Pet sheet and kit

Abstract

The invention provides a pet sheet and a kit. A pet sheet (1) for use on top of an animal excrement treatment sheet, the pet sheet (1) being provided with a liquid-permeable surface sheet (2), a liquid-impermeable rear surface sheet (4) having an adhesive surface, and an absorbent body (3) disposed between the surface sheet (2) and the rear surface sheet (4). The front surface sheet (2), the back surface sheet (4), and the absorber (3) are disposed so that the light transmittance is 60% or less.

Description

[0001] This application is a divisional application of an application with an application date of August 18, 2022, an application number of 202280069854.8 (international application number PCT / JP2022 / 031209), and an invention title of pet sheet and kit. Technical Field

[0002] The present invention relates to a pet sheet for overlapping use with an animal excrement disposal sheet, and a kit including the pet sheet and the animal excrement disposal sheet.

[0003] This application claims priority based on Japanese Patent Application No. 2021-134014 filed in Japan on August 19, 2021, and incorporates its content herein. Background Art

[0004] As an animal excrement disposal sheet for treating excrement excreted by pets such as dogs, there is known an animal excrement disposal sheet having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber located between the above-mentioned top sheet and back sheet (for example, refer to Patent Document 1).

[0005] Various proposals have been made for animal excrement disposal sheets. For example, Patent Document 2 describes a pet sheet having an adhesive layer formed on the back sheet. It is described that since the pet sheet adheres to the surface with which the pet sheet abuts by using this adhesive layer, it becomes easy to prevent movement during use and to maintain the shape when wrapping excrement after use.

[0006] Patent Document 3 describes a urine-absorbing sheet for pet animals, in which a urine absorber exists between a urine-permeable top sheet and a urine-impermeable back sheet, and the top sheet has fixing members capable of attaching and detaching a second urine-absorbing sheet at required positions on its upper surface. It is described that in this urine-absorbing sheet, the second urine-absorbing sheet is fixed by using this fixing member, and the central portion with a high usage frequency can be made into a double-layer structure. The second urine-absorbing sheet is peeled off when the urine reaches the saturation amount or is damaged, and replaced with a new second urine-absorbing sheet.

[0007] Prior Art Documents

[0008] Patent Documents

[0009] Patent Document 1: Japanese Patent Application Laid-Open No. 2003-92940

[0010] Patent Document 2: Japanese Utility Model Registration No. 3054884

[0011] Patent Document 3: Japanese Patent Application Laid-Open No. 8-317740 Summary of the Invention

[0012] Problems to be Solved by the Invention

[0013] Pets tend to avoid urinating on the areas of the animal excrement disposal sheet where there are urine stains. Therefore, the pet intends to avoid the urine stains. Although the body is on the sheet, it urinates in an abnormal urination posture, so there are problems such as urinating outside the animal excrement disposal sheet. In addition, depending on the differences in pets, there are also cases where if a pet feels discomfort such as urine stains on the animal excrement disposal sheet, it will not step on the animal excrement disposal sheet and urinate outside the animal excrement disposal sheet.

[0014] The present invention has been completed in view of the above circumstances, and its object is to provide a pet sheet for overlapping use and a kit including the pet sheet. For the pet sheet for overlapping use, the owner can simply prepare a clean excrement disposal sheet, and the pet is not likely to feel discomfort such as urine stains.

[0015] Solutions for Solving the Problems

[0016] In order to achieve the above object, the present invention includes the following solutions.

[0017] (1) A pet sheet according to one aspect of the present invention is for overlapping use with an animal excrement disposal sheet. The pet sheet includes a liquid-permeable surface sheet, a liquid-impermeable back sheet, and an absorber disposed between the surface sheet and the back sheet. The back sheet has an adhesive surface, and the surface sheet, the back sheet, and the absorber are configured to have a light transmittance of 60% or less.

[0018] (2) According to the pet sheet described in (1) above, it is also possible that the surface sheet, the back sheet, and the absorber are configured such that the product thickness exceeds 0.2 mm and is 10 mm or less.

[0019] (3) According to the pet sheet described in (1) or (2) above, it is also possible that the surface sheet, the back sheet, and the absorber are configured such that the area of the region where the absorber exists in a top view is 80% or less of the entire surface of the pet sheet.

[0020] (4) According to the pet sheet according to any one of the above (1) to (3) aspects, it is also possible that the back sheet and the absorber are configured such that the difference in thickness between the region where the absorber exists and the thickness of the fin region where the absorber does not exist is 0.3 mm or more and 5 mm or less.

[0021] (5) According to the pet sheet according to any one of the above (1) to (4) aspects, it is also possible that the product size is 1500 cm 2 Below.

[0022] (6) The pet sheet described in any one of the above (1) to (5) may also be such that the work of compression WC value obtained by using a KES compression property tester for the pet sheet is 0.03 to 0.35.

[0023] (7) The pet sheet described in any one of the above (1) to (6) may also be such that the contact cool feeling coefficient Qmax value of the pet sheet is 1.0 W / cm 2 or less.

[0024] (8) The pet sheet described in any one of the above (1) to (7) may also be such that the back sheet is a breathable sheet.

[0025] (9) The pet sheet described in any one of the above (1) to (8) may also be such that the top sheet, the back sheet, and the absorber are configured such that the stiffness in the region where the absorber exists is 0.1 mN to 3.0 mN.

[0026] (10) The pet sheet described in any one of the above (1) to (9) may also be such that the pet sheet does not have a crease line.

[0027] (11) The pet sheet described in any one of the above (1) to (10) may also be such that the adhesive surface is arranged in the fin region where the absorber does not exist in a top view.

[0028] (12) The pet sheet described in any one of the above (1) to (10) may also be such that the fin region where the absorber does not exist in a top view does not have an adhesive surface.

[0029] (13) The pet sheet described in any one of the above (1) to (11) may also be such that the pet sheet has a fin region where the absorber does not exist in a top view, and the light transmittance of the fin region is higher than the light transmittance of the region where the absorber exists in a top view.

[0030] (14) The pet sheet described in the above (13) may also be such that the light transmittance of the fin region is 38.4% or more.

[0031] (15) The pet sheet described in the above (13) or (14) may also be such that there is a portion where the top sheet and the back sheet do not overlap in the fin region when viewed from above.

[0032] (16) The pet sheet described in any one of the above (1) to (15) may also be such that, in a top view, the total length of the non - adhesive surfaces where the adhesive surface is not arranged in the product length direction or the product width direction is longer than the total length of the adhesive surface.

[0033] (17) According to the pet sheet described in the above (16), it can also be that, when viewed from above, the total length of the non - adhesive surfaces where the adhesive surfaces are not arranged in the two directions of the product length direction and the product width direction is longer than the total length of the adhesive surfaces.

[0034] (18) According to the pet sheet described in any one of the above (1) - (17), it can also be that, when viewed from above, the lines that trisect the area where the absorber exists in the product length direction and the lines that trisect the area where the absorber exists in the product width direction intersect to form nine divided areas, and the adhesive surface does not exist in the divided area located at the center of the nine divided areas.

[0035] (19) According to the pet sheet described in any one of the above (1) - (18), it can also be that the pet sheet further includes a release paper covering the adhesive surface, the release paper has a non - joined end portion that is not joined to the adhesive surface, the pet sheet has a flap area where the absorber does not exist when viewed from above, and there is a part where the non - joined end portion and the flap area overlap when viewed from above.

[0036] (20) According to the pet sheet described in the above (19), it can also be that the stiffness of the release paper is greater than the stiffness of the flap area.

[0037] (21) According to the pet sheet described in the above (20), it can also be that the stiffness of the release paper is smaller than the stiffness of the area where the absorber exists.

[0038] (22) According to the pet sheet described in any one of the above (1) - (21), it can also be that the pet sheet further includes a release paper covering the adhesive surface, the release paper has a non - joined end portion that is not joined to the adhesive surface, and when viewed from above, the non - joined end portion exists in both the product longitudinal direction and the product transverse direction.

[0039] (23) According to the pet sheet described in the above (22), it can also be that the lengths of the non - joined end portions are different in the product longitudinal direction and the product transverse direction.

[0040] (24) According to the pet sheet described in the above (22) or (23), it can also be that the release paper has a mark indicating peeling along the product inclined direction.

[0041] (25) According to the pet sheet described in any one of the above (22) - (24), it can also be that the release paper is composed of a single sheet.

[0042] (26) According to the pet sheet described in any one of the above (19) - (25), it can also be that there are multiple adhesive surfaces, and the pet sheet includes multiple release papers covering each of the multiple adhesive surfaces.

[0043] (27) According to the pet sheet described in the above (26), it may also be that the adhesive surfaces are disposed at the four corners of the back sheet, and the pet sheet includes a plurality of release papers that respectively cover the adhesive surfaces.

[0044] (28) According to the pet sheet described in any one of the above (19) to (26), it may also be that the adhesive surfaces are present in the central portion and the side portion of the product in a top view, and the length of the adhesive surface present in the central portion of the product in the product width direction is longer than the length of the adhesive surface present in the side portion of the product in the product width direction.

[0045] (29) According to the pet sheet described in any one of the above (19) to (26), it may also be that the adhesive surfaces are present in the central portion and the side portion of the product in a top view, and the length of the adhesive surface present in the central portion of the product in the product width direction is shorter than the length of the adhesive surface present in the side portion of the product in the product width direction.

[0046] (30) According to the pet sheet described in any one of the above (19) to (26), it may also be that the extending direction of the adhesive surface is the same as the extending direction of the non-bonding end portion, and the adhesive surfaces are intermittently disposed in a direction orthogonal to the extending direction of the non-bonding end portion.

[0047] (31) According to the pet sheet described in the above (30), it may also be that the product end portion intersecting the extending direction of the adhesive surface is bonded to the adhesive surface.

[0048] (32) A kit according to one aspect of the present invention includes: the pet sheet described in any one of the above (1) to (31); and an animal excrement treatment sheet, which includes a liquid-permeable surface sheet, a liquid-impermeable back sheet, and an absorber disposed between the surface sheet and the back sheet.

[0049] (33) According to the kit described in the above (32), it may also be that in a top view, the color of the region of the pet sheet where the absorber is present and the color of the region of the animal excrement treatment sheet where the absorber is present are of the same color system.

