Anti-settling stabilizer, preparation method thereof, dye and pesticide

Abstract

The invention relates to the technical field of additives of daily chemical products, and discloses an anti-settling stabilizer and a preparation method thereof, a dye and a pesticide. The anti-settling stabilizer is composed of assistants and water, and the assistants comprise, by mass, 158-2015% of an anti-settling agent, 44.5-57.5% of an emulsifier and 2-3% of a humectant; the anti-settling agent is selected from at least one of tetrasodium glutamate diacetate, N, N-dicarboxymethyl alanine trisodium salt, sodium glutamate, ethylenediamine disuccinic acid, tetrasodium aspartate diacetate, tetrasodium iminodisuccinate and tetrasodium hydroxyiminodisuccinate. The anti-settling agent stabilizer can be complexed with alkaline earth metal ions such as calcium and magnesium in a product formula, aggregation of coloring agent particles due to the bridging effect of metal ions is reduced, and the stability of a daily chemical product system is improved on the premise that the transparency and glossiness of a product are not affected. And the biodegradable anti-settling agent, co-emulsifier and emulsifier are adopted, so that the environment-friendly effect is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of daily chemical product aids, in particular to an anti-settling stabilizer and a preparation method thereof, a dye and a pesticide. BACKGROUND

[0002] Daily chemical products can generally obtain stable solutions or emulsions when newly formulated, but in many daily chemical product formulations such as detergents, liquid-type cosmetics, blow-drying agents, etc., the presence of alkaline earth metal ions such as calcium and magnesium often leads to easy separation or even precipitation of the product after a period of storage. The occurrence of sedimentation not only destroys the uniformity of the product, but also changes the properties and affects use. The anti-settling agents currently used on the market, such as organic bentonite and silicon dioxide, are complex to use and affect the transparency and gloss of the product; ethylenediaminetetraacetic acid (EDTA) anti-settling agents are difficult to degrade and have potential impact on the environment; and polyamide anti-settling agents are relatively expensive and sensitive to the polarity of the system.

[0003] Anti-settling aids have been disclosed in the prior art. For example, the patent specification with publication number CN108716141A discloses a preparation method of an anti-settling pigment nanocapsule, which comprises, by weight percentage, 5-12 parts of organic pigment, 30-60 parts of octamethylcyclotetrasiloxane or decamethylcyclopentasiloxane, 30-70 parts of acrylic monomer, 1-3 parts of initiator, 5-20 parts of emulsifier, 1-5 parts of thickening agent, and the balance is deionized water. Although the present application ensures the depth and brightness of the pigment, the coating method of the present application affects the size and uniformity of the pigment to some extent, and the capsule is difficult to degrade in the environment, causing water pollution. For example, the patent specification with publication number CN110240822A discloses a preparation method of a polyamide anti-settling agent, which comprises, by mole, 0.2-3 moles of diamin, 0.1-1.5 moles of neutralizing agent, 0.2-4.1 moles of dimer acid, 0.05%-1% of antioxidant based on the amount of dimer acid, and 5%-30% of dehydrating agent based on the amount of dimer acid. The present application is environmentally friendly, but the preparation of the present application is complex, the use steps are cumbersome, and the price is relatively high.

[0004] In view of this, the present application is proposed. SUMMARY

[0005] The present application aims to provide an anti-settling stabilizer and a preparation method thereof, a dye and a pesticide, and to improve at least one problem mentioned in the background art.

[0006] The present application is implemented as follows: In a first aspect, the present application provides an anti-settling stabilizer, which is composed of an auxiliary agent and water, wherein the auxiliary agent comprises an anti-settling agent 158-2015%, an emulsifier 44.5-57.5%, and a humectant 2-3% by mass percentage of the anti-settling stabilizer. The anti-settling agent is at least one selected from tetrasodium glutamate diacetate, trisodium N,N-dicarboxymethyl alaninate, sodium glutamate, ethylenediamine disuccinic acid, tetrasodium aspartate diacetate, tetrasodium iminodisuccinate, and tetrasodium hydroxyiminodisuccinate. The emulsifier is at least one selected from sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, fatty alcohol polyoxyethylene ether, C16-18 alcohol stearate glyceride, hydroxy synthetic alcohol polyoxyethylene ether, and C8-16 alkyl glycoside.

