Pet diaper

Abstract

A pet diaper (1) has a body portion (2). The body portion (2) has a surface sheet (3), a back sheet (4), and an absorbent core (11). At least one opening or at least one cut portion (91) for forming the at least one opening is provided at a position not overlapping the absorbent core (11) in the body portion (2), the at least one opening or at least one cut portion (91) not allowing a tail of a pet to pass therethrough in a worn state and allowing an internal space opposite to the surface sheet (3) to have improved air permeability.

Description

Technical Field

[0001] This invention relates to diapers for pets. Background Technology

[0002] Pet diapers worn on pets such as dogs and cats are known in the past. For example, Patent Document 1 discloses a pet diaper with a tail-passing part (cut) for passing the pet's tail through a part closer to the back than the absorbent core.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2012-205542 Summary of the Invention

[0006] The problem the invention aims to solve

[0007] Generally, pet diapers with absorbent cores designed to absorb pet urine have a structure that covers not only the pet's groin but also their back to prevent leakage caused by misalignment. Therefore, there is still room for improvement in terms of comfort when wearing them, especially regarding the breathability of the pet diapers.

[0008] Therefore, one objective of the present invention is to provide a pet diaper that both suppresses leakage caused by misalignment of the diaper and improves breathability when worn.

[0009] Solution for solving the problem

[0010] One aspect of the present invention is a pet diaper that can be worn on a pet in a manner that covers at least the pet's waist circumference. The pet diaper includes a body portion having, in a worn state, the following features along the width direction of the pet's waist circumference and in a front-back direction orthogonal to the width direction: a surface sheet disposed facing the pet's skin in the worn state; a back sheet disposed on the side opposite to the pet's skin in the worn state; and an absorbent core disposed between the surface sheet and the back sheet. At a position in the body portion that does not overlap with the absorbent core, at least one opening is provided, in the worn state, through which the pet's tail does not pass and to improve the breathability of the internal space opposite the surface sheet, or at least one opening forming portion for forming at least one opening.

[0011] The effects of the invention

[0012] The present invention provides a pet diaper that both suppresses leakage caused by misalignment and improves breathability when worn. Attached Figure Description

[0013] Figure 1 This is a top view of one embodiment of a pet diaper, viewed from the side of the skin.

[0014] Figure 2 Viewed from the non-skin side Figure 1 A top view of pet diapers.

[0015] Figure 3 It is along Figure 1 A cross-sectional view of a pet diaper along line III-III.

[0016] Figure 4 It is along Figure 1 A cross-sectional view of a pet diaper with IV-IV lines.

[0017] Figure 5 This is an example of how a pet wears a diaper.

[0018] Figure 6 It is a schematic representation along Figure 5 A diagram showing a portion of a pet's body and a portion of a pet diaper in a cross section along line VI-VI.

[0019] Figure 7 This is a top view of the fourth variation of the pet diaper, viewed from the non-skin side.

[0020] Figure 8 This is a top view of the fifth variation of the pet diaper, viewed from the non-skin side.

[0021] Figure 9 This is a diagram illustrating one example of the wearing status of a pet diaper in the sixth variation.

[0022] Figure 10 Viewed from the side of the skin Figure 9 A top view of pet diapers.

[0023] Figure 11 Viewed from the non-skin side Figure 9 A top view of pet diapers.

[0024] Figure 12 It is along Figure 10 A cross-sectional view of an AA-lined absorbent pet item.

[0025] Figure 13 It is along Figure 10 A cross-sectional view of a BB line pet absorbent item.

[0026] Figure 14 It is along Figure 10 A cross-sectional view of a CC-line pet absorbent item. Detailed Implementation

[0027] Based on the description in this specification and the accompanying drawings, at least the following methods 1 to 36 can be identified.

[0028] (Method 1)

[0029] A pet diaper that can be worn on a pet in a manner that at least covers the pet's waist circumference, wherein,

[0030] The pet diaper has a main body portion, which has a width direction along the pet's waist circumference and a front-back direction orthogonal to the width direction when the pet diaper is worn on the pet.

[0031] The body portion has:

[0032] A surface sheet, in the worn state, is positioned facing the pet's skin;

[0033] A back panel, in the worn state, is positioned on the side opposite to the pet's skin; and

[0034] An absorbent core is disposed between the surface sheet and the back sheet.

[0035] At a location in the body portion that does not overlap with the absorbent core, at least one opening is provided such that the pet's tail does not pass through in the wearing state and that the breathability of the internal space opposite the surface sheet is improved, or at least one opening forming portion is provided for forming the at least one opening.

[0036] The aforementioned pet diaper is worn on the pet in a manner that covers the pet's waist. This appropriately suppresses wear misalignment. Furthermore, in addition to the opening (tail hole) formed to allow the pet's tail to pass through when worn, the pet diaper also has an opening (or an opening forming part for forming this opening) that improves the breathability of the internal space. By forming such an opening, breathability is improved when worn. Moreover, since this opening is formed in a position that does not overlap with the absorbent core, the opening does not obstruct the absorbency of the pet diaper, and urine absorbed by the absorbent core will not leak out through this opening. Therefore, according to the aforementioned pet diaper, both urine leakage caused by wear misalignment and breathability when worn are both suppressed.

