Effect of the Minimum Diameter and Its Relevant Parameters on Wool Quality

It is important to measure wool diameter as the wool quality depends on the fibre diameter D and its deviation CVD. According to IWTO standards, the fibre diameter parameters can be tested with the methods of Airflowmeter, DA; Sirolan-Laserscan, DL and CVDL; and OFDA, Do and CVDo. However, these parameters only characterize the average diameter and the variation between the fibres. A single fibre analyzer (SIFAN) can be used to measure fibre profile along the fibre and fibre tensile properties simultaneously. The results obtained from the four methods show that there are i) high relationships between Laserscan values and the results of Airflow, OFDA and SIFAN in the average diameters; ii) correlations between CVDL and CVDo or CVDave; iii) the high correlation between Dave-Dmia but a low correlation between Dave-Dmax; and iv) the relationships between the wool quality and the ratio of Dmln/Dave and Dmin/DL. Based on the results and discussions, the effective measurement of wool diameter should be the SIF     

羊毛的激光衍射

在羊毛的激光衍射图案中，出现了一种未曾料到的细条纹现象．本文用双光束干涉理论进行了解释，得到了与实验符合较好的结果     

特种动物毛纤维的性能研究

本文对特种动物毛纤维,即山羊绒、兔毛、骆驼毛和牦牛毛所进行的系统测试分析,除采用常规测试方法外,还运用实验室近代测试手段对特种动物毛的纤维性能与微观结构间关系作了探索,分析了不同纤维间的结构差异是导致性质差异的原因。     

Effect of Testing Conditions on Fibre-Bundle Tensile Properties Part Ⅱ: the Gauge Length and Elongation Speed in Wool Fibre Bundle Measurement

The testing conditions of a fibre bundle tensile tester (TENSOR) are elongation speed (ES), gauge length (GL), pretension, jaw pressure, environmental temperature and relative humidity, instrument linearity and sensitivity. The effects on fibre-bundle tensile properties at different GL and ES have been discussed in detail and compared with Peirce's theories on the weaklinks and the breaking time effect. The experimental results indicate that the tensile properties of fibre bundles are strongly affected by GL and vary with different GL. The reasonable GL should be 5-15mm rather than 3.2mm for wool bundle measurements. The ES ranging from 20mm/min to 40mm/min is beneficial for obtaining comparatively stable and accurate tensile values, whereas 20 mm/min used in current testing for wool fibre bundles is at the lower limit of the suggested range. For bundle modulus measurement, the sampling interval must be selected appropriately. The new calculation of the sampling interval has been established.     

国产原毛的强力特征与测试

通过对国产细羊毛原毛的毛丛强度、单纤维强度和直径形态特征的分析和研究,提出用国毛单纤维中段强力来评定原毛的强力,并就其对毛条加工性能的影响进行了探讨.研究发现:原毛单纤维中段强力可以在一定程度上反映国毛纤维的强力特性,且它与毛条加工性能具有一定的相关性.     

藏氆氇织物服用性能的测试与评价

为揭示藏氆氇织物独特的服用性能与原理,对结构相近的藏氆氇织物与普通毛织物以及化纤织物的规格、结构参数、舒适性能和耐用性能4方面进行试验测试与比较分析.结果表明藏氆氇织物属于门幅窄小(23～27cm)的全毛斜纹厚重型织物,其具有经密小、纬密大,经纱粗、纬纱细,经向紧度小、纬向紧度大、总紧度大于100%的结构特征,且具有保暖、防风、防潮、沾水少和坚牢耐磨的独特服用性能,从而表明其对于青藏高原的自然环境和当地的生产生活具有良好的适用性.     

羊毛纤维和黏胶长丝玻璃化转变的测试和应用

利用动态力学分析的温度扫描和湿度扫描试验测试了羊毛纤维和黏胶长丝的玻璃化转变,两种纤维在温度扫描试验中并没有表现出玻璃化转变行为,而在湿度扫描试验中存在玻璃化转变特有的特征.通过比较不同温度下的转变行为,初步探索了湿度及染色对黏胶长丝玻璃化转变的影响.     

弹力毛织物面料的成衣加工性能

采用KES系统测试多种弹力毛织物面料的拉伸性能、剪切性能、弯曲性能、压缩性能、表面性能等,通过绘制缝制加工控制图分析弹力毛织物面料的力学性能与成衣加工性能的关系.结果表明,在服装加工过程中,铺料、裁剪、缝制等工序与弹力毛织物面料力学性能指标密切相关.     

纯毛服装极光的研究(第Ⅰ报)

用改制的织物极光发生仪对纯毛织物进行模拟实际穿着时的摩擦状况实验,对各试样的表面光泽度进行测试。确立了以光泽变化率(ε)这个指标作为人们视觉判断纯毛服装出现极光有效界限值,并结合各试样在受磨前后的织物、纱线及纤维结构的电镜片分析了纯毛服装生极光的机理。     

N-端基茚三酮溶液显色法测试国产羊毛的化学损伤

用N-端基茚三酮溶液显色法测试了几种国产羊毛的化学损伤,实验结果表明,此方法在对国毛化学损伤的定量分析中具有很好的精确度和再现性。