JP3200305B2 - Sandy material for sandboxes or for treatment of domestic animal excrement - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sandbox for use in a sandbox in a park or the like or a place for defecation of animals bred indoors, or for treating excrement of bred animals.

[0002]

2. Description of the Related Art Conventionally, various public facilities such as parks, schools, kindergartens and playgrounds are provided with sandboxes for children to play or for sports. Natural sand is used as it is in this sandbox.

In a home where small animals such as dogs and cats are kept indoors, a sand box or the like is installed as a toilet for animals.
So she is trying to defecate. Sand used in such a sand box is, in addition to natural sand, to improve water absorption and deodorization, especially for excrement disposal, for example, zeolite,
Sand-like products containing sodium silicate foam, activated carbon and the like are also commercially available.

[0004]

However, according to the prior art, the sand used in the sandbox of the above-mentioned public facility is not disinfected at all, and is left exposed to acid rain, dust, dust and the like. It can be stained by birds, dogs and cats, and roundworm eggs can be present. Therefore, various pathogens and various germs are present in the sand, and the sandbox is extremely unsanitary.If children play in the sand in such a sandbox, various diseases may occur. It was a very serious hygiene problem.

[0005] Further, regarding sand used in animal toilets, there is a high possibility that various bacteria and roundworm eggs are present in the sand in addition to the sand in the sandbox, and a sand box containing such unsanitary sand is used. However, it was a serious problem from a sanitary point of view that it was installed indoors. In addition, ammonia odor and the like are inevitably emitted from the excrement of sand animals, but natural sand has almost no deodorizing effect, and a sufficiently satisfactory deodorizing effect has been obtained even with artificial sand containing activated carbon and the like. Because there is no
There was also a problem that a bad smell drifted in the house and the living environment became unpleasant.

Therefore, the present invention is clean and safe to use,
Further, it is an object of the present invention to provide a sandy material for a sandbox or a treatment of domestic animal excrement which can improve the deodorizing effect.

[0007]

In order to achieve the above-mentioned object, a sandy material for a sandbox or for treating animal excrement according to the present invention has at least an antibacterial substance. Containing silica gel loaded with
Ludge, and at least one selected from water-absorbing polymers.
The antibacterial particles containing one kind are characterized in that they are partially or entirely constituted.

According to the sandy material of the present invention, the antibacterial particles constituting a part or all of the particles are imparted with antibacterial properties by silica gel carrying an antibacterial substance. The generation of putrefaction odor or the like due to the propagation of fungi is also prevented. In addition, silica gel not only acts as a carrier carrying an antibacterial substance, but also has an action of absorbing moisture, so that the entire sand-like substance dries, and organisms that are vulnerable to drying such as roundworm eggs and mites die. Further, for example, from animal excrement and the like, dehydration is promoted to solidify the excrement, and at the same time, malodorous components such as ammonia are adsorbed and generation of malodor is suppressed. In addition, silica gel contains acid rain and harmful components in the atmosphere such as SO ₂ ,
NO _X, since the CO or the like is also serve to adsorb and purify the rain and air also helps to prevent environmental pollution.

Here, the sandy material of the present invention is as described above.
The whole may be composed of antibacterial particles, but a part may be composed of antibacterial particles and the rest may be particles having no antibacterial properties. The mixing ratio of the antibacterial particles to the whole may be appropriately adjusted within a range in which the sandy substance can maintain an effective antibacterial action as a whole according to the antibacterial strength of the antibacterial substance, for example, differences in use and cost. Is determined by the balance of

Further, the antibacterial particles themselves are mainly composed of silica gel carrying an antibacterial substance, and not only those comprising silica gel particles carrying the antibacterial substance but also those carrying the antibacterial substance. Fine particles may be further mixed with other components, and the mixture may be formed into particles.

More specifically 0011], before Symbol antibacterial particles, manufactured paper sludge, and at least one member selected from water-absorbing polymer, sand a composition comprising a particulate silica gel having supported thereon said antibacterial agent It is good to have a large shape.

