CN215737054U - Novel fresh antibacterial dehumidification environmental protection gauze mask - Google Patents

Abstract

The utility model provides a novel fresh antibacterial dehumidifying environment-friendly mask which comprises a mask main body, an aluminum strip nose clip and a hanging lug line, wherein the mask main body comprises a waterproof polylactic acid fiber non-woven fabric layer, the periphery of the rear side of the waterproof polylactic acid fiber non-woven fabric layer is fixedly connected with a filter layer through hot-pressing compounding, the periphery of the rear side of the filter layer is fixedly connected with a super absorbent resin fiber spunlace non-woven fabric layer through hot-pressing compounding, and the periphery of the rear side of the super absorbent resin fiber spunlace non-woven fabric layer is fixedly connected with an antibacterial skin-friendly layer through hot-pressing compounding. The mask provided by the utility model has the characteristics of aromaticity, water absorption, bacteriostasis and degradability.

Description

Novel fresh antibacterial dehumidification environmental protection gauze mask

Technical Field

The utility model belongs to the technical field of masks, and particularly relates to a novel fresh antibacterial and dehumidifying environment-friendly mask.

Background

The mask is a sanitary article, is worn at the mouth and nose part and is used for filtering air entering the mouth and nose so as to achieve the effect of blocking harmful gas, smell, spray, virus and other substances. The mask has a certain filtering effect on air entering the lung, and in order to protect the health and safety of people, people need to wear a medical surgical mask or an N95 mask when going out to an area with dense people flow. The mask can effectively prevent external virus and germs from invading the respiratory system of people.

Along with the daily increase of wearing of people to the gauze mask, purchase quantity and consumption to the gauze mask are bigger and bigger, the unable centralized processing of abandonment gauze mask, mostly all handle along with domestic waste together, the used material of filter layer on the present market is polypropylene fiber meltblown, however because the molecular structure of polypropylene is the carbon-carbon single bond of saturation, relative molecular structure is more stable and difficult degradation, like this simple polypropylene spunbonded nonwoven brings the convenience when giving people's production life, also caused very big environmental pollution, consequently, the degradability of gauze mask is the problem that the market is urgently needed to solve at present.

Meanwhile, water vapor and bacteria are mixed in the air and the gas exhaled by people, and the mask is made of materials which are not easy to absorb water and does not have the characteristic of inhibiting the growth of the bacteria, so that bacteria and fungi such as escherichia coli, staphylococcus aureus, candida albicans and the like are easily bred in closed, stuffy, hot and humid environments generated when people wear the mask for a long time, skin discomfort is caused, and even skin diseases are induced or aggravated. The moisture of the mask reduces the electrostatic adsorption effect of the filter layer subjected to electret treatment, limits the service time of the mask, needs to be replaced in time after the mask is used for 8 hours, and cannot be used for one mask all the day, so that another problem is caused, when the mask needs to be replaced, people forget to carry the mask and contact with microbial germs in the external environment again when replacing the mask, and the risk of infection of people is increased. Therefore, multifunctional masks with skin friendliness, good air permeability, bacteriostasis and water absorption are urgently needed.

Current situation abroad

The development of a non-woven mask filter made with a biofunctional benzalkonium chloride coating that inactivated greater than 99% of SARS-Cov-2 particles, as well as life-threatening methicillin-resistant staphylococcus aureus and staphylococcus epidermidis within one minute of exposure was reported by a combination of laboratories from spain, norway and japan, and despite this result, further research was needed to ensure the safe and correct mass production and commercialization of such broad spectrum antimicrobial mask filters.

Research team of textile engineering department, university of daka engineering in bangladesh, explored research on the use of licorice root extract, which has antibacterial properties of Glycyrrhizic Acid (GA) and Glycyrrhizin (GL), and the manufacture of antiviral masks. Nanofiber membranes were fabricated using an electrospinning process. The nanofiber mask material was characterized by SEM and airflow rate testing. SEM results show that the diameter of the electrospun nanofiber is about 15-30 μm, and the electrospun nanofiber has random porosity and orientation and has the potential of capturing and killing viruses.

