Cleaning agent containing sodium polyaspartate and preparation method thereof

Abstract

The invention discloses a cleaning agent containing polyaspartic acid sodium salt and a preparation method thereof, and relates to the technical field of cleaning agents, and the preparation method specifically comprises the following steps: S1, adding a composite surfactant into deionized water, and stirring at 35-45 DEG C at 200-300 r / min for 5-10 min to obtain a pre-prepared solution; s2, adding a humectant, vitamin E acetate, a thickening agent and a pH regulator into the prefabricated liquid, stirring for 20-30 minutes at the rotating speed of 150-200r / min, cooling to 20-25 DEG C, adding a preservative, essence and supplementing deionized water until the total parts of the raw materials reach 100 parts, and stirring for 0.5-1 hour at the rotating speed of 150-200r / min to obtain the cleaning agent containing sodium polyaspartate.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning agents, in particular to a cleaning agent containing polyaspartic acid sodium salt and a preparation method thereof. Background Art

[0002] Cleaning agents are chemicals or mixtures used to remove impurities such as dirt, grease, stains, etc. from various surfaces. They are widely used in many fields such as household, industrial, medical, and commercial to improve cleaning efficiency and keep the environment clean and hygienic.

[0003] Traditional cleaning agents reduce the surface tension of liquids by adding the effect of surfactants, so that dirt is easy to peel off and be washed off from the surface. In addition, some cleaning agents also add ingredients such as oxidants and alkaline substances to enhance their decontamination effect and cleaning ability. However, the raw materials used in traditional cleaning agents are often chemically synthesized from petroleum. Although they have strong cleaning ability, they are easy to remain on the skin surface, thereby irritating the skin, and petrochemical products are often difficult to decompose and easily cause pollution. In the prior art, polyaspartic acid has certain decontamination ability and dispersibility because of its green and degradable friendly substance, which makes it used in a variety of industrial and daily chemical products. Among them, Chinese patents such as CN201611095000.X, an environmentally friendly and efficient lens cleaner and its preparation method, and Chinese patent CN202211152450.3, a bio-based glass cleaner for automobiles and its preparation method, directly introduce polyaspartic acid as a chelating agent to assist in increasing the chelation of stains and improving the cleaning ability; neither of them modifies the polyaspartic acid, so its cleaning performance is average, and it is necessary to further improve the cleaning performance of polyaspartic acid. At the same time, the two documents do not disclose the antibacterial properties of the cleaning agents.

[0004] In summary, in order to solve the above problems, it is of great significance to prepare a cleaning agent containing sodium polyaspartate. Summary of the invention

[0005] The object of the present invention is to provide a cleaning agent containing sodium polyaspartate and a preparation method thereof, so as to solve the problems raised in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A cleaning agent containing sodium polyaspartate comprises the following raw materials, calculated based on 100 parts by mass: 21 to 31 parts of a complex surfactant, 2 to 3 parts of a moisturizer, 0.4 to 0.6 parts of a preservative, 2 to 3 parts of a thickener, 1 to 2 parts of a pH regulator, 0.1 to 0.2 parts of vitamin E acetate, 0.05 to 0.1 parts of an essence, and the remainder being deionized water.

[0008] Preferably, the composite surfactant comprises the following substances, calculated by mass: 5 to 7 parts of sodium fatty alcohol polyoxyethylene ether sulfate, 6 to 9 parts of modified soapberry saponin, 4 to 6 parts of Houttuynia cordata active agent, and 6 to 9 parts of modified polyaspartic acid sodium salt.

[0009] Preferably, the preservative includes sodium benzoate; the moisturizer includes glycerol and hyaluronic acid in a mass ratio of 1:1; the thickener includes sodium chloride; and the pH adjuster includes citric acid.

[0010] Preferably, the preparation method of the modified sapindus saponin comprises the following steps: adding sapindus saponin into deionized water, ultrasonically dissolving, adding glutathione and an initiator, stirring for 1 to 1.5 hours under ultraviolet light conditions at 30 to 40° C., filtering, washing, and drying to obtain modified sapindus saponin.

[0011] The modified sapindus saponin comprises the following substances, calculated by weight: 7 to 9 parts of sapindus saponin, 4 to 6 parts of glutathione, and 0.5 to 1 part of initiator.

[0012] Preferably, the initiator comprises irgacure2959.

