Water-permeable mat, system toilet for pet, and package

Abstract

To provide an excretion environment that is comfortable for pets.SOLUTION: A water-permeable mat according to one aspect of the present invention is for pets and is for use by being disposed on an absorbent sheet. This water-permeable mat has a porous structure, and, in a dry state, a compression work amount (WC value) of the water-permeable mat as measured by a KES compression test is 13-60 gf cm / cm2.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a water-permeable mat, a pet litter box system, and a packaging body. [Background technology]

[0002] A pet toilet system that processes excrement from pets such as dogs and cats is known. For example, Patent Document 1 describes a pet toilet system that includes a tray, an absorbent sheet disposed on the tray, and a cardboard panel having a corrugated honeycomb structure disposed on the absorbent mat. In this pet toilet system, when a pet sits on the panel to urinate, the urine passes through the panel and is absorbed by the absorbent sheet. By disposing the panel on the absorbent sheet, the pet does not come into direct contact with the absorbent sheet, and as a result, the urine absorbed by the absorbent sheet is prevented from flowing back up into the pet's legs. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2012-205541 A Summary of the Invention [Problem to be solved by the invention]

[0004] Many pet owners want their pets to excrete in a toilet installed indoors in order to keep the room clean, but it is not easy to get pets used to excreting in a toilet. Generally, pets prefer to excrete in a clean and comfortable environment, and if a toilet that does not suit the pet's preferences is provided, the pet will often dislike using the toilet. For example, the panel described in Patent Document 1 is made of cardboard and has a hard and uneven surface, which may not suit the preferences of some pets and may cause them to avoid using the toilet. It is difficult to promote the use of pet toilet systems unless a comfortable excretion environment is provided for pets.

[0005] Therefore, an object of the present disclosure is to provide a water-permeable mat that can provide a comfortable excretion environment for pets, a pet system toilet that includes the water-permeable mat, and a packaging body that contains the water-permeable mat. [Means for solving the problem]

[0006] The water-permeable mat for pets in one embodiment is placed on an absorbent sheet for use. This water-permeable mat has a porous structure, and in a dry state, the compression work (WC value) according to the KES compression test is 13 gf cm / cm 2 More than 60 gf cm / cm 2 The following is the result.

[0007] The compression work in the KES compression test is the work required to reach the maximum pressure when the permeable mat is compressed in the thickness direction. The higher this value, the softer the permeable mat is and the easier it is to compress. In a dry state, the compression work required for the permeable mat is 13 gf cm / cm 2 By setting the water-permeable mat at 60gf·cm / cm or more, it is possible to provide the cushioning that pets prefer. On the other hand, if the water-permeable mat is too soft, the water-permeable mat will be compressed excessively when a pet sits on it, causing the pet's legs to come into contact with the absorbent sheet, and there is a risk that urine absorbed by the absorbent sheet will flow back into the pet's legs. In contrast, if the compression work of the water-permeable mat is set at 60gf·cm / cm or more, it is possible to provide the cushioning that pets prefer. 2 Contamination of the pet's legs can be prevented by doing the following: Therefore, this water-permeable mat can provide a clean and comfortable excretion environment for pets.

[0008] The permeable mat has a compression work capacity (WC value) of 13 gf cm / cm in a wet state according to the KES compression test. 2 More than 60 gf cm / cm 2 In this case, even in a wet state, a clean and comfortable excretion environment can be provided for the pet.

[0009] The water-permeable mat may be made of a urethane resin. By making the water-permeable mat of a urethane resin, it is possible to impart cushioning that pets prefer, and it is possible to provide a comfortable excretion environment for pets.

[0010] The water-permeable mat may have a lightness L* of 55 or less in the L*a*b* color system when viewed in the thickness direction. Pets such as dogs tend to avoid urine marks on the absorbent sheet when urinating, and may dislike urinating on the absorbent sheet after it has been used, even if the absorbent sheet can absorb the urine. By making the water-permeable mat a dark color, the visibility of urine marks on the absorbent sheet is reduced, allowing the absorbent sheet to be used repeatedly.

[0011] The water-permeable mat may have a thickness of 2 mm or more and less than 7 mm in a natural state. By making the thickness of the water-permeable mat 2 mm or more, when a pet sits on the mat, the water-permeable mat is compressed, and the pet's legs come into contact with the absorbent sheet, preventing urine from flowing back to the pet's legs. By making the thickness of the water-permeable mat less than 7 mm, the water-permeable mat can be given water permeability.

[0012] The permeable mat has a thickness of 990g / cm 2 The thickness when the load is applied may be 0.5 mm or more. In this case, it is possible to prevent urine from flowing back to the pet's legs due to contact with the absorbent sheet.

[0013] When viewed in the thickness direction of the water-permeable mat, the number of pores per square inch may be from 8 to 20. By making the number of pores per square inch of the water-permeable mat from 8 to 20, urine excreted on the water-permeable mat can pass through and be absorbed by the absorbent sheet.

[0014] The permeable mat has a tensile strength of 8N / mm when wet. 2The above may be the case. In this case, even if the pet repeatedly urinates on the water-permeable mat, the water-permeable mat is less likely to be damaged, so it is possible to use the water-permeable mat without replacing it for a long time.

[0015] The water-permeable mat may have a tensile strength in the dry state that is 90% or more and 110% or less of the tensile strength in the wet state. In this case, when the pet urinates on the water-permeable mat and the mat gets wet, the water-permeable mat is less likely to be damaged, so it is possible to repeatedly use the water-permeable mat over a long period of time.

[0016] A hydrophilic agent may be applied to the water-permeable mat. By applying a hydrophilic agent to the water-permeable mat, the residue of urine on the surface of the water-permeable mat is suppressed. As a result, the water-permeable mat can be kept clean.

[0017] The water-permeable mat may contain an antibacterial agent containing silver ions. In this case, since the odor of urine is suppressed by the antibacterial agent containing silver ions, the water-permeable mat can be kept clean.

[0018] The water-permeable mat may have an apparent density of 25 kg / m 3 or more and 35 kg / m 3 or less. By setting the apparent density of the water-permeable mat within the above range, appropriate water permeability can be imparted to the water-permeable mat.

[0019] The water-permeable mat may have an air permeability of 0.001 or more and 0.006 or less. By setting the air permeability of the water-permeable mat within the above range, appropriate water permeability can be imparted to the water-permeable mat.

