EP2200809A2 - Procede de mise en pression de l'interieur d'un contenant a paroi mince, contenant sous pression obtenu - Google Patents
Procede de mise en pression de l'interieur d'un contenant a paroi mince, contenant sous pression obtenuInfo
- Publication number
- EP2200809A2 EP2200809A2 EP08842872A EP08842872A EP2200809A2 EP 2200809 A2 EP2200809 A2 EP 2200809A2 EP 08842872 A EP08842872 A EP 08842872A EP 08842872 A EP08842872 A EP 08842872A EP 2200809 A2 EP2200809 A2 EP 2200809A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- thin
- pressurizing
- walled
- container according
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 11
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 10
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 4
- 235000015203 fruit juice Nutrition 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 235000013336 milk Nutrition 0.000 claims description 2
- 239000008267 milk Substances 0.000 claims description 2
- 210000004080 milk Anatomy 0.000 claims description 2
- 235000019198 oils Nutrition 0.000 claims description 2
- -1 polyethylene terephthalate Polymers 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 230000009477 glass transition Effects 0.000 description 3
- 230000001143 conditioned effect Effects 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000009455 aseptic packaging Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/64—Heating or cooling preforms, parisons or blown articles
-
- 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
- B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B3/02—Machines characterised by the incorporation of means for making the containers or receptacles
- B65B3/022—Making containers by moulding of a thermoplastic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4273—Auxiliary operations after the blow-moulding operation not otherwise provided for
- B29C49/42808—Filling the article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/64—Heating or cooling preforms, parisons or blown articles
- B29C49/6604—Thermal conditioning of the blown article
- B29C49/6605—Heating the article, e.g. for hot fill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
Definitions
- the present invention relates to a method of pressurizing the interior of a thin-walled container to impart a high mechanical strength.
- the invention also covers the pressurized container thus obtained with high mechanical strength.
- Thin-walled containers are known for example in patent applications WO-O3 / 033361, EP-1468930 and EP-1527999.
- the rigidity of such a thin-walled container poses another problem because these containers are conditioned at room temperature and when these containers are placed in a cold environment, there is a phenomenon of collapse which causes deformation of the container. Therefore, when the thin-walled containers are filled cold with flat liquids such as mineral water, oil, fruit juice, milk, it is necessary to use an aseptic working system, necessarily. Then, to meet the need for rigidity, it is planned to put these thin-walled containers under internal pressure by including the so-called method of nitrogen drop which is commonly used industrially. This method consists in introducing into the filled container of the liquid to be conditioned, a drop of liquid nitrogen, immediately before capping, in the headspace of the container.
- the distribution means of this drop of nitrogen must be integrated in the chain and, therefore, they must be adapted to operate in an aseptic environment, which is a strong constraint: cleaning, sterilization, maintenance.
- An additional station involves an additional source of failure to stop a chain on which the interventions are difficult and long because it is necessary to put all the conditions of aseptic packaging.
- the liquid nitrogen at a strongly negative temperature, falls into the liquid at room temperature so that the drop of drop regularly causes splashing on the edges of the container.
- the material used for the manufacture of thin-walled containers is often PET, polyethylene terephthalate, known for its transparency, its low weight and its great possibilities of conformation.
- PET also allows a good conservation of the contained liquids.
- the present invention provides a method of pressurizing the interior of a thin-walled container, filled cold and containing a flat liquid to improve the rigidity of said container before opening, a method that overcomes the problems mentioned above .
- the thin-walled container is of the type manufactured in known manner by blowing from a preform.
- This container has the necessary volume and searched.
- the thin-walled container obtained has a weight ratio of material / wall surface of the order of 150 g / m 2 to 250 g / m 2 and more particularly 150 g / m 2 at 200 g / m 2 .
- the method of pressurizing, according to the present invention, a thin-walled container for containing a flat liquid consists of the succession of the following steps:
- This last so-called heating step of the wall is intended to heat only the wall taken in its thickness. This heat supply causes the relaxation of the stresses which had been frozen by the rapid cooling after deformation during manufacture.
- the residual stresses are bi-oriented.
