JP2019004714A - Animal excrement treatment material - Google Patents

Abstract

To provide an animal excrement treatment material that is superior in deodorization characteristics after absorbing animal excrement (excreta), is inhibited from scattering when stirred in a container, and can be disposed of as a combustible material.SOLUTION: An animal excrement treatment material 20 includes a molded body containing (A) wood powder, (B) a chemical adsorbent and (C) an inorganic antibacterial agent in an amount of 60-95 mass%, 3-25 mass% and 2-20 mass%, respectively, when the sum total thereof is assumed as 100 mass%, and the bulk specific gravity of the molded body is 0.30-0.65, and the mass per one molded body is 0.05-0.50 g.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an excrement disposal material used in a toilet container for treating excrement (feces and urine) of an animal such as a cat kept at home.

Animals such as cats being bred have a habit of excreting urine at a predetermined location and are trained to do so. Therefore, the owner generally uses a tray or the like containing a granular excrement disposal material called “cat sand” as a toilet container, that is, a toilet bowl, in order to facilitate excrement disposal and recovery.
Conventionally, as excrement disposal materials, materials using minerals such as bentonite, silica gel, zeolite, coke, coffee grounds, okara, paper material, wood and the like are known. Among them, clay exhibiting water swellability such as bentonite is widely used as an excrement treatment material for pets because it can absorb urine and treat it as a solid matter.

  Patent Document 1 discloses a pet excretion absorbent comprising a bentonite molded product formed in a flat shape having a thickness of 3 mm or less. Patent Document 2 discloses an animal excrement absorbent comprising bentonite having a particle size of 50 μm to 8000 μm, to which a deodorizer and an antibacterial agent are added in an amount of 0.5 wt% to 5 wt%, respectively. It is disclosed. Patent Document 3 discloses a water-swellable clay component and a non-swelling pH of 4 or less measured at a concentration of 5% by weight using 1% saline in an amount that does not inhibit the water-swellability of the clay component. Disclosed is a cat sand characterized by containing a functional solid component. Patent Document 4 is characterized by comprising a water-swellable clay component and an acidic additive, and the acidic additive is spread and present on a part of the particles of the water-swellable clay component. A cat sand is disclosed.

Further, Patent Document 5 discloses a pet excreta treating agent in which granular zeolite having high adsorptivity is used instead of water-swellable clay, and an aromatic is supported on the granular zeolite.
However, since cat sand disclosed in Patent Documents 1 to 5 contains incombustible minerals, it cannot be discarded as combustible waste, and there is a problem that disposal after use is inconvenient. Therefore, cat sand containing materials that can be discarded as combustible waste has been proposed.

  For example, Patent Document 6 includes 60% by weight of tea husk, 20% by weight of sawdust, 10% by weight of one or more selected from paper powder, sludge or pulp, and 10% by weight of a binder and a water absorbing agent. A cat sand made of a molded product is disclosed. Patent Document 7 discloses an absorbent based on cellulose fibers, pulverized wood and clay minerals for absorbing liquids. Patent Document 8 includes a vegetable fiber component (1) as a main component, a plant binder component (2) made of starch, and a tea husk component (3) which is a remaining rice cake after putting tea. An animal manure treatment material having a constituent component, wherein the content percentage of the binder component relative to the total weight of the animal manure treatment material is sufficient to bond and foam the vegetable fiber component and the tea shell component to each other. There is disclosed an animal excrement disposal material characterized in that the animal excrement disposal material forms a foamable porous chip shape in a required amount. Patent Document 9 discloses a compressed body including first particles containing biomass raw materials and second particles containing different materials, and describes that this compressed body may be used as cat sand. ing.

JP 7-274756 A Japanese Patent Laid-Open No. 10-210875 JP 2009-86 JP JP 2009-87 A JP 2000-236766 A JP-A-6-7051 JP-A-7-817 JP 2003-116389 A JP 2012-528008 A

By the way, the cat has the habit of stirring the excrement disposal material after excretion in the toilet container in which the granular excrement disposal material is accommodated. For this reason, the excrement disposal material may jump out of the toilet container and be scattered. In addition, the excrement disposal material may be scattered after the cat goes out of the toilet container while a part of the excrement disposal material is sandwiched between the paws of the paws. Therefore, in order to spend hygienically with the cat, it was necessary to take the properties of the excrement disposal material and measures to prevent scattering.
Further, cat urine is known to emit malodors, and there has been a demand for excrement disposal materials with excellent deodorizing properties.
The subject of this invention is excellent in the deodorizing property after absorbing the excrement (feces and urine) of animals, such as a cat, the scattering at the time of stirring in a toilet container after excretion etc. is suppressed, and it discards as a combustible material. It is possible to provide an animal excrement disposal material.

