JPH0338212A - Air filter - Google Patents

Abstract

PURPOSE:To manufacture an air filter for cleaning inside a room or a car by adhering a deodorizer or an anti-fungal agent to a sheet material constituted of a breathing material. CONSTITUTION:An air filter made of a sheet material constituted of a breathing material to which a deodorizer or an anti-fungal agent is adhered is manufactured. As for a solid adsorbent as the deodorizer, alumina group, aluminosilicate group or silica group adsorbent such as active carbon and seolite, zinc silicate, sepiolite, Crystpearl(R) or the like as well as anion exchange resin, amphoteric ion exchange resin or the like can be used. As for the anti-fungal agent, amino acid metallic salt 2,4,4-trichloro-2-hydroxydiphenyl ether, or Vinylzene(R) or the like is used. Said deodorizer or anti-fungal agent is used individually or by mixing together and used by the process of immersing, spraying or the like to a sheet material (synthetic fiber or vegetable fiber such as loofah).

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to air filters.

[Prior Art] Conventionally, air filters for air conditioning used in automobiles, homes, etc. are intended to remove dust, or to deodorize in addition to dust removal.

[Problem to be solved by the invention] In recent years, it has become desirable to keep the interior of a car or a car clean.
Therefore, in addition to dust removal and deodorization, sterilization is required. Therefore, the present invention provides a filter for this purpose.

[:Means for solving JR problems] In order to solve the above problems, the following configuration is adopted.

That is, the air filter is made by adhering the llG1 odor agent and antibacterial agent to a sheet material made of a breathable material.

The sheet material is made by processing synthetic WAN or vegetable fibers such as loofah or palm tlrH into a sheet shape.

In addition, the solid adsorbents used as the 1151 odorant include activated carbon, zeolite, zinc silicate, Seviolite, Crisbar, silica gel, kaolin, and other alumina-based, aluminosilicate-based, and silica-based adsorbents, as well as cation exchange resins,
There are anion exchange resins, amphoteric ion exchange resins, etc.

Preferred solid adsorbents include MO, Zn, Aj), Si
There are solid bases and solid acids containing phosphates of various metals as main components.

The main components are Mq, Zn, AI, Si, etc. [i', 1
The body base is MaO-Al O-nH2O.

3 ZnO-At, O-nH2O, etc.

3. Examples of fixed acids include Al2O3.9Si02''n20.2Mgo.6SiO2.0201.

Also, depending on the conditions, AIO
-nH2O.

3 z, 5Mao-A　I　O-nH2O.

3 A I (OH) -NaHCO3
, 2MqO-6SiOaj 1 mouth, O1 2 AI O-Na 0.2CO-0 mouth, 023 2
3 etc.

Among the phosphorus m-salts whose main components are phosphorus m-salts of various scale metals, there are acid forms such as BPO, Z'(HPO4)2, and Zr.
(ToIPO), AIPO4, OCP, H
344 P1 There are three base types: 3PO4 and Na3PO4, and amphoteric types: βTCP, LiNa PO, and Li4 2MePO4.

Among these, the preferred solid phosphate is CaHPO
1Ca (PO> , Ca2P24 3 42 07, Ca4 <PO4> 20.0PC1Ca1゜(P
O4) 6X2 (X=OlowF-CI), Zr(mouth P
O) ・H20ST t (HP 04 ) 22 020, H5 (mouth PO4) 2-H20, Ge (mouth PO)
・Mouth 0. Rb (mouth PO) ・mouth 242
2 4205Mg port PO
, (LiPO) , Rb(P4
3nO), (KPO), (NaPO3). etc. 3n
There is a phosphorus m salt of 3n. In addition, there are inorganic solid l112 odorants whose deodorizing mechanism is not adsorption like activated carbon, but a reaction based on catalytic action.The main ingredients are phosphoric acid compounds and gold a oxide, and these are combined with a carrier (Japanese). Inu i1 Co., Ltd. Product name: KAYAMAX).

Examples of antibacterial agents include amino acid metal salts and 2-4-4 trichloro-2-hydroxydiphenyl ether, and agents for preventing molds that occur on plastics include vinazine, briventol, and thiabendazole.

