CN221230198U - Air filter element - Google Patents
Air filter element Download PDFInfo
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- CN221230198U CN221230198U CN202320118598.9U CN202320118598U CN221230198U CN 221230198 U CN221230198 U CN 221230198U CN 202320118598 U CN202320118598 U CN 202320118598U CN 221230198 U CN221230198 U CN 221230198U
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- CN
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- Prior art keywords
- layer
- woven fabric
- filter element
- air
- antiallergic
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- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 87
- 230000003266 anti-allergic effect Effects 0.000 claims abstract description 51
- 238000001914 filtration Methods 0.000 claims abstract description 50
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 35
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 35
- 230000000840 anti-viral effect Effects 0.000 claims abstract description 24
- 239000000835 fiber Substances 0.000 claims abstract description 23
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract description 17
- 239000000126 substance Substances 0.000 claims abstract description 17
- 229920004933 Terylene® Polymers 0.000 claims abstract description 16
- 239000004744 fabric Substances 0.000 claims abstract description 13
- 239000004750 melt-blown nonwoven Substances 0.000 claims abstract description 13
- 239000004743 Polypropylene Substances 0.000 claims abstract description 10
- -1 polypropylene Polymers 0.000 claims abstract description 4
- 229920001155 polypropylene Polymers 0.000 claims abstract description 4
- 229920000728 polyester Polymers 0.000 claims description 19
- 229910052709 silver Inorganic materials 0.000 claims description 11
- 239000004332 silver Substances 0.000 claims description 11
- TUSDEZXZIZRFGC-UHFFFAOYSA-N 1-O-galloyl-3,6-(R)-HHDP-beta-D-glucose Natural products OC1C(O2)COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC1C(O)C2OC(=O)C1=CC(O)=C(O)C(O)=C1 TUSDEZXZIZRFGC-UHFFFAOYSA-N 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 239000001263 FEMA 3042 Substances 0.000 claims description 9
- LRBQNJMCXXYXIU-PPKXGCFTSA-N Penta-digallate-beta-D-glucose Natural products OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-PPKXGCFTSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- LRBQNJMCXXYXIU-NRMVVENXSA-N tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 claims description 9
- 229940033123 tannic acid Drugs 0.000 claims description 9
- 235000015523 tannic acid Nutrition 0.000 claims description 9
- 229920002258 tannic acid Polymers 0.000 claims description 9
- 229920002978 Vinylon Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 39
- 210000000988 bone and bone Anatomy 0.000 abstract description 25
- 241000700605 Viruses Species 0.000 abstract description 14
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- 241000233866 Fungi Species 0.000 abstract description 4
- 239000007789 gas Substances 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 174
- 229910052799 carbon Inorganic materials 0.000 description 17
- 239000000428 dust Substances 0.000 description 11
- 239000000523 sample Substances 0.000 description 11
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 10
- 238000005507 spraying Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 230000000704 physical effect Effects 0.000 description 7
- 229920000742 Cotton Polymers 0.000 description 6
- 239000003443 antiviral agent Substances 0.000 description 5
- 239000003814 drug Substances 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 239000013566 allergen Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229940079593 drug Drugs 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000011045 prefiltration Methods 0.000 description 3
- 229920001817 Agar Polymers 0.000 description 2
- 241000228245 Aspergillus niger Species 0.000 description 2
- 235000018185 Betula X alpestris Nutrition 0.000 description 2
- 235000018212 Betula X uliginosa Nutrition 0.000 description 2
- 241001515917 Chaetomium globosum Species 0.000 description 2
- 241000588724 Escherichia coli Species 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 241000191967 Staphylococcus aureus Species 0.000 description 2
- 241001136494 Talaromyces funiculosus Species 0.000 description 2
- 241000223261 Trichoderma viride Species 0.000 description 2
- 239000008272 agar Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
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- 241000238876 Acari Species 0.000 description 1
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- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 241001236817 Paecilomyces <Clavicipitaceae> Species 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- NEIHULKJZQTQKJ-UHFFFAOYSA-N [Cu].[Ag] Chemical compound [Cu].[Ag] NEIHULKJZQTQKJ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 239000000043 antiallergic agent Substances 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000012258 culturing Methods 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
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- 230000001877 deodorizing effect Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
