| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for improving dye-affinity of a composite yarn that comprises a natural cellulose fiber and a regenerated cellulose fiber and/or refined cellulose fiber. <P>SOLUTION: The method for producing a cellulose composite yarn comprises the steps of: treating the composite yarn that comprises the natural cellulose fiber and the regenerated cellulose fiber and/or refined cellulose fiber in an aqueous solution of an alkali hydroxide having a concentration of 150-250 g/l at a temperature of higher than 50°C but 80°C or lower; and then conducting neutralizing and washing treatment for the composite yarn, which are for dealkylation of the composite yarn, at 40°C-80°C. <P>COPYRIGHT: (C)2013,JPO&INPIT |