[0050] (34) According to the kit described in the above (32) or (33), it may also be that the maximum length L2 of the pet sheet is larger than the maximum length L1 of the animal excrement treatment sheet in the longitudinal direction or the transverse direction when 30 cc of artificial urine is dropped onto the animal excrement treatment sheet.

[0051] (35)One embodiment of the animal excrement treatment sheet of the present invention is used by overlapping a pet sheet at the excretion site, and the animal excrement treatment sheet includes a liquid-permeable surface sheet, a liquid-impermeable back sheet, and an absorber disposed between the surface sheet and the back sheet. The maximum length L2 of the pet sheet is larger than the maximum length L1 in the longitudinal or transverse direction of the animal excrement treatment sheet when 30 cc of artificial urine is dropped onto the animal excrement treatment sheet.

[0052] (36)The use of one embodiment of the pet sheet of the present invention includes: pasting a pet sheet with a light transmittance of 60% or less and one side of the product being 13 cm to 17 cm onto the animal excrement treatment sheet, and the maximum length L1 in the longitudinal or transverse direction of the animal excrement treatment sheet when 30 cc of artificial urine is dropped onto the animal excrement treatment sheet is less than 17 cm.

[0053] (37)The use of one embodiment of the pet sheet of the present invention is the use of the animal excrement treatment sheet, and the use of the animal excrement treatment sheet includes: covering the urine stain on the animal excrement treatment sheet with a pet sheet with a light transmittance of 60% or less and one side of the product being 13 cm to 17 cm for reuse, and the maximum length L2 of the pet sheet is larger than the maximum length L1 in the longitudinal or transverse direction of the animal excrement treatment sheet when 30 cc of artificial urine is dropped onto the animal excrement treatment sheet.

[0054] Effects of the Invention

[0055] According to the present invention, it is possible to provide a pet sheet for overlapping use and a kit including the pet sheet. For the pet sheet for overlapping use, the owner can simply prepare a clean excrement treatment sheet, and the pet is not easily aware of discomfort such as urine stains. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 is a perspective view of a pet sheet according to an embodiment of the present invention.

[0057] Figure 2 is a cross-sectional view of a pet sheet according to an embodiment of the present invention along the Figure 1 I-I line in

[0058] Figure 3 is a top view of a pet sheet according to an embodiment of the present invention.

[0059] Figure 4 is a schematic cross-sectional view of a pet sheet in an example.

[0060] Figure 5 is a top view showing an example of the arrangement of the bonding surface in a pet sheet according to an embodiment of the present invention.

[0061] Figure 6 It is a cross-sectional schematic view showing an example of the arrangement of the adhesive surface in a pet sheet according to an embodiment of the present invention.

[0062] Figure 7 It is a top view showing an example of the arrangement of the adhesive surface in a pet sheet according to an embodiment of the present invention.

[0063] Figure 8 It is a cross-sectional schematic view showing an example of the arrangement of the adhesive surface in a pet sheet according to an embodiment of the present invention.

[0064] Figure 9 It is a top view showing an example of the arrangement of the adhesive surface in a pet sheet according to an embodiment of the present invention.

[0065] Figure 10 It is a cross-sectional schematic view showing an example of the arrangement of the adhesive surface in a pet sheet according to an embodiment of the present invention.

[0066] Figure 11 It is a top view showing an example of the arrangement of the adhesive surface in a pet sheet according to an embodiment of the present invention.

[0067] Figure 12 It is a cross-sectional schematic view showing an example of the arrangement of the adhesive surface in a pet sheet according to an embodiment of the present invention.

[0068] Figure 13 It is a top view showing an example of the arrangement of the adhesive surface in a pet sheet according to an embodiment of the present invention.

[0069] Figure 14 It is a top view showing an example of the arrangement of the adhesive surface in a pet sheet according to an embodiment of the present invention.

[0070] Figure 15 It is a top view of a pet sheet according to an embodiment of the present invention.

[0071] Figure 16 It is a cross-sectional schematic view of a pet sheet of an example.

[0072] Figure 17 It is a top view showing an example of the arrangement of the release paper in a pet sheet according to an embodiment of the present invention.

[0073] Figure 18 It is a top view showing an example of the arrangement of the adhesive surface in a pet sheet according to an embodiment of the present invention.

[0074] Figure 19 It is a top view showing an example of the arrangement of the adhesive surface in a pet sheet according to an embodiment of the present invention.

[0075] Figure 20It is a top view showing an example of the arrangement of the adhesive surface in the pet sheet according to an embodiment of the present invention. Detailed Embodiment

[0076] <Pet Sheet>

[0077] Hereinafter, a preferred embodiment of the pet sheet of the present invention will be described in detail with reference to the accompanying drawings. In addition, in this specification, unless otherwise specified, "observing an object (such as an animal excrement treatment sheet, a surface sheet, an absorber, etc.) placed on a horizontal plane in a state where the supply surface of the excrement faces upward along the thickness direction of the object from the upper side in the vertical direction" will be simply referred to as "top view", and further, the view based on this top view will be referred to as "top view drawing".

[0078] Figure 1 is a perspective view of the pet sheet 1 according to an embodiment of the present invention, Figure 2 is along the pet sheet 1 Figure 1 Cross-sectional view taken along line I-I in

[0079] As Figure 1 shown, the pet sheet 1 according to an embodiment of the present invention is a sheet having a product length direction L, a product width direction W, and a thickness direction T, and having a rectangular shape (preferably a square shape) in top view. In addition, when the pet sheet 1 has a square shape in top view, any one side direction of the pet sheet 1 is set as the product length direction L, and the side direction orthogonal to the product length direction L is set as the product width direction W.

[0080] In addition, in the present invention, the outer shape of the pet sheet is not limited to such a rectangular shape, but can adopt any shape such as a polygon, a circle, an ellipse, etc. according to various uses, appearance, etc. In addition, the size of the pet sheet 1 can be appropriately set according to the size, type, etc. of the animal to which the animal excrement treatment sheet overlapping the pet sheet 1 is applied. For example, when the animal to which it is applied is a dog, the length in the product length direction of the animal excrement treatment sheet is typically 250 mm to 1500 mm, preferably 300 mm to 1000 mm, more preferably 400 mm to 950 mm. The length in the product width direction of the animal excrement treatment sheet is typically 200 mm to 1200 mm, preferably 250 mm to 1000 mm, more preferably 300 mm to 650 mm.

[0081] The pet sheet 1 is used in overlapping with an animal excrement treatment sheet. More specifically, the pet sheet 1 is used by overlapping it on the animal excrement treatment sheet so as to cover the excrement of the animal excrement treatment sheet that has absorbed excrement.

[0082] Typically, the animal excrement disposal sheet comprises a liquid-permeable surface sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the surface sheet and the back sheet. The animal excrement disposal sheet is placed in a predetermined position in a breeding space (e.g., indoors, etc.) for animals such as pets in an unfolded state to absorb and retain excrement such as urine excreted from the animals, and is used to keep the breeding space clean. In addition, the animal excrement disposal sheet can be placed directly on the floor or ground of the breeding space, or can be placed via a predetermined bracket, tray, cushion, etc.

[0083] Here, the "animal" to which the excrement disposal sheet for animals is applied is not particularly limited as long as it is an animal that can be kept as a pet, and various animals such as birds, reptiles, and amphibians can be used as targets in addition to mammals such as dogs, cats, and hamsters.

[0084] In the present invention, the "excrement" absorbed and held by the animal excrement disposal sheet is not particularly limited as long as it can be absorbed and held by the absorbent body, and examples thereof include various body fluids such as liquid or low-viscosity feces, urine, saliva such as saliva, and blood.

[0085] Pets tend to avoid urine marks on the animal excrement disposal sheet when defecating. Therefore, pets try to avoid urine marks and urinate in an abnormal urination posture even though their bodies are on the sheet, so there are problems such as urinating outside the animal excrement disposal sheet. In addition, depending on the pet, there is also a case where if the pet feels uncomfortable due to urine marks on the animal excrement disposal sheet, it will not step on the animal excrement disposal sheet and defecate outside the animal excrement disposal sheet.

[0086] The owner has taken measures to address the above problem, such as (a) replacing the animal excrement disposal sheet after each excretion and (b) laying multiple animal excrement disposal sheets on the floor.

[0087] However, in the case of (a), the replacement time is time-consuming and the amount of waste increases. In addition, in the case of (b), when the pet urinates, there are problems such as leakage of excrement from the boundaries of the animal excrement disposal sheets, or excretion avoiding the center of the animal excrement disposal sheet in the second and subsequent excretions.

[0088] On the other hand, although the pet tries hard to defecate on the animal excrement disposal sheet as trained by the owner, it may not defecate properly on the animal excrement disposal sheet or get its feet wet due to its habit of defecation to avoid urine marks on the sheet as described above. If the pet is reprimanded by the owner for not defecate properly on the animal excrement disposal sheet or feels the owner's dissatisfaction, the pet will feel stressed.

[0089] In the present embodiment, the pet sheet 1 is used to cover the urine stain on the animal excrement disposal sheet in an overlapping manner. Thereby, the owner can hide the urine stain on the animal excrement disposal sheet and can simply prepare a clean excrement disposal sheet (the "overlapped use sheet" with the pet sheet 1 overlapped on the used animal excrement disposal sheet). On the other hand, it is not easy for the pet to feel discomfort such as the urine stain on the animal excrement disposal sheet. Therefore, when the pet excretes, it steps correctly onto the overlapped use sheet and does not avoid the part with the urine stain. As a result, it is not easy to leak outside the overlapped use sheet or wet the feet. As a result, both the owner and the pet can relieve the stress related to excretion, and furthermore, they can more deeply recognize each other's existence and build an intimate relationship.

