EP1157942A1 - Emballage pour la cuisson d'aliments ayant un système de régulation de pression - Google Patents

Emballage pour la cuisson d'aliments ayant un système de régulation de pression Download PDF

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Publication number
EP1157942A1
EP1157942A1 EP00110826A EP00110826A EP1157942A1 EP 1157942 A1 EP1157942 A1 EP 1157942A1 EP 00110826 A EP00110826 A EP 00110826A EP 00110826 A EP00110826 A EP 00110826A EP 1157942 A1 EP1157942 A1 EP 1157942A1
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EP
European Patent Office
Prior art keywords
container body
container
pressure control
control valve
food
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00110826A
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German (de)
English (en)
Inventor
Bang Hyun Kim
Mi Soon Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP00110826A priority Critical patent/EP1157942A1/fr
Publication of EP1157942A1 publication Critical patent/EP1157942A1/fr
Withdrawn legal-status Critical Current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
    • B65D81/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3446—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
    • B65D81/3461—Flexible containers, e.g. bags, pouches, envelopes
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/22—Details
    • B65D77/225—Pressure relief-valves incorporated in a container wall, e.g. valves comprising at least one elastic element
    • 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
    • B65D81/32—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 for packaging two or more different materials which must be maintained separate prior to use in admixture
    • B65D81/3261—Flexible containers having several compartments
    • 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
    • B65D81/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3415—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated in hot water, e.g. boil pouches
    • 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
    • B65D2205/00—Venting means

