Dishwashing liquid capable of removing oil stains and pesticide residues and preparation method of dishwashing liquid

Abstract

The invention relates to a detergent capable of removing oil stains and pesticide residues and a preparation method of the detergent, and belongs to the technical field of daily chemical products. The detergent disclosed by the invention is prepared from the following raw materials in parts by weight: 0.4 to 1.7 parts of chelating agent, 250 to 450 parts of water, 70 to 150 parts of sodium alcohol ether sulphate, 20 to 60 parts of dodecyl glucoside, 10 to 40 parts of cocamidopropyl betaine, 10 to 55 parts of nonionic surfactant, 0.2 to 3.5 parts of plant essential oil, 0.2 to 5 parts of glycerol and 1 to 10 parts of sodium chloride. According to the present invention, the good oil stain removing and pesticide residue removing effects are achieved while the less components are utilized; due to the fact that the components are few, the residual risk of the detergent is lower, the risk of harms to human bodies is lower, and pollution to the environment is smaller; the invention provides a better choice for people who increasingly pursue safety and environmental protection, and better caters to the market demand and the national policy of environmental protection.

Description

Technical Field

[0001] The present invention relates to the technical field of daily chemical products, in particular to a detergent capable of removing grease and pesticide residues and a preparation method thereof. Background Art

[0002] Existing dishwashing liquids use synthetic fragrances, petroleum-based surfactants (such as lauric acid and its amides), and preservatives (organic small-molecule heterocyclic compounds) as their main ingredients. These ingredients, dissolved in water, create a dishwashing liquid with limited grease-removing capabilities. The use of synthetic fragrances is costly and has unknown long-term potential harm to the human body. Petroleum-based surfactants are difficult to degrade in the environment and the human body, leaving long-term residues there and adversely affecting both the environment and human health. Existing dishwashing liquids often only remove grease, lacking the ability to remove pesticide residues, resulting in limited performance. The addition of synthetic preservatives can also negatively impact both the environment and the human body.

[0003] Oranges and tangerines are abundant in southern my country, and millions of tons of tangerine and orange peels are disposed of as waste each year. This not only pollutes the environment but also increases the cost of processing these wastes. Utilizing essential oils extracted from tangerine and orange peels is of great significance for the reuse of waste. It turns waste into treasure while being natural and pollution-free, and reduces the cost of processing these wastes for relevant departments. Utilizing essential oils from tangerine peels (orange peels), a widely available source, as a natural flavoring additive for dishwashing liquids is of great significance. However, using tangerine peel essential oil to formulate a clear and transparent dishwashing liquid that meets national standards is very challenging. Water is the main component of dishwashing liquid, and the components of tangerine peel essential oil (including limonene, hesperidin, and citronellal) are organic and insoluble in water.

[0004] The prior art also discloses some cleaning products with decontamination and pesticide residue removal functions, such as the fruit and vegetable cleaning agent disclosed in the prior art CN112226299A. Although the fruit and vegetable cleaning agent has the pesticide residue removal function, it contains sodium dodecyl benzene sulfonate, so that the cleaning agent is more irritating and may damage the skin, and the performance in hard water is poorer and the calcium and magnesium ion resistance is weaker. For example, the microemulsion fruit and vegetable detergent disclosed in the prior art CN114517133A has excellent dual cleaning performance of physical adsorption removal and chemical dissolution removal for dirt, pesticide residues and heavy metals on the surface of fruits and vegetables, and also has a sterilization and bacteriostasis effect. However, the preparation process of the detergent involves multiple steps, including preparation of a microemulsion phase, preparation of an aqueous phase, emulsification, homogenization and other operations, and has strict requirements for temperature, stirring speed and other conditions. This increases the complexity and control difficulty of the production process, which may lead to an increase in production cost and a decrease in production efficiency. At the same time, the addition of preservatives may have potential adverse effects on human health. The addition of micro-nano shell powder may have adverse effects on some surface materials. For example, the tiny particles of the shell powder may scratch or wear some relatively fragile or smooth surfaces.

