WO2020174202A1 - Procede et installation de conditionnement de produits, ainsi que que procede d'obtention dune installation et conteneur - Google Patents
Procede et installation de conditionnement de produits, ainsi que que procede d'obtention dune installation et conteneur Download PDFInfo
- Publication number
- WO2020174202A1 WO2020174202A1 PCT/FR2020/050403 FR2020050403W WO2020174202A1 WO 2020174202 A1 WO2020174202 A1 WO 2020174202A1 FR 2020050403 W FR2020050403 W FR 2020050403W WO 2020174202 A1 WO2020174202 A1 WO 2020174202A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- container
- enclosure
- containers
- closure
- millibars
- Prior art date
Links
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
- B65B25/00—Packaging other articles presenting special problems
- B65B25/02—Packaging agricultural or horticultural products
- B65B25/04—Packaging fruit or vegetables
- B65B25/041—Packaging fruit or vegetables combined with their conservation
-
- 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
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
- B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
- B65D81/2046—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under superatmospheric pressure
Definitions
- the invention relates to a process for packaging products, in particular sensitive to oxygen, in containers, as well as a conditioning installation suitable for carrying out the process.
- the invention finds particular application for the packaging of food products in the liquid state, or in the pasty state, or in the solid state or else products in these different states.
- the invention still finds an application
- the invention also relates to a method for obtaining a packaging installation according to the invention from an existing vacuum container closing installation, well known from the state of the art. food industry, hereinafter referred to as vacuum crimper.
- the invention also relates to a container obtained (unsterilized) according to the packaging process according to the invention, but also a container
- the method comprises a sterilization step, carried out continuously or discontinuously.
- the field of the invention is that of the methods used to reduce the quantity of oxygen present in a container, and in particular at the level of the head space, namely the space above the products, and before the closure waterproof of the latter, and / or at the level of the interstitial spaces between the products, below the head space.
- a first technique for reducing the oxygen content consists of placing the container under vacuum when it is sealed.
- the reduction in the amount of oxygen obtained after the crimping step is effected by reducing the volume of residual air, under the action of vacuum.
- a vacuum crimper which makes it possible to crimp a cover on a box. pre-filled with food products.
- a vacuum crimper includes:
- crimping enclosure a gas-tight enclosure, called a crimping enclosure
- a closure system configured to close the upper opening of each container, internal to said crimping chamber by adding a cover and crimping the cover to the container
- a conveying enclosure often partially sealed in the form of a tunnel, opening into the crimping enclosure, receiving a conveyor, ensuring the entry of open containers into the crimping enclosure, upstream of the closing system, and the outlet of the closed containers downstream of the crimping chamber,
- said conveying enclosure has a function of timing and airlock: for this purpose it comprises movable shutters, making it possible to limit the entry of air from the inlet of the conveying enclosure. for open containers towards the outlet of the conveying chamber which opens into the crimping chamber, subjected to a vacuum.
- a first drawback of such a process is that it makes it possible to reduce the concentration of oxygen in the container, to a non-negligible minimum level of 4.5% oxygen by volume after closure.
- a second shortcoming of such a process is that it is only compatible with containers whose walls must withstand a pressure difference between the inside and the outside of the container, when closed.
- a third defect of such a process is that it very strongly limits the temperature of the products at the casing, the vacuum causing a lowering of the boiling temperature, which can cause evaporation of the liquids by boiling at the inside boxes.
- a second technique for reducing the oxygen contained consists of sweeping the headspace of the container with an inerting gas, neutral, such as, for example, nitrogen or carbon dioxide.
- a third technique which was the subject of document FR2964949 A1 of the present Applicant, consists in expelling the air from the container by refusal filling of the container with a liquid, then placing the container filled with refusal in an enclosure. under a controlled, non-oxidizing atmosphere, and in emptying the container of the liquid, in whole or in part, under a non-oxidizing atmosphere while maintaining said products in said container so that said non-oxidizing gas replaces said liquid in said container.
- Such a technique for adding liquid nitrogen does not make it possible to properly preserve solid products with non-negligible porosity, namely having interstitial spaces in a non-negligible quantity in the bed of products, with an oxygen level of less than 4, 5% by volume relative to the total volume of gas contained (in the head volume and interstitial spaces).
- This technique is therefore unsuitable for the preservation of products such as corn, peas, mushrooms, or carrots (in limited juice).
- the aim of the present invention is to provide a continuous conditioning method which overcomes the aforementioned drawbacks by allowing very good performance in reducing oxygen inside the containers, even when the interstitial air to be expelled. is in a non-negligible quantity between the products contained and without modification of the nominal rate as known from vacuum crimping machines.
- the process according to the invention can make it possible to achieve very good performance of oxygen reduction inside the containers in a range going from 4.5% to 0.2% oxygen in volume relative to the total volume of gas contained (in the head volume and the interstitial spaces), strictly less than 4.5%, for example between 3% and 0.2% or even between 2% and 0.2%, or else between 1% and 0.2% oxygen, while maintaining high rates, greater than 100 strokes per minute, in particular greater than 300 strokes per minute such as for example 600 strokes per minute or more, and even in the presence of interstitial air to be expelled between the products contained.
