Efficient decontamination laundry detergent and preparation method thereof

Abstract

The invention discloses an efficient decontamination laundry detergent and a preparation method thereof, and relates to the technical field of detergents. The preparation method comprises the following steps: coating nano-silver with tea tree essential oil, embedding the essential oil into particles through polyester, and loading the particles on silicon dioxide to prepare antibacterial particles; the tea tree essential oil reduces silver ions into nano-silver particles, the nano-silver particles are protected by using the oxidation resistance of the tea tree essential oil, and then the nano-silver particles are loaded on the silicon dioxide, so that the long-term stability is kept. Secondly, the calendula extract is embedded through monoglyceride to prepare the decontamination particles, a layer of protective film can be formed on the surface of the decontamination particles, and the calendula extract is effectively prevented from being degraded due to illumination, oxidation or high temperature in the storage process; active ingredients in the calendula extract can fully exert the antibacterial, anti-inflammatory and anti-oxidation characteristics of the active ingredients; meanwhile, monoglyceride is used as an emulsifier and a surfactant and can have a synergistic effect with alkyl glycoside in the laundry detergent. The laundry detergent prepared by the invention has antibacterial and decontamination effects.

Description

Technical Field

[0001] The present invention relates to the technical field of detergents, and particularly to a highly efficient stain-removing laundry detergent and a preparation method thereof. Background Art

[0002] In daily life, laundry detergent is an essential cleaning product for people to clean clothes. With the improvement of living standards and the enhancement of environmental awareness, consumers' requirements for laundry detergent are no longer limited to basic stain-removing functions, but also hope it has characteristics such as high-efficiency stain removal, mildness without hurting hands, environmental protection and pollution-free, and low irritation. However, there are still some deficiencies in existing laundry detergents. For example, many laundry detergents contain chemical components such as fragrances, pigments, and some preservatives, which may cause irritation to the skin, especially for people with sensitive skin. Long-term contact with such laundry detergents may lead to skin dryness, itching, and even allergic reactions; traditional laundry detergents mainly rely on surfactants to remove stains, but the removal effect on some stubborn stains is not good. Most existing laundry detergents only focus on stain-removing functions and ignore other additional functions such as antibacterial, acaricidal, softening, and antistatic. This makes consumers need to purchase other products additionally during use to meet different needs.

[0003] Therefore, developing a laundry detergent that not only has high-efficiency stain-removing ability but also is mild without hurting hands and environmentally friendly and pollution-free is an urgent problem to be solved in the current washing products industry. Based on the above background, the present invention proposes a highly efficient stain-removing laundry detergent and a preparation method thereof, aiming to solve the deficiencies of existing laundry detergents and meet the needs of consumers for high-quality washing products. Summary of the Invention

[0004] The purpose of the present invention is to provide a highly efficient stain-removing laundry detergent and a preparation method thereof to solve the problems existing in the prior art.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A highly efficient stain-removing laundry detergent is prepared from antibacterial particles, stain-removing particles, and alkyl polyglycoside as the main components. The antibacterial particles are prepared by coating nano-silver with tea tree essential oil and then embedding the essential oil into micro-particles through polyester and loading them on silica. The stain-removing particles are prepared by embedding marigold extract with monoglyceride.

[0006] Furthermore, a preparation method of a highly efficient stain-removing laundry detergent includes the following preparation steps:

[0007] (1) Dissolve silver nitrate in water, add ammonia water with a concentration of 20%, adjust the pH to 6 - 11 to prepare a silver ammonia solution; heat the silver ammonia solution to boiling, and dropwise add tea tree essential oil under stirring conditions, with a stirring speed of 60 - 120 rpm, the volume ratio of the silver ammonia solution to the tea tree essential oil is 50:1, assisted by microwave for reaction, the reaction time is 30 - 150 min, adjust the microwave power to 600 - 800 W, and the microwave temperature is 50 - 80 °C; after the reaction, centrifuge for 10 min at a centrifuge speed of 12000 rpm, take the upper layer of silver-containing tea tree essential oil, stir and mix it evenly with polyester resin, the volume ratio of polyester to silver-containing tea tree essential oil is 7 - 8:2 - 3, the stirring speed is 240 rpm, and the stirring time is 20 min, then spray dry the obtained mixture to prepare microparticles;

[0008] (2) Add 0.1 part of amino-functionalized silica and 50 parts of deionized water to a container, after ultrasonic dispersion at 40 kHz for 10 min to be uniform, stir at a speed of 120 rpm, drop 0.5 - 1 part of microparticles into the container, continue to stir for 12 - 24 h, after filtration, washing with deionized water, and freeze-drying at -40 °C, obtain antibacterial particles;

[0009] (3) Heat monoglyceride to 60 °C in a water bath, completely disperse the calendula extract into the molten monoglyceride, then add deionized water and mix and stir, with a stirring speed of 600 rpm and a time of 20 min; then disperse at a high speed of 20000 rpm for 1 min, and perform high-pressure homogenization 3 times at 10 °C, quickly cool the uniform suspension to 10 °C in an ice-water bath, then filter and take the particles and air-dry them at 10 °C with cold air for 3 h to prepare decontamination particles;

[0010] (4) In a mixing kettle, put in water, heat to 70 °C, add alkyl polyglycoside and cocamidopropyl betaine under stirring at a speed of 400 rpm, then add sorbitol and phenoxyethanol, and stir for 2 h; cool down to 38 °C, add amylase, protease, antibacterial particles, and decontamination particles, and stir for 40 min to prepare laundry detergent.

[0011] Further, in the step (1), the silver ion concentration in the silver ammonia solution is 10 μg / mL - 50 μg / mL.

[0012] Further, in the step (1), when spray drying, the inlet air temperature of the spray is 140 - 180 °C, the outlet air temperature is 80 - 100 °C, the atomizer frequency is 180 - 200 Hz, the cooling air temperature is 16 - 20 °C, and the feeding temperature is 50 - 60 °C.

[0013] Further, the preparation process of the aminated silica in step (2) is as follows: Weigh 1 part of silica and add it to 50 parts of deionized water. Add an appropriate amount of glacial acetic acid solution to adjust the pH value of the mixture to 4.0. Dropwise add 0.03 - 0.11 parts of γ-aminopropyltriethoxysilane in an 80°C water bath, and cool and reflux for 4 hours. After the reaction is completed, wash it 3 times with absolute ethanol, separate the lower layer of emulsion, and dry it in an oven at 50°C for 2 hours to obtain aminated silica.

[0014] Further, the concentration of glacial acetic acid is 10%.

[0015] Further, the calendula extract in step (3) is oil-soluble.

[0016] Further, the homogenization pressure in step (3) is 60 - 80 MPa.

[0017] Further, the mass ratio of monoglyceride, oil-soluble calendula extract, and deionized water in step (3) is 5:0.5 - 1:5 - 10.

[0018] Further, the laundry detergent in step (4) is composed of the following components by weight percentage: alkyl polyglycoside 20%, cocamidopropyl betaine 10%, protease 0.1 - 0.5%, amylase 0.1 - 0.5%, antibacterial particles 2 - 6%, decontamination particles 2 - 6%, sorbitol 2 - 5%, phenoxyethanol 0.1 - 0.5%, and the balance is deionized water.

[0019] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0020] The present invention prepares a laundry detergent with antibacterial particles, decontamination particles, and alkyl polyglycoside as the main components to achieve the effects of antibacterial and decontamination.

[0021] First, nano-silver is coated with tea tree essential oil, and then the essential oil is embedded in polyester into microparticles and loaded on silica to prepare antibacterial particles; the chemical components in tea tree essential oil can act as reducing agents to reduce silver ions to nano-silver particles. It can not only effectively release antibacterial components during the washing process, but also act as an emulsifier and surfactant to synergistically improve the overall performance of the detergent. The antioxidant property of tea tree essential oil is also used to protect nano-silver so that it will not be affected and inactivated by other components of the laundry detergent during storage; in addition, tea tree essential oil itself has antibacterial properties, which can further enhance the antibacterial effect of the detergent; in order to further improve the stability and dispersibility of the essential oil, the present invention loads it on silica. Silica has a high specific surface area and good chemical stability, which can provide a stable carrier environment for nano-silver. This composite material exhibits excellent antibacterial performance during the washing process, and nano-silver is not easily aggregated in the pores of silica, thus maintaining long-term stability.

[0022] Secondly, embedding the calendula extract with monoglyceride to prepare the decontamination particles can form a protective film on its surface, effectively preventing the calendula extract from degrading due to light, oxidation or high temperature during storage; during the laundry process, the embedding structure of monoglyceride is destroyed and the calendula extract is released; at this time, the active ingredients in the calendula extract can fully exert their antibacterial, anti-inflammatory and antioxidant properties, further enhancing the cleaning and antibacterial effects of the laundry detergent; at the same time, monoglyceride itself, as an emulsifier and surfactant, can act synergistically with the alkyl glycoside in the laundry detergent to enhance the decontamination ability and improve the washing effect. Specific Embodiments

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] In order to more clearly illustrate the method provided by the present invention, the following embodiments are used for detailed description. The test methods for each index of a highly effective decontamination laundry detergent prepared in the following embodiments are as follows:

[0025] Antibacterial property: The stock solutions of the laundry detergent solutions in the examples and the comparative examples are tested, and the antibacterial effect is tested according to QB / T 2738-2012 "Evaluation Method for Antibacterial and Bacteriostatic Effects of Daily Chemical Products".

[0026] Decontamination property: The concentration of the standard powder solution is 0.2%. The laundry detergent solutions in the examples and the comparative examples are prepared into test solutions with a concentration of 0.3%, respectively prepared with 250 mg / kg hard water, and the decontamination power of the test samples and the standard powder is tested using the method specified in QB / T 13174-2008 and the soiled cloth.

[0027] Example 1

[0028] (1) Dissolve silver nitrate in water, add ammonia water with a concentration of 20%, adjust the pH to 6, and prepare a silver-ammonia solution with a silver ion concentration of 10 μg / mL. Heat the silver-ammonia solution to boiling, and dropwise add tea tree essential oil under stirring conditions. The stirring speed is 60 rpm, the volume ratio of the silver-ammonia solution to the tea tree essential oil is 50:1, and microwave is used as an auxiliary for the reaction. The reaction time is 30 min, adjust the microwave power to 600 W, and the microwave temperature is 50 °C. After the reaction, centrifuge for 10 min at a rotational speed of 12000 rpm, take the upper layer of silver-containing tea tree essential oil, stir and mix it evenly with polyester resin. The volume ratio of polyester to silver-containing tea tree essential oil is 7:3, the stirring speed is 240 rpm, and the stirring time is 20 min. Then, spray-dry the obtained mixture. The inlet air temperature of the spray is 140 °C, the outlet air temperature is 80 °C, the atomizer frequency is 180 Hz, the cooling air temperature is 16 °C, and the feeding temperature is 50 °C to obtain microparticles;

[0029] (2) Weigh 1 part of silica and add it to 50 parts of deionized water. Add an appropriate amount of 10% glacial acetic acid solution to adjust the pH value of the mixture to 4.0. Dropwise add 0.03 parts of γ-aminopropyltriethoxysilane in an 80 °C water bath, and carry out a cooling reflux reaction for 4 h. After the reaction is completed, wash it 3 times with absolute ethanol, separate the lower layer of emulsion, and dry it in an oven at 50 °C for 2 h to prepare amino-functionalized silica. Add 0.1 part of the prepared amino-functionalized silica and 50 parts of deionized water to a container, disperse it evenly by ultrasonic wave at 40 kHz for 10 min, stir at a speed of 120 rpm, drop 0.5 parts of microparticles into the container, and continue to stir for 12 h. After filtration, washing with deionized water, and freeze-drying at -40 °C, antibacterial particles are obtained;

