JPS60147339A - Dampening water apparatus for planographic printing - Google Patents

Dampening water apparatus for planographic printing

Info

Publication number
JPS60147339A
JPS60147339A JP316884A JP316884A JPS60147339A JP S60147339 A JPS60147339 A JP S60147339A JP 316884 A JP316884 A JP 316884A JP 316884 A JP316884 A JP 316884A JP S60147339 A JPS60147339 A JP S60147339A
Authority
JP
Japan
Prior art keywords
dampening water
water
water jet
dampening
printing plate
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
JP316884A
Other languages
Japanese (ja)
Inventor
Kenji Shinohara
賢治 篠原
Masaki Takemoto
竹本 正基
Sachihiro Tsuruoka
鶴岡 祥宏
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.)
Toppan Inc
Original Assignee
Toppan Printing Co Ltd
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 Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP316884A priority Critical patent/JPS60147339A/en
Publication of JPS60147339A publication Critical patent/JPS60147339A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F7/00Rotary lithographic machines
    • B41F7/20Details
    • B41F7/24Damping devices
    • B41F7/30Damping devices using spraying elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)

Abstract

PURPOSE:To make it possible to easily perform the partial control and fine adjustment of a dampening water amount, by parallelly providing a plurality of water jet apparatuses along a plate cylinder in parallel to the rotary shaft of the plate cylinder and applying the drops of dampening water emitted from said water jet apparatuses to the surface of a printing plate. CONSTITUTION:A water jet apparatus group 10 is constituted so that a plurality of water jet apparatuses 11 are parallelly provided in parallel to the axial direction of a plate cylinder 1 so as to allow the opening part of each water jet nozzle head 14 to oppose to the peripheral surface of the plate cylinder 1. Dampening water is applied to the surface of a printing plate 3 from the water jet apparatus group 10 and charging frequency corresponding to the desired amount of dampening water is determined on the basis of an input signal and the dampening water pulverizing frequency from an ultrasonic oscillator 17 by a charging signal generator 16. Particles pulverized and emitted by the ultrasonic oscillator 15 operating on the basis of the dampening water pulverizing frequency are selectively charged by a charging electrode 18 and adhered to the surface of the printing plate 3 while deflected by a deflection plate 19. On the other hand, uncharged particles are not deflected and advance straightly to be received by a gutter 20.

Description

【発明の詳細な説明】 この発明は、平版印刷用の印刷版表面に湿し水を付与す
る湿し水装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dampening water device that applies dampening water to the surface of a printing plate for planographic printing.

従来知られている湿し水装置は、印刷機の版胴に装着さ
れている印刷版表面に版付はローラを当接せしめ、この
版付はローラに水元ローラから湿し水を供給することに
より印刷版面に直接湿し水をローラを介して付与する方
法、或いは一般にダールグレン方式と称される、印刷版
に接しているローラにインキと湿し水の両者を供給し、
このローラから印刷版面にインキと湿し水を付与する方
法が一般的である。
In conventionally known dampening water devices, a roller is brought into contact with the surface of a printing plate mounted on the plate cylinder of a printing press, and dampening water is supplied to the roller from a water source roller. A method in which dampening water is applied directly to the printing plate surface via a roller, or a method in which both ink and dampening water are supplied to a roller in contact with the printing plate, generally referred to as the Dahlgren method,
A common method is to apply ink and dampening water to the printing plate surface from this roller.

ところが、このような従来の湿し水装置によれば、湿し
水の供給量の調整が作業者の目視と勘に頼ってなされて
いるため、熟練者でなければ調整不可能であり、また、
印刷版の中方向における部分的なコントロールも不可能
であり、さらには湿し水供給量の微調整が非常に困難で
ある等の欠点があった。
However, with such conventional dampening water devices, the amount of dampening water supplied relies on the operator's visual inspection and intuition, which means that only an experienced person can adjust the amount of dampening water supplied. ,
It is not possible to partially control the inside direction of the printing plate, and furthermore, it is very difficult to finely adjust the amount of dampening water supplied.

