| 摘要 |
An applicator brush includes a stem, and a plurality of bristles supported by the stem. The stem extends from an end of a rod and includes a first branch and a second branch twisted together, each branch having a non-circular cross-section. The bristles are positioned between the twisted first and second branches. In some embodiments, each branch includes a plurality of strands pre-twisted together to create the non-circular cross-section of each branch, forming a multi-helicoidal stem. |
