DE381551C - Process for developing copies from diazo anhydrides - Google Patents

Process for developing copies from diazo anhydrides

Info

Publication number
DE381551C
DE381551C DEK75371D DEK0075371D DE381551C DE 381551 C DE381551 C DE 381551C DE K75371 D DEK75371 D DE K75371D DE K0075371 D DEK0075371 D DE K0075371D DE 381551 C DE381551 C DE 381551C
Authority
DE
Germany
Prior art keywords
diazo
anhydrides
exposed
positive
developed
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
DEK75371D
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.)
Kalle GmbH and Co KG
Original Assignee
Kalle GmbH and Co KG
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 Kalle GmbH and Co KG filed Critical Kalle GmbH and Co KG
Priority to DEK75371D priority Critical patent/DE381551C/en
Application granted granted Critical
Publication of DE381551C publication Critical patent/DE381551C/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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/18—Diazo-type processes, e.g. thermal development, or agents therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Description

Entwicklungsverfahren für Kopien aus Diazoanhydriden. Im Patent 376385 ist gezeigt worden, daß sich von positiven Bildern unmittelbar positive Lichtpausen (oder aus negativen Bildern negative Pausen) in der Weise herstellen lassen, daß man Diazoanhydride auf eine geeignete Unterlage aufträgt, die Schicht unter der Vorlage belichtet und alsdann das Bild durch Einführung in ein Bad von Phenolen oder Aminen entwickelt. Als Diazoanhydride werden die Diazoverbindungen der i -:2- oder 2 - z-Aminooxynaphthaline oder deren Derivate oder solche von heterozyklischen Verbindungen verwendet.Process for developing copies from diazo anhydrides. In patent 376385 it has been shown that positive blueprints immediately result from positive images (or negative pauses from negative images) in such a way that one applies diazoanhydrides to a suitable surface, the layer under the The original is exposed and then the image is introduced into a bath of phenols or amines developed. The diazo compounds of the i -: 2- or 2 - z-aminooxynaphthalenes or their derivatives or those of heterocyclic ones Connections used.

Es ist nun gefunden worden, daß man auch mit den im Hauptpatent beschriebenen lichtempfindlichen Schichten Positive aus einem Positiv in der Weise herstellen kann, daß man die lichtempfindliche Schicht -nach dem Belichten durch die Vorlage hindurch noch einige Zeit ohne die Vorlage dem freien Licht aussetzt und die Schicht alsdann mit einem Alkali entwickelt.It has now been found that one can also do with those described in the main patent Light-sensitive layers create positive from a positive in the same way can that you the photosensitive layer -after exposure through the original through it for some time without the template exposed to free light and the layer then developed with an alkali.

Beispiel. Der Träger für die lichtempfindliche Schicht, z. B. Papier, wird mit einer Lösung aus der z-Diazo-2-oxynaphthalin-d.-sulfosäure bestrichen und getrocknet. Die so erhaltene lichtempfindliche Schicht wird unter einem Positiv belichtet. Nachdem die Stellen, an ' denen das Licht Durchgang hatte, ausgebleicht sind, wird die Vorlage entfernt und das Bild noch kurze Zeit an freiem Licht ohne die Kopiervorlage belichtet. Dadurch entsteht an den Stellen, die beim Kopieren unter der Vorlage nicht belichtet waren, d. h. an den Stellen, wo sich die Zeichnung des Positivs befand, eine Substanz, die sich in alkalischer Lösung sofort mit der noch unveränderten Diazoverhindung, die sich an den dunklen Stellen befand, zu einem Farbstoff vereinigt.Example. The support for the photosensitive layer, e.g. B. paper, is coated with a solution of the z-diazo-2-oxynaphthalene-d.-sulfonic acid and dried. The photosensitive layer thus obtained becomes under a positive exposed. After the places where the light had passed through, bleached out the original is removed and the image is exposed to free light for a short time the master is exposed. This creates in the places that are copied were not exposed under the original, d. H. in the places where the drawing is of the positive, a substance which in alkaline solution immediately reacts with the still unchanged diazo compound, which was in the dark places, into one Dye combined.

