Press felt for a papermaking machine
US9365975B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2014 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Oct 2, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2305/30
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A press felt includes a base structure providing dimensional stability in a machine and a cross machine direction of the felt, a batt fiber structure including batt fiber layers attached to the base structure which provide a paper contacting side and a machine contacting side of the felt. The base structure includes a first and second side. Polymeric beads or strands made from a polymeric material are arranged on at least one of the two sides of the base structure. The polymeric beads or strands arranged on the at least one side have a longitudinal expansion in the machine direction of the felt and are arranged side-by-side when viewed in the cross machine direction of the felt to generate space between adjacent beads or strands. At least one of the batt fiber layers is arranged to cover both the at least one side and the polymeric beads or strands thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.