JP2008268487A - Hologram transfer foil and business form using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hologram transfer foil for protecting peculiar information mentioned or printed on a business form from alterations, and to provide the business form using the hologram transfer foil. <P>SOLUTION: The hologram transfer foil is constituted by successively forming at least a protective layer, a hologram forming layer and a transparent adhesive agent layer on one side of a supporting substrate, and forming a metal thin film layer having a thickness of ≤0.02 μm between the hologram forming layer and the transparent adhesive agent layer. The business form uses the hologram transfer foil, the peculiar information is mentioned or printed in a prescribed area of the business form. The business form uses the hologram transfer foil where the transfer foil is transferred while the peculiar information is covered therewith. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a hologram transfer foil having a thin reflective layer (metal thin film layer) and a form using the hologram transfer foil.

In recent years, holograms have been used in some credit cards and securities to prevent counterfeiting. In addition, since holograms have a high design effect, holograms have been used by being affixed to some printed materials and molded products.
Many of these holograms irradiate the object with light, condense the object light reflected from the object and the reference light using an optical system such as a lens, and form interference fringes on the surface of the recording medium coated with the photosensitive agent. It is produced by the method.
In addition to the above-described method for producing a hologram with interference fringes, there is also a method for producing interference fringes on a recording surface by calculation using a computer. The hologram produced by such a method is called a computer generated hologram or CGH (Computer Generated Hologram). This computer generated hologram is produced by performing an optical interference fringe generation process by computer simulation and recording the acquired image data on a medium.

In addition, there are many cases where information written or printed by handwriting is falsified in a form in which unique information is handwritten or printed.
Therefore, for the purpose of preventing counterfeiting of forms such as various cards, tickets or securities, a metal thin film layer is provided on the form surface, and the metal thin film layer is melted by a heating element such as a thermal head or a laser beam. There are known information display means for displaying variable information such as characters, symbols and codes. In addition, a printing paper in which an information recording medium including the metal thin film layer is incorporated in a paper base material has been proposed (see Patent Document 1).
On the other hand, for the purpose of improving the design of a form, it is known to stamp characters and designs as described above.
Such foil stamping is performed by placing a thermal transfer foil with an adhesive layer on the surface of the base material to be pressed, and applying pressure on the convex surface that protrudes in the shape of the characters or symbols, so that the characters or symbols are placed on the substrate surface. To form.

Since the metal thin film layer formed on the various cards and tickets as described above is formed on the support substrate by a forming means such as vacuum vapor deposition or sputtering, the cost becomes high in small lot production. In addition, as in the technique disclosed in Patent Document 1, a printing paper in which an information recording medium provided with a metal thin film layer is incorporated in a paper base is expensive and paper is produced at the paper making stage. Therefore, the material of the base material is limited to paper. Furthermore, although it is possible to partially provide a metal thin film layer, the position and shape of the paper making are set at the time of paper making, so when a printing manufacturer purchases such printing paper and performs printing processing, the metal thin film layer is provided. There was a problem that the position and shape of the layers could not be changed and the print design was limited.
As a technology to solve such problems, it is possible to produce small lots at low cost regardless of the material of the base material, a display area for displaying variable information can be formed at a desired position, and further displayed in the display area There has been provided a “foil stamping form” that can easily cope with changes in variable information (see, for example, Patent Document 2).

Japanese Patent Laid-Open No. 10-102398 JP 2004-216576 A

  Accordingly, the hologram transfer foil and the form using the hologram transfer foil of the present invention provide a hologram transfer foil for protecting the unique information of the written or printed form from tampering, and a form using the hologram transfer foil. For the purpose.

  In order to achieve the object, the first aspect of the hologram transfer foil of the present invention is a hologram in which at least a protective layer, a hologram forming layer, and a transparent adhesive layer are sequentially formed on one side of a support substrate. In the transfer foil, a metal thin film layer having a thickness of 0.02 μm or less is formed between the hologram forming layer and the transparent adhesive layer.

