DE584562C - Callitypy layer - Google Patents

Callitypy layer

Info

Publication number
DE584562C
DE584562C DEW89536D DEW0089536D DE584562C DE 584562 C DE584562 C DE 584562C DE W89536 D DEW89536 D DE W89536D DE W0089536 D DEW0089536 D DE W0089536D DE 584562 C DE584562 C DE 584562C
Authority
DE
Germany
Prior art keywords
lecithin
layer
callitypy
nitrocellulose
solution
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
DEW89536D
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.)
ELISABETH WOLTER
Original Assignee
ELISABETH WOLTER
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 ELISABETH WOLTER filed Critical ELISABETH WOLTER
Priority to DEW89536D priority Critical patent/DE584562C/en
Application granted granted Critical
Publication of DE584562C publication Critical patent/DE584562C/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
    • G03C1/64—Compositions containing iron compounds as photosensitive substances

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

Description

Kallitypieschicht Dias vorliegende Verfahren zeigt eine neuartige Herstellungsart für Kallitypien und ähnliche Schichten.Kallitypieschicht The present method shows a novel Production method for call types and similar layers.

Man löst i o g Lecithin in i oö ccm Amylacetat und setzt t g Cellulosenitrat zu. In diese Lösung bringt man 9 g Ferrichlorid (kriställinisch) ein. Sobald das Eisensalz gelöst ist, werden 5 g Oxalsäure (kristallinisch) zugefügt. Nach starkem, Rühren setzt sich die ,anfänglich gelöste Oxalsäure auf dem Boden :ab, und wird der überschuß mittels Filters zurückgewonnen, nämlich jener üblerschuß, der nicht mehr notwendig ist, um das Eisenoxalat zu bilden. Nach dem Auftrocknen der Schicht wird belichtet und, wie üb- lich, in einer 2%igen Silbernitratlösung, die schwach alkalisch sein muß, entwickelt. Fixiert wird in seiner 2%igen Natriumthiogulfat-Lösung.Iog lecithin is dissolved in 100 cc amyl acetate and tg cellulose nitrate is added. 9 g of ferric chloride (crystalline) are introduced into this solution. As soon as the iron salt has dissolved, 5 g of oxalic acid (crystalline) are added. After vigorous stirring, the initially dissolved oxalic acid settles on the bottom, and the excess is recovered by means of a filter, namely the excess that is no longer necessary to form the iron oxalate. After the layer has dried , it is exposed to light and, as usual, developed in a 2% silver nitrate solution, which must be weakly alkaline. It is fixed in its 2% sodium thiogulphate solution.

Dias Lecithin spielt bei dieser Schicht die Rolle des ZVeichmachungsmittels in der Nitrocellulose, ,ähnlich -wie beim Kollodiumprozeß das Glycerin oder Rizinusöl, nur mit dem Unterschied, daß die Eigenschaft des Lecithins in der vorerwähnten Kombination ein nachträgliches Quellen der Schicht gestattet, wodurch sich noch vorhandene Salze leicht entfernen lassen oder andere Salze investiert werden können, was beim Kollodiumverfahren unmöglich ist. Lecithinphotographen sind selbst gegen Temperaturen von i oo° C unempfindlich, kleben nicht und sind gegen starke Temperaturschwankungen unempfindlich. Außerdem gestattet der Gehalt an Lecithin in der Schicht die Herstellung von Farben und Tönungen, wie sie bei diesen Verfahren bis jetzt ausgeschlossen waren.The lecithin plays the role of the softening agent in this layer in nitrocellulose, similar to glycerine or castor oil in the collodion process, only with the difference that the property of the lecithin in the aforementioned combination a subsequent swelling of the layer is permitted, whereby any salts that are still present are removed Easily removed or other salts can be invested in what happens in the collodion process is impossible. Lecithin photographers are insensitive even to temperatures of 100 ° C, do not stick and are insensitive to strong temperature fluctuations. aside from that the lecithin content in the layer allows the production of colors and tints, as they have been excluded from these proceedings until now.

Claims (2)

PATrNTANRPR"fTCHR'. i. Kallitypieschicht, bestehend aus Lecithin, Nitrocellulose und einem orgaxiisehen Eisensalz. PATrNTANRPR "fTCHR '. I. Kallitypieschicht, consisting of lecithin, Nitrocellulose and an organic iron salt. 2. Verfahren zur Herstellung von KaJlitypieschichten nach Anspruch i, dadurch gekennzeichnet, daß das Lecithin und die Nitrocellulose in Amylacetat gelöst werden und die lichtempfindliche Lösung durch das Aufeinanderwirken .eines Eisensalzes und einer :organischen Säure in der Lecithinnitrocelluloselösung gebildet wird.2. Process for the production of KaJlitypiesheichten according to claim i, characterized in that the lecithin and the nitrocellulose can be dissolved in amyl acetate and the photosensitive solution by the interaction of an iron salt and an organic acid in the Lecithin nitrocellulose solution is formed.
DEW89536D 1932-07-23 1932-07-23 Callitypy layer Expired DE584562C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW89536D DE584562C (en) 1932-07-23 1932-07-23 Callitypy layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW89536D DE584562C (en) 1932-07-23 1932-07-23 Callitypy layer

Publications (1)

Publication Number Publication Date
DE584562C true DE584562C (en) 1933-09-21

Family

ID=7613069

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW89536D Expired DE584562C (en) 1932-07-23 1932-07-23 Callitypy layer

Country Status (1)

Country Link
DE (1) DE584562C (en)

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