WO2007043164A1

WO2007043164A1 - Deodorant filter and antibacterial deodorant filter product

Info

Publication number: WO2007043164A1
Application number: PCT/JP2005/018658
Authority: WO
Inventors: Hideaki Tojo; Osamu Nakamura; Yoshihiro Sasada; Yoshihiko Fujimura
Original assignee: Honda Motor Co., Ltd.; Taikisha Ltd.
Priority date: 2005-10-07
Filing date: 2005-10-07
Publication date: 2007-04-19
Also published as: TW200719931A; WO2007043164A9; JPWO2007043164A1

Abstract

A deodorant filter which can be easily produced according to performance required. Also provided is an antibacterial deodorant filter product which has excellent antibacterial properties and can be inhibited from releasing an ingredient having antibacterial properties. A pair of sidewall members (16) and (18) are bonded respectively to a pair of side edges (12) of a filter part (11) and to a pair of side edges (21) of a deodorant part (20) to thereby unite the filter part (11) with the deodorant part (20). The deodorant part (20) has one or more granular deodorants in each of cells formed with a partitioning member and is covered with an air-permeable member. The deodorant filter (10) is treated with at least one member selected among guanidine antibacterials (I), quaternary ammonium salt antibacterials (II), amino acid antibacterials (III), pyridine antibacterials (IV), quinoline antibacterials (V), acridine antibacterials (VI), and heterocyclic compound antibacterials (VII) containing organic nitrogen or sulfur.

Description

Specification

Deodorizing filter and antibacterial deodorizing filter product

Technical field

[0001] The present invention relates to a deodorizing filter and an antibacterial deodorizing filter product, and more particularly to an air purifying filter having a deodorizing function and an antibacterial deodorizing filter product having an antibacterial property.

Background art

[0002] The deodorizing filter 1 has an integrated type in which a deodorizing member having a deodorizing function and a filtering medium having a filtering function are integrated, and a deodorizing function is provided to the filtering medium itself by kneading a deodorizing agent inside the filtering medium. It can be roughly divided into composite filter media types.

[0003] For example, in the integrated type deodorizing filter 1 shown in FIG. 5, a deodorizing plate layer 3 and a protective material 4 such as a sponge and a filter medium 5 are housed in a frame 1 having an opening 2, and the filter medium 5 is bonded. It is fixed to the frame 1 by welding or the like (see, for example, Patent Document 1).

Patent Document 1: JP-A-10-192645

Disclosure of the invention

Problems to be solved by the invention

[0004] A deodorizing filter is used, for example, as a countermeasure against odors of air taken into buildings or automobiles, and is required to have excellent deodorizing performance with low pressure loss.

[0005] The deodorizing filter has different performance requirements because the type and strength of the odor to be deodorized differ depending on the environment in which it is used. In order to respond to such various requirements quickly and at low cost, the deodorizing filter must be able to flexibly respond to performance adjustments and changes and be easy to manufacture. is there.

[0006] In addition, if bacteria or molds propagate on the deodorizing filter, it may cause odor. In recent years, people have become more comfortable in living spaces and mobile spaces, and prevent odors that cause sick house syndrome or the generation of odors caused by germs that have propagated in air conditioners such as air conditioners and the spread of germs. Countermeasures are demanded, and public institutions are strongly demanding preventive measures against the spread of pathogenic bacteria by air conditioning. To meet these demands, Various products have been developed, but at present, no filter that satisfies both antibacterial and deodorizing properties has been developed.

[0007] At present, the antibacterial and deodorizing treatment of textile products and resin products is treated with quaternary ammonium salt organic antibacterial agents typified by salty benzalkonium and inorganic antibacterial agents typified by silver. Textile products are being developed. However, the inorganic antibacterial agent is a state in which silver is incorporated into the inorganic compound, and this antibacterial agent is kneaded into a resin, or used by adhering to the surface of the object to be treated with the resin. Therefore, the contact between the antibacterial metal and the microbial cell is limited. Members treated with such antibacterial agents were not always sufficient in antibacterial properties against various bacteria whose antibacterial activity was weaker than members treated with organic antibacterial agents. On the other hand, organic antibacterial agents that have been used in the past are superior to inorganic antibacterial agents in terms of antibacterial properties. There was a problem of decreasing over time. In order to prevent this, the organic antibacterial agent is currently fixed by a resin. Furthermore, if the antibacterial agent itself has a deodorizing effect that does not have a deodorizing effect, it must be processed with a deodorizing agent.

[0008] By the way, when an antibacterial property is imparted to a deodorizing filter or the like, if an organic antibacterial agent is fixed by a post-processing method of a conventionally used fiber, the air permeability of the filter is impaired by the resin, resulting in a pressure loss. There was a big problem that it became larger and the filter function was completely lost.

[0009] The present invention has been made in view of such circumstances, and the first problem to be solved by the present invention is to provide a deodorizing filter that can be easily manufactured according to the required performance. It is to try. In addition, the second problem to be solved by the present invention is that the filter function is not impaired, the antibacterial property against various bacteria is excellent, and the durability that can suppress the elution of the component exhibiting the antibacterial property. Is to provide antibacterial deodorizing filter products.

Means for solving the problem

[0010] In order to solve the first problem, the present invention provides a deodorizing filter configured as follows. [0011] The deodorizing filter includes a filtering unit that filters air passing between the main surfaces, a deodorizing unit that deodorizes air passing between the main surfaces, and the main surfaces of the filtering unit and the deodorizing unit. In a state of being opposed to each other, there are provided a pair of side wall members that are fixed to a pair of side surfaces of the filtration unit and a pair of side surfaces of the deodorization unit, respectively, and join the filtration unit and the deodorization unit. The deodorizing part includes a partition member having a plurality of cells penetrating in the direction between the main surfaces of the deodorization part, and one or more granular deodorizers respectively housed in the cells of the partition member; A ventilation member facing the opening of each cell, having an opening smaller than the deodorizing agent, and covering at least the main surface of the deodorizing part.

[0012] In the above configuration, the side surfaces of the filtration unit and the deodorization unit are joined and integrated by the side wall member. Since the above configuration is simple, for example, as shown in FIG. 5, it is easier to manufacture than the configuration in which the filtration unit and the deodorization unit are housed in the frame.

[0013] In the above configuration, the deodorizer stored in each cell of the partition member may be one type or two or more types. Since the granular deodorizing agent can be stored in each cell of the partition member while providing a gap, it is possible to obtain a deodorizing effect while reducing the pressure loss in the deodorizing part.

[0014] According to the above configuration, the filtering unit or the deodorizing unit may be changed according to the request for the pressure loss if the deodorizing unit is changed according to the request for the deodorizing performance. For example, various types of performance (pressure loss, type of odor to be deodorized, deodorization, etc.) can be selected by appropriately selecting the type, size, shape, number, arrangement state, etc. of the granular deodorant stored in each cell of the partition member. Strength, deodorization duration, etc.) can be handled quickly and at low cost, and performance adjustment and change are easy.

[0015] Preferably, the filtering part includes a filter medium bent in a pleat shape. The side wall member is

The filter medium is fixed to both side surfaces of the fold line of the filter medium.

[0016] According to the above configuration, the rigidity of the deodorizing filter can be ensured with a simple configuration by bending the filter medium.

[0017] More preferably, the bent pieces at both ends of the filter medium are extended in a direction substantially perpendicular to the fold line, and the extended portion covers the end face of the deodorizing part.

[0018] In the above configuration, the bent pieces at both ends of the filter medium are extended to cover the end faces of the deodorizing part. Thereby, the end surface of a deodorizing part can be protected.

[0019] According to the above configuration, the periphery of the deodorizing filter is protected by being surrounded by the bent pieces at the both ends of the filter medium and the side wall member, and the filter section is exposed on one main surface of the deodorizing filter, and the deodorizing filter The deodorizing part is exposed on the other main surface of the. Therefore, it is possible to easily handle the deodorizing filter with a simple configuration.

[0020] Further, according to the above configuration, by arranging the deodorizing portion between the bent pieces at both ends of the filter medium, the side wall member can be fixed in a state where the folding interval of the filter medium is maintained. The filter can be easily manufactured.

[0021] More preferably, the partition member has a double cam shape, and is generally deformable in a direction between the pair of side wall members.

[0022] According to the above configuration, when the side wall member is fixed to the side surfaces of the filtration unit and the deodorization unit, the dimension between the side surfaces of the deodorization unit becomes larger than the dimension between the side surfaces of the filtration unit due to the variation in dimensions. However, since the honeycomb-shaped partition member of the deodorizing portion is pushed and deformed by the side wall member, the side wall member can be fixed without hindrance. Therefore, since it is not necessary to increase the dimensional accuracy of the filtration part and the deodorization part, it is easy to reduce the manufacturing cost.

[0023] Preferably, the deodorizing filter comprises (I) a guanidine antibacterial agent, (II) a quaternary ammonium salt antibacterial agent, (III) an amino acid antibacterial agent, (IV) a pyridine antibacterial agent, (V) Treated with at least one selected from quinoline antibacterial agents, (VI) ataridin antibacterial agents, and (VII) organic nitrogen-containing heterocyclic antibacterial agents.

[0024] According to the above configuration, since the growth of bacteria and mold can be suppressed by the antibacterial agent, it is possible to suppress the generation of odor in the deodorizing filter and to prevent the deodorizing performance of the deodorizing filter from being deteriorated. it can.

[0025] When the antibacterial agent having the above configuration is used, the antibacterial component can be made non-eluting or the elution can be suppressed to a low level, so that a deodorizing filter excellent in antibacterial property and deodorizing effect against various bacteria can be obtained.

[0026] Preferably, at least one selected from the antibacterial agents (I) to (VII) is contained at 0.00 :! to 20% by mass of the total mass of the ventilation member.

[0027] The antibacterial agent contained in the ventilation member is 0.001% by mass or more of the total mass of the ventilation member. For example, the ventilation member can exhibit antibacterial properties. If the antibacterial agent contained in the ventilation member is 20% by mass or less of the total mass of the ventilation member, the antibacterial agent is held in a state of permeation into the ventilation member, and the antibacterial agent does not peel off from the ventilation member. Can be.

[0028] Preferably, the filtration part includes a filter medium bent in a pleat shape, and at least one selected from the antibacterial agents (I) to (VII) force is 0.001 of the total mass of the filter medium. Contains ~ 20% by mass.

[0029] If the antibacterial agent contained in the filter medium is 0.001% by mass or more of the total mass of the filter medium, the filter medium can exhibit antibacterial properties. If the antibacterial agent contained in the filter medium is 20% by mass or less of the total mass of the filter medium, the antibacterial agent can be held in a state of permeating the filter medium, and the antibacterial agent can be prevented from peeling off from the filter medium. In addition, pressure loss does not occur due to clogging of filter media by antibacterial agents.

[0030] Preferably, the deodorizing agent includes zeolite. The zeolite is treated with at least one cationic antibacterial agent selected from the antibacterial agents (I) to (VII) to form a complex.

[0031] By forming the complex, the antibacterial agent does not easily elute with water alone, so that the antibacterial function can be maintained.

[0032] Preferably, after the deodorizing member is formed, the deodorizing member is the antibacterial agent (I) to (I).

Treated with at least one selected from VII).

In this case, both the deodorizer ventilation member and the deodorizer can be subjected to antibacterial processing at the same time.

