CN111642839A - Novel high-tightness high-efficiency filtering medical protective mask and sealing method - Google Patents
Novel high-tightness high-efficiency filtering medical protective mask and sealing method Download PDFInfo
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- CN111642839A CN111642839A CN202010430100.3A CN202010430100A CN111642839A CN 111642839 A CN111642839 A CN 111642839A CN 202010430100 A CN202010430100 A CN 202010430100A CN 111642839 A CN111642839 A CN 111642839A
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- edge
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- 238000007789 sealing Methods 0.000 title claims abstract description 29
- 230000001681 protective effect Effects 0.000 title claims abstract description 24
- 238000001914 filtration Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 16
- 239000000741 silica gel Substances 0.000 claims abstract description 16
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 16
- 239000002131 composite material Substances 0.000 claims abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 5
- 238000007731 hot pressing Methods 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 25
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 239000012982 microporous membrane Substances 0.000 abstract description 9
- 230000001815 facial effect Effects 0.000 abstract description 5
- 238000010030 laminating Methods 0.000 abstract description 5
- 230000007123 defense Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009423 ventilation Methods 0.000 abstract description 3
- 230000036541 health Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 8
- 239000004744 fabric Substances 0.000 description 5
- 241000700605 Viruses Species 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000004750 melt-blown nonwoven Substances 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000011162 core material Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 208000025721 COVID-19 Diseases 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000002458 infectious effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
- A41D13/113—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a vertical fold or weld
-
- 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
- A41H—APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
- A41H43/00—Other methods, machines or appliances
- A41H43/04—Joining garment parts or blanks by gluing or welding ; Gluing presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical 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 novel high-tightness and high-efficiency filtering medical protective mask and a sealing method, and belongs to the technical field of biological protection of medical care and health. The left side and the right side of the mask main body are provided with elastic clamp belts, and the upper side of the mask main body is provided with an aluminum nose clip; the mask main body sequentially comprises a skin-friendly SS spun-bonded non-woven fabric, a composite layer and a hydrophobic non-woven fabric from inside to outside; the composite layer is formed by hot pressing a PTEE microporous film and a hot-rolled non-woven fabric into a whole, and the composite layer is bent and overlapped; the edge position of the inner side surface of the mask body is connected with a silica gel sealing ring. According to the invention, the 60-degree folding angle design of the PTEE microporous membrane ensures that the actual ventilation area is 2 times of that of the mask main body, thereby greatly reducing the airflow resistance, improving the applicability of the PTEE microporous membrane, and realizing efficient and durable filtration and reusability of the whole body; improve gauze mask main part border and the facial laminating of user through setting up the silica gel sealing washer, stop the problem of gauze mask edge air current seepage, improve defense effect.
Description
Technical Field
The invention relates to the technical field of biological protection of medical care and health, in particular to a novel high-tightness and high-efficiency filtering medical protective mask and a sealing method.
Background
The medical protective mask currently used is difficult to play a sufficient protective role under the conditions of high infectious virus invasion and high-strength working conditions. We analyzed the following three causes.
Firstly, the filtration rate of the medical protective mask is reduced in use. At present, polypropylene melt-blown non-woven fabrics are used as core filtering materials of the medical protective mask for major professionals, the material is large in pore size and basically depends on static electricity to adsorb virus particles, but in actual use, the melt-blown non-woven fabrics are easy to disappear under the interference of factors such as exhaled air condensed water and the like, and the original protective effect is difficult to play.
Secondly, viruses with extremely strong infectivity like COVID-19 are easy to cause wide-range epidemic situation in a short time, so that disposable medical protective materials are in short supply, and medical care personnel cannot fully protect the medical protective materials. The polypropylene material melt-blown cloth is easy to degrade, and after the polypropylene material melt-blown cloth is sterilized by common sterilization methods such as high-temperature steam, ozone, alcohol and the like, not only the microporous structure is destroyed, but also the electrostatic adsorption function disappears, so that the current medical protective mask is difficult to sterilize and recycle even under the condition of short shortage of materials.
Thirdly, the mask has large airflow resistance and low high sealing property. At present medical protective facial mask adopts the tiling design of melt-blown non-woven fabrics more, and the inside and outside pressure differential of gauze mask is big when the user breathes in, and under the untight condition of gauze mask edge and facial laminating, contaminated air leads to medical staff to expose among the occupational risk from gauze mask edge infiltration. The medical protective mask of volume production shape is fixed, can not effectively agree with all users' face types, and is difficult to realize totally laminating with skin.
In some prior patents, a PTFE microporous filter membrane is used as a core material, but only a simple flat-laying design is adopted, so that the airflow resistance is greatly increased, but the airflow leakage at the edge of the mask is more easily increased, and no PTFE medical mask is on the market at present.
Disclosure of Invention
In order to solve the technical problems, the invention provides a novel high-tightness and high-efficiency filtering medical protective mask and a sealing method.
