KR102042509B1 - Composition for cleaning heat sinks of heat exchanger and method for manufacturing the same - Google Patents

Abstract

The present invention relates to a heat exchanger heat sink cleaner composition and a manufacturing method thereof. More specifically, the present invention relates to a heat exchanger heat sink cleaner composition which comprises: benzotriazole; an antimicrobial agent comprising a covalent combination of at least one metal ion selected from copper ions and zinc ions, and peptidoglycan; a surfactant; and a residual amount consisting of distilled water, to provide excellent cleaning power and antibacterial power. The present invention also relates to a manufacturing method of the heat exchanger heat sink cleaner composition.

Description

Heat exchanger heat sink cleaning composition and its manufacturing method {COMPOSITION FOR CLEANING HEAT SINKS OF HEAT EXCHANGER AND METHOD FOR MANUFACTURING THE SAME}

The present invention relates to a heat exchanger heat sink cleaning composition and a method of manufacturing the same.

Heat exchangers are generally made of aluminum and have a complex structure in which heat sinks are arranged between the tubes at narrow intervals to maximize the surface area. Therefore, it has a structure that is easy to attach fine dust, organic materials, etc. according to the environment.

Fine dust, organic matter, etc. attached as described above greatly reduces the heat exchange efficiency, it should be removed periodically.

In general, as a method of removing such contaminants, a method of removing by physical friction and a method of using a surfactant is used. In another method, an acid is used to dissolve and remove contaminants formed on a metal surface. Is being used. In recent years, a removal method using a mixture of an acid and a cationic, nonionic and anionic surfactant has been used.

In particular, a strong base detergent is widely used for efficient removal of the contaminants. However, the strong base cleaning agent is excellent in the cleaning effect of the contaminants, but if the cleaning is not carried out completely after the removal of the contaminant residue is not preferable because it causes corrosion and damage to the exchanger. In addition, when the residue is left on the surface of the heat sink in the form of a solid, clogging between the fins of the exchanger to reduce the surface area causes a problem that the efficiency of the exchanger is lowered.

Heat exchangers are also devices that are exposed to long periods of humidity. Therefore, when the heat exchanger is contaminated, bacteria grow quickly. Therefore, it is also very important to kill the bacteria with the decontamination of the heat exchanger.

However, it is difficult to find a conventional cleaning composition with excellent antibacterial power as well as excellent cleaning power. Therefore, development of such cleaning composition is required.

Japanese Patent Application Laid-Open No. 2016-23877 (published: 2016.02.08)

The present invention has been made in order to solve the above problems of the prior art, and since it can neutrally remove the contaminants such as fine dust, organic substances, etc. attached to the heat sink while having a weak alkali, damage to the heat sink It is an object of the present invention to provide a heat exchanger heat sink cleaning composition and a method of manufacturing the same that can minimize heat treatment and improve heat exchange efficiency.

In addition, an object of the present invention is to provide a heat exchanger heat sink cleaning composition having excellent cleaning power and excellent antibacterial power and a method of manufacturing the same.

In addition, an object of the present invention is to provide a heat exchanger heat sink cleaning composition and a method for producing the same, wherein the bacteria present in the heat exchanger are killed and the effect of suppressing bacterial propagation after washing can be maintained.

The object of the present invention is not limited to the above-mentioned object, and other objects not mentioned above are clearly understood by those skilled in the art to which the present invention pertains (hereinafter referred to as 'normal technician') from the following description. Could be.

In order to achieve the above technical problem,

The present invention is benzotriazole; An antimicrobial agent comprising a covalent combination of at least one metal ion selected from copper ions and zinc ions with peptidoglycan; Surfactants; It provides a heat exchanger heat sink cleaning composition comprising; and distilled water.

The present invention also provides

Adding and dissolving benzotriazole in distilled water heated to a temperature of 50 to 70 ° C. in a first reactor and injecting it into a second reactor separate from the first reactor; Adjusting the temperature of the second reactor to 35 to 50 ° C. and adding distilled water and two or more premixed surfactants; Adding monoisopropyl amine to the second reactor; Adding an antimicrobial agent comprising a covalent combination of at least one metal ion selected from copper ions and zinc ions and peptidoglycan to the second reactor; And adding an ethoxylated-propoxylated alcohol.

