生条中短纤维含量与成纱指标的相关性分析

为探索生条中短纤维含量对纱线指标的影响，更好地通过短纤维含量指标对纱线指标进行预测，通过在不同锡林刺辊速度条件下对棉纤维进行梳理，并采用相同的后序工艺进行纺纱，将生产的生条取样，借助USTERAFIS 测试仪检测纤维的长度分布，分别统计出10、12、14 和16 mm 以下4 种短纤维的含量，同时借助条干、毛羽和强力测试仪分别检测各种实验条件下生产纱线的条干、强力和毛羽等指标，最后使用SPSS 统计软件计算出4 种短纤维含量指标与成纱各指标之间的相关系数。结果表明：当梳理工艺变化时，生条中短纤维含量指标与条干部分指标有较高的正相关性，与成纱强力指标不存在显著的相关性，与毛羽指标甚至是负相关。

Correlation analysis on relationship between short fiber content of card sliver and yarn parameters

To explore the influence of short fiber content (SFC) in card sliver on yarn parameters and make a prediction, the card sliver and yarn were produced under different speeds of cylinder and takein. The card sliver was tested with USTER AFIS and less than 10, 12, 14 and 16 mm SFC were calculated, respectively, according to fiber length distribution of card sliver. The evenness, hairiness and strength of yarn were tested by unevenness tester, hairiness tester and strength tester, respectively. The correlation coefficients between 4 SFC parameters and yarn parameters with SPSS were calculated. The results show that a high correlation exists between SFC and evenness parameters, but a little correlation exists between SFC and strength parameters, even negative correlation in hairiness parameters, so it is predicted that the yarn quality is necessary according to SFC of card sliver based on actual carding technology.