JP3797983B2 - Pet excretion sheet - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pet excretion sheet used on a floor or the like for the treatment of excrement of pets kept indoors.
[0002]
[Prior art]
Pet excretion sheets are used to treat the excrement of pets kept in the home. FIG. 6A is a perspective view of a conventional pet excretion sheet, and FIG. 6B is a cross-sectional view thereof.
[0003]
This pet excretion sheet S is composed of a top sheet 1 such as a liquid-permeable nonwoven fabric, a liquid-impervious back sheet 2, and an absorbent body 3 interposed between the top sheet 1 and the back sheet 2. Yes. The absorbent body 3 includes an absorbent core 3a and absorbent papers 3b and 3c such as tissue paper covering the surface so as to sandwich the upper and lower sides of the absorbent core 3a. The absorbent core 3a is composed of, for example, pulverized pulp 4 and a superabsorbent polymer 5.
[0004]
A portion where the absorber 3 is provided is a liquid absorption region Sa that can absorb excrement such as urine. The periphery is a joined portion Sb in which the topsheet 1 and the backsheet 2 are joined together via a hot melt adhesive, or bonded by thermal welding or the like.
[0005]
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. 6A, the entire liquid absorption region Sa is seen through the top sheet 1 to appear blue.
[0006]
[Patent Document 1]
Japanese Utility Model Publication No. 63-158160 [0007]
[Problems to be solved by the invention]
For example, pets such as dogs excrete on a sheet colored in blue or the like during childhood, and thereafter excrete on a sheet colored in blue or the like.
[0008]
As shown in FIGS. 6A and 6B, when the entire liquid absorption region Sa is colored blue or the like, the pet rides on the colored liquid absorption region Sa and excretes. However, at this time, the pet's bottom part becomes the end part of the liquid absorption area Sa, and excretion is easily performed at the end part of the liquid absorption area Sa. For this reason, urine or the like leaks from the liquid absorption area Sa and easily contaminates the floor surface.
[0009]
In addition, as shown in FIG. 6B, in the conventional pet excretion sheet S, the absorbent body 3 is flat. In such a structure, it is difficult to recognize whether the pet is on the liquid absorption area Sa of the pet sheet with the feel of the foot.
[0010]
SUMMARY OF THE INVENTION An object of the present invention is to provide a pet excretion sheet that recognizes a colored region of a pet and allows it to be excreted by recognizing a foot feeling.
[0011]
[Means for Solving the Problems]
The present invention relates to a pet excretion sheet having a liquid-permeable top sheet, a liquid-impervious back sheet, and an absorbent body interposed between the top sheet and the back sheet, the center having the absorbent body A non-colored portion having a liquid absorbing function is formed in a portion having a predetermined width adjacent to the colored portion, the portion being a colored portion, and surrounding the entire circumference of the colored portion. And the said unevenness | corrugation is press-molded in the said absorber, It is characterized by the above-mentioned.
[0012]
Further, the absorbent body is composed of an absorbent core and an absorbent paper covering the surface thereof, and at the colored portion, at least one of the absorbent core or the absorbent paper is colored, and the color can be seen through the surface sheet. It is what has been.
[0013]
The term “non-colored” 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, pulp fibers used for pet excretion sheets become white when the purity of cellulose constituting the pulp fibers is increased by purification and bleaching.
[0014]
Moreover, the coloring in this invention means that it is not uncolored. That is, it is a color other than white and is made by adding a pigment or a 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.
[0015]
A pet such as a dog has a habit of always excreting on a sheet colored in blue or the like when it is excreted on a sheet colored blue or the like in childhood.
[0016]
In the present invention, a central portion where the absorber is interposed is a colored portion, and a non-colored portion having a predetermined width having a liquid absorbing function is provided in a portion surrounding the outer periphery. Therefore, even if urine etc. is excreted at the end of the colored part, the urine leaks out of the pet excretion sheet as a result of recognizing the colored part and excreting it. It can prevent getting out. Since the non-colored portion exists outside the colored portion, urine discharged at the end of the colored portion or the non-colored portion is absorbed in the non-colored portion.
[0017]
In addition, the surface sheet and the first absorbent body are pressurized in the colored portion to form the unevenness, so that the pet can easily recognize the colored portion with the feel of the foot.
