JPH03177528A - Aluminum alloy sheet stock for supporting body of printing form plate - Google Patents
Aluminum alloy sheet stock for supporting body of printing form plateInfo
- Publication number
- JPH03177528A JPH03177528A JP31680989A JP31680989A JPH03177528A JP H03177528 A JPH03177528 A JP H03177528A JP 31680989 A JP31680989 A JP 31680989A JP 31680989 A JP31680989 A JP 31680989A JP H03177528 A JPH03177528 A JP H03177528A
- Authority
- JP
- Japan
- Prior art keywords
- treatment
- plate
- printing
- aluminum alloy
- sheet stock
- 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
- 238000007639 printing Methods 0.000 title claims abstract description 55
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 31
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 17
- 229910052733 gallium Inorganic materials 0.000 claims abstract description 9
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 238000011282 treatment Methods 0.000 abstract description 60
- 238000007788 roughening Methods 0.000 abstract description 42
- 238000000034 method Methods 0.000 abstract description 26
- 238000000137 annealing Methods 0.000 abstract description 18
- 238000005098 hot rolling Methods 0.000 abstract description 9
- 238000005097 cold rolling Methods 0.000 abstract description 8
- 238000005266 casting Methods 0.000 abstract description 5
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- 229910052759 nickel Inorganic materials 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 238000007670 refining Methods 0.000 abstract description 3
- 238000010186 staining Methods 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 229910052710 silicon Inorganic materials 0.000 abstract 2
- 238000004381 surface treatment Methods 0.000 description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 16
- 239000002585 base Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 11
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- 239000007864 aqueous solution Substances 0.000 description 8
- 238000011161 development Methods 0.000 description 8
- 238000005530 etching Methods 0.000 description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 238000000265 homogenisation Methods 0.000 description 5
- 238000007645 offset printing Methods 0.000 description 5
- 238000007743 anodising Methods 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 238000009749 continuous casting Methods 0.000 description 4
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 4
- -1 hexafluorophosphate Chemical compound 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 239000010407 anodic oxide Substances 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 150000008049 diazo compounds Chemical class 0.000 description 3
- 238000000866 electrolytic etching Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910017604 nitric acid Inorganic materials 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- HSJKGGMUJITCBW-UHFFFAOYSA-N 3-hydroxybutanal Chemical compound CC(O)CC=O HSJKGGMUJITCBW-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000002048 anodisation reaction Methods 0.000 description 2
- 238000003486 chemical etching Methods 0.000 description 2
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000012954 diazonium Substances 0.000 description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Natural products O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 2
- 229960002050 hydrofluoric acid Drugs 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Natural products CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 1
- 101100179406 Caenorhabditis elegans iff-1 gene Proteins 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229940126062 Compound A Drugs 0.000 description 1
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 206010034972 Photosensitivity reaction Diseases 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 241001648319 Toronia toru Species 0.000 description 1
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000007824 aliphatic compounds Chemical class 0.000 description 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- IVRMZWNICZWHMI-UHFFFAOYSA-N azide group Chemical group [N-]=[N+]=[N-] IVRMZWNICZWHMI-UHFFFAOYSA-N 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229940114081 cinnamate Drugs 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 150000001989 diazonium salts Chemical class 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052914 metal silicate Inorganic materials 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000003504 photosensitizing agent Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- WBYWAXJHAXSJNI-VOTSOKGWSA-M trans-cinnamate Chemical compound [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000004246 zinc acetate Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明はオフセット印刷用アルミニウム合金支持体ま
たは平版印刷用アルミニウム合金支持体として使用され
るアルミニウム合金素板（圧延板）に関するものであり
、特に電気化学的粗面化処理に適し、しかも印刷中にお
いて非画像部の汚れの生じにくいオフセット印刷用もし
くは平版印刷用のアルミニウム合金支持体用素板に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to an aluminum alloy base plate (rolled plate) used as an aluminum alloy support for offset printing or an aluminum alloy support for planographic printing, and is particularly applicable to electrochemical The present invention relates to a base plate for an aluminum alloy support for offset printing or planographic printing that is suitable for surface roughening treatment and is less likely to cause stains in non-image areas during printing.
従来の技術
一般にオフセット印刷版もしくは平版印刷版としては、
アルミニウム合金素板の表面に粗面化処理、陽極酸化処
理などの表面処理を施して支持体とし、その支持体上に
感光性物質を塗布、乾燥させて所謂ＰＳ板とし、そのＰ
Ｓ板上に画像露光、現像、ガム引き等の製版処理を施し
たものが使用されている。このような製版処理の過程に
おいて、現像処理により未溶解で残留した感光層は画像
部を形成し、−万感光層が除去されてその下のアルミニ
ウム表面が露出した部分は親水性のため水受容部となっ
て非画像部を形成する。Conventional technology Generally speaking, offset printing plates or lithographic printing plates are
The surface of an aluminum alloy base plate is subjected to surface treatments such as roughening treatment and anodizing treatment to form a support, and a photosensitive material is applied onto the support and dried to form a so-called PS plate.
The plate that has been subjected to plate-making processes such as image exposure, development, and gumming on an S plate is used. In this plate-making process, the photosensitive layer that remains undissolved by the development process forms an image area, and the area where the photosensitive layer is removed and the underlying aluminum surface is exposed is hydrophilic and therefore absorbs water. area to form a non-image area.
ところでこのようなオフセット印刷用もしくは平版印刷
用の支持体としては、一般に軽量でかつ表面処理性、加
工性に優れたアルミニウム合金板が使用される。このよ
うな目的のアルミニウム合金板としては、従来は、Ｉｔ
ｓ ＾１０５０． Ｉｔｓ ＾１１００゜Ｉｔｓ＾３
Ｇ３等からなる板厚０，１〜０．５ｗ程度のアルミニウ
ム合金圧延板が使用されており、このようなアルミニウ
ム圧延板は、表面を粗面化し、その後必要に応じて陽極
酸化処理を施して印刷版に使用されている。具体的には
、特開昭４８〜４９５０１号に記載されている機械的粗
面化処理、化学的エツチング処理、陽極酸化皮膜処理を
順に施したアルミニウム平版印刷版、あるいは特開昭５
１１４６２３４号に記載されている電気化学的処理、後
処理、陽極酸化処理を順に施したアルミニウム平版印刷
版、特公昭４８−２８１２３号に記載されている化学エ
ツチング処理、陽極酸化処理を順に施したアルミニウム
平版印刷版、あるいは機械的粗面化処理後に特公昭４８
−２８１２３号に記載されている処理を施したアルミニ
ウム平版印刷版等が知られている。By the way, as a support for such offset printing or planographic printing, an aluminum alloy plate is generally used, which is lightweight and has excellent surface treatment properties and workability. Conventionally, the aluminum alloy plate for this purpose is It
s ＾1050. Its ＾1100゜Its＾3
An aluminum alloy rolled plate made of G3 or the like with a thickness of about 0.1 to 0.5w is used, and the surface of such an aluminum rolled plate is roughened and then anodized if necessary. used in the printed version. Specifically, aluminum lithographic printing plates that have been subjected to mechanical roughening treatment, chemical etching treatment, and anodic oxidation film treatment described in JP-A-48-49501, or JP-A-5
Aluminum lithographic printing plate subjected to electrochemical treatment, post-treatment, and anodization treatment described in Japanese Patent Publication No. 1146234, and aluminum subjected to chemical etching treatment and anodization treatment described in Japanese Patent Publication No. 48-28123. Lithographic printing plate or after mechanical roughening treatment
Aluminum lithographic printing plates and the like subjected to the treatment described in No. 28123 are known.
