JPH082701B2 - Original plate for lithographic printing - Google Patents
Original plate for lithographic printingInfo
- Publication number
- JPH082701B2 JPH082701B2 JP61209326A JP20932686A JPH082701B2 JP H082701 B2 JPH082701 B2 JP H082701B2 JP 61209326 A JP61209326 A JP 61209326A JP 20932686 A JP20932686 A JP 20932686A JP H082701 B2 JPH082701 B2 JP H082701B2
- Authority
- JP
- Japan
- Prior art keywords
- lithographic printing
- heat
- printing plate
- wax
- acid ester
- 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
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
Description
【発明の詳細な説明】 〔技術分野〕 本発明は、平版印刷用原版に関し、更に詳しくは、光
源及び現像定着等の処理を必要としない熱印字装置を用
いて容易に平版印刷刷版を製造することができる平版印
刷用原版に関する。TECHNICAL FIELD The present invention relates to a lithographic printing plate precursor, and more specifically, a lithographic printing plate is easily manufactured using a thermal printing device that does not require treatment such as a light source and development and fixing. The present invention relates to a lithographic printing plate precursor that can be used.
平版印刷刷版の作成方法としては、（１）親水性表面
を有する支持体上にインクジェットを適用する方法（特
開昭51−84303号、特開昭56−6215号、特開昭56−11345
6号）（２）親水性表面を有する支持体を用いてワイヤ
ードット式や熱転写により製版する方法（特開昭58−19
3154号、特開昭59−76260号）（３）有機光導電体を使
用するもの（特開昭60−239762号）（４）フタロシアニ
ンと酸化亜鉛の分散系を使用したもの（特開昭60−2401
060号）（５）放電破壊により製版するもの（特開昭54
−6602号、特開昭50−59113号、特開昭60−194467号）
（６）レーザー光で親水層や疎水層を除去する方法（特
開昭50−113307号）やヒートモードで製版する方法（特
開昭50−158405号）等が知られている。As a method of preparing a lithographic printing plate, (1) a method of applying an ink jet on a support having a hydrophilic surface (JP-A-51-84303, JP-A-56-6215, JP-A-56-11345).
No. 6) (2) A method of making a plate by a wire dot method or thermal transfer using a support having a hydrophilic surface (JP-A-58-19).
No. 3154, JP-A-59-76260) (3) Using an organic photoconductor (JP-A-60-239762) (4) Using a dispersion system of phthalocyanine and zinc oxide (JP-A-60) −2401
No. 060) (5) Plate-making by discharge breakdown (JP-A-54)
-6602, JP-A-50-59113, JP-A-60-194467)
(6) Known methods include a method of removing a hydrophilic layer and a hydrophobic layer with a laser beam (JP-A-50-113307) and a method of plate making in a heat mode (JP-A-50-158405).
しかしながら、これらの方法は、いずれも種々の問題
を包含し工業的に満足すべき方法ではなかった。例え
ば、（１）及び（２）の方法は、特殊なインキや転写リ
ボンを用いなければならず、また（３）及び（４）の方
法においては親水化するための洗浄工程を必要とする上
電子写真プロセスを利用するために、現像（トナー）工
程をも必要とするので、製版コストが高くなり、また感
度も低いという欠点を有する。更に、（５）の放電破壊
を利用する方法は電極針の摩耗が著しく、工業的に有利
な製造法ということはできず、また（６）の方法は装置
が大型化し、事務用印刷には不向きである。However, none of these methods is industrially satisfactory because it involves various problems. For example, the methods (1) and (2) require the use of a special ink or transfer ribbon, and the methods (3) and (4) require a washing step for making them hydrophilic. Since a development (toner) step is required in order to use the electrophotographic process, it has drawbacks of high plate making cost and low sensitivity. Furthermore, the method of utilizing the discharge breakdown of (5) cannot be said to be an industrially advantageous manufacturing method because the electrode needles are significantly worn, and the method of (6) requires a large-sized apparatus and is not suitable for office printing. Not suitable.
