FR2582624A3 - Isothermal bag for deep-frozen products in particular, and its method of manufacture. - Google Patents

Isothermal bag for deep-frozen products in particular, and its method of manufacture. Download PDF

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Publication number
FR2582624A3
FR2582624A3 FR8508430A FR8508430A FR2582624A3 FR 2582624 A3 FR2582624 A3 FR 2582624A3 FR 8508430 A FR8508430 A FR 8508430A FR 8508430 A FR8508430 A FR 8508430A FR 2582624 A3 FR2582624 A3 FR 2582624A3
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France
Prior art keywords
sheath
bag
insulating material
strips
walls
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR8508430A
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French (fr)
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FR2582624B3 (en
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to FR8508430A priority Critical patent/FR2582624B3/en
Priority to FR8513850A priority patent/FR2587302B2/en
Publication of FR2582624A3 publication Critical patent/FR2582624A3/en
Application granted granted Critical
Publication of FR2582624B3 publication Critical patent/FR2582624B3/en
Expired legal-status Critical Current

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Classifications

    • 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
    • B65D81/38—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 with thermal insulation
    • B65D81/3888—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 with thermal insulation wrappers or flexible containers, e.g. pouches, bags
    • B65D81/3897—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 with thermal insulation wrappers or flexible containers, e.g. pouches, bags formed of different materials, e.g. laminated or foam filling between walls
    • 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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/04—Bags or like containers made of paper and having structural provision for thickness of contents with multiple walls

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)

Abstract

The invention relates to the technical sector of preservation and packaging. The isothermal bag for deep-frozen products in particular is constituted by a cover 1 made of plastic material inside of which is disposed an insulating material 2; the said cover having on the same face transverse strips of elements 3 which are self-gripping on the walls of the said cover and on the insulating material and ensuring, after folding the cover into two, the closing and internal thermal sealing of the bag; connecting lines being provided on the longitudinal edges of the bag.

Description

L invention a pour objet un sac lsothermique pour produits surgelés en particulier et son procédé de fabrication. The subject of the invention is an thermal bag for frozen products in particular and its manufacturing process.

L invention se rattache au secteur technique de la conservation et de l'emballage. The invention relates to the technical sector of conservation and packaging.

Ln assiste depuis quelques années au développement considérable de la vente des produits surgelés dans les magasins, suite à de nouvelles habitudes des consommateurs, à amélioration des techniques pour assurer une bonne conservation de produits et le maintien de leur qualité nutritive. Si de très nombreuses précautions ont été prises dans le circuit dit "de la chaîne du froid" on constate que le consommateur n: est pas équipé ou très mal lorsqu'il achète les produits en les sortant de l'enceinte froide de stockages à la phase de restockiage dans un congélateur personnel ou appareil similaire.Très souvent un long délai de transport et d'attente, une heure parfois plus s écoule de sorte que par la température ambiante le produit a tendance a se réchauffer. Outre l'inconvénient découlement d'eau, il est notoire que la recongélation de produits surgelés provoque une modification de la qualité nutritive des produits. Ln has been witnessing for a few years the considerable development of the sale of frozen products in stores, following new habits of consumers, improvement of techniques to ensure good preservation of products and maintenance of their nutritional quality. If very many precautions have been taken in the so-called "cold chain" circuit, it can be seen that the consumer is not equipped or very poorly when buying the products by taking them out of the cold storage enclosure. restocking phase in a personal freezer or similar device. Very often a long delay in transport and waiting, an hour sometimes more elapses so that by room temperature the product tends to heat up. In addition to the drawback of water drawback, it is known that refreezing frozen products causes a change in the nutritional quality of the products.