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- 238000001035 drying Methods 0.000 description 1
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- 239000010419 fine particle Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
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- 238000010438 heat treatment Methods 0.000 description 1
- 241000411851 herbal medicine Species 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
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- 239000005445 natural material Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
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- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
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- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
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- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- WJCNZQLZVWNLKY-UHFFFAOYSA-N thiabendazole Chemical compound S1C=NC(C=2NC3=CC=CC=C3N=2)=C1 WJCNZQLZVWNLKY-UHFFFAOYSA-N 0.000 description 1
- 229960004546 thiabendazole Drugs 0.000 description 1
- 235000010296 thiabendazole Nutrition 0.000 description 1
- 239000004308 thiabendazole Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Abstract
The utility model discloses an air filtering filter element, which comprises a pre-filtering layer 1, a bone material layer 2, an activated carbon layer 3, an antiallergic layer 4 and a melt-blown layer 5, wherein the bone material layer 2 is an antibacterial, mildew-proof and antiviral non-woven fabric layer, the melt-blown layer 5 is a polypropylene fiber or terylene melt-blown non-woven fabric layer, and the thickness of the filter element is 1.0-3.0 mm. The filter element can not only filter harmful gases and tiny particles in the air, but also effectively intercept or eliminate fungus, mould, virus and allergic substances in the air, thereby meeting the more severe use environment and ensuring the good effect of purifying the air.
Description
Technical Field
The utility model relates to an air filter element.
Background
In recent years, with the continuous improvement of the living standard of people, the requirements of people on the indoor environment air quality are also increasing. According to the actual situation, the filter material for purifying the air can be endowed with various functions, such as coloring, antibiosis, mildew resistance, virus resistance, allergy resistance, fragrance, mosquito resistance and the like.
In the prior art, the filter element clamped with the activated carbon particles can only remove solid particles and gas pollutants, and can only be made into a filter main body with single function through post-processing, such as antibacterial, antiviral, antiallergic and the like.
As disclosed in chinese laid-open patent CN 206593280U, an antibacterial air filter core comprises a continuously bent filter body and a frame for fixing the filter body, wherein the filter body is provided with an antibacterial layer capable of resisting bacteria. The air filter core only effectively intercepts or eliminates fungi in the air, but does not intercept or eliminate viruses, fungi and antiallergic substances contained in the air.
As another example, chinese laid-open patent CN112337199a discloses an air conditioner filter core comprising at least two filter layers, which are combined together, the at least two filter layers comprising a filter layer and an antimicrobial layer, the filter layer being at least partially made of meltblown fibers. Although the antibacterial layer is an antibacterial and antiallergic layer, the antibacterial and antiallergic layer has no filtering and purifying effects on viruses and mold substances in the air.
Therefore, a series of demands such as the development of an air purification material with antibacterial, mildew-proof, antiviral and antiallergic functions simultaneously, thereby effectively preventing and controlling the invasion of harmful germs, viruses and allergic substances to human bodies, preventing the inhalation of fine particles, guaranteeing the health, purifying the living environment, improving the living quality and the like have become the development direction in the future.
Disclosure of utility model
The utility model aims to provide an air filter element capable of effectively intercepting and removing bacteria, mould, viruses and allergic substances in air.
The air filtering filter element comprises a pre-filtering layer 1, a bone material layer 2, an active carbon layer 3, an antiallergic layer 4 and a melt-blown layer 5, wherein the bone material layer 2 is an antibacterial, mildew-proof and antiviral non-woven fabric layer, the melt-blown layer 5 is a polypropylene or terylene melt-blown non-woven fabric layer, and the thickness of the filter element is 1.0-3.0 mm.
The pre-filtering layer 1 is preferably a terylene non-woven fabric layer, and the gram weight of the terylene non-woven fabric is preferably 10-80 g/m 2.
The aggregate layer 2 is preferably an antibacterial, mildew-proof and antiviral nonwoven fabric layer coated with silver and/or copper elements.
The antibacterial, mildew-proof and antiviral nonwoven fabric is preferably a chemically bonded nonwoven fabric or a thermally bonded nonwoven fabric.
