JPH08324168A - Gift certificate - Google Patents

Abstract

PURPOSE: To efficiently manage a commodity and to improve the forgery preventing effect by inserting a metal thin strip, a thin film or their processed components including at least part of the magnetic element having substantially zero magnetostriction to form a gift certificate. CONSTITUTION: In a gift certificate such as a beer gift certificate, or a book coupon, a metal thin strip, a thin film or their processed components including at least part of the magnetic element having substantially zero magnetostriction is inserted into a card made, for example, of plastic to give the function as a sensor. In this case, binary signals are obtained from between the part having substantially zero magnetostriction and the part having no zero magnetostriction, i.e., a nonmagnetic part and a part having no excellent soft magnetic characteristic, and a discriminating sensor is functioned according to the magnitude and the number of the signals. The part having the zero magnetostriction and the part except it may be at least one set. In order to enhance the sensitivity, there are preferable a plurality of sets. The metal thin strip, thin film or their processed components each has a thickness of 1 to less than 10μm, and is formed of Co-base amorphous alloy.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gift certificate, and more specifically, to a bill ticket, a book ticket, a stationery ticket, in which various types of information are recorded in advance, such as a thin metal strip, a thin film, or a processed part thereof inserted as a sensor. Related to gift certificates such as toy tickets, rice vouchers, and meal tickets. Further, the present invention relates to a general information recording component in which a thin metal ribbon, a thin film on which various information is recorded in advance, or a processed component thereof is inserted as a sensor.

[0002]

2. Description of the Related Art In recent years, a wide variety of gift certificates such as beer tickets, book tickets, stationery tickets, toy tickets, rice vouchers, meal tickets, etc. have become widespread and the demand has been extended. Along with this, it is required to add functions to these various gift certificates to improve the efficiency of product management.

In addition, various information recording articles such as gift certificates are also being studied for the purpose of preventing theft and forgery. For example, in order to prevent theft, a tag sandwiching an amorphous thin wire or an amorphous ribbon on a sheet-shaped base material such as paper or film is attached to an article and peeled off by a predetermined method at the exit, and detection by a magnetic field is performed. Alternatively, magnetic treatment is performed (Japanese Patent Laid-Open No. 3-121598, Japanese Patent Laid-Open No. 63-22829).
8). In addition, a method of magnetically detecting a sheet printed with magnetic ink, or a sheet thickness of 20 μm in advance,
A method for detecting a metal piece having a width of 0.5 to 1.0 mm by inserting it in a paper sheet (Japanese Patent Laid-Open No. 58-2994), and a flexible water-impermeable substrate having a metal layer on one or both sides, Specifically, a method for obtaining safety protection by allowing plastic to be present at least partially between both sides of paper (Japanese Patent Laid-Open No. HEI 2-
6694).

On the other hand, recently, cards have been widely used for the purpose of simplifying information processing. The personal information uses numbers and magnetic recording, and specifically, ferrite magnetic powder having a relatively large coercive force is used. These cards also use hologram stickers to prevent counterfeiting. In addition, as a method for managing information, there is also a method of easily collecting dispersed information by individually attaching a sensor using an LC resonance shift due to a combination of a coil and a capacitor having different inductance values to an object requiring information retention. It is taken.

[0005]

However, the above-mentioned function is not added to the conventional gift certificate, and it is not possible to obtain sufficient information to efficiently perform product management, inventory management, and quality control. It was

Further, even in the measures against theft prevention and forgery prevention, the above-mentioned method is still not sufficient for the discrimination and further forgery prevention, and the article incorporating the information is sufficiently small and lightweight. It has not been completed and further improvement is needed.

That is, when an amorphous thin wire or a tag sandwiching an amorphous ribbon is attached to an article on a paper or film substrate, the tag is attached to the article and is easily peeled off so that the article is easily stolen. Become. In addition, when this is inserted into an article, if an amorphous thin wire of about 100 μm is drawn and used as 20 μm, the sample will be curved and it will be difficult to insert it. If heat treatment is performed to eliminate this, it becomes brittle and its mechanical properties deteriorate, so that it cannot be used as a sensor. Further, in the case of a thin band of about 20 to 30 μm, the material thickness when inserted is relatively close to the thickness of the article to be inserted, and therefore characteristics such as mechanical strength of the material appear during use, and the article Handling becomes worse.

