JP4177580B2 - Intermediate transfer recording medium - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an intermediate transfer recording medium on which an image is once recorded on a receiving layer, and then the receiving layer is transferred to a transfer medium to form a printed matter, and in particular, detection for setting an image forming position. The present invention relates to an intermediate transfer recording medium provided with a mark.
[0002]
[Prior art]
This type of intermediate transfer recording medium records an image on the receiving layer by a thermal transfer recording method using a thermal transfer sheet provided with a color material layer, so a high-quality image may be formed depending on the constituent material of the receiving layer. can do.
In addition, this intermediate transfer recording medium can be used as a receiving layer having excellent adhesiveness to the transferred material, or the receiving layer can be transferred to the transferred material with good adhesiveness through the adhesive layer. The coloring material is preferably used for a transfer target that is difficult to transfer a color material and cannot directly form a high-quality image, or a transfer target that is easily fused to a color material layer during thermal transfer.
[0003]
FIG. 10 is a cross-sectional view schematically showing an example of the intermediate transfer recording medium.
The intermediate transfer recording medium 101 includes a base film 102 and a transfer portion 112 having at least a receiving layer 105.
The receiving layer 105 is thermally transferred using a thermal transfer sheet provided with a color material layer, whereby an image 106 is formed. After the image 106 is formed on the receiving layer 105, the transfer unit 112 is peeled off from the base film 102 and transferred onto the transfer target, thereby forming the target image 106 on the transfer target.
[0004]
This intermediate transfer recording medium can transfer and form a high-resolution and high-quality image on the transfer target. In addition, this intermediate transfer recording medium is preliminarily filled in or printed with necessary items such as signatures on a transfer object, and then transferred to a transfer portion on which images such as characters and photographs are formed. A print can also be created. Therefore, this intermediate transfer recording medium can be preferably used for the production of printed matter such as identification cards such as passports, credit cards, and ID cards.
[0005]
The printed matter such as the passport and the credit card described above is required to have security, that is, high reliability and safety that are difficult to forge or tamper. For this reason, various ideas have been made so that it is difficult to forge or tamper with copying.
[0006]
For example, in order to prevent forgery / falsification of printed matter, an intermediate transfer recording medium in which a hologram pattern, micro characters, and the like are provided in a transfer portion has been proposed, and the hologram pattern and micro characters provided in the transfer portion are Proposals have been made to prevent forgery and falsification of images such as characters and facial photographs formed on printed matter by transferring them together with the image onto a transfer medium.
[0007]
However, the proposed intermediate transfer recording medium has a joint where the hologram pattern is interrupted between the hologram pattern and the hologram pattern when the hologram pattern is sequentially made. Appears at regular intervals. In addition, since an image is formed on the receiving layer of the intermediate transfer recording medium without consideration of avoiding such a joint of the hologram pattern, an image may be formed at the joint portion of the hologram pattern. . This printed product is not particularly preferred in the case of a printed product that has a reduced commercial value and requires high reliability and safety such as a passport because a joint of hologram patterns appears on the image.
[0008]
In order to solve this problem, Japanese Patent Application Laid-Open No. 11-254844 forms a hologram mark for setting an image formation position for each formed hologram pattern, and detects the hologram mark to detect the hologram pattern. It has been proposed to prevent the formation of an image on the joint.
[0009]
[Problems to be solved by the invention]
However, Japanese Patent Laid-Open No. 11-254844 provides a hologram mark (position detection mark) corresponding to the transferred pattern, but in the case of transferring a different pattern to the front and back of the card, etc. The pattern of could not be distinguished.
In particular, when an intermediate transfer recording medium wound in a roll shape is used from the middle, the images corresponding to the front and back surfaces cannot be detected, and there is a possibility that an error occurs in the transfer order.
[0010]
An object of the present invention is to provide an intermediate transfer medium capable of distinguishing each pattern even when different patterns are transferred by a transfer unit.
[0011]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention of claim 1 is provided so as to be peelable on the base film and the base film, Different shape Receiving layer on which multiple images are formed And a hologram layer provided with a plurality of hologram patterns corresponding to each of the plurality of images having different shapes An intermediate transfer recording medium for transferring the image to a transfer target after forming an image on the receiving layer of the transfer portion, and provided in the transfer portion, Each of the hologram patterns corresponding to each of the plurality of images having different shapes is formed with a relative position corresponding to each of the plurality of images having different shapes. Providing a plurality of hologram marks formed with the same hologram as the hologram pattern in the process; Is an intermediate transfer recording medium.
[0013]
Claim 2 The intermediate transfer recording medium according to claim 1, wherein the transfer object is a card, The plurality of images having different shapes are alternately arranged in the receiving layer, and are images having different shapes for the front surface and the back surface of the card, and the plurality of hologram patterns are for the front surface and the back surface of the card. Two types of corresponding patterns, Above Multiple hologram marks Corresponds to the front side and back side of the card shape The intermediate transfer recording medium is characterized in that the marks are different from each other.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in more detail with reference to the drawings.
(Embodiment of Intermediate Transfer Recording Medium)
FIG. 1 is a cross-sectional view showing an embodiment of an intermediate transfer recording medium according to the present invention.
The intermediate transfer recording medium 1 </ b> A includes a base film 2 and a transfer portion 12 provided on the base film 2 so as to be peelable.