[0013] Preferably, the preparation method of the Houttuynia cordata active agent comprises the following steps:

[0014] (1) adding Houttuynia cordata powder to anhydrous ethanol and stirring evenly, adding ethyl acetate, stirring at 40-50° C. for 100-120 h, filtering, and obtaining a filter residue A and a filtrate A;

[0015] (2) adding the filter residue A to deionized water and stirring evenly, adding sodium chloride, ultrasonically treating at 70-90° C. and 800-1200 W for 10-15 min, filtering to obtain the filter residue B and filtrate B, concentrating the filtrate B under reduced pressure, and freeze-drying to obtain a water extract;

[0016] (3) Add the filter residue B to a distillation flask, add anhydrous ethanol, cellulase, and filtrate A, extract at 70-80° C. for 2-3 h, concentrate under reduced pressure, and dry to obtain an alcohol extract;

[0017] (4) The water extract and the alcohol extract are mixed evenly to obtain the Houttuynia cordata active agent.

[0018] Among them, the filter residue A and filtrate A include the following raw materials in parts by weight: 7 to 9 parts of houttuynia powder, 20 to 25 parts of anhydrous ethanol, and 3 to 5 parts of ethyl acetate; the filter residue B and the water extract include the following raw materials in parts by weight: 7 to 9 parts of filter residue A, 30 to 40 parts of deionized water, and 2 to 3 parts of sodium chloride; the alcohol extract includes the following raw materials in parts by weight: 6 to 8 parts of filter residue B, 5 to 9 parts of anhydrous ethanol, 1 to 2 parts of cellulase, and 20 to 24 parts of filtrate A; the houttuynia active agent includes the following raw materials in parts by weight: 2 to 3 parts of water extract and 2 to 3 parts of alcohol extract.

[0019] Preferably, the cellulase comprises β-1,4-glucan glucoside hydrolase.

[0020] Preferably, the preparation method of the modified sodium polyaspartate comprises the following steps: grinding aluminum magnesium silicate, passing through an 800-1000 mesh sieve, adding to deionized water for ultrasonic dispersion, adding an aminosilane coupling agent, stirring at 40-50° C. for 2-3 hours, adding sodium polyaspartate and an activator, stirring at 50-60° C. for 3-4 hours, filtering, washing, and drying to obtain modified sodium polyaspartate.

[0021] The modified sodium polyaspartate comprises the following raw materials, calculated by weight: 3 to 4 parts of magnesium aluminum silicate, 2 to 3 parts of aminosilane coupling agent, 10 to 13 parts of sodium polyaspartate, and 3 to 5 parts of activator.

[0022] Preferably, the magnesium aluminum silicate has a particle size of 1000 to 1200 meshes.

[0023] Preferably, the aminosilane coupling agent includes 3-aminopropyltriethoxysilane; and the activator includes 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride and succinimide in a mass ratio of 1:1.5-2.

[0024] Preferably, the preparation method of the cleaning agent containing polyaspartic acid sodium salt comprises the following steps:

[0025] S1: adding the composite surfactant into deionized water and stirring at 200-300 r / min at 35-45° C. for 5-10 min to obtain a preformed liquid;

[0026] S2: Add moisturizer, vitamin E acetate, thickener and pH adjuster to the pre-made liquid, stir at 150-200 r / min for 20-30 min, cool to 20-25°C, add preservatives and flavors, add deionized water to make the total number of raw materials reach 100 parts, stir at 150-200 r / min for 0.5-1 h, and obtain a cleaning agent containing sodium polyaspartate.

[0027] Among them, the cleaning agent containing sodium polyaspartate provided by the present invention is a cleaning agent for the field of daily chemicals, including but not limited to being used in products such as hand soap, laundry detergent, and dishwashing liquid.

[0028] Compared with the prior art, the beneficial effects of the present invention include the following aspects:

[0029] (1) Polyaspartic acid sodium salt is a polymer formed by connecting aspartic acid monomers or their derivatives through amide bonds, and has a good chelating effect. Magnesium aluminum silicate can adsorb and remove dirt, oil and excess keratin on the skin surface, making the skin more refreshing and smooth. It can also increase the viscosity of the detergent, making it easier to apply and distribute on the skin. At the same time, it can also keep other ingredients in the detergent in a suspended state to prevent them from precipitating or stratifying during use. Polyaspartic acid and magnesium aluminum silicate are grafted and modified by aminosilane coupling agent. Polyaspartic acid can surround the surface of magnesium aluminum silicate, making the structure more stable. At the same time, the adsorption effect of magnesium aluminum silicate and the chelating effect of polyaspartic acid can promote each other and improve the cleaning effect.

[0030] (2) Sapindus saponin is extracted from the peel of Sapindus mukorossi. Its main chemical components include triterpenoid saponins, sesquiterpenoid glycosides, etc. It is a natural non-ionic surfactant with a strong effect of reducing surface tension and can produce rich foam. The triterpenoid saponins and flavonoids in sapindus saponin have antibacterial and anti-inflammatory effects, which can reduce skin damage and relieve skin inflammation. On the other hand, by grafting glutathione, it contains a large number of peptide bonds, which can enhance its stability while improving its biological activity and washing performance, so that it can better exert its cleaning and antibacterial effects.

