JPH0199063A - Master plate for planographic printing - Google Patents
Master plate for planographic printingInfo
- Publication number
- JPH0199063A JPH0199063A JP25636187A JP25636187A JPH0199063A JP H0199063 A JPH0199063 A JP H0199063A JP 25636187 A JP25636187 A JP 25636187A JP 25636187 A JP25636187 A JP 25636187A JP H0199063 A JPH0199063 A JP H0199063A
- Authority
- JP
- Japan
- Prior art keywords
- formulas
- tables
- zinc oxide
- binder
- lithographic printing
- 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
Links
- 238000007639 printing Methods 0.000 title claims abstract description 36
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000011230 binding agent Substances 0.000 claims abstract description 18
- 239000011787 zinc oxide Substances 0.000 claims abstract description 16
- 230000001235 sensitizing effect Effects 0.000 claims abstract description 13
- 229920001577 copolymer Polymers 0.000 claims abstract description 8
- 229920001519 homopolymer Polymers 0.000 claims abstract description 7
- 239000000178 monomer Substances 0.000 claims abstract description 7
- 230000000379 polymerizing effect Effects 0.000 claims abstract description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 4
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 4
- 229910052801 chlorine Inorganic materials 0.000 claims description 4
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 4
- 230000009477 glass transition Effects 0.000 claims description 3
- 150000001450 anions Chemical group 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 5
- 125000000217 alkyl group Chemical group 0.000 claims 1
- 125000004432 carbon atom Chemical group C* 0.000 claims 1
- 206010034972 Photosensitivity reaction Diseases 0.000 abstract description 2
- 230000036211 photosensitivity Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- 239000000975 dye Substances 0.000 description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 239000004065 semiconductor Substances 0.000 description 9
- 230000035945 sensitivity Effects 0.000 description 6
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- GMSCBRSQMRDRCD-UHFFFAOYSA-N dodecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCOC(=O)C(C)=C GMSCBRSQMRDRCD-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- PBOSTUDLECTMNL-UHFFFAOYSA-N lauryl acrylate Chemical compound CCCCCCCCCCCCOC(=O)C=C PBOSTUDLECTMNL-UHFFFAOYSA-N 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- JHPBZFOKBAGZBL-UHFFFAOYSA-N (3-hydroxy-2,2,4-trimethylpentyl) 2-methylprop-2-enoate Chemical compound CC(C)C(O)C(C)(C)COC(=O)C(C)=C JHPBZFOKBAGZBL-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- SJIXRGNQPBQWMK-UHFFFAOYSA-N 2-(diethylamino)ethyl 2-methylprop-2-enoate Chemical compound CCN(CC)CCOC(=O)C(C)=C SJIXRGNQPBQWMK-UHFFFAOYSA-N 0.000 description 1
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 description 1
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 1
- WHBAYNMEIXUTJV-UHFFFAOYSA-N 2-chloroethyl prop-2-enoate Chemical compound ClCCOC(=O)C=C WHBAYNMEIXUTJV-UHFFFAOYSA-N 0.000 description 1
- WDQMWEYDKDCEHT-UHFFFAOYSA-N 2-ethylhexyl 2-methylprop-2-enoate Chemical compound CCCCC(CC)COC(=O)C(C)=C WDQMWEYDKDCEHT-UHFFFAOYSA-N 0.000 description 1
- RUMACXVDVNRZJZ-UHFFFAOYSA-N 2-methylpropyl 2-methylprop-2-enoate Chemical compound CC(C)COC(=O)C(C)=C RUMACXVDVNRZJZ-UHFFFAOYSA-N 0.000 description 1
- CFVWNXQPGQOHRJ-UHFFFAOYSA-N 2-methylpropyl prop-2-enoate Chemical compound CC(C)COC(=O)C=C CFVWNXQPGQOHRJ-UHFFFAOYSA-N 0.000 description 1