ところで、最近、これら従来の平版印刷刷版の製造法
の欠点を解消する方法として、サーマルヘッド等の熱印
字装置を用いる方法が提案されている（特開昭58−1991
53号、特開昭59−174395号）。By the way, recently, a method using a thermal printing device such as a thermal head has been proposed as a method for solving the drawbacks of the conventional methods for producing a lithographic printing plate (JP-A-58-1991).
53, JP-A-59-174395).
これらの方法は、耐水性支持体上に、融点60〜180℃
かつ粒径0.1〜10μｍのワックス、ポリビニルアルコー
ルあるいはアセトアセチル化ポリビニルアルコール等の
親水性バインダー及び顔料等を含む層を設け、この面を
サーマルヘッドで熱印字することによりオフセット製版
を製造するものであり、従来のように光源や現像定着を
必要とせず簡単な装置でオフセット刷版が得られるとい
う利点を有する。These methods have a melting point of 60 to 180 ° C on a water resistant support.
Further, a layer containing a hydrophilic binder such as wax having a particle size of 0.1 to 10 μm, polyvinyl alcohol or acetoacetylated polyvinyl alcohol, and a pigment is provided, and an offset plate is manufactured by thermally printing this surface with a thermal head. However, there is an advantage that an offset printing plate can be obtained with a simple device, which does not require a light source or developing and fixing as in the conventional case.
しかしながら、かかる方法は、熱印字を行う層に、ポ
リビニルアルコールやアセトアセチル化ポリビニルアル
コール等の親水性樹脂を用いているために、熱印字層
（記録層）に充分な親油性を付与することができず、こ
のため、これらのオフセット刷版で印刷した印刷版の画
像濃度が低くなり、また、画像ムラを生じるという問題
を惹起し、鮮明な印刷画像が得られないという欠点があ
った。However, since such a method uses a hydrophilic resin such as polyvinyl alcohol or acetoacetylated polyvinyl alcohol for the layer on which thermal printing is performed, it is possible to impart sufficient lipophilicity to the thermal printing layer (recording layer). Therefore, the image density of the printing plates printed with these offset printing plates becomes low, and the problem of image unevenness is caused, and there is a drawback that a clear printed image cannot be obtained.
本発明は、画像濃度に優れると共に画像ムラのない鮮
明な印刷画像を与える平版印刷用原版を提供することを
目的とする。An object of the present invention is to provide a lithographic printing plate precursor which is excellent in image density and gives a clear printed image without image unevenness.
本発明によれば、耐水性支持体上に無機顔料、油溶性
熱可塑性樹脂及び熱溶融性物質を主成分とする感熱記録
層を設けたことを特徴とする平版印刷用原版が提供され
る。According to the present invention, there is provided a lithographic printing plate precursor comprising a water-resistant support and a heat-sensitive recording layer containing an inorganic pigment, an oil-soluble thermoplastic resin, and a heat-melting substance as main components.
本発明の平版印刷用原版は、感熱記録層として、無機
顔料、油溶性熱可塑性樹脂及び熱溶融性物質を用いたこ
とから、該感熱記録層面を熱印字すると感熱記録層面に
存在する熱溶融性物質及び油溶性熱可塑性樹脂が溶融
し、版面に優れた親油性を与える平版印刷刷版が得ら
れ、このものを用いて印刷すると、画像濃度に優れると
共に画像ムラのない鮮明な印刷画像を有する印刷物を得
ることができる。In the lithographic printing plate precursor of the invention, since the inorganic pigment, the oil-soluble thermoplastic resin and the heat-fusible substance are used as the heat-sensitive recording layer, when the heat-sensitive recording layer surface is thermally printed, the heat-melting property present on the heat-sensitive recording layer surface The substance and the oil-soluble thermoplastic resin are melted to obtain a lithographic printing plate that gives excellent oleophilicity to the plate surface. When printing is performed using this, a clear printed image with excellent image density and no image unevenness is obtained. Printed matter can be obtained.
