CN103550986B - High-air permeability woven fabric laminated filtering material and preparation method thereof as well as laminating device - Google Patents
High-air permeability woven fabric laminated filtering material and preparation method thereof as well as laminating device Download PDFInfo
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Abstract
The invention discloses a high-air permeability woven fabric laminated filtering material and a preparation method thereof as well as a laminating device. The high-air permeability woven fabric laminated filtering material comprises a woven fabric base material and a PTFE (Polytetrafluoroethylene) microporous membrane, wherein salient points are arranged on the woven fabric base material, and the PTFE microporous membrane is compounded on the salient points; the plane tensile force of the woven fabric base material is greater than the plane tensile force of the PTFE microporous membrane. The preparation method of the high-air permeability woven fabric laminated material comprises the following steps: bulging the surface of the woven fabric base material, and compounding the bulged surface with the PTFE microporous membrane at intervals at high temperature through hot pressing, thus obtaining the high-air permeability woven fabric laminated filtering material. Due to the adoption of the preparation method, the problems that a conventional laminated filtering material is low in air permeability and short in service life and the membrane is seriously damaged are solved. The high-air permeability woven fabric laminated filtering material is high in air permeability, large in treatment air volume and long in service life and has relatively high fracture resistance property; the preparation method is simple and capable of substantially reducing the damage to the membrane; the laminating device is simple in structure, convenient to use and easy to control.
Description
Technical field
The present invention relates to a kind of high Air permenbility woven fabric coated filter material, its preparation method and film covering device used thereof.
Background technology
In air dedusting industry, with the characteristic of its surface filtration, coated filter material has that filter efficiency is high, running resistance is low, deashing is easy and deashing number of times is few, process air quantity is large, long service life and being used widely.And the coating technique of coated filter material has two kinds: one to be binder method, two is high-temperature hot platen presses.The former because of binding agent temperature tolerance difference and ageing of binders problem be eliminated gradually, the latter is then the technique be widely adopted.The hot pressing laminating machine nucleus equipment that high-temperature hot platen press uses is made up of a high temperature hot-rolling and a high temperature resistant rubber roll or cold steel rod.Because woven fabric coated filter material base material is all plane, in the process of overlay film, PTFE microporous barrier and woven fabric base material consistency from top to bottom form through the hot pressing of high temperature hot-rolling.So just bring following problem: no matter be binding agent overlay film or high temperature hot pressing overlay film, PTFE microporous barrier almost bonds completely with the plane of woven fabric base material, the whole face of PTFE microporous barrier is subject to the damage of high moderate pressure, causes the brute force of film, the reduction of Air permenbility; Weaving cotton cloth if base material is chemical fiber machine, also likely blocking PTFE micropore because melting chemical fibre or roll adhesive dot, cause air penetrability to reduce; Equally, base material is also obtained very closely knit by hot pressing, thus have impact on process air quantity and the service life of coated filter material.Especially environment temperature lower and folding overweight in, coated filter material face or folding line there will be the phenomenon that film splits, and this has had a strong impact on the service life of filter efficiency and filter bag.
Summary of the invention
The object of this invention is to provide a kind of high Air permenbility woven fabric coated filter material, its preparation method and film covering device used thereof.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is as follows:
A kind of high Air permenbility woven fabric coated filter material, comprise woven fabric base material and PTFE microporous barrier, woven fabric base material is provided with salient point, and PTFE microporous barrier is compounded on salient point; The plane strain of woven fabric base material is greater than the plane strain of PTFE microporous barrier.
Above-mentioned filtrate has increased substantially filter efficiency, has increased process air quantity, extends service life; Drastically reduce the area the damage of PTFE microporous barrier in preparation process, the disconnected fine phenomenon of nothing, pliability are good simultaneously; The plane strain that the plane strain of woven fabric base material is greater than PTFE microporous barrier effectively overcomes cryogenic film and splits phenomenon.
PTFE micropore thickness is 5 ~ 15 μm, and aperture is 0.2 ~ 1 μm, the surface density 100 ~ 800g/m of woven fabric base material
2.The service life of overlay film can be extended so further, ensure filter efficiency simultaneously.
Above-mentioned PTFE microporous barrier through batch mixing, striking adobe, push, roll, longitudinal stretching, cross directional stretch, the operation manufacture such as thermal finalization form.
