DE541118C - Antihalation layer for photographic films and plates - Google Patents

Antihalation layer for photographic films and plates

Info

Publication number
DE541118C
DE541118C DE1930541118D DE541118DD DE541118C DE 541118 C DE541118 C DE 541118C DE 1930541118 D DE1930541118 D DE 1930541118D DE 541118D D DE541118D D DE 541118DD DE 541118 C DE541118 C DE 541118C
Authority
DE
Germany
Prior art keywords
plates
photographic films
antihalation layer
layer
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
DE1930541118D
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
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Application granted granted Critical
Publication of DE541118C publication Critical patent/DE541118C/en
Expired legal-status Critical Current

Links

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
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
    • G03C1/83—Organic dyestuffs therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Laminated Bodies (AREA)

Description

Lichthofschutzschicht für fotografische Filme und Platten Lichthofschutzschichten mit Trioxytriplienylmethan-Farbstoffen, z. B. Aurin, sind bekannt, haben jedoch den Nachteil, die Entwicklungsbäder ziemlich stark zu färben.Antihalation layer for photographic films and plates Antihalation layers with trioxytriplienylmethane dyes, e.g. B. Aurin, are known but have the disadvantage of staining the developing baths quite heavily.

M'ie gefunden wurde, kann dieser Nachteil vermieden «-erden. wenn man die Trioxvtriplienylmetlian-Farbstoffe ersetzt durch Benzaurin und seine Derivate, die zur Reihe (ierDioxvtril)lietivlnietlian-Farbstoffe gehören. Es zeigte sich, daß diese Farbstoffe die Eigenschaft haben, sich in den üblichen fotografischen Entwicklern sofort zu entfärben. Zur Herstellung gelber Schichten kann Benzaurin selbst verwendet «-erden. durch Einführung von Substituenten lassen sich auch geeignete rote, violette, blaue und grüne Farbstoffe herstellen.As has been found, this disadvantage can be avoided. if the Trioxvtriplienylmetlian dyes are replaced by benzaurine and its derivatives, belonging to the series (ierDioxvtril) lietivlnietlian dyes. It was found, that these dyes have the property of being used in the usual photographic Instantly decolorize developers. Benzaurine can be used to produce yellow layers self used «-erden. by introducing substituents can also be suitable make red, purple, blue and green dyes.

Der Farbstoff kann entweder einer auf der Rückseite des Schichtträgers oder zwischen Schichtträger und Emulsionsschicht angeordneten Kolloidschicht einverleibt oder, gelöst in organischen Lösungsmitteln, unmittelbar an den Schichtträger angetragen «-erden. Auch hier kiieitien der Atitragslöstuig re-ebenenfalls kleine Mengen eines Kolloides zugesetzt werden.The dye can either be on the back of the support or incorporated in a colloid layer arranged between the support and the emulsion layer or, dissolved in organic solvents, applied directly to the substrate "-earth. Here, too, the fee can also be used for small amounts of one Colloids can be added.

_ Beispiel I Der üblichen aus Gelatine bestehenden, das Rollen verhindernden Rückschicht eines Packfilms mit einem Schichtträger aus Cellulosenitrat oder Celluloseacetat werden 12 "'a beiizaurinsulfosaures latrium und 3 I" Soda zugesetzt. Die Schicht ist violett gefärbt._ Example I The usual gelatin anti-roll Backing layer of a packaging film with a layer support made of cellulose nitrate or cellulose acetate 12 "'a beiizaurinsulfosaures latrium and 3 l" soda are added. The layer is colored purple.

Beispiel e Der üblichen aus Gelatine bestehenden, (las Rollen verhindernden Rückschicht eines Packfilms werden 3 `, Tetrabroinbenzaurin, gelöst in Ammoniak. zugesetzt. Die- Färbung ist blau.Example e To the conventional backing layer of a packing film, consisting of gelatine (the roll-preventing backing layer, 3 ' tetrabroinbenzaurine, dissolved in ammonia.) Is added. The color is blue.

Claims (1)

PATENT ANSPRUCH Lichthofschutzschicht für fotografische Filme und Platten, gekennzeichnet durch einen Gehalt an Benzaurin tin(1 seinen Derivaten. PATENT CLAIM Antihalation layer for photographic films and plates, characterized by a content of benzaurin tin (1 of its derivatives.
DE1930541118D 1930-08-28 1930-08-28 Antihalation layer for photographic films and plates Expired DE541118C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE541118T 1930-08-28

Publications (1)

Publication Number Publication Date
DE541118C true DE541118C (en) 1932-01-06

Family

ID=6559159

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1930541118D Expired DE541118C (en) 1930-08-28 1930-08-28 Antihalation layer for photographic films and plates

Country Status (1)

Country Link
DE (1) DE541118C (en)

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