[0030] (3) Heat monoglyceride to 60 °C in a water bath, completely disperse the oil-soluble calendula extract into the molten monoglyceride, and then add deionized water and mix and stir. The mass ratio of monoglyceride, oil-soluble calendula extract, and deionized water is 5:0.5:5, the stirring speed is 600 rpm, and the time is 20 min. Then, disperse it at a high speed of 20000 rpm for 1 min, and carry out high-pressure homogenization 3 times at 10 °C with a homogenization pressure of 60 MPa. Quickly cool the uniform suspension to 10 °C in an ice-water bath, then filter and take the particles and air-dry them in cold air at 10 °C for 3 h to obtain decontamination particles;

[0031] (4) The laundry detergent of the present invention is composed of the following components by weight percentage: alkyl polyglycoside 20%, cocamidopropyl betaine 10%, protease 0.1%, amylase 0.1%, antibacterial particles 2%, decontamination particles 2%, sorbitol 2%, phenoxyethanol 0.1%, and deionized water in the balance; in a mixing kettle, water is charged and heated to 70 °C, and alkyl polyglycoside and cocamidopropyl betaine are added under the stirring condition at a rotation speed of 400 rpm, then sorbitol and phenoxyethanol are added, and stirring is carried out for 2 h; the temperature is lowered to 38 °C, and amylase, protease, antibacterial particles, and decontamination particles are added, and stirring is carried out for 40 min to obtain the laundry detergent.

[0032] Example 2

[0033] (1) Silver nitrate is dissolved in water, and ammonia water with a concentration of 20% is added, and the pH is adjusted to 8.5 to prepare a silver-ammonium solution with a silver ion concentration of 30 μg / mL; the silver-ammonium solution is heated to boiling, and tea tree essential oil is added dropwise under the stirring condition, the stirring speed is 90 rpm, the volume ratio of the silver-ammonium solution to the tea tree essential oil is 50:1, and microwave is used as an auxiliary for the reaction, the reaction time is 90 min, the microwave power is adjusted to 700 W, and the microwave temperature is 65 °C; after the reaction is completed, centrifugation is carried out for 10 min at a centrifugation speed of 12,000 rpm, the upper layer of silver-containing tea tree essential oil is taken, and it is stirred and mixed evenly with polyester resin, the volume ratio of polyester to silver-containing tea tree essential oil is 7.5:2.5, the stirring speed is 240 rpm, the stirring time is 20 min, and then the obtained mixture is spray-dried, the inlet air temperature of the spray is 160 °C, the outlet air temperature is 90 °C, the atomizer frequency is 190 Hz, the cooling air temperature is 18 °C, and the feeding temperature is 55 °C to obtain microparticles;

[0034] (2) Weigh 1 part of silica and add it to 50 parts of deionized water, add an appropriate amount of 10% glacial acetic acid solution to adjust the pH value of the mixed solution to 4.0; dropwise add 0.07 part of γ-aminopropyltriethoxysilane in an 80 °C water bath, and carry out a cooling reflux reaction for 4 h; after the reaction is completed, wash 3 times with absolute ethanol, separate the lower layer of emulsion, and dry it in an oven at 50 °C for 2 h to prepare amino-functionalized silica; add 0.1 part of the prepared amino-functionalized silica and 50 parts of deionized water to a container, disperse it evenly by ultrasonic wave at 40 kHz for 10 min, stir at a speed of 120 rpm, drop 0.75 part of microparticles into the container, continue to stir for 18 h, and after filtration, washing with deionized water, and freeze-drying at -40 °C, antibacterial particles are obtained;

[0035] (3) Heat the monoglyceride to 60 °C in a water bath, completely disperse the oil-soluble calendula extract into the molten monoglyceride, then add deionized water and mix and stir. The mass ratio of monoglyceride, oil-soluble calendula extract, and deionized water is 5:0.75:7.5, the stirring speed is 600 rpm, and the time is 20 min; then disperse at a high speed of 20,000 rpm for 1 min, and then perform high-pressure homogenization 3 times at 10 °C with a homogenization pressure of 70 MPa. Cool the homogeneous suspension rapidly to 10 °C in an ice-water bath, then filter to obtain the particles and air-dry them at 10 °C in cold air for 3 h to obtain the decontamination particles;

