23 are alternately arranged on a belt-like support 21 in the surface direction of the support 21. A release layer 24 is disposed on the support 21 under the image receiving layer 23. Further, an optically readable positioning mark 25 is provided at a position of the support 21 corresponding to the position of the easy adhesion layer 22 or the image receiving layer 23.

  The easy adhesion layer 22 and the image receiving layer 23 have the same material configuration and the same thickness as shown in FIG. In such a case, the easy-adhesion layer 22 and the image receiving layer 23 can be formed on the support 21 (the image receiving layer 23 is formed on the release layer 24) by a single coating, and the intermediate transfer medium 20 can be easily manufactured. Become.

  The easy-adhesion layer 22 is transparent, can be peeled off from the support 21 by heating, and adheres to both the transfer target and the image receiving layer 23 and the image forming layer transferred from the thermal transfer recording medium by heating. Exhibits sex. The easy-adhesion layer 22 also exhibits adhesiveness to the release layer by heating when a release layer is present on the transfer surface of the transfer object. The easy adhesion layer 22 can be made from a mixed resin mainly including, for example, a urethane resin, an acrylic resin, an epoxy resin, and the like.

  The image receiving layer 23 is a layer having an image receiving ability that can be transferred and recorded by the image forming layer 14, the transmissive thin film layer 15, and the adhesive layer 16 of the thermal transfer recording medium 10. The image receiving layer 23 can be made of, for example, a mixed resin mainly including a urethane resin, an acrylic resin, an epoxy resin, and the like.

  The peeling layer 24 is a layer provided for realizing good peeling when the interface between the support 21 and the image receiving layer 23 is not peeled off at the time of transfer due to the compatibility of the respective materials. is there. The release layer 24 can be made of, for example, a thermoplastic resin. The release layer 24 may be replaced with a release layer containing, for example, a fluororesin or a silicone resin. The release layer 24 is made of a material that also serves as a protective layer because it becomes the outermost surface when the support 21 is peeled after the transfer to the transfer surface of the transfer target.

  It is preferable that the easy-adhesion layer 22 and the image receiving layer 23 have the same shape and have an area larger than the transfer area (effective transfer area) at the time of thermal transfer.

  An intermediate layer is allowed to intervene between the peeling layer 24 and the image receiving layer 23 as necessary. Examples of the intermediate layer include a layer for improving the adhesive force between the two, or a layer for preventing forgery and improving decorativeness, for example, an OVD (Optical Variable Device) forming layer having a diffractive structure.

  In addition, the arrangement | positioning of the surface direction of the support body of the easily bonding layer 22 and the image receiving layer 23 is not restricted to the form where those layers adjoin alternately, but may be random.

  Next, an example of use of the intermediate transfer medium shown in FIGS. 2 and 3 described above, that is, an example applied to manufacture of a personal authentication medium will be described with reference to FIGS.

  First, as shown in FIG. 4, the adhesive layer 16 of the thermal transfer recording medium 10 (shown in FIG. 1) is brought into intimate contact with the effective transfer region of the image receiving layer 23 of the intermediate transfer medium 20 (shown in FIG. 2). By performing printing from the coat 11 side with a thermal head, the printing unit 40 is thermally transferred to the image receiving layer 23 of the intermediate transfer medium 20, and the backcoat layer 11 and the support 12 of the thermal transfer recording medium 10 are peeled from the peeling layer 13. Here, the printing unit 40 has a structure in which the adhesive layer 16, the transmissive thin film layer 15, the image forming layer 14, and the release layer 13 integrated with the image receiving layer 23 by heat melting are laminated in this order. Located on the outermost surface.

  Next, as shown in FIG. 5, a transfer body 50 is prepared in which an image pattern (not shown) such as characters and a release layer 52 (outermost surface) are transferred from another intermediate transfer medium to the substrate 51. The easy-adhesion layer 22 of the intermediate transfer medium 20 shown in FIGS. 3 and 4 is thermally transferred to the release layer 52 of the transfer body 50. Further, the printing portion 40 and the image receiving layer 23 thermally transferred to the image receiving layer 23 of the intermediate transfer medium 20 shown in FIG. Thereafter, the personal authentication medium is obtained by peeling the support 21 of the intermediate transfer medium 20 from the peeling layer 24.

