cat diapers

Abstract

The present invention provides a cat diaper capable of suppressing misalignment when worn. The cat diaper comprises a main body (2) having an absorbent core (30), a transverse direction (W) arranged along the circumference of the cat's body, a longitudinal direction (Z) perpendicular to the transverse direction and extending from the ventral side to the dorsal side of the cat, and a fastening tape (90) extending outwardly in the transverse direction from the main body and joining the ventral region (S1) and the dorsal region (S2). The absorbent core has a constricted portion that narrows inward in the transverse direction. The ventral end edge at the inner edge of the transverse direction of the constricted portion is located on the dorsal side rather than the center of the longitudinal direction of the absorbent core.

Description

Technology Field

[0001] The present invention relates to a cat diaper fitted to a cat. Background Technology

[0002] Patent Document 1 discloses a diaper for pets. The pet diaper of Patent Document 1 has an abdominal contact portion that is in contact with the ventral side of the pet, a back contact portion that is in contact with the dorsal side of the pet, a tail hole portion for inserting and passing a tail through the back contact portion, and a fastener tape installed on the abdominal contact portion. When attaching the pet diaper of Patent Document 1, the tail is passed through the tail hole portion, the abdominal contact portion is in contact with the ventral side of the pet, and the back contact portion is in contact with the dorsal side, and the fastener tape is secured to the back contact portion (see FIG. 4 of Patent Document 1). Prior art literature

[0003] Japanese Publication No. 2017-131160 The problem to be solved

[0004] The pet diaper of Patent Document 1 is configured to be worn by both dogs and cats. Through a thorough investigation by the applicant, it was found that the normal physical movements of cats and dogs differ significantly. More specifically, it was found that dogs have many movements in a planar direction, such as running on the ground, while cats have many movements in a vertical direction, such as jumping or leaping, compared to dogs. When attempting to move the body in a vertical direction, the skin around the abdomen, buttocks, and legs tends to stretch out in one go while the hind legs are bent, or stretch out while the belly is indented and the back is rounded along with the flexion and extension of the legs. Consequently, there was a problem where the diaper would shift or come off as time passed while the cat was wearing it.

[0005] The present invention has been made in consideration of the above problem and aims to provide a cat diaper capable of suppressing misalignment when worn.

[0006] A cat diaper according to one embodiment comprises a transverse direction arranged along the circumference of the cat's torso, a longitudinal direction perpendicular to the transverse direction and extending from the ventral side to the dorsal side of the cat, a main body portion having an absorbent core and extending across a ventral area, a groin area, and a dorsal area, and a fastening tape extending outwardly in the transverse direction from the main body portion and joining the ventral area and the dorsal area. The absorbent core has a constriction portion that tapers inward in the transverse direction. The ventral end edge at the inner edge of the transverse direction of the constriction portion is located dorsally relative to the center of the longitudinal direction of the absorbent core.

[0007] A cat diaper according to another embodiment comprises a transverse direction arranged along the circumference of the cat's torso, a longitudinal direction perpendicular to the transverse direction and extending from the ventral side to the dorsal side of the cat, a main body portion having an absorbent core and extending across the ventral area, the under-groin area, and the dorsal area, a leg circumference opening arranged around the cat's legs, and a fastening tape extending outwardly in the transverse direction from the main body portion and joining the ventral area and the dorsal area. The leg circumference opening has a ventral side extending inwardly in the transverse direction from the outer edge of the main body portion in the ventral area, a dorsal side extending inwardly in the transverse direction from the outer edge of the main body portion in the dorsal area, and a longitudinal side extending in the longitudinal direction connecting the ventral side and the dorsal side. If the length of the longitudinal direction of the ventral side is denoted as a and the length of the transverse direction of the ventral side is denoted as b, then a < b is satisfied.

[0008] A cat diaper according to another embodiment comprises a transverse direction arranged along the circumference of the cat's torso, a longitudinal direction perpendicular to the transverse direction and extending from the ventral side to the dorsal side of the cat, a main body portion having an absorbent core and extending across the ventral area, the under-groin area, and the dorsal area, a leg circumference opening arranged around the cat's legs, and a fastening tape extending outwardly in the transverse direction from the main body portion and joining the ventral area and the dorsal area. The leg circumference opening has a ventral side extending inward in the transverse direction from the outer edge of the main body portion in the ventral area, a dorsal side extending inward in the transverse direction from the outer edge of the main body portion in the dorsal area, and a longitudinal side portion connecting the ventral side and the dorsal side and extending in the longitudinal direction. If the vertical distance between the fastening tape and the vertical side is denoted as c, and the horizontal length of the vertical side is denoted as b, then c < b is satisfied. Brief explanation of the drawing

[0009] FIG. 1 is a plan view of a cat diaper according to an embodiment, viewed from the skin side. Figure 2 is a schematic cross-sectional view of a cat diaper along the line AA shown in Figure 1. FIG. 3 is a schematic diagram showing the wearing state of a cat diaper according to an embodiment. Figure 4 is a schematic diagram showing the body shapes of cats and dogs. FIG. 5 is an enlarged plan view of an absorption core according to an embodiment. FIG. 6 is a plan view of a cat diaper according to an embodiment, seen from the skin side. Figure 7 is an enlarged plan view of an absorption core regarding a deformation example. Specific details for implementing the invention

[0010] (1) Overview of the embodiment

[0011] By the description in this specification and the accompanying drawings, at least the following matters become clear.

[0012] A cat diaper according to one embodiment comprises a transverse direction arranged along the circumference of the cat's torso, a longitudinal direction perpendicular to the transverse direction and extending from the ventral side to the dorsal side of the cat, a main body portion having an absorbent core and extending across the ventral area, the area below the crotch, and the dorsal area, and a fastening tape extending outwardly in the transverse direction from the main body portion and joining the ventral area and the dorsal area. The absorbent core has a constriction portion that tapers inward in the transverse direction. The ventral end edge at the inner edge of the transverse direction of the constriction portion is located dorsally relative to the center of the longitudinal direction of the absorbent core. As a result of observing the cat's wearing condition, the applicant found that the longitudinal length of the absorbent core extending ventrally from the position where the leg width is narrowest corresponds to the longitudinal length of the absorbent core extending ventrally relative to the ventral end edge. Because the vertical length of the absorbent core extending ventrally beyond the narrowest point of the legs is sufficiently secured, the absorbent core can cover the body even when the legs are repeatedly moved back and forth due to vertical movement. Additionally, because the vertical length of the absorbent core extending ventrally beyond the narrowest point of the legs is sufficiently secured, the absorbent core can continue to follow the skin even when the abdominal skin stretches significantly, making it easy to maintain the diaper in place.

[0013] According to a preferred embodiment, the constriction has a ventral edge located on the ventral side, a dorsal edge located on the dorsal side, and a lateral edge connecting the inner edge, and a virtual line passing through the transverse center of the constriction and extending in the longitudinal direction has a first intersection point where it intersects the ventral edge extending from the ventral edge to the inner edge, and a second intersection point where it intersects the dorsal edge extending from the dorsal edge to the inner edge, and the distance between the virtual line and the first intersection point where it intersects the dorsal edge extending from the dorsal edge to the inner edge is preferably less than 40% of the longitudinal length of the absorbent core. When a cat moves in a vertical direction, the diaper is prone to shifting in the longitudinal direction due to impacts such as landing or longitudinal stretching of the skin. At this time, the amount of longitudinal shifting around the hind leg circumference is easily suppressed to 40% or less of the absorbent core. Even if a force is applied that causes the diaper to shift vertically due to impact or other factors, the diaper can still cover the body.

[0014] According to a preferred embodiment, the distance between the ventral outer edge of the absorbent core located on the ventral side and the first intersection point may be longer than the distance between the dorsal outer edge of the absorbent core located on the dorsal side and the second intersection point. The first intersection point and the second intersection point are located at the transverse center of the constriction and are easily accessible to the transverse center of the hind leg. The longitudinal length of the absorbent core extending ventrally from the transverse center of the constriction is longer than the longitudinal length of the absorbent core extending dorsally from the transverse center of the constriction. Since the longitudinal length of the absorbent core extending ventrally from the hind leg can be sufficiently secured, the absorbent core can be continuously followed even when the elasticity of the abdominal skin increases, making it easy to maintain the state of the diaper being worn.

[0015] According to a preferred embodiment, the absorbent core has a ventral region located ventral to the longitudinal center of the absorbent core and a dorsal region located dorsally to the longitudinal center of the absorbent core, and the area of ​​the ventral region may be larger than the area of ​​the dorsal region. The urinary opening of a female dog is easily accessible to the dorsal region, and the urinary opening of a male dog is easily accessible to the ventral region. On the other hand, the urinary opening of a cat is easily accessible to the dorsal region, whether male or female. In a cat diaper, by increasing the area of ​​the ventral region, it is possible to retain body fluids that diffuse from the dorsal region to the ventral region. Also, generally, cats have a low water intake, so they are prone to urinary tract diseases. When they contract a urinary tract disease, symptoms of polydipsia and polyuria are likely to occur. In the case of polyuria, the tendency for diffusion to spread to the ventral region of the absorbent core becomes more pronounced. By increasing the area of ​​the ventral region, it is possible to retain fluid that diffuses from the dorsal region to the ventral region even in cases of polyuria.

