Outlast改性腈纶棉混纺纱调温性能研究

研究混纺比对Outlast改性腈纶棉混纺纱调温性能的影响。使用Origin7.5软件拟合出Outlast改性腈纶棉混纺纱调温性能与混纺比的关系曲线。试验结果表明:Outlast改性腈纶棉混纺纱的调温性能随着Out-last改性腈纶纤维含量的增加呈线性递增,且当Outlast改性腈纶纤维含量大于40%时,混纺纱的调温性能较明显;Outlast改性腈纶纤维纯纺纱的热焓值明显小于Outlast改性腈纶纤维的热焓值,由此认为纱线纺制过程对Outlast改性腈纶纤维纱线的调温性能也有影响。因此,只有采用适当的纺纱工艺参数配置,才能保证纱线较好的调温性能。     

Outlast改性腈纶纱线的力学性能测试

研究Outlast改性腈纶纱线的力学性能.测试分析了三种Outlast改性腈纶棉混纺纱线和纯Outlast改性腈纶纱线的强伸性能、弹性和蠕变性能.结果表明:Outlast改性腈纶纱线的力学性能与混纺比关系密切.随着纱线中Outlast改性腈纶纤维含量的增加,纱线的断裂强度和弹性回复率逐渐减小,断裂伸长率和断裂功逐渐增大,其中混纺比为50/50的Outlast改性腈纶棉混纺纱略有例外;纱线蠕变现象随Outlast改性腈纶纤维含量的增加而增强,拉伸速度、载荷等试验条件对于测试纱线蠕变性能非常重要.指出:实际生产中选择混纺比为40/60的Outlast改性腈纶棉混纺纱对于提高产品质量和降低成本更为有利.     

莱伯哥自拈纺纱机纺制腈纶纱线

据泼拉特国际公司称,经数月鉴定,莱伯哥自拈纺纱机现已能纺制双股高膨腈纶针织纱线。这种纱线是兼有正反拈的自拈纱线(ST),它不需进一步加拈即可使用。由于大量节省了进一步加拈所需的成本.因此被人们重视。据说有 15套设备专门用于上述纺纱,另外报导了用其他纤维纺制自拈纱线(ST)也相当成功,包括正规腈纶纤维、聚酯与羊毛或粘胶混合纤维。莱伯哥自拈纺纱机纺制腈纶纱线     

竹纤维与腈纶混纺针织纱产品的开发及工艺研究

针对竹纤维与腈纶纤维的特性，结合生产实践，通过工艺试验，分析了竹纤维与腈纶纤维的性能、纺纱工艺等因素对纱线质量的影响，探讨了提高竹纤维混纺纱质量所采取的有效措施。     

Dralon细特异形腈纶纱线强伸性能测试分析

探讨Dralon细特异形腈纶纤维纯纺、混纺纱线捻系数和混纺比对强伸性能的影响。在棉型纺纱试验机上,纺制了7种不同捻系数的Dralon细特异形腈纶14.5 tex纯纺纱、6种不同混纺比例的Dralon细特异形腈纶/棉14.5 tex混纺纱,并测试了纱线的断裂强度和断裂伸长率,对其捻系数、混纺比例与纱线拉伸性能之间的关系进行了回归分析。结果表明:14.5 tex细特异形腈纶纯纺纱线的临界捻系数在338左右。Dralon细特异形腈纶/棉混纺纱混纺比例为40/60左右时,混纺纱断裂强力最低、断裂伸长率较差;随着Dralon细特异型腈纶纤维含量的增加,混纺纱断裂强度及断裂伸长率均呈上升趋势。认为:纺制Dralon细特异型腈纶/棉混纺纱时,Dralon细特异型腈纶的含量最好大于40%。     

硫酸在腈纶染色中的应用

比较了冰醋酸和硫酸两种酸浴条件对腈纶纤维染色效果的影响。结果表明：硫酸对腈纶纱线染色的色度值、染色深度、染色牢度影响不大，而且硫酸还有其它独特性能，因此，在腈纶染色中以硫酸代替冰醋酸有一定的应用价值。     

腈纶预氧化纤维生产工艺与应用开发

采用腈纶预氧化纤维大丝束直接制条及毛型纺织工艺,研制生产了腈纶预氧化纤维纱线、织物和非织造毡。该工艺拓宽了纱线的可纺支数范围,改善了成品实物质量,提高了产品制成率,降低了原料成本。利用该工艺生产的纤维、织物已开发出航椅挡火层材料、耐热防热辐射材料、盘根用纱、功能服用产品及产业用品等系列高性能耐热制品。     

腈纶纤维染色

一、概说 阳离子染料（Sandocryl B）对各种型号、不同形态的腈纶纤维,如散纤维、长丝束、纤维条、纱线、机织物和针织物都可进行染色。并适用于腈纶与天然纤维或其它合成纤维的混纺产品。 对不明来源的腈纶纤维的染色性能可通过与已知型号的纤维的对比染色试验而确定（见第十一节）。 二、前处理     

