WO2013031895A1

WO2013031895A1 - Hydrogen water filled product, manufacturing method therefor, and manufacturing device therefor

Info

Publication number: WO2013031895A1
Application number: PCT/JP2012/072013
Authority: WO
Inventors: 原田　宏; 竜也鈴木
Original assignee: 独立行政法人国立高等専門学校機構; 株式会社日幸製作所
Priority date: 2011-08-31
Filing date: 2012-08-30
Publication date: 2013-03-07
Also published as: CN103781720A; CN103781720B; JPWO2013031895A1; TW201313579A; TWI518015B; JP5388155B2; JP2014024606A

Abstract

[Problem] To develop a novel product filled with hydrogen water, made in such a way that the release of hydrogen from hydrogen water loaded and tightly sealed into a drum is extremely minimal, and a manufacturing technique therefor. [Solution] The present invention relates to a hydrogen water filled product in which hydrogen water in which hydrogen is dissolved is loaded into a container and is supplied in a tightly sealed state during the time period from circulation until consumption, and is characterised in that this container is a metal can, and in a tightly sealed state in which the can lid is sealed to the can barrel, for example by fully filling the can with the hydrogen water, the container is made in such a way that the loaded hydrogen water does not come into contact with gases other than hydrogen.

Description

Hydrogen water filled product, its manufacturing method and its manufacturing equipment

The present invention relates to a product in which a can container is filled with hydrogen water and a method for producing the same, and in particular, hydrogen water after hermetically filling is prevented from coming into contact with a gas other than hydrogen, thereby unopened state. The present invention relates to a novel filled product and a manufacturing method thereof in which the release of hydrogen from hydrogen water is extremely reduced.

With the recognition that it is effective for maintaining health, the manufacture and sale of hydrogen water has been made and is attracting attention. This is because hydrogen water is involved in the removal of so-called “oxidative stress”, which is related to the occurrence and deterioration of various diseases. Active oxygen that is always generated in the body plays a role as part of the body's immune function, but if it occurs more than necessary (this condition is called "oxidative stress") It is said that excess active oxygen needs to be removed on a daily basis because it acts as a cause of injury. In addition, even though “active oxygen” is simply referred to, it is said that there is no mechanism for uniformly removing all molecular species of active oxygen because of its various molecular forms.
According to recent research results on the mechanism of removal of active oxygen, it was suggested that molecular hydrogen is involved in the removal of some of the “active oxygen” molecular species. As a result, the number of people who practice continuous drinking of hydrogen water has increased. However, the function and effect of molecular hydrogen in the living body has not been elucidated in detail, and since it is in the stage of earnest research at various research institutions, the mechanism is not described here.

As interest in such hydrogen water increases, various techniques relating to hydrogen water production have been developed and improved. Specifically, the following methods can be exemplified.
(1) Electrolysis method (2) Pressure dissolution method (3) Gas-liquid mixing nozzle method (4) Micro / nano bubble method (5) Gas-liquid separation hollow fiber membrane method (For example, dissolved hydrogen concentration is 1.6 ppm at 25 ° C), or high-concentration hydrogen water close to saturation concentration can be produced, and it is sold as a domestic / industrial hydrogen water server or hydrogen water production equipment. ing.

Although it is a so-called “water server” that has become widespread in ordinary households, with the development of hydrogen water production technology, domestic “hydrogen water server” for beverage use is also manufactured and sold by several companies. Has begun to spread. In the case of a home-use “hydrogen water server”, “high-concentration hydrogen water” supplied from the server is presumed to be consumed immediately without taking time. There are few points.
On the other hand, as a method of easily drinking hydrogen water, it is possible to use “hydrogen water sealed in a container” (hereinafter referred to as “hydrogen water filled in a container”), Several types are commercially available for this purpose. If you categorize the form of "hydrogen water in a container" that is commercially available here,
(1) Filling with PET bottles (2) Filling with aluminum pouches (3) Filling with aluminum bottles can be broadly classified into three types. However, any form of hydrogen water has been pointed out with respect to its preservability.

In other words, the dissolved hydrogen concentration of hydrogen water at the time of purchase, that is, “hydrogen water filled in the container” is often extremely low or does not contain hydrogen. Many written information such as “the concentration of water is low” or “no hydrogen” is uploaded on the Internet, and the problem regarding the storage stability of hydrogen is becoming obvious.
In addition, although many prior art documents relating to the method for producing hydrogen water have been disclosed to reflect such actual circumstances, there are very few prior art documents regarding the method for preserving hydrogen water. Yes (see

Patent Documents

1 and 2, for example)
Incidentally, in

Patent Documents

1 and 2 described above, hydrogen water is generated and then immediately stored frozen to suppress the release of hydrogen. However, in such a method, it takes a long time to melt the hydrogen water that has been frozen and stored (for example, 12 hours at room temperature), and there is a great drawback that it cannot be drunk immediately when it is desired to drink. In addition, since freezing is required at the time of storage, not only the manufacturing cost is high, but also refrigeration equipment is required for distribution and storage / display in each store, and inconveniences in practical use can be completely eliminated in this respect. There was no problem.

