CN203790712U - Filter medium for filter - Google Patents
Filter medium for filter Download PDFInfo
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- CN203790712U CN203790712U CN201420138361.8U CN201420138361U CN203790712U CN 203790712 U CN203790712 U CN 203790712U CN 201420138361 U CN201420138361 U CN 201420138361U CN 203790712 U CN203790712 U CN 203790712U
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Abstract
The utility model provides a filter medium for a filter. The shape of a filter medium raw material can be maintained, and meanwhile, electrification can be suppressed. The filter medium for the filter comprises the filter medium raw material, a plurality of bending parts, a plurality of flat plate parts and a plurality of interval holding parts, wherein the filter medium raw material forms particles capable of capturing filtered gas; the bending parts are formed by bending the filter medium raw material alternately towards different directions along one direction; the flat plate parts are formed by platy areas, except the bending parts, in the filter medium raw material; each of the interval holding parts is formed in a direction intersected with one direction of the filter medium raw material, is formed between the corresponding adjacent flat plate parts on at least one lateral surface of the filter medium raw material, and is used for holding an interval between the corresponding adjacent flat plate parts; the interval holding parts are formed by linearly coating an adhesive, and are arranged on the outer surfaces of the bending parts in a way of extending to 0.5 to 1.7mm along the one direction.
Description
Technical field
The utility model relates to a kind of filter filtration material with folded shape portion.
Background technology
In the past, as the filter filtration material of use in the toilet etc. of factory that manufactures semiconductor, liquid crystal, be known to such former material of filter material by be filtered the contained particle of gas for trapping that patent documentation 1 records and be processed into the filter filtration material that folded shape forms.
This filter filtration material comprises: a plurality of bends, and the plurality of bend is by forming the former material bending of filter material; A plurality of flat parts, the tabular region except bend of the plurality of flat part in the former material of filter material forms; And a plurality of intervals maintaining part, the interval between the flat part that the plurality of interval maintaining part is used for keeping adjacent.This interval maintaining part is to form by having predetermined distance and be wire adhesive-applying etc. along the direction of the direction quadrature of the folding line with bend in two faces at the former material of filter material or one side side.
In the situation that manufacture such filter filtration material, for example, the former material of filter material that makes strip along width alternately to different direction, crooked and form bend to side direction of the former material of filter material and another side side direction.Afterwards, this bend is stretched as smooth, and in many places, is bonding dose of the PURs such as wire coating polyamide along the direction of the direction quadrature of the folding line with this bend.
Afterwards, by again form bend and flat part on the former material of filter material, make the former material of filter material become folded shape, thereby form, between the flat part of the former material of filter material, utilize interval maintaining part and keep spaced filter filtration material.
This filter filtration material is carried in the conveying roller of manufacturing installation, transport platform with the state of folded shape, is housed in afterwards framework medium and be manufactured into air cleaner.
Be used in the filter material Yuan Cai manufacturing process of above-mentioned filter filtration material and batched or be bent or be stretched, therefore, easily because friction is charged, thereby sometimes produce static.This static can cause the former material of filter material to produce pin hole, thereby likely produces and leak in use, therefore, has studied the method for the static of the former material of various inhibition filter material.
For example, in patent documentation 2, recorded: use to the blowing-type static removal device that forms the former material of filter material before folded shape and blow ion the former material of this filter material is applied to charged Transformatin, the former material of filter material is crooked and manufacture air filter filter medium afterwards.
Yet, after forming filter filtration material, while being contained in packaging material, framework at delivery filter filter material or by filter filtration material, sometimes also can be charged because of friction, contact etc.Particularly, there are the following problems: above-mentioned interval maintaining part with the outstanding mode in the surface from the former material of filter material be present in bend outer surface side, become on the face of peak side of bend, therefore, above-mentioned interval maintaining part easily contacts at other members such as hand, packaging material or framework of this part place and manufacturing installation, manufacturing operation personnel etc., if this contact area is larger, be very easy to charged.On the other hand, above-mentioned interval maintaining part is also brought into play the effect of the shape of the folded shape that maintains the former material of filter material, if this interval maintaining part is too small at the width at bend place, can not maintain the shape of the folded shape of the former material of filter material.
