JP5564777B2 - Security film, transfer foil and printed matter - Google Patents

Description

  The present invention relates to a surface relief hologram that can be used as a banknote, gift certificate, or certificate. More specifically, the present invention has at least two relief layers, and has a unique design and security. The present invention relates to a film and a transfer foil.

  Holograms have excellent anti-counterfeiting functions due to the difficulty of copying, and are widely used for various security applications. Holograms used for security applications include hologram seals, hologram transfer foils, and threaded holograms used for various paper media.

In addition, conventional holograms generally appear silvery by using a metal thin film such as aluminum as a reflective layer. However, by providing a layer colored with a pigment or dye, a golden or other metallic color is provided. Can be created (see Patent Document 1). Furthermore, it is possible to express two or more colors by patterning the colored layer.
Japanese Patent Laid-Open No. 61-238079

  However, even if the colored layer is patterned, it is necessary to separately process the hologram design on this pattern, so it is difficult to accurately align the position of the hologram design and the colored pattern, which is a great design limitation. .

  The present invention has been made in order to solve the above-described problems, and has a unique design and security because a hologram in which the registration of a hologram pattern and a coloring pattern completely coincide can be freely arranged. It aims at providing a security film, transfer foil, and printed matter.

According to the first aspect of the present invention, there is provided a first hologram forming layer containing at least an ultraviolet curable resin selected from polyacrylate or polyurethane on one side of a support, a first reflective layer made of aluminum , a mask layer, An anchor layer, a second hologram forming layer, a second reflective layer made of zinc sulfide or titanium dioxide , and a second anchor layer are sequentially laminated, and the first reflective layer is partially present. It is a film. According to the present invention, first, the first reflective layer for visually recognizing the first hologram layer is partially provided, and the portion without the first reflective layer is made visible through the second reflective layer. Thus, it is possible to create a hologram having a pattern of two or more colors and different designs.
At this time, since the registration of the hologram design and the coloring pattern can be made to coincide completely, it is possible to have unique design and security.

  The invention according to claim 2 is the security film according to claim 1, wherein the second hologram forming layer has a hologram design different from that of the first hologram forming layer. The security film according to the present invention has at least two kinds of hologram designs.

  The invention according to claim 3 is the security film according to claim 1 or 2, wherein the second hologram forming layer is colored with a pigment or a dye. The security film according to the present invention is such that the coloring of the second pattern is realized by adding a coloring agent to the second forming layer itself.

  The invention according to claim 4 is characterized in that a colored layer (1) is provided between the first reflective layer and the second hologram forming layer. It is a security film. The security film according to the present invention is such that the coloring of the second pattern is realized by the colored layer (1) provided between the first reflective layer and the second hologram forming layer. The colored layer (1) may be the entire surface or a partial layer.

  The invention according to claim 5 is the security film according to any one of claims 1 to 4, wherein the first hologram forming layer is colored with a pigment or a dye. The security film according to the present invention is such that coloring of the first pattern is realized by adding a coloring agent to the first hologram forming layer itself. At this time, the coloring effect also affects the second pattern.

  The invention according to claim 6 is characterized in that a colored layer (2) is provided between the support and the first hologram forming layer. It is a film. The security film according to the present invention is such that the coloring of the first pattern is realized by the colored layer (2) provided between the support and the first hologram forming layer. The colored layer (2) may be the entire surface or a partial layer, but the coloring effect also affects the second pattern.

  The invention according to claim 7 is the security film according to any one of claims 1 to 6, wherein the first reflective layer and the second reflective layer are a combination of materials having different colors. It is. The security film according to the present invention realizes the difference in color between the first pattern and the second pattern by using different colors for the first reflective layer and the second reflective layer.

According to an eighth aspect of the present invention , a release layer is provided between the support of the security film according to any one of the first to seventh aspects and the first hologram forming layer, and on the second anchor layer The transfer foil is provided with an adhesive layer. The transfer foil according to the present invention is obtained by forming the security film according to any one of claims 1 to 7 into a transfer foil that can be transferred to another medium such as paper or a card.