[0020] One embodiment of the system toilet for pets comprises an absorbent sheet having water absorption properties, a water-permeable mat placed on the absorbent sheet, and a toilet body that holds the absorbent sheet and the water-permeable mat, the water-permeable mat having a porous structure and, in a dry state, a compression work load (WC value) according to a KES compression test of 13 gf·cm / cm2 or more and 60 gf·cm / cm2 or less.

[0021] In a dry state, the compression work (WC value) of the permeable mat is 13 gf cm / cm 2 More than 60 gf cm / cm 2 By doing the following, it is possible to provide a clean and comfortable excretion environment for pets, thereby promoting the use of the pet toilet system.

[0022] The package according to one embodiment contains a water-permeable mat for pets that is placed on an absorbent sheet for use. The water-permeable mat has a porous structure, and in a dry state, the compression work (WC value) according to the KES compression test is 13 gf cm / cm. 2 More than 60 gf cm / cm 2 The inner surface of the packaging body is made of a resin film.

[0023] By forming the inner surface of the packaging body from a resin film, the frictional force between the inner surface of the packaging body and the water-permeable mat is reduced, making it possible to easily remove the water-permeable mat from the packaging body. Effect of the Invention

[0024] According to various aspects of the present invention, a comfortable excretion environment for pets can be provided. [Brief description of the drawings]

[0025] [Figure 1] FIG. 1 is a perspective view showing a system toilet for pets according to one embodiment. [Diagram 2] FIG. 2 is an exploded perspective view showing main components of the pet toilet system shown in FIG. 1. [Diagram 3]It is a cross-sectional view of a pet system toilet along the A-A line in FIG. 1. [Figure 4] It is a cross-sectional view showing an enlarged part of FIG. 3. [Diagram 5] It is a perspective view of the bottom plate part. [Figure 6] It is a perspective view of the middle frame part. [Figure 7] It is a bottom view of the middle frame part. [Figure 8] It is a perspective view of the upper frame part. [Figure 9] It is a bottom view of the upper frame part. [Figure 10] It is a side view of the toilet body. [Figure 11] It is a schematic plan view of the absorbent sheet. [Figure 12] It is a cross-sectional view along the B-B line in FIG. 11. [Figure 13] It is a plan view showing an enlarged part of a portion of the water-permeable mat. [Figure 14] It is a schematic cross-sectional view showing a package containing a plurality of water-permeable mats.

Embodiments for Carrying Out the Invention

[0026] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In the description of the drawings, the same reference numerals are assigned to the same elements, and redundant descriptions are omitted. The drawings may be drawn with some parts simplified or exaggerated for ease of understanding, and the dimensional ratios are not limited to those shown in the drawings.

[0027] Hereinafter, a pet system toilet (hereinafter referred to as "system toilet") including a water-permeable mat for pets according to an embodiment will be described. FIG. 1 is a perspective view showing a system toilet 1 according to an embodiment. FIG. 2 is a perspective view showing the main components of the system toilet 1 disassembled. FIG. 3 is a cross-sectional view along the A-A line in FIG. 1. FIG. 4 is a cross-sectional view showing an enlarged fitting portion of the system toilet 1 shown in FIG. 3.

[0028] The system toilet 1 shown in Figs. 1 to 4 is an excretion device for pets. In this specification, pets broadly include vertebrates and invertebrates, and typically include pet animals such as dogs, cats, rabbits, and hamsters. Typically, the system toilet 1 is installed indoors for pets kept indoors and provides an excretion space. Pet excrement is typically urine, but also includes body fluids such as low-viscosity feces, saliva, and blood.

[0029] As shown in Figure 1, the system toilet 1 includes a toilet body 2, an absorbent sheet 3 having water-absorbent properties, and a water-permeable mat 4 placed on the absorbent sheet 3. The toilet body 2 holds the absorbent sheet 3 and the water-permeable mat 4.

[0030] In the following description, the stacking direction of the absorbent sheet 3 and the water-permeable mat 4 is referred to as the "vertical direction Z," and the two directions perpendicular to the vertical direction Z are referred to as the "width direction X" and the "depth direction Y," respectively. In the embodiment shown in Fig. 1, the width direction X is parallel to the longitudinal direction of the toilet body 2, and the depth direction Y is parallel to the lateral direction of the toilet body 2. In addition, the direction from the absorbent sheet 3 toward the water-permeable mat 4 is referred to as the "upward direction," and the direction from the water-permeable mat 4 toward the absorbent sheet 3 is referred to as the "downward direction."

[0031] The toilet body 2 is a device for holding the absorbent sheet 3 and the water-permeable mat 4. As shown in Fig. 2, the toilet body 2 includes a bottom plate portion 11, a middle frame portion 12 arranged on the bottom plate portion 11, and an upper frame portion 13 arranged on the middle frame portion 12. The bottom plate portion 11, the middle frame portion 12, and the upper frame portion 13 are formed by molding, for example, a thermoplastic resin, and are flexible. As will be described later, the bottom plate portion 11, the middle frame portion 12, and the upper frame portion 13 are detachable from each other in the vertical direction Z.

[0032] FIG. 5 is a perspective view of the bottom plate 11 of the toilet body 2. As shown in FIG. 5, the bottom plate 11 has a substantially rectangular bottom surface 21 with the width direction X as the longitudinal direction when viewed from the vertical direction Z, and an outer edge portion 22 surrounding the bottom surface 21. The bottom surface 21 has an upper surface 23 on which the absorbent sheet 3 is placed. The upper surface 23 of the bottom surface 21 has an uneven shape. Specifically, the upper surface 23 has a plurality of recesses 23a recessed downward and a protrusion 23b protruding upward. The plurality of recesses 23a are two-dimensionally arranged along the width direction X and the depth direction Y. Each of the plurality of recesses 23a is formed in a quadrangular shape (square shape) when viewed from the vertical direction Z. The protrusion 23b is formed in a lattice shape that divides the plurality of recesses 23a.

[0033] The outer edge portion 22 is formed in a substantially rectangular frame shape when viewed from the vertical direction Z, and is disposed so as to surround the bottom surface portion 21. Typically, the outer edge portion 22 is formed integrally with the bottom surface portion 21 by a thermoplastic resin. The outer edge portion 22 includes a side wall portion 24 rising upward from the outer edge of the bottom surface portion 21, an inner peripheral portion 25 extending outward from the upper end of the side wall portion 24, and an outer peripheral portion 26 extending outward from the outer edge of the inner peripheral portion 25. The side wall portion 24 has a function of blocking urine excreted on the bottom surface portion 21 through the water permeable mat 4 and the absorbent sheet 3. The side wall portion 24 may have a notch (not shown) formed therein for returning urine that has entered a fitting recess 27 (described later) to the bottom surface portion.