[0016] According to a preferred embodiment, the absorbent core has a ventral region located ventral to the longitudinal center of the absorbent core and a dorsal region located dorsally to the longitudinal center of the absorbent core, and the transverse length of the absorbent core at the inner edge of the constriction is preferably 50% or less of the maximum transverse length of the absorbent core at the dorsal region. The difference between the maximum transverse length at the dorsal region of the absorbent core and the width of the absorbent core at the inner edge of the constriction can be made large. The urinary opening of a cat is easily reached in the dorsal region, whether male or female. In a cat diaper, the absorbent capacity of the dorsal region can be secured by increasing the maximum transverse length of the absorbent core in the dorsal region.

[0017] According to a preferred embodiment, a tail hole is formed in the main body portion, and the maximum length in the transverse direction of the tail hole may be greater than or equal to the transverse length of the absorbent core at the inner edge of the constriction portion. When worn, by inserting a tail into the tail hole, the tail hole can be stretched in the transverse direction through the tail, and a force that stretches in the transverse direction is applied to the absorbent core. By widening the absorbent core in the transverse direction, the twisting of the absorbent core can be reduced, making it easier to secure the transverse length of the absorbent core when worn. Since the maximum length in the transverse direction of the tail is greater than or equal to the transverse length of the absorbent core at the constriction portion, when a force that widens the absorbent core is applied across the entire transverse direction of the tail hole, the entire transverse direction of the absorbent core at the constriction portion can be widened.

[0018] According to a preferred embodiment, the absorbent core has a core wrap covering the skin-facing surface and the non-skin-facing surface, and an overlapping portion may be installed in the area overlapping with the constriction portion where the core wraps overlap. According to this embodiment, the rigidity near the constriction portion can be increased in the overlapping portion. The twisting of the constriction portion of the absorbent core can be suppressed, thereby maintaining a good fit.

[0019] According to a preferred embodiment, there is an upright leak-proof gather located on the skin side rather than the absorbent core, wherein the leak-proof gather has an upright portion capable of standing and a fixed portion located laterally outward from the upright portion and serving as the upright point of the upright portion, and the inner edge of the fixed portion may be located laterally outward from the inner edge of the constriction portion. In the leak-proof gather, the upright portion may rise starting from the fixed portion, and simultaneously, due to the difference in rigidity of the absorbent core, the entire upright portion and fixed portion rise starting from the outer edge of the absorbent core. In this case, since the inner edge of the fixed portion is located laterally outward from the inner edge of the constriction portion, which serves as the outer edge of the absorbent core in the area where the constriction portion is installed, the entire upright portion and fixed portion rise starting from the outer edge of the constriction portion. In the area where the constriction is installed, the transverse length of the absorption core is relatively short, and there is a risk that body fluid may be guided to the transverse outer side of the absorption core, but the height of the erection part can be secured, thereby suppressing leakage.

[0020] According to a preferred embodiment, the longitudinal length of the inner edge of the constriction portion is preferably 30% or less of the longitudinal length of the absorbent core. According to this embodiment, the amount of longitudinal misalignment is 30% or less of the absorbent core while fitting at the position where the leg width is narrowest. Even if a force causing the diaper to misalign in the longitudinal direction is applied due to impact or the like, the diaper can still cover the body.

[0021] A cat diaper according to one embodiment comprises a transverse direction arranged along the circumference of the cat's torso, a longitudinal direction perpendicular to the transverse direction and extending from the ventral side to the dorsal side of the pet, a main body portion having an absorbent core and extending across the ventral area, the under-groin area, and the dorsal area, a leg circumference opening arranged around the cat's legs, and a fastening tape extending outwardly in the transverse direction from the main body portion and joining the ventral area and the dorsal area. The leg circumference opening has a ventral side extending inward in the transverse direction from the outer edge of the main body portion in the ventral area, a dorsal side extending inward in the transverse direction from the outer edge of the main body portion in the dorsal area, and a longitudinal side extending in the longitudinal direction connecting the ventral side and the dorsal side. If the length of the longitudinal direction of the ventral side is denoted as a and the length of the transverse direction of the ventral side is denoted as b, then a < b is satisfied. The leg opening is positioned to surround the hind leg of a cat, and the ventral side of the leg opening touches the ventral surface of the hind leg. Since the transverse length (b) of the ventral side is longer than the longitudinal length (a) of the ventral side, when the leg opening fits around the leg, an area extending in the transverse direction can be secured within a short range of the longitudinal length. Because it fits locally in the transverse direction within a short range of the longitudinal direction, it is easy to fit tightly around the leg. By fitting tightly around the leg, it is easy to fit tightly around the leg without conscious effort for cats that are difficult to fit tightly around the leg due to being relatively fleshy or having bent joints, thereby suppressing the problem of slipping off during the wearing process.

[0022] A cat diaper according to another embodiment has a transverse direction arranged along the circumference of the cat's torso, a longitudinal direction perpendicular to the transverse direction and extending from the ventral side to the dorsal side of the pet, a main body portion having an absorbent core and extending across the ventral area, the under-groin area, and the dorsal area, a leg circumference opening arranged around the cat's legs, and a fastening tape extending outwardly in the transverse direction from the main body portion and joining the ventral area and the dorsal area. The leg circumference opening has a ventral side extending inward in the transverse direction from the outer edge of the main body portion in the ventral area, a dorsal side extending inward in the transverse direction from the outer edge of the main body portion in the dorsal area, and a longitudinal side extending in the longitudinal direction connecting the ventral side and the dorsal side. If the vertical distance between the fastening tape and the vertical side is denoted as c, and the horizontal length of the ventral side is denoted as b, then c < b is satisfied. When attaching the diaper to a cat, the fastening tape is stretched in the horizontal direction and bonded to the target area, etc. At this time, the ventral side of the leg circumference opening is stretched in the horizontal direction, and the line extending from between the two hind legs, through the hind legs, to the back is formed by the line connecting the vertical side and the fastening tape. Since the distance (c) is shorter than the horizontal length (b) of the ventral side, when the leg circumference opening fits the leg circumference, an area extending in the horizontal direction can be secured within a short vertical length range. Because it fits locally in the horizontal direction within a short vertical range, it is easy to achieve a tight fit around the leg circumference. By achieving a tight fit around the leg circumference, the problem of it slipping off during the wearing process can be suppressed.

[0023] According to a preferred embodiment, if the longitudinal length of the main body is d, the ratio of a to d should be 10% or less. According to this embodiment, since the ratio of the longitudinal length (a) of the ventral side to the entire main body of the diaper is low, longitudinal misalignment with respect to the leg circumference can be suppressed. Problems such as the diaper slipping off when worn or hindering the forward and backward movement of the legs due to an increased amount of longitudinal misalignment can be suppressed.

[0024] According to a preferred embodiment, the fastening tape is positioned in the ventral area, and at least a portion of the target part to which the fastening tape is fixedly attached is installed in the dorsal area. If the longitudinal distance between the ventral side and the target part is denoted as e and the longitudinal length of the main body part is denoted as d, the ratio of e to d should be 60% or more. The longitudinal distance (e) between the ventral side and the target part is the length of the area that covers the body from the ventral side to the dorsal side while the fastening tape is fixedly attached to the target part, and which deforms in accordance with the movement of the body or the stretching and stretching of the skin. Since the ratio of the longitudinal distance (e) between the ventral side and the target part to the entire main body part of the diaper is high, a wide area that deforms according to the movement of the cat, etc., can be secured.

[0025] According to a preferred embodiment, the main body part is provided with a tail hole having a hole main body part through which a cat's tail can be inserted and passed, the fastening tape is disposed in the ventral area, and at least a part of a target part to which the fastening tape is fixedly attached is provided in the dorsal area, and if the longitudinal distance between the dorsal end edge of the tail hole and the target part is f and the longitudinal length of the main body part is d, the ratio of f to d should be 20% or more. Here, in a configuration having a slit part, the distance (f) is the distance between the area formed by combining the slit part and the hole main body part and the target part. The longitudinal distance (f) between the dorsal end edge of the tail hole and the target part is the length of the area covering the area extending from the tail hole to the dorsal side while the fastening tape is fixedly attached to the target part, and is the length of the area that deforms in accordance with the movement of the body or the stretching and contraction of the skin on the dorsal side. Since the ratio of the length of f to the entire main body is high, a wide area of ​​deformation can be secured on the dorsal side according to the cat's movements, and the diaper can follow the movement of the dorsal side, thereby preventing the diaper from unintentionally slipping out.

[0026] According to a preferred embodiment, the main body portion is provided with a tail hole having a hole main body portion through which a cat's tail can be inserted and passed, the fastening tape is disposed in the ventral area, and at least a portion of a target portion to which the fastening tape is fixedly attached is provided in the dorsal area, and if the longitudinal distance between the ventral side and the target portion is e and the longitudinal maximum length of the hole main body portion is g, the ratio of g to e is preferably 3.50% or less. As a result of the applicant's diligent research, dogs tend to move their tails relatively often in the left-right direction, while cats tend to move their tails relatively often in the up-down direction. Therefore, when a cat is wearing a diaper, the hole main body portion is stretched in the longitudinal direction, and the diaper is prone to becoming misaligned in the longitudinal direction. At this time, since the ratio of the longitudinal length of the hole main body portion to the movable area is low, the amount of the diaper becoming misaligned in the longitudinal direction through the hole main body portion can be suppressed.

[0027] According to a preferred embodiment, the main body portion has a tail hole formed therein having a hole portion through which a cat's tail can be inserted and passed, and a slit portion for enlarging the dimensions of the tail hole, and the fastening tape is disposed in the ventral area, and a target portion to which the fastening tape is fixedly attached is installed in the dorsal area, and if the vertical distance between the ventral side and the target portion is e and the maximum vertical length of the tail hole is h, the ratio of h to e is preferably 5.5% or less. According to the present embodiment, even when the dimensions of the tail hole are enlarged by the slit portion, the ratio of the vertical length of the tail hole to the movable area is kept low, thereby suppressing the amount of the diaper slipping in the vertical direction through the tail hole.

