DE492856C - Process for the production of photosensitive layers by means of diazo compounds - Google Patents

Process for the production of photosensitive layers by means of diazo compounds

Info

Publication number
DE492856C
DE492856C DEF67862D DEF0067862D DE492856C DE 492856 C DE492856 C DE 492856C DE F67862 D DEF67862 D DE F67862D DE F0067862 D DEF0067862 D DE F0067862D DE 492856 C DE492856 C DE 492856C
Authority
DE
Germany
Prior art keywords
production
diazo compounds
photosensitive layers
photosensitive
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
DEF67862D
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.)
LE FILM OZAPHANE SA
Original Assignee
LE FILM OZAPHANE SA
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 LE FILM OZAPHANE SA filed Critical LE FILM OZAPHANE SA
Application granted granted Critical
Publication of DE492856C publication Critical patent/DE492856C/en
Expired legal-status Critical Current

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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
    • G03C1/52Compositions containing diazo 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)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Description

Es ist bekannt, lichtempfindliche Papiere herzustellen, indem man auf die Oberfläche eines entsprechend geleimten bzw. gelatinierten Papiers eine wäßrige Lösung eines lichtempfindlichen Produktes bringt, z. B. eine Lösung, enthaltend eine Diazokomponente und ein Phenol. Auch wenn man sehr schnell arbeitet, z. B. den Überfluß der lichtempfindlichen Lösung sofort entfernt und rasch trocknet, dringt die Lösung tief in das Papier ein. Die so präparierten Papiere sind, ebenso wie Ferroprussiatpapiere, nur beschränkt anwendbar, z. B. zur Reproduktion von Strichzeichnungen, da sie photographische Bilder mit Halbtönen nur unvollkommen wiedergeben. Auch bei der Verwendung von Barytpapieren ergeben sich Schwierigkeiten, da die lichtempfindliche Lösung in das Barytpapier, welches porös ist, stark eindringt.It is known to produce photosensitive papers by touching the surface an appropriately sized or gelatinized paper, an aqueous solution of a photosensitive Product brings, z. B. a solution containing a diazo component and a phenol. Even if you go very quickly works, e.g. B. removed the excess of photosensitive solution immediately and quickly dries, the solution penetrates deep into the paper. The papers prepared in this way are, as well such as ferroprussiate papers, only applicable to a limited extent, e.g. B. to reproduce line drawings, since they reproduce photographic images with halftones only imperfectly. Difficulties also arise when using baryta papers because the light-sensitive solution penetrates strongly into the baryta paper, which is porous.

Es wurde nun gefunden, daß man Bilder mit ausgezeichneter photographischer Gradation auf beliebigen Unterlagen erhält, wenn man Papiere mit Gelatineschichten oder anderen Unterlagen kolloider Art, wie z. B. Gellulosehydrathäutchen, mit Diazoverbindungen in einer Lösung von leicht flüchtigen Lösungsmitteln, wie z. B. Alkohol oder Aceton, aufbringt. Nach Verdunsten der Flüssigkeit befindet sich der lichtempfindliche Stoff an der Oberfläche des Kolloids, das nicht Zeit hat, nennenswert zu quellen.It has now been found that images with excellent photographic gradation can be obtained on any kind of documents, if you have papers with layers of gelatin or other Colloidal documents such as B. cellulose hydrate membranes, with diazo compounds in a solution of volatile solvents, such as. B. alcohol or acetone applies. After the liquid has evaporated, the photosensitive substance is on the surface of the colloid, which does not take time has to swell appreciably.

Der Gebrauch eines Bades mit flüchtigen Lösungsmitteln hat den Vorteil, den empfindlichen Stoff an der Oberfläche des Kolloides, z. B. der Gelatine, zu lokalisieren, wodurch der ungünstige Einfluß, der durch die Grundmasse entsteht, vermieden wird. Ein besonderer Vorteil des Verfahrens besteht darin, daß sich die alkoholische Lösung gleichmäßig auf der Oberfläche des Kolloides verteilt.Using a bath with volatile solvents has the advantage of protecting the sensitive Substance on the surface of the colloid, e.g. B. the gelatin to localize, whereby the unfavorable influence caused by the matrix is avoided. A special The advantage of the process is that the alcoholic solution is uniform distributed on the surface of the colloid.

Weiterhin ist es infolge der sehr raschen Trocknung des empfindlichen Materials möglich, viel schärfere Bilder zu bekommen, als wenn die ganze Masse lichtempfindlich gemacht wird mittels einer wäßrigen Lösung, die die ganze Celluloseunterläge zur Quellung bringt. Das ist besonders wichtig für durchsichtige Cellulosefilme für die Projektion.Furthermore, due to the very rapid drying of the sensitive material, it is possible To get much sharper pictures than if the whole mass was made photosensitive is swollen by means of an aqueous solution that swells the entire cellulose base brings. This is especially important for clear cellulose films for projection.

Wenn man dem Papier ein mattes Äußere geben will, so muß man in die Gelatineschicht eine gewisse Menge eines fein pulverisierten unlösbaren Stoffes geben, z. B. Kaolin. Zweckmäßig nimmt man 250 g Kaolin für 1 kg Gelatine. Dieser kleine Zusatz macht die Gelatineschicht nicht porös, wie der Zusatz von Bariumsulfat bei Barytpapier.If you want to give the paper a matt appearance, you have to go into the gelatin layer give a certain amount of a finely powdered insoluble substance, e.g. B. kaolin. Appropriate one takes 250 g of kaolin for 1 kg of gelatin. This little addition makes the gelatin layer non-porous, like the addition of barium sulfate to baryta paper.

