JPS6063342A - High strength aluminum alloy plate for printing plate - Google Patents

High strength aluminum alloy plate for printing plate

Info

Publication number
JPS6063342A
JPS6063342A JP17080583A JP17080583A JPS6063342A JP S6063342 A JPS6063342 A JP S6063342A JP 17080583 A JP17080583 A JP 17080583A JP 17080583 A JP17080583 A JP 17080583A JP S6063342 A JPS6063342 A JP S6063342A
Authority
JP
Japan
Prior art keywords
plate
aluminum alloy
strength
thickness
alloy 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.)
Granted
Application number
JP17080583A
Other languages
Japanese (ja)
Other versions
JPH0419292B2 (en
Inventor
Shigeki Shimizu
茂樹 清水
Masayuki Onose
小野瀬 優幸
Yoshiyuki Shirosaka
欣幸 城阪
Hideyoshi Usui
碓井 栄喜
Masahiro Kawaguchi
雅弘 川口
Kozo Hoshino
晃三 星野
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.)
Kobe Steel Ltd
Mitsubishi Kasei Corp
Original Assignee
Kobe Steel Ltd
Mitsubishi Kasei Corp
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 Kobe Steel Ltd, Mitsubishi Kasei Corp filed Critical Kobe Steel Ltd
Priority to JP17080583A priority Critical patent/JPS6063342A/en
Publication of JPS6063342A publication Critical patent/JPS6063342A/en
Publication of JPH0419292B2 publication Critical patent/JPH0419292B2/ja
Granted legal-status Critical Current

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  • Printing Plates And Materials Therefor (AREA)

Abstract

PURPOSE:To obtain a high strength Al alloy plate for a printing plate having improved mechanical properties and handleability by specifying the thickness and yield strength of an Al-Mn-Fe alloy having a specified composition after cold rolling into a plate and by wavily recessing the surface of the plate. CONSTITUTION:An Al alloy consisting of 0.3-2wt% Mn, 0.05-0.8wt% Fe and the balance Al with impurities is cold rolled into a plate of 0.05-0.3mm. thickness so that >=16kg/mm.<2> offset yield stress strength at 0.2% permanent set is held. The surface of the alloy plate is wavily recessed by pressing to form a pattern of separate or partially overlapped waves. The surface may be finely recessed furthermore by electrochemical etching. Thus, the thickness of the support can be reduced, and the roughening process can be rationalized.

Description

【発明の詳細な説明】 本発明は印刷版用高強度アルミニウム合金板に関するも
のである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a high strength aluminum alloy plate for printing plates.

現在アルミニウムは平版印刷版を製造する基材として広
く使用されている。そして、アルミニウムの平版印刷版
はアルミニウム表面を粗面化して砂目を形成させ、感光
性組成物を塗布しこれを露光現像して印刷すべき画像部
をレノスト層として残すことによって得られる。
Aluminum is currently widely used as a substrate for manufacturing lithographic printing plates. Aluminum lithographic printing plates are obtained by roughening the aluminum surface to form grains, applying a photosensitive composition, exposing and developing the composition, and leaving the image area to be printed as a renost layer.

しカルで、アルミニウム表面に砂1]を形成させる目的
は2つあり、その節−は印刷操作中に刷版に適切な保水
性を与えること、第二にホトレン′ス1被覆とアルミニ
ウム表面との接着性を高め、充分な耐刷力を与えること
である。
The purpose of forming sand 1 on the aluminum surface during printing is two-fold: to provide the printing plate with adequate water retention during the printing operation, and secondly, to form the sand on the aluminum surface. The goal is to improve the adhesiveness of the material and provide sufficient printing durability.

この砂目立ての方法としては、ボールダレイニング、ワ
イヤーグレイニング、ブラシグレーニング等の機械的方
法や酸またはアルカリ溶液中でエツチングする化学的方
法、さらに、主として酸系の溶液中で電解エツチングす
る電気化学的り法t“1が実用化されている。しh化で
、機械曲性「1立て法を行なう場合の問題点は、機械や
研磨剤の調整に相当の熟練度を必要とすること、ネ■[
面化されたアルミニウム板の表面に食い込んだ研磨剤、
アルミニウム屑等を取除く作業を要することであり、ま
た、化学的砂l]立て法の問題は、浴組成、浴温度等を
可成り狭い範囲に管理する必要があるぽかりでなく、平
版印刷版支持体として必要な表面粗さを得るたbに、比
較的長時間のエツチングを要することであり、さらに、
最も高性能の砂目が得られる電気化学的砂目立て法を採
用した場合は、その電力消費が印刷版の製造原価に占め
る割合か相当大トくなるという問題かある。
Graining methods include mechanical methods such as boulder graining, wire graining, and brush graining, chemical methods such as etching in an acid or alkaline solution, and electrical methods such as electrolytic etching in an acid-based solution. A chemical polishing method has been put into practical use.The problem with using the mechanical bending method is that it requires considerable skill in adjusting the machinery and polishing agent. , Ne ■ [
Abrasives that have bitten into the surface of the planarized aluminum plate,
In addition, the problem with the chemical sand method is that it is necessary to control the bath composition, bath temperature, etc. within a fairly narrow range, and lithographic printing is not possible. In order to obtain the surface roughness required as a plate support, a relatively long period of etching is required, and furthermore,
If the electrochemical graining method, which provides the highest quality grain, is adopted, there is a problem in that the power consumption is a considerable proportion of the manufacturing cost of the printing plate.

このような砂目立て法の問題点を解消する方法として、
特開昭55 0748り83公報にはグレイニング面を
有するロールにアルミニウムを通して、深す3.5μ以
下の孔を形成させること特徴とする砂目製造法が記載さ
れている。この公報の砂目立て法は、操作が単純で、が
っ、従来の機械曲性目立て法のように、研磨剤、アルミ
ニウム屑等を取除く作業は不要で、さらに、処理速度も
天外いので製造プロセスが大幅に合理化される可能性を
有しているが、プレスにより孔を作成する際、孔の深さ
だけをフントロールしたのでは、平版印刷版としての好
ましい砂目を提供することができず、この方法は未だ実
用化に致っていない。また、特開昭54−063902
号公報には、7ラシ研磨により比較的粗い大きなピッチ
の凹構造を形成させ、次いで、化学洗浄により研磨剤や
アルミニウム屑を化学的に除去させた後、電気化学エツ
チングにより微細なピッチの凹構造を形成させることに
より、大きなピッチと小さなピッチの二種の凹構造を有
する砂目立の製造法が記載されているが、このような、
粗面構造を有する砂1[1は印刷版としての保水性、レ
ノストの接着性の点で固れているが、この公報記載の方
法では製造プロセスが複雑となり、製造コストか高くな
るという問題点があり、即ち、機械曲性目立て法と電気
化学的砂目立て法の両方の問題点を有する。
As a way to solve these problems with the graining method,
JP-A-55-0748-83 describes a method for producing grain, which is characterized in that aluminum is passed through a roll having a graining surface to form holes with a depth of 3.5 μm or less. The graining method described in this publication is simple to operate, does not require the removal of abrasives, aluminum chips, etc., unlike the conventional mechanical grain graining method, and has an unprecedented processing speed. Although the process has the potential to be significantly streamlined, when creating holes using a press, only controlling the depth of the holes cannot provide a desirable grain for a lithographic printing plate. However, this method has not yet been put into practical use. Also, JP-A-54-063902
In the publication, a relatively coarse, large-pitch concave structure is formed by 7-brush polishing, then abrasives and aluminum chips are chemically removed by chemical cleaning, and a fine-pitch concave structure is formed by electrochemical etching. A method for producing grains having two types of concave structures, one with a large pitch and one with a small pitch, has been described.
Sand 1 [1] having a rough surface structure is hard in terms of water retention and adhesion of renost as a printing plate, but the method described in this publication has the problem that the manufacturing process is complicated and the manufacturing cost is high. That is, it has the problems of both the mechanical graining method and the electrochemical graining method.

一方、従来平版印刷版用アルミニウム合金板としては機
械的粗面化法に対してA 1050、All0(1、A
3003に相当する祠料が用いられ、電解粗面化法に刻
しては電11イ柑而化のし易さの点からA+050相当
祠か゛用いられている。しカルなが呟純アルミニウムを
薄肉化すると取扱い1時の「折れ」「ペフ」、印刷時の
1版の伸び」の問題が発生し易く、バーニング処理(通
常200〜300℃で3〜10分間)を施した場合には
、これらの問題がさらに顕著となる。
On the other hand, conventional aluminum alloy plates for planographic printing plates have A1050, All0(1, A
An abrasive material equivalent to No. 3003 is used, and an abrasive material equivalent to A+050 is used in the electrolytic surface roughening method from the viewpoint of ease of conversion to A11. When pure aluminum is made thinner, problems such as "folding" and "puffing" during handling and elongation of the first plate during printing are likely to occur. ), these problems become even more pronounced.

