CN218096432U - Filter material and filter screen and air purifier including the same - Google Patents
Filter material and filter screen and air purifier including the same Download PDFInfo
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- CN218096432U CN218096432U CN202122779851.9U CN202122779851U CN218096432U CN 218096432 U CN218096432 U CN 218096432U CN 202122779851 U CN202122779851 U CN 202122779851U CN 218096432 U CN218096432 U CN 218096432U
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Abstract
The utility model discloses a filter material, a filter screen comprising the filter material and an air purifier, wherein the filter material comprises a support layer, and the support layer comprises a support part and a filler; the particle filtering layer is arranged on one side of the supporting layer in the thickness direction. According to the utility model discloses filter media, including supporting layer and particulate matter filter layer, the supporting layer includes supporting part and filler, the filler of the higher grammes per square metre of ability loading of supporting layer unit area, it is slow to remove formaldehyde performance well and decay rate, and the resistance of filter media is lower moreover, and the clean air quantity FCADR's of formaldehyde that folds into the filter screen performance is better.
Description
Technical Field
The utility model belongs to the technical field of air treatment device and specifically relates to a filter media reaches filter screen and air purifier including filter media are related to.
Background
The air pollution problem is accompanied when economy develops at a high speed since the innovation of China is opened, particularly, the haze frequently occurs in many places in the whole country every autumn and winter, and the content of inhalable particles in the air is often over standard no matter outdoors or indoors. In particular, in the indoor space of newly decorated homes, harmful gases such as formaldehyde are often accompanied, and the health of people is seriously harmed. With the increasing importance of personal respiratory health problems, household air purifiers capable of effectively removing harmful air gases and inhibiting bacteria and viruses in the air gradually enter thousands of households.
An air cleaner, also called as an air cleaner, an air freshener, a purifier, etc., generally refers to a product capable of adsorbing, decomposing or converting various pollutants (generally, for example, PM2.5, dust, pollen, peculiar smell, decoration pollution such as formaldehyde, bacteria, allergen, etc.) in air and effectively improving air cleanliness, and is mainly classified into household, commercial, industrial, and building according to the use place.
Generally, a core filter unit of an air purifier is mainly composed of two parts of a dust filter and a gas filter. The main core components of the dust filter comprise a high-performance HEPA filter element (namely a single-effect composite filter element for air filtration), and the main function of the dust filter is to filter particles in air; the main core components of the gas filter comprise a honeycomb carbon filling filter screen, a carbon cloth clamping filter screen, a carbon adhering filter screen and the like, and the main functions of the gas filter are adsorption of harmful gases (such as formaldehyde) and the like.
However, the two main filtering units in the prior art generally occupy large space, have many production processes and high cost, and therefore, the composite filtering material for composite type filter screens with particulate matter filtering and harmful gas adsorption is considered to be a suitable direction for solving the above problems in the technical field.
Among the general prior art, the main means that realizes two major functions simultaneously of particulate matter filtration and gas adsorption is the double-layered carbon cloth filter media, includes basically: the support layer, harmful gas adsorption layer (mainly be active carbon or other porous materials), particulate matter filter layer, protective layer that superpose in proper order, but it has the number of piles more, and the process is complicated, and thickness is too thick, problem with high costs.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide a filter material, which has a simple structure, good formaldehyde removal performance and a slow attenuation speed.
Another object of the present invention is to provide a filter net including the filter material.
Another object of the utility model is to provide an include the air purifier of filter screen.
The filter material provided by the embodiment of the first aspect of the utility model comprises a support layer, wherein the support layer comprises a support part and a filler; the particle filtering layer is arranged on one side of the supporting layer in the thickness direction.
According to the utility model discloses filter media, including supporting layer and particulate matter filter layer, the supporting layer includes supporting part and filler, the filler of the higher grammes per square metre of ability loading of supporting layer unit area, it is slow and the resistance of filter media is lower to remove formaldehyde performance well and decay rate, and the performance of folding into the clean air quantity FCADR of formaldehyde after the filter screen is better.
According to some embodiments of the invention, the support portion comprises a three-dimensional cross-linked structure combined by coarse denier polyester fibers, fine denier polyester fibers and adhesive glue.