The size of the sand particles referred to here may be any size as long as they are not as loose as pebbles and do not scatter like powder, but if a particularly desirable range is specifically shown, the size of the particles is about 5 to 30 mesh. Is the diameter. The fine particles may be in the form of a powder that can be uniformly mixed, but if a particularly desirable range is specifically shown, the average particle diameter is about several μm to several hundred μm.

According to the sand-like material of this first aspect, the antimicrobial particles, in addition to the fine particles of silica gel was supported antibacterial substances, manufacturing paper sludge, and at least one selected from the water-absorbing polymer Because it is a composition that contains
It is superior in deodorizing performance and water absorption performance as compared with the case where silica gel carrying an antibacterial substance is used as a single component. Therefore, it is particularly suitable for the treatment of domestic animal excrement.

The mixing ratio of each of the above components may be determined depending on the purpose and cost. However, in order to increase the deodorizing performance, it is necessary to increase the amount of silica gel fine particles. It is advisable to increase the number of conductive polymers. When comparing papermaking sludge with water-absorbing polymer,
Water-absorbing polymers are superior in terms of water-absorbing performance, but paper sludge has a correspondingly high water absorption, and furthermore, paper-making sludge is extremely inexpensive because it is a pulp component generated as waste during papermaking. Because it is lightweight and easy to mold,
The utility value is great considering the manufacturing cost. The water-absorbing polymer may be any general polymer as used in commercially available disposable diapers and the like, for example, polyvinyl alcohol, acrylonitrile graft-polymerized on starch, acrylic acid-vinyl alcohol copolymer, and other polyacrylic polymers. An acid type or a polyoxyethylene type may be used. In addition, more specifically, if a desirable compounding ratio is shown, for example, for treatment of domestic animal excrement, 1 to 30% by weight of silica gel having an average particle diameter of 1 to 20 μm, 40 to 60% by weight of papermaking sludge, and water absorption 20 polymer
When mixed with ４０40% by weight and formed into a particle size of about 5 to 30 mesh, it is relatively inexpensive and has excellent water absorption.

[0015] Now, the sand-like material of claim 1, wherein, for example as in Claim 2, wherein the antimicrobial particles may be made of the sand-sized silica gel was supported antibacterial substance. According to the sand-like material according to claim 2, silica gel itself as a carrier for antibacterial substances, are to sand grains large, in addition to deodorization action and dewatering action of the silica gel, the antimicrobial action of the antimicrobial agent is obtained. Therefore, the desired sandy substance can be easily obtained only by producing the silica gel having a large particle size and carrying the antibacterial substance.

As the antibacterial substances, organic compounds and plant extracts are also known, but they have a problem that they are difficult to maintain their effects due to their relatively high volatility. In this respect, as in Claim 3, wherein the antimicrobial agent is silver, copper, and may consist of at least one salt or complex salt selected from zinc. In particular, as described in claim 4 , the antibacterial substance is preferably a silver thiosulfato complex.

According to the third aspect of the present invention, since there is no volatility, the antibacterial effect is maintained for a long time, and there is no fear that volatile components are inhaled by the human body. In particular, the sandy material according to the fourth aspect is preferable because a strong antibacterial activity can be obtained even in a small amount as compared with other metal salts and the like. The amount of the antibacterial substance to be carried is less effective than a certain amount,
The effect is correspondingly high if the amount is large, but if a certain effect is obtained, the cost is disadvantageous even if the amount is excessive. The effective amount of the carrier varies depending on the strength of the antibacterial substance and the desired duration of the antibacterial property, and cannot be specified unconditionally. However, for example, in the case of a silver thiosulfato complex salt, the amount of silica gel converted to the weight of silver is 0%. When 0.05 to 5% by weight of silica gel is supported on silica gel, a suitable effect can be obtained and it is realistic from the viewpoint of cost.

When a part of the sand-like material is constituted by antibacterial particles, the remaining particles having no antibacterial properties can be constituted as follows. That is, as described in claim 5 , natural sand is preferably added in addition to the antibacterial particles.