[0036] (4) The laundry detergent of the present invention is composed of the following components in weight percentages: alkyl polyglycoside 20%, cocamidopropyl betaine 10%, protease 0.3%, amylase 0.3%, antibacterial particles 4%, decontamination particles 4%, sorbitol 3.5%, phenoxyethanol 0.3%, and the balance is deionized water; in a mixing kettle, add water, heat to 70 °C, add alkyl polyglycoside and cocamidopropyl betaine under the stirring condition at a rotation speed of 400 rpm, then add sorbitol and phenoxyethanol, and stir for 2 h; cool down to 38 °C, add amylase, protease, antibacterial particles, and decontamination particles, and stir for 40 min to obtain the laundry detergent.

[0037] Example 3

[0038] (1) Dissolve silver nitrate in water, add ammonia water with a concentration of 20%, adjust the pH to 11 to prepare a silver-ammonia solution with a silver ion concentration of 50 μg / mL; heat the silver-ammonia solution to boiling, and dropwise add tea tree essential oil under the stirring condition. The stirring speed is 120 rpm, the volume ratio of the silver-ammonia solution to the tea tree essential oil is 50:1, and microwave is used as an auxiliary for the reaction. The reaction time is 150 min, adjust the microwave power to 800 W, and the microwave temperature is 80 °C; after the reaction, centrifuge for 10 min at a centrifuge speed of 12,000 rpm, take the upper layer of silver-containing tea tree essential oil, stir and mix it evenly with polyester resin. The volume ratio of polyester to silver-containing tea tree essential oil is 8:2, the stirring speed is 240 rpm, and the stirring time is 20 min. Then spray-dry the obtained mixture, with the inlet air temperature of the spray being 180 °C, the outlet air temperature being 100 °C, the atomizer frequency being 200 Hz, the cooling air temperature being 20 °C, and the feeding temperature being 60 °C to obtain the microparticles;

[0039] (2) Weigh 1 part of silicon dioxide and add it to 50 parts of deionized water. Add an appropriate amount of glacial acetic acid solution with a concentration of 10% to adjust the pH value of the mixture to 4.0. Dropwise add 0.11 part of γ-aminopropyltriethoxysilane in an 80°C water bath, and carry out a cooling reflux reaction for 4 h. After the reaction is completed, wash it 3 times with absolute ethanol, separate the lower layer of emulsion, and dry it in a drying oven at 50°C for 2 h to prepare amino-functionalized silicon dioxide. Add 0.1 part of the prepared amino-functionalized silicon dioxide and 50 parts of deionized water to a container. After ultrasonic dispersion at 40 kHz for 10 min to make it uniform, stir at a speed of 120 rpm. Drop 1 part of microparticles into the container and continue stirring for 24 h. After filtration, washing with deionized water, and freeze-drying at -40°C, antibacterial particles are obtained.

[0040] (3) Heat monoglyceride to 60°C in a water bath, completely disperse the oil-soluble calendula extract into the molten monoglyceride, and then add deionized water and mix and stir. The mass ratio of monoglyceride, oil-soluble calendula extract, and deionized water is 5:1:10, the stirring speed is 600 rpm, and the time is 20 min. Then, disperse it at a high speed of 20000 rpm for 1 min, and carry out high-pressure homogenization 3 times at 10°C with a homogenization pressure of 80 MPa. Cool the uniform suspension to 10°C rapidly in an ice-water bath, and then filter to obtain particles and air-dry them at 10°C with cold air for 3 h to prepare decontamination particles.

[0041] (4) The laundry detergent of the present invention is composed of the following components by weight percentage: alkyl polyglycoside 20%, cocamidopropyl betaine 10%, protease 0.5%, amylase 0.5%, antibacterial particles 6%, decontamination particles 6%, sorbitol 5%, phenoxyethanol 0.5%, and the balance is deionized water. In a mixing kettle, add water and heat it to 70°C. Add alkyl polyglycoside and cocamidopropyl betaine under stirring at a speed of 400 rpm, then add sorbitol and phenoxyethanol, and stir for 2 h. Cool down to 38°C, add amylase, protease, antibacterial particles, and decontamination particles, and stir for 40 min to prepare the laundry detergent.