発明が解決しようとする課題
前述のような印刷用アルミニウム合金圧延板を実際に印
刷に使用するにあたっては、先ず既に述べたように素板
表面を機械的方法、化学的方法、電気化学的方法のうち
いずれか１種、または２種以上の朝合わされた工程によ
って粗面化した後、必要に応じて印刷性向上のために厚
さ ０．５〜３１Ｌｍの陽極酸化皮膜を生成し、その後
感光剤を塗布して露光し、現像等の製版処理を行ない、
印刷機の円筒形版胴に巻付け、湿し水の存在下において
インクを画像部に付着させ、ゴムブランケットに転写後
、紙面に印刷する。Problems to be Solved by the Invention When actually using the above-mentioned rolled aluminum alloy plate for printing, the surface of the base plate is first subjected to mechanical, chemical, and electrochemical methods, as described above. After roughening the surface by a combined process of one or more of these, an anodic oxide film with a thickness of 0.5 to 31 Lm is formed to improve printability as necessary, and then a photosensitive agent is applied. is coated, exposed, and subjected to plate-making processes such as development.
The ink is wrapped around the cylindrical plate cylinder of a printing press, the ink is applied to the image area in the presence of dampening water, and after being transferred to a rubber blanket, it is printed on paper.
以上のようにして使用される印刷用アルミニウム合金圧
延板には、次のような特性が要求される。The aluminum alloy rolled plate for printing used as described above is required to have the following properties.
すなわち先ず第１には、粗面化処理によって均一に凹凸
を形成することができ、粗面化処理後に不規則なムラが
生じたり、圧延方向に沿うストリークスと称される筋状
のムラが生じたすせず、かつ適当な色調を呈することが
要求される。ここで、粗面化処理によって均一な凹凸を
形成できることを一般的に砂目立て性が良いと言い、ま
た粗面化後の不規則なムラを面質ムラと称する。このよ
うに砂目立て性が良好で、面質ムラやストリークスが生
ぜずにかつ適正な色調が得られるように均一かつ適切に
粗面化させ得る性能を以下「表面処理性」と称す。That is, first of all, unevenness can be formed uniformly by the surface roughening treatment, and irregular unevenness may occur after the surface roughening treatment, or streak-like unevenness called streaks along the rolling direction. It is required to have no smudge and to exhibit an appropriate color tone. Here, the ability to form uniform irregularities by surface roughening treatment is generally referred to as good graining properties, and the irregular unevenness after surface roughening is referred to as surface quality unevenness. The ability to uniformly and appropriately roughen a surface so as to have good graining properties and to obtain an appropriate color tone without causing surface unevenness or streaks is hereinafter referred to as "surface treatment properties".
次に第２には、印刷中に非画像部にインク汚れが付着し
ないことが要求される。このような非画像部インクが付
着することに関する性能を以下「耐インク汚れ性」と称
す。Secondly, it is required that ink stains do not adhere to non-image areas during printing. The performance related to the adhesion of ink to non-image areas is hereinafter referred to as "ink stain resistance".
これらの特性のうち、表面処理性が劣る場合には、粗面
化処理後の表面に面質ムラやストリークスが生じて商品
価値が低下する。また粗面化処理後の表面凹凸（砂目）
は耐刷力や画像の鮮明さにも大きな影響を及ぼすから、
表面処理性が良好であって粗面化処理後の凹凸が均一て
ムラがないことは、印刷版として基本的に重要な条件で
ある。Among these characteristics, if the surface treatment properties are poor, uneven surface quality or streaks will occur on the surface after roughening treatment, resulting in a decrease in commercial value. Also, surface irregularities (grains) after roughening treatment.
This has a great effect on printing durability and image clarity.
It is a fundamentally important condition for a printing plate that the surface treatment property is good and that the unevenness after the roughening treatment is uniform and even.
ここで、粗面化処理を電解エツチングにより行なう場合
には、電解条件や電解液等によって粗面の状態が変化す
ることはもちろんであるが、電解エツチングの現象がア
ルミニウム表面と電解液との電気化学的反応である以上
、アルミニウム素材自体の特性（表面処理性）も電解エ
ツチングによる粗面化の状態に当然に影響する。しかし
ながら従来の印刷用アルミニウム合金素板においては、
粗面化に適した合金成分や組織状態について深く検討が
なされてはおらず、必ずしも充分な表面処理性が得られ
ていたとは言えないのが実情である。When surface roughening treatment is carried out by electrolytic etching, it goes without saying that the condition of the roughened surface changes depending on the electrolytic conditions and electrolyte, but the phenomenon of electrolytic etching is caused by the electrical contact between the aluminum surface and the electrolyte. Since it is a chemical reaction, the characteristics of the aluminum material itself (surface treatment properties) naturally affect the state of surface roughening caused by electrolytic etching. However, in conventional printing aluminum alloy blank plates,
The reality is that sufficient surface treatment properties have not always been achieved, as no deep study has been conducted on the alloy components and microstructural conditions suitable for surface roughening.
また耐インク汚れ性に関しては、印刷中に非画像部にイ
ンクが付着して印刷物が汚れることは印刷版として基本
的に避けなければならないことである。Regarding ink stain resistance, printing plates must basically avoid ink from adhering to non-image areas during printing and staining the printed matter.
この発明は以上の事情を背景としてなされたもので、前
述のような表面処理性および耐インク汚れ性が良好な印
刷版支持体用アルミニウム合金素板を提供することを目
的とするものである。This invention was made against the background of the above-mentioned circumstances, and it is an object of the present invention to provide an aluminum alloy base plate for a printing plate support that has good surface treatment properties and ink stain resistance as described above.
課題を解決するための手段
本発明者等は、前述の課題を解決するべ（、先ず合金成
分と表面処理性との関係について種々実験・検討を重ね
たところ、表面処理性には微量添加元素が大きな影響を
与えることを見出した。さらに、耐インク汚れ性も微量
添加元素を調繋することによって良好になし得ることを
見出しいこカ発明をなすに至ったのである。Means for Solving the Problems The inventors of the present invention have found that in order to solve the above-mentioned problems, the inventors first conducted various experiments and studies on the relationship between alloy components and surface treatment properties, and found that the surface treatment properties depend on small amounts of added elements. Furthermore, they discovered that ink stain resistance can be improved by adjusting trace amounts of additive elements, leading to their invention.
具体的には、この発明の印刷版支持体用アルミニウム合
金素板は、Ｓ ｉ ０．０３〜０．Ｈ％、Ｆｅｌｌ〜０
．５％、Ｃｕ ０．００１〜０．０３％、Ｇａ ０
．００５〜００２０％、Ｎ ｉ ０．００１〜０．０
３％、Ｔ ｉ ０．００２〜０．０５％を含有し、か
っＧａとＴ１の合計含有量が０．０１０〜０．０５０％
の範囲内にあり、残部がＡＪおよび不可避的不純物より
なることを特徴とするものである。Specifically, the aluminum alloy base plate for a printing plate support of the present invention has an Si of 0.03 to 0.03. H%, Fell~0
．． 5%, Cu 0.001-0.03%, Ga 0
．． 005-0020%, Ni 0.001-0.0
3%, Ti 0.002-0.05%, and the total content of Ga and T1 is 0.010-0.050%.
