JP2003191671A - Information medium with scratching covering layer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information medium with a scratching covering layer in which a shadow of secret information data cannot be visually recognized from a reverse surface (rear surface) without increasing a manufacturing cost, and which has a sharpness in an image of the layer of the uppermost surface and the degree of freedoms of designing and in which in-line processing can be conducted by an offset printer to form the layer. <P>SOLUTION: The information medium with the scratching, covering layer comprises a rear surface covering layer, an information layer having a non- release layer made of a secret information data image and an easy release layer made of a non-image part and complementarily formed with the non- release layer, and the scratching covering layer sequentially formed on a base. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information medium with a scratch masking layer, such as lottery tickets and game cards, in which confidential information data is masked by a scratch masking layer. The present invention relates to an information medium with a scratch masking layer that recognizes confidential information data by scratching off (scratching) with a coin or the like.

[0002]

2. Description of the Related Art Conventionally, for example, in an instant lottery ticket or a game card, in order to conceal confidential information data such as "hit", "miss" or a pattern corresponding thereto, hiding and scratching properties ( Scratch printed material in which the confidential information data is hidden by a rubber-based ink that has scratch resistance and has cohesive destruction properties, and the purchased customer uses the coin to scratch off the confidential information data when using it. Are known and used in various fields.

As a printed matter provided with the scratch concealing layer, for example, as shown in a schematic view of a laminated cross section of FIG. 4, a pattern, a character,
The confidential information data (12) such as numbers are printed,
An easily peelable layer (14) made of a transparent peeling varnish or the like is formed so as to cover the confidential information data (12), and a scratch masking layer (20) is provided on the easily peelable layer (14). is there.

A customer who purchases this scratch printed matter scratches off (scratches) the scratch concealing layer (20) with a coin, a nail, or the like to "hit" or "fall off".
Or the like, or the confidential information data (12) such as a picture corresponding thereto can be visually recognized.

[0005]

However, when the base material (10) is a relatively thin paper, for example, when this printed matter is exposed to strong light and viewed from the opposite side, the confidential information data (12) is obtained. There is a problem that security is lacking because the shadow of () is transparent and it is not confidential information data.

As a method of solving this problem, for example, as shown in the schematic view of the laminated cross section of FIG.
There is a method of providing the watermark prevention layer (24) on the back surface of (0) by printing with a gray ink, but there is a limit to the amount of information on the back surface, and it does not look good in terms of design and there is no freedom. There's a problem.

Further, the scratch masking layer (20) is supplemented by thickening it by printing twice, or the base material (10) is expensive and printing or processing thereof is difficult (production efficiency is deteriorated). I was aware of this and used thick paper to solve this see-through problem.

In any of the above measures to prevent the shadow of the confidential information data (12) from being seen through under such strong light, the material such as the base material (10), ink, printing, etc. There is a problem that the number of steps is increased, that is, a so-called manufacturing cost is increased.

The scratch concealing layer (20) on the outermost surface
Is a function of concealing the confidential information data (12), and is therefore an opaque solid image of silver or gray (in printing terms, there is no difference in lightness or darkness on the printed surface,
The part that is completely covered with printing ink) must be formed.

Therefore, the scratch print has a problem in that there is no degree of freedom in designing the scratch concealing layer (20) and the design does not look good.

Furthermore, a screen printing method is generally used to form the outermost scratch concealing layer (20) with a thickness of about 4 to 10 μm. As the ink, for example, aluminum powder 15 to 25 is used. Parts by weight, 15 to 25 parts by weight of a coloring pigment including an extender pigment such as white alumina,
15 to 25 parts by weight of synthetic rubber resin such as SBR and NBR having cohesive failure (nodule), 35 to 45 parts by weight of aromatic hydrocarbon solvent such as toluene, xylene and methyl isobutyl ketone, and an antifoaming agent 5 to 15 parts by weight of the agent is added to form an ink for screen printing.

