CN106984095B - Air filter and air purifier including air filter - Google Patents
Air filter and air purifier including air filter Download PDFInfo
- Publication number
- CN106984095B CN106984095B CN201611258936.XA CN201611258936A CN106984095B CN 106984095 B CN106984095 B CN 106984095B CN 201611258936 A CN201611258936 A CN 201611258936A CN 106984095 B CN106984095 B CN 106984095B
- Authority
- CN
- China
- Prior art keywords
- air filter
- layer
- air
- catalyst
- activated carbon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/88—Handling or mounting catalysts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/08—Special characteristics of binders
- B01D2239/083—Binders between layers of the filter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Filtering Materials (AREA)
Abstract
The present invention relates to air filter and including the air purifier of air filter.Specifically, the present invention relates to air filters, it includes the first tissue layer, the second tissue layer, the filtering material being arranged between the first and second tissue layers, and jointing material, wherein the filtering material includes the combination of formaldehyde catalyst, modified activated carbon or both, and wherein the jointing material includes polyolefin hot-melt.
Description
Technical field
The present invention relates to a kind of air filter and the air purifier including the air filter.Specifically
Ground, the present invention relates to the combined air filter for including modified activated carbon, formaldehyde catalyst or both and including described
The air purifier of air filter.
Background technique
Today's society, air pollution is increasingly severe, this seriously affects the health of people.People generally use air
Clarifier removes the pollutant in air.Filter device is the important component in some air purifiers, passes through filter device
Harmful substance in air such as particle and pernicious gas are removed.Air purifier including filter device be in this field
Know.
Although air filter be it is known, the more outstanding air filter of performance is provided and is advantageous.This
Invention provides performance and obtains improved air filter.
Summary of the invention
One aspect of the present invention is related to air filter, such as folder charcoal cloth comprising the first tissue layer, the second fabric
Layer, the filtering material and jointing material being arranged between the first and second tissue layers, wherein the filtering material includes that formaldehyde is urged
The combination of agent, modified activated carbon or both, and wherein the jointing material includes polyolefin hot-melt.
Another aspect of the present invention is related to air purifier comprising air filter of the invention.
Specific embodiment
Air filter of the invention includes the first tissue layer, the second tissue layer, between the first and second tissue layers
The filtering material and jointing material of setting, wherein the filtering material includes the group of formaldehyde catalyst, modified activated carbon or both
It closes, and wherein the jointing material includes polyolefin hot-melt.Air filter of the invention generally can be used for sky
Tune, air purifier etc., such as Household Air Purifier.
In air filter of the invention, the jointing material is for making first tissue layer, the second tissue layer
It is combined together to form the filter device with filtering material etc..The jointing material of the invention includes polyolefin hot melt
Glue, the preferably described jointing material are selected from polyolefin hot-melt.Various hot melt adhesive as known in the art can be used.Generally
Ground, the polyolefin hot-melt can be selected from polyethylene hot-melt adhesive, polypropylene thermal melten gel and amorphous state alpha olefin copolymer
(Amorphous poly alpha olefin, APAO) hot melt adhesive.According to a preferred embodiment, the jointing material is
Polyethylene hot-melt adhesive.As would be known to one of skill in the art, hot melt adhesive is other than making binder resin as main component,
It may also include some other ingredients, such as tackifier, antioxidant etc..For polyethylene hot-melt adhesive, low-density can be used
Polyethylene or high density polyethylene (HDPE).According to a preferred embodiment, polyethylene hot-melt adhesive of the invention uses low molecular weight
Polyethylene is as resin raw material.The relative molecular weight of the low molecular weight polyethylene can be about 500- about 5000 and melt
Index (ASTM D 1238) can be about 2- about 100g/10min.According to an embodiment, the density of polyethylene hot-melt adhesive <
0.94g/cm3, softening point are about 120 DEG C of about 60-.
