Deodorizing mildew-proof cleaning agent

Abstract

The invention relates to the technical field of daily chemicals, and discloses a deodorizing mildew-proof cleaning agent, which is composed of the following components by mass: 3%-8% of an anionic surfactant, 5%-10% of a nonionic surfactant, 1%-5% of a composite mildew inhibitor, 1%-4% of a cyclodextrin inclusion plant deodorant, 1%-3% of sodium citrate, 5%-12% of ethanol, and the balance of water. 0.5%-3% of a photocatalyst material, 0.1%-2% of a chelating agent and the balance of deionized water; and the composite mildew preventive is a mixture of polyhexamethylene biguanide hydrochloride and 2-thiocyano methylthio benzothiazole. The anionic surfactant and the non-ionic surfactant are adopted, the process conditions such as the adding sequence are controlled, meanwhile, various deodorization components such as the cyclodextrin inclusion plant deodorant are used, all the components cooperate with one another, and compared with a single-component cleaning agent or deodorant, the cleaning agent has the advantages that the cleaning effect is good, and the cleaning effect is good. Therefore, the deodorizing and mildew-proof cleaning agent has a deodorizing effect while decontaminating.

Description

Technical Field

[0001] The invention relates to the technical field of daily chemicals, in particular to a deodorizing and mildew-proof cleaning agent. Background Art

[0002] Deodorizing and mildew-proofing cleaning agent is a chemical agent used to clean the surface of objects, eliminate odors and inhibit the growth of mold. In daily life, people are paying more and more attention to the hygiene of their living environment and have higher and higher requirements for cleaning products. Traditional cleaning products can often only meet basic cleaning needs, and have limited effects on deodorizing and mildew-proofing functions. They cannot effectively solve cleaning problems in complex environments. In order to meet people's pursuit of a clean, odor-free and mildew-free environment, a deodorizing and mildew-proofing cleaning agent is needed.

[0003] Traditional cleaning agents mostly rely on a single chemical anti-mildew ingredient (such as quaternary ammonium salts and benzimidazoles). Their mechanism of action is single and can easily lead to fungal resistance. The antibacterial rate drops significantly after long-term use. In addition, physical anti-mildew methods (such as nanosilver) are expensive and easily affected by the environmental pH, making it difficult to achieve long-term antibacterial effect. At the same time, many traditional cleaning agents only have a single cleaning function and cannot meet the needs of deodorization and mildew prevention at the same time. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a deodorizing and mildew-proofing cleaning agent, which solves the problem that traditional cleaning agents only have a single cleaning function and cannot meet the deodorizing and mildew-proofing requirements at the same time.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A deodorizing and mildew-proof cleaning agent, comprising the following components in percentage by mass:

[0007] The invention comprises 3%-8% anionic surfactant, 5%-10% nonionic surfactant, 1%-5% composite mildew preventive, 1%-4% cyclodextrin inclusion plant deodorant, 1%-3% sodium citrate, 5%-12% ethanol, 0.5%-3% photocatalyst material, 0.1%-2% chelating agent, and the balance deionized water; the composite mildew preventive is a mixture of polyhexamethylene biguanide hydrochloride and 2-thiocyanatomethylthiobenzothiazole.

[0008] By adopting the above technical solution: by adopting anionic surfactants and nonionic surfactants, by controlling the process conditions such as the addition order, and combining the use of multiple deodorizing ingredients such as cyclodextrin inclusion plant deodorants, the ingredients are made to work together. Compared with single-ingredient cleaning agents or deodorizing agents, this deodorizing and mildew-proof cleaning agent has a deodorizing effect while removing dirt.

[0009] Preferably, the anionic surfactant is a mixture of sodium dodecylbenzenesulfonate and sodium α-olefinsulfonate, with a mass ratio of 2:1 to 4:1; the nonionic surfactant is a mixture of fatty alcohol polyoxyethylene ether and alkyl glycoside, with a mass ratio of 3:1 to 5:1.

[0010] Preferably, the mass ratio of polyhexamethylene biguanide hydrochloride to 2-thiocyanatomethylthiobenzothiazole in the composite mildew inhibitor is 1:1 to 1:3, and the particle size of 2-thiocyanatomethylthiobenzothiazole is 1-5 μm.

[0011] Preferably, the cyclodextrin inclusion plant deodorant is formed by step-by-step inclusion of β-cyclodextrin with mugwort extract and tea polyphenol extract, wherein: the inclusion molar ratio of β-cyclodextrin to mugwort extract is 1:2 to 1:4; the inclusion molar ratio of β-cyclodextrin to tea polyphenol extract is 1:1 to 1:3; after the inclusion is completed, the mass ratio of mugwort extract to tea polyphenol extract is 1:1 to 1:3.

[0012] Preferably, the photocatalyst material is a mixture of nano-titanium dioxide and nano-zinc oxide in a mass ratio of 1:1 to 3:1, with a particle size of 10-50 nm, and is subjected to ultrasonic dispersion treatment at a frequency of 20-40 kHz and a power of 200-400 W for 30-60 minutes.

[0013] Preferably, the viscosity of the final product is 300-1000 mPa·s, the shelf life is ≥18 months, and the antibacterial rate against Aspergillus niger is ≥99%.

[0014] Preferably, a method for preparing a deodorizing and mildew-proof cleaning agent is used for the deodorizing and mildew-proof cleaning agent, and the method comprises the following steps:

[0015] S1. Premixing: Add anionic surfactant and nonionic surfactant to deionized water at 40-50°C and stir for 20-30 minutes;

[0016] S2, main reaction: add compound mildew inhibitor and cyclodextrin inclusion plant deodorant in sequence, raise the temperature to 55℃-60℃, and emulsify at high speed for 15-20 minutes;

[0017] S3. Photocatalyst dispersion: Add photocatalyst material and simultaneously perform ultrasonic treatment and high-speed shear emulsification for 30-60 minutes, wherein the ultrasonic frequency is 20-40kHz, the power is 200-400W, and the shear speed is 1200-1500 rpm;

[0018] S4. Homogenization: Cool to 30-35°C, add sodium citrate, ethanol and chelating agent, adjust pH to 6-8, and let stand for 12-24 hours;

[0019] S5. Sterilization and filling: After filtering through a 0.45μm microporous membrane, sterilize with ultraviolet light for 10-15 minutes, and replace oxygen with nitrogen until the residual oxygen content is ≤0.5% before filling.

[0020] Preferably, the chelating agent in step S4 is a mixture of disodium edetate and sodium citrate, with a mass ratio of 1:1 to 1:2, and a total addition amount of 0.1%-2%.

[0021] Preferably, the ultraviolet sterilization wavelength in step S5 is 254 nm and the irradiation intensity is 30-50 mW / cm 2 .

[0022] Preferably, the order of adding the anionic surfactant in S1 is: first add sodium α-olefin sulfonate, stir for 10 minutes, and then add sodium dodecylbenzene sulfonate.

[0023] The present invention provides a deodorizing and mildew-proof cleaning agent having the following beneficial effects:

[0024] 1. The present invention adopts anionic surfactants and nonionic surfactants, controls process conditions such as the order of addition, and combines the use of multiple deodorizing ingredients such as cyclodextrin inclusion plant deodorants to make the ingredients work together. Compared with single-ingredient cleaning agents or deodorants, the deodorizing and mildew-proof cleaning agent has a deodorizing effect while removing dirt.

[0025] 2. The present invention improves the mildew resistance of the cleaning agent by rationally combining polyhexamethylene biguanide hydrochloride and 2-thiocyanatomethylthiobenzothiazole in the composite mildew preventer and strictly controlling the particle size of 2-thiocyanatomethylthiobenzothiazole, in addition to the synergistic effect of the photocatalyst material. The antibacterial rate against common mildew fungi such as Aspergillus niger is ≥99%. At the same time, by controlling the viscosity of the final product within the range of 300-1000 mPa·s and rationally using auxiliary agents such as chelating agents, the overall stability of the product is improved, and the mildew resistance of the cleaning agent is long-lasting and stable during storage and use.

[0026] 3. The main ingredients in the present invention, such as plant extracts, photocatalyst materials such as nano-titanium dioxide and nano-zinc oxide, and the chelating agent combination of disodium ethylenediaminetetraacetic acid and sodium citrate, are all derived from relatively environmentally friendly and safe raw materials, and will not release harmful substances during use. The use of ultraviolet sterilization treatment further reduces the use of chemical fungicides and reduces potential hazards to the environment and human health. At the same time, the product has a moderate viscosity that is easy to use and has strong adaptability to water quality, enabling it to be used in a variety of scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The present invention is a flow chart of a method for preparing a deodorizing and mildew-proof cleaning agent. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] The embodiment of the present invention provides a deodorizing and mildew-proof cleaning agent, which is composed of the following components in percentage by mass:

[0030] Anionic surfactant 3%-8%, nonionic surfactant 5%-10%, composite mildew inhibitor 1%-5%, cyclodextrin inclusion plant deodorant 1%-4%, sodium citrate 1%-3%, ethanol 5%-12%, photocatalyst material 0.5%-3%, chelating agent 0.1%-2%, and deionized water as the balance; the composite mildew inhibitor is a mixture of polyhexamethylene biguanide hydrochloride and 2-thiocyanatomethylthiobenzothiazole.

[0031] The anionic surfactant is a mixture of sodium dodecylbenzene sulfonate and sodium α-olefin sulfonate in a mass ratio of 2:1 to 4:1; the nonionic surfactant is a mixture of fatty alcohol polyoxyethylene ether and alkyl glycoside in a mass ratio of 3:1 to 5:1.

[0032] Specifically, sodium dodecylbenzene sulfonate (SAS) is an anionic surfactant with excellent performance and extremely strong detergency. The lipophilic groups in its molecular structure can be adsorbed on the surface of dirt, and the hydrophilic groups can form micelle structures in water, surrounding the dirt from the surface of the cleaned object and suspending it in the water, thereby achieving decontamination. Under acidic or neutral conditions, its decontamination performance is still excellent. For common dirt such as oil and dust, sodium dodecylbenzene sulfonate can quickly penetrate and emulsify the oil; sodium α-olefin sulfonate (AOS) has good foaming and biodegradability. Its foaming property enables rich foam to be generated during the washing process, and these foams can play a certain role in buffering At the same time, sodium α-olefin sulfonate has a strong tolerance to hard water and can maintain good detergency in water containing certain hardness ions (such as calcium and magnesium ions); fatty alcohol polyoxyethylene ether (AEO) has good wetting properties and can quickly reduce the surface tension of the liquid, so that the detergent can quickly spread on the surface of the cleaned object. This spreading effect helps the surfactant to contact the dirt faster and improve the decontamination efficiency; alkyl polyglycoside (APG) has excellent mildness and safety, and has extremely low irritation to the skin and eyes, which makes detergents containing alkyl polyglycosides suitable for cleaning items that come into direct contact with the human body, such as underwear, baby clothes, etc.

[0033] The mass ratio of polyhexamethylene biguanidine hydrochloride to 2-thiocyanatomethylthiobenzothiazole in the composite mildew inhibitor is 1:1 to 1:3, and the particle size of 2-thiocyanatomethylthiobenzothiazole is 1-5 μm.

[0034] Specifically, polyhexamethylene biguanide hydrochloride is a new type of antibacterial agent. Its molecular structure contains a guanidine group, which has strong antibacterial activity. It can adsorb on the surface of mold cells and destroy the integrity of the cell membrane, thereby preventing the growth and reproduction of mold. 2-Thiocyanatomethylthiobenzothiazole is an organic sulfur compound that can inhibit the growth of mold cells. It has a strong ability to inhibit mold growth, especially for some common molds, such as Penicillium and Aspergillus.

[0035] The cyclodextrin inclusion plant deodorant is formed by step-by-step inclusion of β-cyclodextrin with mugwort extract and tea polyphenol extract to form a composite inclusion compound, wherein: the inclusion molar ratio of β-cyclodextrin to mugwort extract is 1:2 to 1:4; the inclusion molar ratio of β-cyclodextrin to tea polyphenol extract is 1:1 to 1:3; after the inclusion is completed, the mass ratio of mugwort extract to tea polyphenol extract is 1:1 to 1:3.

[0036] Specifically, β-cyclodextrin has a unique cylindrical structure, which is hydrophobic inside and hydrophilic outside. It can form an inclusion complex with mugwort extract and tea polyphenol extract. Through inclusion, the molecules of mugwort extract and tea polyphenol extract can be wrapped in the cavity of β-cyclodextrin, thereby improving their stability and solubility; mugwort extract contains a variety of effective ingredients, such as volatile oils, flavonoids, etc. These ingredients have certain antibacterial and antioxidant effects, and can inhibit the growth of odor-producing bacteria, thereby achieving a deodorizing effect; the main components of tea polyphenol extract include catechins, flavonoids, etc., which have strong antioxidant and antibacterial properties. It can destroy bacterial cell membranes, inhibit bacterial growth and reproduction, and reduce the generation of odor.