[0090] As Figure 1 and Figure 2 shown, the pet sheet 1 of the present embodiment includes a liquid-permeable surface sheet 2, a liquid-impermeable back sheet 4, and a liquid-absorbent absorber 3 disposed between the surface sheet 2 and the back sheet 4 described above. The surface sheet 2 forms a supply surface for excrement from animal excretion in the thickness direction T (hereinafter, there is a case where it is referred to as the "first surface"), and the back sheet 4 forms a surface on the side opposite to the supply surface of the excrement in the thickness direction T (hereinafter, there is a case where it is referred to as the "second surface") and is the placement surface of the pet sheet 1 (that is, the surface opposite to the surface of the animal excrement disposal sheet on which the pet sheet is placed). The surface sheet 2 and the back sheet 4 are joined to each other at their respective peripheral portions by any joining means such as a hot-melt adhesive.

[0091] The back sheet 4 has an adhesive surface. By bringing the adhesive surface of the back sheet 4 into contact with the urine stain on the animal excrement disposal sheet, the owner can simply hide the urine stain and can reliably hide the urine stain. In addition, when the pet steps on the pet sheet, it is possible to prevent the pet sheet from shifting by using the adhesive, so it is not easy for the animal to feel discomfort.

[0092] Examples of the adhesive constituting the adhesive surface include synthetic rubbers (such as SIS and SBS).

[0093] In addition, in the present embodiment, it may be configured such that the back sheet 4 has a concavo-convex structure as an adhesive area.

[0094] In addition, the configuration structure of the adhesive surface of the back sheet 4 will be described later.

[0095] Figure 31 is a top view of a pet sheet according to an embodiment of the present invention. In the pet sheet 1, the surface sheet 2, the back sheet 4 and the absorber 3 are configured to have a light transmittance of 60% or less, preferably 40% or less, and more preferably 30% or less. Typically, when the pet sheet 1 is viewed from above, the light transmittance in the region 3a where the surface sheet 2, the back sheet 4 and the absorber 3 exist is 60% or less.

[0096] In this embodiment, the light transmittance is measured in accordance with JIS K7361-1: 1997. Specifically, a standard calibration is performed according to the provisions of a haze meter such as HAZEMeter NDH7000SPII (Nippon Denshoku Industries Co., Ltd.), and a sample obtained by cutting the central part of the pet sheet 1 where the absorbent body 3 exists with a size of 30 mm × 30 mm is set and measured. In addition, the size of the sample can be appropriately modified to match the measuring equipment and the sample.

[0097] Since the light transmittance of the pet sheet 1 of this embodiment is 60% or less, it is difficult for the pet to visually recognize urine marks when observing the overlapping sheet. Therefore, the pet will step on the overlapping sheet correctly when defecating, and will not avoid the part with urine marks, so it is difficult to leak outside the overlapping sheet or wet the feet. Especially for the owner who keeps pets indoors, since it is difficult to visually recognize urine marks, the sheet is kept clean, so that the pet can truly feel a comfortable living environment.

[0098] The product thickness of the pet sheet 1 of the present embodiment may be greater than 0.2 mm and less than 10 mm, preferably greater than 1.0 mm and less than 7.0 mm, and more preferably greater than 1.5 mm and less than 5.0 mm.

[0099] If the product thickness of the pet sheet 1 is greater than the lower limit of the above range, the owner will be less likely to feel the urine stain simply by overlapping the pet sheet with the animal excrement disposal sheet. In addition, if the product thickness is greater than the lower limit of the above range, the pet will be less likely to visually recognize the urine stain when observing the overlapped sheet, and will easily recognize it as a new animal excrement disposal sheet without avoiding the urine stain.

[0100] On the other hand, when the pet sheet is overlapped with the animal excrement disposal sheet, the owner is less likely to feel uncomfortable that something is overlapped on the animal excrement disposal sheet to hide urine marks. In addition, when the product thickness is less than the upper limit of the above range, the pet is less likely to feel uncomfortable that there is a foreign object on the overlapping sheet before stepping on the overlapping sheet, so the pet will not avoid the overlapping sheet. Therefore, the pet will not urinate at a position unrelated to the sheet.

[0101] In the present embodiment, the product thickness of the pet sheet 1 can be measured using a commercially available thickness gauge such as the PEACOCK thickness gauge J-B 0.05 mm (manufactured by Ozaki Seisakusho Co., Ltd.). Specifically, when looking down at the pet sheet 1, the lines that trisect the region 3a in the product length direction L and the lines that trisect the region 3a in the product width direction W intersect to form nine divided regions, and the thickness of the central portion of each of these nine divided regions is measured using a thickness gauge, and the average value of the thicknesses at nine locations can be used as the product thickness.

[0102] Alternatively, in the pet sheet 1 of the present embodiment, the surface sheet 2, the back sheet 4, and the absorber 3 are arranged such that the area of the region where the absorber 3 exists when looking down is 80% or less, preferably 75% or less, more preferably 65% or less of the entire surface of the pet sheet 1. Typically, it can be configured such that when looking down at the pet sheet 1, the area of the region 3a where the surface sheet 2, the back sheet 4, and the absorber 3 exist is 80% or less, preferably 75% or less, more preferably 65% or less of the entire surface of the pet sheet 1.

[0103] If the area of the region where the absorber 3 exists is within the above range, the flap region 2a (the flap portion 2a described later) without the absorber is a region that does not hold excrement, so it is easy for the owner to grasp this region (the detachment portion) to detach the pet sheet.

[0104] Alternatively, in the pet sheet 1 of the present embodiment, the back sheet 4 and the absorber 3 are arranged such that the difference in thickness between the region where the absorber 3 exists and the flap region where the absorber 3 does not exist is 0.3 mm or more and 5 mm or less, preferably 1.0 mm or more and 3 mm or less, more preferably 1.0 mm or more and 2 mm or less. Typically, it can be configured such that when looking down at the pet sheet 1, the difference in thickness between the region 3a where the surface sheet 2, the back sheet 4, and the absorber 3 exist and the flap region 2a where the absorber 3 does not exist is 1.0 mm or more and 5 mm or less, preferably 1.0 mm or more and 3 mm or less, more preferably 1.0 mm or more and 2 mm or less.

[0105] If the difference in thickness between the region where the absorber 3 exists and the flap region where the absorber 3 does not exist is equal to or greater than the lower limit value of the above range, it is easy for the owner to visually recognize the detachment portion of the pet sheet.

[0106] On the other hand, if the difference between the thickness of the region where the absorbent body 3 is present and the thickness of the wing region where the absorbent body 3 is not present is below the upper limit of the above range, when the pet sheet is overlapped with the animal excrement disposal sheet, the owner is less likely to feel the discomfort of hiding urine stains by overlapping something on the animal excrement disposal sheet. In addition, the pet will not feel the discomfort of foreign matter on the overlapping sheet before stepping on it, and will be less likely to avoid the overlapping sheet.

[0107] The product size of the pet sheet 1 of this embodiment can be 1500cm 2 Below, preferably 900cm 2 Below, more preferably 300cm 2 the following.

[0108] If the product size is within the above range, the owner can easily install and remove the pet sheet 1 relative to the animal excrement disposal sheet with one hand. In addition, the pet will not feel the discomfort of foreign matter on the overlapping sheet before stepping on the overlapping sheet, so it is easy to avoid the overlapping sheet.

[0109] The product length and product width dimensions (product length x product width) of the pet sheet 1 of this embodiment can be 38 cm or less x 38 cm or less, preferably 30 cm or less x 30 cm or less, more preferably 20 cm or less x 20 cm or less, and further preferably 17 cm or less x 17 cm or less. If the product length and product width dimensions are below the upper limit of the above-mentioned preferred range, it is easy for the owner to easily install and remove the pet sheet 1 relative to the animal excrement disposal sheet with one hand. In addition, the pet will not feel the discomfort of foreign matter on the overlapping sheet before stepping on it, so it is easy for the pet to avoid the overlapping sheet.

[0110] On the other hand, the product length and product width dimensions (product length x product width) of the pet sheet 1 of this embodiment may be 7 cm or more x 7 cm or more, preferably 10 cm or more x 10 cm or more, and more preferably 13 cm or more x 13 cm or more. If the product length and product width dimensions are greater than the lower limit of the above-mentioned preferred range, it is easy to use the pet sheet 1 to hide urine marks.

[0111] The pet sheet 1 of the present embodiment may have a WC (compression work) value of 0.03 to 0.35, preferably 0.05 to 0.30, and more preferably 0.10 to 0.25, as measured by a KES compression characteristic tester.

[0112] Generally, most animal excrement disposal sheets contain a superabsorbent polymer (SAP) in the lower layer sheet. Since the SAP that has absorbed excrement swells locally, when a pet steps on the swollen part, it will feel a gel-like touch, and there are cases where the pet feels uncomfortable.

[0113] If the WC value of the pet sheet 1 obtained using a KES compression property tester is above the lower limit value of the above preferred range, when a pet steps on the overlapping used sheet, it is not easy to feel the discomfort of the urine trace of the lower layer sheet tactilely. Therefore, when stepping on the sheet, it will not avoid that position, and thus urination can be carried out at the correct position. As a result, the possibility of urinating outside the sheet can be reduced. On the other hand, if the WC value is below the upper limit value of the above preferred range, when the pet steps on the pet sheet, the paw pad is not easy to feel discomfort, and thus it is not easy to avoid the pet sheet.

[0114] In this embodiment, the WC value obtained using a KES compression property tester is measured using a commercially available compression tester such as the KES-FB3-AUTO-A compression tester (Kato Tech Co., Ltd.). Specifically, the area (area 3a) where the absorbent body 3 exists when looking at the pet sheet 1 from above is cut into a size of 30 mm × 30 mm as a sample, and the sample is gently sandwiched at the center by the upper and lower disks, and the compression area (the area of the disk) is measured to be 2.0 cm 2 , and the thickness dimension T0 of each sample under a load of 0.49 hPa. Next, the measurement sample is compressed at a compression speed of 0.02 mm / second until it reaches a load of 49.03 hPa, and the thickness dimension Tm under a load of 49.03 hPa is measured. Then, the work done (N·m / m 2 ) WC required to compress from the thickness dimension T0 to the thickness dimension Tm is calculated.

[0115] The Qmax (contact cool feeling coefficient) value of the pet sheet 1 in this embodiment can be 1.0 W / cm 2 or less, preferably 0.5 W / cm 2 or less, and more preferably 0.1 W / cm 2 or less.

