Authentication of a bottle and of its contents

A method of manufacturing a bottle, the neck of which is closed by a stopper covered by a capsule, wherein in general it is composed of the following steps:

• a first step of placing an electronic authentication device around the neck of the bottle, where the electronic authentication device includes
• an electronic circuit with a flexible insulating support on which there is at least one conducting wire in the longitudinal direction without overlapping, forming tracks of said electronic circuit,
• said electronic circuit also including each of
• an electronic chip storing identification data containing at least one piece of information related to the content of said bottle,
• an antenna configured to cooperate with said chip for contactless transmission of at least one item of identification data to an external reader, for example when said antenna is within the coverage range of said reader, and
• a pierced stopper detector at least partially covering said neck when said device is positioned between said bottle and said capsule, and electrically connected to said electronic chip through the tracks of said circuit, said electronic chip being configured so as to determine that the stopper has been pierced or removed when the electrical connection with the pierced stopper detector is broken,
• the pierced stopper detector including a grid of at least one conducting wire forming the tracks of the grid, the tracks of the grid and the tracks of the circuit are being formed of said at least one conducting wire, and
• where:
• the spacing between tracks of the grid is equal to a separation distance approximately of the order of 50 μm to 300 μm,
• the width of each track of said grid is approximately of the order of 50 μm to 300 μm, and
• the thickness of each of said grid tracks is of the order of 10 μm to 50 μm;
• and
• a second step during which the capsule and said electronic device are crimped together around the neck to seal a closing of the bottle.

An assembly for authentication of a bottle for which the neck is closed off by a stopper covered with a capsule, said assembly comprising:

• at least one electronic authentication device positioned between said bottle and said capsule,
• said at least one electronic authentication device including
• an electronic circuit with a flexible insulating support on which there is at least one conducting wire in the longitudinal direction without overlapping, forming tracks of said electronic circuit,
• said electronic circuit also including each of
• an electronic chip storing identification data containing at least one piece of information related to the content of said bottle,
• an antenna configured to cooperate with said chip for contactless transmission of at least one item of identification data to an external reader, for example when said antenna is within the coverage range of said reader, and
• a pierced stopper detector at least partially covering said neck when said device is positioned between said bottle and said capsule, and electrically connected to said electronic chip through the tracks of said circuit, said electronic chip being configured so as to determine that the stopper has been pierced or removed when the electrical connection with the pierced stopper detector is broken,
• the pierced stopper detector including a grid of at least one conducting wire forming the tracks of the grid, the tracks of the grid and the tracks of the circuit are being formed of said at least one conducting wire, and
• where:
• the spacing between tracks of the grid is equal to a separation distance approximately of the order of 50 μm to 300 μm,
• the width of each track of said grid is approximately of the order of 50 μm to 300 μm, and
• the thickness of each of said grid tracks is of the order of 10 μm to 50 μm;
• and
• an external reader, external to the electronic authentication device, capable of reading the identification data stored in the electronic chip of said electronic authentication device when the antenna of said electronic authentication device is within the coverage range of said external reader.