GB341028A - Improvements relating to photo-mechanical printing - Google Patents

Improvements relating to photo-mechanical printing

Info

Publication number
GB341028A
GB341028A GB2067929A GB2067929A GB341028A GB 341028 A GB341028 A GB 341028A GB 2067929 A GB2067929 A GB 2067929A GB 2067929 A GB2067929 A GB 2067929A GB 341028 A GB341028 A GB 341028A
Authority
GB
United Kingdom
Prior art keywords
printing
photo
exposures
improvements relating
colour printing
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
GB2067929A
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 GB2067929A priority Critical patent/GB341028A/en
Publication of GB341028A publication Critical patent/GB341028A/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
    • G03F3/04—Colour separation; Correction of tonal value by photographic means

Abstract

341,028. Photo-mechanical printing. DITTMANN, T., 4, Hinter der Kirche, Neumunster, Germany. July 5, 1929, No. 20679. [Class 98 (ii).] The separate images for the colour printing surfaces required for multi-colour printing are obtained from a single photographic image, the required density gradation of each image being obtained by a series of partial exposures through a plurality of different masks used in succession and with different exposures through successive masks. Half-tone screens may be used during the exposures. The single photographic image may be a diapositive and the reproduction thereof effected by contact printing through a half-tone screen. A particular process for three-colour printing is described.
GB2067929A 1929-07-05 1929-07-05 Improvements relating to photo-mechanical printing Expired GB341028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2067929A GB341028A (en) 1929-07-05 1929-07-05 Improvements relating to photo-mechanical printing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2067929A GB341028A (en) 1929-07-05 1929-07-05 Improvements relating to photo-mechanical printing

Publications (1)

Publication Number Publication Date
GB341028A true GB341028A (en) 1931-01-05

Family

ID=10149870

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2067929A Expired GB341028A (en) 1929-07-05 1929-07-05 Improvements relating to photo-mechanical printing

Country Status (1)

Country Link
GB (1) GB341028A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2692825A (en) * 1946-12-14 1954-10-26 Colour Separation Tech Inc Color correcting in photomechanical processes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2692825A (en) * 1946-12-14 1954-10-26 Colour Separation Tech Inc Color correcting in photomechanical processes

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