- IICCLYANAQEHCI-UHFFFAOYSA-N 4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodospiro[2-benzofuran-3,9'-xanthene]-1-one Chemical compound O1C(=O)C(C(=C(Cl)C(Cl)=C2Cl)Cl)=C2C21C1=CC(I)=C(O)C(I)=C1OC1=C(I)C(O)=C(I)C=C21 IICCLYANAQEHCI-UHFFFAOYSA-N 0.000 description 1
- FEIQOMCWGDNMHM-UHFFFAOYSA-N 5-phenylpenta-2,4-dienoic acid Chemical compound OC(=O)C=CC=CC1=CC=CC=C1 FEIQOMCWGDNMHM-UHFFFAOYSA-N 0.000 description 1
- JTHZUSWLNCPZLX-UHFFFAOYSA-N 6-fluoro-3-methyl-2h-indazole Chemical compound FC1=CC=C2C(C)=NNC2=C1 JTHZUSWLNCPZLX-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- -1 acrylic ester Chemical class 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920003146 methacrylic ester copolymer Polymers 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- HMZGPNHSPWNGEP-UHFFFAOYSA-N octadecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C(C)=C HMZGPNHSPWNGEP-UHFFFAOYSA-N 0.000 description 1
- ANISOHQJBAQUQP-UHFFFAOYSA-N octyl prop-2-enoate Chemical compound CCCCCCCCOC(=O)C=C ANISOHQJBAQUQP-UHFFFAOYSA-N 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- QIWKUEJZZCOPFV-UHFFFAOYSA-N phenyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1=CC=CC=C1 QIWKUEJZZCOPFV-UHFFFAOYSA-N 0.000 description 1
- WRAQQYDMVSCOTE-UHFFFAOYSA-N phenyl prop-2-enoate Chemical compound C=CC(=O)OC1=CC=CC=C1 WRAQQYDMVSCOTE-UHFFFAOYSA-N 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- NHARPDSAXCBDDR-UHFFFAOYSA-N propyl 2-methylprop-2-enoate Chemical compound CCCOC(=O)C(C)=C NHARPDSAXCBDDR-UHFFFAOYSA-N 0.000 description 1
- PNXMTCDJUBJHQJ-UHFFFAOYSA-N propyl prop-2-enoate Chemical compound CCCOC(=O)C=C PNXMTCDJUBJHQJ-UHFFFAOYSA-N 0.000 description 1
- 229930187593 rose bengal Natural products 0.000 description 1
- 229940081623 rose bengal Drugs 0.000 description 1
- STRXNPAVPKGJQR-UHFFFAOYSA-N rose bengal A Natural products O1C(=O)C(C(=CC=C2Cl)Cl)=C2C21C1=CC(I)=C(O)C(I)=C1OC1=C(I)C(O)=C(I)C=C21 STRXNPAVPKGJQR-UHFFFAOYSA-N 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
- G03G5/0664—Dyes
- G03G5/0666—Dyes containing a methine or polymethine group
- G03G5/0668—Dyes containing a methine or polymethine group containing only one methine or polymethine group
- G03G5/067—Dyes containing a methine or polymethine group containing only one methine or polymethine group containing hetero rings
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/09—Sensitisors or activators, e.g. dyestuffs
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Printing Plates And Materials Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は平版印刷用原版に関し、更に詳しくは半導体レ
ーザーに適合する酸化亜鉛系電子写真平版印刷用原版に
関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a lithographic printing original plate, and more particularly to a zinc oxide-based electrophotographic lithographic printing original plate compatible with semiconductor lasers.
〈従来の技術〉
一般に電子写真方式による酸化亜鉛系の平版印刷用原版
は、導電性支持体上に光導電性酸化亜鉛、増感色素、結
着剤を主成分とする感光層を設けたものである。この場
合使用される従来の増感色素としては、例えばローズベ
ンカル、プロムフエノ−ルブルー、ウラニンなどが挙げ
られる。このような増感色素を用いた従来の酸化亜鉛系
平版印刷原版における製版方式は、電子写真方式のハロ
ゲンランプなどの光源によるカメラ型ダイレクト製版方
式であった。<Prior art> Generally, electrophotographic zinc oxide-based lithographic printing original plates are those in which a photosensitive layer containing photoconductive zinc oxide, a sensitizing dye, and a binder as main components is provided on a conductive support. It is. Examples of conventional sensitizing dyes used in this case include rosebencal, promphenol blue, and uranine. The plate-making method for conventional zinc oxide-based lithographic printing original plates using such sensitizing dyes has been a camera-type direct plate-making method using a light source such as an electrophotographic halogen lamp.
