JPH08140514A - Treating agent for excreted pet urine - Google Patents

Abstract

PURPOSE: To obtain the subject treating agent at a low cost, excellent in excreted pet urine absorptivity and easy to dispose, comprising biodegradable pulp, a specific cellulose ether and a surfactant having salting-out property. CONSTITUTION: This combustible treating agent for excreted pet urine comprises (A) biodegradable pulp (pref. cotton-derived pulp linter), (B) a cellulose ether selected from hydroxyethylmethyl cellulose, hydroxypropylmethyl cellulose and hydroxyethylethyl cellulose, and (C) a surfactant having salting-out property (pref. nonionic surfactant and/or dodecylbenzenesulfonate 11-17 in HLB) pref. in the weight ratio A/B/C of 100:(1-50):(0.1-3). It is recommended that this agent be prepared by mixing the component A with the component B followed by adding the component C and water to the resultant mixture and then conducting a granulation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pet urine disposal agent for pets such as cats and puppies.

[0002]

2. Description of the Related Art As a urine treating agent for pets for pets, granulated granules of water-absorbing inorganic minerals such as zeolite and bentonite are commercially available. In this granulated product, the particles that have absorbed urine gather together and harden so that they can be distinguished from the particles that have not absorbed urine. Urinary treatment agents using these inorganic minerals are not sufficiently biodegradable and combustible. For this reason, it has been impossible to incinerate the lumps of powder that have absorbed urine or to dispose of them in the toilet by microbial decomposition.

Clay Science Journal, Vol. 33, No. 4, 193-202
Page (1994) “Current status and new developments of bentonite utilization” describes an inorganic mineral cat sand containing zeolite and bentonite and a flammable cat sand containing pulp chips as pet urine treatment agents. Is listed.

These cat sands are prepared by adding a binder to an organic water-absorbing substance such as pulp paper and water-absorbing polymer, mixing them with water, granulating the mixture into particles having a diameter of 3 mm to 20 mm, and then drying. It is a thing. The granulated product absorbs the urine of pet pets, and the binder adhering to the surface of the agglomerates dissolves, gathers and hardens, and can be collected separately from the particles that have not absorbed the urine. In addition, cat litter has been developed that can be purified by microorganisms in the purification tank so that the clumps are divided in the flush toilet.

Cats and puppies bred indoors as pets have a habit of not urinating until the urination part is absorbed by cat sand and cannot be seen, or does not urinate if the area around the urination site is unsanitary. There is. For this reason, it is desired that the urine disposal agent such as cat sand is such that the particles are hardened immediately after absorbing the urine and easily taken out and discarded.

It is desirable that the inorganic mineral or the organic material that serves as the water absorption base of the urine treatment agent should be one that has a particularly strong absorption capacity for urination and a particle size suitable for water absorption. However, it has been difficult to commercialize these inorganic minerals and organic materials as inexpensive urine treatment agents. Granulation of sludge, paper waste, paper pulp produced in the paper industry, or rice husk powder, okara, etc. produced as agricultural waste can produce low-priced urine treatment agents, but these industrial wastes have a considerable variation in quality. large. In order to produce waste products with large quality variations as urinary treatment agents, pretreatment of crushing the waste materials to a specified shape and drying is indispensable. turn into.

In the case of sulphurizing industrial wastes, various water-soluble polymers such as starch are added. However, even if the inorganic mineral or organic material, which is the water absorption base of the urination treatment agent, has strong urinary absorption capacity, the water-soluble polymer adheres to the surface and the urination absorption capacity of the processing agent decreases, or In some cases, the amount of the treatment agent consumed became extremely large because the absorption portion of the product spreads more than necessary and the amount of solidification increases with a single absorption of urine.

[0008]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned problems and is excellent in absorption of urination.
It is an object of the present invention to provide a pet urine treatment agent that can be easily disposed of and can be manufactured at a low price.

[0009]

Means for Solving the Problems The pet urine treatment agent of the present invention made to achieve the above object is selected from pulp having biodegradability, hydroxyethylmethylcellulose, hydroxypropylmethylcellulose and hydroxyethylethylcellulose. It is composed of a combustible material, containing at least one kind of cellulose ether and a surfactant having a salting-out property.

