CN101491742A - Composite air filtering material for filtering bag and preparation method thereof - Google Patents
Composite air filtering material for filtering bag and preparation method thereof Download PDFInfo
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- CN101491742A CN101491742A CNA2009100953548A CN200910095354A CN101491742A CN 101491742 A CN101491742 A CN 101491742A CN A2009100953548 A CNA2009100953548 A CN A2009100953548A CN 200910095354 A CN200910095354 A CN 200910095354A CN 101491742 A CN101491742 A CN 101491742A
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- layer
- deodorizing
- protective layer
- filter
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- 239000000463 material Substances 0.000 title claims abstract description 100
- 238000001914 filtration Methods 0.000 title claims abstract description 66
- 239000002131 composite material Substances 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title claims description 15
- 230000001877 deodorizing effect Effects 0.000 claims abstract description 96
- 239000010410 layer Substances 0.000 claims abstract description 82
- 239000011241 protective layer Substances 0.000 claims abstract description 73
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 43
- 150000001875 compounds Chemical class 0.000 claims abstract description 28
- 239000004744 fabric Substances 0.000 claims abstract description 28
- -1 sodium bicarbonate, magnesium aluminum silicates Chemical class 0.000 claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 19
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 14
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000010457 zeolite Substances 0.000 claims abstract description 14
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 11
- 239000004750 melt-blown nonwoven Substances 0.000 claims abstract description 11
- 239000000428 dust Substances 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000741 silica gel Substances 0.000 claims abstract description 3
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims abstract 2
- 239000000843 powder Substances 0.000 claims description 25
- 239000004743 Polypropylene Substances 0.000 claims description 23
- 239000012790 adhesive layer Substances 0.000 claims description 23
- 229920001155 polypropylene Polymers 0.000 claims description 14
- 229920002678 cellulose Polymers 0.000 claims description 12
- 239000001913 cellulose Substances 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 11
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 238000010410 dusting Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 239000004831 Hot glue Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 abstract 3
- 238000004332 deodorization Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000470 constituent Substances 0.000 description 8
- 239000012467 final product Substances 0.000 description 7
- 230000000844 anti-bacterial effect Effects 0.000 description 5
- 239000002023 wood Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Filtering Materials (AREA)
Abstract
The invention relates to a compound air filter material and a method for preparing the same. The composite air filter material used for filter bags comprises a protective layer, a deodorizing layer and a filter layer, wherein the protective layer and the filter layer are compounded on two side faces of the deodorizing layer respectively; the protective layer is made of wood pulp fiber filter paper, spun-bond non-woven fabric or spun-lace non-woven fabric, and the gram weight of the material of the protective layer is 10 to 200g/m<2>; the deodorizing layer is made of one of active carbon, zeolite , sodium bicarbonate, magnesium aluminum silicates and silica gel or a mixture of any two of the wood pulp fiber filter paper, the spun-bond non-woven fabric and the spun-lace non-woven fabric, and the gram weight of the material of the deodorizing layer is 10 to 300g/m<2>; and the filter layer is made of melt-blown non-woven fabric, wood pulp fiber filter paper or SMS non-woven fabric, and the gram weight of the material of the filter layer is 10 to 100g/m<2>. The compound air filter material has high filtration efficiency and deodorization efficiency, low filtration resistance and high dust capacity.
Description
(1) technical field
The invention belongs to field of air filtration, be specifically related to a kind of composite air filtering material that is used for filter bag and preparation method thereof.
(2) background technology
The air filting material function singleness that generally is used for filter bag, major function are confined to filter.Airborne fine particle has a large amount of bacteriums, and these fine particles contain nutriments such as starch, protein sometimes, provide life condition to the bacterium procreation, filter bag just becomes pollution sources, also can produce a large amount of gas with foreign flavor simultaneously, brings secondary pollution to environment.
