| 20110289701 | Manufacturing Method of Toothbrush Filaments Using Power Toothbrush and Toothbrush Using Thereof - Provided is a tapered filament for a power toothbrush made of a synthetic resin and formed with tapers at two ends thereof and a non-tapered area for tufting part of which middle is tufted into a power toothbrush, wherein an overall length is 16 to 22 mm, a length of the non-tapered area for tufting part is 4 to 12 mm, and the rest parts except for the non-tapered area for tufting part form tapers at two ends. | 12-01-2011 |
