Causes of brittle sealing and brittle breaking of bag making machine

(1) The heat seal temperature is too high;
(2) Excessive pressure;
(3) The heat sealing time is too long;
(4) The edge of the upper sealing device of the Bag Making Machine is too sharp or the PTFE covered is damaged;
(5) The silicone rubber at the bottom of the Bag making machine is excellent;
(6) In the process of compounding and curing, part of the adhesive infiltrates into the film. Due to the penetration of the 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 it also 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 upper heat sealing knife of the bag making machine to make the surface of the sealer smooth;
(3) It is well covered with polytetrafluoroethylene cloth;
(4) Selection of silicone rubber pad with suitable hardness