JP2003266980A - Printed material with peelable hiding layer - Google Patents

Abstract

(57) [Summary] [Problem] Sensitive information data cannot be visually recognized even in strong light, the production cost does not increase, and the image of the concealment layer on the outermost surface has sharpness, and the formation of the concealment layer is offset. An object of the present invention is to provide a printed material with a peelable concealing layer that is made of a concealing layer that allows inline processing in a printing machine and has a degree of freedom in its design. A colorless, high-adhesion anchor varnish layer (16) comprising an image of confidential information data is applied to the surface of a polypropylene coating layer (18), and a solid styrene-acrylic resin and a urethane-based resin which are dark and solid to cover the periphery thereof. The printed matter 1 with a peelable concealing layer provided with a peelable concealing layer 22 made of a printing ink using as a binder, wherein the confidential information data is
This is the printed matter 1 with a peelable concealing layer formed of the peelable concealing layer 22 on the high adhesion anchor varnish layer 16 which is not pressed and peeled off with an adhesive tape.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention conceals confidential information data such as "hit" and "miss" like a lottery ticket or a game card with a peelable concealment layer, and peels off the peelable concealment layer at the time of use. The present invention relates to a printed matter with a peelable concealing layer for recognizing confidential information data.

[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. 5, 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 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). There is a layered printed matter (2), and a customer who purchases this scratch concealed layer printed matter (2) scratches off (scratches) the scratch concealment layer (20) with a coin, a nail or the like, and hits, Etc. "
Or confidential information data (1
2) can be visually recognized.

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

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 is a problem or the substrate (10) is expensive, and it is difficult to print or process it (production efficiency deteriorates), and we use thick paper to solve this problem that can be seen through. It was

[0006] In any of the above-mentioned measures to prevent the shadow of the confidential information data (12) from being seen through even when exposed to such strong light, materials 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.

Further, the outermost scratch hiding layer (20)
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,
It is inevitable that the scratch concealing layer (2) is completely covered with printing ink.
The printed matter (2) with a scratch concealing layer had a problem that it did not have a degree of freedom in design of 0) and did not look good in terms of design.

Furthermore, in forming the scratch-shielding layer (20) on the outermost surface, as the ink, for example, 15 to 25 parts by weight of aluminum powder, 15 to 25 parts by weight of a color pigment including an extender pigment such as alumina white, cohesive failure. 15-25 parts by weight of synthetic rubber resin such as SBR or NBR having (nodule) property,
Furthermore, 35 to 45 parts by weight of an aromatic hydrocarbon solvent such as toluene, xylene, and methyl isobutyl ketone and 5 to 15 parts by weight of an auxiliary agent such as an antifoaming agent are added to these, and thus the cohesive failure (nodularity) property is obtained. Rubber type with a fluffy texture
Since it is necessary to thicken the ink with a thickness of about 4 to 10 μm, it must be performed by screen printing, etc. Therefore, the image does not have sharpness, it cannot be sharpened even if scratched, and it is a slow-drying screen. Since the line speed of the scratch ink for printing is low, the leveling of the ink progresses between the printing of the scratch masking layer (20) and the drying of the scratch masking layer (20), resulting in the unevenness of the confidential information data (12) on the surface of the scratch masking layer (20). Since it appears, there is a problem that it is not confidential, and since it is slow drying, it is inferior in productivity, and it is particularly unsuitable for inline processing with an offset printing machine that prints other images, so it has to be formed on a separate line. I didn't get it. Furthermore, the scratch concealing layer (20) made of the rubber-based ink may be peeled off due to rubbing during handling during transportation, storage, and the like, and there is a problem that the reliability in terms of security is lacking.

[0009]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art. The object of the present invention is that even if strong light is applied, the shadow of the confidential information data will appear from the opposite side. It is invisible, so there is no freedom in designing the back side by applying a watermark prevention layer as in the past, there is no problem of not looking good, or using thick paper that is expensive and difficult to print or process. There is no problem of increased manufacturing cost, the image of the outermost concealing layer is sharp, and inline processing with an offset printing machine is possible to form the concealing layer, and the degree of freedom in designing the concealing layer is high. Another object of the present invention is to provide a peelable concealing layer-attached printed matter which is composed of a concealing layer which has a good appearance and which is resistant to rubbing during transportation.

