弹力竹节牛仔布织造工艺优化

介绍了弹力竹节牛仔布的生产工艺 ,同时对KT36 8剑杆织机织造该织物的工艺进行了优化研究     

注塑件熔接缝结构,性能评价及影响因素

文章介绍了熔接缝形成的原因，接缝类型，接缝外观和断口形态特征以及接缝性能评价方法。分析了接缝类型，塑料材料性质，工艺参数和其它因素对接缝性能的影响。     

基于编织算法的复线高速磁浮列车运行图铺画方法

根据高速磁浮线路结构和运行控制系统的特点,建立了复线高速磁浮列车运行图编制模型,设计了编织算法对模型进行求解。该算法严格按照列车在各车站的发车时间顺序,对上、下行列车运行线如同“织毛衣”般交叉铺画,在遇到列车冲突时通过更改列车路由和增加发车间隔等方法予以及时化解,逐步得到整体优化的列车运行图。算例分析表明,该方法优化速度快,能够有效地进行高速磁浮列车运行图的铺画。     

Mechanical properties of textile-inserted PP/PP knitted composites using injection–compression molding

This paper concentrates on the experimental investigation of the self-reinforced all-polypropylene composites. There exists an optimum processing condition to produce high quality specimens by injection–compression molding. Tensile and 3-point bending properties of the virgin PP materials were nearly unaffected by the introduction of reinforcing knit layer(s) due to very low fibre content of the knitted fabrics used. 3-point bending properties were also unaffected by the surface of indentation-flexure. The applied impact energy was maintained at 5 J for the homo-PP and 27 J for the block-PP materials, respectively, to cause penetration during drop-weight impact tests. It is interestingly noteworthy that the self-reinforced homo-PP composites exhibited superior energy absorption capability when compared with the virgin matrix materials. The corresponding plate bending performances of the self-reinforced homo-PP composites also revealed consistent improvement as compared to their virgin counterparts. On the other hand, although virgin block-PP material exhibited better impact performances than its composite reinforced by the homo-PP knitted fabric, a notably small increase in the reinforcement fibre content revealed considerable improvement in the impact properties comparable to those of the virgin block-PP matrix materials. These self-reinforced homo-PP/block-PP materials have clearly indicated that they have the potential to out-perform the block-PP materials via modification and/or manipulation of the reinforcement knit structural/geometrical parameters and the content of reinforcement fibres. Both static and dynamic impact properties are likely to be affected by the local area properties of the tested face under indentation, and thereby contributing to the improved performances of the composite specimens with the knit face under the impact.     

牛仔洗水处理对PTT纤维结构和力学性能的影响

对聚对苯二甲酸丙二醇酯(PTT)短纤维进行4种洗水工艺处理,并对处理前后的纤维通过电子单纤维强力仪、红外光谱仪、扫描电子显微镜进行力学性能和结构的表征。结果显示:PTT纤维经过4种洗水处理后,纤维的断裂强度和断裂伸长率分别下降,弹性回复率微微下降,纤维的表面均有不同大小的坑穴;红外分析表明经洗水处理后,纤维的结晶度下降,尤其是高锰酸钾处理和双氧水漂洗对纤维力学性能的下降和纤维表面形态的破坏的作用更明显。     

降低牛仔布粗经粗纬的纺纱设备改造实践

对牛仔布粗经粗纬的形成原因及成纱质量做了分析,确定了RU04转杯纺纱机的改造方法,通过优化纺杯支撑轮、纺杯传动皮带的更换方法、改造主风机轴等,稳定纺杯动平衡及纺杯负压,减少了成纱粗节及牛仔布粗经粗纬.     

经编机电脑提花系统

本系统首次在经编机上实现用电脑技术彻底取代意匠—纹板—龙头体系,使一幅相当复杂的图画,经过扫描,就可在电脑控制下直接织造出来,整个过程需时36min。平均提高花样翻新效率720倍;平均降低花样翻新成本200倍;提高了织物的艺术层次;允许织机转速升高1～2倍;同时增加了提花机构的可靠性。     

针织服装缝制工艺探析

通过针织服装企业调研,以及对针织面料的特性及针织服装缝制工艺设计的分析,总结了目前针织服装企业主要存在的缝制工艺问题,提出了提高针织服装缝制工艺质量的解决方法.以期为针织服装企业进行工艺设计提供参考.     

丝素蛋白腈纶结构性能及其混纺针织纱的开发

通过对丝素蛋白接枝腈 性能及原理的讨论，提出了素蛋白腈纶纤维与天然纤维混纺针织纱及最终产品开发中的技术要点，为丝素蛋白接接腈纶的产品提供了途径。     

牛仔服装市场调查研究

以问卷形式,通过广东四类城市的消费者对牛仔服装市场的调查,分析了目前牛仔服装市场消费者的偏好、对款式需求以及产品定价、品牌建立和产品开发等情况,旨在为广东地区牛仔行业的产业发展提供理论依据。