The transfer unit 12 has at least a receiving layer 5 on which an image is formed. From the base film 2 side, a release layer 3, a protective layer 4, a hologram layer 7, a transparent vapor deposition layer 8, an anchor layer 9, and a receiving layer 5 are arranged in this order. Are stacked.
[0015]
As shown in FIG. 2 described later, the hologram layer 7 has a plurality of different hologram patterns 21 (21A, 21B) and a plurality of different hologram marks 22 provided for each of the hologram patterns 21 (21A, 21B). (22A, 22B) are formed.
In addition, micro characters and chromatic patterns can be formed on the transfer portion 12. This intermediate transfer recording medium 1A is used for transferring a transfer portion 12 after the image 6 is formed onto a transfer target to obtain a printed matter.
[0016]
Layers other than the receiving layer 5 and the hologram layer 7 provided in the transfer portion 12, for example, the release layer 3, the protective layer 4, and the anchor layer 9 are not necessarily essential layers. It is appropriately selected depending on the use mode and the like, and is not particularly limited. Therefore, instead of these layers or in addition to these layers, a layer having a specific action such as an ultraviolet absorbing layer can be appropriately selected and provided. The transparent vapor deposition layer 8 and the anchor layer 9 are usually provided together with the hologram layer 7.
[0017]
FIG. 2 is a plan view showing the intermediate transfer recording medium according to the present embodiment.
In the intermediate transfer recording medium 1B, two different types of hologram patterns 21A and 21B and two different types of hologram marks 22A and 22B provided for each of the hologram patterns 21 are fixed relative to the hologram layer 7. It is formed in a positional relationship.
In the present embodiment, the hologram patterns 21A and 21B are formed with two different patterns corresponding to a pattern for the front surface of a card, which is a transfer target, which will be described later, and a pattern for the back surface.
The hologram marks 22A and 22B are formed with two types of position detection marks having different lengths provided corresponding to the hologram patterns 21A and 21B.
[0018]
The hologram pattern 21 is provided in order to improve the decorativeness of the printed matter finally formed or to prevent forgery or alteration since it is difficult to copy, and in particular, like a passport or the like. It is preferably used when high reliability and safety are required for the printed matter.
[0019]
The size and shape of the hologram pattern 21 are not particularly limited because they differ depending on the required form of the printed material. As a method of forming the hologram pattern 21, a conventionally known method, for example, an original plate provided with an uneven pattern of hologram interference fringes is used, and fine unevenness is formed by embossing.
[0020]
The hologram mark 22 is formed with a certain relative positional relationship for each hologram pattern 21 at the same time as the formation of the hologram pattern 21 in the same process as the formation of the hologram pattern 21.
[0021]
The hologram mark 22 can be used for the following applications.
(1) A mark for setting an image forming position on the receiving layer 5 at a predetermined position provided with the hologram pattern 21 by a thermal transfer method using a thermal transfer sheet;
(2) a mark for setting the transfer position of the adhesive layer excellent in adhesiveness to the receiving layer and the transfer target at a predetermined position of the transfer portion 12 of the intermediate transfer recording medium after the image is formed;
(3) a mark for setting a position of a transfer portion to which the transferred body is to be transferred at a predetermined position of the transferred body, or
(4) A mark used for setting a position for forming a color detection mark on the receiving layer 5 of the transfer portion 12 before the image is formed by a thermal transfer method using a thermal transfer sheet.
[0022]
The hologram mark 22 may be provided at any position, and the size and shape of the hologram mark 22 are not particularly limited. Since the method of forming the hologram mark 22 is the same as the method of forming the hologram pattern 21, these can be simultaneously formed by the same plate making, which is efficient.
[0023]
FIG. 3 is a plan view showing the vicinity of the end when the intermediate transfer recording medium according to the present embodiment is a continuous sheet.
An end mark 33 is provided near the end portion 32 of the intermediate transfer recording medium 1 </ b> C composed of the continuous sheet 31. Since the end mark 33 causes light scattering similarly to the hologram mark 22, it is detected by a detector that detects the hologram mark 22. When the end mark 33 is detected, an image is formed on the intermediate transfer recording medium 1C composed of the continuous sheet 31 or the transfer portion 12 is transferred from the intermediate transfer recording medium 1C composed of the continuous sheet 31 to the transfer target. It can be stopped.
[0024]
The size and shape of the end mark 33 are not particularly limited, but it is necessary to be provided so as to be distinguishable from the diffracted light or scattered light from the hologram mark 22. For example, the end mark 33 can be distinguished from the diffracted light or scattered light from the hologram mark 22 by making the end mark 33 longer in the longitudinal direction of the continuous sheet 31 than the hologram mark 22.
[0025]
The end mark 33 may be anything that generates scattered light. For example, the end mark 33 may be a matte treated aluminum foil or a PET (polyethylene terephthalate) film, a porous PET film, a sticker such as a seal, or mark printing. Can be provided.
[0026]
The end mark 33 is preferably formed by a hologram similarly to the hologram mark 22, and can be formed efficiently by a method such as labeling a hologram seal.
[0027]
FIG. 4 is a perspective view showing a mode of detecting a hologram mark and an end mark provided on the intermediate transfer recording medium.