[0010]

In order to achieve the above object in the present invention, first, in the invention of claim 1, a plastic sheet or a plastic surface of a base material having a plastic coating layer on at least one surface thereof is provided. A colorless high-adhesion anchor varnish layer consisting of an image of confidential information data is applied, and a peeling concealing concealing layer that is dark and entirely solid is applied to cover the high-adhesion anchor varnish layer and its surroundings. A printed matter with a peelable masking layer, wherein the confidential information data is formed by a peelable masking layer on a highly adhesive anchor varnish layer that is not adhesively peeled by an adhesive tape, It was done.

According to the first aspect of the present invention, the plastic surface is provided with the highly adhesive anchor varnish layer having high adhesiveness and the peelable concealing layer having low adhesiveness.
When peeling of the peelable concealing layer is performed with an adhesive tape, the peelable concealing layer other than on the high-adhesion anchor varnish layer is easily peeled off and is not peeled off with the adhesive tape. The peelable concealing layer that is solid over the entire surface is used as an image of confidential information data, and there is no difference between this image and the peelable concealing layer in other parts (surroundings). Is a printed matter with a peelable concealment layer that is difficult to see as confidential information data even when it is watermarked with strong light, and as a result, there is no need to apply a watermark prevention layer on the back surface unlike the conventional printed matter with a scratch concealment layer. Therefore, the degree of freedom in designing the back surface is increased, and since the base material does not require thick paper or the like, the manufacturing cost can be reduced.

According to the second aspect of the present invention, a colorless high adhesion anchor varnish layer which is an image of confidential information data is provided on the plastic surface of a plastic sheet or a substrate having a plastic coating layer on at least one surface. A printed matter with a peelable concealing layer, which is provided with a dark-colored regular or irregular line drawing pattern-like peelable concealing layer so as to cover the high-adhesion anchor varnish layer and its surroundings, wherein the confidential information data Is a peelable concealing layer-provided printed product, which is formed of a peelable concealing layer on a high-adhesion anchor varnish layer that is not adhesively peeled by an adhesive tape.

According to the second aspect of the present invention, similarly to the first aspect of the present invention, there is a difference between the portion which becomes the confidential information data and the peelable concealing concealing layer which is dark in the other portion (surrounding). Therefore, before peeling during use, even if it is exposed to strong light and watermarked, it becomes a peelable concealment layer printed matter that is difficult to see as confidential information data, and as a result, like a conventional scratch concealment layer printed matter. Since it is not necessary to apply a watermark prevention layer on the back surface, the degree of freedom in designing the back surface is increased, and since the base material does not require thick paper or the like, the manufacturing cost can be reduced. Further, by forming the dark-colored peelable concealing layer with, for example, regular lines or halftone dots or irregular ground pattern, fine pattern, or line drawing pattern such as line drawing pattern, the outermost surface is peeled off. It is possible to provide a printed material with a peelable masking layer, which gives a designing degree of freedom of the property masking layer and is visually attractive.

According to the invention of claim 3, the plastic is a polypropylene resin, and the peelable concealing layer-provided printed material according to claim 1 or 2, is provided.

According to the third aspect of the present invention, by using a polypropylene resin as the plastic, the adhesiveness of the peelable concealing layer between the polypropylene surface and the highly adhesive anchor varnish layer surface, that is, the adhesive strength (also referred to as peel strength). )
In this case, the peelable concealing layer can be peeled off more easily with an adhesive tape, and a sharp image as confidential information data can be obtained.

Further, in the invention of claim 4, the dark color peelable hiding layer is a styrene acrylic resin and /
Alternatively, the peelable masking layer-attached printed matter according to any one of claims 1 to 3, which is a printing ink containing a urethane-based resin as a binder or an ultraviolet-curing offset printing ink.

