Green, environment-friendly, efficient and mild detergent as well as preparation method and application thereof
By using a combination of mild surfactants and auxiliary surfactants, a green, environmentally friendly, highly efficient, and mild detergent was prepared, solving the problem of existing detergents being highly irritating to infants' skin and achieving both high-efficiency stain removal and environmentally friendly washing effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-23
- Publication Date
- 2026-04-07
AI Technical Summary
Existing detergents are inadequate in terms of cleaning power and safety, especially in terms of their high irritation to the skin of infants and children, and they are difficult to achieve efficient and environmentally friendly cleaning results.
A green, environmentally friendly, highly efficient, and mild detergent with good biodegradability and low toxicity was prepared by using a combination of mild surfactants and auxiliary surfactants, including methyl glucoside, polyoxyethylene sorbitan fatty acid ester, and polyoxyethylene alkyl ether sodium sulfate, combined with plant extracts and vitamins.
It achieves highly efficient stain removal, good and stable foaming performance, is gentle on the skin and non-irritating, suitable for infants and young children, and has broad application prospects.
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Abstract
Description
Technical Field
[0001] This invention relates to the field of detergent technology, specifically to a green, environmentally friendly, efficient, and mild detergent, its preparation method, and its application. Background Technology
[0002] The main component of detergent is nonionic surfactant, whose structure includes a hydrophilic end and a lipophilic end. The lipophilic end binds to the stain, and then the stain is separated through physical movement (such as hand rubbing or machine movement). At the same time, the surfactant reduces the surface tension of water, allowing water to reach the surface and enabling the active ingredients to work effectively. This results in strong cleaning power and the ability to penetrate deep into the stain for a more thorough cleaning.
[0003] Research on soap-based systems began in Europe and America in the 1920s. Initially, it focused on the separation and purification of vegetable and animal oils and the synthesis of fatty acid oils. Later, research progressed to the optimization of soap-based system preparation, the solubility of fatty acid salts, the phase behavior of soap-based systems, and various apparent characteristics and performance properties, thus promoting the development of soap-based systems. In fatty acid salt systems, with increasing mass fraction of fatty acid salts, the ordered aggregates formed by fatty acid salt molecules include micelles (spherical, rod-shaped, etc.), liquid crystals (hexagonal, cubic, and lamellar), or vesicles. Commonly used fatty acid salts (with more than 10 carbon atoms) have low solubility in water due to the hydrophobic effect of their hydrophobic groups, affecting the application of soap-based systems. Therefore, additives such as polyols, surfactants, and emulsifiers are needed to improve the stability of the system. Polyols have a dispersing effect on appropriate amounts of fatty acid salts, reducing the formation of soap lumps during the saponification reaction and affecting the solubility of fatty acid salts in water. In the current consumer market, liquid soaps based on fatty acid salt systems are widely favored by consumers because of their good foaming properties, rich and delicate foam, thorough cleaning, easy rinsing, and ability to leave the skin feeling clean and refreshed. Summary of the Invention
[0004] The purpose of this invention is to propose a green, environmentally friendly, efficient, and mild detergent, its preparation method, and its application. It has good foaming effect, stable chemical properties, is mild and has low toxicity, excellent washing effect, and good biodegradability. The addition of additives makes the detergent feel smoother and has a more appealing fragrance, and it has broad application prospects.
[0005] The technical solution of this invention is implemented as follows: This invention provides a green, environmentally friendly, highly efficient, and mild detergent, comprising the following raw materials in parts by weight: 10-20 parts of mild surfactant, 5-8 parts of auxiliary surfactant composition, 1-2 parts of plant extract, 0.5-1 part of vitamin C, 0.1-0.3 parts of vitamin E, 0.2-0.5 parts of vitamin B5, 0.005-0.007 parts of fragrance, 0.1-0.3 parts of disodium EDTA, and 60-80 parts of deionized water; the structural formula of the mild surfactant is shown in Formula I:
[0006] Formula I; Wherein, R is an alkyl chain of C6-C12.
[0007] As a further improvement of the present invention, the auxiliary surfactant composition comprises: methyl glucoside, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene (3-4) alkyl ether sodium sulfate, and sodium lauryl soap, in a mass ratio of 3-5:1-3:2-4:4-6.
