KR101806391B1 - Anti-counterfeiting sheet having multi complex structure and manufacturing method thereof - Google Patents

Anti-counterfeiting sheet having multi complex structure and manufacturing method thereof Download PDF

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Publication number
KR101806391B1
KR101806391B1 KR1020150125002A KR20150125002A KR101806391B1 KR 101806391 B1 KR101806391 B1 KR 101806391B1 KR 1020150125002 A KR1020150125002 A KR 1020150125002A KR 20150125002 A KR20150125002 A KR 20150125002A KR 101806391 B1 KR101806391 B1 KR 101806391B1
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KR
South Korea
Prior art keywords
sheet
print pattern
pattern
print
fake
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KR1020150125002A
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Korean (ko)
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KR20170028123A (en
Inventor
유한솔
이혁원
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한국조폐공사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/342—Moiré effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/355—Security threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • B42D25/465—Associating two or more layers using chemicals or adhesives

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Printing Methods (AREA)

Abstract

The present invention relates to an anti-falsification sheet having a multiple composite structure and a method of manufacturing the same. More particularly, the present invention relates to an anti-falsification sheet having a multi- .
According to the present invention, it is possible to instantly transform or apply a flat plate printing technique reflecting the demand or technical necessity of a consumer even at a low manufacturing cost, to facilitate mass production, and to provide various It is possible to increase the technical differentiation and anti-falsification effect.

Description

TECHNICAL FIELD [0001] The present invention relates to an anti-falsification sheet having a multiple composite structure, and a method of manufacturing the same.

  The present invention relates to an anti-falsification sheet having a multiple composite structure for preventing coefficient management, position tracking and forgery and falsification, and a method of manufacturing the same. More particularly, the present invention relates to a anti- And an anti-falsification sheet maximizing a radiation interference effect.

Recently, forgery and falsification of banknotes, securities, passport cards, gift certificates, and various certificates for complementary purposes are emerging as social problems. The development of IT technology has increased the resolution and reproducibility of computer related technologies such as scanners, printers, multifunctional apparatuses and software, and the number of forgery and counterfeiting crimes is increasing, and counterfeiting techniques are also becoming more complicated and precise.

In order to solve such problems, various forgery prevention techniques have been developed. Examples of such forgery and fake technology include a gift, a silver line, a fluorescent dye, a fluorescent ink, a color conversion ink, a micro character, and a latent image through intaglio printing.

In Korean Patent Laid-Open Publication No. 2012-0135779 (Dec. 17, 2012), a latent image can be expressed on a printed matter by using an intaglio board having right and left asymmetrical cross-sectional structure, which can be formed by laser engraving, A latent image printed matter capable of preventing the forgery and falsification of a banknote, a security, a bond, an identification card, a gift certificate or a card by a copying machine or the like is presented.

In addition, Korean Patent Registration No. 1436893 (published on Apr. 2014, 2014) can form a latent image using a laser processing machine and a latent image die, thereby shortening the manufacturing time and simplifying the manufacturing step. Thus, A latent image print is presented.

However, as the day progresses, the forgery and fake technology has become diversified and advanced, and it has been precisely copied forgery by using a color printer, etc., and imitated by using fluorescent ink and intaglio printing using a coating device and an embossing device. It is becoming difficult to identify the authenticity of securities.

In addition, as shown in FIGS. 1 and 2, an intaglio printing method for forming a fine protrusion structure on the surface of a sheet in realizing a copying interrupt pattern or a latent image pattern is adopted. It is not suitable for forming various patterns depending on the shape of the substrate, and the manufacturing cost is relatively high, which makes it difficult to secure a low-cost product group or mass-produce.

In addition, in the case of implementing silverware in the past, it has to be implemented using a net-work in the papermaking process. Therefore, the manufacturing cost is high and it is difficult to immediately reflect the demand of the consumer, There is a problem that it is difficult to improve the forgery and falsification effect.

Korea Patent Publication No. 2012-0135779 (disclosed on December 17, 2012) Korean Registered Patent No. 1436893 (Announcement 2014 09.02)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a flat sheet printing method and a sheet stacking method which are suitable for promptly reflecting a demand of a consumer, And a method of manufacturing the same.

According to an aspect of the present invention, there is provided an anti-falsification sheet (A) comprising a first sheet (10) and a second sheet (20) A first print pattern 11 is formed on the opposite side of the lapped surface by a flat plate printing method and a second print pattern 21 is formed on the laminated side of the second sheet 20 by a flat plate printing method, 1 for preventing copying and forgery or falsification by interaction between the first print pattern (11) and the second print pattern (21).

According to a first preferred embodiment of the present invention, the first sheet 10 is made of a material having a predetermined light transmittance, and the first print pattern 11 and the second print pattern 21 are made of the anti- The first print pattern 11 may be formed so as to shield a part or all of the second print pattern 21 in the normal direction of the first print pattern A. [

At this time, the second sheet 20 may be made of a material having a predetermined light transmittance, and may be formed on the upper portion of the second print pattern 21 between the first sheet 10 and the second sheet 20 And an adhesive layer 30 made of an adhesive having light transmittance.

The protective sheet 40 may further include a protective layer 40 formed on at least one of the exposed surfaces of the first sheet 10 and the second exposed surface of the second sheet 20, The print pattern 11 and the second print pattern 21 are a plurality of linear patterns spaced apart from each other by a predetermined distance and the first print pattern 11 and the second print pattern 21 are arranged in a line The first print pattern 11 is formed to shield a part of the second print pattern 21 in the direction of the first print pattern 11 and the second print pattern 21 is overlapped with the first print pattern 11 to form a moire pattern ).

The second print pattern 21 may be a pattern representing a predetermined shape, shape, color, or combination thereof, and may be an identification code pattern including a Quick Response code (QR code) or a barcode .

At this time, the first print pattern 11 and the second print pattern 21 are patterned in such a manner that when the anti-falsification sheet A is viewed at a specific viewing angle, And is formed so as to be seen as an identification code pattern including a QR code (quick response code) or a barcode which is mixed or combined as a whole when the anti-falsification sheet A is viewed at a specific viewing angle .

It is preferable that at least one or more of the first printing patterns 21 and the second printing patterns 21 are formed in the region where the second printing pattern 21 is padded with the second printing pattern 21 or the region where the second printing pattern 21 is not formed on the second sheet 20 An additional pattern can be formed, which can be used as a role of improving the readability or easiness of recognition of the second print pattern 21, a role as a recognition coordinate, or an additional authenticity verification function.

According to a second preferred embodiment of the present invention, the first print pattern 11 and the second print pattern 21 are arranged so that they do not overlap each other or partially overlap each other with reference to the normal direction of the anti-falsification sheet A The second print pattern 21 may be a hidden image that is recognized when light is irradiated to the back surface of the anti-falsification sheet A.

At this time, the adhesive layer 30 may be further formed on the second printed pattern 21 between the first sheet 10 and the second sheet 20, and the adhesive layer 30 may be made of an adhesive having a predetermined light transmittance. A transmission suppressing layer 50 for lowering the light transmittance may be further provided on the upper portion of the second print pattern 21, the lower portion of the adhesive layer 30, or the upper portion of the adhesive layer 30.

The second print pattern 21 may be a pattern representing a predetermined shape, shape, color, or a combination thereof, and may be an identification code pattern including a Quick Response code or a barcode .

The first print pattern 11 and the second print pattern 21 may be formed by combining patterns or shapes or colors or combinations thereof when the anti-falsification sheet A is viewed in the normal direction And is formed so as to be seen as an identification code pattern including a QR code (Quick Response code) or a barcode, which is mixed or combined as a whole when the anti-falsification protection sheet A is viewed in the normal direction .

According to another aspect of the present invention, there is provided a method of manufacturing a light emitting diode (LED), including: forming a first print pattern on a first surface of a first sheet by a flat printing method; Forming a second print pattern (21) on one side of the second sheet (20) by a flat printing method; And joining a surface of the first sheet 10 on which the first print pattern 11 is not formed and a surface of the second sheet 20 on which the second print pattern 21 is formed, Wherein the first printed pattern (11) and the second printed pattern (21) interact to prevent copying and forgery of the anti-fake sheet.

According to an exemplary embodiment of the present invention, the first sheet 10 is made of a material having a predetermined light transmittance, and the first print pattern 11 and the second print pattern 21 are formed on the anti- The first print pattern 11 may be formed so as to shield a part or the whole of the second print pattern 21 in the normal direction of the first print pattern 11 and the second print pattern 21 ) Are disposed so that they do not overlap each other or partially overlap each other with reference to the normal direction of the anti-falsification sheet (A), and the second print pattern (21) It may be a hidden (hidden) image.

According to another aspect of the present invention, there is provided a method of manufacturing a printing apparatus, including: forming a second printing pattern on a first surface of a second sheet by a flat printing method; Joining a face of the first sheet (10) and a face of the second sheet (20) on which the second printed pattern (21) is formed; And forming a first print pattern (11) on the opposite side of the laminated surface of the first sheet (10) in a state of being laminated with the first sheet (10) and the second sheet (20) Wherein the first printed pattern (11) and the second printed pattern (21) prevent radiation and forgery by interaction between the first printed pattern (11) and the second printed pattern (21).

