CN111264570B - Plant mosquito-repellent incense and preparation method thereof - Google Patents
Plant mosquito-repellent incense and preparation method thereof Download PDFInfo
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- CN111264570B CN111264570B CN202010162508.7A CN202010162508A CN111264570B CN 111264570 B CN111264570 B CN 111264570B CN 202010162508 A CN202010162508 A CN 202010162508A CN 111264570 B CN111264570 B CN 111264570B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/18—Vapour or smoke emitting compositions with delayed or sustained release
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/20—Combustible or heat-generating compositions
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/22—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing ingredients stabilising the active ingredients
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N27/00—Biocides, pest repellants or attractants, or plant growth regulators containing hydrocarbons
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
- A01N31/06—Oxygen or sulfur directly attached to a cycloaliphatic ring system
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N35/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical
- A01N35/04—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical containing aldehyde or keto groups, or thio analogues thereof, directly attached to an aromatic ring system, e.g. acetophenone; Derivatives thereof, e.g. acetals
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/40—Liliopsida [monocotyledons]
- A01N65/44—Poaceae or Gramineae [Grass family], e.g. bamboo, lemon grass or citronella grass
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The invention provides a plant mosquito-repellent incense and a preparation method thereof, wherein the plant mosquito-repellent incense comprises a green body component and an active component; the blank comprises the following raw materials in percentage by mass: 10-60% of carbon powder, 3-8% of viscose powder and 50% of white bakelite powder; the active ingredients comprise the following raw materials in percentage by mass: 15-35% of menthanol, 10-20% of peppermint oil, 8-18% of compound repellent, 30-48% of flavoring repellent and 2-20% of volatile regulator. Through compounding of various effective mosquito repellent components such as menthandiol, peppermint oil, a composite repellent, a flavoring repellent and the like, a good mosquito repellent effect is realized. Meanwhile, the menthanol is used as a main mosquito repellent component and has the effect of inhibiting mosquito blood absorption, and the menthanol not only has the effect of repelling mosquitoes, but also is used as a solubilizer of the menthanol to ensure the content of the menthanol in the active component. The incense blank is prepared by combining carbon powder with white bakelite and viscose powder, does not generate a large amount of smoke in the combustion process, has low gas irritation and is convenient to use indoors.
Description
Technical Field
The invention relates to the technical field of mosquito repelling, in particular to a plant mosquito repelling incense and a preparation method thereof.
Background
As a mosquito repellent, the mosquito repellent generally adopts pyrethroid medicaments as effective components, and has the effects of knockdown, killing, activity control and repelling mosquitoes, but the great use of the pyrethroid medicaments can cause pollution to the environment, water and soil and harm to various aspects such as immunity, cardiovascular system and the like, so that the health of human beings is seriously harmed, the safety and environmental protection are more emphasized along with the improvement of the living standard of people, and the mosquito repellent capable of repelling the mosquitoes by adopting natural plant substances is more required.
In addition, plants such as citronella, eucalyptus leaves and the like are used for repelling mosquitoes, but the odor of mosquito repelling components in the citronella and the eucalyptus leaves is relatively pungent, and the use in rooms is limited.
Disclosure of Invention
The invention mainly aims to provide the plant mosquito-repellent incense which is environment-friendly and convenient to use.
The invention also aims to provide a preparation method of the plant mosquito-repellent incense.
In order to achieve the purpose, the invention provides the following technical scheme:
as a first aspect, the present invention relates to a plant mosquito repellent incense comprising a green body component and an active component;
the blank comprises the following raw materials in percentage by mass:
10 to 60 percent of carbon powder,
3 to 8 percent of viscose powder,
3% -50% of white bakelite powder;
the active ingredients comprise the following raw materials in percentage by mass:
further setting: the composite repellent comprises the following raw materials in percentage by mass:
3 to 10 percent of citronella oil,
5 to 8 percent of lemon eucalyptus oil.
Further setting: the flavoring repellent comprises the following raw materials in percentage by mass:
further setting: the volatilization regulator comprises polyethylene glycol, and the molecular weight range of the polyethylene glycol is 100-200.
Further setting: the blank component also comprises one or more of wormwood powder and citronella powder.
