Investigating the effect of material and weave design on comfort properties of bilayer-woven fabrics

The paper focuses on the development of a bilayer-woven fabric and investigating the effect of weave design and material type on its comfort properties. Face layer was plain woven with cotton yarn, while two different weave designs (2/2 and 3/1 twill) and four different materials (cotton, polyester, micropolyester and nylon) were used for the back layer. The comfort properties of fabric, including air permeability (AP), thermal resistance, water vapour resistance and overall moisture management capacity, were determined. It was found that both the layers of fabric as a whole contribute to the comfort properties of bilayer fabric. The highest AP was exhibited by fabrics having both layers of cotton, while 3/1 twill samples have a lower value of thermal resistance as compared to the 2/2 twill samples. The results further showed that micro polyester woven in 3/1 twill weave exhibits better comfort properties.     

织物组织结构对衬衫面料撕破强力的影响

探讨织物组织结构对衬衫面料撕破强力的影响.以纯棉、棉涤混纺、棉涤混纺加少量天丝为原料,织造不同组织结构的织物：平纹、斜纹及纵条纹组织,所有试样均采用同样的液氨免烫后整理工艺.采用冲击摆锤法测定织物的撕破强力,并且从紧度比对撕破强力、织物组织对纯棉试样撕破强力,以及原料对撕破强力的影响三个方面进行分析.结果表明,随着织物的经纬向紧度比增大,织物的纬向撕破强力呈递增趋势;对于常见规格的纯棉织物,平纹组织的经、纬向撕破强力均小于其他组织,尤其是纬向撕破强力较容易出现不合格情况,斜纹组织织物的撕破强力较高,纵条组织织物的撕破强力因组成条纹的各基本组织的配置不同而不同,其撕破强力一般介于平纹和斜纹组织织物之间;在棉涤混纺加入少量天丝时,平纹组织织物的撕破强力会明显提高.产品设计中合理设计织物结构,使经纬向紧度比增大,可以提高纬向的撕破强力.     

纯棉纱线合股数对织物性能的影响

为研究纯棉纱线合股数对织物力学性能和保形性的影响,采用线密度相同的单纱、双股线、3股线、4股线4种股线类型,以适当的经、纬密分别织制成平纹、斜纹、缎纹组织的织物.对织物的拉伸性能、撕裂强力、拉伸弹性、折皱回复性、悬垂性、弯曲性进行测试与分析.结果表明:3股线织物的断裂强力和撕裂强力较大,4股线织物的断裂伸长率较大,双股...     

间隔织物面层组织对其增强板材性能的影响

设计织造平纹、方平、2/2斜纹和1/3斜纹4种不同面层组织的间隔织物,并在间隔织物的空间结构中填充聚氨酯泡沫,再用环氧树脂对其表面进行复合,加工制成机织间隔织物复合材料板材.对加工出来的4种间隔织物的复合板材进行压缩和弯曲试验,探讨4种不同的面层组织对间隔织物复合材料板材性能的影响.     

色织衬衫面料的设计与开发

结合流行趋势,采用涤纶纱为原料,利用平纹、斜纹、小提花等组织与色纱排列的搭配,设计了4种女士色织衬衣面料,并上机织造了4块面料;对设计的系列织物的透气性、耐磨性、抗皱性和起毛起球性进行了测试分析,对色织衬衣面料的开发具有一定的参考.     

不同类型防水透湿织物的液态水分管理能力

用液态水分管理测试仪MMT测试CoolMax织物及经TPU涂层处理、层压TPU透湿薄膜处理织物的内外表层的浸湿时间、吸收速度、最大浸湿半径、水分传递速度、单向传递能力和整体液态水分管理能力等指标,以研究它们的防水透湿行为.结果表明:经过透湿和TPU涂层处理的锦纶机织物的透湿性能和水分扩散性能较差,但其内表面均具有较强的...     

几种不同组织结构的衬衫面料保形性研究

根据常见的衬衫面料组织结构,使用JC9.7 tex纱线设计了6种不同组织结构的面料,研究不同组织结构对织物保形性的影响。对面料的保形性(尺寸稳定性、抗折皱性、外观平整度、抗起毛起球性、顶破性、悬垂性)及舒适性(透气、透湿性)进行了测试。结果表明:组织结构对织物的折皱回复角、外观平整度等级、顶破强力、透湿量与透气率有直接影响;织物紧度太大、太小都不利于织物的折皱回复,相同紧度下斜纹组织的抗皱性比平纹好;6种组织结构中2/2斜纹组织抗折皱性最好,2/2方平组织的顶破强力、抗起毛起球等级最高,2/2破斜纹透气、透湿性最好,2/2斜纹组织具有良好的保形性。     