感熱記録層に含有させる樹脂として、ポリビニルアル
コールやアセトアセチル化ポリビニルアルコール等の水
溶性樹脂を用いた場合には、親水性が強すぎ、版面に充
分な親油性を付与することができないため、本発明の目
的を達成することができない。When a water-soluble resin such as polyvinyl alcohol or acetoacetylated polyvinyl alcohol is used as the resin to be contained in the heat-sensitive recording layer, the hydrophilicity is too strong to impart sufficient lipophilicity to the plate surface. The object of the invention cannot be achieved.
つぎに、本発明を更に詳細に説明する。 Next, the present invention will be described in more detail.
本発明において使用する無機顔料としては、クレー、
シリカ、酸化亜鉛、酸化チタン、酸化アルミニウム、炭
酸カルシウム、炭酸バリウム、硫酸バリウム等が挙げら
れるが、効果の発現性あるいは使用感度の点からみて酸
化亜鉛を用いることが好ましい。As the inorganic pigment used in the present invention, clay,
Examples thereof include silica, zinc oxide, titanium oxide, aluminum oxide, calcium carbonate, barium carbonate, barium sulfate, and the like, and zinc oxide is preferably used from the viewpoint of expression of effect or use sensitivity.
本発明で用いる油溶性熱可塑性樹脂としては、環球法
による軟化点又は融点が150℃以下のものが好ましく、
このような樹脂としては、たとえば、ポリスチレン、ス
チレン−アクリル酸エステル共重合体、ポリ−ｔ−ブチ
ルスチレンのようなスチレン系樹脂、低融点ポリアミド
樹脂、ポリアクリル酸エステル、アクリル酸エステル／
アクリル酸エステル共重合体、ポリエステル樹脂、エチ
レン−酢酸ビニル共重合体、塩化ビニル−酢酸ビニル共
重合体、塩化ビニリデン樹脂、ブチラール樹脂、アセタ
ール樹脂、ポリビニルトルエン等が挙げられるが、版面
に特に優れた親油性を付与するためには、ポリスチレ
ン、スチレン／アクリル酸エステル共重合体、ポリアク
リル酸エステル、アクリル酸エステル／アクリル酸エス
テル共重合体、及び低融点ポリアミド樹脂を用いること
が好ましい。As the oil-soluble thermoplastic resin used in the present invention, those having a softening point or melting point by the ring and ball method of 150 ° C. or less are preferable,
Examples of such a resin include polystyrene, a styrene-acrylic acid ester copolymer, a styrene resin such as poly-t-butylstyrene, a low melting point polyamide resin, a polyacrylic acid ester, and an acrylic acid ester /
Acrylic ester copolymers, polyester resins, ethylene-vinyl acetate copolymers, vinyl chloride-vinyl acetate copolymers, vinylidene chloride resins, butyral resins, acetal resins, polyvinyltoluene, and the like, but particularly excellent plate surface In order to impart lipophilicity, it is preferable to use polystyrene, styrene / acrylic acid ester copolymer, polyacrylic acid ester, acrylic acid ester / acrylic acid ester copolymer, and low melting point polyamide resin.
本発明においては、前記熱可塑性樹脂は単独もしくは
２種以上併用して用いることもできる。In the present invention, the thermoplastic resins may be used alone or in combination of two or more kinds.
また、熱溶融性物質としては、50〜200℃で溶融する
ものが好ましく、このような物質としては、例えばカル
ナバワックス、カスターワックス、オーリキュリーワッ
クス、マイクロクリスタリンワックス、パラフィンワッ
クス、セレシンワックス、モンタンワックス、キャンデ
リラワックス、セラックろう、チュウハクろう、パーム
ろう、密ろう、木ろう、低分子量ポリエチレン、ステア
リン酸等の脂肪酸、ポリエチレングリクールステアレー
ト等のワックスが挙げられる。The heat-melting substance is preferably one that melts at 50 to 200 ° C., and examples of such a substance include carnauba wax, castor wax, auricury wax, microcrystalline wax, paraffin wax, ceresin wax, montan wax. , Candelilla wax, shellac wax, agar wax, palm wax, bees wax, wood wax, low molecular weight polyethylene, fatty acids such as stearic acid, and waxes such as polyethylene glycol stearate.