- Another object of the present invention is to provide, at least according to one embodiment, a method which can be implemented using a vacuum crimping machine as known from the state of the art, after slight modifications to this equipment, and therefore at lower cost when this equipment is already existing on the production site.
- Another object of the present invention is to provide, at least according to one embodiment, a method which can be implemented, without restriction on the type of container, namely rigid containers such as boxes of cans, even thin-walled ones, glass or plastic jars, or even flexible containers.
- Another object of the present invention is to provide a container obtained by the packaging process, having a low residual air rate, even in the presence of interstitial spaces between the products, which allows the implementation of optimized sterilization.
- the invention relates first of all to a process for packaging products, in particular sensitive to oxygen, in containers, said containers each having an opening, said process comprising the following steps:
- the upper part of the containers is brought into contact with a gaseous treatment atmosphere, aimed at evacuating all or part of the air present in the container and establishing the required controlled atmosphere,
- the container is closed, hereinafter referred to as the closing step, in a closing enclosure,
- the installation of the controlled atmosphere is carried out in a conveying chamber inside which the open containers advance towards the closing chamber, by the following combined actions:
- a) of injecting a flow of treatment gas comprises, in addition to the injection of a gas flow, the injection of a quantity of liquefied gas, with vaporization (at least partial) of the liquefied gas after closing of the container so as to increase the pressure inside the container greater than the pressure prevailing in the closure enclosure;
- the pressure P prevailing inside the closure enclosure may be greater than the atmospheric pressure Po between 1024 millibars absolute and 1224 millibars absolute, for example between 1024 millibars absolute and 1074 millibars absolute, and again for example between 1024 millibars absolute and 1054 millibars absolute;
- the vacuum created in the conveying chamber is between 600 millibars absolute and 900 millibars absolute; in particular between 700 millibars and 900 millibars
- the gas injection rate in the closure enclosure is between 100 m 3 / h and 500 m 3 / h, and for example between 200 m 3 / h and 300 m 3 / h.
- the container has interstitial spaces between the products filled with the treatment gas, once the container is closed; the rate of interstitial spaces in the bed of products filled with the treatment gas, called the rate of porosity, may be between 20% and 60%, for example between 30% and 40%.
- the container has a head space between the products and the upper part of the container filled with the treatment gas, once the container is closed;
- - Action b) is carried out by means of a distribution and regulation chamber placed under vacuum, as well as a plurality of suction ducts, in parallel joining the distribution chamber to said suction zones distributed over the length of said conveying enclosure;
- the treatment gas is nitrogen, in addition to C0 2 ,
- the products are food products.
- the containers are metal cans, the closure of the containers essentially consisting of adding lids and crimping the lids to the containers.
- the containers are flexible containers.
- the container can be closed by pinching the walls of the opening between them, and placing a weld between the pinched walls.
- the containers may be rigid plastic or jar-type glass containers.
- the closure can be obtained by means of a cover or the establishment of an equivalent means such as a stopper.
- the pressure inside the containers can be greater than, but close to atmospheric pressure, namely greater than 1024 millibars absolute at 20 ° C., between 1024 millibars absolute and 1224 millibars absolute, once closed.
- the pressure inside the containers is substantially equal to or close to, during closing, the pressure prevailing in the closing enclosure, which is greater than but close to atmospheric pressure, such an internal pressure is obtained when the conditioning process does not provide for the injection of liquefied gas in action a).
- the pressure internal to the closed containers is markedly greater than the pressure prevailing in the closure enclosure and may thus be much greater than atmospheric pressure, namely in particular greater than 1424 millibars absolute
- the rate of interstitial spaces in the bed of products filled with the treatment gas may be between 20% and 60%, for example between 30% and 40%,
- a production rate greater than 100 strokes per minute, or even 300 strokes per minute, or even greater than or equal to 600 strokes per minute.
- the invention also relates to a container (unsterilized) containing products sensitive to oxygen obtained by the process according to the invention, the product bed having interstitial spaces filled with the treatment gas;
- the quantity of (residual) oxygen in the container is between 4.5% to 0.2% oxygen by volume relative to the total volume of gas contained in the headspace and interstitial spaces, strictly less than 4.5% by volume, for example between 3% and 0.2%, or even between 2% and 0.2% or even between 1% and 0.2%
- the pressure inside the container is overpressure with respect to atmospheric pressure greater than 1024 millibars absolute at 20 ° C.
- the rate of interstitial spaces in the bed of products filled with the treatment gas called the porosity rate, is not negligible, in particular between 20% and 60%, for example between 30% and 40%.
- the internal pressure of the container may be between 1024 millibars absolute and 1224 millibars absolute, in particular between 1075 millibars absolute and 1224 millibars absolute, such as for example 1075 millibars absolute when the process is devoid of any injection of liquefied gas to action a).
- the pressure inside the unsterilized container can be greater than 1424 millibars absolute in the event of injection of liquefied gas.
- the rate of interstitial spaces in the bed of products filled with the treatment gas may be between 20% and 60%, for example between 30% and 40%.
- the products can be corn (in limited juice) with the presence of interstitial spaces filled with said treatment gas between the corn kernels.