[0028] According to a preferred embodiment, the main body is provided with a tail hole having a hole main body through which a cat's tail can be inserted and passed, and the ratio of the maximum length in the transverse direction of the hole main body to the maximum length in the transverse direction of the absorbent core is preferably 35% or more. When worn, by inserting the tail into the tail hole, the tail hole can be stretched in the transverse direction through the tail, and the absorbent core can be stretched in the transverse direction. The twisting of the absorbent core can be expanded, making it easier to secure the transverse length of the absorbent core when worn. Because the ratio of the maximum length in the transverse direction of the hole main body to the maximum length in the transverse direction of the absorbent core is high, the force that expands the absorbent core through the hole main body is more easily transmitted to the entire transverse area of ​​the absorbent core. Since the fit is less likely to deteriorate due to deformation of the absorbent core, leakage of bodily fluids can be suppressed, and at the same time, a state in which the cat can easily move its legs when worn can be maintained.

[0029] According to a preferred embodiment, the tail hole may be positioned dorsally to the outer edge located dorsally to the absorbing core. Since the tail hole is installed in an area that does not overlap with the absorbing core, the force tensileally pulling the tail hole through the tail is less likely to be affected by the rigidity of the absorbing core. Therefore, it is easier to obtain the effect of reducing the twisting of the absorbing core through the tail.

[0030] According to a preferred embodiment, the absorbent core has a constriction that is recessed inward in the transverse direction, and at least a portion of the ventral edge extending from the inner transverse edge of the constriction toward the ventral side extends inward in the transverse direction from the ventral side toward the inner edge, and the longitudinal side of the leg circumference opening may extend outward in the transverse direction from the ventral side toward the dorsal side. By shortening the transverse length of the absorbent core at the inner edge of the constriction, it is easy to fit the absorbent core to the part of the cat's legs that is short in the transverse direction. In addition, since the transverse length from the inner edge of the constriction toward the ventral side is extended, the area of ​​the absorbent core on the ventral side can be secured while shortening the transverse length of the absorbent core at the inner edge of the constriction. Additionally, the longitudinal side of the leg opening extends inward in the transverse direction from the back towards the ventral side, and slopes opposite to the outer edge of the absorbent core. Therefore, in the part where the transverse length of the absorbent core is shortened, the transverse length of the leg opening can be extended, allowing the entire diaper to continuously cover the torso, thereby preventing leakage or misalignment.

[0031] (2) Composition of cat diapers

[0032] Hereinafter, a cat diaper according to an embodiment will be described with reference to the drawings. In addition, in the description of the drawings below, identical or similar parts are denoted by identical or similar reference numerals. However, it should be noted that the drawings are schematic and the ratios of each dimension may differ from reality. Therefore, specific dimensions, etc., must be determined by taking into account the following description. Furthermore, parts with different dimensional relationships or ratios may be included between the drawings.

[0033] FIG. 1 is a plan view of a cat diaper according to an embodiment, viewed from the surface side (T1). FIG. 2 is a schematic cross-sectional view of a cat diaper along the line AA shown in FIG. 1. FIG. 2 shows the cat diaper (1) stretched to a state where no wrinkles are formed. Also, in the cross-sectional view shown in FIG. 2, for convenience of explanation, each member is shown spaced apart in the thickness direction (T), but in the actual product, they are in contact in the thickness direction (T). FIG. 3 is a schematic drawing showing the wearing state of the cat diaper.

[0034] A cat diaper (1) has a transverse direction (W) arranged along the circumference of the cat's body, a longitudinal direction (Z) perpendicular to the transverse direction (W), and a thickness direction (T) perpendicular to both the transverse direction (W) and the longitudinal direction (Z). The longitudinal direction (Z) extends in a direction connecting the cat's ventral side to the back side. The thickness direction (T) extends to a surface side (T1) that is in contact with the cat when worn, and to a back side (T2) that is directed outward when worn. As shown in FIG. 3, the cat diaper according to the embodiment is fitted to cover the cat from the ventral side, past the crotch, to the back side.

[0035] A cat diaper (1) may have a main body (2) and a fastening tape (90). It may have a main body first end (61) which is one end in the horizontal direction (W), a main body second end (62) which is the other end in the horizontal direction (W), a main body third end (63) which is one end in the vertical direction (Z), and a main body fourth end (64) which is the other end in the vertical direction (Z). A fastening tape (90) is attached to the main body first end (61) and the main body second end (62). The main body third end (63) is positioned on the ventral side of the cat when worn. The main body fourth end (64) is opposite to the main body third end (63) and is positioned on the back side of the cat when worn. In addition, the end portion in the present invention is a portion that occupies a certain range including the end edge. The first end portion (61) of the main body is a portion that extends inward in the horizontal direction (W) from the first end edge (61E), which is the end edge of the horizontal direction (W) of the main body (2). Likewise, the second end portion (62) of the main body is a portion that extends inward in the horizontal direction (W) from the second end edge (62E), which is the other end edge of the horizontal direction (W) of the main body (2). The first end portion and the second end portion (62) of the main body may be an area between the end edge of the horizontal direction (W) of the main body (2) and the end edge of the horizontal direction (W) of the absorption core (30). In addition, the third end portion (63) of the main body is a portion that extends inward in the vertical direction (Z) from the third end edge (63E), which is the end edge of the vertical direction (Z) of the main body (2). Likewise, the fourth end (64) of the main body is a portion that extends inward in the vertical direction (Z) from the fourth end edge (64E), which is the other end edge in the vertical direction (Z) of the main body (2). The third end (63) and the fourth end (64) of the main body may be the area between the end edge in the vertical direction (Z) of the main body (2) and the end edge in the vertical direction (Z) of the absorption core (30).Also, the fourth end (64) of the main body may be an area between the end edge in the vertical direction (Z) of the main body (2) and the end edge in the vertical direction (Z) of the absorption core (30), or an area between the end edge in the vertical direction (Z) of the main body (2) and the tail hole (70) described later.

[0036] The main body (2) extends across a ventral area (S1) that is in contact with the ventral side of the cat, a dorsal area (S2) that is in contact with the dorsal side of the cat, and a groin area (S3) that is in contact with the groin area of ​​the cat. The ventral area (S1) is an area that includes the third end (63) of the main body. A fastening tape (90) is placed in the ventral area (S1). The dorsal area (S2) is an area that includes the fourth end (64) of the main body. The groin area (S3) is an area between the ventral area (S1) and the dorsal area (S2). The groin area (S3) may be an area where a leg circumference opening (5) is formed. The leg circumference opening (5) is an area that is placed around the cat's leg and is recessed inward in the transverse direction (W) from the outer edge of the main body (2). The outer edge of the main body (2) is formed by the first edge (61E) and the second edge (62E).

[0037] The main body (2) has at least a surface sheet (10), a back sheet (20), and an absorbent core (30). The surface sheet (10) is positioned on the inner surface (2P) of the main body (2) that is in contact with the cat. The surface sheet (10) has liquid permeability that allows body fluid to pass through to the absorbent core (30). The surface sheet (10) may have a center sheet (11) located in the center of the vertical direction (Z) and covering the absorbent core (30), and side sheets (12) covering both sides of the center sheet (11) in the horizontal direction (W). As shown in FIG. 2, the side sheets (12) may be folded. Specifically, the inner edge of the side sheet (12) in the horizontal direction (W) is folded back toward the back side (T2). A side elastic member (13) that is extended in the vertical direction (Z) may be placed between the folded side sheets (12). The side elastic member (13) may form a cat-side standing anti-gather (15). The anti-gather (15) is an standing gather located on the skin side rather than the absorbent core (30) and has an standing portion (16) and a fixed portion (17). The standing portion (16) is a part where the side sheet (12) is not fixed to the center sheet (11) and is a part that can stand up due to the contraction of the side elastic member (13). The fixed portion (17) is a part where the side sheet (12) is fixed to the center sheet (11) and is located on the outer side in the horizontal direction (W) compared to the standing portion (16). Additionally, the burrow gather (15) may have a second fixing part (18) located on the outer side in the vertical direction (Z) of the standing part (16), where the side seat (12) is fixed to the center seat (11). The standing part (16) can stand up towards the cat using the fixing part (17) and the second fixing part (18) as reference points.

[0038] The absorbent core (30) is positioned between the surface sheet (10) and the back sheet (20). The absorbent core (30) is laminated with an absorbent material such as pulp. As shown in FIG. 2, a core wrap (32) covering the absorbent core (30) may be installed. The absorbent core (30) is positioned further inward than the two end edges of the main body (2) in the horizontal direction (W). That is, the length of the absorbent core (30) in the horizontal direction (W) is shorter than the length of the main body (2) in the horizontal direction (W). The absorbent core (30) is positioned in the center of the main body (2) in the horizontal direction (W) and is not installed on the outer side of the main body (2) in the horizontal direction (W). In addition, the absorbent core (30) may be positioned further inward than the two end edges of the main body (2) in the vertical direction (Z). That is, the length in the vertical direction (Z) of the absorbent core (30) may be shorter than the length in the vertical direction (Z) of the main body (2). The absorbent core (30) may be positioned in the center of the vertical direction (Z) of the main body (2) and may not be installed on the outer side of the vertical direction (Z) of the main body (2). The absorbent core (30) may be positioned over at least the lower crotch area (S3) and the ventral area (S1) and may not be positioned in the back area (S2). The center of the vertical direction (CZ30) of the absorbent core (30) may be located ventrally rather than the center of the vertical direction of the diaper. The absorbent core (30) may be spaced in the vertical direction (Z) from the tail hole (70) described later and may be located ventrally rather than the tail hole (70). The absorbent core (30) will be described in detail later.

