| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermally discoloring laminate having a greatly improved interference effect exhibited by the laminate upon coloring by laminating an excellent glitter pigment on a heat discoloration layer. SOLUTION: The discoloring laminate is prepared by laminating a thermally discoloring layer 2, which changes its color reversibly at a desired temperature, with a glitter pigment 3 having dichroism due to the interference effect specifically selected from glitter pigments 6 each comprising a thin base material 4 made of aluminum oxide having the particle diameter of 5-60μm, the thickness of not more than 1.0μm and the aspect ratio of not less than 20 and a coated metal oxide 5 such as titanium oxide, a mixture of titanium oxide and zirconium oxide and a mixture of tin oxide on the above base material. COPYRIGHT: (C)2004,JPO
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