JPH08119802A - Sandy material for sand pool or for treating excreta of reared animal - Google Patents

Abstract

PURPOSE: To obtain a sandy material for a sand pool or for treating excreta of reared animals capable of being used cleanly and safely and enhancing deodorizing effect. CONSTITUTION: This sandy material is prepared by adding antibacterial particles carrying thiosulfatosilver complex on silica gel to natural sand and silica gel particles, or further mixing with a paper sludge, a water absorbing polymer, silica gel, etc., and shaping the mixture into particles having a sand particle size, or adding antibacterial particles to the water absorbing particles of the mixture of a paper sludge, a water absorbing polymer, silica gel, etc., shaped in a sand particle size. The increase of various germs is inhibited by the silver complex. Further, owing to dehydrating action of silica gel, roundworm eggs are killed. Thus, a sand pool can be kept highly hygienic. This material is well suited for treating excreta of reared animals as bad smells are prevented by deodorizing action of silica gel and water absorption is increased when the paper sludge or the water absorbing polymer is used as the components.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sandbox used for a sandbox in a park or for defecation of animals raised indoors or for treating excrement of breeding animals.

[0002]

2. Description of the Related Art Conventionally, sandboxes have been installed in various public facilities such as parks, schools, kindergartens and playgrounds for children to play or for competition. Natural sand is used as is as the sand in this sandbox.

In addition, at home where small animals such as dogs and cats are kept indoors, a sand box is installed as a toilet for animals,
Therefore, I try to have bowel movements. Sand used in such a sand box is, in addition to natural sand, in order to improve water absorption and deodorization especially for excrement treatment, for example, zeolite,
A sandy product containing sodium silicate foam, activated carbon, etc. is also commercially available.

[0004]

However, according to the prior art, the sand used in the sandbox of the public facility is not disinfected at all and is left exposed to acid rain, dust, dust, etc. , There is a possibility that roundworm eggs may be present due to soiling of manure of birds, dogs and cats. Therefore, various pathogenic bacteria and various bacteria are present in the sand, and the sandbox is in an extremely unsanitary state.If a child plays in the sandbox in such a sandbox, various diseases may occur. It was a very serious hygiene problem.

Regarding sand used in animal toilets, there is a high possibility that bacteria and roundworm eggs will be present in the sand more than the sand in the sandbox, and a sand box containing such unsanitary sand. The fact that it was installed inside the house was still a serious problem from a hygiene perspective. Furthermore, although ammonia odors and the like are inevitably emitted from sand animal wastes, natural sand has almost no deodorizing effect, and even artificial sandy substances containing activated carbon or the like have sufficiently satisfactory deodorizing effects. Because there is no
There was also a problem that a bad odor drifted inside the house, making the living environment uncomfortable.

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 for treating excrement of domestic animals, which can improve the deodorizing effect.

[0007]

In order to achieve the above-mentioned object, the sandy material for sandbox or for treating excrement of domestic animals of the present invention comprises an antibacterial substance as described in claim 1. A part or all of the antibacterial particles are provided with antibacterial properties by the supported silica gel.

According to the sandy material of the present invention, since the antibacterial particles constituting a part or the whole are imparted with the antibacterial property by the silica gel carrying the antibacterial substance, reproduction of fungi is suppressed, The generation of putrid odor due to the reproduction of fungi is also prevented. In addition, silica gel not only acts as a carrier for supporting an antibacterial substance, but also has an action of absorbing water, so that the entire sandy matter is dried, 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 promote solidification of the excrement, and at the same time, a malodorous component such as ammonia is adsorbed to suppress the generation of malodor. In addition, silica gel contains acid rain and harmful components in the atmosphere, such as SO ₂ ,
Since it also has a function of adsorbing NO _x , CO, etc., it is also useful for purifying rain and air and preventing 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 property. The mixing ratio of the antibacterial particles to the whole may be appropriately adjusted within a range in which the sandy material can maintain an effective antibacterial effect as a whole according to the strength of the antibacterial activity of the antibacterial substance, for example, the difference in application and the cost. It is determined by the trade-off, etc.

The antibacterial particles themselves are mainly composed of silica gel carrying an antibacterial substance, and the antibacterial substance is supported on the silica gel particles. Fine particles may be further mixed with other components, and the mixture may be made into particles.

