JP2003191672A - 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 having a non-release layer as 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 the schematic view of the laminated cross section of FIG. 6, 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 for 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.

Accordingly, the scratch printed matter has a problem that the scratch concealing layer (20) does not have a degree of freedom in design and does not look good in terms of design.

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]

To achieve the above object in the present invention, first, in the invention of claim 1, a back surface concealing layer and a complementary image of an image of confidential information data are sequentially formed on a base material. An information medium with a scratch masking layer, comprising an easily peelable layer forming a non-image area and a scratch masking layer having a smooth surface.

According to the first aspect of the present invention, the scratch concealing layer itself adhered to the non-image area of the easily peelable layer which is left without being scratched off by scratching off is used as confidential information data, and this portion and scratches are provided. Since the scratch concealment layer of the part that is turned off is integrated, before scratching it is reliable in terms of security that is difficult to see as confidential information data even when viewed through a strong light and seeing through,
It is possible to provide an information medium with a scratch concealing layer that does not require a watermark prevention layer on the back surface and does not require thick paper or the like as in the conventional case, gives flexibility to the design on the back surface, and does not increase the cost.

Even if there is a slight difference in coloring between the easy peeling layer and the scratch concealing layer, for example, even when one is yellow and the other is colorless, it is visible through the backside concealing layer from the back side, which makes it difficult to see through. is there.

Further, even if it is difficult to see through, when formed directly on the substrate due to the difference in the materials of the easy peeling layer and the scratch concealing layer, there may be a difference in the degree of penetration into the substrate. There is a case where it is visually recognized by this, but in the present invention, the presence of the back surface hiding layer does not cause the substrate to soak, and it is not visually recognized even if there is a difference in the degree of the soaking. It is a thing.

Further, as a result, there is no need 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, since the scratch masking layer is not directly formed on the base material, there is an effect of preventing the unevenness of the base material from directly affecting the quality of the slurratch. This is particularly effective when the surface of the base material is not smooth like matte paper.

In addition, such unevenness of the base material may affect the shape of the surface of the scratch masking layer, and the confidential information data is recognized by the unevenness of the scratch masking layer surface based on such unevenness of the base material. It also becomes possible to prevent the phenomenon.

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 scratch concealing layer-equipped information medium according to claim 1 is provided.

According to the second aspect of the present invention, when the scratch masking layer has a solid pattern, the scratch masking layer on the easily peelable layer is visually recognized 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 regular line, a halftone dot or an irregular ground pattern, a fine pattern, or a line drawing pattern made up of a line drawing pattern or the like 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.

According to 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 scratch-off, the back surface hiding layer provides an information medium with a scratch hiding layer that is difficult to see as confidential information data even if a strong light is applied from the back surface for watermarking. As a result, a conventional hiding layer with a scratch hiding layer is provided. Unlike the information medium, it is not necessary to provide a watermark preventing layer on the back surface side of the base material, and it is sufficient to provide the back surface masking layer on the scratch masking layer side of the base material, so that the degree of freedom in designing the back surface increases.

For this reason, since it is not necessary to make the back surface hiding layer thicker as in the conventional case and to improve the hiding property, 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 scratch masking layer is formed of a printing ink for scratch using a styrene acrylic resin and / or a urethane resin as a binder. This is the information medium with the scratch concealment layer described.

According to the fourth aspect of the present invention, the scratch concealing layer is formed easily by using a printing ink having a styrene acrylic resin and / or a urethane resin as a binder and having excellent adhesion. There is a large difference in the adhesion between the peeling layer and the back surface concealing layer with respect to the scratch concealing layer, and as a result, when scratching off during use, the easy peeling layer is easily scratched off.

On the other hand, on the image portion, the scratched off portion remains without being scratched off, and the remaining portion is 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, so that it has a regular or irregular line drawing 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 level difference at the boundary of the easily peelable layer is not visually recognized as confidential information data on the surface, and the ink is used in an offset printing machine. It is possible to provide an information medium with a scratch concealing layer that enables the inlining.

The term "solid surface" as used in claim 1 is a printing term and refers to a portion which is completely covered with printing ink without any difference in lightness and darkness or a white portion.

Further, the term "complementary" means that when a certain region is composed of a plurality of patterns, there is no partial region where the patterns overlap, and when 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.

[0039]

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) in the order of the back surface hiding layer (22) and the non-image part (16)
And a scratch concealing layer-attached printed matter (1) comprising a scratch concealing layer (20) continuously formed on the easy peeling layer (14).

Since the non-image area (16) and the easy peeling layer (14) are complementary patterns, there is no partial region where both the non-image area (16) and the easy peeling layer (14) exist, or either of them. There is no partial area.

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, this scratch concealed layer-attached printed matter (1).
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) that remains on the non-image area (16) without being scratched off by the scratch-off as shown forms an "O" character, and this "O" character is the confidential information data. (12) An information medium (1) with a scratch concealing layer adapted to be (12).

As described above, the scratch concealing layer (20) itself which is not scratched off by scratching off becomes the confidential information data (12), and this part and the scratch concealing layer (20) of the part to be scratched off are integrated. Therefore, before scratch-off, the information medium (1) with a scratch-concealment layer is reliable in terms of security, which is difficult to see as confidential information data (12) even when viewed through a strong light to see through. It is possible to give freedom to the design on the back side.

