How to solve the problem of cardboard
Huayin carton
Double-sided 300g with 440g double pit 180g compartment 180g, pit Aft 1.46 double A pit, at the time of production, the paper is attached, not a problem, pull the pull can not open, put it for more than ten hours, then gently touch Just open the glue, ask everyone to analyze, what is the reason?
Some fans answered with the heart:
Fan suggestions:
One: There is a problem with the glue itself. It is not recommended to suck the air, there is a fake stick, the amount of glue applied to the base paper is large, the bond is an illusion, and the glue does not penetrate into it;
Second: the glue does not penetrate well, change the glue formula, and use glue additives;
Third: From the perspective of the phenomenon, there are some problems in the initial determination of glue, but it also requires a series of investigations. After the investigation, it can be determined where the problem is.
Four: the boiler pressure is increased, the viscosity of the paste is controlled at 15 to 20 seconds;
Five: 440 US cattle, water absorption is only 60 to 80, 180 core water absorption is about 120, 300 domestically produced, water absorption is about 120, it is recommended to improve the glue and speed, refer to the improvement (probably data);
Six: high gram weight material, plus large distance, glue penetration is not enough, the surface paper volatilizes moisture to cause shrinkage, generally devolverizes after rolling up, the solution is to strengthen the penetration of glue at low speed, suitable paper spray, the cardboard does not dry quickly Exposure, hope can help you;
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