Abstract

Herein the research on coloration of polystyrene (PS) microfibers with disperse dyes by the pad-dry-cure method has been reported. The PS microfibers were fabricated via electrospinning technique and pretreated with a wetting agent (Hostapal MRN) for 5 min prior to padding in dye liquor for over-coming hydrophobicity and improving dye up-take. The microfiber samples were dipped and nipped twice in the dye solutions and between the padding-mangles, respectively. The curing temperature and curing time were optimized to be 80 °C and 90 s, respectively. The influence of effect of dye concentrations on K/S values was also studied. Highest K/S values were obtained at 3% dye concentrations. The optimized samples demonstrated good to very good color bleeding resistance in color fastness to washing, light and hot-pressing. The scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) did not show any significant effect of the dyeing process on morphology and chemical structures of the PS microfibers.

摘要

在本文中，已经报道了通过垫干固化法用分散染料对聚苯乙烯（PS）微纤维进行着色的研究。PS超细纤维是通过静电纺丝技术制造的，并用润湿剂（Hostapal MRN）预处理5分钟，然后浸入染液中以克服疏水性并改善染料吸收。将微纤维样品分别浸入和浸入染料溶液中两次，并浸入浸染角之间。固化温度和固化时间分别优化为80°C和90 s。还研究了染料浓度对K / S值的影响。最高K / S在3％染料浓度下获得数值。经过优化的样品在耐洗，耐光和热压色牢度方面表现出极佳的抗色差性。扫描电子显微镜（SEM）和傅里叶变换红外光谱（FTIR）并未显示染色过程对PS超细纤维的形态和化学结构有任何显着影响。