The plane strain of woven fabric base material is preferably 1 ~ 7kg, and the plane strain of PTFE microporous barrier is preferably 0 ~ 1kg.Cryogenic film can be overcome further like this and split phenomenon, not affect outward appearance and the serviceability of filtrate simultaneously.
The preparation method of above-mentioned high Air permenbility woven fabric coated filter material, by woven fabric substrate surface blistering, and by the face of blistering and PTFE microporous barrier gap high temperature hot pressing compound, to obtain final product.
Woven fabric base material can adopt the air such as twist yarn, zero twisted yarn, folded yarn, buiky yarn or interlacing yarn or mechanically deform yarn etc. to weave.
Woven fabric base material preferably adopts interlacing yarn to weave; When weaving, 2 ~ 8 times of weft yarn number to be 2 ~ 8 times of warp yarn count or warp yarn count be latitude number yarn; Preferably, 2 ~ 5 times of weft yarn number to be 2 ~ 5 times of warp yarn count or warp yarn count be latitude number yarn; More preferably, 2 ~ 4 times of weft yarn number to be 2 ~ 4 times of warp yarn count or warp yarn count be latitude number yarn.Employing interlacing yarn is weaved, and one of object improves gas permeability and the folding resistance of coated filter material, extends life of bag filter; Warp thread and weft yarn adopt the number of different times to weave, and mainly in order to realize the object of blistering, thus ensureing gas permeability and the treating capacity of filtrate, extending the service life of filtrate simultaneously.
Interlacing yarn is prepared interlacing yarn nozzle used and is comprised a deferent and air inlet pipe, and silk deferent is vertically connected with air inlet pipe; Described silk deferent is spliced by the upper arc tube of internal diameter to be the lower semicircle pipe of 3 ~ 8mm and internal diameter be 6 ~ 10mm; The central angle of upper arc tube is 90 ~ 150 °; The length of silk deferent is 30 ~ 80mm, and air inlet pipe internal diameter is 2 ~ 5mm; Time prepared by interlacing yarn, air pressure is 4 ~ 10kg, and over feed rate(OFR) is 5 ~ 30%, and humidity is 40 ~ 90%.Adopt above-mentioned interlacing yarn nozzle and process conditions further can ensure gas permeability and the folding resistance of coated filter material, further extend life of bag filter.Air inlet pipe is preferably connected with silk deferent central vertical.
The raw fibre of woven fabric base material is: the mixture of one or more any proportionings in glass fibre, basalt fibre, polypropylene fibre, polyethylene fibre, polyimide fiber, PET, P84 fiber, PTFE fiber, Kafra fiber, aramid fiber or PA fiber; The filament diameter of described raw fibre is 1 ~ 20 μm, is preferably 2 ~ 16 μm, is more preferably 3 ~ 11 μm; The gas permeability of coated filter material, folding resistance and service life can be ensured so further.
Woven fabric base material needs through chemical surface treatment before overlay film, gives the good waterproof of base material, heatproof, folding, acid-alkali-corrosive-resisting, antistatic and good overlay film performance.In chemical treating process, need to keep salient point upwards, do not destroy the shape of salient point as far as possible, want adjusting furnace temperature to make the temperature difference of upper surface and lower surface within the scope of 10 ~ 100 DEG C simultaneously, allowing chemical pretreatment solution move to the top of salient point, is the basis that overlay film is established.
Above-mentioned chemical surface treatment chemical pretreatment solution used is preferably made up of following component: the water of gamma-aminopropyl-triethoxy-silane 0.2-1%, ptfe emulsion 12-18%, polyacrylate dispersion 10-14%, silicone oil-2856-10%, fluorine-containing water repellent WG-88001-3% and surplus, described percentage is mass percent.Adopt physical property, chemical property and overlay film performance that above-mentioned treatment fluid can ensure needed for base material.
Above-mentioned gap high temperature hot pressing complex method is: adopt upper and lower two high temperature hot-rollings to pressure, the temperature of hot-rolling is 260 ~ 450 DEG C, speed is 0.5 ~ 25 m/min, the gap of two high temperature hot-rollings lower than the gross thickness of woven fabric base material after blistering, higher than the thickness of woven fabric base material before blistering; The cornerite of woven fabric base material on hot-rolling is 150 ~ 180 °.One of selection object of above-mentioned cornerite scope is that pre-hot substrate improves overlay film efficiency and compound film quality.
