WO1993023290A1 - Device for preparing long preservable box-lunch and lunch box therefor - Google Patents
Device for preparing long preservable box-lunch and lunch box therefor Download PDFInfo
- Publication number
- WO1993023290A1 WO1993023290A1 PCT/JP1992/000645 JP9200645W WO9323290A1 WO 1993023290 A1 WO1993023290 A1 WO 1993023290A1 JP 9200645 W JP9200645 W JP 9200645W WO 9323290 A1 WO9323290 A1 WO 9323290A1
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- Prior art keywords
- container
- lunch
- inert gas
- gas
- film
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
- B65B31/08—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzle being adapted to pierce the container or wrapper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B25/00—Packaging other articles presenting special problems
- B65B25/001—Packaging other articles presenting special problems of foodstuffs, combined with their conservation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
- B65B31/025—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for rigid or semi-rigid containers
- B65B31/028—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for rigid or semi-rigid containers closed by a lid sealed to the upper rim of the container, e.g. tray-like container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
- B65B31/046—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles co-operating, or being combined, with a device for opening or closing the container or wrapper
- B65B31/047—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles co-operating, or being combined, with a device for opening or closing the container or wrapper the nozzles co-operating with a check valve in the opening of the container or wrapper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
- B65D81/266—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants
- B65D81/268—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants the absorber being enclosed in a small pack, e.g. bag, included in the package
Definitions
- Akeita Manufacturing equipment for long-term storable lunches and their lunch containers
- the present invention relates to a manufacturing device for a long-term storable lunch and a lunch container thereof, and more specifically, a large number of long-term storable lunches that not only prevent food spoilage and the like but also do not degrade the freshness, flavor, and aroma of food.
- the present invention relates to a manufacturing device that can be manufactured and a lunch container thereof.
- the present invention relates to a benton container and a container that can be stored for a long time even if the benton is provided with perishable foods such as vegetables and fruits, and that can be manufactured in large quantities. The purpose is to provide a method for making bento.
- the present inventor has conducted intensive studies so that lunches can be stored for a long period of time, and as a result, the lunch container ⁇ ⁇ sealed with a film is filled with an inert gas, By storing at a predetermined temperature in an inert gas atmosphere, it is possible to suppress the oxidation and respiratory action of food, and also to suppress the evaporation of water in food, and as a result, only to prevent food decay Instead, they found a way to store their lunches for long periods of time without deteriorating the freshness, flavor and aroma of food.
- a packed lunch box on which food is placed is transported by a conveyor, and air is sucked and passed through a spare chamber filled with inert gas.
- This is a method in which the lunch container is sealed with a film in a sealing room at a predetermined temperature in which is satisfied.
- the lunch container is cooled to a temperature of 11 ° C or less in the seal cooling room filled with the inert gas. This is a method of sealing a lunch box with a film while cooling.
- a third method is to set the cooling temperature in the seal cooling chamber to -8 or less.
- the lunch can be stored for a long time without deteriorating the freshness of food.
- the following is an invention of a device for manufacturing a lunch that can be stored for a long period of time, and a lunch container suitable for the device.
- the device for manufacturing a long-term storable lunch according to the present invention
- a degassing / inert gas charging mechanism that degass air from the inner space of the sealed lunch box and fills the inner space with an inert gas.
- the sealed lunch box is filled with an inert gas, and the food is stored in an inert gas atmosphere, so that the oxidation and respiratory action of the food can be suppressed, and the water content of the food can be reduced. Evaporation can also be suppressed, and as a result, not only can food spoilage be prevented, but also lunch boxes can be manufactured in large quantities that can be stored for a long period of time without deteriorating the strength, flavor, and aroma of food.
- Transport means for sequentially transporting a large number of lunch containers on which food is placed in the plurality of gas chambers
- Each gas chamber is filled with an inert gas such that the concentration of the inert gas gradually increases in the gas chamber located on the downstream side for transporting the lunch container.
- Charging means ;
- sealing means for sealing each lunch box In the gas chamber with the highest concentration of inert gas, sealing means for sealing each lunch box,
- the concentration of the inert gas in the lunch container can be sequentially increased by transporting the lunch container in the gas chamber in which the concentration of the inert gas is gradually increased.
- the air in the lunch container can be completely replaced with inert gas, and the lunch container can be filled with inert gas. Is sealed by a sealing means. Therefore, a large number of lunch containers can be continuously and quickly filled with the inert gas, and the inert gas is not insufficiently filled. As a result, it is possible to mass-produce lunches that can be stored for a long time.
- a lunch container that can be filled with an inert gas using an inert gas filling pipe into an inner space of a container sealed with a film and on which food is placed,
- the inside space of the container is kept airtight and the inert gas can be filled from this filling tube into the container inside space, while the inert gas filling tube is removed. It is characterized by having a sealing valve that keeps the inner space of the container airtight when it is used.
- the lunch container according to the present invention has such a sealing valve, when the inert gas filling pipe is inserted into the sealing valve, the gas leaks from the space in the lunch container. No inert gas in lunch box On the other hand, when the inert gas filling pipe is removed from the sealing valve after the filling, the space in the lunch box is kept airtight and gas does not leak.
- the inert gas can be filled in the lunch container by an extremely simple filling operation, the filling operation can be completed in a short time (for example, several seconds). As a result, it is possible to mass-produce lunches that can be stored for a long time.
- the interior space of the container When passing through the inert gas charging needle, the interior space of the container is kept airtight, and the inert gas can be charged from the charging needle to the interior space of the container.
- the film is provided with a self-sealing member that keeps the inner space of the container airtight when the container is removed.
- the interior space of the container is kept airtight, and the inert gas can be charged from the charging needle to the interior space of the container.
- the film is formed from a laminated film in which a first layer of self-sealing property for keeping the inner space of the container airtight and a second layer of another resin are alternately laminated.
- the film since the film is provided with the self-sealing member, the film is formed from the first layer having the self-sealing property as described above. Therefore, when the inert gas-filled needle passes through this self-sealing member or film, the gas leaks from the space inside the lunch container.
- the inert gas can be filled in the lunch container without any problem, but if the inert gas filling needle is removed after this filling, the space in the lunch container is kept airtight and gas may leak. Absent.
- the inert gas can be filled in the lunch box by a very simple filling operation, the filling operation can be completed in a short time (for example, several seconds). Lunches that can be stored for a long period can be mass-produced.
- An inert gas filling unit that can fill the inside space of the lunch container with an inert gas
- Adsorbing means for adsorbing ethylene gas generated from a specific food placed in a lunch box Adsorbing means for adsorbing ethylene gas generated from a specific food placed in a lunch box
- an inert gas can be filled in a lunch box sealed with a film, and food can be stored in an inert gas atmosphere. Therefore, the oxidation and respiratory action of food can be suppressed, and the evaporation of water in food can be suppressed. As a result, not only the decay of food can be prevented, but also the freshness, flavor, and aroma of food can be degraded. Food can be stored for a long time.
