Abstract: A method is for producing a coextruded and biaxially stretched composite film using a novel combination of stretching and relaxation steps. A corresponding composite film has little or no shrinkage.

Abstract: A method is for producing a coextruded and biaxially stretched composite film using a novel combination of stretching and relaxation steps. A corresponding composite film has little or no shrinkage.

Abstract: A method of manufacturing a coextruded and/or laminated and biaxially oriented composite film and a resulting multilayered film which has improved processability and/or improved recyclability. For this purpose, the method and multilayered film provides a novel combination of the density of various layer components of the composite film and certain manufacturing parameters such as the stretching factors, relaxation factors, relaxation temperatures, and residual stretching factors.

Abstract: The present patent application relates to a method of manufacturing a multilayered composite film comprising a step of co-extruding at least three layers (a), (b) and (c), of which the layer (a) forms an outward surface of the composite film; the layer (c) forms a surface of the composite film facing or coming in contact with a good to be packaged; and the layer (b) is disposed between the layer (a) and the layer (c). Further, the method includes a step of biaxial orientation of the composite film thus co-extruded. Therein, the layer (a) contains or consists of a thermoplastic resin. The layer (b) contains or consists of a polyvinylidene chloride (PVdC) resin. The layer (c) contains or consists of a resin, preferably sealable, in particular heat-sealable resin. Therein, any crosslinking of the composite film by means of radioactive radiation, in particular by means of beta, gamma, X-ray and/or electron irradiation, is omitted during the manufacturing of the composite film and/or thereafter.

Abstract: The present patent application relates to a method of manufacturing a multilayered composite film comprising a step of co-extruding at least three layers (a), (b) and (c), of which the layer (a) forms an outward surface of the composite film; the layer (c) forms a surface of the composite film facing or coming in contact with a good to be packaged; and the layer (b) is disposed between the layer (a) and the layer (c). Further, the method includes a step of biaxial orientation of the composite film thus co-extruded. Therein, the layer (a) contains or consists of a thermoplastic resin. The layer (b) contains or consists of a polyvinylidene chloride (PVdC) resin. The layer (c) contains or consists of a resin, preferably sealable, in particular heat-sealable resin. Therein, any crosslinking of the composite film by means of radioactive radiation, in particular by means of beta, gamma, X-ray and/or electron irradiation, is omitted during the manufacturing of the composite film and/or thereafter.

Abstract: The present patent application relates to a method of manufacturing a multilayered composite film comprising a step of co-extruding at least three layers (a), (b) and (c), of which the layer (a) forms an outward surface of the composite film; the layer (c) forms a surface of the composite film facing or coming in contact with a good to be packaged; and the layer (b) is disposed between the layer (a) and the layer (c). Further, the method includes a step of biaxial orientation of the composite film thus co-extruded. Therein, the layer (a) contains or consists of a thermoplastic resin. The layer (b) contains or consists of a polyvinylidene chloride (PVdC) resin. The layer (c) contains or consists of a resin, preferably sealable, in particular heat-sealable resin. Therein, any crosslinking of the composite film by means of radioactive radiation, in particular by means of beta, gamma, X-ray and/or electron irradiation, is omitted during the manufacturing of the composite film and/or thereafter.

Abstract: The present patent application relates to a method of manufacturing a multilayered composite film comprising a step of co-extruding at least three layers (a), (b) and (c), of which the layer (a) forms an outward surface of the composite film; the layer (c) forms a surface of the composite film facing or coming in contact with a good to be packaged; and the layer (b) is disposed between the layer (a) and the layer (c). Further, the method includes a step of biaxial orientation of the composite film thus co-extruded. Therein, the layer (a) contains or consists of a thermoplastic resin. The layer (b) contains or consists of a polyvinylidene chloride (PVdC) resin. The layer (c) contains or consists of a resin, preferably sealable, in particular heat-sealable resin. Therein, any crosslinking of the composite film by means of radioactive radiation, in particular by means of beta, gamma, X-ray and/or electron irradiation, is omitted during the manufacturing of the composite film and/or thereafter.

Abstract: The present invention relates to a single-layer or multilayer tubular food packaging film that can be smoked and air-dried, in particular a sausage casing, for smoked and/or air-dried sausage or meat goods, wherein the polymer-based food film is manufactured of a homogeneous molten plastic material in a (co-)extrusion film blow molding plant by means of (co-)extruded plastics supplied to a nozzle of a blow head and biaxially stretched in the triple-bubble process, the homogeneous molten plastic material being produced of a plastic blend of PET or a blend of various PETs and PVOHs and/or PEBAs. The present invention moreover relates to a method for the manufacture of the food film.

Abstract: The present invention for the first time proposes a multilayer sheet- or tube-type food casing or food film produced by the nozzle blast-drawing process and biaxially oriented by the triple-bubble process, which is fashioned as a food packaging having the form of shrink bags, sealable films, wrapping films or the like. This novel food casing or food film comprises at least nine layers of which an EVOH layer has the form of an oxygen barrier symmetrically embedded between two PA layers intended to impart strength and in turn symmetrically enclosed by two PO layers for the water vapor barrier, and wherein the external layer is formed by a highly temperature-resistant material such as PET which on top of its excellent optical properties also enables clearly higher speeds for further processing (cycle numbers) than were previously known.

