Detergent essence of acarus-killing antibacterial essential oil and application of detergent essence

Abstract

The invention discloses a detergent essence of acarus killing and bacteriostasis essential oil and application of the detergent essence, and belongs to the technical field of essence. The detergent essence containing the acarus killing and bacteriostasis essential oil is prepared from the following components in parts by mass: 20 to 30 parts of tea tree essential oil, 15 to 25 parts of lemon eucalyptus essential oil, 10 to 20 parts of lavender essential oil, 5 to 10 parts of thyme essential oil, 5 to 10 parts of D-limonene, 3 to 8 parts of an acarus killing and bacteriostasis agent, 3 to 7 parts of a stabilizer, 2 to 5 parts of an emulsifier and 0.5 to 1 part of an antioxidant. The detergent essence not only can provide long-acting antibacterial protection with high mite rate, broad spectrum and no drug resistance, but also can endow a product with fresh and pleasant clean fragrance, and improves sensory experience.

Description

Technical Field

[0001] This invention belongs to the field of fragrance technology, specifically relating to a detergent fragrance containing mite-removing and antibacterial essential oil and its application. Background Technology

[0002] Detergent fragrances are a class of daily chemical additives that combine cleaning and fragrance with hygiene protection. They are typically formulated from bioactive natural plant essential oils and are widely used in laundry detergents, fabric softeners, fabric sprays, and household cleaning products. With increasing demands for home hygiene, especially given growing concerns about dust mite allergies and skin sensitivities, detergents with mite-removing and antibacterial functions have become a mainstream demand in the daily chemical market. Against this backdrop, mite-removing and antibacterial detergent fragrances have emerged. Their main function is to impart a fresh and pleasant scent to fabrics while utilizing the active ingredients such as terpenes and phenols in the essential oils to inhibit or kill dust mites, bacteria, and fungi, thereby improving the hygiene of clothing and the home environment. They are particularly suitable for infants, people with sensitive skin, and areas prone to mites due to high humidity.

[0003] However, currently available commercially available fragrances of this type still have significant shortcomings: First, the concentration of active ingredients in essential oils is low and they are easily volatile, resulting in significant loss during washing and rinsing, making it difficult for them to remain on fabrics for long, leading to short-lived and unstable mite-killing and antibacterial effects; second, to achieve considerable efficacy, high dosages are often required, which is not only costly but may also cause skin irritation or excessively strong odors; third, microorganisms easily develop adaptability to single active ingredients (such as carvacrol and thymol), leading to a decrease in antibacterial effects with long-term use; fourth, essential oils themselves are chemically unstable and easily oxidize and deteriorate in light, oxygen, or alkaline washing environments, further weakening their antibacterial function. In summary, existing mite-killing and antibacterial detergent fragrances generally suffer from common problems such as weak efficacy, short-lasting effect, poor stability, reliance on high dosages, or the presence of unsafe bactericides, making it difficult to meet consumers' comprehensive needs for functional detergent products. Therefore, it is essential to develop a new detergent fragrance based on mite-killing and antibacterial essential oils. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a detergent fragrance containing mite-removing and antibacterial essential oil and its application.

[0005] The first aspect of this invention is to provide a detergent fragrance containing mite-repellent and antibacterial essential oils, comprising the following components in parts by weight: 20-30 parts tea tree essential oil, 15-25 parts lemon eucalyptus essential oil, 10-20 parts lavender essential oil, 5-10 parts thyme essential oil, 5-10 parts D-limonene, 3-8 parts mite-repellent and antibacterial agent, 3-7 parts stabilizer, 2-5 parts emulsifier, and 0.5-1 part antioxidant; The mite-removing and antibacterial agent is prepared by the following steps: S1: Add zinc phthalocyanine sulfonate and UHP to solvent one and sonicate to form a suspension; S2: Mix tetraethyl orthosilicate and solvent II, add suspension, ammonia and deionized water to react, and take the precipitate after the reaction is complete; S3: Wash the precipitate, acidify and dry it to obtain the mite-removing and antibacterial agent.

