JP2023150727A - Method for manufacturing bath materials - Google Patents

Abstract

To provide a method for manufacturing bath materials that can be easily performed even by non-skilled craftsmen.SOLUTION: Provided is a method for manufacturing bath materials, comprising: a mixing step of putting as raw materials cypress sawdust, rice bran, flour, and a microorganism-containing liquid into a container with an opening and mixing the raw materials by shaking the container to mix air into the raw materials after closing the opening; and a fermentation step of fermenting the resulting mixture.SELECTED DRAWING: Figure 1

Description

The present invention relates to a method for manufacturing bath materials.

An enzyme bath is a hot bath in which the body is buried in a heat dissipating material made by adding a fermented liquid obtained by fermenting rice bran, plants, etc. to sawdust, wood chips, etc. and fermenting it. Enzyme baths have become a hot topic for their effects and efficacy due to far infrared rays, and are attracting attention from the aspects of beauty and health promotion.

Since enzyme baths use raw raw materials such as sawdust, if proper management is not carried out during their manufacture and maintenance, they are prone to the occurrence of pests and the generation of bad odors due to decomposition. In addition, in order to raise the bath materials for enzyme baths to a high temperature appropriate for hot baths, experienced and skilled craftsmen make fine adjustments to the raw materials and water content depending on the external environment such as temperature. However, managing the enzyme bath was a hassle.

Therefore, various efforts have been made to facilitate the management of enzyme baths.
For example, Patent Document 1 discloses an enzyme bath having a two-layer structure: an upper layer of an aerobic fermentation layer heated to 50 to 65°C, and a lower layer of an anaerobic fermentation tank heated to 40 to 45°C. This eliminates the need to periodically stir the entire bath additive or periodically replace the entire bath additive, making it easier to manage the bath and saving resources.

Furthermore, a footbath applying the above-mentioned enzyme bath technology has been devised. For example, Patent Document 2 discloses a foot warmer using enzyme heat, which is used by inserting both lower limbs into a container containing a fermentation raw material based on sawdust. Further, Patent Document 3 discloses an enzyme footbath that uses an enzyme breeding agent containing rice bran as a main ingredient and heat generated by a thin heater.

Japanese Patent Application Publication No. 11-192277 Utility model publication No. 11032/1983 JP2018-42880A

The manufacturing of the bath materials for enzyme baths mentioned above requires many years of experience, and it has been difficult for amateurs to manufacture bath materials that have stable heat generation sustainability enough to be used as bath materials. .
In addition, bath materials for enzyme baths are generally manufactured in volumes of several hundred liters at a time, and when trying to generate heat in a small volume of about 30 kg, it is necessary to balance fermentation heat and radiation cooling. There was a problem that it was difficult to generate enough heat.

In view of the above circumstances, it is an object of the present invention to provide a method for manufacturing bath materials that can be easily implemented even by non-skilled craftsmen.

The present invention solves the above problems by putting cypress sawdust, rice bran, wheat flour, and a microorganism-containing liquid as raw materials into a container having an opening, and after closing the opening, the container is configured to prevent air from entering the raw materials. The method for producing a bath material includes a mixing step of mixing the raw materials by shaking the container, and a fermentation step of fermenting the obtained mixture.

When manufacturing bath materials containing cypress sawdust, etc., it is necessary to stir and mix the raw materials to distribute air throughout the raw materials in order to activate the aerobic microorganisms contained in the microorganism-containing liquid. According to the manufacturing method of the present invention, since the material is mixed by shaking the container, it is possible to mix the material uniformly while incorporating air into the material.

Furthermore, by incorporating wheat flour as a raw material, it is possible to obtain a bath material that generates sufficient heat even when manufactured in a small volume.

In a preferred embodiment of the present invention, the container is an air permeable container.
By using a breathable container, dew condensation is less likely to occur during the fermentation process, and it is possible to prevent the bath materials from spoiling due to the condensation during the fermentation process.

In a preferred embodiment of the present invention, in the fermentation step, the mixture is fermented in the container.
By adopting the above configuration, it is not necessary to separately prepare a net or the like to repel insects for the mixture containing organic substances such as cypress sawdust and rice bran.

In a preferred embodiment of the present invention, in the fermentation step, the mixture is housed in a heat insulating box with an open top.
By adopting the above configuration, the temperature can be maintained during the fermentation process and the fermentation heat can be efficiently increased.

In a preferred embodiment of the present invention, the fermentation step includes a preliminary fermentation step in which the mixture is allowed to stand after the mixing step, and a main fermentation step in which the microorganism-containing liquid and/or water are mixed and fermented after the preliminary fermentation step. including the process,
The microorganism-containing liquid and/or the water are separately introduced into the mixing step and the main fermentation step.
By separately blending the microorganism-containing liquid and moisture such as water in the mixing process and the pre-fermentation process, moisture adjustment becomes easy and failures due to the addition of excessive moisture can be prevented.

In a preferred form of the invention, the total mass of the raw materials is 40 kg or less.
The manufacturing method of the present invention is particularly suitable for manufacturing small-volume bath materials of 40 kg or less. Therefore, bath materials can be easily manufactured without using equipment such as a stirring device for raw materials or a large-scale pool for generating heat.

In a preferred embodiment of the present invention, the microorganism-containing liquid is obtained by culturing the microorganisms in an aqueous solution containing microorganisms, rice bran, and brown sugar syrup.
By using a microorganism-containing liquid containing brown sugar syrup as a raw material, it is possible to produce a bath material with excellent heat retention at 60° C. or higher.

Further, the present invention provides the bath material produced by the above-mentioned manufacturing method including the fermentation step and the mixing step as the seeds of the bath material, the seeds of the bath material, cypress sawdust, rice bran, wheat flour, and the microorganism-containing The present invention relates to a method for manufacturing a bath material, which includes a step of adding a liquid, mixing it to incorporate air, and then fermenting it.
By using seeds for bath materials, bath materials of the same quality as the seeds can be produced faster and in large quantities. Furthermore, by incorporating wheat flour in the production using seeds, it is possible to obtain a bath material that generates sufficient heat even when produced in a small volume.