The present inventor in air filter surprisingly it has been found that by using polyolefin hot-melt, phase
For using other hot melt adhesive, such as it is now generally used for the EVA glue etc. of air filter preparation, air mistake can be improved
The strainability for filtering device especially can significantly improve air filter and place or be removed using formaldehyde after a period of time
The reduction of performance.
In air filter of the invention, the amount of the jointing material is typically about about 35 weight % of 5-, preferably from about
About 25 weight % of 10-, by air filter be 100 weight % in terms of.
In air filter of the invention, first tissue layer and the second tissue layer are for accommodating or supporting to filter
Material.First and second tissue layer can be various fabrics, including woven fabric, knitted fabric, adhesive-bonded fabric etc..Example
Such as, first tissue layer and the second tissue layer can be the tissue layer commonly used in air filter.Described first and
Two tissue layers can be identical or different.Preferably, the described first and/or second tissue layer is nonwoven fabric layer.As an example, nothing
Fabric layer can be selected from PET nonwoven fabric layer, PP nonwoven fabric layer and PET/PE composite nonwoven fabric nitride layer.The system of these fabrics
Standby is all known in the art.
It can also include other in addition to the first tissue layer and the second tissue layer in air filter of the invention
Layer, such as other tissue layer or functional layer.In one embodiment, air filter of the invention further include one layer or
Multi-layer H EPA (High-efficiency particulate arrestance) layer.Preferably, the HEPA layer choosing autohemagglutination third
HEPA layers of alkene (PP), HEPA layers of polyethylene terephthalate (PET), HEPA layers of glass fibre, polytetrafluoroethylene (PTFE)
(PTFE) HEPA layers and their combination.These HEPA layers is known in the art.For example, HEPA layers can be set
The inner or outer side of one tissue layer and/or the second tissue layer.
In air filter of the invention, the total amount of the tissue layer is typically about about 60 weight % of 15-, preferably from about
About 50 weight % of 25-, by air filter be 100 weight % in terms of.
In air filter of the invention, the filtering material includes formaldehyde catalyst, modified activated carbon or both
Combination.The filtering material is usually arranged between the first tissue layer and the second tissue layer with stratiform.
Filtering material of the invention may include formaldehyde catalyst.For human health, the formaldehyde right and wrong in air are removed
It is often necessary.Formaldehyde catalyst is usually used for catalysis formaldehyde and reacts, such as oxidation reaction occurs, to remove formaldehyde.
Usual formaldehyde catalyst can be selected from noble metal catalyst and catalyst of transition metal oxide etc..Noble metal catalyst is for example
It is the noble metals such as Pt, Pd, Au, Ag, can be optionally supported on different types of carrier.SiO can be used in carrier2、Al2O3、
TiO2、CeO2、Fe2O3、Co3O4、MnO2With molecular sieve etc..Transition metal in catalyst of transition metal oxide for example can be with
It is Mn, Co, Fe, Cr etc..MnO can be used for example in catalyst of transition metal oxide2、Co3O4And Cr2O3Deng.It can be to mistake
Metal oxide is crossed to be doped to be made O composite metallic oxide catalyst, for example, can with the elements such as Ce, Sn, Cu and Zr into
Row doping.Formaldehyde catalyst of the invention can be powder, particle, rodlike, column etc..This field has can be used in the present invention
The various formaldehyde catalysts known.It is, for example, possible to use the purifying formaldehyde particles of flourishing age health Environmental Protection Technology Co., Ltd or powder to make
For formaldehyde catalyst.
In air filter of the invention, the amount of the formaldehyde catalyst is typically about about 55 weight % of 15-, preferably
About 45 weight % of about 20-, by air filter be 100 weight % in terms of.
