JP2012126041A - Tampering prevention paper card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tampering prevention paper card in which peeling off, repasting or the like for the purpose of tampering thereof is certainly prevented, regarding prevention of counterfeiting or tampering of an ID card and the like.SOLUTION: The tampering prevention paper card which has, on one of sides of its paper substrate, an adhesive layer, a thermoplastic resin film, a concealment layer, a design print layer, and a personal print receiving layer, and on its another side, an adhesive layer and a thermoplastic resin film, is characterized in that the thermoplastic films have grid-like incisions starting from its upper end and reaching its bottom end (paper substrate).

Description

  The present invention relates to a tamper-proof paper card that can reliably prevent tampering due to peeling, pasting or the like.

  Conventionally, cards having a function of performing some kind of proof are widely used. For example, a so-called ID card such as a driver's license, an employee's card, or a member's card, a service card that can receive a service when presented, a prepaid card, or the like.

  Various methods are used for these cards in order to prevent forgery and tampering. As one of the leading anti-counterfeiting and tampering prevention methods, an appropriate watermark for the purpose of preventing counterfeiting and tampering is provided on the surface to which one of the sheets is bonded in a card formed by bonding two sheets together. Some are printed. This is because the watermark-printed sheet surface does not appear on the surface of the card because the sheet surface on which the watermark-printing has been performed is bonded to another sheet.

  The card is determined based on the presence or absence of watermark printing for preventing counterfeiting or tampering, and the confirmation is usually performed visually. In other words, normal sheets (such as white plastic) used for cards usually have a certain degree of translucency even if they seem to be opaque at first glance. This is because, in the normal use, the card manufactured by the above method is not conspicuous or recognized because the mark is hidden by the sheet. However, when the authenticity is determined, the watermark printing can be visually recognized by gazing at the card through the light. Accordingly, the presence / absence of watermark printing may be confirmed by passing an X-ray or the like. However, a determination form in which the presence / absence of watermark printing is visually confirmed is often used.

  That is, as shown in FIG. 1, a sheet on which information that may be counterfeited or altered (such as a sheet with a face photo (7), hereinafter referred to as a “sheet to be modified”) (1) and the pasting of the sheet are attached. One of the two sheets that are bonded to each other (hereinafter referred to as “second sheet”) (2) through the adhesive layer (3) and in contact with the adhesive layer (3) In order to prevent falsification, when the card base material is subjected to watermark printing (4) on the surface, the watermark printing does not remain on the second sheet (2) that is not the sheet to be modified when peeled off. Indispensable.

  One measure for this is to apply watermark printing (4) to the modification target sheet (1) and not to the second sheet (2). However, even when the watermark printing (4) is applied to the modification target sheet (1), the sheet (1) having the watermark printing (4) is not peeled cleanly from the adhesive surface but is broken and peeled off. The watermark printing (4) remains on the second sheet (2) together with the adhesive layer (3). Even if it is not destroyed, usually, the ink for watermark printing (4) is transferred to the adhesive layer (3), and the image for watermark printing is often transferred to the adhesive layer (3). If so, the adhesive layer (3) remains on the second sheet (2) side when it is peeled off even if the watermark printing (4) is applied to the modification target sheet (1). In other words, the modification target sheet When (1) and the adhesive layer (3) separate at the interface, it must be said that tampering is possible.

  Conventionally, the above-described alteration has been solved by adjusting the adhesive force. That is, when α is the adhesive strength between the modification target sheet (1) and the adhesive layer (3) and β is the adhesive strength between the second sheet (2) and the adhesive layer (3), α is larger than β. It is a method to do. Adjustment to make the adhesive force α> β can be performed by applying an adhesion inhibition treatment to the second sheet (2) which is not the modification target sheet (1). The improvement is Patent Document 1 or Patent Document 2.

  As shown in FIG. 2 in Patent Document 1, the structure of the card base material is a sheet A (5) on which information that may be altered is recorded or a layer for recording the information is provided. -G and B (6) are bonded via the adhesive layer C (3), and the surface where the watermark printing (4) is in contact with the adhesive layer C (3) of the sheet A (5), or the sheet B (6) adhesive layer C (3) contact surface, or card base material applied to both surfaces thereof, interlayer strengths Sa and Sb of the sheets A (5) and B (6), adhesive layer In the range where the relationship of the adhesive strength Sc of C is less than the temperature at which the card substrate is deformed from room temperature, Sa> Sb, Sc> Sb, and the sheet B is a void-containing film alone or a void-containing film layer It is the multilayer film which has.

