US2606117A - Diazotype photoprinting materials - Google Patents
Diazotype photoprinting materials Download PDFInfo
- Publication number
- US2606117A US2606117A US752835A US75283547A US2606117A US 2606117 A US2606117 A US 2606117A US 752835 A US752835 A US 752835A US 75283547 A US75283547 A US 75283547A US 2606117 A US2606117 A US 2606117A
- Authority
- US
- United States
- Prior art keywords
- light
- diazotype
- layer
- composition
- carrier layer
- 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
- 239000000463 material Substances 0.000 title claims description 38
- 239000000049 pigment Substances 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 20
- 239000012255 powdered metal Substances 0.000 claims description 8
- -1 DIAZO Chemical class 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 32
- 229920002301 cellulose acetate Polymers 0.000 description 10
- 239000004922 lacquer Substances 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000002845 discoloration Methods 0.000 description 6
- 239000000123 paper Substances 0.000 description 6
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 150000008049 diazo compounds Chemical class 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 4
- 231100000202 sensitizing Toxicity 0.000 description 4
- 230000001235 sensitizing effect Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000004383 yellowing Methods 0.000 description 3
- LAXPFHMCFLHGKK-UHFFFAOYSA-N 4-diazo-n,n-dimethylcyclohexa-1,5-dien-1-amine Chemical compound CN(C)C1=CCC(=[N+]=[N-])C=C1 LAXPFHMCFLHGKK-UHFFFAOYSA-N 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000011111 cardboard Substances 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 239000013068 control sample Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- QCDYQQDYXPDABM-UHFFFAOYSA-N phloroglucinol Chemical compound OC1=CC(O)=CC(O)=C1 QCDYQQDYXPDABM-UHFFFAOYSA-N 0.000 description 2
- 229960001553 phloroglucinol Drugs 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- MFYSUUPKMDJYPF-UHFFFAOYSA-N 2-[(4-methyl-2-nitrophenyl)diazenyl]-3-oxo-n-phenylbutanamide Chemical compound C=1C=CC=CC=1NC(=O)C(C(=O)C)N=NC1=CC=C(C)C=C1[N+]([O-])=O MFYSUUPKMDJYPF-UHFFFAOYSA-N 0.000 description 1
- 229910000906 Bronze Inorganic materials 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
- NEAPKZHDYMQZCB-UHFFFAOYSA-N N-[2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]ethyl]-2-oxo-3H-1,3-benzoxazole-6-carboxamide Chemical compound C1CN(CCN1CCNC(=O)C2=CC3=C(C=C2)NC(=O)O3)C4=CN=C(N=C4)NC5CC6=CC=CC=C6C5 NEAPKZHDYMQZCB-UHFFFAOYSA-N 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 238000006149 azo coupling reaction Methods 0.000 description 1
- 239000000987 azo dye Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- PXOZAFXVEWKXED-UHFFFAOYSA-N chembl1590721 Chemical compound C1=CC(NC(=O)C)=CC=C1N=NC1=CC(C)=CC=C1O PXOZAFXVEWKXED-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/52—Compositions containing diazo compounds as photosensitive substances
- G03C1/61—Compositions containing diazo compounds as photosensitive substances with non-macromolecular additives
Definitions
- This invention relates to improvements in diazotype photoprinting materials and in the process of making the same.
- Photoprinting materials sensitized with diazotype compositions i. e. compositions containing light-sensitive diazo compounds which are selfcoupling, or which are used with a suitable coupling component, yielding latent images on exposure to light of locally varied intensity, which can be developed [e. g. with alkaline vapors] to form direct positives) have adapted themselves to many uses because of their versatility and ease of handling.
- diazotype photoprinting material yielding copies which are durable on exposure to rain, moisture or other adverse Weather conditions.
- photo-sensitive printing materials which are adapted to yield highly decorative color effects, having, for example, a background of any desired color, and an image of a different color.
- a carrier layer is provided for the light-sensitive diazo composition, containing a lustrous powdered metal pigment, such as aluminum, bronze or copper bronzing powder, tinted or natural, incorporated in the layer.
- the metallic pigment is 2 preferably incorporated in a translucent filmforming vehicle, applied as a coating to a suitable supporting base, such as paper, cardboard, cloth or metal, or may be incorporated in a translucent or transparent plastic which may be cast, molded or drawn to form a carrier layer as such, or it can be laminated or otherwise mounted on a suitable supporting base.
- the vehicle employed for the metallic pigment can be made of waterresistant or waterproof film-forming material, or of a plastic, such as a lacquer or film or cellulose acetate, cellulose acetobutyrate, ethyl cellulose, or of natural or artificial resins, whereby the prints obtained are adapted to be displayed outdoors, and to withstand the effects of adverse weather conditions, particularly rain and moisture, and are likewise characterized by excellent durability for handling.
