JPH0280018A - Odor-absorbing mat - Google Patents

Abstract

PURPOSE:To naturally eliminate various germs even if they enter together with urine and leave no malodor by forming a layer with a rough upper layer and a denser lower layer having communicating holes and impregnating these layers with microorganisms or/and enzymes. CONSTITUTION:The first layer (lower layer) is made of a foam material, a nonwoven fabric or a felt material having communicating holes, it is a substrate layer with the porosity smaller than that of the second layer (upper layer), and the second layer (upper layer) is made of a sheet, an artificial turf-shaped or planted hair-shaped nonwoven fabric, or a felt materiel with the porosity of 20% or above. The total thickness of both layers is 3mm or above, the layers are impregnated with microorganisms or/and enzymes and processed with an agent accelerating the propagation of microorganisms and enzymes, and further microorganisms or/and enzymes are scattered as desired. Protein decomposing enzymes or microorganisms with the capability to decompose organisms such as starch, sugar and protein are used for the microorganisms and enzymes. Calcium carbonate, magnesium carbonate, calcium silicate or sawdust is used as accelerating agent for the propagation of enzymes and microorganisms.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is applicable to toilets in vehicles, aircraft, ships, etc., mobile toilets, public toilets in buildings, stations, parks, etc., and fixed toilets in homes, etc. Regarding flooring materials suitable for use in
Concerning flooring materials necessary for public health or environmental hygiene.

[Prior Art] At first, the flooring materials for toilets in buildings were laid out with stone, then wood floors were used, then cement mortar floors were used, and recently tiles have become the mainstream. In addition, in the case of mobile toilets, recently there has been an increase in the use of plastic panels instead of steel panels.

In particular, since the place is unclean, the majority of styles prioritize flush toilets.

Recently, as the population has increased and usage has increased, cleanliness has become important, and for this reason, large amounts of chemical detergents have been used. of water had to be used, making the work time-consuming.

[Problems to be Solved by the Invention] Therefore, as a result of various studies, the present inventors have found that the present invention has no odor, has a beautiful appearance, can be cleaned with a small amount of water, and can save time and effort in cleaning. We confirmed that we were able to provide toilet riverbed materials that were easy to wipe and had a clean feel. In other words, conventional toilets were used in a dry state and disinfected and cleaned with chemicals and chemical detergents, but currently, priority is given to water drainage, so although it has a temporary effect, the toilet bowl and Urinary stones tend to accumulate on the floor etc. In particular, on the floor surface, urinary stones are formed due to scattered urine.
This invention not only gives off a bad odor but also gives an aesthetically unhygienic appearance.The present invention can easily improve these drawbacks, eliminate the worry of environmental deterioration caused by disinfectants and chemical detergents, and eliminate bad odors. The purpose of this invention is to provide a deodorizer that can treat and decompose sources and unpleasant colors.

[Means for Solving the Problems] The gist of the present invention is to provide a sheet having a base layer made of a foam material, a felt material, or a nonwoven fabric having communicating holes as the first layer, and having a porosity of 20% or more; The second layer is made of artificial grass, flocked nonwoven fabric, or felt, and has a total thickness of 3 m or more, and these layers are impregnated with microorganisms and/or enzymes, and are made of an agent that promotes the proliferation of microorganisms and enzymes. This is a deodorizing mat that solves the drawbacks of the prior art by processing and, if desired, spraying the microorganisms and/or enzymes.

Based on the results of various studies, the present inventors considered the following conditions for producing the deodorizing mat of the present invention.

That is, human urine does not emit much of a bad odor when it is inside the body, but when it exits the body, microorganisms in the air attach to it, causing it to emit a bad odor. Urinary stones, which are the source of bad odor, are caused by urea, which is contained in human urine for 7 days in order to absorb organic matter (calories), which sticks to the toilet bowl or floor covered with urine and dries. It forms as a solid substance. This solid substance does not emit much of a bad odor at this point, but as time passes, it will generate a bad odor as it decomposes due to the action of bacteria and microorganisms in the air. Generally, attempts to remove these substances using disinfectants, chemical agents, etc. are impossible.

When urine falls onto a breathable mat, it is necessary to allow it to quickly penetrate into the lower part of the mat.

