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GB449772A - Improvements relating to plates for use in the production of "deep-etch" lithographicprinting plates - Google Patents

Improvements relating to plates for use in the production of "deep-etch" lithographicprinting plates

Info

Publication number
GB449772A
GB449772A GB16835A GB16835A GB449772A GB 449772 A GB449772 A GB 449772A GB 16835 A GB16835 A GB 16835A GB 16835 A GB16835 A GB 16835A GB 449772 A GB449772 A GB 449772A
Authority
GB
United Kingdom
Prior art keywords
ferric
colloid
plates
deep
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
GB16835A
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.)
Morland & Impey Ltd
Original Assignee
Morland & Impey Ltd
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 Morland & Impey Ltd filed Critical Morland & Impey Ltd
Priority to GB16835A priority Critical patent/GB449772A/en
Priority to FR799065D priority patent/FR799065A/en
Publication of GB449772A publication Critical patent/GB449772A/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)

Abstract

449,772. Photo-mechanical printing- surfaces. MORLAND & IMPEY, Ltd., and RENDALL, A. G., Kalamazoo Works, Mill Lane, Northfield, Birmingham. Jan. 2, 1935, No. 168. [Class 98 (ii)] Deep-etch lithographic printing-plates are prepared by exposing to light a colloid surface impregnated with a water-soluble organic ferric salt which renders the colloid insoluble but allows the colloid to return to the soluble state when exposed to light. A zinc or aluminium support is coated with a layer of gelatin and bathed in a solution of ferric tartrate. The plate is then exposed under a negative and developed with water to which glycerine or calcium chloride may be added to restrain the solvent action. The plate is then etched with aqueous or alcoholic ferric chloride. If desired, the development and etching may be carried out simultaneously using aqueous ferric chloride. In place of ferric tartrate, ferric ammonium citrate may be used and the gelatin may be replaced by gum, glue, or albumen. The colloid may be uniformly hardened with formaldehyde before use and may be tinted with an organic dye.
GB16835A 1935-01-02 1935-01-02 Improvements relating to plates for use in the production of "deep-etch" lithographicprinting plates Expired GB449772A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB16835A GB449772A (en) 1935-01-02 1935-01-02 Improvements relating to plates for use in the production of "deep-etch" lithographicprinting plates
FR799065D FR799065A (en) 1935-01-02 1935-12-12 Improvements to plates for printing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16835A GB449772A (en) 1935-01-02 1935-01-02 Improvements relating to plates for use in the production of "deep-etch" lithographicprinting plates

Publications (1)

Publication Number Publication Date
GB449772A true GB449772A (en) 1936-07-02

Family

ID=9699598

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16835A Expired GB449772A (en) 1935-01-02 1935-01-02 Improvements relating to plates for use in the production of "deep-etch" lithographicprinting plates

Country Status (2)

Country Link
FR (1) FR799065A (en)
GB (1) GB449772A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759820A (en) * 1950-01-24 1956-08-21 Azoplate Corp Light-sensitive material for photomechanical printing
US3118765A (en) * 1960-08-26 1964-01-21 Litho Chemical And Supply Co I Lithographic product comprising lightsensitive diazido stilbene sulfonic acid salt
US3169065A (en) * 1960-10-11 1965-02-09 Harris Intertype Corp Method of making resist and deep etch lithographic printing plates with ferric ammonium compound sensitized plates

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759820A (en) * 1950-01-24 1956-08-21 Azoplate Corp Light-sensitive material for photomechanical printing
US3118765A (en) * 1960-08-26 1964-01-21 Litho Chemical And Supply Co I Lithographic product comprising lightsensitive diazido stilbene sulfonic acid salt
US3169065A (en) * 1960-10-11 1965-02-09 Harris Intertype Corp Method of making resist and deep etch lithographic printing plates with ferric ammonium compound sensitized plates

Also Published As

Publication number Publication date
FR799065A (en) 1936-06-05

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