JPH0221869A - Deodorizer incorporating use life indicating function - Google Patents

Abstract

PURPOSE:To visually detect the life of deodorization by covering a deodorizer with a coloring retardant so that a coloring agent in the retardant gives a specific color corresponding to the life of deodorization of the deodorant. CONSTITUTION:A deodorizer 1 is composed of a container 2a in which a deodorant 2 is filled, and a transparent resin bag 4 filled therein with a coloring agent 3. The deodorant 2 is a well-known activated carbon which is absorptive. Further, a material exhibiting a general coloring reaction, that is, a material which changes color after reacting with ammonia component or hydrogen sulfide component in malodorous gas is used as the coloring agent 3. The transparent resin bag 4 serves as a color retarder for retarding the degree of coloring of the coloring agent 3. With this arrangement, when the coloring agent changes color into the same color as that of a color sample 5, it can exhibit the expiration of the life of the deodorant 1.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a deodorizing tool that uses a non-sublimation type deodorizer, such as an adsorption type, chemical change type, or biological change type deodorizer. This invention relates to a new deodorizing tool with a lifespan display function that allows you to visually determine the lifespan of the deodorizer.

(Prior Art) Conventionally, there has been no deodorizing tool using a non-sublimation type deodorizing agent that allows the deodorizing life to be determined visually. In other words, even if the deodorizing life has expired due to use,
This is because the deodorizer itself does not cause any noticeable change in appearance.

(Problem to be Solved by the Invention) If it is not possible to know the lifespan of the deodorizer, the time to replace the deodorizer will be missed, creating an environment in which strange and offensive odors exist.

In particular, when used in large-scale facilities such as public facilities, it is essential to regularly sample and analyze the deodorizing agent to determine its deodorizing lifespan in order to maintain the deodorizing effect.
There is a problem in that the manpower and measuring equipment needed for this increase the cost.

The present invention has been made in view of the above circumstances, and an object of the present invention is to make it possible to visually determine the lifespan of a deodorizing agent.

(Means for Solving the Problems) The present invention solves the above problems and is configured as follows.

In other words, it consists of a coloring agent that changes color due to odor gas and a deodorizing agent, and the coloring agent is covered with a color retarding material so that it develops a specific color specified in advance according to the deodorizing life of the deodorizing agent. This is a deodorizing tool with a feature of lifespan display function.

(Function) In the present invention, the coloring agent combined with the deodorizing agent changes color by reacting with the odor gas.

That is, the coloring agent gradually changes color from its initial color to the final color that appears when it reacts with the odor gas and reaches a saturated state. Usually, the degree of color change from the initial color to the final color is fairly rapid. However, in the present invention, the coloration retarding material covering the coloring agent is configured to appropriately suppress the degree to which the coloring agent reacts with odor gas, and the deodorizing agent captures the odorous gas and deodorizes it. When the life reaches its end, the coloring agent also develops a specific color specified in advance.

Note that the specific color may be a color at the final stage or a color at an intermediate stage. This allows you to visually check the deodorizing lifespan.

(Example) Hereinafter, examples of the deodorizing tool according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an example of a household deodorizing tool. In this figure, reference numeral 1 indicates the entire deodorizing tool, and this deodorizing tool 1
consists of a deodorizer 2, a container 2a containing the deodorizer 2, a coloring agent 3, and a transparent resin bag 4 enclosing the coloring agent 3 and attached to the side of the container 2a. .

As the deodorizing agent 2, activated carbon, which is well known as an adsorption type, is used, but the deodorizing agent 2 is not limited to this, and it is also possible to use a deodorizing agent that involves chemical reaction or biological decomposition.

As the coloring agent 3, one that utilizes a general coloring reaction,
That is, a material that changes color by reacting with the ammonia component or hydrogen sulfide component of the odor gas is used.

For example, cupric sulfate, ferrous sulfate, basic chromium sulfate, mercury chloride, lead chloride, cobalt sulfate, cobalt nitrate, etc.
Compounds such as +Fe, Co, Ni+Cr+Hg+Pb+Cd can be used.

In addition, these coloring agents can be used as they are in the form of crystals or solutions, but for convenience of handling, the coloring agent 3
It may be processed as appropriate, such as into a solution, and supported on a carrier such as paper, cloth, or sponge.

The transparent resin bag 4 functions as a coloring retarder for delaying the degree of coloring reaction of the coloring agent 3. As the color retarding material 4, synthetic resins such as polyethylene, polyvinyl chloride, polystyrene, polyvinyl alcohol, nylon, polyester, acrylic, urethane, and epoxy are appropriately selected and used, and the film thickness can be controlled. From the standpoint of ease and reliability, Tfh& is placed in a film-like bag, and the coloring agent 3 is sealed therein.

In addition, the symbol 5 in FIG. 1 is a color sample displaying a specific color specified in advance, and when the coloring agent 3 changes to almost the same color as the color sample 5, the deodorizing agent 1 This indicates that the lifespan has come to an end.