According to the fourth aspect of the present invention, the dark color peelable concealing layer is formed by a printing ink using a styrene acrylic resin and / or a urethane resin as a binder or an ultraviolet curable offset printing ink. As a result, there is a large difference in the adhesiveness between the plastic surface and the high-adhesion anchor varnish layer with respect to the peelable concealment layer, and as a result, the adhesiveness to the high-adhesion anchor varnish layer is further improved. When peeled off, it will be easily peeled off on the plastic surface, but will remain on the high-adhesion anchor varnish layer and will be recognized as sharp confidential information data. It can be a printed matter.

Further, the printing ink for the peelable hiding layer is
Compared with conventional slow-drying inks that use synthetic rubber resins such as SBR and NBR as binders, the inks dry quickly, so regular or irregular line drawing patterns such as lines, halftone dots, fine prints or line drawing patterns are leveled. It is possible to provide a printed matter with a peelable concealing layer that does not flow and is therefore excellent in sharpness and looks good in the design of the peelable concealable layer on the outermost surface. Furthermore, since the printing ink for the peelable concealing layer is fast-drying, it forms a flat film without leveling, and the steps of the high-adhesion anchor varnish layer are not visible as confidential information data on the surface, and during transportation, etc. By changing the conventional screen printing method to a lithographic printing plate with high production efficiency, a printed material with a peelable concealing layer that is reliable and has no fear that confidential information data will be visually rubbed by rubbing with The offset method, the gravure method, the roll coat method using a resin relief plate, the flexo method, and the like can be applied, and a printed matter with a peelable concealing layer that can be in-line in an offset printing machine can be obtained.

The term "solid surface solid" 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 white portions.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. In the invention according to claim 1,
As shown in the side sectional view of FIG. 1 (a), for example, paper is used as a base material (10), and a polypropylene film layer (1
8) is applied, and its polypropylene film layer (1
A colorless high-adhesion anchor varnish layer (16) which is a pattern of confidential information data is applied to the surface 8), and covers the high-adhesion anchor varnish layer (16) and the polypropylene film layer (18) around it. As described above, the peelable masking layer-provided printed matter (1) is provided with the dark-colored and solid peelable masking layer (22).

In the above-mentioned present invention, for example, when the peelable masking layer (22) of the printed matter (1) with the peelable masking layer is pressed and peeled by an adhesive tape, the peelable masking layer (22) on the polypropylene film layer (18). ) Is peeled off, and 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, the high adhesion anchor varnish layer (16) is not peeled off. The releasable masking layer (22) remaining on the top is
The peelable concealing layer-provided printed matter (1) is formed by forming the letter "O", and the letter "T, O" becomes the confidential information data (12).

As described above, the highly adhesive anchor varnish layer (1
6) and a peelable masking layer (22) with respect to the adhesiveness (adhesive strength) of the peelable masking layer (22) to the polypropylene film layer (18). As shown in, for example, a polypropylene film layer (1
8) A peelable concealing layer of a printed matter (1) with a peelable concealing layer, which is provided with a pattern of a highly adhesive anchor varnish layer (16) on which a peelable concealing layer (22) is provided on and around it. (2
2) When the cellophane tape (30) is pressed and adhered onto it,
Explaining the adhesiveness at this time, that is, the adhesive strength (also referred to as peel strength), the adhesive strength of the peelable masking layer (22) to the polypropylene film layer (18) and the peelable masking layer (22).
The latter is larger in the adhesive strength of the cellophane tape (30) with respect to the above, and the polypropylene film layer (18) with respect to the high adhesion anchor varnish layer (16) and the peelable hiding layer (22 with respect to the high adhesion anchor varnish layer (16). 2) and the adhesive strength of the cellophane tape (30) to the peelable hiding layer (22), the latter is the smallest.
As a result, when the cellophane tape (30) was pulled up, as shown in FIGS. 1 (b) and 1 (c), the peelable concealing layer (22) remained on the high-adhesion anchor varnish layer (16) without being peeled off. ) Forms the letter "T, O" and this "T, O"
The peelable concealing layer-attached printed matter (1) in which the letter “O” becomes confidential information data (12) can be obtained.

