EP0128795B1 - Packaging, especially for foodstuffs - Google Patents

Packaging, especially for foodstuffs Download PDF

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Publication number
EP0128795B1
EP0128795B1 EP84401011A EP84401011A EP0128795B1 EP 0128795 B1 EP0128795 B1 EP 0128795B1 EP 84401011 A EP84401011 A EP 84401011A EP 84401011 A EP84401011 A EP 84401011A EP 0128795 B1 EP0128795 B1 EP 0128795B1
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EP
European Patent Office
Prior art keywords
foodstuff
packaging according
exudate
improved packaging
sodium
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
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EP84401011A
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German (de)
French (fr)
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EP0128795A1 (en
Inventor
Jean Gabriel Lèon
François Loevenbruck
Jean René Troadec
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Vesten AG Te Stans Zwitserland Ste
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CODIMER
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Priority to AT84401011T priority Critical patent/ATE32689T1/en
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    • 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
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/264—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing liquids
    • B65D81/265—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing liquids the absorbent being placed beneath a false bottom
    • 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
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/261—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for draining or collecting liquids without absorbing them
    • B65D81/262—Rigid containers having false bottoms provided with passages for draining and receiving liquids

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Wrappers (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)

Abstract

An improved packing more particularly for foodstuffs of the type composed of a receptacle sealingly closed by a removable lid and comprising therein a perforated separation wall in form of a grid disposed substantially in parallel to the bottom of said receptacle thereby to provide a two-section separation of the latter such that the upper compartment is reserved for lodging the foodstuff to be preserved, with the lower compartment being adapted to receive an absorbent material intended for absorbing the exsudate from said foodstuff, wherein there is provided on, or in, said absorbent material such material capable, under the effect of water from the exsudate, of releasing an inert gas in such quantity as to compensate for the loss of pressure within the receptacle on the one hand, and on the other hand, capable of creating such an atmosphere as to prevent formation of secondary noxious products, and compensating for the loss of some of the constitutive components of the foodstuff carried away with the exsudate.

Description

La présente invention concerne un emballage perfectionné destiné plus particulièrement aux denrées alimentaires, cet emballage étant composé d'une barquette obturée hermétiquement par un opercule amovible.The present invention relates to an improved packaging intended more particularly for foodstuffs, this packaging being composed of a tray sealed hermetically by a removable cover.

De façon plus particulière, le type de barquette en question destinée à prolonger sensiblement le délai de conservation des denrées, c'est-à-dire de repousser la date limite de vente, comporte en son sein une paroi de séparation ajourée formant « grille disposée sensiblement parallèle au fond de la barquette, assurant ainsi une séparation bipartite de cette dernière, de manière que le compartiment supérieur soit réservé au logement de la denrée alimentaire à conserver, le compartiment inférieur éventuellement divisé en plusieurs volumes étant destiné à la réception d'une matière, de préférence sous forme de feuille, ayant pour but d'absorber l'exsudat de ladite denrée alimentaire.More particularly, the type of tray in question intended to significantly extend the period for storing foodstuffs, that is to say to extend the expiry date for sale, has within it an openwork dividing wall forming a "grid arranged substantially parallel to the bottom of the tray, thus ensuring a bipartite separation of the latter, so that the upper compartment is reserved for housing the foodstuff to be preserved, the lower compartment possibly divided into several volumes being intended for the reception of a material, preferably in sheet form, intended to absorb the exudate of said foodstuff.

Ce type de barquettes est bien connu et leur conception ou réalisation est due principalement au fait que les denrées alimentaires d'origine animale telles que le poisson, la viande, les coquillages et crustacés, laissent échapper un exsudat pouvant, à l'occasion de contacts intempestifs ou lors de la conservation de ses denrées, devenir porteur de germes ou autres produits et organismes nocifs pour l'homme.This type of trays is well known and their design or production is mainly due to the fact that food of animal origin such as fish, meat, shellfish and crustaceans, let escape an exudate which can, on the occasion of contacts untimely or when storing its food, become a carrier of germs or other products and organisms harmful to humans.

A titre d'exemple, le botulisme est un empoisonnement grave produit par la toxine d'un bacille anaérobie, c'est-à-dire tirant les éléments nécessaires à sa vie des substances organiques qu'il décompose.As an example, botulism is a serious poisoning produced by the toxin of an anaerobic bacillus, that is to say drawing the elements necessary for its life from the organic substances which it breaks down.

Ainsi, la commercialisation de denrées alimentaires n'est possible que dans un certain délai, dont le terme appelé « date limite de vente doit être repoussé sans altération des denrées afin de satisfaire aux exigences d'une alimentation saine mais aussi à la distribution économique. Cette date limite de vente est portée sur la barquette.Thus, the marketing of foodstuffs is only possible within a certain period, the term of which, called the “sales deadline, must be postponed without altering the foodstuffs in order to meet the requirements of a healthy diet but also for economic distribution. This sales deadline is indicated on the tray.

Il est aussi connu de commercialiser des denrées fraîches dans des barquettes hermétiquement closes de ce type, dans lesquelles a été injecté un gaz inerte ou un mélange de gaz tels que l'anhydride carbonique et l'oxygène, pour favoriser leur conservation par freinage de leur dégradation organique, ces barquettes étant en général conservées à une basse température. Le rôle de la matière absorbante logée dans le compartiment inférieur est d'absorber l'exsudat de manière à éviter que les denrées alimentaires soient au contact de ce dernier (voir brevet GB n° 863.095). Ainsi la fraîcheur de la denrée est conservée, tout risque de contamination par cet exsudat étant éliminé, ce qui permet de prolonger sensiblement la date limite de vente.It is also known to market fresh foodstuffs in hermetically sealed trays of this type, into which an inert gas or a mixture of gases such as carbon dioxide and oxygen has been injected, to promote their preservation by braking their organic degradation, these trays being generally stored at a low temperature. The role of the absorbent material housed in the lower compartment is to absorb the exudate so as to prevent foodstuffs from being in contact with the latter (see GB patent No. 863,095). Thus the freshness of the food is preserved, any risk of contamination by this exudate being eliminated, which makes it possible to appreciably extend the deadline for sale.

Bien que ce type de barquette puisse donner satisfaction, il n'empêche pas le développement possible de cultures productrices de produits secondaires nocifs sur la matière absorbante lorsque, après séchage et mise en place dans la barquette, elle est mouillée par l'exsudat.Although this type of tray may be satisfactory, it does not prevent the possible development of cultures producing harmful by-products on the absorbent material when, after drying and placing in the tray, it is wetted with exudate.

On a proposé aussi de prévoir à l'intérieur d'emballages destinés à la conservation de la fraîcheur de produits alimentaires, des agents capables d'y absorber l'oxygène et/ou d'engendrer du gaz carbonique empêchant ainsi l'altération des aliments. De tels agents et emballages sont décrits par exemple dans le brevet français n° 2.394.988. Toutefois, la solution préconisée dans ce document ne résoud pas le problème de la lutte contre ou de l'inhibition des micro-organismes anaérobie qui constituent eux-mêmes des éléments nocifs à une bonne conservation ou de la lutte contre la perte par entraînement par l'exsudat de certains desdits composants constitutifs desdites denrées alimentaires.It has also been proposed to provide, inside packages intended for the preservation of the freshness of food products, agents capable of absorbing oxygen therein and / or of generating carbon dioxide thus preventing food spoilage. . Such agents and packaging are described, for example, in French patent No. 2,394,988. However, the solution recommended in this document does not solve the problem of combating or inhibiting anaerobic microorganisms which themselves constitute harmful elements for good preservation or of combating loss by entrainment by the exudate from some of said constituent components of said food.

Par ailleurs, les diverses atmosphères gazeuses qui sont actuellement réalisées sont, au cours du temps, absorbées par les denrées alimentaires, ce qui conduit à un abaissement de la pression interne régnant dans ladite barquette, se traduisant par une déformation de celle-ci.Furthermore, the various gaseous atmospheres which are currently produced are, over time, absorbed by the foodstuffs, which leads to a lowering of the internal pressure prevailing in said tray, resulting in a deformation thereof.

