碱处理对直纺型超纤革透气性能及手感提升研究  

Research on the effect of alkaline treatment on the breathability and hand feel improvement of direct spinning superfiber leather

作　　者：赵凯迪 刘延辉 张建林 刘文聚 张元明[1] ZHAO Kaidi;LIU Yanhui;ZHANG Jianlin;LIU Wenju;ZHANG Yuanming(College of Textiles and Clothing,Qingdao University,Qingdao 266071,China;Shandong Changnuo New Materials Technology Co.,Ltd.,Linyi 273400,China;Linyi Yujie New Materials Co.,Ltd.,Linyi 273400,China)

机构地区：[1]青岛大学纺织服装学院,山东青岛266071 [2]山东昌诺新材料科技有限公司,山东临沂273400 [3]临沂昱洁新材料有限公司,山东临沂273400

出　　处：《南通大学学报（自然科学版）》2024年第2期89-94,共6页Journal of Nantong University(Natural Science Edition)　

基　　金：山东省重大科技创新工程项目(2020CXGC011101)。

摘　　要：直纺型超纤革是以直纺型超细超短涤纶纤维非织造布为基布,并含浸水性聚氨酯涂料,经过一系列复杂工艺加工而成的新一代人工合成革。针对直纺型超纤革存在透气性能和手感差的问题,采用不同浓度的碱液对其中的涤纶纤维进行刻蚀,探讨了碱液质量分数和碱处理工序对直纺型超纤革透气性能和手感的影响。采用万能材料试验机、透气仪、法宝仪,分别对碱处理后的直纺型超纤革的力学性能、透气性能、相对手感值、柔软度、平滑度、悬垂度进行分析。结果表明:碱处理有利于直纺型超纤革透气性能和手感的提升;先对基布进行碱处理然后含浸水性聚氨酯工序较先含浸水性聚氨酯后进行碱处理工序,有利于直纺型超纤革力学性能的保持,且直纺型超纤革柔软度、透气性和相对手感值等卫生性能更优,当碱质量分数为10%时,与基布相比其力学强度基本保持不变,而柔软度提升了71.7%,透气率提升了67%,相对手感值为17.1%。Direct spinning microfiber leather is a new generation of artificial synthetic leather made from direct spinning ultra-fine and ultra-short polyester fiber non-woven fabric as the base fabric,containing a water-based polyurethane coating,and processed through a series of complex procedures.This study addresses the issues of poor breathability and tactile sensation in direct spinning microfiber leather.Different concentrations of alkaline solution were used to etch the polyester fibers,and the effects of alkaline solution mass fraction and different alkaline treatment processes on the breathability and tactile sensation of direct spinning microfiber leather were investigated.The mechanical properties,breathability,relative tactile value,softness,smoothness,and drape of alkali-treated direct spinning microfiber leather were analyzed using a universal strength machine,breathability tester,and other instruments.The results show that alkaline treatment improves the breathability and hand feel of direct spinning microfiber leather.Alkali treatment of the base cloth followed by aqueous polyurethane impregnation better retains the mechanical properties of direct-spun microfiber leather compared to impregnation with polyurethane followed by alkali treatment.Furthermore,the hygienic properties of direct spinning microfiber leather,such as softness,breathability,and relative tactile value,are enhanced.When the alkali mass fraction was 10%,the mechanical strength remained basically unchanged compared to the base fabric,while the softness increased by 71.7%,the breathability increased by 67%,and the relative tactile value was 17.1%.

关 键 词：碱处理 超纤革 直纺型超纤革 透气性能 手感 

分 类 号：TH145.22[一般工业技术—材料科学与工程]