With such a configuration, since the sand-like material can be made inexpensive as a whole, it is suitable for use in large quantities for sandboxes and the like. In this case, since the sandy material may be sandy as a whole, the particle size of the antibacterial particles is not scattered, not only of a large sand particle size, but also of a fine particle shape. So there is no problem. Although the ratio of the antibacterial particles cannot be specified unconditionally, as a guide, for example, silver thiosulfato having a particle diameter of 3 to 20 μm (about 4 μm on average) and 1 to 5% by weight (about 3% by weight) is used. In the case of an antibacterial silica gel carrying a complex salt, an appropriate effect can be obtained by adding 0.05 to 5% by weight to natural sand having no antibacterial activity. Here, if the amount is less than 0.05% by weight, sufficient antibacterial properties may not be maintained. On the other hand, if the amount is more than 5% by weight, sufficient antibacterial properties are already present, which is disadvantageous in terms of cost.

Further, as described in claim 6 , in addition to the antibacterial particles, a composition obtained by molding a composition containing at least one selected from silica gel, papermaking sludge, and a water-absorbing polymer into a large sand particle is added. May be. With such a configuration, the whole sand-like material can be made to have extremely high water absorption, so that it is suitable for treating animal excrement.

Further, in addition to the above-mentioned antibacterial particles,
A silica gel particle may be added. in this case
Dehydration and deodorization effects are improved, and various bacteria and roundworm eggs
An effect of killing and absorbing an odor is obtained. here
As the silica gel used in the above, specifically, type A, B
Type, RD type and ID type silica gel can be used.
Crushed or spherical, particle size 0.001-5m
m, surface area 200-800m ^Two/ G, pore volume 0.3-
1.0 ml / g, average pore diameter 20-1000 Å
Trom, specific heat 0.2 ~ 0.4kcal / kg ℃, heat transfer
Conductivity 0.15 to 0.04 kcal / m · hr · ° C, pH
5.0 to 8.0, water content 8.0% by weight or less, SiO_TwoTo
On silica gel with physical properties of more than 99.5% by weight
If it is, it can be easily manufactured industrially, and a sufficient effect can be obtained.
You.

The particles to be added in addition to the antibacterial particles may be mixed in an appropriate ratio according to the intended use. For example, sandy materials for sandboxes are in direct contact with children's hands, and excessively dehydrated. It is better to mix particles with no dehydration performance, such as natural sand, to some extent, because raising the performance may cause rough hands. In addition, it is better to absorb and solidify water from the excrement as soon as possible, and it is more likely that bacteria and roundworm eggs are present. The higher the deodorizing properties, the better.

By the way, among the sand-like material of the present invention, for those subjected to molding processing, as claimed in claim 7, wherein the sand-sized particles may be formed into a predetermined shape. Here, the predetermined shape is, for example, a polygonal shape such as a triangle or a quadrangle, a round shape, a star shape, or a character shape which is intended to image an animal or other silhouette. It is a shape. In addition, although various molding methods are conceivable, in order to produce a large amount of particles as a sand-like material, what is extruded into a predetermined shape,
A method of cutting finely is convenient.

If such a sandy material is used for a sandbox, the sandbox can be made a unique sandbox completely different from natural sand, and children can enjoy playing with the sand. Further, in the case of processing for excrement of domestic animals, for example, if it is formed into a shape that resembles the silhouette of a cat, it can be characterized as sand for cats, resulting in a highly value-added sandy substance.

Furthermore, as according to claim 8, wherein the sand-sized particles, may be colored in a predetermined color. If such a sandy material is used for a sandbox, the sandbox can be made a unique sandbox completely different from natural sand, and children can enjoy playing with the sand. Also, if it is used for domestic animal excrement disposal, for example,
You can select a sandy material of a color that matches the interior, and it looks good when installed in a house. Although various coloring methods are conceivable, a method that does not easily fade is desirable, and a method that does not cause coloring of children's clothes is particularly desirable for sandboxes. In addition, while forming into a predetermined shape,
Those colored in a predetermined color are particularly desirable.