Die Menge des flüchtigen Lösungsmittels kann weitgehend variiert werden; so z. B. be-The amount of volatile solvent can be varied widely; so z. B. loading

kommt man noch genügend gute Ergebnisse mit 40 ecm Alkohol und 60 ecm Wasser. Es ist wichtig, daß das flüchtige Lösungsmittel sich homogen mit wenigstens einer kleinen Menge Wasser mischen läßt, da Wasser eine Hauptrolle beim Eindringen des lichtempfindlichen Materials in das Kolloid spielt. Beim vollständigen Fehlen von Wasser würde sich der empfindliche Körper auf der äußeren Oberfläche der Kolloidschicht ablagern, was ohne jeden praktischen Wert ist.you can still get enough good results with 40 ecm alcohol and 60 ecm water. It It is important that the volatile solvent is homogeneous with at least a small one Lets a lot of water mix as water plays a major role in penetrating the photosensitive Material plays into the colloid. In the complete absence of water, the sensitive body would be on the outside Deposit the surface of the colloid layer, which is of no practical value.

Dieser Prozeß ist also wesentlich anders wie die bisher bekannte Darstellungsweise der photographischen Papiere und lichtempfindliehen Häutchen, zu deren Darstellung man eine empfindlichmachende Lösung anwendet, die einen lichtempfindlichen, meistens unlöslichen Körper und ein Kolloid, wie Gelatine oder Nitrocellulose, enthält.This process is therefore essentially different from the previously known method of representation of the photographic papers and light-sensitive membranes to represent them uses a sensitizing solution that is light-sensitive, mostly insoluble Body and a colloid such as gelatin or nitrocellulose.

B eispielExample

Man streicht eine 8prozentige Gelatinelösung auf eine Unterlage, läßt trocknen und trägt als lichtempfindliche Schicht- eine Lösung, enthaltend 70 ecm Äthylalkohol, 30 ecm Wasser, 0,7 g chlorierte i-Diazo-2-oxynaphthalin-4-sulfosäure, 0,3 g 'Resorcin und 1 g Nikkelchlorür, auf die Unterlage auf.An 8 percent gelatin solution is spread on a base, left to dry and carries as a light-sensitive layer a solution containing 70 ecm ethyl alcohol, 30 ecm Water, 0.7 g chlorinated i-diazo-2-oxynaphthalene-4-sulfonic acid, 0.3 g of resorcinol and 1 g of nickel chloride, on the pad.

Claims (1)

Patentanspruch:Claim: Verfahren zur Herstellung von lichtempfindlichen Schichten mittels Diazoverbindungen, dadurch gekennzeichnet, daß die lichtempfindlichen Stoffe in einem Gemisch, bestehend aus einem flüchtigen Lösungsmittel und Wasser, gelöst und auf eine beliebige Kolloidschicht aufgetragen werden.Process for the production of photosensitive layers by means of diazo compounds, characterized in that the photosensitive substances are in a mixture consisting of a volatile solvent and water, can be dissolved and applied to any colloid layer.
DEF67862D 1928-09-04 1929-02-22 Process for the production of photosensitive layers by means of diazo compounds Expired DE492856C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR492856X 1928-09-04

Publications (1)

Publication Number Publication Date
DE492856C true DE492856C (en) 1930-03-01

Family

ID=8904583

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF67862D Expired DE492856C (en) 1928-09-04 1929-02-22 Process for the production of photosensitive layers by means of diazo compounds

Country Status (4)

Country Link
DE (1) DE492856C (en)
FR (1) FR673765A (en)
GB (1) GB318511A (en)
NL (1) NL24741C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1079454B (en) * 1954-09-15 1960-04-07 Ozalid Co Ltd Diazotype copying material and process for making the same
DE1083650B (en) * 1955-12-15 1960-06-15 Ozalid Co Ltd Diazo type copying material and process for making same

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2591309A (en) * 1945-11-10 1952-04-01 Gen Aniline & Film Corp Photographically sensitive diazotype element
US2603564A (en) * 1948-09-21 1952-07-15 Gen Aniline & Film Corp Light sensitive diazotype layer containing a white opacifying pigment
BE513762A (en) * 1951-07-18
US2699392A (en) * 1951-12-12 1955-01-11 Gen Aniline & Film Corp Vesicular prints and process of making same
US2709655A (en) * 1952-06-28 1955-05-31 Gen Aniline & Film Corp Diazotype photoprinting material
US2908572A (en) * 1955-12-28 1959-10-13 Gen Aniline & Film Corp Vesicular prints and process of making same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1079454B (en) * 1954-09-15 1960-04-07 Ozalid Co Ltd Diazotype copying material and process for making the same
DE1083650B (en) * 1955-12-15 1960-06-15 Ozalid Co Ltd Diazo type copying material and process for making same

Also Published As

Publication number Publication date
GB318511A (en) 1930-08-07
NL24741C (en)
FR673765A (en) 1930-01-20

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