Dampened creping blade
AssigneeKimberly-Clark Worldwide, Inc.
InventorsRobert James Seymour, Richard Mark Hansen
Life of this patent
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Abstract
The present invention is generally directed to a doctor blade comprising a blade, a backing member or material and a viscoelastic material disposed there between. The doctor blades of the present invention overcome many of the limitations of prior art doctor blades, namely the reduction of blade vibration and the resulting damage caused to dryer surfaces. The creping blades and doctor blades of the present invention can be used for any purpose and should not be considered to be limited to the examples set forth herein.
Claims20
A creping blade comprising a blade having a tip and a blade clamping end and a length L1, a backing layer having a length L2 and a layer of viscoelastic material disposed between the blade and the backing layer, wherein L1 is greater than L2.
A creping apparatus for creping a web of tissue from a creping cylinder comprising a holder and a creping blade comprising a blade having a tip and a blade clamping end and a length L1, a backing layer having a length L2 and a layer of viscoelastic material disposed between the blade and the backing layer, wherein L1 is greater than L2.
A method of reducing creping blade vibration during the creping of a tissue web comprising the steps of providing a creping blade comprising a blade having a tip and a blade clamping end and a length L1, a backing layer having a length L2 and a layer of viscoelastic material disposed between the blade and the backing layer, wherein L1 is greater than L2, retaining the creping blade in a blade holder, conveying a tissue web across the surface of a creping cylinder and urging the creping blade against the surface of the creping cylinder thereby removing the tissue web therefrom with reduced creping blade vibration.
Dependencies are inferred from the claim text.