JPH0797941B2 - Bed sand for pet excrement treatment and method for producing the same - Google Patents

Description

Detailed Description of the Invention

[0001]

An object of the present invention is to provide a novel structure of laying sand for treating excrement of pets such as dogs and cats and a method for producing the laying sand. The present invention aims to provide an ideal bed sand for treating feces and urine of pets, which allows coloration to be confirmed to have been used, and a method for easily and surely producing it.

[0002]

2. Description of the Related Art With the stabilization of social life, people can afford to appreciate and enjoy various things. The recent pet boom is one of the manifestations of this phenomenon, and dogs and cats are kept in many households regardless of location conditions such as urban areas and county areas. However, the daily worries of households that keep such pet animals are problems of manure, and various pet manure disposal products are lined up in supermarkets and department stores. A typical manure treatment product is paving sand to be spread in a pet toilet, and when roughly classifying what has been provided so far, it consists of mere crushed stone and artificially granulated ones, for example. , Paper fiber, crushed bentonite, kneaded material of bentonite and zeolite powder, and kneaded material of fibrous material and zeolite powder are each granulated.

In the case of mere crushed stone, of course, the stone itself is not water-soluble, so once it has clung to the feces, it cannot be flushed into the toilet together with the feces. , If you have a garden or a vacant lot, you can bury it in the soil, but in most cases, it is thrown away along with other garbage, and a new amount of sand is added to reduce the amount of waste. Is doing And once every few days, the whole sand covered with urine is washed and dried many times, and then reused.However, the smell once soaked does not easily disappear, so the economic advantage is Even if there is, the problem remains in removing the malodor, and the places where it can be used are limited.

On the other hand, the artificially granulated product has a deodorizing effect as well as its part is appropriately solidified when the manure is applied, and the solidified part is removed to remove it together with other garbage. If it is treated with water, or if it is water-soluble, it is possible to treat it by flushing it in the toilet, etc., which is considerably more expensive than using the above crushed stone, Since it is excellent in handleability and deodorizing effect, it has been adopted by a considerable number of pet lovers. However, even with this type of hard sand, if the treatment is delayed, the hardened portion loses moisture and collapses from the surrounding area, making it difficult to distinguish from the dirt that has not yet been soiled and pets again. In addition to the inconvenience of soiling the feet with the soil that has already been soiled when it is used, there is a problem in that it also interferes with the deodorizing effect.

Therefore, in the present invention, a completely new type of laying sand for treating excrement is developed in which the laid sand portion once exposed to manure is discolored so that it can be clearly distinguished from other portions. , And finally succeeded in realizing an economically advantageous discolored paving sand and a method for producing the same, and the constitution thereof will be described in detail below.

[0006]

The pet sand excrement treating sand of the present invention basically has the following constitution. That is, a granular core containing a clay containing fine silica sand powder for adjusting the disintegration property and the shape retention strength as a main component, and kneading and solidifying an appropriate amount of zeolite powder, a water absorbing agent, and methylene blue powder of a pigment, respectively, and the granular core. The surface sand layer for treating pet excrement and urine comprises a surface coating layer made of a solidification accelerating agent covering the entire surface of the above and a coloring agent adhered or permeated to the outer surface of the surface coating waste.

As the clay which is the main component of the granular core, it is convenient to separate and collect the clay containing about 15% in the silica sand produced in large quantities in Oishida area of Yamagata prefecture. Is. This contains a large amount of halloysite having a high water content, which is a type of clay for clay, and has excellent granulation properties, which is extremely convenient for molding the granular core body of the present invention. The fine silica sand particles to be mixed with the clay are the process of separating and recovering the clay from the silica sand, that is, the silica sand coarse particles are first separated by a mechanical classifier (for example, an Akins classifier, etc.), and then the sedimentation classifier (for example, , Sand corn, etc.) and a mechanical classifier (eg, rotary classifier) to separate finer silica sand particles, when adjusting the degree of separation, adjust the mixture ratio to an appropriate range. .

This adjustment affects the disintegration property by water after granulation and the shape retention strength after commercialization, and the increase in the mixing ratio improves the disintegration property, but decreases the shape retention strength. After being commercialized as paving sand, there is a risk that it will easily collapse. Therefore, the optimum range for guaranteeing the shape retention strength that does not reduce the commercial value and facilitating the disintegration due to excrement water and solidifying into a lump of dango will cause some difference depending on the size of the granular material. Through 50
If the content is in the range of wt%, preferably 40 wt%, the intended purpose can be achieved over the entire range of the particles having different sizes.