[0026]

Next, the present invention will be described in detail with reference to preferred embodiments. Example 1 (1) Preparation of Antibacterial Silica Gel Fine Particles 60 ml of ion-exchanged water was heated to 40 ° C., and 0.464 g (2.8 × 10 ⁻³ mol) of silver acetate was added thereto, and 40 to 50 were added.
Stirred at about 5 minutes. Thereafter, the mixture was filtered through filter paper (No. 2) to remove undissolved silver acetate. To the solution thus obtained, 2.0 g (7.9 × 10 ⁻³ mol) of sodium sulfite was added with stirring. And stirred until white cloudy solution was added sodium sulfite is clear, then stirred with sodium thiosulfate 1.32 g (5.3 × 10 ^-3 mol), further silica gel <product name "Sylysia #
550 "(average particle diameter: 2.8 μm):> 5 g manufactured by Fuji Silysia Chemical Ltd. was added, and the mixture was stirred for 10 minutes to allow silica gel to support silver sodium thiosulfato complex. Thereafter, a mixture of this silver sodium thiosulfato complex salt solution and silica gel is put into a rotary evaporator <product name “Rotary evaporator RE47”: manufactured by Yamato Scientific Co., Ltd.>, and the solvent component is added at a temperature of about 60 ° C. and about 3000 Pa or less. Evaporated off. Thereafter, the obtained silica gel was further dried in a vacuum drier at a temperature of 60 ° C. under a pressure of about 3000 Pa or less for 12 hours.

(2) Preparation of Sandy Material for Sandbox The antibacterial silica gel prepared in the above (1) was prepared using natural sand (silica sand) or silica gel particles <product name “Fuji Silica Gel B type” (average particle size of 5 to 5). 30 mesh): manufactured by Fuji Silysia Chemical Ltd. to obtain a sandy material for a sandbox. In addition, antibacterial silica gel was added to natural sand in a volume of 0.1%.
03% by weight, 0.05% by weight, 0.5% by weight, 1.0% by weight, 3.0% by weight, and 5.0% by weight added (sandy substances 1 to 6), Antibacterial silica gel added with 0.03% by weight, 0.05% by weight, 0.5% by weight, 1.0% by weight, 3.0% by weight, and 5.0% by weight, respectively (sandy substances 7 to 12) ) Was prepared. For comparison, natural sand (sandy substance 13) and silica gel particles (sandy substance 14) to which no antibacterial silica gel was added were prepared.

(3) Antibacterial test Escherichia coli was cultured at 37 ° C., 90% R. H. After culturing for 24 hours in the above atmosphere, the cells were suspended in sterile phosphate buffered saline, and the cells were suspended in about 10 ⁶ C.I. F. U. (Colony forming unit) / ml. 10 g of the above sandy substances 1 to 8 were added to 100 ml of a 1/50 concentration ordinary broth medium, and 0.1 ml of the above bacterial solution was added dropwise. H. Stored under the above atmosphere. And after 0 hours, 6 hours, 24 hours,
1 ml of each bacterial solution was collected and added dropwise to another Petri dish, and pour plate culture using a normal agar medium (37 ° C., 1
Days) and the C.I. F. U. It was converted to a value. The number of trials is two. Table 1 shows the test results.

[0029]

[Table 1]

As is evident from Table 1, the growth of E. coli was reduced by 1 / compared to that of silica sand alone and silica gel alone.
It could be suppressed to about 1000. That is, it can be seen that the sandy material for a sandbox of this example has excellent antibacterial performance. In addition, in the case of the antibacterial silica gel prepared by the above method, it is found that the addition of 0.03% by weight is slightly inferior to the antibacterial property, but the addition of 0.05% by weight or more provides excellent antibacterial property.

