The problems existed in discharge printing of knitted undershirt cloth were analyzed, such as edge roll, dark color, and color difference prevention and measures are also presented in this paper.

• 针织汗布在拔染印花工艺中极易出现卷边、色泽萎暗、印花颜色不一致、色差等印制问题。文中分析了色泽萎暗及产生色差的原因,并提出了预防措施。