[0037] (Method 2)

[0038] According to the pet diaper of method 1, a tail-passing part is provided in the main body for the pet's tail to pass through.

[0039] The at least one opening has a different shape or size than the tail passage.

[0040] According to method 2, the opening designed to improve breathability and the tail passage can be easily distinguished based on their shape or size. As a result, it prevents the wearer (such as the pet owner) from accidentally inserting the pet's tail into the ventilation opening when wearing the pet diaper.

[0041] (Method 3)

[0042] According to method 2, the size of the at least one opening is smaller than the size of the opening formed at the tail passage.

[0043] According to method 3, the two can be easily distinguished based on the difference in size between the ventilation opening and the opening formed by the tail passing through the part.

[0044] (Method 4)

[0045] According to any of the methods 1 to 3, the pet diaper has a cut-off shape obtained by cutting off a portion of the body portion.

[0046] According to method 4, even when the opening is deformed while being worn, it is not easy to close the opening, so it can maintain a high level of breathability.

[0047] (Method 5)

[0048] According to any one of the methods 1 to 3, the pet diaper has at least one opening formed by a cut.

[0049] According to method 5, since there is no edge trimming during the manufacturing of pet diapers, the manufacturing of pet diapers becomes easier.

[0050] (Method 6)

[0051] According to method 5, the pet diaper has a curved shape in the cut.

[0052] According to method 6, the opening can be easily opened while the garment is being worn.

[0053] (Method 7)

[0054] According to method 5 or 6, the pet diaper has a shape that convexes outward in the width direction.

[0055] According to method 7, the opening can be easily opened while wearing the garment, and breathability can be effectively improved.

[0056] (Method 8)

[0057] According to any of the methods 5 to 7, the pet diaper has a plurality of independently arranged cuts on the main body.

[0058] According to method 8, multiple openings corresponding to each of the multiple cuts can be formed. Therefore, compared with the case of forming a single large opening, the risk of damage to the main body due to jamming or other reasons can be reduced, and the overall opening area can be ensured, achieving high air permeability.

[0059] (Method 9)

[0060] According to any of the methods 1 to 8, the pet diaper is provided in a position that is more back-side than the absorbent core.

[0061] When worn, the area on the back side of the absorbent core is located on the upper side (opposite to the pet's urinary opening). Therefore, by forming a ventilation opening in the area on the back side of the absorbent core, the risk of urine leakage from this opening can be reduced. Furthermore, the back of pets such as dogs and cats (i.e., the part of the body opposite the back side of the absorbent core) is particularly prone to heat and stuffiness due to the presence of a lot of fur; however, by providing an opening at a location corresponding to this area, the improved breathability due to the opening can be enhanced.

[0062] (Method 10)

[0063] According to the pet diaper of method 9, a tail-passing part is provided in the main body for the pet's tail to pass through.

[0064] The at least one opening is positioned on the back side of the tail passage portion.

[0065] According to method 10, the effects described in method 9 can be obtained more effectively.

[0066] (Method 11)

[0067] According to method 9 or 10, the pet diaper has a side sheet forming a leg-side pleat, which is fixed at both ends in the front-back direction and the portion between the two ends contracts in the front-back direction, thereby enabling it to stand up.

[0068] The opening is positioned closer to the back side than the back side end of the two ends of the leg-side pleat.

[0069] According to method 11, the effects described in method 9 can be obtained more effectively.

[0070] (Method 12)

[0071] According to any one of the embodiments 1 to 11, the pet diaper further comprises: a pair of fastening tongues extending outward from both ends of the body portion in the width direction; and

[0072] The target portion, which is disposed in the area of ​​the body portion on the back side of the pair of fastening tabs, engages with the pair of fastening tabs in the wearing state.

[0073] The at least one opening is configured only in the front-rear direction at a position closer to the ventral side than the target portion.

[0074] According to method 12, since the ventilation opening is formed in a way that does not overlap with the target part, it is possible to prevent the engagement strength between the fastening tongue and the target part from being reduced due to the opening.

[0075] (Method 13)

[0076] According to any one of methods 1 to 12, the pet diaper further comprises: a pair of fastening tongues extending outward from both ends of the body portion in the width direction; and

[0077] The target portion, which is disposed in the area of ​​the body portion on the back side of the pair of fastening tabs, engages with the pair of fastening tabs in the wearing state.

[0078] The pair of fastening tongues are provided on each of a pair of protrusions, which extend outward in the width direction from the region in the body portion where the absorbent core is disposed.

[0079] The at least one opening is disposed on at least one of the pair of protrusions.

[0080] When worn, the pair of fastening tabs are stretched along the width and engaged with the target area, causing the protrusion to bend and fit snugly against the pet's body. According to method 13, because the opening configured in such a protrusion is easy to open when worn, the improved breathability caused by the opening can be enhanced.

[0081] (Method 14)

[0082] According to the pet diaper of method 13, the at least one opening has: a first opening disposed on one side of the pair of protrusions, and a second opening disposed on the other side of the pair of protrusions.

[0083] A telescopic member is provided in the area between the first opening and the second opening of the main body. The telescopic member is fixed to the main body in a state of elongation along the width direction and extends in the width direction.

[0084] According to method 14, since the openings (first opening and second opening) located on the protrusion are easily opened further when the telescopic member contracts in the width direction during the wearing state, the effect of the improved breathability caused by the opening can be further enhanced.

[0085] (Method 15)

[0086] According to any one of the embodiments 1 to 14, the pet diaper further comprises: a pair of fastening tongues extending outward from both ends of the body portion in the width direction; and

[0087] The target portion, which is disposed in the area of ​​the body portion on the back side of the pair of fastening tabs, engages with the pair of fastening tabs in the wearing state.

[0088] The pair of fastening tongues are provided on each of a pair of protrusions, which extend outward in the width direction from the region in the body portion where the absorbent core is disposed.

[0089] The at least one opening is disposed between the pair of fastening tongues.

[0090] When the pair of fastening tabs are stretched and engaged with the target area in the width direction while the pet is wearing it, the area between the pair of fastening tabs (i.e., the part with the opening) bends and fits snugly against the pet's body. According to method 15, because the opening in such an area is easy to open when the pet is wearing it, the effect of improved breathability caused by the opening can be enhanced.

[0091] (Method 16)

[0092] According to any one of the embodiments 1 to 14, the pet diaper further comprises: a pair of fastening tongues extending outward from both ends of the body portion in the width direction; and

[0093] The target portion, which is disposed in the area of ​​the body portion on the back side of the pair of fastening tabs, engages with the pair of fastening tabs in the wearing state.

[0094] The at least one opening is positioned where the body overlaps with the substrate of the fastening tongue.

[0095] According to method 16, by forming an opening in the thick portion where the substrate of the main body and the fastening tongue overlap, especially in the portion where air permeability is obstructed and it is prone to stuffiness, the effect of improving air permeability caused by the opening can be improved.

[0096] (Method 17)

[0097] According to any of the embodiments 1 to 16, the pet diaper has a side sheet forming a leg-side pleat, which is fixed at both ends in the front-back direction and the portion between the two ends is contracted in the front-back direction, thereby enabling it to stand up.

[0098] The opening is positioned on the outer side of the leg-side pleat in the width direction, beyond the point where the leg side pleat is raised.

[0099] According to method 17, since an opening is formed on the outer side of the fulcrum of the leg side pleat (standing part) that forms a barrier against excrement from the pet, it not only prevents urine leakage caused by the opening, but also improves the breathability caused by the opening.

[0100] (Method 18)

[0101] According to any of the methods 1 to 17, the pet diaper has a tail-passing part in the main body for the pet's tail to pass through.

[0102] The opening is positioned outward in the width direction from the tail passage portion.

[0103] According to method 18, by configuring an opening at a position offset outward in the width direction from the tail passage portion, the area in the body portion where the opening is formed can bend along the pet's body when worn. As a result, because the opening is easy to open, breathability can be appropriately improved.

[0104] (Method 19)

[0105] According to any of the methods 1 to 18, in the case where the body part is divided into 4 parts in the front-back direction, the at least one opening and the tail passage part are provided in the 3rd part from the ventral side.

[0106] According to method 19, when worn, at least one opening is formed in the part corresponding to the back of the pet (the third part from the ventral side), which is particularly prone to getting hot, so that breathability can be appropriately improved.

[0107] (Method 20)

[0108] According to any of the embodiments 1 to 19, the pet diaper has a side sheet forming a leg-side pleat, which is fixed at both ends in the front-back direction and the portion between the two ends is contracted in the front-back direction, thereby enabling it to stand up.

[0109] The at least one opening is configured at a position overlapping the side sheet.

[0110] According to method 20, regarding the opening positioned to overlap with the side sheet, the rigidity of the portion of the side sheet corresponding to the opening is increased, thus making it easier to open when worn. As a result, breathability is appropriately improved.

[0111] (Method 21)

[0112] According to any of the embodiments 1 to 20, the pet diaper is provided with a leg telescopic member, which is fixed to the body portion along the outer edge of the body portion in the width direction in a state of elongation in the front-rear direction, and extends along the front-rear direction.

[0113] The distance between the leg telescopic member and the at least one opening in the width direction is smaller than the diameter of the smallest circle containing the at least one opening.

[0114] When worn, the area with the leg retractable member can easily fit snugly against the pet's body by retracting the leg retractable member. According to method 21, by configuring an opening near such an area (i.e., a location that meets the aforementioned distance requirement), the opening can be easily opened, thereby appropriately improving breathability.

