Causes of Yarn Neps and Measures for Their Prevention
Yarn neps are common, harmful fiber defects in cotton spinning that compromise yarn appearance, fabric smoothness and overall textile quality. Reducing neps requires a clear understanding of their formation throughout the spinning process. This article classifies neps into raw material-induced and process-induced types, analyzes core formation causes in ginning, opening, carding, conveying and drafting, and offers practical guidance for spinning mills to optimize processes and stabilize yarn quality.