羊毛与37.5涤纶混纺针织物的热湿舒适性研究

选择8种不同的羊毛与普通涤纶、37.5涤纶混纺针织物试样,测试试样的密度、面密度、未充满系数和厚度等基本参数,以及回潮率、透气率、芯吸高度、瞬间接触凉感(Q-max)及恒定加热条件下的干、湿态升温性能等织物的热湿舒适性能,分析和评价了针织物的基本参数对其热湿舒适性能的影响。试验结果显示,与普通涤纶相比,采用37.5涤纶有助于提高织物的回潮率、芯吸高度和Q-max;透气率随针织物未充满系数的增大而增大;当织物的纤维组成成分基本一致,组织结构相同时,针织物的面密度越大,透气性越差;含37.5涤纶的纬平针织物的瞬间接触凉感性能较好。     

凉感尼龙长丝针织物热湿舒适性能测试与分析

选用凉感尼龙长丝与同规格常规尼龙长丝,用圆纬机编织成纬平针和罗纹型复合组织针织物,经染色后整理成光坯织物,测试分析其热湿传导性能、透湿性能、芯吸性能和透气性能。试验结果显示,与常规尼龙长丝针织物相比,凉感尼龙长丝针织物的热阻、克罗值、湿阻小,导热系数大,具有较好的热传递性能和湿传递性能,且热湿传递性能与织物组织结构有关。     

大豆蛋白纤维双层结构功能性针织物的开发

介绍大豆蛋白纤维与防紫外线涤纶、远红外丙纶、中空涤纶短纤纱和异型截面涤纶交织生产双层结构功能性针织物的开发过程。并对4种织物的导湿性、透气性和保暖性进行测试,分别以导湿综合指标、当量透气量和单位厚度保暖率来评价各种织物的性能。结果表明:该类大豆蛋白纤维双层功能性针织物性能优良,集舒适性、功能性于一体,发展前景广阔。     

Coolpass纤维导湿性能研究及其针织物开发

介绍了导湿的基本理论,并通过对分别用Coolpass、Coolbst、中空涤纶、Coolmax、负氧离子涤纶纱线编织的织物进行导湿性能测试,得出由Coolpass长丝纱线编织的织物导湿性能明显优于其他同类纤维纱线编织的织物.在此基础上,使用竹纤维和Coolpass纤维纱线开发导湿面料,经过测试比较得出,用竹纤维纱线为地纱,Coolpass长丝纱线为面纱编织的织物导湿性能不如纯Coolpass长丝纱线编织的面料.但要好于其他几种纱线搭配组合的面料,由于竹纤维属天然纤维,因此该面料的舒适性更好,适合制作舒适性功能服装.     

导湿凉感织物结构设计与性能测试

为解决常规凉感纤维不吸水,难以导出汗液,进而造成织物表面不干爽、不能持久凉爽的问题,利用润湿梯度及异型纤维的差动毛细效应,通过调整纬编间隔织物表层、中间层、里层的纱线配置,赋予织物接触凉感和导湿性能。并测试纤维的微观形貌以及织物的接触瞬间凉感、透湿性能、导湿性能、透气性能等。结果表明,织物表层采用超高分子量聚乙烯纤维,里层采用竹纤维,中间连接层采用十字形截面的涤纶纤维,所制备织物的导湿及凉感性能更优异。     

凉感锦纶长丝针织产品生产实践

对比分析十字形截面凉感锦纶长丝与同规格锦纶长丝的表观形态和性能,包括摩擦性能、拉伸性能、吸湿性能、沸水收缩率、耐酸碱性能。选择十字形截面凉感锦纶长丝,设计开发纬平针和罗纹型复合组织等4种纬编织物,介绍织物的编织工艺及后整理工艺,并测试分析织物的热湿舒适性能、透湿性能、芯吸性能和透气性能等。结果表明,采用异截面凉感锦纶长丝的针织物具有较好的热湿传递和舒适性能,适于夏季针织服装的开发。     

纬编起绒面料性能研究

分别选用细旦腈纶、德绒、木代尔、细旦涤纶以及氨纶为原料,通过拉绒、刷绒的起绒方式制备3种双罗纹起绒面料以及1种单面集圈起绒面料。测试分析面料基本参数及硬挺性能、顶破性能、悬垂性能、热湿性能、透气性能、抗起毛起球性能、水洗后尺寸稳定性、落毛率、蓬松性能等。结果表明：细旦腈纶、黏胶、涤纶（20∶20∶60）紧密赛络纺色纱与细旦涤纶长丝+氨纶交织编织制备的双罗纹起绒面料的柔软性能、热湿舒适性能较优,精梳长绒棉纱与氨纶交织的双罗纹起绒面料的抗起毛起球性能较好,单面起绒面料的落毛率较少,为起绒面料的开发提供参考。     

