CN203790711U - Filter material of filter and device for preparing filter material of filter - Google Patents
Filter material of filter and device for preparing filter material of filter Download PDFInfo
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- CN203790711U CN203790711U CN201420125892.3U CN201420125892U CN203790711U CN 203790711 U CN203790711 U CN 203790711U CN 201420125892 U CN201420125892 U CN 201420125892U CN 203790711 U CN203790711 U CN 203790711U
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- 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
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
- B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
- B01D46/523—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material with means for maintaining spacing between the pleats or folds
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The utility model provides a filter material of a filter and a device for preparing the filter material of the filter. According to the material and the device, the reduction of the air permeability of a porous layer during the preparation of the filter material of the filter can be inhibited, and the pressure loss can be relatively low. Each interval maintaining part formed on one surface side of a raw material of the filter material and each interval maintaining part formed on the other surface side of the raw material of the filter material are formed in a mode of being overlapped at an interval of an adhesion part in each flat plate part, and are formed in a mode of adhering the adhesion parts mutually.
Description
Technical field
The utility model relates to a kind of for trapping the filter filtration material that is filtered the contained particle of gas, particularly relates to a kind ofly to comprising for the former material of filter material that traps the porous layer of this particle and be bonded in the substrate layer of this porous layer, carrying out the filter filtration material that kilting processes.
Background technology
In the past, as the filter filtration material of use in the toilet etc. of factory that manufactures semiconductor, liquid crystal, the former material of filter material that is known to be filtered for trapping comprising the porous layer (such as the porous layer consisting of polytetrafluoroethylene (PTFE) etc.) of the contained particle of gas and is bonded in the substrate layer (such as nonwoven etc.) of at least one face of this porous layer carries out the filter filtration material that kilting processes.
As by porous layer and the bonding method of substrate layer, be known to for example by the method for porous layer and substrate layer heat lamination.Specifically, be known to following methods: use and to there is the substrate layer that thermoplastic raw material form, on one side by porous layer and substrate layer stacked state under heat, on one side by the method for porous layer and substrate layer crimping; By under the warmed-up state of this substrate layer by the method (with reference to patent documentation 1 and patent documentation 2) of this substrate layer and the stacked and crimping of porous layer.In said method, the part by the substrate layer that made to soften enters into the anchor effect that the hole of porous layer produces, and porous layer and substrate layer is bonding.
Yet, as mentioned above, utilizing heat lamination by porous layer and substrate layer bonding in the situation that, a part for the substrate layer having softened can enter into the hole of porous layer and the hole of porous layer is inaccessible.Therefore, the gas permeability of porous layer is reduced, thereby become the filter filtration material that the pressure loss is higher.
Patent documentation 1: TOHKEMY 2004-990 communique
Patent documentation 2: TOHKEMY 2009-101254 communique
Utility model content
Therefore, problem of the present utility model is, the reduction of the gas permeability that can be suppressed at the porous layer while manufacturing filter filtration material is provided and makes filter filtration material that the pressure loss is lower and the manufacturing installation of this filter filtration material.
The utility model provides a kind of filter filtration material, it forms folded shape by the former material of filter material in many places bending and forms, the former material of this filter material comprises for trapping the porous layer that is filtered the contained particle of gas and the substrate layer that is bonded at least one face of this porous layer, this filter filtration material comprises: bend, and it is by forming the former material of above-mentioned filter material along a direction is crooked, flat part, it is by the region except bend in the former material of filter material is formed to tabular forming, and a plurality of intervals maintaining part, it is formed between each flat part in the one side side of the former material of filter material and between each flat part in another side side and keeps the adjacent mutual interval of bend, above-mentioned flat part has porous layer and the bonding and bonding part that forms of substrate layer, and porous layer and substrate layer do not have bonding non-bonding part, each interval maintaining part that is formed at the one side side of the former material of above-mentioned filter material forms in the overlapping mode of the bonding part in each flat part with each interval maintaining part that is formed at the another side side of the former material of filter material, and so that the mutual bonding mode of bonding part is formed.
Adopt this structure, by form non-bonding part on flat part, thereby compare with the situation that forms bonding part on whole flat part, can obtain the filter filtration material that the pressure loss is lower.Specifically, at non-bonding part, porous layer and substrate layer are not glued together, and therefore, following situation can not occur: a part for substrate layer enters into the hole of porous layer and this hole is inaccessible or for porous layer and the bonding bonding agent of substrate layer is inaccessible by the hole of porous layer.Therefore, the gas permeability of non-bonding part is higher than the gas permeability of bonding part.
In addition, because the gas that is filtered through filter filtration material mainly sees through flat part, therefore, by making non-bonding part be formed at flat part, compare with the situation that is formed with bonding part on whole flat part, can make the gas permeability of filter filtration material uprise.As mentioned above, by non-bonding part is set at flat part, can obtain the filter filtration material that the pressure loss is lower.
In addition, this filter filtration material expands under the state that such direction (being also denoted as below draw direction) stretched and uses at the interval by mutual to flat part sometimes, even if but in this case, also can prevent that porous layer is separated partly with substrate layer.Specifically, when filter filtration material is stretched along draw direction, the interval maintaining part (being also denoted as below another side side interval maintaining part) that is formed at the interval maintaining part (be also denoted as below one side side interval maintaining part) of the one side side of the former material of filter material and is formed at the another side side of the former material of filter material is opened along draw direction.Now, in one side side interval maintaining part and another side side interval maintaining part in the overlapping region of flat part (being also denoted as below maintaining part overlapping portion, interval), the former material of filter material that forms flat part by one side side interval maintaining part to a side stretching time by another side side interval maintaining part to another side side stretching.Therefore,, in maintaining part overlapping portion, interval, porous layer and substrate layer are pulled open to such power and can put on the former material of filter material, thereby likely between porous layer and substrate layer, form space.
Yet, one side side interval maintaining part and another side side interval maintaining part form in the overlapping mode of the bonding part in flat part, and so that the mutual bonding mode of bonding part is formed, thus, when even one side side interval maintaining part and another side side interval maintaining part are separated along draw direction, also can utilize bonding part to maintain porous layer between one side side interval maintaining part and another side side interval maintaining part and the tacky state between substrate layer.Thus, can prevent that porous layer and substrate layer are opened, thereby can be suppressed at, between porous layer and substrate layer, form space and the pressure loss of filter filtration material is increased.
