JPS63220421A - Base film for magnetic card - Google Patents
Base film for magnetic cardInfo
- Publication number
- JPS63220421A JPS63220421A JP20861887A JP20861887A JPS63220421A JP S63220421 A JPS63220421 A JP S63220421A JP 20861887 A JP20861887 A JP 20861887A JP 20861887 A JP20861887 A JP 20861887A JP S63220421 A JPS63220421 A JP S63220421A
- Authority
- JP
- Japan
- Prior art keywords
- film
- titanium dioxide
- films
- contg
- base film
- 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
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 19
- 239000006229 carbon black Substances 0.000 claims abstract description 14
- 229920006267 polyester film Polymers 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 abstract description 9
- 230000003287 optical effect Effects 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 7
- 238000010030 laminating Methods 0.000 abstract description 3
- 239000002344 surface layer Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 239000003973 paint Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Magnetic Record Carriers (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、磁気カード用ベースフィルムに関するもので
、ざらに詳しくは磁気信号と共に光学信号をも記録する
ことができ、しかも鮮明な印刷を施すことができる磁気
カード用ベースフィルムに関するものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a base film for magnetic cards, and more specifically, it is capable of recording optical signals as well as magnetic signals, and is capable of providing clear printing. The present invention relates to a base film for magnetic cards that can be used as a base film for magnetic cards.
従来、磁気信号と光学信号の２信号を記録させるには、
透明なベースフィルムに光透過率の小さい塗料を塗布し
その上に磁性剤を塗布するか、又は染料入りのベースフ
ィルムに磁性剤を塗布した磁気カードを形成し、磁性剤
の塗布面には磁気信号を、またカード自体には小孔を穿
孔して光学信号をそれぞれ記録していた。Conventionally, in order to record two signals, a magnetic signal and an optical signal,
A magnetic card is formed by applying a paint with low light transmittance to a transparent base film and then applying a magnetic agent on top of it, or by applying a magnetic agent to a dye-containing base film. A small hole was punched in the card itself to record optical signals.
しかしながら、かかる従来の磁気カード用ベースフィル
ムには次の欠点があった。However, such conventional base films for magnetic cards have the following drawbacks.
すなわち、べＬスフイルムに光透過率の小ざい塗料を塗
布したものは、塗布面に擦り傷が生じた場合、遮光性が
低下し、誤った光学信号が検知されるという欠点があっ
た。また、磁性剤を塗布する工程とは別に、遮光材を塗
布する工程が必要であり、煩雑になり加工コストが増加
するという問題もあった。That is, a base film coated with a paint having a low light transmittance has the disadvantage that when scratches occur on the coated surface, the light-shielding property is reduced and an erroneous optical signal is detected. In addition, a process of applying a light shielding material is required in addition to the process of applying a magnetic agent, which is complicated and increases processing costs.
また、遮光材としては一般にカーボンブラックが用いら
れるが、遮光材としてカーボンブラックを用いた場合は
、磁気カードに印刷を施そうとしても、該ベースフィル
ム自体が黒色に着色しているので、鮮明な印刷を得るこ
とができなかった。In addition, carbon black is generally used as a light shielding material, but when carbon black is used as a light shielding material, even if you try to print on a magnetic card, the base film itself is colored black, so you cannot print clearly. Couldn't get it printed.
本発明の目的は、かかる従来技術の欠点を解消せしめ、
表面に擦り傷が生じても誤った光学信号を生じることが
なく、かつ鮮明な印刷を施すことができるる磁気カード
用ベースフイ°ルムを提供するものである。The purpose of the present invention is to eliminate the drawbacks of such prior art,
To provide a base film for a magnetic card, which does not generate erroneous optical signals even if scratches occur on the surface and can print clearly.
