JP2006316401A5 - - Google Patents

Description

Manure odor deodorizing paper piece and method for deodorizing manure odor using the same

This invention includes a valid manure odor deodorizing paper piece to deodorize feces and urine odor, to a deodorizing method manure odor using the same.

Feces and urine odors emitted from toilets after defecation and urination and portable toilets are unpleasant, and there is a need for efficient deodorization methods.
In particular, when a portable toilet is used in a living room or a sick room, a fecal odor is smelled throughout the room, and thus a particularly effective deodorizing method is required.
As a deodorizing method for such toilets and portable toilets, a method of adding a deodorizing agent after defecation is mainly used.
The form of the drug to be used, liquid, those tablets, and such sprays are commercially available. Many liquids use surfactants and chlorine compounds, and their deodorizing performance is insufficient.
In addition, since the deodorant liquid itself has an odor, there is a problem that the component of the deodorant liquid smells after use.

Furthermore, the tablet contains a foaming agent, that looks like crushing when charged into the toilets and portable toilets.
However, tablets, when turned on, first, sink to the bottom, because the crushing starts at the bottom, not much spread in the excreta container and excretion tank, the effect is not sufficient.
In addition, since spray type deodorants are sprayed toward feces and urine after defecation, they have an immediate effect, but soon evaporate and have no sustainability.
Therefore, the effect is small when it cannot be processed immediately after defecation in a portable toilet.
In addition, in the case of a spray, the container can is generated as waste, which is not a preferable product form from the viewpoint of environment and recycling.

On the other hand, organic deodorants such as fragrance-based ones using plant extract oils and ones using organic acids are known as deodorants intended to remove feces and urine odors.
That is, Japanese Patent Application Laid-Open No. 2-277456 (Patent Document 1) discloses a deodorant containing an extract from mushrooms as an active ingredient. Japanese Patent Application Laid-Open No. 11-319051 (Patent Document 3) proposes a liquid deodorant containing a polyphenol component extracted from apple as an active ingredient. .
Furthermore, JP-A-11-111040 (Patent Document 4) proposes a toilet deodorant containing a polymer having a specific structure having a biguanidine group.
These cannot be said to have a sufficient deodorizing effect against manure odor containing a large number of odor components.

Furthermore, a deodorant containing an inorganic compound as a main component having the ability to deodorize bad odors generated from the living environment is also known.
In Japanese Patent Application Laid-Open No. 11-319048 (Patent Document 5), a material containing silica as a main component and sodium oxide or the like as an auxiliary component and an inorganic material containing iron oxide as a main component and sodium oxide or the like as an auxiliary component are baked. A hardened deodorant has been proposed, but since it is baked and hardened, the functional group is limited and the deodorizing performance is not sufficient.
Further, since the colored because it uses iron oxide, APPLICATIONS is limited.
In Japanese Patent Publication No. 5-10950 (Patent Document 6), a mixture of a weakly alkaline substance such as an alkaline earth metal compound is added to zinc oxide. Further, in Japanese Patent Publication No. 5-10951 (Patent Document 7), zinc oxide or the like is used. A compound in which an aliphatic polycarboxylate such as sodium fumarate or sodium maleate is mixed with this zinc compound has been proposed.
However, these become non-uniform state to generate some precipitation, was a very bad deodorant of usability.
Furthermore , in Japanese Patent Application Laid-Open No. 10-328280 (Patent Document 8), an oxide which is composed of zinc oxide and / or basic zinc carbonate and oxycarboxylic acid and completely dissolves in water suitable for spraying in a trigger container. Although the odorant composition has been introduced, there is a problem that in the completely dissolved state, the deodorizing performance is lowered due to the interaction between the two.

