Press felt for making paper
US6358369B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2000 |
| Grant date | Mar 19, 2002 |
| Priority date | — |
| Expiry date | Mar 22, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24992
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A paper-making press felt (1) includes a base member (2) and at least one batt layer (3) laminated on the base member (2), and is characterized in that the base member (2) is made of a plurality of ground fabrics, and in that, of the plurality of ground fabrics, a second ground fabric (B) arranged next to a first ground fabric (A) arranged nearest to a surface (4) on which a wet paper sheet is placed has a structure whose density is higher than or whose air permeability is lower than that of the first ground fabric (A), and can regulate water from moving from the second ground fabric (B) to the first ground fabric (A) and hence can prevent a re-wetting phenomenon effectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.