Why Does The Air Column Bag Not Leak? What Is The Principle?

air column bags, also known as buffer air column bags, inflatable bags, bubble column bags, or cylindrical inflatable bags, are a new type of packaging material that uses natural air filling in the 21st century. Air column bags are mainly used to protect items during transportation, preventing them from being damaged by bumps. Many users are curious about why there is no air leakage when inflating the airbag when it is full? This article will explain the principle of why gas column bags do not leak

The reason why the column bag does not leak after inflation is because the inflation nozzle of the inflation bag is a specially designed one-way check valve, which can prevent gas leakage after inflation is completed. A one-way check valve refers to a valve that automatically opens and closes the valve disc based on the flow of the medium itself, used to prevent medium backflow. It is also known as a check valve, one-way valve, backflow valve, and backpressure valve. A one-way valve is an automatic valve that mainly functions to prevent medium backflow, prevent pump and drive motor reversal, and prevent the discharge of container medium. A one-way valve can also be used on the pipeline to provide supply to auxiliary systems whose pressure may rise above the system pressure. The one-way valve can be mainly divided into a swing type one-way valve (rotating according to the center of gravity) and a lifting type one-way valve (moving along the axis). The function of a one-way check valve is to only allow the medium to flow in one direction and prevent flow in the opposite direction. Usually, this type of valve operates automatically, and under the pressure of fluid flowing in one direction, the valve disc opens; When the fluid flows in the opposite direction, the valve seat is cut off by the fluid pressure and the self weight of the valve disc, which acts on the valve seat.

It is worth mentioning that the prerequisite for inflation of the airbag to be leak free is to use the correct method for inflation

Inflation method:

5. After the gas column bag is inflated and formed, the product can be packed into the bag to complete the packaging.

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