Laundry detergent with long-acting fragrance

Abstract

The invention relates to a long-acting fragrance-retaining laundry detergent, and relates to the technical field of laundry detergents, the long-acting fragrance-retaining laundry detergent comprises the following components by weight: 1-5% of modified diatomite, 15-35% of a surfactant, 0.1-1.5% of essence, 0.05-0.15% of a fixative, 1-3% of a water-soluble auxiliary agent, 1-3% of sodium chloride, 0.1-0.5% of a chelating agent, 0.2-0.8% of citric acid, and the balance of water; the modified diatomite is obtained by taking diatomite as a raw material and carrying out ultrasonic-magnetic field coupling treatment; the fixative is composed of patchouli oil and galaxolide in a weight ratio of (5-9): (1-3). According to the invention, through well-designed components and an interaction mechanism among the components, dual effects of super-strong decontamination and long-acting fragrance retention are realized; meanwhile, the diatomite is used as a natural decontamination component, is harmless to human bodies and the environment, and conforms to the concept of green washing.

Description

Technical Field

[0001] The invention relates to the technical field of laundry detergents, in particular to a long-lasting fragrance-retaining laundry detergent. Background Art

[0002] In modern daily life, laundry detergent is an important component of household cleaning products. Its performance and user experience are directly related to consumer satisfaction and loyalty. With the improvement of living standards, consumers' demand for laundry detergent is no longer limited to the basic function of decontamination, but pays more attention to the environmental protection, mildness and added value of the product, such as the fragrance effect. Therefore, the development of a laundry detergent that can effectively remove dirt and provide a long-lasting fragrance effect has become a research hotspot in the industry.

[0003] Traditional laundry detergents mainly rely on surfactants to achieve their decontamination function. Although they perform well in cleaning, they are often insufficient in terms of fragrance retention. Many laundry detergents can emit a pleasant fragrance at the beginning of washing, but as time goes by, the fragrance evaporates quickly and cannot last for a long time, making it difficult to meet consumers' expectations for long-lasting fragrance on clothes. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a long-lasting fragrance laundry detergent.

[0005] The present invention provides a long-lasting fragrance laundry detergent, which comprises the following components in terms of weight percentage:

[0006] Modified diatomaceous earth 1-5%, surfactant 15-35%, essence 0.1-1.5%, fixative 0.05-0.15%, hydrotrope 1-3%, sodium chloride 1-3%, chelating agent 0.1-0.5%, citric acid 0.2-0.8%, the balance is water;

[0007] The modified diatomaceous earth is obtained by using diatomaceous earth as raw material and undergoing ultrasound-magnetic field coupling treatment;

[0008] The fixative is composed of patchouli oil and galaxolide in a weight ratio of (5-9):(1-3).

[0009] Furthermore, the long-lasting fragrance laundry detergent comprises the following components in percentage by weight:

[0010] Modified diatomaceous earth 3.5%, surfactant 28%, flavor 0.6%, fixative 0.1%, hydrotrope 2.5%, sodium chloride 1.5%, chelating agent 0.2%, citric acid 0.6%, and the balance is water.

[0011] Furthermore, the working condition parameters of the ultrasound-magnetic field coupling treatment include: ultrasound power of 540-620W, magnetic field strength of 400-600mT, and treatment time of 1-5 minutes.

[0012] Furthermore, the working condition parameters of the ultrasound-magnetic field coupling treatment include: ultrasound power of 575W, magnetic field strength of 550mT, and treatment time of 1 to 5 minutes.

[0013] Furthermore, the surfactant is composed of sodium dodecylbenzene sulfonate and fatty alcohol polyoxyethylene (7) ether in a weight ratio of (3-5):(1-3).

[0014] Furthermore, the flavor includes lemon flavor.

[0015] Furthermore, the hydrotrope is composed of sorbitol, glycerol and PEG600 in a weight ratio of (1-2):(1-2):(1-2).

[0016] Furthermore, the chelating agent includes at least one of H501, EDTA-4Na, and EDTA-2Na.