According to an exemplary embodiment of the present invention, the first sheet 10 is made of a material having a predetermined light transmittance, and the first print pattern 11 and the second print pattern 21 are formed on the anti- The first print pattern 11 may be formed so as to shield a part or the whole of the second print pattern 21 in the normal direction of the first print pattern 11 and the second print pattern 21 ) Are disposed so that they do not overlap each other or partially overlap each other with reference to the normal direction of the anti-falsification sheet (A), and the second print pattern (21) It may be a hidden (hidden) image.

The anti-falsification sheet having the multi-composite structure according to the present invention and the method of manufacturing the same according to the present invention can be readily modified or applied by reflecting the demand or technical necessity of the consumer even at a low manufacturing cost by utilizing the flat- It is easy to mass-produce, and it is possible to increase the technical differentiation and anti-falsification effect by giving functionality in various ways beyond the limitation of the conventional forgery prevention expression.

1 is a photograph of money in which a latent image pattern is formed by a conventional intaglio printing method.
2 is a schematic view showing that a latent image is generated according to a change in viewing angle in a conventional intaglio printing method.
3 and 4 are laminated structures of the anti-falsification sheet A according to the first embodiment of the present invention.
5 is a schematic view showing that additional patterns are formed in order to improve readability and ease of recognition of the latent image in the first embodiment of the present invention.
6 is a schematic view showing that an additional pattern is formed in accordance with the viewing angle change as an additional authenticity verification or recognition coordinate application in the first embodiment of the present invention.
7 is a schematic view for explaining a moire phenomenon in the second embodiment of the present invention.
FIG. 8 illustrates an example of a currency using a transparent window according to a third embodiment of the present invention. In FIG. 8, a paper-based transparent window is applied to the left, and a polymer-based transparent window is applied to the right.
9A to 9C illustrate application of an identification code pattern according to a fourth embodiment of the present invention, wherein Fig. 9A shows the final acquired image, Fig. 9B shows a case where the first sheet 10 and the second sheet 20, respectively, and FIG. 9C shows a method of printing all of the final images on the second sheet 20 in the form of silver.
10 is an illustration for explaining the hidden line in the sixth embodiment of the present invention.
11 is a laminated structure of the anti-falsification sheet A according to the seventh embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. Prior to the description, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and should be construed in accordance with the technical concept of the present invention.

Throughout this specification, when a member is " on " another member, this includes not only when the member is in contact with another member, but also when there is another member between the two members.

Throughout this specification, when an element is referred to as "including" an element, it is understood that it may include other elements as well, without departing from the other elements unless specifically stated otherwise.

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

In each step, the identification code is used for convenience of explanation, and the identification code does not describe the order of the steps, and each step may be performed differently from the stated order unless clearly specified in the context. have. That is, each of the steps may be performed in the same order as described, or may be performed substantially concurrently or in the reverse order.

First, the present invention basically provides an anti-falsification sheet A in which the first sheet 10 and the second sheet 20 are joined together, and the first sheet 10 and the second sheet 20 are provided with anti- The first print pattern 11 and the second print pattern 21 are formed by a flat plate printing method and their copying and forgery are prevented through their interaction.

In the present specification, 'laminating' is not limited to the case of paper made of paper, but rather is a term used for joining or joining surfaces of plate members made of various materials such as a polymer-based flim.

In the present invention, 'sheet' may be paper used for money or securities, or may be a polymer film. Specifically, in the case of paper, anti-copy paper, security paper, wallpaper, wrapping paper, coated paper, and the like can be used. The thickness of the first sheet 10 and the second sheet 20 is suitably about 20 to 200 mu m, but can be sufficiently changed depending on the purpose and purpose. When applied to ordinary banknote paper, the thickness is about 100 to 150 mu m And it is preferable that the thickness is controlled to be about 20 to 150 mu m in order to suit the feeding or printing of the sheet.

In the present invention, the term " flat printing process " means not an intaglio printing process for forming a forgery preventing pattern by forming a curved surface, a concavo-convex pattern, or the like on the surface. In the present invention, a gravure method, a flexo method, a letter press method, a screen method, an ink jet method, and a laser jet method. In terms of pattern precision, the above-mentioned methods More preferable.

In the present invention, the sheet may be supplied by a roll-to-roll method or a sheet-to-sheet method. The first sheet 10 and the second sheet 20) can be applied to various commonly used methods.

By adopting the flat printing method, the present invention can mass-produce many kinds of products in accordance with the needs of various consumers at a low cost, so that it is possible to produce a small quantity of a variety of products at low cost, And the like.

In the present invention, the first print pattern 11 and the second print pattern 21 may be induced to interact with each other in various ways to prevent radiation or forgery. The first printing pattern 11 and the second printing pattern 21 are partially or wholly overlapped with each other with reference to the normal direction of the anti-falsification sheet A, or The anti-falsification sheet A is formed in the form of silver which is not recognized when the first sheet 10 is not given transparency and the second print pattern 21 is not normally identified and light is irradiated to the back side, The first print pattern 11 and the second print pattern 21 may be arranged so that they are not completely overlapped with each other or only a part of the first print pattern 11 and the second print pattern 21 are overlapped with each other.

In addition, the first sheet 10 and the second sheet 20 can also be distinguished on the basis of the degree of light transmittance of each sheet, so that all printed patterns are visually recognized, A moire pattern or the like is formed on the back side of the sheet or a silver shape is recognized when light is irradiated on the back side of the sheet or all the sheets are provided in a transparent manner to form a so-called 'security window' It is possible to realize various types of forgery and alteration functions, such as whether the upper side is viewed from the upper side and the lower side is different from the lower side.

Specifically, transparency, light transmittance, and transparency of the first sheet 10 and the second sheet 20 can be controlled through various physical properties. In the case of the sheet material, the thickness, color, amount of the additive, The density, the length of the fiber, and the amount of the dye to be injected can be controlled. In the case of the film material, the film thickness, the egg production rate, the reflectance, the color, and the amount of the dye and the additive can be controlled.

Particularly, it is possible to control the recognition performance of the second print pattern 21 printed on the second sheet 20 by controlling the refractive indexes of the first sheet 10 and the second sheet 20. [ The thickness of the first sheet 10 may be limited when a small thickness sheet is to be used depending on the intended use. In this case, since the first sheet 10 having a small thickness needs to be utilized, The image formed on the second sheet 20 can be distorted or enlarged to be clearly seen by utilizing the refractive index of the sheet 10 in order to further improve the recognizability of the second printed pattern 21 formed on the second sheet 20 .

The first pattern 11 and the second pattern 21 are radiation patterns and forgery-preventing patterns formed in various shapes, and may include any shapes, shapes, colors, or combinations thereof including lines, Form is possible. A plurality of linear patterns spaced apart by a predetermined distance so as to express a moiré pattern, a silver pattern representing a specific figure or shape, an identification code pattern such as a QR code or a bar code, a security thread or a transparent window Or a combination of the above-mentioned patterns. In addition, the first pattern 11 and the second pattern 21 may be various color patterns or fluorescent / phosphorescent patterns, and the first pattern 11 and the second pattern 21 may be combined to form a single unified image.

Next, the present invention provides a method for manufacturing an anti-fake sheet having a multiple composite structure according to a preferred embodiment. The manufacturing method according to the present invention can be roughly divided into two. One is a first sheet 10 in which a pattern is not printed after both the first print pattern 11 and the second print pattern 21 are formed on one side of each of the first sheet 10 and the second sheet 20, And the other is a method in which the second printed pattern 21 is printed on one side of the second sheet 20 and then the first printed sheet 21 is printed on the printed side 10) to finally print the first print pattern 11 on the upper surface of the first sheet 10 (the opposite surface of the lapped surface). This is divided into whether or not all the patterns are printed on the respective sheets and then lapped, or whether a pattern is formed on only one sheet and then lapped on the other sheet to form a pattern on the remaining sheet. Among the two methods, it can be adopted and executed according to needs such as ease of process.

Hereinafter, an anti-falsification sheet having a multiple composite structure according to the present invention and a method for manufacturing the same will be described. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents. shall.

<First Embodiment: Viewing Angle Dependence Latent Pattern>

Latent images mean a phenomenon in which different types of images are displayed depending on the viewing angle, and have been used as security elements for security paper and banknotes. In the past, So that the tactile sensation can be felt. However, the present invention implements a latent image pattern having a viewing angle dependency by a flat printing method.

3 is a laminated structure of the anti-falsification sheet A according to the present embodiment. The present invention adopts a multi-layer structure in which a plurality of sheets are stacked in a pattern on a sheet by a flat plate printing method in place of conventional intaglio printing, so that only a specific viewing angle can be applied to the second sheet 20 So that the formed second print pattern 21 can be identified in the form of a latent image. 3, the second printed pattern 21 is not identified (see (1) in FIG. 3), and a viewing angle of more than a predetermined angle is formed when the second printed pattern 21 is viewed in the normal direction of the anti- The second printed pattern 21 is identified only at the time (see (2) in Fig. 3), so that a latent image pattern having a viewing angle dependency can be implemented like the conventional intaglio printing.

