JP2002205067A - Washing water having sterilizing ability and its manufacturing method - Google Patents
Washing water having sterilizing ability and its manufacturing methodInfo
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- JP2002205067A JP2002205067A JP2001005162A JP2001005162A JP2002205067A JP 2002205067 A JP2002205067 A JP 2002205067A JP 2001005162 A JP2001005162 A JP 2001005162A JP 2001005162 A JP2001005162 A JP 2001005162A JP 2002205067 A JP2002205067 A JP 2002205067A
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- water
- electrolyzed water
- strongly
- temperature
- electrolyzed
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Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、塩化物塩の水溶液
を被電解水として電解生成された強酸性電解水と強アル
カリ性電解水からなる殺菌能を有する洗浄水、および、
同洗浄水の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing water having a sterilizing ability comprising a strongly acidic electrolyzed water and a strongly alkaline electrolyzed water electrolyzed using an aqueous solution of a chloride salt as water to be electrolyzed, and
The present invention relates to a method for producing the washing water.
【0002】[0002]
【従来の技術】塩化ナトリウム、塩化ナトリウムを主体
とする食塩、塩化カリウム、塩化カルシウム等の塩化物
塩を溶解した水溶液を被電解水とする有隔膜電解では、
強酸性電解水および強アルカリ性電解水が互いに分離し
た状態で生成される。これらの電解水のうち、強酸性電
解水は高い殺菌作用を有することから各種の分野で殺菌
水として利用され、また、強アルカリ性電解水は高い洗
浄作用を有することから各種の分野で洗浄水として利用
されている。2. Description of the Related Art In a diaphragm electrolysis using an aqueous solution in which a chloride salt such as sodium chloride, sodium chloride or sodium chloride, potassium chloride, calcium chloride or the like is dissolved as water to be electrolyzed,
The strongly acidic electrolyzed water and the strongly alkaline electrolyzed water are generated in a state where they are separated from each other. Among these electrolyzed waters, strongly acidic electrolyzed water is used as a germicidal water in various fields because it has a high bactericidal action, and strongly alkaline electrolyzed water is used as a rinsing water in various fields because it has a high rinsing action. It's being used.
【0003】従って、強酸性電解水と強アルカリ性電解
水を互いに合体してなる電解水は、それぞれ有する優れ
た殺菌作用と洗浄作用を併せ有するものと推測され、被
洗浄物の殺菌と洗浄を同時に行える洗浄水、すなわち、
殺菌能を有する洗浄水としてその提供が要請される。こ
の要請に対処するには、単純には、強酸性電解水と強ア
ルカリ性電解水を適宜の割合で混合する手段や、これら
の混合水の洗浄作用を高めるべく高温に保持する手段が
想到される。しかしながら、このような単純な混合手段
では、強酸性電解水が有する高い殺菌作用が喪失するた
め、高い殺菌能を有する洗浄水を製造することはできな
い。[0003] Therefore, it is presumed that the electrolyzed water obtained by combining the strongly acidic electrolyzed water and the strongly alkaline electrolyzed water with each other has both excellent sterilizing action and cleaning action, and simultaneously sterilizes and cleans the object to be cleaned. Wash water that can be done,
Its provision is required as washing water having a sterilizing ability. In order to cope with this demand, a means for mixing the strongly acidic electrolyzed water and the strongly alkaline electrolyzed water at an appropriate ratio or a means for maintaining the temperature at a high temperature in order to enhance the washing action of the mixed water can be considered. . However, such a simple mixing means loses the high bactericidal action of the strongly acidic electrolyzed water, so that it is not possible to produce washing water having a high bactericidal ability.
【0004】[0004]
【発明が解決しようとする課題】強酸性電解水が有する
殺菌作用は、電解水中に存在する塩素成分、所謂、有効
塩素に起因するものと認められているが、塩素成分は電
解水中ではpHの異なる領域では種々の異なる形態で存
在し、殺菌作用もpHの異なる領域では大きく相違にし
ている。図1は、電解水中に存在する塩素成分の各pH
領域での形態を示すグラフであり、塩素成分は、pHが
3.0未満という低い領域ではCl2の形態で多く存在
し、pHが3.0〜7.5という中間領域ではHOCl
の形態で多く存在し、pHが7.5を越える高い領域で
はOCl-の形態で多く存在している。The bactericidal action of the strongly acidic electrolyzed water has been recognized as being caused by a chlorine component present in the electrolyzed water, so-called available chlorine. It exists in various different forms in different regions, and the bactericidal action is greatly different in the regions having different pH. Fig. 1 shows the pH of chlorine components present in electrolyzed water.
