Cut resistance of hybrid para-aramid fabrics for protective gloves

This paper deals with cut resistance of hybrid woven para-aramid fabrics tested according to the appropriate clause of EN 388 – “Protective Gloves against Mechanical Risks”. Abrasion, puncture and tear resistance properties of the fabrics were also measured. The experimental sample set was plain-woven fabrics made of hybrid yarns composed of staple para-aramid fibres with different core/sheath ratios of various filaments in their structure. The effects of core/sheath ratio and core filament type were investigated. The results revealed that decreasing core–sheath ratio of the hybrid yarns led to the increase in weight and thickness, resulting in improved cut, abrasion and puncture resistance properties. It was confirmed that cut resistance increased with the increase in thickness and weight of the fabric. Para-aramid/Dyneema® fabric had higher cut, abrasion and puncture resistance properties.     

Surface roughness properties of wool woven fabrics after abrasion

Effects of abrasion on surface roughness properties together with appearance of woven wool fabrics have been investigated. The effects of weft yarn count, weft yarn density, and weave pattern on fabric surface roughness after abrasion were researched. Surface roughness values of control fabric (not abraded) and abraded fabrics after four different abrasion cycles were discussed according to different fabric constructional parameters. It was observed that the greatest decreases in surface roughness values after abrasion were observed in loose fabric structures which had the highest initial fabric surface roughness values (coarse yarn, low yarn density, and low yarn intersection). The results showed that change of roughness properties of wool fabric surfaces after abrasion depends on the initial surface roughness values and on the amount of contact area of fabrics based on the fabric constructional parameters.     

Surface roughness properties of polyester woven fabrics after abrasion

Effect of abrasion on surface roughness properties of textured polyester woven fabrics has been investigated. The effects of weft density, weft yarn filament number, fiber fineness, and weave pattern on surface roughness after abrasion were studied. Surface roughness values of control fabric (not abraded) and abraded fabrics after four different abrasion cycles were discussed according to different constructional parameters. Surface roughness values of fabrics changed according to abrasion cycles and the changes were related to yarn float lengths, yarn densities, yarn fiber fineness, and initial fabric surface roughness. A general overview of the results showed that abrasion eliminated the effect of texture especially at the fabric samples with initially high surface roughness. The surface roughness of fabrics with initially high surface roughness decreased at a greater extent than the ones with low surface roughness after abrasion. Fabrics with high surface roughness were affected more by abrasion and the effect of abrasion on rough surfaces depended on different manners regarding the compactness of woven structures.     

Characterization of fabric properties knitted from multifilament polyester textured yarns with various number of filaments

The purpose of this study is to investigate the physical and mechanical properties of fabrics knitted from textured polyester multifilament yarns with various numbers of filaments in the yarn cross-section. In this regard, some of the characteristics of yarns and fabrics, knitted from the mentioned yarns, were measured and analysed. Analysis of results showed that increasing the number of filaments in the yarn cross-section leads to a decrease in yarn’s diameter and abrasion resistance. Moreover, examining the properties of the weft-knitted fabrics revealed that increasing the number of filaments causes a rising trend in the compressibility and bursting strength of fabric. On the contrary, the thickness, air permeability and abrasion resistance decreases due to a growth in the number of filaments. A decline in the strength and elongation of yarns and fabrics produced from them is also another result of increasing the number of filaments in the yarn cross section.     

麂皮绒主要物理性能的灰色关联分析

针对7种不同规格的麂皮绒织物,测试其断裂强力和伸长、顶破强力、耐磨性、悬垂性、折皱回复性等性能指标,分析结构参数对其性能的影响;通过灰色关联分析,得出麂皮绒的结构参数与织物拉伸强力、耐磨性、悬垂性、抗折皱回复性的灰色关联序,为新型麂皮绒织物的设计和开发提供参考。     

水洗过程对织物性能和外观的影响

研究了水处理对织物外观和部分织物性能的影响。织物选用由两种不同线密度的纱线(分别为29.5tex和19.7tex)制备的20块平纹棉针织物,水处理(0、5、15和25次水洗)之后,测试对织物舒适度和美学性能有重要影响的一些织物性能(即织物厚度、透气性、抗起毛起球和耐磨牢度)的变化。结果表明,5次水洗过程对所测织物的厚度、透气性和磨损性的影响最大。     

混纺比对竹/棉混纺织物力学性能的影响

文章通过测试分析不同混纺比的竹/棉混纺织物的拉伸、顶破、撕破以及耐磨等四个方面的性能差异,来探讨竹/棉混纺织物的混纺比对其织物力学性能的影响规律.     

