JP4408337B2 - Magnetic card and method for manufacturing magnetic card - Google Patents

Description

【００２９】
【表２】

【００３０】
新ＪＩＳ（1998年版）に基づくカード特性や旧ＪＩＳ（1987年版）に基づくカード特性についても試験したが、実施例、比較例のいずれも規格値を満たすことが確認されてた。また、ＡＴＭ適性試験もいずれも基準を満たしていた。
【００３１】
【発明の効果】
上述のように、本発明の磁気カードでは、カードの層構成や製造工程の改善を図ることで、文字エンボスの耐熱試験によるカール量やエンボスへたりの低減を図ることが達成されている。
本発明の磁気カードの製造方法は、コアシートに直接に多色印刷することをせずに、多色印刷は転写印刷で設けることにし、コアシートに対しては接着性メジュウムインキの印刷を主体とした１〜２色の印刷をすることで２層のコアシートの使用を排除している。
コアシートに対する接着性メジュウムインキの印刷により、１回の低温プレスラミネート工程のみでラミネートが完了するためプレス工程が削減できる。
また、コア単層とし薄くできるため文字エンボスによるカール量低減を図ることができる。
【図面の簡単な説明】
【図１】 本発明の磁気カードを示す図である。
【図２】 磁気カードの製造工程を示す斜視図である。
【図３】 従来の磁気カードを示す図である。
【符号の説明】
１ 磁気カード
２，３ 磁気テープ
４ 文字エンボス
５ 位置合わせ用マーク
６ 転写フィルム
７，８ 印刷
１１ コアシート
１１ｍ 低温接着性のメジュウムインキ
１１ｇ 銀色の印刷
１２，１３ オーバーシート
１５ 隠蔽層
１６ 絵柄層
２１，２２ コアシート
２３，２４ オーバーシート[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a magnetic card and a method for manufacturing the magnetic card.
More specifically, the present invention relates to a magnetic card and a method of manufacturing the magnetic card that can reduce the curl amount of the card accompanying the embossing when embossing the embossed characters on the card surface.
Accordingly, the field of use of the present invention relates to the field of manufacture and use of magnetic cards.
[0002]
[Prior art]
In the case of a credit card, cash card, bank card, or the like, it has been conventionally performed to display the user name, membership number, expiration date, etc. on the card surface with embossed characters.
The embossed character embossing inevitably stresses the card because the character is raised by sandwiching the card between the male and female type rings and applying heat and strong pressure to deform the base material. In particular, the display contents of recent magnetic cards are complicated, and it is not uncommon to emboss a large number of lines (4 lines or more).
When curling a magnetic card with multi-row embossing causes inconvenience in an ATM (Automatic teller machine) machine and other handling, reduction of the curling amount is required.
[0003]
[Problems to be solved by the invention]
FIG. 3 is a diagram showing a conventional magnetic card manufacturing process. As shown in FIG. 3, a conventional magnetic card generally has a four-layer laminated structure of two-layer core sheets 21 and 22 and oversheets 23 and 24 covering both surfaces thereof.
The magnetic card manufacturing process is carried out by first printing the core sheet 7, 8 and then first hot pressing the core sheets 21, 22 and the oversheets 23, 24 at a high temperature.
Conventionally, two core sheets 21 and 22 are used in this way. Usually, a double-sided printing machine is not used for card printing, and there are many losses when printing on the front and back sides of the same substrate. It is reasonable to print the front and back sides on different substrates for reasons such as the number of colors printed on the front and back sides and the printing reserve ratio (rate for estimating the substrate more than the completed quantity as a reserve) also differ. Because it was.
[0004]
In general, it is recognized that as the core sheet becomes thicker, the subsequent embossing curl amount increases. Also, in the case of vinyl chloride, high temperature conditions are required to fuse the core sheet and oversheet, so high temperature and high pressure are also required when laminating with the subsequent oversheet in the same process. However, there is a problem that the quality is deteriorated such that the pattern to be transferred to the oversheet is broken.
Therefore, conventionally, after pressing the core sheet and the oversheet under a high temperature condition, a transfer film provided with a concealing layer and / or a printed pattern is placed on the surface oversheet surface and pressed under a low temperature condition. A method of transferring a printed pattern is employed.
