CN217139605U - One-step forming multi-layer multifunctional filter material containing polytetrafluoroethylene microporous membrane - Google Patents
One-step forming multi-layer multifunctional filter material containing polytetrafluoroethylene microporous membrane Download PDFInfo
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- CN217139605U CN217139605U CN202220465044.1U CN202220465044U CN217139605U CN 217139605 U CN217139605 U CN 217139605U CN 202220465044 U CN202220465044 U CN 202220465044U CN 217139605 U CN217139605 U CN 217139605U
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Abstract
The utility model discloses a multi-functional filter media of one shot forming multilayer that contains polytetrafluoroethylene microporous membrane, including from down and the first antistatic non-woven fabrics (1) that sets gradually, first antibacterial non-woven fabrics (2), PTFE membrane (3), second antibacterial non-woven fabrics (4) and second are anti static non-woven fabrics (5), be equipped with first glue net (11) between first antistatic non-woven fabrics (1) and first antibacterial non-woven fabrics (2), be equipped with second glue net (41) between second anti static non-woven fabrics (5) and second antibacterial non-woven fabrics (4), be equipped with first hot melt adhesive layer (21) between first antibacterial non-woven fabrics (2) and PTFE membrane (3), be equipped with second hot melt adhesive layer (31) between PTFE membrane (3) and second antibacterial non-woven fabrics (4). The utility model has the characteristics of connect closely degree height, long service life, the function is various.
Description
Technical Field
The utility model relates to a multi-functional filter media of multilayer, especially a multi-functional filter media of one shot forming multilayer who contains polytetrafluoroethylene microporous membrane.
Background
In recent years, with the continuous improvement of living standard of people, various novel sweeping robots, dust collectors and household full-house purifiers are developed endlessly, and the application of polytetrafluoroethylene microporous membranes is more and more common in order to filter fine particulate matters such as PM2.5 and the like. The commonly used filter material containing the polytetrafluoroethylene microporous membrane is formed by adopting two layers of non-woven fabrics to sandwich the PTFE microporous membrane and then directly sewing. Although the air permeability loss of the PTFE microporous membrane is minimized in the mode, because the PTFE microporous membrane is not well fixed, the connection tightness between each layer is not strong enough, in the actual use process, the friction between the PTFE microporous membrane and the non-woven fabric is difficult to avoid, the static electricity is caused, the discharge spark is easy to occur, the separation condition of the filter material layer is easy to occur after the PTFE microporous membrane is used for a long time, the service life is short, only the filtering effect is achieved, and the effect is single. Therefore, the existing filter material containing the polytetrafluoroethylene microporous membrane has the problems of insufficient connection tightness, long service life and single function.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multi-functional filter media of one shot forming multilayer that contains polytetrafluoroethylene microporous membrane. The utility model has the characteristics of connect closely degree height, long service life, function are various.
The technical scheme of the utility model: contain multi-functional filter media of one shot forming multilayer of polytetrafluoroethylene microporous membrane, including from down and the first antistatic non-woven fabrics that sets gradually, first antibiotic non-woven fabrics, the PTFE membrane, the antibiotic non-woven fabrics of second and second are equipped with first glue net between first antistatic non-woven fabrics and the first antibiotic non-woven fabrics, be equipped with the second glue net between the antibiotic non-woven fabrics of second and the second, be equipped with first hot melt adhesive layer between first antibiotic non-woven fabrics and the PTFE membrane, be equipped with second hot melt adhesive layer between PTFE membrane and the antibiotic non-woven fabrics of second.
In the multifunctional filter material with the one-step forming multilayer and the polytetrafluoroethylene microporous membrane, the hot melt adhesive of the first hot melt adhesive layer is sprayed on the top surface of the first antibacterial non-woven fabric, and the hot melt adhesive of the second hot melt adhesive layer is sprayed on the bottom surface of the second antibacterial non-woven fabric.
In the one-step forming multi-layer multifunctional filter material containing the polytetrafluoroethylene microporous membrane, the first antistatic non-woven fabric and the second antistatic non-woven fabric respectively comprise a non-woven fabric body, an isolation net layer formed by transversely and longitudinally staggered distribution of a plurality of conductive fibers and antibacterial fibers is arranged in the non-woven fabric body, and titanium dioxide particles are attached to cross gaps of the isolation net layer.
In the one-step formed multilayer multifunctional filter material containing the polytetrafluoroethylene microporous membrane, the first antibacterial non-woven fabric and the second antibacterial non-woven fabric are both internally provided with a wavy antibacterial layer composed of antibacterial fibers, and antibacterial particles are distributed on the antibacterial layer.
In the one-step forming multi-layer multifunctional filter material containing the polytetrafluoroethylene microporous membrane, the first rubber net and the second rubber net are both EVA hot melt rubber nets.