On the other hand, when a magnetic ink is used, a printing technique has been developed so that the magnetic strength is shaded at the time of printing, and this is detected by a magnetic head to find the consistency of the magnetic shade. However, the output was small, there was a problem with sensitivity, and it was easy to forge with other materials.

The plate thickness is 20 μm and the width is 0.5 to 1.0 m.
In the case of the method of detecting the metal piece of m by putting it in the paper sheet, it is not familiar with the paper sheet and may fall out during use, or it may be too thick compared to the thickness of the paper sheet. There were problems such as difficulty.

On the other hand, when at least a part of the plastic is present between both sides of the paper, it is basically only the judgment by the eye, and even when detecting the metal, it is possible to distinguish it from other materials. The problem was that it was hard to stick and easy to forge.

Further, when an article in which information is recorded in advance is mounted on a predetermined object corresponding to the information, the size thereof becomes a problem and it is not easy to handle. In addition, in the case of various current cards, the part where the information is magnetically recorded is exposed, so that the information is relatively easy to read and is easy to forge. It is also difficult for the user to use because it disappears.

An object of the present invention is to provide a gift certificate and an information recording article containing a sensor, which is extremely effective for the management and safety of such information, and which is not displaced or detached from a predetermined position. To do.

[0013]

As a result of intensive studies for solving the above problems, the present invention has revealed that a metal ribbon, a thin film, or a metal thin film including at least a part of a magnetic material having almost no magnetostriction is formed. It has been found that by inserting the component as a sensor into an article, for example, a card made of plastic, a highly-reliable high-performance gift certificate having a function as a sensor can be obtained.

That is, the first gift certificate according to the present invention is characterized by inserting a metal ribbon, a thin film or a processed part thereof containing at least a part of a magnetic material having substantially no magnetostriction.

Further, especially by inserting a metal ribbon having a surface coated with or adhered with an organic substance into an article made of a fibrous substance, specifically, putting it into the paper when the paper is scooped, it is extremely reliable. We also found that a high-quality gift certificate can be obtained. That is, the second gift certificate according to the present invention is characterized in that a metal foil, a thin film, or a processed part thereof having at least one surface coated or adhered with an organic substance is inserted into a gift certificate made of a fibrous substance. I am trying.

At the same time, the inventors of the present invention insert a metal ribbon, a thin film, or a processed part thereof containing at least a part of a magnetic material having almost no magnetostriction into an article, for example, a card made of plastic, as a discrimination sensor. Therefore, it was also found that a highly sensitive and highly reliable information recording article having both a sensitivity as a discrimination sensor and a forgery preventing function can be obtained.

That is, the first information recording article according to the present invention is characterized by inserting a metal ribbon, a thin film or a processed part thereof containing at least a part of a magnetic material having substantially no magnetostriction.

Further, especially by inserting a metal ribbon having an organic material applied or adhered to the surface thereof into an article made of a fibrous substance, specifically, putting it into the article when the paper is plucked, it is extremely reliable. It was also found that a high-quality information recording article can be obtained. That is, the second information recording article according to the present invention is obtained by inserting a metal ribbon, a thin film, or a processed part thereof, in which at least one surface is coated or adhered with an organic substance, in an information recording article made of a fibrous substance. Is characterized by.

In the first gift certificate and the information recording article of the present invention, the fact that the magnetostriction of the metal ribbon, the thin film or the processed parts thereof is substantially zero means that the magnetostriction is 3 ppm or less.