Zeolite powder is added to the above-mentioned clay, which is a main component as a deodorizing material for adsorbing offensive odors and bad odors emitted from pet manure, and it may be natural or artificial. An appropriate amount considering the deodorizing effect and economic efficiency, that is, an amount in the range of about 5% by weight with respect to the clay mixed with fine silica sand particles as the main component is adopted as the optimum value, and greatly exceeds this value. Not only affects the shape retention strength, but naturally becomes expensive per unit price, which is contrary to the object of the present invention. At about 1% by weight or 2% by weight, it becomes inexpensive. However, the deodorizing effect cannot be exhibited.

As the water absorbing agent, aerated stone powder, especially perlite powder (325 #) is effective. As an example of the ratio of these mixed substances, for example, about 10 to 15% by weight ratio with respect to the zeolite powder may be mixed. Methylene blue used as a pigment is a harmless white powder that develops an extremely bright blue color with a predetermined amount of water.
Clay containing fine silica sand particles, which is the main component, is 100 per cubic meter of rice.
In the case of a granular core having a diameter of about 2 g and a diameter of about 2 mm, it is sufficient to include a slight amount such that 2 to 3 methylene blue particles are mixed in one granular core. The granular core body thus formed is formed as an irregular, irregular-shaped granular material having a diameter of approximately 1 to 5 mm.
Desirable for stabilizing the foot support of pets.

The surface coating layer functions as a solidification accelerator for the granular core made of the above-mentioned materials, and is a relatively water-absorbing bentonite powder, especially a sodium bentonite powder (250 #, for example, Kunimine brand name). (Kunigel) is suitable and is formed by adhering it to the entire surface of the granular core body by the water content contained in the granular core body added at the time of granulation or by applying a melted product.
The colorant makes up the white color of bentonite, which is the surface coating layer, and helps methylene blue powder mixed inside the granular core to float up its blue color when it is colored by manure water. It fulfills its function,
In addition to white, colors such as yellow and light green are suitable, and are attached or impregnated into the surface coating layer and contained.

Hereinafter, a method for producing the spread sand for treating pet excrement of the present invention will be described.

[Invention Concerning Manufacturing Method] The manufacturing method of the present invention basically comprises the following first to fourth steps. [First step] Clay containing silica sand fine powder as a main component, zeolite powder,
Add a proper amount of water absorbing agent and methylene blue as a pigment, homogenize it, and regulate the methylene blue on a flat granulator so that it does not develop color. Forming process. The adjustment of the granulation state in this step is performed by adjusting the tilt angle of the rotary plate of the flat granulator while considering the balance between the water spraying ratio to be regulated and the silica sand fine powder mixing ratio in the main component. It is possible to efficiently manufacture a granular core body of a size that does not lose its shape.

[Second Step] The entire surface of the granular core body is controlled by adding a solidification accelerator powder and rotating and mixing the granular core body, which is formed in a large amount by controlling water content, into a rotary mixer. A step of forming a surface coating layer made of a solidification accelerator. In this step, the water contained in the granular core when water is regulated and sprinkled in the first step naturally proceeds so that the introduced solidification accelerator adsorbs the water. Depending on the amount of water to be solidified, the adhesion amount of the sodium-based bentonite powder may change, so that the amount of the solidified accelerator and the particle size of the solid core may be changed depending on the amount of water contained in the granular core. Consider to be.

[Third Step] A large amount of the granules having the surface coating layer formed thereon are again rotated and mixed in a rotary mixer, and a colorant having a desired color is sprinkled to form a white surface coating. A step of coloring the layer surface in a predetermined color. The coloring agent sprayed in this step is such that the surface coating layer adsorbs the moisture contained in the granular core and is in a substantially homogeneous wet state as a whole (however, the outer surface of the granular core is wet in the stage produced in the first step). The water content of the surface coating layer is much smaller than that in the state), and the colorant adheres to the water contained in the surface coating layer and partially dissolves, and part of it penetrates into the surface coating layer. In such a state, the entire surface is colored almost uniformly.

[Fourth step] A step of drying them with hot air to obtain a slightly fired state. The hot air is kept at a temperature of about 100 ° C. and the whole is uniformly dried, and only the surface coating layer is slightly fired (if the whole granules are completely fired, it will be difficult to disintegrate with water). It is implemented until is realized.