このA 1050相当材では冷間圧延により強度上昇を
しても耐力(0,2%耐力以下では単に耐力という)は
せいぜい15KH/+n+o:程度しかならないため、
特に、大面積の版の場合には、板厚0.24+nm以」
二の印刷版支持体でなげれば上記の問題点か発生し印刷
版として使用しにくい面があった。
In this A 1050 equivalent material, even if the strength is increased by cold rolling, the yield strength (less than 0.2% yield strength is simply referred to as yield strength) is only about 15KH/+n+o: at most.
In particular, in the case of large-area plates, the plate thickness is 0.24+nm or more.
If the second printing plate support was used, the above-mentioned problems would occur, making it difficult to use as a printing plate.

本発明者はこのような事情に鑑み、支持体の砧肉化を可
能にし、がっ、その粗面化プロセスを大幅に合理化し、
平版印刷版支持体としての性能を満足する平版印刷版用
高強度アルミニウム合金板を開発した。そして、この支
持体の薄肉化の要求に対して、先ず、取扱い性、特に、
ハンドリング時の「折れ」についてアルミニウム合金の
板厚と耐力との関係を究明した。
In view of these circumstances, the present inventor has made it possible to make the support thinner, and has significantly streamlined the roughening process.
We have developed a high-strength aluminum alloy plate for lithographic printing plates that satisfies the performance as a lithographic printing plate support. In response to the demand for thinner supports, first of all, the handling characteristics, especially,
We have investigated the relationship between aluminum alloy plate thickness and yield strength regarding "bending" during handling.

「折れ」の評価に当ってf51図に示す評価法が最適で
ある。この評価法は幅15111 II+のアルミニウ
ム板の一端を水平に固定し、固定端より100m+11
の先端部に荷重を負荷し除荷した時の「折れ」が観察さ
れる時の最低荷重をめるものである。この方法で生じる
最低荷重(W [g])と耐力(σ。、2[Kg/11
 In ] )および板厚(t [m11+])の関係
をめると、W ヨコ 0.6 × σラニう x t’
・9となり、A1050材■の0.24+nm厚と同等
以」二の性f1ヒを有する耐カー板厚領域は第2図斜線
部](となる。即ち、A1050材0.2411111
1厚を比較した場合、板厚が0.22111Inであれ
ば耐力16に&/1111112以上板厚が0.17+
nmであれば耐力20 K H/ 1111112以」
二板厚か0.14111111であれば耐力24Kg/
w2以上であれば、同等の耐1−折れ」性能が(eられ
ることは明らかである。
The evaluation method shown in diagram f51 is optimal for evaluating "bentness." This evaluation method involves fixing one end of an aluminum plate with a width of 15111 II+ horizontally, and
This is the minimum load at which "bending" is observed when a load is applied and unloaded to the tip. The minimum load (W [g]) and proof stress (σ., 2 [Kg/11
Considering the relationship between In ]) and plate thickness (t [m11+]), W horizontal 0.6 × σRani x t'
9, and the car resistance plate thickness region with the second property f1 is equal to or greater than the 0.24+nm thickness of A1050 material 2 is the shaded area in Figure 2] (i.e., A1050 material 0.2411111
When comparing 1 thickness, if the plate thickness is 0.22111In, the yield strength is 16 &/1111112 or more plate thickness is 0.17+
If it is nm, the yield strength is 20K H/1111112 or more.”
If the thickness of the two plates is 0.14111111, the yield strength will be 24kg/
It is clear that if w2 or more, the equivalent 1-breakage resistance performance (e) is obtained.

このような評価結果から、本発明者は薄肉化を行なって
も取扱い性の低下しない強度値を究明腰さらに、強度向
上のための含有元素とし−(基本的にM n、Feを選
択上がっ、これらを含有する系のアルミニウム介金に長
円状のプレス四部を形成することにより本発明に係る4
印刷版用高強度アルミニウム合金板を完成した。
Based on these evaluation results, the inventors of the present invention determined to find a strength value that would not reduce the handling properties even when the wall thickness was reduced.Furthermore, the elements to be included to improve the strength were selected (basically Mn, Fe, etc.). By forming four oval pressed parts on the aluminum alloy containing these, the four parts according to the present invention are produced.
We have completed a high-strength aluminum alloy plate for printing plates.

本発明に係る楯印刷版用高強度アルミニウム合金板の特
徴とするところは、Mu (1,3〜2111L%、F
e0.05〜0.8uIL%を含有し、残部不純物およ
びA1からなるアルミニウム合金の冷開圧延後の板厚が
0.05−0.3mmで、この板厚において0.2%耐
力が16Kg/mm2以上であり、がっ、表面に長円状
のプレス四部を有し、このプレス四部が互に独立、或い
は、一部重なり合って波状模様を形成したところにある
The features of the high-strength aluminum alloy plate for shield printing plates according to the present invention are that Mu (1.3 to 2111L%, F
An aluminum alloy containing e0.05 to 0.8uIL% and the balance consisting of impurities and A1 has a plate thickness of 0.05 to 0.3 mm after cold-open rolling, and the 0.2% yield strength at this plate thickness is 16 kg/ It is larger than mm2 and has four oval pressed parts on the surface, and these four pressed parts are independent of each other or partially overlap to form a wavy pattern.

さらに、必要に応じて、0.2%耐力(σ。、2、Kg
/rom”)と板厚(t、 ++no)の関係をσHA
 X tL9≧32とし、また、アルミニウム合金支持
体の表面の長円状プレス四部が長軸平均長さ10〜14
0μJ短軸平均長さ7〜80μm、)、中心線平均粗さ
0.3〜1.5μm1)とし、さらに、アルミニウム合
金支持体の表面の長円状プレス四部の密度が200個/
1111112以」二とし、また、0.05〜0.31
11111の板厚において、20μIll以下の共晶化
合物が500個/ +11 m ”以上存在する表面に
、プレスにより形成された長円状四部と電気化学的エツ
チングにより形成された1〜10μI11の微細凹部と
を混在させることもできる。
Furthermore, if necessary, 0.2% proof stress (σ., 2, Kg
/rom”) and plate thickness (t, ++no) as σHA
X tL9≧32, and the four oval pressed parts on the surface of the aluminum alloy support have a long axis average length of 10 to 14
0 μJ short axis average length 7 to 80 μm), center line average roughness 0.3 to 1.5 μm1), and furthermore, the density of the four oval presses on the surface of the aluminum alloy support is 200 pieces/
1111112 or more, and 0.05 to 0.31
In the plate thickness of 11111, on the surface where there are 500 or more eutectic compounds of 20μIll or less/+11 m'', there are four oval parts formed by pressing and fine recesses of 1 to 10μI11 formed by electrochemical etching. You can also mix them.

本発明に係る印刷11i用高強度アルミニウム合金板は
、単に強度か高<m固化プロセスを合理化したたけでは
なく、電解tn面化性を著しく改善したものであり、し
h化で、従来祠のA10504’Jは素(・1の製造工
程の影響か少なく交流電解粗面化性か全般的に良好であ
るが、通常のA300::l旧よ交流電IW粗面化時に
エンチングムラが発生し易いため、電解第11面化支持
本用としては使用か困難であった。
The high-strength aluminum alloy plate for printing 11i according to the present invention not only has a streamlined hardening process, but also has significantly improved electrolytic tn surfaceability. A10504'J is generally good due to the influence of the manufacturing process of 1.Although it is generally good in terms of AC electrolytic roughening, it is more likely to cause uneven etching when roughening the AC electrolytic IW surface than the regular A300::1. However, it was difficult to use the electrolytic 11-sided support book.

そこで本発明者はアルミニウム合金の交流電解刈面化に
関して鋭意研究した結果優れた4・」料を見出した。即
ち、AI−Mu系合金を′/、流電解法に」:り粗面化
を行なう場合に、電気化学的1、γ性からエツチングの
開始点はi共晶化合物1/[マ) l)ックス1211
ユびに[析出化合物1/[マトリック刈のW而であり、
適当な高さピンチの本社i7uを1:するために1よj
白当な共晶化合物分布および適当な4ji出物分布状態
に調整することが必要であることを究明したので゛以下
説明する。
Therefore, the inventor of the present invention conducted intensive research on alternating current electrolytic cutting of aluminum alloys, and as a result, discovered an excellent 4" material. In other words, when roughening an AI-Mu alloy using a flow electrolytic method, the etching starting point is the eutectic compound 1/[ma) l) due to the electrochemical 1 and γ properties. x1211
[Precipitated compound 1/[W of matric cutting,
1 to make the main office i7u with an appropriate height pinch
It has been found that it is necessary to adjust the distribution of the eutectic compound and the distribution of the 4ji product to a suitable state, and this will be explained below.

