JP2001302044A - Method and device for winding photosensitive lithography block - Google Patents
Method and device for winding photosensitive lithography blockInfo
- Publication number
- JP2001302044A JP2001302044A JP2000121000A JP2000121000A JP2001302044A JP 2001302044 A JP2001302044 A JP 2001302044A JP 2000121000 A JP2000121000 A JP 2000121000A JP 2000121000 A JP2000121000 A JP 2000121000A JP 2001302044 A JP2001302044 A JP 2001302044A
- Authority
- JP
- Japan
- Prior art keywords
- winding
- tension
- printing plate
- lithographic printing
- 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
Links
Landscapes
- Printing Plates And Materials Therefor (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
- Winding Of Webs (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、アルミニウムを支
持体として連続走行する感光性平版印刷版（以下「ウェ
ブ」という）の巻取り方法及び巻取装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a device for winding a photosensitive lithographic printing plate (hereinafter referred to as "web") which continuously runs on aluminum as a support.
【０００２】[0002]
【従来の技術】図５に示すように、ウェブの製造ライン
は、表面処理工程４２、塗布工程４４、及び乾燥工程４
６から構成されており、アルミニウム製の支持体である
帯状金属板（以下「ウェブＷ」という）が、コイルに巻
かれた状態から送り出し装置４８によって表面処理工程
４２へ搬送され、この後、塗布工程４４及び乾燥工程４
６を経て巻取り装置５０に巻き取られる。2. Description of the Related Art As shown in FIG. 5, a web production line includes a surface treatment step 42, a coating step 44, and a drying step 4.
A strip-shaped metal plate (hereinafter, referred to as a “web W”), which is a support made of aluminum, is transported to a surface treatment step 42 by a delivery device 48 from a state of being wound around a coil. Step 44 and drying step 4
The film is wound up by the winding device 50 through 6.
【０００３】一般に、巻取り装置５０におけるウェブＷ
の巻取りは、巻取り装置５０の巻取りモータ５４に負荷
されるトルクが能力以上とならないように、巻取り径が
小さいときは（巻き始め）巻取り張力を大きく、巻取り
径が大きくなると巻取り張力が小さくなるように設定さ
れている（図６に示すグラフが従来の張力パターン）。[0003] Generally, the web W
In order to prevent the torque applied to the winding motor 54 of the winding device 50 from exceeding the capacity, the winding tension is increased when the winding diameter is small (at the beginning of winding), and the winding tension is increased when the winding diameter is increased. The winding tension is set to be small (the graph shown in FIG. 6 is a conventional tension pattern).
【０００４】しかし、グラフで示すような張力パターン
（張力と巻径との関係）では、巻芯部でウェブの面圧が
高くなり、裏面（感光層が形成されていない面）と表面
の感光層が圧着され、潰れたマットが感光層に付着して
感光層を剥離させる。逆に、巻芯部でウェブの面圧を低
くすると、感光層の剥離は防ぐことができるが、巻きズ
レが生じる等の問題がある。However, in the tension pattern (the relationship between the tension and the winding diameter) as shown in the graph, the surface pressure of the web increases at the core portion, and the back surface (the surface on which the photosensitive layer is not formed) and the front surface are exposed. The layers are crimped and the crushed mat adheres to the photosensitive layer to release the photosensitive layer. Conversely, if the surface pressure of the web is reduced at the core portion, peeling of the photosensitive layer can be prevented, but there are problems such as occurrence of winding deviation.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、ウェブの特
性に応じて張力パターンを工夫することで、面圧増加に
よる感光層の剥離、面圧減少による巻きズレの発生を防
止することを課題とする。SUMMARY OF THE INVENTION It is an object of the present invention to prevent peeling of a photosensitive layer due to an increase in surface pressure and occurrence of winding deviation due to a decrease in surface pressure by devising a tension pattern according to the characteristics of a web. And
【０００６】[0006]
【課題を解決するための手段】請求項１に記載の発明
は、連続走行する感光性平版印刷版が巻き取られるとき
の巻取り張力と巻径の関係に特徴がある。The invention according to claim 1 is characterized by a relationship between a winding tension and a winding diameter when a photosensitive lithographic printing plate which is continuously running is wound.
【０００７】すなわち、初期巻取り張力は、巻芯部の面
圧で感光性平版印刷版の感光層に剥離が生じない大きさ
とされているが、このままの状態で感光性平版印刷版を
巻き取ってしまうと巻きズレが生じてしまう。That is, the initial winding tension is set to a value such that the photosensitive layer of the photosensitive lithographic printing plate does not peel off due to the surface pressure of the core, but the photosensitive lithographic printing plate is wound up as it is. If it does, the winding shift will occur.