The weight ratio of pulp, cellulose ether and surfactant is 100 parts by weight: 1 to 50 parts by weight: 0.
1 to 3 parts by weight is preferable.

The weight ratio of cellulose ether is 10 parts by weight of pulp.
When the amount is less than 1 part by weight with respect to 0 part by weight, the adhesive force is insufficient and the particles that absorb urine do not solidify. If it exceeds 50 parts by weight, when it is poured into the toilet for disposal, the dispersion may be delayed and the outflow pipe may be clogged. When the weight part of the surfactant is less than 0.1 part by weight with respect to 100 parts by weight of pulp, the wettability of the urine treatment agent to water is not improved. If it exceeds 3 parts by weight, the effect obtained by adding a large amount of the activator cannot be exhibited.

The pulp is preferably cotton-derived Harlinter. Hull linter is produced as a by-product in the oil industry from cottonseed to cottonseed oil and is further refined to be used as a raw material for linter pulp. Since it is a short fiber that is already close to powder,
There is no need to perform crushing, crushing, dispersing, etc. again like linter pulp and then mixing with other blends. Further, since it is biodegradable and flammable, it is suitable as a component of a pet urine treatment agent that requires easy disposal.

[0013] Cellulose ether is a water-soluble polymer which gives a pet urine treatment agent an adhesive force for hardening after absorbing urine. Specifically, they are hydroxyethyl methyl cellulose, hydroxypropyl methyl cellulose, and hydroxyethyl ethyl cellulose. These may be used alone or in combination.

2% by weight of a 2% by weight aqueous solution of cellulose ether
The viscosity when measured at 0 ° C. is preferably 15,000 cp or more. If it is less than 15,000 cp, the treatment agent that has absorbed urine may not be solidified and may not be separated and taken out.

In addition to the above-mentioned cellulose ethers, it may be possible to add a cellulose ether such as carboxymethyl cellulose, hydroxyethyl cellulose or hydroxypropyl cellulose, or a water-soluble binder such as polyvinyl alcohol, polyethylene oxide or polyacrylamide to the urination treatment agent. However, if a large amount is blended, sufficient viscosity may not be obtained due to the influence of salts during urination, or the hardness of the granulated product may become soft and shape retention may not be obtained. Further, although methyl cellulose has the effect of absorbing urine and maintaining the shape retention of the treating agent, it may dissolve at high urine temperature.

The surfactant has a hydrophilic-lipophilic ratio (HLB).
Is a nonionic surfactant of 11 to 17 and / or dodecylbenzene sulfonate. HL
B is an index showing the balance between hydrophilicity and lipophilicity of the surfactant. When the HLB is out of the above range, the surfactant added to water cannot incorporate the oil particles as a micelle structure.

Nonionic surfactants include higher fatty acid esters of polyoxyethylene, fatty acid esters of sorbitan, and fatty acid esters of polyoxyethylene sorbitan ether. Specifically, the higher fatty acid ester of polyoxyethylene includes polyoxyethylene laurate and polyoxyethylene stearate, and the fatty acid ester of sorbitan includes sorbitan stearate.
Fatty acid esters of polyoxyethylene sorbitan ether include polyoxyethylene laurate. These may be used alone or in combination.

The method for producing the pet urine treatment agent is as follows. A pulp having biodegradability such as Harlinter and cellulose ether are mixed, and a surfactant and water are added to this mixture to granulate. Granulation may be performed by any method as long as a granulated product having a desired shape can be obtained, and examples thereof include forced granulation and self-bundling. Forced granulation includes extrusion granulation and stirring granulation, and self-bundling granulation includes rolling granulation.

In order to improve the absorbability of a urinary treatment agent in addition to pulp, cellulose ether, and a surfactant having biodegradability such as Harlinter, a water-absorbing inorganic mineral such as bentonite or a water-absorbing agent that does not become incombustible. A polymer, polyvinyl alcohol, carboxymethyl cellulose, or the like may be added, but the biodegradability of the urine treatment agent may decrease.

It is also possible to mix an organic material in an amount that does not impede the absorption of urine by the treatment agent, such as Harlinter. As the organic material, any material such as rice husk, wood flour, and grain shell can be used as long as it is a combustible substance having excellent biodegradability and can be granulated.