即ち、鋳造時に形成されるAl−Mn−Fe系−9の共
晶化合物は通常1μl1l−数10μmoであり、析出
物に比較して大といため、適当な粗面状況(該当な粗度
Raおよび望ましいピットピッチ)とするためには、共
晶化合物のコントロールが必要であり、即ち、適当なビ
ットピッチとするためには共晶化合物は500個/In
l++2以上とする必要である。また、化合物サイズが
巨大となり過ぎ20μIllを越えるとそれ自体で巨大
なピットとなるため、20μ口〕以下に調整しなければ
ならない。共晶化合物は1μm前後のものであっても、
電解粗面化条件によりピットサイズか充分な太ぎさにま
でフントロールできるためエンチングの核として充分で
ある。従って、共晶化合物分布としては、20μm11
以下の大ぎさの比較的粗大な化合物カ500〜5ooo
o個/lll111:lノ存在か必要である。しカル、
第11面状況をより望ましい状態にコントロールするた
めには、最長部が2.5μIn以」二の粗大な共晶化合
物を1000〜10000個/1111112に調整す
る。本発明に係る平版印刷版用高強度アルミニウム合金
板は、共晶化合物を微細(3μII+程度以下)とする
ことにより適正ピットを形成する特開昭58−0015
92号公報および特開昭58 001.0717号公(
・1iと、共晶化合物を比較的tn大とすることにおい
で基本的に411違している。
That is, the Al-Mn-Fe system-9 eutectic compound formed during casting is usually 1 μl-10 μm, which is larger than the precipitates, so it is necessary to adjust the surface roughness appropriately (appropriate roughness Ra and In order to obtain a desirable pit pitch, it is necessary to control the eutectic compound. In other words, in order to obtain a suitable bit pitch, the number of eutectic compounds must be 500 pieces/In.
It is necessary to set it to l++2 or more. Furthermore, if the compound size becomes too large and exceeds 20 μl, it will itself become a huge pit, so it must be adjusted to 20 μl or less. Even if the eutectic compound is around 1 μm,
Depending on the electrolytic surface roughening conditions, the pit size can be rolled to a sufficient thickness, which is sufficient as a nucleus for etching. Therefore, the eutectic compound distribution is 20μm11
Comparatively coarse compounds of the following size: 500 to 5ooo
It is necessary for there to be o pieces/lll111:l. Shikaru,
In order to control the condition of the 11th surface to a more desirable state, the number of coarse eutectic compounds whose longest part is 2.5 μIn or more is adjusted to 1000 to 10000/1111112. The high-strength aluminum alloy plate for lithographic printing plates according to the present invention is disclosed in Japanese Patent Laid-Open No. 58-0015, in which appropriate pits are formed by making the eutectic compound fine (approximately 3μII+ or less).
No. 92 and Japanese Unexamined Patent Publication No. 58 001.0717 (
・There is a fundamental difference of 411 points from 1i in that the eutectic compound has a relatively large tn.

そして、鋳塊均熱等の熱処理により形成される(ji出
出合合物エンチングの開始点(以下有効核という)とな
るが、電気化学的工7チング(電1リイオ11面化)の
みで平版印刷版として必要なオ11度の値をイ:1よう
とする場合には、400〜50(1’cの温度で形成さ
れるような@細な析出物(0,2μm1 !’l’l後
)の数をできるだけ少なくする必要がある。しかし、本
発明に係る平版印刷版用高強度アルミニウム合金4反に
J酬いては、プレスによる四部と組合せることしこより
この問題を解決したもので、従って本発明に係る平版印
刷版用高強度アルミニウム合金板は庭木の電解粗面化用
(・2料に比べて比較的1慴」Iに熱処理条件を設定で
きる。
Then, it is formed by heat treatment such as soaking of the ingot (ji), which becomes the starting point (hereinafter referred to as the effective nucleus) for depletion compound enching, but it can be formed by electrochemical processing (electrochemical processing (electronic 1 lithium ion oxide 11 surface formation)) alone. When trying to obtain a value of 11 degrees Celsius required for a printing plate, it is necessary to use a fine precipitate (0.2 μm1!'l'l) that is formed at a temperature of 400 to 50 (1'C). However, this problem has been solved by combining the high-strength aluminum alloy 4 rolls for lithographic printing plates according to the present invention with 4 rolls by pressing. Therefore, the high-strength aluminum alloy plate for lithographic printing plates according to the present invention can be used for electrolytically roughening the surface of garden trees (relatively 1 mode compared to 2 materials).

次に、本発明に係る印刷服用高強度アルミニウム合金板
の含有成分および成分割合についで説明する。
Next, the components and component ratios of the high-strength aluminum alloy plate for printing according to the present invention will be explained.

M nは強度向上、取扱い性向」二のtこめおよび電解
In面化面の均一化のために含有させる元素であり、含
有量が0.3u+t%未11市ではこのような効果が少
なく、また、2ulL%を越える含有量では強度向上、
取扱い性向上の効果が飽和し、かつ、20μm0以上の
粗大なAI Mn系およびAI Mll Fe系の共晶
化合物の形成により電解tn面化面の均一化が図れなく
なる。よって、l\111含有量は0.3〜2u+t%
とする。
Mn is an element that is included to improve strength, improve handling properties, and make the electrolytic In surface uniform. If the content is less than 0.3u+t%, this effect is small, and , the strength increases when the content exceeds 2ulL%,
The effect of improving handling properties is saturated, and the formation of coarse AI Mn-based and AI Mll Fe-based eutectic compounds of 20 μm or more makes it impossible to make the electrolytic tn surface uniform. Therefore, l\111 content is 0.3~2u+t%
shall be.

FeはMnの晶出を助長し、電解+n面化而面均一効果
を高めるためおよび強度向上のために含有させる元素で
あり、含有量か0.051%未満では共晶化合物の形成
数およびサイズか充分でなく均一な机面が得られ難く、
また、0.8u+t%を越えて含有されるとMn含有と
、ll]俟って粗大な共晶化合物が形成され電解机面化
面が不均一となり易い。よって、Fe含有量は0.05
〜0.8u+L%とする。
Fe is an element that is included to promote the crystallization of Mn, enhance the electrolytic + n-plane uniformity effect, and improve strength. If the content is less than 0.051%, the number and size of eutectic compounds formed It is difficult to obtain a uniform desk surface due to insufficient
Furthermore, if the content exceeds 0.8u+t%, a coarse eutectic compound is formed together with the Mn content, and the electrolytic surface tends to become non-uniform. Therefore, the Fe content is 0.05
~0.8u+L%.

ト4n含イ1量か1. 、5+u t%を越えると充分
なA l−Mn系共晶化合物の晶出があるので、Fe含
有量は少量でも性能上問題はないのである。
Contains 1 amount of 4n or 1. , 5+ut%, sufficient crystallization of Al-Mn-based eutectic compounds occurs, so even a small amount of Fe content poses no problem in terms of performance.

上記したMllおよびFeの外に、Mg、Cuを必要に
応し含イ5させてもよく、N1gは強度向上、取扱い性
向−1−のため有効な元素であり、含有量が0.1wt
%未渦ではこの効果は少なく、2u+L%を越えて含有
されると本発明に係る平版印刷版用高強度アルミニウム
合金板の特色の1つであるバーニング処理時の低耐力低
下率の効果か減少するので、Mg含有量は0.1〜2u
+L%とするが、特に、低耐力1氏上率を考えるならば
、1uL%以下とするのがよく、Cuについては、[共
晶化合物1/171りンク刈の電位差を高め電解粗面化
によるエツチング効果を高くするためおよび強度向上の
ために有効な元素であり、含有量が0.05u+L%未
7i1:iではこの効果が少なく、また、11%を越え
る含有111では電解机面化時の溶解が過剰となり好ま
しくないので、Cu含有量は0.05〜1ast%とす
る。
In addition to the Mll and Fe mentioned above, Mg and Cu may be included if necessary5, and N1g is an effective element for improving strength and handling properties, and the content is 0.1wt.
% unvortexed, this effect is small, and when it is contained in excess of 2u+L%, the effect of low yield strength reduction rate during burning treatment, which is one of the features of the high strength aluminum alloy plate for lithographic printing plates according to the present invention, decreases. Therefore, the Mg content is 0.1~2u
+L%, but especially when considering the low proof stress increase rate of 1 degree, it is better to set it to 1uL% or less.For Cu, [eutectic compound 1/171 link cutting potential difference is increased and electrolytic surface roughening is applied. It is an effective element for increasing the etching effect and improving strength, but if the content is less than 0.05u+L%, this effect will be small, and if the content exceeds 11%, it will not be effective when used as an electrolytic surface. The Cu content is set to 0.05 to 1 ast%, which is undesirable because it dissolves excessively.

