CN103004897A - Efficient biological bactericide - Google Patents
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- CN103004897A CN103004897A CN 201110278998 CN201110278998A CN103004897A CN 103004897 A CN103004897 A CN 103004897A CN 201110278998 CN201110278998 CN 201110278998 CN 201110278998 A CN201110278998 A CN 201110278998A CN 103004897 A CN103004897 A CN 103004897A
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- 230000000844 anti-bacterial effect Effects 0.000 title abstract description 17
- 239000003899 bactericide agent Substances 0.000 title abstract description 12
- 239000000686 essence Substances 0.000 claims description 16
- 241000218202 Coptis Species 0.000 claims description 10
- 235000002991 Coptis groenlandica Nutrition 0.000 claims description 10
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 10
- 229920002101 Chitin Polymers 0.000 claims description 9
- 102000003844 DNA helicases Human genes 0.000 claims description 9
- 108090000133 DNA helicases Proteins 0.000 claims description 9
- 229920002413 Polyhexanide Polymers 0.000 claims description 9
- 239000002351 wastewater Substances 0.000 claims description 7
- 230000002070 germicidal effect Effects 0.000 claims description 5
- 241000411851 herbal medicine Species 0.000 claims description 5
- 239000013060 biological fluid Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000008367 deionised water Substances 0.000 claims description 2
- 229910021641 deionized water Inorganic materials 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 16
- 230000001954 sterilising effect Effects 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 7
- 244000052616 bacterial pathogen Species 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000002147 killing effect Effects 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 2
- 239000003124 biologic agent Substances 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 231100000956 nontoxicity Toxicity 0.000 abstract 1
- 230000002688 persistence Effects 0.000 abstract 1
- 230000000638 stimulation Effects 0.000 abstract 1
- 241000894006 Bacteria Species 0.000 description 6
- 244000052769 pathogen Species 0.000 description 6
- 230000001717 pathogenic effect Effects 0.000 description 6
- 206010011409 Cross infection Diseases 0.000 description 4
- 241000700605 Viruses Species 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000001580 bacterial effect Effects 0.000 description 3
- 238000009395 breeding Methods 0.000 description 3
- 230000001488 breeding effect Effects 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000034994 death Effects 0.000 description 3
- 231100000517 death Toxicity 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 231100000252 nontoxic Toxicity 0.000 description 3
- 230000003000 nontoxic effect Effects 0.000 description 3
- FRXSZNDVFUDTIR-UHFFFAOYSA-N 6-methoxy-1,2,3,4-tetrahydroquinoline Chemical compound N1CCCC2=CC(OC)=CC=C21 FRXSZNDVFUDTIR-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 2
- 125000001165 hydrophobic group Chemical group 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 244000000010 microbial pathogen Species 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 102000009027 Albumins Human genes 0.000 description 1
- 108010088751 Albumins Proteins 0.000 description 1
- 241000193830 Bacillus <bacterium> Species 0.000 description 1
- 230000004543 DNA replication Effects 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 241000282412 Homo Species 0.000 description 1
- 102000003960 Ligases Human genes 0.000 description 1
- 108090000364 Ligases Proteins 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
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- 230000000843 anti-fungal effect Effects 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 229940121375 antifungal agent Drugs 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000000680 avirulence Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- 230000023852 carbohydrate metabolic process Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 210000003855 cell nucleus Anatomy 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- -1 iodine, aldehyde Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 108020004999 messenger RNA Proteins 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000957 no side effect Toxicity 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
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- 229920000642 polymer Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- 230000000644 propagated effect Effects 0.000 description 1
- 230000010076 replication Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- 210000001082 somatic cell Anatomy 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 230000033041 viral attachment to host cell Effects 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention relates to an efficient biological bactericide, which is mainly provided for general-purpose sterilization and disinfection of medical institution air, object surfaces, and skin, and can be widely used for disinfection in homes, hotels, shopping malls, schools and other public places. The efficient biological bactericide has the following characteristics that: the efficient biological bactericide has a significant disinfection and sterilization effect, and provides significant killing effects for common pathogenic bacteria in hospitals; a use rang is wide, and the efficient biological bactericide is suitable for skin sterilization and disinfection of all areas, various environmental sites and various people; the efficient biological bactericide has characteristics of no toxicity, no stimulation, no corrosion, no harm on human body, stable chemical property, and strong sterilization persistence, and can be filled into a small bottle to be carried so as to easy wash; and the efficient biological bactericide is a biological agent and further has a green environmental protection characteristic.
