WO2020208856A1 - Récipient de four - Google Patents

Récipient de four Download PDF

Info

Publication number
WO2020208856A1
WO2020208856A1 PCT/JP2019/044910 JP2019044910W WO2020208856A1 WO 2020208856 A1 WO2020208856 A1 WO 2020208856A1 JP 2019044910 W JP2019044910 W JP 2019044910W WO 2020208856 A1 WO2020208856 A1 WO 2020208856A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
flange
layer
seal portion
peripheral side
Prior art date
Application number
PCT/JP2019/044910
Other languages
English (en)
Japanese (ja)
Inventor
西島　剛彦
山口　勝
Original Assignee
東罐興業株式会社
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 東罐興業株式会社 filed Critical 東罐興業株式会社
Priority to CN201980090731.0A priority Critical patent/CN113614004B/zh
Priority to JP2020506373A priority patent/JP6693006B1/ja
Publication of WO2020208856A1 publication Critical patent/WO2020208856A1/fr

Links

Images

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

Definitions

  • the present invention is configured by heat-bonding a lid to the flange portion of the container body formed of a multilayer structure including the adjacent first container layer and second container layer by a heat seal portion, and the first container layer and the first container layer during heating.
  • the present invention relates to a range container for discharging the steam in the contents accommodating portion through a steam passage formed between the second container layers.
  • cooked or semi-cooked food is stored in a microwave oven container in which a lid is heat-bonded to the flange of the container body by an annular heat seal, and when the food is eaten, it is heated by a microwave oven.
  • Packaged foods for cooking are on the market.
  • the heat-sealed portion of the microwave oven container may be devised so as to have easy peeling property, or the shape of the heat-sealed portion may be devised so that the heat-sealed portion may be cooked in a microwave oven. Due to the increase in internal pressure due to the expansion of steam generated from the food and the air in the sealed container, a part of the heat-sealed part that heat-bonds the flange part and the lid is peeled off, and the part where the peeling occurs. A method of releasing the internal pressure of the microwave oven container has been proposed by using the above as a steam passage (see, for example, Patent Document 1).
  • one or a plurality of convex portions or the like are formed on the upper surface of the flange portion to cover the flange portion. It is also possible to prevent the body from coming into close contact.
  • the range container of Patent Document 2 since it is necessary to form one or a plurality of convex portions on the upper surface of the flange portion, not only the manufacturing cost of the range container is increased, but also the convex portions are formed.
  • the radial width of the flange portion must be designed to be large in order to form the convex portion, and the formation of the convex portion may affect the thermal adhesion of the lid to the flange portion.
  • the applicant has placed a flange portion formed of a multilayer structure including the first container layer and the second container layer between the first container layer and the second container layer.
  • a range container that forms a boundary exposed portion, which is the boundary between the two, and discharges the steam in the content container through the steam passage formed between the first container layer and the second container layer when heated by a microwave oven.
  • Patent Document 3 In the microwave oven container described in Patent Document 3, when heated by a microwave oven, the pressure and heat of steam passing through a steam passage formed between the first container layer and the second container layer causes the first container layer or the first container layer or the first container layer.
  • the arch-shaped portion is formed even when the temperature of the microwave oven container drops after heating the microwave oven container. It is possible to prevent the steam passage from being blocked by the deformed portion, thereby preventing the introduction of outside air into the microwave oven container and causing deformation of the microwave oven container.
  • an object of the present invention is to provide a microwave oven container having a simple structure and preventing the contents from scattering and the generation of a plosive sound when heated by a microwave oven. It is something to do.
  • the present invention is configured by heat-bonding a lid body to a flange portion of a container body formed of a multi-layer structure including an adjacent first container layer and a second container layer by a heat seal portion, and the first container layer when heated.
  • a range container for discharging steam in the content accommodating portion through a steam passage formed between the first container layer and the second container layer, and the flange portion is provided between the first container layer and the second container layer.
  • a boundary exposed portion is formed which is exposed to the content accommodating portion at least when heated, and the heat seal portion is an annular shape formed so as to surround the content accommodating portion when viewed from above.
  • the deformed seal portion has a seal portion, a deformed seal portion protruding from the inner peripheral edge of the annular seal portion to the inner peripheral side, and control seal portions formed on both sides of the deformed seal portion in the flange circumferential direction. Is formed so that its inner peripheral edge reaches or is close to the boundary exposed portion when viewed from above in a plan view, and the control seal portion is an unsealed portion in which the lid body is not heat-bonded to the flange portion. The problem is solved by facing the deformed seal portion in the flange circumferential direction with the
  • the heat seal portion has a deformed seal portion protruding from the inner peripheral edge of the annular seal portion to the inner peripheral side, and a control seal portion formed on both sides of the deformed seal portion in the flange circumferential direction.
