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US5914084: Method of making a stabilized extensible nonwoven web

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Filing Information

Inventor(s) Douglas H. Benson · John J. Curro ·
Assignee(s) The Procter & Gamble Company ·
Attorney/Agent(s) Kevin C. Johnson ·
Primary Examiner Leo B. Tentoni ·
Application Number US8832875
Filing date 04/04/1997
Issue date 06/22/1999
Predicted expiration date 04/04/2017
U.S. Classifications 264/284  · 156/209  ·
International Classifications B29C 5514  ·
Kind CodeA
International Classifications 264280;284;288.4;290.2 ·
19 Claims, No Drawings


Abstract

The present invention provides a stable nonwoven web having enhanced extensibility and a method for making the same. A neckable nonwoven web is fed in a first direction. The neckable nonwoven web is subjected to incremental stretching in a direction perpendicular to the first direction. A tensioning force is applied to the neckable nonwoven web to neck the nonwoven web. The necked nonwoven web is then subjected to mechanical stabilization to provide a stabilized extensible necked nonwoven web. The stabilized extensible necked nonwoven web is easily extended in a direction parallel to the direction necking.

Independent Claims | See all claims (19)

  1. 1. A method of producing a stabilized extensible nonwoven web comprising the steps of:a) providing a neckable nonwoven web;b) feeding the neckable nonwoven web in a first direction;c) subjecting the neckable nonwoven web to incremental stretching in a direction perpendicular to said first direction;d) applying a tensioning force to the neckable nonwoven web to neck the nonwoven web; ande) subjecting the necked nonwoven web to mechanical stabilization to provide a stabilized extensible necked nonwoven web.
  2. 17. A method of producing a stabilized extensible nonwoven web comprising the steps of:a) providing a neckable nonwoven web;b) feeding the neckable nonwoven web in a first direction;c) subjecting the neckable nonwoven web to incremental stretching in a direction perpendicular to said first direction;d) applying a tensioning force to the neckable nonwoven web in a direction parallel to said first direction to neck the nonwoven web in a direction perpendicular to said first direction; ande) subjecting the necked nonwoven web to incremental stretching in a direction parallel to said first direction to provide a stabilized extensible nonwoven web.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US4981747 Kimberly-Clark Corporation Morman Jan 1991
US5226992 Kimberly-Clark Corporation Morman Jul 1993
US5244482 The University of Tennessee Research Corporation Hassenboehler, Jr. et al. Sep 1993
US5320891 Kimberly-Clark Corporation Levy et al. Jun 1994
US5492753 Kimberly-Clark Corporation Levy et al. Feb 1996

Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
GB1211602PROCTER & GAMBLENov 1970
WO20WO9805813Feb 1998

Referenced By

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