DE408097C - Photochemical production of printing forms using photosensitized resins - Google Patents

Photochemical production of printing forms using photosensitized resins

Info

Publication number
DE408097C
DE408097C DED43261D DED0043261D DE408097C DE 408097 C DE408097 C DE 408097C DE D43261 D DED43261 D DE D43261D DE D0043261 D DED0043261 D DE D0043261D DE 408097 C DE408097 C DE 408097C
Authority
DE
Germany
Prior art keywords
resins
photosensitized
printing forms
photochemical production
production
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
DED43261D
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DED43261D priority Critical patent/DE408097C/en
Application granted granted Critical
Publication of DE408097C publication Critical patent/DE408097C/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
    • G03F7/038—Macromolecular compounds which are rendered insoluble or differentially wettable

Landscapes

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

Description

Photochemische Herstellung von Druckformen unter Verwendung lichtempfindlich gemachter Harze. Das vorliegende Verfahren bezieht sich auf die photochemischen Verfahren, bei denen man Harzschichten mit lichtempfindlichen Stoffen unter einem Negativ der Einwirkung des Lichtes aussetzt und dann mit Alkalien oder organischen Flüssigkeiten entwickelt. Das vorliegende Verfahren besteht darin, daB man als Harze diejenigen Phenolforrraldehydharze verwendet, welche in Alkohol löslich sind und durch Erhitzen in unlösliche unschmelzbare Produkte übergeführt werden können (siehe deutsche Patentschrift 228639 und 28145t1). Nach der Entwicklung wird bei gewöhnlichem oder erhöhtem Druck (siehe deutsche Patentschrift 2,33803) gehärtet. Hierdurch erhält man eine gegen Alkalien, Säuren oder organische Lösungsmittel besonders widerstandsfähige Reproduktion, so daB auch die Ätzung und Fertigstellung der Druckformen sicherer verläuft.Photochemical production of printing forms using photosensitized resins. The present process relates to the photochemical processes in which resin layers containing photosensitive substances are exposed to the action of light under a negative and then developed with alkalis or organic liquids. The present process consists in using the phenol formaldehyde resins which are soluble in alcohol and which can be converted into insoluble, infusible products by heating (see German patents 228639 and 28145t1). After development, hardening is carried out at normal or increased pressure (see German patent specification 2,33803) . This results in a reproduction that is particularly resistant to alkalis, acids or organic solvents, so that the etching and finishing of the printing forms are also more reliable.

Zur Stabilisierung der Harze können insbesondere Bichromate, dreifach chromsaure Alkalien, gegebenenfalls unter Zusatz reduzierender Säuren und Salze, z. B. Ameisensäure, unterschwefligsaurer, schweflig-unterphosphorig- und phosphorigsaurer Salze, Ouecksilberchromat, Ouecksilberchlorid, Kupferbromid, Kobaltnitrat, Eisenoxydsalze, ATanganioxalat u. dgl. verwendet werden.To stabilize the resins, bichromates, in particular, can be used threefold chromic alkalis, if necessary with the addition of reducing acids and salts, z. B. formic acid, hyposulphurous, sulphurous-hypophosphorous and phosphorous Salts, silver chromate, silver chloride, copper bromide, cobalt nitrate, iron oxide salts, ATanganioxalate and the like can be used.

Claims (1)

PATENTANSPRUCH: Photochemisches Verfahren zur Herstellung von Druckformen unter Verwendung lichtempfindlich gemachter Harze, dadurch gekennzeichnet, daß man als Harze in Alkohol lösliche, durch Erhitzen unschmelzbar werdende Phenolfor maldehydharze verwendet und dieselben nach der Belichtung und Entwicklung durch Erhitzen in bekannter Weise unlöslich macht. Claim: Photochemical process for the production of printing forms using photosensitized resins, characterized in that the resins used are phenol formaldehyde resins which are soluble in alcohol and become infusible by heating and which make them insoluble by heating in a known manner after exposure and development.
DED43261D 1921-07-29 1921-07-30 Photochemical production of printing forms using photosensitized resins Expired DE408097C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED43261D DE408097C (en) 1921-07-29 1921-07-30 Photochemical production of printing forms using photosensitized resins

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE183817T 1921-07-29
DED43261D DE408097C (en) 1921-07-29 1921-07-30 Photochemical production of printing forms using photosensitized resins

Publications (1)

Publication Number Publication Date
DE408097C true DE408097C (en) 1925-01-02

Family

ID=31947322

Family Applications (1)

Application Number Title Priority Date Filing Date
DED43261D Expired DE408097C (en) 1921-07-29 1921-07-30 Photochemical production of printing forms using photosensitized resins

Country Status (1)

Country Link
DE (1) DE408097C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2574258A (en) * 1948-04-26 1951-11-06 Warren S D Co Light-sensitive compositions and plates for photolithography
US2624672A (en) * 1948-03-01 1953-01-06 Warren S D Co Photosensitive printing plate having a light-sensitive coating consisting of a colloid, a phosphate, and a chromium compound
US2624673A (en) * 1948-03-01 1953-01-06 Warren S D Co Photosensitive printing plate having a light-sensitive coating consisting of a nonprotein colloid, a phosphate, and a chromium compound
DE1222372B (en) * 1952-11-29 1966-08-04 Philips Nv Process for the photomechanical surface treatment of objects with the exception of those printing forms in which a tanning image is used as the printing image layer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2624672A (en) * 1948-03-01 1953-01-06 Warren S D Co Photosensitive printing plate having a light-sensitive coating consisting of a colloid, a phosphate, and a chromium compound
US2624673A (en) * 1948-03-01 1953-01-06 Warren S D Co Photosensitive printing plate having a light-sensitive coating consisting of a nonprotein colloid, a phosphate, and a chromium compound
US2574258A (en) * 1948-04-26 1951-11-06 Warren S D Co Light-sensitive compositions and plates for photolithography
DE1222372B (en) * 1952-11-29 1966-08-04 Philips Nv Process for the photomechanical surface treatment of objects with the exception of those printing forms in which a tanning image is used as the printing image layer

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