[0037] The photocatalyst material is a mixture of nano-titanium dioxide and nano-zinc oxide with a mass ratio of 1:1 to 3:1 and a particle size of 10-50nm. It is subjected to ultrasonic dispersion treatment with a frequency of 20-40kHz and a power of 200-400W for 30-60 minutes.

[0038] Specifically, nano-titanium dioxide is a common photocatalyst material with strong photocatalytic activity. Under ultraviolet irradiation, its valence band electrons will be excited to the conduction band, forming electron-hole pairs. These electron-hole pairs can react with oxygen and water molecules adsorbed on the surface to generate hydroxyl radicals (·OH) and superoxide anion radicals (O2·) with strong oxidizing properties, thereby degrading organic pollutants into harmless substances such as carbon dioxide and water, achieving the effect of deodorization and air purification. Nano-zinc oxide also has photocatalytic activity. Its energy band structure is similar to that of titanium dioxide. Under ultraviolet irradiation, it can also generate electron-hole pairs, triggering photocatalytic reactions. Compared with titanium dioxide, zinc oxide has a higher exciton binding energy, which is conducive to the separation and transmission of photogenerated carriers, thereby improving photocatalytic efficiency.

[0039] The viscosity of the final product is 300-1000 mPa·s, the shelf life is ≥18 months, and the antibacterial rate against Aspergillus niger is ≥99%.

[0040] Specifically, the viscosity is within the range of 300-1000 mPa·s, which gives the product good fluidity and facilitates even application or spraying onto the surface of the object being cleaned during use. At the same time, this viscosity is also conducive to the stability of the product during storage and transportation. It will not be easy to leak or delaminate due to being too thin, nor will it be difficult to pour or spray due to being too viscous, thereby improving the convenience of use of the product and the user experience.

[0041] Please see the attached Figure 1 A method for preparing a deodorizing and mildew-proofing cleaning agent for the above-mentioned deodorizing and mildew-proofing cleaning agent comprises the following steps:

[0042] S1. Premixing: Add anionic surfactant and nonionic surfactant to deionized water at 40-50°C and stir for 20-30 minutes;

[0043] S2, main reaction: add compound mildew inhibitor and cyclodextrin inclusion plant deodorant in sequence, raise the temperature to 55℃-60℃, and emulsify at high speed for 15-20 minutes;

[0044] S3. Photocatalyst dispersion: Add photocatalyst material and simultaneously perform ultrasonic treatment and high-speed shear emulsification for 30-60 minutes, wherein the ultrasonic frequency is 20-40kHz, the power is 200-400W, and the shear speed is 1200-1500 rpm;

[0045] S4. Homogenization: Cool to 30-35°C, add sodium citrate, ethanol and chelating agent, adjust pH to 6-8, and let stand for 12-24 hours;

[0046] S5. Sterilization and filling: After filtering through a 0.45μm microporous membrane, sterilize with ultraviolet light for 10-15 minutes, and replace oxygen with nitrogen until the residual oxygen content is ≤0.5% before filling.

[0047] Please see the attached Figure 1 In step S4, the chelating agent is a mixture of disodium ethylenediaminetetraacetic acid and sodium citrate, with a mass ratio of 1:1 to 1:2, and a total addition amount of 0.1%-2%.

[0048] Specifically, when disodium EDTA and sodium citrate are mixed in a mass ratio of 1:1 to 1:2, a synergistic effect can be produced between them. Disodium EDTA can quickly and effectively chelate hardness ions in water, while sodium citrate can further chelate and buffer the small amount of residual metal ions, ensuring the stability and performance of the cleaning agent under different water quality conditions. The use of this mixed chelating agent can not only improve the cleaning agent's ability to remove metal ions, but also reduce potential harm to the environment and human body, making the cleaning agent more environmentally friendly and safe; a total addition amount of 0.1%-2% of chelating agent can avoid the cost increase and potential risks brought by excessive use while ensuring the performance of the cleaning agent. An appropriate amount of chelating agent can effectively improve the performance of the cleaning agent, improve its adaptability to hard water, and ensure the cleaning agent's decontamination, mildew prevention and deodorization effects under various water quality conditions.