[0012] As described above, since the rubber-based (fluffy) ink having cohesive failure (nodularity) has a large thickness of about 4 to 10 µm, the image has no sharpness and is a slow-drying scratch for a screen. Since the line speed of the ink is slow, the leveling of the ink progresses after the scratch concealment layer (20) is printed and before it is dried, and the irregularities of the confidential information data (12) appear on the surface of the scratch concealment layer (20). There was a problem that it was not confidential.

Further, since it is slow-drying, it is inferior in productivity, and it is unsuitable for in-line processing particularly in an offset printing machine for printing other images, and it is unavoidable to form it on a separate line.

The present invention solves the above-mentioned problems of the prior art. The problem is that even if strong light is given, not only the front surface but also the opposite surface (back surface) of confidential information data. It is an information medium with a scratch masking layer where the shadow of the scratch can not be visually recognized. There is no freedom in designing the back side by applying a watermark preventing layer as in the past, and there is no problem that it does not look good, and the scratch masking layer is printed twice. ,
Alternatively, there is no problem that the manufacturing cost is increased by using a thick paper that is expensive and difficult to print or process, and furthermore, the image of the scratch concealing layer on the outermost surface has sharpness,
In addition, it is possible to provide in-line processing with an offset printing machine for forming the scratch masking layer, and to provide an information medium with a scratch masking layer that has flexibility in design and is configured with a scratch masking layer that looks good. .

However, even if some effects cannot be expected due to the material, etc., other effects can be expected.
Of course, the invention of the present application can be applied as long as it exhibits the effect as compared with the conventional configuration.

[0016]

In order to achieve the above object in the present invention, first, in the invention of claim 1, a back surface concealing layer and a non-peeling layer formed of an image of confidential information data are provided in order on a substrate. And an information layer in which an easily peelable layer composed of a non-image part is formed in a complementary manner, and a scratch masking layer, and an information medium with a scratch masking layer.

According to the first aspect of the present invention, the confidential information data is an image formed of the scratch masking layer on the non-peeling layer that is not scratched off by scratching off. Before scratching off, since the scratch concealing layer on the easy peeling layer has the same thickness and the same material, and the information layer thereunder is also flat, no unevenness occurs.

Further, the easy peeling layer and the non-peeling layer are integrally formed as an information layer having the same thickness on the entire surface, and the scratch concealing layer can be watermarked by applying strong light from either the front or back side.
It is difficult to discriminate the easily peelable layer or the non-peelable layer portion from the information layer, so that the information medium with a scratch masking layer becomes difficult to visually recognize as confidential information data.

Even if there is a slight difference in coloring between the easily peelable layer and the non-peelable layer, for example, even if one side is yellow and the other side is colorless, it is visible from the backside through the backside concealment layer, which makes it difficult to see through. is there.

Even if it is difficult to see through, if the information layer is formed directly on the base material due to the difference in the materials of the easily peelable layer and the non-peelable layer, the difference in the degree of penetration into the base material Although it may occur, it may be visually recognized indirectly, but in the present invention, the presence of the back surface concealing layer prevents the substrate from seeping, and is visible even if there is a difference in the degree of the seeping. It's gone.

Further, as a result, it is not necessary to provide a watermark preventing layer on the back surface of the substrate as in the conventional information medium with a scratch masking layer, so that the degree of freedom in designing the back surface is increased, and the scratch masking layer is provided twice. Since printing or thick paper is not required, the manufacturing cost can be reduced.

Further, in the invention of claim 2, the scratch concealing layer is a solid pattern or a pattern unrelated to the confidential information data, and the information medium with the scratch concealing layer according to claim 1 is provided.

According to the second aspect of the invention, when the scratch masking layer is a solid pattern, the scratch masking layer on the easily peelable layer is visible as confidential information data. Since it is not necessary to increase the hiding property, the ink for forming the scratch hiding layer may be a colored ink without increasing the amount of aluminum powder etc. which deteriorates printability, and this printing method is also screen printing. In addition, a gravure method with high production efficiency, a roll coating method using a resin relief plate, or a flexo method can be applied.