Further setting: the blank component also comprises 5 to 20 percent of cypress powder.
As a second aspect, the invention also relates to a preparation method of the plant mosquito-repellent incense, which comprises the following steps:
(1) uniformly mixing the components of the blank to form mixed dry powder, adding water, and uniformly stirring to form a mixed solution;
(2) introducing the mixed solution into a white blank punching machine, punching and forming, then baking in a baking room, and baking until drying to form a fragrant blank;
(3) putting the formed and dried incense blank into a pesticide spraying production line for spraying pesticide, wherein the pesticide spraying liquid is a mixed liquid medicine of the active ingredients;
(4) and (7) sealing the film and packaging.
Further setting: the mixing ratio of the dry powder and the water in the step (1) is 2:1 to 1: 2.
Further setting: the temperature of the drying room in the step (2) is 30-50 ℃, and the baking time is 4-12 h.
Further setting: 0.5g-0.8g of pesticide is sprayed on each double-disc incense blank in the step (3).
Compared with the prior art, the scheme of the invention has the following advantages:
1. in the plant mosquito-repellent incense, the active ingredients are added with the menthandiol, so that the mosquito-repellent incense has a mosquito repellent effect, the menthandiol also has a good effect of inhibiting blood absorption of mosquitoes, in addition, no cosolvent such as water or ethanol, isopropanol, glycol, glycerol, propylene glycol and the like is added into the active ingredients, so that the purity of the active ingredients can be ensured, meanwhile, the menthin oil in the active ingredients can effectively improve the dissolubility of the menthandiol, so that the effective mosquito repellent ingredients in the plant mosquito-repellent incense are improved, the mosquito repellent effect is excellent, the menthin oil has special cool fragrance, and the mosquito repellent effect is realized by heating and volatilizing.
2. According to the plant mosquito-repellent incense disclosed by the invention, a large amount of the blending repellent is added, the blending repellent has a certain repellent effect on mosquitoes, the use of citronella oil and eucalyptus citriodora leaf oil can be reduced, meanwhile, the flavor of the blending repellent is relatively fresh, the irritation of the plant mosquito-repellent incense is reduced, and the use comfort of people is improved.
3. In the plant mosquito-repellent incense, the polyethylene glycol is added into the active ingredients, and the polyethylene glycol has larger molecular weight, is more viscous and has slower expansion speed, so that the polyethylene glycol is only attached to the upper layer of the green body, and can play a role in inhibiting volatilization of other small molecular substances in the active ingredients sprayed on the green body, thereby improving the stability of the plant mosquito-repellent incense and prolonging the storage time.
4. In the plant mosquito-repellent incense, the carbon powder is combined with the white bakelite and the viscose powder to prepare the incense blank, so that the plant mosquito-repellent incense does not generate a large amount of smoke in the combustion process and is convenient to use.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Detailed Description
The invention is further described below with reference to exemplary embodiments. In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted.
The plant mosquito-repellent incense is provided aiming at the problem that the existing mosquito-repellent incense adopting the pyrethroid medicines is more harmful, and natural plant substances are used as effective components to achieve a good mosquito-repellent effect. The plant mosquito-repellent incense comprises a green body component and an active component, wherein the green body component comprises the following raw materials in percentage by mass: 10-60% of carbon powder, 3-8% of viscose powder and 3-50% of white bakelite powder; the active ingredients comprise the following raw materials in percentage by mass: 15-35% of menthanol, 10-20% of peppermint oil, 8-18% of compound repellent, 30-48% of flavoring repellent and 2-20% of volatile regulator.
The carbon powder in the green body component is porous carbon powder, can be prepared by adopting plant peels such as coconut shells, chestnut shells, corncobs and the like or other plant fibers through an annealing process, and has the advantages of long combustion time, high heat value, no smoke, no explosion, environmental protection and the like, so that the plant mosquito-repellent incense adopts the carbon powder as the combustion component of the green body, the smoke generated in the combustion process of the plant mosquito-repellent incense is small, and the plant mosquito-repellent incense is convenient to use.
The appearance of the viscose powder is crushed or powdery, the viscose powder can be melted when being heated and can be condensed after being cooled, and the viscose powder is added into the blank component to be beneficial to the forming of the incense blank.
