Abstract: The method for extruding and labeling a packaging tube comprises the following successive steps: a) forming a partially or totally tubular label from a film in a shaper; b) inserting the label into a calibration element; c) extruding a tubular body at the concave-face side of the label in an extrusion head; d) bringing the outer face of the extruded tubular body into contact with the concave face of the label. In the method, the label comprises at least one layer of which the melting temperature is at least 20° C. higher than the melting temperature of the extruded tubular body. A first pressure difference is formed in the extruded tube with an air jet.

Abstract: Multilayer skirt of a flexible tube, comprising an extruded main layer (9) and a mono- or multilayer film (10) at least partially surrounding the main layer. The tensile modulus of the main layer is less than 1200 N/mm2 and the tensile modulus of the film is greater than 3500 N/mm2.

Abstract: A process for continuous welding of a sheet of plastic material for manufacturing flexible packages, comprising a step of positioning the sheet relative to the welding device, putting ends of the sheet into contact, forming a weld by heating, pressing and cooling the ends of the sheet that are in contact, acquiring a primary temporal signal with a sensor, the primary temporal signal proportional to a thickness of the weld, transforming the primary temporal signal into a primary frequency signal and defining a low-frequency spectrum, a medium-frequency spectrum, and a high-frequency spectrum from the primary frequency signal, reconstructing a secondary low-frequency signal from the low-frequency spectrum, and determining the thickness of the weld based on the secondary low-frequency signal.

Abstract: The invention concerns an injection overmoulding device comprising at least one indexed rotary turret on which cooled moulds are installed, each mould comprising a plurality of cavities, and at least five stationary stations arranged around said turret, including at least a first station, a second station and a third station that are used, respectively, for carrying out the operations of positioning the inserts in the cavities of the mould, injecting plastic material into the cavities of the mould, and demoulding the at least partially cooled objects. The device comprises, for each mould, at least separate injection means. The invention also concerns a method implemented by the device.

Abstract: Rotary indexing device for manufacturing packaging tubes, comprising an indexing turntable (3) mounted in a rotary manner about an axis (9), and mandrels (4) and respective supports (14) secured to said turntable (3) and disposed radially with respect to said axis (9); radial actuating means (10, 11) for moving the mandrels (4) in a direction perpendicular to said axis (9) and linear guide means (13) for moving the mandrels (4) in a direction perpendicular to said axis (9); characterized in that the mandrels and respective supports (14), the radial actuating means (10, 11) and the linear guide means (13) are disposed in a direction parallel to said axis (9).

Abstract: A method for controlling the edges (7, 7?) of a foil strip guided in a shaping funnel of a device producing tubular bodies from the foil strip by an overlapping weld seam using a guide wedge, the strip being then welded. According to the invention, after welding, the method consists in using a linear infrared sensor for measuring and evaluating a temperature profile perpendicular to the overlapping weld seam. In case of variation relative to the specific real profile, a signal is automatically transmitted to rotate the shaping funnel with the guide wedge, the welding being produced by the high frequency (HF) and the temperature profile being measured directly after welding.

Abstract: A closing cap (1) for two-chamber containers (2), which can be connected to an outlet opening (3) of the container (2). The container (2) is divided by a separating element (4), which extends up to outlet opening (3), so that the contents of the first chamber (5) are supplied separately from the contents of the second chamber (6) to the outlet opening (3). According to the invention, a detent connection is provided for joining the closing cap (1) to the container (2), whereby a separating wall (12) divides the closing cap (1) into two separate areas. A separately closeable withdrawal opening (8, 8?) is arranged in each area, and the separating wall (12) interacts with the separating element (4) as to connect each of the chambers (5,6) of the container (2) only to the area of the closing cap (1), in which the assigned withdrawal opening (8, 8?) is located.