The light emitted from the light emitting element 51 is irregularly reflected by the hologram marks 22A and 22B provided for the hologram patterns 21A and 21B on the intermediate transfer recording medium 1D, and emits diffracted light 53. By detecting the diffracted light 53 by the light receiving element 52, the positions of the hologram marks 22A and 22B are detected.
By setting the end mark 33 to generate scattered light similar to the hologram mark 22, setting of the position at which the image 6 is to be formed on the receiving layer 5 and setting of the position of the transfer portion 12 to be transferred onto the transfer medium are performed. Since the end of the continuous sheet is performed by the light emitting element 51 and the light receiving element 52, it is efficient.
[0028]
As the light emitting element 51, a semiconductor laser, an LED, or the like is usually used, but it is not particularly limited as long as the same function is achieved.
In addition, a photosensor or the like is usually used as the light receiving element 52, but is not particularly limited as long as the same function is achieved.
The mark detection method may be transmitted light or reflected light.
[0029]
(Embodiment of printed matter)
FIG. 5 is a cross-sectional view showing an example of the printed material of the present invention.
This printed matter 17 is obtained by transferring the transfer portion 12 from the intermediate transfer recording medium 1A whose sectional view is shown in FIG. The print 17 includes a transfer body 16 and a transfer portion 12 on the transfer body 16.
The transfer portion 12 is laminated in the order of the receiving layer 5 on which the image 6 is formed, the anchor layer 9, the transparent vapor deposition layer 8, the hologram layer 7, the ultraviolet absorption layer 15, and the protective layer 4 from the transfer target 16 side. .
The hologram layer 7 is formed with a hologram pattern 21, covers the image, enhances the decorativeness of the printed material, and effectively acts to prevent forgery and tampering.
[0030]
(First Embodiment of Method of Using Intermediate Transfer Recording Medium)
Next, a first method for forming a print using the intermediate transfer recording medium of the present embodiment will be described.
First, the above-described intermediate transfer recording medium 1A and a thermal transfer sheet provided with a color material transfer portion are prepared, pressed between a heating device such as a thermal head and a platen roll, and the heating device according to the image information. An image 6 is recorded by selectively generating heat at the heat generating portion and transferring the color material of the color material transfer portion on the thermal transfer sheet to the receiving layer 5 of the intermediate transfer recording medium 1A.
[0031]
A conventionally well-known thing can be used for a thermal transfer sheet. A color material layer is formed of a heat-meltable ink or a sublimation dye at a color material transfer portion provided on the thermal transfer sheet. The color material layer provided in the color material transfer portion is appropriately selected from heat-meltable ink and sublimation dye according to the target print product, and is provided in the surface order.
The coloring material transfer part made of a sublimation dye used to obtain a printed matter with excellent gradation is used for each sublimation dye such as yellow, magenta, cyan, black, etc. as necessary. , Provided in a surface sequential manner.
[0032]
Further, by providing an adhesive layer in the surface order with the color material transfer portion, the adhesive layer can be subsequently transferred onto the receiving layer 5 to which the color material has been transferred. As a result, the adhesive force between the transfer portion 12 and the transfer target 16 when the transfer portion 12 of the intermediate transfer recording medium 1A is transferred to the transfer target 16 can be improved, and the transfer process of the adhesive layer can be changed. This is efficient because it can be performed simultaneously with the image forming process by transferring the material.
[0033]
The position where an image is to be formed on the intermediate transfer recording medium is set by detecting a hologram mark 22 provided on the transfer portion 12. Then, the color material moves from the color material transfer portion of the thermal transfer sheet to the set position, and an image is formed.
[0034]
In the intermediate transfer recording medium of the present embodiment, hologram patterns 21A and 21B are provided in advance. As shown in FIG. 3, the images 6A and 6B are positioned at predetermined positions with respect to the hologram patterns 21A and 21B. Need to be formed. Therefore, the hologram marks 22A and 22B provided for the hologram patterns 21A and 21B are detected, and the position where an image is to be formed on the intermediate transfer recording medium is set. An image can be formed with high accuracy, and an image is not formed on the joint between the hologram patterns 22A and 22B and the transfer surfaces of the images 6A and 6B are not mistaken as in the prior art.
Note that detection marks are also usually provided on the thermal transfer sheet provided with the color material transfer portion, and each sublimation dye layer is positioned, but the image forming position on the intermediate transfer recording medium is set. This is performed by detecting the above-described hologram marks 22A and 22B.
[0035]
The intermediate transfer recording medium 1 </ b> A further detects the hologram marks 22 </ b> A and 22 </ b> B after an image is formed at a predetermined position on the receiving layer 5, thereby detecting the transfer portion 12 to be transferred to the transfer body 16. The position is set. Then, the transfer portion 12 at the set position is transferred onto the transfer body 16 to form a printed matter 17.
[0036]
For example, when the transfer target 16 is an ID card 81 as shown in FIG. 6, the transfer portion 12 to be transferred to a predetermined position on the front surface 81A and the back surface 81B of the ID card 81 is accurately transferred. By detecting the hologram marks 22A and 22B provided on the intermediate transfer recording medium, the position of the transfer portion 12 to be transferred is accurately set.
