Nonwoven fabric sheet and method for making the same
Number of patents in Portfolio can not be more than 2000
United States of America
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Apr 20, 2021
Grant Date -
Oct 10, 2019
app pub date -
Aug 29, 2017
filing date -
Aug 29, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention relates to a patterned spunbonded nonwoven fabric sheet comprising a plurality of spunbonded crimped fibers bonded together at a plurality of bonding points, wherein all fibers of the patterned spunbonded nonwoven fabric sheet are spunbonded crimped fibers and wherein the configuration of the fibers within the sheet is inhomogeneous and varies according to a preferably regular pattern. The invention further relates to a method for forming such patterned spunbonded nonwoven fabric sheet from a flat spunbonded nonwoven fabric sheet starting material. Still further, the invention relates to such flat spunbonded nonwoven fabric sheet starting material.
First Claim
Family
International Classification(s)
- A61F:FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES....
- D06C:FINISHING, DRESSING, TENTERING, OR STRETCHING TEXT....
- D01F:CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL....
- B44B:MACHINES, APPARATUS, OR TOOLS FOR ARTISTIC WORK, e....
- D04H:MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAME....
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
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