腈纶与纤维素纤维混纺用钢领钢丝圈的选配

为解决腈纶与纤维素纤维混纺面料横档问题,介绍腈纶纤维弹性好、膨松性好、织物有毛型感且同号数的腈纶纱比棉及涤棉纱略粗的特性,分析毛羽是造成腈纶与纤维素纤维混纺面料横档的原因;优选纺纱用钢领、钢丝圈且进行成纱指标对比。指出:选配钢领、钢丝圈时应保证纱线通道宽畅,减少对纱线的摩擦;PG1-4054型钢领配TPJM1EMgc型钢丝圈,使纺腈纶/莫代尔70/30 11.66tex赛络紧密纱1mm毛羽指数得到改善;环锭细纱机锭速控制在15kr/min以下,有降低毛羽的效果。     

罗布麻针织用纱设计与开发

为了设计开发出质量优异的罗布麻混纺针织用纱,首先针对罗布麻纤维的形态结构及其物理机械性能进行研究分析,然后根据罗布麻纤维的特性将罗布麻纤维与腈纶、莫代尔纤维按混纺比30/50/20纺制成线密度为18.5 tex的纱线。同时,通过正交试验法分析细纱工序中的后区牵伸倍数、隔距块及钢丝圈型号对成纱质量的影响,从而优选出最佳工艺。并对最优工艺下所纺的纱线进行哈氏切片试验,利用Photoshop软件对纱线截面图像进行处理,通过汉密尔顿纤维转移指数方法来分析混纺纱中的纤维转移及径向分布。结果认为:罗布麻纤维的长度整齐度较差,但吸湿透气性、抗菌性较优;罗布麻、腈纶以及莫代尔纤维均具有向纱线外层转移的趋势,但是莫代尔纤维转移的趋势不如罗布麻及腈纶。     

自捻纱的拉伸力学性能

针对自捻纱断裂强力和断裂伸长率较低的问题,通过对同种原料自捻纺纱线和环锭纺纱线的拉伸力学性能进行对比,讨论了适合自捻纺纱的纤维和必须经过复合才能进行自捻纺纱的纤维以及对纤维配比的要求。与环锭纺纱线相比,羊毛、腈纶、涤纶自捻纱的断裂强力依次降低81.25%、49.33%、31.39%。涤纶、腈纶等纤维能直接采用自捻纺加工方式,而羊毛和苎麻不能直接采用自捻纺纱,必须和其他原料复合自捻。分别对毛/涤纶、麻/涤纶、腈纶/涤纶双组分复合自捻纱进行拉伸力学性能分析,结果表明,要使纱线拉伸性能符合要求,2种原料的组分中涤纶纤维含量需满足：毛/涤纶纱中占60%以上,麻/涤纶纱中占71%以上,但腈纶/涤纶纱的纤维配比不受限制。     

腈纶起毛起球的影响因素研究

通过实验、测试并比较分析新型腈纶纱线与普通腈纶纱线性能,并对采用上述两种腈纶纱线编织不同密度的织物性能进行测试比较。     

Studies on cotton–acrylic bulked yarns produced from different spinning technologies. Part I: yarn characteristics

The effects of different factors, namely spinning technologies (ring, rotor and DREF-II, i.e. Group A yarns), position of shrinkable acrylic feed sliver in DREF-II friction spinning system (Group B yarns) and proportion of shrinkable acrylic core fibre in core-sheath type DREF-III friction spun yarns (Group C yarns) on various properties of cotton-acrylic–blended bulked yarns have been studied. The bulk in the yarns was developed by relaxing shrinkable acrylic component of the yarns using boiling water treatment. All the above factors have a significant impact on various properties of cotton–acrylic blended bulked yarns. For all the yarns, after boiling treatment, there is lengthwise shrinkage of yarns and the specific volume also increases. Tenacity and breaking elongation of all the yarns of Group A and Group B increase after hot water treatment, whereas in case of core-sheath type DREF-III yarns (Group C yarns) there is drop in tenacity and breaking elongation after similar treatment. In general, for all the yarns the flexural rigidity of the yarns reduces and compressibility and compressional recovery of increases after bulking treatment.     

The effect of blend ratios of unrelaxed and relaxed acrylic fibres on physical properties of high-bulk worsted yarns

Abstract

High-bulk acrylic yarns which contract and increase in bulk during the heat relaxation process are produced by blending two types of fibres with different shrinking power in the spinning process. In this paper, high-bulk acrylic yarns (steamed and dyed) with different shrinkable fibre blending ratios were produced. Experimental results show that by increasing the shrinkable fibre blending ratio up to 40%, the specific volume and shrinkage of both dyed and high-bulk acrylic yarns are steadily increased while their tensile strengths are decreased. Further increasing the shrinkable fibre blending ratio causes the specific volume and tensile strength properties to decreased and increased respectively. However, the yarn shrinkage does not change significantly. It is also found that both dyed and high-bulk acrylic yarns have the highest elongation at 20% shrinkable fibre blending ratio. In general, the specific volume and tensile strength of high-bulk acrylic yarns are more than those of dyed acrylic yarns but their shrinkage and elongation values are similar.     

