JPH07295237A - Developing method of photosensitive planographic printing plate and automatic developing machine used therein - Google Patents

Developing method of photosensitive planographic printing plate and automatic developing machine used therein

Info

Publication number
JPH07295237A
JPH07295237A JP8968694A JP8968694A JPH07295237A JP H07295237 A JPH07295237 A JP H07295237A JP 8968694 A JP8968694 A JP 8968694A JP 8968694 A JP8968694 A JP 8968694A JP H07295237 A JPH07295237 A JP H07295237A
Authority
JP
Japan
Prior art keywords
printing plate
developer
lithographic printing
developing
photosensitive lithographic
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
Application number
JP8968694A
Other languages
Japanese (ja)
Inventor
Akio Kasakura
暁夫 笠倉
Kenji Kaneda
健志 金田
Hideyuki Nakai
英之 中井
Takayuki Sugaiwa
隆之 菅岩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Chemical Corp
Konica Minolta Inc
Original Assignee
Mitsubishi Chemical Corp
Konica Minolta Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Chemical Corp, Konica Minolta Inc filed Critical Mitsubishi Chemical Corp
Priority to JP8968694A priority Critical patent/JPH07295237A/en
Publication of JPH07295237A publication Critical patent/JPH07295237A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To execute stable development with decreased troubles of a transportation system with a prolonged life of a developer by inserting printing plates directly into the developer from the lateral side of a developing tank, linearly transporting these printing plates and retreating the printing plate from the lateral side. CONSTITUTION:Only the air inflow and outflow port 3 is held open and the other ports are held closed and the developer is supplied from a developer supply port 2 into a developing machine 1. A sensor operates to open a shutter 5 when the front ends of the printing plates approach an insertion port 4 after the developer is heated to a prescribed temp. The printing plates are then developed while moving in the developing machine 1 and emerges out of an outlet 4'. The liquid level of the developer is lowered by carry over of the developer by the printing plates when the number of the processed sheets increases. The development is stopped and replenishment of the liquid is executed when the liquid level approaches the transportation plane. Namely, the printing plates are inserted from below the liquid level of the developer and are developed while the printing plates are moved horizontally. The printing plates are horizontally moved as they are until the plates are discharged. Then, the fatigue of the developer by air and the evaporation of the moisture are lessened and the development is executed without bending the printing plates.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は画像露光された感光性平
版印刷版を多数枚現像する感光性平版印刷版の現像方法
及びそれに用いる自動現像機に関する。更に詳しくは、
液交換の頻度が少ない感光性平版印刷版の現像方法及び
それに用いる自動現像機に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for developing a photosensitive lithographic printing plate which develops a large number of image-exposed photosensitive lithographic printing plates and an automatic developing machine used therefor. For more details,
The present invention relates to a method for developing a photosensitive lithographic printing plate that requires less liquid exchange and an automatic processor used therefor.

【0002】[0002]

【従来の技術】感光性平版印刷版を多数枚現像する従来
の感光性平版印刷版用自動現像機は、現像するに従い、
現像液中に感光性平版印刷版より溶出した成分が次第に
蓄積して現像液が疲労するため、また、空気による疲労
や、現像液からの水分の蒸発等もあり、充分な現像がで
きなくなる。このため、現像液や補充液を補充するか、
現像液の交換が必要となる。しかし、これら補充量や交
換頻度を増加させると廃液量が増加する問題と共に操作
が煩雑となる問題があった。また、逆に補充量や交換頻
度を少なくすると、現像性の問題と共に、感光性平版印
刷版より溶出した成分が現像液に溶存しえなくなり、ス
ラッジ化し、配管等の目詰まりの原因となる。
2. Description of the Related Art A conventional automatic developing machine for photosensitive lithographic printing plates, which develops a large number of photosensitive lithographic printing plates,
Ingredients eluted from the photosensitive lithographic printing plate gradually accumulate in the developing solution and the developing solution becomes fatigued. In addition, fatigue due to air, evaporation of water from the developing solution and the like cause insufficient development. For this reason, either replenish the developer or replenisher,
The developer needs to be replaced. However, when the replenishment amount and the replacement frequency are increased, there is a problem that the amount of waste liquid increases and the operation becomes complicated. On the other hand, if the replenishment amount or the replacement frequency is reduced, the developability problem will occur, and the components eluted from the photosensitive lithographic printing plate will not be dissolved in the developer and will become sludge, which will cause clogging of piping and the like.

【0003】従来これらの対策として、現像槽に蓋を設
けて、現像液の蒸発や空気との接触を減少させる方法
や、特開平1−310354号公報に記載の感光性平版
印刷版を下方に向け挿入し、現像液中に浸漬する方法
(以下ディップ現像槽)等がある。更には特開平1−3
10355号公報に記載のディップ現像槽の現像液の液
面に浮き蓋を設けたものや、特開昭63−177140
号公報に記載のように現像液中の溶存気体を除去する装
置等が提案されている。
As a conventional measure against these problems, a method of providing a lid on the developing tank to reduce evaporation of the developing solution and contact with air, and the photosensitive lithographic printing plate described in JP-A No. 1-310354 downward There is a method (hereinafter referred to as a dip developing tank) in which the film is inserted face-to-face and immersed in a developer. Furthermore, JP-A 1-3
JP-A-63-177140, in which a floating lid is provided on the surface of the developer in the dip developing tank described in Japanese Patent No. 10355.
As described in Japanese Patent Laid-Open Publication No. 2003-242, there has been proposed an apparatus for removing dissolved gas in a developing solution.

【0004】しかし、これらの方法では感光性平版印刷
版を上方より、下方の現像液中に浸漬し、その後また上
方に向けなおし、液中から引き上げる必要があるため、
感光性平版印刷版に無用な曲率が生じる。このため、搬
送系のローラーが数多く必要となり、ローラーの配置の
ため、装置が複雑となる問題があった。また、複雑な構
成のため、搬送系にトラブルを生じる可能性が高くな
り、そのため、感光性平版印刷版に傷を生じる可能性が
高く、メンテナンスに多大な労力を必要としていた。
However, in these methods, it is necessary to immerse the photosensitive lithographic printing plate from above into the developing solution below, and then turn it up again and pull it out of the solution.
Useless curvature occurs in the photosensitive lithographic printing plate. For this reason, a large number of rollers for the transport system are required, and the arrangement of the rollers complicates the apparatus. Further, due to the complicated structure, there is a high possibility that a trouble will occur in the transport system, and therefore, there is a high possibility that the photosensitive lithographic printing plate will be scratched, and a great deal of labor is required for maintenance.