[0005] In view of the problems existing in the prior art, it is necessary to develop new detergent products with less impact on the human body and the environment and multiple functions. SUMMARY

[0006] The present application aims to overcome the shortcomings of the prior art and provide a detergent with oil stain removal and pesticide residue removal functions and a preparation method thereof.

[0007] The detergent of the present application has oil stain removal and pesticide residue removal functions, uses pure natural plant essential oil (such as orange peel essential oil) as the key fragrance source, has the characteristics of environmental protection and no pollution, uses natural molecule-based surfactants as the key ingredients, is easy to degrade, and has no harm to the environment and the human body under the premise of reasonable use, uses safe salt and glycerol combination as preservatives, has no harm to the human body under the premise of reasonable use, and has fewer ingredients and a simple preparation method. The detergent can be operated at room temperature. At the same time, due to the fewer ingredients, the detergent has lower residue risk, lower risk of harm to the human body, and less environmental pollution; it is more environmentally friendly and more green and environmentally friendly.

[0008] The present application uses carefully selected ingredients and regulates the proportion of these ingredients to make the water-insoluble plant essential oil into a clear solution.

[0009] The detergent of the present application can be edible and has high safety.

[0010] To achieve the above-mentioned purposes, the technical scheme adopted by the present application is as follows:

[0011] In a first aspect, the present invention provides a dishwashing liquid capable of removing grease and pesticide residues, comprising the following raw materials in parts by weight: 0.4-1.7 parts of a chelating agent, 250-450 parts of water, 70-150 parts of sodium alcohol polyoxyethylene ether sulfate (AES), 20-60 parts of lauryl glucoside (APG-1214), 10-40 parts of cocamidopropyl betaine (CAB-35), 10-55 parts of a nonionic surfactant, 0.2-3.5 parts of a plant essential oil, 0.2-5 parts of glycerin, and 1-10 parts of sodium chloride; the nonionic surfactant comprises coconut fatty acid diethanolamide and long-chain carboxylate polyoxyethylene-18. Preferably, the water is deionized water.

[0012] Through research, the inventors discovered that only dishwashing liquids that meet the above-mentioned ingredients can achieve good degreasing and pesticide residue removal while reducing the number of active ingredients. Adding ingredients, such as citric acid; or reducing ingredients, such as removing coconut fatty acid diethanolamide (6501); or replacing the ingredients of the present invention with other ingredients, such as replacing AES with α-olefin sulfonate (AOS), replacing 6501 with fatty alcohol polyoxyethylene ether-9 (AEO-9), or replacing part of AES with sodium lauryl sulfate, will reduce the effectiveness of the corresponding dishwashing liquid. At the same time, the content of each ingredient must also be within the specific range of the present invention. If the content of the ingredient exceeds the range of the present invention, the effectiveness of the corresponding dishwashing liquid will also be reduced.

[0013] As a preferred embodiment of the dishwashing liquid of the present invention, the dishwashing liquid is composed of the following raw materials in parts by weight: 0.8-1.7 parts of a chelating agent, 400-450 parts of water, 85-150 parts of sodium alcohol polyoxyethylene ether sulfate (AES), 27-60 parts of dodecyl glucoside (APG-1214), 36-40 parts of cocamidopropyl betaine (CAB-35), 36-55 parts of a nonionic surfactant, 3-3.5 parts of plant essential oil, 3-5 parts of glycerin, and 4-10 parts of sodium chloride. Within this range, the dishwashing liquid has better cleaning effects and pesticide residue removal.

[0014] As a preferred embodiment of the dishwashing liquid of the present invention, the chelating agent includes disodium ethylenediaminetetraacetic acid, sodium metasilicate, nitrilotriacetic acid, diethylenetriaminepentaacetic acid, gluconic acid or diethylenetriaminepenta(methylenephosphonic acid).

