JP2003019219A - Hygienic mask and inspired air purifying member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hygienic mask which can efficiently catch harmful substances contained in the atmosphere even when the harmful substances are particles, and is excellent in the purifying function of the inspired air; and an inspired air purifying member which is used for the hygienic mask. SOLUTION: This hygienic mask is constituted of a mask body 2 and the inspired air purifying member 3. In this case, the mask body 2 has a covering fabric section 5 having air-permeability to cover the nose and the mouth, and bands 6 to place around the ears. The inspired air purifying member 3 is detachable from the covering fabric section 5 of the mask body 2. The inspired air purifying member 3 is constituted of an acetate fiber aggregate 8a as the major material for the inspired air purification. The acetate fiber aggregate 8a is formed by arranging numerous acetate fibers in parallel in the direction along the flow of the inspired air.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sanitary mask having an excellent function of collecting fine particles in the atmosphere to purify intake air, and an intake air purification member used therefor.

[0002]

2. Description of the Related Art In recent years, air pollution has progressed due to exhaust gas emitted from automobiles and dust and other chemical substances emitted from factories and the like, causing a large amount of pollutants to be inhaled with breathing. There is. Especially for workers working at toll gates on expressways and other road-related facilities, the continuous exposure to large amounts of exhaust gas emitted from automobiles makes it possible to continuously remove harmful particulates contained in this exhaust gas. Faced with dangerous situations such as inhalation, it is necessary to take some measures for health care. Further, recently, allergic diseases caused by pollen of plants such as cedar have been increasing, and countermeasures against them have become an important issue.

On the other hand, as a method of protecting oneself from dust and pollen in the atmosphere, a sanitary mask has been generally used. This sanitary mask is made of non-woven fabric, gauze cloth, etc., and covers nose and mouth with it to remove harmful substances in the atmosphere by filtration.

However, since the conventional sanitary mask is generally formed by one or a plurality of cloths having a relatively coarse cloth, it has a poor effect of collecting harmful substances, and is particularly contained in exhaust gas of automobiles. It lacked the ability to collect fine particles.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a sanitary mask excellent in the function of purifying intake air, which can efficiently collect harmful substances contained in the atmosphere even with fine particles. It is to provide an intake purification member used for it.

[0006]

In order to solve the above problems, according to the present invention, a main material for inhalation purification is formed so as to be attachable to and detachable from a covering portion that covers the nose and mouth of a hygiene mask. There is provided an intake purification member for a hygiene mask, which is an acetate fiber aggregate in which a large number of acetate fibers are arranged in parallel in a direction along the flow of intake air.

Further, according to the present invention, a mask main body having a breathable cover cloth portion for covering the nose and mouth and a band for hanging on the ear, and the mask main body is detachably attached to the cover cloth portion. An intake air purification member, wherein the intake air purification member uses an acetate fiber aggregate in which a large number of acetate fibers are arranged in parallel in a direction along the flow of intake air as a main material for intake air purification. Hygiene masks are provided.

According to the present invention having the above-mentioned structure, by using the intake air purification member attached to the covering portion of the sanitary mask, harmful fine particles contained in the intake air are collected by the acetate fiber aggregate. It is separated from the intake air. In this case, since the acetate fibers of the acetate fiber aggregate are arranged in the direction along the flow of intake air, the distance and time during which the intake air contacts the acetate fibers are very long, and the intake air is in the meantime. The harmful fine particles inside will surely come into contact with the acetate fibers and be collected. Therefore, even the fine particles that cannot be collected by the known mask can be reliably collected by the acetate fiber aggregate.

According to a preferred embodiment of the present invention, the acetate fiber aggregate is contained in a porous outer skin.

The above acetate fiber aggregate has a diameter of 3 to 7 mm.
It is desirable that the fiber be formed of acetate fiber having a fiber length of, and at least a part of the fiber should include ultrafine fibers having a fiber diameter of 10 μm or less.

A photocatalytic substance that produces a photocatalytic action by irradiation of light may be carried on the intake purification member, whereby the photocatalytic substance is irradiated with sunlight or light from a lighting fixture. The photocatalytic action that occurs can also have a function of decomposing and removing chemical substances and bacteria.