不純物については、通常市販の工業用純アルミニウムに
含有される程度であれば差支えないが、電1■1[百合
処理を施す場合には鋳塊組織の微細化のためのT1の含
有は、AI Ti粒子および/またはi” i −8粒
子の凝集を生し易く、電解本11面化処理により不均一
な机面になり易いのでT1の含有は0.05111L%
以下とするのかよく、同様にSiは0.51%を越えて
含有されると電解粗面化処理により未エツチング部が出
現し易くなる傾向を示すので81は0.51IIt%以
下とする。
Regarding impurities, there is no problem as long as they are contained in commercially available industrial pure aluminum. The content of T1 is 0.05111L% because it tends to cause agglomeration of Ti particles and/or i''i-8 particles, and it tends to result in an uneven desk surface due to the electrolytic book 11-sided treatment.
Similarly, if Si content exceeds 0.51%, unetched portions tend to appear easily due to electrolytic surface roughening treatment, so 81 should be set to 0.51IIt% or less.

上記に説明した含有成分および成分割合のアルミニウム
合金の溶湯を常法に従いフィルターを通過させ鋳造する
。通常アルミニウムおよびアルミニウム合金溶湯中には
非金属介在物、酸化物等の異物か存在するため、これを
除去しなければ電解粗面化、特に異物に起因するエツチ
ングムラが発生するのでフィルターを通過させる。また
、鋳造に際しては共晶化合物の分布を適正とするため冷
却速度1℃/see以上で凝固させるか、1°C/se
c未満では20μILlを越える共晶化合物か多数形成
され、電解粗面化面を不均一とする。
A molten aluminum alloy having the components and proportions described above is passed through a filter and cast according to a conventional method. Normally, there are foreign substances such as non-metallic inclusions and oxides in molten aluminum and aluminum alloys, so if these are not removed, electrolytic surface roughening will occur, especially uneven etching caused by foreign substances, so pass through a filter. . In addition, during casting, in order to obtain an appropriate distribution of the eutectic compound, solidification should be performed at a cooling rate of 1°C/see or higher, or at a cooling rate of 1°C/see.
If it is less than c, a large number of eutectic compounds exceeding 20 μIL are formed, making the electrolytically roughened surface non-uniform.

この鋳塊を固剤し均質化加熱し熱間圧延を行なう。この
時の均質化条件は500〜610°CX4Sl−1r以
下と腰本発明に係る平版印刷版用高強度アルミニウム合
金板は400〜500℃の温度で約0.2μmのAI−
Mu系析出物が多量に形成され易く、これら多数の析出
物の存在は充分な程度の電解相部化が摺−られ難くし、
中間位鈍時の再結晶粒を和犬化し、その結果繰返し曲げ
プ11命が低下するため、500 ’C以上の温度で均
熱する。そして、この500°C以上の温度では」二記
のように析出物形成量が少ないので共晶化合物より表面
拡大される電解和尚に月して悪影響を与えることがなく
、また、G ] 0 ’Cを越える温度および481−
1rを越える時間では、その効果が飽和してしまい不経
済である。
This ingot is solidified, homogenized and heated, and then hot rolled. The homogenization conditions at this time are 500 to 610°C
A large amount of Mu-based precipitates are likely to be formed, and the presence of these many precipitates makes it difficult to form a sufficient electrolytic phase.
Since the recrystallized grains at the intermediate level of dullness become rough, and as a result, the life of repeated bending is reduced, soaking is carried out at a temperature of 500'C or higher. At temperatures above 500°C, the amount of precipitates formed is small as described in section 2, so there is no adverse effect on the electrolysis process, which is surface-expanded compared to the eutectic compound. Temperatures exceeding C and 481-
If the time exceeds 1r, the effect will be saturated and it will be uneconomical.

熱間圧延に関しては、アルミニウド合金の含イ」成分お
よび成分割合およびダi)’4 flys冷J、11速
度を適11゛に組合せて適正な共晶化合物分布とし、が
っ、適正な均熱条件であれば特に厳密に管理する必要は
ない。
Regarding hot rolling, the components and component proportions of the aluminum alloy and di) '4 flys cold J, 11 speeds are appropriately combined to obtain an appropriate eutectic compound distribution, and proper soaking is performed. There is no need to strictly manage the conditions.

熱間圧延終・1後、冷間圧延、中間焼鈍、冷間圧延を行
なうが、中間焼鈍において、取扱い性向上のために焼鈍
前の冷間圧延量が充分であれば、除熱・徐冷方式および
急熱・急冷方式の何れの方式でも問題はない。しかし、
再結晶粒サイズ(平均粒径150μm以下)を得るため
には、急熱・急冷方式で300−600℃X12Hr以
下で100℃7m i n以上の速度で昇温、降温する
のがよい。そして、300℃未満では再結晶か完全でな
く、eoo’cを越える温度および121(rを越える
時間ではこれす、上の効果が期待でbず不経済である。
After hot rolling, cold rolling, intermediate annealing, and cold rolling are performed.In intermediate annealing, if the amount of cold rolling before annealing is sufficient to improve handling, heat removal and gradual cooling are performed. There is no problem with either method or rapid heating/quenching method. but,
In order to obtain a recrystallized grain size (average grain size of 150 μm or less), it is preferable to raise and lower the temperature at 300-600° C. x 12 hours or less at a rate of 100° C. 7 min or more using a rapid heating/quenching method. If the temperature is lower than 300° C., the recrystallization is not complete, and if the temperature exceeds eoo'c and the time exceeds 121 (r), the above effect is not expected and is uneconomical.

なお、再結晶粒径が150μmoを越える場合は、冷間
圧延終了時のアルミニウム合金板表面に筋模様が肉眼視
され商品価値を失なうと共に、繰返し曲げ1命をj威少
するのぐ150μ口)以下とする。
If the recrystallized grain size exceeds 150 μm, streaks will be visible to the naked eye on the surface of the aluminum alloy plate after cold rolling and the commercial value will be lost, and the life of repeated bending will be reduced.口)The following shall apply.

中間焼鈍後、20%以上の冷開圧延率で最終冷開圧延を
行ない、]、6Kg/man2以上に強度を調整し、0
605〜0.3mmのアルミニウム合金板とし、このア
ルミニウム合金板の調質は本発明に係る平版印刷版用高
強度アルミニウム合金板における性能か得られる限りに
おいて、H山t1.n、(I(、口)の何れでもよい。
After intermediate annealing, final cold-opening rolling is performed at a cold-opening rolling rate of 20% or more, and the strength is adjusted to 6Kg/man2 or more.
An aluminum alloy plate with a thickness of 605 to 0.3 mm is used, and the heat treatment of this aluminum alloy plate is such that the H-mount t1. It can be either n or (I(, 口).

また、本発明に係る平版印刷版用高強度アルミニウム合
金板は印刷版としての使用時にバーニング処理時の耐力
低下率を20%以下に抑えることかでき、純アルミニウ
ムの場合の40%(1°度と比較して取扱い性はさらに
向上させることかできる。
In addition, the high-strength aluminum alloy plate for lithographic printing plates according to the present invention can suppress the yield strength reduction rate during burning treatment to 20% or less when used as a printing plate, which is 40% (1° degree The ease of handling can be further improved.