More specifically, for example, as described in claim 2, the antibacterial particles are at least one selected from silica gel particles, papermaking sludge, and water-absorbing polymer.
It is preferable that a composition containing seeds and fine particles of silica gel carrying the above-mentioned antibacterial substance is molded into a sand grain size.

[0012] The size of the sand grains referred to here may be such that they are not as rough as pebbles and do not scatter like powder, but if a particularly desirable range is specifically shown, grains of about 5 to 30 mesh Is the diameter. The fine particles may be in the form of powder so that they can be uniformly mixed, but if a particularly desirable range is specifically shown, the average particle size is about several μm to several hundreds μm.

According to the sand-like material of the present invention, the antibacterial particles are at least one selected from silica gel particles supporting the antibacterial substance, silica gel particles, paper-making sludge, and water-absorbing polymer. Since it is a composition containing seeds, it is superior in deodorization performance and water absorption performance to a composition containing silica gel supporting an antibacterial substance as a single component. Therefore, it is particularly suitable for treating excrement of domestic animals.

The blending ratio of each of the above components may be determined in consideration of the application and cost, but mainly silica gel fine particles are used to increase the deodorizing performance, and papermaking sludge or water absorbing water is used to improve the water absorbing performance. It is better to add a large amount of polymer. Comparing papermaking sludge and water-absorbent polymer,
Although water-absorbent polymers are superior in terms of water-absorbing performance, paper-making sludge has a correspondingly high water-absorbing property, and moreover, paper-making sludge is a pulp component that is generated as waste during paper-making, so it is extremely inexpensive, Lightweight and easy to mold,
Considering the manufacturing cost, the utility value is great. The water-absorbing polymer may be any of those commonly used in commercially available paper diapers and the like, and examples thereof include polyvinyl alcohol, acrylonitrile graft-polymerized with starch, acrylic acid-vinyl alcohol copolymer, and other polyacrylics. An acid type or polyoxyethylene type may be used. In addition, if a more specific desirable mixing ratio is shown, for example, for treating 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 polymers
When mixed in an amount of -40% by weight and molded into a particle size of 5-30 mesh, it is relatively inexpensive and has excellent water absorption.

In addition to the sand-like material according to claim 2, for example, as described in claim 3, the antibacterial particles may be formed of sand-grain-sized silica gel carrying the antibacterial substance. According to the sandy material of the third aspect, the silica gel itself as the carrier for the antibacterial substance is made to have a large grain size, and in addition to the deodorizing action / dehydrating action of the silica gel, the antibacterial action of the antibacterial substance is obtained. Therefore, the desired sand-like material can be easily obtained only by producing silica gel having a large grain size and supporting the antibacterial substance.

By the way, as the antibacterial substance, organic compound-based substances and plant extracts are also known, but there is a problem that the effect is difficult to last because of their relatively high volatility. In this respect, as described in claim 4, it is preferable that the antibacterial substance comprises at least one salt or complex salt selected from silver, copper and zinc. Particularly, as described in claim 5, it is preferable that the antibacterial substance is a silver thiosulfato complex salt.

According to the sandy material of the fourth aspect, since it is not volatile, the antibacterial effect lasts for a long time, and there is no concern that the volatile component will be inhaled by the human body. In particular, the sandy material according to the fifth aspect is desirable because it can obtain a strong antibacterial activity even in a small amount as compared with other metal salts and the like. The amount of the antibacterial substance to be carried is weak unless the amount exceeds a certain level,
If the amount is large, the effect will be correspondingly high, but if a certain amount of effect can be obtained, an excessive amount will be disadvantageous in cost. The effective supported amount varies depending on the strength of the antibacterial substance and the desired duration of the antibacterial property, so it cannot be said unequivocally, but as a guide, for example, in the case of thiosulfato silver complex salt, it is converted to silver weight to give 0 When 0.055 wt% of silica gel is supported on silica gel, an appropriate effect is obtained and it is realistic from the viewpoint of cost.

When a part of the sand-like material is composed of antibacterial particles, the remaining particles having no antibacterial property can have the following structure. That is, as described in claim 6, natural sand may be added in addition to the antibacterial particles.

