Pet Tablets and Kits

Abstract

A pet sheet (1) is used to be overlapped with an animal excrement disposal sheet, wherein the pet sheet (1) comprises a liquid-permeable surface sheet (2), a liquid-impermeable back sheet (4), and an absorbent body (3) arranged between the surface sheet (2) and the back sheet (4), wherein the back sheet (4) has an adhesive surface, and the surface sheet (2), the back sheet (4) and the absorbent body (3) are arranged so that the light transmittance is less than 60%.

Description

Technical Field

[0001] The present invention relates to a pet sheet for overlapping with an animal excrement disposal sheet and a kit comprising the pet sheet and the animal excrement disposal sheet.

[0002] This application claims priority based on Japanese Patent Application No. 2021-134014 filed in Japan on August 19, 2021, and the contents are incorporated herein. Background Art

[0003] As animal excrement disposal sheets for disposing excrement of pets such as dogs, there are known animal excrement disposal sheets having a liquid permeable top sheet, a liquid impermeable back sheet, and an absorbent body located between the top sheet and the back sheet (see, for example, Patent Document 1).

[0004] Various proposals have been proposed as animal excrement disposal sheets. For example, Patent Document 2 describes a pet sheet having an adhesive layer formed on a back sheet. The following content is described: Since the pet sheet is attached to the surface to which the pet sheet abuts by the adhesive layer, it is easy to prevent movement during use and to keep the shape of excrement when it is wrapped after use.

[0005] Patent document 3 describes a diaper for pet animals, wherein a urine absorber is provided between a urine-permeable surface sheet and a urine-impermeable back sheet, wherein the surface sheet has a fixing member capable of attaching and detaching a second diaper at a desired position on its upper surface. The following contents are described: In the diaper, the fixing member is used to fix the second diaper, so that the central portion with a high frequency of use can be made into a double-layer structure, and the second diaper is peeled off when the urine reaches saturation or is damaged, and replaced with a new second diaper.

[0006] Prior art literature

[0007] Patent Literature

[0008] Patent Document 1: Japanese Patent Application Publication No. 2003-92940

[0009] Patent Document 2: Japanese Utility Model Registration No. 3054884

[0010] Patent Document 3: Japanese Patent Application Laid-Open No. 8-317740 Summary of the invention

[0011] Problem that the invention aims to solve

[0012] Pets tend to avoid urine marks on the animal excrement disposal sheet when defecating. Therefore, the pet intends to avoid urine marks, and although the pet's 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 pet, there is also a case where if the pet feels uncomfortable with 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.

[0013] The present invention is made in view of the above situation, and its object is to provide a pet sheet for overlapping use and a kit including the pet sheet, for which the owner can easily prepare a clean excrement disposal sheet and the pet is less likely to feel discomfort such as urine stains.

[0014] Solutions for solving problems

[0015] In order to achieve the above object, the present invention includes the following solutions.

[0016] (1) A pet sheet according to one embodiment of the present invention is used to be overlapped with an animal excrement disposal sheet, wherein the pet sheet comprises a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body arranged between the top sheet and the back sheet, wherein the back sheet has an adhesive surface, and the top sheet, the back sheet, and the absorbent body are arranged so that the light transmittance is not more than 60%.

[0017] (2) According to the pet sheet described in (1) above, the top sheet, the back sheet, and the absorbent body may be arranged so that the product thickness exceeds 0.2 mm and is 10 mm or less.

[0018] (3) According to the pet sheet described in (1) or (2) above, the top sheet, the back sheet and the absorbent body may be arranged so that the area of ​​the region where the absorbent body exists is less than 80% of the entire surface of the pet sheet in a plan view.

[0019] (4) According to any one of the above (1) to (3) pet sheets, the back sheet and the absorber may be arranged so that the difference between the thickness of the region where the absorber is present and the thickness of the wing sheet region where the absorber is not present is 0.3 mm or more and 5 mm or less.

[0020] (5) The pet sheet according to any one of the above (1) to (4) may have a product size of 1500 cm 2 the following.

[0021] (6) According to any one of the above (1) to (5), the pet sheet may have a compression work value WC of 0.03 to 0.35 as measured by a KES compression characteristic tester.

[0022] (7) According to any one of the above (1) to (6), the pet sheet may have a contact coolness coefficient Qmax value of 1.0 W / cm 2 the following.

[0023] (8) In the pet sheet according to any one of (1) to (7) above, the back sheet may be a breathable sheet.

[0024] (9) In the pet sheet according to any one of (1) to (8), the top sheet, the back sheet, and the absorbent body may be arranged so that the stiffness of the region where the absorbent body is present is 0.1 mN to 3.0 mN.

[0025] (10) The pet film according to any one of (1) to (9) above may have no fold lines.

[0026] (11) In the pet sheet according to any one of (1) to (10), the adhesive surface may be disposed in a wing region where the absorbent body is not present when viewed from above.

[0027] (12) In the pet sheet according to any one of (1) to (10), the wing region where the absorbent body is not present may have no adhesive surface when viewed from above.

[0028] (13) According to any one of the above (1) to (11), the pet sheet may include a wing sheet region where the absorber is not present when viewed from above, and the light transmittance of the wing sheet region is higher than the light transmittance of a region where the absorber is present when viewed from above.

[0029] (14) According to the pet sheet described in (13) above, the light transmittance of the wing sheet region may be 38.4% or more.

[0030] (15) According to the pet sheet described in (13) or (14) above, a portion where the front sheet and the back sheet do not overlap each other in the wing sheet region when viewed from above may exist.

[0031] (16) According to any one of the above (1) to (15), the pet sheet may have a total length of non-adhesive surfaces not provided with the adhesive surface in the product length direction or the product width direction when viewed from above, which is longer than the total length of the adhesive surface.

[0032] (17) According to the pet sheet described in (16) above, the total length of the non-adhesive surface where the adhesive surface is not arranged in both the product length direction and the product width direction when viewed from above may be longer than the total length of the adhesive surface.

[0033] (18) According to any one of the schemes (1) to (17) above, the pet sheet may be such that, when viewed from above, a line dividing the area where the absorbent body is present into three equal parts in the product length direction and a line dividing the area into three equal parts in the product width direction intersect to form nine divided areas, and the adhesive surface does not exist in the divided area arranged in the center of the nine divided areas.

[0034] (19) According to any one of the schemes (1) to (18) above, the pet sheet may also include a release paper covering the adhesive surface, the release paper having a non-bonded end portion that is not bonded to the adhesive surface, and the pet sheet having a wing area where the absorbent body does not exist when viewed from above, and a portion where the non-bonded end portion and the wing area overlap when viewed from above.

[0035] (20) According to the pet sheet described in (19) above, the release paper may have a stiffness greater than that of the wing region.

[0036] (21) According to the pet sheet described in (20) above, the release paper may have a stiffness lower than a stiffness of a region where the absorbent body is present.

[0037] (22) According to any one of the schemes (1) to (21) above, the pet sheet may also include a release paper covering the adhesive surface, the release paper having a non-bonded end portion that is not bonded to the adhesive surface, and when viewed from above, the non-bonded end portion exists in both the longitudinal direction and the transverse direction of the product.

[0038] (23) According to the pet piece described in (22) above, the length of the non-joined end portion may be different in the longitudinal direction of the product and in the transverse direction of the product.

[0039] (24) According to the pet sheet described in (22) or (23) above, the release paper may have a mark indicating peeling along the tilt direction of the product.

[0040] (25) According to any one of the above (22) to (24), the release paper may be composed of a single sheet.

[0041] (26) According to any one of the above (19) to (25), the pet sheet may have a plurality of adhesive surfaces, and the pet sheet may include a plurality of release papers covering each of the plurality of adhesive surfaces.

[0042] (27) According to the pet sheet described in (26) above, the adhesive surface may be arranged at four corners of the back sheet, and the pet sheet may include a plurality of release papers covering the adhesive surfaces, respectively.

[0043] (28) According to any one of the schemes (19) to (26) above, the pet sheet may be such that the adhesive surface exists in the center of the product and on the side of the product when viewed from above, and the length of the adhesive surface in the center of the product in the product width direction is longer than the length of the adhesive surface in the product side in the product width direction.

