EP0446455A1 - Procédé et dispositif de stérilisation d'une bande de matériau d'emballage - Google Patents

Procédé et dispositif de stérilisation d'une bande de matériau d'emballage Download PDF

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Publication number
EP0446455A1
EP0446455A1 EP19900124359 EP90124359A EP0446455A1 EP 0446455 A1 EP0446455 A1 EP 0446455A1 EP 19900124359 EP19900124359 EP 19900124359 EP 90124359 A EP90124359 A EP 90124359A EP 0446455 A1 EP0446455 A1 EP 0446455A1
Authority
EP
European Patent Office
Prior art keywords
packaging material
material web
web
brushing
cleaning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19900124359
Other languages
German (de)
English (en)
Other versions
EP0446455B1 (fr
Inventor
Norbert Prof. Dr.-Ing. Buchner
Massoud Nahidino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0446455A1 publication Critical patent/EP0446455A1/fr
Application granted granted Critical
Publication of EP0446455B1 publication Critical patent/EP0446455B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B55/00—Preserving, protecting or purifying packages or package contents in association with packaging
    • B65B55/02—Sterilising, e.g. of complete packages
    • B65B55/04—Sterilising wrappers or receptacles prior to, or during, packaging
    • B65B55/10—Sterilising wrappers or receptacles prior to, or during, packaging by liquids or gases
    • B65B55/103—Sterilising flat or tubular webs

Definitions

  • the invention relates to a method for sterilizing a web of packaging material according to the preamble of claim 1.
  • a method of this type which has become known, for example, from EP-A-142 758
  • the pre-cleaning of the web of packaging material is carried out in a water bath using ultrasound waves. During this cleaning, a part of the germs is detached from the surface of the packaging material and removed, so that the subsequent UV (ultraviolet) radiation results in a reduced germ load.
  • This known method produces an on average quite good sterilization rate.
  • studies have shown that the packaging material web is not always sufficiently sterile. It is therefore desirable to use a chemical-free sterilization process for a packaging material web, which ensures uniform disinfection with a high sterilization effect.
  • the method according to the invention with the characterizing feature of claim 1 has brought the surprising result that the combination effect of wet cleaning with brushes and subsequent UV irradiation of the packaging material web is considerably better than pre-cleaning with ultrasound. Investigations have shown that a wet cleaning with brushes has a worse cleaning effect than an ultrasonic bath cleaning.
  • the superior effect of the method according to the invention can only subsequently be explained in such a way that, during ultrasonic cleaning, particles and microorganisms loosely adhering to the packaging material surface are released by cavitation when exposed to ultrasound, but that there is no detachment in the case of strongly adhering accumulations of dust and microorganisms and that microorganisms in such clusters are only imperfectly reached due to the shadow formation by UV light.
  • microorganisms sometimes adhere to the surface quite loosely, since they are first detached by the cleaning and then washed up elsewhere. These microorganisms can be removed by a sharp sterile water jet and also by a sharp sterile air jet, which further improves the sterilization result.
  • a device for carrying out the method according to the invention has at least one roller-shaped brush upstream of the UV radiation source and brushing the surface of the packaging material web.
  • a very good cleaning result is achieved if the ends of the bristles of the brush brush the surface of the packaging material web with low tension.
  • Such a device has a simple and inexpensive structure and treats the packaging material gently.
  • a packaging material web 1 is continuously drawn off from a supply roll 2 and passed from above into a container 12 via a deflection roll 11. There it is zigzagged over three lower and two upper deflecting rollers 13 to 17 and then out of the container 12 over a certain distance upwards and then via a deflecting roller 18 to a packaging machine (not shown).
  • the container 12 contains a sterile water bath 3, the level of which is above the upper deflection rollers 16, 17.
  • a roller-shaped brush 21, 22 is rotatably arranged coaxially over the upper deflection rollers 16, 17, the bristles 23 of which protrude radially.
  • the axes of rotation of the brushes 21, 22 have a distance from the upper surface line of the rollers 16, 17, which is approximately 1 mm smaller than the radius of the bristles 23 of the brushes 21, 22, so that the ends of the bristles 23 over the Spread deflection rollers 16, 17 guided web 1 with low tension.
  • the brushes 21, 22 are driven in rotation in a direction opposite to the conveying direction of the web 1.
  • the two brushes 21, 22 are arranged under hoods 25, 26 and dip into the sterile water bath 3 with their lower part so that they touch the web 1 guided over the rollers 16, 17 with low tension with the bristles 23 projecting downwards.
  • the brushes 21, 22 subject the packaging material web 1 to intensive mechanical cleaning in the presence of water, some of which the particles adhering to the coated surface of the web 1, such as dust, microorganisms or the like, are dissolved.
  • the packaging material web 1 is passed between two nozzles 31, 32, which rinse both sides of the web 1 with sterile water in a wide, sharp jet, whereby loose foreign particles are washed away. Then the web 1 runs again between two nozzles 33, 34 which blow sterile compressed air onto the web 1 on both sides in a sharp jet, so that remaining water residues are peeled off and dried away. Finally, the web 1, with the side previously brushed by the brushes 21, 22, is guided past a UV lamp 35, where it is irradiated with UV light.
  • the UV lamp is preferably of the C type with a power of 110 mW cm2.
  • the irradiation time is preferably 5 seconds.
  • the web 1 treated in this way is then fed to a packaging machine, not shown, for forming packaging containers.
  • only one side of the packaging material web 1 is treated, namely the side forming the inside of the packs. It is also possible to sterilize the other side of the packaging material web by an appropriate arrangement of brushes and a UV lamp. It may also be advantageous to add detergents or relaxation agents to the sterile water bath.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
EP90124359A 1990-03-10 1990-12-17 Procédé et dispositif de stérilisation d'une bande de matériau d'emballage Expired - Lifetime EP0446455B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4007714A DE4007714A1 (de) 1990-03-10 1990-03-10 Verfahren und vorrichtung zum sterilisieren einer verpackungsmaterialbahn
DE4007714 1990-03-10

