CN220236121U - High-efficient ultralow resistance KN95 gauze mask - Google Patents
High-efficient ultralow resistance KN95 gauze mask Download PDFInfo
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- CN220236121U CN220236121U CN202320395844.5U CN202320395844U CN220236121U CN 220236121 U CN220236121 U CN 220236121U CN 202320395844 U CN202320395844 U CN 202320395844U CN 220236121 U CN220236121 U CN 220236121U
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- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 90
- 238000001914 filtration Methods 0.000 claims abstract description 45
- 229920000742 Cotton Polymers 0.000 claims abstract description 13
- 239000004744 fabric Substances 0.000 claims abstract description 11
- 239000004750 melt-blown nonwoven Substances 0.000 claims abstract description 11
- 239000004743 Polypropylene Substances 0.000 claims description 18
- -1 polypropylene Polymers 0.000 claims description 18
- 229920001155 polypropylene Polymers 0.000 claims description 18
- 239000000835 fiber Substances 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 9
- 210000005069 ears Anatomy 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920006149 polyester-amide block copolymer Polymers 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000000443 aerosol Substances 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 2
- 230000000241 respiratory effect Effects 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000029058 respiratory gaseous exchange Effects 0.000 description 4
- 230000004927 fusion Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000711573 Coronaviridae Species 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 206010040007 Sense of oppression Diseases 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model discloses a high-efficiency ultralow-resistance KN95 mask, which comprises a mask body, wherein elastic ear belts are fixedly arranged on two sides of the mask body; the mask body is also provided with a nose bridge strip; the mask body comprises a first non-woven fabric layer, a second non-woven fabric layer, a third non-woven fabric layer and a fourth non-woven fabric layer which are sequentially arranged; the first non-woven fabric layer and the fourth non-woven fabric layer are spun-bonded non-woven fabrics, the second non-woven fabric layer is electrostatic cotton non-woven fabrics, and the third non-woven fabric layer is melt-blown non-woven fabrics; the fourth non-woven fabric layer is close to one side of the user. The mask body adopts a four-layer structure, has the characteristic of high filtering efficiency, can effectively filter aerosol particles, and simultaneously, the respiratory resistance is far lower than the requirements of national standard GB2626-2019 on KN95 (the filtering efficiency is more than or equal to 95.0 percent, and the inhalation and exhalation resistances are less than or equal to 210 Pa), has the advantages of high efficiency and ultralow resistance, and can be well applied to the field of personal hygiene protection.
Description
Technical Field
The utility model relates to a high-efficiency ultralow-resistance KN95 mask, and belongs to the technical field of protective mask preparation.
Background
With the comprehensive opening of new epidemic situations at home and abroad, the personal protective article mask becomes epidemic prevention materials urgently needed by people, and the wearing of the mask in daily life, especially in public places, also becomes the subjective behavior of everyone at present. The mask can effectively block and adsorb various harmful substances such as viruses, bacteria, dust, smog and the like, thereby having the function of preventing the occurrence and infection of respiratory diseases. The KN95 mask is used as one of the masks, has a larger number of non-woven fabric filtering layers and a better fitting structure with cheeks compared with a plane mask, has higher filtering efficiency, can effectively block new coronaviruses transmitted through aerosol, and is widely favored by people.
However, the KN95 mask on the market at present can meet the requirements of GB2626-2019 breathing protection self-priming filtration type particulate matter prevention respirator (the filtration efficiency is more than or equal to 95.0%, and the inhalation and exhalation resistances are less than or equal to 210 Pa), but the filtration efficiency and the filtration resistance still can not meet the requirements of people on the high efficiency and the low resistance of the mask. The filtration efficiency and the filtration resistance are two proportional physical quantities, and when the filtration efficiency increases, the filtration resistance increases. The increased resistance can cause people to feel oppression and dizziness when wearing the mask, even cause hypoxia, and harm the physical health of people when serious. For this reason, new materials and technical methods are needed to improve the filtration efficiency of KN95 masks, while having lower filtration resistance.