[0008] As a further improvement of the present invention, the preparation method of the mild surfactant is as follows: S1. Glucose and 6-aminohexanoic acid were reacted to prepare intermediate 1, with the following structure: ; S2. Intermediate 1 is reacted with a haloalkane to prepare intermediate 2, with the following structure: ; S3. Intermediate 2 was reacted with alanine to obtain intermediate 3, with the following structure: ; S4. Intermediate 3 and 1,3-propanesulfonic acid lactone were reacted to obtain the product.
[0009] As a further improvement of the present invention, the molar ratio of glucose and 6-aminocaproic acid in step S1 is 1.2-1.5:1.
[0010] As a further improvement of the present invention, the molar ratio of intermediate 1 and haloalkane in step S2 is 1-1.1:1, and the haloalkane is selected from at least one of 1-chlorohexane, 1-chloroheptane, 1-chlorooctane, 1-chlorononane, 1-chlorodecane, 1-chloroundecane, 1-chlorododecane, 1-bromohexane, 1-bromoheptane, 1-bromooctane, 1-bromononane, 1-bromodecane, 1-bromoundecane, and 1-bromododecane.
[0011] As a further improvement of the present invention, the molar ratio of intermediate 2 and alanine in step S3 is 1-1.1:1.
[0012] As a further improvement of the present invention, the molar ratio of intermediate 3 and 1,3-propanesulfonic acid lactone in step S4 is 1:1-1.1.
[0013] As a further improvement of the present invention, the plant extract is aloe vera extract and / or seaweed extract; the fragrance is selected from at least one of strawberry fragrance, green apple fragrance, red cherry fragrance, red grape fragrance, and lime fragrance.
[0014] This invention further protects a method for preparing the above-mentioned green, environmentally friendly, efficient, and mild detergent, comprising the following steps: adding a mild surfactant and an auxiliary surfactant composition to deionized water in proportion, adding plant extracts, vitamin C, vitamin E, and vitamin B5, heating to 40-50°C, stirring to dissolve, adding fragrance and disodium EDTA, cooling to room temperature, filtering, and discharging.
[0015] This invention further protects the application of the above-mentioned green, environmentally friendly, efficient, and mild detergent in infant and child care products.
[0016] The present invention has the following beneficial effects: The auxiliary surfactant composition of this invention uses methyl glucoside and polyoxyethylene sorbitan fatty acid esters as raw materials, which are low-irritant surfactants and partially anionic surfactants that produce abundant foam but are less irritating. They also have low oral toxicity, preventing accidental ingestion by infants and young children. Furthermore, the polyoxyethylene (3-4) alkyl ether sodium sulfate has a mild cleaning effect, is non-irritating to the skin and eyes, and has a lower surfactant content than similar adult products.
[0017] The mild surfactant prepared by this invention, due to its amino acid and glycosyl structure, exhibits excellent biodegradability and low toxicity, is gentle and non-irritating to skin and eyes, and is easily biodegradable. The glycosyl group contains multiple hydroxyl groups, resulting in stronger oleophobic and hydrophilic properties compared to traditional polyoxyethylene ether surfactants. In oil-water systems, it demonstrates better interfacial chemistry, lower surface energy, and reduced surface tension, while also exhibiting superior foaming performance. Furthermore, the mild surfactant prepared by this invention, due to the presence of both glycosyl and sulfonic acid groups, possesses stronger resistance to hard water because the glycosyl group can react with Ca... 2+The metal ions are complexed to form water-soluble complex ions, and the reaction products of sulfonic acid groups and calcium and magnesium ions also have good water solubility. Furthermore, the mild surfactant of this invention, due to its glycosyl and quaternary ammonium salt structure, possesses advantages such as good antibacterial activity. The sulfonic acid group structure of this invention gives the mild surfactant advantages such as rapid foaming, stable foam, and excellent water solubility. It also exhibits good acid and alkali resistance, chemical stability, and, when combined with auxiliary surfactants, better synergistic effects, excellent detergent performance, and good compatibility with additives. Moreover, the synthesis conditions of this mild surfactant are mild, and the yield is relatively high.
