JPH08238837A - Braille print and printing ink for the same - Google Patents
Braille print and printing ink for the sameInfo
- Publication number
- JPH08238837A JPH08238837A JP7044595A JP7044595A JPH08238837A JP H08238837 A JPH08238837 A JP H08238837A JP 7044595 A JP7044595 A JP 7044595A JP 7044595 A JP7044595 A JP 7044595A JP H08238837 A JPH08238837 A JP H08238837A
- Authority
- JP
- Japan
- Prior art keywords
- styrene
- braille
- acrylic resin
- printing
- ink
- 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.)
- Withdrawn
Links
Landscapes
- Printing Methods (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、隆起印刷または肉盛り
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
印刷物とその印刷インキに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a Braille printed matter and a printing ink for the Braille printed matter to which a special printing method known by a name such as raised printing or overlay printing is applied.
【０００２】[0002]
【従来の技術】従来、点字印刷物の製造方法において
は、種々の方法が知られており、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、また一般にバーコ印刷法という名称で知られる方法
は、凸版印刷もしくは平版印刷法により用紙に点字文字
の印刷を行い、インキが未だ乾かないで粘着状態のとき
に熱可塑性樹脂粉末を散布して、樹脂粉末をインキに付
着させる。付着しない余分の熱可塑性樹脂粉末は真空吸
引法など適宜な方法で除去し、しかる後に、この印刷物
を加熱して、インキに付着している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である。また、発
泡性インキを用い、スクリーン印刷法により文字を印刷
して、しかる後に加熱発泡させて点字文字を形成する発
泡スクリーン印刷方法などの色々な方法が知られてい
る。2. Description of the Related Art Conventionally, various methods have been known for producing Braille printed matter, and in the past, a method of manually extruding dots one by one from the back side of paper as a reverse letter, and generally a barco printing method. The method known by the name is printing Braille characters on the paper by letterpress printing or lithographic printing method, spraying thermoplastic resin powder when the ink is still dry and sticking, and sticking the resin powder to the ink. Let Excessive thermoplastic resin powder that does not adhere is removed by an appropriate method such as a vacuum suction method, and then this printed matter is heated to melt and solidify the thermoplastic resin powder adhered to the ink to form Braille characters. Is the way. Further, various methods such as a foamed screen printing method in which a character is printed by a screen printing method using a foamable ink and then heat-foamed to form a Braille character 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った。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の使用で、点字文字の
隆起が徐々に低下し、隆起不足のため、次第に読みにく
くなるという欠点があった。また、バーコ印刷法は、比
較的に簡便な方法であるので、多用されているが、この
方法で製造された点字印刷物は、樹脂融着化するための
加熱処理で、樹脂が溶融流出し平坦化するので、触読に
適した高さの点字文字が得られにくいという問題があっ
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, and it was a very inefficient production method. Also,
The braille printed matter formed by this method is not necessarily good in durability because it is simply an extruded piece of paper. There was a shortcoming that it became difficult to read because of the lack. Further, the barco printing method is widely used because it is a relatively simple method, but the braille printed matter produced by this method is a heat treatment for fusion-bonding the resin, so that the resin melts and flows out and becomes flat. However, there is a problem that it is difficult to obtain Braille characters having a height suitable for tactile reading.
【０００４】さらに、発泡インキを用いるスクリーン印
刷法は、印刷初期の段階では、インキは版の画像のとお
り忠実にスクリーンの目を通り抜けて美麗な印刷物を得
ることはできるが、印刷時間の経過とともに、次第にス
クリーンの目詰まりが発生して、一部にインキ層の欠落
した不良印刷物ができた。また、この方法で作られた点
字印刷物は、文字表面の硬度が不足し、柔らか過ぎるた
めに、触読しにくく、かつ、点字文字が用紙表面から脱
落する、という問題があった。本発明は、上記の欠点な
いし問題点に着目し、これを解消すべく鋭意努力してな
されたもので、触読の際に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、充分なる高さと適度の硬度を有する点字印
刷物を提供し、さらに長時間に亘る印刷でもスクリーン
目詰まりを起こすことのない発泡印刷インキを提供する
ことを目的とする。Further, in the screen printing method using the foamed ink, in the early stage of printing, the ink can pass through the eyes of the screen faithfully like the image on the plate to obtain a beautiful printed matter, but with the passage of printing time. Then, the screen was gradually clogged and a defective printed material with a missing ink layer was formed. In addition, the braille printed matter produced by this method has a problem that the hardness of the character surface is insufficient and it is too soft, so that it is hard to read and the braille character falls off from the paper surface. The present invention has been made by paying attention to the above-mentioned drawbacks and problems and making an earnest effort to solve them, and it does not require a high degree of mental concentration at the time of tactile reading, and it can be read for a long time. But without fatigue
An object of the present invention is to provide a braille printed material that has a sufficient height and an appropriate hardness that can be touched, and further to provide a foamed printing ink that does not cause screen clogging even when printing for a long time.
