CN116709910A

CN116709910A - Excrement treatment material and method for deodorizing excrement using same

Info

Publication number: CN116709910A
Application number: CN202180091349.9A
Authority: CN
Inventors: 松村贵史; 高畑美怜
Original assignee: ST Corp
Current assignee: ST Corp
Priority date: 2021-01-28
Filing date: 2021-11-10
Publication date: 2023-09-05
Also published as: WO2022163063A1; JPWO2022163063A1

Abstract

The present invention provides an excrement treatment material which is excellent in deodorizing the odor of excrement, and is characterized by comprising: 1 or more than 2 kinds of base materials selected from the group consisting of paper, plastic, clay mineral, water glass, activated clay, activated carbon, silica gel, hydrotalcite, titanium oxide, starch, bean dregs, corn starch, green tea leaves, coffee bean shells, crushed pulp, paper sand and wood dust; and synthesizing zinc aluminosilicate.

Description

Excrement treatment material and method for deodorizing excrement using same

Technical Field

The present invention relates to an excrement treatment material, and relates to an excrement treatment material used for treating excrement of pets, particularly cats and dogs, and a method for deodorizing excrement using the excrement treatment material.

Background

In order to facilitate the treatment of pet excreta, various pet excreta treatment materials have been proposed. As a pet litter box for treating excrement of pets such as cats and dogs, there is known a pet litter box having the following constitution: the toilet main body is divided vertically by a drain plate as a porous member, a waste treatment material is laid on an upper portion (upper portion), and a urine absorbing material made of, for example, a water-absorbent resin, plant fiber, pulp, or the like is laid on a lower portion (lower portion) (for example, see patent document 1 and patent document 2: this is referred to as a system toilet).

In these toilets for pets, the excrement treatment material laid on the upper layer portion allows urine excreted by the pet to pass through quickly, and the passing urine falls to the lower layer portion through the liquid-permeable hole of the drain plate, so that the urine absorption material such as the urine absorption pad disposed on the lower layer portion actively absorbs the falling urine (this excrement treatment material is referred to as a waterproof type excrement treatment material).

As such a water-repellent excrement treatment material, a material is disclosed which is water-repellent by using pulp, wood chips, or the like as a base material, blending a resin or wax, or water-repellent coating the surface, or the like.

In addition, as the excrement treatment material, an excrement treatment material using okara, zeolite, bentonite or pulp is applied to a tray on which animals are excreted, and after the excretion, the excrement is absorbed, and the excrement-absorbed treatment material is treated so as to be joined to each other to form a block, whereby the excrement-absorbed treatment material can be removed as a block, which is convenient and sanitary. In addition, from the viewpoint of convenience in disposing of the treatment material that has absorbed excrement in the same manner as normal excrement, there has been proposed a treatment material that can be flushed away in a flush toilet (this is referred to as an excrement treatment material of the water absorption type). Patent document 5 discloses a wood pellet which is formed by uniformly mixing a pulverized material of a wood part of a conifer with a pulverized material of a leaf part of the conifer and molding the mixture so as to disintegrate itself by absorbing moisture.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open No. 2002-84909

Patent document 2: japanese patent laid-open publication No. 2003-180182

Patent document 3: japanese patent application laid-open No. 2010-158253

Patent document 4: japanese patent application laid-open No. 2010-17096

Patent document 5: japanese patent application laid-open No. 2010-252783

Disclosure of Invention

Problems to be solved by the invention

However, in any type of excrement treatment material, the deodorizing function of excrement itself, particularly the deodorizing effect on excrement, is low.

The present invention has been made in view of the above problems, and an object thereof is to provide an excrement treatment material excellent in deodorizing property of the odor of excrement.

Means for solving the problems

The present inventors have repeatedly studied an excrement treatment material excellent in deodorizing property of excrement, and as a result, have found that an excrement treatment material containing synthetic zinc aluminosilicate can solve the above-mentioned problems, and have completed the present invention.

Specifically, the present invention relates to a waste treatment material characterized by comprising 1 or more types of base materials selected from the group consisting of paper, plastic, clay minerals, water glass, activated clay, activated carbon, silica gel, hydrotalcite, titanium oxide, starch, bean dregs, corn starch, green tea leaves, coffee bean shells, crushed pulp, paper sand, and wood chips, and synthetic zinc aluminosilicate.