It is characterized by being within the range of , with the remainder consisting of AJ and unavoidable impurities.
作 用
先ずこの発明の印刷版支持体用アルミニウム合金素板の
成分限定理由を述べる。Function First, the reason for limiting the components of the aluminum alloy base plate for printing plate support of this invention will be described.
Ｓ ｉ ：
５ｉｌｌが０．０３％未満では表面処理性が劣り、電気
化学的粗面化処理後の粗面化面の均一性が劣る。If S i :5ill is less than 0.03%, the surface treatment properties will be poor and the uniformity of the roughened surface after electrochemical roughening treatment will be poor.
一方Ｓｉ量がＯＪＯ％を越えれば、粗面化処理後の色調
が黒味を帯び過ぎて色調不適当となるとともに、粗面の
均一性が劣り、また耐インク汚れ性も低下する。したが
ってＳｉ量は０．０３〜０．３０％の範囲内とした。On the other hand, if the amount of Si exceeds OJO%, the color tone after the surface roughening treatment will be too blackish and the color tone will be inappropriate, the uniformity of the rough surface will be poor, and the ink stain resistance will also decrease. Therefore, the amount of Si was set within the range of 0.03 to 0.30%.
Ｆｅ：
Ｆｅｆｔが０．１％未満では表面処理性が劣り、電気化
学的粗面化処理後の粗面化面の均一性が劣るとともに、
機械的強度も劣る。一方Ｆｅ量が０．５％を越えれば耐
インク汚れ性が低下するとともに、粗面化処理後の色調
が黒味を帯び過ぎて色調不適当となる。したがってＦｅ
量は０．１〜０．５％の範囲内とした。Fe: If Feft is less than 0.1%, surface treatment properties will be poor, and the uniformity of the roughened surface after electrochemical roughening treatment will be poor.
Mechanical strength is also poor. On the other hand, if the amount of Fe exceeds 0.5%, the ink stain resistance will decrease and the color tone after the surface roughening treatment will be too blackish, resulting in an inappropriate color tone. Therefore, Fe
The amount was within the range of 0.1-0.5%.
Ｃｕ：
Ｃｕは電気化学的粗面化処理においてピットを微細化し
て、粗面化面を均一にする効果の大きい元素であり、こ
の効果は微量のＣｕ添加でも有効である。しかしながら
Ｃｕ量が０．００１％未満ではその効果は小さい。一方
Ｃｕ量が０．０３％を越えれば粗面の均一性が低下し、
耐インク汚れ性、も低下するから、Ｃｕ量は０． ＩＩ
Ｎ −０，０３％の範囲内とした。Cu: Cu is an element that is highly effective in making pits finer and uniform in the roughened surface in electrochemical surface roughening treatment, and this effect is effective even when a small amount of Cu is added. However, if the amount of Cu is less than 0.001%, the effect is small. On the other hand, if the Cu amount exceeds 0.03%, the uniformity of the rough surface will decrease,
Ink stain resistance also decreases, so the amount of Cu should be 0. II
It was set within the range of N -0.03%.
Ｇａ：
Ｇａも電気化学的粗面化処理においてピットを微細化し
て、粗面化面を均一にする効果が大きい元素であり、そ
の効果は微量のＧａ添加でも有効である。しかしながら
、Ｇａ量が０．００５％未満ではその効果が小さく、一
方Ｇａ量がり、 ［１２（１％を越えれば電気化学的粗
面化処理によって均一なピットが得られなくなる。した
がってＧａ量は ０．００５〜０．０２０％の範囲内と
した。Ga: Ga is also an element that has a great effect of making pits finer and making the roughened surface uniform in electrochemical surface roughening treatment, and this effect is effective even when a small amount of Ga is added. However, if the Ga content is less than 0.005%, the effect is small, while the Ga content increases, [12 (If it exceeds 1%, uniform pits cannot be obtained by electrochemical surface roughening treatment. Therefore, the Ga content is 0. It was set within the range of .005 to 0.020%.
Ｎｌ：
Ｎｌも電気化学的粗面化処理においてピットを微細化し
、これにより粗面化面を均一にする効果を有する。但し
Ｎｉ量が０．０Ｑ１％未満ではその効果は少ない。一方
Ｎｉは金属間化合物中に合金化されやすい元素であり、
そのためＮ１ｆｌが０．０３９６を越えれば腐食されや
すくなって耐インク汚れ性を低下させる。したがってＮ
ｉｆｆ１は０．００１〜０．０３？６の範囲内とした。Nl: Nl also has the effect of making pits finer in electrochemical surface roughening treatment, thereby making the roughened surface uniform. However, if the Ni amount is less than 0.0Q1%, the effect is small. On the other hand, Ni is an element that is easily alloyed in intermetallic compounds,
Therefore, if N1fl exceeds 0.0396, it becomes susceptible to corrosion and the ink stain resistance decreases. Therefore N
iff1 was set within the range of 0.001 to 0.03?6.
Ｔｉ
Ｔｉの添加は鋳塊結晶粒の微細化に有効であり、これに
より鋳造組織に起因するストリークスの発生防止に有効
であって、その結果として電気化学的粗面化処理による
ストリークの発生防止にも有効である。またＴｉは電気
化学的粗面化処理において均一にピットを形成させる上
においても有効である。但しＴｉｆｌが１００２％未満
ではこれらの効果は少なく、一方Ｔｉ１ｌが０１１５％
を越えれば、結晶粒の微細化効果は飽和してしまい、ま
た電気化学的粗面化処理においては逆に不均一なピット
を生成し易くなる。したがってＴｉ１ｌは０．００２〜
０．０５％の範囲内とした。Ti The addition of Ti is effective in refining the ingot crystal grains, thereby preventing the occurrence of streaks caused by the casting structure, and as a result, preventing the occurrence of streaks due to electrochemical surface roughening treatment. It is also effective for Ti is also effective in forming pits uniformly in electrochemical surface roughening treatment. However, when Tifl is less than 1002%, these effects are small, while when Ti1l is 0115%
If it exceeds this, the grain refining effect will be saturated, and in the electrochemical surface roughening treatment, it will be more likely to produce non-uniform pits. Therefore, Ti1l is 0.002 ~
It was set within the range of 0.05%.
なおＧａとＴｉは電気化学的粗面化処理において複合作
用を及ぼす。すなわち、Ｇａ添加量とＴｉ添加量との合
計量が０．ｔｌｌ（１％未満では電気化学的粗面化処理
によるピットが均一、微細とならず、一方その合計量が
０．０５０％を越えれば電気化学的粗面化処理によるピ
ットが不均一となる。したがってＧａとＴｉの合計添加
量は０．０１０〜０．０５０％の範囲内とする必要があ
る。Note that Ga and Ti have a combined effect in the electrochemical surface roughening treatment. That is, the total amount of Ga addition amount and Ti addition amount is 0. If the total amount exceeds 0.050%, the pits caused by the electrochemical roughening treatment will become non-uniform. Therefore, the total amount of Ga and Ti added must be within the range of 0.010 to 0.050%.