JP 2009-208067 A JP 2009-208063 A

The present invention has been made in view of such a background. First, the present invention aims to develop a method for storing hydrogen water in a room temperature atmosphere without freezing. Specifically, it is assumed that the generated hydrogen water is filled in a can container, and in a sealed filling state where a can container filled with hydrogen water is covered, the hydrogen water does not come into contact with a gas other than hydrogen gas. By doing so, we have attempted to develop a new hydrogen water filling product and its manufacturing method that extremely suppress the release of hydrogen from the hydrogen water.

That is, the product filled with hydrogen water according to claim 1 is:
Hydrogen water containing hydrogen gas is filled in a container, and is a product filled with hydrogen water that is supplied in a sealed state between distribution and consumption,
The container is a metal can body;
This metal can body is characterized in that hydrogen water is not in contact with a gas other than hydrogen in a sealed state where the can lid portion is sealed to the can body portion.

Further, the hydrogen water filling product according to claim 2 is in addition to the requirement according to claim 1,
In preventing the hydrogen water filled in the metal can from coming into contact with a gas other than hydrogen, it is realized by filling the can with hydrogen water.

In addition to the requirements described in

claim

1 or 2, the hydrogen water filling product according to claim 3 is dissolved in 1 ppm or more even when half a year has passed after the hydrogen water filled in the can is sealed. It is characterized by maintaining the hydrogen concentration.

Moreover, the manufacturing method of the filling product of hydrogen water of Claim 4 is as follows.
Hydrogen water in which hydrogen is dissolved is produced by mixing raw water and hydrogen gas, and the hydrogen water is filled into a metal can container, and then the can body part of the can container is covered with a can lid part. In a method of manufacturing a hydrogen water filled product by sealing a lid to a can body,
The hydrogen water to be filled in the can body is characterized by being hermetically filled in a sealed state in which the can lid portion is sealed to the can body portion and in a state where it does not come into contact with a gas other than hydrogen.

Moreover, the manufacturing method of the filling product of hydrogen water of Claim 5 adds to the requirements of the said Claim 4,
In preventing hydrogen water filled in the can from coming into contact with a gas other than hydrogen,
A primary overflow in which hydrogen water overflows from the can container in the process of filling hydrogen water into the can container;
Of the secondary overflow that overflows hydrogen water from the can body in the process of attaching the can lid to the can container filled with hydrogen water,
Either one or both overflows are generated, and hydrogen water is filled in a metal can body.

Moreover, in addition to the requirement of the said Claim 4 or 5, the manufacturing method of the filling product of hydrogen water of Claim 6 is as follows.
When filling the can with the hydrogen water, the injection is performed in a submerged state where the discharge port of the water injection nozzle is located below the surface of the hydrogen water already injected into the can container, except when the filling of the hydrogen water is started. This is what makes it a feature.

Moreover, the manufacturing apparatus of the filling product of hydrogen water of Claim 7 is as follows.
A hydrogen water generator for generating hydrogen water in which hydrogen is dissolved by mixing raw water and hydrogen gas;
A hydrogen water filling device for injecting the generated hydrogen water into a metal can container;
A can lid sealing device for covering the can body portion of the can container filled with hydrogen water with a can lid portion and sealing the can lid portion to the can body portion;
In an apparatus for producing a filled product in which hydrogen water is sealed and filled in a metal can,
The hydrogen water filling device is configured to fill hydrogen water until it overflows from the can container when filling the water container with the hydrogen water.
Alternatively, the can lid sealing device is configured such that when the can lid portion is attached to the can body portion, the hydrogen water is configured to overflow from the can container, either or both. Is.

Moreover, in addition to the requirement of the said Claim 7, the manufacturing apparatus of the filling product of hydrogen water of Claim 8 is provided,
The hydrogen water filling device comprises a water injection nozzle for filling hydrogen water into a can container,
The water injection nozzle is set to perform injection in a submerged state in which the discharge port of the water injection nozzle is positioned below the surface of the hydrogen water already injected into the can container, except when charging of the hydrogen water is started. It consists of

The above-described problems can be solved by using the configuration of the invention described in each of the claims.
That is, according to the first, fourth, and seventh aspects of the present invention, the release of hydrogen from the hydrogen water that is hermetically filled before the user uses it (for example, the act of drinking if it is for beverages) is markedly reduced. Therefore, the dissolved hydrogen concentration of the hydrogen water in the distribution process can be maintained at a high level. Moreover, since the product filled with hydrogen water can be stored at room temperature, it does not take time and effort to thaw, and can be drunk immediately when the user wants to drink. In addition, because it is not frozen storage, distribution costs can be reduced, which reduces the equipment burden for the dealer and reduces the cost for storage (for example, storage in a warehouse or a showcase of a store, such as a freezer). Refrigeration equipment is not required). In addition, this point makes it easy to handle filled products in all of manufacturers, distributors, sellers (retailers), users, and the like, and improves convenience, convenience, etc. as a product form.

