JPS63822A - Production of magnetic card - Google Patents

Abstract

PURPOSE:To improve the coverage of a magnetic layer and the aesthetic characteristic of appearance by subjecting the coloring layer of a transfer sheet and the side of a card substrate provided with the magnetic layer and visible information part by superposing the visible information part, the coloring layer and the light transparent part in a pattern layer to superporition and hot pressing. CONSTITUTION:A protective layer 7, the pattern layer 6 and the coloring layer 5 are gravure-printed in this order on the surface of a PE terephthalate film 8 constituting a tentative base. The respective upper layers of the visible information part 4 are formed as the blanked state or non-printing part to allow the transmission of light. After the colored pattern transfer sheet 9 is obtd., a magnetic coating compd. 3 is coated at a prescribed width to the prescribed position of an over sheet 1b1. Such over sheet 1b1, a core sheet 1a1 in contact therewith, a core sheet 1a2 preliminarily provided with a picture pattern 2 printed by offset printing or silk screen printing, etc., on one face and 1b2 in contact therewith are stuck to the prescribed position and are hot pressed by a hot press 1. The PE terephthalate 8 is stripped after cooling and blanked to a desired size, by which the magnetic card is obtd.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method of manufacturing a magnetic card used as a credit card, a bank cash card, and various other identification cards.

[Technical background of the invention and its problems] Conventional magnetic cards have a core sheet made of an opaque synthetic resin such as polyvinyl chloride, and a transparent oversheet made of a synthetic resin such as polyvinyl chloride on the surface of the core sheet. It has an inverted structure and is provided with a magnetic layer for storing required information. This magnetic layer is usually provided on the oversheet, and a pattern such as a negative pattern is printed on the core sheet. Therefore, in conventional magnetic cards, the magnetic layer and [jt are usually provided independently of each other. For this reason, in conventional magnetic cards, the colors of the magnetic layer are limited (
Moreover, since the magnetic layer is provided on the oversheet, it is inevitably visible from the outside and hides the pattern, so there is a big limit to improving the appearance from a design standpoint.

In order to solve these problems with conventional magnetic cards, a colored layer containing a pigment such as titanium white is formed on the magnetic layer to hide the color of the magnetic layer, and then a pattern layer is placed on top of it. A knob method has been proposed to form (
JP-A No. 54-73608).

However, the conventional method improves the efficiency of the manufacturing process and obtains ri! 7. However, it is still not completely satisfactory in terms of improving the hiding properties of the magnetic layer in the magnetic card and the aesthetics of the entire card.

Furthermore, in conventional magnetic cards, Ml in the card
If a visual information section is provided separately, one with excellent design will be provided.
In order to do so, there was an agreement.

[Summary of the invention]

The present invention has been made in view of the above-mentioned points, and has excellent concealment properties and aesthetic appearance of the magnetic layer without affecting the integrity of the magnetic properties through a relatively simple process. 1゛1 to provide knob method to obtain magnetic card
It has been the target.

A further object of the present invention is to provide a method for obtaining a magnetic card that gives the impression that the visible information section provided in the card is vividly 77 sharp.

The magnetic card manufacturing method of the present invention according to the first aspect is characterized by including the following steps.

(b) A transfer sheet is formed by laminating, in this order, a pattern layer having a light-transmitting portion and a colored layer having a light-transmitting portion in a portion corresponding to the light-transmitting portion on a transfer sheet base material. (b) forming a magnetic layer on the entire surface or a part of the card base; (c) forming a 11 inkstone information part on a part of the surface of the card base on which the magnetic layer is formed; (d) forming the blue layer side of the transfer sheet obtained in step (a) and the magnetic layer and visible information portion of the card base material obtained in steps (b) and (c); (e) integrating the above-mentioned side by hot pressing in such a manner that the information part, the colored layer, and the light-transmitting part in the pattern layer are laminated; (e) the transfer sheet base; [Peeling the material] process.

