CN101946806A - Combustion type mosquito-repellent incense and its preparation method - Google Patents
Combustion type mosquito-repellent incense and its preparation method Download PDFInfo
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- CN101946806A CN101946806A CN2010100022746A CN201010002274A CN101946806A CN 101946806 A CN101946806 A CN 101946806A CN 2010100022746 A CN2010100022746 A CN 2010100022746A CN 201010002274 A CN201010002274 A CN 201010002274A CN 101946806 A CN101946806 A CN 101946806A
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- 239000000077 insect repellent Substances 0.000 title claims description 93
- 238000002485 combustion reaction Methods 0.000 title abstract description 4
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- 229920002472 Starch Polymers 0.000 claims abstract description 20
- 239000008107 starch Substances 0.000 claims abstract description 20
- 235000019698 starch Nutrition 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 239000002728 pyrethroid Substances 0.000 claims abstract description 14
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- 235000008495 Chrysanthemum leucanthemum Nutrition 0.000 claims abstract 5
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- ZCVAOQKBXKSDMS-AQYZNVCMSA-N (+)-trans-allethrin Chemical compound CC1(C)[C@H](C=C(C)C)[C@H]1C(=O)OC1C(C)=C(CC=C)C(=O)C1 ZCVAOQKBXKSDMS-AQYZNVCMSA-N 0.000 claims description 6
- FMTFEIJHMMQUJI-NJAFHUGGSA-N 102130-98-3 Natural products CC=CCC1=C(C)[C@H](CC1=O)OC(=O)[C@@H]1[C@@H](C=C(C)C)C1(C)C FMTFEIJHMMQUJI-NJAFHUGGSA-N 0.000 claims description 6
- 229940024113 allethrin Drugs 0.000 claims description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 15
- 239000000779 smoke Substances 0.000 abstract description 8
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- 241001330002 Bambuseae Species 0.000 description 3
- GQNBIMLHUAWKHJ-UHFFFAOYSA-N [4-(methoxymethyl)phenyl]methyl 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate Chemical compound C1=CC(COC)=CC=C1COC(=O)C1C(C)(C)C1C=C(C)C GQNBIMLHUAWKHJ-UHFFFAOYSA-N 0.000 description 3
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- 238000010521 absorption reaction Methods 0.000 description 2
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- 239000003795 chemical substances by application Substances 0.000 description 2
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- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
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- 244000050510 Cunninghamia lanceolata Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 208000005392 Spasm Diseases 0.000 description 1
- VXSIXFKKSNGRRO-MXOVTSAMSA-N [(1s)-2-methyl-4-oxo-3-[(2z)-penta-2,4-dienyl]cyclopent-2-en-1-yl] (1r,3r)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate;[(1s)-2-methyl-4-oxo-3-[(2z)-penta-2,4-dienyl]cyclopent-2-en-1-yl] (1r,3r)-3-[(e)-3-methoxy-2-methyl-3-oxoprop-1-enyl Chemical class CC1(C)[C@H](C=C(C)C)[C@H]1C(=O)O[C@@H]1C(C)=C(C\C=C/C=C)C(=O)C1.CC1(C)[C@H](/C=C(\C)C(=O)OC)[C@H]1C(=O)O[C@@H]1C(C)=C(C\C=C/C=C)C(=O)C1 VXSIXFKKSNGRRO-MXOVTSAMSA-N 0.000 description 1
- -1 and its flameholding Substances 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 230000003110 anti-inflammatory effect Effects 0.000 description 1
- 239000007961 artificial flavoring substance Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
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- 239000003245 coal Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
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- 239000011152 fibreglass Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000003958 fumigation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
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- 231100000225 lethality Toxicity 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 244000045947 parasite Species 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- HYJYGLGUBUDSLJ-UHFFFAOYSA-N pyrethrin Natural products CCC(=O)OC1CC(=C)C2CC3OC3(C)C2C2OC(=O)C(=C)C12 HYJYGLGUBUDSLJ-UHFFFAOYSA-N 0.000 description 1