Current state of the country

At present, domestic researches on various functionalities of the mask are more, the antibacterial and antiviral properties, degradability and aromaticity of the mask are mainly focused, but the practicability and the research on the mask combining the aromaticity, bacteriostasis, dehumidification and degradability of the mask are few.

In the aspect of antibacterial and antiviral property, phyllanthus and the like propose a natural antibacterial medical mask, plant fibers, chitosan fibers and the like are adopted to prepare mask cloth, and wild chrysanthemum extract is sprayed on the mask under high pressure to achieve the antibacterial effect. In 2020, the high-efficiency antibacterial and antiviral anion mask is provided by old tree width, and the antibacterial and antiviral polyester fiber or polyamide fiber melt-blown anion non-woven fabric material is arranged in the middle layer of the mask main body, so that the mask can generate the concentration of 5800 pieces/cm³The antibacterial rate of the negative ions on escherichia coli and staphylococcus aureus reaches more than 99 percent, and the antibacterial rate on candida albicans reaches 97 percent; and the antiviral activity rate to influenza A viruses H1N1 and H3N2 reaches more than 95 percent. In 2020, the conception wave provides an electrostatic adsorption type spraying type nano-silver mask, and the technology can rapidly manufacture common melt-blown cloth into nano-silver sterilizing melt-blown cloth so as to manufacture the nano-silver sterilizing mask. However, the cost of the mask is high, and the mask is not suitable for daily purchase of people.

In the aspect of degradability, the Chenjinsuo provides a degradable antibacterial antiviral polyhydroxyalkanoates mask core material, natural degradable raw material PHA is adopted as the mask core material, and natural antibacterial antiviral agents are introduced, so that the mask core material is green, environment-friendly and degradable. In 2020, the tensity provides a polylactic acid fiber antibacterial degradable mask, but the filter layer still uses melt-blown cloth, namely polypropylene fiber is melt-blown, so that the full degradation cannot be realized.

In the aspect of aromaticity, Wangjingjing and Xiahang et al propose a preparation method of a mugwort-flavored mask, which extracts essential oil from mugwort to obtain mugwort essential oil, uniformly sprays the mugwort essential oil on mugwort leaves, puts the mugwort essential oil into a transparent sachet after being sealed and dried at a constant temperature, puts the sachet and a drying agent into a packaging bag with the mask, and carries out one-time thermoplastic packaging. Even junghong has provided a gauze mask with perfume valve, has increased the perfume box that can deposit spices on traditional gauze mask, and perfume box can open, and the perfume pearl that inside was placed can be according to user's hobby replacement. However, the utility model only increases the aromaticity of the mask, and the bacteriostatic problem of the mask is still not solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides a novel fresh antibacterial and dehumidifying environment-friendly mask which has the characteristics of aromaticity, water absorption, bacteriostasis and degradability.

The utility model adopts the following technical scheme:

the utility model provides a novel fresh antibacterial dehumidification environmental protection gauze mask, comprises gauze mask main part, aluminium strip nose clip, hangers line three, the gauze mask main part includes waterproof polylactic acid fibre non-woven fabrics layer, filter layer, super absorbent resin fibre water thorn non-woven fabrics layer, antibacterial close skin layer, through the compound fixedly connected with filter layer of hot pressing around waterproof polylactic acid fibre non-woven fabrics layer rear side, through the compound fixedly connected with super absorbent resin fibre water thorn non-woven fabrics layer of hot pressing around the filter layer rear side, through the compound fixedly connected with antibacterial close skin layer of hot pressing around the super absorbent resin fibre water thorn non-woven fabrics layer rear side.

Furthermore, two ends of the outer surface of the mask main body are fixedly provided with two ear hanging wires in a hot-pressing compounding mode, and the aluminum nose clip is embedded and fixed above the outer surface of the mask main body.