The organic or inorganic deodorant can, if liquid, was diluted with neat or a solvent, Ru is used by spraying with a spray.
In addition, if it is powder, it is used in a method such as filling a bag or container and leaving it near the source of bad odor, or kneading into various resin moldings or paints, etc. None of the methods exhibited a sufficient deodorizing function as described above.
JP-A-2-277456 Japanese Patent Laid-Open No. 11-226099 JP 11-319051 A Japanese Patent Laid-Open No. 11-11040 JP 11-319048 A Japanese Patent Publication No. 5-10950 Japanese Patent Publication No. 5-10951 JP-A-10-328280

We view of such current situation, a result of extensive studies, the specific deodorant paper the deodorant was loaded in a water-soluble paper or water dispersible paper, to process efficiently deodorizing excrement odor I found it to be extremely good.
Furthermore, the piece of paper for manure odor deodorant of the present invention, by arranging the excretion container or excretion tanks or portable toilets and toilets, found that the odor of excreted feces can be efficiently deodorized, the present invention It came to completion.

This invention has improved the drawbacks of deodorizing means are applied to a conventional toilet and portable toilets, the manure odor deodorizing paper piece having excellent performance for malodor emanating from manure, the manure odor deodorizing and to provide a deodorizing method manure odor, which comprises using a use paper.

In other words, a piece of paper for manure odor deodorant of the present invention,
At least one compound selected from tetravalent metal phosphate and aluminum silicate, hydrated zirconium oxide, zirconium oxide, zinc oxide, basic zinc carbonate, hydrotalcite compound or calcined product thereof, copper ion, zinc ion Or a deodorant composition comprising at least one compound selected from the group consisting of inorganic compounds carrying at least one ion among manganese ions ,
And it is characterized in that comprising supported on a water-soluble paper or water dispersible paper.

The invention according to claim 2 of the present invention is
In manure odor deodorizing paper according to claim 1,
The deodorant composition is:
It is a deodorant composition comprising aluminum silicate and zinc oxide .

The invention according to claim 3 of the present invention is
In the excrement deodorizing paper piece according to claim 2,
The aluminum silicate and zinc oxide are
The specific surface area of the aluminum silicate is in the range of ²⁰ to 800 m ² / g, and the specific surface area of the zinc oxide is 50 m ² / g or more.
It is characterized by.

The invention according to claim 4 of the present invention is
Manure odor deodorizing paper element according to any one of claims 1 to 3,
It is a deodorizing method for excremental odor characterized by being placed in an excretion container or excretion tank .

Use the manure odor deodorizing paper piece of the present invention, also, by using the deodorizing method of the present invention, it is possible to effectively deodorize feces and urine odor generated in the living space after excretion, comfortable Space is obtained.

Hereinafter, the present invention according manure odor deodorizing paper piece, and details will be described deodorizing method of manure odor using this.

<Water-soluble paper, water-dispersible paper>
The water-soluble paper in the present invention is a paper produced using a water-soluble polymer as a fiber raw material and has a property of quickly dissolving when it comes into contact with water.
Specific water-soluble paper is selected from, for example, methylcellulose, hydroxypropylmethylcellulose, hydroxyethylmethylcellulose, hydroxylethylcellulose, hydroxylpropylcellulose, carboxymethylcellulose, carboxyethylcellulose, polyvinylpyrrolidone, polyvinyl alcohol and derivatives thereof, and mixtures thereof. It is paper which uses the water-soluble polymer made as a fiber raw material.

  In addition, paper made with water-insoluble polymer, for example, acid carboxymethylcellulose fiber and then treated with alkaline aqueous solution such as caustic soda and ammonia solution to make it water-soluble is also used as the water-soluble paper of this invention. it can.

The water-dispersible paper is a paper having a property of rapidly separating entangled fibers when dispersed in water and dispersing in water, and is also referred to as water-degradable paper or water-degradable paper.
The material fiber of the water dispersible paper, wood pulp fibers, non-wood-based pulp fibers, rayon fibers, Ru a polyester fiber.
Water-dispersible paper made of these fibers is produced by a conventional method such as a wet method or a dry method.