[0015] As a preferred embodiment of the dishwashing liquid of the present invention, the dishwashing liquid is composed of the following raw materials in parts by weight: 0.8 parts of a chelating agent, 400 parts of water, 85 parts of sodium alcohol polyoxyethylene ether sulfate (AES), 27.9 parts of lauryl glucoside (APG-1214), 36.9 parts of cocamidopropyl betaine (CAB-35), 36 parts of a nonionic surfactant, 3 parts of plant essential oil, 3 parts of glycerin, and 4 parts of sodium chloride. At this content, the dishwashing liquid is more effective in removing dirt and pesticide residues.

[0016] As a preferred embodiment of the dishwashing liquid of the present invention, the dishwashing liquid is composed of the following raw materials in parts by weight: 0.4-1.7 parts of a chelating agent, 250-450 parts of water, 70-150 parts of sodium alcohol polyoxyethylene ether sulfate (AES), 20-60 parts of dodecyl glucoside (APG-1214), 10-40 parts of cocamidopropyl betaine (CAB-35), 5-20 parts of coconut fatty acid diethanolamide (6501), 5-35 parts of long-chain carboxylate polyoxyethylene-18 (LMEO-18), 0.2-3.5 parts of plant essential oil, 0.2-5 parts of glycerin and 1-10 parts of sodium chloride.

[0017] As a preferred embodiment of the dishwashing liquid of the present invention, the dishwashing liquid is composed of the following raw materials in parts by weight: 0.8-1.7 parts of a chelating agent, 400-450 parts of water, 85-150 parts of sodium fatty alcohol polyoxyethylene ether sulfate (AES), 27-60 parts of dodecyl glucoside (APG-1214), 36-40 parts of cocamidopropyl betaine (CAB-35), 11-20 parts of coconut fatty acid diethanolamide (6501), 25-35 parts of long-chain carboxylate polyoxyethylene-18 (LMEO-18), 3-3.5 parts of plant essential oil, 3-5 parts of glycerin and 4-10 parts of sodium chloride.

[0018] As a preferred embodiment of the dishwashing liquid of the present invention, the dishwashing liquid is composed of the following raw materials in parts by weight: 0.8 parts of chelating agent, 400 parts of water, 85 parts of sodium fatty alcohol polyoxyethylene ether sulfate (AES), 27.9 parts of lauryl glucoside (APG-1214), 36.9 parts of cocamidopropyl betaine (CAB-35), 11 parts of coconut fatty acid diethanolamide (6501), 25 parts of long-chain carboxylate polyoxyethylene-18 (LMEO-18), 3 parts of plant essential oil, 3 parts of glycerin and 4 parts of sodium chloride.

[0019] As a preferred embodiment of the dishwashing liquid of the present invention, the plant essential oil includes tangerine peel essential oil or orange peel essential oil; the fatty alcohol polyoxyethylene ether sulfate (AES) includes: C8-10 alcohol polyoxyethylene ether sulfate, dodecyl polyoxyethylene ether sulfate (sodium lauryl polyoxyethylene ether sulfate) or C14-16 alcohol polyoxyethylene ether sulfate.

[0020] As a preferred embodiment of the dishwashing liquid of the present invention, the sodium fatty alcohol polyoxyethylene ether sulfate (AES) is sodium lauryl polyoxyethylene ether sulfate.

[0021] In a second aspect, the present invention provides a method for preparing the above-mentioned detergent capable of removing grease and pesticide residues, comprising the following steps:

[0022] S1. The chelating agent is fully dissolved in water to obtain a chelating agent aqueous solution.

[0023] S2. Add fatty alcohol polyoxyethylene ether sulfate (AES), lauryl glucoside (APG-1214), cocamidopropyl betaine (CAB-35), and a nonionic surfactant to the chelating agent aqueous solution in sequence, fully dissolve them, and mix them to obtain a mixed solution.

[0024] S3, adding plant essential oil and glycerin to the mixed solution, mixing evenly, and finally adding sodium chloride and fully dissolving it to obtain the detergent.

[0025] The preparation method of the dishwashing liquid of the present invention does not simply involve directly mixing the various ingredients, but rather adding them in a specific order.

