镀银纤维抗菌织物设计方案探讨

探讨镀银纤维抗菌织物的合理加工技术方案.从镀银纤维外观特征和抗菌特征对抗菌织物设计影响的讨论出发,综合分析了混纺、交捻、交织等技术方案的技术特点.对镀银纤维抗菌织物加工的技术方案进行了讨论.认为:如果要防止镀银纤维固有的颜色影响织物的外观,可采取包芯纱工艺,纬向间隔织入织物;如果允许镀银纤维的颜色显现在织物表面,利用镀银纤维的颜色设计织物外观效果,可采用赛络菲尔纱工艺,纬向间隔织入织物.     

镀银导电织物的防辐射性能研究

以镀银导电纤维为研究对象,分析不同组织和不同导电纤维含量对织物防辐射性能的影响。试织了5块包含不等量镀银导电纤维的试样,3种为针织物、2种为机织物;测试了试样的导电性能和屏蔽效能,分析了镀银导电纤维含量和织物结构对织物屏蔽效能的影响。研究结果表明:屏蔽效能随着镀银导电纤维比例的增加而增大,针织物试样的屏蔽效能好于机织试样。     

镀银纤维与光触媒纤维长丝嵌织织物的抗菌性能研究

采用镀银纤维与光触媒纤维长丝以不同嵌织比例和不同织物组织结构制得织物样品,采用吸收法对大肠杆菌和金黄色葡萄球菌的抑菌效果进行了研究,考察了其抗菌效果。研究表明,所制备的抗菌织物对大肠杆菌和金黄色葡萄球菌有较好的抑菌效果,抗菌织物对于大肠杆菌抑菌效果优于金黄色葡萄球菌,斜纹织物的抗菌效果优于平纹织物和缎纹织物。研究认为织物的抗菌效果来自于银离子溶出性抗菌和TiO2的非溶性抗菌的协同作用。当镀银纤维和光触媒纤维嵌织比例为1︰1,并以斜纹组织织造时,织物中单质银质量分数为0.94%,TiO2含量为0.29%,织物具有良好的抗菌效果且生产成本较低。     

嵌织镀银纤维网格状况对抗电磁辐射的影响

设计经、纬纱镀银纤维和涤纶纤维的不同排列比例并进行小样试制,对各方案的试样进行抗电磁波性能测试,比较经、纬纱中镀银纤维和涤纶长丝纤排列比及不同镀银纤维含量与抗辐射性能的关系．结果表明,经、纬纱中镀银纤维排列越密集、银纤维含量越高,织物的电磁波屏蔽性能越好．比较了镀银纤维网格与抗辐射性能关系,证明织物的电磁波屏蔽性能与镀银纤维网格的大小具有较好的线性相关关系．     

镀银纤维分布对纬平针织物抗静电性能的影响

通过以镀银纤维为功能组分纺制不同混纺比的混纺纱,并与棉纱以不同间隔织成纬平针织物,通过对其静电性能的测试与分析．探讨镀银纤维含量与分布对织物静电性能的影响。结果表明,织物抗静电性随着织物中镀银纤维含量的增强而增强．但会受到嵌织非功,     

镀银纤维含量与分布对织物静电性能的影响

探讨镀银纤维含量及其在织物中的分布对织物静电性能的影响。通过测试和分析不同镀银纤维含量和分布的平纹织物电荷面密度,结果表明:随着镀银纤维含量的增加电荷面密度减小,但其变化趋势会受到间隔嵌织非功能性纱线的影响;非功能性纱线的织入会在织物中形成静电积聚区,织物的静电性能取决于静电积聚区的大小和功能纱线的防静电性能;非功能纱线的织入会恶化由于镀银纤维在纱线中分布的不均匀性造成的织物静电性能的不均匀性;与赛络菲尔纱织物和长丝交织织物相比,短纤混纺织物具有更好的防静电效果。     

镀银纤维分布对纬平针织物抗静电性能的影响

通过对镀银纤维纬平针织物静电性能的测试与分析,探讨了镀银纤维含量及其在织物中的分布对织物静电性能的影响.结果表明,织物抗静电性随着织物中镀银纤维含量的增加而增强,但会受到嵌织非功能性纱线的影响;非功性纱线的织入会在织物中形成静电积聚区,织物的静电性能取决于静电积聚区的大小和功能纱线的抗静电性能;非功能性纱线的织入会恶化由于镀银纤维在纱线中分布的不均匀性造成的织物静电性能的均匀性;在采用低混纺比抗静电功能纱线织造抗静电织物时,不应嵌织非抗静电纱线.     