  The invention according to claim 9 is that at least a part of the hologram pattern is provided using the security film according to any one of claims 1 to 7 and / or the transfer foil according to claim 8. It is a printed matter that is characterized.

  According to invention of Claim 1, the security film with which the 1st pattern and 2nd pattern which were patterned is combined is provided. Since patterning can be created regardless of the design of the hologram, it is possible to have unique design and security compared to the case where a similar pattern is expressed by the hologram itself.

  According to the second aspect of the present invention, security having more specific design and security by patterning two kinds of hologram designs by making the first and second designs different from each other. A film is provided.

  According to invention of Claim 3, the security film which has a different color by a 1st design and a 2nd design is provided by coloring a 2nd hologram formation layer.

  According to the invention described in claim 4, by providing the colored layer (1) between the first reflective layer and the second hologram forming layer, a security film having different colors for the first design and the second design is provided. Is done. Furthermore, the security film which has a part from which a color differs also in a 2nd design by providing a colored layer (1) partially is provided.

  According to invention of Claim 5, the security film by which both the 1st design and the 2nd design were colored in the same color by coloring a 1st hologram formation layer is provided.

  According to the invention described in claim 6, by providing the colored layer (2) between the support and the first hologram forming layer, both the first pattern and the second pattern are colored in the same color. Is provided. Furthermore, by providing the colored layer (2) partially, a security film having portions with different colors is provided regardless of the patterns of the first design and the second design.

  According to the invention described in claim 7, by using a combination of materials having different colors as the first reflective layer and the second reflective layer, a security film having different colors in the first design and the second design is provided. The

According to the invention described in claim 8, a release layer between the support and the first hologram forming layer provided, and, in the adhesive layer be provided on the second reflective layer, the effect of the preceding claims A transfer foil is provided.

  According to the ninth aspect of the invention, a unique design and security can be obtained by attaching a security film having the effects of the first to seventh aspects and / or transferring the transfer foil prepared by the eighth aspect of the invention. A printed product is provided.

  Examples of the application of the present invention include, but are not limited to, banknotes, securities, tickets, tickets, gift certificates, certificates, labels, cards, and threads.

The security film and transfer foil of the present invention are formed on a support, and are formed of a first hologram forming layer made of a resin material, a first reflective layer partially formed on the first hologram forming layer, and the first A second hologram forming layer made of a resin material and formed on the first hologram forming layer and the first reflecting layer, and a second reflecting layer formed on the second hologram forming layer; Accordingly, other configurations may be provided. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a sectional view of a security film showing one embodiment of the present invention.
FIG. 2 is a plan view of a security film showing one embodiment of the present invention.
FIG. 3 is a cross-sectional view of a security film showing one embodiment of the present invention.
FIG. 4 is a cross-sectional view of a security film showing one embodiment of the present invention.
FIG. 5 is a plan view of a security film showing one embodiment of the present invention.
FIG. 6 is a cross-sectional view of a transfer foil showing one embodiment of the present invention.

1. First, the support used in the present invention will be described. The support used in the present invention has a protective function for preventing the optical image obtained by the hologram forming layer from being disturbed by external factors when used as a security film. Further, when used as a transfer foil, it has a function of being peeled off from a transfer material having a hologram forming layer after being attached to the transfer material by a method such as hot stamping. Examples of suitable materials for the support of the present invention include polyethylene terephthalate (polyester), polyvinyl chloride, polyolefin, or cellulose acetate film.

  Further, when the security film of the present invention is produced, when the resin film is formed by applying a composition such as a colored layer containing a solvent, a hologram forming layer, and an anchor layer on the support, the resin material is It is preferable to have solvent resistance to such an extent that it is not eroded by the solvent.

  In the present invention, it is preferable to use a polyester-based resin among the resin materials, and it is preferable to use polyethylene terephthalate among the polyester-based resins.

  The support used in the present invention does not have to be transparent, it may be transparent so long as the hologram forming layer can be visually recognized, and may be colored.