The polypropylene film layer (18) is used, for example, for the cover of a magazine, and paper is used as the base material (1).
0), normal offset printing is applied to it, and the thickness is set to 2 in order to protect the printing surface and impart gloss.
A polypropylene film having a thickness of about 0 μm may be laminated through an adhesive, or a film obtained by extrusion coating of a polypropylene resin with an extruder may be used. Instead of the paper base material (10) provided with the polypropylene film layer (18), a polypropylene sheet can be preferably used especially for scratch cards and the like.

Further, the high-adhesion anchor varnish layer (1
As 6), for example, 5 to 25% by weight of an extender pigment, 20
Photopolymerization of 10 to 20% by weight of benzophenone, dimethylamine benzophenone, etc. as an additive in the vehicle of UV curable offset sheet-fed ink consisting of -60% by weight of photosensitive resin and 5 to 40% by weight of photosensitive monomer. A colorless UV-curable offset anchor varnish composed of an initiator and additives such as a thermal polymerization inhibitor such as hydroquinone, and more specifically, a trade name: FD
OM underprinting varnish 10 (manufactured by Toyo Ink Mfg. Co., Ltd.) is a suitable anchor ink (varnish) and can be formed by an offset printing method.

This anchor ink (varnish) has excellent adhesiveness to the polypropylene film layer (18) and also serves as an anchor agent for the peelable concealing layer (22) and has excellent adhesiveness to it. is there.

As shown in FIG. 1A, in the printed matter (1) with a peel-off concealing layer having the above-mentioned structure, as shown in FIG. 1 (a), a highly adhesive anchor varnish layer (16) which becomes confidential information data by pressure peeling of cellophane tape or the like. A high adhesion anchor varnish layer (16) in which the dark colored peelable masking layer (22) and the dark colored peelable masking layer (22) on the polypropylene film layer (18) are the same and serve as confidential information data. ) Is colorless, so there is no difference from other parts (the surrounding polypropylene film layer (18)), so before peeling it is difficult to see as confidential information data (12) even if it is exposed to strong light and watermarked. It can be a printed matter (1) with a hiding layer. Further, unlike the conventional printed material (2) with a scratch concealing layer shown in FIG. 6, it is not necessary to apply the watermark prevention layer (24) on the back surface, so that it has the merit of increasing the amount of information such as the design of the back surface and the degree of freedom. Can be

Further, in the invention according to the above-mentioned claim 2, FIG.
As shown in the side cross-sectional view of (a), the peelable masking layer formed as a solid surface in the invention according to claim 1 is used as a peelable masking layer (22a) having a regular linear pattern, for example. To do. When the releasable masking layer-provided printed matter (1) having the releasable masking layer (22a) having such a regular line-like pattern is peeled off by pressing with a cellophane tape or the like, FIG.
As shown in the side cross-sectional view of (b), a peelable concealing layer (2) having a linear pattern on the polypropylene film layer (18).
2a) is peeled off, and the peelable concealing layer (22a) having a linear pattern on the high adhesion anchor varnish layer (16) is
Confidential information data consisting of regular lines (12
It becomes visible as a). As described above, the peelable masking layer (22a) having a regular linear pattern before and after pressure peeling is used, whereby the peelable masking layer (22a) having a regular linear pattern on the outermost surface (22a) is formed. ) Or confidential information data (12a), a printed matter (1) with a peelable concealing layer that looks good in design can be used.

In the above example, the dark peelable masking layer has a regular line-shaped pattern, but other regular line drawing patterns are, for example, halftone dots, lattices, diagonal lattices, etc. The irregular line drawing pattern may be, for example, a tint block, a fine pattern, or a peelable concealing layer (22b) having a camouflage pattern as shown in FIG. Examples include a pattern and a pattern composed of coarse (60 lines / inch or less) halftone dots, which can be appropriately selected as a peeling concealing layer that looks attractive in design by these line drawing patterns.

In the invention according to the fourth aspect, for example, a styrene acrylic resin and / or a urethane resin is used as a binder in forming the dark color peelable concealing layer (22) shown in FIG. 1 (a). A printed matter (1) with a peelable concealing layer is prepared using a printing ink.

