Nonwoven fabric made of fine denier filaments and a production method thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 17, 1998
Issued Date -
N/A
app pub date -
Feb 7, 1996
filing date -
Oct 5, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention provides a nonwoven fabric made of fine denier filaments of superior bulkiness, heat insulation property and tensile strength, and a production method thereof. This nonwoven fabric is made of fine denier filaments produced by first preparing. First a thermoplastic polymer component 'A', then another thermoplastic polymer component 'B' which is insoluble in the component 'A' and of which the melting point is higher than that of the component 'A' by 30.degree. to 180.degree. C. Adopting a bicomponent melt spinning method employing the component 'A' and the component 'B', the bicomponent conjugate filaments, on which surface at least component 'A' is exposed, are obtained. By accumulating these bicomponent conjugate filaments, a web is formed. Then heat is applied to the predetermined areas on the web throughout its entire thickness, whereby only the component A is softened or molten, and the bicomponent conjugate filaments are heat bonded to one another, thus a fleece is obtained. The predetermined areas are shaped like dots or lattices and distributed with a certain space between them. After obtaining the fleece, a wrinkling action is applied to the fleece.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully