DE1268966B - Photosensitive layer - Google Patents
Photosensitive layerInfo
- Publication number
- DE1268966B DE1268966B DEP1268A DE1268966A DE1268966B DE 1268966 B DE1268966 B DE 1268966B DE P1268 A DEP1268 A DE P1268A DE 1268966 A DE1268966 A DE 1268966A DE 1268966 B DE1268966 B DE 1268966B
- Authority
- DE
- Germany
- Prior art keywords
- bis
- photosensitive layer
- color former
- derivative
- leukauramine
- 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.)
- Pending
Links
- HJUGFYREWKUQJT-UHFFFAOYSA-N tetrabromomethane Chemical compound BrC(Br)(Br)Br HJUGFYREWKUQJT-UHFFFAOYSA-N 0.000 claims description 20
- -1 triphenylmethane lactone Chemical class 0.000 claims description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- 125000000636 p-nitrophenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)[N+]([O-])=O 0.000 claims description 3
- FBEHFRAORPEGFH-UHFFFAOYSA-N Allyxycarb Chemical compound CNC(=O)OC1=CC(C)=C(N(CC=C)CC=C)C(C)=C1 FBEHFRAORPEGFH-UHFFFAOYSA-N 0.000 claims 1
- 125000001834 xanthenyl group Chemical class C1=CC=CC=2OC3=CC=CC=C3C(C12)* 0.000 claims 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- YLZSIUVOIFJGQZ-UHFFFAOYSA-N bis[4-(dimethylamino)phenyl]methanol Chemical compound C1=CC(N(C)C)=CC=C1C(O)C1=CC=C(N(C)C)C=C1 YLZSIUVOIFJGQZ-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- LIZLYZVAYZQVPG-UHFFFAOYSA-N (3-bromo-2-fluorophenyl)methanol Chemical compound OCC1=CC=CC(Br)=C1F LIZLYZVAYZQVPG-UHFFFAOYSA-N 0.000 description 2
- PVTXJGJDOHYFOX-UHFFFAOYSA-N 2h-1,4-benzoxazine Chemical compound C1=CC=C2N=CCOC2=C1 PVTXJGJDOHYFOX-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- IPAJDLMMTVZVPP-UHFFFAOYSA-N Crystal violet lactone Chemical compound C1=CC(N(C)C)=CC=C1C1(C=2C=CC(=CC=2)N(C)C)C2=CC=C(N(C)C)C=C2C(=O)O1 IPAJDLMMTVZVPP-UHFFFAOYSA-N 0.000 description 2
- 125000001664 diethylamino group Chemical group [H]C([H])([H])C([H])([H])N(*)C([H])([H])C([H])([H])[H] 0.000 description 2
- 150000004683 dihydrates Chemical class 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- QTWZICCBKBYHDM-UHFFFAOYSA-N leucomethylene blue Chemical class C1=C(N(C)C)C=C2SC3=CC(N(C)C)=CC=C3NC2=C1 QTWZICCBKBYHDM-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- ROSDSFDQCJNGOL-UHFFFAOYSA-N protonated dimethyl amine Natural products CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- WJFKNYWRSNBZNX-UHFFFAOYSA-N 10H-phenothiazine Chemical compound C1=CC=C2NC3=CC=CC=C3SC2=C1 WJFKNYWRSNBZNX-UHFFFAOYSA-N 0.000 description 1
- ABJAMKKUHBSXDS-UHFFFAOYSA-N 3,3-bis(6-amino-1,4-dimethylcyclohexa-2,4-dien-1-yl)-2-benzofuran-1-one Chemical compound C1=CC(C)=CC(N)C1(C)C1(C2(C)C(C=C(C)C=C2)N)C2=CC=CC=C2C(=O)O1 ABJAMKKUHBSXDS-UHFFFAOYSA-N 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
- 125000000217 alkyl group Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 229910052736 halogen Chemical class 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- QDLAGTHXVHQKRE-UHFFFAOYSA-N lichenxanthone Natural products COC1=CC(O)=C2C(=O)C3=C(C)C=C(OC)C=C3OC2=C1 QDLAGTHXVHQKRE-UHFFFAOYSA-N 0.000 description 1
- 229940107698 malachite green Drugs 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000003261 o-tolyl group Chemical group [H]C1=C([H])C(*)=C(C([H])=C1[H])C([H])([H])[H] 0.000 description 1
