GB183923A - Improvements in and relating to photographic methods of producing stencils - Google Patents

Improvements in and relating to photographic methods of producing stencils

Info

Publication number
GB183923A
GB183923A GB1242521A GB1242521A GB183923A GB 183923 A GB183923 A GB 183923A GB 1242521 A GB1242521 A GB 1242521A GB 1242521 A GB1242521 A GB 1242521A GB 183923 A GB183923 A GB 183923A
Authority
GB
United Kingdom
Prior art keywords
albumen
varnish
gelatine
bichromate
coated
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
GB1242521A
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 GB1242521A priority Critical patent/GB183923A/en
Publication of GB183923A publication Critical patent/GB183923A/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
    • G03F7/12—Production of screen printing forms or similar printing forms, e.g. stencils

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printing Methods (AREA)

Abstract

183,923. Carter, M. J. D. April 30, 1921. No Patent granted (Sealing fee not paid). Stencils.-Consists in means for producing a photographic stencil for use with water ink duplicators, in which dental or Yoshino paper, silk, or other thin and open fabric, before being coated with sensitized gelatine or albumen, is coated with varnish to render the stencil waterproof. A thin layer of gelatine mixed with one quarter its weight of bichromate of potash, or a similar layer of albumen and bichromate of ammonia, is applied to one side of the varnished sheet and dried in a dark room. The sheet is exposed under a positive in sunlight, and developed in cold or lukewarm water, which dissolves out the unexposed gelatine or albumen. The varnish thus exposed is then removed by treatment with a solvent, such as methylated spirit, in such a way as to leave the covered varnish intact.
GB1242521A 1921-04-30 1921-04-30 Improvements in and relating to photographic methods of producing stencils Expired GB183923A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1242521A GB183923A (en) 1921-04-30 1921-04-30 Improvements in and relating to photographic methods of producing stencils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1242521A GB183923A (en) 1921-04-30 1921-04-30 Improvements in and relating to photographic methods of producing stencils

Publications (1)

Publication Number Publication Date
GB183923A true GB183923A (en) 1922-07-31

Family

ID=10004356

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1242521A Expired GB183923A (en) 1921-04-30 1921-04-30 Improvements in and relating to photographic methods of producing stencils

Country Status (1)

Country Link
GB (1) GB183923A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545032A1 (en) * 1991-12-06 1993-06-09 Ti-Kun Hung Printing screen plate making process and the device therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545032A1 (en) * 1991-12-06 1993-06-09 Ti-Kun Hung Printing screen plate making process and the device therefor

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