Mosquito repellent sachet and method of making same

Abstract

The application relates to the technical field of traditional Chinese medicine compositions, in particular to a mosquito-repelling sachet and a preparation method thereof. The mosquito-repelling sachet comprises the following raw materials in parts by weight: 60-80 parts of artemisia argyi, 40-60 parts of pachouli, 20-40 parts of rhizoma acori graminei, 20-40 parts of pterocephalus totatus, 3-5 parts of peppermint oil, 1-3 parts of clove oil, 3-5 parts of rosemary oil and 1-3 parts of lavender oil. The preparation method of the mosquito-repelling sachet is as follows: S1: taking the prepared artemisia argyi, pachouli, rhizoma acori graminei and pterocephalus totatus according to the parts by weight, and low-temperature vacuum drying until the moisture content is lower than 15%; S2: putting the dried medicinal materials into a mixing machine, firstly stirring and mixing in the clockwise direction, pausing for a period of time, and then stirring and mixing in the counterclockwise direction; S3: crushing the medicinal material mixture into coarse powder and sieving; S4: spraying the sieved coarse powder with the peppermint oil, clove oil, rosemary oil and lavender oil and uniformly mixing; S5: taking the quantitative mixed coarse powder, putting the coarse powder into the sachet and sealing, and placing the sachet in a closed cool place to obtain the mosquito-repelling sachet.

Description

Technical Field

[0001] This invention relates to the field of traditional Chinese medicine compositions, and in particular to a mosquito repellent sachet and its preparation method. Background Technology

[0002] A sachet, also known as a fragrant bag, flower bag, or pouch, is a breathable, woven bag filled with fragrant substances. Sachets are popular for their decorative and aesthetic appeal due to their exquisite sewing craftsmanship and embroidered patterns. They are also convenient to carry, easy to use, and suitable for various occasions. Furthermore, the spices and traditional Chinese medicines inside can provide benefits such as strengthening the body, refreshing the mind, and repelling insects. Sachets have a long history and rich cultural heritage. Over thousands of years of use, their structure, appearance, and contents have undergone profound evolution. Modern people often wear sachets on their person or place them in their rooms or cars, where they not only serve a decorative purpose but also provide a refreshing and insect-repelling effect.

[0003] Summer's hot and humid climate breeds mosquitoes, causing considerable annoyance to people during outdoor activities and sleep. Mosquitoes are tiny flying insects with piercing-sucking mouthparts and are considered one of the four pests. Mosquitoes are dioecious, with different diets for each sex. Female mosquitoes, driven by reproductive needs, are blood-sucking. When biting, the female mosquito inserts its six-branched, needle-like mouthparts into the animal's skin, releasing saliva containing an anticoagulant to prevent blood clotting, allowing it to successfully suck blood. Mosquito bites are not only painful but also cause swelling and itching. This is because the animal's immune system reacts to the mosquito's saliva, releasing histamine, leading to swelling and itching. Beyond the unpleasant pain and itching, mosquitoes are vectors for many diseases. Studies have shown that mosquitoes can transmit dengue fever, Japanese encephalitis, filariasis, and malaria, significantly impacting human health and well-being.

[0004] The main methods for outdoor mosquito repellent on the market include mosquito repellent bracelets and mosquito repellent sprays. Mosquito repellent bracelets are convenient to use, have pleasant scents, and are reasonably priced, making them popular. However, their main ingredients may include DEET (diethyltoluamide), chemical fragrances, etc. DEET, also known as diethyltoluamide, is a synthetic insecticide with potential toxicity to the human respiratory tract and skin. Mosquito repellent sprays mainly contain permethrin, cypermethrin, and organic solvents. These sprays can be absorbed into the body through the skin, especially the respiratory mucosa, posing potential health risks, particularly respiratory irritation, and in severe cases, causing allergic coughs or asthma.

