HIGHLY DECORATIVE BASE MATERIAL FOR SHINNING EMBLEM AND MANUFACTURING METHOD THEREFOR

PROBLEM TO BE SOLVED: To provide a base material for an emblem, which is highly decorative regardless whether day or night by allowing a certain quantity of light to pass through not only the outer contour of the base material for the emblem but also the contour of a shaped part such as a character, figure, and so on, and to provide a manufacturing method therefor.SOLUTION: A base material for an emblem, using transparent resin, comprises: a shaped part having the form of a character, figure and/or symbol, which has metallic luster; a light transmission part that frames the shaped part and allows transmission of light; and a body part, other than the shaped part and light transmission part. In a case where the light transmissivity of the light transmission part from the back of the base material for the emblem to the surface thereof and the light transmissivity of the body part from the back of the base material for the emblem to the surface thereof are measured in the range of 380 nm to 700 nm, the wavelength at which the light transmission part has the maximum value is longer than the wavelength at which the body part has the maximum value. 【課題】エンブレム用基材の外輪郭だけでなく、文字や図形等の造形部の輪郭についても、有る程度の光量が透過するようにすることで、昼間、夜間にかかわらず、高い装飾性が得られる光るエンブレム用基材とその製造方法を提供する。【解決手段】透明樹脂を用いたエンブレム用基材であり、金属光沢を有する文字、図形及び／又は記号を形成する造形部と、造形部を縁取り、光の透過が可能な透光部と、造形部及び透光部以外の本体部とを有し、透光部におけるエンブレム用基材の裏面から表面への光透過率と、本体部におけるエンブレム用基材の裏面から表面への光透過率とを、３８０ｎｍ〜７００ｎｍで測定した場合、透光部の最大値を示す波長が本体部の最大値を示す波長よりも大きいエンブレム用基材。【選択図】なし