A kitchen detergent, its preparation method and application

Abstract

The application provides a kitchen detergent as well as a preparation method and application thereof, and belongs to the technical field of detergents. In the application, disodium ethylenediaminetetraacetate and 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetracarboxylic acid are used as polyacid ligand materials, can be combined with calcium and magnesium ions in water, reduce the hardness of water, make the surfactant better combined with oil stains, emulsify the oil stains, so that better oil removal effect is realized, and the oil stains can be easily washed clean with water. Sodium fatty alcohol polyoxyethylene ether sulfate, alpha-alkenyl sodium sulfonate and coconut oil fatty acid diethanolamine are used as composite emulsifiers, can form a coordinated effect with anionic surfactant sodium dodecyl benzene sulfonate and non-ionic surfactant fatty alcohol polyoxyethylene ether, compared with the use of only anionic / non-ionic surfactant, the addition of the composite emulsifier is more conducive to promoting the emulsification of different kinds of oil molecules, forming oil-in-water micellar molecules, so that efficient removal of oil stains can be realized.

Description

Technical Field

[0001] This invention relates to the field of detergent technology, and in particular to a kitchen detergent, its preparation method, and its application. Background Technology

[0002] As living standards continue to improve, people have higher and higher requirements for home environment and hygiene, and have also put forward higher standards and requirements for kitchen cleaning agents. As a very important part of the modern home environment, the kitchen is prone to grease buildup on range hoods, gas stoves, floors and walls. This not only affects the cleanliness and aesthetics of the kitchen environment, but also easily breeds bacteria and produces odors, which is harmful to human health.

[0003] During cooking, oleic acid glycerides and unsaturated fats in cooking oil undergo oxidation and polymerization reactions at prolonged high temperatures, forming a highly viscous and tough "paint-like" polymer. Some cooking oil, after vaporization, condensation, or even carbonization, adheres to solid surfaces, forming a thin film of dirt with strong adhesion and toughness. In addition, tiny dust and fine particles floating in the living environment adhere to and deposit on the grease, further increasing the difficulty of cleaning.

[0004] Most existing detergents are single anionic or nonionic surfactants, which are difficult to effectively remove kitchen grease. Summary of the Invention

[0005] In view of this, the purpose of this invention is to provide a kitchen detergent, its preparation method, and its application. The kitchen detergent provided by this invention has a strong removal effect on kitchen grease.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0007] This invention provides a kitchen detergent, comprising the following components per liter of detergent:

[0008]

[0009]

[0010] The concentration of the NaOH solution is 3–5 mol / L.

[0011] Preferably, it also includes 15-40g of NaCl.

[0012] This invention provides a method for preparing the above-mentioned kitchen detergent, comprising the following steps:

[0013] The first portion of water, disodium ethylenediaminetetraacetate, and 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetracarboxylic acid were mixed to obtain the first mixture.

[0014] The first mixture is mixed with a first portion of NaOH solution, dodecylbenzene sulfonic acid, sodium fatty alcohol polyoxyethylene ether sulfate, sodium α-alkenyl sulfonate, coconut oil fatty acid diethanolamine, and fatty alcohol polyoxyethylene ether to obtain a second mixture.

[0015] The second mixture was brought to a final volume using a second portion of water, and the pH of the liquid was adjusted to neutral using a second portion of NaOH solution to obtain a kitchen detergent.

[0016] Preferably, after adjusting the pH of the liquid to neutral after volume adjustment, NaCl is also added.

[0017] Preferably, the rates of the first mixing and the second mixing are independently 300 to 600 rpm.

[0018] Preferably, the volume of the first portion of water is 72-86% of the total water volume.

[0019] Preferably, the volume of the first portion of NaOH solution is 20-62.5% of the total volume of NaOH solution.

[0020] This invention provides the application of the above-mentioned kitchen detergent in cleaning kitchen walls, range hoods, stoves, or dishes.

