GB348162A - Process for the production of photo-mechanical printing surfaces - Google Patents

Process for the production of photo-mechanical printing surfaces

Info

Publication number
GB348162A
GB348162A GB3399429A GB3399429A GB348162A GB 348162 A GB348162 A GB 348162A GB 3399429 A GB3399429 A GB 3399429A GB 3399429 A GB3399429 A GB 3399429A GB 348162 A GB348162 A GB 348162A
Authority
GB
United Kingdom
Prior art keywords
colloid
photo
mechanical printing
alcohol
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
GB3399429A
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.)
Meisenbach Riffarth & Co
Original Assignee
Meisenbach Riffarth & Co
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 Meisenbach Riffarth & Co filed Critical Meisenbach Riffarth & Co
Priority to GB3399429A priority Critical patent/GB348162A/en
Publication of GB348162A publication Critical patent/GB348162A/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)
  • Materials For Photolithography (AREA)

Abstract

348,162. Photo-mechanical printing- surfaces. GEE, H. T. P., 51, Chancery Lane, London.-(Meisenbaeh Riffarth & Co., Akt.-Ges. ; 7, Hofmannstrasse, Munich, Germany.) Nov. 7, 1929, No. 33994. [Class 98 (ii).] To remove the last traces of unexposed colloid, in the process of producing photo-mechanical printing-surfaces by exposing to light a layer of bichromated colloid on a metal plate and washing away the unexposed colloid, the surface is treated with a mixture of a dehydrating medium, such as alcohol, and nitric acid. The alcohol hardens the exposed colloid and the acid attacks the metal, the completion of the process being made apparent by a change in colour of the picture.
GB3399429A 1929-11-07 1929-11-07 Process for the production of photo-mechanical printing surfaces Expired GB348162A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3399429A GB348162A (en) 1929-11-07 1929-11-07 Process for the production of photo-mechanical printing surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3399429A GB348162A (en) 1929-11-07 1929-11-07 Process for the production of photo-mechanical printing surfaces

Publications (1)

Publication Number Publication Date
GB348162A true GB348162A (en) 1931-05-07

Family

ID=10360025

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3399429A Expired GB348162A (en) 1929-11-07 1929-11-07 Process for the production of photo-mechanical printing surfaces

Country Status (1)

Country Link
GB (1) GB348162A (en)

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