At the bottom of the mat, the presence of enzymes and microorganisms promotes decomposition of the infiltrated urine under aerobic conditions, making it odorless. Microorganisms require conditions to maintain them in a near-moist state.As a result of repeated research, we have found that some of the desired conditions can be ensured by using foam materials or nonwoven fabrics that have communicating holes. found. This is because it is easy to increase the contact area with air.

The deodorizing mat of the present invention has a base material layer having a larger porosity than the second layer, which is made of a foam material, a nonwoven fabric, or a felt material having communicating pores, as a lower layer, and It is characterized by a structure in which the second layer is a layer consisting of 20% or more of sheet, artificial grass, flocked nonwoven fabric, or felt, and the upper layer has a total thickness of 3 m or more, These layers are impregnated with microorganisms and/or enzymes and, if desired, treated with an agent that promotes the proliferation of microorganisms and enzymes.

Microorganisms and/or enzymes are sprayed on the deodorizing mat with the above structure, and the upper layer is coarse and has a large porosity, and the lower layer is dense and has a low porosity. Since the structure is more compact, the scattered urine can easily flow down into the upper layer, and the lower layer has favorable conditions for the growth of microorganisms and enzymes, and later, for example, bacteria can Even if it comes in with urine, there are conditions for microorganisms, so it will be naturally eliminated.

In the deodorizing mat of the present invention, the upper layer has a coarse density and the lower layer has a denser layer with communicating pores, so when pressure is applied from above, the moisture there is released into the layer. On the other hand, the movement of moisture increases contact with air, which results in better functionality.

These are necessary to meet the moisture and air requirements of microbial growth conditions. Furthermore, it is preferable that the material has good water retention properties.

Next, the second condition regarding the material is as follows. That is, human urine easily adheres to inorganic materials. This is because inorganic materials appear to have a dense surface, but when viewed microscopically, the surface is uneven, not hydrophobic, and has countless pinholes. Therefore, the components in the urine adhere to the surface and deposit, making it difficult to remove. Additionally, the urine that has penetrated the pinholes is not easily decomposed and becomes a source of bad odors over time.

In contrast, the deodorizing mat of the present invention eliminates the above-mentioned problems, absorbs urine, and leaves no traces of urine on the surface. Therefore, the aesthetic appearance of the floor is maintained. In addition, the odor is caused by urine that has penetrated the bottom part of the floor.
Here, decomposition occurs quickly due to the presence of sufficient moisture and air.

As the microorganisms and enzymes to be used by impregnating the deodorizing mat of the present invention, proteolytic enzymes or microorganisms having the ability to decompose organic substances such as starch, sugars, and proteins are used. (Aa+ylaze), hemicellulase (Hem
icalulase), urease
enzymes such as Bacillus spp.
It is preferable to use microorganisms such as the genus Nitrosomonas, the genus Nitrobacter, and the genus Cellulomonas. It is used for impregnation.

Furthermore, according to the present invention, as a promoter for propagating enzymes and microorganisms, for example, calcium carbonate, magnesium chloride, and calcium silica can be used, and in the case of organic powder, sawdust can be used.

In addition, the Bacillus genus used as the microorganism used in the deodorizing mat of the present invention is particularly Bacillus (B, 5ubti11is) [IAM (Institut
ute of AppliedMicrobiolog
yi Abbreviation of Useful Bacterial Strain Preservation Facility, Institute of Applied Microbiology, University of Tokyo: 1168 and 12118.
] is suitable, but in addition to this, naratou (B, natt
o) [IFO (Institute for Ferm)
30091 bacterium
Coagulance (B.

coagulans) [IAM 1115] and macerans (B, macerans) [IAM 1243].

Furthermore, microorganisms such as the genus Nitrosomonas, Nitrobacter, and Cellulomonas can be used.

Further, as the accelerator used in the deodorizing mat of the present invention, enzymes (ie, for accelerating the decomposition of starch, fat, and urea) can be used.

In addition, the deodorizing mat of the present invention uses a fragrance component, and in order to mask or neutralize the odor peculiar to urine, a vegetable fragrance with a high residual fragrance is preferably used6. For example, avinis oil (
Pineaceae plant extract), cypress oil (Araceae plant extract), camphor oil (Lauraceae plant extract), cedarwood oil (F:, Lacqueraceae plant extract), lavender oil (
Essential oils extracted from plants such as Lamiaceae plant extracts are suitable, and deodorant fragrances can also be used.