  The intermediate transfer medium 20 according to one embodiment of the present invention described above has a structure in which the easy-adhesion layer 22 and the image receiving layer 23 are arranged on the support 21 in the surface direction of the support 21. (When the peeling layer 13 is located on the outermost surface) is thermally transferred, and when the print unit 40 is thermally transferred to the transfer surface of the transfer target, the print unit 40 and the image receiving layer 23 are transferred via the easy adhesion layer 22. It becomes possible to adhere well to the body.

  That is, as shown in FIG. 4, when the printing unit 40 is thermally transferred to the image receiving layer 23 of the intermediate transfer medium 20, the release layer 13 of the thermal transfer recording medium 10 is located on the outermost surface. If such a printing unit 40 is transferred as it is to a transfer medium, adhesion failure may occur at the peeling layer 13 portion. In particular, as shown in FIG. 5, when the transfer target 50 is printed by intermediate transfer and the peeling layer 52 exists on the outermost surface, the peeling layer 52 and the peeling layer 13 of the printing unit 40 come into contact with each other. Therefore, it is almost difficult to adhere them.

  For this reason, the intermediate transfer medium 20 according to one embodiment of the present invention has a structure in which the image receiving layer 23 and the easy adhesion layer 22 are arranged on the support 21 in the surface direction of the support 21, as shown in FIG. Even if the peeling layer 13 is positioned on the outermost surface of the printing unit 40 by transferring in advance to the peeling layer 52 that is the transfer surface using the easy adhesion layer 22, the peeling layer 13 of the printing unit 40 and the transferred object 50, since the easy-adhesion layer 22 can be interposed between them without directly contacting the outermost peeling layer 52, the printed portion 40 can be satisfactorily adhered to the transferred material 50 via the easy-adhesion layer 22, At the same time, the image receiving layer 23 can also be satisfactorily adhered to the transfer medium 50 via the easy adhesion layer 22. As a result, it is possible to obtain a personal authentication medium having a high effect of preventing alteration of the printing unit 40 serving as personal information.

  Further, if the easy-adhesion layer 22 and the image receiving layer 23 are made of the same material, when the print portion 40 is thermally transferred to the transfer surface of the transfer target, the easy-adhesion layer 22 is used to transfer it to the transfer surface in advance. As a result, the image receiving layer 23 to which the printing unit 40 is thermally transferred and the easy-adhesion layer 22 are integrated and firmly adhered, so that the printing unit 40 is embedded in a form sandwiched between the image-receiving layer 23 and the easy-adhesion layer 22. it can. As a result, it is possible to obtain a personal authentication medium in which it is more difficult to falsify the printing unit 40 that is personal information.

  By peeling off the support 21 of the intermediate transfer medium 20, the release layer 24 remains on the outermost surface, and a personal authentication medium that achieves the improvement of durability and the effect of preventing tampering by playing the role of protecting the surface is obtained. be able to.

  Next, a method for manufacturing a personal authentication medium according to an aspect of the present invention will be described with reference to FIG. FIG. 6 is a schematic diagram illustrating an example of a printing apparatus used in the method for manufacturing a personal authentication medium according to an aspect of the present invention.

  This printing apparatus includes a first unit 110 and a second unit 210.

  The first unit 110 includes an ink ribbon 111 that is a first thermal transfer recording medium made of a color material and a first intermediate medium 112. The ink ribbon 111 passes between the platen roll 114 serving as the first printing unit and the first thermal head 115 from the supply unit 113 and is wound up by the winding unit 116. The first intermediate transfer medium 112 passes from the supply unit 117 between the platen roll 114 and the ink ribbon 111, and further passes between the laminating roll 118 and the heat roll 119, which are the first transfer unit, and passes through the winding unit 120. It is wound up. The supply unit 117 and the winding unit 120 are reversible, and the first intermediate medium 112 is movable in the forward direction and the reverse direction.

  The first intermediate transfer medium 112 has a configuration in which a peeling layer and an image receiving layer are formed in this order on a support.