本発明1こ係る印刷版用高強度アルミニウム合金板では
、中間焼鈍以後の冷間圧延ゴー程ににいて少くとも、最
終1パスを規定された表面形状を有する粗面化ロールを
用いて圧延することにより、ロールの表面形状をアルミ
ニウム合金板表面に幀写する。この粗面ロールは、例え
ば、鋼製および酸化物或いはカーバイド等の100〜1
000μの微粒子をインペラー回転数1500−300
0rp111、グリ、ド投大量100〜500Kg/+
niuの条件で回転中のロール1こ噴射させて製造しす
る。このロールを用いてアルミニウム合金を圧延する際
の1パス当りの川下率は3〜50%か好ましく、必要に
応じて複数回圧延することも可能である。そして、圧延
されたアルミニウム合金板は表面に長円状の四部が密に
」にび、かつ、フリンジが一部重なり合って波状模様を
形成しでいる。この長円状凹部の深さは、保水性、小点
再現性の点から中心線平均第11さRaは0.3〜1.
5μとする。この中心線平均第11すが0.3μ未満で
は保水性か不充分であり、1.5μを越えると小点再現
性が低下する。また、この長円状四部の大ぎさは平均で
、長袖方向10〜140μ、短軸方向7〜80μか保水
性、小点再現性、レノス)・の接着性の点からこの範囲
とする。長円状四部の大きさかこれより大きくなると接
着性、小点再現性か低下し、また、長円状四部の密度は
200〜1.5000個/llTm2とし、この範囲の
密度で、長円状四部の7リンノは一部か重なり合い、全
体として波状模様を形成する。この密度が低いとレンス
トの接着性、保水性が低下する。このように、プレスに
より長円状の四部が形成されたアルミニウム合金板は、
そのままで平版印刷版用支持体として使用することがで
きる。
Present invention 1 In this high-strength aluminum alloy plate for printing plates, at least one final pass is rolled using a roughening roll having a defined surface shape in the cold rolling step after intermediate annealing. By doing so, the surface shape of the roll is copied onto the surface of the aluminum alloy plate. This rough surface roll is made of steel, oxide or carbide, etc.
000μ fine particles at impeller rotation speed 1500-300
0rp111, Guri, Do throwing amount 100-500Kg/+
The product is manufactured by spraying one rotating roll under the conditions of niu. When rolling an aluminum alloy using this roll, the downstream rate per pass is preferably 3 to 50%, and it is also possible to roll the aluminum alloy multiple times if necessary. The rolled aluminum alloy plate has four elliptical sections extending densely on its surface, and the fringes partially overlap to form a wavy pattern. The depth of this elliptical recess is determined to have a center line average height Ra of 0.3 to 1.0 from the viewpoint of water retention and small point reproducibility.
It is set to 5μ. If the center line average density is less than 0.3μ, water retention is insufficient, and if it exceeds 1.5μ, the reproducibility of small dots decreases. The average size of the four oval parts is 10 to 140 microns in the long sleeve direction and 7 to 80 microns in the short axis direction, and is set within this range from the viewpoint of water retention, dot reproducibility, and adhesion. If the size of the elliptical four parts is larger than this, the adhesion and dot reproducibility will deteriorate. The four 7-linos partially overlap, forming a wavy pattern as a whole. If this density is low, the adhesion and water retention properties of Lenst will decrease. In this way, an aluminum alloy plate with four oval parts formed by pressing,
It can be used as it is as a support for lithographic printing plates.

しかして、さらに平版印刷版としての性能な改善するた
めに、電気化学エンチング処理を行なって小さなピッチ
の凹部を形成させることもできる。
Therefore, in order to further improve the performance as a lithographic printing plate, electrochemical etching treatment can be performed to form recesses with a small pitch.

即ち、プレス加工だけの砂目では表面に光dくがあり製
版を行なった時の小点や、印刷作業中の水上り状況等が
見え力1いという場合かあるので゛、この問題解決の手
段として電気化学エンチングによりさらに微細な凹部パ
ターンをイ」与するのである。
In other words, if the surface is grained only by press processing, there may be light spots on the surface and it may be difficult to see small dots during plate making or water rising during printing. As a method, a finer concave pattern is created by electrochemical etching.

そして、この電気化学エツチングは塩酸または硝酸浴中
で行なわれ、塩酸浴の濃度はO9:(〜3tut%、硝
酸浴の濃度は0.5〜5+uL%であり、電流密度は2
0〜200 A /山□2、浴温度は10〜40゛C1
処)!l!++、ν間は5〜100秒で行なう。この電
気化学エツチングにより形成された凹構造のピンチは、
1〜10μでプレス加工による長円状四部よりは一桁低
く、この微細凹構造の密度は20000〜100000
個/n11n:lであり、プレス加工による長円状四部
の一1〕に重なって形成される。
Then, this electrochemical etching is performed in a hydrochloric acid or nitric acid bath, the concentration of the hydrochloric acid bath is O9: (~3 tut%, the concentration of the nitric acid bath is 0.5~5+uL%, and the current density is 2
0~200 A/mountain □2, bath temperature 10~40゛C1
place)! l! The period between ++ and ν is 5 to 100 seconds. The pinch of concave structure formed by this electrochemical etching is
The density of this fine concave structure is 1 to 10μ, which is an order of magnitude lower than that of the elliptical four parts formed by press processing, and the density of this fine concave structure is 20,000 to 100,000.
/n11n:l, and is formed overlapping the four oval parts 11] by press working.

本発明に係る印刷版用高強度アルミニウム合金板上に形
成された砂目は、従来のブラシ研磨→化学洗浄→電)ち
イエッチングという]二枚で得られる砂目に比べて、ブ
ラシ研磨という熟練を要する作業がなく、また、研磨剤
やアルミニウム合金屑を化学洗浄により除去するという
作業も不要となり、大幅に合理化されている。
The grain formed on the high-strength aluminum alloy plate for printing plates according to the present invention is different from the grain obtained by conventional brush polishing, chemical cleaning, and electro-etching. There is no work that requires skill, and there is no need to use chemical cleaning to remove abrasives or aluminum alloy debris, making it significantly more streamlined.

このように砂目が形成された平版印刷版用高強度アルミ
ニウム合金板はそのまま平版印刷版用支持体として使用
できるけれども、必要に応じて、陽極酸化、化成処理を
施すこともでき、陽極酸化処理は、従来性なわれている
方法でよく、例えば、硫酸、燐酸、クロム酸、蓚酸、ス
ルファミン酸、ベンゼンスルホン酸等或いはこれら二種
以上を組合せた水溶液中で、電流密度1〜50A/dI
II:l、電解時間15秒〜15分、浴温25〜75℃
で行なう。この陽極酸化後、さらに、熱水、珪酸塩、重
クロム酸塩、酢酸塩、親水性高分子化合物等を用いて封
孔処理または親水処理を行なってもよい。
The high-strength aluminum alloy plate for lithographic printing plates with grains formed in this way can be used as a support for lithographic printing plates as is, but if necessary, it can also be subjected to anodizing or chemical conversion treatment. For example, in an aqueous solution of sulfuric acid, phosphoric acid, chromic acid, oxalic acid, sulfamic acid, benzenesulfonic acid, etc. or a combination of two or more of these, a current density of 1 to 50 A/dI may be used.
II: l, electrolysis time 15 seconds to 15 minutes, bath temperature 25 to 75°C
Let's do it. After this anodization, a sealing treatment or a hydrophilic treatment may be performed using hot water, a silicate, a dichromate, an acetate, a hydrophilic polymer compound, or the like.

本発明に係る印刷版用高強度アルミニウム合金板に形成
された砂目に適用される感光物質は特に限定的ではなく
、例えば、ジアゾ樹脂とパイングーとからなるネガ作用
感光性組成物、O−キノンシアノド化合物とパイングー
とからなるポジ゛作用感光性組成物、アット化合物とバ
イングーとからなるネガ作用感光・111組成物、光二
1代化型7オトポリマーよりなるネガ作用感光組成物、
尤徂合型モノマーとバイングーとよりなるネガ作用感光
性組成物等があげられる。これらの感光性組成物を適当
な溶媒に溶解り本発明に係る平版印刷服用高強度アルミ
ニウム合金板に形成されている砂田こ塗布し乾燥すれば
、感光性平版印刷版が得られる。
The photosensitive material applied to the grains formed on the high-strength aluminum alloy plate for printing plates according to the present invention is not particularly limited. A positive-working photosensitive composition comprising a compound and pinegu, a negative-working 111 composition comprising an at compound and bainggu, a negative-working photosensitive composition comprising a photo-21-type 7 otopolymer,
Examples include negative-acting photosensitive compositions comprising a combination monomer and baingu. A photosensitive lithographic printing plate can be obtained by dissolving these photosensitive compositions in a suitable solvent, applying the solution to a sand plate formed on a high-strength aluminum alloy plate for lithographic printing according to the present invention, and drying.

これに被複写物を重ねて露光、現像すれば親水性および
保水性に優れ、かつ、感光層と砂[1との接着性が強固
な優れた印刷版を製造することかで外る。 以下本発明
に係る印刷版用品強度アルミニウム合金板の実施例を説
明する。
By stacking a copy on this plate and exposing and developing it, an excellent printing plate with excellent hydrophilicity and water retention, and strong adhesion between the photosensitive layer and the sand [1] can be produced. Examples of the high-strength aluminum alloy plate for printing plate products according to the present invention will be described below.