Increase layer of active carbon cloth in the filtering material of a small amount of filter bag, this active carbon cloth phosphorus content is lower, and is bigger to the drag effects of filter bag, and the cost height.Only adopt single common active carbon, common active carbon is all right to the pernicious gas clearance that contains phenyl ring, but very poor to aldehydes, sour gas and alkaline gas clearance.
(3) summary of the invention
Technical problem to be solved by this invention is to provide a kind of filter efficiency and odor removal efficient height, filtration resistance is low, dust capaciting ability the is high composite air filtering material that is used for filter bag.
Technical problem to be solved by this invention also is to provide a kind of preparation method of described composite air filtering material.
A kind of composite air filtering material that is used for filter bag comprises protective layer, deodorizing layer, filter course, and protective layer and filter course are compound with the two sides of deodorizing layer respectively;
Described protective layer adopts wood pulp cellulose filter paper, spun-bonded non-woven fabrics or spunlace non-woven cloth, and the material grammes per square metre of protective layer is 10～200g/m
2
Described deodorizing layer adopts one of the following or any combination of material more than two kinds: active carbon, zeolite, sodium acid carbonate, aluminium magensium silicate, silica gel, the material grammes per square metre of deodorizing layer is at 10-300g/m
2
Described filter course adopts melt spraying non-woven fabrics, wood pulp cellulose filter paper or SMS nonwoven, and the material grammes per square metre of filter course is at 10-100g/m
2
Described protective layer preferably adopts 45～65g/m
2Wood pulp cellulose filter paper or 20～60g/m
2Polypropylene spun-bonded non-woven fabrics.
Described deodorizing layer component preferred version has:
One: 100% active carbon of scheme, grammes per square metre 20～60g/m
2
Two: 5～20wt% of scheme zeolite, 80～95wt% sodium acid carbonate, grammes per square metre 20～60g/m
2
Three: 10～40wt% of scheme active carbon, 10～40wt% zeolite, 20～80wt% sodium acid carbonate, grammes per square metre 20～60g/m
2
Four: 10～40wt% of scheme active carbon, 10～40wt% aluminium magensium silicate, 20～80wt% sodium acid carbonate, grammes per square metre 20～60g/m
2
Described filter course preferably adopts grammes per square metre 15～50g/m
2Polypropylene melt blown non-woven fabric, grammes per square metre 10～25g/m
2Wood pulp cellulose filter paper or grammes per square metre 15～30g/m
2The SMS nonwoven.
Protective layer of the present invention gives composite filter material good intensity, and protects the powder of deodorizing layer not expose, and this layer material gas permeability is fine, and is less to the drag effects of composite filter material.Deodorizing layer of the present invention is mainly born the function of deodorizing, realizes by mechanism such as physical absorption, chemisorbed, chemical reactions.Filter course of the present invention is the primary air filter course, bears and filters and dedusting function.
Further, be provided with adhesive layer between described protective layer and the deodorizing layer.During preparation, adhesive is executed on protective layer, by duster the deodorizing layer powder is sprinkling upon on the adhesive layer uniformly, adhesive can be water-soluble glue, PUR, and the adhesive photoresist coating process adopts technologies such as spraying, dusting, transfer.Also the powder of deodorizing layer can be added in the adhesive, spray on protective layer then.
Further, be provided with adhesive layer between described filter course and the deodorizing layer.During preparation, adhesive is executed on filter course, compound with deodorizing layer then.Also can be when protective layer and deodorizing layer be compound, filter course is compound with deodorizing layer, utilize the adhesive of executing on deodorizing layer that filter course is combined with each other.Deodorizing layer and filter course also can without adhesive bonding and directly the stack.
