KR100448974B1 - The air cleaner filter and the method thereof - Google Patents

The air cleaner filter and the method thereof Download PDF

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Publication number
KR100448974B1
KR100448974B1 KR10-2001-0023469A KR20010023469A KR100448974B1 KR 100448974 B1 KR100448974 B1 KR 100448974B1 KR 20010023469 A KR20010023469 A KR 20010023469A KR 100448974 B1 KR100448974 B1 KR 100448974B1
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South Korea
Prior art keywords
filter
filter material
activated carbon
nonwoven fabric
air
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KR10-2001-0023469A
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Korean (ko)
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KR20010068161A (en
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정래익
김백암
구철오
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(주)우리텍
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/02—Masks
    • 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
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/0618—Non-woven
    • 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
    • B01D2239/0659—The layers being joined by needling
    • 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
    • B01D2239/10—Filtering material manufacturing

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Filtering Materials (AREA)

Abstract

본 발명은 유해가스 및 분진 제거기능이 있는 공기정화용 필터와 그 제조방법에 관한 것으로서, 더욱 상세하게는 유해가스 흡착능력이 있는 활성탄, 활성탄표면에 KI, NiCl2, FeCl3, MnCl2, CaCl2등의 어느 한가지 또는 두가지 이상의 물질이 함침에 의해 첨착된 첨착활성탄, 제올라이트, 일라이트 등이 여과입체로 사용되며, 상부여과재와 하부여과재는 여과입체의 입자크기보다 작은 공극을 가진 부직포로 구성되며, 중간여과재는 여과입체가 삽입될 수 있는 크기의 공극을 가진 부직포로 구성되고, 중간여과재에 호퍼로 여과입체를 뿌려 삽입시킨 후 상부여과재와 중간여과재와 하부여과재를 차례로 적층시킨 다음 이 적층체를 니들펀칭방식으로 적층체를 고정부착시키도록 형성한 공기정화용 필터로서 여과입체의 성능을 저해하는 접착제를 사용하지 않으므로 부직포와 여과입체의 공기정화능력을 최대한으로 향상시킬 수 있으며, 여과입체의 자유로운 입도조절로 필터를 통과하는 공기의 압력차이인 압력손실조절이 가능하고, 손쉽게 재단, 변형이 가능하여 일상생활뿐만 아니라 산업현장에도 적용이 가능한 공기정화용 필터와 그 제조방법에 관한 것이다.The present invention relates to an air purifying filter having a harmful gas and dust removal function and a method of manufacturing the same, and more particularly, to activated carbon having an ability to adsorb harmful gases, KI, NiCl 2 , FeCl 3 , MnCl 2 , CaCl 2 on the surface of activated carbon. Impregnated activated carbon, zeolite, illite, etc., in which any one or two or more substances are impregnated by impregnation are used as the filter solids, and the upper filter material and the lower filter material are composed of a nonwoven fabric having pores smaller than the particle size of the filter particles. The middle filter is composed of a nonwoven fabric having a pore size into which the filter body can be inserted.The filter medium is sprinkled with a hopper into the middle filter material, and the upper filter material, the middle filter material and the lower filter material are laminated in this order, and the laminate is needled. The air purifying filter is formed to fix the laminated body by the punching method. Therefore, it is possible to improve the air purification ability of non-woven fabric and filter body to the maximum, and it is possible to control the pressure loss, which is the pressure difference of air passing through the filter, by freely controlling the size of the filter body. It also relates to an air purification filter and a method of manufacturing the same that can be applied to industrial sites.

Description

공기정화용 필터와 그 제조방법{The air cleaner filter and the method thereof}Filter for air purification and its manufacturing method {The air cleaner filter and the method

본 발명은 유해가스 및 분진 제거기능이 있는 공기정화용 필터와 그 제조방법에 관한 것으로서, 더욱 상세하게는 유해가스 흡착능력이 있는 활성탄, 활성탄표면에 KI, NiCl2, FeCl3, MnCl2, CaCl2등의 어느 한가지 또는 두가지 이상의 물질이 함침에 의해 첨착된 첨착활성탄, 제올라이트, 일라이트 등이 여과입체로 사용되며, 상부여과재와 하부여과재는 여과입체의 입자크기보다 작은 공극을 가진 부직포로 구성되고, 중간여과재는 여과입체가 삽입될수 있는 크기의 공극을 가진 부직포로 구성되며, 중간여과재에 호퍼로 여과입체를 뿌려 삽입시킨 후 상부여과재와 중간여과재와 하부여과재를 차례로 적층시킨 다음 이 적층체를 니들펀칭방식으로 적층체를 고정부착시켜 형성된 공기정화용 필터에 관한 것이다.The present invention relates to an air purifying filter having a harmful gas and dust removal function and a method of manufacturing the same, and more particularly, to activated carbon having an ability to adsorb harmful gases, KI, NiCl 2 , FeCl 3 , MnCl 2 , CaCl 2 on the surface of activated carbon. Impregnated activated carbon, zeolite, illite, etc., impregnated with one or two or more substances by impregnation, are used as the filter solids, and the upper filter material and the lower filter material are composed of a nonwoven fabric having pores smaller than the particle size of the filter particle. The intermediate filter material consists of a nonwoven fabric with a pore size into which the filter body can be inserted.The filter medium is sprinkled and inserted into the middle filter material, and the upper filter material, the middle filter material and the lower filter material are laminated in this order, and the laminate is needle punched. It relates to an air purifying filter formed by fixing a laminate in a manner.

종래의 공기정화용 필터는 활성탄과 고분자계 접착제 등을 혼합하여 벌집형상으로 압출성형시킨 공기정화용 필터나, 부직포 양면에 접착제를 바른 후 활성탄을 뿌려서 접착시킨 필터 등이 사용되었다. 그러나, 벌집형상으로 압출성형시킨 필터의 경우 활성탄이 가지고 있는 흡착성능을 최대로 이용할 수 있다는 장점이 있으나, 벌집상 성형의 기술적인 어려움과 이에 따른 경제성의 문제가 크고 적용범위가 한정되어 특별한 장치에만 사용가능하다는 문제점이 있으며, 부직포에 활성탄을 접착시킨 필터는 공정이 간단하고 다용도로 사용이 가능하나 접착제에 의해 접착되는 활성탄의 양이 소량이며 접착제가 활성탄의 세공들을 막아 유해가스나 분진의 흡착성능이 떨어지며 광범위한 활성탄의 입도조절이 불가능하다는 문제점이 있다.Conventional air purification filters have been used for mixing the activated carbon and a polymer adhesive, such as an air purification filter extruded in a honeycomb shape, or a filter bonded to the nonwoven fabric by applying an adhesive on both sides of the nonwoven fabric. However, in the case of the honeycomb-extruded filter, there is an advantage that the adsorption performance of activated carbon can be utilized to the maximum, but the technical difficulty of the honeycomb molding and the economical problems thereof are large and the scope of application is limited, so that only a special device is used. There is a problem that can be used, the filter which bonded activated carbon to the nonwoven fabric is simple and versatile, but the amount of activated carbon adhered by the adhesive is small and the adhesive blocks the pores of the activated carbon so that the adsorption performance of harmful gas or dust There is a problem that it is impossible to control the particle size of a wide range of activated carbon.

본 발명은 이러한 공기정화용 필터의 문제점들을 해결하기 위한 것으로, 여과입체의 입도조절로 필터를 통과하는 공기의 압력손실의 자유로운 조절과, 여과입체의 성능을 저해하는 접착제를 사용하지 않으므로 부직포와 여과입체의 공기정화능력을 최대한으로 향상시키는 것에 그 목적이 있다.The present invention is to solve the problems of the filter for air purification, the non-woven fabric and the filter solid because it is free to control the pressure loss of the air passing through the filter by the particle size control of the filter, and does not use an adhesive that inhibits the performance of the filter solid The purpose is to maximize the air purification capacity of the.