[0031] (3) As a natural plant, the active extract of Houttuynia cordata can be introduced into cleaning agents as a substitute for chemical synthetic antibacterial agents, which can help cleaning agents to more effectively remove and inhibit bacteria. Compared with the introduction of sapindus mukorossi saponins alone, Houttuynia cordata active agent and sapindus mukorossi saponins can produce a synergistic effect in cleaning agents. Sapindus mukorossi saponins, as a natural surfactant, have excellent cleaning ability, while the antibacterial properties of Houttuynia cordata can assist in cleaning, and together improve the overall cleaning and bactericidal effect of the cleaning agent. The mildness of Houttuynia cordata extract can further reduce adverse effects on the skin, making it suitable for use in detergents to reduce skin irritation.

[0032] (4) The present invention adopts an ethanol-water-ethanol extraction method to extract the effective ingredients of Houttuynia cordata. Alcohol extraction can increase the extraction amount of flavonoids, but when the temperature is high, the amount of volatile oil will decrease. Therefore, room temperature extraction is adopted, and then water extraction is continued to improve the extraction rate of active ingredients. At the same time, ultrasound and sodium chloride are added to improve the extraction efficiency of effective ingredients. After that, ethanol is used to further extract Houttuynia cordata, and cellulase is added to more fully destroy the plant cell wall to improve the extraction of effective substances. At the same time, a concentrated extraction is performed on the effective substances extracted before to improve the extraction rate of effective substances in Houttuynia cordata and enhance the bactericidal and cleaning effect of the detergent. DETAILED DESCRIPTION

[0033] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0034] It should be noted that there is no special restriction on the purchase manufacturers of all the raw materials involved in the present invention, which exemplarily include: soapberry saponin, purity 99%, provided by Shandong Yatu Biotechnology Co., Ltd.; glutathione, purity 99%, provided by Wuhan Shuiyixing Pharmaceutical Chemical Co., Ltd.; Houttuynia cordata powder, purity 99%, provided by Hebei Hongtao Bioengineering Co., Ltd.; cellulase, CAS No.: 9012-54-8, purity 99%, provided by Shaanxi Runfeng Biotechnology Co., Ltd.; magnesium aluminum silicate, purity 99%, provided by Wuhan Jiyesheng Chemical Co., Ltd.; 3-aminopropyltriethoxysilane, purity 99%, provided by; polyaspartic acid sodium salt, purity 99%, provided by; in the following embodiments, parts are by mass.

[0035] Embodiment 1:

[0036] Step 1: Preparation of modified sapindus saponin: 8 parts of sapindus saponin are added to 35 parts of deionized water, ultrasonically dissolved, 9 parts of glutathione and 0.5 parts of initiator are added, stirred at 35°C for 1 hour under ultraviolet light conditions, filtered, washed, and dried to obtain modified sapindus saponin;

[0037] Step 2: Preparation of modified sodium polyaspartate: grind 12 parts of magnesium aluminum silicate, pass through a 1000 mesh sieve, add 45 parts of deionized water and disperse uniformly by ultrasonication, add 4 parts of aminosilane coupling agent, stir at 45°C for 2.5 hours, add 12 parts of sodium polyaspartate and 4 parts of activator, stir at 55°C for 3.5 hours, filter, wash, and dry to obtain modified sodium polyaspartate;

[0038] Step 3: Preparation of Houttuynia cordata active agent: (1) Add 8 parts of Houttuynia cordata powder to 25 parts of anhydrous ethanol and stir evenly, add 4 parts of ethyl acetate, stir at 45°C for 110 hours, filter, and obtain filter residue A and filtrate A; (2) Add 8 parts of filter residue A to 35 parts of deionized water and stir evenly, add 2.5 parts of sodium chloride, ultrasonically treat at 80°C with a power of 1000W for 15 minutes, filter, and obtain filter residue B and filtrate B. Concentrate filtrate B under reduced pressure, freeze-dry, and obtain a water extract; (3) Add 7 parts of filter residue B to a distillation flask, add 7 parts of anhydrous ethanol, 1.5 parts of cellulase, and 22 parts of filtrate A, extract at 75°C for 2.5 hours, concentrate under reduced pressure, and dry to obtain an alcohol extract (4) Mix 2.5 parts of water extract and 2.5 parts of alcohol extract evenly to obtain a Houttuynia cordata active agent;

[0039] Step 4: A method for preparing a cleaning agent containing sodium polyaspartate comprises the following steps:

[0040] S1: 26 parts of composite surfactant (6 parts of sodium fatty alcohol polyoxyethylene ether sulfate, 7 parts of modified soapberry saponin, 5 parts of Houttuynia cordata active agent, 8 parts of modified polyaspartic acid sodium salt) were added to 45 parts of deionized water and stirred at 40°C and 250 r / min for 7 minutes to obtain a prefabricated solution;

[0041] S2: Add 2.5 parts of moisturizer, 0.15 parts of vitamin E acetate, 2.5 parts of thickener, and 1.5 parts of pH adjuster to the pre-made liquid, stir at 150 r / min for 25 minutes, then cool to 23°C, add 0.5 parts of preservative and 0.05 parts of flavor, add deionized water to make the total number of raw materials reach 100 parts, stir at 175 r / min for 0.5 hours, and obtain a cleaning agent containing sodium polyaspartate.

[0042] Embodiment 2:

[0043] Step 1: Preparation of modified sapindus saponin: 8 parts of sapindus saponin are added to 35 parts of deionized water, ultrasonically dissolved, 9 parts of glutathione and 0.5 parts of initiator are added, stirred at 35°C for 1 hour under ultraviolet light conditions, filtered, washed, and dried to obtain modified sapindus saponin;

[0044] Step 2: Preparation of modified sodium polyaspartate: grind 12 parts of magnesium aluminum silicate, pass through a 1000 mesh sieve, add 45 parts of deionized water and disperse uniformly by ultrasonication, add 4 parts of aminosilane coupling agent, stir at 45°C for 2.5 hours, add 12 parts of sodium polyaspartate and 4 parts of activator, stir at 55°C for 3.5 hours, filter, wash, and dry to obtain modified sodium polyaspartate;

[0045] Step 3: Preparation of Houttuynia cordata active agent: (1) Add 8 parts of Houttuynia cordata powder to 25 parts of anhydrous ethanol and stir evenly, add 4 parts of ethyl acetate, stir at 45°C for 110 hours, filter, and obtain filter residue A and filtrate A; (2) Add 8 parts of filter residue A to 35 parts of deionized water and stir evenly, add 2.5 parts of sodium chloride, ultrasonically treat at 80°C with a power of 1000W for 15 minutes, filter, and obtain filter residue B and filtrate B. Concentrate filtrate B under reduced pressure, freeze-dry, and obtain a water extract; (3) Add 7 parts of filter residue B to a distillation flask, add 7 parts of anhydrous ethanol, 1.5 parts of cellulase, and 22 parts of filtrate A, extract at 75°C for 2.5 hours, concentrate under reduced pressure, and dry to obtain an alcohol extract (4) Mix 2.5 parts of water extract and 2.5 parts of alcohol extract evenly to obtain a Houttuynia cordata active agent;

[0046] Step 4: A method for preparing a cleaning agent containing sodium polyaspartate comprises the following steps:

[0047] S1: 21 parts of composite surfactant (5 parts of sodium fatty alcohol polyoxyethylene ether sulfate, 6 parts of modified soapberry saponin, 4 parts of Houttuynia cordata active agent, 6 parts of modified polyaspartic acid sodium salt) were added to 40 parts of deionized water and stirred at 200 r / min at 35°C for 5 minutes to obtain a preformed solution;

[0048] S2: Add 2 parts of moisturizer, 0.1 parts of vitamin E acetate, 2 parts of thickener, and 1 part of pH adjuster to the pre-made liquid, stir at 150 r / min for 20 minutes, then cool to 20°C, add 0.4 parts of preservatives and 0.05 parts of flavor, add deionized water to make the total number of raw materials reach 100 parts, stir at 150 r / min for 0.5 hours, and obtain a cleaning agent containing sodium polyaspartate.

[0049] Embodiment 3:

[0050] Step 1: Preparation of modified sapindus saponin: 8 parts of sapindus saponin are added to 35 parts of deionized water, ultrasonically dissolved, 9 parts of glutathione and 0.5 parts of initiator are added, stirred at 35°C for 1 hour under ultraviolet light conditions, filtered, washed, and dried to obtain modified sapindus saponin;

[0051] Step 2: Preparation of modified sodium polyaspartate: grind 12 parts of magnesium aluminum silicate, pass through a 1000 mesh sieve, add 45 parts of deionized water and disperse uniformly by ultrasonication, add 4 parts of aminosilane coupling agent, stir at 45°C for 2.5 hours, add 12 parts of sodium polyaspartate and 4 parts of activator, stir at 55°C for 3.5 hours, filter, wash, and dry to obtain modified sodium polyaspartate;