  • the control seal portion faces the irregularly shaped seal portion in the flange circumferential direction with the unsealed portion in which the lid body is not heat-bonded to the flange portion.
  • the first container layer Since it is possible to suppress the peeling between the layers of the second container from spreading in the circumferential direction of the flange, a steam passage can be satisfactorily formed between the first container layer and the second container layer, and during heating, it is possible to form a good steam passage. It is possible to prevent the contents from scattering and bursting noise.
  • FIG. 3 is a cross-sectional view of a microwave oven container shown in the direction of the arrow at the position taken along line AA in FIG. Explanatory drawing which enlarges and shows the vicinity of the boundary exposed part of FIG. Explanatory drawing which shows the state of steam removal at the time of heating. Explanatory drawing which shows the vicinity of the boundary exposed part as seen from above.
  • FIG. 5 is a cross-sectional view shown in the direction of the arrow at the position of line BB in FIG. Explanatory drawing which shows the vicinity of the deformed seal part enlarged. Explanatory drawing which shows the experimental result which confirms the relationship between a seal shape and steam vent.
  • Explanatory drawing which shows various deformation examples of a microwave oven container.
  • Explanatory drawing which shows various deformation examples of a microwave oven container.
  • Explanatory drawing which shows the modification of the aspect of the boundary exposed part.
  • Explanatory drawing which shows the modification which formed the through hole in the flange part.
  • the microwave oven container 10 is configured by heat-bonding a lid 30 to a flange portion 25 of a container body 20 by a heat-sealing portion 40, and has been cooked in the contents accommodating portion 11.
  • it is configured as a container for a microwave oven that stores semi-cooked food and is heated by a microwave oven when the food is eaten.
  • the container body 20 is formed of a multilayer structure including the adjacent first container layer 21 and the second container layer 22, and in the present embodiment, the upper side (inner peripheral side of the body).
  • the first container layer 21 as a sealing layer to be heat-bonded to the lid 30, the second container layer 22 as an intermediate layer (softening resin layer), and the third container layer 23 as a base material layer 3 It is formed in a layered structure.
  • the first container layer (seal layer) 21 is an ethylene-based copolymer such as polypropylene, polyethylene, EMA (ethylene-methylacrylate), EVA (ethylene-vinyl acetate), EMMA (ethylene-methylmethacrylate), or a mixture thereof.
  • the main component is a resin having a Vicat softening point (JIS K7206 A method) of 100 ° C. or higher, and in particular, polypropylene or polyethylene is preferably the main component.
  • the second container layer (intermediate layer) 22 is formed from an ethylene-based copolymer such as polypropylene, polyethylene, EMA, EVA, or EMMA, or a mixture thereof.
  • the second container layer (intermediate layer) 22 is made of polyethylene or ethylene. It is preferably formed from a copolymer or a mixture thereof.
  • the third container layer (base material layer) 23 is formed of polypropylene, polyethylene, or the like, but is preferably formed of polypropylene as a main component from the viewpoint of heat resistance.
  • the container main body 20 integrally has a cup portion 24 opened upward and an annular flange portion 25 integrally formed on the upper end edge of the cup portion 24 and extending to the outer peripheral side. There is.
  • an annular step portion 26 is formed on the upper surface of the flange portion 25 so that the inner peripheral side is lowered from the outer peripheral side over the entire circumference in the flange circumferential direction. Then, due to the formation of the step portion 26, the first container layer 21, which is the uppermost layer of the container body 20, has the outer peripheral side portion 21a formed on the outer peripheral side of the step portion 26 and the step portion, as shown in FIG. An inner peripheral side portion 21b formed on the inner peripheral side of the 26 and formed below the outer peripheral side portion 21a is formed. As shown in FIGS.
  • the lid 30 is heat-bonded to at least a part of the upper surface of the outer peripheral side portion 21a of the first container layer 21 (the entire area in the present embodiment), and the first container layer 21 is formed.
  • the lid 30 is not heat-bonded to the upper surface of the inner peripheral side portion 21b of the above.
  • the second container layer 22 is also formed on the outer peripheral side portion 22a formed on the outer peripheral side of the step portion 26 and on the inner peripheral side of the step portion 26.
  • An inner peripheral side portion 22b formed below the outer peripheral side portion 22a is formed.
  • the lid 30 is not heat-bonded to the upper surface of the inner peripheral side portion 21b of the first container layer 21, but the lid 30 is heat-bonded to the upper surface of the inner peripheral side portion 21b.
  • the adhesive force between the lid body 30 and the inner peripheral side portion 21b it is preferable to set the adhesive force between the lid body 30 and the inner peripheral side portion 21b to be weaker than the adhesive force between the lid body 30 and the outer peripheral side portion 22a, and more specifically, the content. It is preferable that the adhesive portion between the lid 30 and the inner peripheral side portion 21b is set to be peeled off when a pressure of 20 kPa or less is applied to the object accommodating portion 11.
  • the heat-bonded portion between the lid 30 and the inner peripheral side portion 21b is peeled off by the increase in the vapor pressure in the content accommodating portion 11, and the boundary exposed portion 28 described later is used.
