Doctor blade and holder for metering system

Details Doctor blade and holder for metering system Doctor blade and holder for metering system

B - Operations, Transporting

41

F

101/101

B41F 31/02 (2006.01) B41F 31/04 (2006.01) B41F 31/20 (2006.01)

Patent

CA 1280032

ABSTRACT OF THE DISCLOSURE An ink metering system for a rotating ink roll having a shaft journaled in the frame of an inking system including two doctor blades and a mechanism for supporting the doctor blades on the shaft of the ink roll so that the doctor blades contact the ink roll under uniform pressure independent of movement between the ink roll and the frame. The arrangement also includes a mechanism for adjusting the pressure of the doctor blades and for sealing the system. The doctor blade is composed of polytetrafluoroethylene-polyphenylene sulfide ceramic resin containing graphite fibres. The doctor blade includes a number of laminated sheets of this material in which a majority of the sheets include fibres oriented in the machine direction and at least one sheet includes fibres oriented perpendicular to the machine direction.

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