Printing mechanism with vat dyestuffs is briefly introduced.Problems arising in potassium carbonate/Rongalite printing process are analyzed;and the corresponding measures are put forward.

• 简述还原染料的印花原理,以碳酸钾/雕白粉印花法为例,结合生产实际,就印浆的稳定性、防止渗色、防止过还原色变等问题提出解决方案。