以上の各成分のほかはＡｌおよび不可避的不純物とすれ
ば良い。なお不純物量としては、ＪＩ５１０５０合金相
当程度０不純物量（Ｍｎ０．０５％以下、Ｍ ｇ ０．
０５％以下、Ｚ ｎ ０．０５％以下、その他０．０５
％以下）程度であれば、この発明で目的とする印刷版支
持体用アルミニムラ合金素板としての特性を損なうおそ
れはない。In addition to the above-mentioned components, Al and inevitable impurities may be used. The amount of impurities is about 0 (Mn 0.05% or less, M g 0.0%) equivalent to JI51050 alloy.
0.05% or less, Z n 0.05% or less, other 0.05
% or less), there is no risk of impairing the properties of the aluminum uneven alloy base plate for a printing plate support, which is the object of the present invention.
次にこの発明の印刷版支持体用アルミニウム合金素板の
製造方法について説明する。Next, a method for producing an aluminum alloy base plate for a printing plate support according to the present invention will be explained.
先ず前述のような成分組成を有するアルミニウム合金溶
湯を常法に従って溶製し、鋳造する。この鋳造法として
は、半連続鋳造法（ＤＣ鋳造法）が一般的であるが、省
エネルギや機械的性質向上等の観点から薄板連続鋳造法
（連続鋳造圧延法）を適用しても良い。得られた鋳塊は
、均質化処理、熱間圧延、冷間圧延、必要に応じて中間
焼鈍等の工程を経て最終的に０．１０＝ ０．５０ｍｍ
程度の板厚とする。First, a molten aluminum alloy having the above-mentioned composition is melted and cast according to a conventional method. As this casting method, a semi-continuous casting method (DC casting method) is generally used, but a thin plate continuous casting method (continuous casting and rolling method) may be applied from the viewpoint of energy saving and improvement of mechanical properties. The obtained ingot undergoes processes such as homogenization treatment, hot rolling, cold rolling, and intermediate annealing if necessary, to a final size of 0.10 = 0.50 mm.
The thickness of the board shall be approximately.
ここで、鋳造後の均質化処理は、中間焼鈍による再結晶
粒を微細化させるとともに、鋳塊中のＦｅ、Ｓｉ、Ｔｉ
、Ｇａ、Ｃｕ、Ｎｉ等の元素の偏析を解消させて均一な
分布とさせるために必要な工程であり、前述のような元
素の分布が均一であるほど、電気化学的粗面化処理によ
って均一な粗面が得られるようになる。この均質化処理
の条件としては、４５０〜６１０℃の範囲内の温度で１
〜４８時間の保持とすることが適当である。なお均質化
処理のための加熱と熱間圧延のための加熱とは２度に分
けて行なう必要はなく、均質化処理と熱間圧延前の加熱
とを兼ねて１回の加熱を行なった後、直ちに熱間圧延を
行なっても良い。いずれの場合も、熱間圧延開始温度は
４００〜５５０℃の範囲内とすることが好ましい。Here, the homogenization treatment after casting refines the recrystallized grains by intermediate annealing, and also
This is a necessary process to eliminate the segregation of elements such as , Ga, Cu, and Ni to achieve a uniform distribution. A rough surface can be obtained. The conditions for this homogenization treatment are as follows: 1.
It is appropriate to hold the sample for 48 hours. It should be noted that the heating for homogenization treatment and the heating for hot rolling do not need to be performed twice; instead, heating is performed once for both homogenization treatment and heating before hot rolling. , hot rolling may be performed immediately. In either case, the hot rolling start temperature is preferably within the range of 400 to 550°C.
熱間圧延後は冷間圧延を施して所要の板厚とするが、熱
間圧延の直後、あるいは冷間圧延の途中において１回ま
たは２回以上の中間焼鈍を施すのが通常である。この中
間焼鈍における焼鈍温度は３００〜６００℃が適当であ
る。中間焼鈍温度が３００℃未満では完全に再結晶せず
、一方６００℃を越えれば表面の酸化が激しくなって表
面の色が変色するとともに、再結晶粒が粗大化するため
、いずれも好ましくない。なおこの中間焼鈍は、バッチ
焼鈍（平均加熱速度２０〜５０℃／ｈ「）でも連続焼鈍
（平均加熱速度数℃〜数十℃／５ｅＣ）でも良いが、バ
ッチ焼鈍を４００℃以上で行なうかまたは連続焼鈍を行
なえば、その後の圧延材の耐熱軟化性が向上し、そのた
め印刷版における耐刷性向上のために通常行なっている
加熱処理（いわゆるバーニング処理）によって軟化する
ことを防止できる。すなわち一般に平版印刷版では、露
光、現像処理の後に、加熱処理（バーニング処理）を施
すことによって画像部を強化して、耐刷性を向上させる
ことが多い。このバーニング処理の条件は画像部を形成
している樹脂の種類によっても異なるが、通常は ２０
０〜ｂ
うなバーニング処理によって支持体の強度が低下すれば
、版の取扱いが難しくなったり、多色刷りにおける版の
色合せが困難となってしまったりする。そこで前述のよ
うに ４００℃以上の高温でのバッチ焼鈍かまたは連続
焼鈍を適用すれば、耐熱軟化性が向上する結果、上述の
ような問題が発生することを防止できる。After hot rolling, cold rolling is performed to obtain the required thickness, but intermediate annealing is usually performed once or twice or more immediately after hot rolling or during cold rolling. The appropriate annealing temperature in this intermediate annealing is 300 to 600°C. If the intermediate annealing temperature is less than 300°C, complete recrystallization will not occur, while if it exceeds 600°C, the surface will be severely oxidized, the color of the surface will change, and the recrystallized grains will become coarse, both of which are unfavorable. Note that this intermediate annealing may be either batch annealing (average heating rate of 20 to 50 °C/h) or continuous annealing (average heating rate of several °C to several tens of °C/5eC), but batch annealing may be performed at 400 °C or higher or Continuous annealing improves the heat softening resistance of the subsequently rolled material, and therefore prevents it from softening during heat treatment (so-called burning treatment) that is normally performed to improve the printing durability of printing plates. In lithographic printing plates, after exposure and development, heat treatment (burning treatment) is often applied to strengthen the image area and improve printing durability.The conditions for this burning treatment are as follows: Although it depends on the type of resin used, it is usually 20
0-b If the strength of the support is reduced by the burning process, it becomes difficult to handle the plate, and it becomes difficult to match the colors of the plate in multicolor printing. Therefore, as described above, if batch annealing or continuous annealing is applied at a high temperature of 400° C. or higher, the heat softening resistance is improved and the above-mentioned problems can be prevented from occurring.
最終冷間圧延工程においては、印刷版支持体として必要
な腰の強さを得るため、耐力がｌ ３ｋｑｆ ／ ｍ＋
ａ以上となるような冷間圧延率が必要であり、具体的に
は５０％以上の検量圧延率が適当である。なお最終の調
質としては、ｌ ３ｋｌ ／ ｍａ以上の耐力が得られ
るならば、Ｈｌｎ、 Ｈ２ｎのいずれでも良い。In the final cold rolling process, in order to obtain the necessary stiffness as a printing plate support, the yield strength is 13kqf/m+
A cold rolling rate of at least a is required, and specifically a calibration rolling rate of at least 50% is appropriate. As for the final tempering, either Hln or H2n may be used as long as a yield strength of l3kl/ma or more can be obtained.