Description
Technical field
The present invention relates to a kind of efficient biologic germicide, its effective sterilization component is that polyhexamethylene guanide, double-chain quaternary ammonium salt, N-trimethyl chitin, dna unwinding enzyme and Chinese herbal medicine coptis root, bitter leaves root elite liquid phase are composite, the efficient biologic germicide that is prepared from through special process.Be mainly used in the general sterilizing of medical institutions' air, body surface, skin, but also extensive use aspect the sterilization of the public places such as family, hotel, market, school.Along with people's growth in the living standard, the development of science and technology, people also have higher requirement to environmental sanitary quality when enjoying material life.The various pathogenic bacteria that distributing in people's the living environment, thus the health of harm humans propagated by approach such as air, body surface, contacts.In medical institutions, be that a patient assembles, the pathogenic microorganisms breeding is local rapidly especially.The contact that the contact of pathogenic bacteria by air, body surface, medical personnel's hand, patient use Public Goods and fast, infect widely.Therefore, the sterilization of living environment is paid much attention to by people.In order effectively to control the propagation of pathogenic bacteria, the sanitary cleaning of living environment, the health of people's health, a kind of bactericide efficient, nontoxic, non-stimulated, that have no side effect, conveniently use without burn into is the eager demands of people.
Background technology
In recent years, the outburst of the acute epidemic situations such as SARS and first type HINI makes people to the sterilization of living environment darker understanding arranged; Cause the rising of the direct death straight line of patient along with hospital infection, the sterilization of hospital has caused people's fear.Statistics according to Center for Disease Control and Prevention, the U.S. has 2～300 ten thousand patient that hospital infection occurs every year, directly cause annual 88000 routine deaths, be used for the treatment of hospital infection and annual hospital need spend 4,500,000,000, effectively controlling hospital infection has become very urgent and important problem.Therefore, started the again peak of using the disinfection product.The kind of existing bactericide is a lot of on the market, and bactericidal property differs, and active ingredient mostly is chlorine, iodine, aldehyde, alcohol, acids etc.Wherein use most often chlorine-containing disinfectant, the favor that it is wide because of fungicidal spectrum, effect is rapid, bactericidal effect reliably is subject to people, but in use character is unstable, be corrosive, available chlorine is easily lost, on fabric discoloration arranged, be subject to the machine thing, the shortcoming of pH impact, brought inconvenience to the user.In hospital, air, body surface can adopt ultraviolet ray, ozone to carry out sterilization, but can only be in the situation that unmanned, airtight carrying out not only use inconvenience, and secondary pollution can damage to patient, old young colony.Therefore, people wish always a kind of easy to use, to the birth of bactericide of human body without injury, noresidue.The object of the present invention is to provide a kind of efficient, nontoxic, easy to use, all spendable general-purpose highly effective biological bactericide in each place.
Summary of the invention
Main points of the present invention are to select biological prescription, with the synergy that Chinese herbal medicine elite liquid phase is composite various pathogenic bacteria are carried out quick killing action, effectively kill and control the propagation of pathogenic microorganisms; And contained active ingredient does not have toxicity, is breathed absorption by people in air, can play the effect that improves resistance.
The prescription following (component and percentage by weight % thereof) that the present invention selects: polyhexamethylene guanide 8.0-10.0, double-chain quaternary ammonium salt 6.0-8.0, N-trimethyl chitin 3.0-5.0, dna unwinding enzyme 6.0-7.0, coptis root Essence 4.0-5.0, bitter leaves root Essence 3.0-4.0, purify waste water to 100.
Polyhexamethylene guanide becomes electropositive, therefore be easy to usually be electronegative each bacterioid, viral absorption, thereby the splitting function that has suppressed bacterial virus, make bacterial virus lose fecundity and add that the thin polymer film that forms with other material polymerizations has stopped up the respiration channel of microorganism, is choked to death rapidly microorganism.Have has a broad antifungal spectrum, all effective to Gram-positive and negative bacterium and mould, have efficient, to skin nonirritant, avirulence, non-corrosive characteristics.
Double-chain quaternary ammonium salt adopts a connection base that two traditional quaternary ammonium salt molecules are linked up, so that each compound molecule contains two hydrophilic groups and two hydrophobic groups, and the N ion of two positive charges.Have larger surface-active, owing in the molecule two positively charged N being arranged, more be conducive to biocide molecules in the absorption of bacterium surface, thereby change the permeability of cell wall, thalline is broken; After bactericide is adsorbed onto the thalline surface, be conducive to lipoid layer and albumin layer that hydrophobic group and hydrophilic group go deep into respectively somatic cells, cause enzyme to lose activity; In addition, introduce the atoms such as s, N in chain bridge, synergy makes the bi-quaternary ammonium salt compounds have stronger sterilizing ability.Organic diammonium compound and traditional mono-quaternaries Compound Phase ratio have stronger anti-microbial property and lower toxicity.
