DE559223C - Process for the production of an incombustible cellulose hydrate film, optionally containing glycerine, for photographic use - Google Patents
Process for the production of an incombustible cellulose hydrate film, optionally containing glycerine, for photographic useInfo
- Publication number
- DE559223C DE559223C DES84969D DES0084969D DE559223C DE 559223 C DE559223 C DE 559223C DE S84969 D DES84969 D DE S84969D DE S0084969 D DES0084969 D DE S0084969D DE 559223 C DE559223 C DE 559223C
- Authority
- DE
- Germany
- Prior art keywords
- incombustible
- production
- cellulose hydrate
- optionally containing
- containing glycerine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229920002678 cellulose Polymers 0.000 title claims description 9
- 239000001913 cellulose Substances 0.000 title claims description 9
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 5
- 235000011187 glycerol Nutrition 0.000 title claims description 3
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 239000000126 substance Substances 0.000 claims description 9
- 206010070834 Sensitisation Diseases 0.000 claims description 6
- 230000008313 sensitization Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 150000003863 ammonium salts Chemical class 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005470 impregnation Methods 0.000 claims 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 6
- 239000004254 Ammonium phosphate Substances 0.000 description 5
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 5
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 3
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 3
- 235000011130 ammonium sulphate Nutrition 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000004627 regenerated cellulose Substances 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 150000008049 diazo compounds Chemical class 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
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QDHHCQZDFGDHMP-UHFFFAOYSA-N Chloramine Chemical compound ClN QDHHCQZDFGDHMP-UHFFFAOYSA-N 0.000 description 1
- NENBAISIHCWPKP-UHFFFAOYSA-N Clofenamide Chemical compound NS(=O)(=O)C1=CC=C(Cl)C(S(N)(=O)=O)=C1 NENBAISIHCWPKP-UHFFFAOYSA-N 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- UCEOSZQSKNDLSA-UHFFFAOYSA-N N.[I+] Chemical compound N.[I+] UCEOSZQSKNDLSA-UHFFFAOYSA-N 0.000 description 1
- JPYHHZQJCSQRJY-UHFFFAOYSA-N Phloroglucinol Natural products CCC=CCC=CCC=CCC=CCCCCC(=O)C1=C(O)C=C(O)C=C1O JPYHHZQJCSQRJY-UHFFFAOYSA-N 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- VYOZKLLJJHRFNA-UHFFFAOYSA-N [F].N Chemical compound [F].N VYOZKLLJJHRFNA-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- SWLVFNYSXGMGBS-UHFFFAOYSA-N ammonium bromide Chemical compound [NH4+].[Br-] SWLVFNYSXGMGBS-UHFFFAOYSA-N 0.000 description 1
- 239000000987 azo dye Substances 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- OHAVYOCBYILSBZ-UHFFFAOYSA-M dihydroxyboron;hydroxy(dioxo)tungsten Chemical class O[B]O.O[W](=O)=O OHAVYOCBYILSBZ-UHFFFAOYSA-M 0.000 description 1
- 230000000694 effects Effects 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
- 238000010348 incorporation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 1
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/11—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
- D06M11/13—Ammonium halides or halides of elements of Groups 1 or 11 of the Periodic Table
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
- D06M11/55—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts
- D06M11/56—Sulfates or thiosulfates other than of elements of Groups 3 or 13 of the Periodic Table
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/68—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof
- D06M11/70—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof with oxides of phosphorus; with hypophosphorous, phosphorous or phosphoric acids or their salts
- D06M11/71—Salts of phosphoric acids
-
- 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
-
- 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
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/775—Photosensitive materials characterised by the base or auxiliary layers the base being of paper
- G03C1/785—Photosensitive materials characterised by the base or auxiliary layers the base being of paper translucent
-
- 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
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/795—Photosensitive materials characterised by the base or auxiliary layers the base being of macromolecular substances
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Textile Engineering (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Description
Es ist bekannt, daß die Häutchen aus reiner Cellulose oder solche, die eine gewisse Menge eines Weichmachungsmittels, wie z. B. Glycerin, enthalten, wie Papier verbrennen. So kann z. B. ein Film aus regenerierter Cellulose, der an sich nicht entflammbar ist, wenn er sich in einer kompakten Rolle befindet, oder wenn man auf ihn in einem Projektor eine kräftige Lichtquelle, wie eine Bogenlampe, einwirken läßt, verbrennen, wenn man ihn in verteiltem Zustand einer Flamme nähert.It is known that the skin is made of pure cellulose or those that have a certain Amount of a softening agent, e.g. B. glycerin, contain how paper burns. So z. B. a film made of regenerated cellulose, which is inherently non-flammable, when it's in a compact role, or when you look at it in a projector a strong light source, such as an arc lamp, can have its effect, burn if you use one in a dispersed state Flame approaching.