  The second aspect of the hologram transfer foil of the present invention is a hologram transfer foil in which at least a protective layer, a hologram forming layer, and a transparent adhesive layer are sequentially formed on one side of a supporting substrate, A metal thin film layer having a thickness of 0.03 μm or more is formed at least partly between the forming layer and the transparent adhesive layer.

  The third aspect of the hologram transfer foil of the present invention is that, in the first and second aspects, the transparent adhesive layer is an adhesive layer, and a protective material for protecting the adhesive layer is further formed. It is a feature.

  Further, the fourth aspect is a form using the hologram transfer foil of any one of the first and third aspects, and the specific information is written or printed in a predetermined area on the form. It is characterized by having been transferred in a state of covering.

  The fifth aspect is a form using the hologram transfer foil of the second or third aspect, and the form has specific information written or printed in a predetermined area, and the transfer foil is a metal thin film. The unique information is transferred in a visible state from an unformed portion.

1) A hologram transfer foil in which at least a protective layer, a hologram forming layer, and a transparent adhesive layer are sequentially formed on one side of a supporting substrate as in the first aspect of the hologram transfer foil of the present invention, Since the metal thin film layer having a thickness of 0.02 μm or less is formed between the hologram forming layer and the transparent adhesive layer, the metal thin film layer is formed on the entire surface. The existence and characteristics of can be confirmed.
Further, as in the fourth aspect, a form using the hologram transfer foil of the first or third aspect, wherein the form has specific information written or printed in a predetermined area, By being transferred in a state of covering the unique information, the hologram pattern is visually observed over the entire surface, so that the effect of preventing forgery is great, and the unique information described or printed in a wide area can be confirmed.
Further, since it is not necessary to use the hologram in a fixed pattern, the hologram transfer foil can be cut into a free size at a free position and used in a necessary part, so that the operation cost is reduced.
2) Further, as in the second aspect, a hologram transfer foil in which at least a protective layer, a hologram forming layer, and a transparent adhesive layer are sequentially formed on one side of a supporting base material, The presence and characteristics of the hologram should be clearly confirmed from the portion where the metal thin film layer is formed by forming a metal thin film layer having a thickness of 0.03 μm or more in at least a part between the transparent adhesive layers. Can do.
Further, as in the fifth aspect, a form using the hologram transfer foil according to any one of the second and third aspects, in which specific information is described or printed in a predetermined area, and the transfer foil is a metal By clearly transferring the unique information from a portion where no thin film is formed, it is possible to clearly check the written information or printed information of the portion pasted from the portion where the metal thin film layer is not formed. it can.
Furthermore, since the portion where the metal thin film is formed and the portion where the metal thin film is not formed are integrated, forgery of the hologram transfer foil and falsification of the data in the form using this hologram transfer foil are extremely difficult. Become.
3) Further, as in the third embodiment, in the first and second embodiments, the transparent adhesive layer is a pressure-sensitive adhesive layer, and a protective material for protecting the pressure-sensitive adhesive layer is further formed. It is possible to use anytime and anywhere without the need for a device for applying.

Hereinafter, the hologram transfer foil of the present invention and a form using the hologram transfer foil will be described with reference to the drawings.
FIG. 1 is a diagram for explaining an example of a form using the hologram transfer foil of the present invention, FIG. 2 is a diagram for explaining an example of the hologram transfer foil used in FIG. 1, and FIG. 2 is a cross-sectional view taken along the line AA in FIG. 2, FIG. 4 is a diagram for explaining another example of the form using the hologram transfer foil of the present invention, and FIG. 5 is a diagram of the hologram transfer foil used in FIG. FIG. 6 is a diagram for explaining an example, FIG. 6 is a sectional view taken along line BB in FIG. 5, and FIG. 7 is a diagram for explaining an example of a section of a form to which the hologram transfer foil explained in FIG. is there.

An example of a form using the hologram transfer foil of the present invention will be described with reference to FIG.
FIG. 1 shows an example of a “money consumption loan contract” for the form 2.
In the form 2, specific information 21 to be protected is written or printed at a plurality of locations (“borrowing amount”, “interest”, “repayment date”, “interest in case of overdue”).
Although the borrower's information “address, name, seal” is also included in the unique information, in the example shown in the figure, the information that is difficult for the lender to be tampered with is the portion covered with the hologram transfer foil 1 in the figure.
The form shown in the figure is saved with a copy for checking when it is tampered with, but if the part of the unique information is unclear, it causes a dispute.