【０００８】そこで、初期巻取り張力とは別に上乗せ張
力が上乗せされる。この上乗せ張力は、感光性平版印刷
版の特性に応じて決められた上乗せ終了径になると解除
される。Accordingly, an additional tension is added separately from the initial winding tension. The additional tension is released when the additional end diameter is determined according to the characteristics of the photosensitive lithographic printing plate.
【０００９】この結果、巻き取られた感光性平版印刷版
に巻きズレが発生せず、感光層の剥離も生じない。As a result, no winding deviation occurs in the wound photosensitive lithographic printing plate, and no peeling of the photosensitive layer occurs.
【００１０】また、テーパーを調整することで、感光性
平版印刷版の巻径の増加に伴い、巻取りモータのトルク
能力がオーバーしないように巻取り張力を減少させる割
合を決める。[0010] Further, by adjusting the taper, the rate at which the winding tension is reduced so that the torque capacity of the winding motor does not exceed with the increase in the winding diameter of the photosensitive lithographic printing plate is determined.
【００１１】このように、感光性平版印刷版の張力パタ
ーン（張力と巻径の関係）を、初期巻取り張力、テーパ
ー、上乗せ張力、及び上乗せ終了径の各制御因子で決定
することで、感光性平版印刷版の特性に応じた多種多様
な張力パターンを実現できるので、感光性平版印刷版に
剥がれや巻きズレが発生しない。As described above, the tension pattern (the relationship between the tension and the winding diameter) of the photosensitive lithographic printing plate is determined by the control factors of the initial winding tension, the taper, the additional tension, and the additional end diameter. Since a wide variety of tension patterns according to the characteristics of the photosensitive lithographic printing plate can be realized, the photosensitive lithographic printing plate will not be peeled off or misaligned.
【００１２】請求項２に記載の発明では、初期巻取り張
力が一定に維持される巻径の大きさを示すコーナー径を
調整することで、巻取りモータの能力トルクの範囲内
で、巻きズレと感光層の剥離を防止することができる。According to the second aspect of the present invention, by adjusting the corner diameter indicating the magnitude of the winding diameter at which the initial winding tension is maintained constant, the winding deviation is maintained within the range of the torque of the winding motor. And peeling of the photosensitive layer can be prevented.
【００１３】請求項３に記載の発明では、巻取り張力を
発生する巻取りモータの能力トルク範囲内で、連続走行
する感光性平版印刷版が巻き取れる。また、巻き取られ
る感光性平版印刷版の張力は、張力可変手段によって可
変される。According to the third aspect of the present invention, the photosensitive lithographic printing plate running continuously can be wound within the capability torque range of the winding motor that generates winding tension. Further, the tension of the photosensitive lithographic printing plate to be wound is changed by a tension changing means.
【００１４】ここで、巻径と張力との関係で決定された
張力パターンは、感光性平版印刷版の感光層に剥離が発
生せず、また巻きズレが発生しないように、つくられて
いる。Here, the tension pattern determined based on the relationship between the winding diameter and the tension is designed so that the photosensitive layer of the photosensitive lithographic printing plate does not peel off and the winding does not shift.
【００１５】この張力パターンとなるように、巻径検出
手段及び張力検出手段の検出結果に基づき、制御手段に
より、巻取りモータの能力トルク範囲内で巻取りモータ
及び張力可変手段が制御される。Based on the detection results of the winding diameter detecting means and the tension detecting means, the control means controls the winding motor and the variable tension means within the capability torque range of the winding motor so that the tension pattern is obtained.
【００１６】[0016]
【発明の実施の形態】以下、図１を参照して本実施の形
態に係る感光性平版印刷版の巻取り装置を説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an apparatus for winding a photosensitive lithographic printing plate according to the present embodiment will be described with reference to FIG.
【００１７】巻取り装置１０は巻取りロール１２を備え
ており、この巻取りロール１２が電動式の巻取りモータ
３２によって回転され、ウェブＷを巻き取っていく。巻
取りモータ３２は、電流調整器３６及びサイリスタ３８
を介して出力された電気信号Ｖ２により回転トルクが制
御される。電気信号Ｖ２は、巻取り張力パターンに基づ
いて連続的に変化する張力に対応できるように、張力基
準発生回路４０から出力される。The winding device 10 is provided with a winding roll 12, which is rotated by an electric winding motor 32 and winds the web W. The winding motor 32 includes a current regulator 36 and a thyristor 38.
The rotational torque is controlled by the electric signal V2 output through the controller. The electric signal V2 is output from the tension reference generation circuit 40 so as to be able to cope with a tension that continuously changes based on the winding tension pattern.
