KR20230103411A - a germicide of an electric vacuum cleaner contained an air freshener - Google Patents

Abstract

The present invention relates to a disinfectant used by being put into a dust collection chamber of a vacuum cleaner, and in particular, the disinfectant is formed in a granular form so that it is easy to insert the disinfectant into the vacuum cleaner and emits a fragrance as well as deodorizes and sterilizes the dust collection chamber. The present invention relates to a disinfectant for a vacuum cleaner containing an air freshener configured to suppress generation of internal odor and eradicate bacteria.
The present invention is to remove odors and bacteria generated from vacuum cleaners,
By constituting a sterilant formed in granular form with a particle size of 3 to 8 mm, a coating layer composed of copper powder is formed on the outer surface of the sterilant, and the sterilant is injected into the dust collection room by the suction force of the vacuum cleaner.

Description

Sterilizer for a vacuum cleaner containing an air freshener {a germicide of an electric vacuum cleaner contained an air freshener}

The present invention relates to a disinfectant used by putting it into a dust collection chamber of a vacuum cleaner, and in particular, the disinfectant is formed in a granular form so that it is easy to insert into the vacuum cleaner, and the fragrance is emitted as well as deodorizing and sterilizing functions in the dust collection chamber. The present invention relates to a disinfectant for a vacuum cleaner containing an air freshener configured to suppress generation of internal odor and eradicate bacteria.

In general, vacuum cleaners used at home have been used in such a way that foreign substances such as various dusts are collected in a dust collection room by the suction power of air, and when a certain amount of foreign substances are collected in the dust collection room, they are discharged.

Such a conventional vacuum cleaner has a structure in which external air is sucked into the dust collection room and then discharged to the outside through the dust collection room. There was a chronic problem that was emitted as it was.

In order to suppress the above-mentioned conventional odor and bacteria, there is a method of applying a gaseous or liquid air freshener or disinfectant inside the dust collection room. It did not last and had only a temporary effect.

In particular, efforts have been made to reduce odors generated by vacuum cleaners by using liquid air fresheners. In addition to being unable to sterilize bacteria, it is difficult to continuously emit fragrance because the fragrance is easily emitted.

Recently, in order to minimize the above-mentioned problems, fragrances containing gold nanoparticles or silver nanoparticles in which metals such as gold and silver are made into nanoparticles have been proposed. Fragrances including the metal nanoparticles are known to have antibacterial properties and are known to act as deodorants. In other words, existing air fresheners do not fundamentally remove bad odors, but emit good scents to temporarily prevent bad smells, so bacteria and germ particles that cause odors remain in the air, while metal nanoparticles The included air freshener has an antibacterial function and includes a deodorizing function that removes even the source of the odor.

However, since the fragrance containing these metal nanoparticles is composed of a liquid or powder form, it is difficult to insert into the vacuum cleaner and the effect does not last.

That is, the fragrance in the liquid form is not only cumbersome to be directly injected after separating the dust collection chamber of the vacuum cleaner, but also has a problem in that the fragrance and sterilization functions do not last long because it is easily vaporized and disappears.

In addition, the air freshener in the form of powder has the convenience of being injected into the dust collection room through the inlet of the vacuum cleaner, but since the powder composed of fine particles is adsorbed to the sieve installed inside the vacuum cleaner, the sieve must be frequently replaced. had the hassle of

In particular, the fragrance and sterilizing power contained in the air freshener are easily dissipated by the air pressure flowing into the dust collection room from the inlet side of the vacuum cleaner, and the fragrance is not evenly distributed inside the dust collection room and agglomeration occurs, so the fragrance is eventually released. It caused the deterioration of the sterilization function.

The present invention has been researched and developed to solve the above-mentioned conventional problems, and it is possible to maintain a hygienic indoor space by injecting a disinfectant into the dust collection room of a vacuum cleaner to suppress the generation of odor and at the same time sterilize various bacteria and germs. However, there are challenges that need to be addressed.

Another problem to be solved by the present invention is to configure the fragrance in the form of granules, so that it can be easily put into the internal dust collection room by the suction power of the vacuum machine, and the contact area is secured with only a small amount of fragrance, so that fragrance divergence and It is to ensure that the sterilization action is sufficiently performed.

Another problem to be solved by the present invention is to provide a higher sterilization effect by coating the aromatic agent with copper powder.

The present invention is to remove odors and bacteria generated from vacuum cleaners,

By constituting a sterilant formed in granular form with a particle size of 3 to 8 mm, a coating layer composed of copper powder is formed on the outer surface of the sterilant, and the sterilant is injected into the dust collection room by the suction power of the vacuum cleaner.