これに対して最近ではレーザーを用いた走査型露光方式
による製版方式が考えられている。この理由としては、
例えば、パーソナルコンピューターによって編集された
情報から刷版を作製する場合、従来の方式では版下を作
製するためにプリンターからハードコピーとして出力す
る必要があるのに対して、レーザー光を用いた走査型露
光方式ではコンビタユーターから電気信号によって直接
オフセットマスターに書き込むことができるという利点
をもっためである。ここでレーザー光としては、安価、
小型、直接変調可能という長所をもつ半導体レーザー（
波長７００〜９００ｎｍ）が最近では用いられてきてい
る。しかし、従来の酸化亜鉛系平版印刷用原版において
は増感色素による制約があり、７００〜９００ｎｍの波
長域には感度−３＝
を持たず、即ち半導体レーザーには適合できないもので
あった。In contrast, a plate making method using a scanning exposure method using a laser has recently been considered. The reason for this is
For example, when creating a printing plate from information edited by a personal computer, the conventional method requires outputting a hard copy from a printer in order to create the original, whereas the scanning method using laser light This is because the exposure method has the advantage that it is possible to write directly to the offset master using an electrical signal from a combi-uter. Here, the laser light is cheap,
Semiconductor lasers (
Recently, wavelengths of 700 to 900 nm) have been used. However, the conventional zinc oxide based lithographic printing original plate is limited by the sensitizing dye and does not have a sensitivity of -3= in the wavelength range of 700 to 900 nm, that is, it is not suitable for semiconductor lasers.
〈発明が解決しようとする問題点〉
本発明の目的は半導体レーザーの波長域において高感度
な感光層を有し、半導体レーザーを光源とする走査型露
光方式による製版が可能な電子写真方式による酸化亜鉛
系の平版印刷用原版を提供することにある。<Problems to be Solved by the Invention> The purpose of the present invention is to provide an oxidation method using an electrophotographic method, which has a photosensitive layer that is highly sensitive in the wavelength range of a semiconductor laser, and which enables plate making by a scanning exposure method using a semiconductor laser as a light source. An object of the present invention is to provide a zinc-based lithographic printing original plate.
く問題点を解決するための手段〉
本発明は下記に示すように光導電性酸化亜鉛に対し特定
の増感色素と結着剤を組み合わせることによって達成す
ることができた。Means for Solving the Problems The present invention was achieved by combining a specific sensitizing dye and a binder with photoconductive zinc oxide as shown below.
即ち、本発明は、導電性支持体上に
（ａ）光導電性酸化亜鉛
（ｂ）下記式（１）て示される増感色素〔式中Ｘは陰イ
オンを、Ｙは水素原子又は塩素原子を、Ｒは←（ＣＨ）
Ｏ→Ｑ（ＣＨ２）。ＯＲ’ ｍ
（ｅは０又は１を、ｍ及びｎはそれぞれ独立に１又は２
を、Ｒ１は炭素数４以下のアルキル基を各式中Ｂは水素
原子、塩素原子又は−Ｎ←−＠）、。That is, the present invention provides a sensitizing dye represented by the following formula (1) on a conductive support (a) photoconductive zinc oxide (b) where X is an anion and Y is a hydrogen atom or a chlorine atom. , R is ←(CH)
O → Q (CH2). OR' m (e is 0 or 1, m and n are each independently 1 or 2
In each formula, B is a hydrogen atom, a chlorine atom, or -N←-@).
を表す）をそれぞれ表す。〕
（Ｃ）ビニル系単量体を少なくとも含有する系を重合し
て得られる単独重合体もしくは共重合体からなる結着剤
を含有する感光層を設けたことを特徴とする平版印刷用
原版を提供するものである。) respectively. (C) A lithographic printing original plate comprising a photosensitive layer containing a binder made of a homopolymer or copolymer obtained by polymerizing a system containing at least a vinyl monomer. This is what we provide.
本発明を構成する導電性支持体としては、アルミニウム
などの金属シートあるいは紙、プラスチックシートに導
電性処理を施したものなどが適用できる。As the conductive support constituting the present invention, a metal sheet such as aluminum, paper, or a plastic sheet subjected to conductive treatment can be used.
光導電性酸化亜鉛としては、平均粒径０．２〜０．５ν
ｍ程度の電子写真用として一般に使用されている粉末状
のものが適用できる。The photoconductive zinc oxide has an average particle size of 0.2 to 0.5ν.
Powdered materials that are generally used for electrophotography of about 200 yen can be used.