Furthermore, the present invention provides the method of adding rice bran and the microorganism-containing liquid to the cooled bath material manufactured by the above-mentioned manufacturing method including the fermentation step and the mixing step, and mixing the mixture so that air is mixed therein. The present invention relates to a method for producing bath materials, including a step of generating heat again.
By adding a microorganism-containing liquid and fermenting it again to generate heat, the bath material can be used multiple times.

In addition, the present invention provides a container having an opening, in which cooled bath material seeds prepared in advance, cypress sawdust, rice bran, wheat flour, and a microorganism-containing liquid are poured as raw materials, and after the opening is closed, A mixing step of mixing the raw materials by shaking the container so that air is mixed into the raw materials, and a fermentation step of fermenting the obtained mixture,
The bath material is prepared by mixing cypress sawdust, rice bran, wheat flour, and the microorganism-containing liquid so that air is mixed therein, generating fermentation heat, and then cooling the mixture.

According to the manufacturing method of the present invention, by using seeds of bath materials, bath materials of the same quality as the seeds can be manufactured in large quantities more quickly. Furthermore, since the container is shaken to mix the materials, it is possible to mix the materials uniformly while incorporating air into the materials.
Furthermore, by incorporating wheat flour as a raw material, it is possible to obtain a bath material that generates sufficient heat even when manufactured in a small volume.

In a preferred embodiment of the present invention, the seeds of the bath material are produced by the above-described bath material manufacturing method including the fermentation step and the mixing step.

In a preferred embodiment of the present invention, the fermentation step includes a preliminary fermentation step in which the mixture is allowed to stand after the mixing step, and a main fermentation step in which the microorganism-containing liquid and/or water are mixed and fermented after the preliminary fermentation step. including the process,
The microorganism-containing liquid and/or the water are separately introduced into the mixing step and the main fermentation step.
By separately blending the microorganism-containing liquid and moisture such as water in the mixing process and the pre-fermentation process, the moisture content can be easily adjusted and failures due to the addition of excessive moisture can be prevented.

The present invention also provides a method for producing bath materials produced by using the above-described production method as seeds for bath materials, and adding rice bran and the microorganism-containing liquid to the bath materials that have been cooled after production. This is a method for manufacturing bath materials, which includes a step of heating the bath material again after mixing the materials so as to cause the mixture to heat up.
By adding a microorganism-containing liquid and fermenting it again to generate heat, the bath material can be used multiple times.

Further, the present invention includes a reheating step of reheating the bath material obtained by mixing and fermenting cypress sawdust, rice bran, and a microorganism-containing liquid,
In the reheating step, the bath material to be reheated and the microorganism-containing liquid are put into a container having an opening, and the bath material is mixed by shaking the container so that air is mixed into the bath material. This method includes a re-mixing step of fermenting the obtained mixture, and a re-fermenting step of fermenting the obtained mixture.
By including the reheating step, the bath material can be used multiple times.

A preferred embodiment of the present invention is characterized in that the bath material produced by the above method including the fermentation step and the mixing step is reheated.

In a preferred embodiment of the present invention, the bathing material is for hands or feet.
According to the manufacturing method of the present invention, it is possible to obtain a bath material capable of generating heat in a small volume, so that it can be suitably used for local hot baths for hands, feet, etc.

According to the method for manufacturing bath materials of the present invention, bath materials can be stirred and mixed using a simple method using a container and fermentation heat can be generated, so that even non-skilled craftsmen can easily manufacture bath materials. be able to.

It is a flowchart figure showing the manufacturing process of the manufacturing method of the bath material of this invention.

The present invention will be described in detail below, but the technical scope of the present invention is not limited to the following explanation, and design changes can be made as appropriate.

In the present invention, "bath material" refers to a heat generating material used during bathing, and specifically refers to a heat generating material used in an enzyme bath.
Furthermore, in the present invention, "fermentation" includes both aerobic fermentation (so-called oxidative fermentation) and anaerobic fermentation by microorganisms.

Furthermore, as detailed below, in the present invention, "water" may be added to adjust the amount of water. The temperature of the water used in such a case is not particularly limited, but in order to accelerate the start of fermentation, it is preferable to use a temperature of 40 to 60°C, more preferably a temperature of 50 to 60°C.

(1) Method for manufacturing bath materials The method for manufacturing bath materials of the present invention is characterized by adding raw materials into a container and mixing the raw materials by shaking the container so that air is mixed into the raw materials. This allows the raw materials to be mixed quickly and uniformly while blowing air into them.

The container used preferably has air permeability. This promotes aerobic fermentation within the bag, making it possible to obtain a bathing material with a high heat dissipation temperature.

Although the shape of the container is not particularly specified, it is preferably bag-shaped. The use of bags has the advantage of speeding up production and making cleanup easier. The bag used is preferably a nylon combine bag.

The volume of the bag can be appropriately selected depending on the volume of the bath material to be manufactured. Specifically, it is preferably 20 to 120 L, more preferably 30 to 110 L.
The bag having the above-mentioned volume has a suitable size when the manufacturer shakes the bag and mixes the raw materials in the bag in the mixing process described below.

Moreover, the method for manufacturing bath materials of the present invention allows manufacturing in small volumes. Specifically, the total mass of the raw materials is preferably 50 kg or less, more preferably 40 kg or less, still more preferably 30 kg or less.

Hereinafter, the method for manufacturing bath materials according to the present invention will be explained in detail.

The method for manufacturing bath materials of the present invention involves putting cypress sawdust, rice bran, wheat flour, and a microorganism-containing liquid as raw materials into a container having an opening, and after closing the opening, the method is such that air is mixed into the raw materials. The method includes a mixing step S11 in which the raw materials are mixed by shaking a container, and a fermentation step S12 in which the obtained mixture is fermented.

Commercially available cypress sawdust and rice bran can be used in the present invention. Moreover, it is preferable to use dry powder of rice bran.

The microorganism-containing liquid used in the present invention contains microorganisms activated by culturing for a predetermined period of time, and fermentation products produced by the microorganisms. In this specification, the microorganism-containing liquid is also referred to as an enzyme liquid.

