JP5860844B2 - Tofu sealed in a stepped container formed in a two-stage shape and its manufacturing method - Google Patents

Description

  According to the present invention, a plurality of main sealed foods and seasoned subsealed foods are accommodated in the lower and upper container parts of the stepped container formed in at least two stages and heat-sealed and sealed in a peelable manner by a film-like lid. With respect to corrugated foods, in particular, it is possible to eat with the corrugated containers as they are, without removing the lid material in turn and then attaching the upper subsealed food to the lower main sealed food and transferring it to a separate container. The present invention relates to a multi-stage sealed food that is excellent in performance, convenience and hygiene.

  Conventionally, as a typical example in which two kinds of foods are accommodated in one container, natto is accommodated in a lower portion of a foamed polystyrene or plastic container having a flange around the upper surface opening, and a partition material such as a plastic film is disposed on the upper surface. A natto pack product that is covered without being bonded, contains spicy packs and soup packs at the upper part of the partitioning material, and a lid such as plastic or paper film is peelably bonded and sealed to the upper surface of the flange of the upper surface opening. Are known.

  On the other hand, for tofu in containers that are sealed and sealed with a lid such as a plastic film, remove the lid and move to a separate container to add separately prepared supplements such as ginger, pungent, soy sauce or soy sauce. It is common to eat, but for example in nursery school, kindergarten, school or various workplaces and companies, such as tofu in a container is transferred to another container and eats by adding separately prepared side foods This is troublesome and has problems such as improvisation, convenience and hygiene.

  In particular, in hospitals and elderly care facilities, etc., it is prohibited for hygiene to cut and eat as it is with a kitchen knife such as raw tofu, which restricts highly nutritious ingredients such as tofu for hospitalized sick and elderly people. Was envied.

  Moreover, as shown in FIGS. 7 (a) and 7 (b), as a lidded packaging container with an improved lid mounting structure and improved sealing performance, A lid receiving step 107 is formed on the inner side surface near the upper edge of the container body 102, the upper periphery of the step 107 is surrounded by a reverse tapered portion 106, and is folded back to the side wall 114 of the lid 104. The formed stepped portion 116 is opposed to the stepped portion 107 of the container body 102, and the stepped portion 116 is formed with a reverse tapered portion 117 that rises upward, and a packaging container 101 that forms a flange portion 118 at the tip thereof. It has been proposed (Patent Document 1).

  The container main body 102 and the lid 104 are detachably fitted through the respective reverse taper portions 106 and 117 so that the sealing property and handling property of the container 101 with the peripheral side frame 103 are maintained.

  The container main body 102 includes a bottom plate 109 and a side wall 110 that rises obliquely upward from the periphery of the bottom plate 109 to the outside. Further, a step 107 bent toward the outside of the container is formed at the upper end of the side wall 110. A reverse taper portion 106 erected so that the opening edge becomes smaller upward from the step portion 107, a flange portion 108 formed by bending the tip of the reverse taper portion 106 outward, and a flange And an outer surface portion 163 formed by bending the portion 108 downward. An engagement side portion 111 is formed at the outermost lower end of the outer surface portion 163. As shown in FIG. 7B, the engagement side portion 111 is configured to engage with a receiving groove 105 formed above the inner surface of the peripheral side frame 103. Thereby, the container main body 102 and the peripheral frame 103 are firmly engaged and fixed.

  Since the flange portion 108 of the container body 102 protrudes upward from the upper edge of the peripheral frame 103, when stacking the packaging containers 101 with the lid 104 removed, the peripheral side of the lower packaging container 101 is used. The upper end surface of the frame 103 is stacked so that the lower end surface of the peripheral side frame 103 of the upper packaging container 101 is on the container 103. In this case, the container fitting protrudes upward from the upper edge of the peripheral side frame 103 The portion engages with the peripheral side frame 103 of the packaging container 101 stacked on top, and prevents the stacked packaging container 101 from shifting laterally.

  Further, as a paper container 201 that improves functions such as barrier properties, water resistance, retort resistance and the like and can cook different contents at the same time, as shown in FIGS. The inner surface resin film 203 laminated on the inner surface of the container 201 is slightly larger than the inner surface of the container 201, and the outer surface resin film 204 laminated on the outer surface of the container 201 is slightly larger than the outer surface of the container 201. 203 and the outer surface resin film 204 are bonded so as to cover the paper end of the flange 213, and are a two-stage container 210 having two containers, and the other container is provided at the lower part of one container. The upper container 211 and the lower container 212 are respectively sealed, and the upper container 211 is sealed and sealed with the lid 207, and the outer surface resin film 20 of the flange 213 of the upper container 211 is sealed. When, to adhere the inner surface resin film 203 of the flange 213 of the lower container 212, two-stage vessel 210 to seal the lower container 212 has been proposed (Patent Document 2).

  Since the contents put into the two-stage container 210 can store different kinds of contents in the upper container and the lower container, they can be used for rice and side dishes, curry, stew, and other cooked side dishes. Industrial materials can be used as products by mixing two-component adhesives or by mixing two types.

  However, the packaging container 101 described in Patent Document 1 has a complicated shape in which the shape of the peripheral side frame 103, the bottom plate 109, and the lid 104 has a planar uneven combination surface. Making a two-stage container in which two packaging containers 101 are stacked with the lid 104 removed for storage in the lower container increases the processing cost and lacks design flexibility due to the heavy construction without compactness. .

  A paper container 201 described in Patent Document 2 has a complicated shape in which paper 202, an inner surface resin film 203, and an outer surface resin film 204 are laminated, and stores different contents in an upper container 211 and a lower container 212, respectively. Therefore, the use of the two-stage container 210 in which two paper containers 201 are stacked has a problem that the processing cost increases and the degree of freedom of design is lacking due to the heavy structure without compactness.

Utility Model Registration No. 3140543 JP 2012-81999 A

  The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide an inexpensive and simple structure with a degree of design freedom, and a lower stage of a stepped container formed in at least two stages. Different main sealed foods and seasoned sub-sealed foods are stored in the upper container part, heat sealed so that they can be peeled off by a film-like cover material, and then sealed in the upper container part after the cover material is peeled off in sequence. An object of the present invention is to provide a multi-stage sealed food excellent in instant property, convenience, and hygiene that can be eaten using the stepped container as it is without being transferred to another container with a portion of the secondary sealed food.

  In order to achieve the above object, the present invention 2Tofu sealed in a stepped container formed in a step shape The manufacturing method isFrom a plastic molded body of a thermoplastic resin sheetBecomeTopButOpenAndTop PartOutsideWhatBendTheFormed flangeas well asInside the side wallDirectionFold intoTheHas an intermediate step formedAnd provided between the intermediate step portion and the flange portion.With the upper compartment,DuringA lower housing portion having a side wall and a bottom portion connected to the lower portion of the interstage portion, andRuPre-sterilization and cleaningIn a two-stage shape Been formedWith stepped container,underStored in the stage housing,DuringHeat-sealable with a film-like lower lid on the upper surface of the interstageIsSealedTofuWhen,underIs housed in the upper housing section on the stage housing section.TheHeat seal that can be peeled off by a film-like upper lid on the top of the lungeIsSealed Select from ginger, pungent, shavings, soy sauce, soy sauce, curry, kimchi, or chocolate BeSupplementary food, and,UpAfter peeling the step lid and lower lid sequentially,underBeans in the tray RotEat food in a stepped container as it is without adding the secondary sealed food in the upper container to the container.What can be doneIt is characterized by.
 

  The stepped container has a cross-sectional shape of any size of a circle, an ellipse, a triangle, a quadrangle, or a polygon.

The method for producing tofu sealed in a stepped container formed in a two-stage shape according to the present invention is thermoplastic. It consists of a plastic molded body of resin sheet, with the upper end open and the upper end bent outward. An intermediate step portion formed by bending the flange portion and the intermediate portion of the side wall inwardly; The upper stage accommodating part provided between the part and the flange part, and the side connected to the lower part of the intermediate stage part A container sterilization step for sterilizing and cleaning a stepped container comprising a lower container having a wall and a bottom; Stir the soy milk, which is the raw material for tofu, together with the coagulant in the lower container of the stepped container. Lower stage storage part to store the soymilk storage process and the upper part of the intermediate step part is peeled off by a film-like lower cover material The lower housing part sealing step for heat-sealing and sealing the lower housing part, and the soy milk in the lower housing part Lower stage soymilk coagulation process to be solidified, and stage in which the soymilk in the sealed lower stage storage part is coagulated Sterilize and clean the entire stepped container to sterilize and wash the entire stepped container, and ginger on the upper stepped container, Subsealing selected from pungent, shavings, soup, soy sauce, curry, kimchi, or chocolate Contains food and heat-seals the upper surface of the flange so that it can be peeled off by a film-like upper lid. A sub-sealing food filling stage for sealing the upper storage portion is sequentially provided.