【００１８】また、巻取りロール１２には、エンコーダ
５６が取付けられており、巻取りロール１２の回転数を
検出して、マイコン５８へ出力する。この巻取りロール
１２の回転数とウェブＷの板厚からウェブＷの巻径が算
出される。An encoder 56 is attached to the take-up roll 12, and detects the number of rotations of the take-up roll 12 and outputs it to the microcomputer 58. The winding diameter of the web W is calculated from the rotation speed of the winding roll 12 and the thickness of the web W.
【００１９】また、巻取り装置１０の上流側には、ブラ
イドルローラＡ、Ｂが配置され、それぞれ電動機Ｍ１、
Ｍ２によって所定のトルクで駆動される。On the upstream side of the winding device 10, bridle rollers A and B are arranged.
M2 is driven at a predetermined torque.
【００２０】このブライドルローラＡ、Ｂのトルクは、
ウェブＷの走行速度を示す速度基準信号とロータリーエ
ンコーダ１４、１６が検出した電動機Ｍ１、Ｍ２の回転
速度を示す検出信号が、速度調節器１８、２０及びサイ
リスタ２２、２４を介して電動機Ｍ１、Ｍ２へ送られる
ことで制御される。The torque of the bridle rollers A and B is
A speed reference signal indicating the traveling speed of the web W and a detection signal indicating the rotation speed of the electric motors M1 and M2 detected by the rotary encoders 14 and 16 are transmitted to the electric motors M1 and M2 via the speed controllers 18 and 20 and the thyristors 22 and 24. It is controlled by being sent to.
【００２１】なお、ブライドルローラＡ、Ｂは、ウェブ
の張力を負担してカットし、走行方向前後に張力差を持
たせることで、各工程毎に定められた張力をウェブに与
えるものである。The bridle rollers A and B cut the web while bearing the tension of the web, and apply a predetermined tension to each web by giving a difference in tension between the front and rear in the running direction.
【００２２】一方、ブライドルローラＢ側には、ダンサ
ローラ２６が配置されている。ダンサローラ２６は、ウ
ェブＷに付与する張力を調整するもので、圧縮空気の圧
力によって駆動するエアシリンダー２８で昇降する。On the other hand, a dancer roller 26 is disposed on the bridle roller B side. The dancer roller 26 adjusts the tension applied to the web W, and moves up and down by an air cylinder 28 driven by the pressure of compressed air.
【００２３】このエアシリンダー２８には、空電変換器
３０が接続されている。空電変換器３０は、マイコン５
８から出力された電気信号を、それに対応した圧力の圧
縮空気に変換してエアシリンダー２８へ供給する。これ
により、ダンサローラ２６が昇降して、巻取りロール１
２へ巻き取られるウェブＷの張力を連続的に可変させ
る。A static converter 30 is connected to the air cylinder 28. The static electricity converter 30 includes the microcomputer 5
The electric signal output from 8 is converted into compressed air having a pressure corresponding to the electric signal and supplied to the air cylinder 28. As a result, the dancer roller 26 moves up and down to take up the winding roll 1.
The tension of the web W wound up into the web 2 is continuously varied.
【００２４】また、ブライドルローラＡと巻取りロール
１２の間には、張力計３４が配置されている。この張力
計３４でウェブＷの巻取り張力が測定され、マイコン５
８でフィードバック制御される。A tension meter 34 is arranged between the bridle roller A and the take-up roll 12. The winding tension of the web W is measured by the tension meter 34,
8, feedback control is performed.
【００２５】上述した構成において、本発明では、図２
の表、及び図３のグラフに示すように、巻取り張力のパ
ターンを、初期巻取り張力（Ｎ）、テーパー（％）、コ
ーナ（ｍｍ）、上乗せ張力（Ｎ）、及び上乗せ終了径
（ｍｍ）の５つの制御因子で決定している。According to the present invention, in the above-described configuration, FIG.
3 and the graph of FIG. 3, the winding tension pattern was determined based on the initial winding tension (N), taper (%), corner (mm), added tension (N), and added end diameter (mm). ) Are determined by the five control factors.
【００２６】ここで、具体的な例を挙げて、の張力パ
ターンに基づいたウェブの巻取り方法を説明する。Here, a web winding method based on the tension pattern will be described with reference to a specific example.
【００２７】ウェブ（感光性平版印刷版で感光層の表面
にマット層が形成されている）の幅Ｂが１０６０ｍｍ、
厚みｔが０．３０ｍｍのとき、初期の巻取り径（ほぼ巻
取りロール１２の径）が３００ｍｍ、初期巻取り張力の
大きさを４０００Ｎとする。The width B of the web (a mat layer is formed on the surface of the photosensitive layer in the photosensitive lithographic printing plate) is 1060 mm,
When the thickness t is 0.30 mm, the initial winding diameter (almost the diameter of the winding roll 12) is 300 mm, and the magnitude of the initial winding tension is 4000 N.
