Ripple cup is used as high-end paper cups for cafe and cold drink shops. It has the advantages of good temperature isolation, strong compression resistance and hardness, and are not easily deformed. And it is getting more and more popular in the market. What are the steps to make a ripple cup? What kind of machines are used?

Printing

The printing should be roll to roll flexo printing, as the printed paper roll will be stuck with the bottom paper on the corrugation machine. The printing ink always be the water based ink, and the printing plate is flexo plate.

Corrugation making

This is the most important step of the ripple cup manufacturing. The printed paper will be made with corrugation, and also be stuck onto the bottom paper. Usually the glue is corn or potato starch glue. The quality is up to the temperature, the amount of gluing, the machine running speed, all this controlled by the experienced machine operator. A corrugated paper roll will be finished producing and ready to be die cut to get ripple cup fan sheets.

Die Cutting

After corrugation making, the corrugated paper roll will be put onto the flatbed die cutting machine to get ripple outer fan sheets. Usually one die cutting machine can make 80-120 strokes per minute.

Gluing

The outer ripple fan sheets need to be glued so it could be stuck onto the white paper cup perfectly by the sleeve sticking machine. Usually the gluing is along one side of the outer ripple fan sheets.

Sticking

This is the final step of the whole process. With the sleeve sticking machine, the outer ripple fan sheets could be stuck onto the white paper cup by the ultrasonic. A sticking machine could finish 50-65 cups per minute.