JPH1118603A - Sheet for pet excretion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the leakage of urine, etc. to the outside of a sheet for pet excretion since when a pet stands on the sheet and evacuates, the pet often discharges on the part of the sheet corner. SOLUTION: The central part of a liquid absorbing zone Sa in which an absorbing body of a sheet S for pet excretion exists is made into a colored part S1 such as blue one and a liquid absorbing zone around it is made into an uncolored part S2. A pet trained to excrete on the colored position, the pet stands on the colored part S1 and discharges. In the case of evacuating at the corner of the colored part S1, since urine, etc. are absorbed in the liquid absorbing zone of the uncolored part S2, urine, etc. are hardly led to the outside of the sheet.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pet excretion sheet used on a floor or the like for treating pet excrement kept indoors or the like. The present invention relates to a pet excretion sheet that is absorbed without leaking from the sheet.

[0002]

2. Description of the Related Art Pet excretion sheets are used to treat excrement of pets kept at home. FIG. 6A is a perspective view of a conventional pet excretion sheet, and FIG.
(B) is a sectional view thereof. This pet excretion sheet S
Is composed of a topsheet 1 such as a liquid-permeable nonwoven fabric, a liquid-impermeable backsheet 2, and an absorber 3 interposed between the topsheet 1 and the backsheet 2. The absorbent body 3 includes an absorbent core 3a and absorbent papers 3b, 3c such as tissue paper covering the upper and lower surfaces of the absorbent core 3a.
Consisting of The absorbent core 3a is made of, for example, pulverized pulp 4 and a highly absorbent polymer 5.

[0005] The portion where the absorber 3 is provided is a liquid absorption region Sa that can absorb excrement such as urine. The periphery thereof forms a joint portion Sb in which the top sheet 1 and the back sheet 2 are joined via a hot melt adhesive or are adhered by heat welding or the like. In the conventional pet excretion sheet S, for example, the absorbing paper 3b is colored blue. Therefore, the pet excretion sheet S shown in FIG.
In this case, the entire liquid absorbing region Sa looks blue through the topsheet 1.

[0004]

When a pet such as a dog is excreted on a sheet colored blue, for example, during childhood, the pet is excreted on a sheet colored blue thereafter. become. As shown in FIGS. 6A and 6B, when the entire liquid absorption region Sa is colored blue or the like,
The pet is excreted on the colored liquid absorbing area Sa. However, at this time, the butt portion of the pet becomes an end portion of the liquid absorbing region Sa, and excretion is easily performed at the end portion of the liquid absorbing region Sa. For this reason, urine or the like easily leaks out of the liquid absorption area Sa and soils the floor or the like. FIG.
As shown in (B), in the conventional pet excretion sheet S, the absorber 3 is flat. In such a structure, urine that cannot be completely absorbed by the absorber 3 at the end of the liquid absorption region Sa is likely to flow toward the floor surface.

The present invention solves the above-mentioned conventional problems. When a pet recognizes a colored area and excretes it, urine and the like are firmly absorbed in a liquid absorbing area and do not leak to a floor or the like. An object of the present invention is to provide a pet excretion sheet as described above.

[0006]

SUMMARY OF THE INVENTION The present invention provides a pet excretion having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber interposed between the top sheet and the back sheet. In the sheet, a central portion of the liquid absorbing region where the absorber is present is colored, and the liquid absorbing region is non-colored in an adjacent portion so as to surround the entire periphery of the colored portion. Things.

[0007] In the above, the liquid absorbing region may have a structure in which an uncolored second absorber is overlaid on the outer peripheral portion of the colored first absorber.

In this case, the top sheet and the first absorbent body are pressure-formed at least in a central portion of the liquid absorbing region, and the boundary sheet between the first absorbent body and the second absorbent body is formed. ,
It is preferable that a step is formed on the topsheet.