  In addition, any edible tool including a spoon, a fork, a toothpick, or a chopstick is further selectively stored in the upper storage portion.

Furthermore, the tofu sealed in the stepped container is partially manufactured by a manufacturing process including the manufacture of the stepped container or It is characterized in that it is produced on an automated line as a whole.

  According to the present invention, a design comprising a plastic molded body of a thermoplastic resin sheet, and a stepped container comprising an upper stage accommodating part and a lower stage accommodating part can be easily and selectively set to an arbitrary size and three-dimensional shape with an inexpensive simple structure. There are different degrees of freedom, and different main sealed foods and seasoned sub-sealed food items are stored in the lower and upper container parts, respectively, and heat-sealed and sealed with a film-like cover material so that it can be preschooled, kindergarten, school , In hospitals, nursing homes, offices and various workplaces, and in general households, each container is peeled off, and then the main sealed food in the lower container is attached to the secondary sealed food in the upper container. Immediate and convenient to eat using a stepped container as it is without moving to the hospital, especially in hospitals and elderly care facilities etc. There is an effect capable of providing a plurality of stages sealing food excellent sex.

  Main sealed food and side sealed food are various tofu and ginger, pungent taste, shavings, soy sauce, soy sauce, curry, kimchi, chocolate combination, chickpea and curry combination, tokoroten and two cups of vinegar, green seaweed, mustard, black Combination of honey, chocolate, various yogurt powder, honey, black honey, chocolate combination, various jelly and black honey, chocolate, various rice cakes, matcha tea, cream combination, various rice cakes and various rice cakes, kinakome, sugar soy sauce, black honey , Chocolate, natto combination, nectar and matcha, cream combination, spaghetti and various ingredients, various rice and side dishes and other cooked side dishes, laver, curry, stew combinations, various noodles or soba and various soups, Because it is set by selecting from various types of seaweed, combinations of various ingredients, etc., it is a multi-stage sealed food that is excellent in instant food, convenience and hygiene of various foods There is an effect that can offer.

  In addition, because the soy milk that is the raw material for tofu, the main sealed food, can be stored in the lower container of the stepped container and fermented tofu can be produced through a series of manufacturing processes, the taste, nutrition, and intestinal environment There is an effect that it is possible to provide a multi-stage sealed food excellent in instant property, convenience and hygiene, which incorporates the characteristics of fermented foods that improve immunity, diet, anti-aging properties, storage stability, and the like.

  In addition, any of edible utensils such as spoons, forks, toothpicks, and chopsticks is selectively accommodated in the upper compartment, so that various foods can be transferred to separate containers or prepared separately. There is an effect that the instantness, convenience, and hygiene that can be eaten using a stepped container as it is are further improved.

Furthermore, since the production process of the multi-stage sealed food of the present invention is partially or entirely automated including the production of stepped containers, the production efficiency has been improved without human intervention as much as possible, and the cost reduction associated therewith. This has the effect of further improving economic efficiency and hygiene.
The objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description and the accompanying drawings.

It is a perspective view which shows the concept of the multistage sealed foodstuff by Embodiment 1 of this invention. It is a perspective view which shows the concept of the stepped container of FIG. It is a principal part manufacturing process figure which shows notably the principal part of the manufacturing process of the multistage sealed food of FIG. 1, (a) is the lower main sealed food accommodation process which accommodates the main sealed food in a lower stage accommodating part, (b). FIG. 5A shows a lower housing portion sealing step in which the upper housing portion is heat-sealed by a film-like lower lid material so as to be peeled off, and the lower housing portion is sealed, following (a). It is a principal part manufacturing process figure which shows notionally the upper subsealed food accommodation process which accommodates seasoning subsealed food in an upper stage accommodating part following FIG.3 (b). It is a perspective view which shows the concept of the multistage sealed food by Embodiment 2 of this invention. It is a principal part manufacturing process figure which shows the principal part of the manufacturing process of the multistage sealed foodstuff by Embodiment 3 of this invention. It is a figure which shows the concept of the packaging container of the past (patent document 1), (a) is a disassembled perspective view of a packaging container, (b) is a partial end surface longitudinal cross-sectional view which shows the state which accumulated two packaging containers It is. It is a longitudinal cross-sectional view which shows notionally an example of the 2 step | paragraph container of the former (patent document 2).