The heat exchanger heat sink cleaning composition of the present invention can effectively remove contaminants such as fine dust and organic substances attached to the heat sink while having neutral or weak alkalinity, thereby minimizing damage to the heat sink and improving heat exchange efficiency. To provide.

In addition, the heat exchanger heat sink cleaning composition of the present invention provides a cleaning composition having excellent antibacterial power with excellent cleaning power.

In addition, according to the present invention, a heat exchanger heat sink cleaning composition is provided that kills the bacteria present in the heat exchanger through cleaning and maintains the effect of inhibiting bacterial propagation after cleaning.

In addition, according to the present invention, there is provided a heat exchanger heat sink cleaning composition capable of increasing the cleaning power by a combination of a specific nonionic and anionic surfactant.

The present invention also provides an effective method for preparing the detergent composition.

The effects of the present invention are not limited to those described above, and other effects not mentioned will be clearly recognized by those skilled in the art from the following description.

Hereinafter, the present invention will be described in more detail.

The present invention is benzotriazole; An antimicrobial agent comprising a covalent combination of at least one metal ion selected from copper ions and zinc ions with peptidoglycan; Surfactants; And a heat exchanger heat sink cleaning composition comprising distilled water.

The benzotriazole is used as an anticorrosion component to prevent corrosion to the metal base material by the cleaning composition. In addition, the passivating agent, antioxidant, evaporating agent, moisture stabilizer, UV resistance enhancer, antistatic agent and the like also performs.

The benzotriazole may be included in an amount of 0.1 wt% to 2 wt%, and more preferably 0.3 wt% to 1.5 wt%. When used in less than 0.1% by weight, the corrosion inhibitory effect of the heat sink metal base material is insufficient, on the contrary, when the content of the corrosion inhibitor exceeds 2% by weight, the solvent composition of the cleaning composition to the contaminants may be lowered and additional effects Can't expect it.

The antimicrobial agent comprising a covalent bond of at least one metal ion selected from copper ions and zinc ions and peptidoglycan is a covalent bond stabilized with at least one metal ion selected from copper ions and zinc ions and peptidoglycan. The antimicrobials have a broad antimicrobial spectrum and have long term persistence. It also has a deodorizing ability.

The antimicrobial agent may be included in an amount of 0.5 to 5 wt%, more preferably 0.9 to 2 wt%. When the antimicrobial agent is included in the above-described range, it is difficult to obtain the desired antimicrobial and deodorizing power, and when it exceeds the above-mentioned range, it is difficult to expect an increase in additional effects.

The surfactant is included to improve the cleaning range and to efficiently remove contaminants. The surfactant may be included in 0.5 to 7% by weight, and may be included in 2 to 4% by weight. When the surfactant is included in the above-mentioned range, it is difficult to obtain the desired detergency, and when it exceeds the above-mentioned range, it is difficult to expect an additional detergency in the present composition.

The surfactants include nonionic surfactants and anionic surfactants to increase the cleaning effect and extend the cleaning range. It is preferable that the said nonionic surfactant and anionic surfactant are contained in the weight ratio of 0.5-1.5: 0.5-1.5. When included in the above ratio, it is possible to widen the range of removable contaminants, and to remove contaminants more efficiently, thereby providing excellent cleaning power.

The nonionic surfactant is preferably selected from ethoxylated-propoxylated alcohol, alpha-dodecyl-omega-hydroxy-polyoxyethylene and coconut diethanolamide One or more types can be mentioned.

The anionic surfactant is preferably one or more selected from sodium dodecyl sulfate and sodium laureth sulfate.

Preferably, in particular, the inventors of the present invention disclose that the surfactants are ethoxylated-propoxylated alcohols, alpha-dodecyl-omega-hydroxy-polyoxyethylene, coconut diethanolamide, sodium dodecyl sulfate and sodium laurate sulfate It has been found that the inclusion of in a specific ratio is effective in increasing the cleaning effect and the cleaning range. Preferably, the weight ratio of coconut diethanolamide, ethoxylated-propoxylated alcohol, alpha-dodecyl-omega-hydroxy-polyoxyethylene in the nonionic surfactant is 1: (2-4): (5-7) Included as. Preferably, the weight ratio of coconut diethanolamide, ethoxylated-propoxylated alcohol, alpha-dodecyl-omega-hydroxy-polyoxyethylene in the nonionic surfactant is 1: 3: 6. Preferably, the weight ratio of sodium laurate sulfate and sodium dodecyl sulfate in the anionic surfactant may be approximately 1: 1, preferably 1: 0.8.