本発明で用いる前記無機顔料と油溶性熱可塑性樹脂の
使用割合は、重量比で0.5/1〜10/1、好ましくは1/1〜5/
1が適当である。The use ratio of the inorganic pigment and the oil-soluble thermoplastic resin used in the present invention is 0.5 / 1 to 10/1 by weight, preferably 1/1 to 5 /.
1 is appropriate.
この使用割合が0.5/1未満であると親水性が不足し印
刷物の地肌部が汚れ易く、また10/1を越えると熱印字し
た場合の版面の親油性が充分でなく、画像濃度の低下や
画像ムラを生じるので好ましくない。If this usage ratio is less than 0.5 / 1, the hydrophilicity is insufficient and the background part of the printed matter is easily soiled.If it exceeds 10/1, the lipophilicity of the plate surface when heat-printed is not sufficient, and the image density decreases and This is not preferable because it causes image unevenness.
また、本発明で用いる熱溶融性物質の添加量は、無機
顔料と油溶性熱可塑性樹脂の合計量に対し0.1〜20重量
％である。添加量が0.1重量％未満であると、印刷画像
の濃度が充分でなく、また20重量％を越えると印刷物に
汚れが生じるので好ましくない。Further, the addition amount of the heat-fusible substance used in the present invention is 0.1 to 20% by weight based on the total amount of the inorganic pigment and the oil-soluble thermoplastic resin. If the addition amount is less than 0.1% by weight, the density of the printed image will be insufficient, and if it exceeds 20% by weight, the printed matter will be stained, which is not preferable.
本発明で用いる耐水性支持体としては、例えばメラミ
ン−ホルムアルデヒド樹脂、尿素−ホルムアルデヒド樹
脂等で湿潤強化された紙、ポリエチレンテレフタレート
のような合成樹脂フィルム及びアルミニウム等で蒸着さ
れた金属蒸着紙等が挙げられる。Examples of the water-resistant support used in the present invention include melamine-formaldehyde resin, paper wet-strengthened with urea-formaldehyde resin and the like, synthetic resin film such as polyethylene terephthalate and metallized paper vapor-deposited with aluminum and the like. To be
また、本発明において、前記必須成分に加え、必要に
応じ塗工液の分散助剤を添加することも可能である。こ
のような分散助剤としては、例えばナフテン酸金属塩、
脂肪酸及びその金属塩、カチオン界面活性剤、ノニオン
界面活性剤、アニオン界面活性剤等を挙げることがで
き、その添加量は塗工液の固形分に対し通常10重量％以
下とするのがよい。Further, in the present invention, in addition to the above-mentioned essential components, it is possible to add a dispersion aid for the coating liquid, if necessary. As such a dispersion aid, for example, naphthenic acid metal salt,
Fatty acids and metal salts thereof, cationic surfactants, nonionic surfactants, anionic surfactants and the like can be mentioned, and the addition amount thereof is usually 10% by weight or less based on the solid content of the coating liquid.
本発明の平版印刷用原版は、以下に示すような方法で
製造することができるが、これらの方法に限定されるも
のではない。The lithographic printing plate precursor according to the invention can be produced by the following methods, but is not limited to these methods.
まず、無機顔料、油溶性熱可塑性樹脂及び熱溶融性物
質、更に必要に応じ前記した分散助剤を含む混合物を、
ボールミル、アトライター、ホモミキサー、グレンミル
あるいはサンドミル等の分散機により分散混合し、得ら
れた分散液を耐水性支持体上にワイヤーバー、ロールコ
ーター等の従来公知の塗布機により塗布し、ついで乾燥
すればよい。First, a mixture containing an inorganic pigment, an oil-soluble thermoplastic resin and a heat-melting substance, and optionally the above-mentioned dispersion aid,
Disperse and mix with a dispersing machine such as a ball mill, attritor, homomixer, Glen mill or sand mill, and apply the resulting dispersion on a water-resistant support with a conventionally known coating machine such as a wire bar or roll coater, and then dry. do it.
