MANUFACTURING METHOD OF FLUORESCENT MATERIAL

• Main Authors: HIOKI AYAKO, IMAI TOSHIO, KAIZAKI SUMIO
• Format: Patent
• Language: English; Japanese
• Published: 04.04.2019
• Subjects: ADHESIVES; CHEMISTRY; DYES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; POLISHES

To provide a manufacturing method of a fluorescent material capable of providing similar effect to burning in reduction atmosphere even under ambient air environment, and capable of manufacturing a fluorescent material emitting fluorescence from blue to green by ultraviolet irradiation.SOLUTION: A manufacturing method includes a process for accommodating a shell in a sealed container so that space volume based on weight of the shell of 100 g is 500 ml or less, and a process for burning the sealed container accommodating the shell in ambient air environment at a temperature of 700°C to 1000°C. Thereby, a fluorescent material having similar fluorescence property by burning in reduction atmosphere even by burning in the ambient air environment can be manufactured and similar effect to reduction burning can be obtained with a simple method. Since a raw material is shell to be wasted, waste can be effectively utilized.SELECTED DRAWING: Figure 6 【課題】大気雰囲気下でも還元雰囲気での焼成と同様の効果を得られ、紫外線照射により、青から緑の蛍光を発する蛍光材を作製することができる蛍光材の製造方法を提供する。【解決手段】貝殻の重量１００ｇに対して空間容積が５００ｍｌ以下となるように密封容器に前記貝殻を収容する工程と、前記貝殻を収容した密封容器を大気雰囲気、７００℃以上１０００℃以下の温度で焼成する工程と、を含む。これにより、大気雰囲気による焼成でも還元雰囲気による焼成と同様の蛍光特性を有する蛍光材を作製することができ、簡易な方法で還元焼成と同様の効果を得ることができる。また、原材料が廃棄される貝殻であることから、廃棄物を有効利用できる。【選択図】図６