| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a low-cost string for rackets having high durability and excellent feel of striking.SOLUTION: The string for rackets includes: a core yarn consisting of a synthetic fiber; a sheath yarn disposed outside the core yarn; and a surface layer resin covering the surface. The racket string includes a meta-aramid fiber and/or a protein filament partially disposed on the outer peripheral part therein, and the surface resin is a copolymerized polyamide including 25-75 wt.% of nylon 12 composition and 75-25 wt.% of other copolymerization components.</p> |