Four résoudre le problème pose, certains ont pensé réaliser des sacs isothermiques étanches. A la connaissance du deposant, ces sacs présentent des inconvènients, tantôt au niveau d'une insuffisance d'isolation thermique, tantôt au niveau de la fermeture des sacs souvent peu pratique et nécessitant des manipulations particulières par les poignées, ou sont dun cotit de revient élevé. To solve the problem posed, some have thought of making waterproof insulated bags. To the knowledge of the depositor, these bags have drawbacks, sometimes at the level of insufficient thermal insulation, sometimes at the closure of the bags often impractical and requiring special manipulations by the handles, or are cost Student.

Le but recherché selon l'invention était de remédier å ces inconvenients, en proposant un sac isothermique dune grande fiabilité d'utilisation, d'un coût de revient très réduit.  The aim sought after according to the invention was to remedy these drawbacks, by proposing an isothermal bag of great reliability of use, with a very reduced cost price.

Selon une premiere caractéristique, le sac isotherme est constitué par une gaine en matériau plastique à l'intérieur de laquelle est disposé un matériau isolant (2), ladite gaine présentant sur la mme face des bandes transversales d'éléments auto-agrippants fixes aux parois de ladite gaine et au matériau isolant et assurant après pliage de la gaine en deux, la fermeture et l'étanchéité thermique intérieure du sac, des lignes de liaison étant prévues sur les bordures longitudinales du sac. According to a first characteristic, the insulated bag consists of a sheath made of plastic material inside which an insulating material (2) is disposed, said sheath having on the same face transverse strips of self-gripping elements fixed to the walls of said sheath and to the insulating material and ensuring, after folding the sheath in two, the closing and the internal thermal sealing of the bag, connecting lines being provided on the longitudinal edges of the bag.

Pour fixer l'objet de l'invention d'une manière non limitative aux figures du dessin où
La figure 1 est une vue en perspective du sac obtenu selon lUinvention. To fix the subject of the invention in a nonlimiting manner to the figures of the drawing where
Figure 1 is a perspective view of the bag obtained according to the invention.

Les figures 2 à 5 sont des vues illustrant les différentes phases de fabrication du sac. Figures 2 to 5 are views illustrating the different phases of manufacturing the bag.

La figure 6 est une vue en coupe longitudinale du sac obtenu selon l'invention. Figure 6 is a longitudinal sectional view of the bag obtained according to the invention.

La figure 7 est une vue d'un sac comprenant des compartiments pour le positionnement intérieur des bouteilles ou autres produits similaires. Figure 7 is a view of a bag comprising compartments for the internal positioning of bottles or other similar products.

Rfin de rendre plus concret l'objet de l'invention, on le décrit maintenant dune manière non limitative illustrée aux figures du dessin. In order to make the object of the invention more concrete, it is now described in a nonlimiting manner illustrated in the figures of the drawing.

Le sac isotherme selon l'invention est réalisé a partir d'une gaine en matière plastique (1) déroulée en longueur et entre les parois (la - lb) de laquelle est introduite un isolant (2) en tout matériau approprié. La longueur de la gaine (l) est égale à deux fois la hauteur du sac fini. La longueur de l'isolant est sensiblement inférieure à celle de la gaine. Après insertion dudit isolant, on procede au positionnement transversal et à fixation du même côté de la gaine de deux randes: d'éléments (3) auto-agrippants complémentaires du type de ceux commercialisés sous les Marques "CRIC-CRAC" ou "VELCRO". The insulated bag according to the invention is produced from a plastic sheath (1) unwound in length and between the walls (la - lb) from which an insulator (2) made of any suitable material is introduced. The length of the sheath (l) is twice the height of the finished bag. The length of the insulation is significantly less than that of the sheath. After inserting said insulator, proceed to transverse positioning and fixing on the same side of the sheath of two tracks: of self-gripping elements (3) complementary to the type of those marketed under the Brands "CRIC-CRAC" or "VELCRO" .