Prepare a film covering device for above-mentioned high Air permenbility woven fabric coated filter material, comprise woven fabric base material feeding mechanism, PTFE microporous barrier feeding mechanism, two hot-rolling identical tension laminating machine, coated filter material tension controller and coated filter material identical tension winder; Woven fabric base material feeding mechanism and PTFE microporous barrier feeding mechanism connect with two hot-rolling identical tension laminating machine respectively, and two hot-rolling identical tension laminating machine connects with coated filter material tension controller and coated filter material identical tension winder order again successively.
Woven fabric base material feeding mechanism comprises woven fabric base material identical tension unreeling machine, the woven fabric base material that order connects and connects cloth machine, woven fabric base material identical tension storage cloth machine, woven fabric base material constant tension controller and woven fabric base material flatten mechanism, and woven fabric base material flatten mechanism connects with pair hot-rolling identical tension laminating machine; PTFE microporous barrier feeding mechanism comprises PTFE microporous barrier identical tension unreeling machine, PTFE microporous barrier constant tension controller and the PTFE microporous barrier flatten mechanism that order connects, and PTFE microporous barrier flatten mechanism connects with two hot-rolling identical tension laminating machine.
Adopt the preparation method of said apparatus: initiatively unreeled by the woven fabric base material good through stentering forming chemical treatment, coated hot-rolling 180 ° is with preheating, and salient point is positioned at the outside of base material; PTFE microporous barrier good for biaxial tension is initiatively unreeled, with woven fabric base material consistency from top to bottom; The plane strain of PTFE film is the smaller the better when keeping flattening, and is generally less than 1kg.The plane strain of base material is far longer than the plane strain of PTFE microporous barrier, and object is the film slightly pine after peritonaeum between salient point, and the film that can resist Yin Wendu, fold etc. causes splits; Enter after base material and PTFE microporous barrier consistency from top to bottom two hot-rolling identical tension laminating machine to the gap of pressing hot-rolling, the size in this gap mixes up locking according to the height of base material salient point in advance; Base material is when quickly through high temperature pair roller, high temperature heats rapidly film and the base material at salient point place, make film and salient point because the effect of temperature, pressure is firmly bonded as one, do not have the place of salient point then to keep non-caked state, and be not subject to the damage of high temperature, pressure; Due to the optimum organization of temperature, gap, speed, under guarantee film and the sufficiently high situation of salient point bonding intensity, the damaged degree of film is minimum, and keeps bonding point still to have micropore to exist.The temperature of hot-rolling is 260 ~ 450 DEG C, and speed is 0.5 ~ 25 m/min.By this film and the good high Air permenbility woven fabric coated filter material rolling of base material compound, check, cut, make and become filter bag for client.This coated filter material is surface filtration, and process air quantity is large, windage is little, deashing number of times is few, pressure oscillation is little, filter efficiency is high, long service life, has good cost performance and economic benefit, social benefit.
The NM technology of the present invention is prior art.
Of the present inventionly efficiently solve the problem that existing coated filter material air penetrability is low, membrane damage is serious, service life is short; Height Air permenbility woven fabric coated filter material air penetrability of the present invention is high, process air quantity is large, long service life, has higher fracture resistance; Simple and the damage considerably reduced film of preparation method of the present invention; Film covering device structure of the present invention is simple, easy to use, easily control.
Accompanying drawing explanation
Fig. 1 is coating technique schematic diagram;
Fig. 2 is that interlacing yarn nozzle and interlacing yarn manufacture schematic diagram;
Fig. 3 is the A-A direction view of Fig. 2;
Fig. 4 is woven fabric four pieces of satin fabric structure figure;
Fig. 5 is film covering device structural representation.