In the one-step forming multi-layer multifunctional filter material containing the polytetrafluoroethylene microporous membrane, the first hot melt adhesive layer and the second hot melt adhesive layer both adopt polyethylene hot melt adhesives.
In the one-step forming multi-layer multifunctional filter material containing the polytetrafluoroethylene microporous membrane, the thickness of the filter material is 0.25-0.30 mm.
Compared with the prior art, the invention has the beneficial effects that:
the utility model discloses in adopt a polyester non-woven fabrics, first antibiotic non-woven fabrics, the PTFE membrane, the form that second antibiotic non-woven fabrics and second anti static non-woven fabrics heat bond each other constitutes the filter media, the gas permeability is good, the filter resistance is little, high filtration efficiency, and have antibiotic, it is antistatic, multiple properties such as, and through first glue net between each layer, the second glue net, hot rolling connection once of first hot melt adhesive layer and second hot melt adhesive layer, adhesive force between each layer is strong, it is high to connect closely degree, structural stability is good, difficult production static, the security is high, long service life.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of a barrier web layer.
The labels in the figures are: 1. a first antistatic nonwoven fabric; 11. a first rubber net; 12. a nonwoven fabric body; 13. a conductive fiber; 14. an antimicrobial fiber; 15. an isolating net layer; 16. titanium dioxide particles; 2. a first antimicrobial nonwoven fabric; 21. a first hot melt adhesive layer; 3. a PTFE membrane; 31. a second hot melt adhesive layer; 4. a second antimicrobial nonwoven fabric; 41. a second adhesive web; 42. an antimicrobial layer; 43. antibacterial particles; 5. and a second antistatic non-woven fabric.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
Example (b):
as shown in fig. 1 and 2, a multi-functional filter media of one shot forming multilayer that contains polytetrafluoroethylene microporous membrane, including from down and the first antistatic non-woven fabrics 1 that sets gradually, first antibiotic non-woven fabrics 2, PTFE membrane 3, antibiotic non-woven fabrics 4 of second and second 5, be equipped with first adhesive tape 11 between first antistatic non-woven fabrics 1 and the first antibiotic non-woven fabrics 2, be equipped with second adhesive tape 41 between antibiotic non-woven fabrics 5 of second and the second 4, be equipped with first hot melt adhesive layer 21 between antibiotic non-woven fabrics 2 of first and the PTFE membrane 3, be equipped with second hot melt adhesive layer 31 between PTFE membrane 3 and the antibiotic non-woven fabrics 4 of second.
The hot melt adhesive spraying of first hot melt adhesive layer 21 is at the top surface of first antibiotic non-woven fabrics 2, and the hot melt adhesive spraying of second hot melt adhesive layer 31 is at the bottom surface of second antibiotic non-woven fabrics 4.
The first antistatic non-woven fabric 1 and the second antistatic non-woven fabric 5 are both spunlace spun-bonded polyester non-woven fabrics, and the gram weight is 30g/m 2 . The first antistatic non-woven fabric 1 and the second antistatic non-woven fabric 5 both comprise a non-woven fabric body 12, an isolation net layer 15 formed by a plurality of conductive fibers 13 and antibacterial fibers 14 in a crisscross mode is arranged in the non-woven fabric body 12, and titanium dioxide particles 16 are attached to cross gaps of the isolation net layer 15. The first antistatic non-woven fabric 1 and the second antistatic non-woven fabric 5 are good in air permeability, and the release of static electricity generated by friction when particulate matters impact on the filter material is facilitated through the arranged isolation net layer 15, so that good antistatic effect is achievedThe anti-bacterial and anti-bacterial integrated fabric has the advantages that the anti-bacterial and anti-bacterial effects are achieved, the titanium dioxide particles 16 serving as photocatalyst materials are adopted, the formaldehyde removing effect is achieved, the isolation net is located inside the non-woven fabric body 12, the structure is stable, the external damage to the non-woven fabric body is small, and the service life is long.
The first antibacterial non-woven fabric 2 and the second antibacterial non-woven fabric 4 are both provided with a wavy antibacterial layer 42 formed by antibacterial fibers 14, and antibacterial particles 43 are distributed on the antibacterial layer 42. First antibiotic non-woven fabrics 2 and second antibiotic non-woven fabrics 4 are located first antistatic non-woven fabrics 1 and the inboard of the antibiotic non-woven fabrics 5 of second, can effectively separate tiny bacterium, have both guaranteed the gas permeability of filter media, reduce the filtration resistance, and antibiotic layer 42 is wavy moreover, increases the area of contact of antibiotic layer 42 and air, reduces the condition of peeling off of antibiotic particle 43, and antibiotic effectual, antibiotic long-term lasting.
