CN108601339B - Wick for heat evaporation, method for producing same, and heat evaporation method using same - Google Patents
Wick for heat evaporation, method for producing same, and heat evaporation method using same Download PDFInfo
- Publication number
- CN108601339B CN108601339B CN201780007982.9A CN201780007982A CN108601339B CN 108601339 B CN108601339 B CN 108601339B CN 201780007982 A CN201780007982 A CN 201780007982A CN 108601339 B CN108601339 B CN 108601339B
- Authority
- CN
- China
- Prior art keywords
- wick
- heat
- heat evaporation
- evaporating
- evaporation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001704 evaporation Methods 0.000 title claims abstract description 106
- 230000008020 evaporation Effects 0.000 title claims abstract description 61
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 91
- 239000000126 substance Substances 0.000 claims abstract description 70
- 230000000749 insecticidal effect Effects 0.000 claims abstract description 56
- 239000002728 pyrethroid Substances 0.000 claims abstract description 35
- 239000003814 drug Substances 0.000 claims abstract description 34
- 239000000843 powder Substances 0.000 claims abstract description 32
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 239000011230 binding agent Substances 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims description 34
- -1 glycol ether compound Chemical class 0.000 claims description 28
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 21
- 238000009835 boiling Methods 0.000 claims description 21
- 238000010304 firing Methods 0.000 claims description 12
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 11
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 11
- 239000013011 aqueous formulation Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- DDVNRFNDOPPVQJ-HQJQHLMTSA-N transfluthrin Chemical compound CC1(C)[C@H](C=C(Cl)Cl)[C@H]1C(=O)OCC1=C(F)C(F)=CC(F)=C1F DDVNRFNDOPPVQJ-HQJQHLMTSA-N 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000005874 Bifenthrin Substances 0.000 claims description 8
- OMFRMAHOUUJSGP-IRHGGOMRSA-N bifenthrin Chemical compound C1=CC=C(C=2C=CC=CC=2)C(C)=C1COC(=O)[C@@H]1[C@H](\C=C(/Cl)C(F)(F)F)C1(C)C OMFRMAHOUUJSGP-IRHGGOMRSA-N 0.000 claims description 8
- 229910002804 graphite Inorganic materials 0.000 claims description 8
- 239000010439 graphite Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000004927 clay Substances 0.000 claims description 7
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- 239000010445 mica Substances 0.000 claims description 6
- 229910052618 mica group Inorganic materials 0.000 claims description 6
- AGMMRUPNXPWLGF-AATRIKPKSA-N (2,3,5,6-tetrafluoro-4-methylphenyl)methyl 2,2-dimethyl-3-[(e)-prop-1-enyl]cyclopropane-1-carboxylate Chemical compound CC1(C)C(/C=C/C)C1C(=O)OCC1=C(F)C(F)=C(C)C(F)=C1F AGMMRUPNXPWLGF-AATRIKPKSA-N 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- HPTYUNKZVDYXLP-UHFFFAOYSA-N aluminum;trihydroxy(trihydroxysilyloxy)silane;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O[Si](O)(O)O HPTYUNKZVDYXLP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000440 bentonite Substances 0.000 claims description 3
- 229910000278 bentonite Inorganic materials 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- 239000000571 coke Substances 0.000 claims description 3
- 229910052878 cordierite Inorganic materials 0.000 claims description 3
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims description 3
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 3
- 229910052621 halloysite Inorganic materials 0.000 claims description 3
- 229910052863 mullite Inorganic materials 0.000 claims description 3
- 239000005416 organic matter Substances 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000000454 talc Substances 0.000 claims description 3
- 229910052623 talc Inorganic materials 0.000 claims description 3
- 239000011271 tar pitch Substances 0.000 claims description 3
- 229910052570 clay Inorganic materials 0.000 claims description 2
- 239000011368 organic material Substances 0.000 abstract description 9
- 239000000243 solution Substances 0.000 description 17
- 241000607479 Yersinia pestis Species 0.000 description 15
- 239000000077 insect repellent Substances 0.000 description 12
- 239000000047 product Substances 0.000 description 9
- 238000009472 formulation Methods 0.000 description 8
- 239000006193 liquid solution Substances 0.000 description 8
- 229940024113 allethrin Drugs 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 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 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 description 6
- 241000256054 Culex <genus> Species 0.000 description 6
- 241000238631 Hexapoda Species 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 description 6
- 239000003350 kerosene Substances 0.000 description 6
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 241000255925 Diptera Species 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 241000256173 Aedes albopictus Species 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000004904 shortening Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 238000010025 steaming Methods 0.000 description 3
- WXBHKHTWAPLUSQ-UHFFFAOYSA-N (2-methyl-5-prop-2-ynylfuran-3-yl)methyl 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate Chemical compound CC1(C)C(C=C(C)C)C1C(=O)OCC1=C(C)OC(CC#C)=C1 WXBHKHTWAPLUSQ-UHFFFAOYSA-N 0.000 description 2
- SPSPIUSUWPLVKD-UHFFFAOYSA-N 2,3-dibutyl-6-methylphenol Chemical compound CCCCC1=CC=C(C)C(O)=C1CCCC SPSPIUSUWPLVKD-UHFFFAOYSA-N 0.000 description 2
- GZMAAYIALGURDQ-UHFFFAOYSA-N 2-(2-hexoxyethoxy)ethanol Chemical compound CCCCCCOCCOCCO GZMAAYIALGURDQ-UHFFFAOYSA-N 0.000 description 2
- HRWADRITRNUCIY-UHFFFAOYSA-N 2-(2-propan-2-yloxyethoxy)ethanol Chemical compound CC(C)OCCOCCO HRWADRITRNUCIY-UHFFFAOYSA-N 0.000 description 2
- YJTIFIMHZHDNQZ-UHFFFAOYSA-N 2-[2-(2-methylpropoxy)ethoxy]ethanol Chemical compound CC(C)COCCOCCO YJTIFIMHZHDNQZ-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 241000256118 Aedes aegypti Species 0.000 description 2
- 241001425390 Aphis fabae Species 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- FBOZXECLQNJBKD-ZDUSSCGKSA-N L-methotrexate Chemical compound C=1N=C2N=C(N)N=C(N)C2=NC=1CN(C)C1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 FBOZXECLQNJBKD-ZDUSSCGKSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 241000255632 Tabanus atratus Species 0.000 description 2
- 241001122767 Theaceae Species 0.000 description 2
