Method for producing a laminate for making closing elements for containers or receptacles, laminate and container

A method for producing a laminate for closing elements for containers, said laminate comprising a welding layer adapted to be welded to a free edge of the container and a front layer adapted to define an external surface of said container, the method comprising:

• providing said welding layer and said front layer;
• coupling said welding layer to said front layer through an intermediate layer of removable self-adhesive spread at an adhesion portion of mutually coupled surfaces of said welding layer and of said front layer;
• making an incision in a portion of a thickness of the welding layer along an opening line adapted to define an access window of a closing element,
• wherein said incision divides the welding layer between a welding portion adapted to be welded to the container and an opening portion corresponding to said access window, with reference to an assembled configuration on the container, said incision being made so as to allow a detachment of said opening portion from said welding portion while said closing element is opened;
• spreading said intermediate layer of removable self-adhesive onto said adhesion portion leaving a portion free from removable self-adhesive,
• making a further incision in a portion of the thickness of the welding layer along a separation line, and arranging said welding portion adapted to be welded to the container between a portion of said opening line and said separation line,
• wherein said separation line extends between said portion free from removable self-adhesive and said adhesion portion.