JPH07101138A - Film, data recording medium using the same, printed matter and discrimination of forgery - Google Patents

Abstract

PURPOSE:To form a film having high design effect and excellent in forgery preventing effect by providing a plurality of pattern forming layers having characters or figures bonded thereto and the transparent layer laminated between them. CONSTITUTION:A film 10 is constituted of a base film 11 being a base layer and the printing layer 12 (12a, 12b, 12c) being a pattern forming layer and a transparent layer 13 (13a, 13b, 13c) alternately laminated on the base film. The printing layer 12 displays definite data by bonding geometrical patterns, characters, figures or marks using a dye having a predetermined hue and light transmittance. The printing layer 12 is constituted of cyan, magenta and yellow printing layers 12c. When the regions of the respective printing layers are looked at in the direction A in a drawing, the patterns of the respective printing layers 12 are superposed one upon another to show a 'sumi' hue that is the superposition of the hues of cyan, magenta and yellow one upon another.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film having improved design and anti-counterfeiting effect, an information recording medium and printed matter using the film, and a forgery discrimination method.

[0002]

2. Description of the Related Art A hologram is a recording medium in which wave information of light is recorded by a holographic technique, and can reproduce a delicate and three-dimensional image. Therefore, by providing the hologram on a medium such as a printed matter, it is possible to improve the design of the medium and enhance the catch-eye effect.

In addition, holograms are generally difficult to manufacture because they require special techniques and manufacturing equipment. Therefore, it is used as a forgery preventing means for these media by providing them on cash cards, credit cards, cash vouchers, securities, etc., which require security.

[0004]

However, nowadays, the level of forgery of a forger is improved, and a counterfeit product of a hologram which is so elaborate that the authenticity cannot be discriminated by visual inspection is being manufactured. There is. As a result, there is a problem that a counterfeit product is manufactured and abused even if the medium uses a hologram.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a new means having high designability and excellent forgery prevention effect.

[0006]

In order to achieve the above-mentioned object, a first solution of the film according to the present invention is to provide a predetermined character and a graphic with a colorant having a predetermined color and having a light transmitting property. , A plurality of pattern forming layers each having a pattern formed by a symbol, a pattern, or a pattern or a combination thereof, and a transparent layer made of a transparent body laminated between the respective pattern forming layers.

A second means of solving the film is to form a plurality of predetermined characters, figures, symbols, patterns, or patterns, or patterns formed by combining these, by using a light-transmitting color material having substantially the same color. And a transparent layer made of a transparent material laminated between the pattern forming layers.

The third solution means (10) of the film is a predetermined character, figure, symbol, pattern, or pattern or a combination of these, which is made of a light-transmitting color material composed of yellow, magenta, and cyan colors. Pattern forming layers (12a, 12b, 12)
c) and a transparent layer (13a, 13b, 13c) made of a transparent body laminated between the respective pattern forming layers.

A fourth solution means (20) of the film is the film of any one of the first to third solution means, and is provided with an adhesive layer (22) made of an adhesive material, which is provided on the surface of the film. It is characterized by being provided.

The fifth means for solving the film is the first to third means.
The film of any one of the above means is characterized in that it is provided with a heat-sealing layer which is provided on the surface of the film and which can be adhered to an object to be adhered by constant heating and pressurization.

The solution means (30) for the information recording medium is provided on the base material (11), the film of any one of the first to third solution means provided on the base material, and the film. Information recording layer (31) capable of recording recorded information
And is provided.

The printed matter solving means (40) is based on the substrate (1
1), an information display layer (41) provided on the base material for displaying information, and first to first provided on the information display layer.
The film according to any one of the third solving means.

A first means for solving the forgery discrimination method is a forgery discrimination method for discriminating the forgery of a medium on which information is recorded, wherein a color material having a predetermined color and having a light-transmitting property is used.
It is composed of a plurality of pattern forming layers each having a predetermined character, figure, symbol, pattern, or pattern or a pattern formed by combining these, and a transparent layer made of a transparent body laminated between the pattern forming layers. When a counterfeit discriminating layer is provided on the base material and viewed from multiple different viewing angles,
The authenticity of the medium is determined by whether or not the background color of the information recorded on the forgery discrimination layer changes to the color of each pattern forming layer and the color of the combination thereof.