- 238000004332 deodorization Methods 0.000 description 2
- XXJWXESWEXIICW-UHFFFAOYSA-N diethylene glycol monoethyl ether Chemical compound CCOCCOCCO XXJWXESWEXIICW-UHFFFAOYSA-N 0.000 description 2
- 229940075557 diethylene glycol monoethyl ether Drugs 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000003623 enhancer Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000002917 insecticide Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229960000485 methotrexate Drugs 0.000 description 2
- LXCFILQKKLGQFO-UHFFFAOYSA-N methylparaben Chemical compound COC(=O)C1=CC=C(O)C=C1 LXCFILQKKLGQFO-UHFFFAOYSA-N 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000000361 pesticidal effect Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- SMKRKQBMYOFFMU-UHFFFAOYSA-N prallethrin Chemical compound CC1(C)C(C=C(C)C)C1C(=O)OC1C(C)=C(CC#C)C(=O)C1 SMKRKQBMYOFFMU-UHFFFAOYSA-N 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- MIZYPRIEDMSCAC-UHFFFAOYSA-N (2-methyl-4-oxo-3-prop-2-enylcyclopent-2-en-1-yl) 2,2,3,3-tetramethylcyclopropane-1-carboxylate Chemical compound CC1=C(CC=C)C(=O)CC1OC(=O)C1C(C)(C)C1(C)C MIZYPRIEDMSCAC-UHFFFAOYSA-N 0.000 description 1
- ZFHGXWPMULPQSE-SZGBIDFHSA-N (Z)-(1S)-cis-tefluthrin Chemical compound FC1=C(F)C(C)=C(F)C(F)=C1COC(=O)[C@@H]1C(C)(C)[C@@H]1\C=C(/Cl)C(F)(F)F ZFHGXWPMULPQSE-SZGBIDFHSA-N 0.000 description 1
- GQCZPFJGIXHZMB-UHFFFAOYSA-N 1-tert-Butoxy-2-propanol Chemical compound CC(O)COC(C)(C)C GQCZPFJGIXHZMB-UHFFFAOYSA-N 0.000 description 1
- ZUAURMBNZUCEAF-UHFFFAOYSA-N 2-(2-phenoxyethoxy)ethanol Chemical compound OCCOCCOC1=CC=CC=C1 ZUAURMBNZUCEAF-UHFFFAOYSA-N 0.000 description 1
- XYVAYAJYLWYJJN-UHFFFAOYSA-N 2-(2-propoxypropoxy)propan-1-ol Chemical compound CCCOC(C)COC(C)CO XYVAYAJYLWYJJN-UHFFFAOYSA-N 0.000 description 1
- OADIZUFHUPTFAG-UHFFFAOYSA-N 2-[2-(2-ethylhexoxy)ethoxy]ethanol Chemical compound CCCCC(CC)COCCOCCO OADIZUFHUPTFAG-UHFFFAOYSA-N 0.000 description 1
- BKZXZGWHTRCFPX-UHFFFAOYSA-N 2-tert-butyl-6-methylphenol Chemical compound CC1=CC=CC(C(C)(C)C)=C1O BKZXZGWHTRCFPX-UHFFFAOYSA-N 0.000 description 1
- QCAHUFWKIQLBNB-UHFFFAOYSA-N 3-(3-methoxypropoxy)propan-1-ol Chemical compound COCCCOCCCO QCAHUFWKIQLBNB-UHFFFAOYSA-N 0.000 description 1
- PSJBSUHYCGQTHZ-UHFFFAOYSA-N 3-Methoxy-1,2-propanediol Chemical compound COCC(O)CO PSJBSUHYCGQTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 241000256111 Aedes <genus> Species 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000256135 Chironomus thummi Species 0.000 description 1
- 241000633318 Culex pipiens molestus Species 0.000 description 1
- 241000144210 Culex pipiens pallens Species 0.000 description 1
- 241000256057 Culex quinquefasciatus Species 0.000 description 1
- 241000256060 Culex tritaeniorhynchus Species 0.000 description 1
- 241001506909 Culicoides arakawae Species 0.000 description 1
- YUGWDVYLFSETPE-JLHYYAGUSA-N Empenthrin Chemical compound CC\C=C(/C)C(C#C)OC(=O)C1C(C=C(C)C)C1(C)C YUGWDVYLFSETPE-JLHYYAGUSA-N 0.000 description 1
- FSYXMFXBRJFYBS-UHFFFAOYSA-N Furamethrin Chemical compound CC1(C)C(C=C(C)C)C1C(=O)OCC1=CC=C(CC#C)O1 FSYXMFXBRJFYBS-UHFFFAOYSA-N 0.000 description 1
- 241000257226 Muscidae Species 0.000 description 1
- MMOXZBCLCQITDF-UHFFFAOYSA-N N,N-diethyl-m-toluamide Chemical compound CCN(CC)C(=O)C1=CC=CC(C)=C1 MMOXZBCLCQITDF-UHFFFAOYSA-N 0.000 description 1
- 241001414857 Psyllidae Species 0.000 description 1
- VQXSOUPNOZTNAI-UHFFFAOYSA-N Pyrethrin I Natural products CC(=CC1CC1C(=O)OC2CC(=O)C(=C2C)CC=C/C=C)C VQXSOUPNOZTNAI-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000005939 Tefluthrin Substances 0.000 description 1
- MWFQAAWRPDRKDG-KOLCDFICSA-N [2,3,5,6-tetrafluoro-4-(methoxymethyl)phenyl]methyl (1r,3s)-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropane-1-carboxylate Chemical compound FC1=C(F)C(COC)=C(F)C(F)=C1COC(=O)[C@H]1C(C)(C)[C@@H]1C=C(Cl)Cl MWFQAAWRPDRKDG-KOLCDFICSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- HECGKCOICWUUJU-UHFFFAOYSA-N bis(diphenylphosphanylmethyl)-phenylphosphane Chemical compound C=1C=CC=CC=1P(C=1C=CC=CC=1)CP(C=1C=CC=CC=1)CP(C=1C=CC=CC=1)C1=CC=CC=C1 HECGKCOICWUUJU-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- LSFUGNKKPMBOMG-UHFFFAOYSA-N cycloprothrin Chemical compound ClC1(Cl)CC1(C=1C=CC=CC=1)C(=O)OC(C#N)C1=CC=CC(OC=2C=CC=CC=2)=C1 LSFUGNKKPMBOMG-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229960001673 diethyltoluamide Drugs 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003759 ester based solvent Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000004210 ether based solvent Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- BKACAEJQMLLGAV-PLNGDYQASA-N heptafluthrin Chemical compound FC1=C(F)C(COC)=C(F)C(F)=C1COC(=O)C1C(C)(C)C1\C=C/C(F)(F)F BKACAEJQMLLGAV-PLNGDYQASA-N 0.000 description 1
- ACCCMOQWYVYDOT-UHFFFAOYSA-N hexane-1,1-diol Chemical compound CCCCCC(O)O ACCCMOQWYVYDOT-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 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 1
- 239000012263 liquid product Substances 0.000 description 1
- 239000004292 methyl p-hydroxybenzoate Substances 0.000 description 1
- 235000010270 methyl p-hydroxybenzoate Nutrition 0.000 description 1
- 229960002216 methylparaben Drugs 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000000955 prescription drug Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000008213 purified water Substances 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
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 230000003381 solubilizing effect Effects 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000012719 thermal polymerization Methods 0.000 description 1
- 230000003867 tiredness Effects 0.000 description 1
- 208000016255 tiredness Diseases 0.000 description 1
- 230000005068 transpiration Effects 0.000 description 1
- JLGLQAWTXXGVEM-UHFFFAOYSA-N triethylene glycol monomethyl ether Chemical compound COCCOCCOCCO JLGLQAWTXXGVEM-UHFFFAOYSA-N 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M1/00—Stationary means for catching or killing insects
- A01M1/20—Poisoning, narcotising, or burning insects
-
- 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
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
- A61L9/02—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air by heating or combustion
- A61L9/03—Apparatus therefor
Abstract
