Packaging bags

Abstract

The packaging bag, which is the article to which the design of this application pertains, is a heavy-duty bag mainly for containing agricultural materials such as animal feed. It is rectangular in shape and has a main guide line welded along the upper edge, and a pair of diagonal sub-guide lines welded from both lower side edges to the vicinity of the main guide line. A cross-shaped pin is formed between the main guide line and each sub-guide line, closer to the main guide line, and a notch is formed at its horizontal side end. The pin functions as a vent to release gas and moisture when sealed. On the other hand, the notch is used as the starting point for opening, and when opening, the tearing is smoothly guided from here to the main guide line via the sub-guide lines. In other words, this packaging bag can be sealed with a vacuum inside the bag using the pin, and can be easily opened using the notch and each guide line.

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