Furthermore, the waterproof polylactic acid fiber non-woven fabric layer is formed by spraying a waterproof material on the polylactic acid fiber spun-bonded non-woven fabric.

Further, the filter layer is made of polylactic acid fiber melt-blown cloth processed by electret.

Furthermore, the high water-absorbent resin fiber spunlace non-woven fabric layer is made of corn straw high water-absorbent resin fibers.

Further, the antibacterial skin-friendly layer is made of soybean protein fiber and sprayed with natural essential oil nanoparticles mixed and prepared from litsea cubeba essential oil, clove essential oil, sage essential oil and basil essential oil.

The utility model has the beneficial effects that:

the natural plant essential oil gas has unique pleasant smell, and meanwhile, the natural plant essential oil has effective inhibition effect on bacteria and fungi such as escherichia coli, staphylococcus aureus, candida albicans and the like, and the two characteristics are combined, so that the psychological and skin discomfort caused by wearing the mask by people is solved.

The product is integrally made of the polylactic acid nano fiber made of the degradable material, so that the pollution of the non-degradable waste mask to the environment is greatly reduced, and meanwhile, the production technology of the polylactic acid fiber is mature and the cost is low.

This product utilizes straw class super absorbent resin fibre water thorn non-woven fabrics layer as the layer that absorbs water and utilizes the soybean protein fiber that moisture permeability is strong to make into close skin layer, can solve the gauze mask and wear produced steam problem for a long time to and humid environment can reduce the electrostatic adsorption effect problem of ordinary gauze mask filter layer to virus particle, has greatly prolonged the live time of gauze mask, facilitates for the use of people's gauze mask, has also reduced a large amount of abandonment problems of gauze mask simultaneously.

The combined action of the bacteriostasis of the polylactic acid fiber and the bacteriostasis of the essential oil ensures that the soybean protein fiber has good moisture permeability and air permeability and also has certain bacteriostasis. The product can prevent the pollutants in the external environment from entering the human body, and simultaneously inhibit the bacteria brought out by the breath of the oral cavity of the human body from growing on the surface of the skin, thereby protecting the health of the skin.

Drawings

FIGS. 1(a) -1 (b) are schematic structural views of the present invention;

FIG. 2 shows the water absorption capacities of different straw-based super absorbent resins in different liquids.

In the figure, 1-a mask main body, 2-an aluminum strip nose clip, 3-an ear hanging line, 4-a waterproof polylactic acid fiber non-woven fabric layer, 5-a filter layer, 6-a super absorbent resin fiber spunlace non-woven fabric layer and 7-an antibacterial skin-friendly layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention are described below clearly and completely, and it is obvious that the described embodiments are some, not all embodiments of the present invention. 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.

Fig. 1(a) -fig. 1(b), a novel fresh antibacterial dehumidification environmental protection gauze mask, by gauze mask main part 1, aluminium strip nose clip 2, 3 three parts of hangers line constitute, gauze mask main part 1 outward appearance both ends are fixed two hangers lines 3 respectively through hot pressing complex. The aluminium strip nose clip 2 is inlayed and is fixed in 1 outward appearance top of gauze mask main part, gauze mask main part 1 includes waterproof polylactic acid fibre non-woven fabrics layer 4, filter layer 5, super absorbent resin fibre spunlace non-woven fabrics layer 6, antibacterial close skin layer 7, 4 rear sides on waterproof polylactic acid fibre non-woven fabrics layer are all around through hot pressing composite fixedly connected with filter layer 5, 5 rear sides on the filter layer all around through hot pressing composite fixedly connected with super absorbent resin fibre spunlace non-woven fabrics layer 6, 6 rear sides on super absorbent resin fibre spunlace non-woven fabrics layer are all around through hot pressing composite fixedly connected with antibacterial close skin layer 7.

