JPS6037523B2 - Method for manufacturing heat-sensitive magnetic recording paper - Google Patents
Method for manufacturing heat-sensitive magnetic recording paperInfo
- Publication number
- JPS6037523B2 JPS6037523B2 JP51072474A JP7247476A JPS6037523B2 JP S6037523 B2 JPS6037523 B2 JP S6037523B2 JP 51072474 A JP51072474 A JP 51072474A JP 7247476 A JP7247476 A JP 7247476A JP S6037523 B2 JPS6037523 B2 JP S6037523B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- magnetic
- sensitive
- layer
- paper
- 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
Links
Landscapes
- Heat Sensitive Colour Forming Recording (AREA)
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Description
【発明の詳細な説明】 この発明は感熱性磁気記録紙の製造法に関する。[Detailed description of the invention] This invention relates to a method for manufacturing heat-sensitive magnetic recording paper.
一般に感熱紙は現像，定着を必要とせず加熱により簡単
に記録でき、たとえば級基体の片面に発色材料を含ませ
た１層もしくは多層構造の感熱層を形成して上記材料の
加熱熔融による発色反応を利用した感熱紙においては、
普通紙と同様の紙質で鮮やかな記録が得られることから
熱ペン方式の記録紙，感熱プリンタ用記録紙，感熱複写
紙，２色感熱記録紙などとして広く応用されている。In general, thermal paper does not require development or fixing and can be easily recorded by heating. For example, by forming a single or multi-layer thermosensitive layer containing a coloring material on one side of a substrate, a coloring reaction occurs by heating and melting the material. In thermal paper using
Because it produces vivid records with the same quality as plain paper, it is widely used as recording paper for thermal pens, recording paper for thermal printers, thermal copying paper, two-color thermal recording paper, etc.
この発明における感熱性磁気記録紙とは上記感熱紙の感
熱層とは反対の面に磁性粉末を含む磁性層が形成された
もので、これによれば感熱記録とともに磁気記録が可能
となり、秘密情報の記録や再生、盗難もしくは紛失時の
悪用や書類偽造の防止などを図ることができ、前記した
記録紙のほか磁気カード、磁気切符、磁気定期券、磁気
馬券などにも有効に利用できる。このような感熱性磁気
記録紙の製造法として紙基体に感熱層を形成した後に磁
性層を設けるか、或いは逆に磁性層を形成した後に感熱
層を設けるかの２通りの方法が考えられる。The heat-sensitive magnetic recording paper according to the present invention is one in which a magnetic layer containing magnetic powder is formed on the surface opposite to the heat-sensitive layer of the above-mentioned heat-sensitive paper, which enables magnetic recording as well as heat-sensitive recording, and secret information. It can be used to record and reproduce information, to prevent misuse in the event of theft or loss, and to prevent document forgery.In addition to the recording paper described above, it can also be effectively used for magnetic cards, magnetic tickets, magnetic commuter passes, magnetic horse racing tickets, etc. There are two possible methods for manufacturing such heat-sensitive magnetic recording paper: forming a heat-sensitive layer on a paper base and then providing a magnetic layer, or conversely, forming a magnetic layer and then providing a heat-sensitive layer.
後者の方法は感熱層形成時に反対面の磁性層が製造装置
と接触し摩耗により層中の磁性粉末が脱落したり、磁性
層にすり傷などが形成され易く、適切な磁気記録紙を作
ることが困難である。前者の方法は発色材料を含ませた
感熱層を形成したものでも発色材料の層中での結着性は
一般に良好であり、上記したような感熱層の損傷の問題
は少ない。したがって工業的製造法としては前者の方法
を採用した方がよく、この方法によれば市販の感熱紙つ
まり紙基体に任意の感熱層を形成したものを簡単に入手
し、使用できる。In the latter method, when the heat-sensitive layer is formed, the magnetic layer on the opposite side comes into contact with the manufacturing equipment, which causes the magnetic powder in the layer to fall off due to abrasion, and scratches to form on the magnetic layer. is difficult. In the former method, even when a heat-sensitive layer containing a color-forming material is formed, the binding of the color-forming material in the layer is generally good, and there is little problem of damage to the heat-sensitive layer as described above. Therefore, as an industrial manufacturing method, it is better to adopt the former method, and according to this method, commercially available thermal paper, that is, a paper substrate with an arbitrary heat-sensitive layer formed thereon, can be easily obtained and used.