The invention is realized by the following technical scheme: a novel high-tightness high-efficiency filtering medical protective mask comprises a mask main body, wherein elastic clamp belts are arranged on the left side and the right side of the mask main body, and an aluminum nose clip is arranged on the upper side of the mask main body; the mask main body sequentially comprises a skin-friendly SS spunbonded non-woven fabric on an inner layer, a composite layer on a middle layer and a hydrophobic non-woven fabric on an outer layer from inside to outside; the composite layer is formed by hot-pressing a PTEE microporous film and a hot-rolled non-woven fabric into a whole, and the composite layer is bent and overlapped; the edge position of the inner side surface of the mask body is connected with a silica gel sealing ring.
Preferably: the composite layer is repeatedly bent at an angle of 60 degrees.
Preferably: the silica gel sealing ring comprises a strip-shaped main body, and the outer side of the strip-shaped main body is provided with a welding edge extending outwards; the bottom surface of the strip-shaped main body is connected with the inner side surface of the mask main body through a magic tape; the welding edges are aligned with the edges of the strip-shaped main body and connected through ultrasonic welding.
A sealing method of a novel high-tightness high-efficiency filtering medical protective mask comprises a mask main body, wherein elastic clamp belts are arranged on the left side and the right side of the mask main body, and an aluminum nose clamp is arranged on the upper side of the mask main body; the silica gel sealing ring comprises a strip-shaped main body, and the outer side of the strip-shaped main body is provided with a welding edge extending outwards;
firstly, aligning the welding edge with the edge of the strip-shaped main body;
secondly, the bottom surface of the strip-shaped main body is connected with the inner side surface of the mask main body through a magic tape;
and finally, connecting the welding edge with the edge of the strip-shaped main body through ultrasonic welding, and forming a thermoplastic seal by the welding edge and the edge of the strip-shaped main body.
Compared with the prior art, the invention has the beneficial effects that:
the mask comprises a mask body, a hot-rolled non-woven fabric is used for carrying a PTEE microporous membrane on an intermediate composite layer, the actual ventilation area of the PTEE microporous membrane is 2 times of that of the mask body due to the 60-degree folding angle design, the airflow resistance is greatly reduced, the applicability of the PTEE microporous membrane is improved, and the integral high-efficiency durable filtration and reusability are realized;
2, the airflow resistance is reduced, and meanwhile, the adhesion between the edge of the mask main body and the face of a user is improved by arranging the silica gel sealing ring, so that the comfort level is improved, the skin is prevented from being crushed by wearing the protective mask for a long time, the problem of airflow leakage at the edge of the mask is also solved, and the defense effect is improved;
3, the silica gel sealing washer sets up and divide into two parts, and one is convenient for silica gel sealing washer's location installation and welding process, improves machining efficiency, and two have improved silica gel sealing washer and gauze mask main part laminating degree and leakproofness, prevent that the junction from taking place to leak gas.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the mask body according to the present invention;
fig. 3 is a cross-sectional view of a mask body according to an embodiment of the present invention;
FIG. 4 is a schematic view of the connection between the mask body and the silicone sealing ring according to the embodiment of the present invention;
in the figure: 1. hydrophobic non-woven fabric; 2. skin-friendly SS spun-bonded nonwoven fabric; 3. compounding layers; 3-1, a PTEE microporous membrane; 3-2, hot rolling the non-woven fabric; 4. a mask body; 5. an aluminum nose clip; 6. elastic clamping belt; 7. a silica gel seal ring; 7-1, a strip-shaped main body; 7-2, welding edges; 7-3, magic tape; 8. and (4) sealing by heat molding.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Example one
Referring to fig. 1 to 3, the mask body 4 is provided with elastic clips 6 at left and right sides thereof, and an aluminum nose clip 5 at an upper side of the mask body 4; the improvement of the embodiment is that:
the mask body 4 comprises a skin-friendly SS spunbonded nonwoven fabric 2 of an inner layer, a composite layer 3 of a middle layer and a hydrophobic nonwoven fabric 1 of an outer layer in sequence from inside to outside. The composite layer 3 is formed by hot-pressing and integrating a PTEE microporous film 3-1 and a hot-rolled non-woven fabric 3-2, the composite layer 3 is repeatedly bent and overlapped, and the bending angle is 60 degrees. Through the design of the 60-degree folding angle of the PTEE microporous membrane, the actual ventilation area of the mask is 2 times that of the mask main body, the airflow resistance is greatly reduced, and the applicability of the PTEE microporous membrane is improved; the PTFE microporous filter membrane can realize long-time mechanical filtration of virus and other polluted particles without depending on static electricity, has high efficiency and lasting filtration as a whole, and can be disinfected and reused under the condition of emergency shortage of materials.