[0116] If the Qmax value is within the above range, when a pet steps on the overlapping used sheet, it is not easy to feel a cold touch from the excretion trace of the lower layer sheet of the animal excrement disposal sheet, and the pet will not feel discomfort, so it is easy to become not avoiding the overlapping used sheet.

[0117] In the present embodiment, the Qmax value of the pet sheet 1 can be measured using a commercially available heat flux measuring device such as the KES-F7 (manufactured by Kato Tech Co., Ltd.) contact cold and warm feeling tester. Specifically, after placing the absorbent core or non-absorbent core region on a cooling base (constant temperature table) set at 20°C and maintaining this state for a certain period of time, the sensor part of a hot plate (T-Box) heated to 30°C is placed in such a way that the specimen and the sensor part are in contact with each other, and the Qmax value is measured.

[0118] In the present embodiment, it is also possible that, in the pet sheet 1, the surface sheet, the back sheet, and the absorber are arranged such that the stiffness of the region where the absorber 3 is present is 0.1 mN to 3.0 mN, preferably 0.5 mN to 2.0 mN, and more preferably 0.7 mN to 1.5 mN. Typically, it can be configured such that when looking down at the pet sheet 1, the stiffness of the region 3a where the surface sheet 2, the back sheet 4, and the absorber 3 are present is 0.1 mN to 3.0 mN, preferably 0.5 mN to 2.0 mN, and more preferably 0.7 mN to 1.5 mN.

[0119] If the stiffness of the region where the absorber 3 is present is within the above range, when the owner picks up the pet sheet, the pet sheet itself is not easily bent, and it is easy to simply place the pet sheet completely on the animal excrement disposal sheet with one hand while maintaining the shape of the pet sheet. In addition, if the stiffness of the region where the absorber 3 is present is within the above range, it becomes a moderate hardness, and when the pet steps on the pet sheet, it is not easy to feel discomfort, so it is not easy to avoid the pet sheet.

[0120] In addition, if the surface sheet 2, the back sheet 4, and the absorber 3 are arranged such that the area of the region where the absorber 3 is present is 90% or less of the entire surface of the pet sheet 1 when looking down and the stiffness of the region where the absorber 3 is present is within the above range, when the owner picks up the pet sheet 1, the pet sheet 1 itself is not easily bent, and it is easy to simply place it completely with one hand while maintaining the shape of the pet sheet 1.

[0121] In the present embodiment, the stiffness of the region where the absorber 3 is present can be measured according to the following steps. In addition, for matters not described, follow the "6.7.4 Gurley method" of JIS L 1913:2010 "General test methods for nonwovens".

[0122] (1) In a thermo-hygrostat chamber (temperature: 25 ± 5°C, relative humidity: 65 ± 5%), prepare a No. 311 Gurley type softness tester manufactured by Yasuda Seiki Seisakusho Co., Ltd.

[0123] (2) Leave the specimen to be measured in the above thermo-hygrostat chamber in an unfolded state for 24 hours.

[0124] (3) Cut a sample with a length L = 38 mm and a width d = 25 mm from the test piece in such a way that the test piece extends along a predetermined direction (e.g., the product length direction or the product width direction of the absorbent article). In addition, when the absorbent article is individually packaged, remove the packaging sheet before measurement.

[0125] (4) Set the sample such that 6.3 mm of one end of the sample in the product length direction is held by the chuck portion, and 6.3 mm of the other end of the sample in the product length direction contacts the pendulum B.

[0126] (5) Rotate the movable arm at a constant speed and read the scale (RG1) when the sample separates from the pendulum B (the first time). Next, reverse the front and back of the sample, place the sample on the Gurley stiffness tester, and read the scale (RG2) when the sample separates from the pendulum B (the second time).

[0127] (6) Calculate the stiffness (mN) according to the following formula.

[0128] Stiffness (mN)

[0129] [Equation 1]

[0130]

[0131] The pet sheet 1 of the present embodiment may also not have a crease line.

[0132] If the pet sheet 1 does not have a crease line, when the pet sheet 1 is disposed on the animal excrement disposal sheet, the step of opening the pet sheet 1 can be omitted, and it is easy to paste the pet sheet 1 on the urine mark of the animal excrement disposal sheet without generating wrinkles in one step.

[0133] Hereinafter, various components constituting the pet sheet 1 of the present embodiment will be described in further detail.

[0134] (Surface sheet)

[0135] As Figure 1 and Figure 2 shown, the surface sheet 2 is disposed on the side for supplying the excrement of the animal in the thickness direction T of the pet sheet 1 and is composed of a sheet-like member having liquid permeability that can transfer the excrement excreted from the animal from the excrement supply surface to the opposite surface. As the sheet-like member having liquid permeability constituting such a surface sheet 2, as long as the sheet-like member is composed of white fibers and satisfies the above-mentioned specific necessary conditions, there is no particular limitation. For example, any non-woven fabric such as a hot air non-woven fabric, a spunbond non-woven fabric, or a dot-bonded non-woven fabric can be appropriately used. In addition, the non-woven fabric may be hydrophilized by a surfactant.

[0136] Regarding the white fibers that make up the surface sheet 2, there are no particular limitations as long as the fibers are white. For example, thermoplastic resin fibers added with white pigments or white dyes, thermoplastic resin fibers having a surface structure or crystal structure capable of diffusely reflecting light, etc. can be appropriately used.

[0137] Among such white fibers, from the viewpoint of easily forming a surface sheet that satisfies the above necessary conditions, preferably, the white fibers constituting the surface sheet are thermoplastic resin fibers added with white pigments.

[0138] Here, there are no particular limitations on the white pigments added to the thermoplastic resin fibers. For example, titanium oxide (titanium white), zinc oxide (zinc white), a mixture of barium sulfate and zinc sulfide, basic lead carbonate (lead white), etc. can be cited. However, from the aspects of high refractive index and low toxicity to organisms, the white pigment preferably used is titanium oxide.

[0139] In addition, there are no particular limitations on the type of thermoplastic resin fiber as long as it is a fiber composed of a thermoplastic resin. Examples of such thermoplastic resins include olefin resins such as polyethylene (PE), polypropylene (PP), ethylene-vinyl acetate copolymer (EVA), polyester resins such as polyethylene terephthalate (PET), polylactic acid (PLA), polyamide resins such as nylon 6, etc. These known resins can be used alone or two or more of them can be used simultaneously.

[0140] There are no particular limitations on the structure of the fiber composed of such a thermoplastic resin. For example, composite fibers such as core-sheath type fibers, side-by-side type fibers, sea-island type fibers, etc.; hollow type fibers; profiled cross-section type fibers such as flat, Y-shaped, C-shaped, etc.; three-dimensional crimped fibers with latent crimp or apparent crimp; split fibers divided by physical loads such as water flow, heat, embossing processing, etc. Fibers having the above structures can be used alone or two or more of them can be used simultaneously.

[0141] Among such thermoplastic resin fibers, core-sheath type thermoplastic resin fibers such as polyester (core) / polyethylene (sheath) are preferably used, and core-sheath type thermoplastic resin fibers containing only the above titanium oxide in the core are particularly preferably used.

[0142] If only the core of the core-sheath type thermoplastic resin fiber contains the above titanium oxide, when the light incident on the fiber is reflected by the titanium oxide contained in the core, the reflected light is refracted by the sheath covering the outer surface of the core and exits from the fiber. As a result, more diffuse reflection of light can be achieved. Therefore, even if the content of titanium oxide is small, fibers with a higher whiteness can be obtained.

[0143] Furthermore, if the surface sheet is made of such specific sheath-core type thermoplastic resin fibers (i.e., sheath-core type thermoplastic resin fibers containing titanium oxide only in the core), when manufacturing the surface sheet, the joining of the fibers through hot melting of the sheath part, etc. is not easily hindered by titanium oxide. Therefore, the fibers can be joined more reliably to each other, and the strength of the surface sheet can be made more excellent. As a result, since the core part of the sheath-core type thermoplastic resin fibers constituting the surface sheet is not easily affected by the scratching action of animals, etc., the effect of the above-mentioned titanium oxide can be continuously exerted for a longer time.

[0144] In addition, the fineness of the above-mentioned thermoplastic resin fibers is not particularly limited. For example, the fineness in the range of 1.1 dtex to 8.8 dtex can be cited. However, from the aspects of the strength, softness, liquid permeability, etc. of the non-woven fabric, it is preferably in the range of 1.5 dtex to 4.6 dtex.

[0145] Furthermore, for example, the above-mentioned thermoplastic resin fibers can be subjected to hydrophilization treatment such as treatment with surfactants, hydrophilic agents, etc. (for example, incorporating surfactants into the fiber interior, coating surfactants on the fiber surface, etc.).

[0146] In addition, in the pet sheet 1 of the present embodiment, the surface sheet 2 may be composed only of white fibers, or may contain other fibers that are not white and arbitrary additives.

[0147] As such other fibers, fibers made of the same thermoplastic resin as the above-mentioned thermoplastic resin can be cited, and its content is preferably 75% by mass or less of all the fibers constituting the surface sheet.

[0148] In addition, as arbitrary additives, for example, fragrances, deodorants, antibacterial agents, fungicides, etc. can be cited. In addition, two or more of the above-mentioned additives can also be used simultaneously.

[0149] In the present embodiment, the thickness of the surface sheet 2 is not particularly limited as long as it satisfies the above-mentioned specific necessary conditions, but it is preferably 0.05 mm or more.

[0150] In addition, the thickness of the surface sheet can be measured as follows, for example, using a compression tester (English: COMPRESSION TESTER) (manufactured by Kato Tech Co., Ltd., model: KES-FB3 AUTO-A) as a measuring device. When measuring the thickness of the surface sheet, a measurement specimen sampled from the surface sheet is placed on the above-mentioned measuring device, and the thickness when the pressure applied to the measurement specimen by the measurement terminal is 0.5 g / cm 2 is measured. The thickness of the surface sheet is the average value of the measurement values when N = 10.

[0151] In the present embodiment, the basis weight per unit area of the surface sheet 2 is not particularly limited, but is preferably 8 g / m 2 ~30 g / m 2 and more preferably 10 g / m 2 ~25 g / m 2 .

