JP2016216096A - Container for heating - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a container for heating, as a container having high rigidity in an outer case and sufficient heat insulating property, having high workability, and high disposal properties.SOLUTION: An exothermic agent (2) capable of being heated by causing an exothermic reaction, and an object to be heated, cooked or warmed by the exothermic agent are stored in a container for heating (1). The container for heating comprises an outer case (11) having at least a bottom plate provided on a bottom face, and a lateral plate covering a lateral face whole circumference, and an inner container (12) comprising a heat insulation body made by folding one waterproof sheet provided along the inner surface of the bottom plate and lateral plate of the outer case. The outer case is produced by a pulp mold method.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a heating container for heating food such as water, liquor, and retort food using an exothermic agent.

Portable foods prepared for disasters can be eaten anytime, anywhere, even in the absence of electricity or gas, even in the recent Tokai earthquake, Tonankai earthquake, etc. It is important as a way to survive in any environment.
In particular, if there is a disaster in the cold winter season, or if it is a disaster in Takayama, human beings can survive with heated food.
As a mechanism that can easily heat food anywhere, a mixture of powdered calcium oxide, sodium peroxide and aluminum, or exothermic agents such as calcium oxide (quick lime) generates heat when brought into contact with water or an aqueous solution. Can cause a reaction. A heating container for easily heating a liquid such as water or a beverage without using fire, gas, electricity or the like using such a heat generating agent is known.

Usually, the container has a double structure, and a heat generating agent is loaded on the lower side of the inner container, and water or the like is injected between the inner container and the outer container. Then, water or the like permeates into the inner container to start an exothermic reaction, and heating and heating are performed.
Alternatively, a bag containing a heat generating agent or a bag containing an aqueous solution is broken by an impact from the outside, and an exothermic reaction is started by a mechanism in which the aqueous solution and the heat generating agent are mixed.
Each of these heating containers is made of various materials such as plastic and paper, and is bulky. Therefore, there is a troublesome problem of discarding the separation process when it is discarded.

  With respect to such a problem, Patent Document 1 is a heating container that contains a heat generating agent that causes an exothermic reaction with water or an aqueous solution, and an inner container containing an object to be heated that is heated by the heat. A foldable hollow outer box having a bottom and a side wall surrounding its outer edge, and a sheet of waterproof sheet is folded so as to be disposed along the upper surface of the bottom and the inner surface of the side wall of the outer box And a heating container characterized by comprising a waterproof layer portion formed in a container shape.

  However, although this heating container is designed with the outer box in consideration of disposal and heat insulation, it has a heat generation mechanism for adding water, etc., so it is heavy and generates heat, raising the temperature. The strength of the box itself is necessary. However, because the specifications are designed with emphasis on simplicity, there is a problem that the rigidity of the box cannot be increased, it is difficult to hold, and the heat insulation is insufficient.

JP 2014-144415 A

  Accordingly, it is an object of the present invention to obtain a heating container having a high rigidity of the outer box and sufficient heat insulation, high workability, and high discardability.

The heating container of the present invention is a heating container that contains a heat generating agent that can be heated by causing an exothermic reaction, and an object to be heated that is cooked or heated by the heat generating agent.
The heating container has at least an outer box having a bottom plate provided on the bottom surface and a side plate covering the entire side surface,
It is provided along the bottom plate of the outer box and the inner surface of the side plate, and is composed of an inner container made of a heat insulating body obtained by bending a single waterproof sheet,
The outer box is manufactured by a pulp mold method.

Since the heating container of the present invention is made of a heat insulating material obtained by folding a single waterproof sheet as an inner container, it is simple, highly foldable, and easily discarded.
The outer container is manufactured by a pulp mold method. Because it is made of waste paper containing a lot of air inside, it has high heat insulation, high rigidity, and is easy to dispose of.

It is an example of the heating container of this invention, and is a block diagram which shows the usage type of a heating container. It is an expanded view which shows the example of the inner container which consists of a heat insulating body which bent the sheet | seat of the waterproof sheet used for the container for heating of this invention. It is a perspective view of the inner container which consists of a heat insulating body which bent one waterproof sheet used for the container for heating of this invention. It is an example of the container for heating of this invention, and is explanatory drawing which inserts an inner container in an outer box. It is an example of the heating container of this invention, It is the perspective view and sectional drawing which show the condition which accommodates the bottle in the heating container and is heating.

