CN113455758A - Mask for removing volatile organic compounds - Google Patents
Mask for removing volatile organic compounds Download PDFInfo
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- CN113455758A CN113455758A CN202110763284.XA CN202110763284A CN113455758A CN 113455758 A CN113455758 A CN 113455758A CN 202110763284 A CN202110763284 A CN 202110763284A CN 113455758 A CN113455758 A CN 113455758A
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- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 13
- 239000010410 layer Substances 0.000 claims abstract description 110
- 238000000746 purification Methods 0.000 claims abstract description 45
- 239000011241 protective layer Substances 0.000 claims abstract description 20
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 17
- WHGYBXFWUBPSRW-FOUAGVGXSA-N beta-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO WHGYBXFWUBPSRW-FOUAGVGXSA-N 0.000 claims abstract description 14
- 238000010521 absorption reaction Methods 0.000 claims abstract description 13
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- 239000011425 bamboo Substances 0.000 claims abstract description 12
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- 239000000463 material Substances 0.000 claims abstract description 9
- 229920002635 polyurethane Polymers 0.000 claims abstract description 8
- 239000004814 polyurethane Substances 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 24
- 239000000835 fiber Substances 0.000 claims description 16
- 230000003115 biocidal effect Effects 0.000 claims description 10
- 239000004745 nonwoven fabric Substances 0.000 claims description 7
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- 229920000858 Cyclodextrin Polymers 0.000 abstract description 6
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- 235000011175 beta-cyclodextrine Nutrition 0.000 abstract description 6
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 1
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- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 2
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- 206010020751 Hypersensitivity Diseases 0.000 description 2
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- 208000026935 allergic disease Diseases 0.000 description 2
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- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 244000052616 bacterial pathogen Species 0.000 description 2
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- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
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- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
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- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 244000061176 Nicotiana tabacum Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 1
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- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000007539 photo-oxidation reaction Methods 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
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- 238000004062 sedimentation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1161—Means for fastening to the user's head
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1192—Protective face masks, e.g. for surgical use, or for use in foul atmospheres with antimicrobial agent
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/02—Layered materials
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/12—Hygroscopic; Water retaining
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/14—Air permeable, i.e. capable of being penetrated by gases
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/26—Electrically protective, e.g. preventing static electricity or electric shock
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/30—Antimicrobial, e.g. antibacterial
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2500/00—Materials for garments
- A41D2500/30—Non-woven
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention discloses a mask for removing volatile organic compounds, which comprises a main purification layer, wherein a main filter layer is sewn on the front surface of the main purification layer, a first secondary purification layer is sewn on the front surface of the main filter layer, a first antibacterial layer is sewn on the front surface of the first secondary purification layer, a first protective layer is sewn on the front surface of the first antibacterial layer, and a second secondary purification layer is sewn on the back surface of the first main purification layer. This clear away gauze mask of volatile organic compounds, the inferior layer that purifies through the main filter layer of bamboo charcoal fiber material and active carbon material carries out prefilter to the air, the main layer that purifies that adopts beta-cyclodextrin to constitute of adopting again purifies the high efficiency of layer and clears away the content of polycyclic aromatic hydrocarbon in the burning flue gas and reach air-purifying, improve the quality that the environment of working inhaled the air, the moisture absorption layer of polyurethane sponge material breathes the steam absorption that produces with the human body, make its inferior purification layer two with the active carbon material react, and get rid of the peculiar smell in the air, make the workman can breathe more comfortable air.
Description
Technical Field
The invention relates to the technical field of labor protection, in particular to a mask for removing volatile organic compounds.
Background
Polycyclic aromatic hydrocarbons in the environment mainly come from the combustion of coal and petroleum, the generation amount of the polycyclic aromatic hydrocarbons is related to factors such as combustion equipment and combustion temperature, for example, the generation amount of a large-scale boiler is low, the generation amount of a household coal furnace is high, the polycyclic aromatic hydrocarbons are volatile hydrocarbon compounds generated when organic matters such as coal, petroleum, wood, tobacco and organic high molecular compounds are incompletely combusted, the polycyclic aromatic hydrocarbons are important environmental and food pollutants, hydrocarbon compounds containing more than two benzene rings in molecules comprise more than 150 compounds such as naphthalene, anthracene, phenanthrene and pyrene, some polycyclic aromatic hydrocarbons also contain nitrogen, sulfur and cyclopentane, most common polycyclic aromatic hydrocarbons with carcinogenic effect are condensed ring compounds of four to six rings, the conventional physical method for removing the polycyclic aromatic hydrocarbons comprises a heating method, a coagulating sedimentation method and an adsorption method, and the chemical method comprises two types of photo-oxidation and chemical agent oxidation, and a biochemical treatment method.