[0015]

[Other Related Manufacturing Method] The manufacturing method of the present invention having the above-mentioned steps as a basic constitution can be further improved as follows. [First step] Clay containing silica sand fine powder as a main component, zeolite powder,
Add a proper amount of water absorbing agent and methylene blue as a pigment, homogenize it, and regulate the methylene blue on a flat granulator so that it does not develop color. Forming process. This step is exactly the same as the above-mentioned basic production method of the present invention. Rotate and knead while spraying an appropriate amount carefully in a spray state on a flat granulator so that the pigment methylene blue does not develop color. Is a step of forming a large amount of amorphous granular cores.

[Second Step] A granular core formed by controlling the water content and formed in a large amount is put into a rotary mixer, and the solidified accelerator powder which has already been colored is added and rotated to mix the granular core. A step of forming a colored surface coating layer comprising a solidification accelerator on the entire surface of the body.
The solidification accelerator powder adopted in this step is different from that in the above-mentioned basic manufacturing method (that is, the bentonite dough which is the solidification accelerator remains as it is), that is, the step before the solidification accelerator powder is prepared, that is, It is a colored product obtained by solidifying a bentonite solution into a lump and mixing a desired colorant at the stage of the bentonite solution, and therefore, the coloring step of the third step in the above basic production method. However, in this related manufacturing method, the steps are simultaneously performed in the step of forming the surface coating layer. The other means for forming the surface coating layer on the granular core is exactly the same as the second step in the basic manufacturing method described above.

[Third step] A step of drying them by hot air and making them into a slightly fired state, which is the method for producing the spread sand for treating pet excrement of pets according to the above first to third steps, which is the basic production method described above. Is the first
It is characterized by the fact that the coloring step of the third step among them is completed at the same time in the second step. The colorant of the present invention is not particularly limited in color tone, and includes all colors including white, and has the function of increasing the commercial value.

[0018]

[Working] The pet sand excrement treatment bed sand of the present invention having the above-mentioned structure is mainly composed of clay particles mixed with a suitable amount of fine silica sand powder for adjusting the disintegrating property and the shape retention strength. As a component, it is possible to adjust the shape retention of the product and the disintegration by manure water in the use stage to the optimum conditions, and at the same time, it is formed inexpensively as a whole, Zeolite, which has an excellent deodorizing effect, a water-absorbing agent that quickly draws water in feces and urine into the granular core, and methylene blue, which is a pigment with extremely high color development due to water, are formed and combined to form colored pigments. The surface coating layer is coated with a solidification accelerator to provide excellent shaping and shape retention.

As a result, once the feces and urine of the pet is exposed to some amount of water, the water-absorbing agent quickly functions to suck the water into the granular core through the individual surface solidification accelerators, and the water-absorbing agent itself collapses. Since the surface of the granular core is exposed, the excrement water efficiently permeates inward from the surface solidification promoter by the water-absorbing agent inside the granular core, and surely promotes the color development by the water content of methylene blue. In addition to guaranteeing that the color can be seen from the exposed surface of the granular core, the solidification accelerator of the surface coating layer, which becomes disintegrated due to the permeating water, causes the outer surface of the granular core to be exposed. It plays the function of adhering the granular bodies to each other, and the function of adhering the parts with feces and urine to each other, making the parts with feces and urging dango.
The vivid blue color of methylene blue that emerges from the inside causes it to lose its color itself, discoloring the entire dango portion to a vivid blue color, and the surface coating layer originally colored in another color. Make a distinction at a glance from the paved sand part in the original color. Even if this dango-shaped portion begins to dry temporarily, the bright blue color developed by methylene blue is stopped as it is, and its contour (that is, the place where the manure is applied and the place where it is not) are like the spread sand before. There is no risk of making the boundary with) unclear.

On the other hand, as for the unpleasant odor of manure, the zeolite contained in the granular core 1 in an optimum amount of the minimum necessary amount is surely adsorbed, and the bad odor from the manure is filled around. It will work like no. Therefore, the pet buyer should be able to reliably remove only the soiled part of the spread sand at his convenience and at any time, and only if it is necessary to remove it and replenish the lost spread sand. , It is possible to always use only new paving sand in the pet toilet.

In addition, the production method is to adjust the amount of fine silica sand powder in clay to an appropriate amount by increasing or decreasing so as to realize the optimum disintegrating property and shape-retaining strength, and the water content thereof is a coloring reaction of methylene blue. In addition to restricting to a value that does not cause, in the step of forming the surface coating layer immediately after, if there is no mistake even the operation to suck as much water as possible in the granulated granular core, A manufacturing method that enables the manufacturing of a conventional flat granulator and a rotary mixer in combination, and in a further improved manufacturing method, finally, a colored and makeup spread sand is manufactured. This makes it possible to implement the work process by one process less than the basic manufacturing method of the present invention.

