JPH0470998B2 - - Google Patents
Info
- Publication number
- JPH0470998B2 JPH0470998B2 JP61046265A JP4626586A JPH0470998B2 JP H0470998 B2 JPH0470998 B2 JP H0470998B2 JP 61046265 A JP61046265 A JP 61046265A JP 4626586 A JP4626586 A JP 4626586A JP H0470998 B2 JPH0470998 B2 JP H0470998B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- recording layer
- paper
- color
- heat
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
- Credit Cards Or The Like (AREA)
Description
本発明は、磁気感熱記録紙に関するものであ
る。特に、磁気記録層に印刷可能な磁気感熱記録
紙を提供することを目的とするものである。
従来、原紙上に磁気記録層を設けた磁気記録紙
の他面に感熱記録層を設けた磁気感熱記録紙が、
乗車切符、乗車定期券等磁気乗車券、駐車整理
券、高速道路通行券等に広く利用されている。ま
た、近時では各種カード類にも使用されるように
なつて来た。これは、磁気記録層の情報記憶容量
の大きさ、書き込み情報の読み取りの簡便さ、正
確さ等により自動販売機で処理することが出来、
省力化を可能にしたからであろう。そして、その
他の必要な可視情報は、磁気記録層と反対の面
に、直接印字するか、カーボン熱転写方式、キレ
ート印字方式あるいは感熱記録方式等で印字され
ているが、これらの中では記録機器の構造、取り
扱いあるいは保守の簡便さ等から感熱記録方式が
重用されている。しかるに、従来、磁気記録層
は、磁性粉末による着色によつて印刷については
何等考慮されておらず、選んだ状態になつてい
る。
本発明は、磁気記録層上への印刷の可能性につ
いて検討した結果、水性顔料塗被層を設けても、
磁気特性を何等阻害することなく、また、自動販
売機を想定した発券テストにも全く支障のないこ
とを見出し、完成させたものである。
すなわち、本発明は、原紙の片面に、発色性ロ
イコ染料、該発色性ロイコ染料を熱時発色させる
顕色剤および接着剤を主成分とする感熱染料を塗
液し、感熱記録層を設け、原紙の他面に、磁性粉
末と接着剤とを主成分とする磁性塗料を塗被し、
磁気記録層を設け、さらに該磁気記録層上に、顔
料と接着剤とを主成分とする水性顔料塗料を塗被
し、顔料塗被層を設けたことを特徴とする磁気感
熱記録紙である。
以下、本発明の技術的事項について詳述する。
先づ、原紙としては、坪料40〜300ｇ／m2の上
質紙、加工原紙等を使用することが出来るが、特
に限定はされない。
原紙上に設けられる磁気記録層は、磁性粉末と
接着剤とを主成分とし、磁性粉末としては、γ−
酸化鉄、コバルトで変性したγ−酸化鉄、酸化ク
ローム、バリウムフエライト等を使用することが
出来る。また、接着剤としては、ポリビニルアル
コールのような水溶性接着剤やスチレン・ブタジ
エン共重合体、メチルメタアクリレート・ブタジ
エン共重合体、スチレン・ブタジエン・メチルメ
タアクリレート共重合体、アクリル系樹脂、酢酸
ビニル系樹脂等のラテツクスエマルジヨンあるい
はポリウレタン樹脂、塩化ビニル樹脂、ポリエス
テル樹脂等を使用することが出来る。そして、こ
れら磁性粉末と接着性とを主成分とする磁性塗料
は、水性系あるいは有機溶剤系のいづれかで調製
され供されるが、水性系の方が経済的で好まし
い。有機溶剤としては、トルエン、キシレン、ブ
タノール等を使用することが出来る。
かくして調製される磁性塗料は、エアーナイフ
コーター等で原紙に塗被され、磁気記録層は設け
られる。
本発明においては、原紙上に設けられた磁気記
録層上に、顔料と接着剤とを主成分とする水性顔
料塗料を塗被し、顔料塗被層を設け、印刷性を付
与することを特徴とするものである。
磁気記録層上に顔料塗被層を設けるにあたり調
製される水性顔料塗料に供される顔料としては、
クレー、炭酸カルシウム、水酸化アルミニウム、
硫酸バリウム、サチンホワイト、亜鉛華、アルミ
ナゼオライト、プラスチツクビグメント等紙のコ
ーテイングに通常使用されているものでよい。一
方、接着剤としては、カゼイン、デンプン、ゼラ
チン、大豆蛋白、ポリビニルアルコール等の水溶
性接着剤やスチレン・プタジエン共重合体、スチ
レン・ブタジエン・メチルメタアクリレート共重
合体、アクリル系樹脂、酢酸ビニル樹脂、ポリエ
ステル樹脂等のラテツクスエマルジヨンあるいは
合成樹脂エマルジヨンを使用することが出来る。
このような顔料および接着剤を用いた水性顔料
塗料は、紙の水性コーテイング法において通常使
用されている各種ミキサーで十分に分散させて調
製される。その際、助剤として、分散剤、滑剤、
着色剤、耐水化剤、消泡剤、塗料粘度調整剤等を
適宜配合することが出来る。
かくして調製された水性顔料塗料は、エアーナ
イフコーター、ブレードコーター、ロールコータ
ー、グラビアコーター等で原紙上に設けられた磁
気記録層上に塗被、乾燥され、顔料塗被層は設け
られる。さらに、顔料塗被層を平滑にするために
グロスカレンダー、スーパーカレンダー処理する
と印刷性をより向上させることが出来、効果的で
ある。そして、顔料塗被層は、磁気記録層の磁気
特性を低下させないことが必要で、水性顔料塗料
の塗被量は、余り多くすることは出来ない。塗被
量は、４〜80ｇ／cm2で、好ましくは８〜60ｇ／m2
で、磁気特性の低下は、全く認められなかつた。
このように磁気記録層および顔料塗被層が設け
られた原紙の他面には、発色性ロイコ染料、該発
色性ロイコ染料を熱時発色させる顕色剤および接
着剤を主成分とする感熱染料を塗料し、感熱記録
層を設けることにより本発明の磁気感熱記録紙は
得られる。
感熱記録層の発色性ロイコ染料、顕色剤および
接着剤は、感熱記録紙の製造において一般的に使
用されているものを適宜選択して適用することが
出来る。また、感熱塗料を調製するにあたり、そ
の他の助剤についても同様である。そして、感熱
記録層上には、耐可塑剤性、耐薬品性等を付与す
るために必要に応じて保護層を設けることにより
それなりの効果を発現させることも出来る。
本発明の磁気感熱記録紙は、磁気記録層上に顔
料塗被層を設けてあるので、従来品の磁気記録層
の着色を隠蔽することが出来、美麗な外観が得ら
れる。そして、磁気記録層上への印刷を可能に
し、記録情報量を多くすることが出来る。しか
も、磁気記録層の磁気特性には、全く影響はな
く、発券適正を有する磁気感熱記録紙を得ること
が出来る。
さらに、実施例によつて本発明を説明する。
実施例 １
磁気塗料配合組成 重量部
γ−酸化鉄 100
ポリビニルアルコール 15
スチレン・ブタジエンラテツクス 20
メラミン・ホルムアルデヒド樹脂 ５
水性顔料塗料配合組成 重量部
カオリン 100
トリボリリン酸ソーダ 0.3
酸化デンプン ５
スチレン・ブタジエンラテツクス 15
ステアリン酸カルシウム ２
上記磁気塗料配合組成で水性磁気塗料を調製
し、坪量157ｇ／m2の加工原紙に塗被し、泳久磁
石で配向後乾燥し、塗被量が40ｇ／m2の磁気記録
層を設けた。次いで、上記水性顔料塗料配合組成
の水性顔料を調製し、磁気記録層上に塗被し、塗
被量が20ｇ／m2の顔料塗被層を設けた。さらに、
下記配合組成で感熱塗料を調製し、原紙の他面に
塗被し、塗被量が８ｇ／m2の感熱記録層を設け、
続いて、該感熱記録層上に塗被層が２ｇ／m2の保
護層を設け、本発明の磁気感熱記録紙を得た。
感熱塗料配合組成
Ａ液（15％） 重量部
発色性ロイコ染料（新日曹社製PSD−150） 30
ポリビニルアルコール（５％水溶液） 400
炭酸カルシウム 20
Ｂ液（10％） 重量部
ビスフエノールＡ 20
ステアリン酸 ５
ポリビニルアルコール（５％水溶液） 400
Ａ液およびＢ液を各々、アトライターで５時間
撹はん分散し、下記割合で混合し感熱塗料を調製
した。
混合割合 重量部
Ａ 液 20
Ｂ 液 100
ポリアクリルアミド樹脂（25％水溶液） 10
メラミン・ホルムアルデヒド樹脂 １
保護層配合組成 重量部
ポリビニルアルコール（５％水溶液） 10
メラミン・ホルムアルデヒド樹脂 １
実施例 ２
実施例１と同様にして２度塗りで、塗被量が40
ｇ／m2の顔料塗被層を設け、本発明の磁気感熱記
録紙を得た。
実施例 ３
実施例１と同様にして２度塗りで、塗被量が60
ｇ／m2の顔料塗被層を設け、以下、実施例１と同
様にして、本発明の磁気感熱記録紙を得た。
比較例
実施例１において、磁気記録層、感熱記録層お
よび保護層を設けただけの磁気感熱記録紙を比較
用とした。
各実施例および比較例で得られた磁気感熱記録
紙について品質試験を行なつた。品質試験の結果
は、次表の通りで、本発明の磁気感熱記録紙は、
磁気記録層上に顔料塗被層を設けても磁気特性を
全く損なうことなく、従来磁気記録層に印刷出来
なかつたものを一般紙用インキを用いて一般紙と
同様に印刷性を付与することが出来た。そして、
発券適性にも何等支障なく、本発明の磁気感熱紙
は、満足の行くものであることが判る。
試験結果
The present invention relates to magnetic thermosensitive recording paper. In particular, it is an object of the present invention to provide a magnetic thermosensitive recording paper whose magnetic recording layer can be printed. Conventionally, magnetic thermosensitive recording paper has a magnetic recording layer on the base paper and a thermosensitive recording layer on the other side.
Widely used for train tickets, commuter passes, magnetic tickets, parking tickets, expressway passes, etc. In recent years, it has also come to be used for various types of cards. This can be processed in vending machines due to the large information storage capacity of the magnetic recording layer, the ease and accuracy of reading written information, etc.
This is probably because it enabled labor savings. Other necessary visible information is printed directly on the opposite side of the magnetic recording layer, or by a carbon thermal transfer method, a chelate printing method, or a thermal recording method. The thermal recording method is widely used because of its simple structure, ease of handling, and maintenance. However, conventionally, the magnetic recording layer has been colored with magnetic powder without any consideration for printing, and has been in a selected state. As a result of studying the possibility of printing on the magnetic recording layer, the present invention discovered that even if a water-based pigment coating layer is provided,
They discovered that it does not impede the magnetic properties in any way, and it also has no problem with ticket issuing tests assuming vending machines. That is, the present invention provides a heat-sensitive recording layer by coating one side of a base paper with a heat-sensitive dye whose main components are a color-forming leuco dye, a color developer that causes the color-forming leuco dye to develop color when heated, and an adhesive. The other side of the base paper is coated with magnetic paint whose main components are magnetic powder and adhesive.
A magnetic thermosensitive recording paper characterized in that a magnetic recording layer is provided, and the magnetic recording layer is further coated with a water-based pigment paint containing pigment and adhesive as main components to provide a pigment coating layer. . Hereinafter, technical matters of the present invention will be explained in detail. First, as the base paper, high-quality paper or processed base paper with a basis weight of 40 to 300 g/m 2 can be used, but there is no particular limitation. The magnetic recording layer provided on the base paper is mainly composed of magnetic powder and adhesive, and the magnetic powder is γ-
Iron oxide, γ-iron oxide modified with cobalt, chromium oxide, barium ferrite, etc. can be used. In addition, adhesives include water-soluble adhesives such as polyvinyl alcohol, styrene/butadiene copolymers, methyl methacrylate/butadiene copolymers, styrene/butadiene/methyl methacrylate copolymers, acrylic resins, and vinyl acetate. Latex emulsion, polyurethane resin, vinyl chloride resin, polyester resin, etc. can be used. Magnetic paints containing magnetic powder and adhesive as main components are prepared and provided in either an aqueous system or an organic solvent system, but an aqueous system is more economical and preferable. As the organic solvent, toluene, xylene, butanol, etc. can be used. The magnetic paint thus prepared is coated on a base paper using an air knife coater or the like to form a magnetic recording layer. The present invention is characterized in that the magnetic recording layer provided on the base paper is coated with a water-based pigment paint mainly composed of pigment and adhesive to provide a pigment coating layer and impart printability. That is. The pigments used in the water-based pigment coating prepared when providing the pigment coating layer on the magnetic recording layer include:
clay, calcium carbonate, aluminum hydroxide,
Those commonly used for coating paper such as barium sulfate, satin white, zinc white, alumina zeolite, and plastic pigments may be used. On the other hand, adhesives include water-soluble adhesives such as casein, starch, gelatin, soybean protein, and polyvinyl alcohol, styrene-butadiene copolymers, styrene-butadiene-methyl methacrylate copolymers, acrylic resins, and vinyl acetate resins. A latex emulsion such as polyester resin or a synthetic resin emulsion can be used. Water-based pigment paints using such pigments and adhesives are prepared by thoroughly dispersing them in various mixers commonly used in water-based paper coating methods. At that time, as auxiliary agents, dispersants, lubricants,
Coloring agents, waterproofing agents, antifoaming agents, paint viscosity modifiers, and the like can be appropriately blended. The aqueous pigment coating thus prepared is coated onto the magnetic recording layer provided on the base paper using an air knife coater, blade coater, roll coater, gravure coater, etc. and dried to form a pigment coating layer. Furthermore, in order to smoothen the pigment coating layer, gloss calendering or super calendering treatment can further improve printability and is effective. The pigment coating layer must not deteriorate the magnetic properties of the magnetic recording layer, and the amount of water-based pigment coating cannot be increased too much. The coating amount is 4 to 80 g/cm 2 , preferably 8 to 60 g/m 2
No deterioration in magnetic properties was observed at all. The other side of the base paper provided with the magnetic recording layer and the pigment coating layer is coated with a heat-sensitive dye whose main components are a color-forming leuco dye, a color developer that causes the color-forming leuco dye to develop color when heated, and an adhesive. The magnetic thermosensitive recording paper of the present invention can be obtained by applying a coating and providing a thermosensitive recording layer. The color-forming leuco dye, color developer, and adhesive of the heat-sensitive recording layer can be appropriately selected from those commonly used in the production of heat-sensitive recording paper. Further, the same applies to other auxiliary agents in preparing the heat-sensitive paint. A protective layer may be provided on the heat-sensitive recording layer as necessary to impart plasticizer resistance, chemical resistance, etc., thereby achieving a certain effect. Since the magnetic thermosensitive recording paper of the present invention has a pigment coating layer on the magnetic recording layer, it is possible to hide the coloration of the magnetic recording layer of conventional products, and a beautiful appearance can be obtained. Then, it is possible to print on the magnetic recording layer, and the amount of recorded information can be increased. Furthermore, the magnetic properties of the magnetic recording layer are not affected at all, and it is possible to obtain a magnetic thermosensitive recording paper that is suitable for issuing tickets. Further, the present invention will be explained by examples. Example 1 Magnetic paint composition Parts by weight γ-iron oxide 100 Polyvinyl alcohol 15 Styrene-butadiene latex 20 Melamine-formaldehyde resin 5 Water-based pigment paint composition Parts by weight Kaolin 100 Sodium tribolyphosphate 0.3 Oxidized starch 5 Styrene-butadiene latex 15 Calcium stearate 2 A water-based magnetic paint was prepared with the above magnetic paint composition, coated on processed base paper with a basis weight of 157 g/m 2 , oriented with a swimming magnet, dried, and magnetically recorded with a coating weight of 40 g/m 2 Layers were set up. Next, a water-based pigment having the above water-based pigment coating composition was prepared and coated on the magnetic recording layer to form a pigment coating layer with a coating weight of 20 g/m 2 . moreover,
A heat-sensitive paint was prepared with the following composition and coated on the other side of the base paper to form a heat-sensitive recording layer with a coating weight of 8 g/ m2 .
Subsequently, a protective layer having a coating layer of 2 g/m 2 was provided on the thermosensitive recording layer to obtain a magnetic thermosensitive recording paper of the present invention. Thermal paint composition Part A (15%) Part by weight Color-forming leuco dye (PSD-150 manufactured by Nisso Co., Ltd.) 30 Polyvinyl alcohol (5% aqueous solution) 400 Calcium carbonate 20 Part B (10%) Part by weight Bisphenol A 20 Stearic acid 5 Polyvinyl alcohol (5% aqueous solution) 400 Solutions A and B were each stirred and dispersed using an attritor for 5 hours, and mixed in the following proportions to prepare a heat-sensitive paint. Mixing ratio Parts by weight Part A 20 Part B 100 Polyacrylamide resin (25% aqueous solution) 10 Melamine/formaldehyde resin 1 Protective layer composition Part by weight Polyvinyl alcohol (5% aqueous solution) 10 Melamine/formaldehyde resin 1 Example 2 Example 1 and Apply 2 coats in the same way, the coating amount is 40
A pigment coating layer of g/m 2 was provided to obtain a magnetic thermosensitive recording paper of the present invention. Example 3 Apply two coats in the same manner as Example 1, and the coating amount is 60.
A pigment coating layer of g/m 2 was provided and the same procedure as in Example 1 was carried out to obtain a magnetic thermosensitive recording paper of the present invention. Comparative Example A magnetic thermosensitive recording paper in which only the magnetic recording layer, thermosensitive recording layer and protective layer were provided in Example 1 was used for comparison. Quality tests were conducted on the magnetic and thermosensitive recording papers obtained in each Example and Comparative Example. The quality test results are as shown in the table below, and the magnetic thermal recording paper of the present invention has the following properties:
To provide a magnetic recording layer with the same printability as ordinary paper using an ink for ordinary paper, without impairing the magnetic properties at all even if a pigment coating layer is provided on the magnetic recording layer. was completed. and,
It can be seen that the magnetic thermal paper of the present invention is satisfactory in terms of suitability for issuing tickets. Test results
【表】
◎：優 ○：良 △：可 ×：不可
[Table] ◎: Excellent ○: Good △: Possible ×: Not possible
Claims (1)
ロイコ染料を熱時発色させる顕色剤および接着剤
を主成分とする感熱染料を塗被し、感熱記録層を
設け、原紙の他面に、磁性粉末と接着剤とを主成
分とする磁性塗料を塗被し、磁気記録層を設け、
さらに該磁気記録層上に、顔料と接着剤とを主成
分とする水性顔料塗料を塗被し、顔料塗被層を設
けたことを特徴とする磁気感熱記録紙。1 One side of the base paper is coated with a heat-sensitive dye whose main components are a color-forming leuco dye, a color developer that develops color when the color-forming leuco dye is heated, and an adhesive, a heat-sensitive recording layer is provided, and a heat-sensitive recording layer is provided on the other side of the base paper. , coated with magnetic paint consisting mainly of magnetic powder and adhesive, and provided with a magnetic recording layer.
A magnetic thermosensitive recording paper further comprising a pigment coating layer formed by coating the magnetic recording layer with an aqueous pigment coating mainly composed of a pigment and an adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61046265A JPS62204991A (en) | 1986-03-05 | 1986-03-05 | Magnetic thermal recording paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61046265A JPS62204991A (en) | 1986-03-05 | 1986-03-05 | Magnetic thermal recording paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62204991A JPS62204991A (en) | 1987-09-09 |
| JPH0470998B2 true JPH0470998B2 (en) | 1992-11-12 |
Family
ID=12742382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61046265A Granted JPS62204991A (en) | 1986-03-05 | 1986-03-05 | Magnetic thermal recording paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62204991A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01176325A (en) * | 1988-01-04 | 1989-07-12 | Mitsubishi Paper Mills Ltd | magnetic recording paper |
| JPH01209138A (en) * | 1988-02-18 | 1989-08-22 | Bita:Kk | Method for printing white card |
| JPH0288779U (en) * | 1988-12-28 | 1990-07-13 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5654634A (en) * | 1979-10-08 | 1981-05-14 | Tokyo Jiki Insatsu Kk | Colored magnetic recording medium |
| JPS56134316A (en) * | 1980-03-19 | 1981-10-21 | Hitachi Maxell Ltd | Colored magnetic sheet |
| JPS58105428A (en) * | 1981-12-17 | 1983-06-23 | Kyodo Printing Co Ltd | Colored magnetic recording medium |
| JPS58180070U (en) * | 1982-05-25 | 1983-12-01 | 共同印刷株式会社 | colored magnetic recording media |
| JPS59199285A (en) * | 1983-04-27 | 1984-11-12 | Dainippon Printing Co Ltd | thermosensitive magnetic recording medium |
| JPS60162896A (en) * | 1984-01-30 | 1985-08-24 | 日本加工製紙株式会社 | Pearl pigment coated paper |
| JPS60162897A (en) * | 1984-01-30 | 1985-08-24 | 日本ゼオン株式会社 | Paper coating composition |
| JPS60141263U (en) * | 1984-02-29 | 1985-09-19 | 株式会社 巴川製紙所 | Heat-sensitive recording magnetic ticket paper |
| JPS6129586A (en) * | 1984-07-20 | 1986-02-10 | Ricoh Co Ltd | Thermal recording-type magnetic coupon paper |
| JPH0673204B2 (en) * | 1984-12-28 | 1994-09-14 | 株式会社リコー | Thermosensitive magnetic recording material |
-
1986
- 1986-03-05 JP JP61046265A patent/JPS62204991A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62204991A (en) | 1987-09-09 |
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