The present paper focuses on the development of novel smart fabrics having warning photoluminescent properties that keep light emitting for a period of time in the absence of an illumination source. Phosphorescence commonly brings added value for safety enhancement. Herein, we introduce a textile material coated with a photoluminescent layer. Dysprosium- and europium-doped strontium aluminate phosphor were admixed with a mixture of an adhesive binder and distilled water to afford the pigment–binder formula which was then applied directly onto wool fabric using a spray-coating technique. Results indicated that the optimal excitation wavelength of the coated fabric occurred at 365 nm, and an emission peak was also observed at 517 nm. A homogeneous phosphorescent layer was assembled on the surface of the wool fabric relying on the pigment concentration existing in the pigment–binder formula. This coated layer represents a substantial development of greenish-yellow, bright white, turquoise, and off-white colors as described by the CIE Lab color space data under ultraviolet irradiation. The decay curves and lifetime of phosphorescence were investigated. The fluorescent optical microscopy results, energy dispersive X-ray analysis, photoluminescence spectroscopic data, scanning electron microscopy images, and elemental mapping are described. The comfort properties of treated wool fabrics were evaluated by studying their stiffness and air permeability.

中文翻译：

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通过掺Eu（II）的铝酸锶喷涂方便地开发光致发光织物

本发明致力于具有警告光致发光性能的新型智能织物的开发，该织物在没有照明源的情况下保持发光一段时间。磷光通常为增强安全性带来附加价值。在此，我们介绍一种涂覆有光致发光层的纺织材料。将掺and和euro的铝酸锶锶磷光体与粘合剂和蒸馏水的混合物混合，得到颜料-粘合剂配方，然后使用喷涂技术将其直接涂在羊毛织物上。结果表明，涂​​覆的织物的最佳激发波长在365nm处发生，并且在517nm处也观察到发射峰。依赖于颜料-粘合剂配方中存在的颜料浓度，在羊毛织物的表面上组装了均匀的磷光层。如CIE Lab色彩空间数据在紫外线照射下所描述的，该涂层代表了黄绿色，亮白色，绿松石和灰白色的显着发展。研究了磷光的衰减曲线和寿命。描述了荧光光学显微镜的结果，能量色散X射线分析，光致发光光谱数据，扫描电子显微镜图像和元素图谱。通过研究羊毛织物的刚度和透气性来评估其舒适性。绿松石和灰白色，如CIE Lab色彩空间数据在紫外线照射下所述。研究了磷光的衰减曲线和寿命。描述了荧光光学显微镜的结果，能量色散X射线分析，光致发光光谱数据，扫描电子显微镜图像和元素图谱。通过研究羊毛织物的刚度和透气性来评估其舒适性。绿松石和灰白色，如CIE Lab色彩空间数据在紫外线照射下所述。研究了磷光的衰减曲线和寿命。描述了荧光光学显微镜的结果，能量色散X射线分析，光致发光光谱数据，扫描电子显微镜图像和元素图谱。通过研究羊毛织物的刚度和透气性来评估其舒适性。