In the present invention, a binary signal is obtained between a portion where the magnetostriction is substantially zero and a portion where it is not, that is, a non-magnetic portion or a portion where the soft magnetic characteristics are not good, and depending on the magnitude and number of the signal. Functions as a discrimination sensor. Therefore, at least one set is required for the zero magnetostriction portion and the other portion, and the area ratio is preferably 10% or more. Further, in order to increase the sensitivity, it is preferable that a plurality of zero magnetostriction portions and other portions are provided as shown in FIG. 1, and the area ratio is more preferably 20% or more.
Depending on the application, it may be composed of only the magnetostrictive zero portion.

The above-mentioned metal ribbon, thin film or processed parts thereof are preferably made of a material represented by the following general formula from the viewpoint of high sensitivity as a discrimination sensor. (Co _1-ab Fe _a M _b ) _100-X (Si _1-c B _c ) _X ··· (1) M: Ti, V, Cr, Mn, Ni, Cu, Zr, Nb,
At least one selected from Mo, Hf, Ta, W 0.02 ≦ a ≦ 0.10 0 ≦ b ≦ 0.10 0.2 ≦ c ≦ 1.0 10 ≦ X ≦ 30 (atomic%) is preferable. .

Further, the general formula _{(Fe 1-d M1 d)} 100-efg Cu e M2 f Si g B h ·· (2) M1: Co, at least one selected from Ni M2: Ti, V, Zr , Nb, Mo, Hf, Ta, W at least one kind or more 0 ≦ d ≦ 0.3 0.01 ≦ e ≦ 5 0.1 ≦ f ≦ 10 0 ≦ g ≦ 25 0 ≦ h ≦ 30 It may be a thin metal ribbon. In this case, the magnetostriction can be made almost zero by heat-treating at a temperature equal to or higher than the crystallization temperature after the amorphous material by the rapid cooling and precipitating an average particle diameter of 50 nm or less.

In the case of a metal thin film, at least one selected from the general formula T _100-def M3 _d M4 _e Z _f ··· (3) T: Fe, Co, Ni M3: Ti, Zr, Hf, V, Nb, Ta, Cr, M
At least one selected from o and W M4: Cu, Ag, Au, at least one selected from platinum group elements Z: At least one selected from B, C, N, O, Si and Al 3 ≦ d ≦ 150 ≦ e ≦ 50 0 ≦ f ≦ 15 (atomic%) is preferable, and after the film is made amorphous, heat treatment is performed at a temperature equal to or higher than the crystallization temperature to precipitate a grain size of 50 nm or less on average, thereby suppressing magnetostriction. It can be almost zero.

In this case, it is preferable that a part of the sample is heated to a temperature equal to or higher than the crystallization temperature by a method such as a laser and heat-treated to precipitate fine crystal grains, so that the structure has two or more phases. This metal thin film can be produced by a well-known sputtering method such as DC or magnetron sputtering method, but can also be produced by a normal liquid quenching method under the following conditions. In the case of forming a thin film by the sputtering method, it may be formed on a heat resistant film such as polyimide or a film such as PET, or may be formed on a substrate such as glass which is thin but has high strength. good.

Further, the plating method is also applicable to the plate thickness C within the range of the present invention.
A discrimination sensor made of an o-based amorphous alloy can be manufactured. For example, this can be electrodeposited in an acidic plating bath containing divalent Co ions and divalent Fe ions, and phosphite or hypophosphite to prepare a sample having a thickness of 1 to 10 μm. . In this case, it is preferable to use the one represented by the general formula (Co _1-g Fe _g ) _{100-h Ph} ·· (4) 0.02 ≦ g ≦ 0.108 8 ≦ h ≦ 20 (atomic%). preferable.

The metal ribbon used in the present invention is manufactured as follows. That is, after melting the mother alloy prepared so as to basically satisfy the composition of the formula (1), (2) or (3), this molten alloy is injected from the nozzle onto the rotary cooling body and ultra-quenched for alloy thinning. Get the obi. At this time, the rotary cooling body is made of a Fe-based alloy or a Cu-based alloy, the nozzle tip shape is rectangular, and the short side positioned parallel to the circumferential direction of the rotary cooling body is 0.07 to 0.15 mm. 760 Torr while rotating the rotary cooling body at a peripheral speed of 20 to 50 m / s.
In a reduced pressure atmosphere of r or less, the molten alloy is 0.0
It is preferable to inject onto the rotary cooling body at an injection pressure of 01 to 0.05 kg / cm ² . In this way, 10 μm
The following metal ribbon is produced. The alloys represented by the formulas (1), (2) and (3) are
An amorphous phase is obtained.