【０００５】[0005]
【発明が解決するための手段】本発明の上記目的を達成
するために、図２に示すように、基材２の上に発泡樹脂
層４を形成した点字印刷物１において、発泡樹脂層４
は、スチレン・アクリル系樹脂および表面改質剤からな
る組成物で形成するが、スチレン・アクリル系樹脂は、
最低造膜温度の異なる少なくとも２種類のスチレン・ア
クリル系樹脂エマルジョンからなる。最低造膜温度の異
なる少なくとも２種類のスチレン・アクリル系樹脂エマ
ルジョンは、最低造膜温度が４０℃〜６０℃のスチレン
・アクリル系樹脂および最低造膜温度０℃〜１０℃のス
チレン・アクリル系樹脂から適宜に組み合わせて使用す
る。また表面改質剤は、粒径１〜３μｍのタルクからな
る。さらに、本発明に係わる点字印刷物１は、無色また
は着色の発泡性印刷インキ７を用いスクリーン印刷法に
よって製造するが、発泡性印刷インキ７は、最低造膜温
度の異なる少なくとも２種類のスチレン・アクリル系樹
脂エマルジョン、タルク、発泡剤、およびグリコール系
溶剤からなる。なお、このインキには、着色剤を添加し
ても良い。In order to achieve the above object of the present invention, as shown in FIG. 2, in a Braille printed material 1 in which a foamed resin layer 4 is formed on a substrate 2, a foamed resin layer 4 is formed.
Is formed of a composition consisting of styrene / acrylic resin and a surface modifier, and styrene / acrylic resin is
It is composed of at least two kinds of styrene-acrylic resin emulsions having different minimum film forming temperatures. At least two kinds of styrene / acrylic resin emulsions having different minimum film forming temperatures are styrene / acrylic resin having a minimum film forming temperature of 40 ° C to 60 ° C and styrene / acrylic resin having a minimum film forming temperature of 0 ° C to 10 ° C. To be used in appropriate combination. The surface modifier is made of talc having a particle size of 1 to 3 μm. Further, the Braille printed matter 1 according to the present invention is produced by a screen printing method using a colorless or colored expandable printing ink 7. The expandable printing ink 7 is at least two kinds of styrene-acryl having different minimum film forming temperatures. It consists of a resin emulsion, talc, a foaming agent, and a glycol solvent. A colorant may be added to this ink.
【０００６】本発明に係わる点字印刷物１は、次の方法
によって製造する。図１に示すとおり、予め製版された
スクリーン５の下に基材２を置き、スクリーン５の上に
は発泡性印刷インキ７を注ぐ。次に、発泡性印刷インキ
７をへら６でスクイズし、スクリーン５の目を通過させ
ることによって、基材２上に発泡性印刷インキ層３を設
ける。しかる後に、基材２を加熱し、発泡性印刷インキ
層３を発泡させて発泡樹脂層４を形成する。そして、こ
の基材２を空冷又は強制冷却して、図２に示すとおり、
本発明の点字印刷物１を得る。The Braille printed material 1 according to the present invention is manufactured by the following method. As shown in FIG. 1, the base material 2 is placed under the screen 5 which is preliminarily prepared, and the foamable printing ink 7 is poured on the screen 5. Next, the foamable printing ink 7 is squeezed with a spatula 6 and passed through the eyes of the screen 5 to provide the foamable printing ink layer 3 on the substrate 2. Then, the base material 2 is heated to foam the foamable printing ink layer 3 to form the foamed resin layer 4. Then, the base material 2 is air-cooled or forcedly cooled, and as shown in FIG.