Further, according to the invention described in claim 2, a concrete method for preventing the charged hydrogen water from coming into contact with a gas other than hydrogen is realized. In other words, as a method of preventing the hydrogen water that has been hermetically filled from coming into contact with a gas other than hydrogen, a method other than full filling (a method of filling hydrogen water to the full volume so as not to form a head space in the can). However, it is conceivable to fill the head space with hydrogen water so that a head space is provided at the top of the can body, and it is also possible to fill this head space with hydrogen gas, but the danger is that hydrogen gas is extremely light and has a wide explosion limit. Therefore, for example, if the gas is changed to hydrogen gas in contrast to the existing method of filling the head space with nitrogen gas, it cannot be realized immediately, and various difficulties are expected in an actual manufacturing site. In this regard, full filling is considered to be more feasible than the method of filling the head space with hydrogen gas.

According to the invention described in claim 3, since the dissolved hydrogen concentration after storage for 6 months is maintained at 1 ppm or more in the product of the present invention, the fundamental technical idea of the present invention, that is, the method of storing the filled product is appropriate. Objectively support (excellence).

According to the invention described in claim 5, in order to cause either or both of the primary overflow when filling with hydrogen water and the secondary overflow when attaching the can lid part, Can be surely filled into a metal can body.

Further, according to the sixth and eighth aspects of the invention, when filling the can with hydrogen water, the water injection nozzle fills in a submerged state except when the filling is started. The situation can be created and a filling method that suppresses the release of hydrogen is obtained. In addition, the conclusion that such submerged filling is preferable is obtained from an experiment (the filling speed is constant) conducted by the present inventor on the difference in the amount of dissolved hydrogen due to the difference in filling position. Incidentally, in this experiment, when the discharge port of the water injection nozzle is set higher than the upper end of the can container (the nozzle discharge port is not submerged), it can be confirmed that the dissolved concentration of hydrogen water is lower than the submerged filling. This was thought to be because dissolved hydrogen in the hydrogen escaped due to air entrainment during filling.

It is the front view and top view which show an example of the manufacturing apparatus (apparatus which manufactures the filling product of hydrogen water) of this invention. It is a general-view perspective view which shows an example of the filling product (filling product of hydrogen water) of this invention, and two types of perspective views (a) and (b) which show the mode of the inside of this product skeleton. It is explanatory drawing which shows the mode (first half) at the time of filling hydrogen water into a can container in steps. It is explanatory drawing which shows a mode that a can lid part is attached to the final stage at the time of filling a can container with hydrogen water, and the can container filled with hydrogen water. It is a graph which shows the time-dependent change of dissolved hydrogen concentration over 6 months about the filling product (other company's product) of hydrogen water already marketed. It is a graph which compares the time-dependent change of each dissolved hydrogen concentration, filling hydrogen water into two containers which changed the area which contacts air. It is a graph which shows the time-dependent change of a dissolved hydrogen concentration in the case where it fills with hydrogen water to the PET bottle and the case where it fills so that head space may be provided. The hydrogen water (invention product) filled in a can (steel can) was stored in a constant temperature bath at 37 ° C assuming summer, and the dissolved hydrogen concentration of hydrogen water was measured every week. It is a graph to show.

DESCRIPTION OF SYMBOLS 1 Manufacturing apparatus of filling product 2 Hydrogen water production | generation apparatus 3 Hydrogen water filling apparatus 4 Can lid sealing apparatus

DESCRIPTION OF SYMBOLS 10 Filled product 10A Can container 11 Can body part 12 Can lid part 13 Standing part 14 Head space

3 Hydrogen Water Filling Device 31 Filling Machine Body 31n Water Injection Nozzle 32 Pump 33 Purification Device 34 Sterilization Device

4 Can lid sealing device 41 Seamer

W Hydrogen water

BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the present invention includes one described in the following examples, and further includes various methods that can be improved within the technical idea.
In the explanation, we will discuss from the examination and consideration on the preservation of the generated hydrogen water. In other words, the current state of the storage method of “hydrogen water filled in a container (corresponding to“ hydrogen water filling product 10 ”of the present application”) and how hydrogen water is stored in a normal temperature atmosphere, hydrogen from hydrogen water From the basic technical idea of the present invention, whether or not the release of the above is suppressed. Then, after explaining (defining) the name of the can body and hydrogen water when producing the filled product 10, the production method will be described together with the explanation of the filling product producing apparatus.
Here, in this specification, hydrogen water in a hermetically filled state packed in a container (can container in the present invention) is referred to as “filled product 10 of hydrogen water”, which is simply referred to as “filled product 10”. It may be called.