一方この方法で感熱紙に磁性塗料を塗着して磁性層を形
成すると上記塗料の塗布工程や乾燥工程中に感熱層が局
部的もしくは全体に感応し、たとえば発色し、感熱記録
が不鮮明になったり全く不可能になる場合がある。On the other hand, if a magnetic layer is formed by applying magnetic paint to thermal paper using this method, the heat-sensitive layer will become sensitive locally or throughout the paint during the coating and drying process, resulting in, for example, coloring and the thermal recording becoming unclear. Or it may become completely impossible.
この発明者等はこの原因を探究したところ、使用した磁
性塗料がこの種業界において従来汎用されている有機溶
剤系塗料つまり結合剤樹脂を溶解した有機溶剤中に磁性
粉末を混合、分散したものであるため塗料中に含まれる
有機溶剤が紙基体を通して感熱層にまで浸透し、これが
前記の原因となることが判った。The inventors investigated the cause of this problem and found that the magnetic paint used was an organic solvent-based paint conventionally used in this type of industry, that is, magnetic powder was mixed and dispersed in an organic solvent in which binder resin was dissolved. It has been found that because of this, the organic solvent contained in the paint penetrates into the heat-sensitive layer through the paper substrate, which causes the above-mentioned problem.
すなわちたとえば前記発色材料を含ませた感熱層を有す
るものでは、一般に２成分の発色剤を皮膜性の優れた高
分子化合物中に分散、結着させ、感熱記録に当たり両発
色剤を加熱溶融することにより接触させて同加熱下に発
色反応を行なわせるものであるが、前記した塗布工程中
に浸透してくる有機溶剤が発色剤を溶解して両成分を接
触させることがあり、この接触により塗布工程もしくは
乾燥工程において漸次発色してくるものである。That is, for example, in a device having a heat-sensitive layer containing the above-mentioned color-forming material, two color-forming agents are generally dispersed and bound in a polymer compound with excellent film properties, and both color-forming agents are heated and melted during thermal recording. However, the organic solvent that permeates during the coating process may dissolve the coloring agent and cause both components to come into contact with each other. Color develops gradually during the process or drying process.
この発明は、以上の事情に照らして鋭意検討の結果、磁
性塗料として水性ェマルジョン系塗料を使用することに
より鮮明な感熱記録を行なえる感熱性磁気記録紙を製造
できることが判り、なされたものである。第１図はこの
発明法で製造した感熱性磁気記録紙の１例を示したもの
で、感熱紙１として紙基体２の片面３に樹脂製カプセル
に封入される電子供与体と電子受容体とからなる２種の
発色剤Ａ，Ｂを高分子皮膜中に分散、結着させてなる感
熱層４を有するものが用いられ、この感熱紙１の上記感
熱層４とは反対面５に結合材樹脂中にｙ−Ｆｅ２０３粉
末などの磁性粉末を均一に分散、結着した磁性層６が形
成されている。This invention was made based on the results of intensive studies in light of the above circumstances, and it was found that by using a water-based emulsion paint as the magnetic paint, it was possible to produce heat-sensitive magnetic recording paper that could perform clear heat-sensitive recording. . FIG. 1 shows an example of heat-sensitive magnetic recording paper manufactured by the method of the present invention, in which an electron donor and an electron acceptor are encapsulated in a resin capsule on one side 3 of a paper base 2 as a heat-sensitive paper 1. A paper having a heat-sensitive layer 4 formed by dispersing and binding two types of color formers A and B in a polymer film is used, and a binder is applied to the surface 5 of the thermal paper 1 opposite to the heat-sensitive layer 4. A magnetic layer 6 is formed by uniformly dispersing and bonding magnetic powder such as y-Fe203 powder in a resin.
磁性層６の形成は反対面５に水性ェマルジョン系磁性塗
料を塗布し、感熱層４が発色する温度より低い温度下で
乾燥することにより行なう。The magnetic layer 6 is formed by applying a water-based emulsion magnetic paint to the opposite surface 5 and drying it at a temperature lower than the temperature at which the heat-sensitive layer 4 develops color.