この発明は上記従来技術の欠点を解消すべくなされたも
のであり、その目的とするところは微調整を含む湿し水
供給量の調整を容易に行ない得、かつ印刷版の巾方向に
おける部分的なコントロールが可能な湿し水製aを提供
することにある。
This invention has been made to solve the above-mentioned drawbacks of the prior art, and its purpose is to easily adjust the amount of dampening water supplied, including fine adjustment, and to partially adjust the amount of dampening water supplied in the width direction of the printing plate. The purpose of the present invention is to provide a dampening water product that can be controlled.

以下に、この発明を若干の実施例に基づき詳細に説明す
る。第1図はこの発明の概略説明図である。第1図にお
いて、(l)は男胴であり、その周囲に平版印刷用印刷
版(3)が巻回装着される。印刷版(3)の表面にほこ
の発明にかかるウォータージェット装置群αOから湿し
水が、周知のインキングローラ(4)からは印刷インキ
が各々付与され、印刷インキは印刷版の画線部のみに付
着して、これがブランケット胴(2)K転移され、さら
に図示されていない圧胴とブランケット胴(2)の間を
通過する印刷用紙に転移されて印刷が施される。
This invention will be explained in detail below based on some examples. FIG. 1 is a schematic explanatory diagram of the present invention. In FIG. 1, (l) is a male torso, around which a printing plate (3) for lithographic printing is wound and mounted. Dampening water is applied to the surface of the printing plate (3) from the water jet device group αO according to Hoko's invention, and printing ink is applied from the well-known inking roller (4), and the printing ink is applied to the image area of the printing plate. This is transferred to the blanket cylinder (2) K, and further transferred to the printing paper that passes between the impression cylinder (not shown) and the blanket cylinder (2), where printing is applied.

ウォーレ、−ジェット、装置群(101は複数個のウォ
ータージェット装置(1u、Ion・・・が版胴の回転
軸と同一方向に並設されて構成されているものであり、
個々のウォータージェット装置の基本的構成を第2図に
基づき説明する。
Wallet, jet, device group (101 is composed of a plurality of water jet devices (1u, Ion...) arranged in parallel in the same direction as the rotation axis of the plate cylinder,
The basic configuration of each water jet device will be explained based on FIG. 2.

第2図に示されたウォータージェット装置tlllは、
公知のインキジェットプリンターのスイート力式のもの
と基本的な構成を同じ(するものであり。
The water jet device tllll shown in FIG.
It has the same basic configuration as the sweet force type of known inkjet printers.

入力信号及び超音波発振器07)からの湿し水粒子化周
波数に基づき帯電信号発生器+161において所望の湿
し水の量に応じた帯電周波数が決定され、一方超音波発
振器0ηからの湿し水粒子化周波数にて作動する超音波
振動子によりウォータージェットノズルヘッド(I4)
の開口部から湿し水が粒子化されて吐出され、この粒子
が帯電周波数を受けた帯電電極にて選択的に帯電を受け
る。この後、湿し水の粒子は偏向電極の間を通過し、こ
の位置で帯電さJまた粒子は偏向されて印刷版(3)の
表面に衝突して付着する。他方、帯電されていない粒子
は偏向されず直進して印刷版(3)に達するまでにガー
ター(20)に受け止められる。
Based on the input signal and the dampening water pulverization frequency from the ultrasonic oscillator 07), a charging frequency corresponding to the desired amount of dampening water is determined in the charging signal generator +161, while the dampening water from the ultrasonic oscillator 0η Waterjet nozzle head (I4) with ultrasonic vibrator operating at atomization frequency
The dampening water is pulverized and discharged from the opening, and the particles are selectively charged by a charging electrode that receives a charging frequency. After this, the particles of dampening solution pass between the deflection electrodes, at which point the charged particles are deflected and impinge upon the surface of the printing plate (3) and adhere thereto. On the other hand, uncharged particles are not deflected and travel straight, and are caught by the garter (20) before reaching the printing plate (3).

