WO2008082283A1

WO2008082283A1 - Pouches of in-site heating means for cooking

Info

Publication number: WO2008082283A1
Application number: PCT/KR2008/000082
Authority: WO
Inventors: Tae Ho Sin
Original assignee: Tae Ho Sin
Priority date: 2007-01-05
Filing date: 2008-01-07
Publication date: 2008-07-10

Abstract

A heating pouch for an instant cooking is disclosed, in which the upper sides and lateral sides of a heating bag and a food bag are thermally bonded with a heating member being provided between the heating bag and the food bag, so that a good portability of the same is obtained. It is possible to easily use the product unless a heating member is contact with a user's body during the use. It is not needed to take out the heating member and the food bag. A sanitary use is obtained while preventing a certain harmfulness which may occur by means of the heating member. The gap between the heating bag and the food bag are thermally seal-bonded based on a thermo-compression bonding method for thereby preventing the amount of discharging heat. The food stored in the food bag can be fast cooked with the above constructions.

Description

POUCHES OF IN-SITE HEATING MEANS FOR COOKING

Technical Field

[1] The present invention relates to a heating pouch for an instant cooking, and in particular to a heating pouch for an instant cooking in which a certain food can be heated in a sanitary method and can be instantly cooked by a user's simple operation by providing a heating bag made of a thermal endurance synthetic resin, a heating member provided in the interior of the heating bag, and a food bag which is inserted into the heating bag with its upper outer surface being thermally bonded to an upper inner surface of the heating bag. Background Art

[2] A conventional heating pouch consists of a heating bag, a heating member provided in the interior of the heating bag, a water packing bag which is provided in the interior of the heating bag and is filled with water, and a food bag which stores a certain food therein.

[3] As an example of the conventional pouches, there is provided a Korean utility model registration number 20-0393367, which discloses a disposable pouch for heating foods. The conventional pouch is made of a thermal endurance synthetic resin, and its lower and both sides are closed, and its upper side is open, and a zipper 11 is provided at an inner side for closing and opening the opening. Part ofthe zipper 11 is cut off. The conventional disposable pouch for heating foods comprises a heating bag 1 having a vapor discharge port 12 formed as the cut part of the zipper 1 is zipped, a heating member 2 which is stored in the inner side of the heating bag 1 and generates heat as it absorbs water, a water packing bag 3 which is stored in the inner side of the heating bag 1 and is filled with water, and a food bag 4 which stores foods therein.

[4] However, the above conventional heating pouch has the following problems.

Namely, in order to cook a certain food, it is disadvantageouslyneeded to take out all the food bag, the heating member and the water packing bag, and then the packing of the heating member is peeled off, and the heating member is inputted into the heating bag, and water of the water packing bag is inputted into the heating bag. The food bag is inserted into the interior of the heating bag, and the food is cooked. The above procedure is so complicated, and many inconveniences occur for cooking a certain food.

[5] In addition, when peeling off the heating member bag, a harmful heating member may contact with a user's body. The user may inhale a certain harmful gas which occurs owing to a chemical reaction between the heating member and water. When a user takes out the food bag cooked in the interior of the heating bag after a certain time is passed, the user may be hurt owing to very hot water. Since piece of the heating member may be attached to an outer surface of the food bag, a sanitary problem may occur. Radiating heat may be a lot lose through a gap between the food bag and the heating bag.

Disclosure of Invention

Technical Problem

[6] Accordingly, it is an object of the present invention to provide a heating pouch for an instant cooking which overcomes the problems encountered in the conventional art.

[7] It is another object of the present invention to provide a heating pouch for an instant cooking in which the upper sides and lateral sides of a heating bag and a food bag are thermally bonded with a heating member being provided between the heating bag and the food bag, so that a good portability of the same is obtained. It is possible to easily use the product unless a heating member is contact with a user's body during the use. It is not needed to take out the heating member and the food bag. A sanitary use is obtained while preventing a certain harmfulness which may occur by means of the heating member. The gap between the heating bag and the food bag are thermally seal- bonded based on a thermo-compression bonding method for thereby preventing the amount of discharging heat. The food stored in the food bag can be fast cooked with the above constructions. Technical Solution

[8] To achieve the above objects, in a heating pouch for an instant cooking which includes a heating bag, a heating unit provided in the interior of the same, and a food bag, there is provided a heating pouch for an instant cooking characterized in that the food bag is inserted into the interior of the heating bag along with a heating unit having a heating member, and a sealed space part is formed between the interiorof the heating bag and an outer surface of the food bag by thermally compressing the upper side of the heating bag.

[9] A through hole is formed in the heating bag in one side of the sealed space part.