The white bakelite powder has the functions of dispelling wind and killing insects, so that the carbon powder and the white bakelite powder are formed into incense blanks through the viscose powder, the obtained incense blanks are small in combustion smoke, and have certain functions of dispelling wind and killing insects.
In addition, one or more than one composition of wormwood powder and citronella powder can be added into the blank component, wherein the content range of the wormwood powder is 3% -25%, and the content range of the citronella powder is 5% -20%. The wormwood powder has special smell in smoke released after combustion, and can fumigate mosquitoes so as to effectively drive the mosquitoes. The citronella powder also has certain smell in smoke released in the combustion process, and the smell can be used for dispelling mosquitoes, inhibiting the mosquitoes from sucking blood and leading the mosquitoes to lose the aggressivity. Therefore, the wormwood powder and the citronella powder are added into the components of the green body, so that smoke released in the combustion process has special smell, and the mosquito repelling effect of the plant mosquito repelling incense is improved.
Furthermore, cypress powder can be added into the blank body, the cypress can generate certain fragrance in the combustion process, the irritation of the odor generated in the combustion process of the wormwood powder and the citronella powder can be reduced, meanwhile, the cypress has extremely strong corrosion resistance, and the cypress can be used as a preservative of the plant mosquito-repellent incense so as to prolong the storage time of the plant mosquito-repellent incense.
The menthanediol in the active component is also called p-menthane-3, 8-diol, p-menthyl-3, 8-diol, 2-hydroxy-alpha, alpha, 4-trimethyl cyclohexane methanol, CAS number: 42822-86-6, which is extracted from Eucalyptus citriodora leaves, is an effective natural mosquito repellent component approved by the environmental protection agency EPA of the supervision department of the United states of mosquito repelling class, and the menthandiol and DEET have the same mosquito repelling effect when used in the same amount, and simultaneously, the mosquito repellent composition is different from the barrier formed by directly smearing the synthetic product of the menthandiol or the Eucalyptus citriodora leaf oil on the skin in the prior art.
In addition, because the menthene glycol is in a water-insoluble oily fixed state at normal temperature, the menthene oil in the application can be used as a solubilizer to realize the solubilization of the menthene glycol, so that no cosolvent such as water, ethanol, isopropanol, ethylene glycol, glycerol, propylene glycol and the like is needed to be added into the active ingredients. The peppermint oil is colorless or light yellow clear liquid, has special cool fragrance, is pungent in flavor and cool after taste, and is an aromatic drug, a seasoning drug and a wind-expelling drug. The inclusion of the dementholized peppermint oil may help to increase the solubility of the menthanediol, and when the active ingredient is sprayed onto the aroma base formed from the body ingredients, the crystallization of the active ingredient on the aroma base may be reduced, reducing waste. Meanwhile, as no water or cosolvent such as ethanol, isopropanol, glycol, glycerol, propylene glycol and the like is added into the active ingredients, the content of the active ingredients in the active ingredients can be ensured, and the content of the active ingredients used for repelling mosquitoes in the active ingredients is high, so that the content of the active ingredients in the plant mosquito-repelling incense can be ensured. In addition, the dementholized peppermint oil also has a certain repellent effect on mosquitoes when heated and volatilized, so that the dementholized peppermint oil is not only used as a solubilizer of menthandiol, but also has a certain repellent effect, and the mosquito repellent effect of the plant mosquito repellent incense is further improved.
In addition, the active ingredients are also added with a compound repellent, so that the mosquito repellent effect of the active ingredients can be further improved, the compound repellent is one or a composition of more than one of citronella oil or eucalyptus citriodora leaf oil, wherein the content range of the citronella oil is 3% -10%, and the content range of the eucalyptus citriodora leaf oil is 5% -8%. Citronella oil is also called vanilla oil or male daylily oil, which is obtained by steam distillation of the whole grass of citronella, is light yellow liquid, has strong sweet pepper fragrance, and can be used as pesticide, mosquito repellent and the like. The eucalyptus citriodora leaf oil can be extracted from the eucalyptus citriodora leaves, the main components of the eucalyptus citriodora leaf oil are citronellal, citronellol, geraniol, pinene and the like, the eucalyptus citriodora leaf oil belongs to a thermosensitive material, a large amount of gas with pungent smell can be formed when the eucalyptus citriodora leaf oil is heated, and the eucalyptus citriodora leaf oil has good effects of sterilization and mosquito repelling.