[0039] The back sheet (20) is placed on the outer surface (2Q) of the main body (2) that is located on the outside when worn. The back sheet (20) may have a liquid-impermeable back film (21) and a back non-woven fabric (22) located on the back side of the back film (21). In addition, in a modified example, the back sheet may have a liquid-impermeable back film and a back non-woven fabric located on the inner side of the back film (21). The length in the horizontal direction (W) of the back film (21) may be shorter than the length in the horizontal direction (W) of the back non-woven fabric (22). That is, the back non-woven fabric (22) may extend outward in both sides of the horizontal direction (W) of the back film (21).

[0040] The fastening tape (90) extends outward in the horizontal direction (W) from the third end (63) of the main body (2), which is one end in the vertical direction (Z) of the main body (2). More specifically, the fastening tape (90) extends outward in the horizontal direction (W) from the first end edge (61E) and the second end edge (62E) of the main body (2) at the third end (63) of the main body. The fastening tape (90) joins the ventral region (S1) and the dorsal region (S2). The fastening tape (90) may have a base sheet (91) joined to the main body (2) and a joining portion (92) installed on the base sheet (91) and capable of joining to the outer surface (2Q) of the main body (2). The joining portion (92) is positioned on the surface side (T1) of the fastening tape (90). The joint portion (92) may be a mechanical fastener and is configured to be joined to a target portion (45) installed on the outer surface (2Q) of the main body portion (2). At least a portion of the target portion (45) may be installed in the back area (S2). The target portion (45) of this embodiment extends across the back area (S2) and the crotch area (S3). In addition, in a modified example, the main body portion (2) may not have a target portion (45), and the joint portion (92) may be configured to be joined to a back sheet (20) on the outer surface (2Q) side of the main body portion (2). In a modified example, the joint portion may extend outward in the horizontal direction (W) from the main body portion (2) at the fourth end portion (64) of the main body.

[0041] A tail hole (70) may be installed in the main body (2) of the cat diaper (1). The tail hole (70) may have a hole main body (71) through which the cat's tail can be inserted and passed. In the diaper having the tail hole (70), when covering the cat's buttocks and back by the fourth end (64) of the main body, the cat's tail may be inserted and passed through the hole main body (71) of the tail hole (70). The hole main body (71) may be a semicircular slit. The hole main body (71) may be a continuous slit, or may be configured such as a stitching hole, allowing the surface sheet (10) and the back sheet (20) to be torn. The tail hole (70) may have a slit portion (72) to enlarge the dimensions of the hole main body (71). The slit portion (72) may be configured such that the surface sheet (10) and the back sheet (20) can be torn, such as through a sewing machine, and the dimensions of the hole body portion (71) may be adjusted according to the type and growth process of the cat. In this embodiment, two slit portions are installed on each side of the left and right relative to the center of the horizontal direction (W) of the tail hole (70). In a modified example, one slit portion (72) may be installed on each side of the left and right relative to the center of the horizontal direction (W) of the tail hole (70), or two or more may be installed so that the dimensions of the tail hole (70) can be adjusted in multiple stages. The hole body portion (71) and the slit portion (72) may be parts where the surface sheet (10) and the back sheet (20) are cut.

[0042] When attaching the cat diaper (1) to the cat, the third end (63) of the main body (the end on the side where the joint (92) is installed) is placed against the cat's belly. At this time, the fourth end (64) of the main body is passed between the cat's legs and also pulled out to the rear side of the cat. Then, while placing the center of the main body (2) in the vertical direction (Z) against the cat's urination hole, the cat's tail is passed through the tail hole (70) and pulled out to the back side (T2) of the diaper. The cat's buttocks and back are covered by the fourth end (64) of the main body. Subsequently, the joint (92) is stretched toward the cat's back side and the joint (92) is fixed to the outer surface of the target part (45) of the fourth end (64) of the main body located on the back side. By doing this, the cat diaper (1) can be attached to cover the cat's belly, back, and under the crotch, as shown in FIG. 3. That is, the cat diaper (1) is fitted to cover the cat from the belly side, past the crotch, to the back side.

[0043] Furthermore, conventional pet diapers (e.g., Japanese Patent Publication No. 2017-131160) are configured to be fitted to both dogs and cats. However, as a result of the applicant’s investigation, it was found that the shape of the leg circumference in cats and the shape of the leg circumference in dogs are significantly different. More specifically, in the groin area of ​​a dog's leg, there is relatively little flesh around the bone. Also, when lying flat, a dog's leg is extended relatively straight, although it is slightly bent at the joint. In contrast, in the groin area of ​​a cat's leg, there is more flesh around the bone compared to a dog. Also, when lying flat, a cat's leg is bent significantly at the joint. As such, because cats have more flesh in the groin area and the groin joint is bent, there were cases where it was difficult to fit a diaper to the groin area of ​​the legs compared to dogs. If the diaper did not fit snugly in the groin area, it would shift or slip off during the wearing process.

[0044] The diaper of the present embodiment is configured to prevent misalignment when worn by fitting around the circumference of a cat's legs. Next, a configuration that facilitates fitting around the circumference of a cat's legs will be described in detail. FIG. 4 is a schematic diagram showing the body shapes of a cat and a dog. FIG. 4(a) shows the body shape of a cat, and FIG. 4(b) shows the body shape of a dog. As shown in FIG. 1, the leg circumference opening (5) may have a ventral side (51) extending inward in the horizontal direction (W) from the outer edge (2E) of the main body part (2) on the ventral side, a dorsal side (52) extending inward in the horizontal direction (W) from the outer edge (2E) of the main body part (2) on the dorsal side, and a vertical side (53) connecting the ventral side (51) and the dorsal side (52) and extending in the vertical direction (Z). In a shape where the vertical side (53) is straight and the ventral side (51) and dorsal side (52) are curved, the boundary between the ventral side (51) and the vertical side (53) may be a straight line and a curved line. Also, in a shape where the ventral side (51), dorsal side (52), and vertical side (53) are all curved, the boundary may be a place where the curvature changes. Also, in a shape where there are multiple boundaries where the curvature changes, the boundary may be set by making the part extending at an angle of 45 or less with respect to the horizontal direction (W) the ventral side (51) and dorsal side (52), and the part extending at an angle of less than 45 with respect to the vertical direction (Z) the vertical side (53). In the case where the leg circumference opening is in the shape of an arc with a constant radius of curvature, the intersection point of the leg circumference opening (5) and a virtual line extending in the horizontal direction passing through the center of the radius of curvature of the arc may be the boundary between the ventral side (51) and the vertical side (53) or the boundary between the dorsal side (52) and the vertical side (53).In the case where the leg circumference opening (5) is in the shape of an elliptical arc with varying radius of curvature, the intersection point of the leg circumference opening (5) and a virtual line extending in the horizontal direction passing through the center of each radius of curvature may be the boundary between the ventral side (51) and the vertical side (53) or the boundary between the dorsal side (52) and the vertical side (53).

[0045] As shown in FIG. 1, if the length in the vertical direction (Z) of the ventral side (51) is a and the length in the horizontal direction (W) of the ventral side (51) is b, it is preferable to satisfy a < b. The length in the vertical direction (Z) of the ventral side (51) (a) is, in other words, the vertical distance (Z) between the ventral end edge of the leg circumference opening (5) and the vertical side (53). The length in the horizontal direction (W) of the ventral side (51) (b) is, in other words, the horizontal distance (W) between the first end edge (61E) and the ventral end edge of the vertical side (53). When attaching a diaper to a cat, the ventral area (S1) is placed against the cat's ventral side, the area under the crotch (S3) is placed against the cat's crotch, and the dorsal area (S2) is placed against the cat's back side, and the ventral area (S1) and the dorsal area (S2) are fixedly attached by a fastening tape (90). As shown in FIG. 3, in the wearing state, the leg circumference opening (5) is positioned to surround the cat's hind leg, and the ventral side (51) of the leg circumference opening (5) touches the ventral surface of the cat's hind leg. Since the length (b) in the horizontal direction (W) of the ventral side (51) is longer than the length (a) in the vertical direction (Z) of the ventral side (51), when the leg circumference opening (5) fits the leg circumference, an area extending in the horizontal direction (W) can be secured within a range where the length in the vertical direction (Z) is short. For example, in the case where a = b, since the length of the longitudinal direction (Z) and the length of the transverse direction (W) of the ventral side (51) are equal, it gradually moves in the transverse direction within the long longitudinal range (Z), making it easy to fit loosely around the leg.

[0046] As shown in Fig. 4, the applicant's investigation revealed that the shape of the leg circumference in cats and dogs is significantly different. More specifically, in the groin area of ​​a dog's leg, there is relatively little flesh around the bone. Also, when lying flat, a dog's leg is extended relatively straight, although it is slightly bent at the joint. In contrast, in the groin area of ​​a cat's leg, there is more flesh around the bone compared to a dog. Also, when lying flat, a cat's leg is bent significantly at the joint. As such, because cats have a lot of flesh in the groin area and the groin joint is bent, it was sometimes difficult to fit a diaper to the groin area compared to dogs. If the diaper does not fit the groin area, it may slip or come off during the wearing process. However, by satisfying a < b, it locally extends inward in the horizontal direction (W) within a short range in the vertical direction (Z), making it easy to fit tightly around the leg circumference. By fitting tightly around the leg circumference, it is easy to fit tightly around the leg circumference without the user being conscious of it, especially for cats that are difficult to fit tightly around the leg circumference due to being relatively fleshy or having bent joints, thereby suppressing the problem of it slipping off during the wearing process.