[0034] The inner peripheral portion 25 is provided on the outside of the side wall portion 24, and has an upper surface 25a disposed above the upper surface 23 of the bottom surface portion 21 (see FIG. 4). The inner peripheral portion 25 is formed with a fitting recess (first fitting recess) 27 recessed downward from the upper surface 25a of the inner peripheral portion 25. The fitting recess 27 is a groove having a substantially rectangular shape when viewed from the vertical direction Z, and is formed in the region between the side wall portion 24 and the outer peripheral portion 26. The bottom of the fitting recess 27 is disposed above the upper surface 23 of the bottom surface portion 21, and below the upper surface 25a of the inner peripheral portion 25.

[0035] The outer circumferential portion 26 is provided outside the inner circumferential portion 25, and has an upper surface 26a disposed above an upper surface 25a of the inner circumferential portion 25. At a pair of ends of the outer circumferential portion 26 in the depth direction Y, cutout portions 26b are formed by cutting out a part of the outer circumferential portion 26 toward the depth direction Y. A columnar connecting portion 28 is provided in the cutout portion 26b. The connecting portion 28 extends in the width direction X, and both ends are connected to the outer circumferential portion 26.

[0036] Fig. 6 is a perspective view of the middle frame portion 12, and Fig. 7 is a bottom view of the middle frame portion 12. The middle frame portion 12 has a substantially rectangular frame shape when viewed from the up-down direction Z, and is detachably attached to the outer edge portion 22 of the bottom plate portion 11. The middle frame portion 12 includes an inner peripheral portion 31 and an outer peripheral portion 32 disposed outside the inner peripheral portion 31. When the middle frame portion 12 is attached to the bottom plate portion 11, the inner peripheral portion 31 of the middle frame portion 12 is disposed above the inner peripheral portion 25 of the bottom plate portion 11, and the outer peripheral portion 32 of the middle frame portion 12 is disposed above the outer peripheral portion 26 of the bottom plate portion 11.

[0037] As shown in FIG. 4 and FIG. 6, the inner periphery 31 has a fitting protrusion (first fitting protrusion) 33 and a fitting recess (second fitting recess) 34. The fitting protrusion 33 is formed along the inner edge of the middle frame 12 and has a substantially rectangular shape when viewed from below. The fitting protrusion 33 protrudes downward (toward the bottom plate 11) from the lower surface of the middle frame 12. The fitting protrusion 33 is disposed at a position facing the fitting recess 27 of the bottom surface 21 and can be fitted into the fitting recess 27. When the fitting protrusion 33 is fitted into the fitting recess 27, the bottom plate 11 and the middle frame 12 are connected to each other, and displacement of the bottom plate 11 and the middle frame 12 in the horizontal direction (width direction X and depth direction Y) is suppressed. The fitting recess 27 and the fitting protrusion 33 constitute the lower fitting structure 10 that connects the bottom plate 11 and the middle frame 12.

[0038] The fitting recess 34 is recessed downward from the upper surface of the inner circumferential portion 31. The fitting recess 34 is a groove having a substantially rectangular shape, and is disposed outside the fitting protrusion 33 as viewed from the vertical direction Z. As viewed from the vertical direction Z, the depth of the fitting recess 34 (the distance from the upper surface of the inner circumferential portion 31 to the bottom of the fitting recess 34 in the vertical direction Z) may be deeper than the depth of the fitting recess 27 (the distance from the upper surface 25a of the inner circumferential portion 25 to the bottom of the fitting recess 27 in the vertical direction Z).

[0039] One or more openings 37 may be formed in the bottom of the fitting recess 34 (see FIG. 7). The multiple openings 37 are through holes that penetrate the middle frame portion 12 in the thickness direction (up-down direction Z), and allow urine that has entered the fitting recess 34 to be discharged to the bottom portion 21.

[0040] The outer peripheral portion 32 of the middle frame portion 12 has an outer peripheral protrusion 35. The outer peripheral protrusion 35 is formed along the outer edge of the middle frame portion 12. The outer peripheral protrusion 35 has a substantially rectangular shape when viewed from below, and protrudes downward (toward the bottom plate portion 11) from the outer edge of the middle frame portion 12. As shown in FIG. 4, the tip of the outer peripheral protrusion 35 is disposed above the tip of the fitting protrusion 33 and below the bottom of the fitting recess 34. When the fitting protrusion 33 of the middle frame portion 12 is fitted into the fitting recess 27 of the bottom plate portion 11, the outer peripheral protrusion 35 is supported on the outer peripheral portion 26 of the bottom plate portion 11.

[0041] The inner frame portion 12 has a pair of first inner frame sides 12A extending in the width direction X and a pair of second inner frame sides 12B extending in the depth direction Y. As shown in Fig. 6, the length of the pair of first inner frame sides 12A in the width direction X is longer than the length of the pair of second inner frame sides 12B in the depth direction Y. The width w2 of the pair of second inner frame sides 12B in the width direction X may be smaller than the width w1 of the pair of first inner frame sides 12A in the depth direction Y.

[0042] The pair of first inner frame sides 12A have latches (second locking structures) 38 for locking the inner frame portion 12 to the bottom plate portion 11. The latches 38 include a latch body 38a extending downward from the outer edges of the pair of first inner frame sides 12A, and an extension portion 38b that is disposed inside the latch body 38a in the depth direction Y and faces the latch body 38a across a gap 38s (see FIG. 7).

[0043] The latch body 38a has a first claw portion 38c and a second claw portion 38d. The first claw portion 38c protrudes inward in the depth direction Y from the inner surface of the latch body 38a. The second claw portion 38d protrudes outward in the depth direction Y from the outer surface of the latch body 38a. When the middle frame portion 12 is attached onto the bottom plate portion 11, the connection portion 28 of the bottom plate portion 11 is accommodated in the gap 38s, and the first claw portion 38c is engaged with the connection portion 28 due to elastic deformation of the latch body 38a. This fixes the middle frame portion 12 to the bottom plate portion 11.

[0044] Fig. 8 is a perspective view of the upper frame portion 13, and Fig. 9 is a bottom view of the upper frame portion 13. The upper frame portion 13 has a substantially rectangular frame shape when viewed from the up-down direction Z, and is detachably attached onto the middle frame portion 12. The upper frame portion 13 includes an inner peripheral portion 41 and an outer peripheral portion 42 disposed outside the inner peripheral portion 41. When the upper frame portion 13 is attached onto the middle frame portion 12, the inner peripheral portion 41 of the upper frame portion 13 is disposed above the inner peripheral portion 31 of the middle frame portion 12, and the outer peripheral portion 42 of the upper frame portion 13 is disposed above the outer peripheral portion 32 of the middle frame portion 12.

