Warp-tied composite forming fabric
US6202705A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 1999 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | May 20, 2019 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F1/0045
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A composite forming fabric, comprising in combination a paper side layer having a paper side surface, a machine side layer and paper side layer intrinsic warp binder yarns. Each of the paper side layer and the machine side layer are woven together in a repeating pattern, and the two layers together are woven in at least 6 sheds, and up to at least 36 sheds can be used. All of the paper side layer warp yarns are provided by pairs of intrinsic warp binder yarns. The paper side layer weave pattern provides an unbroken warp path in the paper side surface including at least two segments, occupied in turn by each intrinsic binder yarn; the segments are separated by at least one paper side layer weft. Within each segment, each intrinsic binder yarn also interlaces once with a machine side layer weft, at the same point as a machine side layer warp interlaces with the same weft. The weave path occupied by each member of a pair of intrinsic warp binder yarns can be the same or different. The segment lengths can be the same or different, and the machine side layer interlacing points can be regularly or irregularly spaced apart. The fabrics as woven and before heat setting conveniently have a …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.