With such a construction, the sandy material can be made inexpensive as a whole, and thus it is suitable for use in a large amount for a sandbox or the like. In this case, since the sand-like material may be sand-like as a whole, the particle size of the antibacterial particles does not scatter even if they are fine particles as well as those having a large sand particle size. So there is no problem. Further, the mixing ratio of the antibacterial particles cannot be unequivocally described, but as a guide, for example, a thiosulfato silver having a particle diameter of 3 to 20 μm (average of about 4 μm) and 1 to 5% by weight (average of about 3% by weight). If the antibacterial silica gel carrying the complex salt is added in an amount of 0.05 to 5% by weight based on the natural antibacterial sand, an appropriate effect can be obtained. Here, if it is less than 0.05% by weight, sufficient antibacterial property may not be maintained, while if it is more than 5% by weight, sufficient antibacterial property is already present, which is disadvantageous in terms of cost.

Further, as described in claim 7, in addition to the antibacterial particles, a composition containing at least one selected from silica gel, paper-making sludge, and water-absorbing polymer and molded into a sand grain size is added. May be. With such a configuration, the entire sand-like material can be made highly absorbent, which is suitable for treating animal excrement.

Furthermore, in addition to the above-mentioned antibacterial particles,
It is also possible to add silica gel particles. in this case
Also, the dehydrating and deodorizing effects are improved, and various germs and roundworm eggs are removed.
It has the effect of killing and absorbing bad odor. here
As the silica gel used in, specifically, A type, B type
Type, RD type, ID type silica gel can be used
Crushed or spherical, particle size 0.001-5m
m, surface area 200 to 800 m ²/ G, pore volume 0.3 to
1.0 ml / g, average pore diameter 20 to 1000 angs
Trohm, specific heat 0.2 ~ 0.4kcal / kg ℃, heat transfer
Conductivity 0.15-0.04kcal / m ・ hr ・ ° C, pH
5.0-8.0, Water content 8.0% by weight or less, SiO₂To
With silica gel having a physical property of 99.5% by weight or more
If it is, it can be easily manufactured industrially and sufficient effect can be obtained.
You.

Particles to be added in addition to these antibacterial particles may be blended in an appropriate ratio according to the use. For example, a sand-like substance for a sandbox is something which is directly brought into contact with children's hands and is excessively dehydrated. Since raising the performance may cause rough hands, it is better to mix some particles such as natural sand that have no dewatering ability to some extent. Also, for the treatment of excrement of domestic animals, it is better to absorb and solidify the water from the excrement promptly, there is a high possibility that various bacteria and roundworm eggs will be present, and malodorous components will increase, so it is water absorbing and antibacterial. ， The higher the deodorizing property, the better.

By the way, in the sand-like material of the present invention, which is subjected to molding processing, the particles having the large size of the sand particles may be molded 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 that makes an image of a silhouette of an animal or the like. It is the shape. Incidentally, various molding methods are conceivable, but in order to produce a large amount of particles as a sand-like material, one extruded and molded into a predetermined shape,
A method of cutting finely is convenient.

By using such a sandy material for a sandbox, a unique sandbox completely different from natural sand can be created, and children can enjoy playing in the sand. In addition, in the case of treating excrement of domestic animals, for example, if it is formed into a shape that gives an image of a silhouette of a cat, it can be characterized as sand for cats, and it becomes a sandy product with high added value.

Further, as described in claim 9, the particles having the size of the sand particles may be colored with a predetermined color. If such a sandy material is used for a sandbox, a unique sandbox completely different from natural sand can be created, and children can enjoy playing in the sand. In addition, if it is used for treating excrement of domestic animals, for example,
You can select a sand-like object with a color that matches the interior, and it looks good when installed in a house. Various coloring methods can be considered, but it is preferable that the coloring is not easily discolored, and especially for sandboxes, coloring that does not color children's clothes is desired. Also, while molding into a predetermined shape,
Those colored with a predetermined color are particularly desirable.