The effect of water repellency finishing on selected performance properties of upholstery fabrics produced from chenille yarns

Abstract

This study presents an evaluation of the effect of water-repellency finishing on the performance of upholstery fabrics manufactured from chenille yarns. Six different chenille yarns were manufactured as samples using piles made from three different raw materials (polyester, acrylic and viscose) and with two different heights. Then, six upholstery fabrics were woven used these chenille yarns in the weft direction and keeping all other weaving parameters fixed. Water repellency finishing was applied at 60% and 80% impregnation ratios using fluorocarbon-based finishing chemicals. The samples were tested for abrasion resistance and water repellency properties according to the standards. The results were evaluated statistically and graphically. The samples were analyzed before and after the abrasion process using a scanning electron microscope. As a result of the tests, water repellency of all the samples increased as expected after the finishing process. It was observed that the water repellency finish affected the abrasion resistance positively for all raw materials. Thus, the mass loss of the finished samples after the abrasion was less than that of the nonfinished samples. But, after the abrasion process, the water repellency of the samples was affected negatively.     

Investigation of the relation between surface roughness and friction properties of polyester fabrics after abrasion

This paper focused on the investigation of surface roughness and friction properties of polyester fabrics after abrasion. Experiments were performed on polyester woven fabrics produced from the same yarns in warp and weft directions but with different constructional properties. Surface roughness parameters of amplitude, spacing and hybrid, along with static and kinetic coefficients of friction were measured before and after multiple abrasion cycles. Abrasion was used in order to change the surface characteristic (peak and valley heights and depths and their distributions) in such a way by forming ruptured fiber ends under the control of abrasion. Measurements were made along warp, weft, and diagonal directions. The results showed that roughness parameters decreased numerically as abrasion cycles increased and as ruptured fiber ends formed. Static and kinetic coefficients of friction changed in different manners when measurements were performed along warp and weft directions. It was concluded that initial and resultant peak heights and valley depths together with their distribution on fabric surface govern roughness and friction properties of surfaces in opposite ways. Roughness parameters of skewness and kurtosis could be further considered in the research of friction properties of textile surfaces.     

Comparative study of copper ion complex bamboo pulp and cotton knitted fabrics. Part II: wearability and durability

Apart from the antibacterial performance, wearability and durability are also important factors for the textile product quality. The paper mainly discusses the wearability and durability of bamboo pulp and cotton-knitted fabrics which were treated with alkali and copper ammonia solution. Washing fastness, release properties of copper ions when washing, bursting properties, abrasion resistance, permeability, moisture penetrability, and warmth retention properties of fabrics were tested to investigate the change after copper ammonia solution treatment. The results showed that although the release quantity of bamboo pulp fabrics was higher, the washing fastness of bamboo pulp fabrics was better than that of cotton fabrics. After 90 times’ washing, the copper ion complex fabrics still had good antibacterial performance. For both cotton and bamboo pulp fabrics, properties of the bursting strength, moisture penetrability and warmth retention had been improved, whereas properties of abrasion resistance and air permeability had receded.     

黄麻混织针织物的设计与开发

本研究针对黄麻纱线粗硬、毛羽较多,弹性低等特点,对纱线毛羽、细度及强度进行测试并选择适合的棉及涤纶纱线进行混合。将黄麻与棉及涤纶纱线经过合股上蜡处理后,在针织横机上设计并编织罗纹、移圈、圆筒等不同组织和结构的黄麻混织织物及产品。通过对黄麻混织织物的耐磨性、透气性、抗起毛起球等性能进行测试与分析,结果表明麻涤1罗纹织物耐磨性、耐起毛起球性最好,而麻棉4为单面圆筒织物线圈密度最小,透气性能最优;麻棉2由于具有移圈及凹凸效果,透气性能次之,耐磨性稍差。所织织物适合制作具有田园风格的家居类装饰物,从而开发黄麻纤维更广泛的应用领域。     

Assessing colour differences of viscose fabrics knitted from vortex-, ring- and open-end rotor-spun yarns after abrasion

The colour values of fabric samples that are knitted from vortex-spun (VS), open-end rotor-spun and ring-spun yarns were evaluated after abrasion. We measured the changes of colour properties of each sample, considering spinning system, dyeing concentration and abrasion cycle, which have effects on colour values. The colour values of dyed fabrics knitted from ring spun yarns showed less change after abrasion than that of dyed fabrics knitted from open-end rotor-spun and VS yarns, when the spinning systems were compared. The colour values of dyed fabrics knitted from VS yarns showed more changes after abrasion because of the smooth surface of VS yarns.     

The Assessment of Fabric Wear and Handle Caused by Increments of Accelerator Abrasion in Dry Conditions Part I: Changes in Some Fabric Mechanical Properties as a Result of Abrasion

In this paper, sane aspects of the physical and mechanical properties of woven fabrics, such as mass, thickness, stiffness, air-permeability, and compression, are considered as criteria for assessing the effects of damage caused by changes in frictional abrasion when the Accelerator Tester is used. Two 100% cotton woven fabrics were used in the experiment. Results show that changes occurred in fabric properties as a result of incremental wear. The mass per square metre, coercive couple, and flexural rigidity show a consistent decrease, while thickness, air–permeability, and compression show inconsistent increases with increasing time of abrasion.     

