JPH086492A - Braille printed matter and its production - Google Patents
Braille printed matter and its productionInfo
- Publication number
- JPH086492A JPH086492A JP15966394A JP15966394A JPH086492A JP H086492 A JPH086492 A JP H086492A JP 15966394 A JP15966394 A JP 15966394A JP 15966394 A JP15966394 A JP 15966394A JP H086492 A JPH086492 A JP H086492A
- Authority
- JP
- Japan
- Prior art keywords
- printing
- braille
- powders
- foamed resin
- powder
- 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.)
- Pending
Links
Landscapes
- Printing Methods (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、***印刷または肉盛り
印刷などの名称で知られる特殊印刷方法を応用した点字
印刷物とその製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a Braille printed matter to which a special printing method known by a name such as raised printing or overlay printing is applied and a manufacturing method thereof.
【０００２】[0002]
【従来の技術】従来、点字印刷物の製造方法において
は、種々の方法が考えられており、古くは人手によって
点を一つずつ紙の裏面から逆字として押し出して行く方
法、最近では、発泡性インキを用いスクリーン印刷法に
よって点字文字を印刷した後、発泡性インキを加熱発泡
させて点字文字を形成する発泡印刷法、また別名、バー
コ印刷法と呼ばれる方法で、凸版印刷もしくは平版印刷
法により点字文字の印刷を行い、インキの未乾燥粘着状
態で熱可塑性樹脂粉末を散布し、付着しない熱可塑性樹
脂粉末を除去した後、加熱により熱可塑性樹脂粉末を溶
融固化して点字文字を形成する方法など色々な方法が知
られている。2. Description of the Related Art Conventionally, various methods have been considered in the production method of Braille printed matter, and in the past, a method of extruding dots one by one from the back side of the paper by hand as a reciprocal character, recently, foamability After printing Braille characters by screen printing method using ink, foam printing method that heats and foams foamable ink to form Braille characters, also known as Barco printing method, by letterpress printing or lithographic printing method. Characters are printed, thermoplastic resin powder is sprayed in the undried adhesive state of the ink, the thermoplastic resin powder that does not adhere is removed, and then the thermoplastic resin powder is melted and solidified by heating to form Braille characters, etc. Various methods are known.
【０００３】[0003]
【発明が解決しようとする課題】人手による押出し方法
は、大変な労力および時間を要するうえ、長時間作業に
よる疲労で、押し出し位置を間違え易いなどの問題があ
った。また、一旦、間違いが発生した場合には修正がき
かないので、最初からやり直さなければならないという
不便があり、甚だ非能率的な生産方法である。また、こ
の方法により形成された点字印刷物は、単に紙を押出し
成形したものであるから、耐久性は必ずしも良好とは言
えず、長期間にわたる繰り返し使用で、点字文字の***
が徐々に低下して、次第に読みにくくなるという欠点が
あった。また、加熱発泡性インキを用いて、支持体上に
点字文字をスクリーン印刷し、さらに加熱発泡させてな
る点字印刷物の製造方法は、簡便な方法であるので、し
ばしば使われる方法であるが、この方法により形成され
た点字印刷物は支持体から点字文字の印刷層が剥離しや
すく、また、月日の経過とともに、点字文字の発泡層が
少しずつ収縮し、***の高さが徐々に低下するので、次
第に読みにくくなるという問題があった。The manual extrusion method has problems that it requires a great deal of labor and time, and that the extrusion position is apt to be mistaken due to fatigue due to long working hours. Also, once an error occurs, it cannot be corrected, so there is the inconvenience of having to start over from the beginning, which is a very inefficient production method. In addition, since the Braille printed matter formed by this method is simply extruded from paper, it cannot be said that the durability is necessarily good, and the protrusion of the Braille character gradually decreases after repeated use over a long period of time. However, there was a drawback that it became difficult to read. Further, a method of screen-printing braille characters on a support using a heat-foamable ink, and a method for producing a braille printed material obtained by further heat-foaming is a simple method, which is often used. In the braille printed matter formed by the method, the printed layer of braille characters is easily separated from the support, and the foamed layer of braille characters gradually shrinks with the passage of time, and the height of the ridge gradually decreases. , There was a problem that it became difficult to read.