In addition, the disinfectant of the present invention is composed of 60-50% of EVA particles, 30-40% of ethanol, 0.7-1.2% of copper powder, and 5-15% of oil fragrance as a total weight ratio.

In constituting the sterilizer, the present invention has an effect that it can be easily introduced into the dust collection chamber through the inlet of the vacuum cleaner by forming the external shape of the sterilant into round and small granules in the form of granules of a certain size.

In addition, since the bactericide is impregnated with the fragrance in the granular base, not only has the effect of continuing the fragrance for a long time, but also has the effect of efficiently dissipating the fragrance because the contact area with the outside per unit area is wide. Since the grains of the fragrance are activated by the suction force of the air flowing into the dust collection room, there is an effect of further promoting the emission of fragrance.

The present invention forms a copper coating layer on the outer surface of the disinfectant to sterilize the inside of the dust collection room by the sterilizing power of copper, which is highly effective, and thus has an effect of maintaining a hygienic environment.

The configuration of the present invention and the actions and effects thereof are described in detail by examples and the like as follows.

The present invention includes a first step of mixing and impregnating EVA particles composed of Ethylene Vinyl Acetate, ethanol, copper powder, and oil fragrance by a centrifugal actuator; It is manufactured in the second process of forming a coating layer on the EVA particles that have gone through the first process.

In the first step, the composition is composed of 60-50% of EVA particles, 30-40% of ethanol, 0.7-1.2% of copper powder, 5-15% of oil fragrance, and 0.8-1.0% of additives by weight, and then the mixture is put into a centrifugally operated mixer. While stirring for 10 to 12 hours at a temperature of 50 to 60 ° C, the soft EVA particles are impregnated with oil flavoring.

The EVA particles are preferably composed of soft ethylene vinyl acetate having a vinyl acetate content of 20 to 30%, so that the EVA particles are sufficiently impregnated with oil flavoring and copper powder.

In addition, the size of EVA particles is not only easy to flow into the vacuum cleaner's dust collection room in a commercialized state, but also plays an important role in improving fragrance emission and sterilization power. Since the unit area to be impregnated is reduced, fragrance emission and sterilization are lowered, and if it exceeds 8mm, it is difficult for the oil fragrance impregnated in the center of the EVA particle to emit fragrance to the outside, so 3 to 8mm is preferable.

In the manufacturing method of these EVA particles, after extruding the EVA resin into a cylindrical shape with a diameter of 3 to 8 mm in an extrusion device, it can be cut into 3 to 8 mm in size to form a circular or oval particle, or extruded Afterwards, the cut irregularly shaped EVA particles may be ground with a barrel grinder to form spherical particles having a predetermined size or may be formed by injection molding into a desired shape. The EVA particles of the present invention can be configured in various shapes, but the shape of a grain of rice formed in a curved shape is preferable.

In addition, the EVA particles of the present invention may be configured in a form having transparent physical properties, which are the properties of raw materials, and can be colored using a masterbatch during extrusion or expressed in various colors through a separate coloring process in a vacuum state. The color may be expressed by the oil fragrance.

When the weight ratio of the copper powder to the total weight is less than 0.7%, the highly effective antibacterial and bactericidal action is insufficient. It is preferable to

In addition, the copper powder forms the particles in a powder state of 400 to 550 mesh, and when the mesh is less than 400, the working conditions for impregnating or coating the EVA particles are difficult, and when the mesh exceeds 550 mesh, the copper powder is processed into fine particles. A process for doing so is added, which increases the manufacturing cost.

Copper, a component of this copper powder, is not only non-toxic to the human body but also has a strong antibacterial action, so it is widely used as a method of sterilizing microorganisms. The effect of eradicating disease-causing bacteria in a short period of time has been widely proven.

Copper is a reddish-pink metal with a golden luster and ranks 29th in the chemical element table, with a density of 8.93 kg/m3, specific gravity of 8.93 g/cm3, boiling point of 2657℃ and melting point of 1083℃, with high ductility, softness and malleability. It has particularly high conductivity for heat and electricity, has low chemical activity, has excellent corrosion resistance at low humidity and room temperature, and oxidizes to form oxides when heated.

As shown in the recently published data below, it is proven that copper has an excellent antibacterial effect against Corona 19 (COVID-19), and it can be seen that Corona 19 bacteria in contact with copper are eradicated within 4 hours.