[0021] This invention provides a kitchen detergent, comprising the following components per 1L of detergent: 0.5–1.5g of disodium ethylenediaminetetraacetate; 1–2g of 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetracarboxylic acid; 12–25g of dodecylbenzenesulfonic acid; 70–90g of sodium fatty alcohol polyoxyethylene ether sulfate; 20–40g of sodium α-alkenyl sulfonate; 15–25g of coconut oil fatty acid diethanolamine; 5–10g of fatty alcohol polyoxyethylene ether; 8–15mL of NaOH solution; and the balance being water; wherein the concentration of the NaOH solution is 3–5 mol / L. In this invention, the disodium ethylenediaminetetraacetate (EDTA) and 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetracarboxylic acid (DOTA) are used as polyacid ligand materials. These materials can bind with calcium and magnesium ions in water, reduce water hardness, and enable surfactants to better bind with oil stains, emulsify them, thereby achieving a better degreasing effect and making it easier to rinse the oil stains clean with water. In this invention, sodium dodecylbenzenesulfonate is an anionic surfactant, and fatty alcohol polyoxyethylene ether (AEO-9) is a nonionic surfactant. Sodium fatty alcohol polyoxyethylene ether sulfate (AES), sodium α-alkenyl sulfonate (AOS), and coconut oil fatty acid diethanolamine are used as composite emulsifiers. They can form a synergistic effect with the anionic surfactant sodium dodecylbenzenesulfonate and the nonionic surfactant fatty alcohol polyoxyethylene ether. Compared with using only anionic / nonionic surfactants, the addition of composite emulsifiers is more conducive to promoting the emulsification of different (saturated / unsaturated fatty acid) oil molecules, forming water-in-oil micelle molecules. This enables the efficient removal of oil stains from kitchen walls, range hoods, stoves, and dishes, with a removal rate of ≥99.6% for kitchen oil stains.

[0022] Meanwhile, the kitchen detergent provided by this invention is inexpensive, easy to clean, leaves little residue, and has no toxic side effects. Attached Figure Description

[0023] Figure 1 These are before-and-after photos of the dishes being washed in Example 1;

[0024] Figure 2 These are before-and-after comparison images of the range hood before and after cleaning in Example 2. Detailed Implementation

[0025] This invention provides a kitchen detergent, comprising the following components per liter of detergent:

[0026]

[0027] The concentration of the NaOH solution is 3–5 mol / L.

[0028] Unless otherwise specified, all raw materials used in this invention are commercially available.

[0029] Based on 1L of detergent, the kitchen detergent provided by this invention includes 0.5-1.5g of disodium ethylenediaminetetraacetate, preferably 0.8-1.2g, and more preferably 1g. In this invention, the function of the disodium ethylenediaminetetraacetate is to chelate metal ions in water, reduce water hardness, and enable the surfactant to better bind with oil stains, emulsify them, thereby achieving a better degreasing effect and making it easier to rinse off the oil stains with clean water.

[0030] Based on 1L of detergent, the kitchen detergent provided by this invention includes 1-2g of 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetracarboxylic acid, preferably 1.2-1.8g, more preferably 1.5g. In this invention, the function of the 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetracarboxylic acid is to chelate metal ions in water, reduce water hardness, and enable the surfactant to better bind with oil stains, emulsify them, thereby achieving a better degreasing effect and making it easier to rinse off the oil stains with clean water.

[0031] Based on 1L of detergent, the kitchen detergent provided by this invention includes 12-25g of dodecylbenzenesulfonic acid, preferably 15-22g, and more preferably 18-20g. In this invention, the dodecylbenzenesulfonic acid is an anionic surfactant that can form a synergistic effect with fatty alcohol polyoxyethylene ether, promoting the emulsification of different types of oil molecules.

[0032] Based on 1L of detergent, the kitchen detergent provided by this invention includes 70-90g of sodium fatty alcohol polyoxyethylene ether sulfate, preferably 75-85g, and more preferably 80g. In this invention, the sodium fatty alcohol polyoxyethylene ether sulfate plays a role in emulsification and stain removal.

[0033] Based on 1L of detergent, the kitchen detergent provided by this invention includes 20-40g of sodium α-alkenylsulfonate, preferably 25-35g, and more preferably 30g. In this invention, the sodium α-alkenylsulfonate serves to emulsify oil molecules.

[0034] Based on 1L of detergent, the kitchen detergent provided by this invention includes 15-25g of coconut oil fatty acid diethanolamine, preferably 18-22g, and more preferably 20g. In this invention, the coconut oil fatty acid diethanolamine serves to emulsify oil molecules.