Abstract: The present invention proposes a smokable planar or hose-type food casing or food casing film for food packagings, such as, e.g., sausage casings, shrink bags or the like on polymer basis, which is for the first time manufactured in the jet-blasting process from a homogeneous molten plastic material consisting of a plastic mixture consisting of at least of PA (polyamide) with PVAL (polyvinyl alcohol) and PEBAX (polyether block amide). The food casing or food casing film has a water vapor permeability that is at least 1 kg/m2 within 24 h. Its oxygen permeability at a film thickness of 30 ?m is less than 2.1 cm3/m2 within 24 h. Moreover the present invention for the first time proposes a method for manufacturing it.

Abstract: The present invention relates to a single-layer or multilayer tubular food packaging film that can be smoked and air-dried, in particular a sausage casing, for smoked and/or air-dried sausage or meat goods, wherein the polymer-based food film is manufactured of a homogeneous molten plastic material in a (co-)extrusion film blow molding plant by means of (co-)extruded plastics supplied to a nozzle of a blow head and biaxially stretched in the triple-bubble process, the homogeneous molten plastic material being produced of a plastic blend of PET or a blend of various PETs and PVOHs and/or PEBAs. The present invention moreover relates to a method for the manufacture of the food film.

Abstract: The present invention relates to a multilayer, tube-type food film, in particular sausage casing, wherein the food film is manufactured on a multilayer coextrusion film blow molding system by means of coextruded plastics supplied to a blowing head and stretched biaxially in the triple bubble process. The food film comprises at least six layers. The at least six layers of the food film are arranged from the outside to the inside, as follows: an outermost layer including a polyamide as a layer component, an innermost layer including a polyamide as a layer component, and an intermediately arranged succession of at least four intermediate layers being arranged from the outside to the inside, as follows: one layer includes an adhesion promoter as a layer component, another layer includes a polyolefin as a layer component, another layer includes a polyolefin as a layer component, and another layer includes an adhesion promoter as a layer component.

Abstract: The present invention relates to a single or multi layered food packaging on the basis of plastics wherein the layer or at least one of the layers comprises at least one metal with antimicrobial activity and wherein at least part of the metal with antimicrobial activity is present in finely divided metallic form and the remaining part is present in form of a salt.

Abstract: The present invention proposes a smokable planar or hose-type food casing or food casing film for food packagings, such as, e.g., sausage casings, shrink bags or the like on polymer basis, which is for the first time manufactured in the jet-blasting process from a homogeneous molten plastic material consisting of a plastic mixture consisting of at least of PA (polyamide) with PVAL (polyvinyl alcohol) and PEBAX (polyether block amide). The food casing or food casing film has a water vapor permeability that is at least 1 kg/m2 within 24 h. Its oxygen permeability at a film thickness of 30 ?m is less than 2.1 cm3/m2 within 24 h. Moreover the present invention for the first time proposes a method for manufacturing it.

Abstract: The present invention relates to a thermoforming apparatus (1) for producing shaped bodies (114) of plastic sheet (50), such as cups, containers, lids, secondary packagings for foodstuffs or the like, which comprises a forming station with a two-part forming tool (20). The two-part forming tool (20) comprises an upper tool table (28) adapted to be adjustably fixed and having an upper tool (30) with pre-stretch means (92) movably mounted therein, and a movable lower tool table (32) having a lower tool (34) with cavities (112). The movable lower tool table (32) is guided through the intermediary of guide means (42) and capable of being approached to the upper tool table (28) and moved away from it. The guide means (42) in accordance with the invention for the first time include a rotatable guide rail assembly (40) whereby the lower tool table (32) may be guided rectilinearly and rotated together with it.

Abstract: The present invention for the first time furnishes a multilayer planar or tubular food casing or film for food packagings such as, e.g., sausage casings, shrink bags or the like, which comprises a layered structure having at least five, preferably at least seven layers.

Abstract: The present invention relates to a thermoforming apparatus (1) for producing shaped bodies of plastic sheet (50), such as cups, containers, lids, secondary packagings for foodstuffs or the like, which comprises a forming station with a two-part forming tool (20). The two-part forming tool (20) comprises an upper tool table (28) adapted to be adjustably fixed and having an upper tool (30) with pre-stretch means (92) movably mounted therein, and a movable lower tool table (32) having a lower tool (34) with cavities. The movable lower tool table (32) is guided through the intermediary of guide means (42) and capable of being approached to the upper tool table (28) and moved away from it. In accordance with the invention, the upper tool table (28) for the first time includes associated drive means (26) for adjusting the upper tool table (28) in its position relative to the upper dead point of the lower tool table (32) in correspondence with the respective shaped body to be produced.