CN110742098A - Mosquito-repellent tablet and preparation method thereof - Google Patents
Mosquito-repellent tablet and preparation method thereof Download PDFInfo
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- CN110742098A CN110742098A CN201911060899.5A CN201911060899A CN110742098A CN 110742098 A CN110742098 A CN 110742098A CN 201911060899 A CN201911060899 A CN 201911060899A CN 110742098 A CN110742098 A CN 110742098A
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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
-
- 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
-
- 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
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/22—Lamiaceae or Labiatae [Mint family], e.g. thyme, rosemary, skullcap, selfheal, lavender, perilla, pennyroyal, peppermint or spearmint
-
- 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
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/24—Lauraceae [Laurel family], e.g. laurel, avocado, sassafras, cinnamon or camphor
-
- 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
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/28—Myrtaceae [Myrtle family], e.g. teatree or clove
-
- 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
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/36—Rutaceae [Rue family], e.g. lime, orange, lemon, corktree or pricklyash
-
- 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
-
- 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 mosquito repellent tablet and a preparation method thereof, and relates to the field of mosquito repellent products. The mosquito-repellent tablet provided by the invention is prepared from the following raw materials in parts by weight: 500-950 parts of matrix, 50-450 parts of plant essential oil, 100-150 parts of slow release agent, 10-50 parts of preservative, 20-100 parts of foaming agent, 5-50 parts of foaming promoter, 0.5-1.5 parts of bridging agent, 50-300 parts of filler and 5-50 parts of lubricant. The mosquito-repellent tablet provided by the invention can control the volatilization amount of the essential oil, improve the volatilization uniformity of the essential oil in the front and back periods, prolong the mosquito-repellent lasting period and improve the mosquito-repellent effect.
Description
Technical Field
The invention relates to the field of mosquito repellent products, in particular to a mosquito repellent tablet and a preparation method thereof.
Background
The mosquito repellent tablet is a common mosquito repellent product, and the existing plant essential oil mosquito repellent tablets are mainly divided into a surface type and a mixed type. The surface type mosquito repellent tablet is obtained by spraying or infiltrating plant essential oil on the surface of a substrate, and has the defects that the content of mosquito repellent essential oil is low, the mosquito repellent essential oil is mainly concentrated on the surface of the mosquito repellent tablet, the substrate basically does not contain mosquito repellent essential oil components, the essential oil is greatly volatilized in the early stage of use, the content of the essential oil is rapidly reduced, the content of subsequent essential oil is low, and the mosquito repellent effect is poor. The mixed type mosquito repellent tablet is prepared by fully mixing the mosquito repellent essential oil and the matrix raw material, and then performing cross-linking and polymerization reaction, compared with the surface type mosquito repellent tablet, the mixed type mosquito repellent tablet has the advantages that the volatilization uniformity of the essential oil is improved in the using process, and the lasting time is prolonged, but the problems of large early-stage volatilization amount, small later-stage volatilization amount and unsatisfactory later-stage mosquito repellent effect can still be caused because the plant essential oil contains more components with high vapor pressure.
Disclosure of Invention
Based on this, it is necessary to provide a mosquito repellent tablet aiming at the problems of more volatilization loss of the prior mosquito repellent tablet essential oil in the early stage and less essential oil content in the later stage, so as to improve the volatilization uniformity of the essential oil and the later-stage mosquito repellent effect.
The mosquito-repellent tablet is prepared from the following raw materials in parts by weight:
according to the mosquito repellent tablet, the slow release agent, the bridging agent and the foaming agent are added on the basis of the mosquito repellent essential oil and the base material, the slow release agent and high vapor pressure components in the essential oil are mutually dissolved to generate intermolecular acting force, and meanwhile, according to Raoult's law, the vapor pressure of a solution thermodynamic system formed by the slow release agent and the high vapor pressure components in the essential oil is reduced, so that the volatilization loss of the essential oil is reduced, the content of the essential oil in the mosquito repellent tablet is still higher in the later period of use, the lasting period is prolonged, and the mosquito repellent effect.
In one embodiment, the substrate is selected from: TPE (thermoplastic elastomer), TPR (thermoplastic rubber), EVA (ethylene-vinyl acetate copolymer), PVC (polyvinyl chloride) and silica gel. Wherein, TPE and TPR are thermoplastic elastomers, and the content of Vinyl Acetate (VA) in EVA is 40-70%.
