A bactericidal air freshener and a method of making the same

Abstract

The application discloses a bactericidal air freshener and a preparation method thereof, and belongs to the field of daily chemicals. The bactericidal air freshener comprises a propellant and a liquid medicine, and the liquid medicine comprises the following components in percentage by weight: d-trans-chloropropene chrysanthemum ester 0.04%-0.08%, hexachlorophene 0.4%-0.8%, glyoxal 3%-7%, a cosolvent 25%-35%, essential oil 0.2%-0.45%, and the balance of water. The preparation method of the bactericidal air freshener comprises the following steps: mixing hexachlorophene, glyoxal, essential oil and the cosolvent uniformly, then adding d-trans-chloropropene chrysanthemum ester, continuously mixing and stirring uniformly, adding water, continuously mixing and stirring uniformly, and preparing the liquid medicine; adding the liquid medicine into a tank body, then filling the tank body with the propellant, and preparing the bactericidal air freshener. The bactericidal air freshener has the advantages of improving the bactericidal and insecticidal capacity of the air freshener.

Description

Technical Field

[0001] This application relates to the field of daily chemical products, and in particular to a bactericidal air freshener and its preparation method. Background Technology

[0002] As people's requirements for living and working environments increase, the market for air fresheners is booming. Air fresheners typically mask unpleasant odors by releasing fragrance, improving the environmental experience and reducing people's discomfort from odors. Air fresheners come in three forms: solid, liquid, and gaseous. Among them, aerosol and spray air fresheners are the most common, as they can diffuse into corners of the environment for a better freshening effect.

[0003] In addition to providing fragrance, air fresheners can also contain ingredients for sterilization and insect repellency, giving them these effects and expanding their application scenarios and benefits, while also enhancing comfort after use.

[0004] However, since the essential function of air fresheners is to provide fragrance, the amount of antibacterial and insecticidal ingredients added to air fresheners cannot be too much. This greatly reduces the antibacterial and insecticidal effects of air fresheners and affects their overall effectiveness. Summary of the Invention

[0005] In order to improve the bactericidal and insecticidal capabilities of air fresheners, this application provides a bactericidal air freshener and its preparation method.

[0006] Firstly, the bactericidal air freshener provided in this application adopts the following technical solution:

[0007] A bactericidal air freshener includes a propellant and a liquid, wherein the weight ratio of the propellant to the liquid is (0.66–1):1, and the liquid comprises the following components by weight percentage:

[0008] 0.04%–0.08% of dextrorotatory trans-chloropropyne pyrethroids;

[0009] Hexachlorobisphenol 0.4%–0.8%;

[0010] Glyoxal 3%–7%;

[0011] Co-solvent 25%–35%;

[0012] Fragrance oil 0.2%–0.45%;

[0013] The remainder is water.

[0014] By adopting the above technical solution, hexachlorobisphenol has good bactericidal ability, dextrorotatory trans-chloropropyne pyrethrin has good mosquito killing ability, and both hexachlorobisphenol and dextrorotatory trans-chloropropyne pyrethrin have mite-killing effects, thus enabling the air freshener to have bactericidal and mosquito-killing abilities.

[0015] In practical use, it was found that while dextrorotatory trans-cypermethrin has a strong knockdown effect on mosquitoes, its lethal effect is weak, resulting in poor actual mosquito-killing efficacy. This application also adds hexachlorobisphenol and glyoxal to the air freshener. Hexachlorobisphenol provides bactericidal properties, while glyoxal reacts with ammonia, amines, hydrogen sulfide, and thiol groups, thereby consuming odorous substances in the environment and freshening the air. Furthermore, it was found that the combined effect of dextrorotatory trans-cypermethrin, hexachlorobisphenol, and glyoxal enhances the lethality of mosquitoes, thus improving the overall mosquito-killing effect and enhancing the bactericidal and mosquito-killing capabilities of the air freshener.

[0016] Optionally, the co-solvent is alcohol.

[0017] By adopting the above technical solution, alcohol helps the components dissolve in the water-based solvent system, achieving good dispersion. Furthermore, alcohol itself has bactericidal and mite-removing effects, thus further improving the bactericidal effect of air fresheners.

[0018] Optionally, the essential oil is selected from one or more of the following: rose essential oil, black pine essential oil, jasmine essential oil, fennel essential oil, litsea cubeba essential oil, bitter orange leaf essential oil, and European red pine essential oil.

[0019] By adopting the above technical solutions, the above essential oils have a variety of aromas, can provide a fragrant scent, mask environmental odors, achieve the effect of freshening the air, and make people feel happy.

[0020] Optionally, the essential oil is jasmine essential oil and red pine essential oil, and the weight ratio of jasmine essential oil to red pine essential oil is 1:(0.2-0.5).

