What are the reasons for the breakage of plastic bags? What is the reason that the material is BOPPCPP and the heat sealing edge is damaged?
When sealing edge, the temperature is too high, the plastic is crisp
When the edge is hot, the edge sealing machine or manual time is too long, because the temperature is uncontrollable, but the current and time are controllable
First, the heat seal knife too ruthless, too high temperature, burned CPPSecond, CPP tensile rate is not enough, so that in the event of external shocks, can not play an effective buffer effect.Third, BOPP and CPP structure itself can not contain many things, you pack too much, BOPP/CPP mechanical strength itself can not afford.Fourth, also need to see BOPP and CPP film thickness, because they are all polypropylene film, but the tensile strength is not the same, there will be problems.