镀银纤维多功能屏蔽织物的开发

介绍了镀银纤维的性能,含镀银纤维织物的设计方法、制作工艺及其用途,其对微波的屏蔽效果可达99.99%,且具有抗静电、调温和抗菌作用,但纤维外镀的银粉易脱落.     

镀银纤维混纺织物抑菌性能及机理分析

探讨棉镀银纤维混纺织物的抑菌性能及机理。采用不同含银量的镀银纤维与棉纤维纺制不同混纺比的棉镀银纤维混纺纱,并织制出不同含银量的棉镀银纤维混纺织物,测试了不同含银量、不同洗涤次数、与大肠杆菌不同接触时间的混纺织物对大肠杆菌的抑菌效果,同时测试了不同浸泡时间下混纺织物的银离子释放率。研究结果表明:棉镀银纤维混纺织物中的含银量在2%以上时,其对大肠杆菌的抑菌率可以达到100%;镀银纤维中的银含量、棉镀银纤维混纺比对混纺织物的抑菌效果均有明显的影响;镀银纤维的抑菌效果和镀银纤维表面沉积银层的离子化有关,银离子释放率越高,抑菌效果越明显。     

镀银纤维制备工艺及其织物性能的研究进展

镀银纤维是目前应用较广的一种导电纤维。介绍了化学镀银技术中的还原法制备镀银纤维的工艺以及镀银纤维的应用领域。综述了镀银纤维织物在防电磁辐射、抗菌性和抗静电性等方面的研究进展,为镀银纤维的开发及应用提供参考。     

壳聚糖载银抗菌纱的制备及性能初探

涤纶丝广泛用于抗菌纱和织物的制备。近年来,许多抗菌物质逐渐商业化,替代抗菌物质已成为抗菌纱加工研究的重要目的。大多数抗菌物质是通过直接浸泡或涂层的方式加载在抗菌纱上的。研究旨在通过二浸二压的纺织品整理工艺,将壳聚糖载银溶液固定到涤纶纱线上。通过扫描电子显微镜分析了纱线涂层前后结构的变化,并测试了其对金黄色葡萄球菌和大肠埃希菌的抗菌性能。试验结果表明,经壳聚糖载银溶液涂层处理的涤纶纱线均具有较好的抗菌性能,且试样R-3具有更优的抗菌效果。     

新型抗菌羊毛/羊绒混纺纱线生产工艺研究

目前羊毛羊绒类产品的抗菌处理,一般是通过与各类抗菌功能性纤维混纺或在织物后整理工艺负载抗菌剂来实现.本文采用色纺散纤在染色后处理阶段进行抗菌处理,然后通过半精纺色纺工艺生产抗菌羊毛羊绒混纺纱线,对其抗菌性能进行了测试.研究表明:通过在散纤染色后处理阶段对纤维进行抗菌处理生产出的羊毛羊绒抗菌混纺纱线其纱线指标与抗菌性能优...     

镀银混纺纱电磁屏蔽织物的开发与屏蔽效能

为了研发镀银混纺纱电磁屏蔽织物和系统研究镀银纤维混纺比及镀银纤维比例对织物屏蔽效能的影响,设计并生产了4种混纺比的镀银纤维/棉混纺纱,应用这些混纺纱设计并制织了不同镀银纤维比例的电磁屏蔽织物,织物规格为14.6/(18.2+14.6)524/283 160平纹。在织造过程中总结了实际生产中的问题与解决方案。最后利用平面材料电磁波屏蔽效能标准测试方法对织物的屏蔽效能指标进行了测试,经方差分析与回归分析得出以下结论:镀银纤维的混纺比对织物的屏蔽效能有显著的影响;织物中镀银纤维的比例与织物的屏蔽效能成对数函数关系,且织物的屏蔽效能随镀银纤维比例的增加而增大。     

Investigation on moisture management properties of knitted fabrics produced from vortex-spun yarns

Abstract

The aim of this study was to investigate the liquid moisture management performance of knitted fabrics produced from vortex-spun yarns using different kinds of fibers and ratios. For this purpose, the vortex-spun yarns with 19.7 tex were obtained in different blend ratios in Murata Vortex Spinner by using different fibers. Then, these yarns were knitted in a circular knitting machine at two different stitch lengths and dyed considering fiber types. Moisture management properties of the produced fabrics were tested. The results revealed that moisture management properties of vortex knitted fabrics were much affected by fiber types in comparison with fabric tightness. Modal and nylon fibers have shown very positive results in terms of moisture management performance. The vortex-spun yarns having a low diameter, high shape values that are more rounded, and high density improved moisture management performance of the fabrics whereas the hairy yarns and higher fabric thickness reduced it.     