The metal thin film used in the present invention is a normal DC,
It can be produced by various film forming apparatuses such as AC, magnetron sputtering method, and ion beam sputtering method, and its manufacturing apparatus and conditions are not limited. In particular, the atmosphere during production can be produced by controlling the partial pressures of Ar and nitrogen, oxygen, methane, etc., depending on the required composition.

The processed parts of the metal ribbon and the metal thin film used in the present invention can be processed and manufactured into various shapes such as a circle, an ellipse, a triangle and a quadrangle by a method such as laser processing and etching.

The thickness of the discrimination sensor used in the present invention, that is, the metal ribbon, the thin film or the processed parts thereof is preferably 1 μm or more and less than 10 μm in view of the sensor function. That is, when the thickness is 1 μm or less, the sensor output becomes small, and it becomes difficult to distinguish it from other materials. On the other hand, 1
If the thickness is 0 μm or more, the thickness is too large for the thickness of the article on which information is desired to be recorded, and therefore problems such as handling during use, that is, deviation and detachment occur. It is preferably 2 to 9 μm,
More preferably, it is 3 to 8 μm.

The width of the metal ribbon or thin film which is the sensor used in the present invention is preferably in the range of 0.1 to 10 mm in view of its sensor function. 0.1 mm
In the following, the sensor output becomes too small, and it becomes difficult to distinguish it from other materials. On the other hand, if it is 10 mm or more, the width becomes too wide, which causes a problem in handling. Further, particularly in the case of a thin strip, a discrimination sensor having a width of 2 mm or less is slit to prevent the detachment of a sensor which is adjusted and processed in this range when it is inserted into a fibrous substance. preferable.

The sensor used in the present invention has characteristics by inserting a plurality of thin strips or thin films having the same specifications, or by inserting thin strips or thin films having different widths, and further by changing the surface treatment or alloy composition. Different bands can be diversified by inserting thin strips or thin films of different phases to form two or more phases. “Various characteristics”
Are those that are magnetic and those that are non-magnetic, and those whose magnetic permeability values are significantly different. The continuity of the ribbon or thin film inserted in the matrix of the gift certificate or the like is not particularly limited as long as the desired characteristics are satisfied.
That is, the thin strip or thin film may be long or partially cut.

Further, processed parts obtained by processing thin ribbons and thin films into various shapes can be used as sensor parts in the same manner as the above-mentioned thin ribbons and thin films. Furthermore, for example, processed parts with thin ribbons of various shapes, such as circles, ellipses, triangles, and squares, have different characteristics due to differences in shape. Can diversify information. Specifically, it is possible to identify other types by the intervals and shapes of arranging the processed parts.

Furthermore, even if a thin strip or thin film or a processed part thereof is partially crystallized or surface-treated, a large amount of information can be recorded on a single sample as a magnetic phase and a non-magnetic phase. It is also possible to make a gift certificate and an information recording article by recording by recording two levels such as a soft magnetic phase and a phase having relatively poor soft magnetic characteristics, or by further ranking the magnetic characteristics. As the partial crystallization or surface treatment, for example, by setting one or more holes penetrating in the thickness direction in at least a part of the metal ribbon or thin film, setting the difference in the writing information depending on the location, Further, at least a part of the metal ribbon or thin film is cut so that ribbons having different characteristics are arranged alternately or in other combinations in a single row or in a plurality of rows and an information recording article. And so on. As the ribbons having different properties, the alloys having different magnetic properties among the alloys represented by the above general formulas (1), (2), (3) and (4), and those set for heat treatment,
Alternatively, a combination of these ferromagnetic materials and paramagnetic materials may be used. A particularly preferable material for the paramagnetic material is the general formula (Co _1-nm Fe _n M _m ) _100-q (Si _1-p B _p ) _q (5) M: Ti, V, Cr, Mn, Ni, Cu, Zr, Nb,
At least one selected from Mo, Hf, Ta and W 0 ≦ n ≦ 0.1 0 ≦ m ≦ 0.2 0.2 ≦ p ≦ 1.0 20 ≦ q ≦ 35 (atomic%) Alternatively, a general formula (Ni _1-r M _r ) _100-s (Si _1-t B _t ) _s ··· (6) M: Ti, V, Cr, Mn, Fe, Co, Cu, Zr,
At least 1 selected from Nb, Mo, Hf, Ta, W
Seed or more 0 ≦ r ≦ 0.2 0.2 ≦ t ≦ 1.0 10 ≦ s ≦ 35 (atomic%) An amorphous alloy having a Curie temperature below room temperature.

