JP7281257B2 - hydrogen carbonate bath - Google Patents

Description

TECHNICAL FIELD The present invention relates to a hydrogen carbonated bath using water in which hydrogen is dissolved in addition to carbon dioxide, and more particularly to a hydrogen carbonated bath that can contribute to health maintenance.

A carbonic acid bath is known as a bath that promotes blood circulation and the like that contributes to health maintenance. Carbonated baths promote blood circulation and reduce vascular resistance through percutaneous absorption of carbon dioxide through the dilation of peripheral blood vessels, so it is said to have effects such as heat retention, recovery from fatigue, and lower blood pressure.

Patent Literature 1 below discloses an artificial carbonated spring having an anti-aging effect in addition to the above effects of a carbonated bath. This artificial carbonated spring has an oxidation-reduction potential of a reduction system by dissolving hydrogen in addition to carbon dioxide, and has an antioxidant effect.

However, the hydrogen in this artificial carbonated spring is for tilting the oxidation-reduction potential to the reduction system, and the dissolved hydrogen concentration is not high, and the hydrogen is not effectively absorbed.

Japanese Patent Application Laid-Open No. 2009-202113

A main object of the present invention is to make it possible to effectively absorb hydrogen.

As a means for that purpose, hydrogen carbonated water having a dissolved hydrogen concentration of 0.2 ppm or more and 1.2 ppm or less and a carbon dioxide concentration of 250 ppm or more and 3000 ppm or less is continuously supplied to the bathtub. It's a bath.

With this hydrogen carbonate bath, it is possible to bathe in hydrogen carbonate water with a high dissolved hydrogen concentration even though it is carbonated water, and hydrogen can be percutaneously absorbed in accordance with the blood circulation promoting action of carbon dioxide. Hydrogen absorbed from the skin acts on each tissue of the human body through skin blood vessels and lymph vessels.

According to this invention, a high dissolved concentration of hydrogen can be applied as a carbonated bath, and by bathing, effective hydrogen absorption can be realized with less burden than in the case of oral ingestion.

Schematic configuration diagram of a hydrogen carbonate bath.

One mode for carrying out the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic configuration diagram of a hydrogen carbonate bath 11. As shown in FIG. In the hydrogen carbonate bath 11, heated hydrogen carbonated water 12 at an appropriate temperature is continuously supplied to the bathtub 13, and the dissolved hydrogen concentration of the hydrogen carbonated water 12 is 0.2 ppm or more and 1.2 ppm or less. and the dissolved carbon dioxide concentration is 250 ppm or more and 3000 ppm or less.

Specifically, the hydrogen carbonated bath 11 has a bathroom 14 in which a bathtub 13 is installed, and a bathtub water producing device 15 provided outside the bathroom 14 for producing the hydrogen carbonated water 12 .

The bathroom 14 can be ventilated by a ventilation fan (not shown) and has a window (not shown), but is basically configured to form a closed space. In addition to the bathtub 13, the bathroom 14 includes a water supply section 18 to which a hot water supply line 16 and a water supply line 17 are connected, a washing area 19, and other necessary equipment.

The bathtub water production device 15 circulates the bathtub water 13a stored in the bathtub 13, dissolves hydrogen and carbon dioxide in the concentration range described above during the circulation, and supplies the dissolved hydrogen and carbon dioxide to the bathtub 13. 21 , a gas cylinder 22 and a dissolving device 23 .

The gas cylinder 22 stores a mixed gas in which hydrogen and carbon dioxide are mixed at an appropriate ratio. The opening/closing valve 22a of the gas cylinder 22 has a structure for ejecting the mixed gas at an appropriate flow rate. As for the gas supply method, in addition to using the gas cylinder 22 storing the mixed gas of hydrogen and carbon dioxide, a mixed gas may be supplied by mixing the hydrogen and carbon dioxide supplied from the respective gas cylinders. may

The dissolving device 23 is composed of a dissolving tank 24 and a fine bubble generator 25 . As the fine bubble generator 25, devices such as pressure dissolution method, bubble shear method, or porous method can be used.

The circulation pump 21 is connected to a suction port 26 formed in the bathtub 13 and provided in a lead-out passage 27 for leading out the bathtub water 13a. The fine bubble generator 25 has a gas supply section 25a that supplies gas to the bath water 13a to be passed through, and a bubble generation section 25b that generates fine bubbles. ing. The gas cylinder 22 is connected to the gas supply portion 25a, and an introduction path 29 is connected to guide the bathtub water 13a from the dissolving tank 24 to an outlet 28 formed in the bathtub 13. As shown in FIG.