[0026]

The present invention will be described in detail below with reference to preferred examples. 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 to add 40 to 50.
Stir for about 5 minutes at ° C. Then, it filtered with filter paper (No. 2) and the undissolved silver acetate was removed. To the solution thus obtained, 2.0 g (7.9 × 10 ⁻³ mol) of sodium sulfite was added with stirring. Add sodium sulfite and stir until the cloudy white solution becomes clear, then add 1.32 g (5.3 × 10 ⁻³ mol) of sodium thiosulfate and stir, and further add silica gel <Product name “Sylysia #
550 "(average particle size 2.8 μm):> 5 g manufactured by Fuji Silysia Chemical Ltd. was added and stirred for 10 minutes to allow silica gel to support a sodium thiosulfato silver complex salt. Then, the mixture of this sodium thiosulfato silver complex salt solution and silica gel was placed in a rotary evaporator <Product name “Rotary evaporator RE47”: manufactured by Yamato Scientific Co., Ltd.> and a solvent component was added at a temperature of 60 ° C. and about 3000 Pa or less. It was removed by evaporation. Then, the obtained silica gel was further vacuum dried for 12 hours at a temperature of 60 ° C. and a pressure of about 3000 Pa or less by a vacuum dryer.

(2) Preparation of sandy material for sandbox Using the antibacterial silica gel prepared in (1) above, natural sand (silica sand) or silica gel particles <product name “Fuji Silica Gel B type” (average particle size 5 to 5) 30 mesh): manufactured by Fuji Silysia Chemical Ltd.> to obtain a sandy product for sandbox. It should be noted that antibacterial silica gel was added to natural sand in an amount of 0.
Addition of 03% by weight, 0.05% by weight, 0.5% by weight, 1.0% by weight, 3.0% by weight, 5.0% by weight (sandy substances 1 to 6), to silica gel particles, Antibacterial silica gel added with 0.03 wt%, 0.05 wt%, 0.5 wt%, 1.0 wt%, 3.0 wt% and 5.0 wt% respectively (sand 7-12 ) Was prepared. For comparison, natural sand (sandy substance 13) and silica gel particles (sandy substance 14) to which antibacterial silica gel was not added were prepared.

(3) Antibacterial test Escherichia coli was cultivated at 37 ° C. and 90% R. H. After culturing for 24 hours in the above atmosphere, the cells were suspended in sterile phosphate-buffered physiological saline, and the cells were suspended at about 10 ⁶ C. F. U. (Colony forming unit) / ml was diluted and prepared. 10 g of the sand-like substances 1 to 8 were added to 100 ml of a normal broth medium having a concentration of 1/50, and 0.1 ml of the bacterial solution was added dropwise, followed by 37 ° C. and 90% R.I. H. It was stored under the above atmosphere. And after 0 hours, 6 hours, 24 hours,
1 ml of the bacterial solution was collected and added dropwise to another petri dish, and the pour plate culture method using ordinary agar medium (37 ° C, 1
C. per 1 ml. F. U. Converted to a value. The number of trials is 2. The test results are shown in Table 1.

[0029]

[Table 1]

As is clear from Table 1, the reproduction of Escherichia coli was 1/100 times that of silica sand alone and silica gel alone.
It could be suppressed to about 1000. In other words, it can be seen that the sandy material for sandbox of this example has excellent antibacterial performance. Further, 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 in antibacterial property, but the addition of 0.05% by weight or more provides excellent antibacterial property.

Therefore, if the sandy material of this embodiment is used as sand for a sandbox, it is possible to keep the sandbox in a clean state without any fear of bacteria on the limbs even when a child plays in the sand.
Although silver was used as the antibacterial substance in this example,
It is known that copper and zinc also have antibacterial properties. The antibacterial properties decrease in the order of silver, copper, and zinc, but the raw material price also decreases in the same order, so the addition amount can be increased even at the same cost, and the antibacterial activity of the sand as a whole is about the same. can do. Therefore, copper or zinc may be used instead of silver.

[Example 2] (1) Preparation of sand-like material for treating excrement of domestic animals The antibacterial silica gel particles prepared in the same manner as in Example 1 above were prepared using four kinds of silica gel particles <product name "Fuji Silica Gel A". Shape "(average particle size 5 to 30 mesh)," Fuji Silica Gel B type "(average particle size 5 to 30 mesh), Fuji Silica Gel RD type (average particle size 5 to 30 mesh),
"Fuji Silica gel ID type" (average particle size 5 to 30 mesh): All were added to Fuji Silysia Chemical Ltd.> 1% by weight to obtain a sandy material for treating animal excrement (a sandy material). 15-18). In addition, for comparison, a crushed coconut shell activated carbon <product name “NONSUMEL”: manufactured by Shiramoto Co., Ltd.> (sandy substance 19) and natural sand (sandy substance 20) as deodorant sandy substance Prepared.