[0044] (29) According to any one of the schemes (19) to (26) above, the pet piece may be such that the adhesive surface exists in the center of the product and on the side of the product when viewed from above, and the length of the adhesive surface in the center of the product in the product width direction is shorter than the length of the adhesive surface in the product side in the product width direction.

[0045] (30) According to any one of the above schemes (19) to (26), the pet sheet may have the same extension direction of the adhesive surface and the same extension direction of the non-bonded end portion, and the adhesive surface may be intermittently arranged in a direction orthogonal to the extension direction of the non-bonded end portion.

[0046] (31) According to the pet sheet described in (30) above, a product side portion intersecting with an extending direction of the adhesive surface may be bonded to the adhesive surface.

[0047] (32) A kit according to one embodiment of the present invention comprises: a pet sheet as described in any one of the above embodiments (1) to (31); and an animal excrement disposal sheet having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body arranged between the top sheet and the back sheet.

[0048] (33) According to the kit described in (32) above, the color of the area where the pet sheet has the absorbent body and the color of the area where the animal excrement disposal sheet has the absorbent body may be the same color when viewed from above.

[0049] (34) According to the kit described in (32) or (33) above, the maximum length L2 of the pet sheet may be larger than the maximum length L1 of the animal excrement disposal sheet in the longitudinal direction or the transverse direction when 30 cc of artificial urine is dripped onto the animal excrement disposal sheet.

[0050] (35) An animal excrement disposal sheet according to one embodiment of the present invention is used to overlap a pet sheet at an excretion site, wherein the animal excrement disposal sheet comprises a liquid-permeable surface sheet, a liquid-impermeable back sheet, and an absorbent body arranged between the surface sheet and the back sheet, and a maximum length L2 of the pet sheet is larger than a maximum length L1 of the animal excrement disposal sheet in the longitudinal direction or the transverse direction when 30 cc of artificial urine is dripped onto the animal excrement disposal sheet.

[0051] (36) The use of a pet sheet according to one embodiment of the present invention includes: attaching a pet sheet having a light transmittance of 60% or more and a side of the product of 13 cm to 17 cm to an animal excrement disposal sheet, wherein the maximum length L1 of the animal excrement disposal sheet in the longitudinal direction or the transverse direction when 30 cc of artificial urine is dripped onto the animal excrement disposal sheet is less than 17 cm.

[0052] (37) The use of an animal excrement disposal sheet according to one embodiment of the present invention is the use of an animal excrement disposal sheet, which comprises: using a pet sheet having a light transmittance of 60% or more and a side of the product of 13 cm to 17 cm to cover the urine stain on the animal excrement disposal sheet for reuse, wherein the maximum length L2 of the pet sheet is larger than the maximum length L1 in the longitudinal direction or the transverse direction of the animal excrement disposal sheet when 30 cc of artificial urine is dripped on it.

[0053] Effects of the Invention

[0054] According to the present invention, a pet sheet for overlapping use and a kit including the pet sheet can be provided, with which an owner can easily prepare a clean excrement disposal sheet and the pet is less likely to feel discomfort such as urine stains. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 This is a perspective view of a pet sheet according to one embodiment of the present invention.

[0056] Figure 2 The pet sheet of one embodiment of the present invention is Figure 1 Cross-sectional view of line II in FIG.

[0057] Figure 3 This is a plan view of a pet sheet according to one embodiment of the present invention.

[0058] Figure 4 It is a cross-sectional schematic diagram of the pet piece of the embodiment.

[0059] Figure 5 It is a cross-sectional schematic diagram showing an example of arrangement of adhesive surfaces in a pet sheet according to one embodiment of the present invention.

[0060] Figure 6 It is a plan view showing an example of arrangement of adhesive surfaces in a pet sheet according to one embodiment of the present invention.

[0061] Figure 7 It is a cross-sectional schematic diagram showing an example of arrangement of adhesive surfaces in a pet sheet according to one embodiment of the present invention.

[0062] Figure 8 It is a plan view showing an example of arrangement of adhesive surfaces in a pet sheet according to one embodiment of the present invention.

[0063] Fig. 9 It is a cross-sectional schematic diagram showing an example of arrangement of adhesive surfaces in a pet sheet according to one embodiment of the present invention.

[0064] Fig.10 It is a plan view showing an example of arrangement of adhesive surfaces in a pet sheet according to one embodiment of the present invention.

[0065] Fig.11 It is a cross-sectional schematic diagram showing an example of arrangement of adhesive surfaces in a pet sheet according to one embodiment of the present invention.

[0066] Fig.12 It is a plan view showing an example of arrangement of adhesive surfaces in a pet sheet according to one embodiment of the present invention.

[0067] Fig.13 It is a plan view showing an example of arrangement of adhesive surfaces in a pet sheet according to one embodiment of the present invention.

[0068] Fig.14 It is a plan view showing an example of arrangement of adhesive surfaces in a pet sheet according to one embodiment of the present invention.

[0069] Fig.15 This is a plan view of a pet sheet according to one embodiment of the present invention.

[0070] Fig.16 It is a cross-sectional schematic diagram of the pet piece of the embodiment.

[0071] Fig.17 This is a plan view showing an example of arrangement of release paper in a pet sheet according to one embodiment of the present invention.

[0072] Fig.18 It is a plan view showing an example of arrangement of adhesive surfaces in a pet sheet according to one embodiment of the present invention.

[0073] Fig.19 It is a plan view showing an example of arrangement of adhesive surfaces in a pet sheet according to one embodiment of the present invention.

[0074] Fig. 20It is a plan view showing an example of arrangement of adhesive surfaces in a pet sheet according to one embodiment of the present invention. DETAILED DESCRIPTION

[0075] <Pet Movie>

[0076] Hereinafter, preferred embodiments 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, "a state of observing an object (e.g., an animal excrement disposal sheet, a surface sheet, an absorbent body, etc.) placed on a horizontal surface with its excrement supply surface facing upward in an unfolded state from the vertical upper side along the thickness direction of the object" is referred to as a "top view", and further, a figure based on this top view is referred to as a "top view".

[0077] Figure 1 1 is a perspective view of a pet sheet 1 according to one embodiment of the present invention. Figure 2 It is the pet movie 1 along Figure 1 Cross-sectional view of line II in FIG.

[0078] like Figure 1 As shown, the pet sheet 1 of one embodiment of the present invention is a sheet that is rectangular (preferably square) in a plan view and has a product length direction L, a product width direction W, and a thickness direction T. In addition, when the pet sheet 1 is square in a plan view, any 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.

[0079] In addition, in the present invention, the outer shape of the pet sheet is not limited to such a rectangular shape, but can be 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 and type of the animal used for the animal excrement disposal sheet to be overlapped with the pet sheet 1. For example, when the animal used is a dog, the length of the animal excrement disposal sheet in the product length direction is typically 250 mm to 1500 mm, preferably 300 mm to 1000 mm, and more preferably 400 mm to 950 mm. The length of the animal excrement disposal sheet in the product width direction is typically 200 mm to 1200 mm, preferably 250 mm to 1000 mm, and more preferably 300 mm to 650 mm.

[0080] The pet sheet 1 is used to be overlapped with an animal excrement disposal sheet. More specifically, the pet sheet 1 is used to be overlapped with the animal excrement disposal sheet so as to cover the excrement of the animal excrement disposal sheet that has absorbed the excrement.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] In this embodiment, the pet sheet 1 is used to cover the urine stains on the animal excrement disposal sheet by overlapping the urine stains. As a result, the owner can hide the urine stains on the animal excrement disposal sheet and can easily prepare a clean excrement disposal sheet (an "overlapping sheet" in which the pet sheet 1 is overlapped on the animal excrement disposal sheet after use). On the other hand, the pet is not likely to feel discomfort such as urine stains on the animal excrement disposal sheet. Therefore, the pet correctly steps on the overlapping sheet when defecating, and does not need to avoid the part with urine stains, so it is not easy to leak outside the overlapping sheet or get its feet wet. As a result, both the owner and the pet can reduce the pressure related to excretion, and can further recognize each other's existence and build a close relationship.