Therefore, in such a conventional layer configuration, as the embossed line increases, the curl amount increases and the curl amount cannot be reduced.
Therefore, in the present invention, by solving the printing problem by a separate method, the core sheet is made into one sheet, the high temperature pressing process of the core sheet is eliminated, and the curl amount is reduced as much as possible, and the present invention is completed. It is a thing.
[0005]
[Means for Solving the Problems]
A first aspect of the present invention that solves the above problems is a magnetic card in which a transparent oversheet is coated on both sides of a single-layer core sheet and a magnetic tape is transferred to the surface of the core sheet. The medium ink is printed, and the adhesive medium ink containing the alignment mark and silver or other coloring material is printed on the back side, and the printing of one or two colors is performed, and one of the front and back oversheets Alternatively, the magnetic card has a transferred magnetic tape on both sides, and the front side oversheet has a transferred concealing layer and / or a printed pattern.
[0006]
In the above, if the adhesive medium ink has a characteristic of fusing the core sheet and the oversheet under a low temperature press condition of 130 ° C. or lower, low temperature pressing is possible, and the core sheet has a thickness of 0.4 mm or less. If there is, it is further effective in reducing emboss curl.
[0008]
The second of the present invention is the following steps (1) to (5):
(1) a step of printing an alignment mark on the surface side of the core sheet and printing an adhesive medium ink; (2) the alignment mark and silver or other coloring material on the back side of the core sheet; A process of printing an adhesive medium ink and further printing one or two colors;
(3) transferring the magnetic tape to the oversheet on at least one side of the transparent oversheet that covers both surfaces of the core sheet;
(4) The core sheet on which the adhesive medium ink is printed is sandwiched between both sides so that the magnetic tape of the transparent oversheet becomes the outer surface, and the surface side oversheet surface is further provided with a concealing layer and / or a printed pattern. A step of preparing a pre-press laminate by placing a film, and (5) a step of introducing a pre-press laminate between the mirror plates of a press machine and hot pressing the magnetic card. Is in the way.
[0009]
In the above, if hot pressing is performed under a temperature condition of 130 ° C. or less and a core sheet having a thickness of 0.4 mm or less is used, it is more effective in reducing emboss curl. Furthermore, it is possible to adopt a process in which the laminate before pressing is temporarily fixed and then introduced into a pressing machine, or the substrate of the transfer film is peeled off after hot pressing.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The present invention reduces the curl amount by embossing embossed characters on a magnetic card, and presses under a high temperature condition for thermally fusing the core sheet and the oversheet and a press under a low temperature condition for transferring the pattern to the surface oversheet. And it aims at reducing the number of processes by performing what was conventionally pressed twice with one press.
The card is characterized by a structure in which an oversheet is laminated on a single-layer core sheet. In addition, while reducing the core sheet thickness, the JIS standard value for the conventional card thickness is secured by increasing the oversheet thickness.
[0011]
A magnetic tape alignment mark and adhesive medium ink are printed on the front side of the core sheet, and the alignment mark and the adhesive medium ink colored in silver or other colors are printed on the back side, such as black and blue. It is configured to print a pattern mainly composed of letters, and then press laminate an oversheet onto which a magnetic tape is transferred together with a core sheet, and further transfer the pattern at the same time.
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a view showing a magnetic card of the present invention, FIG. 1 (A) is a plan view, FIG. 1 (B) is an exploded cross-sectional view taken along line AA of FIG. 1 (A), and FIG. FIG. 5 is a perspective view showing a magnetic card manufacturing process.
[0012]
As shown in FIG. 1A, the magnetic card 1 has a magnetic tape 2 on both the front and back sides and a region of character emboss 4 and is similar in appearance to a normal magnetic card. .
As shown in FIG. 1B, the core of the magnetic card 1 is composed of a single-layer core sheet 11. Whereas a conventional magnetic card uses two core sheets of about 0.28 mm, the present invention has a range of 0.4 mm to 0.3 mm, preferably about 0.35 mm to 0.38 mm. One thick core sheet is used.
A magnetic tape alignment mark (not shown) is printed on the front surface 11u and back surface 11d sides of the core sheet 11, and an adhesive medium ink 11m is printed on the entire surface.