<Deodorant>
As the deodorant composition used in this invention ,
At least one compound selected from tetravalent metal phosphate and aluminum silicate (hereinafter referred to as compound A) ;
Hydrated zirconium oxide, zirconium oxide, zinc oxide, basic zinc carbonate, hydrotalcite compound or calcined product thereof, and an inorganic compound obtained by supporting at least one metal ion of copper ions, zinc ions or manganese ions At least one compound selected from the group (hereinafter referred to as Compound B).
The deodorant composition which consists of these is mentioned.
These are those that exhibit a high deodorizing performance for manure odor.

<Tetravalent metal phosphate>
The tetravalent metal phosphate in this invention is a phosphate of a tetravalent metal such as Ti, Ge, Zr, or Sn .
Preferable specific examples include zirconium phosphate, titanium phosphate, and tin phosphate.
These compounds, alpha-type crystal, beta type crystals, gamma-type crystals and the like, but there is a crystalline ones and amorphous having various crystal systems, either can be used.

<Aluminum silicate>
The aluminum silicate of the present invention is a compound that can be represented by the general formula [1] .
This compound may be crystalline or amorphous, but an amorphous one is preferred because of its high deodorizing effect.

Al ₂ 0 ₃ · nSiO ₂ · mH ₂ O ... [1]
However, in formula, n is an integer of n> = 6, and m shows an integer.

Also, aluminum silicate of this invention preferably has a specific surface area of that is 20~800m ² / g, more preferably of 200~800m ² / g.
If the specific surface area is too small, the deodorizing performance of the malodorous gas becomes small, which is not preferable.
The specific surface area can be easily measured by the BET method calculated from the nitrogen adsorption amount.

<Hydrated zirconium oxide, zirconium oxide>
Hydrated zirconium oxide is a compound having the same meaning as zirconium oxyhydroxide, zirconium hydroxide, hydrous zirconium oxide, and zirconium oxide hydrate, which may be crystalline or amorphous, but has high deodorizing performance. Amorphous material is preferable in order to exhibit it.
Hydrated zirconium oxide can be produced by hydrolyzing a zirconium-containing solution such as an aqueous zirconium oxychloride solution with water or an alkaline solution.

Zirconium oxide may be crystalline or amorphous, but amorphous having higher deodorizing performance is preferred.
A commercially available product can be used as it is for the zirconium oxide used in the present invention. Moreover, what baked said hydrated zirconium oxide may be used.

<Zinc oxide>
Zinc oxide in the present invention, Ru can be used by any process.
For example, zinc oxide, zinc carbonate, zinc sulfide, zinc oxalate, etc. obtained by steam oxidation of electric zinc bullion, or obtained by neutralizing an aqueous solution of a water-soluble salt such as zinc sulfate or zinc chloride There are no particular restrictions on the material obtained by firing the material.
In order to obtain higher deodorizing performance, zinc oxide having a specific surface area of 50 m ² / g or more is preferably used.
When the specific surface area is 50 m ² / g or less, the deodorizing performance against sulfurous malodor such as hydrogen sulfide is lowered.

Moreover, what surface-treated zinc oxide can also be used.
Specific examples of surface treatment include those treated with an organopolysiloxane and those coated with an oxide or hydroxide of aluminum, silicon, zirconium or tin. Organic materials such as organopolysiloxane It is preferable to perform the surface treatment with NO because the deodorizing performance against sulfur-based odors such as hydrogen sulfide is higher than the surface treatment with an inorganic material.

<Basic zinc carbonate>
Basic zinc carbonate refers to a mixture or a double salt of zinc carbonate and zinc hydroxide.
A commercially available product can be used as it is, or a solution obtained by pouring an aqueous solution of a zinc salt into an alkali carbonate, an alkali bicarbonate, an alkali hydroxide or the like can be used.

