| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a thermochromic solid writing tool in which heat discoloration hardly occurs on a solid core during production and storage of the writing tool.SOLUTION: The thermochromic solid writing tool comprises at least: a solid core including reversible thermochromic microcapsule pigment; and an outer shaft holding the solid core. On an outer surface of the outer shaft, a decorative part having display formed of color, a character, a mark, or a symbol or combination of them, is provided. A heatproof movement layer for suppressing heat moving in the solid core from the outer shaft in a radial direction is provided between the outer shaft and the solid core.</p> |