In order to utilize the second print pattern 21 as a latent image pattern as in the present embodiment, the first sheet 10 should be made of a material having a predetermined light transmittance. The degree of light transmittance of the first sheet 10 can be controlled by various variables as mentioned above. Since the thicknesses of the first print pattern 11 and the second print pattern 21 are realized by a flat printing method, they can be formed at a level of 1 to 10 mu m, and a predetermined light transmittance The thickness of the first sheet 10 is preferably in the range of 30 to 80 탆.

4, an adhesive layer 30 made of an adhesive having a predetermined light transmittance is further formed between the first sheet 10 and the second sheet 20 on the second printed pattern 21 And a protective layer 40 may be further formed on at least one surface of the first sheet 10 and the second sheet 20 exposed to the outside.

The adhesive layer 30 is an adhesive layer that helps bond or bond the first sheet 10 and the second sheet 20 and employs a transparent but adhesive adhesive so that the second printed pattern 21 can be identified . In addition, it is preferable to take account of the adjustment of the thickness of the first sheet 10, since the thickness of the first sheet 10 may be substantially increased when the adhesive layer 30 is included. The protective layer 40 may be formed on both the exposed surfaces of the first sheet 10 and the second sheet 20 as a functional coating layer for protecting the printed pattern from damages, Or may be formed only on the exposed surface of the first sheet 10 as shown in Fig.

Further, the protective layer 40 may be used as an additional anti-fake layer, for example, a layer of deposited type or a layer of pearl ink having high reflectance may be applied. By introducing such a layer, it is possible to prevent the correct image from being obtained due to the protective layer 40 introduced in the case of copying or falsification using copying or scanning.

In order to improve the readability of the latent image pattern, the line spacing (pitch), line thickness, line angle, pattern, and shape of the first print pattern 11 can be taken into consideration. As shown in FIG. 5, 11 or the second print pattern 21 may be constituted by additional patterns for enhancing readability and ease of recognition. Specifically, the second print pattern 21 performing the main pattern function, which is a security element of the latent-image type, is considered in consideration of the printing state, the use period, the degree of discoloration of the first sheet 10 or the second print pattern 21, An additional pattern serving as an identification guide may be formed on the second print pattern 21 as shown in FIG. 5 in order to facilitate identification or recognition.

Further, as shown in FIG. 6, in a region where the main pattern is formed, a predetermined pattern in the peripheral portion (or in the form of a main pattern, an additional pattern formed by overlapping the region in which the main pattern is formed, Even if it is not easy to find out the difference between the case where the user (general person) sees it and the case where only the main pattern is printed, it is possible to identify various forms Point, line, etc.) can be formed. At this time, the additional pattern may include a fictitious pattern that is printed as necessary but does not have a certain functionality. This can be used as a recognition coordinate for determining whether a predetermined viewing angle has been reached when an identification device is used as a pattern formed only when a viewing angle is given at an arbitrary angle, By using patterns, more accurate and effective discrimination is possible.

&Lt; Second Embodiment: Viewing Angle Dependence Moire Pattern >

A moire pattern or a moire pattern means an interference pattern generated by repeatedly overlapping patterns having a predetermined interval, and a schematic diagram for explaining this is shown in Fig. 7 (Source: (CC) P. Fraundorf at Wikipedia.org ). In the present invention, a moiré phenomenon is induced by using a step of a pattern, an interval of a pattern, a curvature of a paper, and the like to reproduce an unexpected new pattern, thereby making precise copying difficult. In addition, when the first print pattern 11 and the second print pattern 21 are formed in a pattern having a certain hue, a moiré pattern of a combined color as shown in FIG. 7 may be implemented.

Specifically, the first print pattern 11 and the second print pattern 21 are arranged so that a part or all of the first print pattern 11 and the second print pattern 21 do not overlap or overlap with each other with respect to the normal direction of the sheet, The moire pattern can be generated in accordance with the change of the viewing angle.

&Lt; Third embodiment: application to a security window >

Transparent windows are used as security elements in security paper, gift certificates, banknotes, etc. They are made of polymer film and attached to paper in patch form or inserted in papermaking process. FIG. 8 is an example of a currency to which a transparent window is applied, the left is a paper-based transparent window application example, and the right is a polymer-based transparent window application example.

The transparent window may be divided into a case where a specific image appears only in one direction, that is, when viewed from the top to a bottom, and a case in which a specific image appears in both directions, that is, both the top and bottom. In the latter case, The material of the second sheet 20 is preferably configured to have a predetermined light transmittance, and this can also be realized by controlling the above-mentioned variables. The sheet material for realizing a transparent window may be a polymer film or a paper sheet, but it is more preferable to apply the film to the film in terms of durability, stretchability, and pattern precision.