【００２８】ここで、初期巻取り張力は、幅Ｂ×厚みｔ
に応じて決定され、具体的な数字として、単位面積当た
りの初期巻取り張力の大きさは、８〜２０Ｎ／ｍｍ2の
範囲内に設定される。Here, the initial winding tension is: width B × thickness t
The magnitude of the initial winding tension per unit area is set in a range of 8 to 20 N / mm 2 as specific numbers.
【００２９】図４のグラフに示すように、２０Ｎ／ｍｍ
2以上になると、面圧が高くなり感光層の剥離（圧力か
ぶり発生）が起きる。また、８Ｎ／ｍｍ2以下になると
ウェブの巻きズレが発生する。なお、光重合性平版印刷
版及び感熱性平版印刷版を巻き取る場合、単位面積当た
りの初期巻取り張力の大きさは、１．５〜３．０Ｎ／ｍ
ｍ2に設定するのが望ましい。As shown in the graph of FIG.
If it is 2 or more, the surface pressure increases and the photosensitive layer peels (pressure fogging occurs). In addition, when the thickness is less than 8 N / mm 2 , a web displacement occurs. When winding the photopolymerizable lithographic printing plate and the heat-sensitive lithographic printing plate, the magnitude of the initial winding tension per unit area is 1.5 to 3.0 N / m.
It is desirable to set m 2 .
【００３０】また、以上の初期巻取り張力の大きさは、
当然に巻取りモータ３２がトルクオーバーしない大きさ
であることが条件となる。The magnitude of the initial winding tension is as follows:
Naturally, the condition is that the winding motor 32 has such a size that the torque is not exceeded.
【００３１】そして、上記のような初期巻取り張力の大
きさでは、巻きズレが生じるため、５００Ｎの上乗せ張
力を加算し、上乗せ終了径：４００ｍｍまで一定の勾配
で上乗せ張力を解除していく。これにより、巻き始めの
面圧を上げることができ、巻きズレを抑えることができ
る。なお、上乗せ終了径と巻取りロール１２の径との比
は、上乗せ終了径／巻取りロール径＝１．３〜２．０が
望ましい。Since the initial winding tension as described above causes a winding deviation, the additional tension of 500 N is added, and the additional tension is released at a constant gradient up to an additional diameter of 400 mm. As a result, the surface pressure at the start of winding can be increased, and winding deviation can be suppressed. In addition, the ratio of the additional finishing diameter to the diameter of the take-up roll 12 is desirably 1.3 to 2.0, ie, the additional finishing diameter / winding roll diameter.
【００３２】また、テーパーは５０％に設定されてお
り、巻径が１２００ｍｍになるまでに２０００Ｎの巻取
り張力に減少される。これにより、巻取りモータ３２を
トルクオーバーさせないですむ。The taper is set to 50%, and the winding tension is reduced to 2000 N before the winding diameter becomes 1200 mm. Thereby, the torque of the winding motor 32 does not need to be increased.
【００３３】なお、上述した張力パターンは、エンコー
ダ５６で検出された巻取りロール１２の回転数からウェ
ブＷの巻径を算出し、ダンサローラ２６及びブライドル
ローラＡ、ＢでウェブＷに付与される張力が調整され
る。The above-mentioned tension pattern is obtained by calculating the winding diameter of the web W from the number of revolutions of the winding roll 12 detected by the encoder 56, and applying the tension applied to the web W by the dancer roller 26 and the bridle rollers A and B. Is adjusted.
【００３４】ここで、図２の表と図３のグラフを参照し
て、他の張力パターンを説明する。Now, another tension pattern will be described with reference to the table of FIG. 2 and the graph of FIG.
【００３５】は従来方式の張力パターンを示してお
り、初期の巻径：３００ｍｍから終期の巻径：１２００
ｍｍまで、初期巻取り張力：４０００Ｎからテーパー５
０％で終期巻取り張力：２０００Ｎまで減少している。
この張力パターンでは、ウェブに巻きズレが発生した。A tension pattern of the conventional method is shown, where the initial winding diameter is 300 mm and the final winding diameter is 1200.
mm, initial winding tension: 4000N to taper 5
At 0%, the final winding tension: decreased to 2000 N.
In this tension pattern, the web was displaced by winding.
【００３６】は初期巻取り張力を４０００Ｎとし、テ
ーパーを０％として巻取り張力を一定としたもので、上
乗せ張力は加算せず、巻取りモータがトルクオーバーし
ない範囲とした。この張力パターンでは、巻きズレ、感
光層の剥がれが生じない。The initial winding tension was 4000 N, the taper was 0%, and the winding tension was constant. The additional tension was not added, and the winding motor was in a range where the torque was not exceeded. With this tension pattern, no winding displacement and no peeling of the photosensitive layer occur.
