亚铁离子质量浓度对黑牦牛绒纤维脱色的影响

Influence of different ferrous sulfate concentrations on bleaching of black yak fiber

针对预媒处理过程中亚铁离子在牦牛绒纤维脱色过程中的影响,对不同亚铁离子质量浓度下的纤维性能进行测试比较,并且为确保在不影响纤维可纺性的前提下尽量减少纤维损伤,对亚铁离子质量浓度进行了优选。在预媒处理过程中,采用不同质量浓度的亚铁离子对黑牦牛绒纤维进行脱色处理。利用白度仪、强力仪和扫描电镜等一系列测试方法分析了经脱色处理后的牦牛绒纤维的表面形态及力学性能的变化。结果表明,当亚铁离子质量浓度为12 g/L时,达到最好的脱色效果且对纤维的可纺性影响小。

In order to investigate the influence of the concentrations of ferrous ions on bleaching of black yak fibers in the treatment process,the properties of fibers at different concentrations of ferrous ions were tested and compared,and in order to minimize fiber damage on the premise that the spinnability of black yak fibers were not influenced,the best ferrous ions concentration had been obtained. The whiteness meter,strength tester,scanning electronic microscopy and other methods had been used to test the surface morphologies and properties of fibers. The result showed that when the concentration of ferrous ions was 12 g/L,the best decolorization effect of black yak fibers can be achieved,and the spinnablity of yak fibers was not influenced seriously by the bleaching process.