実施例1 第1表に示す本発明アルミニウム合金の溶湯をフィルタ
ー通過後、面側後の表面に相当する部分の冷却速度を4
°C/secとして鋳造した。このvj塊を面側後54
0°CX6)IT均熱後、熱間)1延を41111f1
1!1(280°Cで終了し、0.75m+o厚マチ冷
間圧延し、昇温降温速度500°C/mim、500℃
×0秒の中間焼鈍を行ない、さらに冷間圧延して0.4
+n+n厚とした。
Example 1 After passing the molten aluminum alloy of the present invention shown in Table 1 through a filter, the cooling rate of the portion corresponding to the rear surface was set to 4.
It was cast as °C/sec. After this vj mass on the face side 54
0°C
1!1 (finished at 280°C, cold rolled to 0.75m+o thickness, heating and cooling rate 500°C/min, 500°C
×0 second intermediate annealing and further cold rolling to 0.4
+n+n thickness.

これを硬度(Hv) 860、平均粒度250μの@、
4製粒子ヲインペラー回軒数200 Or +1 Il
+、グリッド投入量250/rninの条件で表面を粗
面化した圧延ロールを用いて 2パス圧延し、O,15
n+m厚の粗面化されたアルミニウム合金板を41だ。
This has a hardness (Hv) of 860 and an average particle size of 250μ.
4 particle impeller number of times 200 Or +1 Il
+, 2-pass rolling using a rolling roll with a roughened surface under the conditions of grid input amount 250/rnin, O, 15
41 is a roughened aluminum alloy plate with a thickness of n+m.

表面の中心線平均ネ■さは0.58μI11の長円状凹
構造の艮軸乎均長さは26μm11%短軸平均長さは1
1μm0であり、長円状四部の密度は平均2000個/
mt+二であった。このアルミニウム合金板の機械的性
質および取扱い性を0.24mm厚のJIS1050材
(比較例B)との比較を第2表に示す。なお、本発明ア
ルミニウム合金板の中間焼鈍後の平均再結晶粒径は40
μ+1)であり、また、0.15+n+n厚における品
出物は最長部2.5μIn以上の大外さのものが平均4
400個/1111112存在していた。
The average length of the center line of the surface is 0.58μI.The average length of the axis of the elliptical concave structure of 11 is 26μm.11% The average length of the minor axis is 1
1μm0, and the density of the four oval parts is on average 2000 pieces/
It was mt+2. Table 2 shows a comparison of the mechanical properties and handling properties of this aluminum alloy plate with that of a 0.24 mm thick JIS1050 material (Comparative Example B). The average recrystallized grain size after intermediate annealing of the aluminum alloy plate of the present invention is 40
μ + 1), and for products with a thickness of 0.15 + n + n, the longest part has a diameter of 2.5 μIn or more, on average 4
There were 400/1111112 pieces.

第2表において、「折れ4発生荷重は板厚の薄ν)本発
明アルミニウム合金板の方が天外く、大きな荷重に耐え
られることが明らかで、かつ、「折れj長すが小さいこ
とから本発明アルミニウム合金板がより天外な変形を受
けても「折れ」の発生しノJ゛いことも明らかで、本発
明アルミニウム合金板は耐[折れj性に優れていること
がわかる。また、繰返し曲げ)、7・命につい′ζも本
発明アルミニウム合金板か比較例の2倍以−にで優れて
おり、バーニング時の耐力低下率および耐伸び性も本発
明アルミニウム合金板が曖れていることがわかる。
In Table 2, it is clear that the aluminum alloy plate of the present invention can withstand a much larger load than the aluminum alloy plate of the present invention (the load at which bending occurs is due to the thinness of the plate), and that the bending length is small, It is also clear that even if the aluminum alloy plate of the invention is subjected to more extreme deformation, it does not "break", indicating that the aluminum alloy plate of the invention has excellent bending resistance. In addition, the aluminum alloy sheet of the present invention is more than twice as good as the comparative example in terms of repeated bending), 7. It can be seen that

次に、硫酸20u+t%浴中で、電流密度6A/d11
12、電解時間20秒でアルマイト処理を施した後、下
記の組成のO−キノンジアジド系感ソC液を20mH/
d+o2の模厚に塗布した。
Next, in a 20u+t% sulfuric acid bath, the current density was 6A/d11.
12. After alumite treatment with an electrolysis time of 20 seconds, O-quinonediazide-based C-sensitized liquid with the following composition was heated at 20 mH/
It was applied to a thickness of d+o2.

ナフトキノンジアンド−5−スルホニルクロライド ク樹脂との縮合物 5.Og lo−クレゾール・ホルムアルデヒド iH脂 7.− ビクトリアピュアーブルーBoll(保」−谷化学社製
) (1.1シI トリクレジルホスフエート 0.1h エチルセロソルブ 100g 得られた感光性印刷版1こ、1v1像カチヤート、ステ
ップタブレットおよびボンフィルムを密着し、メタルハ
ライドランプで露光し、続し・て、メタ珪酸ナトリウム
4社%水溶液で現像したところ5段クリアで2%の網点
か再現されており、次に、ローランド社オ7セ・/ト印
刷磯(パルバ)で印刷試験を行なった呟特に汚れも発生
せず+5万枚の印刷が行なえた。
Condensate of naphthoquinone diand-5-sulfonyl chloride with doku resin 5. Og lo-cresol formaldehyde iH fat 7. - Victoria Pure Blue Boll (manufactured by Tani Kagakusha) (1.1 I Tricresyl phosphate 0.1 h Ethyl cellosolve 100 g Obtained photosensitive printing plate 1 piece, 1 v 1 image cathiat, step tablet and bon film When exposed with a metal halide lamp and then developed with a 4% aqueous solution of sodium metasilicate, a 2% halftone dot was reproduced with 5-stage clear. I did a printing test on a printing press called Palva and was able to print 50,000 sheets without any stains.

実施例2 第3表に示す本発明アルミニウム合金Cを面側後の表面
に411当する部分の冷却速度か2℃/ SeCでυi
造した。このSIζ塊を面側後590”CX 41−1
 r均熱し、次いで、4m+11厚、260°Cで熱間
圧延を終了し、1 +1111+厚まで冷間圧延した後
に昇温降温速度5(10’c’/III i nで50
0℃X 0secの中間焼鈍を行ない、さらに冷間圧延
をして0.5mm厚とした。これを実施例1と同様の条
件で第11面化圧延し、0.2m+n厚の粗面板を作っ
た。この(幾械的性質を第4表に示す。続イテ、6Aa
 20LIIL%’N 中テロ A / den :′
、20秒の%M条件で陽極酸化処理をし、次に、珪酸ソ
ーダ1.u+L%溶液中で80°Cの温度で1分間化成
処理を行なった。そして11〕られなアルミニウム合金
板の砂]」に下記組成のノアゾ系感光液を17m6/ 
dm2の膜厚に塗布し感光性印刷版を作った。
Example 2 The cooling rate of the portion corresponding to 411 on the rear surface of the aluminum alloy C of the present invention shown in Table 3 is υi at 2°C/SeC
Built. After this SIζ mass is 590”CX 41-1
Then, hot rolling was completed at 4 m + 11 thickness and 260°C, and after cold rolling to 1 + 1111 + thickness, heating and cooling rate was 5 (50 at 10'c'/III in).
Intermediate annealing was performed at 0° C. for 0 seconds, and further cold rolling was performed to obtain a thickness of 0.5 mm. This was rolled to form an 11th surface under the same conditions as in Example 1 to produce a rough-faced plate with a thickness of 0.2 m+n. This (geometric properties are shown in Table 4. Continued, 6Aa
20LIIL%'N Medium Terrorism A/den:'
, 20 seconds under %M conditions, and then sodium silicate 1. Chemical conversion treatment was performed in a u+L% solution at a temperature of 80°C for 1 minute. Then, add 17m6 of a noazo photosensitive liquid with the following composition to 11〕Sand of aluminum alloy plate].
A photosensitive printing plate was prepared by coating to a film thickness of dm2.