[0006] It should be noted that this invention creatively forms SiO2 microspheres with a porous network structure by catalyzing the hydrolysis and condensation of tetraethyl orthosilicate (TEOS) in an ethanol-water system with ammonia, while simultaneously embedding ZnPc and UHP within them. UHP is a hydrogen peroxide-urea complex, CAS number 124-43-6; zinc phthalocyanine CAS number 14320-04-8.

[0007] In some embodiments, zinc phthalocyanine sulfonate is prepared by the following steps: concentrated sulfuric acid is added dropwise to zinc phthalocyanine, the sulfonation reaction is carried out, the precipitate is collected, and the sulfonated zinc phthalocyanine is obtained by washing and drying.

[0008] In some embodiments, the ratio of zinc phthalocyanine to concentrated sulfuric acid is 1g:5mL; the dropping temperature is <10℃; the sulfonation reaction temperature is 60±5℃; and the sulfonation reaction time is 2-3h.

[0009] In some embodiments, the mass ratio of zinc sulfonate phthalocyanine, UHP, and tetraethyl orthosilicate is 8:1-1.5:3-5.

[0010] In some embodiments, solvent one and solvent two are both selected from at least one of ethanol and isopropanol.

[0011] In some embodiments, the ratio of solvent one to zinc phthalocyanine sulfonate is 1 mL: 3-5 mg; the ratio of solvent two to tetraethyl orthosilicate is 5 mL: 0.5-1.5 g.

[0012] In some embodiments, the volume ratio of solvent II, ammonia, and deionized water is 5:1 to 3:0.1.

[0013] In some embodiments, in S1, the ultrasonic treatment is performed by ultrasonication at a power of 180-220W for 15-20 minutes; in S2, the reaction is performed by stirring at room temperature and in the dark for 20-24 hours; and in S3, acidification is performed by adding acid to the final wash to make the pH of the system 6-7.

[0014] In some embodiments, the stabilizer is selected from at least one of glycerol and phenylethyl alcohol; the emulsifier is selected from at least one of alkyl polysaccharide glycoside and sucrose stearate; and the antioxidant is selected from at least one of vitamin E and tea polyphenols.

[0015] The second aspect of this invention is to provide a detergent fragrance containing mite-removing and antibacterial essential oil for use in the detergent field.

[0016] This invention does not limit the preparation method of detergent fragrance containing mite-removing and antibacterial essential oils; it can be prepared by mixing in one step or by adding and mixing in stages.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention provides a detergent fragrance containing an anti-mite and antibacterial agent. Zinc phthalocyanine (ZnPc) is used as a peroxidase-mimicking catalyst, and urea hydrogen peroxide adduct (UHP) is used as a solid hydrogen peroxide precursor, both encapsulated in an in-situ generated SiO2 nanomatrix. When ambient humidity increases (e.g., during washing, contact with sweat, or in high-humidity climates), it is activated. Moisture permeates into the SiO2 channels, causing UHP to slowly release a low concentration of H2O2. ZnPc then catalyzes the reaction of H2O2 with dissolved oxygen, efficiently generating reactive oxygen species. These highly reactive oxygen species can oxidize the cell membrane lipids, proteins, and DNA of mites and bacteria, achieving a broad-spectrum, rapid, and irreversible killing effect. The introduction of sulfonated zinc phthalocyanine improves its dispersibility in polar solvents, ensuring efficient encapsulation; while the SiO2 layer not only effectively isolates the external environment, preventing premature decomposition of UHP and protecting ZnPc from photo / thermal degradation, but also firmly adheres to the fabric fibers.

[0018] 2. The detergent fragrance of the mite-removing and antibacterial essential oil provided by this invention combines natural plant essential oils with mite-removing and antibacterial agents in a synergistic compound. It not only provides high mite control, broad-spectrum, and long-lasting antibacterial protection without drug resistance, but also gives the product a fresh and pleasant clean fragrance, enhancing the sensory experience. It does not rely on high concentrations of essential oils to achieve antibacterial function, overcoming the shortcomings of traditional fragrances such as weak efficacy, short duration of effect, poor stability, and the need for high addition amounts. It is safe and durable, and can be widely used in laundry detergents, fabric softeners, and fabric care products. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to specific embodiments.