[0007] In an optional embodiment, the humectant is at least one selected from glycerol, hyaluronic acid, sodium lactate, and sodium pyrrolidone carboxylate.

[0008] In an optional embodiment, the auxiliary agent further comprises a preservative 0.05-0.1% by mass percentage of the anti-settling stabilizer.

[0009] In an optional embodiment, the preservative is at least one selected from sodium benzoate, Nisin, lysozyme, and organic acid.

[0010] In an optional embodiment, the pH of the anti-settling stabilizer is 6-8. Optionally, the pH of the anti-settling stabilizer is adjusted to 6-8 by a pH regulator selected from at least one of citric acid, lactic acid, malic acid, and phosphoric acid.

[0011] In an optional embodiment, the auxiliary agent further comprises hydroxymethyl cellulose 0.8-1.2%, modified sodium alginate 0.3-0.5%, and pbs polybutylene glycol 0.1-0.3% by mass percentage of the anti-settling stabilizer.

[0012] In a second aspect, the present application provides a preparation method of the anti-settling stabilizer as described in the foregoing embodiments, which comprises: Shearing and dispersing the emulsifier to obtain a dispersion liquid; Under stirring, the anti-settling agent is added dropwise into the dispersion liquid, and the two are uniformly dispersed to obtain a first mixed liquid; Under stirring, the humectant is added dropwise into the first mixed liquid, and the two are uniformly dispersed to obtain a second mixed liquid.

[0013] In an optional embodiment, the additive further includes 0.05-0.1% of a preservative by mass percentage of the anti-settling stabilizer; and after obtaining the second mixture, the preservative is added to the second mixture. Optionally, the additive further includes a pH adjuster; after obtaining the second mixture, the pH adjuster is added to the second mixture to adjust the pH of the system to 6-8; Optionally, based on the mass percentage of the anti-settling stabilizer, the additives further include 0.8-1.2% hydroxymethyl cellulose, 0.3-0.5% modified sodium alginate, and 0.1-0.3% PBS polybutylene glycolate; after obtaining the second mixture, the additives further include adding the hydroxymethyl cellulose, the modified sodium alginate, and the PBS polybutylene glycolate to the second mixture and stirring until homogeneous; Optionally, the emulsifier is sheared and dispersed evenly using a high-speed shear mixing emulsifier; the shear rate of the high-speed shear mixing emulsifier is set to 1000~1400 r / min, and the time is 20~30 min.

[0014] Thirdly, the present invention provides a dye comprising an anti-settling stabilizer as described in any of the foregoing embodiments, wherein the anti-settling stabilizer accounts for 3 to 5% by mass in the dye.

[0015] Fourthly, the present invention provides a pesticide comprising an anti-settling stabilizer as described in the foregoing embodiments, wherein the anti-settling stabilizer accounts for 2-4% by mass in the pesticide.

[0016] The present invention has the following beneficial effects: The anti-settling stabilizer provided by this invention contains carboxyl and amino groups that readily ionize in aqueous solution to generate more negatively charged groups. This makes the molecular structure of the stabilizer more flexible and reduces steric hindrance, allowing water molecules to more easily form a hydration layer around it. This results in better solubility of the anti-settling stabilizer in water and a stronger binding force than existing EDTA-type coupling agents. It also prevents secondary sedimentation when combined with alkaline earth metal ions such as calcium and magnesium. When applied to dyes, the stabilizer improves dye stability without affecting product transparency and gloss, effectively preventing sedimentation. Essentially, it dissociates upon contact with water to release active chelating adsorbed anions—"capturing" metal ions and tiny particles such as pesticides through multi-gear coordination—forming stable chelates—ultimately eliminating the undesirable activity of metal ions or pesticide particles. Its advantages include stronger adsorption, more stable binding force, and better compatibility than traditional stabilizers.

[0017] The presence of emulsifiers can play a role similar to increasing the solubility of anti-settling agents, thereby enhancing the anti-settling effect of anti-settling agents. When anti-settling stabilizers are applied to dyes, they can also decompose and dissolve some residues or oily substances in the dyes.