  The support used in the present invention may have any thickness, but is preferably in the range of 12 μm to 200 μm.

2. Colored layer The colored layer (2) is formed between the support and the first hologram forming layer, and the colored layer (1) is formed between the first reflective layer and the second hologram forming layer. As a forming method, a general printing method such as gravure printing, flexographic printing, screen printing, offset printing or the like can be used, and a coloring effect can be obtained by blending a dye or a pigment in the colored layer.

  The colored layer may be full-surface printing or partial pattern printing. When the colored layer is printed on the entire surface, the coloring effect covers the entire surface of the security film and / or the transfer foil. However, when the colored layer (1) is printed on the entire surface, the colored effect is limited to a portion where the first reflective layer is not provided. Therefore, it becomes a pattern. At this time, since the colored range of the colored layer (1) and the range of the hologram pattern of the second hologram forming layer to be processed later completely coincide, unique design and security can be realized.

  When printing a colored layer with a pattern, in the colored layer (2), a coloring effect is obtained in the printed portion. Since this pattern can be printed regardless of the pattern of the first reflective layer to be processed later, it becomes possible to create a more complicated pattern by combining it, and a higher anti-counterfeit effect can be expected. When the colored layer (1) is printed with a pattern, the coloring effect is limited to the portion where the first reflective layer is not provided and the pattern printing is performed.

  When the colored layer (1) is applied on the first hologram forming layer without the first reflecting layer, a material capable of erasing the hologram design formed on the first hologram forming layer by coating is selected. However, generally, if there is no great difference in refractive index, the hologram pattern disappears by coating.

3. Hologram-forming layer The hologram-forming layer used in the present invention is capable of recording a surface relief by hot emboss molding, and has a heat resistance to such an extent that an optical image is not lost in the production process and use environment of the present invention. If it has, it will not specifically limit. As a method for forming the hologram forming layer, a general printing method can be used in the same manner as the colored layer, and various coating methods such as gravure coating, micro gravure coating, roll coating, kiss coating, die coating, and comma coating can be used. Can do. By blending a dye or pigment in the hologram forming layer, the same coloring effect as that of the colored layer can be obtained.

  As a material for the first hologram forming layer, a resin that easily adheres to the support or the colored layer (2) is preferable, but prior to laminating the first hologram forming layer on the support or the colored layer, anchor coating treatment, Surface activation treatment such as corona discharge treatment may be performed. As for the second hologram forming layer, a resin that easily adheres to the first reflective layer, the first hologram forming layer, or the colored layer (1) is preferable. Like the first hologram forming layer, anchor coating treatment, corona discharge treatment, etc. May be performed.

  When the colored layer (1), the second hologram forming layer, or the anchor layer is applied on the first hologram forming layer without the first reflecting layer, the first reflecting layer is formed by using a material having a refractive index close to that of the first hologram forming layer. The hologram pattern formed on the first hologram forming layer at the portion where it is not provided can be eliminated. As a result, in a portion where the first reflective layer is not provided, the hologram design of the second hologram forming layer to be molded later can be visually recognized without being affected by the hologram design formed on the first hologram forming layer.

  In the present invention, at least two hologram forming layers are formed on one base material, and a security film having a plurality of patterns and a transfer foil are produced by repeating the hologram forming process. In the process of forming the hologram, it is necessary not to destroy the relief shape of the previously formed hologram forming layer.

  Since the formation to the hologram forming layer is performed using heat and pressure, generally, a hologram forming layer having a different Tg is used, and the first hologram forming layer and the second hologram forming layer are used in order of increasing Tg. There is a method to prevent the relief shape of the hologram forming layer formed earlier from being destroyed by lowering it. However, if an ultraviolet curable resin is used as the resin to be relief formed earlier, even if the Tg before curing is low, hologram forming By later curing this resin, it becomes easy to sufficiently increase Tg at the time when the hologram is later formed on the second hologram forming layer. For the first hologram forming layer, a method of curing a molding resin such as polyacrylate or polyurethane by using ultraviolet rays during molding is particularly preferable.