【００３７】は初期巻取り張力を４０００Ｎとし、テ
ーパーを５０％、コーナー径を５００ｍｍとして巻取り
張力を一定としたもので、上乗せ張力は加算せず、巻取
りモータがトルクオーバーしない範囲とした。この張力
パターンでは、巻きズレ、感光層の剥がれが生じない。The initial winding tension was 4000 N, the taper was 50%, the corner diameter was 500 mm, and the winding tension was constant. The additional tension was not added, and the winding motor was in a range where the torque was not exceeded. With this tension pattern, no winding displacement and no peeling of the photosensitive layer occur.
【００３８】は初期巻取り張力を４０００Ｎとし、テ
ーパーを５０％、上乗せ張力１０００Ｎを加算して上乗
せ終了径を５００ｍｍとした。この張力パターンでは、
巻きズレ、感光層の剥がれが生じない。The initial winding tension was 4000 N, the taper was 50%, the additional tension 1000 N was added, and the additional diameter was 500 mm. In this tension pattern,
No winding deviation or peeling of the photosensitive layer occurs.
【００３９】以上のように、張力パターンを初期巻取り
張力（Ｎ）、テーパー（％）、コーナ（ｍｍ）、上乗せ
張力（Ｎ）、及び上乗せ終了径（ｍｍ）の５つの制御因
子で構成することで、巻きズレ、感光層の剥がれが生じ
ない。As described above, the tension pattern is constituted by the five control factors of the initial winding tension (N), the taper (%), the corner (mm), the additional tension (N), and the additional end diameter (mm). As a result, winding deviation and peeling of the photosensitive layer do not occur.
【００４０】なお、初期巻取り張力（Ｎ）の一例として
は、１０００〜１００００Ｎ、テーパー（％）：０〜１
００％、コーナ（ｍｍ）：３００〜１５００、上乗せ張
力（Ｎ）：０〜５０００Ｎ、及び上乗せ終了径（ｍ
ｍ）：３００〜１５００の範囲内で選択的に組合せるこ
とができる。As an example of the initial winding tension (N), 1000 to 10000 N, taper (%): 0 to 1
00%, corner (mm): 300 to 1500, additional tension (N): 0 to 5000 N, and additional end diameter (m
m): Can be selectively combined within the range of 300 to 1500.
【００４１】ここで、ＰＳ版の製造工程の概略を説明す
る。Here, the outline of the production process of the PS plate will be described.
【００４２】ＰＳ版は、９９．５重量％アルミニウム
に、銅を０．０１重量％、チタンを０．０３重量％、鉄
を０．３重量％、ケイ素を０．１重量％含有するＪＩＳ
―Ａ１０５０アルミニウム材の厚み０．３０ｍｍ圧延板
を、４００メッシュのパミストン（共立窯業製）の２０
重量％水性懸濁液と、回転ナイロンブラシ（６，１０−
ナイロン）とを用いてその表面を砂目立てした後、よく
水で洗浄した。The PS plate is a JIS containing 99.5% by weight of aluminum, 0.01% by weight of copper, 0.03% by weight of titanium, 0.3% by weight of iron, and 0.1% by weight of silicon.
-A1050 rolled sheet of aluminum material with a thickness of 0.30 mm was converted to 400 mesh pumice stone (manufactured by Kyoritsu Ceramics).
Weight percent aqueous suspension and a rotating nylon brush (6,10-
(Nylon) and the surface was grained, and then washed well with water.
【００４３】これを１５重量％水酸化ナトリウム水溶液
（アルミニウム４．５重量％含有）に浸漬してアルミニ
ウムの溶解量が５ｇ／ｍ2 になるようにエッチングした
後、流水で水洗した。さらに、１重量％硝酸で中和し、
次に０．７重量％硝酸水溶液（アルミニウム０．５重量
％含有）中で、陽極時電圧１０．５ボルト、陰極時電圧
９．３ボルトの矩形波交番波形電圧（電流比ｒ＝０．９
０、特公昭５８−５７９６号公報実施例に記載されてい
る電流波形）を用いて１６０クーロン／ｄｍ2の陽極時
電気量で電解粗面化処理を行った。水洗後、３５℃の１
０重量％水酸化ナトリウム水溶液中に浸漬して、アルミ
ニウム溶解量が１ｇ／ｍ2 になるようにエッチングした
後、水洗した。次に、５０℃３０重量％の硫酸水溶液中
に浸漬し、デスマットした後、水洗した。This was immersed in a 15% by weight aqueous solution of sodium hydroxide (containing 4.5% by weight of aluminum), etched so that the amount of aluminum dissolved was 5 g / m 2 , and washed with running water. Furthermore, neutralize with 1% by weight nitric acid,
Next, in a 0.7% by weight nitric acid aqueous solution (containing 0.5% by weight of aluminum), a rectangular wave alternating waveform voltage (current ratio r = 0.9) having an anode voltage of 10.5 volts and a cathode voltage of 9.3 volts was used.
