With the current circulation of commodities, people use more paper packaging, the necessity of paper bag machine is more obvious, it occupies a more important position in economic development and people's lives, but we will have some problems in use, especially when some novice operating equipment, encountered these problems is at a loss. Below we will introduce the common problems encountered in the work of paper bag machine equipment.
1, paper bag machine sealing product is not completely how to do?
In general, LDPE has moderate resistance to pollution heat sealing, EVA has good resistance to pollution heat sealing when the VA content is large, LDPE also has good resistance to pollution heat sealing, ionic resins and metallocene polymers have excellent resistance to pollution heat sealing.
2, bag making machine sealing brittle and brittle break how to do?
Let's first analyze the causes of this problem: ① may be too much pressure; ② The heat sealing time is too long; ③ During the compounding and curing process, a part of the adhesive penetrates into the inside of the film. (4) After the composite packaging bag is cooled and placed, the thermal sealing strength is increased, and there is also a tendency to become brittle.
If such a problem occurs, our solution: ① according to the heat sealing characteristics of the inner sealing layer material, choose the appropriate processing temperature, pressure and heat sealing time; ② Improve the surface state of the upper heat sealing knife, so that the surface of the sealer is smooth.
This is the problem we often encounter in daily production, of course, we need to pay more attention to the maintenance of equipment in peacetime, in order to reduce the problems in the production process.