| 摘要 |
PROBLEM TO BE SOLVED: To suitably use a makeup material foundation for evaluation of makeup material by providing a spectral dent in a specified wavelength area of the spectral reflecting characteristic of the bed. SOLUTION: The spectral dent means a dent having a spectral form caused by that the reflectance, in a wavelength range of, for example, 500-620nm, becomes lower than the reflectance Rstd (λ) of a linear spectrum passing the reflectances in 500nm and 620nm. As coloring materials, a coloring material A having an infection point in 510±25nm and a coloring material having an infection point in 620±25nm are preferably used in combination. In the spectral reflection spectrum of a makeup material foundation in which yellow No. 410 and red No. 202 are blended, the area is 541.4%.nm, and the maximum differential spectrum value between the linear Rstd (λ) and the reflectance Rskin (λ) is 12.2%. This bed is visually sensed similarly to the actual natural skin, and the color after a foundation is seen similarly to the actual natural skin under various light sources.
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