JPH0433557Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an optical/magnetic card from which information recorded by magnetism and light is read out.

[Background technology and its problems]

Currently, bank cash cards, credit cards, and other ID cards for identifying registered customers are in widespread use in many other fields, but most of these cards use magnetic stripes as recording media. Therefore, when the amount of information for a customer increases, various data cannot be recorded on one card.

Therefore, an optical/magnetic card having an optical recording area capable of recording a large amount of data has been developed (Japanese Unexamined Patent Publication No. 58-500462).

Figures 1a and 1b show an example of such an optical/magnetic card, where C is a substrate made of plastic material, P is an optical stripe on which a bar code, etc. is recorded, and M is a magnetic card made of a magnetic material. It's striped.

This optical/magnetic card can write a large amount of information on the optical stripe P, which increases the card's identification ability.However, since the optical stripe P and magnetic stripe M are formed on one side of the substrate C, There is a problem that the area for writing the issuer and owner information and the signature field become narrow.

2a and 2b show an optical stripe P and a magnetic stripe M provided on the front and back surfaces of a substrate C, respectively.

In this case, the description on the card is almost the same as that of a conventional magnetic card, but the manufacturing process of the card becomes complicated and the cost of the card increases.

That is _, as shown in an enlarged cross-section _{of the} stripe portion in FIG. In order to adhesively fix the magnetic stripe M and also adhesively fix the tape consisting of the magnetic material layer M ₁ and the base layer M ₂ to the other side, the alignment of both tapes must be performed twice, and the machine for manufacturing the stripe. Since two sets of equipment are required, the yield is reduced and costs are increased.
In particular, the coating process consists of 3 layers including the reflective layer _P2 .
There are disadvantages in that it requires multiple times and production efficiency is also poor.

[Purpose of invention]

This invention was made in view of the above-mentioned circumstances, and is intended to provide an optical/magnetic card whose manufacturing cost is reduced by simplifying the manufacturing method.

[Summary of the idea]

This idea involves forming an optical recording layer by vapor-depositing or coating the base side of the magnetic tape with a photochromic material, and then bonding this recording stripe to one side of a transparent substrate. It consists of an optical/magnetic card.

Therefore, since the recording/reading portion of the card is composed of one stripe, the manufacturing cost of the optical/magnetic card is reduced and the manufacturing yield is improved.

〔Example〕

FIG. 4 shows a partial cross-sectional view of an optical/magnetic card showing an embodiment of this invention, in which a substrate 1 made of transparent plastic has a base 2, an optical recording layer 3, and a magnetic recording layer 4 on its surface. A recording stripe consisting of is glued. Note that 5 indicates a protective film.

The optical recording layer 3 is formed on one side of the base 2 by vapor-depositing Te-Se-based chalcogenite, tellurium oxide, etc., as will be described later.
When the photochromic material is organic phthalocyamine or spiropyran, it may be applied to the base 2 by a coating technique. For the base 2 and the magnetic recording layer 4, ordinary magnetic tape can be used as is.

The optical/magnetic card of this invention having the above structure can read data recorded in the magnetic recording layer 4 by moving the magnetic head M in contact with the protective film 5 as shown by the dotted line. .

In addition, since the substrate 1 is transparent, the substrate 1
When light is irradiated from the side through the lens L, the substrate 1
The light that has passed through is reflected by the deposited optical recording layer 3. Therefore, by detecting the pattern of reflected light, the data recorded on the optical recording layer 3 can be read out.

FIG. 5 is a schematic diagram for explaining the method for manufacturing recording stripes. A film-like magnetic tape with a magnetic film formed on the base 2 is fed from a drum 10 to a vapor deposition conveyor 11, and an inorganic film is coated on the back surface of the base 2. A based photochromic material is deposited. Reference numeral 12 denotes a film winding drum in which an optical recording layer 3 and a magnetic recording layer 4 are formed on both sides of the base 2. The film wound around the drum 12 is calendered in a separate process and cut into recording stripes by a slitter at a predetermined width.

FIG. 6 shows a manufacturing method in which the optical recording layer 3 is formed from an organic photochromic material. Since organic photochromic materials such as spiropyran and phthalocyanine have poor light reflectivity, first, aluminum, silver, etc., which will become the reflective layer 6, is vapor-deposited on the back surface of the base 2 using the apparatus shown in FIG. The surface of the reflective layer 6 is coated with an organic photosensitive material dissolved in a solvent together with a binder. That is, a reflective layer 6 is provided on the base 2 of the magnetic tape.
While moving the film on which has been vapor-deposited at a predetermined speed by rollers 13a and 13b, the mixture of photosensitive material and binder contained in the vat (VAT) 14 is transferred to the base using a gravure cord or a doctor cord. Apply 2. After the film is calendered and dried, it is cut into stripes to form recording stripes.

FIG. 7 shows an optical/magnetic card in which a recording stripe obtained by such a manufacturing method is adhered to a substrate 1, where 6 is a reflective layer and other parts are given the same symbols as in FIG. 4.

This embodiment has the advantage that the base 2 and the magnetic recording layer 4 can be made of ordinary magnetic tape as they are.

In addition, organic photosensitive materials such as spiropyran develop color when irradiated with ultraviolet rays, and it is easy to write dot patterns that serve as data.
A ROM in which predetermined data is written by coating a mask pattern on which predetermined data is written on a film coated with a photosensitive material as shown in Fig. 6 before cutting it into stripes and irradiating it with ultraviolet light.
(Read Only Memory). In this case, the magnetic recording layer 4 can be used for additional writing.

[Effects of the invention] As explained above, the optical/magnetic card of this invention has a magnetic recording layer and an optical recording layer formed on the first and second sides of the base, respectively, in stripes on one side of the substrate. Since the card is configured to be fused and fixed with a protective film, it has the advantage that manufacturing costs can be lowered compared to conventional optical/magnetic cards.

Furthermore, since the protective film is formed on the side of the substrate where the stripes are arranged, it is possible to protect the recording stripes and prevent the stripes from peeling off from the substrate, and the substrate is made of a transparent material. Therefore, optical recording can be performed from both sides of the substrate at the same time as magnetic recording, which has the effect of simplifying the structure of the recording/reading device.

[Brief explanation of the drawing]

Figures 1a and b and Figures 2a and b are a plan view and side view of a conventional optical/magnetic card, Figure 3 is an enlarged cross-sectional view of the striped part, and Figure 4 is an embodiment of this invention. A partial cross-sectional view of an optical/magnetic card showing
6 are schematic diagrams for explaining the method of manufacturing an optical recording layer, and FIG. 7 is a partial sectional view of an optical/magnetic card showing another embodiment of this invention. In the figure, 1 is a substrate, 2 is a base, 3 is an optical recording layer,
4 represents a magnetic recording layer, and 5 represents a protective film.

Claims (1)

[Claims for Utility Model Registration] A recording stripe in which a magnetic recording layer is formed on one side of the base and an optical recording layer is formed on the other side of the base, and the recording stripe is formed on one side of the base. a light-transmissive substrate on which striped optical recording layers are arranged to face each other; and a substrate with the recording stripes arranged on the substrate so as to cover the entire surface of one side of the substrate. An optical/magnetic card comprising a protective film.