JP2015086478A - Papermaking mold for pulp mold, food product storage container and method for producing food product storage container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disposable food product storage container which is low in cost and has strength and molding flexibility, and in which environmental conservation is taken into consideration; to provide a papermaking mold used for producing the container; and to provide a method for producing the same.SOLUTION: A papermaking mold includes: a main body having a prescribed convex shape; a net-like body provided in a covering manner corresponding to the main body; and a plurality of bored holes for dewatering by suction from the outside of the main body toward the inside thereof. When the papermaking mold is immersed in slurry obtained by adding a prescribed amount of vegetable starch to non-woody fibers, and the dewatering by suction is performed, the non-woody fibers are adsorbed along the shape of the net-like body to form an intermediate of a food product storage container by hydrogen bonding. There are also provided the food product storage container produced by using the papermaking mold and a method for producing the same.

Description

  The present invention relates to a papermaking mold for pulp mold used for manufacturing a food storage container having a smooth outer surface, a food storage container manufactured using the papermaking mold, and a method for manufacturing the food storage container. is there.

  In recent years, from the viewpoint of environmental conservation such as forest resource protection and ecosystem protection, it is required to use biomass as a material for disposable products. On the other hand, among the disposable items, depending on the application, there are cases where various restrictions must be followed in the manufacturing process. For example, in the case of disposable food storage containers used for lunch boxes, etc., it is not only hygienic, but also strength, water resistance, oil resistance, heat resistance, as well as reduction in bulk during transportation or disposal, Unless various conditions such as degrees of freedom are cleared, users' demands cannot be met.

  As for such food storage containers, what is currently most commonly distributed is a so-called synthetic resin, but it is difficult to recommend from the viewpoint of environmental conservation. Recently, the production of food storage containers using a pulp mold manufacturing method has attracted attention as a material to replace synthetic resins.

  A pulp mold is a slurry-like pulp fiber that is covered with a net-like body, immersed in a papermaking mold having a predetermined shape provided with a plurality of suction holes, and sucked by vacuuming or the like from the suction holes. It is a molded body obtained by adsorbing pulp fibers to the body, further sucking and dehydrating the pulp fiber, and drying and releasing from the papermaking mold (see, for example, Patent Document 1). According to the pulp mold, a container having a desired shape can be obtained by integral molding without a complicated assembling process, and the pulp fiber is made of non-woody fiber, and if virgin pulp is used, it contributes to the environmental conservation, Since the sanitary aspect can also be cleared, various ideas have been proposed to enhance the completeness of the food container.

  For example, in order to reduce the bulk and weight during transportation and disposal, and the amount of heat generated during incineration, the shape of the product is limited to a specific shape, and a so-called after press process is added to obtain a thin pulp mold product. (For example, refer to Patent Document 2).

  In addition, a method for producing a pulp molded body has been proposed in which a metal plate having a punched hole is attached to a mesh body covered with a papermaking mold (see, for example, Patent Document 3). According to this configuration, it is possible to display fine and clear uneven portions such as characters on the surface of the molded body.

By the way, when dehydration suction is performed by the suction holes provided in the papermaking mold used in the pulp mold, the non-wood fibers in the slurry are adsorbed only in the vicinity of the suction holes, and the shape of the intermediate becomes non-uniform. When entering the drying step in this state, the finally obtained container does not have the desired shape. In addition, when such an intermediate is after-pressed, the surface becomes smooth, but the fiber density becomes non-uniform, resulting in a problem that the strength is not stable. Therefore, the papermaking type net is covered to eliminate the uneven distribution of adsorption. Conventionally, since the net is opposed to the outer surface of the intermediate body, the outer surface of the food container obtained thereby is As a result of transferring the shape of the net-like body, problems such as paper powder falling due to friction during transportation and wiping off due to dirt adherence occurred due to surface irregularities.

In order to solve such a problem, a method has been proposed in which a papermaking mold is formed in a convex shape outwardly, and an inner surface of an intermediate body of a pulp mold is in contact with a surface of a mesh body to manufacture a container (for example, Patent Document 4). reference). According to this manufacturing method, since the outer surface of the intermediate body does not contact the mesh body, a smooth surface is obtained. As a result, the above-described paper dust is hardly generated, and dirt can be easily wiped off.

