© 2019 Kadant Solutions Division Challenge In certain applications, doctor blades can have limited contact area with the roll surface. While the doctor blade maintains a sharp edge, the roll surface is not always completely cleaned. This is most commonly found in applications where the contaminating layer on the roll surface is very thin or adherent (e.g., on calender rolls or last top dryers on coated grade machines). Solution Kadant DriTek C doctor blades were installed and ran at multiple locations that had exhibited this problem prior to the DriTek C doctor blade installation. In each instance, the coating at the blade tip removed the offending layer and rendered a shiny roll surface. DriTek C doctor blades are composite-base

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