In addition, preferably, above-mentioned bonding part forms continuously or by phased manner along the direction of intersecting with above-mentioned bend, and above-mentioned interval maintaining part is formed on the inner side of the bonding part in each flat part, and along the direction of intersecting with bend continuously or formation by phased manner.
In addition, the contact area between preferred above-mentioned bonding part and above-mentioned interval maintaining part be bonding part area 10%～100%.And, preferably by above-mentioned porous layer and above-mentioned substrate layer heat lamination are formed to bonding part.
The utility model provides a kind of manufacturing installation of filter filtration material, it is the manufacturing installation that forms the filter filtration material of above-mentioned filter filtration material, it is configured to, configured bonding agent in the overlapping mode of above-mentioned bonding part in the region that becomes above-mentioned flat part in being formed at the former material of above-mentioned filter material on two faces of the former material of filter material after, make the former material of filter material bend to folded shape and form a plurality of bends and a plurality of flat part, and, between each flat part and each flat part in another side side in the one side side of the former material of filter material, the bonding agent of the one side side of the former material of filter material is engaged each other, the bonding agent of the another side side of the former material of filter material is engaged each other, thereby in the one side side of the former material of filter material and another side side to form interval maintaining part across the overlapping mode of bonding part.
As mentioned above, adopt the utility model, the reduction of the gas permeability of the porous layer in the time of can suppressing to manufacture filter filtration material and can make the pressure loss lower.
Accompanying drawing explanation
Fig. 1 means the stereogram of the filter filtration material of present embodiment.
Fig. 2 means stereogram and the local amplification view of the former material of filter material that the filter filtration material of present embodiment is used.
Fig. 3 (a) is the cutaway view that the filter filtration material that utilizes the face intersecting with flat part to dissect this embodiment forms, and Fig. 3 (b) is that utilization dissects along the length direction of filter filtration material and the face of width extension the cutaway view that maintaining part overlapping portion, interval forms.
Fig. 4 is the cutaway view of the filter filtration material of present embodiment.
Fig. 5 (a) means the stereogram of the former material of filter material of the filter filtration material that forms another embodiment, and Fig. 5 (b) means the cutaway view of the interval maintaining part of the filter filtration material that forms this embodiment.
Description of reference numerals
1, filter filtration material; 1a, bend; 1b, flat part; 2, the former material of filter material; 2a, porous layer; 2b, substrate layer; 2c, bonding part; 2d, non-bonding part; 3, interval maintaining part; 3a, flank; A1, adhesion area; A2, crooked presumptive area; A3, flat part presumptive area; B1, maintaining part overlapping portion, interval.
The specific embodiment
Below, with reference to Fig. 1～Fig. 4, embodiment of the present utility model is described.In addition, in following accompanying drawing, to identical or suitable part mark identical with reference to Reference numeral, do not repeat its explanation.
As shown in Figure 1, the filter filtration material 1 of present embodiment is by the former material 2 of filter material that is filtered the contained particle of gas for trapping is formed to the filter filtration material (being also denoted as below kilting processing) that folded shape forms in many places bending.In addition, filter filtration material 1 comprises: a plurality of bend 1a, and the plurality of bend 1a is by forming the former material 2 of filter material along a direction is crooked; A plurality of flat part 1b(are the flat position between bend 1a, 1a specifically), the plurality of flat part 1b is by the region outside this bend 1a is formed to tabular forming; And a plurality of intervals maintaining part 3, the plurality of interval maintaining part 3 is formed between each flat part 1b in the one side side of the former material 2 of filter material and each flat part 1b in another side side and keeps the adjacent mutual interval of bend 1a, 1a.
Interval maintaining part 3 is configured between relative a pair of opposite face (being also denoted as below filter material opposite face) 1c, the 1c in adjacent flat part 1b, 1b and is bonded on each filter material opposite face 1c, 1c.Thus, adjacent flat part 1b, 1b(is a pair of filter material opposite face 1c, 1c specifically) via interval maintaining part 3, be connected.
Interval maintaining part 3 is by rib (Japanese: ビ ー De) 3a of portion, 3a are linked and formed each other, this flank 3a, 3a on a pair of filter material opposite face 1c, 1c respectively adhesive-applying form.Specifically, the mode with the side, peak across each bend 1a is wire adhesive-applying and forms flank 3a.Then, by the position between a pair of filter material opposite face 1c, 1c in adjacent flank 3a, 3a is linked and forms interval maintaining part 3 each other.Bonding agent as forming flank 3a, is not particularly limited, and for example, can use PUR.As the thickness of flank 3a, can suitably set according to the interval between each bend 1a of expectation.
In addition, the empty standard width of a room in an old-style house of direction (length direction) extending along each bend 1a is formed with a plurality of (being 3 in the present embodiment) interval maintaining part 3 every ground.Specifically, in the corresponding mode of each flank in a plurality of flank 3a in two bend 1a, 1a with adjacent, that form every ground along the empty standard width of a room in an old-style house of the length direction of a bend 1a, along the empty standard width of a room in an old-style house of length direction of another bend 1a, every ground, form a plurality of flank 3a.And, by adjacent flank 3a, 3a are linked each other, thereby every ground, form a plurality of intervals maintaining part 3 along the empty standard width of a room in an old-style house of length direction of each bend 1a.
As shown in Figure 2, under the state that carries out kilting first being processed, to form with another direction of a direction quadrature be length direction to the former material 2 of above-mentioned filter material.In addition, the former material 2 of filter material both can be configured to and by idiomorphism, become strip and rolled-up state and unreel and become sheet, can be also the monolithic body shape that forms specific length.In addition, the former material 2 of filter material comprises for trapping and is filtered the porous layer 2a of the contained particle of gas and has gas permeability and be laminated in the substrate layer 2b of at least one face of this porous layer 2a.In the present embodiment, substrate layer 2b is bonded in to a face of porous layer 2a and forms the former material 2 of filter material.