  As shown in FIG. 3, the film laminate for preventing falsification in Patent Document 2 is provided with an easily printable layer (11) on the surface of a thermoplastic resin film (10), and a strong adhesion ink layer as a printed layer thereon. (12) and a multi-layer film laminate (11) each having a weak adhesion ink layer (13) and further having an adhesive layer (14) and a transparent protective film (15) on the printed layers (12) and (13). 16), and further, when the transparent protective film (15) is peeled from the multilayer film laminate (16), only the weak adhesion ink layer (13) is peeled from the base material and becomes unreadable. Is.

  However, in these methods, the ink layer (4), (12) or (13) is transferred to the adhesive layer (3) or (14) and further penetrates into the adhesive layer, and then the second sheet ( If 2) and (18) are reached, they are no longer valid. Such a phenomenon often occurs normally, and when heating is performed to peel off two sheets, ink transfer and penetration are promoted, and such a phenomenon is likely to occur. Furthermore, when a process that gives a difference in adhesive force is performed, curling of the created card is likely to occur. In general, the laminated resin card still has a defect that it is peeled off between some layers, altered and reused.

JP 2003-145663 A JP 2010-120174 A

  The present invention has been made in view of such a situation, and provides a tamper-proof paper card that can surely prevent tampering by peeling off, reattaching, or the like.

  The first invention is a tamper-proof paper card, as shown in FIG. 4a, on one side of a paper substrate (20), a thermoplastic resin film (21), a concealing layer (22), and design printing. A layer (23) and an image receiving layer (24) for personal printing, and a thermoplastic resin film (21) and a concealing layer (22) are provided on the other side of the paper substrate (20). As in 7), the thermoplastic resin film (21) has a grid-like cut (40) extending from the upper end of one side of the film (21) to the lower end of the other side. It is characterized by.

The second invention is a tamper-proof paper card, as shown in FIG. 4b, on one side of the paper substrate (20), an adhesive layer (25), a thermoplastic resin film (21), and a concealment. A paper substrate (20) provided with a layer (22), a design printing layer (23), and an image receiving layer (24) for personal printing;
An adhesive layer (25), a thermoplastic resin film (21) and a concealing layer (22) are provided on the other side of the thermoplastic resin film (21) as shown in FIG. Is characterized in that a cut (40) like a grid reaching from the upper end of one side of the film (21) to the lower end of the other side is made.

  According to a third invention described in the first or second invention, the paper base material (20) is a vulcanized fiber (30) as shown in (FIG. 5a) and (FIG. 5b). This is a tamper-proof paper card.

  The fourth invention is characterized in that the thermoplastic resin film (21) is an amorphous PET copolymer (PET-G) (31) as shown in (FIG. 6a) and (FIG. 6b). A tamper-proof paper card according to the first, second, or third invention.

  The first invention is a tamper-proof paper card, which is different from vinyl chloride, which is a conventional card base material, by using a paper base material, and does not generate toxic gas during incineration disposal. In addition, as shown in FIGS. 4a, 4b, 7a, and 7b, the thermoplastic resin film (21) includes the same film. A notch (40) is made from the upper end of one side to the lower end of the other side, and the notch (40) is concealed from above as shown in (Fig. 8a) and (Fig. 8b). Even if an attempt is made to peel off the cut thermoplastic resin film (21) for the purpose of tampering with the card, as shown in FIG. , Cut of thermoplastic resin film (21) 40) From the portion, it becomes a large number of small pieces (52), which are separated and separated, so that the image (50), the character (51), etc. are broken, as shown in (Fig. 10a) and (Fig. 10b). This has the advantage that it cannot be altered and reused.

  The second invention is a tamper-proof paper card. In addition to the advantages of the first invention, the adhesive strength is increased by providing an adhesive layer between the paper substrate and the thermoplastic resin film. Thus, the thermoplastic resin film has an advantage that it is difficult to peel off the paper base material.

