US3234021A - Photocopying and transfer process involving photopolymerization - Google Patents
Photocopying and transfer process involving photopolymerization Download PDFInfo
- Publication number
- US3234021A US3234021A US230760A US23076062A US3234021A US 3234021 A US3234021 A US 3234021A US 230760 A US230760 A US 230760A US 23076062 A US23076062 A US 23076062A US 3234021 A US3234021 A US 3234021A
- Authority
- US
- United States
- Prior art keywords
- emulsion
- transfer
- photopolymerization
- silver
- silver iodide
- 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 - Lifetime
Links
- 238000012546 transfer Methods 0.000 title claims description 32
- 238000000034 method Methods 0.000 title claims description 24
- 239000000839 emulsion Substances 0.000 claims description 29
- 239000003054 catalyst Substances 0.000 claims description 15
- 239000000178 monomer Substances 0.000 claims description 15
- JKFYKCYQEWQPTM-UHFFFAOYSA-N 2-azaniumyl-2-(4-fluorophenyl)acetate Chemical compound OC(=O)C(N)C1=CC=C(F)C=C1 JKFYKCYQEWQPTM-UHFFFAOYSA-N 0.000 claims description 12
- 229910021612 Silver iodide Inorganic materials 0.000 claims description 12
- 229940045105 silver iodide Drugs 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 6
- 229940100890 silver compound Drugs 0.000 claims description 5
- 150000003379 silver compounds Chemical class 0.000 claims description 5
- XLYOFNOQVPJJNP-PWCQTSIFSA-N Tritiated water Chemical compound [3H]O[3H] XLYOFNOQVPJJNP-PWCQTSIFSA-N 0.000 claims 1
- 239000011248 coating agent Substances 0.000 description 18
- 238000000576 coating method Methods 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- -1 silver halide Chemical class 0.000 description 8
- 239000003431 cross linking reagent Substances 0.000 description 7
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 7
- 229920002554 vinyl polymer Polymers 0.000 description 7
- 108010010803 Gelatin Proteins 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 229920000159 gelatin Polymers 0.000 description 6
- 239000008273 gelatin Substances 0.000 description 6
- 235000019322 gelatine Nutrition 0.000 description 6
- 235000011852 gelatine desserts Nutrition 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 3
- 229940117913 acrylamide Drugs 0.000 description 3
- OIDPCXKPHYRNKH-UHFFFAOYSA-J chrome alum Chemical compound [K]OS(=O)(=O)O[Cr]1OS(=O)(=O)O1 OIDPCXKPHYRNKH-UHFFFAOYSA-J 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 229910001961 silver nitrate Inorganic materials 0.000 description 3
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 description 3
- 239000004408 titanium dioxide Substances 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000008199 coating composition Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000001397 quillaja saponaria molina bark Substances 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229930182490 saponin Natural products 0.000 description 2
- 150000007949 saponins Chemical class 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 1
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- OZCMOJQQLBXBKI-UHFFFAOYSA-N 1-ethenoxy-2-methylpropane Chemical compound CC(C)COC=C OZCMOJQQLBXBKI-UHFFFAOYSA-N 0.000 description 1
- BJELTSYBAHKXRW-UHFFFAOYSA-N 2,4,6-triallyloxy-1,3,5-triazine Chemical compound C=CCOC1=NC(OCC=C)=NC(OCC=C)=N1 BJELTSYBAHKXRW-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
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- GNUGVECARVKIPH-UHFFFAOYSA-N 2-ethenoxypropane Chemical compound CC(C)OC=C GNUGVECARVKIPH-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 239000011837 N,N-methylenebisacrylamide Substances 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 125000005605 benzo group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- TXTCTCUXLQYGLA-UHFFFAOYSA-L calcium;prop-2-enoate Chemical compound [Ca+2].[O-]C(=O)C=C.[O-]C(=O)C=C TXTCTCUXLQYGLA-UHFFFAOYSA-L 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 210000001072 colon Anatomy 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- 239000012969 di-tertiary-butyl peroxide Substances 0.000 description 1
- 239000012954 diazonium Substances 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-O diazynium Chemical compound [NH+]#N IJGRMHOSHXDMSA-UHFFFAOYSA-O 0.000 description 1
- MEGHWIAOTJPCHQ-UHFFFAOYSA-N ethenyl butanoate Chemical compound CCCC(=O)OC=C MEGHWIAOTJPCHQ-UHFFFAOYSA-N 0.000 description 1
