To improve evenness level of over mature raw cotton and reduce yarn neps,spinning test was done according to big fineness,worse regularity.

• 为了改善过成熟原棉的成纱条干水平,减少成纱棉结,针对过成熟原棉细度粗、纤维整齐度差的特点,进行了纺纱工艺试验。