| 摘要 |
<p>A CAN PACKAGING FOOD, COMPRISING A METAL CAN BODY (24) AND A DIAPHRAGM LID FORMED OF LIDDING MATERIAL WHICH COMPRISES A MULTILAYER STRUCTURE WITH AT LEAST AN ALUMINIUM LAYER OF FROM 6 TO 90 MICRONS THICKNESS AND A BOND LAYER FOR FIXING THE LID (16) DIRECTLY TO THE CAN BODY. ONE METHOD FOR FORMING THE CAN FORMS THE LIDDING MATERIAL BY USING AN OUTWARDLY EXTENDING CURL AT ONE END OF THE METAL CAN BODY (24) AS THE DRAW DIE. LIDDING MATERIAL WHICH IS CARRIED BY THE BODY MAKER PUNCH IS DRAWN AROUND THE CURL (20) OF THE CAN BODY DRAW DIE SO AS TO FORM THE LIDDING MATERIAL INTO A CUP SHAPE.</p> |