Further, described filter course also is compounded with first and holds knoisphere, and described first holds knoisphere adopts spun-bonded non-woven fabrics, hot-wind nonwoven cloth, wood pulp cellulose filter paper, melt spraying non-woven fabrics or needle punched non-woven fabrics, and first holds the material grammes per square metre of knoisphere at 10-200g/m
2Of the present invention first holds the appearance dirt function that knoisphere is mainly born filter bag.Described first holds knoisphere preferably adopts grammes per square metre 15～60g/m
2Spun-bonded non-woven fabrics, grammes per square metre 15～60g/m
2Hot-wind nonwoven cloth, grammes per square metre 10～25g/m
2Wood pulp cellulose filter paper, grammes per square metre 15～60g/m
2Melt spraying non-woven fabrics or grammes per square metre 40～150g/m
2Needle punched non-woven fabrics.
Further, described first holds knoisphere also is compounded with further in order to improve the second appearance knoisphere of dust containing capacity, described second holds knoisphere adopts spun-bonded non-woven fabrics, hot-wind nonwoven cloth, wood pulp cellulose filter paper, melt spraying non-woven fabrics or needle punched non-woven fabrics, and second holds the material grammes per square metre of knoisphere at 10-200g/m
2It is compound that the second appearance knoisphere and first holds knoisphere, can improve the dust containing capacity of filter bag, increases the life-span of filter bag.Described second holds knoisphere preferably adopts grammes per square metre 15～60g/m
2Spun-bonded non-woven fabrics, grammes per square metre 15～60g/m
2Hot-wind nonwoven cloth, grammes per square metre 10～25g/m
2Wood pulp cellulose filter paper, grammes per square metre 15～60g/m
2Melt spraying non-woven fabrics or grammes per square metre 40～150g/m
2Needle punched non-woven fabrics.
Further, described protective layer also is compounded with in order to improve the enhancement layer of protective layer intensity, and enhancement layer adopts spun-bonded non-woven fabrics, and the material grammes per square metre of enhancement layer is at 15-100g/m
2Described enhancement layer preferably adopts grammes per square metre 20～60g/m
2Spun-bonded non-woven fabrics.
The first appearance knoisphere of the present invention, second holds knoisphere, enhancement layer can be bonding through adhesive layer with compound basic unit, but compound the getting final product that directly superpose.
The invention provides the preparation method of several described composite air filtering materials:
A kind of described preparation method who is used for the composite air filtering material of filter bag; comprise the steps: protective layer material is placed discharging frame; spraying applies adhesive; be sprinkling upon the deodorizing pulvis on the adhesive layer uniformly by the dusting machine again; spray paste stick on the deodorizing pulvis then; compound with the filter course material then, at last through the drying unit oven dry.
A kind of described preparation method who is used for the composite air filtering material of filter bag; comprise the steps: protective layer material is placed discharging frame; hot-melt adhesive powder is added in the deodorizing pulvis; be sprinkling upon the deodorizing pulvis of preparing on the protective layer uniformly by the dusting machine; enter drying tunnel; with hot-melt adhesive powder fusing, last and the filter course material is compound.
A kind of described preparation method who is used for the composite air filtering material of filter bag; comprise the steps: protective layer material is placed discharging frame; hot-melt adhesive powder joins in the deodorizing pulvis; be sprinkling upon the deodorizing pulvis of preparing on the protective layer uniformly by the dusting machine; compound with the filter course material then, at last through the drying unit oven dry.
Composite air filtering material of the present invention has following beneficial effect:
1, high filtration efficiency and odor removal efficient
According to the filter efficiency requirement of filter bag, can develop each the used specification filtering material of filter bag that to make H13 (European EN 1822-1:1998 and EN 779:2002) and following grade.Each gauge material should select the filtering material that mates, this series material filter efficiency can reach 99.97% (test particle diameter: 0.3 μ m, test filtering velocity 5.3cm/s).
This series material utilizes mechanism such as the physical absorption, chemisorbed, chemical reaction of deodorizing layer to remove the gas of peculiar smell, can reach more than 30% the organic matter rate of removing that contains phenyl ring, to H
2The rate of removing of S can reach 50%, can reach 50% to the rate of removing of ammonia.