The detergent composition of the present invention may further include a thickener. Including the thickener increases the time the detergent composition remains in the heat exchanger during washing, thereby increasing the cleaning effect.

The thickener may be included in an amount of 0.05 to 0.15% by weight, and more preferably 0.08 to 0.12% by weight. When included in the above-mentioned range, the cleaning composition can be improved by having a suitable viscosity. However, if the above range is exceeded, the viscosity may be so high that the cleaning agent may remain in the heat exchanger.

The thickener includes oleyl alcohol ethoxylate added with 5 moles of ethylene oxide. In addition, coconut diethanolamide, which is included as a nonionic surfactant, may also function as a thickener in the present composition.

The detergent composition of the present invention may further include an emulsifier. Emulsifiers function to disperse and stabilize liquids that do not mix with each other for a period of time. The emulsifier may be included in 0.1 to 5% by weight, and may be included in 0.3 to 2% by weight.

As the emulsifier, the above-described oleyl alcohol ethoxylate may be included, and may include polyoxyethylene oleyl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ester. In addition, the emulsifier may include monoisopropyl amine (MIPA). The monoisopropyl amine not only functions as an emulsifier but also plays a role of a surfactant in the present composition, but also functions to neutralize fatty acids and sulfonic acid-based surfactants. It facilitates the manufacturing process of the present composition by performing the role of lowering the increased viscosity during the mass production of the premix (premix) of the above-described surfactant. This will be described later.

The cleaning composition of the present invention may further include an organic solvent. The organic solvent may be included in 1 to 15% by weight, more preferably 5 to 10% by weight.

The organic solvent performs a function of dissolving each component of the detergent described above. In particular, ethanol may be preferably used as the organic solvent.

 The detergent composition of the present invention may further comprise 0.05 to 0.5% by weight of fragrance. The fragrance may be included to provide a fresh aroma to the user upon use of the composition.

The detergent composition of the present invention may have a pH of 7 to 11. Preferably, the pH may be approximately 10. Currently, strong base detergents are widely used for efficient removal of contaminants. However, in the case of the strong base cleaner, the cleaning effect of the contaminants is excellent, but if the cleaning is not completely performed after the removal of the contaminants, the residue remains and causes corrosion and damage to the exchanger is not preferable. In addition, when the residue is left on the surface of the heat sink in the form of a solid, clogging between the fins of the exchanger to reduce the surface area causes a problem that the efficiency of the exchanger is lowered.

Therefore, the cleaning composition of the present invention minimizes the effect of effectively removing contaminants such as fine dust, organic substances, etc. attached to the heat sink and neutralizing damage or heat exchange efficiency while having neutral or weak alkalinity.

In addition, the heat exchanger cleaner composition manufacturing method according to another embodiment of the present invention includes the following steps.

(a) adding distilled water to the first reactor and heating to 50 to 70 ° C. to add and dissolve benzotriazole. The benzotriazole dissolved in step (a) is introduced into a second reactor provided separately from the first reactor. The benzotriazole is dissolved separately at high temperature to shorten the process time and improve the manufacturing efficiency.

(b) adjusting the temperature of the second reactor containing distilled water separately from the first reactor to 35 to 50 ° C. and adding a surfactant. The surfactant includes a nonionic surfactant and an anionic surfactant, and includes at least one of alpha-dodecyl-omega-hydroxy-polyoxyethylene and coconut diethanolamide as the nonionic surfactant, and is anionic As the surfactant, at least one of sodium dodecyl sulfate and sodium laureth sulfate is included.

(c) An organic solvent may be added between steps (a) and (b). The organic solvent includes ethanol.

In addition, (d) an emulsifier may be added to the second reactor. The emulsifier may include oleyl alcohol ethoxylate, monoisopropyl.

(e) adding an antimicrobial agent comprising a covalent bond of at least one metal ion selected from copper ions and zinc ions and peptidoglycan while maintaining the temperature of the second reactor at 35 to 50 ° C. .

(f) After step (e) further fragrance may be added.

(g) After step (f), further nonionic surfactant is added. The nonionic surfactant may preferably be an ethoxylated-propoxylated alcohol.

