CN207769380U - Combined filtration structure - Google Patents
Combined filtration structure Download PDFInfo
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- CN207769380U CN207769380U CN201721846191.9U CN201721846191U CN207769380U CN 207769380 U CN207769380 U CN 207769380U CN 201721846191 U CN201721846191 U CN 201721846191U CN 207769380 U CN207769380 U CN 207769380U
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- filter layer
- layer
- filter
- combined filtration
- filtration structure
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Abstract
The utility model is related to a kind of combined filtration structure, the structure includes：(1) supporting layer or the first filter layer；(2) second filter layers；And spaced, undulate the strip hot melt adhesive of (3) between first filter layer or supporting layer and the second filter layer；Wherein, the hot melt adhesive layer fixes first filter layer or supporting layer and the second filter layer, to provide combined filtration structure.The utility model can realize the comprehensive compound of filter layer by minimum spread, and hot melt adhesive layer is minimum to filter layer hole hiding rare and impermeable, not plug-hole, realizes optimal compound resistance.In the present invention, the compound resistance that combined filtration structure generates is smaller than 1Pa.
Description
Technical field
The utility model is related to a kind of combined filtration structures.
Background technology
Electrostatic fusion spray cloth etc. has the characteristics that resistance is low, efficient, has excellent air filtration performance, is usually used in mouth
Cover, air filter product.Since electrostatic fusion spray cloth is excessively soft, does not have deflection, thus cannot be directly used to folding, gluing etc.
Processing make filter, need with fid it is compound after could be used for air filter.
The compound of filter layer refers to by modes such as hot rolling, ultrasonic wave, gluings, by two kinds of filtrations and/or support
The material of effect carries out compound technology.It is the common complex method of electrostatic fusion spray cloth that method hot rolling, ultrasonic wave pressure point be compound,
Using more in efficient filtration material.Method hot rolling may cause the electro static filtering efficiency decline of fusion spray cloth and hot rolling pressure point
Cause resistance to increase, and the compound pressure point bigger of ultrasonic wave, resistance increase it is more, and composite material without at pressure point because there is no compound institute
Larger with material thickness, structural drag is larger after making filter.
Two kinds of material local fusings are bonded together by hot rolling, ultrasonic wave, partial points are formed on Compound filtering material surface
Shape is compound.This complex method in inefficient filter material, defend in material and be widely used.This two kinds pass through hot rolling or the composite square of ultrasonic wave
Method causes clinkering point completely airtight since local completely densified clinkering is compound, thus resistance increases.Moreover, not compound place's filter
Material thickness is larger, and making the structure crushing after filter can obviously increase, to reduce filter capability.
To avoid hot rolling or the compound surface pressure point of ultrasonic wave, and in order to adapt to complicated composite construction, also have using applying
Glue mode carries out compound composite construction filter material.As mentioned in CN204261474U patents " with bonding between filter cloth and surface coating
The mode of agent, hot pressing or needle thorn bonds ".The adhesive coated that will be filled with nanocatalyst in CN105854414A applications exists
Substrate surface prepares Compound filtering material.It is also mentioned in CN105169812A applications：Fluorinated ethylene propylene film and polyphenylene sulfide are compound
Polyphenylene sulfide composite filtering material is made by adhesive bonds in layer.These complex methods use adhesive, but are all made of coating
Mode.They, which inevitably form substrate pores to cover, even permeates, and to influence its gas permeability, resistance increases.
Resistance is the important performance indexes of filter layer.How filtrate compound tense will reduce because of the resistance value added of compound generation
It is the important content for studying composite filtering material.Using the supporting layer with good deflection and the filter layer with superior filtration performance,
With minimum compound resistance, lower resistance, high-stiffness, high efficiency are realized, more suitable for filter is made for various air filtrations
Purify occasion.
For this purpose, needing exist for a kind of new combined filtration structure, there is the compound resistance reduced, realize combined filtration
Lower resistance, high-stiffness needed for structure and high efficiency.
Utility model content
The purpose of the utility model example embodiment is to solve above and other deficiency existing in the prior art,
It is excessive to overcome the problems, such as that filter layer compound tense resistance increases, a kind of combined filtration structure reducing compound resistance is provided.