The braille printed material 1 of the present invention is obtained.
【０００７】基材２の素材としては、普通の紙やコート
紙などの印刷用紙、又はポリ塩化ビニルシート、ポリス
チレンシート、ポリエチレンシートなどのプラスチック
シートもしくはそれらの積層体が使用される。発泡樹脂
層４を形成する組成物は、スチレン・アクリル系樹脂お
よび表面改質剤からなるが、スチレン・アクリル系樹脂
は、最低造膜温度の異なる少なくとも２種類のスチレン
・アクリル系樹脂エマルジョン、すなわち、最低造膜温
度が４０℃〜６０℃のスチレン・アクリル系樹脂エマル
ジョン、および最低造膜温度０℃〜１０℃のスチレン・
アクリル系樹脂エマルジョンの中から適宜に組み合わせ
て形成する。最低造膜温度の異なる２種類の樹脂エマル
ジョンの配合割合は、最低造膜温度が４０℃〜６０℃の
スチレン・アクリル系樹脂分１００重量部に対して、最
低造膜温度が０℃〜１０℃のスチレン・アクリル系樹脂
を６０〜８０重量部添加する。またスチレン・アクリル
系樹脂を発泡させるには、樹脂組成物に発泡剤を添加し
なければならないが、汎用されている発泡剤、たとえば
アゾジカルボンアミド、Ｐートルエンスルホニルヒドラ
ジンおよび低沸点炭化水素などの一般的な発泡剤で使用
でき、その添加量も総スチレン・アクリル系樹脂量１０
０重量部に対して５〜１０重量部の範囲である。しかし
発泡剤の添加量が上記特定の添加量より少な過ぎる場合
は、発泡の度合いが低く、牽いては点字文字の隆起が不
充分となり、触読のしやすさの点で好ましくない。一
方、上記特定の添加量よりも添加量が多過ぎる場合は、
形成された点字文字が柔らか過ぎて触読しにくいうえ
に、耐久性をも欠くので、同様に好ましくない。樹脂組
成物に添加する表面改質剤は、無機および有機のいろい
ろな素材の粉末が知られるが、本発明では粒径１〜３μ
ｍのタルクを使用する。タルク以外のものを使用する
と、インキ製造の際にインキ組成物の分散が充分に行わ
れず、均質なインキが得られないので、きれいな印刷物
はできない。このため、タルク以外の粉末は、本発明で
は好ましくないので使用しない。As the material of the substrate 2, printing paper such as ordinary paper or coated paper, plastic sheet such as polyvinyl chloride sheet, polystyrene sheet, polyethylene sheet, or a laminated body thereof is used. The composition forming the foamed resin layer 4 comprises a styrene / acrylic resin and a surface modifier, and the styrene / acrylic resin is at least two types of styrene / acrylic resin emulsions having different minimum film forming temperatures, that is, , Styrene-acrylic resin emulsion with a minimum film formation temperature of 40 ° C to 60 ° C, and styrene with a minimum film formation temperature of 0 ° C to 10 ° C.
It is formed by appropriately combining acrylic resin emulsions. The mixing ratio of the two types of resin emulsions having different minimum film forming temperatures is such that the minimum film forming temperature is 0 ° C to 10 ° C with respect to 100 parts by weight of the styrene-acrylic resin component having the minimum film forming temperature of 40 ° C to 60 ° C. 60 to 80 parts by weight of the styrene-acrylic resin are added. Further, in order to foam the styrene-acrylic resin, a foaming agent must be added to the resin composition, but widely used foaming agents such as azodicarbonamide, P-toluenesulfonylhydrazine and low boiling point hydrocarbons. It can be used as a general foaming agent, and its addition amount is 10% of total styrene / acrylic resin.
It is in the range of 5 to 10 parts by weight with respect to 0 parts by weight. However, if the amount of the foaming agent added is less than the above-mentioned specific amount, the degree of foaming is low, and the raised Braille characters are insufficient when checked, which is not preferable in terms of readability. On the other hand, if the addition amount is more than the specific addition amount,
Similarly, the formed braille characters are too soft to be touched and lack durability, which is also not preferable. As the surface modifier added to the resin composition, powders of various inorganic and organic materials are known, but in the present invention, the particle size is 1 to 3 μm.