The present invention also relates to a waterproof type excrement treatment material, which is characterized by comprising the excrement treatment material and a synthetic resin and/or wax.

The present invention also relates to a waterproof excrement treatment material comprising the excrement treatment material and a fibrous component obtained by heating the xylem and/or leaf of a tree under reduced pressure by microwaves and drying at least a part of the heated wood and/or leaf.

The present invention also relates to a method for deodorizing excrement, characterized in that the excrement treatment material is brought into contact with excrement.

Effects of the invention

According to the present invention, excrement treatment excellent in deodorizing property of the odor of excrement can be realized.

Detailed Description

The synthetic zinc aluminosilicate used in the excrement treatment material of the present invention exhibits supplemental antimicrobial properties by the action of the zinc metal component, and exhibits adsorption to ammonia, and particularly, it is most preferable to use a layered zinc aluminosilicate, such as a zinc-metal-oxide-zinc-silicate-silica composite.

The layered zinc aluminosilicate-silica composite is obtained by compounding a layered zinc aluminosilicate component similar to natural zinc aluminum serpentine, which is a typical synthetic clay mineral, with an amorphous silica component. The layered zinc aluminosilicate will consist of SiO ₄ -AlO ₄ Tetrahedral layer of (c) and ZnO ₆ -AlO ₆ A two-layer structure consisting of octahedral layers as a basic skeleton.

Representative of such layered zinc aluminosilicate-silica complexes are represented by the following formula:

(Zn ₃ -xAlx)(Si ₂ -yAly)O ₅ (OH)/(SiO ₂ )m(H ₂ O)n(OH)x-y

wherein x is a number of 0.1 to 1.75,

y≦x，

m is a number of 0.5 to 2.5,

n is a number of 0.5 to 2.5.

The layered zinc aluminosilicate-silica composite is produced by adding a water-soluble silicate, a water-soluble zinc salt, and a water-soluble aluminum salt and/or aluminate to a sol or gel dispersion of silica, and reacting the added salts in the presence of silica, for example, to produce a layered zinc aluminosilicate-silica composite comprising silica and layered zinc aluminosilicate formed on the surface of the support. Commercially available Mizukanite HP (registered trademark, manufactured by the Water chemistry industry) may also be used.

In the layered zinc aluminosilicate-silica composite, siO is caused to have a structure in which a two-layer structure of layered zinc aluminosilicate ₄ -AlO ₄ The Al substitution part of the tetrahedral layer has negative charge to ZnO ₆ -AlO ₆ The Al substitution sites of the octahedral layer have positive charges with acidic and basic sites, respectively. In addition, the compounded amorphous silica fraction also has a large number of protonic acids derived from silanol groups. Therefore, the layered zinc aluminosilicate-silica composite exhibits high adsorptivity to both alkaline gas and acidic gas, particularly to highly polar malodorous gases such as ammonia.

The content of the synthetic zinc aluminosilicate in the treatment material of the present invention is not particularly limited, and is, for example, 0.01 to 10% by mass, preferably 0.1 to 5% by mass.

Examples of the base material used in the treatment material of the present invention include clay minerals such as paper (pulp), plastics and bentonite, water glass, activated clay, activated carbon, silica gel, hydrotalcite, titanium oxide, starch, bean dregs, corn starch, green tea leaves, coffee bean shells, crushed pulp, paper sand, wood dust and the like. These substrates may be used in combination of 1 or 2 or more.

The content of the base material in the treatment material of the present invention is not particularly limited, and is, for example, 60 to 98% by mass, preferably 85 to 97% by mass.

The treatment material of the present invention may be any type of water-repellent or water-absorbent type, and is preferably a water-repellent type, in which case it may be made to contain the above-mentioned excrement treatment material, and synthetic resin and/or wax for liquid repellency at the time of use.

Examples of the synthetic resin include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate, polyamides, and vinyl resins. Polyolefin such as polyethylene and polypropylene is preferable because it is low in cost and easy to process. These synthetic resins may be used in combination of 1 or 2 or more.

As the wax, for example, any of natural wax and synthetic resin wax can be used. In addition, 1 or a combination of 2 or more kinds of these waxes may be used.

Examples of the natural wax include petroleum-derived waxes, mineral waxes, vegetable waxes, and animal waxes. Examples of the petroleum-derived wax include paraffin wax and microcrystalline wax. Examples of the mineral wax include montan wax. Examples of the plant wax include carnauba wax and wood wax, and examples of the animal wax include beeswax. Examples of the synthetic resin wax include polyethylene wax and polypropylene wax.

