竹炭涤纶纤维织物的防紫外线性能研究

研究竹炭涤纶纤维交织物中竹炭涤纶纤维的含量与织物防紫外线性能的关系.通过测试不同竹炭涤纶纱与棉纱交织物的防紫外线性能,由计算机曲线模拟出紫外线透过率与竹炭涤纶纤维含量的关系图和回归曲线方程,指出竹炭涤纶纤维具有良好的防紫外线辐射性能,而防紫外线织物要达到国家标准所要求的UVA透过率.织物中竹炭涤纶纤维最低含量应在实际生产中根据产品应用作适当调整.     

针织物汗液浸湿率对其防紫外线性能的影响

研究了吸附汗液对针织物防紫外线性能所产生的影响。采用模拟酸性、碱性汗液对同种类型不同颜色的7块针织物进行了处理,测试了针织物在不同汗液润湿率条件下的防紫外性能,分析了汗液浸湿率对针织物防紫外性能的影响。结果表明:针织物汗液浸湿率从0增加至60%时,针织物的紫外线透过率T(UVA)AV在逐渐升高,紫外线防护系数UPFAV在逐渐变小,针织物的防紫外线性能在逐渐变差;当汗液浸湿率由60%继续增加至100%时,针织物的紫外线透过率T(UVA)AV开始逐渐降低,紫外线防护系数UPFAV在逐渐增大,针织物的防紫外线性能开始逐渐增强。     

纺织品紫外线防护性能分析

比较并分析织物组织、厚度、经纬密和紧度对纺织品的紫外线透过率和紫外线防护系数(UPF值)的影响。结果表明:在其他参数接近的情况下,斜纹织物的抗紫外线性能优于平纹织物,平纹织物又优于平纹地提花组织织物;织物越厚,其紫外线透过率越小,抗紫外线性能越好;随着织物经纬密和紧度增加,其紫外线透过率减小,UPF值增加,抗紫外线性能提高。     

竹/毛混纺织物的开发及其服用性能研究

文章以竹原纤维、羊毛为原料,经过纺纱、织造和后整理等加工工艺,在保证竹原纤维一定回潮率的前提下,织制成不同混纺比例的竹/毛混纺梭织面料,然后利用FAST织物风格仪对其刚柔性、折皱回复性、悬垂性等服用性能进行测试,通过综合研究与分析,得出竹/毛混纺产品的开发具有一定的可行性,当竹原纤维含量在50%左右时,可以控制织物的缩率达到2.5%.混纺织物中随着竹原纤维含量的增加,可改善毛织物的防缩性、尺寸稳定性、湿膨胀性、压烫效果、褶裥保型性和抗菌防臭、防紫外等功能.     

混纺比对竹浆/棉针织物防紫外线性能的影响

依据GB/T6529-2008和GB/T18830-2009,采用HB902型紫外线测试仪,对竹浆/棉针织面料的防紫外线性能进行了测试,研究了混纺比对竹浆/棉针织物防紫外线性能的影响。结果表明,全竹浆针织物在波长280～305nm之间,防紫外线性能优于全棉针织物;波长在330～400nm之间,全竹浆针织物防紫外线性能差于全棉针织物;竹浆/棉混纺针织物防紫外线性能明显优于全棉或全竹针织物的防紫外线性能,并随着竹浆/棉混纺纱线中竹浆纤维含量的增加防紫外线性能越好,在混纺针织物中竹浆纤维含量在3.44%～98.12%之间时,织物符合防紫外线纺织品的要求。     

竹原纤维与苎麻纤维织物吸放湿性能的比较研究

竹原纤维作为一种新型生态纤维用料，正方兴未艾。为了进一步弄清竹原纤维与苎麻纤维的区别．分别对竹原纤维和苎麻纤维织物的吸、放湿率进行了测试。通过对两种织物吸、放湿率的比较研究，认为竹原纤维织物的舒适性能优于苎麻纤维织物。     

珍珠纤维衬衫面料防紫外线性能分析

测试了珍珠纤维衬衫面料与纯棉面料的UPF值,从面料成分、纱线细度、纱线密度等方面分析了对织物防紫外线性能的影响。结果表明珍珠纤维具有良好的紫外线防护效果。     

柔丝织物紫外线透射性能分析

为研究柔丝织物紫外线透射性能,在同一工艺条件下织造不同规格的柔丝织物,通过对织物在280～400 nm波长范围内紫外线透过率测试,分析柔丝纤维比例、纱线纤度、纬纱密度等结构参数对紫外线透射性能的影响。研究发现:柔丝纤维中存在大量对紫外线有吸收作用的物质,使柔丝织物具有较好的防紫外线性能;随着柔丝纤维比例、纱线纤度、纬纱密度的增加,试样紫外线透过率呈下降的趋势;各结构参数对紫外线透过率影响程度大小顺序为:柔丝纤维比例、纱线纤度、纬纱密度。     