[0013]
On the back surface 11d side of the core sheet 11, generally a silver print 11g is printed, and characters (not shown) such as usage method and membership rules mainly in black or blue are printed on the silver print surface. Since the silver printing is intended to impart adhesiveness as well as decoration, a printing material in which a silver colorant such as an aluminum paste is added to the low temperature adhesive medium ink is used. However, not limited to silver, of course, gold, white, or other coloring may be used. The film thickness after drying of the adhesive medium ink or silver printing may be about 1 to 10 μm.
[0014]
Oversheets 12 and 13 are laminated on both surfaces of the core sheet 11. In many cases, the conventional oversheet has a thickness of about 0.1 mm, but the oversheets 12 and 13 are made by reducing the thickness of the core sheet 11 in order to secure the card thickness in accordance with the JIS standard. Use a slightly thicker one.
When the oversheet is a vinyl chloride sheet as in the case of the core sheet, it can be heat-sealed as described above. However, in the magnetic card 1 of the present invention, the medium sheet 11m printed on the core sheet and the silver print 11g are bonded at a low temperature. It is a thing.
Magnetic tapes 2 and 3 are previously transferred to the outer surface side of both or one of the oversheets. On the outer surface of the oversheet 12, there is a concealing layer 15 such as silver, and a pattern layer 16 is provided thereon. The concealing layer 15 and the pattern layer 16 are obtained by transferring what is previously printed on the transfer film onto the oversheet surface at the same time as pressing.
[0015]
Next, based on FIG. 2, the manufacturing method of the magnetic card of this invention is demonstrated.
First, the magnetic tape alignment mark 5 is printed on the surface side of the core sheet 11, and further, a low temperature adhesive medium ink 11m is printed on the entire surface.
On the back surface 11d side of the core sheet 11, the alignment mark is printed on the entire surface in silver or the like 11g, and on it is printed in black or blue characters (not shown).
[0016]
For the oversheets 12 and 13, the magnetic tapes 2 and 3 are previously transferred in a separate process. While supplying the magnetic tape foil for transfer cut to a constant width of the standard value, a process of applying heat pressure to the oversheet is performed in advance. As the magnetic tape, a high coercive force or a low coercive force tape can be used depending on the purpose.
Although one magnetic card is shown in the figure, the hot pressing process is usually performed with multiple faces of about 4 to 60 faces, so several sheets of magnetic tape 2, 3 are provided on one oversheet. Has been transcribed.
[0017]
When the oversheet is pressed and stacked on the core sheet, the magnetic tape position is aligned with the alignment mark 5 printed on the core sheet first, and temporarily pressed to prevent the position from shifting, and then pressed. Temporary fixing is performed by fusing and fixing an appropriate number of locations between the oversheet and the core sheet with frictional heat using an adhesive or an ultrasonic welder.
At the time of hot pressing, a process of transferring the concealing layer and the pattern layer to the outer surface of the oversheet 12 is performed simultaneously. For this purpose, the transfer film 6 provided with the transfer pattern is supplied in advance between the oversheet 12 and the mirror plate of the press machine.
The transfer pattern and the card are also aligned based on the alignment mark 5 provided in advance. The substrate of the transfer film 6 is peeled and removed after pressing.
[0018]
The completed magnetic card 1 is issued with a display of an issuing company if necessary, a sign panel attached, magnetic encoding, and embossed character embossing at a predetermined position on the card. The embossing position of the credit card is defined in ISO 7811/3.
[0019]
<About embodiment regarding material>
(1) A white hard vinyl chloride sheet is preferably used for the core sheet, but may be polyethylene terephthalate, polycarbonate, or polypropylene resin as long as it is excellent in printability of low-temperature adhesive medium ink.
A PET-G (non-crystalline copolyester resin) sheet may be used.
(2) Although a transparent vinyl chloride sheet can be preferably used for the oversheet, polyethylene terephthalate, polycarbonate, polypropylene resin, and PET-G may be used in the same manner as the core sheet.
(3) Vinyl chloride / vinyl acetate resin or vinyl chloride / vinyl acetate / vinyl alcohol resin having a softening temperature of 60 to 80 ° C. can be suitably used for the low temperature adhesive medium ink.
[0020]
The magnetic card of the present invention must achieve the reduction in emboss curl amount and satisfy the original characteristic conditions required for the magnetic card.