La présente invention a donc pour objet d'une part d'empêcher la formation des-produits secondaires nocifs dont il est question ci-dessus et, d'autre part, de maintenir, au cours du temps, la pression relativement constante des gaz à l'intérieur de l'emballage hermétiquement clos, et de créer une atmosphère capable de compenser la perte par entraînement par l'exsudat de certains desdits composants constitutifs desdites denrées alimentaires.The object of the present invention is therefore, on the one hand, to prevent the formation of the harmful by-products mentioned above and, on the other hand, to maintain, over time, the relatively constant pressure of the gases at inside the hermetically sealed package, and to create an atmosphere capable of compensating for the loss by entrainment by the exudate of some of said constituent components of said foodstuffs.

Pour ce faire, l'invention prévoit un emballage perfectionné destiné plus particulièrement aux denrées alimentaires du type composé d'une barquette obturée hermétiquement par un opercule amovible et comportant en son sein une paroi de séparation ajourée formant grille disposée sensiblement parallèle au fond de ladite barquette assurant ainsi une séparation bipartite de cette dernière, de manière que le compartiment supérieur soit réservé au logement de la denrée alimentaire à conserver, le compartiment inférieur étant destiné à la réception d'une matière absorbante ayant pour but d'absorber l'exsudat de ladite denrée alimentaire (connu de GB-A-863 095), emballage caractérisé par le fait qu'il est prévu sur ou dans ladite matière absorbante, un matériau susceptible, sous l'effet de l'eau de l'exsudat, de dégager un gaz inerte en une quantité capable de compenser la perte de pression à l'intérieur de la barquette d'une part et, d'autre part, un composé particulaire renfermant un des composants de la denrée alimentaire du type chlorure de sodium et/ou oligo-éléments et susceptible d'être entraîné par le flux dudit gaz ainsi libéré et capable de créer une atmosphère de nature à empêcher la formation de produits secondaires nocifs et à compenser la perte par entraînement par l'exsudat de certains desdits composants constitutifs desdites denrées alimentaires.To do this, the invention provides an improved packaging intended more particularly for foodstuffs of the type composed of a tray sealed hermetically by a removable cover and comprising within it an openwork partition wall forming a grid disposed substantially parallel to the bottom of said tray. thus ensuring a bipartite separation of the latter, so that the upper compartment is reserved for housing the foodstuff to be preserved, the lower compartment being intended for the reception of an absorbent material having the purpose of absorbing the exudate of said foodstuff (known from GB-A-863 095), packaging characterized in that there is provided on or in said absorbent material, a material capable, under the effect of the water of the exudate, of releasing a inert gas in an amount capable of compensating for the pressure loss inside the tray on the one hand and, on the other hand, a particulate compound containing one of the comp daring of the foodstuff of the sodium chloride and / or trace element type and capable of being entrained by the flow of said gas thus released and capable of creating an atmosphere such as to prevent the formation of harmful by-products and to compensate for the loss by entrainment by the exudate of some of said constituent components of said foodstuffs.

De façon avantageuse, le matériau en question est à base d'une substance dégageant du C02 et/ou de l'oxygène, dont le rôle est de maintenir la pression désirée à l'intérieur de la barquette.Advantageously, the material in question is based on a substance releasing C0 2 and / or oxygen, the role of which is to maintain the desired pressure inside the tray.

De préférence, le matériau en question renferme un carbonate et/ou un persel en combinaison avec un acide organique non toxique.Preferably, the material in question contains a carbonate and / or a persalt in combination with a non-toxic organic acid.

Comme exemple, on citera comme carbonate, le carbonate ou bicarbonate de sodium de qualité alimentaire, comme persel, le percarbonate ou le perborate de sodium et, comme acide organique, l'acide citrique.As an example, mention may be made, as carbonate, of sodium carbonate or sodium bicarbonate of food grade, as parsley, percarbonate or sodium perborate and, as organic acid, citric acid.

En outre, ledit matériau renferme comme substance capable de créer l'atmosphère désirée et d'être entraînée par le gaz dégagé par ledit matériau, un des composants de la denrée alimentaire entraîné par l'exsudat. Comme exemple, on citera le chlorure de sodium ou un des oligo-éléments contenus dans ladite denrée alimentaire.In addition, said material contains as a substance capable of creating the desired atmosphere and of being entrained by the gas given off by said material, one of the components of the foodstuff entrained by the exudate. As an example, mention may be made of sodium chloride or one of the trace elements contained in said foodstuff.