- the present invention has an adsorption means for adsorbing ethylene gas generated from foods (vegetables and fruits), the ethylene gas can be removed from the lunch box, and the freshness of these vegetables and fruits can be sufficiently freshened.
- the present invention is excellent in preservability of vegetables and fruits. Also, the lunch container according to the present invention,
- a storage bag for storing fruits and vegetables and an adsorption means for adsorbing ethylene gas generated from fruits and vegetables is arranged in a lunch box.
- the adsorption means for adsorbing ethylene gas generated from fruits and vegetables is provided, the ethylene gas can be removed from the storage bag, and the freshness of the fruits and vegetables can be maintained sufficiently fresh. . Furthermore, when the fruits and vegetables are harvested, the fruits can be stored in storage bags to remove ethylene gas, and then the storage bags are placed in lunch boxes.
- FIG. 1 is a block diagram of an apparatus for manufacturing a long-term storable lunch according to a first embodiment of the present invention.
- FIG. 2 is a perspective view of a pallet used in the embodiment.
- FIG. 3 is a perspective view of the apparatus for conveying the pallet shown in FIG.
- FIG. 4 is a perspective view of a lunch container used for the lunch manufacturing apparatus according to the second embodiment of the present invention.
- FIG. 5 is a schematic view of a lunch box manufacturing apparatus according to the embodiment.
- FIG. 6 is an enlarged view of the seal gas chamber shown in FIG.
- FIG. 7 is a cutaway perspective view of each gas chamber in FIG.
- FIG. 8 is a cutaway perspective view of each gas chamber according to a modification of the embodiment of the present invention.
- FIG. 9 is a perspective view of a lunch container according to the third embodiment of the present invention.
- FIG. 10 is a sectional view of the lunch container shown in FIG.
- FIG. 1I is an enlarged sectional view of the sealing valve shown in FIG.
- FIG. 12 is a perspective view showing a first modification of the sealing valve shown in FIG.
- FIG. 13 is a sectional view of the sealing valve shown in FIG.
- FIG. 14 is a cross-sectional view showing a second modification of the sealing valve shown in FIG. .
- FIG. 15 is a perspective view of a lunch container according to a fourth embodiment of the present invention.
- FIG. 16 is a sectional view of the lunch container shown in FIG.
- FIG. 17 is a sectional view of a film according to a fourth embodiment of the present invention.
- FIG. 18 is a perspective view of a lunch container according to a fifth embodiment of the present invention.
- FIG. 19 is a perspective view of a lunch container showing a modification of the suction means shown in FIG.
- FIG. 20 is a sectional view of a lunch container showing another modification of the suction means shown in FIG.
- Fig. 21 shows a tree constituting a lunch box showing still another modification of the adsorption means. It is sectional drawing of a fat sheet.
- FIG. 22 is a perspective view of a lunch container according to a sixth embodiment of the present invention.
- FIG. 23 is a sectional view of the lunch container shown in FIG.
- FIG. 1 is a block diagram of an apparatus for manufacturing a long-term storable lunch according to a first embodiment of the present invention.
- a lunch container is manufactured by a vacuum forming mechanism (not shown). That is, a sheet or a film thinly formed of a resin is set in a molding die formed in the shape of a lunch container and is evacuated to manufacture a large amount of the lunch container 1. For example, about 10 lunch containers 1 are manufactured per second.
- a plurality of the vacuum-formed lunch containers may be connected, or may be individually cut off. When a plurality are continuous, the lunch containers are individually cut off by an appropriate cutting means.
- the lunch container 1 formed as described above is loaded on a pallet 20 shown in FIG. 2, and is conveyed by a belt conveyor.
- the pallet 20 used in the present embodiment has the holding portion 21 formed in a lattice shape, and the lunch container 1 is stored and held in the holding portion 21. .
- the shape of the pallet 20 is deformed according to the shape of the lunch container 1, and the material of the pallet 20 is resin from the viewpoint of lightness. preferable.
- washing-killing A known mechanism may be used as the bacterial mechanism. However, in this embodiment, since it is necessary to wash and sterilize a large amount of lunch containers in a short time, a washing and sterilizing mechanism that satisfies these conditions must be provided.
- the pallet 20 transported on the belt conveyor 31 is transferred to the other two belt conveyors 32, 33, and the two belt conveyors 3 Food is placed on each lunch box of pallet 20 conveyed on 2 and 3 3.
- an automated device may be used, or the arrangement may be performed manually by an operator.
- rice and solid foods for example, fried foods and dumplings
- an automated device can be used. Since it is difficult to prepare the food, it may be done manually by the operator.
- the lunch containers are transported at a relatively slow speed so that the manual serving is extremely facilitated.
- the belt conveyor 31 is arranged on the upper side
- the two belt conveyors 32, 33 are arranged on the lower side
- the opening and closing conveyor 34 is arranged such that these conveyors are ⁇ . They are arranged diagonally.
- the roller conveyor 34 has a number of rollers 36 loosely fitted to a pair of support members 35, and the upper portion of the roller conveyor 34 is swingably attached to the upper belt conveyor 31.
- the upper portion of the conveyor 34 is swung, the lower portion of the roller conveyor 34 is moved from one belt conveyor 32 to the other belt conveyor 33 or to the other. On the contrary, it is configured to be detachable.
- the swing operation of the roller conveyor 34 is performed by an automatic control device (not shown).
- the output is: The let 20 slides on the roller conveyer 34 and is transferred to the lower belt contest 32.
- the roller conveyor 34 is rocked and connected to the other belt conveyor 33, the pallet 20 slides on the roller conveyor 34, The process is shifted to the other belt competition 32. In this way, the pallets conveyed on the belt conveyor 31 can be alternately transferred to the lower belt conveyors 32, 33.
- the pallets 20 are conveyed by the lower belt conveyors 32 and 33, food is put on the lunch container 1 by an operator.
- the speed of the pallet 20 transferred to the lower belt conveyors 32, 33 becomes the same as the upper belt conveyor 3.
- the speed can be reduced to 12 compared to the case of 1, and the speed of the lunch container 1 mounted on the pallet 20 can also be reduced to 1/2.
- the lunch container 1 is loaded on the pallet 20 and the transport speed of the pallet 20 can be freely changed, and the transport speed of the lunch container 1 can be freely changed. Serving of food to the lunch box 1 can be made extremely easy.
- the bento container 1 includes a rice staking section 2 for staking rice, which is a staple food, and a subsampling section 3 for sipping side dishes and salads.
- the part 2 is formed by a wall 4 raised from the bottom wall of the container 1, and the sub-applied part 3 is similarly formed by a wall 5 raised from the bottom wall of the container 1. Have been. These walls 5 are lower than the side walls of the container 1.