- the products can also be peas, or mushrooms, or carrots with limited juice.
- the invention also relates to a packaging process according to the invention in which the container is subjected after closure to a sterilization step by heat treatment at a temperature above 100 ° C, such as for example between 1 10 ° C and 130 ° C.
- the invention also relates to a sterilized container obtained according to the packaging process (and sterilization by heat treatment) in which the bed of products has interstitial spaces filled with the treatment gas and in which the quantity of oxygen in the container is between 4.5% to 0.2% oxygen by volume relative to the total volume of gas contained in the head volume and interstitial spaces, strictly less than 4.5%, in particular between 3% and 0.2%, or even between 2% and 0.2%, or even between 1% and 0.2%, and in which the pressure inside the container is at an overpressure with respect to the atmospheric pressure greater than 1024 millibars absolute.
- the internal pressure can be between 1024 millibars absolute and 1424 millibars absolute at 20 ° C, or even between 1024 millibars absolute and 1224 millibars absolute, in particular when the process is devoid of injection of liquefied gas in action a).
- the pressure inside the sterilized container can still be greater than 1424 millibars absolute in the event of injection of liquefied gas in said action a), substantially greater than the pressure prevailing in the closure enclosure.
- the rate of interstitial spaces in the bed of products filled with the treatment gas can be between 20% and 60%, for example between 30% and 40%.
- the products are corn with the presence of interstices filled with the treatment gas between the corn kernels, the pressure inside the container being between 1,124 millibars absolute and 1,424 millibars absolute at 20 ° C, or even between 1,124 millibars absolute and 1,224 millibars absolute, in particular 1,194 millibars absolute.
- the products can still be peas, mushrooms or carrots (in limited juice).
- the invention also relates to a packaging installation suitable for implementing the packaging process according to the invention, comprising:
- a closure system configured to close the upper opening of each container, internal to said closure enclosure
- a conveyor function as an airlock, ensuring the entry of open containers into the closing enclosure, upstream of the closing system and the exit of closed containers downstream of the closure enclosure, said conveyor serving as an airlock comprising shutters, movable,
- a conveyor for supplying the covers making it possible to transfer from atmospheric pressure (outside the closure enclosure) to the interior of the closure enclosure.
- a source of oxygen-free treatment gas such as nitrogen, for example, and a system for injecting said treatment gas into the closure chamber
- a vacuum source connected to a vacuum distribution and regulation chamber, as well as a plurality of suction ducts joining the distribution and regulation chamber to said suction zones distributed over the length of said conveying chamber
- the invention relates to a process for obtaining an installation according to the invention from an existing container closing installation, under vacuum, in particular a vacuum crimping machine, hereinafter referred to as a vacuum crimping machine.
- a vacuum crimping machine including:
- a closure system configured to close the upper opening of each container, internal to said closure enclosure
- a partially sealed conveying enclosure opening into said closing enclosure, receiving a conveyor function as an airlock, ensuring the entry of open containers into the closing enclosure, upstream of the closing system and the exit of closed containers upstream downstream of the closure enclosure, said conveyor serving as an airlock comprising movable shutters,
- FIG. 1 is a schematic top view of a vacuum crimping installation, as known from the state of the art, usually referred to as a linear feed conveyor vacuum crimper.
- Fig. 1a is a schematic top view of a vacuum crimping installation, as known from the state of the art, usually referred to as a linear feed conveyor vacuum crimper.
- FIG. 1a is a schematic top view of a vacuum crimping installation, as known from the state of the art, usually called a rotary feed conveyor vacuum crimper.
- FIG. 2 is a schematic top view of a packaging installation according to the invention which can be obtained by modifying the vacuum crimping machine of FIG. 1 and for which the conveying enclosure is a tunnel containing a conveyor.
- FIG. 3 is a schematic side view of the installation of FIG. 2, illustrating more particularly the combined actions of the vacuum created in the tunnel and the replacement of the exhaust air by the non-oxidizing treatment gas flowing against the current of the containers open in said tunnel, and according to the packaging method according to the invention.
- Fig 4 is a schematic side view of the installation of FIG. 2, illustrating more particularly the combined actions of the vacuum created in the tunnel and the replacement of the exhaust air by the non-oxidizing treatment gas flowing against the current of the containers open in said tunnel, and according to the packaging method according to the invention.
- FIG. 4 is a schematic view of equipment for measuring the oxygen level in the total volume of gas contained in the headspace and interstitial spaces of a container.
- the products can be food products, (solid) for example, vegetables, cereals, meat, fish, or the like, alone or in mixture, with or without juice.
- the invention for example finds a particular application when interstitial air is present in a non-negligible quantity between the products, for example for products with limited juice: the invention thus finds a particular application for the packaging of corn with limited juice. with the presence of interstices in the container between the corn kernels.
- the containers each have an upper opening, allowing the container to be filled with the products.
- the product packaging process comprises the following steps:
- the upper part of the receptacles is brought into contact with a gaseous treatment atmosphere, aimed at evacuating all or part of the air present in the receptacle and establishing the required controlled atmosphere,
- the opening of the container hereinafter referred to as the closing step, is closed in a sealed enclosure 3,
- the installation of the controlled atmosphere is carried out in a conveying chamber, partially sealed inside which the open containers advance in the direction of the closing chamber. 3, by the following combined actions:
- a small quantity of liquefied gas can be introduced into the container in the closure enclosure.
