DE497227C - X-ray film emulsified on both sides - Google Patents
X-ray film emulsified on both sidesInfo
- Publication number
- DE497227C DE497227C DESCH82767D DESC082767D DE497227C DE 497227 C DE497227 C DE 497227C DE SCH82767 D DESCH82767 D DE SCH82767D DE SC082767 D DESC082767 D DE SC082767D DE 497227 C DE497227 C DE 497227C
- Authority
- DE
- Germany
- Prior art keywords
- sides
- ray film
- film
- emulsion
- ray
- 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
- 239000000839 emulsion Substances 0.000 claims description 7
- 239000006224 matting agent Substances 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 description 2
- ADZWSOLPGZMUMY-UHFFFAOYSA-M silver bromide Chemical compound [Ag]Br ADZWSOLPGZMUMY-UHFFFAOYSA-M 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 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
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/16—X-ray, infrared, or ultraviolet ray processes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Description
Doppelseitig emulsionierter Röntgenfilm Bei normalen photographischen Aufnahmen dient das Filmnegativ stets zur Herstellung einer Kopie. Handelt es sich dagegen um Röntgennegative, dann erfolgt die Herstellung einer Kopie nur in den seltensten Fällen. Das Röntgennegativ wird stets im Original betrachtet. Die Betrachtung der Röntgennegative erfolgt stets vor einer mattlerten Scheibe. Das hat eine ganze Reihe von Mängeln.Double-sided emulsified X-ray film For normal photographic The film negative is always used to make a copy. Is it on the other hand, for X-ray negatives, a copy is only made in the rarest cases. The X-ray negative is always viewed in the original. The contemplation the x-ray negative is always made in front of a matt-finished pane. That has a whole Number of defects.
Gemäß der Erfindung soll das dadurch besritigt werden, daß die Mattierung in die Emulsion verlegt wird und man so einen doppelseitig mattierten Röntgenfilm herstellen kann. Man erspart dadurch die Mattscheibe. Der Film kann ohne weiteres gegen die Sonne sowie gegen eine elektrische Lampe betrachtet «-erden. Verwendet man für die Mattierung ein Material, das eine gewisse Weichheit besitzt, so hat man noch den Vorteil, daß die Bromsilberkörner weicher gebettet und hierdurch der betreffende Film ;;e gen Beschädigung geschützt ist.According to the invention, this is to be eliminated in that the matting is laid in the emulsion and you get a double-sided matt X-ray film can produce. This saves the screen. The film can easily when viewed against the sun as well as against an electric lamp. Used a material that has a certain softness is used for matting one still has the advantage that the bromide-silver grains are more softly embedded and thereby the the film in question ;; e is protected against damage.
Ein solcher Film wird sowohl gegen scherenden wie reibenden Druck unempfindlich. zeigt auch nicht den sonst zu beobachtenden Druckschleier. Diese Mattierung des Films ergibt weiter den Vorteil, dah man die Empfindlichkeit der Emulsion steigern kann. Das erfolgt durch die leichtere Diffusion des Entwicklers. Dieser dringt tiefer in die Schicht ein und bringt daher mehr Bromsilber zur Entwicklung als ohne Verwendung eines Mattierungsmittels. Gleichzeitig tritt aber auch eine optische Erhöhung der Wirksamkeit des Silbers ein. Jedenfalls ergibt die gleiche Emulsion mit einem Mattzusatz gegossen eine höhere Empfindlichkeit und bessere Deckung wie ohne Mattzusatz.Such a film is resistant to both shearing and rubbing pressure insensitive. also does not show the pressure haze that is otherwise to be observed. These Matting the film has the further advantage of reducing the sensitivity of the Can increase emulsion. This is due to the easier diffusion of the developer. This penetrates deeper into the layer and therefore brings more bromide silver to develop than without using a matting agent. But at the same time there is also one optical increase in the effectiveness of the silver. Anyway, the result is the same Emulsion with a matte additive poured a higher sensitivity and better coverage like without matt addition.
Die Herstellung der Mattierung kann auf verschiedene Weise erfolgen z. B. dadurch, daß einer normalen Röntgenemulsion auf 300 ccm Emulsion 3 g fein verteilte Stärke zugegeben und diese Emulsion vergossen wird. Der erhaltene Film zeigt eine gleichmäßige Mattierung auf beiden Seiten.The matt finish can be produced in various ways, for example: B. by adding 3 g of finely divided starch to a normal X-ray emulsion to 300 ccm emulsion and pouring this emulsion. The film obtained shows a uniform matting on both sides.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH82767D DE497227C (en) | 1927-05-21 | 1927-05-22 | X-ray film emulsified on both sides |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESC082767 | 1927-05-21 | ||
| DESCH82767D DE497227C (en) | 1927-05-21 | 1927-05-22 | X-ray film emulsified on both sides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE497227C true DE497227C (en) | 1930-05-03 |
Family
ID=25993600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DESCH82767D Expired DE497227C (en) | 1927-05-21 | 1927-05-22 | X-ray film emulsified on both sides |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE497227C (en) |
-
1927
- 1927-05-22 DE DESCH82767D patent/DE497227C/en not_active Expired
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