FIG. 2 is a perspective view illustrating, for example, a deodorizing tool according to the present invention disposed inside an odor gas duct.

The odor gas duct 16 is configured to allow the deodorizing tool 11 to be attached and detached, and is provided with a window through which the color change of the coloring agent 3 can be visually observed from at least the outside.

When the deodorizing life of the deodorizer 12 ends, it can be replaced with a new one.

In addition, in each of the above examples, the case where the deodorizing agent and the coloring agent are arranged separately is illustrated, but the present invention is not limited to this. , or may be used in combination with a deodorizing agent.

Margin below Below, various data obtained from experiments are illustrated.

Table 1 shows the relationship between the film thickness of the color retardant material 4 made of polyethylene resin and the coloring time during which the coloring agent changes to a specific color.

According to this, it can be seen that by changing the film thickness of the synthetic resin, the coloring time of the coloring agent can be delayed in accordance with the life of the deodorizing agent.

Next, specific examples will be described in order of cases in which a deodorizer and a coloring agent are placed side by side (hereinafter referred to as a juxtaposed type) and a case in which both are mixed (hereinafter referred to as a mixed type).

Table 3 (Color development and deodorizing life of side-by-side type) Table 3 is another specific example showing the color development time and deodorizing ability of side-by-side type.

In this case as well, it is shown that the deodorizing life of the deodorizing agent and the coloring of the coloring agent almost match.

Table 4 (Color development and deodorizing life of the mixed type) Table 2 (Color development and deodorizing life of the side-by-side type) Table 2 shows the color development time and deodorizing ability of the deodorizer under the stated conditions for the side-by-side type. .

According to this, it took about 35 hours for the coloring agent CuSO4.5H20 to react with the odor (NH) and change from its initial color (light sky blue) to a specific color (blue-purple). Activated carbon, which is a deodorizing agent, has a concentration of 50pp of odor (NH3(11,4j2)) after 35 hours.
This shows that m could be reduced to only 47 pp- in 8 hours overnight. In other words, it is shown that the deodorizing life of the deodorizing agent and the change of the coloring agent to a specific color almost match.

Table 4 shows an example of a mixture type in which a deodorizing agent and a coloring agent treated with a synthetic resin to delay coloring are mixed. According to this, it is shown that the present invention can be applied also to the case of a mixed type.

Table 5 is another specific example showing the coloring time and deodorizing ability of the mixed type. In this case as well, the deodorizing life of the deodorizing agent and the coloring of the coloring agent almost match.

As shown in Tables 4 and 5, when polyvinyl alcohol resin is used as the color retarding material, it has good hydrophilicity and allows odor gas to pass through easily, so it is difficult to combine the deodorizing agent and the coloring agent. This is advantageous when used in combination.

Color coating methods include (1) a method of coating or painting the powder or crystal of the coloring agent as it is or supported on a carrier with a resin solution by dipping, spraying, roll coating, etc.; A method of kneading and dispersing coloring agent powder into resin and forming it into a pellet or sheet; (3) coloring agent powder or crystals and those supported on paper, cloth, fibers, nonwoven fabric, sponge, etc. Examples include a method in which the material is placed in a bag made of film and hermetically sealed.

From the viewpoint of ease of controlling the coating film thickness and reliability, the method of hermetically sealing the film in a film bag as described above is preferable.

(Effects of the Invention) As is clear from the above explanation, according to the present invention, by covering the coloring agent with a coloring retardant, the degree of coloring reaction is delayed, and the deodorizing life of the deodorizing agent can be extended. Since the deodorizer is used to cause a color reaction, it is possible to visually determine the lifespan of the deodorizer.

As a result, there is no need to miss the time to replace the deodorizer, and even when used in large-scale facilities such as public facilities, there is no need to judge the deodorizing life by sampling as in the past. Therefore, it is possible to significantly reduce costs by reducing manpower and measuring equipment.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an example of a deodorizing tool with a per-minute display function according to the present invention, and FIG. 2 is a perspective view of the same deodorizing tool showing another embodiment. 2.12... Deodorizer body, 3... Coloring agent, 4.
...color retarding material, 5...color sample of specific color. Patent applicant: Takeda Pharmaceutical Company Limited

Claims (1)

[Claims] 1. Consists of a coloring agent that changes color due to odor gas and a deodorizing agent, and the coloring agent is delayed in coloring so that it develops a specific color specified in advance in accordance with the deodorizing life of the deodorizing agent. A deodorizing tool 2 with a lifespan display function characterized in that the deodorizer is covered with a material, a deodorization tool 3 with a lifespan display function according to claim 1, wherein the deodorizing agent is activated carbon, and a deodorization tool 3 with a lifespan display function according to claim 1, wherein the color retardant material is a synthetic resin. Claim 3: The deodorizing tool with a lifespan display function described above, wherein the synthetic resin is polyvinyl alcohol.
Deodorizer with life display function described in