- said action a) of injecting a flow of treatment gas G comprises, in addition to the injection of a gas flow, the injection of a quantity of liquefied gas with vaporization of the liquefied gas after closing the container of so as to increase the pressure inside the container greater than the pressure prevailing in the closure enclosure.
- the internal pressure of the container once closed can thus be controlled, maintained between 1024 millibars and 1224 millibars absolute at 20 ° C and as described below, namely at a pressure substantially equal to or close to the pressure prevailing in the closure enclosure 3.
- said action a) does not provide for the step of injecting a quantity of aforementioned liquefied gas.
- an internal pressure of the container too close to atmospheric pressure namely in the range 1024 millibars absolute and 1224 millibars absolute at 20 ° C can cause stability problems. of box shape in particular when the storage temperature of the boxes varies in an amplitude range of 10 ° C to 37 ° C, with change of box shape (swelling / contraction) during temperature changes.
- FIG. 3 Such a phenomenon is illustrated in FIG. 3: it is noted that the non-oxidizing treatment gas supplied directly into the closure chamber 3 (downstream) is sucked into the conveying chamber 4, under the action vacuum created upstream. The treatment gas is sucked against the current of the open containers 1 flowing along the conveying enclosure 4 in the direction of the closing enclosure 3. In this conveying enclosure 4, the treatment gas comes expelling the air from the containers which escapes from said containers, this flushing action being amplified by the vacuum to which the open containers are subjected in said conveying chamber 4. The concentration of oxygen in the containers is thus reduced, a decrease which is further amplified by the effect of dilution of oxygen in the air by the treatment gas which occurs in said conveying chamber 4, or even in said closing chamber 3.
- the vacuum created in the conveying enclosure 4 in step b) can be between 600 millibars absolute and 900 millibars absolute, in particular between 700 millibars absolute and 900 millibars absolute (measurement taken in the middle of the conveying enclosure 4, depending on the direction of advance of the containers);
- the gas injection flow rate in the closure enclosure in step a) can be between 100 m 3 / h and 500 m 3 / h and for example between 200 m 3 / h and 300 m 3 / h , the possible one of liquefied gas (for example liquid nitrogen) between 0.5ml and 5ml per container.
- liquefied gas for example liquid nitrogen
- a reduction in the concentration of oxygen in the containers is thus obtained, a decrease which is amplified under the aforementioned dilution effect.
- the quantity of oxygen in the closed container is between 4.5% to 0.2% oxygen by volume relative to the total volume of gas contained (in the head space and the interstitial spaces), strictly less than 4.5%, for example between 3% and 0.2% such as for example between 2% and 0.2%, such as for example between 1% and 0.2% oxygen.
- the pressure P inside the closure enclosure 3 may be greater than atmospheric pressure, close to atmospheric pressure Po, in particular between 1024 absolute millibars and 1224 absolute millibars, for example between 1024 absolute millibars and 1074 absolute millibars, and again for example between 1024 absolute millibars and 1054 absolute millibars.
- the sealed closure of the container is performed at a pressure close to atmospheric pressure, and substantially at the pressure in the closure enclosure. It is advantageously possible to use containers such as tin cans, even of small thickness, less than 0.14 mm, or even glass or plastic jars or else flexible containers for carrying out the method.
- containers in particular tin cans, in overpressure (controlled) with respect to atmospheric pressure, greater than 1024 millibars absolute at 20 ° C between 1024 millibars absolute and 1224 millibars absolute, by example between 1054 millibars absolute and 1224 millibars absolute.
- the pressure inside the container may be greater than 1454 millibars absolute at 20 ° C.
- a conveyor 5 acting as an airlock which comprises movable shutters 50.
- shutters 50 extending between the open containers, during the advance of the containers 1, ensuring relative gas tightness.
- These shutters 50 make it possible to ensure a certain level of vacuum in the conveying chamber 4, necessary for the implementation of the method.
- Such a conveyor 5 is illustrated schematically by way of example in FIG. 2. It may comprise a flexible strip 51, in the form of a loop, driven in rotation by two rollers 52, 53, each with a vertical axis, distributed at the two ends of the tunnel 4.
- the shutters 50 are plates carried at regular intervals by the flexible strip 51.
- the flexible strip is rotated and synchronizes the containers 1 circulating in said conveying enclosure 4, in particular the tunnel.
- the outgoing strand of the flexible strip accompanies the open containers 1 from the inlet of the conveying enclosure 4 at atmospheric pressure (and in an uncontrolled atmosphere), up to the closing enclosure 3 maintained under non-oxidizing treatment gas.
- the containers 1 are cans, the closing of the containers essentially consisting in adding lids 6 and crimping the lids to the containers.
- the closure can be achieved by pinching the walls of the opening and applying a weld between the pinched walls.
- action b) is carried out by means of a distribution and regulation chamber 70, placed under vacuum, as well as a plurality of suction ducts 71, in parallel joining the distribution and regulation chamber 70 to said zones d suction 7 distributed over the length of said conveying chamber 4.