The sheet material (being also denoted as below Porous sheet) that use can trap the Porous of above-mentioned particle forms above-mentioned porous layer 2a.As this Porous sheet, be not particularly limited, can suitably select according to the purposes of filter filtration material 1.As this Porous sheet, can use and for example polytetrafluoroethylene (PTFE) be formed to the PTFE sheet that sheet forms.Method as forming this PTFE sheet, for example, can adopt following method.
Specifically, to adding aqueous lubricant in PTFE fine powder and form the mixture of paste.As aqueous lubricant, be not particularly limited, as long as can give appropriate wetability to mixture surface, if aqueous lubricant can utilize extraction process, heat treated and be removed, particularly preferably.For example, as aqueous lubricant, can use the hydrocarbons such as fluid paraffin wax, naphtha, white oil etc.Addition as aqueous lubricant, is not particularly limited, and preferably, for example, with respect to PTFE fine powder 100 weight portions, is 5 weight portion～50 weight portions.
Then, said mixture preform is formed to preform.Preferably at aqueous lubricant, can under the pressure of the degree of mixture separation, not carry out preform.Next, by the preform extrusion molding, the roll forming that obtain are configured as to sheet.Afterwards, by by the formed body uniaxial tension obtaining or biaxial stretch-formed this formed body porous materialization that makes, become PTFE sheet.In addition, as stretching condition, be not particularly limited, for example, be preferably, under the temperature environment of 30 ℃～400 ℃, for each axle, stretching ratio is 1.5 times～200 times.In addition, the in the situation that of not firing processing in stretching process, preferably after stretching process, with temperature more than fusing point, fire PTFE sheet.
Above-mentioned substrate layer 2b is used the sheet material (being also denoted as below gas permeability sheet) with gas permeability to form.As gas permeability sheet, be not particularly limited, can use such as nonwoven, spin cloth, net etc.Particularly, make porous layer 2a(Porous synusia) and substrate layer 2b(gas permeability sheet) thermal welding (heat lamination) in the situation that, preferably use the gas permeability sheet forming by thering are thermoplastic raw material.For example, can use the composite etc. of the synthetic fibers such as polyolefin (polyethylene, polypropylene etc.), polyamide, polyester, aromatic polyamide, acrylic acid, polyimides and above-mentioned substance.In addition, if gas permeability sheet consists of single component, likely make the melting of whole gas permeability sheet and can not keep the form of substrate layer 2b, therefore, preferably use and take the gas permeability sheet that the two kinds of poor compositions that have fusing point are raw material.For example, can be by the core sheath fiber of PET/PE, the blending nonwoven of PP/PE etc. as gas permeability sheet.
The former material 2 of filter material is by by local bonding formation of porous layer 2a and substrate layer 2b.Specifically, the non-bonding part 2d that the former material 2 of filter material has a bonding part 2c part of a part of porous layer 2a and substrate layer 2b is bonding and that form and consists of the region (that is, porous layer 2a and substrate layer 2b do not have bonding region) beyond this bonding part 2c.And, in bonding part 2c, be formed with the face of the face-off in porous layer 2a and substrate layer 2b carried out to bonding region (being also denoted as below adhesion area) A1 each other.
Bonding part 2c and adhesion area A1 form along the length direction (being in the present embodiment banded) of the former material 2 of filter material.And bonding part 2c and adhesion area A1 form continuously to spread all over the mode of the roughly total length on the length direction of the former material 2 of filter material.In addition, the empty standard width of a room in an old-style house of width along the former material 2 of filter material is formed with a plurality of (being 3 in the present embodiment) bonding part 2c and adhesion area A1 every ground.In addition, bonding part 2c and adhesion area A1 along with add the direction that region (being also denoted as the below crooked presumptive area) A2 that is bent man-hour intersects (more particularly, the mode to intersect with region A2) and form the former material 2 of filter material being carried out to kilting.Thus, add man-hour the former material 2 of filter material is carried out to kilting, a part of bonding part 2c and adhesion area A1 is formed on the inner side of bend 1a.
On the other hand, non-bonding part 2d is formed at bonding part 2c each other and is formed between the both ends on width and bonding part 2c in the former material 2 of filter material.Non-bonding part 2d forms along the length direction (being banded in present embodiment) of the former material 2 of filter material.And non-bonding part 2d forms continuously to spread all over the mode of the roughly total length on the length direction of the former material 2 of filter material.In this non-bonding part 2d, porous layer 2a and substrate layer 2b are stacked with the state being adjacent to.
As the method that forms the former material 2 of filter material as described above, be not particularly limited, for example can adopt following method: configure PUR, pressure sensitive bonding agent being used to form the Porous sheet of porous layer 2a and being used to form between the gas permeability sheet of substrate layer 2b, by Porous sheet and the crimping of gas permeability sheet.Or, can adopt gas permeability sheet is heated after softening the method for this gas permeability sheet and Porous sheet crimping (being in other words heat lamination).
As by the method for Porous sheet and the crimping of gas permeability sheet, be not particularly limited, for example, can adopt following method: one side by stacked being delivered between pair of rolls member (not shown) of Porous sheet and gas permeability sheet one side, and by Porous sheet and the crimping continuously of gas permeability sheet.Or, can adopt and will under the Porous sheet of monolithic body shape and the stacked state of gas permeability sheet, be disposed between a pair of plate (not shown) and each monolithic body is carried out to the method for crimping by phased manner.
When by Porous sheet and gas permeability sheet heat lamination, can use by surface temperature and be set to the hot-rolling of melting temperature of gas permeability sheet and the pair of rolls member that the backing roll that Porous sheet and gas permeability sheet supported with stacked state from below forms.And, by by Porous sheet and gas permeability sheet heat lamination, thereby make gas permeability sheet softening and enter into the hole of Porous sheet, utilize anchor effect make Porous sheet and gas permeability sheet bonding and form bonding part 2c and adhesion area A1.
