JPS62140614A - Deodorizing and dust-collecting filter for cleaning air - Google Patents

Abstract

PURPOSE:To obtain the titled deodorizing and dust-collecting filter for cleaning air capable of maintaining the deodorizing effect of the filter for a long time by forming the fibers contg. a deodorant and activated carbon fibers into woven fabric, nonwoven fabric, and a sheet. CONSTITUTION:For example, chemical fibers, natural fibers, pulp, etc., are impregnated with the deodorant applied with chemical neutralization and the oxidation and reduction by metal activity such as a ferrous sulfate-iron-ascorbic acid deodorant. The fibers are mixed with activated carbon fibers, and woven fabric, nonwoven fabric, and a sheet are formed from the mixed fibers. The sheet 13, for example, is laminated with electrostatic filters 11 and 12 to form the deodorizing and dust-collecting filter for cleaning air wherein the deodorizing effect can be maintained for a long time. After 500hr' operation, the adsorptivity >=2 times that of the conventional filter still remains, and the filter can be widely used.

Description

[Detailed description of the invention] Industrial applications The present invention relates to an air cleaning filter.

Conventional technology Conventional air purifying filters mainly consist of #II combination of two layers: a layer of non-woven activated carbon fiber and a non-woven layer of chemical fiber such as polypropylene. Remove dust and remove smoke and odor with activated carbon↓
゛1 Adsorbs gamma particle-like dust. A wire mesh is used as the first layer of filter to enhance the dust collection effect.

Nets, non-woven fabrics and open cell plastic foams may be used.

Figure 2 shows a conventional filter. 1 is the first layer filter, which is composed of wire mesh and open-cell plastic foam. 2 is a second layer filter, which is made of polypropylene nonwoven fabric. 3 is the third layer filter, which is made of a nonwoven fabric of activated carbon fibers. As a dust collection and deodorizing effect, relatively large volumes of dust and dirt are collected by the first and second layer filters, and smoke, odor, etc.
The particles are adsorbed using activated carbon.

Problems to be Solved by the Invention According to the above-mentioned conventional configuration, the dust and dirt that adhered to the 1.2-layer filter can be reused by cleaning it with a suction nozzle such as a vacuum cleaner. Fine particles that have been absorbed into the environment cannot be easily removed.

Moreover, problems remain in terms of ease of maintenance, since fine particles such as adsorbed odors are released by the heat and emit bad odors. In addition, many purifiers have disposable 2.3-layer filters, and there is a demand for inexpensive particulate adsorption filters that can be used for as long as possible.

The present invention solves the problem No. 142, and aims to provide a deodorizing dust collection filter for air purification that can improve dust collection and deodorization effects with a small amount of filter material.

Means for Solving the Problems In order to solve the above problems, the present invention includes a deodorizing agent that utilizes chemical neutralization and redox using metal activation. The filter is made of at least one of chemical fibers, natural fibers, and pulp and activated carbon fibers in the form of woven fabrics, nonwoven fabrics, or paper sheets.

Effect 1/411 structure b'9 allows the filter to maintain its deodorizing (gas adsorption) effect for a long time.

EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings. In FIG. 1, 11 is the first layer filter;
2.13 are the second and third layer filters, respectively. Table 1 shows the specifications of filters 11, 12, and 13.

The paper is impregnated with corbic acid deodorizer and mixed with activated carbon after disintegration.

(2) Dust and dust passing through the gap between the first and second layer filters are charged by high voltage electricity, and the materials of the first and second layers are the same as those of conventional products.

Next, we will install an air purifier with one type of conventional three-layer filter and one type of three-layer filter according to this example in a general household.
After operating for a total of 500 hours in a 5rn' chamber, the third layer filter was taken out and its remaining absorption capacity was destroyed using ammonia gas (gas concentration: 600 ppm). The results are shown in FIG. In FIG. 3, (, ]) is a curve showing the residual absorption capacity of the filter of this example, (b)
is a curve showing the residual absorption capacity of the conventional filter, and as is clear from Fig. 3, the filter of this example has a residual adsorption rate that is more than twice that of the conventional filter. Moreover, its gas adsorption effect lasts for a long time. Therefore, it can be applied to a wide range of applications as a high-performance filter for various types of air purification, such as filters for coolers, household air purifiers, indoor air purifying filters for automobiles, etc.
- Fan-type filters for deodorizing waste, etc.

Effects of the Invention As described above, according to the present invention, the filter is made of at least one of chemical fibers, natural fibers, and pulp impregnated with a deodorizing agent that applies chemical neutralization and redox through metal activation. By using a woven fabric, a non-woven fabric, or a papermaking sheet made from activated carbon fibers, the deodorizing (gas adsorption) effect of the filter can be maintained for a long time.

[Brief explanation of drawings]

Figure 1 is an overall configuration diagram showing an embodiment of the present invention, Figure 2 is an overall configuration diagram of a conventional filter, and Figure 3 is a comparison diagram of the residual absorption capacity of a conventional filter and a filter according to an embodiment of the present invention. be. 11...First layer filter, 12...Second layer filter, 13...Third layer filter, (a)...
・Curve showing the residual absorption capacity of the filter of one embodiment of the present invention, (b)...Curve representative of the residual absorption capacity of the conventional filter Yoshihiro Morimoto Figure 1/3--1 3MB file Le! - Figure 2 Figure 3 20 # Jθ 30 hours (direction)

Claims (1)

[Claims] 1. Woven fabric, non-woven fabric, or paper sheet made from at least one type of chemical fiber, natural fiber, or pulp and activated carbon fiber containing a deodorizing agent that applies chemical neutralization and oxidation-reduction through metal activation. A deodorizing dust collection filter for air purification.