JPS60145880A - Pressure-sensitive copying paper - Google Patents
Pressure-sensitive copying paperInfo
- Publication number
- JPS60145880A JPS60145880A JP129484A JP129484A JPS60145880A JP S60145880 A JPS60145880 A JP S60145880A JP 129484 A JP129484 A JP 129484A JP 129484 A JP129484 A JP 129484A JP S60145880 A JPS60145880 A JP S60145880A
- Authority
- JP
- Japan
- Prior art keywords
- coat layer
- coating layer
- colored
- pressure
- layer
- 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
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
- B41M5/10—Duplicating or marking methods; Sheet materials for use therein by using carbon paper or the like
Landscapes
- Duplication Or Marking (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は感圧複写紙に関するものである。[Detailed description of the invention] The present invention relates to pressure sensitive copying paper.
近来、図書館等で硫酸バンドをサイズ剤に使用した本が
経時変化によりポロポロになって消滅するという問題が
生じている。これはサイズ剤中の硫酸バンドにより紙が
酸性になることにより起るものである。このことは事務
用紙においても例外ではない。従って、感圧複写紙にお
いても中性紙を用いてこのような被害を避けている。し
かし乍ら、インク中に脂肪酸が含まれているときは、こ
れと中性紙中の顔料である炭酸カルシウムとが反応して
転写不良を起す。脂肪酸を除けばこの欠点ゆ解消できる
が、脂肪酸は溶剤中での結晶性が大きく、不連続塗膜と
なるものである。そしてこの脂肪酸の粘着性を利用し、
転写効果が発生するものであり、脂肪酸を除くと、充分
な、不連続性、粘着性が得られず、満足する品質のもの
が出来ない。Recently, there has been a problem in libraries where books using sulfuric acid bands as a sizing agent become crumbly and disappear due to changes over time. This occurs because the paper becomes acidic due to sulfuric acid bands in the sizing agent. This is no exception for office papers. Therefore, neutral paper is used in pressure-sensitive copying paper to avoid such damage. However, if the ink contains fatty acids, this reacts with calcium carbonate, a pigment in the neutral paper, resulting in poor transfer. This drawback can be overcome by removing fatty acids, but fatty acids are highly crystalline in solvents and result in discontinuous coatings. Using the adhesive properties of this fatty acid,
A transfer effect occurs, and if fatty acids are removed, sufficient discontinuity and tackiness cannot be obtained, and a product of satisfactory quality cannot be obtained.
本発明はこのような従来技術の欠点を解決した感圧複写
紙を提供するものであって、本発明の感圧複写紙は、ベ
ースの裏面に、有色塗膜層を有し、更にこの有色塗膜層
の上に、低分子量エチレン−酢酸ビニル共重合体の（必
要に応じ、ワックスも含む）不連続接着塗膜層を設けて
成るものである。The present invention provides a pressure-sensitive copying paper that solves the drawbacks of the prior art, and the pressure-sensitive copying paper of the present invention has a colored coating layer on the back side of the base, A discontinuous adhesive coating layer of a low molecular weight ethylene-vinyl acetate copolymer (including wax if necessary) is provided on the coating layer.
支持体としては紙類、フィルム類などを用いることがで
きる。Paper, films, etc. can be used as the support.
有色塗膜層は、顔料などの着色剤、体質顔料及び合成樹
脂などからなる。The colored coating layer consists of a coloring agent such as a pigment, an extender pigment, a synthetic resin, and the like.
着色顔料としては、例えば、カーボンブラック、群青、
シアニンブルー、ミロリーブルー、レッドＲＣを用いる
ことができる。Examples of color pigments include carbon black, ultramarine blue,
Cyanine blue, Milory blue, and red RC can be used.
体質顔料としては、例えば、炭酸カルシウム、カオリン
、クレー、タルクを用いろ。Examples of extender pigments include calcium carbonate, kaolin, clay, and talc.
合成樹脂としては、例えば、スチレン・マレイン酸樹脂
、ポリ塩化ビニル、ポリビニルブチラール、エチルセル
ロース、部分ケン化ポリビニルアルコール、硝化綿を用
いることができる。As the synthetic resin, for example, styrene/maleic acid resin, polyvinyl chloride, polyvinyl butyral, ethyl cellulose, partially saponified polyvinyl alcohol, and nitrified cotton can be used.