- a plastic such as a lacquer or film or cellulose acetate, cellulose acetobutyrate, ethyl cellulose, or of natural or artificial resins
- the aforesaid carrier layer or coating containing the metallic pigment is sensitized with a light-sensitive diazo composition in accordance with any of the methods known to the art.
- the layer is advantageously treated on its exposed surface with a solution of a lightsensitive diazo compound, such as p-diazo-N,N- dimethyl aniline, or p-diazo-N,N-diethyl-m-phenetidine, together with a suitable coupling component such-as resorcinol or phloroglucin, together with suitable stabilizers, in a solvent adapted to impregnate the aforesaid carrier layer.
- a lightsensitive diazo compound such as p-diazo-N,N- dimethyl aniline, or p-diazo-N,N-diethyl-m-phenetidine
- the solvent is then allowed to evaporate, leaving the surface of the carrier layer or coating impregnated and sensitized with the diazotype composition.
- the diazotype composition can be incorporated in the film-forming or plastic material of the carrier layer together with the metallic pigment.
- a dyestuff substantive to the vehicle of the carrier layer and preferably fast to light, can be used to color the carrier layer at any convenient stage in its formation or subsequent processing.
- the metallic pigment contained in the carrier layer protects the decomposition products of the diazotype sensi tizing composition from the effects of light, and also masks-such discoloration as may occur at the surface of the print.
- the high reflectivity of the metallic pigments employed in the carrierof my-photopri'nting material yields copies having ahighly decorative appearance, particularly pleasing to the eye.
- Artistic effects canbe produced by coloring the vehicle of the carrier layer with appropriate dyestuffs, and employing a sensitizing composition which yields a contrasting'color, produced, for example, in varying degrees of saturation, so that it combineswith the-background coloration to yield a picture of variable hue.
- Example I 5 g. of aluminum bronzing powder were dispersed in 100 cc. of a cellulose acetate lacquer (in which the cellulose acetate wa 52-55% acetylated, and suitably plasticized), and the resulting composition. was applied to form a coating layer on clay-coated paper stock. After drying, the resulting, coating layer was sensitized by treatment with a solution containing p-diazo- N,N-dimethyl aniline and resorcinol, togethertial discoloration upon exposure. to ultra-violet. light for three or six hours, while a control sample. prepared in the same manner. but without in.-
- ExampleZ 2.5" g. of aluminum bronzing powder were dispersed in cellulose acetate lacquer of the same composition as that described in Example 1, and the resulting mixture similarly applied to paper stock as a support.
- the resulting layer was sensitized in the. same. manner as in the preceding example with arsensitizingsolution containing p-diazo N;N-diethyl m phenetidine and phloroglucin, together with a suitable stabilizer in a solvent of the type hereinbefore disclosed.
- Example 3 the bronze powder in the cellulose acetate lacquer showedno substantial yellowing upon prolonged exposure to ultra-violet light.
- Example 4 Samples of cellulose acetate lacquer of the type employed in the preceding examples were pre pared containing respectively 5 g. and 2.5 g. of aluminum powder, and also containing no metallic pig-ment, and these samples were applied to a paper base to form a carrier layer whichv was sensitized with the diazotype composition of Example l.
- the print obtained on the lacquer coating containing no aluminum pigment had excessively contrasting highlight regions, choked-up shadows and high gloss; the print obtained on lacquer containing, 2.5% aluminum powder had less contrast inthe highlights, more open shadows and less gloss, while the print obtained on the lacquer containing 5%.
- aluminum powder had low contrast, extended latitude and open shadows, and was of'relatively fiat appearance.
- Example 5 7 Example 6 V; g. of a light-fast yellow cellulose acetate dyestuff' ('e. g. Celliton Fast Yellow G Powder) was substituted in the procedure of Example 5 for the blue-green-dyestuif'employed therein and the resulting coating. was sensitized with the diazotype solution of Example 1'. The resulting photoprinting material yielded copies having a yellow-brown image on ayellow or. gold metallic background of exceedingly pleasing appearance.
- a light-fast yellow cellulose acetate dyestuff' 'e. g. Celliton Fast Yellow G Powder
- Example?- The' procedures of- Examples-1 and 3 were'repeated, except that a sheet of cellulose acetatefilm having athickness of 0.005 inchwas employed as a suDportingbase-instcad of paper. Copies obtained with they-resultant photoprinting material possessed the same superior properties and. advantages as described the foregoing examples, showing-no substantial discoloration on the prolonged exposure of ultra-violet light, and yielding images having softened highlights and open shadows.
- supporting base materials other than paper or cellulose acetate film can be used including, for example, cloth, other plastics, cardboard or metal.
