Thermochromic laminate and composition and sheet used for producing the laminate
Abstract
Abstract Translated from Japanese (57)【要約】 【目的】 赤ないし紫のメタリック色から無色または他 の色に熱変色する積層体とこの積層体を形成する塗装組 成物とシートを提供する。 【構成】 A.天然雲母の表面を45〜58重量%の酸 化チタンで被覆した被覆層の光学的厚さが245〜41 5nmであって粒度が5〜60μmのメタリック色金属 光沢顔料と膜形成材とからなる反射光の波長を調整する 層を第一層とし、 B.電子供与性化合物と電子受容性化合物と両者の呈色 反応を可逆的に生起させる有機化合物媒体とからなる熱 変色材料で発色状態の色濃度の明度値が6以下で消色状 態の無色の明度値が8以上である熱変色材料と膜形成材 により形成された層を第二層とした、可逆的にメタリッ ク色の金属光沢色から無色に変色する熱変色性積層体で あって第2層は非熱変色性染顔料を含むことも出来る。 この積層体を形成する夫々のその塗装組成物とシートも 包含する。 (57) [Summary] [PROBLEMS] To provide a laminate which changes its color from red or purple metallic color to colorless or another color by heat, a coating composition and a sheet which form this laminate. [Configuration] A. The optical thickness of the coating layer formed by coating the surface of natural mica with 45 to 58% by weight of titanium oxide is 245 to 41. A first layer is a layer for adjusting the wavelength of reflected light, which is composed of a metallic color metallic luster pigment having a particle size of 5 nm to 5 μm and a film forming material having a particle size of 5 nm, and B. A thermochromic material comprising an electron-donating compound, an electron-accepting compound, and an organic compound medium that reversibly causes a color reaction between the both, and a colorless lightness in a decolored state with a lightness value of 6 or less in a colored state. A thermochromic laminate that reversibly changes from a metallic luster color of metallic color to a colorless color, wherein the second layer is a layer formed of a thermochromic material having a value of 8 or more and a film forming material, and the second layer Can also include non-thermochromic dyes and pigments. Also included are each of the coating compositions and sheets that form the laminate.
Inventors
- 👤 Yutaka Shibahashi
- 👤 裕 柴橋
- 👤 Michiyuki Yasuda
- 👤 満行 安田
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