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Sterilization apparatus, packaging machine having sterilization apparatus for producing sealed packages and method for sterilizing

A sterilizing device and packaging machine technology, applied in packaging, packaging protection, packaging sterilization, etc., can solve the problem of interference with the sensor of the sterilizing device

Active Publication Date: 2020-10-02
TETRA LAVAL HLDG & FINANCE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] A disadvantage of this sterilizing device is that, in the case where the web of packaging material comprises a conductive layer, usually an aluminum foil serving as an oxygen barrier, the application of the electron beam leads to the formation of unwanted charges on the conductive layer (which also can diffuse onto the outer layer of the web of packaging material), for example, the formation of charges can cause interference with the sensor of the sterilization device configured to detect and / or determine the sterilization efficiency of the radiation device

Method used

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  • Sterilization apparatus, packaging machine having sterilization apparatus for producing sealed packages and method for sterilizing
  • Sterilization apparatus, packaging machine having sterilization apparatus for producing sealed packages and method for sterilizing
  • Sterilization apparatus, packaging machine having sterilization apparatus for producing sealed packages and method for sterilizing

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Embodiment Construction

[0027] Reference 1 generally designates a packaging machine for producing pourable products, in particular pourable food products (such as pasteurized milk, fruit juices, wine, tomato paste, etc.) from tubes 3 of webs 4 of packaging material. ) in sealed packaging 2. In particular, in use, the tube 3 extends along a longitudinal axis, in particular with a vertically oriented longitudinal axis.

[0028] The web 4 of packaging material has a multilayer structure (not shown) and comprises at least one electrically conductive layer, in particular an electrically conductive gas and light barrier layer, even more especially an aluminum layer.

[0029] Preferably, the coil 4 further comprises:

[0030] - at least one layer of fibrous material, preferably paper;

[0031] - at least a first layer of heat-sealable plastic material, such as a layer of polyethylene, superimposed on one face of the layer of fibrous material, in particular defining the outside of the package 2 once formed...

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Abstract

There is described a sterilization apparatus (13) for sterilizing a web (4) of packaging material having at least one conductive layer and advancing along a web advancement path (P), the sterilizationapparatus (13) comprises at least one irradiation device (25) adapted to direct a sterilization irradiation onto at least one face (7, 8) of the advancing web (4) of packaging material and a grounding unit (26) having at least one grounded and conductive interaction element (32) configured to establish contact with a lateral edge (5, 6) of the web (4) of packaging material so as to electrically connect to the at least one conductive layer for grounding, in use, the at least one conductive layer.

Description

technical field [0001] The invention relates to a sterilization device for a packaging machine for producing sealed packages of pourable products, in particular pourable food products. [0002] The invention also relates to a packaging machine for producing sealed packages of pourable products, in particular pourable food products, with a sterilizing device. [0003] The invention also relates to a method for sterilizing a web of packaging material from which a sealed package of a pourable product, in particular a pourable food product, is formed. Background technique [0004] It is known that many liquid or pourable food products, such as fruit juices, UHT (Ultra High Temperature Treated) milk, wine, tomato sauce, etc., are sold in packages made of aseptic packaging materials. [0005] A typical example is the parallelepiped-shaped package for liquid or pourable food products, called Tetra Brik Aseptic (registered trademark), which is produced by sealing and folding lamina...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L2/08B65B55/00
CPCA61L2/087A61L2202/14B65B9/20B65B55/08A61L2202/23
Inventor 马尔科·里科马泰奥·布尔加雷利
Owner TETRA LAVAL HLDG & FINANCE SA