CN112773921A - Air purifying agent composition - Google Patents
Air purifying agent composition Download PDFInfo
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- CN112773921A CN112773921A CN202110036155.0A CN202110036155A CN112773921A CN 112773921 A CN112773921 A CN 112773921A CN 202110036155 A CN202110036155 A CN 202110036155A CN 112773921 A CN112773921 A CN 112773921A
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- artemisiae argyi
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- 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
- A61L9/01—Deodorant compositions
- A61L9/013—Deodorant compositions containing animal or plant extracts, or vegetable material
-
- 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
- A61L9/01—Deodorant compositions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/44—Organic components
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- 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
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/20—Method-related aspects
- A61L2209/21—Use of chemical compounds for treating air or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
Abstract
The invention discloses an air purifying agent composition, which comprises the following raw materials in parts by weight: 10-30 parts of a folium artemisiae argyi and grapefruit mixed extract, 10-30 parts of a witch hazel extract, 10-30 parts of a lemon extract, 10-15 parts of a licorice extract, 0.5-2 parts of eupatorium volatile oil, 5-10 parts of tea yellow pigment, 0.5-2 parts of ligninase and 0.1-1 part of nano silver. The invention belongs to the technical field of air purification, and particularly relates to an air purifying agent composition which is prepared from theaflavin and a liquorice extract by adopting plant raw materials, is safe and harmless, has good stability and long effective time, and can be applied to indoor places, in-car places and other places for air purification.
Description
Technical Field
The invention belongs to the technical field of air purification, and particularly relates to an air purifying agent composition.
Background
With the gradual improvement of the living standard of people and the gradual reduction of the quality of air environment, the requirement of people on air purification is higher and higher. There are many air purifiers available on the market, and there are several types in general: adsorption type air purification, covering type odor removal products and decomposition type odor removal products. The adsorption type air purifying agent is used for removing pollutants in the air by utilizing the performances of physical adsorption, chemical adsorption, oxidation, catalytic oxidation, reduction and the like of substances such as activated carbon and the like. The covering type air purifying agent is characterized in that substances with peculiar smell are covered by using volatile substances with fragrance, so that an air purifying false image is caused to people. The decomposition type air purifying agent is a substance similar to TiO2 in the air purifying agent, can generate hydroxyl radicals and superoxide radicals with oxygen or water molecules under the irradiation of sunlight, and the hydroxyl radicals and superoxide radicals have strong oxidation-reduction capability, so that harmful substances in the air can be subjected to oxidative decomposition. Most of the existing air purifiers are prepared by mixing organic compounds such as aromatic compounds and some monoterpene compounds with essence, have certain toxic and side effects and are not safe.
Disclosure of Invention
In order to overcome the defects of the prior art, the air purifying agent composition is prepared from the tea yellow pigment and the liquorice extract by adopting plant raw materials, is safe and harmless, has good stability and long effective time, and can be applied to indoor places, in-car places and the like for air purification.
The technical scheme adopted by the invention is as follows: the air purifying agent composition comprises the following raw materials in parts by weight: 10-30 parts of a folium artemisiae argyi and grapefruit mixed extract, 10-30 parts of a witch hazel extract, 10-30 parts of a lemon extract, 10-15 parts of a licorice extract, 0.5-2 parts of eupatorium volatile oil, 5-10 parts of tea yellow pigment, 0.5-2 parts of ligninase and 0.1-1 part of nano silver.
Further, the air purifying agent composition preferably comprises the following raw materials in parts by weight: the material comprises the following raw materials in parts by weight: 15-25 parts of a mixed extract of folium artemisiae argyi and grapefruit, 15-25 parts of a witch hazel extract, 15-25 parts of a lemon extract, 11-13 parts of a licorice extract, 0.8-1.5 parts of eupatorium volatile oil, 6-9 parts of tea yellow pigment, 0.8-1.5 parts of ligninase and 0.2-0.8 part of nano silver.
Further, the optimal weight ratio of the raw materials of the air purifying agent composition is as follows: the material comprises the following raw materials in parts by weight: 20 parts of a folium artemisiae argyi and grapefruit mixed extract, 20 parts of a witch hazel extract, 20 parts of a lemon extract, 12 parts of a licorice extract, 1 part of eupatorium volatile oil, 8 parts of tea yellow pigment, 1 part of ligninase and 0.6 part of nano-silver.