The N-trimethyl chitin is the derivative of shitosan, interacts with the electronegative side chain of the large biological molecule of pathogen cell surface, forms polymer, can affect the growth of pathogen and then inhibition pathogen; Also can directly enter the cell nucleus of pathogen, what be combined mRNA by affecting pathogen and protein with DNA synthesizes to suppress its breeding.
Dna unwinding enzyme acts on hydrogen bond between two dna single chains, accelerates the dna double chain and becomes two independent chains, and the dna replication dna of bacterium does not but have enough ligases to copy, and affects the normal replication of DNA of bacteria, and the anti-bacteria breeding loses activity.
The pure Chinese herbal medicine Essence that extracts from coptis root, bitter leaves root all has broad-spectrum antibacterial action, various bacteria, tubercle bacillus, virus, fungi, protozoon etc. is had suppress or killing action.Coptis root can destroy bacterial structure, anti-bacteria glycometabolism, suppress the synthetic of nucleic acid, protein, thus kill bacteria.The trace elements such as several amino acids, vitamin and zinc, manganese, rubidium that contain needed by human in the bitter leaves to not injury of human body, the bitter leaves Essence of trace is breathed absorption by people in air after, have the effect that improves body immunity.
The preparation method of product of the present invention is:
(1) by proportioning polyhexamethylene guanide and double-chain quaternary ammonium salt are added in the aqueous solution, stir, form even mixed liquor;
(2) the N-trimethyl chitin is dissolved in proportion purifies waste water, mix and add in the mentioned solution;
(3) add dna unwinding enzyme by proportioning, deionized water adds to 100, stirs to make biological fluids;
(4) respectively coptis root, bitter leaves are obtained Essence through cleaning, dry, pulverize, extracting;
(5) two kinds of Chinese herbal medicine Essences are composite in proportion, join in the biological fluids, mix;
(6) leave standstill, packing, warehouse-in.
The present invention has the following advantages: (1) sterilization effect is remarkable, and is particularly remarkable to killing of common pathogen in the hospital; (2) scope of application is wide, is suitable for the disinfection of every field, various environment place and various crowds' skin; (3) nontoxic, non-stimulated, non-corrosiveness, harmless; (4) this product chemical property is very stable, and the sterilization continuation is strong; (5) can fill with bottle and carry, be convenient to flushing.(6) biologic product, environmental protection.
Embodiment
The present invention is described in further detail below in conjunction with embodiment:
Be configured according to following table institute column data (percentage by weight %) and affiliated step thereof:
Prescription one: polyhexamethylene guanide 8.0-10.0, double-chain quaternary ammonium salt 6.0-8.0, N-trimethyl chitin 3.0-5.0, dna unwinding enzyme 6.0-7.0, coptis root Essence 4.0-5.0, bitter leaves root Essence 3.0-4.0, purify waste water to 100.
Prescription two:
Polyhexamethylene guanide 8.0-9.0, double-chain quaternary ammonium salt 6.0-7.0, N-trimethyl chitin 3.0-4.0, dna unwinding enzyme 6.0-6.5, coptis root Essence 4.0-4.5, bitter leaves root Essence 3.0-3.5, purify waste water to 100.
Prescription three:
Polyhexamethylene guanide 9.0-10.0, double-chain quaternary ammonium salt 7.0-8.0, N-trimethyl chitin 4.0-5.0, dna unwinding enzyme 6.5-7.0, coptis root Essence 4.5-5.0, bitter leaves root Essence 3.5-4.0, purify waste water to 100.
Claims (2)
1. the present invention relates to a kind of efficient biologic germicide, it is characterized in that having following prescription (component and percentage by weight % thereof): polyhexamethylene guanide 8.0-10.0; Double-chain quaternary ammonium salt 6.0-8.0; N-trimethyl chitin 3.0-5.0; Dna unwinding enzyme 6.0-7.0; Coptis root Essence 4.0-5.0; Bitter leaves root Essence 3.0-4.0; Purify waste water to 100.