Moreover, although not shown, the hologram transfer foil 1 shown in FIG. 1 is a hologram transfer foil in which at least a protective layer, a hologram forming layer, and a transparent adhesive layer are sequentially formed on one side of a supporting base material.
Further, a metal thin film layer having a thickness of 0.02 μm or less is formed between the hologram forming layer and the transparent adhesive layer.
By forming the metal thin film layer with a thickness of 0.02 μm or less, not only the printing information of the entire area where the hologram transfer foil was transferred but also the information written or printed by a printer etc. Can be visually recognized.

An example of the hologram transfer foil used in FIG. 1 will be described with reference to FIGS.
The hologram transfer foil in FIG. 2 shows a state before the hologram transfer foil used in FIG. 1 is transferred.
3 is a cross-sectional view taken along line AA of the transfer foil 100 in FIG.
The hologram transfer foil 100 before transfer shown in FIG. 3 has a protective layer or peeling layer 102, a hologram forming layer 103, a metal thin film layer 104 having a thickness of 0.02 μm or less, a transparent layer on one side of a support substrate 101. It is composed of a protective material 106 with an adhesive layer 105 and a release layer (not shown).
Since the metal thin film layer 104 is formed to a thickness of 0.02 μm or less, when the form on which the hologram is transferred is viewed from the front, the printed form of the form, or the information described and printed is displayed on the metal thin film layer. Visible through 104 is clearly visible. Further, when tilted by a predetermined angle, the metal thin film layer 104 becomes a reflective layer, and the formed hologram is clearly visible.

When the hologram transfer foil 100 is transferred to a form by a dedicated thermal transfer device or the like, the release layer 102 is made of a material that is released by heat and becomes a protective layer after being exposed to the outermost surface after transfer. The transparent adhesive layer 105 is composed of a heat-meltable heat-sensitive adhesive.
As a result, the support base material 101 is peeled off from the hologram transfer foil 100 when it is transferred using the transfer device, and the support base material 101 is not formed on the hologram transfer foil 1 after the transfer.
Also. When the transparent adhesive layer 105 is made of a heat-meltable heat-sensitive adhesive, the protective material 106 is not formed on the hologram transfer foil 100.

When the transfer foil 100 is manually transferred to a form, the release layer 102 is made of a material that peels at room temperature, and becomes a protective layer after being exposed to the outermost surface after transfer. At this time, the transparent adhesive layer 105 is made of an adhesive.
When the transparent adhesive layer 105 is composed of a pressure-sensitive adhesive, a protective material 106 for protecting the pressure-sensitive adhesive is formed on the pressure-sensitive adhesive surface.
When the transparent adhesive layer 105 is made of an adhesive and the transfer foil 100 is transferred to a form by hand, the support base 101 may be left without peeling to protect the hologram forming layer 103. .
As described above, when the support substrate 101 is transferred to the form surface while being formed on the hologram transfer foil, it is usually referred to as sticking without being transferred.
Therefore, in the following description, when the support substrate 101 is “transferred” to the form surface while being formed on the hologram transfer foil, it is described as “attachment”.

With reference to FIG. 4, another example of a form using the hologram transfer foil of the present invention will be described.
In the form 2 shown in FIG. 4, specific information 21 to be protected is described or printed at a plurality of locations (“borrowing amount”, “interest”, “repayment date”, “interest in case of arrears”) or printed. .
The borrower's information “address, name, seal” is also included in the specific information, but in the case of the example in the figure, the information that would not be tampered with by the lender is the “borrowing amount” covered with the hologram transfer foil 3 in the figure. Part.

Further, although not shown, the hologram transfer foil 3 shown in FIG. 4 has at least a protective layer, a hologram forming layer, and a transparent adhesive layer sequentially formed on one side of the supporting base material, and is transparent to the hologram forming layer. A patterned metal thin film layer having a thickness of 0.03 μm or more is formed between the adhesive layers.
The portion of the metal thin film layer where the metal thin film is not formed is removed by means such as etching in a process after the metal thin film is formed, and is in a transparent state.