Xのような構成のウォータージェット装置(Illが前
述したように版、胴[11の軸方向と平行に、かつウォ
ータージェットノズルヘッドQ41の開口部が版胴(1
)周囲に対向するよう複数個並設されて、ウォータージ
ェット装置群(lωが構成される。
A water jet device having a configuration like X (as described above, the plate and cylinder [11
) A plurality of water jet devices are arranged in parallel to face each other to form a group of water jet devices (lω).

ウォータージェット装置旧)の設置個数は、吐出された
粒子が印刷版(3)の表面に衝突して薄膜状に広がった
状態において、隣接するウォータージェット装置から同
様にして吐出され、印刷版面に衝突した薄膜状の湿し水
と重なり合う部分が生じるようにウォータージェット装
置の設置間隔を決定し、これに基づき定めるのが良い。
The number of installed water jet devices (formerly known as water jet devices) is such that when the ejected particles collide with the surface of the printing plate (3) and spread into a thin film, they are similarly ejected from the adjacent water jet device and collide with the printing plate surface. It is best to determine the installation interval of the water jet device so that there will be a portion that overlaps the dampening water in the form of a thin film, and set the interval based on this.

なお、偏向電極にて偏向を受けずガーター(20)に受
け止められた湿し水は、全てのウォータージェット装置
ui+、 all、・・・に共通の湿し水タンク(12
1に回収され、アルコール分調整等その組成の調整を受
けて、再び加圧用ポンプ(131にて各々のウォーター
ジェット装置+111、(111、・・・に供給される
The dampening water received by the garter (20) without being deflected by the deflection electrode is stored in the dampening water tank (12) common to all water jet devices ui+, all,...
1, and after its composition is adjusted such as alcohol content adjustment, it is again supplied to each water jet device +111, (111, . . . by a pressurizing pump (131).

また、印刷版(3)表面に衝突して薄膜化した湿し水の
膜厚が安定しない場合のために、ウォータージェット装
置群t1’0)の版胴1回転方向後段に水ならし扇ロー
ラ01)を設け、湿し水の膜厚の強制的均一化を図って
も良い。
In addition, in case the film thickness of the dampening water that has become thin due to collision with the surface of the printing plate (3) is not stable, a dampening fan roller is installed at the rear stage in the direction of one rotation of the plate cylinder of the water jet device group t1'0). 01) may be provided to forcibly equalize the film thickness of the dampening solution.

また、第2図に示されているウォータージェットノズル
ヘッド(141に換えて、インキジェットプリンターに
おいて公知のマルチノズルヘッドを用0ることもできる
。この場合、より小径でかつ粒子間の間隔の狭い粒子を
得ること′fJ″−できるので、印刷版(3)表面上で
の膜厚の均一化を図ることができる。なお、ウォーター
ジェットノズルヘッドはこれ等に限定されることな(、
インキジェットプリンターにおいて公知の他の方式のヘ
ッドを用いることも可能である。
Furthermore, instead of the water jet nozzle head (141) shown in Fig. 2, a multi-nozzle head known for ink jet printers may be used. Since it is possible to obtain particles 'fJ'-, it is possible to achieve a uniform film thickness on the surface of the printing plate (3).The water jet nozzle head is not limited to these.
It is also possible to use heads of other types known in inkjet printers.

以上のグロくの構成とすることにより、各ウォータージ
ェット装置毎に印刷版(3)表面にまで達する湿し水の
粒子数を帯電周波数を変化せしめて調整することにより
、湿し水の量の部分的なコントロール及び微調整を極め
て容易に行なうことができる。
With the above detailed configuration, the number of dampening water particles that reach the surface of the printing plate (3) can be adjusted for each water jet device by changing the charging frequency, thereby controlling the amount of dampening water. Partial control and fine adjustments can be made very easily.

次に、このような本発明の特性を考慮己だ応用例につき
説明する。 ゛ 第3図に示されたブロック図は、印刷版における画線部
の面積率に基づき本発明にかかる湿し水装置を制御する
基本的な回路構成を示すものである。
Next, an application example will be described taking into consideration the characteristics of the present invention. The block diagram shown in FIG. 3 shows the basic circuit configuration for controlling the dampening water device according to the present invention based on the area ratio of the image area on the printing plate.