Hereinafter, the example of embodiment of the container for heating of the present invention is described in detail using a figure.
FIG. 1 is an example of a heating container according to the present invention, and is a configuration diagram showing a usage form of a heating container.
The heating container 1 includes an outer box 11 and an inner container 12, and the exothermic agent 2 and the aqueous solution 3 are put into the inner container 12, and the heated container 4 is put therein.

As the exothermic agent 2, for example, a non-woven fabric, Japanese paper or synthetic material into which water can permeate an exothermic main agent in which calcium oxide and aluminum are mixed, and an exothermic auxiliary agent in which carbonates such as sodium carbonate, potassium carbonate and magnesium carbonate are mixed. What is filled in a water-permeable bag such as paper may be used.
When water is poured into such a water-permeable bag containing the exothermic agent 2, the water permeated from the bag exothermic reaction with calcium oxide in the exothermic main agent generates calcium hydroxide.
Furthermore, calcium hydroxide produced in the initial reaction reacts with aluminum using carbonate as a catalyst, and generates heat at a high temperature of 98 ° C. for 20 to 40 minutes while changing to calcium aluminate or sodium tetrahydroxoaluminate. It can be made.
In addition to the exothermic agent in which calcium oxide and aluminum are mixed, an exothermic agent containing only calcium oxide or an exothermic agent not using a carbonate exothermic auxiliary agent may be used.

The outer box 11 is a pulp box manufactured by a pulp molding method. The outer box 11 is provided with a lid 111 and connected by a hinge 112. Moreover, the opening part 113 was provided in the lid | cover 111 so that the spout and cap 41 part of the to-be-heated container 4 could be taken out of the outer box 11. FIG.
Of course, the spout and the cap 41 may be sized to fit in the heating container 1, and the heating container 1 may have a high thermal efficiency without opening the opening 113 in the lid 111.

FIG. 2 is a development view of a single waterproof sheet used for the inner container of the heating container according to the present invention for folding the sheet and assembling the inner container.
Fig. 2-1 is a development view of the type in which the inner wall 121 of the inner container is raised and the remaining waterproof sheet is wound around the outer surface of the inner wall, and it is easy by folding the solid line fold rule and the broken valley fold rule. The inner container can be assembled.
The center of the square waterproof sheet is a square bottom 120, and an inner wall 121 adjacent to the bottom is provided by extending the vertical and horizontal sides.
The inclined mountain crease 123 is provided at 135 degrees with respect to the side from the four corners of the bottom.
On the clockwise side of the inner wall 121, a winding mountain crease 124 is provided in a length slightly wider than the width of the inner wall in parallel and including the left side 1210 of the inner wall up to the inclined mountain crease 123.
On the counterclockwise side of the inner wall 121, a winding valley crease 125 is provided in parallel with the width slightly wider than the width of the inner wall, including the right side 1211 of the inner wall and the length up to the inclined mountain crease 123.
A folded mountain crease 129 is provided at a position separated from the winding fold crease 124 in parallel to the width of the inner wall in the direction of the four corners of the sheet. Also, a folded mountain fold rule 129 is provided.
The inclined mountain fold rule 124 from the intersection of the folded mountain fold rules 129 is changed to a valley fold rule to be an inclined valley fold rule 1240.
In this type in which the inner wall 121 of the inner container is raised and a surplus waterproof sheet is wound around the outer surface of the inner wall, a plurality of winding crease folds 124 and winding crease creases 125 are further provided. It is also possible to use an inner container that is wound heavily.

FIG. 2-2 is a development view of a type in which the inner wall of the inner container is raised, the remaining waterproof sheet is folded in a tulip shape, and covers the outer side surfaces of the left and right inner walls. By folding each, the inner container can be assembled easily.
The center of the square waterproof sheet is a square bottom 120, an inner wall valley crease 1212 is provided at the extension of the vertical and horizontal sides, and an inner wall 121 adjacent to the bottom is provided.
The two inner wall valley fold rules 1212 extending from the four corners of the bottom portion 120 have a right angle, but three mountain fold rules are provided to divide the right angle corner into four equal parts. Of the three, both ends are a triangular mountain fold rule 126 and the center is a central mountain fold rule 127. The central mountain crease 127 is a central valley crease 1270 in place of the central mountain crease 127 on the outer side from the folded mountain crease 128 that connects two points connecting the intersections of the triangular mountain crease 126 with the sheet end. .