[0037]
In the obtained prints 17A and 17B, the transfer portion 12 to be transferred from the intermediate transfer recording medium is transferred to predetermined positions on the surfaces 81A and 81B to be transferred. For this reason, since the positional relationship between the image formed in advance on the ID card 81 and the image provided on the transfer target by transferring the transfer unit 12 becomes accurate, It is particularly preferable for the production of a printed material 17 of a transfer object that requires high reliability and safety.
[0038]
(Second Embodiment of Method for Using Intermediate Transfer Recording Medium)
Next, a second method for forming a print using the above-described intermediate transfer recording medium will be described.
Similar to the first printed matter forming method described above, an intermediate transfer recording medium 1A and a thermal transfer sheet provided with a color material transfer portion are prepared and pressed between a heating device such as a thermal head and a platen roll. The heat generation part of the heating device is selectively heated according to the image information, and first, the color material of the color detection mark color material layer on the thermal transfer sheet is transferred to the receiving layer 5 of the intermediate transfer recording medium 1A. By doing so, the color detection mark is recorded prior to the formation of the images 6A and 6B.
[0039]
FIG. 7A is a front view showing an embodiment of an intermediate transfer recording medium provided with a color detection mark. FIG. 7B is a front view showing an embodiment of a thermal transfer sheet used in the second printed material forming method.
[0040]
The color detection marks 62A and 62B shown in FIG. 7A are positions where the color detection marks 622A and 62B are formed on the receiving layer 5 by detecting the hologram marks 22A and 22B formed for the hologram patterns 21A and 21B. Then, the color material is transferred from the color detection mark color material layers 78A and 78B of the thermal transfer sheet 71 to the set position.
[0041]
In the thermal transfer sheet 71 shown in FIG. 7 (B), each sublimation dye such as yellow 72, magenta 73, cyan 74, black 75, etc. is appropriately subjected to surface sequential as necessary, as in the first printed matter forming method described above. And a color material transfer portion 76 provided in the above. In addition, you may provide the contact bonding layer (not shown) provided in the surface sequential as needed. The first printed material forming method described above is different in that color material layers 78A and 78B for color detection marks are provided in the color material transfer portions 76A and 76B.
[0042]
The color material constituting the color detection mark color material layer 78 may be a sublimable dye or a hot-melt ink. The color detection mark formed with heat-meltable ink can be detected with high accuracy by a transmission sensor that is inexpensive and easy to adjust, and also forms images, especially the formation and transfer of multi-colored images. This is preferable because it can be accurately transferred to the set position. Particularly preferred is a hot-melt black ink.
[0043]
Next, by detecting the color detection marks 62A and 62B formed on the intermediate transfer recording medium 1E, the positions where the images 6A and 6B are to be formed on the intermediate transfer recording medium 1E are set. Then, the color materials are transferred from the color material transfer portions 76A and 76B of the thermal transfer sheet 71 to the set positions to form images 6A and 6B.
[0044]
In the intermediate transfer recording medium of the present embodiment, hologram patterns 21A and 21B are provided in advance, and images 6A and 6B need to be formed at predetermined positions with respect to the hologram patterns 21A and 21B. . For this reason, the hologram marks 22A and 22B provided with a fixed relative position for each of the hologram patterns 21A and 21B are detected, and coloring detection marks 62A and 62B serving as a reference for setting the image forming position are formed in advance. deep. Then, by detecting the coloring detection marks 62A and 62B, the positions at which the images 6A and 6B are to be formed on the receiving layer 5 are set. Therefore, the images 6A and 6B are set at predetermined positions on the intermediate transfer recording medium 1E. Can be formed with high accuracy. As in the prior art, the images 6A and 6B are not formed on the joints of the hologram pattern 21, and the transfer surface is not mistaken.
Note that the thermal transfer sheet provided with the color material transfer portion is also usually provided with a detection mark, and each sublimation dye layer is positioned, but the image formation position of the intermediate transfer recording medium is set. This is performed by detecting the above-described coloring detection mark 62.
[0045]
After the images 6A and 6B are formed at predetermined positions on the intermediate transfer recording medium 1E, the color detection marks 62A and 62B are further detected, whereby the position of the transfer portion 12 to be transferred to the transfer body 16 is determined. Is set. Then, the transfer portion 12 at the set position is transferred onto the transfer body 16 to form a printed matter 17.
[0046]
For example, when the transfer target 16 is an ID card 81, the color detection provided on the intermediate transfer recording medium 1E is used to accurately transfer the transfer portion 12 to be transferred to a predetermined position on the ID card 81. By detecting the marks 62A and 62B, the position of the transfer portion 12 to be transferred is accurately set.
[0047]
FIG. 6 is a plan view showing the ID card according to the present embodiment. The ID card 81 can be manufactured by any one of the above-described first printed material forming method and second printed material forming method. Since the ID card 81 can be obtained by transferring the transfer portion 12 from the above-described intermediate transfer recording medium, each layer constituting the transfer portion 12 can be appropriately selected and provided as necessary.
[0048]
By the first and second printed material forming methods described above, the images 6A and 6B having high image quality and high gradation can be accurately transferred to a predetermined position of the intermediate transfer recording medium on which the hologram pattern 21 is provided. In addition, since the transfer portion 12 to be transferred can be accurately transferred to a predetermined position on the ID card 81 that is a transfer target, color misregistration and position are provided on the front and back surfaces of the obtained ID card 81. Images 6A and 6B having no deviation are formed.