[0152] (Absorbent body)

[0153] As Figure 2 shown, the absorbent body 3 is disposed on the side of the surface sheet 2 opposite to the supply surface of the excrement, and is an absorbent member that absorbs and holds the excrement that has passed through the surface sheet 2. The surface sheet 2 and the absorbent body 3 are joined together by any adhesive such as a hot-melt adhesive, and the adhesive is disposed between the surface sheet 2 and the absorbent body 3 with a basis weight (e.g., 0.05 g / m 2 ~130 g / m 2 ) and a coating method (e.g., spiral, dot, strip, etc.) that does not hinder the passage of excrement.

[0154] In addition, in the present embodiment, as Figure 1 and Figure 3 shown, the absorbent body 3 has an outer shape that is substantially rectangular (preferably square) in plan view and is disposed in the central region of the pet sheet 1. However, in the present invention, it is not limited to such a manner, and the absorbent body 3 may have any plan view shape other than rectangular, and may also be disposed offset in any direction from the center of the pet sheet 1.

[0155] In the present embodiment, as Figure 2 shown, the absorbent body 3 includes: a hydrophilic upper sheet 31 located on the surface sheet side; an absorbent core 32 located on the back sheet side and formed of an absorbent material for absorbing and holding excrement; and a core wrap sheet 33 that covers the upper sheet 31 and the absorbent core 32 from the back sheet side and is composed of at least one liquid-permeable sheet.

[0156] The upper sheet 31 is composed of white cotton paper (e.g., cotton paper with a basis weight of 8 g / m 2 ~30 g / m 2 formed mainly from bleached softwood kraft pulp) and is disposed to cover the surface of the absorbent core 32 on the surface sheet side of the absorbent body 3 to prevent the absorbent core 32 from deforming.

[0157] In the present embodiment, the upper sheet 31 forms an intermediate layer having a higher density than the absorbent core 32. As a result, the absorbent body 3 is more conspicuous, and it is easier for the pet to recognize the absorbent body 3 that becomes the target of excretion, so that the pet can excrete at the correct position with higher accuracy. In addition, it is easier for the owner to grasp the urine volume, urine color, use location, etc. of the pet.

[0158] In addition, in the present embodiment, the upper sheet 31 and the absorbent core 32 are bonded by spraying water. This spraying of water is a bonding means in which water is sprayed onto the upper surface of the absorbent core 32 (specifically, the first absorbent core 321 made of the superabsorbent polymer 321a) when manufacturing the absorbent body 3, and the upper sheet 31 is pasted thereon. In addition, the water sprayed evaporates later, and the spraying site of the water becomes dry, so that the above-mentioned upper sheet 31 and absorbent core 32 are in a state of direct bonding. If the upper sheet 31 and the absorbent core 32 are bonded by spraying water in this way, there is no adhesive between the upper sheet 31 and the absorbent core 32, and excreta such as urine transferred from the surface sheet side can be quickly absorbed by the absorbent core 32, so that the deodorizing effect can be exerted immediately after the animal excretes, and a comfortable breeding environment can be provided for the owner of the animal, etc.

[0159] The sheet member constituting the upper sheet 31 is not particularly limited. In addition to the above-mentioned cotton paper, for example, any non-woven fabric such as a thermally bonded non-woven fabric or a spunbond non-woven fabric can also be used.

[0160] (Absorbent core)

[0161] In the present embodiment, the absorbent core 32 is composed of granular superabsorbent polymer.

[0162] The superabsorbent polymer used in the present embodiment is not particularly limited as long as it can absorb and retain liquid. For example, any superabsorbent polymer such as polyacrylic acid-based, starch-based, or cellulose-based can be used.

[0163] The weight per unit area of the absorbent core 32 is preferably 15 g / m 2 ~480 g / m 2 and more preferably 55 g / m 2 ~385 g / m 2 and further preferably 80 g / m 2 ~290 g / m 2 .

[0164] In addition, in the present embodiment, the core wrapping sheet 33 is made of the same cotton paper as the above-mentioned upper sheet 31 (for example, cotton paper formed mainly from bleached softwood kraft pulp), and is arranged to wrap the upper sheet 31 and the absorbent core 32 from the back sheet side in the absorbent body 3 to prevent the deformation of the absorbent core 32, the displacement of the upper sheet 31, etc.

[0165] In the present embodiment, the core wrapping sheet is not particularly limited as long as it has liquid permeability and can prevent the deformation of the absorbent core, etc. In addition to the above-mentioned cotton paper, for example, any non-woven fabric such as a thermally bonded non-woven fabric or a spunbond non-woven fabric can also be used.

[0166] (Back sheet)

[0167] In the present embodiment, as Figure 2 shown, the backsheet 4 is arranged to face the floor surface or the ground on which the pet sheet 1 is placed in the thickness direction T of the pet sheet 1, and is composed of a liquid-impermeable sheet member that prevents leakage of excrement discharged by the pet.

[0168] There is no particular limitation on the liquid-impermeable sheet member constituting such a backsheet 4. For example, non-breathable resin films such as polyethylene and polypropylene, laminates in which a non-woven fabric is laminated on the resin film, waterproof or hydrophobic non-woven fabrics, etc. can be appropriately used.

[0169] The backsheet 4 has an adhesive surface 4a. The arrangement structure of the adhesive surface 4a of the backsheet 4 is not particularly limited. For example, the adhesive surface 4a may be arranged in the flap region (flap portion 2a) where the absorber 3 is not present in a plan view.

[0170] If the adhesive surface 4a is present in the flap portion 2a, when the owner attaches the pet sheet 1 to the animal excrement disposal sheet, it is easy to attach it simply and completely so that there is no gap between the flap portion 2a and the lower sheet of the animal excrement disposal sheet, and there will be no excrement marks after attachment. In addition, it is easy to reduce the following risks: Before the pet steps on the overlapping use sheet, since the flap portion 2a is free, the pet may notice the presence of the pet sheet 1 and thus not step on the overlapping use sheet. In addition, the risk of the pet's foot getting stuck in the flap portion and causing the pet sheet to roll up is also reduced.

[0171] Figure 5 , Figure 7 and Figure 9 are plan views showing an arrangement example of the adhesive surface in the pet sheet according to an embodiment of the present invention. Figure 6 , Figure 8 and Figure 10 are schematic cross-sectional views showing an arrangement example of the adhesive surface in the pet sheet according to an embodiment of the present invention.

[0172] In Figure 5 and Figure 6 the examples shown, the adhesive surface 4a is present in a part of the flap portion 2a in a plan view and is arranged only in a predetermined portion of the backsheet 4. In addition, the adhesive surface 4a may be arranged only at the corners of the backsheet 4 as shown in (a) of Figure 6 , or may be arranged in a narrow strip along the end of the backsheet 4 as shown in (b) of Figure 6 .

[0173] According to Figure 5 and Figure 6In this manner, since there is no adhesive surface at least partially in the fin portion, it is easy to form a structure in which the end portion of the fin portion slightly floats above the lower sheet of the animal excrement disposal sheet. Therefore, when the pet sheet is re-pasted in the case where the owner has mispositioned the pet sheet, it is easy to peel off the pet sheet from the animal excrement disposal sheet, making it easy to re-paste. In addition, since there is no bonding member at the center of the absorbent core, it is easy to sense the excrement odor emitted from the lower sheet.

[0174] In Figure 7 and Figure 8 In the example shown, the adhesive surface 4a exists partially or entirely in the fin portion 2a in a top view and is disposed on the entire surface of the back sheet 4. In addition, the adhesive surface 4a can be arranged to cover substantially the entire surface of the back sheet 4 as shown in (a) of Figure 8 , or the adhesive surface 4a can be arranged in a narrow strip to cover the entire surface of the back sheet 4 as shown in (b) of Figure 8 .

[0175] According to Figure 7 and Figure 8 's manner, by having an adhesive in the area overlapping the absorbent core, it is not easily displaced during pasting. In addition, when a pet steps on the sheet, it is not easily displaced, and the discomfort of the sheet is not easily felt.

[0176] In Figure 9 and Figure 10 In the example shown, the adhesive surface 4a exists in the entire fin portion 2a in a top view and is disposed on the entire surface of the back sheet 4. In addition, the surface sheet 2 is folded in so as to cover the end portion of the back sheet 4.

[0177] According to Figure 9 and Figure 10 's manner, there is an adhesive on the entire surface of the area where the absorbent core exists, it is not easily displaced when a pet steps on it, and there is a non-adhesive portion on the side, making it easy for the owner to peel off the pet sheet. Furthermore, since the front and back of the non-adhesive portion are composed of the surface sheet 2 (non-woven fabric), a soft skin feel (compared to a film) can be achieved when the owner peels it off.

[0178] In addition, in this embodiment, the pet sheet 1 may also not have the adhesive surface 4a in the fin area (fin portion 2a) where the absorbent body 3 does not exist in a top view.

[0179] Since there is no adhesive surface in the fin portion, it is easy to form a structure in which the end portion of the fin portion slightly floats above the lower sheet of the animal excrement disposal sheet. Therefore, when the pet sheet is re-pasted in the case where the owner has mispositioned the pet sheet, it is easy to peel off the pet sheet from the animal excrement disposal sheet, making it easy to re-paste.

[0180] Figure 11 The top view shows an example of the arrangement of the adhesive surface in the pet sheet according to an embodiment of the present invention. Figure 12 The schematic cross-sectional view shows an example of the arrangement of the adhesive surface in the pet sheet according to an embodiment of the present invention.

[0181] In Figure 11 and Figure 12 In the example shown, the adhesive surface 4a does not exist in the flap portion 2a in a top view, but only exists in the region 3a and is only arranged in a predetermined portion of the back sheet 4. The adhesive surface 4a may be arranged only at the corner of the region 3a as shown in Figure 12 or may be arranged in other portions of the region 3a.

[0182] In the present embodiment, the back sheet 4 may also be a breathable sheet.

[0183] If the back sheet 4 is a breathable sheet, when the pet approaches the overlapping used sheet for urination, it can sense the excrement odor emitted from the lower sheet of the animal excrement disposal sheet, and thus it is easy to accurately grasp the appropriate excretion position.

