KR20220128603A - Cold-Warm Composition And The Manufacturing Method Thereof - Google Patents

Abstract

The present invention relates to a composition for cool/hot packs and a manufacturing method thereof. According to the present invention, an eco-friendly cool/hot pack becomes a hot pack when heated in heated water or a microwave oven and becomes a cool pack when put in a freezer and frozen, such that the eco-friendly cool/hot pack can lower a freezing point and can keep a low temperature for a long time when used as a cool pack, and the eco-friendly cool/hot pack can maintain a high temperature when used as a hot pack. In particular, the cool/hot pack is prepared by vacuum-packing a material in a gel state, which is formed by dissolving bay salt in hot water and adding starch diluted in water at room temperature to the mixture. Accordingly, since the composition for eco-friendly cool/hot packs is made of natural materials, the composition is harmless to the human body and is easy to discard, thereby being eco-friendly and being used in a variety of industries, such as cool packs to keep food at low temperatures for storage and transportation, warm packs to keep cooked food warm, cool/hot air blowers, cool/hot appliances, fomentation packs, massage packs, etc.

Description

Cold-Warm Composition And The Manufacturing Method Thereof

The present invention relates to a cold and hot composition and a method for manufacturing the same, and more specifically, a cold pack (COOL AND HOT PACK) becomes a hot pack when heated in heated water or a microwave oven, and becomes a hot pack when put in a freezer and frozen When used as a cold pack, it lowers the freezing point, can keep the low temperature for a long time, and when used as a hot pack, it maintains a high temperature. It relates to a cold/hot composition (cold/hot pack) made of an eco-friendly material, characterized in that by dissolving, and separately diluting and adding starch in water at room temperature to vacuum-pack the material in a gel state, and a method for manufacturing the same.

The cold and hot pack made of the eco-friendly material of the present invention is made of natural material, is harmless to the human body, is eco-friendly because it is easy to dispose of, and is an eco-friendly cold pack for storing and transporting foodstuffs at a low temperature, a hot pack for keeping the cooked food warm, a hot and cold blower, It can be used in a variety of industries, such as cold storage and heating equipment, steam packs, and massage packs.

Conventionally, when picnicking, camping, or fishing, a plurality of ice packs are filled in an ice box to maintain a low temperature.

However, ice packs do not have a long low temperature retention time, and their freezing point is 0°C, which is not suitable for transporting refrigerated and frozen foods at various temperatures.

In particular, a lot of ice packs come when you receive a parcel delivery service, but ice packs are highly absorbent due to the nature of the raw material. In addition, although the ice pack must be disposed of in a volume-based bag, it is cumbersome to dispose of, and there are problems that are harmful to the environment because there are many cases where it is used for one-time use in the field and thrown away. For this reason, it is essential to develop a refrigerant that is environmentally friendly, is easy to dispose of, and is harmless to the human body.

In addition, current cooling fan products without an outdoor unit have been released, and cooling using water or ice packs is performed, but it is not hygienic when filled with water, and the cooling time at room temperature does not last long. For this reason, there is a need to develop a product that is hygienic, lowers the freezing point, and can sustain a long cooling time.

In addition, the on-pack is mainly used for poultice, and there is no case where the on-pack is placed on cooked food or beverage and delivered. Accordingly, there is a need to develop an on-pack product that can be used for delivery of cooked food and beverages.

[Prior art literature]

Japanese Laid-Open Patent Application Laid-Open No. 10-265769 (October 6, 1998)

An object of the present invention is to solve the problems of the prior art as described above, and by using an eco-friendly natural material, a cold pack and an on-pack can be used according to the purpose desired by the user, and the freezing point according to the desired temperature when used as a cold pack can be used as a single pack. A cold and hot composition that is harmless to the human body and easy to dispose of and its manufacturing method so that it can be used in various ways, such as when delivering cooked food by maintaining high temperature when used as a hot pack, or for poultice is to provide