  The thickness of the hologram forming layer used in the present invention is not particularly limited as long as it can be molded, but is suitably from 0.3 μm to ˜3 μm.

  The relief shape formed on the hologram forming layer is a fine concavo-convex shape and is not particularly limited, but has a fine concavo-convex shape that expresses functions such as light diffusion, light scattering, light reflection, and light diffraction. included. Further, although there is no light diffraction function, a hairline pattern, mat pattern, line pattern, interference pattern, non-colored pattern, etc., that expresses a unique glitter may be used. As the light diffraction concavo-convex pattern, a hologram or diffraction grating in which interference fringes due to light interference between object light and reference light are recorded in a concavo-convex pattern can be applied.

4). Reflective layer The reflective layer is coated on the hologram-forming layer before or after molding. Examples of suitable reflective layer materials include, but are not limited to, aluminum, tin, zinc sulfide, titanium dioxide and the like. For the first reflective layer, it is necessary to conceal the second pattern composed of the colored layer (1) and the second hologram forming layer, so the material of the first reflective layer is limited to a material with low transmittance, The second reflective layer is not limited to this.

  As a method for forming the reflective layer, a method by vapor deposition and sputtering of a metal material, a method in which metal fine particles are made into ink, and printed by a general printing method such as gravure printing, flexographic printing, screen printing, and offset printing are possible. . In addition, as a method of partially providing the reflective layer, it is possible to use a mask when performing vapor deposition and sputtering, and pattern printing by a printing method. Furthermore, it is possible to partially provide the reflective layer by removing a part of the reflective layer once provided on the entire surface, such as a method using washing ink, a method of etching after the mask, laser processing. Etc.

  The first reflective layer is partially formed on the first hologram forming layer. While the hologram in the portion where the first reflective layer is formed has sufficient luminance, the hologram disappears in the portion where the first reflective layer is not formed by applying a resin having a close refractive index. In this portion, another hologram formed on the second hologram forming layer formed later is expressed.

  The reflection layer after the second reflection layer may be the whole surface or a partial layer, but the hologram in the part where the reflection layer is not provided disappears or sufficient luminance cannot be obtained. It becomes.

5. Anchor layer In the present invention, an anchor layer may be provided as necessary in order to improve adhesion between layers in addition to the minimum required layer structure. Further, adhesion between layers may be improved by surface treatment. Examples of the surface treatment include corona discharge treatment, plasma treatment, ozone gas treatment, and alkali treatment.

  As an effect of the anchor layer, by improving the adhesion between the support and the hologram forming layer, it is possible to further suppress the plate taking during molding. In addition, by making the anchor layer a cushioning and flexible material, even if heat and / or pressure is applied, it prevents deterioration of the already formed relief shape, and as a result, it is already molded. The brightness of the hologram is maintained.

6). Mask Layer In the present invention, as a method of partially providing the reflective layer, a method of performing etching after providing a mask layer on the entire surface subjected to vapor deposition or sputtering is possible. The mask layer needs to have a function of protecting the reflective layer at the time of etching. However, since the mask layer is a part of the layer structure, performances such as heat resistance and adhesion are required in addition to this function.

7). Adhesive layer When the security film of the present invention is prepared as a sticker, an adhesive layer is formed on the second reflective layer. The material for the pressure-sensitive adhesive layer is not particularly limited as long as it has a desired adhesion to the transfer object.

8). Release Layer In the transfer foil of the present invention, a release layer is formed between the support and the colored layer (2) or the first hologram forming layer. Since the release layer peels off from the support after transfer and becomes the outermost surface of the transfer product, it also requires a function as a protective layer. In order to improve the release performance, a release layer can be provided between the support and the release layer.

  Moreover, when producing the security film of this invention as a brittle sticker, a peeling layer can be provided as a brittle layer between a support body and a colored layer (2) or a 1st hologram formation layer. In this case, the sticker is used with the support attached to the object to be pasted via the adhesive layer, but when this sticker is intentionally peeled off from the object to be pasted, Peeling occurs between them, and the sticker is destroyed, so that illegal use such as reuse can be prevented.