FIG. 4 is a graph showing the morphology in the region, where the chlorine component is abundant in the form of Cl 2 in the low region where the pH is less than 3.0, and is HOCl in the intermediate region where the pH is 3.0 to 7.5.
Many in the form, at high region pH exceeds 7.5 OCl - are present much in forms.
【0005】塩素成分は、これらの形態のうちHOCl
の形態で、最も高い殺菌作用を発揮する。また、塩素成
分は、Cl2の形態では殺菌作用が低く、また、OCl-
の形態でも殺菌作用が低く、かつ、OCl-の形態は被
洗浄物に対する残留性が高いという問題がある。また、
強酸性電解水を高温状態にすると、塩素成分はCl2の
形態で揮発して漸次低減して、強酸性電解水は殺菌作用
を漸次低減することになる。一方、強アルカリ性電解水
の洗浄作用は温度の影響を大きく受け、洗浄作用を向上
させるには、強アルカリ性電解水を高温に保持すること
が好ましい。[0005] Of these forms, the chlorine component is HOCl
In its form, it exhibits the highest bactericidal action. Further, the chlorine component, low bactericidal action in the form of Cl 2, also, OCl -
Lower bactericidal action in the form of, and, OCl - forms a problem of high residual resistance to the object to be cleaned. Also,
When the strongly acidic electrolyzed water is brought to a high temperature state, the chlorine component volatilizes in the form of Cl 2 and gradually decreases, and the strongly acidic electrolyzed water gradually reduces the bactericidal action. On the other hand, the washing action of the strongly alkaline electrolyzed water is greatly affected by the temperature, and in order to improve the washing action, it is preferable to keep the strongly alkaline electrolyzed water at a high temperature.
【0006】このため、殺菌能を有するとともに高い洗
浄力を有する洗浄水を製造すべく、単純に、高温に保持
した強酸性電解水と高温に保持した強アルカリ性電解水
を混合して調製する場合には、製造された洗浄水が適正
なpH領域に調製し得たとしても、調製過程での温度の
影響により塩素成分がCl2の形態で揮発して、洗浄水
はその殺菌作用を大幅に低下することになる。[0006] Therefore, in order to produce cleaning water having a sterilizing ability and a high detergency, simply preparing a mixture of strongly acidic electrolyzed water maintained at a high temperature and strongly alkaline electrolyzed water maintained at a high temperature. However, even if the produced washing water can be adjusted to an appropriate pH range, the chlorine component volatilizes in the form of Cl 2 due to the effect of the temperature during the preparation process, and the washing water greatly reduces its sterilizing action. Will decrease.
【0007】これらの問題に対処すべく、塩化物塩の水
溶液に塩酸等の酸を溶解させた酸性の水溶液を被電解水
として採用し、この被電解水を無隔膜電解にてpHが5
前後の弱酸性電解水を生成する製造方法が提案されてい
る。しかしながら、当該製造方法においては、被電解水
のコストが高くて電解水の製造のランニングコストが大
幅に増大するという問題があり、また、高い洗浄作用を
有する強アルカリ性電解水を単独で生成し得ないという
問題がある。To cope with these problems, an acidic aqueous solution obtained by dissolving an acid such as hydrochloric acid in an aqueous solution of a chloride salt is employed as the water to be electrolyzed.
A production method has been proposed in which weakly acidic electrolyzed water before and after is produced. However, in the production method, there is a problem that the cost of the water to be electrolyzed is high and the running cost of the production of the electrolyzed water is greatly increased, and the strong alkaline electrolyzed water having a high cleaning action can be generated alone. There is no problem.