A second solution of the forgery discriminating method is a forgery discriminating method for discriminating the forgery of a printed matter, in which a predetermined character, a figure, a symbol, and A plurality of pattern forming layers on which a pattern or a pattern or a pattern formed by combining these is formed;
A forgery discrimination layer composed of a transparent layer made of a transparent material laminated between the pattern forming layers is provided on the information display layer for displaying information, and when viewed from a plurality of different viewing angles, the It is characterized in that the authenticity of the printed matter is determined by whether or not the color on the information display layer changes to the color of each pattern forming layer and the color of the combination thereof.

[0015]

In the first to third means for solving the film,
Depending on the viewing angle of the film, the degree of overlapping of the patterns of each pattern forming layer changes, so that the color appears to change. Therefore, by applying this film to various media, the design and anti-counterfeit effect of the media can be enhanced.

In the fourth or fifth means for solving the film, the film is provided on the object to be adhered by an adhesive layer or a heat seal layer formed on the film. Therefore, the film can be easily provided on the object to be bonded.

In the information recording medium or the printed matter solving means, depending on the film, the background of the information or the color of the image of the information display layer changes depending on the viewing angle. Therefore, the designability of the information recording medium or the printed matter and the forgery prevention effect can be enhanced.

In the solution of the forgery discrimination method, the authenticity of the medium or the printed matter is discriminated based on the color of each pattern forming layer and the presence or absence of the color of the combination thereof. Therefore, it is possible to easily and surely determine the forgery of the medium or the printed matter.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a film, an information recording medium and a printed matter using the film, and a forgery discrimination method according to the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing a first embodiment of the film according to the present invention. First, the structure of the film 10 will be described. The film 10 includes a base film 11 as a base layer, and print layers 12 (12a, 12b, 12a, 12b, 12b provided on the base film 11 and alternately laminated as pattern forming layers).
12c) and the transparent layer 13 (13a, 13b, 13c).

The base film 11 is for supporting the printing layer 12 and the transparent layer 13 on the upper layer thereof, and may be made of any material such as a paper material and a film-shaped resin.

The printing layer 12 is a layer in which a predetermined pattern is formed by a color material having a predetermined color and having light transmittance (high light transmittance). Here, the pattern is a character, a figure, a symbol, a pattern, or a pattern such as a geometric pattern such as a dot or a line, or a combination of these to display certain information. Further, the patterns of the print layers 12 may be completely overlapped with each other or may be displaced in the thickness direction of the film 10.

The print layer 12 is a cyan print layer 12a, which is printed in cyan, magenta, and yellow colors, respectively.
It is composed of a magenta print layer 12b and a yellow print layer 12c. Colorants used in these printings include dyes and pigments, but offset inks having high transparency are preferable. Note that, like the film 10 in FIG. 1, the cyan print layer 12a, the magenta print layer 12b, and the yellow print layer 12c do not necessarily have to be stacked in this order.

The transparent layer 13 is composed of transparent layers 13a to 13c, and is formed of a transparent material having a light transmitting property. The transparent layer 13 may be formed by coating or
Examples include a method of attaching a film-shaped product. The transparent layers 13a and 13b are the cyan print layer 12a, the magenta print layer 12b, and the magenta print layer 12b, respectively.
This is for ensuring an optical path difference in the thickness direction between the yellow print layer 12c and the yellow print layer 12c. The transparent layer 13c is for protecting the yellow print layer 12c.

Next, the operation of the film 10 will be described. When the area is viewed from the direction A in the figure, the patterns of the respective print layers 12 overlap each other, and the pattern is seen as a color of a violet in which colors of cyan, magenta, and yellow are overlapped.
When the area is viewed from the direction B in the figure, the pattern looks like a green color in which cyan and yellow colors overlap. Similarly, when the respective regions are viewed from the directions C and D in the figure, the pattern looks like a color in which magenta and yellow and cyan and magenta overlap.

Therefore, the film 10 has cyan, magenta, and
Since the degree of overlapping of the patterns of yellow color changes, the colors appear to change.

