METHOD FOR PRODUCING REGENERATED CELLULOSIC FIBERS
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United States of America
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Issued Date -
Mar 13, 2025
app pub date -
Jul 22, 2022
filing date -
Jul 22, 2022
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Abstract
A method and a production facility for producing regenerated cellulosic fibers. A spinning solution is extruded into a coagulation bath which contains a salt and preferably an alkali. The spinning solution comprises cellulose dissolved in an aqueous solvent comprising NaOH and ZnO and the coagulation bath has a pH-value of at least seven. The fibers in the fiber tow are fixated and stretched to essentially their final cellulose specific diameter before being cut to staple fibers in an undried state.
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