- 125000001037 p-tolyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])[H] 0.000 description 1
- 229950000688 phenothiazine Drugs 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010792 warming Methods 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
- G03C1/72—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705
- G03C1/73—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705 containing organic compounds
- G03C1/732—Leuco dyes
-
- 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
- G03C1/675—Compositions containing polyhalogenated compounds as photosensitive substances
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
Description
BUNDESREPUBLIK DEUTSCHLANDFEDERAL REPUBLIC OF GERMANY
DEUTSCHESGERMAN
PATENTAMTPATENT OFFICE
Int. Cl.:Int. Cl .:
G03cG03c
Deutsche KL: 57 b- 1fr- German KL: 57 b- 1fr-
Nummer: 1 268 966Number: 1 268 966
Aktenzeichen: P 12 68 966.6-51File number: P 12 68 966.6-51
Anmeldetag: 23. Januar 1962Filing date: January 23, 1962
Auslegetag: 22. Mai 1968Open date: May 22, 1968
Die Erfindung betrifft eine lichtempfindliche Schicht aus Kohlenstofftetrabromid und einem Farbbildner.The invention relates to a photosensitive layer made of carbon tetrabromide and a color former.
Es ist vorgeschlagen worden, lichtempfindliche Schichten aus Kohlenstofftetrabromid und einem farbbildenden Amin in Auskopierschichten zu verwenden (deutsche Auslegeschriften 1 134 587 und 1 135 755). Es ist bekannt, lichtempfindliche Schichten in photographischen Verfahren zu verwenden.It has been proposed to use photosensitive layers made of carbon tetrabromide and a to use color-forming amine in copy-out layers (German Auslegeschriften 1 134 587 and 1 135 755). It is known to have photosensitive layers to be used in photographic processes.
Nachteilig aü diesen bekannten lichtempfindlichen Schichten ist, daß nach ihrer Belichtung eine meist umständliche und zeitraubende Naßfixierung erforderlich ist.A disadvantage of these known photosensitive layers is that after their exposure one usually cumbersome and time-consuming wet fixation is required.
Aufgabe der Erfindung ist, eine für sichtbares Licht empfindliche Schicht anzugeben, bei der die Fixierung durch eine einfache Wärmebehandlung erfolgen kann.The object of the invention is to provide a layer sensitive to visible light in which the Fixation can be done by a simple heat treatment.
Der Gegenstand der Erfindung geht von einer lichtempfindlichen Schicht aus Kohlenstofftetrabromid und einem Farbbildner aus und ist dadurch gekennzeichnet, daß sie als Farbbildner ein Triphenylmethanlacton, 2-(p-Nitrophenyl)-4,4-bis-(p-dimethylaminophenyl) - 7 - dimethylamine - 3,1,4 - benzoxazin, ein Leukomethylenblauderivat, ein Leukauraminderivat, ein Spiroxanthenderivat oder den Dihydriläther von Michlers Hydrol enthält.The subject of the invention is based on a photosensitive layer made of carbon tetrabromide and a color former and is characterized in that it is a triphenylmethane lactone as the color former, 2- (p-nitrophenyl) -4,4-bis- (p-dimethylaminophenyl) - 7 - dimethylamine - 3,1,4 - benzoxazine, a leucomethylene blue derivative, a leukauramine derivative, a spiroxanthene derivative or the dihydrate ether of Michler's Hydrol.
