KR20140060150A

KR20140060150A - Reusable instant cool pack

Info

Publication number: KR20140060150A
Application number: KR1020120126904A
Authority: KR
Inventors: 양현정
Original assignee: (주)금양
Priority date: 2012-11-09
Filing date: 2012-11-09
Publication date: 2014-05-19

Abstract

Disclosed is a cool pack that can be reused as a cool pack or a hot pack by being cooled and heated after being used as a cool pack once by means of heat absorption. The disclosed reusable cool pack of the present invention comprises: an exterior pack; a first reactant and a third reactant that are accommodated in the exterior pack; an interior pack that is accommodated with the first reactant and third reactant in the exterior pack; and a liquid second reactant that is accommodated in the interior pack. The first reactant performs heat absorption when dissolved in the second reactant, and the third reactant absorbs the second reactant so that the inside of the exterior pack is changed to and maintained in a gel state. The exterior pack is made of any one selected from PVC, PE nylon, PU, and EVA, and the interior pack is made of a soft, thin film in order to be easily popped by means of an external force. Moreover, the first reactant is any one selected from urea, ammonium nitrate, ammonium chloride, barium hydroxide, ammonium thiocyanate, and ammonium bromide. The second reactant can be made of water, and the third reactant can be made of cross-linked poly acrylate salt. In addition, the present invention can further comprise a fourth reactant that is accommodated with the first reactant and third reactant in the exterior pack so as to prevent the gel material inside the exterior pack from being frozen when the pack is cooled in order to be reused as a cool pack.

Description

Reusable Instant Cool Pack {REUSABLE INSTANT COOL PACK}

More particularly, the present invention relates to an instant cool pack which can be used once by a cool pack by endothermic reaction and then cooled or heated to be repeatedly reused by a cool pack or a hot pack.

In the summer when the temperature is high, a cool pack is often used for cooling the cold to cool down the heat that the human body has overdrawn, or to relieve fracture or swelling during exercise, or to lower the heat of the human body.

Such a cool pack is known to cool through an endothermic reaction occurring therein. Cool packs generally include solutes and liquids, both of which are stored inside a common pack. The liquid and the solute are initially separated from each other in the pack, and are mixed with each other in the pack to become the endothermic solution, thereby lowering the temperature of the cool pack.

Such a cool pack can be used immediately when needed, and is particularly convenient because it can be used in any place.

However, the above-described conventional cool pack has a disadvantage that it is disposable for only one use. That is, in the conventional cool pack, when the liquid film is knocked by applying an impact to the pack in use, the pack is cooled down because the solute is dissolved in the liquid to cause an endothermic reaction and absorbs the heat around the pack. At this time, It is dissolved in this liquid and only water of general room temperature is present. Therefore, the endothermic reaction does not occur any longer and it can not be reused, so it is common to discard after one use.

On the other hand, in the case of the conventional cool pack, it is possible to reuse the pack which has been changed into the water state at room temperature after one use and then cooled or heated to be used as a hot pack or a hot pack. However, since the hot water is simply frozen or heated, The time is so short that it can not function as a desired cool pack or hot pack.

In particular, when frozen for reuse in a cool pack, it is the same as the result of freezing the water, so it is inconvenient to use because it is considerably stiff. When it is heated by using a microwave oven or the like for reuse as a hot pack, For this reason, it is common to discard after one use.

An object of the present invention is to provide an instant cool pack that can be reused repeatedly by using a cool pack or a hot pack by cooling or heating once after using an endothermic reaction as a cool pack. .

Another object of the present invention is to maintain the inside of the pack in which the endothermic reaction has occurred in the state of gel, so that when it is cooled or heated for reuse, the latent heat is high and the holding time at low temperature or high temperature is prolonged. And which can be reused without the risk of explosion even when heated.

According to an aspect of the present invention, there is provided a reusable instant cool pack comprising: an outer pack; A first reactant and a third reactant accommodated in the outer pack; A built-in pack accommodated in the outer pack together with the first and third reactants; And a second reactant in a liquid phase contained in the viscous pack, wherein the first reactant absorbs heat during dissolution in the second reactant, and the third reactant absorbs the second reactant, And the interior of the outer pack is maintained in a gel state.

Here, the first reactant, the second reactant, and the third reactant may be contained in the outer pack at a ratio of 49.5%: 49.5%: 1.0%.

The outer pack may be made of one selected from the group consisting of PVC, PE nylon, PU, and EVA. The inner pack may be formed of a thin and thin film, and may easily be blown by an external force.

Further, the first reactant may be composed of any one or a mixture of at least one selected from UREA ammonium nitrate, ammonium chloride, barium hydroxide, ammonium thiocyanate, and ammonium bromide, and the second reactant may be composed of water And the third reactant may be composed of a cross-linked polyacrylate salt (Sodium Polyacrylate, Cross-linked).