以上のようにして得られるこの発明の印刷版支持体用ア
ルミニウム合金素板を用いて、実際に平版印刷版を作成
するための処理方法について以下に説明する。A processing method for actually producing a lithographic printing plate using the aluminum alloy base plate for a printing plate support of the present invention obtained as described above will be described below.
先ず素板に対しては、表面に粗面化処理を施す。First, the surface of the blank plate is roughened.
この発明のアルミニウム合金素板に対して施す粗面化処
理としては、塩酸または硝酸電解水溶液中で電気化学的
に粗面化する方法が好適である。なおこの電気化学的粗
面化処理の前には、アルミニウム表面を金属ワイヤーで
ひっかくワイヤーグレイニング法、研磨球、研磨剤でア
ルミニウム表面を粗面化するボールグレイニング法、ナ
イロンブラシと研磨剤で表面を粗面化するブラシグレイ
ニング法のような機械的粗面化処理を行なっておいても
良い。更に、機械的粗面化処理の後に酸またはアルカリ
により化学的な予備エツチングを施しても良い。酸でエ
ツチングする場合はエツチングに長時間を要するため、
アルカリでエツチングするのが一般的である。この予備
、Ｔ−ツチングに好１に用いられるアルカリ剤としては
、苛性ソーダ、炭酸ソーダ、アルミン酸ソーダ、メタ珪
酸ソーダ、燐酸ソーダ、水酸化カリウム、水酸化リチウ
ム等があり、この場合の温度と濃度の好ましい範囲はそ
れぞれ２Ｇ−１０（１℃、１〜５０％であり、アルミニ
ウムの溶解量が５〜２０ｇ／ｒｒｆとなるような条件を
適用することが好ましい。As the surface roughening treatment applied to the aluminum alloy base plate of the present invention, a method of electrochemically roughening the surface in a hydrochloric acid or nitric acid electrolytic aqueous solution is suitable. Before this electrochemical roughening treatment, the aluminum surface was scratched using a wire graining method using a metal wire, the ball graining method was used to roughen the aluminum surface using a polishing ball and an abrasive agent, and the aluminum surface was roughened using a nylon brush and an abrasive agent. Mechanical surface roughening treatment such as a brush graining method for roughening the surface may be performed. Further, after the mechanical surface roughening treatment, chemical preliminary etching may be performed using acid or alkali. Etching with acid takes a long time, so
Etching with alkali is common. The alkaline agents preferably used for this preliminary T-touching include caustic soda, soda carbonate, sodium aluminate, sodium metasilicate, sodium phosphate, potassium hydroxide, and lithium hydroxide. The preferable range is 2G-10 (1° C., 1 to 50%), and it is preferable to apply conditions such that the amount of aluminum dissolved is 5 to 20 g/rrf.
上述のように粗面化処理（エツチング）を行なった後に
は、表面に残留する汚れ（スマット）を除去するために
酸洗いを行なうのが通常である。After performing the surface roughening treatment (etching) as described above, pickling is usually performed to remove dirt (smut) remaining on the surface.
この酸洗いに用いられる酸としては、硝酸、硫酸、燐酸
、クロム酸、ふり酸、はうふつ化本素酸などがある。特
に電気化学的粗面化処理後のスマット除去処理には、特
開昭５３−１２７３９号に記載されているような５０〜
９０℃の温度で１５〜６５重量％の硫酸と接触させる方
法や、特公昭４８〜２８１２３号に記載されているよう
なアルカリエツチングする方法を適用することが望まし
い。Examples of acids used for this pickling include nitric acid, sulfuric acid, phosphoric acid, chromic acid, fluoric acid, and fluoric acid. In particular, for smut removal treatment after electrochemical surface roughening treatment, 50~
It is desirable to apply a method of contacting with 15 to 65% by weight sulfuric acid at a temperature of 90 DEG C. or an alkali etching method as described in Japanese Patent Publication No. 48-28123.
以上のようにして処理されたアルミニウム合金板は平版
印刷用支持体として使用することができるが、印刷性向
上のために通常はさらに陽極酸化処理を施す。The aluminum alloy plate treated as described above can be used as a lithographic printing support, but it is usually further subjected to anodizing treatment to improve printability.
陽極酸化処理はこの分野で従来より行なわれている方法
で行なうことができる。具体的には硫酸、リン酸、クロ
ム酸、シュウ酸、スルファミン酸、ベンゼンスルホン酸
などあるいはこれらの２種類以上を組み合わせた水溶液
又は非水溶液中でアルミニウム板に直流または交流の電
流を流すことによりアルミニウム支持体表面に陽極酸化
皮膜を形成することができる。The anodic oxidation treatment can be performed by a method conventionally used in this field. Specifically, aluminum is produced by passing a direct or alternating current through an aluminum plate in an aqueous or non-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. An anodic oxide film can be formed on the surface of the support.
陽極酸化処理の条件は使用される電解液によって種々変
化するので一概には言えないが、一般的には電解液の濃
度が１〜８０％、液温５〜７０℃、電流密度０．５〜６
０Ａ ／ｄｉ、電圧１〜１０ｏＶ１電解時間１０〜１０
０秒の範囲が適当である。The conditions for anodizing treatment vary depending on the electrolyte used, so it cannot be generalized, but in general, the electrolyte concentration is 1-80%, the solution temperature is 5-70°C, and the current density is 0.5-80%. 6
0A/di, voltage 1~10oV1 electrolysis time 10~10
A range of 0 seconds is appropriate.
これらの陽極酸化皮膜処理の内でも、特に英国特許第１
，４１２．７６８号に記載されている硫酸中で高電流密
度で陽極酸化する方法、及び米国特許第３，５１１．６
６１号に記載されている燐酸を電解浴として陽極酸化す
る方法が好ましい。Among these anodic oxidation coating treatments, the British Patent No. 1
, 412.768, and U.S. Pat. No. 3,511.6.
The method of anodic oxidation using phosphoric acid as an electrolytic bath as described in No. 61 is preferred.
陽極酸化されたアルミニウム合金板は更に米国特許第２
．７１４，０６６号及び同第３．１８１゜４６１号に記
載されているようにアルミニウム金属シリケート、例え
ば珪酸ナトリウムの水溶液に＆涜するなどの方法により
処理したり、米国特許第３，８６０，４２６号に記載さ
れているように水溶性金属塩（例えば酢酸亜鉛など）を
含む親水性セルロース（例えばカルボジメチルセルロー
スなど）の下塗り層を設けることもできる。The anodized aluminum alloy plate is further covered by U.S. Patent No.
．． No. 714,066 and US Pat. No. 3,181°461, by methods such as immersion in an aqueous solution of aluminum metal silicates, e.g. sodium silicate; A subbing layer of hydrophilic cellulose (such as carbodimethylcellulose) containing a water-soluble metal salt (such as zinc acetate) may also be provided as described in .
この発明による平版印刷版用アルミニウム合金支持体の
上には、ＰＳ版の感光層として従来より知られている感
光層を設けて感光性平版印刷版を得ることができ、これ
を製版処理して得た平版印刷版はすぐれた性能を有して
いる。On the aluminum alloy support for lithographic printing plates according to the present invention, a photosensitive layer conventionally known as a photosensitive layer of a PS plate can be provided to obtain a photosensitive lithographic printing plate, which is subjected to plate-making processing. The obtained lithographic printing plate has excellent performance.