  • the peeling between the layers of the first container layer 21 and the second container layer 22 can proceed.
  • the height difference t between the outer peripheral side portion 21a and the inner peripheral side portion 21b of the first container layer 21 is preferably set to 70 to 250 ⁇ m.
  • the height difference t is 70 ⁇ m or more, steam in the content accommodating portion 11 can be reliably infiltrated between the inner peripheral side portion 21b and the lid 30 during heating, and the height difference t is 250 ⁇ m.
  • the step portion 26 is formed with a cut portion 27 in which the first container layer 21 is cut (at least cut to the boundary between the first container layer 21 and the second container layer 22).
  • the stepped portion 26 is formed with a boundary exposed portion 28 which is a boundary between the first container layer 21 and the second container layer 22.
  • the boundary exposed portion 28 is exposed to the content accommodating portion 11 (more specifically, is exposed when viewed from the inside of the container), and when heated, the first container layer 21 is exposed. It functions as an opening on the content accommodating portion 11 side of the steam passage 29 formed between the second container layer 22 and the second container layer 22.
  • the depth d of the cut portion 27 is preferably set larger than the height difference t, and by setting the depth d larger than the height difference t, the first container layer 21 and the second container layer 22
  • the boundary exposed portion 28, which is the boundary between the two, can be reliably exposed.
  • the lid 30 is formed of a synthetic resin or the like, and has an opening grip portion 31 located on the outer peripheral side of the heat seal portion 40 and on the outer peripheral side of the flange portion 25, as shown in FIG.
  • the opening grip portion 31 is a portion for the user to grip when opening the lid body 30, and is formed on the opposite side of the deformed seal portion 42 described later with the center of the container interposed therebetween.
  • the peripheral portion of the deformed seal portion 42 which tends to be difficult to peel off due to the formation of the arch-shaped deformed portion 21c described later, can be peeled off at the end, so that the openability of the lid body 30 is reduced. Can be suppressed.
  • the adhesive strength between the lid 30 and the first container layer 21 is the adhesive strength between the other layers (in the present embodiment, the first container layer 21 and the adhesive strength) from the viewpoint of forming the arch-shaped deformed portion 21c described later. It is preferable to set it higher than the adhesive strength between the second container layer 22 and the adhesive strength between the second container layer 22 and the third container layer 23). Further, the adhesive strength between the first container layer 21 and the second container layer 22 is the adhesive strength between the other layers (in the present embodiment, the lid) from the viewpoint of satisfactorily forming the arch-shaped deformed portion 21c described later. It is preferable to set it lower than the adhesive strength between 30 and the first container layer 21 and the adhesive strength between the second container layer 22 and the third container layer 23).
  • the heat seal portion 40 is a portion where the lower surface of the lid 30 and the upper surface of the first container layer 21 (the outer peripheral side portion 21a) are heat-bonded, and as shown in FIG. 1, the contents are viewed from above.
  • An annular seal portion 41 formed so as to surround the object accommodating portion 11, a deformed seal portion 42 protruding from the inner peripheral edge of the annular seal portion 41 to the inner peripheral side, and a deformed seal portion 42 formed on both sides of the irregular seal portion 42 in the flange circumferential direction. It has a pair of control seal portions 43.
  • the deformed seal portion 42 is formed so that its inner peripheral edge reaches or is close to the boundary exposed portion 28 when viewed in a plan view from above.
  • the inner peripheral edge of the deformed seal portion 42 is arranged in contact with or close to the step portion 26, the first container layer 21 and the second container layer 22 due to the increase in the internal pressure of the content accommodating portion 11 Since it is possible to cause peeling in the deformed seal portion 42, peeling between the first container layer 21 and the second container layer 22, peeling of the lid 30 from the flange portion 25, etc. Can be suppressed.
  • the control seal portion 43 is formed by sandwiching the unsealed portion 44 in which the lid 30 is not heat-bonded to the flange portion 25 and facing the irregularly shaped seal portion 42 in the flange circumferential direction. Has been done.
  • the control seal portion 43 is continuously formed on the annular seal portion 41 in the flange radial direction, and the unseal portion 44 communicates with the content accommodating portion 11.
  • the innermost end of the control seal portion 43 in the flange radial direction is set to be outside the innermost end in the flange radial direction of the deformed seal portion 42 in the flange radial direction.
  • the control seal portion 43 is formed so that the innermost end in the flange radial direction of the control seal portion 43 is located inside the flange radial direction of the deformed seal portion 42 in the flange radial direction. May be good.
  • the microwave oven container 10 is heated by a microwave oven, the contents in the content storage unit 11 are heated to generate steam, and the internal pressure inside the microwave oven container 10 rises.
  • the boundary exposed portion 28 between the first container layer 21 and the second container layer 22 is formed.
  • the steam passage 29 extending in the radial direction of the flange portion 25 between the first container layer 21 and the second container layer 22 Is formed, and as shown in FIG. 4, the steam in the content accommodating portion 11 is discharged to the outside from the layers of the first container layer 21 and the second container layer 22 on the outer peripheral edge of the flange portion 25 through the steam passage 29. Will be done.