In one embodiment, the plant essential oil is selected from: one or more of herba Schizonepetae oil, oleum Cinnamomi, oleum Caryophylli, wintergreen oil, oleum Eucalypti, oleum Menthae Dementholatum, cedar oil, oleum Lavandula Angustifolia, oleum Camphora, citronella oil, lemon eucalyptus oil, lemon oil, and wild chrysanthemum flower oil. Preferably, the plant essential oil is eucalyptus oil, lavender oil, lemon eucalyptus oil and wild chrysanthemum oil, or eucalyptus oil, clove oil, lemon eucalyptus oil and wild chrysanthemum oil.
In one embodiment, the sustained release agent is selected from: one or more of isopropyl myristate, isopropyl palmitate, diisopropyl adipate, acetyl tributyl citrate and acetyl tributyl citrate. Preferably, the sustained release agent is isopropyl myristate and isopropyl palmitate, or isopropyl myristate, isopropyl palmitate and diisopropyl adipate, or isopropyl palmitate, diisopropyl adipate and tri-n-butyl acetylcitrate.
In one embodiment, the bridging agent is selected from: one or more of di-tert-butylperoxydiisopropylbenzene, dicumyl peroxide, triallyl isocyanurate and trimethylolpropane trimethacrylate. The bridging agent forms a bridge bond between polymer molecular chains to form a three-dimensional structure.
In one embodiment, the foaming agent is an azodicarbonamide foaming agent, and the foaming promoter is zinc oxide powder and/or zinc stearate powder; the preservative is selected from: one or more than two of 2, 6-di-tert-butyl-4-methylphenol, sodium benzoate and potassium sorbate; the filler is perlite; the lubricant is stearic acid.
In one embodiment, the mosquito-repellent tablet further comprises 0.5-1.5 parts of ultraviolet absorbent, and the ultraviolet absorbent is 2- [ 2-hydroxy-3, 5-bis (1, 1-dimethylpropylphenyl) ] -2H-benzotriazole. After the ultraviolet light absorbent is added, the mosquito repellent tablet has stronger stability under illumination and less loss of effective components.
The invention also provides a preparation method of the mosquito repellent tablet, which comprises the following steps:
and (3) drying: uniformly mixing the raw materials, and drying to obtain a dry mixture;
mixing and injection molding: mixing and injection molding the dried mixture to obtain a mosquito repellent sheet base material;
hot pressing: and (3) carrying out die-filling hot pressing on the mosquito repellent sheet base material, and cooling to obtain the mosquito repellent sheet.
In one embodiment, the drying step specifically comprises: uniformly mixing the raw materials, and drying at 40-75 ℃ for 1-3h to obtain a dried mixture;
the mixing and injection molding steps are specifically as follows: mixing and injection molding the dried mixture at the injection molding temperature of 100-120 ℃ to obtain a mosquito repellent sheet base material;
the hot pressing step specifically comprises the following steps: cutting the mosquito repellent sheet base material, placing the cut mosquito repellent sheet base material into a flat vulcanizing machine, loading the cut mosquito repellent sheet base material into a mold, carrying out hot pressing at the temperature of 160-180 ℃, the pressure of 1-20Mpa and the time of 1-20min, automatically releasing the pressure, and cooling the mold to obtain the mosquito repellent sheet.
Compared with the prior art, the invention has the following beneficial effects:
the mosquito repellent tablet provided by the invention can reduce the volatilization loss of the essential oil at the early stage, the content of the essential oil in the mosquito repellent tablet is still higher at the later stage of use, the volatilization amount of the essential oil at the early stage of use and the collected essential oil is more uniform, the duration period is favorably prolonged, and the mosquito repellent effect in the use process is ensured. The preparation method is simple and easy to operate, and the obtained mosquito repellent tablet has a lasting effect.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the preferred embodiments. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example 1
The mosquito repellent tablet comprises the following raw materials in parts by weight:
600 parts of ethylene-vinyl acetate copolymer, 50 parts of eucalyptus oil, 50 parts of lavender oil, 50 parts of eucalyptus citriodora oil, 50 parts of wild chrysanthemum oil, 40 parts of isopropyl myristate, 60 parts of isopropyl palmitate, 20 parts of 2, 6-di-tert-butyl-4-methylphenol, 1 part of 2- [ 2-hydroxy-3, 5-bis (1, 1-dimethylpropylphenyl) ] -2H-benzotriazole, 30 parts of azodicarbonamide, 10 parts of zinc stearate, 1 part of triallyl isocyanurate (TAIC), 200 parts of perlite and 30 parts of stearic acid.
The preparation method of the mosquito repellent tablet comprises the following steps:
uniformly mixing the raw materials, and drying in an oven at 70 ℃ for 150 minutes to obtain a dried mixture; mixing and injection molding the dried mixture at the temperature of 120 ℃ to obtain a mosquito repellent sheet base material; cutting the mosquito repellent sheet base material, placing into a flat vulcanizing machine, die-filling and hot-pressing at 180 deg.C and 15Mpa for 10min, automatically releasing pressure, and cooling the die.
