JPH0693301B2 - Optical card manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Object of the Invention [Field of Industrial Application] The present invention relates to an optical card.

In recent years, cards that store various types of information, such as ID cards, cash cards, and bank cards, have become widespread.

[Prior Art] It is necessary to record various information such as personal data and data of the issuing company on this kind of card, and at the initial stage, such information is recorded with visible characters or symbols. In addition, at the stage described later, it is recorded by an electric signal using magnetism, but it is necessary to prevent alteration and cope with an increase in the amount of information.

Therefore, recently, an optical card applying a laser technique has been developed. This optical card is equipped with an information recording medium having an optical information pattern having an optical reflection surface, and the optical reflection surface functions as a data pit or a guide track.
The data pits are detected by the laser based on the difference in optical reflection of the optical information pattern, and the information is read.

What has been conventionally adopted as a process for manufacturing such an optical recording medium or an optical card having such an optical recording medium is that the entire surface of a support made of a sheet having the same size as the card base material is deposited by vapor deposition. After forming a metal reflective film, after that,
By an etching method or a resist lift-off method, an optical information pattern is engraved on a metal reflective film in a portion which should be used as a recording medium, and a remaining portion which is not used as an optical recording medium is removed. The optical card is completed by bonding the support to the card base material.

[Problems to be Solved by the Invention] However, although the optical recording medium is usually provided on a part of the optical third, in order to manufacture the optical recording medium, the same size as the card substrate is required. The number of steps is to prepare a support for a single-wafer body, form a metal reflection film on the entire surface thereof, and leave a part of the metal reflection film on which an optical information pattern is to be formed and remove an unnecessary residual part. In addition to increasing the required time, there is much waste in terms of materials. Furthermore,
With respect to the remaining optical recording medium, it is considerably difficult to obtain the optical recording medium with few pinholes, which causes the cost of the optical card to increase. Moreover, it is difficult to improve the production efficiency if the optical recording medium is handled as a single sheet like the completed optical card.

The present invention has been made in view of the circumstances as described above, and it is possible to mass-produce an optical card, to obtain an optical recording medium without pinholes, and without waste of material. Moreover, it is an object of the present invention to provide a method for manufacturing an optical card, which requires less steps and time required for producing the optical card.

(B) Structure of the Invention [Means for Solving the Problem] To this end, in the method for manufacturing an optical card of the present invention, a light reflection film and a light having low light reflection property that covers the surface of the light reflection film are provided. A method of manufacturing an optical card, which comprises placing an optical recording medium comprising an information pattern layer between a card base material and a light-transmitting protective layer, the method comprising releasing a release-treated first support. A step of manufacturing an optical information pattern layer transfer medium in which an optical information pattern having low light reflectivity is formed on a mold-treated surface with multiple surfaces, and a light reflecting member in which a light reflecting film is formed on a second support. The step of separating the first support from the optical information pattern layer transfer medium, laminating the optical information pattern layer transfer member and the light reflecting member so that the optical information pattern and the light reflecting film overlap each other, and Forming an optical recording medium, wherein the optical information pattern layer is The optical recording medium in a state of facing the protective layer was laminated and bonded between the card substrate and the protective layer, then it is characterized in that cut into each individual card. Another method of manufacturing an optical card of the present invention is an optical recording medium comprising a light reflecting film and a light information reflecting low optical information pattern layer covering the surface of the light reflecting film, and a card substrate and a light transmitting medium. A method of manufacturing an optical card, which is positioned between a protective layer and a protective layer, wherein the release-treated surface of a first support is unrolled from a roll around which the first support is wound and subjected to release processing. And a step of manufacturing an optical information pattern layer transfer medium in which an optical information pattern having low optical reflectivity is formed on multiple surfaces, and light reflection is performed on a second support unrolled from a roll around which the second support is wound. A step of manufacturing a light-reflecting member having a film formed thereon, the first support is peeled from the optical information pattern layer transfer medium, and the optical information pattern layer transfer is performed so that the optical information pattern and the light reflecting film overlap each other. Laminating a member and a light reflecting member to form the optical recording medium Including the protective layer film between the protective layer wound from the rolled roll and the card substrate rolled out from the rolled roll of the card substrate, the optical information pattern layer is the protection It is characterized in that the optical recording media are laminated and adhered in a state of facing the layers and then cut into individual cards.

Hereinafter, details of the present invention will be described with reference to the drawings illustrating an embodiment.

First, an optical card, which is an object to be manufactured, will be described.

