JPS5830157B2 - discharge recording material - Google Patents
discharge recording materialInfo
- Publication number
- JPS5830157B2 JPS5830157B2 JP54074577A JP7457779A JPS5830157B2 JP S5830157 B2 JPS5830157 B2 JP S5830157B2 JP 54074577 A JP54074577 A JP 54074577A JP 7457779 A JP7457779 A JP 7457779A JP S5830157 B2 JPS5830157 B2 JP S5830157B2
- Authority
- JP
- Japan
- Prior art keywords
- carbon black
- colored layer
- recording material
- particle size
- recording
- 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
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Description
【発明の詳細な説明】
本発明は紙やプラスチック等の支持体に、カーボンブラ
ックを含有する着色層及び金属蒸着層を順次形成した放
電記録材料に関するもので、特に着色層を改良しすぐれ
た印字特性を有する放電記録材料を提供するものである
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a discharge recording material in which a colored layer containing carbon black and a metal vapor deposited layer are successively formed on a support such as paper or plastic. The object of the present invention is to provide a discharge recording material having the following characteristics.
放電記録は記録材料上の記録針と帰路電極との間に信号
電圧を印加して記録針下の記録材料の表面のみを放電破
壊して発色させるものであるが、多記録針固定型の記録
装置の場合には、その記録条件がきびしいことから帰路
電極での放電（アースリターン）や放電粕の記録針への
融着が生じ易い。In discharge recording, a signal voltage is applied between the recording needle on the recording material and the return electrode, causing only the surface of the recording material under the recording needle to be destroyed by discharge and coloring. In the case of a recording device, since the recording conditions are severe, discharge at the return electrode (earth return) and discharge sludge are likely to be fused to the recording needle.
そこでこれを防ぐために記録材料の着色層にカーボンブ
ラックを混入して導電性を付与する処理が行われている
が、な釦充分に防ぐことはできず、印字性かや＼劣る傾
向が見られた。In order to prevent this, carbon black is mixed into the colored layer of the recording material to give it electrical conductivity, but this cannot be prevented sufficiently and printability tends to be somewhat inferior. Ta.
一般にカーボンブラックは単一粒子が小さく凝集し易い
とは云え、従来の方法で結着剤中に分散させて着色層形
成用塗材を製造するとその凝集の粒径は極めて小さく１
００μｍ以下である。Although single particles of carbon black are generally small and tend to agglomerate, when a coating material for forming a colored layer is produced by dispersing it in a binder using the conventional method, the particle size of the agglomerates is extremely small.
00 μm or less.
捷た、１μｍ程度の凝集が得られたとしても安定性はよ
くない。Even if a shriveled aggregation of about 1 μm is obtained, the stability is not good.
したがって従来のこの種放電記録材料のカーボデブラッ
クを含有する着色層に釦いてはカーボンブラックの粒径
は１μｍ以下である。Therefore, in the colored layer containing carbide black of this type of conventional discharge recording material, the particle size of carbon black is 1 μm or less.
そして一般にカーボンブラックを分散させた印刷インキ
など着色用塗材に釦いてはカーボンブラックの凝集を抑
えるようにすることが常識である。Generally speaking, it is common knowledge that when using a coloring coating material such as a printing ink in which carbon black is dispersed, the agglomeration of carbon black should be suppressed.
本発明者らは従来のこの種放電記録材料を更に改良すべ
く結着剤中に分散されたカーボンブラック粒子の着色層
中に釦ける粒径について種々検討の結果、意外にも放電
記録材料の着色層塗材にかいては逆にある範囲の粒径の
凝集体に形成したものを用いた場合、アースリターン現
象や融着が確実に防止されるばかりでなく、すぐれた印
字特性が得られる知見を得本発明に到達した。In order to further improve this type of conventional discharge recording material, the present inventors conducted various studies on the particle size of carbon black particles dispersed in a binder and found in the colored layer. On the other hand, when using colored layer coating materials that are formed into aggregates with particle sizes within a certain range, not only can earth return phenomena and fusion be reliably prevented, but also excellent printing characteristics can be obtained. We obtained knowledge and arrived at the present invention.
すなわち本発明は、着色層をカーボンブラックを主体と
する粒径２〜５０μｍの凝集体により構成したことを特
徴とするものである。That is, the present invention is characterized in that the colored layer is composed of aggregates mainly composed of carbon black and having a particle size of 2 to 50 μm.
