Apparatus for needling a nonwoven web
US5148584A · kind A · utility
Inventor
Key dates
| Filing date | May 10, 1991 |
| Grant date | Sep 22, 1992 |
| Priority date | — |
| Expiry date | May 10, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H18/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In order to produce a needled nonwoven web having an improved surface quality, the needle board (1) of an apparatus for needling a nonwoven web should be provided with needles in a higher needle density. To that end the needles (2) of the needle board (1) are arranged in groups having a higher needle density and a perforated plate (5) of the stripper (4) and a perforated plate of the backing member (3) are provided in association with each group of needles with a common receiving hole (7). The needles (2) of each group are arranged in a longitudinal row generally extending in the direction of travel of the nonwoven web and are transversely offset from each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.