JPH1071759A - Antifalsification paper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent bright threads from separating from a base paper by a method wherein the bright threads are put in the base paper by paper making method under the condition that the glaring threads are intermittently exposed at bare parts are intermittently covered at covering parts between the bare parts. SOLUTION: Glaring threads 3 are put in a base paper 2 by paper making method so as to intermittently expose the threads 3 at bare parts and intermittently cover the threads 3 at covering parts 5 between the bare parts 4 so as to constitute an antifalsification paper 1. As a result, due to the intermittent exposure of the threads 3 at the base parts 4, when the paper is copied, no metallic color is represented, resulting in preventing the paper from being formed. At the same time, no confirmation of the edge face of the paper 1 is necessary for checking whether the paper is a forgery or not. Further, since the threads 3 are covered intermittently at the covering parts 5, no separation of the threads 3 from the base paper 2 develops. Furthermore, since both the ends of the threads are held in the base paper 2 by the covering parts 5, the separation of the threads 3 is surely prevented from developing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to anti-counterfeiting paper for railway tickets and the like, and more particularly to a type of anti-counterfeiting paper in which a glittering thread is inserted into a base paper.

[0002]

2. Description of the Related Art Conventionally, as forgery prevention paper, for example, a printed pattern (ground pattern) for forgery prevention is formed by printing fine dots or fine lines on the surface, and when thinly copied, the dots and lines are clearly seen. In some cases, when a copy is made dark, dots are broken into lines or characters, or lines are broken and become thicker. However, there has been a remarkable improvement in the performance of a copying machine, and it has become difficult to prevent forgery by using such a method.

In order to solve this problem, for example, a paper in which a glittering thread is inserted into one surface of a base paper (see JP-A-7-56377) has been proposed as a forgery prevention paper. This is to prevent forgery by utilizing the fact that a metallic color does not appear at a portion corresponding to a glittering thread even when color copying is performed.

[0004]

However, when the glittering thread is inserted into one surface of the base paper, there is a problem that the thread is easily peeled off because it is exposed on the surface of the paper.

[0005] Therefore, a technical problem to be solved by the present invention is to prevent the glittering thread from peeling off from the base paper in a type of anti-counterfeit paper in which the glittering thread is inserted into the base paper.

[0006]

The anti-counterfeit paper according to the present invention is a type of anti-counterfeit paper in which a brilliant thread is inserted into a base paper, in order to solve the above-mentioned technical problems. The base paper is characterized in that an exposed portion intermittently exposing the glittering thread and a covering portion intermittently covering the glittering thread between the exposed portions are provided on one side. The anti-counterfeit paper of this configuration can be manufactured by providing a small convex portion having the same width as the thread on the crossing net portion of the paper machine, and supplying the stock liquid with the thread placed on the convex portion. . In other words, in this case, the thread is sandwiched between the stock liquids at the position where there is no convex portion, so that the covering portion is formed,
At the position of the protrusion, the exposed portion is formed because the thread is exposed from the lower surface side of the stock liquid. This anti-counterfeit paper can be used, for example, as a gift certificate.

In the above configuration, since the glittering thread is intermittently exposed at the exposed portion, even if the thread is copied, the forgery can be prevented because the metallic color does not appear. Also,
Whether it is counterfeit or not can be easily confirmed by the shiny presence or absence of the thread. Moreover, since the glittering thread is intermittently covered with the covering portion of the base paper, it is possible to prevent the glittering thread from coming off the base paper.

In the above configuration, it is preferable that the base paper is configured so that both end portions of the glittering thread are covered. If both ends of the paper are exposed, both ends of the glittering thread may rise from the base paper, and the glittering thread may be peeled off due to the breakage of the covering portion. Since both ends of the glittering thread are held in the base paper by the covering portion, the problem of peeling of the glittering thread can be more reliably prevented.

Further, in the above configuration, it is preferable to use a glittering thread having an adhesive layer made of, for example, a water-soluble binder having a heat melting temperature of 60 to 80 ° C. on the back surface. With this configuration, the glittering thread adheres to the base paper during the papermaking process, so that even if both ends of the glittering thread are exposed, the glittering thread is prevented from peeling from the base paper. it can.