Disclosure of Invention
In order to overcome the defects in the KN95 application technology, the utility model provides the high-efficiency ultralow-resistance KN95 mask, which optimizes the filtration efficiency of KN95 and has the advantage of ultralow resistance.
In order to solve the technical problems, the aim of the utility model is realized as follows:
the utility model relates to a high-efficiency ultralow-resistance KN95 mask, which comprises a mask body, wherein elastic ear belts are fixedly arranged on two sides of the mask body and are used for being hooked on ears of a user; the mask body is also provided with a nose bridge strip;
the mask body comprises a first non-woven fabric layer, a second non-woven fabric layer, a third non-woven fabric layer and a fourth non-woven fabric layer which are sequentially arranged; the first non-woven fabric layer and the fourth non-woven fabric layer are spun-bonded non-woven fabrics, the second non-woven fabric layer is electrostatic cotton non-woven fabrics, and the third non-woven fabric layer is melt-blown non-woven fabrics; the fourth non-woven fabric layer is close to one side of the user.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the elastic ear belt is fixed with the first nonwoven fabric layer or the fourth nonwoven fabric layer by ultrasonic welding.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the nose bridge strip is fixed between the second non-woven fabric layer and the third non-woven fabric layer.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the material of the spun-bonded non-woven fabric comprises one of polypropylene, polyester and polyamide.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the gram weight of the spun-bonded non-woven fabric is 10-80g/m 2 The thickness is 0.05-0.65mm.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the gram weight of the electrostatic cotton non-woven fabric is 40-120g/m 2 The thickness is 0.7-1.5mm, the filtering efficiency is more than or equal to 80%, and the filtering resistance is less than or equal to 10Pa.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the gram weight of the melt-blown non-woven fabric is 10-40g/m 2 The thickness is 0.1-0.5mm, the filtering efficiency is more than or equal to 90%, and the filtering resistance is less than or equal to 30Pa.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the filtering efficiency of the high-efficiency ultralow-resistance KN95 mask is more than or equal to 99%.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the filtration resistance of the high-efficiency ultralow-resistance KN95 mask is less than or equal to 60Pa.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the resistance of inhalation and exhalation of the high-efficiency ultralow-resistance KN95 mask is less than or equal to 60Pa.
The beneficial effects of the utility model are as follows: the high-efficiency ultralow-resistance KN95 mask provided by the utility model has the advantages that the mask body adopts a four-layer structure comprising spun-bonded non-woven fabrics, melt-blown non-woven fabrics and electrostatic cotton non-woven fabrics, the filter efficiency is high, aerosol particles can be effectively filtered, meanwhile, the respiratory resistance is far lower than the requirements of national standard GB2626-2019 on KN95 (the filter efficiency is more than or equal to 95.0%, and the inhalation and exhalation resistances are less than or equal to 210 Pa), the high-efficiency ultralow-resistance mask has the advantage of high efficiency ultralow resistance, and can be well applied to the field of personal hygiene protection.
Drawings
Fig. 1 is an external view schematically showing a high-efficiency ultra-low-resistance KN95 mask according to an embodiment one;
fig. 2 is a schematic structural view of the mask body;
fig. 3 is a plan view of the high-efficiency ultra-low-resistance KN95 mask according to the first embodiment.
The labels in the figures are illustrated below: 1-a first nonwoven layer; 2-a second nonwoven layer; 3-a third nonwoven layer; 4-a fourth nonwoven layer; 5-elastic ear bands; 6-mask body; 7-nose bridge strips.
Detailed Description
The utility model will be further described with reference to the drawings and specific examples.
The utility model relates to a high-efficiency ultralow-resistance KN95 mask, which comprises a mask body, wherein elastic ear belts 5 are fixedly arranged on two sides of the mask body, and the elastic ear belts 5 are used for hooking ears of a user; the mask body 6 is also provided with a nose bridge strip 7; the mask body 6 comprises a first non-woven fabric layer 1, a second non-woven fabric layer 2, a third non-woven fabric layer 3 and a fourth non-woven fabric layer 4 which are sequentially arranged; the first nonwoven fabric layer 1 and the fourth nonwoven fabric layer 4 are spun-bonded nonwoven fabrics, the second nonwoven fabric layer 2 is electrostatic cotton nonwoven fabrics, and the third nonwoven fabric layer 3 is melt-blown nonwoven fabrics; the fourth nonwoven layer 4 is adjacent to the user side.