When the scratch concealment layer has a pattern unrelated to the confidential information data, for example, a line drawing pattern composed of regular lines, halftone dots or irregular ground pattern, fine pattern, or line drawing pattern is used. By forming it, it is possible to provide the scratch-shielding layer-provided information medium with a degree of freedom in designing the scratch-covering layer on the outermost surface.

Further, in the invention of claim 3, the back surface hiding layer has a solid pattern, and the scratch hiding layer-provided information medium according to claim 1 or 2 is provided.

According to the third aspect of the present invention, when the back surface hiding layer has a solid pattern, the scratch hiding layer on the easily peelable layer is visually recognized as confidential information data.
Since it is not necessary to thicken the back surface hiding layer and to increase the hiding property, the ink for forming the back surface hiding layer may be a colored ink without increasing the amount of aluminum powder etc. which deteriorates printability. In addition to screen printing, a gravure method with high production efficiency, a roll coating method using resin letterpress, or a flexo method can be applied.

Before the scratch-off, the information layer is integrated with the same thickness on the entire surface, and even if a strong light is applied from the back side to make a watermark, the back side hiding layer makes it difficult to visually recognize as confidential information data. As a result, it is not necessary to apply a watermark prevention layer on the back surface side of the base material as in the conventional information medium with a scratch cover layer, and it is sufficient to provide the back surface hiding layer on the information layer side of the base material. More freedom in design.

For this reason, since the back surface hiding layer does not need to be thick and have a high hiding property as in the conventional case, the ink for forming the scratch hiding layer does not increase the amount of aluminum powder or the like which deteriorates printability. In addition to screen printing, this printing method can be applied to a gravure method with high production efficiency, a roll coating method using a resin letterpress, or a flexo method.

Further, in the invention of claim 4, the non-peelable layer and the easy-peelable layer have the same color which is colorless or pale, that is, the information layer has the same color. This is an information medium with a hiding layer.

According to the fourth aspect of the present invention, the non-peelable layer and the easy-peelable layer have the same color, that is, the information layer is colorless or light, so that the scratch concealing layer has a pattern unrelated to the confidential information data. The boundary between the non-peelable layer and the easy-peelable layer is not visible even when a part of the easy-peelable layer is visible, or even when viewed through a watermark. It is possible to provide a possible information medium with a scratch concealing layer, and it is possible to obtain a contrast between the non-peelable layer and the easily peelable layer when the colored scratch concealable layer forms confidential information data.

The non-peelable layer and the easily peelable layer, that is, the information layer may be transparent, semi-transparent, or opaque as long as it is colorless or light in the same color. In the case of transparent, even when the non-peelable layer and part of the easily peelable layer are visible, what is actually visible is the back surface concealment layer instead of the information layer, and the colored scratch concealment layer is confidential. The invention of the present application can be configured by making a contrast with the back surface hiding layer when forming the information data.

Therefore, in the invention of claim 5, the scratch masking layer is made of a scratch printing ink containing a styrene acrylic resin and / or a urethane resin as a binder. A few
Alternatively, it is an information medium with a scratch masking layer described in 4.

According to the fifth aspect of the present invention, the scratch masking layer is formed with a printing ink having excellent adhesion, using a styrene acrylic resin and / or a urethane resin as a binder, so that the scratch masking layer can be easily formed. There is a large difference in the adhesiveness between the release layer and the non-release layer, and as a result, the adhesion is further improved with respect to the non-release layer that forms the non-image area of the easy-release layer, and scratch-off during use results in the easy-release layer. Easily scratched off.

However, the non-peelable layer remains without being scratched off, and the remaining portion is recognized as confidential information data.

Moreover, since the printing ink for the scratch masking layer is quick-drying as compared with the conventional slow-drying ink using a synthetic rubber resin such as SBR or NBR as a binder, it has a regular or irregular line pattern, for example. Lines, halftone dots,
Fine prints or line drawings do not flow due to leveling, and are therefore excellent in sharpness.

Therefore, it is possible to provide an information medium with a scratch masking layer that looks good in the design of the scratch masking layer on the outermost surface.