- the lunch container 1 is provided with a flange 6 all around.
- a film 7 for covering the upper surface of the lunch container is sealed on the flange 6 by a sealing mechanism (not shown).
- a film having low oxygen permeability and excellent in safety is preferable.
- a polyethylene film, a polypropylene film, a polyester film, a pullulan film, or the like is used.
- a pullulan film is particularly preferable, and this film is composed of a water-soluble, non-gel-forming, viscous polysaccharide, and has characteristics of being edible and having a low oxygen permeability.
- this pullulan film can be tightly bonded to the lunch container 1, it has an advantage of being excellent in sealing properties. Also, if the lunch container 1 is sealed with this pull-run film, there is also an advantage that it is not necessary to remove the film when heating and heating the lunch box. Next, the air in the lunch container 1 is deaerated, and the inside of the lunch container 1 is filled with an inert gas.
- the lunch container 1 has a sealing valve 12 as described below so that a large amount of the lunch container 1 can be replaced with the inert gas in a short time. That is, in the present embodiment, a gas filling portion 10 for filling the space in the container 1 with an inert gas is provided at a joint portion between the flange 6 and the film 7, and at the time of filling the inert gas. An air deaeration unit 11 for discharging air from the container is provided.
- the gas filling section 10 and the air deaeration section 11 will be described with reference to FIGS. 10 and 11 shown in the third embodiment.
- a sealing valve 12 is fitted between the flange 6 and the film 7.
- the sealing valve 12 includes a pair of valve bodies 13a and 13b, and is formed of a flexible resin. Therefore, when inserted between the pair of valve bodies 13a, 13b, the inert gas filling pipe 14 connected to an inert gas supply source (not shown), the valve bodies 13a, 1 3b is radiused by an amount that allows the passage of the filling tube 14, and the periphery of the filling tube 14 is in close contact with these valve bodies 13a and 13b. Therefore, the gas can be charged into the internal space of the container 1 through the inert gas charging pipe 14 without leaking the gas from the internal space of the container 1. On the other hand, when the inert gas filling pipe 14 is removed, the pair of valve bodies 13a and 13b are in close contact with each other and can be maintained without leaking gas from the internal space of the container 1.
- the air deaeration unit 11 is also provided with a sealing valve 15 configured similarly to the sealing valve 12 of the gas filling unit 10. Therefore, when the air deaeration pipe 16 is inserted between the sealing valves 15, the sealing valve 15 is brought into close contact with the periphery of the air deaeration pipe 16, and the air deaeration pipe 16 passes through. The air can be exhausted through this air deaerator 16. On the other hand, when the air deaeration pipe 16 is removed, the sealing valve 15 Air can be maintained without leaking from the compartment.
- the inert gas filling pipe 14 and the air degassing pipe 16 are inserted between the sealing valves 12 and 15, respectively. Since the surroundings of the filling pipe 14 and the degassing pipe 16 are closely adhered by the sealing valves 12 and 15, respectively, gas or air is maintained without leaking from the sealing valves 12 and 15. State.
- the air inside the container 1 is discharged from the degassing pipe 16.
- a predetermined time severeal seconds
- the inside of the container 1 is replaced with the inert gas from the air.
- the filling pipe 14 and the degassing pipe 16 are removed, but the internal space of the container 1 is kept airtight by the sealing valves 12 and 15.
- the inert gas can be filled in the lunch box 1 by an extremely simple filling operation, the filling operation can be completed in a short time (for example, several seconds). .
- the sealed lunch box 1 by filling the sealed lunch box 1 with an inert gas and storing the food in an inert gas atmosphere, the oxidation and respiration of food can be suppressed, and the evaporation of food moisture can be prevented. As a result, it is possible to not only prevent food spoilage and the like, but also to produce a large amount of bento that can be stored for a long time without deteriorating the freshness, flavor, and aroma of food.
- the inert gas is, for example, nitrogen gas, and it is needless to say that other gases may be used. In short, any gas can be used as long as it can suppress food oxidation and respiratory action.
- the inert gas filling part 10 and the air degassing part 11 of the lunch container 1 are completely sealed, One one
- the sealed lunch container 1 may be further filled in a bag (not shown), and the bag may be filled with an inert gas and sealed.
- the lunch container may be filled with an inert gas while cooling the lunch container to a predetermined temperature.
- the sealed lunch box is filled with an inert gas, and the food is stored in an inert gas atmosphere, thereby oxidizing and oxidizing food. It can suppress the respiratory action and also suppress the evaporation of water in food, so that it can not only prevent food decay, etc., but also can be stored for a long time without deteriorating the freshness, flavor and aroma of food Lunch can be manufactured in large quantities.
- FIG. 4 is a perspective view of a lunch box container used in the lunch box manufacturing apparatus according to the present embodiment
- FIG. 5 is a schematic view of the lunch box manufacturing apparatus according to the present embodiment
- FIG. 6 is a seal shown in FIG.
- FIG. 7 is a cutaway perspective view of each gas chamber.
- the lunch container 1 used in the present embodiment is made of a synthetic resin, and is a rice staking section 2 for simmering rice as a staple food, and a side dish for serving side dishes and salads. It consists of Appendix 3.
- the main serving portion 2 is to rise from the bottom wall of the container 1.
- the sub-applied portion 3 is defined by a wall 5 rising from the bottom wall.
- the wall 4 and the wall 5 are formed at substantially the same height, and are lower than the height of the side wall of the container 1.
- the bento container 1 is provided with rice cooked in the main serving portion 2 of the container 1 by an automatic cooker (not shown) or manually by an operator, while the secondary serving portion 3 of the container 1 is provided.
- Serve side dishes such as croquettes and grilled fish.
- the serving of the side dishes may be performed by an automatic side dish laying apparatus or may be performed manually by an operator.
- a flange 6 is formed on the outer periphery of the side wall of the lunch container 1. As described later, after filling the lunch container 1 with the inert gas, the film 6 is sealed with the flange 6.
- the lunch box manufacturing apparatus is provided with four gas chambers 51, 52, 53, 54 for filling an inert gas into the lunch box. It is. Further, a belt conveyor 55 (transporting means) is provided for sequentially transporting the lunch container 1 on which food is placed in each of the gas chambers 51 to 54.
- These gas chambers 51 to 54 are partitioned by an inert gas air curtain. That is, the first gas distribution walls 51a, 52a, 53a, 54a, 55a through which the inert gas flows are provided in each of the gas chambers 51 to 54.
- the second gas distribution wall 51b, 52b, 53b, 54b, 55b is provided on the belt conveyor 55 side so as to face the gas distribution wall 11a-l5a. .
