KR102484801B1 - Non-woven fabric manufacturing method for air purifiers with improved sterilization effect and biodegradability, harmless to the human body and environment-friendly - Google Patents

Abstract

The present invention provides a non-woven fabric for an air purifier that has improved sterilization effect, is biodegradable to be harmless to a human body, and is environmentally friendly. A method for manufacturing a non-woven fabric includes: a first step of obtaining a first master batch; a second step of obtaining a second master batch; a third step of obtaining a biodegradable resin composite; a fourth step of manufacturing an MB non-woven fabric; a fifth step of forming a plurality of perforated holes and then applying an antibacterial agent; and a sixth step of manufacturing a non-woven fabric. The non-woven fabric has biodegradable and antibacterial properties.

Description

Non-woven fabric manufacturing method for air purifiers with improved sterilization effect, harmless to the human body and eco-friendly biodegradability

The present invention relates to a method for manufacturing a nonwoven fabric for an air purifier, which has improved sterilization effect, is biodegradable, harmless to the human body, and environmentally friendly.

Conventional non-woven fabrics for air purifiers (used as HEPA filters, etc.) have only a filtering effect such as fine dust, but no sterilization effect, so they have a fatal disadvantage in hygiene due to the proliferation of microorganisms, bacteria, viruses, etc., and substances harmful to the human body are emitted. There was a problem, and the cleaning liquid used for cleaning, maintenance, and repair of the conventional air purifier was also a chemical surfactant, which was harmful to the human body and not harmful to the environment.

The problem to be solved by the present invention is to provide a nonwoven fabric for an air purifier that has improved sterilization effect and is harmless to the human body and environmentally friendly due to its biodegradability.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

The nonwoven fabric for an air cleaner of the present invention for solving the above problems includes a first step of obtaining a first master batch by kneading a first natural polymer material and a base resin; a second step of obtaining a second master batch by kneading the first natural polymer material, the second polymer material, and the base resin; A third step of kneading the first master batch and the second master batch with a base resin to obtain a biodegradable resin composite; A fourth step of kneading 1 to 20 parts by weight of metal nanoparticles based on 100 parts by weight of the biodegradable resin composite, spun bonding to prepare an SB nonwoven fabric, and melt-blowing the biodegradable resin composite to prepare an MB nonwoven fabric; A fifth step of forming a plurality of perforated holes in the MB nonwoven fabric using a perforator and then applying an antibacterial agent; It is prepared by including a sixth step of manufacturing a nonwoven fabric by laminating the SB nonwoven fabric and the MB nonwoven fabric, and the biodegradable resin composite comprises 0.1 to 15% by weight of the first natural polymer material, 0.1 to 15% by weight of the second natural polymer material, and It may be characterized in that the composition includes a base resin as a residual amount.

The nonwoven fabric for air purifiers of the present invention applies metal nanoparticles to biodegradable natural polymer materials (chitosan, starch) and is coated with an antibacterial agent to provide a nonwoven fabric for air purifiers having both biodegradability and antibacterial activity.

In addition, according to the nonwoven fabric for air purifiers of the present invention, it can contribute to personal hygiene and public hygiene by preventing the spread of infectious diseases caused by viruses and protecting individuals from infectious diseases, and can be used after repeated washing instead of disposable. It is effective in terms of maintenance of air purifiers, and when disposed of by landfill, it is biodegradable, which also has the effect of significantly reducing environmental pollution.

Furthermore, the cleaning, maintenance, and repair method of the air purifier of the present invention eliminates the use of chemical surfactants by using a cleaning agent derived from natural materials (fermented soybean broth, green tea extract, etc.), improves cleaning power, minimizes the generation of pollutants, and improves sterilization power. has the effect of

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

1 is a perspective view showing a nonwoven fabric for an air cleaner of the present invention.
Figure 2 is a flow chart showing the manufacturing process of the non-woven fabric for the air cleaner of the present invention.
3 is a flow chart showing a cleaning, maintenance, and repair method of the air purifier of the present invention.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, only these embodiments are intended to complete the disclosure of the present invention, and are common in the art to which the present invention belongs. It is provided to fully inform the person skilled in the art of the scope of the invention, and the invention is only defined by the scope of the claims.

