What is the production process of gas column bag?

It is a trend for resin film to be heat sealed, and the cushioning material used as inner packaging after inflation is called air cushioning body. Generally speaking, there are two types of air buffers. One is composed of independent air columns, and each air column has its own air inlet. When inflating, every air inlet must be inflated, which is time-consuming and uneconomical. In addition, in the new patent M255242 in Taiwan Province Province, China, a plurality of heat-resistant marks are sandwiched between the upper and lower valve membranes as air nozzles for inflating the air inlet, but unfortunately, the air inlet of each sealing body cannot be automatically opened by one-time inflation. The other type consists of one or two air inlets with attached air columns. The disadvantage is that after one gas column is damaged, all gas columns will be deflated together, as shown in the US patent. No.5,427,830. In addition, the inner membranes of these two kinds of air buffers are increased by air pressure, and the closed air well is not further sealed, so the air in the air column cannot be leaked for a long time after inflation, which makes the air buffer less practical.