The elastic ear belt 5 is fixed with the first nonwoven layer 1 or the fourth nonwoven layer 4 by ultrasonic welding. The elastic ear belt 5 may be bonded to the mask body 6 on the side of the first nonwoven fabric layer 1 or bonded to the mask body 6 on the side of the fourth nonwoven fabric layer 4. The nose bridge strip 7 is fixed between the second non-woven fabric layer 2 and the third non-woven fabric layer 3.
The material of the spun-bonded non-woven fabric comprises one of polypropylene, polyester and polyamide. The gram weight of the spun-bonded non-woven fabric is 10-80g/m 2 The thickness is 0.05-0.65mm.
The gram weight of the electrostatic cotton non-woven fabric is 40-120g/m 2 The thickness is 0.7-1.5mm, the filtering efficiency is more than or equal to 80%, and the filtering resistance is less than or equal to 10Pa.
The gram weight of the melt-blown non-woven fabric is 10-40g/m 2 The thickness is 0.1-0.5mm, the filtering efficiency is more than or equal to 90%, and the filtering resistance is less than or equal to 30Pa.
The high-efficiency ultra-low resistance KN95 mask prepared by the four non-woven fabric layers has the filtering efficiency of more than or equal to 99 percent, the filtering resistance of less than or equal to 60Pa and the inspiration and expiration resistance of less than or equal to 60Pa.
Example 1
As shown in fig. 1 and 3, the utility model provides a high-efficiency ultra-low resistance KN95 mask, which comprises a mask body 6, wherein elastic ear belts 5 are fixedly arranged on two sides of the mask body 6, and the elastic ear belts 5 are used for being hooked on ears of a user; the mask body 6 is also provided with a nose bridge strip 7. Ultrasonic welding fusion bonds the elastic ear strap 5 and the mask body 6 together.
The mask body 6 comprises a first non-woven fabric layer 1, a second non-woven fabric layer 2, a third non-woven fabric layer 3 and a fourth non-woven fabric layer 4 which are sequentially arranged; the nose bridge strip 7 is positioned between the second non-woven fabric layer 2 and the third non-woven fabric layer 3 of the mask body 6.
As shown in fig. 2, the mask body 6 has a four-layer structure, which is respectively: the first nonwoven layer 1 had a grammage of 50g/m 2 A polypropylene spunbond nonwoven fabric having a thickness of 0.43 mm; the second non-woven fabric layer 2 has gram weight of65g/m 2 Electrostatic cotton with thickness of 1.05mm, filtering efficiency of 93.975% and filtering resistance of 2 Pa; the third nonwoven layer 3 had a grammage of 18g/m 2 A polypropylene melt-blown nonwoven fabric with a thickness of 0.18mm, a filtration efficiency of 97.116% and a filtration resistance of 9 Pa; the fourth nonwoven layer 4 had a grammage of 30g/m 2 A polypropylene spunbond nonwoven with a thickness of 0.26 mm.
After welding by an ultrasonic die of a mask machine, the obtained KN95 mask is detected by using TSI8130A, the filter medium is 0.3 mu mNaCl aerosol, the ventilation amount is 85L/min, and the filter efficiency of the mask is 99.447% and the filter resistance is 41Pa. According to GB2626-2019 standard, a mask breathing resistance detector is used for detecting the mask, the ventilation amount is 85L/min, the measured inhalation resistance is 42Pa, and the exhalation resistance is 39Pa.