本発明は、かかる目的を達成するため、次の構成、すな
わち、カーボンブラックを混入せしめたポリエステルフ
ィルムＢの両面に、二酸化チタンを０．５１ｕｉ％以上
混入せしめたポリエステルフィルムＡを積層せしめたこ
とを特徴とする磁気カード用ベースフィルム、を特徴と
するものである。In order to achieve the above object, the present invention has the following configuration, namely, a polyester film A containing 0.51 ui% or more of titanium dioxide is laminated on both sides of a polyester film B containing carbon black. The present invention is characterized by a base film for magnetic cards.
本発明に適用きれるポリエステルとしては、ポリエチレ
ンテレフタレート（以下ｒＰＥＴＪという。）又はポリ
エチレン−２，６−ナフタレートが好適である。しかし
ながら、本発明の目的を損なわない限り、エステル結合
以外の結合が導入されたものや他の重合体が３０重量％
以下混入されたものを用いることができ、帯電防止剤等
の添加剤も必要に応じて添加することができる。As the polyester applicable to the present invention, polyethylene terephthalate (hereinafter referred to as rPETJ) or polyethylene-2,6-naphthalate is suitable. However, as long as the purpose of the present invention is not impaired, 30% by weight of polymers with bonds other than ester bonds or other polymers may be used.
The following mixtures can be used, and additives such as antistatic agents can also be added as necessary.
本発明のカーボンブラックを混入せしめたポリエステル
フィルムＢは、上記ポリエステルにカーボンブラックを
混入せしめたフィルムで、カーボンブラックの混入量は
フィルムの光線透過率が光源の波長を９０００人とした
とき５０％以下、好ましくは１０％以下、さらに好まし
くは１％以下となるような母である。具体的には、ポリ
エステルフィルムＢの厚みによっても異なるが、カーボ
ンブラックの混入量は通常０．３重量％以上であり、好
ましくは０．５重旦％以上１０％重量以下である。Polyester film B mixed with carbon black of the present invention is a film made by mixing carbon black into the above-mentioned polyester, and the amount of carbon black mixed in is 50% or less when the light transmittance of the film is assumed to be 9000 people at the wavelength of the light source. , preferably 10% or less, more preferably 1% or less. Specifically, although it varies depending on the thickness of the polyester film B, the amount of carbon black mixed is usually 0.3% by weight or more, preferably 0.5% by weight or more and 10% by weight or less.
なお、このフィルムＢは、二輪方向又はフィルムの長手
方向に配向している方が望ましいが、配向していなくて
もよい。Although it is preferable that this film B be oriented in the two-wheel direction or in the longitudinal direction of the film, it does not have to be oriented.
また、本発明の二酸化チタンを混入せしめたポリエステ
ルフィルムＡは、上記ポリエステルを少なくとも一軸方
向に延伸したもので、好ましくは二輪に延伸したフィル
ムであって、二酸化チタンを０．５重量％以上混入する
ことが必要である。Further, the polyester film A mixed with titanium dioxide of the present invention is a film obtained by stretching the above-mentioned polyester in at least one axis direction, preferably two wheels, and contains 0.5% by weight or more of titanium dioxide. It is necessary.
二酸化チタンの混入量の上限は特に限定するものではな
いが、好ましくは１５重量％以下であり、また、フィル
ムＡの厚みは片側２０μｍ以上であることが好ましい。Although the upper limit of the amount of titanium dioxide mixed is not particularly limited, it is preferably 15% by weight or less, and the thickness of the film A is preferably 20 μm or more on one side.
二酸化チタンの混入量が０゜５重量％より少ない場合、
白皮が不十分であり印刷の鮮明性が損なわれる。一方、
１５重量％を超えると、フィルムの延伸性が損なわれる
ので好ましくない。フィルムＡが片側２０μｍより薄い
場合は、二酸化チタン混入量が１５重量％であっても、
白皮が不充分になる傾向があるので好ましくない。なお
、フィルムＢには、カーボンブラックを混入すべきでな
い。二酸化チタン混入の効果を阻害するからである。If the amount of titanium dioxide mixed is less than 0.5% by weight,
The whiteness is insufficient and the clarity of the print is impaired. on the other hand,
If it exceeds 15% by weight, the stretchability of the film will be impaired, which is not preferable. If film A is thinner than 20 μm on one side, even if the amount of titanium dioxide mixed is 15% by weight,
This is not preferred because the white skin tends to be insufficient. Note that film B should not contain carbon black. This is because it inhibits the effect of mixing titanium dioxide.