水性ヱマルジョン系磁性塗料は水性重合体ヱマルジョン
に磁性粉末を分散，混合したもので、上青己ェマルジョ
ンを構成する重合体つまり磁性粉末を結着すべき結合材
樹脂としては感熱性を有しない一般の磁気切符，磁気カ
ードなどの製造に際して従来の有機溶剤系塗料に用いら
れているものなどが広く適用できる。このような塗料に
よれば、有機溶剤を含まないために塗布液がたとえ紙基
体２より感熱層４に浸透しても発色剤Ａ，Ｂの接触を引
き起すことはほとんどなく塗布工程および乾燥工程中で
の発色現象は認められない。Water-based emulsion-based magnetic paint is made by dispersing and mixing magnetic powder in water-based polymer emulsion, and the binder resin used to bind the polymer, that is, the magnetic powder that makes up the Kamiaoki emulsion, is a general non-heat-sensitive resin. In the production of magnetic tickets, magnetic cards, etc., conventional organic solvent-based paints can be widely applied. According to such a paint, since it does not contain an organic solvent, even if the coating liquid penetrates into the heat-sensitive layer 4 from the paper substrate 2, it hardly causes contact between the color formers A and B, and the coating process and drying process are completed. No coloring phenomenon was observed inside.
第２図はこの方法でつくられた前記感熱性磁気記録紙の
感熱届４に針，ヘッドなどからなる加熱体７を接触させ
、接触部分８中の発色剤Ａ，Ｂを加熱熔融して発色反応
を行なわせたもので、前記の通り磁性層形成時に発色す
ることがないために鮮明な画像が形成される。FIG. 2 shows that a heating element 7 consisting of a needle, a head, etc. is brought into contact with the heat-sensitive paper 4 of the heat-sensitive magnetic recording paper produced by this method, and the color formers A and B in the contact area 8 are heated and melted to develop color. Since the magnetic layer undergoes a reaction and, as mentioned above, does not develop color during the formation of the magnetic layer, a clear image is formed.
以上の通り、この発明法は紙基体に感熱層を形成してな
る感熱路氏を使用し、この感熱紙の感熱層とは反対の面
に水性ェマルジョン系磁性塗料を塗着して磁性層を形成
するものであるから、磁性層を形成した後に感熱層を形
成する方法のように製造工程中に磁性層の損傷をきたさ
ないばかりか、磁性塗料の塗着時に感熱層を損なうおそ
れもなく、鮮明な感熱記録と良好な磁気記録を行ない得
る感熱性磁気記録紙を提供できるものである。As described above, the method of this invention uses a thermal paper with a heat-sensitive layer formed on a paper base, and a water-based emulsion-based magnetic paint is applied to the opposite side of the thermal paper from the heat-sensitive layer to form the magnetic layer. Since it is formed by forming a heat sensitive layer after forming a magnetic layer, there is no risk of damage to the magnetic layer during the manufacturing process, unlike methods that form a heat sensitive layer after forming a magnetic layer, and there is no risk of damaging the heat sensitive layer when applying the magnetic paint. It is possible to provide a heat-sensitive magnetic recording paper that can perform clear heat-sensitive recording and good magnetic recording.
次に実施例によりこの発明を具体的に説明する。なお以
下において部とあるは重量部を示す。実施例スチレン５
碇郡とブタジェン３碇都とアクリル酸５部とからなる共
重合体の固形分濃度４５重量％の水性重合体性ヱマルジ
ョン９６部に、水６碇都と１重量％アンモニア水６＄部
とを加え、さらにｙ−Ｆｅ２０３磁性粉末１００部を加
えてボールミル中で混合，分散して水性ェマルジョン系
磁性塗料を調製する。Next, the present invention will be specifically explained with reference to Examples. In addition, in the following, parts indicate parts by weight. Example styrene 5
To 96 parts of an aqueous polymeric emulsion with a solid content concentration of 45% by weight of a copolymer consisting of Ikarigun, butadiene, 3 Ikarito, and 5 parts of acrylic acid, 6 parts of water and 6 $ parts of 1% by weight ammonia water were added. In addition, 100 parts of y-Fe203 magnetic powder was added and mixed and dispersed in a ball mill to prepare an aqueous emulsion magnetic paint.
厚さ２００仏の紙基体の片面に無色染料（発色剤Ａ：ク
リスタル・バイオレット・ラクトン）とフェノール化合
物（発色剤Ｂ：４，４′−ィソプロピリデンジフェノー
ル）とをそれぞれポリビニルアルコール被膜中に分散，
結着させてなる厚さ６〃の感熱層を有する感熱紙の反対
面に、前記の水性ェマルジョン系磁性塗料を塗布，乾燥
して厚さ３０ムの磁性層を形成し、感熱性磁気切符をつ
くった。この方法によると磁性層形成時に感熱層が発色
することはほとんどなく、切符製造後サーマルヘッドを
感熱層に接触させることにより鮮明な所要パターンを印
字することができた。A colorless dye (color former A: crystal violet lactone) and a phenol compound (color former B: 4,4'-isopropylidene diphenol) were each coated with polyvinyl alcohol on one side of a 200 mm thick paper base. distributed in
The water-based emulsion-based magnetic paint is applied to the opposite side of the thermal paper having the bonded heat-sensitive layer with a thickness of 6〃 and dried to form a magnetic layer with a thickness of 30 mm, and a heat-sensitive magnetic ticket is formed. I made it. According to this method, the heat-sensitive layer hardly develops color during the formation of the magnetic layer, and by bringing the thermal head into contact with the heat-sensitive layer after producing the ticket, it was possible to print a clear desired pattern.