増感色素は、前記−形式で示される構造を有するもので
あり、スペクトル増感用として用いられる。該増感色素
の含有量は酸化亜鉛に対して０．０１〜０．５重量％の
範囲内にあるのが好ましい。この範囲をはずれると感光
層の電位特性を低下させるので好ましくない。The sensitizing dye has the structure shown in the above-mentioned format and is used for spectral sensitization. The content of the sensitizing dye is preferably in the range of 0.01 to 0.5% by weight based on zinc oxide. If it is outside this range, the potential characteristics of the photosensitive layer will deteriorate, which is not preferable.
次に本発明でいう結着剤、即ちビニル系単量体を少なく
とも含有する系を重合して得られる単独重合体もしくは
共重合体としては、例えば、スチレン−アクリル酸エス
テル共重合体、スチレン−メタクリル酸エステル共重合
体、アクリル酸エステルの単独重合体もしくは共重合体
、メタアクリル酸エステルの単独重合体もしくは共重合
体等が挙げられ、これらの中から１種もしくは２種以上
を適宜選択して用いることができる。Next, examples of the binder in the present invention, that is, a homopolymer or copolymer obtained by polymerizing a system containing at least a vinyl monomer, include styrene-acrylic acid ester copolymer, styrene- Examples include methacrylic ester copolymers, acrylic ester homopolymers or copolymers, methacrylic ester homopolymers or copolymers, and one or more of these can be selected as appropriate. It can be used as
本発明の結着剤の主たる構成成分として用いられるアク
リル酸エステルの単量体としては、アクリル酸メチル、
アクリル酸ｎ−ブチル、アクリル酸イソブチル、アクリ
ル酸プロピル、アクリル酸ｎ−オクチル、アクリル酸ド
デシル、アクリル酸ラウリル、アクリル酸２−エチルヘ
キシル、アクリル酸ステアリル、アクリル酸２−クロル
エチル、アクリル酸フェニル、α−クロルアクリル酸メ
チル等が挙げられ、又、メタアクリル酸エステルの単量
体としては、メタアクリル酸メチル、メタアクリル酸エ
チル、メタアクリル酸プロピル、メタアクリル酸ｎ−ブ
チル、メタアクリル酸イソブチル、メタアクリル酸ｎ−
オクチル、メタアクリル酸ドデシル、メタアクリル酸ラ
ウリル、メタアクリル酸２−エチルヘキシル、メタアク
リル酸ステアリル、メタアクリル酸フェニル、メタアク
リル酸ジメチルアミノエチル、メタアクリル酸ジエチル
アミノエチル等が挙げられる。Examples of the acrylic acid ester monomer used as the main component of the binder of the present invention include methyl acrylate,
n-butyl acrylate, isobutyl acrylate, propyl acrylate, n-octyl acrylate, dodecyl acrylate, lauryl acrylate, 2-ethylhexyl acrylate, stearyl acrylate, 2-chloroethyl acrylate, phenyl acrylate, α- Examples of methacrylate monomers include methyl methacrylate, ethyl methacrylate, propyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, and methacrylate. Acrylic acid n-
Octyl, dodecyl methacrylate, lauryl methacrylate, 2-ethylhexyl methacrylate, stearyl methacrylate, phenyl methacrylate, dimethylaminoethyl methacrylate, diethylaminoethyl methacrylate, and the like.
なお、この場合の重合の系には上記の如き主たる単量体
以外に例えばアクリル酸、イタコン酸、フマル酸、マレ
イン酸、安息香酸等の酸成分を配合してもよい。In this case, the polymerization system may contain an acid component such as acrylic acid, itaconic acid, fumaric acid, maleic acid, benzoic acid, etc. in addition to the above-mentioned main monomers.
本発明の結着剤に適用する重合体のガラス転移温度は２
０℃〜８０℃の範囲にあるのが好ましい。カラス転移温
度が２０℃より低いと感光層の帯電特性あるいは感度特
性が低下する傾向にあり、８０℃より高いと平版印刷に
おける保水性が悪（なる傾向にあるので好ましくない。The glass transition temperature of the polymer applied to the binder of the present invention is 2
Preferably, the temperature is in the range of 0°C to 80°C. If the glass transition temperature is lower than 20° C., the charging characteristics or sensitivity characteristics of the photosensitive layer tend to deteriorate, and if it is higher than 80° C., water retention during lithographic printing tends to be poor, which is not preferable.