&Lt; Fourth Embodiment: Identification Code Pattern >

The anti-falsification sheet (A) of the present invention can be embodied as a pattern representing shapes, shapes, colors, or combinations of the first print pattern 11 and the second print pattern 22, The first print pattern 11 and the second print pattern 22 may be embodied as an identification code pattern in a form mixed / combined in all or at a specific viewing angle in order to give a function for position tracking or coefficient management as needed It is possible. The identification code pattern is a pattern capable of indicating specific unique information, and may include a QR code, a bar code, etc., and can be printed with special ink such as fluorescent ink.

For example, the identification code pattern may be formed in various ways to obtain the final acquired image of FIG. 9A, and in a preferred embodiment, the first and second sheets 10 and 20, respectively, A part of the final image and the remaining part of the final image may be divided and printed so that a part of the final image and the remaining part of the image are combined when viewed from a specific viewing angle, whether in the normal direction of the sheet or in a direction inclined by a certain angle, The final image may be printed on the two sheets 20 in the form of silver in order to be identified only when the light is irradiated onto the back side of the sheet which is not normally identified.

According to this embodiment, by forming such an identification code pattern, it is possible to track an index or a position, to prevent forgery and falsification, to utilize it as a digital security element, and to personalize and personalize it.

<Fifth Embodiment: Pattern Recognition of Smartphone Interworking Method>

A smartphone can be utilized for identification of the anti-falsification sheet (A) of the present invention. Using the gravity sensor and camera in the smartphone, it is possible to extract the pattern recognized in the normal direction and the pattern recognized in the set recognition area, that is, the specific viewing angle, to confirm the authenticity of the security element more accurately and easily.

In addition, by identifying the identification code pattern as the digital security element mentioned in the fourth embodiment with the smartphone, information contained in the identification code can be processed in connection with the smart phone. Also, as shown in FIGS. 5 and 6, it can be utilized as a high-level security element or information identification element by utilizing an additional pattern formed for the purpose of preventing forgery or authenticity verification.

&Lt; Sixth Embodiment: Application to a security thread >

Silver lines are anti-counterfeiting elements applied to security paper, gift certificates, bank notes, etc., which are applied in patch form or inserted in the middle layer. The left side of FIG. 10 is a roll-shaped hidden line, and the right side is a wide-shaped hidden line and a partially exposed hidden line.

When the present invention is applied to the latent image type silver line, the print pattern and the laminated structure are formed in a similar manner to the first embodiment, and generally, the silver line in the inserted form is inserted through the papermaking process Therefore, it is preferable that the coating layer 40 is formed on the first sheet 10 as shown in FIG. 4 or on the bottom of the second sheet 20 so that the printed pattern and the sheet can be protected in this process. The above-mentioned moire pattern type silver wire is also applicable.

Example 7: Application to a watermark &gt;

Silver is a transparent pattern as a security element that is visible only when light is irradiated to the backside of a sheet. In order to implement silver on paper, the density and design of the material are adjusted and controlled through a mesh network. However, this conventional method has to be manufactured in a cost-effective way, which is uneconomical and has many restrictions to be applied to a small-lot production method. On the other hand, the present invention can realize silvering by a simple process at a low cost suited to the production of a small quantity of a variety of products through a combination of a multi-layer structure in which sheets are stacked and a flat printing pattern.

The silver feature is that the silver pattern is not normally identified, but the silver pattern is identified when the light is irradiated to the back of the sheet. Accordingly, in order to realize silvering, the first print pattern 11 and the second print pattern 21 should be formed so that there is an area in which the first print pattern 11 and the second print pattern 21 do not overlap each other with reference to the normal direction of the sheet, The exposure of the second print pattern 21 on the front side (upper side) of the sheet, that is, the upper side of the first sheet 10, must be minimized.

For this purpose, it is preferable to adjust the light transmittance of the first sheet 10 so that the first sheet 10 is somewhat opaque unlike the previous embodiments such as the latent image or the moire pattern. In addition, as shown in FIG. 11 It is more preferable to form the permeation inhibiting layer 50 between the first sheet 10 and the second sheet 20. [

The permeation inhibiting layer 50 may be formed on the adhesive layer 30 or between the adhesive layer 30 and the second printed pattern 21 as shown in FIG. The impermeability of the first sheet 10, that is, the first sheet 10 and the second sheet 20 by controlling the light transmittance of the first sheet 10 and the second sheet 20, is such that the possibility of exposure of the silver pattern is relatively high, It is even more important.