According to a preferred embodiment of the present invention for achieving the above object, the method for producing a cold/hot composition made of an eco-friendly material is to heat 1000 ml of water in a container of a certain size, and add 250 g of sea salt to the heated water. -650 g is added, but the sea salt is added in a ratio of 1:0.65 to 0.25 compared to the water and stirred to obtain an aqueous sodium chloride solution;

Stop heating the sodium chloride aqueous solution at 100° C. or higher, and add 12 to 15 g of starch (prepared separately by adding 160 ml of room temperature water and stirring to dilute it sufficiently) into the boiling sodium chloride aqueous solution, but at this time, no air bubbles are formed. Stirring slowly from the bottom of the container of a certain size for 25 to 30 seconds to make the sodium chloride aqueous solution into a gel state; and

Including; and the step of rapidly putting the material in the gel state into a vacuum pack so as not to be exposed to moisture, and sealingly packaging;

The vacuum-packaged cold and hot composition becomes a refrigerant with a freezing point of 0 ° C. to -45 ° C or less when refrigerated, and the refrigeration temperature of the refrigerant is maintained for 20 to 30 hours after putting the finally manufactured cold and hot pack into the freezer and taking it out. characterized by,

The vacuum-packaged cold and hot composition becomes 70° C. to 100° C. when heated, so it can be used as a warming agent. characterized by,

It is characterized in that the higher the ratio of the added sea salt (salt) to the water, the longer the refrigerant characteristics and the thermal characteristics are maintained in proportion.

The cold and hot composition is a refrigerant, and after measuring the low temperature maintenance state over time, recycling and after a certain period of time, immersing it in water heated to 80 ° C. , The initial temperature is 79.1℃, and after 5 hours, it can be reused as an on-pack at 38.8℃,

The vacuum-packaged cold/hot composition does not use alcohol, and dissolves salt in boiling water for a short time and dilutes starch in order to maintain the dissolved state, and then the starch is added to fix the water and salt to maintain the gel state. As a result of this, it was able to maintain its properties as a refrigerant or heat agent for a long time,

By using natural materials to manufacture cold and hot packs that can be used as cold packs or hot packs, the conventional environmental problems were solved,

In order to maintain the refrigeration and heating time for a long time, the manufacturing method is different from the conventional method to maintain the mixed state of salt and water. It is maintained in a gel state, and the natural material in this state is immediately vacuum-packed,

It is characterized in that the performance of the cold pack and the on-pack can be adjusted by adjusting the amount of salt added to the boiling water during the manufacturing process,

To lower the freezing point, put the prepared hot and cold packs in the freezer -27 ° C, freeze for 24 hours, and place in close contact with the same size Styrofoam box after freezing is completed to measure the low temperature persistence, the Styrofoam box is sealed, and the Styrofoam box The measuring part of the digital thermometer was put inside, the measurement screen was visible from the outside of the Styrofoam box, and the temperature change inside the Styrofoam box was monitored by leaving the Styrofoam box in a completely sealed state with the thermometer attached to it inside the room until it reached 0℃. measured,

It can be confirmed that the low temperature state is maintained even after 40 hours,

After measuring the low-temperature maintenance state over time as a refrigerant, recycling and after a certain period of time, immersion in water heated to 80 ° C. ℃ and 38.8 ℃ after the lapse of 5 hours to confirm that the on-pack can be reused is provided a method for producing a cold and hot composition made of an eco-friendly material, characterized in that.

As described above, according to the cold/hot composition (cold/hot pack) made of an eco-friendly natural material according to the present invention and its manufacturing method, the eco-friendly cold/hot pack packaged by the manufacturing method contains a natural material and is harmless to the human body, and is easy to discard. Because it is easy and eco-friendly, it has the effect of being suitable for use especially for cooling and warming of food and beverages.

In addition, the freezing point can be lowered according to the user's purpose, and the low temperature can be maintained for a long time, so it can be used in various ways as a cold pack. It can be delivered without cooling.

And, it has the effect that it can be used in a wide range of industries, such as the use of cold and hot air machines, cold and hot compresses, cold storage, and heating appliances.

