The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 28, 2004
Filed:
Feb. 20, 2004
Method for the production of nonwoven webs, the cohesion of which is obtained by means of fluid jets
Frédéric Noelle, Saint Nazaire les Eymes, FR;
Rieter Perfojet, Montbonnot, FR;
Abstract
A method for producing a nonwoven web formed at least partly with hydrophilic fibers is provided. In one aspect, the method comprises producing by carding a textile layer ( ) which is then compressed and moistened; subjecting the textile layer to a bonding treatment using water jets acting at least against one of its surfaces; and transferring said bonded layer to a unit ( ) to be dewatered and dried. One aspect of the method is characterized in that, after the bonding treatment ( ) with water jets and before drying and delivery, the pre-bonded and moistened layer is transferred to a supplementary unit ( ) to be treated by the action of one or several series of water jets, the unit comprising a mobile suction surface in the form of a drum covered with an open-work structure ( ) comprising a wire-mesh fabric, the wire-mesh fabric comprising successive raised and recessed zones.