Hu Qian, Wu Jindan, Qin Zhiqiang, Wei Xuanxiang, Jiang Chenchen, Wu Minghua, Yu Deyou, Wang Jiping
College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China.
Zheijiang Sci-Tech University Xiangshan Research Institute, Ningbo 315700, China.
Polymers (Basel). 2023 Aug 5;15(15):3314. doi: 10.3390/polym15153314.
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.
单根聚合物纤维去污力的测定对于筛选有效的洗衣洗涤剂至关重要，但仍具有挑战性。在此，我们展示了一种使用共聚焦激光扫描显微镜（CLSM）定量单根聚合物纤维去污力的新颖有效方法。它被用于可视化单根聚合物纤维的除油过程，从而评估各种洗涤剂的去污力。选择了四种典型表面活性剂进行比较，并且一种含有多种成分（例如阴离子和非离子表面活性剂、酶）的复合洗涤剂被证明是最有效且强力的去污洗涤剂，因为棉纤维上超过50%的油污能够轻易被去除。此外，通过共聚焦显微镜对三种纤维（即棉、粘胶和聚酯）的除油过程进行了成像和监测。发现单根聚酯纤维的去污百分比超过70%，远高于棉和粘胶纤维（约50%），这可能是由于其表面相对光滑。与传统方法相比，CLSM成像方法在测定单根聚合物纤维洗涤剂的去污力方面更可行且有效。