  • the steam in the range container 10 is discharged to the outside through the steam passage 29 formed between the first container layer 21 and the second container layer 22, so that the steam passes through the steam passage 29.
  • the pressure and heat of the first container layer 21 cause the first container layer 21 to be deformed in an arch shape, and as shown in FIG. 6, the arch-shaped deformed portion 21c is formed in the first container layer 21.
  • the arch-shaped deformed portion 21c formed in the first container layer 21 causes the first container layer 21 and the second container layer 22. Since the state in which the steam passage 29 is formed is maintained between them, even if the temperature of the range container 10 drops after heating the range container 10, outside air is introduced into the range container 10 through the steam passage 29. Therefore, it is possible to prevent the range container 10 from being deformed.
  • the thickness of the first container layer 21 it is preferable to set the thickness of the first container layer 21 to 40 to 200 ⁇ m. Further, in order to satisfactorily form the arch-shaped deformed portion 21c, it is preferable that the elongation rate (JIS K7161) of the first container layer 21 is 100% or more. Further, the width dimension of the deformed seal portion 42 in the flange circumferential direction is preferably set to 4 mm or more.
  • a pressing force due to the steam pressure applied to the unsealed portion 44 from both outer sides in the flange circumferential direction is applied to the steam passage 29, and the first outer side in the flange circumferential direction is applied. Since the progress of peeling between the container layer 21 and the second container layer 22 (that is, the spread of the steam passage 29 in the flange circumferential direction) is suppressed, the flange is suppressed while suppressing the spread of the steam passage 29 in the flange circumferential direction.
  • the first container layer 21 and the second container layer 22 can be separated from each other toward the outside in the circumferential direction.
  • the final shape of the steam passage 29 formed as described above becomes a tapered shape toward the outside in the flange circumferential direction as shown in FIG. 8A.
  • the control seal portion 43 and the unsealed portion 44 as follows. First, as shown in FIG. 7, the depth dimension D1 of the unsealed portion 44 (that is, in the direction parallel to the virtual line L extending along the flange radial direction through the center in the flange circumferential direction of the deformed sealed portion 42).
  • the dimension D1) from the innermost end of the control seal portion 43 in the flange radial direction to the annular seal portion 41 is preferably set to 1 mm or more and 50% or less of the width dimension D2 of the flange portion 25 in the above direction.
  • the dimension D1 is set small, the effect of preventing the expansion of the steam passage 29 utilizing the bulge of the unsealed portion 44 cannot be sufficiently obtained, and if the dimension D1 is set large. , The width of the annular seal portion 41 in the flange radial direction cannot be sufficiently secured, and the airtightness is lowered. Further, as shown in FIG. 7, the angle defined by the intersection of the virtual line L and the outer edge of the flange portion 25 and the innermost end of the pair of left and right control seal portions 43 on the deformed seal portion 42 side. ⁇ is preferably set at 60 ° to 150 °, and more preferably set at 80 ° to 130 °.
  • the angle ⁇ is set small, the force for pressing the steam passage 29 from the flange circumferential direction due to the bulge of the unsealed portion 44 cannot be sufficiently obtained, and the angle ⁇ is set large. If this happens, the steam passage 29 will be formed up to the outer peripheral edge of the flange portion 25 before the unsealed portion 44 swells and exerts a sufficient force to press the steam passage 29.
  • the distance (maximum separation distance) W between the deformed seal portion 42 and the control seal portion 43 in the flange circumferential direction is preferably set to 4 to 20 mm.
  • test products 1 to 4 as shown in FIG. 8 are prepared, 50 cc of water is put in each test product, and heated in a microwave oven set at 600 W until steam is ejected to the outside of the container. Then, the state of the formed steam passage 29 and the presence or absence of a plosive sound at the time of steam ejection were confirmed.
  • test products 1 to 4 are formed under the same conditions except for the shape, position, and presence / absence of the control seal portion 43. Specifically, each test product has a diameter of 78 mm and a flange. It is formed in the shape of a container having a radial width of 7 mm and a volume of 65 cc, and the lid 30 is heat-bonded to the flange portion 25 under the conditions of 175 ° C., 120 kgf / cup, and 1.5 sec.
  • the opening ⁇ (OK) in the table shown in FIG. 8 means that the steam passage 29 is well formed as shown in FIG. 8A as an example, and the opening ⁇ means that the opening ⁇ is shown in FIG. As shown in 8 (b) as an example, it means that the steam passage 29 is formed so as to expand in the circumferential direction of the flange portion 25.
  • the container body 20 has a three-layer structure including a first container layer 21 as a sealing layer, a second container layer 22 as an intermediate layer, and a third container layer 23 as a base material layer.
  • the specific embodiment of the container body 20 is not limited to the above, and is formed in a structure having at least two layers (first container layer 21 and second container layer 22).
  • the container body 20 may be formed with a two-layer structure including a first container layer 21 formed as a seal layer and a second container layer 22 formed as a base material layer.