- 229940070846 pyrethrins Drugs 0.000 description 1
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Classifications
-
- 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
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
本发明涉及一种燃烧型蚊香及其制备方法。所述燃烧型蚊香包括如下重量配比的组分：炭粉30～60％、植物粉30～60％、淀粉0.1～0.5％、拟除虫菊酯0.02～0.5％和天然野菊花5～10％。该燃烧型蚊香的制备方法包括步骤：将炭粉、植物粉、天然野菊花粉碎后充分混合，形成第一混合物；向所述第一混合物中加入淀粉，并搅拌均匀，形成第二混合物；将所述第二混合物挤压成料片，再将所述料片冲压成螺旋坯状，形成螺旋坯状体；将所述螺旋坯状体烘干得到干坯；将拟除虫菊酯附着在所述干坯上，得到燃烧型蚊香。本发明的燃烧型蚊香燃烧稳定、烟尘量小、气味清香、驱杀蚊虫效果好。The present invention relates to a burning mosquito coil and a preparation method thereof. The burning mosquito coil comprises the following components in weight ratio: 30-60% carbon powder, 30-60% plant powder, 0.1-0.5% starch, 0.02-0.5% pyrethroid and 5-10% natural wild chrysanthemum. The preparation method of the burning mosquito coil comprises the steps of: crushing the carbon powder, the plant powder and the natural wild chrysanthemum and fully mixing them to form a first mixture; adding starch to the first mixture and stirring evenly to form a second mixture; extruding the second mixture into a sheet, and then punching the sheet into a spiral blank to form a spiral blank body; drying the spiral blank body to obtain a dry blank; attaching pyrethroid to the dry blank to obtain a burning mosquito coil. The burning mosquito coil of the present invention has stable combustion, small smoke and dust, fresh smell and good mosquito repelling effect.
Description
Technical field
The invention belongs to the insecticide technical field, relate to burning type mosquito-repellent incense that contains natural mother chrysanthemum composition and preparation method thereof particularly.
Background technology
Use summer the mosquito-repellent incense mosquito repellent very general in daily life, and the kind of mosquito-repellent incense is also various day by day.Mosquito-repellent incense mainly contains electric heating piece mosquito-repellent incense, electric liquid device, burning type mosquito-repellent incense.But the electric heating piece mosquito-repellent incense is to be carrier by the absorption material, the tablet that (going out) mosquito is used is driven in the conduct that interpolation insecticide soup is made, with the supporting use of constant temperature electric heater, under certain heating-up temperature, utilize hot gas to evaporate medicament, general drug effect can be kept 6～8h, thereby plays a kind of domestic sanitary desinsection articles for use that drive (going out) mosquito effect.Electric liquid device is to utilize capillary theory, but is placed in the bottle that the desinsection soup is housed by the absorption plug, release medicine material after continuing heating, and then play a kind of domestic sanitary desinsection articles for use that drive (going out) mosquito effect.The burning type mosquito-repellent incense is to be that raw material mixes a kind of domestic sanitary desinsection articles for use that compacting forms with domestic pesticide, vegetalitas powder and powdered carbon, adhesive and essence etc.
Nowadays, electric mosquito repellent tablet miscellaneous and mosquito liquid are also come into urban family already.But the burning type mosquito-repellent incense because of its without power supply, the favor that still is subjected to consumers in general easy to use, cheap.At present, traditional mosquito-repellent incense all is to reach and help fragrant effect by spraying essence, and compound essence is volatile, can not fully be penetrated into mosquito-repellent incense inside, and common essence can not suppress the mosquito-repellent incense smoke, and does not have mosquito-repelling function.
