JP2003310073A - Sheet for pet animal excretion - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet for pet animal excretion that can solve the problem that in many cases, a pet does not excrete at the center of the sheet and the excreta, particularly urine tends to leak out from the sheet at its edge parts. <P>SOLUTION: In an excretion sheet for a pet, the center part of the liquid absorption area Sa in which the excretion absorber for the excretion sheet S is placed is colored in blue or the like to be a colored part S1 and the periphery area of the center area is made into an uncolored part S2. A house-trained pet excretes on the colored part S1, but in the case the excretion is done on the edge of the colored part, the urine is absorbed in the uncolored part S2 whereby it does not leak out from the sheet. In addition, the surface of the colored part S1 is roughened and the pet can readily recognize the colored part S1 with its sole touch. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pet excrement sheet which is laid on a floor and used for treating excrement of pets kept indoors.

[0002]

2. Description of the Related Art A pet excrement sheet is used for treating 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 includes a top sheet 1 such as a liquid permeable nonwoven fabric and a liquid impermeable back sheet 2
And an absorber 3 interposed between the topsheet 1 and the backsheet 2. The absorber 3 is the absorbent core 3a.
And absorbent paper 3b, 3c such as tissue paper covering the surface of the absorbent core 3a so as to sandwich the absorbent core 3a from above and below. The absorbent core 3a is, for example, crushed pulp 4
And a super absorbent polymer 5.

The portion provided with the absorber 3 is a liquid absorption region Sa capable of absorbing excrements such as urine. The periphery thereof is a joint portion Sb in which the topsheet 1 and the backsheet 2 are joined via a hot melt adhesive or are joined by heat welding or the like.

In the conventional pet excretion sheet S, for example, the absorbent paper 3b is colored blue. Therefore, in the pet excretion sheet S shown in FIG. 6 (A), the entire liquid absorption area Sa is visible through the top sheet 1 to be blue.

[0006]

[Patent Document 1] Japanese Utility Model Laid-Open No. 63-158160

[0007]

For example, if a pet such as a dog is trained to excrete on a sheet colored in blue or the like during childhood, it will be excreted on a sheet colored in blue or the like thereafter. become.

As shown in FIGS. 6 (A) and 6 (B), when the entire liquid absorbing area Sa is colored blue or the like, the pet comes to be excreted on the colored liquid absorbing area Sa. . However, at this time, the pet's buttocks part is the liquid absorption area S.
It becomes the end portion of a and the excretion is easily performed at the end portion of the liquid absorption area Sa. Therefore, urine or the like is likely to leak from the liquid absorption area Sa and stain the floor or the like.

Further, as shown in FIG. 6B, in the conventional pet excretion sheet S, the absorber 3 is flat. In such a structure, it is difficult to recognize whether or not the pet is on the liquid absorbing area Sa of the pet sheet by the feel of the foot.

The present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a pet excretion sheet which allows a pet to recognize a colored region and to be excreted by recognizing the feel of a foot. I am trying.

[0011]

The present invention provides a pet excrement having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body interposed between the top sheet and the back sheet. In the sheet, a central portion having the absorber is a colored portion, and a non-colored portion having a liquid absorbing function is formed in a portion having a predetermined width adjacent to each other so as to surround the entire circumference of the colored portion. In the colored portion, unevenness is pressure-molded on the surface sheet and the absorber.

Further, the absorbent body is composed of an absorbent core and an absorbent paper covering the surface of the absorbent core. In the colored portion, at least one of the absorbent core and the absorbent paper is colored, and a color is obtained through the surface sheet. It is visible.

The term "non-colored" in the present invention means the original color of the material constituting the pet excrement sheet, that is, white or a color close to it. For example, the pulp fiber used for the pet excrement sheet becomes white due to the fact that the purity of the cellulose that constitutes the pulp fiber is increased by refining and bleaching.

The coloring in the present invention means not being non-colored. 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 type of color of the colored portion in the present invention can be blue, pink or any color.

Pets such as dogs have a habit of always excreting on a sheet colored in blue or the like when they are excreted on a sheet colored in blue or the like in their infancy. .

