| 摘要 |
<p>According to the present invention, provided is a core-shell structure of a color-changing microcapsule which has an average diameter of 50-1500μm and comprises: a core including (A) a core seed and (B) at least one inner color layer; and a shell including (C) a pressure-breakable wall layer surrounding the core, (D) an arbitrary outer color layer, and (E) an arbitrary outermost protection layer. The above-described color seed contains sugar alcohol without a colorant, and the above-described pressure-breakable wall layer includes titanium dioxide particles and a binder consisting of at least one wall forming material and at least one lipid-substrate material. The color-changing microcapsule according to the present invention retains excellent storage durability, handling durability, and color hiding capability of the inner color layer; can be easily broken by pressing, rubbing, wiping, or scrubbing through a hand or a tool (cotton cloth, sponge, or paper) to express a color of the inner color layer; and can maintain long-term stability even when added in a carrier.</p> |