[0018] The green, environmentally friendly, efficient, and mild detergent prepared by this invention has good foaming effect, stable chemical properties, mildness and low toxicity, excellent washing effect, and good biodegradability. The addition of additives makes the detergent feel smoother and the fragrance more appealing, and it has broad application prospects. Detailed Implementation
[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0020] Preparation Example 1: Mild Surfactant The preparation method is as follows: S1. 0.13 mol glucose and 0.1 mol 6-aminohexanoic acid were added to 300 mL ethanol, followed by 0.5 g p-toluenesulfonic acid. The mixture was heated to 60 °C and stirred for 3 h. After cooling to room temperature, the mixture was washed with acetone, recrystallized from diethyl ether, filtered, washed, and dried to obtain intermediate 1 with a yield of 72%. ESI-MS calculated value: C 11 H 22 NO7(M+H) + 280.29, measured value: 280.3, NMR result: 1 HNMR (300MHz, MeOD) δ11.0 (br, 1H), 4.82 (d, 1H), 3.4-3.7 (m, 6H), 2.59 (t, 2H), 2.21 (t, 2H), 2.0 (br, 5H), 1.58 (m, 2H), 1.44 (m, 2H).
[0021]
[0022] S2. 0.105 mol of intermediate 1 and 0.1 mol of 1-bromohexane were added to 200 mL of ethanol, heated to 65 °C, and the reaction was kept neutral with 10% NaOH solution. The mixture was stirred for 3 h, and the ethanol and water were removed under reduced pressure. The mixture was recrystallized from diethyl ether, filtered, washed, and dried to obtain intermediate 2 with a yield of 85%. ESI-MS calculated value: C 17 H 34 NO7(M+H) + 364.45, Measured value: 364.5, NMR result: 1 H NMR (300MHz, MeOD) δ11.5 (br, 1H), 4.75 (d, 1H), 3.32-3.64 (m, 6H), 2.51 (t, 2H), 2.13 ( t, 2H), 1.85 (br, 4H), 1.52 (m, 2H), 1.37-1.40 (m, 6H), 1.27-1.29 (m, 6H), 0.92 (t, 3H).
[0023]
[0024] S3. 0.105 mol of intermediate 2 was added to 300 mL of water, followed by 0.1 mol of N-hydroxysuccinimide and 0.1 mol of 1-ethyl-(3-dimethylaminopropyl)carbodiimide. The mixture was stirred and activated at 0 °C for 30 min. Then, 0.1 mol of alanine was added, and the mixture was stirred and reacted at room temperature for 12 h. The mixture was washed with acetone, recrystallized from diethyl ether, filtered, washed, and dried to obtain intermediate 3, with a yield of 81%. ESI-MS calculated value: C 20 H 39 N₂O₈(M+H) + 435.52, Measured value: 435.5, NMR result: 1 H NMR (300MHz, MeOD) δ11.2 (br, 1H), 8.0 (br, 1H), 4.83 (d, 1H), 4.64 (s, 1H), 3.34-3.71 (m, 6H), 2.54 ( t, 2H), 2.19 (t, 2H), 1.89 (br, 4H), 1.55 (m, 2H), 1.39-1.45 (m, 9H), 1.29-1.31 (m, 6H), 0.96 (t, 3H).
[0025]
[0026] S4. 0.1 mol of intermediate 3 and 0.105 mol of 1,3-propanesulfonic acid lactone were added to 300 mL of acetonitrile, heated to 45 °C, and stirred for 10 h. The mixture was washed with acetone, recrystallized from diethyl ether / methanol (volume ratio 10:1), filtered, washed, and dried to obtain the product with a yield of 69%. ESI-MS calculated value: C 23 H 45 N2O 11 S(M+H) + 557.67, Measured value: 557.7, NMR result: 1 H NMR (300MHz, MeOD) δ11.0 (br, 1H), 8.5 (br, 1H), 5.76 (d, 1H), 4.69 (s, 1H), 3.56-3.78 (m, 6H), 3.24-3 .27 (m, 6H), 2.18 (t, 2H), 2.0 (br, 4H), 1.7-1.8 (m, 6H), 1.55 (m, 2H), 1.3-1.41 (m, 11H), 0.96 (t, 3H).
[0027]
[0028] Preparation Example 2 The difference from Preparation Example 1 is that 1-bromohexane is replaced with 1-bromooctane.
[0029] Preparation Example 3 The difference from Preparation Example 1 is that 1-bromohexane is replaced with 1-bromododecane.