In order to solve the above technical problems, the utility model embodiment provides a kind of combined filtration structure, the structure
Including：
(1) supporting layer or the first filter layer；
(2) second filter layers；And
(3) spaced, undulate the item between first filter layer or supporting layer and the second filter layer
Shape hot melt adhesive；
Wherein, the hot melt adhesive fixes first filter layer or supporting layer and the second filter layer, to provide combined filtration
Structure.
In one embodiment of the utility model, spaced, undulate the strip hot melt adhesive is uniformly distributed
Between supporting layer or the first filter layer and the second filter layer.
In one embodiment of the utility model, spaced, undulate the strip hot melt adhesive it is a diameter of
0.01-0.10mm。
In one embodiment of the utility model, it is divided between spaced, undulate the strip hot melt adhesive
0.5-3mm。
In one embodiment of the utility model, the waveform includes Ω shapes, S-shaped, U-shaped, V-arrangement and their group
It closes.
In one embodiment of the utility model, the waveform is Ω shapes.
In one embodiment of the utility model, spaced, undulate the strip hot melt adhesive is located at described
The surface of supporting layer or the first filter layer and the second filter layer is not embedded in the supporting layer or the first filter layer and the second filter layer
Fiber gap in.
In one embodiment of the utility model, the increased compound resistance of combined filtration structure is less than 1Pa.
By the above embodiment, the utility model can realize the comprehensive multiple of filtering material by minimum spread
It closes, tree lace is minimum to substrate pores hiding rare and impermeable, not plug-hole, realizes optimal compound resistance.In the utility model
In, the increased compound resistance of combined filtration structure is smaller than 1Pa.
By the following detailed description and claim, other features and aspect can become apparent.
Description of the drawings
The exemplary embodiment of the utility model is described in conjunction with the accompanying drawings, this practicality may be better understood
It is novel, in the accompanying drawings：
Fig. 1 shows that waveform described in one specific implementation mode of the utility model is in the undulated fibre shape glue of Ω shapes
The distribution map of item.Wherein, a indicates that adhesive tape/tree lace interval, b indicate that the wave of adhesive tape/tree lace is high, and c indicates adhesive tape/tree lace spacing.
Fig. 2 shows the undulated fibre shape glue that waveform is S-shaped described in one specific implementation mode of the utility model
The distribution map of item.
Fig. 3 shows that a comparative example uses hot rolling or ultrasonic wave pressure point complex method to obtain in the utility model
Compound filtering material figure.
Specific implementation mode
Unless otherwise defined, the technical term or scientific terminology used in claims and specification should be this reality
The ordinary meaning understood with the personage with general technical ability in novel technical field.
The utility model is described further with reference to specific embodiment, but the utility model be not limited to it is following
Specific implementation mode.
Herein, term " spread " is the list in terms of the grammes per square metre of every square metre of hot melt adhesive of the supporting layer or filter layer
Position is g/m2。
Combined filtration structure provided by the utility model can for example pass through the compound skill of (but not limited to) lower resistance below
It is prepared by art.In the present invention, hot melt adhesive hot melt is injected into undulated fibre shape adhesive tape, be sprayed on supporting layer, then incited somebody to action
Filtering layer is bonded together with supporting layer.The method may include：
(1) the fibrous tree lace material is hot melt adhesive, and thin adhesive tape is injected by hot melt；
(2) the fibrous tree lace is sprayed on support layer surface, and is pressed by tree lace and filter layer；
(3) fibrous tree lace undulate, continuous strip, are not overlapped each other；
(4) supporting layer and filter layer can be selected from the material of online production, offline produced or commercial outsourcing
Material；
(5) the fibrous tree lace obtains required composite effect by tree lace diameter, density domination spread, and
Control the incrementss of compound resistance.
In the present invention, fibrous tree lace/adhesive tape material is hot melt adhesive, preferably pressure-sensitive hot melt adhesive.The hot melt adhesive
80~110 DEG C of softening point；3000~20000cps of viscosity, preferably 3000~10000cps；140~180 DEG C of operating temperature,
It is preferred that 140~160 DEG C.
In the present invention, compound that fine-fibrous tree lace is made with glue, it is evenly distributed between supporting layer and filter layer,
Compound filtering material is made by pressing.In an embodiment of the utility model, 0.01~0.10mm of tree lace diameter, 0.01~
0.08mm, 0.01~0.05mm, 0.01~0.03mm, 0.03~0.10mm, 0.03~0.08mm, 0.03~0.05mm, 0.05
~0.10mm or 0.05~0.08mm.
