JPH11120555A - Manufacture of magnetic card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently manufacture it economically in a short process by pre- cutting off card base material to a used size, providing a magnetic recording layer on the whole front/back surfaces of the card base material, preparing a white card provided with a shield layer on the magnetic recording layer and printing a pattern on the white card. SOLUTION: The magnetic layer 3 are provided on both surfaces of the card base material 2 pre-cut off to the used size, and the white card provided with the shield layers 4 on the magnetic recording layers 3 is prepared. Further, decorative layers 5 such as a character, the pattern, etc., are provided on the shield layers 4 at need, and protection layers 6 for protecting the decorative layers 5 are provided on the most surfaces. Thus, since the method preparing the white card is adopted, the time from an order to delivery is greatly reduced, and further, since temporary sticking, pressing, punching processes of an oversheet and a magnetic tape are omitted, productivity is improved greatly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a magnetic card such as an ID card, a cash card, or a credit card, which has a magnetic recording layer on the entire front and back of the card.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No.
Japanese Patent Application Publication No. 189754 describes a magnetic card in which a magnetic recording layer is provided over the entire surface and the entire magnetic recording layer is covered with a concealing layer.

In this magnetic card, a conventional magnetic card has a stripe-shaped magnetic recording layer, but the magnetic recording layer surely corresponds to the position of a magnetic head of a magnetic recording device or a reading device. It has been devised in order to improve the necessity of complicated work which must be accurately provided at a predetermined position of a magnetic card.

[0004]

Such a magnetic card having a magnetic recording layer on the entire surface of the card has a pattern on the surface even if the position where the pattern is to be printed on the surface is shifted during card manufacturing. The card obtained by cutting it in alignment with the printing is not likely to be unable to be recorded by the magnetic recording device or read by the reading device.

[0005] However, in order to manufacture the magnetic card, a long process must be performed as described below. Therefore, there has been a demand for a method of manufacturing a magnetic card having a magnetic recording layer on both sides of the card in a shorter process and economically efficiently. The present invention has been made in view of such circumstances, and an object of the present invention is to provide a method for manufacturing a magnetic card having magnetic recording layers on both sides of the card in a shorter process and economically efficiently.

[0006]

Means for Solving the Problems In order to solve the above problems,
The production method of the present invention includes a step of cutting a card base material into a size to be used, a step of providing a magnetic recording layer on the entire front and back surfaces of the card base material, and a step of providing a concealing layer on the magnetic recording layer. It is characterized by having.

Here, a conventional manufacturing method will be described. FIG. 9 shows a flowchart of a conventional manufacturing process of a magnetic card having magnetic recording layers on both sides. First, a full-surface magnetic coat oversheet on which pattern printing and silk OP printing on the outermost surface have been performed, a card substrate (center core) on which pattern printing has been performed, and a magnetic recording layer on the back surface are provided. Prepare an over-seat that has been cut. Then, after temporarily attaching these (positioning),
The whole is heat-sealed by a hot press.

After performing a quality inspection (large-format inspection), the magnetic card cut into a predetermined size and cut into a predetermined size is subjected to a primary inspection, a magnetic output inspection,
After post-processing and secondary inspection, it is packed and delivered. As described above, in the conventional method, the magnetic card is manufactured from a large format, and is punched to a predetermined size. That is,
The conventional method involves a long process of large-size material → printing → temporary tension → hot press → punching, so that it took time from receiving an order to delivery. In addition, over-sheets and magnetic tapes with temporary know-how are considered difficult,
There are hot press and punching processes. Therefore, there has been a demand for an improvement in the production efficiency of such a magnetic card.

According to the present invention, there is provided a white card in which a card base material is cut in advance to a size to be used, a magnetic recording layer is provided on the entire front and back surfaces of the card base material, and a concealing layer is provided on the magnetic recording layer. (A non-printed card) is prepared, and a picture is printed on the white card.