フィルムの積層方法は、フィルムＡ及びフィルムＢの両
者が溶融状態にあるとき積層されるのが最も好ましいが
、特に限定されるものでなく、通常の積層フィルムを得
る方法であればいずれの方法であってもよい。The method of laminating the films is most preferably laminated when both Film A and Film B are in a molten state, but there is no particular limitation, and any method for obtaining a normal laminated film may be used. There may be.
上記のようにして積層された磁気カード用ベースフィル
ムには、通常使用される磁性剤が塗布されて磁気カード
が形成される。この磁気カードには、磁気信号の伯に、
小孔を穿孔して光学信号も記録することができ、また、
表面層は二酸化チタンにより白色となっているため、必
要に応じて片面又は両面に印刷を施し鮮明な印刷カード
となすことができる。The magnetic card base film laminated as described above is coated with a commonly used magnetic agent to form a magnetic card. This magnetic card has a magnetic signal,
Optical signals can also be recorded by drilling small holes, and
Since the surface layer is white due to titanium dioxide, it is possible to print on one or both sides of the card as necessary to create a clearly printed card.
以下、実施例に基づいて本発明の実施態様を説明する。 Hereinafter, embodiments of the present invention will be described based on Examples.
実施例１
カーボンブラックを０．３重１％混入したＰＥＴを中間
層とし、両側に二酸化チタンを１重口％混入した白色Ｐ
ＥＴ層を溶融積層し、二軸延伸、熱固定後、厚み２５０
μｍの地下鉄切符の磁気カード用ベースフィルムを得た
。厚み比率は７５／１００／７５（μｍ）である。Example 1 White PET with 0.3 weight 1% carbon black mixed in as an intermediate layer and titanium dioxide mixed in 1 weight % on both sides.
After melting and laminating the ET layer, biaxially stretching and heat setting, the thickness is 250
A base film for magnetic cards of μm subway tickets was obtained. The thickness ratio is 75/100/75 (μm).
比較例１
比較のため、二酸化チタンを１重口％混入した厚み２５
０μｍの単層白色フィルムを１４だ。Comparative Example 1 For comparison, thickness 25 with 1% titanium dioxide mixed
0μm single layer white film is 14.
比較例２
比較のため、カーボンブラックを０．３ｆｆｉｆｆ１％
混入した厚み２５０μｍの単層黒色フィルムを得た。Comparative Example 2 For comparison, carbon black was added at 0.3ffiff1%.
A single-layer black film with a thickness of 250 μm was obtained.
比較例３
実施例１において、二酸化チタンの混入量を０゜３重１
％とし、それ以外は実施例１と同様に、三層構造の磁気
カード用ベースフィルムを１ｑた。Comparative Example 3 In Example 1, the amount of titanium dioxide mixed was 0°3 times 1
%, and 1 q of a three-layer magnetic card base film was prepared in the same manner as in Example 1 except for the above.
実施例２
実施例１において、二酸化チタンの混入量を１５重但％
、厚み比率を１５／２２０／１５ ＜ａｍ＞とじ、それ
以外は実施例１と同様に、三層構造の磁気カード用ベー
スフィルムを１ｑた。Example 2 In Example 1, the amount of titanium dioxide mixed was 15% by weight.
A three-layer magnetic card base film of 1 q was prepared in the same manner as in Example 1 except that the thickness ratio was 15/220/15 <am>.
実施例３
実施例１において、二酸化チタンの混入量を２０重量％
、厚み比率を１５／２２０／１５ （、ｃｚｍ）とし、
それ以外は実施例１と同様に、三層構造の磁気カード用
ベースフィルムを得た。Example 3 In Example 1, the amount of titanium dioxide mixed was 20% by weight.
