APPARATUS AND METHOD FOR DEPOSITING MULTIPLE COATING MATERIALS IN A COMMON PLASMA COATING ZONE
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United States of America Patent
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Sep 7, 2017
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May 17, 2007
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Abstract
In an embodiment a method of coating a substrate comprises moving the substrate along a path of travel through a coating zone; generating a plasma jet directed toward a first side of the substrate; injecting a first reagent into the plasma jet; injecting a second reagent into the plasma jet; and regulating the flow of the first reagent according to a first set of parameters so that the first reagent is injected upstream of the plasma jet relative to the path of travel of the substrate; regulating the flow of the second reagent according to a second set of parameters so that the second reagent is injected downstream of the plasma jet relative to the path of travel of the substrate, such that the first and second reagents are applied to the substrate to form at least one layer of a coating on the substrate.
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