DE640157C - Light sensitive photographic material for use in ultraviolet light - Google Patents

Light sensitive photographic material for use in ultraviolet light

Info

Publication number
DE640157C
DE640157C DEI45798D DEI0045798D DE640157C DE 640157 C DE640157 C DE 640157C DE I45798 D DEI45798 D DE I45798D DE I0045798 D DEI0045798 D DE I0045798D DE 640157 C DE640157 C DE 640157C
Authority
DE
Germany
Prior art keywords
light
photographic material
ultraviolet light
sensitive photographic
ultraviolet
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
DEI45798D
Other languages
German (de)
Inventor
Dr Hans Arens
Dr John Eggert
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
Priority to DEI45798D priority Critical patent/DE640157C/en
Application granted granted Critical
Publication of DE640157C publication Critical patent/DE640157C/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
    • G03C1/815Photosensitive materials characterised by the base or auxiliary layers characterised by means for filtering or absorbing ultraviolet light, e.g. optical bleaching

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Lichtempfindliches photographisches Material für Aufnahmen im ultravioletten Licht Es wurde bereits vorgeschlagen, lichtempfindliche Halo:gensilberemulsionsschichtenmit einem Überzug von ultraviolettfluoreszierenden Stoffen zu überziehen; beispielsweise wurde hierfür verwendet Chrysin, Fluoren, Anthracen, Vaseline, Paraffinöl, Transformatorenöl. Hierdurch wurde erreicht, da,ß die lichtempfindlichen Halogensilberemulsionsschichten, die ,an sich für kurzwellige ultraviolette Strahlen nicht empfindlich sind, auch zur Aufnahme im ultravioletten Licht geeignet werden. Als Lösungsmittel für die fluoreszierenden Stoffe wurde bereits Glycerin vorgeschlagen, Bei Verwendung der @obengenannten Stoffe als Überzug auf .der lichtempfindlichen Schicht zeigten sich bisweilen Nachteile, die die Verarbeitung dieses Materials erschwerten. Es war nicht immer möglich, diese Stoffe von der lichtempfindlichen Schicht restlos zu entfernen, so daß sehr häufig Flekkenbildung auftrat. Da diese Stoffe 'in den photographischen Behandlungsbädern nicht oder nur wenig löslich sind, trat auch sehr bald eine Verschmutzung der Bäder ein.Photographic light-sensitive material for use in ultraviolet light Light It has been proposed to use halo: gensilver light sensitive emulsion layers to coat with an overcoat of ultraviolet fluorescent materials; for example Chrysin, fluorene, anthracene, petrolatum, paraffin oil, transformer oil were used for this. This achieved that ß the light-sensitive halogen silver emulsion layers, which, in themselves, are not sensitive to short-wave ultraviolet rays, either be suitable for recording in ultraviolet light. As a solvent for the fluorescent substances has already been proposed when using the glycerin @above-mentioned substances as a coating on the light-sensitive layer were found sometimes disadvantages that made the processing of this material difficult. It was not it is always possible to completely remove these substances from the light-sensitive layer, so that staining occurred very frequently. Since these substances' in the photographic Treatment baths are insoluble or only slightly soluble, soiling also occurred very quickly of the baths.

Die vorliegende Erfindung beseitigt diese Nachteile. Das. lichtempfindliche photographische Material wird zu diesem Zwecke auf der Schichtseite mit einer überzugsschicht versehen, die aus einem organischen fluoreszierenden Stoff und einem Netzmittel ,als Bindemittel besteht. Die Verwendung eines Netzmittels als Bindemittel hat den Vorteil, daß es die im photographischen Entwickler nicht löslichen fluoreszierenden Stoffe darin emulgiert oder löst.' Als Bindemittel, die diese Eigenschaften zeigen, sind insbesondere die bekannten Netzmittel; beispielsweise Saponin, Türkischrotöl und der unter dem geschützten Namen Igepon im Handel befindliche Stoff, geeignet. Das als Lösungsmittel für die fluoreszierenden Stoffe bekannte Glycerin ist wegen seiner hygroskopischen Eigenschaft nicht als Bindemittel geeignet und vermag auch nicht die fluoreszierenden Stoffe in den photographischen B'a'dern zu emulgieren.The present invention overcomes these disadvantages. That. photosensitive For this purpose, photographic material is provided with a coating layer on the layer side provided, which consists of an organic fluorescent substance and a wetting agent , exists as a binder. The use of a wetting agent as a binder has the Advantage that it is the fluorescent ones which are not soluble in the photographic developer Emulsifies or dissolves substances in it. ' As binders that show these properties, are in particular the known wetting agents; for example saponin, turkey red oil and the substance commercially available under the protected name Igepon. The glycerine known as a solvent for the fluorescent substances is due to Due to its hygroscopic properties, it is not suitable and can also be used as a binding agent not to emulsify the fluorescent substances in the photographic baths.

Wie .schon .erwähnt, müssen diese Netzmittel in den photographischen Bädern löslich ,sein und die fluoreszierenden Stoffe darin emulgieren oder in gelöstem Zustande erhalten. Außerdem dürfen sie im Bereich der.ultravioletten Strahlen in dünner Schicht nicht absorbieren, damit die Einwirkung des ultravioletten Lichtes auf die lichtempfind: liche Schicht nicht gemindert wird. Beispiel In einer heißen Lösung von i Teil Igepon, 9o Teilen Alkohol und i o Teilen Wasser werden a Teile Fluoren gelöst. Nach dem Erkalten wird die Lösung filtriert und in bekannter Weise auf eine lichtempfindliche Schicht aufgetragen.As already mentioned, these wetting agents must be used in the photographic Baths can be soluble and emulsify the fluorescent substances in them or in dissolved form Conditions preserved. In addition, they are allowed in the area of ultraviolet rays in thin layer does not absorb, thus the action of the ultraviolet light on the light-sensitive layer is not diminished. Example In a hot one Solution of 1 part Igepon, 90 parts alcohol and 10 parts water become a part Dissolved fluorene. After cooling, the solution is filtered and used in a known manner applied to a photosensitive layer.

Claims (1)

PATENTANSPRUCH: Lichtempfindliches photographisches Material. für Aufnahmen im ultraviole Licht, gekennzeichnet durch einen zug auf der 'Schichtseite, der aus ein organischen fluoreszierenden Stoff und einem Netzmittel, beispielsweise Saponin, Türkischroatöloder dem unter dem geschützten Namen Igepon im Handel befindlichen Stoff, als Bindemittel besteht.PATENT CLAIM: Photosensitive photographic material. for Recordings in ultraviolet light, characterized by a train on the 'layer side, that of an organic fluorescent substance and a wetting agent, for example Saponin, Turkish Croat oil or the one under the protected name Igepon in the trade Substance, as a binding agent.
DEI45798D 1932-11-17 1932-11-18 Light sensitive photographic material for use in ultraviolet light Expired DE640157C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI45798D DE640157C (en) 1932-11-17 1932-11-18 Light sensitive photographic material for use in ultraviolet light

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEI0045798 1932-11-17
DEI45798D DE640157C (en) 1932-11-17 1932-11-18 Light sensitive photographic material for use in ultraviolet light

Publications (1)

Publication Number Publication Date
DE640157C true DE640157C (en) 1936-12-23

Family

ID=25981718

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI45798D Expired DE640157C (en) 1932-11-17 1932-11-18 Light sensitive photographic material for use in ultraviolet light

Country Status (1)

Country Link
DE (1) DE640157C (en)

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