[0018] Both the anti-settling agent and the emulsifier are made from easily degradable substances, which are more environmentally friendly. However, since these substances are easily degradable, they may volatilize or degrade after prolonged storage, which can reduce the anti-settling effect. To address this issue, an appropriate amount of humectant is added to the composition. The humectant can moisturize and lock in the composition to prevent the volatilization or degradation of these degradable substances, thereby extending the service life of the anti-settling stabilizer. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 The experimental results are shown in Experiment Group 1 of Experiment Example 1. Figure 2 The experimental results are shown in experimental group 2 of Experimental Example 1. Figure 3 The experimental results are shown in experimental group 3 of Experimental Example 1. Figure 4 The experimental results are shown in experimental group 4 of Experimental Example 1. Figure 5 The experimental results are shown in experimental group 5 of Experimental Example 1. Figure 6 The experimental results are shown in experimental group 6 of Experimental Example 1. Figure 7 This is a diagram showing the effect of applying Example 2 to the dye after one month; Figure 8 This is a diagram showing the effect of applying Example 3 to the dye after one month; Figure 9 This is a diagram showing the effect of applying the dye to Comparative Example 2 after one month. Figure 10 This is a diagram showing the effect of applying Comparative Example 3 to the dye after 1 month. Figure 11 The effect of Comparative Example 5 applied to the dye after 1 month; Figure 12 The effect of Comparative Example 6 applied to the dye after 1 month; Figure 13The effect of Comparative Example 7 applied to the dye after 1 month; Figure 14 This is a diagram showing the effect of applying the dye to Comparative Example 4 after one month. Figure 15 This is a graph showing the results of the experimental group in Experiment Example 2 after one month. Figure 16 This is a graph showing the effect of the control group in Example 2 after 1 month. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall apply. Reagents or instruments whose manufacturers are not specified are all conventional products that can be purchased commercially.

[0022] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0023] The present invention provides an anti-settling stabilizer, which is composed of additives and water. The additives include 15-20% anti-settling agent, 4-5% emulsifier, and 2-3% humectant by mass percentage. The antisettling agent is selected from at least one of the following: tetrasodium glutamate diacetate, trisodium N,N-dicarboxymethylalanine, monosodium glutamate, ethylenediamine disuccinic acid, tetrasodium aspartate diacetate, tetrasodium iminodisuccinate, and tetrasodium hydroxyiminodisuccinate. The emulsifier is selected from at least one of the following: sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, fatty alcohol polyoxyethylene ether, C16-18 alcohol stearate glyceryl ester, hydroxyl synthetic alcohol polyoxyethylene ether, and C8-16 alkyl glycoside.

[0024] The anti-settling stabilizer provided by this invention contains carboxyl and amino groups that readily ionize in aqueous solution to generate more negatively charged groups. This makes the molecular structure of the stabilizer more flexible and reduces steric hindrance, allowing water molecules to more easily form a hydration layer around it. This results in better solubility of the anti-settling stabilizer in water and a stronger binding force than existing EDTA-type coupling agents. It also prevents secondary sedimentation when binding with alkaline earth metal ions such as calcium and magnesium. When applied to dyes, this anti-settling stabilizer improves dye stability without affecting product transparency and gloss, effectively preventing dye sedimentation. The presence of the emulsifier further enhances its effectiveness. It functions similarly to increasing the solubility of anti-settling agents, thereby enhancing their anti-settling effect. When applied to dyes, the anti-settling stabilizer can also decompose and dissolve some residues or oily substances in the dyes. Both the anti-settling agent and the emulsifier are made from easily degradable substances, making them more environmentally friendly. However, since easily degradable substances are chosen, these substances may volatilize or degrade after prolonged storage, leading to a decrease in the anti-settling effect. To address this issue, an appropriate amount of humectant is added to the composition. The humectant can moisturize and lock in the composition, preventing the volatilization or degradation of these degradable substances and thus extending the service life of the anti-settling stabilizer.

[0025] It should be noted that the content of each component of the anti-settling stabilizer of the present invention must be within the range defined by the present invention. If the ratio changes significantly, the anti-settling effect will be reduced. Taking the humectant as an example, if the proportion of the humectant is too high, the anti-settling agent will precipitate out, reducing the degradation efficiency.

[0026] Optionally, the moisturizer is selected from at least one of glycerin, hyaluronic acid, sodium lactate, and sodium pyrrolidone carboxylate. The above-mentioned moisturizers are environmentally friendly additives.