【0005】現像液をシャワー方式で感光性平版印刷版
に接触させる方式では感光性平版印刷版の搬送を直線的
に行う構成とするため、搬送系の問題はないが、前述の
空気による現像液の疲労の問題が大きく、現像液、補充
液を頻繁に補充する必要が生じる。
In the method of bringing the developing solution into contact with the photosensitive lithographic printing plate by the shower method, since the photosensitive lithographic printing plate is conveyed linearly, there is no problem in the conveying system, but the above-mentioned developer by air is used. The problem of fatigue is large, and it becomes necessary to frequently replenish the developing solution and the replenishing solution.

【0006】[0006]

【発明が解決しようとする課題】本発明の目的は、上記
のような問題を解決した感光性平版印刷版の現像方法及
びそれに用いる自動現像機を提供することである。即
ち、搬送系のトラブルが少なく、現像液の寿命が長く、
安定な現像ができるとともに、廃液量を減少させた感光
性平版印刷版の現像方法及びそれに用いる自動現像機を
提供することである。
SUMMARY OF THE INVENTION An object of the present invention is to provide a method for developing a photosensitive lithographic printing plate which solves the above problems and an automatic developing machine used therefor. That is, there are few troubles in the transport system, the life of the developer is long,
It is an object of the present invention to provide a method for developing a photosensitive lithographic printing plate which enables stable development and reduces the amount of waste liquid, and an automatic developing machine used therefor.

【0007】[0007]

【課題を解決するための手段】本発明者らは上記目的の
ため鋭意検討の結果、ディップ現像槽の現像液の液面以
下から感光性平版印刷版を挿入し、水平移動させながら
現像処理を行いそのまま、水平移動させて感光性平版印
刷版を排出させることが可能なことを見出し本発明に到
達した。
As a result of intensive studies for the above purpose, the present inventors have found that the photosensitive lithographic printing plate is inserted from below the liquid level of the developing solution in the dip developing tank and is developed while being horizontally moved. The inventors have found that it is possible to horizontally move the photosensitive lithographic printing plate as it is, and discharge the photosensitive lithographic printing plate.

【0008】即ち、本発明は、露光後の感光性平版印刷
版を現像槽内において曲率を持たせずに搬送し、ディッ
プ方式で現像することを特徴とする感光性平版印刷版の
現像方法及びディップ方式で現像する感光性平版印刷版
用自動現像機において、感光性平版印刷版の挿入口、出
口及び現像槽内の感光性平版印刷版の搬送ラインが直線
的に構成されていることを特徴とする感光性平版印刷版
用自動現像機に存する。
That is, the present invention relates to a method for developing a photosensitive lithographic printing plate, which is characterized in that the exposed photosensitive lithographic printing plate is conveyed in a developing tank without curvature and is developed by a dip method. In an automatic developing machine for photosensitive lithographic printing plates that develops by the dip method, the photosensitive lithographic printing plate insertion port, the outlet, and the transport line of the photosensitive lithographic printing plate in the developing tank are linearly configured. Exists in the automatic developing machine for the photosensitive lithographic printing plate.

【0009】以下、本発明につき、詳細に説明する。本
発明に使用される感光性平版印刷版用自動現像機は画像
露光されたポジ型感光性平版印刷版やネガ型感光性平版
印刷版等を多数枚連続的に現像処理するのに最適な装置
である。処理する感光性平版印刷版は種々のものであり
得るが、例えば、アルカリ水現像性の感光性平版印刷版
等が挙げられる。
The present invention will be described in detail below. The automatic developing machine for the photosensitive lithographic printing plate used in the present invention is an apparatus suitable for continuously developing a large number of image-exposed positive-working photosensitive lithographic printing plates and negative-working photosensitive lithographic printing plates. Is. The photosensitive lithographic printing plate to be treated may be various ones, and examples thereof include an alkaline water developable photosensitive lithographic printing plate.

【0010】本発明に使用される現像槽は、ディップ現
像槽の現像液の液面以下から感光性平版印刷版を挿入
し、水平移動させながら現像処理を行いそのまま、水平
移動させて感光性平版印刷版を排出させる構成であれ
ば、広く各種のディップ現像方式の現像槽が採用でき
る。感光性平版印刷版の挿入、排出口は感光性平版印刷
版が最低限通過できる開口部を有する構成とすることが
重要である。また、連続的な運転を考えた場合には感光
性平版印刷版の現像処理後に使用済現像液の排出、新現
像液の供給のための配管が必要であるが、これらは感光
性平版印刷版の挿入、排出時には気密に封鎖できる構成
とすべきである。現像液の液交換は適宜行う構成とする
ことも可能だが、操作を容易にするために、感光性平版
印刷版の処理枚数に応じた制御方式または液濃度を検出
して制御する方式等が好ましい。
In the developing tank used in the present invention, the photosensitive lithographic printing plate is inserted from below the liquid level of the developer in the dip developing tank, and the developing treatment is carried out while moving horizontally, and the photosensitive lithographic plate is moved horizontally as it is. As long as the printing plate is ejected, a wide variety of dip development type developing tanks can be adopted. It is important that the photosensitive lithographic printing plate has an opening and an opening through which the photosensitive lithographic printing plate can pass, at the minimum for insertion and discharge. In addition, when considering continuous operation, it is necessary to provide a pipe for discharging the used developer and supplying a new developer after developing the photosensitive lithographic printing plate. It should be constructed so that it can be hermetically sealed when inserting and discharging. Although the liquid exchange of the developing solution can be appropriately performed, a control method according to the number of processed photosensitive lithographic printing plates or a method of detecting and controlling the liquid concentration is preferable in order to facilitate the operation. .

【0011】本発明に使用される感光性平版印刷版用自
動現像機の他の構成は特に限定なく、従来からの感光性
平版印刷版用自動現像機の構成を適宜選択することがで
きる。主な構成としては、現像液貯蔵槽と使用済現像液
貯蔵槽、更には水洗装置、ガム引き装置等が挙げられ
る。更には使用済現像液を再生処理する装置を併用する
ことにより現像液を長期に安定的に使用でき、また廃液
が少なくなるメリットがある。
The other constitution of the automatic developing machine for the photosensitive lithographic printing plate used in the present invention is not particularly limited, and the constitution of the conventional automatic developing machine for the photosensitive lithographic printing plate can be appropriately selected. Main components include a developer storage tank, a used developer storage tank, a water washing device, a gumming device, and the like. Furthermore, the combined use of an apparatus for recycling the used developing solution has the advantages that the developing solution can be used stably for a long period of time and that the amount of waste liquid is reduced.