[0052] Step 3: Preparation of Houttuynia cordata active agent: (1) Add 8 parts of Houttuynia cordata powder to 25 parts of anhydrous ethanol and stir evenly, add 4 parts of ethyl acetate, stir at 45°C for 110 hours, filter, and obtain filter residue A and filtrate A; (2) Add 8 parts of filter residue A to 35 parts of deionized water and stir evenly, add 2.5 parts of sodium chloride, ultrasonically treat at 80°C with a power of 1000W for 15 minutes, filter, and obtain filter residue B and filtrate B. Concentrate filtrate B under reduced pressure, freeze-dry, and obtain a water extract; (3) Add 7 parts of filter residue B to a distillation flask, add 7 parts of anhydrous ethanol, 1.5 parts of cellulase, and 22 parts of filtrate A, extract at 75°C for 2.5 hours, concentrate under reduced pressure, and dry to obtain an alcohol extract (4) Mix 2.5 parts of water extract and 2.5 parts of alcohol extract evenly to obtain a Houttuynia cordata active agent;

[0053] Step 4: A method for preparing a cleaning agent containing sodium polyaspartate comprises the following steps:

[0054] S1: 31 parts of composite surfactant (7 parts of sodium fatty alcohol polyoxyethylene ether sulfate, 9 parts of modified soapberry saponin, 6 parts of Houttuynia cordata active agent, 9 parts of modified polyaspartic acid sodium salt) were added to 50 parts of deionized water and stirred at 45°C and 300 r / min for 10 min to obtain a pre-made solution;

[0055] S2: Add 3 parts of moisturizer, 0.2 parts of vitamin E acetate, 3 parts of thickener, and 2 parts of pH adjuster to the pre-made liquid, stir at 200 r / min for 30 minutes, then cool to 25°C, add 0.6 parts of preservative and 0.1 parts of flavor, add deionized water to make the total number of raw materials reach 100 parts, stir at 200 r / min for 1 hour, and obtain a cleaning agent containing sodium polyaspartate.

[0056] Comparative Example 1: Based on Example 1, the soapberry saponin is not modified in step 1, and the other processes remain unchanged.

[0057] Step 1: Preparation of modified sodium polyaspartate: grind 12 parts of aluminum magnesium silicate, pass through a 1000 mesh sieve, add 45 parts of deionized water and disperse uniformly by ultrasonication, add 4 parts of aminosilane coupling agent, stir at 45°C for 2.5 hours, add 12 parts of sodium polyaspartate and 4 parts of activator, stir at 55°C for 3.5 hours, filter, wash, and dry to obtain modified sodium polyaspartate;

[0058] Step 2: Preparation of Houttuynia cordata active agent: (1) Add 8 parts of Houttuynia cordata powder to 25 parts of anhydrous ethanol and stir evenly, add 4 parts of ethyl acetate, stir at 45°C for 110 hours, filter, and obtain filter residue A and filtrate A; (2) Add 8 parts of filter residue A to 35 parts of deionized water and stir evenly, add 2.5 parts of sodium chloride, ultrasonically treat at 80°C with a power of 1000W for 15 minutes, filter, and obtain filter residue B and filtrate B. Concentrate filtrate B under reduced pressure, freeze-dry, and obtain a water extract; (3) Add 7 parts of filter residue B to a distillation flask, add 7 parts of anhydrous ethanol, 1.5 parts of cellulase, and 22 parts of filtrate A, extract at 75°C for 2.5 hours, concentrate under reduced pressure, and dry to obtain an alcohol extract (4) Mix 2.5 parts of water extract and 2.5 parts of alcohol extract evenly to obtain a Houttuynia cordata active agent;

[0059] Step 3: A method for preparing a cleaning agent containing sodium polyaspartate comprises the following steps:

[0060] S1: 26 parts of composite surfactant (6 parts of sodium fatty alcohol polyoxyethylene ether sulfate, 7 parts of soapberry saponin, 5 parts of Houttuynia cordata active agent, 8 parts of modified polyaspartic acid sodium salt) were added to 45 parts of deionized water and stirred at 40°C and 250 r / min for 7 minutes to obtain a prefabricated solution;

[0061] S2: Add 2.5 parts of moisturizer, 0.15 parts of vitamin E acetate, 2.5 parts of thickener, and 1.5 parts of pH adjuster to the pre-made liquid, stir at 150 r / min for 25 minutes, then cool to 23°C, add 0.5 parts of preservative and 0.05 parts of flavor, add deionized water to make the total number of raw materials reach 100 parts, stir at 175 r / min for 0.5 hours, and obtain a cleaning agent containing sodium polyaspartate.

[0062] Comparative Example 2: Based on Example 1, sodium polyaspartate and magnesium aluminum silicate are not grafted in step 2, and the rest of the process remains unchanged.