  A third invention is the tamper-proof paper card according to the first invention or the second invention, wherein the paper base is a vulcanized fiber, wherein the vulcanized fiber is hard and has a rough surface. Yes, when the thermoplastic resin film is heat laminated, the thermoplastic resin flows into the concavo-convex portion of the vulcanized fiber, and the fiber and anchor effect improves the adhesive strength stronger than in the case of the first invention, and the vulcanized fiber and the thermoplastic resin. By providing an adhesive layer between the films, the adhesive strength is further improved.

  Further, in the present invention, the thermoplastic resin film is cut like a grid from the upper end of one side of the film to the lower end of the other side, so that the tamper-proof paper card can be used in a hot and humid environment. Even when placed on the surface, the thermoplastic resin film and the vulcanized fiber have a difference in expansion due to moisture absorption, so that the delamination strength between the two is reduced. And, it has the advantage that the decrease in delamination strength between the two can be alleviated.

According to a fourth aspect of the present invention, the thermoplastic resin film is an amorphous PET copolymer (PET-G), which is described in the first, second, or third aspect of the present invention. A non-crystalline PET copolymer (PET-G), which is a paper card, has the same strength and processability as a vinyl chloride material conventionally used for general resin cards, and is useful when discarded by incineration. It has the advantage of being ecological without the generation of toxic gases.

FIG. 1A is a schematic cross-sectional view of a card configuration of the prior art and Patent Document 1. FIG. (FIG. 1b) is a schematic cross-sectional view of the card of the prior art and Patent Document 1 from which the surface sheet has been peeled off. (FIG. 2a) is a schematic cross-sectional view showing a portion (within sheet B) (6) that is destroyed due to a difference in the cutting position (within sheet A) (5) in the peeling test of Patent Document 1. FIG. FIG. 2B is a schematic cross-sectional view showing a portion (within sheet B) (6) that is destroyed due to a difference in the cutting position (within sheet B) (6) in the peeling test of Patent Document 1. FIG. FIG. 3A is a schematic cross-sectional view of the reuse preventive film laminate of Patent Document 2 before peeling off the transparent protective film. FIG. 3B is a schematic cross-sectional view of the reuse prevention film laminate of Patent Document 2 after peeling off the transparent protective film. FIG. 4A is a schematic cross-sectional view of the configuration of the tamper-proof paper card of the first invention. FIG. 4B is a schematic cross-sectional view of a configuration having an adhesive layer (25) of the tamper-proof paper card of the second invention. FIG. 5A is a schematic cross-sectional view of the configuration of the tamper-proof paper card of the third invention. FIG. 5B is a schematic cross-sectional view of a configuration having an adhesive layer (25) of the tamper-proof paper card of the third invention. (FIG. 6a) is a schematic cross-sectional view of the configuration when the thermoplastic resin film (21) of the tamper-proof paper card of the fourth invention is an amorphous PET copolymer (PET-G) (31). (FIG. 6b) shows an adhesive layer (25) when the thermoplastic resin film (21) of the tamper-proof paper card of the fourth invention is an amorphous PET copolymer (PET-G) (31). FIG. (FIG. 7a) is a grid-like cut (40) for the thermoplastic resin film (21) or the non-crystalline PET copolymer (PET-G) (31) of the tamper-proof paper card of the present invention. The schematic cross-sectional schematic diagram of the structure which provided. (FIG. 7b) is a grid-like cut (40) with respect to the thermoplastic resin film (21) or amorphous PET copolymer (PET-G) (31) of the tamper-proof paper card of the present invention. The schematic plane schematic diagram of the structure which has an adhesive bond layer (25) when providing. (FIG. 8a) is a schematic plan view of a configuration in which a concealing layer (22) is provided on the cut (40) plane of (FIG. 7a). (FIG. 8b) is a schematic plan view of a configuration in which a concealing layer (22), a design printing layer (23), and an image receiving layer (24) for personal printing are provided on the cut (40) surface of FIG. 7a. Pattern diagram. (FIG. 9a) is a schematic plan view of the appearance of a tamper-proof paper card of the present invention. (FIG. 9 b) is a schematic plan view of the appearance when the surface layer is peeled off for the purpose of peeling the tamper-proof paper card of the present invention. FIG. 10A is an enlarged schematic view of one piece peeled apart when the surface layer is peeled off for the purpose of peeling the tamper-proof paper card of the present invention. FIG. 10B is a schematic view of a case where each piece peeled apart is to be replaced with another card when the surface layer is peeled off for the purpose of peeling the tamper-proof paper card of the present invention.