In particular, on the front and back surfaces of the ID card 81, identification items such as a face photograph, name, nationality, and signature, micro characters for preventing counterfeiting and tampering, a colored pattern, a fluorescent latent image, and the like are provided. Therefore, it is extremely effective in the case where accurate matching with a formed image such as a face photograph recorded on the intermediate transfer recording medium is required in the positional relationship with the description items provided on the ID card 81.
[0049]
(Layer structure)
Next, each layer constituting the intermediate transfer recording medium and the printed material according to the present embodiment will be described.
As the base film 2, the same base film as that used for the conventional intermediate transfer recording medium can be used as it is, and it is not particularly limited. Specific examples of the preferable base film 2 include thin paper such as glassine paper, condenser paper or paraffin paper, or heat resistance such as polyethylene terephthalate, polyethylene naphthalate, polybutylene terephthalate, polyphenylene sulfide, polyether ketone or polyether sulfone. Examples thereof include stretched or unstretched films of plastics such as polyester, polypropylene, polycarbonate, cellulose acetate, polyethylene derivatives, polyvinyl chloride, polyvinylidene chloride, polystyrene, polyamide, polyimide, polymethylpentene, and ionomer. Moreover, the composite film which laminated | stacked 2 or more types of these materials can also be used. The thickness of the base film 2 can be appropriately selected depending on the material so that the strength, heat resistance and the like are appropriate, but usually a thickness of about 1 to 100 μm is preferably used. In consideration of thermal efficiency, tensile strength, processability, etc. during thermal transfer, 5 to 50 μm is more preferable.
[0050]
If necessary, a back layer can be provided on the surface opposite to the transfer portion 12 side of the base film 2 by a conventionally known method. The back layer is used to prevent the base film 2 from being fused with a heating device such as a thermal head and improve slidability when the transfer portion 12 is transferred to the transfer medium using an intermediate transfer recording medium. It can be provided by a resin similar to a conventionally used resin.
[0051]
The receiving layer 5 is provided as a part of the transfer portion 12 constituting the intermediate transfer recording medium so as to be positioned on the outermost surface opposite to the base film 2 side. An image 6 is formed on the receiving layer 5 by thermal transfer from a thermal transfer sheet having a color material layer by thermal transfer. Then, the transfer portions 12 of the intermediate transfer recording media 1A and 1B on which the image 6 is formed are transferred to the transfer medium 16, and as a result, a printed matter 17 is formed.
[0052]
For this reason, as a material for forming the receiving layer 5, a conventionally known resin material that can easily receive a heat transferable color material such as a sublimation dye or a heat-meltable ink can be used. For example, polyolefin resin such as polypropylene, halogenated resin such as polyvinyl chloride or polyvinylidene chloride, polyvinyl acetate, vinyl chloride-vinyl acetate copolymer, ethylene-vinyl acetate copolymer or polyacrylate Vinyl resins, polyester resins such as polyethylene terephthalate or polybutylene terephthalate, polystyrene resins, polyamide resins, copolymers of olefins such as ethylene or propylene and other vinyl polymers, cellulose resins such as ionomers or cellulose diastases Polycarbonate, etc., and vinyl chloride resin, acrylic-styrene resin or polyester resin is particularly preferable.
[0053]
When the receiving layer 5 is transferred to the transfer medium via the adhesive layer, the adhesiveness of the receiving layer 5 itself is not necessarily required. However, when the receptor layer 5 is transferred to the transfer medium without passing through the adhesive layer, the receptor layer 5 may be formed using an adhesive resin material such as vinyl chloride-vinyl acetate copolymer. preferable.
[0054]
The receptive layer 5 is a receptive layer coating obtained by adding one or more materials selected from the above-mentioned materials and various additives as necessary, and dissolving or dispersing them in an appropriate solvent such as water or an organic solvent. A working solution is prepared, and a protective layer 4 or the like is provided on the base film 2 or on the base film 2 by means of a gravure printing method, a screen printing method or a reverse coating method using a gravure plate. If formed, it can be formed by coating and drying on it. The thickness is about 1 to 10 μm, preferably about 1 to 5 μm in a dry state.
[0055]
The protective layer 4 is provided as a part of the transfer portion 12 as needed, covers the receiving layer 5 after being transferred to the transfer target, and maintains the quality of the image 6. As a material for forming the protective layer 4, a conventionally known protective layer material can be used, and it is preferable to select a resin composition having desired physical properties, for example, fingerprint resistance, as the surface protective layer. In addition, when friction resistance, chemical resistance, and contamination resistance are particularly required, an ionizing radiation curable resin can be used as the protective layer resin. In addition, a protective layer material appropriately added with a lubricant for improving the scratch resistance of an image formed product, a surfactant for preventing contamination, an ultraviolet absorber for improving weather resistance, an antioxidant and the like is used. Thus, the protective layer 4 can also be formed.
[0056]
The protective layer 4 can be formed by the same method as the peeling layer 3, and the thickness is preferably 0.1 to 10 μm.
[0057]
The hologram layer 7 is provided as a part of the transfer unit 12 as necessary, and after being transferred to the transfer target, the hologram layer 7 covers the receiving layer 5 to obtain a print with the hologram pattern 21. The printed matter provided with the hologram pattern 21 has a decorative effect and is preferably used when security such as a credit card or a passport is required because forgery by copying is difficult.
