In this type paper cup machine, we add a ultrasonic system to
sealing the paper cup body, the ultrasonic system resolve the
problem that double sides PE coated paper can not be sealing by
heater, the reason is that when a heater is adopted on the outside
suface the PE film will be burnt and become yellow or blackish and
make the cups shape in ugly.
Use JT Ultrasonic Paper Cup Machine, you can produce both double
sides PE coated paper cups and single side PE coated paper cups
only exchanging the raw material.