DE495761C - Process for producing partial screen negatives for multi-color printing - Google Patents

Process for producing partial screen negatives for multi-color printing

Info

Publication number
DE495761C
DE495761C DED55685D DED0055685D DE495761C DE 495761 C DE495761 C DE 495761C DE D55685 D DED55685 D DE D55685D DE D0055685 D DED0055685 D DE D0055685D DE 495761 C DE495761 C DE 495761C
Authority
DE
Germany
Prior art keywords
color
color printing
partial screen
negatives
same time
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
DED55685D
Other languages
German (de)
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 DED55685D priority Critical patent/DE495761C/en
Application granted granted Critical
Publication of DE495761C publication Critical patent/DE495761C/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
    • G03F5/00—Screening processes; Screens therefor
    • G03F5/22—Screening processes; Screens therefor combining several screens; Elimination of moiré

Landscapes

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

Description

Verfahren, Teilrasternegative für den Mehrfarbendruck herzustellen Zusatz zum Patent 494 372 In dem Hauptpatent 494 372 wird ein Verfahren beschrieben, mit dem man durch Kopieren nach einer farbiger. Naturaufnahme Teilrasternegative herstellt. Es wurde dabei schon auf die Schwierigkeit der Retusche solcher Rasternegative hingewiesen. Diese Schwierigkeiten werden aber auf folgende Weise völlig behoben.Method of producing partial raster negatives for multicolor printing Addendum to Patent 494 372 In the main patent 494 372 a method is described with which one can copy after a colored. Nature photograph produces partial raster negatives. The difficulty of retouching such halftone negatives has already been pointed out. However, these difficulties are completely eliminated in the following way.

Für jede Teilaufnahme wird auf einer durchsichtigen Folie mit der Hand eine Maske hergestellt, die an den besonders gefährdeten Teilen mehr oder weniger durchsichtige Stellen aufweist. Beispielsweise zeigt die Rotplatte in der Regel an den grünen Stellen eine zu geringe Deckung, so daß auf dem uriretuschierten Druck die grüne Farbe durch das Rot unterdrückt wird. An diesen Stellen darf die Maske also keine Deckung haben. Das Rasternegativ wird sodann gemäß dem Hauptpatent hergestellt, indem man das farbige Diapositiv unter gleichzeitiger Vorschalturig von Skalenraster und grünem Filter kopiert. Das farbige Diapositiv -evtl. auch der Farbenfilter - wird darauf entfernt und hierfür die Maske vorgeschaltet. Dadurch überlegen sich die grünen Stellen mit einem Netz und können so auf der Atzplatte ohne Effektätzung spitz geätzt werden. Man kann natürlich statt der Maske allein auch Maske und Farbendiapositiv zusammen vorschalten. Dieselbe Manipulation wird -wenigstens für den Rotationsfarbendruck -zweckmäßig auch bei den anderen Teilnegativen vorgenommen, indem also die komplementären Farben ungedeckt bleiben. Besondere Wirkungen werden erzielt, wenn man die Retusche der Masken mit einer Farbe ausführt, die in der Durchsicht den Pinselstrich sehen läßt. Es entsteht dann ein farbiges Bild, das aquarellähnliche Wirkung hat. Bei Verwendung von trockenen Stiften kann man gleicherweise den Charakter einer Zeichnung hervorrufen.For each partial recording, the Hand made a mask that more or less on the particularly vulnerable parts has transparent areas. For example, the red plate usually shows too little coverage in the green areas, so that on the original retouched print the green color is suppressed by the red. The mask may be used in these places so have no cover. The screen negative is then produced according to the main patent, by placing the colored slide with a scale grid at the same time and green filter. The colored slide -possibly. also the color filter - is then removed and the mask is connected upstream for this. This makes you think about it the green areas with a net and can be on the etched plate without effect etching be etched to a point. You can of course also use a mask and color slide instead of the mask alone upstream together. The same manipulation is used - at least for rotary color printing - It was also expedient to make the other partial negatives by adding the complementary ones Colors remain uncovered. Special effects are achieved when you do the retouching who performs masks with a color that can be seen in the transparency of the brushstroke leaves. The result is a colored picture that has a watercolor-like effect. at Using dry pencils one can alike the character of a drawing cause.

Derartige Masken leisten auch beim indirekten Verfahren gute Dienste.Such masks also serve well in the indirect method.

