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首页> 外文期刊>AATCC Review >The Evaluation of a Natural Pigment in Cotton as a UV Absorber
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The Evaluation of a Natural Pigment in Cotton as a UV Absorber

机译：棉花中天然色素作为紫外线吸收剂的评价

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The whiteness hue, and the higher UPF (ultraviolet protection factor) value of blank-bleached dyed cotton fabrics versus the UPF value of bleached dyed cotton fabrics, indicated the presence of a natural pigment in raw and blank-treated samples. Plain-woven, raw, lightweight cotton fabric was used. Desizing, blank bleaching, blank dyeing, and bleaching and dyeing processes were performed. CIE equations were used for determining sample whiteness and whiteness hue. Cover factor was calculated using the results of image analysis. Raw cotton fabric with the lowest cover factor had a 2.5x greater UPF value than bleached cotton fabric. The UPF value of bleached cotton fabric was ～3x lower than the UPF value of desized cotton fabric even though the two fabrics had almost the same cover factor.
机译：白度和空白漂白的染色棉织物的UPF（紫外线保护因子）值相对于漂白染色的棉织物的UPF值较高，表明在原始和空白处理的样品中存在天然色素。使用了平织的原始轻质棉织物。进行退浆，坯料漂白，坯料染色以及漂白和染色过程。 CIE方程用于确定样品的白度和白度。使用图像分析结果计算覆盖因子。覆盖系数最低的原棉织物的UPF值是漂白棉织物的2.5倍。漂白棉织物的UPF值比脱浆棉织物的UPF值低约3倍，即使两种织物的覆盖因子几乎相同。

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