印刷版画線部面積率計(4I)は、印刷版に焼き付けら
れた絵柄の画線部の面積率を測定するものであり1通常
インキ壺の分割キーに対応して印刷版の巾方向に分割さ
れたゾニン毎の画線部の面積率を測定するものである。
The printing plate line area ratio meter (4I) measures the area ratio of the image area of the image printed on the printing plate. The area ratio of the printed area for each zonin is measured.

このような印刷版画線部面積率計は特開昭58−105
0’07号公報、特開昭56−24508号等にその内
容が詳細に開示されているので、ここではこれ以上の説
明−は省略する。
This type of printing plate line area ratio meter was developed in Japanese Patent Application Laid-Open No. 58-105.
Since the contents are disclosed in detail in Publication No. 0'07, Japanese Patent Laid-Open No. 56-24508, etc., further explanation will be omitted here.

印刷版画線部面積率計(41)から出力されろゾーン毎
の画線部面積率データは分周率選択回路(42)に人力
されろ。
The print area ratio data for each zone output from the printing plate line area ratio meter (41) is manually input to the frequency division ratio selection circuit (42).

分周率選択回路(42)ではその面積率データに応じて
ウォータージェット装置から吐出されろ湿し水の粒子の
うち何個に1個帯電させろか、その個数が決定されろ。
The frequency division ratio selection circuit (42) determines how many particles of dampening water to be charged with one out of the particles of dampening water discharged from the water jet device according to the area ratio data.

即ち、画線部の面積率が多ければ。That is, if the area ratio of the drawing part is large.

湿し水の量は少量で済み、逆に画線部の面積率が少なけ
れば湿し水の量が多く必要となる平版印刷の基本的な関
係に基づき、各ゾーン毎の粒子帯電頻度を決定fろもの
であって、−例として−y−−で規定される関数にて画
線部の面積率と湿し水の量との相対関係を近似し、この
関係に基づき必要な湿し水の量?算出して、その量に見
合った帯電すべき粒子の頻度、即ちウォータージエンl
−装置から吐出されろ粒子のうち何個に1個帯′を托さ
せるかその個数を決定するものである。
Particle charging frequency for each zone is determined based on the basic relationship in lithographic printing: a small amount of dampening water is required, and conversely, if the area ratio of the printed area is small, a large amount of dampening water is required. -For example, the relative relationship between the area ratio of the drawing area and the amount of dampening water is approximated by a function defined by -y--, and the necessary dampening water is determined based on this relationship. amount? Calculate the frequency of particles to be charged commensurate with the amount, that is, water diene l
- It determines how many particles out of the particles discharged from the device are to be covered with one band'.

他方、超音波発振器(17jから発生される湿し水粒子
化周波数信号は超音汲振動子t+51に入力されてウォ
ーターシェツトノズルヘッドの開口部からその周波数で
粒子化された湿し水が吐出され6゜また、超音波発振器
(17)は分周カウンタ(43)に接続さ112分14
’51カウンタ旧では湿し水粒子化周波数をカウントし
、このカウント値と分周率選択回路(42)から入力さ
れる粒子帯電頻度信号、即ち分局正信号とをコンパレー
タ(44)で比較し、コンパl/ −タ(Ill)から
は両者が一改する都度一致イぎ号が出力される。
On the other hand, the dampening water pulverization frequency signal generated from the ultrasonic oscillator (17j) is input to the ultrasonic pumping transducer t+51, and dampening water pulverized at that frequency is discharged from the opening of the watershed nozzle head. 6° Also, the ultrasonic oscillator (17) is connected to the frequency division counter (43).
In the old '51 counter, the dampening water particle formation frequency is counted, and this count value is compared with the particle charging frequency signal inputted from the frequency division ratio selection circuit (42), that is, the division positive signal, by the comparator (44). The comparator (Ill) outputs a matching signal every time the two are changed.