Geeignete Farbbildner für die lichtempfindliche Schicht sind:Suitable color formers for the photosensitive layer are:
1. Triphenylmethanlactone, z.B. 3,3-Bis-(p-dimethylaminophenyl) - 6 - dimethylaminophthalid (Kristallviolettlacton), 3,3-Bis-(p-dimethylaminophenyl)-phthalid (Malachitgrünlacton) und dessen niedere Alkyl- und Halogenderivate.1. Triphenylmethane lactones, e.g., 3,3-bis (p-dimethylaminophenyl) - 6 - dimethylaminophthalide (Crystal violet lactone), 3,3-bis (p-dimethylaminophenyl) phthalide (malachite green lactone) and its lower alkyl and halogen derivatives.
2. 2 - (p - Nitrophenyl) - 4,4 - bis - (p - dimethylaminophenyl) - 7 - dimethylamine - 3,1,4 - benzoxazin mit der Strukturformel2.2 - (p - nitrophenyl) - 4,4 - bis - (p - dimethylaminophenyl) - 7 - dimethylamine - 3,1,4 - benzoxazine with the structural formula
(CH3J2N(CH 3 J 2 N
N(CH3)2 N (CH 3 ) 2
3. Leukomethylenblauderivale, z. B. 10 - Benzoyl-3,7-bis-(diniethylamino)-phenothiazin (Benzoyl-Lichtempfindliche Schicht3. Leucomethylene blue rivals, e.g. B. 10 - Benzoyl-3,7-bis (diniethylamino) phenothiazine (Benzoyl photosensitive layer
Anmelder:Applicant:
The National Cash Register Company,The National Cash Register Company,
Dayton, Ohio (V. St. A.)Dayton, Ohio (V. St. A.)
Vertreter:Representative:
Dr. A. Stappert, Rechtsanwalt,Dr. A. Stappert, lawyer,
4000 Düsseldorf-Nord, Feldstr. 804000 Düsseldorf-North, Feldstr. 80
Beanspruchte Priorität:Claimed priority:
V. St. v. Amerika vom 25. Januar 1961 (84749) V. St. v. America january 25, 1961 (84749)
leukomethylenblau) sowie Halogen- und Nitroderivate dieser Verbindung, Naphthoylleukomethylenblauunddie 10-n-Octanoyl-, 10-(4'-Anisoyl)-sowie 10-Cinnamoyl-Analogen von Benzoylleukomethylenblau. leucomethylene blue) and halogen and nitro derivatives of this compound, naphthoyl leucomethylene blue and the 10-n-octanoyl, 10- (4'- anisoyl) and 10-cinnamoyl analogues of benzoyl leucomethylene blue.
4. Leukauraminderivate, z. B. N-Halogenphenyl- und N-(Alkylhalogenphenyl)-leukauraminverbindungen mit der Strukturformel4. Leukauramine derivatives, e.g. B. N-halophenyl and N- (alkylhalophenyl) leukauramine compounds having the structural formula
in der R gleich einer Amino-, Anilino-, Cyclohexyl-, o-Tolyl-, p-Tolyl- und S-Chlor^-methylphenylgruppe ist und worin R1- gleich einer —CH3- oder einer —C2H5-Gruppe ist.in which R is an amino, anilino, cyclohexyl, o-tolyl, p-tolyl and S-chloro ^ -methylphenyl group and in which R 1 - is a —CH 3 - or a —C 2 H 5 - Group is.