Furthermore, since the ink for the scratch concealing layer is quick-drying, it forms a film without leveling, and the step at the boundary between the easily peelable layer and the non-peelable layer is not visually recognized as confidential information data on the surface, and It is possible to provide an information medium with a scratch masking layer that enables in-line printing in an offset printing machine.

The term "solid surface" in the above claim 1 is a printing term and means a portion which is completely covered with printing ink without any difference in lightness and darkness or white spots on the printing surface.

Further, the term "complementary" means that when a certain region is composed of a plurality of patterns, there is no partial region in which the patterns overlap, and there is no partial region without any pattern, the plurality of patterns are complementary to each other. .

Further, it goes without saying that the information medium shown in claim 1 includes a printed matter, but this information medium may be not only a so-called printed matter but also securities such as cards, sheets and various tickets. is there.

[0041]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention in which an information medium with a hiding layer is a printed material with a hiding layer will be described in detail below with reference to the drawings.

The information medium with a scratch masking layer of the present invention comprises:
As shown in the side sectional view of FIG.
0), an information layer (26) in which a back surface concealing layer (22), a non-peeling layer (16) made of an image of confidential information data and an easy peeling layer (14) made of a non-non-image part are complementarily formed in this order. ) Is a scratch concealment layer-attached printed matter (1) comprising a scratch concealment layer (20).

Since the non-peelable layer (16) and the easy-peelable layer (14) composed of the non-image area have complementary patterns, the non-peelable layer (1)
6) and the partial area where the easy peeling layer (14) is present,
There is no partial area where either one does not exist, and a solid pattern is formed as the information layer (26) together.

Therefore, in the present invention, as shown in the plan view of FIG. 1 (b) and the side sectional view of FIG. 1 (c) showing the BB plane cross section, for example, the scratch concealment layer-attached printed matter (1) is used.
When the scratch concealing layer (20) of No. 1 is scratched off (scraped) with a coin or the like, the scratch concealing layer (20) on the easy peeling layer (14) is peeled off to the right half of FIGS. 1 (b) and (c). The scratch concealing layer (20) left on the non-peeling layer (16) without being scratched off by the scratch-off as shown forms an “O” character, and this “O” character forms the confidential information data (12). It was made to become.

As the easily peelable layer (14), the scratch concealing layer (20) is made of an ink which is easily scratched off. For example, polyurethane acrylic resin, polyamide resin, nitrocellulose resin may be added with silicone or wax (polyethylene wax, etc.) as an additive. 5% by weight or less is added by screen printing, gravure printing, flexographic printing by printing through an anilox roller, or the like.

Further, for example, a release varnish obtained by adding about 5% by weight of a lubricant (silicone, polyethylene wax, etc.) to a vehicle of an offset ink (a component of a printing ink excluding color pigments and additives) is used. Examples of the resin include 20 to 30% by weight of rosin-modified phenol resin and alkyd resin as resin, 10 to 20% by weight of vegetable oil of soybean oil, linseed oil and tung oil, and 25 to 3 as solvent.
To the vehicle of the offset oil-based sheet-fed ink consisting of 5% by weight of mineral oil, naphthene, paraffin, etc., the above silicone, polyethylene wax, etc. were added, and further added as an additive.
An offset oily type release varnish composed of a dryer made of cobalt naphthenate of 10 wt% or the like, an oxidation inhibitor, a set-off preventing agent and the like can be mentioned.

Further, for example, 30 to 9 as a photopolymerizable material
0% by weight of polyols, polyesters, urethanes, acrylates of epoxies, as a modifying resin 10
To the vehicle of UV curable offset sheet-fed ink made of 40% by weight of ketone resin, petroleum resin, alkyd resin, etc., add the above silicone or polyethylene wax,
Further, as an additive, 5 to 10% by weight of benzophenone,
Examples thereof include a UV-curable offset release varnish composed of a photopolymerization initiator such as benzyl or dimethylamine benzophenone, and an additive such as a thermal polymerization inhibitor such as hydroquinone.

This is an ink (varnish) for the easily peelable layer, which is suitable for the production of the printed material with the scratch-shielding layer from the viewpoint of quick drying, and is formed by the offset printing method.