[Examination and consideration on preservation of hydrogen water]
The present inventor, as a first step to grasp the current problem of storage stability of hydrogen water, first, the concentration of the commercially available “hydrogen water filled in a container” is changed over time (here, approximately every month, Over 6 months). The obtained results are shown in FIG. Here, the products of each company A to K use products of the same lot (products manufactured under the same conditions). In addition, "hydrogen water filled in a container" purchased as a sample is
(1) Filling with PET bottles (2) Filling with aluminum pouch (3) Filling with aluminum bottles (1) Some PET bottle type products have a dissolved hydrogen concentration of “0” at the time of measurement. (For example, other company's products HK) could not be measured over time.
In addition, some of the other company's products AK that are on the market have a very low dissolved hydrogen concentration even though they are just after purchase. (2) Both aluminum pouch filling and (3) aluminum bottle filling Dissolved hydrogen concentration decreased over time, and it was confirmed that the concentration decreased to about half of the initial concentration after 3 months. (2) Aluminum pouch and (3) Aluminum bottle form “hydrogen water” for a long time It became clear that it could not be saved. The dissolved hydrogen concentration was measured using a dissolved hydrogen meter “DH-35A” manufactured by Toa DKK Corporation.

In addition, in the results of FIG. 5, there are those that exceed the initial measured concentration after one month, and those that exceed the numerical value (dissolved hydrogen concentration) after one month after two months. This is because, since the product in a sealed state is opened, in reality, the same manufacturer and product are measured at the time of one month and the initial measurement, but different samples (individuals) are measured (one If the lid is opened once, even if the lid is closed again, hydrogen can easily escape due to air contact. In other words, the data shows that even if the dissolved hydrogen concentration is increased, it does not actually increase, but sample errors (individual differences) that occur in the same product originally existed. As shown in FIG. 5, it is necessary to overlook the data measured over a long period of, for example, about 6 months.

Next, in order to clarify the factors that affect the storage stability of hydrogen water, how the dissolved hydrogen concentration changes with time by filling two containers with different water contact areas with hydrogen water. Was measured. The obtained result is shown in FIG. As can be seen from the graph of FIG. 6, the larger the area in contact with air, the greater the decrease in dissolved hydrogen concentration. In this experiment, after 2 hours (120 minutes), the concentration decreased to 1/4 or less of the initial concentration. It is a point. From this result, it can be seen that “hydrogen water” comes out of “hydrogen water” when it comes into contact with air. Therefore, in order to preserve the “hydrogen water” filled in the container, the contact with air is cut off. It was concluded that it was extremely effective.

Next, when hydrogen water filled in a plastic bottle is prevented from touching the air, specifically, "hydrogen water" is filled to prevent air from entering the plastic bottle (so that no headspace is created). In such a case, it was verified whether or not “hydrogen water” could be stored. The obtained results are shown in FIG. From this figure, it was found that even if the PET bottle was fully filled with hydrogen water, it decreased to half of the initial dissolved hydrogen concentration after 10 hours. Of course, it was also found that the dissolved hydrogen concentration was further reduced in the case where the head space was provided than in the case where the full space was filled.

When the point that the dissolved hydrogen concentration of hydrogen water decreases in a PET bottle was examined, it was thought that the “gas permeability” of synthetic resins was involved. For example, according to the literature comparing the gas permeability of rubber, hydrogen shows gas permeability about 5 times that of nitrogen as follows, and it penetrates rubber about twice as much as oxygen. I understood.
Hydrogen (MW = 2) 1.4
Helium (MW = 4) 1.0
Oxygen (MW = 32) 0.8
Nitrogen (MW = 28) 0.3

Although accurate comparison data was not available, it is clear from various literatures that, like rubber, PET bottles are also gas permeable, especially for hydrogen, which has the smallest molecular size. Obviously, it is stronger than other gas species. For this reason, it was considered that the dissolved hydrogen concentration decreased within a few hours even when hydrogen water was fully filled in PET bottles.

Moreover, even if it is an aluminum cap bottle that seems to be completely sealed (sealed) at first glance with a metal that does not allow hydrogen to permeate, the concentration of dissolved hydrogen is reduced. In the case of a cap bottle, since it is sealed (sealed so that hydrogen water does not leak) with a synthetic resin or silicon packing affixed to the inside of the cap, the hydrogen contained in the hydrogen water It was thought that it permeated and slipped out of the bottle little by little.