[0020] Example 1 A detergent fragrance containing mite-repellent and antibacterial essential oils comprises the following components in parts by weight: 25 parts tea tree essential oil, 20 parts lemon eucalyptus essential oil, 15 parts lavender essential oil, 8 parts thyme essential oil, 8 parts D-limonene, 5 parts mite-repellent and antibacterial agent, 5 parts glycerin, 3 parts alkyl polysaccharide glycoside, and 0.8 parts vitamin E. The mite-removing and antibacterial agent is prepared by the following steps: S1: Add zinc sulfonate phthalocyanine and UHP to ethanol and sonicate at 200W for 18 minutes to form a suspension; wherein, the mass ratio of zinc sulfonate phthalocyanine, UHP and tetraethyl orthosilicate is 8:1.2:4; the ratio of ethanol to zinc sulfonate phthalocyanine is 1mL:4mg. S2: Mix tetraethyl orthosilicate and ethanol, add suspension, ammonia and deionized water, stir and react for 22 h at room temperature and in the dark, and take the precipitate after the reaction is completed; the ratio of ethanol to tetraethyl orthosilicate is 5 mL: 1 g; the volume ratio of ethanol, ammonia and deionized water is 5:2:0.1. S3: Wash the precipitate and acidify it by adding acid to the final wash to make the pH of the system 6-7. Dry the precipitate to obtain the mite-removing and antibacterial agent.

[0021] The zinc phthalocyanine sulfonate was prepared by the following steps: zinc phthalocyanine was placed in an ice-water bath below 10°C and concentrated sulfuric acid was added dropwise. The sulfonation reaction was carried out at 60±5°C for 2.5 hours. After the reaction was completed, the precipitate was collected, washed, and dried to obtain the zinc phthalocyanine sulfonate. The ratio of zinc phthalocyanine sulfonate to concentrated sulfuric acid was 1 g: 5 mL.

[0022] Example 2 A detergent fragrance containing mite-repellent and antibacterial essential oils comprises the following components in parts by weight: 30 parts tea tree essential oil, 25 parts lemon eucalyptus essential oil, 20 parts lavender essential oil, 10 parts thyme essential oil, 10 parts D-limonene, 8 parts mite-repellent and antibacterial agent, 7 parts phenylethanol, 5 parts sucrose stearate, and 1 part tea polyphenols. The mite-removing and antibacterial agent is prepared by the following steps: S1: Add zinc sulfonate phthalocyanine and UHP to isopropanol and sonicate at 220W for 15min to form a suspension; wherein, the mass ratio of zinc sulfonate phthalocyanine, UHP and tetraethyl orthosilicate is 8:1.5:5; the ratio of isopropanol to zinc sulfonate phthalocyanine is 1mL:5mg. S2: Mix tetraethyl orthosilicate and isopropanol, add suspension, ammonia and deionized water, stir and react for 24 h at room temperature and in the dark, and take the precipitate after the reaction is completed; the ratio of isopropanol to tetraethyl orthosilicate is 5 mL: 1.5 g; the volume ratio of isopropanol, ammonia and deionized water is 5:3:0.1. S3: Wash the precipitate and acidify it by adding acid to the final wash to make the pH of the system 6-7. Dry the precipitate to obtain the mite-removing and antibacterial agent.

[0023] The zinc phthalocyanine sulfonate is prepared by the following steps: zinc phthalocyanine is placed in an ice-water bath below 10°C and concentrated sulfuric acid is added dropwise. The sulfonation reaction is carried out at 60±5°C for 3 hours. After the reaction is completed, the precipitate is collected, washed, and dried to obtain the zinc phthalocyanine sulfonate. The ratio of zinc phthalocyanine to concentrated sulfuric acid is 1g:5mL.