Furthermore, the method for manufacturing a magnetic card of the present invention according to the second aspect is characterized by including the following steps.

(b) Ti having a light-transmitting part on the transfer sheet base material
(b) forming a transfer sheet by laminating, in this order, a colored layer having a light-transmitting portion in a portion corresponding to the light-transmitting portion, and a magnetic layer, respectively; (c) a step of forming a visible information portion on the colored layer side of the transfer sheet obtained in the step (a) and a visible information portion of the card base material obtained in the step (b); the visible information portion and the colored layer;
A step of integrating the colored layer and the light transmitting portion provided on the magnetic layer by stacking them and heat pressing them; (d) a step of peeling off the transfer sheet base material.

Furthermore, in a method for manufacturing a magnetic card according to another aspect of the present invention, a magnetic layer and a visible information section are provided on one surface of an oversheet constituting a card base material, and then the surface of the visible information section is exposed to light. A partially laminated body is formed by sequentially laminating a colored layer and a patterned layer so as to form a transparent part, and the resulting partially laminated body is either subjected to heat press processing once or [without heat press processing]. It is characterized in that it is integrated by overlapping and hot pressing with other oversheets and core sheets that constitute the card base material.

[Embodiments of the invention]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings and in comparison with a conventional example.

FIG. 2 is a cross-sectional view showing the laminated structure of a conventional magnetic card. The magnetic card 1 has a pair of core sheets la made of opaque synthetic resin, such as vinyl chloride, and a transparent overcoat made of the same material on both sides of laz. Sheet 1b 21
It is constructed by laminating and overturning B2. Furthermore, a pattern or visible information area 2 is provided in advance with printing ink on the surfaces of the oversheets 1b and 1b2 that are in contact with the core sheets 1a and 1a2, respectively, and a part of the surface of the oversheet 1b1 is provided with a magnetic field. Layer 3 is provided.

On the other hand, FIGS. 1A and 1B show two representative examples of the laminated structure of a magnetic card that can be processed using the method of the present invention.

In FIG. 1A, the magnetic card 1 is made by laminating oversheets 1b and 1b2 on both sides of a pair of core sheets la and la2 that are bonded to each other. It is also similar to conventional magnetic cards that a pattern 2 made of printing ink is provided between the cards as necessary.

Note that at least the oversheet lb1 mentioned above is made of thermoplastic resin.

The core sheet and oversheet 1b2 are preferably made of thermoplastic resin, but may also be made of thermosetting resin or paper. In the present invention, the term "substrate with a thermoplastic layer 1" includes such a substrate in which only the surface layer is made of a thermal i+J plastic resin.

In the example of FIG. 1A, the oversheet 1 forming the surface
A magnetic layer 3 is embedded in a part of b1, and an oversheet 1 that corners this magnetic layer.
The magnetic layer 3 is covered with an oversheet 1b, and the second layer is a colored layer 5 made of stamp ink or the like.
A pattern layer 6 and a protective layer 7 made of transparent synthetic resin are provided in this order.

Each upper layer of the visible information section 4 is in a punched state or a non-sealed section, so that it is in a state of l=&i with a light-transmissive layer. Although the protective layer 7 is not essential to the magnetic card of the present invention, it is preferable in order to prevent fading of the colored layer 5 and pattern layer 6 due to wear and increase the smoothness of the surface of the magnetic card.

Furthermore, the colored layer 5 also serves as an adhesive layer, so that the thickness of the card can be made thin.

FIG. 1B shows another example of the magnetic card of the present invention, in which the magnetic layer 3 has an oversea 1-1 b
Figure 1A except that it is provided on the entire surface of Figure 1A.
(exactly the same as the example) l.

J+ of the old 1st layer in the magnetic card of the present invention? For example, the following is the case.

Core sheet 1a, 1a,): 200-300
μm Open-1-1b.

1b: 50-130μm Magnetic layer 3: 3-20μm
m visible information part 4:1 45μm
Colored layer 5; 2-15
μm pattern layer 6 2 1~
10μm J layer 7: 0.5
~3pm Dilute color layer, pattern layer, protective layer: 1° thickness 23.5~28μm The thickness of the core sheet and oversheet is not so strict, and the thickness of the substrate obtained as a laminate of these The number of core sheets can be increased as necessary to increase the strength. The lower limit of the thickness of the colored layer 5, the pattern layer 6, and the protective layer 7 is limited by the robustness, the concealability of the magnetic layer 3, the clarity of the pattern, etc., and the upper limit is limited by the magnetic properties such as read output or printing properties. limited in terms of - [- If the thickness is in the range described above, the decrease in magnetic properties is tolerable in practice.

Note that the colored layer 5 itself may have a laminated structure. Furthermore, an anchor coat layer (not shown) may be provided between each laminated layer in order to increase adhesive strength.

The method according to the present invention will be explained by taking the above-mentioned magnetic card as an example.

According to the first method, as shown in FIG. 3, first, a protective layer 7 is applied to the surface of a polyethylene terephthalate film 8, which is a support for rice, by applying, for example, an acrylic resin varnish that is highly durable and has pressability. is applied by gravure printing (plate depth 20 μm), and in addition to this protective layer, pigments or dyes of the desired hue are dissolved in a liquid medium together with a binder made of any natural or synthetic resin, such as polyamide resin. Or, by gravure printing (plate depth 25 μm) using dispersed colored ink, characters, marks,
A pattern layer 6 consisting of a ground pattern or the like is provided.

When providing a pattern layer, offset printing or silk screen printing can also be used using an acrylic resin or the like as a binder. Next, a colored layer 5 containing metal powder is similarly applied on the pattern layer 6 with a gravure stamp.

The colored layer 5 is printed at a plate depth of 40 to 50 μm using, for example, gravure ink containing metal powder that has a high hiding power for the desired color.
It is removed by gravure printing several times. The metal powder contained in the young layer can be appropriately selected depending on the desired appearance, but in particular, A1, Cu −, Au %
Ag, brass, or a combination powder thereof is preferably used. Furthermore, other pigments or dyes can be contained as needed. For example, when a colored layer is formed using AI powder, the following composition is preferably used for gravure ink.

Copolymer of methyl methacrylate and butyl methacrylate and copolymer of vinyl chloride and vinyl acetate
13 to 16 layers? 6 Aluminum powder (usually in base form to prevent ignition) 10
~12i amount % wilt imparting agent (condensate of allylsulfonamide and formaldehyde) 4 iri total 0
6 face t, 1 2-3 weight 06 melt
As shown in No. 69 to 75, adhesiveness can be imparted to the colored layer by forming the colored layer using a thermoplastic resin as a binder, so the colored layer can also serve as the diluent layer. , This allows the card to be made thinner. Furthermore, since the thickness of the layer laminated on the magnetic layer can be reduced, the influence on magnetic properties can also be reduced.

1- In the process of creating the transfer sheet 9, the method of making the upper layer of the hI inkstone information part transparent is as follows.
In addition to the above-mentioned h method, there is a method in which a desired portion is punched out. That is, after forming the protective layer 7, the pattern layer 6, and the colored layer 6 on the entire surface of the polyethylene terephthalate film 8, the portions of the pattern layer 5 and the colored layer 6 that are to be made transparent are punched out and removed. This is the way to do it.

After transferring the colored pattern transfer sheet 9 in this way, separate the oversheet 1 that will become a part of the magnetic card.
Magnetic coating at the specified position of b1 with the specified width? -[3] to obtain an oversheet 1bl provided with a magnetic layer as shown in FIG. 4A. Another means of providing the magnetic layer 3 on the oversheet is to use a thermoplastic resin (for example, vinyl chloride/vinyl acetate copolymer) supported on a polyethylene terephthalate film 12 as a temporary support, as shown in FIG. 4B. A structure as shown in FIG. 4A can also be obtained by pasting the thermally transferable magnetic layer 3b as the main binder at a predetermined position on the oversheet 1bl using the heat press 11 and peeling off the polyethylene terephthalate film 12. can get.