[0017] Furthermore, the preparation method of the long-lasting fragrance laundry detergent comprises the following steps:

[0018] Mixing the components of the long-lasting fragrance laundry detergent to obtain a mixture;

[0019] The mixture is subjected to freeze-thaw cycle treatment to obtain the long-lasting fragrance laundry detergent.

[0020] Furthermore, the working condition parameters of the freeze-thaw cycle treatment include: a freezing temperature of -50 to -60°C, a freezing time of 45 to 75 minutes, a thawing temperature of 28 to 35°C, and a freeze-thaw cycle treatment number of 5 to 10 times.

[0021] The above technical solution provided by the embodiment of the present invention has at least the following advantages compared with the prior art:

[0022] The embodiment of the present invention provides a long-lasting fragrance laundry detergent. The present invention uses carefully designed components and interaction mechanisms between the components. On the one hand, the modified diatomaceous earth obtained by ultrasonic-magnetic field coupling treatment is used as a decontamination component. On the other hand, by introducing components such as a fixative, the dual effects of super strong decontamination and long-lasting fragrance are achieved. At the same time, using diatomaceous earth as a natural decontamination component is harmless to the human body and the environment, and conforms to the concept of green washing. Specifically:

[0023] 1. Modified diatomaceous earth: The porous structure of diatomaceous earth gives it a strong adsorption capacity, which can adsorb and fix stain molecules. After ultrasonic-magnetic field coupling treatment, the surface activity of modified diatomaceous earth increases, and its affinity with stains is enhanced, thereby improving the decontamination efficiency. In addition, the natural ingredients of diatomaceous earth are harmless to the human body and the environment, which conforms to the concept of green washing.

[0024] 2. Surfactants: Surfactants and modified diatomaceous earth work together, the former breaks down stains, and the latter adsorbs and fixes them, which together enhance the detergent's ability to remove stains. In addition, surfactants can also help fragrance ingredients such as flavors to be better dispersed and dissolved in water, laying the foundation for long-lasting fragrance.

[0025] 3. Fragrance and fixative: The fixative is composed of patchouli oil and galaxolide in a specific ratio and has an excellent fixative effect. Patchouli is known for its unique aroma and long-lasting fragrance retention, while galaxolide can enhance the layering and richness of the aroma. The combination of the two not only enhances the aroma expression of the laundry detergent, but also achieves long-lasting fragrance retention. Fragrance and fixative work synergistically, with the fragrance providing the base aroma and the fixative making the aroma more lasting and rich through its adsorption capacity and excitation effect. This synergistic mechanism ensures that the laundry detergent continues to emit a pleasant aroma during use and after washing.

[0026] 4. Hydrotropes, sodium chloride, chelating agents, citric acid: Hydrotropes: increase the solubility of each component in water to ensure that the laundry detergent can be quickly and evenly dispersed on the surface of clothing during use; Sodium chloride: adjusts the ionic strength of the laundry detergent, which helps to improve the decontamination effect and improve the feel of the clothes after washing; Chelating agents: combine with metal ions to form stable complexes to prevent metal ions from damaging clothing and washing equipment, and also help to improve the decontamination effect. Citric acid: as a pH regulator, it keeps the pH value of the laundry detergent within an appropriate range to protect clothing fibers and washing equipment, and helps to improve the decontamination effect.

[0027] In summary, the long-lasting fragrance laundry detergent of the present invention achieves the dual effects of decontamination and long-lasting fragrance through carefully designed components and their interaction mechanisms. Modified diatomaceous earth and surfactants work together to remove dirt and ensure efficient cleaning; the essence and fixative work together to enhance the fragrance expression and durability; auxiliary ingredients such as hydrotropes, sodium chloride, chelating agents and citric acid further optimize the washing performance and user experience of the laundry detergent. The components work together to form this efficient, environmentally friendly, long-lasting fragrance laundry detergent product. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.