In addition, since the antibacterial agent penetrates and is absorbed by the deodorizing agent through the ventilation member, for example, by adjusting the amount of the aqueous solution containing the antibacterial agent sprayed on the deodorizing member, the deodorizing ability is not lowered. Further, the antibacterial property can be enhanced without the antibacterial agent adsorbed on the deodorizer being eluted.

[0034] Further, in order to solve the second problem, the present invention provides an antibacterial deodorizing filter product having the following configuration.

[0035] The antibacterial deodorizing filter product includes a deodorizing filter including a deodorizing member including a ventilation member, a deodorizing agent sandwiched between the ventilation members, and a filter medium. The deodorizing filter comprises: (I) a guanidine antibacterial agent, (i) a quaternary ammonium salt antibacterial agent, (III) an amino acid antibacterial agent, (I Treated with at least one selected from V) pyridine-based antibacterial agents, (V) quinoline-based antibacterial agents, (VI) ataridin-based antibacterial agents, and (VII) organic nitrogen-containing heterocyclic antibacterial agents.

[0036] When the antibacterial agent having the above-described configuration is used, the antibacterial component can be made non-eluting or the elution can be suppressed low, so that an antibacterial deodorizing filter product excellent in antibacterial and deodorizing effects against various bacteria can be obtained.

[0037] Preferably, the deodorizing filter includes a pair of side wall members that respectively fix the pair of side surfaces of the filter medium and the pair of side surfaces of the deodorizing member. The deodorizing member includes a partition member having a plurality of cells. One or more granular deodorizers are accommodated in the cells of the partition member.

[0038] In the above configuration, the side surfaces of the filter medium and the deodorizing member are combined and integrated by the side wall member. Since the above configuration is simple, for example, the filter medium and the deodorizing member are easily manufactured as compared with the configuration in which the filter medium and the deodorizing member are housed in the frame as shown in FIG.

[0039] In the above configuration, the deodorizing agent stored in each cell of the partition member may be one type or two or more types. Since the granular deodorizing agent can be stored in each cell of the partition member while providing a gap, it is possible to obtain a deodorizing effect while reducing the pressure loss in the deodorizing part.

[0040] According to the above configuration, the filtering unit or the deodorizing unit may be changed according to the request for the pressure loss, which should be changed according to the request for the deodorizing performance. For example, various types of performance (pressure loss, type of odor to be deodorized, deodorization, etc.) can be selected by appropriately selecting the type, size, shape, number, arrangement state, etc. of the granular deodorant stored in each cell of the partition member. Strength, deodorization duration, etc.) can be handled quickly and at low cost, and performance adjustment and change are easy.

[0041] Preferably, the filter medium is bent into a pleat shape. The side wall member is fixed to side surfaces on both ends of the fold line of the filter medium.

[0042] According to the above configuration, the rigidity of the deodorizing filter can be secured with a simple configuration by bending the filter medium.

[0043] More preferably, the bent pieces at both ends of the filter medium are extended in a direction substantially perpendicular to the fold line, and the extended portion covers the end face of the deodorizing member. [0044] In the above configuration, the end face of the deodorizing member can be protected by extending the bent pieces at both ends of the filter medium to cover the end face of the deodorizing member.

[0045] According to the above configuration, the periphery of the deodorizing filter is protected by being surrounded by the bent pieces at the both ends of the filter medium and the side wall member, and the filter medium is exposed on one main surface of the deodorizing filter. The deodorizing member is exposed on the other main surface of the. Therefore, it is possible to easily handle the deodorizing filter with a simple configuration.

[0046] Further, according to the above configuration, by disposing the deodorizing member between the bent pieces at both ends of the filter medium, the side wall member can be fixed in a state in which the filter medium is bent, and the deodorizing filter Manufacturing is easy.

[0047] More preferably, the partition member has a double cam shape, and is generally deformable in a direction between the pair of side wall members.

[0048] According to the above configuration, when the side wall member is fixed to the side surfaces of the filter medium and the deodorizing member, even if the dimension between the side surfaces of the deodorizing member becomes larger than the dimension between the side surfaces of the filter medium due to variation in dimensions. Since the double cam-shaped partition member of the deodorizing member is pushed and deformed by the side wall member, the side wall member can be fixed without hindrance. Therefore, it is not necessary to increase the dimensional accuracy of the deodorizing member, so it is easy to reduce the manufacturing cost.

[0049] Preferably, at least one selected from the antibacterial agents (I) to (VII) is contained at 0.00 :! to 20% by mass of the total mass of the ventilation member.

[0050] If the antibacterial agent contained in the ventilation member is 0.001% by mass or more of the total mass of the ventilation member, the ventilation member can exhibit antibacterial properties. If the antibacterial agent contained in the ventilation member is 20% by mass or less of the total mass of the ventilation member, the antibacterial agent is held in a state of permeation into the ventilation member, and the antibacterial agent does not peel off from the ventilation member. Can be.

[0051] Preferably, at least one selected from the antibacterial agents (I) to (VII) is contained at 0.00 :! to 20% by mass of the total mass of the filter medium.

[0052] If the antibacterial agent contained in the filter medium is 0.001% by mass or more of the total mass of the filter medium, the filter medium can exhibit antibacterial properties. If the antibacterial agent contained in the filter medium is 20% by mass or less of the total mass of the filter medium, the antibacterial agent can be held in a state of permeating the filter medium, and the antibacterial agent can be prevented from peeling off from the filter medium. In addition, pressure due to clogging of filter media by antibacterial agent There is no loss.

[0053] Preferably, the deodorizing agent includes zeolite. The zeolite is treated with at least one cationic antibacterial agent selected from the antibacterial agents (I) to (VII) to form a complex.

[0054] By forming the complex, the antibacterial agent does not easily elute with moisture alone, so that the antibacterial function can be maintained.

