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:
Apr. 12, 1994
Filed:
Sep. 12, 1991
Chisso Corporation, Osaka, JP;
Abstract
A fiber bundle comprising a plurality of composite fibers spun out of a spinneret is blown against a working net conveyor by a drawing force of a high-speed air stream while the air stream is sucked and removed from below the net conveyor to deposit the fiber bundle on the net conveyor to form a web, and the web is then heat-treated to develop crimps and the fibers thermally adhere together at their points of contact, thereby obtaining a nonwoven fabric, wherein the air stream is blown against the web from below the net conveyor for a time before the heat-treatment, with an intensity sufficient to make the web to float in such a manner that the bottom face of the web rise above the net conveyor by 0.2 to 30 mm.