Avantageusement, ledit matériau se présentera sous forme de plaques, pastilles, fragments, copeaux, infusettes ou sous forme pulvérulente.Advantageously, said material will be in the form of plates, pellets, fragments, shavings, teabags or in powder form.

Suivant encore une autre caractéristique, ledit matériau sera associé audit composé particulaire et répondra avantageusement à la formule 50% de chlorure de sodium, 25 % d'acide citrique et 25 % de carbonate de sodium.According to yet another characteristic, said material will be associated with said particulate compound and will advantageously correspond to the formula 50% sodium chloride, 25% citric acid and 25% sodium carbonate.

Suivant une variante, cette formule comprendra 33,5 % de chlorure de sodium, 33,5 % d'acide citrique, 16,5 % d'un percarbonate et 16,5 % d'un perborate.According to a variant, this formula will comprise 33.5% of sodium chloride, 33.5% of citric acid, 16.5% of a percarbonate and 16.5% of a perborate.

Bien entendu, un tel emballage pourra être appliqué avec intérêt à la conservation des denrées alimentaires du type viande, poisson, coquillages, crustacés.Of course, such packaging can be applied with interest to the preservation of foodstuffs of the meat, fish, shellfish and crustacean type.

D'autres avantages et caractéristiques de l'invention ressortiront plus clairement de la description qui va suivre, faite en regard des dessins annexés illustrant à titre purement explicatif une barquette à laquelle on peut appliquer le perfectionnement selon l'invention.Other advantages and characteristics of the invention will emerge more clearly from the description which follows, made with reference to the appended drawings illustrating for purely explanatory purposes a tray to which the improvement according to the invention can be applied.

En se référant à ces dessins, la figure 1 présente un exemple d'emballage en perspective cavalière avec arrachement partiel.Referring to these drawings, Figure 1 shows an example of packaging in perspective with partial cutaway.

La figure 2 est une vue en coupe au droit des ergots de la barquette de l'emballage présenté à la figure 1.FIG. 2 is a cross-sectional view to the right of the lugs of the container of the packaging presented in FIG. 1.

La figure 3 est une vue en coupe d'un autre mode de réalisation possible de l'emballage.Figure 3 is a sectional view of another possible embodiment of the package.

La figure 4 est une vue de dessus d'une grille de séparation présente dans l'emballage.Figure 4 is a top view of a separation grid present in the package.

Sur la figure 1, on peut voir un emballage composé d'une barquette 1, d'une grille de séparation 2, d'une feuille de matière 3 absorbant l'exsudat de la denrée alimentaire posée sur la grille de séparation (non représentée), fermée hermétiquement par un opercule 4. La grille de séparation 2 est une plaque comportant des nervures 5 et des trous 6. Elle est enchâssée dans la barquette 1 grâce à quatre ergots 7 saillants vers l'intérieur de la barquette et disposés deux à deux sur ses parois latérales se faisant face. De ce fait, la grille de séparation 2 qui comporte quatre reliefs saillants 8 ayant la forme de plots, ne peut s'échapper du fond de la barquette 1 même dans l'hypothèse d'un retournement de celle-ci. En outre, le plots 8 maintiennent la feuille de matière 3 absorbant l'exsudat de la denrée alimentaire, plaquée sur le fond de la barquette 2. Cette feuille de matière absorbante 3 pénètre dans une rigole périphérique 9 de drainage de l'exsudat, ménagée autour d'un étagement du fond de la barquette. Elle a une forme sensiblement rectangulaire avec des angles rognés pour s'adapter avec un jeu minimum dans le compartiment inférieur de la barquette.In Figure 1, we can see a package consisting of a tray 1, a separation grid 2, a sheet of material 3 absorbing the exudate of the foodstuff placed on the separation grid (not shown) , hermetically closed by a cover 4. The separation grid 2 is a plate comprising ribs 5 and holes 6. It is embedded in the tray 1 by means of four lugs 7 projecting towards the inside of the tray and arranged in pairs on its side walls facing each other. Therefore, the separation grid 2 which has four protruding reliefs 8 in the form of studs, can not escape from the bottom of the tray 1 even in the event of a reversal thereof. In addition, the studs 8 hold the sheet of material 3 absorbing the exudate of the foodstuff, pressed against the bottom of the tray 2. This sheet of absorbent material 3 enters a peripheral channel 9 for draining the exudate, provided around a tier at the bottom of the tray. It has a substantially rectangular shape with cropped angles to adapt with minimum play in the lower compartment of the tray.