[0045] The inner peripheral portion 41 of the upper frame portion 13 has an inner peripheral convex portion 43 and a fitting convex portion (second fitting convex portion) 44 (see FIG. 4). The inner peripheral convex portion 43 is formed along the inner edge of the upper frame portion 13 and has a generally rectangular shape when viewed from below. The inner peripheral convex portion 43 protrudes downward from the inner edge of the upper frame portion 13 towards the bottom plate portion 11.

[0046] The fitting protrusion 44 has a substantially rectangular shape when viewed from below, and is disposed outside the inner peripheral protrusion 43. The fitting protrusion 44 is disposed at a position facing the fitting recess 34 of the middle frame portion 12, and protrudes downward from the lower surface of the upper frame portion 13 toward the fitting recess 34. The fitting protrusion 44 can be fitted into the fitting recess 34. When the fitting protrusion 44 is fitted into the fitting recess 34, the middle frame portion 12 and the upper frame portion 13 are connected, and misalignment between the middle frame portion 12 and the upper frame portion 13 in the horizontal direction (width direction X and depth direction Y) is suppressed. The fitting recess 34 and the fitting protrusion 44 constitute the upper fitting structure 20 that connects the middle frame portion 12 and the upper frame portion 13.

[0047] 4, when the fitting recess 34 and the fitting protrusion 44 are fitted together, the lower end of the inner peripheral protrusion 43 is disposed lower than the lower end of the fitting protrusion 44. In addition, the maximum length of the fitting protrusion 44 of the upper frame portion 13 may be longer than the maximum length of the fitting protrusion 33.

[0048] The outer periphery 42 of the upper frame portion 13 has an outer periphery protrusion 45. The outer periphery protrusion 45 is formed along the outer edge of the upper frame portion 13. The outer periphery protrusion 45 has a generally rectangular shape when viewed from below, and protrudes downward from the outer edge of the upper frame portion 13 toward the middle frame portion 12. As shown in FIG. 4, when the upper frame portion 13 is attached to the middle frame portion 12 and the fitting protrusion 44 is fitted into the fitting recess 34, the outer periphery protrusion 45 of the upper frame portion 13 is supported on the outer periphery protrusion 35 of the middle frame portion 12.

[0049] 8, the upper frame portion 13 has a pair of first upper frame sides 13A extending in the width direction X and a pair of second upper frame sides 13B extending in the depth direction Y. The length of the pair of first upper frame sides 13A in the width direction X is longer than the length of the pair of second upper frame sides 13B in the depth direction Y. A width w4 in the width direction X of the pair of second upper frame sides 13B may be smaller than a width w3 in the depth direction Y of the pair of first upper frame sides 13A.

[0050] A pair of first upper frame sides 13A has a latch (first locking structure) 46 for locking the upper frame part 13 to the middle frame part 12. The latch 46 extends downward from the outer edge of the first upper frame side 13A. The latch 46 has an opening 46a penetrating the latch 46 in the thickness direction (depth direction Y). When attaching the upper frame part 13 to the middle frame part 12, the latch 46 slides along the outer surface of the latch 38 while elastically deforming so as to spread outward in the depth direction Y, and the second claw part 38d of the latch 38 fits into the opening 46a of the latch 46. As a result, the upper frame part 13 is fixed to the middle frame part 12. FIG. 10 is a side view showing the toilet body 2 in which the latch 46 of the upper frame part 13 fits into the latch 38 of the middle frame part 12, and the bottom plate part 11, the middle frame part 12, and the upper frame part 13 are connected.

[0051] 8, upper frame portion 13 has upper surface 47 that slopes downward (closer to bottom plate portion 11) from the outer edge to the inner edge of upper frame portion 13. Upper surface 47 is a curved surface whose slope angle increases closer to the inner edge of upper frame portion 13. Because upper surface 47 is sloped as described above, when a pet's urine splashes on upper frame portion 13, the urine can fall along upper surface 47 onto bottom plate portion 21.

[0052] In one embodiment, the upper surface 47 of the upper frame portion 13 may have an uneven shape. For example, a plurality of raised portions (convex portions) 48 extending in the depth direction Y are arranged at equal intervals along the width direction X on a pair of first upper frame sides 13A of the upper frame portion 13. Similarly, a plurality of raised portions 48 are arranged at equal intervals along the depth direction Y on a pair of second upper frame sides 13B of the upper frame portion 13. Between the plurality of raised portions 48, an inclined surface (concave portion) 49 that allows urine to flow toward the absorbent sheet 3 is formed. That is, on the upper surface 47 of the pair of first upper frame sides 13A, the raised portions 48 and the inclined surfaces 49 are alternately arranged in the width direction X, and on the upper surface 47 of the pair of second upper frame sides 13B, the raised portions 48 and the inclined surfaces 49 are alternately arranged in the depth direction Y. The inclined surfaces 49 are curved so as to approach downward as they move away from the adjacent raised portions 48. That is, since the center of inclined surface 49 in the width direction X or depth direction Y is the lowest, urine on upper frame portion 13 is collected at the center of inclined surface 49 and guided to bottom portion 21.

[0053] The toilet body 2 holds an absorbent sheet 3 and a water-permeable mat 4. The absorbent sheet 3 is a thin, water-absorbent sheet that is placed on the bottom surface 21 of the bottom plate 11 and absorbs pet urine. The absorbent sheet 3 has a substantially rectangular planar shape and has dimensions that correspond to the dimensions of the toilet body 2. For example, the absorbent sheet 3 has a length of 400 mm to 600 mm in the longitudinal direction and a width of 300 mm to 500 mm in the lateral direction. The absorbent sheet 3 is placed and held between the bottom plate 11 and the middle frame 12 of the toilet body 2.

[0054] FIG. 11 is a schematic plan view of the absorbent sheet 3. FIG. 12 is a cross-sectional view taken along the line BB in FIG. 11. As shown in FIGS. 11 and 12, the absorbent sheet 3 includes a top sheet 51 arranged on the top side of the absorbent sheet 3, a back sheet 52 arranged on the back side of the absorbent sheet 3, and an absorbent 53 arranged between the top sheet 51 and the back sheet 52. The top sheet 51 is liquid permeable and is formed in a substantially rectangular shape. The top sheet 51 is made of a resin film having a large number of openings 51a penetrating the top sheet 51 in the thickness direction. Typically, polyethylene or polypropylene is used as the material for the resin film. The top sheet 51 may be made of a laminate in which a nonwoven fabric is bonded to a resin film, or a water-repellent nonwoven fabric. Pet urine excreted on the absorbent sheet 3 moves to the absorbent 53 side through the openings 51a formed in the top sheet 51.

