Due to the effects of samples and testing conditions on fibre-bundle tensile behaviour, it is necessary to investigate the relationships between experimental factors and tensile properties for the fibre-bundle tensile...Due to the effects of samples and testing conditions on fibre-bundle tensile behaviour, it is necessary to investigate the relationships between experimental factors and tensile properties for the fibre-bundle tensile tester (TENSOR). The effects of bundle sample preparation, fibre bundle mass and fibre alignment have been tested. The experimental results indicated that (1) the low damage in combing and no free-end fibres in the cut bundle are most important for the sample preparation; (2) the reasonable bundle mass is 400700 tex, but the tensile properties measured should be modified with the bundle mass because a small amount of bundle mass causes the scatter results, while the larger is the bundle mass, the more difficult to comb fibres parallel and to clamp fibre evenly; and (3) the fibre irregular arrangement forms a slack bundle resulting in interaction between fibres, which will affect the reproducibility and accuracy of the tensile testing.展开更多
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(f...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.展开更多
文摘Due to the effects of samples and testing conditions on fibre-bundle tensile behaviour, it is necessary to investigate the relationships between experimental factors and tensile properties for the fibre-bundle tensile tester (TENSOR). The effects of bundle sample preparation, fibre bundle mass and fibre alignment have been tested. The experimental results indicated that (1) the low damage in combing and no free-end fibres in the cut bundle are most important for the sample preparation; (2) the reasonable bundle mass is 400700 tex, but the tensile properties measured should be modified with the bundle mass because a small amount of bundle mass causes the scatter results, while the larger is the bundle mass, the more difficult to comb fibres parallel and to clamp fibre evenly; and (3) the fibre irregular arrangement forms a slack bundle resulting in interaction between fibres, which will affect the reproducibility and accuracy of the tensile testing.
基金China/CSIRO Project on Predicting Yarn Quality from Cotton Fineness and Maturity Measurements(No. 400012)
文摘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.