  In the portion where the metal thin film layer is formed, the hologram pattern is clearly visible, and in the portion where the metal thin film layer is not formed, the unique information 21 described or printed on the form 2 is transferred to the hologram forming layer (not shown). And is clearly visible. The shape of the portion where the metal thin film layer is not formed can be freely set, and is also an element for preventing forgery.

An example of the hologram transfer foil used in FIG. 4 will be described with reference to FIG.
The hologram transfer foil 300 in FIG. 5 is a hologram transfer foil in a state before the hologram transfer foil used in FIG. 4 is transferred.
A metal thin film layer is formed in the peripheral portion of the hologram transfer foil 300, and a portion 3041 having no metal thin film layer in the central portion is a transparent portion.

FIG. 6 shows a cross section taken along line BB of the transfer foil 300 of FIG.
The hologram transfer foil 300 before transfer is provided on one side of a support substrate 301 with a protective layer or release layer 302, a hologram forming layer 303, a metal thin film layer 304 having a thickness of 0.03 μm or more, and a transparent adhesive layer 305. , Composed of a protective material 306 with a release layer (not shown).

In the metal thin film layer 304, a part 3041 having no metal thin film layer is formed.
The portion 3041 that does not have a part of the metal thin film layer is partially removed by a method such as etching as described above, and the removed portion is actually the adhesive layer 305.
The other layer components are the same as described in FIG.

With reference to FIG. 7, an example of a cross section of the form to which the hologram transfer foil described in FIG. 6 is transferred will be described.
In FIG. 7, the hologram transfer foil described in FIG. 6 is transferred to one side of the form 2.
As can be seen in the figure, the unique information 21 described or printed on the form 2 is covered and protected by the hologram transfer foil.
Since the metal thin film layer is formed with a thickness of 0.03 μm or more, when the form on which the hologram transfer foil is transferred is visually recognized, the design of the hologram forming layer 303 can be clearly seen, and some metal From the portion 3041 where there is no thin film layer, the unique information 21 described or printed on the form 2 is clearly visible.

When the hologram transfer foil 300 is transferred to a form by a thermal transfer device or the like, the release layer 302 is made of a material that is peeled off by heat, and becomes a protective layer of the hologram forming layer after the support substrate 301 is peeled off.
At this time, the transparent adhesive layer 305 is composed of a heat-meltable heat-sensitive adhesive.

  When the transparent adhesive layer 305 is made of an adhesive and the hologram transfer foil 300 is transferred to a form by hand, the hologram transfer layer 300 is not peeled off to protect the hologram forming layer 303. Attached to the form together with the foil.

With reference to FIG. 6, an example of the material used for hologram transfer foil 300 is demonstrated.
For the support substrate 301, for example, polyethylene terephthalate (polyester), polyvinyl chloride, polycarbonate, polyimide, polyamide, cellulose triacetate, polystyrene, acrylic, polypropylene, polyethylene and the like can be used.

As the protective layer or release layer, for example, a UV curable ink containing silicone such as dimethylpolysiloxane or diphenylpolysiloxane is preferably used.
If the silicone content is too low, the desired peeling performance cannot be obtained. On the other hand, if the silicone content is too high, the strength of the coating is lowered.

  The hologram forming layer 303 can be selected from resins such as acrylic, polystyrene, polyvinyl chloride, polycarbonate, melamine, epoxy, polyester, and urethane, and can be used alone or in combination. A thermoformable substance having a radically polymerizable unsaturated group, or a substance capable of being ionized radiation curable by adding a radically polymerizable unsaturated monomer thereto can be used.

A metal thin film such as aluminum that reflects light is preferably used for the metal thin film layer 304. The metal thin film layer 304 is formed by a thin film forming method such as a vacuum deposition method, a sputtering method, or an ion plating method.
When the metal thin film layer 304 is a thin film having a refractive index smaller than that of the hologram forming layer, that is, when it is used as an opaque layer, for example, chromium, iron, cobalt, nickel, copper, silver, gold, magnesium in addition to the above-described aluminum. , Lead, tin, cadmium, bismuth, titanium, zinc, indium, etc., or oxides, nitrides, alloys of these metals, etc. are used.