Further, the extraction method of the folium artemisiae argyi and grapefruit mixed extract comprises the following steps: respectively cleaning folium artemisiae argyi and dried shaddock peel, chopping, uniformly mixing, heating and refluxing for three times for 2 hours each time by using water-ethanol as an extraction solvent, combining extraction solutions, discarding residues, concentrating the extraction solutions to recover ethanol, evaporating water, obtaining folium artemisiae argyi and shaddock extract powder by adopting a spray drying mode, crushing the folium artemisiae argyi and shaddock extract powder by a crusher, sieving by a 100-mesh and 120-mesh swing vibrating screen to obtain 100-mesh and 120-mesh powder, and mixing for 1 hour by a mixer.
Further, the weight ratio of the folium artemisiae argyi to the shaddock peel is 1: (2-3).
Further, the eupatorium volatile oil is obtained by a steam distillation extraction method.
Furthermore, the particle size of the nano silver is 1-10 nm.
After adopting the structure, the invention has the following beneficial effects: the air purifying agent composition is prepared from plant raw materials, is safe and harmless, has good stability and long effective time, and can be applied to indoor places, in-car places and other places for air purification.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
The air purifying agent composition comprises the following raw materials in parts by weight: 20 parts of a folium artemisiae argyi and grapefruit mixed extract, 20 parts of a witch hazel extract, 20 parts of a lemon extract, 12 parts of a licorice extract, 1 part of eupatorium volatile oil, 8 parts of tea yellow pigment, 1 part of ligninase and 0.6 part of nano-silver.
Folium Artemisiae Argyi and fructus Citri Grandis extract
The extraction method of the folium artemisiae argyi and grapefruit mixed extract comprises the following steps: respectively cleaning folium artemisiae argyi and dried shaddock peel, chopping, uniformly mixing, heating and refluxing for three times by taking water-ethanol as an extraction solvent, extracting for 2 hours each time, combining the extracting solution, discarding dregs of a decoction, concentrating the extracting solution to recover ethanol, evaporating water, obtaining folium artemisiae argyi and shaddock extract powder by adopting a spray drying mode, crushing the folium artemisiae argyi and shaddock extract powder by a crusher, sieving by a 100-mesh and 120-mesh swing vibrating screen to obtain 100-mesh and 120-mesh powder, and mixing for 1 hour by a mixer; wherein the weight ratio of the folium artemisiae argyi to the shaddock peel is 1: (2-3).
The folium artemisiae argyi extract contains a lot of components, the folium artemisiae argyi contains 0145-1100% of volatile oil, and 60 components such as 2-methylbutanol (2-methylbutanol), 2-hexenal (2-hexenol), tricyclic terpene (tricyclene) and alpha-thujene (alpha-thujene) are identified from the folium artemisiae argyi extract. 34 components are identified from volatile oil of wild folium artemisiae argyi produced in Laoshan in Shandong, wherein the higher content comprises limonene (limonene), alpha-thujone (alpha-thujone), alpha-phellandrene (alpha-phellandrene), citronellol (citronellol) and the like. And 32 components such as camphene (camphenehydate), 1,4-cineole (1,4-cineole), artemisone (artemisia ketone), pulegone (piperitone) and sabinene (winddrene), flavonoid component, eudesmane (eudesmane) component and triterpene component are separated from the volatile oil of the whole plant.
The folium artemisiae argyi extract contains various natural medicinal components, so that after the medicinal components are absorbed by a human body, the antiallergic capability of the body can be enhanced, the occurrence of various allergic diseases can be reduced, in addition, the folium artemisiae argyi extract also has a certain treatment effect on common skin diseases such as human allergic dermatitis, eczema, mange and the like, and the folium artemisiae argyi extract can be directly smeared on an affected part during treatment, so that the pain and the itching can be quickly relieved.
The antibacterial and antiviral property is also an important effect of the folium artemisiae argyi extract, as most medicinal components in the folium artemisiae argyi are reserved in the folium artemisiae argyi extract, the folium artemisiae argyi extract can not only kill various germs in a human body, but also inhibit viruses from breeding and propagating in the human body, and after people take the folium artemisiae argyi extract, the folium artemisiae argyi extract can prevent upper respiratory tract infection and can be used for adjuvant therapy of some viral diseases, so that the folium artemisiae argyi extract has great benefits for maintaining human health.