5. Spiroxanthenderivate, z. B. Acetylderivate von 3\6'-Bis-(diäthylamino)-spiro-[2,3-dihydrobenz-5. Spiroxanthene derivatives, e.g. B. Acetyl derivatives of 3 \ 6'-bis (diethylamino) -spiro- [2,3-dihydrobenz-
109 550 417109 550 417
isosulfonazoi - 3,9' - xanthen] formelisosulfonazoi - 3,9 '- xanthene] formula
mit der Struktur-with the structural
N(C2H5),N (C 2 H 5 ),
^N-COCH1 ^ N-COCH 1
/X/ X
2-(N- Phenyl) - 3',6' - bis - (diäthylamino) - spiro-[1,2,3 H-phthalimide - 3,9^-xanthen] mit der Strukturformel2- (N-phenyl) - 3 ', 6' - bis - (diethylamino) - spiro- [1,2,3 H-phthalimide - 3,9 ^ -xanthene] with the Structural formula
Aufzeichnung erhalten, die durch Erwärmen des Aufzeichnungsmaterials auf eine zwischen Zimmertemperatur und 100° C Hegende Temperatur, wobei das bei der Belichtung nicht verbrauchte Kohlenstofftetrabromid entfernt wird, fixiert wird. Die jeweils zu verwendende Temperatur hängt von der Kombination des Farbbildners, dem verwendeten Bindemittel und der jeweiligen Wärmequelle ab. Die Zeitdauer der Wärmebehandlung schrankt ebenfalls starkRecord obtained by heating the recording material to between room temperature and 100 ° C Hehende temperature, the carbon tetrabromide not consumed in the exposure is removed, is fixed. The particular temperature to be used depends on the combination the color former, the binder used and the respective heat source. The length of time the heat treatment is also severely limited
ίο je nach den in der lichtempfindlichen Schicht verwendeten Komponenten. Im allgemeinen beträgt die Behandlungsdauer innerhalb des genannten Temperaturbereiches nur wenige Sekunden. Die lichtempfindliche Schicht ist normalerweise gelb. Diese Farbe behält sie auch nach der Belichtung in den nicht belichteten Bildteilen bei. Bei Erwärmung des Aufzeichnungsmaterials schlägt die gelbe Farbe jedoch im allgemeinen in eine hellgrüne Farbe um. Diese Farbänderung des Untergrundes ist wahrscheinlich auf eine Verminderung des Kohlenstofftetrabromids zurückzuführen.ίο depending on those used in the photosensitive layer Components. In general, the treatment time is within the stated temperature range just a few seconds. The photosensitive layer is usually yellow. It retains this color even after exposure in the unexposed parts of the image. When the recording material is heated, the yellow color appears however, generally turns to a light green color. This change in color of the subsurface is likely attributed to a decrease in carbon tetrabromide.
(C2Hs)2N —{{, 5'Y "" Y4y^f- N(C2H5), Enthält die lichtempfindliche Schicht eine Mischung(C 2 Hs) 2 N - {{, 5 'Y "" Y 4y ^ f- N (C 2 H 5 ), The photosensitive layer contains a mixture
aus Kohlenstofftetrabromid und dem Dihydriläther von Michlers Hydrol, so wird durch die Erwärmung eine Farbintensivierung des Bildes herbeigeführt. Durch die Erfindung wird eine für sichtbares Licht empfindliche Schicht erhalten, die nach der Belichtung keiner Naßfixierung mehr bedarf. Mit der lichtempfindlichen Schicht ist es weiterhin auch möglich, Halbtöne eines Originals wiederzugeben.from carbon tetrabromide and the dihydric ether of Michler's Hydrol, so becomes by the warming brought about a color intensification of the image. The invention makes one for visible light sensitive layer obtained which no longer requires wet fixation after exposure. With the photosensitive Layer it is still possible to reproduce halftones of an original.
Ein Blatt Papier wird im Dunkeln mit 1 g Kristall-A sheet of paper is placed in the dark with 1 g of crystal
und 2-(N-p-NitrophenyI), 3',6'-Bis-(diäthyIami- violettlacton der Strukturformel no)-spiro [1,2,3 H-phthafimidin-3,9'-xanthen] mit 35 der Strukturformeland 2- (N-p-nitrophenyI), 3 ', 6'-bis (diethyIami- violet lactone of the structural formula no) -spiro [1,2,3 H-phthafimidine-3,9'-xanthene] with 35 of the structural formula
(C2Hs)2N(C 2 Hs) 2 N
N(C2H5),N (C 2 H 5 ),
(CHa)2N-(Ai /N-N(CH3),(CHa) 2 N- (Ai / NN (CH 3 ),
VV/VVV / V
NO,NO,
N(CH3).N (CH 3 ).
6. Dihydriläther von Michlers Hydrol. z. B. 4,4\4",4"' - (Oxymethylidyni-fetrakis - (RN - dimethylanilin). 6. Dihydrate ether from Michler's Hydrol. z. B. 4,4 \ 4 ", 4" '- (Oxymethylidyni-fetrakis - (RN - dimethylaniline).