According to such a manufacturing method, a magnetic card can be manufactured in a short process, and the time from order receipt to delivery can be greatly reduced.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method for manufacturing a magnetic card according to the present invention will be described in detail. FIG. 1 shows a flowchart of the manufacturing method of the present invention. That is, according to the present invention, a magnetic recording layer is provided on both sides of a card base material that has been cut into a size to be used in advance, and a white card having a concealing layer provided on the magnetic recording layer is prepared. A manufacturing method characterized by printing a picture or the like.

The magnetic card thus manufactured is
As shown in FIG. 2, a magnetic recording layer 3 is provided over the entire front and back surfaces of the card base 2, and the magnetic recording layer 3 is covered with a concealing layer 4. Further, on the concealing layer 4, a decoration layer 5 such as a character and a picture is provided as needed, and a protective layer 6 is provided on the outermost surface to protect the decoration layer.

The card base material 2 includes polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, acrylonitrile-styrene copolymer, polycarbonate, biodegradable plastics and polyethylene terephthalate-G,
One type of resin selected from the group consisting of polystyrene and polymethacrylate can be given.

Of these, thermoplastic resins such as polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, and polycarbonate, and biodegradable plastics are preferably used. Further, the card base material 2 is not limited to a single-layer structure. For example, a two-layer structure in which two oversheets are laminated may be used, or a core sheet may be further laminated between the two oversheets. Or a three-layer structure
It can also be composed of layers or more, and can be appropriately selected according to the method in the manufacturing process and the manufacturing efficiency. When the base material has a structure of two or more layers, each layer can be laminated by heat fusion or via an adhesive as needed. The thickness of the substrate is preferably about 0.7 mm in terms of card specifications.

The magnetic recording layer 3 can be formed by a known transfer method or coating method.
It is preferable to set it to about 0 to 20 μm. As the magnetic composition constituting the magnetic recording layer, a known magnetic composition in which magnetic powder is dispersed in a resin binder can be used.
As such a magnetic composition, a vinyl chloride-vinyl acetate copolymer and polyurethane are mixed in a ratio of 0: 100 to 30:70.
The mixed resin containing at the ratio of
Magnetic powder = 20: 80 to 40:50 may be included.

The above magnetic composition comprises methyl ethyl ketone,
After dissolving or dispersing in an organic solvent such as toluene, cyclohexanone or ethyl acetate, it can be applied by a coating method. When a magnetic composition dissolved or dispersed in such an organic solvent is applied to a vinyl chloride sheet by a coating method to form a magnetic recording layer on a card substrate, the organic solvent resistance of the vinyl chloride sheet is low. Those which are high and have excellent heat resistance are preferred.

The concealing layer 4 conceals the magnetic recording layer.
It can be formed by printing using an ink having a high hiding power of a desired color. The concealing layer can be formed by performing overprinting several times, and can be formed by overprinting a plurality of colors to enhance concealment. The thicker the concealing layer is, the more excellent the concealing property of the magnetic recording layer is. However, the thicker the concealing layer is, the lower the magnetic output is, and the more difficult it is to write and read information. The thickness of the concealing layer that is excellent in the concealing property of the magnetic recording layer and can secure a sufficient magnetic output is different depending on the difference in the holding power of the magnetic recording layer and the concealing property of the ink used for the concealing layer, Usually, about 1 to 4 μm is preferable.

The material constituting the concealing layer 4 includes:
For example, a silver ink prepared by dispersing aluminum powder described in JP-A-3-147516 in a binder resin can be used. The decorative layer 5 can be formed by printing a character, a pattern, or the like by a silk-screen printing, a gravure printing, an offset printing, or the like. However, in order to form a decorative layer having a uniform thickness and no color unevenness, a silk screen Printing and offset printing are preferred.