0, a current waveform described in Examples of JP-B-58-5796), and an electrolytic surface roughening treatment was carried out at an anode electricity amount of 160 coulomb / dm 2 . After washing with water,
It was immersed in a 0% by weight aqueous sodium hydroxide solution, etched so that the amount of aluminum dissolved was 1 g / m 2 , and washed with water. Next, it was immersed in a 50% by weight aqueous solution of 30% by weight sulfuric acid, desmutted, and washed with water.
【００４４】さらに、３５℃の硫酸２０重量％水溶液
（アルミニウム０．８重量％含有）中で直流電流を用い
て、多孔性陽極酸化皮膜形成処理を行った。すなわち電
流密度１３Ａ／ｄｍ2 で電解を行い、電解時間の調節に
より陽極酸化皮膜重量２．７ｇ／ｍ2 とした。ジアゾ樹
脂と結合剤を用いたネガ型感光性平版印刷版を作成する
為に、この支持体を水洗後、７０℃のケイ酸ナトリウム
の３重量％水溶液に３０秒間浸漬処理し、水洗乾燥し
た。Further, a porous anodic oxide film forming treatment was carried out in a 20% by weight aqueous sulfuric acid solution (containing 0.8% by weight of aluminum) at 35 ° C. using a direct current. That is, electrolysis was performed at a current density of 13 A / dm 2 , and the anodic oxide film weight was adjusted to 2.7 g / m 2 by adjusting the electrolysis time. To prepare a negative photosensitive lithographic printing plate using a diazo resin and a binder, the support was washed with water, immersed in a 3% by weight aqueous solution of sodium silicate at 70 ° C. for 30 seconds, washed with water and dried.
【００４５】以上のようにして得られたアルミニウム支
持体は、マクベスＲＤ９２０反射濃度計で測定した反射
濃度は０．３０で、ＪＩＳ Ｂ００６０１に規定する中
心線平均粗さＲaは０．５８μｍであった。[0045] The thus-obtained aluminum support, reflection density was measured with Macbeth RD920 reflection densitometer 0.30, the center line average roughness R a as defined in JIS B00601 is 0.58μm met Was.
【００４６】次に上記支持体にメチルメタクリレート／
エチルアクリレート／２−アクリルアミド−２−メチル
プロパンスルホン酸ナトリウム共重合体（平均分子量約
６万）（モル比５０／３０／２０）の１．０重量％水溶
液をロールコーターにより乾燥後の塗布量が０．０５ｇ
／ｍ2 になるように塗布した。Next, methyl methacrylate /
A 1.0% by weight aqueous solution of ethyl acrylate / 2-acrylamide-2-methylpropane sodium sulfonate copolymer (average molecular weight: about 60,000) (molar ratio: 50/30/20) was dried by a roll coater to obtain an applied amount of 1.0% by weight. 0.05g
/ M 2 .
【００４７】さらに、下記感光液−１をバーコーターを
用いて塗布し、１１０℃で４５秒間乾燥させた。乾燥塗
布量は２．０ｇ／ｍ2 であった。 感光液−１ ジアゾ樹脂−１ ０．５０ｇ 結合剤−１ ５．００ｇ スチライトＨＳ−２（大同工業(株)製） ０．１０ｇ ビクトリアピュアブルーＢＯＨ ０．１５ｇ トリクレジルホスフェート ０．５０ｇ ジピコリン酸 ０．２０ｇ ＦＣ−４３０（３Ｍ社製界面活性剤） ０．０５ｇ 溶剤 １−メトキシ−２−プロパノール ２５．００ｇ 乳酸メチル １２．００ｇ メタノール ３０．００ｇ メチルエチルケトン ３０．００ｇ 水 ３．００ｇ 上記のジアゾ樹脂―１は、次ぎのようにして得たもので
ある。まず、４−ジアゾジフェニルアミン硫酸塩（純度
９９．５％）２９．４ｇを２５℃にて、９６％硫酸７０
ｍｌに徐々に添加し、かつ２０分間攪拌した。これに、
パラホルムアルデヒド（純度９２％）３．２６ｇを約１
０分かけて徐々に添加し、該混合物を３０℃にて、４時
間攪拌し、縮合反応を進行させた。なお、上記ジアゾ化
合物とホルムアルデヒドとの縮合モル比は１：１であ
る。この反応生成物を攪拌しつつ氷水２リットル中に注
ぎ込み、塩化ナトリウム１３０ｇを溶解した冷濃厚水溶
液で処理した。この沈澱物を吸引濾過により回収し、部
分的に乾燥した固体を１リットルの水に溶解し、濾過
し、氷で冷却し、かつ、ヘキサフルオロリン酸カリ２３
ｇを溶解した水溶液で処理した。最後に、この沈澱物を
濾過して回収し、かつ風乾して、ジアゾ樹脂−１ｇを得
た。Further, the following photosensitive solution-1 was applied using a bar coater and dried at 110 ° C. for 45 seconds. The dry coating amount was 2.0 g / m 2 . Photosensitive solution-1 Diazo resin-1 0.50 g Binder-1 5.00 g Stylite HS-2 (manufactured by Daido Kogyo Co., Ltd.) 0.10 g Victoria Pure Blue BOH 0.15 g Tricresyl phosphate 0.50 g Dipicolinic acid 0 .20 g FC-430 (Surfactant manufactured by 3M) 0.05 g Solvent 1-methoxy-2-propanol 25.00 g Methyl lactate 12.00 g Methanol 30.00 g Methyl ethyl ketone 30.00 g Water 3.00 g The above diazo resin-1 Is obtained as follows. First, 29.4 g of 4-diazodiphenylamine sulfate (purity: 99.5%) was added at 25 ° C to 96% sulfuric acid 70%.