Provided is a heat-evaporation wick which is useful for evaporating a chemical liquid containing a pyrethroid-based insecticidal component having a relatively high vapor pressure, has stable evaporation performance and high insecticidal efficacy when used, can prevent leakage of the chemical liquid due to an increase in the internal pressure of the chemical liquid container or leakage of the chemical liquid due to an inversion of the chemical liquid container, and can maintain the evaporation performance of the wick even after a lapse of a predetermined period of time from the production. A wick for heat evaporation for making vapor pressure at 30deg.C 2×10 ‑4 ～1×10 ‑2 The liquid medicine of the pyrethroid insecticidal component of mmHg is vaporized, the liquid medicine for heating vaporized comprises inorganic powder, inorganic binder and organic substance as raw materials, and the total weight (W 1 ) Weight with organic material (W 2 ) Ratio (W) 1 /W 2 ) Is set to 4.0 to 10.
Description
Technical Field
The present invention relates to a wick for heat evaporation for evaporating a chemical liquid containing a pyrethroid (pyrethroid) insecticidal component having a relatively high vapor pressure, a method for producing the same, and a heat evaporation method using the wick for heat evaporation.
As a flying pest control product for controlling flying pests such as mosquitoes, a so-called "mosquito repellent" has been commercially available in which a liquid absorbent core is immersed in a liquid chemical containing a pesticidal component, the absorbed liquid chemical is guided to an upper portion of the liquid absorbent core, and the liquid absorbent core is heated to evaporate the pesticidal component into the atmosphere. The insecticidal component of mosquito-repellent incense liquid is generally pyrethroid insecticidal component. Pyrethroid insecticidal compositions have been mainly composed of allethrin (allethrin), prallethrin (prallethrin), bifenthrin (furamethrin), etc., but in recent years, new compositions such as transfluthrin (transfluthrin) and bifenthrin (metafluthrin) having excellent insecticidal activity have been used.
Further, the chemical liquid used for the mosquito repellent liquid includes an oily prescription using kerosene as a base (base) and an aqueous prescription using water as a base. Although the mosquito repellent liquid has been mainly used in the world up to now, the aqueous formulation is expected to be expected to increase in demand for the aqueous formulation since the aqueous formulation can reduce the risk of smoke and fire and further easily enhance the insecticidal effect on pests as compared with the oily formulation.
As a wick applicable to an aqueous chemical solution, for example, a wick obtained by firing a mixture of an inorganic powder, an organic substance and an inorganic binder at 600 to 2000 ℃ is known (for example, refer to patent document 1). The wick of patent document 1 is a liquid medicine for containing a conventional pyrethroid-based insecticidal component such as allethrin, propargyl pyrethrin, or the like, and shows that it is applicable to an aqueous insecticidal liquid containing a polyoxyalkylene alkyl ether-based solubilizing agent.
Prior art literature
Patent literature
Patent document 1: japanese patent laid-open No. 4-117303
Disclosure of Invention
Problems to be solved by the invention
However, since the mosquito-repellent incense liquid is a product that is continuously used for a long period of time, when designing the wick for heat evaporation, it is necessary to sufficiently consider the properties of the chemical agent contained in the chemical liquid used so that the wick does not deteriorate, and it is necessary to take time for the material of the wick or the manufacturing process. In this regard, since the wick of patent document 1 does not use a paste (organic binder) such as starch, it can be said that physical deterioration of the wick is hardly caused if the wick is a liquid medicine of an aqueous formulation containing conventional pyrethroid insecticidal components such as allethrin, propargythrin, and bifenthrin. However, it is not clear whether the wick of patent document 1 can be applied to a liquid medicine containing a novel pyrethroid insecticidal component such as transfluthrin or bifenthrin. The novel pyrethroid insecticidal composition such as transfluthrin and bifenthrin has a higher vapor pressure and different properties than the conventional insecticidal composition such as allethrin, propathrin and bifenthrin. Therefore, even if the wick of patent document 1 is directly used as it is for a chemical liquid containing a pyrethroid-based insecticidal component having a relatively high vapor pressure, it is still unclear whether the desired insect-repellent performance can be exhibited, and there is a risk that the wick will be degraded by the chemical liquid.
Further, in the conventional wick including patent document 1, if the period from the time when the wick is filled with the chemical liquid to the time when the use of the wick is actually started (until the wick is heated) is long, the effective period of the mosquito repellent liquid tends to be short, and there is room for improvement in the stability of the evaporation performance of the wick.
The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a heat-evaporation wick that can be used for evaporating a chemical liquid containing a pyrethroid-based insecticidal component having a relatively high vapor pressure, has a stable evaporation performance and a high insecticidal efficacy when used, can prevent leakage of the chemical liquid due to an increase in the internal pressure of the chemical liquid container or leakage of the chemical liquid due to an overturning of the chemical liquid container, and can maintain the evaporation performance of the wick even after a certain period of time has elapsed from the production. Further, an object of the present invention is to provide a method for producing such a wick for heat evaporation, and a heat evaporation method using such a wick for heat evaporation.
Means for solving the problems
The wick for heat evaporation according to the present invention for solving the above problems is characterized in that:
a wick for heat evaporation for making vapor pressure at 30deg.C 2×10 -4 ～1×10 -2 The liquid medicine of the pyrethroid insecticidal component of mmHg is vaporized, the liquid medicine for heating and vaporized comprises inorganic powder, inorganic binder and organic substance as raw materials, wherein the total weight (W 1 ) Is in a weight (W) with the organic matter 2 ) Ratio (W) 1 /W 2 ) Is set to 4.0 to 10.
