EP1332089B1 - Method for packaging products prone to decay - Google Patents

Method for packaging products prone to decay Download PDF

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Publication number
EP1332089B1
EP1332089B1 EP01969565A EP01969565A EP1332089B1 EP 1332089 B1 EP1332089 B1 EP 1332089B1 EP 01969565 A EP01969565 A EP 01969565A EP 01969565 A EP01969565 A EP 01969565A EP 1332089 B1 EP1332089 B1 EP 1332089B1
Authority
EP
European Patent Office
Prior art keywords
synthetic foil
foil
synthetic
products
perforations
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.)
Expired - Lifetime
Application number
EP01969565A
Other languages
German (de)
French (fr)
Other versions
EP1332089A1 (en
Inventor
Stephanus Michael Marie Backus
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.)
PERFOTEC BV
Original Assignee
PERFOTEC BV
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
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Application filed by PERFOTEC BV filed Critical PERFOTEC BV
Publication of EP1332089A1 publication Critical patent/EP1332089A1/en
Application granted granted Critical
Publication of EP1332089B1 publication Critical patent/EP1332089B1/en
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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/02—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for perforating, scoring, slitting, or applying code or date marks on material prior to packaging
    • 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
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/02—Packaging agricultural or horticultural products
    • B65B25/04—Packaging fruit or vegetables

Definitions

  • the invention relates to a method for packaging products prone to decay, such as food products, more particularly vegetables and/or fruit in a synthetic foil, wherein the synthetic foil is transported through a punching device in which the perforations are made n the synthetic foil, the perforated foil is formed into packages having the desired dimensions and these packages are filled with the products and closed, the perforation surface per surface unit synthetic foil being determined depending upon the product to be packaged and the perforations being obtained by means of high energy beams.
  • Packaging vegetables and/or fruit in packages, more particularly bags made of synthetic foil, whereby the synthetic foil is provided with perforations, is known from WO-A-93.22207 and DE-A-1952341.
  • the perforation size i.e. the size of each perforation combined with the perforation number should be determined depending upon the nature of the product to be packaged.
  • the invention aims at offering a method for packaging food products being prone to decay so as to alleviate this problem.
  • the aim is reached according to the invention by means of a method for packaging products prone to decay, such as food products, more particularly vegetables and/or fruit in a synthetic foil, wherein the synthetic foil is transported through a punching device in which the perforations are made in the synthetic foil, the perforated foil is formed into packages having the desired dimensions and these packages are filled with the products and closed, the perforation surface per surface unit synthetic foil being determined depending upon the product to be packaged and characterized in that the perforations are obtained by means of high energy beams, and the perforation surface per surface unit of synthetic foil is set by controlling the number of emerging high energy emitters and the beam intensity.
  • the invention also relates to a device for applying the above-mentioned method, wherein said device is made of a combination of a feeding device for feeding a synthetic foil, a device for perforating the synthetic foil, a device for forming a package from the perforated synthetic foil, a device for filling the formed package with products, and a device for sealing the filled package, and the various devices are combined into an integrated device characterised in that the device for punching comprises means for emitting high energy beams and control elements for intermittent activation of the beams emitting means and control of the beam intensity so that the number of perforations per surface unit and the perforation size can be controlled.
  • the device is provided with regulation elements by means of which the perforation surface per surface unit is controlled.
  • the annotation 1 schematically illustrates a synthetic foil from stock.
  • This stock may consist in a synthetic foil roll which is unrolled and is conveyed as a continuous strip towards a perforation device 2. It is also possible to start from a stock 1 consisting in separate sheets of synthetic foil, which are conveyed one by one towards the perforation device 2.
  • the continuous synthetic foil strips or separate sheets of synthetic foil are supplied with perforations. Punching is done by laser beam perforations.
  • a row of high energy emitters such as laser beam generators can be mounted in device 2, which can extend over the whole width of the supplied synthetic strip or synthetic sheet or over a part of the width.
  • the row of laser beam generators extends over a small section, seen in the width, since it is in general sufficient when only part of the package is perforated. Thereby, the numbers of laser beam generators can be kept limited. Perforations can be punched in the synthetic foils through an intermittent activation of the laser beam generators and the appropriate control of the laser beam intensity.
  • the perforation number per surface unit can be controlled by controlling the intensity for the laser beam generators.
  • the perforation surface that is the total surface of the perforations
  • the perforation surface per surface unit can easily be set, via an electronic way, and that according to the product that is to be packaged, in order to obtain an optimum shelf life of the product to be packaged.
  • Determining the perforation surface can be done based on calculations, but this is preferably determined based on experimental results.
  • the synthetic foil After the synthetic foil is thus provided with perforations, it is further conveyed in an operation step towards a device 4 for forming bags.
  • a device 4 for forming bags In the case of a continuous strip, the synthetic foil first passes through a device 3 in which the strip is cut into separate sheets with the desired sizes. In the case of sheets, this device 3 can be omitted.
  • these filled bags 5 are finally conveyed towards a closing machine 6, where the bags are closed in an appropriate way, for example, by means of a heat sealing equipment.
  • the packages are formed by double folding part of the synthetic foil, viewed in the moving direction, and by closing the thus formed edge for example through an heat sealing process. Consecutively or approximately simultaneously with the longitudinal edge being formed, a transversal edge is formed, which is designed as the packaging bottom. Under this form, the thus formed bag is filled with products. Subsequently, a new transversal edge follows, by which the formed and filled package is closed and isolated from the synthetic foil. Preferably in the course of the packaging closure, the bottom edge of the following package is simultaneously formed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Basic Packing Technique (AREA)
  • Bag Frames (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

