LUMINESCENT PRODUCT, AND METHOD OF MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To suppress a curling phenomenon of a luminescent product molded by a centrifugal molding method while providing a white color layer which enhances light-storing performance on the luminescent product without adhering with an adhesive and without using a coating agent containing an organic solvent.

SOLUTION: A method of manufacturing a luminescent product comprises the steps of: mixing a first inorganic substance having a specific gravity greater than that of a urethane material with the urethane material; molding a molded article having two layers (21, 22) with different concentrations of the first inorganic substance; thereafter injecting a mixture prepared by mixing a second inorganic substance having a different function other than that of the first inorganic substance with the urethane material into the molded article; and overlaying a white color-reflecting layer 23 on the two layers (21, 22) by a centrifugal molding method.

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