[0089] like Figure 1 and Figure 2 As shown, the pet sheet 1 of this embodiment has a liquid-permeable surface sheet 2, a liquid-impermeable back sheet 4, and a liquid-absorbing absorbent 3 disposed between the surface sheet 2 and the back sheet 4, the surface sheet 2 forms a supply surface of excrement excreted from the animal in the thickness direction T (hereinafter referred to as the "first surface"), and the back sheet 4 is formed on the side opposite to the supply surface of the excrement in the thickness direction T (hereinafter referred to as the "second surface") and is the loading surface of the pet sheet 1 (that is, the surface opposite to the surface of the loading pet sheet of the animal excrement treatment sheet). The surface sheet 2 and the back sheet 4 are bonded to each other by any bonding means such as hot melt adhesives at their respective peripheral portions.

[0090] The back sheet 4 has an adhesive surface. By making the adhesive surface of the back sheet 4 contact the urine stain on the animal excrement disposal sheet, the owner can easily hide the urine stain and can reliably hide the urine stain. In addition, since the adhesive can prevent the pet sheet from shifting when the pet steps on the pet sheet, the animal is less likely to feel uncomfortable.

[0091] Examples of the adhesive constituting the adhesive surface include synthetic rubber (SIS, SBS, etc.).

[0092] Moreover, in this embodiment, the back surface sheet 4 may have a structure having a concavo-convex structure as an adhesive region.

[0093] In addition, the arrangement structure of the adhesive surface of the back surface sheet 4 will be described later.

[0094] 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.

[0095] 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.

[0096] 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.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] In this embodiment, the product thickness of the pet sheet 1 can be measured using a commercially available thickness measuring instrument such as a PEACOCK thickness measuring instrument JB 0.05mm (manufactured by Ozaki Seisakusho Co., Ltd.). Specifically, when looking down at the pet sheet 1, a line dividing the area 3a into three equal parts in the product length direction L and a line dividing the area 3a into three equal parts in the product width direction W are crossed to form nine divided areas, and the thickness of the central portion of each of the nine divided areas is measured using a thickness measuring instrument, and the average value of the thickness at the nine locations can be used as the product thickness.

[0101] Alternatively, in the pet sheet 1 of the present embodiment, the surface sheet 2, the back sheet 4, and the absorbent body 3 are configured so that the area of ​​the region where the absorbent body 3 exists when viewed from above is less than 80% of the entire surface of the pet sheet 1, preferably less than 75%, and more preferably less than 65%. Typically, it can be configured so that when the pet sheet 1 is viewed from above, the area of ​​the region 3a where the surface sheet 2, the back sheet 4, and the absorbent body 3 exist is less than 80% of the entire surface of the pet sheet 1, preferably less than 75%, and more preferably less than 65%.

[0102] If the area of ​​the region where the absorber 3 exists is within the above range, the wing region 2a without the absorber (the wing portion 2a described later) does not retain excrement, so the owner can easily grasp this region (removal portion) to remove the pet sheet.

[0103] It can also be that in the pet sheet 1 of the present embodiment, the back sheet 4 and the absorbent body 3 are configured so that the difference between the thickness of the region where the absorbent body 3 exists and the thickness of the wing sheet region where the absorbent body 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, and more preferably 1.0 mm or more and 2 mm or less. Typically, it can be configured so that when the pet sheet 1 is viewed from above, the difference between the thickness of the region 3a where the surface sheet 2, the back sheet 4 and the absorbent body 3 exist and the thickness of the wing sheet region 2a where the absorbent body 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, and more preferably 1.0 mm or more and 2 mm or less.

[0104] When the difference between the thickness of the region where the absorber 3 is present and the thickness of the wing region where the absorber 3 is not present is equal to or greater than the lower limit of the above range, the owner can easily visually recognize the detachable portion of the pet sheet.

[0105] 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.

[0106] 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.

[0107] 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.

[0108] 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.

[0109] 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.

[0110] 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.

[0111] Generally speaking, animal excrement disposal sheets often contain a super absorbent polymer (SAP) in the lower layer sheet. Since the SAP that absorbs excrement swells locally, when a pet steps on the swollen part, it feels like gel, which may make the pet feel uncomfortable.

[0112] If the WC value of the pet sheet 1 obtained by the KES compression characteristic tester is above the lower limit of the above-mentioned preferred range, when the pet steps on the overlapping sheet, it is not easy to feel the discomfort of the urine marks on the lower sheet in terms of touch, so when stepping on the sheet, it will not avoid this position, and can urinate in the correct position. As a result, the possibility of urinating beyond the sheet can be reduced. On the other hand, if the WC value is below the upper limit of the above-mentioned preferred range, the pet's paw pad is not easy to feel discomfort when stepping on the pet sheet, and it is not easy to avoid the pet sheet.

[0113] In this embodiment, the WC value obtained by the KES compression characteristic tester is measured using a commercially available compression tester such as the KES-FB3-AUTO-A compression tester (Kado Technology Co., Ltd.). Specifically, the area (area 3a) where the absorbent body 3 exists when the pet sheet 1 is viewed from above is cut into a size of 30 mm × 30 mm as a sample, and the center of the sample is gently clamped by the upper and lower discs, and the compression area (area of ​​the disc) is measured. 2 , the thickness dimension T0 of each sample under a load of 0.49hPa. Next, the sample is compressed at a pressure rate of 0.02mm / s until it becomes a load of 49.03hPa, and the thickness dimension Tm under a load of 49.03hPa is measured. Then the amount of work (N·m / m 2 )WC.

[0114] The Qmax (contact coolness coefficient) value of the pet sheet 1 of this embodiment may be 1.0 W / cm 2 Below, preferably 0.5W / cm 2 Below, more preferably 0.1W / cm 2 the following.

[0115] If the Qmax value is within the above range, the pet will not easily feel the cold touch from the excretion traces of the lower sheet of the animal excrement disposal sheet when stepping on the overlapping sheet, and the pet will not feel uncomfortable and will be less likely to avoid the overlapping sheet.

[0116] In this embodiment, the Qmax value of the pet sheet 1 can be measured using a commercially available heat flow measurement device such as a contact cold and warm tester KES-F7 (manufactured by Kado Technology Co., Ltd.). Specifically, after placing the absorbent core or non-absorbent core area on a cooling base (constant temperature table) set at 20°C and maintaining this state for a period of time, the sensor part of a hot plate (T-Box) heated to 30°C is placed in a manner that the sample and the sensor part are in relative contact, and the Qmax value is measured.

[0117] In this embodiment, the top sheet, the back sheet and the absorbent are arranged in the pet sheet 1 so that the stiffness of the region where the absorbent 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, the top sheet 2, the back sheet 4 and the region 3a where the absorbent 3 is present have a stiffness of 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 when the pet sheet 1 is viewed from above.

[0118] If the stiffness of the region where the absorbent body 3 is present is within the above range, the pet sheet itself is not easily bent when the owner picks up the pet sheet, and the pet sheet can be easily and completely placed on the animal excrement disposal sheet with one hand while maintaining its shape. In addition, if the stiffness of the region where the absorbent body 3 is present is within the above range, it becomes a moderate hardness, and the pet is not likely to feel discomfort when stepping on the pet sheet, and is not likely to avoid the pet sheet.

[0119] In addition, if the surface sheet 2, the back sheet 4 and the absorbent body 3 are arranged so that the area of ​​the region where the absorbent body 3 exists is less than 90% of the entire surface of the pet sheet 1 when viewed from above and the stiffness of the region where the absorbent body 3 exists is within the above range, when the owner picks up the pet sheet 1, the pet sheet 1 itself is not easy to bend, and it is easy to simply and completely set it with one hand while maintaining the shape of the pet sheet 1.

[0120] In the present embodiment, the stiffness of the region where the absorbent body 3 is present can be measured by the following procedure. In addition, matters not described are in accordance with "6.7.4 Gurley method" of JIS L 1913:2010 "General nonwoven fabric test methods".

[0121] (1) A No. 311 Gurley Softness Tester manufactured by Yasuda Seiki Co., Ltd. was prepared in a constant temperature and humidity chamber (temperature: 25±5°C, relative humidity: 65±5%).

[0122] (2) The sample to be measured is left to stand in the above-mentioned constant temperature and humidity chamber in an unfolded state for 24 hours.