[0024] Example 3 A detergent fragrance containing mite-repellent and antibacterial essential oils comprises the following components in parts by weight: 20 parts tea tree essential oil, 15 parts lemon eucalyptus essential oil, 10 parts lavender essential oil, 5 parts thyme essential oil, 5 parts D-limonene, 3 parts mite-repellent and antibacterial agent, 3 parts phenylethanol, 2 parts alkyl polysaccharide glycoside, and 0.5 parts vitamin E. The mite-removing and antibacterial agent is prepared by the following steps: S1: Add zinc sulfonate phthalocyanine and UHP to ethanol and sonicate at 180W for 15min to form a suspension; wherein, the mass ratio of zinc sulfonate phthalocyanine, UHP and tetraethyl orthosilicate is 8:1:3; the ratio of ethanol to zinc sulfonate phthalocyanine is 1mL:3mg. S2: Mix tetraethyl orthosilicate and isopropanol, add suspension, ammonia and deionized water, stir and react for 20 h at room temperature and in the dark, and take the precipitate after the reaction is completed; the ratio of isopropanol to tetraethyl orthosilicate is 5 mL: 0.5 g; the volume ratio of isopropanol, ammonia and deionized water is 5:1:0.1. S3: Wash the precipitate and acidify it by adding acid to the final wash to make the pH of the system 6-7. Dry the precipitate to obtain the mite-removing and antibacterial agent.

[0025] The zinc phthalocyanine sulfonate is prepared by the following steps: zinc phthalocyanine is placed in an ice-water bath below 10°C and concentrated sulfuric acid is added dropwise. The sulfonation reaction is carried out at 60±5°C for 2 hours. After the reaction is completed, the precipitate is collected, washed, and dried to obtain zinc phthalocyanine sulfonate. The ratio of zinc phthalocyanine to concentrated sulfuric acid is 1g:5mL.

[0026] Example 4 It is basically the same as Example 1, except that: The detergent fragrance containing mite-repellent and antibacterial essential oils comprises the following components in parts by weight: 22 parts tea tree essential oil, 18 parts lemon eucalyptus essential oil, 12 parts lavender essential oil, 6 parts thyme essential oil, 7 parts D-limonene, 4 parts mite-repellent and antibacterial agent, 4 parts glycerin, 3 parts alkyl polysaccharide glycoside, and 0.6 parts vitamin E.

[0027] Example 5 It is basically the same as Example 1, except that: The detergent fragrance containing mite-repellent and antibacterial essential oils includes the following components in parts by weight: 28 parts tea tree essential oil, 22 parts lemon eucalyptus essential oil, 18 parts lavender essential oil, 9 parts thyme essential oil, 9 parts D-limonene, 7 parts mite-repellent and antibacterial agent, 6 parts phenylethanol, 4 parts sucrose stearate, and 0.8 parts tea polyphenols.

[0028] Comparative Example 1 It is basically the same as Example 1, except that no mite-removing and antibacterial agent is added.

[0029] Comparative Example 2 The process is basically the same as in Example 1, except that the mite-removing and antibacterial agent is prepared by the following steps: mixing zinc phthalocyanine and UHP in the same amount as in Example 1.

[0030] Comparative Example 3 This is basically the same as Example 1, except that the mite-killing and antibacterial agent is replaced with the same amount of traditional bactericide - benzalkonium chloride (BAC, trade name 1227 / Jiermie).

[0031] The detergent fragrances of Examples 1-5 and Comparative Examples 1-3 were tested, and the test data are shown in Table 1.

[0032] Mite removal rate: determined according to the inhibition method in standard GB / T 24253-2009; Antibacterial rate: The inhibition rate of the sample against Staphylococcus aureus (ATCC 6538) and Escherichia coli (ATCC 8739) was determined by the absorption method in standard ISO 20743:2021. Storage stability: The samples were stored at 40℃ ± 2℃ and 75% RH for 90 days, and the mite removal rate was measured.