Definitions

  • the present invention relates, in general, to food packaging and cooking containers having pressure control valves and, more particularly, to a food packaging and cooking container designed to allow a user to easily and simply cook packaged food without breaking the seal of the packaging container or moving the food from the packaging container into another cooking container, the packaging and cooking container being thus used for cooking packaged food while maintaining its food packaging function.
  • packaged food has to be removed from a packaging container or a wrapper prior to cooking the food.
  • the empty packaging container or the wrapper is, thereafter, discarded as waste.
  • Such raw foods have to be appropriately cut and trimmed by a user prior to cooking, thus being somewhat inconvenient 10 busy users. Therefore, a variety of instant foods, specially processed for quick preparation, have been proposed and used.
  • the food is removed from a wrapper or a packaging container prior to being heated and cooked using boiled water or using a heating apparatus, such as a microwave oven. In such a case, the empty wrapper or empty packaging container is discarded as waste.
  • the object of conventional wrappers or packaging containers for raw or instant foods is merely 10 package feeds.
  • frozen instant foods have to be thawed prior to cooking.
  • the foods may be deteriorated in taste.
  • Another problem of such conventional instant foods resides in that they typically include antiseptic substances ill-affecting human health.
  • some instant favorite foods such as instant tea or coffee
  • Another problem of such conventional instant favorite foods resides in that they fail to give desired taste to users.
  • an object of the present invention is to provide a food packaging and cooking container, which is designed to be used for cooking food as it still contains the food in its packaged state, thus being convenient to users.
  • Another object of the present inventon is to provide a food packaging and cooking container, which is designed to be used for cooking food using a heating apparatus, such as a microwave oven, as the container still contains the food in its packaged state, and to allow the food to be heated and cooked using boiled water while maintaining desired good taste.
  • a heating apparatus such as a microwave oven
  • the present invention provides a food packaging and cooking container, comprising an external container body having a hole on its upper sheet, and a pressure control valve attached to the upper sheet of the external container body and used for normally covering the hole of the external container body and selectively opening the hole when the interior pressure of the external container body is increased up to a predetermined reference level.
  • an internal conrainer body in addition to desired food may be received within the external container body.
  • the internal container body has the same construction as that of the external container body and is provided with a pressure control valve, and receives seasoned liquid therein. Therefore, the container of this invention allows a user to easily and simply cook packaged food without breaking the seal of the container or moving the food from the container into another cooking container. This container thus allows the user to cook food without using a separate cooking container and is convenient to the user while cooking.
  • the container of this invention is preferably used for packaging and cooking a variety of foods, for example, raw foods, such as fish and meat, frozen foods, vegetables, noodles, and instant foods.
  • the food packaging and cooking container of this invention accomplishes the safe transportation of foods, maintenance of food freshness, a good appearance of packaged foods and a desired sales promotion of foods.
  • This container is effectively used for cooking food while the food is still in a packaged state, during a cooking process.
  • the container with packaged food When the container with packaged food is heated, moisture of the food is vaporized to increase the interior pressure of the container due to a steam pressure, thus allowing the container to expand.
  • the steam pressure acts on the pressure control valve of the container and finally opens the valve when the pressure is increased up to a predetermined reference level.
  • the valve When the valve is opened as described above, the interior pressure of the container is reduced to allow the valve to be brought into close contact with the container and to close the hole of the container.
  • the pressure control valve thus appropriately controls the interior pressure of the container.
  • it is possible to control a desired interior pressure of the container by controlling the adhesive force of the pressure control valve and/or the diameter of the hole formed on the container.
  • the pressure control valve comprises a flexible sheet, with an adhesive layer being formed on one surface of the flexible sheet.
  • the pressure control valve is attached to the top surface of the container using the adhesive layer.
  • the pressure control valve is provided with an adhesive-free area at a position corresponding to the hole of the container.
  • the adhesive-free area of the pressure control valve preferably has an isosceles triangular profile, with each of the bottom apexes of the isosceles adhesive-free area having an angle of not higher than 60°.
  • the profile of the adhesive-free area is not limited to the above-mentioned isosceles triangular profile.
