JPH11245381A - Lateral direction printing density control device for printed paper surface - Google Patents
Lateral direction printing density control device for printed paper surfaceInfo
- Publication number
- JPH11245381A JPH11245381A JP10047189A JP4718998A JPH11245381A JP H11245381 A JPH11245381 A JP H11245381A JP 10047189 A JP10047189 A JP 10047189A JP 4718998 A JP4718998 A JP 4718998A JP H11245381 A JPH11245381 A JP H11245381A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- film thickness
- roller
- water
- water film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Rotary Presses (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、オフセット印刷に
おける印刷紙面の横方向印刷濃度制御装置に関するもの
である。とりわけ、画像を構成している印刷された個々
の網点、線の濃度を揃えることで紙面全体の印刷仕上が
りのバラツキを減少させる制御装置である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for controlling the print density in the horizontal direction on the printing paper in offset printing. In particular, it is a control device that reduces the variation in print finish over the entire surface of the paper by aligning the densities of individual printed dots and lines constituting an image.
【０００２】[0002]
【従来の技術】従来の印刷紙面の印刷濃度制御装置とし
て、図２に示すように印刷した後にインキの反射濃度を
測定し、予め設定した管理基準濃度値と比較し基準濃度
値に一致させるように演算処理装置（５５）で制御デー
タを演算し、この制御データをインキキー・インキ元ロ
ーラ制御装置（６５）に転送する。インキキー・インキ
元ローラ制御装置からの制御信号によって印刷濃度が管
理基準濃度が大きい場合には、インキ・キー（１１）の
開度（Ｋ）を小さくしたり、インキ供給装置のインキ元
ローラ（１２）の回転数を減らす動作をさせてインキ供
給量を減少させて印刷濃度を下げ、反対に、印刷濃度が
管理基準濃度が低い場合には、逆にインキ・キー（１
１）の開度（Ｋ）を大きくしたり、インキ供給装置のイ
ンキ元ローラ（１２）の回転数を増やす動作をさせてイ
ンキ供給量を増加させて印刷濃度を上げる処置をして基
準濃度に合わせる制御をしている。2. Description of the Related Art As a conventional printing density control apparatus for printing paper, the reflection density of ink is measured after printing as shown in FIG. 2 and compared with a preset management reference density value so as to match the reference density value. The control data is calculated by the arithmetic processing unit (55), and the control data is transferred to the ink key / ink source roller control unit (65). When the printing density is higher than the control reference density according to the control signal from the ink key / ink source roller control device, the opening degree (K) of the ink key (11) is reduced or the ink source roller (12) of the ink supply device is reduced. ) Is performed to reduce the number of rotations to reduce the ink supply amount and lower the print density. Conversely, if the print density is lower than the control reference density, the ink key (1) is reversed.
1) The opening degree (K) is increased, or the rotation speed of the ink supply roller (12) of the ink supply device is increased to increase the ink supply amount and increase the print density, thereby achieving the reference density. Controls to match.
【０００３】このような濃度制御方法は、１色だけの印
刷時、任意の位置に紙面横移動装置（５５）を移動させ
て任意の位置の印刷濃度を測定することができる。しか
し、多色印刷の場合には、印刷インキが重なっているた
め、各インキＹ，Ｍ，Ｃ，ＢＫインキの反射濃度を分離
して測定することは非常に困難である。In such a density control method, when printing only one color, the printing density at an arbitrary position can be measured by moving the paper lateral movement device (55) to an arbitrary position. However, in the case of multicolor printing, since the printing inks overlap, it is very difficult to separately measure the reflection density of each of the inks Y, M, C, and BK.
【０００４】このために、多色印刷の場合には絵柄が印
刷されていない印刷紙の端に測定用のパッチを設けて、
このパッチの濃度が印刷紙面全体の濃度を代表するもの
として管理している。しかし、このような制御方法だと
印刷紙一枚毎のバラツキはある程度減少させることが可
能であるが、印刷紙面の横方向の反射濃度を揃えるよう
な制御はしていないため、一枚の印刷紙の中で（右端、
中央、左端）濃度が異なって印刷仕上がりが良くない場
合が生じる。For this reason, in the case of multi-color printing, a patch for measurement is provided on the edge of printing paper on which no picture is printed,
The density of this patch is managed as representing the density of the entire printing paper surface. However, with such a control method, it is possible to reduce the variation between printing papers to some extent, but since control is not performed to make the reflection density in the horizontal direction of the printing paper surface uniform, it is not possible to print one printing paper. In the paper (right end,
(Center, left end) Density is different, resulting in poor print finish.