[0022]

[Working] Therefore, the pet sand excrement treatment pet pet of the present invention can remove the soil dust of the soiled portion only by taking the condition that the previous ones are hardened in a dango shape as a guide. Is the dirty sand part,
As a guideline for the removal of the spread sand part, which becomes dry and crumbles and mixes with the unspoiled spread sand part to make it indistinguishable, a bright blue color that does not change even after drying Since it is possible to implement it at any time with certainty, it is less likely that the pet's feet will be soiled and the floor of the building will be unclean, and above all, the dirty sand part will be It has an excellent characteristic that it hardly remains in the toilet for a long time and becomes a source of offensive odor and makes the environment in the building unpleasant.

Moreover, not only the fine silica sand powder in the clay, which is the main component, contributes to the shape-retaining property, but also plays the role of a bulking agent. It is possible to provide as a relatively inexpensive one, and therefore, until now, this type of thing was mainly composed mainly of zeolite and was expensive, which was an obstacle to widespread use. However, many pet enthusiasts can use it at all times without worrying about the cost burden, especially in urban areas. It is expected that this will be highly evaluated as a very important feature for people who have pets in households with poor environment.

On the other hand, according to the method for producing paving sand of the present invention, fine sand powder that affects the disintegration property, shape retention strength and unit price although the paving sand has a new function with a new function. As long as care is not taken in a small part, such as consideration for the balance between the mixing ratio and the moisture adjustment condition, it is possible to manufacture using almost the same conventional machines and devices. Therefore, in order to provide the spread sand of the present invention at low cost, this manufacturing method is an extremely advantageous manufacturing method. In particular, in the further improved manufacturing method, the number of manufacturing steps can be reduced by one, so that the effect becomes even more remarkable.

As mentioned above, the present invention has a very useful function in terms of shape retention and disintegration property, color development reaction, color fixing property, dango conversion performance, etc.
Moreover, as one of the effects of using silica sand fine powder, it is possible to provide it at a low price. Therefore, although various paving sands are provided in the pet boom, it is still difficult to treat manure. It is expected to make a great contribution to many pet lovers who are in a poor state.

Claims (3)

[Claims] 1. A zeolite powder, a water-absorbing agent, which is mainly composed of clay containing fine silica sand powder for adjusting disintegration property and shape retention strength .
And a particulate core obtained by kneading and solidifying an appropriate amount of methylene blue powder of a pigment, a surface coating layer composed of a solidification accelerator covering the entire surface of the particulate core, and coloring attached or permeated to the outer surface of the surface coating layer. Laying sand for pet excrement treatment, which consists of food and drink. 2. A zeolite powder, a water-absorbing agent, which is mainly composed of clay containing fine silica sand powder for adjusting disintegration property and shape retention strength .
And the appropriate amount of methylene blue powder of the pigment is mixed and homogenized, and then a large amount of the granular core is obtained by rotating and kneading while spraying water on the flat granulator while spraying water so that the methylene blue powder of the pigment does not develop color. The first step of forming,
In the first step, the granular core containing the limited water content is put into a rotary mixer, and a solidification accelerator powder is added thereto, and the mixture is rotated and mixed to obtain a white color containing the solidification accelerator on the entire surface of the granular core. The second step of forming the surface coating layer, the step of coloring the white particles to a predetermined color by spraying and adhering or permeating the coloring agent on the surface of a large amount of the particles having the white surface coating layer formed thereon. 3rd step, 4th step of drying colored granules with hot air to obtain a slightly fired state, and the method for producing spread sand for pet excrement treatment according to 1st to 4th steps. 3. A zeolite powder, a water-absorbing agent, which is mainly composed of clay containing fine silica sand powder for adjusting disintegration property and shape retention strength .
And the appropriate amount of methylene blue powder of the pigment is mixed and homogenized, and then a large amount of the granular core is obtained by rotating and kneading while spraying water on the flat granulator while spraying water so that the methylene blue powder of the pigment does not develop color. The first step of forming,
The entire surface of the granular core is prepared by introducing the granular core containing the limited moisture in the first step into a rotary mixer and then adding and solidifying the solidification accelerator powder colored in advance with a colorant and mixing the powder. A second step of forming a surface coating layer composed of a solidification accelerator colored in a predetermined color, a third step of drying the colored granules with hot air to give a slightly fired state, and the above first to third steps A method for producing a bed sand for treating pet excrement according to claim 1.