  • the boundary exposure between the first container layer 21 and the second container layer 22 is better when the intermediate layer (softened resin layer) made of polyethylene, ethylene-based copolymer, or the like is provided as in the above-described embodiment. This is preferable because the steam release property from the portion 28 is improved.
  • the arch-shaped deformed portion 21c is formed in the first container layer 21, but at least one of the first container layer 21 and the second container layer 22.
  • the range container 10 may be configured so that the arch-shaped deformed portion 21c is formed on the surface.
  • FIG. 9A is shown. Anything may be used, such as that shown in FIG. 9 (c).
  • the control seal portion 43 has been described as being continuously formed on the annular seal portion 41 in the flange radial direction, but FIG. 9 (d) shows. As shown, the control seal portion 43 may be formed at a position separated from the annular seal portion 41 in the flange radial direction.
  • the maximum separation distance in the flange radial direction between the control seal portion 43 and the annular seal portion 41 is set. It is preferably set within 4 mm.
  • the shape of the deformed seal portion 42 has been described as being rectangular, but the specific shape of the deformed seal portion 42 is a side portion in the flange circumferential direction as shown in FIG. 9 (f). Anything may be used, such as one having a step formed on the flange.
  • the step portion 26 (cut portion 27, boundary exposed portion 28) has been described as being formed over the entire circumference in the flange circumferential direction.
  • a step portion 26 (cut portion 27, boundary exposed portion 28) may be formed only in a partial region in the flange circumferential direction.
  • the width dimension of the boundary exposed portion 28 in the flange circumferential direction is set longer than the width dimension of the deformed seal portion 42 in the flange circumferential direction, and the boundary exposed portion 28 is the deformed seal portion 42 in the flange circumferential direction.
  • both ends are formed over a range extending beyond both outer sides in the circumferential direction of the flange, whereby the arch-shaped deformed portion 21c as shown in FIG. 6 can be satisfactorily formed.
  • the step portion 26 cut portion 27, boundary exposed portion 28
  • the lid body 30 is heat-bonded to the container body 20. At that time, it is not necessary to align the container body 20 and the lid 30 in the circumferential direction.
  • the shape of the flange portion 25 has been described as being formed in an annular shape, but the specific shape of the container body 20 is not limited to the above, for example. Anything may be used, such as the substantially rectangular ring shown in FIG. 10 (b) and FIG. 10 (c).
  • the flange portions 25 have a plurality of (four in the example shown in FIG. 10) having an inner peripheral edge extending linearly when viewed in a plan view from above. It is formed in a substantially polygonal shape (rectangular shape or rectangular annular shape in the example shown in FIG.
  • the deformed seal portion 42 is continuously formed on the portion of the annular seal portion 41 formed on the side portion 25a, and in the example shown in FIG. 10C, the deformed seal portion 42 is formed continuously.
  • the irregularly shaped seal portion 42 is continuously formed on the portion of the annular seal portion 41 formed on the corner portion 25b.
  • the steam passage 29 Is more preferable because it facilitates stable formation.
  • a step portion 26 (cut portion 27) is formed on the flange portion 25 to form a boundary between the first container layer 21 and the second container layer 22.
  • the boundary exposed portion 28 may be formed without forming the step portion 26.
  • a flange is used with a heated blade or the like.
  • the container body 20 having a multi-layer structure is formed so that a part of the portion 25 is removed and a portion where the boundary portion between the layers of the flange portion 25 corresponding to the boundary exposed portion 28 is exposed is formed (for example, the first A sheet having a two-layer structure of a first container layer 21 and a second container layer 22 is attached to the flange portion 25 of the container body 20 made of the three container layers 23).
  • the first container layer 21 does not have to be the uppermost layer of the multi-layer structure of the container body 20, and for example, the layer below the uppermost layer is the first container layer 21. You may.
  • the steam that has entered the steam passage 29 is external from the layers of the first container layer 21 and the second container layer 22 at the outer edge of the flange portion 25. It was explained as being discharged to.
  • the specific embodiment of the microwave oven container 10 is not limited to the above, and for example, as shown in FIG. 12, a through hole 29a penetrating from the upper surface to the lower surface of the flange portion 25 is formed, and steam is formed from the boundary exposed portion 28.
  • the steam that has entered the passage 29 may be discharged to the outside through the through hole 29a.
  • the through hole 29a be set to be inside the deformed seal portion 42.
  • the through hole 29a is arranged outside the control seal portion 43 in the flange radial direction.
  • the boundary exposed portion 28 has been described as being exposed to the content accommodating portion 11 in the state before heating, but the boundary exposed portion 28 is at least exposed to the content accommodating portion 11 during heating. It suffices if it is exposed.
  • the boundary exposed portion 28 is covered with the resin material of the lid 30 or the first container layer 21 in the state before heating, and the vapor pressure in the content accommodating portion 11 increases. The resin material may be peeled off, and the peeling between the layers of the first container layer 21 and the second container layer 22 may be started from the boundary exposed portion 28.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Package Specialized In Special Use (AREA)