[0005] Therefore, it is essential to develop a mosquito repellent product that is all-natural, has few side effects, and is easy to use. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a mosquito-repellent sachet and its preparation method, based on existing mosquito-repellent products.

[0007] Specifically:

[0008] On one hand, the present invention provides a mosquito repellent sachet, comprising the following raw materials in parts by weight: 50-90 parts of mugwort, 30-70 parts of patchouli, 10-50 parts of calamus, 10-50 parts of agastache, 2-6 parts of peppermint oil, 1-5 parts of clove oil, 2-6 parts of rosemary oil and 1-5 parts of lavender oil.

[0009] Artemisia argyi levl. et vant. cv., a plant in the Asteraceae family. This product is mostly shriveled and broken, with short petioles. When flattened, the complete leaf is ovate-elliptic, pinnately deeply lobed, with elliptic-lanceolate lobes and irregularly coarse serrations along the edges; the upper surface is grayish-green or dark yellowish-green, with sparse soft hairs and glandular dots; the lower surface is densely covered with grayish-white downy hairs. It is soft in texture, has a fragrant aroma, and a bitter taste.

[0010] [Properties and Channels Entered] Pungent, bitter, warm. Enters the Liver, Spleen, and Kidney channels.

[0011]

Functions and Indications

[0012] Patchouli: The dried aerial parts of *Pogostemon cablin* (Blanco) Benth., a plant in the Lamiaceae family. It is produced in irregular segments; the stems are slightly square-columnar, grayish-brown, grayish-yellow, or reddish-brown in color, and covered with soft hairs. The cut surface contains a white pith. The leaves are broken or shriveled into clumps; intact leaves, when flattened, are ovate or elliptical, covered with grayish-white tomentum on both sides; the base is wedge-shaped or obtuse, and the margins have irregularly sized blunt teeth; the petioles are slender and covered with soft hairs. It has a distinctive aroma and a slightly bitter taste.

[0013] [Properties and Channels Entered] Pungent, slightly warm. Enters the spleen, stomach, and lung channels.

[0014]

Functions and Indications

[0015] Sweet flag (Acorus tatarinowii): The dried rhizome of Acorus tatarinowii Schott., a plant in the Araceae family. It appears as flat, round or long, thick slices. The outer skin is brownish-brown or grayish-brown, sometimes showing nodes and root scars. The cut surface is fibrous, off-white or slightly reddish, with distinct annular markings and oil dots. It has an aromatic odor and a bitter, slightly pungent taste.

[0016] [Properties and Channels Entered] Pungent, bitter, warm. Enters the Heart and Stomach channels.

[0017]

Functions and Indications

[0018] Eupatorium fortunei Turcz., a plant in the Asteraceae family, is a dried aerial part. It appears as irregular segments; the stem is cylindrical, yellowish-brown or yellowish-green, sometimes tinged with purple, with distinct nodes and longitudinal ridges. The pith is white or hollow on the cut surface. Leaves are opposite, mostly wrinkled and broken, and greenish-brown. It has an aromatic odor and a slightly bitter taste.

[0019] [Properties and Channels Entered] Pungent, neutral. Enters the spleen, stomach, and lung channels.

[0020]

Functions and Indications

[0021] Peppermint: The dried aerial parts of *Mentha haplocalyx* Briq., a plant in the Lamiaceae family. It is produced in irregular segments. The stem is square-shaped, purplish-brown or pale green on the surface, with longitudinal ridges and hairs at the corners. The cut surface is white and hollow. The leaves are mostly broken, dark green on the upper surface and grayish-green on the lower surface, sparsely covered with hairs. The verticillasters are axillary; the calyx is bell-shaped with five lobes at the apex; the corolla is pale purple. When rubbed, it has a distinctive cool aroma and a pungent, cool taste.

[0022] [Properties and Channels Entered] Pungent, cool. Enters the Lung and Liver channels.