[10] The heating unit is formed of a heating member pack surrounded by a wet sheet with a linear bonding portion being formed at its intermediate portion so that it can be divided into two sides and can be folded.

[11] The heating unit is integrally formed of a heating memberpack and a solution pack, and a pack cutting pulling line is provided for enabling the heating member in the heating member pack and the solution of the solution pack to react with each other, and part of the pulling line is exposed to the outside through the though hole formed in the heating bag for easily cutting the pack from the outside. [12] An auxiliary bag is further provided in the interior of the food bag for storing solution which may react with the heating member.

[13] In the construction of the heating unit, there is provided a heating member pack is made by seal-packing the heating member with a non- woven fabric, and a solution pack is made by seal-packing the heating solution with vinyl, and a pack cutting pulling line is fixed at the solution pack, and the heating member pack and the solution pack are stacked and engaged to the upper surface of the lower support member, and the resultant construction are seal-packed with an aluminum packing sheet with part of the pulling line being exposed to the outside.

[14] There is further provided a lower support for supporting the movement of the heating unit and supporting a pouch as it is disposed at an inner side of the heating bag.

[15] A lower support is further provided for thereby forming a certain space at the lower side of the food bag.

[16] A cutting line is formed at an end or a center portion of the close contact portion of the heating bag and the food bag for an easier separation between the heating bag and the food bag.

[17] A pulling line fixed at each one side of the heating member pack and the solution pack is provided with a plurality of cutting portions.

[18] The heating member contained in the heating unit consists of 100 weight per weight of limestone powder, 1-10 weight per weight of magnesium, 1-10 weight per weight of sodium bicarbonate or sodium hydroxide and 1-10 weight per weight of cellulose with respect to the 100 weight per weight of aluminum metallic powder.

[19] The solution in the solution pack further comprises a catalyzer for enhancing a heating reaction, and the catalyzer is one kind or at least two kinds of compounds selected from the group consisting of salt, sodium perchlorate, natrium peroxide, iron chloride or inorganic acid. Brief Description of the Drawings

[20] The present invention will become better understood with reference to the accompanying drawings which are given only by way of illustration and thus are not limitative of the present invention, wherein

[21] Figure 1 is a view illustrating a conventional heating pouch with a heating function;

[22] Figure 2 is a front view illustrating a heating pouch for an instant cooking according to an embodiment of the present invention;

[23] Figure 3 is a cross sectional view of Figure 2;

[24] Figure 4 is a view illustrating a use state according to an embodiment of the present invention; [25] Figure 5 is a front view illustrating a heating pouch for an instant cooking according to another embodiment of the present invention;

[26] Figure 6 is a cross sectional view of Figure 5;

[27] Figure 7 is a perspective view illustrating an example of a heating member according to another embodiment of the present invention;

[28] Figure 8 is a cross sectional view illustrating another example of a heating member according to another embodiment of the present invention;

[29] Figure 9 is a cross sectional view illustrating another example of a heating pouch for an instant cooking according to the present invention;

[30] Figures 10 and 11 are front views illustrating another examples of a thermo- compression unit of a heating pouch according to the present invention; and

[31] Figure 12 is a comparison graph of the heating temperatures of a heating pouch according to the present invention and a conventional open type pouch.

[32]

Mode for the Invention

[33] The present invention will be described in details with reference to the accompanying drawings.

[34] Figure 2 is a front view illustrating a heating pouch for an instant cooking according to an embodiment of the present invention, Figure 3 is a cross sectional view of Figure 2, and Figure 4 is a view illustrating a use state according to an embodiment of the present invention.

[35] As shown therein, the heating pouch 100 for an instant cooking according to the present invention comprises a heating bag 10 made of a thermal endurance synthetic resin, a heating unit 20 which is provided in the interior of the heating bag 10, and afood storing bag 30 which is inserted into the heating bag 10 and has a relatively narrow width and a longer length than the heating bag 10 for storing a food 32.

[36] In a state that the heating unit 20 is inserted in the heating bag 10, when the food bag 30 is inserted, the upper side of the heating bag 10 is laminated and thermally bonded, so a sealed space part 10a is formed between the inner side of the heating bag and the outer surface of the food bag.

[37] More preferably, the heating bag 10 and the food bag 30 are overlapped in a double structure, and the upper sides and lateral sides of the bag may be compressed concurrently, and may be integrally melted and bonded.

[38] A through hole 12 is formed on the surfaces of the heating bag 10 at one side of the sealed space part 10a for discharging vapor generating due to radiating heat when the heating unit 20 is heated. A bonding sheet 12a is formed on the surfaces of the heating bag 10 at the outer side of the through hole 12 for preventing the input of a foreign substance or discharging the same by opening or closing the through hole 12. In addition, an injection auxiliary bag 40 with heating solution is provided in the good bag.

