Nonwoven spunbonded polyester has wide applications for both household goods and home furnishings and their usage has continually been growing. Nowadays, coloration of nonwoven fabrics is performed using conventional methods. Conventional polyester dyeing is an energy-intensive process as the dyeing is carried out above 120 ^oC to obtain efficient diffusion of dye. Furthermore, these high temperatures may cause some harmful effects on delicate nonwoven structures. Ultrasound assisted textile dyeing is an alternative method of conventional dyeing of textile materials, providing energy saving by reduced process temperature and time, lower consumptions of auxiliaries with increased dyeing efficiency. This paper focuses on comparing the conventional (high temperature (HT) and carrier dyeing) and ultrasonic dyeing of nonwoven spunbonded polyester fabrics to investigate the effect of ultrasound energy on dyeing performance. Experimental results indicated that highest or comparable dyeing performance can be achieved with ultrasound dyeing at lower temperature (85 ⁰C, 60 min.) without carrier as compared to carrier dyeing (100 ^oC, 60 min.) and HT dyeing (130 ⁰C, 60 min.), providing an increase of dye depth depending on the dye concentration and basis weight of the fabric. It was evidently seen that highest basis weight of fabric (107 g/m²) used in this study exhibited greater color yield for each dye concentrations (K/S value of 4.90 at 0.2% dye concentration) as compared to conventional ones. The effect of ultrasound energy on reductive washing and fastness properties were also evaluated.

非织造纺粘聚酯在家庭用品和家居装饰中都有广泛的应用，并且其用途一直在增长。如今，非织造织物的着色是使用常规方法进行的。传统的涤纶染色是一种能源密集型工艺，因为染色需要在120 ^o以上的温度下进行C获得染料的有效扩散。此外，这些高温可能会对脆弱的非织造结构造成一些有害影响。超声波辅助的织物染色是织物材料常规染色的另一种方法，可通过降低工艺温度和时间来节省能源，降低辅料的消耗量，并提高染色效率。本文着重比较非织造纺粘聚酯织物的常规（高温（HT）和载体染色）和超声染色，以研究超声能量对染色性能的影响。实验结果表明，与载体染色（100相比）相比，在没有载体的情况下在较低温度（85 ⁰ C，60分钟）下进行超声染色可以实现最高或相当的染色性能。^o C，60分钟。）和HT染色（130 ⁰ C，60分钟），根据染料的浓度和织物的基重，染料深度会增加。显然可以看出，与传统的织物相比，本研究中使用的最高织物单位重量（107 g / m ²）对于每种染料浓度（在0.2％的染料浓度下的K / S值为4.90）表现出更高的颜色产量。还评估了超声能量对还原洗涤和牢度特性的影响。