[0027] Optionally, the additives may also include 0.05-0.1% preservatives by weight of the anti-settling stabilizer. Preservatives provide antibacterial protection and further extend the service life of the anti-settling stabilizer.

[0028] Optionally, the preservative is selected from at least one of sodium benzoate, Nisin, lysozyme, and organic acid.

[0029] Optionally, the anti-settling stabilizer has a pH of 6-8. This pH value ensures that the settling stabilizer is neutral, facilitating its application in dye or pesticide systems.

[0030] Optionally, the pH of the anti-settling stabilizer is adjusted to 6-8 by a pH adjuster selected from at least one of citric acid, lactic acid, malic acid, and phosphoric acid.

[0031] Optionally, the amount of pH adjuster added is generally 6 to 8% of the mass of the anti-settling stabilizer.

[0032] Optionally, the additives may also include 0.8-1.2% hydroxymethyl cellulose, 0.3-0.5% modified sodium alginate, and 0.1-0.3% PBS (polybutylene bismuth subtilis) by weight percentage of the antisettling stabilizer.

[0033] When the anti-settling stabilizer includes the above three substances, it can also be applied to pesticide systems. For example, 0.2% of hydroxymethyl cellulose (e.g., products produced by Xinhongyou New Materials, Shandong Runhui Chemical Co., Ltd., and Kaimaoxing Cellulose Co., Ltd.), 0.1% of modified sodium alginate (modified by mixing sodium alginate with chitosan or gelatin), and 0.3% of PBS (polybutylene bis(2-ethylhexyl)) can achieve a three-layer effect of "thickening-network-weather resistance," adapting to the anti-settling requirements of pesticides in extreme environments.

[0034] The method for preparing the anti-settling stabilizer provided in this embodiment of the invention includes: The emulsifier was sheared and dispersed to obtain a dispersion; Under stirring conditions, the anti-settling agent is added dropwise to the dispersion, and the two are dispersed evenly to obtain the first mixture. Under stirring conditions, the humectant is added dropwise to the first mixture. After the two are evenly dispersed, water is added to obtain the second mixture.

[0035] The preparation method provided by the embodiments of the present invention can produce an anti-settling stabilizer with good anti-settling performance. The order of adding emulsifier, anti-settling agent and humectant cannot be changed in the entire preparation process. The reason is that the emulsifying agent is not easy to disperse in water and needs to be dispersed evenly by a high-speed shearing machine. Experiments have shown that if the order is changed, the dispersion effect will be greatly reduced, resulting in precipitation or insoluble matter, and ultimately the experimental effect and appearance will not meet expectations. In order to enable the anti-settling agent to develop better and exert its effect, the emulsifying agent needs to be added in advance to form a pre-dispersion system to ensure the performance of the prepared anti-settling stabilizer.

[0036] Specifically, when the anti-settling stabilizer also includes a preservative and a pH adjuster, after obtaining the second mixture, the preservative and pH adjuster are added sequentially and mixed evenly.

[0037] Furthermore, when the anti-settling stabilizer also includes hydroxymethyl cellulose (10,000~2,000,000 Da), modified sodium alginate, and PBS polybutylene ester (Lanshan Tunhe / TH803S, BG-2112, FZ91PM or Shandong Xuke New Materials / Biodenhsuko TM), it is added to the system after obtaining the second mixture.

[0038] Furthermore, a high-speed shear mixing emulsifier is used to shear and disperse the emulsifier evenly. The operating parameters of the high-speed shear mixing emulsifier are set as follows: shear rate of 1000~1400 r / min and time of 20~30 min. Under these operating parameters, the shear dispersion of the emulsifier can be ensured to be uniform, resulting in a uniform and stable emulsifier.

[0039] The present invention provides a dye comprising an anti-settling stabilizer provided in the present invention, wherein the anti-settling stabilizer accounts for 3-5% of the dye by mass.

[0040] Because this dye contains an appropriate amount of anti-settling stabilizer, it has good stability and no sedimentation occurs when the system is left to stand for a long time.

[0041] The pesticide provided in this embodiment of the invention includes an anti-settling stabilizer provided in this embodiment of the invention, wherein the anti-settling stabilizer accounts for 2% to 4% by mass in the pesticide.

[0042] Because this pesticide contains an appropriate amount of anti-settling stabilizer, it has good stability and no sedimentation occurs when the system is left to stand for a long time.