The microorganism-containing liquid can be obtained by mixing microorganisms, rice bran, and saccharides with water as appropriate, and culturing the mixture preferably for 3 days or more. The culture of the microorganism-containing solution is preferably carried out at a room temperature of 20° C. and a relative humidity of 35%. The content of water contained in the aqueous solution to be cultured is not particularly limited as long as microorganisms can proliferate. Alternatively, water may be added by directly blending a microorganism sold in liquid form such as EM bacteria-1 shown below.

The microorganisms used for producing the microorganism-containing liquid are not particularly limited as long as they exhibit activity in the fermentation process. For example, aerobic microorganisms, anaerobic microorganisms, or these may coexist, and specific examples include nitrifying bacteria, filamentous bacteria, yeast bacteria, lactic acid bacteria, and actinomycetes.
In the present invention, lactic acid bacteria and/or EM bacteria (product name: EM bacteria-1, manufactured by EM Institute), etc. can be preferably used.

Examples of sugars include brown sugar syrup, oligosaccharides, honey, white sugar, etc., but it is preferable to use brown sugar syrup in the present invention.
Bath materials manufactured using a microorganism-containing liquid containing brown sugar syrup as a sugar have excellent temperature stability of 60°C or higher.

The rice bran is preferably a dry powder.
In addition, other plants, seaweed powder, etc. can also be appropriately blended as raw materials for the microorganism-containing liquid. Examples of plant/seaweed powders include mugwort, herbs, and kelp powder.

In the present invention, the obtained microorganism-containing liquid can be used as it is or can be diluted with water. From the viewpoint of reducing raw material costs, it is preferable to dilute the microorganism-containing liquid before use. The dilution concentration of the microorganism-containing liquid is preferably 3 to 10%, more preferably 5 to 10%.

Further, in the present invention, it is preferable to use wheat flour as a raw material. As the wheat flour, soft flour, medium flour, strong flour, etc. can be used, but it is preferable to use soft flour in the present invention.
Flour is incorporated as a protein source used during fermentation. By incorporating wheat flour, even if the bath material is produced in a small volume, it is possible to quickly generate heat to 60° C. or higher.

Next, each step of the manufacturing method of the present invention will be explained.

(1-1) Mixing step S11
In the mixing step S11, first, cypress sawdust, rice bran, and a microorganism-containing liquid are put into a container.

The amount of cypress sawdust blended is preferably 15 to 30% by mass, more preferably 20 to 30% by mass, and even more preferably 20 to 28% by mass, based on the total mass (100% by mass) of the raw materials.

The blending amount (dry mass) of rice bran is preferably 20 to 65% by mass, more preferably 20 to 60% by mass, even more preferably 30 to 50% by mass, particularly preferably is 30 to 45% by mass.
Moreover, it is preferable to use dry powder of rice bran.

The blending amount of wheat flour is preferably 1 to 20% by mass, more preferably 3 to 20% by mass, even more preferably 3 to 15% by mass, particularly preferably 3 to 13% by mass, based on the total mass (100% by mass) of the raw materials. Mass%.

The blending amount of the microorganism-containing liquid is preferably 0.0001% by mass or more based on the total mass (100% by mass) of the raw materials in terms of the microorganism-containing solution (undiluted solution). Specifically, it can be 0.0001 to 0.5% by mass.

Further, in order to adjust the moisture content of the raw materials, water may be added separately in addition to the above raw materials. On the other hand, the ratio of water content to the total mass of raw materials may be adjusted by adjusting the dilution concentration of the microorganism-containing liquid.

The total amount of water relative to the total mass of raw materials is preferably 10 to 45 mass%, more preferably 15 to 45 mass%, even more preferably 20 to 45 mass%, especially Preferably it is 25 to 35% by mass.
Here, in the present invention, "moisture" among the raw materials to be blended refers to the microorganism-containing liquid and water that does not contain microorganisms, and the "total amount of moisture" refers to the microorganism-containing liquid and the water. Refers to the total amount of ingredients.

From the viewpoint of obtaining a bath material with an exothermic temperature of 60°C or higher and excellent temperature sustainability, when the external environment has a temperature of 20°C or higher and lower than 30°C, based on the total mass (100% by mass) of the raw materials, It is preferable to blend 15 to 30 mass % of cypress sawdust, 20 to 60 mass % of rice bran, 3 to 20 mass % of wheat flour, and 15 to 45 mass % of water in total.
By heating the bath material to a temperature of 60°C or higher, the growth of corrosive bacteria and the like can be suppressed.

In addition, from the viewpoint of obtaining a bath material with an exothermic temperature of 80°C or higher and excellent temperature sustainability, it is necessary to add 20 to 30% by mass of cypress sawdust and 30% of rice bran to the total mass (100% by mass) of the raw materials. It is preferable to blend the flour in an amount of 3 to 13% by mass, and a total of 25 to 35% by mass of water.
When manufacturing bath materials using a small amount of raw materials, there is a problem in that the temperature does not easily rise due to heat radiation. By mixing the raw materials in the above amounts and increasing the maximum exothermic temperature to 80° C. or higher, the bath material can maintain a temperature suitable for hot baths even when manufactured in a small volume.

In addition, in the present invention, "temperature is maintained" means that the power to raise the temperature to a certain temperature (for example, 60° C. or higher) is maintained. The temperature of bath materials changes depending on the time of the day, so even if the temperature sometimes drops below the specified temperature within a certain period, the raw materials can be stirred and mixed with air without replacing them. If it has the ability to generate heat above the specified temperature again, it is determined that the temperature is sustainable.

After adding each raw material, it is preferable to mix the raw materials with bare hands so that the moisture is uniformly distributed. This allows the resident bacteria that have adhered to the hands to adhere to the raw materials.

Then, close the opening of the container and shake the container rhythmically up and down and left and right to mix the raw materials. Thereby, the raw materials can be mixed uniformly while allowing air to be mixed into the raw materials. The shaking time of the container is preferably about 10 minutes.

(1-2) Fermentation step S12
In the fermentation step S12, after the mixing step S11, the resulting mixture is allowed to stand and ferment. It is preferable that the fermentation process S12 is performed in two stages: a preliminary fermentation process S12a and a main fermentation process S12b.

