CS241578B1 - Light-sensitive solution for offset printing plates' presensibilization - Google Patents
Light-sensitive solution for offset printing plates' presensibilization Download PDFInfo
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- CS241578B1 CS241578B1 CS842543A CS254384A CS241578B1 CS 241578 B1 CS241578 B1 CS 241578B1 CS 842543 A CS842543 A CS 842543A CS 254384 A CS254384 A CS 254384A CS 241578 B1 CS241578 B1 CS 241578B1
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- weight
- light
- aromatic
- azidobenzal
- bis
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- 238000007645 offset printing Methods 0.000 title claims abstract 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000243 solution Substances 0.000 claims abstract description 13
- 125000003118 aryl group Chemical group 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 8
- FHIVAFMUCKRCQO-UHFFFAOYSA-N diazinon Chemical compound CCOP(=S)(OCC)OC1=CC(C)=NC(C(C)C)=N1 FHIVAFMUCKRCQO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 239000000758 substrate Substances 0.000 claims abstract description 5
- MLIWQXBKMZNZNF-UHFFFAOYSA-N 2,6-bis[(4-azidophenyl)methylidene]-4-methylcyclohexan-1-one Chemical compound O=C1C(=CC=2C=CC(=CC=2)N=[N+]=[N-])CC(C)CC1=CC1=CC=C(N=[N+]=[N-])C=C1 MLIWQXBKMZNZNF-UHFFFAOYSA-N 0.000 claims abstract description 3
- UZNOMHUYXSAUPB-UHFFFAOYSA-N 2,6-bis[(4-azidophenyl)methylidene]cyclohexan-1-one Chemical compound C1=CC(N=[N+]=[N-])=CC=C1C=C(CCC1)C(=O)C1=CC1=CC=C(N=[N+]=[N-])C=C1 UZNOMHUYXSAUPB-UHFFFAOYSA-N 0.000 claims abstract description 3
- 206010070834 Sensitisation Diseases 0.000 claims abstract description 3
- 239000007864 aqueous solution Substances 0.000 claims abstract description 3
- 229920003086 cellulose ether Polymers 0.000 claims abstract description 3
- 229920000307 polymer substrate Polymers 0.000 claims abstract description 3
- 230000008313 sensitization Effects 0.000 claims abstract description 3
- RLSSMJSEOOYNOY-UHFFFAOYSA-N m-cresol Chemical compound CC1=CC=CC(O)=C1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 claims description 2
- 229940100630 metacresol Drugs 0.000 claims description 2
- 229920003169 water-soluble polymer Polymers 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 4
- 150000004820 halides Chemical class 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 238000001228 spectrum Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 abstract 2
- CWGBFIRHYJNILV-UHFFFAOYSA-N (1,4-diphenyl-1,2,4-triazol-4-ium-3-yl)-phenylazanide Chemical compound C=1C=CC=CC=1[N-]C1=NN(C=2C=CC=CC=2)C=[N+]1C1=CC=CC=C1 CWGBFIRHYJNILV-UHFFFAOYSA-N 0.000 abstract 1
- 125000000852 azido group Chemical group *N=[N+]=[N-] 0.000 abstract 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910001507 metal halide Inorganic materials 0.000 description 2
- 150000005309 metal halides Chemical class 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- UZNOMHUYXSAUPB-RFTYBOQRSA-N (2e,6z)-2,6-bis[(4-azidophenyl)methylidene]cyclohexan-1-one Chemical compound C1=CC(N=[N+]=[N-])=CC=C1\C=C(\CCC\1)C(=O)C/1=C/C1=CC=C(N=[N+]=[N-])C=C1 UZNOMHUYXSAUPB-RFTYBOQRSA-N 0.000 description 1
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- 206010034960 Photophobia Diseases 0.000 description 1
- 150000001540 azides Chemical class 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical class [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 150000008049 diazo compounds Chemical class 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 208000013469 light sensitivity Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- SQDFHQJTAWCFIB-UHFFFAOYSA-N n-methylidenehydroxylamine Chemical compound ON=C SQDFHQJTAWCFIB-UHFFFAOYSA-N 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 150000003378 silver Chemical class 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
Landscapes
- Photosensitive Polymer And Photoresist Processing (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
Abstract
Svetlocitlivý roztok na predsenzibilizáciu ofsetových tlačových platní vyznačujúci sa tým, že na hmotnost polymérneho substrátu obisahuje 0,5 až '50 % hmotnosti C-(4-azidofenyl)-N-fenylnitrónu a 0,5 až 50 °/o hmotnosti aromatického diazidu. Ako polymérny substrát sa používá metakrezolformaldehydová živica, alebo zmes metakrezolformaldehydovej živice s polymérmi rozpustnými vio >vode alebo v zásaditom vodnom roztoku, s výhodou s étermí celulózy. Ako- aromatický diazid sa používá 2,6-’bis(4‘-azidobenzal)-4-flnetylcyklohexanón alebo 2,6-bis- (4‘-azidobenzal)-cyklohexanón. Svetlocitlivý roztok sa nanesie v množstve cca 2 g/m2 na anodicky oxidiovamú hliníkovú platňu a exponuje sa halogenidovou výbojkou. Použitím aromatického nitrónu s azidoskupinou na aromatickom jadre ako svetlocitlivej látky isa dosiahne zvýšenie citlivosti v modrej oblasti spektra. Výhodou navrhovaného systému je aj to, že pri kopírovaní obrazu kopírovacej předlohy do tenkej svetlocitlivej vrstvy dochádza súčasne k vlzualizácii vzniknutého latentného obrazu.Light sensitive solution for pre-sensitization offset printing plates. \ t by the weight of the polymer substrate is 0.5 to 50% by weight of C- (4-azidophenyl) -N-phenylnitrone and 0.5 to 50 ° / by weight aromatic diazide. As polymer the substrate is used methacresol formaldehyde a resin, or a mixture of methacresol formaldehyde resins with polymers soluble vio> water or in basic aqueous solution, preferably cellulose ether. As- aromatic diazide is used 2,6-bis (4‘-azidobenzal) -4-methylcyclohexanone or 2,6-bis- (4'-azidobenzal) -cyclohexanone. The light-sensitive solution is applied in an amount approx. 2 g / m2 for anodized aluminum oxide plate and exposed with halide lamp. Using an aromatic nitron s an azido group on the aromatic ring as light sensitive substance isa achieves sensitivity increase in the blue spectrum region. The advantage The proposed system is also that when copying copy template image to Thin light sensitive layer occurs simultaneously to visualize the resulting latent image.
Description
Vynález sa týká svetloeitlivého roztoku určeného na - predsenzibilizáciu platní pre oísétovú tlač naýbáze scitliveného polyanéru alebo zmesi polymérov, ktoré po nanesení v tenkej vrstvě na vhodnú podložku a vysušení možno použif na kopírovanie obrazu kopírovacej předlohy.The present invention relates to a light-sensitive solution intended for pre-sensitizing printing plates to a non-sensitive polyaners or polymer blend which, after being applied in a thin layer to a suitable substrate and dried, can be used to copy an image of a copy.
Princípom fotochemického sposobu zhotovenia kopie v polygrafické] reprodukcii je záznam svetelnej informácie kopírovacej předlohy do vrstvy ácitlivenej nízkomolekulovými, alebo polymérnymi svetlocitlivými látkami. Na zaznamenávanie svetelnej informácie sa používajú organické fotopolyméry, soli šestimocného chrómu, soli striehra, diazozlúčeniny, organické azidy alebo diazidy, nitróny atd'.The principle of the photochemical method of making a copy in polygraphic reproduction is to record the light information of the copying template into a layer sensitized by low-molecular or polymeric photosensitive substances. Organic photopolymers, hexavalent chromium salts, silver salts, diazocompounds, organic azides or diazides, nitrons, etc. are used to record the light information.
Ako polymérny substrát sa vo fotochemie kej reprodukcii využívajú prírodné alebo syntetické polyméry, ktoré po scitlivení svetlocitlivými látkami menia na miestach dopadu žiarenia fyzikálnochemické vlastnosti, najčastejšie rozpustnosť.Natural or synthetic polymers are used as polymeric substrates in photochemical reproduction, which, after sensitization with light-sensitive substances, change the physicochemical properties, most often solubility, at the radiation impact points.
V súčasnosti sa pri vývoji svetlocitlivýoh kompozícií sleduje predovšetkým zvýšenie svetelnej citlivosti, ekologické hledisko a štandardnosť kvality predsenzibilizovanej platné.At present, the development of photosensitive compositions is primarily aimed at increasing the light sensitivity, ecological aspect and standardization of the quality of the pre-sensitized valid.
Z hladiska ochrany životného prostredia sa vývoj orientuje predovšetkým na vodorozpustné svetlocitlivé vrstvy, resp. na vrstvy, pri ktorých hlavnú zložku vývojky tvoří voda.From the environmental protection point of view, the development is oriented mainly on water-soluble light-sensitive layers, resp. to layers where the major component of the developer is water.
Z hladiska štandardnosti a kvality ide predovšetkým o predsenzibilizované tlačové platné, ktoré sa vyznačujú dlhodobou skladovatelnosťou a možnosťou strojového spracovania, beiz zhoršenia reprodukčných a tlačových vlastností.From the standpoint of standard and quality, these are mainly pre-sensitized printing valid, which are characterized by long-term shelf life and the possibility of machine processing, but also the deterioration of reproduction and printing properties.
Využitie svetlocitlivých nitřónov vo fotochemickej reprodukcii uvádza US patent č. 3 416 922. Nevýhodou týchto systémov je, že sa na expozíciu musia používat světelné zdroje s bohatým obsahom ultrafialového žiarenia.The use of light-sensitive nitrons in photochemical reproduction is disclosed in U.S. Pat. The disadvantage of these systems is that light sources rich in ultraviolet radiation must be used for exposure.
Tento· nedostatok rieši svetlocitlivý roztok podlá vynálezu, ktorého podstata je v tom, že na hmotnost polymérneho substrátu obsahuje 0,5 až 50 % hmotnosti C-(4-azidofenyl)-N-fenylnitrónu a 0,5 až 50 % hmotnosti aromatického diazidu. Ako polymérny substrát sa používá metakrézolfnrmaldehydová živica, alebo zmes metakrezolformaldehydovéj živice s polymérmi rozpustnými vo vodě alebo- v zásaditom vodnom roztoku, s výhodou s étermi celulózy. Ako aromatický diazid sa používá 2,6-bis (4‘-azidobenzal)-4-metylcyklohexanón alebo 2,6-bis(4-azidobenzal ] -cyklohexanón.This drawback is solved by the light-sensitive solution according to the invention, characterized in that it contains, by weight of the polymer substrate, 0.5 to 50% by weight of C- (4-azidophenyl) -N-phenylnitrone and 0.5 to 50% by weight of aromatic diazide. The polymeric substrate used is a methacresol formaldehyde resin, or a mixture of metacresol formaldehyde resin with water-soluble polymers or a basic aqueous solution, preferably with cellulose ethers. The aromatic diazide used is 2,6-bis (4‘-azidobenzal) -4-methylcyclohexanone or 2,6-bis (4-azidobenzal] cyclohexanone.
Použitím aromatického nitrónu s azidoskuipinou na aromatickom jadre ako svetlocitlivej látky, sa dosiahne zvýšenie citlivosti v modrej oblasti spektra.By using an aromatic nitrone with azidosuipine on the aromatic nucleus as a photosensitive substance, an increase in the sensitivity in the blue region of the spectrum is achieved.
Ďalšou výhodou navrhovaného systému je, že pri kopírovaní obrazu kopírovacej předlohy do tenkej svetlocitlivej vrstvy dochádza súčasne k vizualizácii vzniknutého latentného obrazu.Another advantage of the proposed system is that when copying an image of a copying original to a thin photosensitive layer, the latent image produced is simultaneously visualized.