Japanese Patent Laid-Open No. 9-296397 JP 2006-123982 A JP 2005-133232 A JP 2013-129921 A

  However, in any of the above prior arts, no solution means for ensuring a certain strength as a food container is disclosed. In particular, improvement of the strength of the container is essential when it is formed thin, both entirely and partially. On the other hand, with the diversification of commercially available lunch boxes, it is necessary to increase the degree of freedom of molding. In addition, because it is a disposable food storage container that takes environmental conservation into consideration, it is necessary to reduce the work load at the time of disposal, such as separation from food residue, and to simplify the manufacturing process so that product costs do not increase. There is also.

Accordingly, in view of the above problems, the present invention provides a low-cost strength and flexibility in molding, a disposable food storage container in consideration of environmental protection, a papermaking mold used for manufacturing such a container, and its An object is to provide a manufacturing method.

  In order to achieve the above object, a papermaking mold for pulp mold according to the present invention is a papermaking mold for pulp mold for producing a food container, and corresponds to the main body having a convex predetermined shape and the main body. It has a covered net-like body and a plurality of perforated holes that suck and dewater inward from the outside of the main body, and is immersed in a slurry in which a predetermined amount of vegetable starch is added to non-wood fibers to perform the suction dehydration. Then, the main feature is that the non-wood fibers are adsorbed along the shape of the mesh and the intermediate body of the food container is formed by hydrogen bonding.

  According to this configuration, the strength can be improved by the plant starch while maintaining the smoothness of the outer surface of the intermediate. Furthermore, since it is vegetable starch, it does not harm the food to be stored, and carbon neutral is maintained even by incineration at the time of disposal.

  The plurality of drilling holes may be formed by sparsely drilling intervals, by reducing a part of the diameter or by tilting a predetermined angle with respect to the direction of suction dehydration. You may make it form in one or a combination. By adopting such a configuration, only a part of the intermediate can be formed thin.

  In order to achieve the above object, the food storage container according to the present invention is a food storage container formed by a pulp mold, and is formed by a slurry obtained by adding a predetermined amount of vegetable starch to non-wood fibers. The most important feature is that the mesh of the mesh body laid over the papermaking mold is transferred only to the inner surface and has a smooth outer surface.

  In addition, in order to acquire the intensity | strength as a food storage container, it is preferable that the addition ratio of the vegetable starch with respect to the said slurry is 1%-1.5%.

A synthetic resin film or a biodegradable resin film may be pressure-bonded to the inner surface to which the mesh is transferred. Since the pressure is applied to the uneven surface having a rough surface accuracy compared to the outer surface without using an adhesive, the film can be peeled relatively easily when the film is separated at the time of disposal.

  Furthermore, in order to achieve the above-mentioned object, the manufacturing method according to the present invention includes a plurality of nets that cover a convex-shaped main body and suck and dewater inward from the main body. A step of immersing a papermaking mold provided with perforated holes in a slurry in which a predetermined amount of vegetable starch is added to non-wood fibers; and non-wood fibers that are sucked from the perforated holes and hydrogen-bonded to the reticulate body A step of forming an intermediate by adsorption, a step of taking out the intermediate from a slurry and sucking and dehydrating from the hole, and a step of releasing the intermediate from the papermaking mold and drying. And

  According to this manufacturing method, in the manufacturing method using a pulp mold, a food container can be obtained without going through an after-pressing process.

  According to the present invention, it is possible to obtain a food storage container that is low in cost, has strength, and has a high degree of freedom in molding. At the same time, such food storage containers are designed for environmental protection.

  Specifically, because the outer surface is smooth, even if stacked and transported in a stack, paper slurry can be prevented from falling into the lower container, and a slurry to which vegetable starch is added can be added. Since it can be formed to be partially thin after use, the strength can be reinforced while ensuring the degree of freedom of processing. In addition, since it is possible to form a thin-walled portion, it is possible to reduce the weight during transportation, which contributes to reduction in transportation cost and environmental conservation. Furthermore, with respect to food residues (adhesion of foodstuffs) inside the container, which becomes a problem during recycling and recovery, the film with the foodstuff attached and the container body can be separated by coating the film inside the container. At this time, since the inner surface coated with the film has irregularities formed by the transfer of the net-like body, it becomes easy to peel off and can promote the separation. In addition, by covering the inner surface of the container with a film, the food residue can be easily discarded without spilling around. The coating of the film can improve oil resistance, water resistance, prevention of adhesion of food materials, and the strength of the entire container. In particular, the plant starch improves the strength, but the strength can be increased by applying a film, while the film is peeled, and after peeling the film, for example, it is thin so that the rising portion of the container can be easily cut off. By forming the portion, it is possible to reduce the bulk at the time of disposal and contribute to the reduction of the disposal cost.