Hereinafter, a tamper-proof paper card according to the present invention will be described in detail based on an embodiment thereof.
There are two types of the tamper-proof paper card of the present invention (Fig. 4a) and (Fig. 4b). (Fig. 4a) is a thermoplastic resin film (21) on one side of the paper substrate (20), A hiding layer (22), a design printing layer (23), and an image receiving layer (24) for personal printing are provided, and a thermoplastic resin film (21) and a hiding layer ( 22), and as shown in FIG. 7, the thermoplastic resin film (21) has a grid pattern extending from the upper end of one side of the film (21) to the lower end of the other side. The notch (40) is provided.

  (FIG. 4b) shows an adhesive layer (25), a thermoplastic resin film (21), a concealing layer (22), a design printing layer (23), and personal printing on one side of a paper substrate (20). And an adhesive layer (25), a thermoplastic resin film (21) and a concealing layer (22) are provided on the other side of the paper substrate (20). As in 7), the thermoplastic resin film (21) is provided with a grid-like cut (40) extending from the upper end of one side of the film (21) to the lower end of the other side. By providing an adhesive layer (25) on one side of the paper substrate (20) and the other side of the paper substrate (20), the paper substrate (20) and the thermoplastic resin film ( 21) and improved interlayer adhesion strength.

  As the paper base material used in the present invention, a vulcanized fiber having a thickness of 0.8 mm is suitable, and high-quality paper, coated paper, synthetic paper, etc., which are general card papers, can be used, but a resin film and When laminated, it becomes easy to peel off under high temperature and high humidity or under high heat, so it is easily tampered with and may be bent or cracked when subjected to a strong impact.

  The unevenness of the surface of the vulcanized fiber used in the present invention is large and inferior in smoothness compared to general card paper (the unevenness difference is approximately 30 μm), but it is hard, strong in impact resistance, and strong in the waist. This is comparable to the impact strength of typical resin cards.

  As the thermoplastic resin film used in the present invention, any thermoplastic resin that can be thermally laminated at 140 to 160 ° C. can be used. Examples of the thermoplastic resin include high-density polyethylene, medium-density polyethylene, and low-density polyethylene. Polyethylene resins such as ethylene resins, propylene resins, polymethyl-1-pentene, polyamide resins such as nylon-6, nylon-6,6, nylon-6,10, nylon-6,12, ethylene glycol and terephthalate Polyethylene terephthalate containing acid as the main raw material, amorphous PET copolymer (PET-G), terpolymer or higher, aliphatic polyester such as polyethylene naphthalate, polylactic acid, polybutylene succinate, etc. Thermoplastic polyester resin, polycarbonate, atactic police Ren, syndiotactic polystyrene, a thermoplastic resin such as polyphenylene sulfide.

  Among these, it has the same strength and processing suitability as vinyl chloride resin, which is a general resin card, has chemical resistance, and is an ecological material that does not generate toxic gas during combustion. An amorphous PET copolymer (PET-G) can be suitably used as the thermoplastic resin film used in the present invention.

  Amorphous PET copolymer (PET-G) used in the present invention is for containers and packaging materials for foods and pharmaceuticals, electronic devices, cases for office supplies, etc., molded container lids, or for ID cards It is a resin modified from polyester resins such as polyethylene terephthalate (PET), which is widely used as a sheet, etc. It has better flexibility and impact resistance than PET, and it is amorphous so it has high transparency and heat. Excellent moldability.

Since the amorphous PET copolymer (PET-G) has a high heat melting rate and high fluidity, it penetrates deeper than the rough concavo-convex surface of the vulcanized fiber, which is the paper substrate used in the present invention, and adheres to it. Although it is not easy to peel PET-G from the vulcanized fiber because of so-called throwing pseudo-adhesion and anchor effect, the peel strength slightly decreases in a peel test under high temperature and high humidity or high temperature. In the present invention, white PET-G having a thickness of 0.05 mm is used to smooth the rough concavo-convex surface of the vulcanized fiber, impart printability, and the total sheet thickness is 0.78 to 0.82 mm.