9. Adhesive layer In the transfer foil of the present invention, an adhesive layer is formed on the second reflective layer. The material of the adhesive layer is not particularly limited as long as it has a desired adhesiveness to the transfer object. In order to further improve the adhesion between the second reflective layer and the adhesive layer, it is possible to provide an adhesive anchor layer therebetween.

  The thickness of the adhesive layer used in the present invention is not particularly limited as long as it is within a range in which desired adhesiveness can be expressed with respect to the transfer object. In the present invention, it is preferably in the range of 1 μm to 10 μm, and various coating methods can be used like the hologram forming layer.

  Hereinafter, the present invention will be specifically described with reference to examples.

Example 1
FIG. 1 is a cross-sectional view showing a configuration example of a sticker type security film according to the present invention. As illustrated in FIG. 1, the support 1, the anchor layer 2, the first hologram forming layer 3, the first reflective layer 4 partially formed on the first hologram forming layer 3, and the first A second hologram forming layer 5 formed on the entire surface of the first hologram forming layer 3 and the first reflection layer 4; a second reflection layer 6 formed on the second hologram forming layer 5; and the second reflection. The adhesive layer 7 is formed on the layer 6. In this embodiment, the anchor layer 2 is provided for improving the adhesion between the support 1 and the first hologram forming layer 3. In this embodiment, an orange dye is added to the second hologram forming layer 5.

  FIG. 2 is a plan view of this embodiment as viewed from the support side. As illustrated in FIG. 2, the first pattern portion 8 expressed by the first hologram forming layer 3 and the first reflective layer 4, and the second pattern expressed by the second hologram forming layer 5 and the second reflective layer 6. Part 9.

  Hereinafter, a specific example of the creation method of Example 1 will be shown.

  A 50 μm-thick polyethylene terephthalate film (trade name E5100, manufactured by Toyobo Co., Ltd.) was used as a support, and printing was performed on the corona-treated surface in the order of an anchor layer and a first hologram forming layer using a gravure coater. After drying in the oven, the film thickness of the first hologram forming layer was 2 μm.

  This film was hot-pressed with a roll embossing device to form a hologram design on the first hologram forming layer.

  On the 1st hologram formation layer, the pattern printing of the washing ink was performed by the screen printing system. Washing ink pattern printing was performed on the portion where the first reflective layer was not desired.

  Aluminum vapor deposition was performed on the first hologram forming layer and the washing ink to provide the first reflective layer. At this time, the first reflective layer is provided on the entire surface. The film thickness of aluminum vapor deposition was 50 nm.

  The film was washed with water to remove the washing ink and the first reflective layer on the washing ink. At this point, the portion from which the first reflective layer has been removed is transparent, but the hologram pattern formed on the first hologram forming layer can be confirmed. A silver hologram could be confirmed in the portion where the first reflective layer remained.

  On the 1st hologram formation layer from which the 1st reflection layer and the 1st reflection layer were removed, the 2nd hologram formation layer which added orange dye was printed with the gravure coater. After oven drying, the film thickness of the second hologram forming layer was 2 μm.

  This film was hot-pressed with a roll embossing device using a stamper having a pattern different from the pattern formed on the first hologram forming layer to form a hologram pattern on the second hologram forming layer.

  Aluminum vapor deposition was performed on the second hologram forming layer to provide a second reflective layer. The film thickness of aluminum vapor deposition was 50 nm. At this point, when the film is viewed from the support side, the portion where the first reflective layer is left can be confirmed as silver in the hologram pattern formed on the first hologram forming layer, and the portion where the first reflective layer is removed is the first portion. 2 The hologram pattern formed on the hologram forming layer was confirmed to be gold.

  An adhesive layer was applied on the second reflective layer and dried in an oven. The thickness of the adhesive layer after drying was 10 μm. Thus, the security film of the present invention having the structure of support / anchor layer / first hologram forming layer / first reflection layer / second hologram formation layer / second reflection layer / adhesive layer was obtained.