【0008】従って、本発明の目的は、強酸性電解水と
強アルカリ性電解水を混合してなる温弱酸性電解水で高
い殺菌作用を有する洗浄水、換言すれば、温弱酸性で殺
菌能を有する洗浄水を提供することにある。Accordingly, an object of the present invention is to provide a washing water having a high bactericidal action with a weakly acidic electrolyzed water obtained by mixing a strongly acidic electrolyzed water and a strongly alkaline electrolyzed water. It is to provide washing water having.
【0009】[0009]
【課題を解決するための手段】本発明は、殺菌能を有す
る洗浄水、および、同洗浄水の製造方法に関するもので
ある。しかして、本発明に係る洗浄水は、塩化物塩の水
溶液を被電解水として有隔膜電解にて生成された強酸性
電解水に、塩化物塩の水溶液を被電解水として有隔膜電
解にて生成された強アルカリ性電解水を高温状態で混合
してなる温弱酸性の洗浄水であり、pHが3.0〜7.
5の範囲で温度が常温〜70℃の範囲にあることを特徴
とするものである。SUMMARY OF THE INVENTION The present invention relates to washing water having a sterilizing ability and a method for producing the same. Thus, the washing water according to the present invention is a strong acid electrolyzed water generated by a diaphragm electrolysis using an aqueous solution of a chloride salt as an electrolyzed water, and a diaphragm electrolysis using an aqueous solution of a chloride salt as an electrolyzed water. This is weakly acidic washing water obtained by mixing the generated strongly alkaline electrolyzed water in a high temperature state, and has a pH of 3.0 to 7.0.
5, wherein the temperature is in the range of room temperature to 70 ° C.
【0010】また、本発明に係る洗浄水の製造方法は、
塩化物塩の水溶液を被電解水として有隔膜電解にて生成
された強アルカリ性電解水を貯留タンク内にて加熱して
70℃以下に保温して温強アルカリ性電解水を調製し、
この温強アルカリ性電解水を、塩化物塩の水溶液を被電
解水として有隔膜電解にて生成された強酸性電解水に混
合して、pHが3.0〜7.5の範囲で温度が常温〜7
0℃の範囲にある温弱酸性水に調製することを特徴とす
るものである。[0010] Further, the method for producing washing water according to the present invention comprises:
A strong alkaline electrolyzed water produced by diaphragm electrolysis using an aqueous solution of a chloride salt as an electrolyzed water is heated in a storage tank and kept at 70 ° C. or lower to prepare a warm strongly alkaline electrolyzed water,
This warm strongly alkaline electrolyzed water is mixed with strongly acidic electrolyzed water generated by diaphragm electrolysis using an aqueous solution of a chloride salt as water to be electrolyzed, and the pH is in the range of 3.0 to 7.5 and the temperature is room temperature. ~ 7
It is characterized by being prepared in warm and weak acidic water in the range of 0 ° C.
【0011】[0011]
【発明の作用・効果】本発明に係る洗浄水は、温弱酸性
で高い殺菌作用と高い洗浄作用を保持するものであっ
て、シンクに貯水し撹拌状態で使用する態様や、シャワ
ー等の噴射状態で使用する態様等、種々の使用態様によ
っても、有効塩素が揮発することがなくて安定な特性を
維持し、高い殺菌作用と洗浄作用の両作用を発揮する。
これらの使用態様では、洗浄水が強酸性や強アルカリ性
ではなく弱酸性であることから、使用者に対する作用も
やさしく、使用者に対して何等の悪影響も及ぼすことは
ない。The washing water according to the present invention has a high sterilizing action and a high washing action under mildly acidic conditions. The washing water can be stored in a sink and used in a stirred state, or can be sprayed in a shower or the like. Even in various use modes such as a mode of use in a state, the effective chlorine is not volatilized, the stable characteristics are maintained, and both the high sterilizing action and the cleaning action are exhibited.
In these use modes, since the washing water is weakly acidic, not strongly acidic or strongly alkaline, it has a gentle effect on the user and has no adverse effect on the user.