[0042] Comparative Example 1

[0043] The difference between Comparative Example 1 and Example 2 lies in the difference in step (1). Modify step (1) as follows: Stir and mix tea tree essential oil and polyester resin evenly. The volume ratio of polyester to tea tree essential oil is 7.5:2.5, the stirring speed is 240 rpm, and the stirring time is 20 min. Then, carry out spray drying on the obtained mixture. The inlet air temperature of the spray is 160°C, the outlet air temperature is 90°C, the atomizer frequency is 190 Hz, the cooling air temperature is 18°C, and the feeding temperature is 55°C to prepare microparticles. The remaining steps are the same as those in Example 2.

[0044] Comparative Example 2

[0045] The difference between Comparative Example 2 and Example 2 is that step (1) is absent, and step (2) is changed to: Weigh 1 part of silicon dioxide and add it to 50 parts of deionized water. Add an appropriate amount of glacial acetic acid solution with a concentration of 10% to adjust the pH value of the mixture to 4.0. Dropwise add 0.07 part of γ-aminopropyltriethoxysilane in a water bath at 80 °C, and carry out a cooling reflux reaction for 4 h. After the reaction is completed, wash it 3 times with absolute ethanol, separate the lower layer of emulsion, and dry it in an oven at 50 °C for 2 h to prepare amino-functionalized silicon dioxide. Add 0.1 part of the prepared amino-functionalized silicon dioxide and 50 parts of deionized water to a container. After ultrasonic dispersion at 40 kHz for 10 min to make it uniform, stir at a speed of 120 rpm. Drop 0.75 part of nano-silver into the container, and continue stirring for 18 h. After filtration, washing with deionized water, and freeze-drying at -40 °C, antibacterial particles are obtained. The remaining steps are the same as those in Example 2.

[0046] Comparative Example 3

[0047] The difference between Comparative Example 3 and Example 2 is that step (2) is absent, and step (1) is changed to: Dissolve silver nitrate in water, add ammonia water with a concentration of 20%, and adjust the pH to 8.5 to prepare a silver ammonia solution with a silver ion concentration of 30 μg / mL. Heat the silver ammonia solution to boiling, and dropwise add tea tree essential oil under stirring conditions. The stirring speed is 90 rpm, the volume ratio of the silver ammonia solution to the tea tree essential oil is 50:1, and microwave is used as an auxiliary for the reaction. The reaction time is 90 min, adjust the microwave power to 700 W, and the microwave temperature is 65 °C. After the reaction is completed, centrifuge for 10 min at a centrifuge speed of 12,000 rpm, take the upper layer of silver-containing tea tree essential oil, stir and mix it evenly with polyester resin. The volume ratio of polyester to silver-containing tea tree essential oil is 7.5:2.5, the stirring speed is 240 rpm, and the stirring time is 20 min. Then spray-dry the obtained mixture. The inlet air temperature of the spray is 160 °C, the outlet air temperature is 90 °C, the atomizer frequency is 190 Hz, the cooling air temperature is 18 °C, and the feeding temperature is 55 °C to obtain antibacterial particles. The remaining steps are the same as those in Example 2.

[0048] Comparative Example 4

[0049] The difference between Comparative Example 4 and Example 2 is that step (3) is absent, and step (4) is modified as follows: The laundry detergent of the invention is composed of the following components by weight percentage: alkyl polyglycoside 20%, cocoamidopropyl betaine 10%, protease 0.3%, amylase 0.3%, antibacterial particles 4%, monoglyceride particles 4%, sorbitol 3.5%, phenoxyethanol 0.3%, and the balance being deionized water; In the mixing kettle, water is charged, heated to 70°C, and alkyl polyglycoside and cocoamidopropyl betaine are added under stirring at a speed of 400 rpm, then sorbitol and phenoxyethanol are added, and stirred for 2 h; The temperature is lowered to 38°C, amylase, protease, antibacterial particles, and monoglyceride are added, and stirred for 40 min to obtain the laundry detergent; The remaining steps are the same as those in Example 2.