咖啡炭针织面料服用性能测试与分析

对咖啡炭涤纶长丝交织、咖啡炭腈纶混纺针织面料进行顶破、耐磨、起毛起球、保暖、透气、透湿、导湿等性能测试,得出结论:咖啡炭长丝织物的顶破和耐磨性好,咖啡炭混纺针织物比棉针织物耐磨性好;咖啡炭长丝织物抗起毛起球性能优于咖啡炭混纺织物;咖啡炭长丝与棉纱、天竹纱、棉氨包芯纱交织后,织物的透气、透湿、导湿性增强;咖啡炭混纺针织物比棉针织物保暖性、透湿性和导湿性好;咖啡炭长丝和短纤织物穿着舒适,适宜直接接触皮肤穿着。     

大豆蛋白复合纤维/涤纶针织物混纺比与舒适性的关系

为了研究大豆蛋白复合纤维/涤纶针织物的热湿舒适性能与混纺比之间的关系,对7种不同混纺比例的大豆蛋白复合纤维/涤纶针织物的保暖性能、透湿性能、导热性能、冷暖感、透气性能、浸润性能等进行测试分析。结果表明:随着大豆蛋白复合纤维含量的增加,大豆蛋白复合纤维/涤纶针织物的保暖性逐渐提高,导热系数基本呈现逐渐减小的趋势,接触凉爽感越来越好;大豆蛋白复合纤维/涤纶针织物的透气性也逐渐提高,其芯吸效应越显著。     

涡流纺纱线及其针织物湿传递性能研究

选择黏胶、涤纶(65∶35),黏胶、腈纶(65∶35)涡流纺混纺纱线,全黏胶涡流纺纱线,编织3种典型针织物:单面集圈、双罗纹、涤盖棉,通过测定织物回潮率、透湿量、透气率,以及芯吸爬高等性能,对织物的湿传递性能进行研究,并选择棉涤混纺(65∶35)环锭纺双罗纹织物进行对比分析。结果表明:纱线和织物吸湿性能主要由纱线中纤维成分决定;透气率关系为单面集圈﹥涤盖棉﹥双罗纹;透湿性关系为单面集圈﹥双罗纹﹥涤盖棉,表明织物厚度是重要的影响因素;液态水传递方面双罗纹织物芯吸效应显著,3种组织结构中,各纤维芯吸高度关系为黏腈混纺纱黏涤混纺纱全黏胶纱。该研究为选用涡流纺纱线开发新型导湿快干针织面料提供一定参考。     

含湿状态下组织结构对织物热舒适性的影响

为比较不同组织结构的织物在含湿状态下的热舒适性能,用KES织物风格仪测试了在一定含湿状态下涤纶针织物、机织物的热舒适性能。结果表明:织物含水率越高,瞬间冷感越强,热传导性能提高,保暖性能下降;在含湿率相同的状态下,涤纶机织物比针织物瞬间冷感更强;编织方法对导热系数随含湿率变化的规律没影响;涤纶机织物、针织物在纯干燥状态下的保暖性相差无几,但加湿后2种织物保暖性能差别显著。通过综合分析比较,认为涤纶针织物保暖性好于涤纶机织物。     

基于灰色关联模型的针织物热湿舒适性分析与预测

为了实现对针织物热湿舒适性能的预测,对7种针织物进行物理性能测试,对影响针织物热湿舒适性的因素进行了灰色关联度分析,得出对热湿舒适性影响显著的针织物性能指标主要为瞬间冷暖感、导热系数、透湿量、厚度;在此基础上,运用灰色预测方法建立了针织物热湿舒适性与针织物测试性能指标之间的灰色关联模型,从而在得知针织物的瞬间冷暖感、导热系数、透湿量、厚度的情况下实现对针织物热湿舒适性的预测分析。     

Thermophysiological comfort properties of selected knitted fabrics and design of T-shirts

Thermal comfort is one of the most important components of comfort which shows physiological, psychological, and physical harmony between human body and environment. The heat and moisture transfer capacity of fabric from skin to environment affects the thermal comfort of garments. The transfer capacity depends on the characteristic features of raw materials and fabric structural properties. In this study, it is aimed to determine the advantages of knitted fabric types, taking into account the environmental condition and activity level by measuring the thermal comfort properties such as air permeability, wicking, moisture management, thermal and water vapor resistances. Two knitted structures composed of tuck and float combinations and six raw materials were chosen for the fabrics produced. According to the measurement results, the polyester and cotton/Coolmax fabrics with float stitches have had good liquid moisture transport properties. Besides, high air permeability and low water vapor resistance have been obtained in viscose and Tencel LF fabrics with tuck stitches. On the basis of the results obtained in this investigation, and taking into consideration thermal behavior of human body, four women’s and five men’s T-shirts are designed. These T-shirt designs may be helpful for further approaches on the optimization of thermal comfort for sports activities in hot environment.     