  • the seasoned liquid When a food packaging and cooking container, which packages food in addition to an interior container body receiving seasoned liquid, is heated, the seasoned liquid is boiled to increase the interior pressure of the internal container body and to open the pressure control valve of the internal container body. In such a case, the seasoned liquid flows from the internal container body into the interior of the external container body and heats the food within the external container body.
  • the food, packaged in the container of this invention is thus easily, quickly and appropriately cooked.
  • the internal container body receives water in place of the seasoned liquid.
  • a plurality of ice pieces and frozen food may be packaged in the container.
  • the ice pieces When such a container is heated, the ice pieces are primarily melted into water and are secondarily boiled to become vapor, increasing the interior pressure of the container.
  • the pressure control valve appropriately controls the increased interior pressure of the container, and so it is possible to cook the frozen food at appropriate pressure and temperature.
  • the container receives pure ice pieces.
  • the ice pieces become soup or broth when they are heated and melted.
  • both anti-freezing seasoned liquid packaged in an internal container body and a plurality of ice pieces in addition to desired food may be received within the container.
  • the anti-freezing seasoned liquid is boiled and increases the interior pressure of the internal container body, thus finally opening the pressure control valve of the internal container body.
  • the seasoned liquid flows from the internal container body into the interior of the external container body, while the ice pieces are melted into water prior to being mixed with the seasoned liquid into desired soup or broth.
  • the soup or broth is boiled to cooK the food through a stewing process.
  • Fig. 1 is a sectional view of a food packaging and cooking container in accordance with the primary embodiment of the present invention.
  • the reference numeral 10 denotes the container.
  • the food packaging and cooking container 10 comprises an external container body 11 and a pressure control valve 24 having a sheet shape.
  • the reference numeral 12 denotes food received within the external container body 11.
  • Fig. 2 is a sectional view of the edge of the container of Fig. 1.
  • the external container body 11 comprises an upper sheet 18 and a lower sheet 20.
  • the upper sheet 18 consists of one internal sheet, or one polyethylene sheet 14, layered with one external sheet, or one polypropylene sheet 16.
  • the lower sheet 20 is made of one polypropylene sheet 16.
  • the above external container body 11 is provided with a hole 22 at its upper sheet 18.
  • a pressure control valve 24 is attached 10 the top surface of the upper sheet 18 using an adhesive so as to normally close the hole 22 of the sheet 18.
  • Figs. 3 and 4 are views, showing a food packaging and cooking container 10 in accordance with the second embodiment of the present invention.
  • the container 10 according to this second embodiment comprises an external container body 11, which is composed of an upper sheet 18 and a lower sheet 20.
  • the upper sheet 18 consists of one internal sheet, or one polyethylene sheet 14', layered with one external sheet, or one polypropylene sheet 16'.
  • the lower sheet 20 is seamed to the upper sheet 18 at edges thereof.
  • the above external container body 11 has a hole 22 at its upper sheet 18.
  • a pressure control valve 24 is attached to the top surface of the upper sheet 18 using an adhesive so as to normally close the hole 22 of the sheet 18 in the same manner as that described for the primary embodiment.
  • Figs. 5 and 6 show the construction of the hole 22 and the pressure contro valve 24 in detail.
  • the pressure control valve 24 comprises a circular flexible sheet 26, with an adhesive layer 28 being formed on one surface of the sheet 26.
  • the pressure control valve 24 is attached to the top surface of the external container body 11 using the adhesive layer 28 at a predetermined attachment area, shown by the shaded portion of Fig. 6.
  • the above pressure control valve 24 is provided with an adhesive-free area 30 at its central portion.
  • the adhesive-free area 30 of the valve 24 preferably has a noncircular profile, but it should be understood that the profile of the area 30 may have a circular profile.
  • the above adhesive-free area 30 may preferably have an isosceles triangular profile as shown in Fig. 6. It is also preferable to make the size of the adhesive-free area 30 larger than that of the hole 22, thus completely covering the hole 22. Therefore, food 12 is not brought into contact with the adhesive layer 28 of the pressure control valve 24, but only comes into contact with the adhesive-free area 30, and so it is possible to prevent an undesirable contamination of food by the adhesive layer 28.
  • Figs. 7a to 7c are views, showing the container 10 of Fig. 1 after the container is initially heated within a heating apparatus, such as a microwave oven, for a predetermined period of time.
  • a heating apparatus such as a microwave oven
  • the moisture of food 12 is vaporized to become steam, thus increasing the interior pressure of the external container body 11 as shown in Figs. 8a to 8c.
  • the steam circulates within the container body 11 and is partially liquidized prior to being collected on the bottom of the container body 11.
  • the pressure control valve 24 starts to be separated from the upper sheet 18 of the container body 11 at a time the pressure within the container body 11 is increased up to a level, at which the adhesive layer 28 of the pressure control valve 24 does not effectively endure the pressure.
  • the separation of the pressure control valve 24 from the container body 11 is more effectively generated at the isosceles sides 34 of the triangular adhesive-free area 30 than the bottom side 32 of that area 30.