[Function] The deodorizing mechanism of the deodorizing mat of the present invention is thought to be as follows.

Urine easily passes through the upper layer with communicating holes and flows down to the lower layer. At that time, as it passes through the upper layer, it passes through the presence of aerobic microorganisms and enzymes.
, etc. are decomposed.

On the other hand, the decomposition of urine flowing down to the lower layer is promoted by the action of anaerobic microorganisms and enzymes. &1 What is decomposed under aerobic conditions is transferred to the upper layer, that is, under aerobic conditions, by the pressure load when a person steps on the deodorizing mat of the present invention, and is deodorized. Additionally, due to the weight bearing of the person, the liquid and gas in the deodorant mat's continuous vents move upwards, downwards, to the left, and to the right, removing substances that cause bad odors from anaerobic conditions. The condition changes to aerobic conditions9, which promotes decomposition and makes it odorless. As described above, the deodorizing mat of the present invention does not produce any bad odor and is popular for use.

In addition, calcium contained in urine often adheres to toilet bowls and tends to cause problems, but urine that adheres to the deodorizing mat of the present invention precipitates calcium within its porous layer, so it is powdered. It sticks to the surface and is easily removed by washing.

The necessary conditions that the deodorizing mat of the present invention must satisfy are as follows. First, it is not only porous and breathable, but also has water permeability and excellent water retention. Secondly, it has a shape that not only has the first function but also allows enzymes and microorganisms to be immobilized. Thirdly, conditions do not particularly hinder the growth of microorganisms. Fourthly, conditions must be satisfied that allow the enzyme to function satisfactorily. Fifth, the material is mainly made of organic fibers that have elasticity. Sixthly, all mat materials have a hydrophilic function.

Traditionally, flushing was the mainstream method, and because the floor and toilet bowl are not constantly flushed with water, they tend to dry out easily. Human urine dries and settles, forming urinary stones. It is often deposited. As a result, as the days pass, they develop a foul odor and become a breeding ground for bacteria.

On the other hand, in the deodorizing mat of the present invention, a porous foam material with communicating holes, a nonwoven fabric, or felt is used for the lower part, which improves water retention and fluidity. This is to have. The thickness of this lower layer is preferably about 21 mm or greater.

In addition, the upper layer is made of nonwoven fabric or felt, and the fibers, filaments, and threads are thicker than the lower layer, and are more than o, osm + Φ,
More preferably, it is 1■φ to 3■φ. 0 if desired
．． 0.5■φ for the film layer having a thickness of 51Φ or more
or more, the hole area ratio is 40% or more, preferably 70% or more.
A film mat with a porosity of ~80% is used.

The bottom layer and top layer are suitably glued or attached. At this time, the combined thickness of the lower layer and upper layer is 4I
Il1 or more is preferable. When using a film mat, the upper layer preferably has a float of i,sm or more, and the lower layer preferably has a thickness of 21 or more.

When using a porous foam having communicating pores as the lower layer, the pores are preferably 2 mφ or less, and 0.3 to 0.3 mφ or less.
It is preferable to have communication holes of o, swnΦ.

On the other hand, when using artificial grass for the upper layer, the lower layer is
Use something similar to the one that uses film matte. In addition, if artificial grass is planted on non-woven fabric,
Special combinations are also possible.

For example, urethane foam is useful as a lower layer because it has suitable communication holes and has excellent water retention properties, but it cannot be used as an upper layer and is unsuitable due to its abrasion resistance.

The thickness of the deodorizing mat of the present invention is preferably 3 mm or more. That is, in order to maintain conditions suitable for the propagation of microorganisms, etc., a thickness of 3 m or more is required.

The deodorizing mat of the present invention is particularly effective in preventing urinary stone precipitation, deodorizes in a short time, and is suitable for any type of toilet.

Next, the deodorizing mat of the present invention will be explained using specific examples, but the present invention is not limited to the following examples.

[Example 1] As the lower layer of a deodorizing mat, a soft foamed urethane foam material with a diameter Q of 7 mφ and a thickness of 5 cm was used as the first layer, and as the upper layer. , a nonwoven fabric layer 2 with a thickness of 2 ms was used, and both layers were spot-bonded with rubber glue to integrate them. Its cross section has the structure shown in FIG. Such a deodorizing mat 10 is used by being placed on a toilet bowl 11, as shown in the perspective views of FIGS. 2 and 3. The enzymes and microorganisms shown in Table 1 were dispersed in water at a ratio of Ig/l. Mat 10 was used for toilet 11. Toilet 11 was used by 102 people on average for 71 days. After one week, the odor stopped. There was no accumulation of urinary stones.One week later, deodorizing mat 10
After washing with water, performing the same treatment, and using it repeatedly, there was no odor and no urinary stones were found for half a year.