  Here, it is preferable that the waterproof sheet is provided with a waterproof layer made of a hydrophobic resin such as polyethylene resin or polypropylene resin on the inner side, and a material such as paper is used on the outer side so as to be easily folded.

FIG. 3 is a perspective view of the inner container of the heating container according to the present invention, which is assembled by folding from a single waterproof sheet.
FIG. 3A is an inner container 12 that is folded and assembled from the developed view of FIG. 2A of the type wound around the outer surface of the inner wall. The inner wall 121 of the inner container is raised vertically with respect to the square bottom portion 120, and the remaining waterproof sheet is used as the entrainment portion 1231, and the entrainment portion 1231 is folded at the inclined mountain crease 123 and folded twice.
At this time, the folded end portion of the winding portion 1231 is folded into the winding portion 1231 folded so as to be folded by the folded mountain fold rule 129.
The entrainment portion 1231 is formed by folding the entrainment portion 1231 in accordance with the corners of the inner wall 121 with the winding mountain fold rule 124 or the winding valley crease rule 125.
The wound portion and the inner wall outer surface may be bonded in a point shape with a hot melt adhesive or the like. Since the double, quadruple, and sixfold folded waterproof sheets are wound around the outer periphery of the inner wall of the inner container 12, a thin air layer is formed in the portion, and the outer wall has a high heat insulating effect.

FIG. 3-2 is an inner container 12 that is assembled by folding from the developed view of FIG. 2-2 in which a tulip-like folded portion is overlapped at the corner of the outer surface of the inner wall to improve heat insulation.
Fold in advance at the folding corner crease 128 at the four corners of the sheet, fold at the central mountain crease 127, fold the inner wall valley crease 1212, and raise the inner wall 121 of the inner container vertically to the bottom 120. Then, the folding part 1271 is folded in half by the central mountain crease 127, and extends from the corner of the vertical line where the inner walls 121 meet to the left and right.
The central folding line 127 of the folding part 1271 is folded so as to match the inner wall valley folding ruled line 1212, folded at the triangular mountain folding ruled line 126, and the folding part 1271 is folded double or triple outside the inner wall 121 to cover it. .
Since the adjacent folding parts 1271 overlap, the inner wall near the upper end of the inner container 12 is folded with a waterproof sheet folded six times on the outer side, and becomes an inner container with high heat insulation.
This shape is easier to insert than the winding type of FIG.
Similarly to the winding type, the inner wall outer surface and the folded portion may be bonded in a point shape with a hot melt adhesive or the like.

FIG. 4 shows a procedure for inserting the folded inner container 12 into the outer box 11.
Simply open the lid 111 of the outer box 1 and insert the inner container 12 straight into the back.

FIG. 5 shows a state where the heated container 4 is put into the heating container 1 and heated.
FIG. 5A is an external perspective view thereof, and FIG. 5-2 is a longitudinal sectional view thereof.
As shown in FIG. 1, the exothermic agent 2 and the aqueous solution 3 are put into the inner container 12 contained in the outer box 11, and the heated container 4 is put therein.
The neck of the heated container 4 and the cap 41 are taken out from the opening 113 provided in the lid 111 of the outer box 11 so that the heated container 4 can be easily taken out, and when the cap 41 is opened, it should not be so hot that it cannot be held. Yes. In some cases, the contents can be eaten or consumed while the heated container 4 is put in the heating container 1.
Of course, when putting the heated container 4 containing the contents to be heated to a higher temperature, the outer box 11 of the type in which the lid 111 does not have the opening 113 is preferable.

The heating of the heating container of the present invention is selected according to the contents of the container to be heated, because the heating temperature and heating time vary depending on the type and amount of the heating agent and the material and amount of the aqueous solution to be combined.
Usually, heating is performed in a few minutes, but in the case of a long heating, the heating temperature can be increased from 85 ° C. to 98 ° C. for about 40 minutes or more.

