JPH06312592A - Magnetic recording sheet and recording method therefor - Google Patents

Abstract

PURPOSE:To provide a magnetic recording sheet in which information can be stably read with small deterioration of recording information and its manufacture is low cost and a method for recording it. CONSTITUTION:A magnetic recording sheet 1 is formed of a magnetic pattern 4 in which a plurality of magnetic parts 3 having magnetic elements capable of being magnetized are arranged on a base material 2, wherein adjacent parts are not brought into contact, patterned coded information is recorded by magnetizing the parts corresponding to the pattern according to a predetermined coding reference as recording information to be recorded. The coded information is recorded in combination by a magnetizing direction of the parts in which the patterned coded information correspond to the pattern and presence/absence of magnetization according to the predetermined coding reference as the information to be recorded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording sheet having a magnetic pattern formed by arranging a plurality of magnetic parts, and more particularly to a coded information pattern for displaying coded information of a two-dimensional code such as a Carla code. The present invention relates to a magnetic recording sheet having a magnetizable magnetic pattern and a recording method thereof.

[0002]

2. Description of the Related Art In recent years, various recording systems have come to be used for recording information, and magnetic recording, electronic recording, optical recording, code information recording, etc. have been adopted, and cost and environment of use have been improved. It is selected accordingly. Especially in recent years, automation by machines has been promoted, and it has become necessary to identify and judge data by machines. Moreover, since information recording media have economic value information and ID information, they are recorded on recording media. There is an increasing demand for safety and weather resistance of the information provided.

Among the above-mentioned recording methods, the magnetic recording method, which is cheap and easy to spread, is used as a magnetic card, a magnetic sheet, a prepaid card, a train ticket, an entrance ticket, etc. These information recording media are capable of unattended processing via a read / write device. By the way, the magnetic recording requires a coercive force sufficient to retain information in the magnetic recording means for performing the recording, and also needs to have a stable coercive force. Therefore, the magnetic recording means selects a magnetic material and a medium material suitable for the above conditions in order to stably write and read magnetic information,
It was necessary to make an information recording medium, and there was a cost limit.

Therefore, as a cheaper information recording means, for example, a two-dimensional code such as a Carla code as described in Japanese Patent Laid-Open No. 63-132093, or coded information recording such as a bar code is a magnetic recording material. , Does not require special recording means such as IC chips, optical recording materials,
The information recording medium is inexpensive to manufacture because it can be printed on an information recording medium such as a normal card or can be recorded by an ordinary printing means. Since the reading method is optical and non-contact, the information recording medium is easy to operate. It is widely used due to its excellent structure and simple reading device.

[0005]

However, the method of recognizing the coded information pattern is to optically read the presence or absence of the pattern from the difference in reflectance of the irradiated light. Such an optical reading method affects the reflection of irradiation light when the code information pattern has stains or scratches,
It has a drawback that the pattern cannot be accurately recognized and the information cannot be read. Further, since the reading is optical and non-contact, the operation of the reading device cannot be speeded up, and there is a problem that the reading takes time.

Therefore, an object of the present invention is to provide an information recording medium and a recording method thereof, in which the recorded information is little deteriorated, the information can be stably read, and the manufacturing cost thereof is low. To do.

[0007]

SUMMARY OF THE INVENTION The present invention, which has been made to achieve the above object, comprises a magnetic pattern formed by arranging a plurality of magnetic portions containing a magnetizable magnetic substance on a base material, and each magnetic pattern is adjacent to each other. The matching magnetic parts are magnetic recording sheets that are not in contact with each other.

Further, it is a recording method of a magnetic recording sheet for recording coded information patterned according to a predetermined coding standard as recorded information by magnetizing a magnetic portion corresponding to the pattern.

Further, as the recording information, the coded information patterned according to a predetermined coding standard is recorded by the combination of the magnetization direction and the presence / absence of magnetization of the magnetic portion corresponding to the pattern. Recording method of recording sheet.