[0010] In the above configuration, it is preferable that the base paper is configured so that both sides of the glittering thread become the watermark portions with the exposed portion interposed therebetween. With this configuration,
Since the watermark portion cannot be formed when copied, the forgery prevention effect can be enhanced. In addition, the forgery prevention paper of this configuration is provided with the convex portion provided on the mesh portion of the paper machine,
It can be manufactured by making it slightly wider than the thread. In other words, with this configuration, both sides of the exposed portion of the base paper are thinned by the amount of the convex portion, so that the watermark portion can be formed by appropriately setting the thickness.

In the above configuration, it is preferable to use a glitter thread having a hologram pattern. With such a configuration, a forgery prevention effect can be obtained by iridescent color development when color copying is performed, and also a forgery prevention effect due to difficulty in obtaining, for example, a general glittering sheet such as an aluminum foil. can get.

Further, in the above configuration, it is preferable to apply a forgery prevention printed pattern (fine ground pattern or the like) on the surface of the base paper. According to this structure, not only the forgery prevention effect by the glittering thread but also the forgery prevention effect by the printed pattern can be obtained, so that the forgery can be more reliably prevented.

For example, when the forgery prevention paper is used as the railway ticket or the like, information such as boarding date and time, ticket type, boarding section and fare is recorded on the opposite surface of the base paper by a magnetic information device. A magnetic recording layer for reading and writing can be provided. According to this configuration, the information such as the boarding date and time and the fare are magnetically read and written on the magnetic recording layer by the magnetic information device. Therefore, for example, the fare etc. of the purchased ticket is rewritten. Are more difficult and the anti-counterfeiting effect is higher.

Further, in the above structure, a magnetic field may be provided at a position on the opposite surface of the base paper that does not correspond to the glitter thread, or at a position that does not correspond to the glitter thread and a position that does not correspond to the watermark portion on the opposite surface. Preferably, a recording layer is provided. When a magnetic recording layer is provided at a position corresponding to the glitter thread on the opposite surface of the base paper or at a position corresponding to the watermark portion on the opposite surface, magnetic recording is performed in accordance with the thickness of the base paper. There is a possibility that unevenness in the coating thickness of the layer may occur. If the coating unevenness occurs, the riding date and time by the magnetic information device performed on the magnetic recording layer formed after the coating is cured. This is because there is a risk that the operation of reading and writing information such as the above becomes uncertain.

In the above configuration, a thermosensitive coloring layer may be provided at a position different from the exposed portion on one side of the base paper. According to this configuration, when the forgery prevention paper is used for a railway ticket, for example, as described above, the thermal head corresponding to the information such as the boarding date and time is pressed against the base paper. Thereby, the heat-sensitive coloring layer is colored by heating, and it is possible to print information such as the boarding date and time. By doing so, in a railway ticket or the like, not only the information such as the boarding date and time is printed on the surface of the transfer ribbon, but also the above configuration enables not only the transfer printing but also the thermal printing. Become.

In this configuration, for example, a transparent print layer having a forgery prevention printed pattern can be provided on the entire one side of the base paper. According to this configuration, the print information colored in the thermosensitive coloring layer can be visually recognized through the transparent printing layer. External light incident through the transparent printing layer is reflected by the glittering thread and then reaches the outside through the transparent printing layer, so that the glittering property of the thread is not impaired.

As the material for forming the thermosensitive coloring layer, for example, a material comprising a known thermosensitive coloring agent and a binder having a high melting point can be used. As a thermosensitive coloring agent that can be combined with the binder, for example,
Each of the following groups (1) to (4) can be arbitrarily selected.

That is, (1) long-chain fatty acid irons such as ferric stearate and ferric behenate and gallic acid, methyl gallate, lauryl gallate, protocatechuic acid, protocatechuic acid Phenols such as ethyl ester and 3,4-dihydroxybenzophenone; (2) a combination of a long-chain fatty acid metal such as cupric behenate and a metal chelating agent such as diphenylcarbazide; (3) phenols And a kind of photochromic benzoindolinospiropyran compound, (4) a combination of a leuco dye such as crystal violet lactone and phenol, and the like are preferably used.

On the other hand, as the binder, those having a high melting point of 180 ° C. or higher, such as cellulose acetate, methyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose and polyvinyl alcohol, are preferably used.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to FIGS.