  The second unit 210 includes a second thermal transfer recording medium 211 and a second intermediate transfer medium 212. The second thermal transfer recording medium 211 passes between the platen roll 214 as the second printing unit and the second thermal head 215 from the supply unit 213 and is wound up by the winding unit 216. The second intermediate transfer medium 212 passes from the supply unit 217 between the platen roll 214 and the second thermal transfer recording medium 211, and further passes between the laminating roll 218 and the heat roll 219 as the second transfer unit. It is wound up by the take-up unit 220. A transport belt 221 is disposed in the second unit 210. As will be described later, the conveyance belt 221 conveys a transfer target (for example, a passport booklet) on which an image pattern such as characters is thermally transferred by the first unit 110 to the second transfer unit. The supply unit 217 and the winding unit 220 are reversible, and the second intermediate medium 212 is movable in the forward direction and the reverse direction.

  The second thermal transfer recording medium 211 has the same structure as in FIG. 1 described above, that is, the back coat 11 is formed on the back surface of the support 12, and the release layer 13 is formed on the surface of the support and a fine uneven pattern. It has a structure in which an image forming layer 14 made of a relief hologram or diffraction grating, a transparent thin film layer 15 and an adhesive layer 16 are laminated in this order.

  The second intermediate transfer medium 212 has a structure similar to that shown in FIGS. 3 and 4 described above, that is, a structure in which the easily adhesive layer 22 and the image receiving layer 23 are alternately arranged on the support 21 in the surface direction of the support 21. A release layer 24 is disposed on the support 21 under the image receiving layer 23. Further, an optically readable positioning mark 25 is provided at a position of the support 21 corresponding to the position of the easy adhesion layer 22 or the image receiving layer 23.

  First, the ink ribbon 111 which is the first thermal transfer recording medium supplied from the supply unit 113 in the first unit 110 and the image receiving layer of the first intermediate medium 112 supplied from the supply unit 117 are combined with the platen roll 114 and the thermal unit. First, the thermal head 115 is moved to the ink ribbon 111 side and selectively heated based on the image information by the heating element group to cause the ink ribbon 111 to generate heat appropriately. An image pattern such as letters is thermally transferred to the image receiving layer. Subsequently, the first intermediate transfer medium 112 is wound by the winding unit 120 to a desired length, and the image pattern of the first intermediate transfer medium 112 is transferred between the laminating roll 118 and the heat roll 119 of the first transfer unit. It is brought into close contact with a certain passport booklet 300 and heated and pressed by a laminate roll 118 and a heat roll 119 to thermally transfer the image pattern of the first intermediate medium 112 to the booklet 300 together with the image receiving layer and the release layer. At this time, the release layer is located on the outermost surface of the image pattern thermally transferred to the booklet 300.

  Next, the adhesive layer of the second thermal transfer recording medium 211 supplied from the supply unit 213 and the image receiving layer of the second intermediate medium 212 supplied from the supply unit 217 in the second unit 210 are combined with the platen roll 214, the thermal head 215, and the like. The thermal head 215 is moved to the back coat 11 side of the second thermal transfer recording medium 211 and selectively heated based on the image information by the heating element group to appropriately generate heat, and the second intermediate transfer medium An image pattern of personal information (a laminate of an adhesive layer, a transmissive thin film layer, an image forming layer, and a release layer) is thermally transferred from the second thermal transfer recording medium 211 to the image receiving layer 212. At this time, the image pattern transferred to the second intermediate transfer medium 212 has a release layer on the outermost surface. Subsequently, the winding unit 220 winds up the second intermediate transfer medium 212 to a desired length, and the easy-adhesion layer (arranged adjacent to the preceding stage of the image receiving layer) of the second intermediate transfer medium 212 is placed in the second transfer unit. The laminating roll 218 and the heat roll 219 are brought into close contact with the passport booklet 300 conveyed by the conveying belt 221 and heated and pressed by the laminating roll 218 and the heat roll 219 to form the easy adhesion layer of the second intermediate medium 212 as the booklet 300. Heat transfer to. Subsequently, the close contact between the second intermediate medium 212 and the booklet 300 is released, the booklet 300 is moved by the conveyor belt 221 before the laminating roll 218 and the heat roll 219, and the second intermediate transfer medium 212 is desired by the winding unit 220. The personal information image pattern of the second intermediate transfer medium 212 is closely attached to the booklet 300 side between the laminating roll 218 and the heat roll 219, and heated and pressed between the laminating roll 218 and the heat roll 219 for the first time. 2 The image pattern of the intermediate medium 212 is thermally transferred to the booklet 300 together with the image receiving layer and the release layer, and a personal authentication medium having a character image pattern and an image forming body of individual information is manufactured. The positioning mark provided on the support of the second intermediate transfer medium 212 is used for the alignment of the easy adhesion layer of the second intermediate transfer medium 212 and the booklet and the alignment of the image receiving layer of the second intermediate transfer medium 212 and the booklet. This is performed by reading with the sensor 230.

