Forming belt for shaped nonwoven
US11401640B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2018 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | Dec 10, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/51305
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A forming belt for use in making a nonwoven substrate. The forming belt includes a first surface defining a plane of the first surface and an axis parallel to a longitudinal direction corresponding to a machine direction when in use. A plurality of discrete belt patterns can be ordered in sequential relationship with respect to the longitudinal direction. At least a majority of the plurality of discrete belt patterns can include a discrete belt pattern overall area, a first forming zone having a first pattern of three-dimensional raised elements extending outwardly from the plane of the first surface and a second forming zone having a second pattern of three-dimensional raised elements extending outwardly from the plane of the first surface. The first forming zone can have a first air permeability value and the second forming zone can have a second air permeability value. The first air permeability value can be different from the second air permeability value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.