On the other hand, as the non-peeling layer (16), for example, in addition to the vehicle of the above-mentioned UV curable offset sheet-fed ink, a vehicle of a usual oxidation polymerization type offset sheet-fed ink or a vehicle of a gravure ink is transparent. A colorless varnish is preferably used, and the one having a large difference in adhesiveness with the scratch concealing layer (20) from the easily peelable layer (14) is preferably used, and therefore, the scratch concealing layer (20) on both sides is used.
Is peeled off on the easy peeling layer (14) due to scratch-off, and remains unpeeled on the non-peeling layer (16), which is visually recognized as secret information data (12).

Although these colorless varnishes (inks) may be lightly colored, when the scratch masking layer (20) is a line drawing such as a line like the invention of claim 2, the above-mentioned easy peeling layer is preferable. It is necessary to use the same color as the ink used for printing.

As shown in FIG. 1A, in the printed material (1) with a scratch masking layer having the above-mentioned structure, as shown in FIG. 1A, the scratch masking layer (20) on the non-peeling layer (16) which becomes the confidential information data when scratched off. ) And the scratch concealing layer (20) on the easy peeling layer (14) are integrated with the same thickness, and the non-peeling layer (16) and the easy peeling layer (14) are colorless or have the same color. The printed matter (1) with a scratch masking layer, which is difficult to be visually recognized as the confidential information data (12), can be obtained even when it is watermarked by applying strong light.

Further, unlike the conventional print with a scratch concealing layer shown in FIG. 5, it is not necessary to provide a watermark prevention layer (24) on the back surface of the base material, so that there is an advantage that the amount of information such as the back surface design and the degree of freedom increase. It can be provided.

Further, in the present invention, as shown in the side sectional view of FIG. 2 (a), the entire surface solid scratch hiding layer of the invention of claim 1 is provided with, for example, a regular line-shaped pattern (20a).
It is what

Such a regular linear pattern (2
When the scratch-shielding layer-provided printed matter (1) which is a scratch-shielding layer consisting of 0a) is scratched off, as shown in FIG. 2B, the scratch-shielding layer on the easy peeling layer (14) is scraped off and non-peeling off. The scratch masking layer on the layer (16) becomes visible as the confidential information data (12) as a regular line-shaped pattern (20a).

In this way, the scratch concealing layer is formed in a regular line-shaped pattern (20a) both before and after scratch-off.
With the above, the scratch concealing layer on the outermost surface and the design as the confidential information data can be provided with a degree of freedom, and the scratch concealing layer-provided printed matter (1) can be made to look good in terms of design.

In the above example, the scratch concealing layer has a regular line-shaped pattern (20a), but other regular line drawing patterns include, for example, a halftone dot pattern, a grid pattern, and a diagonal grid pattern. Can be mentioned.

The irregular line drawing pattern may be, for example, a tint block, a fine pattern, or a scratch masking layer having a camouflage pattern (20b) as shown in FIG.

Furthermore, a pattern consisting of lines is rough (60 lines /
For example, a pattern consisting of halftone dots (less than inch).

It is possible to appropriately select the scratch concealing layer (20) that looks good in design by these line drawing patterns.

Further, in the present invention, as shown in FIG. 1 (a), a scratch masking layer (20) is formed by using a printing ink containing a styrene acrylic resin and / or a urethane resin as a binder. The layered printed matter (1) is used.

The composition of the printing ink for scratch forming the scratch concealing layer (20) is, for example, a colored ink,
20-45 parts by weight of an aluminum paste (a fine aluminum powder is surface-treated with fatty acid or the like and made into a paste with mineral spirit having a high boiling point) and a coloring pigment to give a certain degree of hiding and scratching properties, a binder As a polyurethane synthetic resin or a styrene / acrylic copolymer resin, or a mixture of a polyurethane synthetic resin and a styrene / acrylic copolymer resin 25-
50 parts by weight, 1 to 10 parts by weight of an auxiliary agent such as an antifoaming agent, 10 to 3 parts
Examples thereof include those dispersed in 5 parts by weight of water and less than 5 parts by weight of a lower alcohol such as isopropyl alcohol, and a scratch printing ink having adhesion (adhesiveness) to the non-peeling layer (16) and quick drying property. can do.