For example, the absorber comprises an absorbent core and an absorbent paper covering the surface thereof. At the colored portion, at least one of the absorbent core and the absorbent paper is colored, and the color is visually observed through a topsheet. It will be what is possible.

[0010] The term "uncolored" in the present invention means the original color of the material constituting the pet excretion sheet, that is, white or a color close thereto. For example, a pulp fiber used for a pet excretion sheet becomes white as the purity of cellulose constituting the pulp fiber is increased by purification and bleaching.

The coloring in the present invention means that the coloring is not uncolored. That is, it is a color other than white and is made by adding a pigment or dye to the original color of the material. The color of the colored portion in the present invention can be blue, pink, or any color.

When a pet such as a dog excretes on a sheet colored in blue or the like during childhood, the pet has a habit of always excreting on a sheet colored in blue or the like. .

In the present invention, only a predetermined area of the central portion of the liquid absorbing region in which the absorber intervenes is defined as a colored portion, and an uncolored liquid absorbing region is provided in a portion surrounding the outer periphery. Therefore, as a result of the disciplined pet recognizing the colored part and excreting it, even if urine or the like is excreted at the end of the colored part, urine or the like leaks out of the pet excretion sheet. It can be prevented from leaving. Since the uncolored liquid absorbing region exists outside the colored portion, urine discharged at the end of the colored portion or the uncolored portion is absorbed by the absorber in the uncolored liquid absorbing region. is there.

In particular, in a sheet having a structure in which a non-colored absorber is stacked around the colored first absorber, urine and the like excreted at the end of the colored portion are separated from the first absorber by the first absorber. Therefore, urine and the like cannot be leaked out of the sheet.

The top sheet and the first absorber are pressure-formed at the center of the liquid absorbing area, so that the first sheet is formed.
When a step is formed between the second absorber and the second absorber, a bank is formed such that the uncolored liquid absorbing region rises with a step around the colored portion. Therefore, urine and the like excreted at the end of the colored portion is less likely to leak to the outside of the sheet.

As a specific method for forming a colored portion in the liquid absorbing region, there are liquid absorbing fibers such as pulp forming the absorbing core, a high absorbing polymer contained in the absorbing core, and the absorbing core. There is a method of coloring absorbent paper such as tissue paper provided on the surface of the paper. Alternatively, an adhesive such as a hot melt for bonding the absorber and the topsheet may be colored. In addition, it is also possible to color the topsheet.

Further, the pet excretion sheet of the present invention may be formed by providing an uncolored absorber on the entire surface of the pet excretion sheet, and sandwiching a colored tissue between the absorber and the topsheet. It is possible.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 (A) and 1 (B) are perspective views of the pet excretion sheet S of the present invention as viewed from above the top sheet 1, FIG.
(A), (B) and FIG. 3 are cross-sectional views for different configurations of the pet excretion sheet S. The pet excretion sheet S of the present invention
As shown in FIGS. 1A and 1B, the entirety of the pet excretion sheet except for the joint Sb around the excretion sheet is a liquid absorption area Sa.
When the pet excretion sheet S is viewed from the surface, the central portion of the liquid absorbing area Sa is the colored portion S1, and the portion surrounding the entire periphery is the uncolored portion S2. Pet excretion sheet S
The whole is a square or a rectangle, and the colored portion S1 is shown in FIG.
(A) square or rectangular as shown in FIG.
An ellipse (oval) or a circle as shown in FIG.

As shown in FIG. 2A, a second absorber 12 is provided so as to surround the outer periphery of the first absorber 11 in the liquid absorbing region Sa. In the pet excretion sheet S, the liquid absorption area Sa is formed on substantially the same surface, and a liquid-permeable top sheet 1 is laminated on the surface, and a liquid-impermeable back sheet 2 is laminated on the back surface. At the outer peripheral portion of the liquid absorbing region Sa, the top sheet 1 and the back sheet 2 are joined by a hot-melt adhesive h (shown in FIG. 3) or joined by heat welding to form a joint Sb.