The preliminary fermentation step S12a is a step of fermenting the mixture in a container. In this step, it is preferable to leave the mixture still for about 30 minutes to ferment.

The main fermentation step S12b is a step in which water is added after the preliminary fermentation step S12a and fermentation is performed again. It is preferable that the amount of water introduced in this step is appropriately adjusted depending on the amount of water blended in the mixing step S11. Here, the total amount of water described in the above-mentioned mixing step S11 is the total amount of the water added in the mixing step S11 and the amount of water added in the preliminary fermentation step S12a.
In this way, by adjusting the timing of adding moisture such as water into two times, the mixing step S11 and the main fermentation step S12b, the timing of adding moisture becomes clear and the amount of water can be easily adjusted. be able to.

Furthermore, in the main fermentation step S12b, a microorganism-containing liquid may be added instead of or together with water. In this case, the total amount of the microorganism-containing liquid (undiluted solution) input in the mixing step S11 and the main fermentation step S12b becomes the amount (mass%) of the microorganism-containing liquid (undiluted solution) described in the above-mentioned mixing step S11. It is preferable.

In the main fermentation step S12b, it is preferable to add lactic acid bacteria together with water. The type of lactic acid bacteria used is not particularly limited, and the amount added is preferably 1 to 10 ml, more preferably 3 to 5 ml.

The fermentation period in the main fermentation step S12b is preferably 7 days or more. At this time, it is preferable to ferment the mixture while it is housed in a container. By storing the mixture in a container, there is no need to separately prepare a net or the like for the mixture to repel insects.

Further, in the main fermentation step S12b, it is preferable that the mixture is fermented by placing the whole container in an insulated box made of styrofoam or the like. Furthermore, it is preferable to ferment with a part of the box open. Thereby, spoilage of the mixture due to dew condensation during fermentation can be suppressed. Specifically, a portion of the top, sides, etc. of the box may be open. In the present invention, it is preferable to perform fermentation with the top of the box open.

Further, in the main fermentation step S12b, it is preferable to shake the container every 24 hours to mix air into the mixture. Thereby, fermentation heat can be stably released.

After fermentation is complete and heat is steadily released, the resulting mixture can be used as a bath material. Bath materials can be used immediately after production, or can be stored by closing the container with a ventilated lid, or in the case of a bag, closing the mouth and leaving it in a cool, dark place. The cooled bath material can be made to generate heat again by (3) reheating of the bath material, which will be described later.

In a preferred embodiment, the amount of water added in the mixing step S11 is kept constant, and the amount of water added in the main fermentation step S12b is adjusted depending on the temperature and relative humidity of the external environment. This makes it possible to easily adjust the amount of water.

When keeping the amount of water added in the mixing step S11 constant, the amount of water added in the mixing step S11 is equal to the total mass (100% by mass) of the raw materials under the condition that the external environment temperature is 20°C or more and less than 30°C. On the other hand, it is preferably 5 to 30% by weight, more preferably 15 to 30% by weight, and even more preferably 18 to 20% by weight.
By setting the amount of water added in the mixing step S11 within the above range, the water does not become excessive, and microorganisms can be activated in the subsequent fermentation step S12 to release sufficient fermentation heat.
In this case, it is preferable that a necessary amount of water including the microorganism-containing liquid be added in the mixing step S11, and an amount of water depending on the external environment be added in the main fermentation step S12b.

(2) Method for manufacturing bath materials using seeds The present invention also relates to a method for manufacturing bath materials using a portion of the bath materials as seeds. Since the seeds of the bath materials that are added serve as the "seed bacteria" for fermentation, by mixing a small amount of the seeds of the bath materials, it is possible to easily produce bath materials of the same quality as the seeds of the bath materials in a short period of time. I can do it.

The "bath material seeds" in the present invention refer to those obtained by mixing cypress sawdust, rice bran, wheat flour, and a liquid containing microorganisms, generating fermentation heat, and then cooling the mixture. In a preferred embodiment of the present invention, the seeds of the bath material are all or part of the bath material manufactured by the above-mentioned method (1) for manufacturing a bath material.

Hereinafter, a method for manufacturing bath materials using seeds of bath materials (hereinafter also referred to as a manufacturing method using seeds) will be explained in detail.

The production method using seeds of the present invention involves putting cooled bath material seeds, cypress sawdust, rice bran, flour, and a microorganism-containing liquid into a container with an opening, closing the opening, and then adding the raw materials to the container. It includes a mixing step in which the raw materials are mixed by shaking the container to introduce air, and a fermentation step in which the resulting mixture is fermented.
The seeds of the bath material may be manufactured in advance using the above-mentioned bath material manufacturing method.

(2-1) Mixing step S21
In the mixing step S21, cypress sawdust, rice bran, and a microorganism-containing liquid are newly mixed with the seeds of the bath material. For details of the preferred mixing method and the raw materials used, the description in (1-1) is referred to.

The amount of cypress sawdust blended is preferably 30 to 65% by mass, more preferably 35 to 55% by mass, even more preferably 35 to 50% by mass, based on the total mass (100% by mass) of the raw materials.

The amount of rice bran (dry mass) is preferably 30 to 65% by mass, more preferably 40 to 65% by mass, and even more preferably 50 to 60% by mass, based on the total mass (100% by mass) of the raw materials.

The blending amount of wheat flour is preferably 0.2 to 3% by mass, more preferably 0.7 to 2.5% by mass, and even more preferably 1.5 to 2.5% by mass, based on the total mass (100% by mass) of the raw materials. It is 5% by mass.

The amount of seeds in the bath material is preferably 0.2 to 3% by mass, more preferably 0.7 to 2.5% by mass, and even more preferably 1.5% by mass, based on the total mass (100% by mass) of the raw materials. ~2.5% by mass.

The blending amount of the microorganism-containing liquid is preferably 0.0001% by mass or more based on the total mass (100% by mass) of the raw materials in terms of the microorganism-containing solution (undiluted solution). Specifically, it can be 0.0001 to 0.002% by mass.

