Buffering air bag with opening preset in air column turning region and method for manufacturing buffering air bag

Abstract

The invention relates to a buffer air bag with an opening preset in an air column turning region and a method for manufacturing the buffer air bag. The buffer air bag comprises an air column sheet, turning points, a turning midline, nodes and side heat sealing lines. The air column sheet is composed of a plurality of air columns which are formed by connecting of a plurality of vertical heat sealing lines and a plurality of transverse heat sealing lines with two outer films; the turning points are formed by heat sealing connection of outer films and arranged on the air columns or the vertical heat sealing lines; the turning midline is disposed on the air column sheet; the nodes are arranged on two sides of the turning midline at preset intervals; and the side heat sealing lines are in heat sealing connection with two sides of the air column sheet after turning and extend from one end of the air column sheet to the nodes, and a turning non-heat-sealing section is formed between the nodes and the turning midline. When the air column sheet is inflated, a bottom is formed among the turning points, the non-heat-sealing section of the turning region forms an opening with a polygonal side, and a support face is formed at the bottom of the opening. The bottom of the buffer air bag is flat and free of sharp angles, so that the buffer air bag can abut against the table surface stably.

Description

technical field [0001] The invention relates to the technical field of object packaging, in particular to a buffer air bag with a preset opening in an air column turning area and a manufacturing method thereof. Background technique [0002] At present, when packaging items, most of them use bubble paper or Styrofoam to wrap the packaging, but there are still problems such as poor cushioning effect or environmental pollution. In order to solve the defects of bubble paper and styrofoam, a gas packaging bag has been developed, which forms an air column in a sealed state through heat sealing, and is equipped with an inflation port for inflation. When the gas is filled into the air column through the inflation port After that, the gas packaging bag can be used in the inner packaging as a cushioning material. [0003] However, after the general gas packaging bag is inflated, the bending area at the bottom usually cannot show a flat shape, and the problem of protruding outward due...

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Problems solved by technology

[0003] However, after the general gas packaging bag is inflated, the bending area at the bottom usually cannot show a flat shape, and the problem of protruding outward due to the pressure of the gas is more common, which makes the bottom protrude after the general gas packaging bag is inflated. As for the inability to place the gas packaging bag on the table smoothly

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