Structural functional division of mask

The waterproof polylactic acid fiber non-woven fabric layer 4 is formed by spraying a waterproof material on polylactic acid fiber (polylactic acid fiber) spun-bonded non-woven fabric, so that the reduction of the electrostatic adsorption capacity of the mask caused by the fact that external water vapor enters a filter layer of the mask is prevented.

The filtering layer 5 is made of polylactic acid fiber melt-blown cloth processed by an electret, the polylactic acid fiber has small pores and can effectively and physically filter impurities in the air, and after the electret is processed, the filtering layer has an electrostatic adsorption effect and can adsorb virus particles in the air and prevent the virus particles from entering the respiratory system of a human body.

A high water-absorbent resin fiber spunlace nonwoven fabric layer 6 is prepared by corn straws (corn straw high water-absorbent resin fibers) to prepare the high water-absorbent resin fiber spunlace nonwoven fabric layer 6.

The antibacterial skin-friendly layer 7 is prepared from soybean protein fiber (soybean protein fiber), and is sprayed with natural essential oil nanoparticles prepared by mixing Litsea cubeba essential oil, clove essential oil, Salvia officinalis essential oil, and Ocimum basilicum essential oil, and has antibacterial and skin-friendly effects.

Degradability

Biodegradable materials generally refer to polymeric materials that are ultimately degraded to small molecules or to water and carbon dioxide under natural or other specified processing conditions. The development and application of the petroleum-based oil-based composite material can reduce the dependence of the industry on petroleum-based products and simultaneously avoid the damage to the environment.

Polylactic acid fiber

Polylactic acid (PLA) is a representative variety of biodegradable materials that have been successfully developed and commercialized. PLA is prepared by fermenting crops such as corn, wheat, cassava, beet and the like and organic waste into lactic acid and polymerizing the lactic acid. PLA can be made into PLA fiber after spinning and forming, and is also called as corn fiber because corn is mostly adopted as a raw material. The PLA fiber raw material is from nature, and the product waste can be completely degraded into water and carbon dioxide in the nature, so that other waste is not generated, and the PLA fiber raw material realizes complete natural circulation, and is a fiber material with great development prospect in the 21 st century.

Corn stalk super absorbent resin fiber

The crop straw is used as a huge renewable resource in nature, and has the characteristics of wide source, low cost, biodegradability, high cellulose content and the like. The high water absorption resin is a novel functional high polymer water absorption material which is developed rapidly and has extremely prospect and can absorb water with the mass being hundreds times to thousands times.

Soy protein fiber

The soybean protein fiber is prepared with soybean dregs after oil pressing, and through soaking, separating and purifying spherical protein, adding functional assistant to change the spatial structure of protein, copolymerization and grafting with hydroxyl radical and cyano polymer under proper condition, and wet spinning. The hydroformylation tows are bent, heat-set, cut off and oiled to form the soybean protein fiber for spinning. The production process of the soybean protein fiber has no pollution to the environment, air, human body, soil and water quality, and the production process completely meets the requirement of environmental protection because the used auxiliary materials and auxiliary agents are nontoxic. The production process of the soybean protein fiber does not cause environmental pollution.

Because the main raw material is soybean from nature, the soybean fiber raw material has rich resources, large quantity and reproducibility, and can not cause predatory development to the resources, and the residue left after protein purification can also be used as feed. In addition, because the fiber is mainly composed of soybean protein, the fiber is easy to biodegrade; the fiber has excellent performance and is an ideal raw material for manufacturing high-grade fabrics, underwear and clothes. The development and application of the method can overcome the defects of excessive dependence on petroleum resources, environmental pollution caused by production of a plurality of varieties and the like caused by using a large amount of chemical fibers for a long time, and the comfort level of the textile fibers is improved. Because of this, soybean fiber has received a great deal of attention from the industry and experts as soon as it appears, and is called "healthy and comfortable fiber for the 21 st century".