In addition, the method that is the banded bonding part 2c of formation and adhesion area A1 as the length direction along the former material 2 of filter material, be not particularly limited, can be configured to, for example, on the surface of hot-rolling, along direction of rotation, convex shaped part is set, between this convex shaped part and another roller component by Porous sheet and the crimping of gas permeability sheet.Thus, gas permeability sheet is only softening in the position contacting with the convex shaped part of hot-rolling, and by Porous sheet and gas permeability sheet heat lamination.Thus, along the length direction of the former material 2 of filter material, be the banded bonding part 2c of formation and adhesion area A1, and be the banded non-bonding part 2d of formation.
Forming in the device of filter filtration material 1 with the former material 2 of filter material forming as described above, first, the former material 2 of filter material is carried out to kilting processing.Specifically, by the former material 2 of filter material, along the width with length direction quadrature, in many places, (that is, each crooked presumptive area A2) is crooked and form folded shape.Thus, in the former material 2 of filter material, form a plurality of bend 1a and a plurality of flat part 1b in filter filtration material 1.
Then, adhesive-applying and form flank 3a on two faces of the former material 2 of filter material.Specifically, the former material 2 of the filter material that forms folded shape is stretched as to the flat condition before kilting processing, and on two faces of the former material 2 of filter material adhesive-applying and form flank 3a.This flank 3a is formed at the inner side of the bonding part 2c of the former material 2 of filter material.In addition, flank (being also denoted as below a side rib portion and the another side side rib portion) 3a that is formed on one side side and the another side side of the former material 2 of filter material is formed with respectively a plurality of every ground along the empty standard width of a room in an old-style house of length direction of the former material 2 of filter material, and every ground, be formed with a plurality of (being 3 in the present embodiment) along the empty standard width of a room in an old-style house of width of the former material 2 of filter material.In addition, on 3a of side rib portion and the another side side rib 3a of portion are formed on roughly same straight line along the length direction of the former material 2 of filter material.
In addition, the shape as flank 3a, is not particularly limited, and in the present embodiment, along the length direction of the former material 2 of filter material, forms wire.In addition, flank 3a be formed on the face that becomes peak side when having formed bend 1a in crooked presumptive area A2 near.Specifically, flank 3a with the former material 2 of filter material in the crooked presumptive area A2 mode of intersecting form.In the present embodiment, being configured to the flank 3a that forms wire intersects at its substantial middle portion and crooked presumptive area A2.In addition, flank 3a is formed on while having formed bend 1a becomes on the face of peak side.That is to say, the crooked presumptive area A2 and the 3a of side rib portion that are configured in adjacent crooked presumptive area A2, A2 intersect and another crooked presumptive area A2 and the another side side rib 3a of portion intersection.
In addition, as the crossover location from flank 3a and crooked presumptive area A2, till the length of the end of flank 3a is not particularly limited, be preferably the length that rib coating length ratio is greater than 50%.Rib coating length ratio refers to, from the crossover location of flank 3a and crooked presumptive area A2 till the length of an end of flank 3a with respect to the ratio of the distance adjacent crooked presumptive area A2, A2.That is to say, flank 3a from and the crossover location of crooked presumptive area A2 be formed into the position of the central portion that surpasses region (that is, becoming the region of flat part 1b) (being designated as the below flat part presumptive area) A3 between adjacent crooked presumptive area A2, A2.In addition, the distance between adjacent crooked presumptive area A2, A2 refers to, links the distance of the central portion of a crooked presumptive area A2 and the central portion of another crooked presumptive area A2 along the length direction of the former material 2 of filter material.
In addition, 3a of side rib portion and the another side side rib 3a of portion are being flat part presumptive area A3 specifically across the former material 2(of filter material) overlapping mode forms.More particularly, with flank 3a in 3a of side rib portion intersecting with adjacent crooked presumptive area A2, A2 respectively and the another side side rib 3a of portion, that be formed on same straight line along the length direction of the former material 2 of filter material, in flat part presumptive area A3, across the overlapping mode of the former material 2 of filter material, form each other.In addition the end that, 3a of side rib portion and the another side side rib 3a of portion are positioned at the inner side of flat part presumptive area A3 with them forms across the overlapping mode of the former material 2 of filter material each other.In addition, as 3a of side rib portion in flat part presumptive area A3 and the overlapping position of the another side side rib 3a of portion, be not particularly limited, be preferably along the substantial middle portion in the direction of the length direction of the former material 2 of filter material.
By forming as described above a 3a of side rib portion and the another side side rib 3a of portion, thereby in a 3a of side rib portion and the overlapping region of the another side side rib 3a of portion, the bonding part 2c of the former material 2 of filter material is between the one side side rib 3a of portion and the another side side rib 3a of portion.In other words, 3a of side rib portion and the another side side rib 3a of portion form in the overlapping mode of bonding part 2c across the former material 2 of filter material.
As for forming the bonding agent of flank 3a, be not particularly limited, for example can use PUR.As the temperature when PUR coating is on the former material 2 of filter material, according to the composition of PUR and difference is for example preferably 100 ℃～250 ℃, more preferably 140 ℃～230 ℃.
The former material 2 of the filter material that is formed with as described above flank 3a is again crooked and form folded shape in each crooked presumptive area A2.Thus, as shown in Fig. 3 (a) and Fig. 3 (b), form a plurality of bend 1a and a plurality of flat part 1b, and the position between each flat part 1b in each flank 3a engages each other and forms interval maintaining part 3, thereby becomes filter filtration material 1.Therefore, in the situation that use PUR as for forming the bonding agent of flank 3a, preferably, when PUR softens to the degree that PUR can engage each other (in the open time) the former material 2 of filter material is formed to folded shape again.
In addition, in the following description, the size in the suitable direction of the length direction with the former material 2 of filter material in filter filtration material 1 is made as to the length L 1 of filter filtration material 1.In addition, the size in the suitable direction of the width with the former material 2 of filter material in filter filtration material 1 is made as to the width L2 of filter filtration material 1.In addition, the one side side with the former material 2 of filter material become to bend 1a that the mode of peak side forms and become with the another side side of the former material 2 of filter material the height L3 that interval between the bend 1a that the mode of peak side forms is made as filter filtration material 1.
