| 摘要 |
PURPOSE: A mercerization of cotton fiber in dissolved gas free liquid sodium hydroxide is characterized by removing dissolved gas from the liquid sodium hydroxide without using chemicals. The mercerization of the cotton fiber is capable of increasing penetrating capability of the liquid sodium hydroxide, increasing quantity of amorphous areas, increasing moisture regain and dyeing property, improving swelling property and degree of orientation, increasing tensile strength and increasing luster. CONSTITUTION: The mercerization of the cotton fiber in dissolved gas free liquid sodium hydroxide is as follows: preparing liquid sodium hydroxide; removing dissolved gas from the liquid sodium hydroxide with a hollow fiber membrane degasifier to make liquid sodium hydroxide contain under 0.3ppm of dissolved gas; steeping cotton in the liquid sodium hydroxide, followed by washing and neutralizing it; and then washing and drying the cotton.
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