The following has been taken from an article by Bill Warner
of Allison Systems which I feel summarizes much of Tom Allison Jr’s feelings
when asked the same question.
With the doctor blade
being a critical part of the printing process, if you purchase the best
quality and most appropriate blade you can for your application, your doctor
blade related problems will be reduced or eliminated. Work with your doctor
blade supplier to determine the best choice of material and profile for your
doctor blades. Your blade supplier most likely has had experience with the same
printing requirements, issues, and problems that you have and will have
targeted guidance in the choice of blades for your application.
Regardless of the type
of doctor blades you use, material quality is of utmost importance. Protect
your anilox rolls and print jobs by making sure basic metal, composite, and plastic
blade stock is proven in service and is purchased from a quality source and
traceable by the supplier. Beyond the choice of doctor
blades, your doctor blade supplier will also likely be able to help with doctor
blade usage and safety training, as well as diagnostic worn blade analysis.
About the Author: Bill
Warner is a design engineer with Allison Systems Corp. He has 23 years of
experience with doctor blades and custom retrofit doctor blade systems for
flexographic and other printing processes.