Bath preparation and method for producing bath preparation

Abstract

PURPOSE: To provide a bath preparation and a method for producing the same, the bath preparation having extremely enhanced effects and being free from difficulties in materials, availability, or manufacturing process.CONSTITUTION: A bath preparation produced by compressing and molding a composition containing bicarbonate and an organic acid, is characterized in that it contains a warming agent.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a carbon dioxide foaming composition bath agent, which, when dissolved in warm water at about 38°C, for example, slowly foams fine carbon dioxide bubbles inside the bath agent while dissolving, promotes the dissolution of the carbon dioxide component into water or hot water, releases bicarbonate ions at a high concentration, and exhibits blood circulation promotion during bathing and persistence of the action effect after bathing, and a method for producing the bath agent.

Background Art

[0002] Forming a mixture containing a bicarbonate (sodium bicarbonate or potassium bicarbonate) and an organic acid into a foaming composition (solid) by tableting or the like has been applied to products such as detergents, bath agents, bath water cleaners, and pool disinfectants. These products (solids) have the advantage that when put into water, their components react to generate carbon dioxide and dissolve quickly, and at the same time, they give consumers a comfortable feeling of use, so they have the effect of enhancing the commercial value. Particularly in bath agents, the blood circulation promoting effect by percutaneous absorption of the generated carbon dioxide into blood vessels is actively utilized.

[0003] However, when a bath agent is prepared by combining a bicarbonate and an organic acid, when dissolved in hot or cold water, a violent neutralization reaction occurs, large-diameter carbon dioxide bubbles are generated, the carbon dioxide does not dissolve in the hot or cold water, quickly rises, and escapes into the air outside the liquid, resulting in the problem that the bathing effect of carbon dioxide cannot be obtained.

[0004] Therefore, the inventors Shigeharu Kohoshi and Yutaka Ueda previously proposed the invention according to Japanese Patent No. 5588490. That is, [Previously Proposed Invention 1] In a method for producing a bath agent by adding polyethylene glycol in an amount of 1 / 50 to 1 / 5 and an organic acid in an amount of 1 / 20 to 1 / 3 to bicarbonate (sodium hydrogen carbonate or potassium hydrogen carbonate) and compression molding, the hardness of the bath agent [kgf] measured by the hardness measurement method in the diameter direction is 28 or more, the diameter and thickness of the bath agent are each 10 mm or more, and the organic acid contains citric acid. A method for producing a bath agent, characterized by the above. [Prior proposed invention 2] The method for producing a bath agent according to the prior proposed invention 1, characterized in that only the bicarbonate (sodium hydrogen carbonate or potassium hydrogen carbonate) is a granulated product obtained by mixing with polyethylene glycol and granulating. [Prior proposed invention 3] The method for producing a bath agent according to the prior proposed invention 1 or 2, characterized in that only the bicarbonate (sodium hydrogen carbonate or potassium hydrogen carbonate) is a granulated product obtained by mixing with polyethylene glycol, and an organic acid and polyethylene glycol are mixed with this granulated product to form a granulated product. [Prior proposed invention 4] In a bath agent obtained by adding polyethylene glycol in an amount of 1 / 50 to 1 / 5 and an organic acid in an amount of 1 / 20 to 1 / 3 to bicarbonate (sodium hydrogen carbonate or potassium hydrogen carbonate) and compression molding, the hardness of the bath agent [kgf] measured by the hardness measurement method in the diameter direction is 28 or more, the diameter and thickness of the bath agent are each 10 mm or more, and the organic acid contains citric acid. A bath agent, characterized by the above. [Prior proposed invention 5] In a bath agent obtained by adding polyethylene glycol in an amount of 1 / 50 to 1 / 5 to bicarbonate (sodium hydrogen carbonate or potassium hydrogen carbonate) to granulate a granulated product A, and mixing a mixture B of an organic acid and polyethylene glycol in a ratio of 1 / 20 to 1 / 3 and compression molding, the hardness of the bath agent [kgf] measured by the hardness measurement method in the diameter direction is 28 or more, the diameter and thickness of the bath agent are each 10 mm or more, and the organic acid contains citric acid. A bath agent, characterized by the above.

