JPH0910772A - Production of sterilizing water and aseptic water - Google Patents

Abstract

PURPOSE: To inexpensively produce sterilizing water excellent in sterilizing effect by dissolving a heavy metal such as gold, silver, copper, zinc or tin in acidic ion water with specific pH made by an electrolytic water purifier. CONSTITUTION: A household electrolytic ion water maker is used to collect alkali ion water (pH : 8.0-9.0) as drinking water and a heavy metal such as gold, silver, copper, zinc or tin is dissolved in the acidic ion water with pH of 2.6-4.5 or strong acidic oxidation potential water with pH of 2.7 or less discharged at this time. By this method, sterilizing water drastically increased in sterilizing properties and used in the sterilization of MRSA or the like in a hospital and the washing one's face, hand-washing or gargling in a home is inexpensively obtained. This sterilizing water is neutralized to be used as aseptic water. For example, by mixing this sterilizing water with water-soluble cutting oil of mechanical cutting, oil having excellent aseptic properties is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to sterilization of MRSA (methicillin-resistant Staphylococcus aureus) and the like in hospitals, and sterilizing water used for home face washing, hand washing, gargle, etc., and water-soluble used for machine cutting, etc. The present invention relates to a method for producing preservative water used for preserving cutting oil.

[0002]

2. Description of the Related Art In the hospital, as electrolyzed water for preventing nosocomial infections such as MRSA, super-electrolyzed acidic ionized water having a pH of about 2.6 is used and has become a hot topic. In addition, electrolytic ionized water devices for obtaining alkaline ionized water have become widespread as household water fresheners, and alkaline ionized water is used as drinking water, and acidic ionized water that is a by-product is used as simple sterilizing water. .

In factories and the like which use water-soluble cutting oil, the water-soluble cutting oil is circulated and used, but in order to prevent its decay, a copper electrode plate is installed in the circulation line,
Copper ions are added to the water-soluble cutting fluid by electrolysis.

[0004]

The various sterilizing waters described above have various problems in their production and the like. For example, superelectrolytic acidic ionized water used in hospitals is obtained by electrolysis of saline solution, etc., and has a redox potential (ORP).
If it is not more than 1000 mV, there is a drawback that it does not exhibit strong antibacterial and antibacterial properties, resulting in too high equipment cost.

In addition, since alkaline ionized water, which is a main product produced by a domestic water dispenser, is suitable for drinking
Since it is 10 or less, the acidic ionized water as a by-product has a pH of 3 or more, and the bactericidal action is not so large.

Further, in order to prevent spoilage of the water-soluble cutting oil, copper ions are applied based on a copper electrode in a circulation line. However, since the oil is in a dispersed or solubilized state, copper ions from the electrode surface Is difficult to elute.

[0007] Further, generally, when it is desired to prepare oligodenamic heavy metal ionized water having a sterilizing power, it is obtained by electrolyzing these heavy metals as electrodes. However, since the electrode plate is actually scaled, ultrasonic cleaning is required and the manufacturing apparatus itself becomes expensive. Therefore, the present invention proposes to solve the above problems by dissolving a heavy metal having a bactericidal effect in electrolyzed acidic ion water that can be easily produced.

[0008]

The method for producing sterilizing water according to the present invention comprises acidic ionized water having a pH of 2.6 to 4.5 or strong acidic oxidizing potential water having a pH of 2.7 or less produced by an electrolytic water purifier. In addition, it is characterized in that an oligodenamic heavy metal such as gold, silver, copper, zinc or tin is dissolved. The method for producing antiseptic water is characterized in that the sterilized water is neutralized.

[0009]

Function: The sterilizing property of electrolytic acidic water produced by a general electrolytic water purifier having a pH of about 2.6 to 4.5 is not so strong. However, by dissolving a so-called oligodenamic heavy metal such as gold, silver, copper, zinc or tin therein, the bactericidal property is dramatically increased. In addition, pH of 2.7 or less, for example, pH 2.3 to
The oxidative potential water of about 2.4 has a corresponding bactericidal power, but stronger bactericidal property can be secured by dissolving the oligodeny heavy metal like the acidic water.