[0055] Preferably, after the deodorizing member is formed, the deodorizing member is treated with at least one selected from the antibacterial agents (I) to (VII).

In this case, both the deodorant ventilation member and the deodorizer can be antibacterial processed at the same time.

In addition, since the antibacterial agent penetrates and is adsorbed to the deodorizing agent through the ventilation member, for example, by adjusting the amount of the aqueous solution containing the antibacterial agent sprayed on the deodorizing member, the deodorizing ability is not lowered. Furthermore, the antibacterial property can be enhanced without the antibacterial agent adsorbed on the deodorizer being eluted.

The invention's effect

[0057] The deodorizing filter 1 of the present invention can be easily manufactured according to the required performance because the performance can be easily adjusted and changed, and the configuration is also simple. Further, the antibacterial deodorizing filter product of the present invention has excellent antibacterial properties against various bacteria without impairing the function as a filter, and can suppress elution of components exhibiting antibacterial properties and has durability.

Brief Description of Drawings

FIG. 1 is an exploded perspective view of a deodorizing filter. (Example)

FIG. 2 is a cross-sectional view of a main part of a deodorizing filter. (Example)

FIG. 3 is a cross-sectional view of a main part of a deodorizing filter. (Example)

FIG. 4 is an explanatory diagram of a manufacturing process of a deodorizing filter. (Example)

FIG. 5 is an exploded perspective view of a deodorizing filter. (Conventional example)

Explanation of symbols

[0059] 10 Deodorizing filter

11 Filter media (filter section) 12 sides

13 Folding line

14, 15 folded pieces

16, 18 Side wall member

20 Deodorizing material (deodorizing part)

21 side

22 Partition member

24 cells

26 Ventilation member

28a, 28b Deodorizer

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to FIGS.

[0061] As shown in the exploded perspective view of FIG. 1, the deodorizing filter 10 includes side surfaces of the filtering medium 11 and the deodorizing member 20 in a state where the filtering medium 11 as the filtering unit is overlaid on the deodorizing member 20 as the deodorizing unit. Side wall members 16 and 18 are fixed to 12 and 21 by adhesion, welding or the like. In the deodorizing filter 10, the filter medium 11 is exposed from one main surface, and the deodorizing member 20 is exposed from the other main surface. The deodorizing filter 10 is used in a state where one main surface where the filter medium 11 is exposed is arranged on the upstream side and the other main surface where the deodorizing member 20 is exposed is arranged on the downstream side with respect to the air flow. The filter medium 11 filters air by collecting dust. The deodorizing member 20 deodorizes air by removing odors in the air.

[0062] The filter medium 11 is folded into a pleat shape, and the side wall member is formed on the side surfaces 12 on both ends of the fold line 13.

16 and 18 are fixed by adhesion, welding or the like. By bending the filter medium 11, the rigidity of the deodorizing filter 10 can be secured with a simple configuration. The bent pieces 14, 15 at both ends of the filter medium 11 are extended in a direction substantially perpendicular to the fold line 13, and the extended portions cover the end face of the deodorizing member 20. As a result, the deodorizing filter 10 is surrounded and protected by the bent pieces 14 and 15 at both ends of the side wall members 16 and 18 and the filter medium 11, and is easy to handle with a simple configuration.

[0063] As will be described in detail later, (I) guanidine antibacterial agent, (i) quaternary ammonium salt antibacterial agent , (M) Amino acid antibacterial agent, (IV) Pyridine antibacterial agent, (V) Quinoline antibacterial agent, (VI) Ataridin antibacterial agent, (νπ) Heterocyclic antibacterial agent containing organic nitrogen, In addition, at least one kind or more must be contained in the deodorizing member 20 composed of the ventilation member 26 and the deodorizing agent 28a, 28b in the cell 24 shown in FIG. 3, or in the filter medium 11 shown in FIG. Thus, a deodorizing filter excellent in antibacterial properties and deodorizing effects against various bacteria can be obtained by de-eluting antibacterial components or suppressing elution to a low level. For example, when the odor is generated by bacteria and molds growing on the upstream main surface 1 Is of the filter medium 11 that collects dust, Isb is applied in advance to the upstream main surface l is of the filter medium 11. It is sufficient to impregnate the filter medium 11 in advance. The antibacterial agent can suppress the growth of bacteria and mold, suppress the generation of odor in the filter medium 11 in the deodorizing filter 10, and prevent the deodorizing filter 10 from deteriorating in deodorizing performance.

[0064] As shown in FIG. 2 which is a sectional view taken along line II II in FIG. 1 and FIG. 3 which is a sectional view taken along line III III in FIG. 1 and FIG. In addition, the deodorizing member 20 wraps the entire honeycomb-shaped partition member 22 with a ventilation member 26.

The partition member 22 has a plurality of cells 24. The shape of the cell 24 is not limited to the illustrated hexagonal shape, but may be a substantially triangular shape, a substantially square shape, a substantially circular shape, or the like. As shown in FIG. 3, each cell 24 has openings on both main surface sides of the deodorizing member 20 and penetrates in the direction between the main surfaces of the deodorizing member 20. The opening of the cell 24 is covered with a ventilation member 26.

[0066] The partition member 22 is formed in a honeycomb shape using paper, synthetic resin, nonwoven fabric, or the like so as to be somewhat deformed. As a result, when the side wall members 16 and 18 are fixed to the side surfaces 12 and 21 of the filter medium 11 and the deodorizing member 20, the distance between the side surfaces 21 of the deodorizing member 20 is larger than the dimension between the side surfaces 12 of the filter medium 11 due to size variation. Even if the dimension of the deodorizing member 21 is larger, the honeycomb-shaped partition member 22 of the deodorizing member 21 is pushed and deformed by the side wall members 16 and 18, so that the side wall members 16 and 18 can be fixed without hindrance. Therefore, since it is not necessary to increase the dimensional accuracy of the filter medium 11 and the partition member 22 of the deodorizing member 20, it is easy to reduce the manufacturing cost.