In a combustion test or a place with serious air pollution, carcinogenic substances in smoke generated by combustion in part of special fields (such as coal, petroleum and garbage incineration) are various and high in content and difficult to remove, and a common mask cannot effectively filter the smoke, so that the health of workers is greatly damaged.
Disclosure of Invention
The invention aims to provide a mask for removing volatile organic compounds, which aims to solve the problems that in a combustion test or a place with serious air pollution, in the background technology, the types of carcinogenic substances in smoke generated by combustion in part of special fields (coal, petroleum, garbage incineration and the like) are various, the content is high, the smoke is difficult to remove, and a common mask cannot effectively filter the smoke, so that the health of workers is greatly damaged.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a clear away gauze mask of volatile organic compounds, purifies the layer including main, main front that purifies the layer has sewed up main filter layer, the front of main filter layer has sewed up inferior purification layer one, inferior purification layer one front has sewed up antibiotic layer one, the inoxidizing coating one has sewed up in antibiotic layer one front, main back that purifies layer one has sewed up inferior purification layer two, inferior purification layer two back has sewed up antibiotic layer two, the hygroscopic layer has sewed up at the back of antibiotic layer two, the inoxidizing coating two has sewed up at the back of hygroscopic layer, the banding has been sewed up in the outside of inoxidizing coating two and inoxidizing coating one, the both sides bonding of banding has the elastic cord, main purification layer is the beta-CD film.
Preferably, the main filter layer is made of bamboo charcoal fiber, the bamboo charcoal fiber is made of bamboo as a raw material through a new calcining process and a new technology of pure oxygen high temperature and nitrogen blocking delay, and the bamboo charcoal fiber has the characteristics of moisture absorption, ventilation, bacteriostasis, antibiosis, warmness in winter and coolness in summer, greenness, environmental protection and the like due to the unique fiber structure design.
Preferably, the first secondary purification layer and the second secondary purification layer are made of activated carbon, the adsorbability of the activated carbon is derived from a unique molecular structure, the activated carbon has a plurality of pores inside, and if the pores inside each gram of the activated carbon are spread out, the pores can reach five hundred to one thousand seven hundred square meters, which is the unique internal structure, so that the activated carbon has excellent adsorption capacity and can effectively filter and purify polluted air.
Preferably, the first antibacterial layer and the second antibacterial layer are made of tencel fibers, so that the fabric has the characteristics of moisture permeability, bacteriostasis, environmental friendliness, allergy prevention, static prevention and the like, raw materials are wood, the manufacturing process is pollution-free, and the product is biodegradable and is the most typical environment-friendly fiber fabric.
Preferably, the moisture absorption layer is made of polyurethane sponge, and the polyurethane sponge can filter pollutants such as large particulate matters and dust, can efficiently adsorb micro-filtration dust and germs, and can absorb water vapor generated by human breath.
Preferably, the first protective layer and the second protective layer are made of medical non-woven fabrics, the medical non-woven fabrics are medical and sanitary textiles made of chemical fibers including polyester, polyamide, polytetrafluoroethylene, polypropylene, carbon fibers and glass fibers, and the medical non-woven fabrics have the characteristics of high bacteria and dust filtering performance, low surgical infection rate, convenience in disinfection and sterilization, easiness in compounding with other materials and the like.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the mask for removing the volatile organic compounds, the air is preliminarily filtered through the main filtering layer made of the bamboo charcoal fiber material and the secondary purifying layer made of the activated carbon material, and then the content of polycyclic aromatic hydrocarbon in combustion smoke is efficiently removed through the main purifying layer (beta-CD film) made of beta-cyclodextrin to purify the air, so that the quality of air sucked in the working environment is improved.
2. This clear away gauze mask of volatile organic compounds, the moisture absorption layer of polyurethane sponge material absorbs the steam that the human breathing produced, makes it and the inferior purification layer two of active carbon material react to get rid of the peculiar smell in the air, make the workman can breathe more comfortable air.
