Bulk enhancing forming fabrics
US7445032B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2006 |
| Grant date | Nov 4, 2008 |
| Priority date | — |
| Expiry date | Oct 19, 2026 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F1/0045
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A multilayered papermakers' forming fabric comprises at least one set of machine direction (MD) warp yarns, at least a first set of cross-machine direction (CD) machine side layer weft yarns; and paper side layer weft yarns woven in a repeating pattern with at least some of the MD warp yarns. At least some of the paper side layer weft yarns comprise an array of bulk enhancing weft yarns each having a vertical dimension which exceeds a corresponding vertical dimension of each of the remaining paper side layer weft yarns in a ratio of at least 1.25:1. Selected weft yarns can have different float lengths in the paper side surface. The fabrics of the invention impart increased bulk for products such as towel or tissue without loss of other required characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.