[0184] In the present embodiment, it may also be that the pet sheet 1 has a flap region (flap portion 2a) where the absorber 3 does not exist in a top view, and the light transmittance of the flap region is higher than that of the region (region 3a) where the absorber exists in a top view. Specifically, the light transmittance of the flap portion is higher than that of the region where the absorber exists in a top view, and is preferably 38.4% or more, more preferably 63.9% or more.

[0185] When the light transmittance of the flap portion 2a is higher than that of the region 3a, while making the light transmittance of the region 3a lower for easy hiding of urine marks, it is easy to visually recognize the urine overflowing from the region 3a, and thus it is easy to know the replacement time of the pet sheet.

[0186] It may also be that there is a portion in the flap region 2a where the top sheet and the back sheet do not overlap in a top view.

[0187] If there is a portion in the flap region 2a where the top sheet and the back sheet do not overlap in a top view, the light transmittance of this portion is further reduced, so it is easy to visually recognize the urine overflowing from the end of the product, and thus it is easy to know the replacement time of the pet sheet.

[0188] In the present embodiment, for example, as shown in Figure 13 for the pet sheet 1, in a top view, in the product length direction or the product width direction, preferably in both the product length direction and the product width direction, the total length of the non-adhesive surface where the adhesive surface is not arranged is longer than the total length of the adhesive surface.

[0189] When, in a plan view, the total length of the non - adhesive surfaces where the adhesive surface is not provided in the product length direction and / or the product width direction is longer than the total length of the adhesive surface, when assuming that the position of the pet sheet to be pasted needs to be corrected, it is easy to insert the hand and the engaging force is weak, so it is easy to uncover the pet sheet and peel it off.

[0190] In the present embodiment, for example, it can also be as Figure 13 shown in (d) or Figure 14 The pet sheet 1 has the following structure: the lines that trisect the region where the absorber exists in the product length direction and the lines that trisect the region in the product width direction intersect to form nine divided regions, and the adhesive surface does not exist in the divided region arranged at the center of these nine divided regions.

[0191] If the adhesive surface does not exist in the divided region arranged at the center, even if the pet sheet is pasted in such a way that the central part of the pet sheet covers the urine stain, the divided regions are not easily adhered to the animal excrement - treating sheet due to urine, so it is easy to peel off the pet sheet. In addition, if the adhesive surface does not exist in the divided region, the total area of the adhesive surface can be reduced, so it is easy to prevent self - adhesion where the adhesive surfaces are joined to each other in a state where the adhesive surfaces are exposed. This effect is particularly remarkable when peeling off the release paper.

[0192] Figure 15 is a plan view of a pet sheet according to an embodiment of the present invention. Figure 16 is a schematic cross - sectional view of a pet sheet according to an embodiment of the present invention.

[0193] In Figure 15 and Figure 16 In the examples shown, a release paper 5 that covers the adhesive surface 4a of the back sheet 4 is provided. The release paper 5 is not particularly limited as long as it can be peeled off from the back sheet 4 when pasting the pet sheet to expose the adhesive surface 4a.

[0194] In Figure 15 and Figure 16 In the examples shown, the release paper 5 has a non - joined end portion 5a that is not joined to the adhesive surface 4a. In addition, there is a portion where the non - joined end portion 5a overlaps with the flap region 2a.

[0195] If there is a portion where the non - joined end portion 5a overlaps with the flap region 2a, when the stiffness of the flap region 2a is lower than the stiffness of the region 3a where the absorber exists, it is easy to uncover the flap region 2a and easy to peel off the release paper 5. In addition, when the light transmittance of the flap region 2a is higher than the light transmittance of the region 3a where the absorber exists, it is easy to visually recognize the release paper 5 from the surface sheet side and easy to peel off the release paper 5.

[0196] In addition, if the stiffness of the release paper 5 is smaller than that of the region 3a where the absorber is present, the region 3a is less likely to bend compared to the opposite case. Therefore, it is easy to prevent the bonding surfaces 4a from self-adhering to each other when the release paper 5 is peeled off.

[0197] In Figure 15 and Figure 16 In the example shown, when viewed from above, the non-bonded end portions 5a exist in both the longitudinal direction and the lateral direction of the product. If the non-bonded end portions 5a exist in both the longitudinal direction and the lateral direction of the product, the user can peel off the release paper 5 from the non-bonded end portions 5a in either the longitudinal direction or the lateral direction of the product. Therefore, the pressure when peeling off the release paper 5 can be reduced.

[0198] Alternatively, the lengths of the non-bonded end portions 5a may be different in the longitudinal direction and the lateral direction of the product.

[0199] If the lengths of the non-bonded end portions 5a are different in the longitudinal direction and the lateral direction of the product, it is easy to increase the area of the non-bonded end portions 5a and easy to provide the bonding surfaces 4a at the ends of the product. Therefore, for example, it is easy to peel off the release paper 5 along the inclined direction of the product and easy to prevent the deviation of the pasting position. If, when the lengths of the non-bonded end portions 5a are different in the longitudinal direction and the lateral direction of the product, the release paper 5 has a mark indicating peeling along the inclined direction of the product, the user can easily guide the release paper 5 to peel along the inclined direction of the product, and it is even easier to prevent the deviation of the pasting position.

[0200] In Figure 15 and Figure 16 In the example shown, the release paper 5 is composed of a single sheet. If the release paper 5 is composed of a single sheet, it is easy to peel it off in one step when peeling off the release paper 5. In addition, it is easy to peel off the release paper 5 along the inclined direction of the product and easy to prevent the deviation of the pasting position.

[0201] On the other hand, in the case where there are a plurality of bonding surfaces 4a, the structure may be such that, as shown in Figure 17 the example, a plurality of release papers 5 that respectively cover each bonding surface are provided. By providing a structure in which a plurality of release papers 5 that respectively cover each bonding surface are provided, the amount of waste generated when pasting the pet sheet can be reduced. Compared with the case of a single sheet, the size of the release paper becomes smaller. Therefore, the risk of the pet sheet bending during peeling is reduced, and it is easy to prevent the self-adhesion of the bonding surfaces 4a to each other.

[0202] In the present embodiment, a preferred structure is such that the bonding surfaces 4a are arranged at the four corners of the back sheet 4, and a plurality of release papers 5 that cover each bonding surface 4a are provided.

[0203] Figure 18This is a top view showing an example of the arrangement of the adhesive surface of a pet sheet according to an embodiment of the present invention.

[0204] In Figure 18 In the example shown, the adhesive surface 4a is present in the central part and the end part of the product in a top view. Here, the lines that trisect the region where the absorber exists in the product length direction and the lines that trisect the region in the product width direction intersect to form nine divided regions, and the "central part of the product" refers to the divided region arranged in the center of these nine divided regions. In addition, the "side part of the product" refers to any one of the eight regions other than the divided region arranged in the center of the nine divided regions, and these nine divided regions are formed by the intersection of the lines that trisect the region where the absorber exists in the product length direction and the lines that trisect the region in the product width direction.

[0205] The length of the adhesive surface 41a in the product width direction that exists in the central part of the product is longer than the length of the adhesive surface 42a in the product width direction that exists in the side part of the product. Thus, in the case where the release paper 5 is provided, non-bonded end portions 5a are provided at the four corners of the product, so it is easy to pull the release paper 5 in the inclined direction of the product, and self-adhesion between the adhesive surfaces can be prevented.

[0206] Figure 19 This is a top view showing an example of the arrangement of the adhesive surface in a pet sheet according to an embodiment of the present invention.

[0207] In Figure 19 In the example shown, the adhesive surface 4a is present in the central part and the side part of the product in a top view. The length of the adhesive surface 41a in the product width direction that exists in the central part of the product is shorter than the length of the adhesive surface 42a in the product width direction that exists in the side part of the product. Thus, after the pet sheet is pasted, the four corners of the pet sheet are joined, so it is not easy to shift.

[0208] Figure 20 This is a top view showing an example of the arrangement of the adhesive surface in a pet sheet according to an embodiment of the present invention.

[0209] In Figure 20 In the example shown, the extending direction of the adhesive surface 4a is the same as the extending direction of the non-bonded end portion 5a. In addition, the adhesive surface 4a is intermittently arranged in a direction orthogonal to the extending direction of the non-bonded end portion 5a. Thus, when the release paper 5 is peeled off, regions that are not joined to the adhesive surface 4a are formed at both end portions of the release paper 5, and the release paper 5 is easy to uncover, so self-adhesion of the adhesive surface 4a is not likely to occur.

[0210] It is also possible that the end portion of the product that intersects the extending direction of the adhesive surface 4a is joined to the adhesive surface 4a. Thus, the non-bonded end portion 5a extends along one direction, so it is easy for the user to uncover the release paper 5 along one direction.

[0211] (Method for manufacturing pet sheet)

[0212] The pet sheet of the embodiment can be manufactured as follows, for example.

[0213] (1) Manufacture of surface sheet

[0214] Fibers (e.g., PET (core) / PE (skin) core-sheath composite fiber) containing a white pigment (e.g., titanium oxide, etc.) in a predetermined content are supplied to a carding device, and the core-sheath composite fiber is opened in the carding device to form a web. While further conveying the formed web to the downstream side in the conveying direction, for example, it is conveyed to a hot air heating device, and the fibers in the web are intertwined with each other in the heating device, thereby obtaining a hydrophilic non-woven fabric that becomes the surface sheet.

[0215] (2) Manufacture of absorbent body

[0216] Prepare a substantially flat absorbent core containing the above absorbent material. Further, the above upper sheet is pasted on the upper surface of the absorbent core, and then the upper sheet and the absorbent core are covered with an arbitrary core wrapping sheet, thereby obtaining an absorbent body.

[0217] (3) Manufacture of animal excrement treatment sheet

[0218] For example, the second surface of the above surface sheet is joined to the upper sheet side of the absorbent body using a hot melt adhesive. Then, for example, a non-breathable sheet made of polyethylene is disposed as the back sheet on the other side of the absorbent body on the second absorbent core side. In a state where the absorbent body is sandwiched between the surface sheet and the back sheet, the peripheral portions of the surface sheet and the back sheet are joined using a hot melt adhesive, thereby obtaining the animal excrement treatment sheet of the present invention as in the above embodiment.

