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. 28, 2006
Filed:
Dec. 12, 2002
Dimitri P. Zafiroglu, Wilmington, DE (US);
Geoffrey David Hietpas, Newark, DE (US);
Debora Flanagan Massouda, Wilmington, DE (US);
Thomas Michael Ford, Greenville, DE (US);
Dimitri P. Zafiroglu, Wilmington, DE (US);
Geoffrey David Hietpas, Newark, DE (US);
Debora Flanagan Massouda, Wilmington, DE (US);
Thomas Michael Ford, Greenville, DE (US);
Invista North America S.a.r.l., Wilmington, DE (US);
Abstract
This invention relates to an improved method for preparing stretchable multiple-component bonded composite sheets which involves bonding a fibrous layer of spirally-crimpable multiple-component continuous filaments or staple fibers to one or more non-spirally-crimpable layers using an array of intermittent mechanical, chemical, or thermal bonds, and heating the bonded composite to activate the spiral crimp of the fibers in the spirally-crimpable layer. Multi-layer nonwoven fabrics prepared according to the method of the current invention have an improved combination of strength, aesthetics, stretch-recovery properties, and textile hand and drape compared to multiple-component nonwoven fabrics known in the art.