JP2001018564A - Scratch card and forming method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize retention of secrecy and safety in the forming process and the circulating process for a scratch card. SOLUTION: A scratch card 10, a character symbol printing layer 3 and a heat-sensitive layer 7 are formed at a predetermined location on one side in a film-like card board 1. In addition, a scratch layer 4 for concealing the heat-sensitive layer 7 is formed on the surface of the heat-sensitive layer 7. When a card supplier supplies the scratch card to a card user, the supplier heat-sensitively print intrinsic information on the heat sensitive layer of the scratch card 10 formed in the above structure with a thermal head in order to complete the production of the scratch card 10 to provide.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scratch card for recognizing unique information by exposing the recording layer by erasing the scratch layer by hiding the recording layer on which the unique information is recorded and a method of producing the same. In particular, the present invention relates to a scratch card capable of maintaining confidentiality in a manufacturing process and a distribution process, and a method for producing the scratch card.

[0002]

2. Description of the Related Art Conventionally, a scratch card 20 of this type shown in FIG. A character / symbol printing layer 23 on which a precautionary note, unique information consisting of alphabets and numerals, and a management number are printed;
On the surface of No. 3, a scratch layer 24 is placed so that the unique information printed on the character / symbol printing layer 23 is not visible to the naked eye, and a tint block printing layer 25 on which a tint block to be the back of the card is printed is superposed on the scratch layer 24. Printing. A transparent protective layer 26 for covering and protecting the printed layer is formed on the entire front and back surfaces of the scratch card 20 having the above-described structure.

In the above-described scratch card, a card supplier records unique information such as a predetermined number of a plurality of digits, such as a personal identification number, on a character / symbol printing layer which is a recording layer of the unique information. Is hidden by a scratch layer and supplied to a card user. Such scratch cards include, for example, the following prepaid cards. That is, the card user removes the scratch layer when using the scratch card, recognizes the hidden specific information, and notifies the card provider of the recognized specific information. As a result, the card supplier can provide the card user with a service or the like corresponding to the purchase amount of the scratch card based on the notified unique information.

[0004]

The above-mentioned conventional scratch card and the method for producing the same have the following problems.

[0005] The first problem is that when the printing of the unique information is performed by a typewriter or the like, the unique information cannot be sufficiently hidden.

[0006] The reason is that irregularities due to the printing of the data of the unique information may appear on the surface of the scratch layer.

[0007] The second problem is that when a scratch card is prepared by a card supplier, there is a risk that the unique information is read and stolen.

[0008] The reason is that after the unique information is printed on the substrate, a scratch layer is formed on the surface to hide the unique information, so that the unique information may be read before the scratch layer is formed. Because there is.

[0009] An object of the present invention is to solve such problems and improve a security function for unique information.
An object of the present invention is to provide a highly safe scratch card and a method for producing the scratch card.

[0010]

A scratch card according to the present invention comprises, on at least one surface of a card base, a printing layer for mainly printing characters and symbols, and a heat-sensitive layer for printing unique information by heat. A scratch layer is provided for concealing at least the entire surface of the heat-sensitive layer among the surfaces over the print layer and the heat-sensitive layer.

Further, as a method of producing a scratch card, when a scratch card having the above-described structure is provided for use, a card supplier supplies unique information to the thermal layer before providing the scratch card to a card user. Thermal printing is used.

In such a structure and a producing method, since the unique information is thermally printed, it can be prevented from floating on the surface of the scratch layer, and the unique information is thermally printed inside the scratch layer. Therefore, it is possible to prevent the card from being read from the card at the card making stage.

[0013] Further, the unique information to be thermally printed is composed of characters in which any one of an alphabet, a number, and a mixture of the alphabet and a number is changed according to a predetermined rule. Desirable for read reliability. Therefore, the unique information is generated and managed using a single rule or a combination of conversion means such as mathematical formulas and random numbers as a predetermined rule.

[0014]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is a plan view of the scratch card shown in FIG. 1 as viewed from the back.

The illustrated scratch card 10 has a pattern printing layer 2 in which a surface pattern is printed on one surface of a card base 1 serving as a card surface, and a character / symbol printing layer 3 and a heat-sensitive layer on the other surface serving as a card back surface. 7. Each is created. Further, a scratch layer 4 and a tint block printing layer 5 are sequentially formed on the surface of the heat-sensitive layer 7, and finally the entire front and back surfaces of the card are covered with a transparent protective layer 6 for protecting the printing layer.

Accordingly, on the back side of the card, as shown in FIG. 2, a unique information area 11, a management number area 12, and a notice area 13 are provided via the transparent protective layer 6. In the unique information area 11, the copy-forgery-inhibited pattern printed on the copy-forgery-inhibited pattern print layer 5 can be seen, and the scratch layer 4 and the heat-sensitive layer 7 are formed therein. The management number area 12 and the notice area 13 are formed on the character / symbol printing layer 3.

The card substrate 1 is cut from a roll-shaped film made of PET (polyethylene terephthalate). Of course, the substrate 1 is not limited to PET, but may be any resin of the same material.

The pattern printing layer 2 is printed by an offset printing method with an arbitrary pattern coloring the card surface. The ink uses UV offset ink. Similarly, on the character / symbol printing layer 3, the management number area 12 and the precautionary note area 13 are printed by the offset printing method.

Here, the specific information area 11 will be described in detail.