2, very low filtration resistance
Filtration resistance is the same with filter efficiency also to be one of important parameter of weighing filtering material, and good filtering material pressure reduction in use is less.This composite filter material adopts that the filtering material of low-resistance is compound to be made, and this material resistance is very low, compares the little 5%-30% of the general filtering material of resistance ratios with other filtering material of equal efficient.Specifically see the following form:
3, higher dust capaciting ability
This composite material by adopting multiple filtration material is compound, forms multistage filtering, has improved the dust capaciting ability of filtering material so greatly, and giving filter bag has the very long life-span.
(4) description of drawings
Fig. 1 is the structural representation of embodiment 1 described composite air filtering material.
Fig. 2 is the structural representation of embodiment 2 described composite air filtering materials.
Fig. 3 is the structural representation of embodiment 3 described composite air filtering materials.
Fig. 4 is the structural representation of embodiment 4 described composite air filtering materials.
Fig. 5 is the structural representation of embodiment 5 described composite air filtering materials.
Fig. 6 is the structural representation of embodiment 6 described composite air filtering materials.
Fig. 7 is the structural representation of embodiment 7 described composite air filtering materials.
Fig. 8 is the structural representation of embodiment 8 described composite air filtering materials.
(5) specific embodiment
Below by embodiment the present invention is made preferably specific description, but protection scope of the present invention is not limited to this.
With reference to Fig. 1, a kind of composite air filtering material that is used for filter bag comprises protective layer 1, deodorizing layer 2, filter course 3, and protective layer 1 and filter course 3 are compound with the two sides of deodorizing layer 2 respectively;
Described protective layer adopts grammes per square metre 40g/m
2The antibacterial polypropylene spun-bonded non-woven fabrics;
Described deodorizing layer adopts grammes per square metre 50g/m
2The deodorizing powder, each weight ratio of constituents example is 30% active carbon in the deodorizing powder, 20% zeolite, 50% sodium acid carbonate;
Described filter course adopts grammes per square metre 40g/m
2The polypropylene melt blown non-woven fabric.
Be provided with adhesive layer 6 between described protective layer 1 and the deodorizing layer 2.Be provided with adhesive layer 7 between described filter course 3 and the deodorizing layer 2.
During preparation, protective layer material is placed discharging frame, spray and apply adhesive; be sprinkling upon the deodorizing pulvis on the adhesive layer uniformly by the dusting machine again; spray paste stick on the deodorizing pulvis is compound with the filter course material then then, at last through the drying unit oven dry.
With reference to Fig. 2, a kind of composite air filtering material that is used for filter bag comprises protective layer 1, deodorizing layer 2, filter course 3, and protective layer 1 and filter course 3 are compound with the two sides of deodorizing layer 2 respectively;
Described protective layer adopts grammes per square metre 40g/m
2The antibacterial polypropylene spun-bonded non-woven fabrics;
Described deodorizing layer adopts grammes per square metre 50g/m
2The deodorizing powder, each weight ratio of constituents example is 30% active carbon in the deodorizing powder, 20% zeolite, 50% sodium acid carbonate;
Described filter course adopts grammes per square metre 40g/m
2The polypropylene melt blown non-woven fabric.
Be provided with adhesive layer 6 between described protective layer 1 and the deodorizing layer 2.Be provided with adhesive layer 7 between described filter course 3 and the deodorizing layer 2.
Described filter course 3 also is compounded with first and holds knoisphere 4.Described first holds knoisphere adopts grammes per square metre 40g/m
2Hot-wind nonwoven cloth.
The composite air filtering material of present embodiment only needs on the basis of embodiment 1, and the stack first appearance knoisphere 4 gets final product on filter course 3.
