A manufacturing method to manufacture a closing tab (21), which is provided with a re-stick glue (22) in order to be glued, in a releasable manner, to an inner container (14), which houses a group (26) of smoking articles;
- the manufacturing method comprises the steps of:
- providing a first plastic layer (29), which is placed on an inner side of the closing tab (21) and is provided with the re-stick glue (22);
- previously making a through opening (33) in the first plastic layer (29);
- and
- subsequently coupling a paper layer (30) to the first plastic layer (29) and on an outer side of the first plastic layer (29) opposite an inner side of the first plastic layer (29) provided with the re-stick glue (22).