In the filter filtration material 1 forming as described above, in one side side and the another side side of the former material 2 of filter material, be formed with respectively interval maintaining part 3.In addition, the side of each interval maintaining part 3 the height L3 direction of filter filtration material 1 forms linearity towards opposite side.In addition, each interval maintaining part 3(of the one side side of filter filtration material 1 is also denoted as one side side interval maintaining part 3 below) and each interval maintaining part 3(of another side side be also denoted as below another side side interval maintaining part 3) along the alternately arrangement of length L 1 direction (being specifically on the straight line alongst extending) of filter filtration material 1.
And one side side interval maintaining part 3 and another side side interval maintaining part 3 are being bonding part 2c specifically across flat part 1b() overlapping mode forms.Specifically, the end that one side side interval maintaining part 3 and another side side interval maintaining part 3 is positioned at the center side of flat part 1b with them is bonding part 2c across flat part 1b(each other specifically) overlapping mode forms.In addition the substantial middle portion in the height L3 direction that, one side side interval maintaining part 3 and another side side interval maintaining part 3 are configured at filter filtration material 1 is bonding part 2c across flat part 1b(specifically) overlapping.Specifically, be configured to from the coupling position of bend 1a and flat part 1b till the length of an end of each interval maintaining part 3 is greater than 50% of length coupling position flat part 1b and the 1a of pair of curved portion, 1a, thus, be configured to one side side interval maintaining part 3 and the substantial middle portion of another side side interval maintaining part 3 in the height L3 of filter filtration material 1 direction overlapping.
By making as described above one side side interval maintaining part 3 and another side side interval maintaining part 3 overlapping, along length L 1 direction of filter filtration material 1, be formed with each interval maintaining part 3 across the overlapping position of flat part 1b (being also denoted as below maintaining part overlapping portion, interval) B1.This maintaining part overlapping portion, interval B1 is formed on the substantial middle portion in the height L3 direction of filter filtration material 1.In addition, at the width L2 direction overhead of filter filtration material 1 standard width of a room in an old-style house, every ground, be formed with a plurality of (being 3 places specifically) maintaining part overlapping portion, interval B1.Between each maintaining part overlapping portion, interval B1 in the width L2 of filter filtration material 1 direction, do not form interval maintaining part 3, between flat part 1b, be formed with space.
The filter filtration material 1 with said structure both can configure and be used with the mode that the flow direction that is filtered gas intersects with flat part 1b, also can height L3 direction along be filtered gas flow direction configure and used.And being filtered gas can be mainly the non-bonding part 2d in flat part 1b through the flat part 1b(in filter filtration material 1 specifically).
In addition, also can after the mode that becomes the shape of regulation to have the profile (shape of seeing from height L3 direction) of the filter filtration material 1 of said structure forms this filter filtration material 1, this filter filtration material 1 be used with the state being housed in framework (not shown).Shape as this framework, so long as can accommodate the shape of filter filtration material 1, just there is no particular limitation, such as listing the round-shaped etc. of the inside dimension internal diameter that to be that 1180mm * 1180mm, outside dimension are that 1220mm * 1220mm, thickness are 75mm rectangular-shaped, to have regulation.In addition, the material as framework, is not particularly limited, and can use the material of aluminum.Between filter filtration material 1 and framework, be filled with caulking agent.As this caulking agent, for example, can use two-liquid type epoxy caulking agent (being that Henkel Corp. manufactures the two-liquid type epoxy caulking agent that Macroplast8104MC-18 and Macroplast UK5400 are mixed with the ratio of 3:1 specifically).
As mentioned above, adopt filter filtration material of the present utility model and its manufacturing installation, can be suppressed at the porous layer while manufacturing filter filtration material gas permeability reduction and can make the pressure loss lower.
That is, for above-mentioned filter filtration material 1, add man-hour the former material 2 of filter material is carried out to kilting, can prevent that porous layer 2a and substrate layer 2b from relative dislocation occurring.Specifically, add man-hour the former material 2 of filter material is carried out to kilting, can the such direction (being the direction along the opposite face of porous layer 2a and substrate layer 2b specifically) of relative dislocation occur to porous layer 2a and substrate layer 2b and apply power to the crooked presumptive area A2 of the former material 2 of filter material.
Yet, by crooked presumptive area A2 and bonding part 2c are intersected, thereby in crooked presumptive area A2, make the relative position relation between porous layer 2a and substrate layer 2b fix.Therefore, add man-hour carrying out kilting, even crooked presumptive area A2 is applied with and makes porous layer 2a and substrate layer 2b produce the such power of relative dislocation, also can prevent porous layer 2a and the relative dislocation of substrate layer 2b generation.
By form non-bonding part 2d on flat part 1b, thereby compare with the situation that forms bonding part 2c on whole flat part 1b, can obtain the filter filtration material 1 that the pressure loss is lower.Specifically, at non-bonding part 2d, porous layer 2a and substrate layer 2b are not glued together, therefore, can there is not following situation: a part of substrate layer 2b enters into the hole of porous layer 2a and this hole is inaccessible or for porous layer 2a and the bonding bonding agent of substrate layer 2b is inaccessible by the hole of porous layer 2a.Therefore, the gas permeability of non-bonding part 2d is higher than the gas permeability of bonding part 2c.
In addition, because the gas that is filtered through filter filtration material mainly sees through flat part 1b, therefore, by making non-bonding part 2d be formed at flat part 1b, compare with the situation that is formed with bonding part 2c on whole flat part 1b, can make the gas permeability of filter filtration material uprise.As mentioned above, by non-bonding part 2d is set at flat part 1b, can obtain the filter filtration material 1 that the pressure loss is lower.Can use Manostar differential pressure gauge (minimum scale: 1.0Pa) or electric differential pressure gauge (precision: 1.0Pa) measure the pressure loss.
In addition, as shown in Figure 4, sometimes filter filtration material 1 can be expanded to the mutual interval of flat part 1b that such direction (being also denoted as below draw direction) stretches or be used being expanded to the mutual interval of flat part 1b under the state that such direction stretched when processing, even if but in this case, also can prevent that porous layer 2a is separated partly with substrate layer 2b.Specifically, when filter filtration material 1 is stretched along draw direction, one side side interval maintaining part 3 and another side side interval maintaining part 3 are opened along draw direction (be that simultaneously side interval maintaining part 3 is to directions X specifically, another side side interval maintaining part 3 is to Y-direction).Now, in the B1 of maintaining part overlapping portion, interval, former material 2 quilts of filter material that form flat part 1b are stretched to Y-direction by another side side interval maintaining part 3 when simultaneously side interval maintaining parts 3 stretch to directions X.Therefore,, at maintaining part overlapping portion, interval B1, porous layer 2a and substrate layer 2b are pulled open to such power and can put on the former material 2 of filter material, thereby likely between porous layer 2a and substrate layer 2b, form space.