Physical properties of ring,compact, and air vortex yarns made of PTT/wool/modal and wearing comfort of their knitted fabrics for high emotional garments

This study examined the physical properties of PTT/wool/modal yarns according to the yarn structure and the wearing comfort of their knitted fabrics for high emotional garments. For this purpose, the air-vortex, compact, and ring yarns and their knitted fabrics were prepared to analyze the wear comfort according to the yarn structure and the possibility of applications of the PTT/wool/modal blend fibers to air-vortex yarn. The wicking and drying rates of the air-vortex yarn knitted fabrics were superior to those of the ring and compact yarns fabrics, and the heat-keeping capability of the air-vortex yarn knitted fabric was higher than those of the ring and compact yarns fabrics due to the low thermal conductivity and maximum heat flow rate. In addition, the pilling of the air-vortex yarn knitted fabric was less than those of the ring and compact ones due to the air-vortex yarn structure with parallel fibers in the core part and the periodical and fasciated twists on the sheath part of the yarns. The tactile hand of the air-vortex yarn knitted fabric was harsher than those of the ring and compact yarns knitted fabrics because of the low extensibility and compressibility, and the high bending and shear rigidities.     

镀银长丝针织物的结构及其导电发热性能

镀银纤维作为一种高性能纤维具有广阔的应用前景。编织了四种不同组织的镀银长丝针织物：添纱平针组织,添纱1+1罗纹组织,添纱四平组织,衬纬组织,对通电后织物的发热效果进行分析后,决定采用衬纬组织。测试镀银长丝衬纬针织物的电热性能,结果显示：镀银长丝衬纬针织物通电后,织物的温度上升最后达到稳定状态,输入功率与稳定温升线性相关,织物的热稳定性较好,织物表面温度分布均匀。     

金属纱线排列方式对屏蔽效能的影响

为研究织物屏蔽效能的通用影响因素,采用金属纱线制备了不同排列结构下的模型样品,用屏蔽室法测试了1～18GHz内样品的屏蔽效能及反射系数。研究结果表明,采用屏蔽室法对样品测试时,由于电磁场的方向性,样品的放置方向对测试结果影响显著。金属纱线的排列间距是屏蔽效能的重要影响因素,屏蔽效能随着排列间距的增加而减小。同样排列间距下,不锈钢混纺纱样品的屏蔽效能和镀银纤维以及裸铜丝样品相近,高于不锈钢包芯纱和纯不锈钢长丝及其并捻纱样品。平行排列样品和网格排列样品的屏蔽效能一致。上述规律也适用于反射系数。     

抗电磁辐射精纺毛织面料的开发及其影响因素

 本文旨在通过两种加工方式研制成抗电磁辐射精纺面料,一种是镀银长丝与羊毛单纱并捻合股织造成并捻织物,一种是镀银长丝直接用作经纬纱与羊毛交织成交织物。由织物的屏蔽效能测试结果可知,并捻织物电磁屏蔽效能在2250-2650MHz波段内优于交织物,最高可达85dB,具有较好的抗电磁辐射效果。另外,经纬密度的变化对织物电磁屏蔽能力也有一定影响,两种织物紧度在78%左右、交织物羊毛与长丝比例为1:2时电磁屏蔽效果较好。其结果对开发高性能抗电磁辐射精纺面料有一定的指导意义。     

The effect of recycled fibers on the washing performance of denim fabrics

In this study, denim fabrics were produced with yarns obtained from cotton fibers (CO), recycled cotton fibers obtained from yarn wastes (r-CO), and fibers produced from recycled PET bottles (r-PET). Enzyme and stone washing processes were applied systematically on these fabrics. Mass per unit area, breaking force, elongation at max force, tear strength, air permeability, and circular bending rigidity of fabrics were measured. The findings showed that r-CO fiber has negative effect on tear and breaking force. Breaking force, elongation at max force, and tear strength values of the fabrics increased depending on the increase in r-PET content. However, fabric handle was negatively affected associated with the r-PET ratio due to the increase in stiffness. Mass per unit area, breaking force, air permeability, and circular bending rigidity values of fabrics decreased after the washing processes. The effect of fibers on enzyme- or stone-washed fabrics showed a change according to finished fabrics. It can be said that fabrics containing r-PET are more resistant than cotton and recycled cotton in various aggressive denim washing methods such as bleaching or different washing process conditions such as rising temperature, and time.     

集聚纺和环锭纺细纱及织物的芯吸性能

评价了集聚纺和环锭纺细纱及其织物的芯吸性能。实验结果表明,环锭纺芯吸比集聚纱快,由环锭纱制成的织物比集聚纱制成的织物芯吸快,纱线中纤维排列太紧从芯吸的角度来讲是不利的。