It is also possible to change the information output signal by applying a bias to the soft magnetic phase with a permanent magnet or the like. In addition, when a resin is applied or a film is adhered to the surface of a metal ribbon, a metal thin film, or a processed part of these, when inserting as a gift certificate or an information recording article made of a fibrous substance, It is effective in preventing displacement and detachment. The coating thickness or the thickness of the adhered film is preferably 1 to 15 μm. More preferably, it is 3 to 7 μm. In the case of coating, the resin is preferably a photocurable resin, an acrylic resin, a polyester resin, a hot melt resin or the like, and when a film is used, PET, polyester or the like may be used. In the case of a metal ribbon processed part, various kinds of processed parts arranged on a long film or those sandwiched between films may be inserted. By using a colored resin or film, it is possible to identify when a part of the resin or film inserted into the fibrous material is exposed on the surface.
Further, by visually marking a part of the resin or film with a laser or the like, it is possible to visually identify the character.

The sensor of the present invention may detect the output voltage by contacting or non-contacting excitation and detection at an arbitrary position, but the excitation direction and the detection direction may be the same direction. It is preferable because of the size of the output. Further, the detection may be the same as the excited frequency, but it is advantageous in terms of noise and the like when it is detected as a harmonic. Also,
When detecting the output, the width of the sensor can also be detected from the detection width.

For detection in the present invention, it is preferable to use a magnetic head and a magnetoresistive element. further,
A differential magnetic head is used to increase sensitivity for detection. As shown in FIG. 1, this differential magnetic head amplifies two voltage outputs on the secondary side by using a differential amplifier, and detects the difference between the voltages induced between 4-5 and 5-6. Is the way to do. However, in this method, generally, if the exciting magnetic field on the primary side is increased, even a weak voltage signal such as magnetic tape or magnetic ink can be detected. However, in the present invention, the exciting magnetic field is made extremely small. Under the above conditions, the induced voltage accompanying the change in magnetic flux of the metal ribbon can be detected. The excitation frequency in this case is preferably 100 Hz to 10 MHz. If the frequency is 100 Hz or less, the detection unit becomes too large, and if the frequency is 10 MHz or more, noise in the excitation circuit increases. In order to make the difference with other materials more remarkable, 1 kHz to 1 MHz is preferable. The magnitude of the exciting magnetic field is preferably in the range of 1 to 500 A / m when exciting the thin metal strip contained in the article. 1 A / m
In the following, the detection output level is low and the reliability is poor in relation to the noise level. On the other hand, when it is 500 A / m or more, a large detection output is obtained even with other magnetic materials. Furthermore, when the thickness of the metal ribbon is 4 to 10 μm, it is 8 to 4
A magnetic field of 00 A / m is preferred.

[0037]

The present invention will be described below with reference to examples. Example 1 and Comparative Examples 1, 2, 3 (Co _0.90 Fe _0.05 Cr _0.05 ) ₇₅ (Si _0.5 B _0.5 ) ₂₅
A photocurable resin (3051 manufactured by ThreeBond Co., Ltd.) was applied to the surface of an amorphous alloy ribbon having a width of 1.5 mm and a plate thickness of 6 μm, and then cured with ultraviolet rays to be used as a sensor sample. As shown in FIG. 1, for example,
It was inserted in a predetermined position in the banknote and fixed by thermocompression bonding at 120 ° C. for 30 minutes.