凝集体が２μｍより小さいと従来のカーボンブラックを
使用した記録材料と同様にアースリターン釦よび融着が
充分防ぎ得す、かつ再現性に乏しい。If the aggregate size is smaller than 2 μm, the earth return button and fusion can be sufficiently prevented as in conventional recording materials using carbon black, and reproducibility is poor.
また凝集粒子の粒径が５０μｍを超えるとアースリター
ンや融着は起らないが、記録材料表面に釦いて突起物が
生じ、これが記録中に削りとられて記録材料上に傷とな
って表われ記録が不鮮明なものとなる。Furthermore, if the particle size of the aggregated particles exceeds 50 μm, earth return and fusion will not occur, but protrusions will form on the surface of the recording material, and these will be scraped off during recording and become scratches on the recording material. Our records become unclear.
本発明にむいて上記のようなカーボンブラックを主体と
する凝集体よりなる着色層を形成させるには、例えば硝
化綿とマレイン化ロジンを溶剤に溶解した後これにカー
ボンブラックを添加し攪拌混合して分散せしめて第一次
分散液を得る。In order to form a colored layer composed of aggregates mainly composed of carbon black in accordance with the present invention, for example, nitrified cotton and maleated rosin are dissolved in a solvent, and then carbon black is added thereto and mixed by stirring. to obtain a primary dispersion.
この際の配合割合は通常カーボンブラック／硝化綿／マ
レイン化ロジン＝１１０．５〜２ ／ ０．５〜２重量
化の範囲が好渣しい。In this case, the preferred blending ratio is usually carbon black/nitrified cotton/maleated rosin=110.5-2/0.5-2 weight.
この分散液中のカーボンブラック凝集体の粒径は約２０
μｍ〜１ｗｒＬであるので、この１１支持体に塗布する
と黒色の隠蔽力は殆んどない。The particle size of carbon black aggregates in this dispersion is approximately 20
Since it is μm to 1 wrL, there is almost no black hiding power when applied to this 11 support.
したがってこの第一次分散液に結着用樹脂、着色用染料
または顔料および必要に応じ可塑剤を添加してよく分散
せしめてカーボンブラック凝集体の粒径を２〜５０μｍ
に調整する。Therefore, a binding resin, a coloring dye or pigment, and, if necessary, a plasticizer are added to this primary dispersion to disperse it well, and the particle size of carbon black aggregates is adjusted to 2 to 50 μm.
Adjust to.
なお結着用樹脂はカーボンブラックの凝集を破壊しない
ものであればよく、特に限定されるものではないが、硝
化綿及び／又はマレイン化ロジンが好ましい。The binding resin may be any resin that does not destroy the agglomeration of carbon black, and is not particularly limited, but nitrified cotton and/or maleated rosin are preferred.
このようにして得られた第二次分散液を通常の支持体に
塗布して着色層を形成せしめる。The secondary dispersion thus obtained is applied to a conventional support to form a colored layer.
形成された着色層はカーボンブラックを主体とする粒径
２〜５０μｍの凝集体が結着用樹脂により接着されたも
のである。The colored layer thus formed is composed of aggregates mainly composed of carbon black and having a particle size of 2 to 50 μm, which are adhered together with a binding resin.
なふ・第二次分散液のカーボンブラック凝集体粒子の粒
径の調整は通常機械的な分散によって行うが、溶剤や可
塑剤の添加によって制御することもできる。The particle size of the carbon black aggregate particles in the secondary dispersion liquid is usually adjusted by mechanical dispersion, but it can also be controlled by adding a solvent or a plasticizer.
本発明にかける着色層はカーボンブラックを主体とする
は、上述のような粒径の凝集体により形成さ江ω偽から
、隠蔽力を補うため任意の着色剤を混合併用することが
できる。The colored layer according to the present invention is mainly composed of carbon black, but since it is formed by aggregates having the particle size as described above, any coloring agent may be mixed and used in combination to supplement the hiding power.
これにより各種のカラー発色が可能である。This allows various colors to be produced.
渣た−たん形成した着色層の上にさらに０．１〜０，５
μｍ程度の異色の着色層を設けてもよい。Further 0.1 to 0.5 on the colored layer formed on the residue
A colored layer having a different color on the order of μm may be provided.
この場合記録印加電圧を変えることにより二色発色も可
能となる。In this case, two-color development is also possible by changing the recording applied voltage.
