| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a gas packaging bag for holding an article closely, which is capable of providing good shock absorbing protection to the article, prevented from being pierced by the article, and suppressing manufacturing costs, and to provide its manufacturing method. <P>SOLUTION: A first outside film 2a and a second film 2b are superposed on each other, the first outside film of them includes a first side section, a second side section, and a folded side 23 located between the first side section and the second side section, the first outside film is folded back along the folded side, a holding space 10 is formed between the first outside films, and then one or more ventilation holes 6 which penetrate the first outside film are formed and the peripheral section of the ventilation hole is affixed by heat welding, and furthermore, the second outside film is folded back and superposed on the outside of the first outside film, and the first outside film is affixed to the second outside film by heat welding, a heat seal side 5 is formed at the folded side section, a first gas chamber 11 is formed between the first side section and the heat seal side by affixing the first outside film with the second outside film by heat welding, and a second gas chamber 12 is formed between the second side section and the heat seal side. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