  Hereinafter, the specific example of the form for implementing the multistage sealed food of this invention is demonstrated with reference to an accompanying drawing.

  As shown in FIGS. 1 and 2, the stepped container 1 according to the present invention is a bottomed container having an open top made of a plastic molded body of a thermoplastic resin sheet, and is formed by bending the top end toward the outside. A flange 14, at least one upper stage accommodating part 12 having an intermediate step part 15 formed by bending an intermediate part of the side wall 12 a inward, and a lower stage having a side wall 11 a and a bottom part 13 connected to the lower part of the intermediate step part 15. The housing portion 11.

  Examples of the thermoplastic resin sheet include polypropylene (PP) such as homopolypropylene, random polypropylene copolymer, block polypropylene copolymer, ethylene vinyl alcohol (EVOH), copolymer resin of ethylene and acrylic acid (EAA), nylon Resins such as (NY) and polyvinylidene chloride (PVDC) can be used.

  Further, as a material for the stepped container 1 and the upper and lower lid materials 2 and 3, particularly when it is necessary to improve the storage stability of the sealed food, an oxygen-impermeable packaging material laminated with aluminum foil or the like or oxygen A hardly permeable barrier packaging is most desirable.

Known barrier materials for oxygen-impermeable or oxygen-impermeable barrier include aluminum foil as a complete barrier, polyethylene terephthalate (PET) and nylon (ON) having very high barrier properties, and angstroms of silica (SiOx). (Ii) Silica vapor-deposited products deposited on the order, alumina vapor-deposited products obtained by depositing alumina oxide (Al ₂ O ₃ ) on PET and ON in angstrom order, and dual vapor deposition that combines the advantages of silica vapor-deposited products and alumina vapor-deposited products Products, aluminum vapor deposition with aluminum vapor deposition on the order, ethylene-vinyl alcohol copolymer film (EVOH) and polyvinyl alcohol film (PVA) with excellent barrier properties under low humidity, barrier nylon (EVOH type / MXD type) Coextruded product, EVOH and MX in the intermediate layer during nylon film formation The film etc. which coextruded D nylon are mentioned.

  In addition, although not shown in figure in the outer surface of the stepped container 1, you may laminate | stack the outer surface resin film which has the peelability in which the pattern for description of various goods, an explanatory character, etc. were printed as needed. The outer resin film includes a thermal adhesive resin layer, an intermediate layer having a release layer, and a sealant layer having easy peel properties, and can be peeled between the intermediate layer and the sealant layer.

  The outer surface resin film includes polypropylene (PP) such as homopolypropylene, random polypropylene copolymer, block polypropylene copolymer, ethylene vinyl alcohol (EVOH), copolymer resin of ethylene and acrylic acid (EAA), nylon (NY) A resin such as polyvinylidene chloride (PVDC) can be used. A film laminated on polypropylene (PP) / ethylene vinyl alcohol (EVOH) / polypropylene (PP) is desirable in view of oxygen barrier properties, water vapor barrier properties, and the like.

  The stepped container 1 can have any cross-sectional shape of a circular shape or a polygonal shape in addition to the illustrated square shape.

  The multi-stage sealed food 10 according to the present invention is accommodated in a stepped container 1 that has been sterilized and washed in advance and a lower-stage accommodating portion 11, and heat-sealed so as to be peelable by a film-like lower-stage lid 3 on the upper surface of the intermediate step portion 15 The main sealed food 50, which is the main food to be sealed, is stored in the upper container 12 on the lower cover 3, and the upper surface of the flange 14 is heat-sealed and peeled off by the film-shaped upper cover 2. And a seasoned sub-sealed food 60 that is a seasoning food of the main sealed food 50.

