Efficient antibacterial acarus-killing laundry detergent and preparation method thereof

Abstract

The invention discloses an efficient antibacterial acarus-killing laundry detergent and a preparation method thereof, and belongs to the technical field of daily chemical washing. The efficient antibacterial and acarus-killing laundry detergent comprises the following components: deionized water, a surfactant, APG, a decontamination synergist, protease, lipase, a rose extract and a nano-composite degerming agent. The preparation method comprises the following steps: heating deionized water to 40 DEG C, sequentially adding a nano-composite degerming agent, a rose extract, APG and a surfactant, uniformly stirring until the mixture is transparent, and keeping the temperature for 20-30 minutes; when the temperature of the solution is reduced to 35 DEG C, adding protease, lipase and a decontamination synergist, and continuously stirring; and when the temperature is reduced to room temperature, standing for 60-90 minutes, and canning. The preparation process is simple, the cleaning capacity is high, the hand is not hurt due to super-small skin and mildness, natural rose fragrance is achieved, and the killing rate of escherichia coli, staphylococcus aureus and mites can reach 100%.

Description

Technical Field

[0001] The invention relates to the technical field of daily chemical washing, and in particular to a high-efficiency antibacterial and mite-removing laundry detergent and a preparation method thereof. Background Art

[0002] Traditional antibacterial laundry detergents have long relied on chemically synthesized fungicides, such as quaternary ammonium compounds and triclosan. Although these ingredients can quickly inhibit microbial growth, they have multiple drawbacks:

[0003] (1) Risk of drug resistance: Long-term use of chemical fungicides alone can easily induce microorganisms to produce drug-resistant genes, leading to a decrease in antibacterial efficacy. Studies have shown that the resistance rate of Staphylococcus aureus to quaternary ammonium compounds has increased from 12% in 2000 to 38% in 2023.

[0004] (2) Insufficient mite inactivation ability: The killing rate of traditional formulas on dust mites (such as household dust mites and dust mites) is generally less than 70%, and they are unable to effectively decompose the allergenic proteins in the mite corpses and excrement, making it difficult to solve the allergy problem from the root.

[0005] (3) Safety hazards: Chemical fungicides can easily remain on fabrics and may cause irritation and allergic reactions when in contact with the skin.

[0006] In recent years, research on natural antibacterial ingredients and new materials has gradually emerged, but there are fewer studies on the synergistic antibacterial effects of nanomaterials and plant extracts. Although nanomaterials (such as silver nanoparticles and titanium dioxide) have broad-spectrum antibacterial activity, their dispersion stability in aqueous solutions is poor, and high concentrations may cause cytotoxicity. Plant extracts (such as rose essential oil and tea polyphenols) are highly safe and have both antibacterial and aromatic functions, but the antibacterial effect of a single ingredient is short, and the antibacterial rate is usually less than 60%. At present, the industry has insufficient research on the synergistic effect of the two, and lacks a technical path to optimize the compounding ratio through molecular design, making it difficult to achieve a balance of "high-efficiency antibacterial + mild and safe". Although non-ionic surfactants have good compatibility, they have significant cloud point problems at low temperatures, which can easily cause system stratification and affect the shelf life stability of the product. Summary of the Invention

[0007] The purpose of the present invention is to provide a high-efficiency antibacterial and mite-removing laundry detergent and a preparation method thereof. The preparation process of the present invention is simple. The laundry detergent prepared by the innovative formula has strong cleaning ability, is mild to the skin and has little harm, has a natural rose fragrance, and has a killing rate of nearly 100% against Escherichia coli, Staphylococcus aureus and mites.

[0008] To achieve the above objectives, the present invention provides a high-efficiency antibacterial and mite-removing laundry detergent, which comprises the following components, by weight: 50 parts of deionized water, 1-2 parts of a surfactant, 1-2 parts of APG, 5-10 parts of a protease, 5-10 parts of a lipase, 1-2 parts of a stain removal enhancer, 1-2 parts of a rose extract, and 1-2 parts of a nano-composite bactericide.

[0009] Preferably, the surfactant is one or more of phenoxyethanol, ethylhexylglycerin, and salicylic acid.

[0010] Preferably, the protease is one or more of papain or subtilisin.

[0011] Preferably, the lipase is Bacillus lipase.

[0012] Preferably, the stain removal synergist is one or more of sodium citrate, AES, and sodium dodecylbenzenesulfonate.

[0013] Preferably, the nano-composite fungicide is a composite inorganic fungicide based on nano-copper, nano-zinc and nano-silver.

