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DE579078C - Antihalation layers for photographic plates and films - Google Patents

Antihalation layers for photographic plates and films

Info

Publication number
DE579078C
DE579078C DEI43830D DEI0043830D DE579078C DE 579078 C DE579078 C DE 579078C DE I43830 D DEI43830 D DE I43830D DE I0043830 D DEI0043830 D DE I0043830D DE 579078 C DE579078 C DE 579078C
Authority
DE
Germany
Prior art keywords
films
photographic plates
antihalation layers
antihalation
dyes
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
Application number
DEI43830D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to BE394502D priority Critical patent/BE394502A/xx
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI43830D priority patent/DE579078C/en
Priority to US656358A priority patent/US2058725A/en
Priority to GB5306/33A priority patent/GB399387A/en
Application granted granted Critical
Publication of DE579078C publication Critical patent/DE579078C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/76Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/825Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
    • G03C1/83Organic dyestuffs therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Laminated Bodies (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Description

Lichthofschutzschichten für photographische Platten und Filme Im Patent 518363 werden Lichthofschutzschichten für photographische Platten und Filme beschrieben, die als Farbstoffe Kondensationsprodukte substituierter aromatischer Aldehyde mit eine reaktionsfähige Methylgruppe besitzenden quartären heterocyclischen Basen enthalten.Antihalation layers for photographic plates and films in patent 518363 describes antihalation layers for photographic plates and films, aromatic aldehydes substituted as dyes with condensation products contain a reactive methyl group possessing quaternary heterocyclic bases.

Es wurde weiterhin gefunden, daß, man vorteilhaft solche Kondensationsprodukte anwendet, die eine Atomgruppierung substantiven Charakters aufweisen. Derartige Atomgruppierungen sind z, B. Diphenyl, 3, 3'-Dimethoxydiphenyl, Carbazol, Azoxybenzol, Diphenylharnstoff usw.It has also been found that such condensation products are advantageous which have a substantive atom grouping. Such Atom groupings are, for example, diphenyl, 3, 3'-dimethoxydiphenyl, carbazole, azoxybenzene, Diphenylurea, etc.

Zur Herstellung der neuen Farbstoffe kann man als Kondensationskomponenten u. a. verwenden: 4, 4'-Diphenyldialdehyd, 4, 4'-Azoxybenzanilin, p, p'-Dichinaldin, p, p'-Bisbenzoxazol, p, p'-Bisbenzthiazol, p-Phenylchinaldin, p - Phenylbenzoxazol, p - Phenylbenzthiazol, p-Chlorphenylchinaldin usw. Die mit diesen Farbstoffen angefärbten Lichthofschutz- bzw. Filterschichten haben den Vorteil, daß, sie ausgesprochen substantiven Charakter besitzen, also das Bindemittel der Schicht sehr gut anfärben und trotzdem vom alkalischen Entwickler in kurzer Zeit vollständig und dauerhaft entfärbt werden. Sie unterscheiden sich hierin vorteilhaft von den an sich zur Herstellung von Lichthofschutz- und Filterschichten bereits bekannten substantiven Azofarbstoffen, die sich erst nach dem -Entwicklungsprozeß mit Hilfe besonderer Bäder (z. B. Natriumhydrosulfit) entfärben lassen.Condensation components can be used to produce the new dyes i.a. use: 4, 4'-diphenyldialdehyde, 4, 4'-azoxybenzaniline, p, p'-dichinaldine, p, p'-bisbenzoxazole, p, p'-bisbenzthiazole, p-phenylquinaldine, p - phenylbenzoxazole, p - Phenylbenzthiazole, p-Chlorophenylquinaldine, etc. Those stained with these dyes Antihalation or filter layers have the advantage that they are very substantive Have character, i.e. color the binder of the layer very well and still can be completely and permanently decolorized by the alkaline developer in a short time. In this respect, they differ advantageously from those used per se for the production of antihalation and filter layers already known substantive azo dyes, which are only becoming after the development process with the help of special baths (e.g. sodium hydrosulphite) let discolor.

Als Beispiele seien folgende Farbstoffe genannt r. Das Kondensationsprodukt von molekularen Mengen Chinaldindimethylsulfat und 4, 4'-Diphenyldialdehyd in Pyridin, gelb gefärbt. 2. Das Kondensationsprodukt von Chinaldindimethylsulfat und Azoxybenzanilin in Pyridin, gelb gefärbt. 3. Das Kondensationsprodukt von Bisbenzoxazoldimethylsulfat und Dimethylamidobenzaldehyd Essigsäureanhydrid, rot gefärbt. 4. Das Kondensationsprodukt von p-Phenylchinaldindimethylsulfat und Dimethylamidobenzaldehyd, violett gefärbt. Zur Herstellung von Lichthofschutz- oder Filterschichten mit diesen Farbstoffen verfährt man nach der im Hauptpatent (Patent 518 363) angegebenen Weise. An Stelle der Gelatine können auch andere quellbare Kolloide, z. B. polyglukuronsaures Calcium, als Bindemittel verwendet werden.The following dyes may be mentioned as examples. The condensation product of molecular amounts of quinaldine dimethyl sulfate and 4,4'-diphenyldialdehyde in pyridine, colored yellow. 2. The condensation product of quinaldine dimethyl sulfate and azoxybenzaniline in pyridine, colored yellow. 3. The condensation product of bisbenzoxazole dimethyl sulfate and dimethylamidobenzaldehyde acetic anhydride, colored red. 4. The condensation product of p-phenylquinaldine dimethyl sulfate and dimethylamidobenzaldehyde, colored purple. To produce antihalation or filter layers with these dyes, the procedure given in the main patent (patent 518 363) is followed. Instead of gelatin, other swellable colloids, e.g. B. polyglucuronic acid calcium, can be used as a binder.

Claims (1)

PATENTANSPRUCH: Lichthofschutzschichten für photographische Platten und Filme nach Patent 518 363, gekennzeichnet durch die Verwendung solcher Kondensationsprodukte, die eine Atomgruppierung substantiven Charakters besitzen.PATENT CLAIM: Antihalation layers for photographic plates and films according to patent 518 363, characterized by the use of such condensation products, which have a grouping of atoms of a substantive character.
DEI43830D 1930-02-18 1932-02-25 Antihalation layers for photographic plates and films Expired DE579078C (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE394502D BE394502A (en) 1930-02-18
DEI43830D DE579078C (en) 1930-02-18 1932-02-25 Antihalation layers for photographic plates and films
US656358A US2058725A (en) 1932-02-25 1933-02-11 Backing of photographic materials to prevent halation
GB5306/33A GB399387A (en) 1930-02-18 1933-02-21 Improvements in anti-halation layers for photographic plates and films

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE518363T 1930-02-18
DEI43830D DE579078C (en) 1930-02-18 1932-02-25 Antihalation layers for photographic plates and films

Publications (1)

Publication Number Publication Date
DE579078C true DE579078C (en) 1933-06-20

Family

ID=25945041

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI43830D Expired DE579078C (en) 1930-02-18 1932-02-25 Antihalation layers for photographic plates and films

Country Status (3)

Country Link
BE (1) BE394502A (en)
DE (1) DE579078C (en)
GB (1) GB399387A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746135C (en) * 1935-04-10 1944-06-05 Ig Farbenindustrie Ag Process for the production of colored images in halogen silver emulsion layers by color development

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746135C (en) * 1935-04-10 1944-06-05 Ig Farbenindustrie Ag Process for the production of colored images in halogen silver emulsion layers by color development

Also Published As

Publication number Publication date
GB399387A (en) 1933-10-05
BE394502A (en)

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