The present inventors examined not only the deodorizing property after absorbing the excrement (feces and urine) of animals such as cats, but also the scattering to the outside of the toilet container and the disposal means after use. The treatment material has a weight that prevents cats from scattering even if they are swirled with their feet after excretion, a size that prevents them from getting caught between the cat's paws, and a moderate amount of bulk that can be easily transported and replaced in the toilet container. Therefore, it was found that a molded product mainly composed of a wood raw material and having specific physical properties can solve the above problem.
That is, the present invention is as follows.
1. (A) wood flour, (B) a chemical adsorbent, and (C) a material for treating animal excreta, including a molded article containing an inorganic antibacterial agent,
The content ratios of the components (A), (B) and (C) contained in the molded body are 60 to 95% by mass, 3 to 25% by mass, and 100% by mass, respectively. 2 to 20% by mass,
The bulk specific gravity of the molded body is 0.30 to 0.65,
The animal excrement disposal material, wherein the mass per one molded body is 0.05 to 0.50 g.
2. Item 2. The animal excrement disposal material according to Item 1, wherein the chemical adsorbent (B) includes at least one selected from a sulfur-based gas adsorbent and a basic gas adsorbent.
3. Item 3. The animal excrement disposal material according to Item 2, wherein the sulfur gas adsorbent contains a compound represented by the following general formula (1).
_{xNa 2 O · yCuO · SiO 2} · zH 2 O (1)
(In the formula, x is 0.002 to 0.04, y is 0.1 to 0.38, and z is 0.02 to 0.3.)
4). Item 4. The animal excrement disposal material according to any one of Items 1 to 3, wherein the inorganic antibacterial agent (C) contains zinc oxide.
5. Item 5. The animal excrement disposal material according to any one of Items 1 to 4, wherein the molded body further contains (D) a water absorbent resin.

Since the excrement disposal material of the present invention includes a molded product having a specific composition and physical properties, it has excellent deodorizing properties after absorbing excrement (feces and urine) of animals such as cats, and when it is stirred in a toilet container. Scattering is suppressed, and disposal as combustible material is possible. Since the molded body has a specific bulk specific gravity and mass, it becomes a size that is difficult to get caught between the paws of the animal's paws, and when the animal is excreted and then moved out of the toilet container, scattering occurs. It is suppressed.
When the said molded object contains water absorbing resin (D), the liquid absorption amount and liquid absorption speed | velocity | rate of animal urine can be raised. Moreover, since the liquid absorption part swells, it becomes easy to discriminate the excrement disposal material to which urine has adhered, and only that can be incinerated and discarded, which is economical.

It is a schematic perspective view which shows the toilet container used for the scattering suppression evaluation in [Example]. It is a schematic sectional drawing which shows the toilet container which spread the excrement disposal material used for the scattering inhibitory evaluation in [Example].

  As described above, the excrement disposal material of the present invention is a molded body (hereinafter referred to as “a”) containing wood powder (A), chemical adsorbent (B), and inorganic antibacterial agent (C) in a predetermined ratio. The molded body (X) has a bulk specific gravity of 0.30 to 0.65, and the mass per molded body (X) is 0.05 to 0.50 g. It is characterized by being. The excrement disposal material of the present invention may include other molded bodies (hereinafter referred to as “molded bodies (Y)”) excluding the molded body (X) as long as the effects of the present invention are not impaired.

The wood powder (A) is not particularly limited, and is derived from wooden waste materials discharged when dismantling buildings such as natural wood and houses, and wooden waste materials discharged when dismantling furniture. Can do. Natural wood includes sawdust and thinned wood that are by-produced from a lumber mill, and wood scraps that are discharged during building construction.
In the present invention, the wood powder (A) is a wood powder derived from natural wood, and can be a pulverized product of conifers such as cypress, cedar, hiba and pine. Of these, cedar wood flour is preferred.