  In order to compensate for this decrease in peel strength, an adhesive layer is provided between the amorphous PET copolymer (PET-G) and the vulcanized fiber, and the adhesive used in the present invention is white PET- Although it will not specifically limit if it adheres to G, Adhesive with low hygroscopicity (adhesive resin that becomes hydrophobic after drying) ) Can be used. Any adhesive can be used as long as it has a low viscosity, a high fluidity, and can penetrate and coat from one vulcanized fiber and can be thickened. Next, white PET-G in a hot-melt state penetrates into the gaps between the irregularities of the remaining vulcanized fiber and quickly fills the gaps.

  In the present invention, a cut like a grid reaching the vulcanized fiber from the upper end of one side of the white PET-G beyond the lower end of the other side is made. It is desirable that the number of grids in the G plane is 100 or more. The cuts are desirably provided on both sides of the tamper-proof paper card, and the effect of not causing curling or the like is also achieved.

  In the present invention, a concealment concealment layer is provided on the entire surface of the incision part in order to conceal the incision state after the incision step, but the concealment layer is also provided when the incision is provided on both sides of the tamper-proof paper card. It is desirable to be provided on both sides, and the coating method is not particularly limited, whether it is a screen printing method or a gravure printing method, but the white PET-G penetrates into the cut recesses of white PET-G and fills the recesses. The entire surface must be free of notches, and the concealing coating agent is made of resin, pigment, solvent, etc., but it has high fluidity, and the resin is white PET-G. It is desirable to use a resin system with high affinity for PET-G that adheres firmly to the surface.

  The present invention forms a tamper-proof paper card by providing a design printing layer and an image receiving layer for personal printing (for personal facial photo images) from the concealing layer on the white PET-G layer, Even if a third party tries to peel off the white PET-G film with cuts for the purpose of tampering with the card, the white PET-G film peels apart from the cut portions of the white PET-G film and is separated. As a result, the image, characters, and the like are broken, and the tampering and reuse cannot be performed.

(1) Sheet to be modified, sheet provided with a layer for recording information that may be modified (2) second sheet (3) adhesive layer (4) watermark printing (5) sheet A
(6) Sheet B
(7) Personal authentication recording layer (8) Remarks Recording layer (9-1) Incision reaching position in peeling test (9-2) Incision reaching position in peeling test (10) Thermoplastic resin film (11 ) Easy printing layer (12) Strong adhesion ink layer (13) Weak adhesion ink layer (14) Adhesive layer (15) Transparent protective film layer (16) Multilayer film laminate (18) On thermoplastic resin film (10) A film base layer (20) provided with an easily printable layer (11) on the paper base of the present invention (21) The thermoplastic resin film of the present invention (22) a concealing layer (23) a design printing layer (24) personal printing Image receiving layer (25) Adhesive layer of the present invention (30) Vulcanized fiber (31) Amorphous PET copolymer (PET-G)
(40) Cuts of grids in thermoplastic resin film or non-crystalline PET copolymer (50) Personal authentication record image of the present invention (51) Personal authentication record character of the present invention (52) Peel for the purpose of falsification Many small pieces of recorded personal authentication records

Claims (4)

A thermoplastic resin film, a concealing layer, a design printing layer, and an image receiving layer for personal printing are provided on one side of the paper base, and a thermoplastic resin film and a concealing layer are provided on the other side of the paper base. Further, the thermoplastic resin film is characterized by being cut like a grid reaching from the upper end of one side of the film to the lower end of the other side of the film. Prevention paper card. An adhesive layer, a thermoplastic resin film, a concealing layer, a design printing layer, and an image receiving layer for personal printing are provided on one side of the paper base, and the adhesive layer is provided on the other side of the paper base. A thermoplastic resin film and a concealing layer are provided, and the thermoplastic resin film is cut like a grid that reaches from the upper end of one side of the film to the lower end of the other side. Anti-tamper paper card, characterized by The tamper-proof paper card according to claim 1 or 2, wherein the paper base material is a vulcanized fiber. 4. The tamper-proof paper card according to claim 1, wherein the thermoplastic resin film is an amorphous PET copolymer (PET-G). 5.