[0067] Each cell 24 of the partition member 22 contains one or more granular deodorizers 28a, 28b such as activated carbon and zeolite. Although schematically shown in FIGS. 2 and 3, the combination of the types of deodorizers 28a and 28b and the dimensions, shape, number, arrangement state, etc. of the deodorizers 28a and 28b may be appropriately selected. Deodorant 28a, 28b is accommodated in each cell 24 so that a gap is formed, and while ensuring air permeability while reducing pressure loss, a deodorizing effect is obtained.

[0068] For the ventilation member 26, for example, a fiber material having air permeability such as a mesh nonwoven fabric is used. The opening (mesh) of the ventilation member 26 is made smaller than the deodorizers 28a and 28b accommodated in the cell 24 so that the deodorizers 28a and 28b do not escape to the outside.

[0069] The side wall members 16 and 18 are coated with adhesive, hot melt or the like on the surfaces 17 and 19 facing the filter medium 11 and the deodorizing member 20, and the side surfaces 12 and the deodorizing member 20 of the filter medium 11 (in detail, the ventilation member 26). ).

Specifically, for example, as shown in FIG. 4, first, the outer main surface lis of the filter medium 11 is opposed to the bottom surface 32 of the jig 30, and the bent pieces 14 and 15 at both ends of the filter medium 11 are jigs. Place the filter medium 11 on the jig 30 so as to face the side surface 34 of the 30. Next, the deodorizing member 20 is placed on the filter medium 11. Thereby, the folding interval of the filter medium 11 is maintained. In this state, the side wall members 16 and 18 are fixed to the side surfaces 12 and 21 of the filter medium 11 and the deodorizing member 20. When the jig 30 is used in this way, the manufacture becomes easy.

[0071] The deodorization filter 10 can be appropriately configured according to required performance (pressure loss, type of odor to be deodorized, deodorization intensity, deodorization duration, etc.). For example, regarding the deodorization performance, the type, size, shape, number, and arrangement of the deodorizers 28a and 28b stored in each cell 24 of the partition member 22 of the deodorization member 20 and each of the partition members 22 of the deodorizer 20 The size and shape of the cell 24 and the type of antibacterial and antifungal agents applied to the filter medium 11 may be appropriately selected. For pressure loss, the type, size, shape, number and arrangement of deodorizers 28a and 28b stored in each cell 24 of the partition member 22 of the deodorizing member 20 and each of the partition members 22 of the deodorizing member 20 In addition to the size and shape of the cell 24, the shape and size of the opening of the ventilation member 26, the thickness and type of the filter medium 11, and the number of bendings can be changed. The deodorizing filter 10 can easily improve the deodorizing performance without sacrificing pressure loss.

[0072] As described above, since the deodorizing filter 10 can be easily adjusted and changed in performance, and has a simple configuration, a filter according to the required performance can be easily manufactured. Therefore, it is possible to respond to various performance requirements quickly and at low cost. Deodorizing fill The filter 10 is particularly suitable for an automotive interior filter that filters and deodorizes air supplied to the interior of an automobile, and an air filter for building air conditioning equipment. However, deodorizing filter

10 can be used for various applications without being limited thereto.

[0073] Next, a method for antibacterial treatment of the deodorizing filter 10 will be described.

[0074] The deodorizing filter 10 exhibits a deodorizing effect efficiently by the configuration in which the deodorizing member 20 in which the deodorizing agents 28a and 28b are sandwiched between the ventilation members 26 and the filter medium 11 are overlapped. The deodorizing agent 28a, 28b exhibits a deodorizing effect by using a material that adsorbs an odor component. There are inorganic adsorbents and organic adsorbents as adsorbing materials, but when the deodorizing filter 10 is subjected to antibacterial treatment, inorganic adsorbents are suitable for the adsorbents 28a and 28b. Inorganic adsorbents include zeolite, silica, alumina, activated carbon, metal, etc., but when deodorizing filter 10 is antibacterial treated, suitable adsorbents are zeolite and activated carbon, and more suitable adsorbents are zeolite. It is.

[0075] In the present invention, when an antibacterial treatment is performed on the deodorizing filter 10, the zeolite having a cation exchange ability is treated with a cationic antibacterial agent, whereby the zeolite and the cationic antibacterial agent are strongly bonded. The complex was formed, and it was found that the antibacterial agent was not easily eluted by moisture alone, and the present invention was achieved.

[0076] The deodorizing filter 10 in which the deodorizing member 20 having the deodorizing agents 28a and 28b sandwiched by the ventilation member 26 and the filter medium 11 are bonded together is combined with (I) a guanidine-based antibacterial agent, and (ii) a quaternary ammonium salt system. Choose from antibacterial agents, (ii) amino acid antibacterial agents, (IV) pyridine antibacterial agents, (V) quinoline antibacterial agents, (VI) atalidine antibacterial agents, and (VII) organic nitrogen-containing heterocyclic antibacterial agents. The antibacterial deodorizing filter product obtained by treating with at least one of the above is described in detail below.

[0077] As the ventilation member 26, a non-woven fabric made from a fiber material such as polyester, polypropylene, polyethylene or the like can be used. The ventilation member 26 can be used as the deodorizing member 20 by sandwiching the deodorizing agents 28a and 28b. As the deodorizers 28a and 28b, zeolite or activated carbon is preferably used. These deodorizers 28a and 28b may be used alone or in combination. Further, the nonwoven fabric may be antibacterial processed with the antibacterial agents (I) to (VII) before being processed as the deodorizing member 20, or the nonwoven fabric and the deodorizing agent are integrated into a deodorizing member. You can process the fungus. In the case of antibacterial processing with the antibacterial agents (I) to (VII) before processing the nonwoven fabric as a deodorizing member, it can be carried out by a general fiber antibacterial processing method.