- the container therefore tends to return to its original shape, that is to say that of the preform. Because of this tendency to a volume reduction, the interior of the container is pressurized and as the liquid is incompressible, the head space is compressed to a balance between the pressure exerted by the wall and the internal pressure.
- Such heating can be achieved by means of a hot air projection on the periphery of the container for a short time. It is necessary to reach temperature point causing stress relaxation in the material, also known as the glass transition point.
- the supply of heat energy must be important for a very short time.
- the PET which is bad conductor of the heat, absorbs the calories brought by the hot air, which leads to a fast release of the stresses and avoids the transmission of the calories to the liquid or at least renders totally negligible the quantity of calories transmitted .
- the internal pressurization according to the method of the present invention also makes it possible to compensate for the pressure decrease, which is small but may exist, related to the loss of a part of the liquid due to the permeability of the walls, these walls being very thin.
- the pressurization of the inside of the container also makes it possible to compensate for the collapse due to a decrease in temperature between the conditioning temperature and the storage temperature, before opening.
- Thin-walled containers thus produced having wall thicknesses such as the weight ratio of material / surface is between 150g / m 2 and 250g / m 2 , more particularly between 150 g / m 2 and 200 g / m 2 , can withstand significant loads because of their greatly improved rigidity, including such containers can be palletized and the pallets can themselves be stacked.
- Heating which is indicated that a preferred embodiment is that of hot air may also use infrared heaters.
- the material concerned is PET because it is currently the most used but any suitable material for making a container, likely to have residual stresses, come from deformation, is concerned by the present invention.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Press Drives And Press Lines (AREA)
- Vacuum Packaging (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Basic Packing Technique (AREA)
- Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0758188A FR2922151B1 (fr) | 2007-10-10 | 2007-10-10 | Procede de mise en pression de l'interieur d'un contenant a paroi mince, contenant sous pression obtenu |
PCT/FR2008/051825 WO2009053615A2 (fr) | 2007-10-10 | 2008-10-09 | Procede de mise en pression de l'interieur d'un contenant a paroi mince, contenant sous pression obtenu |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2200809A2 true EP2200809A2 (fr) | 2010-06-30 |
Family
ID=39315191
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08842872A Withdrawn EP2200809A2 (fr) | 2007-10-10 | 2008-10-09 | Procede de mise en pression de l'interieur d'un contenant a paroi mince, contenant sous pression obtenu |
Country Status (10)
Country | Link |
---|---|
US (1) | US20100209635A1 (fr) |
EP (1) | EP2200809A2 (fr) |
JP (1) | JP2011500457A (fr) |
CN (1) | CN101842216A (fr) |
AU (1) | AU2008315891A1 (fr) |
CA (1) | CA2702282A1 (fr) |
FR (1) | FR2922151B1 (fr) |
MX (1) | MX2010003780A (fr) |
WO (1) | WO2009053615A2 (fr) |
ZA (1) | ZA201002461B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2639197A1 (fr) | 2012-03-12 | 2013-09-18 | Sogepi | Procédé de traitement thermique d'un contenant destiné à être empli à chaud, pour stockage longue durée, contenant obtenu |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102641700B (zh) * | 2011-03-25 | 2014-03-12 | 京东方科技集团股份有限公司 | 微型容器的制备方法及系统、微型容器及微型容器模具 |
DE102015206359A1 (de) * | 2015-04-09 | 2016-10-13 | Krones Ag | Vorrichtung zum Überdruckstabilisieren von gefüllten und verschlossenen PET-Behältern und Verfahren zum Überdruckstabilisieren von gefüllten PET-Behältern |