[0030] Test Example 1 A series of aqueous solutions of mild surfactants prepared in Examples 1-3 with different concentrations were prepared, and the surface tension of each aqueous solution was measured. The measurements were performed in triplicate, and the average value was taken. A γ-C curve was plotted to determine the critical micelle concentration (CMC) and the critical surface tension (γ). cmc The results are shown in Table 1.
[0031] Table 1
[0032] As can be seen from the table above, the mild surfactants prepared in Examples 1-3 of the present invention have low critical micelle concentrations and low critical surface tensions.
[0033] Test Example 2 The mild surfactants prepared in Examples 1-3, with a weight of m0, were dissolved in lake water to form a solution. Degradation tests were conducted in an air bath shaker at 37°C and a shaking speed of 100 rpm. Samples were removed periodically, freeze-dried, and weighed as m1. A fresh degradation solution was then added. Complete degradation was considered achieved when (m0-m1 / m0) was greater than 0.99. The time to complete degradation was recorded. The results are shown in Table 2.
[0034] Table 2
[0035] As can be seen from the table above, the mild surfactants prepared in Examples 1-3 of this invention have good biodegradability.
[0036] Example 1: Green, environmentally friendly, highly efficient, and mild detergent Raw material composition (parts by weight): 10 parts of mild surfactant prepared in Preparation Example 1, 5 parts of auxiliary surfactant composition, 1 part of seaweed extract, 0.5 parts of vitamin C, 0.1 parts of vitamin E, 0.2 parts of vitamin B5, 0.005 parts of green apple flavor, 0.1 parts of disodium EDTA, and 60 parts of deionized water.
[0037] The auxiliary surfactant composition includes: methyl glucoside, Tween-20, dodecyl polyoxyethylene ether (3) sodium sulfate, and sodium lauryl soap, in a mass ratio of 3:1:2:4.
[0038] The preparation method includes the following steps: adding a mild surfactant and an auxiliary surfactant composition to deionized water in proportion, adding seaweed extract, vitamin C, vitamin E, and vitamin B5, heating to 40°C, stirring to dissolve, adding green apple flavor and disodium EDTA, cooling to room temperature, filtering, and discharging.
[0039] Example 2: Green, environmentally friendly, highly efficient, and gentle detergent Raw material composition (parts by weight): 20 parts of mild surfactant prepared in Preparation Example 2, 8 parts of auxiliary surfactant composition, 2 parts of aloe vera extract, 1 part of vitamin C, 0.3 parts of vitamin E, 0.5 parts of vitamin B5, 0.007 parts of lime flavoring, 0.3 parts of disodium EDTA, and 80 parts of deionized water.
[0040] The auxiliary surfactant composition includes: methyl glucoside, Tween-40, sodium dodecyl polyoxyethylene ether (3), sodium sulfate, and sodium lauryl soap, in a mass ratio of 5:3:4:6.
[0041] The preparation method includes the following steps: adding a mild surfactant and an auxiliary surfactant composition to deionized water in proportion, adding aloe vera extract, vitamin C, vitamin E, and vitamin B5, heating to 40-50℃, stirring to dissolve, adding lime flavor and disodium EDTA, cooling to room temperature, filtering, and discharging.
[0042] Example 3: Green, environmentally friendly, highly efficient, and mild detergent Raw material composition (parts by weight): 15 parts of mild surfactant prepared in Preparation Example 3, 6 parts of auxiliary surfactant composition, 1.5 parts of aloe vera extract, 0.7 parts of vitamin C, 0.2 parts of vitamin E, 0.3 parts of vitamin B5, 0.006 parts of strawberry flavoring, 0.2 parts of disodium EDTA, and 70 parts of deionized water.
[0043] The auxiliary surfactant composition includes: methyl glucoside, Tween-85, sodium dodecyl polyoxyethylene ether (3), sodium sulfate, and sodium lauryl soap, in a mass ratio of 4:2:3:5.
[0044] The preparation method includes the following steps: adding a mild surfactant and an auxiliary surfactant composition to deionized water in proportion, adding aloe vera extract, vitamin C, vitamin E, and vitamin B5, heating to 45°C, stirring to dissolve, adding strawberry flavor and disodium EDTA, cooling to room temperature, filtering, and discharging.
[0045] Comparative Example 1 The difference compared to Example 3 is that no mild surfactant was added.
[0046] Raw material composition (parts by weight): 21 parts auxiliary surfactant composition, 1.5 parts aloe vera extract, 0.7 parts vitamin C, 0.2 parts vitamin E, 0.3 parts vitamin B5, 0.006 parts strawberry flavor, 0.2 parts disodium EDTA, and 70 parts deionized water.
[0047] The auxiliary surfactant composition includes: methyl glucoside, Tween-85, sodium dodecyl polyoxyethylene ether (3), sodium sulfate, and sodium lauryl soap, in a mass ratio of 4:2:3:5.
[0048] The preparation method includes the following steps: adding the auxiliary surfactant composition to deionized water in proportion, adding aloe vera extract, vitamin C, vitamin E, and vitamin B5, heating to 45°C, stirring to dissolve, adding strawberry flavor and disodium EDTA, cooling to room temperature, filtering, and discharging.
[0049] Comparative Example 2 The difference compared to Example 3 is that no auxiliary surfactant composition was added.
[0050] Raw material composition (parts by weight): 21 parts of mild surfactant prepared in Preparation Example 3, 1.5 parts of aloe vera extract, 0.7 parts of vitamin C, 0.2 parts of vitamin E, 0.3 parts of vitamin B5, 0.006 parts of strawberry flavoring, 0.2 parts of disodium EDTA, and 70 parts of deionized water.
[0051] The preparation method includes the following steps: adding a mild surfactant to deionized water in proportion, adding aloe vera extract, vitamin C, vitamin E, and vitamin B5, heating to 45°C, stirring to dissolve, adding strawberry flavor and disodium EDTA, cooling to room temperature, filtering, and discharging.
[0052] Test Example 3 The green, environmentally friendly, highly efficient, and mild detergents prepared in Examples 1-3 and Comparative Examples 1-2 of this invention were formulated into a 1 g / L aqueous solution. 40 mL of this aqueous solution was poured into a 100 mL stoppered graduated cylinder, and then 40 mL of liquid paraffin was added. The mixture was shaken vigorously up and down 50 times and then allowed to stand. The time required for 10 mL of water to separate was recorded; this value represents the relative emulsifying power of the product. The test was repeated three times, and the average value was taken. The results are shown in Table 3.
[0053] Table 3
[0054] As can be seen from the table above, the green, environmentally friendly, efficient and mild detergents prepared in Examples 1-3 of this invention have good emulsifying properties.
[0055] Test Example 4: Foaming Ability Test The green, environmentally friendly, highly efficient, and mild detergents prepared in Examples 1-3 and Comparative Examples 1-2 of this invention were diluted to 1 g / L aqueous solutions using deionized water and hard water, respectively. 100 mL of the aqueous solution was poured into a 1000 mL stoppered graduated cylinder, and 10 mL of warm water was added. After vigorous shaking up and down 20 times, the foam height was recorded. After standing for 5 minutes, the foam height was recorded again. The test was repeated 3 times, and the average value was taken. The results are shown in Table 4.
[0056] Table 4
[0057] As can be seen from the table above, the green, environmentally friendly, efficient and mild detergents prepared in Examples 1-3 of this invention have good foaming and foam stabilizing properties and excellent resistance to hard water.
[0058] Test Example 5: In vitro cytotoxicity Fresh pig blood was diluted with PBS (phosphate buffer), centrifuged to remove the supernatant and white blood cell layer, 10 mL of red blood cell suspension was prepared with PBS and centrifuged, and the washing was repeated 3 times; finally, the red blood cells were diluted with PBS to a 2% suspension.
[0059] The green, environmentally friendly, efficient, and mild detergents prepared in Examples 1-3 and Comparative Examples 1-2 of this invention were used as test substances by preparing aqueous solutions of PBS.
[0060] One volume of red blood cell suspension was added to three volumes of the test substance at final concentrations of 1.0, 10.0, 100.0, 1000.0, 10000.0, and 100000.0 mg / L, respectively. The mixture was incubated at room temperature with stirring for 60 min. After incubation, the samples were centrifuged at 10°C at 10000 g, and their absorbance was measured at 540, 575, and 560 nm. Three replicates were prepared for each test substance. Distilled water was used as a complete hemolysis control, PBS as a solvent control, and sodium dodecyl sulfate (SDS) as a positive control.