Yet, one side side interval maintaining part 3 and another side side interval maintaining part 3 form in the overlapping mode of bonding part 2c in flat part 1b, and so that the mutual bonding mode of bonding part 2c is formed, thus, when even one side side interval maintaining part 3 and another side side interval maintaining part 3 are separated along draw direction, also can utilize bonding part 2c to maintain porous layer 2a between one side side interval maintaining part 3 and another side side interval maintaining part 3 and the tacky state between substrate layer 2b.Thus, can prevent that porous layer 2a and substrate layer 2b are opened, thereby can be suppressed at, between porous layer 2a and substrate layer 2b, form space and the pressure loss of filter filtration material 1 is increased.
In addition, filter filtration material of the present utility model and its manufacturing installation are not limited to above-mentioned embodiment, can in the scope that does not depart from purport of the present utility model, carry out various changes.In addition, self-evident, structure, method that also can at random adopt above-mentioned a plurality of embodiments etc. combines (also the structure of 1 embodiment, method etc. can be applied to structure, method of another embodiment etc.), and, also can at random select the structure, method etc. of following various modifications and be applied to structure, method of above-mentioned embodiment etc.
For example, in the above-described embodiment, bonding part 2 forms continuously to spread all over the mode in the whole region on the length direction of the former material 2 of filter material, but be not limited thereto, for example, as shown in Fig. 5 (a), can be also that the length direction along the former material 2 of filter material forms bonding part 2e by phased manner.For example, bonding part 2e is not in the situation that intersect and be formed at the inner side of flat part presumptive area A3 with the crooked presumptive area A2 of the former material 2 of filter material.And 3a of side rib portion and the another side side rib 3a of portion are formed at the inner side of bonding part 2e.Thus, when forming filter filtration material 1, as shown in Fig. 5 (b), the position (being the central portion of flat part 1b specifically) separating with bend 1a in flat part 1b forms interval maintaining part 3 '.
In addition, in the above-described embodiment, the former material 2 of filter material is crooked in many places along width, but is not limited thereto, also can be that the central part of the former material of filter material that makes to be formed monolithic body shape is crooked and form cone shape filter filtration material in many places with radiation wire.
In addition, in the above-described embodiment, use the former material 2 of the filter material being formed by porous layer 2a and substrate layer 2b to form filter filtration material 1, but be not limited thereto, for example, also can form filter filtration material with the former material of filter material that two faces that substrate layer 2b are bonded in to porous layer 2a form.Or, also can form filter filtration material with the former material of filter material that two faces that porous layer 2a are bonded in to substrate layer 2b form.
In addition, in the above-described embodiment, the empty standard width of a room in an old-style house of length direction along the former material 2 of filter material is formed with a plurality of 3a of side rib portion and the another side side rib 3a of portion every ground, but be not limited thereto, also can (that is, be wire) continuously along the length direction of the former material 2 of filter material and form a 3a of side rib portion and the another side side rib 3a of portion.
Embodiment
Below, embodiment of the present utility model is described.
Embodiment 1
1. Porous sheet
As Porous sheet, used PTFE sheet.Specifically, with respect to PTFE fine powder (Daikin Industries company manufactures, trade name: F104) 100 weight portions, add aqueous lubricant (n-decane) 19 weight portions and make the mixture of paste.Then, by after by this mixture preform by this mixture extrusion molding, obtained extruding the flat formed body that direction becomes length direction.Afterwards, make its thickness reach 0.4mm this flat formed body rolling.Then, in order to remove aqueous lubricant from flat formed body, in drying oven, with 150 ℃, this formed body is heated.Afterwards, flat formed body is alongst stretched 15 times under the environment of 280 ℃, and along the width with length direction quadrature, stretch 15 times under the environment of 100 ℃, obtained PTFE sheet.
2. gas permeability sheet
As gas permeability sheet, used PET/PE core sheath nonwoven (manufacture of You Nijia company, the trade name: T1003WDO) of strip.
3. make the former material of filter material
In the mode of the length direction of above-mentioned Porous sheet and the length direction almost parallel of gas permeability sheet on two faces of gas permeability sheet in laminated porous, above-mentioned Porous sheet and above-mentioned gas permeability sheet are transported between pair of rolls member (above-mentioned hot-rolling and above-mentioned backing roll), thereby Porous sheet and gas permeability sheet are glued together and make the former material 2 of filter material as shown in Figure 2.Specifically, as hot-rolling, use the hot-rolling with 3 convex shaped parts that form along direction of rotation, only between this convex shaped part and backing roll, Porous sheet and gas permeability sheet are formed to bonding part 2c with 200 ℃ of heat lamination.
This bonding part 2c one and be the roughly whole region on the length direction that is formed at the former material 2 of filter material bandedly.In addition, the width of bonding part 2c is 1cm, between the central portion on the width of adjacent each bonding part 2c, is spaced apart 5cm.In addition, the thickness of bonding part 2c is 0.32mm, and the thickness of non-bonding part 2d is 0.45mm.In addition the gross area that, makes bonding part 2c is 20% with respect to the ratio (lamination ratio) of the area of the former material 2 of filter material.In addition, as each roller component, using external diameter (from axle center to the diameter of the apical position of convex shaped part) is the roller component of 200mm.In addition, the transporting velocity of each sheet is 10m/min, and pressure when bonding is 0.8MPa.