Family Cites Families (44)
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US4040233A (en) * | 1970-09-14 | 1977-08-09 | Valyi Emery I | Method of obtaining a filled, fluid barrier resistant plastic container |
GB1474044A (en) * | 1974-12-03 | 1977-05-18 | Ici Ltd | Plastics container manufacture |
US4318882A (en) * | 1980-02-20 | 1982-03-09 | Monsanto Company | Method for producing a collapse resistant polyester container for hot fill applications |
US4356681A (en) * | 1980-10-31 | 1982-11-02 | The Seven-Up Company | Method and apparatus for heating containers having a product liquid therein |
JPS5881131A (ja) * | 1981-11-10 | 1983-05-16 | Mitsubishi Plastics Ind Ltd | プラスチツク製びん及びその製法 |
US4522779A (en) * | 1983-11-28 | 1985-06-11 | Owens-Illinois, Inc. | Method for production of poly(ethylene terephthalate) articles |
US4539172A (en) * | 1983-12-16 | 1985-09-03 | Baxter Travenol Laboratories, Inc. | Method of blowmolding a container having an integral inner dispensing outlet |
FR2595294B1 (fr) * | 1986-03-04 | 1988-07-08 | Sidel Sa | Procede et installation pour fabriquer des recipients, tels que des bouteilles, en polyethyleneterephtalate, resistant a des conditions thermiques relativement severes au cours de leur utilisation |
US4863046A (en) * | 1987-12-24 | 1989-09-05 | Continental Pet Technologies, Inc. | Hot fill container |
SE462591B (sv) * | 1988-12-29 | 1990-07-23 | Plm Ab | Saett och anordning foer framstaellning av behaallare |
US5352402A (en) * | 1989-10-23 | 1994-10-04 | Nissei Asb Machine Co., Ltd. | Method and apparatus for manufacturing biaxially oriented, thermally stable, blown containers |
US5104706A (en) * | 1990-03-15 | 1992-04-14 | Continental Pet Technologies, Inc. | Preform for hot fill pressure container |
US5281387A (en) * | 1992-07-07 | 1994-01-25 | Continental Pet Technologies, Inc. | Method of forming a container having a low crystallinity |
WO1994001269A1 (fr) * | 1992-07-07 | 1994-01-20 | Continental Pet Technologies, Inc. | Procede de formation d'un recipient a paroi laterale a haute cristallinite et a base a faible cristallinite |
US5419866A (en) * | 1992-11-06 | 1995-05-30 | Pepsico Inc. | Process for heat treating thermoplastic containers |
JP2575973Y2 (ja) * | 1993-04-09 | 1998-07-02 | 東洋製罐株式会社 | 無菌充填用プラスチックびん |
JP3047732B2 (ja) * | 1994-05-16 | 2000-06-05 | 東洋製罐株式会社 | 二軸延伸ブロー容器の製造方法 |
DE9416093U1 (de) * | 1994-10-06 | 1996-02-01 | Roßberg, Franz, 49757 Werlte | Kunststoffverschluß für eine Wulstrandflasche |
US5614148A (en) * | 1995-01-30 | 1997-03-25 | Dtl Technology Limited Partnership | One piece self-standing blow molded plastic containers made from a monobase preform |
US5673808A (en) * | 1995-02-06 | 1997-10-07 | Ev Family Limited Partnership | Heat treated plastic closure |
US5637167A (en) * | 1995-05-22 | 1997-06-10 | Continental Pet Technologies, Inc. | Method for post-mold attachment of a handle to a strain-oriented plastic container |
ES2153984T3 (es) * | 1995-11-08 | 2001-03-16 | Scimed Life Systems Inc | Procedimiento de formacion de balon mediante estrechamiento por estirado en frio. |
US6062408A (en) * | 1997-04-09 | 2000-05-16 | Dtl Technology Limited Partnership | Wide mouth hot fill container |
FR2772365B1 (fr) * | 1997-12-15 | 2000-02-11 | Le Froid Sa | Procede de conditionnement de boissons dans des recipients de terephtalate de polyethylene non modifie |
US6143234A (en) * | 1999-04-21 | 2000-11-07 | Ball Corporation | Apparatus and method for cooling plastic containers |
US6568156B2 (en) * | 2000-06-30 | 2003-05-27 | Schmalbach-Lubeca Ag | Method of providing a thermally-processed commodity within a plastic container |
US6502369B1 (en) * | 2000-10-25 | 2003-01-07 | Amcor Twinpak-North America Inc. | Method of supporting plastic containers during product filling and packaging when exposed to elevated temperatures and internal pressure variations |