Terminology used herein is for describing the embodiments and is not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. As used herein, "comprises" and/or "comprising" does not exclude the presence or addition of one or more other elements other than the recited elements. Like reference numerals throughout the specification refer to like elements, and “and/or” includes each and every combination of one or more of the recited elements. Although "first", "second", etc. are used to describe various components, these components are not limited by these terms, of course. These terms are only used to distinguish one component from another. Accordingly, it goes without saying that the first element mentioned below may also be the second element within the technical spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with meanings commonly understood by those skilled in the art to which the present invention belongs. In addition, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless explicitly specifically defined.

Hereinafter, the nonwoven fabric 10 for an air cleaner of the present invention will be described.

The nonwoven fabric 10 for an air cleaner of the present invention includes a front part 11 and a rear part 12, wherein the front part 11 is a first natural material selected from the group consisting of chitosan, polylactic acid, and mixtures thereof. 1 to 20 parts by weight of metal nanoparticles based on 100 parts by weight of a biodegradable resin composite comprising 0.1 to 15% by weight of a polymer material, 0.1 to 15% by weight of a second natural polymer material selected from starch, and a base resin as the balance kneading, It may be an SB nonwoven fabric obtained by spun bonding.

In addition, the back side 12 may be an MB nonwoven fabric obtained by melt blowing the biodegradable resin composite.

As exemplarily shown in FIG. 1, the nonwoven fabric 10 for an air cleaner of the present invention includes a front part 11 and a rear part 12, wherein the front part 11 includes chitosan, polylactic acid and these Based on 100 parts by weight of a biodegradable resin composite comprising 0.1 to 15% by weight of a first natural polymeric material selected from the group consisting of mixtures, 0.1 to 15% by weight of a second natural polymeric material selected from starch, and a base resin as the balance. It is an SB nonwoven fabric obtained by kneading 1 to 20 parts by weight of metal nanoparticles and spun bonding.

SB non-woven fabric (spun-bonded fabric) is a type of non-woven fabric mainly made by spinning polypropylene (PP), polyethylene (PE), or polyester (PET: Polyester) and then bonding them by applying heat. As a long-fiber nonwoven fabric, it has excellent processability, chemical resistance, and safety, and is widely used in various fields such as hygiene, agriculture, and daily life. In particular, it is a material used in filters and packaging materials in air purifiers, and has recently entered the field of new materials for industrial materials and automobile parts, attracting attention as a high value-added product. SB nonwoven fabric is used for various purposes as well as masks because of its strong strength and low price.

The SB nonwoven fabric constituting the front part 11 of the nonwoven fabric 10 for an air cleaner of the present invention contains 0.1 to 15% by weight of a first natural polymer material selected from the group consisting of chitosan, polylactic acid, and mixtures thereof, and starch. It is obtained by kneading 1 to 20 parts by weight of metal nanoparticles based on 100 parts by weight of the biodegradable resin composite containing 0.1 to 15% by weight of the selected second natural polymer material and a base resin as the balance, and spun bonding, and the SB nonwoven fabric In order to impart biodegradability to the base resin as the main material, a natural polymer material, in particular, as described above, a first natural polymer material selected from the group consisting of chitosan, polylactic acid, and mixtures thereof, and a second natural polymer material selected from starch Including, it is characterized in that it is composed to include metal nanoparticles to impart antibacterial properties.

In this case, the base resin is mainly used thermoplastic resins including polypropylene, polyethylene, or polyester used in the manufacture of conventional SB nonwoven fabrics, preferably polypropylene or polyester. , more preferably polypropylene.

The first natural polymer material is a natural polymer material selected from the group consisting of chitosan, polylactic acid, and mixtures thereof, and functions to impart biodegradability.