, the thickness ratio is 15/220/15 (, czm),
Other than that, a magnetic card base film having a three-layer structure was obtained in the same manner as in Example 1.
これらのフィルムの両面に常法で印刷後、磁性層を帯状
にスタンピング、信号穴加工し、磁気カードを作成し、
その特性を評価した。各フィルムの積層状態、二酸化チ
タン混入量、フィルム光線透過率、延伸性及び磁気カー
ド特性を第１表に示した。After printing on both sides of these films using a conventional method, the magnetic layer is stamped into a band shape and a signal hole is formed to create a magnetic card.
Its characteristics were evaluated. Table 1 shows the laminated state of each film, amount of titanium dioxide mixed, film light transmittance, stretchability, and magnetic card properties.
第１表に示したごとく、比較例１、比較例２、比較例３
は信号トラブル、印刷の出来上がりのいずれかが悪いが
、実施例１は両者共に優れていることが判る。なお、実
施例２は信号トラブルがなく印刷の出来上がりも一応実
用に耐えるものであったが、印刷の鮮明さの点において
若干劣るものであった。また、実施例３は信号トラブル
、印刷の出来上がり共に優れており、磁気カードとして
充分にその特性を満足しているが、フィルム製造の際、
特に二軸延伸する際にフィルム破れが発生し、フィルム
の生産性が若干悪いという欠点が見られた。As shown in Table 1, Comparative Example 1, Comparative Example 2, Comparative Example 3
It can be seen that Example 1 has both poor signal trouble and poor printing quality, but Example 1 is superior in both. In Example 2, there was no signal trouble and the printing quality was good enough for practical use, but the printing clarity was slightly inferior. In addition, Example 3 was excellent in both signal trouble and printing quality, and fully satisfied the characteristics as a magnetic card, but when manufacturing the film,
In particular, film tearing occurred during biaxial stretching, and film productivity was slightly poor.
本発明は、上述したように、カーボンブラックを混入せ
しめたポリエステルフィルムＢの両面に、二酸化チタン
を０．５重量％以上混入せしめたポリエステルフィルム
Ａを積層した磁気カード用ベースフィルムとしたので、
次のごとき優れた効果を奏するものである。As described above, the present invention is a magnetic card base film in which polyester film A containing 0.5% by weight or more of titanium dioxide is laminated on both sides of polyester film B containing carbon black.
It has the following excellent effects.
（１）繰返し使用により、磁性層又は遮光材塗布層に剥
落や擦り傷が生じても、光学信号検出部に誤信号を与え
ない。(1) Even if the magnetic layer or the light-shielding material coating layer is peeled off or scratched due to repeated use, no erroneous signal will be given to the optical signal detection section.
（２）遮光材を塗布する工程が省は簡略化できる。(2) The process of applying the light shielding material can be omitted and simplified.
（３）印刷を施す場合でも、下塗り材を塗布する必要が
なく、工程が簡略化できる。(3) Even when printing is performed, there is no need to apply an undercoat material, which simplifies the process.