[0026] As a preferred embodiment of the preparation method of the present invention, step S2 is: adding fatty alcohol polyoxyethylene ether sulfate sodium (AES), lauryl glucoside (APG-1214), cocamidopropyl betaine (CAB-35), coconut fatty acid diethanolamide (6501) and long-chain carboxylate polyoxyethylene-18 (LMEO-18) to the chelating agent aqueous solution in sequence, fully dissolving and mixing to obtain a mixed solution.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The present invention uses fewer ingredients to prepare dishwashing liquid, uses specific ingredients and controls the specific content of the ingredients to turn water-insoluble plant essential oils into clear solutions, achieving good degreasing and pesticide residue removal effects while using fewer ingredients. The dishwashing liquid of the present invention uses pure natural plant essential oils (such as orange peel essential oil) as a key fragrance source, which is environmentally friendly and pollution-free; uses surfactants based on natural molecules as key ingredients, which are easy to degrade; uses a safe combination of salt and glycerol as a preservative, which is harmless to the human body; the dishwashing liquid of the present invention has fewer ingredients and a simple preparation method. At the same time, due to the small number of ingredients, the risk of dishwashing liquid residue is lower, the risk of harm to the human body is lower, and the pollution to the environment is less; it is more environmentally friendly and more environmentally friendly. The dishwashing liquid of the present invention provides a better choice for people who are increasingly pursuing safety and environmental protection, and better caters to market demand and the national policy of environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is the appearance of the dishwashing liquid according to Example 1 of the present invention. DETAILED DESCRIPTION

[0030] In order to better illustrate the purpose, technical solutions and advantages of the present invention, the present invention will be further described below in conjunction with specific embodiments.

[0031] Unless otherwise specified, other materials and reagents used in the examples can be obtained from commercial sources.

[0032] In the present invention, AES is sodium fatty alcohol polyoxyethylene ether sulfate; APG-1214 is lauryl glucoside; CAB-35 is cocamidopropyl betaine; 6501 is coconut fatty acid diethanolamide; and LMEO-18 is long-chain carboxylate polyoxyethylene-18.

[0033] The components of the detergents of Examples 1-5 and Comparative Examples 1-8 are shown in Table 1 below, wherein the components of Comparative Example 8 are the same as those of Example 1.

[0034] Table 1

[0035]

[0036] Disodium EDTA can be used as the chelating agent, and can also be sodium metasilicate, nitrilotriacetic acid, diethylenetriaminepentaacetic acid, gluconic acid or diethylenetriaminepenta(methylenephosphonic acid).

[0037] AES can also be C8-10 alcohol polyoxyethylene ether sodium sulfate or C14-16 alcohol polyoxyethylene ether sodium sulfate.

[0038] The preparation method of the dishwashing liquid of Example 1-5 and Comparative Example 1-2 comprises the following steps:

[0039] (1) At room temperature, disodium EDTA is first added to a container, followed by deionized water, and stirred thoroughly to ensure that the disodium EDTA is completely dissolved, to obtain a disodium EDTA aqueous solution.

[0040] (2) Fatty alcohol polyoxyethylene ether sulfate (AES), lauryl glucoside (APG-1214), cocamidopropyl betaine (CAB-35), coconut fatty acid diethanolamide (6501) and long-chain carboxylate polyoxyethylene-18 (LMEO-18) were added to the disodium ethylenediaminetetraacetic acid aqueous solution in sequence, and the mixture was stirred thoroughly to ensure that all components were completely dissolved to obtain a mixed solution.

[0041] (3) adding plant essential oil (tangerine peel essential oil or orange peel essential oil) and glycerin to the mixed solution, mixing evenly, and finally adding sodium chloride, and continuously stirring until the sodium chloride is completely dissolved, thereby obtaining the detergent.

[0042] Sodium chloride must be added last, otherwise stratification will occur.

[0043] Comparative Example 3: A method for preparing dishwashing liquid (AOS replacing AES) comprises the following steps:

[0044] (1) Same as above-mentioned embodiments 1-5.