[0078] That is, by continuously passing the nonwoven fabric through the aqueous solution of the antibacterial agent, squeezing at a constant pressure, drying at around 100 ° C, and further heat-treating at 100 ° C or higher as necessary. An antibacterial nonwoven fabric is obtained. Alternatively, an antibacterial nonwoven fabric can be obtained by spraying the aqueous solution uniformly on the nonwoven fabric, drying it at around 100 ° C, and further heat-treating it at 100 ° C or higher as necessary.

[0079] In the nonwoven fabric after drying, the antibacterial agent is preferably contained in an amount of 0.001 to 20 mass% of the total mass of the nonwoven fabric. If the antibacterial agent contained in the nonwoven fabric is 0.001% by mass or more of the total mass of the nonwoven fabric, the nonwoven fabric can exhibit antibacterial properties. If the antibacterial agent contained in the non-woven fabric is 20% by mass or less of the total mass of the non-woven fabric, the antibacterial agent is retained in the state of permeation into the non-woven fabric and does not peel from the non-woven fabric.

[0080] Further, the antibacterial agent may be treated on zeolite or activated carbon used as a deodorizing agent.

As a treatment method in this case, the zeolite or activated carbon is immersed in an aqueous solution of an antibacterial agent and then dehydrated and dried, or sprayed and then dried. When using a mixture of zeolite and activated carbon, either zeolite or activated carbon may be antibacterial or both may be antibacterial, but it is more efficient to apply antibacterial treatment to the zeolite. .

[0081] Further, after the nonwoven fabric and the deodorizing agent are integrated into the deodorizing member 20, antibacterial processing may be performed.

In this case, the antibacterial agent treatment method may be either immersion treatment or spray treatment, but an antibacterial aqueous solution spray treatment is more preferred, and the spray treatment is followed by drying. When spraying, either single-sided processing or double-sided processing is acceptable, but single-sided processing is more efficient.

[0082] The antibacterial treatment method of the deodorizing member 20 is superior in several respects to processing the vent member 26 and the deodorizers 28a and 28b in the cell 24 separately after the antibacterial treatment and then processing the deodorizing member 20. ing. The first excellent point is that when the deodorizing member 20 is antibacterial processed, the ventilation member 26 and the deodorized simultaneous lj28a and 28b in the senore 24 are antibacterial processed by a single treatment. The second excellent point is that the antibacterial solution just passes through the ventilation member 26 and is in contact with the ventilation member 26 just by being adsorbed to the ventilation member 26 by spray treatment. Antibacterial water up to 28b Since the solution can permeate and be adsorbed, the amount of liquid adsorbed on the deodorizers 28a and 28b can be adjusted by adjusting the amount of spray sprayed. Can improve antibacterial properties without elution. That is, by creating a layer of antibacterial agent by adsorbing the deodorizer 28a, 28b to the deodorizer, the microorganisms in the gas passing therethrough can be filtered and sterilized. In particular, when zeolite is used as a deodorizing agent, a durable antibacterial effect can be obtained without elution of the antibacterial agent by moisture. In this case, if the thickness of the filled zeolite is used, an antibacterial agent is soaked from one side or both sides and fixed by ionic bonding, and a zeolite layer to which the antibacterial agent does not adhere is formed in the center. Deodorizing action can be maintained.

[0083] Furthermore, if the filter medium 11 constituting the antibacterial deodorizing filter is subjected to antibacterial processing, the antibacterial function of the antibacterial deodorizing filter can be further improved. The method for imparting antibacterial properties to the filter medium 11 can be performed in the same manner as for the ventilation member 26. In other words, an antibacterial agent is used as an aqueous solution, and the filter medium 11 is continuously passed through the solution, then squeezed at a constant pressure, dried at around 100 ° C, and further subjected to heat treatment at 100 ° C or higher as necessary. By doing so, an antibacterial filter medium 11 is obtained. Alternatively, the antibacterial filter medium 11 can be obtained by spraying the filter medium 11 with an aqueous solution of the antibacterial agent uniformly, drying at around 100 ° C, and further heat-treating at 100 ° C or higher as necessary.

[0084] In the filter medium 11 after drying, the antibacterial agent is preferably contained at 0.00 :! to 20% by mass of the total mass of the filter medium 11. If the antibacterial agent contained in the filter medium 11 is 0.001% by mass or more of the total mass of the filter medium 11, the filter medium 11 can exhibit antibacterial properties. If the antibacterial agent contained in the filter medium 11 is 20% by mass or less of the total mass of the filter medium 11, the antibacterial agent is held in a state of penetrating the filter medium 11, and does not peel from the nonwoven fabric. In addition, pressure loss does not occur due to clogging of the filter medium 11 by the antibacterial agent.

[0085] Examples of the antibacterial agent for imparting antibacterial properties include the antibacterial agents described above. That is,

(I) Examples of guanidine antibacterial agents include chlorhexidine salts, and typical examples thereof include chlorhexidine gnoleconate, chlorhexidine hydrochloride, and polyhexamethylene biguanide salts.

(II) Quaternary ammonium salt antibacterial agents such as benzalkonium chloride and Nitskanon RB Hana Chemical Co., Ltd.).

(III) Tego 51 (manufactured by Goldschmidt) is mentioned as an amino acid antibacterial agent.

(IV) An example of a pyridine antibacterial agent is pyridinium hydrochloride.

(V) As an example of a quinoline-based antibacterial agent, 8_hydroxy quinoline may be mentioned.

(VI) An example of an atalidine antibacterial agent is atalidine.