- 208000016253 exhaustion Diseases 0.000 description 1
- 238000007687 exposure technique Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 1
- UUORTJUPDJJXST-UHFFFAOYSA-N n-(2-hydroxyethyl)prop-2-enamide Chemical compound OCCNC(=O)C=C UUORTJUPDJJXST-UHFFFAOYSA-N 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- UCUUFSAXZMGPGH-UHFFFAOYSA-N penta-1,4-dien-3-one Chemical class C=CC(=O)C=C UCUUFSAXZMGPGH-UHFFFAOYSA-N 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 150000003378 silver Chemical class 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 description 1
- 150000004897 thiazines Chemical class 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- KOZCZZVUFDCZGG-UHFFFAOYSA-N vinyl benzoate Chemical compound C=COC(=O)C1=CC=CC=C1 KOZCZZVUFDCZGG-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/34—Imagewise removal by selective transfer, e.g. peeling away
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
- G03F7/028—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with photosensitivity-increasing substances, e.g. photoinitiators
- G03F7/0285—Silver salts, e.g. a latent silver salt image
Definitions
- the present invention relates to a photographic copying. and transfer process for the reproduction. of printed matter and, more particularly, to such a process in which a ph-otopolymerization system is utilized.
- the prior methods are based on the employment of light-sensitive, substantially unhardened silver halide emulsions which after'exposure undergo differential hardening by subjecting them to a' gelatin tanning silver halide developer such as pyrocatechol, 3,4-dihydroxy-diphenyl- 2,5-dihydroxy-diphenyl or the like.
- a' gelatin tanning silver halide developer such as pyrocatechol, 3,4-dihydroxy-diphenyl- 2,5-dihydroxy-diphenyl or the like.
- the developing agent and a dye-forming component are incorporated in the emulsion so that upon development, diiferential hardening and dye formation take place in the processed emulsion.
- these methods lie in the fact that they depend upon the conjoint use of silver halide emulsions and processing solutions, the latter being subjected to temperature control and progressive exhaustion.
- a coating is made, for example, on paper, consisting of a vinyl monomer such :as acrylamide and a cross-linking agent such as N,N-methylene-bisacrylamide to which is added a certain amount of a colloidal carrier such as gelatin and a light-sensitive photopolymerization catalyst such as a water soluble silver salt, i.e.,, silver nitrate.
- a vinyl monomer such as :as acrylamide and a cross-linking agent such as N,N-methylene-bisacrylamide
- a colloidal carrier such as gelatin
- a light-sensitive photopolymerization catalyst such as a water soluble silver salt, i.e., silver nitrate.
- the paper bearing the coating is brought into intimate contact with the document to be reproduced and ex-
- the surface of the coating is moistened slightly, for instance by exposing the coating for a few seconds to a fine stream of water vapor, and it is then placed firmly against a transfer paper which may be any ordinary white paper with a slightly roughened surface. After a few seconds the papers are separated and it will be found that strata of the unpolymen'zed parts of the coating or emulsion are transferred to the second paper.
- unpolymerized transferred material may be exposed fur-- tlier to cause it to photopolymerize to a hardened mass. After renewed moistening of the coating, the transfer process may be repeated several times.
- either the coating or the transferred resist' may be dyed with a water soluble dark ink by bathing or roller-inking.
- the transfer paper should have a water repellent surface coating such as of wax to prevent penetration of the ink into the paper fibers.
- the transfer sheet when silver iodide is employed should contain a sensitizer for silver iodide such as monomethyl-paminophenol sulfate, 0-, mor p-dihydroxybenzene, 4-amino-6-sulfo-a-naphthol or the like.
- a sensitizer for silver iodide such as monomethyl-paminophenol sulfate, 0-, mor p-dihydroxybenzene, 4-amino-6-sulfo-a-naphthol or the like.
- acrylamide mentioned as the vinyl monomer
- vinyl monomer any other polymerizable vinyl compound whether water or solvent soluble, i.e., in acetone, butyl acetate, alcohol or the like.