- An inert gas is supplied to the first gas distribution walls 51a to 55a, and the pressure of the first gas distribution walls 51a to 55a is increased to increase the pressure of the first gas distribution walls 51a to 55a. 5 5 a Exhaust the active gas.
- each of the gas chambers 51 to 54 can be partitioned by the flow of the inert gas.
- the configuration in which the gas chambers 51 to 54 are partitioned by an air curtain will be described in further detail.
- the first gas distribution walls 51 a to 55 a on the side from which the inert gas is blown out are arranged above the belt conveyor 55 so as to protrude to both sides of the conveyor 55.
- the second gas flow walls 51b to 55b on the side where the inert gas is sucked are arranged on both sides of the conveyor 55. Therefore, the inert gas blown out from the first gas distribution walls 51a to 55a is discharged from the center as shown by the arrow in FIG. While flowing, the gas that has flowed out from the ends of the first gas flow walls 51a to 55a flows downward as it is. This constitutes an air curtain that partitions each gas chamber.
- a space is formed between the side wall 25 partitioning each gas chamber and the belt conveyor 55, and there is a possibility that the inert gas may leak through this space. Therefore, a partition plate 26 having one end fixed to the side wall 25 and the other end mounted on the belt conveyor 55 is provided.
- the partition plate 26 is formed of an elastic material such as rubber so that inert gas does not leak due to the vibration of the belt conveyor 55. Thus, leakage of the inert gas through the space between the side wall 25 and the conveyor 55 can be prevented.
- a configuration in which gas chambers 51 to 54 are partitioned by air curtains May have the following configuration. That is, as shown in FIG. 8, the first gas flow walls 51a to 55a on the side from which the inert gas is blown out are arranged on the side of the conveyor 55, and the first gas flow walls 51a to 55a are opposed to this. The second flow walls 51b to 55b on the active gas suction side are also arranged beside the conveyor 55. Therefore, the inert gas blown out from the first gas distribution walls 51a to 55a flows across the conveyor 55 as shown by the arrow in FIG. The gas is sucked by 51b to 55b, whereby each gas chamber 51 to 55 is partitioned by an air curtain. In this case, the upper part of the air curtain is partitioned by the fixed wall 51.
- the gas chambers 51 to 54 located on the downstream side where the lunch container 1 is conveyed are set so that the concentration of the inert gas gradually increases stepwise.
- a charging means for filling the chambers 51 to 54 with an inert gas is provided.
- the concentration of the inert gas in the gas chamber 51 is set at 85%
- the concentration of the gas chamber 52 is 95%
- the concentration of the gas chamber 0.53 gas seal chamber
- the concentration of the gas chamber 54 is set lower than that of the gas chamber 53, for example, 90%.
- the gas chamber 54 is for maintaining the concentration of the gas chamber 53 at a predetermined level.
- this charging means includes suction pipes 57, 58, 59, 60 for sucking air in each gas chamber in each gas chamber 51 to 54.
- introduction pipes 61, 62, 63, and 64 for introducing inert gas are provided in each of the gas chambers 51 to 54.
- These introduction pipes 41 to 44 are connected to an inert gas distributor 45.
- This inert gas The distributor 45 functions to adjust and distribute the concentration of the inert gas to each of the inlet pipes 61 to 64.
- the inert gas may be any gas that can suppress food oxidation and respiratory action, for example, nitrogen gas.
- the above-mentioned film 7 is sealed on the flange 6 of the lunch box 1 to hermetically close the lunch box 1.
- a sealing device 65 sealing means
- the gasket 53 filled with inert gas by the inert gas atmosphere in the gas chamber 53 (gas / seal chamber) where the concentration of the inert gas is the highest is moved up and down by the sealing device 65. Therefore, it seals.
- the lunch box 1 on which food is placed is transported by the belt conveyor 55 in the gas chamber in which the concentration of the inert gas is gradually increased, so that the concentration of the inert gas in the lunch box is reduced.
- the gas chamber 53 gas / seal chamber
- the concentration of the inert gas is the highest
- the air in the lunch container 1 can be completely replaced with the inert gas, and the bento
- the container 1 can be filled with an inert gas.
- the lunch box 1 in this state is sealed with the film 7 by the sealing device 65, and then the sealed lunch box 1 is passed through the gas chamber 54.
- the gas chamber 54 is for maintaining the concentration of the gas chamber 53 at a predetermined level.
- the present embodiment is not limited to the above, and in particular, there are no particular restrictions on the shape of the filling means for setting the concentration in the gas chamber to a predetermined level, the shape of the lunch container, and the like.
- the lunch box is transported in the gas chamber in which the concentration of the inert gas has been gradually increased, so that the inert gas in the lunch box is reduced.
- the air in the lunch container can be completely replaced with inert gas, and the inert gas is filled in the lunch container.
- the lunch container 1 in this state is sealed by a sealing means. Therefore, a large number of lunch containers can be continuously and quickly filled with the inert gas, and the inert gas is not completely filled in the lunch containers, and the inert gas is not sufficiently filled. I have never said. As a result, it is possible to mass-produce lunches that can be stored for a long time.
- FIG. 9 is a perspective view of a lunch container according to a third embodiment of the present invention
- FIG. 10 is a cross-sectional view of the lunch container shown in FIG. 9,
- FIG. 11 is a sealing valve shown in FIG. It is an expanded sectional view of.
- the lunch container 1 is composed of a rice-plated portion 2 for serving rice as a staple food, and a side-plated portion 3. It is defined by a wall 4 rising from the bottom wall of the container 1. Similarly, the sub-applied portion 3 is defined by a wall 5 rising from the bottom wall of the container 1. These walls 4 and 5 are lower than the side wall of the container 1. " Further, the lunch container 1 according to the present embodiment is provided with a flange 6 on the entire periphery thereof. The flange 6 is sealed with a film 7 covering the front of the lunch container. This sealing means is not particularly limited as long as it is known.
- a gas filling portion 10 for filling the space in the container 1 with an inert gas is provided at a joint portion between the flange 6 and the film 7, and at the time of filling the inert gas.
- An air deaeration unit 11 for discharging air from the container is provided.
- the sealing valve 12 is fitted between the flange 6 and the film 7.
- the sealing valve 12 includes a pair of valve bodies 13a and 13b, and is formed of a flexible resin. Therefore, an inert gas filling pipe connected to an inert gas supply source (not shown) 14 force ⁇
- the valve bodies 13a, 13 b is bent by an amount that allows the filling pipe 14 to pass through, and the periphery of the filling pipe 14 is in close contact with the valve bodies 13a and 13b. Therefore, the gas can be charged into the internal space of the container 1 through the inert gas charging pipe 14 without leaking the gas from the internal space of the container 1.
- the pair of valve bodies 13 a and 13 b can be kept in close contact with each other at 5: the gas can be maintained without leaking from the internal space of the container 1. it can.