Abstract

La présente invention concerne un récipient de four qui évite que le contenu ne se disperse et empêche les sons d'éclatement pendant le chauffage.　Le récipient de four (10) selon l'invention évacue la vapeur à l'intérieur d'une partie de réception de contenu (11) pendant le chauffage par l'intermédiaire d'un passage de vapeur (29) qui est formé entre une première couche de récipient (21) et une seconde couche de récipient (22). Une partie exposée de limite (28) qui est exposée à la partie de réception de contenu (11) pendant le chauffage est formée au niveau d'une partie bride (25) du récipient de four (10). Une partie d'étanchéité à la chaleur (40) présente une partie d'étanchéité annulaire (41), une partie d'étanchéité de variante (42) qui fait saillie vers le côté circonférentiel interne à partir d'un bord circonférentiel interne de la partie d'étanchéité annulaire (41) et des parties d'étanchéité de commande (43) qui sont respectivement formées de chaque côté de la partie d'étanchéité de variante (42) dans la direction circonférentielle de bride. Vu de dessus dans une vue en plan, un bord circonférentiel interne de la partie de joint d'étanchéité de variante (42) atteint ou est proche de la partie exposée de limite (28). Les parties d'étanchéité de commande (43) sont opposées à la partie d'étanchéité de variante (42) dans la direction circonférentielle de bride avec des parties non étanchéifiées (44) entre celles-ci.
PCT/JP2019/044910 2019-04-11 2019-11-15 Récipient de four WO2020208856A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201980090731.0A CN113614004B (zh) 2019-04-11 2019-11-15 微波炉用容器
JP2020506373A JP6693006B1 (ja) 2019-04-11 2019-11-15 レンジ用容器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-075729 2019-04-11
JP2019075729 2019-04-11