Further, the conventional rubber-based printing ink for scratches uses toluene, xylene or the like as a solvent, and the Fire Service Act and the organic solvent poisoning prevention rule (Labor Safety and Sanitation Act)
Since there is a large cost burden in terms of compliance with the above, it was unsuitable for in-line application in an offset printing machine.

However, the scratch printing ink for use in the printed material with the scratch masking layer of the present invention has a styrene acrylic resin and / or urethane resin as a binder and is dispersed in water and a small amount of isopropyl alcohol to form an emulsion. From the viewpoint of compliance with the Fire Service Act and the Organic Law, it is also suitable for enabling in-line installation on an offset printing machine.

The base material (10) constituting the scratch concealment layer-attached printed matter (1), which is a kind of the scratch concealment layer-equipped information medium of the present invention, is, for example, an instant paper for instant lottery tickets or game cards, and art paper, Coated paper, or fine paper such as coated paper, coated balls, coated manila, double-sided cardboard such as paperboard, special securities paper, etc., and scratch cards as securities, white PET (polyethylene terephthalate), white PVC A (polyvinyl chloride) sheet and the like can be mentioned, which are appropriately selected according to the intended use.

Further, the composition of the printing ink for scratch forming the back surface hiding layer (22) is, for example, black and imparts a certain hiding property and scratching property, and at the same time, the non-peeling layer (16) is formed by scratching. As a matter of course for the portion provided on the upper side, also for the portion provided with the easy peeling layer (14) on the information layer (26), that is, the non-peeling layer (16) and the easy peeling layer (14). Various materials for preventing separation between the base material (10) and the base material (10) are mentioned, and the information layer (26), that is, the non-peelable layer (16), the easily peelable layer (14), and the base material (10). Adhesion to (adhesiveness)
And a printing ink for a back surface concealing layer having a quick drying property.

[0066]

Since the present invention has the above-mentioned constitution, it has the following effects.

That is, the back surface concealing layer, the information layer in which the non-peelable layer consisting of the image of the confidential information data and the easy-peelable layer consisting of the non-image part are complementarily formed on the base material, and the scratch concealing layer. And an information medium with a scratch masking layer.

As a result, before the scratch-off, the portion of the confidential information data is integrated with the scratch concealing layer on the easy peeling layer with the same thickness, so that strong light is applied from either the front surface or the back surface for watermarking. Even if you look at it, the information layer becomes difficult to see as confidential information data, and as a result, there is no need to apply a watermark prevention layer on the back surface of the base material unlike the conventional information medium with scratch concealing layer, so the back surface design is free. Since the scratch concealment layer does not need to be printed twice or thick paper is required, the manufacturing cost can be reduced.

Even if there is a slight difference in coloring between the easily peelable layer and the non-peelable layer, for example, even if one side is yellow and the other side is colorless, it is visible from the back side through the backside concealment layer, which makes it difficult to see through. There is an effect.

Further, as described above, since the scratch concealing layer on the easily peelable layer is visually recognized as confidential information data, it is not necessary to thicken the scratch concealing layer and increase the concealing property as in the conventional case. Also, the ink for forming the scratch masking layer may be a colored ink without increasing the amount of aluminum powder or the like that deteriorates printability.

Further, since the scratch concealment layer is a solid pattern or a pattern unrelated to the confidential information data, since the solid is sufficient, the printing method is not only the screen printing but also, for example, a gravure method with good production efficiency, a roll using a resin relief plate. The coat method or flexo method can be applied.

Further, by providing a pattern irrelevant to the confidential information data, it is possible to provide a degree of freedom in the design of the scratch concealing layer on the outermost surface, and to provide an information medium with a scratch concealing layer that looks good in design.