(Experimental conditions: 21~23℃)

(Source: New England Journal of Medicine)

The oil flavoring is one or two or more of the oils in which liquid flavors such as lemon flavor, grapefruit flavor, black cherry flavor, apple flavor, coffee bean flavor or herb flavor, acacia flavor, and pine flavor are desired, such as natural flavor extracted from natural plants or fruits. may be used selectively according to the purpose and function.

When the weight ratio of these oil spices to the total weight is less than 5%, the efficacy of fragrance emission is reduced, and when the weight ratio exceeds 15%, the fragrance emission is good, but the overall physical properties are deteriorated and the fragrance emission is too strong in a soft state, which is rather difficult for the user. It is desirable to set the weight ratio to 5 to 15% because it shows an adverse effect of burdening, adversely affects the stability of the product, and has an uneconomical problem due to severe waste of fragrance.

If the weight ratio of the ethanol added is less than 30%, the emission of the fragrance does not meet the expected value, and at the same time, the problem that the fragrance is not completely dissolved occurs, and when 40% or more is used, the fragrance is well dissolved. It is preferable to set the weight ratio to 30 to 40% because the fragrance is emitted too well, causing a problem in that the fragrance persistence is shortened.

The additive performs a stabilizer function to prevent precipitation of the copper powder, and is applied in an amount of 0.8 to 1.0% by weight based on the weight% of the total composition. As such an additive, any one of polyethylene glycol (PEG) and polyvinylidene chloride (PVPC) is applied.

The manufacturing method for the disinfectant of the present invention is described as follows.

In the first step, the mixture composed of each weight ratio is put into a centrifugally driven mixer together with EVA particles, sealed, and then maintained at a low pressure below atmospheric pressure, preferably in a vacuum state, through an internal heating means. When the process of slowly stirring while heating to a temperature of 60℃, preferably around 55℃, and then stopping and stirring again is repeated for about 10 to 12 hours and mixed, the EVA particles thermally expand under a low pressure, and the porosity inside the EVA particles is reduced. As the pores of the EVA particle expands widely, oil spices and copper powder penetrate into the countless pores of the EVA particles and are absorbed in large quantities by capillarity through the openings of the countless fine pores on the surface. At this time, the heating temperature is preferably heated to a temperature within the range of 50 ~ 60 ℃, but more preferably, it is most preferable to heat at a temperature below the softening temperature of EVA, that is, at a temperature around 55 ℃ in consideration of surface softening of EVA particles. And, it was confirmed that the closer the softening temperature is to 70 ~ 80 ℃, the pores on the surface of the EVA particles are rather closed, which hinders the penetration of the liquid natural fragrance into the pores, resulting in a decrease in the penetration efficiency.

In the first process of mixing and impregnation, since the copper powder is not completely impregnated into the EVA particle, the second process of coating the outer surface of the EVA particle with copper powder is performed.

In this second process, while maintaining the inside of the mixer at a low pressure below atmospheric pressure, preferably in a vacuum state, the inside of the mixer is heated to a temperature of 40 to 45 ° C., preferably at an internal temperature of around 43 ° C. After mixing by repeating the process of stirring again for about 3 to 5 hours, it is cooled at room temperature to prepare a disinfectant.

During the mixing process, the process of slowly stirring while heating to an appropriate internal temperature, then stopping and stirring again is repeated once. In the process of mixing, the EVA particles expand in volume at a low pressure, and the porous pores inside the EVA particles expand widely, forming countless fine pores on the surface. The openings are also widened, and the entire amount of liquid natural fragrance penetrates into the countless pores of the EVA particles and is absorbed by the capillary action through them, so that the remaining amount of oil fragrance is not generated and the entire amount is adsorbed in the blender that rotates closed.

When the disinfectant prepared in this way is cooled at room temperature of 18 to 20 ° C, the volume of the EVA particles, which have been heated and expanded, is gradually cooled and the volume is contracted. While being closed, it maintains a minimal opening, suppressing the excessive release of the liquid natural fragrance that is adsorbed inside, so that the fragrance emission period lasts for 2 to 3 months, and the copper component coated on the outer surface of the EVA particles is removed from the outside. As it comes into direct contact with, antibacterial and sterilizing action is achieved.

[Example]

Selected EVA particles with a particle size of 3 to 5 mm are washed with water to remove foreign substances or oil components present on the surface, and then, in total weight ratio, 60 to 50% of EVA particles, 30 to 40% of ethanol, 0.7 to 1.2% of copper powder, and oil fragrance Prepare 5-15%.