Water absorption

Corn stalk super absorbent resin fiber

Super Absorbent Resin (SAR) is a novel functional polymer water absorbing material which is rapidly developed and extremely promising, and can absorb water with the mass being hundreds to thousands of times. Because of its extraordinary water absorption property, it can be extensively used in the fields of agriculture and forestry, building, medicine and health and daily life articles. The water-absorbing material has a high-molecular three-dimensional network structure, a large number of hydrophilic functional groups such as carboxyl, hydroxyl and the like form water-absorbing power, absorbs water through two modes of water absorption and swelling, and has good water absorption.

Different crop straws have different compositions, so that the performance of the prepared super absorbent resin has certain difference, and therefore, an optimum crop straw needs to be screened out through experiments. The method selects three most common crop straws which are easy to obtain, namely corn, wheat and sorghum, as raw materials, and compares various performances of the synthesized super absorbent resin.

1) Apparatus and medicine

HH-6 constant temperature water bath (automated instruments and factories in gold Tan City); DHG-9140 electric heating constant temperature air-blast drying oven (shanghai essence macro experimental facilities limited); GJ-3A closed assay sample preparation mill (Gekko Cinese development, Inc.). Corn straw, wheat straw and sorghum straw are collected from the countryside of Chengde city, and are dry, full and pollution-free. Acrylic Acid (AA); acrylamide (AM), all of which were purchased from Mimi Chemicals, Inc., of Tianjin.

2) Experimental methods

Pretreatment of straw

The crop straws are cleaned by clean water and then put into an oven with the temperature of 80 ℃ to be dried to constant weight. Taking out the straws, cutting into pieces, crushing by using a crusher, sieving by using a 100-mesh sieve, soaking for 2 hours by using 10 wt% NaOH solution, performing suction filtration, washing to be neutral by using absolute ethyl alcohol, and drying to be constant weight.

Synthesis of resins

Firstly, weighing a proper amount of pretreated straws, adding the straws into a three-necked bottle, adding a proper amount of distilled water, and stirring the straws in a constant-temperature water bath kettle at the temperature of 80 ℃. And then preparing a monomer solution, neutralizing Acrylic Acid (AA) with a sodium hydroxide solution, adding Acrylamide (AM) and initiator ammonium persulfate into the monomer solution, stirring the mixture to dissolve the Acrylic Acid (AA), reducing the temperature of a water bath to 60 ℃, adding the mixed solution into a three-necked bottle, introducing nitrogen, reacting for 45min, and adding a cross-linking agent until a rod climbing phenomenon occurs. Finally, pouring out the reaction product, placing the reaction product in a 60 ℃ oven to dry to constant weight, taking out and cutting the reaction product into small pieces.

The water absorption capacity was measured by weighing the dried superabsorbent polymer having a mass of M1 on an electronic balance, selecting a 80 mesh filter bag and weighing the weight as M3. And finally calculating the water absorption capacity of the super absorbent resin. The calculation formula of the water absorption capacity Q of the super absorbent resin is as follows:

Q＝(M3-M2-M1)/M1 (1)

3) results and discussion of Water absorption Capacity of different kinds of straw-based superabsorbent resins

As can be seen from FIG. 2, the water absorption capacity of the cornstalk-based superabsorbent resin is the greatest among the different solutions. This is because the experiment uses cellulose as raw material to prepare the super absorbent resin, the more the cellulose content is, the more favorable the formation of the three-dimensional network structure of the resin is, but the crop straws also contain other components such as lignin and hemicellulose, and the phenol unit in the lignin has a certain effect of hindering the polymerization reaction, so that the resin cannot effectively form the network structure, and the resin expansion is hindered. As can be seen from FIG. 2, the water absorption capacity of the straw-based superabsorbent polymer was the greatest in distilled water, and was much smaller in tap water and physiological saline. The reason is that tap water and normal saline contain a large amount of ions, the content of each component of different crop straws is shown in table 1 according to the Flory water absorption formula, and as can be seen from table 1, the content of cellulose in the corn straws is high, and the content of lignin is very low, so that the preparation of the super absorbent resin by using the corn straws is more beneficial to the formation of a three-dimensional network structure, and the water absorption performance is also best.

