JPH0432444B2 - - Google Patents
Info
- Publication number
- JPH0432444B2 JPH0432444B2 JP57029256A JP2925682A JPH0432444B2 JP H0432444 B2 JPH0432444 B2 JP H0432444B2 JP 57029256 A JP57029256 A JP 57029256A JP 2925682 A JP2925682 A JP 2925682A JP H0432444 B2 JPH0432444 B2 JP H0432444B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- transfer tape
- magnetic layer
- mold
- concave
- 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.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
Landscapes
- Manufacturing Of Magnetic Record Carriers (AREA)
Description
この発明は磁気定期券、貯金磁気カード、貯金
磁気通帳などの磁気記録媒体の製造方法に係り、
とくに基体に磁性層を転写する方法に関する。
被転写物である塩化ビニルなどからなる基体上
に磁性層を転写する方法として、磁気転写テープ
への押し当て面側が水平面とされた加熱金型を用
いて転写する方法が知られている。この方法を第
１図および第２図を用いて説明する。
１は転写装置で、ヒータを内蔵した加熱板２
と、この加熱板２に取付けられた水平面３ａを有
する加熱金型３とから構成されている。４は塩化
ビニルなどの合成樹脂からなる基体、５は磁気転
写テープで、ベース６上に離型層７を介して感熱
接着剤を含む磁性層８が付着されている。
上記構成において、基体４の所定箇所に磁気転
写テープ５を位置決め固定した後、転写装置１を
押し下げて、その加熱金型３により磁気転写テー
プ５を基体４上に加熱加圧すれば、加熱金型３で
加熱加圧された部分の磁性層８のみが基体４上に
融着され、その後磁気転写テープ５を基体４上か
ら剥離すると、第３図に示すように、基体４の所
定箇所に加熱金型３の長さと等しい長さの磁性層
８のみが転写される。
しかしながら、このような転写方法で転写され
る磁性層８は、第３図に示すように、長手方向の
両端部において切れが悪いという現象がみられ
た。また、第３図に示すほどの切れの悪さではな
いにしても、少なくとも第４図に示されるような
エツジ切れをおこすのが一般であつた。そこで、
この現象が生じる原因を検討した結果、前記加熱
金型３では磁気転写テープ５への押し当て面側が
水平面３ａとされていることから、転写時に、剥
離力が前記両端部に集中しやすく、このため両端
部の接着力を中央部に比べて大きくする必要があ
ることが判明した。
この発明はこの点に鑑みてなされたもので、そ
の目的は、基体上に転写される磁性層の両端部の
切れを良好にして常に良品質の磁気記録媒体を得
ることのできる製造方法を提供することにある。
この目的を達成するために、この発明は、長手
方向に凹状断面を有する加熱金型を用いたたこと
を特徴とするものである。すなわち、この発明法
は、加熱金型３′として、磁気転写テープへの押
し当て面３′ｂ側がその両端部９，１０から中央
部１１にかけて凹状とされ、かつ両端部９，１０
間の距離をＡ、中央部１１の凹状深さをＢとした
とき、10-3≦Ｂ／Ａ≦10-2の範囲にあるような凹
状断面を持つた加熱金型を用いて転写することを
要旨とし、その他、使用する転写装置１、基体
４、磁気転写テープ５等は前述の転写方法と全く
同じである。
上述の如き特定の凹状断面を持つた加熱金型
３′によると、その両端部９，１０が中央部１１
側よりも磁気転写テープに対して強く押し当たる
こととなるため、第２図の場合と同様の要領で、
上記金型３′を用いて基体４上に磁気転写テープ
５を加熱加圧することにより、磁性層８の端縁が
確実に融着され、第６図に示すように、その両端
部の切れが良好な状態で基体４上に転写される。
しかも、中央部１１の凹状深さが前述の範囲内に
設定されているため、中央部側の転写性が悪くな
るという欠陥も生じず、ストライプ全長にわたつ
て異常なく転写することができる。
つぎの表は、前記Ｂ／Ａを種々変化させて、エ
ツジ切れと全体の転写性とを実験的に調べた結果
を示したものである。なお、エツジの切れは、第
３図のような状態となる場合を×、第４図に示さ
れる状態となる場合を△、第６図に示される状態
となる場合を〇と評価した。また、全体の転写性
は、全長にわたつて異常なく転写されている場合
を〇、中央部側が転写不充分となる場合を×と評
価した。
This invention relates to a method for manufacturing magnetic recording media such as magnetic commuter passes, magnetic savings cards, magnetic savings passbooks, etc.