【0012】また、本発明に係る洗浄水の製造方法にお
いては、強アルカリ性電解水を貯留タンク内にて加熱し
て保温し、この加熱された強アルカリ性電解水を強酸性
電解水に混合してpHが3.0〜7.5の範囲で温度が
常温〜70℃の範囲にある温弱酸性水に調製する手段を
採っている。このため、温弱酸性水の調製時に、強酸性
電解水が含有する塩素成分の揮発が少なくて、有効塩素
を十分に残留させることができる。このため、温弱酸性
水である洗浄水には、強酸性電解水が含有する有効塩素
の残留に起因して高い殺菌作用を有し、かつ、強アルカ
リ性電解水が有する洗浄作用の残留に起因して高い洗浄
作用を有するものとなる。Further, in the method for producing washing water according to the present invention, the strongly alkaline electrolyzed water is heated and kept in a storage tank, and the heated strongly alkaline electrolyzed water is mixed with the strongly acidic electrolyzed water. A means for adjusting the temperature to a weakly acidic water having a pH in the range of 3.0 to 7.5 and a temperature in the range of room temperature to 70 ° C. is employed. Therefore, at the time of preparation of the weakly acidic water, the chlorine component contained in the strongly acidic electrolyzed water is less volatilized, and sufficient available chlorine can be left. For this reason, the washing water, which is a weakly acidic water, has a high bactericidal action due to the residual effective chlorine contained in the strongly acidic electrolyzed water, and also due to the residual washing action of the strongly alkaline electrolyzed water. It has a high cleaning action.
【0013】[0013]
【発明の実施の形態】本発明に係る洗浄水は、温弱酸性
で高い殺菌作用と高い洗浄作用を保持するものであり、
塩化物塩の水溶液を被電解水として有隔膜電解にて、互
いに分離して生成される強酸性電解水と強アルカリ性電
解水とを混合して調製されているものである。本発明に
おいては、被電解水を調製するための塩化物塩として、
塩化ナトリウム、塩化ナトリウムを主体とする食塩、塩
化カリウム、塩化カルシウム等のいずれかまたは組み合
わせて適宜採用することができる。本実施の形態では、
食塩を採用して実施している。BEST MODE FOR CARRYING OUT THE INVENTION The washing water according to the present invention has a high sterilizing action and a high washing action under mildly acidic conditions.
It is prepared by mixing strongly acidic electrolyzed water and strongly alkaline electrolyzed water separated from each other by diaphragm electrolysis using an aqueous solution of a chloride salt as water to be electrolyzed. In the present invention, as a chloride salt for preparing the water to be electrolyzed,
Any of or a combination of sodium chloride, sodium chloride-based salt, potassium chloride, calcium chloride and the like can be appropriately employed. In the present embodiment,
It is implemented using salt.
【0014】本実施の形態では、食塩の濃度が0.1〜
1.0重量%の希薄食塩水であり、希薄食塩水を被電解
水とする有隔膜電解により、表1に示す強酸性電解水と
強アルカリ性電解水を生成し、この強酸性電解水と強ア
ルカリ性電解水を混合して温弱酸性水に調製して、洗浄
水を製造している。In this embodiment, the concentration of the salt is 0.1 to
It is a 1.0% by weight diluted saline solution, and the strongly acidic electrolyzed water and the strongly alkaline electrolyzed water shown in Table 1 are generated by diaphragm electrolysis using the diluted saline as the water to be electrolyzed. Washing water is manufactured by mixing alkaline electrolyzed water to prepare warm and weak acidic water.
【0015】[0015]
【表1】 [Table 1]
【0016】本実施の形態では、有隔膜電解により生成
された強アルカリ性電解水を一旦貯留タンクに貯留して
加熱し、70℃以下の温度に保温した状態の温強アルカ
リ性電解水を強酸性電解水に設定量だけ添加して混合す
る。この場合の温強アルカリ性電解水の強酸性電解水に
対する添加量は、強酸性電解水100mLに対して30
mL〜90mLである。これにより、pHが3.0〜
7.5で、温度が常温〜70℃の範囲にある温弱酸性水
である洗浄水を製造している。In the present embodiment, the strong alkaline electrolyzed water generated by the diaphragm electrolysis is temporarily stored in a storage tank and heated, and the warm strong alkaline electrolyzed water kept at a temperature of 70 ° C. or less is subjected to strong acidic electrolysis. Add the water to the set amount and mix. In this case, the addition amount of the strong strongly alkaline electrolyzed water to the strongly acidic electrolyzed water is 30 per 100 mL of the strongly acidic electrolyzed water.
mL-90 mL. Thereby, the pH becomes 3.0 to 3.0.