In the present invention, the fibrous tree lace is in continuous stripe-arrangement, and tree lace is around each other not
Overlapping.This can reduce tree lace overlapping and cause resistance to rise and prevent overlapping tree lace from thickeing.In the present invention, between tree lace
Be spaced a (distance of the tree lace top to adjacent tree lace bottom end) 0.5~3mm, 0.5~2.5mm, 0.5~2mm, 0.5~1.5mm,
0.5~1mm, 1.0~3mm, 1.0~2.5mm, 1.0~2mm, 1.0~1.5mm, 1.5~3mm, 1.5~2.5mm or 1.5~
2mm。
In the utility model, fibrous tree lace is in the continuous waveform that does not overlap each other, waveform can be Ω shapes (see
Fig. 1), S-shaped (see Fig. 2) or other analogous shapes, for example, U-shaped, V-arrangement etc..In the utility model preferred embodiment, wave
Shape wave can be Ω shapes.In the present invention, it can be prevented because using the sky between straight line adhesive tape by using waveform tree lace
Shelves cause the disengagement of surface strip, so as to (that is, not disengaging) reduction glue in the case where keeping identical bonding strength
The quantity of item, to reduce resistance and reduce glue consumption.
In the utility model, filter layer is air-permeative filter film, can be melt blown filter cloth, PTFE filter membranes, electro static filtering
Cotton, glass filter paper and combination thereof.Wherein, the PM2.5 filter efficiencies of the filter layer can reach 60~99.97% (
0.053m/s wind speed, PM2.5 grain sizes, NaCl aerosol test dirt experimental condition under).In the utility model, the filter layer
Thickness can be 0.2~2.0mm.
In the utility model, the supporting layer is ventilative hard non-woven fabrics, glass filter paper, PET spun-bonded non-woven fabrics, PET heat
Wind non-woven fabrics, PET fabric hot rolled nonwoven fabrics and combination thereof.The supporting layer can receive fibrous tree lace, and reverse side does not overflow
Go out.The resistance of the supporting layer is less than 1Pa (when 0.053m/s wind speed).The support layer thickness be 0.2~0.6mm, preferably 0.3
~0.4mm, can receive fibrous tree lace and reverse side is not spilt over.
In the utility model, 0.5~3g/m of fibrous tree lace spread2, 0.5~2.5g/m2, 0.5~2g/m2, 0.5~
1.5g/m2, 0.5~1g/m2, 1.0~3g/m2, 1.0~2.5g/m2, 1.0~2g/m2, 1.0~1.5g/m2, 1.5~3g/m2、
1.5~2.5g/m2Or 1.5~2g/m2。
In the utility model, fibrous adhesive tape is sprayed on fid surface, and is not embedded in the fiber gap of fid in order to avoid propping up
Timbering resistance increases, and adhesive tape is evenly distributed between fid and filter material, and Compound filtering material is made by pressing.
In the present invention, realize that filtrate is comprehensively compound with minimum spread, tree lace to substrate pores hiding rare most
Small and impermeable, not plug-hole, realizes that optimal compound resistance, compound resistance are smaller than 1Pa.For make the purpose of this utility model,
Technical solution and effect are clearer, clear, and the utility model is further described below.It should be appreciated that this place is retouched
The specific embodiment stated is only used to explain the utility model, is not used to limit the utility model.
Embodiment 1
The combined filtration structure in embodiment 1 is prepared in accordance with the following steps：
(1) PET fabric hot rolled nonwoven fabrics are provided as supporting layer, which is 80g/m per Gram Mass2, thick
Degree is 0.35mm, and resistance is 1Pa (when 0.053m/s wind speed)；
(2) EVA hot-melt adhesive hot melt is ejected on the PET fabric hot rolled nonwoven fabrics, wherein the softening of the EVA hot melt adhesive
Point is 82 DEG C, viscosity is 3100CPS at a temperature of 150 DEG C；
(3) PP melt spraying non-woven fabrics are provided as filter layer, the PP melt spraying non-woven fabrics are 30g/m per Gram Mass2, thick
Degree is 0.45mm, and filter efficiency is 99.97% (with 0.3 μm of particle under 0.053m/s wind speed), resistance 30Pa；
(4) on fiber glue spraying compounding machine, using Ω shape fiber FE Glue Guns, under 150 DEG C of hot melt adhesive temperature with
The tree lace diameter of 0.05mm carries out fiber glue spraying to support layer surface, wherein adhesive tape shape such as Fig. 1, adhesive tape interval a=2mm, glue
The high b=3mm of wave, adhesive tape spacing c=5mm, spread 1g/m2, and each undulated fibre shape adhesive tape does not overlap each other；With
(5) supporting layer for being sprayed with fibrous tree lace is pressed by the composite roll on compounding machine with filter layer, is made compound
Filtration.