上記の感光層の組成物としては次のようなものが含まれ
る。The composition of the above-mentioned photosensitive layer includes the following.
＜１） ジアゾ樹脂とバインダーとからなる感光層米
国特許第２，０６３，６３１号及び同第１゜６６７．４
１５号に開示されているジアゾニウム塩とアルドールや
アセタールのような反応性カルボニル基を含有する有機
縮合剤との反応生成物であるジフェニルアミン−ｐ−ジ
アゾニウム塩とフォルムアルデヒドとの縮合生成物（所
謂感光性ジアゾ樹脂）が好適に用いられる。この他の有
用な縮合ジアゾ化合物は特開昭４９−４８００１号、同
４９−４５３２２号、同４９−４５３２３号等に開示さ
れている。<1) Photosensitive layer consisting of diazo resin and binder U.S. Patent Nos. 2,063,631 and 1°667.4
A condensation product of diphenylamine-p-diazonium salt and formaldehyde, which is a reaction product of a diazonium salt disclosed in No. 15 and an organic condensation agent containing a reactive carbonyl group such as an aldol or an acetal, and formaldehyde diazo resin) is preferably used. Other useful condensed diazo compounds are disclosed in JP-A-49-48001, JP-A-49-45322, JP-A-49-45323, and the like.
これらの型の感光性ジアゾ化合物は通常水溶性無機塩の
状態で得られ、したがって水溶液で塗布することができ
る。またこれらの水溶性ジアゾ化合物を特公昭４７−１
１６７号に開示された方法により１個またはそれ以上の
フェノール性水酸基、スルホン酸基、またはその両者を
有する芳香族または脂肪族化合物と反応させ、その反応
生成物である実質的に水不溶性の感光性ジアゾ樹脂を使
用することもできる。また、特開昭５６−１２１０３１
号に記載されているように、ヘキサフルオロ燐酸塩また
はテトラフルオロ硼酸塩との反応生成物として使用する
こともできる。そのほか英国特許第１，３１２゜９２５
号に記載されているジアゾ樹脂も好ましい。These types of photosensitive diazo compounds are usually obtained in the form of water-soluble inorganic salts and can therefore be applied in aqueous solution. In addition, these water-soluble diazo compounds were
167 with an aromatic or aliphatic compound having one or more phenolic hydroxyl groups, sulfonic acid groups, or both, and the substantially water-insoluble photosensitive reaction product thereof. Polymeric diazo resins can also be used. Also, JP-A-56-121031
It can also be used as a reaction product with hexafluorophosphate or tetrafluoroborate, as described in No. Other British Patent No. 1,312゜925
Also preferred are the diazo resins described in No.
（２）Ｏ−キノンジアジド化合物からなる感光層特に好
ましいＯ−キノンジアジド化合物はＯ−ナフトキノンジ
アジド化合物であり、例えば米国特許第２，７６６．１
１８号、同第２，７６７．０９２号、同第２．７７２．
９７２号、同第２．８５９，１１２号、同第２，９０７
゜６６５号、同第３．０４６．１１０号、同第３゜０４
６．１１１号、同第３．０４６，１１５号、同第３．０
４６．１１８号、同第３．０４６゜１１９号、同第３．
０４６，１２０号、同第３゜０４６．１２１号、同第３
，０４６，１２２号、同第３．０４６．１２３号、同第
３．０６１゜４３０号、同第３．１０２．８０９号、同
第３゜１０６．４６５号、同第３，６３５．７０９号、
同第３．８４７，４４３号をはじめ多数の刊行物に記載
されており、これらはいずれも好適に使用することがで
きる。(2) Photosensitive layer comprising an O-quinonediazide compound A particularly preferred O-quinonediazide compound is an O-naphthoquinonediazide compound, for example, U.S. Pat. No. 2,766.1
No. 18, No. 2,767.092, No. 2.772.
No. 972, No. 2.859,112, No. 2,907
゜665, same No. 3.046.110, same No. 3゜04
6.111, 3.046,115, 3.0
No. 46.118, No. 3.046゜119, No. 3.
No. 046,120, No. 3゜046.121, No. 3
, 046,122, 3.046.123, 3.061°430, 3.102.809, 3.106.465, 3,635.709 ,
It is described in numerous publications including No. 3,847,443, and any of these can be suitably used.
（３） アジド化合物とバインダー（高分子化合物）
からなる感光層
例えば英国特許第１，２３５．２ＥＭ号、同第１，４９
５，８６１号、特開昭５１−３２３３１号、同５１−３
６１２８号に記載されているアジド化合物と水溶性また
はアルカリ可溶性高分子化合物からなる組成物のほか、
特開昭５０−５１０２号、同５０−８４３０２号、同５
０−８４３０３号、同５３−１２９８４号に記載されて
いるアジド基を含むポリマーとバインダーとしての高分
子化合物からなる組成物が含まれる。(3) Azide compound and binder (polymer compound)
For example, British Patent No. 1,235.2EM, British Patent No. 1,49
No. 5,861, JP-A-51-32331, JP-A No. 51-3
In addition to the compositions comprising an azide compound and a water-soluble or alkali-soluble polymer compound described in No. 6128,
JP-A-50-5102, JP-A No. 50-84302, JP-A No. 5
Included are compositions comprising a polymer containing an azide group and a polymer compound as a binder, as described in No. 0-84303 and No. 53-12984.
（４） その他の感光性樹脂層
例えば特開昭５２−９６６９６号に開示されているポリ
エステル化合物、英国特許第１１２゜２７７号、同第１
．３１３，３０９号、同第↑。(4) Other photosensitive resin layers, such as polyester compounds disclosed in JP-A-52-96696, British Patent No. 112°277, British Patent No. 1
．． No. 313, 309, same No. ↑.
３４１．００４号、同第１．３７７．７４７号等に記載
のポリビニルシンナメート系樹脂、米国特許第４．０７
２．５２８号、同第４，０７２．５２７号等に記載され
ている光重合型フォトポリマー組成物が含まれる。Polyvinyl cinnamate resins described in No. 341.004, No. 1.377.747, etc., U.S. Patent No. 4.07
2.528, 4,072.527, and the like.
なお支持体上に形成される感光層の量は、約０．１〜約
７８／ｌｒｒ、好ましくは０．５〜４ｇ／耐の範囲であ
る。The amount of the photosensitive layer formed on the support is in the range of about 0.1 to about 78 g/lrr, preferably 0.5 to 4 g/lrr.
１８版は画像露光されたのち、常法により現像を含む処
理によって樹脂画像が形成される。例えばジアゾ樹脂と
バインダーとからなる前記感光層（１）を有する１８版
の場合は画像露光後、未露光部分の感光層が現像により
除去されて平版印刷版が得られる。また前記感光層Ｑ）
を有する１８版の場合には現像露光後、アルカリ水溶液
で現像することにより未露光部分が除去されて平版印刷
版が得られる。After imagewise exposure of the 18th plate, a resin image is formed by processing including development using conventional methods. For example, in the case of the 18th plate having the photosensitive layer (1) consisting of a diazo resin and a binder, after image exposure, the photosensitive layer in the unexposed portions is removed by development to obtain a lithographic printing plate. Also, the photosensitive layer Q)
In the case of the 18th plate having the following, after development and exposure, the unexposed portions are removed by developing with an alkaline aqueous solution to obtain a lithographic printing plate.