Further, according to the present invention, it has a covering portion for covering the nose and mouth, and a band for hanging on the ear, and the covering portion allows a large number of acetate fibers to follow the flow of inspiration. There is provided a sanitary mask, characterized in that an acetate fiber aggregate arranged in parallel in a direction is used as a main material for purifying intake air.

In the sanitary mask, the covering cloth portion is formed by accommodating the acetate fiber aggregate in a bag-shaped porous outer skin.

Further, the acetate fiber aggregate has 3 to
It is desirable that the fiber is formed of acetate fiber having a fiber length of 7 mm, and at least a part thereof contains ultrafine fiber having a fiber diameter of 10 μm or less.

[0015]

Preferred embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows a first embodiment of the sanitary mask of the present invention.
Is composed of a mask main body 2 and an intake air purification member 3 which is detachable from the mask main body 2.

As is apparent from FIG. 2, the mask body 2 has a breathable cover portion 5 for covering the nose and mouth, and
The cover cloth portion 5 is composed of bands 6 which are continuously provided at both left and right ends of the cover cloth portion 5. The cover cloth portion 5 is formed of a highly breathable flat sheet-like cloth such as non-woven fabric or gauze cloth.

Further, as is apparent from FIGS. 2 and 3, the intake air purification member 3 has a large number of acetate fibers 8 which are introduced into a porous outer skin 7 made of non-woven fabric, gauze cloth or the like which is highly breathable. It accommodates the acetate fiber aggregates 8a arranged side by side in a direction along the flow, that is, in a direction substantially perpendicular to the surface of the covering portion 5, and the acetate fiber aggregates 8a are used for purification of intake air. The main material. If necessary, fixing members 4 for attaching to the covering cloth portion 5 of the mask body 2 can be provided near the left and right ends of the outer surface of the outer cover 7. As the fixing member 4, for example,
Of the pair of meshing members that form the surface fastener, the member in which the tip of the fiber is hook-shaped can be preferably used.

The fiber length and the fiber diameter of the acetate fiber 8 are preferably such that the flow resistance of the intake air can be made as small as possible and the contact length with the intake air can be lengthened to enhance the efficiency of trapping fine particles. For example, the preferable range of the fiber length is about 3 to 7 mm, more preferably about 4 to 5 mm, and the preferable range of the fiber diameter is 3 to 200 μ.
m, more preferably 5 to 50 μm. However, since it is desirable to use fibers having a fiber diameter as small as possible in order to improve the efficiency of collecting fine particles, the acetate fiber aggregate 8a is formed so that at least a part thereof contains ultrafine fibers having a fiber diameter of 10 μm or less. Most preferably.
The acetate fiber 8 may be a crimpable fiber, a non-crimpable fiber, or a mixture thereof.

In the sanitary mask 1 having the above-mentioned structure, the intake air purification member 3 is mounted on the inside or outside of the cover cloth portion 5 of the mask main body 2 in a superposed manner, and in that state, like the known sanitary mask, the cover cloth is provided. The part 5 covers the nose and mouth, and the band 6 is worn over the ear. As a result, harmful particulates in the inhalation that pass through the acetate fiber aggregate 8a inside the intake purification member 3 during breathing are collected by the acetate fiber aggregate 8a and separated from the inhalation. In this case, since each acetate fiber 8 of the above-mentioned acetate fiber aggregate 8a is arranged in the direction along the flow of the intake air, compared with a known mask in which the covering cloth portion is simply formed of normal cloth. The distance and time during which the intake air comes into contact with the acetate fiber 8 are very long, during which the harmful fine particles in the intake air come into contact with the acetate fiber 8 and are reliably collected. Therefore, even the fine particles that cannot be collected by the known mask can be reliably collected by the acetate fiber aggregate 8a.

Photocatalyst particles such as titanium dioxide can be adhered to the acetate fiber aggregate 8a and the outer cover 7, whereby the photocatalyst particles are irradiated with sunlight or light from a lighting fixture. Due to the photocatalytic action generated by this, it can also have a function of decomposing and removing chemical substances, bacteria and the like.