The hologram forming layer 7 is made of a thermoplastic resin such as polyvinyl chloride, acrylic resin, polystyrene or polycarbonate, or a thermosetting resin such as unsaturated polyester, melanin, epoxy or acrylate, either alone or in combination with the above thermoplastic resin. Further, thermoformable substances having radically polymerizable unsaturated groups, or those made radically unsaturated by adding a radically polymerizable unsaturated simple substance to these, can be used. The film thickness of the hologram layer 13 is preferably in the range of 0.1 to 6 μm.
[0058]
The transparent vapor deposition layer 8 is usually provided on the receiving layer 5 side in contact with the hologram layer 7. Since this transparent vapor deposition layer 8 has a refractive index different from that of the other layers, it has a function of raising the hologram pattern in the formed printed matter. The material for forming the transparent vapor deposition layer 8 can be a conventionally known material, for example, metal oxides such as ZnS, TiO2, SiO2, Cr2 O3, sulfides, etc., and is not particularly limited. Moreover, the formation method can also be formed by a conventional method such as a vacuum deposition method or a sputtering method. The film thickness is preferably 100 to 600 mm.
[0059]
For example, in FIG. 1, the anchor layer 9 is provided for bonding the hologram layer 7 having the transparent vapor deposition layer 8 on the surface thereof and the receiving layer 5. As a material for forming the anchor layer 9, a conventionally known material can be used and is not particularly limited. Moreover, the formation method can also be formed by a method similar to the conventional method.
[0060]
The ultraviolet absorbing layer can be provided at an appropriate position between the receiving layer 5 and the base film 2 as a part of the transfer portion 12 as necessary. The ultraviolet absorbing layer covers the transferred receiving layer 5 and prevents deterioration of the image 6 of the printed matter from ultraviolet rays in natural light. As the material for forming the ultraviolet absorbing layer, conventionally known materials can be used and are not particularly limited. Moreover, the formation method can also be formed by a method similar to the conventional method.
[0061]
The release layer 3 is usually formed from an acrylic skeleton resin, a vinyl chloride-vinyl acetate copolymer, a mixture of cellulose acetate and a thermosetting acrylic resin, a melamine resin, a nitrocellulose resin, and polyethylene wax. It is preferable to use a resin as a main component. Moreover, in order to adjust the adhesive force of the peeling layer 3 and the base film 2, a polyester resin etc. are used preferably.
[0062]
For the release layer 3, for example, an acrylic skeleton resin and a polyester resin are dissolved or dispersed in an appropriate solvent to prepare a release layer coating solution, and this is applied to the substrate film 2 by a gravure printing method, a screen printing method or a gravure. It can be formed by applying and drying by means of a reverse coating method using a plate. The thickness after the drying is usually 0.1 to 10 μm, preferably 0.5 to 3 μm.
[0063]
Moreover, even if it is the transfer part 12 which does not have the peeling layer 3, it can give appropriate contact | adhesion power between the protective layer 4 and the base film 2 by giving the protective layer 4 peelability. . Moreover, even if it is the transfer part 12 which does not have the protective layer 4, it can also have the effect | action similar to the above-mentioned peeling layer by giving peelability to the layer facing the base film 2. FIG.
[0064]
A release layer (not shown) can be provided on the base film 2 instead of the release layer 3 described above, and is usually formed from a binder resin and a release material. As the binder resin, acrylic resins such as polymethyl methacrylate, polyethyl methacrylate, and polybutyl acrylate which are thermoplastic resins, polyvinyl acetate, vinyl chloride-vinyl acetate copolymer, polyvinyl alcohol, polyvinyl butyral, etc. Vinyl resins, cellulose derivatives such as ethyl cellulose, nitrocellulose, and cellulose acetate, unsaturated polyester resins that are thermosetting resins, polyester resins, polyurethane resins, aminoalkyd resins, and the like can be used. As the releasable material, waxes, silicone waxes, silicone resins, melamine resins, fluorine resins, fine powders of talc and silica, lubricants such as surfactants and metal soaps, and the like can be used.
[0065]
The release layer was prepared by dissolving or dispersing the resin in an appropriate solvent to prepare a release layer coating solution, and using the gravure printing method, screen printing method, or gravure plate on the substrate film 2. It can be formed by applying and drying by means such as reverse coating. The thickness after the drying is usually 0.1 to 10 μm.
[0066]
Next, the transfer target 16 will be described. The transfer portion 12 of the above-described intermediate transfer recording medium is transferred onto the transfer target 16, and as a result, a printed matter 17 is obtained. The transfer material 16 to which the intermediate transfer recording medium of the present invention is applied is not particularly limited, and for example, natural fiber paper, coated paper, tracing paper, plastic film that does not deform by heat during transfer, glass, metal, ceramics, Any material such as wood or cloth may be used.
