A thermoplastic film 10 is a thermoplastic film comprising a light-emitting layer 11, wherein the light-emitting layer 11 comprises a thermoplastic resin and a light-emitting material that emits light by being irradiated with excitation light, and a change in yellowness of laminated glass obtained by bonding two sheets of clear glass in accordance with JIS R 3211(1998) having a thickness of 2.5 mm with the thermoplastic film interposed therebetween after conducting a light resistance test for 2000 hours based on JIS R3205 2005 is 4 or less. The present invention provides a thermoplastic film comprising a light-emitting material, in which the emission intensity is unlikely to lower even when the thermoplastic film is exposed to ultraviolet rays for a long period of time.
一种热塑性薄膜10是一种包含发光层11的热塑性薄膜,其中发光层11由热塑性
树脂和
发光材料组成,该
发光材料通过被激发光照射而发光,并且在根据JIS
R3205 2005进行2000小时耐光性测试后,将两片厚度为2.5毫米、中间夹有热塑性薄膜的符合JIS R 3211(1998)的透明
玻璃粘合而得到的夹层
玻璃的黄度变化为4或以下。本发明提供了一种包含
发光材料的热塑性薄膜,即使该热塑性薄膜长期暴露在紫外线下,其发光强度也不会降低。