[39] The shape of the heating unit 20 may change depending on the embodiments of the present invention.

[40] In the embodiments of the present invention, water or heating solution is inserted into the heating unit 20 of the sealed space part 10a from the outside. The water or heating solution is injected in a state that one side of the bonding sheet 12a is removed through the through hole 12. Here, the injection auxiliary bag 40 is provided with a sharp entrance. In a state that the through hole 12 is not provided, a containerwith a tip shaped injection end like an injector may be used.

[41] The heating unit 20 is provided in the sealed space part 10a which is formed of an integral double structureby thermally compressing the heating bag 10 and the food bag 30. The entire design, namely, volume of the heating pouch may be reduced depending on the type of the heating member.

[42] As shown in Figure 3, the heating unit 20 according to an embodiment of the present invention may be formed of a heating member pack formed of wet sheets like non- woven fabric,as it can be bolded in both directions by dividing the same into both sides by providing a linear bonding portion 21 at its intermediate portion. Here, when the heating member is installed, it is folded up and down from the lower side of the initial sealed space part 10a by using the bonding portion 21. So, it is possible to minimize the volume of the pouch in its installed state.

[43] The volume of the lower side of the heating pouch may increase depending on the volume of the food stored during the cooking. So, the lower side of the sealed space part 10a becomes longer, and the folded heating member folded in the widened space part is unfolded in a horizontal shape. As shown in Figure 4, it is disposed in a lower inner side of the food bag 10. When the heating member is provided in a folded state, the pouch may be thinner, and the pouch with a less volume in a compact size may be made.

[44] Figure 5 is a front view illustrating a heating pouch for an instant cooking according to another embodiment of the present invention, Figure 6 is a cross sectional view of Figure 5, and Figure 7 is a perspective view illustrating an example of a heating member according to another embodiment of the present invention.

[45] As shown therein, there is provided another example of the heating unit 20. In the heating unit 20, a heating member pack 22 and a solution pack 24 are integral. There is provided a pack cutting pulling line 26 for allowing the heating member and heating solution to reach with each other. Part of the pulling line 26 is exposed to the outside through the through hole 12 formed in the heating bag 10, so that a user cuts the pack from the outside.

[46] The upper inner side 14 of the heating bag 10 and the outer side 34 of both sides of the food bag are thermally bonded and sealed. At this time, a sealed space part 10a is formed between the heating bag and the food bag, and a heating unit 20 is provided in the space.

[47] Here, the heating unit 20 may be fixed at one side of the inner side of the heating bag 10 or may be disposed at its lower side. In another structure, two heating members may be provided at one side or lower side, or one side or opposite side of the heating bag, respectively. In this case, enough heat can be generated with a less amount of heating member and solution for thereby enhancing heat efficiency. It is possible to make the heating member start its reaction as the user pulls the pulling line without adding water or solution.

[48] As shown in Figure 7, as an example of the heating member, the heating member is seal-packed in the non- woven fabric for thereby manufacturing the heating member pack 22, and the solution is seal-packed with a vinyl packing sheet for thereby manufacturing the solution pack 24. The pack cutting pulling line 26 is fixed at the solution pack 24 for substantially cutting the pack. The heating member pack 22 and the solution pack 24 are stacked, and the pulling line 26 is exposed to the outside. At this time, the pulling line 26 is preferably disposed between the stacked portions of the heating member pack and the solution pack.

[49] As another example of the present invention, the heating member pack and the solution pack may be made of a vinyl or aluminum packing sheet. In this case, the pulling line is fixed and extended so that the heating member pack and the solution pack can be concurrently cut by pulling the same.

[50] Here, the pulling line 26 may be made of a certain material when it is not flexible or strong not limiting thereto. In particular, it may be selected from the first class lines among a nylon sewing line, flow steel line and fixing line.

[51] The heating pouch according to the present invention supports the movements of the heating unit 20 and may be further provided with a lower support 16 which is disposed at the lower side of the heating bag 10 and is supported by means of the pouch.

[52] The lower support 16 may be formed of a plate shaped wall body folded as shown in Figure 8 with its upper side being open, and may be provided with a heating member pack 22 in the interior. A water or solution pack 24 is provided at an outer side of the wall body. So, the water solution pack can be cut by pulling the pulling line from the outside of the heating bag 10 with the help of the pulling line connected with the lower support.