The compositions of the above deodorizing agent, antibacterial agent, and adhesive for bonding these are as follows. That is, as an lt2 odorant, solid acid and activated carbon may be used in a range of 0 to 100% and activated carbon in a range of 0 to 100%, either alone or as a mixture.
60 parts, 0.01 to 2 parts of antibacterial agent1. Adhesive 10-90
The composition consists of a range of parts.

Then, the deodorizer alone or mixed with an antibacterial agent is soaked or sprayed onto the sheet material, or the deodorizer alone or mixed with an antibacterial agent, or a combination of two or more types of solid acids and activated carbon is applied to the sheet material. It is made by partially printing or spraying the material.

Here, it is preferable that the above-mentioned adhesive has adhesive strength, has good film elongation, and does not crack even when bent. In addition, after processing, it is necessary to have a good finish, wash resistance (a), and oil resistance.

Adhesives that can be used for this purpose include natural rubber latex, SBR latex, 8B latex, NBR latex, NR latex, MBR latex, MB
Examples include latex, chloroprene rubber latex, neoprene latex, butyl rubber latex, polyisoprene latex, vinyl chloride latex, vinylidene chloride latex, acetic acid vinyl latex, and acrylic acid ester latex.

Among these, preferred are acrylic ester latexes, such as single or copolymers of methyl acrylate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, acrylic acid, and acrylamide.

Further, by copolymerizing these with styrene, methyl methacrylate, vinyl acetate, vinyl chloride, etc., appropriate flexibility, adhesive strength, strength, water resistance, etc. can be imparted.

Furthermore, in response to the 8 degrees requirement, we graft polymers and make them three-dimensional by intermolecular and intramolecular cross-linking using reactive polymers to improve wash resistance, solvent resistance, wrinkle resistance, spring elasticity, flexibility, Properties such as enhanced adhesive strength can be imparted.

As the main reactive heptanomers, those having a carboxyl group, those having an amide and imino group, those having an epoxy group, those having a hydroxyl group, etc. are effective.

Reactive acrylate latex with these reactive groups has characteristics such as solvent resistance, washing resistance, elasticity, upper limit of strength, improved heat resistance, and improved adhesion by reaction with base materials such as Il and other materials. can give.

In addition, when divinylbenzene, divinyl sulfone, allyl acrylate, vinyl crotonate, etc. are added to acrylic acid ester and emulsion polymerized, it internally crosslinks and becomes an elastic rubber-like substance that can be used as a nonwoven fabric with spring elastic flexibility and aging resistance. properties, chemical resistance, and solvent resistance.

(A) Next, various samples are prepared and their deodorizing performance is compared.

(Sample 1) (a) Activated carbon (coconut shell type) 25 parts (b) Solid! !
2 (Rasa Kogyo Co., Ltd. molding product name KD211 Main component: zinc silicate) 25 parts (C) Acrylic emulsion (Adhesive with 50% resin content manufactured by Shin Nakamura Chemical Co., Ltd. Product name FX-
34) 100 parts (d) Antibacterial agent <N-stearoyl-glutamine!
12 Silver> 0.5 parts (e) Water 55 parts (f) Ethylene glycol 10 parts or more The components (a) to (f) are thoroughly kneaded.

Then, 100 parts of the kneaded material and 5 parts of a crosslinking agent (product name: MEG, manufactured by Shin-Nakamura Chemical Co., Ltd.) are added and further mixed. A non-woven fabric for an air filter (weighing 10 grams) with a thickness of 0.5 cm and a length and width of 25 cm was dipped in this mixture, and it was squeezed with a rubber roll etc. until the lff1 of the air filter was 59.
Got a gram of stuff.

This filter is heated with hot air at a temperature of 100 to 120℃ for about 20 minutes.
The sample was pre-dried for 3 minutes and then dried with hot air at a temperature of 140-150C for about 3 minutes to obtain a sample weighing 33 grams.