  In other words, the present invention has the effect of solving the consumer's willingness to purchase, hygiene problems and the like while maintaining the effects of environmental conservation and simplicity of the manufacturing process.

FIG. 1 is a side sectional view showing a state in which a papermaking mold according to the present invention is immersed in a slurry. FIG. 2 is a side sectional view showing a state after the papermaking mold according to the present invention is immersed in a slurry and sucked through a drilled hole. FIG. 3 is a partially enlarged side sectional view showing a sparsely formed hole of the papermaking mold according to the present invention. FIG. 4 is a partially enlarged side sectional view showing that the diameter of the punching hole of the papermaking mold according to the present invention is smaller than that of the other drilling holes. FIG. 5 is a partially enlarged side sectional view showing a drilling hole drilled at a predetermined angle with respect to the direction of suction dehydration from the punching hole of the papermaking mold according to the present invention. FIG. 6 is a diagram showing a flow of a method for manufacturing a food container according to the present invention.

  Referring to FIG. 1, reference numeral 1 denotes a papermaking mold for a pulp mold according to the present invention. The material of the papermaking mold 1 is not particularly limited, but an aluminum alloy or the like is preferable in terms of cost and workability. In the present embodiment, the papermaking mold 1 integrally forms a lid and a container body, and includes a lid mold portion 1a and a container body mold portion 1b corresponding to the lid portion of the container. However, the papermaking mold 1 is suitable for food storage such as lunch boxes, such as a container body mold part and a lid part separated, a container with a bowl shape, a rectangular shape with multiple partitions in the food storage part, etc. However, the present invention is not limited to this form.

  The container body mold portion 1b is formed in a convex shape having a hollow space inside, and is integrated with the lid mold portion 1a, and as shown in FIG. 2, the intermediate body 3 of the food container on the molding surface 1c of the outer surface. Is formed. The papermaking mold 1 is provided with a plurality of perforations 11 penetrating in the thickness direction over the entire lid mold part 1a and container body mold part 1b. In FIG. 1, the drilling interval, the diameter size, and the drilling angle of the drilling holes 11 are the same, but can be changed according to the specifications of the container to be generated, as will be described later.

  As shown in FIG. 2, the hole 11 is formed by immersing the molding surface 1 c, which is the outer surface of the papermaking mold 1, in the slurry S made of non-wood fibers as a raw material of the food storage container to be generated. It is used to suck and dehydrate non-wood fibers in the direction A from the suction region V in the space inside the papermaking mold 1 surrounded by the back surface 1d. The suction is performed by a suction pump such as a vacuum pump (not shown). Further, the water sucked by the dehydration may be discharged from the dehydration port D installed in the upper part of the storage tank T.

  By the way, when the slurry S is directly sucked from the hole 11, the suction force is unbalanced between the place where the hole 11 is present and the place where the hole 11 is not present, and therefore, non-wood fibers are unevenly distributed in the vicinity of the hole 11. A container having a desired shape corresponding to 1 cannot be obtained. Accordingly, as shown in FIG. 2, when the mesh body 2 having a shape corresponding to the molding surface 1 c is opposed to the molding surface 1 c of the papermaking mold 1 and sucked from the perforation hole 11, the above-described mesh network 1 is formed. Non-wood fibers are adsorbed on the body 2. By interposing the mesh body 2 between the perforation hole 11 and the non-wood fiber, the non-wood fiber is adsorbed substantially uniformly along the shape of the mesh body 2, and a container having a desired shape can be obtained. In addition, although the raw material of the mesh body 2 and the covering method are not specifically limited, For example, in the case of a wire mesh, it may be fixed by spot welding.