[0049] Please see the attached Figure 1 In step S5, the ultraviolet sterilization wavelength is 254nm and the irradiation intensity is 30-50mW / cm 2 .

[0050] Specifically, ultraviolet sterilization has a good killing effect on a variety of microorganisms, including bacteria, molds, viruses, etc. For microorganisms such as Aspergillus niger, which this product focuses on, ultraviolet rays with a wavelength of 254nm can effectively destroy the DNA structure in their cells, inhibiting their growth and reproduction.

[0051] Please see the attached Figure 1 The order of adding the anionic surfactant in S1 is: first add sodium α-olefin sulfonate, stir for 10 minutes, and then add sodium dodecylbenzene sulfonate.

[0052] Specifically, after sodium α-olefin sulfonate is added first, it begins to exert some of its properties in the solution, such as providing certain detergency, foaming properties and hard water resistance. Its addition enables the system to initially possess the functional characteristics of a surfactant, preparing for the subsequent synergistic effect of sodium dodecylbenzene sulfonate. Adding surfactants in this order can enable the surfactant part of the system to form a relatively stable arrangement and interaction mode in the initial stage, which lays the foundation for the stability of the subsequent entire cleaning agent system (including the addition of other ingredients such as mildew inhibitors and deodorants), and helps prevent stability problems such as stratification and precipitation during storage and use.

[0053] Example 1

[0054] 1. Technical Solution

[0055] 1. Components and ratio (mass percentage):

[0056] Anionic surfactant: sodium dodecylbenzenesulfonate 4% + sodium α-olefinsulfonate 2% (mass ratio 2:1), total 6%;

[0057] Nonionic surfactant: fatty alcohol polyoxyethylene ether 6% + alkyl glycoside 2% (mass ratio 3:1), total 8%;

[0058] Composite antifungal agent: polyhexamethylene biguanidine hydrochloride 1% + 2-thiocyanatomethylthiobenzothiazole 1% (mass ratio 1:1, particle size 3 μm), total 2%;

[0059] Cyclodextrin inclusion plant deodorant: β-cyclodextrin inclusion mugwort leaf extract 1% + tea polyphenol extract 1% (molar ratio 1:2, mass ratio 1:1), total 2%;

[0060] Photocatalyst material: nano-titanium dioxide 1% + nano-zinc oxide 0.5% (mass ratio 2:1, particle size 30 nm, ultrasonic treatment 40 kHz / 300 W / 45 minutes);

[0061] Sodium citrate 2%, ethanol 8%, chelating agent (0.1% disodium EDTA + 0.1% sodium citrate, mass ratio 1:1), total 0.2%;

[0062] The balance of deionized water is 70.8%.

[0063] 2. Preparation process:

[0064] S1. Premixing: Add sodium α-olefin sulfonate and fatty alcohol polyoxyethylene ether into 45°C deionized water, stir for 25 minutes, then add sodium dodecylbenzene sulfonate and alkyl glucoside;

[0065] S2, main reaction: add compound mildew inhibitor and cyclodextrin inclusion plant deodorant, raise the temperature to 58°C, and emulsify at high shear speed (1300 rpm) for 18 minutes;

[0066] S3, photocatalyst dispersion: simultaneous ultrasound (40kHz / 300W) and shear (1400 rpm) treatment for 50 min;

[0067] S4. Homogenization: Cool to 32°C, add sodium citrate, ethanol and chelating agent, adjust pH to 7.0, and let stand for 18 hours;

[0068] S5, Sterilization filling: After filtration, ultraviolet sterilization (254nm / 40mW / cm 2 ) for 12 minutes, fill with nitrogen until the residual oxygen reaches 0.3% and then fill.

[0069] 3. Technical Effect Verification

[0070] 1. Anti-mildew performance comparison experiment (based on GB / T1741-2007 "Determination of mildew resistance of paint films"):

[0071] Control group:

[0072] Components: anionic surfactant (sodium dodecylbenzenesulfonate 4% + sodium α-olefinsulfonate 2%), nonionic surfactant (fatty alcohol polyoxyethylene ether 6% + alkyl glycoside 2%), single mildew inhibitor (only polyhexamethylene biguanide hydrochloride 2%), sodium citrate 2%, ethanol 8%, deionized water balance;

[0073] Preparation process: Same as Example 1, except that the composite mildew inhibitor is replaced with a single mildew inhibitor;

[0074] Experimental group: cleaning agent of this example (compound mildew inhibitor 2%);

[0075] Results: Aspergillus niger inhibition rate: 99.2% in the experimental group vs 85% in the control group;

[0076] Conclusion: The composite mildew inhibitor (polyhexamethylene biguanidine hydrochloride + 2-thiocyanatomethylthiobenzothiazole) significantly improves the mildew prevention effect through chemical-physical synergistic inhibition.