At 7.5, washing water, which is a weakly acidic water having a temperature in the range of room temperature to 70 ° C., is produced.
【0017】本実施の形態では、当該洗浄水の製造シス
テム中に、当該洗浄水を使用場所へ供給するための供給
経路を備えているとともに、強アルカリ性電解水の単独
を使用場所へ供給するための供給経路と、強酸性電解水
の単独を使用場所へ供給するための供給経路を備えてい
る。従って、当該洗浄水の製造システムでは、当該洗浄
水の使用による殺菌および洗浄処理と、強酸性電解水の
単独使用による低い酸性側での殺菌処理と、強アルカリ
性電解水の単独を使用による高いアルカリ性側での洗浄
処理の三通りの処理を行うことができる。In the present embodiment, the supply system for supplying the cleaning water to the place of use is provided in the system for producing the cleaning water, and the strong alkaline electrolyzed water alone is supplied to the place of use. And a supply path for supplying the strongly acidic electrolyzed water alone to the place of use. Therefore, in the washing water production system, sterilization and washing treatment by using the washing water, sterilization treatment on the low acid side by using strongly acidic electrolyzed water alone, and high alkalinity by using strongly alkaline electrolyzed water alone. It is possible to perform three kinds of processing of the cleaning processing on the side.
【0018】[0018]
【実施例】本実施例では、強酸性電解水(pH2.
6)、酸性電解水(pH3.0)、弱酸性電解水(pH
5.1)、および、次亜塩素酸ナトリウム水溶液中の塩
素成分の揮発状態の経時的変化を検討するための実験
(実験1)と、強酸性電解水と強アルカリ性電解水を混
合することにより温弱酸性水を調製する場合の、強酸性
電解水に対する強アルカリ性電解水の添加量の適正な量
を検討するための実験(実験2)を行った。EXAMPLE In this example, strongly acidic electrolyzed water (pH 2.
6), acidic electrolyzed water (pH 3.0), weakly acidic electrolyzed water (pH
5.1) and an experiment (Experiment 1) for examining the change over time of the volatile state of the chlorine component in the aqueous sodium hypochlorite solution, and mixing strongly acidic electrolyzed water and strongly alkaline electrolyzed water. An experiment (Experiment 2) for examining an appropriate amount of strongly alkaline electrolyzed water to be added to strongly acidic electrolyzed water when preparing warm and weakly acidic water was performed.
【0019】(実験1):本実験では、電解水として、
強酸性電解水(pH2.6)、酸性電解水(pH3.
0)、温弱酸性電解水(pH5.1)、および、次亜塩
素酸ナトリウム水溶液(pH8.9)を使用して、これ
らの電解水および水溶液を50℃で開放状態で放置し、
放置して一定時間毎の残留する塩素成分の変化量を測定
した。得られた結果を表2に示すとともに、図2にグラ
フで示す。なお、塩素成分の測定にはオルトトリジン測
定法を採用した。(Experiment 1): In this experiment, as the electrolyzed water,
Strongly acidic electrolyzed water (pH 2.6), acidic electrolyzed water (pH 3.
0), a weakly acidic electrolyzed water (pH 5.1), and an aqueous solution of sodium hypochlorite (pH 8.9), and the electrolyzed water and the aqueous solution are left open at 50 ° C.,
The sample was allowed to stand, and the amount of change in the remaining chlorine component at regular intervals was measured. The obtained results are shown in Table 2 and graphically in FIG. Note that an ortho-tolidine measurement method was employed for measuring the chlorine component.
【0020】本実験で採用した強酸性電解水(pH2.
6)は、希薄食塩水を被電解水とする有隔膜電解にて生
成された強酸性電解水であって、50℃に加熱保持して
いるものである。また、次亜塩素酸ナトリウム水溶液
(pH8.9)は、純水に次亜塩素酸ナトリウムの試薬
を添加して調製して、50℃に加熱保持しているもので
ある。The strongly acidic electrolyzed water (pH 2.
