JP2001121852A - Card with scratch hiding layer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a card with a scratch hiding layer, in which the unevenness of a secret information is hard to be visually recognized on the surface of an OVD(optical variable device) layer in the card, in which the secret information is hidden with the scratch hiding layer, especially in the card with a scratch part having the OVD layer such as a hologram or the like. SOLUTION: In this card, the scratch hiding layer having the OVD layer is applied in order to hide the secret information data 50. This card with the scratch hiding layer is produced by laminating a scratch ink layer 30, a camouflaging pattern layer 20 having the building-up amount of 1 to 10 μm and the OVD layer 10 in the order named on the secret information data 50.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card for hiding confidential information with a scratch hiding layer, and more particularly to an OVD (Optical Variable) such as a hologram or a diffraction grating.
Device) or a card provided with a scratch hiding layer with a metal deposition layer.

[0002]

2. Description of the Related Art Conventionally, confidential information covered with scratch ink having both scratching and concealing properties is scratched off (peeled) by a coin or the like by a customer to recognize the confidential information. Scratch cards are known and are used in various fields.

In such a card or ticket, the confidential information (number, symbol, pattern, etc.) is read before scratching, or the scratch concealment layer is restored after the confidential information is read after scratching. It is an absolute requirement to prevent

As a measure for preventing the latter from restoring (preventing forgery) the scratch concealing layer, recently, an OV which requires a sophisticated manufacturing technique such as a hologram or a diffraction grating in the scratch portion is used.
There is a scratch card in which the D layer is applied by transfer or the like, or a metal evaporation layer is applied.

[0005] However, in particular, the scratch card with the OVD layer has an aluminum vapor-deposited foil on the surface to enhance the reflectivity.
Became protruding portions, so that they could be easily recognized on the OVD layer, and there was a fear that they would be read before the former scratch. That is, this confidential information is generally variable information, and numbers and symbols are printed by, for example, a thermal transfer method using a thermal head, or a toner transfer method using a laser, an ink jet method, and are formed by convex portions of 1 to 10 μm. In the dot impact method, 2 to 10 μm
Since it is formed by m concave portions, the difference between the concave and convex portions is visually recognized on the OVD layer surface. Therefore, even with the card with the scratch portion provided with the OVD layer, quality assurance in terms of security cannot be said to be perfect.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a card for concealing confidential information with a scratch concealment layer, especially a hologram or a diffraction grating. OVD (Optical
It is an object of the present invention to provide a card with a scratch concealing layer in which unevenness of confidential information is hardly visually recognized on the OVD layer surface in a card with a variable device) layer or a metal deposition layer.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, an OVD layer for hiding confidential information data or a scratch hiding layer with a metal deposition layer is provided. A card with a scratch concealing layer, wherein a scratch ink layer, a camouflage pattern layer, an OVD layer or a metal deposition layer is sequentially laminated on the confidential information data.

According to a second aspect of the present invention, there is provided the card with the scratch concealing layer according to the first aspect, wherein the height of the camouflage pattern layer is 1 to 10 μm.

According to a third aspect of the present invention, there is provided a card provided with an OVD layer for hiding confidential information data or a scratch concealing layer with a metal deposition layer, wherein the confidential information data is made of scratch ink. Camouflage pattern, O
A card with a scratch concealing layer, wherein a VD layer or a metal deposition layer is sequentially laminated.

Further, in the invention according to claim 4, the volume of the camouflage pattern layer made of the scratch ink is 1 to 10 μm.
4. The card with a scratch concealing layer according to claim 3, wherein m is m.

According to the first or second aspect of the present invention, O
By providing a camouflage pattern layer having a height of 1 to 10 μm between the VD layer or the metal vapor deposition layer and the scratch ink layer, the irregularities of the camouflage pattern layer are visually recognized on the OVD layer or the metal vapor deposition layer, and the irregularities and the confidential information As a result, the confidential information data consisting of numbers and the like becomes invisible because the unevenness of the data is canceled out. In addition to preventing the restoration of the scratch concealing layer (prevention of forgery), a card with a scratch concealing layer that is perfect for quality assurance can be obtained.

Further, according to the third or fourth aspect of the present invention, a camouflage pattern layer made of scratch ink with a volume of 1 to 10 μm is provided between the OVD layer or the metal deposition layer and the secret information data section. The irregularities of the camouflage pattern layer made of scratch ink are visually recognized on the surface of the OVD layer or the metal deposition layer, and the irregularities and the irregularities of the confidential information data portion are canceled out, so that the confidential information data consisting of numbers and the like becomes invisible and the scratch concealment layer In addition to the prevention of restoration (forgery prevention), a card with a scratch concealing layer can be used to ensure quality assurance.

[0013]

Embodiments of the present invention will be described below. As shown in the plan view of FIG. 1, the present invention relates to a card for hiding confidential information data (50) with a scratch hiding layer (100). In particular, an OVD layer such as a hologram or a diffraction grating or a metal deposition layer is a scratch hiding layer. The present invention relates to a card (1) with a scratch concealing layer provided on the surface of (100).