[0115] (Method 22)

[0116] According to any of the embodiments 1 to 21, the pet diaper is provided with a leg telescopic member, which is fixed to the body portion along the outer edge of the body portion in the width direction in a state of elongation in the front-rear direction, and extends along the front-rear direction.

[0117] The at least one opening is positioned in the width direction at a location that is more inward than the leg telescopic member.

[0118] When worn, the portion of the leg extension member that is closer to the inside in the width direction easily fits snugly against the pet's body. According to method 22, by forming an opening in such an area, the effect of improved breathability caused by the opening can be enhanced.

[0119] (Method 23)

[0120] According to any of the methods 1 to 22, the pet diaper has the following characteristics:

[0121] The outer sheet is formed of a nonwoven fabric constituting the outermost surface of the body portion; and

[0122] An inner sheet is disposed between the outer sheet and the absorbent core.

[0123] The at least one opening extends through the inner sheet in the thickness direction of the body portion, which is orthogonal to the width direction and the front-back direction.

[0124] The inner sheet of the back sheet, which is positioned adjacent to the absorbent core, is typically made of a material with low breathability (such as a membrane) to prevent leakage. According to method 23, by forming an opening through such an inner sheet, breathability during wear can be effectively improved.

[0125] (Method 24)

[0126] According to method 23, the pet diaper has the following characteristics:

[0127] The outer sheet is formed of a nonwoven fabric constituting the outermost surface of the body portion; and

[0128] An inner sheet is disposed between the outer sheet and the absorbent core.

[0129] The at least one opening extends through at least the surface sheet and the inner sheet in the thickness direction.

[0130] In method 24, the outer sheet is formed of non-woven fabric, thus possessing a certain degree of breathability. Therefore, by forming an opening that penetrates at least through the surface sheet and the inner sheet, air can be allowed to pass through the opening and the non-woven fabric (outer sheet) to the inner space opposite the surface sheet and the outer space opposite the back sheet. Based on the above, breathability during wear can be effectively improved.

[0131] (Method 25)

[0132] According to method 23 or 24, the pet diaper has an opening that extends through the outer sheet in the thickness direction.

[0133] According to method 25, by forming an opening through the outer sheet made of nonwoven fabric, the breathability during wear can be further improved.

[0134] (Method 26)

[0135] According to any of the methods 1 to 25, the pet diaper has the following characteristics:

[0136] The outer sheet is formed of a nonwoven fabric constituting the outermost surface of the body portion; and

[0137] An inner sheet is disposed between the outer sheet and the absorbent core.

[0138] The at least one opening has: a third opening penetrating the surface sheet in the thickness direction of the body portion orthogonal to the width direction and the front-back direction, and a fourth opening penetrating the inner sheet in the thickness direction.

[0139] The third opening and the fourth opening are configured in a manner that do not overlap in the thickness direction.

[0140] According to method 26, breathability can be improved during wear through the third and fourth openings, and the overall material strength (thickness) can be appropriately maintained for the main body.

[0141] (Method 27)

[0142] According to any of the methods 1 to 26, the pet diaper has a transverse shape having a length direction and a short side direction, and the body is worn by wrapping around the pet's waist in the length direction.

[0143] According to method 27, in a rolled-up pet diaper, breathability can be improved during wear through an opening (or an opening forming part for forming the opening).

[0144] (Method 28)

[0145] According to the pet diaper of method 27, the at least one opening or the at least one opening forming portion is provided in the region of the area where the absorbent core is disposed in the short side direction.

[0146] In a roll-up pet diaper, the area in the main body where the absorbent core is located along the short side becomes a relatively rigid area due to the influence of the absorbent core. By providing an opening (or an opening forming part that forms the opening) in such a rigid area, the opening can be easily expanded when the diaper is worn, thus effectively improving breathability when worn.

[0147] (Method 29)

[0148] According to the pet diaper of method 27 or 28, the main body has a fixing member disposed on one of the two sides of the absorbent core in the longitudinal direction, i.e., a first side, and in the wearing state, a portion of the main body on a second side opposite to the first side is fixed.

[0149] The at least one opening or the at least one opening forming portion is provided in the area within the range where the fixing member is disposed in the short side direction.

[0150] In a roll-up pet diaper, the area in the main body where the fixing member is located in the short side direction becomes a relatively rigid area due to the influence of the fixing member. By providing an opening (or an opening forming part that forms the opening) in such a rigid area, the opening can be easily expanded when the diaper is worn, thus effectively improving breathability when worn.

[0151] (Method 30)

[0152] According to the pet diaper of method 29, the portion of the second side of the body has a non-opening area, which is not provided with the at least one opening or the at least one opening forming part, and the non-opening area has a width longer than the width of the fixing member in the length direction.

