The main causes of the first failure are the following
(3) cold pressure rubber tire pressure is not appropriate
If the speed is too fast, the seal has not yet been heated to be driven by the traction roller to the cold at the cooling treatment, and naturally fail to meet the quality requirements.
The closure is also related to the speed of the sealing machine.
As long as the total thickness of the bag has increased, the heat sealing temperature must be increased accordingly.
Under normal circumstances, the OPP as the lining of the compound bag, when the total thickness of the bag when the 80 ~ 90μm, the heat sealing temperature to reach 170 ~ 180 ℃; PE as the lining of the composite bag bag thickness of 85 ~ 100μm