実 施 例
第工表の合金符号Ａ−Ｈに示す成分組成のアルミニウム
合金を溶製し、半連続鋳造法によって４５０關Ｘ １２
００ｎｒｍ Ｘ ３５（１ＧＩＩ１ｍ （７）鋳塊を製
造シタ。ソノ鋳塊に対し片面７則ずつ面削を行なった後
、５５０℃×ａ時間の均質化処理を施し、次いで５００
℃で熱間圧延を開始し、板厚５關の熱延板に仕上げた。Example An aluminum alloy having the composition shown in the alloy codes A-H in the construction table was melted and cast into 450mm x 12mm by semi-continuous casting method.
00nrm
Hot rolling was started at ℃ and finished into a hot rolled plate with a thickness of 5 mm.
その後、１次冷間圧延を施して板厚１．５ｍとじた後、
第２表の条件符号Ｘ−Ｚに示す条件で中間焼鈍を行ない
、さらに最終冷間圧延を施して板厚０．３園の印刷版支
持体用素板に仕上げた。After that, after performing the first cold rolling and finishing the plate with a thickness of 1.5 m,
Intermediate annealing was performed under the conditions indicated by condition codes X-Z in Table 2, and final cold rolling was performed to produce a blank plate for printing plate support having a thickness of 0.3 mm.
さらに、以上のようにして得られた各素板をブラッシン
グにより機械的に粗面化した後、１０％ＮａＯＨ水溶液
中で５０℃× １分間予備エツチングを施し、続いて３
％硝酸水溶液中で９０Ａ／ｄｒｌで電気化学的なエツチ
ング（粗面化処理）を施した。引き続いて３０％硫酸水
溶液中で５５℃、１分間のデスマット処理を施した後、
２０％硫酸水溶液を主成分とする電解液中で陽極酸化処
理により １μｍの陽極酸化皮膜を形成し、続いて感光
剤を塗布して平版印刷版用ＰＳ板を製造した。これに所
定の感光処理および現像処理を施した。このようにして
得られた印刷原版を用いて、湿し水の存在の下にｌＯ万
部の印刷を行なった。Furthermore, after mechanically roughening each blank plate obtained in the above manner by brushing, preliminary etching was performed for 1 minute at 50°C in a 10% NaOH aqueous solution, and then etching was performed for 3 minutes.
% nitric acid aqueous solution at 90 A/drl. Subsequently, after desmutting in a 30% sulfuric acid aqueous solution at 55°C for 1 minute,
A 1 μm thick anodic oxide film was formed by anodizing in an electrolytic solution containing a 20% aqueous sulfuric acid solution as a main component, and then a photosensitizer was applied to produce a PS plate for a lithographic printing plate. This was subjected to predetermined photosensitive treatment and development treatment. Using the printing original plate thus obtained, 10,000 copies were printed in the presence of dampening water.
本発明実施例の各素板（Ｎα１〜３．５）および比較例
の各素板（Ｎα４，６〜１５）について、機械的性質と
、前述のように機械的粗面化−予備エッチングー電気化
学的粗面化処理を行なった後の表面処理性と、バーニン
グ処理に相当する ２７０℃× ７分熱処理に対する耐
熱軟化性と、前述の工程により最終的に得られた印刷原
版についての１０万部印刷テスト後の非画像部の耐イン
ク汚れ性について調査した結果を第３表に示す。Mechanical properties and mechanical roughening-preliminary etching-electrochemical treatment were performed as described above for each blank plate (Nα1 to 3.5) of the present invention example and each blank plate (Nα4,6 to 15) of the comparative example. Surface treatment properties after surface roughening treatment, heat softening resistance against heat treatment at 270°C for 7 minutes, which corresponds to burning treatment, and printing of 100,000 copies of the printing original plate finally obtained by the above-mentioned process. Table 3 shows the results of investigating the ink stain resistance of the non-image area after the test.
なお第３表において表面処理性のうち画質ムラについて
は、
Ｏ・・・良 △・・・中間 ×・・・不良で評
価し、またストリークスについては、○・・・筋なく良
好 ×・・・筋っぽく不良で評価し、さらに色調に
ついては、
○・・・良 ×・・・黒っぽ過ぎて不良で評価した
。さらに、耐インク汚れ性に関しては、非画像部のイン
ク汚れを目視で観察した。In Table 3, image quality unevenness among surface treatment properties is evaluated as O...Good, △...Intermediate ×...Poor, and streaks are evaluated as ○...Good without streaks. - It was evaluated as streaky and poor, and the color tone was evaluated as ○...Good ×...too dark and poor. Furthermore, regarding ink stain resistance, ink stains in non-image areas were visually observed.
第３表から明らかなように、この発明の実施例の印刷版
支持体用アルミニウム合金素板（徹１〜３．５）は、い
ずれも表面処理性が優れていて、面質ムラやストリーク
スの発生もなくかつ色調も適当であり、しかも印刷版と
して用いた場合の耐インク汚れ性も優れていて、印刷時
における非画像部へのインクの付着による印刷の汚れの
発生を有効に防止できることが判明した。また中間焼鈍
として連続焼鈍もしくは４００℃以上の高温でのバッチ
焼鈍を行なうことによって、良好な耐熱軟化性を示し得
ることも明らかとなった。As is clear from Table 3, the aluminum alloy base plates for printing plate supports of Examples of the present invention (Toru 1 to 3.5) all have excellent surface treatment properties, and are free from uneven surface quality and streaks. It has no occurrence of blemishes and has a suitable color tone, and also has excellent ink stain resistance when used as a printing plate, and can effectively prevent the occurrence of print stains due to ink adhering to non-image areas during printing. There was found. It has also been revealed that good heat softening resistance can be exhibited by performing continuous annealing or batch annealing at a high temperature of 400° C. or higher as intermediate annealing.
これに対し成分組成がこの発明の範囲から外れている比
較例（ＮＣＬ４．６〜１５）の場合には、表面処理性と
耐インク汚れ性の両者を同時に満足させることは困難で
あることが判明した。On the other hand, in the case of comparative examples (NCL4.6 to 15) whose component compositions were outside the scope of the present invention, it was found that it was difficult to simultaneously satisfy both surface treatment properties and ink stain resistance. did.
発明の効果
以上の実施例からも明らかなように、この発明の印刷版
支持体用アルミニウム合金素板は、微量添加元素を適切
に調整することによって、優れた表面処理性、特に優れ
た電気化学的粗面化処理性が得られると同時に、印刷版
として使用した際における優れた耐インク汚れ性が得ら
れたものである。したがってこの発明の印刷版支持体用
アルミニウム合金素板を用いれば、粗面化処理、特に電
気化学的粗面化処理によって均一でしかもストリークス
の発生がなくかつ色調も適当な粗面を得ることができる
とともに、印刷中に非画像部へのインクの付着による印
刷の汚れの発生を有効に防止でき、オフセット印刷もし
くは平版印刷用の支持体として極めて優れている。Effects of the Invention As is clear from the above examples, the aluminum alloy base plate for printing plate supports of the present invention has excellent surface treatment properties and particularly excellent electrochemical properties by appropriately adjusting trace additive elements. It not only provides surface roughening properties but also provides excellent ink stain resistance when used as a printing plate. Therefore, by using the aluminum alloy base plate for printing plate supports of the present invention, it is possible to obtain a roughened surface that is uniform, free of streaks, and has an appropriate color tone by roughening treatment, especially electrochemical roughening treatment. In addition, it is possible to effectively prevent the occurrence of printing stains due to ink adhesion to non-image areas during printing, making it extremely excellent as a support for offset printing or planographic printing.
