BAST FIBER, FABRICS MADE THEREWITH, AND RELATED METHOD OF MANUFACTURE
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United States of America Patent
Stats
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N/A
Issued Date -
Oct 27, 2022
app pub date -
Sep 24, 2020
filing date -
Sep 24, 2020
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
The invention relates to methods for providing crimped bast fibers which may include providing an input of bast fibers, adjusting the moisture content of the bast fibers to be in the range of about 10% to about 40% by weight to form a fiber mat, and contacting the fiber mat with a pair of heated crimping rolls to provide crimped bast fibers having a crimp of about 1 to about 10 crimps per centimeter. The invention further provides for a nonwoven fabric comprising at least 5% of the crimped bast fibers. The crimping of the bast fibers in these nonwoven fabrics is beneficial to forming a drylaid, airlaid or wetlaid nonwoven fabric that has desirable properties related to performance in a variety of nonwoven product applications.
First Claim
Other Claims data not available