【0012】以下、図面により本発明を更に詳細に説明
する。図1は、本発明の概念を現像装置の断面の概略で
示したものである。図1において1は現像槽、2は現像
液の供給口、3は空気の流出入口、4は現像すべき印刷
版の挿入口であるスリット、4′は現像された印刷版の
出口であるスリット、5及び5′はそれぞれスリット4
及び4′を開閉するシャッター、6は現像液の排出口を
表わす。
The present invention will now be described in more detail with reference to the drawings. FIG. 1 shows the concept of the present invention in a schematic sectional view of a developing device. In FIG. 1, 1 is a developing tank, 2 is a developing solution supply port, 3 is an air outflow port, 4 is a slit which is an insertion port of a printing plate to be developed, and 4'is a slit which is an outlet of a developed printing plate. 5 and 5'are slits 4 respectively
Shutters for opening and closing 4'and 4 ', and 6 for a developer discharge port.

【0013】感光性平版印刷版は図1の装置に入るまで
はローラー等により搬送され、搬送面は図中の点線で示
した高さにあり、装置内にガイドレールまたはローラー
等を配置してもよい。この槽は基本的には完全に密閉す
ることができるように構成されている。感光性平版印刷
版を現像するとき以外は挿入口4も出口4′も、例えば
電磁気的に駆動されるシャッター、具体的には例えばソ
レノイドとアームで連結されたシャッター5,5′があ
り、これにより閉じた状態にしておく。
The photosensitive lithographic printing plate is conveyed by rollers or the like until it enters the apparatus shown in FIG. 1. The conveying surface is at a height shown by a dotted line in the figure, and guide rails or rollers are arranged in the apparatus. Good. This tank is basically constructed so that it can be completely sealed. Except when developing the photosensitive lithographic printing plate, both the insertion port 4 and the outlet 4'have, for example, electromagnetically driven shutters, specifically shutters 5, 5'connected by a solenoid and an arm. Keep it closed by clicking.

【0014】感光性平版印刷版を現像するにあたり、ま
ず初めに現像液を装置内にポンプにより現像液供給口2
から供給する。このときシャッター5,5′とも閉じて
おき、また排出口6も閉じておく。すべて密閉にしてし
まうと液を注入できないので空気の流出入口3だけ開状
態にしておく。この状態で液面レベルセンサー等で現像
液が検知されるまで現像液を供給する。予じめ設定した
液面で現像液が検知され現像液の供給が停止したら、空
気の流出入口3を閉じる。そうするとシャッター5,
5′を開状態にしても空気圧の作用により現像液は挿入
口や出口から漏れなくなる。
In developing the photosensitive lithographic printing plate, first, the developing solution is pumped into the apparatus by the developing solution supply port 2
Supplied from At this time, the shutters 5 and 5'are closed, and the discharge port 6 is also closed. Since the liquid cannot be injected if all are closed, only the air outflow port 3 is left open. In this state, the developer is supplied until the developer is detected by the liquid level sensor or the like. When the developer is detected on the previously set liquid level and the supply of the developer is stopped, the air inlet / outlet 3 is closed. Then the shutter 5,
Even if 5'is opened, the developer does not leak from the insertion port or the outlet due to the action of air pressure.

【0015】次に現像液を所定の温度にするためにシリ
コーンラバーヒーター等のヒーターで加熱する。ヒータ
ーは槽中にあってもかまわない。温度制御は例えば温度
センサでの検出値をヒーター制御装置にフィードバック
し制御すれば良い。温度が所定値に達したら感光性平版
印刷版をいつでも現像できる状態となる。感光性平版印
刷版の先端が挿入口に近づくと近接センサまたは光電ス
イッチが作動しソレノイド等の駆動回路を作動させシャ
ッター5を開ける。また同時に機械的脱膜装置も作動さ
せる。機械的脱膜装置としては超音波振動装置を用いて
も良く、又、現像槽内に密閉できるようにシールされた
軸を用いたブラシ等を用いることも可能である。感光性
平版印刷版は所定時間かけ現像槽内を移動して現像され
る。現像された印刷版は出口4′から退出させるがこの
出口には更に感光性平版印刷版による現像液の持ち出し
量を制御するスリットまたはスキージを設けるのが好ま
しい。
Next, the developer is heated by a heater such as a silicone rubber heater to bring it to a predetermined temperature. The heater may be in the bath. For temperature control, for example, the detected value of the temperature sensor may be fed back to the heater control device for control. When the temperature reaches a predetermined value, the photosensitive lithographic printing plate is ready for development. When the tip of the photosensitive lithographic printing plate approaches the insertion port, the proximity sensor or photoelectric switch is activated to activate a drive circuit such as a solenoid to open the shutter 5. At the same time, the mechanical film removal device is activated. An ultrasonic vibrating device may be used as the mechanical film removing device, or a brush using a shaft sealed so as to be hermetically sealed in the developing tank may be used. The photosensitive lithographic printing plate is developed by moving in a developing tank for a predetermined time. The developed printing plate is made to exit from the outlet 4 ', but it is preferable to further provide a slit or a squeegee at this outlet for controlling the carry-out amount of the developing solution by the photosensitive lithographic printing plate.

【0016】処理枚数が多くなってくると、感光性平版
印刷版による持ち出しにより現像液の液面レベルが低下
してくる。現像液面が搬送面に近づき、感光性平版印刷
版が現像されない状態になる前に、予じめ設定した液面
で第2のレベルセンサー等により現像を停止し、現像液
又は補充液の供給を開始する。現像液又は補充液の供給
方法は装置の立ち上げ時と同様な方法で行われる。
As the number of processed sheets increases, the liquid level of the developing solution decreases due to taking out with the photosensitive lithographic printing plate. Before the photosensitive lithographic printing plate becomes undeveloped due to the developer surface approaching the transport surface, the development is stopped by the second level sensor etc. at the preset liquid surface, and the developer or replenisher is supplied. To start. The method for supplying the developing solution or the replenishing solution is the same as the method for starting the apparatus.

【0017】尚、センサーからの情報はインターフェイ
スを介しマイクロコンピュータに入力し、それらの信号
に基づいて情報処理を行い、その結果、駆動すべき素子
への出力もインターフェイスを介して行うのが好まし
い。各バルブ、ソレノイド等は電気的にはインターフェ
イスと絶縁されている方が好ましく、具体的にはインタ
ーフェイスからの出力信号をリレーまたはソリッドステ
ートリレーを介して駆動させるのが好ましい。
It is preferable that the information from the sensor is input to the microcomputer through the interface, information processing is performed based on those signals, and as a result, output to the element to be driven is also performed through the interface. Each valve, solenoid, etc. is preferably electrically insulated from the interface, and specifically, it is preferable to drive the output signal from the interface via a relay or a solid state relay.

【0018】以上のような作用により、現像液の空気に
よる疲労や現像液からの水分の蒸発等が極力少なくかつ
感光性平版印刷版を曲げることなしに現像できる。本発
明において、現像液の供給または排出時以外は実質的に
気密に密閉できる構造とは、上述した様に現像液又は補
充液の供給口2、空気の流出入口3、及び現像液の排出
口6を全て閉鎖し、シャッター5及び5′を開けた時に
スリット4又は4′から現像液が実質的に流出しない状
態を実現できれば良い。その為にスリット4及び4′の
間隔は、印刷版の入出に不自由がない範囲で極力小さく
設定することが望ましい。又、図1では、スリット4,
4′を開閉するシャッター5,5′は現像槽外にある例
を示したが、場合により現像槽の内側に設けても良く、
更にはスリットの上下少なくとも一方を可動式にしてシ
ャッターを兼ねる形にすることも可能である。
Due to the above-mentioned actions, fatigue of the developing solution due to air and evaporation of water from the developing solution are minimized, and development can be performed without bending the photosensitive lithographic printing plate. In the present invention, the structure that can be hermetically sealed except when the developer is supplied or discharged means that the developer or replenisher supply port 2, the air outflow port 3 and the developer discharge port are as described above. It is only necessary to realize a state in which the developer does not substantially flow out from the slit 4 or 4'when all 6 are closed and the shutters 5 and 5'are opened. Therefore, it is desirable to set the distance between the slits 4 and 4'to be as small as possible within a range where there is no inconvenience in entering and exiting the printing plate. Further, in FIG. 1, the slits 4,
Although the shutters 5 and 5'for opening and closing 4'are shown outside the developing tank, in some cases they may be provided inside the developing tank.
Further, it is possible to make at least one of the upper and lower sides of the slit movable so that the slit also serves as a shutter.

【0019】本発明は現像槽内での感光性平版印刷版の
搬送を直線的に行うことを特徴とするが、その本質は従
来の様に印刷版を現像槽の上方の空中から現像液に浸
し、再び現像槽上方の空中へ取出すのではなく、印刷版
を現像槽の側方から直接現像液中に挿入し、かつ同様に
退出させる点にある。従って、この側方入退出を行いつ
つ、他の何らかの理由で現像槽内の搬送路を若干屈曲さ
せる態様も本発明の範囲内と理解されるべきである。
The present invention is characterized in that the photosensitive lithographic printing plate is conveyed linearly in the developing tank. The essence is that the printing plate is transferred from the air above the developing tank to the developing solution as in the conventional case. Instead of immersing and taking out again into the air above the developing tank, the printing plate is directly inserted into the developing solution from the side of the developing tank and similarly withdrawn. Therefore, it should be understood that a mode in which the conveyance path in the developing tank is slightly bent for some other reason while performing the side entrance / exit is within the scope of the present invention.

【0020】以下実施例により詳細に説明する。A detailed description will be given below with reference to examples.

【0021】[0021]

【実施例】(装置の説明) 図2に本発明の一例として本実施例に関する感光性平版
印刷版用自動現像機を示した。図中、1〜6は図1と同
様の構成要素を示し、又図中、点線で示した線が搬送面
であり、感光性平版印刷版はそれに示した矢印の向きに
進む。前述した印刷版の挿入口4の手前には、一対の挿
入ローラ101が配置され、またさらに挿入ローラ10
1の手前には光電スイッチ102が搬送面に接しないよ
うに配されている。前記光電スイッチ102は感光性平
版印刷版が挿入口4に近づくと検知できるセンサであれ
ばいかなるものでもかまわない。印刷版の出口4′の後
ろには一対のスキージも兼ねた排出ローラ103が配置
されている。排出ローラ103の後部にはリンスまたは
水洗のためのゾーン104が配され、さらにそのゾーン
の後部にはガム引きのためのゾーン105が配置されて
いる。リンスまたは水洗のためのゾーン104には一対
の挿入ローラと一対の排出ローラがあり、これらローラ
の下方には図示されているように水洗水またはリンス液
をためる槽があり、ここにある液はフィルター(F)と
ポンプ(P)を介し搬送面のやや上方でローラとローラ
のほぼ中間に配されたシャワーノズルから吐出すると共
に循環されるようになっている。ガム引きのためのゾー
ン105には一対のローラがあり、このローラの下方に
は図示されているようにガム液をためる槽があり、ここ
にある液はフィルター(F)とポンプ(P)を介し搬送
面のやや上方でローラに吹き付けるように配されたシャ
ワーノズルから吐出すると共に循環されるようになって
いる。また、このガム引きのためのゾーン105の一対
のローラは、運転休止時にはガム乾燥による上下ローラ
の固着防止のため、上下をリフトアップ機構により分離
できるよう設計されている。感光性平版印刷版は以上述
べたローラ群に挟持され、図示されていない駆動系によ
り搬送される。駆動系は搬送用のモータとプーリとタイ
ミングベルトにより構成するのが好ましいが、シャフト
とギヤによる駆動等でもよい。この搬送用モーターの電
源回路にはソリッドステートリレーが配されており、例
えばマイクロコンピュターと結合したデジタルインプッ
トアウトプット用インターフェイスからの出力信号でオ
ンオフできるようになっている。
EXAMPLES (Explanation of Apparatus) FIG. 2 shows an automatic developing machine for a photosensitive lithographic printing plate according to this example as an example of the present invention. In the figure, 1 to 6 show the same constituent elements as in FIG. 1, and in the figure, the line shown by the dotted line is the conveying surface, and the photosensitive lithographic printing plate advances in the direction of the arrow shown therein. A pair of insertion rollers 101 are arranged in front of the insertion port 4 of the printing plate described above, and the insertion roller 10 is further provided.
The photoelectric switch 102 is arranged in front of No. 1 so as not to contact the conveyance surface. The photoelectric switch 102 may be any sensor as long as it can detect when the photosensitive lithographic printing plate approaches the insertion port 4. Behind the printing plate outlet 4 ', there is arranged a discharge roller 103 which also serves as a pair of squeegees. A zone 104 for rinsing or rinsing is arranged at the rear of the discharge roller 103, and a zone 105 for gumming is arranged at the rear of the zone. The zone 104 for rinsing or rinsing has a pair of insertion rollers and a pair of discharge rollers, and below these rollers is a tank for storing rinsing water or rinsing liquid, as shown in the drawing. Through a filter (F) and a pump (P), the particles are discharged and circulated from a shower nozzle arranged in the middle of the rollers slightly above the conveying surface. In the gumming zone 105, there is a pair of rollers, and below the rollers, there is a tank for accumulating gum liquid as shown in the drawing, and the liquid there is a filter (F) and a pump (P). It is adapted to be discharged and circulated through a shower nozzle arranged so as to be sprayed onto the roller slightly above the conveyance surface. Further, the pair of rollers in the zone 105 for gumming is designed so that the upper and lower rollers can be separated by a lift-up mechanism in order to prevent sticking of the upper and lower rollers due to gum drying when the operation is stopped. The photosensitive lithographic printing plate is sandwiched by the roller group described above and is conveyed by a drive system (not shown). The drive system is preferably composed of a conveying motor, a pulley and a timing belt, but may be driven by a shaft and gears. A solid state relay is provided in the power supply circuit of the carrier motor, and can be turned on / off by an output signal from a digital input / output interface coupled with a micro computer, for example.