On the other hand, as Comparative Example 1, a Fe ribbon having a width of 1.5 mm and a plate thickness of 20 μm, or as Comparative Example 2, a diameter of 20
A μ ₇₈ μm Fe ₇₈ Si ₁₀ B ₁₂ amorphous wire was inserted into the bill ticket in the same manner as in the example.

When one end of the sensor contained in this bill was fixed and bent 90 ° with the central portion as a fulcrum, the sensor of the present invention did not come out from the bill, but a comparison was made. In the case of the examples, all the samples were displaced, and as a result, they often slipped off easily.

The inserted sample was excited at an excitation frequency of 5 kHz,
The output was examined with a detection head at a magnetic field of 8 A / m. As a result, in the case of the sensor of the present invention, the output is 450 mVp-
On the other hand, in the case of the sample of the comparative example, almost no output was obtained in the iron ribbon, and in the case of the amorphous wire, it was 30 mVp-p. Further, as Comparative Example 3, Fe
Apply ₂ O ₃ paint to the surface of paper to a thickness of 3 μm,
A comparative sample was prepared and measured under the same conditions, but no output was obtained.

Examples 2 to 12 and Comparative Examples 4 and 5 Each material having a width of 1.5 mm and a plate thickness of 6 μm shown in Table 1 was coated with polyester of 3 μm and cured, and then beer ticket, book ticket, stationery ticket. , Inserted in toy ticket, rice voucher, meal ticket, etc. In addition, as a comparative example, F with a plate thickness of 25 μm
e3 wt% Si and a Fe-based amorphous alloy with a plate thickness of 15 μm were used and inserted into various gift certificates.

As in Example 1, the obtained sample was fixed at one end of the sensor inside the gift certificate and bent 90 ° around the center as a fulcrum. Although it did not escape, in the case of the comparative example,
Misalignment occurred in all samples, and as a result, they often slipped off easily. The durability shown in Table 1 is 1 for the double circle.
When there is no 00% problem, Δ is about 20%, deviation or derailment occurs, and × is about 50% or more, and deviation or derailment occurs.

For these sensors, the excitation frequency 10
The output was examined with a detection head at a frequency of 16 A / m at a frequency of kHz. As a result, the detection output of the sensor of the present invention is large and is 300 to 400 mVp-p, whereas in the case of the sample of the comparative example, almost no output is obtained with the iron ribbon,
In the case of an amorphous wire, it was 30 mVp-p.

[0044]

[Table 1]

Examples 13 to 15 and Comparative Examples 6 to 8 By the plating method, the width of 2 mm and the thickness of each plate (Co _0.95 Fe
_0.05 ) ₈₆ P ₁₄ was prepared. Specifically, cobalt sulfate,
It was prepared by changing the plating time using an aqueous solution of ferric chloride and phosphorous acid having a pH of 1.5.

After applying an acrylic resin having a thickness of 2 to 3 μm to these samples, the samples were inserted into a gift certificate in the same manner as in Example 1 to prepare samples with a sensor. When one end of the sensor was fixed and the sample was bent 90 ° around the center as a fulcrum for these samples, the sensor of the present invention did not come out from the gift certificate, but in the case of the comparative example, deviation occurred in all the samples. As a result, it often fell out easily. As shown in Table 2, the sensor output was too small when the plate thickness was 1 μm or less.

[0047]

[Table 2]

Examples 16 to 22 and Comparative Example 9 Fe-based amorphous alloys of various compositions having a plate thickness of about 7 μm shown in Table 3 were prepared and cut into samples having a width of 5 mm and a length of 70 mm. These samples were crystallized with a laser at intervals of 10 mm in length by partially raising the temperature to the crystallization temperature or higher. This part is X-ray diffraction result and Sch
From the Reer equation, it was confirmed that the average crystal grain size was about 10 to 20 nm.