Plate J Enzymes and microorganisms [Example 2] As the lower layer of the deodorizing mat, a foam layer 1 made of soft foamed urethane and having a thickness of 5 mm and having communicating holes with a pore diameter of 0.7 mm φ was used, and as the upper layer. is artificial turf layer 3 made of vinyl chloride
The substrate cloth 4 was formed with a porosity of 70%, and the artificial turf layer 3.4 had a total thickness of 6 cm. The lower layer 1 and the upper layer 3.4 are spot-bonded with rubber glue. Its cross section has the structure shown in FIG.

Such a deodorizing mat 10 was placed in a toilet 11 and used as shown in FIG. 2.3. Ig/j of the enzymes and microorganisms shown in Table 1! Dispersed in water at a ratio of 0
, 217 m'' on the deodorizing mat 10.

The thus produced deodorizing mat 10 was used for one week with an average of 105 toilet uses/day, but there was almost no odor and no accumulation of urinary stones was observed. After one week, the deodorizing mat 10 was washed with water, treated in the same way, and used repeatedly. As a result, there was no odor and no urinary stones were observed for half a year.

[Example 3] As the lower layer of the deodorizing mat 10, the nonwoven fabric layer 5 for osipori was used.
(4 ■ thickness), the lower layer is made of vinyl chloride artificial turf layer 3, the artificial turf substrate cloth 4 is made of a material with a porosity of 70%, and the artificial turf layer 3 is made of vinyl chloride. .4 (total thickness 6m)
was formed. The lower layer 5 and the upper layer 3.4 were spot-bonded with rubber glue. The cross section of the deodorant mat 10 having the structure shown in FIG.
It was placed and used as shown in the figure.

The enzymes and microorganisms shown in Table 1 were added to this deodorizing mat 10.
g/j! Dispersed in water at a rate of 0.21/s”
It was sprayed on the deodorizing mat 10 at a ratio of .

Such a deodorizing mat 10 was used in the toilet 11 by an average of 120 people/day. One week later6, there was almost no odor and no accumulation of urinary stones was observed. 1 week later,
The deodorizing mat 10 was washed with water, treated in the same manner, and used repeatedly. As a result, there was no odor and no urinary stones were found for six months.

[Example 4] As a deodorizing mat, a soft urethane foam was formed on the substrate layer 4 and had communication holes with a pore diameter of 0.7 mm, and the thickness was 5 mm.
Then, a foam layer 5 was formed, and an artificial turf made of vinyl chloride was flocked to the substrate layer 4 through the foam layer 5 to form a layer 3 for artificial turf made of vinyl chloride. The substrate cloth 4 was produced using a material with a porosity of 70%. The general message is that of 8I. The 1° deodorizing mat thus produced was placed and used as shown in Figure 2.3. The cross section is shown in FIG. On this deodorizing mat 10, enzymes and microorganisms shown in Table 1 dispersed in water at a ratio of 1 g/l were sprayed at a ratio of 0.217-3.

The thus produced deodorizing mat 10 was placed in the toilet 11 and used.

The toilet was used by an average of 115 people per day, and after one week there was almost no odor and no accumulation of urinary stones was observed. After one week, this deodorizing mat was washed with water and treated in the same way.
As a result of repeated use, there was no odor and no urinary stones were found for half a year.

[Example 5] A nonwoven fabric layer 5 (thickness: 4 mm) is formed on the substrate cloth 4, and an artificial grass made of vinyl chloride is applied to the substrate Jl! through the layer 5. 14
The artificial turf layer 3 made of vinyl chloride was formed. The substrate cloth 4 was produced using a material with a porosity of 70%. Its total thickness is Bm. Its cross section is shown in FIG. Such a deodorizing mat 10 is placed and used in the toilet 11 as shown in Fig. 2.3, and the first
Ig/j the enzymes and microorganisms shown in the table! The above deodorizing mat 1 was dispersed in water at a ratio of o, zl/m".
Sprayed on 0.