  The non-wood fiber that is the raw material of the slurry S is not limited as long as it is suitable for food storage such as lunch boxes, for example, water resistance, oil resistance, and heat resistance. Specifically, sugarcane pomace (bagasse) And bamboo are useful. In particular, bamboo fiber has abundant resources, has a short growth period, and is limited in its use as a raw material and is not effectively used. Furthermore, since high strength, excellent antibacterial effect, deodorant effect, and antioxidant action are known, it is suitable as a raw material for disposable food storage containers in combination with the availability. Bamboo belongs to the family Gramineae, and there are interpretations of both woody and herbaceous as botany, but in this specification, bamboo is defined as being classified as non-wood fiber.

The non-wood fiber is preferably virgin pulp for food hygiene. Pulp mold made from non-wood fibers is excellent in water resistance, oil resistance, and heat resistance, and contributes to environmental conservation as a biomass container. In addition, strength can be ensured by hydrogen bonding mainly composed of cellulose. . However, since a container such as a disposable lunch box is generally transported in a considerable volume, there is a strict demand for weight reduction from the viewpoint of cost and environmental conservation, and the thickness must be reduced. Therefore, when only non-wood fibers are used as raw materials, there is a limit to thinning in terms of strength. In the present invention, in order to solve this strength problem, a predetermined amount of vegetable starch is added to the slurry S.

Plant starch is a water-soluble polymer compound that enhances the strength of the container while achieving environmental protection, which is one of the problems of the present invention. It is not particularly limited as long as it is a vegetable starch having such characteristics, and examples thereof include rice starch, wheat starch, corn starch, potato starch, tapioca starch, sweet potato starch, red bean starch, mung bean starch, scrap starch, and potato starch. It is done. In particular, tapioca starch is preferable in view of availability, harmlessness to foods, and enhancing properties. Tapioca starch has a very high amylone pectin content of around 80%, excellent flexibility, high transparency of the paste, and high viscosity.

As for the addition ratio of the vegetable starch from which the said effect is acquired with respect to the slurry S, 1 to 1.5% is preferable. In addition, by adding vegetable starch, it becomes possible to implement | achieve weight reduction of 5 to 10% with the container which has the intensity | strength comparable as the container which does not add.

  As described above, the papermaking mold 1 has a convex shape, and the intermediate body 3 formed as a food storage container has the shape of the mesh body 2 transferred to the inner surface of the container, that is, the food storage section. Therefore, the outer surface of the container is not affected by the shape of the mesh 2 and a smooth surface can be obtained as compared with the inner surface. When the papermaking mold is a concave shape and the front and back sides of the container to be generated are reversed, the shape of the net is transferred to the outer surface of the container. When this is stacked and transported, friction is generated by vibration during transport, and paper dust falls inside the stacked lower container. If the food is stored without sufficiently removing it, paper dust adheres to the food, which is unfavorable as a result of sanitizing consumers as well as consumers. In addition, since the outer surface has irregularities, it becomes difficult to wipe off when liquid dirt adheres, and problems such as hygiene and reduction of consumers' purchasing will occur as paper dust drops. Therefore, in the present invention, the shape of the papermaking mold 1 is a convex shape, and the transfer of the shape of the mesh body 2 does not reach the outer surface of the intermediate body 3.

In addition, in this configuration, the inner surface will be uneven, but since liquid food stains and the like are on the food storage side, they are not visible when the food is stored, and in the first place Because it is a surface to store the product, even if there is a stain, there will be no distraction to purchase. Furthermore, as will be described later, if water repellent treatment is performed by pressure bonding of a film to the inner surface or application of a resin agent, the problem of stains such as stains can be cleared.

  3 to 4 show variations regarding the drilling interval, the diameter dimension, and the drilling angle of the drilling holes 11. FIG. 3 shows the holes 11 that are the same but have different intervals (pitch). That is, the interval between the pitch 12a of the adjacent drill holes 11a and the pitch 12b of the adjacent 11b is different. Therefore, even if suction is performed from the suction region V to each of the perforation holes 11a and 11b with a uniform suction force, if the perforation interval is sparse like the pitch 12b, the slurry S near the perforation holes 11b The suction force is reduced, and the thickness of the intermediate body 3 is thinner than the vicinity of the drilling hole 11a.

  FIG. 4 shows the holes 11 having different diameters. That is, although the pitch 12a is constant, the drill holes 11c are smaller in diameter than the drill holes 11a. Therefore, even if suction is performed from the suction region V to each of the perforation holes 11a and 11c with a uniform suction force, as in the perforation hole 11c, when the diameter is relatively small and the path is narrow, The suction force with respect to the slurry S in the vicinity of the hole 11c is reduced, and the thickness of the intermediate body 3 is thinner than that in the vicinity of the hole 11a.