この有色塗膜層を形成するには常法により、たとえば、
この合成樹脂を溶かすことのできる溶剤（例えばメタノ
ール、エタノール、トルエン、メチルエチルケトン、酢
酸エチルなどから選ばれたもの）と、着色顔料、体質顔
料、合成樹脂とを混合して有色塗剤を形成し、この塗剤
をベース上に塗布し、乾燥する。To form this colored coating layer, a conventional method is used, for example,
A colored paint is formed by mixing a solvent that can dissolve this synthetic resin (e.g., one selected from methanol, ethanol, toluene, methyl ethyl ketone, ethyl acetate, etc.), a colored pigment, an extender pigment, and a synthetic resin, This paint is applied onto the base and allowed to dry.
不連続接着塗膜層用の材料としては、低分子量エチレン
・酢酸ビニル共重合体を用いる。A low molecular weight ethylene/vinyl acetate copolymer is used as the material for the discontinuous adhesive coating layer.
この共重合体としては酢酸ビニル分が２〜３０重量係の
ものが好適である。この範囲の外では転写性が劣り、転
写しなかったり、転写しすぎたりする場合がある。分子
量とじては平均分子量が５００〜４０００のものが好適
であり、この範囲外では転写性が劣る。This copolymer preferably has a vinyl acetate content of 2 to 30% by weight. Outside this range, the transferability is poor, and there are cases where no transfer or too much transfer occurs. Regarding the molecular weight, it is preferable to have an average molecular weight of 500 to 4,000, and if it is outside this range, the transferability will be poor.
必要に応じ、ワックス、例えば、マイクロクリスタルワ
ックス、パラフィンワックス、を添加して用いてもよい
。If necessary, wax such as microcrystal wax or paraffin wax may be added.
不連続接着塗膜層の形成は、エチレン−酢酸ビニル共重
合体を溶剤、例えば、トルエン等（但し、有色塗膜層を
侵さない溶剤を選ぶ）に加熱溶解゛（例えば、約５０ｔ
ｌＬ、徐冷する事により、ゲル状溶液とし、有色塗膜層
上にソルベントコートにて形成できる。また、エチレン
−酢酸ビニル共重合体を加熱溶融し、有色塗膜層上にホ
ットメルトコートし、徐冷（温風冷却）する事により形
成できる。The discontinuous adhesive coating layer is formed by heating and dissolving the ethylene-vinyl acetate copolymer in a solvent such as toluene (choose a solvent that does not attack the colored coating layer) (for example, about 50 tons).
By cooling slowly, it becomes a gel-like solution, which can be formed on a colored coating layer by solvent coating. Alternatively, it can be formed by heating and melting an ethylene-vinyl acetate copolymer, hot-melt coating the colored coating layer, and slowly cooling (cooling with warm air).
不連続接着塗膜層とは均一なフィルム状皮膜ではなく、
微結晶状となった皮膜で、圧力に対して破壊され易く、
且つ接着力を有する層である。A discontinuous adhesive coating layer is not a uniform film-like coating, but
It is a microcrystalline film that is easily destroyed by pressure.
In addition, it is a layer that has adhesive strength.
実施例１
有色塗膜層 ポリビニルブチラール １．０重量部カオ
リン ５０．０ 重量部
ミロリーブルー ４，０〃
メタノール ３０．０ 〃
トルエン ２０．０ ／１
をボールミル、アトライター等で分散し、支持体の裏面
にコーターで塗布、乾燥し、有色塗膜層を設ける。Example 1 Colored coating layer Polyvinyl butyral 1.0 parts by weight Kaolin 50.0 parts by weight Milory Blue 4.0 Methanol 30.0 Toluene 20.0/1 were dispersed using a ball mill, attritor, etc., and coated on the back surface of the support. It is applied with a coater and dried to form a colored coating layer.
トルエン ９０．０ ４
次に上記低分子量エチレン−酢酸ビニル共重合体（酢酸
ビニル２．０〜３０％）をトルエンに約５０Ｃで加熱溶
解し、３０ ｃに冷却後、有色塗膜層の表面にコーター
で塗布乾燥し、不連続接着塗膜層を設ける。Toluene 90.0 4 Next, the above-mentioned low molecular weight ethylene-vinyl acetate copolymer (vinyl acetate 2.0-30%) was dissolved in toluene by heating at about 50C, and after cooling to 30C, it was applied to the surface of the colored coating layer. Apply with a coater and dry to form a discontinuous adhesive coating layer.
実施例２
有色塗膜層 スチレン・マレイン酸樹脂 ２．０重量部
炭酸カルシウム ４０．０ 。Example 2 Colored coating layer Styrene/maleic acid resin 2.0 parts by weight Calcium carbonate 40.0 parts.
カーボンブラック １０．０ ／。Carbon black 10.0/.
メタノール ５０．０ ｌｌ
をボールミル、アトライター等で分散し、支持体の裏面
にコーターで塗布、乾燥し、有色塗膜を設ける。Disperse 50.0 liters of methanol using a ball mill, attritor, etc., apply to the back side of the support using a coater, and dry to form a colored coating.
