The labyrinth exhaust bag generally includes a front bag surface, a rear bag surface and a side bag surface.
the rear bag surface are connected at the bottom, and the side bag surfaces are respectively arranged between the two side edges of the front bag surface and the rear bag surface.An opening is formed between the tops of the front bag surface, the rear bag surface and the side bag surface, and an exhaust portion is connected between the front bag surface and one side bag surface.By providing a sealing belt, a ventilation seam and an exhaust hole, the powdered material falls into the bottom position of the containing cavity under the action of gravity,and the air can be discharged in any direction where there are gaps and holes, while the powdered material needs to enter the cavity along the sealing belt in the direction of the ventilation seam, and then be discharged from the exhaust hole in the middle of the cavity.
Practical application
Labyrinth exhaust bags are widely used in the field of powder packaging technology, especially for the packaging of powdered materials.Its design allows the powdered materials to smoothly exhaust the internal air during the packaging process, preventing the formation of vacuum inside the package, thereby avoiding deformation or rupture of the package.In addition, the structural design of the labyrinth exhaust bag can also effectively prevent external moisture from entering the package, ensuring the quality and stability of the powdered materials.
