GB412441A - Improvements in and connected with photo-lithographic processes - Google Patents

Improvements in and connected with photo-lithographic processes

Info

Publication number
GB412441A
GB412441A GB24042/33A GB2404233A GB412441A GB 412441 A GB412441 A GB 412441A GB 24042/33 A GB24042/33 A GB 24042/33A GB 2404233 A GB2404233 A GB 2404233A GB 412441 A GB412441 A GB 412441A
Authority
GB
United Kingdom
Prior art keywords
original
zinc
plates
enlargements
enlargement
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
GB24042/33A
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
Publication of GB412441A publication Critical patent/GB412441A/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
    • G03F3/00—Colour separation; Correction of tonal value
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/152—Making camera copy, e.g. mechanical negative

Landscapes

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

Abstract

412,441. Photolithographic processes. HACKETT, W. H., 32, Leeton Avenue, Coogee, and PRYKE, P. W., Burton Street, Lane Cove, both near Sydney, Australia. Aug. 30, 1933, No. 24042. Convention date, Aug. 30, 1932. Drawings to Specification. [Class 98 (ii).] Plates for successive colour printings to obtain a multi-coloured print of an original coloured picture are prepared from the usual " key " drawing indicating the colour components of the original by making a number of separate enlargements upon the grained surfaces of zinc or like metal plates and then marking each of these surfaces with black chalk or ink to form black and white representations of each of the different colour components of the original. Printing plates are obtained from these enlargements by photographic reduction upon other grained zinc or like metal plates from which the printing plates are then formed. Preferably the first enlargement of the key is obtained by photography, copies being obtained for example by transferring on to a zinc surface a dust impression from a dusted ink impression obtained by a pull on paper of the inked first enlargement.
GB24042/33A 1932-08-30 1933-08-30 Improvements in and connected with photo-lithographic processes Expired GB412441A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU412441X 1932-08-30

Publications (1)

Publication Number Publication Date
GB412441A true GB412441A (en) 1934-06-28

Family

ID=3728621

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24042/33A Expired GB412441A (en) 1932-08-30 1933-08-30 Improvements in and connected with photo-lithographic processes

Country Status (4)

Country Link
US (1) US2044429A (en)
BE (1) BE398289A (en)
FR (1) FR772383A (en)
GB (1) GB412441A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2485761A1 (en) * 1980-06-26 1981-12-31 Feau Daniel Method of multi colour printing on to monochrome base - involves using various media, e.g. paint or ink applied by spray or brush to specific areas

Also Published As

Publication number Publication date
BE398289A (en)
FR772383A (en) 1934-10-27
US2044429A (en) 1936-06-16

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