| 摘要 |
<p>A process for producing a container made of a stiff outer section and an easily deformable inner bag made of thermoplastics with no welds, comprises coextruding a blank, placing it between the opened sections of a mould, closing the mould, and blow moulding. The container opening is sealed, and a wall opening is formed using a drill or needle. A pressurising medium is then supplied to the intermediate space between the outer container and the inner bag. The drill or needle movement is stopped once a threshold pressure is achieved in the bag, and the pressurising medium is stopped. After pressure release in the intermediate chamber, a pressurising medium is supplied to the inner bag.</p> |