- other water-resistant vehicles may replace cellulose acetate in the carrier layer, for example, other cellulose esters or ethers, or natural or artificial water-repellent resins.
- water-soluble or hydrophilic colloid vehicles can replace the aforesaid waterproof materials as the carrier layer vehicle.
- various dyestuffs can be employed which are substantive to the particular carrier vehicle used.
- the proportion of metallic pigment employed in the coating composition is subject to considerable variation, depending upon the result desired. In general when aluminum or bronze powder is used, a proportion of the order shown in the examples has been found satisfactory.
- Diazotype photoprinting material comprising a light-sensitive layer having a light-sensitive diazo composition and a lustrous powdered metal pigment co-mingled in said layer.
- Diazotype photoprinting material comprising a light-sensitive layer of translucent filmforming material containing a light-sensitive diazo composition and a lustrous powdered metal pigment co-mingled in said layer.
- Diazotype photoprinting material comprising a layer of film-forming material containing a lustrous powdered metal pigment, and a lightsensitive dia zo composition impregnating at least the surface portion of said layer.
- Diazotype photopririting material comprising a supporting base, a coating of water-resist ant lacquer containing a lustrous powdered metal pigment in a translucent film-forming vehicle, and a light-sensitive diazo composition impregnating at least the surface portion of said coating.
- Diazotype photoprinting material comprising a light-sensitive layer of translucent filmforming material containing a light-sensitive diazotype sensitizing composition including an azo coupling component and a light-sensitive diazo compound stabilized against coupling prior to development, and a lustrous powdered metal pigment incorporated in said layer.
- Diazotype photoprinting material as defined in claim 2, wherein said translucent film-forming material is tinted with a light-fast dyestuff.
- Developed diazotype photoprinting material comprising a layer of translucent film-forming material containing a lustrous powdered metal pigment, an azo dye image, residual azo couplin component, and light-decomposed diazo compound residues in the metal pigment-containing portion of said layer.
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US752835A US2606117A (en) | 1947-06-05 | 1947-06-05 | Diazotype photoprinting materials |
GB7779/48A GB643063A (en) | 1947-06-05 | 1948-03-15 | Diazotype photoprinting materials |
FR966248D FR966248A (en, 2012) | 1947-06-05 | 1948-05-18 | |
NL140615A NL69150C (en, 2012) | 1947-06-05 | 1948-05-25 | |
DEP29331D DE838689C (de) | 1947-06-05 | 1949-01-01 | Diazotypie-Kopiermaterial und Verfahren zu dessen Herstellung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US752835A US2606117A (en) | 1947-06-05 | 1947-06-05 | Diazotype photoprinting materials |
Publications (1)
Publication Number | Publication Date |
---|---|
US2606117A true US2606117A (en) | 1952-08-05 |
Family
ID=25028059
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US752835A Expired - Lifetime US2606117A (en) | 1947-06-05 | 1947-06-05 | Diazotype photoprinting materials |
Country Status (5)
Country | Link |
---|---|
US (1) | US2606117A (en, 2012) |
DE (1) | DE838689C (en, 2012) |
FR (1) | FR966248A (en, 2012) |
GB (1) | GB643063A (en, 2012) |
NL (1) | NL69150C (en, 2012) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2873207A (en) * | 1955-02-21 | 1959-02-10 | Dietzgen Co Eugene | Diazotype reproduction material and method |
US3081166A (en) * | 1957-02-05 | 1963-03-12 | Grinten Chem L V D | Process for making positive diazotype copies by exposure to light of a mercury vaporlamp and light-sensitive material suited for this process |
US3980478A (en) * | 1974-07-05 | 1976-09-14 | Eastman Kodak Company | Method of making an ultraviolet light image recording using a visible-light reflective intermediate element |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE955928C (de) * | 1954-06-18 | 1957-01-10 | Kalle & Co Ag | Verfahren zur photomechanischen Herstellung von Metalldruckformen unter Verwendung von Diazosulfonaten als Lichtempfindliche Substanzen |
GB818911A (en) * | 1954-09-15 | 1959-08-26 | Ozalid Co Ltd | Improvements in or relating to diazotype materials |
