JPH03272896A - Magnetic card and magnetic card identification - Google Patents
Magnetic card and magnetic card identificationInfo
- Publication number
- JPH03272896A JPH03272896A JP2071840A JP7184090A JPH03272896A JP H03272896 A JPH03272896 A JP H03272896A JP 2071840 A JP2071840 A JP 2071840A JP 7184090 A JP7184090 A JP 7184090A JP H03272896 A JPH03272896 A JP H03272896A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic card
- wavelength
- card
- absorbs
- magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000006096 absorbing agent Substances 0.000 claims abstract description 7
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 6
- 239000011358 absorbing material Substances 0.000 claims abstract description 5
- 230000001678 irradiating effect Effects 0.000 claims abstract 2
- 239000000843 powder Substances 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 2
- 229910052692 Dysprosium Inorganic materials 0.000 abstract 1
- 229910052772 Samarium Inorganic materials 0.000 abstract 1
- 229910052769 Ytterbium Inorganic materials 0.000 abstract 1
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 abstract 1
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 abstract 1
- 239000000049 pigment Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 244000062793 Sorghum vulgare Species 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000019713 millet Nutrition 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- UZLYXNNZYFBAQO-UHFFFAOYSA-N oxygen(2-);ytterbium(3+) Chemical compound [O-2].[O-2].[O-2].[Yb+3].[Yb+3] UZLYXNNZYFBAQO-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229940075624 ytterbium oxide Drugs 0.000 description 1
- 229910003454 ytterbium oxide Inorganic materials 0.000 description 1
Landscapes
- Credit Cards Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
［ｊ７ｒ′粟りの利用分野］
本発明は、希土類元素から成る赤外線吸収材料を、印刷
または、塗布することにより真偽を判別するカードに関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of use of j7r' millet] The present invention relates to a card whose authenticity can be determined by printing or coating an infrared absorbing material made of a rare earth element.
［従来の技術］
磁気カー）・は、キャシェレス、交通関係の力Ｆ、自動
販売機用カー ド等幅広く利用されている。[Prior Art] Magnetic cars are widely used in cashless systems, transportation-related systems, and vending machine cards.
これにともない、磁気カードの偽造防止に関する対策が
ま１ます重要性を増してきている。Along with this, measures to prevent counterfeiting of magnetic cards are becoming even more important.
一方、偽造防止に関する従来技術としては、記録（Ｍ号
により行う方法、磁気バーコード等との併自により行う
方法、種々の方法か用いられＣいる。On the other hand, as conventional techniques for preventing counterfeiting, various methods are used, including a method using recording (M), a method using a magnetic bar code, etc.
［発明が解決１．ようする課題］
しかしながら、従来の技術は、視認可能であるこεから
、容易に偽造されて【７まう欠点があった。[Invention solves the problem 1. [Problems to be Solved] However, the conventional technology has the disadvantage that it is easily forged because it is visible.
そこで、本発明の技術的課題は、上記欠点に鑑み、視認
不能な新しく１方法を提供すること仁ある。SUMMARY OF THE INVENTION In view of the above drawbacks, the technical object of the present invention is to provide a new method that is invisible.
［課題を解決するための１段］
本発明によれば、表部の少くとも一部に、予め定められ
た波長を吸収する波長吸収材を、設けて成ることを特徴
とする磁気カー ドが得られる。[First Step to Solve the Problems] According to the present invention, there is provided a magnetic card characterized in that a wavelength absorbing material that absorbs a predetermined wavelength is provided on at least a part of the front surface. can get.
本発明によれば、前記波長吸収体は、赤外線を吸収する
こεを特徴とする磁気カードか得らオ］る。According to the present invention, the wavelength absorber is obtained from a magnetic card characterized by absorbing infrared rays.
本発明によれば、前記波長吸収体は少くとも１種の希土
類元素を自することを特徴とする磁気カードが得られる
。According to the present invention, there is obtained a magnetic card characterized in that the wavelength absorber contains at least one kind of rare earth element.
本発明によれば、前記波長吸収体は、平均粒径０．０１
〜・１０μ露の粉状を星するこεを特徴とする磁気カー
ドが得られる。According to the present invention, the wavelength absorber has an average particle size of 0.01
A magnetic card is obtained which is characterized by a powdery star of ~.10μ.
本発明によれば、前記いずれかの磁気カー １・に所定
波長の赤外線を照射して、当該赤外線の吸収量を測定し
、測定した吸収量に基づいて、磁気カードの目地を識別
することを特徴とする磁気カドの識別方法が得られる。According to the present invention, one of the magnetic cards 1. is irradiated with infrared rays of a predetermined wavelength, the amount of absorption of the infrared rays is measured, and the joints of the magnetic card are identified based on the measured amount of absorption. A method for identifying characteristic magnetic edges is obtained.