このようにして得られた平版印刷原版を、感熱プリン
ターあるいは感熱ファクシミリ等の熱印字装置により熱
印字すると熱印字した部分は熱溶融性物質及び油溶性熱
可塑性樹脂が溶融するため、版面で優れた親油性を帯び
ることとなり、インキ受容性となる。一方、非印字部
（非画像部）は画像形成後不感脂化処理すればよい。When the lithographic printing plate precursor thus obtained is subjected to thermal printing by a thermal printing device such as a thermal printer or a thermal facsimile, the heat-printed portion is melted by the heat-melting substance and the oil-soluble thermoplastic resin, so that the plate surface is excellent. It becomes lipophilic and becomes ink receptive. On the other hand, the non-printing portion (non-image portion) may be subjected to desensitizing treatment after image formation.
本発明は前記構成からなり、平版印刷用原版の感熱記
録層として、無機顔料、油溶性熱可塑性樹脂及び熱溶融
性物質を用いたことから、この感熱記録層面を熱印字す
ると、この部分に存在する熱溶融性物質及び熱可塑性樹
脂が溶融し、版面に優れた親油性を与えるために、この
平版印刷刷版を用いて印刷した場合、画像濃度に優れる
と共に画像ムラのない鮮明な印刷画像を有する印刷物を
得ることができる。The present invention has the above-mentioned constitution, and since an inorganic pigment, an oil-soluble thermoplastic resin, and a heat-fusible substance are used as the heat-sensitive recording layer of the lithographic printing plate precursor, when the heat-sensitive recording layer surface is heat-printed, it is present in this portion. When the lithographic printing plate is printed using a lithographic printing plate, the heat-fusible substance and the thermoplastic resin are melted to give excellent oleophilicity, and a clear printed image with no image unevenness is obtained. The printed matter can be obtained.
以下、実施例により本発明を更に詳細に説明する。以
下に示す部はいずれも重量基準である。Hereinafter, the present invention will be described in more detail with reference to Examples. All parts shown below are based on weight.
実施例１ 酸化亜鉛 30部 ダイヤナールLR689 （三菱レーヨン社製アクリル樹脂） 20部 トルエン 30部 上記の混合液をホモジナイザーで10分間分散後、ステ
アリン酸４部（トルエン/IPA混合溶媒の10％溶液）を加
え均一になるように撹拌する。得られた塗工液を湿潤強
化された坪量120g/m2の上質紙の片面に乾燥後の重量が1
0g/m2になるように塗布し、塗布面をキャレンダー処理
して平版印刷原版を得た。次に感熱ファクシミリにより
上記平版印刷原版を熱印字し平版印刷刷版を得た。この
ものを通常のエッチング処理によりエッチング後、
（株）リコー製オフセット印刷機AP1700にかけ印刷を行
なったところ1000枚以上の地汚れのない鮮明な印刷物が
得られた。Example 1 Zinc oxide 30 parts Dianal LR689 (acrylic resin manufactured by Mitsubishi Rayon Co., Ltd.) 20 parts Toluene 30 parts After dispersing the above mixed solution for 10 minutes with a homogenizer, 4 parts of stearic acid (10% solution of toluene / IPA mixed solvent) Add and stir to homogenize. The weight of the obtained coating liquid after drying was 1 on one side of a high-quality paper with a basis weight of 120 g / m 2 that was wet-strengthened.
The coating was carried out so as to be 0 g / m 2 , and the coated surface was subjected to a calendering treatment to obtain a lithographic printing original plate. Next, the lithographic printing plate precursor was heat-printed by a heat-sensitive facsimile to obtain a lithographic printing plate. After etching this with a normal etching process,
Printing was performed using an offset printing machine AP1700 manufactured by Ricoh Co., Ltd., and more than 1000 sheets of clear printed matter without scumming were obtained.