In addition, the reusable instant cool pack according to another embodiment of the present invention includes the first reactant and the third reactant together with the gel contained in the outer pack when the pack is cooled to be accommodated in the outer pack and reused as a cool pack. And a fourth reactant to prevent the material from freezing.

Here, the fourth reactant may be composed of any one of antifreeze components selected from the group consisting of propylene glycol (PG), monoethylene glycol (MEG), ethylene glycol, glycerin, , The first reactant, the second reactant, the third reactant and the fourth reactant may be contained in the external pack at a content ratio of 42%: 42%: 1.0%: 15% in the case of this embodiment .

According to the present invention, a cool pack containing a substance changed into a gel state by a cross-linked polyacrylate salt is first cooled and then reused as a cool pack or put in a microwave oven or boiling water And can be reused as a hot pack by heating, so that the purchase cost can be reduced compared to the conventional one-time cool pack.

In addition, since the inside of the pack after the endothermic reaction is maintained in the state of gel after the endothermic reaction, when it is cooled or heated for reuse, the latent heat is high and the holding time of the low temperature or high temperature becomes long, It can be reused very effectively.

In addition, the cool pack according to the present invention maintains a gel state inside the pack, so that it is very soft and comfortable to use even when it is cooled for reuse, and it is convenient to use. When it is heated by using a microwave oven There is no risk of explosion, so that it can be reused stably.

In addition, the cool pack according to the present invention is free from the gel material when it is cooled for reuse as a cool pack because the anti-freeze ingredient is contained in the gel-state material inside the pack.

In addition, since the cool pack is mainly used outdoors, it is a one-time use in the conventional case. Therefore, after the use of the cool pack is abandoned after use, the natural environment is deteriorated. In the case of the present invention, however, Because it is possible, it can be recovered without throwing away after use, so there is also an effect of contributing to environmental protection.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially cutaway perspective view of a reusable instant cool pack according to an embodiment of the present invention,
Fig. 2 is a cross-sectional view of Fig. 1,
Fig. 3 is a sectional view of the use state of Fig. 1. Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Also, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning of the context in the relevant art and, unless explicitly defined herein, are to be interpreted as ideal or overly formal Do not.

FIG. 1 is a partially cutaway perspective view of a reusable instant cool pack according to an embodiment of the present invention, FIG. 2 is a sectional view of FIG. 1, FIG. 3 is a state in which a cool pack according to the present invention is used once, Sectional view showing the gel state.

1 to 3, a reusable instant cool pack according to an embodiment of the present invention includes a first reactant 20, a second reactant 30, And a third reaction agent 40 are embedded therein. According to a preferred embodiment, the first reactant 20, the second reactant 30 and the third reactant 40 are mixed in the external pack 10 at a ratio of 49.5%: 49.5%: 1.0% Lt; / RTI >

The outer pack 10 may be made of a material such as a PVC film, a PE nylon film, a PU and an EVA, and any sealable vinyl may be used.

The second reactant 30 is composed of a water component and the first reactant 20 is a solid component dissolved in the second reactant 30 to undergo an endothermic reaction. In this case, the second reactant 30 is a solvent, and the first reactant 20 is a solute dissolved in the second reactant 30.

The first reactant 20 may be any solid phase component that does endothermic reaction without generating gas upon dissolution in the second reactant 30. If gas is generated during the dissolving of the first reactant 20, the external pack 10 may be blown by the generated gas. For example, the first reactant 20 may be composed of urea, ammonium nitrate, ammonium chloride, ammonium thiocyanate, barium hydroxide, ammonium bromide, or a mixture of at least one thereof, Reactant 30 is preferably water.

Since the first reactant 20 is dissolved when mixed with the second reactant 30 as described above, the first and second reactants 20 and 30 should be isolated from the external pack 10 so as not to be mixed. The second reactant 30, which is preferably in a liquid state, is contained in the built-in pack 50 and embedded in the external pack 10. The built-in pack 50 is made of a soft thin film and is configured to be easily blown by an external force.

The third reactant 40 is accommodated in the outer pack 10 together with the first reactant 20 so as to be isolated from the second reactant 30. The third reactant 40 may preferably be a polyacrylate salt (Cross-linked) which is crosslinked with a water-absorbing component. The cross-linked polyacrylate salt as the third reactant 40 is in a state of a granule smaller than the second reactant 30 before the pack is used. However, if the built-in pack 50 is used for the purpose of using the pack, As shown in Fig. 3, each of the pellets becomes bulky, thereby changing the inside of the pack into a gel state.