The content of the synthetic resin and/or wax in the treatment material of the present invention is not particularly limited, and is, for example, 0.1 to 10% by mass, preferably 0.5 to 5% by mass.

The treatment material of the present invention may contain, in addition to the synthetic resin and/or wax, an adhesive such as an ethylene-vinyl acetate copolymer, and a polymer compound such as starch. Examples of starches include potato starch, corn starch, wheat starch, tapioca starch, sweet potato starch, waxy starch, and rice starch. The polymer compound may contain an adhesive such as sodium alginate, pullulan, gelatin, dextrin, carboxymethyl cellulose, sodium polyacrylate, or the like.

In the case of producing a water-proof excrement treatment material, wood chips (sawdust) are preferably used as the base material. The tree to be used is not particularly limited, and it is preferable to use sawdust of conifer, particularly sawdust of fir, pine or cypress, etc. from the viewpoints of moldability, deodorizing property and the like.

In the case where the treatment material of the present invention is used as a water-repellent excrement treatment material (hereinafter, this may be simply referred to as "excrement treatment material"), the content of the base material, synthetic zinc aluminosilicate, synthetic resin and/or wax is not particularly limited, and for example, the base material is 60 to 98% by mass, preferably 85 to 97% by mass, the synthetic zinc aluminosilicate is 0.01 to 10% by mass, preferably 0.1 to 5% by mass, and the synthetic resin and/or wax is 0.1 to 10% by mass, preferably 0.5 to 5% by mass.

The water-proof type excreta management material can be produced by a conventionally known method. One method is to mold a mixture of the above components into a predetermined shape by using an extruder (the methods described in japanese patent application laid-open publication nos. 2017-79622 and 2013-153678).

The thus-produced waterproof excrement treatment material is effective in so-called system toilets that allow urine to pass through.

The waterproof excrement treatment material of the present invention may further contain a fibrous component obtained by heating the xylem and/or leaf of a tree under reduced pressure by microwaves to remove at least a part of essential oil and water.

The tree used for obtaining the fibrous component is not particularly limited, and examples thereof include hinoki genus of Cupressaceae, thuja genus of Cupressaceae, cruja genus of Cupressaceae, abies genus of Pinaceae, himalayan cedar genus of Pinaceae, pinaceae genus of Larix genus, pinaceae genus of Cephalotaxus genus, eucalyptus genus of Myrtaceae family, himalayan genus of Pinaceae family, torreya genus of Taxaceae family, and Thuja genus of Cupressaceae family.

Examples of the tree belonging to the genus hinoki of the family Cupressaceae include hinoki, taiwan hinoki, alaska hinoki, american hinoki, short-branch hinoki, japanese cypress, phoenix tail cypress, short-yellow Japanese cypress, short-branch hinoki, wire cypress, gold wire cypress, pinus, huang Kongqiao cypress, and juniper. Examples of the tree belonging to the genus thuja of the family Cupressaceae include Thuja occidentalis, and the like. Examples of the tree belonging to the genus juniper of the family Cupressaceae include Platycladus orientalis, juniper, sabina chinensis, and Juniperus chinensis. Examples of the tree belonging to the genus Cryptomeria of the family Cupressaceae include Cryptomeria japonica, centipeda cuneata, centipeda brevifolia She Liusha, centipeda, and Centipeda viridis.

Examples of trees of the genus fir of the family Pinaceae include Coprinus comatus, japanese fir, solar fir, white fir, balsam fir, umbrella fir, bai Lengsha, pacific silver fir, north sea fir, red fir, white fir, and Zhuang fir. Examples of the tree of genus spruce of Pinaceae include Picea kurz, picea armywood, and the like. Examples of the tree belonging to Pinaceae genus include Pinus densiflora, pinus longifolia, pinus arborescens, pinus pumila, etc. Examples of the tree belonging to genus Larix of Pinaceae include Larix japonicus. Examples of the tree belonging to the genus hemlock of the family Pinaceae include Japanese hemlock and the like.

Examples of the tree belonging to the genus Eucalyptus of the family Myrtaceae include Eucalyptus globulus, eucalyptus robusta, eucalyptus rubra, and Eucalyptus citriodora.

