Abstract: According to the method: an IML label produced from a film of between 30 and 50 ?m thick is obtained; on at least one face of the film, an area is printed with an ink or varnish; in the cavity of a mold, the film is arranged so that the printed area is not in contact with the mold; in the cavity equipped with the film, plastics material is injected simultaneously with an expansion agent, so that the printed area does not adhere to the melted plastics material. The expansion agent is trapped between the label and the plastics material, creating a raised effect in the printed area.