JPH0439849B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is applicable to alcohol, coffee, soup, curry,
The present invention relates to a simple heating container for heating other foods and drinks.

[Prior art] Conventionally, in a simple heating container, a heat generating agent that reacts with water to generate heat and a package of water are placed in advance in the container, and in order to generate heat, a rod-shaped object such as a pin is inserted into the container. There is a type that pierces the water package and ruptures it to drain the water.

In such a simple heating container, a storage chamber for food and drink and a reaction chamber are separately provided in the container, and a package of an exothermic agent and water is placed in the reaction chamber. The arrangement was such that the exothermic agent was placed above and below the water package.

[Problem that the invention seeks to solve]

However, this conventional water package has the disadvantage that water cannot be completely drained.

Furthermore, in the sandwich-like arrangement described above, it is necessary to open holes at the top and bottom of the water package. Therefore, there was a risk that a large amount of water would be discharged at once, and there was a risk that the exothermic agent would react rapidly and generate a large amount of water vapor, which would destroy the container.

In addition, in order to allow water to penetrate into the exothermic agent, it is necessary to perform operations such as shaking the container or turning it upside down for a certain period of time and then turning it back to its original position. However, when the container was shaken, there was a risk of water leaking out of the container. Also, if you turn it upside down, if you leave it in this state for a long time (usually 3
(about 1 minute), the air layer in the storage chamber expanded and exploded due to heating, and there was a risk that the seamed part of the bottom cover of the aluminum container would be destroyed. In any case, it has been difficult to completely react the exothermic agents because it is impossible to distribute water to the upper and lower exothermic agents in an appropriate ratio.

Therefore, an object of the present invention is to cause the exothermic agent and water to react gradually and completely while the simple heating container is left standing.

[Means for solving problems]

In this invention, a package 8 of water or a solution 7 mainly composed of water, a heating element 9, and a heating element 9 are arranged in order from the top in the reaction chamber 4.
and an inner lid 10 are arranged, and the package 8 has heat shrinkability.

[Effect]

In this invention, a package 8 of water or a solution 7 mainly composed of water is placed on top, and a heat generating agent 9 is placed on the bottom.
Therefore, it is only necessary to make one hole in the bottom surface of the package 8, and while the simple heating container is left still,
Water or a water-based solution 7 can be gradually discharged.

Moreover, since the package 8 has heat shrinkability, when the package 8 is torn by the rod-shaped body 13 and a small amount of water or the solution 7 mainly composed of water is discharged, a slight exothermic reaction occurs. This heat causes the package 8 to shrink and a small amount of water to be discharged. In this way, the discharge of water or the solution 7 mainly composed of water and the exothermic reaction proceed gradually. Finally, the water or the solution 7 mainly composed of water can be completely discharged, and the exothermic agent 9 can be completely reacted.

〔Example〕

An embodiment of this invention will be described based on the drawings.

In FIGS. 1 and 2, a cylindrical container 1 is a liquid beverage paper can, and a pot-shaped aluminum partition wall 2 is formed inside the cylindrical container 1, which is divided into a food storage chamber 3 and a reaction chamber 4. ing. At the lower end of the reaction chamber 4,
A bottom cover 5 is provided. Then, the lower end of the cylindrical container 1, the lower end of the partition wall 2, and the outer periphery of the bottom cover 5 are tightly wound together, and the lower end of the storage chamber 3 and the reaction chamber 4 are tightly wound together.
The lower end of the is sealed.

The cylindrical container 1 has an upper end sealed in an openable manner with a pull-top or the like, and a separate lid 6 at the lower end.
It is attached removably.

In the reaction chamber 4, from the top, a package 8 containing water or a solution 7 mainly composed of water, a heat generating agent 9, and an inner lid 10 are placed.
is located.

The package 8 is made of a material that blocks water vapor transmission (for example, a laminate film of vinylidene chloride and polyolefin that has been subjected to biaxial stretching treatment). Therefore, it is possible to block water vapor from permeating into the reaction chamber 4 from the package 8 and prevent deterioration of the highly hygroscopic exothermic agent.

The exothermic agent 9 is a substance that generates heat by reacting with water or a solution 7 mainly composed of water, such as Ozomax (trade name, manufactured by Ozo Kagaku Gijutsu Kenkyusho) or a mixture containing calcium oxide as its main component.

The inner lid 10 is a combination of 112 disc-shaped cutout plates made of corrugated paper or other water-absorbing and heat-insulating materials. One cutout plate 11 is
This cutout plate 112 has a circular notch 12.
The notches 12 are interlocked with each other to form an X-shape in longitudinal section.

A through hole 14 is formed in the center of the bottom cover 5, and an adhesive seal 15 is applied to the through hole 14 from the lower surface so that the rod-shaped body 13 can pass through it.

As shown in FIG. 1, the lid body 6 includes a frame portion 16 made of synthetic resin, a rod-shaped body 13, and a bottom plate 17 made of paper. A groove 18 is formed in the rod-shaped body 13.

Next, a method of using the simple heating container having the above configuration will be explained.

First, the lid 6 is removed from the cylindrical container 1, and the rod-shaped body 13 is separated from the lid 6.