Examples of the tree belonging to genus Pinus of family Pinaceae include Pinus koraiensis.

Examples of the tree belonging to the genus Torreya of the family Taxaceae include Torreya japonica.

Examples of trees of the genus momordica in the family of the Cupressaceae include thuja, next sabina, qinssen thuja, thin leaf thuja, and the like.

Among the above trees, hinoki genus of Cupressaceae, cryptomeria genus of Cupressaceae, tasmanian genus of Pinaceae, eucalyptus genus of Myrtaceae, hibiscus genus of Juniperus family, cupressaceae family, for reasons of large distribution in Japan and easy availability, more preferably, hinoki, taiwan hinoki, alaska hinoki, japanese cedar of Cupressaceae, costus kukola of Cunninghamia, eucalyptus globulus of Eucalyptus of Pinaceae, hizikia of Hirtaceae, arhat cypress of Siraitia of Cupressaceae, particularly preferably Costus kukola, japanese fir of Pinaceae. These trees may be combined with two or more kinds.

The method of heating the wood parts and/or leaves of the above tree, preferably the wood parts and leaves, under reduced pressure by microwaves and drying at least a part thereof is called a reduced pressure drying method. The reduced pressure drying method is a method for removing water and essential oil originally contained in a material by utilizing the property of directly heating water molecules by microwaves.

The reduced pressure drying method can be performed using, for example, a microwave distillation apparatus described in WO2010/098440 or the like. In the reduced pressure drying method, the pressure in the distillation tank may be set to 10 to 95kPa, preferably 20 to 80kPa, and particularly preferably 30 to 60 kPa. The vapor temperature at this time is 40 to 100 ℃.

The drying step for removing water under normal pressure is preferably performed after heating the xylem and/or leaf of the tree under reduced pressure by a microwave to remove at least a part of the essential oil and water. The drying temperature and drying time are not particularly limited, and may be, for example, about 50 to 80℃for about 1 to 5 hours. The content of the essential oil component to be left is 0.01 to 10% by mass, preferably 0.1 to 5% by mass. The residual moisture is 1 mass% or less.

The thus obtained fibrous component is solid and exhibits excellent deodorizing and antibacterial effects. The reason why the cellulosic component exhibits the deodorizing effect and the antibacterial effect is largely unknown, but it is estimated that the odor-adsorbing site is generated in the lignin structure or the cellulose structure from which a part of the essential oil is removed, by observation of the wooden structure in which cellulose is fixed to lignin or the essential oil.

In addition, although the moisture is substantially removed, the essential oil component is not completely removed, and a part of the essential oil component contained in the xylem and/or leaf of the tree is removed, and a part of the essential oil component remains in the fibrous component.

The essential oil remaining in the fiber component is preferably low in volatility and/or nonvolatile. This is because the lower the volatility, the longer the function of the essential oil (for example, deodorizing function and/or fragrance function) can be exhibited. The essential oil component preferably contains a component having a relatively large molecular weight. This is because the larger the molecular weight is, the less volatile it is. When the essential oil is extracted from the xylem or the like of a tree, the essential oil having a smaller molecular weight and/or being easily volatilized is preferentially extracted, and thus the essential oil having a lower volatility and/or a larger molecular weight tends to remain in the material. The essential oil component remaining in the material is preferably low in monoterpene content and contains more sesquiterpenes, diterpenes or tetraterpenes. When the proportion of terpenes having a large molecular weight such as sesquiterpenes and diterpenes is large, deodorizing effects and/or aromatic effects can be exhibited over a long period of time, and deodorizing effects can be exhibited against various malodors caused by acidic, basic and neutral malodorous substances. Examples of the malodor substances include ammonia, methyl mercaptan, hydrogen sulfide, methyl disulfide, trimethylamine, acetaldehyde, propionaldehyde, n-butyraldehyde, isobutyraldehyde, n-valeraldehyde, isovaleraldehyde, isobutanol, ethyl acetate, methyl isobutyl ketone, toluene, styrene, xylene, propionic acid, n-butyric acid, n-valeric acid, and isovaleric acid.

Since deodorizing properties of the fibrous component are continued for a long period of time, it is preferable that the fibrous component contains an essential oil having low volatility and/or an essential oil having no volatility. The fibrous component preferably contains an essential oil having a large molecular weight.

