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US 2024/0401253 A1Published application
Nonwoven fabrics comprising polylactic acid having improved strength and toughness
AssigneesFitesa Germany GmbH, Fitesa Simpsonville, Inc.
InventorsElena Novarino, Gary Drews, Jason Hamilton, Stephen Chester, Alfredo Izzo, David D. Newkirk
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Abstract
Nonwoven fabrics having a plurality of fibers that are bonded to each other to form a coherent web, wherein the fibers comprise a blend of a polylactic acid (PLA) and at least one secondary alkane sulfonate are provided. The nonwoven fabrics exhibit increased tensile strengths, elongation and toughness.
Claims20
A spunbond nonwoven fabric comprising a plurality of fibers comprised of a bio-based polymer and wherein the filaments are air through bonded.
A process for preparing a nonwoven fabric, the process comprising:
- forming a stream of molten or semi-molten resin comprised of a bio-based polymer;
- forming a plurality of filaments from said stream;
- depositing the plurality of filaments onto a collection surface;
- and
- bonding the plurality of filaments via a stream of heated gas to form the nonwoven fabric.
2 more elements
Dependencies are inferred from the claim text.