[0043] Example 1 This embodiment provides an anti-settling stabilizer, the preparation method of which is as follows: Step 1: Add 10g of emulsifier (sorbitan fatty acid ester) to a 1L beaker, and simultaneously shear at 1200r / min for 25min using a small high-speed shearing machine, followed by stirring. Step 2: After stirring evenly, add 30g of anti-settling agent (tetrasodium diglutamate), and disperse and stir at a rate of 1000r / min for 12min using a disperser; Step 3: After stirring evenly, add 6g of glycerin and 0.1g of biological preservative (Nisin), and disperse and stir at a rate of 500r / min for 5min using a disperser; Step 4: Finally, add deionized water to 200g, stir at 800r / min for 18min, then gradually add pH adjuster (citric acid) dropwise. Test with a pH meter. If the pH range is maintained at 6-7, it is an anti-sedimentation aid product.

[0044] Example 2 This embodiment provides an anti-settling stabilizer, the preparation method of which is as follows: Step 1: Add 9g of emulsifier (polyoxyethylene sorbitan fatty acid ester) to a 1L beaker, and simultaneously shear at 1200r / min for 25min using a small high-speed shearing machine, followed by stirring. Step 2: After stirring evenly, add 20g of anti-settling agent (tetrasodium aspartate diacetate) and disperse and stir at a rate of 1000r / min for 12min using a disperser; Step 3: After stirring evenly, add 6g of glycerin and 0.1g of biological preservative (sodium lactate), and disperse and stir at a speed of 500r / min for 5min using a disperser; Step 4: Finally, add deionized water to 200g, stir at 800r / min for 18min, then gradually add pH adjuster (lactic acid) dropwise to adjust the pH. Test with a pH meter. If the pH range is maintained at 6-7, it is an anti-settling agent product.

[0045] Example 3 This embodiment provides an anti-settling stabilizer, the preparation method of which is as follows: Step 1: Add 16g of emulsifier (sorbitan fatty acid ester) to a 1L beaker, and simultaneously shear at 1200r / min for 25min using a small high-speed shearing machine, followed by stirring. Step 2: After stirring evenly, add 15g of anti-settling agent (trisodium N,N-dicarboxymethylalanine) and disperse and stir at a rate of 1000r / min for 12min using a disperser; Step 3: After stirring evenly, add 6g of glycerin and 0.06g of biological preservative (Nisin), and disperse and stir at a rate of 500r / min for 5min using a disperser; Step 4: Finally, add deionized water to 200g, stir at 800r / min for 18min, then gradually add pH adjuster (citric acid) dropwise. Test with a pH meter. If the pH range is maintained at 6-7, it is an anti-sedimentation aid product.

[0046] Example 4 This embodiment is basically the same as Embodiment 1, except that the amount of glycerin used is 4g.

[0047] Comparative Example 1 This comparative example is basically the same as Example 1, except that the sorbitol fatty acid ester is replaced with disodium EDTA.

[0048] Comparative Example 2 This comparative example is basically the same as Example 1, except that glycerol is not added during the preparation process.

[0049] Comparative Example 3 This comparative example is basically the same as Example 1, except that the amount of glycerol added during the preparation process is 10g.

[0050] Comparative Example 4 This comparative example is basically the same as Comparative Example 1, except that glycerol is not added during the preparation process.

[0051] Comparative Example 5 This comparative example is basically the same as Example 1, except that steps S1, S2 and S3 are replaced by adding emulsifier, anti-settling agent and glycerin to a high-speed shearing machine and shearing at a rate of 1200 r / min for 25 min.

[0052] Comparative Example 6 This comparative example is basically the same as Example 1, except that steps S1 and S2 are replaced by adding the emulsifier and anti-settling agent to a high-speed shearing machine and shearing at a rate of 1200 r / min for 25 min.

[0053] Comparative Example 7 This comparative example is basically the same as Example 1, except that steps S2 and S3 are swapped.

[0054] Experimental Example 1 The anti-settling stabilizers prepared in the various examples and comparative examples were added to the dye solution.

[0055] Dye solution: Select 1g of 370 yellow dye from patent number EP003262A3, add 99g of alkaline polyacrylamide solution (PAM 0.5%, sodium carbonate 0.1%, and deionized water to 100%); disperse and stir using a high-speed disperser until the color of the matrix surface is uniform. Take 100g of the stirred base material and pour it into a disposable cup for later use.