  The main sealed food 50 and the secondary sealed food 60 are, for example, various tofu and ginger, pungent taste, shavings, soy sauce, soy sauce, curry, kimchi, chocolate combination, chickpea and curry combination, tokoroten and two cups of vinegar, green seaweed, mustard , Black honey, chocolate combination, various yogurt powder, honey, black honey, chocolate combination, various jelly and black honey, chocolate, various rice cakes, matcha tea, cream combination, various rice cakes and various rice cakes, kinako flour, sugar soy sauce, Black honey, chocolate, natto combination, nectar and matcha tea, cream combination, spaghetti and various ingredients combination, various rice and side dishes and other cooked side dishes, seaweed, curry, stew combinations, various noodles and soba noodles and various Any one or a combination of soup, various kinds of seaweed, various kinds of ingredients, etc. are arbitrarily selected.

  The sub-sealed food 60 is classified by being packed directly into a partition material such as a film or a plastic or paper sachet in a state as it is or in a plurality of different types.

  The upper and lower lid members 2 and 3 are bonded to the upper surface of the flange portion 14 and the intermediate step portion 15 using an adhesive or the like, or when both the stepped container 1 and the lid materials 2 and 3 are of the same material. It is heat-sealed (heat sealed), and its adhesive strength is divided into two types of adhesive portions, that is, a weakly adhering portion 21 and 31 portion of the cover materials 2 and 3 and a strong adhesive portion.

  The strong and weak adhesive strength in this case corresponds to the adhesive strength in the case of the easy peel defined in the Ministry of Agriculture and Forestry Notification 1019, and is such that it can be peeled off by hand and opened. For example, the peel strength per 15 mm width is 200 kgf / 15 mm or more as the peel strength of the weakly bonded portions of the knob portions 21 and 31, and the peel strength of the other strongly bonded portions is 400 kgf / 15 mm or more.

  When the stepped container 1 and the upper and lower cover materials 2 and 3 are formed of a transparent or translucent material, the main sealed food 50 and the sub-sealed food 60 accommodated in the stepped container 1 should be visually recognized. There is a merit that can be.

  Then, after the upper lid member 2 and the lower lid member 3 are sequentially peeled off, the stepped container 1 is left as it is without being attached to the main sealed food 50 in the lower stage accommodating portion 11 and the sub-sealed food 60 in the upper stage accommodating portion 12 and transferred to another container. It is possible to eat using

  Therefore, the multi-stage sealed food 10 according to the present invention is provided with the secondary sealed food 60 in the main sealed food 50, particularly in a nursery school, a kindergarten, a school, a hospital, a nursing home, a company or various workplaces, or a general household. It is excellent in improvisation, convenience and hygiene that can be eaten using a stepped container as it is without being transferred to another container.

[Embodiment 1]
As shown in FIG. 1 as an example, the multi-stage sealed food 10 according to the first embodiment of the present invention is molded into a square box shape in which a stepped container 1 has a lower stage accommodating part 11 and an upper stage accommodating part 12. The main sealed food 50 accommodated in the lower container 11 is tofu, and the pungent material 61 and soup 62 such as ginger are packed in paper or plastic sachets as the secondary sealed food 60 accommodated in the upper container 12. It is divided.

  As an example, the size of the stepped container 1 of this embodiment is as follows. The inner surface of the bottom 13 of the lower container 11 is a square bottom surface of 50 mm × 50 mm, the depth is 30 mm, and the inner surface of the intermediate step 15 is a square opening of 52 mm × 52 mm. The inner surface of the intermediate step portion 15 of the housing portion 12 has a square opening of 67 mm × 67 mm, a depth of 15 mm, the inner surface of the flange portion 14 has a square opening of 70 mm × 70 mm, and both the side walls 11a and 12a have inclined (tapered) surfaces that expand upward. Is formed. In this case, the amount of tofu 50 that is the main sealed food housed in the lower container 11 is approximately 70 g per person.

  The method for producing the multi-stage sealed food 10 automatically uses a plastic molding machine provided with a multi-stage (two-stage in this embodiment) square box molding die in advance from a thermoplastic sheet to a stepped container 1. Is plastic molded. This plastic molding can be vacuum or pressure molding.

  First, as shown in FIG. 3 (a), a soymilk 50a having a predetermined concentration, for example, 7% by weight as a raw material for tofu as the main sealed food 50 is placed in the lower container 11 of the stepped container 1 that has been sterilized and washed in advance. It is accommodated with stirring so as to be homogenized with a coagulant such as a fixed amount of bittern (lower stage accommodating part soymilk accommodating step S1).