[0067]
Regarding the shape and use of the transfer object 16, stock certificates, securities, certificates, passbooks, boarding tickets, car horse tickets, stamps, stamps, appreciation tickets, admission tickets, tickets, cash cards, cash cards, credit cards, prepaid cards, Cards such as members cards, greeting cards, postcards, business cards, driver's licenses, IC cards, optical cards, cases such as cartons, containers, bags, forms, envelopes, tags, OHP sheets, slide films, bookmarks, Calendars, posters, brochures, menus, passports, POP supplies, coasters, displays, nameplates, keyboards, cosmetics, wristwatches, lighters and other accessories, stationery, report paper and other stationery, building materials, panels, emblems, keys, cloth, clothing , Footwear, radio, TV, calculator, OA equipment, etc. This book, album also, the output of computer graphics, medical image output, etc., do not ask type.
[0068]
Especially when transferring full-color facial photographs and other required items to ID cards and passports that require high-resolution and high-quality images, micro characters, chromatic patterns, fluorescent latent images, etc. were provided. When an intermediate transfer recording medium having the transfer section 12 is used, it is possible to prevent forgery and tampering, and it is preferably used for producing a printed matter that requires high reliability and safety.
For example, as illustrated in FIG. 11, the patterns A and B described in the above-described embodiment include, on the surface (the pattern A), a hologram with a logo or an attractive design for the purpose of improving the design of the card. For the back side (Picture B), a background pattern or the like may be included in a hologram for the purpose of preventing forgery or falsification of print information.
It should be noted that the present invention is not limited to the embodiment described above, and various modifications and changes are possible, and these are also within the equivalent scope of the present invention.
For example, although two types of hologram marks have been described, three or more types may be provided. Moreover, not only a hologram mark but a diffraction grating and a random pattern may be sufficient.
Furthermore, it can be used not only for preventing forgery of ID cards and passports, but also for improving the design of amusement cards and the like.
[0069]
【Example】
The intermediate transfer recording medium of the present invention will be specifically described below.
(Example 1)
First, a transparent polyethylene terephthalate having a thickness of 12 μm is used as the base film 2, and a coating solution for a release layer shown below is applied to the surface and dried, and then a thickness of 1.5 μm is formed on the base film 2. A release layer 3 was formed.
[0070]
Release layer coating solution;
40 parts by weight of acrylic resin
2 parts by weight of polyester resin
50 parts by weight of methyl ethyl ketone
50 parts by weight of toluene
[0071]
Subsequently, the following hologram layer coating solution was applied onto the release layer 3 and dried to form a hologram layer 7 having a thickness of 2.0 μm. The hologram pattern 21 was formed on the hologram layer 7 by using an original plate provided with a concavo-convex pattern of hologram interference fringes and forming fine concavo-convex portions by embossing.
As shown in FIG. 3, after the transfer, the patterns 6A and 6B corresponding to the front and back surfaces are alternately imposed in the flow direction, and the hologram marks 22A and 22B for position detection are respectively long as shown in FIG. Those with a = 10 mm and b = 20 mm were provided.
Further, the hologram marks 22A and 22B were formed simultaneously with the formation of the hologram patterns 21A, 2A and 22BB by an original plate to be embossed.
[0072]
Hologram layer coating solution;
40 parts by weight of acrylic resin
10 parts by weight of melamine resin
50 parts by weight of cyclohexane
50 parts by weight of methyl ethyl ketone
[0073]
Further, on the hologram layer 7 on which the hologram mark 22 and the hologram pattern 21 are formed, a titanium oxide having a thickness of 500 mm is formed as a transparent vapor deposition layer 8 by a vacuum vapor deposition method. The intermediate transfer recording medium of Example 1 in which the receiving layer 5 having a thickness of 2.0 μm was formed by applying and drying the receiving layer coating solution shown in FIG.
[0074]
Receiving layer coating solution;
40 parts by weight of vinyl chloride-vinyl acetate copolymer
1.5 parts by weight of acrylic silicone
50 parts by weight of methyl ethyl ketone
50 parts by weight of toluene
[0075]
The obtained intermediate transfer recording medium was slit to a predetermined width and then rolled to prepare an intermediate transfer medium hologram ribbon. Two types of images 6A and 6B corresponding to the front and back of the ID card 81 are obtained by a thermal transfer method using a thermal transfer sheet in which each color material layer of yellow, magenta, and cyan is provided in the surface order on the receiving layer 5 by a dedicated printer. Formed.
The image formation positions were set by detecting the positions of the hologram marks 22A and 22B with the semiconductor laser 51 and the photosensor 52.
[0076]
The intermediate transfer recording medium 1C formed with an image on the receiving layer 5 was retransferred onto the ID card 81 by a heat roller unit, and an ID card 81 having the patterns 6A and 6B formed on the front and back sides was obtained.
The intermediate transfer recording medium (hologram ribbon) wound around the roll was temporarily removed from the transfer machine, loaded again at an arbitrary position, and then the transfer was resumed. did.
[0077]
(Example 2)
Using the small-rolled intermediate transfer recording medium (hologram ribbon) obtained in Example 1, the color for the color detection mark is formed on the receiving layer 5 of the intermediate transfer recording medium together with the color material layers of yellow, magenta, and cyan. First, the color detection marks 62A and 62B were transferred and formed by a thermal transfer method using a thermal transfer sheet provided with the material layer 78 in the surface order.