(VII) Thiabendazole is mentioned as an organic nitrogen-containing heterocyclic antibacterial agent.

These antibacterial agents can be used in an aqueous solution. A solvent can be added, and a surfactant can be added and used in a dispersed state. In addition, these antibacterial agents can be used alone, but several types can also be used in combination. The most suitable antibacterial agent in the present invention is Nitskanon RB.

Hereinafter, the present invention will be described in detail with reference to examples, but the present invention is not limited to these examples.

[0088] First, samples a and b of the deodorizing filter 10 were produced as follows.

[0089] Each cell 24 of the partition member 22 formed in a honeycomb shape using a polypropylene sheet contains zeolite, covered with a breathable member 26 using a nonwoven fabric, and a deodorizing member having a ventilation surface of about 220 mm X about 110 mm 20 (this is designated as sample a). Each senore 24 of the partition member 22 has a substantially hexagonal cross section.

[0090] A filter medium in which a polypropylene non-woven fabric is folded in a pleat shape by alternately repeating mountain folds and valley folds.

11 (this is referred to as sample b).

[0091] The deodorizing member 20 and the filter medium 11 were overlapped, and the side wall members 16 and 18 were bonded and integrated on the side surfaces to produce a deodorizing filter 10 having a thickness of about 30 mm.

[0092] With respect to the deodorizing filter 10 produced in this way, pressure loss and deodorizing performance evaluation tests were performed in the cases where the antibacterial treatment of Examples 1 and 2 described later was performed and when the antibacterial treatment was performed. There was no substantial difference in pressure loss due to the presence or absence of antibacterial treatment. The deodorization performance was measured by removing the tobacco odor components of ammonia, acetoaldehyde, and acetic acid. Although there was a difference in the deodorization performance depending on the presence or absence of antibacterial treatment, in all cases sufficient deodorization performance was obtained in practice.

[0093] Samples a and b were subjected to antibacterial treatment and evaluated as in Examples 1 and 2 described later. . There are methods for measuring the number of bacteria as a method for evaluating non-eluting antibacterial agents, but it is necessary to change the test method in order to evaluate the antibacterial effect of powders and granules. Therefore, antibacterial evaluation was performed by the following method.

(Example 1) The surface of the deodorizing member 20 of the sample a was sprayed with a 4% aqueous solution of the antibacterial agent Nitsukanon RB per 10 cm ² to infiltrate the liquid from the surface of the member to the inside. It was dried for a while to obtain an antibacterial deodorizing member. At this time, the content of the antibacterial agent with respect to the deodorizing member 20 was 0.2% by mass.

[0095] It was confirmed by the following method that Nitskanon RB was adsorbed by the zeolite inside the deodorizing member 20. This member was immersed in a solution of BPB indicator for 10 minutes, and then thoroughly washed in running water to remove excess BPB indicator and dried. When Nitskanon RB is adsorbed, it turns blue. In this embodiment, the ventilation member 26 is colored blue. Furthermore, when the ventilation member 26 of the antibacterial deodorizing member was peeled off and the inside zeolite was confirmed, it was colored blue.

[0096] In order to confirm the adsorption durability effect, the antibacterial deodorizing member was immersed in running water for 1 hour and then dried. This was immersed in a solution of BPB indicator for 10 minutes, and then thoroughly washed in running water to remove excess BPB indicator and dried. When the ventilation member 26 was peeled off and the zeolite was confirmed, it was colored blue and it was confirmed that Nitskanon RB was adsorbed without flowing out.

[0097] Using this antibacterial deodorizing member, an antibacterial evaluation test was conducted in accordance with the bacterial liquid absorption method of the quantitative test of JIS L1902, "Antibacterial test method for textile products / antibacterial effect". However, the contact time between the bacterial solution and the sample was 10 minutes. As test bacteria, Staphylococcus aureus ATCC 6538P and Klebsiella pneumouniae ATCC 4352 were used. As a result of the antibacterial evaluation test, the numbers of Staphylococcus aureus and Klebsiella pneumoniae decreased to 0 by contact with the antibacterial deodorizing member.

(Example 2) [0098] The surface of the filter medium 11 of the sample b was sprayed with a 2% aqueous solution of the antibacterial agent Nitsukanon RB per 10 cm ² to infiltrate the liquid up to the inside of the filter medium 11, and then 10 ° C at 105 ° C. After drying for a minute, an antibacterial processed filter medium was obtained. At this time, the content of the antibacterial agent with respect to the filter medium 11 was 0.15% by mass. [0099] Using this antibacterial processed filter medium, an antibacterial evaluation test was conducted in the same manner as in Example 1 in accordance with the microbial liquid absorption method of the quantitative test of JIS L1902 "Antibacterial test method for textile products' antibacterial effect". . However, the contact time between the bacterial solution and the sample was 10 minutes. As test bacteria, Staphylococcus aureus and Neisseria pneumoniae were used. As a result of the antibacterial evaluation test, the number of Staphylococcus aureus and Klebsiella pneumoniae was zero when contacted with the antibacterial processed filter medium.

[0100] (Comparative Example 1) The antibacterial raw deodorizing member of sample a was immersed in a solution of BPB indicator for 10 minutes, and then thoroughly washed in running water to remove excess BPB indicator and dried. In this comparative example, the ventilation member was not colored blue. Further, when the ventilation member of the deodorizing member was peeled off and the inside zeolite was confirmed, it was not colored blue.

[0101] The antibacterial evaluation test was performed in the same manner as in Example 1. As a result of the antibacterial evaluation test, the numbers of Staphylococcus aureus and Klebsiella pneumoniae were almost the same as the number of inoculated bacteria due to contact with the antibacterial raw deodorizing member.

