| 摘要 |
A brush having a central core with a proximal end adapted to be affixed to a handle means, a distal end defining a tip, and a twisted wire holding a helical array of disposed bristles. The core has at least two zones, preferably three zones, wherein at least one zone differs in the range of bristles per turn of the helix from the other zone(s). One type of bristle is employed throughout the brush, and preferably the bristles are substantially uniform in diameter throughout the brush. A zoned picker bar is provided enabling production of bruses having a predetermined zoned configuration. |
