JPS6045172A - Package with heating tool - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a package with a heating colophon, and more particularly to a package equipped with a means for easily heating contents such as retort food that require heating during use.

A method of using the heat of reaction between quicklime (calcium oxide) and water to heat retort foods such as curry and stew in a place without open flames is described in Japanese Patent Publication No. 50, No. 28506, for example.
No., Jitko No. 52-28711, Jitko No. 56-3206
It is stated in No. 7 etc.

However, according to the inventor's study, the packages or containers described in these publications all rely on the outside of the package or container for the water necessary for the reaction, and moreover, even if the amount exceeds the appropriate amount, At least enough temperature for a short time (60-95
Since it is not possible to uniformly heat the water (°C), it has the disadvantage that it cannot be used effectively unless the user adds water by precisely measuring the amount of water.

To explain in more detail, when the amount of water is insufficient, a local reaction occurs rapidly and the temperature exceeds 100° C., and unreacted portions remain in other parts, so that the temperature does not reach a uniform temperature throughout. Moreover, if the amount of water is excessive, the generated heat 1 will be used to heat the excess water, and sufficient purification will not be achieved in a short period of time.

Therefore, the present invention provides quicklime and slaked lime, which is a reaction product, without adhering to the outer surface of the bag containing the contents even when the contents are taken out, making it sanitary and requiring special attention to the user or consumer. To provide a package with a heating device that can be heated simply and efficiently without requiring any requirements.

That is, the present invention provides contents that require heating during use;
A package consisting of quicklime and water divided into small bags so that these three do not come into contact with each other, characterized in that 1 to 5 moles of water are divided per mole of quicklime. It is a package.

The present invention will be described below with reference to the drawings. Drawings (showing an embodiment of the present invention; FIG. 1 is a cross-sectional view of a package).

In FIG. 1, (1) shows a packaging bag which is the exterior of the packaging body. This packaging bag (1) is heat-sealed with two water-impermeable plastic films (2) sandwiched between its ends. This plastic film (2)
The film is made of, for example, a polyethylene or polypropylene film, and must not undergo changes such as melting due to the generated heat.

Of the three compartments divided by these two plastic films (2), the central compartment stores small bags (41) containing contents (4) such as curry and stew, and water (5). . The sachet (41) containing the contents may be a normal retort food package, such as curry, stew, red rice, etc., packaged aseptically in a laminated material containing aluminum foil or a laminated material of gas barrier plastic film. good.

The material of the water-containing pouch (51) may be a water-impermeable plastic film, for example, a polyolefin film such as polyethylene or polypropylene. Even if this pouch (51) were to break during transportation or storage,
The flowing water does not come into contact with the quicklime, so it does not generate heat.

Further, of the three chambers divided by two plastic films (2), the chambers on both sides house small bags (31) containing quicklime (3). This pouch (31) must be made of a water permeable material, for example non-woven fabric or the like can be used. In addition, as quicklime (3), powdered or granular quicklime is preferable.

The total amount of quicklime (3) contained in the two small bags (31) and the amount of water (5) contained in the small bag (51) are determined by a ratio of 1 to 5 moles of water to 1 mole of quicklime. However, as described below, a ratio of 2 to 3 moles is most preferable.

When using the package of the present invention, first open one end of the heat-sealed part and take out the pouch (51) of water (5).
This water is poured into the two chambers on either side containing the sachets (31) of quicklime (3). The water (5) passes through the water-permeable material of the pouch (31) and reacts with the quicklime (3), producing slaked lime while generating heat. The heat generated can heat the entire contents through the packaging material of the sachet (31) and the plastic film (2) by means of water and steam. Further, the appropriate ratio of quicklime to water for heating at the required temperature and time is as shown in the Examples described below. The amount of quicklime and water relative to the contents varies depending on the quantity and quality of the contents, but for commercially available retort sterilized curry, it is sufficient to have quicklime with a weight of 45 (J), compared to the weight of the contents of 1100 (). Yes, for example 170 (80 for I's curry)
(Quicklime I is required.

In addition, Fig. 2 shows that by dividing the water into two small bags, it is possible to add the appropriate amount of water to each chamber on both sides, and a heat-sealed part is placed in the center of the quicklime small bag. By providing this, the quicklime is prevented from being unevenly distributed,
This enables more uniform heating, and the rest is the same as that in FIG. 1.

The package of the present invention has the above-mentioned structure, and since the required amount of water is packaged, heating can be easily and reliably performed at the required temperature and time. Since slaked lime does not stain, it is both hygienic and looks good.

The present invention will be explained below with reference to Examples.

Example A commercially available retort curry (180 (1
) to create a package as shown in Figure 2. At this time, the quicklime (3) was granular quicklime 100 (
1, and non-woven fabric was used as the material for the quicklime pouch.

Also, water (5) is 32 (32) for quicklime (3), respectively.
1 (1 equivalent), 64o (2 equivalents), 96 (1 (3 equivalents)
, 128CI (4 equivalents), 160o (5 equivalents ff1)
, 186 (I+ (6 equivalents)).

The exterior material of the package (1) was a laminate 14131 of polyester/aluminum foil/nylon/polypropylene, and polypropylene was used as the inner surface.

Open a part of this package and pour half of it into 7 cups of water.
In addition to the side chamber, the unsealed part was folded and left to stand, and the maximum temperature of the retort curry and the time it took to reach that temperature after adding water were measured.

The results are as follows.

Water 1 equivalent Maximum humidity 79°C Time 1/I Water 2 equivalent Maximum temperature 79°C Time 10 minutes Water 3 equivalent Maximum temperature 85°C Time 12 minutes Water 4 equivalent Maximum Temperature 70℃ Time 14 minutes 5 equivalents of water Maximum temperature 67℃ Time 13 minutes 6 parts water Maximum temperature 66℃ Time 17 minutes As you can see, 1 to 5 moles (equivalent ) when water is added, the heating temperature is high and the time to reach this temperature is short. Among them, the best condition is when the amount of water is 2 to 3 stones. It is assumed that this is because it is used not only for the exothermic reaction with quicklime, but also for transmitting heat to the contents.

[Brief explanation of the drawing]

The drawings show an embodiment of the invention, and FIGS. 1 and 2 are cross-sectional views of the package. (1) Packaging body (2) Plastic film (3) Quicklime (3-) Quicklime sachet <4
)...Contents (41)...Package with contents (5)・
...Water (51) ...Water pouch patent applicant

Claims (3)

[Claims] (1) A package consisting of contents that require heating during use, quicklime, and water, divided into small bags to prevent these three from coming into contact with each other, and containing 1 to 5 mol of quicklime per 1 mol of quicklime. A package with a heating device characterized by containing water in divided packages. (2) The interior of the bag is divided into royal chambers using two water-impermeable films, with the central chamber containing the contents and the water bag, and the chambers on both sides containing the quicklime bag. A package according to claim (1), characterized in that it is formed by sealing a bag. (3) The package according to claim 1 or 2, wherein the quicklime pouch is made of a water-permeable sheet.