KR20020027410A - Manufacture of dust/gas mask packed with activated carbon fiber carbon fiber for removal of toxic and harmful gases - Google Patents

Abstract

PURPOSE: Provided is a multi-functional handy mask containing active carboneous fiber for blocking toxins and dust which has improved purification efficiency and can be recycled and environment-friendly used for an elongated time. CONSTITUTION: The mask comprises a multi-functional cartridge and a silicone/synthetic rubber body. The multi-functional cartridge has a surface filter(4) for blocking dust, an active carboneous fiber filter(5), a functional filter. The surface filter for blocking dust is subjected to water repellent and oil repellent treatment and thereby, has effects to block water and oil. This allows the mask to be usable and show excellent dust-blocking effects in a moisture or foggy working place. The active carboneous fiber includes a woven fabric of pure active carboneous fiber/active carboneous fiber, or a woven fabric of metal-added active carboneous fiber/active carboneous fiber and can effectively remove polar odor substances. The functional filter(6) acts as a supplement filter. The silicone synthetic rubber is constructed to fix the face of a user so that the user may have comfort feelings and contaminated air is prevented from flowing in.

Description

Manufacture of dust / gas mask packed with activated carbon fiber carbon fiber for removal of toxic and harmful gases}

The present invention relates to a mask for removing toxic and harmful gases by attaching a multi-functional cartridge containing activated carbon fiber ⑤ to a mask, and can exhibit efficient purification performance by simultaneously having functions of dust, gas and gas masks. have.

In general, the mask adheres the face to the face to create a complete airtight structure between the face and the face of the mask, and passes the mask according to the breathing of the person wearing the mask to purify the toxic and harmful gases to breathe the purified air. To protect.

The conventional mask has a cartridge mounted on the outside and a magnetic plate and an exhaust plate. The conventional mask configured as described above is shown in FIG. 3, and the filter has to be discarded after one use, and the inhalation air resistance is high, affecting the user's breathing. However, the activated carbon fiber ⑤ used in the present invention has a much larger specific surface area than activated carbon, and the developed pores are all made of fine pores, and at the same time, they are all penetrated through the surface, so that the removal efficiency of gaseous pollutants is excellent. It can be said that it is very effective because it can show the same adsorption capacity as activated carbon in a small amount. Since it is 1/10 lighter than activated carbon, the weight will be reduced.

And this mask has a simple structure because it does not need a separate solenoid plate and exhaust valve by directly connecting the multifunctional cartridge ① with activated carbon fiber. In addition, after the life of the cartridge can be recycled, the cartridge can be replaced and used for a long time. In addition, troops and teams performing special operations missions should be used more effectively because of the need to minimize portable materials.

The object of the present invention is the use of activated carbon fibers ⑤ used for adsorption of gas. The activated carbon fiber ⑤ has a fast adsorption rate and a large adsorption capacity due to the fine pore filling theory, thereby reducing the weight.

In order to achieve the object of the present invention, the mask is made of a multifunctional cartridge ①, a silicone / synthetic rubber face portion ②, a silicone / synthetic rubber band ③ as shown in Figure 1, the multi-function cartridge ① from the outside surface filter ④, activated carbon It is produced in order of fiber⑤, functional filter⑥. Performance of a dust mask at this time is the dust collection efficiency: 99%, the intake resistance: 2-3mmH ₂ O, the exhaust resistance: has a 2-3mmH ₂ O, performance as a gas mask is used DMMP performance based materials for military gas mask cleaning column It has more than a few minutes of water removal. In addition, the performance as a flame retardant mask has the ability to remove water or more by CO gas.

