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US 12,128,647 B2Granted
Blade and creping arrangement
AssigneeVoith Patent GmbH
InventorsAlexandre Claudon, Pierre-Yves Pfirter
Life of this patent
Estimating the term…
Abstract
A blade for creping a paper web from a dryer cylinder surface. The blade has a leading side and a front bevel surface to be impacted by the paper web. The leading side and the front bevel surface meet at a contact edge to contact the dryer cylinder. The front bevel surface has a 3D areal roughness, measured according to ISO 25178, of Sa>0.7 μm and/or Sz>18 μm and/or Sq>1.0 μm.
Claims20
A blade for creping a paper web from a dryer cylinder surface, the blade comprising:
- a blade body having a leading side and a front bevel surface;
- said leading side and said front bevel surface meeting at a contact edge;
- said contact edge being configured to contact the dryer cylinder;
- said front bevel surface extending at least 150 μm from said contact edge in a thickness direction of the blade and to be impacted by the paper web;
- and
- said front bevel surface having a 3D areal roughness, measured according to ISO 25178, with at least one of:
- Sa>0.7 μm, or
- Sz>18 μm, or
- Sq>1.0 μm.
6 more elements
Dependencies are inferred from the claim text.