【0022】感光性平版印刷版を現像するにあたり、装
置の主電源をオンにすると、まず、現像装置の液注入状
況をレベルセンサ106で検出する。ここで全てのレベ
ルセンサは、液が接しているときはデジタルインプット
アウトプット用インターフェイスに対してハイレベルの
信号を送り、また接していないときはローレベルの信号
を送るようになっている。ただしハイ、ロー逆でもかま
わない。レベルセンサー106がローレベルであれば空
気流出入口3のリークバルブを開けシャッターS1,S
2を閉じる。次に、図2の現像液タンク107の下に示
したポンプ(P)をレベルセンサー106がハイレベル
になるまで駆動し、現像液を現像装置内に注入する。注
入が終了したら空気流出入口3のリークバルブは閉じ
る。レベルセンサー106が既に所定位置よりハイレベ
ルであればこれらの動作は必要ない。更に現像装置内の
現像液の温度が所定値に達するまで待ち状態となる。該
温度は、温度センサー108により測定しているがこの
センサー情報は温度調節用コントローラーに入力され、
ヒーターを制御することにより温度調整される。さらに
該温度調節用コントローラは、マイクロコンピュターに
RS232C等の通信インターフェイスを介し温度情報
を送受信できるようになっている。つまりマイクロコン
ピュターのメモリーに記憶されているか、ユーザーがキ
ーボードにより入力した温度値を温度調節用コントロー
ラーに送り、ヒーターを制御し逐次現像装置内の温度は
温度調節用コントローラーからマイクロコンピュターに
送られる。所定温度に達したらマイクロコンピュターが
出力信号を搬送用モーター駆動回路に送り搬送用モータ
を駆動する。またはユーザーに現像可能状態になったこ
とを知らせる表示を行う。本実施例での所定温度は32
℃である。
In developing the photosensitive lithographic printing plate, when the main power source of the apparatus is turned on, first, the level sensor 106 detects the liquid injection state of the developing apparatus. Here, all the level sensors send a high-level signal to the digital input / output interface when the liquid is in contact, and send a low-level signal when the liquid is not in contact. However, high and low can be reversed. If the level sensor 106 is at a low level, the leak valve of the air outflow inlet 3 is opened and the shutters S1, S are opened.
Close 2 Next, the pump (P) shown below the developer tank 107 in FIG. 2 is driven until the level sensor 106 becomes high level, and the developer is injected into the developing device. When the injection is completed, the leak valve at the air outlet / inlet 3 is closed. If the level sensor 106 is already higher than the predetermined position, these operations are unnecessary. Further, it waits until the temperature of the developing solution in the developing device reaches a predetermined value. The temperature is measured by the temperature sensor 108, but this sensor information is input to the temperature adjustment controller,
The temperature is adjusted by controlling the heater. Further, the temperature adjusting controller can send and receive temperature information to and from the micro computer via a communication interface such as RS232C. That is, the temperature value stored in the memory of the micro computer or input by the user from the keyboard is sent to the temperature adjustment controller, the heater is controlled, and the temperature in the developing device is sequentially sent from the temperature adjustment controller to the micro computer. When the temperature reaches a predetermined temperature, the micro computer sends an output signal to the transportation motor drive circuit to drive the transportation motor. Alternatively, a display is displayed to inform the user that the development is possible. The predetermined temperature in this embodiment is 32.
℃.

【0023】感光性平版印刷版を挿入ローラ101に挿
入すると挿入状態を検出する光電スイッチ102が作動
しハイレベルの信号をマイクロコンピュターに送信す
る。この信号を受けたら機械的脱膜手段である超音波振
動子109を作動させる。それと同時にシャッター4,
4′を開状態にする。現像装置内を感光性平版印刷版は
所定速度で現像されながら搬送されていく。(本実施例
では25mm/秒である。)現像された感光性平版印刷
版は、次にリンスまたは水洗のためのゾーン104で水
洗され、さらにガム引きのためのゾーン105でガム引
きされる。
When the photosensitive lithographic printing plate is inserted into the insertion roller 101, the photoelectric switch 102 for detecting the insertion state is activated and a high level signal is transmitted to the microcomputer. Upon receiving this signal, the ultrasonic transducer 109, which is a mechanical film removing means, is activated. At the same time, shutter 4,
Open 4 '. The photosensitive planographic printing plate is conveyed while being developed at a predetermined speed in the developing device. (25 mm / sec in this example.) The developed photosensitive lithographic printing plate is then rinsed in zone 104 for rinsing or washing, and then gummed in zone 105 for gumming.

