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纱线捻度的知识gydF4y2Ba
纱线捻度的知识gydF4y2Ba2022年1月17日,gydF4y2Ba

纱线捻度的知识gydF4y2Ba

纱:纱和线程的通用术语。有很强的条幅,包括单纱和股。单纱:由短纤维处理,使短纤维或电线沿着轴向方向和扭曲。合股纱:它是由两个或两个以上的单纱和扭曲。其强度和耐磨性优于单纱。同时,合股纱也可以组合和扭曲以某种方式获得复合捻合股纱。捻线是什么?如果带的一端,另一端转动时,纱线就可以形成,称为扭曲。短纤维,扭曲的必要手段是使纤维纱条。通常需要浓缩的纤维成纤维带扭转之前,和外层纤维的纤维被挤压到内层。 Thereby, the strip is obtained in the longitudinal direction of the fibers. For long silk yarns and strands, twisted can form a tight structure that is not easily damaged by lateral force, and twisting can also form a variant wire and a fancy line. How many of the twisted and twisted direction not only affect the hand feel and appearance of the fabric, but also affect the intrinsic quality of the fabric. After the strip is twisted, the outer fibers produce a tilted helical roll back, the fiber torsional deformation, the gauze is tightly bored, and the structural form and mechanical physical properties of the fiber collective are changed. (As shown below) When there is an encirclement angle, the fiber has centripetal pressure on the yarn. The greater the encirclement angle, the greater the centripetal pressure. Due to the existence of centripetal pressure, the outer fiber is extruded to the inner layer, which increases the compactness of the yarn and the friction between the fibers, thus changing the structural form and physical and mechanical properties of the yarn, which is the essence of twisting yarn. Evaluation of yarn twist: Twist direction / twist / twist coefficient / twist shrinkage Twist direction: indicates the direction of twisting Twist direction refers to the inclined direction of the fiber in the single yarn or the single yarn in the strand after the yarn is twisted. It is divided into Z-twist and S-twist. After twisting, the twisting direction of yarn tends from the lower right corner to the upper left corner, and the inclined direction is consistent with the middle of "s", which is called s twisting or smooth twisting; The twist direction of yarn tends from the lower left corner to the upper right corner, and the tilt direction is consistent with the middle of "Z", which is called Z twist or backhand twist. Generally, Z-twist is used for single yarn and S-twist is used for ply yarn. The twist direction of the ply yarn is expressed according to the twist direction successively twisted. For example, the twist direction of single yarn with Z twist, initial twist with S twist and com...

面料的抗起球性的测试方法gydF4y2Ba
面料的抗起球性的测试方法gydF4y2Ba2022年1月07gydF4y2Ba

面料的抗起球性的测试方法gydF4y2Ba

理性和客观地评价织物的抗促进纺织品的开发和生产,积极促进作用。测试方法有很多面料的抗起球性,主要是模拟在日常生活和实际磨损和洗涤过程中,由于持续的摩擦,因此,织物表面的现象出现,因此测试方法设计。不同的目标市场有不同的测试。方法,如美国标准、欧洲标准、中国标准和客户的标准,通常基于出口选择适当的测试方法、产品类型或买家。常用的方法包括ICI抗起球箱法、马丁代尔起球方法,随机翻滚法,弹性垫片法、织物起毛起球圆轨迹法。应该指出的是,抗起球测试不仅限于上述测试。现在有很多客户要求评级直接通过织物洗后的发夹,和客户选择使用事后样品。各种抗起球测试方法对促进评估织物的抗起球性能。ICI抗起球箱法测试原理是三个平方样本大小的平方标本的大小从纬纬,每个缝成管状的形状,和前面的面孔上分别设置管聚氨酯水分。在软木盒子,测试室翻转3600转/小时的数量,和样品取出评级箱和织物面料相比,第一级是最坏的打算。第五是最好的,当两个相邻两个层次之间的结果是,我评估一半。 Common test standards include ISO 12945-1, GB / T 4802.3, IWS TM 152. This method mainly simulates the fabric itself with its own uninterrupted friction, and the fans of the fabric and other pharmaceutically fangs. This test method can be applied to all types of fabrics, but the main domestic market or export to the European market is using this method to test the pilling performance. AVENO related products: AG05 ICI Pilling and Snagging Tester Martindale Pilling method The test principle is to take three pairs of circular samples from the fabric, which are loaded in the upper and lower clamping devices. Under the slight pressure, the sample itself rubs each other, and rubbed by the Lissajous, after a certain number of revolutions, Samples are compared with the original or standard samples of the rating box, and the the worst level 1, level 5 is the best, and when the results are interposed between two adjacent two levels, it can be evaluated as half level. This method is applicable to all types of fabrics, but it is more applied to woven fabrics. It mainly simulates the pilling condition after frequent friction between fabrics. AVENO related products: AG04 Martindale Abrasion and Pilling Tester Random Tumble method The experimental principle is to take ...

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