Method for making contactless cards by lamination and contactless card obtained by said method

The invention concerns a method for producing a portable object having a card format and comprising:-an object body including a plastic support sheet (12), a plastic incorporation sheet (18), and a first (19) and second (20) external covering sheet; an antenna (11) provided with two antenna terminals (13); and an integrated circuit chip (14) incorporated in an incorporation sheet (18) and electrically connected to the antenna. The method of the invention is characterised in that it comprises stages according to which: the support sheet (12) on which the chip (14) has been mounted with the incorporation sheet (18) so as to obtain a first rolled unit; and in a subsequent stage the first rolled unit is covered with the first (19) and second (20) external covering sheets. The invention can be applied in particular to the production of contactless cards by means of hot rolling.