[0035] Based on 1L of detergent, the kitchen detergent provided by this invention includes 5-10g of fatty alcohol polyoxyethylene ether, preferably 6-8g. In this invention, the fatty alcohol polyoxyethylene ether is a nonionic surfactant that can form a synergistic effect with dodecylbenzene sulfonic acid to promote the emulsification of different types of oil molecules.

[0036] Based on 1L of detergent, the kitchen detergent provided by this invention comprises 8-15mL of NaOH solution, preferably 10-12mL. In this invention, the concentration of the NaOH solution is preferably 3-5mol / L, more preferably 4mol / L. In this invention, the NaOH solution serves to adjust the pH value of the detergent.

[0037] Based on 1L of detergent, the kitchen detergent provided by the present invention preferably includes 15-40g of NaCl, more preferably 20-30g. In the present invention, the NaCl acts as a thickener.

[0038] The kitchen detergent provided by this invention, calculated per 1L of detergent, includes the remainder water. In this invention, the water is preferably pure water or deionized water; this invention uses water to bring the above-mentioned raw materials to a final volume of 1L.

[0039] The kitchen detergent provided by this invention utilizes a variety of emulsifiers, which can form a synergistic effect with anionic surfactants sodium dodecylbenzenesulfonate and fatty alcohol polyoxyethylene ether. Compared with using only anionic / nonionic surfactants, the addition of emulsifiers is more conducive to promoting the emulsification of different (saturated / unsaturated fatty acid) oil molecules, forming water-in-oil micelle molecules, thereby achieving efficient removal of oil stains.

[0040] This invention provides a method for preparing the above-mentioned kitchen detergent, comprising the following steps:

[0041] The first portion of water, disodium ethylenediaminetetraacetate, and 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetracarboxylic acid were mixed to obtain the first mixture.

[0042] The first mixture is mixed with a first portion of NaOH solution, dodecylbenzene sulfonic acid, sodium fatty alcohol polyoxyethylene ether sulfate, sodium α-alkenyl sulfonate, coconut oil fatty acid diethanolamine, and fatty alcohol polyoxyethylene ether to obtain a second mixture.

[0043] The second mixture was brought to a final volume using a second portion of water, and the pH of the liquid was adjusted to neutral using a second portion of NaOH solution to obtain a kitchen detergent.

[0044] In this invention, a first mixture is formed by mixing a first portion of water, disodium ethylenediaminetetraacetate, and 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetracarboxylic acid to obtain a first mixture. In this invention, the volume of the first portion of water is preferably 72-86% of the total water volume, more preferably 80%. In this invention, the first mixing method is preferably stirring, and the mixing rate is preferably 300-600 rpm, more preferably 500 rpm.

[0045] After obtaining the first mixture, the present invention further mixes the first mixture with a first portion of NaOH solution, dodecylbenzenesulfonic acid, sodium fatty alcohol polyoxyethylene ether sulfate, sodium α-alkenyl sulfonate, coconut oil fatty acid diethanolamine, and fatty alcohol polyoxyethylene ether to obtain a second mixture. In the present invention, the preferred method of adding the second mixture is as follows: first, add NaOH solution to the first mixture, then sequentially add dodecylbenzenesulfonic acid, sodium fatty alcohol polyoxyethylene ether sulfate, sodium α-alkenyl sulfonate, coconut oil fatty acid diethanolamine, and fatty alcohol polyoxyethylene ether.

[0046] In this invention, the sodium fatty alcohol polyoxyethylene ether sulfate is preferably dissolved in hot water before being added; the temperature of the hot water is preferably 50°C. In this invention, the hot water used to dissolve the sodium fatty alcohol polyoxyethylene ether sulfate is included in the total amount of water used in the raw materials.

[0047] In this invention, the volume of the first portion of NaOH solution is preferably 20-62.5% of the total volume of the NaOH solution. In this invention, the NaOH solution is added in two stages. The first addition aims to improve solubility, but there is a possibility of adding too much NaOH. The second addition aims to further precisely adjust and control the pH of the solution after the overall solution is prepared.

[0048] In this invention, the second mixing method is preferably stirring, and the mixing rate is preferably 300-600 rpm, more preferably 500 rpm.

[0049] After obtaining the second mixture, the present invention uses a second part of water to make up the volume of the second mixture, and uses a second part of NaOH solution to adjust the pH value of the liquid to neutral, thereby obtaining a kitchen detergent. In the present invention, the second part of water is the remainder of water, and the second part of NaOH solution is the remainder of NaOH solution.