The fibrous component preferably contains an essential oil such as a monoterpene or a sesquiterpene. Examples of the monoterpenes include α -pinene, β -pinene, camphene, tricyclone, myrcene, β -phellandrene, bornyl acetate, δ -3-carene, terpinolene, limonene, and the like.

Examples of sesquiterpenes include β -caryophyllene and sabinene.

The essential oils remaining in the cellulosic component are preferably low in monoterpene content and more sesquiterpenes, diterpenes and/or tetraterpenes are included. When the proportion of terpenes having a large molecular weight such as sesquiterpenes and diterpenes is large, the fibrous component can maintain excellent deodorizing properties for a long period of time.

Further, by subjecting the fibrous component to the drying treatment, the essential oil component contained in the fresh leaves and fresh wood oozes out to the surface of the fibrous component, and therefore the deodorizing effect and the antibacterial effect of the remaining component can be exhibited more than in the fresh leaves and fresh wood.

The content of the fibrous component in the water-repellent excrement treatment material of the present invention is not particularly limited, but is 0.1 to 10% by mass, preferably 0.1 to 5% by mass.

In the case where the water-repellent excrement treatment material of the present invention further contains a fibrous component, the content of the base material, the synthetic zinc aluminosilicate, the fibrous component, the synthetic resin and/or the wax is not particularly limited, and for example, the base material is 60 to 98% by mass, preferably 85 to 97% by mass, the synthetic zinc aluminosilicate is 0.01 to 10% by mass, preferably 0.1 to 5% by mass, the fibrous component is 0.1 to 10% by mass, preferably 0.1 to 5% by mass, and the synthetic resin and/or the wax is 0.1 to 10% by mass, preferably 0.5 to 5% by mass.

The treatment material of the present invention may be further combined with other components such as an inorganic material, a deodorant, a mold preventive, an antibacterial agent, a perfume, etc. as optional components, as required, thereby producing various types of excrement treatment materials.

Examples of the inorganic material include inorganic materials such as zeolite, diatomaceous earth, silica gel, talc, calcium carbonate, calcium sulfate, sodium carbonate, aluminum sulfate, copper sulfate, silver nitrate, feldspar, and framework silicate. These inorganic materials may be used in combination of 1 or 2 or more.

Examples of the deodorizing agent include activated carbon, vermiculite, perlite, silica gel, pyroligneous liquor, bamboo vinegar, roasted coffee bean extraction residue, tea leaves, zeolite, bentonite, catechins, chalcones, flavanones, flavones, flavonols, flavanonols, flavanols, isoflavones or anthocyanidins, and unburned sintered ash. These deodorants may be used in combination of 1 or 2 or more.

Examples of the mold inhibitor include phenol compounds such as isopropyl methyl phenol, thiazoline compounds such as isothiazolone, imidazole compounds, and organic nitrogen compounds. These antimycotic agents may be used in combination of 1 or more than 2.

Examples of the antibacterial agent include table salt, sorbic acid or a salt thereof, didecylmethyl ammonium, chloroacetamide, benzalkonium chloride, polyphenols, calcium propionate, sodium hypochlorite, benzoic acid or a salt thereof, silver, copper, and the like. These antimicrobial agents may be used in combination of 1 or more than 2.

As a fragrance material, it is possible to use, examples of the aromatic compounds include l-carvone, p-cresol, p-methylacetophenone, alpha-pinene, beta-naphthylmethyl ether, gamma-undecalactone, acetylcedrene, anethole, allyl isopentyloxy acetate, methyl anthranilate, ambroxol ether, aromatic cordierite, isobutylquinoline, undecylaldehyde, undecylenal, eugenol, octylaldehyde, orange, jiale musk, karanal, watermelon ketone, camphor, coumarin, fennel oil, grapefruit, geraniol, geranonitrile, isobornyl acetate, cis-3-hexenyl acetate, storax acetate, cedryl acetate, terphenyl acetate, benzyl acetate, linalyl acetate, amyl salicylate, cis-3-hexenyl salicylate, bai Leiman sandalwood, cis-3-hexenol, cis-jasmonate, and the like, which have a high effect on pet odor citral, citronellal, citronellol, eucalyptol, methyl dihydrojasmonate, dihydromyrcenol, diphenyl oxide, cinnamyl alcohol, cedarwood, geranium, terpineol, jojoba ketone, damascenone, thymol, 2, 6-dimethyl-2-heptanol, decylaldehyde, dodecylaldehyde, ligustral, nonylaldehyde, santalol, basil, agastache, vanillin, cyclopentadecanolide, phenylethanol, fructosyl ester, french Luo Pa, hexylcinnamaldehyde, peppermint, piperonal, neohelial, bergamot, benzyl alcohol, benzaldehyde, ethyl cyclohexylpropionate, maltitol, citrus, musk ketene, methyl ionone, methyl nonylacetaldehyde, methyl phenyl acetate, ethyl methyl phenyl glycidate, menthol, eucalyptol, green lemon, moon Gui Jiquan, green lemon, ethyl butyrate, raspberry ketone, eye-catching lavender, laodendron, lavender, linalool oxide, limonene, neotame, mugwort, lemon, rose ether, rosemary, and the like. These perfumes may be used in 1 kind or in a combination of 2 or more kinds.