【0024】本実施例での現像装置での感光性平版印刷
版1枚当たりの現像液持ち出し量は約100ccであ
り、満水状態(106がハイレベル時)からレベルセン
サ110がローレベルに変わるまでの液量は約3000
ccなので従って、処理枚数が約30枚になると感光性
平版印刷版による持ち出しにより現像液の液面レベルが
低下しレベルセンサー110がローレベルとなる。この
段階で感光性平版印刷版が現像されていない状態になり
次第現像液又は補充液の供給を開始する。この液供給は
初期液供給と同様の方法で行われる。
The developing solution carry-out amount per sheet of the photosensitive lithographic printing plate in the developing device in this embodiment is about 100 cc, and the level sensor 110 changes from the full state (when 106 is at the high level) to the low level. The amount of liquid is about 3000
Since this is cc, when the number of processed sheets reaches about 30, the liquid level of the developing solution is lowered and the level sensor 110 is brought to a low level by taking out the photosensitive lithographic printing plate. At this stage, the supply of the developing solution or the replenishing solution is started as soon as the photosensitive lithographic printing plate is in the state of being undeveloped. This liquid supply is performed in the same manner as the initial liquid supply.

【0025】この際に供給される現像液又は補充液の供
給量は、処理や経時等で、消費されたアルカリを補い、
初期とほぼ同一のアルカリ濃度になる量である。この量
は、供給する液のアルカリ濃度と、処理量と経時時間よ
り、マイクロコンピューターで算出する。ここで算出さ
れた供給量が、上記持ち出し量を上回る場合、排出口6
のドレインバルブを開けて、差量分、廃出する。このよ
うな差量が発生しないように、供給する現像液又は補充
液のアルカリ濃度は好ましくは、初期現像液より高くす
るのがよい。
The amount of the developing solution or the replenishing solution supplied at this time is such that the consumed alkali is supplemented during processing, aging, etc.
It is an amount that gives almost the same alkali concentration as in the initial stage. This amount is calculated by a microcomputer based on the alkali concentration of the liquid to be supplied, the treatment amount and the elapsed time. If the supply amount calculated here exceeds the carry-out amount, the discharge port 6
Open the drain valve of and discard the difference. In order to prevent such a difference from occurring, the alkali concentration of the supplied developer or replenisher is preferably higher than that of the initial developer.

【0026】次に、以上の自動現像装置を用いての実験
例について説明する。 (実験例用サンプルの準備) (感光性平版印刷版) 厚さ0.24mmのアルミニウム板(材質1050,調
質H16)を5重量%の水酸化ナトリウム水溶液中で6
0℃1分間脱脂処理を行った後、0.5モル塩酸水溶液
中において25℃で電流密度60A/dm2 で30秒間
電解エッチング処理を行い砂目立てした。ついで5重量
%水酸化ナトリウム水溶液中で60℃で1分間デスマッ
ト処理をした後、20重量%硫酸溶液中で20℃、電流
密度3A/dm2 で1分間陽極酸化処理を行い、これを
よく洗浄及び乾燥して、砂目板を作製した。次に、下記
組成の感光液を調液し、前記砂目板に乾燥後の塗膜重量
が2.0g/m2 になるように塗布乾燥し、ポジ型の感
光性平版印刷版を得た。
Next, an experimental example using the above automatic developing apparatus will be described. (Preparation of Samples for Experimental Examples) (Photosensitive lithographic printing plate) An aluminum plate (material 1050, temper H16) having a thickness of 0.24 mm was used in a 5% by weight sodium hydroxide aqueous solution for 6
After degreasing treatment at 0 ° C. for 1 minute, electrolytic etching treatment was carried out at a current density of 60 A / dm 2 for 30 seconds in a 0.5 molar hydrochloric acid aqueous solution at 25 ° C. for graining. Then, after desmutting treatment in a 5% by weight sodium hydroxide aqueous solution at 60 ° C. for 1 minute, anodizing treatment in a 20% by weight sulfuric acid solution at 20 ° C. and a current density of 3 A / dm 2 for 1 minute was performed, and this was thoroughly washed. And it dried and the grained board was produced. Next, a photosensitive solution having the following composition was prepared and applied on the grained plate so that the coating film weight after drying was 2.0 g / m 2 , and dried to obtain a positive photosensitive lithographic printing plate. .

【0027】[0027]

【表1】 ピロガロールとアセトンの縮重合により得られた ポリヒドロキシフェニルにナフトキノン−1,2 −ジアジド−5−スルホン酸クロライドをエステ ル化率20%になるようエステル化させた化合物 ・・・・ 22重量% (重量平均分子量 3,000) m−クレゾール/p−クレゾール(7/3)とホルム アルデヒドの共縮重合によるノボラック樹脂 ・・・・ 72重量% (重量平均分子量 7,000) ビクトリアピュアブルーBOH ・・・・ 1重量% 3,4−ジメトキシ安息香酸 ・・・・ 4重量% 2−トリクロロメチル−5−[β−(2−ベンゾ フリル)ビニル]−1,3,4−オキサジアゾール ・・・・ 1重量% ジエチレングリコールジメチルエーテル(DMDG) ・・・・ 上記成分が5重量%になる量。[Table 1] A compound obtained by esterifying naphthoquinone-1,2-diazide-5-sulfonic acid chloride to polyhydroxyphenyl obtained by condensation polymerization of pyrogallol and acetone so that the esterification rate becomes 20% .... 22% by weight (weight average molecular weight 3,000) Novolak resin by copolycondensation of m-cresol / p-cresol (7/3) and formaldehyde 72% by weight (weight average molecular weight 7,000) Victoria Pure Blue BOH --- 1 wt% 3,4-dimethoxybenzoic acid --- 4 wt% 2-trichloromethyl-5- [β- (2-benzofuryl) vinyl] -1,3,4-oxadi Azole: 1% by weight diethylene glycol dimethyl ether (DMDG) :: The amount by which the above components become 5% by weight.

【0028】以上のようにして得られたポジ型の感光性
平版印刷版をポジの原画フィルムを真空密着させ、1m
の距離から3kWのメタルハライドランプを用いて60
秒間露光した。尚、ポジの原画フィルムは画線部の面積
率が20%のものを使用した。 (現像液) 図2に示した現像液タンク107に最初に下記組成の現
像母液を5リットル仕込んだ。
The positive type photosensitive lithographic printing plate obtained as described above is vacuum-bonded to a positive original image film for 1 m.
From a distance of 60 with a 3kW metal halide lamp
Exposed for 2 seconds. The positive original film used had an area ratio of the image area of 20%. (Developer) The developer tank 107 shown in FIG. 2 was initially charged with 5 liters of a developer mother solution having the following composition.