The outer box 11 used for the heating container 1 of the present invention is manufactured by a pulp mold method. The outer box manufactured by the pulp mold method is manufactured by removing the binder that connects the pulp from the pulp that constitutes the waste paper by dissolving it with water, etc. The
Made of pulp such as waste paper containing a lot of air inside and made of fibers entangled three-dimensionally, it has high heat insulation and high rigidity. Therefore, even if the container to be heated is heated to a high temperature inside or holding the outside, it is difficult to cause burns.
Moreover, since the pulp is entangled three-dimensionally and is three-dimensionally formed, the rigidity is very high and deformation is difficult. In particular, even when the contents are heavy and the outer box has to be gripped strongly, there is an advantage that it can be easily gripped and held because it does not deform.
In addition, since the outer box is made of a material that is self-bonded only by hydrogen bonds, it can be easily regenerated and discarded.
Since the shape can be freely made by a papermaking mold made of a net, it is easy to make it according to the shape of the container to be heated. In addition, when this outer box is used, it is easy to maintain its shape even at high temperatures as well as heat retaining properties, and it is light and has high heat insulation properties, so it can be carried even during heating.
The inner dimension of the outer box is increased by the folding thickness of the inner container 12 with respect to the outer diameter of the container 4 to be heated.
It is preferable not to make the gap between the inner container and the container to be heated too large.

The waterproof sheet used for the inner container 12 of the present invention may be a paper sheet and a polyethylene film bonded together.
At least the water-resistant resin layer such as high-pressure method low-density polyethylene, linear low-density polyethylene, polypropylene, ethylene / vinyl acetate copolymer, ethylene / propylene copolymer, vinylidene chloride is used on the heated container side. The other is preferably made of a waterproof sheet having a heat-resistant layer of at least 100 ° C. or higher, such as paper including synthetic paper or polypropylene. Of course, a single material may be used as long as it has both performances.
Moreover, when the aluminum vapor deposition layer and the aluminum foil are contained, the heat retaining effect is further improved by efficiently reflecting the internal heat.

The heated container used for the heating container of the present invention may be a resin container such as a polyethylene terephthalate stretch blow container, a metal can such as aluminum or tin, or a glass container. However, in the case of a material having low thermal conductivity, a container having a high thermal conductivity, such as a thin film, is preferable.
Further, the heated object to be put in the heated container may not be a liquid such as water, but may be a fluid such as a retort food or a solid food.

The heating container of the present invention is as described above, and an outer container with high heat insulation formed by a pulp mold method, which is easy to make a shape, and an inner container with a waterproof sheet, are used in combination. Therefore, even when heated to a high temperature, the container is highly easy to handle because it is highly heat-insulating and is unlikely to burn, and has a high rigidity even at a high temperature.
Moreover, since the inner container becomes a sheet when discarded, it is not bulky, and the outer box is a pulp mold product that can be easily regenerated, so there is little environmental load, there are few restrictions on the shape, and the shape should be matched to the heated container The merit of the present invention is great.

1 ... Heating container 11 ... Outer box 111 ... Lid 112 ... Hinge 113 ... Opening 12 ... Inner container 120 ... Bottom 121 ... Inner wall 1210 ... Inner wall left side 1211 ... Inner wall left side Side 1212... Inner wall valley crease 123... Inclined mountain fold crease 1231.・ ・ Inclined valley crease 125 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Round valley crease 126 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Triangle mountain crease 127 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Central mountain crease 1270 ・ ・ ・ ・ ・ ・ Center Valley fold ruler 1271 ··· Folding portion 128 ······· Folded mountain fold ruler 129 ········· - heating agent 3 ......... aqueous 4 ......... the heating vessel 41 ........ cap

Claims (3)

In a heating container containing an exothermic agent that can be heated by causing an exothermic reaction, and an object to be cooked or heated by the exothermic agent,
The heating container has at least an outer box having a bottom plate provided on the bottom surface and a side plate covering the entire side surface,
It is provided along the bottom plate of the outer box and the inner surface of the side plate, and is composed of an inner container made of a heat insulating body obtained by bending a single waterproof sheet,
The heating container, wherein the outer box is manufactured by a pulp mold method.   The heating container according to claim 1, wherein the exothermic agent is an exothermic agent that reacts with water or an aqueous solution to cause an exothermic reaction.   The heating container according to claim 1 or 2, wherein the outer box has a lid that can be freely opened and closed.

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