2. the preparation method of the described efficient biologic germicide of claim 1 is characterized in that having following steps:
(1) by proportioning polyhexamethylene guanide and double-chain quaternary ammonium salt are added in the aqueous solution, stir, form even mixed liquor;
(2) the N-trimethyl chitin is dissolved in proportion purifies waste water, mix and add in the mentioned solution;
(3) add dna unwinding enzyme by proportioning, deionized water adds to 100, stirs to make biological fluids;
(4) respectively coptis root, bitter leaves are obtained Essence through cleaning, dry, pulverize, extracting;
(5) two kinds of Chinese herbal medicine Essences are composite in proportion, join in the biological fluids, mix;
(6) leave standstill, packing, warehouse-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110278998 CN103004897A (en) | 2011-09-20 | 2011-09-20 | Efficient biological bactericide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110278998 CN103004897A (en) | 2011-09-20 | 2011-09-20 | Efficient biological bactericide |
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| Publication Number | Publication Date |
|---|---|
| CN103004897A true CN103004897A (en) | 2013-04-03 |
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| CN 201110278998 Pending CN103004897A (en) | 2011-09-20 | 2011-09-20 | Efficient biological bactericide |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103467623A (en) * | 2013-09-24 | 2013-12-25 | 盐城工学院 | Chitosan derivative containing quaternary ammonium nitrogen atoms and guanidyl as well as preparation method and application thereof |
| CN104798823A (en) * | 2015-04-30 | 2015-07-29 | 山东大学齐鲁医院 | Bactericide for clinical laboratory |
| CN104886165A (en) * | 2015-07-01 | 2015-09-09 | 荆永正 | Compound air disinfectant and preparation method thereof |
| CN104888204A (en) * | 2015-07-01 | 2015-09-09 | 荆永正 | Composite skin and mucosa disinfectant and preparation method thereof |
| CN104904753A (en) * | 2015-07-01 | 2015-09-16 | 荆永正 | Efficient disinfectant and preparation method thereof |
| CN106035390A (en) * | 2016-06-15 | 2016-10-26 | 寻航 | Disinfectant for radiotherapy department |
| CN106035389A (en) * | 2016-06-15 | 2016-10-26 | 寻航 | Sterilizing agent for radiation room instruments and preparation process thereof |
| CN106165700A (en) * | 2016-07-04 | 2016-11-30 | 安徽省曾氏保洁品有限公司 | A kind of plastic wire hair is brushed lightly with antibacterial and its preparation method and application |
| CN107549205A (en) * | 2017-08-23 | 2018-01-09 | 苏州安特实业有限公司 | A kind of composite sterilization agent and preparation method thereof |
| CN111248230A (en) * | 2020-03-04 | 2020-06-09 | 韩建华 | Antibacterial liquid, antibacterial wet tissue and antibacterial sanitary towel |
-
2011
- 2011-09-20 CN CN 201110278998 patent/CN103004897A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103467623A (en) * | 2013-09-24 | 2013-12-25 | 盐城工学院 | Chitosan derivative containing quaternary ammonium nitrogen atoms and guanidyl as well as preparation method and application thereof |
| CN103467623B (en) * | 2013-09-24 | 2016-02-10 | 盐城工学院 | A kind of chitosan derivatives containing quaternary nitrogen atoms and guanidine radicals and its preparation method and application |
| CN104798823A (en) * | 2015-04-30 | 2015-07-29 | 山东大学齐鲁医院 | Bactericide for clinical laboratory |
| CN104886165A (en) * | 2015-07-01 | 2015-09-09 | 荆永正 | Compound air disinfectant and preparation method thereof |
| CN104888204A (en) * | 2015-07-01 | 2015-09-09 | 荆永正 | Composite skin and mucosa disinfectant and preparation method thereof |
| CN104904753A (en) * | 2015-07-01 | 2015-09-16 | 荆永正 | Efficient disinfectant and preparation method thereof |
| CN106035390A (en) * | 2016-06-15 | 2016-10-26 | 寻航 | Disinfectant for radiotherapy department |
| CN106035389A (en) * | 2016-06-15 | 2016-10-26 | 寻航 | Sterilizing agent for radiation room instruments and preparation process thereof |
| CN106165700A (en) * | 2016-07-04 | 2016-11-30 | 安徽省曾氏保洁品有限公司 | A kind of plastic wire hair is brushed lightly with antibacterial and its preparation method and application |
| CN107549205A (en) * | 2017-08-23 | 2018-01-09 | 苏州安特实业有限公司 | A kind of composite sterilization agent and preparation method thereof |
| CN111248230A (en) * | 2020-03-04 | 2020-06-09 | 韩建华 | Antibacterial liquid, antibacterial wet tissue and antibacterial sanitary towel |
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Application publication date: 20130403 |