<Hydrotalcite compound and fired product thereof>
The hydrotalcite compound used in the present invention is a compound having a hydrotalcite structure represented by the following general formula [2].
There are magnesium-aluminum hydrotalcite, zinc-aluminum hydrotalcite, etc., and most preferred is magnesium-aluminum hydrotalcite.

_{M 1 (1-X) M} 2X (OH) 2 A n- (x / n) · mH 2 O ··· (2)
In the formula, M ₁ is a divalent metal, M ₂ is a trivalent metal, x is the number of larger than 0 and 0.5 or less, A ^n-carbonate ion, n valent such as sulfuric acid ions , M is a positive number.

  The calcined hydrotalcite is a compound obtained by calcining a hydrotalcite compound at a temperature of about 500 ° C. or more and releasing carbonate groups and hydroxyl groups.

<Inorganic compound carrying at least one metal ion of copper ion, zinc ion or manganese ion>
In the present invention, examples of the inorganic compound that supports at least one metal ion of copper ion, zinc ion, or manganese ion include tetravalent metal phosphate, zeolite, and porous silicon dioxide.
Among the metal ions supported on these inorganic compounds, copper ion or zinc ion is preferable because of its high deodorizing performance.

This is used on a piece of paper for manure odor deodorant of the invention, the mixing ratio of both compounds in a compound A and deodorant composition comprising the compound B, if it contains both, particularly limited not Na.
In order to obtain excellent deodorization performance against manure odor,
Mass ratio is compound A / compound B = 20/80 to 80/20
It is preferable that it is the range of these.

There is no particular limitation on the method for supporting the deodorant composition on water-soluble paper or water-dispersible paper.
For example, a method of making a paper after kneading a deodorant into a water-soluble polymer in advance, making paper, a method of making paper by adding a deodorant composition to a slurry in which fibers such as pulp are dispersed, deodorizing For example, the slurry in which the agent composition is dispersed is post-processed into water-soluble paper by spraying, coating, padding, dipping, or the like.

There is no particular limitation on the amount of the deodorant composition supported.
In general, the larger the loading amount, the greater the deodorizing effect, but it cannot be added in such a large amount that it is inconvenient for the papermaking work and the strength of the produced paper becomes extremely small.

A piece of paper for manure odor deodorant of the present invention, before and after defecation, urination, excretion container, such as a toilet or a portable toilet, the only deodorant effect be placed in excretion tank can be exhibited.
Since only one sheet of paper, that is, one piece of the excrement smell deodorizing paper piece of the present invention is required, it can be easily performed by anyone.
In order to prevent the odor of manure, which is a source of foul odors, from escaping, it is more preferable to dispose this piece of paper on the manure immediately after defecation and urination.
In addition, the user and the caregiver, such as before going to bed before or on the road, to the portable toilet, etc., such as keep-up the piece of paper for manure odor deodorant of the present invention, defecation, in preparation for urination, advance placement This is also a preferred method of use.
Moreover, since it is not powder, there is no powder formation at the time of dispersion | spreading and there is no possibility of spilling and surroundings dirty.
Furthermore, paper for manure odor deodorizing during placement, float on water surface, since paper is gradually dissolved or dispersed while gradually sink, relatively uniformly deodorant composition in water are dispersed, vanishing High odor efficiency.

This piece of paper for manure odor deodorant is used for the toilets and portable toilets manure smell, but is effective, in addition to this application, for example, the living room, in the trash, odor-causing source of only around such as in a refrigerator It can also be used by placing or pasting it.

<Example 1>
25 parts by mass of a deodorant composition in which α-type zirconium phosphate and Zn ion-supported α-type zirconium phosphate are mixed at a mass ratio of 1: 1, 100 parts by mass of fibrous carboxymethyl cellulose insoluble in water, and 1000 parts by mass of water It was dispersed in the part.
To this, 5 parts by mass of a cationic flocculant was added for aggregation, and then paper was made with a paper machine.
The resulting papermaking, dried at a temperature 120 ° C. The cylinder dryer.
Subsequently, the dried paper is immersed in a 50% aqueous methanol solution containing 5% sodium hydroxide using an impregnator, and then dried at a temperature of 90 ° C. to obtain a water-soluble paper for deodorizing manure odor. Obtained.

