After the plastic packaging bag is ready, the product must be sealed before it can be put into the market, so what should be paid attention to when sealing, how to seal the seal beautifully? No matter how good the bag is, a poor seal can affect the appearance of the bag. So what do you need to pay attention to in sealed plastic packaging bags?

1. The sealing method of single-layer plastic packaging bags.
Generally, plastic packaging bags are single-layered, so the bags are thin and can be sealed at low temperatures. After the bag burns out, the temperature will be very high. Therefore, during the sealing process, it is necessary to repeatedly test the temperature until the temperature does not burn. The appearance of the bag is flat. This temperature is a suitable temperature. Such bags are usually sealed with feet.
2. The sealing method of the multi-layer composite packaging bag.
Because the multi-layer composite plastic bag is a combination of multi-layer materials, the bag is very thick, and the PET is resistant to high temperature, so it can withstand high temperature, and the high temperature of 200 degrees can generally seal the bag. Batch sealing experiments to prevent unnecessary trouble during use.
The sealing of plastic bags is important for temperature control. The temperature controlled seal is smooth and beautiful and will not be damaged. Therefore, it is necessary to test the appropriate temperature when sealing. Don't rush into mass production to avoid waste.