Heretofore, magnetic cards having a stripe-shaped magnetic recording layer on the back surface have been widely used in Japan and overseas. On the other hand, since the magnetic card manufactured by the manufacturing method of the present invention has the entire surface magnetic recording layer on the front and back surfaces, it is not necessary to further have a stripe-shaped magnetic recording layer on the back surface. In order to prevent this, it is also preferable to print a dummy magnetic recording layer on the back surface of the magnetic card.

The protective layer 6 is also silk-screen printed,
It can be formed by a printing method such as gravure printing or offset printing and a printer. As an example of the printer, a sublimation transfer printer (manufactured by Dai Nippon Printing Co., Ltd., product CP
510 and CPX10000).

It is necessary that the protective layer has a function of protecting the concealing layer and the decorative layer, and has a property of being able to see through these layers. For example, it is preferable to use a transparent ink, preferably using a vinyl chloride-vinyl acetate copolymer, polyurethane, polymethacrylate, nitrocellulose, polyester or the like as a binder, and the thickness is preferably about 1 to 4 μm.

A decoration layer and a protective layer can be formed on the back surface of the magnetic card in the same manner as the front surface. The magnetic card according to the manufacturing method of the present invention manufactured as described above can be widely used as an ID card, a cash card, a credit card, and the like.

[0023]

EXAMPLES The present invention will be described in more detail with reference to the following Examples, but it should be understood that the present invention is by no means restricted thereto, and that design changes can be made within the scope of the present invention. Example 1 (Preparation of White Card) A vinyl chloride resin sheet having a size of 60 cm × 40 cm and a thickness of 0.72 mm was prepared, and a mixed resin containing a vinyl chloride-vinyl acetate copolymer and polyurethane in a ratio of 20:80 was prepared. As a binder, a magnetic composition obtained by mixing at a ratio of binder: magnetic powder = 30: 70 and dispersing the mixture in ethyl ethyl ketone is coated on the front and back surfaces of the vinyl chloride sheet to a thickness of 15 μm by a coating method. The magnetic recording layer 3 is provided by coating.

Next, 36 parts by weight of a polyvinyl chloride resin,
A concealing ink having a composition of 4 parts by weight of aluminum powder having an average particle diameter of 3 μm and 60 parts by weight of a solvent is printed on the magnetic recording layer 3 by silk screen printing so as to have a thickness of 2 μm. 4 can be provided.
FIG. 3 is a sectional view of the white card obtained as described above.

Example 2 (Preparation of Magnetic Card) Using the white card obtained in Example 1, a pattern is printed on the upper surface side of the concealing layer on the card by offset printing to form a decorative layer 5. . Similarly, predetermined characters and patterns can be printed on the back surface to form the decorative layer 5.

Thereafter, the protective layer 6 is formed by printing a transparent ink made of a vinyl chloride-vinyl acetate copolymer on the entire front and back surfaces of the card by silk screen printing so as to have a thickness of 2 μm. Magnetic cards can be manufactured. FIG. 4 is a perspective view of the magnetic card obtained as described above.

Example 3 A white card was produced in the same manner as in Example 1 except that the card base 2 was formed by laminating two core sheets 2a and 2b. FIG. 5 is a cross-sectional view of the obtained white card.
Shown in

Example 4 Using the white card obtained in Example 3, on the upper surface side of the concealing layer on the card, a pattern is printed by offset printing to form a decorative layer 5. Similarly, predetermined characters and patterns can be printed on the back surface to form the decorative layer 5.

Thereafter, the protective layer 6 is formed by printing a transparent ink composed of a vinyl chloride-vinyl acetate copolymer on the entire front and back surfaces of the card by silk screen printing so as to have a thickness of 2 μm. Magnetic cards can be manufactured. FIG. 6 is a sectional view of the magnetic card obtained as described above.

Example 5 A white card was prepared in the same manner as in Example 1 except that the card base material 2 had a three-layer structure in which a core sheet 2c was further laminated between two oversheets 2a and 2b. Produced. FIG. 7 shows a cross-sectional view of the obtained white card.