[0047] If the vertical distance (Z) between the fastening tape (90) and the vertical side (53) is denoted as c, and the horizontal length (W) of the ventral side (51) is denoted as b, it is desirable to satisfy c < b. The vertical distance (Z) between the fastening tape (90) and the vertical side (53) (c) is, in other words, the vertical distance (Z) between the boundary between the ventral side (51) and the vertical side (53) and the end edge of the back side of the fastening tape (90). When attaching the diaper to the cat, the fastening tape (90) is stretched in the horizontal direction and attached to the target part (45), etc. At this time, the ventral side (51) of the leg circumference opening (5) is stretched in the horizontal direction (W), and the line extending from between the two hind legs through the hind legs to the back side is formed by the line extending in the vertical direction (Z) connecting the vertical side (53) and the fastening tape (90). Since the distance (c) is shorter than the length (b) in the horizontal direction (W) of the ventral side (51), when the leg circumference opening (5) fits around the leg, an area extending in the horizontal direction (W) can be secured within a range where the length in the vertical direction (Z) is short. Because it is locally inserted in the horizontal direction within a short range in the vertical direction (Z), it is easy to fit tightly around the leg. By fitting tightly around the leg, the problem of it slipping off during the wearing process can be suppressed.

[0048] If the length in the vertical direction (Z) of the main body (2) is d, the ratio of the length in the vertical direction (Z) (a) of the ventral side (51) to d should be 10% or less. The length in the vertical direction (Z) (d) of the main body (2) is, in other words, the distance in the vertical direction (Z) between the third edge (63E) and the fourth edge (64E). Additionally, the length in the vertical direction (Z) of the main body (2) may be the total length in the vertical direction (Z) of the cat diaper (1). Because the ratio of the length in the vertical direction (a) of the ventral side (51) to the entire main body (2) is low, the vertical misalignment (Z) relative to the leg circumference can be suppressed. This suppresses problems such as the diaper slipping off when worn or hindering the forward and backward movement of the legs due to an increased amount of vertical misalignment (Z).

[0049] If the vertical distance between the ventral side (51) and the target part (45) is denoted as e, the ratio of e to the length (d) in the vertical direction (Z) of the main body part (2) should be 60% or more. The vertical distance between the ventral side (51) and the target part (45) is, in other words, the vertical distance between the boundary of the ventral side (51) and the vertical side (53) and the target part (45). The area between the ventral side (51) and the target part (45) in the vertical direction (Z) is an area that covers the body from the ventral side to the back side while the fastening tape (90) is fixedly attached to the target part (45), etc., and is an area that deforms in accordance with the movement of the body or the stretching and contraction of the skin. Because the ratio of the length of e to the entire main body part (2) is high, a wide area that deforms according to the movement of the cat can be secured. In addition, as a result of the applicant's careful investigation, it was found that the normal way of moving the body of cats and dogs is significantly different. More specifically, it was found that dogs have many movements in a planar direction, such as running on the ground, while cats have many movements in a vertical direction, such as jumping or leaping, compared to dogs. When attempting to move the body in a vertical direction, the skin around the abdomen, buttocks, and legs tends to stretch more easily by extending the hind legs in one go while bending them, or by extending the legs while tucking in the belly and rounding the back. By ensuring the length of e, the diaper can be followed when the body is moved in a vertical direction, thereby preventing the diaper from unintentionally slipping out.

[0050] If f is the vertical distance (Z) between the dorsal end edge of the tail hole (70) and the target part (45), the ratio of f to the vertical length (D) of the main body part (2) in the vertical direction (Z) is preferably 20% or more. The vertical distance (F) between the dorsal end edge of the tail hole (70) and the target part (45) in the vertical direction (Z) is the length of the area covering the area extending from the tail hole (70) to the dorsal side while the fastening tape (90) is fixedly attached to the target part (45), and is the length of the area that deforms in accordance with the movement of the body or the stretching of the skin on the dorsal side. Compared to dogs, cats often take a posture where they round their backs, sit with their backs rounded, or adopt a posture where they round their backs. When they take a posture where they round their backs or extend their backs, the movement of the back and the amount of skin stretching are large. Because the ratio of the length of f to the entire main body part (2) is high, a wide area of ​​deformation can be secured on the back side according to the cat's movements, etc., so that the diaper follows the movement of the back side and prevents the diaper from unintentionally slipping out. Also, suitably, the vertical distance (f) between the tail hole (hole main body part (71) + slit part (72)) (70) and the target part (45) should be at least 20% of the vertical length (Z) of the main body part (2). The vertical distance (f) between the tail hole (hole main body part (71) + slit part (72)) (70) and the target part (45) is the length of the area of ​​deformation that follows the movement of the body or the stretching of the skin on the back side while the opening of the tail hole is enlarged by the slit part (72). According to the configuration, even if the dimensions of the tail hole (70) are enlarged by the slit portion (72), a wide area of ​​deformation can be secured on the back side according to the cat's movement, etc., so that the diaper follows the movement of the back side and prevents the diaper from unintentionally slipping out.

[0051] If the maximum length in the vertical direction (Z) of the hole body part (71) is g, the ratio of g to the vertical distance (e) between the ventral side (51) and the target part (45) in the vertical direction (Z) should be 3.50% or less. Dogs tend to move their tails relatively often in the left-right direction, while cats tend to move their tails relatively often in the up-down direction. Therefore, when a cat is wearing a diaper, the hole body part (71) is stretched in the vertical direction, and the diaper is prone to shifting in the vertical direction (Z). At this time, since the ratio of the length in the vertical direction of the hole body part (71) to the operating area is low, the amount of the diaper shifting in the vertical direction (Z) through the hole body part (71) can be suppressed. Also, if the maximum length in the vertical direction of the tail hole is h, the ratio of h to the vertical distance (e) between the ventral side (51) and the target part (45) in the vertical direction (Z) should be 5.5% or less. The maximum length (h) in the vertical direction (Z) of the tail hole (70) is the maximum length in the vertical direction (Z) of the tail hole (hole body part (71) + slit part (72)) (70). According to the configuration, when the dimensions of the tail hole (70) are enlarged by the slit part (72), the ratio of the length in the vertical direction of the tail hole (70) to the movable area is lowered, thereby suppressing the amount of the diaper slipping in the vertical direction (Z) through the tail hole (70).

[0052] The ratio of the maximum length in the horizontal direction (W) of the hole body part (71) to the maximum length in the horizontal direction (W) of the absorbent core (30) is preferably 35% or more. When wearing, by inserting a tail into the tail hole (70), the hole body part (71) of the tail hole (70) can be stretched in the horizontal direction (W) through the tail, and a force that stretches in the horizontal direction (W) is applied to the absorbent core (30). By widening the absorbent core (30) in the horizontal direction (W), the twisting of the absorbent core (30) can be reduced, and it is easy to secure the length in the horizontal direction (W) of the absorbent core (30) when wearing. In particular, compared to dogs, cats have a higher ratio of the diameter of the tail to the circumference of the body. Therefore, it is easy to obtain the effect of reducing the twisting of the absorbent core (30) through the tail. The twist of the absorbent core (30) can be widened, and it is easy to secure the length of the absorbent core (30) in the horizontal direction (W) when worn. Also, because the ratio of the maximum length of the hole body part (71) in the horizontal direction (W) to the maximum length of the absorbent core (30) in the horizontal direction (W) is high, the force that widens the absorbent core (30) through the hole body part (71) is easily transmitted throughout the entire horizontal direction (W) of the absorbent core (30). Since the fit is less likely to deteriorate due to deformation of the absorbent core (30), leakage of body fluids can be suppressed, and at the same time, the cat can maintain a state where it is easy to move its legs when worn. Also, suitably, the ratio of the maximum length of the tail hole (hole body part (71) + slit part (72)) (70) in the horizontal direction (W) to the maximum length of the absorbent core (30) in the horizontal direction (W) should be greater than 40%. According to the configuration, when the dimensions of the tail hole (70) are enlarged by the slit portion (72), the ratio of the maximum length in the horizontal direction of the hole body portion (71) to the maximum length in the horizontal direction of the absorption core (30) is high, so the force that expands the absorption core (30) through the tail hole (70) is more easily transmitted across the entire horizontal direction (W) of the absorption core (30).Additionally, the tail hole (70) may be positioned further back than the outer edge (R30) located on the back side of the absorption core (30). Since the tail hole (70) is installed in an area that does not overlap with the absorption core (30), the force that tensions the tail hole (70) in the transverse direction (W) through the tail is less likely to be affected by the rigidity of the absorption core (30). Therefore, it is easier to obtain the effect of reducing the twisting of the absorption core (30) through the tail.

