RU2002108690A - METHOD AND DEVICE FOR MANUFACTURE OF FIBROUS ELECTRIC FABRIC USING WETTING LIQUID AND NON-AQUEAR POLAR LIQUID - Google Patents

METHOD AND DEVICE FOR MANUFACTURE OF FIBROUS ELECTRIC FABRIC USING WETTING LIQUID AND NON-AQUEAR POLAR LIQUID

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Publication number
RU2002108690A
RU2002108690A RU2002108690/15A RU2002108690A RU2002108690A RU 2002108690 A RU2002108690 A RU 2002108690A RU 2002108690/15 A RU2002108690/15 A RU 2002108690/15A RU 2002108690 A RU2002108690 A RU 2002108690A RU 2002108690 A RU2002108690 A RU 2002108690A
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Russia
Prior art keywords
web
liquid
fabric
wetting
specified
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RU2002108690/15A
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Russian (ru)
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RU2266771C2 (en
Inventor
Филип Д. ЕИТЦМАН
Алан Д. РУССО
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3М Инновейтив Пропертиз Компани
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Priority claimed from US09/415,291 external-priority patent/US6406657B1/en
Application filed by 3М Инновейтив Пропертиз Компани filed Critical 3М Инновейтив Пропертиз Компани
Publication of RU2002108690A publication Critical patent/RU2002108690A/en
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Publication of RU2266771C2 publication Critical patent/RU2266771C2/en

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Claims (18)