With reference to Fig. 3, a kind of composite air filtering material that is used for filter bag comprises protective layer 1, deodorizing layer 2, filter course 3, and protective layer 1 and filter course 3 are compound with the two sides of deodorizing layer 2 respectively;
Described protective layer adopts grammes per square metre 40g/m
2The antibacterial polypropylene spun-bonded non-woven fabrics;
Described deodorizing layer adopts grammes per square metre 50g/m
2The deodorizing powder, each weight ratio of constituents example is 30% active carbon in the deodorizing powder, 20% zeolite, 50% sodium acid carbonate;
Described filter course adopts grammes per square metre 40g/m
2The polypropylene melt blown non-woven fabric.
Be provided with adhesive layer 6 between described protective layer 1 and the deodorizing layer 2.Be provided with adhesive layer 7 between described filter course 3 and the deodorizing layer 2.
Described filter course 3 also is compounded with first and holds knoisphere 4.Described first holds knoisphere adopts grammes per square metre 40g/m
2Hot-wind nonwoven cloth.
Described first holds knoisphere 4 also is compounded with further in order to improve the second appearance knoisphere 5 of dust containing capacity.Described second holds knoisphere adopts grammes per square metre 20g/m
2The antibacterial polypropylene spun-bonded non-woven fabrics.
The composite air filtering material of present embodiment only needs on the basis of embodiment 2, holds the second appearance knoisphere 5 that superposes again on the knoisphere 4 first and gets final product.
With reference to Fig. 4, a kind of composite air filtering material that is used for filter bag comprises protective layer 1, deodorizing layer 2, filter course 3, and protective layer 1 and filter course 3 are compound with the two sides of deodorizing layer 2 respectively;
Described protective layer adopts grammes per square metre 40g/m
2The antibacterial polypropylene spun-bonded non-woven fabrics;
Described deodorizing layer adopts grammes per square metre 50g/m
2The deodorizing powder, each weight ratio of constituents example is 30% active carbon in the deodorizing powder, 20% zeolite, 50% sodium acid carbonate;
Described filter course adopts grammes per square metre 40g/m
2The polypropylene melt blown non-woven fabric.
Be provided with adhesive layer 6 between described protective layer 1 and the deodorizing layer 2.Be provided with adhesive layer 7 between described filter course 3 and the deodorizing layer 2.
Described filter course 3 also is compounded with first and holds knoisphere 4.Described first holds knoisphere adopts grammes per square metre 40g/m
2Hot-wind nonwoven cloth.
Described protective layer 1 also is compounded with in order to improve the enhancement layer 8 of protective layer intensity.Described enhancement layer adopts grammes per square metre 20g/m
2Polypropylene spun-bonded non-woven fabrics.
The composite air filtering material of present embodiment only needs on the basis of embodiment 2, and the second appearance knoisphere 8 that superposes again on protective layer 1 gets final product.
With reference to Fig. 5, a kind of composite air filtering material that is used for filter bag comprises protective layer 1, deodorizing layer 2, filter course 3, and protective layer 1 and filter course 3 are compound with the two sides of deodorizing layer 2 respectively;
Described protective layer adopts grammes per square metre 60g/m
2Spunlace non-woven cloth;
Described deodorizing layer adopts grammes per square metre 30g/m
2The deodorizing powder, each weight ratio of constituents example is 50% active carbon in the deodorizing powder, 50% zeolite;
Described filter course adopts grammes per square metre 40g/m
2The polypropylene melt blown non-woven fabric.
Be provided with adhesive layer 6 between described protective layer 1 and the deodorizing layer 2.
During preparation, protective layer material is placed discharging frame, spray and apply adhesive, by the dusting machine deodorizing pulvis is sprinkling upon on the adhesive layer uniformly again, compound with the filter course material then, at last through the drying unit oven dry.
With reference to Fig. 6, a kind of composite air filtering material that is used for filter bag comprises protective layer 1, deodorizing layer 2, filter course 3, and protective layer 1 and filter course 3 are compound with the two sides of deodorizing layer 2 respectively;
Described protective layer adopts grammes per square metre 60g/m
2Spunlace non-woven cloth;
Described deodorizing layer adopts grammes per square metre 30g/m
2The deodorizing powder, each weight ratio of constituents example is 50% active carbon in the deodorizing powder, 50% zeolite;
Described filter course adopts grammes per square metre 40g/m
2The polypropylene melt blown non-woven fabric.
