Relationship among knitting cotton yarn quality standard,knitting fabric weave structure and raw cotton selection standard were discussed. Combining enterprises practice, quality control indexes of cotton knitting yarn were analyzed,the related key control points were put forward. According to different effect of knitting fabric weave structure on yarn quality sensitivity degree, grades of yam inner indexes standard were made rationally. Fine defects per 100 000 meters were added as one assessment indicator to ensure physical yarn quality reaching use demands. Different raw cotton selection standard was made according to knitting yarn grades to ensure yarn quality stable. It is considered that it is helpful to increase knitting yarn quality by making cotton yarn inner quality standard, the standard can provide reference standard for downstream knitting factory to purchase cotton yarn.%探讨针织用棉纱质量标准与针织物组织结构和原棉选用标准的关系.结合企业生产实践,对纯棉针织用纱的质量控制指标进行了分析,提出了几个控制要点:根据针织物不同组织结构对纱线质量的敏感程度不同,制定合理的纱线内控指标并进行分级；增加对十万米纱疵中细小纱疵数量的考核,以确保纱线实物质量满足用户要求；针对不同质量等级的针织用纱制定不同的原棉选用标准,以确保纱线质量稳定.认为,针织用棉纱质量内控标准的制定有利于提高针织纱质量,同时可为下游针织厂对针织用棉纱的采购提供一个参考标准.
展开▼
