Acrylic-fiber manufacturing method
AssigneeKaneka Corporation
InventorsRyohei Noishiki, Masanobu Tamura
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Abstract
A method for manufacturing an acrylic fiber uses a spinning solution in which an acrylic polymer is dissolved in an organic solvent, the method including reducing an amount of organic solvent by repeatedly spraying water onto coagulated filaments obtained by solidifying the spinning solution and pressing the coagulated filaments with nip rolls. The nip rolls may apply a nip pressure of 0.2 MPa or higher. Thus, a method for manufacturing an acrylic fiber with which an organic solvent in the acrylic fiber can be removed within a short period of time without using a water bath is provided.
Claims11
A method for manufacturing an acrylic fiber using a spinning solution, the method comprising:
- reducing an amount of an organic solvent by repeatedly spraying water onto coagulated filaments and pressing the coagulated filaments with nip rolls, wherein the coagulated filaments are obtained by solidifying the spinning solution comprising an acrylic polymer and the organic solvent.
Dependencies are inferred from the claim text.