[0010]

According to the present invention, by forming a magnetic pattern in which a plurality of magnetic recording sheets are arranged so that adjacent magnetic portions do not contact each other, the magnetic properties held by the adjacent magnetic portions are affected. There is nothing. Further, by forming an array pattern in which a plurality of magnetic parts are arranged, it is possible to magnetically record the coded information patterned according to a predetermined coding standard such as a Carla code by magnetizing the corresponding magnetic part. Further, since the coded information pattern is composed of the magnetic part, the coded information can be read by detecting the presence or absence of magnetism. Further, the amount of stored information can be increased by the combination of the magnetization directions of the magnetic part and the combination of the magnetization direction and the presence or absence of magnetization.

[0011]

Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view of a magnetic recording sheet 1 of the present invention,
A magnetic pattern 4 in which a plurality of magnetic portions 3 are arranged on the base material 2 in a manner of 3 (1,1) to 3 (i, n) is formed. The magnetic parts 3 have a rectangular shape and are regularly arranged, and the adjacent magnetic parts are arranged apart from each other, so that the magnetic properties held by each other are not affected. The magnetic portion 3 is not limited to the rectangular shape, but may have another shape such as a round shape, a triangular shape, or a star shape.

The substrate 2 is polyvinyl chloride, polyester,
Resins such as polycarbonate, polymethylmethacrylate, polystyrene and polyethylene terephthalate, paper, synthetic paper and the like can be used alone or in combination as a composite. Further, its shape can be selected according to the application such as a card shape or a sheet shape, and further, it is appropriately selected from the above materials in consideration of the physical properties required according to the application, such as strength, rigidity, hiding power, and light opacity. be able to.

The magnetic portion 3 is made of Fe, Co, Ni, γ-Fe.
₂ O ₃ , Co deposited γ-Fe ₂ O ₃ , Fe ₃ O ₄ , Fe-
_{Cr, Fe-Co, CrO 2} , Co-Cr, Co-N
Fine particles of a known magnetic material such as i, MnAl, Ba ferrite, and Sr ferrite are appropriately used, for example, butyral resin, vinyl chloride / vinyl acetate copolymer resin, urethane resin, polyester resin, cellulose resin, acrylic resin, styrene. Well-known printing methods such as offset printing method, gravure printing method, silk screen printing method, etc. using a mixture of a resin such as maleic acid copolymer resin dispersed in an ink vehicle as ink, roll coating method, knife edge It can be prepared by a coating method such as a coating method, a transfer method using a magnetic transfer sheet having a transfer layer containing the above-mentioned magnetic material, or an ink jet method in which the ink containing the above-mentioned magnetic material is sprayed onto a substrate. Depending on the usage and quantity of the information recording medium to be created, the above method can be used. Yibin can be selected.

If necessary, a rubber-based resin or urethane elastomer is added to the resin or the ink vehicle as an additive. Further, if necessary, a surfactant, a silane coupling agent, a plasticizer, a wax, a silicone oil, carbon, a pigment or the like can be added to the mixture.

The magnetic portion 3 can be formed on the base material 2 by using a metal or alloy such as Fe, Co or Ni, or an oxide thereof such as a vacuum deposition method, a sputtering method or a plating method.

Further, as shown in FIGS. 2A and 2B, a colored layer 5 or a protective layer 6 may be laminated on the surface of the information recording sheet 1. The colored layer 5 hides the magnetic part 3 and covers the surface of the magnetic recording sheet 1 with a pattern layer or the like,
Not only can the design be enhanced, the presence of the magnetic pattern 4 can be hidden, and the security can be enhanced. The coloring layer 5 is composed of hydroxy cellulose, carboxytyl cellulose, starch, styrene-maleic acid copolymer, homopolymer or copolymer of methacrylic resin such as polymethylmethacrylate / polyethylmethacrylate, polystyrene, acrylic-styrene copolymer. Polymers, polyester resins, chroman resins, ABS resins, resins such as nitrocellulose, or resins mixed with fluorine-based resins or silicon-based resins are used as binders, and various pigments are added according to the color to be colored. Add a plasticizer, stabilizer, wax, grease, desiccant, drying aid, curing agent, thickener, dispersant, and then mix the colored ink sufficiently with a solvent or diluent to perform offset printing or gravure printing. Printing methods such as printing method, silk screen printing method, roll coating method, knife edge method, etc. It can be formed by a coating method. The protective layer 6 may be the same as the above-mentioned synthetic resin, and can be formed, for example, by laminating a synthetic resin film or applying a synthetic resin.