[0050] In this invention, after adjusting the pH of the liquid to neutral after volume adjustment, the invention also preferably includes the addition of NaCl.

[0051] This invention provides the application of the above-mentioned kitchen detergent in cleaning kitchen walls, range hoods, stoves, or dishes.

[0052] The application method provided by this invention can directly clean kitchen walls, range hoods, and stove surfaces without the need for vigorous wiping, achieving efficient removal of oil stains and making it more convenient.

[0053] The following detailed description of the kitchen detergent, its preparation method, and its application provided by the present invention, with reference to specific embodiments, should not be construed as limiting the scope of protection of the present invention.

[0054] Example 1

[0055] The raw materials and preparation methods of kitchen detergents are as follows:

[0056] Taking the preparation of 1L of detergent as an example:

[0057] 1. Add 1g of disodium ethylenediaminetetraacetate (EDTA) and 1g of 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetracarboxylic acid (DOTA) to 800mL of deionized water;

[0058] 2. Add 3 mL of 4 mol / L NaOH solution;

[0059] 3. Add 18g of dodecylbenzenesulfonic acid;

[0060] 4. Dissolve 75g of sodium fatty alcohol polyoxyethylene ether sulfate (AES) in water at 50°C and add it to the above solution;

[0061] 5. Add sodium α-olefin sulfonate, AOS 29g;

[0062] 6. Add 19g of coconut oil fatty acid diethanolamine;

[0063] 7. Add fatty alcohol polyoxyethylene ether AEO-96g;

[0064] 8. Dilute to 1L with pure water;

[0065] 9. Adjust the pH to neutral using a 4 mol / L NaOH solution;

[0066] 10. Add 33g of thickener NaCl.

[0067] The above mixing was carried out under stirring conditions, with the stirring speed being 500 rpm.

[0068] Test Example 1

[0069] 1. Prepare an oily plate: Spread 5 mL of oil onto the plate to form an oily block, and you will have an oily plate.

[0070] 2. The kitchen detergent prepared in Example 1 is placed in a spray bottle for later use.

[0071] 3. Test Evaluation: First, spray the detergent onto the surface of the plate (for a 20cm diameter plate, spray 3-4 times), then gently scrub the surface of the plate with a brush to mix the detergent with the oil and emulsify the oil (in this test example, use a plastic brush to rotate 5 times clockwise). Then rinse the oil stains on the plate with water until they are clean.

[0072] 4. Observe the changes in oil stains before and after the test to evaluate the detergent's effectiveness in cleaning oil stains on the plates. See the images of the plates before and after cleaning. Figure 1 As shown.

[0073] This invention allows for the direct cleaning of oil-stained plates with a detergent solution, eliminating the need for vigorous scrubbing and achieving highly efficient oil removal, making it much simpler. Testing shows an oil removal rate of >99.6%.

[0074] In this invention, the oil removal rate ω is calculated according to Equation 1:

[0075] ω=(m1-m2) / (m1-m0); Equation 1;

[0076] In Formula 1: m0 — mass of the glass slide before it was stained, g;

[0077] m1 — Mass of the glass slide after being stained, in grams;

[0078] m2 — Mass of the glass slide after washing, in grams.

[0079] Example 2

[0080] The raw materials and preparation methods of kitchen detergents are as follows:

[0081] Taking the preparation of 1L of detergent as an example:

[0082] 1. Add 1.4g of disodium ethylenediaminetetraacetate (EDTA) and 1.8g of 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetracarboxylic acid (DOTA) to 800mL of deionized water;

[0083] 2. Add 4 mL of 4 mol / L NaOH solution;

[0084] 3. Add 20g of dodecylbenzenesulfonic acid;

[0085] 4. Dissolve 85g of sodium fatty alcohol polyoxyethylene ether sulfate (AES) in water at 50°C and add it to the above solution;

[0086] 5. Add sodium α-olefin sulfonate, AOS 35g;

[0087] 6. Add 22g of coconut oil fatty acid diethanolamine;

[0088] 7. Add fatty alcohol polyoxyethylene ether AEO-98g;

[0089] 8. Dilute to 1L with pure water;

[0090] 9. Adjust the pH to neutral using a 4 mol / L NaOH solution;

[0091] 10. Add 33g of thickener NaCl.

