METHOD AND A SYSTEM FOR THE EXTRAPOLATION OF DENSITOMETRIC MEASURED VALUES IN NOT MEASURED WAVELENGTH RANGES AT A PRINTING PRESS
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United States of America Patent
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Issued Date -
Feb 10, 2011
app pub date -
Dec 8, 2008
filing date -
Dec 6, 2007
priority date (Note) -
Abandoned
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Abstract
The invention relates to a system and a method for controlling the composition of an ink mixture for at least one printing press, in which actual optical value of light are obtained, whereat the light has interacted at least with parts of the printing picture, which is generated by the printing press on the printing substrate using an ink mixture which is provided by an ink supply system and in which, due to the deviation of the actual optical value from optical reference values, a corrective ink mixture is created, which is added to the ink mixture which is provided by the ink supply system and which changes the ratio of the amounts of ink pigments therein, whereby first actual optical values are obtained inline, that is at running and just printed printing substrate, wherein these actual optical values are densitometrical values.
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