In air filter of the invention, the filtering material may include modified activated carbon.Modified activated carbon is
The material well known by persons skilled in the art that can be used for air purifier.Modified activated carbon used in the present invention can be this
Commonly used in the modified activated carbon in air filter in field.It can be selected from for the modified activated carbon in the present invention wooden
Active carbon is preferably selected from sawdust class active carbon, shell class active carbon, coconut husk class active carbon and biomass class active carbon, most preferably
Coconut husk class active carbon.Modified activated carbon of the invention can have various shape, including powder, particle, column etc..Active carbon
Modification be known in the art.Preferably, the modified activated carbon that the present invention uses is to remove and be modified for formaldehyde.Needle
The modification carried out to active carbon can carry out in many ways, such as may include: that (1) is strong by potassium permanganate or manganese dioxide etc.
Oxidant loads on the activated carbon；(2) being modified to active carbon makes its surface have amino-NH2Or imino group=NH active group
Group；(3) on the activated carbon by ammonium salt load；Etc..
In air filter of the invention, the amount of the modified activated carbon is typically about about 35 weight % of 2-, preferably from about
About 25 weight % of 5-, by air filter be 100 weight % in terms of.
According to a preferred embodiment of the invention, filtering material of the invention includes simultaneously formaldehyde catalyst and modification
Active carbon.
In a preferred embodiment, the air filter of the invention is folder charcoal cloth.Pressing from both sides charcoal cloth is ability
Known to domain, tissue layer and the active carbon layer between tissue layer are generally included.Folder charcoal cloth of the invention includes of the invention
First tissue layer, the second tissue layer, the filtering material of the invention being arranged between the first and second tissue layers and of the invention
Jointing material, wherein the filtering material includes at least one modified activated carbon and formaldehyde catalyst, and the wherein bonding
Material includes polyolefin hot-melt, and the preferably described jointing material is selected from polyolefin hot-melt.First tissue layer, second are knitted
Nitride layer, jointing material, active carbon and formaldehyde catalyst can be as described above.Ability can be used in folder charcoal cloth of the invention
The preparation of method known to domain.Generally, press from both sides charcoal cloth preparation include setting tissue layer, between tissue layer be arranged filtering material and
Jointing material is heated later and is suppressed.It can also be folded after obtaining folder charcoal cloth to obtain required construction and shape
Shape.
Air filter of the invention, such as folder charcoal cloth can select suitable shape according to the requirement of air evolution device
Shape, such as can be flat shape, or other shapes, such as tubular.
The invention further relates to air purifiers, use the air filter of the invention.Air purifier is this
Known to field, shell, filter device, air transport device, control device etc. are generally included.Air filtration dress of the invention
It sets when for air purifier, can for longer periods keep the formaldehyde removal capacity of air purifier.
Below the present invention will be further illustrated by following non-limiting examples.
Embodiment
Equipment
Methylene oxide detecting instrument: PPM company, Britain methylene oxide detecting instrument, model htv-m
Raw material
PP spun-bonded non-woven fabrics 50g/m2
EVA glue: EVA rubber powder, Guangzhou Wei Wang Plastic Products Co., Ltd
Polyamide hot-melt adhesive powder: T0556, Foshan Yi get adhesive Co., Ltd
Polyethylene glue: PE hot-melt adhesive powder SD-775, Shenzhen is as deep as Environmental-friendhot hot melt adhesive factory
Formaldehyde catalyst: model F1.5Z-2.0, flourishing age health Environmental Protection Technology Co., Ltd
Modified activated carbon: QX- charcoal, Demos Environmental Protection Technology Co., Ltd, Shenzhen
The preparation of sample (air filter)
Place one layer of PP non-woven fabrics；Filtering material and jointing material are laid on PP non-woven fabrics；It is put on filtering material layer
Set second layer PP non-woven fabrics；It heats and suppresses.In terms of being 100 weight % by sample, non-woven fabrics gross weight 50%, jointing material weight is
15%, filter material weight 35%.
The test of sample
Use 3m3The formaldehyde removal efficiency of closed environment test chamber test sample.