Aus diesem Grunde entstehen auch sehr kräftige Bilder, wenn man die Kopie in vollem Sonnenlicht oder elektrischem Licht in alkalischer Lösung entwickelt.For this reason, very powerful images are created when you use the Copy developed in full sunlight or electric light in alkaline solution.

Zu diesem Verfahren können alle ausbleichenden Diazoanhydride verwendet werden.All bleaching diazo anhydrides can be used for this process will.

Die Bilder können nachträglich getönt werden.The images can be tinted afterwards.

Claims (1)

PATENT-ANsPRUcT3: Verfahren zur Herstellung von Lichtpausen nach Patent 376385:, dadurch gekennzeichnet, daß man die aus Diazoanhydriden bestehenden lichtempfindlichen Schichten nach dem Belichten noch einige Zeit frei weiterbelichtet und dann entwickelt oder in vollem Licht entwickelt.PATENT CLAIM3: Process for the production of blueprints according to patent 376385 :, characterized in that the light-sensitive consisting of diazo anhydrides Layers freely exposed for some time after exposure and then developed or developed in full light.
DEK75371D 1920-11-29 1920-11-30 Process for developing copies from diazo anhydrides Expired DE381551C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK75371D DE381551C (en) 1920-11-29 1920-11-30 Process for developing copies from diazo anhydrides

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEK0075371 1920-11-29
DEK75371D DE381551C (en) 1920-11-29 1920-11-30 Process for developing copies from diazo anhydrides

Publications (1)

Publication Number Publication Date
DE381551C true DE381551C (en) 1923-09-21

Family

ID=25984434

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK75371D Expired DE381551C (en) 1920-11-29 1920-11-30 Process for developing copies from diazo anhydrides

Country Status (1)

Country Link
DE (1) DE381551C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE887731C (en) * 1938-11-19 1953-08-27 Anciens Etablissements Salvado Process for making positive copies of positive originals using diazo compounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE887731C (en) * 1938-11-19 1953-08-27 Anciens Etablissements Salvado Process for making positive copies of positive originals using diazo compounds

Similar Documents

Publication Publication Date Title
DE552434C (en) Process for avoiding air spots in the image layers of photographic materials during treatment in baths of all kinds
DE381551C (en) Process for developing copies from diazo anhydrides
DE493834C (en) Process for enhancing and coloring images
DE379998C (en) Process for the production of light-sensitive, copyable layers
DE382975C (en) Process for the creation of images
DE470088C (en) Process for the production of photosensitive layers on any type of substrate using diazo compounds of aminonaphthol derivatives
DE499481C (en) Process for the production of two or more color photographic images
DE530445C (en) Method of taking direct positive photographs
DE593964C (en) Process for the production of copies from an original of any kind and using intermediate copies
DE825349C (en) Process for the direct production of positives
DE509762C (en) Process for making reflex copies
DE624534C (en) Method of fixing dye images
AT17701B (en) Method and plate for making color photographs and photomechanical prints.
DE430134C (en) Process for the production of light-printable line drawings by engraving in an originally light-sensitive layer
DE485298C (en) Process for the production of light-sensitive layers
DE636971C (en) Process for making photocopies and blueprints
DE391052C (en) Photographic emulsion and process for making the same
DE488017C (en) Photosensitive paper giving positive images by the amine development process
GB365742A (en) Improvements in or relating to developing, tinting, toning and washing cinematograph films
DE901495C (en) Photographic process for patterning textiles
AT156682B (en) Process for generating contrasts by means of a diazonium compound and layers suitable for this.
AT128857B (en) Process for the production of light-sensitive layers.
AT146335B (en) Process for the production of direct positives for autotype purposes from a line or halftone original.
AT59821B (en) Process for vignetting photographs.
DE473445C (en) Process for making photocopies and blueprints