Example two
As shown in fig. 1 and 3, the utility model provides a high-efficiency ultra-low resistance KN95 mask, which comprises a mask body 6, wherein elastic ear belts 5 are fixedly arranged on two sides of the mask body 6, and the elastic ear belts 5 are used for being hooked on ears of a user; the mask body 6 is also provided with a nose bridge strip 7. Ultrasonic welding fusion bonds the elastic ear strap 5 and the mask body 6 together.
The mask body comprises a first non-woven fabric layer 1, a second non-woven fabric layer 2, a third non-woven fabric layer 3 and a fourth non-woven fabric layer 4 which are sequentially arranged; the nose bridge strip 7 is positioned between the second non-woven fabric layer 2 and the third non-woven fabric layer 3 of the mask body 6.
As shown in fig. 2, the mask body 6 has a four-layer structure, which is respectively: the first nonwoven layer 1 had a grammage of 50g/m 2 A polypropylene spunbond nonwoven fabric having a thickness of 0.43 mm; the second non-woven fabric layer 2 has a gram weight of 80g/m 2 Electrostatic cotton with thickness of 1.25mm, filtering efficiency of 96.257% and filtering resistance of 3 Pa; the third nonwoven layer 3 had a grammage of 22g/m 2 A polypropylene melt-blown nonwoven fabric with a thickness of 0.24mm, a filtration efficiency of 98.116% and a filtration resistance of 11 Pa; the fourth nonwoven layer 4 had a grammage of 30g/m 2 A polypropylene spunbond nonwoven with a thickness of 0.26 mm.
After welding by an ultrasonic die of a mask machine, the obtained KN95 mask is detected by using TSI8130A, the filter medium is 0.3 mu mNaCl aerosol, the ventilation amount is 85L/min, and the filter efficiency of the mask is 99.586% and the filter resistance is 44Pa. According to GB2626-2019 standard, a mask breathing resistance detector is used for detecting the mask, the ventilation amount is 85L/min, the inhalation resistance is 43Pa, and the exhalation resistance is 41Pa.
Example III
As shown in fig. 1 and 3, the utility model provides a high-efficiency ultra-low resistance KN95 mask, which comprises a mask body 6, wherein elastic ear belts 5 are fixedly arranged on two sides of the mask body 6, and the elastic ear belts 5 are used for being hooked on ears of a user; the mask body 6 is also provided with a nose bridge strip 7. Ultrasonic welding fusion bonds the elastic ear strap 5 and the mask body 6 together.
The mask body 6 comprises a first non-woven fabric layer 1, a second non-woven fabric layer 2, a third non-woven fabric layer 3 and a fourth non-woven fabric layer 4 which are sequentially arranged; the nose bridge strip 7 is positioned between the second non-woven fabric layer 2 and the third non-woven fabric layer 3 of the mask body 6.
As shown in fig. 2, the mask body 6 has a four-layer structure, which is respectively: the first nonwoven layer 1 had a grammage of 33g/m 2 A polypropylene spunbond nonwoven fabric having a thickness of 0.27 mm; the second non-woven fabric layer 2 has a gram weight of 90g/m 2 Electrostatic cotton with thickness of 1.20mm, filtering efficiency of 97.068% and filtering resistance of 4 Pa; the third nonwoven layer 3 had a grammage of 20g/m 2 A polypropylene melt-blown nonwoven fabric with a thickness of 0.20mm, a filtration efficiency of 97.674% and a filtration resistance of 9 Pa; the fourth nonwoven layer 4 had a grammage of 51g/m 2 A polypropylene spunbond nonwoven with a thickness of 0.39 mm.
After welding by an ultrasonic die of a mask machine, the obtained KN95 mask is detected by using TSI8130A, the filter medium is 0.3 mu mNaCl aerosol, the ventilation amount is 85L/min, and the filter efficiency of the mask is 99.512% and the filter resistance is 49Pa. According to GB2626-2019 standard, a mask breathing resistance detector is used for detecting the mask, the ventilation amount is 85L/min, the measured inhalation resistance is 48Pa, and the exhalation resistance is 47Pa.