Preferably, the organic material contains a carbonaceous powder, and the carbonaceous powder is at least one selected from the group consisting of graphite, carbon black, activated carbon, charcoal, and coke.
Preferably, the organic material further comprises an organic binder.
Preferably, the chemical solution further comprises a glycol ether compound and/or a glycol compound having a boiling point of 150 to 300 ℃ and water.
Preferably, the pyrethroid-based insecticidal component is at least one selected from the group consisting of transfluthrin, bifenthrin and profluthrin (profluthrin).
Preferably, the inorganic powder is at least one selected from the group consisting of mica, alumina, silica, talc, mullite, cordierite and zirconia.
Preferably, the inorganic binder is at least one selected from the group consisting of clay, bentonite, halloysite, and tar pitch.
According to the heat-evaporating wick of the present invention, since an appropriate substance is selected as a material of the heat-evaporating wick and the respective materials are blended in an appropriate ratio, stable evaporating performance and high insecticidal efficacy can be achieved at the time of use of the heat-evaporating wick, and leakage of a chemical liquid due to an increase in the internal pressure of the chemical liquid content or leakage of a chemical liquid due to an overturning of the chemical liquid container can be prevented. Further, the heat-evaporation wick can maintain the evaporation performance of the wick even after a certain period of time has elapsed from the production of the wick, and is highly practical.
The method for manufacturing a wick for heat evaporation according to the present invention for solving the above-described problems is characterized by comprising:
a method for producing a wick for heat evaporation, which comprises a step of bringing a vapor pressure at 30 ℃ to 2X 10 -4 ～1×10 -2 A method for producing a pyrethroid insecticidal composition having an mmHg by evaporating a medicinal liquid, comprising: a mixing step of mixing an inorganic powder as a raw material, an inorganic binder, and an organic substance; and a firing step of firing the mixed raw materials, wherein the raw materials are prepared in the mixing step so that the total weight (W 1 ) Weight (W) of the organic matter 2 ) Ratio (W) 1 /W 2 ) 4.0 to 10.
Preferably, the firing step is performed at 600 to 2000 ℃.
According to the method for producing a heat-evaporating wick of the present invention, since the mixing step and the baking step are carried out under appropriate conditions, a heat-evaporating wick with high practicality can be produced as described above.
The heating and steaming method according to the present invention for solving the above problems is characterized in that:
a heat evaporation method using the heat evaporation wick according to any one of the above, wherein the pyrethroid insecticidal component is evaporated into the atmosphere by immersing the heat evaporation wick in the chemical liquid, and guiding the absorbed chemical liquid to the upper portion of the heat evaporation wick and heating the chemical liquid at 60 to 130 ℃.
According to the heating and evaporating method of the present invention, since the liquid medicine is heated and evaporated using the wick for heating and evaporating of the present invention, stable evaporating performance and high insecticidal efficacy can be achieved, and leakage of the liquid medicine due to an increase in the internal pressure of the liquid medicine content or leakage of the liquid medicine due to an overturning of the liquid medicine container can be prevented. Further, the vapor-dispersing performance of the wick can be maintained, and therefore the wick for heat vapor-dispersing has high practicality.
Detailed Description
Hereinafter, a method of manufacturing the wick for heat evaporation according to the present invention and a method of heat evaporation using the wick for heat evaporation will be described. However, the present invention is not intended to be limited to the embodiments or examples described below.
The liquid medicine for mosquito-repellent incense liquid (hereinafter, simply referred to as "liquid medicine") which can be applied to the wick for heating and evaporating of the present invention contains vapor pressure of 2X 10 at 30 °c -4 ～1×10 -2 Pyrethroid-based insecticidal compositions of mmHg. Examples of the pyrethroid-based insecticidal component include: transfluthrin, methotrexate, profluthrin, enetetramethrin (empenthrin), cycloprothrin (terallethrin), bifluthrin (meperfluthrin), tefluthrin (heptafluthrin), 4-methoxymethyl-2,3,5, 6-tetrafluorobenzyl-pyrethrin (4-methoxymethyl-2, 3,5, 6-tetrafluorobenzyl-chrysanthemate), 4-methoxymethyl-2,3,5, 6-tetrafluorobenzyl-2, 2-dimethyl-3- (2-chloro-2-trifluoromethylvinyl) cyclopropanecarboxylate, and the like. Among them, transfluthrin, methotrexate and profluthrin are preferable, and transfluthrin is more preferable, in view of heat-transpirability, insecticidal efficacy, stability and the like. The pyrethroid-based insecticidal composition listed above may be used alone or in a mixture of plural kinds. In addition, in the case where an optical isomer or a geometric isomer based on asymmetric carbon exists in the acid moiety or the alcohol moiety in the pyrethroid-based insecticidal composition, the optical isomer or the geometric isomer is also included in the pyrethroid-based insecticidal composition usable in the present invention.
The content of the pyrethroid-based insecticidal component in the liquid medicine is preferably 0.1 to 3.0 mass%. When the content is less than 0.1 mass%, there is a risk of decreasing the insecticidal efficacy. On the other hand, if the content exceeds 3.0 mass%, the properties of the drug solution may be hindered.
As the solvent contained in the chemical liquid, either kerosene (oil-based formulation) or water (aqueous formulation) can be used, and as described above, the aqueous formulation is preferable because it can reduce the risk of smoke and fire and can easily enhance the insecticidal effect against pests as compared with the oil-based formulation. In the case of the aqueous formulation, it is preferable to blend a glycol ether compound and/or glycol compound having a boiling point of 150 to 300 ℃, preferably 200 to 260 ℃, with the pyrethroid-based insecticidal component. The glycol ether compound and/or the glycol compound have the following actions: the pyrethroid insecticidal composition is prepared by (1) solubilizing the pyrethroid insecticidal composition, (2) improving the heat-transpirability, and (3) maintaining a certain ratio of the three components between the pyrethroid insecticidal composition and water, and then heat-transpiration. Further, the glycol ether compound and/or the pest to which the glycol compound is sensitive can act as a "efficacy enhancer", and even in the case of a pest whose sensitivity is reduced, there is an effect of reducing the degree of reduction in the insecticidal efficacy.
The content of the glycol ether compound and/or the glycol compound in the chemical liquid is preferably 10 to 70% by mass, more preferably 30 to 60% by mass. When the content is less than 10% by mass, not only the aqueous formulation is hindered, but also the effect as an efficacy enhancer and the effect of reducing the degree of decrease in insecticidal efficacy are lacking. On the other hand, even if the content exceeds 70 mass%, not only the insecticidal effect peaks, but also the risk of smoke and fire increases, and the advantage as an aqueous prescription is impaired.
