Two-ply papermakers forming fabric with zig-zagging MD yarns
US5025839A · kind A · utility
45Cited by
16References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 29, 1990 |
| Grant date | Jun 25, 1991 |
| Priority date | — |
| Expiry date | Mar 29, 2010 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F1/0036
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A two-ply forming fabric having an upper paper carrying/forming layer which comprises twice as many cross machine direction yarns as the lower, machine-side layer. A system of machine direction yarns interweaves in a selected repeat pattern such that a zigzag effect is produced on the underside of the fabric by the machine direction yarns to provide improved drainage. The higher count of upper layer CMD yarns selectively interwoven in a non-twill pattern with 80%-100% cover of MD yarns provides an improved paper forming/carrying surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.