In FIG. 2B, between the top sheet 1 and the back sheet 2, a first absorber 11 is provided on almost the entire surface of the liquid absorbing area Sa. This first
The second absorber 12 is superimposed on the outer peripheral portion of the absorber 11. Also in this case, the top sheet 1 and the back sheet 2 are joined at the outer periphery of the portion where the second absorber 12 is provided to form a joint Sb.

The topsheet 1 is, for example, a point-bonded nonwoven fabric. The point bond nonwoven fabric is formed from a synthetic fiber such as a polyethylene fiber, a polypropylene fiber, or a composite fiber thereof. Alternatively, it is formed from a water-absorbing fiber such as rayon fiber and the synthetic fiber. In the pet excretion sheet of the present invention, the pet must be able to recognize the colored portion. Therefore, when the colored portion is formed by the absorber, the topsheet is a thin sheet or a sheet having a shape that allows the colored portion of the absorber to be seen through. The liquid-impermeable back sheet 2 is a polyethylene (PE) film, a vinyl sheet, or the like.

As shown in an enlarged manner in FIG. 4, the first absorbent body 11 includes an absorbent core in which a highly absorbent polymer 11b is contained in absorbent fibers 11a such as pulverized pulp, and a tissue paper covering the absorbent core. And the like. Similarly, in the second absorbent body 12, the absorbent core in which the absorbent fiber 12a contains the superabsorbent polymer 12b is used as the absorbent paper 12a.
c. In this example, the first absorber 1
1 is colored so as to exhibit a color such as blue when viewed from the surface, and the second absorber 12 is not colored. Therefore, in FIG. 2A, the color of the first absorber 11 can be seen through the topsheet 1, and the portion where the first absorber 11 is provided becomes the colored portion S1. Further, since the second absorber 12 provided so as to surround the periphery thereof is not colored, when viewed from the front of the topsheet 1, it is a white non-colored portion S2.

In FIG. 2B, a second absorber 12 is superimposed on the colored first absorber 11 so as to surround the outer peripheral portion. The central portion where only the first absorber 11 is provided is a colored portion S1 that looks blue or the like through the topsheet 1, and the outer peripheral portion where the second absorber 12 is superimposed is white. This is a visible uncolored portion S2.

In order to make the first absorbent body 11 look colored through the topsheet 1, a colored paper may be used as the absorbent paper 11c covering the absorbent core. Alternatively, the absorbent fibers 11a such as pulp and / or the superabsorbent polymer 11b constituting the absorbent core may be colored. As a method for coloring the absorbent fibers 11a, a pigment such as phthalocyanine blue can be sprayed on the absorbent fibers. Alternatively, as shown in FIG. 5, a hot melt type adhesive h1 colored blue or the like is interposed between the first absorber 11 and the top sheet 1 to form a colored portion S1.
May be formed. When configured as described above, FIG.
(A) and (B) are obtained. That is, the colored portion S1 is formed at the center of the liquid absorbing region Sa, and the uncolored portion S2 is formed so as to surround the periphery.

In the case shown in FIG. 2B, since a step (i) is formed at the boundary between the first absorber 11 and the second absorber 12, excretion occurs at this portion. Urine and the like can be prevented from flowing to the outside of the sheet S. Therefore, FIG.
As shown in (1), when the topsheet 1 and the first absorber 11 are pressure-formed with a roller or the like in the colored portion S1,
The step (i) can be formed more clearly at the boundary between the absorber 11 and the second absorber 12. Further, the embossing may be performed by using a roller so that fine irregularities (ii) are continuously formed on the surfaces of the first absorbent body 11 and the topsheet 1 by this pressing.

Since the step (i) is clear by the pressure molding, urine excreted at the end of the colored portion S1 can be blocked by the step (i). In addition, if unevenness (ii) is formed on the first absorbent body 11 and the topsheet 1 and the step (i) is clearly formed by applying pressure, when the pet rides on the sheet S, By feeling, it is possible to recognize whether it is the colored portion S1 or the non-colored portion S2, and it is easy to excrete within the range of the colored portion S1.