【０００５】[0005]
【発明が解決しようとする課題】本発明は上記の課題に
鑑みてなされたものであり、各インキの印刷ユニットの
インキローラ上のそれぞれ測定すべき画像部に対応する
位置のインキ膜厚、水膜厚の状態に着目して印刷紙面の
横方向の濃度を制御することである。SUMMARY OF THE INVENTION The present invention has been made in consideration of the above problems, and has been made in consideration of the above problems. The purpose is to control the density in the horizontal direction on the printing paper surface by paying attention to the state of the film thickness.
【０００６】[0006]
【課題を解決するための手段】請求項１に記載の本発明
は、インキを供給するインキ元ローラと版にインキを着
けるインキ着肉ローラ間に位置するインキローラの近傍
に該インキローラの軸方向全体に移動可能なローラ軸方
向移動装置に搭載されたインキ膜厚・水膜厚センサー
と、該インキ膜厚・水膜厚センサーで前記インキローラ
上のインキ膜厚と水膜厚を測定した数値と予め設定され
ているインキ膜厚及び水膜厚の管理基準値とを比較し、
上記インキ膜厚と水膜厚を管理基準値に一致させるため
の制御データを演算する演算処理装置と、演算処理装置
からの制御データ信号によりインキ供給装置のインキキ
ーの開度、インキ元ローラの回転数、湿し水装置の水元
ローラの回転数を制御するインキキー・インキ元ローラ
・水元ローラ制御装置と、を具備したことを特徴とする
印刷紙面の横方向印刷濃度制御装置である。According to the first aspect of the present invention, an ink roller shaft is provided near an ink roller located between an ink supply roller for supplying ink and an ink filling roller for applying ink to a plate. The ink film thickness / water film thickness sensor mounted on the roller axis direction moving device movable in the entire direction, and the ink film thickness and the water film thickness on the ink roller were measured by the ink film thickness / water film thickness sensor. Compare the numerical values with the preset control values for the ink film thickness and water film thickness,
An arithmetic processing unit for calculating control data for matching the ink film thickness and the water film thickness to the management reference value, and a control data signal from the arithmetic processing unit for opening an ink key of an ink supply device and rotating an ink source roller. And a control device for controlling the number of rotations of a fountain roller of the fountain solution device, an ink key, an ink fountain roller and a fountain roller.
【０００７】[0007]
【発明の実施の形態】以下、本発明を図１を参照しなが
ら詳細に説明する。インキキー（１１）の開度（Ｋ）と
インキ元ローラ（１２）の回転数（Ｌ）とを変えてイン
キ供給量をコントロールされて印刷インキ（Ａ）はイン
キローラ群（１３）へと転移する。また、インキローラ
群（１３）の下流側にはインキローラ（１４）と版胴
（３０）上刷版（ＰＳ版）にインキを着ける着肉ローラ
（１５）が配置されており、該インキローラ（１４）の
周面を指向してインキ膜厚・水膜厚センサー（４０）が
ローラ軸方向移動装置（４１）により測定点に移動して
該インキローラ（１４）上のインキ膜厚と水膜厚を測定
する。インキロール（１４）からインキ着肉ローラ（１
５）を経て版胴（３０）上の刷版（ＰＳ版）へインキが
転移する。DETAILED DESCRIPTION OF THE INVENTION Hereinafter, the present invention will be described in detail with reference to FIG. The ink supply amount is controlled by changing the opening (K) of the ink key (11) and the rotation speed (L) of the ink source roller (12), and the printing ink (A) transfers to the ink roller group (13). . Downstream of the ink roller group (13), an ink roller (14) and a receiving roller (15) for applying ink to an upper printing plate (PS plate) of the plate cylinder (30) are arranged. The ink film thickness / water film thickness sensor (40) is moved to the measurement point by the roller axial direction moving device (41) by pointing to the peripheral surface of (14), and the ink film thickness / water thickness on the ink roller (14) is changed. Measure the film thickness. Ink roll (1) from ink roll (14)
After 5), the ink is transferred to the printing plate (PS plate) on the plate cylinder (30).