Gemäß einer Ausgestattung der Erfindung enthält die Schicht als Farbbildner 3,3-Bis-(p-dimethylaminophenyl)-6-dimethylaminophthalid oder N-(2,5-Dichlorphenylj-leukauramin. „According to one feature of the invention, the layer contains 3,3-bis- (p-dimethylaminophenyl) -6-dimethylaminophthalide as a color former or N- (2,5-dichlorophenylj-leukauramine. "
Auf einem üblichen Schichtträger wird im Dunkeln eine Mischung aus einem annähernd farblosen Farbbildner, beispielsweise Kristallviolettlacton und Kohlenstofftetrabromid in Form einer Lösung in Toluol oder einem anderen Lösungsmittel aufgebracht. Durch Verdampfen des Lösungsmittels wird anschließend das Aufzeichnungsmaterial getrocknet. Das auf diese Weise hergestellte Aufzeichnungsmaterial ist gegenüber sichtbarem Licht empfindlich. Durch bildmäßige Bestrahlung mit sichtbarem Licht wird eine farbige und 5 g Kohlenstofftetrabromid in 180 ecm Toluol beschichtet.A mixture of an almost colorless color former, for example, crystal violet lactone and carbon tetrabromide applied in the form of a solution in toluene or another solvent. By After evaporation of the solvent, the recording material is dried. That on this Well-prepared recording material is sensitive to visible light. By pictorial Irradiation with visible light is a colored and 5 g of carbon tetrabromide in 180 ecm of toluene coated.
Das so erhaltene Aufzeichnungsmaterial wird dannThe recording material thus obtained is then
durch Verdampfen des Lösungsmittels getrocknet.dried by evaporation of the solvent.
Der Farbbildner und das KohlenstofftetrabromidThe color former and the carbon tetrabromide
können auch in Aceton gelöst und dann einer 10° oigen wäßrigen Lösung von Gelatine oder Polyvinylalkohol zugesetzt werden.can also be dissolved in acetone and then added to a 10 ° o strength aqueous solution of gelatin or polyvinyl alcohol.
Wird eine transparente Kopiervorlage auf die lichtempfindliche Schicht gelegt, so entsteht bei Belichtung mit sichtbarem Licht eine negative Kopie. Die Fixierung kann durch Wärmeeinwirkung erfolgen. If a transparent copy template is placed on the light-sensitive layer, this is the result of exposure a negative copy with visible light. The fixation can be done by the action of heat.
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US84749A US3140947A (en) | 1961-01-25 | 1961-01-25 | Graphic data copy sheet and method of using it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1268966B true DE1268966B (en) | 1968-05-22 |
Family
ID=22186977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEP1268A Pending DE1268966B (en) | 1961-01-25 | 1962-01-23 | Photosensitive layer |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3140947A (en) |
| BE (1) | BE612013A (en) |
| CH (1) | CH406255A (en) |
| DE (1) | DE1268966B (en) |
| FR (1) | FR1311084A (en) |
| GB (1) | GB917919A (en) |
| NL (1) | NL273984A (en) |
| SE (1) | SE312975B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3285743A (en) * | 1962-03-14 | 1966-11-15 | Meyer S Agruss | Heterocyclic compounds in admixture with a triphenylmethane leucocyanide dye former system |
| US3503745A (en) * | 1963-05-06 | 1970-03-31 | Bell & Howell Co | Dye sensitization of light sensitive systems |
| GB1055025A (en) * | 1963-05-06 | 1967-01-11 | Bell & Howell Co | Improvements in or relating to the preparation and use of photographic compositions |
| US3476562A (en) * | 1963-05-06 | 1969-11-04 | Bell & Howell Co | Light sensitive composition comprising an organic amine and an organic halogen compound in a hydrophilic binder |
| US3346385A (en) * | 1964-01-16 | 1967-10-10 | Ncr Co | Process for photo-engraving by use of photo-chromic dye and product |