The characteristics of identification cards including magnetic cards are defined in JIS X6301-1998. In addition to card dimensions, properties such as static bending strength, chemical resistance test, card edge burrs, adhesiveness or tackiness, delamination, card warpage, etc. are specified and may meet the standard value. Needed.
Regarding the warpage of the card after embossing, “When placing the embossed card before distribution on the surface plate with the convex side up, from the surface of the surface plate to any unembossed part of the surface on the convex side. The maximum value of the card must not exceed 2.5 mm, including the thickness of the card. ”(8.1.12)
Moreover, it is preferable that there is little embossing sag (a phenomenon in which the height of the character embossing is lowered due to heat or the like).
[0021]
The embossing curl and embossing after the heat test are not defined in JIS, but can be evaluated by the following test.
(1) Embossed curl Cards with 4 lines of character embossed, etc. are stored flat under the conditions of (1) 60 ° C x 1 hour and (2) 80 ° C x 1 hour. Measure under the conditions of JIS standard (8.1.12).
(2) Embossed cardboard embossed cards, etc., flatly stored under the conditions of (1) 60 ° C x 1 hour and (2) 80 ° C x 1 hour, and the embossed height after the test. The change is measured under the conditions of (8.1.12) of the JIS standard.
[0022]
【Example】
(Example)
An embodiment of the present invention will be described with reference to FIGS.
A white hard vinyl chloride sheet having a thickness of 0.37 mm is used as the core sheet 11, and the printing alignment mark 5 is printed on the surface side thereof, and then an adhesive medium ink having the following composition (manufactured by Showa Ink Industries Co., Ltd. “VAHS”) is used. Medium ") was printed by silk screen printing.
Also, the silver ink (“VAHS-Silver” manufactured by Showa Ink Industries, Ltd.) colored the above medium ink with aluminum paste is printed on the back side of the core sheet by silk screen printing, and then the surface is printed with acrylic ink ink on the surface. Printed text about how to use
The thickness of the adhesive medium ink and silver ink after drying was adjusted to 1 to 4 μm.
[0023]
<Ink composition>
Vinyl chloride / vinyl acetate / vinyl alcohol copolymer 20-25%
Vinyl chloride / vinyl acetate / maleic acid copolymer 5% or less cyclohexanone 40-45%
Aromatic hydrocarbon mixture 30-35%
(Softening temperature of vinyl chloride / vinyl acetate resin is 60-70 ° C)
[0024]
Next, two sheets of vinyl chloride oversheets 12 and 13 having a thickness of 0.20 mm, onto which the magnetic tape has been previously transferred, are not misaligned on both surfaces of the core sheet 11 with reference to the alignment mark 5. And then temporarily fixing the transfer film on which the pattern and the concealing layer are printed on the surface-side oversheet surface, and then introducing the laminate into a press machine to apply heat pressure (120 (° C., 25 kg / cm ² , 20 minutes).
When the base material of the transfer film 6 was peeled and removed, a multi-sided body of the magnetic card with the image transferred thereon was obtained. This was cut into individual cards to obtain the magnetic card 1 of the present invention.
[0025]
(Comparative Example 1)
A comparative example of the present invention will be described with reference to FIG.
As the core sheets 21 and 22, white hard vinyl chloride sheets having a thickness of 0.28 mm were used, and offset printing of alignment marks was performed on the core sheet 21 on the surface side. On the other hand, similarly to the core sheet 22 on the back surface side, silver-colored full-screen silk screen printing and offset printing of black characters and alignment marks were performed thereon.
[0026]
The non-printing surfaces of the core sheets 21 and 22 are faced to each other, and then, two core sheets 21 and 24 of vinyl chloride oversheets 23 and 24 having a thickness of 0.10 mm, onto which a magnetic tape has been previously transferred, are laminated in advance. Aligned on both sides of 22 with reference to the alignment mark so that the magnetic tape is not displaced, introduced into a press machine, and given hot pressure (145 ° C, 30 kg / cm ² , 20 minutes) It was press laminated together.
Further, after concealing the transfer film for concealment, the film was temporarily fixed, introduced into a press machine, and hot-pressed (120 ° C., 25 kg / cm ² , 20 minutes) to give a press laminate.