防紫外线聚丙烯腈复合纳米纤维的制备及其性能

为制备防紫外线功能的纳米纤维制品,选用聚丙烯腈（PAN）和紫外线吸收剂UV531 作为原料,利用静电纺丝方法制备了纯PAN 和PAN 复合纳米纤维膜,用扫描电子显微镜、紫外线透反射分析仪等分析了纳米纤维的微观形貌、化学性能、紫外线防护性能等。结果表明：紫外线吸收剂的加入有效地减小了复合纳米纤维的直径,纯PAN和PAN 复合纳米纤维膜的红外光谱均表现出ＰＡＮ 的特征峰,说明紫外线吸收剂的加入没有改变PAN的内部结构;紫外线吸收剂的加入提升了复合纳米纤维膜的紫外吸收性能和紫外防护性能,随着紫外线吸收剂含量的增加,紫外吸收值和紫外防护因子越大,而紫外线的透射率越小;因此,PAN复合纳米纤维膜是非常优异的防紫外线制品。     

防紫外线织物的性能评定分析

主要介绍了过量的紫外线对人体的伤害和人们对防紫外线织物的重视、防紫外线织物的防护及作用原理、影响织物防紫外线的因素和防紫外线织物具有的特殊性能,以及对这些性能的评价和测试方法。     

Comparative analysis of in vitro ultraviolet radiation protection of fabrics woven from cotton and bamboo viscose yarns

Ultraviolet protection factor (UPF) of fabrics made of 100% cotton and 100% bamboo viscose yarns were studied and a comparative analysis carried out using curve fitting technique. Bamboo viscose fabrics showed higher shrinkage, cover percentage, areal density and UPF compared to its cotton counterpart woven with identical yarn counts and fabric sett. However, the predictive model of cotton fabric UPF using fabric areal density as the input was able to estimate the UPF of bamboo viscose fabrics with very good accuracy. Furthermore, the 100% cotton and 100% bamboo viscose fabrics showed the same UPF if their cover percentage and areal density is similar. It is inferred from the analysis that the apparently higher UPF of bamboo viscose fabrics can be attributed to their higher cover percentage and areal density instead of bamboo’s inherent UV protective property which has been claimed in various literatures.     

Novelty of bamboo fabric

Fabric samples using 100% cotton, 100% viscose rayon, 100% regenerated bamboo viscose fibre and cotton/bamboo viscose blend (60/40) were produced and characterised for hand value and health care applications. The present study shows the results of these woven fabrics in terms of antibacterial, absorbency, ultraviolet protection factor (UPF), static characteristics, moisture vapour permeability (MVTR) and handle and dust catchability. Bamboo fabrics (100%) give better results compared to 100% cotton and 100% viscose fabric in terms of antibacterial property and absorbency i.e. wettability. Bamboo fabric (100%) also shows slightly higher moisture vapour transmission rate than cotton fabric. In the case of UPF, 100% cotton and 100% bamboo give excellent-rated UPF. There is no significant difference between these fabric samples in terms of time to lapse half saturated voltage. Total hand value is higher in the case of viscose and bamboo fabric than cotton fabric. The studies also show that breaking load and extension of bamboo gauze bandages are higher than cotton bandages. Sinking time is faster but absorptive capacity is lower in the case of bamboo gauze bandage than cotton gauze bandage.     

银纳米线改性棉织物的制备及其性能

为提高棉织物附加值并改善其对改性成分的吸附性,首先利用高碘酸钠氧化处理以增加棉纤维的粘结性,然后采用一步多元醇还原法,在160℃条件下制备银纳米线(AgNWs)并分散到无水乙醇中,以棉织物为基底,采用浸渍—烘干法将AgNWs整理到棉织物表面.对AgNWs的形貌、长度、直径及结晶结构进行了测试与表征,并分析了整理后棉织物...     