Water absorption and moisture permeability of soybean protein fiber

1) Test materials

The specification of the fabric is as follows: 28.2X 2/28.2X 2519/276140 two upper and two lower clamps. 3 samples are selected, and the blending ratio is as follows: all the No. 1 samples pass through the weft yarn and are 100% soybean protein fiber yarns; warp and weft yarns of the No. 2 sample are blended yarns of 50% of soybean protein fibers and 50% of cotton fibers; warp and weft yarns of the No. 3 sample are blended yarns of 25 percent of soybean protein fibers and 75 percent of cotton fibers.

2) Moisture permeability test

The test instrument: YG501 type moisture permeable test box

The test method comprises the following steps: the moisture permeation cup method is adopted, and the moisture permeation quantity is calculated according to the change of the mass of a moisture permeation cup (comprising a sample and water) in a certain time, and is generally expressed by WVT.

WVT＝24×Δm/(s×t)

In the formula: WVT-moisture permeability per square meter of fabric in 1 day²d) (ii) a Δ m — the difference (g) between two weights of the same test assembly; s-test area (m) of the sample²) (ii) a t-test time (h).

3) Analysis of moisture permeability

As can be seen from the data in Table 1, the moisture permeability of the pure soybean protein fiber fabric is obviously better than that of the two blended fabrics, and the moisture permeability is reduced along with the reduction of the content of the soybean protein fiber, and the moisture permeability is reduced.

Table 13 results of performance testing of samples

The reasons for the above results may be five: firstly, because the surface of the soybean protein fiber is dehydrated and quickly oriented in the spinning process, a plurality of grooves are longitudinally arranged on the surface of the fiber, so that the surface area of the fiber is increased, the surface adsorption is increased, and the moisture conducting performance, the moisture absorbing performance and the moisture releasing performance of the soybean protein fiber are enhanced; secondly, because the soybean protein fiber contains a large amount of amino, carboxyl, hydroxyl and other hydrophilic groups, the fiber has good moisture absorption performance; thirdly, the soybean protein fiber molecules contain a large amount of polar groups, the fiber core layer is used for conveying, the skin layer is compact, and grooves and micropores are formed in the surface, so that the absorption and the transfer of water are facilitated; fourthly, the soybean protein fiber has more non-crystalline regions, and has more gaps and holes in the fiber, so that water can easily enter, and the moisture absorption and the moisture permeation are easy; fifth, although the cotton fiber also contains a large amount of hydrophilic hydroxyl groups, the specific surface area of the moisture-conducting grooves of the cotton fiber is smaller than that of the grooves formed on the soybean protein fiber, so that the soybean protein fiber has better moisture permeability and moisture conductivity than the cotton fiber.

Bacteriostatic activity

Air is interspersed with a large number of harmful particles. Including dust, various bacteria and tiny viruses, etc., the exhaled air of people also carries water vapor and some bacteria. Bacteria grow and reproduce fast in a moist and sultry environment, and a closed, moist and sultry environment can be formed when the mask is worn for a long time, so that the bacteria remained on the skin and the surface of the mask can proliferate rapidly, skin acne discomfort is caused, and even some skin diseases are induced. But causes the skin to produce bacteria and fungi such as staphylococcus aureus, candida albicans, escherichia coli and the like. Because the drug resistance of bacteria to antibiotics is continuously enhanced, the search for natural and effective bacteriostatic products is very important. The natural plant essential oil has certain bacteriostatic activity, and in order to find the inhibitory action of the four natural plant essential oils on staphylococcus aureus, candida albicans and bacillus megaterium, the following experiments prove that:

soy protein fiber

The related patents prove that the soybean protein fiber adopted by the product is a fiber with bacteriostatic and health-care functions, the soybean functional fiber contains soybean oligosaccharide, soybean saponin, soybean isoflavone and the like which are unique in soybean protein, has inhibitory action on staphylococcus aureus, escherichia coli, candida albicans and other representative bacteria, and simultaneously, the far infrared and negative oxygen ion functions of the soybean fiber also have certain bacteriostatic action.