  Through the above-described process, when an image pattern such as characters is thermally transferred to the passport booklet 300 in the first unit 110 by the first intermediate transfer medium 112, the release layer is positioned on the outermost surface of the transferred image pattern, and the second unit In 210, even if a release layer is located on the outermost surface of the image pattern of personal information thermally transferred to the second intermediate transfer medium 212 by the second thermal transfer recording medium 211, the passport booklet 300 conveyed from the first unit 110 has the second 2 The first unit is obtained by thermally transferring the easy-adhesion layer of the second intermediate transfer medium 212 to the booklet 300 before thermally transferring the image pattern of the personal information on the intermediate transfer medium 212 (the peeling layer is located on the outermost surface). 110, the image pattern is thermally transferred to the passport booklet 300 by the first intermediate transfer medium 112, and then transferred to the second unit 210. Passport for an image pattern of the second intermediate transfer medium 212 in the booklet 300 can transfer in strong adhesion can be produced personal authentication medium high security which make it difficult to counterfeit and falsification Te.

  In the method for manufacturing a personal authentication medium according to one aspect described above, printing is performed continuously using two units. However, it is also possible to additionally print on a booklet that has already been printed by a different apparatus. In particular, since it is a huge amount of money to replace the printing machine in a passport or the like, it is possible to reduce the cost of the printing machine by introducing a device in addition to the conventional printing machine.

  The present invention relates to an intermediate transfer medium used for production of an image forming body that prints, prints, and draws a face image and a fingerprint that are personally important on an article with an image forming body such as a passport or a visa. Personal authentication information such as image information such as the face of the owner and fingerprint image is configured by arranging multiple cells with diffraction gratings, and colored layers with colored patterns and line patterns are provided on the upper and lower layers, Furthermore, by strengthening the close contact with these layers, it is difficult to forge and tamper, and it is easier for the examiner who performs personal identification to identify fraudulent acts and more accurately authenticate. it can.

  DESCRIPTION OF SYMBOLS 10 ... Thermal transfer recording medium, 11, 21 ... Support body, 13, 24 ... Release layer, 14 ... Image forming layer, 20 ... Intermediate transfer medium, 22 ... Easy adhesion layer, 23 ... Image receiving layer, 50 ... Transfer object, DESCRIPTION OF SYMBOLS 51 ... Base material, 110 ... 1st unit, 111 ... Ink ribbon, 112 ... 1st intermediate transfer medium, 210 ... 1st unit, 211 ... 2nd volume thermal transfer medium, 112 ... 1st intermediate transfer medium, 300 ... Passport booklet (Transfer material).

Claims (8)