  In the security film of the present embodiment configured as described above, a second hologram forming layer to which an orange dye is added is provided on the removed first reflecting layer, and after forming a hologram with a different pattern, the second reflecting layer is formed. By providing the layer, the hologram image can be expressed as a first pattern portion 8 shining in silver and a second design portion 9 shining in gold. At this time, since the boundary of the pattern of the hologram design and the boundary of the colored pattern are completely coincident with each other, a fine pattern can be expressed. A film can be created.

Example 2
FIG. 3 is a sectional view showing a second configuration example of the sticker type security film of the present invention. As illustrated in FIG. 3, the support 1, the colored layer (2) 10, the first hologram forming layer 3, and the first reflective layer 4 partially formed on the first hologram forming layer 3, A colored layer (1) 11 formed on the entire surface of the first hologram forming layer 3 and the first reflective layer 4, a second hologram forming layer 5 formed on the colored layer (1) 11, It consists of a second reflective layer 6 formed on the second hologram forming layer 5 and an adhesive layer 7 formed on the second reflective layer 6. In this example, the colored layer (2) 10 is added with a yellow dye, and the colored layer (1) 11 is added with a blue dye. The colored layer (2) 10 also functions to improve the adhesion between the support 1 and the first hologram forming layer 3.

  As a specific example of the production method of Example 2, the colored layer (2) 10 is applied instead of the anchor layer 2, and the colored layer (1) 11 is applied before the second hologram forming layer is applied. A security film of this example was obtained in the same manner as in Example 1 except that it was processed. The colored layer (2) and the colored layer (1) were printed with a gravure coater.

  In the security film of Example 2, the colored layer (2) expresses yellow on the entire surface, and the colored layer (1) adds only the second pattern part 9 to the blue color so that the first color is observed when observed from the support side. The design part 8 is observed as a yellow metallic color, and the second design part 9 is observed as a green metallic color. By coloring the layer on the support side of the first reflective layer as in the present embodiment, two or more colors can be expressed. This coloring effect is not limited to the first pattern portion 8 but the second pattern. Since the pattern portion 9 is also affected, attention is required. Also in the present embodiment, the boundary of the hologram pattern pattern and the boundary of the coloring pattern completely coincide.

Example 3
FIG. 4 is a cross-sectional view showing a third configuration example of the sticker type security film of the present invention. In this example, the colored layer (2) 10 and the colored layer (1) 11 provided on the entire surface in Example 2 are partially provided, and a dye is also added to the second hologram forming layer 5. In this embodiment, the colored layer (2) 10 is added with a red dye, the colored layer (1) 11 is added with a blue dye, and the second hologram forming layer 5 is added with a yellow dye.

  FIG. 5 is a plan view of this embodiment as viewed from the support side. As illustrated in FIG. 5, the design represented by the first hologram forming layer 3 and the first reflective layer 4 includes a first design coloring portion 12 on which a colored layer (2) 10 is printed, and a colored layer (2 ) In the present embodiment, the first symbol colored portion 12 is observed as a red metallic color, and the first symbol uncolored portion 17 is not colored. Is observed as silver.

  The pattern expressed by the second hologram forming layer 5 and the second reflective layer 6 can be more complicated in color expression, the colored layer (2) is printed, and the colored layer (1) is printed second. The colored pattern B14, the colored layer (2) is printed, and the colored pattern (1) is not printed. The second patterned colored part A13, and the colored layer (2) is not printed and colored. A second design coloring portion C15 on which the layer (1) is printed, and a second design coloring portion D16 on which the coloring layer (2) is not printed and the coloring layer (1) is not printed. There are four types of color expression.

In this example,
The second pattern coloring portion A13 is expressed by an orange metallic color due to the coloring effect of the coloring layer (2) 10 and the second hologram forming layer 5,
The second pattern coloring portion B14 is expressed by a black metallic color due to the coloring effect of the colored layer (2) 10, the colored layer (1) 11, and the second hologram forming layer 5,
The second pattern coloring portion C15 is expressed by a green metallic color due to the coloring effect of the coloring layer (1) 11 and the second hologram forming layer 5,
The second pattern coloring portion D16 is expressed by a yellow metallic color due to the coloring effect of the second hologram forming layer 5.