[0123] (3) A sample with a length of L = 38 mm and a width of d = 25 mm is cut from the sample so that the length L extends in a predetermined direction (e.g., the product length direction or product width direction of the absorbent article). In addition, when the absorbent article is individually packaged, the packaging sheet is removed before measurement.

[0124] (4) The sample is arranged so that 6.3 mm of one end portion of the sample in the product length direction is held by the chuck portion and 6.3 mm of the other end portion of the sample in the product length direction is in contact with the pendulum B.

[0125] (5) The movable arm is rotated at a constant speed, and the scale (RG1) is read when the sample separates from the pendulum B (first time). Next, the front and back sides of the sample are turned upside down, and the sample is placed in a Gurley-type flexibility tester, and the scale (RG2) is read when the sample separates from the pendulum B (second time).

[0126] (6) Calculate the stiffness (mN) according to the following formula.

[0127] Stiffness(mN)

[0128] [Formula 1]

[0129]

[0130] The pet sheet 1 of this embodiment may not have fold lines.

[0131] If the pet sheet 1 has no fold line, the step of opening the pet sheet 1 can be omitted when the pet sheet 1 is placed on the animal excrement disposal sheet, and the pet sheet 1 can be easily attached to the urine stain on the animal excrement disposal sheet without wrinkles in one step.

[0132] Hereinafter, various members constituting the pet sheet 1 of the present embodiment will be described in further detail.

[0133] (Surface Sheet)

[0134] like Figure 1 and Figure 2 As shown, the surface sheet 2 is arranged on the side of the pet sheet 1 in the thickness direction T to supply the excrement of the animal, and is composed of a sheet member, which has a liquid permeability that can transfer the excrement excreted from the animal from the supply surface of the excrement to the opposite side. As a liquid permeable sheet member constituting such a surface sheet 2, as long as the sheet member is composed of white fibers and meets the above-mentioned specific necessary conditions, there is no particular restriction, for example, any non-woven fabric such as hot air non-woven fabric, spunbonded non-woven fabric, point-bonded non-woven fabric, etc. can be appropriately used. In addition, the non-woven fabric can also be hydrophilized by a surfactant.

[0135] There are no particular restrictions on the white fibers constituting the surface sheet 2 as long as the fibers are white. For example, thermoplastic resin fibers to which white pigments or white dyes are added, or thermoplastic resin fibers having a surface structure or a crystal structure capable of diffusely reflecting light can be appropriately used.

[0136] Among such white fibers, it is preferred that the white fibers constituting the surface sheet be thermoplastic resin fibers to which a white pigment is added, from the viewpoint of easily forming a surface sheet that satisfies the above-mentioned requirements.

[0137] Here, there is no particular limitation on the white pigment added to the thermoplastic resin fiber, and examples thereof include titanium oxide (titanium white), zinc oxide (zinc white), a mixture of barium sulfate and zinc sulfide, basic lead carbonate (lead white), etc. However, titanium oxide is preferably used as the white pigment in view of its high refractive index and low toxicity to organisms.

[0138] In addition, there is no particular restriction on the type of thermoplastic resin fiber, as long as it is a fiber composed of a thermoplastic resin. Examples of the thermoplastic resin include well-known resins such as polyethylene (PE), polypropylene (PP), and ethylene-vinyl acetate copolymer (EVA) and other olefin resins, polyethylene terephthalate (PET), polylactic acid (PLA) and other polyester resins, and polyamide resins such as nylon 6. The above-mentioned resins can be used alone or in combination of two or more types.

[0139] There is no particular restriction on the structure of the fibers formed from such thermoplastic resins, and examples include composite fibers such as sheath-core fibers, parallel fibers, and island-type fibers; hollow fibers; flat, Y-shaped, C-shaped, and other irregular cross-sectional fibers; three-dimensional curled fibers that are potentially curled or obviously curled; split fibers that are split by physical loads such as water flow, heat, and embossing, etc. Fibers having the above-mentioned structures can be used alone or in combination of two or more thereof.

[0140] Among such thermoplastic resin fibers, sheath-core type thermoplastic resin fibers such as polyester (core) / polyethylene (sheath) are preferably used, and sheath-core type thermoplastic resin fibers containing the above-mentioned titanium oxide only in the core are particularly preferably used.

[0141] If the above-mentioned titanium oxide is contained only in the core of a sheath-core type thermoplastic resin fiber, when the light incident on the fiber is reflected by the titanium oxide contained in the core, the reflected light is refracted at the sheath covering the outer surface of the core and emitted from the fiber. As a result, the light can be diffusely reflected more, so even if the titanium oxide content is low, a fiber with higher whiteness can be obtained.

[0142] Furthermore, if the surface sheet is composed of such a specific sheath-core type thermoplastic resin fiber (that is, a sheath-core type thermoplastic resin fiber containing titanium oxide only in the core), when manufacturing the surface sheet, the bonding of the fibers by heat fusion of the sheath is not easily hindered by titanium oxide, so the fibers can be more reliably bonded to each other, and the strength of the surface sheet can be made more excellent. As a result, since the core of the sheath-core type thermoplastic resin fiber constituting the surface sheet is not easily affected by the scratching action of the animal, etc., the effect of the above-mentioned titanium oxide can be exerted for a long time and more continuously.

[0143] The fineness of the thermoplastic resin fiber is not particularly limited, and may be, for example, 1.1 dtex to 8.8 dtex. However, from the perspective of strength, softness, liquid permeability, etc. of the nonwoven fabric, the fineness is preferably 1.5 dtex to 4.6 dtex.

[0144] Furthermore, the thermoplastic resin fibers may be subjected to a hydrophilizing treatment such as treatment with a surfactant, a hydrophilizing agent, etc. (for example, by mixing a surfactant into the fiber, coating a surfactant on the fiber surface, etc.).

[0145] In the pet sheet 1 of the present embodiment, the top sheet 2 may be composed of only white fibers, or may contain other fibers that are not white or any additives.

[0146] Examples of such other fibers include fibers composed of the same thermoplastic resin as the above-mentioned thermoplastic resin, and the content of the other fibers is preferably 75% by mass or less of all the fibers constituting the top sheet.

[0147] In addition, as an arbitrary additive, there can be mentioned, for example, a fragrance, a deodorant, an antibacterial agent, a bactericide, etc. Moreover, the above-mentioned additives may be used simultaneously in two or more kinds.

[0148] In the present embodiment, the thickness of the topsheet 2 is not particularly limited as long as the above-mentioned specific requirements are met, but is preferably 0.05 mm or more.

[0149] In addition, the thickness of the surface sheet can be measured as follows using, for example, a compression tester (manufactured by Kado Technology Co., Ltd., model: KES-FB3 AUTO-A). When measuring the thickness of the surface sheet, a measurement sample obtained by sampling the surface sheet is placed in the above-mentioned measurement device, and the pressure applied by the measurement terminal to the measurement sample is measured to be 0.5 g / cm 2 The thickness of the surface sheet is the average value of the measured values ​​when N=10.

[0150] In this embodiment, the weight per unit area of ​​the top sheet 2 is not particularly limited, but is preferably 8 g / m 2 ~30g / m 2 , more preferably 10g / m 2 ~25g / m 2 .

[0151] (Absorber)

[0152] like Figure 2 As shown in the figure, the absorbent body 3 is arranged on the side of the surface sheet 2 opposite to the excrement supply surface, 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 bonded by an arbitrary adhesive such as a hot melt adhesive, and the adhesive has a unit area weight (e.g., 0.05 g / m2) of a degree that does not hinder the penetration of excrement. 2 ~130g / m 2 ) and coating method (such as spiral, dot, strip, etc.) are arranged between the surface sheet 2 and the absorbent 3.

[0153] In addition, in this embodiment, if Figure 1 and Figure 3 As shown, the absorbent body 3 has a roughly rectangular (preferably square) shape when viewed from above and is arranged in the central area of ​​the pet sheet 1. However, the present invention is not limited to such a method. The absorbent body 3 can also have any top view shape other than a rectangle, and can also be arranged offset in any direction from the center of the pet sheet 1.