[0045] (2) α-olefin sulfonate (AOS), lauryl glucoside (APG-1214), cocamidopropyl betaine (CAB-35), coconut fatty acid diethanolamide (6501) and long-chain carboxylate polyoxyethylene-18 (LMEO-18) were added to the disodium ethylenediaminetetraacetic acid aqueous solution in sequence, and the mixture was stirred thoroughly to ensure that the components were completely dissolved to obtain a mixed solution.

[0046] (3) Same as above-mentioned embodiments 1-5.

[0047] Comparative Example 4: A method for preparing dishwashing liquid (AEO-9 replacing 6501) comprises the following steps:

[0048] (1) Same as above-mentioned embodiments 1-5.

[0049] (2) Sodium alcohol polyoxyethylene ether sulfate (AES), lauryl glucoside (APG-1214), cocamidopropyl betaine (CAB-35), fatty alcohol polyoxyethylene ether-9 (AEO-9) and long-chain carboxylate polyoxyethylene-18 (LMEO-18) were added to the disodium ethylenediaminetetraacetic acid aqueous solution in sequence, and the mixture was stirred thoroughly to ensure that the components were completely dissolved to obtain a mixed solution.

[0050] (3) Same as above-mentioned embodiments 1-5.

[0051] The preparation method of comparative example 5 dishwashing liquid (lacking 6501) comprises the following steps:

[0052] (1) Same as above-mentioned embodiments 1-5.

[0053] (2) Fatty alcohol polyoxyethylene ether sulfate (AES), lauryl glucoside (APG-1214), cocamidopropyl betaine (CAB-35) and long-chain carboxylate polyoxyethylene-18 (LMEO-18) were added to the disodium ethylenediaminetetraacetic acid aqueous solution in sequence, and the mixture was stirred thoroughly to ensure that all components were completely dissolved to obtain a mixed solution.

[0054] (3) Same as above-mentioned embodiments 1-5.

[0055] Comparative Example 6: A method for preparing dishwashing liquid (adding citric acid) comprises the following steps:

[0056] (1) Same as above-mentioned embodiments 1-5.

[0057] (2) Fatty alcohol polyoxyethylene ether sulfate (AES), lauryl glucoside (APG-1214), cocamidopropyl betaine (CAB-35), coconut fatty acid diethanolamide (6501), long-chain carboxylate polyoxyethylene-18 (LMEO-18) and citric acid were added to the disodium ethylenediaminetetraacetic acid aqueous solution in sequence, and the mixture was stirred thoroughly to ensure that all components were completely dissolved to obtain a mixed solution.

[0058] (3) Same as above-mentioned embodiments 1-5.

[0059] Comparative Example 7: A method for preparing dishwashing liquid (dodecyl sulfonic acid replacing part of AES) comprises the following steps:

[0060] (1) Same as above-mentioned embodiments 1-5.

[0061] (2) Sodium dodecyl sulfate (SDS), sodium fatty alcohol polyoxyethylene ether sulfate (AES), lauryl glucoside (APG-1214), cocamidopropyl betaine (CAB-35), coconut fatty acid diethanolamide (6501) and long-chain carboxylate polyoxyethylene-18 (LMEO-18) were added to the disodium ethylenediaminetetraacetic acid aqueous solution in sequence, and the mixture was stirred thoroughly to ensure that all components were completely dissolved to obtain a mixed solution.

[0062] (3) Same as above-mentioned embodiments 1-5.

[0063] Comparative Example 8: A method for preparing dishwashing liquid, comprising the following steps:

[0064] In a container, disodium EDTA, deionized water, sodium alcohol polyoxyethylene ether sulfate (AES), lauryl glucoside (APG-1214), cocamidopropyl betaine (CAB-35), coconut fatty acid diethanolamide (6501), long-chain carboxylate polyoxyethylene-18 (LMEO-18), orange peel essential oil, glycerin and sodium chloride are added simultaneously, and the mixture is stirred thoroughly to ensure that all components are completely dissolved to obtain the dishwashing liquid.

[0065] Test Example 1

[0066] The physical properties, stability, active ingredients, detergency, etc. of the dishwashing liquids of Examples 1-5 and Comparative Examples 1-8 were measured. Those that met the standard requirements were qualified.