Examples of the glycol ether compound and/or the glycol compound include: diethylene glycol monoethyl ether (boiling point: 202 ℃ C.), diethylene glycol monoisopropyl ether (boiling point: 207 ℃ C., hereinafter referred to as DEMIP), diethylene glycol monobutyl ether (boiling point: 231 ℃ C., hereinafter referred to as DEMB), diethylene glycol monoisobutyl ether (boiling point: 220 ℃ C., hereinafter referred to as DEMIB), diethylene glycol monohexyl ether (boiling point: 259 ℃ C., hereinafter referred to as DEMIM H), diethylene glycol mono-2-ethylhexyl ether (boiling point: 272 ℃ C.), diethylene glycol monophenyl ether (boiling point: 283 ℃ C.), triethylene glycol monomethyl ether (boiling point: 249 ℃ C.), propylene glycol mono-t-butyl ether (boiling point: 151 ℃ C.), dipropylene glycol monomethyl ether (boiling point: 188 ℃ C.), dipropylene glycol monopropyl ether (boiling point: 210 ℃ C., hereinafter referred to as DPMP), 3-methoxy-1, 2-propanediol (boiling point: 220 ℃ C.), hexanediol (boiling point: 197 ℃ C., hereinafter referred to as HG), and the like. Among them, diethylene glycol monoethyl ether, diethylene glycol monoisopropyl ether, diethylene glycol monobutyl ether, diethylene glycol monoisobutyl ether, and diethylene glycol monohexyl ether are preferable, and diethylene glycol monobutyl ether is more preferable. The above-listed glycol ether compound and/or glycol compound may be used alone or in a mixture of plural kinds.
When the medicinal liquid is prepared as an oily formulation, a hydrocarbon solvent such as kerosene (kerosene) having a boiling point of 150 to 350 ℃ is used. When a hydrocarbon solvent is exemplified, there may be mentioned: normal paraffins, isoparaffins, naphthenes, and the like corresponding to saturated aliphatic or alicyclic hydrocarbons having 12 or more carbon atoms. The above-listed hydrocarbon solvents may be used alone or in a mixture of two or more.
Other various components may be added to the medicinal liquid. For example, other pyrethroid insecticidal components such as allethrin and propathrin may be suitably blended; repellent ingredients such as DEET, terpene compounds, natural essential oils, and fragrances; an antimicrobial agent; a mildew inhibitor; stabilizers such as dibutylhydroxytoluene (BHT) and methylparaben; a pH regulator; a colorant; deodorant such as tea extract or tea dry distillation liquid, etc. Further, when preparing a medicinal liquid of an aqueous prescription or an oily prescription, it is also possible to suitably use, in addition to water: lower alcohols such as ethanol and isopropanol; hydrocarbon solvents such as kerosene (kerosene); ester or ether solvents, solubilizers, and dispersants. The chemical solution thus prepared is filled in a container body (not shown) having a wick for heat evaporation, to thereby form a pest control product (mosquito repellent liquid).
The container for accommodating the medical liquid is generally polyolefin such as polypropylene; plastic containers such as polyester and polyvinyl chloride. A wick is attached to the upper portion of the chemical liquid container via an inner plug. In the case of the aqueous formulation, the material of the chemical liquid container is preferably a polyolefin plastic such as polypropylene in consideration of physical properties of the glycol ether compound and/or the glycol compound.
However, the wick for heating and evaporating mosquito-repellent incense liquid is generally divided into a burned wick, a twisted wick and a bonded wick, but this is the caseAs a result of intensive studies on various liquid-absorbing cores, the inventors have found that, as a raw material containing an inorganic powder, an inorganic binder and an organic substance, the total weight (W 1 ) Weight with organic material (W 2 ) Ratio (W) 1 /W 2 ) Set to 4.0 to 10, the vapor pressure at 30 ℃ is 2X 10 -4 ～1×10 -2 The chemical solution of the pyrethroid insecticide component of mmHg is physically and chemically stable, and can be effectively absorbed by capillary phenomenon, and even if the elapsed period from the filling of the liquid solution into the liquid solution to the energization use (i.e., the period until the start of the heating of the liquid solution) is prolonged, there is no concern about shortening the effective use period, and the excellent evaporation performance of the liquid solution can be maintained throughout the entire period from the time of production to the time of use, and the leakage of the liquid solution due to the rise of the internal pressure of the liquid solution container or the leakage of the liquid solution due to the overturn of the liquid solution container at the time of use can be prevented, so that the present invention has been completed.
Here, when the wick for heat evaporation is a fired wick, it can be obtained by firing a mixture containing (a) an inorganic powder, (b) an inorganic binder and (c) an organic substance at 600 to 2000 ℃, and the amount of (b) and (c) blended is small, and it is generally often called a porous ceramic wick only from the one formed of (a).
Examples of the inorganic powder include: mica, alumina, silica, talc, mullite, cordierite, zirconia, and the like. Among them, mica is a preferable material because it can form relatively uniform micropores in a wick for heat evaporation for mosquito-repellent incense liquid. The above-listed inorganic powders may be used alone or in a mixture of two or more kinds. The content of the inorganic powder in the wick for heat evaporation is preferably 10 to 90 mass%, more preferably 30 to 70 mass%. The shape of the inorganic powder is preferably a fine powder of 50 mesh or less from the viewpoint of physical properties such as appearance, liquid absorption, strength, and the like. However, in the process of producing the wick for heat evaporation, the case of the treatment such as pulverization is not limited thereto.
Examples of the inorganic binder include: clay (kaolin clay), bentonite, halloysite, and other various clays; tar pitch; water glass, and the like. Among them, clay is a preferable material because of its excellent adhesion. The above-listed inorganic binders may be used alone or in a mixture of plural kinds. The content of the inorganic binder in the wick for heat evaporation is preferably 5 to 50% by mass, more preferably 10 to 40% by mass. Although the inorganic binder lacks a binding effect at normal temperature, it exhibits a sufficient binding effect by firing at 600 to 2000 ℃, and is suitable for use as a wick for heat evaporation.
Examples of the organic substance include: carbonaceous powders such as graphite, carbon black, activated carbon, charcoal and coke, and organic binders such as carboxymethyl cellulose (CMC), acrylic resins and polyolefin resins. Among them, graphite is a preferable material because of its relatively uniform shape and low impurity content. When a carbonaceous powder such as graphite is blended, the appearance, color tone, liquid absorption, strength, and the like of the wick for heat evaporation can be improved. The carbonaceous powder or the organic binder listed above may be used alone or in a mixture of a plurality of types. The organic substance content in the wick for heat evaporation is preferably 5 to 40 mass%. If the amount is within this range, a gas such as carbon monoxide or carbon dioxide is generated during the firing of the wick for heat evaporation, whereby continuous pores are formed in the wick for heat evaporation, and a porous structure sufficient for exhibiting liquid absorption performance by capillary phenomenon can be formed.