The grammage of the chemically bonded nonwoven or thermally bonded nonwoven is preferably 50 to 100g/m 2.
The chemically bonded nonwoven fabric or the thermally bonded nonwoven fabric is preferably a nonwoven fabric formed of one or both of vinylon and polyester fibers.
The antiallergic layer 4 is preferably a non-woven fabric layer containing tannic acid.
The antiallergic layer 4 preferably has a gram weight of 30 to 80g/m 2.
The utility model has the beneficial effects that: the air filter element not only has a pre-filtering layer and an active carbon deodorizing layer, but also has an aggregate layer and an antiallergic layer with antibacterial, mildew-proof and antiviral functions, and can filter harmful gases and tiny particles in the air, and can effectively intercept or eliminate fungus, mildew, viruses and allergic substances in the air, thereby meeting the worse use environment and ensuring the good effect of purifying the air.
Drawings
FIG. 1 is a schematic cross-sectional view of an air filter cartridge of the present utility model, wherein 1 is a prefilter layer, 2 is a bone material layer, 3 is an activated carbon layer, 4 is an antiallergic layer, and 5 is a meltblown layer.
Detailed Description
The air filtering filter element comprises a pre-filtering layer 1, a bone material layer 2, an active carbon layer 3, an antiallergic layer 4 and a melt-blown layer 5, wherein the bone material layer 2 is an antibacterial, mildew-proof and antiviral non-woven fabric layer, the melt-blown layer 4 is a polypropylene or terylene melt-blown non-woven fabric layer, and the thickness of the filter element is 1.0-3.0 mm. The pre-filtering layer 1 can be on the windward side, when the purified air flow passes through the filter element, the pre-filtering layer 1 can filter out large particle impurities in the air, and then when the primarily purified air passes through the aggregate layer 2, not only can a part of small particle impurities in the air be filtered out, but also bacteria, mold and viruses in the air can be effectively adsorbed and removed, so that the filtering and purifying capacity can be improved. When the air after the multistage purification passes through the antiallergic layer 4, the layer can filter impurities and effectively remove part of allergen substances, so that the filtering and purifying functions are enhanced. The aggregate layer 2 serves as a filter element main body to play a supporting role, and meanwhile, the integral stiffness and dust holding capacity of the air filter element can be guaranteed, a layer of active carbon layer 3 is clamped in the structures of the pre-filtering layer 1, the aggregate layer 2, the antiallergic layer 4 and the melt-blown layer 5, and the active carbon layer 3 is a porous substance layer, so that gas pollutants in air can be effectively removed, and the filtering and purifying effects are further guaranteed. The activated carbon layer 3 may be provided not only between the aggregate layer 2 and the antiallergic layer 4 but also between the antiallergic layer 4 and the meltblown layer 5. The pre-filtering layer 1, the aggregate layer 2, the activated carbon layer 3, the antiallergic layer 4 and the melt-blown layer 5 are bonded by hot air heating of rubber powder.
The thickness of the filter element is 1.0-3.0 mm, if the thickness of the filter element is less than 1.0mm, the stiffness of the filter material is poor, the pleating body is easy to distort and deform, and dust is easy to penetrate from the coarse pores of the aggregate and is accumulated on the melt-blown non-woven fabric, so that the melt-blown non-woven fabric is blocked, and the service life is influenced; if the thickness of the filter element is greater than 3.0mm, the filter material pressure loss becomes high, the trapping efficiency becomes poor, and the later pleating is not easy to perform.
Considering that the terylene nonwoven fabric can greatly improve the rigidity and dust holding capacity of the filter element, the pre-filtering layer 1 is preferably a terylene nonwoven fabric layer, and the gram weight of the terylene nonwoven fabric is preferably 10-80 g/m 2. In addition, if the gram weight of the terylene nonwoven fabric is too low, dust is easy to penetrate from coarse pores of the prefilter layer, the prefilter effect is reduced, and the filter effect cannot be achieved; if the gram weight of the terylene nonwoven fabric is too high, the whole thickness of the material can be increased, thereby influencing the pleating of the filter element in the later stage.
