Perforated and embossed sheet forming fabric
US5837102A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 12, 1998 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Mar 12, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S162/903
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A paper-making machine for forming a paper web from a fiber suspension includes rotatable rolls, an endless forming fabric, and a headbox configured to receive and discharge the fiber suspension. The endless forming fabric is carried by the rolls and is configured to directly carry the fiber suspension discharged by the headbox. The forming fabric includes a monolithic plastic sheet with water drainage holes therein. The sheet has an embossed outer surface with generally rounded projections and generally rounded depressions. Each of the projections has a height of at least 125 microns. The embossed outer surface is configured for contacting the fiber suspension. The embossed outer surface of the sheet is formed using a calender having at least one embossing roll.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.