十字形涤纶机织物的吸湿排汗性能

为了解十字形涤纶机织物吸湿排汗性能,利用不同结构的十字形涤纶混纺纱线,设计开发了平纹和斜纹组织的交织物,并对其吸湿排汗性能如吸湿性、透气性、透湿性、吸水性及干燥性等进行测试,分析了纤维含量及织物结构对吸湿排汗性能的影响。测试结果表明,纤维含量及织物结构对十字形涤纶机织物的吸湿排汗性能都有一定的影响。     

An investigation into the effect of fabric structure on the compressional properties of woven fabrics

Lateral compression is one of the most important mechanical aspects of fabrics, which reflects their handle. Fabric compressional features depend on the compressional characteristics of constituent yarns and the fabric structure. In order to consider the effect of fabric structural parameters on its compressional properties, woven fabrics with five different weave patterns (plain, hopsack 2/2, twill 2/2, twill 3/1, warp rib 2/2) were produced with three different nominal weft densities (12, 15, 18 cm^?1). The compressional properties of produced fabrics were evaluated at different pressure values using a conventional fabric thickness tester. It was observed that increasing the weft density leads to decrease in the dissipated compression energy as well as the compressibility of the fabric, while the thickness recovery of the fabric increases. Moreover, the plain woven fabric exhibited the lowest dissipated compression energy and compressibility, while the highest thickness recovery. Besides, at the low pressure level, the fabrics with the lower weft densities demonstrate the higher thickness. By increase in the pressure level, the fabric thickness decreases by decreasing the weft density.     

Effect of structural parameters on thermal protective performance and comfort characteristic of fabrics

In an attempt to understand the influence of basic structural parameters of fabrics on thermal protection and comfort, present study mainly focuses on analyzing effect of fabric weaving pattern and fabric weight. Fabric samples of three basic weaving patterns (plain, twill, and satin) and three different weights were prepared. Air permeability of the developed fabric samples was measured. Thermal protective performance of fabrics against radiant heat and flame exposures of two different intensities were measured. Spectral transmission behavior of fabrics was also studied. It was observed that for same fabric weight, protective performance and air permeability of satin woven fabrics were better as compared to the fabrics of other patterns. Protective performance increased and air permeability decreased as fabric weight increased for each type of woven structure included in this study. A new structural parameter is proposed which primarily influences the protective performance of fabrics exposed to either radiant heat, flame, or combined convective/radiant heat exposure.     

Theoretical and experimental analysis of bending rigidity of plain and twill woven fabrics

The study of bending behavior of woven fabrics is an important issue in textile scientific researches and its industrial applications. Different behavior of fabrics such as drape, comfort, and handling can be understood by this study. Bending rigidity of fabric depends on several factors such as weave geometry, bending rigidity of yarn, and yarn density. In this study, estimation of bending rigidity of woven fabric with different twill and plain structures, have been carried out using energy method. Generally, the woven fabric structure is divided into three different section lengths i.e. rigid, semi-rigid, and flexible sections. Thereafter, bi-component and tri-component models for predicting bending behavior of plain and twill woven fabric have been presented. Then, bending properties of fabric based on Shirley apparatus as well as weight per area as a physical property were measured. Good agreement between measured and predicted values, validated our theoretical models for obtaining bending rigidity, except considerable differences observed between experimental and predicted values using bi-component model of plain fabric. Therefore, using assumptions in calculation of the ratio of rigid section length to flexible section length (R₁), the modified model of plain fabric has been proposed.     

芳纶/不锈钢纤维混纺机织物电磁屏蔽性能研究

为制备综合性能优异的电磁屏蔽织物,采用芳纶/不锈钢纤维混纺纱,通过改变组织结构、厚度、叠合角度的方法来织造电磁屏蔽织物,并分析其电磁屏蔽性能。结果表明:三原组织中,平纹织物的电磁屏蔽效能最佳,缎纹织物的电磁屏蔽效能最差;织物厚度增加,电磁屏蔽效能随之增强;织物叠合角度为45°时明显优于叠合角度0°和90°时的电磁屏蔽效能;芳纶/不锈钢纤维混纺机织物还具有优异的阻燃性能、机械性能和耐水洗性能。     

Prediction of fabric drape using the FAST system

In this study, we investigated the relationship between the fabric drape coefficient from the drape meter and mechanical properties tested on the fabric assurance by simple testing system (FAST). Different kinds of woven fabrics with two kinds of weave (plain and twill) were tested. Three regression models are proposed for each type of weave and for all fabrics using the multiple linear regressions. The regression results were analyzed in terms of correlation coefficients, T and p-values. A neural model is proposed using the neural networks and it is compared to the regression one.     

