Analysis on the causes of brittle sealing and brittle fracture of bag making machine

Reasons for brittle sealing and brittle fracture of Bag Making Machine:
(1) The heat sealing temperature is too high;
(2) The pressure is too high;
(3) The heat sealing time is too long;
(4) The edge of the upper sealer of the Bag making machine is too sharp or the polytetrafluoroethylene is damaged;
(5) The silicone rubber sealing at the bottom of bag making machine is very hard;
(6) In the process of compounding and curing, a part of adhesive penetrates into the film. Because of the penetration of adhesive, the toughness (impact resistance) of the substrate decreases and the brittleness increases;
(7) After cooling and placing, the heat sealing strength of the plastic composite packaging bag increases, and at the same time, it tends to become brittle.
Countermeasures:
(1) According to the heat sealing characteristics of the inner seal material, the appropriate processing temperature, pressure and heat sealing time are selected;
(2) Improve the surface state of the heat sealing knife on the upper part of the bag making machine to make the surface of the sealer smooth;
(3) It is well covered with polytetrafluoroethylene cloth;
(4) Choose suitable hardness of silicone rubber pad