Flexible container sealing

Flexible containers are bag type containers made from flexible materials such as paper, plastic film, and composite film. The sealing of such containers is often combined with bag making and filling to form a joint machine, and is rarely used independently. Due to different materials, the sealing device is also different.
① Paper bag sealing device: For paper materials, it is generally used to apply adhesive to the sealing area and then apply mechanical pressure for sealing.
② Plastic film bag and composite material film bag sealing device: Plastic bags or composite bags made of thermoplastic materials with good properties are generally heated directly at the sealing point and subjected to mechanical pressure to fuse the sealing.
③ The sealing device for mouth cup containers, such as common soybean milk cups, milk tea cups, etc., can be sealed by heating the cup edge and the membrane