Method for reducing the microbiological loading of container products
AssigneeKocher-Plastik Maschinenbau GmbH
InventorsMartin Groh, Christoph Bohn, Michael Spallek
Life of this patent
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Abstract
A method reduces the microbiological loading of container products made at least partially of at least one plastic material. As part of a first production process, a plastic granulate (29) is fed to an extruder device (19), which melts the granulate (29). As part of a subsequent production process, the melted granulate is forwarded onto a blow-molding, filling and sealing machine for obtaining the respective container product. At least in parts of the first production process, the plastic material undergoes at least one of the following treatment steps: high-energy radiation and/or plasma treatment and/or a gas having a sterilizing effect.
Claims19
A method for reducing microbiologicals in container products made at least partially of plastic material, the method comprising the following steps:
- supplying plastic granulate in pouch-shaped packages;
- treating the plastic granulate with radiation producing a sterilizing effect to reduce the microbiologicals in the plastic granulate when the plastic granulate is in the pouch-shaped packages;
- opening the pouch-shaped packages after the treating;
- after opening the pouch-shaped packages, emptying the plastic granulate from the pouch-shaped packages into a screw conveyer of an extruder and then melting the plastic granulate in the extruder into melted plastic;
- and
- after the melting of the plastic granulate in the extruder, transferring the melted plastic from the extruder to a blow molding, filling and sealing production machine forming filled container products.
A method for reducing microbiologicals in container products made at least partially of plastic material, the method comprising the following steps:
- supplying pellets of plastic granulate
- onto a planar inclined feeding wall of a hopper or slide with the pellets of the plastic granulate being dispersed from one another in a planar manner on the inclined feeding wall;
- treating the pellets of the plastic granulate with a least one of a radiation, a plasma treatment, or a gas having a sterilizing effect to reduce the microbiologicals in the plastic granulate, the treating taking place when the pellets of the plastic granulate are disposed from one another on the inclined feeding wall;
- transferring the pellets of the plastic granulate from the inclined feeding wall, after the treating of the pellets of the plastic granulate, to an extruder and then melting the pellets of the plastic granulate in the extruder into melted plastic;
- and
- transferring the melted plastic from the extruder after the melting of the pellets to a blow molding, filling and sealing production machine forming filled container products.
Dependencies are inferred from the claim text.