[0027]
Four lines of character embossing were performed on the magnetic cards obtained in the examples and comparative examples, and the embossed curl and embossing test were performed on the cards after embossing under the following conditions based on JISX6301-1998.
(1) Embossed curl Four rows of embossed cards are stored flat on each condition of (1) 60 ° C x 1 hour and (2) 80 ° C x 1 hour. Measure under the conditions of (8.1.12).
(2) The card embossed in 4 rows is embossed and stored flat under the conditions of (1) 60 ° C x 1 hour and (2) 80 ° C x 1 hour. Measure under the conditions of JIS standard (8.1.12).
[0028]
The test results according to the above are shown in Tables 1 and 2.
[Table 1]

[0029]
[Table 2]

[0030]
The card characteristics based on the new JIS (1998 version) and the card characteristics based on the old JIS (1987 version) were also tested, and it was confirmed that both the examples and the comparative examples satisfy the standard values. In addition, the ATM aptitude tests all met the standards.
[0031]
【The invention's effect】
As described above, in the magnetic card of the present invention, it is achieved to reduce the curl amount and the emboss sag by the heat test of character embossing by improving the layer structure and manufacturing process of the card.
The method for producing a magnetic card of the present invention does not perform multicolor printing directly on the core sheet, but multicolor printing is provided by transfer printing, and the core sheet is mainly printed with adhesive medium ink. The use of the two-layered core sheet is eliminated by printing one or two colors.
By printing the adhesive medium ink on the core sheet, the pressing process can be reduced because the lamination is completed by only one low temperature press laminating process.
Moreover, since it can be made thin as a single core layer, the curl amount can be reduced by character embossing.
[Brief description of the drawings]
FIG. 1 is a view showing a magnetic card of the present invention.
FIG. 2 is a perspective view showing a magnetic card manufacturing process.
FIG. 3 is a diagram showing a conventional magnetic card.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Magnetic card | curd 2, 3 Magnetic tape 4 Character embossing 5 Alignment mark 6 Transfer film 7, 8 Printing 11 Core sheet 11m Low temperature adhesive medium ink 11g Silver printing 12, 13 Oversheet 15 Concealing layer 16 Picture layer 21, 22 Core sheet 23, 24 Over sheet

Claims (8)

A magnetic card with a transparent oversheet coated on both sides of a single-layer core sheet and transferred with magnetic tape. The core sheet is printed with an alignment mark and adhesive medium ink, and the back side is aligned. The adhesive medium ink containing a mark for printing and silver or other coloring material is printed, and printed in one or two colors, and a transferred magnetic tape is provided on one or both sides of the front and back oversheets. A magnetic card having a transferred concealing layer and / or a printed pattern on the front side oversheet.   2. The magnetic card according to claim 1, wherein the adhesive medium ink has a characteristic of fusing the core sheet and the oversheet under a low temperature press condition of 130 [deg.] C. or less.   2. The magnetic card according to claim 1, wherein the core sheet has a thickness of 0.4 mm or less. The following steps (1) to (5);
(1) A step of printing a mark for alignment on the surface side of the core sheet and printing an adhesive medium ink;
(2) A step of printing the adhesive medium ink containing an alignment mark and silver or other coloring material on the back side of the core sheet, and further performing printing in one or two colors;
(3) transferring the magnetic tape to the oversheet on at least one side of the transparent oversheet that covers both surfaces of the core sheet;
(4) The core sheet on which the adhesive medium ink is printed is sandwiched between both sides so that the magnetic tape of the transparent oversheet becomes the outer surface, and the surface side oversheet surface is further provided with a concealing layer and / or a printed pattern. A step of placing a film to prepare a pre-press laminate,
(5) A process of introducing the laminate before pressing between the mirror plates of the press machine and hot pressing.
A magnetic card manufacturing method comprising: 5. The method of manufacturing a magnetic card according to claim 4 , wherein the hot pressing is performed under a temperature condition of 130 [deg.] C. or less. 5. The method of manufacturing a magnetic card according to claim 4 , wherein a core sheet having a thickness of 0.4 mm or less is used. 5. The method of manufacturing a magnetic card according to claim 4, wherein the pre-press laminate is temporarily fixed and then introduced into the press. 5. The method of manufacturing a magnetic card according to claim 4, wherein the substrate of the transfer film is peeled off after the hot press.

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