[0021]

The pet urine treatment agent of the present invention is a combustible material containing a pulp having biodegradability such as Hallinter as a water-absorbing base, and is therefore easily discarded by microbial treatment or combustion. Since the fiber length of the pulp is considerably shorter than that of ordinary linter pulp and almost powdery, it can be mixed with cellulose ether or a surfactant without fine pulverization.
Therefore, the manufacturing process of the urine treatment agent is simplified and the treatment agent can be manufactured at a low cost.

[0022]

EXAMPLES Examples of the present invention will be described in detail below.

Example 1 100 parts by weight of Harlinter (manufactured by Okamura Oil Co., Ltd.) having a fiber length of 0.5 to 1 mm and hydroxyethylmethylcellulose (SEB-15T manufactured by Shin-Etsu Chemical Co., Ltd.)
5 parts by weight of a 2 wt% aqueous solution viscosity 15000 cP) were mixed in a 5 liter mortar mixer. Then, 0.5 parts by weight of polyoxyethylene laurate as a surfactant was added to this mixture together with 25 parts by weight of water to granulate. The obtained granulated product was dried with hot air at 0 ° C. for 3 hours to produce a granulated product that passed through a wire net having an opening of 2 mm.

The resulting granulated product was evaluated for artificial urine water absorption time, solidified state, hose passing property of solidified product dispersion, and flammability, and the results are shown in Table 1.

The artificial urine water absorption time is the time during which the granulated product contained in a 500 cc metal container absorbs 10 cc of 1% by weight saline added as urine of artificial pets. The water absorption time of 1 second or less was evaluated as good, and the water absorption time of 2 seconds or more was evaluated as poor.

The evaluation of the solidified state was evaluated as good if the solidified product could be taken out and left by hand after absorbing water, and as bad if the solidified product taken out by hand was broken during transportation.

The hose passing property of the solidified product dispersion is 500c.
c) The solidified material placed in the beaker has a diameter of 5 mm after 1 second,
It is flowed from the top of a funnel with a 50 cm long hose attached, and it is evaluated whether or not the solidified material is dispersed and flows to the discharge part without being blocked in the hose. Those that dispersed and flowed without clogging were considered good, and those that clog were considered poor.

The flammability was evaluated by observing whether burning occurs by placing a granulated product which has absorbed 200 cc of artificial urine and solidified and placed in a heated electric furnace for 8 hours at 700 ° C.
Those that burned were rated as good, and those that did not burned were rated as bad.

Example 2 In the same manner as in Example 1, 100 parts by weight of Harlinter cut into a fiber length of 0.5 mm or less and hydroxypropylmethylcellulose A (90-S manufactured by Shin-Etsu Chemical Co., Ltd.)
H3000 2% by weight aqueous solution viscosity 30000 cP) 1 part by weight,
A granulated product was produced from 1 part by weight of polyoxyethylene stearate and 20 parts by weight of water. The artificial urine water absorption time, the solidified state, the hose passing property and the flammability of the solidified product dispersion of the obtained granulated product were evaluated, and the results are shown in Table 1.

Example 3 In the same manner as in Example 1, 100 parts by weight of Harlinter cut into a fiber length of 0.5 to 1 mm or less, hydroxypropylmethylcellulose B (manufactured by Shin-Etsu Chemical Co., Ltd.)
65SH-15000 2 wt% aqueous solution viscosity 15000 cP) 30
A granulated product was produced from 3 parts by weight of sorbitan stearate and 25 parts by weight of water. The artificial urine water absorption time, the solidified state, the hose passing property and the flammability of the solidified product dispersion of the obtained granulated product were evaluated, and the results are shown in Table 1.

Example 4 In the same manner as in Example 1, 100 parts by weight of Harlinter cut to a fiber length of 0.5 mm or less, 50 parts by weight of hydroxyethyl ethyl cellulose (E-481FQ, 2% by weight aqueous solution viscosity manufactured by Beror Co., 100,000 cP), A granulated product was produced from 2 parts by weight of polyoxyethylene sorbitan laurate and 25 parts by weight of water. The artificial urine water absorption time, the solidified state, the hose passing property and the flammability of the solidified product dispersion of the obtained granulated product were evaluated, and the results are shown in Table 1.

