高光洁处理对聚酰亚胺短纤纱及其织物性能的影响  

Effect of high smooth treatment on polyimide staple yarns and its fabric properties

作　　者：缪莹 熊诗嫚 郑敏博 唐建东 张慧霞 丁彩玲 夏治刚 MIAO Ying;XIONG Shiman;ZHENG Minbo;TANG Jiandong;ZHANG Huixia;DING Cailing;XIA Zhigang(School of Textile Science and Engineering,Wuhan Textile University,Wuhan,Hubei 430200,China;State Key Laboratory of New Textile Materials and Advanced Processing Technologies,Wuhan Textile University,Wuhan,Hubei 430200,China;Jihua 3542 Textile Co.,Ltd.,Xiangyang,Hubei 441002,China;Shandong Ruyi Technology Group Co.,Ltd.,Jining,Shandong 272073,China;State Key Laboratory of Bio-Fibers and Eco-Textiles,Qingdao University,Qingdao,Shandong 226071,China)

机构地区：[1]武汉纺织大学纺织科学与工程学院,湖北武汉430200 [2]武汉纺织大学省部共建纺织新材料与先进加工技术国家重点实验室,湖北武汉430200 [3]际华三五四二纺织有限公司,湖北襄阳441002 [4]山东如意科技集团有限公司,山东济宁272073 [5]省部共建生物多糖纤维成形与生态纺织国家重点实验室,山东青岛226071

出　　处：《纺织学报》2023年第2期118-127,共10页Journal of Textile Research

基　　金：省部共建生物多糖纤维成形与生态纺织国家重点实验室(青岛大学)开放课题项目(KF2020215);湖北省重点研发计划项目(2021BAD003)。

摘　　要：针对聚酰亚胺(PI)短纤维纺纱静电大、成纱毛羽多、后加工摩擦剧烈导致纱线品质大幅恶化的问题,创新提出了在后加工终端对多毛羽PI单纱进行高光洁处理的方法。通过研制纱线高光洁处理装置和理论模拟,分析了该装置引纱区与涡流包缠关键区的作用机制,应用装置的湿热涡流处理多毛羽PI单纱,并将处理前后的PI单纱实施倍捻和织造,获得PI股线及其织物。结果表明:与处理前相比,高光洁处理后的PI单纱有害毛羽去除率为97.69%、耐磨性提高48.84%,PI股线有害毛羽去除率为64.67%、耐磨性提高40.89%;处理后纱线所织造织物的柔软性、透气性、抗起毛起球性、抗静电性均得到改善。Objective Polyimide(PI) has excellent stability and mechanical properties and is widely used in various industries. PI staple yarn shows good mechanical properties, flame retardancy, high-temperature resistance and other properties. However, PI staple yarn is difficult to spin creating high level of yarn hairiness, and the yarn also has serious problem of static electricity. PI yarn hair is long, causing hair entanglement, resulting in unclear shed openings and yarn breakage during weaving, and the PI fabric is easy to pilling negatively affect the fabric appearance. Because of the above problems, this paper proposes an innovative idea of high smooth treatment of hairy PI single yarn at the end of yarn post-processing to efficiently achieve the transformation of low-quality PI yarn to high-quality PI yarn.Method Based on this idea, a high smooth and clean yarn processing device was developed, and the mechanism of the key area of yarn leading and eddy current wrapping was simulated and analyzed theoretically. The device applied the wet heat eddy current to treat the multi-hair PI single yarn, and the PI single yarn and its fabric were obtained by double-twisting and weaving before and after the processing.Results A three-dimensional numerical simulation model for the ingot fluid region of the high smooth treatment device was established(Fig. 3). The simulation results of the yarn drawing stage(Fig. 4) showed that strong suction was generated in the device before the yarn entered the wrapping device to ensure the smooth entry of the yarn into the device. The simulation results of the normal high smooth and clean spinning stage(Fig. 5) showed that the turbulence phenomenon under normal treatment was more obvious than that in the yarn drawing stage. Due to the presence of backflow and high-speed airflow, the hairiness of the wooly yarn was greatly reduced and the strength was improved after the device treatment. Based on theoretical analysis, the yarn and fabric experiment results was analyzed before and after the tr

关 键 词：聚酰亚胺 高光洁处理 毛羽 数值模拟 纱线性能 织物性能 

分 类 号：TS102[轻工技术与工程—纺织工程]