As described above, as a result of considering the factors relating to the storage stability of hydrogen water, it was concluded that a technique incorporating all the following three items is effective in storing hydrogen water, and the present invention has been achieved.
(A) Use metal cans (both steel and aluminum) that are impermeable to hydrogen.
(B) Hydrogen water should not come into contact with gases other than hydrogen, such as air, especially in the sealed filling state.
(C) When sealing cans with packing, use as little gas permeable synthetic resins as possible.
As a result, in the present invention, the hydrogen water after hermetically filling is not brought into contact with a gas other than hydrogen, for example, by filling the metal can with hydrogen water so as not to generate a head space. . That is, according to the present invention, the filled product 10 is manufactured by the method satisfying the above conditions (A) to (C), and the decrease in the dissolved hydrogen concentration of the hydrogen water is suppressed.

Next, the name of the filling product 10 and the can body when manufacturing the filling product 10 will be described.
In the following description, for example, as shown in FIG. 2 (a), a filled product filled with hydrogen water W after generation into a can container so that the head space 14 is not generated in the can (upper part). In order to prevent the hydrogen water W after hermetically filling from coming into contact with a gas other than hydrogen, not only such full filling but also, for example, as shown in FIG. As described above, the head space 14 may be provided in the can (upper part) and filled with hydrogen gas.
In addition, as shown in FIG. 2 as an example, a full open end can (full open lid) in which the pull tab does not enter the contents (hydrogen water W) when opening the can lid is assumed. May be a steion tub can (SOT can) that gets into the contents.

The filled product 10 refers to a can body in which hydrogen water is filled in the can container 10A and then the lid is covered to seal off the hydrogen water from the outside. Here, the can body portion and the can lid portion are respectively provided with reference numerals “11” and “12”, and the rising portion from the opening surface of the can lid portion 12 to the upper end portion of the can body portion 11 is “ The rising portion 13 ”is used. Further, in the present invention, as shown in FIG. 2B, the can may not be fully filled with the hydrogen water W. In this specification, the portion is the head space 14.
Incidentally, the can container 10A indicates a bottomed cylindrical state in which the can body portion 11 has a can bottom (bottom lid) (that is, a state in which the can lid portion 12 is not attached). In obtaining 10A, the can body portion 11 and the bottom portion may be integrally formed by drawing (a so-called two-piece can), and the can body portion 11 and the can bottom portion may be formed separately and joined. (So-called three-piece cans).

In addition, the use of hydrogen water W is mainly intended for beverages, and in the case of beverages, once it is opened, hydrogen will escape from the hydrogen water W over time. The premise is to drink without taking time. For this purpose, the capacity of the can filled with the hydrogen water W is assumed to be a relatively small capacity (so-called “drinking size”) of about 100 to 350 ml. However, the use of hydrogen water is not limited to drinking, of course. For example, it may be used for cosmetics and lotions, and in the future, industrial uses are also conceivable. For this reason, the capacity is not limited to the above-mentioned “drink-out size”, and a large-capacity so-called pail can and drum can can be assumed as a can body. In this case, the can lid portion 12 is replaced with the can body portion 11. For sealing, it is conceivable to fix not only by tightening but also by using a separate fastening metal fitting or by welding.
In addition, for this reason, the filling product 10 (can body) is generally a cylindrical shape as long as it is drinkable, but is not necessarily limited thereto.

The hydrogen water W is prepared by dissolving hydrogen gas in raw water such as distilled water, for example, and it is desirable to dissolve hydrogen to the highest possible concentration, that is, to a state close to the saturated concentration. Moreover, as raw water, application of tap water etc. other than the distilled water mentioned above is considered.
Further, as described above, there are various methods for generating the hydrogen water W, and any of them can generate the hydrogen water W having a high concentration close to the saturated concentration. However, even if the hydrogen water W is generated with a high concentration, the dissolved hydrogen concentration of the hydrogen water W varies depending on the filling method itself, that is, how the can container 10A is packed. A method (attention) will be described.

As described above, there are many products in which the dissolved hydrogen concentration of hydrogen water currently on the market is about 0.1 to 1.0 ppm. However, if a container with low hydrogen storage stability is filled, the concentration of dissolved hydrogen decreases with time even when the lid is sealed, and the function as hydrogen water is significantly reduced. Moreover, since hydrogen has the property of easily getting out of the water, no matter how high the concentration of hydrogen water is produced, it is meaningless if hydrogen escapes during filling.
Therefore, in this embodiment, when the hydrogen water W is filled in the can container 10A, the contact time and contact area with other gases are reduced, and the filling speed and the can container 10A and the hydrogen water W at the time of filling are reduced. The positional relationship with the water injection nozzle 31n is taken into consideration. Furthermore, when filling, hydrogen water W may come into contact with other gases, but hydrogen water W that has come into contact with the can container 10A is overflowed (full filling). It is possible to fill and seal W with a higher concentration.

