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首页> 外文期刊>ACS Omega >Reverse Micellar Dyeing of Cotton Fiber with Reactive Dyes: A Study of the Effect of Water pH and Hardness
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Reverse Micellar Dyeing of Cotton Fiber with Reactive Dyes: A Study of the Effect of Water pH and Hardness

机译：活性染料对棉纤维的反胶束染色：水pH和硬度影响的研究

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摘要

Effects of hardness and the pH value of water in a water pool on PEG-based nonionic surfactant dyeing of cotton fiber with reactive dyes in a heptane reverse micelle system were investigated in terms of the color yield, reflectance, CIE L*a*b* value, and unlevelness. Results reveal that the effect of the water-pool pH value on the color yield and reflectance are more significant than the effect of hardness in the water pool. The dyed fabrics under an alkaline water-pool condition obtain a lower color yield and higher reflectance percentage than those under acidic and nearly neutral conditions. The increase of hardness in a water pool has higher influence on unlevelness of dyed samples than the increase or decrease of the pH value in a water pool. The changes in hardness and the pH value in a water pool did not result in a significant change in CIE L*a*b* values of dyed specimens, and no chromatic change was found in dyed fabrics. Excellent washing fastness results of the dyed fabrics, guaranteeing adequate removal of unfixed dyes, assure accuracy of the results in a spectrophotometric measurement.
机译：从色产量，反射率，CIE L * a * b *方面研究了水的硬度和水的pH值对庚烷反胶团体系中活性染料对棉纤维的PEG基非离子表面活性剂染色的影响。价值和不平稳性。结果表明，水槽pH值对颜色产量和反射率的影响比水池中硬度的影响更显着。与在酸性和接近中性的条件下染色的织物相比，在碱性水浴条件下的染色织物获得的色率更低，反射率更高。与增加或减少pH值在水池中相比，增加水池中的硬度对染色样品的不均匀性具有更大的影响。水池中硬度和pH值的变化不会导致染色样品的CIE L * a * b *值发生显着变化，在染色的织物中也不会发现颜色变化。染色后的织物具有出色的耐洗牢度结果，可确保充分除去未固定的染料，从而确保分光光度法测量结果的准确性。

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