Sample (10 × 10cm made above is provided2).Sample is fixed in the blower in test chamber.In test chamber
Formaldehyde is added.The concentration (initial concentration, 0 minute) of formaldehyde in test chamber is measured before blower starts.It is opened while blower starts
Beginning timing.Blower, which starts, makes the air in test chamber cycle through sample with 1.5m/s.It measures at regular intervals and records survey
Try the concentration of formaldehyde in cabin.
The formaldehyde removal rate of 1. sample of table
From upper table it can be clearly seen that unexpectedly, when using polyethylene glue, the formaldehyde of sample after 60 days is gone
Except efficiency is kept substantially；Wherein for formaldehyde catalyst, formaldehyde removal rate is only down to 70% by 72%；For modified active
Charcoal, formaldehyde removal rate are only down to 58% by 62%.Different from polyethylene glue, gone using the formaldehyde of EVA glue and the sample of polyamide glue
Except efficiency significantly reduces after 60 days.
Claims (16)
1. a kind of air filter comprising the first tissue layer, the second tissue layer are arranged between the first and second tissue layers
Filtering material and jointing material, wherein the filtering material includes the combination of formaldehyde catalyst, modified activated carbon or both,
And wherein the jointing material includes polyolefin hot-melt.
2. air filter as described in claim 1, wherein the polyolefin hot-melt is selected from polyethylene hot-melt adhesive, poly- third
Alkene hot melt adhesive and APAO hot melt adhesive.
3. air filter as described in claim 1, wherein the jointing material is polyethylene hot-melt adhesive.
4. air filter as claimed in any one of claims 1-3, wherein the described first and/or second tissue layer is nothing
Fabric layer.
5. air filter as claimed in claim 4, wherein the described first and/or second tissue layer is selected from PET on-woven
Nitride layer, PP nonwoven fabric layer and PET/PE composite nonwoven fabric nitride layer.
6. air filter as claimed in any one of claims 1-3 further includes HEPA layers.
7. air filter as claimed in claim 6, wherein the HEPA layer choosing is from HEPA layers of PP, HEPA layers of PET, glass
HEPA layers of glass fiber, HEPA layers of PTFE and their combination.
8. air filter as claimed in any one of claims 1-3, wherein the modified activated carbon is selected from wooden activity
Charcoal.
9. air filter as claimed in claim 8, wherein the modified activated carbon is selected from sawdust class active carbon, shell class
Active carbon, coconut husk class active carbon and biomass class active carbon.
10. air filter as claimed in claim 9, wherein the modified activated carbon is selected from coconut husk class active carbon.
11. air filter as claimed in any one of claims 1-3, wherein the modified activated carbon is gone for formaldehyde
It removes and is modified.
12. air filter as claimed in any one of claims 1-3, wherein the formaldehyde catalyst is urged selected from noble metal
Agent and catalyst of transition metal oxide.
13. air filter as claimed in claim 12, wherein the noble metal catalyst is selected from Pt, Pd, Au and Ag, institute
The transition metal stated in catalyst of transition metal oxide is selected from Mn, Co, Fe and Cr, and the transition metal oxide is optional
It is doped.
14. air filter as claimed in claim 13, wherein the transition metal oxide optionally by selected from Ce, Sn,
The element doping of Cu and Zr.
15. air filter as claimed in any one of claims 1-3, wherein the air filter is folder charcoal cloth.