[0061] Calculate the concentration of the test substance at 560 nm that induces hemolysis in 50% of red blood cells (H). 50 The hemoglobin denaturation rate (DI) of the test substance was calculated by the percentage of the ratio of absorbance at 575 nm and 540 nm wavelengths (ppm) to SDS, and the ratio of the two variables, H50 / DI, was calculated. The MIOI (Mean Ocular Irritation Index) was used to characterize the stimulation intensity, and the calculation formula is as follows:
[0062] The MIOI irritation grading criteria are shown in Table 5.
[0063] Table 5
[0064] The MIOI values of the green, environmentally friendly, efficient, and mild detergents prepared in Examples 1-3 and Comparative Examples 1-2 of this invention are shown in Table 6 below after testing.
[0065] Table 6
[0066] As can be seen from the table above, the green, environmentally friendly, efficient and mild detergents prepared in Examples 1-3 and Comparative Examples 1-2 of this invention are all non-irritating.
[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A green, environmentally friendly, highly efficient, and mild detergent, characterized in that: The raw materials include the following parts by weight: 10-20 parts of mild surfactant, 5-8 parts of auxiliary surfactant composition, 1-2 parts of plant extract, 0.5-1 part of vitamin C, 0.1-0.3 parts of vitamin E, 0.2-0.5 parts of vitamin B5, 0.005-0.007 parts of fragrance, 0.1-0.3 parts of disodium EDTA, and 60-80 parts of deionized water; the structural formula of the mild surfactant is shown in Formula I. ； Formula I; Wherein, R is an alkyl chain of C6-C12.
2. The green, environmentally friendly, highly efficient, and mild detergent according to claim 1, characterized in that, The auxiliary surfactant composition comprises: methyl glucoside, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene (3-4) alkyl ether sodium sulfate, and sodium lauryl soap, in a mass ratio of 3-5:1-3:2-4:4-6.
3. The green, environmentally friendly, highly efficient, and mild detergent according to claim 1, characterized in that, The preparation method of the mild surfactant is as follows: S1. Glucose and 6-aminohexanoic acid were reacted to prepare intermediate 1, with the following structure: ; S2. Intermediate 1 is reacted with a haloalkane to prepare intermediate 2, with the following structure: ; S3. Intermediate 2 was reacted with alanine to obtain intermediate 3, with the following structure: ; S4. Intermediate 3 and 1,3-propanesulfonic acid lactone were reacted to obtain the product.
4. The green, environmentally friendly, highly efficient, and mild detergent according to claim 3, characterized in that, The molar ratio of glucose to 6-aminocaproic acid in step S1 is 1.2-1.5:
1.
5. The green, environmentally friendly, highly efficient, and mild detergent according to claim 3, characterized in that, In step S2, the molar ratio of intermediate 1 to the haloalkane is 1-1.1:1, and the haloalkane is selected from at least one of 1-chlorohexane, 1-chloroheptane, 1-chlorooctane, 1-chlorononane, 1-chlorodecane, 1-chloroundecane, 1-chlorododecane, 1-bromohexane, 1-bromoheptane, 1-bromooctane, 1-bromononane, 1-bromodecane, 1-bromoundecane, and 1-bromododecane.
6. The green, environmentally friendly, highly efficient, and mild detergent according to claim 3, characterized in that, The molar ratio of intermediate 2 and alanine in step S3 is 1-1.1:
1.
7. The green, environmentally friendly, highly efficient, and mild detergent according to claim 3, characterized in that, The molar ratio of intermediate 3 and 1,3-propanesulfonic acid lactone in step S4 is 1:1-1.
1.
8. The green, environmentally friendly, highly efficient, and mild detergent according to claim 1, characterized in that, The plant extract is aloe vera extract and / or seaweed extract; the fragrance is selected from at least one of strawberry fragrance, green apple fragrance, red cherry fragrance, red grape fragrance, and lime fragrance.
9. A method for preparing a green, environmentally friendly, highly efficient, and mild detergent as described in any one of claims 1-8, characterized in that, Includes the following steps: Add the mild surfactant and auxiliary surfactant composition to deionized water in the specified proportion, then add plant extracts, vitamin C, vitamin E, and vitamin B5. Heat to 40-50°C, stir to dissolve, add fragrance and disodium EDTA, cool to room temperature, filter, and discharge.
10. The application of a green, environmentally friendly, efficient, and mild detergent as described in any one of claims 1-8 in infant and child care products.