[0056] Prepare 10g of the above dye solution, add the anti-settling agent provided in each example and comparative example, fill into a PE transparent bottle and seal for storage.

[0057] (1) The amount of dye added to the dye solution in Example 1 and Comparative Example 1 and the sedimentation effect of the sample after being placed at room temperature for one month are recorded in Table 1.

[0058] Table 1 Comparison between Example 1 and Comparative Example 1

[0059] Comparing Example 1 with Comparative Example 1, the anti-settling stabilizer of Example 1, when added to the alkaline dye system, can ensure that the dye has good stability when the amount added reaches 3%, and no sedimentation will occur after long-term storage. Its anti-settling performance is significantly better than that of EDTA-based anti-settling agents.

[0060] (2) The amount of each embodiment and comparative example added to the dye solution and the sedimentation effect of the samples after being placed at room temperature for one month are recorded in Table 2.

[0061] Table 2 Comparison of Examples and Comparative Examples

[0062] As can be seen from Table 2, the anti-settling effect of each embodiment is better than that of the comparative examples. Comparing Comparative Example 2 and Example 1, sedimentation occurred in Comparative Example 2, indicating that a humectant should be added to the components to ensure a good anti-settling effect. Comparing Comparative Example 3 and Example 1, sedimentation occurred in Comparative Example 3, indicating that adding too much humectant can also lead to sedimentation.

[0063] Comparing Comparative Examples 5-7 with Example 1, it can be seen that the anti-settling agent of Comparative Examples 5-7 has a poor effect. This indicates that when preparing the anti-settling stabilizer, the preparation steps should be carried out in accordance with the method provided by this invention. If the components are simply mixed randomly, a stabilizer with a better anti-settling effect cannot be obtained.

[0064] (3) 0.3g of each of Example 1, Comparative Example 2, Comparative Example 1 and Comparative Example 4 were added to 10g of the dye solution involved in Experiment 1 to obtain experimental samples. The sedimentation effect after one month at room temperature is shown in Table 3.

[0065] Table 3 Comparison of Examples and Comparative Examples

[0066] The test results in Table 3 show that, compared to Example 1, Comparative Example 2, which did not add glycerin as a humectant, exhibited a significantly better anti-settling effect. This indicates that without a humectant, the anti-settling stabilizer lacks a locking effect on degradable components, resulting in a shorter sedimentation shelf life and an inability to maintain a clear, non-turbid, and non-precipitated state for an extended period. Comparative Example 4, which did not add glycerin during preparation, showed almost identical anti-settling effects to Comparative Example 1, demonstrating that for EDTA-based precipitants, the addition of a humectant has little impact on the sedimentation effect. Therefore, this biodegradable precipitant of this application requires the addition of a humectant to ensure better sedimentation performance compared to EDTA-based precipitants.

[0067] Experimental Example 2 Experimental group: Based on Example 1, before adjusting the pH in step 4, 0.1g of hydroxymethyl cellulose, 0.2g of modified sodium alginate and 0.2g of PBS polyethylene glycol butylene were added and mixed evenly. Then the pH value was adjusted to 6-7 to obtain an anti-settling stabilizer for use in pesticides. Add 0.3g of the anti-settling stabilizer to 100g of pesticide (5%~7% abamectin WDG Fasida Chemical) to prepare pesticide sample 1.

[0068] Control group: Anti-settling stabilizer of Example 1; 0.3g of the control group anti-settling stabilizer was added to 100g of pesticide (5%~7% abamectin WDG Fasida Chemical) to prepare pesticide sample 2.

[0069] The anti-settling properties of pesticide sample 1 and pesticide sample 2 were tested according to the test method in Experiment Example 1, and the test results were recorded in Table 4.

[0070] Table 4. Effects of pesticide application on experimental and control groups.

[0071] As can be seen from Table 4, the pesticide samples in the experimental group had better anti-settling properties than those in the control group. This indicates that adding appropriate amounts of hydroxymethyl cellulose, modified sodium alginate, and PBS (polybutylene phosphate) to pesticides can improve their anti-settling properties under extreme conditions.