  The particle size of the wood flour (A) is preferably 0.03 mm to 3 mm from the viewpoint of the deodorizing effect, water absorption (animal urine absorption) and shape stability of the excrement disposal material of the present invention. The wood flour (A) may have a certain size in this range, or may have different sizes. In the latter case, for example, a small particle size wood powder (fine particle) of preferably 0.03 mm or more and less than 0.4 mm, more preferably 0.05 mm to 0.3 mm, and preferably 0.4 to 3.0 mm, More preferably, the above-mentioned effect can be obtained with certainty by using a combination of large particle size wood flour (coarse particles) of 0.45 mm to 1.0 mm. The ratio of the small particle size wood flour to the whole wood flour (A) is preferably 10 to 90 mass%, more preferably 20 to 80 mass%, particularly preferably 25 to 60 mass%. Moreover, the ratio with respect to the whole wood flour (A) of large particle size wood flour becomes like this. Preferably it is 10-90 mass%, More preferably, it is 20-80 mass%, Most preferably, it is 30-70 mass%. The ratios of the small particle size wood powder and the large particle size wood powder are preferably 10 to 90% by mass and 10 to 90% by mass, and more preferably 20 to 20%, when the total of these is 100% by mass. 80 mass% and 20-80 mass%, Especially preferably, it is 25-60 mass% and 40-75 mass%.

  The content ratio of the wood flour (A) contained in the molded body (X) constituting the excrement disposal material of the present invention is the sum of the wood flour (A), the chemical adsorbent (B) and the inorganic antibacterial agent (C). Is 100-mass%, it is 60-95 mass%, Preferably it is 65-90 mass%, More preferably, it is 70-85 mass%. Since the content of the wood flour (A) is 60% by mass or more, the excrement disposal material of the present invention can have sufficient water absorbability (animal urine absorbency) and is combustible after use. Sexually can be obtained. Moreover, since the content rate of a wood flour (A) is 95% or less, the deodorizing effect by a chemical adsorption agent (B) and an inorganic type antibacterial agent (C) can fully be acquired.

  The excrement disposal material of the present invention contains a chemical adsorbent (B). Generally, physical adsorbents and chemical adsorbents are known as adsorbents for malodorous gases, and a typical physical adsorbent is activated carbon. Since the physical adsorbent adsorbs any gas, the adsorbability is saturated immediately by continuing to adsorb all gases including malodorous gas in the open space. Therefore, when the adsorption amount is saturated, it cannot act as an adsorbent, and once the environmental temperature rises, the adsorbed malodorous gas is once released, which becomes a source of malodor. On the other hand, the chemical adsorbent can adsorb only the target malodorous gas, the adsorption amount is difficult to saturate, and does not re-release the malodorous gas even when the environmental temperature rises. Also suitable for long-term storage in non-rooms.

  The chemical adsorbent (B) is usually a regular or irregular granular material, and the particle size determined by a laser diffraction particle size distribution measurement method is preferably 0.1 to 30 μm.

The chemical adsorbent (B) is preferably a chemical adsorbent for at least one of a sulfur-based gas and a basic gas because animal excrement is the target. For example, malodorous gas generated from cat urine includes ammonia generated by the decomposition of urea (NH ₂ · CO · NH ₂ ) in urine by microorganisms, and a kind of pheromone-like substance contained in a large amount in cat urine The main gas is derived from a derivative of phenyline as follows.
_{HS-C (CH 3) 2} -CH 2 -CH 2 -OH
_{HS-C (CH 3) 2} -CH 2 -CH 2 -O-CO-H
_{CH 3 -S-C (CH 3} ) 2 -CH 2 -CH 2 -OH
_{CH 3 -S-S-C (} CH 3) 2 -CH 2 -CH 2 -OH

The chemical adsorbent for sulfur-based gas can be a component containing a compound represented by the following general formula (1).
_{xNa 2 O · yCuO · SiO 2} · zH 2 O (1)
In the above formula (1), x = 0.002 to 0.04, y = 0.1 to 0.38, and z = 0.02 to 0.3.

