| 摘要 |
PCT No. PCT/EP96/03244 Sec. 371 Date Apr. 18, 1997 Sec. 102(e) Date Apr. 18, 1997 PCT Filed Jul. 23, 1996 PCT Pub. No. WO97/04896 PCT Pub. Date Feb. 13, 1997A method of producing a tinned food container has a container body 1 of a flat material, especially aluminum strip or tinplate strip which is deep-drawn and which, at least in the region of its planar end flange, is provided with a coating 2, especially a sealing coating, and has a cover 4 provided with a further coating, especially a further sealing coating, and is made of a foil material, especially aluminum foil, is sealed on to the edge flange under the influence of pressure and/or heat. To make the production method more economical, and for producing a container body with an intermediate sealing layer 3 additionally inserted during the sealing-on operation, first the blank for the container body 1 and intermediate sealing layer 3 is punched in one piece out of the flat material. Then the intermediate sealing layer 3 subsequently is separated from the container body 1 in the region of the edge flange. Then after the deep-drawn container body has been expanded towards its edge flange and/or after the dimensions of the intermediate layer have been reduced, the intermediate sealing layer 3 is placed on to the edge flange. |