[0154] In this embodiment, if Figure 2 As shown, the absorbent body 3 includes: a hydrophilic upper sheet 31, which is located on the surface sheet side; an absorbent core 32, which is located on the back sheet side and is formed by an absorbent material for absorbing and retaining excrement; and a core wrapping sheet 33, which covers the above-mentioned upper sheet 31 and the absorbent core 32 from the back sheet side and is composed of at least one liquid-permeable sheet.

[0155] The upper sheet 31 is made of white tissue paper (for example, made of coniferous tree bleached kraft pulp as the main raw material, with a unit area weight of 8 g / m 2 ~30g / m 2 The absorbent core 32 is made of a piece of tissue paper, etc., and is configured to cover the surface of the surface sheet side of the absorbent core 32 in the absorbent body 3 to prevent the absorbent core 32 from being deformed.

[0156] In this 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 the pet can easily identify the absorbent body 3 as the target of excretion, so that the pet can excrete at the correct position with higher accuracy. In addition, the owner can more easily grasp the pet's urine volume, urine color, and usage site.

[0157] In addition, in the present embodiment, the upper sheet 31 and the absorbent core 32 are bonded by spraying water. The spraying water is a bonding means in which water is sprayed on the upper surface (that is, the surface on the side of the surface sheet 2 in the pet sheet 1) of the absorbent core 32 (specifically, the first absorbent core 321 composed of the absorbent polymer 321a) when manufacturing the absorbent body 3 and the upper sheet 31 is pasted on the upper surface. In addition, the sprayed water evaporates later, and the sprayed part of the water becomes dry, so the upper sheet 31 and the absorbent core 32 are directly bonded. If the upper sheet 31 and the absorbent core 32 are bonded by such a spraying water, there is no adhesive between the upper sheet 31 and the absorbent core 32, and the excrement 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 to the owner of the animal.

[0158] The sheet member constituting the upper sheet 31 is not particularly limited, and in addition to the above-mentioned tissue paper, any nonwoven fabric such as air-through nonwoven fabric, spunbond nonwoven fabric, etc. may be used.

[0159] (Absorbent core)

[0160] In the present embodiment, the absorbent core 32 is composed of a granular absorbent polymer.

[0161] The absorbent polymer used in the present embodiment is not particularly limited as long as it can absorb and retain liquid, and for example, any highly water-absorbent polymer such as polyacrylic acid, starch, or cellulose can be used.

[0162] The absorbent core 32 preferably has a unit area weight of 15 g / m 2 ~480g / m 2 , more preferably 55g / m 2 ~385g / m 2 , more preferably 80g / m 2 ~290g / m 2 .

[0163] In addition, in the present embodiment, the core wrap sheet 33 is made of the same cotton paper as the above-mentioned upper sheet 31 (for example, cotton paper formed with coniferous tree bleached kraft pulp as the main raw material, etc.), and is configured to cover the upper sheet 31 and the absorbent core 32 from the back sheet side in the absorbent body 3 to prevent the absorbent core 32 from deforming and the upper sheet 31 from being misaligned.

[0164] In this embodiment, the core wrap sheet is not particularly limited as long as it is liquid-permeable and can prevent the absorbent core from losing its shape, and any nonwoven fabric such as air-through nonwoven fabric, spunbond nonwoven fabric, etc. can be used in addition to the above-mentioned tissue paper.

[0165] (Back sheet)

[0166] In this embodiment, if Figure 2 As shown, the back sheet 4 is arranged to face the floor surface or ground on which the pet sheet 1 is placed in the thickness direction T of the pet sheet 1 and is made of a liquid-impermeable sheet member that prevents leakage of excrement excreted from the animal.

[0167] The liquid-impermeable sheet member constituting the back sheet 4 is not particularly limited, and for example, air-impermeable resin films such as polyethylene and polypropylene, laminates of nonwoven fabrics bonded to such resin films, and waterproof or hydrophobic nonwoven fabrics can be appropriately used.

[0168] The back sheet 4 has an adhesive surface 4a. The arrangement structure of the adhesive surface 4a of the back sheet 4 is not particularly limited. For example, the adhesive surface 4a may be arranged in a flap region (flap portion 2a) where the absorber 3 is not present in a plan view.

[0169] If the adhesive surface 4a exists on the wing portion 2a, when the owner sticks the pet sheet 1 on the animal excrement disposal sheet, it is easy to simply and completely stick it so that there is no gap between the wing portion 2a and the lower layer of the animal excrement disposal sheet, and no excrement trace will appear after sticking. In addition, it is easy to reduce the following risk: before the pet steps on the overlapping sheet, the pet will be aware of the existence of the pet sheet 1 due to the free wing portion 2a, resulting in the pet not stepping on the overlapping sheet. In addition, the risk of the pet sheet rolling up due to the foot getting caught in the wing portion is also reduced.

[0170] Figure 5 , Figure 7 and Fig. 9 It is a cross-sectional schematic diagram showing an example of arrangement of adhesive surfaces in a pet sheet according to one embodiment of the present invention. Figure 6 , Figure 8 and Fig.10 It is a plan view showing an example of arrangement of adhesive surfaces in a pet sheet according to one embodiment of the present invention.

[0171] exist Figure 5 and Figure 6 In the example shown, the adhesive surface 4a is present in a part of the wing portion 2a when viewed from above, and is only arranged in a predetermined portion of the back sheet 4. Figure 6 The adhesive surface 4a shown in (a) is only arranged at the corner of the back sheet 4, or it can be Figure 6 The adhesive surface 4a shown in (b) is arranged in a narrow strip along the end of the back sheet 4.

[0172] according to Figure 5 and Figure 6In the embodiment of the present invention, since there is no adhesive surface at least partially in the wing portion, the end of the wing portion is likely to be slightly floated from the lower layer of the animal excrement disposal sheet. Therefore, when the owner misplaces the pet sheet, it is easy to peel the pet sheet off the animal excrement disposal sheet when reattaching it, making it easy to reattach it. In addition, since there is no adhesive member in the center of the absorbent core, the excrement odor emitted from the lower layer is easily felt.

[0173] exist Figure 7 and Figure 8 In the example shown, the adhesive surface 4a is present in part or the whole of the wing portion 2a in a plan view and is arranged on the entire surface of the back sheet 4. Figure 8 The adhesive surface 4a shown in (a) is configured to cover substantially the entire surface of the back sheet 4, and may also be configured as follows. Figure 8 The adhesive surface 4a shown in (b) is arranged in a narrow strip shape so as to cover the entire surface of the back sheet 4.

[0174] according to Figure 7 and Figure 8 In the embodiment of the present invention, the adhesive is provided in the region overlapping with the absorbent core, so that it is not easy to deviate when pasting. In addition, when the pet steps on the sheet, it is not easy to deviate, and it is not easy to feel the discomfort of the sheet.

[0175] exist Fig. 9 and Fig.10 In the example shown, the adhesive surface 4a is present on the entire flap portion 2a in a plan view, and is arranged on the entire surface of the back sheet 4. In addition, the top sheet 2 is folded in so as to cover the end portion of the back sheet 4.

[0176] according to Fig. 9 and Fig.10 In the manner of the present invention, the entire surface of the area where the absorbent core is present has an adhesive, which is not easily displaced when the pet steps on it, and the side has a non-adhesive part, so that the owner can easily peel off the pet sheet. Furthermore, since the front and back sides of the non-adhesive part are composed of the surface sheet 2 (non-woven fabric), when the owner peels it off, it can achieve a soft skin touch (compared to a film).

[0177] In the present embodiment, the pet sheet 1 may not have the adhesive surface 4a in the wing region (wing portion 2a) where the absorbent body 3 is not present in a plan view.

[0178] Since there is no adhesive surface on the wing portion, the end of the wing portion is likely to be slightly raised from the lower layer of the animal excrement disposal sheet. Therefore, when the owner misplaces the pet sheet and reattaches it, it is easy to peel the pet sheet off the animal excrement disposal sheet, making it easy to reattach it.

[0179] Fig.11 It is a cross-sectional schematic diagram showing an example of arrangement of adhesive surfaces in a pet sheet according to one embodiment of the present invention. Fig.12 It is a plan view showing an example of arrangement of adhesive surfaces in a pet sheet according to one embodiment of the present invention.