- This distribution and regulation chamber is subjected to a vacuum source V, such as a vacuum pump.
- the distribution chamber then enables the suction to be distributed uniformly to said suction zones 7.
- the vacuum inside the distribution and control chamber 70 can be between 100 millibars absolute and 700 millibars absolute.
- the treatment gas can be nitrogen, in addition C0 2 or another non-oxidizing gas, or a mixture of non-oxidizing gas.
- the invention also relates to a packaging installation 10, as described above, and suitable for implementing the method according to the invention.
- This installation includes:
- a partially sealed conveying enclosure 4 opening into the closing enclosure 3, receiving a conveyor 5 acting as an airlock, ensuring the entry of the open containers 1 into the closing enclosure 3, upstream of the closing system and the outlet of the closed containers downstream of the closure enclosure 3, said conveyor function as an airlock comprising shutters 50, movable,
- a vacuum source V connected to a vacuum distribution and regulation chamber 70, as well as a plurality of suction ducts 71 joining the distribution and regulation chamber 70 to said suction zones 7 distributed along the length of said conveying chamber 4,
- a conveyor for supplying the covers 9 making it possible to transfer from atmospheric pressure (outside the closure enclosure) to the interior of the closure enclosure.
- FIG. 1 Such an installation 20, in particular a vacuum crimper, known from the state of the art is illustrated schematically in FIG. 1.
- closure system configured to close the upper opening of each container, internal to said closure enclosure, typically by crimping a cover
- a conveying enclosure 4 such as a tunnel, partially sealed, opening into the closing enclosure 3, receiving a conveyor 5 acting as an airlock, ensuring the entry of open containers into the closing enclosure, upstream of the closure system and the exit of closed containers downstream of the closure enclosure, said conveyor function as an airlock comprising movable shutters 50,
- a first defect of such a method is that it makes it possible to reduce the concentration of oxygen in the air, in the container only by reducing the internal pressure of the air in the container when it is closed in the closing enclosure: oxygen is always present in significant quantity in the closed container.
- a second drawback of such a process is that it is compatible only with containers whose walls are thick enough to withstand a pressure difference between the inside and the outside of the container, once closed and submitted. at atmospheric pressure.
- the conditioning process advantageously makes it possible to obtain containers containing products sensitive to oxygen, the product bed having interstitial spaces filled with the treatment gas with a small amount of residual oxygen.
- the quantity of oxygen in the container can be between 4.5% and 0.2% oxygen by volume relative to the total volume of gas contained in the headspace and interstitial spaces, or even between 3% and 0.2%, or alternatively between 2% and 0.2%, or even between 1% and 0.2%, and thus good performance in terms of residual oxygen even in the presence of interstitial air to be expelled between the products , replaced by process gas.
- the pressure inside the container is overpressure relative to atmospheric pressure.
- It can be between 1024 millibars absolute and 1224 millibars absolute at 20 ° C, for example between 1054 millibars absolute and 1224 millibars absolute, in particular when the process does not provide for a step of injecting liquefied gas with the action a ).
- the pressure inside the container can still be much greater than atmospheric pressure, for example greater than 1424 millibars absolute at 20 ° C when the method provides for said injection of liquefied gas in action a). It should be noted that the overpressure indicated is that in the container when the products have not been sterilized.
- these (unsterilized) containers are characterized by a low oxygen content and an internal pressure which may be greater than those obtained by the packaging processes as known from the state of the art, in particular those involving a vacuum or else a gas sweep which, in both cases, generate a partial vacuum typically between 224 millibars absolute to 824 millibars absolute.
- This internal pressure may be favorable to the implementation of sterilization.
- the invention also relates to a packaging method according to the invention in which the container is subjected after closure to a sterilization step. by heat treatment at a temperature above 100 ° C, for example between 110 ° C and 130 ° C in particular above 122 ° C.
- Sterilization can be obtained on a sterilization apparatus operating continuously, or alternatively in a discontinuous manner.
- This process makes it possible to obtain a sterilized container, the product bed having interstitial spaces filled with the treatment gas with a small amount of residual oxygen.
- the quantity of oxygen in the container is between 4.5% to 0.2% oxygen by volume relative to the total volume of gas contained in the headspace and interstitial spaces, strictly less than 4.5 %, in particular between 3% and 0.2%, or even between 2% and 0.2%, or even between 1% and 0.2%.
- the pressure inside the container is overpressure with respect to atmospheric pressure, greater than 1024 millibars absolute at 20 ° C.
- the pressure inside the container can be between 1024 millibars absolute and 1424 millibars absolute at 20 ° C, or even between 1,124 millibars absolute and 1424 millibars absolute when the process does not provide for the injection of liquefied gas in action a).
- the internal pressure may be greater than 1424 millibars absolute at 20 ° C.
- the products are corn with the presence of interstices filled with the treatment gas, the pressure inside the container being between 1,124 millibars absolute and 1,424 millibars absolute, in particular 1,194 millibars absolute at 20 ° vs.