更に上記発色層に釦いて光沢消去が不足した場合にはシ
リカゲル、水酸化アルミニウム、硫酸バリウム又は有機
顔料など粗面化剤を添加することもできる。Furthermore, if the color-forming layer is buttoned and gloss removal is insufficient, a roughening agent such as silica gel, aluminum hydroxide, barium sulfate or an organic pigment may be added.
このようにして着色層を形成した後その上に常法により
金属蒸着層を形成する。After forming the colored layer in this manner, a metal vapor deposition layer is formed thereon by a conventional method.
さらに必要に応じ適宜の樹脂により保護層を設けること
もできる。Furthermore, a protective layer may be provided using a suitable resin as required.
以下実施例をあげて説明する。This will be explained below by giving examples.
実施例 １
（カーボンブラック凝集体 −次分散液の製造）硝化綿
とマレイン化ロジンと酢酸エチルを重量比で１：１ニア
で混合し充分溶解した後、これに硝化綿と同量のカーボ
ンブラックを加えて、ガラスピーズと共にガラス容器に
入れＲｅｄＤｅｖｉ１社製ペイントコンディショナーを
用いてよく分散させ、粒径２０μｍ〜１間のカーボンブ
ラック凝集体の分散物を得た（−次分散液）。Example 1 (Production of carbon black aggregate - secondary dispersion) After mixing nitrified cotton, maleated rosin and ethyl acetate at a weight ratio of 1:1 and sufficiently dissolving them, the same amount of carbon black as the nitrified cotton was added. was added and placed in a glass container together with glass peas and well dispersed using a paint conditioner manufactured by RedDevi 1 to obtain a dispersion of carbon black aggregates with a particle size of 20 μm to 1 (−order dispersion).
この第一次分散液に更に結着用樹脂として硝化綿及びマ
レイン化ロジン等を補充して後述する実施例に示すよう
にさらに第二次の分散を行い、カーボンブラック凝集体
の粒径を２〜５０μｍに調製する（第二次分散液）。This primary dispersion liquid is further supplemented with nitrified cotton, maleated rosin, etc. as a binding resin, and then a second dispersion is performed as shown in the examples below, and the particle size of the carbon black aggregates is reduced to 2 to 2. Adjust to 50 μm (secondary dispersion).
なち・この二次分散時に可塑剤（例えばジオクチルフタ
レート）を少量添加すると短時間の分散で所要の粒径を
得ることができる。That is, if a small amount of plasticizer (for example, dioctyl phthalate) is added during this secondary dispersion, the desired particle size can be obtained in a short time.
この場合溶剤として酢酸エチルを単独で用いると１０μ
ｍ程度の凝集体が得られ、酢酸エチル、トルエン、エチ
ルセロソルブの混合溶剤を使用すると２０〜３０μｍの
凝集体が得られる。In this case, if ethyl acetate is used alone as a solvent, the
If a mixed solvent of ethyl acetate, toluene, and ethyl cellosolve is used, aggregates of 20 to 30 μm can be obtained.
実施例 ２
実施例１にち−いて調製した一次分散液３０ｆに黒色染
料２グ硝化綿７グ、マレイン化ロジン２．５グ、可塑剤
３ＬｉＩおよび酢酸エチル５５２を添加して二次分散を
１５分行った。Example 2 To 30 f of the primary dispersion prepared in accordance with Example 1, 2 g of black dye, 7 g of nitrified cotton, 2.5 g of maleated rosin, 3 LiI plasticizer, and 552 g of ethyl acetate were added to obtain a secondary dispersion of 15 g. I went for a minute.
このようにして得られた二次分散液を５０ｆ／ｍ’の上
質紙に乾燥固形分６９／ｒｒｉ’に塗工し乾燥して着色
層を形成した。The thus obtained secondary dispersion was applied to a 50 f/m' high-quality paper to a dry solid content of 69/rri' and dried to form a colored layer.
次にこの着色層の上にアルミニウムを表面抵抗が２Ω／
口となるように蒸着して放電記録材料とした。Next, aluminum is placed on top of this colored layer with a surface resistance of 2Ω/
The material was vapor-deposited to form a discharge recording material.
記録は日本ハムリン社製プリンターｅｓｐ −３型を用
い、５０ｖで行った。Recording was carried out at 50V using a Nippon Hamlin printer model ESP-3.