The folium artemisiae argyi extract contains some natural chemical component volatile oil, and also contains some flavonoid compounds or natural polysaccharides, so that the folium artemisiae argyi extract can promote the metabolism of a human body after being absorbed, can also accelerate the regeneration of immune cells of the human body, can prevent the damage of some chemical components to the immune system of the human body, is the important barrier of the human body in immunity, and can improve the self-disease resistance of the human body after the function of the folium artemisiae argyi extract is improved.
The folium artemisiae argyi extract can enter spleen channels and liver channels, has multiple effects of promoting qi circulation, relieving pain, warming middle-jiao, dispelling cold, stopping bleeding and the like, can be used for preventing and treating common diseases such as human rheumatic osteodynia, arthritis and the like at ordinary times, can also be used for treating bleeding diseases such as human traumatic bleeding, hematemesis, hemafecia and the like, and has particularly excellent treatment effect.
The fructus Citri Grandis extract contains abundant vitamins and minerals, and also contains multiple non-nutritional physiological active ingredients beneficial to human health, such as flavonoids, limonoids, essential oil, natural pigment, dietary fiber, naringin, etc., has antiinflammatory, analgesic, antiviral, antibacterial and aldose reductase inhibiting effects, and can be used in combination with folium Artemisiae Argyi and Glycyrrhrizae radix extract for purifying respiratory system.
Hamamelis mollis extract
The hamamelis extract contains kaempferol (kaempferol), quercetin (quercetin), astragalin (astragalin) and the like, has the effects of relieving, astringing, resisting bacteria and resisting aging, has obvious curative effects of astringing, controlling oil and sterilizing, can obviously reduce the content of malondialdehyde in tissues caused by strong ultraviolet radiation, and can prevent the skin from being exposed to the inflammation caused by the ultraviolet radiation. Reduce the damage of free radicals caused by ultraviolet irradiation. Has antiaging effect.
Lemon extract
The fresh lemon fruit can be extracted by cold grinding method, and the peel is extracted by steam distillation method. The cold grinding method has the oil yield of 0.2-0.5 percent (calculated by whole fruit) and the distillation method has the oil yield of 0.6 percent (calculated by peel), the lemon extract is extracted from the fruit of Citrus aurantium or Citrus depressa in Rutaceae, the lemon extract has the fragrance of fresh Citrus aurantium fruit, and the main components comprise limonene (up to 90 percent), citral, octanal, nonanal, decanal, dodecanal, pinene, camphene, linalool, linalyl acetate, geranyl acetate, neryl acetate and the like, and the beverage has the effects of promoting the production of body fluid, quenching thirst, dispelling summer heat and preventing miscarriage. Dry mouth and sore throat, gastric distention, hypertension, myocardial infarction and poor appetite.
Glycyrrhiza extract
The licorice extract is a component extracted from licorice and having medicinal value. The Glycyrrhrizae radix extract generally comprises glycyrrhizin, glycyrrhizic acid, liquiritin, glycyrrhizin flavonoid, semaphorin, formononetin, quercetin, etc. As a yellow to brown-yellow powder. Has the effects of invigorating spleen and replenishing qi, clearing away heat and toxic materials, eliminating phlegm and relieving cough, relieving spasm and pain, and harmonizing the medicines. Can be used for treating weakness of spleen and stomach, asthenia, palpitation, short breath, cough, excessive phlegm, abdominal distention, and spasm and pain of limbs.
Eupatorium volatile oil
The Eupatorium volatile oil is obtained by steam distillation, and contains p-cymene (p-cymene), aurantiol acetate (neryl acetate), thymol methyl ether (methyl hexyl ether), taraxasterol (taraxasterol), taraxasterol acetate (taraxasteryl acetate), taraxasterol palmitate (taraxasteryl palmi-tate), beta-balsamic alcohol (beta-amyrin palmitate), stigmasterol (stigmasterol), beta-sitosterol (beta-sitosterol), octacosanol (octacosanol), palmitic acid (palmitic acid), fumaric acid (fumaric acid), succinic acid (suberic acid), mannitol (manitol), Nindoline (lindlofenesin), supine campestrine (lindlozolidin), etc., and has the effect of inhibiting the convection of viruses of Eupatorium.