In the hydrogen carbonated bath 11 having such a configuration, hydrogen carbonated water is generated as the bathtub water 13a in the following manner.

First, in a state where hot water is supplied from the water supply unit 18 into the bathtub 13 and the hot water is stored, the bathtub water producing device 15 is operated. That is, the circulation pump 21 is driven, and the mixed gas is supplied from the gas cylinder 22 at an appropriate flow rate in consideration of the capacity (flow rate) of the circulation pump 21 and the target dissolved concentration.

Then, the bathtub water 13 a sucked from the suction port 26 by the circulation pump 21 is mixed with the mixed gas when passing through the fine bubble generator 25 . The fine bubbles of hydrogen and carbon dioxide generated in the passing bath water 13a do not disappear immediately but spread out and dissolve in hot water or bath water 13a. As a result, the hydrogen carbonated water 12 having fine bubbles of hydrogen and carbon dioxide is formed in the dissolving tank 24 , and is introduced into the bathtub 13 from the discharge port 28 through the introduction passage 29 . By repeating such operations, the hot water in the bathtub 13 gradually becomes the hydrogen carbonated water 12 having the desired dissolved hydrogen concentration and dissolved carbon dioxide concentration.

Since the hydrogen carbonated water 12 is continuously supplied to the bathtub 13, the human body in the bathtub 13 is always in contact with hydrogen and carbon dioxide gas of desired concentrations.

In order to continuously supply the hydrogen carbonated water 12 to the bathtub 13, a means for circulating and supplying hot water using the bathtub water producing device 15 provided outside the bathroom 14 as described above is taken. Alternatively, the hydrogen carbonated water 12 separately generated by another means may be supplied to the bathtub 13, or another method may be used.

A test was conducted to confirm what effect bathing in the hydrogen carbonate bath 11 having the structure described above would have on the human body. Next, the test and results will be described.

The test method consisted of bathing in a hydrogen carbonated bath 11 using hydrogen carbonated water 12 and in a carbonated bath using carbonated water as a comparative example for a predetermined period of time. The change was seen with the average value of 10 subjects. For comparative evaluation, we used the crossover method, which is effective in investigating factors with large individual differences.

Specifically, three months was set as the test period, and five adult men each, a total of 10 people, were roughly evenly divided into two groups. 5 days x 4 weeks), with an interval of 1 month. That is, one group first took a bath in a hydrogen carbonated bath for one month (20 times), and then took a bath in a carbonated bath for one month (20 times) at intervals of one month. The other group first took a bath in a carbonated bath for one month (20 times), and then, at intervals of one month, bathed in a hydrogen carbonated bath for one month (20 times).

The 10 subjects had an average height of 172 cm, a weight of approximately 73 kg, and a chest circumference of approximately 87 cm, showing a standard physique. All subjects were in good health.

The mixing ratio of hydrogen and carbon dioxide when generating the hydrogen carbonated water 12 in the hydrogen carbonated bath 11, ie, the composition ratio of the mixed gas in the gas cylinder 22, was 8% hydrogen concentration and 92% carbon dioxide concentration. Moreover, the flow rate of the circulation pump 21 was 8 L/min, and the flow rate at the time of jetting the mixed gas was 500 cc/min. The bathtub 13 and bathroom 14 were common for one person.

The carbonated bath is the same as the hydrogen carbonated bath 11 except that the same bath as the hydrogen carbonated bath 11 is used and a 100% carbon dioxide gas cylinder is used in place of the gas cylinder 22 described above.

The maximum dissolved hydrogen concentration of the bath water 13a composed of the hydrogen carbonated water 12 in the hydrogen carbonated bath 11 manufactured under the above conditions was 0.5 ppm. Specifically, it was 0.2 ppm after 5 minutes, 0.3 ppm after 10 minutes, 0.35 ppm after 15 minutes, 0.4 ppm after 20 minutes, and 0.5 ppm after 25 minutes. The dissolved carbon dioxide concentration was 900 ppm. Bathing was performed after 25 minutes or more from the start of operation.

