GB238860A - Improved method of making forms for intaglio printing - Google Patents

Improved method of making forms for intaglio printing

Info

Publication number
GB238860A
GB238860A GB18316/25A GB1831625A GB238860A GB 238860 A GB238860 A GB 238860A GB 18316/25 A GB18316/25 A GB 18316/25A GB 1831625 A GB1831625 A GB 1831625A GB 238860 A GB238860 A GB 238860A
Authority
GB
United Kingdom
Prior art keywords
making
diapositives
plates
introduction
intaglio 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
GB18316/25A
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 GB238860A publication Critical patent/GB238860A/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
    • G03F3/10—Checking the colour or tonal value of separation negatives or positives
    • G03F3/107—Checking the colour or tonal value of separation negatives or positives using silver halide photosensitive materials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Printing Methods (AREA)
  • Projection-Type Copiers In General (AREA)

Abstract

238,860. Blecher, C. Aug. 20, 1924, [Convention date]. Photo-mechanical printing-surfaces; coloursensitive and like plates; bichromated colloid and like processes.-In making intaglio printing blocks for high-speed presses the diapositives used are made with suitable gradation and viewed on a white reflecting support. This facilitates inspection and any necessary retouching, as well as a shortening of the time of exposure for the pigment paper on to which the diapositives are printed. In order further to make use of negatives which would give plates of too hard a gradation for reflected light diapositives, the plates are saturated before exposure in a dye (e.g. tartrazine) which can be washed out during development. The described method of making the pigment paper is by emulsification (not the introduction in powder form) of monochromate or dichromate of lead within the gelatin, or by the introduction of barium sulphate, both in relatively sufficient quantities. For making the copy more easily visible on the copper plate, substances of blue or bluish-red tone and of as actinic a nature as possible should be introduced in small quantities.
GB18316/25A 1924-08-20 1925-07-17 Improved method of making forms for intaglio printing Expired GB238860A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0115306 1924-08-20

Publications (1)

Publication Number Publication Date
GB238860A true GB238860A (en) 1925-12-17

Family

ID=6993989

Family Applications (2)

Application Number Title Priority Date Filing Date
GB18316/25A Expired GB238860A (en) 1924-08-20 1925-07-17 Improved method of making forms for intaglio printing
GB18503/25A Expired GB238862A (en) 1924-08-20 1925-07-20 Improved method of securing accurate colour values in colour printing and colour photography

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB18503/25A Expired GB238862A (en) 1924-08-20 1925-07-20 Improved method of securing accurate colour values in colour printing and colour photography

Country Status (4)

Country Link
US (1) US1785997A (en)
FR (1) FR600886A (en)
GB (2) GB238860A (en)
NL (2) NL20249C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2577984A (en) * 1945-11-08 1951-12-11 Warnecke Harry Walter Method of making color printing plates
US3144333A (en) * 1961-01-06 1964-08-11 Robert R Waldherr Photographic color film and the method of use in color printing
US4203360A (en) * 1977-05-05 1980-05-20 Madwed Steven R Method for silk-screen printing

Also Published As

Publication number Publication date
FR600886A (en) 1926-02-17
NL20249C (en)
GB238862A (en) 1926-08-12
NL17979C (en)
US1785997A (en) 1930-12-23

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