- Illustrative of such monomers are acrylonitrile, N-hydroxyethyl acryl-amide, methacrylic acid, acrylic acid, calcium acrylate, methacrylamide, vinyl acetate, methylmethacrylate, methylacrylate, ethylacrylate, vinyl benzoate, vinyl pyrrolidone,
- Cross-linking agents such as the N,N-methylene'-bisacrylamidepreviously mentioned serve to increase the molecular'weight and hence the physical hardness of the polymer obtained by photopolymerization.
- the use of the cross-linking agents is, therefore, recommended and for this purpose we utilize an unsaturated compound containing at least two terminal vinyl groups each linked to a carbon atom in a straight chain or in a ring, of which N,l l'-methylene-bis-acrylamide is an example.
- Other agents which may be employed are those described, for example, by Kropa and Bradley in Vol. 31, No. 12, of Industrial and Engineering Chemistry, 1939.
- cross-linking agents may be mentioned triallyl cyanurate, divinyl benzene, divinyl ketones and diglycol-diacrylate. Uusually the cross-linking agent is employed in for our purposes.
- the coating of the negative emulsion containing the monomer and photopolymerization catalyst includes a colloidal carrier in which the monomer and catalyst are dispersed.
- These carriers usual in photography, will be gelatin, polyvinyl alcohol, carboxymethyl cellulose, casein or the like.
- Example: II The following coating formula is used for the negative emulsion.
- the exposure technique isthe same as in'Example'L.
- the paper used as the transfer medium is impregnated with the; following solution:
- transfer process may be repeated 35 times after renewed moistening of the negative emulsion.
- the original is formed ,on the exposed material.
- a method of photographic reproduction which comprises exposing reflexwise a translucent base carrying a light-sensitive emulsion containing a polymerizable ethylenically unsaturated monomer and a water-soluble radiation-sensitive silver compound as the photopolymerization catalyst and silver iodide in a hydrophilic colloidal carrier to a subject to effect photopolymerization and hardening of the emulsion only in the non-image areas of the subject, moistening the emulsion with water, rolling the emulsion against a transfer sheet containing a sensitizer for silver iodide to effect physical transfer of the unpolymerized parts of the emulsion to the transfer sheet, separating the transfer sheet from the emulsion and exposing the transfer sheet to light to produce a resist containing a silver iodide print-out image.
- the photopolymerization catalyst is a water-soluble, radiation-sensitive, light-sensitive silver compound promoted by an amphoteric metal oxide.
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
- Polymerisation Methods In General (AREA)
- Graft Or Block Polymers (AREA)
- Catalysts (AREA)
- Color Printing (AREA)
Description
United States Patent 3,234,021 PHOTOCOPYING AND TRANSFER PROCESS INVOLVING PHOTGPOLYMERIZATION Andre K. Schwerin, deceased, late of Binghamton, N.Y., by Johanna Schwerin, administratrix, Binghamton, N;Y., and Steven Levinos, Vestal, and Fritz W. H. Mueller, Binghamton, N.Y., assignors to General Aniline & Film Corporation, New York, N.Y., a corporation'ofDelaware No Drawing. Continuation of application Ser. No. 783,715, Dec. 30, 1958. This application Oct. 15, 1962, Ser. No..230,760.
Claims. (Cl. 9628) This application is a continuation-in-part of application Serial No. 731,538 filed April 28, 1958, and a continuation of'Serial' No. 783,715v filed December 30, 1958, both now abandoned.
The present invention relates to a photographic copying. and transfer process for the reproduction. of printed matter and, more particularly, to such a process in which a ph-otopolymerization system is utilized.
There are a number of well-known methods of reproducing printed matter while using differentially hardened silver salt emulsion layers and transferring unhardened strata of such layers to a support preferably paper. In general, the so-called reflex copy method is used by which anemulsion layer is exposed through its support and a positive image is obtained from a document or other printed matter. Such procedures are disclosed, for example, in US. Patents 2,592,368, 2,596,756, 2,716,059 and German Patent 1,015,313.
The prior methods are based on the employment of light-sensitive, substantially unhardened silver halide emulsions which after'exposure undergo differential hardening by subjecting them to a' gelatin tanning silver halide developer such as pyrocatechol, 3,4-dihydroxy-diphenyl- 2,5-dihydroxy-diphenyl or the like. In some of these methods, the developing agent and a dye-forming component are incorporated in the emulsion so that upon development, diiferential hardening and dye formation take place in the processed emulsion. these methods lie in the fact that they depend upon the conjoint use of silver halide emulsions and processing solutions, the latter being subjected to temperature control and progressive exhaustion.
