DE191326C - - Google Patents
Info
- Publication number
- DE191326C DE191326C DENDAT191326D DE191326DA DE191326C DE 191326 C DE191326 C DE 191326C DE NDAT191326 D DENDAT191326 D DE NDAT191326D DE 191326D A DE191326D A DE 191326DA DE 191326 C DE191326 C DE 191326C
- Authority
- DE
- Germany
- Prior art keywords
- acetic acid
- cellulose
- tetracetate
- attempts
- emulsion
- 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.)
- Active
Links
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 10
- 239000000839 emulsion Substances 0.000 claims description 9
- 229920002678 cellulose Polymers 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000001913 cellulose Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 235000010980 cellulose Nutrition 0.000 claims 4
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 claims 2
- 238000006640 acetylation reaction Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 claims 1
- 150000002168 ethanoic acid esters Chemical class 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 229940081735 acetylcellulose Drugs 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229960000583 Acetic Acid Drugs 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 229920002301 Cellulose acetate Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000490025 Schefflera digitata Species 0.000 description 1
- XFDAMOCMNCFGMN-UHFFFAOYSA-M [Cl-].[Sr+] Chemical compound [Cl-].[Sr+] XFDAMOCMNCFGMN-UHFFFAOYSA-M 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 235000015250 liver sausages Nutrition 0.000 description 1
- XRRQZKOZJFDXON-UHFFFAOYSA-N nitric acid;silver Chemical compound [Ag].O[N+]([O-])=O XRRQZKOZJFDXON-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
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/04—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
Description
Zu 1000 ecm einer 2 V2 prozentigen Lösung acetylierter Cellulose in Eisessig setzt man 35 g einer Mischung, welche aus 4,5 Teilen kristallisiertem Chlorstrontium, 1,5 Teilen wasserfreiem Chlorlithium, 9 Teilen Wasser und 20 Teilen absolutem Alkohol besteht, fügt hierzu 25 g Glycerin, gemischt mit 25 g absolutem Alkohol, und läßt dann in feinem Strahl unter stetem Schütteln die Lösung von 30 g salpetersaurem Silber in 40 g Wasser und 75 g absolutem Alkohol zufließen. Nach gründlichem Durchschütteln wird noch eine Lösung von 10 g Zitronensäure in 40 g absolutem Alkohol hinzugesetzt.To 1000 ecm of a 2 V 2 percent solution of acetylated cellulose in glacial acetic acid, 35 g of a mixture consisting of 4.5 parts of crystallized chlorstrontium, 1.5 parts of anhydrous chlorithium, 9 parts of water and 20 parts of absolute alcohol are added, to which 25 g are added Glycerine, mixed with 25 g of absolute alcohol, and then lets the solution of 30 g of nitric acid silver in 40 g of water and 75 g of absolute alcohol flow in in a fine stream with constant shaking. After thorough shaking, a solution of 10 g citric acid in 40 g absolute alcohol is added.
Die so erhaltene Emulsion kann in üblicher Weise auf einen beliebigen Emulsionsträger gegossen werden. Wasserdurchlässige Stoffe werden dadurch gleichzeitig wasserbeständig, so daß ζ. B. Filtrierpapier, Baumwoll-, Leinen- und Seidenstoffe, auch Kunstseidenstoffe, in ganz hervorragendem Maße als Emulsionsträger geeignet werden.The emulsion obtained in this way can be applied to any emulsion carrier in a customary manner to be poured. Water-permeable fabrics become water-resistant at the same time, so that ζ. B. filter paper, cotton, linen and silk fabrics, including synthetic silk fabrics, in be very suitable as an emulsion carrier.
Wird die Emulsion auf eine Schicht von Celluloseacetat gebracht, so tritt innige Verschmelzung derselben ein.If the emulsion is applied to a layer of cellulose acetate, intimate fusion occurs same one.
Pate ν t-An s PRU c η :Pate ν t-An s PRU c η:
Verfahren zur Herstellung von photographischen Acetylcellulose - Emulsionen, dadurch gekennzeichnet, daß die Acetylcellulose in essigsaurer Lösung angewandt wird.Process for the production of photographic acetyl cellulose emulsions, characterized in that the acetyl cellulose is used in acetic acid solution.
(2. Auflage, ausgegeben am 24. April igii.)(2nd edition, issued on April 24th igii.)
BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICHSDRUCKEREI.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE191326C true DE191326C (en) |
Family
ID=454733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT191326D Active DE191326C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE191326C (en) |
-
0
- DE DENDAT191326D patent/DE191326C/de active Active
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