[0055] The back sheet 52 is water impermeable and formed in a generally rectangular shape with substantially the same dimensions as the top sheet 51. Examples of materials for the back sheet 52 include a resin film such as polyethylene or polypropylene, a laminate in which a nonwoven fabric is bonded to the resin film, or a water-repellent nonwoven fabric. By disposing the liquid impermeable back sheet 52 on the back side of the absorbent sheet 3, urine excreted on the absorbent sheet 3 is prevented from leaking to the back side.

[0056] The absorber 53 is disposed between the top sheet 51 and the back sheet 52, and absorbs urine that has passed through the top sheet 51. The absorber 53 has a substantially rectangular planar shape, has dimensions slightly smaller than those of the top sheet 51 and the back sheet 52, and is disposed at the center of the absorbent sheet 3. Therefore, as shown in FIG. 11, the absorbent sheet 3 is formed with an absorption portion 3a in which the absorber 53 is disposed between the top sheet 51 and the back sheet 52, and a flap portion 3b in which the absorber 53 is not disposed between the top sheet 51 and the back sheet 52. The absorption portion 3a is a substantially rectangular region disposed at the center of the absorber 53 when viewed in the thickness direction, and is partially joined to the top sheet 51 by a hot melt adhesive HM. The flap portion 3b is a rectangular frame-shaped region in which the top sheet 51 and the back sheet 52 are bonded together without passing through the absorber, and is formed so as to surround the absorption portion 3a. That is, the flap portion 3b is formed along the outer edge of the absorbent sheet 3. Typically, as shown in FIG. 12, in the flap portion 3b, the top sheet 51 and the back sheet 52 are directly joined by a hot melt adhesive HM without passing through the absorber 53.

[0057] The absorber 53 includes an absorbent core 54 containing pulp and a superabsorbent polymer (SAP), and a core wrap 55 covering the surface of the absorbent core. As the pulp of the absorbent core 54, for example, cellulose fibers such as chemical pulp, cellulose fiber, rayon, and acetate are used. As the SAP, for example, starch-based, acrylic acid-based, or amino acid-based particulate or fibrous polymers are used. The core wrap 55 is wound around the absorbent core 54 so as to cover at least a part of the surface of the absorbent core 54.

[0058] The absorbent sheet 3 may further include a cover sheet 56. The cover sheet 56 is disposed between the top sheet 51 and the absorbent core 54 and covers the surface of the absorbent core 54. The cover sheet 56 has a substantially rectangular planar shape and has substantially the same dimensions as the absorber 53 when viewed in the thickness direction. The cover sheet 56 is made of, for example, tissue or nonwoven fabric and has liquid permeability.

[0059] The absorbent sheet 3 is disposed between the bottom plate 11 and the middle frame 12 of the toilet body 2. When the bottom plate 11 and the middle frame 12 are connected via the absorbent sheet 3, as shown in Fig. 4, the flap portions 3b of the absorbent sheet 3 are sandwiched between the fitting recesses 27 and the fitting protrusions 33, and are held between the bottom plate 11 and the middle frame 12. By sandwiching the flap portions 3b of the absorbent sheet 3, the absorber 53 is prevented from breaking and SAP from leaking from the absorbent sheet 3.

[0060] The water-permeable mat 4 is a thin sheet having a porous structure and water permeability. The water-permeable mat 4 is held between the middle frame part 12 and the upper frame part 13 of the toilet body 2, and is placed on the absorbent sheet 3 when used. The water-permeable mat 4 has a function of preventing urine from flowing back from the absorbent sheet 3 while allowing pet urine to pass through. The water-permeable mat 4 is made of a foamed resin having an open cell structure (open cell structure), such as a urethane resin. Since urethane resin has high water resistance, by making the water-permeable mat 4 from a urethane resin, it becomes possible to repeatedly use the water-permeable mat 4 without replacing it. For example, an ether-based urethane resin having high tensile strength is used as the urethane resin.

[0061] Fig. 13 is a plan view showing an enlarged portion of the water-permeable mat 4 according to one embodiment. As shown in Fig. 13, the water-permeable mat 4 has a large number of pores 4a penetrating the water-permeable mat 4 in the thickness direction. The water-permeable mat 4 may have 8 to 20 pores 4a per square inch when viewed in the thickness direction. By setting the number of pores 4a per square inch to 8 to 20, the water-permeable mat 4 can ensure liquid permeability while maintaining its rigidity. The opening shape of the pores 4a may have any planar shape, such as a circle, an ellipse, or a polygon.

[0062] As shown in FIG. 2, the water-permeable mat 4 is placed on the absorbent sheet 3 and used. When no load is applied to the water-permeable mat 4, the water-permeable mat 4 may be placed away from the absorbent sheet 3. A pet using the system toilet 1 sits on the water-permeable mat 4 to urinate. The pet's urine passes through holes 4a formed in the water-permeable mat 4 and moves to the absorbent sheet 3 side, and is absorbed by the absorber 53 of the absorbent sheet 3. At this time, the water-permeable mat 4 prevents the pet's legs from contacting the absorbent sheet 3, so that the urine absorbed by the absorbent sheet 3 is prevented from flowing back to the pet's legs.

[0063] Generally, pets such as dogs prefer to excrete in an environment with moderate cushioning, so if the permeable mat 4 is too rigid, some pets may not like it and avoid using it as a toilet. Therefore, the permeable mat 4 is designed to have a compression work load (WC value) of 13 gf·cm / cm in a dry state according to the KES compression test. 2 More than 60 gf cm / cm 2 The compression work load in the KES compression test is the work load required to reach the maximum pressure when the water-permeable mat 4 is compressed in the thickness direction. The higher this value, the softer the water-permeable mat 4 is and the easier it is to compress.

[0064] The compression work can be measured, for example, by using a Kato Tech KES-G5 handy compression tester. When measuring the compression work, for example, a test piece of the water-permeable mat 4 measuring 5 cm x 10 cm is attached to a test stand, and the test piece is placed over an area of ​​2 cm 2 The specimen is compressed in the thickness direction between two steel plates with circular flat surfaces. The compression speed is 20μm / sec, and the maximum compression load is 4.9kPa. The load P on the specimen is 4.9kPa (50gf / cm 2 ) thickness of the test piece at the load Tm, and 49 Pa (0.5 gf / cm 2 ) The thickness T0 under load is measured, and the compression work WC of the water-permeable mat 4 is calculated based on the following formula (1).

