DE1008569B - Method for distinguishing between different types of raw films - Google Patents

Method for distinguishing between different types of raw films

Info

Publication number
DE1008569B
DE1008569B DES44940A DES0044940A DE1008569B DE 1008569 B DE1008569 B DE 1008569B DE S44940 A DES44940 A DE S44940A DE S0044940 A DES0044940 A DE S0044940A DE 1008569 B DE1008569 B DE 1008569B
Authority
DE
Germany
Prior art keywords
distinguishing
different types
raw films
pyrazoline
ring
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.)
Pending
Application number
DES44940A
Other languages
German (de)
Inventor
Dr Luigi Barbaro
Dr Giorgio Petit Bon
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.)
Ferrania SpA
Original Assignee
Ferrania SpA
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 Ferrania SpA filed Critical Ferrania SpA
Publication of DE1008569B publication Critical patent/DE1008569B/en
Pending 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
    • G03C1/815—Photosensitive materials characterised by the base or auxiliary layers characterised by means for filtering or absorbing ultraviolet light, e.g. optical bleaching
    • G03C1/8155—Organic compounds therefor
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3442—Heterocyclic compounds having nitrogen in the ring having two nitrogen atoms in the ring
    • C08K5/3445—Five-membered rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)

Description

DEUTSCHESGERMAN

Die Erfindung bezieht sich auf ein Verfahren, das die Unterscheidung der verschiedenen Sorten von Rohstoffen für photographische und kinematographische Filme ermöglicht.The invention relates to a method that the differentiation of the different types of raw materials for photographic and cinematographic Films made possible.

Die als Träger für die lichtempfindlichem Ma- ·ς tenialien in der photographischen und kinematographischen Industrie verwendeten Cellulosederivate sind schon so zahlreich geworden (z. B. Nitrocellulose, organische Celluloseester und Kunststoffe der verschiedensten Zusammensetzung), daß es sehr erwünscht ist, diese während der Verarbeitung und Verwendung und insbesondere bei der Zurückgewininung leicht unterscheiden zu können.The cellulose derivatives used as supports for the light-sensitive ma- · ς tenialien in the photographic and cinematographic industry have already become so numerous (as nitrocellulose, organic Celluloseester and plastics such. The diverse composition) that it is highly desirable to them during processing and use and especially in recovery.

Es ist bekannt, den Cellulosederivaten Verbindungen zuzusetzen, die diese ohne sichtbare Verfärbung lassen, ihnen im ultravioletten Licht aber eine Fluoreszenz verleihen, durch die sie leicht zu erkennen sind.It is known that compounds can be added to the cellulose derivatives which do not discolour them visibly but give them a fluorescence in ultraviolet light that makes them easy to recognize are.

Obwohl für diesen Zweck zahlreiche Substanzen bekannt sind, kommen für die praktische Anwendung nur wenige in Frage, da an deren Löslichkeit, Konzentration und photographische Inaktivität gewisse Anforderungen gestellt werden.Although numerous substances are known for this purpose, come to practical use only a few in question, because of their solubility, concentration and photographic inactivity Requirements are made.

Es ist bekannt, daß für diesen Zweck das 7-Diäthylamino-4-methylcumarin oder nach einem anderen Votschlag Methyl-anthranilat verwendet wird.It is known that for this purpose the 7-diethylamino-4-methylcoumarin or, according to another recommendation, methyl anthranilate is used.

Es ist nun gefunden worden, daß man den cellulosehaltigen Materialien zu dem vorgesehenen Zweck auch Pyrazolinderivate in sehr geringer Menge zusetzen kann, z. B. 0,005 bis 0,03 Gewichtsteile auf 1000 Teile Filmimaterial, wodurch der so behandelten Unterlage eine starke Fluoreszenz erteilt wird, ohne daß dadurch die phO'tographischen Eigenschaften der Emulsion ungünstig beeinflußt werden.It has now been found that cellulosic materials can be used for the intended purpose can also add pyrazoline derivatives in very small amounts, e.g. B. 0.005 to 0.03 parts by weight 1000 parts of film material, making the so treated The substrate is given a strong fluorescence without affecting the photographic properties of the Emulsion are adversely affected.

