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- 저자 : Kuanjun Fang (검색결과 1 건)
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Yi Xu,Kuanjun Fang,Weichao Chen,Xiangwu Zhang,Chunming Zhang 한국섬유공학회 2022 Fibers and polymers Vol.23 No.9
This paper develops a new clean production technology combining atmospheric pressure plasma jets and nanochitosanto prepare strong and durable bio-based coatings for improving the inkjet printing performance of antimicrobial silkfabrics. The key contribution of this study is to introduce green and environmental friendly production methods, avoiding theuse of chemicals and pollution caused by dye hydrolysis in traditional ways. By contradistinctive experiments, we presentdirect empirical evidence that the plasma-chitosan treatment can significantly improve the hydrophilicity of the silk surfaces. Wettability test indicates that the infiltration time of droplet on the surface of modified silk fabric was only 1/12 of the timespent on the untreated sample. The study of reactive dye inkjet printing illustrates that the antibleeding property on modifiedsamples was evidently enhanced. Meanwhile, in respect of color fixation of reactive dyes, there was also an increase in K/Svalue on modified samples, ranging from 76 % to 214 % in color depth of the four-color print blocks, even after gas steamingand washing. Scanning electron microscope (SEM) observation reveals that the surface of silk fibers modified with plasma iscovered with firmer and more uniform chitosan coatings in terms of morphology change. X-ray photoelectron spectroscopy(XPS) analysis verifies that the content of oxygenous groups on the silk fabric processed by plasma-chitosan increased bymore than 42 %. As to the antibacterial effect of nano-chitosan, the photographs of inhibition zone shows that the plasmaprocessing effectively enhanced the durability of chitosan against B. subtilis, and thus prepared long-lasting antibacterial silkfabric. Furthermore, measurements of washing and rubbing color fastness prove that the plasma-chitosan treated fabrics stillhad excellent inkjet printing effect even after 45 cycles of soaping. Taken together, it turns out that such nontoxic,nonpolluting, low energy-consumed chitosan coating combining with plasma can explicitly provide an innovative option forthe production of inkjet printing on natural fabrics.
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