基于β-环糊精包合技术的棉织物熏衣草芳香整理

Fragrant finishing of cotton fabric with lavender oil via β-cyclodextrin technology

为减少纺织品中功能性香精的挥发性,延长留香时间,利用β-环糊精(-βCD)独特的分子结构和包合性质,以薰衣草香精为例,采用浸渍法,使用索氏萃取以及紫外分光光度计,在正交试验设计基础上,研究包合时间、包合温度、pH值及乙醇与水质量比等包合条件对β-环糊精包合效果的影响。得到的最优包合条件:时间为2 h,温度为30℃,pH值为9,乙醇与水的质量比为1∶1。最优条件下,在经5%环糊精处理过的棉织物上,环糊精吸收香精比例可达81.65%,体现了其良好的包合性能。

For reducing the vapor pressure of volatile fragrances oil and increasing fragrance retention in functional textiles, fragrant finishing of cotton fabric is performed with lavender oil via inclusion technology using β-cyclodextin which has unique molecular structure and inclusion nature. The inclusion has been realized by immersion method under orthogonal experimental conditions. The influence of inclusion conditions on the ability of inclusion of β-cyclodextin has been studied. The lavender oil absorbed by β-cyclodextin is extracted by Soxhlet and its quantity is determined by the UV/VIS spectrometer. The results showed that the optimized inclusion conditions as follows： inclusion time 2 h, temperature 30 ℃, pH value 9 and quality proportion between alcohol and water 1 ： 1. Under optimized conditions, lavender oil included by β-cyclodextrin reaches up to 81.65% of β-cyclodextrin on the cotton fabric grafted by 5% β-cyclodextrin, this shows that the ability of inclusion of β-cyclodextrin is satisfactory.