結着剤の含有量としては、酸化亜鉛に対して１０重量％
から３０重量％の範囲にあるのが好ましい。この範囲を
はずれると感光層の電位特性を低下させたり、平版印刷
時の印刷適性を悪化させたりするので好ましくない。又
、本発明でいう感光層には上記の結着剤以外の結着剤を
適宜ブレンドしてもよい。但し、電子写真の感光層に適
用される結着剤として知られているシリコーン樹脂、ア
ルキッド樹脂、ポリウレタン樹脂などは感光層の電位特
性あるいは印刷適性を低下させるので好ましくない。The binder content is 10% by weight based on zinc oxide.
It is preferably in the range of 30% by weight. If it is out of this range, it is not preferable because it lowers the potential characteristics of the photosensitive layer and deteriorates the printability during lithographic printing. Further, binders other than the above-mentioned binders may be appropriately blended into the photosensitive layer in the present invention. However, silicone resins, alkyd resins, polyurethane resins, and the like, which are known as binders used in electrophotographic photosensitive layers, are not preferred because they degrade the potential characteristics or printing suitability of the photosensitive layer.
本発明でいう感光層には上記組成物の他に既知の添加剤
、例えば無水フタル酸、無水マレイン酸などの電子親和
性化合物を、酸化亜鉛に対して０．０１〜１．０％の範
囲で添加してもよい。In addition to the above-mentioned composition, the photosensitive layer according to the present invention contains known additives such as phthalic anhydride, maleic anhydride, and other electron-affinity compounds in a range of 0.01 to 1.0% based on zinc oxide. It may be added with
本発明の平版印刷用原版を作製する方法としては、上記
の光導電性酸化亜鉛、増感色素、結着剤および添加剤を
トルエン、酢酸エチル、メチルエチルケトンなどの有機
溶剤中に混合し、ボールミル、ペイントシェカー、ホモ
ジナイザー、ケディミルなどで分散する。得られた塗料
をワイヤーバー、リバースロールなどの塗工方式によっ
て前記支持体上に塗布し、熱風乾燥させることにより本
発明の平版印刷用原版を得ることができる。The method for preparing the lithographic printing original plate of the present invention includes mixing the photoconductive zinc oxide, sensitizing dye, binder, and additives in an organic solvent such as toluene, ethyl acetate, or methyl ethyl ketone, and then using a ball mill. Disperse using a paint shaker, homogenizer, kedimir, etc. The lithographic printing original plate of the present invention can be obtained by applying the obtained paint onto the support using a coating method such as a wire bar or reverse roll and drying with hot air.
〈実施例〉
以下に本発明を実施例にて詳しく説明する。なお、配合
部数は全て重量部を示すものとする。<Examples> The present invention will be explained in detail below using Examples. In addition, all blended parts shall indicate parts by weight.
実施例１ 下記処方にて感光層用塗料を作製した。Example 1 A coating material for the photosensitive layer was prepared according to the following formulation.
この組成物をホモジナイザー（１５，０００ｒｐｍ）に
て２０分間分散した後、導電性処理を施した紙にワイヤ
ーバーにて塗布し１１０℃で乾燥することにより本発明
の平版印刷用原版を作製した。この際の乾燥後の固型塗
布量は３０ｇ／ｎ？であった。This composition was dispersed for 20 minutes using a homogenizer (15,000 rpm), and then applied to conductively treated paper using a wire bar and dried at 110° C. to prepare a lithographic printing original plate of the present invention. In this case, the amount of solid coating after drying is 30g/n? Met.
この酸化亜鉛系平版印刷用原版を２０’Ｃ１６５％ＲＨ
の条件下で２４時間調整した後、川口電機社製のペーパ
ーアナライザー８１００を用いて感光層の電位測定を行
った。測定条件は−５，５ＫＶのコロナ帯電直後の電位
を初期電位（Ｖｏ）とし、１秒後に７８０ｎｍ、 ２＋
＋Ｗの光を照射させ表面電位の半減露光量をＥ！Ａとし
た。This zinc oxide based lithographic printing original plate was heated to 20'C165%RH.
After conditioning for 24 hours under these conditions, the potential of the photosensitive layer was measured using Paper Analyzer 8100 manufactured by Kawaguchi Electric Co., Ltd. The measurement conditions are -5.5KV corona charging potential immediately after initial potential (Vo), 1 second later, 780nm, 2+
+W light is irradiated and the exposure amount is E! to reduce the surface potential by half. I gave it an A.