【0029】[0029]

【表2】 水酸化カリウム ・・・・ 750g Aタイプ珪酸カリウム ・・・・ 625g (40%水溶液) 界面活性剤 ・・・・ 5.5g (エマルゲン147) エチレンジアミン4酢酸 ・・・・ 1.2g 脱塩水 ・・・・ 上記組成を含めて5リットルになるように調整。[Table 2] Potassium hydroxide ··· 750 g A type potassium silicate ··· 625 g (40% aqueous solution) Surfactant ··· 5.5 g (Emulgen 147) Ethylenediamine tetraacetic acid ··· 1.2 g Demineralized water ... Adjusted to 5 liters including the above composition.

【0030】この現像母液を現像タンク107に仕込み
終わると、更に水を25リットル供給し、図2には示さ
れていないタンクに取りつけられたタンク内循環ポンプ
により液が循環され、それにより水と母液が混合され総
計30リットルの現像液ができた。また図2に示したリ
ンスまたは水洗のゾーン104及びガム引きのゾーン1
05にはそれぞれ水を5リットル仕込んだ。
When the developing mother liquor has been charged into the developing tank 107, 25 liters of water is further supplied, and the solution is circulated by the in-tank circulation pump attached to the tank not shown in FIG. The mother liquor was mixed to make a total of 30 liters of developer. Further, the rinse or washing zone 104 and the gumming zone 1 shown in FIG.
Each of 05 was charged with 5 liters of water.

【0031】(感光性平版印刷版の現像)以上の条件で
自動現像機を作動させると、自動的に現像装置内に現像
液が所定量供給され、しばらくすると現像装置内の現像
液の温度が32℃になり現像可能状態となった。そこで
前記の感光性平版印刷版(1030mm×800mm)
を挿入すると、シャッター部が開き、また超音波照射が
開始され、約12秒で感光性平版印刷版の先端が現像装
置から出て引き続き水洗され合計40秒で先端が自動現
像装置から出て、安定な画像再現性を有する感光性平版
印刷版が得られた。
(Development of photosensitive lithographic printing plate) When the automatic developing machine is operated under the above conditions, a predetermined amount of the developing solution is automatically supplied into the developing device, and after a while, the temperature of the developing solution in the developing device increases. The temperature reached 32 ° C, and development was possible. Therefore, the photosensitive lithographic printing plate described above (1030 mm x 800 mm)
, The shutter is opened, the ultrasonic irradiation is started, the leading edge of the photosensitive lithographic printing plate comes out of the developing device in about 12 seconds and is continuously washed with water, and the leading edge comes out of the automatic developing device in 40 seconds in total. A photosensitive lithographic printing plate having stable image reproducibility was obtained.

【0032】現像タンク107には現像液量がわかるよ
うに目盛りが刻んであり、現像開始段階では所定量30
リットルであった。空気による水分の蒸発を調べるため
に上記と同様の方法で感光性平版印刷版を100版を8
時間かけて現像し、さらに8時間装置を止め放置して再
び8時間かけて100版現像を行った。この操作の後の
現像液量を調べたところ27.5リットルであった。感
光性平版印刷版(1030mm×800mm)1版当た
りの他層への現像液の持ち出し量は平均約15mlなの
で200版で約3リットルの持ち出しがある。従って水
分の蒸発が有ると27リットルを下回るはずであるが、
結果は27リットルを上回っているため、他層への現像
液の持ち出ししか起こらず、しかも水分はほとんど蒸発
しなかったことがわかった。
The developing tank 107 is graduated so that the amount of developing solution can be seen.
It was liter. In order to examine the evaporation of water due to air, the photosensitive lithographic printing plate was printed with 100 plates in the same manner as above.
Development was carried out over a period of time, the apparatus was stopped for an additional 8 hours, and the 100th plate development was carried out again over 8 hours. When the amount of the developer after this operation was examined, it was 27.5 liters. Since the amount of developing solution carried out to another layer per photosensitive lithographic printing plate (1030 mm × 800 mm) is about 15 ml on average, about 200 liters carry out about 3 liters. Therefore, if there is evaporation of water, it should be less than 27 liters,
Since the result was more than 27 liters, it was found that only the development solution was taken out to the other layer and the water was hardly evaporated.

【0033】また空気による液疲労の影響を調べるた
め、50版に1版の割合で感光性平版印刷版のステップ
感度(クリアー段数)を調べた。その結果を表−1の実
施例と記した欄に示した。尚、本実施例は無補充で行っ
たため、ある程度処理が進むと感度が低下していく。そ
れが感光性平版印刷版の処理による液疲労か空気による
疲労か判断しにくいため、比較例として、従来型のシャ
ワーにより感光性平版印刷版に現像液を供給する型の自
動現像装置で同一の実験を行った。この比較例の装置は
図2に示した現像処理工程装置の代わりに現像槽が設け
てあり、この槽には一対の挿入ローラと搬送面上にその
円周が当たるように配置された回転ブラシと一対の排出
ローラがあり、これらローラの下方に現像液をためる槽
があり、ここにある液はフィルターとポンプを介し搬送
面のやや上方でローラとローラのほぼ中間に配されたシ
ャワーノズルから回転ブラシに向け吐出すると共に循環
されるようになっている。この比較例用の装置に実施例
と同様の現像液を30リットル仕込み、実施例と同様の
感光性平版印刷版を32℃で現像槽を12秒で通過する
よう条件を設定して実施例と同様に100版を8時間か
けて現像し、さらに8時間装置を止め放置して再び8時
間かけて100版現像を行った。50版に1版の割合で
感光性平版印刷版のステップ感度を調べた。その結果を
表−1の比較例と記した欄に示した。
In order to examine the influence of liquid fatigue due to air, the step sensitivity (clear step number) of the photosensitive lithographic printing plate was examined at a ratio of 1 plate to 50 plates. The results are shown in the column labeled Example in Table-1. Since the present embodiment was carried out without replenishment, the sensitivity decreased as the processing proceeded to some extent. Since it is difficult to judge whether it is the liquid fatigue due to the processing of the photosensitive lithographic printing plate or the fatigue due to air, as a comparative example, the same automatic developing device of the type that supplies the developing solution to the photosensitive lithographic printing plate by the conventional shower An experiment was conducted. In the apparatus of this comparative example, a developing tank is provided instead of the developing processing apparatus shown in FIG. 2, and in this tank, a pair of insertion rollers and a rotary brush arranged so that the circumference thereof contacts the conveying surface. There is a pair of discharge rollers, and there is a tank for storing the developing solution below these rollers, and the solution there is from a shower nozzle, which is located almost midway between the rollers and slightly above the transport surface via a filter and a pump. It is designed to be discharged and circulated toward a rotating brush. To the apparatus for this comparative example, 30 liters of the same developing solution as in the example was charged, and conditions were set so that the same photosensitive lithographic printing plate as in the example could pass through the developing tank at 32 ° C. in 12 seconds. Similarly, the 100th plate was developed for 8 hours, the apparatus was stopped for 8 hours, and the 100th plate was developed again for 8 hours. The step sensitivity of the photosensitive lithographic printing plate was examined at a ratio of 1 plate to 50 plates. The results are shown in the column labeled Comparative Example in Table 1.