Příklad 1Example 1
Svetlocitlivý roztok obsahujúci 6 hmotnostných dielov metakrezolformaldehydovej živice, 3 hmotnostně diely C-(4-azidofenyl)-N-fenylnitrónu, 60 hmotnostných dielov etylceloisolvu a 3Í1 hmotnostných dielov acetónu sa v odstredivke manesie na anodicky oxidovanú hliníkovú plátnu v množstve 2 gramy/m2 a vysuší sa. Na takto pripravemú predscitlivenú plátnu sa kontaktně kopíruje kopírovacia předloha zo vzdialenosti 1,5 m. Použitý zdroj — 5000 W halogenidová výbojka. Expozičný čas — 5 minút. Získaný latentný obraz sa vyvolá v 0,5% roztoku hydroxidu sodného.A light-sensitive solution containing 6 parts by weight of methacresol-formaldehyde resin, 3 parts by weight of C- (4-azidophenyl) -N-phenylnitrone, 60 parts by weight of ethyl cellulose and 3 parts by weight of acetone is centrifuged to anodized aluminum cloth at 2 grams / m 2 it is dried. The pre-sensitized canvas is then copied from a distance of 1.5 m. Lamp used - 5000 W metal halide lamp. Exposure time - 5 minutes. The latent image obtained is developed in 0.5% sodium hydroxide solution.
P r í fc 1 a d 2Example 1 and d 2
-- Svetlocitlivým roiztokom obsahujúcim 7 hmotnostných dielov metakrezolfonmaldeihydovej živice, 3 hmotnostně diely C-(4-azidofenyl)-N-fenylnitrónu, 1 hmotnostný diel 2,6-bis (4‘-azidobenzal) -cyklohexanónu, 59 hmotnostných dielov metyleelosolvu a 30 hmotnostných dielov acetónu sa ovrství anodicky oxidovaná hliníková platňa v množstve 1,8 g/m2. Exponováním 5 000 W halogenidovou výbojkou cez kopírovaciu předlohu sa po vyvolaní v 0,5% roztoku hydroxidu sodného získá dobré viditelný pozitivny obraz. Expozičný čas — 3 minúty.- A light-sensitive solution containing 7 parts by weight of methacresolfone maldehyde resin, 3 parts by weight of C- (4-azidophenyl) -N-phenylnitrone, 1 part by weight of 2,6-bis (4'-azidobenzal) -cyclohexanone, 59 parts by weight of methylolosolv and 30 parts by weight. 1.8 g / m 2 of anodized aluminum plate are coated with acetone. Exposing a 5,000 W metal halide lamp to a copy template yields a good visible positive image when developed in 0.5% sodium hydroxide solution. Exposure time - 3 minutes.
P r í k 1 a d 3EXAMPLE 1 a d 3
Svetlocitlivý roztok zloženia ako v příklade 2 s tým, že ako diazid sa použije 1 ihmotnostný diel 2,6-bis(4‘-azidobenzal )-4-imetylcyklohexanónu. Exponováním 5 000 W halogenídovou výbojkou sa získá po vyvolaní pozitivny obraz výborné) kvality.A photosensitive solution of the composition as in Example 2, with 1 part by weight of 2,6-bis (4‘-azidobenzal) -4-imethylcyclohexanone used as the diazide. Exposure to a 5,000 W halide lamp gives a positive image of excellent quality after induction.
Příklad 4Example 4
Svetlocitlivý roztok zloženia ako v příklade 2 s tým,^e sa do svetlocitlivej kompozície pridajú ešte 2 hmotnostně diely 2-hydroxypropylcelulózy. Po nanesení svetlocitlivej vrstvy na anodicky oxidovanú hliníkovú plátnu sa expozícia skráti na 2 oninúty. .A photosensitive solution of the composition as in Example 2, with the addition of 2 parts by weight of 2-hydroxypropylcellulose to the photosensitive composition. After the light-sensitive layer is applied to the anodized aluminum screen, the exposure is reduced to 2 minutes. .
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS842543A CS241578B1 (en) | 1984-04-03 | 1984-04-03 | Light-sensitive solution for offset printing plates' presensibilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS842543A CS241578B1 (en) | 1984-04-03 | 1984-04-03 | Light-sensitive solution for offset printing plates' presensibilization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS254384A1 CS254384A1 (en) | 1985-08-15 |
| CS241578B1 true CS241578B1 (en) | 1986-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS842543A CS241578B1 (en) | 1984-04-03 | 1984-04-03 | Light-sensitive solution for offset printing plates' presensibilization |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS241578B1 (en) |
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1984
- 1984-04-03 CS CS842543A patent/CS241578B1/en unknown
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| Publication number | Publication date |
|---|---|
| CS254384A1 (en) | 1985-08-15 |
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