The aggregate layer 2 is preferably an antibacterial, mildew-proof and antiviral active non-woven fabric layer coated with silver and/or copper elements, and specifically, antibacterial, mildew-proof and antiviral substances are mixed into a solution, if the compatibility of the medicines is poor, the medicines need to be separately processed, and the compatibility between the medicines is considered, so the active layer can be a single layer, a double layer or a three-layer mixed layer. The antibacterial, mildewproof and antiviral solutions are applied to the nonwoven fabric by coating, spraying, padding or immersing, and when the solutions are applied, they may be applied on one side or on both sides, and in view of obtaining the best effect, the two-sided coating is preferable. The antibacterial, mildew-proof and antiviral solution contains thiabendazole, silver and/or silver-copper zeolite, surfactant and other matters, so that the aggregate layer is coated with the antibacterial, mildew-proof and antiviral agent composed of silver and/or copper elements. The air filter element can resist more than 99% of bacteria in the air, particularly can resist more than 99% of staphylococcus aureus in the air, and has an antibacterial rate to escherichia coli of more than 99%; the air filter element can resist more than 99% of viruses in the air, and particularly has antiviral activity rate to influenza A viruses H1N1 and H3N2 of more than 99%; the air filter element can also prevent and inhibit the growth of Aspergillus niger, penicillium funiculosum, paecilomyces variotii, trichoderma viride and Chaetomium globosum in the air, and particularly, the mildew-proof grade of the mildew reaches 0 level.
The aggregate layer 2 is preferably a chemical bonding non-woven fabric layer or a thermal bonding non-woven fabric layer, the non-woven fabric fibers manufactured by adopting a chemical bonding or thermal bonding method are tightly distributed, the rigidity and dust holding capacity of the aggregate can be better ensured, the antibacterial, mildew-proof and antiviral solution is coated on one or two sides of the chemical thermal bonding non-woven fabric or the thermal bonding non-woven fabric in a coating mode, an antibacterial, mildew-proof and antiviral active non-woven fabric layer coated with silver and/or copper elements is formed, and the medicament is firmly coated on the non-woven fabric base fibers of the aggregate layer, so that the safety risk of inhalation caused by falling of functional particles is avoided.
The chemical bond nonwoven layer or the thermal bond nonwoven layer preferably has a gram weight of 50 to 100g/m 2. If the gram weight of the non-woven fabric is too large, the stiffness and dust holding capacity of the filter element are improved, but the integral pressure loss of the filter element is increased, so that the filtering performance of the integral filter element is affected; if the gram weight of the non-woven fabric is too small, on one hand, the antibacterial, mildew-proof and antiviral medicament is difficult to process and adhere to the aggregate, so that the antibacterial, mildew-proof and antiviral properties of the aggregate are affected, and on the other hand, the too small gram weight can greatly reduce the stiffness and dust holding capacity of the filter element, so that the service life of the filter element is affected.
The chemically bonded nonwoven layer or the thermally bonded nonwoven layer is preferably a nonwoven layer formed of one or both of vinylon and polyester fiber. The non-woven fabric is low in price, and the manufactured non-woven fabric is high in rigidity and strength, good in pleating performance, and resistant to pleating at the tops of pleat angles after pleating, and not easy to break, so that a good supporting effect can be provided.
The antiallergic layer 4 is preferably a non-woven fabric layer containing tannic acid. Tannic acid is widely existing in Chinese herbal medicines and plant foods, belongs to natural substances, is basically nontoxic, has small environmental load and excellent antiallergic performance. The antiallergic layer may be applied by coating, spraying, padding or immersing, and when the above solution is applied, it may be applied on one side or on both sides, and it is preferable to apply on both sides in view of obtaining the best effect. The air filter element can resist more than 90% of allergic substances in the air, and particularly, the antiallergic rate of mites, birch and fir reaches more than 90%.
The gram weight of the antiallergic layer 4 is preferably 30-80 g/m 2, and the antiallergic layer is preferably formed by paper-made non-woven fabrics, so that the stiffness of the whole filter element material can be further improved, and the filter element material is more beneficial to later pleating. If the gram weight of the antiallergic layer is too small, the adhesion of the antiallergic agent is affected, so that the antiallergic performance is greatly compromised; if the grammage of the antiallergic layer is too large, the overall thickness of the filter element material is affected, thereby affecting the later pleating of the filter element.