In figure, 1 is woven fabric base material, 2 is salient point, 3 is PTFE microporous barrier, 4 is lower high temperature hot-rolling, 5 is upper high temperature hot-rolling, 6 is high Air permenbility woven fabric coated filter material, 7 is upper arc tube, 8 is lower semicircle pipe, 9 is air inlet pipe, 10 is raw tow, 11 is interlacing yarn, 12 is coated filter material identical tension winder, 13 is woven fabric base material identical tension unreeling machine, 14 is coated filter material tension controller, 15 connect cloth machine for woven fabric base material, 16 is high Air permenbility woven fabric coated filter material, 17 is woven fabric base material identical tension storage cloth machine, 18 is woven fabric base material constant tension controller, 19 is woven fabric base material flatten mechanism, 20 is two hot-rolling identical tension laminating machines, 21 is PTFE microporous barrier flatten mechanism, 22 is PTFE microporous barrier constant tension controller, 23 is PTFE microporous barrier, 24 is PTFE microporous barrier identical tension unreeling machine, 25 is silk deferent.
Detailed description of the invention
In order to understand the present invention better, illustrate content of the present invention further below in conjunction with embodiment, but content of the present invention is not only confined to the following examples.
Embodiment 1
Woven fabric base material is that fiberglass woven is weaved cotton cloth, and all adopts interlacing yarn through weft yarn, and weft yarn number is 2 times of warp yarn count, therefore presents bump structure, the gross thickness 0.6 ± 0.05mm of woven fabric base material, surface density 550g/m
2, fabric structure: four pieces of satin (Crowfoot satin), substrate plane tension force 2.6kg;
Interlacing yarn interlacing yarn nozzle used and technological parameter are as shown in Figure 2,3: interlacing yarn nozzle lower semicircle pipe internal diameter is 6mm, and upper arc tube internal diameter is 10mm, and upper arc tube central angle is 120 °, silk road pipe range 45mm, air inlet pipe internal diameter is 3.5, air pressure 6kg, over feed rate(OFR) 20%, humidity 60%.
Woven fabric base material chemical surface treatment before overlay film chemical pretreatment solution used comprises: gamma-aminopropyl-triethoxy-silane (Nanjing Lian Gui Chemical Co., Ltd.) 0.5%, ptfe emulsion (the concentrated dispersion liquid of weaving, solid content 60%; Zhong Hao Chenguang Research Institute of Chemical Industry Co., Ltd) 15%, polyacrylate dispersion (dermatine emulsion, solid content 50%; Beijing Dongfang Yakeli Chemical Science Co., Ltd) 12%, silicone oil-285(Jinan Xin Qiye Chemical Co., Ltd.) 8%, fluorine-containing water repellent WG-8800(Jiangsu Johnny Fluorin Material Technology Co., Ltd.) 2%, all the other are water, and it is stand-by that uniform stirring is mixed into suspension.In chemical treating process, need to keep salient point upwards, do not destroy the shape of salient point as far as possible, bake out temperature: 230 DEG C, cloth bottom surface, cloth upper surface 250 DEG C, allowing chemical pretreatment solution move to the top of salient point, is the basis that overlay film is established, film forming (emulsion is formed on the surface of base material and combines firmly soft film) temperature 280 DEG C;
PTFE micropore thickness 10 μm used, 0.6 μm, aperture, porosity 80%.The calendering tape thickness of this film 220 μm, vertical draws multiplying power 11 times, horizontally draws multiplying power 22 times, and the ratio of finish and powder is 28:100.The plane strain 0.5kg. of film during overlay film
Woven fabric base material, when overlay film, adopts stentering forming impregnation process technique, completely constant tensile control.Film covering device, comprises woven fabric base material feeding mechanism, PTFE microporous barrier feeding mechanism, two hot-rolling identical tension laminating machine, coated filter material tension controller and coated filter material identical tension winder; Woven fabric base material feeding mechanism and PTFE microporous barrier feeding mechanism connect with two hot-rolling identical tension laminating machine respectively, and two hot-rolling identical tension laminating machine connects with coated filter material tension controller and coated filter material identical tension winder order again successively.
Woven fabric base material feeding mechanism comprises woven fabric base material identical tension unreeling machine, the woven fabric base material that order connects and connects cloth machine, woven fabric base material identical tension storage cloth machine, woven fabric base material constant tension controller and woven fabric base material flatten mechanism, and woven fabric base material flatten mechanism connects with pair hot-rolling identical tension laminating machine; PTFE microporous barrier feeding mechanism comprises PTFE microporous barrier identical tension unreeling machine, PTFE microporous barrier constant tension controller and the PTFE microporous barrier flatten mechanism that order connects, and PTFE microporous barrier flatten mechanism connects with two hot-rolling identical tension laminating machine.