結果はアースリターンも融着もない鮮明な黒発色の記録
であった。The result was a clear black color with no earth return or fusion.
実施例 ３
実施例１で調製した一次分散液２０′？にカーボンブラ
ックＩＩ？、シリカ１グ、硝化綿８１、マレイン化ロジ
ン６１、酢酸エチル７４２を加え、二次分散を行った。Example 3 Primary dispersion 20' prepared in Example 1? Carbon Black II? , 1 g of silica, 81 g of nitrified cotton, 61 g of maleated rosin, and 742 g of ethyl acetate were added to perform secondary dispersion.
米坪７６ｆ？／ｒｒ？の上質紙に乾燥固形分が５ｆ／ｒ
ｒｌになるように二次分散液を塗工し、乾燥して着色層
を形成した。Yonetsubo 76f? /rr? High quality paper with dry solids content of 5f/r
The secondary dispersion liquid was applied so as to have a color distribution of .rl and dried to form a colored layer.
さらはこの着色層上に表面抵抗が３Ω／口となるように
アルミニウムを蒸着して記録材料とした。Furthermore, aluminum was vapor-deposited on this colored layer so that the surface resistance was 3 Ω/hole to prepare a recording material.
記録は日本ハムリン製放電破壊プリンターｅｓｐ−２型
を用い５０■で行った。Recording was carried out using a Nippon Hamlin discharge rupture printer model ESP-2 at 50 .mu.m.
着色層塗材調整時の二次分散時間と記録特性を表１に示
した。Table 1 shows the secondary dispersion time and recording characteristics when preparing the colored layer coating material.
実施例 ４ 実施例１の一次分散液３０グに赤色顔料２Ｐ。Example 4 Red pigment 2P was added to 30 g of the primary dispersion of Example 1.
シリカ２？硝化綿７１、マレイン化ロジン５１＄−よび
酢酸エチル５４Ｉ？を添加して、さらに二次分散を行っ
た。Silica 2? Nitrified cotton 71, maleated rosin 51$- and ethyl acetate 54I? was added to perform further secondary dispersion.
この赤色塗料を５０ｆ／？？Ｚ２の上質紙に絶乾４ｆｌ
／ｒｒ？になるように塗工し、乾燥して赤色の着色層を
形成した。This red paint is 50f/? ? Absolutely dry 4fl on Z2 high-quality paper
/rr? It was coated to give a red color layer and dried to form a red colored layer.
さらにこの赤色層の上に表面抵抗が３Ω／口となるよう
にアルミニウムを蒸着して記録材料とした。Furthermore, aluminum was vapor-deposited on this red layer so that the surface resistance was 3 Ω/hole to obtain a recording material.
日本ハムリン社製プリンターｃｓｐ ２型を用いて５
０Ｖで記録した結果を表２に示す。5 using Nippon Hamlin printer CSP type 2
The results recorded at 0V are shown in Table 2.
Claims (1)
層蒸着層が順次節された放電記録材料に釦いて、前記着
色層がカーボンブラックを主体とする粒径２〜５０μｍ
の凝集体からなることを特徴とする放電記録材料。1. Press a discharge recording material in which a colored layer containing carbon black and a gold layer vapor-deposited layer are sequentially formed on a support, and the colored layer has a particle size of 2 to 50 μm mainly composed of carbon black.
A discharge recording material comprising an aggregate of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54074577A JPS5830157B2 (en) | 1979-06-15 | 1979-06-15 | discharge recording material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54074577A JPS5830157B2 (en) | 1979-06-15 | 1979-06-15 | discharge recording material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56194A JPS56194A (en) | 1981-01-06 |
| JPS5830157B2 true JPS5830157B2 (en) | 1983-06-27 |
Family
ID=13551167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54074577A Expired JPS5830157B2 (en) | 1979-06-15 | 1979-06-15 | discharge recording material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5830157B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0630960B2 (en) * | 1983-04-27 | 1994-04-27 | 大日本印刷株式会社 | Thermal magnetic recording medium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5152867A (en) * | 1973-12-08 | 1976-05-10 | Suisse Horlogerie | yobihyojibanoyobi hizukehyojiban no kudosochi |
-
1979
- 1979-06-15 JP JP54074577A patent/JPS5830157B2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5152867A (en) * | 1973-12-08 | 1976-05-10 | Suisse Horlogerie | yobihyojibanoyobi hizukehyojiban no kudosochi |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56194A (en) | 1981-01-06 |
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