泡沫塑料的换代产品——PET纤维

台京有限公司开发的新型弹性聚酯纤维(PET)材料Elk具有一系列优异性能,诸如耐久性、透气性、重量轻和高度的阻燃性.它只产生极少量的有害气体,有利于环境保护.由于这些特性,这种新型材料有可能取代聚氨酯泡沫材料而制成极舒适的轿车耐久性坐垫、车内装饰品和其他座位材料.     

泡沫材料的换代产品--PET纤维

本文介绍一种新型聚酯结构 ,这种新型弹性聚酯纤维可以取代聚氨酯泡沫材料用作室内和车内装饰品 ,泡沫材料由于其环境适应性成问题和舒适性欠佳而招致抱怨。1　引　言　　日本帝人公司开发的新型弹性聚酯纤维( PET)材料 EL K具有一系列优异性能 ,如耐久性、透气性、重量轻和高度的阻燃性。它只产生极少量的有害气体 ,有利于环境保护。由于这些特性 ,这种新型材料有可能取代聚氨酯 ( PUE)泡沫材料而制成极舒适、弹性持久的装饰品 ,用于车辆、室内装饰和其他座椅材料。这种弹性纤维材料是以 PET纤维作为母材 ,其中一部分纤维呈空间弹性结…     

大麻纤维:再度引起关注的纺织纤维

大麻纤维具有耐用、卫生和附加值高等特点 ,是一种环保型的纤维原料 ,在许多方面都有着巨大的应用潜力 ,因而再次成为纤维的原材料。在市场竞争激烈和生产成本高的形势下 ,纺织工业要想生存 ,就必须定位于生产具有高附加值的创新产品。近几年来 ,纺织行业中出现了许多具有优越性能的新型纤维。它主要是指由普通化工原料生产出来的 ,但具有 (或经后处理后具有 )特殊结构的化学纤维。天然纤维同期也取得了很大的发展 ,但长期以来 ,它们的发展一直受化学纤维的制约 ,目前 ,人们正准备推出第四代化学纤维———舒适性纤维。虽然舒适性也是天然纤…     

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.     

纤维素纤维的氨基甲酸酯化变性研究

本文对尿素与纤维纤维的反应机制、反应条件以及尿素－纤维素衍生物，即氨基甲酸酯化纤维素纤维对阴离子染料和吸附性能和条件等作了探讨。实验结果表明，氨基甲酸酯化变性能明显提高纤维素纤维对阴离子染料的吸附能力，若应用于染色和污水脱色过程，具有工艺简单。成本低等特点。     

不同纤维织物湿传递性能的对比研究

对亲水性织物和疏水性织物的湿传递机理作理论分析和实验研究，理论分析在显汗条件下亲水性纤维由于吸水膨胀，导致毛细管半径减小，降低了湿气的传导和水分的蒸发，而疏水性纤维织物却能克服这个缺点。实验测试研究的结果验证了理论分析的正确性。     

合成纤维防静电与阻燃兼容的耐久性研究

改善复合兼容耐久性的关键是使阻燃剂分子牢固地深入合成纤维内部。因此，在复合兼容试验中增加前处理工艺和改用高温高压整理工艺，可取得较好的效果。     

竹浆纤维机织物的服用性能测试分析

设计了4种同组织、同规格的机织纯竹浆纤维、竹/棉混纺(70/30)和(50/50)及纯棉织物,用小样织机试织,对4种织物样品的吸湿性、透气性及抗静电性能进行测试分析.结果表明纯竹浆纤维机织物的吸湿性、透气性及抗静电性均优于纯棉机织物.     

纱线耐磨试验装置的研究

根据纱线在织造过程中的受力情况 ,设计了由磨头、往复机构、磨面转换机构、光电检测机构和计算机处理系统组成的纱线耐磨试验装置 ,通过试验分析了张力、摩擦速度对纱线耐磨性能的影响。试验结果表明 :该纱线耐磨试验装置能准确测定纱线的耐磨性能 ,为检测纱线质量、改进纺纱工艺提供了较为先进的检测手段。     

Solubility of Muscle Proteins as a Result of Autolysis and Microbiological Growth

Bovine Longissimus dorsi samples, collected aseptically 3 hr postmortem, were used to determine natural muscle enzyme activity. Samples of this tissue were inoculated with Pseudomonas putrefaciens or Lactobacillus casei and incubated 0, 1, 7, 14, and 21 days at 2°C and 0, 1, and 3 days at 25 and 37°C. Protein solubility, pH and microbial counts were determined after appropriate periods of storage. Only small differences were noted in the solubility of muscle proteins between the muscle treatments after 21 days of storage at 2°C compared to much larger differences noted after only 3 days of storage at higher incubation temperatures (25 and 37°C).     

几种磨盘材料耐磨性研究

通过对热磨机的磨盘材料不锈钢和高铬铸铁的耐磨性对比研究表明,高铬铸铁比不锈钢有更好的耐磨性。尽管材料含有相同的成分,但耐磨性也不同,是因为材料的微观结构对性能具有重要影响。同时也指出,开发的高铬铸铁制造的磨盘不需要复杂的热处理,这能简化生产工艺、节约生产成本、降低劳动强度以及提高生产效率。     

A New Process for Exhausting a Permethrin-based Mothproofing Agent on Wool Fibres

To rind appropriate systems to solubilize mothproofing agents and to promote their total exhaustion on wool fibres is essential from the environmental point of view. Since the predominant mechanism for the uptake of a water-insoluble mothproofing agent by the wool fibre is analogous to that of a disperse dyestuff, a permethrin-based mothproofing agent was applied to wool fibres under the same experimental conditions as those previously found suitable for non-ionic disperse agents.

A sodium sulphite/or sodium bisulphite/cationic-surfactant aqueous medium is a suitable system to solubilize and to promote the exhaustion of a permethrin-based mothproofing agent on wool fibres. This treatment system also confers shrink-resist properties on wool fabrics.     

粮食声传播阻抗特性研究

声阻抗是反映声学材料特性的一个重要参数,为了研究粮堆的基本声学性质,采用阻抗管传递函数法对小麦、精米、糙米、大豆、稻谷、玉米六种粮食进行了声阻抗特性的测量.探讨了粮食的声阻抗频谱性质,分析了声阻抗率随粮层物理状况不同而变化的现象.     

大麻纤维的性能及其应用研究

着重分析研究了大麻韧皮的化学成分及大麻纤维的形态结构和机械物理性能,大麻纺织品因其特有的纤维结构与化学成份而具有独特的性能和天然保健功能,大非纺织制吕也因其天然,环保而深受欢迎。     

Fibre Attrition in the Atlas Random Tumble Pilling Tester as a Measure of Abrasion-resistance in Knitted Wool Fabrics

Novel treatments for the reduction of dyebath induced hygral expansion are described. Their application in Neolan P dyebaths offers the potential for reduced dimensional instability with a limited impact on the final fabric colour.