[0053] Next, the absorbing core (30) will be described in detail with reference to FIG. 5. FIG. 5 is an enlarged plan view of the absorbing core (30). The absorbing core (30) may have a constricted portion (31) that narrows inward in the horizontal direction (W). The constricted portion (31) is a portion that is recessed inward in the horizontal direction (W) from the outer edge (30E) of the absorbing core (30). The inner edge (31D) of the constricted portion (31) is the portion located furthest inward in the horizontal direction of the constricted portion (31), and the outer edge (31E) of the constricted portion (31) is the portion located furthest outward in the horizontal direction (W) of the constricted portion (31), and may coincide with the outer edge (30E) of the absorbing core (30). The ventral end edge (P311) at the inner edge (31D) in the horizontal direction (W) of the constriction (31) may be located on the dorsal side of the center (CZ30) in the vertical direction (Z) of the absorption core (30). In a configuration where the inner edge (31D) of the constriction (31) is not extended in the vertical direction (Z), as in this embodiment, the ventral end edge (P311) is a point and coincides with the dorsal end edge (P312) at the inner edge (31D) of the constriction (31). However, in the configuration where the inner edge (31D) of the constriction (31) extends in the longitudinal direction (Z), the ventral end edge (P311) is the edge located furthest ventrally from the inner edge (31D) extending in the longitudinal direction (Z), and is spaced apart in the longitudinal direction (Z) from the dorsal end edge (P312).

[0054] As shown in FIG. 3, when worn, the leg opening (5) is positioned to surround the cat's hind leg, and the inner edge (31D) of the constriction (31) of the absorbent core (30) fits around the part (105) (see FIG. 4) where the leg width (distance between the two legs) is narrowest from the hind leg to the buttocks. At this time, in conventional diapers for dogs and cats, the ventral end edge (P311) of the inner edge (31D) of the constriction (31) is positioned at the center (CZ30) of the longitudinal direction (Z) of the absorbent core (30) or is positioned at an angle to the ventral side. Consequently, it was not possible to sufficiently secure the longitudinal length (Z) of the absorbent core (30) extending outward from the position where the leg width is narrowest. Therefore, when the amount of elasticity of the abdominal skin increases due to the cat's vertical movement, the absorbent core (30) cannot be continuously followed, and there was a problem where the diaper would shift or come off. Also, when the cat bends or extends its hind legs to move vertically, the absorbent core (30) extending ventrally from the position where the leg width is narrowest (105) is repeatedly deformed, making it difficult to continue covering the body. As a result of observing the cat's wearing condition, the applicant found that the vertical length (Z) of the absorbent core (30) extending ventrally from the position where the leg width is narrowest (105) corresponds to the vertical length of the absorbent core (30) extending ventrally from the ventral end edge (P311). By positioning the ventral end edge (P311) at the inner edge (31D) of the horizontal direction (W) of the constriction (31) more dorsally than the center (CZ30) of the longitudinal direction (Z) of the absorption core, the longitudinal length (Z) of the absorption core (30) that extends ventrally from the position (105) where the leg width is narrowest can be sufficiently secured.Therefore, even if the legs are repeatedly moved back and forth due to vertical movement, the body can be covered by the absorbent core (30). Also, since the vertical length (Z) of the absorbent core (30) extending outward from the position (105) where the leg width is narrowest can be sufficiently secured, the absorbent core can be continuously followed even if the elasticity of the abdominal skin increases, making it easy to maintain the state of wearing a diaper.

[0055] The length (Z31D) in the vertical direction (Z) of the inner edge (31D) of the constriction (31) (see FIG. 7) is preferably 30% or less of the length (Z30) in the vertical direction (Z) of the absorbent core (30). In addition, the inner edge (31D) of the constriction (31) of this embodiment is dot-shaped, and the length (Z) in the vertical direction of the inner edge (31D) is a value that is infinitely close to 0. When a cat moves in a vertical direction, the diaper is prone to shifting in the vertical direction (Z) due to impacts such as landing or the vertical stretching of the skin. At this time, since the length of the inner edge (31D) of the constriction (31) is 30% or less, the amount of vertical shift (Z) is 30% or less of the absorbent core while fitting to the position (105) where the leg width is narrowest. Even if force is applied in a direction that causes the diaper to shift due to impact or the like, the diaper can still be covered against the body. Also, the length (Z31D) of the inner edge (31D) in the vertical direction (Z) is 40% or less of the length (Z31) of the constriction (31) in the vertical direction (Z). Since the ratio of the length (Z) occupied by the inner edge (31D) within the constriction (31) is low, the amount of vertical deviation (Z) of the diaper can be suppressed.

[0056] The constriction (31) has a ventral edge (311) located on the ventral side, a dorsal edge (312) located on the dorsal side, and a side edge (33) connecting the inner edge (31D). The ventral edge (311) is the edge located furthest ventrally in the constriction (31), and the dorsal edge (312) is the edge located furthest dorsally in the constriction (31). The side edge (33) has a ventral edge (F33) extending from the ventral edge (311) to the inner edge (31D), and a dorsal edge (R33) extending from the dorsal edge (312) to the inner edge (31D). The ventral edge (F33) and the dorsal edge (R33) may be asymmetrical rather than symmetrical with respect to a horizontal imaginary line extending in the horizontal direction (W). The ventral edge (F33) has a portion (SF33) that extends straight toward the dorsal side from the ventral end edge (311), and a portion (CF33) that connects the straight portion (SF33) and the inner edge (31D) in a curved manner. The straight portion (SF33) is inclined at an angle α with respect to the longitudinal direction (Z). The angle α is smaller than the angle of inclination with respect to the longitudinal direction (Z) of the curved connecting portion (CF33). Also, in the ventral edge (F33), the length in the longitudinal direction (Z) of the straight portion (SF33) is shorter than the length in the longitudinal direction (Z) of the curved connecting portion (CF33). Accordingly, the ventral edge (F33) is shaped to be gently indented in the transverse direction (W) in more than half of the longitudinal direction (Z) of the constriction (31), and locally indented in the transverse direction (W) in a short longitudinal range (Z) of the constriction (31). Because of this, the longitudinal deviation (Z) around the cat's leg can be further suppressed. Also, the dorsal edge (R33) extends in a curved shape from the dorsal edge (312) toward the inner edge (31D) and does not have a part that extends in a straight line.

[0057] The distance (G12) between the first intersection point (P1) where the virtual line (WL31), which passes through the center of the horizontal direction (W) of the constriction (31) and extends in the vertical direction, intersects the ventral edge (F33), and the second intersection point (P2) where the virtual line (WL31) intersects the dorsal edge (R33), is preferably less than 40% of the length (Z30) in the vertical direction (Z) of the absorbing core (30). The distance (G12) between the first intersection point (P1) and the second intersection point (P2) is the length in the vertical direction (Z) of the constriction (31) at the center of the horizontal direction (W) of the constriction (31), and is a length within a range where the absorbing core (30) is not in close contact with the hind leg and the absorbing core is prone to shifting in the vertical direction (Z). By making the distance (G12) between the first intersection point (P1) and the second intersection point (P2) less than 40% of the length (Z30) of the longitudinal direction (Z) of the absorbent core (30), the amount of longitudinal deviation (Z) around the hind leg is easily suppressed to 40% or less of the absorbent core (30). Even if a force is applied that causes the diaper to deviate in the longitudinal direction (Z) due to impact or the like, the diaper can still cover the body.

[0058] At least a portion of the ventral edge (F33) extending toward the ventral side from the inner edge (31D) may extend outward in the transverse direction (W) toward the ventral side. More specifically, among the ventral edge (F33), the portion (SF33) extending straight toward the dorsal side from the ventral end edge (311) and the portion (CF33) extending curvedly are each extended outward in the transverse direction (W) toward the ventral side from the inner edge (31D). By shortening the transverse length (W) of the absorbent core (30) at the inner edge (31D) of the ventral side (31), it is easy to fit the absorbent core (30) to the part of the cat's legs that has a shorter transverse length. In particular, cats have narrower legs than dogs, and by making the transverse length (W) of the absorbent core (30) shorter, it can be fitted more appropriately to the cat's body shape. Additionally, since the length in the transverse direction (W) is extended from the inner edge (31D) of the constriction (31) toward the ventral side, the length in the transverse direction (W) of the absorbing core (30) at the inner edge (31D) of the constriction (31) can be shortened while securing the area of ​​the absorbing core (30) at the ventral side. Also, the longitudinal side (53) of the leg circumference opening (5) may be extended outward in the transverse direction (W) from the ventral side toward the dorsal side. The portion extending outward in the transverse direction (W) from the ventral side toward the dorsal side spans from the area of ​​the ventral side beyond the inner edge (31D) toward the area of ​​the dorsal side beyond the inner edge. The longitudinal side (53) of the leg circumference opening (5) is extended inward in the transverse direction (W) from the dorsal side toward the ventral side and has a slope opposite to that of the outer edge of the absorbing core (30). For this reason, in the part where the horizontal length (W) of the absorbent core (30) is shortened, the horizontal length (W) of the leg opening (5) can be extended, so that the entire diaper can continuously cover the torso, thereby preventing leakage or misalignment.

[0059] The absorbent core (30) has an ventral outer edge (F30) located on the ventral side and a dorsal outer edge (R30) located on the dorsal side. The ventral outer edge (F30) is the edge located furthest ventrally in the absorbent core (30), and the dorsal outer edge (R30) is the edge located furthest dorsally in the absorbent core (30). The distance (GF30) between the ventral outer edge (F30) and the first intersection point (P1) may be longer than the distance (GR30) between the dorsal outer edge (R30) and the second intersection point (P2). The first intersection point (P1) and the second intersection point (P2) are located at the center of the transverse direction (W) in the constriction (31) and are easily accessible to the center of the transverse direction (W) of the cat's hind leg. The length of the vertical direction (Z) of the absorbent core (30) extending ventrally from the center of the horizontal direction (W) in the constriction (31) is longer than the length of the vertical direction (Z) of the absorbent core (30) extending dorsally from the center of the horizontal direction (W) in the constriction (31). Since the length of the vertical direction (Z) of the absorbent core (30) extending ventrally from the hind legs can be sufficiently secured, the absorbent core (30) can be continuously followed even when the amount of elasticity of the abdominal skin increases, making it easy to maintain the state of wearing a diaper. In addition, to secure the length of the vertical direction (Z) of the absorbent core (30) extending ventrally from the hind legs, at least a portion of the inner edge (31D) of the constriction (31) may be located ventrally from the center (CZ30) of the vertical direction (Z) of the absorbent core (30).

