PURPOSE: A bobbin for golden yarn is provided to prevent the damage of the bobbin by easily removing residual golden yarn from the bobbin. CONSTITUTION: Concave parts(8) and convex parts(9) are formed at the surface of a cylindrical body(3). A plurality of air vents(10) are formed at the concave parts and are communicated with an air passage. An inner and an outer friction surface(11,12) are formed at both flanges(2). A plurality of air cooling grooves(13) are formed with a fan-arm(15) and a fan-rib(14).