6) is strongly acidic electrolyzed water generated by diaphragm electrolysis using diluted saline as electrolyzed water, which is heated and maintained at 50 ° C. The aqueous sodium hypochlorite solution (pH 8.9) is prepared by adding a reagent of sodium hypochlorite to pure water, and is heated and maintained at 50 ° C.
【0021】本実験で採用している酸性電解水(pH
3.0)は、希薄食塩水を被電解水とする有隔膜電解に
て生成された強酸性電解水と強アルカリ性電解水を混合
して調製したものであって、加熱して所定温度に保持さ
れている強アルカリ性電解水(温強アルカリ性電解水)
を常温の強酸性電解水に添加して、50℃でpH3.0
の酸性に調製しているものである。また、本実験で採用
している温弱酸性電解水(pH5.1)も同様の手段に
より調製したものであって、加熱して所定温度に保持さ
れている強アルカリ性電解水(温強アルカリ性電解水)
を常温の強酸性電解水に添加して、50℃でpH5.1
の弱酸性に調製しているものである。これらの酸性電解
水(pH3.0)および弱酸性電解水(pH5.1)の
調製においては、強酸性電解水中の塩素成分の揮発を抑
制するため、高温に保持されている温強アルカリ性電解
水を強酸性電解水中に添加する手法を採って、強酸性電
解水の弱酸性化と温度の上昇とのバランスを図って、塩
素成分の揮発を抑制している。The acidic electrolyzed water (pH
3.0) is a mixture prepared by mixing strongly acidic electrolyzed water and strongly alkaline electrolyzed water generated by diaphragm electrolysis using diluted saline as electrolyzed water, and is heated and maintained at a predetermined temperature. Strong alkaline electrolyzed water (temperature strong alkaline electrolyzed water)
Was added to strongly acidic electrolyzed water at room temperature, and pH 3.0 at 50 ° C.
It is prepared to be acidic. The weakly acidic electrolyzed water (pH 5.1) used in this experiment was also prepared by the same means, and was heated to a strong alkaline electrolyzed water (temperaturely strong alkaline electrolyzed water) maintained at a predetermined temperature. water)
Was added to strongly acidic electrolyzed water at room temperature, and pH 5.1 at 50 ° C.
Is prepared to be slightly acidic. In preparing these acidic electrolyzed water (pH 3.0) and weakly acidic electrolyzed water (pH 5.1), in order to suppress the volatilization of the chlorine component in the strongly acidic electrolyzed water, the strong and strongly alkaline electrolyzed water maintained at a high temperature is used. Is added to the strongly acidic electrolyzed water to balance the weak acidification of the strongly acidic electrolyzed water and the rise in temperature, thereby suppressing the volatilization of the chlorine component.
【0022】[0022]
【表2】 [Table 2]
【0023】表2および図2のグラフを参照すると、電
解水のpHが3.0であれば、酸性電解水を長時間放置
していても、酸性電解水中には多くの量の塩素成分が残
留していて、殺菌作用を発揮するHOClの形態(有効
塩素)を保持している。また、塩素成分が殺菌作用を発
揮するHOClの形態を保持するpHの領域は図1のグ
ラフに示しているが、電解水がpH3.0では高い割合
でHOClの形態を保持している。また、電解水のpH
が5.1の場合の長時間の放置による塩素成分の残存量
(有効塩素量)は、pHが3.0の場合に比較して一層
多くなる。pH値の上限は、図1のグラフを参照すれ
ば、塩素成分が殺菌作用を発揮するHOClの形態の割
合が高いpH7.5である。Referring to Table 2 and the graph of FIG. 2, if the pH of the electrolyzed water is 3.0, even if the electrolyzed water is left for a long time, a large amount of chlorine component is contained in the acidly electrolyzed water. It remains and retains the form of HOCl (effective chlorine) that exerts a bactericidal action. The pH range in which the chlorine component retains the HOCl form in which the chlorine component exerts a bactericidal action is shown in the graph of FIG. 1, but when the electrolyzed water has a pH of 3.0, the HOCl form is retained at a high rate. Also, the pH of the electrolyzed water
Is 5.1, the residual amount of chlorine component (available chlorine amount) after being left for a long time is greater than when the pH is 3.0. Referring to the graph of FIG. 1, the upper limit of the pH value is pH 7.5, at which the proportion of HOCl in which the chlorine component exerts a bactericidal action is high.
