The following illustration shows that the viscosity of the paste is too low and also reflects the speed ratio problem. Observing the viscous paste on the outer edge of the paste line with a very large amount of glue indicates that the viscosity of the paste is too low. Low-viscosity starches cause water-like pastes, and the paperboards bonded with the pastes have a lower adhesive strength, and the cardboard side pressure strength and carton compressive strength are correspondingly low.