[0065]

number

[0066] In a dry state, the compression work of the permeable mat 4 is 13 gf cm / cm 2 By setting the water-permeable mat 4 at 60 gf·cm / cm or more, it is possible to provide the cushioning that pets prefer. On the other hand, if the water-permeable mat 4 is too soft, the water-permeable mat 4 may be excessively compressed when a pet sits on it, causing the pet's legs to come into contact with the absorbent sheet 3, and causing urine absorbed by the absorbent sheet 3 to flow back into the pet's legs. In contrast, if the compression work of the water-permeable mat 4 is set at 60 gf·cm / cm 2 You can prevent your pet's legs from becoming contaminated by doing the following:

[0067] The permeable mat 4 had a compression work of 13 gf cm / cm even in a wet state in the KES compression test. 2 More than 60 gf cm / cm 2 The wet state refers to a state in which the water-permeable mat 4 is immersed in water for 5 minutes and then the water on the surface of the water-permeable mat 4 is wiped off with a cloth.

[0068] The tensile strength of the water-permeable mat 4 in a wet state is 8N / mm 2 For example, a test piece of 25 mm x 150 mm is cut out from the water-permeable mat 4, and both ends of the test piece are pulled at a speed of 100 mm / min using an autograph testing device, and the force [N] at which the test piece is torn can be regarded as the tensile strength of the water-permeable mat 4. The tensile strength of the water-permeable mat 4 in a dry state may be 90% or more and 110% or less of the tensile strength in a wet state. The tensile strength of the water-permeable mat 4 may be 8 N / mm or more. 2 By doing so, damage to the water-permeable mat 4 when a pet moves on the water-permeable mat 4 can be suppressed.

[0069] The water-permeable mat 4 has a substantially rectangular planar shape, and has dimensions corresponding to the dimensions of the toilet body 2. For example, the water-permeable mat 4 has a length of 400 mm to 600 mm in the longitudinal direction, and a width of 300 mm to 500 mm in the lateral direction.

[0070] Furthermore, the thickness of the water-permeable mat 4 is 2 mm or more and less than 7 mm in its natural state. By making the thickness of the water-permeable mat 4 2 mm or more, when a pet gets on it, the water-permeable mat 4 compresses, causing the pet's legs to come into contact with the absorbent sheet 3, preventing urine from flowing back up to the pet's legs. By making the thickness of the water-permeable mat 4 less than 7 mm, the water permeability of the water-permeable mat 4 can be ensured. Furthermore, in order to prevent urine from flowing back up to the pet's legs, the water-permeable mat 4 has a density of 990 g / cm in the thickness direction. 2 The thickness and rigidity may be such that when a load of 0.5 mm or more is applied, the thickness is 0.5 mm or more.

[0071] The permeable mat 4 has a thickness of 25 kg / m 3 More than 35kg / m 3 The apparent density of the water-permeable mat 4 may be 25 kg / m or less. The apparent density means the mass per unit volume including the volume of the numerous pores 4a. The higher the ratio of the volume of the pores 4a to the volume of the water-permeable mat 4, the lower the apparent density. 3 By setting the apparent density of the water-permeable mat 4 to 25 kg / m or more, the rigidity of the water-permeable mat 4 can be increased, and the water-permeable mat 4 can be compressed, and the pet's legs can be prevented from coming into contact with the absorbent sheet 3. 3 By setting the above, the water permeability of the water-permeable mat 4 can be ensured.

[0072] The water-permeable mat 4 may have an air permeability of 0.001 or more and 0.006 or less. The air permeability is calculated, for example, by the following formula. Air permeability (CC / cm 2 / sec) = 12.5 / airflow resistance value

[0073] The airflow resistance is measured, for example, by cutting a test piece of a predetermined size from the water-permeable mat 4 and measuring the airflow resistance of the test piece using a Kato Tech Co., Ltd. air permeability tester (KES-F8) or an equivalent air permeability tester. For example, air is discharged and sucked through the test piece at a constant flow rate, and the integral value of the pressure loss measured using a semiconductor differential pressure gauge is taken as the airflow resistance. The measurement of the airflow resistance is then repeated multiple times (for example, five times), and the average value is taken as the airflow resistance of the water-permeable mat 4.

[0074] The water-permeable mat 4 may be subjected to a hydrophilization treatment by applying a hydrophilizing agent such as a surfactant. By subjecting the water-permeable mat 4 to a hydrophilization treatment, it is possible to suppress urine from remaining in the water-permeable mat 4. The water-permeable mat 4 may also contain an antibacterial agent containing silver ions. The antibacterial agent can suppress the urine odor remaining in the water-permeable mat 4. By suppressing the urine odor with the hydrophilic agent and the antibacterial agent, it is possible to use the water-permeable mat 4 for a long period of time, and the number of times the water-permeable mat 4 needs to be replaced can be reduced.

[0075] The water-permeable mat 4 is colored in a color different from that of the top sheet 51. For example, the water-permeable mat 4 is colored in a dark color tone such as gray or black in order to reduce the visibility of urine stains on the absorbent sheet 3. Specifically, the lightness L* of the water-permeable mat 4 in the L*a*b* color system may be 55 or less when placed on a standard white board and viewed in the thickness direction.

[0076] Next, a procedure for attaching the absorbent sheet 3 and the water-permeable mat 4 to the toilet body 2 will be described. First, the latches 38 of the middle frame portion 12 are pushed outward in the width direction X by hand to disengage the latches 38 from the connection portions 28 of the bottom plate portion 11. Then, the middle frame portion 12 is lifted and removed from the bottom plate portion 11. Next, the absorbent sheet 3 is placed on the bottom plate portion 11 so that the flap portions 3b of the absorbent sheet 3 are positioned on the outer edge portion 22 of the bottom plate portion 11. Next, the fitting protrusions 33 of the middle frame portion 12 are fitted into the fitting recesses 27 of the bottom plate portion 11, and the middle frame portion 12 is attached to the bottom plate portion 11. As a result, the flap portions 3b of the absorbent sheet 3 are sandwiched between the fitting recesses 27 and the fitting protrusions 33. At this time, the absorbent sheet 3 is pressed against the fitting protrusions 33 while deeply inserted into the fitting recesses 27, so that a strong frictional force acts on the absorbent sheet 3, and the absorbent sheet 3 is held firmly in place.