[0102] (Comparative Example 2) The raw filter medium of Sample b was immersed in a solution of BPB indicator for 10 minutes, and then thoroughly washed in running water to remove excess BPB indicator and dried. In this comparative example, the filter medium was not colored blue.

[0103] The antibacterial evaluation test was carried out in the same manner as in Example 1. As a result of the antibacterial evaluation test, the number of S. aureus and Klebsiella pneumoniae was almost the same as the number of inoculated bacteria due to contact with the antibacterial raw filter medium.

[0104] As described above, the antibacterial deodorizing filter product obtained by performing the antibacterial treatment on the deodorizing filter 10 is excellent in antibacterial properties against various bacteria and can suppress elution of components exhibiting the antibacterial properties to a low level. .

It should be noted that the present invention can be implemented with various modifications that are not limited to the embodiments described above.

Claims

The scope of the claims

[1] a filtration unit for filtering air passing between main surfaces;

A deodorizing part for deodorizing the air passing between the main surfaces;

In a state where the main surfaces of the filtration unit and the deodorization unit are opposed to each other, the filtration unit and the pair of side surfaces of the deodorization unit are fixed to each other, and the filtration unit and the deodorization unit are combined. And a pair of side wall members,

The deodorizing part is

A partition member having a plurality of cells penetrating in the direction between the main surfaces of the deodorization unit, and one or more granular deodorizers respectively housed in the cells of the partition member;

A deodorizing filter comprising: a ventilation member facing the opening of each cell, having an opening smaller than the deodorizing agent, and covering at least the main surface of the deodorizing part.

[2] The filtration unit includes a filter medium folded in a pleat shape,

2. The deodorizing filter according to claim 1, wherein the side wall member is fixed to side surfaces of both ends of the folding line of the filter medium.

[3] The filter piece is characterized in that the bent pieces at both ends of the filter medium extend in a direction substantially perpendicular to the fold line, and the extended portion covers an end surface of the deodorizing part. Deodorizing filter described in.

[4] The deodorizing filter according to claim 1, 2 or 3, wherein the partition member is shaped like a double cam and can be generally deformed in a direction between the pair of side wall members.

[5] (I) Guanidine antibacterial agent, (Π) Quaternary ammonium salt antibacterial agent, (III) Amino acid antibacterial agent, (IV) Pyridine antibacterial agent, (V) Quinoline antibacterial agent, (VI) The deodorization according to any one of claims 1 to 4, wherein the deodorization treatment is performed with at least one selected from the group consisting of an atalidine antibacterial agent and (VII) a heterocyclic antibacterial agent containing organic nitrogen. filter.

[6] The method according to claim 5, wherein the antibacterial agent (I) to (VII) contains at least one selected from 0.001 to 20% by mass of the total mass of the ventilation member. Deodorizing filter as described

[7] The filtration unit includes a filter medium folded in a pleat shape, At least one selected from the antibacterial agents (I) to (VII) is added to 0% of the total mass of the filter medium.

The deodorizing filter according to claim 5, wherein the deodorizing filter is contained in an amount of 001 to 20% by mass.

[8] The deodorizer includes zeolite,

The complex is formed by treating the zeolite with at least one cationic antibacterial agent selected from the antibacterial agents (I) to (VII). Deodorizing filter according to.

[9] The method according to any one of [5] to [8], wherein after the deodorizing member is formed, the deodorizing member is treated with at least one selected from the antibacterial agents (I) to (VII). The deodorizing filter as described in any one.

[10] A deodorizing member comprising a ventilation member, a deodorizing member including the deodorizing agent sandwiched between the ventilation member, and a filter medium, the deodorizing filter comprising:

(I) Guanidine antibacterial agent, (Π) Quaternary ammonium salt antibacterial agent, (III) Amino acid antibacterial agent, (IV) Pyridine antibacterial agent, (V) Quinoline antibacterial agent, (VI) Atalidine antibacterial agent An antibacterial deodorizing filter product treated with at least one selected from the group consisting of: (VII) a heterocyclic antibacterial agent containing organic nitrogen sulfur.

[11] The deodorizing filter includes a pair of side wall members that respectively fix the pair of side surfaces of the filter medium and the pair of side surfaces of the deodorizing member,

The deodorizing member includes a partition member having a plurality of cells,

11. The antibacterial deodorization filter product according to claim 10, wherein one or more granular deodorizers are stored in each cell of the partition member.

[12] The filter medium is folded into a pleat shape,

12. The antibacterial deodorizing filter product according to claim 10 or 11, wherein the side wall member is fixed to both side surfaces of the folding line of the filter medium.

[13] The folded pieces at both ends of the filter medium are extended in a direction substantially perpendicular to the folding line.

The antibacterial deodorizing filter product according to claim 12, wherein the extended portion covers an end surface of the deodorizing member.

[14] The antibacterial deodorization according to any one of [10] to [13], wherein the partition member is shaped like a double cam, and is generally deformable in a direction between the pair of side wall members. F Filter products.

[15] The antibacterial agent (I) to (VII) at least one selected from 0.00 :! to 20% by mass of the total mass of the ventilation member, The antibacterial deodorizing filter product according to any one of 10 to 14.

[16] At least one selected from the antibacterial agents (I) to (VII) is added to 0% of the total mass of the filter medium.

The antibacterial deodorizing filter product according to any one of claims 10 to 14, characterized by containing 001 to 20% by mass.

[17] The deodorizer includes zeolite.

The complex is formed by treating the zeolite with at least one cationic antibacterial agent selected from the antibacterial agents (I) to (VII).

6. The antibacterial deodorizing filter product according to any one of 6.

[18] The method according to any one of claims 10 to 17, wherein after the deodorizing member is formed, the deodorizing member is treated with at least one selected from the antibacterial agents (I) to (VII). The antibacterial deodorizing filter product described in any one of them.