Les deux bandes sont disposées légèrement en retrait des extrémites de la gaine. De manière avantageuse, les bandes des éléments auto-agrippants sont + ix ées dans l'épaisseur de la gaine par couture, soudure par ultra-sons, par impression, par laser, à chaud et tout procédé approprié. Ainsi qu'il apparaît au; dessins, la liaison obtenue intervient entre la bande rapportée elle-même et les deux parois de la gaine plastique (1) ainsi que l extrémité de l'isolant. On obtient une parfaite tenue de l'ensemble.The two bands are arranged slightly set back from the ends of the sheath. Advantageously, the strips of the hook-and-loop elements are fixed in the thickness of the sheath by sewing, ultrasonic welding, by printing, by laser, by heat and by any suitable process. As it appears in; In the drawings, the connection obtained occurs between the attached strip itself and the two walls of the plastic sheath (1) as well as the end of the insulation. We obtain a perfect hold of the whole.

L.a phase suivante consiste dans la formation du sac par une opération de repliage en deux de la bande sur elle-meme définissant ainsi le fond (4) du sac. De manière avantageuse, on forme dans ledit fond avec tous moyens mécaniques appropriés et connus un soufflets donnant une certaine stabilité au sac. Après pliage, les bandes des éléments auto-agrippants sont en regard l'une de l'autre. The next phase consists in the formation of the bag by an operation of folding the strip in two in itself, thus defining the bottom (4) of the bag. Advantageously, there is formed in said bottom with all appropriate and known mechanical means a bellows giving a certain stability to the bag. After folding, the strips of the hook-and-loop elements are facing each other.

La phase suivante consiste à effectuer la fermeture des côtés du sac par toute opération connue de soudure, couture ou collage donnant des lignes de fixation (5). The next phase consists in closing the sides of the bag by any known operation of welding, sewing or gluing giving fixing lines (5).

Il reste ensuite à disposer la poignée de préhension (6) insérée entre les extrémités libres de la gaine prépliée. La ignée est de toute forme appropriée. It then remains to arrange the grip handle (6) inserted between the free ends of the pre-folded sheath. The igneous is of any suitable form.

Le sac obtenu présente de nombreux avantages :
sa fabrication est simple et peu conteuse
- l'isolation thermique est absolue par suite de la fermeture utilisant les éléments auto-agrippants
- la fermeture du sac est fiable et ne peut etre détériorée par suite de la solidarisation des bandes d'éléments auto-agrippants, avec les deux parois de la gaine et du matériau isolant La structure ainsi définie assure une grande rigidité à l'ensemble compte tenu des très nombreuses manipulations dwouvertures-fermetures effectuées lors de l'utilisation du sac, sans risque d'arrachage de la bande d'éléments auto-agrippants par rapport à son support.The bag obtained has many advantages:
its manufacture is simple and not very storytelling
- the thermal insulation is absolute as a result of the closure using the hook-and-loop elements
- the closure of the bag is reliable and cannot be deteriorated as a result of the joining of the strips of hook-and-loop elements, with the two walls of the sheath and of the insulating material The structure thus defined ensures great rigidity to the whole account given the very large number of openings and closings carried out during the use of the bag, without the risk of tearing off the strip of hook-and-loop elements relative to its support.

Le sac précédemment décrit peut présenter de nombreuses extensions avec le même principe de réalisation et comprend par exemple une pluralité de compartiments intérieurs pour le stockage de produits tels que bouteilles et autres. Les compartiments sont eux-mEmes séparés par des bandes d'éléments auto-agrippants disposés de manière appropriée lors de la fabrication de la gaine support. The bag described above can have many extensions with the same principle of construction and includes, for example, a plurality of interior compartments for the storage of products such as bottles and the like. The compartments are themselves separated by strips of hook-and-loop elements arranged in an appropriate manner during the manufacture of the support sheath.

En variante, la séparation desdits compartiments peut être assurée par des lignes de soudure par ultra-sons, couture ou analogues
Le sac objet de l'invention peut ne pas comprendre de poignée et se présenter sous la forme d'un manchon pour le transport de bouteilles par exemple.Alternatively, the separation of said compartments can be ensured by ultrasonic welding lines, sewing or the like
The object of the invention bag may not include a handle and be in the form of a sleeve for transporting bottles, for example.