Although silver can be implemented through the second print pattern 21 of the second sheet 20, it is also possible to use a combination of the first print pattern 11 and the second print pattern 21, , And fluorescent, magnetic, IR, UV, and other functional security materials can be applied to the second printed pattern 21. For example, a multi-color gamut effect or a bar code including magnetism can be implemented using different fluorescence of the wavelength band.

The present invention is not limited to the above-described specific embodiment and description, and various changes and modifications may be made by those skilled in the art without departing from the scope of the present invention as claimed in the claims. And such modifications are within the scope of protection of the present invention.

A: Anti-fake sheet
10: first sheet
11: First print pattern
20: second sheet
21: 2nd printing pattern
30: Adhesive layer
40: Protective layer
50: permeation inhibiting layer

Claims (24)

In the anti-fake sheet (A) in which the first sheet (10) and the second sheet (20) are laminated,
A first printing pattern 11 is formed on the opposite side of the first side of the first sheet 10 by a flat printing method and a second printing pattern 11 is formed on the joined side of the second sheet 20 by a flat- (21) is formed on the first printed pattern (11), thereby preventing copying and forgery of the first printed pattern (11) and the second printed pattern (21)
The first print pattern 11 and the second print pattern 21 are formed of a material having a predetermined light transmittance and the first print pattern 11 and the second print pattern 21 are formed on the first sheet 10 in the normal direction of the anti- The print pattern 11 is formed so as to shield the entire second print pattern 21,
Further comprising a protective layer (40) formed on at least one of a surface exposed to the outside of the first sheet (10) and a surface exposed to the outside of the second sheet (20)
In the region where the second print pattern 21 is laid on the second print pattern 21 or in the region where the second print pattern 21 is not formed on the second sheet 20, Wherein the anti-fake sheet has a multi-composite structure. delete The method according to claim 1,
Wherein the second sheet (20) is made of a material having a predetermined light transmittance. The method according to claim 1,
(30) made of an adhesive having a predetermined light transmittance on the second printed pattern (21) between the first sheet (10) and the second sheet (20) Prevention sheet. delete delete The method according to claim 1,
Wherein the second print pattern (21) is a pattern indicating a predetermined shape, shape, color, or a combination thereof. The method according to claim 1,
Wherein the second print pattern (21) is an identification code pattern including a Quick Response code (QR code) or a barcode. The method according to claim 1,
The first print pattern 11 and the second print pattern 21 are displayed in a pattern representing a shape, a shape, a color, or a combination thereof when the anti-falsification sheet A is viewed at a specific viewing angle Wherein the anti-fake sheet has a multi-composite structure. The method according to claim 1,
The first print pattern 11 and the second print pattern 21 include a QR code (Quick Response code) or a barcode that is mixed or combined when the anti-falsification sheet A is viewed at a specific viewing angle Wherein the anti-fake sheet has a multi-composite structure. delete In the anti-fake sheet (A) in which the first sheet (10) and the second sheet (20) are laminated,
A first printing pattern 11 is formed on the opposite side of the first side of the first sheet 10 by a flat printing method and a second printing pattern 11 is formed on the joined side of the second sheet 20 by a flat- (21) is formed on the first printed pattern (11), thereby preventing copying and forgery of the first printed pattern (11) and the second printed pattern (21)
The first print pattern 11 and the second print pattern 21 are arranged so that they do not overlap each other or partially overlap with each other with reference to the normal direction of the anti-falsification sheet A, Wherein the anti-fake sheet has a multi-composite structure, wherein the anti-fake sheet is identified when light is irradiated to the backside of the anti-fake sheet. The method of claim 12,
(30) made of an adhesive having a predetermined light transmittance on the second printed pattern (21) between the first sheet (10) and the second sheet (20) Prevention sheet. 14. The method of claim 13,
And a transmission suppressing layer (50) for lowering light transmittance on the upper portion of the second print pattern (21), the lower portion of the adhesive layer (30) or the upper portion of the adhesive layer (30) Sheet. The method of claim 12,
Wherein the second print pattern (21) is a pattern indicating a predetermined shape, shape, color, or a combination thereof. The method of claim 12,
Wherein the second print pattern (21) is an identification code pattern including a Quick Response code (QR code) or a barcode. The method of claim 12,
The first print pattern 11 and the second print pattern 21 are displayed in a pattern representing a shape, a shape, a color, or a combination thereof when the anti-falsification sheet A is viewed in the normal direction, Wherein the anti-fake sheet has a multi-composite structure. The method of claim 12,
The first print pattern 11 and the second print pattern 21 include a QR code or a barcode that is mixed or combined when the anti-falsification sheet A is viewed in the normal direction Wherein the anti-fake sheet has a multi-composite structure. Forming a first print pattern (11) on one side of the first sheet (10) by a flat printing method;
Forming a second print pattern (21) on one side of the second sheet (20) by a flat printing method; And
And joining a surface of the first sheet 10 on which the first print pattern 11 is not formed and a surface of the second sheet 20 on which the second print pattern 21 is formed,
The first print pattern 11 and the second print pattern 21 are prevented from copying and forgery by the interaction of the first print pattern 11 and the second print pattern 21,
The first print pattern 11 and the second print pattern 21 are arranged so that they do not overlap each other or partially overlap with each other with reference to the normal direction of the anti-falsification sheet A, Wherein the anti-fake sheet has a multi-composite structure, which is identified when light is irradiated to the backside of the anti-fake sheet (A). The method of claim 19,
The first print pattern 11 and the second print pattern 21 are formed of a material having a predetermined light transmittance and the first print pattern 11 and the second print pattern 21 are formed on the first sheet 10 in the normal direction of the anti- Characterized in that the print pattern (11) is formed so as to shield part or all of the second print pattern (21). delete Forming a second print pattern (21) on one side of the second sheet (20) by a flat printing method;
Joining a face of the first sheet (10) and a face of the second sheet (20) on which the second printed pattern (21) is formed; And
Forming a first print pattern (11) on the opposite side of the laminated surface of the first sheet (10) in a state of being laminated with the first sheet (10) and the second sheet (20) by a flat printing method; Lt; / RTI &gt;
The first print pattern 11 and the second print pattern 21 are prevented from copying and forgery by the interaction of the first print pattern 11 and the second print pattern 21,
The first print pattern 11 and the second print pattern 21 are arranged so that they do not overlap each other or partially overlap with each other with reference to the normal direction of the anti-falsification sheet A, Wherein the anti-fake sheet has a multi-composite structure, which is identified when light is irradiated to the backside of the anti-fake sheet (A). 23. The method of claim 22,
The first print pattern 11 and the second print pattern 21 are formed of a material having a predetermined light transmittance and the first print pattern 11 and the second print pattern 21 are formed on the first sheet 10 in the normal direction of the anti- Characterized in that the print pattern (11) is formed so as to shield part or all of the second print pattern (21). delete
KR1020150125002A 2015-09-03 2015-09-03 Anti-counterfeiting sheet having multi complex structure and manufacturing method thereof KR101806391B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230075105A (en) 2021-11-22 2023-05-31 (주)광인사 printed media for preventing counterfeit

