EP0004944B1 - Material für elektrophotographische Reproduktion - Google Patents
Material für elektrophotographische Reproduktion Download PDFInfo
- Publication number
- EP0004944B1 EP0004944B1 EP79101123A EP79101123A EP0004944B1 EP 0004944 B1 EP0004944 B1 EP 0004944B1 EP 79101123 A EP79101123 A EP 79101123A EP 79101123 A EP79101123 A EP 79101123A EP 0004944 B1 EP0004944 B1 EP 0004944B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- yellow
- astrazon
- orange
- dye
- mixture
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 title claims description 20
- 239000000975 dye Substances 0.000 claims description 42
- 239000000203 mixture Substances 0.000 claims description 17
- 230000001235 sensitizing effect Effects 0.000 claims description 13
- 238000007639 printing Methods 0.000 claims description 8
- 239000011230 binding agent Substances 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 5
- 239000001003 triarylmethane dye Substances 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- LLWJPGAKXJBKKA-UHFFFAOYSA-N victoria blue B Chemical compound [Cl-].C1=CC(N(C)C)=CC=C1C(C=1C=CC(=CC=1)N(C)C)=C(C=C1)C2=CC=CC=C2C1=[NH+]C1=CC=CC=C1 LLWJPGAKXJBKKA-UHFFFAOYSA-N 0.000 claims description 4
- LORKUZBPMQEQET-UHFFFAOYSA-M (2e)-1,3,3-trimethyl-2-[(2z)-2-(1-methyl-2-phenylindol-1-ium-3-ylidene)ethylidene]indole;chloride Chemical compound [Cl-].CC1(C)C2=CC=CC=C2N(C)\C1=C/C=C(C1=CC=CC=C1[N+]=1C)/C=1C1=CC=CC=C1 LORKUZBPMQEQET-UHFFFAOYSA-M 0.000 claims description 3
- ZOMLUNRKXJYKPD-UHFFFAOYSA-N 1,3,3-trimethyl-2-[2-(2-methylindol-3-ylidene)ethylidene]indole;hydrochloride Chemical compound [Cl-].C1=CC=C2C(C)(C)C(/C=C/C=3C4=CC=CC=C4NC=3C)=[N+](C)C2=C1 ZOMLUNRKXJYKPD-UHFFFAOYSA-N 0.000 claims description 3
- DSZCWNRVMXBILR-UHFFFAOYSA-M (2z)-1,3,3-trimethyl-2-[2-(2-methyl-2,3-dihydroindol-1-ium-1-ylidene)ethylidene]indole;chloride Chemical compound [Cl-].CN/1C2=CC=CC=C2C(C)(C)C\1=C/C=[N+]1C2=CC=CC=C2CC1C DSZCWNRVMXBILR-UHFFFAOYSA-M 0.000 claims description 2
- FJKUOCCQEBLPNX-UHFFFAOYSA-N 8-hydroxyquinoline N-oxide Chemical compound C1=C[N+]([O-])=C2C(O)=CC=CC2=C1 FJKUOCCQEBLPNX-UHFFFAOYSA-N 0.000 claims description 2
- JROAZQFKSSYEBL-TWNXTNBYSA-L disodium;5-[(z)-(3-carboxy-5-methyl-4-oxocyclohexa-2,5-dien-1-ylidene)-(2,6-dichlorophenyl)methyl]-3-methyl-2-oxidobenzoate Chemical compound [Na+].[Na+].C1=C(C([O-])=O)C(=O)C(C)=C\C1=C(C=1C(=CC=CC=1Cl)Cl)/C1=CC(C)=C(O)C(C([O-])=O)=C1 JROAZQFKSSYEBL-TWNXTNBYSA-L 0.000 claims description 2
- 229940107698 malachite green Drugs 0.000 claims description 2
- FDZZZRQASAIRJF-UHFFFAOYSA-M malachite green Chemical compound [Cl-].C1=CC(N(C)C)=CC=C1C(C=1C=CC=CC=1)=C1C=CC(=[N+](C)C)C=C1 FDZZZRQASAIRJF-UHFFFAOYSA-M 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- UWGCNDBLFSEBDW-UHFFFAOYSA-M sodium;4-[[4-(diethylamino)phenyl]-(4-diethylazaniumylidenecyclohexa-2,5-dien-1-ylidene)methyl]naphthalene-2,7-disulfonate Chemical compound [Na+].C1=CC(N(CC)CC)=CC=C1C(C=1C2=CC=C(C=C2C=C(C=1)S([O-])(=O)=O)S([O-])(=O)=O)=C1C=CC(=[N+](CC)CC)C=C1 UWGCNDBLFSEBDW-UHFFFAOYSA-M 0.000 claims description 2
- QAMCXJOYXRSXDU-UHFFFAOYSA-N 2,4-dimethoxy-n-[2-(1,3,3-trimethylindol-1-ium-2-yl)ethenyl]aniline;chloride Chemical compound [Cl-].COC1=CC(OC)=CC=C1NC=CC1=[N+](C)C2=CC=CC=C2C1(C)C QAMCXJOYXRSXDU-UHFFFAOYSA-N 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 description 12
- 230000003595 spectral effect Effects 0.000 description 12
