CN103547351A - Method for forming pleats in filtering member and device for forming pleats - Google Patents
Method for forming pleats in filtering member and device for forming pleats Download PDFInfo
- Publication number
- CN103547351A CN103547351A CN201280024530.9A CN201280024530A CN103547351A CN 103547351 A CN103547351 A CN 103547351A CN 201280024530 A CN201280024530 A CN 201280024530A CN 103547351 A CN103547351 A CN 103547351A
- Authority
- CN
- China
- Prior art keywords
- filter filtration
- filtration material
- rivel
- blade
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
- B31D5/0082—Making filter elements, e.g. pleated
-
- 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
- B01D39/1692—Other shaped material, e.g. perforated or porous sheets
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06J—PLEATING, KILTING OR GOFFERING TEXTILE FABRICS OR WEARING APPAREL
- D06J1/00—Pleating, kilting or goffering textile fabrics or wearing apparel
- D06J1/02—Pleating, kilting or goffering textile fabrics or wearing apparel continuously and transversely to the direction of feed
- D06J1/06—Pleating, kilting or goffering textile fabrics or wearing apparel continuously and transversely to the direction of feed by reciprocating blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
- B01D2239/0654—Support layers
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
- Treatment Of Fiber Materials (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
In a method for forming pleats in a filtering member of the present invention, when pleats are formed in a filtering member (10) by bringing a pair of blades (5) into abutment with the filtering member (10) from both sides in the width direction, ionised air is blown onto the edge surface of the filtering member (10) and towards the pair of blades (5), by a static electricity removal device (30), from a side of the filtering member (10). Preferably the filtering member (10) includes a polytetrafluoroethylene porous film and a permeable supporting member.
Description
Technical field
The present invention relates to rivel processing method and the rivel processing unit (plant) of filter filtration material.
Background technology
In toilet or semiconductor-fabricating device etc., with possessing for making air see through to trap to swim the air filter unit of atomic filter filtration material.As such filter filtration material, use and to there is HEPA(High Efficiency Particulate Air: high efficiency particle air filter) grade, ULPA(Ultra Low Penetration Air: the super high efficient filter) filter filtration material of the high arresting efficiency of grade etc.
Filter filtration material is conventionally by carrying out the rivel processing drape that turns back.For example, in patent documentation 1, disclose the rivel processing unit (plant) 500 that possesses pleating machine 520 shown in Fig. 3.Pleating machine 520 both sides from thickness direction on filter filtration material 510 push a blade 521, and filter filtration material 510 is carried out to rivel processing.
As filter filtration material, preferably use the filter material that comprises polytetrafluoroethylene (PTFE) multiple aperture plasma membrane.But, the easy static electrification of PTFE multiple aperture plasma membrane, and if static discharge on PTFE multiple aperture plasma membrane, form pin hole, leak in use.In order to prevent this situation, in patent documentation 1 in disclosed rivel processing unit (plant) 500, between pleating machine 520 and feeding roller and the downstream of pleating machine 520 configuration static eliminator 530, the air after the surface transport of filter filtration material 510 is ionized.
Prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2002-345320 communique
Summary of the invention
But, even if configure as shown in Figure 3 static eliminator 530, after rivel processing, on filter filtration material 510, also tend to confirm the pin hole of discharge generation.
The present invention makes in light of this situation, and its object is, rivel processing method and the rivel processing unit (plant) that can prevent from forming because of electric discharge the filter filtration material of pin hole are provided.
For solving the technical scheme of problem
In order to solve described problem, inventors of the present invention have carried out research with keen determination, consequently, the main cause that adds the pin hole that forming man-hour discharges causes as rivel on filter filtration material, specific following reason: even if filter filtration material is after being removed static, before supplying with to pleating machine, also may contact static electrification because of the roller used with conveyance or workbench etc.; And also static electrification of the blade of pleating machine.The blade of pleating machine also the reason of static electrification be because, although blade conventionally by metal, formed, owing in order not damage filter filtration material, coating being carried out to fluororesin etc. in its surface.The present invention forms from such a viewpoint.
; the invention provides a kind of rivel processing method of filter filtration material; both sides to filter filtration material from thickness direction push a blade and described filter filtration material is carried out to rivel add man-hour, utilize static eliminator towards end face and a described blade of described filter filtration material, to carry the air being ionized from the side of described filter filtration material.
In addition, the invention provides a kind of rivel processing unit (plant), it possesses: reciprocating pleating machine, and the both sides to filter filtration material from thickness direction push a blade and described filter filtration material are carried out to rivel processing; And static eliminator, with the end face towards described filter filtration material and a described blade, carry the mode of the air after being ionized to be disposed at the side of described pleating machine.
Invention effect
According to described structure, can prevent from filter filtration material, forming pin hole because of electric discharge.
Accompanying drawing explanation
Fig. 1 is the structure chart of the rivel processing unit (plant) of an embodiment of the present invention;
Fig. 2 means near the profile of the structure that the pleating machine of the rivel processing unit (plant) shown in Fig. 1 is;
Fig. 3 is the structure chart of existing rivel processing unit (plant).
The specific embodiment
Below, with reference to accompanying drawing, embodiments of the present invention are described.In addition, the following description is an example of the present invention, and the present invention is not subject to their restriction.
Fig. 1 represents the rivel processing unit (plant) 100 of an embodiment of the present invention.This rivel processing unit (plant) 100 is for manufacturing continuously the rivel goods 11 of prescribed level from belt filter filter material 10.
Particularly, filter filtration material 10 is supplied with to pleating machine 50 from the feeding roller 1 forming by this filter filtration material 10 of reeling.Suitable position between feeding roller 1 and pleating machine 50 disposes carrying roller 2, and disposes for apply the floating roller 21 of tension force to filter filtration material 10 at specific 2 of carrying rollers.
In the present embodiment, above the carrying roller 2 in downstream, be provided with for form the jointing line cutting machine 3 of the seam corresponding with the size of rivel goods 11 on filter filtration material 10.
Pleating machine 50 is for making a blade 5 at the reciprocating shuttle machine of thickness direction (being above-below direction in the present embodiment) of filter filtration material 10.And pleating machine 50, on the filter filtration material 10 being supplied to, pushes a blade 5 from thickness direction both sides and filter filtration material 10 is carried out to rivel processing.
Filter filtration material 10 after being processed by rivel, by clamp up and down after heater 4 heating that the mode of this filter filtration material 10 configures, arranges shapes by back compression part 6.Finally, filter filtration material 10 is cut off along the seam being formed by jointing line cutting machine 3 by horizontal cutting machine 7.
As filter filtration material 10, at filter material, see through under the condition that wind speed is 5.3cm/sec, particle footpath is that the arresting efficiency of particle more than 0.1 μ m is more than 50% (to be preferably more than 90%), and the pressure loss is that 20Pa above (more than being preferably 50Pa) and the filter material below 500Pa are suitable for air filter unit.For example, filter filtration material 10 is the duplexer of PTFE multiple aperture plasma membrane and aeration supporting material.
PTFE multiple aperture plasma membrane is manufacture as described below for example.First, will in PTFE micropowder, add the mixture of aqueous lubricant by least one method in extrusion molding and rolling, to be configured as the sheet of extending along prescribed direction, thereby obtained sheet-like formed body.Then, by heating or extracting method, from sheet-like formed body, remove aqueous lubricant, and make sheet-like formed soma dry.Afterwards, the sheet-like formed body that has made to remove liquid lubricant extends to length direction and width.
In addition, also can implement anti-oil processing to PTFE multiple aperture plasma membrane.This anti-oil processing can be by being for example coated on PTFE multiple aperture plasma membrane by the oil-proofing agent that contains the material that surface tension is little and being dried to carry out.
Aeration supporting material plays the effect of the intensity of guaranteeing filter filtration material 10.Although aeration supporting material material, structure, form are not particularly limited, aeration supporting material can be used aeration than the material of PTFE multiple aperture plasma membrane excellence, nonwoven for example, net (mesh-shape net), other porous prepared material.But, from the aspect of intensity, catching, flexibility, workability, preferred nonwoven.In addition, material as aeration supporting material, for example can use: polyolefin (polyethylene (PE), polypropylene (PP) etc.), polyamide, polyester (PETG (PET) etc.), aromatic polyamide or their composite etc.
The method that PTFE multiple aperture plasma membrane and aeration supporting material are engaged is not particularly limited, and can use the stacked body of bonding agent, heat lamination body, adds thermally welded, ultrasonic wave coating, the method such as bonding of bonding agent.
In addition, in the rivel processing unit (plant) 100 of present embodiment, adopt for preventing and add and on filter filtration material 10, form the structure of the pin hole producing because of electric discharge man-hour when carrying out rivel.Particularly, as shown in Figure 2, in the side of pleating machine 50, dispose static eliminator 30.In the present embodiment, in the both sides of pleating machine 50, dispose static eliminator 30, but also can be according to the width of filter filtration material 10, only the side at pleating machine 50 configures static eliminator 30.
Static eliminator 30, towards end face and a blade 5 of the width of filter filtration material 10, is carried the air after being ionized in the mode of the direct contactor blade 5 of wind.Air after being ionized is because contain cation and anion, so the most suitable for the electric discharge that prevents the static between filter filtration material 10 and blade 5.
Preferably static eliminator 30 is carried the air after being ionized all the time.Although this is because cause static discharge when blade 5 and filter filtration material 10 approach in a way, but the not only generation when the blade 5 away from filter filtration material 10 approaches filter filtration material 10 of this state (, in the front end of blade 5 and the electric discharge between filter filtration material 10), and blade 5 be pressed into filter filtration material 10 during also there is (that is, the electric discharge between the side of blade 5 and filter filtration material 10).
In the rivel processing unit (plant) 100 of present embodiment described above because rivel add man-hour filter filtration material 10 and blade 5 all not in electriferous state, so can prevent from forming pin hole because of electric discharge on filter filtration material 10.
Embodiment
Below, by embodiment, the present invention is described, but the invention is not restricted to following embodiment.
(embodiment 1)
As filter filtration material, prepare following filter filtration material: at filter material, see through under the condition that wind speed is 5.3cm/sec, particle footpath is that the arresting efficiency of particle more than 0.1 μ m is more than 99.9999%, and the pressure loss is that 50Pa is above and below 500Pa, is applicable to air filter unit.
Use the rivel processing unit (plant) forming as shown in Figures 1 and 2, on one side from more carrying the air being ionized by the side of filter filtration material towards end face and a blade of filter filtration material than static eliminator, filter filtration material is carried out to rivel processing on one side, as rivel goods, manufacture 10 samples.In addition, with regard to the condition of rivel processing, bending speed is made as to 62 foldings/min, the temperature of heater that is disposed at the rear of blade is made as to 80 ℃.In addition, as static eliminator, use the iron nozzle (MODEL NIH-55) of springtime motor society system.
(comparative example 1)
To carry from top towards the surface of filter filtration material the air being ionized, manufacture similarly to Example 1 10 samples except the position of static eliminator being changed to the tight upstream side of pleating machine.
(evaluation)
For the sample (filter filtration material after rivel processing) of embodiment 1 and comparative example 1, measure arresting efficiency.Particularly, will by filter filtration material, (with plane, be seen as 100cm
2) the speed of air be adjusted into 5.3cm/ second, to the upstream side of filter filtration material, supply with 10
7individual/liter polydispersion dioctyl phthalate (DOP) particle.Utilize corpuscular counter to measure the airborne DOP particle concentration of upstream side and seen through the airborne DOP particle concentration in the downstream of filter filtration material, and obtaining arresting efficiency based on following formula.The particle diameter of DOP particle is 0.1 μ m～0.2 μ m.
Arresting efficiency (%)=［ 1-(downstream concentration/upstream side concentration ］ * 100
The measurement result of above-mentioned arresting efficiency is, by arresting efficiency, is that more than 99.9999% sample is judged to be without leaking, and situation has in addition been judged to be to leakage.
Then, to being judged to be of leak free sample, according to the formula of " 100-arresting efficiency (%) ", obtain transmitance (%), and obtain evaluation of estimate according to the formula of " Log(transmitance (%)/100) ".That is, represent that side's arresting efficiency that evaluation of estimate is high is high.In addition, the evaluation of estimate of the filter filtration material before rivel processing is 7.08.
Table 1 indicates leak free result and evaluation of estimate.
[table 1]
As shown in table 1, before rivel processing, only in the comparative example 1 of the air after the surface transport of filter filtration material is ionized, 4 in 10 samples leak.This means and can form pin hole with high probability.On the other hand, towards end face and a blade of filter filtration material, carry in the embodiment 1 of the air after being ionized, do not form pin hole, all samples is all less than leaking.
In addition, in embodiment 1, compare comparative example 1, arresting efficiency is higher.Its reason is thought due to the generation that has suppressed small pin hole.
Claims (3)
1. the rivel processing method of a filter filtration material, both sides to filter filtration material from thickness direction push a blade and described filter filtration material is carried out to rivel add man-hour, utilize static eliminator towards end face and a described blade of described filter filtration material, to carry the air being ionized from the side of described filter filtration material.
2. the rivel processing method of filter filtration material as claimed in claim 1, wherein,
Described filter filtration material comprises polytetrafluoroethylstephanoporate stephanoporate plasma membrane and aeration supporting material.
3. a rivel processing unit (plant), possesses:
Reciprocating pleating machine, the both sides to filter filtration material from thickness direction push a blade and described filter filtration material are carried out to rivel processing; And
Static eliminator, carries the mode of the air after being ionized to be disposed at the side of described pleating machine with the end face towards described filter filtration material and a described blade.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-165215 | 2011-07-28 | ||
| JP2011165215A JP5839547B2 (en) | 2011-07-28 | 2011-07-28 | Filter filter medium pleating method and pleating apparatus |
| PCT/JP2012/002292 WO2013014826A1 (en) | 2011-07-28 | 2012-04-02 | Method for forming pleats in filtering member and device for forming pleats |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103547351A true CN103547351A (en) | 2014-01-29 |
| CN103547351B CN103547351B (en) | 2017-02-15 |
Family
ID=47600704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280024530.9A Active CN103547351B (en) | 2011-07-28 | 2012-04-02 | Method for forming pleats in filtering member and device for forming pleats |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5839547B2 (en) |
| CN (1) | CN103547351B (en) |
| TW (1) | TWI569951B (en) |
| WO (1) | WO2013014826A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105214383A (en) * | 2014-05-30 | 2016-01-06 | 日本无机株式会社 | Filter material and crease processing method thereof and air purifier air cleaner |
| CN107639885A (en) * | 2017-10-30 | 2018-01-30 | 天津远达滤清器股份有限公司 | A kind of paper folding shaping equipment of cleaner filter paper |
| CN112516684A (en) * | 2020-10-22 | 2021-03-19 | 九江七所精密机电科技有限公司 | Nondestructive pleating process for filter material |
| CN113260443A (en) * | 2018-12-28 | 2021-08-13 | 日东电工株式会社 | Filter pleat assembly and air filter unit |
| CN113272038A (en) * | 2018-12-28 | 2021-08-17 | 日东电工株式会社 | Filter pleat assembly and air filter unit |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6185735B2 (en) * | 2013-03-28 | 2017-08-23 | 日東電工株式会社 | Filter filter production equipment |
| CA3011293A1 (en) | 2016-01-12 | 2017-07-20 | Bioelectron Technology Corporation | Tocopherol and tocotrienol quinone derivatives for increasing thiosulfate levels or decreasing hydrogen sulfide levels |
| CN106273671B (en) * | 2016-10-27 | 2018-10-02 | 东莞市盛联滤清器制造有限公司 | One kind stacking formula stacker equipment and moulding process |
| CN107376511B (en) * | 2017-08-24 | 2023-05-12 | 联合滤洁流体过滤与分离技术（北京）有限公司 | Oblique pleat pleating machine for water filtering material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1228349A (en) * | 1992-11-06 | 1999-09-15 | 帕尔公司 | Pleating apparatus |
| US20020170434A1 (en) * | 2001-03-16 | 2002-11-21 | Nitto Denko Corporation | Filtering medium for air filter and process for producing the same |
| JP2002346320A (en) * | 2001-05-24 | 2002-12-03 | Daikin Ind Ltd | Filter medium, filter pack and method for manufacturing air filter unit |
| CN101210404A (en) * | 2006-12-25 | 2008-07-02 | 王金夫 | Fuel oil filter paper and producing technique thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2208481T3 (en) * | 2001-03-02 | 2004-06-16 | Airflo Europe N.V. | FILTER OF COMPOSITE MATERIAL AND MANUFACTURING PROCEDURE. |
| JP2006196255A (en) * | 2005-01-12 | 2006-07-27 | Toray Ind Inc | Discharge treatment device of sheet, discharge treatment method thereof and porous polyester film |
| JP4791049B2 (en) * | 2005-02-16 | 2011-10-12 | ニチアス株式会社 | Air filter sheet, method for manufacturing the same, and air filter |
| JP4208870B2 (en) * | 2005-10-05 | 2009-01-14 | 春日電機株式会社 | Surface treatment equipment for long objects such as films |
| JP2010073496A (en) * | 2008-09-18 | 2010-04-02 | Hitachi Plant Technologies Ltd | Static eliminator |
-
2011
- 2011-07-28 JP JP2011165215A patent/JP5839547B2/en not_active Expired - Fee Related
-
2012
- 2012-04-02 WO PCT/JP2012/002292 patent/WO2013014826A1/en active Application Filing
- 2012-04-02 CN CN201280024530.9A patent/CN103547351B/en active Active
- 2012-04-06 TW TW101112208A patent/TWI569951B/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1228349A (en) * | 1992-11-06 | 1999-09-15 | 帕尔公司 | Pleating apparatus |
| US20020170434A1 (en) * | 2001-03-16 | 2002-11-21 | Nitto Denko Corporation | Filtering medium for air filter and process for producing the same |
| JP2002346320A (en) * | 2001-05-24 | 2002-12-03 | Daikin Ind Ltd | Filter medium, filter pack and method for manufacturing air filter unit |
| CN101210404A (en) * | 2006-12-25 | 2008-07-02 | 王金夫 | Fuel oil filter paper and producing technique thereof |
Non-Patent Citations (1)
| Title |
|---|
| 吉林化学工业公司设计院等译: "《静电安全指南》", 31 July 1982 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105214383A (en) * | 2014-05-30 | 2016-01-06 | 日本无机株式会社 | Filter material and crease processing method thereof and air purifier air cleaner |
| CN105214383B (en) * | 2014-05-30 | 2019-09-27 | 日本无机株式会社 | Filter material and its crease processing method and air purifier air filter |
| CN107639885A (en) * | 2017-10-30 | 2018-01-30 | 天津远达滤清器股份有限公司 | A kind of paper folding shaping equipment of cleaner filter paper |
| CN113260443A (en) * | 2018-12-28 | 2021-08-13 | 日东电工株式会社 | Filter pleat assembly and air filter unit |
| CN113272038A (en) * | 2018-12-28 | 2021-08-17 | 日东电工株式会社 | Filter pleat assembly and air filter unit |
| CN112516684A (en) * | 2020-10-22 | 2021-03-19 | 九江七所精密机电科技有限公司 | Nondestructive pleating process for filter material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103547351B (en) | 2017-02-15 |
| TW201304946A (en) | 2013-02-01 |
| WO2013014826A1 (en) | 2013-01-31 |
| TWI569951B (en) | 2017-02-11 |
| JP2013028873A (en) | 2013-02-07 |
| JP5839547B2 (en) | 2016-01-06 |
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