이러한 목적을 달성하기 위해 여과재로는 폴리에스테르, 폴리에틸렌 등의 합성섬유로 제작된 부직포를 사용하고 여과입체로는 활성탄, 활성탄표면에 KI, NiCl2, FeCl3, MnCl2, CaCl2등의 어느 한가지 또는 두가지 이상의 물질이 함침에 의해 첨착된 첨착활성탄, 제올라이트, 일라이트 등을 사용하며, 상부여과재와 하부여과재는 여과입체보다 작은 공극이 있는 부직포를 사용하고, 중간여과재는 여과입체가 삽입될 수 있는 정도의 크기를 공극이 있는 부직포를 사용하여, 중간여과재의 공극에 여과입체가 채워지도록 한 후 적층체를 니들펀칭을 사용하여 실로 얽어 적층체 사이가 고정압착되도록 하는 것에 본 발명의 특징이 있다.In order to achieve this purpose, a nonwoven fabric made of synthetic fibers such as polyester and polyethylene is used as the filter material, and any one of activated carbon and KI, NiCl 2 , FeCl 3 , MnCl 2 , CaCl 2, etc. Or impregnated activated carbon, zeolite, illite, etc., in which two or more substances are impregnated by impregnation. The upper filter material and the lower filter material use a nonwoven fabric having a smaller pore size than the filter body, and the middle filter material can be inserted into the filter body. It is a feature of the present invention that a nonwoven fabric having a pore size is used to fill the pores of the intermediate filter material, and then the laminate is entangled with yarn using needle punching to fix the compression between the laminates.

도 1은 본 발명 필터의 단면도1 is a cross-sectional view of the filter of the present invention

도 2는 본 발명 필터의 제조공정2 is a manufacturing process of the filter of the present invention

< 도면의 부호에 대한 간단한 설명 ><Brief Description of Symbols in Drawings>

1. 상부여과재 2. 중간여과재1. Upper filter material 2. Middle filter material

3. 하부여과재 4. 여과입체3. Lower filter material 4. Filter

5. 적층체 6. 호퍼5. Laminate 6. Hopper

7. 니들펀칭 8a, 8a', 8b, 8b', 8c, 8c', 8d, 8d'. 롤러9. 실7. Needle punching 8a, 8a ', 8b, 8b', 8c, 8c ', 8d, 8d'. Roller 9. room

본 발명 필터의 구성을 상세히 설명하면 다음과 같다.The configuration of the filter of the present invention will be described in detail as follows.

본 발명은 부직포와 여과입체로 구비된 공기정화용 필터에 있어서, 필터는 도 1에 도시된 바와 같이 상부여과재(1)와 여과입체(4)가 삽입된 중간여과재(2)와 하부여과재(3)가 차례로 적층된 적층체(5)로 구성되어 있다.The present invention is a filter for air purification provided with a non-woven fabric and a filter body, the filter is an intermediate filter material (2) and the lower filter material 3, the upper filter material (1) and the filter body (4) is inserted as shown in FIG. It consists of the laminated body 5 laminated | stacked one by one.

적층체(5)의 여과재는 분진을 포집하기 위한 것으로서 섬유 굵기가 1.0 ~ 8.0 데니아(denier)범위의 폴리에틸렌, 폴리스틸렌, 폴리프로필렌, 폴리에스테르, 폴리아미드계, 멜트브로운, 양모소재 등의 장섬유 또는 단섬유를 이용하여 단독으로 또는 혼합된 부직포(바람직하게는 폴리에틸렌 대 폴리프로필렌이 6대 4의 비율로 구성된 부직포)로 구비되며, 상부여과재(1)와 하부여과재(3)는 중간여과재(2)에 삽입되어 있는 여과입체(4)가 외부로 빠져나가지 않도록 여과입체(4)보다 크기가 작은 공극이 형성된 것을 사용하며, 중간여과재(2)는 여과입체(4)가 삽입될수 있는 크기의 공극을 가진 부직포로 구비되어 있다.The filter medium of the laminate 5 is for collecting dust, and has a fiber thickness of 1.0 to 8.0 denier (polyethylene, polystyrene, polypropylene, polyester, polyamide-based, melt blown, long fibers such as wool material) Or a single fiber alone or mixed with a nonwoven fabric (preferably a nonwoven fabric comprised of polyethylene to polypropylene in a ratio of 6 to 4), and the upper filter material 1 and the lower filter material 3 are intermediate filter materials 2 ) Is used to form a smaller pore size than the filter body (4) so that the filter body (4) is inserted into the outside, the intermediate filter material (2) is a pore size of the filter body (4) can be inserted Equipped with a non-woven fabric having.