Acoustic performance of woven fabrics in relation to structural parameters and air permeability

This work deals with the study of the acoustic characteristics of woven fabrics in relation to fabric structural parameters and air permeability. In order to achieve the objectives of the research, sound absorption coefficient of woven fabric samples was determined via impedance tube method. Samples with various pick densities and yarn twist were used. The effect of fabric thickness was analyzed using three and six layered test samples. Results showed that, while for all samples the minimum values of sound absorption were observed at frequency bands of 250 and 2000?Hz, the maximum sound absorption occurred at the frequency of 1000?Hz. Results also indicated that fabrics woven at pick density of 30?thread/cm exhibited higher sound absorption than fabrics woven at other pick densities. It was found that, noise reduction coefficient of three and six layered samples, woven at low pick densities showed significant increases in comparison to those woven at high pick densities. It was also established that samples woven with lower weft yarn twist absorb sound wave more efficiently. It was concluded that fabric air permeability can be used as a criterion of sound absorption behavior of woven fabrics.     

利用模糊C-均值聚类分析法实现织物组织结构自动识别

文章提出了一种新的有效的织物组织结构识别算法.用彩色扫描仪输入紧密织物组织的灰度图像并将其转换为数字文件,然后通过灰度图像形态学处理获得增强图像.基于纱线间隙和经纬纱交叉区的存在,通过一阶和二阶的统计量可获取4种区域结构特征.利用模糊C-均值聚类分析法得出识别经纬浮点的非监督的判别准则.实验材料包括平纹、斜纹和缎纹织物,实验结果表明这3种基础组织结构模式可以得到有效识别.     

棉/不锈钢长丝机织物的电磁屏蔽及折皱回复性能

为研究组织结构与磨损对织物屏蔽性能的影响,以及不锈钢长丝对织物折皱回复性的影响,使用自制的棉/不锈钢长丝包芯纱织制了3种不同组织的机织物,测试了织物在0.3~1 500 MHz频段上的电磁屏蔽性能,并使用平磨仪对各织物分别摩擦60、120、180、240 及300次后,测试了织物磨损后的电磁屏蔽性能;同时,采用视频序列法测试了织物的动态折皱回复角。结果表明：织物组织结构对电磁屏蔽性能有一定影响,平纹组织结构紧密,屏蔽效果好;经过若干次磨损后,织物的电磁屏蔽性能先小幅升高后逐渐降低;相同磨损条件下,试样耐磨性越好,屏蔽效能的降低幅度越小;由于不锈钢长丝的加入使织物的折皱回复性降低,可以采用浮长更长的组织改善织物起皱现象。     

Y形涤纶纤维机织物的开发与性能分析

为了研究Y形涤纶纤维机织物的性能,利用Y形涤纶纤维的纯纺纱以及与棉纤维的混纺纱线,设计开发了16种平纹和斜纹组织织物,对其吸湿排汗性能如吸湿性、透湿性、 吸水性及快干性进行了测试与分析。结果表明：较稀疏、轻薄的混纺织物比纯纺织物透湿性好;而较紧密、厚实的纯纺织物比混纺织物透湿性好；随着织物组织结构紧密度和厚度的增加,Y形涤纶纤维织物的干燥速度下降。     

基于组织和纬纱变化的面料性能配对分析

为更好地掌握竹炭面料中竹炭含量与织物组织对织物性能的影响,探讨了平纹和斜纹2种组织下竹炭纬纱种类和纬密的变化对其性能的影响规律,并进行了配对分析。研究发现,在0.05概率水平下,竹炭面料试样与涤纶面料试样在保暖率、传热系数、透气性、负离子发生数、苯吸附率的均值变化方面无显著性差异,斜纹面料试样与平纹面料试样在上述指标的均值变化方面亦无显著性差异。在竹炭面料试样中,所有织物结构参数与保健功能指标的相关系数均值均呈显著性差异。     

影响网格状稀疏织物结构稳定性的因素分析

探讨影响网格状稀疏织物结构稳定性的因素。通过测试不同组织、不同纱线号数和不同经纬密的多种机织网格状稀疏织物的滑移阻力,并反复对比分析了组织、纱线号数、摩擦因数和经纬密对网格状稀疏织物滑移阻力的影响。结果表明:平纹组织织物的滑移阻力明显大于方平组织织物;在一定范围内,织物的滑移阻力随纱线号数和摩擦因数的增大而增大,随经纬密度的增大而增大。认为网格状稀疏织物的滑移阻力测试分析结果为建立织物滑移阻力预测模型提供了依据。