In the present invention, the central portion where the absorber is interposed is the colored portion, and the non-colored portion having a predetermined width and having the liquid absorbing function is provided in the portion surrounding the outer periphery thereof. Therefore, as a result of the disciplined pet recognizing the colored portion and excreting it, even if urine or the like is excreted at the end of the colored portion, urine or the like leaks out of the pet excretion sheet. You can prevent it from coming out. Since the uncolored portion exists outside the colored portion, urine discharged at the end of the colored portion or the uncolored portion is absorbed in the uncolored portion.

Further, since the top sheet and the first absorbent body are pressed by the colored portion to form the unevenness, the pet can easily recognize the colored portion by the feel of the foot.

As a specific method for forming the colored portion in the liquid absorbing region, there are liquid absorbing fibers such as pulp forming the absorbing core, a super absorbent polymer contained in the absorbing core, or the absorbing core. There is a method of coloring absorbent paper such as tissue paper provided on the surface of the. Alternatively, an adhesive such as hot melt that bonds the absorber to the surface sheet may be colored. In addition, the surface sheet can be colored.

The pet excretion sheet of the present invention may also be formed by providing a non-colored absorbent body on the entire surface of the pet excretion sheet and sandwiching a colored tissue between the absorbent body and the surface sheet. It is possible.

[0020]

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 seen from above the top sheet 1, FIG.
3A and 3B and FIG. 3 are cross-sectional views of the pet excretion sheet S according to the configuration.

The pet excretion sheet S of the present invention is shown in FIG.
As shown in (A) and (B), the entire portion other than the joint portion Sb around the pet excretion sheet is the liquid absorption area Sa. Further, 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 circumference thereof is the uncolored portion S2 having the liquid absorbing function. The entire pet excretion sheet S has a square or rectangular shape, and the colored portion S1 has a square or rectangular shape as shown in FIG.
Alternatively, the shape is an ellipse (oval) or a circle as shown in FIG.

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

In the structure shown in FIG. 2B, the first absorber 11 is provided between the topsheet 1 and the backsheet 2 over almost the entire liquid absorption area Sa. This first
The second absorbent body 12 is superposed on the outer peripheral portion of the absorbent body 11. Also in this case, the top sheet 1 and the back sheet 2 are joined to form a joint Sb on the outer periphery of the portion where the second absorber 12 is provided.

The topsheet 1 is, for example, a point bond nonwoven fabric. The point bond nonwoven fabric is formed from synthetic fibers such as polyethylene fibers, polypropylene fibers or composite fibers thereof. Alternatively, it is formed from a water-absorbent 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 shaped sheet through which the colored portion of the absorber can be seen.

The liquid-impermeable backsheet 2 is a polyethylene (PE) film, a vinyl sheet or the like.

As shown in the enlarged view of FIG. 4, the first absorbent body 11 includes an absorbent core in which absorbent fiber 11a such as crushed pulp contains superabsorbent polymer 11b, and a tissue paper covering the absorbent core. It is composed of absorbent paper 11c. Similarly, in the second absorbent body 12, the absorbent core in which the super absorbent polymer 12b is contained in the absorbent fiber 12a is the absorbent paper 12
It is covered with c.

In this example, the first absorber 11 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, FIG. 2 (A)
Then, 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,
The white uncolored portion S2 when viewed from the front of the topsheet 1
Is.

In FIG. 2B, the second absorbent body 12 is laid over the colored first absorbent body 11 so as to surround the outer peripheral portion. The portion of the central portion where only the first absorber 11 is provided is the colored portion S1 that looks blue or the like through the topsheet 1, and the outer peripheral portion where the second absorber 12 is overlapped is white. It is the visible uncolored portion S2.

In order to make the first absorbent body 11 look colored through the topsheet 1, colored paper may be used as the absorbent paper 11c for covering the absorbent core. Alternatively, the absorbent fiber 11a such as pulp and / or the superabsorbent polymer 11b forming the absorbent core may be colored. As a method of coloring the absorbent fiber 11a, a pigment such as phthalocyanine blue can be sprayed on the absorbent fiber. Alternatively, as shown in FIG. 5, the hot-melt adhesive h1 colored in blue or the like is interposed between the first absorber 11 and the topsheet 1 to form the colored portion S1.
May be formed.

