Glossy Plating has already been used for diverse practical applications. Therefore the surface treatment engineers know how to enhance glossiness by changing the plating conditions. However, a material's surface tone which includes glossiness, color, etc. should incorporate the human factor (for user-friendliness) into its design. This means that the human impression of a material's surface tone must be quantified in some way. For this purpose a psychological process, called "semantic differential technique" was used in the study. This technique was applied to several kinds of glossy plating specimens and the correlations between plating conditions, glossiness and human impressions were calculated quantitatively. The results were evaluated in terms of applicability to the practical plating design.
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