Es wird daher gemäß vorliegender Erfindung vorgeschlagen, eine besonders aus Viskose erhaltene Cellulosehaut, die glyceriniert sein kann oder nicht, unverbrennlich zu machen, indem man sie möglichst vollständig vermittels einer Lösung von unverbrennlichen, in Wasser löslichen, nicht oder nur schwach hygroskopischen Stoffen imprägniert und diese Stoffe in solchen Mengen anwendet, daß nach dem Trocknen des Häutchens kein Ausblühen eintritt oder den physikalischen oder chemischen Eigenschaften schädliche Stoffe entstehen. Die Einverleibung der unverbrennlich machenden Stoffe kann entweder im Laufe der Herstellung, d. h. vor dem ersten Trocknen des Häutchens, oder bei dem fertigen Häutchen erfolgen.It is therefore proposed according to the present invention, especially one made of viscose cellulose skin obtained, which may or may not be glycerinated, becomes incombustible by making them as completely as possible by means of a solution of incombustible, impregnated in water-soluble, non-hygroscopic or only slightly hygroscopic substances and use these substances in such quantities that after the skin has dried no Blooming occurs or the physical or chemical properties are detrimental Substances are created. The incorporation of incombustible substances can either in the course of manufacture, d. H. before the first drying of the skin, or at that finished skins are made.
Das Verfahren soll im besonderen bei einem Cellulosefilm für Photographic oder Kinematographie angewendet werden. Die Unverbrennlicbmachung kann in diesem Fall entweder vor der Sensibilisierung, gleichzeitig mit der Sensibilisierung oder nach der Sensibilisierung oder Entwicklung vorgenommen werden. Für die Sensibilisierung verwendet man z. B. eine Diazoverbindung, die zusammen mit einer Azofarbstoffkomponente dem Film einverleibt wird, so daß der Film durch einfache Einwirkung von Ammoniakdämpfen oder anderen Dämpfen entwickelt werden kann.The method should in particular with a cellulose film for photographic or Cinematography can be applied. In this case, incombustion can either before the sensitization, at the same time as the sensitization or after the Awareness or development can be made. For sensitization one uses z. B. a diazo compound, which is incorporated into the film together with an azo dye component, so that the Film developed by simple exposure to ammonia vapors or other vapors can be.
Für das Unverbrennlichmachen wendet man vorteilhaft eine Lösung von Ammoniumphosphat des Handels an, die ungefähr 10 °/0 Phosphat enthält. Den Überschuß der Salzlösung entfernt man vor dem Trocknen. Ammoniumphosphat und Chlorammonium wirken in gleichem Sinne. Von diesen SaI-zen wendet man zweckmäßig keine stärkeren Lösungen als solche von 8 °/o an> weil bei höherer Konzentration nach einiger Zeit eine oberflächliche Kristallisation eintreten kann, die das Material opak erscheinen läßt. Ammoniumsulfat, Ammoniumchlorid und Ammoniumphosphat sind allein oder in Mischung ausgezeichnete unverbrennlich machendeFor the Unverbrennlichmachen it is advantageous to apply a solution of ammonium phosphate of commerce, which contains about 10 ° / 0 phosphate. The excess saline solution is removed before drying. Ammonium phosphate and chlorammonium act in the same way. Of these Sal zen one turns expedient no stronger solutions than those of 8 ° / o> because a superficial crystallization can occur at higher concentration after some time, which makes the material appear opaque. Ammonium sulfate, ammonium chloride, and ammonium phosphate, alone or in combination, are excellent incombustible agents
Körper. Auch in diesem Fall empfiehlt es sich aber, nicht zu hohe Konzentrationen anzuwenden. Body. In this case, too, it is advisable not to use concentrations that are too high.
Der allgemeinsten Anwendung ist das Bromammonium fähig. Wenn man es in einer Konzentration von ungefähr ng pro ιoo ecm dem Sensibilisierungsbade zusetzt, so erreicht man eine vollständige Unverbrennlichmachung der Cellulosefilme. DasBromammonium is capable of the most common use. If you put it in a concentration of about ng per ιoo ecm added to the sensitization bath, in this way a complete incombustibility of the cellulose films is achieved. That
ίο Bromammonium kann übrigens ebenso· wie die anderen Ammoniumsalze dem lichtempfindlichen Cellulosehäutchen zu jedem beliebigen Zeitpunkt der Darstellung zugefügt werden, also entweder vor, während oder nach der Sensibilisierung. Es kann ferner ebenso wie die übrigen löslichen unverbrennlich machenden Stoffe dem Cellulosehäutchen einverleibt werden, indem man dieses mit einem beispielsweise aus einer wäßrigen Gelatmelösung bestehenden Firnis, der viel Ammoniumsalze enthält, überzieht.By the way, bromammonium can also · like the other ammonium salts to the photosensitive cellulose pellicle to any one At the time of presentation, i.e. either before, during or after the sensitization. It can also just like the other soluble non-combustible substances the cellulose membrane be incorporated by mixing this with, for example, an aqueous gelatin solution existing varnish, which contains a lot of ammonium salts.