【０００４】さらに、その他の方法として、凸版または
平版などの印刷法により、支持体上に点字文字を印刷
し、印刷層の未乾燥の粘着状態のときに熱可塑性樹脂粉
末を均一に散布して、付着しない熱可塑性樹脂粉末を除
去した後、付着した熱可塑性樹脂粉末を加熱溶融させて
点字印刷物を製造する方法は、比較的に簡便な方法であ
るので、上記同様にしばしば使用される。しかしなが
ら、この方法で従来製造された点字印刷物は、比較的融
点の低い熱可塑性樹脂粉末を使用していたため、加熱処
理によって、樹脂は容易に溶融・流動し平坦化して、充
分なる***高さの点字文字が得られなかったので、触読
しにくいという問題があった。本発明は、上記の欠点、
および問題点に着目し、これを解消すべく鋭意努力して
なされたもので、高度の精神集中力を要することなく、
また、長時間の触読でも疲労を伴うことなく、触読でき
る充分なる***高さを有する点字印刷物とその製造方法
を提供することを目的とする。Further, as another method, Braille characters are printed on the support by a printing method such as letterpress or planographic printing, and the thermoplastic resin powder is evenly dispersed when the printing layer is in an undried adhesive state. The method for producing a braille printed material by removing the non-adhering thermoplastic resin powder and then heating and melting the adhered thermoplastic resin powder is a relatively simple method, and is often used in the same manner as described above. However, since the Braille printed matter conventionally produced by this method uses the thermoplastic resin powder having a relatively low melting point, the resin is easily melted and flown by the heat treatment to be flattened, so that the resin having a sufficient height of protrusion is obtained. There was a problem that it was hard to read because Braille characters were not obtained. The present invention has the above-mentioned drawbacks,
It was made by paying attention to the problems and problems, and making an earnest effort to eliminate them, without requiring a high degree of mental concentration,
It is another object of the present invention to provide a braille printed material having a raised height sufficient to be touched without causing fatigue even when touched for a long time, and a method for producing the same.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明の点字印刷物は、図１のように、基材１の上
に、印刷層２、および発泡樹脂層３と非発泡樹脂層４と
からなる***層５を順次設けてなるものである。基材１
としては、紙の他に、ポリエチレンのようなポリオレフ
ィンや塩化ビニルなどのプラスチックシートもしくはフ
ィルム、またはそれらの積層体が使用できる。In order to achieve the above object, the braille printed material of the present invention has a printed layer 2, a foamed resin layer 3 and a non-foamed resin on a substrate 1 as shown in FIG. A raised layer 5 including a layer 4 is sequentially provided. Substrate 1
In addition to paper, a plastic sheet or film of polyolefin such as polyethylene or vinyl chloride, or a laminate thereof can be used.
【０００６】基材１の上に設ける点字文字や絵柄の印刷
層２は、平版印刷、凸版印刷、および凹版印刷、或いは
スクリーン印刷方法などのいずれかの印刷方法で形成さ
れる。使用する印刷インキは、適度の乾燥性を有し、未
乾燥のときに粘着性を有するものであれば、いずれのも
のでも良く、また透明メジウム、ＯＰニスなどを使用し
て無色透明な印刷層２を形成しても良い。使用する印刷
インキに関しては、印刷後に直ちに乾燥し、粘着性を消
失するような速乾性のインキは、使用できない。また、
印刷後にいつまでも経っても粘着性を帯びているような
インキも、生産効率の点で、好ましくない。The printing layer 2 of Braille characters or a pattern provided on the substrate 1 is formed by any printing method such as lithographic printing, letterpress printing, intaglio printing, or screen printing. The printing ink to be used may be any one as long as it has an appropriate drying property and has an adhesive property when undried, and a colorless and transparent printing layer using a transparent medium, OP varnish or the like. 2 may be formed. As for the printing ink used, a quick-drying ink that dries immediately after printing and loses its tackiness cannot be used. Also,
Inks that are sticky even after printing forever are not preferable in terms of production efficiency.