Chinese patent " a kind of modified smokeless mosquito-repellent incense " (ZL 02121215.5) discloses a kind of modified smokeless mosquito-repellent incense.This invention is the further improvement to fumeless mosquito-repellent incense coil, adopts anthracite after destructive distillation is handled as raw material, and prepares smokeless mosquito-repellent incense with natural montmorillonite and kaolin as adhesive, makes it reach the purpose of elimination peculiar smell.Yet the mosquito-repellent incense that this method makes can not be eliminated peculiar smell well, and simultaneously, artificial flavors can not play and suppress effect preferably, and insecticide content is higher.In addition, in practical operation, the operation of this method is comparatively complicated, and the anthracitic processing time is longer, has reduced production efficiency.
In sum, need provide a kind of cheap, raw material is natural and repelling effect is good product.
Summary of the invention
For solving above-mentioned at least one technical problem, the invention provides a kind of burning type mosquito-repellent incense that contains natural mother chrysanthemum, this mosquito-repellent incense raw material is natural, can potent mosquito repellent.
In addition, the preparation method that a kind of above-mentioned burning type mosquito-repellent incense also is provided of the present invention.
In order to realize the foregoing invention purpose, the invention provides a kind of burning type mosquito-repellent incense, comprise the component of following weight proportion: powdered carbon 30～60%, plant powder 30～60%, starch 0.1～0.5%, pyrethroid 0.02～0.5% and natural mother chrysanthemum 5～10%.
One of according to the embodiment of the present invention, described plant powder is selected from any one in wood powder and the bamboo powder.
One of according to the embodiment of the present invention, described starch is alphalise starch.
One of according to the embodiment of the present invention, described pyrethroid is selected from least a in allethrin, propine chrysanthemum ester, tetrafluoro methothrin and the transfluthrin.
According to another aspect of the present invention, also provide a kind of preparation method of above-mentioned burning type mosquito-repellent incense, comprised the steps: that (a) pulverizes the back with powdered carbon, plant powder, natural mother chrysanthemum and fully mix, and forms first mixture; (b) in described first mixture, add starch, and stir, form second mixture; (c) described second mixture is squeezed into tablet, more described tablet is struck out spiral base shape, form spiral base shape body; (d) described spiral base shape body oven dry is obtained dry body; (f) with pyrethroid attached on the described dry body, obtain the burning type mosquito-repellent incense.
One of according to the embodiment of the present invention, wherein the granularity of powdered carbon, wood powder, mother chrysanthemum described in the step a is 80～150 orders.This particle size range can keep the surperficial fineness of mosquito-repellent incense and the tight ness rating of mosquito-repellent incense bar inside, is beneficial to the compacting of base shape body, and can guarantees that mosquito-repellent incense has certain intensity, and fragrant surface is clean and tidy, and color and luster is even.
One of according to the embodiment of the present invention, wherein the bake out temperature of baking step described in the steps d is 50～80 ℃, drying time is 4～8h.
One of according to the embodiment of the present invention, wherein the density of dry body described in the steps d is 0.7～0.8g/cm
3Mosquito-repellent incense in this density range is frangibility not, and makes burning velocity about 1.6～2g/h, and the active ingredient that is beneficial to mosquito-repellent incense is evenly distributed in the time at 8h.
The present invention is blended into preparation burning type mosquito-repellent incense in the mosquito-repellent incense material with natural mother chrysanthemum, can strengthen and kill the mosquito effect, the compound essence that has solved existing burning type mosquito-repellent incense employing is volatile, can not fully be penetrated into mosquito-repellent incense inside, and compound essence can not suppress the mosquito-repellent incense smoke, also do not have a unfavorable shortcoming of mosquito-repelling function and drug effect.Burning type mosquito-repellent incense fragrance of the present invention can slowly distribute, and reaching the function of removing smoke, potent mosquito repellent, and its flameholding, fume amount are little, smell delicate fragrance, to kill mosquito effective, applied range.In addition, raw material natural environmental-protective of the present invention selects for use mother chrysanthemum to replace synthetic essence as main mosquito repellent raw material, helps health and environmental friendliness.Preparation technology of the present invention is simple, and cost is low, is applicable to large-scale industrial production.
Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Embodiment
Describe embodiments of the invention below in detail, the embodiment that describes below is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
The present invention adopts natural mother chrysanthemum to replace synthetic essence, be equipped with powdered carbon, wood powder, starch and a small amount of pyrethroid again, thereby a kind of burning type mosquito-repellent incense is provided, and it mainly comprises the component of following weight proportion: powdered carbon 30～60%, plant powder 30～60%, starch 0.1～0.5%, pyrethroid 0.02～0.5% and natural mother chrysanthemum 5～10%.Wherein, described powdered carbon is the main incendiary agent of mosquito-repellent incense, and its impurity is few, cigarette is little, heating effect is good, can guarantee the sustained combustion of mosquito-repellent incense, and is beneficial to pyrethroid and fully volatilizees, to reach repelling effect.Described plant powder is the secondary incendiary agent of mosquito-repellent incense, can be selected from the group that comprises wood powder, bamboo powder, and wood powder can be selected from joss powder, pine powder, China fir powder etc., and its filling effect is good, cost is low, heating effect is good, can guarantee that mosquito-repellent incense can not extinguish midway; In addition, add the active combustion speed that the plant powder content also can guarantee mosquito-repellent incense.Starch plays the mosquito-repellent incense adhesive, can select that granularity is suitable, dissolution velocity fast, become to stick with paste the high alphalise starch of viscosity as adhesive for use, relies on it that other components are bonded together, and makes the plate-like base substrate of mosquito-repellent incense, also can not influence the fineness on mosquito-repellent incense surface.
Described pyrethrins is the former medicine of desinsection, can be selected from least a in allethrin, propine chrysanthemum ester, tetrafluoro methothrin and the transfluthrin, and the normal physiological that it can upset the insect nerve makes it by excited, spasm to paralysis and death.Pyrethroid is little with measuring very much among the present invention, working concentration is low, and is safer to people and animals, and is very little to the pollution of environment.Described natural mother chrysanthemum is for loosing pastil, and mother chrysanthemum has another name called the mountain chrysanthemum, and medical value is very big, and it not only has antibiotic, heat-clearing anti-inflammatory, improve function such as immunity of organisms, calms the nerves wind and heat dispersing, subdhing swelling and detoxicating, expelling parasite disinsection efficiency in addition.Therefore, natural mother chrysanthemum is applied in the burning type mosquito-repellent incense brings out the best in each other especially, both can strengthen and kill the mosquito effect, also can solve the unfavorable shortcoming of general burning type mosquito-repellent incense drug effect simultaneously, and the smoke that produces can eliminate the burning type mosquito incense burning time, applied range.
In one embodiment of the invention, the concrete preparation method of above-mentioned burning type mosquito-repellent incense is: at first, powdered carbon, plant wood powder, natural mother chrysanthemum are pulverized, fully mixed behind 80～150 mesh sieves excessively, form first mixture.This grinding particle size scope can keep the surperficial fineness of mosquito-repellent incense and the tight ness rating of mosquito-repellent incense bar inside, is beneficial to the compacting of base shape body, and can guarantees that mosquito-repellent incense has certain intensity, and fragrant surface is clean and tidy, and color and luster is even.In described first mixture, add starch again, and stir, form second mixture.Then, described second mixture is squeezed into tablet by tablet press machine according to a conventional method, with stamping machine described tablet is struck out spiral base shape again, form spiral base shape body.Then, spiral base shape body being put into drying room, is to advance oven dry 4～8h under 50～80 ℃ of conditions in temperature, obtains dry body.Gained dry body density is 0.7～0.8g/cm
3, not frangibility or the distortion of mosquito-repellent incense in this density range, and burning velocity is maintained about 1.6～2g/h, the active ingredient that is beneficial to mosquito-repellent incense is evenly distributed in the time at 8h.Subsequently, pyrethroid attached on the described dry body, for example can be mixed the former medicine of pyrethroid with organic solvent such as ethanol etc., be mixed with and be sprayed on the gained dry body behind the desired concn or dry body is immersed in the soup, obtain the burning type mosquito-repellent incense.At last, the burning type mosquito-repellent incense after handling is put into carton, cross shrink film, vanning.