Therefore, if the sand-like material of the present embodiment is used as sand for a sandbox, there is no risk that germs will adhere to the limbs even if children play with the sand, and the sandbox can be maintained in a clean state.
In this example, silver was used as the antibacterial substance.
Copper and zinc are also known to have antibacterial properties. Antibacterial properties decrease in the order of silver, copper, and zinc, but the raw material price also decreases in the same order, so it is possible to increase the amount of addition even at the same cost, and the antibacterial power of the entire sandy material is almost the same. can do. Therefore, copper or zinc may be used instead of silver.

Example 2 (1) Preparation of Sandy Material for Treating Breed Animal Excrement Antibacterial silica gel fine particles prepared in the same manner as in Example 1 above were prepared using four types of silica gel particles <product name “Fuji Silica Gel A” Shape (average particle size 5-30 mesh), "Fuji Silica Gel B type" (average particle size 5-30 mesh), Fuji Silica Gel RD type (average particle size 5-30 mesh),
"Fuji silica gel ID type" (average particle size 5 to 30 mesh): each was added to Fuji Silysia Chemical Ltd.> at 1% by weight to obtain a sandy material for treating animal excrement (sandy matter) 15-18). For comparison, crushed coconut shell activated carbon <product name “Non-Smell” manufactured by Shiramoto Co., Ltd.> (sandy material 19) and natural sand (sandy material 20) were used as deodorizing sandy materials. Was prepared.

(2) Odor control test Ammonia and acetic acid were prepared as odorous substances. Ammonia was generated by dropping a 10% sodium hydroxide solution into a 10% ammonium chloride solution, dehumidified through a column filled with potassium hydroxide, and pumped into a 20 liter Tedlar bag. Acetic acid was injected into a 20-liter Tedlar bag in an appropriate amount, then air was blown in, and allowed to stand at room temperature to evaporate.

Sands 15-18 and Sands 19, 20
Is dried at 140 ° C. for 1 hour each, and 2 g each
Each was placed in a 5 liter Tedlar bag. A certain amount of air and ammonia gas or a certain amount of air and acetic acid gas were fed therein, and the 5-liter Tedlar bag was stored in a dark place. Thereafter, the concentration of the odorant was measured over time from 30 minutes to 48 hours using a gas detector tube, and was further converted to an adsorption rate for natural sand (sandy substance 20). Tables 2 and 3 show the results of ammonia adsorption and acetic acid adsorption, respectively. 1 and 2 show changes with time in the adsorption rates of ammonia and acetic acid, respectively.

[0035]

[Table 2]

[0036]

[Table 3]

As is clear from Table 2 and FIG.
All of 5 to 18 adsorb a large amount of ammonia more quickly than sandy substances 19 and 20. From this, it can be seen that sandy substances 15 to 18 are superior to natural sands, activated carbon compounds and the like for eliminating ammonia odor. In addition, cracks were observed in the sand-like material 15 after the adsorption. Further, the sand-like material 17 was finely broken after the adsorption. Such a change in shape was not observed in the sand-like materials 16 and 18. For the treatment of domestic animal excrement, there is no problem if cracks or the like occur, but if such a change is not desired, B-type or ID-type silica gel may be used.

Further, as is apparent from Table 3 and FIG. 2, almost all of the sand-like materials
Adsorb a large amount of acetic acid more quickly. In addition, sandy material 1
No. 9 had almost the same adsorption performance as that of the sandy substances 15 to 18. From the above, it can be seen that the sandy substance for treating domestic animal excrement of this example has excellent deodorizing performance.

(3) Insecticidal Test 10 g of the above sandy substance 16 (mixture of 1% by weight of antibacterial silica gel particles in B-type silica gel) is placed in 1 liter of water, and further a dog containing mature larvae Roundworm eggs were placed and contacted at 27 ° C. for 1 week. For comparison, B-type silica gel (sand-like material 21) in which no antibacterial silica gel fine particles were mixed was prepared, and a similar test was performed. Thereafter, each roundworm egg was extracted and crushed, and the life and death of the larva were confirmed with a microscope. Table 4 shows the test results.