[0018]
Specific methods for forming a colored portion in the liquid absorption region include liquid absorbent fibers such as pulp forming the absorbent core, a super absorbent polymer contained in the absorbent core, or the surface of the absorbent core. There is a method of coloring an absorbent paper such as tissue paper provided. Or you may color in adhesives, such as a hot melt which adhere | attaches an absorber and a surface sheet. In addition, the top sheet can be colored.
[0019]
The pet excretion sheet of the present invention can also be formed by providing a non-colored absorbent on the entire surface of the pet excretion sheet and sandwiching a colored tissue between the absorbent and the surface sheet. .
[0020]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described below with reference to the drawings.
[0021]
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, and FIGS. 2 (A), (B) and FIG. FIG.
[0022]
As shown in FIGS. 1 (A) and 1 (B), the pet excretion sheet S of the present invention is entirely a liquid absorption region Sa except for the joint portion Sb around the pet excretion sheet. Further, when the pet excretion sheet S is viewed from the surface, the central portion of the liquid absorption region Sa is the colored portion S1, and the portion surrounding the entire circumference is the non-colored portion S2 having a liquid absorption function. The entire pet excretion sheet S is square or rectangular, and the colored portion S1 is square or rectangular as shown in FIG. 1 (A), or elliptical (oval) or circular as shown in FIG. 1 (B). is there.
[0023]
As shown in FIG. 2A, in the liquid absorption region Sa, a second absorbent body 12 is provided so as to surround the outer periphery of the first absorbent body 11. In the pet excretion sheet S, the liquid absorption region Sa is configured on substantially the same surface, and a liquid-permeable surface sheet 1 is laminated on the surface and a liquid-impermeable back sheet 2 is laminated on the back surface. In the outer peripheral portion of the liquid absorption 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 thermal welding to form a joint Sb.
[0024]
In the case shown in FIG. 2B, the first absorbent body 11 is provided on the substantially entire surface of the liquid absorption region Sa between the top sheet 1 and the back sheet 2. A second absorber 12 is overlaid on the outer periphery of the first absorber 11. Also in this case, the surface sheet 1 and the back surface sheet 2 are bonded to each other at the outer periphery of the portion where the second absorber 12 is provided to form a bonded portion Sb.
[0025]
The surface sheet 1 is a point bond nonwoven fabric, for example. A point bond nonwoven fabric is formed from synthetic fibers, such as a polyethylene fiber, a polypropylene fiber, or these composite fibers. 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 forming a colored part with an absorber, a surface sheet is a thin sheet | seat or a sheet | seat of a shape which can see through the colored part of an absorber through.
[0026]
The liquid-impermeable back sheet 2 is a polyethylene (PE) film or a vinyl sheet.
[0027]
As shown in an enlarged view in FIG. 4, the first absorbent body 11 includes an absorbent core in which a high-absorbent polymer 11 b is contained in absorbent fibers 11 a such as pulverized pulp, and an absorbent such as tissue paper covering the absorbent core. It is composed of paper 11c. Similarly, in the second absorbent body 12, an absorbent core in which the absorbent fiber 12a includes the superabsorbent polymer 12b is covered with the absorbent paper 12c.
[0028]
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, in FIG. 2A, the color of the first absorber 11 can be seen through the top sheet 1, and the portion where the first absorber 11 is provided is the colored portion S1. Moreover, since the 2nd absorber 12 provided so that the circumference | surroundings may be enclosed is not colored, it is white non-colored part S2 when it sees from the front of the surface sheet 1. FIG.
[0029]
In FIG. 2 (B), the 2nd absorber 12 is piled up on the colored 1st absorber 11 so that an outer peripheral part may be enclosed. A portion where only the first absorber 11 at the center is provided is a colored portion S1 that looks blue or the like through the top sheet 1, and an outer peripheral portion on which the second absorber 12 is superimposed is white. It is the uncolored part S2 that can be seen.
[0030]
In order for the first absorbent body 11 to be colored through the top sheet 1, 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 of coloring the absorbent fiber 11a, a pigment such as phthalocyanine blue can be sprayed onto the absorbent fiber. Alternatively, as shown in FIG. 5, a colored portion S <b> 1 may be formed by interposing a hot-melt adhesive h <b> 1 colored in blue or the like between the first absorbent body 11 and the top sheet 1. .
[0031]
The configuration as described above is as shown in FIGS. That is, the colored portion S1 is formed in the central portion of the liquid absorption region Sa, and the non-colored portion S2 is formed so as to surround the periphery thereof.
