JPS63194663A - Deodorizing member of respiration protector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Application *: The present invention can be used in a work place in a specific environment or when attached to a respiratory protective equipment used for emergency relief activities, etc. This relates to a deodorizing member that eliminates odors.

Background of the invention/prior art: Dust masks for preventing pneumoconiosis in foundries, book powder processing factories, inorganic fiber handling factories, etc., gas masks with canisters for absorbing toxic gases, There are several types of respiratory protective equipment, such as air-supplying masks used by workers in foul-smelling gases by communicating with the outside air, and air respirators that depressurize compressed air in a cylinder and inhale through a facepiece. It is served to.

In the case of dust masks, these respirators are designed to reduce inhalation resistance and smoothly release exhaled air to the outside through the exhaust valve, including consideration to improve efficiency. A structure similar to that of the oak species has been proposed.

Problem to be solved: Conventional respiratory protectors are designed to balance the incoming air and exhaled air to the extent that breathing is possible without hindrance, but exhaled air is slightly higher than atmospheric pressure. High pressure is being released from the exhaust valve to the outside of the protective equipment. For this reason, the ratio of exhaled air in the protective perfect circle that is worn increases rapidly, and the concentration of odors such as bad breath and body odor tends to increase inside the respiratory protector.

Such odors do not easily dissipate even after the respiratory protection equipment is removed and become a unique odor, causing discomfort and a feeling of pressure when workers wear unspecified respiratory protection equipment. ing.

In addition, it is essential that a type of respiratory protection device that is used to deal with odors generated from work areas, that is, oak odor, also has a deodorizing function.

Means for solving the problem; The present invention eliminates the above odors and improves the
rl 1C This was done to make it easier, and it does not increase exhalation resistance or exhalation exhaust pressure. Moreover, fIA is attached to the inner surface of the respirator so that there is no discomfort when wearing it. The purpose of the present invention is to provide a deodorizing member that can be loaded or removed. Specifically, a deodorizing agent that is odorless and does not cause any sensory abnormality when attached to a respiratory protector is impregnated into a carrier/envelope to form a deodorizing member. This deodorizing member is relatively flat and flexible in relation to its surface area, and can be attached to the inside of a respiratory protector using, for example, double-sided pressure-sensitive tape, or it can be loaded into the cavity of a filter as a granule. can be used.

Structure and operation of the invention: The deodorizing member of the present invention uses porous inorganic particles as a carrier, and a deodorizing agent made of one or a combination of two or more of natural plants, natural minerals, or chemically synthesized products is applied to the pores of the carrier. Impregnation/Suction#
After forming the deodorizing particles, the deodorizing particles are combined to produce a deodorizing member in a form that can be handled by hand.

For example, it can be wrapped in a material with fine mesh and excellent air permeability, such as non-lily cloth, and formed into a flat, flexible deodorizing member with a large surface area. When the deodorizing member obtained in this way is attached to a respiratory protection device and separated, it exhibits the function of removing physiological odors of the human body mixed in exhaled breath or extrinsic odors mixed in inhaled air. .

It can also be formed into particles with a particle size that can be loaded into the container. Such a deodorizing member can be loaded into the cavity or interlayer of the filter element of a dust mask in a respiratory protection device, and when used integrally with the filter or stacked on top of each other, it can be used inside the mask. To remove odors from the air inhaled into a room, and to make work hygienic and easy in places with bad working environments where bad odors occur.

Furthermore, depending on the situation of dust generation or floating dust in the work place, these deodorizing members can also share the filter function.

Examples: Porous inorganic particles serving as carriers used in the present invention include blast furnace slag (granulated slag, expanded slag), pottery, earthenware, burnt lime, gypsum, silica gravel, expanded shale, expanded nacre, vermiculite, and shirasu. These include earth, high alumina, chamotte, pumice, and fired Oya stone. These raw materials are crushed and sieved, or composite porous particles made of the above raw materials are
Particle size 0゜1~ζlHI Nail groan 1. A carrier was prepared by adjusting the grain size to the joints of the fins 03 to 3. Particle size is 0. l
If it is less than ILM, the inhalation resistance will be large when used in a mask, and an appropriate amount of deodorant cannot be adsorbed.

Furthermore, when formed into a deodorizing member, it becomes difficult to attach or load it to a respiratory protector.

