ALGINATE FIBER AND PREPARATION METHOD THEREOF
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United States of America Patent
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Issued Date -
Oct 3, 2024
app pub date -
May 9, 2022
filing date -
May 12, 2021
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Abstract
An alginate fiber and a preparation method thereof are provided. The preparation method of the alginate fiber includes: S10: preparing a spinning solution with a raw material including sodium alginate; S20: extruding the spinning solution obtained in S10 into a solidification bath to allow solidification molding to obtain a primary fiber; S30: drawing and water-washing the primary fiber obtained in S20 to obtain an alginate fiber; and S40: soaking the alginate fiber obtained in S30 in a finishing agent to allow a post-treatment, where at least one of the raw material in S10, the solidification bath in S20, and the finishing agent in S30 includes a five-membered cyclic quaternary ammonium salt polymer. The alginate fiber obtained above has a high dye uptake, a small fiber strength loss, and a high soaping fastness.
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