[0153] According to method 30, since the fixing member can be fixed to the non-opening area in a way that prevents the fixing member from protruding from the non-opening area, the overlap between the fixing member and the opening (which can be provided outside the non-opening area in the second side portion of the main body) can be suppressed. Therefore, the fixing strength of the fixing member relative to the second side portion of the main body can be prevented from decreasing due to the overlap of the opening and the fixing member, and the air permeability in the wearing state achieved through the opening can be prevented from being obstructed by the fixing member.

[0154] (Method 31)

[0155] According to method 29 or 30, in the pet diaper, the at least one opening or the at least one opening forming portion is provided on the second side of the body portion.

[0156] The width of the at least one opening or the at least one opening forming portion in the length direction of the portion provided on the second side is longer than the width of the fixing member in the length direction.

[0157] According to method 31, in the wearing state, even when the fixing member is fixed relative to the second side of the main body by overlapping the fixing member with the opening (or the opening formed by the opening forming part), it can be ensured that the entire area of ​​the fixing member in the short side direction is continuously formed in the region where the fixing member and the second side of the main body are fixed. Therefore, it is possible to prevent the fixing strength of the fixing member from being reduced due to the opening provided in the second side of the main body.

[0158] (Method 32)

[0159] According to method 29 or 30, in the pet diaper, the at least one opening or the at least one opening forming portion is provided on the second side of the body portion.

[0160] The width of the at least one opening or the at least one opening forming portion in the length direction of the portion provided on the second side is shorter than the width of the fixing member in the length direction.

[0161] According to method 32, in the wearing state, the entire opening of the part provided on the second side of the main body (or the opening formed by the opening forming part) can be prevented from being covered by the fixing member. Therefore, the situation where the fixing member obstructs the breathability in the wearing state (i.e., the breathability achieved by the opening formed on the second side of the main body) can be suppressed.

[0162] (Method 33)

[0163] According to any of the embodiments 27 to 32, the pet diaper has a fixing member disposed on one of the two sides of the absorbent core in the longitudinal direction, i.e., a first side, and in the wearing state, a portion of the body portion on a second side opposite to the first side is fixed.

[0164] The at least one opening or the at least one opening forming portion is located in the region between the absorbent core and the fixing member in the portion of the first side of the body portion.

[0165] According to method 33, when worn, at least one opening is formed in a position opposite to the side of the pet's back, and in an area where the number of overlapping sheets of thin material tends to increase (i.e., the part that tends to overlap with the second side of the main body, and is therefore particularly prone to stuffiness), so that breathability can be appropriately improved.

[0166] (Method 34)

[0167] According to any of the embodiments 27 to 33, the pet diaper further includes a waistband elastic member, which is fixed to the body portion in an elongated state in the length direction, and the waistband elastic member extends along both sides of the body portion in the length direction.

[0168] The at least one opening or the at least one opening forming portion is provided in the region along the length direction within which the body portion can be extended or retracted by means of the waist-length telescopic member.

[0169] According to method 34, in the wearing state, the opening provided in the main body (or the opening formed by the opening forming part) is properly separated (freed) from the pet's body by the extension and retraction of the waist extension member, thereby further improving breathability.

[0170] (Method 35)

[0171] According to any of the embodiments 1 to 34, the pet diaper in the body portion that overlaps with the absorbent core is not provided with an opening that is the same as the at least one opening or an opening forming portion that is the same as the at least one opening forming portion.

[0172] According to method 35, by completely eliminating the ventilation opening (or the opening forming part) in the area of ​​the body that overlaps with the absorbent core, it is possible to reliably prevent the opening from hindering the absorbency of the pet diaper.

[0173] [Implementation Method]

[0174] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Furthermore, in the following description, the same reference numerals are used for the same or equivalent elements, and repeated descriptions are omitted.

[0175] Reference Figures 1-4 The structure of a pet diaper 1 according to one embodiment will be described. Figure 1 This is a top view of pet diaper 1 from the skin side. Figure 2 This is a top view of the pet diaper 1 from the non-skin side. Figure 1 and Figure 2 This refers to the pet diaper 1 in its stretched state, where it is stretched until no wrinkles are formed. Figure 3 For along Figure 1 A cross-sectional view of pet diapers 1 along line III-III. Figure 4 For along Figure 1A cross-sectional view of pet diaper 1 along line IV-IV. Pet diaper 1 is a diaper worn on a pet. In this specification, "pet" broadly includes vertebrates and invertebrates, typically including dogs, cats, rabbits, hamsters, etc. As an example, pet diaper 1 is a dog diaper.

[0176] In this embodiment, the "skin side" is the side facing the pet's skin when the pet diaper 1 is worn on the pet. The "non-skin side" is the side facing away from the pet's skin when worn. Figure 1 As shown, the pet diaper 1 has: a length direction Y (front-to-back direction) connecting the pet's abdomen to its back; a width direction X orthogonal to the length direction Y and disposed along the pet's waistline; and a thickness direction Z orthogonal to both the length direction Y and the width direction X. Figure 3 , Figure 4 As shown, the thickness direction Z is the stacking direction of the various materials constituting the pet diaper 1 (the surface sheet 3, the back sheet 4, the absorbent body 10, etc., described later). The straight line passing through the center of the width direction X of the pet diaper 1 and parallel to the length direction Y is referred to as the "center line CL".