[0060] The absorbent core (30) has a ventral region (RF30) located ventrally from the center (CZ30) of the longitudinal direction (Z) of the absorbent core (30), and a dorsal region (RR30) located dorsally from the center (CZ30) of the longitudinal direction (Z) of the absorbent core (30). The area of ​​the ventral region (RF30) may be larger than the area of ​​the dorsal region (RR30). The urinary opening (201F) of a female dog is easily in contact with the dorsal region (RR30), and the urinary opening (201M) of a male dog is easily in contact with the ventral region (RF30). Meanwhile, the urinary opening (101) of a cat is easily in contact with the dorsal region (RR30) whether it is male or female. In a cat diaper, by making the area of ​​the ventral region (RF30) larger, it is possible to hold body fluids that spread from the dorsal region (RR30) to the ventral region (RF30). Also, generally, cats are prone to urinary tract diseases because they have low water intake. When they develop urinary tract diseases, symptoms of polyuria are likely to occur. In the case of polyuria, the tendency for diffusion to spread to the ventral area (RF30) of the absorption core (30) becomes more pronounced. By increasing the area of ​​the ventral area (RF30), the fluid that spreads from the dorsal area (RR30) to the ventral area (RF30) can be retained even in the case of polyuria.

[0061] The length (WD30) of the absorption core (30) in the horizontal direction (W) at the inner edge (31D) of the constriction (31) may be 80% or less of the maximum length of the absorption core (30) in the horizontal direction at the dorsal region (RR30). The length (WD30) of the absorption core (30) in the horizontal direction (W) at the inner edge (31D) of the constriction (31) is the distance between the left and right inner edges (31D). In this embodiment, the maximum length of the absorption core (30) in the horizontal direction at the dorsal region (RR30) is the distance between the outer edges (30E) of the absorption core (30). The difference between the maximum length of the horizontal direction (W) at the dorsal region (RR30) of the absorption core (30) and the length of the absorption core (30) in the horizontal direction (W) at the inner edge (31D) of the constriction (31) can be set to be large. As described above, the urination port (101) of a cat is easily accessible to the dorsal region (RR30), whether male or female. In a cat diaper, the absorption capacity of the dorsal region (RR30) can be secured by increasing the maximum length in the horizontal direction (W) of the absorbent core (30) in the dorsal region (RR30). Furthermore, compared to dogs, cats have a shorter distance between the urination port (101) and the tail (102), making it easy for body fluid to leak from the tail hole (70). By increasing the maximum length in the horizontal direction (W) of the absorbent core (30) in the dorsal region (RR30), the absorption capacity of the dorsal region (RR30) can be secured, thereby suppressing the leakage of body fluid from the tail hole (70). Also, cats generally have less individual variation in body shape compared to dogs, and the leg width at the part where the leg width is narrowest (105) is short. By shortening the horizontal length (W) (WD30) of the absorbent core (30) at the inner edge (31D) of the constriction (31), the diaper can be properly fitted to the part (105) where the leg width is shortest.

[0062] As shown in FIG. 1, the maximum length (M70) in the horizontal direction (W) of the tail hole (70) may be greater than or equal to the length (WD30) in the horizontal direction (W) of the absorbing core (30) at the inner edge (31D) of the constriction (31). Here, the maximum length (M30) in the horizontal direction (W) of the tail hole (70) is the length in the horizontal direction (W) of the combined area of ​​the hole body (71) and the slit (72) in the tail hole (70) having a slit (72). In this embodiment, it is the distance between the outer edges of the slit (72) located at the outermost horizontal direction (W). When worn, by inserting the tail (102) into the tail hole (70), the tail hole (70) can be stretched in the horizontal direction (W) through the tail, and a force that stretches in the horizontal direction (W) is applied to the absorbing core (30). By widening the absorbent core (30) in the horizontal direction, the twisting of the absorbent core can be reduced, and it is easy to secure the length of the absorbent core (30) in the horizontal direction (W) when worn. In particular, compared to dogs, cats have a higher ratio of the diameter of their tail to the circumference of their body. Therefore, it is easy to obtain the effect of reducing the twisting of the absorbent core (30) through the tail. Since the maximum length (M70) in the horizontal direction (W) of the tail hole (70) is greater than or equal to the length (WD30) in the horizontal direction (W) of the absorbent core (30) of the constriction (31), when a force to widen the absorbent core (30) is applied across the entire horizontal direction (W) of the tail hole (70), the entire horizontal direction (W) of the absorbent core (30) in the constriction (31) can be widened. Additionally, since the tail hole (70) extends outward in the transverse direction from the inner edge (31D) of the constriction (31), the absorption core (30) can be stretched from the outer side in the transverse direction (W), thereby further suppressing the twisting of the absorption core (30).

[0063] The tail hole (70) may be positioned further back than the outer edge (R30) located on the back side of the absorption core (30). That is, the tail hole (70) and the absorption core (30) may be spaced apart in the vertical direction (Z). Since the tail hole (70) is installed in an area that does not overlap with the absorption core (30), the force that tensions the tail hole (70) in the horizontal direction (W) through the tail is less likely to be affected by the rigidity of the absorption core (30). Therefore, it is easier to obtain the effect of reducing the twisting of the absorption core (30) through the tail.

[0064] In the planar view, an overlapping section (R32) (see FIG. 1) where core wraps (32) overlap each other may be installed in the area overlapping with the constriction (31). The overlapping section (R32) is an area where the absorption core (30) is not placed and the core wraps (32) come into contact with each other. Since the absorption core (30) is not placed in the constriction (31), it may be difficult to maintain its rigidity compared to the area where the absorption core (30) is placed. However, by overlapping the core wraps (32) in the overlapping section (R32), the rigidity near the constriction (31) can be increased. The twisting of the absorption core (30) in the constriction (31) can be suppressed, and the fit can be maintained.

[0065] In the extended state of the diaper, the inner edge (17D) in the horizontal direction (W) of the fixed part (17) of the drainage gather (15) may be located further outward in the horizontal direction (W) than the inner edge (31D) of the constriction part (31). In the drainage gather (15), the upright part (16) rises starting from the fixed part (17), and at the same time, due to the difference in rigidity of the absorbent core (30), the entire upright part (16) and the fixed part (17) rise starting from the absorbent core (30). At this time, because the inner edge (17D) of the fixed part (17) is located further outward in the horizontal direction (W) than the inner edge (31D) of the constriction part (31), which is the outer edge of the absorbent core (30) in the area where the constriction part (31) is installed, the entire upright part (16) and the fixed part (17) rise starting from the inner edge of the constriction part (31). In the area where the constriction (31) is installed, the horizontal length (W) of the absorption core (30) is relatively short, so there is a risk that body fluid may be guided to the outer side in the horizontal direction rather than the absorption core, but the height at which the erection part (16) rises can be secured so that leakage can be suppressed.

[0066] Next, a cat diaper (1X) according to a modified example is described with reference to FIGS. 6 and FIGS. 7. In addition, in the description of the modified example below, configurations similar to the above-described embodiment are omitted by using the same reference numerals. FIG. 6 is a plan view of the cat diaper (1X) according to the modified example seen from the skin side, and FIG. 7 is a plan view of the absorbent core (30X) according to the modified example. The inner edge (31D) of the constriction (31) of the absorbent core (30X) according to the modified example is installed in a certain range extending in the longitudinal direction (Z). The constriction (31) according to the modified example has a ventral end edge (311) located on the ventral side, a dorsal end edge (312) located on the dorsal side, and a side edge (33) connecting the inner edge (31D). The side edge (33) has a ventral edge (F33) extending from the lateral edge (311) to the inner edge (31D) and a dorsal edge (R33) extending from the dorsal edge (312) to the inner edge (31D). The ventral edge (F33) and the dorsal edge (R33) are not symmetric with respect to a horizontal imaginary line extending in the horizontal direction (W). The ventral edge (F33) has a portion (CF33) extending dorsally from the lateral edge (311) in a curved direction and a portion (SF33) connecting the portion extending in a curved direction (CF33) and the inner edge (31D) in a straight line. The portion extending in a straight line (SF33) is inclined at an angle α with respect to the vertical direction (Z). The angle α is smaller than the angle of inclination with respect to the vertical direction (Z) of the portion connecting in a curved direction (CF33) and is an angle approximately close to 0 degrees (5 degrees or less). Also, in the ventral edge (F33), the length in the vertical direction (Z) of the portion (SF33) that extends in a straight line is longer than the length in the vertical direction (Z) of the portion (CF33) that connects in a curved line.Also, the dorsal edge (R33) extends in a curved manner from the dorsal edge (312) toward the inner edge (31D) and does not have a portion that extends in a straight line.

[0067] Although the present invention has been described in detail using the embodiments described above, it is clear to those skilled in the art that the present invention is not limited to the embodiments described in this specification. The present invention may be practiced in modified and altered forms without departing from the spirit and scope of the invention as defined by the claims. Accordingly, the description in this specification is intended for illustrative purposes only and does not imply any limiting meaning to the present invention.

