乌斯特统计值的比较分析

Comparison Analyses of Uster Statistic

摘录了乌斯特 97统计值中的条干CV %、断裂强度和断裂强度CV %、常发性纱疵 (细节、粗节和棉结 )几项主要成纱质量指标 ,通过图形与乌斯特 89统计值、乌斯特 82统计值进行了比较分析 ,指出 :近几年来世界棉纱的质量在不断提高 ,而较粗号、较低水平的成纱质量进步幅度较大 ,普梳纱和转杯纺纱的质量全面进步。

This paper excerpted three main yarn quality targets in '97 Uster statistic,i.e,yarn evenness coefficient of variability,breaking tenacity & breaking tenacity coefficient of variability and common yarn defects(nip,slub and nep),and made an analysis on constrasting them with '89 Uster statistic and '82 Uster statistic.The writer pointed out that,the quality of cotton yarn is increasing all the world,and the quality of the yarn with coarse\|gauge and lower standard was increased by a wide margin,the quality of common yarn and OE yarn was increased comprehensively.