Method for packaging products being prone to decay, such as food products, more particularly vegetables and/or fruit in a synthetic foil, wherein the synthetic foil is perforated in an operation step, converted into a package and filled. The foil is thereby conveyed through a punching device, whereby perforations are punched in the synthetic foil, the perforated synthetic foil is formed as packages having the desired dimensions and these packages are filled with the products and closed.

Description

The invention relates to a method for packaging products prone to decay, such as food products, more particularly vegetables and/or fruit in a synthetic foil, wherein the synthetic foil is transported through a punching device in which the perforations are made n the synthetic foil, the perforated foil is formed into packages having the desired dimensions and these packages are filled with the products and closed, the perforation surface per surface unit synthetic foil being determined depending upon the product to be packaged and the perforations being obtained by means of high energy beams.
Packaging vegetables and/or fruit in packages, more particularly bags made of synthetic foil, whereby the synthetic foil is provided with perforations, is known from WO-A-93.22207 and DE-A-1952341.
This way, it is aimed at allowing the package to "breath", improving thereby shelf life for the product. This patent application describes more in detail that the perforation size, i.e. the size of each perforation combined with the perforation number should be determined depending upon the nature of the product to be packaged.
Consequently, this leads to the problem that another type of package should be used for each type of product, which involves in practice that a large number of different types of packages such as bags should be available in stock. On the other hand, as the package is made in situ from perforated foil, a large number of different foils should be available in stock, each time for the pertaining products.
The invention aims at offering a method for packaging food products being prone to decay so as to alleviate this problem.
The aim is reached according to the invention by means of a method for packaging products prone to decay, such as food products, more particularly vegetables and/or fruit in a synthetic foil, wherein the synthetic foil is transported through a punching device in which the perforations are made in the synthetic foil, the perforated foil is formed into packages having the desired dimensions and these packages are filled with the products and closed, the perforation surface per surface unit synthetic foil being determined depending upon the product to be packaged and characterized in that the perforations are obtained by means of high energy beams, and the perforation surface per surface unit of synthetic foil is set by controlling the number of emerging high energy emitters and the beam intensity.
With this method, it can be achieved that only a limited number of synthetic foils should be available in stock, since the perforations are only punched at the start of the packaging process. The synthetic foil types that should be available in stock are thereby reduced to the types of various thickness, colour and/or other quality requirements, but depend upon the desired perforation, that can again be punched each time.
The invention also relates to a device for applying the above-mentioned method, wherein said device is made of a combination of a feeding device for feeding a synthetic foil, a device for perforating the synthetic foil, a device for forming a package from the perforated synthetic foil, a device for filling the formed package with products, and a device for sealing the filled package, and the various devices are combined into an integrated device characterised in that the device for punching comprises means for emitting high energy beams and control elements for intermittent activation of the beams emitting means and control of the beam intensity so that the number of perforations per surface unit and the perforation size can be controlled.
According to the invention, the device is provided with regulation elements by means of which the perforation surface per surface unit is controlled.
Other features and advantages of the invention will become evident from the following description referring to the accompanying drawings, wherein the various method steps are illustrated.
The annotation 1 schematically illustrates a synthetic foil from stock. This stock may consist in a synthetic foil roll which is unrolled and is conveyed as a continuous strip towards a perforation device 2. It is also possible to start from a stock 1 consisting in separate sheets of synthetic foil, which are conveyed one by one towards the perforation device 2.