4. kilting processing
After former material 2 has carried out kilting processing to the filter material obtaining, form as shown in Figure 2 flank 3a.Specifically, in the inner side of each bonding part 2c, along the length direction of the former material 2 of filter material, be formed with a plurality of flank 3a, and each flank 3a forms in the mode of intersecting with crooked presumptive area A2.In addition, 3a of side rib portion and the another side side rib 3a of portion are to form across the overlapping mode of flat part 1b.Specifically, the end of the end of a 3a of side rib portion and the another side side rib 3a of portion forms in the overlapping mode of bonding part 2c in flat part 1b.Then, one side side and another side side in the former material 2 of filter material, by between flat part 1b, 1b, flank 3a, 3a being linked up each other, thereby form interval maintaining part 3 and make such filter filtration material 1 shown in Fig. 1, Fig. 3 (a) and Fig. 3 (b).As the bonding agent (PUR) that is used to form flank 3a, the Macromelt6202(that has used Henkel Corp. to manufacture is polyamide-based).
5. calculating pressure loses climbing
The mensuration that the Porous the sheet respectively former material 2 of filter material, the former material 2 of this filter material being used and gas permeability sheet have carried out the pressure loss.Specifically, use Manostar differential pressure gauge (minimum scale: be 1.0Pa) 100cm to measuring effective area
2and pressure loss when superficial velocity is 5.3cm/sec is measured.Then, calculate the summation of the pressure loss of Porous sheet and gas permeability sheet with respect to the ratio of the pressure loss of the former material 2 of filter material, and using this ratio as pressure loss climbing.Pressure loss climbing is illustrated in following table 1.
6. measure arresting efficiency
Filter filtration material 1 is housed in to the inner side of framework (inside dimension is that 1180mm * 1180mm, outside dimension are the aluminum frame that 1220mm * 1220mm, thickness are 75mm), and uses two-liquid type epoxy ca(u)lk material that the clearance seal between framework and filter filtration material 1 is made to filter unit.In addition, as two-liquid type epoxy ca(u)lk material, the two-liquid type epoxy ca(u)lk material that uses Macroplast8104MC-18 that Liao Jiang Henkel Corp. manufactures and Macroplast UK5400 to mix with the ratio of 3:1.Then, use this filter unit to carry out the mensuration of arresting efficiency.Measurement result is illustrated in following table 1.
When measuring arresting efficiency, make to contain the PAO(poly-alpha-olefin of 107/more than L conduct trapping particle) gas permeation filter unit (being between the flat part 1b of filter filtration material 1 specifically).Then, utilize particle collector to measure seeing through the PAO concentration of the gas after test sample, and use following formula (1) to calculate arresting efficiency (%).In addition, superficial velocity is 0.4 ± 0.1m/sec, and downstream probe speed (Japanese: プ ロ ー Block speed) is 22mm/sec.PAO particle is in the scope of 0.1 μ m～0.2 μ m.
Arresting efficiency (%)=and 1-(downstream concentration/upstream concentration) } * 100...(1)
In addition, use and repeated 10 times until the filter filtration material 1 of the flexure operation (along draw direction, filter filtration material being applied the action of power) of the both ends contact in length L 1 direction is made as described above filter unit and measured arresting efficiency.Measurement result is illustrated in following table 1.
Comparative example 1
When forming the former material of filter material, so that reaching 100% mode (in other words, not form the mode of non-bonding part 2d), lamination ratio carried out heat lamination, in addition, in mode similarly to Example 1, make the former material of filter material and formed filter filtration material.Then, use the filter filtration material obtain, with mode calculating pressure loss climbing similarly to Example 1 and measured arresting efficiency.
Comparative example 2
Make flank 3a be formed at the outside (that is, non-bonding part 2d) of bonding part 2c, in addition, in mode similarly to Example 1, make the former material of filter material and formed filter filtration material.Then, use the filter filtration material obtain, with mode calculating pressure loss climbing similarly to Example 1 and measured arresting efficiency.
Table 1
Sum up
According to the comparison of embodiment 1 and comparative example 1, find out that the pressure loss of embodiment 1 is lower.Its reason is, by making lamination ratio be less than 100% as embodiment 1, thereby on filter filtration material 1, forms bonding part 2c and non-bonding part 2d.So at non-bonding part 2d, a part for the gas permeability sheet that the Kong Buhui of Porous sheet has been melted due to heat lamination is inaccessible.Therefore,, at non-bonding part 2d, can maintain the gas permeability of Porous sheet.Thus, compare with the situation that makes bonding part 2c be formed at the whole region of the former material 2 of filter material as comparative example 1, and can reduce the pressure loss.
In addition, according to the comparison of embodiment 1 and comparative example 2, even if find out that embodiment 1 also can maintain arresting efficiency after flexure operation.Its reason is, when the power on draw direction puts on filter filtration material 1 (when applying flexure operation), power can be to put on one side side interval maintaining part 3 and another side side interval maintaining part 3 across the overlapping position of flat part 1b (maintaining part overlapping portion, interval) B1 by forming the porous layer 2a of the former material 2 of filter material and mode that substrate layer 2b peels off.Yet when forming flank 3a in the inner side of bonding part 2c as embodiment 1, one side side interval maintaining part 3 and another side side interval maintaining part 3 are to form across the overlapping mode of bonding part 2c.That is to say, owing to forming bonding part 2c at maintaining part overlapping portion, interval B1, therefore, even when the power on draw direction puts on filter filtration material 1, be also difficult to porous layer 2a and substrate layer 2b to peel off.Thus, can suppress to be stripped from because of porous layer 2a and substrate layer 2b the situation that the arresting efficiency of filter filtration material is reduced.
Claims (6)
1. a filter filtration material, it forms folded shape by the former material of filter material in many places bending and forms, the former material of this filter material comprises for trapping the porous layer that is filtered the contained particle of gas and the substrate layer that is bonded at least one face of this porous layer, it is characterized in that
This filter filtration material comprises:
Bend, it is by forming the former material of above-mentioned filter material along a direction is crooked;
Flat part, it is by the region except bend in the former material of filter material is formed to tabular forming; And
A plurality of intervals maintaining part, it is formed between each flat part in the one side side of the former material of filter material and between each flat part in another side side and keeps the adjacent mutual interval of bend,
Above-mentioned flat part has porous layer and substrate layer is bonding and the bonding part that forms and porous layer and substrate layer do not have bonding non-bonding part,
Each interval maintaining part that is formed at the one side side of the former material of above-mentioned filter material forms in the overlapping mode of the bonding part in each flat part with each interval maintaining part that is formed at the another side side of the former material of filter material, and so that the mutual bonding mode of bonding part is formed.