ワックス
ホワイトカーボ′ン １．０＃
トルエン ｉ ｏ ｏ、 ｏ ｔｔ
をボールミルにて加熱分散し、（約５００）３０Ｃに冷
却後、着色層の表面にコーターで塗布乾燥し、接着層を
設ける。Wax white carbon 1.0# toluene i o o, ott is heated and dispersed in a ball mill, cooled to (approximately 500) 30C, coated on the surface of the colored layer with a coater and dried to form an adhesive layer.
実施例３
有色塗膜層 エチルセルロース ２．０ 重量部カオリ
ン ４５、ｏ 〃
シアニンブルー ３，０〃
トルエン ５０．０ １／
をボールミル、アトライター等で分散し、支持体の裏面
にコーターで塗布、乾燥し、有色塗膜層を設ける。Example 3 Colored coating layer Ethyl cellulose 2.0 parts by weight Kaolin 45,0 Cyanine blue 3,0 Toluene 50,0 1/2 Dispersed using a ball mill, attritor, etc., coated on the back side of the support with a coater, and dried. Then, a colored coating layer is provided.
不連続接着塗膜層 低分子量エチレン酢ビ ５０．０重
量部マイクロクリスタリンワックス ５０．０ ／１ホ
ワイトカーボン １５．ＯＮ
をボールミル、アトライター等で加熱分散し、着色層の
表面にホットメルトコーターにて約９５〜１００Ｃで塗
布冷却し、接着層を設ける。Discontinuous adhesive coating layer Low molecular weight ethylene vinyl acetate 50.0 parts by weight Microcrystalline wax 50.0 /1 White carbon 15. ON is heated and dispersed using a ball mill, attritor, etc., and coated on the surface of the colored layer at about 95 to 100 C using a hot melt coater, and cooled to form an adhesive layer.
出願人 ゼネラル株式会社
手続補正群
昭和５９年２ 月２９１１
字＝’ｌ、１’＋・片長′１Ｃ若杉和夫殿ＩＩ財Ｉの裁
ド昭和５９年特許 願第 １２９４ 号２ 発明り多角
・
感圧複写紙
、３ 補正をする者
１、代理人
５補正の対象 （１）明細書の「発明の詳細な説明」の
欄６袖正の内容 別紙のとおり
（１）明細書第６Ｌ′ｆ第１１行目及び第７白”第６９
−］１−１の「接着層」を夫々
「不連続接着塗膜層」と訂正する。Applicant General Co., Ltd. Procedural Amendment Group February 2911 Character='l, 1'+・Piece length'1C Kazuo Wakasugi II, 1982 Patent Application No. 1294 2 Invention Polygonal/Pressure Sensitive Copy paper, 3 Person making the amendment 1, agent 5 Subject of amendment (1) Contents of sleeve correction in column 6 of “Detailed Description of the Invention” of the specification As shown in the attached sheet (1) Specification No. 6L′f No. 11 Row and 7th white” 69th
-] "Adhesive layer" in 1-1 is corrected to "discontinuous adhesive coating layer" respectively.
Claims (1)
ン−酢酸ビニル共重合体の不連続接着塗膜層を設けてな
ることを特徴とする感圧複写紙。A pressure-sensitive copying paper characterized in that a colored coating layer is provided on a support, and a discontinuous adhesive coating layer of ethylene-vinyl acetate copolymer is further provided on the layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP129484A JPS60145880A (en) | 1984-01-10 | 1984-01-10 | Pressure-sensitive copying paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP129484A JPS60145880A (en) | 1984-01-10 | 1984-01-10 | Pressure-sensitive copying paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60145880A true JPS60145880A (en) | 1985-08-01 |
Family
ID=11497442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP129484A Pending JPS60145880A (en) | 1984-01-10 | 1984-01-10 | Pressure-sensitive copying paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60145880A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62253485A (en) * | 1986-04-26 | 1987-11-05 | General Kk | Pressure sensitive copy paper |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5266009A (en) * | 1975-11-28 | 1977-06-01 | Sumitomo Naugatuck | Color papers for presure sensitized copy |
-
1984
- 1984-01-10 JP JP129484A patent/JPS60145880A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5266009A (en) * | 1975-11-28 | 1977-06-01 | Sumitomo Naugatuck | Color papers for presure sensitized copy |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62253485A (en) * | 1986-04-26 | 1987-11-05 | General Kk | Pressure sensitive copy paper |
| JPH0515391B2 (en) * | 1986-04-26 | 1993-03-01 | Gen Corp |
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