We have now devised a simple method for producing positive prints by a transfer process in. which a polymerizable vinyl monomer and a light-sensitive polymerization catalyst are coated in a colloidal carrier onto a base such as paper, film or the like, the coating exposed reflexwiseto a suitable subject and after slight moistening, sqeegeed against another support such as paper to effect transfer to the second support of the unpolymerized portions of the exposed coating. The portions of thecoating which are transferred may then be hardened by further photopolymerization and/ or by treating with a coloring material to improve contrast.
The reproduction of images, particularly printed matter, by such method and the materials for use therein constitute the purposes and objects of our. invention.
In our procedure, a coating is made, for example, on paper, consisting of a vinyl monomer such :as acrylamide and a cross-linking agent such as N,N-methylene-bisacrylamide to which is added a certain amount of a colloidal carrier such as gelatin and a light-sensitive photopolymerization catalyst such as a water soluble silver salt, i.e.,, silver nitrate. The above compounds are dissolved in water and the solution coated to a thickness of 5 to mu on a suitable translucent support such as paper.
The paper bearing the coating is brought into intimate contact with the document to be reproduced and ex- The disadvantages of "ice posed reflexwise with an incandescent light source, i.e., through the support bearing the coated emulsion. After exposure, the surface of the coating is moistened slightly, for instance by exposing the coating for a few seconds to a fine stream of water vapor, and it is then placed firmly against a transfer paper which may be any ordinary white paper with a slightly roughened surface. After a few seconds the papers are separated and it will be found that strata of the unpolymen'zed parts of the coating or emulsion are transferred to the second paper. The
unpolymerized transferred material may be exposed fur-- tlier to cause it to photopolymerize to a hardened mass. After renewed moistening of the coating, the transfer process may be repeated several times.
In order to obtain a visible contrasty image on the transfer paper, either the coating or the transferred resist'may be dyed with a water soluble dark ink by bathing or roller-inking. In such case, the transfer paper should have a water repellent surface coating such as of wax to prevent penetration of the ink into the paper fibers.
Preferably, however, We secure tone separation by use in the emulsion coating of a compound which after transfer to the receiving paper is capable of giving a blueblack, print-out image. To this end, we use silver iodide either as the catalyst for photopolymerization or in addition to the catalyst. The transfer sheet when silver iodide is employed should contain a sensitizer for silver iodide such as monomethyl-paminophenol sulfate, 0-, mor p-dihydroxybenzene, 4-amino-6-sulfo-a-naphthol or the like. Upon exposure to light, the resist transferred from the coating and containing silver iodide becomes blue-black due to the print-out effect of the transferred silver iodide in contact with the sensitizer.
It is also preferable to enhance the differential between the polymerized and unpolymerized parts of the negative emulsion by adding a small amount of a gelatin hardening substance such as chrome alum to the negative emulsun.
In lieu of the acrylamide mentioned as the vinyl monomer, We may use any other polymerizable vinyl compound whether water or solvent soluble, i.e., in acetone, butyl acetate, alcohol or the like. Illustrative of such monomers are acrylonitrile, N-hydroxyethyl acryl-amide, methacrylic acid, acrylic acid, calcium acrylate, methacrylamide, vinyl acetate, methylmethacrylate, methylacrylate, ethylacrylate, vinyl benzoate, vinyl pyrrolidone,
vinylmethyl, ether, vinyl'butyl ether, vinylisop-ropyl ether, vinyliso-butyl ether, vinylbutyrate, butadiene or mixtures of ethylacrylate with vinyl acetate, acrylonitrile with styrene, butadiene with acryl-onitrile and the like. We have ascertained that any one ofthese monomers when employed in our process is sufliciently hardened in the presence of a photopolymerization catalyst so as to permit transfer of unpolymerized material without transfer of the polymerized material.