  In this lower storage portion soymilk storage step S1, various methods for producing tofu such as well-known container tofu and containered silk tofu in which tofu and packed water are stored in a plastic container can be applied. Tofu is a soy milk or soy protein coagulated with a coagulant such as bittern and has a high nutritional value, but it is easy to rot because it is a food rich in water. The expiration date is set to 5 to 10 days from the date of manufacture.

  So far, various ideas have been devised to maintain a long storage period without impairing the flavor and texture of the tofu itself, and many tofus in containers containing tofu and packed water have been proposed. For example, for packed water, the tofu that has been solidified, molded and cut to a predetermined size is cooled to about 60 ° C. and then placed in a container, and sterilized warm water or water is placed in the gap between the container and the tofu. Packing method of tofu to seal the top opening of the tofu with a sealing seal; Packing cotton tofu or silk tofu after pouring sterilized water into the pack after pouring the cotton tofu or silk tofu with ice A method for producing tofu in which the tofu is stored in a container so that it can be stored easily and stored in the container, and pure water is stored in the container to extend the shelf life; water to be stored in the tofu container; A sterilization system that replaces water with ozone water; a filled tofu of the type without packed water in which a soymilk and a coagulant are filled together in a gas barrier container;

Furthermore, in tofu containing a container for storing tofu and packed water, the container is made using an oxygen-impermeable or oxygen-impermeable barrier packaging material having an oxygen transmission rate of 3.0 cc / m ³ · atm · 24 hrs or less. In addition, using deaerated water having dissolved oxygen of 1.5 mg / L or less as pack water, preferably using tofu prepared from soy milk having dissolved oxygen of 1.0 mg / L or less, the oxygen impermeability or oxygen poor permeability The tofu and the pack water are contained in a plastic container made using the above-mentioned barrier packaging material, and the tofu contained in the container is excellent in maintaining the quality in the flavor even if the shelf life exceeds 10 days (Japanese Patent Application Laid-Open No. 2005). -253319) and soy milk containing a coagulant is coagulated and matured, the remaining water is dehydrated to make tofu dough, mixed with edible oil, crushed and mixed, fluidized, filled into a pack, and coagulated and matured again Make Thus, there is also proposed a method for producing packed cotton tofu (Japanese Patent Laid-Open No. 2005-95038) that can easily realize a sufficiently long shelf life since there is no separation step in water.

  Subsequently, as shown in FIG. 3 (b), heat sealing is performed on the upper surface of the intermediate step portion 15 so as to be peeled off by the film-like lower lid member 3 to seal the lower storage portion 11 (lower storage portion sealing step S2).

  In the lower housing portion sealing process, as described above, the lower lid member 3 is divided into two types of adhesive portions, that is, a weakly adhesive portion of the peeling knob 31 portion and another strong adhesive portion.

  The soymilk 50a in the lower housing part 11 is coagulated by leaving it in a sealed state in the lower housing part (lower housing part soymilk coagulating step S3).

  Thereafter, the entire stepped container 1 in a state where the sealed lower stage container soymilk 50a is solidified is sterilized and washed (stepped container whole sterilization / cleaning step S4).

  Next, as shown in FIG. 4, a spicy material 61 and soy sauce or soy sauce 62 such as ginger packed in a plastic or paper sachet that is a seasoning auxiliary sealed food 60 is placed in the upper container portion 12 on the lower lid material 3. Accommodating (upper accommodation part subsealing food accommodation process S5).

  And finally, as shown in FIG. 1, it heat-seals to the upper surface of the flange part 14 so that peeling is possible with the film-form upper cover material 2, and seals the upper stage accommodating part 12 (upper stage accommodating part sealing process S6), and is multistage. The sealed food 10 is completed.

[Embodiment 2]
As shown in FIG. 5, the multi-stage sealed food 10A according to the second embodiment of the present invention is, for example, a spoon as an edible tool 70 such as a spoon, a fork, a toothpick, or a chopstick that has been sterilized and washed in advance in the upper-stage accommodating portion 12. Other configurations are the same as those of the first embodiment except for the difference that is further accommodated. The reference numerals of members other than the spoon 70 which is an edible tool in FIG. 5 are given the same reference numerals as those in FIG.