[0021] By adopting the above technical solution, with the combination of dextrorotatory trans-chloropropyne pyrethrin, hexachlorobisphenol A, and glyoxal, and using jasmine essential oil and European red pine essential oil as fragrance oils, it was found that the air freshener has a stronger knockdown ability against mosquitoes and a higher killing rate against mites, that is, a stronger mite-removing ability, making the air freshener more effective in sterilizing and killing mosquitoes.

[0022] Optionally, the essential oil is jasmine essential oil and European red pine essential oil, and the weight ratio of dextrorotatory trans-chloropropyne pyrethrin, hexachlorobisphenol A, glyoxal, jasmine essential oil and European red pine essential oil is (0.25~0.28):(2.8~3.2):(22~25):1:(0.3~0.36).

[0023] By adopting the above technical solution, the proportions of each component are further controlled, and the synergistic effect of jasmine essential oil and European red pine essential oil is brought into play, making the air freshener more effective at knocking down mosquitoes in a short period of time, that is, more rapid knockdown.

[0024] Optionally, the essential oil is one or more of jasmine essential oil, petitgrain essential oil and fennel essential oil, and the weight ratio of jasmine essential oil, petitgrain essential oil and fennel essential oil is 1:(0.1-0.2):(0.3-0.4).

[0025] By adopting the above technical solution and combining jasmine essential oil, bitter orange leaf essential oil and fennel essential oil, the lethality of mosquitoes is further improved, and the fragrance of the air freshener is more pleasant, resulting in a better overall effect.

[0026] Optionally, the alcohol is edible alcohol with a concentration of 75-95%.

[0027] By adopting the above technical solutions, edible alcohol contains fewer impurities, has less impact on the environment, and even if a small amount is inhaled by the human body, it will not cause significant health effects.

[0028] Optionally, the propellant is propane-butane.

[0029] Secondly, the preparation method of the bactericidal air freshener provided in this application adopts the following technical solution:

[0030] A method for preparing a bactericidal air freshener includes the following steps:

[0031] Hexachlorobisphenol, glyoxal, essential oil and solubilizer are stirred and mixed evenly, then dextrorotatory trans-chloropropyne pyrethrin is added and stirred and mixed evenly again, then water is added and stirred and mixed evenly again to obtain the drug solution.

[0032] The liquid medicine is added to the can, and then propellant is added to the can to produce a bactericidal air freshener.

[0033] By adopting the above technical solution, hexachlorobisphenol, glyoxal and essential oil are first mixed with the cosolvent to play a pre-dispersion role, which also helps the subsequent dispersion of dextrorotatory trans-chloropropyne pyrethroids. Then water is added to make the whole system of bactericidal air freshener more stable.

[0034] In summary, this application has the following beneficial effects:

[0035] 1. This application incorporates hexachlorobisphenol A (HCP) and dextrorotatory trans-chloropropyne pyrethrin into an air freshener. HCP has excellent bactericidal activity, while dextrorotatory trans-chloropropyne pyrethrin has excellent mosquito-killing activity. Both HCP and dextrorotatory trans-chloropropyne pyrethrin have mite-killing effects, thus giving the air freshener bactericidal and mosquito-killing capabilities. In addition to dextrorotatory trans-chloropropyne pyrethrin, this application also uses HCP and glyoxal in combination. HCP provides bactericidal function, while glyoxal reacts with ammonia, amines, hydrogen sulfide, and thiol groups, thereby consuming odorous substances in the environment and freshening the air. Furthermore, it has been found that the lethality against mosquitoes is improved, resulting in an enhanced overall mosquito-killing effect and thus improving the bactericidal and mosquito-killing capabilities of the air freshener.

[0036] 2. This application also uses a specific ratio of essential oils, such as jasmine essential oil and European red pine essential oil, to enhance the air freshener's ability to kill and knock down mosquitoes and mites, thus making the air freshener's bactericidal and mosquito-killing effects better. Detailed Implementation

[0037] The present application will be further described in detail below with reference to embodiments and comparative examples.

[0038] Example

[0039] Example 1

[0040] A bactericidal air freshener includes a liquid and a propellant. The propellant is propane and butane. The liquid includes the following components: 4g of dextrorotatory trans-chloropropyne pyrethrin, 40g of hexachlorobisphenol A, 300g of glyoxal, 2500g of edible alcohol, 20g of essential oil, and 7136g of purified water.

[0041] The essential oil is rose essential oil, and the alcohol concentration is 95%.