In the present embodiment, the PM2.5 efficiency of the combined filtration structure is 99.97%, resistance 32Pa, because of compound increasing
The resistance added is 1Pa.
Embodiment 2
The combined filtration structure in embodiment 2 is prepared in accordance with the following steps：
(1) PET fabric hot rolled nonwoven fabrics are provided as supporting layer, which is 70g/m per Gram Mass2, thick
Degree is 0.30mm, and resistance is 0.5Pa (when 0.053m/s wind speed)；
(2) EVA pressure-sensitive hot melt adhesives hot melt is ejected on the PET fabric hot rolled nonwoven fabrics, wherein the EVA hot-melt pressure sensitives
The softening point of glue is 85 DEG C, viscosity is 5000CPS at a temperature of 150 DEG C；
(3) PP electrostatic melt spraying non-woven fabrics are provided as filter layer, the PP electrostatic melt spraying non-woven fabrics are per Gram Mass
20g/m2, thickness 0.35mm, filter efficiency is 99.5% (with PM2.5 particle under 0.053m/s wind speed), and resistance is
20Pa；
(4) on fiber glue spraying compounding machine, using S-shaped fiber FE Glue Gun, with 0.02mm under 150 DEG C of hot melt adhesive temperature
Tree lace diameter to support layer surface carry out fiber glue spraying, wherein adhesive tape shape such as Fig. 1, adhesive tape interval a=2mm, adhesive tape wave
High b=3mm, adhesive tape spacing c=5mm, spread 1g/m2, and each undulated fibre shape adhesive tape does not overlap each other；With
(3) supporting layer for being sprayed with fibrous tree lace is pressed by the composite roll on compounding machine with filter layer, is made compound
Filtration.
The PM2.5 efficiency of the filtration is 99.95%, resistance 21Pa, because compound increased resistance is 0.5Pa,
Less than 1Pa.
Comparative example 1 (hot rolling or ultrasonic wave pressure point Compound filtering material)
The Compound filtering material in comparative example 1 is prepared in accordance with the following steps：
(1) PET fabric hot rolled nonwoven fabrics are provided as supporting layer, which is 80g/m per Gram Mass2, thick
Degree is 0.35mm, and resistance is 1Pa (when 0.053m/s wind speed)；
(2) PP melt spraying non-woven fabrics are provided as filter layer, the PP melt spraying non-woven fabrics are 30g/m per Gram Mass2, thick
Degree is 0.45mm, and filter efficiency is 99.97% (with 0.3 μm of particle under 0.053m/s wind speed), and resistance is 30Pa (0.053m/
When s wind speed)；
(3) PET fabric hot rolled nonwoven fabrics and PP melt spraying non-woven fabrics are overlapped into tiling and filter compounding machine into method hot rolling machine or ultrasound,
The spacing of pressure point between row and row, between the column and the column is 5mm, and the composite filter such as Fig. 3 is made in the circle of a diameter of 1mm of pressure point
Material.
In this comparative example, the PM2.5 efficiency of the combined filtration structure is 99.97%, resistance 36Pa, because of compound increasing
The resistance added is 5Pa.
Comparative example 2 (gluing Compound filtering material)
The Compound filtering material in comparative example 2 is prepared in accordance with the following steps：
(1) PET fabric hot rolled nonwoven fabrics are provided as supporting layer, which is 80g/m per Gram Mass2, thick
Degree is 0.35mm, and resistance is 1Pa (when 0.053m/s wind speed)；
(2) PP melt spraying non-woven fabrics are provided as filter layer, the PP melt spraying non-woven fabrics are 30g/m per Gram Mass2, thick
Degree is 0.45mm, and filter efficiency is 99.97% (with 0.3 μm of particle under 0.053m/s wind speed), and resistance is 30Pa (0.053m/
When s wind speed)；；
(3) PET fabric hot rolled nonwoven fabrics are put into gluing compound machine coated with adhesive, adhesive coating spread is 10g/m2,
PP melt-blown filter materials are put and pressed again, combined filtration structure is made.