La nature de la gaine en matériau plastique ou de l'isolant peut varier selon les besoins sans modifier en cela les caractéristiques techniques du sac isotherme objet de 1 s invention.  The nature of the sheath made of plastic material or of the insulation can vary as required without thereby modifying the technical characteristics of the insulated bag object of the invention.

L'invention ne se limite aucunement à celui de ses modes dapplication non plus qu'à ceux des modes de réalisation de ses diverses parties ayant plus spécialement été indiquées elle eri embrasse au contraire toutes les variantes.  The invention is in no way limited to that of its modes of application any more than to those of the embodiments of its various parts having been more especially indicated, it on the contrary embraces all variants.

Claims (6)

REVENDICATIONS -1- Sac isotherme pour produits surgelés notamment, caractérisé en ce quil est constitué par une gaine (1) en matériau plastique à 1 intérieur de laquelle est disposé un matériau isolant (2) ; ladite gaine présentant sur la même face des bandes transversales d'éléments. auto-agrippants (3) aux parois de ladite gaine et au matériau isolant et assurant apres pliage de la gaine en deux, la fermeture et l'étanchéité thermique intérieure du sac ;-des lignes de liaison étant prévues sur les bordures longitudinales du sac.-1- Insulated bag for frozen products in particular, characterized in that it consists of a sheath (1) of plastic material inside 1 of which is disposed an insulating material (2); said sheath having on the same face transverse bands of elements. Velcro fasteners (3) to the walls of said sheath and to the insulating material and ensuring, after folding the sheath in half, the closing and the internal thermal sealing of the bag; - connecting lines being provided on the longitudinal edges of the bag. -2- Sac isotherme selon la revendication t! caractérisé en ce qu'il comprend un fond en soufflet. -2- Insulated bag according to claim t! characterized in that it comprises a bellows bottom. -3- Sac selon la revendication 1, caractérisé en ce qu'il comprend des compartiments définis par des lignes de soudures, coutures ou bandes d'éléments auto-agrippants fixés aux parois de la gaine en solidarisant avec le matériau isolant.-3- Bag according to claim 1, characterized in that it comprises compartments defined by lines of welds, seams or strips of self-gripping elements fixed to the walls of the sheath by integrating with the insulating material. -4- Procédé de fabrication d'un sac isotherme selon la revendication t caractérise en ce que l'on fabrique une gaine en matière plastique (1) dans laquelle on introduit un matériau isolant, la longueur de la gaine étant égale à deux fois la hauteur du sac fini ; la longueur de l'isolant étant sensiblement inférieur à celle de la gaine non on procède au positionnement transversal et à la fixation du même coté de deux bandes d'éléments (3) auto-agrippants, les deux bandes étant légèrement en retrait des extrémités de la gaine et étant fixés dans les deux parois de la gaine et de la partie d'isolant correspondante ; on procède au pliage en deux de la bande sur elle-même ; puis à la formation de lignes de bordures longitudinales. -4- A method of manufacturing an insulated bag according to claim t characterized in that one manufactures a plastic sheath (1) into which an insulating material is introduced, the length of the sheath being equal to twice the height of finished bag; the length of the insulation being appreciably less than that of the sheath, we proceed to the transverse positioning and to the fixing on the same side of two strips of self-gripping elements (3), the two strips being slightly set back from the ends of the sheath and being fixed in the two walls of the sheath and of the corresponding insulating part; the strip is folded in half on itself; then the formation of longitudinal border lines. -5- Protédé selon la revendication 4, caracterisé en ce que le bandes d'elements auto-agrippants sont fixées par couture, soudure et autre procédé équivalent.-5- Protected according to claim 4, characterized in that the strips of Velcro elements are fixed by sewing, welding and other equivalent process. -6- Protédé selon la revendication 4, caractérisé en ce que le tond du sac est établi avec une forme en soufflet.  -6- Protected according to claim 4, characterized in that the mowing of the bag is established with a bellows shape.
FR8508430A 1985-05-30 1985-05-30 ISOTHERMAL BAG FOR FROZEN PRODUCTS IN PARTICULAR, AND ITS MANUFACTURING METHOD Expired FR2582624B3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8508430A FR2582624B3 (en) 1985-05-30 1985-05-30 ISOTHERMAL BAG FOR FROZEN PRODUCTS IN PARTICULAR, AND ITS MANUFACTURING METHOD
FR8513850A FR2587302B2 (en) 1985-05-30 1985-09-13 ISOTHERMAL BAG FOR FROZEN PRODUCTS IN PARTICULAR AND ITS MANUFACTURING METHOD.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8508430A FR2582624B3 (en) 1985-05-30 1985-05-30 ISOTHERMAL BAG FOR FROZEN PRODUCTS IN PARTICULAR, AND ITS MANUFACTURING METHOD