[0180] exist Fig.11 and Fig.12 In the example shown, the adhesive surface 4a does not exist in the flap portion 2a when viewed from above, but exists only in the region 3a, and is only arranged in a predetermined portion of the back sheet 4. The adhesive surface 4a may be Fig.12 Although it is arranged only at the corners of the region 3a as shown, it may be arranged at other parts of the region 3a.

[0181] In the present embodiment, the back surface sheet 4 may be an air-permeable sheet.

[0182] If the back sheet 4 is a breathable sheet, when the pet approaches the overlapping sheet to urinate, the pet can sense the excretion odor emitted from the lower sheet of the animal excrement disposal sheet, and thus can easily find the appropriate excretion position accurately.

[0183] In this embodiment, the pet sheet 1 may have a wing region (wing portion 2a) where the absorber 3 is not present when viewed from above, and the light transmittance of the wing region is higher than the light transmittance of the region (region 3a) where the absorber is present when viewed from above. Specifically, the light transmittance of the wing portion is higher than the light transmittance of the region where the absorber is present when viewed from above, and is preferably 38.4% or more, and more preferably 63.9% or more.

[0184] When the light transmittance of the wing portion 2a is higher than that of the region 3a, the light transmittance of the region 3a is lowered to hide urine stains, and urine that is about to overflow from the region 3a is easily visually recognized, thereby making it easy to understand the replacement time of the pet sheet.

[0185] The flap region 2a may include a portion where the top sheet and the back sheet do not overlap when viewed from above.

[0186] If there is a portion in the flap area 2a where the top sheet and the back sheet do not overlap when viewed from above, the light transmittance of this portion is further improved, so urine that is about to overflow from the side of the product can be easily visually recognized, making it easy to understand the replacement period of the pet sheet.

[0187] In this embodiment, for example, Fig.13 As shown, 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 without the adhesive surface is longer than the total length of the adhesive surface.

[0188] If the total length of the non-adhesive surface not configured with the adhesive surface in the product length direction and / or product width direction when viewed from above is longer than the total length of the adhesive surface, it is easy to insert a hand when it is necessary to correct the position of the pet sheet and the engaging force is weak, so it is easy to peel off the pet sheet.

[0189] In this embodiment, for example, Fig.13 (d) or Fig.14 As shown, the pet sheet 1 is structured such that a line dividing the region where the absorbent body is present in a plan view into three equal parts in the product length direction and a line dividing the region into three equal parts in the product width direction intersect to form nine divided regions, and the aforementioned adhesive surface does not exist in the divided region arranged in the center of the nine divided regions.

[0190] If there is no adhesive surface in the centrally arranged split region, even if the pet sheet is attached in such a way that the central portion of the pet sheet covers the urine stain, the split region is not likely to adhere to the animal excrement disposal sheet due to urine, so the pet sheet can be easily peeled off. In addition, if there is no adhesive surface in the split region, the total area of ​​the adhesive surface can be reduced, so it is easy to prevent the adhesive surfaces from self-adhering to each other in a state where the adhesive surfaces are exposed. This effect is particularly evident when peeling off the release paper.

[0191] Fig.15 This is a plan view of a pet sheet according to one embodiment of the present invention. Fig.16 This is a schematic cross-sectional view of a pet sheet according to one embodiment of the present invention.

[0192] exist Fig.15 and Fig.16 In the example shown, a release paper 5 is provided to cover the adhesive surface 4a of the back sheet 4. The release paper 5 is not particularly limited as long as it can be peeled off from the back sheet 4 to expose the adhesive surface 4a when the pet sheet is attached.

[0193] exist Fig.15 and Fig.16 In the example 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 and the flap region 2a overlap.

[0194] If there is a portion where the non-joined end portion 5a overlaps with the flap region 2a, when the flap region 2a has a lower rigidity than the region 3a where the absorber is present, it is easy to peel off the flap region 2a and 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 is present, it is easy to visually recognize the release paper 5 from the surface sheet side and to peel off the release paper 5.

[0195] If the stiffness of the release paper 5 is smaller than that of the region 3a where the absorbent body is present, the region 3a is less likely to bend than in the opposite case, and thus it is easier to prevent the adhesive surfaces 4a from self-adhering to each other when the release paper 5 is peeled off.

[0196] exist Fig.15 and Fig.16 In the example shown, the non-joined end 5a exists in both the longitudinal direction and the transverse direction of the product when viewed from above. If the non-joined end 5a exists in both the longitudinal direction and the transverse direction of the product, the user can peel off the release paper 5 from the non-joined end 5a existing in either the longitudinal direction or the transverse direction of the product, thereby reducing the pressure when peeling off the release paper 5.

[0197] The length of the non-joined end portion 5a may be different between the length in the longitudinal direction of the product and the length in the transverse direction of the product.

[0198] If the length of the non-joined end 5a is different in the longitudinal direction of the product and the transverse direction of the product, it is easy to increase the area of ​​the non-joined end 5a and to set the adhesive surface 4a on the side of the product. Therefore, for example, it is easy to peel off the release paper 5 in the tilted direction of the product and to prevent the offset of the pasting position. If the length of the non-joined end 5a is different in the longitudinal direction of the product and the transverse direction of the product, and the release paper 5 has a mark indicating the peeling in the tilted direction of the product, the user can easily guide the release paper 5 to be peeled in the tilted direction of the product, and it is easier to prevent the offset of the pasting position.

[0199] exist Fig.15 and Fig.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 off the release paper 5 in one step. In addition, it is easy to peel off the release paper 5 in the tilt direction of the product, and it is easy to prevent the sticking position from shifting.

[0200] On the other hand, when there are a plurality of adhesive surfaces 4a, Fig.17 As shown in the example, a structure is set to provide a plurality of release papers 5 covering each adhesive surface. By providing a structure in which a plurality of release papers 5 are provided to cover each adhesive surface, the amount of waste generated when the pet sheet is attached can be reduced, and the size of the release paper becomes smaller than that of a single sheet, so the risk of the pet sheet being bent when peeled off is reduced, and it is easy to prevent the adhesive surfaces 4a from self-adhering to each other.

[0201] In the present embodiment, it is preferable to have a structure in which the adhesive surfaces 4 a are arranged at the four corners of the back sheet 4 , and a plurality of release papers 5 are provided to cover each of the adhesive surfaces 4 a .

[0202] Fig.18It is a plan view showing an example of arrangement of the adhesive surface of the pet sheet according to one embodiment of the present invention.

[0203] exist Fig.18 In the example shown, the adhesive surface 4a exists in the center and side of the product when viewed from above. Here, nine divided areas are formed by crossing the line that divides the area where the absorbent body exists in the product length direction into three equal parts and the line that divides the area in the product width direction into three equal parts when viewed from above, and the "center of the product" refers to the divided area arranged in the center of these nine divided areas. In addition, the "side of the product" refers to any one of the eight areas of the nine divided areas except the divided area arranged in the center of the nine divided areas, and these nine divided areas are formed by crossing the line that divides the area where the absorbent body exists in the product length direction into three equal parts and the line that divides the area in the product width direction into three equal parts when viewed from above.

[0204] The length of the adhesive surface 41a in the center of the product in the product width direction is longer than the length of the adhesive surface 42a in the product side in the product width direction. Therefore, when the release paper 5 is provided, the non-bonded end portions 5a are provided at the four corners of the product, so that the release paper 5 is easily pulled in the product tilting direction, and the self-adhesion of the adhesive surfaces can be prevented.

[0205] Fig.19 It is a plan view showing an example of arrangement of adhesive surfaces in a pet sheet according to one embodiment of the present invention.

[0206] exist Fig.19 In the example shown, the adhesive surface 4a exists in the center and the side of the product when viewed from above. The length of the adhesive surface 41a in the center of the product in the product width direction is shorter than the length of the adhesive surface 42a in the product side in the product width direction. Therefore, after the pet sheet is attached, the four corners of the pet sheet are joined and are not easily misaligned.

[0207] Fig. 20 It is a plan view showing an example of arrangement of adhesive surfaces in a pet sheet according to one embodiment of the present invention.