FIG. 1 is a plan view of the forgery prevention sheet, and FIG. 2 is a sectional view taken along line II-II of FIG. This anti-counterfeit paper 1
It has a configuration in which the glittering thread 3 is inserted into the base paper 2,
The base paper 2 includes a plurality of exposed portions 4 that intermittently expose the glittering threads 3 and a covering portion 5 that intermittently covers the glittering threads 3 between the exposed portions 4. In the base paper 2, both ends of the glittering thread 3 are configured as covering portions 5, and both ends of the glittering thread 3 are held in the forgery prevention paper 1.

FIGS. 3 and 4 show one embodiment of the state of production of the forgery prevention paper having this configuration. 3 is a longitudinal sectional view of the thread 3, FIG. 4A is a sectional view taken along the line IVa-IVa of FIG. 3, and FIG. 4B is a sectional view taken along the line IVb-IVb of FIG.
As shown in the figure, this anti-counterfeit paper is provided with a small convex portion 6a having the same width as the thread 3 on the cross-mesh portion 6 of the paper machine, and the stock liquid 7 with the thread 3 placed on the convex portion 6a. Can be manufactured. That is, with this configuration, the thread 3 is located at a position between the protrusions 6a.
Is sandwiched between the stock liquids 7, so that the covering portion 5 is formed and the convex portions 6 are formed.
At the position a, the exposed portion 4 is formed because the thread 3 is the lowermost surface.

In the forgery prevention paper 1, the glittering thread 3 is intermittently exposed in the exposed portion 4, so that when copied, a metallic color does not appear, so that forgery can be prevented. There is no need to check the edge of the paper to see if it is a good product. In addition, since the glittering thread 3 is intermittently covered with the covering portion 5 of the base paper 2, the glittering thread 3 can be prevented from peeling off from the base paper 2, and both ends of the glittering thread 3 can be protected. Since the glittering thread 3 is held in the base paper 2 by the covering portion 5, the peeling of the glittering thread 3 can be more reliably prevented.

As the glittering thread 3, an aluminum foil or a thread having a hologram pattern can be used. When the aluminum foil is used, when the color copy is performed, the portion of the glittering sheet 3 appears black, and when the hologram pattern is used, the portion of the glittering sheet 3 appears in rainbow colors, so that forgery can be prevented. Note that the glitter thread 3 having the hologram pattern is more difficult to obtain than the aluminum foil, so it can be said that the anti-counterfeit effect is higher.

The glittering thread having a hologram pattern is formed by forming a polypropylene resin, a polyester resin, a polyamide resin, a polycarbonate resin,
Or to form a hologram pattern layer made of a resin having transparency such as ethylene-vinyl alcohol copolymer,
An aluminum vapor-deposited layer formed thereon, or a substrate film in which a hologram pattern is embossed and aluminum vapor-deposited can be used.

It should be noted that the present invention is not limited to the above embodiment, but can be embodied in various other modes. For example, the glittering thread 3 has, for example, a heat melting temperature of 6
What provided the adhesive layer which consists of a water-soluble binder of 0-80 degreeC on the back surface can be used. With this configuration, the glittering thread 3 adheres to the base paper 2 in a state where the forgery prevention paper 1 is completed, so that the adhesion between the base paper 2 and the glittering thread 3 is improved.

Further, a forgery prevention printed pattern (a fine ground pattern or the like) may be applied to the surface of the base paper 2. Since the anti-counterfeiting printed design is composed of fine dots and lines as described above,
At least a portion of the glittering thread 3 remains exposed. Therefore, not only the anti-counterfeiting effect by the glittering thread 3 but also the anti-counterfeiting effect by the printed pattern can be obtained, so that counterfeiting can be more reliably prevented.

Further, as shown by phantom lines in FIG. 1, watermarks 8 can be provided on both sides of the glittering thread 3 with the exposed portion 4 interposed therebetween. With such a configuration, since the watermark portion 8 cannot be formed when copying, the forgery prevention effect can be further enhanced. In addition, as shown in FIG. 5, the forgery prevention paper having this configuration can be manufactured by making the above-mentioned convex portion 6a provided on the cross net portion 6 slightly wider than the thread 3. In other words, with this configuration, the paper thickness on both sides of the exposed portion 4 is reduced by the amount of the convex portion 6a. Therefore, by appropriately setting the paper thickness of that portion,
It can be a watermark.

