JPH0271716A - Container with exothermic function - Google Patents

Abstract

PURPOSE:To prevent the generation of inflammable gas, by providing a means which has a metal exothermic chamber at whose interior a self combustible exothermic agent layer and a desiccating agent layer are isolatingly arranged and whose opening is virtually closed tightly, and also, ignites the exothermic agent. CONSTITUTION:A liquid food and drink container 1 has the shape of a cylindrical can, and its side wall 8 is made up of metal, paper and plastic, and also, metal superior in elongation is used for an upper lid 9 and a bottom lid 7 equipped with an exother mic agent housing portion. An exothermic agent 1 is housed at the interior of the exothermic agent housing portion, and a desiccating agent layer 3 is isolated from the exothermic agent 1 by means of an adiabatic isolation layer 2. Ignition to the exothermic agent 1 can be conducted through a fuse 5 penetrating the adiabatic layer 2, the desiccating agent layer 3, an adiabatic layer 4 and the lid 6 of the adiabatic layer, or is made by setting fire to the fuse 5 by means of a match or a lighter, or can be conducted by using an electric ignition tool. Also, a metal plate or the like is sufficiently used for the lid 6 of the adiabatic layer. As for a desiccating agent, silicagel or the like is used. In the case of the fuse being used as an igniting means, an excellent result is acquired by using the fuse whose fibre is immersed with, for example, a mixture of metal powder and an oxygen supplier.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a safe container with a heating function for heating liquid food, which prevents the generation of flammable gas when a self-combustible exothermic agent generates heat. It is something.

<Prior Art> Containers for heating the contents by incorporating a container containing a heating agent into a part of the container for liquid food and drink have been well known. For example, EPC Patent Publication No. 244837 introduces an example of heating a liquid food or drink by igniting a heating agent whose main components are an oxygen supply agent and metal powder through a fuse that penetrates a heat insulating layer.

Problems to be Solved> However, when a fuse is ignited with a match or lighter to heat liquid food in such a container, flammable gas may be generated in the process of generating heat from the exothermic agent. If there is an ignition source such as the embers of a fuse when the flammable gas is generated, a flame will be generated, causing burns or fire, making it extremely unsafe.

There was a big problem.

Means for Solving the Problems〉 As a result of repeated studies on the above problems, the present inventors have found that
We have now invented a safe container with a heat generating function that does not generate flammable gas.

That is, the present invention has a metal heat generating chamber in which a self-combustible heat generating agent layer and a desiccant are disposed in the inner part separated from the core layer, and a metal heat generating chamber whose opening is substantially sealed; This is a container with a heat generating function, characterized in that it is provided with a means for igniting the agent.

Next, embodiments of the present invention will be described based on the drawings.

FIG. 1 shows a preferred embodiment of the present invention, with FIG. 1 (8) showing a front sectional view and FIG. 1 (B) showing a plan view. The liquid food and drink container is in the form of a cylindrical can, with a side wall 8
is made of metal, paper, or plastic, and the top lid 9 and the bottom lid 7 equipped with the exothermic agent storage section are made of metal with excellent malleability. - For example, aluminum is used for the side wall 8, the top lid 9, and the bottom M7 with the exothermic agent storage part, and the top M9 is of a pull-top type and can be easily opened by hand.

The exothermic agent 1 is stored in the back of the exothermic agent storage section, and the desiccant layer 3
is separated from the exothermic agent 1 by a heat-insulating isolation layer 2.

The exothermic agent 1 is ignited via a fuse 5 that passes through the insulation N2, the desiccant layer 3, the insulation layer 4, and the lid 6 of the insulation layer, or by igniting the fuse 5 with a matchstick or lighter, or by using an electric method. This can be done using a lighter. Further, the cover 6 of the heat insulating layer may be a metal plate or the like.

As the desiccant used in the present invention, silica gel, calcium oxide, calcium chloride, phosphorus pentoxide, etc. are used. Moreover, the desiccant of the present invention can also be used as a mixture with a nonflammable inorganic compound.

As the nonflammable inorganic compound, silica sand, alumina, diatomaceous earth, volcanic ash, glass powder, inorganic foam, etc. are used. Self-combusting exothermic agents do not require oxygen in the air and can cause an exothermic reaction even in a sealed state as long as an ignition device is provided. That is, the self-combusting exothermic agent of the present invention is composed of a mixture of an oxygen supplying agent and a combustible agent, and the oxygen supplying agent includes potassium permanganate, trilead tetroxide, barium peroxide, bromate, and chloric acid. As the salt or combustible agent, metal powders such as iron, silicon iron, aluminum, magnesium, copper, etc. are used. Incidentally, in order to control the combustion reaction of the self-combusting exothermic agent, inorganic inert substances such as alumina, silica sand, diatomaceous earth, etc. can be added as appropriate.

When a fuse is used as a means of igniting the exothermic agent, the fuse is
It is easily ignited with a matchstick or lighter, and good results can be obtained by using fibers impregnated with a mixture of metal powder and an oxygen supply agent. The exothermic agent layer and desiccant layer are separated by a layer of inorganic material such as a metal plate or slate plate. The isolation layer is preferably formed of a heat-insulating layer with excellent heat-insulating properties, such as an inorganic foam. That is, when the exothermic agent and the desiccant come into direct contact, the moisture reacts with the desiccant when the exothermic agent generates heat, producing flammable gas.

The heating element, desiccant layer, heat insulating layer, fuse, etc. configured as described above are housed in a metal container and substantially sealed. That is, in order to prevent water from splashing on it or moisture-laden air from entering, it is sealed with, for example, metal foil or a synthetic resin film, and can be opened during use.

Further, in the present invention, the exothermic agent is desirably stored in the innermost part of the container in order to improve heat transfer to the object to be heated and to block heat to the outside of the container by a heat insulating layer.

Usage and Effects> Even if the exothermic agent generates heat, no flammable gas is generated, so there is no flame generated outside the container, making it safe to handle. Therefore, it can be said that the container is suitable for heating liquid drinks such as alcoholic beverages and coffee soup.

<Example> Hereinafter, the present invention will be explained in detail by way of examples based on the drawings.

Table 1 shows the specifications of the containers and filling materials used.

The evaluation method is to seal a container using the filler listed in Table 1, let it stand for 3 days, then open the container, ignite the fuse 5 with a lighter, and continue to ignite without extinguishing the lighter after ignition. The exothermic agent 1 was reacted with the container fixed at the same position, and whether or not flammable gas was generated was determined based on the presence or absence of flame generation outside the container. The evaluation results are shown in Table 2.

Table 1 Table 2 Note: The denominator in the table is the number of samples, and the numerator is the number of samples where flames were generated.

[Brief explanation of the drawing]

FIG. 1 shows one embodiment of the present invention; FIG. 1(^) is a front sectional view, and FIG. 1(B) is a plan view. In the diagram! is the exothermic agent layer, 2 is the partition M layer, 3 is the desiccant layer, 4 is the insulation layer, 5 is the fuse, 6 is the lid of the insulation layer, 7 is the exothermic agent storage part (li & bottom lid, 8 is the side wall, Reference numeral 9 indicates the upper lid, IO indicates the liquid food and drink, and 11 indicates the pulling tool for opening.Patent applicant: Asahi Kasei Corporation.

Claims (1)

[Claims] (1) It has a metal heat generating chamber in which a self-combustible heat generating agent layer is placed in the inner part of the metal heat generating chamber, and a desiccant layer is arranged in isolation from the layer, and the opening is substantially sealed; A container with a heat generating function, further comprising a means for igniting the heat generating agent.