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 8
- 229960001506 brilliant green Drugs 0.000 description 7
- HXCILVUBKWANLN-UHFFFAOYSA-N brilliant green cation Chemical compound C1=CC(N(CC)CC)=CC=C1C(C=1C=CC=CC=1)=C1C=CC(=[N+](CC)CC)C=C1 HXCILVUBKWANLN-UHFFFAOYSA-N 0.000 description 7
- 239000011888 foil Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 229920001577 copolymer Polymers 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 4
- 230000033458 reproduction Effects 0.000 description 4
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000007645 offset printing Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 3
- QGKMIGUHVLGJBR-UHFFFAOYSA-M (4z)-1-(3-methylbutyl)-4-[[1-(3-methylbutyl)quinolin-1-ium-4-yl]methylidene]quinoline;iodide Chemical compound [I-].C12=CC=CC=C2N(CCC(C)C)C=CC1=CC1=CC=[N+](CCC(C)C)C2=CC=CC=C12 QGKMIGUHVLGJBR-UHFFFAOYSA-M 0.000 description 2
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- UZGVMZRBRRYLIP-UHFFFAOYSA-N 4-[5-[4-(diethylamino)phenyl]-1,3,4-oxadiazol-2-yl]-n,n-diethylaniline Chemical compound C1=CC(N(CC)CC)=CC=C1C1=NN=C(C=2C=CC(=CC=2)N(CC)CC)O1 UZGVMZRBRRYLIP-UHFFFAOYSA-N 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 2
- 206010070834 Sensitisation Diseases 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- DPKHZNPWBDQZCN-UHFFFAOYSA-N acridine orange free base Chemical compound C1=CC(N(C)C)=CC2=NC3=CC(N(C)C)=CC=C3C=C21 DPKHZNPWBDQZCN-UHFFFAOYSA-N 0.000 description 2
- BGLGAKMTYHWWKW-UHFFFAOYSA-N acridine yellow Chemical compound [H+].[Cl-].CC1=C(N)C=C2N=C(C=C(C(C)=C3)N)C3=CC2=C1 BGLGAKMTYHWWKW-UHFFFAOYSA-N 0.000 description 2
- -1 anthracene Chemical class 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 150000001491 aromatic compounds Chemical class 0.000 description 2
- DZBUGLKDJFMEHC-UHFFFAOYSA-N benzoquinolinylidene Natural products C1=CC=CC2=CC3=CC=CC=C3N=C21 DZBUGLKDJFMEHC-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 150000002391 heterocyclic compounds Chemical class 0.000 description 2
- 125000000623 heterocyclic group Chemical group 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- KKFHAJHLJHVUDM-UHFFFAOYSA-N n-vinylcarbazole Chemical compound C1=CC=C2N(C=C)C3=CC=CC=C3C2=C1 KKFHAJHLJHVUDM-UHFFFAOYSA-N 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N perisophthalic acid Natural products OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000008313 sensitization Effects 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- HYGLETVERPVXOS-UHFFFAOYSA-N 1-bromopyrene Chemical compound C1=C2C(Br)=CC=C(C=C3)C2=C2C3=CC=CC2=C1 HYGLETVERPVXOS-UHFFFAOYSA-N 0.000 description 1
- JJQOKUCYWIGCIN-UHFFFAOYSA-N 4-[4-(2-chlorophenyl)-2-ethenyl-1,3-oxazol-5-yl]-n,n-diethylaniline Chemical compound C1=CC(N(CC)CC)=CC=C1C1=C(C=2C(=CC=CC=2)Cl)N=C(C=C)O1 JJQOKUCYWIGCIN-UHFFFAOYSA-N 0.000 description 1
- MPVDXIMFBOLMNW-ISLYRVAYSA-N 7-hydroxy-8-[(E)-phenyldiazenyl]naphthalene-1,3-disulfonic acid Chemical compound OC1=CC=C2C=C(S(O)(=O)=O)C=C(S(O)(=O)=O)C2=C1\N=N\C1=CC=CC=C1 MPVDXIMFBOLMNW-ISLYRVAYSA-N 0.000 description 1
- 229910004806 Na2 SiO3.9H2 O Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002318 adhesion promoter Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 150000002460 imidazoles Chemical class 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 229940079865 intestinal antiinfectives imidazole derivative Drugs 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- 150000007978 oxazole derivatives Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- DNXIASIHZYFFRO-UHFFFAOYSA-N pyrazoline Chemical compound C1CN=NC1 DNXIASIHZYFFRO-UHFFFAOYSA-N 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229940043267 rhodamine b Drugs 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 150000001651 triphenylamine derivatives Chemical class 0.000 description 1
- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- ROVRRJSRRSGUOL-UHFFFAOYSA-N victoria blue bo Chemical compound [Cl-].C12=CC=CC=C2C(NCC)=CC=C1C(C=1C=CC(=CC=1)N(CC)CC)=C1C=CC(=[N+](CC)CC)C=C1 ROVRRJSRRSGUOL-UHFFFAOYSA-N 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Images
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
- G03G5/09—Sensitisors or activators, e.g. dyestuffs
Definitions
- the present invention relates to an electrophotographic recording material composed of an electrically conductive layer support, in particular suitable for the production of printing forms or printed circuits, and a panchromatically sensitized photoconductive layer composed of organic photoconductor, binder, sensitizing dye and conventional additives.
- an electrophotographic recording material composed of an electrically conductive layer support which is particularly suitable for the production of printing forms or printed circuits and a panchromatically sensitized photoconductive layer composed of organic photoconductor, binder, sensitizing dye from a mixture of water-soluble polymethine and triaryl methane dye and customary additives, which characterized in that the photoconductive layer as polymethine dye astrazone orange R (CI 48 040), astrazone orange G (CI 48 035), astrazone yellow 3G (CI 48055), astrazone yellow 5G (CI 48065), basic yellow 52115 (CI 48 060), astrazone yellow GRL (CI Basic Yellow 29), Astrazongelb 7GLL (CI Basic Yellow 21), Astragelb R (CI Basic Yellow 44) or Astrazonorange 3R (CI Basic Orange 27) and as triarylmethane dye malachite green (CI 42 000), brilliant green (CI 42 040) , Acid violet 6BN (CI 42 552), crystal violet (C.
- the photoconductive layer
- the recording material according to the invention is particularly useful when the photoconductive layer has to be further treated after decoating by decoating the non-image parts.
- the amount of dyes to be used also decreases depending on the type of photoconductor used. Since the sensitizer dyes are generally salts whose addition to the photoconductor layer causes a certain dark conductivity, the use of a smaller amount very often brings about improved electrophotographic properties of the layer. Panchromatic sensitization in itself has advantages in that the light provided by the light sources used in reproduction technology is better utilized. In practice, this means shorter exposure times and thus time and energy savings. It is also possible, because of the improved properties, to reduce the proportion of photoconductor in the photoconductive layer.
- the recording material in the photoconductive layer preferably contains astrazone orange R as the sensitizing dye and brilliant green or crystal violet or victoria blue B.
- the mixing ratio of the sensitizing dyes to one another is variable and depends, for example, on the light source present in the copier, on the absorption region of the photoconductor used and on the type of the respective sensitizer. The ratio can therefore fluctuate within wide limits.