Further, in order to adjust the moisture content of the raw materials, water may be added separately in addition to the above raw materials. On the other hand, the ratio of water content to the total mass of raw materials may be adjusted by adjusting the dilution concentration of the microorganism-containing liquid.

The total amount of moisture is preferably 0.04 to 0.15% by mass, more preferably 0.04% by mass, based on the total mass (100% by mass) of the raw materials, under conditions where the temperature of the external environment is 20°C or higher and lower than 30°C. 0.05 to 0.1% by weight, more preferably 0.05 to 0.07% by weight.

From the viewpoint of obtaining a bath material with an exothermic temperature of 60°C or higher and excellent temperature sustainability, when the external environment has a temperature of 20°C or higher and lower than 30°C, the seeds of the bathing material should be set at 0.7 to 2.5°C. It is preferable to blend 30 to 65 mass % of cypress sawdust, 30 to 65 mass % of rice bran, 0.7 to 2.5 mass % of wheat flour, and 0.04 to 0.15 mass % of water in total.

In addition, from the viewpoint of obtaining a bath material with an exothermic temperature of 80°C or higher and excellent temperature sustainability, when the external environment has a temperature of 20°C or higher and lower than 30°C, the seeds of the bathing material should be set at 1.5 to 2 .5% by mass, 35-50% by mass of cypress sawdust, 50-60% by mass of rice bran, 1.5-2.5% by mass of wheat flour, and 0.05-0.07% by mass of water in total. preferable.

After adding the raw materials, shake the container to mix the raw materials as described in (1-1) above. The shaking time of the container is preferably about 10 minutes.

(2-2) Fermentation step S22
In the fermentation step S22, after the mixing step S21, the obtained mixture is left to stand and fermented. It is preferable that the fermentation step S22 is performed in two stages: a preliminary fermentation step S22a and a main fermentation step S22b.

The preliminary fermentation step S22a can be performed in the same manner as the preliminary fermentation step S12a described in (1-2) above. In this step, it is preferable to leave the mixture for about 5 minutes to ferment. The details of the preferred embodiment refer to the description of the preliminary fermentation step S12a in (1-2) above.

The main fermentation step S22b can be performed using the same procedure as the main fermentation step S12b described in (1-2) above. Note that in the main fermentation step S22b, the fermentation time is about 24 hours. The details of the preferred embodiment refer to the description of the main fermentation step S12b in (1-2) above.

Note that when the amount of water added in the mixing step S21 is kept constant and the amount of water added in the main fermentation step S22b is adjusted depending on the temperature and relative humidity of the external environment, the amount of water added in the mixing step S21 is Preferably 0.01 to 0.07% by mass, more preferably 0.02 to 0.04% by mass, based on the total mass (100% by mass) of the raw materials, under conditions where the environmental temperature is 20°C or higher and lower than 30°C. %.

Manufactured bath materials can be used immediately after manufacture, or can be stored by closing the container with a ventilated lid, or in the case of a bag, closing the mouth and leaving it in a cool, dark place. can. The cooled bath material can be made to generate heat again through (3) reheating of the bath material, which will be described later.

In addition, in this embodiment, as a preferable embodiment, the container is shaken in the mixing step S21 to mix the raw materials. If so, the mixing method is not limited to this. For example, a method may be adopted in which the raw materials are mixed in a container with an open top and the materials are mixed using an arm or existing stirring equipment.

(3) Re-heating of bath material The bath material obtained by the above production method can be used as a bath material for enzyme baths by once cooling and subjecting it to exothermic treatment again.
That is, the present invention also relates to a method for producing a bath material, which includes a reheating step of reheating a bath material obtained by mixing and fermenting cypress sawdust, rice bran, and a microorganism-containing liquid.

In a preferred embodiment of the present invention, the bath material to be reheated is a bath material manufactured by the above-mentioned (1) method for manufacturing bath materials or (2) method for manufacturing bath materials using seeds.

The method for reheating bath materials will be explained in detail below.

The manufacturing method of the present invention includes a reheating step of mixing cypress sawdust, rice bran, and a microorganism-containing liquid so that air is mixed therein, and reheating the bath material obtained by fermenting the mixture. The reheating step includes a remixing step S31 in which the bath material to be reheated and the microorganism-containing liquid are put into a container having an opening, and the container is shaken to mix air into the bath material. , including a re-fermentation step S32 of fermenting the obtained mixture.

In addition, in this specification, the bath material that has been cooled after being manufactured is also referred to as a cooling bath material.

(3-1) Remixing step S31
In the remixing step S31, rice bran and a microorganism-containing liquid are added to the cooling bath material and uniformly mixed with the bath material. For details of the raw materials used, refer to the description in (1-1).

The blending amount of rice bran is preferably 0.03 to 0.065 parts by mass, more preferably 0.04 to 0.055 parts by mass, and even more preferably 0.045 to 0.055 parts by mass, per 100 parts by mass of the cooling bath material. Part by mass.

The blending amount of the microorganism-containing liquid is preferably 0.0001 parts by mass or more based on 100 parts by mass of the cooling bath material in terms of the microorganism-containing liquid (undiluted solution). Specifically, it is preferably 0.0001 to 0.002 parts by mass.

Further, in order to adjust the moisture content of the raw materials, water may be added separately in addition to the above raw materials. On the other hand, the ratio of water content to the total mass of raw materials may be adjusted by adjusting the dilution concentration of the microorganism-containing liquid.

The total amount of moisture is preferably 0.04 to 0.08 parts by mass, more preferably 0.04 to 0.08 parts by mass, based on 100 parts by mass of the cooling bath material under the condition that the temperature of the external environment is 20°C or higher and lower than 30°C. The amount is 0.075 parts by mass, more preferably 0.055 to 0.065 parts by mass.

From the viewpoint of obtaining a bath material with an exothermic temperature of 60°C or higher and excellent temperature sustainability, rice bran may be added to 0.0% per 100 parts by mass of cooling bath material when the external environment has a temperature of 20°C or higher and lower than 30°C. It is preferable to add 0.03 to 0.065 parts by mass of water, and a total of 0.04 to 0.08 parts by mass of water.