The invention will be further described below by specific embodiment.
Embodiment 1
At first, add the 30g powdered carbon respectively, the natural mother chrysanthemum of 60g wood powder and 9.47g was pulverized it is mixed fully.Add 0.1g starch again, stir.Then, with the thickener that mixes by the tablet press machine extruding in flakes, and with stamping machine tablet is struck out the spiral base shape of mosquito-repellent incense, then, spiral base shape body is put into drying room dry 4h under 80 ℃ of conditions, obtain dry body, its density is 0.7g/cm
3Subsequently, dry body is put into sprayed the ethanolic solution 3ml that concentration is the allethrin of 0.01g/ml between pesticide spray truck.At last, the dry body after handling is put into carton, cross shrink film, vanning, promptly get the burning type mosquito-repellent incense.Products obtained therefrom is numbered 1.
Embodiment 2
At first, add the 45g powdered carbon respectively, the natural mother chrysanthemum of 45g wood powder and 7.67g was pulverized it is mixed fully.Add 0.4g starch again, stir.Then, with the thickener that mixes by the tablet press machine extruding in flakes, and with stamping machine tablet is struck out the spiral base shape of mosquito-repellent incense, then, spiral base shape body is put into drying room dry 6h under 60 ℃ of conditions, obtain dry body, its density is 0.7g/cm
3Subsequently, dry body is put into sprayed the ethanolic solution 33ml that concentration is the transfluthrin of 0.01g/ml between pesticide spray truck.At last, the dry body after handling is put into carton, cross shrink film, vanning, promptly get the burning type mosquito-repellent incense.Products obtained therefrom is numbered 2.
Embodiment 3
At first, add the 60g powdered carbon respectively, the natural mother chrysanthemum of 30g wood powder and 8.98g was pulverized it is mixed fully.Add 0.3g starch again, stir.Then, with the thickener that mixes by the tablet press machine extruding in flakes, and with stamping machine tablet is struck out the spiral base shape of mosquito-repellent incense, then, spiral base shape body is put into drying room dry 8h under 50 ℃ of conditions, obtain dry body, its density is 0.8g/cm
3Subsequently, dry body is put into sprayed the ethanolic solution 20ml that concentration is the tetrafluoro methothrin of 0.01g/ml between pesticide spray truck.At last, the dry body after handling is put into carton, cross shrink film, vanning, promptly get the burning type mosquito-repellent incense.Products obtained therefrom is numbered 3.
Embodiment 4
At first, add the 40g powdered carbon respectively, the natural mother chrysanthemum of 50g bamboo powder and 9g was pulverized it is mixed fully.Add 0.5g starch again, stir.Then, with the thickener that mixes by the tablet press machine extruding in flakes, and with stamping machine tablet is struck out the spiral base shape of mosquito-repellent incense, then, spiral base shape body is put into drying room dry 7h under 70 ℃ of conditions, obtain dry body, its density is 0.8g/cm
3Subsequently, dry body is put into sprayed the ethanolic solution 5ml that concentration is the allethrin of 0.1g/ml between pesticide spray truck.At last, the dry body after handling is put into carton, cross shrink film, vanning, promptly get the burning type mosquito-repellent incense.Products obtained therefrom is numbered 4.