An oversheet 1b1 on which this magnetic layer 3 is applied, a core sheet 1a1 in contact with this, a core sheet 1a 2 on which a pattern 2 previously printed by offset printing or silk screen printing, etc. is provided on one surface, and a core sheet 1 in contact with this.
b2 is pasted at a predetermined position as shown in FIG. 5A, and heat press processing is performed using the heat press 11. Heat press conditions are, for example, temperature 100-200°C, pressure 15-35kg.
/cd, time 5-25 minutes, preferred specific example is lH degree 15
The temperature was 0°C, the pressure was 25 kg/cjG, and the time was 15 minutes. After that, maintain pressure F1? The synthetic resin laminate 13 shown in FIG. 5B is obtained by cooling the mixture to room temperature as slowly as possible over a period of, for example, 20 minutes or more. At this time, by making at least the oversheet 1-1b made of thermoplastic resin, the magnetic layer 3 is embedded in the oversheet 1b1 and becomes flush with the surface of the oversheet 1b1.

Next, the visible information portion 4 is formed on the oversheet lb according to a conventional method such as offset printing or silk screen printing.

On the thus obtained synthetic resin laminate 13 shown in FIG. 5B, the previously obtained colored pattern transfer sheet 9 is placed at a predetermined position as shown in FIG. 3a and the surface of the transfer sheet 9 that has the colored layer 5 are in contact with each other, and then they are bonded together so that a light-transmitting layer is laminated on the L layer of the visible information section 4, using a hot press. Then, heat pressing is performed again, for example, at a temperature of 150° C., a pressure of 25 kg/cd, and a time of 15 minutes. After cooling, the polyethylene terephthalate film 8 is punched out into a desired size to obtain the magnetic card of the present invention shown in FIG. 1A.

In the above method, if the magnetic layer 3 is provided on the entire surface of the oversheet layer 1b at the stage shown in FIG. 4, the magnetic card of the present invention shown in FIG. It will be done.

In the second method, a thermoplastic resin is first applied to the colored layer 5 of the colored film-like transfer sheet 9 (Fig. 3) obtained in the first method, except for the part where the visible information area is to be formed. A magnetic paint 3 serving as a main binder is applied by roll coating to obtain a colored patterned magnetic sheet 14 as shown in FIG. Next, as shown in FIG. 8, in contact with the colored layer 5 of the colored patterned magnetic sheet 14, an oversheet 1b1 and a core sheet l are sequentially formed.
a1, Fant 1a with printing ink pattern 2 on the negative side
Then, the oversheet 1b2 is laminated at a predetermined position IN, and these are pressed by heat press 10, for example, 7111
The magnetic card of the present invention shown in FIG. 1B is prepared by hot pressing under the conditions of 150'C1 pressure of 25 kHz/cd for 15 minutes, and after cooling, the polyethylene terephthalate film 8 is peeled off.

In this second method, the magnetic card shown in FIG. 1A can be obtained by partially applying the magnetic paint 3 to predetermined positions of the colored layer 5 of the colored pattern transfer sheet 9 in the step shown in FIG.

As another aspect of the present invention, the oversheet 1b
1, a magnetic layer 3, a visible information section 4, a colored layer 5, a pattern layer 6, and a protective layer 7 are sequentially formed by coating or the like to obtain a partial laminate;
A core sheet 1 a + is obtained by heat-pressing or not processing this once.

The magnetic card shown in FIG. 1A or B can also be obtained by finally hot pressing together with 1a, oversheet 1b2, or a hub L-nosed assembly thereof.

It is clear that the magnetic card according to the invention can be manufactured by knob methods other than those described above.