ここで、９００ ｎｉ以りの光を吸収する希土類元素は
、イッテリじラムＹｂ１ジスブ［７シ１７ムＤＶ。Here, the rare earth element that absorbs light of 900 ni or more is Yb1D [7Shi17MDV].
→ノマリウムＳ ｍ等かあげられるが、これらの元素は
一般に入ｆが非常に剣Ｌ ＜、これらσ）尾素をカード
に４＃？１１′Ｌ 、かつ、セ゛／サーにより真偽を判
別ずれば、偽造時ｈｆのφ゛要な手段となると考えられ
る。→ Nomarium S M etc. can be mentioned, but these elements are generally very sword L <, these σ) 4# with the tail element on the card? 11'L, and if the authenticity is determined by a sensor/cer, it is considered that φ of hf at the time of forgery becomes an essential means.
「実施例］ 息子、本発明の実施例を図翻を参照じマ、説明する。"Example] Embodiments of the present invention will now be described with reference to illustrations.
実施例（１）
第１図のような磁気カー ドの印刷面も１．＜は磁性間
に酸化イッテリビウムｙｂ２ｏ：＋の粉末を顔料とする
インキを、第２図（１）よ・うに、厚さ３〜・５μに印
刷する。Example (1) The printed surface of a magnetic card as shown in Figure 1 is also 1. Ink containing ytterbium oxide yb2o:+ powder as a pigment between magnetic layers is printed to a thickness of 3 to 5 μm as shown in FIG. 2 (1).
その際のインキのＩｌｌ或は、Ｙｂ２０３粉末４０ｗｔ
％、メジウム４０νｔ９「）、自機溶剤２０ｗｔ％であ
る。At that time, ink Ill or Yb203 powder 40wt
%, medium 40 νt9''), and autosolvent 20 wt%.
９７４間の赤外波長の発光センサーにより、第２図（１
）のインキ領域に光をあて、その反射光をセンサーによ
り受光する。インキ中に含まれるＹｂは、赤外波長の９
７４ ｎｍにピーク両吸収波長を有するため、９７４．
ｎｉの光をあてるとこの波長の光が、吸収されること
になる。この光の吸収を感知することにより磁気カード
０真偽を明らかにし１偽追を防止゛Ｃきる。A luminescent sensor with an infrared wavelength between 974 and 974
) and the reflected light is received by the sensor. Yb contained in the ink has an infrared wavelength of 9
Since it has both peak absorption wavelengths at 74 nm, it is 974.
When light of ni is applied, light of this wavelength will be absorbed. By sensing the absorption of this light, the authenticity of the magnetic card 0 can be revealed and fraud can be prevented.
実施例（Ｉｌｌ）
第１図のように、磁気カードの印刷［ｆ１］らしくは、
磁性面に、酸化イツテリヒ゛ウムＹｂ２０□と酸化チタ
ン’ｒ ｉ ０２の粉末を顔料とするインキを、第２図
（１）ように印刷する。その際のインキの組成は、Ｙ
ｂ ２０３粉末２０ｗｔ％、Ｔ ｉ Ｏ、、粉末２０ｖ
ｔ％、メジウム４０ｖ↑％、有機溶剤２０νｔ９°であ
る。Example (Ill) As shown in Figure 1, printing of a magnetic card [f1] seems to be,
Ink containing powders of iterium oxide Yb20□ and titanium oxide 'r i 02 as pigments is printed on the magnetic surface as shown in FIG. 2 (1). The composition of the ink at that time was Y
b 203 powder 20wt%, T i O,, powder 20v
t%, medium 40v↑%, organic solvent 20vt9°.
実施例（１）と同様に、９７４ ｎｉの赤外波長の光を
印刷部にあてると、インキ中のｙｂに吸収されるため、
これを感知するこ已により磁気カードの真偽を明らかに
し、偽造を防止できる。As in Example (1), when light with an infrared wavelength of 974 ni is applied to the printing area, it is absorbed by the yb in the ink, so
By sensing this, the authenticity of the magnetic card can be revealed and counterfeiting can be prevented.
実施例（ｍ）
実施例（１）、（ＩＮ）で使用しまたＹｂの代りに、９
０８■の赤外波長の光を吸収するジスブロジ巾ムＬ）ｙ
を使用する。Example (m) Used in Examples (1) and (IN) and in place of Yb, 9
Diagram width L)y that absorbs light with an infrared wavelength of 08■
use.
酸化ジスブＵジウムＤｙ、Ｏ，、の粉末を、顔料、！す
るイ゛、・４−を、第２図（２）のように、印判する。Powder of disubium oxide Dy, O,, pigment,! Make a seal of ・4- as shown in Figure 2 (2).
その欧０インキの組成は、Ｄ ｙ ２ （’、） ３粉
末１３ｆ−、）ｖｔ％、ウレタン系樹脂′３０シ１９ｏ
、何機溶剤４０Ｗ ｆＯｔ：ｉである。印刷部に９０８
ｎｍの赤外波長の光をあＣると、吸収されるためこ第１
を感知することによ０、磁気カードの真偽を明らかに（
、偽造を肋正できる。The composition of the Europe 0 ink is D y 2 (',) 3 powder 13f-,)vt%, urethane resin '30 19o
, how many solvents 40W fOt:i. 908 in the printing department
When light with an infrared wavelength of nm is absorbed, the first
By sensing 0, the authenticity of the magnetic card is revealed (
, can correct forgeries.
尚、磁気カードの他、切符、回数券、定期券、等にも、
見、用できる。In addition to magnetic cards, tickets, coupons, commuter passes, etc.
You can see and use it.
Ｌ発明の効果］
以上、述べたごとく、本発明によれば高度なセ４ユリテ
ィを持−った磁気カードの提供がＦｉｌ能となＺ）。[Effects of the Invention] As described above, according to the present invention, it is possible to provide a magnetic card with high security.
第１図は、印刷的の磁気カー１−’の正面図、第２図は
、印刷後の磁気カードの正面図を示す。FIG. 1 shows a front view of the printed magnetic card 1-', and FIG. 2 shows a front view of the magnetic card after printing.
Claims (1)
する波長吸収材を設けて成ることを特徴とする磁気カー
ド。 ２）第１請求項記載の磁気カードにおいて、前記波長吸
収体は、赤外線を吸収することを特徴とする磁気カード
。 ３）第２請求項記載の磁気カードにおいて、前記波長吸
収体は少くとも１種の希土類元素を有することを特徴と
する磁気カード。 ４）第３請求項記載の磁気カードにおいて、前記波長吸
収体は、平均粒径０．０１〜１０μｍの粉状を呈するこ
とを特徴とする磁気カード。 ５）第１〜第４請求項記載のいずれかの磁気カードに所
定波長の赤外線を照射して、当該赤外線の吸収量を測定
し、測定した吸収量に基づいて、磁気カードの自他を識
別することを特徴とする磁気カードの識別方法。[Claims] 1) A magnetic card characterized in that a wavelength absorbing material that absorbs a predetermined wavelength is provided on at least a portion of the surface of the magnetic card. 2) The magnetic card according to claim 1, wherein the wavelength absorber absorbs infrared rays. 3) The magnetic card according to claim 2, wherein the wavelength absorber contains at least one kind of rare earth element. 4) The magnetic card according to claim 3, wherein the wavelength absorber is in the form of powder with an average particle size of 0.01 to 10 μm. 5) Irradiating the magnetic card according to any one of claims 1 to 4 with infrared rays of a predetermined wavelength, measuring the amount of absorption of the infrared rays, and identifying the magnetic card as its own or other based on the measured amount of absorption. A magnetic card identification method characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2071840A JP2622890B2 (en) | 1990-03-23 | 1990-03-23 | Magnetic card and magnetic card identification method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2071840A JP2622890B2 (en) | 1990-03-23 | 1990-03-23 | Magnetic card and magnetic card identification method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03272896A true JPH03272896A (en) | 1991-12-04 |
| JP2622890B2 JP2622890B2 (en) | 1997-06-25 |
Family
ID=13472144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2071840A Expired - Lifetime JP2622890B2 (en) | 1990-03-23 | 1990-03-23 | Magnetic card and magnetic card identification method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2622890B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6420663A (en) * | 1987-07-15 | 1989-01-24 | Nec Corp | Manufacture of semiconductor device |
| JPS6480594A (en) * | 1987-09-24 | 1989-03-27 | Fujimori Kogyo Co | Magnetic recording card |
-
1990
- 1990-03-23 JP JP2071840A patent/JP2622890B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6420663A (en) * | 1987-07-15 | 1989-01-24 | Nec Corp | Manufacture of semiconductor device |
| JPS6480594A (en) * | 1987-09-24 | 1989-03-27 | Fujimori Kogyo Co | Magnetic recording card |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2622890B2 (en) | 1997-06-25 |
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