- the pressure inside the container can typically be slightly higher in the sterilized container than in the unsterilized container, at the same temperature (for example 20 ° C) due to possible degassing of the products (when not previously bleached) during heat treatment.
- the products when the products are corn, sterilization generates degassing increasing the pressure inside the closed container.
- sterilization does not cause substantial degassing during sterilization because the products have already been degassed during blanching, before sterilization.
- the invention finds a particular application when the rate of interstitial spaces in the bed of products filled with the treatment gas, called the porosity rate, is between 20% and 60% and, for example between 30% and 40%. %.
- -D the real density of the product (for example corn) which is expressed by the ratio between the mass of a certain volume of this product and the mass of the same volume of water
- - D ’ the bulk density, often called bulk density, ie the ratio of all the products considered, and the overall volume (including interstices) they occupy.
- the porosity rate tp is typically around 42%, and often between 41% and 43% depending on the lots.
- the porosity rate t P is of the order of 34%, and very often between 33% and 35% depending on the batches.
- a graduated column in volume having at one end a flared neck, intended to be immersed in the water of the container and at its other upper end a double, waterproof connection, allowing the adaptation of a Pp pump and an oximeter (Dansensor ® CheckPoint 3) calibrated equipped with a needle for determining the percentage of gaseous oxygen.
- an oximeter Dansensor ® CheckPoint 3
- the measurement protocol is as follows. The container is filled with water beforehand, the graduated column is then returned above the container, its neck immersed. Pumping starts, the air is replaced by water, the level of which rises until all of the air present in the column is removed.
- the container (in particular the tin can) of which one wishes to know the percentage of oxygen by volume is then placed under the flared neck, then opened so as to collect the entire volume of total gas contained (head space and interstitial).
- the released gas drives the water out of the column, a reading of its graduation allows to determine the total volume of gas that was contained.
- the products are corn, with a porosity rate of 42%.
- the containers used are tin cans in the 1/4 format (70 mm high by 65 mm in diameter). These containers were packaged according to the method and according to the invention, by expelling the oxygen contained in the head space and in the interstitial spaces by the combined actions of a flow of nitrogen coming from the closure chamber 3. and the action of the vacuum in the conveying chamber 4. These cans were tested immediately after crimping by measuring the residual oxygen according to the aforementioned protocol.
- Conveyor enclosure such as a tunnel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Vacuum Packaging (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Storage Of Fruits Or Vegetables (AREA)
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA3130612A CA3130612A1 (fr) | 2019-02-28 | 2020-02-28 | Procede et installation de conditionnement de produits, ainsi que que procede d'obtention dune installation et conteneur |
AU2020230038A AU2020230038A1 (en) | 2019-02-28 | 2020-02-28 | Method and plant for packaging products, and method for obtaining a plant and a container |
EP20725795.7A EP3931126A1 (fr) | 2019-02-28 | 2020-02-28 | Procede et installation de conditionnement de produits, ainsi que que procede d'obtention dune installation et conteneur |
CN202080016559.7A CN113646240B (zh) | 2019-02-28 | 2020-02-28 | 用于在容器中包装产品的方法和包装设备 |
US17/434,129 US12030678B2 (en) | 2019-02-28 | 2020-02-28 | Method for packaging products |
MX2021010405A MX2021010405A (es) | 2019-02-28 | 2020-02-28 | Metodo para envasar productos. |
BR112021017008A BR112021017008A2 (pt) | 2019-02-28 | 2020-02-28 | Processo e instalação de condicionamento de produtos, bem como processo de obtenção de uma instalação e recipiente |
JP2021550689A JP2022523536A (ja) | 2019-02-28 | 2020-02-28 | 製品をパッケージングするための方法およびプラント、ならびにプラントおよび容器を実現するための方法 |
ZA2021/05802A ZA202105802B (en) | 2019-02-28 | 2021-08-13 | Method and plant for packaging products, and method for obtaining a plant and a container |
IL285812A IL285812A (en) | 2019-02-28 | 2021-08-23 | Product packaging method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1902077 | 2019-02-28 | ||
FR1902077A FR3093328B1 (fr) | 2019-02-28 | 2019-02-28 | Procédé de conditionnement de produits |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020174202A1 true WO2020174202A1 (fr) | 2020-09-03 |
Family
