The sealing is easy to open when using the three-side bag-making machine. What is the reason for this phenomenon?

1. Insufficient heat sealing temperature

Generally, when the thickness of the bag is 80~90 m, the heat sealing temperature shall reach 170°C~180°C, and the thickness of the composite bag made of PE shall be 85~100 m, and the temperature shall be controlled within 180~200°C

2. The heat sealing speed is too fast

Due to poor sealing, it may be because the speed of hot sealing is too fast, the sealing part cannot transfer heat to the cold pressing part for cooling treatment, so it cannot meet the quality requirements of hot sealing

3. There is a quality problem with the heat seal film

The ease of opening is also related to the quality of the heat seal film. If the composite corona treatment is uneven and happens to occur at the seal, the seal cannot be sealed

4. Cold pressing rubber wheel pressure is not suitable

Cold pressing rubber wheel has upper and lower two pressures, the pressure between them should be moderate, as long as the clamping spring to adjust the pressure

Ruian Zhoutai Packaging Machinery Co., LTD specializes in manufacturing three-sided bag sealing machine, more related products please pay attention to the official website www.raztjx.com