JP2007152907A - Printed material with scratch covering layer, production method thereof and covering method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a printed material with a scratch covering layer capable of preventing classified information from being read improperly and being produced simply and efficiently. <P>SOLUTION: The printed material with a scratch covering layer S is provided which is formed by a substrate 1, a classified information layer 2, a protection layer 3 and a covering layer 4, wherein colors of the classified information layer 2 and the covering layer 4 have the same color, whereby the problem described above is solved. The same color is preferably such a color that can be visually identified as the same color under environment light. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a printed matter with a scratch concealment layer having a concealing property, which can be easily and efficiently produced.

  Conventionally, in a printed matter with a scratch concealment layer, such as a scratch lot, the information (confidential information) such as a pattern, characters, numbers, etc. corresponding to “win”, “off”, etc. is concealed. A concealing layer having a high concealing property is formed. As a specific structure, a confidential information layer that needs to be concealed is formed on a printing paper or the like, and a concealing layer made of silver ink or the like is formed so as to cover the confidential information layer.

  The printed matter with the scratch concealment layer formed by such a structure can know the contents of the confidential information layer by scratching and removing the concealment layer with coins or nails. Widely used as one.

  However, there has been a problem that the contents of the confidential information layer can be illegally read by a method such as applying strong light from the back side of the printing paper with the scratch concealment layer printed matter.

  Therefore, various printed materials with a scratch concealment layer have been proposed at present in order to prevent unauthorized reading of confidential information.

For example, Patent Document 1 discloses a technique for preventing unauthorized reading of confidential information by attaching a black ink coat layer or a plastic film provided with a white ink coat layer on a printing paper with a scratch concealment layer. Is disclosed.
JP 2000-6567 A

  However, although the printed matter with the scratch concealment layer described in Patent Document 1 can prevent confidential information from being read illegally, it has a complicated process of sticking a plastic film on printing paper, and the cost is accordingly increased. There was a problem that it took a lot.

  The present invention has been made in view of such problems, and is a printed matter with a scratch concealment layer that can prevent confidential information from being illegally read, and has a scratch concealment layer that can be easily and efficiently produced. The purpose is to provide printed materials.

  The invention according to claim 1 for solving the above-described problem is a printed matter with a scratch concealment layer formed of a base material, a confidential information layer, a protective layer, and a concealing layer. The color and the color of the concealing layer are the same color.

  According to this, the color and concealment of the confidential information layer of the printed matter with the scratch concealment layer even when strong light is applied to the substrate of the printed matter with the concealment concealment layer from the side having the concealment layer or the side not having the concealment layer. By making the color of the layer the same color, the color of the confidential information layer and the color of the concealment layer overlap, so that the confidential information is not seen through from the concealment layer side or the substrate side, and the confidential information is illegally It can be prevented from being read.

  In addition, it is possible to use ordinary color ink as a concealing layer without using a specific ink having a high concealment ratio such as black ink or silver ink that has been used for concealing a confidential information layer. Therefore, it is not necessary to perform special printing such as silk screen printing with silver ink, and it is not necessary to put in complicated processes such as filming, so it is possible to produce a printed material with a scratch concealment layer at low cost and efficiency. can do.

  Further, as described above, by forming a concealing layer using a normal color ink, a pattern or the like can be imparted to the surface (concealing layer) of the printed matter with the scratch concealing layer, and the scratch concealing layer having a high design property. A printed matter can be produced.

  The invention according to claim 2 for solving the above problem is that in the printed matter with a scratch concealment layer according to claim 1, the same color is a color that can be visually judged under ambient light. It is characterized by.

  According to this, even if the colors of the confidential information layer and the concealing layer are not physically the same, the concealing layer is formed on the base material by making the color (similar) that can be determined to be the same color by visual observation under ambient light. Even when strong light is applied from the side with or without the concealment layer, the color of the confidential information layer overlaps with the color of the concealment layer so that the confidential information can be seen through the concealment layer side or the substrate side. It is possible to prevent unauthorized reading of confidential information.

  The invention according to claim 3 for solving the above problem is that, in the printed matter with a scratch concealment layer according to claim 1 or 2, when the concealment layer is formed of a plurality of layers, the concealment is performed. The color of at least one layer forming the layer and the color of the confidential information layer are the same color.

