摘要
为了增加天然环烯醚萜类化合物的数量和拓宽此类染料的色谱范围,选择龙胆苦苷进行结构修饰,并将修饰产物用于真丝绸的直接染色。探讨了龙胆苦苷结构修饰的原理及染色机理,利用紫外可见光谱分析了整个反应过程,确定了染色的最佳工艺,并测试了染色后真丝绸的色牢度和抗菌性能。结果表明:龙胆苦苷适合用苷交换的方法进行结构修饰,在修饰产物用量为真丝绸质量的5%、pH值7.5~8.0、染色温度50~60℃、染色时间90 min的条件下染色真丝绸的效果较好,色牢度很高,展示出一定的抗菌效果,最终色素的特征吸收波长为420 nm。该修饰产物可以开发成为一类全新的蛋白质纤维天然活性染料。
In order to increase the number of natural iridoids and broaden the chromatographic range of these dyes,gentiopicroside was selected for structural modification,and the modified products were used for the direct dyeing of silk fabric.The structure modification principle and dyeing mechanism of gentiopicroside were discussed.The whole reaction process was analyzed by UV-Vis spectroscopy,the optimum technological conditions of dyeing were determined,and the color fastness and antibacterial properties of the dyed silk fabric were tested.The results show that the gentian bitter glycosides is suitable for“glycosides exchange”method for structural modification.Under the conditions of 5%of the quality of silk fabric,pH value of 7.5~8.0,dyeing temperature of 50~60℃and dyeing time of 90 minutes,the dyeing effect of silk is better and the color fastness is high,showing a certain antibacterial effect,and the final characteristic absorption wavelength of pigment is 420 nm.The modified products can be developed into new natural reactive dyes for protein fibers dyeing.
作者
于颖
Yu Ying(Experimental Center,Eastern Liaoning University,DanDong,Liaoning 118000,China)
出处
《针织工业》
北大核心
2023年第9期50-54,共5页
Knitting Industries
基金
辽宁省教育厅2021年度科研经费重点项目(LJKZ1125)。
关键词
龙胆苦苷
结构修饰
真丝绸
染色
抗菌性能
色牢度
Gentiopicroside
Structural Modification
Silk Fabric
Dyeing
Antibacterial Properties
Color Fastness