In FIGS. 1 and 2, 1 is an optical card. The optical card 1 comprises an optical recording medium 4 sandwiched between a card base material 2 and a protective layer 3 which are bonded together.

The card base material 2 guarantees the strength of the optical card 1. Such a card base material 2 may be paper, a synthetic resin plate such as PVC, or a thin metal plate. A visible pattern layer 5 for displaying visible information such as characters and figures on the card substrate 2
The magnetic recording layer 9 is displayed by printing or the like.

The protective layer 3 is made of a material having a high light transmittance such as a polycarbonate resin, an acrylic resin, or glass.
The optical recording body 4 includes a second support 6, a light reflecting film 7 formed thereon, and an optical information pattern layer 8 further thereon. The second support 6 includes a light reflecting film 7 and an optical information pattern layer 8
A film having excellent smoothness, which is made of a material such as polyester, is used because it functions as a support for supporting the.
The light reflection film 7 is vapor-deposited on the second support 6. The light reflecting film 7 is composed of a thin film made of a material having high light reflectivity, and examples of such materials include Al, Cu, Ag, Ni,
Cr, Zn, Sn, Ti and the like can be used. The light reflecting film 7 is formed by vapor-depositing the above materials on the second support 6.

In order to improve the smoothness of the second support 6 and the adhesiveness of the light reflection film 7, the second support 6 and the light reflection film 7 are provided.
You may interpose a sublayer between and. An optical information pattern layer 8 is formed on the light reflection film 7. The optical information pattern layer 8 is a layer of low light reflectivity having fine holes expressing data pits and guide tracks. Therefore, the light reflecting film 7 below is exposed at the portions of the fine holes to expose the data pits and guide tracks. In other portions, the light reflection film 7 is hidden by the light information pattern layer 8 having low light reflectivity.

This optical information pattern layer is printed, coated with a photographic emulsion and then exposed and developed, or a colored and low light-reflecting layer is formed and then etched or re-registered off. Are formed by subsequently coloring the layer patterned by etching or resist lift-off.

The optical information pattern layer 8 and the second support 6 and the light reflecting film 7 are adhered by a transparent adhesive layer 10 to form an optical recording medium 4, and the optical recording medium 4 thus formed is a transparent adhesive. The optical recording medium 4 is adhered to the protective layer 3 at a desired position by the layer 20, and the card base material 2 and the protective layer 3 are adhered to each other by the adhesive layer 11 during this time. .

A surface hardened layer 12 having a high hardness may be provided on the read side of the protective layer 3 in order to improve scratch resistance, either integrally with or separately from the protective layer 3.

Next, a method of manufacturing the above optical card will be described with reference to FIG.

First, the roll 2a of the card substrate 2, the roll 3a of the protective layer 3,
A plurality of rolls 6a of the second support 6 and a plurality of rolls 40a of the first support 40 are prepared (FIGS. 3A and 3B).
(C) (d)). The card base material 2 is fed out from the roll 2a of the card base material 2 and a predetermined card pattern is printed by the printing machine 21 in multiple faces (FIG. 3 (e)).

Further, the inner surface is coated with the adhesive 11 by the coater 22 (FIG. 3 (f)).

On the other hand, regarding the roll 6a of the second support 6, the roll 6a
The second support 6 having a narrow width is drawn out, and the light reflection film 7 is formed on one surface by the vacuum vapor deposition device 23 (FIG. 3 (g)). Next, a light-transmissive adhesive layer 10 is coated on the light reflection film 7 by a coater 24 (FIG. 3 (h)). Next, it is divided into tapes by the slitter 30 (FIG. 3 (i)). Next, the roll 40a of the first support 40
For, the first support 40 having a narrow width is unwound from the roll 40a, and the mold release treatment is performed on the entire surface by the coater 25 (third part).
Figure (j)). This release treatment is performed by applying a release treatment agent containing Si resin or the like as a main component on the first support 40. The optical information pattern layer 8 is formed on the release treated surface by the printing machine 26 or the like (FIG. 3 (k)). Next coater
A light-transmissive adhesive layer 20 is applied on the optical information pattern layer 8 by 27 (FIG. 3 (l)). Next, it is divided into tapes by a slitter 28 (FIG. 3 (m)). Then the first
The support 40 is peeled off from the optical information pattern layer 8 on the release treated surface (FIG. 3 (n)). The peeled first support 40 is wound around a roll 31.

Further, regarding the roll 3a of the protective layer, the film of the protective layer 3 is fed from the roll 3a and the outer surface is subjected to a surface hardening treatment by the coater 32 (FIG. 3 (o)).

In the card substrate 2, the protective layer 3, the second support 6 and the light reflecting film 7 and the optical information pattern layer 8 thus formed, the optical information pattern layer 8 is provided at a predetermined position of the protective layer 3 by the adhesive layer 20. Adhesive, and stacking on top of it, the light reflection film 7
And the second support 6 with the adhesive layer 10,
Further, the optical information pattern layer 8, the light reflection film 7 and the second support 6
In a state where the optical information medium 4 composed of
And the film of the card substrate 2 are attached (FIG. 3 (p)).

An optical card 1 is completed by cutting the aggregate of the optical cards 1 thus integrally bonded together into a large plate by a cutter (Fig. 3 (q)), and punching out each optical card unit (3rd). (Figure (r)).

[Operation] In the optical card 1 thus configured, the side of the protective layer 3 serves as the reading side, and the reading optical recording medium 4 is read from this reading side.
It is possible to read out the information by reading the presence or absence of the data pits by the incidence of the light on the basis of its reflectivity.

(C) Effect of the Invention In the optical card of the present invention, an optical recording medium having an information pattern with an expensive reflection film is not formed for each optical card by vapor deposition or etching, but an optical card is prepared with multiple faces. As a result of separating it, a large number of light-reflecting films are also prepared on a large-area support in a multi-faceted manner, and each of the optical recording media is cut out and used. It is possible to reduce the number of manufacturing steps and the time required.

Further, in the optical card of the present invention, the formation of the light reflecting film on the optical recording medium can be performed by using the roll-type roll body. When making a light-reflecting film with a sheet type,
Al vapor deposition costs 10 times or more as compared with the winding type, so that the present invention exerts a remarkable effect in terms of cost.

[Brief description of drawings]

Fig. 1 is a front view of the optical card, and Fig. 2 is II in Fig. 1.
-II sectional view and FIG. 3 are explanatory views showing an example of the manufacturing process of the optical card. 1 ... Optical card, 2 ... Card base material, 2a ... Roll, 3
...... Protective layer, 3a ... Roll, 4 ... Optical recording medium, 5 ...
Visible pattern layer, 6 ... second support, 6a ... roll,
7 ... Light reflection film, 8 ... Optical information pattern layer, 9 ... Magnetic recording layer, 10 ... Adhesive layer, 11 ... Adhesive layer, 20 ... Adhesive layer, 21 ... Printing machine, 22 …… Coater, 23 …… Vacuum deposition equipment, 24 …… Coater, 25 …… Coater, 26 …… Printing machine, 27 …… Coater, 28 …… Slitting machine, 31 …… Roll, 32 …… Coater, 40 …… First support, 40a ... Roll

Claims (2)

[Claims] 1. An optical recording medium comprising a light-reflecting film and a low-light-reflecting optical information pattern layer covering the surface of the light-reflecting film is located between a card substrate and a light-transmitting protective layer. A method for producing an optical card, comprising producing an optical information pattern layer transfer medium in which an optical information pattern having low light reflectivity is formed on multiple surfaces on a release-treated surface of a first support subjected to a release treatment. And a step of manufacturing a light reflecting member having a light reflecting film formed on a second support, and peeling the first support from the optical information pattern layer transfer medium to obtain the optical information pattern and the light. A step of laminating the optical information pattern layer transfer member and a light reflecting member so as to overlap the reflection film to form the optical recording medium, wherein the optical information pattern layer is opposed to the protective layer. Laminate and bond a recording medium between the protective layer and the card substrate And then cutting into individual cards, a method for manufacturing an optical card 2. An optical recording medium comprising a light-reflecting film and a low-light-reflecting optical information pattern layer covering the surface of the light-reflecting film is located between a card substrate and a light-transmitting protective layer. A method for manufacturing an optical card, wherein the optical information pattern of low light reflectivity is provided on the release-treated surface of the first support that has been released from a roll around which the first support has been subjected to release processing. And a step of manufacturing an optical information pattern layer transfer medium formed with multiple surfaces, and a light reflecting member in which a light reflecting film is formed on a second support unrolled from a roll around which the second support is wound. And a step of peeling the first support from the optical information pattern layer transfer medium, and laminating the optical information pattern layer transfer member and the light reflecting member so that the optical information pattern and the light reflecting film overlap each other. A step of forming the optical recording medium, comprising: Between the protective layer unwound from a wound roll and the card substrate unwound from a rolled roll of the card substrate, the optical information pattern layer faces the protective layer A method for manufacturing an optical card, comprising laminating and adhering recording media, and then cutting the individual cards.