ID=68072495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2020/050403 WO2020174202A1 (fr) | 2019-02-28 | 2020-02-28 | Procede et installation de conditionnement de produits, ainsi que que procede d'obtention dune installation et conteneur |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP3931126A1 (fr) |
JP (1) | JP2022523536A (fr) |
CN (1) | CN113646240B (fr) |
AU (1) | AU2020230038A1 (fr) |
BR (1) | BR112021017008A2 (fr) |
CA (1) | CA3130612A1 (fr) |
FR (1) | FR3093328B1 (fr) |
IL (1) | IL285812A (fr) |
MX (1) | MX2021010405A (fr) |
WO (1) | WO2020174202A1 (fr) |
ZA (1) | ZA202105802B (fr) |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995031375A1 (fr) | 1994-05-17 | 1995-11-23 | Sanfilippo James J | Systeme et procede de remplissage et scellement de recipients en atmosphere controlee |
EP0761541A1 (fr) | 1995-08-25 | 1997-03-12 | Praxair Technology, Inc. | Système de purge turbo-laminaire pour machine d'emballage |
EP0806354A1 (fr) | 1996-05-07 | 1997-11-12 | James J. Sanfilippo | Dispositif et procédé pour remplacer l'atmosphère à l'intérieur d'un récipient par une atmosphère controlée |
US6305149B1 (en) * | 1993-11-18 | 2001-10-23 | Marlen Research Corporation | Method and apparatus for packaging meat |
US6457299B1 (en) * | 1998-04-21 | 2002-10-01 | Fehland Engineering Gmbh | Beverage-filling device |
DE202004020529U1 (de) * | 2003-03-21 | 2005-09-29 | Masek, Jan | Vorrichtung zur Erzeugung eines Vakuums |
US20060159809A1 (en) * | 2005-01-19 | 2006-07-20 | Myers Bigel Sibley & Sajovec, P.A. | Packaged products of mushrooms contained in a modified gas atmosphere and methods and apparatus for making the same |
WO2011077034A1 (fr) | 2009-12-23 | 2011-06-30 | Impress Group B.V. | Boîte de conserve métallique pour un produit alimentaire |
FR2960858A1 (fr) | 2010-06-03 | 2011-12-09 | Air Liquide | Procede pour la realisation d'une atmosphere controlee dans un recipient muni d'un couvercle |
FR2964949A1 (fr) | 2010-09-20 | 2012-03-23 | Bonduelle Sa Ets | Procede de conditionnement de produits alimentaires, non liquides, en particulier sensibles a l'oxygene, dans un conteneur sous faible teneur en oxygene. |
FR2979327A1 (fr) | 2011-08-26 | 2013-03-01 | Air Liquide | Procede pour la realisation d'atmospheres controlees sans confinement sur des lignes de conditionnement automatisees |
US20140013704A1 (en) * | 2011-01-27 | 2014-01-16 | Cfs Germany Gmbh | Packaging machine and method for producing evacuated and/or gassed packagings |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2684215B2 (ja) * | 1989-05-02 | 1997-12-03 | 日本真空技術株式会社 | 農産物輸送用容器 |
US5246114A (en) * | 1991-08-12 | 1993-09-21 | Underwood John P | Preserving package and method of storage |
DE10343281A1 (de) * | 2003-09-18 | 2005-04-21 | Adelholzener Alpenquellen Gmbh | Verfahren und Vorrichtung zur Herstellung und Abfüllung von mit Sauerstoff angereicherten Flüssigkeiten |
FR2884225B1 (fr) * | 2005-04-12 | 2007-06-22 | Airlessystems Soc Par Actions | Procede de remplissage et dispositif de remplissage d'un reservoir de volume utile variable |
HUE035235T2 (hu) * | 2010-08-06 | 2018-05-02 | Hospira Australia Pty Ltd | Eljárás és rendszer fiolák elõállítására |
CN205397012U (zh) * | 2016-03-03 | 2016-07-27 | 中国农业科学院农产品加工研究所 | 一种石斛存放装置及系统 |
-
2019
- 2019-02-28 FR FR1902077A patent/FR3093328B1/fr active Active
-
2020
- 2020-02-28 BR BR112021017008A patent/BR112021017008A2/pt unknown
- 2020-02-28 CN CN202080016559.7A patent/CN113646240B/zh active Active
- 2020-02-28 MX MX2021010405A patent/MX2021010405A/es unknown
- 2020-02-28 CA CA3130612A patent/CA3130612A1/fr active Pending
- 2020-02-28 WO PCT/FR2020/050403 patent/WO2020174202A1/fr unknown
- 2020-02-28 JP JP2021550689A patent/JP2022523536A/ja active Pending
- 2020-02-28 EP EP20725795.7A patent/EP3931126A1/fr active Pending
- 2020-02-28 AU AU2020230038A patent/AU2020230038A1/en not_active Abandoned
-
2021
- 2021-08-13 ZA ZA2021/05802A patent/ZA202105802B/en unknown
- 2021-08-23 IL IL285812A patent/IL285812A/en unknown
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6305149B1 (en) * | 1993-11-18 | 2001-10-23 | Marlen Research Corporation | Method and apparatus for packaging meat |
WO1995031375A1 (fr) | 1994-05-17 | 1995-11-23 | Sanfilippo James J | Systeme et procede de remplissage et scellement de recipients en atmosphere controlee |
EP0761541A1 (fr) | 1995-08-25 | 1997-03-12 | Praxair Technology, Inc. | Système de purge turbo-laminaire pour machine d'emballage |
EP0806354A1 (fr) | 1996-05-07 | 1997-11-12 | James J. Sanfilippo | Dispositif et procédé pour remplacer l'atmosphère à l'intérieur d'un récipient par une atmosphère controlée |
US6457299B1 (en) * | 1998-04-21 | 2002-10-01 | Fehland Engineering Gmbh | Beverage-filling device |
DE202004020529U1 (de) * | 2003-03-21 | 2005-09-29 | Masek, Jan | Vorrichtung zur Erzeugung eines Vakuums |