Cross-linking agents such as the N,N-methylene'-bisacrylamidepreviously mentioned serve to increase the molecular'weight and hence the physical hardness of the polymer obtained by photopolymerization. The use of the cross-linking agents is, therefore, recommended and for this purpose we utilize an unsaturated compound containing at least two terminal vinyl groups each linked to a carbon atom in a straight chain or in a ring, of which N,l l'-methylene-bis-acrylamide is an example. Other agents which may be employed are those described, for example, by Kropa and Bradley in Vol. 31, No. 12, of Industrial and Engineering Chemistry, 1939. Among such cross-linking agents may be mentioned triallyl cyanurate, divinyl benzene, divinyl ketones and diglycol-diacrylate. Uusually the cross-linking agent is employed in for our purposes.
' jector, 7' distance, 20 seconds).
an amount ranging from 10 to 50 parts of monomer to each part ofthe cross-linking agent.
Many varieties of photopolymerization catalysts may be employed. Thus, we may use radiation-sensitive silver salts as described in the application of Steven Levinos, Serial No. 715,528 filed February 17, 1958, now USP 3,075,907; silver salt emulsions such as described in the application or" Steven'Levinos and Fritz W.H. Mueller,
Serial No. 731,538, now abandoned filed April 28, 1958; mixtures of silver compounds and amphoteric metal oxides as described in the application of Steven Levinos and Fritz W. H. Mueller, Serial No. 765,275 filed October 6, 1958, now USP 3,050,390; and mixtures of silver compounds as described in the application of Steven Levinos,
Serial No. 765,958 filed October 8, 1958, now USP 3,053,- 745; light-sensitive organic peroxides such as light-sensitive di-tertiary butyl peroxide; light-sensitive diazonium compoundssuch as those described in U .8. Patent 2,471,-
959 granted May 31, 1949;. benzoquinone; zinc oxide or titanium dioxide alone or in admixture (1) with salts of amides, or (3) with amino fluorimes, hydroxy' fiuorimes or hydroxy fluorones in which the unsaturated carbon atom linking the two benzo rings is substituted by a phenyl.
mercury, thallium and iron, (2) with organic oxidizable carboxylic acids, salts thereof, aldehydes, phenols and radical and thiazines. Any of these photopolymerization catalysts when used in catalytic amounts, say from about .5 to 25% by weight if the monomer, will be adequate are employed alone or with the, aforesaid promoters,
When zinc oxide or titanium dioxide amounts of the oxides as high as double the weight of the monomer are effective. The zinc oxide or titanium dioxlde systems are disclosed in the applicationof Evans,
Mueller and Levinos filed of even date herewith, entitled 5 Oxides as Catalysts, Serial No. 783,725, now U.S. Patent Photopolymerization of Vinyl Monomers 'With Metal The coating of the negative emulsion containing the monomer and photopolymerization catalyst includes a colloidal carrier in which the monomer and catalyst are dispersed. These carriers, usual in photography, will be gelatin, polyvinyl alcohol, carboxymethyl cellulose, casein or the like. p
The advantages which are inherent in our invention are believed toabe apparent. Thus, instead of the exposure,
developing and transfer steps of the prior art'methods which are based on photographictanning, only an exposure and transfer step are needed. No subsequent or inter-mediate, washing steps are necessary and no conjoint use of silver halide emulsions and processing :solutions are required to directly produce the positive image trans- After drying, the paper is brought in contact with a copy method) to an active light source (500 watt pm: After exposure, the surface of the paper is slightly moistened with ,a fine sprayof water vapor and brought immediately in contact 7O printed matter .and exposed through its support (reflex i with a transfer paper (ordinary paper'with a slightly rough. surface). A rubber roller is applied firmly "over the sandwich and after a few seconds both papers are separated. x On thetransferpaper a brownish colored positive resist is retained, due to the partial transfer of thereduced silver nitrate from.the negative emulsion; Clear, sharp lines and letters are obtained.
Example: II. The following coating formula is used for the negative emulsion; V
A m g 15 10% inert gelating 30 Titanium dioxide g 4 Rose Bengal mgc- 8 V 10% Chrome alum ml 0.5
8% Saponin. cml 2.5
The exposure and transfer techniquegremain the' same as in Example I. Apositive image is obtained onthe transferpaper.
