The can for the foodstuff or the can of one group and manner and the device where for those hygienic conservation is done

摘要

(57) Abstract Being the manner which puts the cover to the can, it includes the below-mentioned each step. Heating the thermoplasticity plastic material (9), you place the top (11) of the can group (10) which at least includes one can. Corresponding to closed curve on aforementioned top the film with mechanical means, it makes come in contact, it delimits closed space combining with aforementioned top. The air is pulled out from aforementioned closed space. Adhesion the film surface completely on aforementioned top. The aforementioned film part adhesion to the top of the can group completely is disconnected from the residual part of the film. It remains as maintained the form, it heats with the film the result of cooling contracting when, to the surface of aforementioned top adhesion and the aforementioned film to appropriate temperature.