The coloring material layer for the color detection mark is a heat-meltable black ink layer, and the color detection marks 62A and 62B are formed at the hologram marks 22A and 22B provided on the hologram layer of the intermediate transfer recording medium 1E according to the first embodiment. Detected and set in the same way as. Subsequently, yellow, magenta, and cyan color materials were transferred to form images 6A and 6B on the receiving layer 5 of the intermediate transfer recording medium 1E. The image formation position was set by detecting the color detection marks 62A and 62B provided on the receiving layer 5 with a transmission type sensor.
[0078]
Examples 1 and 2 were both preferable results. In particular, in the case of a hologram mark, the formation was easy and the image formation position accuracy was excellent. Further, in the case of the color detection mark, since a transmission type sensor can be used, it is easy to read.
[0079]
(Comparative Example 1)
FIG. 8 is a diagram illustrating Comparative Example 1 of the intermediate transfer recording medium.
When the patterns 106A and 106B and the position detection mark (hologram mark) 122 were embossed and duplicated, the size of the hologram mark 122 was made to the same length of 10 mm regardless of the patterns 106A and 106B.
A card that was transferred to the front and back sides of the completed intermediate transfer recording medium (hologram ribbon) 100 rolled in a roll shape was produced in the same manner as in Example 1, but the front and back sides were copied in reverse depending on the roll loading position. The issue workability was extremely bad.
[0080]
(Comparative Example 2)
FIG. 9 is a view showing Comparative Example 2 of the intermediate transfer recording medium.
When the hologram pattern 221 was formed, an intermediate transfer recording medium 200 in which no hologram mark was formed was produced.
On the receiving layer of the obtained intermediate transfer recording medium 200, detection marks 222A and 222B were formed by printing. The detection marks 222A and 222B are provided with a length of 10 mm and 20 mm, respectively, with respect to the patterns 206A and 206B. The positions of the detection marks 222A and 222B were set by mechanical feed so as to be the same as the pattern pitch of the hologram pattern 221.
[0081]
Subsequently, an image was formed by a thermal transfer method using a thermal transfer sheet in which each color material layer of yellow, magenta, and cyan was provided in the surface order on the receiving layer of the intermediate transfer recording medium. The image forming position was set by detecting a detection mark provided by printing with a transmission sensor.
The completed card had a pattern transferred on the front and back, but the joint of the hologram pattern was transferred, resulting in a misaligned printed material.
[0082]
Moreover, since the detection mark by printing must be printed in a separate process, it is complicated to form. As a result, the detection mark could not be provided with high accuracy and the image formation position accuracy was poor.
[0083]
【The invention's effect】
As described above, since a plurality of different position detection marks are provided depending on the intermediate transfer recording medium, it is possible to distinguish the transfer position on the front and back surfaces when transferring to multiple locations such as the front and back surfaces of a card or the like. It became.
In addition, even when an intermediate transfer recording medium wound in a roll shape is used from the middle, the transfer position on the front and back surfaces can be detected, so that there is no error in the transfer order.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an embodiment of an intermediate transfer recording medium according to the present invention.
FIG. 2 is a plan view showing an intermediate transfer recording medium according to the present embodiment.
FIG. 3 is a plan view showing an example of an aspect in the vicinity of an end portion when the intermediate transfer recording medium according to the present embodiment is a continuous sheet.
FIG. 4 is a perspective view showing a mode of detecting a hologram mark and an end mark provided on the intermediate transfer recording medium according to the present embodiment.
FIG. 5 is a cross-sectional view showing a printed material according to the present embodiment.
FIG. 6 is a plan view showing an ID card according to the present embodiment.
7A is a front view showing an embodiment of an intermediate transfer recording medium provided with a color detection mark, and FIG. 7B is a thermal transfer sheet used in the second printed material forming method. It is a front view showing an embodiment.
FIG. 8 is a diagram showing a comparative example 1 of an intermediate transfer recording medium.
FIG. 9 is a diagram showing a comparative example 2 of an intermediate transfer recording medium.
FIG. 10 is a cross-sectional view schematically showing an example of a conventional intermediate transfer recording medium.
FIG. 11 is a diagram showing an example of hologram patterns (pictures A and B) which are different images according to the present embodiment.
[Explanation of symbols]
21A, 21B Hologram pattern
22A, 22B Hologram mark (position detection mark)
6A, 6B images

Claims (2)

A base film;
Releasably provided on the base film, and a receptive layer in which a plurality of images are formed with different shapes, and the hologram layer in which a plurality of hologram patterns are provided corresponding to each of a plurality of different images of the shapes formed Including a transferred portion,
In an intermediate transfer recording medium for transferring an image to a transfer medium after forming an image on the receiving layer of the transfer portion,
Provided in the transfer section, having a different shape corresponding to each of the plurality of images having different shapes, formed with a relative position corresponding to each of the plurality of images having different shapes, and for each of the plurality of images having different shapes Comprising a plurality of hologram marks formed with the same hologram as that hologram pattern in each corresponding hologram pattern step;
An intermediate transfer recording medium characterized by the above. The intermediate transfer recording medium according to claim 1,
The transfer object is a card,
The plurality of images having different shapes are alternately arranged in the receiving layer, and are images having different shapes for the front surface and the back surface of the card,
The plurality of hologram patterns are two types of patterns corresponding to the front side and the back side of the card,
The plurality of hologram marks are marks having different shapes corresponding to the front surface and the back surface of the card,
An intermediate transfer recording medium characterized by the above.

Images