[0077] 2. Comparative experiment of photocatalyst dispersion (laser particle size analyzer detection):

[0078] Control group:

[0079] Components: Same as Example 1, omitting the ultrasonic treatment step of the photocatalyst material (nano-titanium dioxide / zinc oxide is added directly);

[0080] Preparation process: In step S3, untreated photocatalyst material was directly added and mixed with stirring only (no ultrasound-shearing process). Experimental group: photocatalyst material treated with ultrasound-shearing process.

[0081] Results: Average particle size: 50 nm in the experimental group vs 220 nm in the control group;

[0082] 4. Comparison of experimental results

[0083]

[0084] Conclusion: The ultrasound-shearing synchronous process significantly reduces the agglomeration of photocatalysts and improves the catalytic activity.

[0085] 3. Stability comparison test (40℃ / RH75% accelerated test for 6 months):

[0086] Control group:

[0087] Components: Same as Example 1, omitting the chelating agent (EDTA-2Na + sodium citrate);

[0088] Preparation process: In step S4, only sodium citrate was added to adjust the pH, and no chelating agent was added. Experimental group: cleaning agent containing chelating agent (EDTA-2Na + sodium citrate);

[0089] Results: Metal ion precipitation: 0.1 g / L in the experimental group vs. 1.5 g / L in the control group;

[0090] Conclusion: Chelating agents can effectively complex metal ions, inhibit oxidative deterioration, and extend shelf life.

[0091] Example 2

[0092] 1. Technical Solution

[0093] 1. Components and ratio (mass percentage):

[0094] Anionic surfactant: sodium dodecylbenzenesulfonate 5% + sodium α-olefinsulfonate 1.25% (mass ratio 4:1), total 6.25%;

[0095] Nonionic surfactant: fatty alcohol polyoxyethylene ether 7.5% + alkyl glycoside 1.5% (mass ratio 5:1), total 9%;

[0096] Composite antifungal agent: polyhexamethylene biguanidine hydrochloride 0.75% + 2-thiocyanatomethylthiobenzothiazole 2.25% (mass ratio 1:3, particle size 5 μm), total 3%;

[0097] Cyclodextrin inclusion plant deodorant: β-cyclodextrin inclusion mugwort leaf extract 0.8% + tea polyphenol extract 2.4% (molar ratio 1:4, mass ratio 1:3), total 3.2%;

[0098] Photocatalyst material: nano-titanium dioxide 2% + nano-zinc oxide 1% (mass ratio 2:1, particle size 50 nm, ultrasonic treatment 20 kHz / 400 W / 60 min);

[0099] Sodium citrate 3%, ethanol 12%, chelating agent (EDTA-2Na 0.15% + sodium citrate 0.45%, mass ratio 1:3), total 0.6%;

[0100] The balance of deionized water is 64.95%.

[0101] 2. Preparation process:

[0102] S3, photocatalyst dispersion: ultrasonic (20kHz / 400W) and shear (1500 rpm) treatment for 60 min;

[0103] The remaining steps are the same as in Example 1.

[0104] 3. Technical Effect Verification

[0105] 1. Anti-mildew durability comparison test (based on ISO16869:2008 "Evaluation of antifungal activity of plastic materials"):

[0106] Control group:

[0107] Components: The ratio of anionic / nonionic surfactants is the same as in Example 2, a single mildewcide (only 2-thiocyanatomethylthiobenzothiazole 3%), and the other components are the same;

[0108] Preparation process: Same as Example 2, except that the composite mildew inhibitor is replaced with a single mildew inhibitor;

[0109] Experimental group: cleaning agent of this example (compound mildew inhibitor 3%);

[0110] Results: After 28 days of moist heat cycling, the antibacterial rate was 98% in the experimental group vs. 72% in the control group.