The composition of the printing ink for forming the peelable concealing layer (22) is, for example, a dark color, and an aluminum paste (aluminum fine powder is surface-treated with fatty acid or the like for imparting a certain degree of concealing property and releasability). , 20 to 45 parts by weight of a coloring pigment, and a polyurethane synthetic resin or a styrene / acrylic copolymer resin as a binder,
Alternatively, 25 to 50 parts by weight of a mixture of polyurethane synthetic resin and styrene / acrylic copolymer resin, auxiliary agent 1 such as defoaming agent
10 to 35 parts by weight of water and 10 to 35 parts by weight of water and less than 5 parts by weight of a lower alcohol such as isopropyl alcohol are dispersed, and the above high adhesion anchor varnish layer (1
6) A printing ink for peeling, which has adhesion (adhesiveness) to 6) and quick-drying that enables high efficiency of work, and can be used as the peeling concealing layer (22) or line-shaped pattern. A gravure method, a roll coating method using a resin relief plate, a flexographic printing method, or the like, which has high production efficiency, is applied to the formation of the peelable concealing layer (22a) and the like.

Further, the conventional printing ink for scratch using a synthetic rubber resin such as SBR or NBR as a binder uses toluene, xylene or the like as a solvent, and the Fire Defense Law and the organic solvent poisoning prevention regulations (Labor Safety and Health Law). ), It was not suitable for in-line application in an offset printing machine because of a large cost load from the viewpoint of compliance with), but the styrene acrylic resin and // Or, a printing ink for peeling, which uses urethane resin as a binder and is dispersed in water and a small amount of isopropyl alcohol to make an emulsion, can be used inline on an offset printing machine in terms of compliance with the Fire Service Act and the Organic Law. It is a suitable one.

Further, when a slow-drying printing ink for scratches using a conventional synthetic rubber resin such as SBR or NBR as a binder is used as a substitute for the peelable masking layer constituting the printed matter with the peelable masking layer of the present invention, For example, as shown in the schematic view showing the side cross section of FIG. 7, this scratch printing ink dries slowly because it dries slowly.
The portion of the high adhesion anchor varnish layer (16) which becomes the pattern of the confidential information data appears as a convex portion (20c) on the surface of the scratch concealing layer (20), which is recognized as the confidential information data. Therefore, the printing ink for peeling according to the present invention solves the problem, and as shown in FIG. 1 (a), the peelable hiding layer (22) has a surface It is formed as a flat surface, which is preferable in terms of security.

Furthermore, in the invention according to claim 4, for example, the dark-colored peelable concealing layer (2 shown in FIG. 1A is used.
A UV-curable offset printing ink may be used in the formation of 2) to obtain a peelable hiding layer-attached printed matter (1).

The UV-curable offset printing ink for forming the peelable concealing layer (22) is, for example, a colored pigment having a dark color and mainly containing carbon black for imparting the concealing property (disazo yellow such as yellow). It is not preferable to use only pigments) 25%, and is composed of acrylic acid ester of polyol, polyester and epoxy.
Approximately 70% of a photopolymerizable material, a ketone resin, an alkyd resin, etc. as a vehicle, and a modifying resin of 10% to 35%, and benzophenone and dimethylaminobenzophenone as an additive to them, a photopolymerization of 5% to 10%. Initiator,
It is made of polyethylene or Teflon (trademark of DuPont) and other waxes of about 2 to 6% which gives the cured film slipperiness and peelability, and is used as a general dark-color UV-curable offset printing ink. It is also possible to use the existing one.

The dark-colored UV-curable offset printing ink is more excellent than the printing ink using the styrene-acrylic resin and / or the urethane resin as a binder in terms of production efficiency and compliance with the Fire Service Law and regulations. It has an advantageous and excellent effect.