Claims (3)

PATENTANSPRÜCHE: r. Verfahren gemäß Hauptpatent 494 372 Teilrasternegative für den Mehrfarbendruck herzustellen, dadurch gekennzeichnet, daß Farbendiapositive zuerst zugleich mit Filtern und Skalenrastern und sodann unter Fortlassung der Farbendiapositiv e retuschierte Maskenfolien zugleich mit Filtern und Skalenrastern bzw. Skalenrastern allein oder in umgekehrter Reihenfolge kopiert werden. PATENT CLAIMS: r. Process according to main patent 494 372 partial screen negatives for multi-color printing, characterized in that color slides first at the same time with filters and scale grids and then omitting the color slides e retouched masking foils at the same time with filters and scale grids or scale grids copied alone or in reverse order. 2. Verfahren nach Anspruch r, dadurch gekennzeichnet, daß die Kopierung der Maskenfolien zugleich mit der Kopierung der Farbendiapositive geschieht. 2. The method according to claim r, characterized in that the copying of the masking foils at the same time as the copying the color slide happens. 3. Verfahren nach Anspruch z, dadurch gekennzeichnet, daß die Maskenfolien eine Deckung erhalten, die aquarellmäßigen oder zeichnerischen Charakter trägt.3. The method according to claim z, characterized in that that the masking foils get a coverage, the watercolor-like or graphic Character wears.
DED55685D 1928-05-07 1928-05-08 Process for producing partial screen negatives for multi-color printing Expired DE495761C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED55685D DE495761C (en) 1928-05-07 1928-05-08 Process for producing partial screen negatives for multi-color printing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DED0055685 1928-05-07
DED55685D DE495761C (en) 1928-05-07 1928-05-08 Process for producing partial screen negatives for multi-color printing

Publications (1)

Publication Number Publication Date
DE495761C true DE495761C (en) 1933-08-26

Family

ID=25972627

Family Applications (1)

Application Number Title Priority Date Filing Date
DED55685D Expired DE495761C (en) 1928-05-07 1928-05-08 Process for producing partial screen negatives for multi-color printing

Country Status (1)

Country Link
DE (1) DE495761C (en)

Cited By (2)

* 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
DE965615C (en) * 1955-07-18 1957-06-13 Agfa Ag Fuer Photofabrikation Process for the production of color value corrected photographic images and / or of color masks

Cited By (2)

* 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
DE965615C (en) * 1955-07-18 1957-06-13 Agfa Ag Fuer Photofabrikation Process for the production of color value corrected photographic images and / or of color masks

Similar Documents

Publication Publication Date Title
DE495761C (en) Process for producing partial screen negatives for multi-color printing
DE678234C (en) Process for the photomechanical production of color-correct partial color etchings for letterpress printing using thin-fluid, quick-drying, completely translucent colors
DE559685C (en) Process to produce tinted and rasterized partial plates for multi-color printing
DE560467C (en) Process for reproducing wood grains on hard objects
DE456889C (en) Process for the production of gravure forms on plates or cylinders
DE748520C (en) Process for the photomechanical change, correction or addition of master copies, in particular partial color negatives
DE522338C (en) Process for the production of printing forms
DE506414C (en) Process for the production of prints, in particular maps with precisely stepped halftone colors
DE562572C (en) Process for producing partial screen negatives for multi-color printing
DE650152C (en) Process for the production of master copies with sharp edges for photomechanical purposes
DE654096C (en) Process for the production of printing plates
DE864809C (en) Photomechanical production of gravure forms
DE531130C (en) Process for the production of printing, transfer printing and copying raster slides
DE462413C (en) Process for the production of screened slides for gravure forms
DE509027C (en) Process for the production of paper color grids with regular grid elements
AT204572B (en) Process for the production of positive transfer films for printing rollers for textile printing
DE568183C (en) Process for making raster copies
DE452538C (en) Process for the production of negatives or positives with the correct color value for the direct copying process onto the machine printing plate using copier machines or pneumatic copying frames by breaking down a colored original into color-filtered negatives produced photographically with a grid
DE162770C (en)
DE457654C (en) Process for making autotypes by copying
DE345576C (en) Process for the production of halftone transparencies in colors
DE101379C (en)
DE714174C (en) Process for producing corrected partial color extracts from color slides for reproduction purposes
DE443648C (en) Process for the production of grain and line screen negatives and positives, which can be used at the same time as pressure plates for single and multi-color printing to coordinate the overall print
DE592003C (en) Process for the production of negatives or transparencies, in particular partial negatives for color reproduction