Further, when the gas concentration in the bathroom 14 was measured while the bathtub water production device 15 was in operation with the bathtub 13 open, the carbon dioxide concentration was 0.1 to 0.2%, and the hydrogen gas concentration was 0. less than .1% and the oxygen gas concentration was 21%. At a certain time during bathing, the concentration of hydrogen gas in the bathroom 14 was changed at three locations (near the surface of the bathtub water 13a, near the ceiling of the bathroom 14, and in the bathroom space between the height, width, and depth of the bathroom 14). When measured at the center (above the water surface and below the ceiling in height), it was less than 25 ppm at any measurement point. A highly sensitive combustible gas detector "XP-3160" manufactured by New Cosmos Electric Co., Ltd. was used to measure the hydrogen gas concentration.

Bathing consisted of staying in the bathtub 13 for 10 minutes or more and staying in the bathroom 14 for 20 minutes or more and 30 minutes or less.

The end-expiratory hydrogen concentration is the hydrogen concentration in the exhaled breath after the last exhalation, and reflects the gas concentration in the blood. In the test, end-expiratory breath was collected in an aluminum bag and then measured. For the measurement, a portable gas analyzer "XG-100H" manufactured by New Cosmos Electric Co., Ltd. was used.

As a result of the test, the results shown in Table 1 were obtained for end-expiratory hydrogen concentration, and it can be seen that hydrogen is taken into the blood by bathing in the hydrogen carbonate bath 11 .

表１では、水素炭酸風呂入浴と炭酸風呂入浴のそれぞれについて、２０回のうちの１回目の入浴（１回目入浴）と、１か月の試験期間の最終回である２０回目の入浴（２０回目入浴）について、入浴前と入浴後の値を示した。単位はｐｐｍである。

In Table 1, for each of the hydrogen carbonate bath bathing and the carbonated bath bathing, the first bathing out of 20 (1st bathing) and the 20th bathing (20th bathing), which is the final bathing of the one-month test period, are shown. bathing), the values before and after bathing are shown. The unit is ppm.

As can be seen from Table 1, the end-tidal hydrogen concentration was 6.0 in the hydrogen carbonate bath and 7.7 in the carbonate bath before the first bathing of the hydrogen carbonate bath and the carbonate bath. In bathing, it increased to 29.6 in the hydrogen carbonate bath and decreased to 3.7 in the carbonated bath. While the hydrogen concentration increased by 23.6 in the hydrogen carbonated bath, it decreased by 4.1 in the carbonated bath. From this, it can be seen that hydrogen is effectively taken into the blood by taking a hydrogen carbonate bath.

In the 20th bath, the end-tidal hydrogen concentration before bathing in the hydrogen carbonate bath increased to 11.4, and the value after bathing also increased to 46.0, the difference between before and after bathing being 34.6. It can be seen that the difference in hydrogen gas concentration before and after bathing is greater than that during bathing. On the other hand, in the carbonated bath, even after the 20th bath, the hydrogen concentration after bathing decreased from 12.5 before bathing to 9.7. From these facts, it is considered that the amount of hydrogen taken into the blood increases by continuing to bathe in the hydrogen carbonate bath.

The results of blood biochemical tests are shown in Table 2.

検査項目はＴ－Ｂｉｌ、Ｔｏｔａｌ Ｐｒｏｔｅｉｎ 、Ａ／Ｇ、Ａｌｂｕｍｉｎ、ＡＳＴ、ＡＬＴ、ＬＤ、ＡＬＰ、γ－ＧＴ、ＣＨＥ、ＮＨ３であり、Ｔｏｔａｌ Ｐｒｏｔｅｉｎ以下のすべての検査項目においては水素炭酸風呂入浴と炭酸風呂入浴において顕著な差は見られなかった。

Test items are T-Bil, Total Protein, A/G, Albumin, AST, ALT, LD, ALP, γ-GT, CHE, NH3. No significant difference was observed in bathing.

However, in T-Bil, the first bath in the hydrogen carbonate bath was 1.05, while the 20th bath was 0.89, which is a decrease in the numerical value. It was 0.93 for the first bathing and 1.05 for the 20th bathing. Statistical verification of this numerical value change confirmed that T-Bil decreased significantly due to continued bathing in the hydrogen carbonate bath, suggesting an improvement in liver function.