[0219] The pet sheet of the present invention is not limited to the above embodiments, examples described later, etc., and can be appropriately combined, changed, etc. within the scope not departing from the object and gist of the present invention. For example, in another embodiment of the present invention, it may be that the pet sheet has an intermediate sheet between the surface sheet and the absorbent body or between the absorbent body and the back sheet or both, and the intermediate sheet has liquid diffusibility in the product length direction L and / or the product width direction W. If the pet sheet has such an intermediate sheet, the excrement can be diffused in the product length direction L and / or the product width direction W by the intermediate sheet and then absorbed by the absorbent body, so that excellent absorption performance such as high absorption efficiency and low liquid return can be exhibited.

[0220] In addition, in this specification, ordinal numbers such as "first" and "second" are used to distinguish matters with such ordinal numbers, and do not mean the order, priority, importance, etc. of each matter.

[0221] <Kit>

[0222] The kit of the present embodiment includes the pet sheet and the animal excrement disposal sheet. The animal excrement disposal sheet includes a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber disposed between the above-mentioned top sheet and back sheet.

[0223] According to the kit of the present embodiment, by bonding the back sheet, the owner can hide the urine stain only by overlapping the sheet on the urine stain on the animal excrement disposal sheet, and can reliably hide the urine stain. In addition, since the light transmittance is 60% or less, when observing the overlapping sheet, it is difficult for the pet to visually recognize the urine stain. Therefore, when the pet excretes, it steps correctly on the overlapping sheet and does not avoid the area where the urine stain exists. Therefore, urine is not likely to leak outside the overlapping sheet or wet the feet.

[0224] In the kit of the present embodiment, it may also be that, in a plan view, the color of the region of the pet sheet where the absorber is present and the color of the region of the animal excrement disposal sheet where the absorber is present are the same color system. Here, for the "same color system", it is only necessary that the user can judge that the color of the region of the pet sheet where the absorber is present and the color of the region of the animal excrement disposal sheet where the absorber is present are the same color. Specifically, it is set as the region where the color difference is less than 13 when measured using a color difference meter CR-300 manufactured by Konica Minolta Inc. or an equivalent color difference meter, or the region where the deviation in the 24-color color comparison chart classified according to the Ostwald color phase ring is 1 or less.

[0225] If the color of the region of the pet sheet where the absorber is present and the color of the region of the animal excrement disposal sheet where the absorber is present are the same color system, when the pet sheet is overlapped on the animal excrement disposal sheet, the owner is less likely to feel the discomfort of overlapping something on the animal excrement disposal sheet to hide the urine stain. In addition, before the pet steps on the overlapping sheet, it is less likely to feel discomfort to the extent that it mistakes the overlapping sheet for a new animal excrement disposal sheet, and the pet is more likely to become not to avoid the overlapping sheet.

[0226] In the kit of the present embodiment, the colors of the pet sheet and the animal excrement disposal sheet are not particularly limited, and examples include blue, green, gray, white, etc. Here, blue is 13-19 on the Ostwald color phase ring, and green is 19-24 on the Ostwald color phase ring.

[0227] In the kit of the present embodiment, it may also be that the maximum length L2 of the pet sheet is larger than the maximum length L1 in the longitudinal direction or the transverse direction when 30 cc of artificial urine is dropped onto the animal excrement disposal sheet.

[0228] If the above L2 is larger than the above L1, even if the frequency of replacing the animal excrement disposal sheet is reduced, the owner can easily hide the urine stain by simply overlapping the pet sheet on the urine stain, making it easier to hide the urine stain more reliably.

[0229] In addition, the artificial urine is not particularly limited as long as it can be used for the evaluation of absorbent articles. For example, it can be an aqueous solution composed of 0.780% by mass of sodium chloride, 0.022% by mass of calcium chloride, 0.038% by mass of magnesium sulfate, 0.002% by mass of Blue No. 1, and ion-exchanged water.

[0230] <Animal excrement disposal sheet>

[0231] The animal excrement disposal sheet of the present embodiment is used by overlapping the pet sheet on the excretion site.

[0232] The animal excrement disposal sheet of the present embodiment includes a liquid-permeable surface sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the above-mentioned surface sheet and the back sheet. Compared with the maximum length L1 in the longitudinal direction or the transverse direction when 30 cc of artificial urine is dropped onto the animal excrement disposal sheet, the maximum length L2 of the pet sheet is larger.

[0233] If the above L2 is larger than the above L1, even if the frequency of replacing the animal excrement disposal sheet is reduced, the owner can hide the urine stain by simply overlapping the pet sheet on the urine stain.

[0234] Examples

[0235] Hereinafter, the present invention will be described in more detail by way of examples, but the present invention is not limited by these examples.

[0236] (Manufacture of pet sheet)

[0237] The pet sheets used in each test example were obtained by joining the surface sheet, the absorbent body, and the back sheet by a known method.

[0238] (Test example 1: Evaluation of light transmittance)

[0239] Standard calibration was performed in accordance with the specifications of the haze meter NDH7000SPII (Nippon Denshoku Industries Co., Ltd.), and each sample sheet (30 mm × 30 mm) shown in Table 1 was set, and the light transmittance (%) was measured. The results are shown in Table 1.

[0240] In addition, each sample was visually observed, and the visual recognition of the urine stain was evaluated according to the following criteria. The results are shown in Table 1.

[0241] ○: The urine stain cannot be visually recognized.

[0242] △: Slight visual recognition of urine traces is possible.

[0243] ×: Visual recognition of urine traces is possible.

[0244] Then, each sample was pasted onto an animal excrement disposal sheet to obtain an overlapping use sheet. The overlapping use sheet obtained was used to observe the excretion behavior of dogs, and the visual discomfort was evaluated according to the following criteria. The results are shown in Table 1.

[0245] ○: The dog stepped on the overlapping use sheet and excreted.

[0246] △: The dog avoided the overlapping use sheet and excreted at other parts of the pet sheet.

[0247] ×: The dog avoided the overlapping use sheet and excreted outside the pet sheet.

[0248] [Table 1]

[0249]

[0250] In Table 1, each abbreviation has the following meanings.

[0251] Tt: Total light transmittance (%): The transmittance of the light passing through the test piece, including all parallel components (P.T) and diffused components (Dif).

[0252] (1): Sample having a surface sheet, an absorber, and a back sheet (the same applies to the following tables).

[0253] T / S: Sample having only a surface sheet (the same applies to the following tables).

[0254] B / S: Sample having only a back sheet (the same applies to the following tables).

[0255] T / S, B / S: Sample having only a surface sheet and a back sheet (the same applies to the following tables).

[0256] (Test Example 2: Evaluation of product thickness)

[0257] When looking down at each sample shown in Table 2, the thickness at the center of each of the nine divided regions formed by the intersection of the lines that trisect the region 3a in the product length direction L and the lines that trisect the product width direction W was measured using a PEACOCK thickness gauge J-B 0.05mm (manufactured by Ozaki Seisakusho Co., Ltd.), and the average value of the thicknesses at the nine locations was taken as the product thickness. The results are shown in Table 2.

[0258] In addition, the visual recognition of urine traces was evaluated in the same manner as in Test Example 1. The results are shown in Table 2.

[0259] In addition, visual discomfort was evaluated in the same manner as in Test Example 1. The results are shown in Table 2.

[0260] [Table 2]

[0261]

[0262] (Test Example 3: Evaluation of the area ratio of the absorber)

[0263] Based on the dimensions of each sample and the absorber, the area ratio (%) of the region where the absorber exists to the entire surface of each sample was calculated when looking at each sample from above. The results are shown in Table 3.

[0264] In addition, the misalignment when re-pasting each sample after pasting it once onto the animal excrement disposal sheet was confirmed, and the ease of gripping the flap portion was evaluated according to the following criteria. The results are shown in Table 3.

[0265] ○: No misalignment occurred when re-pasting the sample.

[0266] △: Some misalignment occurred when re-pasting the sample.

[0267] ×: Misalignment occurred when re-pasting the sample.

[0268] [Table 3]

[0269]

[0270] (Test Example 4: Evaluation of the difference in thickness between the region with the absorber and the region without the absorber)

[0271] For each sample shown in Table 4, the difference in thickness between the region with the absorber and the region without the absorber was evaluated. The thickness of the region with the absorber was measured in the same manner as in Test Example 2. For the thickness of the region without the absorber (flap portion), in addition to measuring at an arbitrary part of the flap portion, it was measured in the same manner as in Test Example 2. The results are shown in Table 4.

[0272] Then, each sample was visually observed, and the visual recognition of the flap portion was evaluated according to the following criteria. The results are shown in Table 4.

[0273] ○: The flap portion can be visually recognized.

[0274] ×: The flap portion cannot be visually recognized.

[0275] In addition, for each sample, visual discomfort was evaluated in the same manner as in Test Example 2. The results are shown in Table 4.

[0276] [Table 4]

[0277]

[0278] (Test Example 5: Evaluation of Product Dimensions)

[0279] The product dimensions were measured for each of the samples shown in Table 5. The results are shown in Table 5.

[0280] In addition, for each sample, the ease of installation and disassembly with respect to the animal excrement treatment sheet was evaluated according to the following criteria. The results are shown in Table 5.

[0281] ○: Can be smoothly installed and disassembled with respect to the animal excrement treatment sheet.

[0282] △: Slightly difficult to install and disassemble with respect to the animal excrement treatment sheet.

[0283] ×: Difficult to smoothly install and disassemble with respect to the animal excrement treatment sheet.

[0284] [Table 5]

[0285]

[0286] (Test Example 6: Evaluation Using a KES Compression Property Tester)

[0287] The center of each of the samples (30 mm × 30 mm) shown in Table 6 was gently clamped by the upper and lower disks, and the compression area (the area of the disk) 2.0 cm 2 , the thickness dimension T0 of each sample under a load of 0.49 hPa was measured. Next, the measurement sample was compressed at a compression speed of 0.02 mm / second until it reached a load of 49.03 hPa, and the thickness dimension Tm under a load of 49.03 hPa was measured. In addition, the work amount (N·m / m 2 ) required to compress from the thickness dimension T0 to the thickness dimension Tm was designated as WC, the work amount required to recover from the thickness dimension Tm to the thickness dimension T0 was designated as WC2, and the compression recovery rate RC (%) was calculated based on the following calculation formula. The results are shown in Table 6.