[0032]
Further, in the case shown in FIG. 2 (B), a step (i) is formed at the boundary between the first absorbent body 11 and the second absorbent body 12, and thus excreted urine and the like are formed in this portion. It can prevent flowing outside the sheet S. Therefore, as shown in FIG. 3, when the topsheet 1 and the first absorber 11 are pressure-molded with a roller or the like in the colored portion S <b> 1, the boundary between the first absorber 11 and the second absorber 12. The step (i) can be more clearly formed in the part. In addition, the emboss may be pressure-formed using a roller so that fine irregularities (ii) are continuously applied to the surfaces of the first absorbent body 11 and the top sheet 1 by this pressure forming.
[0033]
Since the step (i) is clear by the pressure molding, the urine excreted at the end of the colored portion S1 can be blocked by the step (i). Further, if the first absorber 11 and the top sheet 1 are uneven (ii) and the step (i) is clearly formed by pressurization, when the pet rides on the sheet S, It becomes possible to recognize whether it is the colored part S1 or the non-colored part S2 by touch, and it is easy to excrete within the range of the colored part S1.
[0034]
A method of using the pet excretion sheet S will be described.
When the pet is a child, the entire surface of the liquid absorption area Sa as shown in FIG. 6 (A) is laid on the floor or pet toilet and is excreted on the pet toilet. Let the pet remember where to excrete. The pet excretion sheet of the present invention as shown in FIG. 1 (A) or (B) having a size adapted to the growth of the pet after the pet has a habit of excretion on a sheet colored blue or the like. Use S.
[0035]
The disciplined pet recognizes that the area colored in blue or the like is excreted. At this time, even if the excretion location is the end of the colored portion S1, the non-colored portion S2 having an absorption function is present on the outer peripheral portion thereof, so urine or the like is surely received by the absorber of the non-colored portion S2. Absorbed. Therefore, urine etc. do not leak out of the pet excretion sheet S.
[0036]
In particular, as shown in FIGS. 2B and 3, when the uncolored portion S2 is higher in volume than the colored portion S1 and a step (i) is formed at the boundary portion, the surrounding uncolored portion is uncolored. The liquid absorption capacity in the part S2 is increased. That is, since urine excreted at the end of the colored portion S1 is easily absorbed by the non-colored portion S2, it is difficult for urine to flow out of the sheet.
[0037]
In the present invention, the area of the colored region of the sheet can be changed in several steps as the pet grows.
[0038]
In addition, since pets have different body sizes depending on the types and individual differences, it is preferable to use a pet excretion sheet suitable for each body size.
[0039]
【The invention's effect】
In the pet excretion sheet of the present invention described in detail above, even if the pet excretes at the end of the colored portion or the uncolored portion, the excreted urine and the like are absorbed even in the uncolored portion. Therefore, urine or the like is difficult 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 with the feel of the foot.
[Brief description of the drawings]
FIGS. 1A and 1B are perspective views of a pet excretion sheet according to the present invention as viewed from the top,
FIGS. 2A and 2B are cross-sectional views of the pet excretion sheet of the present invention,
FIG. 3 is an enlarged sectional view of an end portion of a pet excretion sheet;
FIG. 4 is an enlarged cross-sectional view showing the configuration of the absorbent body of the pet excretion sheet of the present invention,
FIG. 5 is an enlarged sectional view showing the configuration of the absorbent body of the pet excretion sheet of the present invention,
6A is a perspective view of a conventional pet excretion sheet, FIG. 6B is a sectional view thereof,
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Top sheet 2 Back sheet 11 1st absorber 11a Absorbent fiber 11b Super absorbent polymer 11c Absorbent paper 12 2nd absorber 12a Absorbent fiber 12b Super absorbent polymer 12c Absorbent paper Sa Absorbing area Sb Joining part S1 Coloring Part S2 Uncolored part

Claims (2)

In a pet excretion sheet having a liquid-permeable top sheet, a liquid-impervious back sheet, and an absorbent body interposed between the top sheet and the back sheet, a central portion having the absorbent body is colored. A non-colored portion having a liquid absorbing function is formed in a portion having a predetermined width adjacent to the entire circumference of the colored portion so as to surround the entire circumference of the colored portion, and in the colored portion, the topsheet and the absorber A pet excretion sheet, characterized in that the concaves and convexes are pressure molded. The absorbent body is composed of an absorbent core and an absorbent paper covering the surface thereof, and at the colored portion, at least one of the absorbent core or the absorbent paper is colored, and the color is made visible through the surface sheet. The pet excretion sheet according to claim 1.

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