用于产业用纺织品的新型轧光工艺

产业用纺织品市场稳步增长,其市场份额已占整个纺织工业的30％左右,各部分的增长率超过10％,由于不断的创新发展,工业上不仅用机织物,还用非织造布、毛毡类、薄膜和其他材料生产现代复合材料,在纺织品整理中,轧光工艺依然不可或缺,并决定着产品的最终质量一些需轧光整理的典型应用包括：安全气震材料、户外透气装、工业滤材、医药应用、降落伞、厚帆布、油布织物、包装材料、防护服、遮光屏或砂布。     

腐植酸的应用现状及其在纺织行业的应用前景

本文概括了目前腐植酸及其衍生物在污水处理、吸水树脂等方面的应用,并根据腐殖酸的结构与性能,对腐植酸在纺织材料方面的应用前景进行了展望.     

织物表面导电线路喷射打印起始端凸起形成过程研究

为提高织物表面微滴喷射打印导电线路的成形质量,针对导电线路喷射打印过程中线路沉积形貌的起始端凸起现象,利用高速相机对线路成形过程进行采集,研究微滴间融合振荡过程中左右接触角的动态变化,微滴与线路融合以及液体向线路起始端的输送过程,提出线路起始端凸起的消除方案并进行实验。结果表明:在融合振荡过程中,微滴向起始端的振荡趋势始终大于向另一侧的振荡趋势,导致打印线路起始端的织物基板润湿区域不断扩大;微滴与线路接触后,其中一部分液体润湿织物基板拓展线路长度,一部分通过线路以恒定速度输送至起始端,在线路起始端形成凸起;利用抗坏血酸溶液润湿织物表面后,成形线路起始端凸起现象得到消除,整体线路路径均匀,沉积形貌良好。     

偶氮着色剂ISO 14632-2017变更解读

ISO 14362—2017《纺织品源于偶氮着色剂的特定芳香胺的测定方法》对于前处理的流程、着色剂的测定范围、分散染料萃取溶剂的选择等做出技术调整,使该方法更为科学、合理和可操作性。介绍了新旧两个标准ISO 24362—2014和ISO 14362—2017的主要技术差别。以几种阳性样品为例,比较了两个标准测试结果的差别,并对产生差别的原因进行了验证试验。     

海藻酸钠/明胶共混膜的制备及其性能

用蒸馏水溶解海藻酸钠和明胶,将这两种溶液混合制得海藻酸钙/明胶复合功能膜,研究共混膜的相容性、力学性能、透湿性及吸湿保湿性等。试验结果表明,明胶含量较少时,共混膜有良好的相容性;海藻酸钙/明胶质量比为1∶0.6时,共混膜的力学性能、吸湿保湿性较好。     

Building a sustainable supply chain: an analysis of corporate social responsibility (CSR) practices in the Chinese textile and apparel industry

This study aims to analyze the development, achievements, and challenges of corporate social responsibility (CSR) practices in the Chinese textile and apparel industry. The determinants of CSR movement in the industry are discussed. The World Bank CSR Diamond Model based on stakeholder theory provides an analytical framework to address this complex issue in a systematic way. The relevant information and data were gathered from an extensive literature review of governmental, industrial and academic publications, and interviews. Overall, the tightening legal environment for CSR development has raised the cost of doing business in China in a short time. While forward‐looking companies are already taking CSR into account in their daily operations and strategic plans, some resistance to the execution and enforcement of CSR‐related laws and regulations have been witnessed. However, from a long‐term perspective, the CSR movement will benefit towards upgrading the industry and the healthy growth of China's economy, and contribute to the sustainable global textile and apparel supply chain.     