Einige solcher Pyrazolinderivate sind schon seit langem bekannt, andere sind erst kürzlich hergestellt worden, aber für den vorgesehenen Zweck noch nicht verwendet worden.Some of such pyrazoline derivatives have been known for a long time, others have only recently been produced but has not yet been used for the intended purpose.

Die gemäß der vorliegenden Erfindung verwendbaren Verbindungen sind Pyrazolinabkömmlinge der allgemeinen FormelThe compounds useful in accordance with the present invention are pyrazoline derivatives of general formula

CH,CH,

C-R'C-R '

R" —CHb 2NR "-CHb 2N

worin sich in der 1-, 3- und 5-Stellung ein unsubstituiierter oder substituierter aromatischer Rest befindet, welcher dem Pyrazolinring entweder direkt oder durch eine Methinkette (— CH = CH —)„ verbunden sein kann.in which there is an unsubstituted in the 1-, 3- and 5-positions or substituted aromatic radical, which is either directly to the pyrazoline ring or linked by a methine chain (- CH = CH -) can be.

Verfahren zur Unterscheidung
verschiedener Typen von RohfilmenProcedure for differentiation
various types of raw films

Anmelder:Applicant:

Societä per Azioni Ferrania,
Mailand (Italien)Societä per Azioni Ferrania,
Milan (Italy)

Vertreter: Dipl.-Ing. F. WeickmannRepresentative: Dipl.-Ing. F. Weickmann

und Dr.-Ing. A. Weickmann, Patentanwälte,and Dr.-Ing. A. Weickmann, patent attorneys,

München 2,- Brunnstr. 8/9Munich 2, - Brunnstr. 8/9

Beanspruchte Priorität:
Italien vom 4. August 1954Claimed priority:
Italy from August 4th 1954

Dr. Luigi Barbaro und Dr. Giorgio Petit Bon,Dr. Luigi Barbaro and Dr. Giorgio Petit Bon,

Cairo-Montenotte, Savona (Italien),Cairo-Montenotte, Savona (Italy),

sind als Erfinder genannt wordenhave been named as inventors

Gegenüber den bisher bekannten. Substanzen haben die vorgeschlagenen Pyrazolinderivate den großen Vorteil, daß sie je nach Substitution im UV.-Licht verschiedenfarbige Fluoreszenz zeigen, ohne die photographischen Eigenschaften der Emulsion ungünstig zu beeinflussen.Compared to the previously known. Substances, the proposed pyrazoline derivatives have the great The advantage that, depending on the substitution in UV light, they show fluorescence of different colors without the to adversely affect the photographic properties of the emulsion.

Eine der für diesen Zweck vorgeschlagenen Substanzen ist z. B. das l-5-Diphenyl-3-styryl-pyrazolin, das im UV.-Licht eine starke grüne Fluoreszenz zeigt. Die Herstellung kann gemäß Bei Istein, 23, 264, durch Einwirkung von Phenylhydrazin auf Dibenizalaceton erfolgen.One of the substances proposed for this purpose is e.g. B. l-5-diphenyl-3-styryl-pyrazoline, which shows strong green fluorescence in UV light. The production can according to Bei Istein, 23, 264, by the action of phenylhydrazine on dibenizalacetone take place.

Die zuzusetzenden Mengen können zwischen 0,005 und 0,03 auf 1000 Gewichtsteile Filmmaterial schwanken und erteilen der damit versehenen Unterlage starke Fluoreszenz im UV.-Licht, so daß diese von anderen leicht unterscheidbar ist.The amounts to be added can vary between 0.005 and 0.03 per 1000 parts by weight of film material and give the substrate provided with it strong fluorescence in UV light, so that it is from easily distinguishable from others.