When the anti-counterfeit paper is used as a railway ticket, as shown in FIGS. 6 and 7, the thermosensitive coloring layer 12 is provided on the front side of the base paper 2a which does not correspond to the glittering thread 3a. On the entire surface of the base paper 2a, there is provided a printing layer 14 composed of a tint block and a fine pattern (not shown) using a logo of each railway company, etc.
The magnetic recording layer 10 can be provided on the back side of the base paper 2 that does not correspond to the watermark 8a.

By the way, as shown in FIG. 6, the "free seat limited express ticket" (excluding the printing layer 14 composed of the tint block, the fine pattern, etc.), the date of "Ko Station-Otsu Station", the date of "April 20", etc. The variable information can be colored and printed by pressing a thermal head (not shown) against the railway ticket. Further, on the back side of the base paper 2a, for example, a magnetic recording layer 10 for reading and writing magnetic information corresponding to the information displayed in FIG. 6 by a magnetic information device is provided. It has become more difficult. That is, this railway ticket realizes not only the anti-counterfeiting effect by the glittering thread 3 but also the anti-counterfeiting effect by magnetic information. Therefore, for example, as shown in FIG. Long-distance tickets, designated tickets,
Immediately after purchasing a sleeper ticket or the like, unauthorized riding such as copying these and receiving a refund is more reliably prevented. In the forgery prevention paper of this modified embodiment, the heat-sensitive coloring layer 12 is not formed on the glittering thread 3a. This is because the heat-sensitive coloring layer 12 is not a completely transparent layer. This is for preventing the glitter of the glitter thread 3a from being impaired by forming the layer 12 on the glitter thread 3a.

[Brief description of the drawings]

FIG. 1 is a plan view illustrating an embodiment of a forgery prevention sheet according to the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a cross-sectional view showing a state in which the forgery prevention paper is manufactured in a longitudinal direction of the thread 3.

4A is a sectional view taken along line IVa-IVa in FIG. 3, and FIG. 4B is a sectional view taken along line IVb-IVb in FIG.

FIG. 5 is a sectional view showing a modification of FIG. 4 (b).

FIG. 6 is a front view showing a modified form of the forgery prevention paper according to the present invention.

FIG. 7 is a cross-sectional view taken along line VI-VI of the forgery prevention paper shown in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Forgery prevention paper 2 Base paper 2a Base paper 3 Glitter thread 3a Glitter thread 4 Exposure part 5 Coating part 6 Draft net part 6a Convex part 7 Stock liquid 8 Watermark part 8a Watermark part 10 Magnetic recording layer 12 Thermal coloring layer 14 Printing layer

Claims (11)

[Claims] 1. A glittering thread (3, 3) is provided on a base paper (2, 2a).
a), wherein the base paper (2, 2a) includes an exposed portion (4) intermittently exposing the glittering thread (3, 3a); A forgery-prevention paper comprising a coating part (5) intermittently covering the glittering threads (3, 3a) between the parts (4) on one side. 2. The forgery prevention according to claim 1, wherein the base paper (2, 2a) has both ends of the glittering thread (3, 3a) configured as the covering portion (5). Paper. 3. The forgery prevention paper according to claim 1, wherein said glittering thread (3, 3a) has an adhesive layer on a back surface. 4. The base paper (2, 2a) has watermark portions (8) on both sides of the glitter thread (3, 3a) with the exposed portion (4) interposed therebetween.
2. The forgery prevention sheet according to claim 1, wherein the sheet is configured as: 5. The anti-counterfeit paper according to claim 1, wherein said glittering thread has a hologram pattern. 6. The forgery-prevention paper according to claim 1, wherein a forgery-prevention printing symbol is applied to the surface of the base paper (2, 2a). 7. The anti-counterfeit paper according to claim 1, wherein a magnetic recording layer (10) is provided on the opposite side of the base paper (2a). 8. The forgery prevention paper according to claim 7, wherein the magnetic recording layer is provided at a position not corresponding to the glittering thread. 9. A magnetic recording layer (10) provided at a position opposite to the glittering thread (3a) and the watermark portion (8) on the opposite surface of the base paper (2a). 4. The forgery prevention paper according to 4. 10. The forgery according to claim 1, wherein a thermosensitive coloring layer is provided on the one side of the base paper (2a) at a position different from the exposed portion (4). Prevention paper. 11. The forgery prevention paper according to claim 1, which is used as a railway ticket.