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019059743A1 (en) * 2017-09-25 2019-03-28 크립토골드맥스에이 주식회사 Moving qr code for forgery/tampering prevention
KR102541351B1 (en) * 2018-01-04 2023-06-07 조성재 Cryptocurrency distribution system and method
KR102269582B1 (en) * 2018-08-31 2021-06-29 한국조폐공사 Anti-counterfeiting sheet for preventing forgery and verifying authenticity and recognition method thereof
KR102502702B1 (en) * 2018-12-21 2023-02-23 한국조폐공사 Security sheet comprising watermark
KR20210138980A (en) * 2020-05-13 2021-11-22 엔비에스티(주) Means Preventing Forgery and Falsification Using Light Polarizing Materials and Method Using there of
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KR102333137B1 (en) * 2021-06-08 2021-12-01 박정훈 Multi Printing structure and printing sheet having the same structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002283696A (en) * 2001-03-22 2002-10-03 Dainippon Printing Co Ltd Forgery preventive card
JP2003305794A (en) * 2002-04-17 2003-10-28 National Printing Bureau Laminate discernible between truth and falsehood
JP2012018347A (en) * 2010-07-09 2012-01-26 Fujifilm Corp Forgery prevention medium having printing and birefringent pattern

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120135779A (en) 2011-06-07 2012-12-17 한국조폐공사 Printed matter with latent image, intaglio for making the same, and method of manufacturing the same
KR101436893B1 (en) 2013-11-04 2014-09-02 한국조폐공사 Printed Matter having Latent image and Method Manufacturing The Same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002283696A (en) * 2001-03-22 2002-10-03 Dainippon Printing Co Ltd Forgery preventive card
JP2003305794A (en) * 2002-04-17 2003-10-28 National Printing Bureau Laminate discernible between truth and falsehood
JP2012018347A (en) * 2010-07-09 2012-01-26 Fujifilm Corp Forgery prevention medium having printing and birefringent pattern

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230075105A (en) 2021-11-22 2023-05-31 (주)광인사 printed media for preventing counterfeit

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