In the perforation device 2, the continuous synthetic foil strips or separate sheets of synthetic foil are supplied with perforations. Punching is done by laser beam perforations. A row of high energy emitters such as laser beam generators can be mounted in device 2, which can extend over the whole width of the supplied synthetic strip or synthetic sheet or over a part of the width. Preferably, the row of laser beam generators extends over a small section, seen in the width, since it is in general sufficient when only part of the package is perforated. Thereby, the numbers of laser beam generators can be kept limited. Perforations can be punched in the synthetic foils through an intermittent activation of the laser beam generators and the appropriate control of the laser beam intensity.
Thereby, it is possible to control the perforation number per surface unit, either by activating or not all the laser beam generators, or by setting the frequency at which the laser beam generators are activated or both. Moreover, the size of each individual perforation can be controlled by controlling the intensity for the laser beam generators. This way, the perforation surface (that is the total surface of the perforations) can be set by surface unit.
As disclosed in WO-A-9322207, it is important to set the perforation surface for each product type, in order to reach an optimum effect. By means of the punching device 2, the total perforation surface per surface unit can easily be set, via an electronic way, and that according to the product that is to be packaged, in order to obtain an optimum shelf life of the product to be packaged.
Determining the perforation surface can be done based on calculations, but this is preferably determined based on experimental results.
After the synthetic foil is thus provided with perforations, it is further conveyed in an operation step towards a device 4 for forming bags. In the case of a continuous strip, the synthetic foil first passes through a device 3 in which the strip is cut into separate sheets with the desired sizes. In the case of sheets, this device 3 can be omitted.
After these bags have been formed, they are conveyed further towards a filling machine 5, where the shaped bags are filled with a measured quantity of food products, which are also supplied to the filling machine 5.
Further, these filled bags 5 are finally conveyed towards a closing machine 6, where the bags are closed in an appropriate way, for example, by means of a heat sealing equipment.
In another embodiment of the invention, the packages are formed by double folding part of the synthetic foil, viewed in the moving direction, and by closing the thus formed edge for example through an heat sealing process. Consecutively or approximately simultaneously with the longitudinal edge being formed, a transversal edge is formed, which is designed as the packaging bottom. Under this form, the thus formed bag is filled with products. Subsequently, a new transversal edge follows, by which the formed and filled package is closed and isolated from the synthetic foil. Preferably in the course of the packaging closure, the bottom edge of the following package is simultaneously formed.
It is obvious that the invention is not limited to the described and illustrated embodiment, but numerous modifications can be made within the scope of the claims. For example, it is more particularly possible to first form the packing after the food products have been placed on a synthetic foil sheet, which actually implies an inversion of steps 4 and 5.

Claims (3)

  1. Method for packaging products prone to decay, such as food products, more particularly vegetables and/or fruit in a synthetic foil, wherein the synthetic foil is transported through a punching device in which the perforations are made in the synthetic foil, the perforated foil is formed into packages having the desired dimensions and these packages are filled with the products and closed, the perforation surface per surface unit synthetic foil being determined depending upon the product to be packaged, characterized in that the perforations are obtained by means of high energy beams and the perforation surface per surface unit of synthetic foil is set by controlling the number of high energy beams emitted per surface unit and the beam intensity.
  2. Method according to claim 1, characterized in that the packages are formed before being filled with the food products.
  3. Device for applying the method according to one of the preceding claims, wherein the device is made of a combination of a feeding device for feeding a synthetic foil, a device for punching the synthetic foil, a device for forming a package from the perforated synthetic foil, a device for filling the formed package with products, and a device for closing the filled package, and the various devices are combined as an integrated assembly, characterised in that the device for punching comprises means for emitting high energy beams and control elements for intermittent activation of the beams emitting means and control of the beam intensity so that the number of perforations per surface unit and the perforation size can be controlled.
EP01969565A 2000-08-03 2001-08-02 Method for packaging products prone to decay Expired - Lifetime EP1332089B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1015870 2000-08-03
NL1015870A NL1015870C2 (en) 2000-08-03 2000-08-03 Method for packaging perishable products.
PCT/EP2001/008944 WO2002012068A1 (en) 2000-08-03 2001-08-02 Method for packaging products prone to decay

