Printing – Multicolor – Processes
Patent
1996-03-15
1997-05-27
Eickholt, Eugene H.
Printing
Multicolor
Processes
101248, 101487, 34446, B41M 114, B41F 522
Patent
active
056322011
ABSTRACT:
A process for correcting misregistration between imprinted images from successive printing stations comprising measuring the width of the imprinted image of each station and comparing the width to determine any difference, and creating a correction signal if a difference does exist to change the humidity in the web passing through the printing unit. The device includes photoelectric devices for determining the width of each image created at each station, an electronic device for comparing the width of each image and, if a difference exists, creating an error signal which is applied to the first drying unit and a secondary error signal applied to the second unit to correct the humidity of the web leaving each dryer.
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patent: 5195435 (1993-03-01), Morrone et al.
patent: 5361960 (1994-11-01), Fokos et al.
Bobst SA
Eickholt Eugene H.
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