[0063] Step 1: Preparation of modified sapindus saponin: 8 parts of sapindus saponin are added to 35 parts of deionized water, ultrasonically dissolved, 9 parts of glutathione and 0.5 parts of initiator are added, stirred at 35°C for 1 hour under ultraviolet light conditions, filtered, washed, and dried to obtain modified sapindus saponin;

[0064] Step 2: Preparation of modified sodium polyaspartate: grind 12 parts of aluminum magnesium silicate, pass through a 1000 mesh sieve, add 45 parts of deionized water and disperse uniformly by ultrasonication, add 4 parts of aminosilane coupling agent, stir at 45°C for 2.5 hours, add 12 parts of sodium polyaspartate, stir at 55°C for 3.5 hours, filter, wash, and dry to obtain modified sodium polyaspartate;

[0065] Step 3: Preparation of Houttuynia cordata active agent: (1) Add 8 parts of Houttuynia cordata powder to 25 parts of anhydrous ethanol and stir evenly, add 4 parts of ethyl acetate, stir at 45°C for 110 hours, filter, and obtain filter residue A and filtrate A; (2) Add 8 parts of filter residue A to 35 parts of deionized water and stir evenly, add 2.5 parts of sodium chloride, ultrasonically treat at 80°C with a power of 1000W for 15 minutes, filter, and obtain filter residue B and filtrate B. Concentrate filtrate B under reduced pressure, freeze-dry, and obtain a water extract; (3) Add 7 parts of filter residue B to a distillation flask, add 7 parts of anhydrous ethanol, 1.5 parts of cellulase, and 22 parts of filtrate A, extract at 75°C for 2.5 hours, concentrate under reduced pressure, and dry to obtain an alcohol extract (4) Mix 2.5 parts of water extract and 2.5 parts of alcohol extract evenly to obtain a Houttuynia cordata active agent;

[0066] Step 4: A method for preparing a cleaning agent containing sodium polyaspartate comprises the following steps:

[0067] S1: 26 parts of composite surfactant (6 parts of sodium fatty alcohol polyoxyethylene ether sulfate, 7 parts of modified soapberry saponin, 5 parts of Houttuynia cordata active agent, 8 parts of modified polyaspartic acid sodium salt) were added to 45 parts of deionized water and stirred at 40°C and 250 r / min for 7 minutes to obtain a prefabricated solution;

[0068] S2: Add 2.5 parts of moisturizer, 0.15 parts of vitamin E acetate, 2.5 parts of thickener, and 1.5 parts of pH adjuster to the pre-made liquid, stir at 150 r / min for 25 minutes, then cool to 23°C, add 0.5 parts of preservative and 0.05 parts of flavor, add deionized water to make the total number of raw materials reach 100 parts, stir at 175 r / min for 0.5 hours, and obtain a cleaning agent containing sodium polyaspartate.

[0069] Comparative Example 3: Based on Example 1, step 3 only adopts the first step of ethanol extraction, and the rest of the process remains unchanged.

[0070] Step 1: Preparation of modified sapindus saponin: 8 parts of sapindus saponin are added to 35 parts of deionized water, ultrasonically dissolved, 9 parts of glutathione and 0.5 parts of initiator are added, stirred at 35°C for 1 hour under ultraviolet light conditions, filtered, washed, and dried to obtain modified sapindus saponin;

[0071] Step 2: Preparation of modified sodium polyaspartate: grind 12 parts of magnesium aluminum silicate, pass through a 1000 mesh sieve, add 45 parts of deionized water and disperse uniformly by ultrasonication, add 4 parts of aminosilane coupling agent, stir at 45°C for 2.5 hours, add 12 parts of sodium polyaspartate and 4 parts of activator, stir at 55°C for 3.5 hours, filter, wash, and dry to obtain modified sodium polyaspartate;

[0072] Step 3: Preparation of Houttuynia cordata active agent: (1) Add 8 parts of Houttuynia cordata powder to 25 parts of anhydrous ethanol and stir evenly, add 4 parts of ethyl acetate, stir at 45° C. for 110 hours, filter, concentrate the filtrate under reduced pressure, and dry to obtain the Houttuynia cordata active agent of Comparative Example 3;

[0073] Step 4: A method for preparing a cleaning agent containing sodium polyaspartate comprises the following steps:

[0074] S1: 26 parts of composite surfactant (6 parts of sodium fatty alcohol polyoxyethylene ether sulfate, 7 parts of modified soapberry saponin, 5 parts of Houttuynia cordata active agent, 8 parts of modified polyaspartic acid sodium salt) were added to 45 parts of deionized water and stirred at 40°C and 250 r / min for 7 minutes to obtain a prefabricated solution;

[0075] S2: Add 2.5 parts of moisturizer, 0.15 parts of vitamin E acetate, 2.5 parts of thickener, and 1.5 parts of pH adjuster to the pre-made liquid, stir at 150 r / min for 25 minutes, then cool to 23°C, add 0.5 parts of preservative and 0.05 parts of flavor, add deionized water to make the total number of raw materials reach 100 parts, stir at 175 r / min for 0.5 hours, and obtain a cleaning agent containing sodium polyaspartate.