The shape of the treatment material of the present invention may be a conventionally known shape of a waste treatment material, and examples thereof include a granular shape, a pellet shape, and the like. The size is not particularly limited, and for example, if the pellet-like shape is used, the length is 1 to 20mm, preferably 5 to 15mm, and the diameter is 1 to 10mm, preferably 3 to 7mm.

The treatment material of the present invention can be produced by a conventionally known method for producing a fecal treatment material using the above components.

The excrement treatment material of the present invention described above can deodorize excrement by contacting with excrement. The excrement treatment material of the present invention exhibits a high effect particularly in deodorizing the odor of feces.

The excrement treatment material of the present invention can improve the deodorizing effect even when only a part of the excrement treatment material of the same type is used in the market.

Examples

The present invention will be described in detail with reference to examples, but the present invention is not limited to these examples.

Example 1

Waterproof excrement treatment material:

the components were mixed in the following amounts shown in Table 1, and the components were uniformly mixed. After mixing, water was added in an amount corresponding to about 5 mass% with respect to the total amount (100 mass%) of the obtained mixture, and further mixing was performed. The obtained mixture was extruded through a die having a plate thickness of 18mm and an opening having a diameter of 5mm using a tray granulator type F-5 (power: 200V3.7K W4P, shaft rotation speed: 120 rpm) of a tray type extruder manufactured by Dalton, inc., to obtain a water-repellent excrement treating material having cylindrical pellets having a diameter of 3 to 7mm and a length of 5 to 20mm (inventive product 1).

TABLE 1

	Inventive product 1	Inventive product 2	Inventive product 3	Comparative product 1
					Wood chips of hinoki cypress	96.6 parts by weight	96.9 parts by weight	96.9 parts by weight	97.5 parts by weight
Synthetic zinc aluminosilicate	0.6 part by weight	0.3 part by weight	0.6 part by weight	-
					Cellulosic component ^※1	0.3 part by weight	0.3 part by weight	-	-
Paraffin wax	2.5 parts by weight	2.5 parts by weight	2.5 parts by weight	2.5 parts by weight

The method for producing a residue comprises pulverizing branches and leaves of Abies kudo with a crushing pulverizer, placing into a retort of a microwave retort (device described in WO 2010/098440), and irradiating the residue with microwaves under reduced pressure of about 15kPa for about 1 hour.

When water is sprayed onto the water-repellent excrement treatment material of the present invention products 1 and 2, it repels water but does not disintegrate.

Test example 1

Chemical deodorization test:

200ml of the inventive product and the comparative product were filled into a 500ml cup (by volume) with a 10 liter cock bag, and after hydrogen sulfide was added, the mixture was filled with odorless air, and the initial concentration of hydrogen sulfide was adjusted to 100ppm. In addition, a hydrogen sulfide-only gas bag was prepared without adding the inventive product and the comparative product, and the initial concentration was adjusted to 100ppm (blank). The hydrogen sulfide concentration was measured with a test tube at room temperature (about 20 ℃) over time. The concentrations of the odor components of the air bags and the voids to which the inventive product 1 and the comparative product 1 were added were measured over time, and 90% removal time (. Tau.0.1) was obtained. The results are shown in Table 2.

TABLE 2

	Inventive product 1	Comparative product 1
			Deodorization test (Hydrogen sulfide) τ0.1	187min	Without any means for

In contrast to the comparative product 1, no deodorizing effect was observed, and it was found that the product 1 of the present invention exhibited deodorizing effect. From the results, it was found that the present invention product 1 was capable of deodorizing the odor of feces.

