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1. WO1996002868 - USE OF FREQUENCY-MODULATED SCREENING FOR LIGHTENING OFFSET PRINTING SURFACES

Publication Number WO/1996/002868
Publication Date 01.02.1996
International Application No. PCT/FR1995/000936
International Filing Date 12.07.1995
Chapter 2 Demand Filed 31.01.1996
IPC
B41M 1/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
1Inking and printing with a printer's forme
06Lithographic printing
08Dry printing
G03F 5/00 2006.01
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
5Screening processes; Screens therefor
G03F 5/22 2006.01
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
5Screening processes; Screens therefor
22combining several screens; Elimination of moire
G03F 5/24 2006.01
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
5Screening processes; Screens therefor
24by multiple exposure, e.g. combined processes for line photo and screen
H04N 1/405 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
1Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
40Picture signal circuits
405Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
CPC
B41M 1/08
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING,
1Inking and printing with a printer's forme
06Lithographic printing
08Dry printing
G03F 5/00
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR;
5Screening processes; Screens therefor
G03F 5/22
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR;
5Screening processes; Screens therefor
22combining several screens; Elimination of moiré
G03F 5/24
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR;
5Screening processes; Screens therefor
24by multiple exposure, e.g. combined processes for line photo and screen
H04N 1/4051
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
1Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
40Picture signal circuits
405Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
4051producing a dispersed dots halftone pattern, the dots having substantially the same size
Applicants
  • NOUEL, Jean-Marie [FR/FR]; FR
Inventors
  • NOUEL, Jean-Marie; FR
Agents
  • LE ROUX, Martine ; Cabinet Beau de Loménie 158, rue de l'Université F-75340 Paris Cédex 07, FR
Priority Data
94/0872613.07.1994FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) USE OF FREQUENCY-MODULATED SCREENING FOR LIGHTENING OFFSET PRINTING SURFACES
(FR) UTILISATION DU TRAMAGE A MODULATION DE FREQUENCE POUR ALLEGER EN OFFSET LES SURFACES IMPRIMANTES
Abstract
(EN)
The use of frequency-modulated or stochastic screening for lightening wet or waterless offset printing surfaces is disclosed. Films and plates which are used in such printing processes and which typically generate lighter printing surfaces by means of stochastic (or frequency-modulated) screening, are also disclosed.
(FR)
La présente invention a pour objet l'utilisation du tramage à modulation de fréquence ou tramage stochastique pour alléger les surfaces imprimantes, en techniques d'impression offset sec ou offset humide. Elle a également pour objet les films et plaques, utilisés dans ces techniques d'impression qui, de façon caractéristique, génèrent des surfaces imprimantes allégées selon un tramage stochastique (ou tramage à modulation de fréquence).
Other related publications
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