  Therefore, according to this embodiment, since the edible tool 70 such as a spoon is accommodated in the upper-stage accommodating part 12, various tofus 50 are not transferred to another container or prepared separately. The instantness and convenience that can be eaten using the stepped container 1 and the edible tool 70 are further improved.

[Embodiment 3]
In the multi-stage sealed food 10B according to Embodiment 3 of the present invention, the fermented tofu 50B is accommodated and sealed in the lower-stage accommodating portion 11 as the main sealed food.

  As shown in FIG. 6, the fermented tofu 50B is produced by sterilizing the lower container part soymilk container process S1, the lower container part sealing process S2, the lower container part soymilk coagulation process S3, and the entire stepped container as shown in FIG. -Other manufacturing processes S4a-S4c, and S7 except the washing | cleaning process S4, and the latter half upper stage accommodating part subsealed food accommodating process S5 and the upper stage accommodating part sealing process S6 differ. Hereinafter, manufacturing steps S4a to S4c and S7 different from those of the first embodiment will be described.

  After the entire stepped container sterilization / cleaning step S4, the lower lid material 3 is peeled off (lower lid material peeling step S4a), and fermented foods such as miso, sake lees, and salted salmon are added to the solidified soymilk 50b of the lower container 11. Is added (lower storage portion fermented food addition step S4b).

  Next, heat sealing is performed on the upper surface of the intermediate step portion so as to be peeled off by another lower lid member, and the lower housing portion is sealed again (lower housing portion resealing step S4c).

  Subsequently, through the upper housing portion sub-sealed food housing step S5 and the upper housing portion sealing step S6, the coagulated soy milk in the lower housing portion is fermented and matured to produce fermented tofu 50B (fermented tofu generation step S7).

  By the manufacturing method having such manufacturing steps in sequence, the multi-stage sealed food 10B of this embodiment is finally packed and shipped.

  As described above, because the lower container 11 of the stepped container 1 stores the soy milk 50a that is the raw material of the tofu that is the main sealed food, the fermented tofu 50B can be generated through the series of manufacturing steps S1 to S7. Multi-stage sealing that incorporates the characteristics of fermented foods that improve immunity, dieting, anti-aging properties, preservability, etc. The food 10B can be provided.

  In addition to the fermented tofu 50B described above as a fermented food, it goes without saying that various known fermented foods can be applied to the main sealed food or the secondary sealed food in the multi-stage sealed food of the present invention.

  The manufacturing process of the multi-stage sealed food 10, 10A, 10B of the present invention described above is for manufacturing the stepped container 1 in a state where a suitable sanitary environment such as sterilization / sterilization or contamination prevention is prepared in the manufacturing factory. Including partially (for example, excluding the lower lid material peeling step S4a in Example 3) or all automated line production is possible, thereby making the production more efficient without human intervention as much as possible, and the economics due to the cost reduction associated therewith Moreover, hygiene and the like are further improved.

  The foregoing descriptions of specific embodiments of the present invention have been presented for purposes of illustration. They are not intended to be exhaustive or to limit the invention to the precise form described. It will be apparent to those skilled in the art that many modifications and variations are possible in light of the above description.

  The multi-stage sealed food of the present invention is made of a plastic molded body of a thermoplastic resin sheet, and the stepped container 1 including the upper stage accommodating part 12 and the lower stage accommodating part 11 has an inexpensive and simple structure and can be easily formed into any size and three-dimensional shape. There is a degree of design that can be selectively set, and a different main sealed food 50, seasoned sub-sealed food product 60, and an optional edible tool 70 are selectively stored in the lower storage section 11 and the upper storage section 12, respectively. Since the upper and lower lid materials 2 and 3 are heat-sealed and sealed so as to be peeled off, the lid materials 2 and 3 are sequentially peeled off, and then the main sealed food 50 in the lower container portion 11 is placed on the main sealed food 50. Providing multi-stage sealed foods 10, 10A and 10B which are excellent in instant, convenient and hygienic, which can be eaten using the stepped container 1 without being transferred to another container with the secondary sealed food 60 It is effective in a wide range of industries such as various manufacturing and service industries, various offices and workplaces, nurseries and kindergartens, various schools, hospitals and geriatric facilities, and even general households. It can be suitably applied as a simple food product.