In addition, from the viewpoint of obtaining a bath material with an exothermic temperature of 80°C or higher and excellent temperature sustainability, rice bran is It is preferable to blend 0.04 to 0.055 parts by mass of water and a total of 0.055 to 0.065 parts by mass of water.

After adding the raw materials, mix until homogeneous, crushing any hardened parts. The raw materials may be mixed with bare hands, or the raw materials may be mixed by shaking the container as in (1-1) above. When using a container, preferred embodiments refer to the description in (1) above.

(3-2) Re-fermentation step S32
In the re-fermentation step S32, after the re-mixing step S31, the obtained mixture is left standing to generate heat. It is preferable that the re-fermentation step S32 is performed in two stages: a preliminary fermentation step S32a and a main fermentation step S32b.

For details of a preferred embodiment of the preliminary fermentation step S32a, the description of the preliminary fermentation step S22a according to (2-2) above is referred to.

The details of the preferred embodiment of the main fermentation step S32b refer to the description of the main fermentation step S22b in (2-2) above.

Note that when the amount of water added in the remixing step S31 is constant and the amount of water added in the main fermentation step S32b is adjusted depending on the temperature and relative humidity of the external environment, the amount of water added in the remixing step S31 is , preferably 0.01 to 0.07 parts by mass, more preferably 0.02 to 0.05 parts by mass, based on 100 parts by mass of the cooling bath material, under conditions where the temperature of the external environment is 20°C or higher and lower than 30°C. , more preferably 0.02 to 0.04 parts by mass.

By carrying out the reheating process, even if the bath material has been cooled once to 50° C. or lower, the bath material can be made to generate heat in a simple manner.

Moreover, the bath material obtained by the manufacturing method of the present invention can be used multiple times by replacing a part of it with a new raw material and performing maintenance work in which it is subjected to exothermic treatment again.
In the maintenance work, some of the bath materials are discarded, and a mixture of the discarded mass, equivalent amounts of cypress sawdust and rice bran is added, and the heat generation process is performed again. In the exothermic treatment, it is preferable to further add a microorganism-containing liquid.

For the mixing method, microorganism-containing liquid, and water content in the maintenance work, the description in (3-1) above is used. In such a case, in the description in (3-1), "parts by mass relative to 100 parts by mass of the cooling bath material" shall be read and applied as "parts by mass relative to 100 parts by mass of the total amount of raw materials to be mixed."
Furthermore, the heat generation process during maintenance work can be performed using the same procedure as (3-2) above.

The bath material obtained by the production method of the present invention can be used for enzyme baths.
Further, according to the manufacturing method of the present invention, bath materials can be manufactured in small quantities of about 30 to 40 kg. This makes it possible to easily produce the required amount of enzyme bath without having to have equipment such as a large-capacity pool for enzyme baths or special equipment for stirring materials.

Moreover, the obtained small volume bath material can be used as a bath material for use in local parts of the body, such as for hand or foot baths. Specifically, by placing the manufactured bath material in an insulated box and placing your hands or feet inside, you can enjoy a warm bath using natural fermentation heat.

Normally, in an enzyme bath, the temperature of the bath material changes every 24 hours depending on the state of microorganisms. Furthermore, when fermenting raw materials from scratch to obtain bath materials, it takes 24 hours or more to reach a temperature stable enough to use as bath materials. Therefore, in the case of enzyme baths that utilize only natural fermentation heat, it has been difficult to immediately raise the temperature of the enzyme bath according to the needs of the customers.

However, by using the manufacturing method of the present invention, the manufactured bath material can be cooled and stored, and immediately reheated and used when necessary. Therefore, the required amount of bath materials can be quickly prepared according to the customer's requests. As described above, according to the manufacturing method of the present invention, it is possible to adjust the desired temperature using naturally generated fermentation heat without using an external heater such as a boiler, and furthermore, the far infrared rays generated can be used to warm the body. Since it can be heated from the inside, it is possible to provide an enzyme bath with higher customer satisfaction.

The present invention will be described in more detail below using Examples. In this example, %(
Expressions in percentages are based on mass unless otherwise specified.

<Test Example 1> Examination of the mixing amount of raw materials Test Example 1 was conducted under conditions of a temperature of 20° C. and a relative humidity of 50%, except for (1-1) adjustment of the enzyme solution (microorganism-containing solution).

(1-1) Preparation of enzyme solution (solution containing microorganisms) 2L of brown sugar syrup made from liquefied brown sugar, 1L of EM bacteria (EM-1, manufactured by EM Bacteria Research Institute) as microorganisms, 10mL of lactic acid bacteria, and rice bran (powder) 6 L, 10 mL of kelp powder, and 10 mL of mugwort powder were mixed, and the mixture was allowed to stand for 3 days at a room temperature of 20° C. and a relative humidity of 35%. 14 L of pure water was added to 1 L of the obtained stock solution to dilute it to about 7%, to obtain an enzyme solution (liquid containing microorganisms).

(1-2) Manufacture of bath materials The raw materials shown in Table 1 below were sequentially charged into a nylon combine bag (external size: 0.5 m x 0.3 m x 0.7 m) and mixed evenly with bare hands. Thereafter, the opened part was closed, the bag was lifted in front of the chest, and the bag was shaken rhythmically from side to side and up and down for 10 minutes. After shaking and mixing, the bag was allowed to stand for 30 minutes for preliminary fermentation.

After preliminary fermentation, 5 mL of water and lactic acid bacteria were added to the combine bag in the amount shown in Table 1 above (second time), and the mixture was rubbed from the top of the bag to mix uniformly.
Thereafter, the combine bag was placed in a heat-insulating box made of polystyrene foam, and allowed to stand for 7 days in a place protected from direct sunlight and wind for main fermentation. During the main fermentation, the mixture was stirred every 24 hours by shaking the combine bag to introduce air into the mixture. After the main fermentation, the maximum temperature of the seeds of the obtained bath material, the duration of the temperature, and the time required to start releasing heat were measured (Table 1).