According to some embodiments of the present invention, the denier of the heavy denier polyester fiber is Td 1 Wherein, the Td 1 Satisfies the following conditions: td is not less than 10D 1 ≤20D；
The denier of the fine denier polyester fiber is Td 2 Wherein, the Td 2 Satisfies the following conditions: 2D is less than or equal to Td 2 ≤9D。
According to some embodiments of the invention, the grammage of the support portion is f, wherein f satisfies: f is more than or equal to 40gsm and less than or equal to 70gsm;
the thickness of the support part is h, wherein h satisfies: h is more than or equal to 0.3mm and less than or equal to 0.5mm;
the resistance of the support part is F, wherein F satisfies: f is less than or equal to 10Pa @1m/s, wherein the Pa @1m/s is resistance measured in Pa under the condition of wind speed of 1 m/s;
longitudinal stiffness D of the support 1 Wherein, the D is 1 Satisfies the following conditions: d 1 ≥150mg；
The transverse stiffness D of the support 2 Wherein, the D is 2 Satisfies the following conditions: d 2 ≥70mg。
According to some embodiments of the invention, the filler comprises a formaldehyde-removing material.
According to some embodiments of the invention, the filler comprises at least one of activated carbon, alumina powder, porous silica gel, calcium stearate and sodium sulfamate.
According to some embodiments of the invention, the particulate filter layer is a melt blown nonwoven layer; preferably, the particulate filtration layer is a layer of electrically charged meltblown nonwoven material.
According to some embodiments of the invention, the melt-blown nonwoven of the melt-blown nonwoven layer has a filament diameter d, wherein d satisfies: d is more than or equal to 1 mu m and less than or equal to 10 mu m.
According to the utility model discloses filter screen of second aspect embodiment, include the filter media.
According to the third aspect of the utility model, the air purifier comprises the filter screen; the filter screen is formed by overlapping the filter materials.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of a filter material according to an embodiment of the present invention.
Reference numerals:
100: a filter material;
1: a support layer;
2: a particulate filter layer.
Detailed Description
Referring to fig. 1, a filter material 100 according to an embodiment of the present invention is described, which includes a support layer 1 and a particulate filter layer 2.
As shown in fig. 1, a filter material 100 according to an embodiment of the present invention includes a support layer 1, where the support layer 1 includes a support portion and a filler; the particle filtering layer 2 is arranged on one side of the supporting layer 1in the thickness direction.
According to the utility model discloses filter media 100, including supporting layer 1 and particulate matter filter layer 2, supporting layer 1 includes supporting part and filler, simple structure, long service life, and the filler of the higher grammes per square metre of ability loading of supporting layer 1 unit area, it is slow to remove the good decay rate of formaldehyde performance, and filter media 100's resistance is lower moreover, and the clean air quantity FCADR's of formaldehyde that folds into the filter screen performance is better.
According to the utility model discloses a concrete embodiment, optionally, spouts gluey or ultrasonic wave composite technology through using the hot melt adhesive, makes filter media 100 with the compound together of supporting layer 1 and particulate matter filter layer 2.
Preferably, the support layer is composed of a support part and a filler, wherein the filler is prepared into the support layer 1 through a dipping/spraying/blade coating-drying-curing-slitting and rolling process. But is not limited thereto. By directly filling the filler on the supporting layer 1, the composite functions of removing formaldehyde, resisting flame, resisting bacteria and viruses and the like are added on the basis of the common particulate matter filtering material, so that the function integration of removing particulate matters and removing harmful gases is realized.
According to some embodiments of the invention, the support portion comprises a three-dimensional cross-linked structure combined by coarse denier polyester fibers, fine denier polyester fibers and adhesive glue. Preferably, the macro-denier polyester fiber has a denier Td 1 Wherein, td 1 Satisfies the following conditions: td is more than or equal to 10D 1 Less than or equal to 20D; the denier of the fine denier polyester fiber is Td 2 Wherein, td 2 Satisfies the following conditions: 2D is less than or equal to Td 2 ≤9D。
In the filter material 100 according to the embodiment of the present invention, the support layer 1 includes coarse denier polyester fiber, fine denier polyester fiber, and adhesive glue, which are manufactured by a wet non-woven technology. The coarse denier polyester fiber has 10-20 denier (D) and the fine denier polyester fiber has 2-9 denier. The three-dimensional cross-linked structure formed by combining the coarse-denier polyester fibers and the fine-denier polyester fibers is porous and high in porosity, ensures that a large gap is reserved in the supporting layer 1, improves the resistance performance and can contain more fillers.
According to some embodiments of the utility model, the gram weight of supporting part is f, wherein, f satisfies: f is more than or equal to 40gsm and less than or equal to 70gsm; the thickness of the supporting part is h, wherein h satisfies: h is more than or equal to 0.3mm and less than or equal to 0.5mm; the resistance of supporting portion is F, wherein, F satisfies: f is less than or equal to 10Pa @1m/s, wherein Pa @1m/s is resistance measured in Pa under the condition of wind speed of 1 m/s; longitudinal stiffness D of the support 1 Wherein D is 1 Satisfies the following conditions: d 1 Not less than 150mg; transverse stiffness D of the support 2 Wherein D is 2 Satisfies the following conditions: d 2 ≥70mg。
Wherein, the supporting part resistance F according to the embodiment of the invention is obtained by measuring under the condition that the wind speed is 1m/s. The test conditions may vary and the resulting resistance F may vary.
In the filter material 100 according to the embodiment of the present invention, the support layer 1 includes coarse denier polyester fiber, fine denier polyester fiber, and adhesive glue, which are manufactured by a wet non-woven technology. The denier of the coarse denier polyester fiber is 10-20, and the denier of the fine denier polyester fiber is 2-9. The three-dimensional cross-linked structure formed by combining the coarse-denier polyester fibers and the fine-denier polyester fibers is porous and high in porosity, ensures large gaps in the supporting layer, improves the resistance performance and can contain more functional formula materials. The increase in the amount of the load packing can effectively increase the endurance life of the function. Moreover, compare with ordinary supporting layer packing, the utility model discloses the filler of the higher grammes per square metre of ability loading of supporting part unit area in the supporting layer 1 of filter media 100 of embodiment except that formaldehyde performance is better and decay rate is slower, and the resistance is lower moreover, and filter screen can be folded into to obtained filter media 100, and the clean air quantity FCADR's of formaldehyde of gained filter screen performance is better.
According to some embodiments of the invention, the filler comprises a formaldehyde-removing material. Preferably, the filler includes at least one of activated carbon, alumina powder, porous silica gel, calcium stearate, and sodium sulfamate.
According to some embodiments of the utility model, remove fillers such as functional material, superfine porous carrier material, hydrophilic agent, penetrant that one or more mixes such as formaldehyde, antibacterial and antiviral, fire-retardant through the loading on the supporting part, realize the utility model discloses embodiment's filter media 100 mainly has and is not limited to except that performances such as formaldehyde, antibacterial and antiviral, fire-retardant.
According to other embodiments of the present invention, the particulate filter layer 2 is a melt-blown nonwoven layer. Preferably, the melt-blown nonwoven material of the melt-blown nonwoven material layer has a filament diameter d, wherein d satisfies: d is more than or equal to 1 mu m and less than or equal to 10 mu m. More preferably, the particulate filter layer 2 is a layer of electrically charged meltblown nonwoven material.
According to the filter material 100 of the embodiment of the present invention, the particle filter layer 2 is preferably a melt-blown nonwoven material with a filament diameter of 1-10 μm. And the charged melt-blown non-woven material is produced by a water electret charging process.
The filter screen according to the embodiment of the second aspect of the present invention includes a filter material 100. For example, the filter medium 100 may be cut and folded to form a filter net. But is not limited thereto.
According to the utility model discloses air purifier of third aspect embodiment, including the filter screen. The filter screen includes filter material 100, and optionally, the filter screen is formed by overlapping filter material 100. But is not limited thereto. The formed air purifier has the function of removing particle pollutants and harmful gases at the same time.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Example 1
A filter material is shown in figure 1, and the preparation method comprises the following steps
1) The supporting part is produced by the coarse-denier polyester fiber, the fine-denier polyester fiber and the adhesive through a wet-process non-woven technology, the gram weight is 45gsm, the thickness is 0.4mm, the average resistance is 5Pa @1m/s, the longitudinal stiffness is more than or equal to 150mg, and the transverse stiffness is more than or equal to 70mg;
2) Preparing formaldehyde-removing filler, and curing the filler on the supporting part through blade coating, drying, curing and slitting winding processes to form a supporting layer 1;
3) And (3) compounding the support layer 1 with the charged particle filtering layer 2 through the pressure-sensitive hot melt adhesive with low odor to obtain the composite material.
4) The composite material is subjected to a slitting-winding process to obtain the filter material 100.
Performance testing
Right the utility model discloses gained filter media 100 carries out capability test, include: the method comprises the following steps of gram weight testing, thickness testing, resistance testing, formaldehyde removal testing and formaldehyde clean air quantity testing.
The test standards or test methods according to which the tests are based are as follows:
1. gram weight test method
10 points were randomly selected in the width direction, and a sample having a size of 100 × 100mm was cut and weighed with an electronic balance having an accuracy of 0.001 g.
2. Thickness testing method
The sample was cut at 10 random points in the width direction, and the size of the sample was 100 × 100mm, and the cut sample was measured by a thickness gauge.
3. Resistance testing method
Randomly extracting 10 points along the width direction, and testing by using a TSI8130/TSI8130A type automatic filter material detector (or other qualified filter material detectors), wherein the wind speed is 5.33cm/s or 1m/s. Resistance unit: pa @1m/s airflow is impeded by Pa at a velocity of 1m/s through the filter medium.