  According to this, the color and concealment of the confidential information layer of the printed matter with the scratch concealment layer even when strong light is applied to the substrate of the printed matter with the concealment concealment layer from the side having the concealment layer or the side not having the concealment layer. By making the color of at least one layer of the layers forming the same color, the color of the confidential information layer and the color of the concealment layer overlap, and the confidential information can be seen through from the concealment layer side or the substrate side. Therefore, it is possible to prevent unauthorized reading of confidential information.

  Furthermore, by forming a layer other than the layer having the same color as the color of the confidential information layer among the plurality of layers forming the concealing layer, the pattern is formed on the surface of the printed material with the scratch concealing layer. Etc. and a printed matter with a scratch concealing layer having a high design property can be produced.

  The invention according to claim 4 for solving the above problem is the printed matter with a scratch concealment layer according to claim 3, wherein, among the concealment layers, the color of the concealment layer adjacent to the confidential information layer, and The color of the confidential information layer is the same color.

  According to this, the color and concealment of the confidential information layer of the printed matter with the scratch concealment layer even when strong light is applied to the substrate of the printed matter with the concealment concealment layer from the side having the concealment layer or the side not having the concealment layer. By making the color of the concealment layer adjacent to the confidential information layer the same color, the color of the confidential information layer and the color of the concealment layer overlap so that the confidential information is transparent from the concealment layer side and the substrate side. It is possible to prevent unauthorized reading of confidential information.

  Further, among the plurality of layers forming the concealment layer, a plurality of layers above the layer adjacent to the confidential information layer are also formed with normal color ink, so that the layer above the layer adjacent to the confidential information layer is formed. The design can be applied to the entire layers. As a result, the entire plurality of layers above the layer adjacent to the confidential information layer can be designed. For example, a layer having the same color as the confidential information layer in the concealment layer is adjacent to the confidential information layer. A printed matter with a scratch concealment layer can be produced more easily and at a lower cost than the case of forming other than the above. Furthermore, the degree of freedom in designing a plurality of layers above the layer adjacent to the confidential information layer is increased, and the design can be improved.

  The invention according to claim 5 for solving the above-mentioned problem is that a confidential information layer is formed on a base material, a protective layer is formed on the confidential information layer, and the confidential information layer is formed on the protective layer. A hiding layer having the same color as the color is formed.

  According to this, the color and concealment of the confidential information layer of the printed matter with the scratch concealment layer even when strong light is applied to the substrate of the printed matter with the concealment concealment layer from the side having the concealment layer or the side not having the concealment layer. By making the color of the layer the same color, the color of the confidential information layer and the color of the concealment layer overlap, so that the confidential information is not seen through from the concealment layer side or the substrate side, and the confidential information is illegally It can be prevented from being read.

  The invention according to claim 6 for solving the above-mentioned problem is that a protective layer is formed on the confidential information layer formed on the substrate, and the same color as the color of the confidential information layer is formed on the protective layer. A concealing layer is formed.

  According to this, the color and concealment of the confidential information layer of the printed matter with the scratch concealment layer even when strong light is applied to the substrate of the printed matter with the concealment concealment layer from the side having the concealment layer or the side not having the concealment layer. By making the color of the layer the same color, the color of the confidential information layer and the color of the concealment layer overlap, so that the confidential information is not seen through from the concealment layer side or the substrate side, and the confidential information is illegally It can be prevented from being read.

  According to the present invention, the color of the confidential information layer of the printed matter with the scratch concealment layer can be obtained even when strong light is applied to the substrate of the printed matter with the concealment layer from the side having the concealment layer or the side having no concealment layer. By making the color of the concealment layer the same color, the color of the confidential information layer and the color of the concealment layer overlap so that the confidential information is not seen through from the concealment layer side or the substrate side, and the confidential information is illegal. Can be prevented from being read.

  In addition, it is possible to use ordinary color ink as a concealing layer without using a specific ink having a high concealment ratio such as black ink or silver ink that has been used for concealing a confidential information layer. Therefore, it is not necessary to perform special printing such as silk screen printing with silver ink, and it is not necessary to put in complicated processes such as filming, so it is possible to produce a printed material with a scratch concealment layer at low cost and efficiency. can do.

  Further, as described above, by forming a concealing layer using a normal color ink, a pattern or the like can be imparted to the surface (concealing layer) of the printed matter with the scratch concealing layer, and the scratch concealing layer having a high design property. A printed matter can be produced.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1 is a schematic cross-sectional view showing a printed matter with a scratch concealing layer according to the first embodiment of the present invention.

