The hot air sealing process has certain advantages compared to the adhesive process:

1. The hot air sealing bag making process adopts hot air welding technology, which has high bonding strength and a welding coefficient of 90%, and is not affected by surface dust and other pollution of the bag body. Unlike the adhesive process, which requires cleanliness of the bonding surface to achieve bonding strength.

2. The hot air sealing bag making process can achieve rapid and reliable bonding by adjusting welding parameters such as heating temperature and wind speed for different coating formulations.

3. In the hot air sealing bag making process, the coating of composite plastic woven fabric serves as both an intermediate insulation layer and a bonding layer to strengthen the bottom strip and bag body, eliminating the need for expensive special polyurethane glue, making bag making costs lower. Composite bags can save at least 0.15 yuan in adhesive costs.

4. The hot air sealing bag making process is cleaner and more environmentally friendly. Due to avoiding the use of chemical adhesives such as EVA, the working environment is cleaner and does not produce odors that irritate human mucous membranes, nor does it cause secondary pollution to packaging materials, especially for packaging of food, medicine, and other materials related to human safety.

5. The hot air sealing bag making process has high bag making efficiency, fast adhesion, and no drying or curing process required by the adhesive process.

6. Compared to the side molding structure of the original adhesive process, a stiff heavy weight base fabric is required. The hot air sealing bag making process is formed and welded on the platform, which can adapt to the formation of lighter and thinner substrate bags to save raw material costs.