Utilize said apparatus by blistering and through the woven fabric base material of chemical pretreatment solution process and PTFE microporous barrier gap high temperature hot pressing compound; Adopt stentering forming impregnation process technique, completely constant tensile control.The gap of two hot-pressing rollers is 0.5mm, upper roll temperature 360 DEG C, lower roll temperatures 220 DEG C, pressure 0.4MPa, linear velocity 5 ms/min, obtains high Air permenbility woven fabric coated filter material.
Comparative example 1
Substantially the same manner as Example 1, difference is: woven fabric base material is that fiberglass woven is weaved cotton cloth, weft yarn varicosity, thickness 0.6 ± 0.05mm, surface density 550g/m
2fabric structure: four pieces of satin (Crowfoot satin), do not have bump structure, substrate plane tension force 2.6kg.
Embodiment 2
Fiberglass woven is weaved cotton cloth, and all adopts interlacing yarn through weft yarn, and weft yarn number is 2 times of warp yarn count, therefore presents bump structure, the gross thickness 0.8 ± 0.05mm of woven fabric, surface density 750g/m
2fabric structure: four pieces of satin, substrate plane tension force 3kg;
Interlacing yarn of the present invention nozzle used and technological parameter are: interlacing yarn nozzle lower semicircle pipe internal diameter is 6mm, and upper arc tube internal diameter is 10mm, and the central angle of upper arc tube is 120 °, silk road pipe range 45mm, air inlet pipe internal diameter is 3.5mm, air pressure 6kg, over feed rate(OFR) 20%, humidity 60%.
Woven fabric base material chemical surface treatment before overlay film chemical pretreatment solution used comprises: gamma-aminopropyl-triethoxy-silane (Nanjing Lian Gui Chemical Co., Ltd.) 0.5%, ptfe emulsion (Zhong Hao Chenguang Research Institute of Chemical Industry Co., Ltd) 15%, polyacrylate dispersion (Beijing Dongfang Yakeli Chemical Science Co., Ltd) 12%, silicone oil-285(Jinan Xin Qiye Chemical Co., Ltd.) 8%, fluorine-containing water repellent WG-8800(Jiangsu Johnny Fluorin Material Technology Co., Ltd.) 2%, all the other are water, and it is stand-by that uniform stirring is mixed into suspension.In chemical treating process, need to keep salient point upwards, do not destroy the shape of salient point as far as possible, bake out temperature: 240 DEG C, cloth bottom surface, cloth upper surface 260 DEG C, allowing chemical pretreatment solution move to the top of salient point, is the basis that overlay film is established, film forming (emulsion is formed on the surface of base material and combines firmly soft film) temperature 280 DEG C.
PTFE micropore thickness 10 μm used, 0.6 μm, aperture, porosity 80%.The calendering tape thickness of this film 220 μm, vertical draws multiplying power 11 times, horizontally draws multiplying power 22 times, and the ratio of finish and powder is 28:100.The plane strain 0.5kg of film during overlay film.Woven fabric base material, when overlay film, adopts stentering forming impregnation process technique, completely constant tensile control.Adopt film covering device as described in Example 1, by blistering and through the woven fabric base material of chemical pretreatment solution process and PTFE microporous barrier gap high temperature hot pressing compound; Adopt stentering forming impregnation process technique, completely constant tensile control.The gap of two hot-pressing rollers is 0.5mm, upper roll temperature 360 DEG C, lower roll temperatures 220 DEG C, pressure 0.4MPa, linear velocity 4.5 ms/min, obtains high Air permenbility woven fabric coated filter material.
Comparative example 2
Substantially the same manner as Example 1, difference is: woven fabric base material is that fiberglass woven is weaved cotton cloth, weft yarn varicosity, thickness 0.8 ± 0.05mm, surface density 750g/m
2fabric structure: four pieces of satin (Crowfoot satin), do not have bump structure, substrate plane tension force 3.5kg.
The technique do not illustrated in the various embodiments described above all can refer to existing technique.