After the copper powder of the mesh is added to ethanol, a primary mixed solution is prepared by mixing at room temperature using a mixing device.

After adding the oil flavoring to the first mixed solution, the mixture is mixed at room temperature to prepare a second mixed solution.

After putting the secondary mixed solution of ethylol, copper powder, and oil fragrance mixed with EVA particles into a blender, stirring at a temperature of 50 to 60 ° C. for 10 hours, soft EVA particles are impregnated with copper powder and oil fragrance go through the process of becoming

Subsequently, after lowering the internal temperature of the mixer by 40 to 45 ° C, a coating process is performed on the outer surface of the EVA particles while stirring for 4 hours.

After the coating process is completed, the disinfectant that has been manufactured by cooling at room temperature has a coating layer formed on the outside, which is hard and has soft physical properties on the inside, and the fragrance emission lasts for 40 to 50 days.

The test results for proving the bactericidal effect of the disinfectant of the present invention are as follows.

1. Test materials

* test strain; Escherichia coli ATCC 10536

* Culture conditions: Medium (agar medium, Nutrient Agar), culture temperature (37.2±0.2 ℃)

2. Test method

* Test method: Biocide effect, efficacy test method

* Test conditions: test temperature (20±1 ℃), reaction time (60 minutes ± 10 seconds), test environment (clean condition, 0.3g/L BSA reagent), neutralizing agent (basic neutralizing agent in the test method)

3. Test procedure

Prepare a test strain suspension so that the concentration of the test strain is 1.5×10 ⁸ ~ 5.0×10 ⁸ CFU/mL, and prepare 3 test tubes and 6 control tubes. Inoculate 1 mL of interference material and 1 mL of test strain suspension, and maintain in a constant temperature water bath at 20 ± 1 ° C for 2 minutes ± 10 seconds.

After maintenance, put 8mL test solution in the test tube and react for 60 minutes ± 10 seconds in a constant temperature water bath at 20 ± 1 ℃. After the reaction, put 1mL of the reaction mixture into a test tube containing 8mL of neutralizing agent and 1mL of water, and neutralize in a constant temperature water bath at 20±1℃ for 5 minutes ± 10 seconds. After neutralization, the neutralization mixture is inoculated into each of the two mediums by serial dilution. After culturing the inoculated medium in an incubator for 48 hours, the number of viable cells is counted.

The viable cell count reduction value and the viable cell count reduction rate are calculated as follows.

[Bacterial count reduction value]

logR = logN _t - logN _a

[Bacterial count reduction rate]

Decrease rate (%) = N _t -N _a /N _t × 100

R: Viable cell count reduction value

N _t : Average concentration of 3 control groups (CFU/mL)

N _a : Average concentration of 3 test groups (CFU/mL)

4. Test results

(CFU: Colony Forming Unit)

picture 1

(Sample not inoculated with the disinfectant of the present invention, elapsed time: 60 minutes)

photo 2

(Sample inoculated with the fungicide of the present invention, elapsed time: 60 minutes)

5. Test results

As a result of testing the sterilization effect of the disinfectant of the present invention, it can be seen that the sterilization effect is excellent, as shown in the test result showing a reduction of 2.2 log of E. coli with respect to the test strain after 60 minutes and a reduction rate of 99.380%. .

As described above, the sterilizer of the present invention is used by being put into the dust collection room of a vacuum cleaner, and since it directly contacts various dirt inside the dust collection room, the effect of sterilizing bacteria and germs is high, and it is easy to enter the dust collection room through the suction port. Because it can be injected, it has an effect that can be used easily and simply. In addition, since the fragrance emitted from the disinfectant lasts for a long time, there is an effect of increasing the product value.

The present invention provides a clean and hygienic environment by solving the problem of indoor contamination by odors and germs generated by existing vacuum cleaners, and is not limited not only to vacuum cleaners but also to items and places where odors and germs are generated. It is a useful invention that can be applied and used.

Claims (2)

In order to remove odors and germs generated by vacuum cleaners,
A fragrance characterized in that the disinfectant is formed in a granular form with a particle size of 3 to 8 mm, a coating layer made of copper powder is formed on the outer surface of the disinfectant, and the disinfectant is introduced into the dust collection room by the suction power of the vacuum cleaner. Sterilizer for vacuum cleaners containing According to claim 1,
The disinfectant is a disinfectant for vacuum cleaners containing aromatics, characterized in that it is composed of 60 to 50% of EVA particles, 30 to 40% of ethanol, 0.7 to 1.2% of copper powder, and 5 to 15% of oil fragrance as a total weight ratio.