Further, chemical adsorbents targeted for basic gases are Al ₂ O ₃ , SiO ₂ , MgO, CaO, SrO, BaO, ZnO, ZrO ₂ , TiO ₂ , WO ₂ , CeO ₂ , Li ₂ O, Na _2. O, at least two selected from K 2 _O or the like can be a component containing a composite oxide of configured amorphous. In the present invention, it is considered to contain an amorphous composite oxide represented by X ₂ O—Al ₂ O ₃ —SiO ₂ (X is at least one alkali metal atom selected from Na, K and Li). Since it is excellent in odor performance, it is especially preferable. Note that being amorphous means that when a powder X-ray diffraction measurement is performed, an obvious diffraction signal based on the crystal plane is not recognized. A signal peak with high kurtosis (so-called sharp) hardly appears on the X-ray diffraction chart in which the diffraction signal intensity is plotted on the axis.

  When the above-mentioned sulfur-based gas chemical adsorbent and basic gas chemical adsorbent are used in combination, the proportion of the amount used is preferably 20 to 80% by mass when the total of both is 100% by mass. And 20 to 80% by mass, more preferably 30 to 70% by mass and 30 to 70% by mass, still more preferably 30 to 50% by mass and 50 to 70% by mass.

The chemical adsorbent (B) may include other chemical adsorbents such as an acid gas chemical adsorbent and an aldehyde gas chemical adsorbent.
The content ratio of the chemical adsorbent (B) contained in the molded body (X) constituting the excrement disposal material of the present invention is that of the wood flour (A), the chemical adsorbent (B) and the inorganic antibacterial agent (C). When the total is 100% by mass, it is 3 to 25% by mass, preferably 3 to 20% by mass, and more preferably 4 to 15% by mass.

  The inorganic antibacterial agent (C) preferably contains a metal or a metal compound having an antibacterial action, and may be a metal or a metal compound itself, or comprises at least one of a metal and a metal compound and a carrier. It may be a composite.

Examples of the metal or metal compound having antibacterial action include metals such as silver, copper, zinc, iron, manganese, tin, nickel, lead, bismuth, cadmium, chromium and cobalt, and compounds of these metals. Examples of the metal compound include halides, oxides, nitrates, sulfates, acetates, carbonates, citrates, lactates, salicylates, stearates, phosphates, and the like. These metals or metal compounds can be used singly or in combination of two or more.
In the present invention, the inorganic specific antibacterial agent (B) is easy to adjust the bulk specific gravity and the mass per piece of the molded product (X), has a scattering suppression effect, and has sufficient antibacterial properties. In addition, it preferably contains a metal atom such as silver, copper atom, zinc atom or tin atom, and zinc oxide having a deodorizing effect on sulfur-based gas is particularly preferred.

The inorganic antibacterial agent (C) can have a composite form. In this case, it is preferable that a metal or a metal compound having an antibacterial action is supported on a carrier. In the present invention, (1) a part of the surface of the carrier is attached with an antibacterial metal or metal compound, (2) a carrier coated with an antibacterial metal or metal compound, (3) Examples include those obtained by chemically bonding a carrier and a metal or metal compound having an antibacterial action.
The carrier is not particularly limited as long as it forms a complex with an antibacterial metal or metal compound. For example, titanium oxide, zeolite, glass, amorphous aluminosilicate, montmorillonite, condensed phosphate , Zirconium phosphate, hydroxyapatite, oxohydrochloric acid, phosphoric acid double salt, disilicic acid, zirconium oxide and the like.

  The inorganic antibacterial agent (C) is usually in the form of regular or amorphous particles, and the particle diameter by the laser diffraction particle size distribution measurement method is preferably 0.1 to 30 μm.

  The content of the inorganic antibacterial agent (C) contained in the molded body (X) constituting the excrement disposal material of the present invention is as follows: wood powder (A), chemical adsorbent (B), and inorganic antibacterial agent (C) When the total is 100 mass%, it is 2 to 20 mass%, preferably 2 to 15 mass%, more preferably 3 to 12 mass%.

  The molded body (X) constituting the excrement disposal material of the present invention is further provided with a water-absorbing resin (hereinafter referred to as “water-absorbing resin (D)”), a surfactant, a pigment, a fragrance, an antiseptic, and an antifungal agent. , Fiber, clay, gypsum, cement, pH adjuster and the like.

The water-absorbent resin (D) is preferably a resin that can absorb water of several tens to 2,000 times by mass ratio and swells with gelation with respect to the mass of the resin. When the molded product (X) constituting the excrement disposal material of the present invention contains such a water-absorbing resin, the amount of urine absorbed by the animal and the rate of liquid absorption can be increased. Moreover, since the liquid absorption part swells, the excrement disposal material to which urine has adhered can be easily discriminated, and only that can be discarded. In the molded body (X), when the inorganic antibacterial agent (B), the chemical adsorbent (C) and the water absorbent resin (D) are adjacent to each other, the deodorizing effect after urine adheres is further enhanced. be able to.
Examples of the water-absorbent resin (D) include polyvinyl alcohol crosslinked polymers, polyvinyl alcohol-based superabsorbent resins such as polyvinyl alcohol water-absorbing gel freeze-thaw elastomers; sodium polyacrylate crosslinked polymers, sodium acrylate-vinyl alcohol copolymers Acrylic superabsorbent resin such as polyethylene; Polyether superabsorbent resin such as polyethylene glycol-diacrylate cross-linked polymer; Addition polymer system such as maleic anhydride (co) polymer and vinylpyrrolidone (co) polymer Superabsorbent resin; starch-acrylonitrile graft copolymer, starch-acrylic acid graft copolymer, starch-styrene sulfonic acid graft copolymer, starch-acrylamide graft copolymer, etc. Starch-based superabsorbent resin; cellulose Acrylonitrile graft copolymer, cellulose Hyaluronic acid, a polysaccharide superabsorbent such as agarose resin; graft copolymer sulfone acid, carboxymethyl cellulose cellulosic highly water absorbing resin such as a crosslinked body of the protein super absorbent polymer such as collagen and the like. These water-absorbing resins can be used singly or in combination of two or more.

  In the case where the molded body (X) constituting the excrement disposal material of the present invention contains the water-absorbent resin (D), the content ratio thereof is from the viewpoint of the shape stability of the molded body (X) and the liquid absorbability of animal urine. From this, it is preferably 0.5 to 2% by mass.

  The molded product (X) constituting the excrement disposal material of the present invention can be a small piece such as a pellet or a granulated product, and the component may be pressed and consolidated without using a binder. The binder may be bound with a binder. The molded body (X) preferably contains a binder. The binder is not particularly limited, but is preferably a water-soluble polymer. When animal urine comes into contact with an excrement disposal material containing a water-soluble polymer, the water can redissolve the polymer and adhere the excrement disposal materials to each other. Then, it becomes easy to selectively discard the integrated product.

  Examples of the water-soluble polymer include polyvinyl alcohol, starch, carboxymethyl cellulose, hydroxypropyl cellulose, gelatin and the like. Of these, polyvinyl alcohol is preferred.

  The said molded object (X) has wood powder (A) as a main component, and is discarded as a combustible after use. The content ratio of the wood flour (A) with respect to the entire formed body (X) is preferably 60 to 90% by mass, more preferably 70 to 90% by mass.

The shape of the molded body (X) that constitutes the excrement disposal material of the present invention is preferably integral (itself) and difficult to roll, and is plate-like, massive (polyhedral, etc.), linear (columnar, cylindrical) Etc.), conical, pyramidal, etc. Of these, it is preferable to have a linear shape.
Moreover, the size of the said molded object (X) is the largest diameter or the largest length also in any said shape, Preferably it is 3-25 mm, More preferably, it is 5-15 mm. When it has a linear shape, the outer diameter is preferably 3 to 7 mm.

  The bulk specific gravity of the molded body (X) constituting the excrement disposal material of the present invention is 0.30 to 0.65, preferably 0.35 to 0.55. When the bulk specific gravity is less than 0.30, for example, when a cat excretes in a toilet container, immediately after that, the excrement disposal material is stirred with a foot, and a large amount of excrement disposal material is easily scattered outside the toilet container. And is not hygienic. On the other hand, when the bulk specific gravity exceeds 0.65, it is not easy to carry when replacing.

  The mass per one molded body (X) is 0.05 to 0.50 g, preferably 0.06 to 0.50 g, more preferably 0.07 to 0.00 from the viewpoint of scattering suppression after excretion. 45 g. The mass of each molded body (X) may be the same or different. When excrement disposal materials containing molded bodies (X) having different masses are accommodated in a toilet container, if the average mass is too low, sufficient scattering suppression may not be obtained. From this point, the average mass of 20 or more excrement disposal materials accommodated in the toilet container is preferably 0.05 to 0.50 g, more preferably 0.07 to 0.45 g.

  The molded body (X) comprises a mixture of a wood powder (A), a chemical adsorbent (B), an inorganic antibacterial agent (C) and an optional component, compression granulation method, rolling granulation method, extrusion granulation method. It can manufacture by using for etc. In particular, the extrusion granulation method is a preferable molding method in terms of economy because it is easy to set and process and can be continuously produced. The extrusion granulation method is a manufacturing method in which a composition of each component is added and kneaded with an appropriate amount of water, extruded from a die having a hole diameter of several mm to form a string, and the string is folded or cut into an appropriate length. is there. After granulation, it is preferable to dry with a dryer or the like until the water content is 8% or less.

As described above, the excrement disposal material of the present invention can contain another molded body (Y). The configuration of the molded body (Y) is not particularly limited as long as the effects of the present invention can be obtained. Preferable molded object (Y) has wood powder as a main component, a preferable content rate is 20-95 mass% with respect to the whole molded object (Y), bulk specific gravity is 0.30-0.65, 1 The molded body has a mass per piece of 0.05 to 0.50 g. In addition, chemical adsorbents, antibacterial agents, surfactants, pigments, fragrances, preservatives, fungicides, fibers, clay, gypsum, cement, pH adjusters and the like can be contained.
When the excrement disposal material of the present invention is composed of the molded body (X) and the molded body (Y), the upper limit of the content of the molded body (Y) is usually 100 parts by mass of the molded body (X). 50 parts by mass.

  Since the excrement disposal material of the present invention contains wood flour (A), it particularly has the ability to absorb animal urine. For example, the time from the contact of water having the same mass as the excrement disposal material to the completion of water absorption can be within 5 seconds. In the case of a cat, the amount of urine varies depending on the body weight, but is usually about 20 to 70 ml per time. This volume is substantially the same when converted by the mass of the excrement disposal material present in the urination part of the toilet container. Since the excrement disposal material of the present invention can absorb one urine within 5 seconds, the urine is not absorbed and falls to the bottom of the toilet container and does not accumulate, thereby suppressing the generation of bad odor and the like. Can do.

  EXAMPLES Hereinafter, although an Example demonstrates this invention further more concretely, this invention is not limited to these Examples.

1. Evaluation method The evaluation method of the excrement disposal material which consists of a molded object obtained by the Example and the comparative example is as follows.
(1) Bulk specific gravity A 100 mL graduated cylinder was filled with a waste treatment material by tapping, and the calculated mass of the waste treatment material per volume of 1 mL was measured.
(2) Mass of excrement processing material The mass of 20 excrement processing materials was measured, and the lightest value and the maximum weight value were confirmed. Moreover, the average mass per piece was calculated.
(3) Water absorption time Measure the mass of one excrement disposal material, drop the same amount of phosphate buffer solution on the top of the excrement disposal material with a pipette, and determine the time until it is determined that the water has been completely absorbed visually. It was measured.
(4) Antibacterial performance 0.4 mL of the excrement disposal material was inoculated with 0.2 mL of a normal bouillon medium containing about 10 ⁴ cells / mL of E. coli, and the number of viable bacteria after culturing at 37 ° C. for 18 hours was measured. The antibacterial activity value was calculated by comparing the number of bacteria in the blank test.
(5) Hydrogen sulfide deodorization performance Put 0.1 g of excrement disposal material into a bag made of polyvinyl alcohol, seal and deaerate, inject 3 L of air containing 4 volume ppm of hydrogen sulfide gas, I put it. The residual hydrogen sulfide gas concentration after 2 hours was measured with a gas detector tube. The deodorization rate (% by volume) was calculated in comparison with the hydrogen sulfide gas concentration after the same operation without putting anything in the polyvinyl alcohol bag.
(6) Deodorant and scattering suppression About 7 L (about 3 kg) of the excrement disposal material is placed on the commercially available cat toilet container (depth 130 mm) shown in FIG. 1 so that the height from the bottom is 40 mm. It was used for 1 week in a home where three laying cats were raised (see Fig. 2). Thereafter, the odor of the excrement disposal material was sensory-evaluated, and the state of scattering of the excrement disposal material around the toilet container was visually observed.
<Evaluation criteria for deodorization>
A: No smell of manure B: No smell of manure but not strong C: Strong smell of manure <Evaluation criteria for scattering inhibition>
A: There is no scattering B: There is scattering but it is not violent C: Scattering is intense