(2) Deodorizing test Ammonia and acetic acid were prepared as odor 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. An appropriate amount of acetic acid was injected into a 20 liter Tedlar bag, air was then introduced, and the mixture was left at room temperature to be vaporized.

Sandy materials 15-18 and sandy materials 19, 20
Is dried at 140 ° C for 1 hour and 2g each
Each was placed in a 5 liter Tedlar bag. A fixed amount of air and ammonia gas, or a fixed amount of air and acetic acid gas were fed thereinto, and the 5 liter Tedlar bag was stored in a dark place. Then, the odor substance concentration was measured with time using a gas detector tube from 30 minutes to 48 hours, and further converted into an adsorption rate for natural sand (sandy material 20). The results of adsorption of ammonia and acetic acid are shown in Tables 2 and 3, respectively. In addition, changes in the adsorption rates of ammonia and acetic acid with time are shown in FIGS. 1 and 2, 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 the sand-like substances 19 and 20. From this, it can be seen that the sand-like substances 15 to 18 are superior in eliminating the ammonia odor, as compared with natural sand, activated carbon compounds, and the like. The sandy material 15 was observed to be cracked after the adsorption. Further, the sandy material 17 was finely cracked after the adsorption. Such a change in shape was not observed in the sandy material 16 and the sandy material 18. For treating excrement of domestic animals, there is no problem even if cracks etc. occur, but if such changes are not desired, B type or ID type silica gel may be used.

Further, as is clear from Table 3 and FIG. 2, all of the sandy materials 15 to 18 are almost the same as the sandy material 20.
Adsorbs a large amount of acetic acid more quickly. In addition, sandy material 1
No. 9 had almost the same adsorption performance as the sand-like substances 15-18. From the above, it can be seen that the sandy material for treating excrement of domestic animals of this example has excellent deodorizing performance.

(3) Insecticidal test 10 g of the sandy matter 16 (B-type silica gel mixed with 1% by weight of antibacterial silica gel particles) was placed in 1 liter of water, and a dog containing a matured larva was stored. The roundworm eggs were put in and contacted at 27 ° C. for 1 week. For comparison, B-type silica gel (sand 21) without antibacterial silica gel particles was prepared and the same test was conducted. After that, each roundworm egg was extracted and crushed, and the life and death of the larvae were confirmed with a microscope. The test results are shown in Table 4.

[0040]

[Table 4]

As is clear from Table 4, the sandy material 16 was found to have a killing ability against Ascaris suum eggs. Therefore, it is expected that the use of the sand-like material for treating excrement of domestic animals in this example will prevent the occurrence of roundworms and the like.
Since the same effect can be expected on roundworm eggs of pigs and cats, etc., even as sand for treating excrement of pet animals raised in general households, excretion of livestock raised by farmers It can also be used as sand for material processing. Sandy materials used for household purposes may be disposed of as non-combustible waste after use, and can be buried in landfills without any problem. In addition, sandy materials used in large amounts in livestock sheds and the like can be applied to fields as compost and soil conditioners.

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

Each of these components was mixed in a proportion 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 were mixed at a ratio of 6: 4,
The mixture was thoroughly stirred using a stirrer to form a mud. Then, the mud-like material is formed into a thin rod shape, and further, this is made to have a length of 10 to 2
It was cut to 0 mm. Further, as a result of further granulating with a vibrator and drying it, an average particle size of 5 to 30 is obtained.
A sand-like material having a uniform particle size of a mesh was obtained.

When the sand-like material for treating excrement of domestic animals prepared as described above is used, the excrement of animals is sufficiently absorbed, and the odor is not diffused, and the excrement is clean. In addition, since it uses papermaking sludge that is disposed of as waste, it can be manufactured at a low cost, and because it is lighter than natural sand, it is extremely easy to carry and can be disposed of as general waste and incinerated. .

[Example 4] (1) Preparation of sandy material for sandbox In addition to the antibacterial silica gel 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 mud form. As the organic binder, polyethylene, polypropylene or the like can be used. As the inorganic binder, MgO, Al ₂ O ₃ , zeolite, white clay, diatomaceous earth or the like can be used.

Next, extrusion molding was carried out by a molding machine equipped with dies having extrusion holes of various shapes, and the material was finely cut and dried. As a result, various sand-shaped materials such as tablets, stars, circles, squares, and triangles were obtained. (2) Coloring of Sandy Material The sandy material was colored in various colors by the following method.