FIG. 2 is a sectional view showing a second embodiment of the film according to the present invention. The film 20 shown in FIG. 2 is composed of a base film 21, a print layer 12 and a transparent layer 13 shown in FIG. 1 which are alternately laminated on an upper layer thereof, and an adhesive layer 22 provided on a lower layer of the base film 21. There is. The base film 21 is formed of a transparent body. The adhesive layer 22 is formed of a transparent adhesive material.
Therefore, since the film 20 as a whole has a light-transmitting property, the image is not shielded even if it is provided on the upper layer of the area where the image is formed. Although not shown, the adhesive layer 2
Instead of 2, a heat seal layer that can be adhered to an object to be adhered by constant heating and pressure may be provided. If formed as described above, the film 20 can be used as a tack film or a transfer film.

If the transparent layer 13c is formed so as to also serve as the base material (base film 21), the base film 21 need not be formed and the cyan print layer 12 can be formed.
The adhesive layer 22 may be directly formed on the lower layer of a.

FIG. 3 is a sectional view showing the construction of an embodiment of the information recording medium using the film according to the present invention. The information recording medium 30 includes a base film 11 and printing layers 12 (12a-1 to 12a-1) of FIG.
2c) and the transparent layer 13 (13a, 13b), and the information recording layer 31 provided thereon. Here, the information recording layer 31 is the yellow print layer 12
yellow printing layer 12c as it also has a role of protecting c
The information recording layer 31 is directly provided on the upper layer without providing the transparent layer 13c.

The information recording layer 31 is for recording information such as characters, and is made of a transparent material capable of transmitting light. The surface of the information recording layer 31 has writing characteristics, toner fixing suitability, ribbon transfer suitability, and the like. In order to improve the fixing performance of color materials such as ink ribbons and toner,
For example, the surface is made uneven by matte treatment, or is made of resin containing a porous material.

Looking at the information recording medium 30 on which the information is recorded, the background of the information is visible in the colors of yellow, magenta, cyan or a combination thereof due to the action of each printing layer 12 as in the film 10 described above. , Further, the color changes depending on the viewing angle.

FIG. 4 is a sectional view showing the construction of an embodiment of a printed matter using the film according to the present invention. Printed matter 40
Is composed of a base film 11, an information display layer 41 provided on the base film 11, and a printing layer 12 and a transparent layer 13 of FIG. 1 which are alternately laminated on the information display layer 41. The information display layer 41 is a layer in which information such as characters is displayed on the base film 11 by handwriting, printing by a printer, or the like.

When the printed matter 40 is viewed, the surface of the printed matter 40 looks like yellow, magenta, cyan, or a combination of these colors due to the action of each printing layer 12, like the film 10 described above, and the color changes depending on the viewing angle. The print layer 1
Since each pattern 2 is printed with the ink having high light transmittance, the information display layer 41 is not shielded by these patterns, and the image of the information display layer 41 is also visible.

When the above-mentioned information recording medium 30 and the printed matter 40 are copied by the copying apparatus, the background of the information on the information recording medium 30 and the image of the printed matter 40 are copied in some color. The background and surface colors of the do not change depending on the viewing angle. Therefore, the information recording medium 30,
When the printed matter 40 is applied to a medium such as a check, a cash voucher, a securities, and the like, and whether or not the background of information and the color of the surface change depending on the viewing angle, the information recording medium 30 and the printed matter can be visually observed. It becomes possible to reliably determine the authenticity of 40.

The embodiment of the film, the information recording medium and the printed material using the film according to the present invention, and the method for discriminating forgery have been described above. However, the present invention is not limited to the above-mentioned embodiment, and the present invention is not limited thereto. Various modifications are possible without departing from the scope of the present invention. For example, the print layer 12 has 3
It consisted of two printed layers 12a, 12b, 12c,
It may be composed of one layer, or may be composed of four or more layers.

Although the colors of yellow, magenta, and cyan are used for the pattern of each layer of the printing layer 12, other special colors (specially blended colors other than yellow, magenta, cyan, and violet) are not limited thereto. You may use. Further, the color of the pattern of each layer of the print layer 12 is 2 such as yellow and magenta, magenta and cyan, and yellow and cyan.
It may be composed of colors. Furthermore, the colors of all the patterns of each layer of the print layer 12 may be substantially the same. At this time, the color density of the pattern changes depending on the viewing angle.

[0036]

According to the film described in claims 1 to 3, the color is changed by the pattern forming layer and the transparent layer depending on the viewing angle. Therefore, by providing this film, the designability is improved. The anti-counterfeiting effect can be improved.