Further, the non-peelable layer and the easy-peelable layer are formed as an image (pattern) of a colorless or pale same color so that the information layer is combined, in particular, the scratch masking layer is formed as a regular or irregular line drawing pattern. The boundary between the non-peelable layer and the easy-peelable layer is not visually recognized even when a part of the non-peelable layer and the easy-peelable layer is visible, or when viewed through the watermark, and is recognized as an information layer as a whole. Since the confidential information data is not visible before scratch-off, it can be a highly reliable information medium with a scratch concealing layer, and when the colored scratch concealing layer forms the confidential information data, It is possible to obtain a contrast between the peeling layer region and the easy peeling layer region or the back surface hiding layer.

Furthermore, the scratch concealing layer is formed by a printing ink having a styrene-acrylic resin and / or a urethane resin as a binder and having excellent adhesion,
Since there was a large difference in the adhesiveness between the easily peelable layer and the non-peelable layer with respect to this scratch concealing layer, the adhesiveness with respect to the non-peelable layer was improved as a result, and when scratched off during use, the easily peelable layer was easily scratched. Although it was turned off, it remained without being scratched off on the non-peeling layer, and the remaining portion came to be recognized as confidential information data.

Moreover, the printing ink for the scratch masking layer is quick-drying as compared with the conventional slow-drying ink using a synthetic rubber resin such as SBR or NBR as a binder, and therefore has a regular or irregular line pattern, for example It is possible to provide an information medium with a scratch concealing layer, which is excellent in sharpness and the like in which lines, halftone dots, fine prints, line drawing patterns, etc. do not flow by leveling, and which is excellent in the design of the scratch concealing layer on the outermost surface.

Furthermore, since the ink for scratch concealing layer is quick-drying, it forms a film without leveling, and the step at the boundary between the easily peelable layer and the non-peelable layer is visually recognized as confidential information data on the surface of the scratch concealing layer. It is possible to provide an information medium with a scratch concealing layer that is free of in-line and that can be inlined in an offset printing machine.

Therefore, the present invention exhibits an excellent practical effect as an information medium with a scratch masking layer in which confidential information data is masked by a scratch masking layer such as an instant lottery ticket or a game card.

[Brief description of drawings]

1A and 1B are views for explaining an embodiment of a printed material with a scratch masking layer of the present invention, in which FIG. 1A is a side sectional view thereof, and FIG. 1B is a plan view in which the right half thereof is scratched off. And (c) is a cross-sectional view taken along the line BB of (b).

2A and 2B are views for explaining another embodiment of the printed material with a scratch masking layer of the present invention, in which FIG. 2A is a side sectional view thereof, and FIG. 2B is a scratched side sectional view. is there.

FIG. 3 is a plan view showing an example of a scratch masking layer which constitutes the printed material with a scratch masking layer of the present invention.

FIG. 4 is an explanatory diagram showing a side cross-section of an example of a conventional printed material with a scratch masking layer.

FIG. 5 is an explanatory view showing another example of a conventional printed material with a scratch masking layer in a side section.

[Explanation of symbols]

1 ... Printed matter with scratch masking layer 10 ... Base material 12 ... Confidential information data 14 ... Easy peeling layer 16 ... Non-peeling layer 20 ... Scratch concealing layer with full surface 20a ... Scratch concealing layer having a line-shaped pattern 20b ... A scratch masking layer having a camouflage pattern 22 ... Back surface hiding layer 24 Watermark prevention layer 26 ... Information layer

Claims (5)

[Claims] 1. A back surface concealment layer, an information layer on which a non-peelable layer composed of an image of confidential information data and an easy-peelable layer composed of a non-image area are complementarily formed on a base material, and a scratch concealed layer. An information medium with a scratch masking layer. 2. The information medium with a scratch masking layer according to claim 1, wherein the scratch masking layer is a solid pattern or a pattern unrelated to confidential information data. 3. The information medium with a scratch masking layer according to claim 1, wherein the back masking layer has a solid pattern. 4. The non-peelable layer and the easy-peelable layer are colorless or light in the same color.
The information medium with a scratch-masking layer as described. 5. The scratch masking layer according to claim 1, 2, 3 or 4, wherein the scratch masking layer is made of a printing ink for scratch using a styrene acrylic resin and / or a urethane resin as a binder. Attached information medium.