Lyocell fiber
AssigneeLenzing Aktiengesellschaft
InventorsHeinrich Firgo, Heidrun Fuchs
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Abstract
The invention concerns a Lyocell fiber, containing a material selected from the group consisting of pearl powder, ground nacre and mixtures thereof. For the manufacture of the fiber according to the invention, a process is used comprising the steps of manufacturing a spinning solution of cellulose in an aqueous tertiary amine oxide, preferably N-methylmorpholine-N-oxide (NMMO) spinning the spinning solution to fibers, and being characterized in that a material selected from the group consisting of pearl powder, ground nacre and mixtures thereof is admixed to the spinning solution and/or to a precursor thereof.
Claims11
A Lyocell fiber, comprising a material selected from the group consisting of pearl powder, ground nacre and mixtures thereof, wherein the material is present in an amount of from about 0.07 wt. % to about 5 wt. %, based on fiber, and wherein loss of yield of the material during production of the fiber is from about 5% to about 30%.
A process for the manufacture of a Lyocell fiber, comprising the steps of
- manufacturing a spinning solution of cellulose in an aqueous tertiary amine oxide, preferably N-methylmorpholine-N-oxide (NMMO);
- and
- spinning the spinning solution to fibers,
- wherein a material selected from the group consisting of pearl powder, ground nacre and mixtures thereof is admixed to the spinning solution and/or to a precursor thereof, wherein the material is present in the fiber in an amount of from about 0.07 wt. % to about 5 wt. %, based on fiber, and wherein loss of yield of the material during production of the fiber is from about 5% to about 30%.
Dependencies are inferred from the claim text.