Screen printing process using rotated screens

Details Screen printing process using rotated screens Screen printing process using rotated screens

1996-09-03

1999-09-21

Yan, Ren

Printing

Stenciling

Processes

101115, B41M 112

Patent

active

059539887

ABSTRACT:
The screen printing process together with halftoning techniques for reproducing continuous tone color images has given considerable moire problems. Interferences between the halftoning technique and the screens, and the subsequent screens may be alleviated by appropriate orientation of the screens with respect to each other. Preferentially a frequency modulation halftoning technique is used for halftoning the color components.

REFERENCES:
patent: 4939991 (1990-07-01), Szarka
patent: 4965599 (1990-10-01), Roddy et al.
patent: 5394252 (1995-02-01), Holladay et al.
European Search Report for EP 95202467 Mar. 1996.
Translation of DT 1,803,707; Halftone Screen Set of Printing Plates for Moire-free Duotone and Multi-Color Printing; Apr. 18, 1969; 7 pages.

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