コンバレ〜りt14)からの一致信号は分周カウンタt
lI3+のクリアー信号に用いられるとともに帯電信号
発生器(Ifi)K人力され、帝″覗信号発生器(1G
)からは一致信号ど同〜の周波数で帯′亀信号が出力さ
れ、この信号に基づき帯紙電極が作→Φして所定の頻度
で ・湿し水の粒子か帯電され、その粒子が印刷版表面
に付着することにより所望量の湿し水を得ることが可能
となる。
The coincidence signal from the converter t14) is sent to the frequency division counter t.
It is used for the clear signal of lI3+, the charging signal generator (Ifi) is manually powered, and the Tei' peep signal generator (1G
) outputs a band signal with the same frequency as the matching signal, and based on this signal, a charged paper electrode is created → Φ and at a predetermined frequency. - Particles of dampening water are charged, and the particles are transferred to the printing plate. By adhering to the surface, it becomes possible to obtain the desired amount of dampening water.

上記の如(の構成にて、印刷版の絵柄の画線部の面積率
に基づき、印刷版の天地方向のゾーン毎に必要な湿し水
の量ケ判別し、ウォータージェット装置からの湿1〜水
の粒子を選択的に帯電することにより、そのゾーンに適
正な湿し水を付与することができる。
With the above configuration, the amount of dampening water required for each zone in the vertical direction of the printing plate is determined based on the area ratio of the image area of the image on the printing plate, and the amount of dampening water from the water jet device is determined. ~ By selectively charging the water particles, the appropriate dampening solution can be applied to the zone.

次に、本発明装置の他の応用例を第4図に基づき説明す
る。
Next, another application example of the device of the present invention will be explained based on FIG.

第4図に示されているブロック図は、印刷版表面に付与
されている湿し水の量を検出し、この検出信号に基づき
予め決められムニ水世になるようにフィードバック制御
を行なうものである。
The block diagram shown in Fig. 4 detects the amount of dampening water applied to the surface of the printing plate, and performs feedback control based on this detection signal so that a predetermined muni water age is achieved. .

15101湿し水量検出装置であり、例えば光学センサ
な印刷版表面の湿し水量を検出可能な位置に設け、印刷
版の中方向に分割されたゾーン毎((印刷版表面からの
湿し水の膜厚の差に起因する反射光量差ケ光学センサで
電気信号に変換し、この信号のレベルに基づぎ前記ゾー
ン毎の湿し水量を判定するものであって、かかる湿し水
量検出装置は既に特開昭57−179608号公報又は
eP!j開昭57〜182622号公報等て記載されて
周知となっているので、ここではその詳細な説明を詳略
″fる。
15101 is a dampening water amount detection device, which is installed at a position where it can detect the amount of dampening water on the surface of the printing plate, such as an optical sensor, and is installed in each zone divided in the middle direction of the printing plate (((dampening water from the surface of the printing plate). The difference in the amount of reflected light caused by the difference in film thickness is converted into an electrical signal by an optical sensor, and the amount of dampening water in each zone is determined based on the level of this signal, and such a dampening water amount detection device Since it has already been described in Japanese Unexamined Patent Application Publication No. 57-179608 or eP!j Publication No. 182622, etc., and is well known, a detailed explanation thereof will be omitted here.

湿し水量検出装置鋒(51)からのlll1前記ゾーン
毎の湿し水量信号は、当該ゾーン毎に設置されている第
1のコンパレータ(52)及び第2のコンパレータ(5
3) VC入力さり、ろ。第1のコンパレータ(5(2
)及び第2のコンパレータc)3)では現在の湿し水量
が予め設定されている湿し水量の+[仝正範囲内にある
か否かう′比較判別するものであり、各々に」二限スレ
ッシュホールド値を設定する上限設定回路(+I:(l
及び下限スレッシュホールド値を設定する下限設定回路
(55)が接続さftていゐ。
The dampening water amount signal for each zone from the dampening water amount detection device (51) is transmitted to a first comparator (52) and a second comparator (52) installed for each zone.
3) VC input. The first comparator (5(2
) and the second comparator c) and 3) compare and determine whether the current amount of dampening water is within the preset + [correct range], and each has two limits. Upper limit setting circuit for setting the threshold value (+I: (l
and a lower limit setting circuit (55) for setting a lower limit threshold value.