Use m talc. If a material other than talc is used, the ink composition is not sufficiently dispersed during ink production, and a uniform ink cannot be obtained, so that a clean printed matter cannot be obtained. Therefore, powders other than talc are not used in the present invention and are not used.
【０００８】本発明の発泡性印刷インキは、スチレン・
アクリル系樹脂エマルジョン、タルク、発泡剤、および
乾燥性・粘性調整剤としての有機溶剤からなるが、有機
溶剤は、沸点１８０〜３００℃の適度な蒸発速度を有す
るグリコール系溶剤を使用する。本発明のインキは、イ
ンキの乾燥性・粘性調整剤として、このような沸点を有
するグリコール系の溶剤を使用するので、長時間に亘る
連続印刷でも有機溶剤の過度な蒸発に基づくスクリーン
の目詰まりは発生しない。グリコール系溶剤は、沸点の
異なる種々のものが知られているが、本発明では沸点が
１９７℃〜２５０℃のグリコール、例えばエチレングリ
コールやジエチレングリコールなどのグリコールを使用
する。グリコール系溶剤の添加量は、発泡性印刷インキ
の総樹脂量に対して、５〜１０部である。スクリーン
は、ポリアミドやポリエステルなどの合成樹脂製、およ
びステンレス製で、４０〜１５０メッシュ／インチの目
の粗さのものを使用する。発泡性印刷インキを、このス
クリーンの上に注ぎ、へらでスクイズして基材上に点字
文字を印刷する。このようにスクリーン印刷法により発
泡性印刷インキ層を設けた基材は、インキ層を加熱発泡
させるために、加熱炉、赤外線ランプなどの適宜な加熱
手段で加熱し、発泡処理を行う。そして次に、空冷又は
強制的に冷却して、本発明の点字印刷物を得る。The foamable printing ink of the present invention comprises styrene
It consists of an acrylic resin emulsion, talc, a foaming agent, and an organic solvent as a drying / viscosity adjusting agent. As the organic solvent, a glycol solvent having a proper evaporation rate with a boiling point of 180 to 300 ° C. is used. Since the ink of the present invention uses a glycol solvent having such a boiling point as an ink drying / viscosity adjusting agent, screen clogging caused by excessive evaporation of an organic solvent even in continuous printing for a long time. Does not occur. Although various glycol solvents having different boiling points are known, glycols having a boiling point of 197 ° C. to 250 ° C., for example, glycols such as ethylene glycol and diethylene glycol are used in the present invention. The addition amount of the glycol-based solvent is 5 to 10 parts with respect to the total resin amount of the expandable printing ink. The screen is made of synthetic resin such as polyamide or polyester, and is made of stainless steel, and has a mesh of 40 to 150 mesh / inch. Foaming printing ink is poured onto this screen and squeezed with a spatula to print Braille characters on the substrate. The base material provided with the expandable printing ink layer by the screen printing method is heated by an appropriate heating means such as a heating furnace or an infrared lamp in order to heat and foam the ink layer to perform the foaming treatment. Then, it is air-cooled or forcedly cooled to obtain the braille printed material of the present invention.