Publications (1)

Publication Number Publication Date
WO2020208856A1 true WO2020208856A1 (fr) 2020-10-15

Family

ID=72751012

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/044910 WO2020208856A1 (fr) 2019-04-11 2019-11-15 Récipient de four

Country Status (2)

Country Link
CN (1) CN113614004B (fr)
WO (1) WO2020208856A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07257662A (ja) * 1994-03-18 1995-10-09 Sumitomo Bakelite Co Ltd 電子レンジ調理用食品包装体
JP2007204134A (ja) * 2006-02-06 2007-08-16 Sun A Kaken Co Ltd 電子レンジ用包装容器の開封方法
US20090123614A1 (en) * 2006-04-13 2009-05-14 Cfs Kempten Gmbh Packaging which is suitable for microwaves
US20160176613A1 (en) * 2014-12-18 2016-06-23 Kuo Hsiang Tzu Pressure auto-adjusting package for heated food and a composite membrane thereof
JP2017171329A (ja) * 2016-03-23 2017-09-28 東罐興業株式会社 レンジ用容器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004345686A (ja) * 2003-05-22 2004-12-09 Lining Container Kk 易開封容器
US7582340B2 (en) * 2006-04-06 2009-09-01 Packs Co., Ltd Container for retort pouch food
JP4888644B2 (ja) * 2006-05-19 2012-02-29 東洋製罐株式会社 電子レンジ調理用包装体
JP2019038552A (ja) * 2017-08-23 2019-03-14 日清食品ホールディングス株式会社 包装容器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07257662A (ja) * 1994-03-18 1995-10-09 Sumitomo Bakelite Co Ltd 電子レンジ調理用食品包装体
JP2007204134A (ja) * 2006-02-06 2007-08-16 Sun A Kaken Co Ltd 電子レンジ用包装容器の開封方法
US20090123614A1 (en) * 2006-04-13 2009-05-14 Cfs Kempten Gmbh Packaging which is suitable for microwaves
US20160176613A1 (en) * 2014-12-18 2016-06-23 Kuo Hsiang Tzu Pressure auto-adjusting package for heated food and a composite membrane thereof
JP2017171329A (ja) * 2016-03-23 2017-09-28 東罐興業株式会社 レンジ用容器

Also Published As

Publication number Publication date
CN113614004B (zh) 2022-11-04
CN113614004A (zh) 2021-11-05

Similar Documents

Publication Publication Date Title
US8153216B2 (en) Packaging with passage regions and sealing tool for production thereof
JP6008447B2 (ja) 密閉フィルム、包装材及び包装体
JP6282026B2 (ja) 包装袋
JP4242872B2 (ja) 電子レンジ用包装容器の開封方法
JP6595941B2 (ja) レンジ用容器
WO2005023676A1 (fr) Sachet d'emballage pour four a micro-ondes
JP4124287B2 (ja) 密封容器
WO2020208856A1 (fr) Récipient de four
JP3807793B2 (ja) 電子レンジ用食品包装体
JP7422501B2 (ja) 容器
JP2000025850A (ja) 電子レンジ用包装袋
JP6693006B1 (ja) レンジ用容器
JP4145799B2 (ja) マイクロ波加熱可能な包装体
JP2016068981A (ja) 蓋材
JP7063715B2 (ja) 容器本体およびその製造方法、容器本体の製造用工具、並びに、容器
JP7137919B2 (ja) 容器
JP4716368B2 (ja) 電子レンジ加熱用包装容器
JP6168997B2 (ja) 包装袋
JP2005059867A (ja) 蒸気抜き機能を有する包装袋とそれを用いた包装体
JP6864496B2 (ja) 加熱調理用包装容器および加熱調理用包装容器の製造方法
JP7082707B2 (ja) 包装袋
JP2994957B2 (ja) 食品包装用２分割容器
WO2021020330A1 (fr) Sac d'emballage
JP7032210B2 (ja) 容器
JP2019081583A (ja) 容器

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2020506373

Country of ref document: JP

Kind code of ref document: A

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19923733

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19923733

Country of ref document: EP

Kind code of ref document: A1