| 摘要 |
PROBLEM TO BE SOLVED: To provide a writing-coating implement which reduces or absorbs gas produced in an ink tank and which is free from a blur of ink and the like, and has high basic qualities. SOLUTION: A coating implement, wherein ink in a state of being kept fluid is incorporated, is equipped with an ink tube and a slide plug 5 and has a constitution wherein the ink is filled in an ink tank 11 enclosed with the ink tube and the slide plug 5 and wherein the slide plug advances with consumption of the ink 12. In the ink 12, nigrosine is contained by 8%. |