According to another embodiment of the present invention, when the pre-mixing the surfactant of the step (b) to use when subdivided in the preparation of the detergent composition to prepare a heat exchanger detergent composition that can reduce the simplified manufacturing process and process time A method is provided. That is, when two or more kinds of surfactants are premixed and then added during preparation of the cleaning composition, the production efficiency may be improved.

The method for preparing a heat exchanger heat sink cleaning composition according to another embodiment of the present invention includes (aa) adding distilled water to a first reactor and heating the temperature to 50 to 70 ° C. to add and dissolve benzotriazole. The benzotriazole dissolved in step (aa) is introduced into a second reactor provided separately from the first reactor. The benzotriazole is dissolved separately at high temperature to shorten the process time and improve the manufacturing efficiency.

In addition, the method for preparing the detergent composition includes (bb) adjusting the temperature of the second reactor containing distilled water separately from the first reactor to 35 to 50 ° C. and adding a surfactant system and a monoisopropyl amine. The surfactant system includes a nonionic surfactant and an anionic surfactant, and includes at least one of alpha-dodecyl-omega-hydroxy-polyoxyethylene and coconut diethanolamide as the nonionic surfactant, As the surfactant, at least one of sodium dodecyl sulfate and sodium laureth sulfate. The surfactant system is a premix of each component in a specific weight ratio, and may be prepared in advance to shorten the manufacturing time of the heat exchanger heat sink cleaning composition and to increase convenience. Since the premixed surfactant has a high viscosity, it is difficult to subdivide and the like, which makes the cleaning agent expensive. The addition of monoisopropyl amine improves the convenience of the process and at the same time serves to lower the viscosity as well as the role of surfactant.

In addition, prior to step (bb), an organic solvent may be added, and the organic solvent includes ethanol.

The heat exchanger heat sink cleaning composition manufacturing method, (cc) a covalent bond of one or more metal ions and peptidoglycan selected from copper ions and zinc ions while maintaining the temperature of the second reactor at 35 to 50 ℃ Adding an antimicrobial comprising; further comprises.

Between steps (bb) and (cc), further oleyl alcohol ethoxylate can be added for imparting emulsifier function and viscosity.

Optionally more fragrance can be added after step (cc), and finally ethoxylated-propoxylated alcohol is added.

The above description of the heat exchanger heat sink cleaning composition can be applied as it is to the manufacturing method. Therefore, duplicate content is omitted.

The detergent composition of the present invention can be applied to the manner of cleaning the heat exchanger, for example, by immersing the heat exchanger and circulating it under low pressure.

In addition, the cleaning composition of the present invention can be applied to the manner of cleaning the heat exchanger, for example, by spraying the cleaning agent on the heat exchanger.

Hereinafter, the present invention will be described in more detail with reference to Examples. However, the following examples are intended to illustrate the present invention more specifically, but the scope of the present invention is not limited by the following examples. The following examples can be appropriately modified and changed by those skilled in the art within the scope of the present invention.

Examples 1-4 and Comparative Examples 1-2: Preparation of Heat Exchanger Heat Sink Detergent Composition

The components of Table 1 and their contents according to the following method were mixed to prepare a heat exchanger heat sink cleaning composition.

First, distilled water was added to the first reactor, the temperature was raised to 60 ° C, and benzotriazole was added to dissolve it. The dissolved benzotriazole was introduced into a second reactor provided separately from the first reactor. Additional distilled water was added to the second reactor in accordance with the amount of each distilled water shown in Table 1. Surfactants (except ethoxylated-propoxylated-alcohol) were added and mixed while maintaining the temperature of the second reactor at 35 ° C. Then, the second reactor was mixed by adding an antimicrobial agent including a covalent compound of peptidoglycan and at least one metal ion selected from copper ions and zinc ions.

When ethanol was added, the dissolved benzotriazole was added to the second reactor while it was added to the second reactor. When monoisopropyl amine was added it was added after the surfactant was added. If ethoxylated-propoxylated-alcohol was added, it was added at the end of the composition preparation. When the flavor was added, it was added before the last step of the composition preparation or the addition of ethoxylated-propoxylated-alcohol.

Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 ethanol - 8.1 - 8.1 - 8.1 OA-5 - - 0.1 0.1 - 0.1 T2 0.9 0.9 0.9 0.9 - - Benzotriazole 0.9 0.9 0.9 0.9 1.5 - LA-7 - 1.2 1.2 1.2 - - CDEG - 0.2 0.2 0.2 - - SLS-30 - 0.8 0.8 0.8 - 0.8 SLES One - One One - One MIPA - 0.8 - 0.8 - - P - 0.2 0.2 0.2 - 0.2 D 0.6 - 0.6 0.6 0.6 - DI 96.6 86.9 94.1 85.2 97.9 89.8

(Unit: weight%)

OA-5: oleyl alcohol ethoxylate added with 5 moles of ethylene oxide

T2: Covalent bond of one or more metal ions selected from copper ions and zinc ions with peptidoglycan (manufactured by KOUKINMEISTER, TechnoWita-II)

LA-7: alpha-dodecyl-omega-hydroxy-polyoxyethylene

CDEG: Coconut Diethanolamide

SLS-30: Sodium Dodecyl Sulfate

SLES: Sodium Laureth Sulfate

MIPA: Monoisopropyl Amine

P: Incense

D: ethoxylated-propoxylated alcohol

DI: distilled water

[Test Example 1] Evaluation of cleaning power of the cleaning composition

The cleaning power of the detachable small heat exchanger was evaluated using the cleaning composition prepared in Examples and Preparation Examples. First, a heat exchanger was immersed for 30 minutes in each detergent composition prepared in Examples and Preparation Examples. After the contaminant-exchanged heat exchanger was removed from the cleaning composition and washed twice with water, the cleaning condition was visually confirmed and shown in Table 2 according to the following criteria.

<Evaluation Criteria>

◎: State where almost no contaminants are visible to the naked eye

○: a small amount of contaminants not removed

(Triangle | delta): The state which the pollutants which were not removed are seen in several places

×: almost no contaminants removed

Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 ethanol - 8.1 - 8.1 - 8.1 OA-5 - - 0.1 0.1 - 0.1 T2 0.9 0.9 0.9 0.9 - - Benzotriazole 0.9 0.9 0.9 0.9 1.5 - LA-7 - 1.2 1.2 1.2 - - CDEG - 0.2 0.2 0.2 - - SLS-30 - 0.8 0.8 0.8 - 0.8 SLES One - One One - One MIPA - 0.8 - 0.8 - - P - 0.2 0.2 0.2 - 0.2 D 0.6 - 0.6 0.6 0.6 - DI 96.6 86.9 94.1 85.2 97.9 89.8
Cleaning power
○ ○ ◎ ◎ △ △

As shown in Table 2, the cleaning composition of the present invention showed a very good cleaning power for the heat exchanger. In particular, the cleaning composition of Example 3 and the cleaning composition of Example 4 showed a better cleaning effect, and among these, the cleaning composition of Example 4 showed a better dirt removal effect.

Test Example 2 Evaluation of Antibacterial Activity of Cleaning Composition

The antimicrobial test of the detergent composition prepared in Example 4 was carried out.

Staphylococcus aureus (E. coli) and Escherichia coli (E. coli) were used as the test strains. The test results are shown in Tables 3 and 4 below.

Staphylococcus aureus Average value of viable cell number Immediately after inoculation After 18 hours of incubation Bacteriostatic activity % Reduction When the composition is processed 1.1 X 10 ⁵ <20 5.3 99.9 If the composition is not treated 1.1 X 10 ⁵ 4.4 X 10 ⁶ - -

Escherichia coli Average value of viable cell number Immediately after inoculation After 18 hours of incubation Bacteriostatic activity % Reduction When the composition is processed 1.1 X 10 ⁵ 2.6 X 10 ⁴ 3.1 99.9 If the composition is not treated 1.1 X 10 ⁵ 3.0 X 10 ⁷ - -

As shown in Table 3, the cleaning composition of Example 4 of the present invention showed 99.9% of the antibacterial activity against Staphylococcus aureus and Escherichia coli.

Test Example 3 Evaluation of Deodorant Performance of Cleaning Composition

Deodorant performance test of the detergent composition prepared in Example 4 was carried out.

The test method was performed by JTETC. Specifically, a 10 cm × 10 cm presentation sample was placed in a 5 L tetrabag, and 3 L of gas adjusted to an initial concentration was injected thereafter, and the gas concentration was measured by a detection tube after 2 hours. Ammonia 3La was used as a used detection tube, and the results are shown in Table 5 below.

Initial concentration 2 hours later Blank test 100.0 98.4 Composition 100.0 0.0 % Reduction - 99.9

As shown in Table 5, the detergent composition of Example 4 of the present invention exhibited a deodorizing ability of 99.9%.