2. Manufacture and evaluation of excrement disposal material The excrement disposal material was manufactured using the following raw materials, and various evaluations were performed.
(1) Wood flour (fine grain)
Cedar wood powder having a particle size of 0.1 to 0.2 mm was used.
(2) Wood flour (coarse)
Cedar wood flour having a particle size of 0.5 to 0.7 mm was used.
(3) Average particle diameter sulfur-gas chemical adsorbent was used _{0.03Na 2 O · 0.32CuO · SiO 2} · 0.15H 2 O of 5 [mu] m.
(4) Basic gas chemical adsorbent 0.21Na ₂ O.Al ₂ O ₃ .10.1SiO ₂ .9H ₂ O having an average particle diameter of 11 μm was used.
(5) Inorganic antibacterial agent Zinc oxide having an average particle size of 0.4 μm was used.
(6) Water-swellable clay Bentonite having an average particle size of 12 μm was used.
(7) PVA
(8) Water-absorbing resin A commercially available acrylic acid polymer sodium salt was used.
(9) Surfactant Sodium sulfosuccinate was used.

Example 1
In accordance with the formulation shown in Table 1, 32 parts by weight of wood flour (fine particles), 50 parts by weight of wood flour (coarse particles), 8 parts by weight of zinc oxide, 5 parts by weight of basic gas chemical adsorbent, and sulfur-based gas chemical adsorbent 3 Part by mass, 2 parts by mass of PVA, 0.1 part by mass of sodium sulfosuccinate and 20 parts by mass of water were placed in a mixer and mixed. Thereafter, extrusion was performed using a pelletizer to obtain pellets having a diameter of about 4 mm and a length of about 10 mm. Next, the pellets were dried at 70 ° C. until the water content became 8% by mass or less with a dryer. And it classify | categorized using the wire mesh with an opening of 7 mm, and obtained the excrement disposal material. The obtained excrement disposal materials were subjected to the above evaluation, and the results are shown in Table 1.

Examples 2-4 and Comparative Examples 1-7
According to the formulation shown in Table 1, the raw materials were mixed, and an excrement disposal material was obtained in the same manner as in Example 1. Then, it used for the said evaluation and described the result in Table 1.

  As is clear from Table 1, Examples 1 to 4 were superior in deodorization and scattering suppression compared to Comparative Examples 1 to 7.

  The excrement disposal material of the present invention is excellent in deodorizing property after absorbing excrement (feces and urine) of animals such as cats, and is prevented from scattering when it is stirred in a toilet container after excretion. In combination with a toilet container or the like, it is suitable for an animal toilet raised indoors. Since the excrement disposal material of the present invention can be further discarded as a combustible material, it is highly convenient. Moreover, the excrement disposal material of the present invention can also be applied, for example, to mating materials for breeding gauges, livestock barns, and the like.

  10: toilet container, 20: excrement disposal material, 30: toilet for animals

Claims (5)

(A) wood flour, (B) a chemical adsorbent, and (C) a material for treating animal excreta, including a molded article containing an inorganic antibacterial agent,
The content ratios of the components (A), (B) and (C) contained in the molded body are 60 to 95% by mass, 3 to 25% by mass and 100% by mass, respectively. 2 to 20% by mass,
The bulk specific gravity of the molded body is 0.30 to 0.65,
The animal excrement disposal material, wherein the mass per one molded body is 0.05 to 0.50 g.   The animal excrement disposal material according to claim 1, wherein the chemical adsorbent (B) includes at least one selected from an adsorbent for sulfur-based gas and an adsorbent for basic gas. The animal excrement disposal material according to claim 2, wherein the sulfur-based gas adsorbent contains a compound represented by the following general formula (1).
_{xNa 2 O · yCuO · SiO 2} · zH 2 O (1)
(In the formula, x is 0.002 to 0.04, y is 0.1 to 0.38, and z is 0.02 to 0.3.)   The animal excrement disposal material according to any one of claims 1 to 3, wherein the inorganic antibacterial agent (C) contains zinc oxide.   The animal excrement disposal material according to any one of claims 1 to 4, wherein the molded body further contains (D) a water absorbent resin.

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