In this comparative example, the PM2.5 efficiency of the combined filtration structure is 99.97%, resistance 46Pa, because of compound increasing
The resistance added is 15Pa.
Test result
The compound increase resistance of the Compound filtering material of embodiment 1 and comparative example 1-2 is measured with 8130 filtrate testers of TSI, and
Filter material surface is detected with the presence or absence of disengagement phenomenon：
Claims (8)
1. a kind of combined filtration structure, the structure include：
(1) supporting layer or the first filter layer；
(2) second filter layers；And
(3) spaced, undulate the strip heat between first filter layer or supporting layer and the second filter layer
Melten gel；
Wherein, the hot melt adhesive fixes first filter layer or supporting layer and the second filter layer, to provide combined filtration structure.
2. combined filtration structure as described in claim 1, which is characterized in that spaced, undulate the strip heat
Melten gel is evenly distributed between supporting layer or the first filter layer and the second filter layer.
3. combined filtration structure as described in claim 1, which is characterized in that spaced, undulate the strip heat
A diameter of 0.01-0.10mm of melten gel.
4. combined filtration structure as described in claim 1, which is characterized in that spaced, undulate the strip heat
0.5-3mm is divided between melten gel.
5. combined filtration structure as described in claim 1, which is characterized in that the waveform includes Ω shapes, S-shaped, U-shaped, V-arrangement
And combination thereof.
6. combined filtration structure as described in claim 1, which is characterized in that the waveform is Ω shapes.
7. combined filtration structure as described in claim 1, which is characterized in that spaced, undulate the strip heat
Melten gel is located at the surface of the supporting layer or the first filter layer and the second filter layer, is not embedded in the supporting layer or the first filter layer
With in the fiber gap of the second filter layer.
8. combined filtration structure as described in claim 1, which is characterized in that the increased compound resistance of combined filtration structure
Less than 1Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721846191.9U CN207769380U (en) | 2017-12-26 | 2017-12-26 | Combined filtration structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721846191.9U CN207769380U (en) | 2017-12-26 | 2017-12-26 | Combined filtration structure |
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| Publication Number | Publication Date |
|---|---|
| CN207769380U true CN207769380U (en) | 2018-08-28 |
Family
ID=63224813
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721846191.9U Active CN207769380U (en) | 2017-12-26 | 2017-12-26 | Combined filtration structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108057277A (en) * | 2017-12-26 | 2018-05-22 | 浙江金海环境技术股份有限公司 | Composite filter material and its manufacturing method |
| CN109487628A (en) * | 2018-12-26 | 2019-03-19 | 江苏金由新材料有限公司 | A kind of weldering cigarette filter paper and preparation method thereof on weld fumes clarifier |
| CN109648958A (en) * | 2018-11-28 | 2019-04-19 | 江苏优风环保科技有限公司 | A kind of composite nonwoven fabric and its preparation method and application |
-
2017
- 2017-12-26 CN CN201721846191.9U patent/CN207769380U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108057277A (en) * | 2017-12-26 | 2018-05-22 | 浙江金海环境技术股份有限公司 | Composite filter material and its manufacturing method |
| CN109648958A (en) * | 2018-11-28 | 2019-04-19 | 江苏优风环保科技有限公司 | A kind of composite nonwoven fabric and its preparation method and application |
| CN109487628A (en) * | 2018-12-26 | 2019-03-19 | 江苏金由新材料有限公司 | A kind of weldering cigarette filter paper and preparation method thereof on weld fumes clarifier |
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Address after: 311817, Zhejiang City, Shaoxing province Zhuji City Street Town Industrial Zone Patentee after: Zhejiang Jinhai High Tech Co., Ltd Address before: 311817 Industrial Zone, Ying Dian Jie Town, Zhuji City, Zhejiang, Shaoxing, Zhejiang Patentee before: ZHEJIANG GOLDENSEA ENVIRONMENT TECHNOLOGY Co.,Ltd. |