| 摘要 |
<p>PURPOSE:To flow a larger amount of a liquid through a carrier, by forming a cored or hollow rod shaped body having an outer surface constituted of a large number of protruded loop yarn accumulated bodies in a spiral form. CONSTITUTION:Annular loop yarns 2...2<n> are radially projected from the periphery of a core body 1 and the density of yarns becomes small toward the outer periphery of a carrier 3 and becomes large as approaches the core body 1. Further, the carrier 3 is formed as a spiral carrier 5 having spirals 4...4<n> formed thereto so as to provide intervals. The interval between adjacent spirals formed by the spirals 4...4<n> is set to the outer diameter or more of the carrier 3 and each spiral has at least an angle of 5 deg.-45 deg. to the spiral axis. By this method, an activity lasting period can be prolonged.</p> |
