ABSTRACT

The fluorescent hue is brilliant and attractive, and is usually used in outdoor, traffic, and teenage clothes industry, as well as in marker and fields of warning signs. But the fluorescence coloration of natural fibers with fluorescent dyes is rare because of the inherent polymeric and optical property of natural fibers, and the dyes state on fiber. The wool fabrics can be colored with pigments emulsion or water dispersions by exhaustion process. In this paper, the wool fabrics were colored with fluorescent pigment emulsions by padding, and their dyeing properties were investigated by color measurement, spectrofluorometer, SEM, TG, and fastness testing. The color data, dominant wavelength (or complementary wavelength), and excitation purity of colored samples were measured and illustrated with chromaticity diagram. The fluorescence spectrum of colored samples was tested as well. The results showed, with the raise of amount of pigments emulsion, the K/S value, reflectivity, durability, and shrinkage of colored samples increased, whereas the softness decreased. There were FRET (fluorescence resonance energy transfer) phenomena in the colored samples. The fluorescent pigments emulsion deposited on the fabrics as resins between the wool fibers. The migration and rubbing fastnesses of all samples were good and were at grade 4 or above, but the light fastnesses were not good, and only at grade 3 or grade 3–4.

摘要

荧光色调艳丽迷人，常用于户外、交通、童装行业，以及标识、警示标志等领域。但由于天然纤维固有的聚合物和光学特性，以及染料在纤维上的状态，荧光染料对天然纤维的荧光着色很少见。毛织物可以用颜料乳液或水分散体通过浸染法着色。本文采用荧光颜料乳液对羊毛织物进行浸轧染色，并通过测色、荧光分光光度计、扫描电镜、热重和牢度测试对其染色性能进行了研究。测量有色样品的颜色数据、主波长（或互补波长）和激发纯度，并用色度图说明。还测试了有色样品的荧光光谱。结果表明，随着颜料乳液用量的增加，有色样品的K/S值、反射率、耐久性和收缩率增加，而柔软度降低。有色样品中存在 FRET（荧光共振能量转移）现象。荧光颜料乳液作为羊毛纤维之间的树脂沉积在织物上。所有样品的迁移牢度和摩擦牢度都很好，在4级或以上，但耐光牢度不好，只有3级或3-4级。