La figure 2 qui présente une coupe d'une barquette 1 fait apparaître les raidisseurs 10 et les ergots 7. Les raidisseurs verticaux 10 sont obtenus par un formage adapté des parois latérales de la barquette. Le fond de la barquette 1 comporte un étagement 11 qui se. raccorde aux parois latérales 12 de la barquette 1 par une rigole périphérique 9. Sur les rebords supérieurs 13 parallèles au fond de la barquette 1 peut être soudé un opercule 4.Figure 2 which shows a section of a tray 1 shows the stiffeners 10 and the pins 7. The vertical stiffeners 10 are obtained by a suitable forming of the side walls of the tray. The bottom of the tray 1 has a step 11 which is. connects to the side walls 12 of the tray 1 by a peripheral channel 9. On the upper edges 13 parallel to the bottom of the tray 1 can be welded a cover 4.

On distingue à la figure 3 les raidisseurs 10 d'une barquette 1 ne possédant pas d'ergots latéraux comme précédemment montré aux figures 1 et 2. Le fond de la barquette possède un double étagement :'d'une part l'étagement 11 au contact duquel vient sur la face intérieure de la barquette 1 la feuille de matière absorbante 3 percée en son centre pour permettre le passage de l'épaulement central 14 du fond de la barquette 1. Sur la face supérieure de cet épaulement est collée une grille de séparation 2 qui présente, comme expliqué ci-après, des plots 8 pour maintenir plaquée la feuille de matière absorbante 3 au fond de la barquette 1.We distinguish in Figure 3 the stiffeners 10 of a tray 1 having no lateral pins as previously shown in Figures 1 and 2. The bottom of the tray has a double tier: 'on the one hand the tier 11 at contact from which comes on the inner face of the tray 1 the sheet of absorbent material 3 pierced in its center to allow the passage of the central shoulder 14 of the bottom of the tray 1. On the upper face of this shoulder is stuck a grid of separation 2 which has, as explained below, studs 8 for holding the sheet of absorbent material 3 pressed against the bottom of the tray 1.

A la figure 4 est montrée, vue de dessus, une grille de séparation 2 avec ses nervures 5 et quatre plots 8 saillants de l'autre côté de la grille de séparation 2. Les nervures 5 présentent une surface plane centrale 15 sensiblement parallèle au plan défini par le corps 16 de la grille de séparation 2 percée de trous 6 pour assurer l'écoulement de l'exsudat vers la feuille de matière devant l'absorber.In Figure 4 is shown, seen from above, a separation grid 2 with its ribs 5 and four studs 8 projecting from the other side of the separation grid 2. The ribs 5 have a central flat surface 15 substantially parallel to the plane defined by the body 16 of the separation grid 2 pierced with holes 6 to ensure the flow of the exudate towards the sheet of material before absorbing it.

Ces surfaces planes centrales 15 peuvent être collées à la feuille de matière absorbante 3 qui est elle-même collée partiellement sur le fond de la barquette 1.These central flat surfaces 15 can be bonded to the sheet of absorbent material 3 which is itself partially bonded to the bottom of the tray 1.

Il va de soi que lorsque l'on n'utilise pas cette méthode de collage, les plots 8 peuvent présenter toute forme adaptée conique ou hémisphérique par exemple.It goes without saying that when this bonding method is not used, the studs 8 can have any suitable conical or hemispherical shape for example.