Next, the method of recording the recording information to be recorded on the magnetic recording sheet 1 of the present invention is to pattern according to a predetermined coding standard. For example, a Tagata code 7 (Carla code) as shown in FIG. The coded information is recorded based on. TAG code 7 is a decimal number (α) is 2
⁰ = 1, (β) is 2 ¹ = 2, (γ) is 2 ² = 4, (δ)
Indicates 2 ³ = 8, and depending on the combination of the presence or absence of a mark in each part, 0 to 9, a, b, c, d, e, and f are 1
It is possible to express hexadecimal numbers, and this Tagata code 7
By arranging a plurality of data as shown in FIG. 4, it is possible to record a larger amount of data.

The magnetic pattern 4 formed on the magnetic recording sheet 1 shown in FIG.
Matching (β), (γ), and (δ) with (α ′), (β ′), (γ ′), and (δ ′) of each magnetic part 3 to meet a predetermined coding standard. Can
Predetermined information can be recorded. That is, the Tata code 7 can be expressed by four magnetic parts 3 corresponding to 2 columns × 2 rows of the magnetic pattern 4. Information is recorded by magnetizing the magnetic portion 3. By reading the magnetized portion, it is possible to know which portion of the Tagata code is used and read the data. The magnetic pattern 4 can be adapted to other code systems such as a bar code, and 0 or 1 can be set depending on the presence or absence of magnetization of the magnetic portion 3 to record information.

Next, the recording method of the present invention will be explained based on the schematic view of the magnetic recording apparatus 11 shown in FIG. The magnetic recording device 11 has an input means 12 for inputting data from the outside, a calculating means 13 for converting the input data into a predetermined code and outputting the code to a magnetic head 15, and an output from the calculating means 13 for amplifying the magnetic head. The magnetic head 15 magnetizes the magnetic portion 3 of the magnetic recording sheet 1 and an amplifying means 14 for generating a write current to the magnetic recording sheet 15. The display unit 16 is a display or a printer for displaying the input data and the written data. The signal converted into a predetermined code becomes a write current by the calculating means 13, and the head surface of the magnetic head 15 and the magnetic portion 3 formed on the surface of the magnetic recording sheet 1 come into contact with each other to be magnetized. That is, according to the coding standard, by magnetizing the magnetic part corresponding to the patterned coded information to the pattern,
A code pattern is created and information is recorded. This makes it possible to display data, and various kinds of coded information can be recorded by using an arbitrarily defined code as a reference. The magnetic head 25 may have a two-row configuration according to the Tagata code 7 and the magnetic patterns 4 may be written in two-row units. Alternatively, the magnetic head 25 may be one configuration and the magnetic patterns 4 may be written in one-row unit. You may Although not shown, it is desirable to display a tracking mark on the surface of the magnetic recording sheet 1 so that the magnetic head 3 can be magnetized reliably by the magnetic head. You may read and scan a magnetic head.

A method of reading the magnetic recording sheet 1 of the present invention will be described with reference to the schematic view of the magnetic reading device 21 shown in FIG. The magnetic reading device 21 scans the magnetic pattern 25 of the magnetic recording sheet 1 with the magnetic head 25, detects the magnetism of the magnetic portion 3, amplifies the output by the amplifying means 24, and calculates the coded information by the calculating means 23. The output unit 22 processes and outputs the read data to an external device. The display means 26 displays the read data on a display or the like. The magnetic head 25 may have a two-row configuration in accordance with the Tata code 7, and the magnetic pattern 4 may be read in units of two rows.
The magnetic patterns 4 may be read in a unit of one row in the configuration.

In the above embodiment, the magnetic recording device 11 and the magnetic reading device 21 are separately described, but the device configuration is the same and both the magnetic recording and the magnetic reading can be used as the recording and reading device.

Next, another recording method of the magnetic recording sheet of the present invention will be described. A magnetic pattern 4 composed of a magnetic portion 3 is arranged on the surface of the magnetic recording sheet 1, and the code pattern is read depending on the presence or absence of magnetization. Normally, it is determined whether or not magnetized. However, in the present invention, the direction of magnetization of the magnetic portion 3, that is, the magnetic pole direction (N
It is possible to increase the information amount of the code data due to the magnetization of the magnetic pattern 4 by discriminating different data types depending on the difference between the pole and the S pole) by the combination of the magnetic pole direction and the presence or absence of magnetization.

