| 摘要 |
<p>A wiping cloth which is made of a nonwoven fabric and which has satisfactory water absorption and changes little in water absorption with time. It is obtained from a specific composite fiber capable of being split. This composite fiber is composed of a polyester polymer component (A) containing a polyoxyalkylene glycol having a weight-average molecular weight of 2,000 to 20,000 and, bonded thereto, a polyolefin polymer component (B) incompatible with the polymer component (A). This composite fiber is split into one or more fibers (A) consisting of the polymer component (A) and one or more fibers (B) consisting of the polymer component (B). The exposed surfaces of the fibers (A) and (B) resulting from the splitting are treated with a plasma. Due to the synergistic effect of the polyoxyalkylene glycol and the plasma treatment of the exposed surfaces of the fibers (A) and (B), water absorption is significantly improved.</p> |