On remarque que dans tous les modes de réalisation décrits, deux caractéristiques sont essentielles si la barquette 1 vient à s'incliner : il y a toujours absorption de l'exsudat par la feuille de matière absorbante 3 qui vient au contact des bords 12 de la barquette 1 et, la feuille de matière absorbante 3 ne peut venir au contact de la denrée alimentaire que contient la barquette du fait des plots 8 de la grille de séparation 2 qui empêche tout contact de la denrée alimentaire avec la feuille de matière absorbante 3 même par les trous 6 de la grille de séparation 2.It is noted that in all the embodiments described, two characteristics are essential if the tray 1 is to tilt: there is always absorption of the exudate by the sheet of absorbent material 3 which comes into contact with the edges 12 of the tray 1 and, the sheet of absorbent material 3 cannot come into contact with the foodstuff contained in the tray due to the studs 8 of the separation grid 2 which prevents any contact of the foodstuff with the sheet of absorbent material 3 itself through the holes 6 of the separation grid 2.

Conformément à l'invention, la feuille de matière absorbante 3 comporte en son sein ou à sa surface des plaques, pastilles, fragments, copeaux, infusettes ou une poudre essentiellement constitués d'un composé capable de dégager un gaz inerte tel que le C02 et/ou de l'oxygène sous l'action de l'eau de l'exsudat en présence, avantageusement, d'un acide organique non toxique et une substance susceptible d'être entraînée par ledit gaz pour créer une atmosphère ou un brouillard au sein de la barquette du type décrit ci-dessus.According to the invention, the sheet of absorbent material 3 comprises within it or on its surface plates, pellets, fragments, chips, teabags or a powder essentially consisting of a compound capable of giving off an inert gas such as C0 2 and / or oxygen under the action of the water from the exudate in the presence, advantageously, of a non-toxic organic acid and a substance capable of being entrained by said gas to create an atmosphere or a mist at within the tray of the type described above.

C'est ainsi, par exemple, que dans le cas particulier où la denrée alimentaire est du poisson, ledit brouillard ou ladite atmosphère sera de préférence constitué par du chlorure de sodium pour compenser la perte de ce dernier au cours de l'exsudation dudit poisson. Il en résulte que le matériau absorbant contiendra du chlorure de sodium qui sera entraîné par exemple par l'anhydride carbonique formé grâce à la présence sur ou dans la feuille absorbante de carbonate ou de bicarbonate de sodium de qualité alimentaire et d'acide citrique. On pourra de même prévoir également un dégagement d'oxygène grâce à la présence par exemple d'un percarbonate et/ou d'un perborate.Thus, for example, in the particular case where the food is fish, said mist or said atmosphere will preferably be constituted by sodium chloride to compensate for the loss of the latter during the exudation of said fish. . As a result, the absorbent material will contain sodium chloride which will be entrained, for example, by the carbon dioxide formed by virtue of the presence on or in the absorbent sheet of food grade sodium carbonate or bicarbonate and citric acid. Likewise, oxygen can also be provided by the presence, for example, of a percarbonate and / or a perborate.

Comme exemple de formule entrant dans le cadre de l'invention, on citera une composition renfermant (en poids) 50% de chlorure de sodium, 25 % d'acide citrique, 25 % de carbonate de sodium ou 33,5 % de chlorure de sodium, 33,5 % d'acide citrique, 16,5 % de percarbonate et 16,5 % de perborate.As an example of a formula falling within the scope of the invention, there may be mentioned a composition containing (by weight) 50% sodium chloride, 25% citric acid, 25% sodium carbonate or 33.5% sodium chloride. sodium, 33.5% citric acid, 16.5% percarbonate and 16.5% perborate.

Ces formules pourront éventuellement être complétées en remplaçant une partie du chlorure de sodium par un sel ou un oligo-élément entrant dans la composition de la denrée alimentaire à conserver et qui est susceptible d'être entraîné par son exsudat.These formulas may possibly be supplemented by replacing part of the sodium chloride with a salt or a trace element entering into the composition of the foodstuff to be preserved and which is liable to be entrained by its exudate.