[0040]

[Table 4]

As apparent from Table 4, it was found that the sandy substance 16 had a killing ability against roundworm eggs. Therefore, the use of the sandy substance for treating domestic animal excrement of this embodiment is expected to prevent the occurrence of roundworm and the like.
A similar effect can be expected for roundworm eggs of pigs and cats. Excretion of livestock raised by farmers can be used as sand for excrement disposal of pets raised in ordinary households. It can also be used as sand for material processing. Sandy materials used for home use may be disposed of as noncombustible garbage after use, and there is no problem if they are buried in landfills. Sandy materials used in large amounts in livestock barns and the like can be sprayed on fields as compost or soil improvement materials.

[Example 3] In addition to the antibacterial silica gel fine particles prepared in the same manner as in Example 1, papermaking sludge,
Mix water-absorbing polymer and silica gel fine particles. Papermaking sludge is waste generated in the process of papermaking, is mainly composed of pulp, and contains 50 to 70% by weight of water. The water-absorbing polymer is a commercially available water-soluble compound such as polyvinyl alcohol and carboxymethyl cellulose or a polymer absorber. Silica gel particles have an average particle size of 30μ
m, a surface area of 400 m ² / g, and physical properties of 99.5% by weight or more of SiO ₂ .

These components were mixed at a ratio of 1% by weight of antibacterial silica gel particles, 70% by weight of papermaking sludge, 5% by weight of water-absorbing polymer, and 24% by weight of silica gel particles. Further, this mixture and water are mixed at a ratio of 6: 4,
The mixture was sufficiently stirred using a stirrer to form mud. Then, the mud is formed into a thin rod shape, and further, the length is 10 to 2 mm.
It was cut to 0 mm. And further, it granulated by a vibrator and dried it. As a result, the average particle diameter was 5-30.
A sandy material having a particle size of about a mesh was obtained.

When the sandy matter for treating domestic animal excrement prepared as described above is used, the excrement of the animal is sufficiently absorbed, the odor is not diffused, and the animal is clean. In addition, because it uses paper sludge that is disposed of as waste, it can be manufactured at low cost and is lighter than natural sand, so it is extremely portable, and can be disposed of as general waste and disposed of by incineration. .

Example 4 (1) Preparation of Sandy Material for Sandbox In addition to the antibacterial silica gel fine particles prepared in the same manner as in Example 1, a small amount of an organic or inorganic binder was added and mixed in a muddy state. In addition, polyethylene, polypropylene, etc. can be used as an organic binder. As the inorganic binder, MgO, Al ₂ O ₃ , zeolite, terra alba, diatomaceous earth, or the like can be used.

Next, it was extruded by a molding machine equipped with dies having extrusion holes of various shapes, and was finely cut and dried. As a result, various shaped sands such as tablets, stars, rounds, squares, and triangles were obtained. (2) Coloring of Sand-like Material The sand-like material was colored in various colors by the following method.

First, Ingrain Blue 5
[Ingrain Blue 5] (C dye manufactured by Chuo Gosei Chemical Co., Ltd.)
1 g is dissolved in 1000 g of ethanol, and 500 g of the sand-like material prepared in the above (1) is immersed in the solution for 5 minutes.
Bring to 90 ° C. Thereafter, when the sand was removed, the sand could be dyed blue. The sandy substance did not release the pigment even when it came into contact with water.

Second, Basic Yellow 21 [Bas
ic Yellow 21] (Fahrenfabriken Buyer
A. G. FIG. [Astrazon Yellow 7GLL] 1 manufactured by [Farlenfabriken Bayer AG]
g of ethanol in 100 g of ethanol, and the solution is dissolved in 100 K of water.
g), and add the sandy substance 5 prepared in (1) above to the solution.
Then, 00 g was immersed for 3 minutes, and then the sand was pulled out and washed with 1000 g of running water at normal temperature. As a result, the sand was dyed yellow. The sandy substance did not release the pigment even when it came into contact with water.