  • Figs. 9a to 9c are views, showing the external container body 11 of Fig. 1 when the container body 11 is further heated from the state of Figs. 8a to 8c.
  • Figs. 10a to 10c are views, showing the container body 11 of Fig. 1 when the pressure control valve 24 is opened after the container body 11 is further heated from the state of Figs. 9a to 9c.
  • the pressure control valve 11 As the pressure control valve 11 is opened, the interior pressure of the container body 11 is reduced.
  • the pressure control valve 24 in the above state is partially attached to the upper sheet 18 of the container body 11 at apexes thereof, and so the valve 24 may be brought into close contact with the upper sheet 18 of the container body 11 when the interior pressure of the body 11 is reduced down to a predetermined reference level.
  • the profile of the pressure control valve 24 is not limited to a circular profile 24a, but may have a rectangular profile 24b, a triangular profile 24c, an elliptical profile 24d, a slot profile 24e, a polygonal profile 24f or the like as shown in Figs. 11a to 11f without affecting the functioning of this invention.
  • the pressure control valve 24 is attached to the upper sheet 18 of the external container body 11 using an adhesive, and so it is preferable to allow the valve 24 to have a smoothly rounded profile capable of effectively preventing an undesirable stress concentration on the external container body 11.
  • Figs. 12a to 12c are sectional views, showing a part of an external container body 11 of a food packaging and cooking container provided with a pressure control valve in accordance with another embodiment of the present invention.
  • the pressure control valve 124 according to this embodiment comprises a flexible sheet 126, with both an adhesive layer 128 being formed on one surface of the sheet 126 and a noncircular sheet 130 being attached to the central portion of the adhesive layer 128.
  • the noncircular sheet 130 it is preferable to allow the noncircular sheet 130 to have an isosceles triangular profile.
  • the size of the above noncircular sheet 130 is larger than that of the hole 22, thus completely covering the hole 22 of the external container body 11.
  • the pressure control valve 124 is attached to the external surface of the upper sheet 18 of the external container body 11, with the noncircular sheet 130 covering the hole 22 of the upper sheet 18.
  • Figs. 13a to 13c are sectional views, showing a part of an external container body 11 of a food packaging and cooking container provided with a pressure control valve 224 in accordance with a further embodiment of this invention.
  • the pressure control valve 224 according to this embodiment comprises a flexible sheet 226, with both an adhesive layer 228 being formed on one surface of the sheet 226 and a seal piece 230 being exteriorly attached to the upper sheet 18 of the external container body 11 at the central portion around the hole 22.
  • the separation of the pressure control valve 224 from the external container body 11 due to a pressure is generated in a direction parallel to the seal piece 230.
  • the adhesive layer 228 is gradually separated from the upper sheet 18 of the container body 11 in a longitudinal, or a leftward direction in the drawings.
  • the pressure control valve 224 is not attached to the upper sheet 18 of the container body 11 again, but continuously maintains an open state of the hole 22 of the upper sheet 18.
  • Figs. 14a to 14c are sectional views, showing a part of an external container body 11 of a food packaging and cooking container provided with a pressure control valve 324 in accordance with still another embodiment of the present invention.
  • the pressure control valve 324 according to this embodiment comprises a flexible sheet 326, with both an adhesive layer 328 being formed on one surface of the sheet 326 and an adhesive-free area 330 being diametrically formed on the surface of the sheet 326.
  • the above adhesive-free area 330 forms a channel allowing the interior of the external container body 11 to communicate with the atmosphere.
  • the external container body 11 may have two holes, of which one is covered with one pressure control valve 324 attached to the outside surface of the container body 11, and the other is covered with another pressure control valve 324 attached to the inside surface of the container body 11. In such a case, it is possible to form an effective suction and exhaust structure for the external container body 11.
  • Figs. 15 to 20 are sectional views, showing foods 12 packaged in food packaging and cooking containers in accordance with different embodiments of this invention.
  • the container 10 of this invention is freely used for packaging and cooking a variety of foods, such as fish, meat, frozen foods and specially processed instant foods.
  • Fig. 15 shows the container 10 used for packaging and cooking corn.
  • the container 10 of Figs. 4 and 5 is used, with the pressure control valve 24 of Figs. 5 and 6 being attached to the upper sheet 18 of the external container body 11.
  • the containers and pressure control valves remain the same as those of the embodiment of Fig. 15, but only the food item is changed, replacing corn with a variety of food items.
  • a nonwoven fabric 113 is received within the container 10 along with the food 12 so as to control moisture inside the external container body 11.
  • Fig. 16 shows the container 10 used when raw noodles are packaged and cooked.
  • a small-sized interior container body 11a having the same construction as that of the external container body 11 and receiving seasoned soup or broth, is received within the external container body 11 along with the food 12, or the raw noodles.
  • the pressure control valve 24 of the internal container body 11a is directed in a way opposite to that of the external container body 11.