ml and stirred for 20 minutes. to this,
3.26 g of paraformaldehyde (purity 92%)
The mixture was gradually added over 0 minutes, and the mixture was stirred at 30 ° C. for 4 hours to allow the condensation reaction to proceed. The condensation molar ratio between the diazo compound and formaldehyde is 1: 1. The reaction product was poured into 2 liters of ice water with stirring, and treated with a cold concentrated aqueous solution in which 130 g of sodium chloride was dissolved. The precipitate is collected by suction filtration, the partially dried solid is dissolved in one liter of water, filtered, cooled on ice and washed with potassium hexafluorophosphate 23.
g was dissolved in an aqueous solution. Finally, the precipitate was collected by filtration and air-dried to obtain 1 g of diazo resin.
【００４８】結合剤−１は、２−ヒドロキシエチルメタ
クリレート／アクリロニトリル／メチルメタクリレート
／メタクリル酸共重合体（重量比５０／２０／２６／
４、平均分子量７５，０００、酸含量０．４ｍｅｑ／
ｇ）の水不溶性、アルカリ水可溶性の皮膜形成性高分子
である。Binder-1 was 2-hydroxyethyl methacrylate / acrylonitrile / methyl methacrylate / methacrylic acid copolymer (weight ratio 50/20/26 /
4, average molecular weight 75,000, acid content 0.4 meq /
g) is a water-insoluble, alkaline water-soluble film-forming polymer.
【００４９】スチライトＨＳ−２（大同工業(株)製）
は、結合剤よりも感脂性の高い高分子化合物であって、
スチレン／マレイン酸モノ−４−メチル−２−ペンチル
エステル＝５０／５０（モル比）の共重合体であり、平
均分子量は約１００，０００であった。Stylite HS-2 (manufactured by Daido Industry Co., Ltd.)
Is a polymer compound having a higher oil sensitivity than the binder,
It was a copolymer of styrene / mono-4-methyl-2-pentyl maleate = 50/50 (molar ratio), and the average molecular weight was about 100,000.
【００５０】[0050]
【発明の効果】本発明は上記構成としたので、多種多様
な張力パターンを構成することができ、面圧増加による
感光層の剥離、面圧減少による巻きズレの発生を防止す
ることができる。Since the present invention has the above-described structure, it is possible to form various tension patterns, and it is possible to prevent peeling of the photosensitive layer due to an increase in surface pressure and occurrence of winding deviation due to decrease in surface pressure.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本形態に係る感光性平版印刷版の巻取り装置の
ブロック図である。FIG. 1 is a block diagram of a photosensitive lithographic printing plate winding device according to an embodiment.
【図２】本形態に係る巻取り方法の張力パターンを示す
表である。FIG. 2 is a table showing a tension pattern of a winding method according to the embodiment.
【図３】本形態に係る巻取り方法の張力パターンをグラ
フである。FIG. 3 is a graph showing a tension pattern of the winding method according to the embodiment.
【図４】本形態に係る巻取り方法の張力パターンにおい
て初期巻取り張力の限界を示すグラフである。FIG. 4 is a graph showing a limit of an initial winding tension in a tension pattern of a winding method according to the embodiment.
【図５】従来の巻取り方法の張力パターンを示す表であ
る。FIG. 5 is a table showing a tension pattern of a conventional winding method.
【図６】従来の感光性平版印刷版の製造ラインを示すブ
ロック図である。FIG. 6 is a block diagram showing a conventional photosensitive lithographic printing plate manufacturing line.