A method of using the pet excretion sheet S will be described. When the pet is in childhood, a pet excretion sheet in which the entire surface of the liquid absorption area Sa is colored blue or the like as shown in FIG.
By excreting on top of that, the pet remembers where to excrete. After the pet has become accustomed to excretion on a sheet colored blue or the like, the pet excretion sheet of the present invention as shown in FIG. Use S.

The disciplined pet recognizes that the area colored in blue or the like is a place to excrete. At this time, even if the excretion part is located at the end of the colored part S1, since the uncolored part S2 having the absorption function exists on the outer peripheral part, urine and the like are surely absorbed by the absorber of the non-colored part S2. To be absorbed. Therefore, urine and the like do not leak out of the pet excretion sheet S. In particular, as shown in FIG. 2B and FIG. 3, when the uncolored portion S2 is higher in bulk than the colored portion S1 and the step (i) is formed at the boundary portion, the surrounding uncolored portion is formed. The liquid absorption capacity in the section S2 is increased. That is, urine and the like excreted at the end of the colored portion S1 can be easily absorbed by the non-colored portion S2, so that urine and the like hardly flow out of the sheet.

Further, in the present invention, the area of the colored region of the sheet can be changed in several stages in accordance with the growth of the pet. In addition, since pets have different body sizes depending on types and individual differences, it is preferable to use a pet excretion sheet that matches each body size.

[0030]

The pet excretion sheet of the present invention described in detail above allows the excreted urine and the like to be absorbed even in the uncolored portion even if the pet is excreted at the end of the colored portion or the uncolored portion. become. Therefore, it becomes difficult for urine and the like to leak to the outside of the sheet.

[Brief description of the drawings]

1 (A) and 1 (B) are perspective views of a pet excretion sheet of the present invention as viewed from the surface from above,

FIGS. 2A and 2B are cross-sectional views of a pet excretion sheet of the present invention.

FIG. 3 is an enlarged sectional view of an end of the pet excretion sheet,

FIG. 4 is an enlarged cross-sectional view showing a configuration of an absorbent body for a pet excretion sheet of the present invention.

FIG. 5 is an enlarged cross-sectional view showing a configuration of an absorbent body for a pet excretion sheet of the present invention.

FIG. 6A is a perspective view of a conventional pet excretion sheet,
(B) is a sectional view thereof,

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Top sheet 2 Back sheet 11 1st absorber 11a Absorbing fiber 11b Superabsorbent polymer 11c Absorbing paper 12 2nd absorber 12a Absorbing fiber 12b Superabsorbent polymer 12c Absorbing paper Sa Absorbing area Sb Joint S1 Coloring Part S2 Uncolored part

Claims (4)

[Claims] 1. A pet excretion sheet including a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber interposed between the top sheet and the back sheet, wherein the absorber is present. A pet excretion sheet, characterized in that a central portion of the liquid absorbing region to be colored is colored, and the liquid absorbing region is non-colored in adjacent portions so as to surround the entire periphery of the colored portion. 2. The pet excretion sheet according to claim 1, wherein an uncolored second absorbent body is superposed on an outer peripheral portion of the colored first absorbent body in the liquid absorbing region. 3. The pressure-molding of the topsheet and the first absorbent body at least in a central portion of the liquid absorbing area, and at a boundary between the first absorbent body and the second absorbent body, The pet excretion sheet according to claim 2, wherein a step is formed on the top sheet. 4. The absorber comprises an absorbent core and an absorbent paper covering the surface thereof. At the colored portion, at least one of the absorbent core and the absorbent paper is colored, and the color is visually observed through a topsheet. The pet excretion sheet according to any one of claims 1 to 3, wherein the pet excretion sheet is enabled.