[0068] In addition, the entire contents of Japanese Patent Application No. 2019-212723 filed on November 25, 2019 and the entire contents of Japanese Patent Application No. 2019-212729 are incorporated into this specification by reference.

[0069] Industrial applicability

[0070] We can provide cat diapers that are difficult to slip off when worn. Explanation of the symbols

[0071] 1, 1X: Cat diaper 2: Main body 5: Leg circumference opening 51: Ventral side 52: Dorsal side 53: Longitudinal side 10: Surface sheet 15: Foul gather 16: Standing part 17: Fixed part 20: Backing sheet 30, 30X: Absorbent core F30: Ventral outer edge R30: Dominant outer edge 31: Narrow section 311: Edge of the base 312: Edge of the base 70: Tail hole 71: Hole main body 72: Slit part 90: Fastening tape RF30: Ventral area RR30: Dorsal region S1: Ventral region S2: Dorsal area S3: Benign area T: Thickness direction W: Horizontal direction Z: Vertical direction

Claims

Claim 1 A cat diaper having a transverse direction arranged along the circumference of the cat's body, a longitudinal direction perpendicular to the transverse direction and extending from the ventral side to the dorsal side of the cat, a main body portion having an absorbent core and extending across the ventral area, the groin area, and the dorsal area, and a fastening tape extending outwardly in the transverse direction from the main body portion and joining the ventral area and the dorsal area, wherein the absorbent core has a constriction portion that narrows inward in the transverse direction, and the ventral end edge at the inner edge of the transverse direction of the constriction portion is located dorsally relative to the center of the longitudinal direction of the absorbent core. Claim 2 A cat diaper according to claim 1, wherein the constriction portion has a ventral end edge located on the ventral side, a dorsal end edge located on the dorsal side, and a lateral edge connecting the inner edge, and a virtual line extending in the longitudinal direction passing through the transverse center of the constriction portion and also passing through the ventral end edge and a first intersection point where the ventral edge extending from the ventral end edge to the inner edge intersects the ventral edge, and a second intersection point where the virtual line intersects the dorsal edge extending from the dorsal end edge to the inner edge intersects the dorsal edge, and the distance between the first intersection point and the second intersection point where the virtual line intersects the dorsal edge extending from the dorsal end edge to the inner edge is less than 40% of the longitudinal length of the absorbent core. Claim 3 A cat diaper according to claim 2, wherein the distance between the ventral outer edge of the absorbent core located on the ventral side and the first intersection point is longer than the distance between the dorsal outer edge of the absorbent core located on the dorsal side and the second intersection point. Claim 4 A cat diaper according to claim 1 or 2, wherein the absorbent core has a ventral region located ventrally above the longitudinal center of the absorbent core and a dorsal region located dorsally above the longitudinal center of the absorbent core, and the area of ​​the ventral region is larger than the area of ​​the dorsal region. Claim 5 A cat diaper according to claim 1 or 2, wherein the absorbent core has a ventral region located ventral to the longitudinal center of the absorbent core and a dorsal region located dorsal to the longitudinal center of the absorbent core, and the transverse length of the absorbent core at the inner edge of the constriction is 50% or less of the maximum transverse length of the absorbent core in the dorsal region. Claim 6 A cat diaper according to claim 1 or 2, wherein a tail hole is formed in the main body portion, and the maximum length in the transverse direction of the tail hole is greater than or equal to the length in the transverse direction of the absorbent core at the inner edge of the constriction portion. Claim 7 A cat diaper according to claim 1 or 2, having a core wrap covering the skin-facing surface and the non-skin-facing surface of the absorbent core, and having an overlapping portion where the core wraps overlap in the area overlapping with the constriction portion. Claim 8 A cat diaper according to claim 1 or 2, having an upright leak-proof gather located on the skin side rather than the absorbent core, wherein the leak-proof gather has an upright portion capable of standing and a fixed portion located on the outer side in the transverse direction rather than the upright portion and serving as the upright point of the upright portion, and the inner edge of the fixed portion is located on the outer side in the transverse direction rather than the inner edge of the constriction portion. Claim 9 A cat diaper according to claim 1 or 2, wherein the longitudinal length of the inner edge of the constriction is 30% or less of the longitudinal length of the absorbent core. Claim 10 A cat diaper having a transverse direction arranged along the circumference of the cat's torso, a longitudinal direction perpendicular to the transverse direction and extending from the ventral side to the dorsal side of the cat, a main body portion having an absorbent core and extending across the ventral area, the under-groin area, and the dorsal area, a leg circumference opening arranged around the cat's legs, and a fastening tape extending outwardly in the transverse direction from the main body portion and joining the ventral area and the dorsal area, wherein the absorbent core has a constriction portion that narrows inward in the transverse direction, and the main body portion has a tail hole formed therein, and the maximum length in the transverse direction of the tail hole is greater than or equal to the length in the transverse direction of the absorbent core at the inner edge of the constriction portion, and the leg circumference opening has a ventral side extending inward in the transverse direction from the outer edge of the main body portion in the ventral side, a dorsal side extending inward in the transverse direction from the outer edge of the main body portion in the dorsal side, and the A cat diaper characterized by connecting the ventral side and the dorsal side and having a longitudinal side extending in the longitudinal direction, wherein if the longitudinal length of the ventral side is a and the transverse length of the ventral side is b, then a < b is satisfied. Claim 11 A cat diaper having a transverse direction arranged along the circumference of the cat's torso, a longitudinal direction perpendicular to the transverse direction and extending from the ventral side to the dorsal side of the cat, a main body portion having an absorbent core and extending across the ventral area, the under-groin area, and the dorsal area, a leg circumference opening arranged around the cat's legs, and a fastening tape extending outwardly in the transverse direction from the main body portion and joining the ventral area and the dorsal area, wherein the absorbent core has a constriction portion that narrows inwardly in the transverse direction, and the ventral end edge at the inner edge in the transverse direction of the constriction portion is located dorsally relative to the center in the longitudinal direction of the absorbent core, and the ventral end edge at the inner edge in the transverse direction of the constriction portion is located dorsally relative to the center in the longitudinal direction of the constriction portion, and the leg circumference opening has a ventral side extending inwardly in the transverse direction from the outer edge of the main body portion in the ventral side, and A cat diaper characterized by having a dorsal side extending inward in the horizontal direction from the outer edge of the main body part on the dorsal side, and a vertical side extending in the vertical direction connecting the ventral side and the dorsal side, wherein if the vertical distance between the fastening tape and the vertical side is c and the horizontal length of the ventral side is b, then c < b is satisfied. Claim 12 A cat diaper according to claim 10 or 11, wherein the longitudinal length of the ventral side is a and the longitudinal length of the main body is d, and the ratio of a to d is 10% or less. Claim 13 A cat diaper according to claim 10 or 11, wherein the fastening tape is disposed in the ventral region and at least a portion of a target part to which the fastening tape is fixedly attached is installed in the dorsal region, and if the longitudinal distance between the ventral side and the target part is e and the longitudinal length of the main body part is d, the ratio of e to d is 60% or more. Claim 14 A cat diaper according to claim 10 or 11, wherein the main body part is provided with a tail hole having a hole main body part through which a cat's tail can be inserted and passed, the fastening tape is disposed in the ventral region, and at least a part of a target part to which the fastening tape is fixedly attached is provided in the dorsal region, and if the longitudinal distance between the dorsal end edge of the tail hole and the target part is f and the longitudinal length of the main body part is d, the ratio of f to d is 20% or more. Claim 15 A cat diaper according to claim 10 or 11, wherein the main body part is provided with a tail hole having a hole main body part through which a cat's tail can be inserted and passed, the fastening tape is disposed in the ventral region, and at least a part of a target part to which the fastening tape is fixedly attached is provided in the dorsal region, and if the longitudinal distance between the ventral side and the target part is e and the longitudinal maximum length of the hole main body part is g, the ratio of g to e is 3.50% or less. Claim 16 A cat diaper according to claim 10 or 11, wherein the main body portion has a tail hole formed therein having a hole portion through which a cat's tail can be inserted and passed, and a slit portion for enlarging the dimensions of the tail hole, the fastening tape is disposed in the ventral area, and a target portion to which the fastening tape is fixedly attached is installed in the dorsal area, and if the longitudinal distance between the ventral side and the target portion is e and the maximum longitudinal length of the tail hole is h, the ratio of h to e is 5.5% or less. Claim 17 A cat diaper according to claim 10 or 11, wherein the main body part is provided with a tail hole having a hole main body part through which a cat's tail can be inserted and passed, and the ratio of the maximum length in the horizontal direction of the hole main body part to the maximum length in the horizontal direction of the absorbent core is 35% or more. Claim 18 A cat diaper according to claim 6, wherein the tail hole is positioned dorsally to the outer edge of the absorbent core located dorsally to the absorbent core. Claim 19 A cat diaper according to claim 17, wherein the tail hole is positioned dorsally to the outer edge of the absorbent core located dorsally to the absorbent core. Claim 20 A cat diaper according to claim 10 or 11, wherein the absorbent core has a constriction that is recessed inward in the transverse direction, at least a portion of the ventral edge extending toward the ventral side from the transverse inner edge of the constriction extends inward in the transverse direction from the ventral side toward the inner edge, and the longitudinal side of the leg circumference opening extends outward in the transverse direction from the ventral side toward the dorsal side. Claim 21 A cat diaper according to claim 1, wherein the ventral end edge at the inner edge in the transverse direction of the constriction is located dorsally to the center in the longitudinal direction of the constriction.

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