In particular, it relates to a method of transferring a magnetic layer to a substrate. As a method of transferring a magnetic layer onto a substrate made of vinyl chloride or the like, which is an object to be transferred, there is a known method of transferring using a heated mold whose surface that is pressed against a magnetic transfer tape has a horizontal surface. This method will be explained using FIGS. 1 and 2. 1 is a transfer device, and heating plate 2 has a built-in heater.
and a heating mold 3 having a horizontal surface 3a attached to the heating plate 2. 4 is a base made of synthetic resin such as vinyl chloride, 5 is a magnetic transfer tape, and a magnetic layer 8 containing a heat-sensitive adhesive is adhered onto the base 6 via a release layer 7. In the above configuration, after positioning and fixing the magnetic transfer tape 5 at a predetermined location on the base 4, the transfer device 1 is pushed down and the heating mold 3 heats and presses the magnetic transfer tape 5 onto the base 4. Only the portion of the magnetic layer 8 heated and pressurized by the mold 3 is fused onto the base 4, and when the magnetic transfer tape 5 is then peeled off from the base 4, it is bonded to a predetermined location on the base 4, as shown in FIG. Only the magnetic layer 8 having a length equal to the length of the heating mold 3 is transferred. However, as shown in FIG. 3, the magnetic layer 8 transferred by such a transfer method had a phenomenon in which it was difficult to cut the magnetic layer 8 at both ends in the longitudinal direction. Furthermore, even if the cutting is not as bad as shown in FIG. 3, it is common for the edges to break at least as shown in FIG. 4. Therefore,
As a result of examining the cause of this phenomenon, it was found that since the surface side of the heating mold 3 that is pressed against the magnetic transfer tape 5 is a horizontal surface 3a, the peeling force is likely to be concentrated at both ends during transfer. Therefore, it was found that the adhesive strength at both ends needed to be greater than that at the center. The present invention has been made in view of this point, and its purpose is to provide a manufacturing method that can consistently obtain high-quality magnetic recording media by ensuring good cutting at both ends of the magnetic layer transferred onto the substrate. It's about doing. In order to achieve this object, the present invention is characterized by the use of a heating mold having a concave cross section in the longitudinal direction. That is, in this invention method, the heating mold 3' has a surface 3'b side that presses against the magnetic transfer tape is concave from both ends 9, 10 to a central part 11, and both ends 9, 10 are concave.
Transfer using a heated mold having a concave cross section in the range of 10 -3 ≦B/A≦10 -2 , where A is the distance between the two and B is the concave depth of the central portion 11. Other than that, the transfer device 1, substrate 4, magnetic transfer tape 5, etc. used are exactly the same as the transfer method described above. According to the heating mold 3' having a specific concave cross section as described above, both ends 9 and 10 are connected to the central part 11.
Since it will press harder against the magnetic transfer tape than the side, follow the same procedure as in Figure 2.
By heating and pressing the magnetic transfer tape 5 onto the base 4 using the mold 3', the edges of the magnetic layer 8 are reliably fused, and as shown in FIG. The image is transferred onto the substrate 4 in good condition.
In addition, since the depth of the concave portion of the center portion 11 is set within the above-mentioned range, there is no defect that the transferability of the center portion becomes poor, and the entire length of the stripe can be transferred without any abnormality. The following table shows the results of an experimental investigation of edge breakage and overall transferability by varying the B/A. Note that the edge breakage was evaluated as × when the state shown in FIG. 3 was obtained, Δ when the state was shown in FIG. 4, and ○ when the state was shown in FIG. 6. In addition, the overall transferability was evaluated as ``Good'' if the image was transferred over the entire length without any abnormality, and ``Poor'' if the transfer was insufficient on the center side.