1 is a graph showing the comparison of low temperature maintenance measurement results over time in Examples 1 and 2 and Comparative Examples 1 and 2;
2 is a graph showing the measurement result of the high temperature retention time by reuse after the low temperature maintenance measurement of Example 1. Referring to FIG.
3 is a view illustrating an example of a flow for explaining a method of manufacturing a cold/hot pack made of an eco-friendly cold/hot material.

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail.

However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, 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 should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. In describing the present invention, in order to facilitate the overall understanding, the same reference numerals are used for the same components in the drawings, and duplicate descriptions of the same components are omitted.

1 is a graph showing the comparison of the low temperature maintenance measurement results over time of Examples 1 and 2 and Comparative Examples 1 and 2, and FIG. 2 is a graph showing the high temperature maintenance time measurement results by reuse after the low temperature maintenance measurement of Example 1 It is a graph, and FIG. 3 is a view showing an example of a flow for explaining a method of manufacturing a cold/hot pack made of an eco-friendly cold/hot material.

The natural material used in the present invention, sun-dried salt, has a high sodium chloride content, and uses a lot of minerals and moisture, but the type of salt, which is a natural material, is not particularly limited.

Starch (綠末) has good hygroscopicity, so it has good cooling and warming effects as a cold/hot composition (cold/hot pack). In addition, as complex carbohydrates collected from corn (corn), potatoes, and grains, natural starch such as white, tasteless, odorless powder or particulate matter is used, but the type is not limited.

The cold and hot composition made of an eco-friendly natural material of the present invention becomes a refrigerant with a freezing point of 0 ° C to -45 ° C or less when freezing, and 70 ° C to 100 ° C when heated,

Such a cold and hot composition and its manufacturing method are prepared by preparing water, salt and starch (prepared by dilution) (S2), heating 1000 ml of water (S4), and adding sea salt to boiling water to prepare 1 : Add in a ratio of 0.65~0.25 (250~650g or 1/3~3/4 compared to the amount of water, but not limited thereto) (S6) The second step (S8) of adding 12 g to 15 g of phosphorus (but not limited thereto, the amount of starch is small compared to the amount of salt, and the characteristic is that a constant amount is added compared to the amount of salt is variable) to form a gel (S8) ); and a third step (S10) of vacuum packaging the material in the gel state of the second step.

As the ratio of the added sea salt (salt) to the water increases, the refrigerant characteristics and thermal characteristics are proportionally maintained for a long time.

The cold/hot composition containing the eco-friendly natural material of the present invention and its manufacturing method will be described in detail with reference to Examples and Comparative Examples as follows. However, the scope of the present invention is not limited to the embodiments.

Example 1

Heat 1000 ml of water, add 650 g of sea salt to the heated water, and stir to obtain an aqueous sodium chloride solution.

The heating of the sodium chloride aqueous solution above +100 ° C. is stopped, and 12 to 15 g of starch (prepared by separately adding 160 ml of room temperature water and stirring to be sufficiently diluted) is added to the boiling sodium chloride aqueous solution. At this time, stir slowly from the bottom to prevent air bubbles from forming and make a gel state (about 25 to 30 seconds).

The eco-friendly cold/hot material in the gel state is quickly put into a vacuum pack so as not to be exposed to moisture, and sealed and packaged to prepare an eco-friendly cold/hot composition (cold/hot pack).

Example 2

While heating 1000 ml of water, 450 g of sun-dried salt is added and stirred to obtain an aqueous sodium chloride solution.

The heating of the sodium chloride aqueous solution above 100° C. is stopped, and 12 to 15 g of starch (prepared by separately adding 160 ml of water at room temperature and stirring to be sufficiently diluted) is added to the sodium chloride aqueous solution. At this time, stir slowly from the bottom to prevent air bubbles from forming and make a gel state (about 25 to 30 seconds).