[0014] The present invention also provides a method for preparing the above-mentioned high-efficiency antibacterial and mite-removing laundry detergent, which specifically comprises the following steps:

[0015] (1) Heat deionized water to 40°C, add nanocomposite bactericide, rose extract, APG and surfactant in sequence, stir until transparent, and keep warm for 20-30 minutes;

[0016] (2) When the solution temperature drops to 35°C, add protease, lipase and stain remover, and continue stirring;

[0017] (3) When the solution temperature drops to room temperature, let it stand for 60-90 minutes and then can it to obtain laundry detergent.

[0018] This product utilizes surfactants such as phenoxyethanol and ethylhexylglycerin in combination with alkyl polyglycosides (APG), achieving a balanced cleaning performance and mildness. As a nonionic surfactant, APG reduces the irritation of traditional anionic surfactants while enhancing the emulsification of grease-based stains. Phenoxyethanol and other surfactants possess both antiseptic and antibacterial properties, exerting a secondary antimicrobial effect by disrupting microbial cell membranes.

[0019] Alkaline protease and lipase mainly target proteins (such as blood stains, dandruff) and fat stains, while breaking down proteins on the surface of mites and allergens in their excrement, thereby weakening the living environment of mites.

[0020] Nanocomposite disinfectants based on nanoparticles of copper, zinc, and silver release metal ions that interfere with microbial enzyme activity and disrupt cell membrane and mitochondrial function. Combined use broadens the antimicrobial spectrum and reduces the risk of single-metal resistance. The high surface area of the nanoparticles enhances contact bactericidal efficacy, directly damaging the mite's body wall through physical puncture.

[0021] The stain removal synergist chelates calcium and magnesium ions in the water to prevent redeposition, while the surfactant system forms micelles to encapsulate and remove stains and microbial debris. Rose extract, a natural ingredient containing polyphenols, provides antioxidant and soothing properties, balancing the formula's irritation while also imparting a fragrance that enhances the user experience.

[0022] Therefore, the present invention provides a high-efficiency antibacterial and mite-removing laundry detergent and a preparation method thereof, which has the following beneficial effects:

[0023] (1) Achieve breakthrough in both antibacterial and mite-killing effects, filling the market gap;

[0024] (2) The combination of natural extracts and nanotechnology is safe, non-toxic, and poses no risk of drug resistance;

[0025] (3) Mild and low-irritation, suitable for people with all skin types;

[0026] (4) The preparation process is simple, the raw material sources are abundant, and it has excellent application prospects.

[0027] The technical solution of the present invention is further described in detail below through examples. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The figure is a flow chart for preparing the high-efficiency antibacterial and mite-removing laundry detergent of the present invention. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with specific examples. It should be understood that these examples are only intended to illustrate the present invention and are not intended to limit the scope of the present invention. Any other changes, modifications, substitutions, combinations, simplifications made without violating the spirit and principles of the present invention should all be equivalent replacement modes and are included within the scope of protection of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims appended to this application and all belong to the scope of protection of the present invention.

[0030] References to "embodiments" herein mean that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the word "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0031] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0032] Unless otherwise specified in the present invention, the reagents, instruments, and equipment used are those commonly used by those skilled in the art.

[0033] The preparation method of the nanocomposite sterilizing agent used in the following examples is as follows:

[0034] (1) Copper salt, zinc salt, silver salt and deionized water were added into a reactor in a ratio of 0.2 mol: 0.02-0.04 mol: 0.003-0.006 mol: 1 L, and a hydrothermal reaction was carried out at 70-90° C. to obtain solution A.

[0035] Among them, the copper salt is any one or more of copper sulfate and copper chloride, the zinc salt is any one or more of zinc acetate, zinc chloride, and zinc sulfate, and the silver salt is one or more of silver nitrate, silver sulfate, and silver acetate.

[0036] (2) Add a surfactant and an alkaline pH regulator to solution A, adjust the pH value of the solution to 8-9, and keep the temperature to react to obtain solution B.

[0037] The amount of surfactant added is related to the copper salt content in solution A, with the ratio of surfactant to copper salt being 1-2 g:100 g. The surfactant is one or more of PVP, SDS, and PEG; and the alkaline pH adjuster is one or more of ammonia, sodium hydroxide, sodium bicarbonate, potassium hydroxide, ammonium hydroxide, and calcium hydroxide.

[0038] (3) Add an acidic pH regulator to solution B to adjust the pH value of the solution to 6.5-7 to obtain an inorganic nano disinfectant.

[0039] The acidic pH regulator is one or more of citric acid, dilute sulfuric acid, and dilute hydrochloric acid.

[0040] Example 1

[0041] This embodiment provides a method for preparing a high-efficiency antibacterial and mite-removing laundry detergent, which specifically includes the following steps:

[0042] (1) Heat 50 g of deionized water to 40 °C, add 1 g of nanocomposite bactericide, 1 g of rose extract, 1 g of APG and 1 g of phenoxyethanol in sequence, stir until transparent, and keep warm for 30 min.

[0043] (2) When the solution temperature drops to 35°C, add 5g of papain, 5g of Bacillus lipase, and 1g of sodium citrate and continue stirring.

[0044] (3) When the temperature drops to room temperature, let it stand for 90 minutes and then can the laundry detergent.

[0045] Example 2

[0046] This embodiment provides a method for preparing a high-efficiency antibacterial and mite-removing laundry detergent, which specifically includes the following steps:

[0047] (1) Heat 50 g of deionized water to 40 °C, add 1.5 g of nanocomposite bactericidal agent, 1.5 g of rose extract, 1.5 g of APG and 1.5 g of ethylhexylglycerin in sequence, stir evenly until transparent, and keep warm for 25 min.

[0048] (2) When the solution temperature drops to 35°C, add 7.5g of subtilisin, 7.5g of Bacillus lipase and 1.5g of AES and continue stirring.

[0049] (3) When the temperature drops to room temperature, let it stand for 75 minutes before canning.

[0050] Example 3

[0051] This embodiment provides a method for preparing a high-efficiency antibacterial and mite-removing laundry detergent, which specifically includes the following steps:

[0052] (1) Heat 50 g of deionized water to 40 °C, add 2 g of nanocomposite bactericide, 2 g of rose extract, 2 g of APG and 2 g of salicylic acid in sequence, stir evenly until transparent, and keep warm for 20 min.

[0053] (2) When the solution temperature drops to 35°C, add 10g of papain, 10g of Bacillus lipase and 2g of sodium dodecylbenzenesulfonate and continue stirring.

[0054] (3) When the temperature drops to room temperature, let it stand for 60 minutes before canning.

[0055] Test Example 1

[0056] The antibacterial performance test of the laundry detergents prepared in Examples 1-3 was performed.

[0057] The antibacterial ability test was carried out in accordance with QB / T2738-2023 "Evaluation Method for Antibacterial and Antibacterial Effects of Daily Chemical Products". The laundry detergents obtained in Examples 1-3 were diluted 100 times and the reaction time was 20 minutes. The antibacterial rates of Examples 1-3 against Escherichia coli and Staphylococcus aureus are shown in Table 1.

[0058] Table 1

[0059]

[0060] Test Example 2

[0061] The laundry detergents prepared in Examples 1-3 were tested for their mite-killing performance.

[0062] The mite killing ability test was carried out in accordance with T / CIAA 017-2022 "Test Method and Evaluation 4.4 of Anti-mite and Mite Removal Performance of Household Cleaning Products". The mite killing rates of the laundry detergents prepared in Examples 1-3 against mites are shown in Table 2.

[0063] Table 2

[0064]

[0065] It can be seen from the data in Table 1 and Table 2 that the laundry detergent prepared by the present invention has extremely strong antibacterial ability, and the mite killing rate within 1 hour is close to 100%, which has extremely strong mite killing ability.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solutions of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A highly effective antibacterial and mite-removing laundry detergent, characterized in that: The invention comprises the following components by weight: 50 parts of deionized water, 1-2 parts of surfactant, 1-2 parts of APG, 5-10 parts of protease, 5-10 parts of lipase, 1-2 parts of decontamination enhancer, 1-2 parts of rose extract and 1-2 parts of nano-composite bactericide.

2. The high-efficiency antibacterial and mite-removing laundry detergent according to claim 1, characterized in that: The surfactant is one or more of phenoxyethanol, ethylhexylglycerin and salicylic acid.

3. The high-efficiency antibacterial and mite-removing laundry detergent according to claim 1, characterized in that: The protease is one or more of papain or subtilisin.

4. The high-efficiency antibacterial and mite-removing laundry detergent according to claim 1, characterized in that: The lipase is Bacillus lipase.

5. The high-efficiency antibacterial and mite-removing laundry detergent according to claim 1, characterized in that: The stain removal synergist is one or more of sodium citrate, AES, and sodium dodecylbenzenesulfonate.

6. The high-efficiency antibacterial and mite-removing laundry detergent according to claim 1, characterized in that: The nano composite bactericidal agent is a composite inorganic bactericidal agent based on nano copper, nano zinc and nano silver.

7. The method for preparing a high-efficiency antibacterial and mite-removing laundry detergent according to any one of claims 1 to 6, characterized in that: The specific steps include: (1) Heat deionized water to 40°C, add nanocomposite bactericide, rose extract, APG and surfactant in sequence, stir until transparent, and keep warm for 20-30 minutes; (2) When the solution temperature drops to 35°C, add protease, lipase and stain remover, and continue stirring; (3) When the solution temperature drops to room temperature, let it stand for 60-90 minutes and then can it to obtain laundry detergent.

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