여과입체(4)는 입도크기가 8 ~ 200메쉬(mesh) 범위의 것을 사용하며, 암모니아(NH3), 이산화황(SO2), 황화수소(H2S), 벤젠(C6H6), 메틸메르캅탄(CH3SH) 등의 유해가스를 제거하기 위한 것으로서 입자표면에 다수개의 세공(pore)이 있어 유해가스분자의 흡착성질을 가진 활성탄, 활성탄표면에 KI, NiCl2, FeCl3, MnCl2, CaCl2등의 어느 한가지 또는 두가지 이상의 물질이 함침에 의해 첨착된 첨착활성탄, 제올라이트, 일라이트 중 어느 한가지를 사용하며, 중간여과재(2)에 여과입체(4)가 호퍼(6)에 의해 뿌려져 중간여과재(2)의 공극사이에 삽입되어 있으며, 중간여과재(2)에 삽입되는 여과입체(4)의 입도크기를 자유롭게 조절할 수 있으므로 작은크기의 여과입체를 충진할 경우에는 적층체(5)사이로 유해가스여과시 공기중의 유해가스의 흡착량은 증가하지만 공기가 통과되기 어려워 필터 통과전과 통과후의 압력손실차이가 증가하고, 반면에 여과입체(4)의 입도크기를 크게 할 경우에는 필터를 공기가 통과하기가 쉬워 압력손실은 감소하지만 필터에 흡착되는 유해가스의 양이 감소되는 현상이 생기게 된다. 따라서 본 발명의 필터는 여과입체(4)의 자유로운 입도조절로필터를 통과하는 공기의 압력손실조절이 가능하게 되어 압력손실이 알맞고 유해가스 흡착력은 뛰어난 필터를 주위 여건과 상황에 맞추어 제조할 수 있다.The filter particles 4 have a particle size ranging from 8 to 200 mesh, and include ammonia (NH 3 ), sulfur dioxide (SO 2 ), hydrogen sulfide (H 2 S), benzene (C 6 H 6 ), and methyl. It is for removing harmful gas such as mercaptan (CH 3 SH), and it has a large number of pores on the surface of the particles, so that activated carbon has adsorptive properties of harmful gas molecules, KI, NiCl 2 , FeCl 3 , MnCl 2 on the surface of activated carbon , Any one of impregnated activated carbon, zeolite and elite impregnated with one or two or more substances such as CaCl 2 , and the like, and the filter medium 4 is sprayed on the intermediate filter material 2 by the hopper 6. It is inserted between the pores of the intermediate filter material (2), and the particle size of the filter particles (4) inserted into the intermediate filter material (2) can be freely adjusted, so when filling the small size of the filter particles between the stacks (5) Adsorption of harmful gases in the air during toxic gas filtration increases, but air The pressure loss difference before and after passing the filter increases because it is difficult to be excessive. On the other hand, when the particle size of the filter body 4 is increased, air is more likely to pass through the filter. The amount is reduced. Therefore, the filter of the present invention can control the pressure loss of the air passing through the filter by freely controlling the particle size of the filter body 4, so that the pressure loss is suitable and the excellent gas adsorption power can be manufactured according to the ambient conditions and circumstances. .

본 발명 필터의 제조방법은 다음과 같다.The manufacturing method of the filter of this invention is as follows.

본 발명의 필터는 도 2에 도시된 바와 같이 부직포로 구성된 상부여과재(1)와 중간여과재(2)와 하부여과재(3)를 롤러(8a)(8a')(8b)(8b')(8c)(8c')를 통해 각각 이동시키며, 호퍼(6)를 통해 입도크기가 8 ~ 200메쉬(mesh) 범위의 여과입체(4)를 중간여과재(2)의 공극사이에 뿌려주어 삽입시킨 다음, 롤러(8d)(8d')를 통해 여과재들을 차례로 적층시킨 후 접착제에 의한 여과입체(4)의 흡착력 저하를 방지하고 자유로운 입도조절이 가능하도록 하며 여과입체(4)가 한쪽으로 쏠리거나 유동되는 것을 방지하기 위해 적층체(5)를 니들펀칭(7)에 의해 실(9)로 얽어 고정하여 1 ~ 20mm 두께의 공기정화용 필터로 성형하며, 필요에 따라서는 니들펀칭방식 대신 열융착방식으로 압착고정하는 것도 가능하다The filter of the present invention comprises a roller (8a) (8a ') (8b) (8b') (8c) of the upper filter material (1), the middle filter material (2) and the lower filter material (3) composed of a nonwoven fabric as shown in FIG. (8c '), respectively, and through the hopper (6) to sprinkled the filter particles (4) having a particle size range of 8 ~ 200 mesh (gap) between the pores of the intermediate filter material (2), After stacking the filter media through the rollers 8d and 8d 'in order to prevent the adsorbing force of the filter media 4 from being lowered by the adhesive, and to control the particle size freely, the filter media 4 can be pulled or flowed to one side. To prevent this, the laminate 5 is entangled with a seal 9 by needle punching 7 and formed into an air purifying filter having a thickness of 1 to 20 mm, and if necessary, pressing and fixing by heat fusion instead of needle punching. It is also possible

한편, 완성된 공기정화용 필터는 분진 및 유해가스가 적층체(5)의 사이를 통과할 때 부직포로 되어있는 상부여과재(1)와 하부여과재(3)에서 분진을 포집하게 되고, 유해가스의 경우는 중간여과재(2)의 여과입체(4)의 세공에 흡착되며 접착제를 사용하지 아니함으로써 여과입체(4)의 세공에 접착제가 흡착되어 여과입체(4)의 흡착력이 저하되는 것이 없기 때문에 종래보다 높은 유해가스의 제거효율을 가지며, 중간여과재(2)에 삽입되는 여과입체(4)의 입도조절이 자유롭게 가능하여 압력손실조절이 용이하여 압력손실이 적으면서도 흡착력이 뛰어난 공기정화용 필터의제작이 가능하고, 적층체(5)가 합성섬유로 구성되었기 때문에 재단 및 가공이 용이하여 일반생활의 공기정화용 필터나 산업현장의 방진마스크 또는 방독마스크 등 광범위하게 사용이 가능하다.On the other hand, the completed air purification filter collects dust from the upper filter material (1) and the lower filter material (3) that is made of non-woven fabric when dust and harmful gas passes between the laminate (5), in the case of harmful gas Is adsorbed to the pores of the filter body 4 of the intermediate filter material 2, and since the adhesive is adsorbed to the pores of the filter body 4 by not using an adhesive, the adsorption force of the filter body 4 is not lowered. It has high removal efficiency of harmful gas, and it is possible to freely control the particle size of the filter body (4) inserted into the intermediate filter material (2), so it is easy to control the pressure loss, and it is possible to manufacture an air purifying filter having excellent adsorption power with low pressure loss. In addition, since the laminate 5 is made of synthetic fibers, it is easy to cut and process, so that it can be widely used for air purification filters for general life, dust masks or gas masks for industrial sites. All.