The present utility model is further illustrated by the following examples, but the scope of the present utility model is not limited to the examples, and each physical property parameter in the examples is measured by the following method.
[ Thickness ]
Test material dimensions according to JIS L1021 standard: 200 mm. Times.200 mm, 5 pieces were sampled anywhere using a model SM 114 thickness gauge. Each sample was tested in 5 blocks and the thickness at 25 was measured to obtain an average value.
[ Gram weight ]
Test material dimensions according to JIS L1021 standard: 200 mm. Times.200 mm, the weight was measured by an electronic balance, and the result was converted into a weight of 1m 2, and 5 samples were taken from any place and measured to obtain an average value.
[ Trapping efficiency ]
Placing the flaky filter element on a machine with an opening area of 0.13M 2, fixing, adjusting air with an air quantity of 15M/min to pass through a measuring filter material, then feeding ISO A2 dust with a concentration of 1g/min to a test sample, stopping the experiment when the resistance of the sample rises by 150Pa, weighing the dust weight M1 accumulated on the test sample and the weight M2 of the HEPA filter material, and calculating the trapping efficiency of the filter material, wherein the trapping efficiency is calculated according to the following formula:
Capture efficiency (%) =dust gain M1/(dust gain m1+weight gain of HEPA filter M2) ×100, samples were taken and measured at any 5 places in one sample to be measured, and an average value was obtained.
[ Antibacterial Rate ]
According to the standard of annex B of GB21551.2, antibacterial property test method 2 was used: the absorption method was performed, and the bacterial colony count on the plate culture was measured 24 hours later, sampled and measured at any 3 places in one sample to be measured, and the antibacterial ratio (%) was determined to obtain an average value. Wherein the test strains are staphylococcus aureus and escherichia coli.
[ Mildew-proof rating ]
According to ISO846-2019 standard, testing filter element, pre-treating with 70% ethanol solution, drying, adding spore suspension onto agar medium paved with filter element, culturing in a certain temperature and humidity environment, observing the growth condition of mold on the surface of filter element material on agar medium under a microscope after 28 days, and evaluating the mold growth grade (grade 0: no growth; grade 1: trace growth; grade 2: mild growth (mold growth area 0-25%), grade 3: moderate growth (mold growth area 26-50%), grade 4: severe growth (mold growth area 51-99%; grade 5: severe growth (mold growth area 100%)) wherein mold strain is Aspergillus niger, penicillium funiculosum, paecilomyces varioti, trichoderma viride, and Chaetomium globosum, sampling and measuring at any 2 places in one filter element to be measured, obtaining average value.
[ Antiviral Rate ]
The sample was sterilized by irradiation with an ultraviolet lamp prior to testing, using influenza A virus H1N1 (ATCC VR-1469) as the virus solution and MDCK cells as the host cells, as determined according to ISO 18184:2019. When the test is carried out, the sample is firstly contacted with virus liquid for infection for 24 hours, then the virus liquid is removed, virus maintenance culture is added for inoculation incubation under a certain condition, and the logarithmic value of the virus titer is calculated according to the presence or absence of CPE (cell denaturation effect). And obtaining an antiviral activity value of the sample according to the comparison of the control sample, and finally calculating the antiviral activity rate (%). Any 2 places in one sample to be measured were sampled and measured to obtain an average value.
[ Antiallergic Rate ]
The allergen used was birch pollen as measured according to the GB/T21551.2-2010 annex B standard, and the residual allergen concentration was measured after 24 hours of reaction, whereby the allergen removal rate (%) was calculated. Any 2 places in one sample to be measured were sampled and measured to obtain an average value.