[0030] The present invention provides a long-lasting fragrance laundry detergent, which comprises the following components in terms of weight percentage:

[0031] Modified diatomaceous earth 1-5%, surfactant 15-35%, essence 0.1-1.5%, fixative 0.05-0.15%, hydrotrope 1-3%, sodium chloride 1-3%, chelating agent 0.1-0.5%, citric acid 0.2-0.8%, the balance is water;

[0032] The modified diatomaceous earth is obtained by using diatomaceous earth as raw material and undergoing ultrasound-magnetic field coupling treatment;

[0033] The fixative is composed of patchouli oil and galaxolide in a weight ratio of (5-9):(1-3).

[0034] The embodiment of the present invention provides a long-lasting fragrance laundry detergent. The present invention uses carefully designed components and interaction mechanisms between the components. On the one hand, the modified diatomaceous earth obtained by ultrasonic-magnetic field coupling treatment is used as a decontamination component. On the other hand, by introducing components such as a fixative, the dual effects of super strong decontamination and long-lasting fragrance are achieved. At the same time, using diatomaceous earth as a natural decontamination component is harmless to the human body and the environment, and conforms to the concept of green washing. Specifically:

[0035] 1. Modified diatomaceous earth: The porous structure of diatomaceous earth gives it a strong adsorption capacity, which can adsorb and fix stain molecules. After ultrasonic-magnetic field coupling treatment, the surface activity of modified diatomaceous earth increases, and its affinity with stains is enhanced, thereby improving the decontamination efficiency. In addition, the natural ingredients of diatomaceous earth are harmless to the human body and the environment, which conforms to the concept of green washing.

[0036] 2. Surfactants: Surfactants and modified diatomaceous earth work together, the former breaks down stains, and the latter adsorbs and fixes them, which together enhance the detergent's ability to remove stains. In addition, surfactants can also help fragrance ingredients such as flavors to be better dispersed and dissolved in water, laying the foundation for long-lasting fragrance.

[0037] 3. Fragrance and fixative: The fixative is composed of patchouli oil and galaxolide in a specific ratio and has an excellent fixative effect. Patchouli is known for its unique aroma and long-lasting fragrance retention, while galaxolide can enhance the layering and richness of the aroma. The combination of the two not only enhances the aroma expression of the laundry detergent, but also achieves long-lasting fragrance retention. Fragrance and fixative work synergistically, with the fragrance providing the base aroma and the fixative making the aroma more lasting and rich through its adsorption capacity and excitation effect. This synergistic mechanism ensures that the laundry detergent continues to emit a pleasant aroma during use and after washing.

[0038] 4. Hydrotropes, sodium chloride, chelating agents, citric acid: Hydrotropes: increase the solubility of each component in water to ensure that the laundry detergent can be quickly and evenly dispersed on the surface of clothing during use; Sodium chloride: adjusts the ionic strength of the laundry detergent, which helps to improve the decontamination effect and improve the feel of the clothes after washing; Chelating agents: combine with metal ions to form stable complexes to prevent metal ions from damaging clothing and washing equipment, and also help to improve the decontamination effect. Citric acid: as a pH regulator, it keeps the pH value of the laundry detergent within an appropriate range to protect clothing fibers and washing equipment, and helps to improve the decontamination effect.

[0039] In summary, the long-lasting fragrance laundry detergent of the present invention achieves the dual effects of decontamination and long-lasting fragrance through carefully designed components and their interaction mechanisms. Modified diatomaceous earth and surfactants work together to remove dirt and ensure efficient cleaning; the essence and fixative work together to enhance the fragrance expression and durability; auxiliary ingredients such as hydrotropes, sodium chloride, chelating agents and citric acid further optimize the washing performance and user experience of the laundry detergent. The components work together to form this efficient, environmentally friendly, long-lasting fragrance laundry detergent product.

[0040] In the present invention, patchouli oil can be directly selected from commercial products such as those with a CAS number of 120-47-8, and the CAS registration number of galaxolide is 1222-05-5.

[0041] The ultrasonic-magnetic field coupling treatment in the present invention can be directly performed using ultrasonic-magnetic field coupling treatment equipment or according to the ultrasonic-magnetic field coupling treatment process disclosed in the prior art.

[0042] In some specific embodiments, the long-lasting fragrance laundry detergent comprises the following components by weight percentage:

[0043] Modified diatomaceous earth 3.5%, surfactant 28%, flavor 0.6%, fixative 0.1%, hydrotrope 2.5%, sodium chloride 1.5%, chelating agent 0.2%, citric acid 0.6%, and the balance is water.

[0044] In some specific embodiments, the working condition parameters of the ultrasound-magnetic field coupling treatment include: ultrasound power of 540-620 W, magnetic field strength of 400-600 mT, and treatment time of 1-5 minutes.

[0045] In some specific embodiments, the working condition parameters of the ultrasound-magnetic field coupling treatment include: ultrasound power of 575W, magnetic field strength of 550mT, and treatment time of 1 to 5 minutes.

[0046] In some specific embodiments, the surfactant is composed of sodium dodecylbenzene sulfonate and fatty alcohol polyoxyethylene (7) ether in a weight ratio of (3-5):(1-3).

[0047] In some specific embodiments, the flavor includes lemon flavor.

[0048] In some specific embodiments, the hydrotrope is composed of sorbitol, glycerol and PEG600 in a weight ratio of (1-2):(1-2):(1-2).

[0049] In some specific embodiments, the chelating agent includes at least one of H501, EDTA-4Na, and EDTA-2Na.

[0050] In some specific embodiments, the preparation method of the long-lasting fragrance laundry detergent comprises the following steps:

[0051] Mixing the components of the long-lasting fragrance laundry detergent to obtain a mixture;

[0052] The mixture is subjected to freeze-thaw cycle treatment to obtain the long-lasting fragrance laundry detergent.

[0053] In the present invention, the freeze-thaw cycle treatment is used to utilize the "cold expansion" effect to improve the compatibility between components and the penetration of fragrance components, thereby further improving the fragrance retention and decontamination capabilities of the obtained laundry detergent; at the same time, the stability of the entire laundry detergent system is improved.

[0054] In some specific embodiments, the working condition parameters of the freeze-thaw cycle treatment include: a freezing temperature of -50 to -60°C, a freezing time of 45 to 75 minutes, a thawing temperature of 28 to 35°C, and a freeze-thaw cycle treatment number of 5 to 10 times.

[0055] It should be noted that, unless otherwise specified or specifically described, the components involved in the long-lasting fragrance laundry detergent provided in the embodiments of the present invention can directly use commercially available products; the operating steps involved, unless otherwise specified or described, can be performed in a conventional manner in the art or using existing equipment in the art, and will not be described one by one here.

[0056] The present invention will be further described below in conjunction with specific examples. It should be understood that these examples are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. The experimental methods in the following examples that do not specify specific conditions are usually measured according to national standards. If there is no corresponding national standard, then the conditions recommended by the manufacturer are followed.

[0057] Example 1

[0058] This example provides a long-lasting fragrance laundry detergent, which includes the following components in terms of weight percentage:

[0059] Modified diatomaceous earth 3.5%, surfactant 28%, essence 0.6%, fixative 0.1%, hydrotrope 2.5%, sodium chloride 1.5%, chelating agent 0.2%, citric acid 0.6%, the balance is water;

[0060] The modified diatomaceous earth is obtained by using diatomaceous earth as raw material and undergoing ultrasonic-magnetic field coupling treatment. The working condition parameters of the ultrasonic-magnetic field coupling treatment include: ultrasonic power of 575W, magnetic field intensity of 550mT, and treatment time of 3 minutes;

[0061] The surfactant is composed of sodium dodecylbenzene sulfonate and fatty alcohol polyoxyethylene (7) ether in a weight ratio of 4.5:2;

[0062] The flavor is lemon flavor;

[0063] The fixative is composed of patchouli oil and galaxolide in a weight ratio of 7:2;

[0064] The hydrotrope is composed of sorbitol, glycerol and PEG600 in a weight ratio of 1:2:2;

[0065] The chelating agent is EDTA-2Na.