Test example 2

Tester test:

the present invention 1 was subjected to a tester test. The following 6 testers A to F were allowed to use the present invention 1 in a commercial toilet, and after about 1 week, the following items were evaluated by the following indexes. The results are shown in tables 3 to 5.

Tester attributes

A System toilet (dome) user

B System toilet (dome) user

C, user of system toilet (open type)

D, user of system toilet (open type)

E System toilet (open type) user

F, common toilet user

TABLE 3

TABLE 4

TABLE 5

Each tester stated that the use of the present invention product 1 was more desirable than the cat litter used by each tester in the past because of the high deodorizing effect of excrement (particularly feces) and other reasons.

Example 2

Waterproof excrement treatment material:

the following amounts of the materials were mixed in accordance with the method of example 1 to obtain a waterproof excrement treatment material (inventive product 4). The numbers in the table are mass%.

TABLE 6

	Inventive product 4	Comparative product 2
			Wood chips of hinoki cypress	41.8	42.4
Calcium carbonate	45	45
			Paraffin wax	2.5	2.5
Corn starch	10	10
			Cellulosic component ^※1	0.3	0
Synthetic zinc aluminosilicate	0.3	0
			Mildew preventive	0.1	0.1

1: the same as Table 1

Test example 3

Sensory deodorization test:

for the inventive product 4 and the comparative product 2, sensory deodorization test against hydrogen sulfide was performed by the following method. The results are shown in Table 7.

< method for Hydrogen sulfide test >

200ml of each inventive product was placed in a 500ml cup (by volume), and the mixture was placed in a 10 liter bag with a cock, and after sealing, 6ml of hydrogen sulfide was added thereto, and immediately filtration was performed, and the mixture was placed in a bag with a cock having a capacity of 10 liters, and sealing was performed. After standing for 30 minutes, the cock of the air bag was opened, and the air bag was directly sniffed, and the malodor intensity and comfort/discomfort were evaluated according to a six-level malodor intensity indicator and a 9-level comfort/discomfort indicator. The number of the testers was 10, and each tester evaluated the sensory deodorizing effect on each test piece. The arithmetic mean of the evaluations of the test pieces was calculated.

(malodor evaluation)

0.0.no peculiar smell.

1. Cndot. Is a barely perceptible odor.

2. The smell is what is known as what smell.

3. Is an odor that can be easily perceived.

4. Cndot. Is a very strong odor.

5. Cndot. Is a very strong odor.

(comfort/discomfort level)

-4: extremely uncomfortable

-3: very uncomfortable

-2: uncomfortable feeling

-1: slightly uncomfortable

0: no comfort nor discomfort

+1: slightly comfortable

+2: comfort and comfort

+3: very comfortable

+4: extremely comfortable

TABLE 7

Deodorization test (Hydrogen sulfide)	Inventive product 4	Comparative product 2
			Malodor intensity	2.40	2.90
Comfort/discomfort	-1.50	-1.80

Test example 4

Sensory deodorization test:

the sensory deodorizing test for simulating the feces odor was performed on the above-obtained inventive product 4 according to the following procedure.

< test method for simulating fecal odor >

200ml of each of the present invention was placed in a 500ml cup (by volume), and the mixture was placed in a 10 liter bag with a cock, sealed, and then placed in a filter paper to which 2 drops of a simulated fecal odor were added, and the same evaluation was performed by the same evaluation method as in test example 3. The results are shown in Table 8.

TABLE 8

Deodorization test (simulated feces)Stink smell	Inventive product 4	Malodor only
			Malodor intensity	2.18	4.18
Comfort/discomfort	-1.45	-3.09

Example 3

Waterproof excrement treatment material:

the following amounts of the materials were mixed in the same manner as in example 1 to obtain a water-repellent excrement treatment material (inventive product 5). The numbers in the table are mass%.

TABLE 9

	Inventive product 5
		Wood chips of hinoki cypress	78.25
Paraffin wax	1
		Corn starch	20
Cellulosic component ^※1	0.3
		Synthetic zinc aluminosilicate	0.3
Mildew preventive	0.1
		Antibacterial agent	0.05

1: the same as Table 1

Test example 5

Sensory deodorization test:

the sensory deodorizing test was performed on the inventive product 5 obtained as described above according to the following procedure.