また磁性層の表面状態および層貿などがよいために所定
信号を良好に記録することができた。比較例
実施例において水性ェマルジョン系磁性塗料の代りに塩
化ビニル−酢酸ビニル共重合体からなる従来汎用されて
いる有機溶剤系磁性塗料（有機溶剤：メチルィソブチル
ケトン）を使用し、以下実施例と同様にして感熱性磁気
切符をつくった。In addition, because the surface condition and layer texture of the magnetic layer were good, a given signal could be recorded satisfactorily. Comparative Example In place of the water-based emulsion magnetic paint in the example, a conventionally widely used organic solvent-based magnetic paint (organic solvent: methyl lysobutyl ketone) made of vinyl chloride-vinyl acetate copolymer was used. A heat-sensitive magnetic ticket was made in the same manner.
この方法によると磁性塗料を塗布後乾燥する工程で感熱
層が発色し、サーマルヘッドを接触させても鮮明な所要
パターンを印字することができなかつた。According to this method, the heat-sensitive layer developed color during the drying process after applying the magnetic paint, and it was not possible to print a clear desired pattern even when a thermal head was brought into contact with the layer.
第１図はこの発明法により製造した感熱性磁気記録紙の
１例を示す断面図、第２図は上記の記録紙に感熱記録し
たときの状態を示す断面図である。
２・・・・・・紙基体、３・・・・・・片面、４・・・
・・・感熱層、５・…・・反対面。
第１図
豹２図FIG. 1 is a sectional view showing an example of a heat-sensitive magnetic recording paper manufactured by the method of the present invention, and FIG. 2 is a sectional view showing the state when heat-sensitive recording is performed on the above-mentioned recording paper. 2...Paper base, 3...One side, 4...
...Heat-sensitive layer, 5... Opposite side. Figure 1 Leopard Figure 2
Claims (1)
磁性塗料を調製し、片面に感熱層を形成した紙基体の反
対面に上記の塗料を塗着することを特徴とする感熱性磁
気記録紙の製造法。1. Production of heat-sensitive magnetic recording paper, characterized in that a magnetic paint is prepared by mixing and dispersing aqueous polymer emulsion magnetic powder, and the above-mentioned paint is applied to the opposite side of a paper substrate with a heat-sensitive layer formed on one side. Law.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51072474A JPS6037523B2 (en) | 1976-06-18 | 1976-06-18 | Method for manufacturing heat-sensitive magnetic recording paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51072474A JPS6037523B2 (en) | 1976-06-18 | 1976-06-18 | Method for manufacturing heat-sensitive magnetic recording paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52155506A JPS52155506A (en) | 1977-12-24 |
| JPS6037523B2 true JPS6037523B2 (en) | 1985-08-27 |
Family
ID=13490339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51072474A Expired JPS6037523B2 (en) | 1976-06-18 | 1976-06-18 | Method for manufacturing heat-sensitive magnetic recording paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6037523B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56156927A (en) * | 1980-05-01 | 1981-12-03 | Ricoh Co Ltd | Heat-sensitive record-type magnetic ticket sheet |
| JPS57177235U (en) * | 1981-05-07 | 1982-11-09 | ||
| JPS58128065U (en) * | 1982-02-22 | 1983-08-30 | 大阪シ−リング印刷株式会社 | heat sensitive recording material |
| JPS58160173U (en) * | 1982-04-19 | 1983-10-25 | 大阪シーリング印刷株式会社 | label |
| JPS6233326A (en) * | 1985-08-06 | 1987-02-13 | Tomoegawa Paper Co Ltd | Heat sensitive magnetic recording medium |
| JP2607080B2 (en) * | 1987-04-14 | 1997-05-07 | 日本加工製紙株式会社 | Manufacturing method of magnetic thermosensitive recording paper |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4946922A (en) * | 1972-08-25 | 1974-05-07 |
-
1976
- 1976-06-18 JP JP51072474A patent/JPS6037523B2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4946922A (en) * | 1972-08-25 | 1974-05-07 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52155506A (en) | 1977-12-24 |
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