FR2347709A1 - Engraving process giving translucent polychromatic images - esp. used in colour printing - Google Patents

Engraving process giving translucent polychromatic images - esp. used in colour printing

Info

Publication number
FR2347709A1
FR2347709A1 FR7610410A FR7610410A FR2347709A1 FR 2347709 A1 FR2347709 A1 FR 2347709A1 FR 7610410 A FR7610410 A FR 7610410A FR 7610410 A FR7610410 A FR 7610410A FR 2347709 A1 FR2347709 A1 FR 2347709A1
Authority
FR
France
Prior art keywords
translucent
monochromatic
polychromatic
image
engraving
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.)
Granted
Application number
FR7610410A
Other languages
French (fr)
Other versions
FR2347709B3 (en
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 FR7610410A priority Critical patent/FR2347709A1/en
Publication of FR2347709A1 publication Critical patent/FR2347709A1/en
Application granted granted Critical
Publication of FR2347709B3 publication Critical patent/FR2347709B3/fr
Granted 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

Abstract

A polychromatic translucent image is obtd by an engraving process using several translucent monochromatic supports, usually films. Each support is a transparent material e.g. polyethylene glycol terephthalate or an acetate, coated on one surface with a layer of coloured material which is selectively removed by a scraping or erasing engraving tool to give a design corresponding to the final image. The engraved monochromatic supports are superimposed to give, by transparency, the polychromatic image. The engraving is carried out when the monochromatic sheet is placed on a luminous surface, possibly on top of other monochromatic sheets. A transparent sheet on which is traced a sketch for use a model can be placed between the sheet and the luminous surface, and adjusted if necessary w.r.t. other intermediate monochromatic sheets. A variety of colour combinations can be produced in the translucent polychromatic image, for use partic. colour printing.
FR7610410A 1976-04-09 1976-04-09 Engraving process giving translucent polychromatic images - esp. used in colour printing Granted FR2347709A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7610410A FR2347709A1 (en) 1976-04-09 1976-04-09 Engraving process giving translucent polychromatic images - esp. used in colour printing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7610410A FR2347709A1 (en) 1976-04-09 1976-04-09 Engraving process giving translucent polychromatic images - esp. used in colour printing

Publications (2)

Publication Number Publication Date
FR2347709A1 true FR2347709A1 (en) 1977-11-04
FR2347709B3 FR2347709B3 (en) 1979-01-05

Family

ID=9171619

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7610410A Granted FR2347709A1 (en) 1976-04-09 1976-04-09 Engraving process giving translucent polychromatic images - esp. used in colour printing

Country Status (1)

Country Link
FR (1) FR2347709A1 (en)

Also Published As

Publication number Publication date
FR2347709B3 (en) 1979-01-05

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Legal Events

Date Code Title Description
ST Notification of lapse