Claims (1)
０．１〜０．５％、Ｃｕ０．００１〜０．０３％、Ｇａ
０．００５〜０．０２０％、Ｎｉ０．００１〜０．０３
％、Ｔｉ０．００２〜０．０５％を含有し、かつＧａと
Ｔｉの合計含有量が０．０１０〜０．０５０％の範囲内
にあり、残部がＡｌおよび不可避的不純物よりなること
を特徴とする印刷版支持体用アルミニウム合金素板。Si0.03-0.30% (weight%, same below), Fe
0.1-0.5%, Cu0.001-0.03%, Ga
0.005-0.020%, Ni0.001-0.03
%, Ti 0.002 to 0.05%, and the total content of Ga and Ti is within the range of 0.010 to 0.050%, with the remainder consisting of Al and inevitable impurities. Aluminum alloy base plate for printing plate support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31680989A JPH03177528A (en) | 1989-12-06 | 1989-12-06 | Aluminum alloy sheet stock for supporting body of printing form plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31680989A JPH03177528A (en) | 1989-12-06 | 1989-12-06 | Aluminum alloy sheet stock for supporting body of printing form plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03177528A true JPH03177528A (en) | 1991-08-01 |
Family
ID=18081165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31680989A Pending JPH03177528A (en) | 1989-12-06 | 1989-12-06 | Aluminum alloy sheet stock for supporting body of printing form plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03177528A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05309964A (en) * | 1992-05-01 | 1993-11-22 | Sumitomo Light Metal Ind Ltd | Aluminum alloy for lithography printing plate and preparation thereof |
| JPH09143603A (en) * | 1995-09-20 | 1997-06-03 | Kobe Steel Ltd | Aluminum alloy plate for printing plate and its production |
| JPH09184039A (en) * | 1996-01-05 | 1997-07-15 | Kobe Steel Ltd | Aluminum alloy material for printing plate and its production |
| JPH09272937A (en) * | 1996-04-08 | 1997-10-21 | Kobe Steel Ltd | Aluminum alloy plate for printing plate and its production |
| JPH09272936A (en) * | 1996-04-08 | 1997-10-21 | Kobe Steel Ltd | Aluminum alloy plate for printing plate and its production |
| JPH09272935A (en) * | 1996-04-05 | 1997-10-21 | Kobe Steel Ltd | Aluminum alloy plate for printing plate and its production |
| JPH09279272A (en) * | 1996-04-11 | 1997-10-28 | Kobe Steel Ltd | Aluminum alloy plate for printing plate and its production |
| JPH09279278A (en) * | 1996-04-17 | 1997-10-28 | Kobe Steel Ltd | Aluminum alloy plate for printing plate and its production |
| JPH09279275A (en) * | 1996-04-16 | 1997-10-28 | Kobe Steel Ltd | Aluminum alloy plate for printing plate and its production |
| JPH09279276A (en) * | 1996-04-17 | 1997-10-28 | Kobe Steel Ltd | Aluminum alloy plate for printing plate and its production |
| JPH09279274A (en) * | 1996-04-16 | 1997-10-28 | Kobe Steel Ltd | Aluminum alloy plate for printing plate and its production |
| EP0853132A1 (en) * | 1997-01-10 | 1998-07-15 | Konica Corporation | Aluminium alloy support for planographic printing plate |
| US5795541A (en) * | 1996-01-05 | 1998-08-18 | Kabushiki Kaisha Kobe Seiko Sho | Aluminum alloy sheet for lithographic printing plates and method for manufacturing the same |
| US8118951B2 (en) * | 2009-10-30 | 2012-02-21 | Fujifilm Corporation | Aluminum alloy sheet for lithographic printing plate |
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| JPS58130242A (en) * | 1982-01-28 | 1983-08-03 | Sumitomo Light Metal Ind Ltd | Aluminum or aluminum alloy with superior etchability |
| JPS6330294A (en) * | 1986-07-24 | 1988-02-08 | Fuji Photo Film Co Ltd | Aluminum alloy support for planographic printing plate and its preparation |
| JPH03122241A (en) * | 1989-10-06 | 1991-05-24 | Fuji Photo Film Co Ltd | Aluminum alloy material for lithographic printing plate and its manufacture |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58130242A (en) * | 1982-01-28 | 1983-08-03 | Sumitomo Light Metal Ind Ltd | Aluminum or aluminum alloy with superior etchability |
| JPS6330294A (en) * | 1986-07-24 | 1988-02-08 | Fuji Photo Film Co Ltd | Aluminum alloy support for planographic printing plate and its preparation |
| JPH03122241A (en) * | 1989-10-06 | 1991-05-24 | Fuji Photo Film Co Ltd | Aluminum alloy material for lithographic printing plate and its manufacture |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05309964A (en) * | 1992-05-01 | 1993-11-22 | Sumitomo Light Metal Ind Ltd | Aluminum alloy for lithography printing plate and preparation thereof |
| JPH09143603A (en) * | 1995-09-20 | 1997-06-03 | Kobe Steel Ltd | Aluminum alloy plate for printing plate and its production |
| US5795541A (en) * | 1996-01-05 | 1998-08-18 | Kabushiki Kaisha Kobe Seiko Sho | Aluminum alloy sheet for lithographic printing plates and method for manufacturing the same |
| JPH09184039A (en) * | 1996-01-05 | 1997-07-15 | Kobe Steel Ltd | Aluminum alloy material for printing plate and its production |
| JPH09272935A (en) * | 1996-04-05 | 1997-10-21 | Kobe Steel Ltd | Aluminum alloy plate for printing plate and its production |
| JPH09272937A (en) * | 1996-04-08 | 1997-10-21 | Kobe Steel Ltd | Aluminum alloy plate for printing plate and its production |
| JPH09272936A (en) * | 1996-04-08 | 1997-10-21 | Kobe Steel Ltd | Aluminum alloy plate for printing plate and its production |
| JPH09279272A (en) * | 1996-04-11 | 1997-10-28 | Kobe Steel Ltd | Aluminum alloy plate for printing plate and its production |
| JPH09279275A (en) * | 1996-04-16 | 1997-10-28 | Kobe Steel Ltd | Aluminum alloy plate for printing plate and its production |
| JPH09279274A (en) * | 1996-04-16 | 1997-10-28 | Kobe Steel Ltd | Aluminum alloy plate for printing plate and its production |
| JPH09279276A (en) * | 1996-04-17 | 1997-10-28 | Kobe Steel Ltd | Aluminum alloy plate for printing plate and its production |
| JPH09279278A (en) * | 1996-04-17 | 1997-10-28 | Kobe Steel Ltd | Aluminum alloy plate for printing plate and its production |
| EP0853132A1 (en) * | 1997-01-10 | 1998-07-15 | Konica Corporation | Aluminium alloy support for planographic printing plate |
| US8118951B2 (en) * | 2009-10-30 | 2012-02-21 | Fujifilm Corporation | Aluminum alloy sheet for lithographic printing plate |
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