Comparison of the properties of Ring,Solo, and Siro core‐spun yarns

In this research, core‐spun yarns with an acrylic sheath fiber and a nylon flat core have been produced on the Ring, SIRO, and Solo spinning systems and the effects of some factors were investigated. The studied factors consist of filament pre‐tension (i.e. 1, 7/5, 10, 15, 50, and 100 g), spinning system (Ring, SIRO, and Solo), and feed position of the core filament in the strands of sheath fibers (six types of feed positions). Also, their physical and mechanical properties, including strength, elongation percentage, abrasion resistance, percentage of coefficient of variation (CV%), and hairiness, were all investigated. Finally, in each stage, the best case was determined. The results show that the quality of the core‐spun yarns produced by the SIRO spinning system is better than that of the Ring and Solo core‐spun yarns.     

腈纶/天丝/锦纶混纺纱的染色工艺研究

腈纶/天丝/锦纶混纺纱染色时,染浴中先加入防沉淀剂,然后采用阳离子/酸性染料同浴分别上染腈纶/锦纶组份,然后再在天丝组份套染活性染料,通过水平及正交试验,优化腈纶/天丝/锦纶混纺纱的染色工艺,有效地解决色花问题。     

Studies on cotton–acrylic bulked yarns and fabrics. Part I: Yarn characteristics

The effect of variables, namely yarn fineness, shrinkable acrylic proportion and twist level, on various properties of cotton–acrylic blended bulked yarns has been studied by relaxing shrinkable component of the yarns using boiling water treatment. A three-variable factorial design technique proposed by Box and Behnken was used to investigate the combined interaction effect of the above variables on the properties of these yarns. The design variables were optimized for all the yarn properties by using the response surface equations. The shrinkage percentage of yarn was found to be higher in the case of coarser yarn, yarn with higher proportion of acrylic fibre and higher twist level. During bulking treatment as the yarns shrink, the effective number of twist per unit length also increases significantly. It is observed that the specific volume of the yarn increases with an increase in the acrylic proportion and decreases with an increase in the twist factor. The breaking extension increases significantly after bulking with a slight increase in tenacity. The flexural rigidity and initial modulus of yarn considerably decrease on bulking. The vertical wicking heights for all the bulked yarns were found to be higher than comparable 100% cotton yarn.     

Geometry of fiber distribution in Marl yarn using the computational method

In this research, the structure of a type of bi-component composite yarns so called Marl yarn was studied. Fibers packing density factors within the yarn cross section as well as the effect of twisting on the resultant yarn were investigated. Samples of Marl acrylic yarns were provided using different twisting levels. Images of the cross sections of the produced yarn were obtained using the transverse sectioning method. The images were captured using the optical microscopy. The prepared images of the yarn cross section were then analyzed using image processing methods. In the first stage, yarn central coordinates and radiuses were calculated. In order to investigate the uniformity of fibers distribution and packing density within the yarn cross section, the fiber distances from the yarn center within the small radial and polar elements were calculated and the coefficient of variations (CV %) was determined. The maximum value of the fibers packing density was determined. The results showed that the fibers were mostly concentrated within the central region of the yarn; this was followed by the decrease in the fibers packing density while moving into the yarn’s outer layers. It was also concluded that increasing the intensity of the applied twist would result in higher fibers packing as well as the decrease in the yarn radius.     

快时尚针织面料用混纺纱的设计与分析

根据目前快时尚服装面料的用纱需求,通过测试分析黏胶纤维、腈纶的物理力学性能,选取0.10、0.13和0.17 tex 3种不同线密度的纤维,与锦纶和PBT长丝进行配伍混纺,在相同的纺纱工艺条件下,设计试纺6种相同规格的混纺包芯纱,测试分析最终成纱的强伸度、毛羽指数和条干均匀度.结果表明:不同线密度的黏胶纤维、腈纶与锦纶...     

腈纶及腈/毛交织物的起毛起球性研究

文章通过实验分析了不同组织结构的纯腈织物和不同交织比腈/毛织物的起毛起球性能.织物组织结构和色纱配置状态会对织物起毛起球性有直接的影响,不同交织比的腈/毛交织物,腈纶含量高、腈纶纱线间交织面积大,则织物起球严重.文章还研究了纯腈织物经过摩擦后起球状态的变化趋势,摩擦次数小于100次时,织物表面的毛球数随着摩擦次数增加而增加,但摩擦次数大于100次后,毛球有明显脱落的趋势.由此探讨了从织物结构和色纱配置方面提高腈纶仿毛织物和腈/毛交织织物抗起毛起球性的设计方法.