(result)
As shown in Table 1, a heat generating bath material could be obtained by the above procedure. Further, in Examples 1-1 to 1-7, the temperature of 60° C. or higher was maintained for 15 hours or more. From this, based on the total amount of the mixture (100% by mass), 15 to 30% by mass of cypress sawdust, 20 to 60% by mass of rice bran, 3 to 20% by mass of wheat flour, and a total of 15 to 45% of water should be blended. It was found that it was possible to produce a bath material that stably generates heat at 60°C or higher.

Further, in Examples 1-1 to 1-3, the temperature of 80° C. or higher was maintained for 15 hours or more. From this, based on the total amount of the mixture (100% by mass), 20 to 30% by mass of cypress sawdust, 30 to 50% by mass of rice bran, 3 to 13% by mass of wheat flour, and 25 to 35% by mass of water should be blended. It was found that it was possible to produce a bath material that stably generates heat at 80°C or higher.

(1-3) Production of 30 kg of bath material using bath material seeds The raw materials listed in Table 2 below were sequentially charged into a nylon combine bag similar to (1-2), and the raw materials solidified into dumplings. I mixed it with my bare hands while crushing it. As the seeds for the bath material, the bath material produced in (1-2) above was naturally cooled for 24 hours in a place protected from wind.
After mixing, the opened part was closed, the bag was lifted in front of the chest, and the bag was rhythmically shaken up and down and left and right for 10 minutes. After shaking and mixing, the bag was allowed to stand for 5 minutes for preliminary fermentation.

After the preliminary fermentation, 3 mL of water and lactic acid bacteria in the amount shown in Table 2 above were added to the combine bag, and the mixture was rubbed from the top of the bag to mix uniformly. Thereafter, the combine bag was placed in an insulated container and left standing in a place protected from direct sunlight and wind for main fermentation.
After the main fermentation, the maximum temperature, temperature duration, and time required until the start of heat dissipation of the obtained bath material were measured (Table 2).

(result)
As shown in Table 3, bath materials capable of dissipating heat of 60° C. or higher were manufactured by the above manufacturing method. Furthermore, in all of Examples 2-1 to 2-9, the time from mixing the materials until the start of heat radiation was 1 hour.

Further, Examples 2-1 to 2-7 in Table 3 maintained a temperature of 60° C. or higher for 15 hours or more. From this, based on the total amount of the mixture (100% by mass), 35 to 65% by mass of cypress sawdust, 30 to 60% by mass of rice bran, 0.7 to 2.5% by mass of bath material seeds, and 0% of wheat flour. It was found that a bath material with excellent heat dissipation stability at temperatures of 60° C. or higher can be produced by blending 0.7 to 2.5% by mass and 0.04 to 0.15% by mass of water.

Further, Examples 2-1 to 2-3 in Table 2 maintained a temperature of 80° C. or higher for 15 hours or more. From this, 35-50% by mass of cypress sawdust, 50-60% by mass of rice bran, 1.5-2.5% by mass of bath material seeds, 1.5-2.5% by mass of wheat flour, and 50-60% by mass of rice bran, 1.5-2.5% by mass of wheat flour, and 50-60% by mass of rice bran. It has been found that by blending a total of 0.05 to 0.07% by mass, it is possible to produce a bath material with excellent heat dissipation stability above 60°C.

Moreover, by manufacturing using bath material seeds, it becomes possible to manufacture about 30 kg of bath materials in a shorter period of time than in the manufacturing of bath materials shown in (1).

(1-4) Relapse of heat in bath material The bath material obtained in (1-3) was placed in a nylon bag, the opening of the bag was closed, and the bag was left standing in a cool, dark place for 24 hours to cool. Thereafter, the raw materials shown in Table 3 below were added to the cooled bath material, and preliminary fermentation was performed for 5 minutes.

After preliminary fermentation, water in the amount shown in Table 3 above was added to the combine bag and mixed uniformly by rubbing the mixture from above the bag. Thereafter, the combine bag was placed in an insulated box, and main fermentation was carried out in a place protected from direct sunlight and wind. Thereafter, the maximum temperature, temperature duration, and time required until the start of heat radiation of the obtained bath material were measured (Table 3).

As shown in Table 3, it was shown that the bath material could be reheated by the above-mentioned reheating method. Further, in Examples 3-1 to 3-7, the temperature of 60° C. or higher was maintained for 8 to 12 hours. As a result, by adding 0.03 to 0.065 parts by mass of rice bran and 0.04 to 0.08 parts by mass of water to 100 parts by mass of the cooled bath material, the bath material is reheated to 60°C. It became clear that it could be done.

Further, in Examples 3-1 to 3-3, the maximum temperature rose to 80° C. or higher. From this result, by adding 0.04 to 0.055 parts by mass of rice bran and 0.055 to 0.065 parts by mass of water to 100 parts by mass of cooling bath materials, the maximum temperature of the bath materials can be increased to 80°C. It has been shown that it is possible to cause fever to relapse.

<Test Example 2> Examination of raw materials for enzyme solution (microbe-containing solution) (2-1) Preparation of enzyme solution (microbe-containing solution) The raw materials in Table 4 below were mixed, and the conditions were a room temperature of 20°C and a relative humidity of 35%. It was left undisturbed for 3 days. The obtained stock solution was diluted three times to obtain an enzyme solution (microorganism-containing solution).

(2-2) Production of bath material A bath material was produced in the same manner as in (1-2) above using a nylon combine bag at a room temperature of 20°C and a relative humidity of 30%. As raw materials, 5L of cypress sawdust, 15L of rice bran, 0.007kg of wheat flour, 0.25L of enzyme solution (microorganism-containing solution), and 2L of water were mixed.
After the main fermentation, the maximum temperature, temperature duration, and time required to start heat dissipation of the obtained bath material were measured (Table 5).

(2-3) Production of bath material using bath material seeds At room temperature of 20°C and humidity of 50%, use a nylon combine bag to produce bath material using the same procedure as in (1-2) above. was manufactured. That is, 13 kg of cypress sawdust, 15 kg of rice bran, 0.5 kg of bath material seeds, 0.9 mL of enzyme solution (solution containing microorganisms), and 10 mL of water were mixed, and after preliminary fermentation for 5 minutes, 18 mL of water was added to carry out main fermentation. Ta.
After the main fermentation, the maximum temperature, temperature duration, and time required to start heat dissipation of the obtained bath material were measured (Table 5).