Under 127Pa pressure, detect base material and retroperitoneal ventilative situation, adopt three pin industrial sewing machines, tetrafluoro/glass compound stitching sewing machine, and in low temperature (< 5 DEG C) situation, observe folding and unfolded film split situation, the results are shown in Table 1:
Table 1
| Sequence number | Glass base material (cm/s) | Coated filter material (cm/s) | Sewing caudacoria splits phenomenon | Folding caudacoria splits phenomenon |
| Comparative example 1 | 20 | 1.5 | Seriously | Seriously |
| Embodiment 1 | 20 | 4 | Nothing | Nothing |
| Comparative example 2 | 15 | 1.2 | Seriously | Seriously |
| Embodiment 2 | 15 | 3 | Nothing | Nothing |
Because the coated filter material of technique of the present invention and device fabrication is greatly improved in splitting in ventilative, cryogenic film, process air quantity is large, long service life, has saved dedusting operating cost.
Claims (8)
1. a preparation method for high Air permenbility woven fabric coated filter material, is characterized in that: high Air permenbility woven fabric coated filter material comprises woven fabric base material and PTFE microporous barrier, and woven fabric base material is provided with salient point, and PTFE microporous barrier is compounded on salient point; The plane strain of woven fabric base material is greater than the plane strain of PTFE microporous barrier;
The preparation method of above-mentioned high Air permenbility woven fabric coated filter material is by woven fabric substrate surface blistering, and by the face of blistering and PTFE microporous barrier gap high temperature hot pressing compound, to obtain final product;
Woven fabric base material adopts interlacing yarn to weave; When weaving, 2 ~ 8 times of weft yarn number to be 2 ~ 8 times of warp yarn count or warp yarn count be latitude number yarn.
2. the preparation method of high Air permenbility woven fabric coated filter material as claimed in claim 1, it is characterized in that: PTFE micropore thickness is 5 ~ 15 μm, aperture is 0.2 ~ 1 μm, the surface density 100 ~ 800g/m of woven fabric base material
2.
3. the preparation method of high Air permenbility woven fabric coated filter material as claimed in claim 1 or 2, is characterized in that: the plane strain of woven fabric base material is the plane strain of 1 ~ 7kg, PTFE microporous barrier is 0 ~ 1kg.
4. the preparation method of high Air permenbility woven fabric coated filter material as claimed in claim 1 or 2, is characterized in that: interlacing yarn is prepared interlacing yarn nozzle used and comprised a deferent and air inlet pipe, and silk deferent is vertically connected with air inlet pipe; Described silk deferent is spliced by the upper arc tube of internal diameter to be the lower semicircle pipe of 3 ~ 8mm and internal diameter be 6 ~ 10mm; The central angle of upper arc tube is 90 ~ 150 °, and the length of silk deferent is 30 ~ 80mm, and air inlet pipe internal diameter is 2 ~ 5mm; Time prepared by interlacing yarn, air pressure is 4 ~ 10kg, and over feed rate(OFR) is 5 ~ 30%, and humidity is 40 ~ 90%.
5. the preparation method of high Air permenbility woven fabric coated filter material as claimed in claim 1 or 2, is characterized in that: the raw fibre of woven fabric base material is: the mixture of one or more any proportionings in glass fibre, basalt fibre, polypropylene fibre, polyethylene fibre, polyimide fiber, PET, P84 fiber, PTFE fiber, Kafra fiber, aramid fiber or PA fiber; The filament diameter of described raw fibre is 1 ~ 20 μm; After woven fabric substrate surface blistering, surface treatment is carried out with chemical pretreatment solution, chemical pretreatment solution is made up of following component: the water of gamma-aminopropyl-triethoxy-silane 0.2-1%, ptfe emulsion 12-18%, polyacrylate dispersion 10-14%, silicone oil-285 6-10%, fluorine-containing water repellent WG-8800 1-3% and surplus, described percentage is mass percent.
6. the preparation method of high Air permenbility woven fabric coated filter material as claimed in claim 1 or 2, it is characterized in that: gap high temperature hot pressing complex method is: adopt upper and lower two high temperature hot-rollings to pressure, the temperature of hot-rolling is 260 ~ 450 DEG C, speed is 0.5 ~ 25 m/min, the gap of two high temperature hot-rollings lower than the gross thickness of woven fabric base material after blistering, higher than the thickness of woven fabric base material before blistering; The cornerite of woven fabric base material on hot-rolling is 150 ~ 180 °.