[53] As shown in Figure 9, the food bag 30 according to the present invention may further comprise a lower support member 36 by which a certain space is formed at a lower side. In this case, the air of the space formed by means of the lower support member 36 collects the heat generated by means of the heating unit 20 in the space, and the air is heated, so that it is possible to keep the heat for a long time, and the heat efficiency can be significantly enhanced.

[54] The lower support 16 and the lower support member 36 may be made of conventional materials having good heat keeping properties. Preferably, the materials are not easily transformed by means of high temperature heat.

[55] According to the present invention, a plurality of pulling lines may be provided so that a plurality of cutting portions are formed in the solution pack by means of the pulling line 26 fixed at each one surface of the heating member pack 22 and the solution pack 24, whereby a desired chemical reaction can be fast performed as the heating member of the heating member pack 22 and the heating solution of the solution pack 24 are quickly mixed with each other. Here, when the material of the heating member pack is not a non- woven fabric, a plurality of pulling lines may be provided in the heating member pack.

[56] The use of the heating pouch according to the present invention will be described.

[57] When the pulling line 26 exposed to the outside through the through hole 12 formed on one side of the heating bag 10 is slowly pulled, the solution pack 24 of the heating unit 20 is cut by means of the pulling line 26, and the heating solution is inputted into the heating member pack 22 sealed by the non- woven fabric, and it chemically reacts with the heating member of the heating member pack 22 for thereby generating a high temperatureheat, so that the food 32 stored in the food pack 30 is cooled by means of the high temperature heat.

[58] If the food is a liquid state such as curry or gruel, it is not needed to open the food bag 30 and to pour water. However, if the food needs rice and water, the cutting line 31 formed on the upper side of the food bag 30 is cut, and the zipper part 34 formed at a lower side of the cutting line 31 is opened, and water is poured, and the zipper part is zipped, and the pulling line is pulled, and the food is cooked.

[59] Here, there are not any possibilities that that the air of the heating bag is fast expanded and exploded by the means of the heat. Namely, the above problems may be prevented with the help of a substantially durable material and may be prevented as the air is slowly discharged through the through hole 12 with the pulling line also passing through the through hole 12.

[60] In the above embodiments of the present invention, the zipper part 34 formed on the upper side of the food bag 10 may be unzipped during the cooking operation. So, the lower side of the food bag 30 may be upwardly moved by means of the expansion of the sealed space part 10a. [61] As shown in Figures 10 and 11, so as to prevent the above problems, the thermal bonding portion of the upper sides of the heating bag 10 is more widened toward the lower side of thesame, so that the side portions of the food bag 30 is thermally bonded to the inner surface of the heating bag 10 as compared to the earlier embodiments in which only the upper side of the heating bag 10 is thermally compressed.

[62] In another example of the present invention, the heating bag 10 of the lower side portion of the food bag 30 is thermally compressed and integrally bonded. So, even when the sealed space part 10a of the lower side of the food bag 30 is expanded, the lower side of the food bag 30 is not moved upwardly.

[63] The heating member disposed in the heating unit 20 consists of 100 weight% of limestone powder, 1-10 weight% of magnesium, 1-10 weight% of sodium bicarbonate or sodium hydroxide and 1-10 weight% of cellulose with respect to the 100 weight% of aluminum metallic powder so as to most obtain radiating heat based on a chemical reaction.

[64] In addition, the solution provided in the solution pack is preferably water, and catalyzer may be added to the solution for enhancing a heating reaction. Here, one or at least two catalyzers may be selected from the group consisting of salt, sodium perchlorate, natrium peroxide, iron chloride and inorganic acid. Here, the adding amount of the catalyzer with respect to the solution is preferably 1-10 weight% with respect to the 100 weight% of solution.

[65] The embodiments of the present invention will be described in more detail, but the disclosed embodiments are not limited thereto.

[66]

[67] [Embodiments 1 through 6]

[68] 500g of heating member was prepared by mixing 100 weight% of limestone, 1 weight% of magnesium, 3 weight% of sodium bicarbonate, and 1 weight% of cellulose, and as solution, underground water of an average temperature of 12⁰C was prepared. The heating member and solution are mixed in a double structure pouch under an indoor environment of 19⁰C, and the reaction was performed six times under the same conditions. A result of the reaction is shown in Figure 12.

[69]

[70] [Comparison examples 1 through 6]

[71] Acids such as hydrochloric acid, phosphoric acid, over oxygen or something or chloride, phosphoric acid compound or something are added to raw limestone in the conventional method, so that a heating member was prepared and reacted in the conventional open type pouch, and the reaction was performed six times under the same conditions as the embodiments 1 through 6. A result of the reactions is shown in Figure 12. [72] As shown in Figure 12, according to the above comparison examples, it is known that the temperature is sharply increased for the first five minutes until it reaches 6O⁰C proper for cooking foods. Thereafter, it is known that the temperature over 7O⁰C proper for cooking foods is continuously maintained.

