The flame-retardant cotton fabric used for welding protective clothing in the market exhibits insufficient melt hole resistance. We evaluated the stainless steel filament fabric for flame retardancy and melt hole resistance and found that it lacked sufficient comfort. A stainless steel filament and a cotton yarn were plied and twisted together and then woven following a set of specifications. The fabric was finished with a flame retardant, and its performance and flame retardancy were determined. The results indicate that the twist direction during ply twisting affects the fabric performance. Relative to the pure cotton fabric, the stainless steel filament/cotton composite fabric exhibits reduced comfort properties, such as moisture permeability and air permeability, but the mechanical properties and flame retardancy are improved. Ply twisting a stainless steel filament and a pure cotton yarn with an S twist presents certain advantages in enhancing the comprehensive performance of the fabric and exhibits potential for advancements in welding protective clothing.
Stainless steel fiber exhibits excellent flame retardancy and melting resistance, but it lacks thermal and moisture comfort. To compensate for these shortcomings, stainless steel fiber was blended with Lyocell fiber in ratios of 0/100, 10/90, 20/80, and 30/70%. The blended yarn was then formed into a single-sided plain stitch fabric of stainless steel fiber and finished with a phosphorus-nitrogen flame retardant. Next, the effects of the blending ratio on the fundamental properties, thermal and moisture comfort, and flame retardancy of the blended yarn and its fabric were studied. Considering these parameters alongside cost, the 10% stainless steel fiber-blended fabric was the optimal choice and showed potential applications for updating and upgrading welding service fabrics.
To cultivate outstanding engineering talent capable of both adapting to and spearheading regional economic and social progress, as well as to facilitate the transformation and advancement of local economies and to promote collaboration between universities and regional economies, practical teaching bases should be established. Through the strategic alignment and interactive development of practical teaching bases, it may be possible to deepen the integration between industry and education, as well as the interactions between universities and enterprises. Thus, successful teaching bases leverage the academic strengths of universities and the resources offered by businesses. The approach to industry-education integration revolves around refining the model of collaborative education between universities and enterprises, with a specific focus on refining the talent development process. A case of innovative yarn development design within a spinning study practice teaching base is analyzed in this study to investigate the approach. Within this base, student teams have developed ultra-comfortable yarn, stainless steel fiber/lyocell flame-retardant blended yarn, and stainless steel filament/cotton ply-twisted composite yarn. The case study exemplifies the potential for effective cooperation between universities and enterprises in nurturing talent, leveraging dual-teacher training, providing societal contributions, facilitating employment opportunities, and fostering entrepreneurial initiatives. This collaborative model shows significant potential for comprehensively enhancing the quality of talent cultivation, thereby propelling regional economic and social development.
不锈钢金属纤维是一种功能性纤维,具有特殊的性能,市场潜力巨大.文章从不锈钢金属纤维的制备方法、产品类型等方面进行了论述,介绍了其在防护服领域的巨大应用价值,并从改善不锈钢金属纤维的抱合性和与基体界面结合力的表面处理方面做了实验研究,发现强酸表面处理不锈钢金属纤维后,纤维直径变细,表面出现凹凸不平的空穴.研究结论对于更好地应用不锈钢金属纤维具有参考意义.
The Weaving Technology course is a first-class course at Minjiang University. After a three-year construction period, a series of teaching reform experiences have been formed. This article primarily summarizes the innovations in the practical aspects. The course includes eight experimental practice hours. In the experimental practice session, students are required to design and develop multiple series of woven fabrics with visual errors. Each design group must fully understand and appropriately apply various elements of visual illusions, combining visual illusion images to make the designed works more dynamic, novel, and artistic. This innovative practice is a comprehensive test of students’ imagination and the mechanical weaving process operation, providing an interesting exploration experience for course design.
芳纶面料难以染色,影响了其个性化应用.文章通过控制磁控溅射工艺参数对蓝色芳纶面料进行结构着色,利用镀层后金属膜光发生反射、衍射、干涉等物理作用产生不一样的颜色.经实践,成功对蓝色底色的芳纶面料附加了灰色、银色以及不同程度的金色.研究成果对于难染面料的着色具有一定的参考价值.
This study focuses on the fabrication of fiber membranes containing different concentrations of AgNO3 via the electrospinning technique. The AgNO3 present in the fibers is subsequently reduced to silver nanoparticles (Ag NPs) through UV irradiation. The resulting nanofiber film is characterized using scanning electron microscopy, X-ray diffraction, and evaluations of its anti-UV and anti-electromagnetic radiation properties. Experimental results demonstrate that increasing the AgNO3 content initially decreases and then increases the fiber diameter and fiber diameter deviation. Under UV light, the nanofibers fuse and bond, leading to an increase in the fiber diameter. AgNO3 is effectively reduced to Ag NPs after UV irradiation for more than 60 min, as confirmed by the characteristic diffraction peaks of Ag NPs in the XRD spectrum of the irradiated AgNO3/PVB fibers. The nanofiber film containing AgNO3 exhibits superior anti-UV performance compared to the film containing AgNO3-derived Ag NPs. The anti-electromagnetic radiation performances of the nanofiber films containing AgNO3 and AgNO3-derived Ag NPs are similar, but the nanofiber film containing AgNO3-derived Ag NPs exhibits higher performance at approximately 2.5 GHZ frequency. Additionally, at an AgNO3 concentration of less than 0.5 wt%, the anti-electromagnetic radiation performance is poor, and the shielding effect of the nanofiber film on medium- and low-frequency electromagnetic waves surpasses that on high-frequency waves. This study provides guidance for the preparation of polyvinyl butyral nanofibers, Ag NPs, and functional materials with anti-ultraviolet and anti-electromagnetic radiation properties.
本文尝试设计开发一款既能满足高温特殊工作者的工作需求又具有多功能作用的袖子,即"阻燃防护服形状记忆袖子",通过面料的选用、结构层次的设计开发、配合合理的工艺和美观的设计等进行项目研究与成品制作.本设计是对目前功能性服装、功能性服装部件、功能性面料的探索,致力于让技术更好地服务于人们的日常生活.