【表】
以上詳述したとおり、この発明によれば、特定
の凹状断面を有する加熱金型を用いることによ
り、エツジ切れがなくしかも全体にわたつて良好
に転写された磁性層を有する磁気記録媒体の製造
が可能となる。[Table] As detailed above, according to the present invention, by using a heating mold having a specific concave cross section, a magnetic recording medium having a magnetic layer without edge breakage and with good transfer over the entire area can be obtained. It becomes possible to manufacture
第１図は従来の磁気記録媒体の製造方法を説明
するための側面図、第２図は第１図の−線に
沿つた断面図、第３図は上記従来法で製造された
磁気記録媒体の平面図、第４図は上記従来法で製
造された磁気記録媒体における転写磁性層の異な
る性状を示す平面図、第５図はこの発明の製造方
法に用いる加熱金型を説明するための断面図、第
６図はこの発明の製造方法によつて得られた磁気
記録媒体の一例を示す平面図である。
３′…加熱金型、３′ｂ…押し当て面、４…基
体、５…磁気転写テープ、８…磁性層、９，１０
…両端部、１１…中央部、Ａ…両端部間の距離、
Ｂ…中央部の凹状深さ。
FIG. 1 is a side view for explaining a conventional method for manufacturing a magnetic recording medium, FIG. 2 is a cross-sectional view taken along the - line in FIG. 1, and FIG. 3 is a magnetic recording medium manufactured by the above-mentioned conventional method. FIG. 4 is a plan view showing different properties of the transferred magnetic layer in the magnetic recording medium manufactured by the conventional method, and FIG. 5 is a cross-sectional view for explaining the heating mold used in the manufacturing method of the present invention. 6 are plan views showing an example of a magnetic recording medium obtained by the manufacturing method of the present invention. 3'... Heating mold, 3'b... Pressing surface, 4... Substrate, 5... Magnetic transfer tape, 8... Magnetic layer, 9, 10
...both ends, 11...center, A...distance between both ends,
B...Concave depth at the center.
Claims (1)
配置し、この上から加熱金型を押し当てて上記磁
性層を上記基体上に転写するに当たり、上記加熱
金型として、磁気転写テープへの押し当て面側が
その両端部から中央部にかけて凹状とされ、かつ
両端部間の距離をＡ、中央部の凹状深さをＢとし
たとき、10-3≦Ｂ／Ａ≦10-2の範囲に設定された
加熱金型を用いることを特徴とする磁気記録媒体
の製造方法。1. A magnetic transfer tape having a magnetic layer is placed on a substrate, and when a heating mold is pressed from above to transfer the magnetic layer onto the substrate, the heating mold is used to press the magnetic transfer tape against the magnetic transfer tape. When the contact surface side is concave from both ends to the center, and the distance between both ends is A, and the depth of the concave at the center is B, set in the range of 10 -3 ≦B/A≦10 -2. A method of manufacturing a magnetic recording medium, characterized by using a heated mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2925682A JPS58146032A (en) | 1982-02-25 | 1982-02-25 | Manufacture of magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2925682A JPS58146032A (en) | 1982-02-25 | 1982-02-25 | Manufacture of magnetic recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58146032A JPS58146032A (en) | 1983-08-31 |
| JPH0432444B2 true JPH0432444B2 (en) | 1992-05-29 |
Family
ID=12271190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2925682A Granted JPS58146032A (en) | 1982-02-25 | 1982-02-25 | Manufacture of magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58146032A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5950155B2 (en) * | 1979-06-20 | 1984-12-06 | 岩崎通信機株式会社 | Dial pulse relay system in button telephone equipment |
-
1982
- 1982-02-25 JP JP2925682A patent/JPS58146032A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58146032A (en) | 1983-08-31 |
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