  As a specific example of the creation method of Example 3, it was created in the same manner as Example 2 except that the colored layer (2) 10 and the colored layer (1) 11 were printed in a pattern, and the security of this example A film was obtained. By patterning the colored layer (2) 10 and the colored layer (1) 11 and coloring the second hologram forming layer, in this embodiment, six color expressions of red, silver, orange, black, green, and yellow can be expressed. It becomes possible.

  In the security film of Example 3, the colored layer (2) 10 and the colored layer (1) 11 are partially printed to express a color pattern and to give a coloring effect to the second hologram forming layer 5 Represents the difference in color between the first design part and the second design part. In the present embodiment, the boundary between the pattern of the hologram design and the pattern boundary due to the coloring effect on the second hologram forming layer 5 are completely coincident with each other, but the portions of the colored layer (2) 10 and the colored layer (1) 11 Pattern boundaries from typical printing do not match. For this reason, when printing the colored layer (2) 10 and / or the colored layer (1) 11 in accordance with the pattern of the hologram design, it is necessary to design in consideration of the printing accuracy, which is subject to design restrictions. . On the contrary, the pattern of the colored layer (2) 10 and / or the colored layer (1) 11 can express unique design by printing randomly regardless of the pattern of the hologram design. .

Example 4
FIG. 6 is a cross-sectional view showing a configuration example of the transfer foil of the present invention. As illustrated in FIG. 6, the support 1, the release layer 18, the first hologram forming layer 3, the first reflective layer 4 partially formed on the first hologram forming layer 3, and the first A mask layer 19 formed on one reflective layer, an anchor layer 20 formed on the entire surface of the first hologram forming layer 3 and the mask layer 19, and a second hologram formed on the anchor layer 20 A layer 5, a second reflective layer 6 formed on the second hologram forming layer 5, an anchor layer 21 formed on the second reflective layer 6, and an adhesive layer formed on the anchor layer 21 22. In this embodiment, the anchor layer 20 is provided to improve the adhesion between the first hologram forming layer 3 and the mask layer 19 and the second hologram forming layer 5, and the anchor layer 21 is a second reflective layer. 6 and the adhesive layer 22 for improving the adhesion. In this embodiment, an orange dye is added to the second hologram forming layer 5.

  Hereinafter, a specific example of the creation method of Example 4 will be shown.

  Using a polyethylene terephthalate film (trade name E5102, manufactured by Toyobo Co., Ltd.) having a thickness of 16 μm as a support, printing was performed with a gravure coater in the order of a release layer and a first hologram forming layer on the surface subjected to corona treatment. After drying in the oven, the film thickness of the first hologram forming layer was 2 μm.

  This film was hot-pressed with a roll embossing device to form a hologram design on the first hologram forming layer.

  Aluminum vapor deposition was performed on the first hologram forming layer to provide a first reflective layer. At this time, the first reflective layer is provided on the entire surface. The film thickness of aluminum vapor deposition was 50 nm.

  A mask layer pattern was printed on the first reflective layer by a gravure printing method. Pattern printing of the mask layer was performed on the portion where the first reflective layer was to be provided.

  The film was etched to remove the portion of the first reflective layer where the mask layer was not printed. At this point, the portion from which the first reflective layer has been removed is transparent, but the hologram pattern formed on the first hologram forming layer can be confirmed. A silver hologram could be confirmed in the portion where the first reflective layer remained.

  On the 1st hologram formation layer from which the mask layer and the 1st reflection layer were removed, it printed with the gravure coater in order of the anchor layer and the 2nd hologram formation layer. As the second hologram forming layer, a layer to which an orange dye was added was used. After oven drying, the film thickness of the second hologram forming layer was 2 μm.