[0077] Next, the latches 46 of the upper frame portion 13 are pushed outward in the width direction X to release the engagement between the latches 46 and the latches 38 of the middle frame portion 12. Then, the upper frame portion 13 is lifted and removed from the middle frame portion 12. Next, the water-permeable mat 4 is placed on the middle frame portion 12, and the fitting convex portion 44 of the upper frame portion 13 is fitted into the fitting recessed portion 34 of the middle frame portion 12 to attach the upper frame portion 13 to the middle frame portion 12. As a result, the outer edge of the water-permeable mat 4 is sandwiched between the fitting recessed portion 34 and the fitting convex portion 44. At this time, the water-permeable mat 4 is pressed by the fitting convex portion 44 while deeply inserted into the fitting recessed portion 34, so that a strong frictional force acts on the water-permeable mat 4, and the water-permeable mat 4 is firmly held. In particular, since the maximum length of the fitting protrusion 44 is longer than the maximum length of the fitting protrusion 33, the holding force of the upper fitting structure 20 for the water-permeable mat 4 is greater than the holding force of the lower fitting structure 10 for the absorbent sheet 3.

[0078] In addition, the water-permeable mat 4 is pressed downward by the inner peripheral convex portion 43. As a result, frictional force acts between the water-permeable mat 4 and the inner peripheral convex portion 43, and the holding force of the water-permeable mat 4 is further increased.

[0079] When the absorbent sheet 3 and water-permeable mat 4 are attached to the toilet body 2, the system toilet 1 is ready for use. When using the system toilet 1, a pet straddles the relatively narrow second upper frame side 13B and climbs onto the water-permeable mat 4 to urinate. The pet's urine passes through the water-permeable mat 4 and is absorbed by the absorbent sheet 3. After urinating, the pet climbs down from the system toilet 1 by straddling the second upper frame side 13B.

[0080] The absorbent sheet 3 has a high water retention capacity and can be used multiple times. For example, the absorbent sheet 3 can absorb pet urine for three days. Here, the water-permeable mat 4 is placed on the absorbent sheet 3, so that even if the absorbent sheet 3 is used repeatedly, the urine absorbed in the absorbent sheet 3 is prevented from flowing back up the pet's legs. In addition, since the water-permeable mat 4 has a brightness L* of 55 or less, the visibility of urine stains on the absorbent sheet 3 is reduced when the water-permeable mat 4 is placed on the absorbent sheet 3, and it is prevented that the pet dislikes urine stains and avoids using the toilet. Therefore, the frequency of replacing the absorbent sheet 3 can be reduced.

[0081] Next, the procedure for replacing the absorbent sheet 3 will be described. When the pet urinates multiple times and the absorbent sheet 3 needs to be replaced, the latches 38 of the middle frame portion 12 are pushed outward in the width direction X by hand to release the engagement between the latches 38 and the connection portion 28 of the bottom plate portion 11. Then, the middle frame portion 12 is lifted and removed from the bottom plate portion 11. Next, the used absorbent sheet 3 is replaced with a new absorbent sheet 3, and the middle frame portion 12 is reattached to the bottom plate portion 11. In this way, the user can replace the absorbent sheet 3 without directly touching the water-permeable mat 4. Therefore, the absorbent sheet 3 can be replaced without getting hands dirty.

[0082] When replacing the water-permeable mat 4, the water-permeable mat 4 can be removed and replaced individually from the system toilet 1 by removing the upper frame part 13 from the middle frame part 12 in the reverse order to that for attaching the water-permeable mat 4.

[0083] As described above, the water-permeable mat 4 has a compression work (WC value) set to 13 gf cm / cm2 or more and 60 gf cm / cm2 or less, and therefore can provide the cushioning that pets prefer, while preventing urine absorbed by the absorbent sheet 3 from flowing back up into the pet's legs when the pet's legs come into contact with the absorbent sheet 3. Therefore, this water-permeable mat 4 can provide a clean and comfortable excretion environment for pets.

[0084] The water-permeable mat 4 described above is folded and stored in a package 70. Fig. 14 is a schematic cross-sectional view showing a package 70 storing a plurality of water-permeable mats 4. The water-permeable mat 4 is, for example, a bag having a substantially rectangular parallelepiped shape, and is made of, for example, synthetic resin, paper, or a combination thereof. An opening line (not shown) is formed in the package 70, and an opening for taking out the water-permeable mat 4 stored in the package 70 is formed by opening the package 70 along the opening line.

[0085] 14, the water-permeable mat 4 is folded in three and stored in a stacked state inside the package 70. When using the water-permeable mat 4, the water-permeable mat 4 is removed from the package 70 by inserting a finger into the package 70 through the opening of the package 70 and pinching and pulling out the water-permeable mat 4.

[0086] Here, the inner surface 70a of the packaging body 70 is made of a resin film such as polyethylene, polypropylene, or polyethylene terephthalate. Since the inner surface 70a of the packaging body 70 is made of a resin film, the frictional force between the inner surface 70a and the water-permeable mat 4 is reduced, and the water-permeable mat 4 can be easily removed from the packaging body 70.

[0087] Although various embodiments of the water-permeable mat 4 and the system toilet 1 have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the invention. In other words, it should be noted that the above-described embodiments are intended to be illustrative and do not limit the scope of the present invention.

[0088] For example, in the above-mentioned toilet body 2, the bottom plate portion 11 is formed with the fitting recess 27, and the middle frame portion 12 is formed with the fitting protrusion 33, but the bottom plate portion 11 may be formed with an engagement protrusion, the middle frame portion 12 may be formed with a fitting recess, and these engagement protrusions and fitting recesses may be fitted together to connect the middle frame portion 12 to the bottom plate portion 11. Similarly, in the above-mentioned toilet body 2, the middle frame portion 12 is formed with the fitting recess 34, and the upper frame portion 13 is formed with the fitting protrusion 44, but the middle frame portion 12 is formed with an engagement protrusion, the upper frame portion 13 is formed with a fitting recess, and these engagement protrusions and fitting recesses may be fitted together to connect the upper frame portion 13 to the middle frame portion 12.