The deodorizing agent adsorbed onto the carrier as described above can be extracted from natural substances, especially green tea extract components such as green tea flavonoids such as [F], sulfates such as dJ1 iron sulfate, ascorbic acid, or mixtures thereof. These include chemically synthesized products and activated carbon.

In these deodorants, green tea flavonoids have an excellent deodorizing effect on ammonia, amines, hydrogen sulfide, and nicotine; chemically synthesized products have a poor deodorizing effect on ammonia, and activated carbon has a mercapta/sulfide deodorizing effect. It is famous for its excellent deodorizing effect against hydrogen. Green tea flavonoids are preferred as deodorants for use in respiratory protection equipment, since they often deal with complex odors of metabolic odors, and from the viewpoint of wide compatibility.

In order to adsorb such a deodorant into the fine pores of porous inorganic particles, the deodorant can be made into a bath solution using water or other solvents, or the deodorant can be finely ground and suspended in a suitable liquid. As a liquid,
Porous inorganic particles are immersed in these six deodorant liquids or deodorant suspensions, impregnated into the pores and absorbed into the skin, and then dried.When it is necessary to increase the adsorption amount of the deodorant. In addition to repeating the above operations, the amount of impregnation and adsorption can be increased by applying damaging motion with a vibrator during the immersion time of the porous inorganic particles, or by heating and immersing the particles. can.

Next, to give a specific example, composite particles mainly composed of high-purity alumina with an AhOa of 951 or higher are sieved to obtain 0.1
~5n particle size distribution, 0.8~8ff range is 8c+v
It was adjusted to account for t%. The porous inorganic particles obtained in this way are 5i01, MgOlAg5Ua
The porous inorganic particles were immersed in the deodorant core solution by diluting the green tea flavonoid stock solution 60 times for 20 minutes. After taking it out, it was placed in a drying chamber and air-dried with hot air at 80"C for 8 hours to obtain deodorizing particles. On the other hand, a container made from a molded container with poor ventilation (in this example, it was made from iron cloth) 1) Prepare a bag, put 6Of of the above deodorizing particles into it, and close it to obtain the deodorizing member of the present invention.

This deodorizing member can have a large surface area in a flat state by making the volume of the stored deodorant particles smaller than the volume inside the bag. Therefore, it can be easily attached to the inner surface of a facepiece of an air-supplying mask, an air respirator, etc., using, for example, a double-sided pressure-sensitive adhesive tape.

Further, a desired particle diameter portion of the deodorizing particles is selected, or a fine particle portion is granulated to a desired diameter using a means that does not involve additional pressure, such as a rotary granulator, to form a deodorizing member. This form is
When used in a normal dust mask, the deodorizing member of the present invention is conveniently loaded into the gap between filters or the gap between the filter and the filter cover and functions as a deodorizing member. was attached to the inner surface of the mask of an air respirator, especially near the facepiece where the compressed air in the cylinder is blown out after being decompressed. The odor peculiar to the air sent from the cylinder (metal odor or oil odor, etc.) disappears, and the physiological odor in exhaled air also disappears, and the strange odor of the air during use and the discomfort at the beginning of wearing are eliminated. The odor has been eliminated.

When used by loading it into the filter of a T1-1 mask, when working in environments with a lot of dust and odors that are harmful to the human body, the odor from the work place will disappear, and at the same time, the menstrual odor produced by exhaled air will also be eliminated. Ta.

When the deodorizing member of the present invention is attached to various respiratory protection devices, it has the effect of eliminating odors on the inner surface of the mask body or removing odors from passing gas. Furthermore, when the odor eliminating function is lost, it can be replaced very easily, which has great industrial applicability.

Claims (1)

[Claims] 1. A deodorizing agent is impregnated and adsorbed into the fine pores of porous inorganic particles whose particle size has been adjusted to form deodorizing particles, and the deodorizing particles are aggregated to form a form that can be handled by hand. A deodorizing member for a respiratory protector, characterized by: 2. The deodorizing member for a respiratory protector according to claim 1, which is a flat, flexible body with a large surface area, in which deodorizing particles are encapsulated in a material with excellent breathability. 3. The deodorizing member for a respiratory protector according to claim 1, wherein the deodorant particles are granulated to a particle size that can be loaded into the voids of the filter.