Translucent viscous liquid. Compared with high molecular weight PVP, under acidic conditions, YK-G01 can show similar viscosity values to high molecular weight PVP, but under high temperature and strong alkali conditions, high molecular weight PVP is easy to flocculate, while YK-G01 can show more than four times higher viscosity than acidic conditions to normal use, without fear of strong alkali. It has a wider scope of application.