Ein weiterer Vorteil des erfindungsgemäßen Verfahrens ist es, daß die vorgeschlagenen Pyrazolinderivate in denselben Lösungsmitteln bzw. Lösungsmittelgeniischen löslich sind, wie sie in der Praxis zur Herstellung von Celluloseesterlösungen üblich sind.Another advantage of the method according to the invention it is that the proposed pyrazoline derivatives in the same solvents or solvent mixtures are soluble, as are customary in practice for the production of cellulose ester solutions are.

Zur Herstellung einer Celluloseesterlösung, ausgehend von 100 kg Celluloseester, gelöst in Methylenchlorid, setzt man z. B. Ig des betreffenden Pyrazolindt-rivats, gelöst in Methylenchlorid, zu.To make a cellulose ester solution, starting out 100 kg of cellulose ester dissolved in methylene chloride are used, for. B. Ig of the relevant Pyrazolindt derivative, dissolved in methylene chloride, too.

Claims (2)

Patentansprüche:Patent claims: 1. Verfahren zur Unterscheidung verschiedener Typen von Rohfilmen aus einem Cellulosederivate1. Method of distinguishing between different types of raw films made from a cellulose derivative 709 509/354709 509/354 3 43 4 enthaltenden Material, dadurch gekennzeichnet, tuierte oder substituierte Arylgruppen sind, die mitcontaining material, characterized in that they are substituted or substituted aryl groups with daß dem Material eine im UV. fluoreszierende dem PyrazoHnring entweder direkt oder durchthat the material has one in the UV. fluorescent ring either directly or through the pyrazzo ring Pyrazolinverbindung der allgemeinen Formel eine Methinkette (—CH = CH—)„ verbundenPyrazoline compound of the general formula is linked to a methine chain (—CH = CH—) “ sein können.could be. . 5 2. Pyrazolinverbindungen zur Ausführung des. 5 2. Pyrazoline compounds for carrying out the Verfahrens nach Anspruch 1, dadurch gekenn -Method according to claim 1, characterized in that - 2 zeichnet, daß sie dem photographischen Material 2 records that they are the photographic material ■vr- verschiedenfarbige Fluoreszenzeffekte erteilen.■ give different colored fluorescence effects. CH2^-C-R'CH 2 ^ -C-R ' R In Betracht gezogene Druckschriften:R Publications considered: zugesetzt wird, in der R, R' und R" unsubsti- USA.-Patentschriften Nr. is added in which R, R 'and R "unsubstituted U.S. Pat. No. 2 6'49 375, 2 653 873.2,649,375, 2,653,873. © 709509/354 5.57© 709509/354 5.57
DES44940A 1954-08-04 1955-07-27 Method for distinguishing between different types of raw films Pending DE1008569B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT772916X 1954-08-04

Publications (1)

Publication Number Publication Date
DE1008569B true DE1008569B (en) 1957-05-16

Family

ID=11316186

Family Applications (1)

Application Number Title Priority Date Filing Date
DES44940A Pending DE1008569B (en) 1954-08-04 1955-07-27 Method for distinguishing between different types of raw films

Country Status (3)

Country Link
DE (1) DE1008569B (en)
FR (2) FR1128788A (en)
GB (2) GB772916A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3378389A (en) * 1962-03-31 1968-04-16 Bayer Ag 1, 3-diphenyl pyrazolines and method for brightening synthetic material therewith

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2649375A (en) * 1950-10-26 1953-08-18 Eastman Kodak Co Light-sensitive photographic element
US2653873A (en) * 1951-08-17 1953-09-29 Eastman Kodak Co Light-sensitive photographic element

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2649375A (en) * 1950-10-26 1953-08-18 Eastman Kodak Co Light-sensitive photographic element
US2653873A (en) * 1951-08-17 1953-09-29 Eastman Kodak Co Light-sensitive photographic element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3378389A (en) * 1962-03-31 1968-04-16 Bayer Ag 1, 3-diphenyl pyrazolines and method for brightening synthetic material therewith

Also Published As

Publication number Publication date
GB772916A (en) 1957-04-17
GB816026A (en) 1959-07-08
FR71553E (en) 1960-01-05
FR1128788A (en) 1957-01-10

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