その結果はＶ、＝ ５２０（Ｖ）、Ｅｙ２−３．５μ
Ｊ ／ ｃｎ？であった。The result is V, = 520 (V), Ey2-3.5μ
J/cn? Met.
次に本発明の平版印刷用原版を半導体レーザー製版機（
コロナ帯電： −５，８ＫＶ、半導体レーザー ： ７
８０ｎｍ、 ２．５ｍＷ）にかけ、正帯電性トナーを用
いて製版したところ良好な製版物が得られた。つづいて
不感脂化処理液にて親水化処理をした後、市販のオフセ
ット印刷機（リョービ社製２８００ＣＤ ’）にて上質
紙を用いて印刷試験をおこない印刷適性を評価したとこ
ろ、３，０００枚以上の印刷において地汚れの発生もな
く印字濃度も十分ですぐれた耐刷性が得られた。Next, the lithographic printing original plate of the present invention was applied to a semiconductor laser plate making machine (
Corona charging: -5,8KV, semiconductor laser: 7
80 nm, 2.5 mW), and a plate was made using a positively chargeable toner, and a good plate was obtained. Next, after hydrophilic treatment with a desensitizing treatment liquid, a printing test was conducted using high-quality paper using a commercially available offset printing machine (Ryobi 2800CD') to evaluate the printability of 3,000 sheets. In the above printing, there was no occurrence of background smearing, print density was sufficient, and excellent printing durability was obtained.
実施例２
実施例１の結着剤の代わりにスチレン−メタアクリル酸
メチル−メタアクリル酸ｎ−ブチル共重合体（Ｔｇニア
８°Ｃ４０％トルエン溶液）を用いた以外は実施例１と
同様にして本発明の平版印刷用原版を作製し、諸特性の
評価を行ったところ、半導体レーザーの赤外波長域に高
感度を有し、かつ印刷特性においても実用上すぐれた特
性を有することを確認した。Example 2 The same procedure as in Example 1 was carried out except that styrene-methyl methacrylate-n-butyl methacrylate copolymer (Tgnia 8°C, 40% toluene solution) was used instead of the binder in Example 1. When the lithographic printing original plate of the present invention was prepared and its various properties were evaluated, it was confirmed that it has high sensitivity in the infrared wavelength region of semiconductor lasers and has excellent printing properties for practical use. did.
実施例３
実施例１の結着剤の代わりにメタアクリル酸ｎ−ブチル
の単独重合体（Ｔｇ：２０℃、４０％トルエン溶液）を
用いた以外は実施例１と同様にして本発明の平版印刷用
原版を作製し、諸特性の評価を行ったところ、半導体レ
ーザーの赤外波長域に高感度を有し、かつ印刷特性にお
いても実用上すぐれた特性を有することを確認した。Example 3 A lithographic plate of the present invention was produced in the same manner as in Example 1, except that a homopolymer of n-butyl methacrylate (Tg: 20°C, 40% toluene solution) was used instead of the binder in Example 1. When a printing original plate was prepared and various properties were evaluated, it was confirmed that it has high sensitivity in the infrared wavelength region of semiconductor lasers and has excellent printing properties for practical use.
比較例１
実施例１の増感色素の代わりにローズベンガル（２％メ
タノール溶液）７．５ｇ用いた以外は実施例１と同様に
して比較用の平版印刷用原版を作製した。この感光層の
電位特性の測定結果は、Ｖ、 −−６５０（Ｖ）であっ
たが、７８０ｎｍに対する感度は全くなかった。Comparative Example 1 A comparative lithographic printing original plate was prepared in the same manner as in Example 1, except that 7.5 g of rose bengal (2% methanol solution) was used instead of the sensitizing dye of Example 1. The potential characteristics of this photosensitive layer were measured to be V, -650 (V), but there was no sensitivity to 780 nm.
比較例２
実施例１の結着剤の代わりにシリコーン樹脂を用いた以
外は実施例１と同様にして比較用の平版印刷用原版を作
製し特性を評価したところ、半導体レーザーの赤外波長
域には感度を有するものの、製版後の版面および印刷物
は、地汚れ、画像濃度不足がみられ実用上支障をきたす
ものであった。Comparative Example 2 A comparative lithographic printing original plate was prepared in the same manner as in Example 1 except that a silicone resin was used instead of the binder in Example 1, and its characteristics were evaluated. Although it has sensitivity, the plate surface and printed matter after plate making have background smudges and insufficient image density, which poses a practical problem.