- the spectral range of the photoconductive layer can be adapted to the lamp type used in the copying machine by a certain mixture. When using the conventional halogen tungsten lamps, taking into account the increasing emission of these lamps in the red spectral range, it is advantageous to have a photoconductor layer which has a higher or increasing sensitivity in the short-wave spectral range.
- the mixing ratio of the dyes is not critical, sensitizing mixtures containing about 25 to 90 percent by weight, based on the mixture, of polymethine dye are generally preferred.
- the proportion by weight of sensitizing dye mixture in the photoconductive layer can also be different and depends essentially on the desired or required sensitivity.
- the amount by weight of dye mixture will generally vary between about 5 and about 0.001% based on the photoconductor.
- Monomers such as polymeric aromatic and heterocyclic compounds are suitable as organic photoconductors.
- Particularly heterocyclic compounds such as oxdiazole derivatives, which are mentioned in German patent 1,058,836, are used as monomers. These include, in particular, 2,5-bis (p-diethylaminaphenyl) axdiazal-1,3,4.
- Other suitable monomeric photoconductive compounds are, for example, triphenylamine derivatives, more highly condensed aromatic compounds such as anthracene, benzo-fused heterocycles, pyrazoline or imidazole derivatives, including triazole and oxazole derivatives as disclosed in German Patents 1,060,260 and 1,120,875 .
- suitable polymers are vinylaromatic polymers such as polyvinylanthracene, polyacenaphthylene or their copolymers. Poly-N-vinylcarbazole or copolymers of N-vinylcarbazole with an N-vinylcarbazole content of at least about 40% have proven particularly useful. Also suitable are formaldehyde condensation products with various aromatics such as. B. condensates of formaldehyde and 3-bromopyrene.
- Natural or synthetic resins are suitable as binders with regard to flexibility, film properties and adhesive strength. These include in particular polyester resins such.
- polyester resins such as B. Mixed polyester of iso- and terephthalic acid with glycol.
- Silicone resins such as three-dimensionally cross-linked phenylmethyl siloxanes or so-called reactive resins, as are known under the name DD lacquers, have also proven to be suitable.
- Copolymers of styrene and maleic anhydride, but also polycarbonate resins, can also be used well.
- the proportion by weight of binder to photoconductor in the photoconductive layer is different and will generally be greater in the presence of monomeric photoconductors, sometimes over 50%, preferably in a ratio of about 1: 1, than in the presence of polymeric photoconductors, where the binder can also be entirely absent .
- plastic foils made superficially conductive or specially made conductive foils against the penetration of solvents are suitable as layer support materials for the panchromatically sensitized photoconductor layers.
- Plastic films made superficially conductive are used when an electrophotographic film material is to be produced using the panchromatically sensitized layer. If the material sensitized according to the invention is used in the field of office copying, paper is used as the carrier material.
- metallic layer supports in particular aluminum
- the aluminum foils used are expediently roughened mechanically or electrochemically on the surface and, in special cases, anodized.
- the electrophotographic recording material can contain leveling agents and plasticizers as conventional additives in the photoconductive layer and / or adhesion promoters between the layer support and the layer.
- a panchromatic layer is first produced, as described in DE-OS 1 447 907 under Example 2. To do this, dissolve 2 g
- the comparison layer is obtained if 5 mg of astrazone orange R (C. 1. 48 040) and 1 mg of brilliant green (CI 42 040) are added to the solution of photoconductor and binder described above instead of the four dyes mentioned, a composition which corresponds to the material for curve 3 in the attached figure.
- the energy required to discharge the layer charged to -400 V in the dark to -50 V is 45 ⁇ J / cm 2 at 487 nm, 41 ⁇ J / cm 2 at 505 nm, 62 ⁇ J / cm 2 at 532 nm, and 168 at 552 nm ⁇ J / cm 2 and at 650 nm 156 ⁇ J / cm 2 .
- the solution is applied to an electrochemically roughened and anodized aluminum foil which was aftertreated in accordance with DE-OS 1621 478 with polyvinylphosphonic acid. After the solvent has evaporated, a photoconductor layer which is sensitive in the spectral range from 400 to 700 nm is obtained, with the aid of which a printing form for offset printing is produced in the following way.
- the layer is charged in the dark with a corona to -430 volts and exposed in a repro camera at aperture 14 for ten seconds, using 10 MH lamps of 600 W each as the light source.
- the resulting latent charge pattern is developed with a dry toner using a magnetic roller.
- the toner image is fixed by the action of heat.
- a panchromatic photoconductor layer for the production of a printing form for small offset printing is obtained if a solution of 5 g of 2,5-bis (p-diethylaminophenyl) -1,3,4-oxdiazole and 5 g of a copolymer of styrene and maleic anhydride are combined in one Mixture of 62 g of methylglycol, 15 g of butyl acetate (85%) and 13 g of butanone, 250 mg of astra yellow (CI Basic Yellow 44) and 50 mg of victoria pure blue (CI 42 595) are added, and this solution onto a mechanically roughened 100 ⁇ thick aluminum foil so that after evaporation of the solvent an approximately 5 micron thick layer is formed.
- the layer is charged to -400V in the dark and exposed in a repro camera for 20 seconds at aperture 11, 8 light bulbs of 500 watts each being used as the light source.
- the resulting latent charge image is developed with a liquid developer as described in British Patent No. 1465 926.
- a liquid developer as described in British Patent No. 1465 926.
- the photoconductor layer is removed at the non-image areas, using a solution whose preparation is described in Example 1.
- a printing plate for small offset printing with a circulation stability of 60,000 to 80,000 copies is obtained.
- panchromatically sensitive layer for an electrophotograph
- the film material is dissolved in 21 g of polyvinyl carbazole in a mixture of 150 g of toluene, 75 g of tetrahydrofuran and 75 g of dimethylformamide.
- 21 mg of crystal violet (CI 42 555) and 7 mg of astrazone orange R (CI 48 040) are added to the solution and applied to a polyester film made superficially conductive by vaporization with indium tin oxide. After the solvents have evaporated, a panchromatic film material is obtained which can be used as an electrophotographic duplicating film.
- the film is charged in the dark to a surface potential of -400 V and exposed in contact under a film negative, the exposure time for a 100 watt lamp at a distance of 65 cm being 10 seconds.
- the charge image is developed with a commercially available developer, the developer particles of which are negatively charged. The result is a high-contrast film positive with good resolution.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photoreceptors In Electrophotography (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2817428 | 1978-04-21 | ||
DE19782817428 DE2817428A1 (de) | 1978-04-21 | 1978-04-21 | Material fuer elektrophotographische reproduktion |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0004944A2 EP0004944A2 (de) | 1979-10-31 |
EP0004944A3 EP0004944A3 (en) | 1979-11-14 |
EP0004944B1 true EP0004944B1 (de) | 1983-02-09 |
Family
ID=6037636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP79101123A Expired EP0004944B1 (de) | 1978-04-21 | 1979-04-12 | Material für elektrophotographische Reproduktion |
Country Status (8)
Country | Link |
---|---|
US (1) | US4252880A (sv) |
EP (1) | EP0004944B1 (sv) |
JP (1) | JPS54145538A (sv) |
AT (1) | AT392852B (sv) |
BR (1) | BR7902457A (sv) |
CA (1) | CA1123254A (sv) |
DE (2) | DE2817428A1 (sv) |
ZA (1) | ZA791899B (sv) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2949826A1 (de) * | 1979-12-12 | 1981-06-19 | Hoechst Ag, 6230 Frankfurt | Material fuer elektrophotographische reproduktion |
JPS57147656A (en) * | 1981-03-09 | 1982-09-11 | Fuji Photo Film Co Ltd | Electrophotographic sensitive printing plate material |
DE3210576A1 (de) * | 1982-03-23 | 1983-10-06 | Hoechst Ag | Elektrophotographisches aufzeichnungsmaterial |
JPS60118847A (ja) * | 1983-11-30 | 1985-06-26 | Dainippon Printing Co Ltd | 画像形成材料及び画像形成方法 |
DE3560654D1 (en) * | 1984-02-18 | 1987-10-22 | Basf Ag | Photosensitive recording material |
DE3506436A1 (de) * | 1985-02-23 | 1986-08-28 | Hoechst Ag, 6230 Frankfurt | Neue sulfonhaltige styrolderivate, verfahren zu deren herstellung und deren verwendung |
DE3509147A1 (de) * | 1985-03-14 | 1986-09-18 | Hoechst Ag, 6230 Frankfurt | Elektrophotographisches aufzeichnungsmaterial |
DE3513747A1 (de) * | 1985-04-17 | 1986-10-23 | Hoechst Ag, 6230 Frankfurt | Elektrophotographisches aufzeichnungsmaterial |
DE3541534A1 (de) * | 1985-11-25 | 1987-05-27 | Hoechst Ag | Positiv arbeitendes strahlungsempfindliches gemisch |
JPH02216160A (ja) * | 1989-02-17 | 1990-08-29 | Iwatsu Electric Co Ltd | 電子写真感光体 |
DE3938708A1 (de) * | 1989-11-17 | 1991-05-23 | Berolina Schriftbild | Verfahren zur behandlung eines fotoleiters |
WO2002072714A1 (de) * | 2001-03-10 | 2002-09-19 | Covion Organic Semiconductors Gmbh | Lösung und dispersionen organischer halbleiter |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE538610A (sv) * | 1954-06-02 | |||
US3238149A (en) * | 1961-07-10 | 1966-03-01 | Method for improxvlnxg the the photocondug thqe response of dye sensitized zinc ox de | |
NL137097C (sv) * | 1962-02-17 | |||
FR1375297A (fr) * | 1962-09-21 | 1964-10-16 | Kalle Ag | Couches sensibles pour électrophotographie et leur procédé de préparation |
DE1447907A1 (de) * | 1964-01-11 | 1968-12-05 | Kalle Ag | Elektrophotographischer Mehrfarbendruck |
US3512966A (en) * | 1965-07-26 | 1970-05-19 | Ibm | Process of electrophotographic recording employing persistent organic photoconductive compositions |
JPS492638B1 (sv) * | 1970-11-17 | 1974-01-22 | ||
US4025340A (en) * | 1971-11-10 | 1977-05-24 | Fuji Photo Film Co., Ltd. | Process for toning electrophotographic photosensitive material |
AU507694B2 (en) * | 1975-06-14 | 1980-02-21 | Hoechst Aktiengesellschaft | Electrophotographic reproduction |
-
1978
- 1978-04-21 DE DE19782817428 patent/DE2817428A1/de not_active Withdrawn
-
1979
- 1979-04-12 DE DE7979101123T patent/DE2964691D1/de not_active Expired
- 1979-04-12 EP EP79101123A patent/EP0004944B1/de not_active Expired
- 1979-04-19 AT AT2967/79A patent/AT392852B/de not_active IP Right Cessation
- 1979-04-19 JP JP4731479A patent/JPS54145538A/ja active Granted
- 1979-04-19 CA CA325,898A patent/CA1123254A/en not_active Expired
- 1979-04-20 ZA ZA791899A patent/ZA791899B/xx unknown
- 1979-04-20 US US06/031,971 patent/US4252880A/en not_active Expired - Lifetime
- 1979-04-20 BR BR7902457A patent/BR7902457A/pt unknown
Non-Patent Citations (1)
Title |
---|
RESEARCH DISCLOSURES - PRODUCT LICENSING INDEX, No. 99, Juli 1972, abstract 9913 HAMPSHIRE (UK) "Supersensitization of spectrally sensitized p-type photoconductive systems", Seiten 54-55 * |
Also Published As
Publication number | Publication date |
---|---|
BR7902457A (pt) | 1979-10-30 |
JPS54145538A (en) | 1979-11-13 |
JPS6251462B2 (sv) | 1987-10-30 |
ZA791899B (en) | 1980-04-30 |
AT392852B (de) | 1991-06-25 |
US4252880A (en) | 1981-02-24 |
EP0004944A2 (de) | 1979-10-31 |
DE2964691D1 (en) | 1983-03-17 |
EP0004944A3 (en) | 1979-11-14 |
CA1123254A (en) | 1982-05-11 |
DE2817428A1 (de) | 1979-10-31 |
ATA296779A (de) | 1990-11-15 |
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