２６ ダンサローラ（張力可変手段） ３２ 巻取りモータ ３４ 張力計（張力検出手段） ５６ エンコーダ（巻径検出手段） ５８ マイコン（制御手段） 26 Dancer roller (tension varying means) 32 Winding motor 34 Tensiometer (tension detecting means) 56 Encoder (winding diameter detecting means) 58 Microcomputer (control means)
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 2H096 AA06 LA30 2H114 AA04 AA16 AA23 BA02 EA02 EA06 EA10 FA02 FA14 GA01 GA31 3F055 AA09 BA25 CA01 DA01 3F105 AA08 AB03 BA03 BA04 CB02 CC08 DA04 DA42 DC03 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2H096 AA06 LA30 2H114 AA04 AA16 AA23 BA02 EA02 EA06 EA10 FA02 FA14 GA01 GA31 3F055 AA09 BA25 CA01 DA01 3F105 AA08 AB03 BA03 BA04 CB02 CC08 DA04 DA42 DC03
Claims (3)
る感光性平版印刷版の巻取り方法において、 前記感光性平版印刷版に付与される張力と巻径との関係
が、 前記感光性平版印刷版の感光層に剥離を生じさせない初
期巻取り張力と、 前記感光性平版印刷版の巻径の増加に伴い、巻取りモー
タのトルク能力をオーバーしないように巻取り張力を減
少させる割合を示すテーパーと、 前記感光性平版印刷版に巻きズレが生じないように前記
初期巻取り張力に上乗せされる上乗せ張力と、 前記上乗せ張力が解除される巻径を示す上乗せ終了径
と、 の各制御因子で決定されることを特徴とする感光性平版
印刷版の巻取り方法。1. A photosensitive lithographic printing plate winding method for winding a continuously running photosensitive lithographic printing plate, wherein a relationship between a tension applied to the photosensitive lithographic printing plate and a winding diameter is determined by the photosensitive lithographic printing plate. The initial winding tension that does not cause peeling of the photosensitive layer of the printing plate, and with the increase in the winding diameter of the photosensitive lithographic printing plate, indicates the ratio of reducing the winding tension so as not to exceed the torque capability of the winding motor. A taper, an additional tension that is added to the initial winding tension so that the photosensitive lithographic printing plate does not have a winding deviation, and an additional end diameter that indicates a winding diameter at which the additional tension is released. A method for winding a photosensitive lithographic printing plate, characterized in that:
力が一定のままで巻き取られる巻径を示すコーナー径を
設けたことを特徴とする請求項１に記載の感光性平版印
刷版の巻取り方法。2. The photosensitive lithographic printing plate winding according to claim 1, wherein a corner diameter indicating a winding diameter at which the initial winding tension is kept constant is provided as the control factor. How to take.
る感光性平版印刷版の巻取装置において、 前記感光性平版印刷版を巻き取る巻取り力を発生する巻
取りモータと、 巻き取られた前記感光性平版印刷版の巻径を検出する巻
径検出手段と、 前記感光性平版印刷版に付与する張力を可変させる張力
可変手段と、 前記感光性平版印刷版の張力を検出する張力検出手段
と、 前記巻径検出手段及び前記張力検出手段の検出結果に基
づき、所定の張力パターンで前記巻取りモータ及び前記
張力可変手段を制御する制御手段と、 を有することを特徴とする感光性平版印刷版の巻取装
置。3. A photosensitive lithographic printing plate winding device for winding a continuously running photosensitive lithographic printing plate, comprising: a winding motor for generating a winding force for winding the photosensitive lithographic printing plate; A winding diameter detecting means for detecting a winding diameter of the photosensitive lithographic printing plate; a tension varying means for varying a tension applied to the photosensitive lithographic printing plate; and a tension detecting means for detecting a tension of the photosensitive lithographic printing plate. Means, and control means for controlling the winding motor and the tension varying means in a predetermined tension pattern based on the detection results of the winding diameter detecting means and the tension detecting means. Printing plate winding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000121000A JP2001302044A (en) | 2000-04-21 | 2000-04-21 | Method and device for winding photosensitive lithography block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000121000A JP2001302044A (en) | 2000-04-21 | 2000-04-21 | Method and device for winding photosensitive lithography block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001302044A true JP2001302044A (en) | 2001-10-31 |
Family
ID=18631719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000121000A Pending JP2001302044A (en) | 2000-04-21 | 2000-04-21 | Method and device for winding photosensitive lithography block |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001302044A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006181994A (en) * | 2004-12-28 | 2006-07-13 | Toyobo Co Ltd | Manufacturing method of mold release film roll for manufacturing thin ceramic sheet |
-
2000
- 2000-04-21 JP JP2000121000A patent/JP2001302044A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006181994A (en) * | 2004-12-28 | 2006-07-13 | Toyobo Co Ltd | Manufacturing method of mold release film roll for manufacturing thin ceramic sheet |
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