【０００９】[0009]
（実施例１）下記の組成からなる加熱発泡性の印刷イン
キを、予め製版されたスクリーン上にのせ、スクイズし
てスクリーン印刷を行った。スクリーンは、ポリアミド
製のスクリーンで、その線数は、１００メッシュ／イン
チである。基材は、坪量２０９ｇ／ｍ2 の用紙ＯＫマッ
トポスト（新王子製紙（株）製）を使用した。 インキ組成 スチレン・アクリル系エマルジョン ５０重量部 （最低造膜温度 ６０℃） スチレン・アクリル系エマルジョン ４０重量部 （最低造膜温度 １０℃） タルク（微粒子型タイプ） ２０重量部 発泡剤（低沸点炭化水素） １０重量部 ジエチレン・グリコール １０重量部 消泡剤（鉱物油系） ２重量部 分散剤（ノニオン系界面活性剤） ２重量部 増粘剤（高分子アクリル系） ２重量部 着色剤（水性分散顔料） ２重量部 次に、上記の方法で印刷した基材を、赤外線ランプで均
一に加熱し、印刷インキを発泡させた後に、空冷して、
点字印刷物を得た。得られた点字印刷物は、点字文字の
隆起も充分で、且つその表面も硬いうえ、刺状のものも
なかったので、指先を傷めることなく、容易に点字文字
の触読できた。また、上記組成からなる加熱発泡性イン
キを使用して、連続的に５００枚印刷しても、スクリー
ンの目詰まりの発生もないうえに、発泡樹脂層が基材に
しっかりと接着しているので、得られた点字印刷物は、
耐久性の優れたきれいな点字印刷物であった。(Example 1) A heat-foaming printing ink having the following composition was placed on a screen prepared in advance and squeezed to perform screen printing. The screen is a screen made of polyamide and the number of lines is 100 mesh / inch. As the base material, a paper OK mat post (manufactured by Shin Oji Paper Co., Ltd.) having a basis weight of 209 g / m 2 was used. Ink composition Styrene / acrylic emulsion 50 parts by weight (minimum film forming temperature 60 ° C) Styrene / acrylic emulsion 40 parts by weight (minimum film forming temperature 10 ° C) Talc (fine particle type) 20 parts by weight Blowing agent (low boiling point hydrocarbon) ) 10 parts by weight Diethylene glycol 10 parts by weight Antifoaming agent (mineral oil type) 2 parts by weight Dispersant (nonionic surfactant) 2 parts by weight Thickener (polymer acrylic type) 2 parts by weight Colorant (aqueous dispersion) Pigment) 2 parts by weight Next, the substrate printed by the above method is uniformly heated with an infrared lamp to foam the printing ink, and then air-cooled,
A braille print was obtained. The braille print obtained had sufficient raised braille characters, a hard surface, and no prickles, so that the braille characters could be read easily without damaging the fingertips. Further, even if 500 sheets are continuously printed using the heat-foamable ink having the above composition, the screen is not clogged and the foamed resin layer is firmly adhered to the substrate. , The obtained braille print is
It was a beautiful braille print with excellent durability.
【００１０】（実施例２）下記の組成からなる加熱発泡
性の印刷インキを、予め製版されたスクリーン上にの
せ、へらでスクイズしてスクリーン印刷を行った。スク
リーンは、ポリエステル製のスクリーンで、その線数
は、１００メッシュ／インチである。基材は、坪量１２
８ｇ／ｍ2 の用紙紀州色上質特厚口（紀州製紙（株）
製）を使用した。 インキ組成 スチレン・アクリル系エマルジョン ３０重量部 （最低造膜温度 ６０℃） スチレン・アクリル系エマルジョン ２０重量部 （最低造膜温度 １０℃） タルク（微粒子型タイプ） １０重量部 発泡剤（低沸点炭化水素） ５重量部 エチレン・グリコール ５重量部 消泡剤（変性シリコーン） １重量部 分散剤（ノニオン系界面活性剤） １重量部 増粘剤（高分子ボリエーテル系） １重量部 着色剤（水性分散顔料） １重量部 次に、上記の方法で印刷した基材を、加熱炉に入れて均
一に加熱し、印刷インキを発泡させた後に、冷却した空
気を当て、点字印刷物を得た。得られた点字印刷物は、
文字の隆起も、２８０μｍで、且つその表面も硬いう
え、鋭い突起状のものもないので、指先を傷めることな
く容易に触読できた。また、上記組成からなる加熱発泡
性インキを使用して、連続的に５００枚印刷しても、ス
クリーンの目詰まりの発生もないうえに、発泡樹脂層が
基材に強固に接着した、きれいな点字印刷物であった。(Example 2) A heat-foaming printing ink having the following composition was placed on a screen prepared in advance and squeezed with a spatula to perform screen printing. The screen is a polyester screen, and the number of lines is 100 mesh / inch. Base material is 12
8 g / m 2 paper Kishu color quality special thick mouth (Kishu Paper Co., Ltd.)
