DE737755C - Process for the production of wash-out reliefs reproducing writing or dash-dot drawings from halogen silver gelatin layers - Google Patents

Process for the production of wash-out reliefs reproducing writing or dash-dot drawings from halogen silver gelatin layers

Info

Publication number
DE737755C
DE737755C DEH162843D DEH0162843D DE737755C DE 737755 C DE737755 C DE 737755C DE H162843 D DEH162843 D DE H162843D DE H0162843 D DEH0162843 D DE H0162843D DE 737755 C DE737755 C DE 737755C
Authority
DE
Germany
Prior art keywords
wash
dash
production
halogen silver
silver gelatin
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
DEH162843D
Other languages
German (de)
Inventor
Walter Simon
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.)
Axalta Coating Systems Germany GmbH and Co KG
Original Assignee
Dr Kurt Herberts and Co GmbH
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 Dr Kurt Herberts and Co GmbH filed Critical Dr Kurt Herberts and Co GmbH
Priority to DEH162843D priority Critical patent/DE737755C/en
Application granted granted Critical
Publication of DE737755C publication Critical patent/DE737755C/en
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/06—Silver salts

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)

Description

Verfahren zum Herstellen von Schrift bzw. Strich-Punkt-Zeichnungen wiedergebenden Auswaschreliefs aus Halogensilbergelatineschichten . Die Herstellung von Reliefs. auf photomechanischem Wege mittels Halogensilbergelatineschichten erfolgt bisher durch Gerbentwickler in Gegenwart von Alkalien. Die dabei .erhaltenen Aulswaschreliefs haben die unangenehme Eigenschaft, beim Trocknen der Bildschicht sich auch an den höchsten Stellen auf die ursprüngliche Dicke der Gelatine zusammenzuziehen. Das nach dem Trocknen verbliebene Relief ist daher außerordentlich flach und für den Zweck der Abprägimg in anderen Stoffen unbrauchbar. Man hat deshalb für derartige Prägefolien Bichrornatleimschichben verwendet, die vor allen Dingeni infolge ihrer sehr geringen Lichtempfindlichkeit für die Zwecke, bei denen es auf rasches Arbeiten ankommt, in der Praxis keilten Eingang finden konnten.Process for the production of writing or dash-dot drawings reproducing wash-out reliefs made of halogen silver gelatin layers. The production of reliefs. takes place photomechanically by means of halogen silver gelatin layers so far by tanning developer in the presence of alkalis. The basin reliefs preserved have the unpleasant property that when the image layer dries, they also adhere to the to contract the highest points to the original thickness of the gelatin. That Relief left after drying is therefore extremely flat and for the Purpose of imprinting in other materials useless. One therefore has for such Embossing foils Bichrornatleimschichben used, especially as a result of their very low photosensitivity for purposes where there is a need for rapid work arrives, could find wedged entrance in practice.

Es lvurde gefunden, daß man für Tiefdruckformenauch Halogensilberschichten verwenden kann, deren Schichtdicke dem handelsüblichen Material entspricht und die trotzdem genügend hohe Reliefs gehen, um sich in plastischen oder thermoplastischen Massen abformen zu lassen, «enn man ,einen an sich. bekannten Gerbentwickler verwendet, der ein. lösliches Quecksilbersalz enthält. Vorzugsweise enthält der Entwickler lösliche Mercurisalze, .die mit den gleichfalls. in dem Entwickler vorhandenen Alkalicarbonaten keine Fällungen ergeben, da anscheinend der organische Gerbstoff, wie z. B. Pyrogallol oder Brenzkatechin,eine Fällung verhindert.It has been found that halogen silver layers can also be used for gravure forms can use whose layer thickness corresponds to the commercially available material and which anyway high enough reliefs are going to be plastic or thermoplastic To have masses molded, if you have one in yourself. known tanning developer used, the one. contains soluble mercury salt. Preferably the developer contains soluble mercury salts, those with the likewise. alkali carbonates present in the developer no precipitations result, since apparently the organic tanning agent such. B. pyrogallol or catechol, prevents precipitation.

Das ,erhaltene Relief dient zum Prägen von Tiefdruckformen aus plastischen oder thermoplastischen Massen.The relief obtained is used for embossing gravure forms made of plastic or thermoplastic masses.

Durch die Erfindung wird ,erreicht, daß man für Repro,duktlonszwecke die- hohe Lichtempfindlichkeit der Halogensilbergelatineschichten ausnutzen kann, wodurch es gelingt, Abprägeverfahren auch auf Gebieten anzuwenden, in denen diese bisher aus zeitlichen Gründen keinen Eingang finden konnten.By the invention is achieved that one for repro, duktlonszwecke take advantage of the high light sensitivity of the halogen silver gelatin layers, which makes it possible to apply embossing processes also in areas in which these so far could not find an entrance due to time constraints.

Die im Entwickler enthaltenen geringen Mengen Quecksilbersalz bewirken neben .dem Nichtzwrückgehen des Reliefs beim Trocknen eine zusätzliche Härtung der Gelatine, die sich natürlich nur auf .die Bildstellen erstreckt, wodurch erst die Brauchbarkeit für die Abprägung, die immer unter einem gewissen Druck erfolgen muß, sichergestellt ist. Statt Mercurichlorid können auch andere lösliche Quecksilbersalze, wie das Acetat, Zitrat usw., verwendet werden.The small amounts of mercury salt contained in the developer have an effect In addition to the fact that the relief does not go back on, additional hardening of the Gelatin, which of course only extends to the image areas, which means first the usefulness for imprinting, which always take place under a certain pressure must be ensured. Instead of mercury chloride, other soluble mercury salts, such as the acetate, citrate, etc., can be used.

Beispiel i Ein Diapositivfilm des Handels wird nach der Belichtung in folgendem Entwickler behandelt 8 g Pyr ogallol, 40 g Soda, 4oo ccm Wasser, o,5 g Mercarichlorid. Beispiel a 6 g Brenzkatechin, 40 g Soda, 400 ccm Wasser, o,5 g Mercuriacetat. Nach Beendigung der Entwicklung wird durch Waschen mit heißem Wasser das Auswaschnelief hergestellt.Example i A commercial slide film is used after exposure Treated in the following developer 8 g of pyr ogallol, 40 g of soda, 400 ccm of water, 0.5 g mercarichloride. Example a 6 g pyrocatechol, 40 g soda, 400 ccm water, 0.5 g Mercuric acetate. After the development is finished, wash with hot water the washout made deep.

Das Relief wird nach dem Trocknen in eine plastische oder thermoplastische Masse, die unter ioo° C erweicht, etwa einem Gemisch aus einem Celluloseäther, wie Bencylcellulose. Cumaronharz, einem Weichmacher und einem Füllmittel abgeprägt und die erhaltene Druckform zur Vervielfältigung verwendet.The relief turns into a plastic or thermoplastic after drying Mass that softens below 100 ° C, such as a mixture of a cellulose ether, such as Bencyl cellulose. Coumarone resin, a plasticizer and a filler and embossed the printing form obtained is used for reproduction.

Claims (1)

PATENTANSPRUCH: Verfahren zum Herstellen von Schrift bzw. Strich-Punkt-Zeichnungen wiedergebenden Auswaschreliefs aus Halogensilbergelatineschichten für das Prägen von Tiefdruckformen, dadurch gekennzeichnet, daß die belichtete Halogensilbergelatineschicht mit einem ein lösliches Mercurisalz enthaltenden Gerbentwickler von sonst bekannter Zusammensetzung behandelt wird.PATENT CLAIM: Process for producing writing or dash-dot drawings reproducing wash-out reliefs made of halogen silver gelatin layers for embossing of gravure forms, characterized in that the exposed halogen silver gelatin layer with a tanning developer containing a soluble mercury salt from otherwise known Composition is treated.
DEH162843D 1940-07-23 1940-07-24 Process for the production of wash-out reliefs reproducing writing or dash-dot drawings from halogen silver gelatin layers Expired DE737755C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH162843D DE737755C (en) 1940-07-23 1940-07-24 Process for the production of wash-out reliefs reproducing writing or dash-dot drawings from halogen silver gelatin layers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEH0162843 1940-07-23
DEH162843D DE737755C (en) 1940-07-23 1940-07-24 Process for the production of wash-out reliefs reproducing writing or dash-dot drawings from halogen silver gelatin layers

Publications (1)

Publication Number Publication Date
DE737755C true DE737755C (en) 1943-07-22

Family

ID=25981127

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH162843D Expired DE737755C (en) 1940-07-23 1940-07-24 Process for the production of wash-out reliefs reproducing writing or dash-dot drawings from halogen silver gelatin layers

Country Status (1)

Country Link
DE (1) DE737755C (en)

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