In addition to the above substances, the wick for heat evaporation may be appropriately added: antioxidants such as preservative, 4' -methylenebis (2-methyl-6-t-butylphenol), and stearyl beta- (3, 5-di-t-butyl-4-hydroxyphenyl) propionate.
However, if the elapsed period from the filling of the liquid medicine with the liquid medicine to the energization of the liquid medicine (that is, the period from the start of the heating of the liquid medicine) of the conventional baked core is long, the effective use period is shortened although the property of the liquid medicine is not affected at allShort, there remains room for improvement in terms of stability of the evaporation performance of the wick. As a result of further improved studies, the present inventors have found that a pyrethroid-based insecticidal composition having a vapor pressure of 2X 10 at 30℃is used -4 ～1×10 -2 In the case of blending the raw material for the calcined core, the pyrethroid-based insecticidal component in the range of mmHg is prepared so that the total weight (W 1 ) Weight with organic material (W 2 ) Ratio (W) 1 /W 2 ) When the ratio is 4.0 to 10, the above-mentioned problems can be solved. Regarding the above ratio (W 1 /W 2 ) It is considered that the stability of the evaporation performance of the wick during the lapse of time before use is not sufficiently confirmed, but the fine pores generated due to the inorganic powder and the porous pores generated due to the loss of the organic material by burning and dissolution are effectively distributed in the interior of the wick, which contributes to the stability of the evaporation performance. Further, it is assumed that the distribution of the micropores and the porous pores on the surface of the wick maintains the adhesion with an internal plug described later, and the leakage of the chemical solution is prevented.
The wick for heat evaporation of the present invention thus obtained is suitable for a liquid product in which a chemical liquid is heat-evaporated through the wick. That is, the chemical solution is stored in a chemical solution container, and the lower portion of the wick for heat evaporation is immersed in the aqueous insecticide composition via an inner plug. Then, the chemical solution in the chemical solution container is guided to the upper portion of the heating/evaporating wick, and is heated to 60 to 130 ℃ by a heating element disposed at the upper portion of the heating/evaporating device, and is evaporated into the atmosphere. Since the heat-evaporating wick faces the hollow cylindrical heat dissipation cylinder constituting the heat-generating body with a gap therebetween, the target surface temperature (for example, 60 to 130 ℃) of the upper portion of the heat-evaporating wick is set to be higher than the target surface temperature (for example, 80 to 150 ℃) of the upper portion of the wick. If the heating temperature of the chemical liquid is too high, there is a possibility that the chemical liquid evaporates early or thermal decomposition or polymerization of the chemical liquid occurs, and as a result, high boiling point substances are generated on the surface of the wick, and the high boiling point substances accumulate, thereby causing clogging. On the other hand, if the heating temperature is too low, the chemical solution is difficult to evaporate, and sufficient insect-repellent performance cannot be achieved.
The heat-evaporating device used in the wick for heat-evaporating of the present invention may be configured by attaching various functions or members to the conventional device, in addition to the above-described heating element. The upper part of the heating element is provided with a safety upper protective cover, and an opening is formed in the central part thereof, and the size and shape thereof may be arbitrary as long as the evaporating chemical liquid is excessively condensed and adheres to the protective cover or the container body. For example, it is effective to hang down a cylindrical heat dissipating tube having an inner diameter of 10mm to 30mm from the vicinity of the opening, and in this case, the distance between the lower end of the heat dissipating tube and the top surface of the heat generating body is usually preferably in the range of 1mm to 5mm from the viewpoint of heat resistance and heat dissipating performance of the heat dissipating tube portion. Further, a power line, an ON/OFF operation switch, an indicator lamp (pilot lamp), or the like may be suitably attached to the heating element.
According to the method of heating and evaporating using the wick for heating and evaporating of the present invention, in living room, bedroom, etc., pyrethroid sensitivity systems are self-evident, and are also directed against culex species such as culex pallidum (Culex pipiens pallens), culex trichinensis (Culex tritaeniorhynchus), culex tiredness (Culex quinquefasciatus), culex harassment (Culex pipiens molestus), etc. with reduced sensitivity; aedes Aedes aegypti (Aedes aegypti), aedes albopictus (Aedes albopictus) and other Aedes (Aedes albopictus) and midge, and the like, and also shows practical insecticidal efficacy against other harmful flying insects such as houseflies, butterfly flies (psyllidae), flea flies (phoridfly), horsefly (horse fly), black fly (black fly) and biting midge, and the like, and therefore has extremely high usefulness.
Examples
Next, the wick for heat evaporation and the heat evaporation method using the same according to the present invention will be described in more detail with reference to specific examples.
Example 1
An aqueous prescription drug solution was prepared by mixing 0.9 mass% of transfluthrin, 50 mass% of diethylene glycol monobutyl ether (DEMB), 0.1 mass% of dibutylhydroxytoluene (BHT) as a stabilizer, and 49 mass% of purified water.
A mixture of 55 mass% of mica powder as an inorganic powder, 32 mass% of clay powder as an inorganic binder, 10 mass% of graphite as an organic material, and 3 mass% of carboxymethyl cellulose as an organic binder was added to water and kneaded, and the kneaded product was extruded while being pressurized, air-dried, and then baked at 1000℃to obtain a wick for heat evaporation (round bar having a diameter of 7mm and a length of 66 mm) of example 1. In the wick for heat evaporation, the total weight (W 1 ) Weight of graphite (W) 2 ) Ratio (W) 1 /W 2 ) The composition ratio of (2) was 6.7.
45mL of the aqueous chemical formulation was filled in a plastic container, and after the heat-evaporating wick was filled via an inner plug, the container was attached to a heat-evaporating apparatus [ for example, an apparatus described in Japanese patent No. 2926172, etc., and a hollow cylindrical heat-dissipating cylinder (inner diameter: 10mm, height: 10mm, surface temperature: 137 ℃) was provided around the upper portion of the wick ], to thereby produce a pest control product.
The pest control article was placed in a 6 tatami room (25 m 3 ) Is used for 12 hours every 1 day, and as a result, is not bitten by mosquitoes for 60 days (about 700 hours).
Examples 2 to 9 and comparative examples 1 to 4
According to example 1, the chemical solutions and heat-evaporating wicks used in examples 2 to 9 were prepared, and the chemical solutions and heat-evaporating wicks were loaded in a heat-evaporating apparatus to prepare pest control products of examples 2 to 9. Then, the measurement and test of (1) to (3) described below were performed for each pest control product. For comparison, the same measurement and test were also performed for the pest control products of comparative examples 1 to 4. Table 1 shows the formulation of the chemical solutions and the formulation of the wick for heat evaporation in each of the examples and comparative examples. The prescription and the formulation of example 1 are also shown in table 1.