[0208] exist Fig. 20 In the example shown, the extending direction of the adhesive surface 4a is the same as the extending direction of the non-joined end portion 5a. In addition, the adhesive surface 4a is intermittently arranged in a direction orthogonal to the extending direction of the non-joined end portion 5a. Thus, when the release paper 5 is peeled off, areas not joined to the adhesive surface 4a are formed at both ends of the release paper 5, and the release paper 5 is easy to peel off, so that it is not easy to cause self-adhesion of the adhesive surface 4a.

[0209] Alternatively, the side of the product intersecting the extending direction of the adhesive surface 4a may be bonded to the adhesive surface 4a. Thus, the non-bonded end 5a extends in one direction, so that the user can easily peel off the release paper 5 in one direction.

[0210] (Method for producing pet tablets)

[0211] The pet sheet according to the embodiment can be produced, for example, as follows.

[0212] (1) Manufacturing of surface sheet

[0213] A fiber (e.g., a core-sheath composite fiber of PET (core) / PE (sheath)) containing a predetermined amount of white pigment (e.g., titanium oxide) is supplied to a carding device, and the core-sheath composite fiber is opened in the carding device to form a fiber web. The formed fiber web is further conveyed to the downstream side of the conveying direction, and is conveyed to a hot air type heating device, for example, and the fibers in the fiber web are intertwined in the heating device, thereby obtaining a hydrophilic nonwoven fabric that serves as a surface sheet.

[0214] (2) Manufacturing of absorbent

[0215] A substantially flat plate-shaped absorbent core including the absorbent material is prepared. The top sheet is attached to the upper surface of the absorbent core, and then the top sheet and the absorbent core are covered with an optional core wrap sheet to obtain an absorbent body.

[0216] (3) Manufacturing of pet films

[0217] For example, a hot-melt adhesive is used to join the second side of the above-mentioned surface sheet to one side of the upper sheet side of the absorbent body, and then a non-breathable sheet made of polyethylene, for example, is arranged as a back sheet on the other side of the absorbent core side of the absorbent body. With the absorbent body sandwiched between the surface sheet and the back sheet, the peripheral edges of the surface sheet and the back sheet are joined using a hot-melt adhesive, thereby obtaining a pet sheet of the present invention as in the above-mentioned embodiment.

[0218] The pet sheet of the present invention is not limited to the above-mentioned embodiments, the embodiments described later, etc., and can be appropriately combined, changed, etc. within the scope of the purpose and purpose of the present invention. For example, in another embodiment of the present invention, the pet sheet can also be provided with an intermediate sheet between the surface sheet and the absorber, between the absorber and the back sheet, or between the above two sides, 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 while being absorbed by the absorber, so that the absorption efficiency is excellent and it is not easy to return liquid and other high absorption performance can be exerted.

[0219] In addition, in this specification, ordinal numbers such as "1st" and "2nd" are used to distinguish items with the ordinal numbers, and do not mean the order, priority, importance, etc. of each item.

[0220] <Kit>

[0221] The kit of this embodiment includes the pet sheet and an animal excrement disposal sheet including a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet.

[0222] According to the kit of this embodiment, by bonding the back sheet, the owner can hide the urine stain by simply overlapping the sheet on the urine stain on the animal excrement disposal sheet, and the urine stain can be reliably hidden. In addition, since the light transmittance is 60% or less, it is difficult for the pet to visually recognize the urine stain when observing the overlapping sheet. Therefore, when the pet excretes, it will step on the overlapping sheet correctly and will not avoid the part where the urine stain exists, so that urine is unlikely to leak outside the overlapping sheet or wet the feet.

[0223] In the kit of this embodiment, the color of the area where the absorbent is present on the pet sheet and the color of the area where the absorbent is present on the animal excrement disposal sheet may be of the same color system when viewed from above. Here, as for "same color system", it is sufficient that the user can judge that the color of the area where the absorbent is present on the pet sheet and the color of the area where the absorbent is present on the animal excrement disposal sheet are of the same color system. Specifically, it is set to be an area where the color difference is less than 13 when measured using a colorimeter CR-300 manufactured by Konica Minolta or an equivalent colorimeter, and an area where the deviation in the 24-color colorimetric chart classified according to the Ostwald color circle is less than 1.

[0224] If the color of the area where the pet sheet has the absorbent body is the same as the color of the area where the animal excrement disposal sheet has the absorbent body, when the pet sheet is overlapped with 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 urine stains. In addition, before the pet steps on the overlapping sheet, the pet is less likely to feel discomfort to the extent that the overlapping sheet is mistaken for a new animal excrement disposal sheet, and the pet is more likely to avoid the overlapping sheet.

[0225] In the kit of this embodiment, the colors of the pet sheet and the animal excrement disposal sheet are not particularly limited, and examples thereof include blue, green, gray, white, etc. Here, blue is 13 to 19 on the Ostwald color circle, and green is 19 to 24 on the Ostwald color circle.

[0226] In the kit of this embodiment, the maximum length L2 of the pet sheet may be greater than the maximum length L1 of the animal excrement disposal sheet in the longitudinal direction or the transverse direction when 30 cc of artificial urine is dripped onto the animal excrement disposal sheet.

[0227] If L2 is larger than L1, even if the frequency of replacing the animal excrement disposal sheet is reduced, the owner can easily hide the urine stain simply by overlapping the pet sheet on the urine stain, thereby easily and reliably hiding the urine stain.

[0228] The artificial urine is not particularly limited as long as it can be used for evaluating absorbent articles, and may be, for example, an aqueous solution consisting of 0.780 mass % sodium chloride, 0.022 mass % calcium chloride, 0.038 mass % magnesium sulfate, 0.002 mass % Blue One, and ion-exchanged water.

[0229] <Animal excrement disposal sheets>

[0230] The animal excrement disposal sheet of this embodiment is used by overlapping the pet sheet at the excretion site.

[0231] The animal excrement disposal sheet of this embodiment includes a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body arranged between the top sheet and the back sheet. The maximum length L2 of the pet sheet is larger than the maximum length L1 of the animal excrement disposal sheet in the longitudinal direction or the transverse direction when 30 cc of artificial urine is dripped onto the animal excrement disposal sheet.

[0232] If L2 is larger than L1, even if the frequency of replacing the animal excrement disposal sheet is reduced, the owner can hide the urine stain simply by overlapping the pet sheet on the urine stain.

[0233] Example

[0234] Hereinafter, the present invention will be described in further detail by way of examples, but the present invention is not limited to these examples.

[0235] (Manufacture of pet films)

[0236] The top sheet, the absorbent body, and the back sheet were bonded together by a known method to obtain the pet sheet used in each test example.

[0237] (Test Example 1: Evaluation of light transmittance)

[0238] The haze meter NDH7000SPII (Nippon Denshoku Industries Co., Ltd.) was calibrated according to the standard, and the light transmittance (%) was measured by setting each sample piece (30 mm×30 mm) shown in Table 1. The results are shown in Table 1.

[0239] In addition, each sample was visually observed, and urine stain visibility was evaluated according to the following criteria.

[0240] ○: Urine marks cannot be visually recognized.

[0241] △: Urine traces can be slightly visually recognized.

[0242] ×: Urine marks can be visually recognized.

[0243] Then, each sample was attached to an animal excrement disposal sheet to obtain a stacking sheet. The excretion behavior of dogs was observed using the stacking sheet obtained, and visual discomfort was evaluated according to the following criteria. The results are shown in Table 1.

[0244] ○: The dog stepped on the overlapping sheet and defecated.

[0245] △: The dog avoided the overlapping sheets and defecated in other parts of the pet sheet.

[0246] ×: The dog avoided overlapping the tablets and defecated outside the pet tablets.

[0247] [Table 1]

[0248]

[0249] In Table 1, each abbreviation has the following meaning.

[0250] Tt: Total light transmittance (%): The transmittance including all parallel components (PT) and diffuse components (Dif) of the light passing through the test piece.

[0251] (1): A sample having a top sheet, an absorbent body, and a back sheet (the same also applies to the following tables).

[0252] T / S: Sample having only a surface sheet (the same also applies to the following tables).

[0253] B / S: a sample having only a back surface sheet (the same also applies to the following tables).

