| 摘要 |
PROBLEM TO BE SOLVED: To provide a solid writing implement which is reduced in defects of the appearance and is excellent in strength, e.g. impact resistance.SOLUTION: A solid writing implement includes an inner core comprising a reversible thermochromic microcapsule pigment including a thermochromic color-memory composition, an excipient and a resin and an outer shell covering the outer peripheral surface of the inner core, and the outer shell has a Young's modulus of 3.0 GPa or smaller. |