[0033] Table 1 As shown in Table 1, the detergent fragrances containing mite-removing and antibacterial essential oils provided in Examples 1-5 of this invention exhibit excellent performance in terms of mite removal rate, broad-spectrum antibacterial activity, and storage stability. Comparing with the comparative examples, Comparative Example 1, lacking any mite-removing and antibacterial agent, showed a mite inhibition rate of only 41.2% and an antibacterial rate of <60%. Comparative Example 2, using a physical mixture of ZnPc and UHP, showed a mite removal rate that plummeted to 36.8% after 90 days of storage, indicating that without SiO2 protection, UHP was prematurely decomposed by ZnPc during storage. Comparative Example 3 used the traditional bactericide benzalkonium chloride (BAC), which has a narrow antibacterial spectrum and is slightly less effective against Gram-negative bacteria (Escherichia coli). Furthermore, BAC is a cationic surfactant, easily binding and inactivating with anionic components (such as LAS) in laundry detergent, and it is highly irritating to the skin, posing certain safety risks.

[0034] The above descriptions are merely some embodiments of the present invention. Those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A detergent fragrance containing mite-removing and antibacterial essential oil, characterized in that, The product contains the following components in parts by weight: 20-30 parts tea tree oil, 15-25 parts lemon eucalyptus oil, 10-20 parts lavender oil, 5-10 parts thyme oil, 5-10 parts D-limonene, 3-8 parts anti-mite and antibacterial agent, 3-7 parts stabilizer, 2-5 parts emulsifier, and 0.5-1 part antioxidant. The mite-removing and antibacterial agent is prepared by the following steps: S1: Add zinc phthalocyanine sulfonate and UHP to solvent one and sonicate to form a suspension; S2: Mix tetraethyl orthosilicate and solvent II, add the suspension, ammonia and deionized water to react, and take the precipitate after the reaction is complete; S3: The precipitate is washed, acidified, and dried to obtain the mite-removing and antibacterial agent.

2. The detergent fragrance of the anti-mite and antibacterial essential oil according to claim 1, characterized in that, The sulfonated zinc phthalocyanine is prepared by the following steps: concentrated sulfuric acid is added dropwise to zinc phthalocyanine, and after sulfonation reaction, the precipitate is collected, washed, and dried to obtain the sulfonated zinc phthalocyanine.

3. The detergent fragrance of the anti-mite and antibacterial essential oil according to claim 2, characterized in that, The ratio of zinc phthalocyanine to concentrated sulfuric acid is 1g:5mL; the dropping temperature is <10℃; the sulfonation reaction temperature is 60±5℃, and the sulfonation reaction time is 2-3h.

4. The detergent fragrance of the anti-mite and antibacterial essential oil according to claim 1, characterized in that, The mass ratio of the zinc sulfonate phthalocyanine, the UHP, and the tetraethyl orthosilicate is 8:1-1.5:3-5.

5. The detergent fragrance of the anti-mite and antibacterial essential oil according to claim 1, characterized in that, Solvent 1 and Solvent 2 are both selected from at least one of ethanol and isopropanol.

6. The detergent fragrance of the anti-mite and antibacterial essential oil according to claim 5, characterized in that, The ratio of solvent one to zinc phthalocyanine sulfonate is 1 mL: 3-5 mg; the ratio of solvent two to tetraethyl orthosilicate is 5 mL: 0.5-1.5 g.

7. The detergent fragrance of the anti-mite and antibacterial essential oil according to claim 1, characterized in that, The volume ratio of solvent 2, ammonia, and deionized water is 5:1 to 3:0.

1.

8. The detergent fragrance of the anti-mite and antibacterial essential oil according to claim 1, characterized in that, In step S1, the ultrasonic treatment is performed by ultrasonication at a power of 180-220W for 15-20 minutes; in step S2, the reaction is performed by stirring at room temperature and in the dark for 20-24 hours; in step S3, the acidification is performed by adding acid to the final wash to make the pH of the system 6-7.

9. The detergent fragrance of the anti-mite and antibacterial essential oil according to claim 1, characterized in that, The stabilizer is selected from at least one of glycerol and phenylethanol; the emulsifier is selected from at least one of alkyl polysaccharide glycoside and sucrose stearate; and the antioxidant is selected from at least one of vitamin E and tea polyphenols.

10. The application of a detergent fragrance containing an anti-mite and antibacterial essential oil as described in any one of claims 1-9 in the field of detergents.

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