The eco-friendly natural material in the gel state is quickly put into a vacuum pack so as not to be exposed to moisture, and sealed and packaged to prepare an eco-friendly cold/hot composition (cold/hot pack).

Comparative Example 1

A gel-type ice pack currently on the market was purchased and used.

Comparative Example 2

A cold pack with a lowered freezing point, which is currently commercially available, was purchased and used.

Example 3

Examples 1 and 2 and Comparative Examples 1 and 2 were tested for the freezing point drop and the low temperature sustained state over time. The results are shown in Table 1 and Figure 1 below.

In order to lower the freezing point, 4 packs of Examples 1 and 2 and Comparative Examples 1 and 2 were put in a freezer at -27 ° C, and frozen for 24 hours. And in order to measure the low temperature persistence, Examples 1 and 2 and Comparative Examples 1 and 2 were placed in close contact with a Styrofoam box (34.2cm×27cm×21cm) of the same size after completion of freezing, and the Styrofoam box was sealed. The measuring part of the digital thermometer was placed inside the Styrofoam box, and the measurement screen was visible from the outside of the Styrofoam box. The temperature change inside the Styrofoam box was measured until the temperature reached 0°C by leaving the Styrofoam box in a completely sealed state to which a thermometer was attached, respectively.

Table 1 below is a comparison table of low temperature maintenance over time.

As shown in Table 1, 0 hours is the initial temperature inside the Styrofoam box when the Styrofoam box is sealed and placed indoors, and the temperature was checked every hour, but only the temperature after 10 hours has elapsed in Table 1. .

It can be seen that the low temperature state of Examples 1 and 2 in Table 1 maintains the low temperature even after 40 hours, whereas in Comparative Examples 1 and 2, the temperature rises to room temperature after 20 hours with a relatively short low temperature duration. have.

Example 4

Example 1 was used as a refrigerant to measure the low-temperature maintenance state over time, recycled and after a certain period of time, immersed in water heated to 80 ° C.

The initial temperature was 79.1°C, and it was confirmed that the pack could be reused at 38.8°C after 5 hours. The results are shown in FIG. 2 .

The eco-friendly cold/warm composition (cold/warm pack) manufactured and packaged in the same way as described above contains natural substances, is harmless to the human body, is easy to dispose, and is eco-friendly, so it is particularly suitable for cold and heat preservation of food and beverages. . In addition, the freezing point can be lowered according to the user's purpose, and the low temperature can be maintained for a long time, so it can be used in various ways as a cold pack. It can be delivered without cooling.

In addition, it can be used in a wide range of industries, such as cold and hot air machines, cold and hot compresses, cold storage, and heat preservation equipment.

The refrigeration and warm state maintenance temperatures and components of the cold and hot packs manufactured by the present invention are exemplarily described in Table 2 below.

Example water salt starch refrigeration temperature Keep warm temperature One 1000ml 650g 15g -40℃ 70℃ 2 1000ml 450g 15g -30℃ 65℃ 3 1000ml 250g 15g -20℃ 50℃

The example in Table 2 is illustrative, and the refrigeration maintenance temperature and the warm heating temperature maintenance temperature will be different depending on the amount of water and salt input in the manufacturing process of the manufacturer. The refrigeration maintenance temperature was taken out after putting the finally manufactured cold and hot packs in the freezer, and the warm and hot maintenance temperature was examined after putting the finally manufactured cold and hot packs in the microwave oven and taken out, similar to the results shown in FIGS. 1 and 2 . .

On the other hand, in the prior art, alcohol is usually used to make a refrigerant, but in this case, the refrigerant properties are quickly lost, so alcohol is not used in the present invention. After diluting the starch, the starch was added to fix the water and salt to maintain the gel state, thereby maintaining the properties as a refrigerant or heat agent for a long time. According to the present invention, by manufacturing a cold pack or a hot pack that can be used as a cold pack or a hot pack by using a natural material according to the present invention, not only the conventional environmental problems are solved, but also the refrigeration and heating duration of the cold pack and the hot pack can be maintained for 20 to 30 hours. It is possible to maintain such a long time of refrigeration and heating, unlike the conventional manufacturing method to maintain a mixed state of salt and water. By maintaining the gel in a gel state and vacuum packaging the natural substances in this state immediately, it became possible to manufacture a cold/hot pack with a new effect that can maintain the duration of refrigeration and heating for 20 to 30 hours compared to the existing ones. On the other hand, it is of course possible to control the performance of the cold pack and the on-pack by adjusting the amount of salt added to the boiling water during the manufacturing process.