[0005] According to the previous proposed inventions 1, 2, 3, 4, and 5, it has become possible to continuously and efficiently generate micro-sized carbon dioxide bubbles with a diameter below a certain level for a long time, and to provide a carbonated spring bath agent capable of dissolving carbon dioxide dissolved in water at a high concentration as bicarbonate ions.

[0006] In particular, by making the thickness and diameter of the bath agent 10 mm or more respectively, it is possible to slowly generate fine carbon dioxide bubbles with a micro-size below a certain diameter inside the bath agent, and to dissolve the carbon dioxide component dissolved in water into bicarbonate ions to the maximum extent. Moreover, the greater the thickness and diameter, the more remarkable the effect of the previously proposed invention can be.

[0007] Furthermore, by using citric acid as the organic acid, the neutralization reaction can be made to occur in the foaming of micro-bubble sizes and be sustainable, increasing the concentration of the carbon dioxide component dissolved in water. This carbon dioxide component can be dissolved at a high concentration as bicarbonate ions as described above, and the effect of the previously proposed invention can be made remarkable.

[0008] In the previously proposed invention, by causing a neutralization reaction in a bath agent with high hardness, the reaction can be made efficient and maximized, and the reaction can also occur continuously within a certain time, increasing the concentration of carbon dioxide dissolved in water and making the dissolved carbon component into high-concentration bicarbonate ions.

[0009] In the previously proposed invention, when the bath agent is dissolved in water, by generating micro-sized carbon dioxide at an appropriate rate inside the bath agent with high hardness, the dissolution of carbon dioxide in water easily occurs. Although it is weakly acidic in the bath agent where the neutralization reaction occurs, in a large amount of dissolved water, the aqueous solution can be made from neutral to weakly alkaline. Since the dissolved carbon component exists as bicarbonate ions, the bathing effects such as health and beauty can be enhanced more, and a product with high added value can be provided.

[0010] In the previously proposed invention, when making a bath agent by prescribing the amounts of polyethylene glycol and organic acid with respect to bicarbonate, mixing them under conditions within a certain ratio, and performing compression molding, the effect of the previously proposed invention is maximally exerted by creating a bath agent hardness [kgf] of 28 or more by the hardness measurement method in the diameter direction.

[0011] Furthermore, in the previously proposed invention, only the mixture A of bicarbonate is a granulated product coated with polyethylene glycol using a fluidized bed, whereby its effect is greatly exerted. Also, in order to generate micro-sized bubbles inside the bath agent, the effect of the previously proposed invention is greatly exerted by the diameter and thickness of the bath agent each being 10 mm or more.

[0012] Also, as the organic acid, citric acid is used, and since its neutralization reaction occurs more effectively than when other organic acids are used, the effect of the present invention can be more significantly exerted. By prescribing the amount of citric acid with respect to the granulated product A of bicarbonate and the amount of anhydride such as sodium anhydride, and making the bath agent a certain size and having a hardness of a certain level or more, a neutralization reaction occurs in the bath agent, and the dissolved aqueous solution can be made from neutral to weakly alkaline, thus exerting the great characteristics and effects of the previously proposed invention.

Prior Art Documents

Patent Documents

[0013]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0014] The first object of the present invention is to provide a bath agent and a method for producing the same, regarding the previously proposed invention, in which its action and effect are further extremely enhanced. That is, to provide a bath agent and a method for producing the same that can obtain remarkable action and effect. A second object of the present invention is to provide a bath agent and a method for producing the same, which do not involve difficulties in the materials of the bath agent and in obtaining and manufacturing them.

[0015] Other objects of the present invention will be clarified by the following description. In the present invention, "quantity" represents "mass" unless otherwise specified, and "%" represents "% by mass" unless otherwise specified.