US20060159809A1 (en) * | 2005-01-19 | 2006-07-20 | Myers Bigel Sibley & Sajovec, P.A. | Packaged products of mushrooms contained in a modified gas atmosphere and methods and apparatus for making the same |
WO2011077034A1 (fr) | 2009-12-23 | 2011-06-30 | Impress Group B.V. | Boîte de conserve métallique pour un produit alimentaire |
FR2960858A1 (fr) | 2010-06-03 | 2011-12-09 | Air Liquide | Procede pour la realisation d'une atmosphere controlee dans un recipient muni d'un couvercle |
FR2964949A1 (fr) | 2010-09-20 | 2012-03-23 | Bonduelle Sa Ets | Procede de conditionnement de produits alimentaires, non liquides, en particulier sensibles a l'oxygene, dans un conteneur sous faible teneur en oxygene. |
US20140013704A1 (en) * | 2011-01-27 | 2014-01-16 | Cfs Germany Gmbh | Packaging machine and method for producing evacuated and/or gassed packagings |
FR2979327A1 (fr) | 2011-08-26 | 2013-03-01 | Air Liquide | Procede pour la realisation d'atmospheres controlees sans confinement sur des lignes de conditionnement automatisees |
Also Published As
Publication number | Publication date |
---|---|
CA3130612A1 (fr) | 2020-09-03 |
BR112021017008A2 (pt) | 2021-11-09 |
FR3093328A1 (fr) | 2020-09-04 |
MX2021010405A (es) | 2021-11-17 |
FR3093328B1 (fr) | 2021-02-19 |
EP3931126A1 (fr) | 2022-01-05 |
AU2020230038A1 (en) | 2021-09-16 |
US20220144464A1 (en) | 2022-05-12 |
ZA202105802B (en) | 2023-05-31 |
JP2022523536A (ja) | 2022-04-25 |
CN113646240A (zh) | 2021-11-12 |
IL285812A (en) | 2021-10-31 |
CN113646240B (zh) | 2023-10-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2509874B1 (fr) | Procédé de conditionnement de produits alimentaires, non liquides, en particulier sensibles à l'oxygène, dans un conteneur sous faible teneur en oxygène | |
WO2011067393A1 (fr) | Systeme de protection pour dispositif de traitement de recipients par faisceau d'electrons | |
FR2485502A1 (fr) | Procede et appareil de remplissage de recipients par un liquide, notamment des boissons, avec recuperation d'un gaz inerte | |
EP2226252B1 (fr) | Procédé et installation pour le conditionnement sous vide en continu de produits alimentaires | |
EP0164277B1 (fr) | Procédé et installation d'obtention d'un produit alimentaire aqueux emballé sous vide profond | |
EP2501616B1 (fr) | Procédé de conditionnement d'un produit liquide | |
EP3931126A1 (fr) | Procede et installation de conditionnement de produits, ainsi que que procede d'obtention dune installation et conteneur | |
RU2789395C1 (ru) | Способ и установка для упаковки продуктов, способ получения установки и контейнер | |
WO2001026970A1 (fr) | Machine de remplissage et de scellage de recipients | |
WO2020174201A1 (fr) | Boite de conserve | |
US12030678B2 (en) | Method for packaging products | |
EP1370145B1 (fr) | Procede de decontamination microbiologique de produits pulverulents | |
EP1553159B1 (fr) | Procédé de malaxage d'une pâte d'olive | |
EP2288689B1 (fr) | Procede de conditionnement de levure seche | |
FR2687127A1 (fr) | Procede et installation de conditionnement de produits alimentaires humides. | |
WO2002003781A1 (fr) | Méthode et équipement pour le remplissage, la pesée et le pressage sous vide de fromage a pâte ferme ou demi-ferme | |
FR3110562A1 (fr) | Alimentateur pour le conditionnement de compositions alimentaires | |
FR2987823A1 (fr) | Procede d'inertage d'un produit pulverulent conditionne dans un sac et dispositif pour sa mise en oeuvre | |
WO1996006010A1 (fr) | Dispositif pour un procede de remplissage aseptique d'un emballage et processeur utilise | |
WO2016116695A1 (fr) | Dispositif pour réaliser des essais de fermentation avec un petit volume de moût | |
FR2701923A1 (fr) | Dispositif global de remplissage aseptique par des processeurs à alvéoles. | |
FR2816914A1 (fr) | Dispositif de traitement a la chaine de produits sous atmosphere controlee et procede de traitement afferent | |
CA2414959A1 (fr) | Methode et equipement pour le remplissage, la pesee et le pressage sous vide de fromage a pate ferme ou demi-ferme | |
FR2809376A1 (fr) | Procede et dispositif de remplissage sous vide de contenants en produits liquides ou pateux | |
BE652800A (fr) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20725795 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 3130612 Country of ref document: CA |
|
ENP | Entry into the national phase |
Ref document number: 2021550689 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112021017008 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 2020230038 Country of ref document: AU Date of ref document: 20200228 Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 2020725795 Country of ref document: EP Effective date: 20210928 |
|
ENP | Entry into the national phase |
Ref document number: 112021017008 Country of ref document: BR Kind code of ref document: A2 Effective date: 20210827 |