[0254] T / S, B / S: samples consisting of only a top sheet and a back sheet (the same also applies to the following tables).

[0255] (Test Example 2: Evaluation of Product Thickness)

[0256] When looking down at each sample shown in Table 2, the thickness of the central portion of each of the nine divided regions formed by the intersection of the line dividing the region 3a into three equal parts in the product length direction L and the line dividing the region 3a into three equal parts in the product width direction W was measured using a PEACOCK thickness gauge JB 0.05 mm (manufactured by Ozaki Seisakusho Co., Ltd.), and the average value of the thickness at the nine locations was taken as the product thickness. The results are shown in Table 2.

[0257] In addition, urine stain visibility was evaluated in the same manner as in Test Example 1. Table 2 shows the results.

[0258] In addition, visual discomfort was evaluated in the same manner as in Test Example 1. Table 2 shows the results.

[0259] [Table 2]

[0260]

[0261] (Test Example 3: Evaluation of the Area Ratio of the Absorber)

[0262] The area ratio (%) of the region where the absorber exists relative to the entire surface of each sample when each sample is viewed from above was calculated based on the size of each sample and the size of the absorber.

[0263] Furthermore, each sample was adhered to the animal excrement disposal sheet once and then re-adhered to confirm the positional displacement, and the ease of gripping of the wing portion was evaluated according to the following criteria.

[0264] ○: No positional displacement occurred when the sample was reattached.

[0265] △: There was a slight misalignment when the sample was reattached.

[0266] ×: Misalignment occurred when the sample was re-attached.

[0267] [Table 3]

[0268]

[0269] (Test Example 4: Evaluation of the difference between the thickness of the region where the absorber exists and the thickness of the region where the absorber does not exist)

[0270] The difference between the thickness of the region where the absorber exists and the thickness of the region where the absorber does not exist was evaluated for each sample shown in Table 4. The thickness of the region where the absorber exists was measured in the same manner as in Test Example 2. The thickness of the region where the absorber does not exist (wing portion) was measured in the same manner as in Test Example 2 except that the thickness was measured at an arbitrary position of the wing portion. The results are shown in Table 4.

[0271] Then, each sample was visually observed, and the visibility of the wing portion was evaluated according to the following criteria.

[0272] ○: The wing portion can be visually recognized.

[0273] ×: The wing portion cannot be visually recognized.

[0274] In addition, about each sample, visual discomfort was evaluated in the same manner as in Test Example 2. Table 4 shows the results.

[0275] [Table 4]

[0276]

[0277] (Test Example 5: Evaluation of product size)

[0278] The product dimensions were measured for each sample shown in Table 5. Table 5 shows the results.

[0279] In addition, the ease of attachment and removal of each sample to the animal excrement disposal sheet was evaluated according to the following criteria. The results are shown in Table 5.

[0280] ○: The animal excrement disposal sheet can be smoothly attached to and detached from the animal excrement disposal sheet.

[0281] △: It is slightly more difficult to attach and detach the animal excrement disposal sheet.

[0282] ×: It is difficult to smoothly attach to and detach from the animal excrement disposal sheet.

[0283] [Table 5]

[0284]

[0285] (Test Example 6: Evaluation using a KES compression characteristics tester)

[0286] The center of each sample (30 mm × 30 mm) shown in Table 6 was gently sandwiched between upper and lower disks, and the compression area (area of ​​the disk) was measured. 2 , the thickness dimension T0 of each sample under a load of 0.49 hPa. Next, the sample was compressed at a pressure rate of 0.02 mm / s 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 amount of work (N·m / m 2 ) is denoted as WC, the amount of work required to restore from the thickness dimension Tm to the thickness dimension T0 is denoted as WC2, and the compression recovery rate RC (%) is calculated based on the following calculation formula. The results are shown in Table 6.

[0287] RC(%)=WC2 / WC×100

[0288] In addition, each sample was attached to a urine stain on an animal excrement disposal sheet, and each sample was pressed with a finger to evaluate the urine touch according to the following criteria. The results are shown in Table 6.

[0289] ○: There is no feeling of urine.

[0290] △: Some urine is felt.

[0291] ×: Feel the touch of urine.

[0292] Each sample was attached to an animal excrement disposal sheet to obtain a stacking sheet. The stacking sheet 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.

[0293] ○: The dog stepped on the overlapping sheet and defecated.

[0294] △: The dog defecated by stepping on the overlapping sheet, but the dog was observed to change its posture.

[0295] ×: After the dog stepped on the overlapping sheet, it avoided the above-mentioned components and defecated in other parts of the pet sheet.

[0296] [Table 6]

[0297]

[0298] (Test Example 7: Evaluation of Qmax value)

[0299] For each sample of the test example, the absorbent core or non-absorbent core region was placed on a cooling base (constant temperature stage) set at 20°C and kept in this state for a period of time, and then the sensor portion of the hot plate heated to 30°C was placed in such a manner that the sample and the sensor portion were in contact with each other, and the Qmax value was measured. The results are shown in Table 7. In Table 7, "tissue paper" is a sample having only a core wrap layer.

[0300] In addition, each sample was attached to a urine stain on an animal excrement disposal sheet, and each sample was touched with a finger, and the cold feeling to touch was evaluated according to the following criteria.

[0301] ○: No cold feeling.

[0302] △: I feel a little cold.

[0303] ×: Feeling cold.

[0304] [Table 7]

[0305]

[0306] (Test Example 8: Evaluation of rigidity of region where absorber exists)

[0307] For each sample shown in Table 8, the stiffness (mN) of the region where the absorbent body 3 was present was measured according to the above-mentioned procedure.

[0308] In addition, the urine feel of each sample was evaluated in the same manner as in Test Example 6. The results are shown in Table 8.

[0309] In addition, about each sample, the discomfort in tactile sense was evaluated in the same manner as in Test Example 6. Table 8 shows the results.

[0310] [Table 8]

[0311]

[0312] Description of Reference Numerals

[0313] 1. Pet sheet; 2. Surface sheet; 2a. Wing part; 3. Absorbent body; 31. Upper sheet; 32. Absorbent core; 33. Core wrap sheet; 3a. Area where surface sheet, back sheet and absorbent body are present; 4. Back sheet; 4a. Adhesive surface; 5. Release paper; 5a. Non-joined end.

Claims

1. A pet sheet for overlapping with an animal excrement disposal sheet, wherein: The pet sheet comprises a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top 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. The pet sheet has a product length of less than 20 cm and a product width of less than 20 cm. The top sheet, the back sheet, and the absorber are arranged so that the area of ​​a region where the absorber is present is 80% or less of the entire surface of the pet sheet in a plan view.

2. The pet piece according to claim 1, wherein: The surface sheet, the back surface sheet, and the absorber are arranged so as to have a light transmittance of 30% or less.

3. The pet piece according to claim 1, wherein: The pet sheet has a wing area where the absorbent body is not present when viewed from above. The light transmittance of the wing region is higher than the light transmittance of the region where the absorber is present when viewed from above. In the flap region, there is a portion where the top sheet and the back sheet do not overlap when viewed from above.

4. A kit, wherein: The kit includes: The pet piece according to any one of claims 1 to 3; and An animal excrement disposal sheet comprises a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet.

5. A use of a pet tablet, wherein: The use of the pet sheet includes: sticking the pet sheet with a light transmittance of less than 60% and a side of 13 cm to 17 cm to an animal excrement disposal sheet, The pet sheet comprises a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet, wherein the back sheet has an adhesive surface. The maximum length L1 of the animal excrement disposal sheet in the longitudinal direction or the transverse direction when 30 cc of artificial urine is dripped onto the animal excrement disposal sheet is smaller than 17 cm.

6. Use of an animal excrement disposal sheet, wherein: The use of the animal excrement disposal sheet comprises: using a pet sheet having a light transmittance of 60% or less and a side of the product of 13 cm to 17 cm to cover the urine stain on the animal excrement disposal sheet and reuse it, and the maximum length L2 of the pet sheet is larger than the maximum length L1 in the longitudinal direction or the transverse direction of the animal excrement disposal sheet when 30 cc of artificial urine is dripped, The pet sheet includes a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet, wherein the back sheet has an adhesive surface.

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