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:
Aug. 28, 2012
Filed:
Mar. 01, 2006
Dimitri P. Zafiroglu, Wilmington, DE (US);
Geoffrey D. Hietpas, Wilmington, DE (US);
Debora Flanagan Massouda, Wilmington, DE (US);
Thomas Michael Ford, Wilmington, DE (US);
Patricia A. Ford, Legal Representative, Wilmington, DE (US);
Dimitri P. Zafiroglu, Wilmington, DE (US);
Geoffrey D. Hietpas, Wilmington, DE (US);
Debora Flanagan Massouda, Wilmington, DE (US);
Thomas Michael Ford, Wilmington, DE (US);
Patricia A. Ford, legal representative, Wilmington, DE (US);
INVISTA North America S.àr.l., Wilmington, DE (US);
Abstract
A method for preparing stretchable bonded nonwoven fabrics which involves forming a substantially nonbonded nonwoven web of multiple-component continuous filaments or staple fibers which are capable of developing three-dimensional spiral crimp, activating the spiral crimp by heating substantially nonbonded web under free shrinkage conditions during which the nonwoven remains substantially nonbonded, followed by bonding the crimped nonwoven web using an array of discrete mechanical, chemical, or thermal bonds. Nonwoven fabrics prepared according to the method of the current invention have an improved combination of stretch-recovery properties, textile hand and drape compared to multiple-component nonwoven fabrics known in the art.