在纺制高支纱时，长绒棉的物理性能决定着成纱质量，在一定比例范围内，长绒棉含量不同，成纱质量也会有显著差异。尤其是对成纱条干CV、单纱断裂强度、毛羽、成纱纱疵（细节、粗节、棉结）影响较明显。

When spinning high count yarn, the physical properties of long staple cotton determine the quality of the yarn. Within a certain proportion range, the quality of the yarn will also vary significantly depending on the content of long staple cotton. Especially, it has a significant impact on the yarn evenness CV, single yarn breaking strength, hairiness, and yarn defects (details, coarse knots, and neps).

在纺纱过程中，随着长绒棉含量的增加而逐渐降低。这是因为随着长绒棉含量的增加，纤维平均号数降低，纱条截面中纤维根数较多，对改善条干具有一定的作用。在细绒棉中掺入一定数量的长绒棉，可以有效的提高成纱条干均匀性，以更好的满足用户的要求。

During the spinning process, it gradually decreases with the increase of long staple cotton content. This is because as the content of long staple cotton increases, the average number of fibers decreases, and there are more fibers in the cross-section of the yarn, which has a certain effect on improving the evenness. Adding a certain amount of long staple cotton to fine velvet cotton can effectively improve the evenness of the yarn and better meet the requirements of users.

断裂强度：由于成纱能力与纤维细度和长度均有一定的关系，纤维长度长、纤维利用率高，纱条中散乱纤维和短纤维较少，纤维细度细，纱条断面内的纤维根数多，抱合力增加，因而当在细绒棉配棉中混入长度较长、细度较细的长绒棉后，成纱断裂强度显著增加。长绒棉含量单加到25%、由75%增加到85%时，断裂强度增加的幅度较大，长绒棉含量每增加10个百分点，断裂强度增幅在12%以上；在其他比例段，长绒棉含量每增加10个百分点，断裂强度增加幅度在3%-6%左右。

Breaking strength: Due to the relationship between yarn forming ability and fiber fineness and length, the fiber length is long and the fiber utilization rate is high. There are fewer scattered fibers and short fibers in the yarn, and the fiber fineness is fine. There are more fibers in the cross-section of the yarn, and the cohesion is increased. Therefore, when long and fine staple cotton is mixed with fine cotton, the breaking strength of the yarn significantly increases. When the content of long staple cotton is increased to 25% or from 75% to 85%, the increase in breaking strength is significant. For every 10 percentage points increase in long staple cotton content, the increase in breaking strength is over 12%; In other proportion ranges, for every 10 percentage points increase in the content of long staple cotton, the increase in breaking strength is around 3% -6%.

毛羽：是指伸出纱线体表面的纤维。毛羽性状是纱线的基本结构特征之一。在多数情况下，纱线毛羽不仅影响织物的透气、抗起毛起球、外观、织纹清晰和表面光滑等。一般纤维愈整齐，短纤维含量愈低，成纱表面越光洁，毛羽也会相应减少。这就类似于在女生在编辫子的时候，长发辫子总是比短发辫子更为整齐、不毛躁。

Hairiness: refers to the fibers that protrude from the surface of the yarn body. Hairiness is one of the basic structural characteristics of yarn. In most cases, yarn fuzziness not only affects the breathability, anti pilling, appearance, clear texture, and smooth surface of the fabric. The more regular the fibers are, the lower the content of short fibers, the smoother the surface of the yarn, and the corresponding reduction in hairiness. This is similar to when girls braid their hair, long hair braids are always more neat and less frizzy than short hair braids.

成纱纱疵：排除纺纱过程中机械、环境、操作、工艺等因素对纱疵的影响。一般来看，随着长绒棉含绒量的增加，纱疵是逐渐减少的，这是由于随着长绒棉含量的增加，纤维平均长度变长、平均细度变细，纱线中纤维利用率高，抱合力增加，纺纱过程中浮游纤维较少，产生纱疵的机会就减少。

Finished yarn defects: eliminate the influence of mechanical, environmental, operational, and technological factors on yarn defects during the spinning process. Generally speaking, as the fiber content of long staple cotton increases, yarn defects gradually decrease. This is because with the increase of long staple cotton content, the average fiber length becomes longer, the average fineness becomes finer, the fiber utilization rate in the yarn is higher, the cohesion increases, and there are fewer floating fibers during the spinning process, reducing the chance of yarn defects.

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