Be provided with adhesive layer 6 between described protective layer 1 and the deodorizing layer 2.
Described filter course 3 also is compounded with first and holds knoisphere 4.Described first holds knoisphere adopts grammes per square metre 20g/m
2Polypropylene spun-bonded non-woven fabrics.
The composite air filtering material of present embodiment only needs on the basis of embodiment 5, and the stack first appearance knoisphere 4 gets final product on filter course 3.
With reference to Fig. 7, a kind of composite air filtering material that is used for filter bag comprises protective layer 1, deodorizing layer 2, filter course 3, and protective layer 1 and filter course 3 are compound with the two sides of deodorizing layer 2 respectively;
Described protective layer adopts grammes per square metre 60g/m
2Spunlace non-woven cloth;
Described deodorizing layer adopts grammes per square metre 30g/m
2The deodorizing powder, each weight ratio of constituents example is 50% active carbon in the deodorizing powder, 50% zeolite;
Described filter course adopts grammes per square metre 40g/m
2The polypropylene melt blown non-woven fabric.
Be provided with adhesive layer 6 between described protective layer 1 and the deodorizing layer 2.
Described filter course 3 also is compounded with first and holds knoisphere 4.Described first holds knoisphere adopts grammes per square metre 20g/m
2Polypropylene spun-bonded non-woven fabrics.
Described first holds knoisphere 4 also is compounded with further in order to improve the second appearance knoisphere 5 of dust containing capacity.Described second holds knoisphere adopts grammes per square metre 20g/m
2Polypropylene spun-bonded non-woven fabrics.
The composite air filtering material of present embodiment only needs on the basis of embodiment 6, holds the second appearance knoisphere 5 that superposes again on the knoisphere 4 first and gets final product.
With reference to Fig. 8, a kind of composite air filtering material that is used for filter bag comprises protective layer 1, deodorizing layer 2, filter course 3, and protective layer 1 and filter course 3 are compound with the two sides of deodorizing layer 2 respectively;
Described protective layer adopts grammes per square metre 60g/m
2Spunlace non-woven cloth;
Described deodorizing layer adopts grammes per square metre 30g/m
2The deodorizing powder, each weight ratio of constituents example is 50% active carbon in the deodorizing powder, 50% zeolite;
Described filter course adopts grammes per square metre 40g/m
2The polypropylene melt blown non-woven fabric.
Be provided with adhesive layer 6 between described protective layer 1 and the deodorizing layer 2.
Described filter course 3 also is compounded with first and holds knoisphere 4.Described first holds knoisphere adopts grammes per square metre 20g/m
2Polypropylene spun-bonded non-woven fabrics.
Described protective layer 1 also is compounded with in order to improve the enhancement layer 8 of protective layer intensity.Described enhancement layer 8 adopts grammes per square metre 30g/m
2Polypropylene spun-bonded non-woven fabrics.
The composite air filtering material of present embodiment only needs on the basis of embodiment 6, and the second appearance knoisphere 8 that superposes again on protective layer 1 gets final product.
Comparative Examples
It is as follows that composite air filtering material that embodiment 1～8 is obtained and general air filting material of the prior art carry out performance comparison:
Table 1
As can be seen from Table 1, the present invention is keeping under the high filtration efficiency condition, and odor removal efficient improves a lot than conventional method, and filtration resistance is low, the dust capaciting ability height.