〈発明の効果〉
本発明は上記の構成からなるので、近赤外光のの波長域
においてすぐれた感光特性を有することが出来、かつ平
滑印刷における親水性、着肉性および耐刷性等印刷特性
においても良好な平版印刷用原版を得ることができる。<Effects of the Invention> Since the present invention has the above structure, it can have excellent photosensitivity in the wavelength range of near-infrared light, and has excellent printing properties such as hydrophilicity, ink receptivity, and printing durability in smooth printing. A lithographic printing original plate having good properties can also be obtained.
Claims (1)
Ｒは▲数式、化学式、表等があります▼ （ｌは０又は１を、ｍ及びｎはそれぞれ独立に１又は２
を、Ｒ＾１は炭素数４以下のアルキル基を各々表す）を
、Ａは▲数式、化学式、表等があります▼又は▲数式、
化学式、表等があります▼（これらの式中Ｂは水素原子
、塩素原子又は▲数式、化学式、表等があります▼ を表す）をそれぞれ表す。〕 （ｃ）ビニル系単量体を少なくとも含有する系を重合し
て得られる単独重合体もしくは共重合体からなる結着剤
を含有する感光層を設けたことを特徴とする平版印刷用
原版。 ２）前記結着剤のガラス転移温度が２０℃〜８０℃の範
囲にあることを特徴とする特許請求の範囲第１項記載の
平版印刷用原版。[Claims] 1) On a conductive support: (a) Photoconductive zinc oxide (b) A sensitizing dye represented by the following formula (1) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (1) [In the formula, X is an anion, Y is a hydrogen atom or a chlorine atom,
R has ▲mathematical formulas, chemical formulas, tables, etc.▼ (l stands for 0 or 1, m and n each independently stand for 1 or 2.
, R^1 each represents an alkyl group with 4 or less carbon atoms), A is ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ or ▲ Numerical formulas,
There are chemical formulas, tables, etc.▼ (In these formulas, B represents a hydrogen atom, a chlorine atom, or ▲There are mathematical formulas, chemical formulas, tables, etc.▼). (c) A lithographic printing original plate comprising a photosensitive layer containing a binder made of a homopolymer or copolymer obtained by polymerizing a system containing at least a vinyl monomer. 2) The lithographic printing original plate according to claim 1, wherein the binder has a glass transition temperature in the range of 20°C to 80°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25636187A JPH0199063A (en) | 1987-10-13 | 1987-10-13 | Master plate for planographic printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25636187A JPH0199063A (en) | 1987-10-13 | 1987-10-13 | Master plate for planographic printing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0199063A true JPH0199063A (en) | 1989-04-17 |
| JPH055679B2 JPH055679B2 (en) | 1993-01-22 |
Family
ID=17291612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25636187A Granted JPH0199063A (en) | 1987-10-13 | 1987-10-13 | Master plate for planographic printing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0199063A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59216146A (en) * | 1983-05-24 | 1984-12-06 | Sony Corp | Electrophotographic sensitive material |
| JPS60191271A (en) * | 1984-02-08 | 1985-09-28 | ヘキスト・アクチエンゲゼルシヤフト | Xerographic recording material |
| JPS61110145A (en) * | 1984-11-05 | 1986-05-28 | Canon Inc | Electrophotographic sensitive body |
| JPS6250767A (en) * | 1985-08-29 | 1987-03-05 | Sony Corp | Electrophotographic sensitive body |
-
1987
- 1987-10-13 JP JP25636187A patent/JPH0199063A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59216146A (en) * | 1983-05-24 | 1984-12-06 | Sony Corp | Electrophotographic sensitive material |
| JPS60191271A (en) * | 1984-02-08 | 1985-09-28 | ヘキスト・アクチエンゲゼルシヤフト | Xerographic recording material |
| JPS61110145A (en) * | 1984-11-05 | 1986-05-28 | Canon Inc | Electrophotographic sensitive body |
| JPS6250767A (en) * | 1985-08-29 | 1987-03-05 | Sony Corp | Electrophotographic sensitive body |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH055679B2 (en) | 1993-01-22 |
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