  As shown in FIG. 1, the printed matter S with a scratch concealing layer of the present invention includes a base material 1, a confidential information layer 2, a protective layer 3, and a concealing layer 5 as essential components. In addition, although it is not an essential component between the protective layer 3 and the concealing layer 5, it is preferable that the peeling layer 4 is formed.

  Here, the printed matter S with a scratch concealment layer having such a layer structure is characterized in that the color of the confidential information layer and the color of the concealment layer are the same color. Hereinafter, the layer structure of the printed material S with the scratch concealment layer will be described in detail.

(1) Layer structure First, the substrate 1 will be described.

  The base material 1 becomes a base material when the printed material S with a scratch concealment layer is produced, and each layer described later is formed thereon.

  Examples of the material of the substrate 1 include high-quality paper, medium-quality paper, coated paper, synthetic paper, impregnated paper, laminated paper, metallized paper, printing coated paper, recording coated paper, polyethylene terephthalate film, A plastic film such as a polyethylene film, a polypropylene film, or a polycarbonate film, a metal foil, or a composite thereof is used, and may be appropriately selected depending on the application.

  Although the thickness of the base material 1 changes with uses, about 0.03 mm-1 mm are preferable, for example.

  Next, the confidential information layer 2 formed on the substrate 1 will be described.

  The confidential information layer 2 is a layer on which information to be concealed such as arbitrary patterns such as arbitrary letters, numbers, symbols, alphabets, etc. is printed. For example, in the case of a scratch lot, “winning” or “out of” This is the layer on which the winning information is printed.

  The material for forming the confidential information layer 2 may be configured, for example, by adding some colorant to a resin serving as a binder. As the binder resin, for example, a polyester resin, a urethane resin, an epoxy resin, a melamine resin, an alkyd resin, a phenol resin, an acrylic resin, or the like can be used. As the colorant, a known colorant such as titanium oxide, zinc white, carbon black, iron oxide, iron yellow, ultramarine blue, metallic pigment, pearl pigment and the like can be used.

  The confidential information layer 2 is formed (printed) using an ink in which the above-described binder resin and colorant are dispersed and mixed. The solvent of this ink is not particularly limited, and a conventionally known solvent such as water or alcohol can be used. Further, the mixing ratio of the binder resin, the colored layer, the ink solvent, and the like is not particularly limited, and may be a mixing ratio at which the confidential information layer 2 can be appropriately formed (printed). In addition to these basic components, other additives can be added to the ink for the confidential information layer 2. In addition to the ink described above, toner (colored powder), an ink ribbon, or the like can be used depending on the printing method described later.

  The formation method (printing method) of the confidential information layer 2 is not particularly limited, and examples thereof include a thermal ribbon transfer method using a thermal head, an ink jet method, a toner transfer method using a laser, or a dot impact method. The thickness of the confidential information layer 2 varies depending on the application.

  Next, the protective layer 3 formed on the confidential information layer 2 will be described.

  The protective layer 3 is formed to cover the confidential information layer 2 and protects the confidential information layer 2 so that the confidential information layer 2 does not peel off when the concealing layer 5 is scraped off.

  Materials for forming the protective layer 3 are phenol resin, xylene resin, urea resin, melamine resin, ketone resin, alkyd resin, polyamide resin, acrylic resin, polyvinyl chloride resin, vinyl chloride / vinyl acetate copolymer resin, polyvinyl acetate. Resin, polyvinyl alcohol resin, polyvinyl butyral resin, polystyrene resin, epoxy resin, polyurethane resin, or the like is used.

  The protective layer 3 is printed or applied using ink or OP varnish in which the ink composition containing the binder resin described above is dispersed and mixed. The solvent of this ink is not particularly limited, and a conventionally known solvent such as water or alcohol can be used. Further, the mixing ratio of the binder resin and the ink solvent is not particularly limited, and may be a mixing ratio at which the protective layer 3 can be appropriately formed. In addition to these basic components, other additives can be added to the ink for the protective layer 3.

  Although the formation method of the protective layer 3 is not specifically limited, For example, it is preferable to form by the printing method. Examples of the printing method include an offset printing method, a silk screen printing method, a gravure printing method, and a flexographic printing method. The thickness of the protective layer 3 varies depending on the application.

  Next, the peeling layer 4 formed on the protective layer 3 will be described. The release layer 4 is a layer for imparting peelability to the shielding layer 5 when the shielding layer 5 is scraped off.