Table 3 shows the blood pressure, pulse rate, _SpO2 , and sublingual temperature of the subject, which were also measured. In Table 3, "before start" is before the first bathing, and "at the end" is after the 20th bathing.

表３に示したように、血圧、脈拍、経皮的動脈血酸素飽和度（ＳｐＯ_２）、舌下温において、水素炭酸風呂への入浴と炭酸風呂への入浴による違いはなく、同等の結果が見られた。

As shown in Table 3, there was no difference in blood pressure, pulse rate, percutaneous arterial oxygen saturation (SpO ₂ ), and sublingual temperature between bathing in a hydrogen carbonated bath and bathing in a carbonated bath, and similar results were obtained. seen.

From the blood biochemical test results shown in Table 2 and the pulse and other results shown in Table 3, bathing in a hydrogen carbonated bath is almost equivalent to a carbonated bath except for the T-Bil value, and there is no adverse effect on the human body. unacceptable.

As described above, when bathing in a bath having a bathtub into which hydrogen carbonated water is continuously introduced, at least the hydrogen carbonated water has a maximum dissolved hydrogen concentration of 0.5 ppm and a dissolved carbon dioxide concentration of 250 ppm or more and less than 1000 ppm. When bathing in the bathtub for 10 minutes or more in one bath, hydrogen can be effectively taken into the blood as described above, and as a result, the T-Bil value is improved. It turns out that

Although hydrogen carbonated water is carbonated water, it has a high concentration of dissolved hydrogen, so when it comes into contact with the skin of the human body by bathing, the carbon dioxide promotes blood circulation, and at the same time, hydrogen is absorbed through the skin. . It is thought that hydrogen absorbed from the skin acts on each tissue of the human body through skin blood vessels and lymphatic vessels, and as a result, the above-mentioned results suggestive of improvement in liver function were obtained.

In this way, the bathing method using the hydrogen carbonate bath can realize effective hydrogen absorption and hydrogen uptake by the human body in cooperation with carbon dioxide. Since it is naturally absorbed by bathing, there is no burden of having to drink more than a certain amount as in the case of oral intake.

The dissolved hydrogen concentration of hydrogen carbonated water can be appropriately set from 0.2 ppm to 1.2 ppm, but is 0.35 ppm or more, or 0.4 ppm or more, preferably the above-mentioned value of around 0.5 ppm, or 0.5 ppm is the maximum. value.

The concentration of dissolved carbon dioxide in hydrogen carbonated water can be set appropriately from 250 ppm to 3000 ppm according to taste, but since it mainly absorbs hydrogen, it is considered high concentration if it is 250 ppm or more, which is necessary for carbonated springs. The value may be less than 1000 ppm, and it is preferable to set the value around 900 ppm or 900 ppm as the maximum value.

REFERENCE SIGNS LIST 11: Hydrogen carbonated bath 12: Hydrogen carbonated water 13: Bathtub 14: Bathroom 15: Bathtub water production device 22: Gas cylinder 23: Dissolving device

Claims (4)

A hydrogen carbonated bath having a bathtub to which hydrogen carbonated water is supplied,
A bathtub water manufacturing device is used that sucks the bathtub water in the bathtub, dissolves hydrogen and carbon dioxide at the same time, and returns it to the bathtub,
The bathtub water production device comprises a dissolution tank for introducing and discharging bathtub water, and a fine bubble generator for supplying fine bubbles to the bathtub water in the dissolution tank ,
An introduction path connected to the dissolution tank is connected to the bathtub to introduce only bathtub water into the dissolution tank, and circulate the bathtub water between the dissolution tank and the bathtub,
A hydrogen carbonated bath in which hydrogen carbonated water having a dissolved hydrogen concentration of 0.2 ppm or more and 1.2 ppm or less and a carbon dioxide concentration of 250 ppm or more and 3000 ppm or less is continuously supplied to the bathtub. The hydrogen carbonate bath according to claim 1, wherein the end of the bathtub water producing device of the introduction path is connected to the gas supply portion of the fine bubble generator. 3. The hydrogen carbonate bath according to claim 1, wherein said bath water producing device is provided outside a bathroom having said bath. a maximum dissolved hydrogen concentration of the bath water in the bath in an open state during operation of the bath water production apparatus is 0.5 ppm;
4. The hydrogen carbonate bath according to any one of claims 1 to 3 , wherein the hydrogen gas concentration in the bath is less than 25 ppm.

Images