Test Example 4 Evaluation of Safety of Cleaning Composition

The formaldehyde content of the detergent composition prepared in Example 4 was measured by the JIS L 1041 method, and the results are shown in Table 6 below.

Test Items Test result Test Methods Formaldehyde content, mg / kg Not detected (less than 10mg / kg) JIS L 1041 (Compliant)

As shown in Table 6, no formaldehyde was detected in the cleaning composition of Example 4 of the present invention.

Test Example 5 Evaluation of Corrosion Resistance of Cleaning Composition

After cleaning 10 times under the same conditions using the same cleaning composition as in Test Example 1, the degree of surface corrosion of the cleaned heat exchanger was confirmed using a scanning electron microscope (SEM). According to Table 7.

 <Evaluation Criteria>

○: no corrosion

(Triangle | delta): The state which five or less corroded parts are seen

X: The state in which more than 5 corroded parts were seen

Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 Corrosion protection ○ ○ ○ ○ △ ×

As shown in Table 7, the cleaning composition of the present invention was found not to cause surface corrosion of the heat exchanger. In contrast, in the cleaning composition of Comparative Example 2, more than normal heat exchanger surface corrosion was observed.

Test Example 6 Evaluation of Physical Properties of Cleaning Composition

Specific gravity, viscosity, and pH of the detergent composition of Example 4 were evaluated by the method as shown in Table 8 below, and the results are shown in Table 8 below.

Test Items unit Test value Test Methods Specific gravity (20/20 ℃) - 0.9830 KS M ISO 12185: 2003 Brookfield Viscosity
(A / 5/100, 15 ℃) Pas 0.0160 KS M ISO 2555: 2002 pH - 9.8 KS M 0011: 2013

Claims (11)

Benzotriazole;
An antimicrobial agent comprising a covalent combination of at least one metal ion selected from copper ions and zinc ions with peptidoglycan;
Surfactants; And
Heat exchanger heat sink cleaning composition comprising a residual amount of distilled water. The heat exchanger heat sink cleaning composition of claim 1, further comprising a thickener, wherein the thickener comprises coconut diethanolamide or oleyl alcohol ethoxylate. The heat exchanger heat sink cleaning composition of claim 1, further comprising an organic solvent, wherein the organic solvent comprises ethanol. The heat exchanger heat sink cleaning composition of claim 1, wherein the surfactant comprises a nonionic surfactant and an anionic surfactant. The heat exchanger heat sink cleaning composition of claim 4, wherein the nonionic surfactant and the anionic surfactant are included in a weight ratio of 0.5 to 1.5: 0.5 to 1.5. The method according to claim 4, wherein the nonionic surfactant is one selected from ethoxylated-propoxylated alcohols, alpha-dodecyl-omega-hydroxy-polyoxyethylene, coconut diethanolamide or the like Heat exchanger heat sink cleaning composition. The heat exchanger heat sink cleaning composition according to claim 4, wherein the anionic surfactant is one or a combination thereof selected from sodium dodecyl sulfate and sodium laureth sulfate. Regarding the total weight of the composition,
0.1-2% by weight of benzotriazole;
An antimicrobial agent comprising a covalent bond of peptidoglycan with at least one metal ion selected from 0.5 to 5% by weight of copper and zinc ions;
0.5 to 7 weight percent of a surfactant; And
Heat exchanger heat sink cleaning composition comprising a residual amount of distilled water. The heat exchanger heat sink cleaning composition according to any one of claims 1 to 8, wherein the pH of the cleaning composition is 7 to 11. Adding and dissolving benzotriazole in distilled water heated to a temperature of 50 to 70 ° C. in a first reactor and injecting it into a second reactor separate from the first reactor;
Adjusting the temperature of the second reactor to 35 to 50 ° C. and adding distilled water and two or more premixed surfactants;
Adding monoisopropyl amine to the second reactor;
Adding an antimicrobial agent comprising a covalent combination of at least one metal ion selected from copper ions and zinc ions and peptidoglycan to the second reactor; And
Mixing an ethoxylated-propoxylated alcohol in the second reactor;
Method for producing a heat exchanger heat sink cleaning composition comprising a. The method of claim 10, wherein the surfactant is selected from alpha-dodecyl-omega-hydroxy-polyoxyethylene, coconut diethanolamide, sodium dodecyl sulfate, and sodium laurate sulfate.