应用电子束辐照技术的棉织物抗菌整理工艺优化

Optimization on antibacterial finishing process of cotton fabric based on electron beam irradiation

为实现棉织物的高效抗菌,以氯苯咪唑为抗菌剂对棉织物进行抗菌整理,比较了轧烘焙、电子束辐照及等离子体预处理等方式对棉织物抗菌性能的影响。将整理剂质量分数、浸泡时间以及辐照剂量作为影响因素进行试验,得到电子束辐照的优化工艺条件为:整理剂质量分数15%、浸泡时间60 min、辐照剂量65 k Gy。对经轧烘焙工艺、电子束辐照工艺(EB工艺)、基于等离子体预处理的电子束辐照工艺(P-EB工艺)整理的棉织物进行表面形貌观察、红外光谱表征、抗菌性能及其耐洗牢度测试、断裂强力及白度测试。结果表明:3种工艺整理的棉织物均有效接枝氯苯咪唑,经P-EB整理的棉织物抗菌性能最优,并具有优异的耐洗牢度,且织物强力及白度均满足服用要求。

In order to realize efficient antibacterial performance of cotton fabrics, clotrimazole as antibacterial agent was grafted onto cotton fibers by antibacterial finishing,and the influence of pad-drycure,electron beam irradiation（EB） and plasma pretreatment（P-EB） on antibacterial properties of cotton fabrics was compared. The optimum condition of electron-beam irradiation was investigated by orthogonal experiments,including factors such as the concentration of finishing agent,soaking time and irradiation dose. The optimized process conditions of the electron-beam irradiation are concentration of finishing agent of 15%,soaking time of 60 min and irradiation dose of 65 k Gy. In addition,a series of standard tests were carried out on cotton fabrics finished by pad-dry-cure processing,electron beam irradiation processing and electron beam irradiation processing based on plasma pretreatment,including observation of surface morphology,infrared spectra characterization and antibacterial performance as well as fastness to washing,breaking strength and whiteness. The results show that clotrimazole is successfully grafted onto cotton fabrics finished by all the three finishing processes. Particularly,the antibacterial activity of cotton fabrics finished by P-EB is the most optimized,and the finished cotton fabric has excellent fastness to washing,and its breaking strength and whiteness meet apparel fabric standards.