An integrated cotton fiber quality index(ICFQI) model with cotton fiber qualities which can directly express cotton fiber integrated quality and spinning yarn quality was studied.The fiber length,strength,Micronaire(fiber fineness and fiber maturity),uniformity of fiber length,and short fiber content are the pivotal indexes expressing ICFQI.All of the results above are the basic knowledge to build up the models of ICFQI.According to spinning consistency index(SCI),spinning strength and spinning yarn integrated quality,ICFQI was the best choice.As the methods of ICFQI had quite a lot of advantages like explicit mechanism,few independent variables.The integrated fiber quality index had a significant positive correlation with yarn strength and spinning consistency,significant negative correlation with yarn evenness and yarn thin places.In additional,the model of the relationship between ICFQI and SCI was established as:SCI= 0.2356·ICFQI+56.153.It was concluded that ICFQI value was the shared reference index for the testing of fiber inspection agency and the selection and distribution of raw cotton bales by textile mills.
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