  When the metal thin film layer 304 is a thin film having a higher refractive index than the hologram forming layer, that is, when used as a transparent layer, zinc sulfide, titanium oxide, aluminum oxide, silicon oxide, antimony sulfide, or the like is used.

  The thickness of the metal thin film layer 304 is set according to the purpose. In many cases, it is used in the range of 0.005 μm to 1 μm, preferably 0.01 μm to 0.1 μm. When imparting permeability as in one of the present invention, it is used at 0.02 μm or less.

  When the adhesive layer 305 is a heat-sensitive adhesive layer, vinyl chloride resin, vinyl acetate resin, vinyl chloride-vinyl acetate copolymer resin, acrylic resin, polyester resin, polyurethane resin, polyamide resin, rubber It is used by appropriately selecting from modified products. These may be used alone or as a mixture of two or more, and may be used by adding a hard resin, a plasticizer, and other additives as necessary.

When the adhesive layer 305 is a pressure-sensitive adhesive, for example, an acrylic resin, an acrylate resin or a copolymer thereof, natural rubber, a styrene-butadiene copolymer, casein, gelatin, a rosin ester, a terpene resin, and a phenol type Select from resin, styrene resin, coumarone indene resin, polyvinyl ether, silicone resin, etc.
The pressure-sensitive adhesive layer 15 is preferably used with a thickness of 3 μm to 20 μm.

For the protective material 306, for example, a material obtained by applying polyethylene, wax, silicon or the like to the surface of semi-bleached paper, high-quality paper, glassy paper, or the like is often used.
A polyester film or the like can also be used for the protective material substrate.

  It is used as a means to prevent falsification of specific information on forms such as gift certificates, checks, bills, stock certificates, admission tickets, and cards that conform to these forms.

It is a figure for demonstrating an example of the form using the hologram transfer foil of this invention. It is a figure for demonstrating an example of the hologram transfer foil used in FIG. It is the sectional view on the AA line of FIG. It is a figure for demonstrating another example of the form which uses the hologram transfer foil of this invention. It is a figure for demonstrating an example of the hologram transfer foil used in FIG. FIG. 6 is a sectional view taken along line B-B in FIG. 5. It is a figure for demonstrating an example of the cross section of the form to which the hologram transfer foil demonstrated in FIG. 6 was transferred.

Explanation of symbols

1, 3 Transferred hologram transfer foil 2 Form 21 Unique information 100, 300 Hologram transfer foil before transfer 101, 301 Support base material 102, 302 Protective layer or release layer 103, 303 Hologram formation layer 104, 304 Metal thin film layer 105 , 305 Transparent adhesive layer 106, 306 Protective material 3041 Part without metal thin film layer

Claims (5)

A hologram transfer foil in which at least a protective layer, a hologram forming layer, and a transparent adhesive layer are sequentially formed on one side of a supporting substrate,
A hologram transfer foil, wherein a metal thin film layer having a thickness of 0.02 μm or less is formed between the hologram forming layer and a transparent adhesive layer. A hologram transfer foil in which at least a protective layer, a hologram forming layer, and a transparent adhesive layer are sequentially formed on one side of a supporting substrate,
A hologram transfer foil, wherein a metal thin film layer having a thickness of 0.03 μm or more is formed on at least a part between the hologram forming layer and the transparent adhesive layer. In the hologram transfer foil according to claim 1,
The hologram transfer foil, wherein the transparent adhesive layer is a pressure-sensitive adhesive layer, and a protective material for protecting the pressure-sensitive adhesive layer is further formed. A form using the hologram transfer foil according to claim 1,
In the form, specific information is written or printed in a predetermined area,
A form using a hologram transfer foil, wherein the transfer foil is transferred in a state of covering the specific information. A form using the hologram transfer foil according to claim 2,
In the form, specific information is written or printed in a predetermined area,
The transfer foil is a form using a hologram transfer foil, wherein the unique information is transferred from a portion where a metal thin film is not formed.

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