[0072] In summary, the anti-settling stabilizer provided in this invention, when applied to dyes, can reduce the aggregation of colorant particles due to the bridging effect of alkaline earth metal ions in daily chemical product formulations, thereby improving the stability of the system without affecting the transparency and gloss of the product. In addition, the use of biodegradable anti-settling additives is environmentally friendly. The raw materials used in the preparation process are readily available, the process is simple, and the product can be directly applied to increase the anti-settling effect of many daily chemical products such as detergents, liquid cosmetics, and hair dryers, and it is effective for both moderate and severe sedimentation.

[0073] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An anti-settling stabilizer, characterized in that, Composed of additives and water, the additives, by mass percentage of the anti-settling stabilizer, include 8-15% anti-settling agent, 4.5-7.5% emulsifier, and 2-3% humectant; The antisettling agent is selected from at least one of tetrasodium glutamate diacetate, trisodium N,N-dicarboxymethylalanine, monosodium glutamate, ethylenediamine disuccinic acid, tetrasodium aspartate diacetate, tetrasodium iminodisuccinate, and tetrasodium hydroxyiminodisuccinate. The emulsifier is selected from at least one of the following: sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, fatty alcohol polyoxyethylene ether, C16-18 alcohol stearate glyceryl ester, hydroxy synthetic alcohol polyoxyethylene ether, and C8-16 alkyl glycoside.

2. The anti-settling stabilizer according to claim 1, characterized in that, The moisturizer is selected from at least one of glycerin, hyaluronic acid, sodium lactate, and sodium pyrrolidone carboxylate.

3. The anti-settling stabilizer according to claim 1, characterized in that, The additives also include 0.05-0.1% preservatives, based on a percentage by mass of the anti-settling stabilizer.

4. The anti-settling stabilizer according to claim 3, characterized in that, The preservative is selected from at least one of sodium benzoate, Nisin, lysozyme, and organic acid.

5. The anti-settling stabilizer according to claim 1, characterized in that, The pH of the anti-settling stabilizer is 6-8; Optionally, the pH of the anti-settling stabilizer is adjusted to 6-8 by a pH adjuster selected from at least one of citric acid, lactic acid, malic acid, and phosphoric acid.

6. The anti-settling stabilizer according to any one of claims 1 to 5, characterized in that, The additives, by weight percentage of the anti-settling stabilizer, further include 0.8-1.2% hydroxymethyl cellulose, 0.3-0.5% modified sodium alginate, and 0.1-0.3% PBS (polybutylene glycolate).

7. A method for preparing an anti-settling stabilizer as described in claim 1 or 2, characterized in that, include: The emulsifier was sheared and dispersed to obtain a dispersion; Under stirring conditions, the anti-settling agent is added dropwise to the dispersion, and the two are dispersed evenly to obtain a first mixture. Under stirring conditions, the humectant is added dropwise to the first mixture, and after the two are evenly dispersed, water is added to obtain the second mixture.

8. The preparation method according to claim 7, characterized in that, The additive further includes 0.05-0.1% of a preservative based on a percentage by mass of the anti-settling stabilizer; the process of obtaining the second mixture further includes adding the preservative to the second mixture. Optionally, the additive further includes a pH adjuster; after obtaining the second mixture, the pH adjuster is added to the second mixture to adjust the pH of the system to 6-8; Optionally, based on the mass percentage of the anti-settling stabilizer, the additives further include 0.8-1.2% hydroxymethyl cellulose, 0.3-0.5% modified sodium alginate, and 0.1-0.3% PBS polybutylene glycolate; after obtaining the second mixture, the additives further include adding the hydroxymethyl cellulose, the modified sodium alginate, and the PBS polybutylene glycolate to the second mixture and stirring until homogeneous; Optionally, the emulsifier is sheared and dispersed evenly using a high-speed shear mixing emulsifier; the shear rate of the high-speed shear mixing emulsifier is set to 1000~1400 r / min, and the time is 20~30 min.

9. A dye, characterized in that, The dye includes the anti-settling stabilizer as described in any one of claims 1 to 5, wherein the anti-settling stabilizer accounts for 3 to 5% of the dye by mass.

10. A pesticide, characterized in that, The pesticide includes the anti-settling stabilizer as described in claim 6, wherein the anti-settling stabilizer accounts for 2% to 4% of the pesticide by mass.

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