[0023]

Functions and Indications

[0024] Clove: The dried flower buds of *Eugenia caryophyllata* Thunb., a plant in the Myrtaceae family. The product is roughly stick-shaped, 1–2 cm long. The corolla is spherical, 0.3–0.5 cm in diameter, with 4 petals that are imbricate and brownish-yellow. Inside the petals are the stamens and style; when crushed, numerous fine yellow anthers are visible. The calyx tube is cylindrical, slightly flattened, sometimes slightly curved, 0.7–1.4 cm long and 0.3–0.6 cm in diameter, reddish-brown or brownish-brown, with 4 triangular sepals at the top, separated in a cross shape. It is firm and oily. It has a strong aromatic odor and a pungent, numbing taste.

[0025] [Properties and Channels Entered] Pungent, warm. Enters the spleen, stomach, lung, and kidney channels.

[0026]

Functions and Indications

[0027] Rosemary: The whole herb of *Rosemaryia sinensis*, a plant in the Lamiaceae family. This is a shrub; leaves often grow in clusters on branches, with very short petioles or sessile. The leaf blades are linear, obtuse at the apex, gradually narrowing at the base, entire, curling backwards, leathery, slightly glossy on the upper surface, nearly glabrous, and densely covered with white stellate hairs on the lower surface. Antioxidants with excellent antioxidant properties and rosemary essential oil can be extracted from the flowers and leaves of rosemary. Rosemary antioxidants are widely used in pharmaceuticals, fried foods, oily foods, and for preserving the freshness and quality of various oils; while rosemary essential oil is used in fragrances, air fresheners, ant repellents, and in daily chemical industries such as bactericides and insecticides. Rosemary essential oil extracted with supercritical carbon dioxide meets the national standard B-level standard for repellent evaluation against Aedes albopictus mosquitoes. The essential oils contain mosquito-repellent active substances such as limonene, camphor, eucalyptol, and beta-pinene. Moreover, the mosquito-repellent active ingredients account for a high proportion in the volatile oil, indicating that the plant essential oil has certain development value in mosquito repellency.

[0028] Lavender: The dried aerial parts of *Lavandula angustifolia*, a plant belonging to the Lamiaceae family. It is a semi-shrub or low shrub, branched, covered with stellate hairs, denser in young parts. Leaves are linear or lanceolate-linear; those on flowering branches are larger and sparse, grayish-white or olive-green when dry; leaves on regenerating branches are smaller, clustered, no more than 1.7 cm long and about 0.2 cm wide, densely covered with grayish-white stellate hairs, grayish-white when dry, all with obtuse apex, gradually narrowed at the base into a very short petiole, entire, with everted margins; the midrib is raised on the underside; lateral veins and reticulate veins are inconspicuous. Lavender oil is a complex mixture of many different types of aromatic compounds, the main components of which include linalool, linalyl acetate, eucalyptol, lavenderyl acetate, lavenderol, and camphor. Lavender not only repels mosquitoes, but its compound linalool has also been shown to have a calming effect. Linalool works by directly stimulating olfactory neurons and acting on receptors, thus exerting a calming and anti-anxiety effect, leading to a pleasant mood. Adding lavender harmonizes the aromas of other herbs, resulting in a sachet with a delicate, non-irritating fragrance that is widely appreciated.

[0029] Preferably, a mosquito repellent sachet comprises the following raw materials in parts by weight: 60-80 parts of mugwort, 40-60 parts of patchouli, 20-40 parts of calamus, 20-40 parts of agastache, 3-5 parts of peppermint oil, 1-3 parts of clove oil, 3-5 parts of rosemary oil, and 1-3 parts of lavender oil.

[0030] More preferably, a mosquito repellent sachet comprises the following ingredients in parts by weight: 65-75 parts of Artemisia argyi, 45-55 parts of Patchouli, 25-35 parts of Acorus calamus, 25-35 parts of Eupatorium fortunei, 3-4 parts of Peppermint oil, 1-2 parts of Clove oil, 3-4 parts of Rosemary oil, and 1-2 parts of Lavender oil.

[0031] On the other hand, the present invention also provides a method for preparing a mosquito-repellent sachet, the preparation steps of which are as follows:

[0032] S1: Take the cleaned mugwort leaves, patchouli, calamus and agastache according to the weight proportions, and dry them at low temperature;

[0033] S2: Put the dried medicinal material into the mixer, stir clockwise first, pause for a while, then stir counterclockwise and take it out;

[0034] S3: Crush the mixture of medicinal materials into coarse powder and sieve it;

[0035] S4: Spray peppermint oil, clove oil, rosemary oil and lavender oil into the sifted coarse powder and mix well;

[0036] S5: Take a certain amount of mixed coarse powder, put it into a sachet and seal it. Place it in a cool, dark place to make a mosquito repellent sachet.

[0037] Preferably, the low-temperature drying operation of S1 involves drying the medicinal material under vacuum conditions at 10-30°C until the moisture content of the medicinal material is less than 15%.

[0038] Preferably, the clockwise stirring speed of S2 is 20-30 r / min, and the stirring time is 15-25 min.

[0039] Preferably, the pause time of S2 is 1-3 minutes.

[0040] Preferably, the counterclockwise stirring speed of S2 is 20-30 r / min, and the stirring time is 15-25 min.

[0041] Preferably, S3 involves passing the coarse powder through a 5-10 mesh sieve.

[0042] Preferably, S4 involves performing oil spraying and mixing operations at a temperature of 25-40°C.

[0043] Compared with the prior art, the beneficial effects of the present invention are:

[0044] 1. The present invention provides a mosquito-repellent sachet, the formula of which uses artemisia, patchouli, calamus, agastache, peppermint oil, clove oil, rosemary oil and lavender oil, scientifically combining multiple components with mosquito-repellent and antibacterial effects. The four kinds of Chinese herbal medicine powder and four kinds of medicinal plant essential oils are mixed together to achieve a synergistic effect, resulting in a very good mosquito-repellent effect. Moreover, the fragrance is mild and pleasant, and the raw materials are all natural materials, which are environmentally friendly and non-irritating.

[0045] 2. A method for preparing a mosquito-repellent sachet according to the present invention involves adding the effective components of peppermint, clove, rosemary, and lavender to the medicinal powder as essential oils. This not only makes the sachet smell more fragrant and pleasant, and the aroma release is longer, but also allows some of the effective components in the medicinal powder to be extracted and released together, thereby enabling the medicinal effects of the herbs in the sachet to be better volatilized, increasing the drug loading of the effective components, and achieving a better mosquito-repellent effect than the simple medicinal powder.

[0046] 3. In the preparation process of the mosquito-repellent sachet, the present invention uses low-temperature vacuum drying of the medicinal materials. The low-temperature vacuum drying operation avoids the decomposition and dissipation of volatile components in the formula due to high temperature, and further effectively ensures the mosquito-repellent effect of the sachet prepared by the present invention.

[0047] 4. In the preparation process of the mosquito repellent sachet, the present invention adopts a forward and reverse alternating stirring method, so that the pulverized medicine and the sprayed essential oil can be mixed more evenly and better synergistically to achieve the mosquito repellent effect. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1 This is a simplified flowchart illustrating the preparation method of the mosquito-repellent sachet of the present invention. Detailed Implementation

[0050] The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0051] Example 1

[0052] This embodiment provides a method for preparing a mosquito-repellent sachet, and the specific preparation steps are as follows:

[0053] Weigh the following ingredients in the specified proportions: 70 parts Artemisia argyi, 50 parts Patchouli, 30 parts Acorus calamus, 30 parts Eupatorium fortunei, 3 parts Peppermint oil, 1 part Clove oil, 3 parts Rosemary oil, and 1 part Lavender oil.