TABLE 1
(1) Evaporative properties
Room in 6 tatami (25 m) 3 ) The center of the test heating and evaporating device is placed for electrifying and heating. The insecticidal component was extracted with acetone after trapping (trap) with a silica gel packed column for each predetermined time, and the amount of the insecticidal component evaporated per unit time was determined by gas chromatography analysis. The evapotranspiration was obtained at the initial stage of use (day 2 of use), the middle stage of use (day of the remaining period of validity of about 50%), and the later stage of use (days before the period of validity).
(2) Insecticidal efficacy test
Two plastic cylinders having an inner diameter of 20cm and a height of 43cm were stacked, and a cylinder having an inner diameter of 20cm and a height of 20cm (a place where insects to be tested were placed) was placed on the plastic cylinders with a 16-mesh metal mesh interposed therebetween, and the same 16-mesh metal mesh was interposed therebetween, and further a cylinder having the same diameter and a height of 20cm was placed thereon. The 4-piece stacked cylinder was placed on a circular plate placed on a platform via a rubber gasket (rubber packing). A circular hole of 5cm is arranged in the center of the circular plate, and a heating and steaming device is arranged above the circular hole for electrifying and heating. After 4 hours of power on, approximately 20 female culex pallidus adults of the test insects were released into the upper section 3 cylinder. Calculating the tested insects which fall down and turn over along with the time to obtain KT 50 Values. Moreover, all test insects were recovered after 20 minutes of exposure and the mortality of these all test insects was investigated after 24 hours. The insecticidal efficacy test was conducted at the initial stage of use (day 2 of use) and at the later stage of use (days before the expiration date).
(3) Shortening rate
In order to evaluate the stability over time of the evaporation performance of a wick in commercial circulation, a plastic container was filled with a chemical solution, and the wick was set and stored at 40 ℃. Samples before the start of storage and after 6 months (corresponding to 3 years at normal room temperature) were loaded into a predetermined heating and steaming device to conduct a use test, and the number of effective days was determined. Then, the shortening rate= [ days of samples after 6 months ]/[ days of samples before the start of storage ] was obtained as an index of the stability with time.
The test results in each example and comparative example are shown in table 2.
TABLE 2
The results of the test were: the wicks for heat evaporation of examples 1 to 9 were prepared by mixing inorganic powder and inorganic binder together (W 1 ) Weight with organic material (W 2 ) Ratio (W) 1 /W 2 ) It is needless to say that the liquid medicine container is set to 4.0 to 10, and therefore stable evaporation performance and high insecticidal efficacy are achieved at the time of use, and leakage of the liquid medicine due to an increase in the internal pressure of the liquid medicine container or leakage of the liquid medicine due to an overturning of the liquid medicine container can be prevented, and even if the period of time from the time of charging the liquid medicine into the liquid medicine to the time of use by energization becomes long, the effective use period is not substantially shortened, and the excellent evaporation performance of the liquid medicine core can be maintained throughout the entire period from the time of manufacture to the time of use. Thus, it was confirmed that the wick for heat evaporation of the present invention is extremely effective in controlling flying pests, particularly mosquitoes. It is clear from a comparison of example 8 and example 9 that, for example, when an aqueous chemical solution is used, the boiling point of the glycol ether compound and/or the glycol compound is preferably in the range of 150 to 300 ℃. Further, it is preferable that the raw material of the firing core is mica as an inorganic powder, clay as an inorganic binder, and graphite as a carbonaceous powder.
In contrast, the total weight (W 1 ) Weight with organic material (W 2 ) Ratio (W) 1 /W 2 ) The wicks of comparative examples 2 to 4, from which 4.0 to 10 were separated, were excellent in relatively stable evaporation performance and high insecticidal efficacy, which were comparable to those of the examples, but were used after filling the wick with the liquid medicine, and during the period from the time when the wick was energized to the time when the wick was usedIn the long case, a tendency to shorten the effective use period is observed. Further, as shown in comparative example 1, the vapor pressure of the insecticidal component was separated from 2×10 -4 ～1×10 -2 dl-d-T80-allethrin in the range of mmHg, even if the above ratio (W 1 /W 2 ) In the range of 4.0 to 10, not only satisfactory transpiration performance and insecticidal efficacy are not obtained, but also the effective use period is shortened.
Industrial applicability
The present invention can be used for pest control products for humans and pets, and can be used for other purposes such as pest control, mite control, sterilization, antibacterial, deodorization, and deodorization.
Claims (10)
1. A wick for heat evaporation for making vapor pressure at 30deg.C 2×10 -4 mmHg～1×10 -2 A pyrethroid insecticidal component of mmHg, a glycol ether compound and/or a glycol compound having a boiling point of 150 to 300 ℃ and water,
the liquid absorption core for heating and evaporating is a firing core which comprises inorganic powder, inorganic binder and organic substance as raw materials,
the organic matter comprises carbonaceous powder,
the total weight W of the inorganic powder and the inorganic binder in the raw materials 1 Weight W with the organic substance 2 Ratio W of (2) 1 /W 2 Is set to 4.0 to 10.
2. A wick for heat evaporation as described in claim 1, wherein the content of said organic substance is 5 to 40 mass%.
3. A wick for heat evaporation as described in claim 2, wherein said organic substance further comprises an organic binder.
4. A wick for heat evaporation as described in any one of claims 1 to 3, wherein said pyrethroid-based insecticidal composition is at least one selected from the group consisting of transfluthrin, bifenthrin and profluthrin.
5. A wick for heat evaporation according to any one of claims 1 to 3, wherein said inorganic powder is at least one selected from the group consisting of mica, alumina, silica, talc, mullite, cordierite and zirconia.
6. A wick for heat evaporation as described in any of claims 1 to 3, wherein said inorganic binder is at least one selected from the group consisting of clay, bentonite, halloysite and tar pitch.
7. A wick for heat evaporation as described in any one of claims 1 to 3, wherein said carbonaceous powder is at least one selected from the group consisting of graphite, carbon black, activated carbon, charcoal and coke.
8. A method for producing a wick for heat evaporation, which comprises a step of bringing a vapor pressure at 30 ℃ to 2X 10 -4 mmHg～1×10 -2 A method for producing a pyrethroid insecticidal composition having an mmHg boiling point of 150 to 300 ℃ by evaporating a liquid chemical comprising a glycol ether compound and/or a glycol compound and water in an aqueous formulation, the method comprising:
a mixing step of mixing an inorganic powder as a raw material, an inorganic binder, and an organic substance; and
a firing step of firing the mixed raw materials,
in the mixing step, the raw material is prepared so that the total weight W of the inorganic powder and the inorganic binder is equal to or smaller than the total weight W 1 Weight W with the organic substance 2 Ratio W of (2) 1 /W 2 Is made to be 4.0 to 10 percent,
the organic substance comprises carbonaceous powder.