Patent documentation 1: TOHKEMY 2000-140544 communique
Patent documentation 2: TOHKEMY 2002-273126 communique
Utility model content
Therefore, problem of the present utility model is, provides a kind of and can in the shape that maintains the former material of filter material, suppress charged filter filtration material.
Filter filtration material of the present utility model comprises: the former material of filter material, and it is configured to trap and is filtered the contained particle of gas; A plurality of bends, the plurality of bend is by the former material of above-mentioned filter material is alternately formed to different directions is crooked along a direction; A plurality of flat parts, the tabular region except above-mentioned bend of the plurality of flat part in the former material of above-mentioned filter material forms; And interval maintaining part, it is formed with a plurality of along the direction of intersecting with an above-mentioned direction of the former material of above-mentioned filter material, and be formed between the adjacent flat part of at least one side in side of the former material of above-mentioned filter material, for keeping the interval between flat part, above-mentioned interval maintaining part forms by being wire adhesive-applying, and take mode that the length of extending along above-mentioned direction is 0.5mm～1.7mm and be disposed at the outer surface side of above-mentioned bend.
In the utility model, the former material of above-mentioned filter material also can have the porous layer that contains polytetrafluoroethylmaterial material.
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 means the general profile chart of another example of the former material of filter material.
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; 3, interval maintaining part; 3a, flank; A1, A1, crooked presumptive area; A2, 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.
The filter filtration material 1 of present embodiment comprises: the former material 2 of filter material, and it is configured to trap and is filtered the contained particle of gas; A plurality of bend 1a, the plurality of bend 1a is by the former material 2 of above-mentioned filter material is alternately formed to different directions is crooked along a direction; A plurality of flat part 1b, the tabular region except above-mentioned bend 1a of the plurality of flat part 1b in the former material 2 of above-mentioned filter material forms; And interval maintaining part 3, it is formed with a plurality of and is formed between the adjacent flat part 1b at least one side side of the former material 2 of above-mentioned filter material along the direction of intersecting with an above-mentioned direction of the former material 2 of above-mentioned filter material, for keeping the interval between flat part 1b, above-mentioned interval maintaining part 3 is disposed at the outer surface side of above-mentioned bend 1a by being wire adhesive-applying and forming and take mode that the length of extending along an above-mentioned direction is 0.5mm～1.7mm.
The former material 2 of filter material of present embodiment has porous layer 2a and above-mentioned substrate layer 2b.
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.
That is, 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 above-mentioned 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.
By the bonding agent of PUR, pressure sensitive by Porous sheet as described above and the crimping of gas permeability sheet or by the heating of gas permeability sheet and after making it softening by this gas permeability sheet and Porous sheet crimping (heat lamination) etc., thereby the former material 2 of formation filter material.
As shown in Figure 2, the former material 2 of the filter material of present embodiment is to form by substrate layer 2b being laminated in to two faces of porous layer 2a.
Make the former material 2 of above-mentioned filter material alternately to different direction bendings, form folded shape along a direction D1.
The lamellar body that the former material 2 of filter material of present embodiment is strip as shown in Figure 2, using the width of the former material 2 of this filter material as an above-mentioned direction D1, by the former material 2 of this filter material is alternately crooked to become the mode on mountain peak towards the one side side F1 direction of the former material 2 of filter material and another side side F2 direction in many places, thereby form a plurality of bend 1a.
The bend 1a of present embodiment is uniformly-spaced to form, and therefore, above-mentioned a plurality of flat part 1b form same size.
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.
The interval maintaining part 3 of present embodiment forms by be respectively rib (Japanese: ビ ー De) 3a of portion, the 3a that wire adhesive-applying forms on a pair of filter material opposite face 1c, 1c.
Specifically, on two faces of the former material 2 of filter material, with the such wire adhesive-applying in the side, peak across each bend 1a, form flank 3a.Then, the position between a pair of filter material opposite face 1c, 1c in flank 3a, 3a is linked each other, and the part that does not have this flank 3a, 3a in filter material opposite face 1c, 1c relatively configures in the mode at the corresponding interval of the thickness of the flank 3a, the 3a that have and link up.