Claims (10)
1, a kind of composite air filtering material that is used for filter bag is characterized in that comprising protective layer, deodorizing layer, filter course, and protective layer and filter course are compound with the two sides of deodorizing layer respectively;
Described protective layer adopts wood pulp cellulose filter paper, spun-bonded non-woven fabrics or spunlace non-woven cloth, and the material grammes per square metre of protective layer is 10～200g/m
2
Described deodorizing layer adopts one of the following or any combination of material more than two kinds: active carbon, zeolite, sodium acid carbonate, aluminium magensium silicate, silica gel, the material grammes per square metre of deodorizing layer is at 10-300g/m
2
Described filter course adopts melt spraying non-woven fabrics, wood pulp cellulose filter paper or SMS nonwoven, and the material grammes per square metre of filter course is at 10-100g/m
2
2, the composite air filtering material that is used for filter bag according to claim 1 is characterized in that being provided with adhesive layer between described protective layer and the deodorizing layer.
3, the composite air filtering material that is used for filter bag according to claim 1 and 2 is characterized in that being provided with adhesive layer between described filter course and the deodorizing layer.
4, the composite air filtering material that is used for filter bag according to claim 1 and 2, it is characterized in that described filter course also is compounded with first and holds knoisphere, described first holds knoisphere adopts spun-bonded non-woven fabrics, hot-wind nonwoven cloth, wood pulp cellulose filter paper, melt spraying non-woven fabrics or needle punched non-woven fabrics, and first holds the material grammes per square metre of knoisphere at 10-200g/m
2
5, the composite air filtering material that is used for filter bag according to claim 4, it is characterized in that the described first appearance knoisphere also is compounded with further in order to improve the second appearance knoisphere of dust containing capacity, described second holds knoisphere adopts spun-bonded non-woven fabrics, hot-wind nonwoven cloth, wood pulp cellulose filter paper, melt spraying non-woven fabrics or needle punched non-woven fabrics, and first holds the material grammes per square metre of knoisphere at 10-200g/m
2
6, the composite air filtering material that is used for filter bag according to claim 1 is characterized in that described protective layer also is compounded with in order to improve the enhancement layer of protective layer intensity, and enhancement layer adopts spun-bonded non-woven fabrics, and the material grammes per square metre of enhancement layer is at 15-100g/m
2
7, the composite air filtering material that is used for filter bag according to claim 1 is characterized in that: described protective layer adopts grammes per square metre 20～60g/m
2Polypropylene spun-bonded non-woven fabrics, described deodorizing layer adopt by 10～40wt% active carbon, 10～40wt% zeolite, grammes per square metre 20～60g/m that 20～80wt% sodium acid carbonate is formed
2Mixture, described filter course adopts grammes per square metre 15～50g/m
2The polypropylene melt blown non-woven fabric.
8, the described preparation method who is used for the composite air filtering material of filter bag of a kind of claim 3; it is characterized in that comprising the steps: protective layer material is placed discharging frame; spraying applies adhesive; be sprinkling upon the deodorizing pulvis on the adhesive layer uniformly by the dusting machine again; spray paste stick on the deodorizing pulvis then; compound with the filter course material then, at last through the drying unit oven dry.
9, the described preparation method who is used for the composite air filtering material of filter bag of a kind of claim 3; it is characterized in that comprising the steps: protective layer material is placed discharging frame; hot-melt adhesive powder joins in the deodorizing pulvis; be sprinkling upon the deodorizing pulvis of preparing on the adhesive layer uniformly by the dusting machine; enter drying tunnel; with hot-melt adhesive powder fusing, last and the filter course material is compound.
10, the described preparation method who is used for the composite air filtering material of filter bag of a kind of claim 3; it is characterized in that comprising the steps: protective layer material is placed discharging frame; hot-melt adhesive powder joins in the deodorizing pulvis; be sprinkling upon the deodorizing pulvis of preparing on the protective layer uniformly by the dusting machine; compound with the filter course material then, at last through the drying unit oven dry.
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| CN2009100953548A CN101491742B (en) | 2009-01-08 | 2009-01-08 | Composite air filtering material for filtering bag and preparation method thereof |
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