Therefore, first, the invention according to claim 1 or 2 is, for example, as shown in the side sectional view of FIG.
0), a release layer (40) is provided so as to cover the confidential information data (50), and a scratch ink layer (3) is provided thereon.
0), a card with a scratch concealing layer (1) in which a camouflage pattern layer (20) and a hologram OVD layer (10) made of an aluminum vapor-deposited layer are sequentially laminated. 〜１０10 μm.

As the base material (60) constituting the card (1) with the scratch concealing layer of the present invention, for example, white polyethylene terephthalate (PET) used for telephone cards and the like, credit cards and the like are used. White vinyl chloride (PVC).

Also, variable confidential information data (50) such as numbers, symbols, patterns, etc., is transferred to a predetermined position on the substrate (60) by, for example, a thermal transfer method using a thermal head, an ink jet method, or a toner transfer method using a laser. Alternatively, it is formed by a dot impact method or the like. In the dot impact method, the image portion has a concave portion of 2 to 10 μm, and in other cases, a convex portion of 1 to 10 μm is formed.

On the confidential information data (50), a release layer (40) which secures the scratch (peel) property of the scratch ink layer (30) and protects the confidential information data (50).
Is generally applied, and is applied at a height of 1 to 10 μm so as to smooth the unevenness of the image portion of the confidential information data portion (50). As the release layer (40), for example, a material obtained by adding 5% or less of silicone or wax (eg, polyethylene wax) as an additive to a polyurethane acrylic resin, a polyamide resin, or a nitrocellulose resin is partially applied by screen printing, gravure printing, or the like. Is obtained.

The scratch ink layer (30) constituting the card (1) with the scratch concealing layer according to the invention is, for example, a rubber-based resin such as SBR or NBR having cohesive failure (lumps) having a thickness of 3 to 10 μm. In addition, it can be obtained by partial coating using a screen printing method or the like. Further, aluminum powder, carbon black, or the like can be added to the above resin in order to supplement the concealing property of the OVD layer (10). By this sticky scratch ink layer (30), at the time of scratching, the scratch property is ensured and the OVD layer (1
The powder of the aluminum vapor-deposited layer forming 0) is prevented from adhering to hands and clothes and becoming dirty.

The camouflage pattern layer (20) constituting the card (1) with a scratch concealing layer according to the present invention includes:
For example, based on a random pattern as shown in FIG.
The height (height of the image) is 1 to 10 μm. If it is less than 1 μm, the irregularities of the confidential information data (50) cannot be hidden.
Since the transfer of the D layer (10) becomes difficult and the surface unevenness becomes remarkable, the design effect of the OVD such as a hologram is lost, which is not preferable. Further, the line width (21) is equal to the line width (21) of the confidential information data (50).
It is preferable to set it to 3 mm. If the line width (21) is less than 0.3 mm, the numbers and symbols of the confidential information data (50) are not hidden by the camouflage pattern and are difficult to print, and if it exceeds 3 mm, the effect of confusing the confidential information data is lost, which is not preferable. Although the negative type of the pattern shown in FIG. 4 is also effective, a positive type (positive type in FIG. 4) is preferable when only the transferability of the OVD layer or the like is considered.

The camouflage pattern layer (20) is made of, for example, nitrocellulose resin or acrylic resin as an additive.
% Or less to which silicon or wax is added.
It can be obtained by screen printing or the like with a height of μm.

Further, the OVD layer (10) constituting the card (1) with the scratch concealing layer of the present invention is formed by, for example, using a thermal head or the like from an OVD transfer sheet (5) as shown in the side sectional view of FIG. Camouflage pattern layer (20)
Transferred to the top.

As an example of the OVD transfer sheet (5), an easily peelable layer (17) made of a thermoplastic acrylic resin, a vinyl chloride-vinyl acetate copolymer resin or the like is provided on a support (16) made of a polyethylene terephthalate film or the like. The back coat layer (1) is formed on the back surface of the support (16) (the surface opposite to the surface on which the easily peelable layer (17) is formed).
5) is formed.

The OVD layer (1) is formed on the easy peeling layer (17).
0) is formed, and the OVD layer (10) has an OVD relief pattern such as a hologram or a diffraction grating having a design effect and a forgery prevention effect formed on the surface opposite to the easily peelable layer (17). Forming layer (10a) made of thermoplastic resin such as polystyrene resin, polyvinyl chloride resin, etc., unsaturated polyester resin, etc., and a reflective thin film made of a vapor-deposited aluminum film having a masking property on the surface of the OVD relief pattern. It has a configuration in which a layer (10b) is formed.

Further, an adhesive layer (18) is laminated on the reflective thin film layer (10b).
By heating and pressing from the back coat layer (15) side of the VD transfer sheet (5), the VD transfer sheet (5) is peeled off from the easily peelable layer (17), and as shown in FIG. ) Is transferred as an OVD layer (10) onto the card having a scratch hiding layer (1).