(2-4) Relapse of heat in bath materials At a room temperature of 20°C and a relative humidity of 50%, 30 kg of cooled bath materials, 0.015 kg of rice bran, and an enzyme solution (a microorganism-containing solution) were placed in a nylon combine bag. ) and 18 mL of water were added, and a bath material was produced in the same manner as in (1-2).
After the main fermentation, the maximum temperature, temperature duration, and time required to start heat dissipation of the obtained bath material were measured (Table 5).

(2-5) Results and Discussion As shown in Table 5, Example 4, which used an enzyme solution (microorganism-containing solution) that was fermented with brown sugar syrup mixed in, was a method for manufacturing bath materials according to (2-2). , (2-3) The method for manufacturing bath materials using seeds, and the method for reheating bath materials (2-4) can be used to stably generate heat to 60°C or higher. The maximum temperature was 80°C or higher.
On the other hand, in Comparative Examples 1 to 3, which used fermented enzyme solutions (solutions containing microorganisms) mixed with other sugars, the maximum temperature did not reach 80°C.

From the above results, it was found that by using a fermented microorganism-containing liquid containing brown sugar syrup as a sugar, it was possible to produce a bath material that could stably generate heat at 80°C or higher.

<Test Example 3> Maintenance work for bath materials For bath materials subjected to exothermic treatment using the method (1-4), maintenance was performed on bath materials whose temperature did not rise above 60°C. That is, 2 kg of 30 kg of bath material was discarded, 1 kg of cypress sawdust, 1 kg of rice bran, 9 ml of the enzyme solution (microorganism-containing liquid) prepared from (1-1) and 18 ml of water were added, and fermentation treatment was performed. . The room temperature during fermentation was 15°C, and the relative humidity was 30%.
After fermentation, the obtained bath material had a maximum temperature of 80° C. and was able to maintain the maximum temperature for 12 hours or more.

From the above results, it was shown that the bath material manufactured using the manufacturing method of the present invention can be used by generating heat again by replacing some of the raw materials with new raw materials and performing fermentation treatment. In this way, according to the manufacturing method of the present invention, the bath material can be used multiple times, rather than being used as a disposable bath material.

The method for manufacturing bath materials of the present invention can be used to manufacture bath materials used in enzyme baths and the like.

Claims (16)

Cypress sawdust, rice bran, wheat flour, and a microorganism-containing liquid are put into a container with an opening as raw materials, and after the opening is closed, the container is shaken to mix air into the raw materials. A method for manufacturing a bath material, comprising a mixing step of mixing and a fermentation step of fermenting the obtained mixture. The manufacturing method according to claim 1, wherein the container is an air permeable container. The manufacturing method according to claim 1 or 2, wherein in the fermentation step, the mixture is fermented while being stored in the container. The manufacturing method according to any one of claims 1 to 3, wherein in the fermentation step, fermentation is carried out in a state where the mixture is stored in an insulated box with an open top. The fermentation step includes a preliminary fermentation step in which the mixture is left to stand after the mixing step, and a main fermentation step in which the microorganism-containing liquid and/or water is mixed and fermented after the preliminary fermentation step,
The manufacturing method according to any one of claims 1 to 4, wherein the microorganism-containing liquid and/or the water are separately introduced into the mixing step and the main fermentation step. The manufacturing method according to any one of claims 1 to 5, wherein the total mass of the raw materials is 40 kg or less. The manufacturing method according to any one of claims 1 to 6, wherein the microorganism-containing liquid is obtained by culturing microorganisms in an aqueous solution containing microorganisms, rice bran, and brown sugar syrup. The bath material produced by the manufacturing method according to any one of claims 1 to 7 is used as a bath material seed, and the bath material seeds, cypress sawdust, rice bran, wheat flour, and the microorganism-containing liquid are added. A method for manufacturing a bath material, which includes a step of mixing to incorporate air and then fermenting. A step of adding rice bran and the microorganism-containing liquid to the cooled bath material manufactured by the manufacturing method according to any one of claims 1 to 8, mixing to mix with air, and then generating heat again. A method for manufacturing bath materials, including: Into a container with an opening, cooled bath material seeds prepared in advance, cypress sawdust, rice bran, flour, and a microorganism-containing liquid are put as raw materials, and after the opening is closed, air is mixed into the raw materials. a mixing step of mixing the raw materials by shaking the container so as to cause a fermentation step, and a fermentation step of fermenting the resulting mixture;
The method for producing a bath material, wherein the seeds of the bath material are obtained by mixing cypress sawdust, rice bran, wheat flour, and the microorganism-containing liquid so that air is mixed therein, generating fermentation heat, and then cooling the mixture. The manufacturing method according to claim 10, wherein the seeds of the bath material are manufactured by the manufacturing method according to claims 1 to 9. The fermentation step includes a preliminary fermentation step in which the mixture is left to stand after the mixing step, and a main fermentation step in which the microorganism-containing liquid and/or water is mixed and fermented after the preliminary fermentation step,
The manufacturing method according to claim 10 or 11, wherein the microorganism-containing liquid and/or the water are separately introduced into the mixing step and the main fermentation step. The rice bran and the microorganism-containing liquid are added to the cooled bath material manufactured by the manufacturing method according to any one of claims 10 to 12, mixed so that air is mixed therein, and then heated again. A method of manufacturing bath materials, including a process. It includes a reheating process of reheating the bath material obtained by mixing and fermenting cypress sawdust, rice bran, and a liquid containing microorganisms,
In the reheating step, the bath material to be reheated and the microorganism-containing liquid are put into a container having an opening, and the bath material is mixed by shaking the container so that air is mixed into the bath material. A method for producing a bath material, comprising a re-mixing step of mixing the mixture, and a re-fermenting step of fermenting the obtained mixture. The manufacturing method according to claim 14, wherein the bath material manufactured by the method according to any one of claims 1 to 13 is reheated. The manufacturing method according to any one of claims 1 to 15, wherein the bath material is for hands or feet.