FOERFARANDE Foer FRAMSTAELLNING AV LIVSMEDELS- OCH DRYCKESBEHAOLLARE, the apparatus Foer GENOMFOERANDE AV FOERFARANDET SAMT BEHAOLLARE FRAMSTAELLT according FOERFARANDET.

摘要

PCT No. PCT/GB85/00569 Sec. 371 Date Sep. 29, 1986 Sec. 102(e) Date Sep. 29, 1986 PCT Filed Dec. 11, 1985 PCT Pub. No. WO86/03474 PCT Pub. Date Jun. 19, 1986.A method of making a succession of food or beverage containers each comprising a vessel having a mouth surrounded by a rim presenting an upper surface of plastics material. The method comprises filling each vessel in turn and feeding over the vessel a continuous composite web of lidding material produced by forming spaced apart perforations, each comprising at least one through hole, in a continuous first web of diaphragm material having a plastics surface weldable to the vessel rim. The method also comprises forming spaced apart pull tabs in a continuous second web of peel strip material by folding each of a succession of portions of the second web against itself to form each pull tab and subsequently applying and peelably securing the second web which is narrower than the first web to the first web so as to obturate the perforations such that one pull tab is situated adjacent each perforation and remains secured to the second web only at a junction on its one end. Moreover, the method comprises cutting a lid from the web and securing the lid by an endless peripheral weld to the upper surface of the rim thereby closing the vessel.