Eco-friendly printing of natural fabrics using natural dyes from alkanet and rhubarb

In the present work, the suitability of printing natural fabrics (wool, silk, cotton and flax) with two natural dyes (alkanet and rhubarb) using pigment-printing technique has been investigated. The effect of different factors, i.e. dye concentration, nature of thickening agent, type of fixation, concentration and type of mordant, has been studied. The printed goods were evaluated by measuring the K/S value and the overall fastness properties. Results show that the highest K/S value was obtained by using Meypro gum as a thickener. The K/S increases rapidly as the concentration of the natural dye powder in the printing paste increases from 10 to 40 g/kg printing paste. Moreover, results show that the printed goods, which were fixed via steaming, have relatively higher colour strength than their corresponding samples fixed via thermofixation. The effect of mordants on colour development was also studied and alkanet dye was chosen as an example for this investigation. The best results were obtained by using mordant at a concentration of 20 g/kg printing paste. Different colour yields could be obtained by using different mordants, and all of colour fastness results were ranging between very well and excellent.     

EEC Inter- laboratory Tests on Methods of Analysis of Fibre Mixtures EEC Working Party on Textile Names and Labelling - Analysis

Abstract

With today's global competitive marketplace, new textile product development requires a design, marketing, materials and technology interface. An opportunity existed to examine the new textile product development processes being used by global textile companies with a variety of textile product end-uses: apparel, home textiles, transportation, industrial, nonwovens, carpets, and medical textiles. The Crawford and DiBenedetto model (2003) was used as the conceptual framework for the study and data was collected using secondary and primary data sources. A total of 24 global companies, based in the United States, comprised the sample for this study. Each company's new textile product development processes, practices, and new products were examined, with identification of key new product development concepts being utilized. Results indicated that companies were utilizing new product development (NPD) processes as a competitive tool, but are using a combination of NPD strategies to develop and launch products in the global marketplace.     

Impact properties of thermoplastic composites

The excellent properties exhibited by thermoplastic composites at much reduced weight have attracted attention in the development of products in different sectors. Thermoplastic (TP) composites, because of their distinctive properties as well as ease of manufacturing, have emerged as a competitor against the conventional thermoset resin-based composites. Depending on the application, these composites may undergo impact events at various velocities and often fail in many complex modes. Hence, the development of TP composites having high energy-dissipation at (the desired) much-reduced weight has become a challenging task, but it is a problem which may be alleviated through the appropriate selection of materials and fabrication processes. Furthermore, fibre surface modification has been shown to increase fibre-matrix interfacial adhesion, which can lead to improved impact resistance. Textile preforms are helpful in acting as a structural backbone in the composites since they offer a relatively free hand to the composite designer to tailor its properties to suit a specific application. Additionally, hybrid textile composite structures may help in achieving the desired properties at much lower weight.

Simulation software can play a significant role in the evaluation of composites without damaging physical samples. Once the simulation result has been validated with actual experimental results, it should be possible to predict the test outcomes for different composites, with different characteristics, at different energy levels without conducting further physical tests. Various numerical models have been developed which have to be incorporated into these software tools for better prediction of the result.

In the current issue of Textile Progress, the effects of various materials and test parameters on impact behaviour are critically analyzed. The effect of incorporating high-performance fibres and natural fibres or their hybrid combination on the impact properties of TP composites are also discussed and the essential properties of TP polymers are briefly explained. The effects of fibre and matrix hybridization, environmental factors, various textile preform structures and fibre surface modification treatments on the impact properties of thermoplastic composites are examined in detail. Various numerical models used for impact analysis are discussed and the potential applications of TP composites in automobile, aerospace and medical sectors are highlighted.     

蓄热调温织物低温防护过程的数值模拟

为提升普通织物的低温抵抗性能,将具有蓄热调温功能的相变微胶囊涂覆至织物表面制得蓄热调温织物,通过Fluent 软件对复合织物的低温防护过程进行模拟,在此基础上设置了蓄热调温织物的低温防护试验对模型的模拟精度进行检验,并模拟探究了微胶囊的相变潜热以及其在织物中所占的体积分数对蓄热调温织物低温防护性能的影响。结果表明:数值模拟结果可显示不同时间节点蓄热调温织物的温度场分布情况以及各区域的温度变化趋势,且试验结果与模拟结果的误差小于8.64%,该模拟结果可较为准确地再现蓄热调温织物的低温防护过程;当微胶囊的相变潜热由50 J/g增加至200 J/g时,织物的低温防护时间延长了70.1%;当微胶囊的质量分数由1%增加至5%时,织物的低温防护时间由214 s延长至388 s,同比提升了81.3%。