Example 5 In the same manner as in Example 1, 100 parts by weight of Harlinter cut into a fiber length of 0.5 to 1 mm or less, 5 parts by weight of hydroxypropylmethylcellulose A, carboxymethylcellulose (manufactured by Daicel Chemical Industries Ltd. # 190) 5 parts by weight, 2 parts by weight of sodium dodecylbenzene sulfonate, and 25 parts by weight of water were used to produce a granulated product. The artificial urine water absorption time, the solidified state, the hose passing property and the flammability of the solidified product dispersion of the obtained granulated product were evaluated, and the results are shown in Table 1.

Example 6 By the same method as in Example 1, 100 parts by weight of Harlinter cut to a fiber length of 0.5 mm or less, 50 parts by weight of hydroxyethyl methyl cellulose, 50 parts by weight of carboxymethyl cellulose, 1 part by weight of polyoxyethylene stearate. Parts and 30 parts by weight of water to produce a granulated product. The artificial urine water absorption time, the solidified state, the hose passing property and the flammability of the solidified product dispersion of the obtained granulated product were evaluated, and the results are shown in Table 1.

Comparative Example 1 In the same manner as in Example 1, from 100 parts by weight of Harlinter cut into a fiber length of 0.5 to 1 mm or less, 5 parts by weight of carboxymethyl cellulose, 2 parts by weight of sorbitan stearate, and 25 parts by weight of water. A granulated product was produced. The artificial urine water absorption time, the solidified state, the hose passing property and the flammability of the solidified product dispersion of the obtained granulated product were evaluated, and the results are shown in Table 1.

Comparative Example 2 In the same manner as in Example 1, a granulated product was produced from 100 parts by weight of Halllinter cut into a fiber length of 0.5 to 1 mm or less, 5 parts by weight of hydroxyethylmethylcellulose, and 25 parts by weight of water. . The artificial urine water absorption time of the obtained granulated product, the solidified state, the hose passing property of the solidified product dispersion, and the flammability were evaluated,
Table 1 shows the results.

Comparative Example 3 In the same manner as in Example 1, a granulated product was produced from 100 parts by weight of Hallinter cut into a fiber length of 0.5 mm or less, 2 parts by weight of polyoxyethylene laurate, and 25 parts by weight of water. . The artificial urine water absorption time, the solidified state, the hose passing property and the flammability of the solidified product dispersion of the obtained granulated product were evaluated, and the results are shown in Table 1.

Comparative Example 4 In the same manner as in Example 1, 100 parts by weight of bentonite,
A granulated product was produced from 25 parts by weight of water. The artificial urine water absorption time, the solidified state, the hose passing property and the flammability of the solidified product dispersion of the obtained granulated product were evaluated, and the results are shown in Table 1.

[0038]

[Table 1]

As shown in Table 1, the granulated products of Comparative Examples 1 to 4 were inferior in performance to the granulated products of Examples 1 to 6 because the predetermined cellulose ether or surfactant was not added. There is.

Claims (5)

[Claims] 1. A flammable material comprising a biodegradable pulp, at least one kind of cellulose ether selected from hydroxyethyl methyl cellulose, hydroxypropyl methyl cellulose and hydroxyethyl ethyl cellulose, and a salting-out surfactant. A pet urinary treatment agent characterized by comprising: 2. The weight ratio of the pulp, the cellulose ether, and the surfactant is 100 parts by weight: 1 to 5
0 parts by weight: 0.1 to 3 parts by weight, The pet urine disposal agent according to claim 1, which is characterized in that. 3. The pet urine treatment agent according to claim 1, wherein the pulp is a cotton-derived Harlinter. 4. The surfactant has a hydrophilic / lipophilic ratio of 1
1 to 17 nonionic surfactant or / and dodecylbenzene sulfonate.
4. The pet urine treatment agent according to any one of 3 to 3. 5. The nonionic surfactant is at least one nonionic surfactant selected from higher fatty acid esters of polyoxyethylene, fatty acid esters of sorbitan, and fatty acid esters of polyoxyethylene sorbitan ether. The pet urine disposal agent according to any one of claims 1 to 4.