Near‐ and short‐wave IR emission spectra of printed cotton/nylon blend fabrics coated with inorganic compounds in order to tune their diffuse reflectance behavior to the ones with woodland and desert backgrounds are investigated. In this regard, cotton/nylon blend fabrics printed with a four‐color digital pattern were used as the substrate, and different concentrations of zirconium and cerium dioxide (ZrO₂ and CeO₂) with and without citric acid as a cross‐linker were loaded on these fabrics using the pad‐dry‐cure method. The diffuse reflectance of the coated fabrics with various concentrations of nanoparticles and a cross‐linker was first measured by near‐infrared (NIR) diffuse reflectance spectroscopy (DRS). Then, fabrics with an optimum concentration of nanoparticles and appropriate reflectivity profiles similar to woodland and desert were investigated by field emission scanning electron microscopy (FE‐SEM), energy‐dispersive spectroscopy (EDS), washing, and rubbing fastness properties. In general, NIR and short‐wave infrared (SWIR) reflectance of fabrics coated with ZrO₂ and CeO₂ nanoparticles in range of 1% to 1.5% (w/v [%]) was suitable for matching with different environments. According to the findings obtained from the durability test, it was concluded that the washing fastness of the treated fabrics with CeO₂ nanoparticles was excellent in both environments. FE‐SEM images of the treated fabrics containing ZrO₂ and CeO₂ indicated that the presence of nanoparticles on the surface of fabrics in woodland patterns was greater than the desert ones. However, the coated fabrics with CeO₂ and citric acid in the woodland pattern have shown better dispersion with a mean particle size of 30 to 60 nm.

中文翻译：

---

锆和二氧化铈和柠檬酸处理的棉/尼龙混纺织物在近波和短波红外辐射光谱范围内的漫反射特性

研究了涂有无机化合物的棉/尼龙混纺织物的近红外和短波红外发射光谱，以便将其漫反射特性调整为具有林地和沙漠背景的织物。在这方面，使用印有四色数字图案的棉/尼龙混纺织物作为基材，并使用不同浓度的锆和二氧化铈（ZrO ₂和CeO ₂使用垫干固化法将含或不含柠檬酸作为交联剂的）加载到这些织物上。首先通过近红外（NIR）漫反射光谱（DRS）测量具有各种浓度的纳米粒子和交联剂的涂层织物的漫反射率。然后，通过场发射扫描电子显微镜（FE‐SEM），能量色散光谱（EDS），耐洗和耐摩擦牢度特性，研究了具有最佳纳米粒子浓度和类似于林地和沙漠的适当反射率特征的织物。通常，涂有ZrO ₂和CeO ₂的织物的NIR和短波红外（SWIR）反射率1％至1.5％（w / v [％]）范围内的纳米颗粒适合与不同环境匹配。根据从耐久性测试中获得的发现，可以得出结论，用CeO ₂纳米颗粒处理的织物在两种环境下的耐洗牢度都非常好。含有ZrO ₂和CeO ₂的经过处理的织物的FE-SEM图像表明，林地模式下织物表面上纳米颗粒的存在大于沙漠表面。然而，在林地图案中具有CeO ₂和柠檬酸的涂布织物显示出更好的分散性，其平均粒径为30至60nm。