When the confidential information data is to be visually recognized by scratching off (scraping) the conventional peelable concealing layer (22) shown in FIG. 1 (a) with a coin or the like as in the conventional case, a high adhesion anchor varnish is obtained. The peelable concealing layer (22) on the layer (16) may be scraped off and may not be sharp confidential information data or may not be visually recognized as confidential information data. When using, the confidential information data is peeled off with an adhesive tape such as cellophane tape for visual recognition.

[0037]

Since the present invention has the above-mentioned constitution, it has the following effects. That is, in the invention according to claim 1, a colorless high-adhesion anchor varnish layer consisting of an image of confidential information data is provided on the plastic surface of a plastic sheet or a substrate having a plastic coating layer on at least one surface. A printed matter with a peelable concealing layer, which is covered with a dark and entirely solid releasable concealing layer so as to cover the high-adhesive anchor varnish layer and its surroundings, wherein the confidential information data is an adhesive tape. A printed matter with a peelable concealing layer formed of a peelable concealing layer on a high-adhesive anchor varnish layer that is not peeled by pressure. Since a peelable concealing layer having low adhesiveness is formed with the adhesive tape, the peelable concealing layer other than on the high-adhesive anchor varnish layer can be easily removed. It is peeled to,
The peelable concealment layer, which is a dark and solid surface on the colorless high-adhesion anchor varnish layer that is not peeled off by the adhesive tape, is used as an image of confidential information data. This image part and other parts (surroundings) There is no difference with the peelable concealment layer, so even before peeling during use, even if it is watermarked with strong light, it becomes a printed matter with a peelable concealment layer that is difficult to see as confidential information data, and as a result, conventional scratches. Unlike the printed matter with the concealing layer, it is not necessary to apply a watermark prevention layer on the back surface, so the degree of freedom in designing the back surface is increased, and the fact that thick paper is not required for the base material also has the effect of reducing manufacturing costs. .

Further, in the invention according to claim 2, the peelable masking layer made of the whole solid is a peelable masking layer having a regular or irregular line drawing pattern. Similar to the invention, there is no difference between the part that becomes confidential information data and the dark peelable concealing layer in other parts (surroundings). Therefore, before peeling when using, give a strong light and try watermarking. Also becomes a printed matter with a peelable concealment layer that is difficult to see as confidential information data, and as a result, there is no need to apply a watermark prevention layer on the back side unlike the conventional printed matter with a scratch concealment layer, increasing the freedom of design on the back side. In addition, the fact that thick paper or the like is not required for the base material is also effective in reducing the manufacturing cost. Further, by forming a dark color peelable concealing layer with, for example, regular lines or halftone dots or irregular ground pattern, fine pattern, or line drawing pattern such as line drawing pattern, the peeling property of the outermost surface can be improved. It is possible to provide a printed material with a peelable concealing layer, which gives a degree of freedom to the design of the concealing layer and looks good in design.

Further, in the invention according to claim 3, by using polypropylene resin as the plastic, the adhesiveness (adhesion strength (release) of the peelable concealment layer between the polypropylene surface and the highly adhesive anchor varnish layer surface). (Also referred to as strength), a larger difference can be made, and in this use, the peelable concealing layer can be peeled off more easily with an adhesive tape, and a sharp image as confidential information data can be obtained.

Further, in the invention according to claim 4, the dark color peelable concealing layer is a printing ink using a styrene acrylic resin and / or a urethane resin as a binder or an ultraviolet curable offset printing ink. By forming it, there is a large difference in the adhesiveness between the plastic surface and the high-adhesion anchor varnish layer with respect to the peelable concealment layer, and as a result, the adhesiveness to the high-adhesion anchor varnish layer is further improved, and the adhesiveness during use is increased. When peeled off with tape, it is easily peeled off on the plastic surface, but remains on the high-adhesion anchor varnish layer without being peeled off, and the remaining portion is recognized as sharp confidential information data. .