Natural plant essential oil

Researches show that the plant essential oil has good bacteriostatic effect on plant pathogenic bacteria. Plant essences (Essential oils) are secondary metabolites existing in plant tissues, main chemical components comprise monoterpenes, sesquiterpenes, esters, aldehydes, ketones, alcohols and the like, most of the plant essences are oily liquids at normal temperature, are volatile, and have strong fragrance and smell.

The basil essential oil has sweet smell, and has antibacterial activity on various food-borne bacteria, yeasts and molds. Meanwhile, the oral cleaning liquid also has the functions of cleaning the oral cavity and inhibiting the breeding of bacteria in the oral cavity. In addition, the basil essential oil also has the effects of resisting aging, treating acne and effectively killing skin pathogens causing acne outbreak, so that the basil essential oil can not cause acne muscle users to suffer from acne or aggravate other skin problems when being added into the antibacterial skin-friendly layer 7 of the mask, and can effectively relieve the symptoms of anxiety, fear or tension in the aspects of refreshing, improving dysfunction, stabilizing mood and resisting depression.

The clove essential oil has plant fragrance, can inhibit the growth of bacteria and microorganisms, has no irritation to human mucosal tissues after being diluted, and has good oxidation resistance.

The litsea cubeba essential oil has fragrant smell, has pleasant fragrance and lemon fruit fragrance, has longer fragrance retention time compared with other citrus fragrance, and can often see the figure of the litsea cubeba essential oil in European and American high-end perfume products. Research shows that the litsea cubeba essential oil has objective inhibiting effect on bacillus subtilis, escherichia coli, staphylococcus albus and other bacteria. And the litsea cubeba essential oil has good thermal stability and outstanding oxidation resistance.

The sage essential oil contains the thujone and phenol components, so the sage essential oil has the effects of enhancing the activity of brain cells, enhancing the memory, reducing the blood pressure, preventing diseases such as cold and the like, and has great benefits to human bodies. People often add sage to their food as part of a healthy diet. In addition, the sage essential oil also has good bactericidal effect and is a natural bactericide to be developed.

Experimental materials:

four kinds of plant essential oils such as basil essential oil, clove essential oil, litsea cubeba essential oil, sage essential oil, etc

Strain: escherichia coli, Staphylococcus aureus, and Candida albicans.

Liquid culture medium: 10g of peptone, 15g of NaCl and 15g g of beef extract, adjusting the pH to 7.2 by using 1mol/LNaOH, and fixing the volume to 1000mL by using distilled water.

Solid medium: 2.0% agar powder was added to the liquid medium.

The experimental method comprises the following steps:

strain activation (Staphylococcus aureus, Escherichia coli, Candida albicans)

Common bacterial culture medium (g/ml): 1% of NaCl, 1% of peptone, 0.5% of yeast powder, 2% of agar powder (not added when liquid culture medium is used), pH7.0-7.2, inoculating strains preserved at 4 ℃ according to the inoculation amount of 2%, and performing shake culture at 37 ℃ and 150r/min for 24 h.

Experiment of inhibitory activity of 4 kinds of essential oils on 3 kinds of bacteria

The bacteriostatic activity was determined by a filter paper method. 100ul of activated bacteria liquid is sucked into the cooled solid culture medium and evenly coated. Making circular filter paper sheet with diameter of 6mm with a puncher, sterilizing, soaking in different essential oil solutions for 3min, blow-drying, and placing in culture medium at equal distance with concentration of 0 as control. And (3) culturing at a constant temperature of 37 ℃, wherein if the inhibition zone indicates that the test bacteria have an inhibition effect, and if the inhibition zone does not indicate that the test bacteria have no inhibition effect. Antibacterial activity determination standard: extremely sensitive: the diameter of the bacteriostatic circle is more than 20 mm; high sensitivity: the diameter of the bacteriostatic zone is 15-19 mm; and (3) medium sensitivity: the diameter of the bacteriostatic circle is 10-15 mm; low sensitivity: the diameter of the bacteriostatic zone is less than 10 mm.

Results and discussion

Inhibition zone of four kinds of essential oil on staphylococcus aureus, escherichia coli and candida albicans respectively

The diameters of inhibition zones of four essential oils on staphylococcus aureus, escherichia coli and candida albicans are measured as shown in the following table

TABLE 2 zone of inhibition diameters of four essential oils against three microorganisms

Analysis of results

The bacteriostatic activity of the four essential oils on three microorganisms was detected by a filter paper method, and the results of measuring the diameters of the bacteriostatic zones of the samples are shown in table 1. The data show that the litsea cubeba essential oil and clove essential oil have better antibacterial effect, and the sage essential oil and basil essential oil have poorer antibacterial effect. Therefore, the litsea cubeba essential oil and the clove essential oil can be used as main bacteriostatic agents, the sage and the basil have good fragrance, the health care and relieving functions are excellent, and the litsea cubeba essential oil and the clove essential oil can be used as main raw materials for increasing the aromaticity of the mask. Meanwhile, the odor generated by adding a single essential oil into the antibacterial layer of the mask is single, and the acceptance of the public on the odor is different, so that the four essential oils can be blended according to different proportions, the inhibition effect of the essential oils on microorganisms is improved, the fragrance of the mask can be adjusted, the essential oils can be generally accepted by consumers, and the popularity of products is improved.

Economic benefits

The price cost of the product is estimated to be between 0.75 and 0.85 yuan. Wherein the selling cost of the mask manufacturer is estimated to be about 1.21 yuan. The market price of each mask is estimated to be about 2-3 yuan by the market change sale. The mask can be used for multiple times, so the mask has reasonable price and is easy to be accepted by the market. A common mask factory is expected to produce 5-6 thousands of masks in a day, so the gross profit income of one mask factory in a day is expected to be about 2.53 thousands of RMB. Therefore, the product has great market potential and has objective economic benefit and market prospect.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (5)

1. The utility model provides a novel fresh antibacterial dehumidification environmental protection gauze mask, comprises gauze mask main part, aluminium strip nose clip, hangers line triplex, its characterized in that, the gauze mask main part includes waterproof polylactic acid fibre non-woven fabrics layer, filter layer, super absorbent resin fibre spunlace non-woven fabrics layer, antibacterial close skin layer, waterproof polylactic acid fibre non-woven fabrics layer rear side is all around through the compound fixedly connected with filter layer of hot pressing, the compound fixedly connected with super absorbent resin fibre spunlace non-woven fabrics layer of hot pressing all around of filter layer rear side, super absorbent resin fibre spunlace non-woven fabrics layer rear side is all around through the compound fixedly connected with antibacterial close skin layer of hot pressing.

2. The novel environment-friendly fresh, antibacterial and dehumidifying mask as claimed in claim 1, wherein two ear hanging wires are fixed to two ends of the outer surface of the mask body through hot-pressing compounding, and the aluminum nose clip is fixed above the outer surface of the mask body in an embedded manner.

3. A novel refreshing antibacterial dehumidifying environment-friendly mask as claimed in claim 1 or 2, wherein the waterproof polylactic acid fiber non-woven fabric layer is formed by spraying a waterproof material on a polylactic acid fiber spun-bonded non-woven fabric.

4. A novel refreshing antibacterial dehumidifying environment-friendly mask as claimed in claim 1 or 2, wherein the filter layer is made of polylactic acid fiber meltblown cloth treated by electret.

5. A novel refreshing antibacterial dehumidifying environment-friendly mask as claimed in claim 1 or 2, wherein the spun-laced non-woven fabric layer of super absorbent resin fiber is made of corn stalk super absorbent resin fiber.

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