Abstract: Process for packaging sticky substances in the molten state, in which the sticky substance is cast in a tray-mold lined be-forehand with a film of non-sticky plastic material and compatible in the fluid state with the sticky substance, including, among other, the phase of lining the internal walls of the tray-molds with a first thin and easily formable film of the non-sticky plastic material, causing it to perfectly adhere to the walls of the mold by connecting the lower external part of the molds connection to a vacuum source, in which the degree of vacuum during the opening transient of the connection is modulated.

Abstract: Process for packaging sticky substances in the molten state, in which the sticky substance is cast in a tray-mould lined be-forehand with a film of non-sticky plastic material and compatible in the fluid state with the sticky substance, including, among other, the phase of lining the internal walls of the tray-moulds with a first thin and easily formable film of the non-sticky plastic material, causing it to perfectly adhere to the walls of the mould by connecting the lower external part of the moulds connection to a vacuum source, in which the degree of vacuum during the opening transient of the connection is modulated.

Abstract: Process and plant for packaging in the fluid state substances which are sticky or soft at room or handling temperature, wherein the substance (A) is cast in a mould (1) provided with holes and lined, by means of vacuum thermoforming, with a thin film of plastic material (4) which is non-sticky at the room temperature and compatible, in the fluid state, with the sticky or soft substance (stage I). The free-surface of this substance thus formed is cooled (stage II) and finally covered with a non-sticky material (25) which is then heat-sealed with the film (stage III). The sealed materials are finally cut in the region of the sealed joint (stage IV).