Publications (2)

Publication Number Publication Date
EP1332089A1 EP1332089A1 (en) 2003-08-06
EP1332089B1 true EP1332089B1 (en) 2005-01-26

Family

ID=19771845

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01969565A Expired - Lifetime EP1332089B1 (en) 2000-08-03 2001-08-02 Method for packaging products prone to decay

Country Status (9)

Country Link
EP (1) EP1332089B1 (en)
AT (1) ATE287827T1 (en)
AU (1) AU2001289784A1 (en)
CA (1) CA2417839C (en)
DE (1) DE60108658T2 (en)
ES (1) ES2237597T3 (en)
NL (1) NL1015870C2 (en)
PT (1) PT1332089E (en)
WO (1) WO2002012068A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011110192A1 (en) 2010-03-10 2011-09-15 Perfo Tec Bv A process for defining the respiration characteristics of a food product

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006063609A1 (en) * 2004-12-13 2006-06-22 Perfo Tec Bv Device for perforating a flexible film
EP1714885B1 (en) * 2005-04-19 2008-08-13 Multivac Sepp Haggenmüller GmbH & Co. KG Packaging machine
ATE531624T1 (en) * 2008-04-29 2011-11-15 Perfotec B V METHOD FOR PRODUCING PERFORATIONS IN A PLASTIC FILM MATERIAL
PL2764948T3 (en) 2010-06-01 2017-08-31 Perfo Knowledgy Bv Apparatus for making perforations in a packaging material and method of adjusting such an apparatus
FR2963541B1 (en) 2010-08-09 2012-09-14 Oreal RECIPIENT ELEMENT FOR CONTAINING A COSMETIC PRODUCT AND METHOD FOR MANUFACTURING THE SAME
NL2010362C2 (en) 2013-02-25 2014-08-26 Perfo Knowledgy B V Method and system for packaging respiring produce.
NL2018335B1 (en) 2017-02-08 2018-09-03 Perfo Tec B V Method and apparatus for packaging respiring produce
WO2018233853A1 (en) 2017-06-23 2018-12-27 Perfo Tec B.V. Packaging apparatus and method
EP3941834A1 (en) 2019-03-21 2022-01-26 Perfo Tec B.V. Method and apparatus for packaging respiring produce

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE757629A (en) * 1969-10-17 1971-04-01 Afrikanische Frucht Compagnie PACKAGING FOR BANANAS AS WELL AS THE PROCESS AND INSTALLATION FOR PACKING THEM
CA2130896C (en) 1992-04-27 2004-10-05 Jose Porchia Microperforated film and packaging bag made therefrom
US5914144A (en) * 1996-09-17 1999-06-22 Wolfe; Steven K. Method for packaging and storing fruits and vegetables
FR2757835B1 (en) * 1996-12-31 1999-03-19 Unisabi Sa LASER PRE-CUT PACKAGE MANUFACTURING METHOD

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011110192A1 (en) 2010-03-10 2011-09-15 Perfo Tec Bv A process for defining the respiration characteristics of a food product

Also Published As

Publication number Publication date
CA2417839C (en) 2009-07-21
NL1015870C2 (en) 2002-02-05
WO2002012068A1 (en) 2002-02-14
CA2417839A1 (en) 2002-02-14
PT1332089E (en) 2005-07-29
AU2001289784A1 (en) 2002-02-18
DE60108658D1 (en) 2005-03-03
DE60108658T2 (en) 2005-08-18
ES2237597T3 (en) 2005-08-01
EP1332089A1 (en) 2003-08-06
ATE287827T1 (en) 2005-02-15

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