Example 6 Using the white card obtained in Example 5, a pattern is printed on the upper surface side of the concealing layer on the card by offset printing to form a decorative layer 5. Similarly, predetermined characters and patterns can be printed on the back surface to form the decorative layer 5.

Thereafter, the protective layer 6 is formed by printing a transparent ink made of a vinyl chloride-vinyl acetate copolymer over the entire front and back of the card by silk screen printing so as to have a thickness of 2 μm. Magnetic cards can be manufactured. FIG. 8 is a sectional view of the magnetic card obtained as described above.

[0033]

As described above, according to the method for manufacturing a magnetic card of the present invention, a method of preparing a white card in advance is employed, so that the time from order receipt to delivery is significantly reduced as compared with the conventional method. Can be shortened.

In addition, since it is possible to omit the steps of temporarily attaching, pressing, and punching an oversheet or a magnetic tape, which has conventionally been difficult because of a lot of know-how, the production efficiency can be greatly improved and the shorter process can be achieved. A magnetic card having magnetic recording layers on both sides of the card can be manufactured economically and efficiently.

Furthermore, since the back surface of the magnetic card can also be a magnetic concealment card, the design of the back surface and the degree of freedom in design are improved.

[Brief description of the drawings]

FIG. 1 is a flowchart of the manufacturing method of the present invention.

FIG. 2 is a sectional view of a magnetic card obtained by the manufacturing method of the present invention.

FIG. 3 is a cross-sectional view of a white card obtained by the manufacturing method of the present invention.

FIG. 4 is a perspective view of a magnetic card obtained by the manufacturing method of the present invention.

FIG. 5 is a cross-sectional view of a white card obtained by a production method of the present invention using a base sheet having a two-layer structure of 2a and 2b.

FIG. 6 is a cross-sectional view of a magnetic card obtained by the manufacturing method of the present invention using a base sheet having a two-layer structure of 2a and 2b.

FIG. 7 is a cross-sectional view of a white card obtained by the manufacturing method of the present invention using a base sheet having a structure in which a center core 2c is further sandwiched between two oversheets 2a and 2b.

FIG. 8 is a cross-sectional view of a magnetic card obtained by a manufacturing method of the present invention using a base sheet having a structure in which a center core 2c is further sandwiched between two oversheets 2a and 2b.

FIG. 9 is a flowchart for manufacturing a magnetic card in which a magnetic recording layer is provided on both surfaces of a conventional card.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Magnetic card 2 ... Base sheet 2a, 2b ... Oversheet 2c ... Center core 3 ... Magnetic recording layer 4 ... Concealment layer 5 ... Decorative layer 6 ... Protective layer

Claims (5)

[Claims] 1. A method of manufacturing a magnetic card having a magnetic recording layer on both sides of a card, comprising: cutting a card base material into a size to be used; and providing a magnetic recording layer on the entire front and back surfaces of the card base material. Providing a concealing layer on the magnetic recording layer. 2. A method of manufacturing a magnetic card having a magnetic recording layer on both sides of a card, wherein the step of cutting the card substrate into a size to be used and the step of providing a magnetic recording layer on the entire front and back surfaces of the card substrate. A step of providing a concealing layer on the magnetic recording layer; a step of providing a decorative layer on the concealing layer; and a step of providing a protective layer on the concealing layer and the decorative layer. Production method. 3. The card base material is a resin selected from the group consisting of polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, acrylonitrile-styrene copolymer, polycarbonate, biodegradable plastics and polyethylene terephthalate. The method for manufacturing a magnetic card according to claim 1, comprising: 4. The method for manufacturing a magnetic card according to claim 1, wherein said concealing layer is made of a polyvinyl chloride resin containing aluminum powder. 5. The magnetic recording layer comprises a vinyl chloride-vinyl acetate copolymer and polyurethane in a ratio of 0: 100 to 30:70.
The method for producing a magnetic card according to claim 1, wherein the magnetic card comprises a binder and a magnetic powder at a ratio of 20:80 to 40:60.