竹原纤维织物吸湿透湿性能的测试分析

对纯竹原纤维、纯苎麻、纯棉以及棉竹原交织、竹原棉混纺等织物的吸湿性与透湿性进行了测试分析,结果表明纯棉织物的回潮率和初始阶段吸湿速率明显高于纯竹原织物和纯苎麻织物;竹原织物的透湿性略高于苎麻,明显高于纯棉织物;结构紧密、厚实的织物透湿性明显下降。     

Ultraviolet radiation protection by cotton fabrics: role of porous yarn structure,fabric thickness and pore size

The effect of porous yarn structure on ultraviolet (UV) radiation protection by cotton fabric has been investigated. Fabrics with porous yarn structure showed higher ultraviolet protection factor (UPF) in comparison with that of fabrics woven from equivalent normal yarns. Fabric samples having different thickness and individual pore size, at same cover %, were produced by adjusting yarn count and thread density. UPF of UV absorber treated cotton fabrics increased continuously with decreasing thickness and reducing individual pore size when the fabric cover was kept constant at relatively higher levels (93 and 96%). For UV absorber treated cotton fabrics, individual pore size is the dominating factor for determining the UPF.     

Properties research of doubling and twisting yarn fabric of wool/bamboo charcoal filament北大核心

The experimental material uses doubling and twisting yarn worsted fabric of wool and bamboo charcoal filament attached to new green environmental fiber. It selects tensile property, antiwrinkle performance, moisture permeability and UV protection performance in particular. The result is all new products have better tensile property and moisture permeability compared with wool and bamboo charcoal filament interlacing fabric. Moisture permeability of doubling and twisting yarn fabric increases and UV protection performance falls off gradually when weight and weave is equation of all fabric. It also gets No. 1 sample has optimal performance in four properties when the content of bamboo charcoal filament is 29.5% ,the twist is 58.5 twist/10 cm, the weave is plain, the square meter gram weight is 144 g/m2 by product performance rank method.     

Understanding the influence of fibre,yarn and fabric parameters on UV protection of wool-knitted fabrics

This work investigated the influence of fibre, yarn and fabric parameters on the UV protection of fabrics. It proposed a model for UV interaction based on a theoretical hypothesis, targeted experimentation and statistical analysis. Undyed and untreated wool-knitted fabrics with varying mean fibre diameter, yarn linear density, yarn twist, fabric cover factor and fabric structure were examined. A statistical model was presented to report the relationship between fibre/yarn/fabric parameters and fabric UPF values. An optical model on the interaction between the UV light and a single jersey fabric was constructed to understand the penetration of UV light. The models were verified by the UV transmittance results of knitted wool fabrics. The results obtained from the statistical and optical models were used to propose a set of optimized parameters for lightweight summer/spring UV-protective knitted fabrics. Testing confirmed that these fabric parameters provided both high UV protection and good tactile comfort.     

纳米ZnO整理对蚕丝织物抗紫外线性能的影响

为提高蚕丝织物防紫外线性能,采用钛酸酯偶联剂制备纳米ZnO水溶胶,对织物进行防紫外线整理。使用Lambda900紫外分光光度计,测试波长280～400 nm范围的紫外线透过率,以织物的紫外线透过率和UPF值作为其防紫外线性能的评价指标,采用正交试验设计方法,探讨纳米ZnO整理蚕丝织物的最优整理工艺。试验结果表明：纳米ZnO质量浓度对整理后织物的UPF值影响最大,其次是偶联剂质量浓度、超声振荡时间。优化工艺条件为：纳米ZnO质量浓度18 g／L、偶联剂质量浓度12 g／L、超声分散时间20 min。整理前后织物的平均紫外线透过率由27?09％降低到2?46％,UPF值从2?624增加到35?428;纳米ZnO整理织物具有较优的抗紫外线持久性。     

竹原纤维织物风格测试与分析

利用KES-FB织物风格评价系统对竹原纤维织物的柔软、表面摩擦、拉伸、剪切等指标进行了测试,并与竹浆织物、苎麻织物和棉织物进行了风格对比,结果表明：纯竹原纤维类织物试样滑爽度和平展度最好,硬挺度较大,丰满度较小。较适宜做女式轻薄春秋季外衣服装面料。为竹原纤维面料产品的开发提供了一定的依据。     

纳米二氧化钛多功能织物整理剂的制备与性能

采用溶胶凝胶法研制出纳米二氧化钛整理剂,通过浸轧的方式将其应用于棉织物的功能整理中。结果表明,整理后的棉织物抗紫外线性能优异,UPF值大幅度增加,且皂洗牢度好。同时,织物还具有较好的抗菌性能,细菌减少80%以上。此外,整理后织物的性能受织物结构、整理剂浓度的影响,织物越紧密、整理剂中二氧化钛浓度越高,织物的抗紫外线和抗菌性能越好。