CN220546707U - High-dust-holding nanofiber filter felt - Google Patents
High-dust-holding nanofiber filter felt Download PDFInfo
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- CN220546707U CN220546707U CN202321830998.9U CN202321830998U CN220546707U CN 220546707 U CN220546707 U CN 220546707U CN 202321830998 U CN202321830998 U CN 202321830998U CN 220546707 U CN220546707 U CN 220546707U
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- nanofiber
- layer
- fluffy
- rete
- membrane layer
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- 239000002121 nanofiber Substances 0.000 title claims abstract description 92
- 239000004744 fabric Substances 0.000 claims abstract description 23
- 239000000428 dust Substances 0.000 claims abstract description 21
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims abstract description 14
- 239000012528 membrane Substances 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 13
- 238000004887 air purification Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 238000013329 compounding Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000013327 media filtration Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The application relates to a high dust holding nanofiber filter felt, it includes first nonwoven cloth layer, one side surface of first nonwoven cloth layer is provided with fluffy nanofiber rete, one side surface that fluffy nanofiber rete kept away from first nonwoven cloth layer is provided with the fine and close nanofiber rete, one side surface that fluffy nanofiber rete was kept away from to the fine and close nanofiber rete is provided with the second non-woven fabrics layer, the fiber diameter distribution of fluffy nanofiber rete is 300nm ~ 1500nm, the fiber diameter distribution of fine and close nanofiber rete is 50nm ~ 600nm. Compared with the existing nanofiber filter felt, the high-dust-holding nanofiber filter felt disclosed by the application not only greatly improves the dust holding capacity of the filter felt, but also greatly slows down the resistance loss while guaranteeing high-efficiency filtration, thereby being applied to the fields of air purification and the like and having better air purification effect.
Description
Technical Field
The application relates to the technical field of nanofiber filter felts, in particular to a high-dust-holding nanofiber filter felt.
Background
Currently, popular air purifiers include electrostatic filtration and filter media filtration, wherein the electrostatic filtration can generate ozone to harm health, and the filtration efficiency has more influence factors, so that the market occupation rate is far smaller than that of the air purifier based on the filter media filtration principle. Most of filter elements of the air purifier for filtering the filter materials adopt melt-blown cloth as a core filter element, the melt-blown cloth is subjected to high-voltage charge to be subjected to efficient filtration, and after the charge is attenuated, the filtration efficiency of the filter elements is also attenuated along with the attenuation, so that the influence of ambient temperature, humidity, concentration of filtered dust and the like on the charge attenuation is extremely large. At present, some nanofiber filter felts are arranged, and can have high-efficiency filtering characteristics without charging, and are not influenced by environmental temperature and humidity and dust concentration. However, most nanofiber filter felts in the market have smaller dust holding capacity, so that the resistance rises faster after dust adsorption, and the filtering effect is reduced.
Disclosure of Invention
To above-mentioned market most nanofiber filter felt is because hold the dirt volume less, leads to behind the dust absorption, and resistance rises very fast to reduce the technical problem of filter effect, this application provides a high appearance dirt nanofiber filter felt, adopts following technical scheme:
in a first aspect, the application provides a high dust-holding nanofiber filter felt, which comprises a first nonwoven cloth layer, one side surface of the first nonwoven cloth layer is provided with fluffy nanofiber membrane layer, one side surface of the fluffy nanofiber membrane layer, which is far away from the first nonwoven cloth layer, is provided with compact nanofiber membrane layer, one side surface of the compact nanofiber membrane layer, which is far away from the fluffy nanofiber membrane layer, is provided with a second nonwoven cloth layer, the fiber diameter distribution of the fluffy nanofiber membrane layer is 300 nm-1500 nm, and the fiber diameter distribution of the compact nanofiber membrane layer is 50 nm-600 nm.
Through adopting above-mentioned technical scheme, the high dust holding nanofiber filter felt that this application provided can improve the dust holding volume by a wide margin, realizes lasting high efficiency, slows down the problem that resistance risees by a wide margin.
Preferably, in the fiber diameter distribution of the fluffy nanofiber membrane layer, the 300-600 nm distribution accounts for 5-20%, the 600-1200 nm distribution accounts for 50-80%, and the 1200-1500 nm distribution accounts for 5-20%.
Preferably, in the fiber diameter distribution of the dense nanofiber membrane layer, the 50-150 nm distribution accounts for 5-20%, the 150-500 nm distribution accounts for 50-80%, and the 500-600 nm distribution accounts for 5-20%.
Preferably, the fluffy nanofiber membrane layer is made of one or more of TPU, PA, PAN, MX or PET.
Preferably, the gram weight of the fluffy nanofiber membrane layer is 0.5-2 g/m < 2 >, and the thickness is 0.005-0.02 mm.
Preferably, the dense nanofiber membrane layer is made of one or more of TPU, PA, PAN, MX or PET.