Manufactured) was used. Ink composition Styrene / acrylic emulsion 30 parts by weight (minimum film forming temperature 60 ° C) Styrene / acrylic emulsion 20 parts by weight (minimum film forming temperature 10 ° C) Talc (fine particle type) 10 parts by weight Blowing agent (low boiling point hydrocarbon) ) 5 parts by weight Ethylene glycol 5 parts by weight Antifoaming agent (modified silicone) 1 part by weight Dispersing agent (nonionic surfactant) 1 part by weight Thickener (high molecular weight polyether type) 1 part by weight Coloring agent (aqueous dispersion pigment) ) 1 part by weight Next, the substrate printed by the above method was placed in a heating furnace and uniformly heated to foam the printing ink, and then cooled air was applied to obtain a braille printed matter. The obtained Braille print is
The bulge of the characters was 280 μm, and the surface was hard and there were no sharp projections, so that the fingertips could be easily read without being damaged. Moreover, even when 500 sheets are continuously printed by using the heat-foamable ink having the above composition, the screen is not clogged, and the foamed resin layer is firmly adhered to the base material so that the braille is clean. It was a printed matter.
【００１１】（比較例）本発明に係わる点字印刷物と、
従来法で製造した点字印刷物とを比較するために、下記
の組成からなる加熱発泡性の印刷インキを、予め製版さ
れたスクリーン上にのせ、へらでスクイズしてスクリー
ン印刷を行った。スクリーンは、ポリアミド製のスクリ
ーンで、その線数は、７０メッシュ／インチである。基
材は、坪量１２８ｇ／ｍ2 の用紙紀州色上質特厚口（紀
州製紙（株）製）を使用した。 従来のインキ組成 合成樹脂エマルジョン １００重量部 発泡剤（アゾジカルボンアミド） ２５重量部 エチレングリコール １０重量部 沈降性炭酸カルシウム １０重量部 イミダゾール １５重量部 シリコーン ３重量部 水性分散顔料 １重量部 次に、上記の方法で印刷した基材を、加熱炉に入れ、均
一に加熱して、印刷インキを発泡させた。しかる後に、
冷却した空気を基材に当てて、点字印刷物を得た。得ら
れた点字印刷物は、文字の隆起も、１９０μｍで、且つ
その表面も柔らか過ぎで、耐久性に欠け、触読のしにく
い点字印物であった。(Comparative Example) Braille printed matter according to the present invention,
In order to compare with a Braille printed matter produced by a conventional method, a heat-foaming printing ink having the following composition was placed on a screen made in advance and squeezed with a spatula to perform screen printing. The screen is made of polyamide and has a wire number of 70 mesh / inch. As the base material, a Kishu-color fine-quality extra thick mouth (manufactured by Kishu Paper Co., Ltd.) having a basis weight of 128 g / m 2 was used. Conventional ink composition Synthetic resin emulsion 100 parts by weight Foaming agent (azodicarbonamide) 25 parts by weight Ethylene glycol 10 parts by weight Precipitable calcium carbonate 10 parts by weight Imidazole 15 parts by weight Silicone 3 parts by weight Aqueous dispersion pigment 1 part by weight The substrate printed by the above method was put in a heating furnace and uniformly heated to foam the printing ink. After that,
Cooled air was applied to the substrate to obtain a braille print. The obtained braille printed matter was a braille printed matter in which the protrusion of characters was 190 μm and the surface thereof was too soft, which lacked durability and was hard to read.
