Bag type bag

Patent name Airbag packaging bag Patent applicant Liu Kubai Principal applicant Address 200065 Shanghai Zhidan Road 155, Luxembourg Pavilion 4A Inventor Liu Gubai Application (Patent) No. 200520039102.0 Date of application 2005.01.19 Certification Date Approval Notice No. 2767369 Validation announcement date 2006.03 .29 Specification CD-ROM D0613-2 Main classification number B65D81/03 (2006.01) I Classification number B65D81/03 (2006.01) I Sub-item Original application number PRIORITY OBJECT SUMMARY This utility model relates to an airbag-type packaging bag made of plastic. The layer constitutes a bag body, and the plastic layer has four layers, which are an upper layer, an inner layer, an inner second layer, and a lower layer. One side of the four layers is an entrance, and the other periphery is pressed and joined by a hot press belt. The inner layer and the inner layer are One end is provided with an end hot pressing belt, and a side hot pressing belt is respectively arranged on the inner layer and the two sides of the inner second layer that are perpendicular to the end hot pressing belt, and the inner layer and the inner layer are Between the partial hot pressing belt and one of the four sides of the hot pressing belt, there is provided an air hole that is closed on the inner layer and the inner second layer, and the inner layer and the inner second layer are closed. The air hole and the upper layer are between The lower level is connected. The airbag-type packaging bag of the present invention combines vacuum and inflation functions to vacuum the inner bag, inflate the outer bag, tightly connect the inner bag and the outer bag, and uses the outer bag to inflate to generate air pressure, so that the inner bag is naturally evacuated. This stabilizes the contents of the inner bag. Sovereignty Item 1. An airbag-type packaging bag, which is composed of a plastic layer and is characterized in that the plastic layer has four layers, namely an upper layer, an inner layer, an inner second layer and a lower layer. One side of the four layers is In addition, the rest of the periphery is pressed and joined by a hot pressing belt, and an end hot pressing belt is provided at one end of the inner layer and the inner second layer, and the inner layer and the inner second layer are perpendicular to the end portion of the hot pressing belt. Sides are respectively provided with side hot pressing belts, between the inner hot stamping belt at the end of the inner layer and the inner second layer and one edge hot pressing belt at the four layers, and are provided on the inner layer and the inner layer. The inner layer and the inner layer are closed pores, and the pores communicate with the upper layer and the lower layer.