[0066] The preparation method of the long-lasting fragrance laundry detergent comprises the following steps:

[0067] Mixing the components of the long-lasting fragrance laundry detergent to obtain a mixture;

[0068] The mixture is subjected to a freeze-thaw cycle treatment, firstly frozen at a freezing temperature of -55°C for 60 minutes, then restored to a liquid state at a thawing temperature of 30°C, and the freeze-thaw cycle is repeated 7 times to obtain the long-lasting fragrance-retaining laundry detergent.

[0069] Example 2

[0070] This example provides a long-lasting fragrance laundry detergent, which includes the following components in terms of weight percentage:

[0071] Modified diatomaceous earth 1%, surfactant 35%, essence 0.1%, fixative 0.15%, hydrotrope 1%, sodium chloride 1%, chelating agent 0.1%, citric acid 0.2%, the balance is water;

[0072] The modified diatomaceous earth is obtained by using diatomaceous earth as raw material and undergoing ultrasonic-magnetic field coupling treatment. The working condition parameters of the ultrasonic-magnetic field coupling treatment include: ultrasonic power of 540W, magnetic field intensity of 400mT, and treatment time of 5 minutes;

[0073] The surfactant is composed of sodium dodecylbenzene sulfonate and fatty alcohol polyoxyethylene (7) ether in a weight ratio of 3:1;

[0074] The flavor is lemon flavor;

[0075] The fixative is composed of patchouli oil and galaxolide in a weight ratio of 5:1;

[0076] The hydrotrope is composed of sorbitol, glycerol and PEG600 in a weight ratio of 1:2:2;

[0077] The chelating agent is EDTA-2Na.

[0078] The preparation method of the long-lasting fragrance laundry detergent comprises the following steps:

[0079] Mixing the components of the long-lasting fragrance laundry detergent to obtain a mixture;

[0080] The mixture is subjected to a freeze-thaw cycle treatment, firstly frozen at a freezing temperature of -55°C for 60 minutes, then restored to a liquid state at a thawing temperature of 30°C, and the freeze-thaw cycle is repeated 7 times to obtain the long-lasting fragrance-retaining laundry detergent.

[0081] Example 3

[0082] This example provides a long-lasting fragrance laundry detergent, which includes the following components in terms of weight percentage:

[0083] Modified diatomaceous earth 5%, surfactant 15%, essence 1.5%, fixative 0.05%, hydrotrope 3%, sodium chloride 3%, chelating agent 0.5%, citric acid 0.8%, the balance is water;

[0084] The modified diatomaceous earth is obtained by using diatomaceous earth as raw material and undergoing ultrasonic-magnetic field coupling treatment. The working condition parameters of the ultrasonic-magnetic field coupling treatment include: ultrasonic power of 620W, magnetic field intensity of 600mT, and treatment time of 1 minute;

[0085] The surfactant is composed of sodium dodecylbenzene sulfonate and fatty alcohol polyoxyethylene (7) ether in a weight ratio of 5:3;

[0086] The flavor is lemon flavor;

[0087] The fixative is composed of patchouli oil and galaxolide in a weight ratio of 5:1;

[0088] The hydrotrope is composed of sorbitol, glycerol and PEG600 in a weight ratio of 1:2:2;

[0089] The chelating agent is EDTA-2Na.

[0090] The preparation method of the long-lasting fragrance laundry detergent comprises the following steps:

[0091] Mixing the components of the long-lasting fragrance laundry detergent to obtain a mixture;

[0092] The mixture is subjected to a freeze-thaw cycle treatment, firstly frozen at a freezing temperature of -55°C for 60 minutes, then restored to a liquid state at a thawing temperature of 30°C, and the freeze-thaw cycle is repeated 7 times to obtain the long-lasting fragrance-retaining laundry detergent.

[0093] Comparative Example 1

[0094] This example provides a long-lasting fragrance laundry detergent and a preparation method thereof, which is different from Example 1 only in that unmodified diatomaceous earth is used.

[0095] The above example provides a long-lasting fragrance laundry detergent, which comprises the following components in terms of weight percentage:

[0096] Diatomaceous earth 3.5%, surfactant 28%, flavor 0.6%, fixative 0.1%, hydrotrope 2.5%, sodium chloride 1.5%, chelating agent 0.2%, citric acid 0.6%, balance water;

[0097] The surfactant is composed of sodium dodecylbenzene sulfonate and fatty alcohol polyoxyethylene (7) ether in a weight ratio of 4.5:2;

[0098] The flavor is lemon flavor;

[0099] The fixative is composed of patchouli oil and galaxolide in a weight ratio of 7:2;

[0100] The hydrotrope is composed of sorbitol, glycerol and PEG600 in a weight ratio of 1:2:2;

[0101] The chelating agent is EDTA-2Na.

[0102] The preparation method of the long-lasting fragrance laundry detergent comprises the following steps:

[0103] Mixing the components of the long-lasting fragrance laundry detergent to obtain a mixture;

[0104] The mixture is subjected to a freeze-thaw cycle treatment, firstly frozen at a freezing temperature of -55°C for 60 minutes, then restored to a liquid state at a thawing temperature of 30°C, and the freeze-thaw cycle is repeated 7 times to obtain the long-lasting fragrance-retaining laundry detergent.

[0105] Comparative Example 2

[0106] This example provides a long-lasting fragrance laundry detergent and a preparation method thereof, which is different from Example 1 only in that no freeze-thaw cycle treatment is performed during the preparation of the long-lasting fragrance laundry detergent.

[0107] The above example provides a long-lasting fragrance laundry detergent, which comprises the following components in terms of weight percentage:

[0108] Modified diatomaceous earth 3.5%, surfactant 28%, essence 0.6%, fixative 0.1%, hydrotrope 2.5%, sodium chloride 1.5%, chelating agent 0.2%, citric acid 0.6%, the balance is water;

[0109] The modified diatomaceous earth is obtained by using diatomaceous earth as raw material and undergoing ultrasonic-magnetic field coupling treatment. The working condition parameters of the ultrasonic-magnetic field coupling treatment include: ultrasonic power of 575W, magnetic field intensity of 550mT, and treatment time of 3 minutes;

[0110] The surfactant is composed of sodium dodecylbenzene sulfonate and fatty alcohol polyoxyethylene (7) ether in a weight ratio of 4.5:2;

[0111] The flavor is lemon flavor;

[0112] The fixative is composed of patchouli oil and galaxolide in a weight ratio of 7:2;

[0113] The hydrotrope is composed of sorbitol, glycerol and PEG600 in a weight ratio of 1:2:2;

[0114] The chelating agent is EDTA-2Na.

[0115] The preparation method of the long-lasting fragrance laundry detergent comprises the following steps:

[0116] The components in the long-lasting fragrance laundry detergent are mixed to obtain the long-lasting fragrance laundry detergent.

[0117] Test Case

[0118] In this example, the laundry detergents provided in Examples 1 to 3 and Comparative Examples 1 to 2 were subjected to performance tests.

[0119] 1) Decontamination ability test: The national standard leather cloth JB-03 was used, the washing concentration of the standard washing powder was 2g / L as a reference, and the washing concentration of the test washing liquid was selected as 1g / L for the decontamination ability test. The test results are shown in Table 1.

[0120] Table 1

[0121] Test samples Decontamination ratio (JB-03) Example 1 2.51 Example 2 1.94 Example 3 2.25 Comparative Example 1 1.09 Comparative Example 2 1.28

[0122] 2) Fragrance effect test: The laundry detergents obtained in Examples 1 to 3 of the present invention and Comparative Examples 1 to 2 were evaluated and scored according to the fragrance effect test method disclosed in the existing patent CN115710539 A. The total score is 40. The higher the score, the better the lasting fragrance effect of the towel (or shirt) after washing with the sample. The test results are shown in Table 2.

[0123] Table 2

[0124] Test samples Fragrance effect rating Example 1 39 Example 2 35 Example 3 36 Comparative Example 1 30 Comparative Example 2 28

[0125] It can be seen from Table 1 and Table 2 that, compared with Comparative Examples 1 to 2, the laundry detergents provided by Examples 1 to 3 of the present invention have the characteristics of strong decontamination ability and good fragrance retention effect, achieving the dual effects of super strong decontamination and long-lasting fragrance retention.

[0126] In summary, the present invention provides a long-lasting fragrance laundry detergent, which achieves the dual effects of super strong decontamination and long-lasting fragrance through carefully designed components and the interaction mechanism between the components; at the same time, diatomaceous earth is used as a natural decontamination ingredient, which is harmless to the human body and the environment and conforms to the concept of green washing.

[0127] Various embodiments of the present invention may be presented in the form of a range; it should be understood that the description in the form of a range is only for convenience and brevity, and should not be understood as a rigid limitation on the scope of the present invention; therefore, the range description should be considered to have specifically disclosed all possible sub-ranges and single numerical values ​​within the range. For example, the range description from 1 to 6 should be considered to have specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5 and 6, which apply regardless of the range. In addition, whenever a numerical range is indicated herein, it is meant to include any cited number (fractional or integer) within the indicated range.

[0128] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A long-lasting fragrance laundry detergent, characterized in that: The long-lasting fragrance laundry detergent comprises the following components in percentage by weight: Modified diatomaceous earth 1-5%, surfactant 15-35%, essence 0.1-1.5%, fixative 0.05-0.15%, hydrotrope 1-3%, sodium chloride 1-3%, chelating agent 0.1-0.5%, citric acid 0.2-0.8%, the balance is water; The modified diatomaceous earth is obtained by using diatomaceous earth as raw material and undergoing ultrasound-magnetic field coupling treatment; The fixative is composed of patchouli oil and galaxolide in a weight ratio of (5-9):(1-3).

2. The long-lasting fragrance laundry detergent according to claim 1, characterized in that: In terms of weight percentage, the long-lasting fragrance laundry detergent comprises the following components: Modified diatomaceous earth 3.5%, surfactant 28%, flavor 0.6%, fixative 0.1%, hydrotrope 2.5%, sodium chloride 1.5%, chelating agent 0.2%, citric acid 0.6%, and the balance is water.

3. The long-lasting fragrance laundry detergent according to claim 1, characterized in that: The working condition parameters of the ultrasound-magnetic field coupling treatment include: ultrasound power of 540-620W, magnetic field strength of 400-600mT, and treatment time of 1-5 minutes.

4. The long-lasting fragrance laundry detergent according to claim 1, characterized in that: The working condition parameters of the ultrasound-magnetic field coupling treatment include: ultrasound power of 575W, magnetic field strength of 550mT, and treatment time of 1 to 5 minutes.

5. The long-lasting fragrance laundry detergent according to claim 1, characterized in that: The surfactant is composed of sodium dodecylbenzene sulfonate and fatty alcohol polyoxyethylene (7) ether in a weight ratio of (3-5):(1-3).

6. The long-lasting fragrance laundry detergent according to claim 1, characterized in that: The flavor includes lemon flavor.

7. The long-lasting fragrance laundry detergent according to claim 1, characterized in that: The hydrotrope is composed of sorbitol, glycerol and PEG600 in a weight ratio of (1-2):(1-2):(1-2).

8. The long-lasting fragrance laundry detergent according to claim 1, characterized in that: The chelating agent includes at least one of H501, EDTA-4Na and EDTA-2Na.

9. The long-lasting fragrance laundry detergent according to any one of claims 1 to 8, characterized in that: The preparation method of the long-lasting fragrance laundry detergent comprises the following steps: Mixing the components of the long-lasting fragrance laundry detergent to obtain a mixture; The mixture is subjected to freeze-thaw cycle treatment to obtain the long-lasting fragrance laundry detergent.

10. The long-lasting fragrance laundry detergent according to claim 9, characterized in that: The working condition parameters of the freeze-thaw cycle treatment include: a freezing temperature of -50 to -60°C, a freezing time of 45 to 75 minutes, a thawing temperature of 28 to 35°C, and a freeze-thaw cycle treatment number of 5 to 10 times.