| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method which can be performed by a simple apparatus, and in addition, by which a package with a stable internal pressure can be obtained relating to the method for enclosing a gas of a pressure at the atmospheric pressure or higher in a packaging bag using a flexible packaging material together with a content. <P>SOLUTION: The method for enclosing the gas in the packaging bag is constituted of a following series of steps. In the first step 1, a base material layer having barrier property and a laminated body having at least a sealant layer are opposed with each other, and the packaging bag is formed by heat-sealing the peripheral edges. In the second step 2, the content is filled from the upper opening section of the packaging bag. In the third step 3, an air nozzle is inserted from the upper opening section, and the packaging bag is placed under an air-tight state by clamping the upper opening section together with the air nozzle by a pinch equipped with a resilient body. In the fourth step 4, the pressurized gas is enclosed from the air nozzle. In the fifth step 5, the air nozzle is removed while the opening section is being clamped by the pinch, and then, the lower section of the pinch is clamped by a seal bar. In the sixth step 6, the upper opening section is heat-sealed by heating the seal bar, then, after cooling the seal bar, the pinch and the seal bar are released. <P>COPYRIGHT: (C)2012,JPO&INPIT |