This rod-shaped body 13 is attached to the adhesive seal 1 in the center of the bottom lid 5.
5 and penetrate through the through hole 14 and the inner lid 10 until it reaches the lower surface of the package 8. As a result, the package 8 is torn, and water or a solution 7 containing water as a main component is discharged along the groove 18 of the rod-shaped body 13, permeates into the exothermic agent 9, and a reaction begins. Furthermore, at this time,
Of course, the rod-shaped body 13 may be removed. After that, the simple heating container is left standing to wait for the exothermic reaction to proceed.

Water or a solution 7 containing water as a main component is gradually discharged downward from the opening in the lower surface of the package 8, reacts with the exothermic agent 9, and generates heat. Due to this heat, the heat-shrinkable package 8 contracts and discharges water or a solution 7 mainly composed of water. By repeating this process, the exothermic reaction gradually progresses and continues until the water in the package 8 or the solution 7 mainly composed of water is used up.

Incidentally, in this embodiment, the inner lid 10 is made of corrugated paper or other material having water absorbing properties and heat insulating properties. Therefore, even if water or a solution 7 containing water as a main component passes through the exothermic agent layer without being used for the exothermic reaction for some reason, the inner lid 10 absorbs it and prevents it from leaking to the outside. can. At the same time, the heat insulation properties can block heat transfer to the outside. Also,
When cardboard is used, it is extremely inexpensive.

Further, since the inner lid 10 has a structure in which two cutout plates 11 are combined, the rod-shaped body 13 can be easily inserted through the cutout portion 12. The inner lid 10 has a longitudinal section X
Since it is shaped like a letter, it has an elastic force and pushes the package 8 and exothermic agent 9 upward. Therefore, not only can the package 8 and exothermic agent 9 be stably held, but also the complete discharge of water or the solution 7 mainly composed of water can be promoted. After being discharged, the packaging body 8 becomes lower in volume due to the push-up of the inner lid 10, and the exothermic agent 9 is moved to the upper surface 2 of the partition wall by that amount.
Since it is close to the storage chamber 3, the food and drinks in the storage chamber 3 can be heated not only from the side surface 2b of the partition wall but also from the top surface 2a.

In this way, the water or water-based solution 7 is completely drained and effectively utilized, so that the amount placed in the package 8 may be the minimum amount necessary for the reaction.

Next, the results of a temperature increase experiment using this simple heating container are shown in FIG. The experimental conditions are as follows.

Cylindrical container: Paper can for liquid beverages, Food and drink: 200ml of water Partition: Aluminum Exothermic agent: 65g of Ozomax Water-based solution: 24ml of 5% saline In the experiment, the above structure was used in a simple heating container and packaged. Two types of film were used for body 8: a heat-shrinkable film and a non-heat-shrinkable film.

Experimental Results As is clear from the heating curve in Figure 5, when a heat-shrinkable film is used for the package 8, it is superior to the case where a heat-shrinkable film is not used in terms of both heating rate and maximum temperature. . Furthermore, the rate of temperature increase when a heat-shrinkable film is used is not so great as to generate water vapor.

In the experiments, saline was used as a solution containing water as the main component, in order to obtain a preservative effect and an antifreeze effect by lowering the freezing point. Preservatives and antifreeze other than common salt may also be used. Further, a surfactant may be included so that the solution can be easily discharged.

〔Effect of the invention〕

In this invention, the package 8 of water or a solution 7 mainly composed of water is placed on top, the exothermic agent 9 is placed on the bottom, and a shrinkable package 8 is used, so the simple heating container is left standing. The reaction can be carried out gradually and completely exothermically.

Therefore, it prevents the generation of water vapor due to rapid reactions, leakage of water etc. due to shaking, and damage to containers caused by forgetting to put the container back in its original position after being turned upside down. Foods and drinks can be heated up to this temperature.

[Brief explanation of drawings]

1 to 5 are drawings showing one embodiment of the present invention. Figure 1 is a partially cutaway front view of a simple heating container. FIG. 2 is a partially cutaway front view showing a state in which a rod-shaped body is pierced. FIG. 3 is a perspective view of the lid. FIG. 4 is a perspective view of the rod-shaped body. FIG. 5 is a graph showing the heating curve of food and drink. 1... Cylindrical container, 2... Partition wall, 3... Storage chamber,
4...Reaction chamber, 5...Bottom lid, 7...Water or a solution containing water as a main component, 8...Packaging body, 9...Exothermic agent,
10... Inner lid, 11... Notch plate, 12... Notch, 13... Rod-shaped body, 14... Through hole.

Claims (1)

[Scope of Claims] 1. A cylindrical container 1 whose upper end is sealed so that it can be opened has a food storage chamber 3 and a reaction chamber 4 separated from each other, and a rod-shaped body 13 can pass through the lower end of the reaction chamber 4. In a simple heating container sealed tightly, a package 8 for water or a solution 7 containing water as a main component, a heating element 9, and an inner lid 10 are placed in order from above in the reaction chamber 4, and the package 8
is a simple heating container characterized by having heat shrinkability. 2 The inner lid 10 has a cutout plate 11 having a cutout portion 12
The simple heating container according to claim 1, characterized in that it is a combination of two or more sheets. 3. The simple heating container according to claim 1 or 2, wherein the inner lid 10 is made of corrugated paper or other material having water absorption and heat insulation properties.