  When the protective layer 3 has a function (peelability) necessary for peeling the concealing layer 5, the release layer 4 is not an essential component, but here, the release layer 4 is formed. Explain that it is.

  As a material for forming the release layer 4, for example, a release varnish obtained by adding 5% or less of silicon or wax (polyethylene wax or the like) as an additive to polyurethane / acrylic resin, polyamide resin, or nitrocellulose resin is used.

  Although it does not specifically limit as a formation method of the peeling layer 4, Screen printing, a gravure printing system, a flexographic printing method etc. are mentioned. The thickness of the release layer 4 varies depending on the application.

  Next, the hiding layer 5 formed on the peeling layer 4 will be described.

  The concealment layer 5 is a layer for concealing information indicated by the confidential information layer 2 and is a layer formed so as to cover the confidential information layer 2.

  The material for forming such a concealing layer 5 may be configured, for example, by adding some colorant to a resin serving as a binder. As the binder resin, for example, polyester resin, urethane resin, epoxy resin, melamine resin, alkyd resin, phenol resin, acrylic resin and the like are preferable. As the colorant, a known colorant such as titanium oxide, zinc white, carbon black, iron oxide, iron yellow, ultramarine blue, metallic pigment, pearl pigment and the like can be used.

  The masking layer 5 is printed or applied using an ink or a coating liquid in which the above-described binder resin and colorant are dispersed and mixed. The solvent of this ink or coating liquid is not particularly limited, and conventionally known solvents such as water and alcohol can be used. Further, the mixing ratio of the binder resin, the colored layer, the ink or the solvent of the coating liquid is not particularly limited, and may be a mixing ratio at which the concealing layer 5 can be appropriately formed. In addition to these basic components, other additives can be added to the ink or coating liquid for the hiding layer 5. In addition to the ink and coating liquid described above, toner (colored powder), an ink ribbon, and the like can be used depending on the printing method described later.

  The method for forming the masking layer 5 is not particularly limited, and examples thereof include gravure offset printing, silk screen printing, flexographic printing, and the like.

  Since the concealment layer 5 serves to conceal the confidential information layer 2, the position and size of the concealment layer 5 are such that the information of the confidential information layer 2 cannot be identified. There is a need. Specifically, the concealment layer 5 is preferably formed by solid coating on the entire surface of the base material 1 or a position where the confidential information layer 2 can be formed so as to cover the confidential information layer 2. However, since the confidentiality hiding layer 2 may be in a position and size that does not transmit when viewed from the front and rear surfaces of the printed matter with the scratch hiding layer, the shape of the hiding layer 5 is such that the confidential information layer 2 is covered. For example, the pattern may be a pattern such as a stripe pattern or a lattice pattern, a character, or a cartoon character or a celebrity portrait.

  The thickness of the masking layer 5 varies depending on the application.

(2) Color of confidential information layer and color of concealment layer Here, the present invention is characterized in that the color of the confidential information layer 2 and the color of the concealment layer 5 are the same color.

  The same color includes not only the case where the color of the confidential information layer and the color of the concealment layer are physically the same, but also the case where they are the same. The material of the confidential information layer 2 and the hiding layer 5 is as described above, and ink or toner containing a colorant and a binder resin is used.

(I) About the same color (i) By using the same ink and forming the confidential information layer 2 and the concealment layer 5 by the same formation method, the confidential information layer 2 and the concealment layer are physically the same color. 5 can be formed. The same applies when each layer is formed by the same printing method using the same toner.

  (Ii) By using the same colorant and using the ink added with the colorant at the same ratio with respect to the binder resin to form the confidential information layer 2 and the concealing layer 5, respectively, the physically same The confidential information layer 2 and the concealment layer 5 can be formed with colors. At this time, the forming method of the binder resin and each layer may be different.

  Thus, by making the colors of the confidential information layer 2 and the concealment layer 5 physically the same in the printed material S with the scratch concealment layer, the side having the concealment layer 5 on the substrate 1 or the side not having the concealment layer 5 Even when a strong light is applied from above, the color of the confidential information layer and the color of the concealment layer overlap, so that the confidential information is not seen through from the concealment layer side or the substrate side, and the confidential information is read illegally. Can be prevented.

(II) About the same degree of color (i) Confidential information layer using the same forming method using ink containing colorants (physically different) having the same or similar colors to each other and other components being the same 2 and the concealing layer 5 are formed, respectively, the confidential information layer 2 and the concealing layer 5 having the same color can be formed. The same applies when each layer is formed by the same printing method using toner having a similar color.