Means for Solving the Problems

[0016] The present invention for solving the above problems has the following configuration. [Invention 1] A bath agent obtained by compression molding a component containing a bicarbonate and an organic acid, characterized in that it contains a temperature-sensitive component. [Invention 2] The bath agent according to the above 1, characterized in that it is a bath agent including those for bathing, for head bath, for hand bath, for foot bath, and for shower. [Invention 3] The bath agent according to the above 1 or 2, characterized in that the organic acid is citric acid and the content is from 1 / 20 to 1 / 3 with respect to the bicarbonate. [Invention 4] The bath agent according to the above 3, characterized in that the hardness of the bath agent is 28 kgf or more. [Invention 5] The bath agent according to the above 4, characterized in that the temperature-sensitive component is a component that exhibits a warming / heating effect by mixing with water. [Invention 6] The bath agent according to the above 5, characterized in that the temperature-sensitive component is glycerin, concentrated glycerin, or a trivalent alcohol. [Invention 7] The bath agent according to the above 5, characterized in that the temperature-sensitive component is capsicum extract, capsicum tincture, or vanillyl butyl. [Invention 8] A bath agent characterized in that the temperature-sensitive component is a combined component of the component according to the above 6 and the component according to the above 7.

[0017] In the present invention, the "heat-sensitive component" refers to a component that can obtain a warm or hot feeling, and uses the fact that the component generates a sense of heat when mixed with water, hot water, cold water (hereinafter referred to as "water etc."), and refers to a component that raises the temperature of water etc.

[0018] Examples of the heat-sensitive component preferably used in the present invention include extracts of capsicum fruits, capsicum tincture, vanillyl butyl, etc. (hereinafter referred to as the first heat-sensitive component). Examples of the heat-sensitive component particularly preferably used in the present invention also include glycerin, concentrated glycerin, trivalent alcohols, etc. (hereinafter referred to as the second heat-sensitive component). The above heat-sensitive components may be used in combination of two or more. For example, only two or more of the first heat-sensitive components may be used in combination, only two or more of the second heat-sensitive components may be used in combination, and at least one of the first heat-sensitive component and the second heat-sensitive component may be used in combination, or one of them may be used alone and the other may be used in combination of two or more, and any other combination of two or more may be used.

[0019] There is no particular limitation on the content of the heat-sensitive component used in the present invention in the bath agent, but it is 10% by mass to 50% by mass, preferably 7% by mass to 40% by mass, more preferably 5% by mass to 30% by mass in the bath agent. These exhibit the effect of imparting a warm feeling. In addition, the moisturizing effect due to the increase in the amount of horny layer moisture can also be obtained together with the effect of imparting a warm feeling.

[0020] The present inventor focused on the above-mentioned effects and continued research, and as a result, reached the completion of the present invention. As a result, remarkable effects far exceeding the assumed upper limit of the present inventor were observed.

Embodiments for Carrying Out the Invention

[0021] Hereinafter, the present invention will be described in detail.

[0022] The present invention is a bath agent completed by using a heat component that is not difficult to obtain. When taking a bath, and also when using foot baths, hand baths, face baths, etc. and when using a shower, the bath agent can provide an effect that is quickly exerted.

[0023] That is, in the present invention, the bath agent is a bath agent that is used by dissolving it in water, such as when taking a bath, using foot baths, hand baths, face baths, etc. and using a shower. Moreover, since the dissolved carbonic acid component exists as bicarbonate ions, bath effects such as health and beauty can be enhanced, and a bath agent product with high added value can be provided.

[0024] The above effects of the present invention are maximally exerted by making the hardness of the bath agent [kgf] measured by the hardness measurement method in the diameter direction 28 or more when manufacturing the bath agent according to the present invention.

[0025] Also, as the organic acid, using citric acid enables the neutralization reaction to occur more effectively than when using other organic acids, so the effects of the present invention can be more significantly exerted. By defining the amount of citric acid relative to the granulated product of the bicarbonate and the amount of anhydride such as anhydrous carbon dioxide, and making the bath agent a certain size and having a hardness of a certain level or more, a neutralization reaction occurs in the bath agent, and the dissolved aqueous solution can be made from neutral to weakly alkaline, and other effects of the present invention are exerted.

[0026] Hereinafter, the present invention will be illustrated by giving examples and comparative examples.

[0027] Comparative Example Granulation of Raw Materials [Process without Adding Anhydride] Operation - 3 The following operation was performed using a fluidized bed granulator GPCG - 300CT manufactured by Powrex. 460 kg of sodium hydrogen carbonate was put into the fluidized bed granulator GPCG-300CT manufactured by Powrex installed in a granulation chamber air-conditioned to 23°C and 60% RH. 32 kg of PEG#6000 was added at a powder temperature of 53°C, heating was stopped at 63°C, and then cooling of the powder was started with fluid air set at 20°C. When the powder temperature reached about 35°C, granulation was terminated, the powder was discharged into a sealed container, stored, and granulated product A3 was obtained.

[0028] The following operation was also performed using the fluidized bed granulator GPCG-300CT manufactured by Powrex. 60 kg of anhydrous citric acid and 12 kg of PEG#6000 were charged into the fluidized bed granulator GPCG-300CT manufactured by Powrex installed in a granulation chamber air-conditioned to 23°C and 60% RH, and fluidized granulation of the powder was carried out with fluid air at 63°C. When granulation was completed, the fluid air was set at 15°C and the powder was cooled. When the powder temperature reached about 35°C, granulation was terminated, the powder was discharged into a sealed container, stored, and granulated product B3 was obtained.

[0029] 460 kg of sodium hydrogen carbonate and 32 kg of polyethylene glycol #6000 were added to the improved model of the Lodige mixer VT1200 manufactured by Matsuzaka Giken Co., Ltd., and granulation was carried out at 62°C. After completion, the powder was indirectly cooled with cooling water to obtain granulated product A4.

[0030] Similarly, 60 kg of citric acid and 10 kg of PEG#6000 were added to the improved model of the Lodige mixer VT1200 manufactured by Matsuzaka Giken Co., Ltd., granulation was carried out at 62°C, and after completion, it was cooled to obtain granulated product B4.

[0031] Operation - 4 Granulation of raw materials by adding anhydrous substances The following operation was performed using the fluidized bed granulator GPCG-300CT manufactured by Powrex. While mixing 460 kg of sodium hydrogen carbonate, 35 kg of PEG#6000, and 12 kg of anhydrous sodium carbonate in a fluidized bed granulator GPCG-300CT manufactured by Powrex installed in a granulation chamber air-conditioned to 23°C and 60% RH, granulation was carried out at 51°C, and then the powder was cooled with fluid air set at 20°C. When the powder temperature reached about 35°C, granulation was terminated, the powder was discharged into a sealed container, stored, and granulated product A5 was obtained.

[0032] The following operation was also performed using a fluidized bed granulator GPCG-300CT manufactured by Powrex. While mixing 70 kg of anhydrous citric acid, 12 kg of PEG#6000, and 8 kg of anhydrous sodium carbonate in a fluidized bed granulator GPCG-300CT manufactured by Powrex installed in a granulation chamber air-conditioned to 23°C and 60% RH, granulation was carried out at 62°C. When granulation was completed, the fluid air was set at 15°C and the powder was cooled. When the powder temperature reached about 35°C, granulation was terminated, the powder was discharged into a sealed container, stored, and granulated product B5 was obtained.

[0033] Operation - 5 Granulation of raw materials by adding anhydrous substances 460 kg of sodium hydrogen carbonate, 12 kg of sodium carbonate, and 20 kg of polyethylene glycol #6000 were added to a modified Redige mixer VT1200 manufactured by Matsuzaka Giken Co., Ltd., and granulation was carried out at 60°C. After completion, it was cooled to obtain granulated product A6.

[0034] Similarly, 85 kg of citric acid, 8 kg of polyethylene glycol #6000, and 9 kg of anhydrous sodium carbonate were mixed in a modified Redige mixer VT1200 manufactured by Matsuzaka Giken Co., Ltd., and granulation was carried out at 53°C. After completion, it was cooled to obtain granulated product B6.