Example 1
The utility model relates to an air filtering filter element, which comprises a pre-filtering layer 1, a bone material layer 2, an active carbon layer 3, an antiallergic layer 4 and a melt-blown layer 5, wherein the pre-filtering layer 1 is polyester non-woven fabric filter cotton with the gram weight of 40g/m 2, the bone material layer 2 is thermal bonding non-woven fabric with the gram weight of 80g/m 2 made of polyester fibers, the thermal bonding non-woven fabric is non-woven fabric coated with antibacterial, mildewproof and antiviral agents of silver and copper elements in a padding mode, the antiallergic layer 4 is non-woven fabric with the gram weight of 60g/m 2 made of polyester fibers, the non-woven fabric is non-woven fabric coated with tannic acid in a padding mode, the melt-blown layer 5 is PP melt-blown non-woven fabric, the active carbon layer 3 is arranged between the bone material layer 2 and the antiallergic layer 4, and the thickness of the filter element is measured to be 2.5mm, and physical properties of the air filtering filter element are shown in table 1.
Example 2
The utility model relates to an air filtering filter element, which comprises a pre-filtering layer 1, a bone material layer 2, an active carbon layer 3, an antiallergic layer 4 and a melt-blown layer 5, wherein the pre-filtering layer 1 is polyester non-woven fabric filter cotton with the gram weight of 30g/m 2, the bone material layer 2 is thermal bonding non-woven fabric with the gram weight of 80g/m 2 made of polyester fibers, the thermal bonding non-woven fabric is non-woven fabric coated with antibacterial, mildewproof and antiviral agents of silver and copper elements in a padding mode, the antiallergic layer 4 is paper non-woven fabric with the gram weight of 60g/m 2 made of polyester fibers, the paper non-woven fabric is non-woven fabric coated with tannic acid in a padding mode, the melt-blown layer 5 is PP melt-blown non-woven fabric, the active carbon layer 3 is arranged between the antiallergic layer 4 and the melt-blown layer 5, and the thickness of the measured filter element is 2.2mm, and physical properties of the air filtering filter element are shown in a table 1.
Example 3
The utility model relates to an air filtering filter element, which comprises a pre-filtering layer 1, a bone material layer 2, an active carbon layer 3, an antiallergic layer 4 and a melt-blown layer 5, wherein the pre-filtering layer 1 is polyester non-woven fabric filter cotton with the gram weight of 30g/m 2, the bone material layer 2 is paper non-woven fabric with the gram weight of 65g/m 2 made of polyester fiber and vinylon fiber, the paper non-woven fabric is non-woven fabric coated with antibacterial, mildew-proof and antiviral liquid of silver element in a spraying mode, the antiallergic layer 4 is paper non-woven fabric with the gram weight of 60g/m 2 made of polyester fiber, the paper non-woven fabric is non-woven fabric coated with tannic acid in a spraying mode, the melt-blown layer 5 is PP melt-blown non-woven fabric, the active carbon layer 3 is arranged between the antiallergic layer 4 and the melt-blown layer 5, and the thickness of the measured filter element is 2.0 mm.
Example 4
The utility model relates to an air filtering filter element, which comprises a pre-filtering layer 1, a bone material layer 2, an active carbon layer 3, an antiallergic layer 4 and a melt-blown layer 5, wherein the pre-filtering layer 1 is terylene non-woven fabric filter cotton with the gram weight of 40g/m 2, the bone material layer 2 is paper non-woven fabric with the gram weight of 65g/m 2 made of terylene fiber and vinylon fiber, the paper non-woven fabric is non-woven fabric coated with antibacterial, mildew-proof and disease-resistant liquid containing silver and copper elements in a spraying mode, the antiallergic layer 4 is paper non-woven fabric with the gram weight of 60g/m 2 made of terylene fiber, the paper non-woven fabric is non-woven fabric coated with tannic acid in a spraying mode, the melt-blown layer 5 is PP melt-blown non-woven fabric, the active carbon layer 3 is arranged between the antiallergic layer 4 and the melt-blown layer 5, and the thickness of the filter element is measured to be 2.1mm, and the physical properties of the air filtering filter element are shown in table 1.