[0092] The above mixing was carried out under stirring conditions, with the stirring speed being 500 rpm.

[0093] Test Example 2

[0094] 1. The kitchen detergent prepared in Example 2 is placed in a spray bottle for later use.

[0095] 2. Clean the surface of the wall-mounted range hood: Spray the detergent evenly on the surface of the range hood, let it stand for 30 seconds, then wipe the surface of the range hood with a brush until it forms an emulsion or foam, and then let it stand for 30 seconds.

[0096] 3. Use clean water or a cloth to clean the surface of the range hood to remove the emulsified grease.

[0097] 4. Observe the changes in oil stains before and after the test, and evaluate the cleaning effect of the detergent on the surface of the range hood. Photos of the range hood before and after cleaning are shown below. Figure 2 As shown.

[0098] The testing method of this invention directly cleans the surface of the range hood with a detergent solution, achieving highly efficient removal of grease without the need for vigorous wiping, making it more convenient. Testing showed an grease removal rate of >99.9%.

[0099] Comparative Example 1

[0100] Taking the preparation of 1L of detergent as an example:

[0101] 1. Add 0.95g of disodium ethylenediaminetetraacetate (EDTA) to 800mL of deionized water. No 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetracarboxylic acid was added.

[0102] 2. Add 3.2 mL of 4 mol / L NaOH solution;

[0103] 3. Add 17.6g of dodecylbenzenesulfonic acid;

[0104] 4. Dissolve 76g of sodium fatty alcohol polyoxyethylene ether sulfate (AES) in water at 50°C and add it to the above solution;

[0105] 5. Add sodium α-olefin sulfonate, AOS 28.3g;

[0106] 6. Add 18.5g of coconut oil fatty acid diethanolamine;

[0107] 7. Add 6.5g of fatty alcohol polyoxyethylene ether AEO-9;

[0108] 8. Dilute to 1L with pure water;

[0109] 9. Adjust the pH to neutral using a 4 mol / L NaOH solution;

[0110] 10. Add 32g of thickener NaCl.

[0111] The above mixing was carried out under stirring conditions, with the stirring speed being 450 rpm.

[0112] The stain removal rate was tested and found to be 99.2%.

[0113] The physicochemical tests on the product and the tests on the removed oily wastewater solution showed that the removal of 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetracarboxylic acid resulted in poor complexation ability of metal ions in the water, high water hardness, and difficulty in emulsifying the oil to form a water-oil mixture. Therefore, the cleaning effect was lower than that of the product.

[0114] Comparative Example 2

[0115] Taking the preparation of 1L of detergent as an example:

[0116] 1. Add 1g of disodium ethylenediaminetetraacetate (EDTA) and 1g of 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetracarboxylic acid (DOTA) to 800mL of deionized water;

[0117] 2. Add 3 mL of 4 mol / L NaOH solution;

[0118] 3. Add 18g of dodecylbenzenesulfonic acid;

[0119] 4. Dissolve 77g of sodium fatty alcohol polyoxyethylene ether sulfate (AES) in water at 50°C and add it to the above solution;

[0120] 5. Add sodium α-olefin sulfonate, AOS 30g;

[0121] 6. Add 20g of coconut oil fatty acid diethanolamine;

[0122] 7. Dilute to 1L with pure water;

[0123] 8. Adjust the pH to neutral using a 4 mol / L NaOH solution;

[0124] 9. Add 35g of thickener NaCl.

[0125] The above mixing was carried out under stirring conditions, with the stirring speed being 450 rpm.

[0126] The stain removal rate was tested to be 79.2%.

[0127] Physicochemical tests on the product and tests on the removed oily wastewater solution showed that the problem stemmed from the inability to encapsulate the oil stains after removing the fatty alcohol polyoxyethylene ether, making it difficult to form an oil-in-water structure. This resulted in some oil stains remaining on the surface with hydrophobic groups, making them difficult to dissolve in water and thus difficult to remove effectively during cleaning. Therefore, the cleaning effect was significantly lower compared to the product.