First of all, Ingrain Blue 5
[Ingrain Blue 5] (C dye manufactured by Chuo Gosei Kagaku Co., Ltd.)
1 g was dissolved in 1000 g of ethanol, and 500 g of the sand-like material prepared in (1) above was immersed in the solution for 5 minutes, and then the sand-like material was pulled up and put in 1000 g of water to obtain 80-
Bring to 90 ° C. After that, when the sandy material was taken out, the sandy material could be dyed blue. The pigment did not flow out from this sandy material even when it contacted with water.

Secondly, Basic Yellow 21 [Bas
ic Yellow 21] (Astrazon Yellow 7GLL [Astrazon Yellow 7GLL] manufactured by Farlenfabriken Bayer AG)
1 g is dissolved in 100 g of ethanol and the solution is mixed with 100 parts of water.
The mixture was diluted with Kg, and 500 g of the sand-like material prepared in (1) above was immersed in the solution for 3 minutes, and then the sand-like material was pulled up and washed with 1000 g of running water at room temperature. As a result, the sandy matter was dyed yellow. The pigment did not flow out from this sandy material even when it contacted with water.

Third, Basic Red 46 [Basic
Red 46] (Shiva-GEIGY [CIBA-GEIGY] company made Maxilon Red GRL200% [Maxilon Red GRL200%])
1 g is dissolved in 100 g of ethanol and the solution is mixed with 100 parts of water.
Dilute with Kg, soak 500 g of the sandy matter prepared in (1) above for 3 minutes, and then pull up the sandy matter.
It was washed off with 1000 g of running water at 0 ° C. As a result, the sandy matter could be dyed red, and the dye did not flow out even when it contacted with water.

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

Fifth, Basic Red 1 [Basic R
ed 1] (Rhodamine 6GCP manufactured by Taoka Chemical Co., Ltd.
[Rhodamin 6GCP]) (1 g) was used to color the sand-like material prepared in (1) above in the same manner as in the above third procedure. As a result, the sandy matter could be dyed in pink color, and the dye did not flow out even in contact with water.

Sixth, the basic violet 1
[Basic Violet 1] (Methyl Violet Super RB con
c]) 1 g was used to color the sand-like material prepared in (1) above in the same manner as in the third procedure above. As a result, the sandy matter could be dyed purple, and the dye did not flow out even when it contacted with water.

Even when the sandbox-like sand material prepared as described above is used, the proliferation of various bacteria is suppressed, and the sandbox is clean and safe. In addition, in particular, since a sandbox made of sand grains having various shapes and colors can be constructed, the sandbox can be a unique sandbox that has never existed before, and children can enjoy playing in the sand. Moreover, since the dye does not flow out even when washed with water, fading can be suppressed even in a sandbox exposed to rain,
Also, it does not color children's clothing. In addition, each shape and color of the sandy matter can be appropriately combined,
For example, it can be a sandbox with the image of the sea in one blue color, or a sandbox with the image of a rainbow by mixing various colors.

Although some examples of the present invention have been described above, the present invention is not limited to these, and various modes can be adopted within the scope not departing from the gist of the present invention.
For example, although silica gel particles are used as the carrier for the antibacterial substance in the examples, sandstone-sized silica gel may be used as the carrier, and in this case, the particles can be directly used as the sand-sized antibacterial particles without being subjected to molding or the like. .

Further, in the examples, examples of adding the antibacterial particles to natural sand or silica gel (examples 1 and 2) and examples of molding the antibacterial particles (examples 3 and 4) have been shown. These natural sands, silica gel, shaped particles and the like may be mixed in an appropriate ratio to obtain a sandy material. Natural sand
Since it is available at a lower cost than others, it contributes to the cost reduction of the whole sandy material, silica gel contributes especially to the improvement of deodorizing performance and dehydration performance, and the above-mentioned shaped particles contribute to the improvement of water absorption performance. To do. Therefore, it is possible to select an appropriate blending ratio so that the price can be set according to the use such as for sandbox or for treating excrement of domestic animals, and so as to meet the needs of the market.

