Warp-tied composite forming fabric
US6581645B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2001 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | Feb 17, 2022 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F1/0036
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A composite forming fabric woven to a repeating pattern in at least 6 sheds; up to at least 36 sheds can be used. All of the paper side layer warp yarns are pairs of intrinsic warp binder yarns (101, 102) occupying an unbroken warp path in the paper side surface including three segments. The first and a second are occupied in turn by each intrinsic warp binder yarn (101, 102), and the third by both intrinsic warp binder yarns (101, 102) of a pair. The first, second and third segments are separated by at least one paper side layer weft, and a first or second segment is adjacent each end of the third segment. Within each first and second segment, each intrinsic warp binder yarn (101, 102) also interlaces once with a machine side layer weft (2′, 9′), at the same point as a machine side layer warp (103) interlaces with the same weft (2′, 9′). The weave path occupied by each member of a pair of intrinsic warp binder yarns (101, 102) 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. After heat setting, the fabrics typically have a warp fill from abou…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.