- the air deaeration unit 11 is also provided with a sealing valve 15 configured similarly to the sealing valve 12 of the gas filling unit 10. Therefore, air degassing When the pipe 16 is inserted between the sealing valves 15, the sealing valve 15 is allowed to pass through the air degassing pipe 16 while being in close contact with the periphery of the air degassing pipe 16. Air can be exhausted through the air degassing tube 16. On the other hand, when the air discharge pipe 16 is removed, the sealing valve 15 can be maintained without leaking air from the internal space of the container 1.
- the inert gas filling pipe 14 and the air degassing pipe 16 are inserted between the sealing valves 12 and 15, respectively. Since the surroundings of the filling pipe 14 and the degassing pipe 16 are closely adhered by the sealing valves 12 and 15, respectively, gas or air is maintained without leaking from the sealing valves 12 and 15. State.
- the filling of the inert gas is started from the inert gas filling pipe 14, the air inside the container I is discharged from the degassing pipe 16.
- a predetermined time a few seconds
- the inside of the container 1 is replaced with the inert gas from the air.
- the filling pipe 14 and the degassing pipe 16 are removed, but the internal space of the container 1 is kept airtight by the sealing valves 12 and 15.
- the inert gas can be filled in the lunch box 1 by a very simple filling operation, the filling operation can be completed in a short time (for example, several seconds). It is possible to mass produce long-lasting lunches.
- the inert gas is, for example, nitrogen gas, and it is needless to say that other gases may be used.
- gas that can suppress food oxidation and respiratory action: e is sufficient.
- a sealing valve 12 has a shape in which a tube is flattened and is formed of a flexible resin. Also in this case, when the inert gas filling pipe 14 is inserted into the sealing valve 12, the sealing valve bends as much as the filling pipe 14 can be inserted, and the filling pipe 14 Is in close contact with the sealing valve 12. Therefore, the gas can be charged into the internal space of the container 1 via the inert gas charging pipe 14 without causing gas to leak from the internal space of the container 1. On the other hand, when the inert gas filling tube 14 is removed, the sealing valve 12 comes into close contact with the container 1 and can be maintained without leaking gas from the internal space of the container 1.
- the sealing valve 12 has an inlet-side sealing portion 66, a gas chamber 67, and an outlet-side sealing portion 68, and is formed of a flexible resin. ing.
- the inlet side sealing portion 66 extends radially to allow passage of the filling tube 14, and the filling tube 14 Is in close contact with the inlet side sealing portion 66, and the end of the filling pipe 14 is in a state of protruding into the gas chamber 67.
- the outlet side sealing portion 68 is opened, and the inert gas is introduced into the container 1 ⁇ through the introducing pipe 14.
- the space can be filled.
- the degree of flexibility of the inlet-side sealing portion 66 is set so that the inlet-side sealing portion 66 is in a closed state.
- the inlet-side sealing portion 66 and the outlet-side sealing portion 68 are in a sealed state, and the inner space of the container 1 is closed. Leakage of the charged gas can be prevented. Therefore, as described above, since the inert gas can be filled in the lunch container 1 by an extremely simple filling operation, the filling operation can be completed in a short time (for example, several seconds), Therefore, it is possible to mass-produce lunches that can be stored for a long time.
- the inert gas filling pipe when the inert gas filling pipe is inserted into the sealing valve, the inert gas is discharged without leaking the gas from the space in the lunch container. While the lunch box ⁇ can be filled, when the inert gas filling pipe is removed from the sealing valve after this filling, the space inside the lunch box is kept airtight and no gas leaks .
- the inert gas can be filled in the valve container by a very simple filling operation, the filling operation can be completed in a short time (for example, a few seconds), and therefore, can be stored for a long time. Possible lunches can be mass-produced.
- FIG. 15 is a perspective view of a lunch container according to a fourth embodiment of the present invention
- FIG. 16 is a cross-sectional view of the lunch container shown in FIG. 15, and
- FIG. It is sectional drawing of a film.
- the lunch container 1 is composed of a rice-plated portion 2 for placing rice as a staple food, and a sub-plated portion 3 for placing side dishes and salads.
- the main serving portion 2 is defined by a wall 4 rising from the bottom wall of the container 1
- the sub-applied portion 3 is defined by a wall 5 raised from the bottom wall of the container 1.
- the lunch container 1 is provided with a flange 6 on the entire periphery thereof.
- a film 7 is sealed to the flange 6.
- This sealing means is not particularly limited as long as it is known.
- the film 7 is provided with self-sealing members 69 and 70.
- the self-sealing member 69 is specifically a low-hardness and sticky substance.
- a light-receiving adhesive substance silicone rubber, silicone gel is used. It is.
- the self-sealing member 70 is used to degas air from the internal space of the container 1 when filling with an inert gas, and the container 1 is inserted when the air discharge needle 72 is inserted. While the internal space of the container 1 is kept airtight, when the air discharge needle 72 is removed, the internal space of the container 1 is kept airtight.
- the self-sealing member 70 is also formed of the same material as the self-sealing member 69.
- the inert gas filling needle 71 and the air discharge needle 72 are inserted through the self-sealing members 69, 70, respectively.
- Self-sealing members around charging needle 7 1 and discharge needle 7 2 9 since it is in close contact, the gas or air is maintained without leaking from the self-sealing members 69, 70.
- charging of the inert gas is started from the inert gas charging needle 71, and the air inside the container 1 is discharged from the discharging needle 72.
- a predetermined time severeal seconds
- the internal space 1 can be kept airtight by the self-sealing members 69, 70.
- the inert gas can be filled in the lunch box 1 by a very simple filling operation, the filling operation can be completed in a short time (for example, several seconds). It is possible to mass produce long-lasting lunches.
- the inert gas is, for example, nitrogen gas, and it is needless to say that other gases may be used. In short, any gas that can suppress food oxidation and respiratory action may be used. .
- a film 7 for sealing the lunch container 1 is formed from a laminated film in which first layers 23 and second layers 24 are alternately laminated.
- the first layer 23 is a silicone rubber or a silicone gel exhibiting the above-described self-sealing property
- the second layer 24 is a polyethylene terephthalate film.
- the internal space of the container 1 is kept airtight, and the inert space from the filling needle 71 to the internal space of the container 1 is maintained. Inert gas while allowing gas filling When the filling needle 71 is removed, the internal space of the container 1 can be kept airtight. The same applies to the air discharge needle 72. Therefore, if the lunch container is sealed with the film 7, even if the inert gas filling needle 71 and the air discharge needle 72 are pierced into any part of the film 7, the inert gas is removed. It can be filled in the lunch container 1.
- the inert gas is filled in the lunch container 1 by an extremely simple filling operation.
- the filling operation can be completed in a short time (for example, a few seconds), so that a long-term storage lunch can be mass-produced.