With the above configuration, FIG. 1 (A)
As shown in (B). That is, the colored portion S1 is formed in the central portion of the liquid absorption area Sa, and the uncolored portion S2 is formed so as to surround the periphery thereof.

Further, in the structure shown in FIG. 2 (B), since the step (i) is formed at the boundary between the first absorbent body 11 and the second absorbent body 12, it is excreted at this portion. It is possible to prevent urine and the like from flowing to the outside of the sheet S. Therefore, FIG.
As shown in FIG. 1, when the top sheet 1 and the first absorbent body 11 are pressure-molded by rollers or the like in the colored portion S1, the first sheet
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 pressure-molded by using a roller so that the surface of the first absorbent body 11 and the surface sheet 1 are continuously provided with fine irregularities (ii) by this pressure-molding.

Since the step (i) is defined by the pressure molding, the urine excreted at the end of the colored portion S1 can be blocked by the step (i). Further, when the unevenness (ii) is formed on the first absorbent body 11 and the surface sheet 1 and the step (i) is clearly formed by the pressure, when the pet rides on the sheet S, It is possible to recognize by touch whether it is the colored portion S1 or the non-colored portion S2, and it becomes easier 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 its infancy, a pet excretion sheet with the entire surface of the liquid absorption area Sa colored blue or the like as shown in FIG. 6 (A) is laid on the floor or the pet toilet,
By excreting on it, the pet remembers the place to excrete. After the pet has a habit of excreting on a sheet colored blue or the like, a pet excretion sheet of the present invention having a size according to the growth of the pet as shown in FIG. 1 (A) or (B). Use S.

The disciplined pet is recognized as a place to excrete a region colored in blue or the like. At this time, even if the excretion part is at the end of the colored part S1, since the uncolored part S2 having an absorbing function exists in the outer peripheral part thereof, urine or the like is surely absorbed by the absorber of the uncolored part S2. Absorbed into. Therefore, urine or the like does not leak out of the pet excretion sheet S.

In particular, as shown in FIGS. 2 (B) and 3, if the non-colored portion S2 is bulkier than the colored portion S1 and the step (i) is formed at the boundary, the periphery of The liquid absorption capacity of the non-colored portion S2 is increased. That is, the colored portion S
Since the urine excreted at the end of No. 1 is easily absorbed by the non-colored portion S2, urine and the like are less likely to flow out of the sheet.

Further, according to the present invention, it is possible to change the area of the colored region of the sheet in several stages according to the growth of the pet.

Since pets have different body sizes depending on the type and individual difference, it is preferable to use a pet excretion sheet suitable for each body size.

[0039]

EFFECTS OF THE INVENTION The pet excretion sheet of the present invention described in detail above allows the excreted urine to be absorbed in the uncolored portion even if the pet excretes at the end of the colored portion or the uncolored portion. become. Therefore, urine and the like are less likely to leak to the outside of the sheet. In addition, since the surface of the colored portion is uneven, the pet can easily recognize the colored portion by the feel of the foot.

[Brief description of drawings]

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

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

FIG. 3 is an enlarged cross-sectional view of an end portion of a pet excretion sheet,

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

FIG. 5 is an enlarged cross-sectional view showing the structure of the absorbent body of the 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]

1 surface sheet 2 Back sheet 11 First absorber 11a absorbent fiber 11b Super absorbent polymer 11c absorbent paper 12 Second absorber 12a absorbent fiber 12b Super absorbent polymer 12c absorbent paper Sa absorption region Sb joint S1 coloring part S2 Uncolored part

Claims (2)

[Claims] 1. A pet excretion sheet having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber interposed between the top sheet and the back sheet, wherein the pet excretion sheet has the absorber. The central portion is a colored portion, and a portion having a predetermined width adjacent to each other so as to surround the entire circumference of the colored portion, a non-colored portion having a liquid absorbing function is formed,
The pet excretion sheet, wherein unevenness is pressure-molded on the surface sheet and the absorber in the colored portion. 2. The absorbent body is composed of an absorbent core and an absorbent paper covering the surface thereof, and at least one of the absorbent core and the absorbent paper is colored in the colored portion, and a color is obtained through a surface sheet. The pet excretion sheet according to claim 1, which is visible.