As another embodiment of the card with a scratch concealing layer (1), the invention according to claim 3 or 4 is, for example, as shown in the side sectional view of FIG. A release layer (40) is provided so as to cover the information data (50), and a camouflage pattern layer (23) made of scratch ink and an OVD layer (10) such as a hologram having an aluminum vapor-deposited film are sequentially laminated thereon. A card with a scratch concealing layer (1), wherein the volume of the camouflage pattern layer (23) made of the scratch ink is 1 to 10 μm.

The base material (60) constituting the card (1) with the scratch concealing layer of the present invention, the confidential information data (5
0), the release layer (40) and the OVD layer (10) are the same as those in the first or second aspect of the present invention. As the camouflage pattern layer (23) made of scratch ink, for example, as shown in FIG. Based on such a random pattern, the height (height of the image) is 1 to 10 μm.
If it is less than 1 μm, the irregularities of the confidential information data (50) cannot be hidden, and if it exceeds 10 μm, the transfer of the OVD layer (10) becomes difficult, and the irregularities on the surface become remarkable. It is not preferable because the effect is lost. Preferably, the line width is 0.3 to 3 mm, which is equivalent to the line width of the confidential information data (50). When the line width is less than 0.3 mm, the numbers and symbols of the confidential information data (50) are not hidden by the camouflage pattern and are difficult to print. When the line width exceeds 3 mm, the effect of confusing the confidential information data is lost. Further, it is desirable that the image area of the camouflage pattern layer (23) made of scratch ink has a larger area than the non-image area. This is because if the adhesion area between the release layer (40) and the OVD layer (10) becomes large, there is a fear that the scratching property is lacking. Therefore, a fine camouflage pattern naturally results.

The camouflage pattern layer (23) made of the scratch ink is obtained by a screen printing method using the same material as the scratch ink layer (30) used in the first aspect.

[0028]

As described above, the present invention has the following effects. That is, in a card provided with a scratch concealing layer with an OVD layer for concealing confidential information data, a scratch ink layer, a camouflage pattern layer having a fill volume of 1 to 10 μm, and an OVD layer are sequentially laminated on the confidential information data. This makes it impossible for anyone other than the customer to see the confidential information data consisting of numbers and the like before scratching, so that the scratch concealment layer cannot be restored (forged) after scratching, and a scratch concealment layer is provided to ensure quality. Can be a card.

An O for hiding confidential information data
In a card provided with a scratch hiding layer with a VD layer,
Since the camouflage pattern layer of 1 to 10 μm in volume and the OVD layer made of scratch ink are sequentially laminated on the confidential information data, a person other than the customer can view the confidential information data consisting of numbers or the like before scratching. And the restoration (forgery) of the scratch concealing layer after scratching is impossible, and a card with a scratch concealing layer that is perfect for quality assurance can be obtained.

Therefore, the present invention exhibits an excellent practical effect as a card with a scratch concealing layer for concealing confidential information.

[Brief description of the drawings]

FIG. 1 is a front view for explaining an embodiment of a card with a scratch concealing layer of the present invention.

FIG. 2 is an explanatory diagram showing an embodiment of a card with a scratch concealing layer of the present invention in a side cross section.

FIG. 3 is an explanatory view showing another embodiment of the card with a scratch concealing layer of the present invention in a side cross section.

FIG. 4 is an enlarged front view showing an example of a camouflage pattern constituting the card with a scratch concealing layer of the present invention.

FIG. 5 is an explanatory view showing an example of an OVD transfer sheet for forming an OVD layer constituting the card with a scratch hiding layer of the present invention in a side cross section.

[Explanation of symbols]

 Reference Signs List 1 card with scratch concealing layer 5 OVD transfer sheet 10 OVD layer 10 a relief forming layer 10 b reflective thin layer 15 backcoat layer 16 support 17 easy release layer 18 {Adhesive layer 20} Camouflage pattern layer 21 {Line width 23} Camouflage pattern layer made of scratch ink 30} Scratch ink layer 40} Release layer 50 {Confidential information data 60} Substrate 100} Scratch hiding layer

Claims (4)

[Claims] 1. A card provided with an OVD layer for hiding confidential information data or a scratch concealing layer with a metal deposition layer, wherein a scratch ink layer, a camouflage pattern layer, an OVD layer or A card with a scratch concealing layer, wherein a metal deposition layer is sequentially laminated. 2. The method according to claim 1, wherein the amount of the camouflage pattern layer is 1-10.
2. The card with a scratch concealing layer according to claim 1, wherein the card has a thickness of μm. 3. A card provided with an OVD layer for hiding confidential information data or a scratch concealing layer with a metal vapor deposition layer, wherein a camouflage pattern made of a scratch ink, an OVD layer or a metal is provided on the confidential information data. A card with a scratch concealing layer, wherein a vapor deposition layer is sequentially laminated. 4. The card with a scratch concealing layer according to claim 3, wherein the amount of the camouflage pattern layer made of the scratch ink is 1 to 10 μm.