[0042] A method for preparing a bactericidal air freshener includes the following steps:

[0043] Weigh out hexachlorobisphenol, glyoxal, essential oil and edible alcohol by weight, add them to a mixing flask, stir at 200 r / min for 5 min until they are mixed evenly, then add dextrorotatory trans-cypermethrin, continue stirring for 5 min until they are mixed evenly, then add water, continue stirring for 3 min until they are mixed evenly, and the drug solution is obtained.

[0044] Add 600g of liquid medicine to the aerosol can, then use an air compressor to fill the aerosol can with 400g of propellant. Attach a spray cap to the aerosol can to produce a bactericidal air freshener.

[0045] Example 2

[0046] The difference between this embodiment and Embodiment 1 is that the components of the drug solution are different and the amounts of drug solution and propellant are different.

[0047] Specifically, the solution includes the following components:

[0048] 8g of dextrorotatory trans-chloropropyne pyrethrin, 800g of hexachlorobisphenol A, 700g of glyoxal, 3500g of edible alcohol, 45g of essential oil, and 5667g of purified water.

[0049] The essential oil is European red pine essential oil, and the concentration of edible alcohol is 75%.

[0050] The dosage of the drug solution is 500g, and the dosage of the propellant is 500g.

[0051] Example 3

[0052] The difference between this embodiment and Embodiment 1 is that the components of the drug solution are different and the amounts of drug solution and propellant are different.

[0053] Specifically, the solution includes the following components:

[0054] 7g of dextrorotatory trans-chloropropyne pyrethrin, 50g of hexachlorobisphenol A, 600g of glyoxal, 3000g of edible alcohol, 30g of essential oil, and 6313g of purified water.

[0055] The essential oil is jasmine essential oil, and the alcohol concentration is 75%.

[0056] The amount of liquid medicine used is 600g, and the amount of propellant used is 400g.

[0057] Example 4

[0058] The difference between this embodiment and Embodiment 3 is that the composition of the essential oil is different.

[0059] Specifically, the essential oil consists of 25g of jasmine essential oil and 5g of European red pine essential oil.

[0060] Example 5

[0061] The difference between this embodiment and Embodiment 3 is that the composition of the essential oil is different.

[0062] Specifically, the essential oil consists of 20g of jasmine essential oil and 10g of European red pine essential oil.

[0063] Example 6

[0064] The difference between this embodiment and Embodiment 3 is that the composition of the essential oil and the components of the medicinal solution are different.

[0065] Specifically, the solution includes the following components:

[0066] 5.5g of dextrorotatory trans-chloropropyne pyrethrin, 70g of hexachlorobisphenol A, 550g of glyoxal, 3000g of edible alcohol, 30g of essential oil, and 6344.5g of purified water.

[0067] The essential oil consists of 22g of jasmine essential oil and 8g of European red pine essential oil.

[0068] Example 7

[0069] The difference between this embodiment and Embodiment 3 is that the composition of the essential oil and the components of the medicinal solution are different.

[0070] Specifically, the solution includes the following components:

[0071] 6.4g of dextrorotatory trans-chloropropyne pyrethrin, 64g of hexachlorobisphenol A, 510g of glyoxal, 3000g of edible alcohol, 30g of essential oil, and 6389.6g of purified water.

[0072] The essential oil consists of 23g of jasmine essential oil and 7g of European red pine essential oil.

[0073] Example 8

[0074] The difference between this embodiment and Embodiment 3 is that the composition of the essential oil is different.

[0075] Specifically, the essential oil consists of 20g of jasmine essential oil, 4g of bitter orange leaf essential oil, and 6g of fennel essential oil.

[0076] Example 9

[0077] The difference between this embodiment and Embodiment 3 is that the composition of the essential oil is different.

[0078] Specifically, the essential oil consists of 20g of jasmine essential oil, 2g of bitter orange leaf essential oil, and 8g of fennel essential oil.

[0079] Comparative Example

[0080] Comparative Example 1

[0081] The difference between this comparative example and Example 1 is that glyoxal is used instead of hexachlorobisphenol in the composition of the drug solution.

[0082] Comparative Example 2

[0083] The difference between this comparative example and Example 1 is that an equal amount of edible alcohol is used instead of glyoxal in the composition of the liquid.

[0084] Performance testing

[0085] The bactericidal air fresheners prepared in Examples 1-9 and Comparative Examples 1-2 of this application were tested.

[0086] Sterilization ability test:

[0087] According to section 2.1.3 "Air Disinfection Effectiveness Identification Test" of the "Disinfection Technical Specifications" (2002 edition), a 10m² test room was selected. 3 In the laboratory, the bactericidal air freshener was tested for its 10-minute kill rate against Staphylococcus aureus. The test results are shown in Table 1.

[0088] Mosquito-killing ability test:

[0089] According to GB / T 13917.2-2009 "Indoor Efficacy Tests and Evaluation of Sanitary Insecticides for Pesticide Registration", the test insect was Culex pipiens pallens. The KT50 (time required to knock down 50% of the mosquitoes), KT90 (time required to knock down 50% of the mosquitoes), and 24-hour mortality rate were tested. The test results are shown in Table 1.

[0090] Mite removal ability test:

[0091] According to NY / T 1151.2-2006 "Indoor Efficacy Test Methods and Evaluation of Pesticide Registration Sanitary Insecticides", the test insect was the house dust mite. A mite-killing test was conducted to test the mite-killing rate. The test results are shown in Table 1.

[0092] Table 1

[0093]

[0094]

[0095] As shown in Table 1, the bactericidal air fresheners of Examples 1-3 achieved a bacterial kill rate of 99.9%, demonstrating outstanding bactericidal effects. They also exhibited good mosquito and mite control effects. Therefore, in addition to providing a fresh scent to the environment, the air fresheners also had excellent bactericidal and insect-killing effects.

[0096] Based on the comparative analysis of Comparative Examples 1-2, the air freshener in Example 3 showed a higher 24-hour mortality rate against mosquitoes, indicating a stronger lethal effect and better mosquito control. This demonstrates that the addition of hexachlorobisphenol A and glyoxal to the base of dextrorotatory trans-chloropropyne pyrethroids can enhance the lethality of the air freshener against mosquitoes.

[0097] The study found that the combination of dextrorotatory trans-cypermethrin, hexachlorobisphenol A, and glyoxal can enhance the lethality of mosquitoes, but it does not enhance the knockdown effect on mosquitoes, and the mite-killing effect is reduced. To improve the knockdown effect on mosquitoes and the mite-killing effect of air fresheners, the dosage of dextrorotatory trans-cypermethrin needs to be increased. However, excessive dosage can easily have adverse effects on the environment and human health.

[0098] Comparative analysis with Example 3 shows that the air fresheners in Examples 4-5 have a shorter KT90 time against mosquitoes, indicating that by combining jasmine essential oil and European red pine essential oil with dextrorotatory trans-chloropropyne pyrethroids, the air fresheners have a stronger knockdown effect on mosquitoes and a further improved mite-killing rate, indicating that the mite-killing ability of the air fresheners has also been enhanced.

[0099] Comparative analysis with Example 3 shows that the air fresheners of Examples 6-7 further shortened the KT90 time against mosquitoes, while the KT50 time shortened the most significantly. This indicates that the combination of dextrorotatory trans-chloropropyne pyrethroids, hexachlorobisphenol A, glyoxal, jasmine essential oil, and European red pine essential oil in the specified ratios of this application can achieve a more rapid mosquito-killing ability.

[0100] Comparative analysis with Example 3 shows that the air fresheners of Examples 8-9 achieved a 100% mortality rate against mosquitoes within 24 hours and further improved the mite eradication rate, indicating that the air fresheners are more effective at killing mosquitoes when combined with jasmine essential oil, bitter orange leaf essential oil and fennel essential oil.

[0101] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this specific embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A bactericidal air freshener, characterized in that: It includes propellant and liquid propellant, wherein the weight ratio of propellant to liquid propellant is (0.66~1):1, and the liquid propellant comprises the following components by weight percentage: Dextrorotatory trans-chloropropyne pyrethroid 0.04%~0.08%; Hexachlorobisphenol 0.4%~0.8%; Glyoxal 3%~7%; Cosolvent 25%~35%; Fragrance oil 0.2%~0.45%; The remainder is water; The essential oils are jasmine essential oil and red pine essential oil, and the weight ratio of jasmine essential oil to red pine essential oil is 1:(0.2~0.5). The cosolvent is alcohol.

2. The bactericidal air freshener according to claim 1, characterized in that: The weight ratio of the dextrorotatory trans-chloropropyne pyrethrin, hexachlorobisphenol A, glyoxal, jasmine essential oil and European red pine essential oil is (0.25~0.28):(2.8~3.2):(22~25):1:(0.3~0.36).

3. The bactericidal air freshener according to claim 1, characterized in that: The alcohol mentioned is edible alcohol with a concentration of 75-95%.

4. The bactericidal air freshener according to claim 1, characterized in that: The propellant is propane-butane.

5. A method for preparing a bactericidal air freshener, characterized in that: The preparation of a bactericidal air freshener according to any one of claims 1 to 4 includes the following steps: Hexachlorobisphenol, glyoxal, essential oil and solubilizer are stirred and mixed evenly, then dextrorotatory trans-chloropropyne pyrethrin is added and stirred and mixed evenly again, then water is added and stirred and mixed evenly again to obtain the drug solution. The liquid medicine is added to the can, and then propellant is added to the can to produce a bactericidal air freshener.

Images