[0035] Operation - 6 Preparation of a bath agent for comparison Comparative sample 1 540 kg of granulated product A1 and 320 kg of granulated product B1 were charged with 6 kg of polyethylene glycol #6000 and 1.5 kg of magnesium stearate. After mixing, a weight of 1 t was applied using an oil press type (manual bath agent manufacturing machine) manufactured by Applied Power Industries [Applied Power Japan Co., Ltd.] (former company name: Toyo Hydraulic Machinery Co., Ltd.: model: SPLF - SPF - 393) to produce a bath agent J01 with a diameter of 8 mm and a thickness of 8 mm.

[0036] Comparative sample 2 540 kg of granulated product A2 and 320 kg of granulated product B2 were charged with 6 kg of polyethylene glycol #6000 and 1.5 kg of magnesium stearate. After mixing, a weight of 1 t was applied using an oil press type (manual bath agent manufacturing machine) manufactured by Applied Power Industries [Applied Power Japan Co., Ltd.] (former company name: Toyo Hydraulic Machinery Co., Ltd.: model: SPLF - SPF - 393) to produce a bath agent J02 with a diameter of 7 mm and a thickness of 8 mm.

[0037] Comparative sample 3 540 kg of granulated product A1 was charged with 320 kg of granulated product B2, 6 kg of polyethylene glycol #6000, and 1.5 kg of magnesium stearate. After mixing, a weight of 2 t was applied using an oil press type (manual bath agent manufacturing machine) manufactured by Applied Power Industries [Applied Power Japan Co., Ltd.] (former company name: Toyo Hydraulic Machinery Co., Ltd.: model: SPLF - SPF - 393) to produce a bath agent J03 with a diameter of 7 mm and a thickness of 7 mm.

[0038] Comparative sample 4 540 kg of granulated product A2 was charged with 320 kg of granulated product B1, 6 kg of polyethylene glycol #6000, and 1.5 kg of magnesium stearate. After mixing, a weight of 2 t was applied using an oil press type (manual bath agent manufacturing machine) manufactured by Applied Power Industries [Applied Power Japan Co., Ltd.] (former company name: Toyo Hydraulic Machinery Co., Ltd.: model: SPLF - SPF - 393) to produce a bath agent J04 with a diameter of 8 mm and a thickness of 8 mm.

[0039] Comparative sample 5 To 540 kg of granulated product A1, 80 kg of citric acid, 16 kg of polyethylene glycol #6000, and 1.5 kg of magnesium stearate were added. After mixing, a bath agent J05 with a diameter of 5 mm and a thickness of 5 mm was prepared using an oil press type (manual bath agent manufacturing machine) manufactured by Applied Power Industry [Applied Power Japan Co., Ltd.] (former company name: Toyo Hydraulic Machinery Co., Ltd.: model: SPLF-SPF-393).

[0040] Comparative sample 6 To 540 kg of granulated product A2, 80 kg of citric acid, 16 kg of polyethylene glycol #6000, and 1.5 kg of magnesium stearate were added. After mixing, a weight of 1 t was applied, and a bath agent J06 with a diameter of 8 mm and a thickness of 8 mm was prepared using an oil press type (manual bath agent manufacturing machine) manufactured by Applied Power Industry [Applied Power Japan Co., Ltd.] (former company name: Toyo Hydraulic Machinery Co., Ltd.: model: SPLF-SPF-393).

[0041] Operation - 7 Granulation of raw materials (process of adding anhydrous substances) Comparative sample 7 To 500 kg of granulated product A3, 60 kg of citric acid, 16 kg of polyethylene glycol #6000, 20 kg of anhydrous sodium carbonate, and 1.5 kg of magnesium stearate were added. After stirring and mixing, a weight of 8 t was applied, and a bath agent J07 with a diameter of 20 mm and a thickness of 15 mm was prepared using an oil press type (manual bath agent manufacturing machine) manufactured by Applied Power Industry [Applied Power Japan Co., Ltd.] (former company name: Toyo Hydraulic Machinery Co., Ltd.: model: SPLF-SPF-393).

[0042] Comparative sample 8 500 kg of granulated product A4 was charged with 60 kg of citric acid, 35 kg of anhydrous sodium carbonate, 8 kg of polyethylene glycol #6000, and 1.5 kg of magnesium stearate, and stirred at 115 rpm. After mixing, an oil press type (manual bath agent manufacturing machine) manufactured by Applied Power Industries [Applied Power Japan Co., Ltd.] (former company name: Toyo Hydraulic Machine Co., Ltd., model: SPLF-SPF-393) was used to apply a load of 8 t to produce a bath agent J08 with a diameter of 30 mm and a thickness of 15 mm.

[0043] Comparative Sample 9 500 kg of granulated product A5 was charged with 60 kg of citric acid, 10 kg of polyethylene glycol #6000, and 1.5 kg of magnesium stearate, and after mixing, an oil press type (manual bath agent manufacturing machine) manufactured by Applied Power Industries [Applied Power Japan Co., Ltd.] (former company name: Toyo Hydraulic Machine Co., Ltd., model: SPLF-SPF-393) was used to apply a load of 9 t to produce a bath agent J09 with a diameter of 30 mm and a thickness of 15 mm.

[0044] Comparative Sample 10 500 kg of granulated product A3 was charged with 100 kg of citric acid, 8 kg of anhydrous sodium carbonate, 8 kg of polyethylene glycol #6000, and 1.5 kg of magnesium stearate, and after mixing, an oil press type (manual bath agent manufacturing machine) manufactured by Applied Power Industries [Applied Power Japan Co., Ltd.] (former company name: Toyo Hydraulic Machine Co., Ltd., model: SPLF-SPF-393) was used to apply a load of 9 t to produce a bath agent J10 with a diameter of 30 mm and a thickness of 15 mm.

[0045] Comparative Sample 11, Sample 12 In the preparation of the above Sample 4 of the present invention, 12 kg of anhydrous calcium carbonate (bath agent sample J5) and 10 kg of anhydrous magnesium carbonate (bath agent sample J6) were used instead of anhydrous sodium carbonate. After mixing each, an oil press type (manual bath agent manufacturing machine) manufactured by Applied Power Industries [Applied Power Japan Co., Ltd.] (former company name: Toyo Hydraulic Machine Co., Ltd., model: SPLF-SPF-393) was used to apply a load of 9 t to produce bath agents J11 and J12 with a diameter of 30 mm and a thickness of 15 mm.

[0046] Comparative sample 13 To 500 kg of Granule A4, 80 kg of Granule B4, 10 kg of anhydrous sodium carbonate, 6 kg of polyethylene glycol #6000, and 1.5 kg of magnesium stearate were added. After stirring and mixing, a weight of 9 t was applied using an oil press type (manual bath agent manufacturing machine) manufactured by Applied Power Industry [Applied Power Japan Co., Ltd.] (former company name: Toyo Hydraulic Machinery Co., Ltd.: model: SPLF-SPF-393) to produce a bath agent J13 with a diameter of 30 mm and a thickness of 15 mm.

[0047] Comparative sample 14 To 500 kg of Granule A4, 80 kg of Granule B5, 6 kg of polyethylene glycol #6000, and 1.5 kg of magnesium stearate were added. After mixing, a weight of 9 t was applied using an oil press type (manual bath agent manufacturing machine) manufactured by Applied Power Industry [Applied Power Japan Co., Ltd.] (former company name: Toyo Hydraulic Machinery Co., Ltd.: model: SPLF-SPF-393) to produce a bath agent J14 with a diameter of 30 mm and a thickness of 15 mm.