[0111] 4. Comparison of experimental results

[0112]

[0113] Conclusion: The sustained-release property of polyhexamethylene biguanide hydrochloride and the broad-spectrum activity of 2-thiocyanatomethylthiobenzothiazole synergistically enhance the long-term antifungal effect.

[0114] 2. Deodorization efficiency comparison experiment (based on GB / T18883-2002 "Indoor Air Quality Standard"):

[0115] Control group:

[0116] Components: Same as Example 2, omitting the photocatalyst material (nano-titanium dioxide / zinc oxide).

[0117] Preparation process: In step S3, no photocatalyst material is added, and only an equal amount of deionized water is added;

[0118] Experimental group: cleaning agent containing photocatalyst material;

[0119] Results: Ammonia removal rate (24 hours): 95% in the experimental group vs. 70% in the control group;

[0120] Conclusion: The photocatalytic material is uniformly loaded under ultrasonic dispersion, and the efficiency of photocatalytic decomposition of odor is increased by 35%.

[0121] Example 3

[0122] 1. Technical Solution

[0123] 1. Components and ratio (mass percentage):

[0124] Anionic surfactant: sodium dodecylbenzenesulfonate 3% + sodium α-olefinsulfonate 1.5% (mass ratio 2:1), total 4.5%;

[0125] Nonionic surfactant: fatty alcohol polyoxyethylene ether 4% + alkyl glycoside 1.33% (mass ratio 3:1), total 5.33%;

[0126] Composite antifungal agent: polyhexamethylene biguanidine hydrochloride 2% + 2-thiocyanatomethylthiobenzothiazole 1% (mass ratio 2:1, particle size 1 μm), total 3%;

[0127] Cyclodextrin inclusion plant deodorant: β-cyclodextrin inclusion mugwort leaf extract 1.5% + tea polyphenols extract 0.75% (molar ratio 1:2, mass ratio 2:1), total 2.25%;

[0128] Photocatalyst material: nano-titanium dioxide 0.5% + nano-zinc oxide 0.5% (mass ratio 1:1, particle size 10 nm, ultrasonic treatment 30 kHz / 200 W / 30 min);

[0129] Sodium citrate 1%, ethanol 5%, chelating agent (EDTA-2Na 0.05% + sodium citrate 0.15%, mass ratio 1:3), total 0.2%;

[0130] The balance of deionized water is 83.22%.

[0131] 2. Preparation process:

[0132] S3 photocatalyst dispersion: ultrasonic (30kHz / 200W) and shear (1200 rpm) treatment for 30 minutes;

[0133] The remaining steps are the same as in Example 1.

[0134] 3. Technical Effect Verification

[0135] Low temperature stability comparison test (according to GB / T11275-2007 "Determination of low temperature stability of surfactants"):

[0136] Control group:

[0137] Components: Same as Example 3, omitting the chelating agent (EDTA-2Na + sodium citrate);

[0138] Preparation process: In step S4, only sodium citrate is added to adjust the pH, and no chelating agent is added;

[0139] Experimental group: cleaning agent of this example;

[0140] Results: After freezing at -20°C for 24 hours, the experimental group showed uniform precipitation, while the control group showed stratified flocculation.

[0141] 4. Comparison of experimental results

[0142]

[0143] Conclusion: Chelating agents (EDTA-2Na + sodium citrate) inhibit low-temperature ion crystallization and improve low-temperature stability.

[0144] 2. Environmental protection comparison test (according to HJ2537-2014 "Technical Requirements for Environmental Labeling Products - Cleaning Agents"):

[0145] Control group:

[0146] Components: Same as Example 3, except that the cyclodextrin inclusion plant extract is replaced with a chemical flavor (0.5% diethyl phthalate);

[0147] Preparation process: In step S2, chemical fragrance is added to replace cyclodextrin inclusion plant deodorant;

[0148] Experimental group: Cleansing agent containing cyclodextrin-encapsulated plant extracts;

[0149] Results: VOC emissions: experimental group 48mg / m 3 vs 210 mg / m2 in the control group 3 ;

[0150] Conclusion: Plant extracts replace chemical flavors, and VOC emissions are reduced by 77%, which meets environmental protection requirements.