従って、現在の湿し水量が一ヒ眠スレッシュホールド値
を超えたとき、コンパレータ(52)から湿し水量過多
信号が、他方F限スレッシーホールド値以下となったと
き湿し水量不足信号が帯゛祇信号補正回路6B) K送
られろ。帯′屯信号補正回路(56)では前記入力信号
に基づき、帯電信号発生器(161による帯電周波数を
補正fる信号を出力する。ulJち、湿し水量適多信号
が入力されたときは、粒子の帯電を一時的に停止するか
或いは帯電周波数を低(する方向に帯電信号発生器Q6
1 K信号を送り、他方、湿し水量不足信号が入力され
たときは、帯電周波数を高(する方向に帯電信号発生器
(16;に信号が送られる。
Therefore, when the current amount of dampening water exceeds the sleep threshold value, the comparator (52) outputs an excessive amount of dampening water signal, and when the other becomes less than the F limit threshold value, the insufficient amount of dampening water signal is output.゛Y signal correction circuit 6B) Send K. Based on the input signal, the band signal correction circuit (56) outputs a signal that corrects the charging frequency by the charging signal generator (161).When the dampening water quantity signal is input, The charging signal generator Q6 is used to temporarily stop charging the particles or lower the charging frequency.
On the other hand, when a dampening water shortage signal is input, a signal is sent to the charging signal generator (16) in the direction of increasing the charging frequency.

帯電信号発生器(161では、かかる信号を受けて、そ
の信号に従って帯電周波数を制御し、これを帯電電極(
18Iに入力することにより印刷版表面に供給する湿し
水の量を制御することができる。
The charging signal generator (161) receives such a signal, controls the charging frequency according to the signal, and transmits the signal to the charging electrode (161).
The amount of dampening water supplied to the surface of the printing plate can be controlled by inputting it to 18I.

なお、超音波発振器(1つ及び超音波振動子(151は
既に説明したものと同様の構成作用を有するものである
Note that the ultrasonic oscillator (one) and the ultrasonic transducer (151) have the same configuration and function as those already described.

上記のグロ(の構成となすことにより、印刷版の天地方
向のゾーン毎に湿し水の量をフィードバック制御するこ
とが可能となる。
With the above configuration, it is possible to feedback control the amount of dampening water for each zone in the vertical direction of the printing plate.

この発明は以上に述べた通りであり、湿し水の供給量の
調整が容易となり、ために調整時間の短縮を図ることが
できるとともに熟練者でな(とも調整可能となり、また
その微調整及び部分的なコントロールも簡単に行なうこ
とができる。このため、画雇部の多い部分については水
量を少くfることができ、インキの乳化が減少しインキ
園度を上昇せしめることが可能となり、また用紙の伸縮
を減少せしめることができる。
As described above, this invention makes it easy to adjust the supply amount of dampening water, thereby shortening the adjustment time. Partial control can be easily carried out.For this reason, the amount of water can be reduced in areas with a large number of drawing areas, reducing emulsification of ink and increasing the ink density. Expansion and contraction of paper can be reduced.

また、画線部の面積率に基づ(湿し水供給量の初期設定
、及び印刷版表面の湿し水誓検出による湿し水供給量の
自動制御への対応も容易となり、作業性の向上に太き(
寄与するものである。
In addition, it is easy to automatically control the amount of dampening water supplied based on the area ratio of the printed area (initial setting of the amount of dampening water supplied) and detection of dampening water on the surface of the printing plate, which improves work efficiency. Thick to improve (
It is something that contributes.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の一実施例を示すものであり、第1図は本
発明装置の概1略説明図、第2図はウォータージェット
装置の一例を示す説明図、第3図及び第4図は本発明装
置の応用例を説明するためのブロック図である。 (10)・・・ウォータージェット装置群旧)・・ウォ
ータージェット装置 (14)・・ウォータージェットノズル(15)・・・
超音波発振器 (16)・・・帯電信号発生器 aη・・・超音波発振器 agJ・・・帯電電極 +14m・・・偏向電極 噛・・・ガーター 131)・・・水ならしローラ 特許出願人 凸版印刷株式会社 代表者鈴木相夫 第3図 第4図
The drawings show one embodiment of the present invention, and FIG. 1 is a schematic explanatory diagram of the apparatus of the present invention, FIG. 2 is an explanatory diagram showing an example of a water jet apparatus, and FIGS. FIG. 2 is a block diagram for explaining an example of application of the device of the present invention. (10)...Water jet device group old)...Water jet device (14)...Water jet nozzle (15)...
Ultrasonic oscillator (16)...Charging signal generator aη...Ultrasonic oscillator agJ...Charging electrode +14m...Deflection electrode bit...Garter 131)...Water roller Patent applicant Toppan Printing Co., Ltd. Representative Aio Suzuki Figure 3 Figure 4