In the first embodiment described above, the intake purification member 3 is mounted on the surface of the covering portion 5 so as to overlap with it.
As in the sanitary mask 1A of the second embodiment shown in FIG. 1, the cover portion 5 of the mask body 2 has a double structure to form the pocket 9.
The intake air purification member 3 can be housed in the pocket 9. The configuration and operation of the second embodiment other than those described above, or modifications thereof are substantially the same as those of the first embodiment.

FIG. 5 shows a third embodiment of the present invention.
The sanitary mask 10 of the third embodiment is different from the sanitary masks 1 and 1A of the first and second embodiments described above in that the acetate fiber aggregate 8a is directly incorporated in the covering portion 15 for covering the nose and mouth. That is the point. That is, the sanitary mask 10 has the covering cloth portion 15 and the band 16 for hanging on the ear, and the covering cloth portion 15 is made of a non-woven fabric or a gauze cloth as shown in FIG. It has a bag-like outer skin 17 made of a porous material having excellent properties, and the acetate fiber aggregate 8a is directly accommodated in the outer skin.
The configuration and operation of the third embodiment other than those described above, the modification thereof, and the like are substantially the same as those of the first and second embodiments.

[0023]

As described above, according to the present invention, a sanitary mask excellent in the function of purifying intake air, which is capable of efficiently collecting harmful substances contained in the atmosphere even in the form of fine particles, and a use thereof It is possible to obtain the intake air purification member.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a sanitary mask according to the present invention.

FIG. 2 is a perspective view showing a state in which an intake purification member of the sanitary mask of FIG. 1 is separated.

FIG. 3 is a sectional view of an intake purification member.

FIG. 4 is a perspective view showing a second embodiment of the sanitary mask according to the present invention.

FIG. 5 is a perspective view showing a third embodiment of the sanitary mask according to the present invention.

6 is a cross-sectional view of FIG.

[Explanation of symbols]

1,1A, 10 Sanitary mask 2 mask body 3 Air intake purification member 5,15 Covering part 6,16 band 7,17 outer skin 8 Acetate fiber 8a Acetate fiber assembly

Claims (11)

[Claims] 1. A main material for cleaning intake air, which is detachably formed on a covering portion covering a nose and a mouth of a sanitary mask,
An intake purification member for a hygiene mask, which is an acetate fiber aggregate in which a large number of acetate fibers are arranged in parallel in a direction along the flow of intake air. 2. The acetate fiber aggregate is housed in a breathable porous outer skin.
The intake purification member described in. 3. The acetate fiber aggregate is 3 to 7 m
Made of acetate fiber with a fiber length of m,
The intake purification member according to claim 1 or 2, characterized in that at least a part thereof includes ultrafine fibers having a fiber diameter of 10 µm or less. 4. The intake purification member according to claim 1, further comprising a photocatalytic substance that carries out a photocatalytic action upon irradiation with light. 5. A mask main body having a breathable covering portion for covering the nose and mouth and a band for hanging on the ear, and an intake purifying member detachable from the covering portion of the mask main body. The sanitary mask is characterized in that the intake purification member uses as a main material for intake purification an acetate fiber aggregate in which a large number of acetate fibers are arranged in parallel in a direction along the flow of intake air. 6. The sanitary mask according to claim 5, wherein the intake purification member is formed by accommodating the acetate fiber aggregate in a porous outer skin. 7. The acetate fiber aggregate is 3 to 7 m
Made of acetate fiber with a fiber length of m,
The sanitary mask according to claim 5 or 6, wherein at least a part thereof contains ultrafine fibers having a fiber diameter of 10 µm or less. 8. A cover cloth portion for covering the nose and mouth and a band for hanging on the ear, wherein the cover cloth portion has a large number of acetate fibers arranged in parallel in a direction along an inspiratory flow. A hygiene mask characterized by using the above-mentioned acetate fiber aggregate as a main material for purifying intake air. 9. The hygiene mask according to claim 8, wherein the covering portion is formed by accommodating the acetate fiber aggregate in a bag-shaped porous outer skin. 10. The acetate fiber aggregate is 3 to 7
The hygiene mask according to claim 8 or 9, wherein the hygiene mask is formed of an acetate fiber having a fiber length of mm, and at least a part thereof contains ultrafine fibers having a fiber diameter of 10 µm or less. 11. The intake air purification member according to claim 5, wherein a photocatalytic substance that produces a photocatalytic action by light irradiation is carried.