【０００８】一方、湿し水（Ｂ）が湿し水供給装置の水
元ローラ（２１）とのニップ圧により調整されて伝達ロ
ーラ（２２）へ供給される。なお伝達ローラ（２２）に
供給される湿し水量は水元ローラ（２１）の水元ローラ
回転数（Ｍ）を変えることによっても調整可能である。
この伝達ローラ（２２）上の湿し水が水着ローラ（２
３）を経て版胴（３０）上の刷版（ＰＳ版）へ湿し水が
転移する。On the other hand, the dampening water (B) is supplied to the transmission roller (22) after being adjusted by the nip pressure with the water source roller (21) of the dampening water supply device. The amount of dampening water supplied to the transmission roller (22) can also be adjusted by changing the rotation number (M) of the water supply roller (21).
The dampening water on the transmission roller (22) is applied to the swimsuit roller (2).
After 3), the dampening solution is transferred to the printing plate (PS plate) on the plate cylinder (30).
【０００９】また、刷版（ＰＳ版）上に転移したインキ
および湿し水は、刷版（ＰＳ版）上の画線部と非画線部
との界面において相互に付着強さに差があり、この付着
強さの差によりインキが画線部に付着し、湿し水が非画
線部に付着してインキと湿し水とに分かれる。一方、湿
し水はインキ及び湿し水の界面張力と、インキとの乳化
作用とにより、インキローラ群（１３）の方向に流れ
る。このとき、インキローラ（１４）を経由するので、
インキローラ上のインキ膜厚及び水膜厚を測定すること
で間接的に刷版（ＰＳ版）上のインキ及び湿し水の量的
関係を知ることができる。Further, the ink and the fountain solution transferred onto the printing plate (PS plate) have a difference in adhesion strength between the image portion and the non-image portion on the printing plate (PS plate). Due to the difference in the adhesion strength, the ink adheres to the image area, and the dampening solution adheres to the non-image area and is separated into the ink and the dampening solution. On the other hand, the dampening solution flows in the direction of the ink roller group (13) due to the interfacial tension of the ink and the dampening solution and the emulsifying action with the ink. At this time, since the ink passes through the ink roller (14),
By measuring the ink film thickness and the water film thickness on the ink roller, the quantitative relationship between the ink on the printing plate (PS plate) and the dampening solution can be known indirectly.
【００１０】これらインキ及び湿し水の量的関係と印刷
濃度との間には密接な関係があるので、インキ膜厚・水
膜厚センサー（４０）でインキ膜厚および水膜厚を測定
してそれぞれの膜厚を管理基準値に一致させるように制
御する。Since there is a close relationship between the quantitative relationship between the ink and the dampening solution and the print density, the ink film thickness and the water film thickness are measured by the ink film thickness / water film thickness sensor (40). The thickness of each film is controlled so as to be equal to the management reference value.
【００１１】図３は、印刷画像を構成している網点及び
線を模式図にしたものである。図３（ａ）に示すような
円形状の網点、矩形状の画線をＸ軸方向に濃度を測定す
ると、図３（ｂ）の様な印刷濃度（Ｄ）分布が得られ
る。このそれぞれの網点及び線の濃度が基準値になって
いないと印刷紙面全体の濃度がバラツキ、印刷品質が損
なわれる。本発明は、印刷画像の構成要素である網点及
び線等の１個１個の濃度を制御して紙面全体の品質バラ
ツキを少なくすることである。FIG. 3 is a schematic diagram showing halftone dots and lines constituting a print image. When the density of a circular halftone dot or a rectangular image as shown in FIG. 3A is measured in the X-axis direction, a print density (D) distribution as shown in FIG. 3B is obtained. If the densities of these halftone dots and lines are not equal to the reference values, the density of the entire printing paper surface will vary, and print quality will be impaired. An object of the present invention is to control the density of each dot such as a halftone dot and a line, which are components of a print image, so as to reduce the quality variation on the entire paper surface.