Tea yellow pigment
The preparation method of the tea yellow pigment comprises the following steps: extracting the sample with hot water, filtering the extract, concentrating, freeze drying, dissolving the obtained water extract with methanol and water, extracting with chloroform, and removing caffeine and other impurities. Concentrating the water phase under reduced pressure, removing methanol and chloroform, repeatedly extracting with ethyl acetate, dehydrating the extract with magnesium sulfate, and distilling to dry to obtain theaflavin crude extract.
The tea yellow pigment contains polyphenols, catechin as main ingredient, and also contains amino acids, vitamin C, vitamin E, provitamin A, flavone and flavonol. Theaflavin is the main component of tea pigment, and has 12 components, of which theaflavin, theaflavin-3-gallate, theaflavin-3, 3 '-digallate and theaflavin-3' -gallate are the 4 most predominant theaflavins.
The tea yellow pigment has anticancer, antioxidant, antiinflammatory, antiviral, cardiovascular disease resisting and deodorant effects.
Lignin enzyme
The ligninase has strong degradation capability on lignin and various organic matters, especially artificially synthesized organic pollutants, and has the characteristics of high spectrum, high efficiency, low consumption, high applicability and the like.
Nano silver
Nanometer (nm) is the smallest unit of measure at present, following micron, 1 nm being a millionth of a millimeter, i.e. a nanometer, i.e. a billionth of a meter. The nano silver is prepared by utilizing the leading edge nano technology to carry out nano treatment on the silver, the nano technology is developed, the sterilization capability of the silver in a nano state is greatly improved, few nano silver can generate strong sterilization effect, 650 kinds of bacteria can be killed within a few minutes, broad-spectrum sterilization is realized, no drug resistance exists, the healing of wounds, the growth of cells and the repair of damaged cells can be promoted, no toxic reaction exists, no stimulation reaction is found on skin, the wide prospect is opened up for the wide application of the nano silver for antibiosis, the nano silver is a latest generation of natural antibacterial agent, and the nano silver has the characteristics of broad-spectrum antibiosis, strong sterilization, strong permeability, repair regeneration and lasting antibiosis, wherein the particle size of the nano silver is 1-10 nm.
Example 2
The air purifying agent composition comprises the following raw materials in parts by weight: 24 parts of a mixed extract of folium artemisiae argyi and grapefruit, 23 parts of a witch hazel extract, 22 parts of a lemon extract, 14 parts of a licorice extract, 1.6 parts of eupatorium volatile oil, 7 parts of tea yellow pigment, 1.4 parts of ligninase and 0.7 part of nano-silver.
Example 3
The air purifying agent composition comprises the following raw materials in parts by weight: 19 parts of a folium artemisiae argyi and grapefruit mixed extract, 19 parts of a witch hazel extract, 19 parts of a lemon extract, 11 parts of a licorice extract, 1 part of eupatorium volatile oil, 6 parts of tea yellow pigment, 1.6 parts of ligninase and 0.8 part of nano-silver.
Example 4
The air purifying agent composition comprises the following raw materials in parts by weight: 21 parts of a folium artemisiae argyi and grapefruit mixed extract, 21 parts of a witch hazel extract, 21 parts of a lemon extract, 12 parts of a licorice extract, 1.5 parts of eupatorium volatile oil, 8 parts of tea yellow pigment, 1.5 parts of ligninase and 0.9 part of nano-silver.
Example 5
The air purifying agent composition comprises the following raw materials in parts by weight: 27 parts of a mixed extract of folium artemisiae argyi and grapefruit, 27 parts of a witch hazel extract, 26 parts of a lemon extract, 10 parts of a licorice extract, 1.2 parts of eupatorium volatile oil, 5 parts of tea yellow, 1.8 parts of ligninase and 0.6 part of nano-silver.
Test method
Air purifier composition: example 1 (any of examples 1 to 5) was 15 wt%, 1, 2-propanediol was 25 wt%, palmitic acid was 15 wt%, stearic acid was 5 wt%, sodium hydroxide was 5 wt%, acetate vitamin E was 0.2 wt%, and water was the rest.
Preparing an air purifying agent: mixing 1, 2-propylene glycol, palmitic acid, stearic acid, sodium hydroxide, acetate vitamin E, water and the mixture of the embodiment 1 (any embodiment of the embodiments 1 to 5) according to the proportion at 45 ℃, stirring for 4.5h, and evaporating to dryness to obtain the paste air purifying agent.