1: Stepped container 2: Upper lid material 3: Lower lid material 10, 10A, 10B: Multi-stage sealed food 11: Lower stage accommodating part 11a, 12a: Side wall 12: Upper stage accommodating part 13: Bottom part 14: Flange part 15: Middle Steps 21, 31: Peeling knob 50: Main sealed food (tofu, etc.)
50a: Soy milk 50b: Coagulated soy milk 50c: Fermented food (miso, sake lees, salted koji, etc.)
60: Subsealed food 61: Spicy material 62: Soy sauce or soy sauce 70: Edible utensils (spoon, fork, toothpick, chopsticks, etc.)

Claims (7)

  From plastic molded body of thermoplastic resin sheetTheTopButOpenAndTopPartOutsideTowardsBendTheFormed flange,as well asInside the side wallDirectionFold intoTheHas an intermediate step formed And provided between the intermediate step portion and the flange portion.An upper housing portion, and a lower housing portion having a side wall and a bottom portion connected to the lower portion of the intermediate step portion.RuPre-sterilized and washedTwo-stage shape Formed inA stepped container;
  Heat sealed so that it can be peeled off by a film-like lower cover on the upper surface of the intermediate step.IsSealedTofuWhen,
  It is housed in the upper housing part on the lower lid material and heat-sealed so that it can be peeled off by the film-like upper lid material on the upper surface of the flange partIsSealedGinger, pungent, shavings, soup, soy sauce, Selected from curry, kimchi, or chocolateSub-sealed food,
  With,
  PreviousAfter the upper lid member and the lower lid member are sequentially peeled off,tofuEat food using the stepped container as it is without adding the secondary sealed food in the upper container to the container.This CanIt is characterized byStep with two-stage shapecontainerInsealingTofu.   The stepped container may be a circular, oval, triangular, quadrangular or polygonal shape of any size.AnywayOr 1The cross-sectional shape according to claim 1,Step with two-stage shapecontainerInsealingTofu. Spoon the upper housing part, a fork, toothpick, or stages any one eating utensil including chopsticks are formed in two stages shape according to claim 1 or 2, characterized in that it is further selectively accommodated sealed tofu with container. A method for producing tofu sealed in a stepped container formed in a two-stage shape,
It consists of a plastic molded body of a thermoplastic resin sheet, with an open upper end, a flange portion formed by bending the upper end portion outward, and an intermediate step portion formed by bending the intermediate portion of the side wall inward. And sterilizing the stepped container comprising: an upper storage portion provided between the intermediate step portion and the flange portion; and a lower step storage portion having a side wall and a bottom connected to the lower portion of the intermediate step portion. a container sterilization step of washing,
And the lower housing portion soymilk accommodation step for accommodating stirring to homogenization with a raw material comprising a soy milk coagulant rot beans in the lower housing portion of the front Kidanzuke container,
A lower-stage housing portion sealing step in which the upper surface of the intermediate stage portion is heat-sealable so as to be peeled off by a film-like lower lid material and the lower-stage housing portion is sealed ;
A lower housing portion soymilk coagulating step for coagulating soymilk in the lower housing portion ;
The entire stepped container sterilizing and washing step for sterilizing and washing the entire stepped container in a state where the soy milk in the sealed lower-stage container is solidified ,
Ginger the upper housing portion of the stepped container, pungent, grinding dust, soup, sauce, curry, kimchi, or houses a secondary sealing food selected from chocolate, peelable the flange upper surface by a film-like upper lid Subsealing food filling stage that heat seals and seals the upper housing part ,
A method for producing tofu sealed in a stepped container formed in a two-stage shape . 5. The stepped container is formed in a two-stage shape according to claim 4 , wherein the stepped container has a cross-sectional shape of any one of a circular shape, an elliptical shape, a triangular shape, a rectangular shape, or a polygonal shape. Of tofu sealed in a stepped container . The stage formed in a two-stage shape according to claim 4 or 5 , wherein any one edible tool including a spoon, a fork, a toothpick, or a chopstick is further selectively accommodated in the upper stage accommodating part. method of manufacturing a sealed tofu with the container. Tofu sealed in the container with the stage, according to any one of claims 4 to 6 manufacturing process including manufacturing the stepped container characterized in that it is partially or totally automated production line sealed tofu manufacturing method of the stepped container formed in two stages shape.

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