The present invention relates to a colmating improvement device for cork stoppers, comprising at least three cylindrical shaped rotating means, able to receive a cork stopper entering in a rotational movement with a slight pressure, which stopper is inserted through an insertion tubular device assisted by two pneumatic cylinders. The device further comprises two openings, an inlet opening and an outlet opening, two electric motors/reduction gears, a worm, a chain and a tank that can contain a substance consisting of a binder and cork dust with a solid content between 50 and 100%.

The present invention relates to a colmating improvement device for cork stoppers, comprising at least three cylindrical shaped rotating means, able to receive a cork stopper entering in a rotational movement with a slight pressure, which stopper is inserted through an insertion tubular device assisted by two pneumatic cylinders. The device further comprises two openings, an inlet opening and an outlet opening, two electric motors/reduction gears, a worm, a chain and a tank that can contain a substance consisting of a binder and cork dust with a solid content between 50 and 100%.

A non-destructive method for analyzing a cork stopper for the presence of 2,4,6-trichloroanisole. The stopper is introduced into a hermetically closed container. The container containing the stopper is heated under conditions vaporizing any 2,4,6-trichloroanisole present in the stopper. A gaseous sample of the atmosphere surrounding the stopper in the container is collected and analyzed for the presence of 2,4,6-trichloroanisole. This method allows the selection, in a batch of cork stoppers, of the stoppers that are substantially free of 2,4,6-trichloroanisole, in a non-destructive manner.