We use HotAir technology to seal the side seam of the paper cup. This ensures the tightness of the seam and the absence of traces of adhesions.
Usually, on inexpensive glass making machines, the bottom of the cup is sealed using the 'rollers'. This technology cannot guarantee the tightness of the bottom of the paper cup. We use the technology of 'sliding stations'. Tightness is achieved by uniformly pressing the entire circumference of the bottom of the cup.
We perform quality control every hour. If we detect a defect, then all products produced since the last successful test are rejected. Thus, a possibility of delivering a faulty product to a customer is reduced to zero. To ensure the accuracy of this process, a date & time of production and a serial number are printed on the bottom of the cup.