En procédant de la sorte conformément à l'invention, le dégagement gazeux que l'on obtient compense la perte de pression pouvant se produire à l'intérieur de la barquette, empêchant ainsi sa déformation et le sel ou l'oligo-élément entraîné par ledit dégagement gazeux d'une part, compense la perte des sels minéraux ou de l'oligo-élément entraîné dans l'exsudat et d'autre part, empêche la production nuisible de produits secondaires nocifs.By proceeding in this way in accordance with the invention, the gas evolution which is obtained compensates for the pressure loss which may occur inside the tray, thus preventing its deformation and the salt or trace element entrained by said gaseous release on the one hand, compensates for the loss of mineral salts or of the trace element entrained in the exudate and on the other hand, prevents the harmful production of harmful secondary products.

Claims (8)

1. Improved packaging intended particularly for foodstuffs consisting of a tub (1) hermetically sealed by a removable cover (4) and carrying in its interior a pierced separating partition (2) forming a grill disposed essentially parallel to the base of the said tub thus assuring a separation of the latter into two parts in such a manner that the upper compartment is reserved for housing the foodstuff to be conserved, the lower compartment being intended for holding an absorbant material (3) the purpose of which is to absorb the exudate from the said foodstuff, the packaging being characterized in that on or in the said absorbant material is provided on the one hand a substance which, under the action of the water of the exudate, is able to release an inert gas in a quantity capable of compensating for the loss in pressure inside the tub, and on the other hand a particular compound containing one of the constituents of the foodstuff of the type of chlorides of sodium and/or oligo-elements and capable of being entrained in the flux of the said gas thus liberated and able to create a natural atmosphere to inhibit the formation of harmful secondary products and to compensate for the loss by entrainment in the exudate of certain of the said constituents of the said foodstuffs.
2. Improved packaging according to claim 1 characterized in that the said material is based on a substance releasing C02 and or oxygen.
3. Improved packaging according to claim 1 or 2 characterized in that the said material includes a carbonate and/or a salt of a peracid in combination with a non-toxic organic acid.
4. Improved packaging according to claim 2 or 3 characterized in that the said carbonate and/or the said salt of a peracid is chosen from the carbonates or bicarbonates of sodium, and the percarbonates or perborates of sodium, and the said organic acid is citric acid.
5. Improved packaging according to any one of claims 1 to 4 characterized in that the said material is in the form of sheets, pellets, fragments, shavings, sachets or in a powdered form.
6. Improved packaging according to any one of claims 1 to 5. characterized in that the said material is associated with the said particular compound in accordance with the formula 50 % sodium chloride, 25 % citric acid and 25 % sodium carbonate, by weight.
7. Improved packaging according to any one of claims 1 to 5 characterized in that the said material is associated with the particular compound in accordance with the formula 33.5% sodium chloride, 33.5 % citric acid, 16.5 % percarbonate and 16.5 % perborate, by weight.
8. Application of the packaging according to any of claims 1 to 7 for the conservation of food stuffs of the types meat, fish, shell fish and crustaceans.
EP84401011A 1983-05-18 1984-05-17 Packaging, especially for foodstuffs Expired EP0128795B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84401011T ATE32689T1 (en) 1983-05-18 1984-05-17 PACKAGING PARTICULARLY FOR FOOD.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8308184 1983-05-18
FR8308184A FR2546138B1 (en) 1983-05-18 1983-05-18 PACKAGING MOST PARTICULARLY FOR FOODSTUFFS

Publications (2)

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EP0128795A1 EP0128795A1 (en) 1984-12-19
EP0128795B1 true EP0128795B1 (en) 1988-03-02

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US (1) US4664922A (en)
EP (1) EP0128795B1 (en)
AT (1) ATE32689T1 (en)
DE (1) DE3469508D1 (en)
DK (1) DK161824C (en)
ES (1) ES288261Y (en)
FR (1) FR2546138B1 (en)
NO (1) NO841971L (en)

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Also Published As

Publication number Publication date
DK161824C (en) 1992-02-10
NO841971L (en) 1984-11-19
US4664922A (en) 1987-05-12
ATE32689T1 (en) 1988-03-15
DK243884A (en) 1984-11-19
EP0128795A1 (en) 1984-12-19
DK161824B (en) 1991-08-19
FR2546138B1 (en) 1986-08-08
DK243884D0 (en) 1984-05-17
ES288261Y (en) 1986-07-16
FR2546138A1 (en) 1984-11-23
DE3469508D1 (en) 1988-04-07
ES288261U (en) 1985-12-16

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