Further, by using the scratch concealing layer (20) which is the confidential information data (12), for example, as shown in FIG.
As shown in the schematic diagram of, a large area of non-image area (16)
Then, the step (14a) of the easily peelable layer (14) appears as a shadow on the surface of the scratch concealing layer (20), and a problem that a defect in terms of security occurs can be solved. is there.

In the above case, the non-image area of the easy peeling layer which becomes the confidential information data (12) is replaced with the solid scratch concealing layer (2).
0), but a dot-like regular line drawing pattern (20a) as shown in FIG. 2 or a line-shaped scratch hiding layer (20b) as shown in FIG. Can also
Furthermore, a lattice shape, an oblique lattice shape, etc. may be mentioned.

The irregular line drawing pattern may be, for example, a tint block, a thin pattern, or a camouflage pattern (20c) as shown in FIG. 4, and further, a pattern consisting of lines and a rough pattern (60 lines). Examples include a pattern composed of halftone dots (less than 1 inch / inch) and the like, which can be appropriately selected as the scratch concealing layer (20) that looks better in design by these line drawing patterns.

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 peeling varnish is used in which about 5% by weight of a lubricant (silicone, polyethylene wax, etc.) is added to the vehicle of the offset ink (a component of the printing ink excluding the color pigment and additives).

Concretely, for example, as a resin, 20 to 30
Offset oily sheet containing 10% to 20% by weight of soybean oil, linseed oil, tung oil, etc. as a vegetable oil, 25% to 35% by weight of mineral oil, naphthene, paraffin, etc. as a solvent, such as rosin-modified phenol resin, alkyd resin, etc. The offset oil type of the above-mentioned silicone, polyethylene wax, etc. is added to the vehicle of the ink, and a dryer made of 5 to 10% by weight of cobalt naphthenate as an additive, an oxidation inhibitor, a set-off preventing agent, etc. A peeling varnish may be used.

Further, for example, as a photopolymerizable material, 30 to 9
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 easy peeling layer, which is suitable for the production of the printed material with the scratch masking layer from the viewpoint of quick drying, and can be formed by the offset printing method.

In the present invention, as shown in FIG. 1 (a), the 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 color,
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 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 the adhesion (adhesiveness) to the non-image area (16), that is, the back surface hiding layer (22) described later. A printing ink for scratch having a quick drying property can be obtained.

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 scratch-masked printed matter 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-shielding layer-attached printed matter (1), which is a kind of the scratch-shielding layer-attached information medium of the present invention, includes, for example, instant lottery tickets and game cards, 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 concealing layer (22) is, for example, black, and imparts some concealing property and scratching property, and at the same time, the easy peeling layer (14) is provided by scratching. As for the portion provided on the back surface, various materials can be used because peeling from the easily peelable layer (14) does not occur, and the back surface having adhesion (adhesiveness) to the easily peelable layer (14) and quick drying property. It can be used as a printing ink for a hiding layer.

[0058]

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

That is, the back surface concealing layer, the easy peeling layer forming a non-image portion forming a complementary image of the image of the confidential information, and the scratch concealing layer having a smooth surface are formed on the base material in this order. This is an information medium with a hiding layer.

As a result, in this confidential information data portion, since the easy peeling layer and the scratch concealing layer are integrated before scratch-off, no matter whether the strong light is applied from either the front surface or the back surface to make a watermark, the confidential information is confidential. It becomes hard to see as 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 a scratch concealment layer, so the degree of freedom in the design of the back surface increases and scratch concealment is also possible. Since double-printing of layers and thick paper are not required, the manufacturing cost can be reduced.

Even if there is a slight difference in coloring between the easy peeling layer and the scratch concealing layer, for example, even if one is yellow and the other is colorless, the back surface is visible through the back surface concealing 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 make the scratch concealing layer thick 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, the solid is sufficient, so that the printing method is screen printing, 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.

Since the printing ink for the scratch masking layer is quick-drying compared with the conventional slow-drying ink using a synthetic rubber resin such as SBR or NBR, it has a regular or irregular line drawing 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.

Therefore, the present invention exerts 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).

FIG. 2 is an explanatory plan view showing an example of a scratch concealing layer of a non-image area, which constitutes a printed material with a scratch concealing layer of the present invention.

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 another plan view showing an example of the scratch masking layer constituting the printed material with the scratch masking layer of the present invention in a plane.

FIG. 5 is an explanatory view showing another example of a scratch masking layer constituting a printed material with a scratch masking layer of the present invention in a plane.

FIG. 6 is an explanatory view showing a side cross section of an example of a conventional printed material with a scratch masking layer.

FIG. 7 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 14a: Step difference of easy peeling layer 16: Non-image area of easy peeling layer 20 Scratch concealment layer 20a ... Scratch concealing layer having a dot pattern 20b ... Scratch concealing layer having a line-shaped pattern 20c ... camouflage pattern 22 ... Back surface hiding layer 24 Watermark prevention layer

Claims (4)

[Claims] 1. A scratch comprising a back surface concealing layer, an easily peeling layer forming a non-image portion forming a complementary image of an image of confidential information data, and a scratch concealing layer having a smooth surface on a substrate in this order. Information medium with hidden 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 scratch concealing layer-attached information according to claim 1, 2 or 3, wherein the scratch concealing layer is made of a printing ink for scratch using a styrene acrylic resin and / or a urethane resin as a binder. Medium.