The method may be one in which each layer of the laminated structure shown in FIG. 1A or FIG. 1B is sequentially laminated by coating or thermal transfer, or partial bonding of two or more layers of these laminated structures, e.g. Above laminate 9.13.1
4, etc., and these partial connections may be joined by means of hot pressing. Therefore, there are many variations depending on how the partial laminates are formed and how they are combined.

〔Effect of the invention〕

According to the method of the present invention, a magnetic card can be efficiently mounted using simple means.

In addition, since the magnetic card according to the present invention has a colored layer containing metal powder on the magnetic layer, the magnetic layer is effectively hidden and has excellent aesthetics.
It has a high-quality and luxurious feel, and the presence of such a colored layer does not adversely affect magnetic properties. Furthermore, in the magnetic card according to the present invention, the visible information section is provided on the lower layer side of the colored layer as described above, and the upper corner of each layer of the visible information section is transparent, so that the visible information section is vividly displayed. It has the excellent effect of giving a standing impression.

[Brief explanation of the drawing]

The drawings are all cross-sectional views for conceptually explaining the laminated structure of the magnetic card or its manufacturing process.
Figures A and B are examples of magnetic cards according to the present invention, Figure 2 is examples of conventional magnetic cards, Figures 3, 4A, 5B, and 7
The figure shows an intermediate laminate for manufacturing magnetic cards according to the present invention;
FIG. 4B, FIG. 5A1, FIG. 6, and FIG. 8 are sectional views each illustrating one step of manufacturing a magnetic card according to the present invention. DESCRIPTION OF SYMBOLS 1... Magnetic card, 1a, 1a2... Coanthus, lb, lb2... Oversheet, 2... Printed pattern, 3... Magnetic layer, 4... Visible information section, 5... Colored layer, 6... Pattern layer, 7... Protective layer. Applicant's agent Sato -O No. 1 Port A No. 1 Figure 8

Claims (1)

[Claims] 1. A method for manufacturing a magnetic card, which includes the following steps. (b) A transfer sheet is formed by laminating, in this order, a pattern layer having a light-transmitting part and a colored layer having a light-transmitting part in a part corresponding to the light-transmitting part on a transfer sheet base material. (b) Forming a magnetic layer on the entire surface or a part of the card base material; (C) Forming a visible information part on a part of the surface of the card base material on the side where the magnetic layer is formed. (d) the step (
The colored layer side of the transfer sheet obtained in step (a) and the side on which the magnetic layer and visible information section of the card base material obtained in steps (b) and (c) are provided are connected to the visible information section. (e) a step of peeling off the transfer sheet base material; a step of integrating the colored layer and the light-transmitting portion in the pattern layer by stacking them and hot pressing; and (e) peeling off the transfer sheet base material. 2. The method according to claim 1, wherein the colored layer in step (a) also serves as an adhesive layer. 3. A method for manufacturing a magnetic card, characterized by including the following steps. (b) Transfer by laminating, in this order, a pattern layer having a light-transmitting part, a colored layer having a light-transmitting part in a part corresponding to the light-transmitting part, and a magnetic layer on the transfer sheet base material. (b) forming a visible information portion on at least a portion of the card base material; (c) forming the colored layer side of the transfer sheet obtained in step (a) above and the step (b) ) The side on which the visible information section of the card base material obtained in step 2 is provided is stacked so that the visible information section, the colored layer, and the light transmitting section provided on the colored layer and the magnetic layer are laminated. and (d) a step of peeling off the transfer sheet base material. 4. The method according to claim 3, wherein the colored layer in step (a) also serves as an adhesive layer. 5. A magnetic layer and a visible information section are provided on one side of the oversheet constituting the card base material, and then a colored layer and a pattern layer are sequentially laminated so that the surface of the visible information section becomes a light-transmitting section. A partial laminate is formed by doing this, and the resulting partial laminate is laminated with other oversheets and core sheets constituting the card base material, either through heat pressing or without heat pressing. A method for producing a magnetic card, characterized in that the magnetic card is integrated by heat pressing. 6. The method according to claim 5, wherein the colored layer also serves as an adhesive layer.