[0177] The pet diaper 1 has a body portion 2 extending along the length direction Y and the width direction X. The body portion 2 absorbs urine excreted by the pet after wearing the pet diaper 1. The body portion 2 is divided into a ventral portion 21 located on the ventral side of the pet when worn, a dorsal portion 22 located on the dorsal side of the pet when worn, and a crotch portion 23 located between the ventral portion 21 and the dorsal portion 22. The ventral portion 21, the crotch portion 23, and the dorsal portion 22 are arranged along the length direction Y from the ventral side (front) of the pet toward the dorsal side (rear). For example, when the body portion 2 is divided into 4 equal parts along the length direction Y, the area of ​​the part closest to the ventral side corresponds to the ventral portion 21, the area of ​​the part closest to the dorsal side corresponds to the dorsal portion 22, and the areas of the two parts located between the ventral portion 21 and the dorsal portion 22 (i.e., the central part of the body portion 2 in the length direction Y) correspond to the crotch portion 23.

[0178] The main body 2 has: a surface sheet 3, a back sheet 4, a pair of side sheets 5, and an absorber 10.

[0179] The surface sheet 3 is positioned facing the pet's skin when worn, and is a liquid-permeable sheet facing the pet's skin. The surface sheet 3 can be formed, for example, from a liquid-permeable nonwoven or woven fabric, a synthetic resin film with liquid-permeable pores, or a composite sheet thereof.

[0180] The back sheet 4 is a liquid-impermeable sheet disposed on the side opposite to the pet's skin when worn. The back sheet 4 can be formed, for example, of a liquid-impermeable nonwoven fabric, a synthetic resin film, or a composite sheet thereof. In this embodiment, the back sheet 4 has an outer sheet 41 (outer sheet) and a leak-proof sheet 42 (inner sheet). The outer sheet 41 is disposed further outward (on the non-skin side) than the leak-proof sheet 42, forming the outermost surface of the body portion 2. The outer sheet 41 is formed, for example, of a liquid-impermeable nonwoven fabric. The leak-proof sheet 42 is disposed between the outer sheet 41 and the absorbent core 10 (absorbent core 11), and is bonded to the outer sheet 41. The leak-proof sheet 42 is formed, for example, of a liquid-impermeable synthetic resin film.

[0181] A pair of side panels 5 form leg-side pleats (LSG) on the ventral side 21 and crotch area 23, serving as upright, leak-proof pleats. The side panels 5 can be formed from, for example, a nonwoven fabric with water-repellent or hydrophobic properties. Figure 1 , Figure 3 as well as Figure 4 As shown, each side sheet 5 is disposed on both sides of the body portion 2 in the width direction X, exposing the central portion of the surface sheet 3 in the width direction X. Each side sheet 5 extends along the length direction Y from the ventral end 2a of the body portion 2 to the dorsal end 2b of the body portion 2. Figure 3 , Figure 4 As shown, the outer edges of each side sheet 5 in the width direction X coincide with the outer edge of the back sheet 4, forming the outer edge portion 2c of the body portion 2. Furthermore, the inner portion of each side sheet 5 in the width direction X is folded towards the non-skin side. An elastic member 7, extending in the length direction Y from the folded side sheets 5 across the ventral portion 21 to the crotch portion 23, is disposed between them. The elastic member 7 is, for example, a threaded rubber.

[0182] like Figure 1 As shown, each side sheet 5 is joined (fixed) to the surface sheet 3 in a fixing part R surrounded by a single-dotted line and shaded with diagonal lines. Each fixing part R is disposed over the entire area of ​​the body part 2 in the longitudinal direction Y. Each fixing part R has: a fixing part R1 extending in the longitudinal direction Y along the outer edge of the fixing part R in the width direction X; a rectangular fixing part R2 formed at the ventral end of the fixing part R in the longitudinal direction Y; and a rectangular fixing part R3 formed at the dorsal end of the fixing part R in the longitudinal direction Y.

[0183] The standing part 5a is formed by the portion between the inner end R2a of the fixing part R2 in the length direction Y and the inner end R3a of the fixing part R3 in the length direction Y (i.e., the portion of the side sheet 5 where the elastic member 7 is disposed and not joined to the surface sheet 3). The standing part 5a is erected by the contraction of the elastic member 7, thereby functioning as the part of the leg-side ruffle LSG. More specifically, the standing part 5a is fixed by the fixing parts R2 and R3 at both ends in the length direction Y and contracts in the length direction Y, thereby forming a structure that is erected with the inner end R1a of the fixing part R1 in the width direction X as a fulcrum. That is, the end R1a of the fixing part R1 functions as the erection fulcrum of the leg-side ruffle LSG.