  (Ii) Using a colorant having the same or similar color (physically different) and forming the confidential information layer 2 and the concealing layer 5 with ink added with the colorant at the same ratio to the binder resin Therefore, the confidential information layer 2 and the concealment layer 5 having the same color can be formed. At this time, the forming method of the binder resin and each layer may be different.

  (Iii) If it can be determined that the colors are almost the same by visual observation (observation by human eyes) under ambient light, it can be said that the confidential information layer 2 and the concealment layer 5 having the same color are formed. .

  The ambient light refers to a state where the light is scattered throughout the space and gives appropriate brightness to the entire measurement chamber. More specifically, it refers to indirect light such as light reflected by an object in the measurement chamber where the illumination light in the measurement environment (measurement chamber) actually performs color measurement, and depending on the position of the printed material S with the scratch concealment layer, It may include direct light directly radiated from the illumination light onto the printed material S with the scratch concealment layer.

  (Iv) Even when the difference in color difference between the confidential information layer and the concealing layer is within 3 and it can be determined that the color is comparable, the confidential information layer 2 and the concealing layer 5 having the same color are formed. It can be said.

  Here, the 1976 CIELab space defined by the International Commission on Illumination (CIE) is used.

Specifically, using a spectrocolorimeter (not shown) conventionally used, and sensitive information layer 2, to measure the respective color signals of the masking layer ^{5 (L * a * b)} , using the value Thus, when the color difference (ΔE) between the confidential information layer 2 and the concealment layer 5 is derived and the difference between the color differences is within 3, the color difference is defined as the same in the present invention.

  The color difference is derived from the following formula 1.

このように、スクラッチ隠蔽層付印刷物Ｓにおける機密情報層２と隠蔽層５との色を同程度にすることにより、基材１に隠蔽層５を有する側又は隠蔽層５を有しない側から強力な光をあてた場合にも、機密情報層の色と隠蔽層の色とが重なって、機密情報が隠蔽層側や基材側より透けて見えることがなく、機密情報を不正に読取られることを防止できる。

Thus, by making the colors of the confidential information layer 2 and the concealment layer 5 in the printed material S with the scratch concealment layer the same level, the substrate 1 is strong from the side having the concealment layer 5 or the side not having the concealment layer 5. Even when exposed to light, the color of the confidential information layer and the color of the concealment layer overlap, so that the confidential information cannot be seen through from the concealment layer side or the substrate side, and the confidential information can be read illegally. Can be prevented.

(Second Embodiment)
2 to 4 are schematic cross-sectional views showing a printed matter S with a scratch concealing layer according to the second embodiment of the present invention. The printed material with the scratch concealment layer of the second embodiment has substantially the same configuration as that of the first embodiment, but the concealment layer 6 is formed of a plurality of layers (6a to 6d) as shown in FIGS. This is different from the printed matter with the scratch concealing layer of the first embodiment.

  As shown in FIG. 2, the printed material S with a scratch concealment layer of the second embodiment includes a base material 1, a confidential information layer 2, a protective layer 3, and a concealment layer 6 formed of a plurality of layers. It is provided as an essential configuration. In addition, as for the printed matter S with a scratch concealment layer, it is preferable that a release layer 4 is provided between the protective layer 3 and the concealment layer 6 as an arbitrarily provided layer.

Here, since the base material 1, the confidential information layer 2, the protective layer 3, and the release layer 4 are the same as those described in the first embodiment, they are different from the first embodiment below. The shielding layer 6 will be described. The material and forming method of the shielding layer 6 are the same as those of the shielding layer 5 of the first embodiment described above. The concealing layer 6 of the second embodiment is formed of a plurality of layers,
It is characterized in that at least one color of the layer forming the hiding layer 6 is the same color as the color of the confidential information layer 2. One layer of the concealment layer 6 having the same color as that of the confidential information layer 2 needs to be formed on the confidential information layer 2 so that the information of the confidential information layer 2 cannot be identified.

  Specifically, if at least one color of the layers (6a to 6d) forming the concealing layer 6 is the same color as the confidential information layer 2, the effect of the present invention is obtained. As such, the concealment layer 6b may be the same color as the confidential information layer 2. The concealing layers 6a, 6c and 6d other than the concealing layer 6b are used to play a role as a colored layer for applying a pattern, a pattern or the like in order to produce the printed material S with a scratch concealing layer having a high design property. .