実施例２ 実施例１のアクリル樹脂に代えてスチレン樹脂を用い
分散助剤としてナフテン酸ニッケルを添加した以下の処
方液をホモジナイザーで10分間分散した。Example 2 The following formulation liquid, in which styrene resin was used in place of the acrylic resin of Example 1 and nickel naphthenate was added as a dispersion aid, was dispersed for 10 minutes with a homogenizer.
酸化亜鉛 40部 スチレン樹脂（固形分50％、融点75℃） 40部 ナフテン酸ニッケル １部 トルエン １部 得られた分散液にカルナバワツクスの20％トルエン溶
液を９部添加したボールミルで12時間分散を行ない感熱
記録層用塗工液を得た。得られた塗工液を実施例１と同
様に耐水性支持体上に塗布乾燥し、塗布面をキャレンダ
ー処理して平版印刷刷版を得た。Zinc oxide 40 parts Styrene resin (solid content 50%, melting point 75 ° C.) 40 parts Nickel naphthenate 1 part Toluene 1 part Disperse the resulting dispersion in 9 parts of 20% carnauba wax 20% toluene solution and disperse in a ball mill for 12 hours. The coating liquid for the heat-sensitive recording layer was obtained. The obtained coating liquid was applied and dried on a water-resistant support in the same manner as in Example 1, and the applied surface was calendered to obtain a lithographic printing plate.
次に実施例１と同様な方法で熱印字し印刷を行なった
ところ1500枚以上の地汚れのない鮮明な印刷物を得た。Then, thermal printing was carried out in the same manner as in Example 1 to perform printing, and 1500 or more clear printed matters having no background stain were obtained.
実施例３ 実施例１の酸化亜鉛の代わりにシリカ（サイロイド24
4 富士デヴィソン化学）を用い、油溶性熱可塑性樹脂と
してポリアミド樹脂（ポリマイドＳ−40E 三洋化成 融
点110℃）を用いた以外は実施例１と同様な方法により
熱印字、印刷を行ない、500枚以上の地汚れのない鮮明
な印刷物を得た。Example 3 Instead of the zinc oxide of Example 1, silica (Cyloid 24
4 Fuji Devison Chemical Co., Ltd. and a polyamide resin (Polymide S-40E Sanyo Chemical Co., Ltd. melting point 110 ° C.) as an oil-soluble thermoplastic resin were used. A clear print with no background stain was obtained.
実施例４〜７ 実施例２のカルナバワックスの代りに以下に示すワッ
クスを使用し、その他は実施例２と同様にして印刷版を
作成し、熱印字製版後、印刷を行なった。結果を表−１
に示す。Examples 4 to 7 The following wax was used in place of the carnauba wax of Example 2, and other printings were made in the same manner as in Example 2, and printing was performed after thermal printing plate making. The results are shown in Table-1
Shown in
比較例１ 実施例２のカルナバワックスを除いた以外は実施例２
と同様にして印刷版を作成し熱印字、印刷を行った。結
果を表−１に示す。Comparative Example 1 Example 2 except that the carnauba wax of Example 2 was omitted
A printing plate was prepared in the same manner as described above, and was subjected to thermal printing and printing. The results are shown in Table 1.
比較例２ 結着剤としてポリビニルアルコール（10％水溶液）を
用い、顔料として酸化亜鉛をポリビニルアルコールを重
量比で1/1になるようにした水分散系に、カルナバワッ
クスを固形分比５％で添加しボールミルで12時間分散を
行ない、感熱記録層を得た。次に実施例１と同様に平版
印刷原版を作成後、熱印字し、このもので印刷を行なっ
た。結果を表−１に示す。Comparative Example 2 Polyvinyl alcohol (10% aqueous solution) was used as a binder, and zinc oxide was used as a pigment in an aqueous dispersion system in which the weight ratio of polyvinyl alcohol was 1/1, and carnauba wax was added at a solid content ratio of 5%. The mixture was added and dispersed by a ball mill for 12 hours to obtain a heat-sensitive recording layer. Next, a lithographic printing original plate was prepared in the same manner as in Example 1, then heat printing was carried out, and printing was performed using this. The results are shown in Table 1.