  FIG. 5 shows a different drilling angle of the drilling hole 11. That is, in the hole 11a, since the axial direction and the suction direction A1 coincide with each other, there is no difference between the suction force in the suction region V and the suction force on the slurry S side. As for the suction force on the slurry S side, the inner wall surface of the drilling hole 11d obstructs a part of the suction force due to the inclined drilling angle, and the suction force is attenuated in the suction direction A2 on the slurry S side. Therefore, even if suction is performed with a uniform suction force in the suction region V, the suction force is reduced in the vicinity of the drilling hole 11d on the side where the intermediate body 3 is formed compared to the drilling hole 11a. The thickness becomes thinner. Here, the drilling angle is not only when the entire drilling hole 11d is inclined at a single angle as shown in FIG. 5, but also when it is bent at a different angle in the longitudinal direction of the drilling hole 11d, that is, The case of tilting at a plurality of angles is also included. In this case, since the amount of inhibition of the suction force is further increased, a thinner portion can be formed.

  In the description of FIGS. 3 to 5 described above, the embodiment in which any one element of the drilling interval, the diameter dimension, and the drilling angle is applied to the drilling hole 11 is described. A combined configuration may also be used. What is necessary is just to change suitably the numerical value of a drilling space | interval, a diameter size, a drilling angle, and also the combination of each element according to desired wall thickness.

  As described above, by changing the wall thickness, for example, as described with reference to FIGS. 1 and 2, in the container in which the lid portion and the main body portion are integrally formed, the joint portion between the two is hinged and the lid is formed. In order to enable the opening and closing of the part, it is necessary to slightly reduce the thickness of the hinge part. In addition, about the problem of the intensity | strength by using the said junction part as a hinge part, since vegetable starch (especially tapioca starch) is added to the slurry S in this invention, folding strength can be strengthened. .

  Further, the main body portion of the food storage container has a side wall raised due to the property of storage, which is bulky at the time of disposal, which causes problems of disposal cost and disposal processing. Therefore, it is necessary to devise a device that facilitates crushing of the container. For example, adding a new processing step for crushing such as providing a perforation affects the product cost and is preferable from the viewpoint of disposable use. Absent. Therefore, for example, a structure that can be easily crushed can be obtained by slightly reducing the thickness of the boundary portion between the bottom surface and the side wall surface of the container body.

  As described above, by providing variations in the hole 11, the thickness can be reduced without adding a processing step and without requiring a complicated operation such as partially changing the strength of the suction force. Can be changed.

  As described above in the present embodiment, the container produced using the papermaking mold 1 has the shape of the reticulate body 2 transferred to the inner surface of the container, and therefore has irregularities and rough surface accuracy compared to the outer surface. Concealing these irregularities to improve cosmetics, reduce food residues (especially the adhesion of starchy foods such as rice), and even add color, etc. In order to stimulate motivation, a film may be coated or a resin agent may be applied (not shown). From the viewpoint of environmental conservation, the film may be coated by pressure bonding such as thermocompression bonding without using an organic synthetic adhesive or the like. The resin agent to be applied is also preferably biodegradable. Since the film adheres to the uneven surface and is easy to peel off, it is easy to separate, so synthetic resin films such as polyethylene (PE), polyethylene terephthalate (PET), or polypropylene (PP) thermoplastics A film may be used, but a biodegradable resin film is more preferable. Moreover, by crimping the film, the strength of the container itself is increased in a state where food is stored, and after peeling, it becomes easy to crush using the thinned portion as a fulcrum.

  In addition, as above-mentioned as an effect of film | membrane coating | cover, improvement of water resistance and oil resistance other than foodstuff adhesion prevention and the intensity | strength reinforcement of the whole container are mentioned. Such an improvement in water resistance and oil resistance can be obtained not only by coating the film but also by impregnation, coating, spraying, etc. of a predetermined agent.