Chitosan is a material obtained by processing chitin contained in crustaceans, and is a generic term for substances obtained by deacetylating chitin contained in crabs, crayfish, and shrimp shells. In 1811, French natural historian Bracono discovered an unknown ingredient in mushrooms, namely chitin. Then, in 1859, chemist Ruge deacetylated chitin to obtain a new substance, which was named chitosan by scientist Hupe Zaira in 1894. Chitosan is a major component of crabs, shrimps, insects, and mushrooms, and is the second most abundant natural product on earth, and is also known to have antibacterial properties.

Poly(lactic acid) is a biodegradable synthetic polymer synthesized by polycondensation of lactic acid or ring-opening polymerization of lactide, and is also called polylactide. There are poly-L-lactic acid, poly-D-lactic acid and poly-DL-lactic acid, but all are biodegradable.

That is, the first natural polymer materials are all biodegradable, and not only have biodegradability per se, but also a biodegradable resin composite through kneading with a base resin together with the second natural polymer materials to be described later according to the present invention. Constituting, and accordingly, this biodegradable resin composite is processed into an SB nonwoven fabric through spun bonding, and this SB nonwoven fabric also has biodegradability.

The first natural polymeric material may be included in an amount of 0.1 to 15% by weight, preferably 0.5 to 12% by weight, and more preferably 1 to 10% by weight based on the total weight of the biodegradable resin composite. When the natural polymeric material is included in an amount of less than 0.1% by weight based on the total weight of the biodegradable resin composite, the biodegradability of the obtained SB nonwoven fabric is not sufficient, resulting in environmental pollution due to insufficient biodegradation during disposal, especially when disposed of by landfill. There may be a problem that causes problems or takes too much time for decomposition, and if it exceeds 15% by weight, there may be a problem that yarn cutting occurs during the spun bonding process and the long fiber SB nonwoven fabric cannot be obtained.

The second natural polymer material is a natural polymer material selected from starch, which is kneaded with a base resin together with the first natural polymer material as described above to form a biodegradable resin composite, and is subsequently processed into an SB nonwoven fabric through spun bonding. . Starch includes both undenatured and modified starches of plant origin, wherein the natural starch is corn, potato, sweet potato, wheat, rice, oat, barley, tapioca, sago, waxy maize, sorghum (sorghum), quinoa (quinoa), amaranth (amaranth), tapioca, and may be unmodified starch selected from the group consisting of a mixture of two or more of them, and the modified starch may be etherified, ester It may be a modified starch modified by a physicochemical treatment method consisting of oxidation, oxidation, acid treatment (including fulvic acid treatment or humic acid treatment), oxidized esterification, oxidized etherification, or enzyme treatment.

The second natural polymeric material may be included in an amount of 0.1 to 15% by weight, preferably 0.5 to 12% by weight, and more preferably 1 to 10% by weight based on the total weight of the biodegradable resin composite. When the material is included in an amount of less than 0.1% by weight based on the total weight of the biodegradable resin composite, the biodegradability of the obtained SB nonwoven fabric is not sufficient, which causes environmental pollution due to insufficient biodegradation during disposal, especially when disposed of by landfill. It may cause problems, or it may take too much time for decomposition, and if it exceeds 15% by weight, there may be a problem in that yarn cutting occurs during the spun bonding process and the long fiber SB nonwoven fabric cannot be obtained.

In particular, the SB nonwoven fabric prepared according to the present invention is mixed and kneaded with metal nanoparticles before spun-bonding the biodegradable resin composite as described above, and antibacterial properties are imparted by the metal nanoparticles. At this time, it is preferable to knead 1 to 20 parts by weight of metal nanoparticles based on 100 parts by weight of the biodegradable resin composite, and when the metal nanoparticles are included in an amount of less than 1 part by weight based on 100 parts by weight of the biodegradable resin composite, As desired, there may be a problem in that the antibacterial property is not sufficiently exhibited, and conversely, when the amount exceeds 20 parts by weight, there may be a problem in that yarn cutting occurs during the spun bonding process and a long fiber SB nonwoven fabric cannot be obtained.

The metal nanoparticles may be selected from the group consisting of silver (Ag) nanoparticles, copper (Cu) nanoparticles, zinc (Zn) nanoparticles, and a mixture of two or more of them, wherein the nanoparticles have a size in the range of 1 to 100 nm. It has an average particle size within The metal nanoparticles having an average particle size within the above range function as so-called quantum dots, and when activated with light, generate compounds called superoxides, which can kill drug-resistant bacteria in particular. It is known to exhibit strong antibacterial activity. Here, superoxide refers to reactive oxygen species that interfere with bacterial metabolism and cellular processes. In other words, when the quantum dots are activated with light, semiconducting nanoparticles or quantum dots that generate reactive oxygen species known as superoxides can enhance the activity of existing antibiotics.

The MB nonwoven fabric constituting the rear portion 12 of the nonwoven fabric 10 for an air purifier of the present invention is an MB nonwoven fabric obtained by melt blowing a biodegradable resin composite used to manufacture the SB nonwoven fabric. That is, it is a biodegradable resin composite used when manufacturing the SB nonwoven fabric and does not contain metal nanoparticles. That is, the biodegradable resin composite contains 0.1 to 15% by weight of a first natural polymeric material selected from the group consisting of chitosan, polylactic acid, and mixtures thereof, 0.1 to 15% by weight of a second natural polymeric material selected from starch, and the balance of the base. made of resin.

The first natural polymeric material, the second natural polymeric material, and the base resin are the same and/or similar to those described above, and repeated descriptions will be avoided. MB non-woven fabric obtained by melt blowing of biodegradable resin composite is a method of manufacturing a membrane (non-woven fabric) with ultra-fine fiber structure by melting thermoplastic raw materials such as polypropylene (PP) at high temperature and spraying air while spinning with a nozzle of fine holes. to be.

The biodegradable resin composite may further include an inorganic powder selected from the group consisting of CaO, MgO, ZnO, phosphate, silica (including SiO 2 and glass beads), and mixtures thereof.

The first natural polymer material constituting the biodegradable resin composite may be a mixture of polylactic acid and chitosan in a weight ratio of 9 to 1: 1 to 9 of polylactic acid and chitosan.

Furthermore, in the nonwoven fabric 10 for an air purifier of the present invention, a plurality of perforated holes are formed on the rear surface 12 using a perforated machine 300, and then an antibacterial agent is applied to the plurality of perforated holes to increase the application area of the antibacterial agent. Antibacterial (sterilization) performance can be expanded. As an antimicrobial agent, one or more of PE727, PG226, PG228, BKC50, TC130, PG303, PG311 and quaternary ammonium-based antimicrobial agents from CDI Co., Ltd. may be used.

Hereinafter, a method of manufacturing the nonwoven fabric 10 for an air cleaner of the present invention will be described.

The manufacturing method of the nonwoven fabric 10 for an air purifier of the present invention,

(1) a first step of kneading a first natural polymer material and a base resin to obtain a first master batch;

(2) a second step of kneading the first natural polymer material, the second polymer material and the base resin to obtain a second master batch;

(3) a third step of kneading the first master batch and the second master batch with a base resin to obtain a biodegradable resin composite;

(4) A fourth step of kneading 1 to 20 parts by weight of metal nanoparticles based on 100 parts by weight of the biodegradable resin composite, spun bonding to prepare an SB nonwoven fabric, and melt-blowing the biodegradable resin composite to prepare an MB nonwoven fabric;

(5) a fifth step of forming a plurality of perforated holes using a punching machine 300 on MB nonwoven fabric and applying an antibacterial agent;

(6) a sixth step of manufacturing a non-woven fabric by laminating the SB non-woven fabric and the MB non-woven fabric; including,

The biodegradable resin composite is characterized in that it is formulated to include 0.1 to 15% by weight of the first natural polymer material, 0.1 to 15% by weight of the second natural polymer material, and the balance of the base resin.

The first step consists of kneading a first natural polymeric material and a base resin to obtain a first master batch, wherein the first natural polymeric material may be selected from the group consisting of chitosan, polylactic acid, and mixtures thereof; , The base resin may be selected from the group consisting of polypropylene (PP), polyethylene (PE), polyester (PET), or a mixture of two or more thereof. Kneading in the first step may be performed by mixing in a known kneader at a temperature within the range of 30 to 50 ° C. for a time within the range of 50 to 100 hours.

The second step consists of kneading the first natural polymer material, the second polymer material and the base resin to obtain a second master batch, wherein the second natural polymer material may be selected from starch, preferably It may be selected from the group consisting of plant-derived unmodified starch or modified starch, more preferably corn, potato, sweet potato, wheat, rice, oat, barley, tapioca, sago, waxy maize , Unmodified starch composed of sorghum, quinoa, amaranth, and tapioca, and etherification, esterification, oxidation, and acid treatment of the unmodified starch (including fulvic acid treatment or humic acid treatment) , It may be selected from the group consisting of modified starch modified by a physicochemical treatment method consisting of oxidized esterification, oxidized etherification, or enzyme treatment. Kneading in the second step may be performed by mixing in a known kneader at a temperature within the range of 30 to 50 ° C. for a time within the range of 50 to 100 hours.

The third step consists of kneading the first master batch and the second master batch with a base resin to obtain a biodegradable resin composite, wherein the biodegradable resin composite obtained in the first to third steps is It is formulated to contain 0.1 to 15% by weight of a natural polymeric material, 0.1 to 15% by weight of a second natural polymeric material, and a base resin as the balance. That is, in the first step, only the first natural polymeric material is mixed with the base resin, and in the second step, the second natural polymeric material, i.e., starch, is further mixed with the mixture obtained in the first step, and mixed in the above ratio. It has a feature that makes it possible.

The fourth step consists of kneading 1 to 20 parts by weight of metal nanoparticles based on 100 parts by weight of the biodegradable resin composite, spun bonding to prepare an SB nonwoven fabric, and melt-blowing the biodegradable resin composite to prepare an MB nonwoven fabric. Here, the production of SB nonwoven fabric by spun bonding or the production of MB nonwoven fabric by melt blowing are known nonwoven fabric manufacturing methods that can be easily performed by those skilled in the art, and detailed descriptions thereof will be omitted.

The fifth step is to form a plurality of perforated holes on the MB nonwoven fabric by using a perforating machine 300 and apply an antibacterial agent. PE727, PG226, PG228, BKC50, TC130 of CDI Co., Ltd. on the MB nonwoven fabric having a plurality of perforated holes , PG303, PG311 and at least one of quaternary ammonium-based antimicrobial agents diluted in water can be applied by spraying or depositing. In this case, the antibacterial performance can be maximized by applying the antibacterial agent solution by infiltrating into the plurality of perforated holes.

The sixth step consists of manufacturing a nonwoven fabric by laminating the SB nonwoven fabric and MB nonwoven fabric obtained in the 4th and 5th steps, where the process of laminating the SB nonwoven fabric and MB nonwoven fabric is also easily performed by those skilled in the art. As it is known to the extent possible, a detailed description thereof will be omitted.

The first natural polymer material constituting the biodegradable resin composite may be a mixture of polylactic acid and chitosan, and the polylactic acid:chitosan mixture ratio is 9 to 1:1 to 9 in weight ratio.

According to the method of the present invention as described above, a nonwoven fabric having biodegradability and antibacterial activity can be obtained.

Hereinafter, the perforated machine 300 used to form a plurality of perforated holes in the rear part 12 (MB nonwoven fabric) of the nonwoven fabric 10 for an air cleaner according to the present invention will be described in more detail. The punching machine 300 of the present invention includes a first frame 310, a second frame 320, a first actuator 330, a second actuator 340, a plurality of first punching pins 350 and a plurality of first Two perforated pins 360 may be included.

The first frame 310 and the second frame 320 may be in the form of plates disposed facing each other, and the first frame 310 is disposed on the upper side and the second frame 320 is disposed on the lower side to form the first frame 310. The lower surface may face the upper surface of the second frame 320 . The first actuator 330 may lower the first frame 310 at the time of punching, and may return (recur) to the original position by lifting the first frame 310 after completion of the punching. The second actuator 340 can move the second frame 320 up and down when drilling is completed, and can return (recur) to its original position by lowering the second frame 320 after the drilling is completed. On the other hand, the rear part 12 is interposed in the space between the first frame 310 and the second frame 320 may be perforated.

To this end, the plurality of first perforated pins 350 may be formed to grow downward from the lower surface of the first frame 310, and the plurality of second perforated pins 360 may be formed from the upper surface of the second frame 320. It can be formed to grow upward. In addition, the plurality of first perforated pins 350 and the plurality of second perforated pins 360 may be arranged so as not to overlap (overlap) with respect to a mutually perpendicular direction (vertical direction). Accordingly, the perforation holes formed to be dug downward from the upper surface by the plurality of first perforated pins 350 and the perforated holes formed to be dug up from the lower surface by the plurality of second perforated pins 360 are in a vertical direction (up and down direction). may not overlap with each other based on .

On the other hand, in order to support a larger amount of the antimicrobial solution, it is preferable that the plurality of perforated holes are formed in a wedge shape in which the cross-sectional area becomes narrower from the surface of the rear portion 12 toward the center, and accordingly, the plurality of first perforated pins ( 350) An inclined portion inclined in the vertical direction may be formed at each lower end portion, and an inclined portion inclined in the vertical direction may be formed at the upper end portion of each of the plurality of second perforated pins 360 .

As a result, when the first frame 310 descends in the vertical direction and the second frame 320 ascends in the vertical direction, the rear part 12 has a plurality of first perforated pins 350 and a plurality of A plurality of perforated holes having a wider cross-sectional area toward the surface of the rear surface portion 12 may be formed by being pulled by the inclined portion of the second perforated pin 360 of the. In this case, the inclined portions of the plurality of first perforated pins 350 and the inclined portions of the plurality of second perforated pins 350 are inclined at the same direction and at the same angle with respect to the vertical direction toward the surface of the rear surface portion 12. can As a result, the perforated hole formed by the plurality of first perforated pins 350 pulls the sound absorbing material 100 to one side, and the perforated hole formed by the plurality of second perforated pins 360 pulls the rear part 12 to one side and By pulling and compensating for the opposite side, the overall density of the rear portion 12 is uniform, and uniform durability can be secured.

Hereinafter, the cleaning, maintenance, and repair method of the air purifier of the present invention will be described.

The cleaning, maintenance, and repair method of the air purifier of the present invention,

(1) a first step in which the filter saver, the antibacterial filter, and the HEPA filter (dust collection filter) are separated from the case of the air purifier;

(2) a second step in which the vacuum cleaner sucks dust from the case of the air purifier and the filter saver;

(3) a third step in which the washer sprays the washing liquid to the case and filter saver of the air purifier;

(4) a fourth step in which the cleaned filter saver is installed in the case of the air purifier, and a new antibacterial filter and a HEPA filter are installed.

In an air purifier, a plastic injection molding case forms the exterior, and an actuator (suction fan) built into the case provides a driving force to suck in outside air. It may be an ejection device.

The filter saver has a plurality of holes formed in the plastic injection frame to protect the antibacterial filter and the HEPA filter. As the antibacterial filter, a charcoal-embedded filter may be used, but is not limited thereto, and the HEPA filter may be the nonwoven fabric 10 for an air purifier of the present invention.

The washer is a device that sprays a cleaning liquid, and a micro-foaming detergent having sterilizing power and eco-friendly may be used as the cleaning liquid in the cleaning, maintenance, and repair method of the air purifier of the present invention.