【００１２】図４は、インキ膜厚・水膜厚センサー（４
０）でインキローラ（１４）上のインキ膜厚及び水膜厚
と印刷濃度の関係を概念的に図示したものであり、図４
（ａ）は、アート紙に墨インキで印刷する際の水膜厚が
一定（例えば水膜厚１μｍ）の時に、インキ膜厚と印刷
濃度の関係を示したものであり、インキ膜厚が５μｍ近
辺にあれば管理濃度基準値１．６０になっていることを
表している。また、図４（ｂ）はインキ膜厚が一定（例
えばインキ膜厚５μｍ）の時に、水膜厚と印刷濃度の関
係を示したものであり、水膜厚が１μｍ近辺にあれば管
理濃度基準値１．６０を確保できることを表している。
図４（ｃ）は、インキ膜厚を横軸に水膜厚を縦軸にと
り、インキ膜厚と水膜厚が変化した場合の印刷濃度を一
定に保つことができる関係をプロットして示したもので
ある。管理濃度基準値を１．６０に保つには、インキ膜
厚が４．８μｍで水膜厚が０．８μｍであっても良いこ
とを示している。FIG. 4 shows an ink film thickness / water film thickness sensor (4).
0) conceptually illustrates the relationship between the ink film thickness and water film thickness on the ink roller (14) and the print density, and FIG.
(A) shows the relationship between the ink film thickness and the printing density when the water film thickness when printing with art ink on black ink is constant (for example, the water film thickness is 1 μm). If it is in the vicinity, it indicates that the control density reference value is 1.60. FIG. 4B shows the relationship between the water film thickness and the print density when the ink film thickness is constant (for example, the ink film thickness is 5 μm). This indicates that a value of 1.60 can be secured.
FIG. 4 (c) plots the relationship that can keep the printing density constant when the ink film thickness and the water film thickness change, with the ink film thickness on the horizontal axis and the water film thickness on the vertical axis. Things. This shows that the ink film thickness may be 4.8 μm and the water film thickness may be 0.8 μm in order to maintain the control density reference value at 1.60.
【００１３】この事象は上記の墨インキに限ったもので
なく、管理濃度基準値は各インキ毎に設定される数値で
あり、例えば１例として、黄インキの管理濃度基準値は
１．２０（青フィルターを用いて濃度測定）、マゼンタ
インキの管理濃度基準値は１．４５（緑フィルターを用
いて濃度測定）、シアンインキの管理濃度基準値は１．
５０（赤フィルターを用いて濃度測定）である。この管
理濃度基準値は、印刷機械、印刷用紙、印刷インキ等諸
々の条件によって決められるべきものである。また、図
４に示すような関係も印刷機械、印刷用紙、印刷イン
キ、印刷速度等、諸々の条件によって変化するものであ
るから、実験で制御するデータを作成しておき、演算処
理装置（５０）に記憶させておき演算処理する基本デー
タして使用する。This phenomenon is not limited to the above black ink, and the control density reference value is a numerical value set for each ink. For example, as an example, the control density reference value for yellow ink is 1.20 ( The density reference using a blue filter), the control density reference value for magenta ink is 1.45 (the density measurement using a green filter), and the control density reference value for cyan ink is 1.45.
50 (concentration measurement using a red filter). The control density reference value should be determined according to various conditions such as a printing machine, printing paper, and printing ink. Further, since the relationship shown in FIG. 4 also changes depending on various conditions such as a printing machine, printing paper, printing ink, printing speed, etc., data to be controlled in an experiment is prepared, and an arithmetic processing unit (50) is prepared. ) To be used as basic data for arithmetic processing.
【００１４】いま、前述の例のように、インキローラ
（１４）上の水膜厚１μｍ、インキ膜厚が５μｍである
とき管理濃度基準値１．６０で安定して印刷されると実
験的に実証されている場合、印刷中常時測定して、この
膜厚になるようにする。印刷紙面上の測定点に対応する
インキローラ（１４）上の位置にローラ軸方向移動装置
（４１）でインキ膜厚・水膜厚センサー（４０）を移動
させる。このインキローラ（１４）は軸方向に揺動しな
がら回転しているローラでなく、単に回転しているロー
ラであるから、常に印刷紙面上の決まった位置を測定す
ることができる。Now, as in the above-described example, when the water film thickness on the ink roller (14) is 1 μm and the ink film thickness is 5 μm, printing is stably performed at the control density reference value of 1.60 experimentally. If it has been verified, it is measured constantly during printing to achieve this film thickness. The ink film thickness / water film thickness sensor (40) is moved by the roller axial movement device (41) to a position on the ink roller (14) corresponding to the measurement point on the printing paper surface. The ink roller (14) is not a roller that rotates while swinging in the axial direction, but is simply a roller that rotates, so that a fixed position on the printing paper surface can always be measured.