Example 2
The mosquito repellent tablet comprises the following raw materials in parts by weight:
500 parts of silica gel, 50 parts of eucalyptus oil, 50 parts of clove oil, 50 parts of lemon oil, 50 parts of wild chrysanthemum oil, 40 parts of isopropyl myristate, 60 parts of isopropyl palmitate, 20 parts of diisopropyl adipate, 20 parts of 2, 6-di-tert-butyl-4-methylphenol, 1 part of 2- [ 2-hydroxy-3, 5-bis (1, 1-dimethylpropyl phenyl) ] -2H-benzotriazole, 30 parts of azodicarbonamide, 10 parts of zinc stearate, 1 part of trimethylolpropane trimethacrylate (PL400), 180 parts of perlite and 25 parts of stearic acid.
The preparation method of the mosquito repellent tablet comprises the following steps:
uniformly mixing the raw materials, and drying in an oven at 45 ℃ for 170 minutes to obtain a dried mixture; mixing and injection molding the dried mixture at the temperature of 100 ℃ to obtain a mosquito-repellent tablet substrate; cutting the mosquito repellent sheet base material, placing into a flat vulcanizing machine, die-filling and hot-pressing at 170 deg.C and 20Mpa for 18min, automatically releasing pressure, and cooling the die.
Example 3
A mosquito-repellent tablet is different from the raw material of example 1 in that isopropyl myristate is not contained, and the sustained-release agent comprises 60 parts of isopropyl palmitate, 25 parts of diisopropyl adipate and 15 parts of acetyl tributyl citrate.
The preparation method of the mosquito repellent tablet comprises the following steps:
uniformly mixing the raw materials, and drying in a 75 ℃ oven for 100 minutes to obtain a dried mixture; mixing and injection molding the dried mixture at the temperature of 110 ℃ to obtain a mosquito repellent tablet substrate; cutting the mosquito repellent sheet base material, placing into a flat vulcanizing machine, die-filling and hot-pressing at 160 deg.C and 18Mpa for 15min, automatically releasing pressure, and cooling the die to obtain the final product.
Comparative example 1
A commercial mosquito repellent tablet contains no sustained release agent, and the plant essential oil is Cymbopogon citratus extract.
Comparative example 2
A mosquito-repellent tablet is different from the mosquito-repellent tablet in example 1 in that 20 parts by weight of isopropyl myristate and 30 parts by weight of isopropyl palmitate are used.
The preparation method of the mosquito-repellent tablet is the same as that of example 1.
Comparative example 3
A mosquito-repellent tablet is different from the mosquito-repellent tablet in example 1 in that 10 parts by weight of isopropyl myristate, 15 parts by weight of isopropyl palmitate and 10 parts by weight of diisopropyl diester are used.
The preparation method of the mosquito-repellent tablet is the same as that of example 1.
Experimental example 1
And (3) testing the mosquito repelling effect by adopting a triple barrel method.
The test conditions are as follows: the temperature is 26 +/-1 ℃; relative humidity 60% ± 10%.
The test method comprises the following steps: a triple cylinder device is assembled before a test by using a sensitive culex population, a partition plate in the middle section is closed, 40 female mosquitoes are determined to react on a plant essential oil mosquito repellent tablet every time, 40 female mosquitoes which do not suck blood are taken for 3-5 days, treated by ethyl ether and temporarily placed in a mosquito cage, and after the mosquitoes are all recovered to be in a normal state, the mosquitoes are transferred to a middle cylinder, and a hole cover is quickly covered. Then the plant essential oil mosquito-repellent tablet is arranged at one end inside the triple cylinder, and the other end of the triple cylinder is not added with the plant essential oil mosquito-repellent tablet to be used as a blank control. When the essential oil volatilizes for 2min, the partition plate at the middle end is pulled out, timing is started, the number of mosquitoes falling off from the cylinders at the two ends is recorded every 5min, and the observation time is 180 min. Control test commercial plant essential oil mosquito repellent tablets were used for the test. The test results are shown in table 1:
the repellency rate was calculated as follows:
the repelling rate is (the number of blank end mosquitoes plus the number of knockdown mosquitoes plus the number of drug application end mosquitoes)/the total number is multiplied by 100 percent
TABLE 1 mosquito repellent tablet mosquito repellent Effect
As can be seen from the table 1, the initial repellent rate of the product is as high as 69%, the repellent rate after 7 days can still reach 42%, and the repellent rate is more than 20 times of that of similar products sold in the market, which shows that the product has good mosquito repellent effect and good release uniformity of active ingredients.
