| 摘要 |
PURPOSE: An ink-leaking prevention liquid chalk capable of being filled with ink by a new type of ink injection is provided to fill the ink not by the existing direct ink injection but by the replacement of an ink container filled with liquid chalk ink. CONSTITUTION: An ink-leaking prevention liquid chalk comprises a cap(2) and a pen container unit(1).The cap is positioned on the top of the upper end of the pen container unit, is detachable by the counter-clockwise turning and locked by the clockwise turning. The pen container unit includes an ink bottle(3) of a PETE material and has marking per ml for the identification of the remained ink. |