【００１２】[0012]
【発明の効果】本願発明による点字印刷物は、上記のよ
うな構成からなるので、従来の点字印刷物に見られるよ
うなスクリーンの目詰まりによるインキ層の欠落した点
字印刷物ではなく、スクリーン版上の画像のとおりの点
字文字の印刷物が得られる。また目詰まりがないので、
必要にして充分なる量のインキがスクリーンの目を通り
抜け、結果的に触読に適した高さの点字文字が得られ
る。さらに、本願発明による点字印刷物は、点字文字を
形成する組成物として、接着性の良いスチレン・アクリ
ル系樹脂、およびタルクを使用しているので、点字文字
が基材表面から剥離するようなこともなく、また得られ
た隆起層の高さも、従来のバーコ印刷法または加熱発泡
法による点字印刷物に比較しても遜色なく、むしろ優れ
たものであった。さらに、発泡した点字文字の表面は、
ツルツルではなく、微凹凸状であるので、非常に触読し
やすい点字文字の印刷物である。また、本願発明による
加熱発泡性インキは、インキの乾燥性・粘性調整剤とし
て、グリコール系溶剤を使用するので、適度な粘性およ
び乾燥速度を有する。このため、連続印刷してもスクリ
ーン版の目詰まり発生はなく、多量、かつ美麗な点字印
刷物が安価に得られた。EFFECTS OF THE INVENTION Since the braille printed matter according to the present invention has the above-mentioned structure, it is not a braille printed matter in which the ink layer is missing due to the clogging of the screen as in the conventional braille printed matter, but an image on the screen plate. The printed matter of Braille characters as follows is obtained. Also, because there is no clogging,
A necessary and sufficient amount of ink passes through the eyes of the screen, resulting in braille characters of suitable height for tactile reading. Furthermore, since the braille printed material according to the present invention uses styrene-acrylic resin having good adhesiveness and talc as the composition for forming the braille character, the braille character may be peeled off from the substrate surface. In addition, the height of the raised layer obtained was not inferior to the braille printed matter obtained by the conventional barco printing method or heat foaming method, and was rather excellent. Furthermore, the surface of the foamed braille is
Since it is not smooth, it is a print of braille characters that is very easy to read because it has fine irregularities. In addition, the heat-foamable ink according to the present invention uses a glycol solvent as an ink drying / viscosity adjusting agent, and thus has an appropriate viscosity and drying rate. For this reason, even if continuous printing is performed, the screen plate is not clogged, and a large amount of beautiful Braille printed matter can be obtained at low cost.
【図１】本発明の点字印刷物の印刷直後の状態を示す図
である。FIG. 1 is a diagram showing a state immediately after printing a braille printed material of the present invention.
【図２】本発明の点字印刷物の断面図である。FIG. 2 is a cross-sectional view of the braille printed material of the present invention.
１ 点字印刷物 ２ 基材 ３ 加熱発泡性印刷インキ層 ４ 発泡樹脂層 ５ スクリーン ６ へら 1 Braille printed material 2 Base material 3 Heat-foamable printing ink layer 4 Foamed resin layer 5 Screen 6 Spatula
Claims (5)
点字印刷物１において、発泡樹脂層４が、スチレン・ア
クリル系樹脂および表面改質剤からなることを特徴とす
る点字印刷物。1. A braille printed matter 1 having a foamed resin layer 4 formed on a base material 2, wherein the foamed resin layer 4 comprises a styrene-acrylic resin and a surface modifier.
脂が、最低造膜温度の異なる少なくとも２種類のスチレ
ン・アクリル系樹脂エマルジョンからなる点字印刷物。2. A braille printed matter, wherein the styrene / acrylic resin according to claim 1 is composed of at least two kinds of styrene / acrylic resin emulsions having different minimum film forming temperatures.
脂が、最低造膜温度４０℃〜６０℃のスチレン・アクリ
ル系樹脂エマルジョン、および最低造膜温度０℃〜１０
℃のスチレン・アクリル系樹脂エマルジョンからなる点
字印刷物。3. The styrene / acrylic resin according to claim 1, wherein the styrene / acrylic resin emulsion has a minimum film forming temperature of 40 ° C. to 60 ° C., and the minimum film forming temperature of 0 ° C. to 10 ° C.
Braille print made of styrene-acrylic resin emulsion at ℃.
３μｍのタルクからなる点字印刷物。4. The surface modifier according to claim 1 has a particle size of 1 to
Braille print consisting of 3 μm talc.