The reusable instant cool pack having the above-described structure according to the present invention suffers a shock to the pack at the time of use, and thereby bursts the built-in pack 50. In this manner, the first reactant 20 is dissolved in the second reactant 30, and the endothermic reaction is caused to absorb the heat from the surrounding, so that the pack is cooled down. This reaction proceeds at a significantly faster rate, so that if the built-in pack 50 is knocked out, the pack is immediately cooled.

On the other hand, when the built-in pack 50 is used to use the pack, the endothermic reaction as described above occurs, and the crosslinked polyacrylate salt, which is the third reactant 40 contained in the external pack 10, (30), i.e., by absorbing water, the inside of the outer pack (10) is changed into a gel state as shown in FIG.

If the inside of the pack is kept in the state of gel as in the present invention, rather than in a state of ordinary room temperature like the conventional one after the pack is used once, the latent heat is high, so that the time to maintain the low temperature or high temperature is long when it is cooled or heated for reuse . Therefore, reuse efficiency is improved, and reuse is preferred.

When the predetermined time has elapsed, the pack is maintained at room temperature, and the packed material is kept in the gel state by absorbing the water of the crosslinked polyacrylate salt. After the pack is cooled and used by the endothermic reaction as described above, the pack in the gel state can be put in a refrigerator, cooled and reused as a cool pack, and can be reused as a hot pack by heating with a microwave oven or the like.

That is, in the case of the conventional disposable cool pack, once the endothermic reaction occurs and the material is cooled, the inside of the pack becomes a water state at normal room temperature. As described above, the latent heat is low and the efficiency of reuse is low, However, there was also a risk of explosion when heated, so most of it was disposed of after the use was avoided.

However, since the present invention is used in a cool pack by an endothermic reaction and the pack internal material is changed into a gel state by the crosslinked polyacrylate salt, the latent heat is so high that when cooled or heated for reuse, Is long and efficient, and when it is cooled for reuse as a cool pack, it is soft and easy to use because it is soft and easy to use. Even when heated for reuse as a hot pack, there is no danger of explosion, The purchase cost can be reduced compared to the pack.

Also, since the pack is recovered for reuse without discarding it after use, it is possible to prevent the problem of environmental deterioration that can be caused by discarding the conventional disposable pack once.

The reusable instant cool pack according to the present invention is not specifically shown in the drawing, but is accommodated in the outer pack together with the first and third reactants and used as a cool pack by an endothermic reaction, And a fourth reagent for preventing the gel material from freezing when the inside of the gel is cooled to reuse the conversion pack as a cool pack in a gel state.

The fourth reactant may be preferably used as an antifreeze component such as propylene glycol (PG), monoethylene glycol (MEG), ethylene glycol, glycerine, etc., When the fourth reactive agent is added, since the gel material does not freeze when cooled for reuse in a cool pack, it can be used very conveniently by keeping a soft touch.

In the case of the reusable instant cool pack according to another embodiment of the present invention, the contents of the first reactant, the second reactant, the third reactant and the fourth reactant are 42%: 42%: 1.0%: 15% As shown in FIG.

In the foregoing, the invention has been described in an illustrative manner. It is to be understood that the terminology used herein is for the purpose of description and should not be regarded as limiting. Various modifications and variations of the present invention are possible in light of the above teachings. Therefore, unless otherwise indicated, the present invention may be practiced freely within the scope of the claims.

10; an external pack 20;
30, a second reactor 40, a third reactor
50; Built-in Pack

Claims

External pack;
A first reactant and a third reactant accommodated in the outer pack;
A built-in pack accommodated in the outer pack together with the first and third reactants; And
And a second liquid reagent contained in the built-in pack,
Wherein the first reactant absorbs heat in dissolving in the second reactant, and the third reactant absorbs the second reactant to maintain the inside of the outer pack in a gel state.

The method according to claim 1,
Wherein the outer pack is made of one selected from the group consisting of PVC, PE nylon, PU, and EVA, and the inner pack is made of a thin and thin film and is easily blown out by an external force.

3. The method according to claim 1 or 2,
Wherein the first reactant is any one selected from the group consisting of urea, ammonium nitrate, ammonium chloride, barium hydroxide, ammonium thiocyanate, and ammonium bromide,
Wherein the second reactant is water,
Wherein the third reactive agent is a crosslinked polyacrylate salt.

The method according to claim 1,
Further comprising a fourth reactant that is contained in the outer pack together with the first and third reactants and prevents the gel material in the outer pack from freezing when cooled to be reused as a cool pack. Instant Cool Pack.

5. The method of claim 4,
Wherein the fourth reactant is any one selected from the group consisting of propylene glycol (PG), mono ethylene glycol (MEG), ethylene glycol, glycerin, Instant Cool Pack available.