[0151] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A deodorizing and mildew-proof cleaning agent, characterized in that: The invention is composed of the following components in percentage by mass: 3%-8% anionic surfactant, 5%-10% nonionic surfactant, 1%-5% composite mildew preventer, 1%-4% cyclodextrin inclusion plant deodorant, 1%-3% sodium citrate, 5%-12% ethanol, 0.5%-3% photocatalyst material, 0.1%-2% chelating agent, and the balance deionized water; the composite mildew preventer is a mixture of polyhexamethylene biguanide hydrochloride and 2-thiocyanatomethylthiobenzothiazole.

2. The deodorizing and mildew-proofing cleaning agent according to claim 1, characterized in that: The anionic surfactant is a mixture of sodium dodecylbenzenesulfonate and sodium α-olefinsulfonate, with a mass ratio of 2:1 to 4:1; the nonionic surfactant is a mixture of fatty alcohol polyoxyethylene ether and alkyl glycoside, with a mass ratio of 3:1 to 5:

1.

3. The deodorizing and mildew-proofing cleaning agent according to claim 1, characterized in that: The mass ratio of polyhexamethylene biguanidine hydrochloride to 2-thiocyanatomethylthiobenzothiazole in the composite mildew inhibitor is 1:1 to 1:3, and the particle size of 2-thiocyanatomethylthiobenzothiazole is 1-5 μm.

4. The deodorizing and mildew-proofing cleaning agent according to claim 1, characterized in that: The cyclodextrin inclusion plant deodorant is formed by step-by-step inclusion of β-cyclodextrin with mugwort extract and tea polyphenol extract to form a composite inclusion compound, wherein: the inclusion molar ratio of β-cyclodextrin to mugwort extract is 1:2 to 1:4; the inclusion molar ratio of β-cyclodextrin to tea polyphenol extract is 1:1 to 1:3; after the inclusion is completed, the mass ratio of mugwort extract to tea polyphenol extract is 1:1 to 1:

3.

5. The deodorizing and mildew-proofing cleaning agent according to claim 1, characterized in that: The photocatalyst material is a mixture of nano-titanium dioxide and nano-zinc oxide with a mass ratio of 1:1 to 3:1 and a particle size of 10-50nm, and is subjected to ultrasonic dispersion treatment at a frequency of 20-40kHz and a power of 200-400W for 30-60 minutes.

6. The deodorizing and mildew-proofing cleaning agent according to claim 1, characterized in that: The viscosity of the final product is 300-1000 mPa·s, the shelf life is ≥18 months, and the antibacterial rate against Aspergillus niger is ≥99%.

7. A method for preparing a deodorizing and mildew-proof cleaning agent, characterized in that: A deodorizing and mildew-proofing cleaning agent according to any one of claims 1 to 6, the method comprising the following steps: S1. Premixing: Add anionic surfactant and nonionic surfactant to deionized water at 40-50°C and stir for 20-30 minutes; S2, main reaction: add compound mildew inhibitor and cyclodextrin inclusion plant deodorant in sequence, raise the temperature to 55℃-60℃, and emulsify at high speed for 15-20 minutes; S3. Photocatalyst dispersion: Add photocatalyst material and simultaneously perform ultrasonic treatment and high-speed shear emulsification for 30-60 minutes, wherein the ultrasonic frequency is 20-40kHz, the power is 200-400W, and the shear speed is 1200-1500 rpm; S4. Homogenization: Cool to 30-35°C, add sodium citrate, ethanol and chelating agent, adjust pH to 6-8, and let stand for 12-24 hours; S5. Sterilization and filling: After filtering through a 0.45μm microporous membrane, sterilize with ultraviolet light for 10-15 minutes, and replace oxygen with nitrogen until the residual oxygen content is ≤0.5% before filling.

8. The method for preparing a deodorizing and mildew-proofing cleaning agent according to claim 7, characterized in that: In step S4, the chelating agent is a mixture of disodium edetate and sodium citrate, with a mass ratio of 1:1 to 1:2 and a total addition amount of 0.1%-2%.

9. The method for preparing a deodorizing and mildew-proofing cleaning agent according to claim 7, characterized in that: The ultraviolet sterilization wavelength in step S5 is 254nm and the irradiation intensity is 30-50mW / cm 2 .

10. The method for preparing a deodorizing and mildew-proofing cleaning agent according to claim 7, characterized in that: The order of adding the anionic surfactant in S1 is: first add sodium α-olefin sulfonate, stir for 10 minutes, and then add sodium dodecylbenzene sulfonate.

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