In the present embodiment, as shown in Figure 2, be formed on the one side side F1 of the former material 2 of filter material and each flank of another side side F2 (being also denoted as below a side rib portion and another side side rib portion) 3a, 3a and along the empty standard width of a room in an old-style house of the length direction D2 of the former material 2 of filter material, every ground, be formed with respectively a plurality ofly, 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.
For each flank 3a, as shown in Fig. 3 (a), flank 3a is formed at when having formed bend 1a to be become on the face of peak side, that is to say that a 3a of side rib portion and the another side side rib 3a of portion are alternately formed on the face that becomes peak side of bend 1.
And, the adjacent flank 3a of the same face side that is formed at the former material 2 of filter material is as the flank 3a between a pair of filter material opposite face 1c, 1c and connected to each other, and the part that does not have this flank 3a, 3a in filter material opposite face 1c, 1c relatively configures in the mode at the corresponding interval of the thickness of the flank 3a, the 3a that have and link up.
The length of extending along direction D1 of above-mentioned flank 3a, be that the width W of flank 3a of the wire of present embodiment is preferably 0.5mm～1.7mm, 0.8mm～1.55mm more preferably.
In the situation that the width W of flank 3a is in above-mentioned scope, flank 3a is present in the outer surface side of the bend 1a of filter filtration material 1 with thinner width, therefore, even the in the situation that of contacting with members such as manufacturing equipment, operating personnel, packaging material at this place, the area of contact also diminishes, thereby can suppress charged.Meanwhile, in the bend 1a of filter filtration material 1, by kept the shape of bend 1a by flank 3a, can maintain reliably the shape of the folded shape of the former material 2 of filter material.
As the thickness of above-mentioned flank 3a, can suitably set according to the interval between filter material opposite face 1c, the 1c of expectation.
Bonding agent as forming flank 3a, is not particularly limited, and for example, can use the PUR consisting of thermoplastic resin.Thermoplastic resin as forming this PUR, can list polyamide or vinyl-vinyl acetate copolymer (EVA) resin etc.Temperature when this hot-melt is spread on to the former material 2 of filter material, according to the composition of PUR and difference, but in the situation that use the PUR for example being formed by polyamide or vinyl-vinyl acetate copolymer (EVA) resin, be preferably 100 ℃～250 ℃, more preferably 140 ℃～230 ℃.
Next, the manufacturing installation of filter filtration material as described above is described.
The manufacturing installation of filter filtration material comprises: coating member, and it has predetermined distance in side and is being wire adhesive-applying and forming a plurality of intervals maintaining part for trapping at least one side of the former material of filter material that is filtered the contained particle of gas; And bending part, it makes the former material of above-mentioned filter material alternately to different direction bendings, form a plurality of bends along a direction of intersecting from above-mentioned interval maintaining part, thereby make the former material of above-mentioned filter material form folded shape, above-mentioned coating member is so that the mode that the length of along an above-mentioned direction extending of above-mentioned interval maintaining part in the outer surface side of above-mentioned bend is 0.5mm～1.7mm applies above-mentioned bonding agent.
In addition, the manufacturing installation of above-mentioned filter filtration material comprises: coating member, it is for implementing working procedure of coating, in this working procedure of coating, for trapping at least one side of the former material 2 of filter material that is filtered the contained particle of gas, there is predetermined distance in side and be wire adhesive-applying and forming a plurality of intervals maintaining part 3; Bending part, it is for implementing bending operation, in this bending operation, along the direction of intersecting from above-mentioned interval maintaining part 3, make the former material 2 of above-mentioned filter material alternately to different direction bendings, form a plurality of bend 1a, thereby make the former material 2 of above-mentioned filter material form folded shape, above-mentioned working procedure of coating is for implementing the operation of following methods: so that the mode that the length of along an above-mentioned direction extending of above-mentioned interval maintaining part 3 in the outer surface side of above-mentioned bend 1a is 0.5mm～1.7mm applies above-mentioned bonding agent.
The former material 2 of filter material as described above of supplying with to above-mentioned manufacturing installation 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 the manufacturing installation of above-mentioned filter filtration material, can be also that the mode of implementing the bending operation based on above-mentioned bending part with the front and back of the working procedure of coating based on above-mentioned coating member configures above-mentioned bending part and coating member.
In this case, both can be provided with bending part at Liang Chu, or, can be to be also provided with such supply part: the bending part by the former material supplying secondary of filter material to a place.
Or, can be also to configure above-mentioned bending part and coating member only to implement the mode of the bending operation based on above-mentioned bending part after the working procedure of coating based on above-mentioned coating member.
Also, the in the situation that of implementing above-mentioned bending operation before working procedure of coating, above-mentioned bending operation is in order to form the bending memory of folded shape on the former material 2 of filter material before forming interval maintaining part 3.
Specifically, in above-mentioned bending operation, many places (that is, each crooked presumptive area A1) on the width D1 along intersecting with length direction D2 alternately crooked and form folded shape to become the mode at peak to the one side side F1 of the former material 2 of filter material and another side side F2 direction by the former material 2 of above-mentioned filter material with meeting at right angles.Thus, on 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.
Next, utilize above-mentioned coating member to implement working procedure of coating, in this working procedure of coating, at least one side side of the former material of above-mentioned filter material, there is predetermined distance and be wire adhesive-applying and form a plurality of intervals maintaining part 3.
In the manufacture method of implementing at the manufacturing installation by filter filtration material as described above, by adhesive-applying on two face side F1, F2 of the former material 2 of filter material, form flank 3a, thereby form interval maintaining part 3.
Specifically, the former material 2 of filter material crooked and that formed the bending memory of folded shape is as described above stretched as to the flat condition forming before bending memory, and on two face side F1, F2 of the former material 2 of this filter material adhesive-applying and form a 3a of side rib portion and the another side side rib 3a of portion.Each flank has predetermined distance along the length direction D2 of the former material 2 of filter material and forms wire.
More particularly, flank 3a with the former material 2 of filter material in the bend presumptive area A1 mode of intersecting form.In the present embodiment, forming the flank 3a of wire and bend presumptive area A1 intersects in the substantial middle portion of flank 3a.In addition, flank 3a is formed on the face that becomes peak side while having formed bend 1a, the outside of the bend 1a of filter filtration material 1.That is to say, in adjacent bend presumptive area A1, A1, a bend presumptive area A1 intersects with a 3a of side rib portion, and another bend presumptive area A1 intersects with the another side side rib 3a of portion.
In addition, as shown in Figure 2,3a of side rib portion and the another side side rib 3a of portion are flat part presumptive area A2 across the former material 2(of filter material with end each other specifically) overlapping mode forms.Specifically, form 3a of side rib portion of same linearity and the end of the another side side rib 3a of portion to form across the overlapping mode of flat part presumptive area A2.As overlapping position between a 3a of side rib portion and the another side side rib 3a of portion, be not particularly limited, but be preferably the substantial middle portion in flat part presumptive area A2.
In the working procedure of coating of the coating member based on said apparatus, so that becoming the mode of 0.5mm～1.7mm, the length of extending along an above-mentioned direction of above-mentioned interval maintaining part 3 in the outer surface side of above-mentioned bend 1a applies above-mentioned bonding agent.
More particularly, the width W of above-mentioned each flank 3a at least forms below 1.7mm in crooked presumptive area A1, is preferably formed as 0.5mm～1.7mm, is further preferably formed as 0.8mm～1.55mm.
In addition, if the width of flank 3a in crooked presumptive area A1 in above-mentioned scope, in other parts, the width of flank 3a is not particularly limited within the scope of this yet, but manufacturing in efficiency preferably, by the wire that is same widths by adhesive applicating, thus the flank of the wire of formation same widths.
The number on width D1 of each flank 3a is not particularly limited, but in the present embodiment, 3 flank 3a are respectively formed at two face sides of the former material 2 of filter material.
In the situation that by PUR as the bonding agent that forms above-mentioned flank 3a, as the temperature when the former material 2 of filter material by this adhesive applicating, according to the composition of PUR and difference is for example preferably 100 ℃～250 ℃, more preferably 140 ℃～230 ℃.
Then, implement the former material 2 of the filter material that is formed with flank 3a again crooked and form the bending operation of folded shape in each crooked presumptive area A1.
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 direction that alongst D2 in filter filtration material 1 and the former material 2 of filter material is extended is made as length L 1 direction of filter filtration material 1.In addition, the direction 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 direction of filter filtration material 1.In addition, the one side side F1 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 F2 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 above-mentioned such filter filtration material of manufacturing 1, in the one side side F1 of the former material 2 of filter material and this two sides side of another side side F2, form respectively interval maintaining part 3, one side side interval maintaining part 3 forms at flat part 1b and overlaps each other and link up, and another side side interval maintaining part 3 forms at flat part 1b and overlaps each other and link up.
In addition, by making the end of a 3a of side rib portion and the end of the another side side rib 3a of portion overlapping, thereby length L 1 direction along filter filtration material 1 forms each interval maintaining part 3 across the overlapping position of flat part 1b (below also referred to as maintaining part overlapping portion, interval) B1, between flat part 1b between each interval maintaining part in the width L2 of filter filtration material 1 direction, that do not form interval maintaining part 3, forms space.
Be filtered the space of the above-mentioned flat part 1b in this filter filtration material 1 of gas permeation.
The mode that also can become the shape of regulation in the profile with above-mentioned filter filtration material 1 (shape of seeing from height L3 direction) is used this filter filtration material 1 after forming this filter filtration material 1 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).
In order above-mentioned filter filtration material 1 to be formed to regulation shape or above-mentioned filter filtration material 1 to be contained in to above-mentioned framework, after sometimes stating on the implementation working procedure of coating and bending operation, on manufacturing installation, carry above-mentioned filter filtration material 1.In this case, because the flank 3a of above-mentioned interval maintaining part 3 is present in the outer surface side of the bend 1a of filter filtration material 1 highlightedly, therefore, sometimes because making filter filtration material 1 charged with contacting between platform, friction at this part place with carrying with roller, conveying.
Roller, the conveying for conveying of manufacturing installation are manufactured by metals such as stainless steel, aluminium mostly with platform, and therefore, filter filtration material 1 is because contacting and easily make filter filtration material 1 charged with platform with roller, conveying for conveying.
In addition, in the situation that the former material of filter material has the above-mentioned PTFE sheet as porous layer, because PTFE is easy charged material, therefore, filter filtration material 1 is more easily charged.
Or, in the situation that the flank that interval maintaining part is formed by the PUR of the thermoplastic resins such as polyamide or vinyl-vinyl acetate copolymer (EVA) resin forms, because above-mentioned thermoplastic resin is also easy charged material, therefore, filter filtration material 1 is more easily charged.
This filter filtration material 1 contacts easily charged with other members such as operating personnel's hand, operating personnel's clothes, packaging material, frameworks because of above-mentioned interval maintaining part 3.
In the filter filtration material 1 of present embodiment, as mentioned above, because the outer surface side at bend 1a is formed with flank 3a to reach the mode of the width of afore mentioned rules, therefore, even if above-mentioned roller for conveying, carry hand with platform or operating personnel, packaging material, frame material etc. to contact with filter filtration material 1, carried charge is also less, thereby can be suppressed at, produces the pin hole that static causes on filter filtration material 1.
Meanwhile, because the outer surface side of the bend 1a at filter filtration material 1 is formed with the flank 3a of the width of regulation, therefore, can keep reliably the shape of the folded shape of the former material 2 of filter material.
In addition, the material of the former material of above-mentioned filter material is not particularly limited, but in the situation that the former material of above-mentioned filter material has the porous layer that contains polytetrafluoroethylene (PTFE), because polytetrafluoroethylene (PTFE) is easy charged material, therefore, particularly, by being above-mentioned scope at bend 1a by the width adjustment of the outstanding interval maintaining part 3 of outside face side, can effectively suppress charged.
In addition, in the filter filtration material 1 of present 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 2 of filter material that makes to be formed monolithic body shape is crooked and form cone shape filter filtration material 1 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 the one side side that substrate layer 2b is laminated in to porous layer 2a forms.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, 3a of side rib portion and the another side side rib 3a of portion are formed with a plurality of along the empty standard width of a room in an old-style house of length direction of the former material 2 of filter material every ground, but be not limited thereto, 3a of side rib portion and the another side side rib 3a of portion also can form continuous wire along the length direction of the former material 2 of filter material.
And in the above-described embodiment, the former material 2 of filter material is substrate layer 2b to be laminated in to two three-layer structures that face forms of porous layer 2a, but the structure of the former material 2 of filter material is not limited thereto.
For example, as shown in Figure 4, can be also porous layer 2a to be laminated in to two faces of substrate layer 2b and the former material of filter material of five layers of structure that further laminated substrate layer 2b forms on the lateral surface of this porous layer 2a etc.
In addition, this filter filtration material of present embodiment as mentioned above, but it should be noted, this time disclosed embodiment is all illustrations in all respects, and is not restrictive content.Protection domain of the present utility model also be can't help above-mentioned explanation and is represented, but is represented by claims, and protection domain of the present utility model is included in the implication that is equal to claim and all changes in scope.
Filter filtration material of the present utility model comprises: the former material of filter material, and it is configured to trap and is filtered the contained particle of gas; A plurality of bends, the plurality of bend is by the former material of above-mentioned filter material is alternately formed to different directions is crooked along a direction; A plurality of flat parts, the tabular region except above-mentioned bend of the plurality of flat part in the former material of above-mentioned filter material forms; And interval maintaining part, it is formed with a plurality of along the direction of intersecting with an above-mentioned direction of the former material of above-mentioned filter material, and be formed between the adjacent flat part of at least one side in side of the former material of above-mentioned filter material, for keeping the interval between flat part, above-mentioned interval maintaining part forms by being wire adhesive-applying, and take mode that the length of extending along above-mentioned direction is 0.5mm～1.7mm and be disposed at the outer surface side of above-mentioned bend.
Adopt this structure, due to what be present in interval maintaining part in the outer surface side of bend of the former material of filter material, along the upwardly extending length in side, be 0.5mm～1.7mm, therefore, after forming filter filtration material, even in the situation that interval maintaining part contacts with other members etc., also can suppress the former material of filter material charged in, in the outer surface side of the bend of the former material of filter material, can keep curved shape and maintain the shape of filter filtration material by interval maintaining part.
As mentioned above, adopt the utility model, can in the shape that maintains the former material of filter material, suppress charged.
Embodiment
Below, embodiment of the present utility model is described.
1. the former material of filter material
As the former material of filter material, prepared the former material of filter material as following.
(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 (the You Nijia company manufacture 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 by Porous sheet and gas permeability sheet heat lamination carry out bondingly at 200 ℃, and be made into the former material 2 of filter material.
2. form flank
After former material 2 has carried out the such kilting processing of aftermentioned to the filter material obtaining, the former material 2 of filter material is stretched as smooth and forms flank 3a as shown in Figure 2.
Specifically, flank 3a is formed with a plurality of and each flank 3a along the length direction of the former material 2 of filter material and forms in the mode of intersecting with crooked presumptive area A1.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).
As shown in table 1, the application width that regulated flank 3a so that the application width of flank 3a becomes that the mode of the width in 6 stages between 0.3mm～1.73mm changes the emitted dose of PUR.
3. pleat processing
By the strip of length 1330cm and width 68cm, to form the former material 2 of filter material before above-mentioned flank alternately crooked and form a plurality of (190 place) bend to side direction of the former material of filter material and another side side direction along width with 3.5cm interval in the longitudinal direction.
After forming above-mentioned flank, when above-mentioned PUR is softening, specifically, the former material 2 of filter material is again crooked and form bend as described above, thus make the former material of filter material form folded shape.
The former material of above-mentioned filter material be take 8ppi(and in 1 inch, is had 8 mountain peaks, at 16 places, has bend) form folded shape as target.
4. measure carried charge
Use in mode as described above, changed the width of flank embodiment 1～embodiment 4, comparative example 1 and comparative example 2 filter filtration material and with method as following, measured carried charge.
For each filter filtration material, under the state as shown in Fig. 3 (a) and Fig. 3 (b), in the direction of the length direction L1 along filter filtration material, utilize a position of the flank of finger contact bend, and the length direction along flank moves 5cm and the flank that rubs under the state keeping in touch.