1. Способ изготовления волокнистых электретных полотен, состоящий из этапов: замачивания состоящего из непроводящих волокон полотна смачивающей жидкостью; насыщения замоченного полотна неводной полярной жидкостью, и основательного высушивания полотна.1. A method of manufacturing a fibrous electret cloths, consisting of the steps of: soaking a non-conductive fiber web with a wetting liquid; saturation of the soaked web with a non-aqueous polar liquid, and thoroughly drying the web. 2. Способ по п.1, отличающийся тем, что указанной полярной жидкостью является вода.2. The method according to claim 1, characterized in that said polar liquid is water. 3. Способ по п.2, отличающийся тем, что применяемая вода очищена и тем, что указанное полотно является волокнистым нетканым полотном.3. The method according to claim 2, characterized in that the water used is purified and that said fabric is a fibrous nonwoven fabric. 4. Способ по пп.1-3, отличающийся тем, что указанные волокна являются микроволокнами, состоящими из полипропилена и добавки, улучшающей фильтрацию масляного тумана.4. The method according to claims 1 to 3, characterized in that said fibers are microfibers consisting of polypropylene and an additive that improves the filtration of oil mist. 5. Способ по п.2, отличающийся тем, что указанное волокнистое электретное полотно может демонстрировать по результатам теста на ДОФ-проницаемость и перепад давления коэффициент качества не менее 0,4 (мм Н2O)-1.5. The method according to claim 2, characterized in that said fibrous electret web can demonstrate a quality factor of at least 0.4 (mm H 2 O) -1 according to the results of the test for DOP permeability and pressure drop. 6. Способ по пп.1-5, отличающийся тем, что в состав упомянутых волокон входит улучшающая фильтрацию масляного тумана добавка и тем, что способ содержит дополнительный этап закалки волокнистого полотна, предшествующий этапу замачивания полотна.6. The method according to claims 1-5, characterized in that the composition of the mentioned fibers includes an additive that improves oil mist filtration and that the method comprises an additional step of hardening the fibrous web preceding the step of soaking the web. 7. Способ по пп.1-5, отличающийся тем, что в состав упомянутых волокон входит добавка, выбранная из группы, в которую входят термически стабильные органические соединения или олигомеры, содержащие, по меньшей мере, один фторированный компонент, термически стабильные органические триазиновые соединения или олигомеры, содержащие, помимо атомов азота в составе триазиновых групп, по меньшей мере, еще один атом азота, или их сочетания, а также пространственно затрудненные амины, фторированный оксазолидинон, поли[[6-(1,1,3,3,-тетраметилбутил)амино]-s-триазин-2,4-диил][(2,2,6,6.-тетраметил-4-пиперидил)имино]гексаметилен[(2,2,6,6.-тетраметил-4-пиперидил)имино], или их сочетания.7. The method according to PP.1-5, characterized in that the composition of the mentioned fibers includes an additive selected from the group consisting of thermally stable organic compounds or oligomers containing at least one fluorinated component, thermally stable organic triazine compounds or oligomers containing, in addition to the nitrogen atoms in the composition of the triazine groups, at least one more nitrogen atom, or combinations thereof, as well as spatially hindered amines, fluorinated oxazolidinone, poly [[6- (1,1,3,3, - tetramethylbutyl) amino] -s-t yazin-2,4-diyl] [(2,2,6,6.-tetramethyl-4-piperidyl) imino] hexamethylene [(2,2,6,6.-tetramethyl-4-piperidyl) imino], or combinations. 8. Способ по п.1, отличающийся тем, что на поверхности или в составе упомянутых волокон присутствует фторсодержащая добавка.8. The method according to claim 1, characterized in that a fluorine-containing additive is present on the surface or in the composition of said fibers. 9. Способ по п.1, отличающийся тем, что указанное полотно состоит из микроволокон, вытянутых из расплава.9. The method according to claim 1, characterized in that the said fabric consists of microfibers, elongated from the melt. 10. Способ по п.1, отличающийся тем, что указанное полотно замачивается путем сжимания полотна, погруженного в указанную смачивающую жидкость и предоставления ему возможности оставаясь погруженным в жидкость вернуться в несжатое состояние; и/или пропускания потока указанной смачивающей жидкости сквозь указанное полотно; возбуждения звуковых колебаний в указанной смачивающей жидкости, соприкасающейся с указанным полотном; и/или повышения давления указанной смачивающей жидкости; и/или погружения указанного полотна в указанную смачивающую жидкость.10. The method according to claim 1, characterized in that the said sheet is soaked by compressing the sheet immersed in the specified wetting liquid and allowing it to remain immersed in the liquid to return to the uncompressed state; and / or passing a stream of said wetting fluid through said web; excitation of sound vibrations in the specified wetting fluid in contact with the specified canvas; and / or increasing the pressure of said wetting fluid; and / or immersing said web in said wetting fluid. 11. Способ по пп.1-10, отличающийся тем, что содержит этап удаления избытка смачивающей жидкости, предшествующий этапу насыщения указанного полотна указанной водной полярной жидкостью.11. The method according to claims 1 to 10, characterized in that it comprises the step of removing excess wetting liquid, preceding the step of saturation of the specified canvas specified aqueous polar liquid. 12. Способ по п.1, отличающийся тем, что указанное полотно сушится на воздухе; воздействием источника тепла на полотно; воздействием статического вакуума на полотно; воздействием потока нагретого сухого газа на полотно; и/или механическим удалением указанной водной полярной жидкости.12. The method according to claim 1, characterized in that the said fabric is dried in air; the influence of a heat source on the canvas; exposure to static vacuum on the canvas; the impact of a stream of heated dry gas on the canvas; and / or mechanical removal of said aqueous polar liquid. 13. Способ по п.1, отличающийся тем, что указанные волокна состоят из полипропилена, поли-4-метил-1-пентена, или из смеси или сополимера, содержащих одно или оба этих вещества.13. The method according to claim 1, characterized in that said fibers consist of polypropylene, poly-4-methyl-1-pentene, or a mixture or copolymer containing one or both of these substances. 14. Способ по пп.1-13, отличающийся тем, что указанное нетканое электретное полотно, подвергнутое термически стимулированному разряду, практически не обнаруживает поляризации в направлении, перпендикулярном плоскости этого полотна.14. The method according to claims 1 to 13, characterized in that said non-woven electret fabric, subjected to a thermally stimulated discharge, practically does not detect polarization in the direction perpendicular to the plane of this fabric. 15. Способ по пп.1-14, отличающийся тем, что указанное полотно обладает измеренной плотностью заряда не меньшей, чем 0,3 мкКл/м2.15. The method according to claims 1-14, characterized in that said web has a measured charge density of not less than 0.3 μC / m 2 . 16. Способ по пп.1-15, отличающийся тем, что указанная смачивающая жидкость выдерживает тест на смачивание продолжительностью 2 с.16. The method according to PP.1-15, characterized in that the specified wetting fluid withstands a wetting test lasting 2 seconds. 17. Устройство для изготовления волокнистого электретного полотна, состоящее из первого механизма, приспособленного для замачивания указанного полотна указанной смачивающей жидкостью; второго механизма, приспособленного для насыщения указанного полотна указанной полярной жидкостью; и сушильного устройства, приспособленного для удаления указанной водной полярной жидкости из указанного волокнистого полотна.17. A device for manufacturing a fibrous electret web, consisting of a first mechanism adapted to soak said web with said wetting liquid; a second mechanism adapted to saturate said web with said polar liquid; and a drying device adapted to remove said aqueous polar liquid from said fibrous web. 18. Устройство по п.17, отличающееся тем, что дополнительно снабжено транспортирующим механизмом, способным перемещать указанное полотно от первого механизма во второй механизм, а затем в сушильное устройство.18. The device according to 17, characterized in that it is further provided with a transporting mechanism capable of moving the specified fabric from the first mechanism to the second mechanism, and then to the drying device.
RU2002108690/15A 1999-10-08 2000-01-24 Method and a device for manufacture of a fibrous electret linen with application of a wetting liquid and a water polar liquid RU2266771C2 (en)

Applications Claiming Priority (2)

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US09/415,291 1999-10-08
US09/415,291 US6406657B1 (en) 1999-10-08 1999-10-08 Method and apparatus for making a fibrous electret web using a wetting liquid and an aqueous polar liquid

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US (2) US6406657B1 (en)
EP (1) EP1229988B1 (en)
JP (1) JP4518725B2 (en)
KR (1) KR100627757B1 (en)
CN (1) CN1212199C (en)
AT (1) ATE370781T1 (en)
AU (1) AU767679B2 (en)
BR (1) BR0014559B1 (en)
CA (1) CA2385770A1 (en)
DE (1) DE60036127T2 (en)
PL (1) PL354171A1 (en)
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WO (1) WO2001026778A1 (en)

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