' Example III The following coating formula is usedforthe negative emulsion:
A .m n g 15' 10% inert gelatin g 30' 68% aqueous solution of AgNOg ml 2.5 Silver iodide g .,2.5 10% Chrome alum j ml 0.5 8% Saponin ml 5 2.5;
The exposure technique isthe same as in'Example'L. The paper used as the transfer medium is impregnated with the; following solution:
Resorcinol- 3 Sodium sulfite 8 Water and dried before transferxAfter transfer, accordingto Example I, a positive resist appears 'on the transfer paper,
which quickly assumes a dark blue-black colon. Lines and letters of the printed matter aresharply reproduced. The
transfer process may be repeated 35 times after renewed moistening of the negative emulsion.-
Example IV.
Thefollo'wing solutionsis peparedfand designatedpas W 5:
G." Acrylamide- N.N-methylene-bis-acrylamide 7' Water .120
The following coating is. produced on a-rigid paper support: v
Ml. W5 10 10% gelatin solution 35 Silver chloride emulsion (commercial type) 5 After. drying, the-coating in contact with a printed document wasexposed refiexwise for two minutes with a 500 watt photoflood" lamp placed at a distance of 11" from the coating... Following exposure, the coating was placed against a moisttransfer, sheet. fora period of a minute. The transfer sheet was then stripped off and exposed to a light source to polymerize the; transferred. monomeric coating: Thus, adirectcopyor original is formed on thetransfer sheet and an image oppositewin character to:
the original is formed ,on the exposed material.
Modifications, of the invention Will occur to. persons.
skilled in theart. Thus, in lieu of the particular catalysts mentioned in the examples, we may use any of the catalystsj specified above.
Similarly, in lieu of acrylamide,; resort may be had to any of thetlisted polymerizable vinyl monomers. We, therefore, do not intend to be limited in the patent granted except as necessitated by the appended claims.
We claim:
1. A method of photographic reproduction which comprises exposing reflexwise a translucent base carrying a light-sensitive emulsion containing a polymerizable ethylenically unsaturated monomer and a water-soluble radiation-sensitive silver compound as the photopolymerization catalyst and silver iodide in a hydrophilic colloidal carrier to a subject to effect photopolymerization and hardening of the emulsion only in the non-image areas of the subject, moistening the emulsion with water, rolling the emulsion against a transfer sheet containing a sensitizer for silver iodide to effect physical transfer of the unpolymerized parts of the emulsion to the transfer sheet, separating the transfer sheet from the emulsion and exposing the transfer sheet to light to produce a resist containing a silver iodide print-out image.
2. The process as defined in claim 1 wherein the 6 colloidal carrier contains in addition a cross-linking agent.
3. The process as defined in claim 1 wherein the photopolymerization catalyst is a water-soluble, radiation-sensitive, light-sensitive silver compound promoted by an amphoteric metal oxide.
4. The process as defined in claim 1 wherein the monomer and the photopolymerization catalyst are watersoluble.
5. The process as defined in claim 1 wherein the photopolymerization catalyst is silver nitrate.
References Cited by the Examiner UNITED STATES PATENTS 2,716,059 8/1955 Yutzy et al. 96-28 3,038,800 6/1962 Luckey et al 96-114 3,075,907 1/1963 Levinos 96-35 3,091,528 5/1963 Buskes 96-28 NORMAN G. TORCHIN, Primary Examiner.