[73] The conventional heating member is implemented based on a heating method of a hydration reaction and neutralization reaction in which raw limestone and water are reacted with acids such as hydrochloric acid, phosphoric acid, over oxygen or something added to raw limestone and chloride, phosphoric acid compound or something. Since a calcium element of raw limestone is already coupled to oxygen, there is a certain limit for obtaining a desired heating degree by adding water and acid. As another disadvantage, when slaked lime is obtained througha hydration reaction when the viscosity of raw limestone is 3.3, the viscosity isdecreased at near 2.2, and the volume of residue, which is a creation of reaction, increases, so that a good response is not obtained from customers. The heating is not enough to actually cook foods owing less degree of heat.

[74] The present invention uses an aluminummetallic powder as a major compound as compared to the reaction using an additive by using a conventional raw limestone as a major compound, and limestone and other additives are mixed, and a catalyzer of solution is added, so that an initial increase effect of heating amount is obtained along with a faster reaction, and a temperature can be maintained for a long time after it is increased.

Industrial Applicability

[75] As described above, the heating pouch for an instant cooking of the present invention is made in a double structure having a sealed space part, and the heating bag and the food bag are able to prevent in maximum the leakageof radiating heat of the heat radiating member, and a desired cooking time is reached as soon as possible, and a proper temperature is effectively maintained. The operation is simple, and the portability is easy. The harmfulness occurring by means of the heating member is prevented in maximum, and it is possible to cook the foods stored in the food bag as faster as possible.

[76] As the present invention may be embodied in several forms without departing from the spirit oressential characteristics thereof, it should also be understood that the above-described examples are not limited by any of the details of the foregoingde- scription, unless otherwise specified, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims. [77] [78]

Claims

[1] In a heating pouch for an instant cooking which includes a heating bag, a heating means provided in the interior of the same, and a food bag, a heating pouch for an instant cooking characterized in that the food bag is inserted into the interior of the heating bag along with a heating means having a heating member, and a sealed space part is formed between the interior of the heating bag and an outer surface of the food bag by thermally compressing the upper side of the heating bag.

[2] The pouch of claim 1, wherein a through hole is formed in the heating bag in one side of the sealed space part.

[3] The pouch of claim 2, wherein a bonding sheet is provided on an outer surface of the heating bag having the through hole.

[4] The pouch of claim 1, wherein said heating means is formed of a heating member pack surrounded by a wet sheet with a linear bonding portion being formed at its intermediate portion so that it can be divided into two sides and can be folded.

[5] The pouch of claim 1, wherein said heating means is integrally formed of a heating member pack and a solution pack, and a pack cutting pulling line is provided for enabling the heating member in the heating member pack and the solution of the solution pack to react with each other, and part of the pulling line is exposed to the outside through the though hole formed in the heating bag for easily cutting the pack from the outside.

[6] The pouch of claim 5, wherein in the construction of said heating means, a heating member pack is made by seal-packing the heating member with a non- woven fabric, and a solution pack is made by seal-packing the heating solution with vinyl, and a pack cutting pulling line is fixed at the solution pack, and the heating member pack and the solution pack are stacked and engaged to the upper surface of the lower support member, and the resultant construction are seal- packed with an aluminum packing sheet with part of the pulling line being exposed to the outside.

[7] The pouch of claim 5, wherein said solution in the solution pack further comprises a catalyzer for enhancing a heating reaction, and said catalyzer is one kind or at least two kinds of compounds selected from the group consisting of salt, sodium perchlorate, natrium peroxide, iron chloride or inorganic acid.

[8] The pouch of claim 1, wherein an auxiliary bag is further provided in the interior of the food bag for storing solution which may react with the heating member.

[9] The pouch of claim 1, wherein a lower support is further provided for thereby forming a certain space at the lower side of the food bag. [10] The pouch of claim 1, wherein said heating member contained in the heating means consists of 100 weight% of limestone powder, 1-10 weight% of magnesium, 1-10 weight% of sodium bicarbonate or sodium hydroxide and

1-10 weight% of cellulose with respect to the 100 weight% of aluminum metallic powder. [11] The pouch of claim 1, wherein said thermo-compression portion of the heating bag is extended downwardly more, so that a side portion of the food bag is bonded to an inner surface of the heating bag. [12] The pouch of claim 1, wherein said heating bag of a lower side portion of the food bag is thermally compressed and integrally bonded with each other.