活性翠蓝镨染料的制备及其光谱性能

Preparation of Reactive Bright Blue Praseodymium Dyestuff and Its Spectral Properties

以活性翠蓝和氧化镨为原料 ,制备了活性翠蓝镨染料。用该染料对真丝绸进行了染色 ,分别测定了活性翠蓝、活性翠蓝镨的紫外 可见光吸收光谱以及染色后真丝绸的红外光谱。在 2 0 0～ 80 0nm范围内 ,活性翠蓝有 4个吸收峰 ,最大吸收峰的波长为 2 5 9 0 0nm ,在可见光范围内活性翠蓝有 2个吸收峰 ,最大吸收峰的波长为 6 6 1 5 0nm ;活性翠蓝镨有 3个吸收峰 ,最大吸收峰的波长为 2 6 4 0 0nm ,在可见光范围内只有 1个吸收峰 ,最大吸收峰的波长为 6 18 0 0nm。活性翠蓝与镨离子是以配位键相结合 。

Reactive bright blue praseodymium dyestuff was prepared by using reactive bright blue and praseodymium oxide. The spectra of reactive bright blue praseodymium and dyed silk cloth by reactive bright blue praseodymium dyestuff were studied by UV-Vis and IR spectra respectively. In the range of 200-800 nm, reactive bright blue has four absorption peaks, and lambda(max) is 259 nm; reactive bright blue praseodymium has three absorption peaks, while lambda(max) is 264.00 nm. In the range of 420-760 nm, reactive bright blue has two absorption peaks at 661.50 and 625.50 nm, respectively, and lambda(max) is 661.50 nm; reactive bright blue praseodymium has only one absorption peak at 618.00 nm. Coordinate bond links reactive bright blue to praseodymium ion. Reactive bright blue praseodymium increases linking radicals as compared with reactive bright blue.