羊毛纤维分散染料染色性能研究

Dyeing behaviour of wool fibre with disperse dyes

系统研究了阳离子改性及未改性羊毛纤维在十二烷基苯磺酸钠 (SDBS)和复配助剂存在下用分散染料染色的性能。确定其最佳染色工艺 ,评定其染色效果 ,并对其染色机理作了初步探讨。结果表明 ,分散染料染羊毛纤维是可行的 ,而且染色制品匀染性好 。

The dyeing behaviours of cation modified wool fibre and unmodified wool fibre dyed with disperse dyes were investigated systemtically in the presence of combination of sodium dodecyl benzene sulfonate (SDBS) and the benzenmethnol.The optimum dyeing technology was determined and the dyeing effect was evaluated and the dyeing mechanism was explored simply.The results showed that wool fibre dyed with disperse dyes is feasible and the dyeing fibre has better even dyeing and bright colour. Key words:disperse dyes;wool fibre;dyeing behaviour sulfate on the dropping mercury electrode in a buffer solution of 0.025mol·L -1 HOAc NaOAc (pH 5.0) was investigated. A sensitive reduction wave appeared at -1.04V( vs .SCE). Unter the optimum conditions, the linear range of the 2nd order derivative osillopolargraphic current ( i p) is 0.1~0.8mg·L -1 for the formaldehyde. The results showed that the determination of formaldehyde is not interfered by various coexisting ions, colour and turbidity in beverage. The method was found to be highly specific, simple, rapid and convenient. It has been applied to the direct determination of trace amounts of free formaldehyde in beverages by standard addition method. The analytical frequency of the method is 60 samples/h.