【0034】[0034]

【表3】 (ステップ段階は1/4段刻みで読み取った。) 実施例の場合は、比較例と比べて明らかに空気による液
疲労が少ない。
[Table 3] (The step steps were read in 1/4 step increments.) In the case of the example, the liquid fatigue due to air is obviously less than in the comparative example.

【0035】[0035]

【発明の効果】以上の実施例からも明らかなように本発
明の感光性平版印刷版の現像方法および自動現像機を用
いれば、ディップ現像を実質的に密閉状態で実施できる
こととなり、現像液の空気による疲労や現像液からの水
分の蒸発等が極力少なくかつ感光性平版印刷版を曲げる
ことなく安定性のある現像ができるという効果が達成さ
れる。
As is apparent from the above examples, by using the method for developing a photosensitive lithographic printing plate and the automatic developing machine of the present invention, dip development can be carried out in a substantially closed state. Fatigue due to air and evaporation of water from the developing solution are minimized, and stable development can be achieved without bending the photosensitive lithographic printing plate.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の概念を示す現像槽の断面の概略図であ
る。
FIG. 1 is a schematic view of a cross section of a developing tank showing the concept of the present invention.

【図2】本発明の現像装置の断面の概略図である。FIG. 2 is a schematic cross-sectional view of the developing device of the present invention.

【符号の説明】[Explanation of symbols]

1 現像槽 2 現像液供給口 3 空気流出入口 4 現像すべき印刷版の挿入口であるスリット 4′ 現像された印刷版の出口であるスリット 5 スリット4を開閉するシャッター 5′ スリット4′を開閉するシャッター 6 現像液の排出口 101 挿入ローラ 102 光電スイッチ 103 排出ローラ 104 リンスまたは水洗ゾーン 105 ガム引きゾーン 106 レベルセンサー 107 現像液タンク 108 温度センサー 109 超音波振動子 110 レベルセンサー 1 developing tank 2 developing solution supply port 3 air outflow port 4 slit which is an insertion port of a printing plate to be developed 4'slit which is an outlet of a developed printing plate 5 shutter which opens and closes slit 4 5'slit 4 ' Shutter 6 Developer outlet 101 Insertion roller 102 Photoelectric switch 103 Ejection roller 104 Rinse or washing zone 105 Gumming zone 106 Level sensor 107 Developer tank 108 Temperature sensor 109 Ultrasonic transducer 110 Level sensor

───────────────────────────────────────────────────── フロントページの続き (72)発明者 中井 英之 東京都日野市さくら町1番地 コニカ株式 会社内 (72)発明者 菅岩 隆之 東京都日野市さくら町1番地 コニカ株式 会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hideyuki Nakai No. 1 Sakura-cho, Hino-shi, Tokyo Konica stock company (72) Inventor Takayuki Sugiwa No. 1 Sakura-cho, Hino-shi, Tokyo Konica stock company

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 露光後の感光性平版印刷版を現像槽内に
おいて曲率を持たせずに搬送し、ディップ方式で現像す
ることを特徴とする感光性平版印刷版の現像方法。
1. A method of developing a photosensitive lithographic printing plate, which comprises transporting the exposed photosensitive lithographic printing plate in a developing tank without curvature and developing the photosensitive lithographic printing plate by a dip method.
【請求項2】 ディップ方式で現像する感光性平版印刷
版用自動現像機において、感光性平版印刷版の挿入口、
出口及び現像槽内の感光性平版印刷版の搬送ラインが直
線的に構成されていることを特徴とする感光性平版印刷
版用自動現像機。
2. An automatic developing machine for a photosensitive lithographic printing plate which develops by a dip method, wherein an insertion port for the photosensitive lithographic printing plate,
An automatic developing machine for a photosensitive lithographic printing plate, characterized in that a transport line for the photosensitive lithographic printing plate in the outlet and the developing tank is linearly configured.
【請求項3】 現像液の供給または排出時以外は実質的
に気密に密閉することができる構造である現像槽を有す
ることを特徴とする請求項2記載の感光性平版印刷版用
自動現像機。
3. An automatic developing machine for a photosensitive lithographic printing plate according to claim 2, further comprising a developing tank having a structure that can be hermetically closed except when the developing solution is supplied or discharged. .
【請求項4】 前記の現像液の供給または排出時以外は
実質的に気密に密閉することができる構造が、前記感光
性平版印刷版の挿入口及び出口に設けられているスリッ
トと該スリットを開閉するシャッターを具備したもので
あることを特徴とする請求項2及び請求項3記載の感光
性平版印刷版用自動現像機。
4. A structure which can be hermetically sealed except when the developing solution is supplied or discharged has a slit provided at an insertion port and an exit of the photosensitive lithographic printing plate and the slit. An automatic developing machine for a photosensitive lithographic printing plate according to claim 2 or 3, further comprising a shutter that opens and closes.
JP8968694A 1994-04-27 1994-04-27 Developing method of photosensitive planographic printing plate and automatic developing machine used therein Pending JPH07295237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8968694A JPH07295237A (en) 1994-04-27 1994-04-27 Developing method of photosensitive planographic printing plate and automatic developing machine used therein

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8968694A JPH07295237A (en) 1994-04-27 1994-04-27 Developing method of photosensitive planographic printing plate and automatic developing machine used therein

Publications (1)

Publication Number Publication Date
JPH07295237A true JPH07295237A (en) 1995-11-10

Family

ID=13977659

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8968694A Pending JPH07295237A (en) 1994-04-27 1994-04-27 Developing method of photosensitive planographic printing plate and automatic developing machine used therein

Country Status (1)

Country Link
JP (1) JPH07295237A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006064877A (en) * 2004-08-25 2006-03-09 Kodak Polychrome Graphics Japan Ltd Developing processing method and device of planograph printing original plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006064877A (en) * 2004-08-25 2006-03-09 Kodak Polychrome Graphics Japan Ltd Developing processing method and device of planograph printing original plate
JP4607521B2 (en) * 2004-08-25 2011-01-05 コダック株式会社 Development processing method and apparatus for planographic printing plate precursor

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