[0048] Comparative sample 15 To 500 kg of Granule A4, 80 kg of B6, 7 kg of polyethylene glycol #6000, and 1.5 kg of magnesium stearate were added. After mixing, a weight of 9 t was applied using an oil press type (manual bath agent manufacturing machine) manufactured by Applied Power Industry [Applied Power Japan Co., Ltd.] (former company name: Toyo Hydraulic Machinery Co., Ltd.: model: SPLF-SPF-393) to produce a bath agent J15 with a diameter of 30 mm and a thickness of 15 mm.

[0049] Comparative sample 16 500 kg of granulated product A4, 60 kg of citric acid, 12 kg of polyethylene glycol #6000, and 1.5 kg of magnesium stearate were charged. After mixing, a 9 t weight was applied using an oil press type (manual bath agent manufacturing machine) manufactured by Applied Power Industry [Applied Power Japan Co., Ltd.] (former company name: Toyo Hydraulic Machine Co., Ltd.: model: SPLF-SPF-393) to produce bath agent J16 with a diameter of 30 mm and a thickness of 15 mm.

[0050] Comparative sample 17 500 kg of granulated product A4, 60 kg of citric acid, 9 kg of potassium carbonate anhydrous, 10 kg of polyethylene glycol #6000, and 1.5 kg of magnesium stearate were charged. After mixing, a 9 t weight was applied using an oil press type (manual bath agent manufacturing machine) manufactured by Applied Power Industry [Applied Power Japan Co., Ltd.] (former company name: Toyo Hydraulic Machine Co., Ltd.: model: SPLF-SPF-393) to produce bath agent J17 with a diameter of 30 mm and a thickness of 15 mm.

[0051] Operation - 8 Evaluation work of bath agents of Comparative Examples - 1 to 17 (1) Measurement of hardness - 1 Measurement of Vickers hardness Using a micro Vickers hardness tester Mitutoyo HM - 221, the surface average Vickers hardness [HV] of the bath agent, which is the average value of 4 measurements, was measured. Vickers hardness Average value [HV] (2) Measurement of hardness - 2 Destructive strength in the diameter direction Using a digital bath agent hardness tester New Speed Checker TS75 NL manufactured by Okada Seiko Co., Ltd., the bath agent hardness [kgf] was measured by the hardness measurement method in the diameter direction and shown in Table 1 below (hardness kgf). The list of the prepared comparative samples is as shown in Table 1 below. JPEG2025113795000001.jpg6754

[0052] Examples of the present invention In the examples of Comparative Example 14, an experiment was conducted in which only the addition of a temperature - sensitive component was made different for each comparative sample. As an example of a temperature-sensitive component, examples were conducted in which only the use of glycerin and the use of capsicum extract were different. As a result, in this example, the temperature-sensitive effect on the bather was particularly remarkable. Even with the same bathing time (about 10 minutes), in the comparative example, only a small amount of sweat was produced, but in this example, a so-called large amount of sweating was obtained. In addition, in this example, in the example using capsicum tincture, although a tingling sensation occurred on the skin, in the example using glycerin, such a feeling did not occur at all, and a refreshing feeling was felt pleasantly.

Claims

1. A bath agent obtained by compression molding a component containing a bicarbonate and an organic acid, characterized in that it contains a temperature-sensitive component.

2. The bath agent according to Claim 1, characterized in that it is a bath agent including those for bathing, for head bath, for hand bath, for foot bath, and for shower.

3. The bath agent according to Claim 1 or 2, characterized in that the organic acid is citric acid and the content is 1 / 20 to 1 / 3 with respect to the bicarbonate.

4. The bath agent according to Claim 3, characterized in that the hardness of the bath agent is 28 kgf or more.

5. The bath agent according to Claim 4, characterized in that the temperature-sensitive component is a component that exhibits a warming / heating effect by mixing with moisture.

6. The bath agent according to Claim 5, characterized in that the temperature-sensitive component is glycerin, concentrated glycerin, or a trivalent alcohol.

7. The bath agent according to Claim 5, characterized in that the temperature-sensitive component is capsicum extract, capsicum tincture, or vanillyl butyl.

8. The bath agent, characterized in that the temperature-sensitive component is a combined component of the component according to Claim 6 and the component according to Claim 7.

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