Claims (1)
ィルムＢの両面に、二酸化チタンを０．５重量％以上混
入せしめたポリエステルフィルムＡを積層せしめたこと
を特徴とする磁気カード用ベースフィルム。(1) A base film for a magnetic card, characterized in that a polyester film A containing 0.5% by weight or more of titanium dioxide is laminated on both sides of a polyester film B containing carbon black.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20861887A JPS63220421A (en) | 1987-08-21 | 1987-08-21 | Base film for magnetic card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20861887A JPS63220421A (en) | 1987-08-21 | 1987-08-21 | Base film for magnetic card |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16052879A Division JPS5683841A (en) | 1979-12-11 | 1979-12-11 | Base film for magnetic recording |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63220421A true JPS63220421A (en) | 1988-09-13 |
| JPH03700B2 JPH03700B2 (en) | 1991-01-08 |
Family
ID=16559208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20861887A Granted JPS63220421A (en) | 1987-08-21 | 1987-08-21 | Base film for magnetic card |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63220421A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01105740A (en) * | 1987-10-19 | 1989-04-24 | Diafoil Co Ltd | Polyester multilayer film for prepaid card |
| JP2001504396A (en) * | 1996-08-14 | 2001-04-03 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Opaque polyester film as double-sided white coated substrate |
| JP2008062442A (en) * | 2006-09-05 | 2008-03-21 | Mitsubishi Polyester Film Copp | Laminate polyester film |
| JP2009061780A (en) * | 1996-08-14 | 2009-03-26 | Dupont Teijin Films Us Lp | Polyester film |
| US7807240B2 (en) | 1996-08-14 | 2010-10-05 | Dupont Teijin Films U.S. Limited Partnership | Opaque polyester film as substrate with white coatings on both sides |
| DE102010007140A1 (en) | 2010-02-05 | 2011-08-11 | Mitsubishi Polyester Film GmbH, 65203 | Multilayer polyester film with a maximum thickness of 60 μm with two white outer layers and a soot-containing base layer with high optical density |
| US9050785B2 (en) | 2010-02-05 | 2015-06-09 | Mitsubishi Polyester Film Gmbh | Multilayer polyester film with high optical density with a total thickness of max. 60 μm with two white outer layers and a carbon-black containing base layer |
| DE102017006359A1 (en) | 2017-07-06 | 2019-01-10 | Tesa Se | Self-adhesive tape with a split-resistant PET carrier |
-
1987
- 1987-08-21 JP JP20861887A patent/JPS63220421A/en active Granted
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01105740A (en) * | 1987-10-19 | 1989-04-24 | Diafoil Co Ltd | Polyester multilayer film for prepaid card |
| JPH07112730B2 (en) * | 1987-10-19 | 1995-12-06 | ダイアホイルヘキスト株式会社 | Polyester multilayer film for prepaid cards |
| JP2001504396A (en) * | 1996-08-14 | 2001-04-03 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Opaque polyester film as double-sided white coated substrate |
| JP2009061780A (en) * | 1996-08-14 | 2009-03-26 | Dupont Teijin Films Us Lp | Polyester film |
| US7807240B2 (en) | 1996-08-14 | 2010-10-05 | Dupont Teijin Films U.S. Limited Partnership | Opaque polyester film as substrate with white coatings on both sides |
| JP2011136568A (en) * | 1996-08-14 | 2011-07-14 | Dupont Teijin Films Us Lp | Opaque polyester film as substrate with white coatings on both sides |
| JP2008062442A (en) * | 2006-09-05 | 2008-03-21 | Mitsubishi Polyester Film Copp | Laminate polyester film |
| DE102010007140A1 (en) | 2010-02-05 | 2011-08-11 | Mitsubishi Polyester Film GmbH, 65203 | Multilayer polyester film with a maximum thickness of 60 μm with two white outer layers and a soot-containing base layer with high optical density |
| EP2364846A1 (en) | 2010-02-05 | 2011-09-14 | Mitsubishi Polyester Film GmbH | Multi-layer polyester film with high optical density with a total thickness of maximum 60 µ with two white layers and a sooty external layer |
| US9050785B2 (en) | 2010-02-05 | 2015-06-09 | Mitsubishi Polyester Film Gmbh | Multilayer polyester film with high optical density with a total thickness of max. 60 μm with two white outer layers and a carbon-black containing base layer |
| DE102017006359A1 (en) | 2017-07-06 | 2019-01-10 | Tesa Se | Self-adhesive tape with a split-resistant PET carrier |
| WO2019007747A1 (en) | 2017-07-06 | 2019-01-10 | Tesa Se | Self-adhesive tape comprising a pet substrate with high laminar strength |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03700B2 (en) | 1991-01-08 |
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