| 摘要 |
PROBLEM TO BE SOLVED: To provide a solid writing body capable of providing satisfactory strength as a solid writing body as well as having stable strength.SOLUTION: A solid writing body includes a reversible thermochromic microcapsule pigment and a shaping agent. The reversible thermochromic microcapsule pigment contains a thermochromic color-memory composition including at least: (a) an electron-donating coloration organic compound; (b) an electron-accepting compound; and (c) a reaction medium reversibly originating electron donating/accepting reaction with the components of (a) and (b) in a specific temperature region. A crystallinity index of the component of (c) is within a specific range. |