As described above, the best embodiment has been disclosed in the drawings and the specification. Although specific terms are used herein, they are used only for the purpose of describing the present invention, and are not used to limit the meaning or the scope of the present invention described in the claims. Therefore, it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the true technical protection scope of the present invention should be defined by the technical spirit of the appended claims.

Claims (1)

Heat 1000 ml of water in a container of a certain size, and add 250 g to 650 g of sea salt to the heated water, but add the sea salt in a ratio of 1: 0.65 to 0.25 compared to the water and stir to stir the sodium chloride aqueous solution to obtain;
Stop heating the sodium chloride aqueous solution at 100° C. or higher, and add 12 to 15 g of starch (prepared separately by adding 160 ml of room temperature water and stirring to dilute it sufficiently) into the boiling sodium chloride aqueous solution, but at this time, no air bubbles are formed. Stirring slowly from the bottom of the container of a certain size for 25 to 30 seconds to make the sodium chloride aqueous solution into a gel state; and
Including; and the step of rapidly putting the material in the gel state into a vacuum pack so as not to be exposed to moisture, and sealingly packaging;
The vacuum-packaged cold and hot composition becomes a refrigerant with a freezing point of 0 ° C. to -45 ° C or less when refrigerated, and the refrigeration temperature of the refrigerant is maintained for 20 to 30 hours after putting the finally manufactured cold and hot pack into the freezer and taking it out. characterized by,
The vacuum-packaged cold and hot composition becomes 70° C. to 100° C. when heated, so it can be used as a warming agent. characterized by,
It is characterized in that the higher the ratio of the added sea salt (salt) to the water, the longer the refrigerant characteristics and the thermal characteristics are maintained in proportion.
The cold and hot composition is a refrigerant, and after measuring the low temperature maintenance state over time, recycling and after a certain period of time, immersing it in water heated to 80 ° C. , The initial temperature is 79.1℃, and after 5 hours, it can be reused as an on-pack at 38.8℃,
The vacuum-packaged cold/hot composition does not use alcohol, and dissolves salt in boiling water for a short time and dilutes starch in order to maintain the dissolved state, and then the starch is added to fix the water and salt to maintain the gel state. As a result of this, it was able to maintain its properties as a refrigerant or heat agent for a long time,
By using natural materials to manufacture cold and hot packs that can be used as cold packs or hot packs, the conventional environmental problems were solved,
In order to maintain the refrigeration and heating time for a long time, the manufacturing method is different from the conventional method to maintain the mixed state of salt and water. It is maintained in a gel state, and the natural material in this state is immediately vacuum-packed,
It is characterized in that the performance of the cold pack and the on-pack can be adjusted by adjusting the amount of salt added to the boiling water during the manufacturing process,
To lower the freezing point, put the prepared hot and cold pack in the freezer -27 ℃, freeze for 24 hours, and after freezing to measure the low temperature persistence, it was placed in close contact with a Styrofoam box of the same size, the Styrofoam box was sealed, and the Styrofoam box The measurement part of the digital thermometer was put inside, and the measurement screen was visible from the outside of the Styrofoam box. measured,
It can be confirmed that the low temperature state is maintained even after 40 hours,
After measuring the low temperature maintenance state over time as a refrigerant, after a certain period of time by recycling it, immersing it in water heated to 80 ° C. ℃ and 38.8 ℃ after the lapse of 5 hours to confirm that it can be reused as an on-pack method for producing a cold/hot composition made of an eco-friendly material.

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