  This film was hot-pressed with a roll embossing device using a stamper having a pattern different from the pattern formed on the first hologram forming layer to form a hologram pattern on the second hologram forming layer.

  Aluminum vapor deposition was performed on the second hologram forming layer to provide a second reflective layer. The film thickness of aluminum vapor deposition was 50 nm. At this point, when the film is viewed from the support side, the portion where the first reflective layer is left can be confirmed as silver in the hologram pattern formed on the first hologram forming layer, and the portion where the first reflective layer is removed is the first portion. 2 The hologram pattern formed on the hologram forming layer was confirmed to be gold.

  Printing was performed with a gravure coater in the order of the anchor layer and the adhesive layer on the second reflective layer. After oven drying, the film thickness of the adhesive layer was 3 μm. As described above, the transfer of the present invention having the structure of the support / release layer / first hologram forming layer / first reflective layer / mask layer / anchor layer / second hologram forming layer / second reflective layer / anchor layer / adhesive layer. A foil was obtained.

  Using the transfer foil of the present embodiment configured as described above, a transfer product having the same appearance as the security films of Examples 1 to 3 by being affixed to printed matter such as banknotes, gift certificates, certificates and cards. Can be given to a part of the printed matter.

  In the present embodiment, the case where the reflective layer formed by aluminum vapor deposition is provided as the first reflective layer and the second reflective layer has been described. Can be applied as well. At this time, in order to conceal the hologram pattern by the second hologram forming layer, the material of the first reflective layer is limited to a material having low transmittance, but the second reflective layer does not require concealability, It is also possible to use a material having high transmittance such as zinc sulfide and titanium dioxide. Further, by selecting a combination of materials having different hues as the material of the reflective layer, it is possible to express different holographic designs without coloring.

It is sectional drawing of the security film which shows one Example of this invention. It is a top view of the security film which shows one Example of this invention. It is sectional drawing of the security film which shows one Example of this invention. It is sectional drawing of the security film which shows one Example of this invention. It is a top view of the security film which shows one Example of this invention. It is sectional drawing of the transfer foil which shows one Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Support body 2, 20, 21 ... Anchor layer 3 ... 1st hologram formation layer 4 ... 1st reflection layer 5 ... 2nd hologram formation layer 6 ... 2nd reflection layer 7 ... Adhesive layer 8 ... 1st pattern part 9 ... 2nd design part 10 ... colored layer (2)
11 ... Colored layer (1)
12 ... 1st pattern coloring part 13 ... 2nd pattern coloring part A
14 ... 2nd pattern coloring part B
15 ... 2nd pattern coloring part C
16 ... 2nd pattern coloring part D
17 ... 1st pattern non-colored part 18 ... Release layer 19 ... Mask layer 22 ... Adhesive layer

Claims (9)

A first hologram forming layer containing at least an ultraviolet curable resin selected from polyacrylate or polyurethane on one side of the support, a first reflective layer made of aluminum , a mask layer, a first anchor layer, a second hologram forming layer, A security film, wherein a second reflective layer and a second anchor layer made of zinc sulfide or titanium dioxide are sequentially laminated, and the first reflective layer partially exists.   The security film according to claim 1, wherein the second hologram forming layer has a hologram design different from that of the first hologram forming layer.   The security film according to claim 1 or 2, wherein the second hologram forming layer is colored with a pigment or a dye.   The security film according to any one of claims 1 to 3, wherein a colored layer (1) is provided between the first reflective layer and the second hologram forming layer.   The security film according to claim 1, wherein the first hologram forming layer is colored with a pigment or a dye.   The security film according to claim 1, wherein a colored layer (2) is provided between the support and the first hologram forming layer.   The security film according to claim 1, wherein the first reflective layer and the second reflective layer are a combination of materials having different colors.   A release layer is provided between the support of the security film according to claim 1 and the first hologram forming layer, and an adhesive layer is provided on the second anchor layer. Transfer foil characterized by   A printed matter, wherein a hologram pattern is provided on at least one part using the security film according to claim 1 and / or the transfer foil according to claim 8.

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