이상에서와 같이 본 발명에 의하면 접착제에 의해 여과입체를 접착하지 아니함으로써 접착제로 인한 분진 및 유해가스의 흡착력 저하가 방지되어 공기정화능력이 향상되며, 여과입체의 자유로운 입도조절에 따른 필터 통과전과 통과후의 압력손실조절이 자유롭게 가능하여 압력손실이 적당하고 유해가스흡착력이 뛰어난 공기정화용 필터를 제작할 수 있으며, 필터가 합성섬유로 구성되어 있어 자유로운 모양으로 재단 및 변형이 가능하여 일반생활에서의 공기정화용 필터나 산업현장의 산업용 방진마스크 또는 방독마스크 등 광범위하게 사용이 가능하다.As described above, according to the present invention, the filter body is not adhered by the adhesive, thereby reducing the adsorption power of dust and harmful gases due to the adhesive, thereby improving the air purifying ability, and before and after passing through the filter according to the free particle size control of the filter body. It is possible to freely control the pressure loss afterwards, so that it is possible to manufacture an air purifying filter with moderate pressure loss and excellent adsorption of harmful gases.The filter is composed of synthetic fibers so that it can be cut and deformed in a free shape. B. It can be widely used for industrial dust mask or gas mask at industrial sites.

Claims (3)

여과입체를 부직포층에 내재시켜 니들펀칭으로 고정하여 적층한 방독, 방진필터에 있어서, 여과입체(4)가 빠져나가지 않도록 하고 분진을 포집하기 위한 상하층의 상부여과재(1) 및 하부여과재(3)와, 여과입체(4)가 공극사이에 다량 삽입되고 분진을 포집하기 위한 중간여과재(2)가 상부여과재(1) 및 하부여과재(3) 사이에 적층되어 있어 유해가스 흡착과 분진을 포집하는 여과재의 구조로 되어 있는 것을 특징으로 하는 공기정화용 필터.In a gas filter and a dust filter in which a filter body is embedded in a nonwoven fabric layer and fixed by needle punching, the filter body 4 does not escape and the upper and lower layers of upper and lower filters 1 and 3 for collecting dust are collected. ), And the filter body (4) is inserted between the pores and the intermediate filter material (2) for collecting dust is laminated between the upper filter material (1) and the lower filter material (3) to collect harmful gas and dust. Air purification filter characterized in that the structure of the filter medium. 제 1항에 있어서, 상기 적층체(5)를 방진마스크 또는 방독마스크에 사용하는 것을 특징으로 하는 공기정화용 필터.The air purifying filter according to claim 1, wherein the laminate (5) is used for a dust mask or a gas mask. 부직포와 여과입체로 구비된 공기정화용 필터의 제조방법에 있어서, 여과입체(4)의 크기보다 작은 공극이 형성된 상부여과재(1)와 하부여과재(3)가 롤러(8a)(8a')(8b)(8b')를 통해 이송되고 여과입체(4)보다 굵은 공극이 형성된 중간여과재(2)에는 호퍼(6)를 통해 여과입체(4)가 삽입되고 각각의 여과재를 롤러(8d)(8d')에 통과시켜 차례로 적층된 적층체(5)를 니들펀칭(7)에 의해 실(9)로 고정하는 것으로 특징으로 하는 공기정화용 필터의 제조방법.In the manufacturing method of the air purifying filter provided with the nonwoven fabric and the filter particle, the upper filter material 1 and the lower filter material 3 which formed the space | gap smaller than the size of the filter particle 4 are rollers 8a, 8a ', 8b. The filter medium 4 is inserted through the hopper 6 into the intermediate filter material 2, which is conveyed through 8b 'and has a larger coarse space than the filter body 4, and each filter medium is roller 8d and 8d'. A method for producing an air purifying filter, characterized in that the laminated body (5), which is laminated in order by passing through the sheet), is fixed to the seal (9) by needle punching (7).
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KR101358359B1 (en) * 2012-04-17 2014-02-07 오석원 Filtration media for gas and its manufacturing method
KR20240051488A (en) 2022-10-13 2024-04-22 고려대학교 산학협력단 Method for manufacturing CO adsorbent based on porous carbon material with increased stability to air exposure through Cu and Fe-doped and CO adsorbent prepared thereby

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