The comparative example 1 is a commercial mosquito repellent tablet, the mosquito repellent effective component of the tablet is a citronella extract, although the tablet has a certain mosquito repellent effect in the initial stage, the tablet does not have reasonable compatibility and synergy and slow release function of the mosquito repellent effective component, and the mosquito repellent effect is rapidly reduced along with the lapse of time.
Comparative example 2 and comparative example 3 have better initial effect, but the mosquito repelling effect is reduced faster along with the time due to the small dosage of the slow release agent, although the slow release agent is better than the similar products sold in the market, the difference is larger in the examples.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The mosquito repellent tablet is characterized by being prepared from the following raw materials in parts by weight:
2. the mosquito repellent tablet of claim 1, wherein said substrate is selected from the group consisting of: one or more than two of TPE, TPR, EVA, PV and silica gel.
3. The mosquito repellent tablet of claim 1, wherein said plant essential oil is selected from the group consisting of: one or more of herba Schizonepetae oil, oleum Cinnamomi, oleum Caryophylli, wintergreen oil, oleum Eucalypti, oleum Menthae Dementholatum, cedar oil, oleum Lavandula Angustifolia, oleum Camphora, citronella oil, lemon eucalyptus oil, lemon oil, and wild chrysanthemum flower oil.
4. The mosquito repellent tablet of claim 1, wherein the slow release agent is selected from the group consisting of: one or more of isopropyl myristate, isopropyl palmitate, diisopropyl adipate, acetyl tributyl citrate and acetyl tributyl citrate.
5. The mosquito repellent tablet of claim 1, wherein the bridging agent is selected from the group consisting of: one or more of di-tert-butylperoxydiisopropylbenzene, dicumyl peroxide, triallyl isocyanurate and trimethylolpropane trimethacrylate.
6. The mosquito-repellent mat according to claim 1, wherein the foaming agent is an azodicarbonamide type foaming agent, and the foaming promoter is zinc oxide powder and/or zinc stearate powder; the preservative is selected from: one or more than two of 2, 6-di-tert-butyl-4-methylphenol, sodium benzoate and potassium sorbate; the filler is perlite; the lubricant is stearic acid.
7. The mosquito-repellent mat according to any one of claims 1 to 6, further comprising 0.5 to 1.5 parts of an ultraviolet absorber, wherein the ultraviolet absorber is 2- [ 2-hydroxy-3, 5-bis (1, 1-dimethylpropylphenyl) ] -2H-benzotriazole.
8. A method for preparing a mosquito-repellent tablet according to any one of claims 1 to 7, comprising the steps of:
and (3) drying: uniformly mixing the raw materials, and drying to obtain a dry mixture;
mixing and injection molding: mixing and injection molding the dried mixture to obtain a mosquito repellent sheet base material;
hot pressing: and (3) carrying out die-filling hot pressing on the mosquito repellent sheet base material, and cooling to obtain the mosquito repellent sheet.
9. The method according to claim 8, wherein the drying step is specifically: uniformly mixing the raw materials, and drying at 40-75 ℃ for 1-3h to obtain a dried mixture;
the mixing and injection molding steps are specifically as follows: mixing and injection molding the dried mixture at the injection molding temperature of 100-120 ℃ to obtain a mosquito repellent sheet base material;
the hot pressing step specifically comprises the following steps: cutting the mosquito repellent sheet base material, placing the cut mosquito repellent sheet base material into a flat vulcanizing machine, loading the cut mosquito repellent sheet base material into a mold, carrying out hot pressing at the temperature of 160-180 ℃, the pressure of 1-20Mpa and the time of 1-20min, automatically releasing the pressure, and cooling the mold to obtain the mosquito repellent sheet.
10. The production method according to claim 8 or 9, wherein in the hot pressing step, the mosquito-repellent tablet is in the shape of a disc or a square, and the volume of the mosquito-repellent tablet is 0.30 to 3.00cm3。
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| US11832618B2 (en) | 2021-01-06 | 2023-12-05 | S. C. Johnson & Son, Inc. | Spatial insect repellent compositions |
| CN113854285A (en) * | 2021-10-25 | 2021-12-31 | 成都彩虹电器（集团）股份有限公司 | Mosquito-repelling volatile core and preparation method thereof |
| CN115669649A (en) * | 2022-11-02 | 2023-02-03 | 中山榄菊日化实业有限公司 | Mosquito-repellent incense tablet and preparation method thereof |
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