(Sample 2) (a) Solid wI (Rasa Kogyo Co., Ltd. mounting product name KD211)
50 parts (b) Acrylic emulsion (Adhesive with 50% resin content manufactured by Shin Nakamura Kagaku Co., Ltd. vJ) Product name FX-34 > 100 parts (C) Antibacterial agent (thiabendazole <manufactured by Merck & Co., Ltd.>)
0.5 parts (d) Water 50 parts (e) Ethylene glycol 10 parts or more Components (a) to (e) are thoroughly kneaded.

Then, 98 parts of the kneaded material and a crosslinking agent (Shin Nakamura Chemical Co., Ltd.)
Add 5 parts of MEG) and mix further. This mixture is processed in the same manner as Sample 1 to obtain a sample.

(Sample 3) (a) Activated carbon (A7 Cigarette type) 50 parts (1)) Acrylic emulsion (resin content 50% manufactured by Shin Nakamura Chemical Co., Ltd.)
Adhesive product name FX-34) 008IS (C) Antibacterial agent (N-stearoyl-glutamine 1S
lI2 Silver) 0.5 parts (d) Water 60 parts (e) Ethylene glycol 10 parts or more The components (a) to (e) are thoroughly kneaded.

Then, 102 parts of the kneaded material and 5 parts of a crosslinking agent (product name: MEG, manufactured by Shin Nakamura Chemical Co., Ltd.) were added and further mixed. Then, 98 parts of the kneaded material and 5 parts of a crosslinking agent (product name: MEG, manufactured by Shin Nakamura Chemical Co., Ltd.) were added and further mixed. This mixture is processed in the same manner as Sample 1 to obtain a sample.

(Sample 4) (a) 25 parts of solid acid (KO211 (Ul+ Kogyo Co., Ltd.)) (b) Solid deodorizer (Nippon Kapowder Co., Ltd. Product name: KAYAM
AX DR-301) 2-5 parts (C) Acrylic emulsion (Adhesive with 50% resin content manufactured by Shin-Nakamura Chemical Co., Ltd. Trade name FX-34) 25 parts (d) Antibacterial agent (Briventol (West German Bayer AG) )
0.5 parts (e) Water 60 parts (f) Ethylene glycol 10 parts or more Components (a) to (f) are thoroughly kneaded.

Then, 102 parts of the kneaded product and 5 parts of a crosslinking agent (Shin Nakamura Chemical Co., Ltd., MEG) are added and mixed further.98 parts of the kneaded product and a crosslinking agent (Shin Nakamura Chemical Co., Ltd., product name: MEG) are added and mixed.
Add 5 parts of the product (trade name: MEG) and mix further. This mixture is processed in the same manner as Sample 1 to obtain a sample.

A deodorization test was conducted on Samples 1 to 4 obtained above using the apparatus shown in the figure. In the figure, the ventilation flow rate is 11/min, and the ventilation area of the F-filter of the holder is 20cj. Also, a blank sample is one that was conducted without inserting an air filter into the holder. Note that a detection tube was used for the 15 degree measurement.

Deodorizing Results From the above test results, it is recognized that Samples 1 to 4 all have excellent deodorizing effects.

(B) Next, a comparison of antibacterial performance will be described.

Bacterial solutions of various microorganisms were uniformly inoculated onto the surface of an air filter sample piece (5 parts x 50), and the bacteria were 0.6 and 240" at 37°C, and the mold was 0.24 and 480" at 25°C. Measured after storage.

Note that sample 1-1.1-2.1-3.1-4 is the same as sample 1 above.
In , the antibacterial agent was added to 0.2 parts, 0.5 parts, and 1 part, respectively.
0 parts and 2.5 parts. The control in the table was obtained by dispensing the same amount of bacterial solution as that inoculated into each sample into petri dishes and storing it.

As is clear from the above, Staphylococcus aureus, Escherichia coli, and black malt, except for Talatosborium, have all decreased.

[Effects of the Invention] The air filter of the present invention has an antibacterial agent attached to it in addition to a deodorizing agent, so it has a sterilization effect in addition to the dust removal and deodorization by conventional air filters.

[Brief explanation of drawings]

The drawing is a system diagram of the equipment that conducted the deodorization test.

Claims (1)

[Claims] An air filter made by adhering a deodorizer and antibacterial agent to a sheet material made of breathable material.