[0128] Comparative Example 3

[0129] Taking the preparation of 1L of detergent as an example:

[0130] 1. Add 1g of disodium ethylenediaminetetraacetate (EDTA) and 1g of 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetracarboxylic acid (DOTA) to 800mL of deionized water;

[0131] 2. Add 2.5 mL of 4 mol / L NaOH solution;

[0132] 3. Add 19g of dodecylbenzenesulfonic acid;

[0133] 4. Dissolve 75g of sodium fatty alcohol polyoxyethylene ether sulfate (AES) in water at 50°C and add it to the above solution;

[0134] 5. Add 17g of coconut oil fatty acid diethanolamine;

[0135] 6. Add fatty alcohol polyoxyethylene ether AEO-95g;

[0136] 7. Dilute to 1L with pure water;

[0137] 8. Adjust the pH to neutral using a 4 mol / L NaOH solution;

[0138] 9. Add 37g of thickener NaCl.

[0139] The above mixing was carried out under stirring conditions, with the stirring speed being 530 rpm.

[0140] The stain removal rate was tested and found to be 84.2%.

[0141] Physicochemical tests on the product and tests on the removed oily wastewater solution showed that this was due to the reduced efficiency of the surfactant in encapsulating oil stains after the removal of the emulsifier sodium α-olefin sulfonate. This resulted in the inability to efficiently form an oil-in-water structure, leaving some hydrophobic groups on the oil stain surface exposed. These groups exhibited significant hydrophobicity upon contact with water, making it difficult to dissolve effectively and remove the oil during cleaning. Therefore, the cleaning effect was significantly lower compared to the product.

[0142] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A kitchen detergent, characterized in that, 1L of detergent consists of the following components: Disodium ethylenediaminetetraacetate 0.5~1.5g; 1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetracarboxylic acid 1~2g; Dodecylbenzenesulfonic acid 12~25g; 70-90g of sodium fatty alcohol polyoxyethylene ether sulfate; 20-40g of sodium α-alkenyl sulfonate; Coconut oil fatty acid diethanolamine 15~25g; 5-10g of fatty alcohol polyoxyethylene ether; 8-15 mL of NaOH solution; It also includes 15-40g of NaCl; The remaining water; The concentration of the NaOH solution is 3~5 mol / L; The method for preparing the kitchen detergent includes the following steps: The first portion of water, disodium ethylenediaminetetraacetate, and 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetracarboxylic acid were mixed to obtain the first mixture. The first mixture is mixed with a first portion of NaOH solution, dodecylbenzene sulfonic acid, sodium fatty alcohol polyoxyethylene ether sulfate, sodium α-alkenyl sulfonate, coconut oil fatty acid diethanolamine, and fatty alcohol polyoxyethylene ether to obtain a second mixture. The second mixture is brought to a final volume using a second part of water, and the pH of the liquid is adjusted to neutral using a second part of NaOH solution. After adjusting the pH of the liquid to neutral, NaCl is added to obtain the kitchen detergent. The first portion of water accounts for 72-86% of the total water volume, and the second portion of water is the remaining water. The volume of the first portion of NaOH solution is 20-62.5% of the total volume of NaOH solution, and the second portion of NaOH solution is the remaining NaOH solution.

2. The method for preparing the kitchen detergent according to claim 1, comprising the following steps: The first portion of water, disodium ethylenediaminetetraacetate, and 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetracarboxylic acid were mixed to obtain the first mixture. The first mixture is mixed with a first portion of NaOH solution, dodecylbenzene sulfonic acid, sodium fatty alcohol polyoxyethylene ether sulfate, sodium α-alkenyl sulfonate, coconut oil fatty acid diethanolamine, and fatty alcohol polyoxyethylene ether to obtain a second mixture. The second mixture is brought to a final volume using a second part of water, and the pH of the liquid is adjusted to neutral using a second part of NaOH solution. After adjusting the pH of the liquid to neutral, NaCl is added to obtain the kitchen detergent. The first portion of water accounts for 72-86% of the total water volume, and the second portion of water is the remaining water. The volume of the first portion of NaOH solution is 20-62.5% of the total volume of NaOH solution, and the second portion of NaOH solution is the remaining NaOH solution.

3. The preparation method according to claim 2, characterized in that, The rates of the first and second mixing are independently 300-600 rpm.

4. The application of the kitchen detergent according to claim 1 or the kitchen detergent prepared by the preparation method according to claim 2 or 3 in cleaning kitchen walls, range hoods, stoves or plates.

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