利用不同品质原棉的纺纱试验结果,采用主成分分析等方法,对棉纤维品质指标进行分析,结果表明:(1)原棉的纤维品质是决定纱线强力的主要因素,在不同的纺纱工艺下,虽然同一原棉的单纱强力不同,但和其它原棉相比,不同原棉之间的单纱强力分布趋势不受纺纱工艺的影响,即如果棉纤维综合品质高,则在任何工艺条件下,其单纱强力都高于其它原棉;(2)原棉的单纱强力的大小同时也与纺纱支数和纺纱工艺有关;(3)纤维长度、纤维强度、长度整齐度和麦克隆值是表示棉花纤维综合品质的关键指标。基于上述研究结果,建立了普梳和精梳工艺下的单纱强力模型:CSCO=(40-k1×C)×k2×Len-10/√Mic×Str×Unf,CSCA=CSOC×(1+CAWD),CAWD=W/66.67。。此模型为非线性模型,模型的机理性强、自变量少、模型形式简单直观,易于推广使用,具有较好的预测效果。
Based on the experiments of spinning yarn, and using the principal component analysis to the detecting data of cotton fiber qualities, the results showed that as follows: (1)The cotton fiber qualities are crucial factors to spinning strength. Though a kind of raw cotton strength change with technology, but the strength trends are the same under different technology comparing to other raw cottons. The higher the cotton fiber qualities are, the higher their spinning strengths are under any technology and counts; (2)The spinning strength has something to do with spinning counts and spinning technology ; (3) The pivotal indexes expressing the cotton fiber quality are fiber length, strength, microafis and uniformity . The model of single spinning strength of combed yarn and the model of singe spinning strength of carded yarn are established as:CSCO=(40-k1×C)×k2×Len-10/√Mic×Str×Unf,CSCA=CSOC×(1+CAWD),CAWD=W/66.67.The model have many advances, such as explieit mechanism, few independent variables, simple and intuitionist, good expected validity, easy application and dissemination and non liner model.