Lyocell nonwoven fabric and process for making
AssigneeWeyerhaeuser Company
InventorsMengkui Luo, Vincent A. Roscelli, Amar N. Neogi, Richard A. Jewell
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Abstract
The invention is lyocell fiber characterized by a pebbled surface as seen at high magnification and having a variable cross section and diameter along and between fibers. The fiber is produced by centrifugal spinning, melt blowing or its spunbonding variation. The fibers can be made in the microdenier range with average weights as low as one denier or less. The fibers have inherently low gloss and can be formed into tight yarns for making fabrics of very soft hand. Alternatively, the fibers can be formed into self bonded nonwoven fabrics.
Claims10
A method of forming a lyocell nonwoven fabric which comprises:
- depositing a multiplicity of strands of a cellulose solution from apertures onto a receiving surface to form a fiber mat;
- contacting the formed mat with a regenerating solution;
- and
- removing the regenerated mat from the receiving surface.
A method for forming a lyocell nonwoven fabric, comprising stretching cellulose solution into filaments using a gas.
Dependencies are inferred from the claim text.