DE687033C - Process for making photographic papers - Google Patents

Process for making photographic papers

Info

Publication number
DE687033C
DE687033C DE1937I0059671 DEI0059671D DE687033C DE 687033 C DE687033 C DE 687033C DE 1937I0059671 DE1937I0059671 DE 1937I0059671 DE I0059671 D DEI0059671 D DE I0059671D DE 687033 C DE687033 C DE 687033C
Authority
DE
Germany
Prior art keywords
photographic
baths
papers
photographic papers
making photographic
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
DE1937I0059671
Other languages
German (de)
Inventor
Dr Julius Knoefel
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 DE1937I0059671 priority Critical patent/DE687033C/en
Application granted granted Critical
Publication of DE687033C publication Critical patent/DE687033C/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
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/31—Plasticisers
    • 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
    • G03C1/775—Photosensitive materials characterised by the base or auxiliary layers the base being of paper

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)

Description

Verfahren zur Herstellung photographischer Papiere Bekanntlich kann man den verschiedenen Schichten photographischer Papiere zwecks Verbesserung ihrer Geschmeidigkeit und des Flachliegens sowie zur Vermeidung der Brüchigkeit als Weichmacher wirkende, in Wasser lösliche Substanzen, wie Glycerin, Stärkesirup, sulfuriertes Rizinusöl o. dgl., zusetzen.Process for making photographic papers is known to be able to one of the various layers of photographic papers in order to improve them Suppleness and lying flat as well as to avoid brittleness as a plasticizer active substances soluble in water, such as glycerine, starch syrup, sulfurized Add castor oil or the like.

Diese Weichmacher haben aber den Nachteil, daß sie infolge ihrer Wasserlöslichkeit in den photographischen Bädern während der Verarbeitung wieder ausgewaschen werden und deshalb ihre Wirkung nur bis zur Verarbeitung der Photopapiere, nicht aber mehr in den fertig verarbeiteten photographischen Bildern ausüben können.However, these plasticizers have the disadvantage that they are water-soluble because of their solubility in water washed out again in the photographic baths during processing and therefore their effect only up to the processing of the photographic paper, but no more can exercise in the finished photographic images.

Es ist auch bereits bekannt, dem photographischen Papier nach Fertigstellung von neuem die in: den Bädern ausgewaschenen Zusätze zur Erhöhung der Geschmeidigkeit usw. einzuverleiben. Dieses Verfahren bietet jedoch die Nachteile, daß besondere Bäder notwendig sind, was für den Verbraucher eine Erschwerung in der Verarbeitung bedeutet, und daß die Papiere in den Bädern selbst nicht geschmeidig sind.It is also already known to the photographic paper after completion again the additives washed out in the baths to increase the suppleness etc. to be incorporated. However, this method has the disadvantages that particular Baths are necessary, which makes processing difficult for the consumer means, and that the papers in the baths themselves are not pliable.

Man hat daher bereits nach anderen Weichmachern gesucht, die, wie beispielsweise Dispersionen von Wachs, der photographischen. Emulsion zugesetzt und infolge ihrer Unlöslichkeit in den photographischen Bädern nicht ausgewaschen werden. Bei der Herstellung dieser Dispersionen besteht aber sehr oft die Gefahr, daß das dispergierte Korn, wenn es zu groß ausfällt, einen Mattierungseffekt hervorruft, der bei den sogenannten Glanzpapieren den Oberflächenglanz in unerwünschter Weise herabsetzt.One has therefore already looked for other plasticizers that, like for example dispersions of wax, the photographic. Emulsion added and not washed out due to their insolubility in photographic baths will. In the production of these dispersions, however, there is very often the risk of that the dispersed grain, if it is too large, causes a matting effect, which in the so-called glossy papers the surface gloss in an undesirable way belittles.

Erfindungsgemäß wird nun sowohl ein Auswaschen des Weichmachers in den photographischen Bädern als auch eine Störung des Oberflächenglanzes durch Verwendung von Metallseifen der sulfurierten Rizinusöle vermieden.According to the invention, both a washing out of the plasticizer in the photographic Baths as well as a disturbance of the surface gloss Avoided by using metal soaps of sulfurized castor oils.

Beispielsweise ist das sulfurierte R ; Usöl, im Handel als Monopol-Brillant-öl (@@ono-Pol-Brillant-01«, eingetragenes Warenzeichen) bekannt, ein Weichmacher für gelatinehaltige Schichten, der aber in den photographischen Bädern löslich ist. Die Calciumseife des sulfurierten Rizinusöls ist dagegen in den photographischen Bädern nicht löslich und begünstigt die Geschmeidigkeit und das Flachliegen der photographischen Papiere in hervorragender Weise. Auch die Brüchigkeit der Papiere ist erheblich verbessert. Ein ähnliches Verhalten zeigen beispielsweise die entsprechenden Magnesium-, Aluminium- und Bariumseifen des Monopol-Brillant-Öls (»Monqpol-Brillant-O1«, eingetragenes Warenzeichen).For example, the sulfurized R; Usöl, commercially available as monopoly brilliant oil (@@ ono-Pol-Brillant-01 «, registered trademark) known, a plasticizer for gelatin-containing layers, but which is soluble in photographic baths. The calcium soap of sulfurized castor oil, on the other hand, is in the photographic Baths are not soluble and favors the suppleness and the flat lying of the photographic papers in an excellent manner. Also the brittleness of the papers is vastly improved. The corresponding behavior, for example, shows a similar behavior Magnesium, aluminum and barium soaps from Monopoly Brillant Oil ("Monqpol-Brillant-O1", registered trademark).

Die Seifen werden in fein verteilter Form in die Schichten eingebracht oder auch in diesen selbst erzeugt. Sie können der Emulsion, der Barytage, dem Papierrohstoff oder irgendeiner anderen Schicht oder auch mehreren oder sämtlichen Schichten zugesetzt werden.The soaps are introduced into the layers in finely divided form or even generated in these themselves. You can use the emulsion, the baryage, the paper raw material or to any other layer or to several or all of the layers will.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung photographischer Papiere, dadurch gekennzeichnet, daB man einer; mehreren oder sämtlichen Schichten eines Photopapiers eine in den photographischen Bädern nicht lösliche Metallseife eines sulfurierten Rizinusöls zusetzt.PATENT CLAIM: Process for the production of photographic paper, characterized in that one; several or all layers of one Photographic paper a metal soap that is insoluble in photographic baths sulfurized castor oil added.
DE1937I0059671 1937-11-21 1937-11-21 Process for making photographic papers Expired DE687033C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1937I0059671 DE687033C (en) 1937-11-21 1937-11-21 Process for making photographic papers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1937I0059671 DE687033C (en) 1937-11-21 1937-11-21 Process for making photographic papers

Publications (1)

Publication Number Publication Date
DE687033C true DE687033C (en) 1940-01-20

Family

ID=7195064

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1937I0059671 Expired DE687033C (en) 1937-11-21 1937-11-21 Process for making photographic papers

Country Status (1)

Country Link
DE (1) DE687033C (en)

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