Third, Basic Red 46 [Basic
Red 46] (Maxilon Red GRL200% [Maxilon Red GRL200%] manufactured by CIBA-GEIGY)
1 g is dissolved in 100 g of ethanol, and the solution is dissolved in 100 g of water.
The mixture was diluted with Kg, and 500 g of the sandy substance prepared in the above (1) was immersed in the liquid for 3 minutes.
Rinse with 1000 g of running water at 0 ° C. As a result, the sandy substance could be dyed red, and the pigment did not flow out even when it came into contact with water.

Fourth, using 1 g of Maxilon Brilliant Green 3G (manufactured by CIBA-GEIGY), the sand prepared in (1) above in the same manner as in the third procedure. The material was colored. As a result, the sandy substance could be dyed green, and the pigment did not flow out even when it came into contact with water.

Fifth, Basic Red 1 [Basic R
ed 1] (Rhodamine 6GCP manufactured by Taoka Chemical Industry Co., Ltd.)
[Rhodamin 6GCP]), 1 g of the sandy substance prepared in (1) was colored in the same manner as in the third procedure. As a result, the sandy substance could be dyed pink, and the pigment did not flow out even when it came into contact with water.

Sixth, Basic Violet 1
[Basic Violet 1] (Methyl Violet Super RB con
c]) Using 1 g, the sandy substance prepared in (1) above was colored in the same manner as in the third procedure. As a result, the sandy substance could be dyed purple, and the pigment did not flow out even when it came into contact with water.

Even if the sandy material prepared as described above is used, propagation of various germs is suppressed and a clean and safe sandbox is obtained. In addition, since a sandbox composed of sand grains having various shapes and colors can be constructed, it is possible to make the sandbox unique and unprecedented, so that children can enjoy playing with the sand. Moreover, since the pigment does not flow out even when washed with water, discoloration can be suppressed even in a sandbox exposed to rain,
Also, there is no coloring on children's clothing. In addition, each shape and color of the sandy material can be appropriately combined,
For example, the sandbox may be a sandbox that images the sea with a single color of blue, or a sandbox that mixes various colors to image a rainbow.

Although several embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various embodiments can be adopted without departing from the gist of the present invention.
For example, in the examples, silica gel fine particles were used as the carrier of the antibacterial substance, but silica gel having a large sand particle may be used as the carrier. In this case, the silica gel can be used as it is as a sand particle-sized antibacterial particle without performing molding or the like. .

In the examples, examples of adding antibacterial particles to natural sand or silica gel (Examples 1 and 2) and examples of forming and processing antibacterial particles (Examples 3 and 4) are shown. These natural sands, silica gel, molded particles and the like may be mixed at an appropriate ratio to obtain a sand-like material. Natural sand is
As it is available at a lower price than others, it contributes to the cost reduction of the whole sand-like material, silica gel contributes to the improvement of the deodorization performance and dehydration performance, and the above-formed particles contribute to the improvement of the water absorption performance. I do. Therefore, an appropriate compounding ratio can be selected according to an application such as for a sandbox or for treating domestic animal excrement, and so that a price that meets market needs can be set.

Further, in Example 3, particles having both antibacterial properties and water absorbency were formed. However, the addition of the antibacterial particles as in Example 1 to the particles having only water absorbency can be carried out. 3 A sandy material having the same performance is obtained. More specifically, for example, a composition containing at least one selected from silica gel, papermaking sludge, and a water-absorbing polymer is formed into sand-sized particles to form water-absorbing particles, which are mixed with antibacterial particles to form a sand-like material. You should get

[0057]

As described above, according to the present invention, germs do not propagate on sand-like substances and roundworm eggs can be killed.
Sand can be kept very clean. Therefore, when the sand is used as sand for a sandbox, there is no risk of infecting children with various bacteria. In addition, when used as sand for treating domestic animal excrement, it is not unsanitary even if it is installed indoors, and there is no fear that the resident may be infected with germs and the like. In particular, dehydration with silica gel
Since it also has a deodorizing effect, excrement is easily solidified, and foul odors are also adsorbed, so that it is extremely suitable for being installed indoors. Furthermore, if the sandy substance becomes dirty, there is no risk of polluting the environment even if it is buried, so that it can be disposed of as non-combustible waste, or can be effectively used as compost or soil improvement material.