16. a kind of air purifier comprising the air filter as described in any one of claim 1-15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611258936.XA CN106984095B (en) | 2016-12-30 | 2016-12-30 | Air filter and air purifier including air filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611258936.XA CN106984095B (en) | 2016-12-30 | 2016-12-30 | Air filter and air purifier including air filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106984095A CN106984095A (en) | 2017-07-28 |
| CN106984095B true CN106984095B (en) | 2019-10-18 |
Family
ID=59414117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611258936.XA Active CN106984095B (en) | 2016-12-30 | 2016-12-30 | Air filter and air purifier including air filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106984095B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107569967B (en) * | 2017-08-21 | 2019-10-29 | 杭州创克洛环境科技有限公司 | It is a kind of for formaldehyde adsorption and the vehicle-mounted air purification piece of TVOC and preparation method thereof |
| GB201812655D0 (en) * | 2018-08-03 | 2018-09-19 | Dyson Technology Ltd | A filter assembly for a fan |
| CN109260823A (en) * | 2018-11-07 | 2019-01-25 | 北京福田戴姆勒汽车有限公司 | A kind of filter core of automotive air-conditioner activated carbon filtering cloth material and its preparation process |
| CN109603407A (en) * | 2018-11-30 | 2019-04-12 | 广东骏亚电子科技股份有限公司 | A kind of wiring board production waste gas processing method |
| CN111714965A (en) * | 2020-06-09 | 2020-09-29 | 艾易西(中国)环保科技有限公司 | Sterilization and disinfection composite filter material and preparation method and application thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002017832A (en) * | 2000-07-03 | 2002-01-22 | Tennex Corp | Deodorizing filter and its manufacturing method |
| DE10318053B4 (en) * | 2003-04-17 | 2008-08-14 | BLüCHER GMBH | Adsorption filter material with high adsorption capacity and low penetration behavior and its use |
| CN104258636B (en) * | 2014-05-19 | 2016-08-24 | 中材科技股份有限公司 | A kind of air purification filter material and preparation method thereof |
| CN105066320A (en) * | 2015-08-27 | 2015-11-18 | 北京米微环保科技有限公司 | Method for purifying indoor air |
| CN205295805U (en) * | 2015-12-03 | 2016-06-08 | 北京亚都环保科技有限公司 | Compound air purification filter paper and use its filter core |
-
2016
- 2016-12-30 CN CN201611258936.XA patent/CN106984095B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106984095A (en) | 2017-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106984095B (en) | Air filter and air purifier including air filter | |
| EP1868209A1 (en) | Filter for removing radioactive substance and filter unit employing the same | |
| JP4953594B2 (en) | Allergen removal filter, composite filter and filter element | |
| CN105944502A (en) | Gas filtering device and air filtering system | |
| KR101296615B1 (en) | Filter Complex for Deodorization and Dustproofing and Manufacturing Method thereof | |
| JP6988477B2 (en) | Filter media for air purification | |
| JP5435839B2 (en) | Deodorant antibacterial sheet and filter material using the same | |
| JP2007069198A (en) | Filter medium for gas removal, composite filter and filter element | |
| JP5334364B2 (en) | Gas removal filter medium, composite filter and filter element | |
| PE20050404A1 (en) | IMPROVEMENTS RELATED TO FILTERS OF SMOKING ARTICLES | |
| CN103623642A (en) | Deodorizing and filtering material and fabrication method thereof | |
| KR100986797B1 (en) | The nonwovens filter | |
| JP3542468B2 (en) | Laminated deodorizing filter media | |
| CN212283201U (en) | Filtering material | |
| CN205730701U (en) | A kind of air purifier multifunctional purifying filter screen | |
| CN112619287A (en) | Filter screen and preparation method thereof, air conditioner indoor unit with filter screen and air purifier | |
| JP2015139720A (en) | Filter material for deodorization filter | |
| WO2004009217A1 (en) | Material for clarifying gas | |
| KR102526926B1 (en) | Radioactive material removal filter, radioactive material removal filter unit using the same, and radioactive material removal method | |
| US20210039028A1 (en) | Filter reinforcing material and filter medium for deodorizing filter comprising same | |
| JP5172165B2 (en) | Gas removal filter medium, composite filter and filter element | |
| CN211133269U (en) | Composite melt-blown filter material | |
| JP5720415B2 (en) | Air cleaning media | |
| JP7017026B2 (en) | Deodorizing filter media and filters | |
| CN205850423U (en) | A kind of multifunctional air purifying sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |