水刺非织造布专用彩色棉纤维

介绍了彩色棉纤维的预处理、性能以及在水刺加工过程中所应注意的问题 ,分析了彩色棉非织造布的主要特点。     

精纺同向捻产品的设计与工艺探讨

重点介绍了精纺同向捻产品的风格特点、加工工艺和质量控制.由于精纺同向捻产品纱线结构的特殊性,纱线加捻后捻度不稳定,在整经和织造时容易产生纱线扭结形成小辫子纱,使织造和后整理的生产具有较大的难度.在产品开发过程中,对精纺同向捻产品中的产品设计参数选择、生产上机工艺的确定,以及关键工艺技术和质量控制方法等进行了多次工艺试验和质量攻关,最终确定了适合精纺同向捻产品生产的设计参数,解决了工艺技术和质量控制方面存在的关键问题,企业大批量生产的产品质量得到了客户认可,并取得了较好的经济效益.     

基于RGB颜色模型棉花杂质的识别算法

介绍了原棉在线异性纤维检测系统的结构及工作原理。采用RGB颜色模型,以色度为主要特征量,设定阈值对棉花和异物的像素点进行判别。并通过Visual C++语言实现了此算法,得到了较好的效果。     

转基因棉花MON88913转化体特异性定性、定量PCR检测方法

本文以我国批准商业化的转基因耐草甘膦棉花MON88913为研究对象,建立并验证了其转化体特异性定性、定量PCR检测方法.建立的定性PCR方法的检测极限是20个拷贝棉花单倍体基因组DNA,定量PCR方法的检测和定量极限分别是10和20个拷贝棉花单倍体基因组DNA.同时,我们组织了实验室5位研究人员对建立的定量PCR检测方法进行了协同验证.对5个盲样的定量分析结果显示与真实值的偏差介于1.59% 和10.12%之间,完全满足国际标准25%偏差范围的要求,完全可用于转基因棉花MON88913的实际样品检测.     

Eco-friendly food products as source of natural colorant for wool yarn dyeing

ABSTRACT

Food products as a source of natural colorants are gaining widespread popularity around the globe due to their ayurvedic and eco-friendly nature. Current study is aimed with the utilization of food products (Saffron and madder) as a source of dye for woolen yarn. It is found that, for Saffron, irradiation of yarn for 6 min gives high color strength by dyeing for 45 min in the presence of 2% of salts using un-irradiated dye bath of 1 pH, whereas for madder, 4 min is optimal irradiation time for extract to dye irradiated yarn for 25 min in the presence of 6% of salts using the irradiated dye bath of pH 1. The mordanting carried out at optimal conditions show that using both extracts, woolen yarn dyed at optimal conditions has given good color characteristics. It is concluded that microwave radiation has not only improved natural dyeing process but also make the process more eco-friendly and sustainable as well.     

Synthesis of Silver Nanoparticles and Exhaustion on Cotton Fabric Simultaneously Using Laser Ablation Method

ABSTRACT

In this experimental research, the silver nanoparticles were synthesized on cotton fabric using laser ablation method in the same bath. Also the effects of the size of silver nanoparticles (NPs) on the structural and antibacterial properties of silver NP-coated cotton fabric have been investigated experimentally. A pulsed laser beam was used for synthesis of Ag NPs on cotton fabric. Pulses of a Q-switched Nd:YAG laser of 1064 nm wavelengths at 7 ns pulse width and different fluencies was employed to irradiate the Ag target in deionized water in the presence of cotton fabric. Four samples were prepared using different laser fluencies. The amount, size, morphology, and structure of produced NPs were studied using their spectrum in the range of UV to IR, and scanning electron microscopy methods. Fabrics were polluted by gram-positive Staphylococcus aureus bacteria. The colony counting method was used to investigate the antibacterial activity of prepared cotton samples. Results show that laser ablation for synthesis of Ag nanoparticles on cotton fabric is an inexpensive fast method for producing antibacterial fabrics.     

纯棉针织物的低COD前处理

采用矿物精练剂NOVECO、矿物双氧水稳定剂RENA和传统精练剂EWN、传统双氧水稳定剂FCB对纯棉针织物进行精练和漂白前处理。分别比较了两种矿物助剂以及两种传统助剂的两浴两步法与一浴一步法的废水COD含量,及两浴两步法工艺中助剂对织物处理效果的影响。结果表明,两浴两步法的废水COD含量较低;采用矿物助剂前处理可达到传统助剂前处理的效果,且可有效地降低废水的COD含量。研究了两种矿物助剂两浴两步法工艺的废水沉淀时间及两种矿物助剂用量对废水的COD含量的影响,得到优化工艺为废水沉淀时间15min,矿物精练剂NOVECO 1 g/L,矿物双氧水稳定剂RENA 1 g/L。     

新型聚氧乙烯醚马来酸双酯在皂洗中的应用

合成了一种新型的阴离子-非离子双子表面活性剂羧化硬脂醇聚氧乙烯醚马来酸双酯(POE-5),并将其应用于活性染料染色棉织物的皂洗。对K/S值、L*值、耐洗色牢度及摩擦牢度等指标进行分析,探讨皂洗温度和POE-5用量对皂洗效果的影响。结果表明:优化的皂洗工艺为皂洗温度60~80℃,POE-50.5 g/L,皂洗后染色织物的K/S值和各项牢度可达到或超过标准皂洗(皂片2 g/L,温度100℃)的效果。     

棉短绒H2O2一步法蒸漂制浆的不足及对策

现行棉短绒制浆采用H2O2一步法蒸漂制浆工艺,即棉短绒脱脂、去除木素、去疵点与H2O2氧化漂白同时进行,由于脱脂、去除木素、去疵点的最适宜温度与H2O2蒸漂不同,脱脂滞后于H2O2分解,降低了H2O2的利用率。本文分析了H2O2一步法蒸漂制浆的不足,并提出了3种改进措施,即采用二步法蒸漂制浆、混合蒸漂工艺及改进一步法蒸漂的升温曲线等,以提高H2O2的利用率,降低废水中的COD。     

利用Sirofil技术开发羊绒混纺闪色纱

文章从原料选择、纺纱流程、工艺参数、关键措施等方面探讨了如何利用羊绒、阳离子改性涤纶和三角截面涤纶生产Sirofil闪色纱,该纱由于具有独特的色光效果,因而具有广阔的发展前景和可观的经济效益.