Die genannten Stoffe können auch im Gemisch angewandt werden. So bildet z. B. ein Gemisch von 6 g Bromammonium und 5 g Ammoniumsulfat, in 100 ecm Wasser oder Sensibilisierungsbad aufgelöst, ein ausgezeichnetes unverbrennlich machendes Mittel, das kein Ausblühen ergibt und auch in Gegenwart von in der Diazotype üblichen Metallsalzen verwendbar ist.The substances mentioned can also be used in a mixture. So z. B. a Mixture of 6 g of bromammonium and 5 g of ammonium sulfate in 100 ecm of water or Dissolved sensitizing bath, an excellent incombustible agent, which does not result in blooming and also in the presence of metal salts customary in the diazotype is usable.
Jodammonium und Fluorammonium sind, obwohl sie praktisch weniger in Betracht kommen, ebenfalls verwendbar, aber vorzugsweise als Bestandteil eines Gemisches unverbrennlich machender Stoffe. Ebenso hat sich noch Natriumborwolframat brauchbarIodine ammonium and fluorine ammonium, although practically less of a consideration come, can also be used, but preferably non-combustible as part of a mixture making substances. Sodium borotungstate has also proven to be useful
erwiesen. proven.
i. Man tränkt eine Folie aus regenerierter Cellulose mit einer Lösung, die in 1000 Volumenteilen Wasser 7 Gewichtsteile 1 · 2 · 4-Diazonaphtholsulfosäure, 1,5 Gewichtsteile Phloroglucin, 10 Gewichtsteile Nickelsulfat, 100 Gewichtsteile Bromammonium enthält. Der so erhaltene lichtempfindliche Film ist nach der Trocknung unverbrennbar und behält diese Eigenschaft auch nach der Entwicklung mit gasförmigem Ammoniak. In obiger Lösung- kann man an Stelle von Bromammonium auch Ammonsulfat, -chlorid, -phosphat oder Gemische dieser Verbindungen, zweckmäßig in etwas geringeren Mengen, verwenden. Derartige Filme sind in der Brennbarkeit gegenüber Filmen, die die genannten Zusätze nicht enthalten, erheblich herabgesetzt.i. A sheet of regenerated cellulose is impregnated with a solution in 1000 parts by volume Water 7 parts by weight of 1 · 2 · 4-diazonaphtholsulfonic acid, 1.5 parts by weight of phloroglucinol, 10 parts by weight of nickel sulfate, Contains 100 parts by weight of bromammonium. The photosensitive film thus obtained is incombustible after drying and retains this property even after development with gaseous ammonia. In the above solution you can use bromammonium instead also ammonium sulfate, chloride, phosphate or mixtures of these compounds, expediently use in slightly smaller quantities. Such films are in flammability over films that include those mentioned Accessories not included, significantly reduced.
2. Ein Film aus regenerierter Cellulose, der mittels der Diazoverbindung des p-Amidodiphenylamins lichtempfindlich gemacht und nach der Belichtung mit einer alkalischen Phloroglucinlösung entwickelt ist, wird nachträglich in einer io°/0igen Ammonphosphatlösung gebadet. Statt Ammonphosphat kann man Ammoniumbromid, -sulfat, -chlorid, Borax oder borwolframsaure Salze in evtl. etwas geringeren Mengen verwenden. Alle diese Verbindungen setzen die Entflammbarkeit des Cellulosehydratfilms erheblich herab.2. A film of regenerated cellulose, which is sensitized by means of the diazo compound of the p-Amidodiphenylamins and developed after exposure with an alkaline phloroglucin, is subsequently bathed in a io ° / 0 by weight ammonium phosphate solution. Instead of ammonium phosphate, ammonium bromide, sulfate, chloride, borax or borotungstic acid salts can be used in possibly smaller amounts. All of these compounds significantly reduce the flammability of the cellulose hydrate film.
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR559223X | 1927-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE559223C true DE559223C (en) | 1932-09-16 |
Family
ID=8942101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES84969D Expired DE559223C (en) | 1927-12-07 | 1928-04-04 | Process for the production of an incombustible cellulose hydrate film, optionally containing glycerine, for photographic use |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE356312A (en) |
| DE (1) | DE559223C (en) |
| FR (1) | FR645358A (en) |
| GB (1) | GB301878A (en) |
-
0
- BE BE356312D patent/BE356312A/xx unknown
-
1927
- 1927-12-07 FR FR645358D patent/FR645358A/en not_active Expired
-
1928
- 1928-04-04 DE DES84969D patent/DE559223C/en not_active Expired
- 1928-12-06 GB GB36068/28A patent/GB301878A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB301878A (en) | 1930-03-06 |
| BE356312A (en) | |
| FR645358A (en) | 1928-10-24 |
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