[0067] (1) Appearance, odor, stability, and total active ingredient content determination

[0068] According to the methods described in GB / T 13173-2021 "Test Methods for Surfactant Detergents", the appearance (Chapter 24), odor (Chapter 23), stability (Chapter 22), and total active ingredient content (Chapter 7, 7.4.1A Method) were tested.

[0069] The appearance standard requirement is: liquid, paste product: no stratification, uniform body without obvious suspended particles or precipitation (except for products with uniformly suspended particles); solid product: uniform color, no obvious mechanical impurities and stains.

[0070] The odor standard requirement is: no odor.

[0071] Stability, heat resistance (40±2) ℃, 24h, the standard requirement is: after recovery to room temperature, no stratification, no precipitation, no odor and discoloration, transparent product is not turbid;

[0072] Stability, cold resistance (-5±2) ℃, 24h, the standard requirement is: after recovery to room temperature, no stratification, no precipitation, no discoloration, transparent product is not turbid.

[0073] The total active content standard requirement is: ≥15%.

[0074] (2) pH value determination

[0075] The pH value is determined according to the method recorded in GB / T 6368-2008 “Determination of pH value of surfactant aqueous solution-potentiometric method”, and the dishwashing liquid is configured into a 1% aqueous solution, and the pH value is determined at 25℃. The standard requirement is that the pH is 4.0-10.5.

[0076] (3) Determination of detergency

[0077] The detergency is determined according to the method recorded in GB / T 9985-2022 “Dishwashing detergent for hand washing”, the oil removal rate is determined according to the oil removal rate method in Appendix A thereof, and the artificial dishwashing number is determined according to the foam position method in Appendix A thereof. The standard requirement is greater than or equal to the standard dishwashing detergent.

[0078] The appearance and odor results of the dishwashing liquids of Examples 1-5 and Comparative Examples 1-8 are shown in Table 2 below, wherein the appearance of the dishwashing liquid of Example 1 is as shown in Figure 1

[0079] Table 2

[0080] Appearance odor Example 1 Liquid homogeneous body, no stratification, no obvious suspended matter or precipitation No odor Example 2 Liquid homogeneous body, no stratification, no obvious suspended matter or precipitation No odor Example 3 Liquid homogeneous body, no stratification, no obvious suspended matter or precipitation No odor Example 4 Liquid homogeneous body, no stratification, no obvious suspended matter or precipitation No odor Example 5 Liquid homogeneous body, no stratification, no obvious suspended matter or precipitation No odor Comparative Example 1 Liquid homogeneous body, no stratification, no obvious suspended matter or precipitation No odor Comparative Example 2 Liquid homogeneous body, no stratification, no obvious suspended matter or precipitation No odor Comparative Example 3 Liquid homogeneous body, no stratification, no obvious suspended matter or precipitation No odor Comparative Example 4 Liquid homogeneous body, no stratification, no obvious suspended matter or precipitation No odor Comparative Example 5 Liquid homogeneous body, no stratification, no obvious suspended matter or precipitation No odor Comparative Example 6 Liquid homogeneous body, no stratification, no obvious suspended matter or precipitation No odor Comparative Example 7 Liquid product, the solution is turbid No odor Comparative Example 8 Liquid product, the solution is turbid No odor

[0081] The stability results of the dishwashing liquids of Examples 1-5 and Comparative Examples 1-8 are shown in Table 3 below,

[0082] Table 3

[0083]

[0084] The active, pH value, and detergency results of the dishwashing liquids of Examples 1-5 and Comparative Examples 1-8 are shown in Table 4 below,​

[0085] Table 4

[0086]

[0087]

[0088] The results in Table 2 and Table 3 show that the detergent in the embodiment is in a liquid uniform body, without stratification, obvious suspended matter or precipitation, no odor, and good heat and cold resistance and stability.