[0184] The absorber 10 is disposed between the surface sheet 3 and the back sheet 4. For example... Figure 3 As shown, the absorbent 10 is formed of an absorbent core 11 and a core-cladding layer 12 covering the upper and lower surfaces of the absorbent core 11. The absorbent core 11 is positioned to reach the ventral portion 21 and the crotch portion 23, but not to the dorsal portion 22. The absorbent core 11 is a component for absorbing pet urine and has liquid absorbency and liquid retention properties. The absorbent core 11 is, for example, a laminate of absorbent material such as pulverized pulp or superabsorbent polymer (SAP), or a mixture thereof. The core-cladding layer 12 is, for example, a thin paper or a nonwoven sheet. As an example, the absorbent core 11 is formed in a gourd shape (or hourglass shape) when viewed in the thickness direction Z, and the central portion of the absorbent core 11 in the length direction Y has a narrowed shape.

[0185] like Figure 1 and Figure 2 As shown, the main body 2 is provided with a tail-passing portion 6 for the pet's tail to pass through. In one example, the tail-passing portion 6 consists of one slit portion 6a and two slit portions 6b. The slit portions 6a and 6b penetrate the main body 2 along the thickness direction Z. The slit portion 6a is located at the center of the region on the back side of the absorbent core 11 in the lower crotch portion 23, in the width direction X. The slit portion 6a is formed as a curved surface (arc) extending in the width direction X along the center line CL and forming a convex shape towards the back. The two slit portions 6b are located on both sides of the center line CL, closer to and on the back side of the slit portion 6a. The two slit portions 6b are arranged in a straight line shape inclined relative to the length direction Y, with the interval between them increasing as they move from the ventral side towards the back side.

[0186] By pressing the portion of the cut portion 6a that is between each other in the width direction X, and that is closer to the ventral side of the cut portion 6a towards the non-skin side, a roughly semi-circular opening for the pet's tail to pass through is formed. Furthermore, by breaking the portion between the cut portion 6a and the two cut portions 6b in the main body 2, the cut portion 6a and the two cut portions 6b can be connected. At this time, as... Figure 2 As shown, an opening with a larger area A than the opening formed by the cut portion 6a can be formed. Thus, in this embodiment, the tail-passing portion 6 is configured such that the opening size can be adjusted (enlarged) as needed by connecting the two cut portions 6b to the cut portion 6a. Furthermore, the shape and size of the tail-passing portion 6 are not limited by this embodiment. For example, the cut portion 6b can be omitted when size adjustment is not required. In addition, the tail-passing portion 6 may not be a cut, but may be formed by an opening with a predetermined area, or it may be formed by a combination of an opening and a cut. In addition, multiple independent tail-passing portions 6 may be provided in the body portion 2. For example, a first tail-passing portion and a second tail-passing portion that can form an opening for the pet's tail to pass through may be provided in the body portion 2. As an example, the first tail-passing portion and the second tail-passing portion may be positioned approximately at the center of the width direction X of the body portion, and staggered from each other in the length direction Y.

[0187] A pair of wings F1 (protrusions) protruding outward in the width direction X are formed on both sides of the ventral side 21. Each wing F1 extends outward in the width direction X beyond the area in the main body 2 where the absorbent core 11 is disposed. Similarly, a pair of wings F2 protruding outward in the width direction X are formed on both sides of the dorsal side 22. A pair of fastening tabs 50 are provided on the pair of wings F1. A target portion 53 is provided in the area between the pair of wings F2 in the dorsal side 22.

[0188] Each fastening tongue 50 extends outward from both ends (end F1a in the width direction X) of the body portion 2 (wing F1) in the width direction X. Each fastening tongue 50 has a rectangular shape that is longer in the width direction X and is disposed near the end 2a on the ventral side of the body portion 2. Each fastening tongue 50 has a base plate 51 that engages with the wing F1 and an engaging portion 52 provided on the skin-side surface of the base plate 51. A portion of the base plate 51 is, for example, sandwiched between the side plate 5 and the back plate 4. The engaging portion 52 constitutes, for example, a planar fastener (e.g., a plurality of hook-shaped members) capable of engaging with the target portion 53.

[0189] The target portion 53 has a rectangular shape that is longer in the width direction X, and the non-skin side of the back sheet 4 (outer sheet 41) is disposed near the end 2b on the back side of the body portion 2. For example... Figure 5As shown, in the wearing state, the engaging portion 52 of a pair of fastening tongues 50 engages with the target portion 53. Figure 5 This indicates the state of pet P standing up while wearing the equipment.

[0190] The main body 2 has a pair of elastic members 8 (leg telescopic members) that contract in the longitudinal direction Y. These members are arranged extending in the longitudinal direction Y along the outer edge 2c of the main body 2 in the width direction X (in this embodiment, the portion of the outer edge 2c located in the crotch portion 23 where wings F1 and F2 are not provided). Each elastic member 8 is, for example, the same type of threaded rubber as the elastic member 7. Each elastic member 8 is fixed to the main body 2 in an extended state in the longitudinal direction Y, thereby being configured to contract in the longitudinal direction Y. In this embodiment, as... Figure 3 As shown, each elastic member 8 is disposed between the surface sheet 3 and the back sheet 4 (leak-proof sheet 42). Figure 5 As shown, in the wearing state, the outer edge 2c of the main body 2 contracts in the length direction Y through a pair of elastic members 8, so that the leg folds that fit with the leg circumference of the pet P function as leg folds.

