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首页> 外文期刊>The Journal of the Textile Institute >Prevent redeposition of solid impurities during washing synthetic fabrics
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Prevent redeposition of solid impurities during washing synthetic fabrics

机译：防止在洗涤合成纤维时再沉积固体杂质

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摘要

The textile washing process involves basically three stages: (1) removing the soiling from the substrate, (2) suspending the soling removed in the washing bath and (3) preventing redeposition of the soiling onto the substrate from which it has just been removed. In fact, soiling removed from the substrate may have deposited on it to a greater or lesser extent during the detergent process, as unwanted phenomenon that can be avoided using appropriate polymers. Preventing the redeposition of impurities is especially important during the washing of synthetic fibres with a compact crystal structure such as polyester or acrylics. The primary purpose of this work was to assess the performance of a polyethylene glycol polyester copolymer used as a detergent additive to prevent redeposition of solid impurities during the washing of standard polyester and acrylic fabrics in terms of the zeta potential of the fabrics. The copolymer was used in combination with the anionic surfactant, sodium dodecylbenzenesulfonate, the non-ionic surfactant fatty alcohol ethoxylate with 7 mol E.O. or both in variable proportions. The soiling used as a solid impurity in the washing process was carbon black. The observed behaviour is explained in terms of the electrical double layer of the fabrics, which was characterised separately with each surfactant and their mixture.
机译：纺织品洗涤过程基本上包括三个阶段：（1）从基底上去除污物；（2）将去除的污物悬浮在洗涤浴中；（3）防止污物再沉积到刚从其上除去的污物上。实际上，在洗涤剂过程中，从基材上去除的污物可能或多或少地沉积在其上，这是使用适当的聚合物可以避免的不希望有的现象。在洗涤具有紧密晶体结构的合成纤维（如聚酯或丙烯酸类）时，防止杂质再沉积尤为重要。这项工作的主要目的是根据织物的ζ电位来评估用作洗涤剂添加剂的聚乙二醇聚酯共聚物的性能，以防止在洗涤标准聚酯和丙烯酸织物时固体杂质的再沉积。该共聚物与阴离子表面活性剂十二烷基苯磺酸钠，具有7 mol E.O的非离子表面活性剂脂肪醇乙氧基化物结合使用。或两者的比例都可变。在洗涤过程中用作固体杂质的污物是炭黑。观察到的行为是根据织物的电双层来解释的，该电双层分别用每种表面活性剂及其混合物表征。

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