The printing ink for the above-mentioned peelable hiding layer is
Compared with the slow-drying ink that uses conventional synthetic rubber resin such as SBR and NBR as a binder, it is quick-drying so that it can be used for leveling regular or irregular line drawing patterns such as lines, halftone dots, fine prints or line drawing patterns. It is possible to provide a printed matter with a peelable concealing layer that does not flow and is therefore excellent in sharpness and looks good in the design of the peelable concealable layer on the outermost surface. Furthermore, since the printing ink for the peelable concealing layer is fast-drying, it forms a flat film without leveling, and the steps of the highly adhesive anchor varnish layer are not visible on the surface as confidential information data, and during transportation. By using a printable product with a reliable peelable concealing layer that does not pose a danger that confidential information data will be visually recognized by rubbing with, and by using the ink having the above composition,
In place of the conventional screen printing method, lithographic offset method with high production efficiency, gravure method, roll coat method using resin letterpress or flexo method can be applied, enabling in-line application on offset printing machine It can be a printed matter with a peelable hiding layer.

Therefore, the present invention exerts an excellent practical effect as a printed product with a peelable concealing layer in which confidential information data is concealed by the peelable concealing layer such as an instant lottery ticket and a game card.

[Brief description of drawings]

FIG. 1 illustrates an embodiment of a printed material with a peelable hiding layer of the present invention, in which (a) is a side sectional view thereof,
(B) is a plan view after peeling, (c) is (b)
3 is a cross-sectional view taken along the line BB of FIG.

FIG. 2 is an explanatory view showing a side cross section of an example of use of the printed material with a peelable hiding layer of the present invention.

FIG. 3 is a view for explaining another embodiment of the printed material with a peelable concealing layer of the present invention, (a) is a side sectional view thereof, and (b) is a peeled side sectional view. is there.

FIG. 4 is an explanatory view showing an example of a peelable masking layer constituting a printed material with a peelable masking layer of the present invention in a plane.

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

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

FIG. 7 is a side sectional view showing an example of a case where a conventional ink for a scratch masking layer is used in a printed material with a peelable masking layer according to the present invention.

[Explanation of symbols]

1 ... Printed material with peelable concealing layer 2 Printed matter with scratch masking layer 10 ... Base material 12 ... Confidential information data 12a ... Confidential information data consisting of a line pattern 14 ... Easy peeling layer 16: High adhesion anchor varnish layer 18 Polypropylene film layer 20 Scratch concealment layer 20c ... The convex portion of the scratch masking layer 22 ... Releasable concealing layer made entirely solid 22a ... Releasable concealment layer having a line-shaped pattern 22b ... A peelable concealing layer having a camouflage pattern 24 Watermark prevention layer 30 ... cellophane tape

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2C005 HA01 HB12 JA09 JB22 KA01                       KA11                 2H113 AA01 AA03 AA04 AA06 BA05                       BB07 BB22 BC10 DA41 DA47                       DA53 DA62 FA43

Claims (4)

[Claims] 1. A colorless high-adhesion anchor varnish layer, which is an image of confidential information data, is applied to the plastic surface of a plastic sheet or a base material having a plastic coating layer on at least one side, and the high-adhesion anchor varnish is provided. A printed matter with a peelable concealing layer, which is provided with a peelable concealing layer which is dark and covers the entire surface so as to cover the layer and its surroundings, wherein the confidential information data is a high adhesion anchor that is not peeled off by an adhesive tape. A printed matter with a peelable masking layer, which is formed of a peelable masking layer on a varnish layer. 2. A colorless high-adhesion anchor varnish layer, which is an image of confidential information data, is applied to the plastic surface of a plastic sheet or a base material having a plastic coating layer on at least one side, and the high-adhesion anchor varnish is provided. A printed matter with a peelable concealing layer, which is provided with a releasable concealing layer having a dark or regular or irregular line drawing pattern so as to cover the layer and its surroundings, wherein the confidential information data is adhesively peeled with an adhesive tape. A printed matter with a peelable masking layer, which is formed of a peelable masking layer on a high-adhesion anchor varnish layer which is not formed. 3. The printed material with a peelable concealing layer according to claim 1, wherein the plastic is a polypropylene resin. 4. The dark color peelable hiding layer is made of a printing ink or a UV-curable offset printing ink using a styrene acrylic resin and / or a urethane resin as a binder. The printed matter with a peelable hiding layer according to any one of 3 above.