Although the citronella oil and the eucalyptus citriodora leaf oil have good mosquito repellent effect, the odors of the citronella oil and the eucalyptus citriodora leaf oil are relatively pungent, discomfort of people can be increased in the using process, the proportion of the citronella oil and the eucalyptus citriodora leaf oil is reduced, the menthandiol and the dementholized mint oil are used as main mosquito repellent components, the menthandiol is relatively small in odor, the dementholized mint oil has special cool fragrance, in addition, a large amount of blending repellent is added to adjust the volatile odor of the mosquito repellent incense of the plant in the application, and the blending repellent also has a certain mosquito repellent effect, so that the usage of the citronella oil and the eucalyptus citriodora leaf oil can be reduced, and the irritation of the fragrance of the plant mosquito repellent incense can be further reduced.
Preferably, the blending repellent is one or more of patchouli oil, alpha-limonene, citronellal and menthol, wherein the patchouli oil is natural oil with costus root, loam and herbal fragrance, and can be used as a fragrance fixative due to the superior fragrance fixation performance, so that the active ingredients of the plant mosquito repellent incense can be uniformly volatilized, and rapid evaporation is prevented. And the content of patchouli oil is 20-40%, the content of alpha-limonene is 5-8%, the content of citronellal is 5-8% and the content of menthol is 2-4%.
By adding a large amount of fragrance-blending repellent into the active ingredients, the proportion of the citronella oil and the lemon eucalyptus oil is reduced, and the comfort of people when the plant mosquito-repellent incense is used is further improved.
To sum up, the active ingredient of the plant mosquito repellent incense of this application mainly adopts menthandiol as main mosquito repellent ingredient, adds peppermint oil, compound repellent and accent fragrant repellent simultaneously to peppermint oil also possesses certain mosquito repellent effect on the basis as menthandiol solubilizer, and the accent fragrant repellent also possesses the repellent effect to the mosquito outside the effect of realizing adjusting fragrance, then active ingredient realizes the combination complex of multiple effective mosquito repellent ingredient, thereby makes the plant mosquito repellent incense of this application have excellent mosquito repellent effect.
In addition, most of the effective mosquito repellent ingredients in the active ingredients are volatile substances which can be naturally volatilized in the air, so that the plant incense is easy to lose in the storage and use processes, and the natural volatilization of the effective mosquito repellent ingredients in the active ingredients can be effectively inhibited by adding the volatilization regulator into the active ingredients.
Preferably, the volatilization regulator adopts the polyethylene glycol, after the active ingredients are sprayed on the incense blank, effective mosquito repellent ingredients in the active ingredients belong to small molecular ingredients and can be easily expanded into the incense blank, and the polyethylene glycol has a large molecular weight, is relatively viscous, has a low diffusion speed and a short diffusion distance, so that the polyethylene glycol is only attached to the surface of the incense blank, and has a certain volatilization inhibition effect on the small molecular ingredients expanded into the incense blank.
More preferably, the molecular weight of the polyethylene glycol is in the range of 100-200, the molecular weight of the polyethylene glycol is moderate, the phenomenon that the volatilization inhibition effect is not achieved due to the excessively low molecular weight can be avoided, and the phenomenon that the overall volatilization of the active material is affected due to the excessively high molecular weight can also be avoided.
The plant mosquito-repellent incense specifically comprises the following steps:
(1) uniformly mixing the components of the blank to form mixed dry powder, adding water, and uniformly stirring to form a mixed solution, wherein the mixing ratio of the dry powder to the water is 2: 1-1: 2.
(2) Introducing the mixed solution into a white blank punching machine, punching and forming, then baking for 4-12 h in a baking room at the temperature of 30-50 ℃, and baking until drying to form a fragrant blank;
(3) putting the formed and dried incense blanks into a pesticide spraying production line for spraying pesticide, wherein the pesticide spraying liquid is a mixed liquid medicine prepared from the active ingredients, and 0.5g-0.8g of pesticide is sprayed on each double incense blank;
(4) and sealing and packaging the film to obtain the finished product of the plant mosquito-repellent incense.