実施例８〜11 実施例２におけるカルナバワックスの20％トルエン溶
液に代えてカスターワックスの20％トルエン溶液をそれ
ぞれ、0.15部、1.5部、15部、75部を使用しその他は実
施例２と同様にして実施例８、９、10及び11の平版印刷
原版を得た。この平版印刷原版を用いて実施例１と同様
な方法で熱印字し、印刷を行った結果を表−２に示す。 Examples 8 to 11 In place of the 20% toluene solution of carnauba wax in Example 2, 0.15 parts, 1.5 parts, 15 parts and 75 parts of 20% toluene solution of castor wax were used, respectively, and otherwise the same as in Example 2. Thus, lithographic printing original plates of Examples 8, 9, 10 and 11 were obtained. Using this lithographic printing plate precursor, thermal printing was carried out in the same manner as in Example 1 and printing was performed. The results are shown in Table 2.
Claims (3)
性樹脂及び熱溶融性物質を主成分とする感熱記録層を設
けたことを特徴とする平版印刷用原版。1. A lithographic printing plate precursor comprising a water-resistant support and a heat-sensitive recording layer containing an inorganic pigment, an oil-soluble thermoplastic resin and a heat-fusible substance as main components.
アクリル酸エステル共重合体、ポリアクリル酸エステ
ル、アクリル酸エステル共重合体及び低融点ポリアミド
樹脂から選ばれる少なくとも１種である特許請求の範囲
第１項記載の平版印刷用原版。2. The thermoplastic material is polystyrene, styrene /
The lithographic printing plate precursor as claimed in claim 1, which is at least one selected from an acrylic acid ester copolymer, a polyacrylic acid ester, an acrylic acid ester copolymer and a low melting point polyamide resin.
る物質である特許請求の範囲第１項記載の平版印刷用原
版。3. The lithographic printing plate precursor as claimed in claim 1, wherein the heat-melting substance is a substance which melts at a temperature of 50 to 200 ° C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61209326A JPH082701B2 (en) | 1986-09-04 | 1986-09-04 | Original plate for lithographic printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61209326A JPH082701B2 (en) | 1986-09-04 | 1986-09-04 | Original plate for lithographic printing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6364747A JPS6364747A (en) | 1988-03-23 |
| JPH082701B2 true JPH082701B2 (en) | 1996-01-17 |
Family
ID=16571091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61209326A Expired - Lifetime JPH082701B2 (en) | 1986-09-04 | 1986-09-04 | Original plate for lithographic printing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH082701B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9110418D0 (en) * | 1991-05-14 | 1991-07-03 | Du Pont Howson Ltd | Radiation-sensitive material |
| US5417164A (en) * | 1991-07-24 | 1995-05-23 | Nippon Shokubai Co., Ltd. | Thermosensitive recording material and thermosensitive recording method |
| EP0646476B1 (en) * | 1993-04-20 | 1998-06-24 | Asahi Kasei Kogyo Kabushiki Kaisha | Lithographic printing original plate and method for producing the same |
| BR9714845A (en) | 1996-12-26 | 2000-10-17 | Asahi Chemical Ind | "litho-printing plate, process for producing it, original, litho-printing plate, heat sensitive, process for producing litho-printing plate, and, litho-printing material, heat sensitive". |
| BR0009710A (en) | 1999-04-15 | 2002-01-08 | Asahi Chemical Ind | Plate material, heat sensitive type, for use in making lithography, and process for preparing it, liquid heat sensitive material, for use in making lithography, and lithography |
| JP4825854B2 (en) | 2007-12-14 | 2011-11-30 | 三菱製紙株式会社 | Thermal lithographic printing plate |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58199153A (en) * | 1982-05-17 | 1983-11-19 | Mitsubishi Paper Mills Ltd | Preparation of offset press plate |
-
1986
- 1986-09-04 JP JP61209326A patent/JPH082701B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6364747A (en) | 1988-03-23 |
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