纤维梳理性能的内涵与评价

为实现对不同纤维梳理性能的客观评价，从纤维状态出发阐述梳理性能内涵，从材料物理性能入手探究梳理性能与纤维特性的关联。提出梳理性能是纤维分离维、集束维、伸直维和梳断维 4 个维度的有机组合；借助仪器测试获取 20 种纤维的物理性能参数并进行主成分分析，提取了与 4 个维度相对应的主因子，并验证了其可靠性。结果表明：分离维、梳断维、伸直维与梳理性呈正相关，集束维与梳理性呈负相关；以主因子累积贡献率为权重，建立梳理性指数的计算模型，实现对不同纤维梳理性能的水平评价，梳理性指数越大越有利于梳理；提出纤维梳理性分类模型，建立从易到难 5 种类型分类方案，该方案与梳理实践吻合良好。

Connotation and evaluation of fiber carding properties

In order to realize the objective evaluationfor carding properties of different fibers,its carding was theoretically discussed from the analysis offiber states in its assenbly, and the relationship with the fiber properties was statistically explored from material characteristics. It is providedthat carding performance is an organic combination of the four dimensions, namely, separation, cluster, straightening and card-to fail of fiber. The property data of 20 kinds of fibers were obtained by instrument tests.These main factors were extracted by principal component analysis, and the four-dimension theory was confirmed. The results indicate that the separation factor, card-to-fail factor and straightening factor were positively correlated with carding performance, while the cluster factor was negatively related to carding performance. The computational model of the carding index was established according to the main factor contrebution ratio to realize the level evaluation on carding performance of different fibers. The larger the carding index, the better the carding performance. Moreover, the clasification model of carding performance was proposed, which was in good agreement with carding practice. According to carding difficulty, fibers were divided into five kinds of carding performance from easy to difficult.