7. prepare a film covering device for the coated filter material prepared by preparation method of high Air permenbility woven fabric coated filter material described in claim 1-6 any one, it is characterized in that: comprise woven fabric base material feeding mechanism, PTFE microporous barrier feeding mechanism, two hot-rolling identical tension laminating machine, coated filter material tension controller and coated filter material identical tension winder; Woven fabric base material feeding mechanism and PTFE microporous barrier feeding mechanism connect with two hot-rolling identical tension laminating machine respectively, and two hot-rolling identical tension laminating machine connects with coated filter material tension controller and coated filter material identical tension winder order again successively.
8. film covering device as claimed in claim 7, it is characterized in that: woven fabric base material feeding mechanism comprises woven fabric base material identical tension unreeling machine, the woven fabric base material that order connects and connects cloth machine, woven fabric base material identical tension storage cloth machine, woven fabric base material constant tension controller and woven fabric base material flatten mechanism, and woven fabric base material flatten mechanism connects with pair hot-rolling identical tension laminating machine; PTFE microporous barrier feeding mechanism comprises PTFE microporous barrier identical tension unreeling machine, PTFE microporous barrier constant tension controller and the PTFE microporous barrier flatten mechanism that order connects, and PTFE microporous barrier flatten mechanism connects with two hot-rolling identical tension laminating machine.
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| CN105648614B (en) * | 2015-12-29 | 2017-06-13 | 哈尔滨工业大学 | A kind of porous heat-insulating strong film functionalization lunar exploration high of gradient distribution takes the preparation method of earth coring soft bag |
| CN106827772A (en) * | 2017-01-17 | 2017-06-13 | 优居优住家居装饰（北京）有限公司 | The equipment of decoration panel overlay film |
| CN106906556B (en) * | 2017-03-09 | 2017-11-28 | 建滔（连州）玻璃纤维有限公司 | A kind of high Resisting fractre Strength-Glass-Fibre cloth and its production method |
| CN112337189B (en) * | 2020-10-19 | 2021-11-19 | 浙江华基环保科技有限公司 | Garbage incineration flue gas dedusting filter material and processing method thereof |
| CN114575165A (en) * | 2022-03-08 | 2022-06-03 | 江苏博诚新科技材料有限公司 | Preparation method of high-flexibility folding-resistant polytetrafluoroethylene glass fiber material |
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| EP0409535B1 (en) * | 1989-07-18 | 1994-03-23 | Mitsui Petrochemical Industries, Ltd. | A nonwoven fabric and a method of manufacturing the same |
| JPH11253719A (en) * | 1998-03-10 | 1999-09-21 | Nitto Denko Corp | Filter sheet for air filter, manufacture of filter sheet, air-pereable supporting material to be used for same filter sheet, and air filter |
| CN1293930C (en) * | 2003-09-30 | 2007-01-10 | 许大鹏 | Surface symmetrical concave-covex staggered honeycomb fiber filter screen |
| CN101362056A (en) * | 2007-08-09 | 2009-02-11 | 东丽纤维研究所（中国）有限公司 | Coated filter material |
| CN201257335Y (en) * | 2008-09-04 | 2009-06-17 | 上海博格工业用布有限公司 | Film-coating filter felt on glass fiber woven fabric |
| CN202343014U (en) * | 2011-08-02 | 2012-07-25 | 中材科技股份有限公司 | Hybrid fiber needled felt membrane filter material |
| JP5956132B2 (en) * | 2011-10-13 | 2016-07-27 | 花王株式会社 | Non-woven |
| CN203620398U (en) * | 2013-11-05 | 2014-06-04 | 中材科技股份有限公司 | Woven cloth film-laminating filter material with high air permeability and film-laminating device used for preparing filter material |
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Effective date of registration: 20200220 Address after: 210000 No.30, Andri, Yuhua West Road, Nanjing, Jiangsu Province Patentee after: Nanjing Glass Fibre Research and Design Institute company limited Address before: Jiangning District of Nanjing City, Jiangsu province 211100 Jiangning Science Park Tong Road No. 99 Patentee before: Sinoma Science & Technology Co.,Ltd. |