Embodiment 5
At first, add the 50g powdered carbon respectively, the natural mother chrysanthemum of 40g wood powder and 9.5g was pulverized it is mixed fully.Add 0.3g starch again, stir.Then, with the thickener that mixes by the tablet press machine extruding in flakes, and with stamping machine tablet is struck out the spiral base shape of mosquito-repellent incense, then, spiral base shape body is put into drying room dry 5h under 70 ℃ of conditions, obtain dry body, its density is 0.8g/cm
3Subsequently, dry body is put into sprayed the ethanolic solution 2ml that concentration is the propine chrysanthemum ester of 0.01g/ml between pesticide spray truck.At last, the dry body after handling is put into carton, cross shrink film, vanning, promptly get the burning type mosquito-repellent incense.Products obtained therefrom is numbered 5.
The comparative example 1
Get the destructive distillation coal of 500g respectively, the charcoal of 39g, the bentonite of 6g, the kaolin of 4.9g and the allethrin of 0.1g and an amount of spices, the embodiment that provides in (ZL02121215.5) according to Chinese patent " a kind of modified smokeless mosquito-repellent incense " prepares mosquito-repellent incense, and products obtained therefrom is numbered 6.
Check the method for burning type mosquito-repellent incense of above-mentioned technology preparation as follows:
(1) smell inspection: sense organ, nonirritant peculiar smell.
(2) drug effect inspection: press the GB/T13917 test.Under the room temperature condition, adopt cylinder unit, draw 30 of examination mosquitos, put into the jam-pack plug from the central circular hole place of tube below plectane.After waiting to try worm recovery normal activity, get one section of mosquito-repellent incense to be measured at random, horizontal on mosquito coil frame; after lighting 5min in advance elsewhere, move to fumigation 1min in the cylinder, immediately mosquito-repellent incense is removed; plug, and timing beyond the Great Wall writes down down and out examination borer population at set intervals.Be limited to 20min during observation.Simultaneously, must carry out skip test, the rate of knockdown of skip test and lethality are as greater than 20%, and test need be carried out again.Above-mentioned detection method is repeated 3 times, and in repeated test, select for use the different mosquito-repellent incense for preparing among the embodiment to detect at random.And after each off-test, the washing test device.Testing result KT
50(under rated condition, 50% the examination worm required time of going down.) expression.
(3) smoke discharge amount inspection: press HJ/T 310 tests.
Test according to national environmental protection industry standard HJ/T 310, after the individual pen coiled mosquito-repellent incense is lighted, collect whole flue dust of discharging with filter membrane (paper), finish until lighting, the flue dust weight of collecting is represented with the g/ individual pen.Ultra-fine fibre glass filter paper is accurately weighed with analytical balance, filter paper is fixed on the sampling folder, pick and place filter paper with antimagnetic type tweezer during operation.Regulate the flow to 20 liter/minute of sampler, sampler is placed on apart from tested mosquito-repellent incense 10cm place, making sampling folder aligning mosquito-repellent incense.Igniting mosquito-repellent incense sampling 0.5～2h.Filter paper is taken off, put into drier, behind the 1h, accurately weigh with analytical balance.Sampling finishes, and promptly extinguishes mosquito-repellent incense, weighs up the quality that mosquito-repellent incense is lighted front and back with pharmacist balance, perhaps goes out length.Simultaneously, with the indoor blank of another filter paper work, as room air flue dust background.Testing result is represented with smoke discharge amount (mg/ individual pen).
Comparing result shows: the drug effect of the mosquito-repellent incense among the comparative example is 6-7min, and burning type mosquito-repellent incense drug effect has reached 4min among the embodiment 1-5, and smoke discharge amount is all less than the 20mg/ individual pen.As seen, compare with the mosquito-repellent incense of comparative example's preparation, the mosquito-repellent incense mosquito rate of knockdown that provides among the embodiment of the invention 1-5 has improved about about 30-50%.Concrete comparing result is as shown in table 1.
Table 1 mosquito-repellent incense proterties comparative test result
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited by claims and equivalent thereof.
Claims (8)
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