[0076] Comparative Example 4: Based on Example 1, modified sapindus saponin was not added in step 4, and the rest of the process remained unchanged.

[0077] Step 1: Preparation of modified sapindus saponin: 8 parts of sapindus saponin are added to 35 parts of deionized water, ultrasonically dissolved, 9 parts of glutathione and 0.5 parts of initiator are added, stirred at 35°C for 1 hour under ultraviolet light conditions, filtered, washed, and dried to obtain modified sapindus saponin;

[0078] Step 2: Preparation of modified sodium polyaspartate: grind 12 parts of magnesium aluminum silicate, pass through a 1000 mesh sieve, add 45 parts of deionized water and disperse uniformly by ultrasonication, add 4 parts of aminosilane coupling agent, stir at 45°C for 2.5 hours, add 12 parts of sodium polyaspartate and 4 parts of activator, stir at 55°C for 3.5 hours, filter, wash, and dry to obtain modified sodium polyaspartate;

[0079] Step 3: Preparation of Houttuynia cordata active agent: (1) Add 8 parts of Houttuynia cordata powder to 25 parts of anhydrous ethanol and stir evenly, add 4 parts of ethyl acetate, stir at 45°C for 110 hours, filter, and obtain filter residue A and filtrate A; (2) Add 8 parts of filter residue A to 35 parts of deionized water and stir evenly, add 2.5 parts of sodium chloride, ultrasonically treat at 80°C with a power of 1000W for 15 minutes, filter, and obtain filter residue B and filtrate B. Concentrate filtrate B under reduced pressure, freeze-dry, and obtain a water extract; (3) Add 7 parts of filter residue B to a distillation flask, add 7 parts of anhydrous ethanol, 1.5 parts of cellulase, and 22 parts of filtrate A, extract at 75°C for 2.5 hours, concentrate under reduced pressure, and dry to obtain an alcohol extract (4) Mix 2.5 parts of water extract and 2.5 parts of alcohol extract evenly to obtain a Houttuynia cordata active agent;

[0080] Step 4: A method for preparing a cleaning agent containing sodium polyaspartate comprises the following steps:

[0081] S1: Add 26 parts of composite surfactant (13 parts of sodium fatty alcohol polyoxyethylene ether sulfate, 5 parts of Houttuynia cordata active agent, 8 parts of modified polyaspartic acid sodium salt) to 45 parts of deionized water and stir at 40°C and 250 r / min for 7 minutes to obtain a prefabricated liquid;

[0082] S2: Add 2.5 parts of moisturizer, 0.15 parts of vitamin E acetate, 2.5 parts of thickener, and 1.5 parts of pH adjuster to the pre-made liquid, stir at 150 r / min for 25 minutes, then cool to 23°C, add 0.5 parts of preservative and 0.05 parts of flavor, add deionized water to make the total number of raw materials reach 100 parts, stir at 175 r / min for 0.5 hours, and obtain a cleaning agent containing sodium polyaspartate.

[0083] Performance test: (1) Take the test piece and weigh it to get a, then apply peanut oil on the surface of the test piece at a rate of 1 mg / cm 2 , weigh to get b, spray each test sample on the surface of the test piece, let it stand for 10 minutes, rinse with 25℃ deionized water for 15 minutes, and weigh c after drying. According to the formula y=(ca) / (ba)×100%, the cleaning rate y is calculated; (2) According to patent number: CN111511346A bactericidal determination: by using the quantitative suspension method, Escherichia coli is used as the experimental bacteria to evaluate the bactericidal effect of the cleaning agent, and the residual live bacteria count is evaluated by A, B, C, and D (A: the residual live bacteria count is less than 10 cfu / mL, B: the residual live bacteria count is 10-100 cfu / mL, C: the residual live bacteria count is 100-1,000 cfu / mL, and D: the residual live bacteria count is 1,000-10,000 cfu / mL); the experimental data are shown in Table 1.

[0084] Table 1

[0085] project Cleaning rate y / % Residual viable bacteria count Example 1 90 A Example 2 88 A Example 3 87 A Comparative Example 1 82 B+ Comparative Example 2 75 A Comparative Example 3 74 B Comparative Example 4 70 B-

[0086] It can be seen from Table 1 that: in Comparative Example 1, step 1 does not modify soapberry saponin, and no skin-friendly groups such as peptide bonds are introduced, and the cleaning effect is slightly reduced; in Comparative Example 2, step 2 does not graft polyaspartic acid sodium salt and magnesium aluminum silicate, the dispersibility and stability of polyaspartic acid sodium salt in the cleaning agent are reduced, and the cleaning effect is not as good as Example 1; in Comparative Example 3, step 3 only uses the first step ethanol extraction, resulting in a decrease in the content of volatile oil components in the extract and a decrease in the cleaning and sterilization effect; in Comparative Example 4, step 4 does not add modified soapberry saponin, and the cleaning and sterilization effect is reduced.