The weight of each double dish of the incense blank of the plant mosquito-repellent incense prepared by the steps is 30g-40g, and the weight of the corresponding active ingredient is 0.4g-0.9g, so that the content of the active ingredient reaches 1.0% -3.0%, and the plant mosquito-repellent incense is ensured to have good mosquito-repellent effect when being burnt.
Since the plant mosquito-repellent incense mainly achieves mosquito repelling through active ingredients thereof, the application is further described below with reference to specific embodiments, but the application is not limited to the following embodiments.
Example one
The active component of the plant mosquito-repellent incense comprises the following raw materials in percentage by mass:
example two
The active component of the plant mosquito-repellent incense comprises the following raw materials in percentage by mass:
EXAMPLE III
The active component of the plant mosquito-repellent incense comprises the following raw materials in percentage by mass:
example four
The active component of the plant mosquito-repellent incense comprises the following raw materials in percentage by mass:
comparative example 1
The active component of the plant mosquito-repellent incense comprises the following raw materials in percentage by mass:
comparative example No. two
The active component of the plant mosquito-repellent incense comprises the following raw materials in percentage by mass:
comparative example No. three
The active component of the plant mosquito-repellent incense comprises the following raw materials in percentage by mass:
comparative example No. four
The active component of the plant mosquito-repellent incense comprises the following raw materials in percentage by mass:
the test results of the above examples are shown in tables 1-2.
1) Repellency
It adopts trigeminy drum experimental apparatus to test: the triple cylinder is formed by connecting three sections of plastic cylinders with the same diameter and length, the connecting part is a movable drawing plate which can be drawn, and the drawing plate is in a closed state before the experiment is started. The middle section of the cylinder is a pest placing cylinder, a sample to be tested is placed in the cylinder at one end of the middle cylinder, the cylinder is called a drug end, and the cylinder at the other end of the middle cylinder is called a blank end. Firstly, connecting the device, putting 30 outdoor culex mosquitoes into the middle cylinder, correspondingly igniting the mosquito-repellent incense of each embodiment and each comparative example after the middle cylinder is recovered to be normal, placing the ignited mosquito-repellent incense for a period of 20s, then removing the mosquito-repellent incense, immediately pulling the two side pulling plates for timing, observing the number of the mosquitoes staying in the three cylinders every 2min, and recording data.
The repelling rate is 1-the number of mosquitoes with drugs/(the total number of mosquitoes/3)
The test results were as follows:
TABLE 1
The results in table 1 show that, in the first to fourth examples, the effect on repelling mosquitoes is the best, in the second example, in the third example, and in the last example, in the second example, it can be seen that the effect on repelling mosquitoes is directly related to the content of menthanediol, and the higher the content of menthanediol in the active ingredient is, the better the effect on repelling mosquitoes is.
In addition, by comparing example one with comparative example one, comparative example one replaces patchouli oil and peppermint oil with ethanol, where ethanol is used as a solubilizer for the menthene glycol. As seen from the results of the repellent rates of the two in table 1, the biological effect of the first comparative example is significantly reduced, so that the patchouli oil also has a good repellent effect on mosquitoes, and meanwhile, the patchouli oil has costus root, loam and inula root, and can be used for adjusting the odor of the plant mosquito repellent incense in the application and improving the comfort level of people. Specifically, by combining the first example and the second comparative example, the patchouli oil and the dementholized peppermint oil are replaced by ethanol and citronellal, which can be seen from the results in table 1, but the odor of citronellal is relatively pungent, and the components of the second comparative example also contain components with relatively pungent odor, such as alpha-limonene and eucalyptus citriodora, so that the incense has relatively high odor irritation during use and is limited to be used in a living room.