For comparison, an alloy having a plate thickness of 7 μm made of Fe ₇₈ Si ₉ B ₁₃ amorphous alloy was produced, and after having the same shape, the temperature was partially raised by the laser at intervals of 10 mm up to the crystallization temperature or higher. It was raised and crystallized.

These samples were embedded in a card having a plastic substrate and magnetically excited and signals were detected in a non-contact manner. The conditions are 100 kHz and 0.4 A / m. As a result, in all the samples, a large signal was obtained in the crystallized portion, and the number of signals was equal to the number of crystallized portions. On the other hand, in the comparative example, the output signal was extremely small, and sufficient characteristics could not be obtained for the discrimination sensor. In addition,
In the example, the signal is obtained in the crystallized part, while in the comparative example, the signal is obtained in the non-crystallized part.

[0051]

[Table 3]

Examples 23 to 32 and Comparative Example 10 Metal thin films shown in Table 4 were prepared using various alloy targets and cut into samples having a width of 5 mm and a length of 70 mm. Laser was applied to these samples at intervals of 5 mm,
Crystallization was carried out by partially raising the temperature above the crystallization temperature. From this X-ray diffraction result and Schreer's equation, it was confirmed that the average crystal grain size of this portion was about 10 nm.

As a comparative example, a Fe ₇₈ Si ₉ B ₁₃ amorphous alloy was formed under the same conditions and adjusted to the same shape. This sample was also crystallized by partially raising the temperature to the crystallization temperature or higher at intervals of 5 mm with a laser.

These samples were embedded in a card having a plastic substrate, and magnetically excited and detected signals in a non-contact manner. The conditions are 1 MHz and 0.8 A / m. In each of the samples, a large signal was obtained in the crystallized part, and the number of signals commensurate with the number of the crystallized part was obtained. On the other hand, in the case of the comparative example, the signal was at a level insufficient to discriminate.

In Examples 26 and 29, the surface of the sample was coated with resin. Regarding the samples of Examples 24 and 28, the fully crystallized ones were embedded in the same substrate and the outputs were evaluated under the same conditions. As a result, outputs equivalent to the respective values shown in Table 4 were obtained.

In the example, the signal is obtained in the crystallized part, while in the comparative example, the signal is obtained in the non-crystallized part. Although the example focusing on the gift certificate is given here, it is obvious that the same effect can be obtained in other information recording articles.

[0057]

[Table 4]

Examples 33 to 36 (Co _0.91 Fe _0.05 Cr _0.04 ) ₇₄ (Si _0.5 B _0.5 ) ₂₆
A 1 mm wide and 6 μm thick amorphous alloy ribbon as shown in FIG. 3 was processed as shown in FIGS.

The method for inserting the amorphous alloy ribbon and the measurement conditions for the output are the same as in Example 1. In this embodiment, area 1 and area 2 are both spaced by 10 mm, and a plurality of magnetic heads are arranged at intervals having different sensor characteristics. The results are shown in Table 5, and two types of discrimination were possible in any of the examples. In the area 1, the same output as that of the example 1 was obtained. From this, it has been found that a great amount of information can be created by appropriately selecting a combination and a permutation of thin ribbons and thin films. The detection ratios in Table 5 are the ratios of the output of area 2 when the output of area 1 is 1, and the larger the difference is, the better the detection capability is.

[0060]

[Table 5]

Examples 37 to 41 Co-based amorphous alloys similar to those in Examples 33 to 36 were processed into various shapes shown in Table 6 by laser processing, and the output ratio by each shape effect (square was set to 1). In this case, the ratio per unit area) was measured. The results are shown in Table 6.

Next, as an example, as shown in FIGS. 7, 8 and 9, elliptical metal ribbon processed parts are arranged densely and densely on a long thermoplastic resin film and fixed at equal intervals or different sizes. , The same film was sandwiched, and heat was applied to obtain a sensor output part. After inserting these into a gift certificate, a magnetic field was applied in the longitudinal direction of the sample in the same manner as in Examples 33 to 36 to measure the sensor output.