Claims (1)
1. A METHOD OF PHOTOGRAPHIC REPRODUCTION WHICH COMPRISES EXPOSING REFLEXWISE A TRANSLUCENT BASE CARRYING A LIGHT-SENSITIVE EMULSION CONTAINING A POLYMERIZABLE ETHYLENICALLY UNSATURATED MONOMER AND A WATER-SOLUBLE RADIATION-SENSITIVE SILVER COMPOUND AS THE PHOTOPOLYMERIZATION CATALYST AND SILVER IODIDE IN A HYDROPHILIC COLLOIDAL CARRIER TO A SUBJECT TO EFFECT PHOTOPOLYMERIZATION AND HARDENING OF THE EMULSION ONLY IN THE NON-IMAGE AREAS OF THE SUBJECT, MOISTENING THE EMULSION WITH WATER, ROLLING THE EMULSION AGAINST A TRASNFER SHEET CONTAINING A SENSITIZER FOR SILVER IODIDE TO EFFECT PHYSICAL TRANSFER OF THE UNPOLYMERIZED PARTS OF THE EMULSION TO THE TRANSFER SHEET, SEPARATING THE TRANSFER SHEET FROM THE EMULSION AND EXPOSING THE TRANSFER SHEET TO LIGHT TO PRODUCE A RESIST CONTAINING A SILVER IODIDE PRINT-OUT IMAGE.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE577894D BE577894A (en) | 1958-04-28 | ||
| BE582912D BE582912A (en) | 1958-04-28 | ||
| GB13009/59A GB866631A (en) | 1958-04-28 | 1959-04-16 | Photopolymerization of compounds containing vinyl groups |
| DEG26940A DE1235741B (en) | 1958-04-28 | 1959-04-27 | Photopolymerizable recording material |
| DEG27674A DE1085423B (en) | 1958-04-28 | 1959-08-07 | Process for the production of photographic transfer images |
| GB29087/59A GB906141A (en) | 1958-04-28 | 1959-08-25 | Photocopying and transfer process involving photopolymerization |
| US230760A US3234021A (en) | 1958-04-28 | 1962-10-15 | Photocopying and transfer process involving photopolymerization |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US73153858A | 1958-04-28 | 1958-04-28 | |
| US78371558A | 1958-12-30 | 1958-12-30 | |
| US230760A US3234021A (en) | 1958-04-28 | 1962-10-15 | Photocopying and transfer process involving photopolymerization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3234021A true US3234021A (en) | 1966-02-08 |
Family
ID=27398118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US230760A Expired - Lifetime US3234021A (en) | 1958-04-28 | 1962-10-15 | Photocopying and transfer process involving photopolymerization |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3234021A (en) |
| BE (1) | BE577894A (en) |
| DE (2) | DE1235741B (en) |
| GB (2) | GB866631A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3650740A (en) * | 1967-06-01 | 1972-03-21 | Agfa Gevaert Nv | Transfer of sheet-like material |
| US4983489A (en) * | 1988-03-25 | 1991-01-08 | Fuji Photo Film Co., Ltd. | Image-forming method using silver halide and polymerizable compound with development inhibitor releaser |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL280914A (en) * | 1961-07-13 | |||
| US3147116A (en) * | 1961-11-28 | 1964-09-01 | Gen Aniline & Film Corp | Printing plates comprising hydrophobic resisto formed by crosslinking photopolymerized hydrophilic monomers with an isocyanate |
| DE1572137B1 (en) * | 1965-06-03 | 1970-09-24 | Du Pont | Photopolymerizable recording material |
| JPS57211146A (en) * | 1981-06-23 | 1982-12-24 | Fuji Photo Film Co Ltd | Photopolymerizable composition |
| DE3666634D1 (en) * | 1985-05-30 | 1989-11-30 | Fuji Photo Film Co Ltd | Light-sensitive material containing microcapsules and image-recording method using the same |
| JPS62151844A (en) * | 1985-12-26 | 1987-07-06 | Fuji Photo Film Co Ltd | Photosensitive material and image forming method |
| DE3688554T2 (en) * | 1985-12-26 | 1993-10-07 | Fuji Photo Film Co Ltd | Silver halide, reducing agent and a photosensitive material containing a polymerizable compound, and recording method therewith. |
| JPH0619550B2 (en) * | 1986-01-10 | 1994-03-16 | 富士写真フイルム株式会社 | Image forming method and photosensitive material |
| JPH0619570B2 (en) * | 1986-02-07 | 1994-03-16 | 富士写真フイルム株式会社 | Photosensitive material |
| JPS62210455A (en) * | 1986-03-11 | 1987-09-16 | Fuji Photo Film Co Ltd | Photosensitive material |
| JPS62209530A (en) * | 1986-03-11 | 1987-09-14 | Fuji Photo Film Co Ltd | Image forming method |
| JPS62209529A (en) * | 1986-03-11 | 1987-09-14 | Fuji Photo Film Co Ltd | Photosensitive material |
| JPS62210448A (en) * | 1986-03-11 | 1987-09-16 | Fuji Photo Film Co Ltd | Photosensitive material |
| JPH0623850B2 (en) * | 1986-05-06 | 1994-03-30 | 富士写真フイルム株式会社 | Dry image forming method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2716059A (en) * | 1952-01-21 | 1955-08-23 | Eastman Kodak Co | Photographic transfer process |
