A container wrapper partially available in closed landfill by folding, in pointed fins of the material of its front ends, essentially characterized by the fact that one of the said fins is fixed to the rest of the wrapper when closing it only by the tip of the same, so that it can be cut off at a certain distance from its vertex to open the wrapper so that it is formed, as the rest of the headwall is not unfolded, a kind of hopper whose orifice has been produced by the shearing of the folded material, and whose cavity results from the deployment of the material itself that determines the severed tip. (Machine-translation by Google Translate, not legally binding)
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