Claims (1)

【特許請求の範囲】 1)平版印刷機の版胴に装着された印刷版面に湿し水を
付与する湿し水装置において、前記印刷版が装着された
版胴に沿ってこの版胴の回転軸と平行に複数個のウォー
タージェット装置を並設し、このウォータージェット装
置から吐出される粒子化された湿し水を印刷版面に付与
することを特徴とする平版印刷用湿し水装置。 2)前記版胴に当接する水ならし用ローラーを設置した
ことを特徴とする特許請求の範囲第1項記載の平版印刷
用湿し水装置。
[Scope of Claims] 1) In a dampening device that applies dampening water to a printing plate surface mounted on a plate cylinder of a lithographic printing machine, rotation of this plate cylinder along the plate cylinder on which the printing plate is mounted. A dampening water device for lithographic printing, characterized in that a plurality of water jet devices are arranged in parallel with an axis, and granulated dampening water discharged from the water jet devices is applied to a printing plate surface. 2) The dampening water device for lithographic printing according to claim 1, further comprising a leveling roller that comes into contact with the plate cylinder.
JP316884A 1984-01-11 1984-01-11 Dampening water apparatus for planographic printing Pending JPS60147339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP316884A JPS60147339A (en) 1984-01-11 1984-01-11 Dampening water apparatus for planographic printing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP316884A JPS60147339A (en) 1984-01-11 1984-01-11 Dampening water apparatus for planographic printing

Publications (1)

Publication Number Publication Date
JPS60147339A true JPS60147339A (en) 1985-08-03

Family

ID=11549839

Family Applications (1)

Application Number Title Priority Date Filing Date
JP316884A Pending JPS60147339A (en) 1984-01-11 1984-01-11 Dampening water apparatus for planographic printing

Country Status (1)

Country Link
JP (1) JPS60147339A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006075797A (en) * 2004-09-13 2006-03-23 Fuji Photo Film Co Ltd Method and device for controlling moisture content of material to be humidified
EP2554382A1 (en) * 2011-08-05 2013-02-06 Palo Alto Research Center Incorporated Direct application of dampening fluid for a variable data lithographic apparatus
EP2554383A3 (en) * 2011-08-05 2013-10-30 Palo Alto Research Center Incorporated Method for direct application of dampening fluid for a variable data lithographic apparatus
US8991310B2 (en) 2011-04-27 2015-03-31 Palo Alto Research Center Incorporated System for direct application of dampening fluid for a variable data lithographic apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006075797A (en) * 2004-09-13 2006-03-23 Fuji Photo Film Co Ltd Method and device for controlling moisture content of material to be humidified
JP4496901B2 (en) * 2004-09-13 2010-07-07 富士フイルム株式会社 Moisture adjustment device for conditioned moisture
US8991310B2 (en) 2011-04-27 2015-03-31 Palo Alto Research Center Incorporated System for direct application of dampening fluid for a variable data lithographic apparatus
EP2554382A1 (en) * 2011-08-05 2013-02-06 Palo Alto Research Center Incorporated Direct application of dampening fluid for a variable data lithographic apparatus
EP2554383A3 (en) * 2011-08-05 2013-10-30 Palo Alto Research Center Incorporated Method for direct application of dampening fluid for a variable data lithographic apparatus

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