Referring to fig. 4, the silicone sealing ring 7 includes a strip-shaped main body 7-1, and an outwardly extending welding edge 7-2 is provided on the outer side of the strip-shaped main body 7-1. The bottom surface of the strip-shaped main body 7-1 is connected with the inner side surface of the mask main body 4 through a magic tape 7-3; the welding edge 7-2 is aligned with the edge of the strip-shaped body 7-1 and is connected by ultrasonic welding. . The design through 60 dog-ears of PTEE microporous membrane has reduced the air current resistance, then the rethread sets up the silica gel sealing washer and improves gauze mask main part border and the facial laminating of user to this stops the problem of gauze mask edge air current seepage, improves defense effect, also can increase the comfort level and reduce and wear protective facial mask for a long time and weigh skin.
Example two
On the basis of the first embodiment, the sealing method of the novel high-adhesion and high-efficiency filtering medical protective mask comprises the following steps:
firstly, aligning a welding edge 7-2 with the edge of a strip-shaped main body 7-1;
secondly, the bottom surface of the strip-shaped main body 7-1 is connected with the inner side surface of the mask main body 4 through a magic tape 7-3;
and finally, connecting the welding edge 7-2 with the edge of the strip-shaped main body 7-1 through ultrasonic welding, and forming a thermoplastic seal 8 by the welding edge 7-2 and the edge of the strip-shaped main body 7-1.
According to the sealing method, the silica gel sealing ring is convenient to position, install and weld, and the machining efficiency is improved; and secondly, the fitting degree and the sealing property of the silica gel sealing ring and the mask body are improved, and the air leakage at the joint is prevented.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. A novel high-tightness high-efficiency filtering medical protective mask comprises a mask main body (4), wherein elastic clamp belts (6) are arranged on the left side and the right side of the mask main body (4), and an aluminum nose clip (5) is arranged on the upper side of the mask main body (4);
the method is characterized in that:
the mask main body (4) comprises a skin-friendly SS spunbonded non-woven fabric (2) at an inner layer, a composite layer (3) at a middle layer and a hydrophobic non-woven fabric (1) at an outer layer in sequence from inside to outside; the composite layer (3) is formed by hot-pressing and integrating a PTEE microporous film (3-1) and a hot-rolled non-woven fabric (3-2), and the composite layer (3) is bent and overlapped;
the edge position of the inner side surface of the mask body (4) is connected with a silica gel sealing ring (7).
2. The novel high-fit high-efficiency filtration medical protective mask according to claim 1, wherein: the composite layer (3) is repeatedly bent to form an angle of 60 degrees.
3. The novel high-fit high-efficiency filtration medical protective mask according to claim 1, wherein: the silica gel sealing ring (7) comprises a strip-shaped main body (7-1), and the outer side of the strip-shaped main body (7-1) is provided with a welding edge (7-2) extending outwards; the bottom surface of the strip-shaped main body (7-1) is connected with the inner side surface of the mask main body (4) through a magic tape (7-3); the welding edge (7-2) is aligned with the edge of the strip-shaped main body (7-1) and is connected with the edge of the strip-shaped main body through ultrasonic welding.
4. A novel high-tightness high-efficiency filtering medical protective mask sealing method comprises a mask main body (4), wherein elastic clamp belts (6) are arranged on the left side and the right side of the mask main body (4), and an aluminum nose clip (5) is arranged on the upper side of the mask main body (4);
the method is characterized in that:
the silica gel sealing ring (7) comprises a strip-shaped main body (7-1), and the outer side of the strip-shaped main body (7-1) is provided with a welding edge (7-2) extending outwards;
firstly, aligning a welding edge (7-2) with the edge of a strip-shaped main body (7-1);
secondly, the bottom surface of the strip-shaped main body (7-1) is connected with the inner side surface of the mask main body (4) through a magic tape (7-3);
and finally, connecting the welding edge (7-2) with the edge of the strip-shaped main body (7-1) through ultrasonic welding, and forming a thermoplastic seal (8) by the welding edge (7-2) and the edge of the strip-shaped main body (7-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010430100.3A CN111642839A (en) | 2020-05-20 | 2020-05-20 | Novel high-tightness high-efficiency filtering medical protective mask and sealing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010430100.3A CN111642839A (en) | 2020-05-20 | 2020-05-20 | Novel high-tightness high-efficiency filtering medical protective mask and sealing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111642839A true CN111642839A (en) | 2020-09-11 |
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ID=72349631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010430100.3A Pending CN111642839A (en) | 2020-05-20 | 2020-05-20 | Novel high-tightness high-efficiency filtering medical protective mask and sealing method |
Country Status (1)
| Country | Link |
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| CN (1) | CN111642839A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2922098A1 (en) * | 2021-02-25 | 2022-09-08 | Teixint Projectes S L | Reusable respiratory protection device (Machine-translation by Google Translate, not legally binding) |
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