Hereinafter, the manufacturing method will be described together with an apparatus for manufacturing such a filled product 10 (hereinafter referred to as “filled product manufacturing apparatus 1”).
As an example, as shown in FIG. 1, the filled product manufacturing apparatus 1 fills a can container 10 </ b> A with a hydrogen water generation apparatus 2 that dissolves and contains hydrogen in raw water until a desired concentration is reached, and the generated hydrogen water W ( The hydrogen water filling device 3 (injected) and the can lid sealing device 4 for sealing (attaching) the can lid portion 12 to the can container 10A (can body portion 11) are provided.
Here, in obtaining the hydrogen water W, there are various methods as described above, and any of them can be adopted. Therefore, in the following description, the hydrogen water generating device 2 is omitted, and the hydrogen water filling device 3 and the can lid are omitted. The sealing device 4 will be described.

As shown in FIG. 1 as an example, the hydrogen water filling device 3 includes a filling machine main body 31 that injects the hydrogen water W generated by the preceding stage hydrogen water production device 2 into the can container 10A, and the hydrogen water W. A pump 32 for transferring toward the main body 31, a purification device 33 such as a filtration filter for purifying the hydrogen water W, and a sterilization device 34 (for example, a UV sterilization device) for sterilizing the hydrogen water W are provided. It is made up of. Of course, the can container 10A used in the present filling step has a bottomed cylindrical shape in which the can lid portion 12 is not sealed so that the hydrogen water W as the contents can be injected.

The filling machine main body 31 includes a water injection nozzle 31n for pouring the hydrogen water W into such a can container 10A. In this embodiment, the water injection nozzle 31n is configured to be movable up and down.
Further, in the present embodiment, the can can be used in one or both of the case where the hydrogen water W is filled into the can container 10A and the case where the can container 10A (can body part 11) is covered with the can lid part 12 after filling. In order to overflow the hydrogen water W filled in the container 10A and fill the hydrogen water W with a full charge, it is preferable to provide a drainage facility such as a drain pipe in the mounting table portion where the can container 10A is set in the filling machine main body 31. . In addition, when distinguishing and indicating these overflows, overflowing the hydrogen water W from the can container 10A at the time of filling is regarded as a primary overflow, and the hydrogen water W is overflowed from the can container 10A when the can lid portion 12 is attached. Is a secondary overflow.

Next, an example of an injection mode when the hydrogen water W is filled in the can container 10A and the effect thereof will be described.
In filling the canister 10A with the hydrogen water W, the submerged state in which the discharge port of the water injection nozzle 31n is positioned below the surface of the hydrogen water W already injected into the can container 10A except when the filling of the hydrogen water W is started. In this case, the water injection nozzle 31n is formed so as to be movable up and down.
That is, as an actual operation of the water injection nozzle 31n, for example, as shown in FIGS. 3A and 3B, the water injection nozzle 31n is first lowered to the vicinity of the bottom of the can 10A (the nozzle discharge port and the can at this time). The separation distance from the bottom varies depending on the filling speed and the like, and is determined in consideration of the rebound from the bottom of the can.) In this state, filling of the hydrogen water W is started. Thereafter, as sequentially shown in FIGS. 3C and 4A, the discharge port of the water injection nozzle 31n is preferably immersed in the hydrogen water W injected into the can container 10A.
Here, a mode in which the water injection nozzle 31n (discharge port) is gradually raised as the filling progresses is illustrated. At this time, for example, the liquid level of the hydrogen water W poured into the can 10A It is possible to gradually raise the water injection nozzle 31n so that the distance between the nozzle and the nozzle outlet is always kept constant.
Further, if the mounting table on which the can container 10A is set at the time of filling can be moved up and down, the same operation as described above can be performed by moving the mounting table up and down. In this case, the water injection nozzle 31n is not necessarily used. It is not necessary to configure the device so as to be movable up and down. That is, the raising / lowering operation | movement of the water injection nozzle 31n should just be performed relatively with respect to the mounting base which sets 10 A of can containers at the time of filling.

Further, by adopting such an injection mode (submerged filling), the impact of the hydrogen water W injected into the can container 10A at the time of filling, or contact with air or other gas can be suppressed, and the hydrogen from the hydrogen water W can be suppressed. It can prevent omission as much as possible.
Incidentally, the present inventor performed the above-described submerged filling when the water injection nozzle 31n (discharge port) is installed at a position higher than the upper end of the can container 10A (can body part 11) (that is, the nozzle discharge port is hydrogenated during filling). A test for comparison with non-submerged filling that does not submerge in water W has been conducted, and it has been confirmed that submerged filling has less hydrogen release. This is because in non-submersible filling, the nozzle discharge port is always set at a position higher than the upper end of the can container 10A, and filling is performed while hitting the water surface from this high position. It is considered that hydrogen escaped from the hydrogen water W at the same time as the water was entrained. For this reason, submerged filling was adopted in this embodiment.

Incidentally, the present inventor has also conducted an experiment to examine the influence of the difference in filling speed on the change in the dissolved hydrogen concentration. In this experiment, for example, a comparison was made at a filling speed of 2 liters / minute and a filling speed of 1 liter / minute, and as a result, no significant difference due to the difference in filling speeds appeared. It has been found that the lower speed of 1 liter / min tends to maintain a somewhat higher concentration.