Preferably, the gram weight of the compact nanofiber membrane layer is 0.5-2 g/m < 2 >, and the thickness is 0.005-0.05 mm.
Preferably, the air permeability of the first nonwoven layer/the second nonwoven layer is 1000-2800L/dm < 2 > @ min@200Pa.
Preferably, the gram weight of the first nonwoven layer/the second nonwoven layer is 10-15 g/m2, and the thickness is 0.1-0.3 mm.
Preferably, the first nonwoven fabric layer, the fluffy nanofiber membrane layer, the dense nanofiber membrane layer and the second nonwoven fabric layer are connected together by using an ultrasonic compounding process.
The application provides a high dust holding nanofiber filter felt, it includes first nonwoven cloth layer, one side surface of first nonwoven cloth layer is provided with fluffy nanofiber rete, one side surface that fluffy nanofiber rete was kept away from first nonwoven cloth layer is provided with the fine and close nanofiber rete, one side surface that fluffy nanofiber rete was kept away from to the fine and close nanofiber rete is provided with the second non-woven fabrics layer, the fiber diameter distribution of fluffy nanofiber rete is 300nm ~ 1500nm, the fiber diameter distribution of fine and close nanofiber rete is 50nm ~ 600nm. Compared with the existing nanofiber filter felt, the high-dust-holding nanofiber filter felt provided by the application not only greatly improves the dust holding capacity of the filter felt, but also greatly slows down resistance loss when guaranteeing high-efficiency filtration, so that the high-dust-holding nanofiber filter felt has a good air purifying effect when applied to the fields of air purification and the like.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The accompanying drawings illustrate embodiments and, together with the description, serve to explain the principles of the present application. Many of the intended advantages of other embodiments and embodiments will be readily appreciated as they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale relative to each other. Like reference numerals designate corresponding similar parts.
Fig. 1 is a schematic structural view of a high dust-holding nanofiber filter mat according to an embodiment of the present application.
Reference numerals illustrate: 1. a first nonwoven layer; 2. fluffy nanofiber membrane layers; 3. a dense nanofiber membrane layer; 4. and a second nonwoven fabric layer.
Detailed Description
The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the present utility model are shown in the drawings.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1, the high dust-holding nanofiber filter felt disclosed in the embodiments of the present application includes a first nonwoven cloth layer 1, a fluffy nanofiber membrane layer 2, a dense nanofiber membrane layer 3 and a second nonwoven cloth layer 4 which are sequentially connected.
In a specific embodiment, the first nonwoven layer 1 is one of a spunbond or a hot air cotton, more specifically, the first nonwoven layer 1 is made of PP or PET material.
In a specific embodiment, the first nonwoven layer 1 has a grammage of 10 to 15g/m2 and a thickness of 0.1 to 0.3mm, and the first nonwoven layer 1 has a ventilation amount of 1000 to 2800L/dm 2 * min@200Pa. The first nonwoven fabric layer 1 is mainly used for improving strong supporting and film protecting functions, and cloth with extremely high air permeability is selected to reduce resistance loss.
In a specific embodiment, the fiber diameter distribution of the fluffy nanofiber membrane layer 2 is 300 nm-1500 nm. The fluffy nanofiber membrane layer 2 is made of nanofibers with fluffy and high porosity, so that dust has sufficient adsorption aperture, and the loss of resistance is reduced due to thicker nanofibers;
in a specific embodiment, in the fiber diameter distribution of the fluffy nanofiber membrane layer 2, the 300-600 nm distribution accounts for 5-20%, the 600-1200 nm distribution accounts for 50-80%, and the 1200-1500 nm distribution accounts for 5-20%. By virtue of this arrangement, it is possible to further provide sufficient adsorption pore size for dust and further reduce the loss of resistance.
In a specific embodiment, the fluffy nanofiber membrane layer 2 is made of one or more of TPU, PA, PAN, MX or PET.
In a specific embodiment, the gram weight of the fluffy nanofiber membrane layer 2 is 0.5-2 g/m2, and the thickness is 0.005-0.02 mm.
In a specific embodiment, the fiber diameter distribution of the dense nanofiber membrane layer 3 is 50nm to 600nm. The compact nanofiber membrane layer 3 adopts smaller nanofibers, provides a small-size space with high porosity, and ensures high-efficiency filtration characteristics and smaller resistance loss.
In a specific embodiment, in the fiber diameter distribution of the dense nanofiber membrane layer 3, the 50-150 nm distribution accounts for 5-20%, the 150-500 nm distribution accounts for 50-80%, and the 500-600 nm distribution accounts for 5-20%. Thereby further ensuring high-efficiency filtering characteristics and smaller resistance loss.
In a specific embodiment, the dense nanofiber membrane layer 3 is made of one or more of TPU, PA, PAN, MX or PET.
In a specific embodiment, the gram weight of the dense nanofiber membrane layer 3 is 0.5-2 g/m2, and the thickness is 0.005-0.05 mm.
