PDF(Pubmed)
Abstract：
Detergency determination for single polymeric fibers is of significant importance to screening effective detergents for laundry, but remains challenging. Herein, we demonstrate a novel and effective method to quantify the detergency for single polymeric fibers using a confocal laser scanning microscope (CLSM). It was applied to visualize the oil-removing process of single polymeric fibers and thus assess the detergency of various detergents. Four typical surfactants were selected for comparison, and a compounded detergent containing multiple components (e.g., anionic and nonionic surfactants, enzymes) was demonstrated to be the most effective and powerful soil-removing detergent because more than 50% of oil on the cotton fiber could be easily removed. Moreover, the oil removal process of three kinds of fibers (i.e., cotton, viscose, and polyester) was imaged and monitored by confocal microscopy. It was found that the percentage of the detergency of a single polyester fiber exceeded 70%, which is much higher than that of cotton and viscose fibers (~50%), which may be due to its relatively smooth surface. Compared to traditional methods, the CLSM imaging method is more feasible and effective to determine the detergency of detergents for single polymeric fibers.
摘要：
单聚合物纤维的去污力测定对于筛选用于洗衣的有效洗涤剂具有重要意义。但仍然具有挑战性。在这里，我们展示了一种使用共聚焦激光扫描显微镜（CLSM）量化单聚合物纤维去污力的新颖有效方法。它用于可视化单个聚合物纤维的除油过程，从而评估各种洗涤剂的去污力。选择了四种典型的表面活性剂进行比较，和含有多种组分的复合洗涤剂(例如，阴离子和非离子表面活性剂，酶）被证明是最有效，最强大的去污洗涤剂，因为棉纤维上超过50％的油可以很容易地去除。此外，三种纤维的除油过程(即棉花,粘胶,和聚酯）通过共聚焦显微镜成像和监测。发现单根聚酯纤维的去污力百分比超过70％，远高于棉和粘胶纤维（〜50％），这可能是由于其相对光滑的表面。与传统方法相比，CLSM成像方法对单根高分子纤维洗涤剂的去污力测定更为可行和有效。