凉感面料开发及其吸湿凉感机制研究

为提高面料的凉感效果以及解决现有面料凉感测试仪器无法检测水对面料凉感性能影响的问题,利用高密度聚乙烯纤维为圈组织、纯棉靛蓝纱为地组织开发了2款针织牛仔凉感面料,并对面料的凉感性能、吸湿快干性能、抗紫外线性能等进行了检测;搭建织物凉感性能可视化检测平台,用带有一定温度的水滴代替汗液,对面料吸湿后凉感性能的变化规律进行了探究。结果显示:面料吸湿以后导热能力显著提升,降温效果明显,面料的稳态凉感性能得到提升;水分对面料稳态凉感的影响大于纤维的导热性能,面料的吸湿性能越好,其稳态凉感效果就越好;水滴被样品面料吸收以后,会在面料的表面扩散成有规律的温度分布区域。     

凉感面料开发及其吸湿凉感机制研究

为提高面料的凉感效果以及解决现有面料凉感测试仪器无法检测水对面料凉感性能影响的问题,利用高密度聚乙烯纤维为圈组织、纯棉靛蓝纱为地组织开发了2款针织牛仔凉感面料,并对面料的凉感性能、吸湿快干性能、抗紫外线性能等进行了检测;搭建织物凉感性能可视化检测平台,用带有一定温度的水滴代替汗液,对面料吸湿后凉感性能的变化规律进行了探究。结果显示:面料吸湿以后导热能力显著提升,降温效果明显,面料的稳态凉感性能得到提升;水分对面料稳态凉感的影响大于纤维的导热性能,面料的吸湿性能越好,其稳态凉感效果就越好;水滴被样品面料吸收以后,会在面料的表面扩散成有规律的温度分布区域。     

Thermo-physiological comfort properties of double-face knitted fabrics made from different types of polyester yarns and cotton yarn

Double-face knitted fabrics with hydrophobic inner and hydrophilic outer layers are characterised by their advantageous thermo-physiological comfort property that facilitates the transport of sweat from skin to outer fabric layer where it can be evaporated easily. In this study, for the production of double-face knitted fabrics, cotton yarn as hydrophilic yarn type and five different polyester filament yarns consisting of standard polyester, hollow polyester, micro polyester, textured polyester and textured micro polyester as hydrophobic yarn type were used. In order to determine the thermo-physiological comfort properties of the fabrics, air permeability, water vapour permeability, thermal conductivity, thermal resistance and overall moisture management capacity were measured. The results were comparatively analysed using statistical methods. The experimental results demonstrated that the polyester-type yarns and the combinations of them with the cotton yarn in fabric layers affected the thermo-physiological comfort properties significantly. The fabrics with polyester-type inner face and cotton outer face showed the best moisture transmission properties.     

Investigation on thermo-physiological and compression characteristics of weft-knitted 3D spacer fabrics

The thermo-physiological comfort and compression properties of knitted spacer fabrics have been evaluated by varying the different spacer fabric parameters. Air permeability and water vapor transmission of the fabrics were measured using the Textest FX-3300 air permeability tester and PERMETEST. Thermal behavior of fabrics was evaluated by (TCi) thermal conductivity analyzer and overall moisture management capacity was evaluated by moisture management tester. Spacer fabrics compression properties were also tested using KES-FB3. In the KES testing, the compression resilience, work of compression, linearity of compression, and other parameters were calculated from the pressure–thickness curves. Analysis of variance was performed using new statistical software named QC expert trylobite and Darwin in order to compare the influence of different fabric parameters on thermo-physiological and compression behavior of samples. This study established that the raw materials, type of spacer yarn, density, thickness, and tightness of surface layer have significant influence on both thermal conductivity and work of compression in spacer fabrics. The parameter which mainly influences the water vapor permeability of these fabrics is the property of raw material i.e. the wetting and wicking properties of fibers. The Pearson correlation between moisture capacity of the fabrics and water vapor permeability was found.     

Investigation on permeability and moisture management properties of different denim fabrics after repeated laundering

The physiological comfort determined by air permeability and moisture management properties of fabrics is influenced by various constructional parameters of the fabric which give woven fabric a porous structure. Evaporation of sweat during wear has the potential to cool the body besides restricting the additional weight of sweat being absorbed by the fabric. In this study, comfort characteristics of denim fabrics with different weft yarn of cotton, polyester and core spun Lycra have been discussed. Effect of enzyme washing and repeated laundering on air permeability, moisture management and drying rate has also been discussed. It was observed that air permeability and water vapour permeability of unwashed denim fabrics with cotton weft yarn are significantly higher than the fabric with polyester and Lycra cotton weft yarns. The wetting time is higher for cotton and Lycra cotton yarn fabrics. One-way transport index is highest for Lycra cotton weft fabrics and lowest for fabrics with polyester weft. Fabrics with polyester weft yarns show highest spreading rate, spreading radius and drying rate due to better wicking and hydrophobic nature of polyester fibres.