An image receiving layer and an easy-adhesion layer on a support, and after the transfer of the easy-adhesion layer to a transfer surface of a transfer object, a relief hologram or diffraction grating composed of a fine concavo-convex pattern, and An intermediate transfer medium used for transferring an image forming layer thermally transferred to the image receiving layer using a thermal recording medium onto the easy-adhesion layer together with the image receiving layer to obtain an image formed body,
A long belt-like support;
A plurality of release layers arranged on the surface of the support at predetermined intervals in the longitudinal direction of the support;
A plurality of the image receiving layers formed on the release layer;
A plurality of the easy-adhesion layers formed on a portion of the surface of the support that does not have the release layer;
The easy adhesion layer and the image receiving layer are alternately formed on the support along the longitudinal direction of the support,
The easy-adhesion layer is transparent, can be peeled off from the support by heating, and exhibits adhesiveness by heating to any of the transfer target, the image receiving layer, and the image forming layer,
The intermediate transfer medium, wherein the easy adhesion layer and the image receiving layer have the same material structure and thickness. A release layer transferred from a transfer medium different from the intermediate transfer medium is formed on the transfer surface,
The intermediate transfer medium according to claim 1, wherein the easy-adhesion layer exhibits adhesiveness by heating with respect to a release layer transferred onto the transfer surface from the another transfer medium.   The intermediate transfer medium according to claim 1, wherein an optically readable positioning mark is further provided on the support. A method of manufacturing a personal authentication medium,
An intermediate transfer medium having a transferable image-receiving layer and an easy-adhesion layer provided on a support, and an image forming layer comprising a relief hologram or diffraction grating composed of a fine concavo-convex pattern on the image-receiving layer. a step of preparing an intermediate transfer medium having a thermal transfer image which is thermally transferred to the support of the intermediate transfer medium by using a thermal transfer recording medium comprising formed on another support,
A step of transferring the adhesive layer of the prepared intermediate transfer medium to a transfer surface of the transfer member,
Again toward the surface of the pre-Symbol sensitive image receiving layer thermal transfer image has been recorded on the easy adhesion layer transferred to the transferred surface of the transferred object, the thermal transfer image together with the image-receiving layer by heating and pressurizing A step of transferring the material onto the transferred material,
A method for producing a personal authentication medium , wherein the intermediate transfer medium according to claim 1 is used as the intermediate transfer medium. 5. The personal authentication medium according to claim 4, further comprising a transmissive reflective film formed along the uneven pattern of the image forming layer and having a refractive index different from a refractive index of the image forming layer. Manufacturing method . 6. The method for manufacturing a personal authentication medium according to claim 4, wherein the image forming body includes a face image. A method of manufacturing a personal authentication medium formed on a transfer surface of a transfer object,
Preparing a first thermal transfer recording medium in which a release layer, an image forming layer comprising a relief hologram or diffraction grating composed of a fine uneven pattern, and an adhesive layer are formed in this order on a support; and ,
A strip-shaped support, a plurality of release layers arranged on the surface of the support at predetermined intervals in the longitudinal direction of the support, and a plurality of image receiving layers formed on the release layer; A first intermediate transfer medium comprising a plurality of easy-adhesion layers formed on the surface of the support without the release layer, wherein the easy-adhesion layer and the image receiving layer are on the support, It is alternately formed along the longitudinal direction of the support, the easy-adhesion layer is transparent, can be peeled off from the support by heating, and the transfer target, the image receiving layer, and the image forming layer A first intermediate transfer medium that exhibits adhesiveness by heating, and the easy-adhesion layer and the image-receiving layer have the same material configuration and thickness; and
The first thermal transfer recording medium is overlaid on the image receiving layer of the first intermediate transfer medium, and selective heating based on image information is performed from the support side of the first thermal transfer recording medium, thereby the first intermediate transfer medium. Thermally transferring a first image pattern including the image forming layer to an image receiving layer of a transfer medium;
The easy-adhesion layer of the first intermediate transfer medium is overlaid on the transfer surface, and selective heating is performed from at least one of the first intermediate transfer medium and the transfer surface, and the transfer surface is placed on the transfer surface. A process of thermally transferring the easy adhesion layer;
An image receiving layer of the first intermediate transfer medium on which the first image pattern is transferred is superposed on the easy-adhesion layer transferred onto the transfer surface, and at least one of the first intermediate transfer medium and the transfer surface. Transferring the first image pattern onto the easy-adhesion layer on the transfer surface together with the image receiving layer and the release layer of the first intermediate transfer medium by heating and pressurizing one side to obtain an image forming body; A method of manufacturing a personal authentication medium, comprising: Preparing a second thermal transfer recording medium in which a heat transferable color material is laminated on a support;
Preparing a second intermediate transfer medium in which a release layer and an image receiving layer are laminated in this order on a support;
The second heat-sensitive transfer recording medium is superimposed on the image-receiving layer of the second intermediate transfer medium, and selective heating based on image information is performed from the support side of the second heat-sensitive recording medium to receive the image of the second intermediate transfer medium. Thermally transferring a second image pattern made of the color material on the layer;
Prior to the step of thermally transferring the easy-adhesion layer of the first intermediate transfer medium onto the transfer surface, the image receiving layer of the second intermediate transfer medium onto which the second image pattern has been transferred is overlaid on the transfer surface. The second intermediate transfer medium and the transferred surface are heated and pressed to apply an image to the image receiving layer of the second thermal transfer recording medium and the second image transferred to the image receiving layer of the second thermal transfer recording medium. The method for manufacturing a personal authentication medium according to claim 7, further comprising a step of transferring an image pattern and a release layer of the second intermediate transfer medium onto the transfer surface.

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