Example 5
The utility model relates to an air filtering filter element, which comprises a pre-filtering layer 1, a bone material layer 2, an active carbon layer 3, an antiallergic layer 4 and a melt-blown layer 5, wherein the pre-filtering layer 1 is polyester non-woven fabric filter cotton with the gram weight of 40g/m 2, the bone material layer 2 is thermal bonding non-woven fabric with the gram weight of 80g/m 2 made of polyester fibers, the thermal bonding non-woven fabric is non-woven fabric coated with antibacterial, mildew-proof and antiviral agents of silver and copper elements in a spraying mode, the antiallergic layer 4 is paper-made non-woven fabric with the gram weight of 60g/m 2 made of polyester fibers, the paper-made non-woven fabric is non-woven fabric coated with tannic acid in a spraying mode, the melt-blown layer 5 is PET melt-blown non-woven fabric, the active carbon layer 3 is arranged between the bone material layer 2 and the antiallergic layer 4, and the thickness of the filter element is measured to be 2.2mm, and the physical properties of the air filtering filter element are shown in table 1.
Example 6
The utility model relates to an air filter element, which comprises a pre-filtering layer 1, a bone material layer 2, an active carbon layer 3, an antiallergic layer 4 and a melt-blown layer 5, wherein the pre-filtering layer 1 is polyester non-woven fabric filter cotton with the gram weight of 40g/m 2, the bone material layer 2 is thermal bonding non-woven fabric with the gram weight of 80g/m 2 made of polyester fibers, the thermal bonding non-woven fabric is non-woven fabric coated with antibacterial, mildewproof and antiviral agents of quaternary ammonium salt in a padding mode, the antiallergic layer 4 is paper non-woven fabric with the gram weight of 60g/m 2 made of polyester fibers, the melt-blown layer 5 is PP melt-blown non-woven fabric, the active carbon layer 3 is arranged between the bone material layer 2 and the antiallergic layer 4, the thickness of the filter element is measured to be 2.4mm, and physical properties of the air filter element are shown in table 1.
Comparative example 1
An air filtration filter element comprises a bone material layer, an activated carbon layer and a melt-blown layer, wherein the bone material layer is a thermal bonding non-woven fabric which is made of polyester fibers and has the gram weight of 80g/m 2, the melt-blown layer is a PP melt-blown non-woven fabric, the activated carbon layer is arranged between the bone material layer and the melt-blown layer, the thickness of the filter element is measured to be 1.6mm, and the physical properties of the filter element are shown in table 1.
TABLE 1
Claims (8)
1. The air filter core, its characterized in that: the filter element comprises a pre-filtering layer (1), an aggregate layer (2), an activated carbon layer (3), an antiallergic layer (4) and a melt-blown layer (5), wherein the aggregate layer (2) is an antibacterial mildew-proof and antiviral non-woven fabric layer, the melt-blown layer (5) is a polypropylene fiber or terylene melt-blown non-woven fabric layer, the thickness of the filter element is 1.0-3.0 mm, the pre-filtering layer (1), the aggregate layer (2), the antiallergic layer (4) and the melt-blown layer (5) are sequentially arranged in the air flow direction, and the activated carbon layer (3) is positioned between the aggregate layer (2) and the antiallergic layer (4) or between the antiallergic layer (4) and the melt-blown layer (5).
2. An air filtration cartridge according to claim 1 wherein: the pre-filtering layer (1) is a terylene non-woven fabric layer, and the gram weight of the terylene non-woven fabric is 10-80 g/m 2.
3. An air filtration cartridge according to claim 1 wherein: the aggregate layer (2) is an antibacterial, mildew-proof and antiviral non-woven fabric layer coated with silver and/or copper elements.
4. An air filtration cartridge according to claim 1 or 3 wherein: the antibacterial, mildew-proof and antiviral non-woven fabric is a chemical bonding non-woven fabric or a thermal bonding non-woven fabric.
5. An air filtration cartridge according to claim 4 wherein: the gram weight of the chemical bonding non-woven fabric or the thermal bonding non-woven fabric is 50-100 g/m 2.
6. An air filtration cartridge according to claim 4 wherein: the chemical bonding non-woven fabric or the thermal bonding non-woven fabric is non-woven fabric formed by one or two of vinylon and polyester fiber.
7. An air filtration cartridge according to claim 1 wherein: the antiallergic layer (4) is a non-woven fabric layer containing tannic acid.
8. An air filtration cartridge according to claim 1 wherein: the gram weight of the antiallergic layer (4) is 30-80 g/m 2.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2022201476725 | 2022-01-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221230198U true CN221230198U (en) | 2024-06-28 |
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