EP 1251011 B1 20060607 - Method for varying full-tone colour density in offset printing inside a rotation printing machine
Title (en)
Method for varying full-tone colour density in offset printing inside a rotation printing machine
Title (de)
Verfahren zum Variieren der Farbdichte des Volltons beim Offset-Druck innerhalb einer Rotationsdruckmaschine
Title (fr)
Méthode pour varier la densité en pleine teinte des couleurs pour l'impression offset dans une machine d'impression rotative
Publication
Application
Priority
DE 10119368 A 20010420
Abstract (en)
[origin: EP1251011A2] The method involves using a color application system that can provide a constant color quantity, and a binary illustration of a printing form. A base raster of grid points is produced for area-variable image information on the printing form to define the area coverage. A fine micro-raster is placed under the base raster so that the area coverage of the base raster is reduced by a variable percentage between 0% and 100%.
IPC 8 full level
B41M 1/00 (2006.01); B41C 1/05 (2006.01); B41C 1/10 (2006.01); B41F 33/00 (2006.01); B41M 1/04 (2006.01); B41M 1/06 (2006.01); B41M 1/10 (2006.01)
CPC (source: EP US)
B41C 1/05 (2013.01 - EP US); B41C 1/10 (2013.01 - EP US); B41F 33/0027 (2013.01 - EP US); B41M 1/00 (2013.01 - EP US); B41M 1/04 (2013.01 - EP US); B41M 1/06 (2013.01 - EP US); B41M 1/10 (2013.01 - EP US); B41N 1/12 (2013.01 - EP); B41P 2233/51 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB LI
DOCDB simple family (publication)
EP 1251011 A2 20021023; EP 1251011 A3 20031210; EP 1251011 B1 20060607; CA 2382338 A1 20021020; CA 2382338 C 20070619; DE 10119368 A1 20021121; DE 10119368 B4 20040909; DE 50207059 D1 20060720; US 2002152911 A1 20021024; US 6701847 B2 20040309
DOCDB simple family (application)
EP 02008377 A 20020412; CA 2382338 A 20020418; DE 10119368 A 20010420; DE 50207059 T 20020412; US 12254002 A 20020415