  Thereby, unauthorized reading of confidential information due to light transmission or the like can be prevented, and a printed material with a scratch concealment layer having a high design property can be produced using a plurality of layers.

  Furthermore, in the concealment layer 6 of the second embodiment, at least one color of the layer forming the concealment layer 6 is the same color as the color of the confidential information layer 2. In particular, it is more preferable that the color of the concealment layer 6 a adjacent to the confidential information layer 2 in the concealment layer 6 is the same color as the color of the confidential information layer 2. Here, the proximity means the layer closest to the confidential information layer 2 in the concealment layer 5, specifically, the layer shown in 6a of FIG.

  Similarly to the above, the concealing layers 6b, 6c, 6d other than the concealing layer 6a serve as a colored layer for applying a design, a pattern or the like in order to produce a printed material S with a scratch concealing layer having a high design property. Will be used. Therefore, the three layers (the concealing layers 6b, 6c, 6d) on the concealing layer 6a can be formed by full-color printing as an ordinary colored layer or pattern layer, so that the effects of the present invention can be achieved in a simple process. A printed matter with a scratch concealing layer can be produced.

  As shown in FIG. 3, the concealing layer 6a having the same color as that of the confidential information layer 2 is formed only on a portion covering the confidential concealment layer 2, that is, a position (area) where the confidential information can be formed. Also good. Further, as shown in FIG. 4, the similar concealment layer 6 a includes a position (region) where confidential information can be formed by the confidential concealment layer 2, and may be formed on the entire base material 1 that is wider than this. .

  As described above, the color of the confidential information layer of the printed matter with the scratch concealment layer can be obtained even when strong light is applied to the base material of the printed matter with the scratch concealment layer from the side having the concealment layer or the side having no concealment layer. By making the color of the concealment layer the same color, the color of the confidential information layer and the color of the concealment layer overlap so that the confidential information is not seen through from the concealment layer side or the substrate side, and the confidential information is illegal. Can be prevented from being read.

  In addition, it is possible to use ordinary color ink as a concealing layer without using a specific ink having a high concealment ratio such as black ink or silver ink that has been used for concealing a confidential information layer. Therefore, it is not necessary to perform special printing such as silk screen printing with silver ink, and it is not necessary to put in complicated processes such as filming, so it is possible to produce a printed material with a scratch concealment layer at low cost and efficiency. can do.

  Further, as described above, by forming a concealing layer using a normal color ink, a pattern or the like can be imparted to the surface (concealing layer) of the printed matter with the scratch concealing layer, and the scratch concealing layer having a high design property. A printed matter can be produced.

It is a schematic sectional drawing for demonstrating the printed matter with a scratch concealment layer of 1st Embodiment of this invention. It is a schematic sectional drawing for demonstrating the printed matter with a scratch concealment layer of 2nd Embodiment of this invention. It is a schematic sectional drawing for demonstrating the other printed matter with a scratch concealment layer of 2nd Embodiment of this invention. It is a schematic sectional drawing for demonstrating the other printed matter with a scratch concealment layer of 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Base material 2 ... Confidential information layer 3 ... Protective layer 4 ... Release layer 5, 6, 6a, 6b, 6c, 6d ... Concealing layer S ... Printed matter with a scratch concealing layer

Claims (6)

In the printed matter with the scratch concealment layer formed from the base material, the confidential information layer, the protective layer, and the concealment layer,
A printed matter with a scratch concealment layer, wherein the color of the confidential information layer and the color of the concealment layer are the same color. In the printed matter with a scratch concealing layer according to claim 1,
The same color is a color that can be visually judged as the same color under ambient light, and the printed matter with a scratch concealing layer. In the printed matter with a scratch concealing layer according to claim 1 or 2,
When the concealing layer is formed of a plurality of layers, at least one color of the layer forming the concealing layer and the color of the confidential information layer are the same color. Printed material with concealment layer. In the printed matter with a scratch concealing layer according to claim 3,
The printed matter with a scratch concealment layer, wherein the color of the concealment layer adjacent to the confidential information layer and the color of the confidential information layer of the concealment layer are the same color.   A confidential information layer is formed on a base material, a protective layer is formed on the confidential information layer, and a concealing layer having the same color as the color of the confidential information layer is formed on the protective layer. A method for producing a printed matter with a scratch concealing layer.   A concealing method comprising: forming a protective layer on a confidential information layer formed on a substrate; and forming a concealing layer having the same color as the color of the confidential information layer on the protective layer.

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