| US3394391A (en) * | 1967-03-29 | 1968-07-23 | Scott Paper Co | Translucent impregnated paper photographic plate |
| US3390996A (en) * | 1964-04-29 | 1968-07-02 | Du Pont | Photosensitive composition comprising an organic nitrogen-containing color-generator, a photo-oxidant and a redox couple |
| US3383212A (en) * | 1964-04-29 | 1968-05-14 | Du Pont | Photographic process utilizing composition comprising an oxidatively activatable color generator, thermally activatable oxidant and a redox couple |
| US3390997A (en) * | 1964-04-29 | 1968-07-02 | Du Pont | Photosensitive composition comprising a triphenylemethane derivative and a nitrogen-containing photo-oxidant |
| US3395018A (en) * | 1964-04-29 | 1968-07-30 | Du Pont | Light-sensitive color-forming composition |
| US3390994A (en) * | 1966-02-17 | 1968-07-02 | Du Pont | Photodeactivatable light-sensitive color-forming composition |
| US3858636A (en) * | 1968-09-23 | 1975-01-07 | Firestone Tire & Rubber Co | Polycarbonamide reinforced non-flatspotting tires having yarns penetrated with aliphatic organic, hydroxylated plasticizer and their manufacture |
| GB1456208A (en) * | 1972-12-28 | 1976-11-24 | Agfa Gevaert | Thermographic processes and recording material for use therein |
| GB1465669A (en) * | 1972-12-28 | 1977-02-23 | Agfa Gevaert | Pressure sensitive recording materials and pressure-recording procews |
| US4343885A (en) * | 1978-05-09 | 1982-08-10 | Dynachem Corporation | Phototropic photosensitive compositions containing fluoran colorformer |
| US4552830A (en) * | 1978-05-09 | 1985-11-12 | Dynachem Corporation | Carbonylic halides as activators for phototropic compositions |
| US4659062A (en) * | 1984-03-26 | 1987-04-21 | Mooney Richard J | Flowgrid regulator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1134587B (en) * | 1959-01-16 | 1962-08-09 | Horizons Inc | Mixtures suitable for producing photosensitive layers |
| DE1135755B (en) * | 1960-02-29 | 1962-08-30 | Dr Karlheinz Pfoertner | Material sensitive to ionizing radiation, insensitive to visible light and process for its production |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190404994A (en) * | 1904-02-29 | 1904-12-31 | Oliver Imray | Improved Manufacture of Coloured Photographic Images or Prints and of Sensitive Surfaces therefor. |
| GB190702462A (en) * | 1906-02-03 | Henry Smith John | Improvements in Sensitizing Bleaching-out Colours | |
| BE362370A (en) * | 1928-07-17 | |||
| US2844465A (en) * | 1954-03-17 | 1958-07-22 | Chalkley Lyman | Photographic process |
-
0
- BE BE612013D patent/BE612013A/xx unknown
- NL NL273984D patent/NL273984A/xx unknown
-
1961
- 1961-01-25 US US84749A patent/US3140947A/en not_active Expired - Lifetime
- 1961-12-01 GB GB43045/61A patent/GB917919A/en not_active Expired
- 1961-12-28 SE SE13057/61A patent/SE312975B/xx unknown
-
1962
- 1962-01-22 FR FR885458A patent/FR1311084A/en not_active Expired
- 1962-01-23 DE DEP1268A patent/DE1268966B/en active Pending
- 1962-01-23 CH CH82062A patent/CH406255A/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1134587B (en) * | 1959-01-16 | 1962-08-09 | Horizons Inc | Mixtures suitable for producing photosensitive layers |
| DE1135755B (en) * | 1960-02-29 | 1962-08-30 | Dr Karlheinz Pfoertner | Material sensitive to ionizing radiation, insensitive to visible light and process for its production |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1311084A (en) | 1962-11-30 |
| NL273984A (en) | |
| CH406255A (en) | 1966-01-31 |
| SE312975B (en) | 1969-07-28 |
| US3140947A (en) | 1964-07-14 |
| BE612013A (en) | |
| GB917919A (en) | 1963-02-06 |
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