Container formed of waxed cardboard - has heat sealed joint which is applied after assembly

摘要

The container is formed of wax coated cardboard, and is sealed by welding, the ends of the container are seamed on after the body has been formed. The joints are heat sealed after the container has been assembled. The sealing time is between one and twenty seconds and the sealing temperature between 140 and 230 deg.C with a sealing pressure of 1 to 20 Kg.