The thus produced deodorizing mat 10 was used by an average of 95 people/day using the toilet. Even after one week, there was almost no odor and no accumulation of urinary stones was observed. One week later, the deodorizing mat 10 was washed with water, treated in the same manner, and used repeatedly. As a result, there was no odor and no urinary stones were observed for half a year.

[Example 6] Similarly to Example 5, a nonwoven fabric (4 m thick) was placed on the substrate layer 4.
) A layer 5 was formed, and vinyl chloride artificial turf was flocked onto the substrate M4 through the layer 1a5 to form a vinyl chloride artificial turf layer 3. The substrate layer 4 was produced using one with a porosity of 0%. Its total thickness is 8cm. Six or more deodorizing mats 10, the cross-section of which is shown in FIG. 8, were placed in a toilet 11 as shown in FIGS. 2.3 and used. This deodorizing mat contains 1g of the enzymes and microorganisms shown in Table 1 per 1g! Dispersed in water at a ratio of 0
．． 21! The deodorizing mats 10 thus produced were sprayed on an average of 1,111,000 toilets 11
used for. After one week, there was almost no odor and no accumulation of urinary stones was observed. After one week, the deodorizing mat 10 was washed with water, treated in the same manner, and used repeatedly. As a result, there was no odor for six months, and no urinary stones were observed.

[Example 7] A nonwoven fabric with a thickness of 51 is used as the lower layer 5, and the lower part! f! The fiber diameter of I5 is made thinner, and the porosity is smaller than that of the upper layer. A nonwoven fabric is also used as the upper layer 6, and its Ja male is 06
A one with a diameter of 5 ■φ was used. Its cross section is shown in FIG. This deodorizing mat 10 contains 1 g of the enzymes and microorganisms shown in Table 1! Dispersed in water at a ratio of 0,
It was sprayed at a rate of 217 m''.Such deodorizing mat 1
0 is placed and used in the toilet 11 as shown in FIG. 2.3. Used by toilets with average usage of 108 people/day, 1
There was almost no odor during the week, and no accumulation of urinary stones was observed. After one week, the deodorizing mat 10 was washed with water and treated in the same manner.
As a result of repeated use, there was no odor and no urinary stones were found for half a year.

[Effects of the Invention] Firstly, as mentioned above, in order for urine to perform its ideal decomposition function, it maximizes the contact between aerobic microorganisms and enzymes to prevent decomposition. The ability to provide a deodorizing mat that promotes deodorization, that is, the lower layer has the function of transferring the decomposed substances under anaerobic conditions to the action of microorganisms and enzymes to aerobic conditions, decomposing them again, and making them odorless. Therefore, technical effects such as the fact that it does not emit a bad odor, and secondly, the ability to provide a deodorizing mat that is easy to clean and can be easily washed with water, were obtained.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an example of the deodorizing mat of the present invention. FIG. 2.3 is a perspective view showing how the deodorizing mat of the present invention is used. FIG. 4 is an explanatory perspective view showing a cross section of the deodorizing mat of the present invention. FIG. 5 is an explanatory perspective view showing a cross section of another example of the deodorizing mat of the present invention. FIG. 6 is also an explanatory perspective view showing a cross section of another example of the deodorizing mat of the present invention. FIG. 7 is an explanatory perspective view showing a cross section of another example of the deodorizing mat of the present invention. FIG. 8 is an explanatory perspective view showing a cross section of another example of the deodorizing mat of the present invention. FIG. 9 is an explanatory perspective view showing a cross section of another example of the deodorizing mat of the present invention. Patent applicant Mitsubishi Mining Cement Co., Ltd. Shinkansen Railway t
i Co., Ltd. Agent Patent Attorney Hiroshi Kuramochi Figure 8 Figure 9

Claims (1)

[Claims] The first layer is a base layer made of foam material, nonwoven fabric, or felt material with communicating pores and has a smaller porosity than the second layer, and has a porosity of 20% or more, such as a sheet, artificial grass, flocked nonwoven fabric, or A layer made of felt material is used as the second layer, and the total thickness is 3 mm or more, these layers are impregnated with microorganisms and/or enzymes, processed with an agent that promotes the proliferation of microorganisms and enzymes, and optionally, Furthermore, a deodorizing mat characterized in that the microorganisms and/or enzymes are sprayed thereon.