ン、タルク、発泡剤、およびグリコール系溶剤からなる
点字印刷用の加熱発泡性印刷インキ。5. A heat-foamable printing ink for braille printing, comprising a styrene / acrylic resin emulsion, talc, a foaming agent, and a glycol solvent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7044595A JPH08238837A (en) | 1995-03-06 | 1995-03-06 | Braille print and printing ink for the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7044595A JPH08238837A (en) | 1995-03-06 | 1995-03-06 | Braille print and printing ink for the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08238837A true JPH08238837A (en) | 1996-09-17 |
Family
ID=13431711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7044595A Withdrawn JPH08238837A (en) | 1995-03-06 | 1995-03-06 | Braille print and printing ink for the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08238837A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005055409A1 (en) * | 2005-11-17 | 2007-05-24 | Man Roland Druckmaschinen Ag | Rotary printing process uses a heat source such as an IR or UV or laser to provide a structured 3D surface |
| WO2009106799A1 (en) * | 2008-02-29 | 2009-09-03 | De La Rue International Limited | Security document comprising a security feature having a layer with particles |
| JP2011195749A (en) * | 2010-03-23 | 2011-10-06 | Ishizuka Glass Co Ltd | Paint for thick-walled printing, method for thick-walled printing, and thick-walled printed matter |
| JP2020079377A (en) * | 2018-11-14 | 2020-05-28 | ビッグテクノス株式会社 | Foamable screen printing ink composition, foam layer, method for producing the same and adhesive product |
| CN114851693A (en) * | 2022-04-28 | 2022-08-05 | 陕西科技大学 | Movable printing device for manufacturing flexible braille products |
| KR20220145108A (en) * | 2021-04-21 | 2022-10-28 | 대한민국(문화재청 국립문화재연구원장) | Hactile book printing methods and printing devices |
-
1995
- 1995-03-06 JP JP7044595A patent/JPH08238837A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005055409A1 (en) * | 2005-11-17 | 2007-05-24 | Man Roland Druckmaschinen Ag | Rotary printing process uses a heat source such as an IR or UV or laser to provide a structured 3D surface |
| WO2009106799A1 (en) * | 2008-02-29 | 2009-09-03 | De La Rue International Limited | Security document comprising a security feature having a layer with particles |
| EA019015B1 (en) * | 2008-02-29 | 2013-12-30 | Де Ля Рю Интернэшнл Лимитед | Security document comprising a security feature having a layer with particles |
| JP2011195749A (en) * | 2010-03-23 | 2011-10-06 | Ishizuka Glass Co Ltd | Paint for thick-walled printing, method for thick-walled printing, and thick-walled printed matter |
| JP2020079377A (en) * | 2018-11-14 | 2020-05-28 | ビッグテクノス株式会社 | Foamable screen printing ink composition, foam layer, method for producing the same and adhesive product |
| KR20220145108A (en) * | 2021-04-21 | 2022-10-28 | 대한민국(문화재청 국립문화재연구원장) | Hactile book printing methods and printing devices |
| CN114851693A (en) * | 2022-04-28 | 2022-08-05 | 陕西科技大学 | Movable printing device for manufacturing flexible braille products |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6506445B2 (en) | Image transfer sheets and a method of manufacturing the same | |
| JPH08207450A (en) | Heat transfer sheet, heat transfer body and heat transfer method | |
| JPH08238837A (en) | Braille print and printing ink for the same | |
| JPH0339294A (en) | Film for thermal screen printing base paper | |
| US4404249A (en) | Thermal imprinting of substrates | |
| JPS62240588A (en) | Sheet to be transferred and decoration method thereof | |
| KR101995035B1 (en) | Color Board With combinated Plurality Color And Manufacturing Method Thereof | |
| JP2946030B2 (en) | Thermal head heat-sensitive stencil for screen printing and stencil making method using the stencil | |
| US4581278A (en) | Thermal transfer imprinting | |
| JP2000318306A (en) | Ink-jet sheet and water-resistant printing sheet | |
| WO2000040661A1 (en) | Printing composition, process and printing device using the same | |
| JPH08276651A (en) | Three-dimensionally printed seal and manufacture thereof | |
| JPH086492A (en) | Braille printed matter and its production | |
| JP3585533B2 (en) | Braille printed matter and its manufacturing method | |
| US3186862A (en) | Pressure-sensitive transfer sheets | |
| KR960000776B1 (en) | Post-card with decoration sticker and the method for production | |
| WO2000050248A1 (en) | Improvements in or relating to mass transfer printing | |
| JP3641317B2 (en) | Ink composition for thermal transfer sheet and thermal transfer sheet | |
| JP2715274B2 (en) | Heat transfer sheet | |
| JP2519841Y2 (en) | Synthetic resin board with glossy wood pattern | |
| KR100363745B1 (en) | The method for manufacturing and printing of heat printing plate | |
| US2220745A (en) | Multicolor printing plate | |
| JP2618372B2 (en) | Heat transfer sheet | |
| JPS6087087A (en) | Silk screen printing method | |
| CN109982857A (en) | High function thermal transfer releasing agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20020507 |