[0089] The results in Table 4 show that the pH of the dishwashing liquid in the examples was 8.4-10.2, which meets the standard requirement of a pH range of 4.0-10.5. The total active ingredient content was 15%-25%, meeting the standard requirement of ≥15%. The oil removal rate was 53.2%-56.18%, and the number of manual dishwashing washes was 3.9-5, both significantly higher than those of standard dishwashing detergents. The test results demonstrate that while the total active ingredient content is less than the standard, the cleaning effect can still be very satisfactory.

[0090] The total effective matter content of the dishwashing liquids in Comparative Examples 1 and 3 is 6% and 2%, respectively, which do not meet the standard requirement of ≥15%, and the total effective matter content does not meet the requirement. The dishwashing liquid in Comparative Example 1 has a lower number of manual dishwashing than the standard dishwashing detergent, and its detergency does not meet the requirements. The only difference between Comparative Example 1 and Example 1 is that the content of some ingredients is lower than the range of the embodiment, and the only difference between Comparative Example 3 and Example 1 is that the anionic surfactant AES replaces AOS. As a result, the corresponding dishwashing liquids do not meet the standards, and the detergency is significantly reduced, indicating that the ingredients of the dishwashing liquid of the present invention can have better detergency only within a specific range. The anionic surfactant AES cannot be replaced by other anionic surfactants.

[0091] The pH of the detergent in Comparative Example 2 is 12.8, which does not meet the standard requirement that the pH should be between 4.0 and 10.5, and the pH is unqualified.

[0092] The detergent in Comparative Example 4 differs from Example 1 only in that the nonionic surfactant 6501 is replaced with AEO-9. The corresponding detergent exhibits significantly reduced detergency. The oil removal rate of the detergent in Comparative Example 4 is 1.89% higher than that of a standard dishwashing detergent, while the oil removal rate of the detergent in Example 1 is 47.70% higher than that of a standard dishwashing detergent. The detergent in Example 1 exhibits significantly better detergency than the detergent in Comparative Example 4, indicating that the nonionic surfactant 6501 of the present invention cannot be replaced with other nonionic surfactants.

[0093] Compared with the detergent of Example 1, the total effective matter content and detergency of Comparative Example 5 are both reduced. The only difference between Comparative Example 5 and Example 1 is the reduction of coconut fatty acid diethanolamide (6501), indicating that coconut fatty acid diethanolamide is an indispensable key component of the detergent composition of the present invention.

[0094] The detergent of Comparative Example 6 has a lower detergency than the detergent of Example 1. The only difference between Comparative Example 6 and Example 1 is the addition of citric acid; this comparison result shows that the addition of citric acid has some effect on the detergency of the sample.

[0095] The detergent of Comparative Example 7 had a turbid solution. This comparison result shows that sodium lauryl sulfonate cannot replace sodium salt of alkyl ether sulfate at this ratio.

[0096] The detergent of Comparative Example 8 was turbid. This comparison result shows that the detergent must be made in strict accordance with the operating steps.

[0097] Test Example 2

[0098] Safety indicators such as heavy metals, organic matter, and microorganisms of the dishwashing liquids of Examples 1-5 were measured.

[0099] Physical and chemical indicators (including total arsenic, heavy metals, methanol, formaldehyde, and 1,4-dioxane) and microbial limits (total colony count and coliform bacteria) are measured according to the methods described in GB 14930.1-2022, "National Food Safety Standard for Detergents" (Class A). Products that meet the standard are considered qualified.

[0100] The total arsenic, heavy metal, methanol, formaldehyde, 1,4-dioxane, total bacterial count and coliform bacteria test results of the detergents of Examples 1-5 were all qualified. The test results corresponding to Example 1 are shown in Table 5 below.

[0101] Table 5

[0102]

[0103] Test Example 3

[0104] The pesticide removal effects of the detergents of Examples 1-5 were measured.

[0105] The pesticide removal effect was measured according to the method described in GB / T 24691-2022 "Fruit and Vegetable Cleaners" (Appendix A). The standard requirement is: the residual pesticide removal rate ratio (P) value ≥ 4. Products that meet the standard requirements are qualified.

[0106] The pesticide removal effects of the detergents of Examples 1-5 are shown in Table 6 below.