Washing solution is 12 to 25 parts by weight of oleic acid, 40 to 50 parts by weight of soy colloid, 10 to 20 parts by weight of sodium percarbonate, 5 to 10 parts by weight of sodium bicarbonate, and 4 to 8 parts by weight of alkylbenzenesulfonate based on 100 parts by weight of EM fermentation liquid Part, it may be achieved by including 10 to 15 parts by weight of green tea extract, 5 to 10 parts by weight of grapefruit extract, 10 to 20 parts by weight of decyl glucoside.

Oleic acid is the main component of oils and fats such as olive oil and camellia oil. It is an unsaturated fatty acid and is used as a colorless and odorless liquid in cosmetics, pharmaceutical additives, and fabric softeners. If the amount of oleic acid is less than 12 parts by weight, the performance of the emulsifier may be insufficient, and if it is more than 25 parts by weight, it may become excessive and the performance may deteriorate.

Soy colloid is an eco-friendly surfactant that helps alleviate skin diseases such as atopy and allergies, and has antibacterial, antifungal, deodorant, and skin protection effects.

If the amount of soy colloid is less than 40 parts by weight, the cleaning function is deteriorated, and if it is more than 50 parts by weight, there is a concern that the desired performance may not be satisfied because it is excessive.

When sodium percarbonate is dissolved in water, it decomposes into sodium carbonate and hydrogen peroxide, from which hydrogen peroxide generates nascent oxygen, which has only one oxygen atom. It is used as a bleaching agent because of the nascent oxygen.

If the amount of sodium percarbonate is less than 10 parts by weight, the bleaching performance deteriorates, and if it is more than 20 parts by weight, there is a possibility that the bleaching performance becomes too excessive.

Sodium bicarbonate is called baking soda and sodium bicarbonate, and is used for odor removal and cleaning by utilizing abrasive and adsorption action.

If the amount of sodium bicarbonate is less than 5 parts by weight, the polishing and adsorption power is lowered, and if it is more than 10 parts by weight, there is a concern that the performance may not be exhibited due to excessive sodium bicarbonate.

Alkylbenzenesulfonate is a kind of anionic surfactant and is widely used as a neutral detergent.

If the amount of the alkylbenzene sulfonate is less than 4 parts by weight, the detergency is lowered, and if it is more than 8 parts by weight, the detergency is excessive and there is a concern that the performance may not be exhibited.

Green tea extract is used as an antioxidant, and if the green tea extract is less than 10 parts by weight, the effect is reduced, and if it is more than 15 parts by weight, there is a concern that the performance may not be exhibited because it is too excessive.

Decyl glucoside is a mild vegetable nonionic surfactant component obtained by the reaction of glucose extracted from sugar beet and corn starch with decyl alcohol, a fatty alcohol extracted from coconut oil and palm kernel oil.

If the amount of decyl glucoside is less than 10 parts by weight, the detergency is lowered, and if it is more than 20 parts by weight, there is a concern that the performance may not be exhibited because it is too excessive.

EM fermentation liquid removes harmful bacteria with beneficial bacteria and removes odor.

If the EM fermented solution is less than 30 parts by weight, the disinfecting power is lowered, and if it is more than 40 parts by weight, there is a concern that the performance may not be exhibited because it is too excessive.

EM fermented liquid is made by mixing 20 to 30 parts by weight of EM stock solution, 30 to 40 parts by weight of rice water, and 10 to 12 parts by weight of salt based on 100 parts by weight of fermented soybean extract.

In addition, the EM fermented liquid is made by mixing 10 to 15 parts by weight of an antibacterial agent and 20 to 25 parts by weight of an aromatic substance based on 100 parts by weight of a fermented soybean extract.

If the antibacterial agent is less than 10 parts by weight, the antibacterial performance is lower than the standard, and if it is more than 15 parts by weight, it is excessive and causes cost increase.

The antibacterial agent is any one or a mixture of two or more selected from the group consisting of aluminum hydroxide (Al(OH) 3 ), zirconium hydroxide (Zr(OH) 4 ), silver (Ag), and platinum (Pt).

Antibacterial performance by the antibacterial agent can be exhibited, and bacteria and germs can be removed.

The fragrance is made by mixing 10 to 20% by weight of a functional oil with 80 to 90% by weight of the fragrance.

The functional oil is selected from the group consisting of lavender essential oil, lemon essential oil, and pine needle extract oil, or a mixture of two or more.

Hereinafter, the manufacturing process of the eco-friendly fine foam detergent having improved sterilization power according to the present invention is as follows.

Step 1) Put 15 parts by weight of oleic acid in a container and boil by heating.

Step 2) After cooling the container, when the temperature reaches about 20 to 30 ° C, 40 parts by weight of soy colloid, 10 parts by weight of sodium percarbonate, and 5 parts by weight of sodium bicarbonate are added and mixed.

Step 3) After that, 7 parts by weight of alkylbenzenesulfonate is mixed.

Step 4) Add 10 parts by weight of green tea extract and 8 parts by weight of grapefruit extract to the mixture obtained in Step 3 and mix them in the mixture in the container.

Step 5) The mixture obtained in Step 4 and 10 to 20 parts by weight of decyl glucoside are added to 100 parts by weight of the EM fermentation solution and mixed.

Step 6) 12 parts by weight of an antibacterial agent and 25 parts by weight of an aromatic substance are mixed with 100 parts by weight of the EM fermented liquid.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains can be implemented in other specific forms without changing the technical spirit or essential features of the present invention. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

Claims (1)

A first step of kneading a first natural polymeric material and a base resin to obtain a first master batch;
a second step of kneading the first natural polymeric material, the second natural polymeric material, and a base resin to obtain a second master batch;
A third step of kneading the first master batch and the second master batch with a base resin to obtain a biodegradable resin composite;
A fourth step of kneading 1 to 20 parts by weight of metal nanoparticles based on 100 parts by weight of the biodegradable resin composite, spun bonding to prepare an SB nonwoven fabric, and melt-blowing the biodegradable resin composite to prepare an MB nonwoven fabric;
A fifth step of forming a plurality of perforated holes in the MB nonwoven fabric using a perforator and then applying an antibacterial agent; and
A sixth step of manufacturing a nonwoven fabric by laminating the SB nonwoven fabric and the MB nonwoven fabric,
The biodegradable resin composite is formulated to include 0.1 to 15% by weight of a first natural polymeric material, 0.1 to 15% by weight of a second natural polymeric material and a base resin as the balance,
The punching machine includes a first frame, a second frame, a first actuator, a second actuator, a plurality of first punching pins, and a plurality of second punching pins,
The first frame and the second frame are in the form of plates disposed facing each other, and the first frame is disposed on an upper side and the second frame is disposed on a lower side so that the lower surface of the first frame faces the upper surface of the second frame. do,
The first actuator lowers the first frame at the time of perforation and moves the first frame up and down to return to its original position after perforation is completed;
The second actuator elevates the second frame during punching and moves the second frame down to return to its original position after completing the punching;
The MB nonwoven fabric is interposed in the space between the first frame and the second frame and perforated,
The plurality of first perforated pins are formed to grow downward from the lower surface of the first frame,
The plurality of second perforated pins are formed to grow upward from the upper surface of the second frame,
The plurality of first perforated pins and the plurality of second perforated pins are disposed so as not to overlap each other in a vertical direction,
An inclined portion inclined with respect to the vertical direction is formed at the lower end of each of the plurality of first perforated pins,
An inclined portion inclined with respect to the vertical direction is formed at the upper end of each of the plurality of second perforated pins,
Nonwoven fabric for air purifiers, characterized in that the inclined portions of the plurality of first perforated pins and the inclined portions of the plurality of second perforated pins are inclined in the same direction and at the same angle based on a vertical direction toward the surface of the MB nonwoven fabric manufacturing method.

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