Drawings
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic sectional view of the present invention;
FIG. 4 is a schematic view of the structure of part A in FIG. 3 according to the present invention.
In the figure: 1. a primary purification layer; 2. a main filtration layer; 3. a first secondary purification layer; 4. an antibacterial layer I; 5. a first protective layer; 6. a second secondary purification layer; 7. a second antibacterial layer; 8. a moisture-absorbing layer; 9. a second protective layer; 10. sealing edges; 11. and (4) elastic bands.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, there are shown schematic diagrams of a mask for removing volatile organic compounds according to an embodiment of the present invention.
As can be seen from the figure, the mask for removing volatile organic compounds mainly comprises a main purification layer 1, a main filter layer 2, a secondary purification layer one 3, an antibacterial layer one 4, a first protective layer 5, a second secondary purification layer 6, a second antibacterial layer 7, a moisture absorption layer 8, a second protective layer 9, a sealing edge 10 and an elastic band 11.
The front side of the main purification layer 1 is sewed with a main filter layer 2, the front side of the main filter layer 2 is sewed with a first secondary purification layer 3, the front side of the first secondary purification layer 3 is sewed with a first antibacterial layer 4, the front side of the first antibacterial layer 4 is sewed with a first protective layer 5, the back side of the first main purification layer 1 is sewed with a second secondary purification layer 6, the back side of the second secondary purification layer 6 is sewed with a second antibacterial layer 7, the back side of the second antibacterial layer 7 is sewed with a moisture absorption layer 8, the back side of the moisture absorption layer 8 is sewed with a second protective layer 9, the outer sides of the second protective layer 9 and the first protective layer 5 are sewed with edge seals 10, elastic bands 11 are adhered to two sides of the edge seals 10, and the main purification layer 1 is a beta-CD film.
The beta-CD film is based on beta-cyclodextrin. The beta-cyclodextrin adopted in the scheme is composed of seven glucose molecules, has a space conical spiral structure, and has a cup-shaped structure with a hydrophilic outer layer and a hydrophobic inner cavity. The cavity of the device can contain various organic molecules and can form a clathrate compound with polycyclic aromatic hydrocarbon, so that PAHs (polycyclic aromatic hydrocarbon compounds) generated by various combustion products can be effectively absorbed, and organic matters such as polycyclic aromatic hydrocarbon and the like can be effectively prevented from entering a respiratory system.
Preferably, the beta-CD film is used at a concentration of 10%-5～10-2The beta-cyclodextrin film is made into a film shape and placed in the mask, polycyclic aromatic hydrocarbon in smoke pollution gas can be effectively filtered, through tests, the removal rate of the formed beta-CD film on organic matters such as polycyclic aromatic hydrocarbon can reach 90 percent as a replacement scheme, the scheme can make the beta-cyclodextrin into filling glue and fill the filling glue between the main filter layer 2 and the secondary purification layer 3, and the purification and filtration effects can be achieved.
Furthermore, the main filter layer 2 is made of bamboo charcoal fiber, the bamboo charcoal fiber is made of bamboo as a raw material through a new calcining process and a new technology of pure oxygen high temperature and nitrogen blocking delay, and the bamboo charcoal fiber has the characteristics of moisture absorption, ventilation, bacteriostasis, antibiosis, warmness in winter and coolness in summer, greenness, environmental protection and the like due to the unique fiber structure design.
Furthermore, the first secondary purification layer 3 and the second secondary purification layer 6 are made of activated carbon, the adsorbability of the activated carbon is derived from a unique molecular structure, the activated carbon is internally provided with a plurality of pores, and if the internal pores of each gram of the activated carbon are spread out, the internal pores can reach five hundred to one thousand seven hundred square meters, which is the unique internal structure, so that the activated carbon has excellent adsorption capacity and can effectively filter and purify polluted air.
Furthermore, the first antibacterial layer 4 and the second antibacterial layer 7 are made of tencel fibers, so that the fabric has the characteristics of moisture permeability, bacteriostasis, environmental protection, allergy prevention, static prevention and the like, raw materials are wood, the manufacturing process is pollution-free, and the product is biodegradable and is the most typical green environment-friendly fiber fabric.
Furthermore, the material of the moisture absorption layer 8 is polyurethane sponge, and the polyurethane sponge can filter pollutants such as large particulate matters and dust, and efficiently adsorb micro-filtration dust and germs, and absorb the water vapor generated by human respiration.