Among them, the sandy material according to claim 3 or 6 is excellent in deodorizing performance and water absorbing performance, and therefore is particularly suitable for treating animal excrement, and contains incinerable components such as paper sludge. Those containing a large amount can be disposed of as normal burning garbage.

Further, the sand-like material according to the second aspect can be manufactured relatively easily and can be provided at a low cost. Also for the sandy material according to the fifth aspect , the overall cost can be kept low and the sandy material can be provided at low cost. Furthermore, since the antibacterial substance of the third or fourth aspect of the present invention has no volatility, the antibacterial effect can be maintained for a long time. In particular, the sandy material according to the fourth aspect is desirable because of its excellent antibacterial performance.

In addition, according to the sandy material according to the seventh or eighth aspect, a sandy material having a high added value, which is completely different from the conventional one due to a shape and a color different from natural sands.

[Brief description of the drawings]

FIG. 1 is a graph showing the ammonia adsorption performance of a sand-like material of an example in terms of the adsorption rate to natural sand.

FIG. 2 is a graph showing the acetic acid adsorption performance of a sandy substance of an example in terms of an adsorption rate to natural sand.

──────────────────────────────────────────────────の Continued on the front page (72) Inventor Atsushi Nishino 1006 Kazuma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. In-company (56) References JP-A-6-192021 (JP, A) JP-A-2-306904 (JP, A) JP-A-8-3009 (JP, A) (58) Fields studied (Int. . ^7, DB name) A01N 25/08 A01K 1/015 A01N 25/12

Claims (9)

(57) [Claims] Claims: 1. A papermaking sludge comprising a silica gel carrying at least an antibacterial substance,
A sandy material for a sandbox or for treatment of excrement of domestic animals, wherein the sandy material is composed of an antibacterial particle containing at least one selected from limers and partially or wholly. 2. A sandy material for a sandbox or for treatment of domestic animal excrement as set forth in claim 1 , wherein said antibacterial particles are composed of sand-sized silica gel carrying said antibacterial substance. Sandy material for sandboxes or for treatment of domestic animal excrement. 3. The sandy substance for a sandbox or for treating domestic animal excrement as set forth in claim 1 or 2 , wherein said antibacterial substance is at least one salt selected from silver, copper and zinc. Alternatively, a sandy material for a sandbox or for treating excrement of domestic animals, comprising a complex salt. 4. The sandy substance according to claim 3 , wherein the antibacterial substance is a silver thiosulfato complex, wherein the antibacterial substance is a silver thiosulfato complex. Sandy objects. 5. The sandy material for a sandbox or for treating domestic animal excrement according to any one of claims 1 to 4 , wherein natural sand is added in addition to the antibacterial particles. A sandy material for a sandbox or for treating excrement of domestic animals. 6. The sandy material for a sandbox or for treating domestic animal excrement according to any one of claims 1 to 5 , wherein in addition to the antibacterial particles, silica gel, papermaking sludge, and a water-absorbing polymer are used. A sandy material for a sandbox or for treating domestic animal excrement, which is added with a composition containing at least one selected material formed into a sand particle size. 7. The sandy material for a sandbox or for treating domestic animal excrement according to any one of claims 1 to 6 , wherein the sand-sized particles are formed into a predetermined shape. A sandy material for a sandbox or for the treatment of domestic animal excrement. 8. The sandy material for a sandbox or for treating domestic animal excrement according to any one of claims 1 to 7 , wherein the sand-sized particles are colored in a predetermined color. A sandy material for a sandbox or for the treatment of domestic animal excrement. 9. A silica-supported silver thiosulfato complex salt.
Antibacterial particles with antibacterial properties provided by Kagel.
Is a sandy material for a sandbox or for treating animal excrement, the whole being constituted .