FIG. 7 shows a magnetic pattern of the magnetic recording sheet 1 showing an example thereof, in which the magnetic portion 3 is the N pole or S according to the coded information patterned according to a predetermined coding standard depending on the presence or absence of magnetization. The poles are magnetized or not magnetized. That is, the magnetic portion 3 forming the Tagata code 7'is magnetized to the N pole or the S pole or is not magnetized, and information is recorded by combining a plurality of the Tagata codes 7 '. The information amount represented by the Tagata code 7'increases as compared with the recording system only with or without magnetization, and thus the information amount per unit area also increases.

Further, on the surface of the magnetic recording sheet 1 of the present invention, a magnetic pattern 4 composed of magnetic portions 3 is arranged, and the coded information obtained by patterning the magnetic portions 3 according to a predetermined coding standard is formed in the pattern. Since information is recorded by magnetizing the corresponding magnetic portion, the magnetic recording sheet 1 can be reused by demagnetizing the magnetic portion 3 of the used magnetic recording sheet 1 when it is no longer needed. It will be possible.

[0025]

As described above, according to the present invention, by forming a magnetic pattern in which a plurality of magnetic recording media are arranged so that the adjacent magnetic portions do not contact each other, the adjacent magnetic portions hold each other. The coded information patterned according to a predetermined coding standard such as the Carla code can be magnetically recorded by the magnetization of the corresponding magnetic portion without affecting the magnetism. Since the coded information can be read by detecting the presence or absence of magnetization of the part, it is resistant to dirt and dust on the pattern surface, and compared to the conventional method of optically reading with a laser scanner such as a CCD scanner, the coded information pattern The reading accuracy and reading speed can be improved. Furthermore, the amount of stored information can be increased by combining the magnetization directions of the magnetic portions forming the coded information pattern and the combination of the magnetization direction and the presence / absence of magnetization, which makes it possible to increase the information amount per unit area. Moreover, the magnetic recording medium of the present invention can be reused by demagnetizing the magnetic portion after use.

[0026]

[Brief description of drawings]

FIG. 1 is a front view of a magnetic recording sheet of the present invention.

2A is a front view of a magnetic recording sheet according to another embodiment of the present invention, and FIG. 2B is a sectional view taken along line AA ′ of the magnetic recording sheet 1 of FIG. .

FIG. 3 is an explanatory diagram showing a Tagata code 7 (Karla code) which is one of the coded information patterns recorded on the magnetic recording sheet of the present invention.

FIG. 4 is an explanatory diagram showing information by arranging a plurality of Tagata codes (Carla codes), which is one of the coded information patterns of FIG.

FIG. 5 is a schematic view of a magnetic recording device for recording information on the magnetic recording sheet of the present invention.

FIG. 6 is a schematic view of a magnetic reading device for reading information recorded on a magnetic recording sheet of the present invention.

FIG. 7 is an explanatory diagram of a coded information pattern showing a magnetic pole direction of a magnetic portion of the magnetic recording sheet of the present invention.

[Explanation of symbols]

 1 Magnetic Recording Sheet 2 Base Material 3 Magnetic Part 4 Magnetic Pattern 5 Colored Layer 6 Protective Layer 6 7, 7'Tagata Code 11 Magnetic Recording Device 21 Magnetic Reading Device

Claims (4)

[Claims] 1. A magnetic recording comprising a magnetic pattern formed by arranging a plurality of magnetic portions containing a magnetizable magnetic substance on a base material, and adjacent magnetic portions are not in contact with each other. Sheet. 2. The magnetic recording sheet according to claim 1, wherein the magnetic portion has a rectangular shape. 3. A recording method for a magnetic recording sheet, characterized in that coded information patterned according to a predetermined coding standard is recorded as record information by magnetizing a magnetic portion corresponding to the pattern. 4. The magnetic information recorded as coded information, which is coded according to a predetermined coding standard, is recorded by a combination of a magnetization direction and presence / absence of magnetization of a magnetic part corresponding to the pattern. Recording method of recording sheet.