[0087] In summary, the present invention successfully prepares a cleaning agent containing sodium polyaspartate by introducing modified soapberry saponin, modified polyaspartic acid and Houttuynia cordata active agent extracted by ethanol-water ethanol extraction method, which has good bactericidal and cleaning effects.

[0088] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cleaning agent containing sodium polyaspartate, comprising the following raw materials, based on 100 parts by mass: 21 to 31 parts of a complex surfactant, 2 to 3 parts of a moisturizer, 0.4 to 0.6 parts of a preservative, 2 to 3 parts of a thickener, 1 to 2 parts of a pH regulator, 0.1 to 0.2 parts of vitamin E acetate, 0.05 to 0.1 parts of an essence, and the remainder being deionized water.

2. A cleaning agent containing polyaspartic acid sodium salt according to claim 1, characterized in that: The composite surfactant comprises the following substances, calculated by weight: 5 to 7 parts of sodium fatty alcohol polyoxyethylene ether sulfate, 6 to 9 parts of modified soapberry saponin, 4 to 6 parts of houttuynia cordata active agent, and 6 to 9 parts of modified polyaspartic acid sodium salt.

3. A cleaning agent containing polyaspartic acid sodium salt according to claim 2, characterized in that: The preparation method of the modified sapindus saponin comprises the following steps: adding sapindus saponin into deionized water, ultrasonically dissolving, adding glutathione and an initiator, stirring for 1 to 1.5 hours under ultraviolet light conditions of 30 to 40° C., filtering, washing, and drying to obtain the modified sapindus saponin.

4. A cleaning agent containing polyaspartic acid sodium salt according to claim 3, characterized in that: The modified soapberry saponin comprises the following substances, calculated by weight: 7 to 9 parts of soapberry saponin, 4 to 6 parts of glutathione, and 0.5 to 1 part of initiator.

5. A cleaning agent containing polyaspartic acid sodium salt according to claim 2, characterized in that: The preparation method of the Houttuynia cordata active agent comprises the following steps: (1) adding Houttuynia cordata powder to anhydrous ethanol and stirring evenly, adding ethyl acetate, stirring at 40-50° C. for 100-120 h, filtering, and obtaining a filter residue A and a filtrate A; (2) adding the filter residue A to deionized water and stirring evenly, adding sodium chloride, ultrasonically treating at 70-90° C. and 800-1200 W for 10-15 min, filtering to obtain the filter residue B and filtrate B, concentrating the filtrate B under reduced pressure, and freeze-drying to obtain a water extract; (3) Add the filter residue B to a distillation flask, add anhydrous ethanol, cellulase, and filtrate A, extract at 70-80° C. for 2-3 h, concentrate under reduced pressure, and dry to obtain an alcohol extract; (4) The water extract and the alcohol extract are mixed evenly to obtain the Houttuynia cordata active agent.

6. A cleaning agent containing polyaspartic acid sodium salt according to claim 2, characterized in that: The preparation method of the modified sodium polyaspartate comprises the following steps: grinding magnesium aluminum silicate, passing through a 800-1000 mesh sieve, adding it into deionized water for uniform ultrasonic dispersion, adding an aminosilane coupling agent, stirring at 40-50° C. for 2-3 hours, adding sodium polyaspartate and an activator, stirring at 50-60° C. for 3-4 hours, filtering, washing, and drying to obtain the modified sodium polyaspartate.

7. A cleaning agent containing polyaspartic acid sodium salt according to claim 6, characterized in that: The modified polyaspartic acid sodium salt comprises the following raw materials, calculated by weight: 3 to 4 parts of magnesium aluminum silicate, 2 to 3 parts of aminosilane coupling agent, 10 to 13 parts of polyaspartic acid sodium salt, and 3 to 5 parts of activator.

8. The method for preparing a cleaning agent containing polyaspartic acid sodium salt according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: adding the composite surfactant into deionized water and stirring at 200-300 r / min at 35-45° C. for 5-10 min to obtain a preformed liquid; S2: Add moisturizer, vitamin E acetate, thickener and pH adjuster to the pre-made liquid, stir at 150-200 r / min for 20-30 min, cool to 20-25°C, add preservatives and flavors, add deionized water to make the total number of raw materials reach 100 parts, stir at 150-200 r / min for 0.5-1 h, and obtain a cleaning agent containing sodium polyaspartate.