9. The method for producing a wick for heat evaporation according to claim 8, wherein the firing step is performed at 600 to 2000 ℃.
10. A heat-evaporating method using the wick for heat-evaporating as claimed in any one of claims 1 to 7, wherein,
the liquid medicine is immersed in the liquid medicine by the wick for heating and evaporating, the absorbed liquid medicine is guided to the upper part of the wick for heating and evaporating, and the liquid medicine is heated at 60-130 ℃, so that the pyrethroid insecticidal component is evaporated into the atmosphere.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016011735 | 2016-01-25 | ||
| JP2016-011735 | 2016-01-25 | ||
| PCT/JP2017/002201 WO2017130920A1 (en) | 2016-01-25 | 2017-01-24 | Liquid-absorbing wick for heating transpiration, method for producing same, and heating transpiration method using liquid-absorbing wick for heating transpiration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108601339A CN108601339A (en) | 2018-09-28 |
| CN108601339B true CN108601339B (en) | 2024-03-08 |
Family
ID=59397872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780007982.9A Active CN108601339B (en) | 2016-01-25 | 2017-01-24 | Wick for heat evaporation, method for producing same, and heat evaporation method using same |
Country Status (4)
| Country | Link |
|---|---|
| JP (2) | JP6716613B2 (en) |
| CN (1) | CN108601339B (en) |
| TW (1) | TWI679936B (en) |
| WO (1) | WO2017130920A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI664906B (en) * | 2017-01-06 | 2019-07-11 | 日商大日本除蟲菊股份有限公司 | Insect pest control product and insect pest control method |
| KR20220002598A (en) * | 2019-07-12 | 2022-01-06 | 다이니혼 죠츄기쿠 가부시키가이샤 | Insecticide effect enhancer, pest control method, and aqueous insecticide composition for heat evaporation |
| CN113455477A (en) * | 2021-06-30 | 2021-10-01 | 中山榄菊日化实业有限公司 | Mosquito-repellent incense liquid core rod and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1130018A (en) * | 1995-03-02 | 1996-09-04 | 住友化学工业株式会社 | Liquid absorbing core stick for heating and evapotranspiration |
| JPH0919252A (en) * | 1995-07-04 | 1997-01-21 | Dainippon Jochugiku Co Ltd | Liquid-sucking wick for aqueous insecticide and thermal evaporation insecticidal method using the wick |
| CN1184586A (en) * | 1996-11-12 | 1998-06-17 | 大日本除虫菊株式会社 | Long duration pesticide pellet, and method for heating the pellet and fumigating |
| CN1407852A (en) * | 2000-03-06 | 2003-04-02 | 富马基拉株式会社 | Fan type chemicals diffusing device |
| JP4878352B2 (en) * | 2008-03-26 | 2012-02-15 | 大日本除蟲菊株式会社 | Method of heat transpiration of aqueous deodorant composition |
| JP2012121825A (en) * | 2010-12-07 | 2012-06-28 | Dainippon Jochugiku Co Ltd | Insect pest control agent and inset pest control method using the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08239303A (en) * | 1988-04-19 | 1996-09-17 | Sumitomo Chem Co Ltd | Liquid-sucking wick for thermal evaporation |
-
2017
- 2017-01-24 CN CN201780007982.9A patent/CN108601339B/en active Active
- 2017-01-24 JP JP2017564244A patent/JP6716613B2/en active Active
- 2017-01-24 TW TW106102646A patent/TWI679936B/en active
- 2017-01-24 WO PCT/JP2017/002201 patent/WO2017130920A1/en active Application Filing
-
2020
- 2020-04-16 JP JP2020073310A patent/JP6905122B2/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1130018A (en) * | 1995-03-02 | 1996-09-04 | 住友化学工业株式会社 | Liquid absorbing core stick for heating and evapotranspiration |
| JPH0919252A (en) * | 1995-07-04 | 1997-01-21 | Dainippon Jochugiku Co Ltd | Liquid-sucking wick for aqueous insecticide and thermal evaporation insecticidal method using the wick |
| CN1184586A (en) * | 1996-11-12 | 1998-06-17 | 大日本除虫菊株式会社 | Long duration pesticide pellet, and method for heating the pellet and fumigating |
| CN1407852A (en) * | 2000-03-06 | 2003-04-02 | 富马基拉株式会社 | Fan type chemicals diffusing device |
| JP4878352B2 (en) * | 2008-03-26 | 2012-02-15 | 大日本除蟲菊株式会社 | Method of heat transpiration of aqueous deodorant composition |
| JP2012121825A (en) * | 2010-12-07 | 2012-06-28 | Dainippon Jochugiku Co Ltd | Insect pest control agent and inset pest control method using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6716613B2 (en) | 2020-07-01 |
| CN108601339A (en) | 2018-09-28 |
| WO2017130920A1 (en) | 2017-08-03 |
| JP6905122B2 (en) | 2021-07-21 |
| JPWO2017130920A1 (en) | 2018-11-15 |
| TW201725983A (en) | 2017-08-01 |
| JP2020120672A (en) | 2020-08-13 |
| TWI679936B (en) | 2019-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6965394B2 (en) | Pest control products and pest control methods | |
| JP6905122B2 (en) | Aqueous prescription drug solution heat evaporation core and its manufacturing method, and an aqueous prescription drug solution heat evaporation method using the aqueous prescription drug solution heat evaporation method. | |
| JP2020002173A (en) | Insect pest control product, and insect pest control method | |
| JP2023113861A (en) | Insecticidal efficacy enhancer, pest control method, and aqueous insecticide composition for thermal transpiration | |
| JP2023014145A (en) | Pest invasion obstructing product, and pest invasion obstructing method | |
| TWI657739B (en) | Aqueous insecticidal composition for heat-transpiration, and heat-transpiration method of the same | |
| JP2005095107A (en) | Heat-transpiring device | |
| JP4471590B2 (en) | Liquid heat transpiration insecticide composition and liquid heat transpiration insecticide method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190423 Address after: Japan Osaka Applicant after: DAINIHON JOCHUGIKU Co.,Ltd. Address before: Yamanashi Prefecture, Japan Applicant before: ORIENTAL SANGYO Co.,Ltd. Applicant before: DAINIHON JOCHUGIKU Co.,Ltd. |
|
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1262820 Country of ref document: HK |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |