DE417338C - Process for the production of celluloid printing forms with the aid of a chromate gelatin layer - Google Patents

Process for the production of celluloid printing forms with the aid of a chromate gelatin layer

Info

Publication number
DE417338C
DE417338C DED43777D DED0043777D DE417338C DE 417338 C DE417338 C DE 417338C DE D43777 D DED43777 D DE D43777D DE D0043777 D DED0043777 D DE D0043777D DE 417338 C DE417338 C DE 417338C
Authority
DE
Germany
Prior art keywords
celluloid
production
printing forms
gelatin layer
aid
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
DED43777D
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.)
RENCK RAPID KLISCHEE ANSTALTEN
Original Assignee
RENCK RAPID KLISCHEE ANSTALTEN
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 RENCK RAPID KLISCHEE ANSTALTEN filed Critical RENCK RAPID KLISCHEE ANSTALTEN
Priority to DED43777D priority Critical patent/DE417338C/en
Priority to GB1394224A priority patent/GB217246A/en
Application granted granted Critical
Publication of DE417338C publication Critical patent/DE417338C/en
Expired legal-status Critical Current

Links

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
    • G03F7/04—Chromates

Landscapes

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

Description

DEUTSCHES REICHGERMAN EMPIRE

AUSGEGEBEN AM
ti. FEBRUAR 1926ISSUED ON
ti. FEBRUARY 1926

REICHSPATENTAMTREICH PATENT OFFICE

PATENTSCHRIFTPATENT LETTERING

KLASSE 57d GRUPPECLASS 57d GROUP

(D 43777 VIj57 d)(D 43777 VIj 57 d)

Patentiert im Deutschen Reiche vom 9. Juni 1923 ab.Patented in the German Empire on June 9, 1923.

Die Erfindung betrifft die photochemische Herstellung von Druckformen auf Celluloid. Die Herstellung von Druckformen aus Celluloid ist durch die Patentschrift 116252 bekannt. Ebenso ist durch die Patentschrift 132696 ein Verfahren zur Herstellung von Celluloiddruckformen bekannt, nach welchem auf mit einer Chrornatleimschicht überzogenen Celluloidplatten mittels Licht Zeichnungen kopiert und sodann das Celluloid an den durch Entwicklung freigelegten Stellen der Chromatschicht durch Lösungsmittel gelöst wird.The invention relates to the photochemical production of printing forms on celluloid. The production of printing forms from celluloid is supported by patent specification 116252 known. Likewise, by the patent 132696 a method for the production of Celluloid printing forms known, after which on coated with a chromate glue layer Celluloid plates copied by means of light drawings and then the celluloid to the by developing exposed areas of the chromate layer dissolved by solvents will.

Nach diesem Verfahren können aber Druckformen in einwandfreier Forin nicht hergestellt werden. Durch die Lösung des Celluloids mit Hilfe eines Celluloidlösungsmittels verliert die durch den Belichtungsprozeß in der Gelatineschicht hervorgerufene ZeichnungHowever, printing forms in perfect form cannot be produced using this process will. By dissolving the celluloid with the aid of a celluloid solvent, the in the drawing caused by the gelatin layer

ao ihren Halt. Die Folge davon ist, daß die aufkopierten Striche oder Punkte sich neigen oder sich verziehen oder sich verbiegen, so daß dadurch kein brauchbarer Druckstock erzielt werden kann.ao their hold. The consequence of this is that the lines or dots that are copied on are inclined or warp or bend, so that this does not result in a usable printing block can be.

Nach der Erfindung wird in folgender Weise eine brauchbare Druckform erhalten: Man erweicht, bevor man die Chromatgelatine aufbringt, das Celluloid mit einem geeigneten, Eisessig enthaltenden Lösungsmittel für Celluloid an der Oberfläche breiartig, läßt sodann auf diesen Brei verflüssigte, mit Eisessig und Glyzerin versetzte Gelatine fließen, so daß die Gelatine sich mit dem Celluloid zu einem innigen Gemenge verbindet, das rasch erstarrt.According to the invention, a usable printing form is obtained in the following way: Before applying the chromate gelatin, soften the celluloid with a suitable, Solvent containing glacial acetic acid for celluloid pulpy on the surface, then lets liquid gelatin mixed with glacial acetic acid and glycerine flow onto this pulp, so that the gelatin combines with the celluloid to form an intimate mixture that quickly solidified.

Diese Gelatineschicht wird chromiert und auf sie dann in der üblichen Weise mit Hilfe des photographischen Verfahrens eine Zeichnung mit oder ohne Raster kopiert und darauf mit geeigneten Lösungsmitteln für die unbelichtete Gelatine und dann mit solchen für Celluloid hintereinander behandelt.This gelatin layer is chromed and then using it in the usual way of the photographic process a drawing with or without a grid is copied and placed on it with suitable solvents for the unexposed gelatin and then with those for Celluloid treated in a row.

Durch dieses Verfahren wird erreicht, daß die unbelichteten Teile der Gelatine entfernt werden, während die belichteten Teile der Gelatine gleichzeitig mit ihrer Unterlage, bestehend aus Celluloid in inniger Verbindung mit Gelatine, durch diese Lösungsmittel nicht angegriffen werden, sondern in dem Zustande verbleiben, in dem sie sich nach der Chromierung und nach dem Kopierprozeß befanden. Nur dergestalt behandelte Bilder ergeben nach Angabe der Erfinderin einen für die Praxis brauchbaren Druckstock.This process ensures that the unexposed parts of the gelatin are removed while the exposed parts of the gelatin exist at the same time as their base made of celluloid in intimate contact with gelatin, but not by these solvents are attacked, but remain in the state in which they were after the chromium plating and found after the copying process. According to the inventor, only images treated in this way result in one for the Practice usable printing block.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zur Herstellung von Celluloiddruckformen mit Hilfe einer Chromatgelatineschicht, dadurch gekennzeichnet, daß das Celluloid mit Eisessig enthaltenden Lösungsmitteln oberflächlich breiartig erweicht und dann mit einer ebenfalls Eisessig und dazu Glyzerin enthaltenden wäßrigen Gelatineschicht überzogen wird, die nach dem Erstarren chromiert, belichtet, zuerst mit Lösungsmitteln für die unbelichtete Gelatine und darauf mit Celluloidlösungsmitteln behandelt wird.Process for the production of celluloid printing forms with the help of a chromate gelatin layer, characterized in that the celluloid is softened on the surface with solvents containing glacial acetic acid and then with a likewise glacial acetic acid and to this end, an aqueous gelatin layer containing glycerine is coated which, after solidification, is chromed, exposed, first with solvents for the unexposed gelatin and then with celluloid solvents is treated.
DED43777D 1923-06-09 1923-06-09 Process for the production of celluloid printing forms with the aid of a chromate gelatin layer Expired DE417338C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DED43777D DE417338C (en) 1923-06-09 1923-06-09 Process for the production of celluloid printing forms with the aid of a chromate gelatin layer
GB1394224A GB217246A (en) 1923-06-09 1924-06-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED43777D DE417338C (en) 1923-06-09 1923-06-09 Process for the production of celluloid printing forms with the aid of a chromate gelatin layer

Publications (1)

Publication Number Publication Date
DE417338C true DE417338C (en) 1925-08-11

Family

ID=7047852

Family Applications (1)

Application Number Title Priority Date Filing Date
DED43777D Expired DE417338C (en) 1923-06-09 1923-06-09 Process for the production of celluloid printing forms with the aid of a chromate gelatin layer

Country Status (2)

Country Link
DE (1) DE417338C (en)
GB (1) GB217246A (en)

Also Published As

Publication number Publication date
GB217246A (en) 1925-02-05

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