As a result, the sensor outputs unique to FIGS. 7, 8 and 9 are detected, and even if the processed parts have the same shape, a large amount of information can be recorded depending on the arrangement position, size, or a combination thereof. Became clear. In addition, the same effect was obtained also in the combination of various shapes.

[0064]

[Table 6]

[0065]

EFFECTS OF THE INVENTION By using the gift certificate and the information recording article of the present invention, a very wide variety of information can be easily discriminated and the sensor can be present in the gift certificate and the article very stably. The merits are significant and its industrial value is extremely large.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a detection head evaluated in the present invention.

FIG. 2 is an external view of a gift certificate in which a metal thin film is inserted as an example of the present invention.

FIG. 3 is a schematic view of an alloy ribbon showing Example 33 of the present invention.

FIG. 4 is a schematic view of an alloy ribbon showing Example 34 of the present invention.

FIG. 5 is a schematic view of an alloy ribbon showing Example 35 of the present invention.

FIG. 6 is a schematic view of an alloy ribbon showing Example 36 of the present invention.

FIG. 7 is a schematic diagram of a sensor output unit in which elliptical alloy ribbons are sparsely and densely arranged as one example of the present invention.

FIG. 8 is a schematic view of a sensor output unit in which elliptical alloy ribbons are arranged at equal intervals as one embodiment of the present invention.

FIG. 9 is a schematic diagram of a sensor output unit in which elliptical alloy ribbons having different dimensions are arranged as an example of the present invention.

Claims (18)

[Claims] 1. A gift certificate obtained by inserting a metal ribbon, a thin film, or a processed part thereof containing at least a part of a magnetic substance having almost no magnetostriction. 2. The gift certificate according to claim 1, wherein the metal ribbon, the thin film, or a processed part thereof has a thickness of 1 μm or more and less than 10 μm. 3. The gift certificate according to claim 1, wherein the metal ribbon, the thin film, or a processed part thereof is composed of at least two phases. 4. The gift certificate according to claim 1, wherein at least one surface of the metal ribbon, the thin film, or a processed part thereof is coated or adhered with an organic substance. 5. The gift certificate is a bill ticket, a book ticket, a stationery ticket,
The gift certificate according to any one of claims 1 to 4, which is a toy ticket, a rice voucher, or a meal ticket. 6. A gift certificate made of a fibrous material obtained by inserting a metal ribbon, a thin film, or a processed part of these, which is coated or adhered with an organic substance on at least one surface. 7. The gift certificate according to claim 6, wherein the metal ribbon, the thin film, or a processed part thereof has a plate thickness of 1 μm or more and less than 10 μm. 8. The gift certificate according to claim 6, wherein the metal ribbon, the thin film, or a processed part thereof is made of a Co-based amorphous alloy. 9. The gift certificate according to claim 6, wherein the fibrous substance is paper. 10. The gift certificate according to claim 6, wherein the gift certificate is a bill ticket, a book ticket, a stationery ticket, a toy ticket, a rice voucher, or a meal ticket. 11. An information recording article obtained by inserting a metal ribbon, a thin film, or a processed part of these containing at least a part of a magnetic substance having substantially no magnetostriction. 12. The information recording article according to claim 11, wherein the thickness of the metal ribbon, the thin film or processed parts thereof is 1 μm or more and less than 10 μm. 13. The information recording article according to claim 11, wherein the metal ribbon, the thin film, or a processed part thereof comprises at least two phases. 14. The information recording article according to claim 11, wherein at least one surface of the metal ribbon, the thin film, or a processed part thereof is coated with or adhered with an organic substance. 15. An information recording article made of a fibrous substance having a metal ribbon or a thin film having an organic material applied or adhered on at least one surface thereof or a processed part thereof inserted therein. 16. The information recording article according to claim 15, wherein the metal ribbon, the thin film, or a processed part thereof has a plate thickness of 1 μm or more and less than 10 μm. 17. The information recording article according to claim 15, wherein the metal ribbon, the thin film, or a processed part thereof is made of a Co-based amorphous alloy. 18. The information recording article according to claim 15, wherein the fibrous substance is paper.