JP2002370721A (ja) * | 2001-06-13 | 2002-12-24 | Toyo Seikan Kaisha Ltd | 合成樹脂製ボトル |
US6688081B2 (en) * | 2001-12-18 | 2004-02-10 | Schmalbach-Lubeca Ag | Method for reducing headspace gas |
FR2839277B1 (fr) * | 2002-05-03 | 2005-04-08 | Nestle Waters Man & Technology | Procede de fabrication d'un contenant en resine polyester et dispositif pour sa mise en oeuvre |
US20040091651A1 (en) * | 2002-11-01 | 2004-05-13 | Mark Rule | Pet copolymer composition with enhanced mechanical properties and stretch ratio, articles made therewith, and methods |
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DE60335447D1 (de) * | 2003-04-15 | 2011-02-03 | Nestle Waters Man & Technology | Dünnwandiger Behälter |
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MX2007003748A (es) * | 2004-09-30 | 2007-11-07 | Graham Packaging Co | Recipiente de presion con paneles de vacio diferencial. |
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FR2887238B1 (fr) * | 2005-06-21 | 2007-09-28 | Jean Tristan Outreman | Procede de remplissage a chaud d'un contenant a paroi mince et contenant rempli ainsi obtenu |
JP4873912B2 (ja) * | 2005-09-16 | 2012-02-08 | ザ コカ・コーラ カンパニー | プラスチックボトル |
US7810664B2 (en) * | 2005-09-30 | 2010-10-12 | Graham Packaging Company, L.P. | Squeezable multi-panel plastic container with smooth panels |
US7914726B2 (en) * | 2006-04-13 | 2011-03-29 | Amcor Limited | Liquid or hydraulic blow molding |
US8512783B2 (en) * | 2007-04-05 | 2013-08-20 | Graham Packaging Company Lp | Reduced pressure loss pasteurizable container and method of making the same |
FR2922147B1 (fr) * | 2007-10-10 | 2010-01-01 | Tecsor | Procede de fabrication d'un contenant a paroi mince, procede de mise en pression de ce contenant |
US8017064B2 (en) * | 2007-12-06 | 2011-09-13 | Amcor Limited | Liquid or hydraulic blow molding |
DE102008059624A1 (de) * | 2008-11-28 | 2010-06-02 | Krones Ag | Vorrichtung und Verfahren zum Herstellen von Kunststoffbehältnissen und nach diesem Verfahren hergestelltes Kunststoffbehältnis |
-
2007
- 2007-10-10 FR FR0758188A patent/FR2922151B1/fr not_active Expired - Fee Related
-
2008
- 2008-10-09 CN CN200880111758A patent/CN101842216A/zh active Pending
- 2008-10-09 JP JP2010528459A patent/JP2011500457A/ja active Pending
- 2008-10-09 EP EP08842872A patent/EP2200809A2/fr not_active Withdrawn
- 2008-10-09 WO PCT/FR2008/051825 patent/WO2009053615A2/fr active Application Filing
- 2008-10-09 CA CA2702282A patent/CA2702282A1/fr not_active Abandoned
- 2008-10-09 MX MX2010003780A patent/MX2010003780A/es not_active Application Discontinuation
- 2008-10-09 US US12/681,955 patent/US20100209635A1/en not_active Abandoned
- 2008-10-09 AU AU2008315891A patent/AU2008315891A1/en not_active Abandoned
-
2010
- 2010-04-08 ZA ZA2010/02461A patent/ZA201002461B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2009053615A2 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2639197A1 (fr) | 2012-03-12 | 2013-09-18 | Sogepi | Procédé de traitement thermique d'un contenant destiné à être empli à chaud, pour stockage longue durée, contenant obtenu |
Also Published As
Publication number | Publication date |
---|---|
CN101842216A (zh) | 2010-09-22 |
MX2010003780A (es) | 2010-09-24 |
AU2008315891A1 (en) | 2009-04-30 |
ZA201002461B (en) | 2011-02-23 |
WO2009053615A2 (fr) | 2009-04-30 |
WO2009053615A3 (fr) | 2009-06-18 |
FR2922151A1 (fr) | 2009-04-17 |
US20100209635A1 (en) | 2010-08-19 |
JP2011500457A (ja) | 2011-01-06 |
FR2922151B1 (fr) | 2010-01-01 |
CA2702282A1 (fr) | 2009-04-30 |
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Extension state: AL BA MK RS |
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Owner name: PLASTIPAK PACKAGING, INC. |
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