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US 2006/0052019 A1Published application
Papermakers felt having a point-bonded web layer formed of coarse fibers
AssigneeVoith Fabrics
InventorRobert Crook
Life of this patent
Estimating the term…
Abstract
A papermakers felt comprising a fibrous outer layer formed of inter-engaged fibers of between 3.0 and 67 dtex inter-engaged preferably by needling, and a web layer formed of fibers which are between 200 and 600 dtex and are inter-engaged preferably by point bonding. The outer layer is engaged with the web layer, preferably by needling, forming a composite papermakers felt.
Claims22
A papermakers felt comprising:
- a fibrous outer layer formed of inter-engaged fibers of between 3.0 and 67 dtex;
- a web layer formed of inter-engaged fibers of between 200 and 600 dtex randomly arranged;
- said outer layer being engaged with the web layer forming a composite papermakers felt.
A method of forming a multi-layer papermakers felt comprising:
- forming a web of fibers of between 200 and 600 dtex and inter-engaging said fibers by one of thermal and chemical bonding forming a web layer;
- arranging a layer of fibers of between 3.0 and 67 dtex over an upper surface of said web layer and inter-engaging said fibers with said web layer forming an outer layer integral with and over said upper surface of said web layer, wherein
- said combined outer layer and web layer form said papermakers felt.
Dependencies are inferred from the claim text.