The gram weights of the first antibacterial non-woven fabric 2 and the second antibacterial non-woven fabric 4 are both 18g/m 2 。
The gram weight of the PTFE membrane 3 was 1g/m 2 。
The first rubber net 11 and the second rubber net 41 are both 3g/m 2 The EVA hot melt adhesive net. The adhesive force is strong, the adhesive force among all layers is effectively improved, and the structural stability of the whole filter material is improved.
The first hot melt adhesive layer 21 and the second hot melt adhesive layer 31 both adopt polyethylene hot melt adhesive, and the gluing amount is 5g/m 2 。
The filter material is obtained by secondary glue spraying of a hot melt adhesive, secondary bonding of a hot melt adhesive net and primary forming of hot rolling, the temperature of a hot rolling hot roll is 185 ℃, the vehicle speed is 10m/s, the resistance can be reduced by more than 50pa, the production efficiency can be doubled, and the defective rate is greatly reduced. The gram weight of the obtained filter material finished product is 113g/m 2 The filtration efficiency of the finished product is 99.996%, the resistance of the finished product is 242Pa, the thickness of the finished product is 0.28mm, and the first-class yield is more than 95%.
The details of the present invention are not described in the prior art, and therefore, are not specifically described herein.
Claims (7)
1. The one-step forming multi-layer multifunctional filter material containing the polytetrafluoroethylene microporous membrane is characterized in that: including from down and first antistatic non-woven fabrics (1) that set gradually, first antibiotic non-woven fabrics (2), PTFE membrane (3), antibiotic non-woven fabrics of second (4) and antibiotic non-woven fabrics of second (5), be equipped with first adhesive tape (11) between first antistatic non-woven fabrics (1) and first antibiotic non-woven fabrics (2), be equipped with second adhesive tape (41) between antibiotic non-woven fabrics of second (5) and antibiotic non-woven fabrics of second (4), be equipped with first hot melt adhesive layer (21) between first antibiotic non-woven fabrics (2) and PTFE membrane (3), be equipped with second hot melt adhesive layer (31) between antibiotic non-woven fabrics of PTFE membrane (3) and second (4).
2. The one-step-formed multi-layer multifunctional filter containing a polytetrafluoroethylene microporous membrane according to claim 1, wherein: the hot melt adhesive spraying of first hot melt adhesive layer (21) is at the top surface of first antibiotic non-woven fabrics (2), and the hot melt adhesive spraying of second hot melt adhesive layer (31) is at the bottom surface of second antibiotic non-woven fabrics (4).
3. The one-step-formed multi-layer multifunctional filter containing a polytetrafluoroethylene microporous membrane according to claim 1, wherein: the first antistatic non-woven fabric (1) and the second antistatic non-woven fabric (5) both comprise non-woven fabric bodies (12), isolation net layers (15) which are formed by a plurality of conductive fibers (13) and antibacterial fibers (14) in a transversely and longitudinally staggered mode are arranged in the non-woven fabric bodies (12), and titanium dioxide particles (16) are attached to cross gaps of the isolation net layers (15).
4. The one-step-formed multi-layer multifunctional filter containing a polytetrafluoroethylene microporous membrane according to claim 1, wherein: the first antibacterial non-woven fabric (2) and the second antibacterial non-woven fabric (4) are both internally provided with a wavy antibacterial layer (42) formed by antibacterial fibers (14), and antibacterial particles (43) are distributed on the antibacterial layer (42).
5. The one-step-formed multi-layer multifunctional filter containing a polytetrafluoroethylene microporous membrane according to claim 1, wherein: the first rubber net (11) and the second rubber net (41) are both EVA hot melt rubber nets.
6. The one-step-formed multi-layer multifunctional filter containing a polytetrafluoroethylene microporous membrane according to claim 1, wherein: the first hot melt adhesive layer (21) and the second hot melt adhesive layer (31) both adopt polyethylene hot melt adhesives.
7. The one-step-formed multi-layer multifunctional filter containing a polytetrafluoroethylene microporous membrane according to claim 1, wherein: the thickness of the filter material is 0.25-0.30 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220465044.1U CN217139605U (en) | 2022-03-04 | 2022-03-04 | One-step forming multi-layer multifunctional filter material containing polytetrafluoroethylene microporous membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220465044.1U CN217139605U (en) | 2022-03-04 | 2022-03-04 | One-step forming multi-layer multifunctional filter material containing polytetrafluoroethylene microporous membrane |
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| Publication Number | Publication Date |
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| CN217139605U true CN217139605U (en) | 2022-08-09 |
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| CN202220465044.1U Active CN217139605U (en) | 2022-03-04 | 2022-03-04 | One-step forming multi-layer multifunctional filter material containing polytetrafluoroethylene microporous membrane |
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| CN (1) | CN217139605U (en) |
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- 2022-03-04 CN CN202220465044.1U patent/CN217139605U/en active Active
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