Due to the hazardous impact of ultraviolet (UV) light, textiles with UV‐protective properties are in great demand. This paper is related to the equipment of polyester textiles, with three different organic and water‐insoluble UV absorbers containing a cinnamate basic structure. To apply the UV absorbers from water‐based recipes, they are combined with polyethylene glycol PEG200 and different dispersing agents. The application onto two different polyester textiles is performed with a conventional high temperature process driven at 130°C with a process duration of more than 1 hour. Alternatively, an innovative microwave‐assisted process of a shorter duration of only 15 minutes is performed at 130°C. This microwave process is performed under solvothermal conditions using a CEM discover microwave machine. The sample evaluation is performed by UV‐visible spectroscopy in an arrangement of diffusive transmission with a special view of the spectral region from 300 to 500 nm. Finally, polyester fabrics with enhanced UV‐protective properties are realised. It is possible to decrease the diffusive transmission for the complete range of UV light to values of smaller than 5%. By contrast, the influence on the interaction with visible light is low, so the coloration properties of the treated polyester fabrics are less affected. The developed process can be used to realise polyester fabrics for various UV‐protective applications by a simple approach. The developed microwave process allows a decrease in process duration to more than 75% compared with the analogously presented high temperature process.

中文翻译：

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低透过率的聚酯纤维的实现

由于紫外线（UV）的有害影响，对具有紫外线防护特性的纺织品的需求量很大。本文与聚酯纺织品的设备有关，具有三种包含肉桂酸酯基本结构的有机和水不溶性紫外线吸收剂。要使用水性配方中的紫外线吸收剂，请将其与聚乙二醇PEG200和不同的分散剂结合使用。用常规的高温工艺在130°C的驱动下，在两种不同的聚酯纺织品上进行涂布，处理时间超过1小时。或者，在130°C下执行仅15分钟的较短持续时间的创新微波辅助过程。使用CEM Discover微波机在溶剂热条件下执行此微波过程。通过紫外可见光谱以扩散透射的方式对样品进行评估，并特别观察300至500 nm的光谱区域。最后，实现了具有增强的紫外线防护性能的聚酯织物。可以将整个紫外线范围的扩散透射率降低到小于5％的值。相反，对与可见光相互作用的影响很小，因此处理过的聚酯织物的着色性能受到的影响较小。所开发的工艺可通过一种简单的方法来实现用于各种紫外线防护应用的聚酯织物。与类似的高温工艺相比，开发的微波工艺可以将工艺持续时间减少到75％以上。