  • the container 10 is heated, the seasoned soup or broth within the interior container body 11a is heated and partially vaporized, thus increasing the interior pressure of the container body 11a and opening the valve 24 of the body 11a.
  • the seasoned soup or broth thus flows from the internal container body 11a into the interior of the external container body 11.
  • the seasoned soup or broth of the internal container body 11a is completely emptied and flows into the interior of the external container body 11.
  • the seasoned soup or broth is boiled within the external container body 11 and heats the raw noodles 12 within the container body 11.
  • the pressure control valve 24 of the external container body 11 controls the interior pressure of the container body 11.
  • the container 10 is opened to move the cooked noodles 12 from the container 10 into a separate bowl. It is preferable to receive some shallots and/or specially processed pork in the external container body 11 along with the noodles 12 since they improve the taste of the noodles 12.
  • the food packaging and cooking container 10 of this invention is effectively used for easily and quickly cooking food 12 without forcing a user to open the container 10 or move the food 12 from the container 10 into a separate container.
  • the container 10 is thus very convenient to users, especially busy users.
  • Fig. 17 shows the container 10 used when fish is packaged and cooked.
  • a small-sized interior container body 11a having the same construction as that of the external container body 11 and receiving liquid spices and condiments, is received within the external container body 11 along with food 12, or fish.
  • the pressure control valve 24 of the internal container body 11a is directed in a way opposite to that of the external container body 11.
  • the cooking process of this container 10 remains the same as that described for Fig. 16 and further explanation is thus not deemed necessary.
  • Fig. 18 shows the container 10 used when bread dough 12 is packaged and cooked through a steaming process.
  • both a plurality of ice pieces 206 and a nonwoven fabric 208 in addition to the bread dough 12 are received within the external container body 11.
  • the ice pieces 206 are primarily melted into water and are secondarily boiled to become vapor, thus steaming the bread dough 12.
  • the pressure control valve 24 is opened to control the interior pressure of the container 10.
  • Fig. 19 shows the container 10 used when frozen fish 12 is packaged and cooked.
  • a plurality of seasoned ice pieces 212 in addition to the frozen fish 12 are received within the external container body 11.
  • the seasoned ice pieces 212 are packaged within a nonwoven fabric bag 213.
  • the ice pieces 212 are primarily melted into water and are secondarily boiled to cook the frozen fish 12.
  • the pressure control valve 24 is opened to control the interior pressure of the container 10.
  • Fig. 20 shows the container 10 used when beef is packaged and cooked through a stewing process.
  • both anti-freezing liquid spices and condiments 216 and a plurality of ice pieces 218 in addition to beef 12 are received within the external container body 11.
  • the spices and condiments 216 are received within a small-sized internal container body 11a, which has the same construction as that of the external container body 11.
  • the anti-freezing spices and condiments flow from the internal container body 11a into the interior of the external container body 11, while the ice pieces 212 are melted into water prior to being mixed with the spices and condiments 216 into soup or broth.
  • the soup or broth is boiled to cook the beef 12 through a stewing process.
  • the pressure control valve 24 is opened to control the interior pressure of the container 10.
  • the food packaging and cooking container of this invention is used for packaging and cooking a variety of foods.
  • the food packaging and cooking containers of this invention may be preferably used at home, in an office, on trains, airplanes, ships and in restaurants.
  • Figs. 21 and 22 are views, showing the construction and operational effect of a food packaging and cooking container according to another embodiment of the present invention.
  • the container 10 of this embodiment has a second hole 22 on the lower sheet 20 of the external container body 11, with a second pressure control valve 24 being attached to the hole 22 of the lower sheet 20.
  • a small-sized internal container body 11a which has the same construction as that of the external container body 11 and receives desired liquid, such as water, therein, is received within the external container body 11.
  • This container 10 is preferably used for instant favorite foods 12, such as tea or coffee. In the case of such instant favorite foods 12, it is desirable to package the foods 12 within a filter bag 3.
  • the container 10 When it is desired to cook the food 12 packaged within the container 10 of Figs. 21 and 22, the container 10 is laid on the top edge of a cup or of a bowl, with the second pressure control valve 24 of the lower sheet 20 being directed downward.
  • the container 10, laid on the cup or the bowl, is received within a heating apparatus, such as a microwave oven, so as to be heated by the apparatus.
  • a heating apparatus such as a microwave oven
  • the inferior pressure of the internal container body 11a When the inferior pressure of the internal container body 11a is increased up to a predetermined reference level, the exterior surface of the upper sheet of the internal container body 11a comes into contact with the interior surface of the upper sheet 18 of the external container body 11, thus closing the pressure control valve 24 formed on the sheet 18.