P−ノアジノフェニルアミン・ホルムアルデヒド縮合物
PFb塩(ノアゾニウム塩)0.428F)−ヒドロキ
シフェニルメタクリルアミド・アクリロニトリル、アク
リル酸エチルメタクリル酸の共重合体 6. OF: ビクトリアピュアーブルーBOH(保土谷化学社製) 
0.1.3.; ポリアクリル酸(日本純薬社製、ジュリマーAC−1O
L) 0.208 メチルセロソルブ 100+nl この感光印刷版に解像力チャート、ステップタブレット
、ネガフィル11を密着し、メタルハライドランプで露
光を行ない、下記の組成の現像液で未露光部を除去した
ところ、5段ペタにおいて、2%の網点か再現されてい
た。
P-Noazinophenylamine/formaldehyde condensate PFb salt (noazonium salt) 0.428F)-Hydroxyphenylmethacrylamide/acrylonitrile, copolymer of ethyl acrylate methacrylic acid 6. OF: Victoria Pure Blue BOH (manufactured by Hodogaya Chemical Co., Ltd.)
0.1.3. ; Polyacrylic acid (manufactured by Nippon Pure Chemical Industries, Ltd., Jurimar AC-1O
L) 0.208 Methyl Cellosolve 100+nl A resolution chart, step tablet, and negative film 11 were adhered to this photosensitive printing plate, and exposure was performed using a metal halide lamp. When the unexposed areas were removed using a developer having the composition shown below, a 5-stage peta Only 2% halftone dots were reproduced.

ベンノルアルコール 30+111 炭酸ナトリ゛クム 58 亜硫酸ナトリウム 5ε イソプロピルナフタリンスルホン 0g 水 11 このように作られた刷版を実施例1と同様にオフセット
印刷機にかけて印刷試験を行なったが、非画像部の汚れ
もなく、5万枚の良好な印刷物が得られtこ。
Bennol alcohol 30 + 111 Sodium carbonate 58 Sodium sulfite 5ε Isopropylnaphthalene sulfone 0 g Water 11 The plate thus prepared was subjected to a printing test on an offset printing machine in the same manner as in Example 1, but stains in non-image areas were also observed. 50,000 good quality prints were obtained.

実施例3 実施例2のプレスtU面材を1.51%硝酸浴で30℃
、電流密度!50A/cbn2で15秒電気化学エツチ
ングを行なった後、実施例2と同一の処理を施し、刷版
を作製した。この刷版は5段ペタにおいて2%の網点が
再現されており、また、この刷版を実施例1と同様にオ
フセット印刷機にかげて印刷試験を行なったか、非画像
部の汚れもなく、5万枚の良好な印刷物か1z1.られ
な。
Example 3 The pressed tU surface material of Example 2 was heated at 30°C in a 1.51% nitric acid bath.
,Current density! After performing electrochemical etching at 50 A/cbn2 for 15 seconds, the same treatment as in Example 2 was performed to prepare a printing plate. This printing plate reproduces a halftone dot of 2% in 5-stage peta, and the printing test was carried out by using this printing plate in an offset printing machine in the same way as in Example 1, and there was no stain in the non-image area. , 50,000 good prints or 1z1. Rarena.

さらに、実施例2および3と同一条件で作製した刷版に
ついて非画像部の汚れにくさ、汚れ回復のし易さについ
て比較した。印刷中にIJi ”、の水の供給を停止し
て汚れが発生するまでの印刷枚数(汚れにくさ)は実施
例2の刷版が7枚、実施例3の刷版が1)枚であった。
Furthermore, printing plates prepared under the same conditions as in Examples 2 and 3 were compared in terms of resistance to staining in non-image areas and ease of stain recovery. The number of prints (difficulty in staining) until the water supply of IJi'' was stopped during printing and stains occurred was 7 sheets for the printing plate of Example 2 and 1 sheet for the printing plate of Example 3. Ta.

次に、非画像部に全面インキを(=1着させた状態で水
の供給を再開し、非画像部から完全tこ)りれかなくな
るまでの印刷枚数(汚れ回復のし易さ)は、実施例2か
・12枚、実施例3が36枚であった。このように、プ
レス粗面化材を電解粗面化することによ1)版の汚れに
くさおよび汚れ回復のし易さは改善される。さらに、プ
レス粗面化材を電解粗面化したものは印刷中の水上りの
状態の見易さの点も改善されていた。
Next, restart the water supply with one ink applied to the entire surface of the non-image area, and calculate the number of prints (ease of stain recovery) until the ink is completely removed from the non-image area. , Example 2 had 12 sheets, and Example 3 had 36 sheets. As described above, by electrolytically roughening the press surface roughening material, 1) resistance to staining of the plate and ease of stain recovery are improved. Furthermore, when the surface of the press surface roughening material was electrolytically roughened, the visibility of the water rising state during printing was also improved.

実施例4 第3表に示す本発明アルミニウム合金りを面側後の表面
に相当する部分の冷却速度が2°C/seeとなるよう
に@遣を行ない、得られた@塊を面側後590℃X4H
r均熱し、次に4111111厚、260°Cで熱間圧
延を終了し、さらに、0.5+nmlゾまで冷開圧延を
行なった。次に、除熱・徐冷方式で360°CX2Hr
の中間焼鈍を行ない、これを実施例1と同様の条件で粗
面化圧延し、0.2m+n厚の本11面板を作った。こ
の(幾(成約性質をfJS.4表に示す。続けて、1.
5u+t%塩酸浴、浴温25°C、電流密度50A/d
1112で10秒間電解エツチングを施したアルミニウ
ム合金板を、42u+t%燐酸浴中で電流密度3A/d
m2、浴温25°Cで5分間陽極酸化処理を行ない、下
記組成の光二量化型7オトポリマー感光液で]4m8/
dm2の膜厚に塗布し感光性印刷版を作製した。
Example 4 The aluminum alloy of the present invention shown in Table 3 was heated so that the cooling rate of the portion corresponding to the surface after the face side was 2°C/see, and the obtained @ lump was heated after the face side. 590℃×4H
After soaking, hot rolling was completed at 260° C. to a thickness of 4111111, and further cold open rolling was performed to a thickness of 0.5+nml. Next, heat is removed and slowly cooled to 360°C for 2 hours.
This was subjected to intermediate annealing and then roughened and rolled under the same conditions as in Example 1 to produce an 11-sided plate with a thickness of 0.2 m+n. The characteristics of this contract are shown in table fJS.4.Continuing, 1.
5u+t% hydrochloric acid bath, bath temperature 25°C, current density 50A/d
1112 for 10 seconds was electrolytically etched in a 42u+t% phosphoric acid bath at a current density of 3A/d.
m2, anodized for 5 minutes at a bath temperature of 25°C, using a photodimerizable type 7 othopolymer photosensitive solution with the following composition]4m8/
A photosensitive printing plate was prepared by coating to a film thickness of dm2.

[れ−フェニレンジアクリル酸ノエチルエステルと1・
4−ノヒドロキシエトキシーシクロー・キャンとの縮合
で1(1られたポリエステル 4.0g2−ベンゾイル
メチレン−1−メチル−β−ナフトチアゾリン 0.3
2u 安息香酸 o、16村 ハイドロキノン 0.0!i8 7タロシアニンブルー(顔料) 0.88モノクロロベ
ンゼン IQ(1+11 得られた感光性平版印刷版に網点チャー1・、ステップ
タブレット、ネガフィルムを密χ1してメタルハライl
”プンプで露光し、下記組成の現像液で未露光部を除去
した。
[Re-phenylene diacrylic acid noethyl ester and 1.
Polyester obtained by condensation with 4-hydroxyethoxycyclocan 4.0 g 2-benzoylmethylene-1-methyl-β-naphthothiazoline 0.3
2u benzoic acid o, 16mura hydroquinone 0.0! i8 7 Talocyanine Blue (pigment) 0.88 Monochlorobenzene IQ (1+11 The resulting photosensitive planographic printing plate was coated with halftone dot char 1, step tablet, and negative film to a density of χ1, and metal halide l
``I exposed it to light using Pump, and removed the unexposed areas using a developer with the following composition.

4−ブチロラクトン 500+nl トリエタノールアミン 5oInl グリセリン 50ロ11 アビエチン酸メチル 51n1 水添ウツドレノン(ハーキュレスバウク−41製ステイ
ベライトレジン) 0,5B 湿潤剤(デュポン社製ゾニールA) 4.5mlこの刷
版は5段ペタにおいて、1%の網点か再現されていた。
4-Butyrolactone 500+nl Triethanolamine 5oInl Glycerin 50-11 Methyl abietate 51n1 Hydrogenated utudrenone (Stabelite resin manufactured by Hercules Bauk-41) 0.5B Wetting agent (Zonyl A manufactured by DuPont) 4.5ml This printing plate Only 1% halftone dots were reproduced in 5-stage peta.

次に、実施例1と同様にオフセット印刷(幾に取付けて
印刷試験を行なったところ、水上りも見易く、汚れも発
生せずに10万枚の良好な印刷物か得られた。
Next, in the same manner as in Example 1, a printing test was carried out by attaching it to an offset printing system, and 100,000 good prints were obtained, with water rises being easy to see and no stains occurring.

