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:
Feb. 25, 2025
Filed:
May. 03, 2022
Pfnonwovens Llc, Hazleton, PA (US);
Pfnonwovens Holding S.r.o, Prague, CZ;
Karthik Ramaratnam, Anderson, SC (US);
Peter Zajaczkowski, Greenville, SC (US);
John C. Parsons, Annville, PA (US);
Michael Heinz Kauschke, PRIEN am Chiemsee, DE;
Antonius Lambertus Johannes De Beer, Loveland, OH (US);
PFNONWOVENS LLC, Hazleton, PA (US);
PFNONWOVENS HOLDING S.R.O, Prague, CZ;
Abstract
A method of forming an apertured hydro-patterned nonwoven web including the steps of forming a nonwoven batt comprising continuous spunmelt fibers, calender bonding the nonwoven batt to form a fully bonded precursor nonwoven web with a regular bond pattern that defines individual bond impressions and unbonded areas between the individual bond impressions, the regular bond pattern having a percentage bond area of 10% to 25%, and hydraulically imparting the fully bonded precursor nonwoven web with a plurality of apertures, the step of hydraulically imparting comprising hydraulically treating the fully bonded precursor nonwoven web by a plurality of steps of water injection as the fully bonded nonwoven web passes over a plurality of pins.