[0010]

Next, an embodiment of the present invention will be described. <First Example> Household electrolytic ion generator "Ange"
Alkaline ionized water (pH 8.0 to 9.0) was collected as drinking water using (manufactured by Nippon Intec Co., Ltd.), and acidic water pH 3.5 to 4.5 discharged at this time was measured with a Parisona ultrasonic cleaner. 500 ml was collected in (made by Inei Seieidou). Two 15 cm x 5 cm copper plates were immersed in this, and ultrasonic waves were applied to acidic water. After 20 minutes, the water temperature was 16 ° C.
To 30 ° C. At that time, the copper ion concentration in the acidic water was about 2 ppm (the copper ion concentration was measured by the pack test of Kyoritsu Institute of Physical and Chemical Research). The bactericidal action of this acidic water (sterilized water) 10 times diluted against MRSA is p
When compared with H2.6, ORP 1000 mV oxidation potential water, the bactericidal action superior to oxidation potential water was recognized.

<Second Embodiment> In the experiment of the first embodiment, a zinc plate was used instead of the copper plate. In this case, no ultrasonic cleaner was used. Zinc ion concentration is about 5pp under the same conditions
m (the zinc ion concentration was measured by a pack test of Kyoritsu Institute of Physical and Chemical Research). This 5-fold diluted sterilized water exhibited an excellent bactericidal action against MRSA as compared with oxidation potential water having a pH of 2.6 and ORP of 1000 mV.

<Third Embodiment> Using the electrolytic ion generator of the first embodiment, 500 ml of acidic water having a pH of 2.7 was sampled,
When two 15 cm × 5 cm silver plates were immersed in this and ultrasonic waves were applied to the acidic water, the water temperature rose from 18 ° C. to 32 ° C. after 20 minutes. At that time, the silver ion concentration of the acidic water was about 0.2 ppm (the silver ion concentration was measured by the pack test of Kyoritsu Scientific Institute). The pH of the sterilizing action against MRSA of 5 times diluted water of this acidic water (sterilized water)
When compared with 2.6, ORP of 1000 mV oxidation potential water, a superior bactericidal action was observed as compared with oxidation potential water.

<Fourth Embodiment> The antiseptic water obtained by neutralizing the sterilizing water produced in the first embodiment to pH 7.0 with trietal amine was used by mixing it with a water-soluble cutting oil. ,
It was confirmed that its antiseptic property was superior to that of a water-soluble cutting oil using a conventional device that applies copper ions to the circulation line.

<Fifth Example> The antiseptic water obtained by neutralizing the sterilizing water produced in the third example to pH 7.0 with triarylamine was used by mixing it with a water-soluble cutting oil. ,
It was confirmed that its antiseptic property was superior to that of a water-soluble cutting oil using a conventional device that applies copper ions to the circulation line.

The electrolytic water purifier (electrolytic ion generator) used in each of the above-mentioned examples generally produces about 2.6 to 4.5 acidic water, in which oligodeny heavy metal is dissolved. The above shows a bactericidal property superior to the oxidation potential water, and naturally, even in the oxidation potential water (pH 2.7 or less), the oxidation potential water and the oxidation potential water in which a predetermined heavy metal is dissolved are , The latter is recognized as having superior bactericidal activity.

[0016]

INDUSTRIAL APPLICABILITY As described above, according to the present invention, acidic ionized water having a pH of 2.6 to 4.5 or pH produced by an electrolytic water purifier is used.
Conventionally, a method for producing sterilizing water in which a heavy acid such as gold, silver, copper, zinc, tin is dissolved in strong acidic oxidation potential water of 2.7 or less and a method for producing preservative water in which the sterilizing water is neutralized are used. Electrolyzed water purifier that produces alkaline ionized water mainly for beverages, and can effectively use acidic ionized water that is not normally used and is discarded. Excellent antiseptic water could be obtained at low cost and easily.

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Claims (3)

[Claims] 1. A pH of 2.6 to 4. produced by an electrolytic water purifier.
5. A method for producing sterilized water, which comprises dissolving heavy metal such as gold, silver, copper, zinc and tin in an acid ionized water of No. 2. A method for producing sterilizing water, which comprises dissolving an oligodenamic heavy metal such as gold, silver, copper, zinc, tin in water with strong acidic oxidation potential having a pH of 2.7 or less. 3. A pH of 2.4 to 4. produced by an electrolytic water purifier.
Characterized by neutralizing sterilized water obtained by dissolving oligodenamic heavy metal such as gold, silver, copper, zinc, tin in 5 acidic ion water or strong acidic oxidation potential water having a pH of 2.7 or less. Method for producing antiseptic water.