比較例 鋼製ロールを回転させながら砥石で研磨を行ない、線状
模様を有する圧延ロールを作製した。この圧延ロールを
用いて実施例1と同様な方法でアルミニウム合金を圧延
し、中心線平均粗さ〕、4μの線状模様の砂目を形成腰
硫酸20LIIL%浴中で電流密度!5A/clIn2
、処理時間20秒でアルマイト処理を行なった後、実施
例1と同様のO−キノンジアンド系感光液を20B/ 
dh+”の膜厚に塗布し、露光現像を行なったところ中
間調部分に砂目の線状模様の筋が認められた。さらに、
刷版をオフセット印刷機にかけて印刷試験を行なったが
、砂目の方向か一方向だけであるためか、汚れが発生し
易く、良好な印刷物が判られなかった。
Comparative Example A rolling roll having a linear pattern was produced by polishing a steel roll with a grindstone while rotating it. Using this rolling roll, an aluminum alloy was rolled in the same manner as in Example 1 to form grains in a linear pattern with a centerline average roughness of 4μ and a current density of 20LIIL% in a sulfuric acid bath. 5A/clIn2
After alumite treatment for 20 seconds, the same O-quinone diand photosensitive solution as in Example 1 was applied to 20B/
When it was applied to a film thickness of dh+'' and exposed and developed, streaks with a grained line pattern were observed in the halftone area.Furthermore,
A printing test was carried out by using the printing plate on an offset printing machine, but because the grain was only in one direction, stains were likely to occur and it was not possible to find a good printed product.

以上詳細に説明したように、本発明に係る平版印刷版用
高強度アルミニウム合金板は上記の構成を有しているも
のであるか呟印刷版としての機械的性質が良好であり、
かつ、印刷版として取扱い性の極めて良好であるという
ffれな効果を奏するものである。
As explained in detail above, the high-strength aluminum alloy plate for lithographic printing plates according to the present invention has the above-mentioned structure and has good mechanical properties as a printing plate.
Moreover, it has the unique effect of being extremely easy to handle as a printing plate.

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

第1図は耐「折れ」性評価法の説明図、第2図は板厚と
耐力との関係を示す図、第3図は繰返し曲は寿命の説明
図である。 特許出願人 株式会社 神戸製鋼所外1名→〉 ぺ O ゆイ 第1頁の続き
FIG. 1 is an explanatory diagram of the "bending" resistance evaluation method, FIG. 2 is a diagram showing the relationship between plate thickness and yield strength, and FIG. 3 is an explanatory diagram of the life of repeated bending. Patent applicant: 1 person outside Kobe Steel, Ltd.→〉 Peo Yui Continued from page 1

Claims (4)

【特許請求の範囲】[Claims] (1)Mn O,3−2a+t%、Fe 0105−0
.8u+L%を含有し、残部不純物およびAIからなる
アルミニウム・合金の冷間圧延後の板厚か0.05〜0
.31o1oで、この板厚において0.2%耐力が1.
6Kg/τ+l m 2以」二であり、かつ、表面に長
円状のプレス四部を有し、このプレス四部が互に独立、
或いは、一部重なり合って波状模様を形成していること
を特徴とする印刷版用高強度アルミニウム合金板。
(1) MnO, 3-2a+t%, Fe 0105-0
.. The plate thickness after cold rolling of an aluminum alloy containing 8u+L% and the remainder consisting of impurities and AI is 0.05 to 0.
.. 31 o 1 o, the 0.2% proof stress at this plate thickness is 1.
6Kg/τ+l m2 or more, and has four oval press parts on the surface, and these four press parts are independent of each other,
Alternatively, a high-strength aluminum alloy plate for printing plates is characterized in that it partially overlaps to form a wavy pattern.
(2)(1,2%耐力(’Q、2、I匂/+n1l12
)と板厚(t、ll1m)の関係が σ2:32X し+・9≧32 であることを特徴とする特許請求の範囲第1項記載の印
刷版用高強度アルミニウム合金板。
(2) (1,2% yield strength ('Q, 2, I smell/+n1l12
The high-strength aluminum alloy plate for printing plates according to claim 1, characterized in that the relationship between σ2:32X and plate thickness (t, ll1m) is σ2:32X+·9≧32.
(3)アルミニウム合金支持体の表面の長円状プレス凹
部が長軸平均長さ10〜140μI11、短軸平均長さ
7〜80μI11.中心線平均ネ■さ0.3−1.5μ
moであることを特徴とする特許請求の範囲第1項およ
び第2項記載の印刷版用高強度アルミニウム合金板。
(3) The oval pressed depressions on the surface of the aluminum alloy support have a major axis average length of 10 to 140 μI11 and a short axis average length of 7 to 80 μI11. Center line average height 0.3-1.5μ
The high-strength aluminum alloy plate for printing plates according to claims 1 and 2, characterized in that the plate is made of mo.
(4)アルミニウム合金支持体の表面の長円状プレス四
部の密度が200個/ml+1”以」二であることを特
徴とする特許請求の範囲第1項、第2項および第3項記
載の印刷版用高強度アルミニウム合金板。 (S )0.05−0.3mmの板厚において、20μ
I11以下の共晶化合物が500個/IIII+12以
上存在する表面に、プレスにより形成された長円状四部
と電気化学的エツチングにより形成された1〜10μI
11の微細四部とが混在することを特徴とする特許請求
の範囲第1項、第一2項、第3項および第4項記載の印
刷版用高強度アルミニウム合金板。
(4) Claims 1, 2 and 3, characterized in that the density of the four oval presses on the surface of the aluminum alloy support is 200 pieces/ml+1" or more. High strength aluminum alloy plate for printing plates. (S) 20μ in plate thickness of 0.05-0.3mm
On the surface where there are 500 or more eutectic compounds of I11 or less/III+12, there are four oval parts formed by pressing and 1 to 10 μI formed by electrochemical etching.
The high-strength aluminum alloy plate for printing plates according to claims 1, 12, 3, and 4, characterized in that 11 fine parts coexist.
JP17080583A 1983-09-16 1983-09-16 High strength aluminum alloy plate for printing plate Granted JPS6063342A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17080583A JPS6063342A (en) 1983-09-16 1983-09-16 High strength aluminum alloy plate for printing plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17080583A JPS6063342A (en) 1983-09-16 1983-09-16 High strength aluminum alloy plate for printing plate

Publications (2)

Publication Number Publication Date
JPS6063342A true JPS6063342A (en) 1985-04-11
JPH0419292B2 JPH0419292B2 (en) 1992-03-30

Family

ID=15911663

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17080583A Granted JPS6063342A (en) 1983-09-16 1983-09-16 High strength aluminum alloy plate for printing plate

Country Status (1)

Country Link
JP (1) JPS6063342A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6387288A (en) * 1986-09-30 1988-04-18 Fuji Photo Film Co Ltd Production of base for planographic plate

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4410714B2 (en) 2004-08-13 2010-02-03 富士フイルム株式会社 Method for producing support for lithographic printing plate
DE602006001142D1 (en) 2005-04-13 2008-06-26 Fujifilm Corp Method for producing a planographic printing plate support
KR20120101290A (en) 2009-06-26 2012-09-13 후지필름 가부시키가이샤 Light reflecting substrate and process for manufacture thereof
EP2518190A1 (en) 2009-12-25 2012-10-31 FUJIFILM Corporation Insulated substrate, process for production of insulated substrate, process for formation of wiring line, wiring substrate, and light-emitting element

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5239403A (en) * 1975-09-20 1977-03-26 Riken Keikinzoku Kogyo Kk Aluminium alloy printing plate
JPS5463902A (en) * 1977-10-31 1979-05-23 Fuji Photo Film Co Ltd Method of making offset printing plate
JPS5574898A (en) * 1978-12-04 1980-06-05 British Aluminum Co Ltd Za Method of making flat printing plate
JPS581047A (en) * 1981-06-05 1983-01-06 Fuji Photo Film Co Ltd Backing for lithographic printing plate of aluminum alloy

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5239403A (en) * 1975-09-20 1977-03-26 Riken Keikinzoku Kogyo Kk Aluminium alloy printing plate
JPS5463902A (en) * 1977-10-31 1979-05-23 Fuji Photo Film Co Ltd Method of making offset printing plate
JPS5574898A (en) * 1978-12-04 1980-06-05 British Aluminum Co Ltd Za Method of making flat printing plate
JPS581047A (en) * 1981-06-05 1983-01-06 Fuji Photo Film Co Ltd Backing for lithographic printing plate of aluminum alloy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6387288A (en) * 1986-09-30 1988-04-18 Fuji Photo Film Co Ltd Production of base for planographic plate

Also Published As

Publication number Publication date
JPH0419292B2 (en) 1992-03-30

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