  • the valve 24 of the internal container body 11a When the internal container body. 11a further expands due to the increased pressure, the valve 24 of the internal container body 11a is opened, and so the heated liquid flows from the internal container body 11a into the interior of the external container body 11. Due to the heated liquid discharged from the internal container body 11a, a steam pressure acts within the external container body 11. The heated liquid is forced downward by the steam pressure and passes through the filter bag 3 receiving the instant favorite food 12.
  • the steam pressure also acts on the second pressure control valve 24 provided on the lower sheet 20 of the external container body 11, thus opening the valve 24. Therefore, hot tea or hot coffee is received into the cup or the bowl under the container 10 through the open valve 24 of the lower sheet 20 of the external container body 11.
  • the empty internal container body 11a somewhat shrinks, but is brought into contact with the inside surface of the upper sheet 18 of the external container body 11, with a gap being formed between the internal container body 11a and the pressure control valve 24 formed on the upper Sheep 18 of the external container body 11. Steam is thus discharged from the external container body 11 into the atmosphere through the gap and the pressure control valve 24 of the upper sheet 18 of the external container body 11.
  • the interior pressure of the external container body 11 is thus appropriately controlled, and so it is possible to prevent an unexpected bursting of the external container body 11 during a cooking process.
  • the appropriately controlled interior pressure of the external container body 11 allows the hot tea or coffee to be more smoothly discharged from the container 10 into the cup or the bowl positioned under the container 10.
  • Fig. 23 is a sectional view, showing an operational effect of a food packaging and cooking container in accordance with still another embodiment of the present invention.
  • the container 10 of this embodiment is more preferably used for steaming food or for cooking food with soup or broth.
  • a net member 13 divides the interior of the external container body 11 into two parts, or upper and lower parts.
  • a small-sized interior container body 11a having the same construction as that of the external container body 11 and receiving soup or broth, is received within the upper part of the external container body 11, while food 12 is received within the lower part of the container body 11.
  • the container 10 When it is desired to cook the food 12 packaged within the above container 10, the container 10 is received in a heating apparatus, such as a microwave oven, with the pressure control valve 24 of the external container body 11 being directed downward.
  • a heating apparatus such as a microwave oven
  • the liquid packaged within the internal container body 11a is boiled to generate steam and to increase the interior pressure of the internal container body 11a, thus allowing the internal container body 11a to expand.
  • the interior pressure of the internal container body 11a is increased up to a first predetermined reference level, the exterior surface of the upper sheet of the internal container body 11a comes into contact with the pressure control valve 24 provided on the upper sheet 18 of the external container body 11, thus closing the pressure control valve 24 of the external container body 11.
  • the steam pressure of the internal container body 11a is further increased up to a second predetermined reference level.
  • the pressure control valve 24 of the internal container body 11a is opened, and so the heated liquid flows from the internal container body 11a into the interior of the external container body 11. Due to the heated liquid discharged from the internal container body 11a, steam pressure acts within the external container body 11. The heated liquid is forced downward by the steam pressure and passes through the net member 13 so as to be collected in the lower part of the external container body 11 and to cook the food 12 within the lower part of the container body 11.
  • the empty internal container body 11a shrinks to form a gap between the pressure control valve 24 of the external container body 11 and the upper sheet of the internal container body 11a.
  • the present invention provides a food packaging and cooking container with a pressure control valve.
  • the container of this invention packages food and is also used for cooking the food.
  • the container thus improves the market competitiveness of foods and effectively maintains the food freshness for a desired lengthy period of time.
  • the container of this invention is designed to be used for cooking food as it still contains the food in its packaged state, and so it is possible to easily quickly cook food without using a separate container, thus being very convenient to users.
  • the container of this invention is also provided with a pressure control valve that is designed to appropriately control the interior pressure of the container while cooking. It is thus possible to easily and quickly cook food packaged by the container while maintaining desired good taste expected from a typical cooking of raw food using a typical cooking container.
  • the container of this invention is effectively used for packaging and cooking raw food, and so it is possible to prevent breakage of nourishment of food and to maintain good taste of food while cooking.
EP00110826A 2000-05-22 2000-05-22 Emballage pour la cuisson d'aliments ayant un système de régulation de pression Withdrawn EP1157942A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00110826A EP1157942A1 (fr) 2000-05-22 2000-05-22 Emballage pour la cuisson d'aliments ayant un système de régulation de pression

