Method for treating coating formulations
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United States of America Patent
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Jul 8, 2003
Grant Date -
Nov 1, 2001
app pub date -
Mar 21, 2001
filing date -
Mar 21, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A method of making a coating formulation prior to its introduction onto a web to be printed by an ink jet printer. The method includes the steps of: determining the nature and amount of undesirable substances in a component of the coating formulation, adjusting the pH of the component, contacting the pH adjusted component with a first activated carbon material, filtering the thus treated component, contacting the thus treated component with a second activated carbon material, and filtering the thus treated component and combining it with other components of the coating formulation to yield a treated coating formulation having a reduced amount of the undesirable substances.
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