US Patent 11332283 Safe self-sealing bag

A safe self-sealing bag includes a double-sided bag body and a sealing strip. The sealing strip includes a first fastening strip and a second fastening strip. Two long side edges of the first fastening strip are hermetically attached to one of inner side faces of the bag body. A long side edge of the second fastening strip away from the bag opening is hermetically attached to the other inner side face of the bag body. A double-layer bag area is arranged on a bag surface provided with the first fastening strip, and the double-layer bag area is arranged on a side of the first fastening strip away from the bag opening. A side edge of the double-layer bag area away from the first fastening strip is provided with an opening, and the opening is located on the outer side layer of the double-layer bag area.