[0050] Comparative Example 5

[0051] The difference between Comparative Example 5 and Example 2 is that step (3) is absent, and step (4) is modified as follows: The laundry detergent of the invention is composed of the following components by weight percentage: alkyl polyglycoside 20%, cocoamidopropyl betaine 10%, protease 0.3%, amylase 0.3%, antibacterial particles 4%, calendula extract 4%, sorbitol 3.5%, phenoxyethanol 0.3%, and the balance being deionized water; In the mixing kettle, water is charged, heated to 70°C, and alkyl polyglycoside and cocoamidopropyl betaine are added under stirring at a speed of 400 rpm, then sorbitol and phenoxyethanol are added, and stirred for 2 h; The temperature is lowered to 38°C, amylase, protease, antibacterial particles, and calendula extract are added, and stirred for 40 min to obtain the laundry detergent; The remaining steps are the same as those in Example 2.

[0052] Effect Example

[0053] The following Table 1 gives the performance analysis results of a highly efficient decontamination laundry detergent using Examples 1 to 3 and Comparative Examples 1 to 5 of the present invention.

[0054] Table 1

[0055]

[0056] From the comparison of the experimental data on the antibacterial properties of the examples and the comparative examples, it can be found that in the present invention, tea tree essential oil is used to coat nano-silver, and then the essential oil is embedded in polyester to form microparticles and loaded on silica to prepare antibacterial particles; the chemical components in tea tree essential oil can act as reducing agents to reduce silver ions to nano-silver particles, which can effectively release antibacterial components during the washing process. Using the antioxidant properties of tea tree essential oil to protect nano-silver, it will not be affected and inactivated by other components of the laundry detergent during storage; in addition, tea tree essential oil itself has antibacterial properties, which can further enhance the antibacterial effect of the detergent; in order to further improve the stability and dispersibility of the essential oil, the present invention loads it on silica. Silica has a high specific surface area and good chemical stability, which can provide a stable carrier environment for nano-silver. This composite material exhibits excellent antibacterial properties during the washing process, and nano-silver is not easily aggregated in the pores of silica, thus maintaining long-term stability. The present invention prepares decontamination particles by embedding calendula extract with monoglyceride, which can form a protective film on its surface to effectively prevent the calendula extract from degrading due to light, oxidation or high temperature during storage; during the laundry process, the embedding structure of monoglyceride is destroyed and the calendula extract is released; at this time, the active ingredients in the calendula extract can fully exert their antibacterial, anti-inflammatory and antioxidant properties, further enhancing the cleaning and antibacterial effects of the laundry detergent. From the comparison of the experimental data on the decontamination ratio of the examples and the comparative examples, it can be found that the tea tree essential oil in the present invention can also act as an emulsifier and surfactant synergistically to improve the overall performance of the detergent. Monoglyceride itself, as an emulsifier and surfactant, can act synergistically with alkyl glycoside in the laundry detergent to enhance the decontamination ability and improve the washing effect.

[0057] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be construed as limiting the claimed claim.

Claims

1. A highly efficient decontamination laundry detergent, characterized in that: The laundry detergent is prepared with antibacterial particles, decontamination particles and alkyl glycoside as main components. The antibacterial particles are prepared by coating nanosilver with tea tree essential oil, and then the essential oil is embedded in polyester to form microparticles loaded on silica. The decontamination particles are prepared by embedding calendula extract with monoglyceride.

