Process for producing nonwoven and apparatus suitable therefor
US11479889B2 · kind B2 · utility
0Cited by
21References
11Claims
0Family size
Assignee
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Key dates
| Filing date | May 24, 2019 |
| Grant date | Oct 25, 2022 |
| Priority date | — |
| Expiry date | Aug 25, 2039 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H18/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a process and an apparatus for making a fibrous web comprising a plurality of first areas comprising hydroentangled fibers, the first areas being discrete in a machine direction and/or a counter-machine direction, wherein the process comprises subjecting a fibrous web to a first hydroentanglement process directing water jets from a water injection means comprising a plurality of orifices on to the fibrous web; blocking at least one water jet from the water injection means discontinuously by use of a first blocking member positioned between the water injection means and the fibrous web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.