2. filter filtration material according to claim 1, is characterized in that,
Above-mentioned bonding part forms continuously or by phased manner along the direction of intersecting with above-mentioned bend, and above-mentioned interval maintaining part is formed on the inner side of the bonding part in each flat part, and along the direction of intersecting with bend continuously or formation by phased manner.
3. filter filtration material according to claim 1, is characterized in that,
Contact area between above-mentioned bonding part and above-mentioned interval maintaining part be bonding part area 10%～100%.
4. filter filtration material according to claim 2, is characterized in that,
Contact area between above-mentioned bonding part and above-mentioned interval maintaining part be bonding part area 10%～100%.
5. according to the filter filtration material described in any one in claim 1 to 4, it is characterized in that,
By above-mentioned porous layer and above-mentioned substrate layer heat lamination are formed to bonding part.
6. a manufacturing installation for filter filtration material, it is to form in claim 1 to 5 manufacturing installation of the filter filtration material of filter filtration material described in any one, it is characterized in that,
This manufacturing installation is configured to, configured bonding agent in the overlapping mode of above-mentioned bonding part in the region that becomes above-mentioned flat part in being formed at the former material of above-mentioned filter material on two faces of the former material of filter material after, make the former material of filter material bend to folded shape and form a plurality of bends and a plurality of flat part, and, between each flat part and each flat part in another side side in the one side side of the former material of filter material, the bonding agent of the one side side of the former material of filter material is engaged each other, the bonding agent of the another side side of the former material of filter material is engaged each other, thereby in the one side side of the former material of filter material and another side side to form interval maintaining part across the overlapping mode of bonding part.
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| JP2013058044A JP6106479B2 (en) | 2013-03-21 | 2013-03-21 | FILTER FILTER AND METHOD FOR PRODUCING FILTER FILTER |
| JP2013-058044 | 2013-03-21 |
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| CN203790711U true CN203790711U (en) | 2014-08-27 |
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| CN201420125892.3U Withdrawn - After Issue CN203790711U (en) | 2013-03-21 | 2014-03-19 | Filter material of filter and device for preparing filter material of filter |
| CN201410103348.3A Active CN104056491B (en) | 2013-03-21 | 2014-03-19 | The manufacture method of filter filtration material and filter filtration material |
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| JP (1) | JP6106479B2 (en) |
| CN (2) | CN203790711U (en) |
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| CN104056491A (en) * | 2013-03-21 | 2014-09-24 | 日东电工株式会社 | Filter Filtering Material And Method For Manufacturing Filter Filtering Material |
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| US11338233B2 (en) * | 2017-09-22 | 2022-05-24 | Nitto Denko Corporation | Air filter medium, filter pleat pack, and air filter unit |
| US10918976B2 (en) * | 2018-10-24 | 2021-02-16 | Pall Corporation | Support and drainage material, filter, and method of use |
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| BE535005A (en) * | 1954-02-01 | 1900-01-01 | ||
| JPH03293008A (en) * | 1990-04-06 | 1991-12-24 | Toyobo Co Ltd | Electret filter and its production |
| JPH06178905A (en) * | 1992-12-11 | 1994-06-28 | Miki Rubber Kk | Filter medium reinforcing structure of filter |
| JPH11503963A (en) * | 1995-04-21 | 1999-04-06 | ドナルドソン カンパニー，インコーポレイティド | Pleated filter and method of manufacturing the same |
| TW438679B (en) * | 1996-08-09 | 2001-06-07 | Daikin Ind Ltd | Filter medium and air filter unit using the same |
| JP2000107526A (en) * | 1998-10-01 | 2000-04-18 | Daikin Ind Ltd | Air filter pack and air filter |
| JP3584855B2 (en) * | 1999-10-07 | 2004-11-04 | ダイキン工業株式会社 | Air filter media |
| JP4133180B2 (en) * | 2002-01-09 | 2008-08-13 | 日本エアー・フィルター株式会社 | Filter element manufacturing equipment |
| JP4497453B2 (en) * | 2004-03-16 | 2010-07-07 | 日東電工株式会社 | Vent filter for toner container, vent member, developing device using the same, toner box, and vent filter assembly for toner container |
| JP4944540B2 (en) * | 2006-08-17 | 2012-06-06 | 日本バイリーン株式会社 | FILTER ELEMENT, MANUFACTURING METHOD THEREOF, AND USE METHOD |
| CN102448577A (en) * | 2009-05-29 | 2012-05-09 | 日本无机株式会社 | Filter element and double-pleated air filter using same |
| US9061234B2 (en) * | 2011-01-14 | 2015-06-23 | Pall Corporation | Gas filter assemblies and methods for filtering gases |
| WO2013031229A1 (en) * | 2011-08-31 | 2013-03-07 | ダイキン工業株式会社 | Filter medium for air filter, air filter unit, and method for producing filter medium for air filter |
| CA2892625C (en) * | 2012-12-14 | 2019-10-22 | 3M Innovative Properties Company | Non-woven electret fibrous webs and methods of making same |
| JP6106479B2 (en) * | 2013-03-21 | 2017-03-29 | 日東電工株式会社 | FILTER FILTER AND METHOD FOR PRODUCING FILTER FILTER |
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| CN104056491A (en) * | 2013-03-21 | 2014-09-24 | 日东电工株式会社 | Filter Filtering Material And Method For Manufacturing Filter Filtering Material |
| CN104056491B (en) * | 2013-03-21 | 2017-09-01 | 日东电工株式会社 | The manufacture method of filter filtration material and filter filtration material |
Also Published As
| Publication number | Publication date |
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| CN104056491A (en) | 2014-09-24 |
| JP6106479B2 (en) | 2017-03-29 |
| TW201440871A (en) | 2014-11-01 |
| WO2014148172A1 (en) | 2014-09-25 |
| JP2014180641A (en) | 2014-09-29 |
| TWI633920B (en) | 2018-09-01 |
| CN104056491B (en) | 2017-09-01 |
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