Abstract
Following the technical developments in dyeing or finishing, abundant color environments have been formed in the apparel and other fields of living. Among them, it is noteworthy to notice that colors containing luminary are increasing adopted recently.
In this report, the color appearance in some polymeric thin-films without any colored substances such as dyes or pigments were examined. The color appearance in these thin-films is generated by the interference phenomena. A study has been made on the basis of following two standpoints: (i) examination of relation between the color appearance and the substrates surface morphologies, and (ii) investigation on the optimum spectral reflectance equation for thin-films on silicon wafer, which have an excellent chromatic effect.
The authors found that the color appearance in thin-films contains the regular reflective beam and decreases with the surface roughness of substrates. The discussion on the examination with the spectral reflectance curves of the thin-films on silicon wafer and some factors in the thin-film reflectance equation has revealed an optimum description for the experimental curves.
