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:
May. 28, 2002
Filed:
Oct. 15, 1999
Uni-Charm Corporation, , JP;
Abstract
A method for manufacturing an aperture web including bonding a first and second web together with the second web bonded to a lower surface of the first web and feeding the bonded web in a first direction, subjecting the first web to pillar-shaped water jets from at least one nozzle having a plurality of orifices arranged transversely to the first direction until the first web is locally torn and provided with a plurality of apertures in rows extending parallel to one another in the first direction, and then subjecting the second web to pillar-shaped water jets supplied from at least one nozzle having a plurality of orifices arranged transversely to the first direction until peripheral edges of the apertures are partially deformed upward from the lower surface of the first web.