Furthermore, the first protective layer 5 and the second protective layer 9 are made of medical non-woven fabrics, the medical non-woven fabrics are medical and sanitary textiles made of chemical fibers including polyester, polyamide, polytetrafluoroethylene, polypropylene, carbon fibers and glass fibers, and have the characteristics of high bacteria and dust filtering performance, low surgical infection rate, convenience in disinfection and sterilization, easiness in compounding with other materials and the like.
When the mask for removing the volatile organic compounds is worn and used, when a wearer (such as a worker) breathes, bacteria and dust are firstly primarily filtered by a protective layer one 5 made of a medical non-woven fabric material, then the bacteria and the dust are filtered again by an antibacterial layer one 4 made of tencel fiber material, then inhaled air pollutants are primarily purified by a secondary purification layer one 3 made of active carbon material, then the air is filtered and purified again by a main filter layer 2 made of bamboo charcoal fiber material, finally polycyclic aromatic hydrocarbon in the air is purified by a film-shaped main purification layer 1 made of beta-CD, and water vapor generated by breathing of a human body is absorbed by a moisture absorption layer 8 made of polyurethane sponge material, so that the moisture absorption layer reacts with a secondary purification layer two 6 made of the active carbon material, and peculiar smell in the air is removed.
Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. A mask for removing volatile organic compounds comprises a main purification layer (1), and is characterized in that: the front of main purification layer (1) has sewed up main filter layer (2), the front of main filter layer (2) has sewed up time purification layer (3), the front of time purification layer (3) has sewed up antibiotic layer (4), the front of antibiotic layer (4) has sewed up protective layer (5), the back of main purification layer (1) has sewed up time purification layer two (6), the back of time purification layer two (6) has sewed up antibiotic layer two (7), the back of antibiotic layer two (7) has sewed up hygroscopic layer (8), the back of hygroscopic layer (8) has sewed up protective layer two (9), the outside of protective layer two (9) and protective layer one (5) has sewed up banding (10), the both sides bonding of banding (10) has elastic cord (11), main purification layer (1) is the beta-CD film.
2. The mask according to claim 1, wherein the mask comprises: the main filter layer (2) is made of bamboo charcoal fibers.
3. The mask according to claim 1, wherein the mask comprises: the material of the first secondary purification layer (3) and the second secondary purification layer (6) is activated carbon.
4. The mask according to claim 1, wherein the mask comprises: the first antibacterial layer (4) and the second antibacterial layer (7) are made of tencel fibers.
5. The mask according to claim 1, wherein the mask comprises: the moisture absorption layer (8) is made of polyurethane sponge.
6. The mask according to claim 1, wherein the mask comprises: the first protective layer (5) and the second protective layer (9) are made of medical non-woven fabrics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110763284.XA CN113455758A (en) | 2021-07-06 | 2021-07-06 | Mask for removing volatile organic compounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110763284.XA CN113455758A (en) | 2021-07-06 | 2021-07-06 | Mask for removing volatile organic compounds |
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| Publication Number | Publication Date |
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| CN202110763284.XA Pending CN113455758A (en) | 2021-07-06 | 2021-07-06 | Mask for removing volatile organic compounds |
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| CN210747404U (en) * | 2019-10-17 | 2020-06-16 | 张家港市美洁日用品有限公司 | Plane type antibacterial mask |
| CN212088213U (en) * | 2020-02-24 | 2020-12-08 | 肇庆涞馨美体内衣有限公司 | Mask capable of improving filtering performance |
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| CN1522787A (en) * | 2003-09-05 | 2004-08-25 | �Ϻ���ͨ��ѧ | Method of removing polycyclic arene from gas phase |
| US20150031532A1 (en) * | 2012-03-13 | 2015-01-29 | Amphidex A/S | Production Of Stabilized Channel Type Cyclodextrin Crystals |
| CN105821493A (en) * | 2015-01-27 | 2016-08-03 | 粘誉薰 | Method for preparing composite nanofiber, composite nanofiber prepared by method, filter layer body and mask with filter layer body |
| CN210747404U (en) * | 2019-10-17 | 2020-06-16 | 张家港市美洁日用品有限公司 | Plane type antibacterial mask |
| CN212088213U (en) * | 2020-02-24 | 2020-12-08 | 肇庆涞馨美体内衣有限公司 | Mask capable of improving filtering performance |
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