DE1083650B (de) * | 1955-12-15 | 1960-06-15 | Ozalid Co Ltd | Diazotypie-Kopiermaterial und Verfahren zu seiner Herstellung |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US640137A (en) * | 1899-03-20 | 1899-12-26 | Henry Kuhn | Sensitized metallic-coated photographic paper. |
US694227A (en) * | 1901-05-17 | 1902-02-25 | Metalline Platten Ges M B H | Process of bronzing photographic plates. |
GB190221537A (en) * | 1902-10-03 | 1902-11-13 | Charles Archer | Improvements in Surfaces for Receiving Photographic Prints |
US731831A (en) * | 1902-03-11 | 1903-06-23 | Firm Of Metalline Platten Ges M B H | Bronze-coated plate. |
US1651136A (en) * | 1926-12-20 | 1927-11-29 | Oxford Varnish Corp | Method of producing wood grain surfaces |
US1762033A (en) * | 1927-08-22 | 1930-06-03 | Halle & Co Ag | Process of preparing pictures to be produced by tanning action |
GB401898A (en) * | 1931-12-09 | 1933-11-23 | Kalle & Co Ag | Improvements in the preparation of photographic tanned colloid images |
GB402737A (en) * | 1932-03-04 | 1933-12-07 | Kalle & Co Ag | Manufacture of negative copies |
US1961348A (en) * | 1932-03-01 | 1934-06-05 | Goedtler Louis | Manufacture of photographic printing fabric |
US2018657A (en) * | 1930-06-09 | 1935-10-29 | Photo Cast Inc | Photographic developer and method of preparing the same |
US2043309A (en) * | 1934-12-31 | 1936-06-09 | Stone Melvin | Metallic printing process |
US2121013A (en) * | 1935-11-07 | 1938-06-21 | Celluloid Corp | Article and material containing organic derivatives of cellulose |
US2216736A (en) * | 1938-09-27 | 1940-10-08 | Du Pont | Photographic film |
GB536714A (en) * | 1940-04-15 | 1941-05-23 | Le Film Ozaphane Sa | Improvements in or relating to light-sensitive photographic films |
-
1947
- 1947-06-05 US US752835A patent/US2606117A/en not_active Expired - Lifetime
-
1948
- 1948-03-15 GB GB7779/48A patent/GB643063A/en not_active Expired
- 1948-05-18 FR FR966248D patent/FR966248A/fr not_active Expired
- 1948-05-25 NL NL140615A patent/NL69150C/xx active
-
1949
- 1949-01-01 DE DEP29331D patent/DE838689C/de not_active Expired
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US640137A (en) * | 1899-03-20 | 1899-12-26 | Henry Kuhn | Sensitized metallic-coated photographic paper. |
US694227A (en) * | 1901-05-17 | 1902-02-25 | Metalline Platten Ges M B H | Process of bronzing photographic plates. |
US731831A (en) * | 1902-03-11 | 1903-06-23 | Firm Of Metalline Platten Ges M B H | Bronze-coated plate. |
GB190221537A (en) * | 1902-10-03 | 1902-11-13 | Charles Archer | Improvements in Surfaces for Receiving Photographic Prints |
US1651136A (en) * | 1926-12-20 | 1927-11-29 | Oxford Varnish Corp | Method of producing wood grain surfaces |
US1762033A (en) * | 1927-08-22 | 1930-06-03 | Halle & Co Ag | Process of preparing pictures to be produced by tanning action |
US2018657A (en) * | 1930-06-09 | 1935-10-29 | Photo Cast Inc | Photographic developer and method of preparing the same |
GB401898A (en) * | 1931-12-09 | 1933-11-23 | Kalle & Co Ag | Improvements in the preparation of photographic tanned colloid images |
US2100063A (en) * | 1931-12-09 | 1937-11-23 | Kaile & Co Ag | Process for the production of tanned pictures |
US1961348A (en) * | 1932-03-01 | 1934-06-05 | Goedtler Louis | Manufacture of photographic printing fabric |
GB402737A (en) * | 1932-03-04 | 1933-12-07 | Kalle & Co Ag | Manufacture of negative copies |
US2043309A (en) * | 1934-12-31 | 1936-06-09 | Stone Melvin | Metallic printing process |
US2121013A (en) * | 1935-11-07 | 1938-06-21 | Celluloid Corp | Article and material containing organic derivatives of cellulose |
US2216736A (en) * | 1938-09-27 | 1940-10-08 | Du Pont | Photographic film |
GB536714A (en) * | 1940-04-15 | 1941-05-23 | Le Film Ozaphane Sa | Improvements in or relating to light-sensitive photographic films |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2873207A (en) * | 1955-02-21 | 1959-02-10 | Dietzgen Co Eugene | Diazotype reproduction material and method |
US3081166A (en) * | 1957-02-05 | 1963-03-12 | Grinten Chem L V D | Process for making positive diazotype copies by exposure to light of a mercury vaporlamp and light-sensitive material suited for this process |
US3980478A (en) * | 1974-07-05 | 1976-09-14 | Eastman Kodak Company | Method of making an ultraviolet light image recording using a visible-light reflective intermediate element |
Also Published As
Publication number | Publication date |
---|---|
DE838689C (de) | 1952-05-12 |
FR966248A (en, 2012) | 1950-10-04 |
GB643063A (en) | 1950-09-15 |
NL69150C (en, 2012) | 1951-07-10 |
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