Afterwards, the probe that makes carried charge determinator (device name: digital electrostatic potential analyzer MODEL KSD-2000, springtime, motor company manufactured) near above-mentioned finger contact flank and measured carried charge.
The results are shown in table 1.
Table 1
As shown in table 1, known, the carried charge in the comparative example 2 that the width of flank is 1.73mm is more than the carried charge in each embodiment.
In addition, in the comparative example 1 that the width of flank is 0.3mm, the shape of filter filtration material distortion (becoming non-folded shape), thus could not enough measure carried charge.
Therefore,, by adjusting the width of flank, can when maintaining shape, suppress the carried charge of filter filtration material.
Claims (1)
1. a filter filtration material, is characterized in that,
This filter filtration material comprises:
The former material of filter material, it is configured to trap and is filtered the contained particle of gas;
A plurality of bends, the plurality of bend is by the former material of above-mentioned filter material is alternately formed to different directions is crooked along a direction;
A plurality of flat parts, the tabular region except above-mentioned bend of the plurality of flat part in the former material of above-mentioned filter material forms; And
Interval maintaining part, it is formed with a plurality of along the direction of intersecting with an above-mentioned direction of the former material of above-mentioned filter material, and is formed between the adjacent flat part at least one side side of the former material of above-mentioned filter material, for keeping the interval between flat part,
Above-mentioned interval maintaining part forms by being wire adhesive-applying, and take mode that the length of extending along above-mentioned direction is 0.5mm～1.7mm and be disposed at the outer surface side of above-mentioned bend.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013075165A JP2014198312A (en) | 2013-03-29 | 2013-03-29 | Filter medium and method of manufacturing filter medium |
| JP2013-075165 | 2013-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203790712U true CN203790712U (en) | 2014-08-27 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410114312.5A Pending CN104069685A (en) | 2013-03-29 | 2014-03-25 | Filter medium for filter |
| CN201420138361.8U Expired - Fee Related CN203790712U (en) | 2013-03-29 | 2014-03-25 | Filter medium for filter |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410114312.5A Pending CN104069685A (en) | 2013-03-29 | 2014-03-25 | Filter medium for filter |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2014198312A (en) |
| CN (2) | CN104069685A (en) |
| TW (1) | TWI644715B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3203760B2 (en) * | 1992-05-27 | 2001-08-27 | 東洋紡績株式会社 | Molded filter medium and method for producing 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 |
| JP2000140544A (en) * | 1998-11-12 | 2000-05-23 | Sekisui Chem Co Ltd | Spacer for air filter and air filter using the same |
| JP4139121B2 (en) * | 2002-03-28 | 2008-08-27 | 日本無機株式会社 | Manufacturing method of filter medium for zigzag air filter |
| JP2007054718A (en) * | 2005-08-23 | 2007-03-08 | Nippon Muki Co Ltd | Manufacturing method of pack for air filter, and air filter |
| MX2008008461A (en) * | 2005-12-29 | 2009-03-09 | Environmental Dynamics Group I | Distributed air cleaner system for enclosed electronic device. |
| JP5819724B2 (en) * | 2009-05-29 | 2015-11-24 | 日本無機株式会社 | Filter element and double pleat type air filter using the same |
| JP5012990B2 (en) * | 2010-06-17 | 2012-08-29 | ダイキン工業株式会社 | Filter medium provided with porous membrane, manufacturing method thereof, filter pack, and filter unit |
| CN103764251B (en) * | 2011-08-31 | 2015-07-22 | 大金工业株式会社 | Filter medium for air filter, air filter unit, and method for producing filter medium for air filter |
-
2013
- 2013-03-29 JP JP2013075165A patent/JP2014198312A/en active Pending
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2014
- 2014-02-18 TW TW103105259A patent/TWI644715B/en active
- 2014-03-25 CN CN201410114312.5A patent/CN104069685A/en active Pending
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2014198312A (en) | 2014-10-23 |
| TW201440872A (en) | 2014-11-01 |
| TWI644715B (en) | 2018-12-21 |
| CN104069685A (en) | 2014-10-01 |
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