Example IV
The high-efficient ultralow-resistance KN95 mask that this embodiment relates to, the difference with embodiment one lies in: the electrostatic cotton non-woven fabric is formed by superposing two layers of polypropylene electrostatic fiber nets and one layer of polyacrylonitrile fiber net and then processing the two layers of polypropylene electrostatic fiber nets through a hydro-entangled process. The polyacrylonitrile fiber web is located between two polypropylene electrostatic fiber webs.
The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (10)
1. The high-efficiency ultralow-resistance KN95 mask comprises a mask body, wherein elastic ear belts are fixedly arranged on two sides of the mask body and are used for being hooked on ears of a user; the mask body is also provided with a nose bridge strip; it is characterized in that the method comprises the steps of,
the mask body comprises a first non-woven fabric layer, a second non-woven fabric layer, a third non-woven fabric layer and a fourth non-woven fabric layer which are sequentially arranged; the first non-woven fabric layer and the fourth non-woven fabric layer are spun-bonded non-woven fabrics, the second non-woven fabric layer is electrostatic cotton non-woven fabrics, and the third non-woven fabric layer is melt-blown non-woven fabrics; the fourth non-woven fabric layer is close to one side of the user;
the static cotton non-woven fabric is formed by superposing two layers of polypropylene static fiber nets and one layer of polyacrylonitrile fiber net and then processing the two layers of polypropylene static fiber nets through a water jet process; the polyacrylonitrile fiber web is positioned between two polypropylene electrostatic fiber webs.
2. The high-efficiency ultra-low-resistance KN95 mask of claim 1, wherein said elastic ear strap is secured to either the first nonwoven layer or the fourth nonwoven layer by ultrasonic welding.
3. The high-efficiency ultra-low-resistance KN95 mask of claim 1, wherein said nose bridge strips are secured between the second and third nonwoven layers.
4. The high-efficiency ultralow-resistance KN95 mask according to claim 1, wherein the spun-bonded non-woven fabric is made of one of polypropylene, polyester and polyamide.
5. The high-efficiency ultra-low-resistance KN95 mask according to claim 1, wherein the gram weight of the spun-bonded non-woven fabric is 10-80g/m 2 The thickness is 0.05-0.65mm.
6. The high-efficiency ultra-low resistance KN95 mask according to claim 1, wherein the gram weight of the electrostatic cotton non-woven fabric is 40-120g/m 2 The thickness is 0.7-1.5mm, the filtering efficiency is more than or equal to 80%, and the filtering resistance is less than or equal to 10Pa.
7. The high-efficiency ultra-low resistance KN95 mask according to claim 1, wherein the melt-blown non-woven fabric has a gram weight of 10-40g/m 2 The thickness is 0.1-0.5mm, the filtering efficiency is more than or equal to 90%, and the filtering resistance is less than or equal to 30Pa.
8. The high-efficiency ultralow-resistance KN95 mask according to claim 1, wherein the filtering efficiency of the high-efficiency ultralow-resistance KN95 mask is more than or equal to 99%.
9. The high-efficiency ultralow-resistance KN95 mask according to claim 1, wherein the filtration resistance of the high-efficiency ultralow-resistance KN95 mask is less than or equal to 60Pa.
10. The high-efficiency ultralow-resistance KN95 mask according to claim 1, wherein the inhalation and exhalation resistances of the high-efficiency ultralow-resistance KN95 mask are less than or equal to 60Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320395844.5U CN220236121U (en) | 2023-03-06 | 2023-03-06 | High-efficient ultralow resistance KN95 gauze mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320395844.5U CN220236121U (en) | 2023-03-06 | 2023-03-06 | High-efficient ultralow resistance KN95 gauze mask |
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| Publication Number | Publication Date |
|---|---|
| CN220236121U true CN220236121U (en) | 2023-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320395844.5U Active CN220236121U (en) | 2023-03-06 | 2023-03-06 | High-efficient ultralow resistance KN95 gauze mask |
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| Country | Link |
|---|---|
| CN (1) | CN220236121U (en) |
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2023
- 2023-03-06 CN CN202320395844.5U patent/CN220236121U/en active Active
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