Meanwhile, in consideration of the storage condition of the plant mosquito-repellent incense at normal temperature, the third comparative example which removes polyethylene glycol from the active ingredients is compared with the first example. First, the samples of example one and comparative example three were subjected to a combustion test after processing, and the biological effects of the two samples were comparable. Then the two are not packaged and stored for 24 hours at 30 ℃, and the results in table 1 show that the biological performance of the first example after heat storage is slightly reduced, while the biological effect of the third comparative example after heat storage is obviously different from that of the first comparative example, so that the polyethylene glycol has the function of inhibiting volatilization of the mosquito-repellent volatile substances sprayed on the incense blank at normal temperature, the stability of the plant mosquito-repellent incense can be effectively improved, and the storage time can be prolonged.
Furthermore, in the fourth comparative example, the polyethylene glycol 200 of the first example is replaced by polyethylene glycol 1000, and as is apparent from the results in table 1, the biological effect of the fourth comparative example is significantly reduced, and it is known that volatilization of the active substance is inhibited if the molecular weight of the polyethylene glycol is too large, so that the molecular weight of the polyethylene glycol is limited in the present application, and thus, the present application has a certain inhibition effect on volatilization of the active substance at normal temperature, and does not affect the whole volatilization of the active substance at high temperature.
2) Inhibiting blood sucking
A square box luring method is adopted, and specifically comprises the following steps: the air draft in the square box is opened, the air speed is controlled to be consistent, a big white rat is placed in a mouse cage and placed in the middle of the square box, the ignited plant mosquito repelling incense is placed in a test square box after 20min, 30 wild mosquitoes are placed after 10min, and the blood sucking condition and the knockdown quantity of the mosquitoes are obtained next day.
And the calculation method for inhibiting the blood suction rate comprises the following steps:
inhibition of blood draw rate 1-sample/blank blood draw, the specific results are as follows:
TABLE 2
| Number of blood draws/ | Hit the reciprocal/only | Total number/only | Inhibiting blood absorption rate | |
| Example one | 2 | 7 | 30 | 85％ |
| EXAMPLE I (Heat storage) | 6 | 3 | 30 | 54％ |
| Example two | 8 | 4 | 30 | 38％ |
| EXAMPLE III | 5 | 5 | 30 | 61％ |
| Example four | 4 | 7 | 30 | 69％ |
| Comparative example 1 | 11 | 0 | 30 | 15％ |
| Comparative example No. two | 5 | 6 | 30 | 62％ |
| Comparative example No. three | 2 | 8 | 30 | 85％ |
| COMPARATIVE EXAMPLE III (Heat storage) | 6 | 0 | 30 | 54％ |
| Comparative example No. four | 4 | 4 | 30 | 69％ |
| Blank space | 13 | 0 | 30 | - |
As can be seen from the data in table 2, the blood absorption inhibiting rate of the active ingredient in the plant mosquito repellent incense of example one is the best, next to example four, example three, and finally to example two, the ratio is related to the added content of menthanediol, and the higher the content of menthanediol is, the better the blood absorption inhibiting effect is.
Meanwhile, in the first comparative example, patchouli oil and dementholized peppermint oil in the first example were replaced with ethanol, and although ethanol was used as a solvent for menthandiol, the blood absorption inhibition rate was the lowest in the experiment, so that it was known that patchouli oil and dementholized peppermint oil also have the effect of inhibiting blood absorption by mosquitoes.
In summary, the plant mosquito-repellent incense disclosed by the application does not contain pyrethroid medicines, and the mosquito-repellent incense achieves good mosquito-repellent and mosquito blood-sucking inhibition effects through the combination of mosquito-repellent components of natural plants, so that the hazard of using the pyrethroid mosquito-repellent incense can be reduced. In addition, carbon powder is used as a main component in the blank body component of the plant mosquito-repellent incense, and meanwhile, the mosquito-repellent effect of the plant mosquito-repellent incense is improved by combining the white bakelite powder, the wormwood powder and the citronella powder. In addition, through compounding a plurality of effective mosquito repellent components such as menthandiol, peppermint oil, a composite repellent and a blending repellent, a good mosquito repellent effect can be obtained, the use of citronella oil and lemon eucalyptus oil in active ingredients is reduced, and a large amount of patchouli oil is added to adjust the odor, so that the odor volatilized by the burning of the plant mosquito repellent incense is fresh and pleasant, the irritation of the plant mosquito repellent incense is further reduced, the use comfort of people is improved, and the plant mosquito repellent incense is suitable for being used in rooms of people.