According to the film of claim 4 or 5, the film is provided with an adhesive layer or a heat seal layer,
Since the film can be provided on the object to be adhered, the film can be easily provided on the object to be adhered when the design is improved or the anti-counterfeiting effect is enhanced.

According to the information recording medium or the printed matter of claim 6 or 7, the background of the information or the color of the image of the information display layer is changed depending on the viewing angle. Therefore, the design of the information recording medium is improved. Can be improved. Furthermore, even if the information recording medium or the printed matter is copied by a copying machine, the color change cannot be reproduced in the copied matter. Therefore, by applying it to checks, cash vouchers, securities, etc., the counterfeiting can be prevented. The effect can be enhanced.

According to the forgery discrimination method of the eighth or ninth aspect, since the authenticity of the medium or the printed matter is discriminated by the presence or absence of the color of each pattern forming layer and the color of the combination thereof, it is mechanical. Even without using any means, it is possible to reliably determine the forgery of the medium or the printed matter by visual inspection. As a result, it becomes possible to easily and quickly determine the forgery.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a first embodiment of a film according to the present invention.

FIG. 2 is a cross-sectional view showing a second embodiment of the film according to the present invention.

FIG. 3 is a cross-sectional view showing a configuration of an example of an information recording medium using a film according to the present invention.

FIG. 4 is a cross-sectional view showing the configuration of an embodiment of a printed matter using the film according to the present invention.

[Explanation of symbols]

 10 film 11 base film 12 printing layer 12a cyan printing layer 12b magenta printing layer 12c yellow printing layer 13 (13a, 13b, 13c) transparent layer

Claims (9)

[Claims] 1. A plurality of pattern forming layers each having a predetermined character, a figure, a symbol, a pattern, a pattern, or a pattern formed by combining these with a color material having a predetermined color and having a light-transmitting property; A transparent layer composed of a transparent body laminated between pattern forming layers. 2. A predetermined character, a figure, a symbol, a pattern, each of which is made of a color material having substantially the same color and having a light-transmitting property.
Alternatively, a film comprising a plurality of pattern forming layers each having a pattern or a pattern formed by combining these and a transparent layer made of a transparent material laminated between the pattern forming layers. 3. A plurality of pattern forming layers each having a predetermined character, figure, symbol, pattern, or pattern or a pattern formed by combining these with a color material having a light-transmitting property of colors of yellow, magenta, and cyan. And a transparent layer composed of a transparent body laminated between the respective pattern forming layers. 4. The film according to any one of claims 1 to 3, further comprising an adhesive layer provided on the surface of the film and made of an adhesive material. 5. The film according to claim 1, further comprising a heat seal layer which is provided on the surface of the film and is capable of adhering to an object to be adhered by constant heating and pressurization. Film characterized by. 6. A base material, the film according to claim 1 provided on the base material, and a transparent information recording capable of recording information provided on the film. An information recording medium using a film, which comprises a layer. 7. A base material, an information display layer for displaying information, which is provided on the base material, and the film according to claim 1, which is provided on the information display layer. A printed matter using a film, which comprises: 8. A forgery discriminating method for discriminating forgery of a medium on which information is recorded, wherein a predetermined character, figure, symbol, pattern, or picture is formed by a color material having a predetermined color and having light transmittance. Alternatively, a plurality of pattern forming layers each having a pattern formed by these bonds and a forgery discrimination layer composed of a transparent layer made of a transparent material laminated between the respective pattern forming layers are provided on a substrate, When viewed from different viewing angles, whether the background color of the information recorded on the forgery discrimination layer changes to the color of each of the pattern forming layers and the color of a combination thereof is used to determine the authenticity of the medium. A forgery discrimination method characterized by discriminating. 9. A forgery discrimination method for discriminating a forgery of a printed matter, wherein a predetermined character, a figure, a symbol, a pattern, or a pattern or a combination thereof is used by a colorant having a predetermined color and having a light-transmitting property. A forgery discrimination layer composed of a plurality of pattern forming layers having a pattern formed thereon and a transparent layer made of a transparent material laminated between the pattern forming layers is provided on the information display layer for displaying information. When viewed from different visible angles, the authenticity of the printed matter is determined by whether or not the color on the information display layer changes to the color of each pattern forming layer and the color of the combination thereof. Forgery discrimination method to be.