The air purifying agent prepared above was subjected to an air purification test.
1. Duration of effectiveness test:
1.1 fresh air purifying agent
In a test chamber sealed by 1m3, a certain volume of chemically pure formaldehyde (or benzene or ammonia) is injected, a fan in the chamber is started, and the gas concentration in the test chamber is sampled as the initial concentration immediately after 1 hour. In a test chamber sealed at 1m3, the air-purifying agent just prepared was placed in the chamber, and the gas concentration in the test chamber was sampled immediately after 72 hours to calculate the removal rate. The removal rate was (initial concentration-sample concentration) × 100/initial concentration, and the test results are shown in table 1.
1.2 air purifying agent for 3 months
The specific experimental steps are the same as 1.1, except that the air purifying agent is placed for two months and then used for the same test, and the test results are shown in table 1.
Wherein, TVOC is total volatile organic compounds, all indoor organic gaseous substances.
1.3 stability test
The air purifying agent was left standing in a transparent sealed container for 12 months, and the time at which the precipitation occurred was counted. No precipitation appeared and is marked as A, precipitation appeared in 9-11 months and is marked as B, precipitation appeared in 4-8 months and is marked as C, precipitation appeared in 1-3 months and is marked as D, precipitation appeared in less than 1 month and is marked as E, and the test results are shown in Table 1.
TABLE 1
As can be seen from Table 1, the air purifying agent composition provided by the invention can remarkably improve the air purifying effect by adding the mixed extract of folium artemisiae argyi and grapefruit, the hamamelis extract and the licorice extract and matching with the ligninase and the nano-silver, and meanwhile, the stability of the air purifying agent composition is higher through the tea yellow pigment and the licorice extract.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. An air freshener composition characterized by: the material comprises the following raw materials in parts by weight: 10-30 parts of a folium artemisiae argyi and grapefruit mixed extract, 10-30 parts of a witch hazel extract, 10-30 parts of a lemon extract, 10-15 parts of a licorice extract, 0.5-2 parts of eupatorium volatile oil, 5-10 parts of tea yellow pigment, 0.5-2 parts of ligninase and 0.1-1 part of nano silver.
2. The air freshener composition according to claim 1, wherein: the material comprises the following raw materials in parts by weight: 15-25 parts of a mixed extract of folium artemisiae argyi and grapefruit, 15-25 parts of a witch hazel extract, 15-25 parts of a lemon extract, 11-13 parts of a licorice extract, 0.8-1.5 parts of eupatorium volatile oil, 6-9 parts of tea yellow pigment, 0.8-1.5 parts of ligninase and 0.2-0.8 part of nano silver.
3. The air freshener composition according to claim 1, wherein: the material comprises the following raw materials in parts by weight: 20 parts of a folium artemisiae argyi and grapefruit mixed extract, 20 parts of a witch hazel extract, 20 parts of a lemon extract, 12 parts of a licorice extract, 1 part of eupatorium volatile oil, 8 parts of tea yellow pigment, 1 part of ligninase and 0.6 part of nano-silver.
4. The air freshener composition according to claim 1, wherein: the extraction method of the folium artemisiae argyi and grapefruit mixed extract comprises the following steps: respectively cleaning folium artemisiae argyi and dried shaddock peel, chopping, uniformly mixing, heating and refluxing for three times for 2 hours each time by using water-ethanol as an extraction solvent, combining extraction solutions, discarding residues, concentrating the extraction solutions to recover ethanol, evaporating water, obtaining folium artemisiae argyi and shaddock extract powder by adopting a spray drying mode, crushing the folium artemisiae argyi and shaddock extract powder by a crusher, sieving by a 100-mesh and 120-mesh swing vibrating screen to obtain 100-mesh and 120-mesh powder, and mixing for 1 hour by a mixer.
5. The air freshener composition according to claim 4, wherein: the weight ratio of the folium artemisiae argyi to the shaddock peel is 1: (2-3).
6. The air freshener composition according to claim 1, wherein: the herba Eupatorii volatile oil is obtained by steam distillation extraction method.
7. The air freshener composition according to claim 1, wherein: the grain diameter of the nano silver is 1-10 nm.
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Cited By (1)
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| CN113385003A (en) * | 2021-06-16 | 2021-09-14 | 杭州华好生物科技有限公司 | TVOC deodorant |
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Application publication date: 20210511 |