【０００７】発泡樹脂層３は、アゾ系やスルホニルヒド
ラジド系などの加熱によりガス状に分解する組成物を、
ゼラチンなどの被膜形成材で内包したマイクロカプセル
粒子粉末３３を使用し、加熱発泡して形成されたもので
ある。また非発泡樹脂層４は、従来からバーコ印刷法で
使用されている熱可塑性樹脂粉末、例えば、塩化ビニル
ー酢酸ビニル共重合体樹脂、ポリアミド樹脂などの樹脂
粉末を加熱溶融して形成される。The foamed resin layer 3 contains a composition such as an azo type or sulfonyl hydrazide type which decomposes into a gas by heating.
The microcapsule particle powder 33 encapsulated with a film-forming material such as gelatin is used and foamed by heating. The non-foamed resin layer 4 is formed by heating and melting a thermoplastic resin powder conventionally used in the Barco printing method, for example, a resin powder such as a vinyl chloride-vinyl acetate copolymer resin or a polyamide resin.
【０００８】マイクロカプセル粒子粉末や熱可塑性樹脂
粉末の粒径は、最終的に得られる点字印刷物の品質に少
なからず影響を与えるので、特に留意する必要がある
が、本発明においては、マイクロカプセル粒子粉末の粒
径は、５〜２０μｍ、また熱可塑性樹脂粉末の粒径は、
５０〜２００μｍである。さらに、使用する熱可塑性樹
脂の融点に関しては、高過ぎる樹脂を使用すると加熱温
度も高くしなければならず、基材の波うち現象など熱変
形が生じのるで、好ましくない。一方、融点の低過ぎる
樹脂を使用すると、加熱処理で溶融流動化しやすいため
平坦化し、所望の高さの点字文字が得られないという問
題が生じるので、使用できない。したがって、本願発明
の好ましい樹脂の融点は、９０〜１５０℃である。ま
た、熱可塑性樹脂粉末とカプセル粒子粉末との配合比
は、熱可塑性樹脂粉末１００重量部に対して、マイクロ
カプセル粒子粉末１０〜５０重量部である。マイクロカ
プセル粒子粉末の添加量を１０重量部以下にすると、発
泡量が不十分となり、また５０重量部を超えると、発泡
粉末が脱落しやすくなるので、好ましくない。[0008] The particle size of the microcapsule particle powder or the thermoplastic resin powder has a considerable influence on the quality of the Braille printed matter finally obtained. The particle size of the powder is 5 to 20 μm, and the particle size of the thermoplastic resin powder is
It is 50 to 200 μm. Further, regarding the melting point of the thermoplastic resin to be used, if a resin that is too high is used, the heating temperature must be raised, and thermal deformation such as waviness of the substrate may occur, which is not preferable. On the other hand, if a resin having a melting point that is too low is used, it tends to be melted and fluidized by heat treatment, so that the resin is flattened and Braille characters having a desired height cannot be obtained. Therefore, the preferable melting point of the resin of the present invention is 90 to 150 ° C. The mixing ratio of the thermoplastic resin powder to the capsule particle powder is 10 to 50 parts by weight of the microcapsule particle powder with respect to 100 parts by weight of the thermoplastic resin powder. If the addition amount of the microcapsule particle powder is 10 parts by weight or less, the foaming amount will be insufficient, and if it exceeds 50 parts by weight, the foamed powder will easily fall off, which is not preferable.
【０００９】次に、本願発明における点字印刷物の製造
方法を、図１ないし図３に従って説明する。本発明の点
字印刷物の製造方法は、図２のように、紙やプラスチッ
クフィルムなどの基材１の上に、それぞれの版式に適し
た印刷インキを用いて、印刷して印刷層２を形成する。
印刷方法は平版、凹版、凸版またはスクリーン印刷など
のいずれかの印刷方法による。印刷層２が、まだ乾燥し
ないで粘着性を帯びているときに、発泡剤を内包したマ
イクロカプセル粒子粉末３３と熱可塑性樹脂粉末４４と
からなる混合粉末５５を均一に散布する。散布する方法
としては、均一に散布できる方法であれば、いかなる方
法でもよいが、例えばパウダースプレイー法、撒き散ら
した粉末を左右前後に揺する揺動法、または傾斜法など
の粉体塗布方法がある。このようにして印刷層２の面に
混合粉末５５を付着させてから、印刷の施されていない
部位上の混合粉末５５および印刷層２上にあっても印刷
層２に付着していないところの混合粉末５５を除去す
る。除去する方法としては、いかなる方法でもよいが、
一般的には、真空吸引法などの除去方法が効率の点で好
ましく使われる。図３は、このようにして不要の混合粉
末５５を除去した後の状態を示した図である。Next, a method for manufacturing a Braille printed material according to the present invention will be described with reference to FIGS. According to the method for producing a braille printed matter of the present invention, as shown in FIG. 2, a printing layer 2 is formed on a substrate 1 such as paper or a plastic film by printing with a printing ink suitable for each plate type. .
The printing method is any printing method such as planographic printing, intaglio printing, letterpress printing or screen printing. When the printing layer 2 is not dried yet and is sticky, the mixed powder 55 including the microcapsule particle powder 33 containing the foaming agent and the thermoplastic resin powder 44 is evenly dispersed. As a method for spraying, any method may be used as long as it can be uniformly sprayed, for example, a powder spray method, a rocking method of rocking the scattered powder back and forth, or a powder coating method such as a tilting method. is there. After the mixed powder 55 is attached to the surface of the printed layer 2 in this manner, the mixed powder 55 on the non-printed portion and the printed layer 2 are not attached to the printed layer 2. The mixed powder 55 is removed. Any method can be used to remove it,
Generally, a removal method such as a vacuum suction method is preferably used in terms of efficiency. FIG. 3 is a diagram showing a state after the unnecessary mixed powder 55 is removed in this way.
【００１０】次に、この混合粉末５５が付着した基材１
を、赤外線ランプや加熱炉などの一般的な加熱装置（図
示せず）に移して加熱し、熱可塑性樹脂粉末４４を溶融
させるとともに、マイクロカプセル粒子粉末３３を発泡
させる。加熱時間、および加熱温度は、使用する素材の
種類に異なるが、おおよそ数秒から１分、および１００
〜２００℃である。最後に、この基材１を加熱装置から
取り出して空冷、もしくは強制冷却して、図１に示めす
ような点字印刷物が得られる。Next, the base material 1 to which the mixed powder 55 is attached
Is transferred to and heated by a general heating device (not shown) such as an infrared lamp or a heating furnace to melt the thermoplastic resin powder 44 and foam the microcapsule particle powder 33. The heating time and heating temperature will differ depending on the type of material used, but it will range from a few seconds to 1 minute, and 100
~ 200 ° C. Finally, the substrate 1 is taken out of the heating device and air-cooled or forcedly cooled to obtain a braille printed matter as shown in FIG.
【００１１】以上述べた製造方法は、プロセスカラーの
印刷インキに、合成樹脂粉末が付着した例を示したが、
次に述べるような方法で点字印刷物を製造しても良い。
すなわち、基材１にオフセット印刷方式などにより、プ
ロセスカラーで多色印刷し、多色印刷層を形成する。次
に、この印刷インキを乾燥させた後、透明メジュウムを
所定のパターン状に塗布して印刷層２を形成する。この
後に上述した製造方法と同様に、発泡剤を内包したマイ
クロカプセル粒子粉末３３と熱可塑性樹脂粉末４４とか
らなる混合粉末５５を均一に散布し、印刷層２以外の部
分の混合粉末５５を除去し、さらに加熱して点字印刷物
を得ることもできる。The manufacturing method described above shows an example in which the synthetic resin powder adheres to the process color printing ink.
Braille printed matter may be manufactured by the following method.
That is, multicolor printing with process colors is performed on the base material 1 by an offset printing method or the like to form a multicolor printing layer. Next, after drying this printing ink, a transparent medium is applied in a predetermined pattern to form a printing layer 2. Thereafter, similarly to the manufacturing method described above, the mixed powder 55 including the microcapsule particle powder 33 containing the foaming agent and the thermoplastic resin powder 44 is evenly dispersed, and the mixed powder 55 other than the printing layer 2 is removed. Alternatively, the braille printed matter can be obtained by further heating.
【００１２】[0012]
（実施例１）坪量２０９ｇ／ｍ2 の紙の上に、平版印刷
用インキでオフセット印刷して、点字文字の印刷層を形
成した。インキが乾燥する前の粘着性のあるときに、融
点１０５℃で粒径２００μｍのポリアミド樹脂粉末８０
重量部と、液体ガス（イソプタンガス）をエマルジョン
樹脂（塩化ビニリデン樹脂）に封入した粒径１３μｍの
マイクロカプセル粉末２０重量部とからなる混合粉末３
００ｇを前記印刷層面にパウダースプレイ法で均一に散
布した。次いで、前記印刷層面に付着していない混合粉
末を真空吸引法により除去し、１５０℃に保持された加
熱装置に装入して、加熱した。この加熱処理で熱可塑性
樹脂粉末を溶融溶着させるとともに、マイクロカプセル
を発泡させて、発泡樹脂層と非発泡樹脂層とからなる点
字文字の***層を形成した。しかるのちに、空冷して、
本発明の点字印刷物を製造した。(Example 1) On a paper having a basis weight of 209 g / m 2 , offset printing was performed with a lithographic printing ink to form a print layer of Braille characters. Polyamide resin powder 80 having a melting point of 105 ° C. and a particle size of 200 μm when the ink is tacky before drying
3 parts by weight and a mixed powder 3 consisting of 20 parts by weight of microcapsule powder having a particle diameter of 13 μm in which an emulsion resin (vinylidene chloride resin) is filled with a liquid gas (isoptane gas)
00 g was evenly dispersed on the surface of the printing layer by the powder spray method. Next, the mixed powder not adhering to the surface of the printing layer was removed by a vacuum suction method, charged into a heating device kept at 150 ° C., and heated. By this heat treatment, the thermoplastic resin powder was melted and welded, and the microcapsules were foamed to form a raised layer of Braille characters consisting of a foamed resin layer and a non-foamed resin layer. After that, air cool,
Braille prints of the invention were produced.
【００１３】[0013]
【発明の効果】本願発明による点字印刷物は、加熱処理
で熱可塑性樹脂粉末は溶融して、基材表面に強固に固着
するとともに、発泡したマイクロカプセルをも強固に固
着するので、従来に見られるように、点字文字が基材表
面から剥離するようなこともない。また得られた***層
の高さも、従来のバーコ印刷法または加熱発泡法の単独
法によって作られた点字印刷物に比較して大であり、そ
の表面も平滑でないから、非常に触読しやすい点字印刷
物である。また、本願発明による点字印刷物の製造方法
は、押出しエンボス法による製造方法に較べて、比較に
ならないほどの多量の点字印刷物を、高度の品質を維持
しながら、短時間でしかも安価に製造できるので、極め
て優れた製造方法である。EFFECTS OF THE INVENTION The braille printed matter according to the present invention can be seen in the past because the thermoplastic resin powder is melted by the heat treatment and firmly adheres to the surface of the base material, and also firmly adheres the foamed microcapsules. Thus, the Braille characters do not peel off from the surface of the base material. In addition, the height of the raised layer obtained is larger than that of a Braille printed material produced by a conventional barco printing method or a single method of heat foaming, and the surface is not smooth, so it is very easy to read in Braille. It is a printed matter. In addition, the method for producing a braille printed material according to the present invention is capable of producing an incomparably large amount of braille printed material in a short time and at low cost as compared with the production method by the extrusion embossing method. It is an extremely excellent manufacturing method.
【図１】本発明の点字印刷物の断面図である。FIG. 1 is a cross-sectional view of a braille printed material of the present invention.
【図２】本発明の製造方法による工程図で、基体上に印
刷層を設けた状態を示す。FIG. 2 is a process diagram according to the manufacturing method of the present invention, showing a state in which a printing layer is provided on a substrate.
【図３】本発明の製造方法による工程図で、印刷層を設
けた基体全面に混合粉末を散布し、さらに不要の粉末を
除去した状態を示す。FIG. 3 is a process diagram according to the manufacturing method of the present invention, showing a state in which the mixed powder is dispersed over the entire surface of the substrate provided with the printing layer, and unnecessary powder is removed.
１ 基体 ２ 印刷層 ３ 発泡樹脂層 ４ 非発泡樹脂層 ５ ***層 ３３ マイクロカプセル粒子粉末 ４４ 熱可塑性樹脂粉末 ５５ 混合粉末 1 Base 2 Printed layer 3 Foamed resin layer 4 Non-foamed resin layer 5 Raised layer 33 Microcapsule particle powder 44 Thermoplastic resin powder 55 Mixed powder
Claims (2)
脂層３と非発泡樹脂層４とからなる***層５を順次設け
た点字印刷物。1. A Braille printed matter in which a printed layer 2 and a raised layer 5 composed of a foamed resin layer 3 and a non-foamed resin layer 4 are sequentially provided on a substrate 1.
態の印刷層２を形成し、次いで、発泡剤を内包したマイ
クロカプセル粒子粉末３３と熱可塑性樹脂粉末４４とか
らなる混合粉末５５を散布し、付着しない混合粉末５５
を除去した後に、加熱することを特徴とする点字印刷物
の製造方法。2. A mixed powder 55 composed of a microcapsule particle powder 33 containing a foaming agent and a thermoplastic resin powder 44, which is formed by printing a printing layer 2 in an undried adhesive state on a substrate 1. 55 mixed powder that does not adhere
A method for producing a braille printed material, which comprises heating after removing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15966394A JPH086492A (en) | 1994-06-20 | 1994-06-20 | Braille printed matter and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15966394A JPH086492A (en) | 1994-06-20 | 1994-06-20 | Braille printed matter and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH086492A true JPH086492A (en) | 1996-01-12 |
Family
ID=15698628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15966394A Pending JPH086492A (en) | 1994-06-20 | 1994-06-20 | Braille printed matter and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH086492A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004106311A (en) * | 2002-09-18 | 2004-04-08 | Dainippon Printing Co Ltd | Print having latent image pattern and its manufacturing method |
| DE102005003413A1 (en) * | 2005-01-25 | 2006-07-27 | Hansgeorg Neubig | Production of fonts and drawings by means of micro-encapsulated 2-component plastic foam, e.g. PU (Polyurethane) PS (Polystyrene) |
| GB2457949B (en) * | 2008-02-29 | 2010-05-12 | Rue De Int Ltd | Security documents |
| CN115551710A (en) * | 2020-05-22 | 2022-12-30 | 凸版印刷株式会社 | Resin-impregnated decorative paper and resin-impregnated decorative board |
-
1994
- 1994-06-20 JP JP15966394A patent/JPH086492A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004106311A (en) * | 2002-09-18 | 2004-04-08 | Dainippon Printing Co Ltd | Print having latent image pattern and its manufacturing method |
| DE102005003413A1 (en) * | 2005-01-25 | 2006-07-27 | Hansgeorg Neubig | Production of fonts and drawings by means of micro-encapsulated 2-component plastic foam, e.g. PU (Polyurethane) PS (Polystyrene) |
| GB2457949B (en) * | 2008-02-29 | 2010-05-12 | Rue De Int Ltd | Security documents |
| CN115551710A (en) * | 2020-05-22 | 2022-12-30 | 凸版印刷株式会社 | Resin-impregnated decorative paper and resin-impregnated decorative board |
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