【００１５】インキローラ（１４）上のインキ膜厚・水
膜厚の測定データは演算処理装置（５０）に転送され、
ここで管理基準値と比較、演算しインキキー・インキ元
ローラ・水元ローラ制御装置（６０）に転送される。The measurement data of the ink film thickness and the water film thickness on the ink roller (14) is transferred to the arithmetic processing unit (50).
Here, it is compared with the control reference value, calculated, and transferred to the ink key / ink source roller / water source roller control device (60).
【００１６】水膜厚が大きく測定された場合には、湿し
水の供給量を減少させるように湿し水供給装置の水元ロ
ーラ（２１）の回転数（Ｍ）を減らす処理をする信号を
インキキー・インキ元ローラ・水元ローラ制御装置（６
０）より出力する。また、水膜厚が小さく測定された場
合には、逆に回転数（Ｍ）を増やす信号を出力する。If the water film thickness is measured to be large, a signal for performing processing to reduce the number of revolutions (M) of the water source roller (21) of the dampening water supply device so as to reduce the supply amount of dampening water. To the ink key / ink source roller / water source roller control device (6
0). When the water film thickness is measured to be small, a signal for increasing the rotation speed (M) is output.
【００１７】また、インキ膜厚が大きく測定された場合
には、インキの供給量を減少させるようにインキキー
（１１）の開度（ｋ）を絞ったり、インキ元ローラ（１
２）の回転数（Ｌ）を減らす処理をする信号をインキキ
ー・インキ元ローラ・水元ローラ制御装置（６０）より
出力する。インキ膜厚が小さく測定された場合には、イ
ンキの供給量を増加させるように逆にインキキー（１
１）の開度（ｋ）を広げたり、インキ元ローラ（１２）
の回転数（Ｌ）を増やす処理をする信号をインキキー・
インキ元ローラ・水元ローラ制御装置（６０）より出力
する。When the ink film thickness is measured to be large, the opening degree (k) of the ink key (11) is reduced so as to reduce the ink supply amount, or the ink source roller (1) is opened.
A signal for performing the process of reducing the number of rotations (L) in 2) is output from the ink key / ink source roller / water source roller control device (60). When the ink film thickness is measured to be small, the ink key (1) is reversed to increase the ink supply amount.
1) The degree of opening (k) can be increased or the ink source roller (12)
The signal to increase the rotation speed (L) of the ink key and
Output from the ink source roller / water source roller control device (60).
【００１８】インキ膜厚・水膜厚センサー（４０）は印
刷紙面の横方向の各測定点、すなわち印刷機のインキロ
ーラの軸方向に順次移動させて、上記のような制御を行
いインキ膜厚、水膜厚を調整し各測定点の印刷濃度を揃
える。The ink film thickness / water film thickness sensor (40) is sequentially moved at each measurement point in the lateral direction of the printing paper surface, that is, in the axial direction of the ink roller of the printing press, and the above-described control is performed by performing the above control. And adjust the water film thickness to make the print density at each measurement point uniform.
【００１９】現在のオフセット印刷機の湿し水装置で
は、インキ供給装置のように横方向（幅方向）に供給量
を変えることはできないので、湿し水の制御は、極端に
湿し水の量が多くなったり、少なくなった場合に調整
し、主に測定部分の印刷濃度は、図４（ｃ）に基づいて
インキ供給量を制御することによって調整することにな
る。In the current dampening device of an offset printing press, the supply amount cannot be changed in the horizontal direction (width direction) unlike the ink supply device. Adjustment is performed when the amount increases or decreases, and mainly the print density of the measurement portion is adjusted by controlling the ink supply amount based on FIG. 4C.