- the film may be used not only to directly seal the lunch container 1 as shown in FIG. 15 but also to wrap the lunch container in a bag shape.
- the film is provided with the self-sealing member as described above, or the film is formed from the first layer having the self-sealing property as described above.
- the inert gas-filled needle is passed through this self-sealing member or film, the inert gas is not leaked from the space inside the lunch container, and the inert gas is discharged into the lunch container.
- the inert gas filling needle is removed after filling, the space inside the lunch box is kept airtight and gas does not leak.
- the inert gas can be filled in the lunch container by an extremely simple filling operation, This filling operation can be completed in a short time (for example, a few seconds), and therefore, a long-term storage lunch box can be mass-produced.
- a fifth embodiment of the present invention will be described.
- FIG. 18 is a perspective view of a lunch container according to a fifth embodiment of the present invention.
- the lunch container 1 according to the present embodiment is composed of a portion 2 for placing rice, which is a staple food, and a portion 3 for placing side dishes, such as side dishes and salads.
- the main serving portion 2 is defined by a wall 4 rising from the bottom wall of the container 1
- the sub-serving portion 3 is similarly defined by a wall 5 rising from the bottom wall of the container 1. It is defined by These walls 5 are lower than the side walls of the container 1.
- the lunch container 1 is provided with a flange 6 on the entire periphery thereof, and the flange 6 is sealed with a film 7 covering the front surface of the lunch container.
- This sealing means may be any known one, and is not limited at all.
- a gas filling portion 10 for filling the space in the container 1 with an inert gas is provided at a joining portion of the flange 6 and the film 7, and a container is provided at the time of filling the inert gas.
- An air deaeration unit 11 for deaeration of the air inside is provided.
- the sealing valve 12 is fitted between the flange 6 and the film 7, as shown in FIGS. 10 and 11 in the third embodiment.
- the sealing valve 12 includes a pair of valve bodies 13a and 13b, and is formed of a flexible resin. Therefore, when an inert gas charging pipe 14 connected to an inert gas supply source not shown is inserted between the pair of valve bodies 13a and 13b, the valve body 13 a, 1 3 b has a radius corresponding to the passage of the filling tube 14 and is in close contact with the periphery of the filling tube 14. Therefore, the gas can be charged into the internal space of the container 1 through the inert gas filling pipe 14 without leaking the gas from the internal space of the container 1. On the other hand, when the inert gas filling pipe 14 is removed, the pair of valve bodies 13a and 13b are in close contact with each other, and can maintain gas without leaking from the internal space of the container 1.
- the air deaeration section 11 is also provided with a sealing valve 15 configured similarly to the sealing valve 12 of the gas filling section 10. Therefore, when the air deaeration pipe 16 is inserted between the sealing valves 15, the sealing valve 15 allows the air deaeration pipe 16 to pass while being tightly fitted around the air deaeration pipe 16, The air can be deaerated through the air deaeration tube 16. On the other hand, when the air deaeration pipe 16 is removed, the sealing valve 15 can be maintained without leaking air from the internal space of the container 1. ,
- the inert gas filling pipe 14 and the air degassing pipe 16 are inserted between the sealing valves 12 and 15, respectively.
- the surroundings of the filling pipe 14 and the degassing pipe 16 are tightly sealed by the sealing valves 12 and 15, respectively, so that gas or air is maintained without leaking from the sealing valves 12 and 15.
- the filling of the inert gas is started from the inert gas filling pipe 14, and the air inside the container 1 is degassed from the degassing pipe 16.
- a predetermined time a few seconds
- the inside of the container 1 can be replaced with the inert gas from the air.
- the filling pipe i4 and the degassing pipe 16 are removed, but the internal space of the container 1 can be kept airtight by the sealing valves 12 and 15.
- the lunch box sealed by the film 7 is used.
- the container 1 can be filled with an inert gas, and food can be stored in an inert gas atmosphere. Therefore, the oxidation and respiratory action of food can be suppressed, and the evaporation of water in food can be suppressed. As a result, not only the decay of food can be prevented, but also the freshness, flavor, and aroma of food can be degraded. Food can be stored for a long time.
- the inert gas is filled in the lunch container 1 by an extremely simple filling operation, so that the filling operation can be performed in a short time (for example, several seconds). It can be finished and therefore mass-produced lunches that can be stored for a long time.
- the inert gas is, for example, nitrogen gas, and it is needless to say that other gases may be used. In short, any gas that can suppress food oxidation and respiratory action may be used.
- an adsorbing means for adsorbing and fixing ethylene gas generated from vegetables, fruits and the like is provided in the lunch box 1.
- This adsorbing means is, for example, an adsorbent powder 27 which is arranged in the sub-applied section 3 and stored in a bag, as shown in FIG.
- the adsorbent powder 27 is, for example, coral powder, zeolite powder, zeolite-supported silver powder, Otani stone powder, or acetate powder.
- a powder in which zeolite supports silver it can also exhibit antibacterial and bactericidal effects.
- the adsorbent powder 27 adsorbs the ethylene gas generated from the vegetables, fruits, and the like provided in the sub-serving section 3. As a result, ethylene gas can be removed from the space inside the lunch box 1, preventing the aging of vegetables and fruits from being promoted, and Can be kept fresh enough. Therefore, the lunch container according to the present example is excellent in the preservability of vegetables and fruits.
- the adsorbing means may be an adsorbent powder 22 that has been molded into a solid shape like a unicorn.
- the adsorbent powder 22 is the above-described zeolite powder or the like, and has the same effect as in the above-described case.
- the adsorption means may be an adsorption film 28 mixed with an adsorbent powder.
- This adsorbing film 28 is spread on the sub-serving section 3, on which vegetables, fruits and the like are placed.
- the adsorbent powder is the zeolite powder described above.
- the present inventor conducted an experiment on the storage period of salad using the adsorption film 28.
- the storage period of tomatoes was about 3 days when the adsorption film 28 was not used, but the freshness was maintained for about 6-8 days when the adsorption film 28 was used. I was able to save it.
- the storage period was about 3 days when no film was used, but when the adsorbent film 28 was used, it could be stored while maintaining the freshness for about 10 to 12 days.
- apples could be stored for only 15-20 days when no film was used, but 70-90 days when using adsorbed film 28. I could save it while maintaining it.
- the suction means may be configured as follows. That is, as shown in FIG. 21, a resin sheet 30 is prepared by laminating the above-mentioned adsorption film 28 on a resin base material 29, and this resin sheet 30 is prepared.
- the lunch container 1 may be molded from the container. Even in this case, ethylene gas can be adsorbed, and vegetables and fruits can be stored while being kept fresh.
- the resin base material 29 is a thermoplastic film or the like.
- sealing valve 12 may be other than those shown, and the adsorbent powder is not limited to those illustrated.
- the lunch container ⁇ ⁇ sealed with a film can be filled with an inert gas, and food can be stored in an inert gas atmosphere. Therefore, the oxidation and respiratory action of food can be suppressed, and the evaporation of water in food can be suppressed. Food can be stored for a long time.
- the present invention includes an adsorbent that adsorbs ethylene gas generated from food (vegetables and fruits), the ethylene gas can be removed from the lunch box, and the freshness of these vegetables and fruits can be sufficiently freshened. It can be maintained and has excellent shelf life for vegetables and fruits.
- FIG. 22 is a perspective view of a lunch container according to a sixth embodiment of the present invention
- FIG. 23 is a sectional view of the lunch container shown in FIG.
- the lunch container 1 is composed of a rice-plated portion 2 for placing rice, which is a staple food, and a sub-plated portion 3 for placing side dishes and salads.
- the main serving portion 2 is composed of a wall 4 raised from the bottom wall of the container 1, and
- the filling section 3 is defined by a wall 5 rising from the bottom wall of the container 1. These walls 4, 5 are lower than the side walls of the container 1.
- the lunch container 1 is provided with a flange 6 on the entire periphery thereof.
- a film 7 covering the front of the lunch box is sealed to the flange 6.
- This sealing means is not particularly limited as long as it is known.
- the film 7 is provided with self-sealing members 69 and 70.
- the self-sealing member 69 passes through the self-sealing member 69, the internal space of the container 1 is kept airtight, and the self-sealing member 69 passes from the filling needle 71 to the internal space of the container 1. While the inert gas charging is enabled, the internal space of the container 1 is kept airtight when the inert gas charging needle 71 is removed.
- the self-sealing member 69 is a low-hardness and sticky substance. In consideration of food safety, for example, a light-receiving adhesive substance, silicone rubber, Silicone gel.
- the self-sealing member 70 has the same configuration.
- the inert gas filling needle 71 and the air discharge needle 72 are inserted through the self-sealing members 69, 70, respectively. Since the surroundings of the charging needle 71 and the discharging needle 72 are closely adhered to the self-sealing members 69, 70, the gas or air is maintained without leaking from the self-sealing members 69, 70. c then the state starts Takashi ⁇ inert gas from the inert gas filling needle 71, to discharge the air inside the container 1 from the discharge needle 7 2. As a result, after a predetermined time (several seconds), the inside of the container 1 is replaced with an inert gas from air. it can.
- the internal space of the container 1 can be kept airtight by the self-sealing members 69, 70.
- the inert gas can be filled in the lunch container 1 by a very simple filling operation, the filling operation can be completed in a short time (for example, a few seconds), and therefore, long-term storage is possible. You can mass-produce effective lunches.
- the inert gas is, for example, nitrogen gas, and it is needless to say that other gases may be used. In short, any gas that can suppress food oxidation and respiratory action may be used.
- a storage bag 40 for storing fruits and vegetables particularly requiring freshness is arranged in the auxiliary serving portion 3 of the lunch container 1.
- the storage bag 40 is formed of a film.
- a film having low oxygen permeability and excellent safety is preferable.
- polyethylene film, polypropylene film, polyester Use a film or a bull run film.
- a pullulan film is most preferable, and this pullulan film is composed of a water-soluble, non-gel-forming viscous polysaccharide, and has the characteristics of being edible and having a low oxygen permeability.
- this pullulan film has an advantage that it is not necessary to remove the film when heating and heating the lunch box.
- an adsorption means for adsorbing ethylene gas generated from fruits and vegetables is provided in the storage bag 40.
- This adsorbing means is, for example, adsorbent powder 50 which is formed into a cubic solid as shown in FIG.
- This adsorbent powder 5 0 is, for example, coral powder, zeolite powder, zeolite-bearing silver powder, Otani stone powder, or acetate powder.
- coral powder for example, coral powder, zeolite powder, zeolite-bearing silver powder, Otani stone powder, or acetate powder.
- zeolite powder zeolite-bearing silver powder
- Otani stone powder or acetate powder.
- it can exhibit antibacterial and bactericidal effects.
- the adsorbent powder 50 that adsorbs ethylene gas generated from fruits and vegetables is provided, the ethylene gas can be removed from the storage bag 40, and the freshness of the fruits and vegetables is maintained sufficiently fresh. can do.
- the fruits and the like can be stored in the storage bag 40 to remove ethylene gas, and then the storage bag 40 is placed in the lunch box 1. Therefore, the respiratory action of fruits and vegetables that require particularly freshness can be suppressed from the time of harvesting, and even when fruits and vegetables that require particularly freshness are put on the lunch box 1, these deteriorations can occur.
- it can be stored for a long period of time by effectively preventing corruption or deterioration.
- the adsorbing means may store the adsorbent powder in a bag in a powder state, and may be disposed in the storage bag 40. In this case, the same operation and effect as in the case described above are exhibited.
- the adsorbing means is an adsorbing film mixed with adsorbent powder
- the storage bag 40 may be formed from the adsorbing film.
- the inventor conducted an experiment on the storage period of the salad using this adsorption film.
- the storage period of tomatoes was about 3 days when the adsorption film was not used, but the freshness was maintained for about 6 to 8 days when the adsorption film was used.
- the storage period was about 3 days when no film was used, but when the adsorbed film was used, it could be stored while maintaining the freshness for about 10 to 12 days.
- apples could be stored for only about 15-20 days when no film was used, while freshness could be maintained for about 70-90 days when absorptive film was used. could be saved.
- the suction means may be configured as follows. That is, as shown in FIG. 21 of the fifth embodiment, a resin sheet 30 was prepared by laminating the adsorption film 28 mixed with the adsorbent powder on a resin base material 29.
- the storage bag 10 may be formed from the resin sheet 30. Also in this case, ethylene gas can be adsorbed, and vegetables and vegetables can be stored while being kept fresh.
- the resin base material 29 is a thermoplastic film or the like.
- this embodiment is not limited to the above, and it is needless to say that various modifications are possible, and the material of the storage bag 40 is not limited to the film of the embodiment, and may be another material.
- the sixth embodiment of the present invention is provided with an adsorption means for adsorbing ethylene gas generated from fruits and vegetables, the ethylene gas can be removed from the storage bag.
- Fruits and vegetables can be kept fresh.
- the fruits and the like can be stored in storage bags to remove ethylene gas, and then these storage bags are placed in the lunch box. Therefore, the respiratory action of fruits and vegetables that require freshness can be suppressed from the time of harvesting, and fruits and vegetables that require freshness are added to a lunch box. In this case, it is possible to effectively prevent such deterioration, decay, or deterioration, and to store the material for a long period of time.
- the inside of the lunch box is in an inert gas atmosphere, it can not only prevent decay of other foods, etc., but also can be stored between containers without deteriorating their freshness, flavor, and aroma. .