Next, the following test was performed using the above-mentioned water-soluble paper for deodorizing odor deodorizing, that is, a piece of deodorizing odor deodorizing paper according to the present invention cut into a 10 cm square.

After putting 2 liters of tap water in the portable toilet, 1 liter of human urine collected from the septic tank was poured.
Subsequently, one piece of stool deodorizing paper was placed on the human waste.
Table 1 shows the results of sensory evaluation after the portable toilet was put on the lid and left still for 3 minutes, then the lid was opened.
In addition, sensory evaluation is that six people sniff the odor intensity,
0 No odor 1 Smell that can finally be detected: Detection threshold 2 Weak odor that can tell what odor is: Recognition threshold 3 Smell that can be easily detected 4 Strong odor 5 Evaluated in 6 levels of strong odor.
The numerical values of the upper and lower two persons were cut and the average value of the remaining four persons was taken as the test result.

<Example 2-3 and Comparative Example 1-3>
Except for using the various deodorants listed in Table 1, as a deodorant, a manure odor deodorant paper piece was prepared in exactly the same manner as in Example 1, and the same sensory evaluation as in Example 1 was performed . The results are shown in Table 1.
In Comparative Example 3 without carrying deodorant, paper making by the method of Example 1, a case of using the treated paper.

<Examples 4 and 5 and Comparative Example 4 >
Using the deodorant slurry prepared at the blending ratio shown in Table 2 and applying it to the same water-soluble paper as in Example 1 so as to carry 50 g / m ² as the deodorant, it was quickly dried at a temperature of 110 ° C. Thus, a water-soluble paper for deodorizing manure was obtained.
This deodorant water-soluble paper was cut into a 10 cm square to obtain a manure odor deodorizing paper piece of the present invention (Examples 4 and 5), and the results of the same tests as in Example 1 are shown in Table 3.
Also. For comparison, the case where water-soluble paper treated by the same method as in Examples 4 and 5 without using a deodorant was used as Comparative Example 4 , and the sensory evaluation results are also shown in Table 3.

Note 1) A mixture of α-type zirconium phosphate and Zn ion-supported α-type zirconium phosphate in a mass ratio of 1: 1.
Note 2) A mixture of aluminum silicate and zinc oxide at a mass ratio of 80:20.

< Examples 6 and 7 and Comparative Example 5>
Sensory evaluation was performed using paper pieces treated in the same manner as in Examples 4 and 5 and Comparative Example 4 except that water-dispersible paper made of polyester fibers was used instead of water-soluble paper .
The results are also shown in Table 3.
Moreover, the case of the paper processed by the same method as Example 4 , 5 without using a deodorizer was made into the comparative example 5 , and the result was shown in Table 3.

Claims (4)

At least one compound selected from tetravalent metal phosphate and aluminum silicate, hydrated zirconium oxide, zirconium oxide, zinc oxide, basic zinc carbonate, hydrotalcite compound or calcined product thereof, copper ion, zinc ion Or a deodorant composition comprising at least one compound selected from the group consisting of inorganic compounds carrying at least one ion among manganese ions ,
Manure odor deodorizing paper strip, characterized by comprising supported on a water-soluble paper or water dispersible paper. The deodorant composition is:
Manure odor deodorizing paper strip of claim 1, wherein the aluminum silicate to be deodorant composition consisting of zinc oxide. The aluminum silicate and zinc oxide are
The specific surface area of the aluminum silicate is 20-800m ² / G, and the specific surface area of the zinc oxide is 50 m. ² / G or more
The excrement smell deodorizing paper piece of Claim 2 characterized by these. Manure odor deodorizing paper piece according to claim 1,
A deodorizing method for feces and urine, characterized in that it is placed in an excretory container or excretion tank .