Publications (2)

Publication Number Publication Date
FR2582624A3 true FR2582624A3 (en) 1986-12-05
FR2582624B3 FR2582624B3 (en) 1987-07-31

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FR8508430A Expired FR2582624B3 (en) 1985-05-30 1985-05-30 ISOTHERMAL BAG FOR FROZEN PRODUCTS IN PARTICULAR, AND ITS MANUFACTURING METHOD

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0758613A1 (en) * 1995-08-11 1997-02-19 Helmut Dr. Frank Cooling bag
WO2012146795A1 (en) * 2011-04-27 2012-11-01 Valgraf, S.L. Packaging for keeping articles cold

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2575191A (en) * 1948-03-08 1951-11-13 George A Seipp Collapsible insulated refrigerator bag for carrying articles to be chilled
US2667198A (en) * 1951-01-26 1954-01-26 Walter L Klein Receptacle
DE1454987A1 (en) * 1965-04-29 1969-05-08 Bischof & Klein Fa Process for producing multilayer plastic sacks, bags or the like
FR2300714A1 (en) * 1975-02-17 1976-09-10 Rouyres Maurice Multiple plastic carrier bag package - has weld lines joining bags and forming compartments in bags
US4196817A (en) * 1978-11-20 1980-04-08 Moser D Wescott Insulated portable beverage container
DE2853061A1 (en) * 1978-12-08 1980-06-19 Goetze Nord West Papierwerk Cold or hot food transport packing - comprises multi-walled bag of plastics foam material with thin air gap spacing(s)

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2575191A (en) * 1948-03-08 1951-11-13 George A Seipp Collapsible insulated refrigerator bag for carrying articles to be chilled
US2667198A (en) * 1951-01-26 1954-01-26 Walter L Klein Receptacle
DE1454987A1 (en) * 1965-04-29 1969-05-08 Bischof & Klein Fa Process for producing multilayer plastic sacks, bags or the like
FR2300714A1 (en) * 1975-02-17 1976-09-10 Rouyres Maurice Multiple plastic carrier bag package - has weld lines joining bags and forming compartments in bags
US4196817A (en) * 1978-11-20 1980-04-08 Moser D Wescott Insulated portable beverage container
DE2853061A1 (en) * 1978-12-08 1980-06-19 Goetze Nord West Papierwerk Cold or hot food transport packing - comprises multi-walled bag of plastics foam material with thin air gap spacing(s)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0758613A1 (en) * 1995-08-11 1997-02-19 Helmut Dr. Frank Cooling bag
WO2012146795A1 (en) * 2011-04-27 2012-11-01 Valgraf, S.L. Packaging for keeping articles cold
ES2391193A1 (en) * 2011-04-27 2012-11-22 Valgraf, S.L. Packaging for keeping articles cold

Also Published As

Publication number Publication date
FR2582624B3 (en) 1987-07-31

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