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00110826A EP1157942A1 (fr) 2000-05-22 2000-05-22 Emballage pour la cuisson d'aliments ayant un système de régulation de pression

Publications (1)

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EP1157942A1 true EP1157942A1 (fr) 2001-11-28

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EP00110826A Withdrawn EP1157942A1 (fr) 2000-05-22 2000-05-22 Emballage pour la cuisson d'aliments ayant un système de régulation de pression

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1422163A1 (fr) * 2002-11-22 2004-05-26 Amcor Flexibles Europe A/S Conditionnement pour aliments à réchauffer dans un four
WO2004106190A1 (fr) * 2003-05-30 2004-12-09 Micvac Ab Robinet
WO2006092562A1 (fr) * 2005-03-03 2006-09-08 Ffp Packaging Solutions Limited Couvercle auto-ventilé pour emballage de nourriture chauffable
EP2275252A1 (fr) 2009-07-09 2011-01-19 Masterpack S.p.A. Procédé de fabrication d'étiquettes d'obturation adhésives flexibles
EP2735521A1 (fr) * 2012-11-21 2014-05-28 Mondi Consumer Packaging International AG Sachet plastique à plat destiné à chauffer des aliments
WO2015111015A1 (fr) 2014-01-27 2015-07-30 Masterpack S.P.A. Soupape d'étiquettes auto-adhésives
JP2015193419A (ja) * 2014-03-25 2015-11-05 株式会社フジシール マイクロ波処理用通蒸ラベル、及びマイクロ波処理用包装体

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JPH03136614A (ja) * 1989-07-28 1991-06-11 Yoshio Oyama 熱発生調理機を利用した飲食品調理パック
JPH06329179A (ja) * 1993-05-21 1994-11-29 Yoshio Oyama 圧力調整弁、該圧力調整弁を有する自動調理用パッケージ、及び該自動調理用パッケージで包装された飲食品
US5989608A (en) * 1998-07-15 1999-11-23 Mizuno; Maki Food container for cooking with microwave oven
GB2337978A (en) * 1997-12-03 1999-12-08 Stephen Roy Brocklesby Multi-pocketed pouch for a single serving of a meal

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US2946502A (en) * 1954-11-10 1960-07-26 Melvin R Metzger Valve-equipped containers
JPH03136614A (ja) * 1989-07-28 1991-06-11 Yoshio Oyama 熱発生調理機を利用した飲食品調理パック
JPH06329179A (ja) * 1993-05-21 1994-11-29 Yoshio Oyama 圧力調整弁、該圧力調整弁を有する自動調理用パッケージ、及び該自動調理用パッケージで包装された飲食品
GB2337978A (en) * 1997-12-03 1999-12-08 Stephen Roy Brocklesby Multi-pocketed pouch for a single serving of a meal
US5989608A (en) * 1998-07-15 1999-11-23 Mizuno; Maki Food container for cooking with microwave oven

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1422163A1 (fr) * 2002-11-22 2004-05-26 Amcor Flexibles Europe A/S Conditionnement pour aliments à réchauffer dans un four
WO2004048225A1 (fr) * 2002-11-22 2004-06-10 Amcor Flexibles Europe A/S Emballage d'aliments destine a etre chauffe dans un four
US8911150B2 (en) 2003-05-30 2014-12-16 Micvac Ab Valve
AU2004242623B2 (en) * 2003-05-30 2007-03-29 Micvac Ab Valve
CN100503392C (zh) * 2003-05-30 2009-06-24 米克瓦科股份公司 阀
WO2004106190A1 (fr) * 2003-05-30 2004-12-09 Micvac Ab Robinet
WO2006092562A1 (fr) * 2005-03-03 2006-09-08 Ffp Packaging Solutions Limited Couvercle auto-ventilé pour emballage de nourriture chauffable
AU2006219770B2 (en) * 2005-03-03 2007-09-20 Ffp Packaging Solutions Limited Self-venting cover for heatable food package
EP2275252A1 (fr) 2009-07-09 2011-01-19 Masterpack S.p.A. Procédé de fabrication d'étiquettes d'obturation adhésives flexibles
EP2735521A1 (fr) * 2012-11-21 2014-05-28 Mondi Consumer Packaging International AG Sachet plastique à plat destiné à chauffer des aliments
WO2015111015A1 (fr) 2014-01-27 2015-07-30 Masterpack S.P.A. Soupape d'étiquettes auto-adhésives
US10029840B2 (en) 2014-01-27 2018-07-24 Masterpack S.P.A. Self-adhesive label valve
JP2015193419A (ja) * 2014-03-25 2015-11-05 株式会社フジシール マイクロ波処理用通蒸ラベル、及びマイクロ波処理用包装体

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