【0024】従って、高い殺菌作用と洗浄作用を有す
る、本発明が意図している殺菌能を有する洗浄水は、p
Hが3.0〜7.5の範囲のものであることが好まし
く、特に、pHが4.0〜6.0の範囲であることが好
ましい。なお、本発明においては、pHが3.0〜7.
5の範囲の電解水を弱酸性電解水と称している。弱酸性
電解水の温度については、常温〜70℃の範囲にあり、
この温度範囲は洗浄水としての使用上の洗浄効果の良好
な範囲であり、かつ、洗浄作業上の温度範囲である。Accordingly, the cleaning water having a high bactericidal action and a cleaning action and having a bactericidal ability intended by the present invention is p
H is preferably in the range of 3.0 to 7.5, and particularly preferably the pH is in the range of 4.0 to 6.0. In addition, in this invention, pH is 3.0-7.
The electrolyzed water in the range of 5 is called weakly acidic electrolyzed water. Regarding the temperature of the weakly acidic electrolyzed water, it is in the range of room temperature to 70 ° C.,
This temperature range is a good range of the cleaning effect in use as the cleaning water, and is a temperature range for the cleaning operation.
【0025】(実験2):本実験は、温弱酸性電解水を
調製する場合の強酸性電解水に対する強アルカリ性電解
水の添加量の適正量を検討する実験であり、強酸性電解
水(pH2.6)と強アルカリ性電解水(pH11.
4)を使用して、常温の強酸性電解水(pH2.6)1
00mL中に、加熱して50℃に保持されている強アル
カリ性電解水を設定された各容量(mL)を添加してp
H、水温、および有効塩素量(mg/L)の変化を測定
した。得られた結果を表3に示す。なお、塩素成分の測
定にはオルトトリジン測定法を採用した。(Experiment 2): This experiment is an experiment for examining an appropriate amount of strongly alkaline electrolyzed water to be added to strongly acidic electrolyzed water when preparing warm and weakly electrolyzed water. .6) and strongly alkaline electrolyzed water (pH 11.
4) Using strongly acidic electrolyzed water (pH 2.6) 1 at room temperature
In 00 mL, add a set volume (mL) of strongly alkaline electrolyzed water heated to and maintained at 50 ° C., and add p.
Changes in H, water temperature, and available chlorine (mg / L) were measured. Table 3 shows the obtained results. In addition, the ortho-tolidine measurement method was used for the measurement of the chlorine component.
【0026】[0026]
【表3】 [Table 3]
【0027】表3を参照すると、常温の強酸性電解水
(pH2.6)100mLに対して、50℃の強アルカ
リ性電解水(pH11.4)を添加する場合には、強ア
ルカリ性電解水を30mL添加するとpHが3.0以上
となり、強アルカリ性電解水を90mL添加することに
よりpHが7.8になる。すなわち、強酸性電解水(p
H2.6)100mLに対する強アルカリ性電解水(p
H11.4)の適正な添加量は、30mL〜90mLの
範囲にある。また、この範囲のpH領域では、有効塩素
量が27mL〜18mLであり、この範囲の値は十分な
殺菌作用を有する値である。Referring to Table 3, when adding strongly alkaline electrolyzed water (pH 11.4) at 50 ° C. to 100 mL of strongly acidic electrolyzed water (pH 2.6) at room temperature, 30 mL of strongly alkaline electrolyzed water was added. The pH becomes 3.0 or more when added, and the pH becomes 7.8 by adding 90 mL of strongly alkaline electrolyzed water. That is, strongly acidic electrolyzed water (p
H2.6) 100 ml of strongly alkaline electrolyzed water (p
The appropriate addition amount of H11.4) is in the range of 30 mL to 90 mL. In the pH range of this range, the available chlorine amount is 27 mL to 18 mL, and the value in this range is a value having a sufficient bactericidal action.