【００２０】[0020]
【発明の効果】本発明は、印刷画像を構成している各網
点、線の印刷濃度に注目し、測定点の各網点及び線の濃
度を揃えるために、インキローラ軸方向のインキ膜厚、
水膜厚を制御し、印刷紙面の横方向の濃度バラツキを減
少させることができる。The present invention focuses on the printing density of each halftone dot and line constituting a printed image, and adjusts the density of each halftone dot and line of the measuring point by adjusting the ink film in the axial direction of the ink roller. Thick,
By controlling the water film thickness, it is possible to reduce variations in density in the horizontal direction on the printing paper surface.
【００２１】また、従来の多色印刷における濃度管理方
法では、インキが重なって印刷される部分は、各インキ
の濃度を分離して測定できないために、任意の場所の濃
度を制御、調整することが出来なかった。しかし、本発
明は、印刷機の各ユニットのインキローラ上の管理であ
り、印刷紙面の横方向の任意の場所を測定点とすること
が可能である。また、濃度管理用のパッチを印刷用紙の
端に印刷する必要がない。In the conventional density management method for multicolor printing, the density of each ink is controlled and adjusted at an arbitrary place because the density of each ink cannot be measured separately in a portion where ink is printed. Could not be done. However, the present invention is a management on the ink roller of each unit of the printing press, and it is possible to set an arbitrary location in the lateral direction of the printing paper as a measurement point. Further, there is no need to print the density management patch on the edge of the printing paper.
【００２２】また、従来の印刷紙に印刷された結果に基
づく管理制御方法と異なり、印刷される前の制御である
ため損紙を減少させることができる。Further, unlike the conventional management control method based on the result of printing on a printing paper, since the control is performed before printing, it is possible to reduce waste paper.
【図１】本発明に係る印刷機の印刷紙面の横方向印刷濃
度制御装置を説明する系統図である。FIG. 1 is a system diagram illustrating a horizontal print density control device for a printing paper of a printing press according to the present invention.
【図２】従来の印刷機に係る印刷濃度制御装置を説明す
る系統図である。FIG. 2 is a system diagram illustrating a print density control device according to a conventional printing press.
【図３】（ａ）は、印刷画像を構成している網点、線を
模式的に示した図であり、（ｂ）は、この印刷濃度分布
を表した図である。FIG. 3A is a diagram schematically showing halftone dots and lines constituting a print image, and FIG. 3B is a diagram showing this print density distribution.
【図４】（ａ）は、水膜厚が一定の時のインキ膜厚と印
刷濃度との関係を示すグラフである。（ｂ）は、インキ
膜厚が一定の時の水膜厚と印刷濃度との関係を示すグラ
フである。（ｃ）は、印刷濃度を一定にする時のインキ
膜厚と水膜厚との関係を示すグラフである。FIG. 4A is a graph showing the relationship between the ink film thickness and the print density when the water film thickness is constant. (B) is a graph showing the relationship between the water film thickness and the print density when the ink film thickness is constant. (C) is a graph showing the relationship between the ink film thickness and the water film thickness when the print density is kept constant.
１１…インキキー １２…インキ元ローラ １３…インキローラ群 １４…インキローラ １５…インキ着肉ローラ ２１…湿し水供給装置の水元ローラ ２２…湿し水供給装置の伝達ローラ ２３…水着けローラ ３０…版胴 ３１…ブランケット胴 ３２…圧胴 ３３…印刷紙 ４０…インキ膜厚・水膜厚センサー ４１…ローラ軸方向移動装置 ４５…反射濃度測定器 ４６…紙面横方向移動装置 ５０…演算処理装置 ５５…演算処理装置 ６０…インキキー・インキ元ローラ・水元ローラ制御装
置 ６５…インキキー・インキ元ローラ制御装置 Ａ…印刷インキ Ｂ…湿し水 Ｋ…インキキーの開度 Ｌ…インキ元ローラの回転数 Ｍ…水元ローラの回転数DESCRIPTION OF SYMBOLS 11 ... Ink key 12 ... Ink roller 13 ... Ink roller group 14 ... Ink roller 15 ... Ink filling roller 21 ... Water roller of dampening water supply device 22 ... Transmission roller of dampening water supply device 23 ... Watering roller 30 … Plate cylinder 31… blanket cylinder 32… impression cylinder 33… printing paper 40… ink film thickness / water film thickness sensor 41… roller axial direction moving device 45… reflection density measuring device 46… paper lateral direction moving device 50… arithmetic processing device 55: arithmetic processing unit 60: ink key / ink source roller / water roller control device 65: ink key / ink source roller control device A: printing ink B: dampening solution K: ink key opening L: rotational speed of ink source roller M: Number of rotations of water source roller
Claims (1)
ンキを着けるインキ着肉ローラ間に位置するインキロー
ラの近傍に該インキローラの軸方向全体に移動可能なロ
ーラ軸方向移動装置に搭載されたインキ膜厚・水膜厚セ