Publications (2)

Publication Number Publication Date
EP0446455A1 true EP0446455A1 (fr) 1991-09-18
EP0446455B1 EP0446455B1 (fr) 1994-11-02

Family

ID=6401937

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90124359A Expired - Lifetime EP0446455B1 (fr) 1990-03-10 1990-12-17 Procédé et dispositif de stérilisation d'une bande de matériau d'emballage

Country Status (3)

Country Link
EP (1) EP0446455B1 (fr)
JP (1) JPH04215925A (fr)
DE (2) DE4007714A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022125314A1 (fr) * 2020-12-11 2022-06-16 Illinois Tool Works Inc. Système et procédé de nettoyage d'un objet

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007003334A1 (de) 2007-01-17 2008-08-07 Khs Ag Verfahren und Vorrichtung zur kontinuierlichen Sterilisierung von Beutelverpackungen
DE102007015754B3 (de) * 2007-03-30 2008-05-29 Khs Ag Anlage sowie Verfahren zum sterilen Verpacken von Produkten

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383831A (en) * 1964-04-03 1968-05-21 Goldsmith Frank Web sterilization and package forming apparatus
DE2026375A1 (de) * 1969-05-30 1970-12-03 Industriell Aseptik AB, Sjöbo (Schweden) Verfahren und Vorrichtung zulm Entfernen von Verunreinigungen oder Chemikalien von der Oberfläche eines Verpackungsmaterials
GB2018137A (en) * 1978-04-05 1979-10-17 Tetra Pak Int Sterilizing packaging material webs

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59124654U (ja) * 1983-02-08 1984-08-22 宇部興産株式会社 金型等のクランプ装置
JPS6297715U (fr) * 1985-12-10 1987-06-22

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383831A (en) * 1964-04-03 1968-05-21 Goldsmith Frank Web sterilization and package forming apparatus
DE2026375A1 (de) * 1969-05-30 1970-12-03 Industriell Aseptik AB, Sjöbo (Schweden) Verfahren und Vorrichtung zulm Entfernen von Verunreinigungen oder Chemikalien von der Oberfläche eines Verpackungsmaterials
GB2018137A (en) * 1978-04-05 1979-10-17 Tetra Pak Int Sterilizing packaging material webs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022125314A1 (fr) * 2020-12-11 2022-06-16 Illinois Tool Works Inc. Système et procédé de nettoyage d'un objet

Also Published As

Publication number Publication date
EP0446455B1 (fr) 1994-11-02
DE4007714A1 (de) 1991-09-12
JPH04215925A (ja) 1992-08-06
DE59007641D1 (de) 1994-12-08

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