Specifically, the utility model discloses use CF-520 type gurley deflection appearance test, the main use of CF-520 type gurley deflection appearance is used for determining the bending resistance (deflection) of materials such as paper, cardboard, fabric, non-woven fabrics, synthetic leather.
The technical indexes are as follows:
1. measurement range: 1.39-56888 mg (Gurley stiffness unit);
2. length of the sample: 25.4mm (1 in.), 38.1mm (1.5 in.), 63.5mm (2.5 in.), 114.3mm (4.5 in.);
3. sample width: less than or equal to 50.8mm (2 in.);
4. sample clamp position (test length): 12.7mm,25.4mm,50.8mm,101.6mm;
5. sample rack swing speed: 2r/min;
6. weight: 5g, 10g, 25g, 50g, 100g, 200g;
7. center distance of weight groove: r is a radical of hydrogen l ＝25.4mm，r 2 ＝50.8mm，r 3 ＝101.6mm；
Applicable standard
TAPPI T543-1994 bending resistance of paper (Gerley stiffness meter)
ASTM D6125-97 bending resistance in paper and paperboard (Gurley stiffness)
IEST-RP-CC021.2 (2005) HEPA and ULPA filter tests, american society for environmental science and technology
CRAA 433 air filter paper performance test method of China Association of refrigeration and air-conditioning industry
4. Formaldehyde removal test method (Filter screen)
Get the specification and be 100 x 100mm the utility model discloses embodiment 1's filter media 100 removes particulate matter filter layer 2, pours into the formaldehyde liquid of 5ppm initial concentration into in the 60L seal box, detects the formaldehyde clearance after 30 minutes.
5. Formaldehyde clean air quantity (FCADR)
Reference air purifier GB/T18801-2015 appendix C; method for public health inspection part 2: a chemical contaminant.
TABLE 1 the performance test results of the filter material 100 and the common material
As shown in table 1 above, compare with the supporting part that ordinary material formed, the supporting part of unit area is lighter, and the filler of the higher gram weight of supporting part ability loading of unit area removes that the formaldehyde performance is good and decay rate is slow, and the resistance is lower, according to the utility model discloses the filter screen of formation can be folded to supporting layer 1 of specific embodiment, the clean air quantity FCADR's of formaldehyde of gained filter screen performance is better.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. A filter material, comprising:
a support layer including a support portion and a filler; the filler is at least partially filled in the supporting part;
the grammage of the support part is f, wherein f satisfies: f is more than or equal to 40gsm and less than or equal to 70gsm;
the thickness of the support part is h, wherein h satisfies: h is more than or equal to 0.3mm and less than or equal to 0.5mm;
the resistance of the support part is F, wherein F satisfies: f is less than or equal to 10Pa @1m/s, wherein the Pa @1m/s is resistance measured in Pa under the condition of wind speed of 1 m/s;
the longitudinal stiffness D of the support 1 Wherein, the D is 1 Satisfies the following conditions: d 1 ≥150mg；
The transverse stiffness D of the support 2 Wherein, the D is 2 Satisfies the following conditions: d 2 ≥70mg；
The particle filtering layer is arranged on one side of the supporting layer in the thickness direction.
2. The filter of claim 1 wherein the filler comprises a formaldehyde scavenging material.
3. The filter of claim 2 wherein the filler is one of activated carbon, alumina powder, porous silica gel, calcium stearate and sodium sulfamate.
4. The filter of claim 1 wherein the particulate filter layer is a melt blown nonwoven layer.
5. The filter of claim 4, wherein the particulate filter layer is a layer of electrically charged meltblown nonwoven material.
6. The filter of claim 5, wherein the melt-blown nonwoven material of the melt-blown nonwoven material layer has a filament diameter d, wherein d satisfies: d is more than or equal to 1 mu m and less than or equal to 10 mu m.
7. A filter screen comprising the filter of any one of claims 1 to 6.
8. An air cleaner comprising the filter screen of claim 7, wherein the filter screen is formed by overlapping the filter materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122779851.9U CN218096432U (en) | 2021-11-12 | 2021-11-12 | Filter material and filter screen and air purifier including the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122779851.9U CN218096432U (en) | 2021-11-12 | 2021-11-12 | Filter material and filter screen and air purifier including the same |
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| Publication Number | Publication Date |
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| CN218096432U true CN218096432U (en) | 2022-12-20 |
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| CN202122779851.9U Active CN218096432U (en) | 2021-11-12 | 2021-11-12 | Filter material and filter screen and air purifier including the same |
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