硅胶黏度对汽车安全气囊涂层织物力学性能的影响

用不同黏度的硅胶与锦纶66织物经刮刀烘干式涂层工艺制得相应的汽车安全气囊涂层织物,对其力学性能如断裂强度、断裂伸长率、撕裂强度、耐磨性能和刚度进行了测试和分析。实验结果表明:硅胶性能和涂层界面分布对涂层织物的力学性能有着明显的影响,即随着硅胶黏度的降低,涂层织物的拉伸断裂强度、断裂伸长率、撕裂强度和耐磨性能均明显改善,而刚度维持不变。在设计安全气囊气袋时,应综合考虑材料成本和气囊模块功能来选用由合适类型的硅胶涂层的锦纶66织物。     

竹浆纤维含量及纬密对棉/竹浆纤维交织物力学性能的影响

对15种不同规格的棉与棉/竹浆纤维交织物面料的拉伸断裂强度、断裂伸长率、撕破强度、磨损牢度等力学性能进行测试比较,研究竹浆纤维含量及纬密对其力学性能的影响。结果表明：随着竹浆纤维含量增加,织物的经纬向拉伸断裂强力之和下降,纬向断裂伸长率上升,经向断裂伸长率先上升而后下降再上升;纬向撕破强力先下降而后上升,经向撕破强力变化不大;织物的质量减少率快速增加,织物磨损牢度变差,竹浆纤维含量为30%时,织物的磨损牢度最好;竹浆纤维含量达到70%时,交织物的断裂伸长率、撕破强力、摩损牢度均为最低,在实际生产应用中应尽量避免选用。当经密保持不变,纬密增加时,织物的断裂强力增加,断裂伸长率逐渐增大,撕破强力减小,耐磨性能提高。     

不锈钢涤棉混纺织物的性能研究

为了了解不锈钢织物的服用性能，试验研究了普通涤棉针织物与不锈钢涤棉混纺针织物的导湿性、透湿性、悬垂性、耐磨性、保暖性，并对两种织物的上述性能进行了对比分析。研究结果表明不锈钢混纺针织物具较好的湿舒适性能，但耐磨性较低，因此织物中应增加一定比例的涤纶。     

Enzymatic scouring and bleaching of cotton terry fabrics – opportunity of the improvement on some physicochemical and mechanical properties of the fabrics

In the present study, an attempt was made to treat cotton terry fabrics with alkaline pectinase enzyme and observe the effects on the properties including the degree of whiteness, water absorbency, pill formation, weight loss after abrasion, tenacity at maximum load, degree of polymerization (DP), and hand feeling of the fabric. The enzymatic treatment of cotton terry fabrics had a positive influence on some of their properties. The degree of damage of cotton terry fabrics after 20 washings in a domestic washing machine was determined by analyzing the tenacity at maximum load, weight loss after abrasion, fabric hand feeling, and the DP. Enzymatic-scoured fabrics had a higher resistance to abrasion, a lower decrease in the DP, and a higher rating of the fabric hand feeling compared with alkaline-scoured fabrics. Enzymatic processing was accompanied by a significant lower demand of energy and water. Consequently, at these processes arises the lowest amount of effluents and the produced wastewater is biodegradable. This study attempted to introduce enzymatic scouring (ES) and bleaching with peracetic acid (PAA) of the cotton terry fabrics.     

涤纶织物葡萄糖和肼化学镀银的研究

采用还原剂为葡萄糖和肼对涤纶织物化学镀银,借助SEM和XRD对镀层的表面形貌进行分析,并测试化学镀银织物的电磁波屏蔽、耐磨性、刚柔性和透气性.结果表明,葡萄糖作还原剂时镀层表面光滑、晶粒较小,电磁波屏蔽及耐磨性能均优于肼镀银织物;两种不同还原剂化学镀银织物的刚柔性基本不变,透气性有所下降.     

喷气涡流纱及其织物性能分析

文章对竹浆纤维和莫代尔纤维两种原料的喷气涡流纱与环锭纱及其织物进行了测试分析和比较,得出喷气涡流纱制成的织物与环锭纱制成的织物相比具有更加柔软,强度较低,表面光滑,耐磨,透气较好的特点。     

生物酶前处理棉织物的物理机械性能和服用性能研究

在生物酶前处理具有与碱前处理棉织物相近的润湿性和白度的基础上,对生物酶前处理棉织物的物理机械性能和服用性能进行了研究,认为生物酶前处理棉织物的撕破强力、顶破强力和耐磨性能优于传统碱前处理工艺,而且生物酶前处理棉织物手感柔软,悬垂性好,保暖效果显著.