ンサーと、 該インキ膜厚・水膜厚センサーで前記インキローラ上の
インキ膜厚と水膜厚を測定した数値と予め設定されてい
るインキ膜厚及び水膜厚の管理基準値とを比較し、上記
インキ膜厚と水膜厚を管理基準値に一致させるための制
御データを演算する演算処理装置と、 演算処理装置からの制御データ信号によりインキ供給装
置のインキキーの開度、インキ元ローラの回転数、湿し
水装置の水元ローラの回転数を制御するインキキー・イ
ンキ元ローラ・水元ローラ制御装置と、を具備したこと
を特徴とする印刷紙面の横方向印刷濃度制御装置。1. A roller axial moving device which is movable in the entire axial direction of an ink roller near an ink roller positioned between an ink source roller for supplying ink and an ink filling roller for applying ink to a plate. The ink film thickness / water film thickness sensor, and the ink film thickness / water film thickness set on the ink roller and the water film thickness measured by the ink film thickness / water film thickness sensor and the preset ink film thickness / water film thickness An arithmetic processing unit for comparing the ink film thickness and the water film thickness with the control standard value, and calculating control data for matching the ink film thickness and the water film thickness with the control standard value; and an ink key of the ink supply device based on a control data signal from the arithmetic processing unit. A printing device, comprising: an ink key, an ink source roller, and a water source roller control device for controlling the opening degree of the ink source roller, the rotation speed of the ink source roller, and the rotation speed of the water source roller of the dampening water device. Lateral print density control apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10047189A JPH11245381A (en) | 1998-02-27 | 1998-02-27 | Lateral direction printing density control device for printed paper surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10047189A JPH11245381A (en) | 1998-02-27 | 1998-02-27 | Lateral direction printing density control device for printed paper surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11245381A true JPH11245381A (en) | 1999-09-14 |
Family
ID=12768173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10047189A Pending JPH11245381A (en) | 1998-02-27 | 1998-02-27 | Lateral direction printing density control device for printed paper surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11245381A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001179943A (en) * | 1999-12-24 | 2001-07-03 | Toppan Printing Co Ltd | Halftone dot inking controller and method for controlling halftone dot inking by the controller |
| JP2005262474A (en) * | 2004-03-16 | 2005-09-29 | Toppan Printing Co Ltd | Offset printing method and device |
| DE102008007272A1 (en) * | 2008-02-01 | 2009-08-06 | Manroland Ag | Printing machine, as well as methods for adjusting the color and dampening settings |
| JP2011506137A (en) * | 2007-12-12 | 2011-03-03 | マンローラント・アーゲー | Driving cold film assembly with adhesive application |
| JP2013103503A (en) * | 2011-11-11 | 2013-05-30 | Heiderberger Druckmaschinen Ag | Method for informing coloring state when operation state changes in printer |
-
1998
- 1998-02-27 JP JP10047189A patent/JPH11245381A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001179943A (en) * | 1999-12-24 | 2001-07-03 | Toppan Printing Co Ltd | Halftone dot inking controller and method for controlling halftone dot inking by the controller |
| JP2005262474A (en) * | 2004-03-16 | 2005-09-29 | Toppan Printing Co Ltd | Offset printing method and device |
| JP4586387B2 (en) * | 2004-03-16 | 2010-11-24 | 凸版印刷株式会社 | Offset printing method and apparatus |
| JP2011506137A (en) * | 2007-12-12 | 2011-03-03 | マンローラント・アーゲー | Driving cold film assembly with adhesive application |
| DE102008007272A1 (en) * | 2008-02-01 | 2009-08-06 | Manroland Ag | Printing machine, as well as methods for adjusting the color and dampening settings |
| JP2013103503A (en) * | 2011-11-11 | 2013-05-30 | Heiderberger Druckmaschinen Ag | Method for informing coloring state when operation state changes in printer |
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