| US3038800A (en) * | 1957-12-19 | 1962-06-12 | Eastman Kodak Co | Photopolymerization of olefinicallyunsaturated monomers by silver halides |
| US3075907A (en) * | 1958-02-17 | 1963-01-29 | Gen Aniline & Film Corp | Photopolymerization of monomers containing vinyl groups by means of silver compoundsas catalysts |
| US3091528A (en) * | 1958-08-19 | 1963-05-28 | Chem Fab L Van Der Grinten N V | Process and light-sensitive sheets for the production of pigment images by transfer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2738319A (en) * | 1952-12-05 | 1956-03-13 | Monsanto Chemicals | Metal mercaptides as photosensitizers in photopolymerization |
-
0
- BE BE577894D patent/BE577894A/xx unknown
-
1959
- 1959-04-16 GB GB13009/59A patent/GB866631A/en not_active Expired
- 1959-04-27 DE DEG26940A patent/DE1235741B/en active Pending
- 1959-08-07 DE DEG27674A patent/DE1085423B/en active Pending
- 1959-08-25 GB GB29087/59A patent/GB906141A/en not_active Expired
-
1962
- 1962-10-15 US US230760A patent/US3234021A/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2716059A (en) * | 1952-01-21 | 1955-08-23 | Eastman Kodak Co | Photographic transfer process |
| US3038800A (en) * | 1957-12-19 | 1962-06-12 | Eastman Kodak Co | Photopolymerization of olefinicallyunsaturated monomers by silver halides |
| US3075907A (en) * | 1958-02-17 | 1963-01-29 | Gen Aniline & Film Corp | Photopolymerization of monomers containing vinyl groups by means of silver compoundsas catalysts |
| US3091528A (en) * | 1958-08-19 | 1963-05-28 | Chem Fab L Van Der Grinten N V | Process and light-sensitive sheets for the production of pigment images by transfer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3650740A (en) * | 1967-06-01 | 1972-03-21 | Agfa Gevaert Nv | Transfer of sheet-like material |
| US4983489A (en) * | 1988-03-25 | 1991-01-08 | Fuji Photo Film Co., Ltd. | Image-forming method using silver halide and polymerizable compound with development inhibitor releaser |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1235741B (en) | 1967-03-02 |
| DE1085423B (en) | 1960-07-14 |
| GB906141A (en) | 1962-09-19 |
| GB866631A (en) | 1961-04-26 |
| BE577894A (en) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3234021A (en) | Photocopying and transfer process involving photopolymerization | |
| US2675313A (en) | Photographic reproduction process | |
| US2716059A (en) | Photographic transfer process | |
| JPH0373849B2 (en) | ||
| US3600166A (en) | Lithographic plate and process of making | |
| JPH0338581B2 (en) | ||
| US3060022A (en) | Image transfer process | |
| US3029145A (en) | Preparation of polymer resist images | |
| US3194661A (en) | Silver image transfer polymerization process | |
| US3138460A (en) | Photopolymerization and stratum transfer process | |
| US3183094A (en) | Method of speed increasing photopolymerizable compositions | |
| US3244519A (en) | Photopolymerization in stratum transfer effected with colorless water insoluble colloidal organic compound | |
| US3388995A (en) | Photopolymer offset printing plates | |
| US3568597A (en) | Lithographic printing plate and process | |
| US3625687A (en) | Process for making negative working offset masters containing thin gelatin relief images | |
| US3345164A (en) | Silver image transfer polymerization process | |
| US3174859A (en) | Process for obtaining multiple photographic positive images by diffusiontransfer | |
| US4221858A (en) | Process for preparing a planographic printing plate | |
| US3561961A (en) | Photosensitive lithographic printing master and process for preparation of a lithographic plate | |
| US3790378A (en) | Process for the formation of polymer images | |
| US3385701A (en) | Lithographic offset master and method | |
| US3620734A (en) | Positive-working photopolymerization process | |
| US3236644A (en) | Process for silver development of photopolymerization prints and print forming element therefor | |
| US3201237A (en) | Photographic polymeric images and process for producing same | |
| US3782944A (en) | Process for the polymerization of vinyl compound |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: EASTMAN KODAK COMPANY, 343 STATE ST. ROCHESTER, N. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:GAF CORPORATION;REEL/FRAME:004049/0808 Effective date: 19820910 |