The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A plant mosquito-repellent incense is characterized by comprising a green body component and an active component;
the blank comprises the following raw materials in percentage by mass:
10 to 60 percent of carbon powder,
3 to 8 percent of viscose powder,
3% -50% of white bakelite powder;
the active ingredients comprise the following raw materials in percentage by mass:
wherein, the volatilization regulator comprises polyethylene glycol, and the molecular weight range of the polyethylene glycol is 100-200.
2. The plant mosquito-repellent incense as claimed in claim 1, wherein the compound repellent comprises the following raw materials by mass percent:
3 to 10 percent of citronella oil,
5 to 8 percent of lemon eucalyptus oil.
3. The plant mosquito-repellent incense according to claim 1, wherein the flavoring repellent comprises the following raw materials in percentage by mass:
4. the plant mosquito-repellent incense according to claim 1, wherein the green body component further comprises one or more of wormwood powder and citronella powder.
5. The plant mosquito-repellent incense according to claim 1, wherein the body component further comprises 5% -20% cedar wood flour.
6. A method of preparing a plant mosquito repellent incense as claimed in any of claims 1 to 5 comprising the steps of:
(1) uniformly mixing the components of the blank to form mixed dry powder, adding water, and uniformly stirring to form a mixed solution;
(2) introducing the mixed solution into a white blank punching machine, punching and forming, then baking in a baking room, and baking until drying to form a fragrant blank;
(3) putting the formed and dried incense blank into a pesticide spraying production line for spraying pesticide, wherein the pesticide spraying liquid is a mixed liquid medicine of the active ingredients;
(4) and (7) sealing the film and packaging.
7. The preparation method of the plant mosquito-repellent incense according to claim 6, wherein the mixing ratio of the dry powder and the water in the step (1) is 2:1 to 1: 2.
8. The preparation method of the plant mosquito-repellent incense according to claim 6, wherein the temperature of the drying room in the step (2) is 30-50 ℃, and the baking time is 4-12 h.
9. The preparation method of the plant mosquito-repellent incense according to claim 6, wherein 0.5g to 0.8g of the plant mosquito-repellent incense is sprayed on each double-disk incense blank in the step (3).
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| JP2002193704A (en) * | 2000-12-26 | 2002-07-10 | Sumitomo Chem Co Ltd | Insect pest repellent |
| JP4526264B2 (en) * | 2003-12-15 | 2010-08-18 | 大日本除蟲菊株式会社 | Flying pest repellent composition |
| WO2009084580A1 (en) * | 2007-12-28 | 2009-07-09 | Dainihon Jochugiku Co., Ltd. | Repellent for grape pest, and method for repelling grape pest |
| CN101926746A (en) * | 2010-08-25 | 2010-12-29 | 邱日辉 | Polymer controlled release long-acting mosquito repellent product and preparation method thereof |
| CN102860303B (en) * | 2012-10-15 | 2013-12-25 | 广西工学院 | Method for utilizing citriodora oil to extract waste liquid to prepare mosquito repellent |
| CN104862152B (en) * | 2015-05-19 | 2018-07-06 | 上海制皂有限公司 | Mosquito-expelling scented soap |
| WO2017003395A1 (en) * | 2015-07-02 | 2017-01-05 | Entovest İlaç Ki̇mya Ve Teknoloji̇ Araştirma Merkezi̇ San. Ti̇c. Ltd. Şti̇. | Nanoencapsulated mosquito-, fly- and tick-repellent formulation |
| CN105211115B (en) * | 2015-11-05 | 2019-04-26 | 厦门琥珀日化科技股份有限公司 | A kind of natural liquid and the preparation method and application thereof |
| JP2017122080A (en) * | 2016-09-12 | 2017-07-13 | 高砂香料工業株式会社 | Incense stick containing p-menthane-3,8-diol, and diffusion method of p-menthane-3,8-diol into space by smoking the incense stick |
| CN108771640B (en) * | 2018-09-07 | 2020-06-09 | 广州立白企业集团有限公司 | Ethanol-free anti-mosquito composition capable of improving efficacy of menthyl-3, 8-diol |
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