< test method for simulating fecal odor >

200ml of each inventive product was placed in a 500ml cup (by volume), and the mixture was placed in a 10 liter bag with a cock, sealed, and then placed in a container on which 2 drops of filter paper simulating feces odor were dropped, and sealed. Malodor was evaluated after 5 minutes, after 6 hours, and after 24 hours by the same method as in test example 3. The results are shown in Table 10.

TABLE 10

< chemical deodorization test >

200ml of the inventive product 5 was placed in a 500ml cup (by volume) in a 10 liter bag with a cock, and after adding ammonia and hydrogen sulfide, the mixture was filled with odorless air, the initial concentration of ammonia was adjusted to 150ppm, and the initial concentration of hydrogen sulfide was adjusted to 100ppm. The ammonia concentration and the hydrogen sulfide concentration were measured with the use of a test tube at room temperature (about 20 ℃) with time. The concentration of the odor component in the air pocket and the blank to which the present invention product 5 was added was measured over time, and 90% removal time (. Tau.0.1) was obtained. The results are shown in Table 11.

TABLE 11

Deodorization test	Inventive product 5
		Ammonia τ0.1	89min
Hydrogen sulfide τ0.1	150min

Test example 6

Antibacterial test:

the antibacterial test was performed on the inventive product 5 obtained as described above according to the following procedure.

< antibacterial test >

1.5g of the waterproof excrement treating material of the present invention item 5 was added to 3.5ml of 1/500 of the ordinary broth, dispersed by a vortex mixer, and left to stand for 30 minutes. After the dispersion was carried out again by a vortex mixer, 0.1ml of the bacterial liquid was added dropwise, and the mixture was cultured at 37℃for 24 hours. After 20ml of the reaction terminator was added, the number of viable bacteria (X) was confirmed. The number (Y) of viable bacteria was similarly confirmed in the control region to which the inventive product 5 was not added, and the antibacterial activity value was calculated by the following formula, and the antibacterial effect was judged to be exhibited by the antibacterial activity value of 2.0 or more. The results are shown in Table 12.

[ number 1]

Antibacterial activity value = log y-log x

TABLE 12

Antibacterial test	Inventive product 5
		Coli bacterium	Has antibacterial effect
Staphylococcus aureus	Has antibacterial effect

Example 4

Part of the excreta management material of the present invention is used:

the excrement treatment material of the present invention was used in an amount of about 10% when the same type of excrement treatment material commercially available was used. Even if only a part of the excrement treatment material of the present invention is used in this way, the deodorizing effect of excrement is exhibited.

Industrial applicability

The excrement treatment material of the present invention can be used for deodorizing excrement, particularly deodorizing the smell of feces such as hydrogen sulfide.

Claims

1. A fecal material characterized by comprising:

1 or more than 2 kinds of base materials selected from the group consisting of paper, plastic, clay mineral, water glass, activated clay, activated carbon, silica gel, hydrotalcite, titanium oxide, starch, bean dregs, corn starch, green tea leaves, coffee bean shells, crushed pulp, paper sand and wood dust; and

synthesizing zinc aluminosilicate.

2. The fecal treatment material of claim 1 wherein the synthetic zinc aluminosilicate is a layered zinc aluminosilicate-silica composite dry powder.

3. The fecal treatment material of claim 2 wherein the substrate is wood chips.

4. A water-repellent excrement treating material comprising the excrement treating material according to any one of claims 1 to 3, and a synthetic resin and/or wax.

5. The water-repellent excrement treatment material according to claim 4, wherein,

60 to 98 mass% of the base material,

the synthetic zinc aluminosilicate is 0.01-10% by mass,

the synthetic resin and/or wax is 0.1 to 10 mass%.

6. The water-repellent excrement treatment material according to claim 4 or 5, further comprising a fibrous component obtained by heating a wood part and/or leaves of a tree under reduced pressure by microwaves and drying at least a part of the heated wood part and/or leaves.

7. The water-repellent excrement treatment material as set forth in claim 6, wherein,

60 to 98 mass% of the base material,

the synthetic zinc aluminosilicate is 0.01-10% by mass,

the fibrous component is 0.1 to 10 mass%,

the synthetic resin and/or wax is 0.1 to 10 mass%.

8. A method for deodorizing excrement, comprising contacting the excrement treatment material according to any one of claims 1 to 7 with excrement.