The present invention relates to the manufacture of a mask for removing the toxic and harmful gases by mounting a multi-function cartridge ① built-in activated carbon fiber ⑤ in the front surface of the mask. That is, it protects the respiratory organs of people wearing masks from toxic and harmful gases for a short time, and can be used in workplaces where harmful gases such as hydrogen sulfide and chlorine gas generated in general industrial facilities and odor are generated. This mask removes toxic or harmful gases for a short time, such as a gas mask, and can be used for a short time or when hitting dangerous areas in the military. In addition, by directly connecting the multi-function cartridge ① containing the activated carbon fiber ⑤, there is no need for a separate plate and exhaust valve. In addition, the multifunctional cartridge ① can be removed, and the used cartridge can be replaced with a spare cartridge, and the old cartridge can be recycled and reused to become an environmentally friendly mask.

Activated carbon fiber ⑤ has not only a very large specific surface area, but also the developed pores are all made of fine pores, and at the same time, they are all penetrated through the surface and can exhibit the same adsorption capacity as activated carbon in a small amount. As it can be processed into a nonwoven fabric, it may include an activated carbon fiber woven fabric ⑤, and also include activated carbon fiber ⑤ and activated carbon fiber woven fabric ⑤ in which metals are impregnated or surface-treated according to the material to be removed. .

The present invention is to remove the toxic gas, biochemical gas, etc. for a short time by attaching the activated carbon fiber ⑤ to the mask used for military use, civil water use. In other words, instead of the dustproof / toxic cartridge used in the past, the cartridge ① with a small amount of activated carbon fiber⑤ is connected directly to lighten the mask and to attach or surface-treat the activated carbon fiber⑤ according to the material to be removed. It is possible to provide a mask suitable for. It will become a mask that can be used for actual evacuation because it is smaller and lighter than the current national gas mask. In addition, it is expected to greatly increase the effectiveness of military and police special task force operations.

1 is a mask according to the present invention

2 is a partial cross-sectional view of the respiratory mask of the present invention

3 is a conventional gas mask

As shown in FIG. 2, the respirator part is composed of a surface dust filter ④, an activated carbon fiber filter ⑤, a functional filter ⑥, and the surface dust filter ④ is a water / oil repellent filter that blocks water and oil. It is effective, and shows excellent dustproof function even in the workplace where water or fog exists, and the ventilation resistance is almost unchanged. The following is an activated carbon fiber filter⑤, which is a pure activated carbon fiber / activated carbon fiber woven fabric, or a metal impregnated activated carbon fiber / activated carbon fiber woven fabric, which effectively blocks toxic and harmful gases and odors. Next is a functional filter ⑥, which is a reinforcement filter function. Finally, it is a silicone rubber facet, which is a part that adheres directly to the face part. Can also solve skin sensitivity.

The present invention as described above can exhibit an effective purification performance by having a function of dustproof, anti-gas, flame retardant, deodorizing mask at the same time, and can be used for a short time in case of miniaturization. In particular, the weight of portable equipment / materials of military and light special task forces will be increased and the operational efficiency will be increased. In addition, it can be recycled and can be used for a long time, environmentally friendly.

As shown in Table 1, the adsorption capacity of activated carbon fiber to toxic gas is shown by adsorbing 0.59 g of DMMP per gram of DMMP (Dimethyl Methyl Phosphonate), which is a toxic model gas, at the breakthrough point (0.004 mg / l). It can be seen that it is about three times better than 0.18 g of activated carbon.

Table 1. Comparison of DMMP Adsorption at Breakthrough Points of Normal Activated Carbon (ASC) and Activated Carbon Fibers

Figure 1 shows that toxic model gas, DMMP (Dimethyl Methyl Phosphonate), was regenerated three times at 121 ° C, latm, and 30 minutes after adsorption.

Claims (5)

Manufacturing of multifunctional cartridges, masks composed of silicone / synthetic rubber The multifunctional cartridge of claim 1, comprising a surface dust filter, an activated carbon fiber filter, and a functional filter. The process of claim 2 wherein the processable woven and nonwoven forms and renewable activated carbon fibers. The surface treatment / adhesive activated carbon fiber of claim 2. The functional filter according to claim 2, comprising an electrostatic filter and a nonwoven fabric.