The unique information area 11 contains the scratch card 1
0, the management number area 12 and the note area 13
The heat-sensitive layer 7 is formed as described above without providing the character / symbol printing layer 3 on this portion of the back surface of the card base 1.

The coating material used for the heat-sensitive layer 7 is a color-forming leuco dye, a 5% solution of polyvinyl alcohol, and a calcium carbonate solution, biphenyl A and stearic acid, and also a polyacrylamide resin and a melamine formaldehyde resin. It was created by mixing. Of course, it is also possible to mix only one kind of resin or use another alternative paint.

The heat-sensitive material of the heat-sensitive layer is indium I
It is also possible to form a low melting point metal such as n, bismuth Bi, tin Sn, and lead Pb by thin film molding such as vacuum deposition, sputtering, ion plating, electroless plating, and plasma deposition. The material used for the heat-sensitive layer 7 is
The material is not limited to the above materials as long as printing is possible with the thermal head.

Card substrate 1 which is a roll-shaped film
Usually, after the heat-sensitive layer 7 is formed at a predetermined position, the heat-sensitive layer 7 is punched into a shape of the scratch card 10 by a press using a predetermined die. However, the punching step may be another procedure according to the printing / printing method, as long as the function of the scratch card is not impaired.

The scratch layer 4 is formed to cover and cover the entire surface of the heat-sensitive layer 7 subsequent to the formation of the heat-sensitive layer 7 described above. The scratch layer 4 is formed excluding at least the management number area 12 and the note area 13 so that the scratch layer 4 can be seen from the back surface through the transparent protective film 6.
As a paint used for the scratch layer 4, aluminum powder, brass powder, copper powder, or the like, which is a concealing pigment, is used. The scratch layer 4 is formed by applying a scratch ink prepared by using a mixed solvent to such a pigment and a resin such as polypropylene or polystyrene which is easily cohesive and destructive.

On the copy-forgery-inhibited pattern printing layer 5, a copy-forgery-inhibited pattern showing a lining is printed on at least the entire surface of the scratch layer 4 by a screen printing method. If the transparency of the copy-forgery-inhibited pattern printing layer 5 is good, the management number area 12 and the note area 13 described above are used.
May be on the surface. After each layer described above is formed,
In order to protect each layer formed on the entire front and back surfaces of the scratch card 10, the transparent protective layer 6 is formed using a transparent UV ink.

A scratch card manufactured through such a process does not have hidden specific information. Therefore,
The card supplier that supplies the scratch card prints and creates the unique information using a thermal head when supplying the scratch card, and then supplies the card user to the card user. The unique information to be printed uses letters or numbers, or a combination of letters and numbers. Further, since it is assumed that the secret information to be concealed generally includes a personal identification number, the characters to be printed are alphabets, numerals, and any one of a mixture of alphabets and numerals.
It is generated and managed by changing using a single or a combination of conversion means such as random numbers.

As described above, since thermal printing is performed on the thermal layer by the thermal head, there is no unevenness in printing. Further, at the point of time when the thermal printing is performed, since the scratch layer has already been formed, the printed unique information cannot be visually observed. Therefore,
Confidentiality and security can be ensured in the scratch card creation process or the distribution process.

In the above description, the shape of the card and the like are illustrated, and the materials and materials such as the ink are described.

[0030]

As described above, according to the present invention, it is possible to obtain an effect that confidentiality and security can be maintained in the process of producing and distributing a scratch card.

The reason is that a heat-sensitive layer for printing unique information is formed inside the scratch layer, the structure of the scratch card is completed before printing, and then the heat-sensitive layer is provided to the heat-sensitive layer by a thermal head when the structure is provided for use. This is because information is printed. That is, unevenness of the printing is avoided by the thermal printing, and the printing is performed via the scratch layer, so that it is impossible to visually check the printing process.

[Brief description of the drawings]

1 shows an embodiment of the present invention; FIG.
It is A sectional drawing.

FIG. 2 is a rear plan view showing the embodiment in FIG. 1;

FIG. 3 is a cross-sectional view showing an example of the related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Card base 2 Pattern printing layer 3 Character / symbol printing layer 4 Scratch layer 5 Background pattern printing layer 6 Transparent protective layer 7 Thermal layer 10 Scratch card 11 Unique information area 12 Management number area 13 Precautionary note area

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2C005 HA01 HB04 HB12 JB27 JC01 KA11 2H113 AA01 AA06 BA05 BB07 BB22 BC00 BC07 CA34 CA39 CA46 DA04 DA25 DA47 DA48 DA57 FA09

Claims (4)

[Claims] At least one surface of a substrate of a card is provided with a printing layer for mainly printing characters and symbols, and a heat-sensitive layer for printing unique information by heat, further comprising a surface extending between the printing layer and the heat-sensitive layer. A scratch card having a scratch layer for covering at least the entire surface of a heat-sensitive layer. 2. A method for producing a scratch card having a structure as set forth in claim 1, wherein said scratch card is provided for use by using a thermal head for said heat-sensitive layer. A method for producing a scratch card, wherein information is produced by thermal printing. 3. The characteristic information according to claim 2, wherein the unique information to be thermally printed is constituted by a character obtained by changing any one of an alphabet, a numeral, and a mixture of the alphabet and the numeral according to a predetermined rule. How to create a scratch card. 4. The method according to claim 3, wherein the character changed according to a predetermined rule is generated using at least one of a mathematical expression and a random number.