[0107] Table 6

[0108]

[0109]

[0110] The results in Table 6 show that the detergent of the present invention has a removal rate ratio (P) of 4.8 to 5 for propoxur and a removal rate ratio (P) of 4.6 to 4.8 for cypermethrin, meeting the national standard for a removal rate ratio (P) of ≥ 4 for residual pesticides. The results indicate that the detergent has a good effect on pesticide removal.

[0111] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A detergent with the function of removing grease and pesticide residues, characterized in that: The invention is composed of the following raw materials in parts by weight: 0.4-1.7 parts of a chelating agent, 250-450 parts of water, 70-150 parts of sodium fatty alcohol polyoxyethylene ether sulfate, 20-60 parts of lauryl glucoside, 10-40 parts of cocamidopropyl betaine, 10-55 parts of a nonionic surfactant, 0.2-3.5 parts of plant essential oil, 0.2-5 parts of glycerin and 1-10 parts of sodium chloride; The nonionic surfactant consists of coconut fatty acid diethanolamide and long-chain carboxylate polyoxyethylene-18.

2. The detergent according to claim 1, wherein The dishwashing liquid is composed of the following raw materials in parts by weight: 0.4-1.7 parts of a chelating agent, 250-450 parts of water, 70-150 parts of sodium fatty alcohol polyoxyethylene ether sulfate, 20-60 parts of lauryl glucoside, 10-40 parts of cocamidopropyl betaine, 5-20 parts of coconut fatty acid diethanolamide, 5-35 parts of long-chain carboxylate polyoxyethylene 18, 0.2-3.5 parts of plant essential oil, 0.2-5 parts of glycerin and 1-10 parts of sodium chloride.

3. The detergent according to claim 1, wherein The dishwashing liquid is composed of the following raw materials in parts by weight: 0.8-1.7 parts of a chelating agent, 400-450 parts of water, 85-150 parts of sodium fatty alcohol polyoxyethylene ether sulfate, 27-60 parts of lauryl glucoside, 36-40 parts of cocamidopropyl betaine, 36-55 parts of a nonionic surfactant, 3-3.5 parts of plant essential oil, 3-5 parts of glycerin and 4-10 parts of sodium chloride.

4. The detergent according to claim 2, wherein The dishwashing liquid is composed of the following raw materials in parts by weight: 0.8-1.7 parts of a chelating agent, 400-450 parts of water, 85-150 parts of sodium fatty alcohol polyoxyethylene ether sulfate, 27-60 parts of lauryl glucoside, 36-40 parts of cocamidopropyl betaine, 11-20 parts of coconut fatty acid diethanolamide, 25-35 parts of long-chain carboxylate polyoxyethylene-18, 3-3.5 parts of plant essential oil, 3-5 parts of glycerin and 4-10 parts of sodium chloride.

5. The detergent according to any one of claims 1 to 4, characterized in that The chelating agent includes disodium ethylenediaminetetraacetic acid, sodium metasilicate, nitrilotriacetic acid, diethylenetriaminepentaacetic acid, gluconic acid or diethylenetriaminepenta(methylenephosphonic acid).

6. The detergent according to any one of claims 1 to 4, characterized in that The plant essential oil includes tangerine peel essential oil or orange peel essential oil.

7. The detergent according to any one of claims 1 to 4, characterized in that The fatty alcohol polyoxyethylene ether sodium sulfate includes: C8-10 alcohol polyoxyethylene ether sodium sulfate, lauryl polyoxyethylene ether sodium sulfate or C14-16 alcohol polyoxyethylene ether sodium sulfate.

8. The method for preparing the detergent according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, the chelating agent is fully dissolved in water to obtain a chelating agent aqueous solution; S2. Adding fatty alcohol polyoxyethylene ether sodium sulfate, lauryl glucoside, cocamidopropyl betaine, and a nonionic surfactant to the chelating agent aqueous solution in sequence, fully dissolving them, and mixing them to obtain a mixed solution; S3, adding plant essential oil and glycerin to the mixed solution, mixing evenly, and finally adding sodium chloride and fully dissolving it to obtain the detergent.

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