Method for forming laminate nonwoven fabric
US6782589B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 29, 2001 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Jul 8, 2022 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H1/498
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for creating a nonwoven laminate fabric has steps of depositing a first nonwovne layer on a moving support, depositing a second nonwoven layer over the first layer, and conveying the layers under a manifold. The manifold has a plurality of jet clusters separated from one another by a distance. Water is directed form the jet clusters onto the underlying layers to thereby create a laminated fabric. Because the jet clusters are separated from one another, the laminate fabric is “pattern entangled”. Bundling occurs along substantially linear lines, with much lighter bundling in regions between the linear bundling regions. The result is a fabric with regions of relative strong entanglement and other regions of much lighter entanglement. When three layers are laminated, with top and bottom layers of thin veneer and a center layer of pulp the method of the invention has been discovered to result in a laminate fabric with particular utility as a flushable wipe product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.