Next, the can lid sealing device 4 will be described. The can lid sealing device 4 is a device for sealing (sealing) the can container 10A (can body portion 11) after covering with the can lid portion 12, in other words, sealing the can body and filling the inside. It can also be said to be a device that shuts off the hydrogen water W (full filling here) from the outside space, and here, a double clamping method used when a can is covered is adopted. For this reason, the seamer 41 is a substantial part of the can lid sealing device 4 in this embodiment. Incidentally, the double clamping is a method in which the can lid portion 12 (peripheral curl portion) is wound around the flange portion of the can body portion 11 (upper edge), and these are crimped and joined together.

When the can lid 12 is sealed, as an example, as shown in FIGS. 4 (b) and 4 (c), the can lid is placed on the upper edge of the can container 10 </ b> A (can body 11) filled with hydrogen water W. When the portion 12 is placed (when covered), it is preferable to overflow the hydrogen water W from the can container 10A (secondary overflow described above), and in this state, that is, the head space 14 exists above the can body. The can lid portion 12 is sealed in a state where it is not.
For this reason, in the seamer 41, drainage equipment such as a drain pipe for allowing secondary overflow is also provided in the base portion that directly or indirectly supports the can container 10A (can body) as in the hydrogen water filling device 3. Is preferably provided.

The filled product manufacturing apparatus 1 according to the present invention is configured as described above, and hereinafter, a preferable can body form (for example, in the case of full filling, the above-described case in actual use of the filled product 10 (can body)). The full open end (full open lid) shown in FIG. 2 is preferable.
When filling with low viscosity contents such as mineral water, a part of the contents may pop out when opening. For example, in a SOT can (steel tub can), when the plug is opened, the pull tab enters the content, and as a result, the content is pushed out and splashes out to the outside and wets the surroundings. is there. In particular, with SOT cans, the user (drinker) often holds the can in one hand and opens the pull tab with the other hand. It is thought that things are easy to scatter.

And it can be assumed that the scattering of the contents at the time of opening the plug becomes a complaint from the consumer. As a means for solving this problem, as shown in FIG. 2, a full open end in which the pull tab does not enter the contents is considered preferable. By the way, with this full-open end method, since the opening operation is often performed after the can is placed in a stable state on a desk or table when opening, the content is further prevented from being scattered around. It is considered possible.
In addition, when the head space 14 is provided in the filling product 10 as shown in FIG. 2B, that is, the inside of the can (upper part) and filled with hydrogen gas, the cap can be opened not only in the full open end but also in the SOT can. Preventing scattering of contents (prevention of spillage) can be performed more reliably.

Further, in the fully filled product 10, when the height of the “rising portion 13” shown in FIG. 2 is low, the liquid level of the hydrogen water W at the time of opening is the upper end (can edge) of the can body 11. In order not to spill the hydrogen water W when drinking the first mouth, the filled product 10 that has been opened must be transported to the mouth in a horizontal state and is difficult to drink Such a problem may occur.
As a means for solving this, if the size of the rising portion 13 is secured to about 5 to 10 mm, this will act as a weir, and the difficulty of drinking when drinking the first mouth can be eliminated. It is considered that the contents can be prevented from scattering around the contents when opened.

Next, the effectiveness of the storage stability of the filled product 10 (the product of the present invention) manufactured by the manufacturing method of the present invention will be described.
First, using a micro-bubble method, distilled water (hydrogen water W) whose dissolved hydrogen concentration has been increased to 1.4 ppm is fully filled into a 200 ml steel SOT can (steel tub can), and then no time is spent. In addition, double clamping was performed using a seamer manufactured by Toyo Seikan Co., Ltd.
The filled hydrogen water W was stored in a constant temperature bath at 37 ° C. (assuming summertime), and two of them were taken out every week, and the dissolved hydrogen concentration was measured. The dissolved hydrogen concentration was measured using a dissolved hydrogen meter “DH-35A” manufactured by Toa DKK Corporation.
The obtained results are shown in FIG. 8. From this graph, almost no decrease in the dissolved hydrogen concentration was observed, and the dissolved hydrogen concentration had a value of 1.0 ppm or more even after 6 months (180 days). Indicated.

Moreover, the following linear regression formula was calculated | required from this measurement result, and the fluctuation | variation of the hydrogen concentration for 6 months was computed statistically.
y = −0.001x + 1.2528 (y: hydrogen concentration x: storage days)
The regression equation shows that when the initial value is 1.25 ppm, the estimated value of the hydrogen concentration after 6 months is 1.07 ppm, and the decrease rate of the hydrogen concentration after 6 months storage is only about 14%. I understood that. This indicates that, if the dissolved hydrogen concentration at the time of filling is 1.25 ppm or more, the hydrogen water W can be stored while maintaining a high concentration of hydrogen of 1 ppm or more even under midsummer conditions. It was confirmed that the present invention is excellent as a method for storing hydrogen water W.
On the other hand, FIG. 5 shows the result of measuring the dissolved hydrogen concentration of another company's product stored at room temperature as described above for about 6 months every 1 month. Of these, products with dissolved hydrogen concentration of 1 ppm or more at the start of measurement are only 2 items out of 11 items, and it is objectively shown that it is difficult to fill the container with the dissolved hydrogen concentration kept high. At the same time, even a product showing a high concentration of 1 ppm or more is shown to have decreased to about 0.7 to 0.8 ppm after being stored for 3 months (much less than 1 ppm). Similar to the product of the present invention, the respective linear regression equations are obtained from the measurement results of the above two products (the above two items), and the hydrogen concentration reduction rate of the two products after storage for 3 months is calculated statistically to be 29 to 37%. In the case of storage for 6 months, the hydrogen concentration decrease rate was 59 to 75%. In this regard, as described above, the reduction rate of the hydrogen concentration when the product of the present invention is stored for 6 months is about 14%, and the product of the present invention reduces the decrease of hydrogen concentration to ¼ to 比較 compared to the products of other companies. It becomes clear that this is suppressed, and this is the excellent effect of the product of the present invention.
In the case of low-concentration hydrogen water with an initial hydrogen concentration of 0.4 ppm or less, there is a tendency that the decrease rate of the hydrogen concentration during the storage period tends to decrease. It was also found that the comparison with high-concentration hydrogen water was an important point.

The present invention can be applied as a method for preserving hydrogen water for drinking (drinking), as well as a method for preserving hydrogen water for cosmetics (skin water) in addition to drinking, and also applicable to industrial use. It is.

Claims

Hydrogen water containing hydrogen gas is filled in a container, and is a product filled with hydrogen water that is supplied in a sealed state between distribution and consumption,
The container is a metal can body;
This metal can is a product filled with hydrogen water, wherein the hydrogen water is set in a state where it does not come into contact with a gas other than hydrogen in a sealed state in which the can lid is sealed to the can body.
2. The hydrogen according to claim 1, wherein the hydrogen water filled in the metal can is not brought into contact with a gas other than hydrogen by fully filling the can with hydrogen water. Water filling product.
3. The hydrogen water filling product according to claim 1 or 2, wherein the hydrogen water filled in the can maintains a dissolved hydrogen concentration of 1 ppm or more even when half a year has passed in a sealed state. .
Hydrogen water in which hydrogen is dissolved is produced by mixing raw water and hydrogen gas, and the hydrogen water is filled into a metal can container, and then the can body part of the can container is covered with a can lid part. In a method of manufacturing a hydrogen water filled product by sealing a lid to a can body,
The hydrogen water to be filled in the can is sealed and filled in a sealed state in which the can lid is sealed to the can body, in a state where it does not come into contact with a gas other than hydrogen. Production method.
In preventing hydrogen water filled in the can from coming into contact with a gas other than hydrogen,
A primary overflow in which hydrogen water overflows from the can container in the process of filling hydrogen water into the can container;
Of the secondary overflow that overflows hydrogen water from the can body in the process of attaching the can lid to the can container filled with hydrogen water,
5. The method for producing a hydrogen water-filled product according to claim 4, wherein either one or both of the overflows are caused and the metal can is filled with hydrogen water.
When filling the can with the hydrogen water, the injection is performed in a submerged state where the discharge port of the water injection nozzle is located below the surface of the hydrogen water already injected into the can container, except when charging of the hydrogen water is started. The method for producing a product filled with hydrogen water according to claim 4 or 5, characterized in that it is configured as described above.
A hydrogen water generator for generating hydrogen water in which hydrogen is dissolved by mixing raw water and hydrogen gas;
A hydrogen water filling device for injecting the generated hydrogen water into a metal can container;
A can lid sealing device for covering the can body portion of the can container filled with hydrogen water with a can lid portion and sealing the can lid portion to the can body portion;
In an apparatus for producing a filled product in which hydrogen water is sealed and filled in a metal can,
The hydrogen water filling device is configured to fill hydrogen water until it overflows from the can container when filling the water container with the hydrogen water.
Alternatively, the can lid sealing device is configured such that when the can lid portion is attached to the can body portion, the hydrogen water is configured to overflow from the can container, either or both. , Hydrogen water filling product manufacturing equipment.
The hydrogen water filling device comprises a water injection nozzle for filling hydrogen water into a can container,
The water injection nozzle is set to perform injection in a submerged state in which the discharge port of the water injection nozzle is positioned below the surface of the hydrogen water already injected into the can container, except when charging of the hydrogen water is started. The manufacturing apparatus of the filling product of hydrogen water of Claim 7.