【0028】希薄食塩水を被電解水とする有隔膜電解で
は、被電解水の濃度、電解電流値、電解時間等の電解条
件を変更することにより、電解条件の変更に応じてそれ
ぞれ異なる特性の強酸性電解水および強アルカリ性電解
水が生成される。しかしながら、同一の電解条件で有隔
膜電解して生成される強酸性電解水と強アルカリ性電解
水とは、常にほぼ相対的な関係にあることから、同一の
電解条件で有隔膜電解して生成される強酸性電解水と強
アルカリ性電解水とを採用して弱酸性電解水を調製する
場合には、その混合量の適正な範囲は上記した範囲、す
なわち、強酸性電解水100mLに対する強アルカリ性
電解水の適正な混合量30mL〜90mLの範囲にほぼ
一致する。In the case of diaphragm electrolysis using diluted saline as the water to be electrolyzed, by changing the electrolysis conditions such as the concentration of the electrolyzed water, the electrolysis current value, and the electrolysis time, different characteristics are obtained according to the change in the electrolysis conditions. Strongly acidic electrolyzed water and strongly alkaline electrolyzed water are generated. However, since strongly acidic electrolyzed water and strongly alkaline electrolyzed water generated by diaphragm electrolysis under the same electrolysis conditions are always almost in relative relation, they are produced by diaphragm electrolysis under the same electrolysis conditions. When weakly acidic electrolyzed water is prepared by employing strongly acidic electrolyzed water and strongly alkaline electrolyzed water, the appropriate range of the mixing amount is the above range, that is, the strongly alkaline electrolyzed water with respect to 100 mL of strongly acidic electrolyzed water. Approximately in the range of 30 mL to 90 mL.
【図1】電解水のpHと電解水中に存在する塩素成分の
形態およびその存在率を示すグラフである。FIG. 1 is a graph showing the pH of electrolyzed water, the form of chlorine components present in the electrolyzed water, and the abundance thereof.
【図2】各電解水および水溶液の水温50℃で放置した
状態での塩素成分の揮発状態の経時的変化を示すグラフ
である。FIG. 2 is a graph showing the change over time in the volatilization state of chlorine components when each of the electrolyzed water and the aqueous solution is left at a water temperature of 50 ° C.
Claims (2)
電解にて生成された強酸性電解水に、塩化物塩の水溶液
を被電解水として有隔膜電解にて生成された強アルカリ
性電解水を高温状態で混合してなる洗浄水であり、pH
が3.0〜7.5の範囲で温度が常温〜70℃の範囲に
あることを特徴とする殺菌能を有する洗浄水。1. A strongly alkaline electrolytic solution produced by diaphragm electrolysis using an aqueous solution of a chloride salt as electrolyzed water and a strongly acidic electrolyzed water produced by diaphragm electrolysis using an aqueous solution of a chloride salt as electrolyzed water. Washing water obtained by mixing water at a high temperature.
Wherein the temperature is in the range of 3.0 to 7.5 and the temperature is in the range of normal temperature to 70 ° C.
電解にて生成された強アルカリ性電解水を貯留タンク内
にて加熱して70℃以下に保温して温強アルカリ性電解
水を調製し、この温強アルカリ性電解水を、塩化物塩の
水溶液を被電解水として有隔膜電解にて生成された強酸
性電解水に混合して、pHが3.0〜7.5の範囲で温
度が常温〜70℃の範囲にある温弱酸性水に調製するこ
とを特徴とする殺菌能を有する洗浄水の製造方法。2. A strong alkaline electrolyzed water is prepared by heating a strongly alkaline electrolyzed water generated by diaphragm electrolysis using an aqueous solution of a chloride salt as water to be electrolyzed in a storage tank and keeping the temperature at 70 ° C. or lower. Then, this warm strongly alkaline electrolyzed water is mixed with strongly acidic electrolyzed water generated by diaphragm electrolysis using an aqueous solution of a chloride salt as water to be electrolyzed, and the pH is adjusted to a range of 3.0 to 7.5. Is prepared in warm and weak acidic water having a temperature in the range of room temperature to 70 ° C.
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WO2014098058A1 (en) * | 2012-12-21 | 2014-06-26 | 大日本印刷株式会社 | Beverage filling method |
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JP2007289838A (en) * | 2006-04-24 | 2007-11-08 | Tokyo Yogyo Co Ltd | Electrolytic water generator |
WO2014098058A1 (en) * | 2012-12-21 | 2014-06-26 | 大日本印刷株式会社 | Beverage filling method |
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