| 摘要 |
PROBLEM TO BE SOLVED: To obtain a fiber bundle core capable of being rapidly decomposed and recycled to resources by discarding in soil or the like after using, a method for manufacturing it and a writing instrument mounting the core. SOLUTION: The biodegradable fiber bundle core bonds biodegradable fiber (polylactate fiber or the like) by a binder resin so as to have an air gap capable of bringing about a capillarity. The writing instrument (an ink marker or the like) mounts the fiber bundle core. The method for manufacturing the biodegradable fiber bundle core comprises the steps of dipping the biodegradable fiber in a solvent containing the binder resin, then drying it to the fiber bundle having an air gap capable of bringing about the capillarity, cutting the bundle in a desired length, and molding its one end in a core state. |
