The interaction of dye molecules in different adsorption systems is diverse, which affects the adsorption process. In this work, the real-time adsorption process of CI Reactive Red 195 (RR195), CI Reactive Yellow 145 (RY145), and CI Reactive Blue 194 (RB194) in the actual dyeing process have been studied on cotton fabric by Raman spectroscopy. Three single, three binary, and one ternary system have been investigated at different temperatures (40, 50, 60, and 80°C). The equilibrium dye-uptake of RR195 and RY145 on cotton fabric decreased with the addition of other components, while that of RB194 remained unchanged. The temperature has little effect on the dyeing of cotton fabric with the RR195/RY145 system. The RR195/RB194 system is more suitable for high-temperature dyeing. RY145 is less affected by temperature below 60°C while dyeing at 80°C is greatly affected by temperature in the four systems. RB194 with a higher substantivity to the cotton fibre is less affected by temperature in the four systems. The batch adsorption rate data for the seven systems have been analysed based on pseudo-second-order kinetics. The results showed that the increase in temperature can accelerate the dyeing rate and time for dye adsorption to reach equilibrium. Activation parameters revealed the potential barrier that dyes need to overcome when dyeing cotton fabrics in different systems. In the actual combination dyeing process, the analysis of each component process can optimise the dye formulation and improve the dye utilisation.

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不同染色体系对多组分活性染料相互作用影响的拉曼光谱研究

染料分子在不同吸附体系中的相互作用是多种多样的，从而影响吸附过程。本工作利用拉曼光谱研究了CI活性红195（RR195）、CI活性黄145（RY145）和CI活性蓝194（RB194）在实际染色过程中对棉织物的实时吸附过程。已在不同温度（40、50、60 和 80°C）下研究了三个单、三个二元和一个三元系统。RR195和RY145在棉织物上的平衡上染率随着其他组分的加入而降低，而RB194的平衡上染率保持不变。温度对RR195/RY145体系对棉织物的染色影响不大。RR195/RB194体系更适合高温染色。RY145在60℃以下受温度影响较小，而80℃染色在四个体系中受温度影响较大。RB194对棉纤维具有较高的亲和性，在四个体系中受温度影响较小。已经基于伪二级动力学分析了七个系统的批量吸附率数据。结果表明，升高温度可以加快染色速度和染料吸附达到平衡的时间。活化参数揭示了染料在不同系统中染色棉织物时需要克服的潜在障碍。在实际混染过程中，对各组分工艺进行分析，可以优化染料配方，提高染料利用率。RB194对棉纤维具有较高的亲和性，在四个体系中受温度影响较小。已经基于伪二级动力学分析了七个系统的批量吸附率数据。结果表明，升高温度可以加快染色速度和染料吸附达到平衡的时间。活化参数揭示了染料在不同系统中染色棉织物时需要克服的潜在障碍。在实际混染过程中，对各组分工艺进行分析，可以优化染料配方，提高染料利用率。RB194对棉纤维具有较高的亲和性，在四个体系中受温度影响较小。已经基于伪二级动力学分析了七个系统的批量吸附率数据。结果表明，升高温度可以加快染色速度和染料吸附达到平衡的时间。活化参数揭示了染料在不同系统中染色棉织物时需要克服的潜在障碍。在实际混染过程中，对各组分工艺进行分析，可以优化染料配方，提高染料利用率。结果表明，升高温度可以加快染色速度和染料吸附达到平衡的时间。活化参数揭示了染料在不同系统中染色棉织物时需要克服的潜在障碍。在实际混染过程中，对各组分工艺进行分析，可以优化染料配方，提高染料利用率。结果表明，升高温度可以加快染色速度和染料吸附达到平衡的时间。活化参数揭示了染料在不同系统中染色棉织物时需要克服的潜在障碍。在实际混染过程中，对各组分工艺进行分析，可以优化染料配方，提高染料利用率。