2. A method for preparing a highly efficient decontamination laundry detergent, characterized in that: The method comprises the following preparation steps: (1) dissolving silver nitrate in water, adding ammonia water with a concentration of 20%, adjusting the pH to 6-11, and preparing a silver ammonium solution; heating the silver ammonium solution to boiling, and dripping tea tree essential oil under stirring conditions, the stirring speed is 60-120rpm, the volume ratio of the silver ammonia solution to the tea tree essential oil is 50:1, and reacting with the aid of microwaves, the reaction time is 30-150min, the microwave power is adjusted to 600-800W, and the microwave temperature is 50-80°C; after the reaction is completed, centrifuging for 10min, the centrifugal speed is 12000rpm, taking the upper layer of silver-containing tea tree essential oil, stirring and mixing it with polyester resin, the volume ratio of polyester to silver-containing tea tree essential oil is 7-8:2-3, the stirring speed is 240rpm, and the stirring time is 20min, and then the obtained mixture is spray-dried to obtain microparticles; (2) adding 0.1 parts of the prepared amino-silica and 50 parts of deionized water into a container, dispersing them evenly at 40kHz ultrasonic speed for 10 minutes, stirring at 120rpm, dropping 0.5-1 parts of the microparticles into the container, continuing stirring for 12-24 hours, filtering, washing with deionized water, and freeze-drying at -40°C to obtain antibacterial particles; (3) The monoglyceride was heated to 60°C in a water bath, and the marigold extract was completely dispersed in the molten monoglyceride. Deionized water was then added and mixed at a speed of 600 rpm for 20 min. After high-speed dispersion at a speed of 20,000 rpm for 1 min, high-pressure homogenization was performed at 10°C for 3 times. The uniform suspension was quickly cooled to 10°C in an ice water bath, and then the particles were filtered and air-dried at 10°C for 3 h to obtain the decontamination particles. (4) In a mixing kettle, water is added and heated to 70° C., and alkyl glucoside and cocamidopropyl betaine are added under stirring at a speed of 400 rpm, and then sorbitol and phenoxyethanol are added, and stirred for 2 hours; the temperature is lowered to 38° C., and amylase, protease, antibacterial particles, and decontamination particles are added, and stirred for 40 minutes to prepare laundry detergent.

3. The method for preparing a highly efficient decontamination laundry detergent according to claim 2, characterized in that: The silver ion concentration in the silver ammonium solution in step (1) is 10 μg / mL-50 μg / mL.

4. The method for preparing a highly efficient decontamination laundry detergent according to claim 2, characterized in that: During the spray drying in step (1), the spray inlet air temperature is 140-180°C, the outlet air temperature is 80-100°C, the atomizer frequency is 180-200Hz, the cooling air temperature is 16-20°C, and the feed temperature is 50-60°C.

5. The method for preparing a highly efficient decontamination laundry detergent according to claim 2, characterized in that: The preparation process of the amino silicon dioxide in the step (2) is as follows: weigh 1 part of silicon dioxide and add it to 50 parts of deionized water, add an appropriate amount of glacial acetic acid solution to adjust the pH value of the mixed solution to 4.0; add 0.03-0.11 parts of γ-aminopropyltriethoxysilane dropwise in an 80° C. water bath, cool and reflux for reaction for 4 hours; after the reaction is completed, wash with anhydrous ethanol for 3 times, separate the lower layer of emulsion, and place it in a drying oven at 50° C. for 2 hours to prepare amino silicon dioxide.

6. The method for preparing a highly efficient decontamination laundry detergent according to claim 5, characterized in that: The concentration of the glacial acetic acid is 10%.

7. The method for preparing a highly efficient decontamination laundry detergent according to claim 2, characterized in that: The marigold extract in step (3) is oil-soluble.

8. The method for preparing a highly efficient decontamination laundry detergent according to claim 2, characterized in that: The homogenization pressure in step (3) is 60-80 MPa.

9. The method for preparing a highly efficient decontamination laundry detergent according to claim 2, characterized in that: In the step (3), the mass ratio of monoglyceride, oil-soluble marigold extract and deionized water is 5:0.5-1:5-10.

10. The method for preparing a highly efficient decontamination laundry detergent according to claim 2, characterized in that: The laundry detergent in step (4) is composed of the following components in weight percentage: 20% alkyl glycoside, 10% cocamidopropyl betaine, 0.1-0.5% protease, 0.1-0.5% amylase, 2-6% antibacterial particles, 2-6% decontamination particles, 2-5% sorbitol, 0.1-0.5% phenoxyethanol, and the balance deionized water.

Images