- the lunch container may be sealed with a film in a seal chamber filled with an inert gas, and the inert gas may be sealed in a non-filled space of the lunch container.
- cooked rice and the like are packed in a lunch box, and the packed box is scraped off while the lunch box is transported by a conveyor. Then, a spare room into which air is sucked and inert gas is blown is blown. After passing, the lunch box is cooled to a temperature of up to 11 ° C in a sealed cooling chamber filled with inert gas, sealed with a film, and the inert gas is filled in the unfilled space of the lunch box. May be enclosed.
- the bento lunch box is filled in the sealed cooling chamber filled with the inert gas.
- the container While the container is cooled to a temperature of 18 ° C. or less, the container may be sealed with a film, and the unfilled space of the lunch container may be filled with nitrogen gas obtained by vaporizing liquid nitrogen.
- the lunch container is passed by a conveyor through a preliminary chamber into which nitrogen gas is introduced.
- nitrogen gas may be sealed while cooling rapidly in the seal cooling chamber, and sealing may be performed with a film.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Food Science & Technology (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Packages (AREA)
- Vacuum Packaging (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP1992/000645 WO1993023290A1 (en) | 1992-05-20 | 1992-05-20 | Device for preparing long preservable box-lunch and lunch box therefor |
US08/185,905 US5697203A (en) | 1992-05-20 | 1992-05-20 | Production unit of long-term preservable lunch and lunch box used for said lunch |
KR1019940700179A KR970010904B1 (ko) | 1992-05-20 | 1992-05-20 | 장기간 보존 가능한 도시락의 제조장치 및 도시락용기 |
CA002113441A CA2113441C (en) | 1992-05-20 | 1992-05-20 | Production unit of long-term preservable lunch and lunch box used for said lunch |
AU17920/92A AU659160B2 (en) | 1992-05-20 | 1992-05-20 | The production of pre-packaged preserved meals |
EP92910503A EP0597097A4 (en) | 1992-05-20 | 1992-05-20 | DEVICE FOR PREPARING VOB HOLDABLE FOODSTUFFS IN CAN AND FOOD CAN FOR THIS. |
CN92104086A CN1042513C (zh) | 1992-05-20 | 1992-05-25 | 制作可长期保存盒饭的装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP1992/000645 WO1993023290A1 (en) | 1992-05-20 | 1992-05-20 | Device for preparing long preservable box-lunch and lunch box therefor |
CA002113441A CA2113441C (en) | 1992-05-20 | 1992-05-20 | Production unit of long-term preservable lunch and lunch box used for said lunch |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993023290A1 true WO1993023290A1 (en) | 1993-11-25 |
Family
ID=25676928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1992/000645 WO1993023290A1 (en) | 1992-05-20 | 1992-05-20 | Device for preparing long preservable box-lunch and lunch box therefor |
Country Status (7)
Country | Link |
---|---|
US (1) | US5697203A (ja) |
EP (1) | EP0597097A4 (ja) |
KR (1) | KR970010904B1 (ja) |
CN (1) | CN1042513C (ja) |
AU (1) | AU659160B2 (ja) |
CA (1) | CA2113441C (ja) |
WO (1) | WO1993023290A1 (ja) |
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WO2006129172A1 (en) * | 2005-05-31 | 2006-12-07 | Vinguard Limited | Preservative device |
JP2011109919A (ja) * | 2009-11-24 | 2011-06-09 | Q P Corp | 容器詰め殺菌サラダ及びその製造方法 |
JP2017043370A (ja) * | 2015-08-24 | 2017-03-02 | 三菱重工食品包装機械株式会社 | 充填密封装置および充填密封方法 |
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US6481185B1 (en) | 1997-01-13 | 2002-11-19 | Raymond G. Buchko | System for modifying the atmosphere within the interior of a package |
US5989613A (en) * | 1997-01-13 | 1999-11-23 | Freshpak, Inc. | Gas packaging method for perishable food products |
DE19753185A1 (de) * | 1997-11-21 | 1999-06-10 | Mannesmann Ag | Transportbox |
US6123925A (en) * | 1998-07-27 | 2000-09-26 | Healthshield Technologies L.L.C. | Antibiotic toothpaste |
GB2340470A (en) * | 1998-08-14 | 2000-02-23 | St Ivel Ltd | Packaging a two-component food product |
GB2340471A (en) * | 1998-08-14 | 2000-02-23 | St Ivel Ltd | Packaging a two-component food product |
US20020043447A1 (en) | 1998-09-03 | 2002-04-18 | John E. Barry | Belt having antimicrobial action |
WO2000026100A1 (en) | 1998-10-29 | 2000-05-11 | Agion Technologies L.L.C. | Antimicrobial plastic closures for drinking containers |
US6296863B1 (en) | 1998-11-23 | 2001-10-02 | Agion Technologies, Llc | Antimicrobial fabric and medical graft of the fabric |
US6436422B1 (en) | 1998-11-23 | 2002-08-20 | Agion Technologies L.L.C. | Antibiotic hydrophilic polymer coating |
US6585767B1 (en) | 1998-11-23 | 2003-07-01 | Agion Technologies, Inc. | Antimicrobial suturing ring for heart valve |
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- 1992-05-20 US US08/185,905 patent/US5697203A/en not_active Expired - Fee Related
- 1992-05-20 CA CA002113441A patent/CA2113441C/en not_active Expired - Fee Related
- 1992-05-20 AU AU17920/92A patent/AU659160B2/en not_active Ceased
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JP2011109919A (ja) * | 2009-11-24 | 2011-06-09 | Q P Corp | 容器詰め殺菌サラダ及びその製造方法 |
JP2017043370A (ja) * | 2015-08-24 | 2017-03-02 | 三菱重工食品包装機械株式会社 | 充填密封装置および充填密封方法 |
WO2017033453A1 (ja) * | 2015-08-24 | 2017-03-02 | 三菱重工食品包装機械株式会社 | 充填密封装置および充填密封方法 |
CN108025898A (zh) * | 2015-08-24 | 2018-05-11 | 三菱重工机械系统株式会社 | 填充密封装置及填充密封方法 |
CN108025898B (zh) * | 2015-08-24 | 2021-02-19 | 三菱重工机械系统株式会社 | 填充密封装置及填充密封方法 |
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Also Published As
Publication number | Publication date |
---|---|
AU1792092A (en) | 1993-12-13 |
CA2113441C (en) | 1999-02-02 |
EP0597097A1 (en) | 1994-05-18 |
EP0597097A4 (en) | 1995-07-05 |
CN1079194A (zh) | 1993-12-08 |
US5697203A (en) | 1997-12-16 |
CN1042513C (zh) | 1999-03-17 |
AU659160B2 (en) | 1995-05-11 |
KR970010904B1 (ko) | 1997-07-02 |
CA2113441A1 (en) | 1993-11-25 |
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