Furthermore, in Example 3, particles having both antibacterial properties and water absorption properties were molded. However, even if the antibacterial particles as in Example 1 were added to the particles having only water absorption properties, the particles of Example 3 were obtained. A sand-like material having the same performance as 3 is obtained. More specifically, for example, a composition containing at least one selected from silica gel, paper-making sludge, and water-absorbing polymer is formed into sand-sized particles to give water-absorbing particles, and antibacterial particles are mixed with the composition to form a sand-like material. Should get

[0057]

As described above, according to the present invention, various bacteria do not propagate on the sandy material and the roundworm eggs can be killed.
The sand can be kept very clean. Therefore, when used as sand for a sandbox, there is no concern that children will be infected with various bacteria. In addition, when it is used as sand for treating excrement of domestic animals, it does not become unsanitary even if it is installed in the house, and there is no concern that inhabitants will be infected with various bacteria. Especially dehydration with silica gel
Since it also has a deodorizing effect, excrement is easily solidified, and a bad odor is also adsorbed, which is extremely suitable for installation in a house. Furthermore, if the sandy matter becomes dirty, there is no concern that it will pollute the environment even if it is buried, so it can be disposed of as noncombustible waste, or it can be effectively used as compost or soil conditioner.

Among them, the sandy matter according to claim 2 or claim 7 is excellent in deodorizing performance and water absorbing performance, and is therefore particularly suitable for treating animal excrement, and incineratorable components such as papermaking sludge. Many of them can be disposed of as ordinary burning garbage.

Further, the sandy material according to claim 3 can be provided at a low cost because it can be manufactured relatively easily. The sand-like material according to claim 6 can also be provided at low cost because the overall cost can be kept low. Furthermore, since the sandy material according to claim 4 or claim 5 has no volatility of the antibacterial substance, the antibacterial effect can be maintained for a long time. In particular, the sandy material according to claim 5 is desirable because it has excellent antibacterial performance.

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

[Brief description of drawings]

FIG. 1 is a graph showing the ammonia adsorption performance of the sandy substances of Examples in terms of the adsorption rate to natural sand.

FIG. 2 is a graph showing the acetic acid adsorption performance of the sand-like substances of the examples by the adsorption rate with respect to natural sand.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Atsushi Nishino 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Toshikazu Tomioka, 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (9)

[Claims] 1. Sand for use in a sandbox or for treating excrement of domestic animals, characterized in that it comprises a part or all of antibacterial particles having antibacterial properties imparted by silica gel carrying an antibacterial substance. Thing. 2. The sandy material for a sandbox or for treating excrement of domestic animals according to claim 1, wherein the antibacterial particles are silica gel particles, papermaking sludge,
And at least one selected from water-absorbing polymers,
A sandy material for a sandbox or for treating excrement of domestic animals, which is obtained by molding a composition containing fine particles of silica gel carrying the antibacterial substance into a sandy grain size. 3. The sandy material for a sandbox or for treating excrement of domestic animals according to claim 1, wherein the antibacterial particles are made of silica gel having a grain size of the particles supporting the antibacterial substance. Sandy material for sandboxes or for treating animal excrement. 4. The sandy material for a sandbox or for treating excrement of domestic animals according to any one of claims 1 to 3, wherein the antibacterial substance is at least 1 selected from silver, copper and zinc. A sandy material for a sandbox or for treating excrement of domestic animals, which comprises a salt or a complex salt of a seed. 5. The sandy material for sandboxes or for treating excrement of domestic animals according to claim 4, wherein the antibacterial substance is a thiosulfato silver complex salt. Sandy matter. 6. The sandy material for sandboxes or for treating excrement of domestic animals according to any one of claims 1 to 5, wherein natural sand is added in addition to the antibacterial particles. A sand-like material for a sandbox or for treating excrement of domestic animals. 7. The sandy material for sandboxes or for treating excrement of domestic animals according to any one of claims 1 to 6, comprising silica gel, papermaking sludge, and water-absorbing polymer in addition to the antibacterial particles. A sandy material for sandboxes or for treating excrement of domestic animals, characterized in that a composition containing at least one selected from them is molded into a sandy grain size. 8. The sandy material for sandboxes or for treating excrement of domestic animals according to any one of claims 1 to 7, wherein the sand-sized particles are formed into a predetermined shape. A sandy material for a sandbox or for treating excrement of domestic animals. 9. The sandy material for sandboxes or for treating excrement of domestic animals according to any one of claims 1 to 8, wherein the sand-sized particles are colored in a predetermined color. A sandy material for a sandbox or for treating excrement of domestic animals.