[0054] S1: Take cleaned Artemisia argyi, Patchouli, Acorus calamus and Eupatorium fortunei, and vacuum dry them at 15°C until the moisture content is less than 15%;

[0055] S2: Put the dried Artemisia argyi, Patchouli, Acorus tatarinowii and Eupatorium fortunei into the mixer and start it. Stir clockwise at 25 r / min for 15 min, pause for 1 min, and then stir counterclockwise at 25 r / min for 15 min. Then take out the well-stirred herbal mixture.

[0056] S3: Crush the mixture of medicinal materials into coarse powder and pass it through a 5-mesh sieve;

[0057] S4: Spray peppermint oil, clove oil, rosemary oil and lavender oil into the sifted coarse powder and mix well;

[0058] S5: Take 20g of mixed coarse powder, put it into a sachet and seal it. Place it in a cool, dark place to make a mosquito repellent sachet.

[0059] Example 2

[0060] This embodiment provides a method for preparing a mosquito-repellent sachet, and the specific preparation steps are as follows:

[0061] Weigh the following ingredients in the specified proportions: 60 parts Artemisia argyi, 40 parts Patchouli, 20 parts Acorus calamus, 20 parts Eupatorium fortunei, 3 parts Peppermint oil, 1 part Clove oil, 3 parts Rosemary oil, and 1 part Lavender oil.

[0062] S1: Take cleaned Artemisia argyi, Patchouli, Acorus calamus and Eupatorium fortunei, and vacuum dry them at 10℃ until the moisture content is less than 15%;

[0063] S2: Put the dried Artemisia argyi, Patchouli, Acorus tatarinowii and Eupatorium fortunei into the mixer and start it. Stir clockwise at 25 r / min for 20 min, pause for 1 min, and then stir counterclockwise at 25 r / min for 20 min. Then take out the well-stirred herbal mixture.

[0064] S3: Crush the mixture of medicinal materials into coarse powder and pass it through a 5-mesh sieve;

[0065] S4: Spray peppermint oil, clove oil, rosemary oil and lavender oil into the sifted coarse powder and mix well;

[0066] S5: Take 20g of mixed coarse powder, put it into a sachet and seal it. Place it in a cool, dark place to make a mosquito repellent sachet.

[0067] Example 3

[0068] This embodiment provides a method for preparing a mosquito-repellent sachet, and the specific preparation steps are as follows:

[0069] Weigh the following ingredients in the specified proportions: 70 parts Artemisia argyi, 50 parts Patchouli, 30 parts Acorus calamus, 30 parts Eupatorium fortunei, 4 parts Peppermint oil, 2 parts Clove oil, 4 parts Rosemary oil, and 2 parts Lavender oil.

[0070] S1: Take cleaned Artemisia argyi, Patchouli, Acorus calamus and Eupatorium fortunei, and vacuum dry them at 10℃ until the moisture content is less than 15%;

[0071] S2: Put the dried Artemisia argyi, Patchouli, Acorus tatarinowii and Eupatorium fortunei into the mixer and start it. Stir clockwise at 25 r / min for 20 min, pause for 1 min, and then stir counterclockwise at 25 r / min for 20 min. Then take out the well-stirred herbal mixture.

[0072] S3: Crush the mixture of medicinal materials into coarse powder and pass it through a 5-mesh sieve;

[0073] S4: Spray peppermint oil, clove oil, rosemary oil and lavender oil into the sifted coarse powder and mix well;

[0074] S5: Take 20g of mixed coarse powder, put it into a sachet and seal it. Place it in a cool, dark place to make a mosquito repellent sachet.

[0075] Comparative Example 1

[0076] This comparative example provides a method for preparing a mosquito-repellent sachet. The main difference from Example 1 is that this example uses only coarse powder of medicinal materials and does not use essential oils. The specific preparation steps are as follows:

[0077] Weigh out the following ingredients in the specified proportions: 70 parts Artemisia argyi, 50 parts Patchouli, 30 parts Acorus calamus, 30 parts Eupatorium fortunei, 3 parts Mentha haplocalyx, 1 part Clove, 3 parts Rosemary, and 1 part Lavender.

[0078] S1: Take cleaned mugwort, patchouli, calamus, agastache, peppermint, clove, rosemary and lavender, and vacuum dry them at 15°C until the moisture content is less than 15%.

[0079] S2: Put the dried medicinal material into the mixer and start it. Stir clockwise at 25r / min for 15min, pause for 1min, then stir counterclockwise at 25r / min for 15min. Take out the well-stirred medicinal material mixture.

[0080] S3: Crush the mixture of medicinal materials into coarse powder and pass it through a 5-mesh sieve;

[0081] S4: Take 20g of mixed coarse powder, put it into a sachet and seal it. Place it in a cool, dark place to make a mosquito repellent sachet.

[0082] Comparative Example 2

[0083] This comparative example provides a method for preparing a mosquito-repellent sachet. The main difference from Example 1 is that rosemary oil is not added in this example. The specific preparation steps are as follows:

[0084] Weigh out the following ingredients in the specified proportions: 70 parts Artemisia argyi, 50 parts Patchouli, 30 parts Acorus calamus, 30 parts Eupatorium fortunei, 3 parts Peppermint oil, 1 part Clove oil, and 1 part Lavender oil.

[0085] S1: Take cleaned Artemisia argyi, Patchouli, Acorus calamus and Eupatorium fortunei, and vacuum dry them at 15°C until the moisture content is less than 15%;

[0086] S2: Put the dried Artemisia argyi, Patchouli, Acorus tatarinowii and Eupatorium fortunei into the mixer and start it. Stir clockwise at 25 r / min for 15 min, pause for 1 min, and then stir counterclockwise at 25 r / min for 15 min. Then take out the well-stirred herbal mixture.

[0087] S3: Crush the mixture of medicinal materials into coarse powder and pass it through a 5-mesh sieve;

[0088] S4: Spray peppermint oil, clove oil and lavender oil into the sifted coarse powder and mix well;

[0089] S5: Take 20g of mixed coarse powder, put it into a sachet and seal it. Place it in a cool, dark place to make a mosquito repellent sachet.

[0090] Comparative Example 3

[0091] This comparative example provides a method for preparing a mosquito-repellent sachet. The main difference from Example 1 is that lavender oil is not added in this example. The specific preparation steps are as follows:

[0092] Weigh the following ingredients in the specified proportions: 70 parts Artemisia argyi, 50 parts Patchouli, 30 parts Acorus calamus, 30 parts Eupatorium fortunei, 3 parts Peppermint oil, 1 part Clove oil, and 3 parts Rosemary oil.

[0093] S1: Take cleaned Artemisia argyi, Patchouli, Acorus calamus and Eupatorium fortunei, and vacuum dry them at 15°C until the moisture content is less than 15%;

[0094] S2: Put the dried Artemisia argyi, Patchouli, Acorus tatarinowii and Eupatorium fortunei into the mixer and start it. Stir clockwise at 25 r / min for 15 min, pause for 1 min, and then stir counterclockwise at 25 r / min for 15 min. Then take out the well-stirred herbal mixture.

[0095] S3: Crush the mixture of medicinal materials into coarse powder and pass it through a 5-mesh sieve;

[0096] S4: Spray peppermint oil, clove oil and rosemary oil into the sifted coarse powder and mix well;

[0097] S5: Take 20g of mixed coarse powder, put it into a sachet and seal it. Place it in a cool, dark place to make a mosquito repellent sachet.

[0098] Test 1: Animal Mosquito Repellent Effect Test

[0099] Test mosquito: Aedes albopictus, purchased from the Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention.

[0100] Experimental mice: 5 white mice, purchased from the Shanghai Institute of Laboratory Animal Science, Chinese Academy of Sciences, all male, weighing 25g±2g, ordinary grade.

[0101] Experimental Method: First, the long hair on the abdomen of 5 mice was clipped. Depilatory agent was applied to the abdomen, and after 3 minutes, it was wiped off with a tissue and rinsed with tap water. The 5 mice were fixed to a plastic board, abdomen facing upwards, with the rest of their skin tightly wrapped with gauze to cover the skin. The mice were placed in a 40cm×30cm×30cm mosquito cage containing 300 female Aedes albopictus mosquitoes that had not fed for 4-5 days for 2 minutes. Mosquitoes that landed on the cage with more than 20 mosquitoes were considered to have sufficient attack power. The mice were then placed in the four corners (experimental group) and the center (control group) of a clean, mosquito-free, 5m×5m enclosed room. A camera was fixed near the mice to record the number of female Aedes albopictus mosquitoes that landed on the mice's abdomens. Sachets prepared in Examples 1, 2, 3 and Comparative Example 1 were placed next to the mice in the four corners of the room. The number of mosquito bites was recorded after 2 hours, 6 hours, 12 hours and 24 hours.

[0102] Effective protection rate (%) = (Number of mosquito bites in the control group - Number of mosquito bites in the examples) / Number of mosquito bites in the control group. The experimental results are shown in Table 1 below. Compared with the control group, Examples 1, 2, 3 and Comparative Example 1 can effectively protect mice from mosquito bites; and compared with Comparative Example 1, the effective protection rate of the example groups is significantly improved.

[0103] Table 1 Protection rate of mosquito repellent sachets in each group

[0104]

[0105]

[0106] As shown in the table above, the mosquito repellent sachet prepared by this invention has a very good mosquito repellent effect. The scientifically formulated mosquito repellent formula, which converts some of the raw materials into essential oils, makes the mosquito repellent effect even more obvious.

[0107] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the nature and scope of the present invention. Various modifications made to the above embodiments by those skilled in the art after reading this specification are all within the scope of protection of the present invention.

Claims

1. Use of a mosquito repellent sachet in repelling mosquitoes, characterized in that, The mosquito repellent sachet comprises the following raw materials in parts by weight: 50-90 parts of folium artemisiae argyi, 30-70 parts of pachystachys jussieu, 10-50 parts of rhizoma alocasia, 10-50 parts of pterocephalus totatus, 2-6 parts of oil of mentha, 1-5 parts of oil of syzygium aromaticum, 2-6 parts of oil of rosemary and 1-5 parts of oil of lavandula; The preparation steps of the mosquito repellent sachet are as follows: S1: taking the folium artemisiae argyi, pachystachys jussieu, rhizoma alocasia and pterocephalus totatus which have been cleaned and prepared according to parts by weight, and drying at low temperature; S2: putting the dried medicinal materials into a mixing machine, first stirring and mixing in clockwise direction, pausing for a period of time, then stirring and mixing in counterclockwise direction, and taking out; S3: crushing the medicinal material mixture into coarse powder and sieving; S4: spraying the oil of mentha, oil of syzygium aromaticum, oil of rosemary and oil of lavandula into the sieved coarse powder and mixing uniformly; S5: taking the quantitative mixed coarse powder and putting it into the sachet and sealing, and placing it in a closed cool place to obtain the mosquito repellent sachet; The mosquito is Aedes albopictus.

2. Use according to claim 1, characterized in that, The low temperature drying operation of S1 is drying the medicinal materials under vacuum condition at 10-30℃ until the moisture content is less than 15%.

3. Use according to claim 1, characterized in that, The clockwise stirring speed of S2 is 20-30 r / min, and the stirring time is 15-25 min; The pause time of S2 is 1-3 min; The counterclockwise stirring speed of S2 is 20-30 r / min, and the stirring time is 15-25 min.

4. Use according to claim 1, characterized in that, S3 is sieving the coarse powder through a 5-10 mesh sieve.

5. The use according to claim 1, characterized in that, S4 is spraying oil and mixing operation at a temperature of 25-40℃.

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