In a specific embodiment, the second nonwoven layer 4 is one of a spunbond or a hot air cotton, more specifically the second nonwoven layer 4 is made of PP or PET material.
In a specific embodiment, the gram weight of the second non-woven fabric layer 4 is 10-15 g/m2, the thickness is 0.1-0.3 mm, and the ventilation rate of the second non-woven fabric layer 4 is 1000-2800L/dm 2 * min@200Pa. The second non-woven fabric layer 4 is the same as the first non-woven fabric layer 1 and is used for improving the strong supporting and film protecting functions, and cloth with extremely high air permeability is selected to reduce resistance loss.
In a specific embodiment, the first nonwoven layer 1, the fluffy nanofiber membrane layer 2, the dense nanofiber membrane layer 3, and the second nonwoven layer 4 are connected together using an ultrasonic compounding process. The first nonwoven fabric layer 1, the fluffy nanofiber membrane layer 2, the compact nanofiber membrane layer 3 and the second nonwoven fabric layer 4 are compounded by ultrasonic compounding to form the filter felt, and compared with a glue spraying or hot pressing process, the influence on the resistance of the filter felt is greatly reduced.
Compared with the existing nanofiber filter felt, the high-dust-holding nanofiber filter felt disclosed by the application not only greatly improves the dust holding capacity of the filter felt, but also greatly slows down the resistance loss while guaranteeing high-efficiency filtration, thereby being applied to the fields of air purification and the like and having better air purification effect.
While the present utility model has been described with reference to the specific embodiments thereof, the scope of the present utility model is not limited thereto, and any changes or substitutions will be apparent to those skilled in the art within the scope of the present utility model, and are intended to be covered by the present utility model. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
In the description of the present application, it should be understood that the terms "upper," "lower," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. The word 'comprising' does not exclude the presence of elements or steps not listed in a claim. The word 'a' or 'an' preceding an element does not exclude the presence of a plurality of such elements. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage. Any reference signs in the claims shall not be construed as limiting the scope.
Claims (8)
1. The utility model provides a high hold dirt nanofiber filter felt which characterized in that: including first nonwoven cloth layer (1), one side surface of first nonwoven cloth layer (1) is provided with fluffy nanofiber rete (2), one side surface that fluffy nanofiber rete (2) were kept away from first nonwoven cloth layer (1) is provided with dense nanofiber rete (3), one side surface that fluffy nanofiber rete (2) were kept away from to dense nanofiber rete (3) is provided with second non-woven fabrics layer (4), the fiber diameter distribution of fluffy nanofiber rete (2) is 300nm ~ 1500nm, the fiber diameter distribution of dense nanofiber rete (3) is 50nm ~ 600nm.
2. The high dust holding nanofiber filter mat of claim 1 wherein: the fluffy nanofiber membrane layer (2) is made of one of TPU, PA, PAN, MX or PET.
3. A high dust holding nanofiber as set forth in claim 2Filter felt, its characterized in that: the gram weight of the fluffy nanofiber membrane layer (2) is 0.5-2 g/m 2 The thickness is 0.005-0.02 mm.
4. The high dust holding nanofiber filter mat of claim 1 wherein: the dense nanofiber membrane layer (3) is made of one of TPU, PA, PAN, MX or PET.
5. The high dust holding nanofiber filter mat of claim 4 wherein: the gram weight of the compact nanofiber membrane layer (3) is 0.5-2 g/m 2 The thickness is 0.005-0.05 mm.
6. The high dust holding nanofiber filter mat of claim 1 wherein: the air permeability of the first non-woven cloth layer (1)/the second non-woven cloth layer (4) is 1000-2800L/dm 2 *min@200Pa。
7. The high dust holding nanofiber filter mat of claim 6 wherein: the gram weight of the first nonwoven cloth layer (1)/the second nonwoven cloth layer (4) is 10-15 g/m 2 The thickness is 0.1-0.3 mm.
8. The high dust holding nanofiber filter mat according to any one of claims 1-7, wherein: the first nonwoven fabric layer (1), the fluffy nanofiber membrane layer (2), the compact nanofiber membrane layer (3) and the second nonwoven fabric layer (4) are connected together by utilizing an ultrasonic composite process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321830998.9U CN220546707U (en) | 2023-07-12 | 2023-07-12 | High-dust-holding nanofiber filter felt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321830998.9U CN220546707U (en) | 2023-07-12 | 2023-07-12 | High-dust-holding nanofiber filter felt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220546707U true CN220546707U (en) | 2024-03-01 |
Family
ID=90008003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321830998.9U Active CN220546707U (en) | 2023-07-12 | 2023-07-12 | High-dust-holding nanofiber filter felt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220546707U (en) |
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2023
- 2023-07-12 CN CN202321830998.9U patent/CN220546707U/en active Active
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