[0288] RC (%) = WC2 / WC × 100

[0289] In addition, each sample was pasted on the urine stain on the animal excrement treatment sheet, each sample was pressed with a finger, and the urine touch feeling was evaluated according to the following criteria. The results are shown in Table 6.

[0290] ○: No urine touch feeling.

[0291] △: Some urine touch feeling is felt.

[0292] ×: Urine touch feeling is felt.

[0293] In addition, each sample was pasted onto an animal excrement treatment sheet to obtain an overlapping use sheet. The overlapping use sheet thus obtained was used to observe the excretion behavior of dogs, and the tactile discomfort was evaluated according to the following criteria. The results are shown in Table 6.

[0294] ○: The dog stepped on the overlapping use sheet and excreted.

[0295] △: The dog stepped on the overlapping use sheet and excreted, but showed actions such as changing posture.

[0296] ×: After the dog stepped on the overlapping use sheet, it avoided the above-mentioned component and excreted at other parts of the pet sheet.

[0297] [Table 6]

[0298]

[0299] (Test Example 7: Evaluation of Qmax value)

[0300] For the samples of each test example, after placing the absorbent core or non-absorbent core region on a cooling base (constant temperature table) set at 20 °C and maintaining this state for a certain period of time, the sensor part of a hot plate heated to 30 °C was placed in such a way that the sample and the sensor part were in relative contact, and the Qmax value was measured. The results are shown in Table 7. In addition, in Table 7, "cotton paper" is a sample with only a core wrapper.

[0301] In addition, each sample was pasted on the urine stain on the animal excrement treatment sheet, and each sample was touched with a finger, and the contact cold feeling was evaluated according to the following criteria. The results are shown in Table 7.

[0302] ○: No cold feeling.

[0303] △: A slight cold feeling is felt.

[0304] ×: A cold feeling is felt.

[0305] [Table 7]

[0306]

[0307] (Test Example 8: Evaluation of the stiffness of the region with an absorber)

[0308] For each sample shown in Table 8, the stiffness (mN) of the region where the absorber 3 was present was measured according to the above steps. The results are shown in Table 8.

[0309] In addition, for each sample, the urine touch feeling was evaluated in the same way as in Test Example 6. The results are shown in Table 8.

[0310] In addition, for each sample, tactile discomfort was evaluated in the same manner as in Test Example 6. The results are shown in Table 8.

[0311] [Table 8]

[0312]

[0313] Explanation of Reference Numerals

[0314] 1. Pet sheet; 2. Surface sheet; 2a. Fin portion; 3. Absorbent body; 31. Upper sheet; 32. Absorbent core; 33. Core wrapper sheet; 3a. Region where the surface sheet, back sheet, and absorbent body are present; 4. Back sheet; 4a. Adhesive surface; 5. Release paper; 5a. Non-bonded end portion.

Claims

1. A pet sheet for use in overlapping with an animal excrement disposal sheet, wherein, the pet sheet includes a liquid-permeable surface sheet, a liquid-impermeable back sheet, and an absorber disposed between the surface sheet and the back sheet, the back sheet has an adhesive surface, the surface sheet, the back sheet, and the absorber are configured to have a light transmittance of 60% or less.

2. The pet sheet according to claim 1, wherein, the surface sheet, the back sheet, and the absorber are configured to have a product thickness exceeding 0.2 mm and being 10 mm or less.

3. The pet sheet according to claim 1, wherein, the surface sheet, the back sheet, and the absorber are configured such that the area of the region where the absorber exists in a top view is 80% or less of the entire surface of the pet sheet.

4. The pet sheet according to claim 1, wherein, the back sheet and the absorber are configured such that the difference in thickness between the region where the absorber exists and the thickness of the fin region where the absorber does not exist is 0.3 mm or more and 5 mm or less.

5. The pet sheet according to claim 1, wherein, The product size is 1500 cm 2 or less.

6. The pet sheet according to claim 1, wherein, the WC value of the compression work obtained by using a KES compression property tester for the pet sheet is 0.03 to 0.

35.

7. The pet sheet according to claim 1, wherein, The Qmax value of the contact cooling coefficient of this pet film is 1.0 W / cm 2 or less.

8. The pet sheet according to claim 1, wherein, the back sheet is a breathable sheet.

9. The pet sheet according to claim 1, wherein, the surface sheet, the back sheet, and the absorber are configured such that the stiffness of the region where the absorber exists is 0.1 mN to 3.0 mN.

10. The pet sheet according to claim 1, wherein, the pet sheet does not have a folding line.

11. The pet sheet according to any one of claims 1 to 10, wherein, the adhesive surface is disposed in the fin region where the absorber does not exist in a top view.

12. The pet sheet according to claim 1, wherein, the back sheet does not have an adhesive surface in the fin region where the absorber does not exist in a top view.

13. The pet sheet according to claim 1, wherein, the pet sheet has a fin region where the absorber does not exist in a top view, and the light transmittance of the fin region is higher than that of the region where the absorber exists in a top view.

14. The pet sheet according to claim 13, wherein, the light transmittance of the fin region is 38.4% or more.

15. The pet sheet according to claim 13, wherein, there is a portion where the surface sheet and the back sheet do not overlap in the fin region in a top view.

16. The pet sheet according to claim 1, wherein, in a top view, the total length of the non-adhesive surfaces where the adhesive surface is not disposed in the product length direction or the product width direction is longer than the total length of the adhesive surface.

17. The pet sheet according to claim 16, wherein, in a top view, the total length of the non-adhesive surfaces where the adhesive surface is not disposed in both the product length direction and the product width direction is longer than the total length of the adhesive surface.

18. The pet sheet according to claim 1, wherein, When viewed from above, a line that trisects the region with the absorber in the product length direction and a line that trisects the region in the product width direction intersect to form nine divided regions, and the adhesive surface does not exist in the divided region located at the center of the nine divided regions.

19. The pet sheet according to claim 1, wherein, the pet sheet further includes a release paper covering the adhesive surface, the release paper has a non-bonded end portion that is not bonded to the adhesive surface, the pet sheet has a flap region where the absorber does not exist when viewed from above, there is a portion where the non-bonded end portion and the flap region overlap when viewed from above.

20. The pet sheet according to claim 19, wherein, the stiffness of the release paper is greater than the stiffness of the flap region.

21. The pet sheet according to claim 20, wherein, the stiffness of the release paper is less than the stiffness of the region where the absorber exists.

22. The pet sheet according to claim 1, wherein, the pet sheet further includes a release paper covering the adhesive surface, the release paper has a non-bonded end portion that is not bonded to the adhesive surface, when viewed from above, the non-bonded end portion exists in both the product longitudinal direction and the product lateral direction.

23. The pet sheet according to claim 22, wherein, the lengths of the non-bonded end portion in the product longitudinal direction and the product lateral direction are different.

24. The pet sheet according to claim 22, wherein, the release paper has a mark indicating peeling along the product inclined direction.

25. The pet sheet according to claim 22, wherein, the release paper is composed of a single sheet.

26. The pet sheet according to claim 19, wherein, there are multiple adhesive surfaces, the pet sheet includes multiple release papers covering each of the multiple adhesive surfaces.

27. The pet sheet according to claim 26, wherein, the adhesive surfaces are arranged at the four corners of the back sheet, the pet sheet includes multiple release papers respectively covering each adhesive surface.

28. The pet sheet according to claim 19, wherein, the adhesive surfaces exist in the product central portion and the product side portion when viewed from above, the length of the adhesive surface in the product width direction existing in the product central portion is longer than the length of the adhesive surface in the product width direction existing in the product side portion.

29. The pet sheet according to claim 19, wherein, the adhesive surfaces exist in the product central portion and the product side portion when viewed from above, the length of the adhesive surface in the product width direction existing in the product central portion is shorter than the length of the adhesive surface in the product width direction existing in the product side portion.

30. The pet sheet according to claim 19, wherein, the extending direction of the adhesive surface is the same as the extending direction of the non-bonded end portion, the adhesive surfaces are arranged discontinuously in the direction orthogonal to the extending direction of the non-bonded end portion.

31. The pet sheet according to claim 30, wherein, the product end portion intersecting with the extending direction of the adhesive surface is bonded to the adhesive surface.

32. A kit, wherein, the kit includes: the pet sheet according to any one of claims 1 to 31; and An animal excrement treatment sheet, which comprises a liquid-permeable surface sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the surface sheet and the back sheet.

33. The kit according to claim 32, wherein in a plan view, the color of the region of the pet sheet where the absorbent body is present and the color of the region of the animal excrement treatment sheet where the absorbent body is present are of the same color system.

34. The kit according to claim 32 or 33, wherein compared with the maximum length L1 in the longitudinal direction or the transverse direction of the animal excrement treatment sheet when 30 cc of artificial urine is dropped onto the animal excrement treatment sheet, the maximum length L2 of the pet sheet is larger.

35. An animal excrement treatment sheet, which is used for overlapping and using with a pet sheet at the excrement site, wherein the animal excrement treatment sheet comprises a liquid-permeable surface sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the surface sheet and the back sheet, compared with the maximum length L1 in the longitudinal direction or the transverse direction of the animal excrement treatment sheet when 30 cc of artificial urine is dropped onto the animal excrement treatment sheet, the maximum length L2 of the pet sheet is larger.

36. A use of a pet sheet, wherein the use of the pet sheet includes: pasting a pet sheet with a light transmittance of 60% or less and one side of the product being 13 cm to 17 cm on an animal excrement treatment sheet, the maximum length L1 in the longitudinal direction or the transverse direction of the animal excrement treatment sheet when 30 cc of artificial urine is dropped onto the animal excrement treatment sheet is less than 17 cm.

37. A use of an animal excrement treatment sheet, wherein the use of the animal excrement treatment sheet includes: covering the urine stain on the animal excrement treatment sheet with a pet sheet with a light transmittance of 60% or less and one side of the product being 13 cm to 17 cm for reuse, and compared with the maximum length L1 in the longitudinal direction or the transverse direction of the animal excrement treatment sheet when 30 cc of artificial urine is dropped onto the animal excrement treatment sheet, the maximum length L2 of the pet sheet is larger.

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