  FIG. 6 is a diagram showing a flow of a method for manufacturing a food container according to the present invention. In addition, the symbols in the flowcharts are the same as those in FIGS. First, a slurry S composed of non-wood fibers such as bagasse to which vegetable starch such as tapioca starch is added is generated (S1), and the convex papermaking mold 1 is immersed in the generated slurry S (S2). Suction is performed by evacuation or the like by a vacuum pump from the perforated hole 11 of the immersed papermaking mold 1 (S3), and the non-wood fibers in the slurry S are adsorbed to the mesh body 2 to generate an intermediate 3 (S4). The papermaking mold 1 on which the intermediate 3 is adsorbed is taken out of the slurry S (S5), and further sucked from the drilled holes 11 to be dehydrated (S6). The intermediate 3 is released from the papermaking mold 1 (actually, the mesh 2) (S7), and the released intermediate 3 is dried (S8). In the present embodiment, the release step of S7 and the drying step of S8 are separate steps in time series, but both steps may be performed simultaneously. After completion of the drying process, the surplus portion formed at the time of papermaking is shaped by cutting or the like (S9), and a food container is generated (S10). In addition, as needed, you may crimp | bond a film | membrane on the inner surface of the produced | generated food storage container, or may apply | coat a resin agent (not shown).

  Conventionally, in order to reinforce the strength, there is a method in which a pressure compression step (after press) is added after the drying step (S8). According to the present invention, the addition of the vegetable starch, and a film selectively. By applying this coating, the strength can be reinforced without adding a strength enhancement step by after-pressing. Further, when reinforced by an after press, a problem of bulk at the time of disposal arises in a trade-off manner, but the food storage container according to the present invention can be configured to be crushed at the time of disposal, so that strength reinforcement and disposal It is possible to satisfy both the demands of time load reduction.

DESCRIPTION OF SYMBOLS 1 Papermaking type | mold 1a Lid type | mold part 1b Container body type | mold part 1c Molding surface 1d Back surface 2 Net-like body 3 Intermediate body 11 Drilling hole D Dehydration port S Slurry T Reservoir layer V Suction area

Claims (10)

A papermaking mold for pulp mold for producing food storage containers,
A main body having a predetermined convex shape, a net body corresponding to the main body, and a plurality of perforations for sucking and dehydrating from the outside of the main body in an inward direction; When immersed in a slurry to which vegetable starch has been added and subjected to the suction dehydration, non-wood fibers are adsorbed along the shape of the mesh body, and the intermediate body of the food container is formed by hydrogen bonding. Paper mold for pal mold.   2. The pulp according to claim 1, wherein the intervals between the plurality of drill holes are relatively sparsely provided at portions facing a portion where a part of the intermediate body is thinly formed. Molding mold for molds.   The plurality of drill holes are characterized in that a diameter dimension of a portion facing a portion where a part of the intermediate body is formed thin is relatively smaller than a diameter dimension of other drill holes. The papermaking mold for pulp molds according to claim 1 or 2.   2. The plurality of perforated holes, wherein a portion facing a portion where a part of the intermediate body is formed thin is inclined at a predetermined angle with respect to the suction and dewatering direction. Item 4. A papermaking mold for pulp molds according to any one of Items 3 to 3. A food storage container formed by a pulp mold,
It is formed of a slurry in which a predetermined amount of vegetable starch is added to non-wood fibers, and the mesh of the mesh body covered with the papermaking mold according to claim 1 is transferred only to the inner surface and has a smooth outer surface. A food storage container.   The food container according to claim 5, wherein the main component of the slurry is bamboo fiber.   The food container according to claim 6, wherein an addition ratio of the vegetable starch to the slurry is 1% to 1.5%.   The food container according to any one of claims 5 to 7, wherein a synthetic resin film or a biodegradable resin film is pressure-bonded to the inner surface.   The wall thickness is partially formed to be thin using the papermaking mold according to any one of claims 2 to 4, wherein any one of claims 5 to 8 is provided. A food container according to item 1. A manufacturing method for manufacturing a food container with a pulp mold,
Corresponding to the main body having a predetermined shape of the convex shape, a papermaking mold provided with a plurality of perforated holes for suction dewatering from the outside to the inside from the outside of the main body has a predetermined amount of vegetable property on the non-wood fiber A step of immersing in a slurry to which starch has been added; a step of forming an intermediate by adsorbing non-wood fibers hydrogen-bonded to the network by suction from the perforated holes; and taking out the intermediate from the slurry. A production method for producing a food container, comprising: a step of dehydrating by suction from the perforated hole; and a step of releasing the intermediate from the papermaking mold and drying.

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