[0089] In addition, in the above-mentioned toilet body 2, the fitting recess 27, the fitting protrusion 33, the fitting recess 34, and the fitting protrusion 44 are formed in a rectangular shape when viewed from the vertical direction Z, but the shapes of the fitting recess 27, the fitting protrusion 33, the fitting recess 34, and the fitting protrusion 44 are not limited to a rectangular shape. For example, the fitting protrusion 33 and the fitting protrusion 44 may be cylindrical pins, and the fitting recess 27 and the fitting recess 34 may be holes having a circular planar shape that fits into these pins. These fitting recesses 27, the fitting protrusion 33, the fitting recess 34, and the fitting protrusion 44 may be arranged in multiple numbers along the periphery of the bottom plate portion 11, the middle frame portion 12, and the upper frame portion 13, and the fitting protrusion 33 and the fitting protrusion 44 may fit into the fitting recess 27 and the fitting recess 34, respectively, so that the middle frame portion 12 is attached to the bottom plate portion 11 and the upper frame portion 13 is attached to the middle frame portion 12.

[0090] In the above-described toilet body 2, the length in the width direction X of the pair of first middle frame sides 12A is longer than the length in the depth direction Y of the pair of second middle frame sides 12B, but the length in the width direction X of the pair of first middle frame sides 12A may be shorter than the length in the depth direction Y of the pair of second middle frame sides 12B.

[0091] The material of the water-permeable mat 4 is not limited to urethane resin having an open-cell structure. The water-permeable mat 4 has a compression work of 13 gf cm / cm 2 More than 60 gf cm / cm 2 The porous layer may be made of any material as long as it has the following porous structure.

[0092] The present disclosure includes the following:

[0093] [1] A water-permeable mat for pets that is placed on an absorbent sheet and used. It has a porous structure, and in a dry state, the compression work (WC value) according to the KES compression test is 13 gf cm / cm 2 More than 60 gf cm / cm 2 Below is a permeable mat.

[0094] [2] In a wet state, the compression work (WC value) according to the KES compression test is 13 gf cm / cm 2 More than 60 gf cm / cm 2 The following is a water-permeable mat described in [1].

[0095] [3] A water-permeable mat described in [1] or [2], which is made of urethane resin.

[0096] [4] The water-permeable mat according to any one of [1] to [3], which has a lightness L* of 55 or less in the L*a*b* color system when viewed in the thickness direction.

[0097] [5] The water-permeable mat according to any one of [1] to [4], which has a thickness of 2 mm or more and less than 7 mm in its natural state.

[0098] [6] 990g / cm2 in thickness direction 2 The water-permeable mat according to any one of [1] to [5], which has a thickness of 0.5 mm or more when a load is applied thereto.

[0099] [7] A water-permeable mat described in any one of [1] to [6], having 8 to 20 pores per square inch when viewed in the thickness direction.

[0100] [8] Tensile strength in wet condition is 8N / mm 2 The water-permeable mat according to any one of [1] to [7] above.

[0101] [9] A water-permeable mat as described in [8], having a tensile strength in a dry state of 90% or more and 110% or less of the tensile strength in a wet state.

[0102]

[10] The water-permeable mat according to any one of [1] to [9], which is provided with a hydrophilizing agent.

[0103]

[11] The water-permeable mat according to any one of [1] to

[10] , further comprising an antibacterial agent containing silver ions.

[0104]

[12] 25kg / m 3 More than 35kg / m 3 The water-permeable mat according to any one of [1] to

[11] , having the following apparent density:

[0105]

[13] The water-permeable mat according to any one of [1] to

[12] , having an air permeability of 0.001 or more and 0.006 or less.

[0106]

[14] An absorbent sheet having water absorption properties; a water-permeable mat disposed on the absorbent sheet; a toilet body that holds the absorbent sheet and the water-permeable mat; Equipped with The water-permeable mat has a porous structure, and in a dry state, the compression work (WC value) according to the KES compression test is 13 gf cm / cm 2 More than 60 gf cm / cm 2 Below is a system toilet for pets.

[0107]

[15] A package for housing a water-permeable mat for pets that is placed on an absorbent sheet, comprising: The water-permeable mat has a porous structure, and in a dry state, the compression work (WC value) according to the KES compression test is 13 gf cm / cm 2 More than 60 gf cm / cm 2 is as follows: A packaging body the inner surface of which is made of a resin film. [Explanation of symbols]

[0108] 1...pet system toilet, 3...absorbent sheet, 4...water-permeable mat, 4a...hole, 70...packaging body, 70a...inner surface.

Claims

1. A water-permeable mat for pets that is placed on an absorbent sheet and used. It has a porous structure, and in a dry state, the compression work (WC value) according to the KES compression test is 13 gf cm / cm ２ Above, 60gf・cm / cm ２ Below is a permeable mat.

2. In a wet state, the compression work (WC value) according to the KES compression test is 13 gf cm / cm ２ Above, 60gf・cm / cm ２ 2. The water-permeable mat according to claim 1, wherein:

3. 2. The water-permeable mat according to claim 1, which is made of a urethane resin.

4. 4. The water-permeable mat according to claim 3, which has a lightness L* of 55 or less in the L*a*b* color system when viewed in the thickness direction.

5. The water-permeable mat according to claim 1, having a thickness of 2 mm or more and less than 7 mm in a natural state.

6. 990g / cm from thickness direction ２ The water-permeable mat according to claim 5, which has a thickness of 0.5 mm or more when a load of 100 mm is applied thereto.

7. 2. The water-permeable mat according to claim 1, wherein the number of pores per square inch is 8 to 20 as viewed in the thickness direction.

8. Tensile strength in wet state is 8N / mm ２ The water-permeable mat according to claim 1 .

9. 9. The water-permeable mat according to claim 8, wherein the tensile strength in a dry state is 90% or more and 110% or less of the tensile strength in a wet state.

10. 2. The water-permeable mat according to claim 1, which is provided with a hydrophilizing agent.

11. 10. The water-permeable mat of claim 1, comprising an antimicrobial agent containing silver ions.

12. 25kg / m ３ Above, 35kg / m ３ 2. The water-permeable mat of claim 1 having an apparent density of:

13. 2. The water-permeable mat according to claim 1, having an air permeability of 0.001 or more and 0.006 or less.

14. An absorbent sheet having water absorbency; a water-permeable mat disposed on the absorbent sheet; a toilet body that holds the absorbent sheet and the water-permeable mat; Equipped with The water-permeable mat has a porous structure, and in a dry state, the compression work (WC value) according to the KES compression test is 13 gf cm / cm ２ Above, 60gf・cm / cm ２ Below is a system toilet for pets.

15. A package for housing a water-permeable mat for pets that is placed on an absorbent sheet, The water-permeable mat has a porous structure, and in a dry state, the compression work (WC value) according to the KES compression test is 13 gf cm / cm ２ Above, 60gf・cm / cm ２ is as follows: A packaging body the inner surface of which is made of a resin film.

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