[0191] like Figure 1 As shown, a cutting portion 9 is provided in the region between the tail-through portion 6 and the elastic member 8 in the width direction X. In this embodiment, the cutting portion 9 is provided on both sides of the center line CL in the width direction X. Each cutting portion 9 has a plurality of cut portions 91 (opening portions) with a predetermined length in the length direction Y (four on each side in this embodiment). In each cutting portion 9, the plurality of cut portions 91 are arranged in the length direction Y. Each cut portion 91 penetrates the body portion 2 along the thickness direction Z of the body portion 2.

[0192] Thus, in the pet diaper 1, at least one (in this embodiment, four on each side in the width direction X, for a total of eight) slits 91 are provided at a position that does not overlap with the absorbent core 11 in the body part 2. These slits 91 are used to form an internal space that prevents the pet's tail from passing through when the diaper is worn, and that faces the surface sheet 3 (in one example, ...). Figure 6 At least one opening 9a (refer to) improves the air permeability of the gap S shown. Figure 6 The pet diaper 1 has a cut-off portion 9 of predetermined length in the length direction Y in the area between the tail passage portion 6 and the elastic member 8 in the width direction X (in this embodiment, four cut-off portions 91 extending in the length direction Y are provided on each of the left and right sides). Therefore, as Figure 5 and Figure 6 As shown, when using pet diaper 1 (e.g.) Figure 5As shown, the pet P is standing on all fours, and an opening 9a is formed by opening the part with a cut 91, which improves the air permeability of the internal space (gap S) opposite to the surface sheet 3.

[0193] Next, the effects of the aforementioned pet diaper 1 will be explained. For example... Figure 5 and Figure 6 As shown, the pet diaper 1 is worn on the pet P in a manner that covers the waist of the pet P. This appropriately suppresses wear misalignment. Furthermore, the pet diaper 1 has a slit 91, different from the opening formed to allow the pet P's tail to pass through in the wearing state (in this embodiment, the tail-passing hole corresponding to area A formed by the tail-passing portion 6), for forming an opening 9a to improve the breathability of the internal space (gap S). By forming such an opening 9a, breathability is improved in the wearing state. Moreover, since the opening 9a is formed in a position that does not overlap with the absorbent core 11, the opening 9a does not obstruct the absorbency of the pet diaper 1, and urine absorbed by the absorbent core 11 will not leak out through the opening 9a. Therefore, according to the pet diaper 1, both urine leakage caused by wear misalignment is suppressed, and breathability is improved in the wearing state.

[0194] At least one opening 91a (in this embodiment, the opening formed by the cut portion 91; the same applies hereinafter) has a different shape or size than the tail-penetrating portion 6. Here, the opening 9a is an opening formed corresponding to the cut portion 91 (cut). That is, the opening 9a is formed by lifting a part of the body portion 2 along the cut portion 91. When the part of the body portion 2 is completely lifted along the cut portion 91, the opening 9a forms a shape different from the tail-penetrating portion 6. Figure 2 The area B shown has the largest opening area. In this embodiment, the tail-passing portion 6 is composed of one slit portion 6a and two slit portions 6b, and has a different shape and size from each opening 91a. Furthermore, even when comparing the opening 9a (area B) and the opening formed by the tail-passing portion 6 (area A), they have different shapes and sizes. Based on the above configuration, the opening 9a, which is provided to improve breathability, and the tail-passing portion 6 can be easily distinguished based on their shape or size. As a result, it can prevent the wearer (such as the pet owner) who is putting the pet diaper 1 on the pet from accidentally inserting the pet's tail into the breathable opening 9a.

[0195] At least one opening 91a is smaller than the opening formed in the tail-through portion 6. As described above, the maximum area of ​​opening 9a is as follows: Figure 2 The area shown is the opening region (region B) when a portion of the main body 2 is completely lifted along the cut section 91. In contrast, the size of the opening formed at the tail-through section 6 is... Figure 2 The area of ​​region A shown. Figure 2 As shown, the size of opening 9a (area of ​​region B) is smaller than the size of the opening formed by the tail-through portion 6 (area of ​​region A). Based on this configuration, the two openings can be easily distinguished by the difference in size between the ventilation opening 9a and the opening formed by the tail-through portion 6.

[0196] At least one opening 9a is formed by a cut portion 91 (cut). That is, as described above, the opening 9a is formed by lifting a portion of the body portion 2 along the cut portion 91 (cut). According to the above configuration, since no trimming (slices produced by cutting off a portion of the body portion 2) is generated during the manufacture of the pet diaper 1, the manufacture of the pet diaper 1 becomes easy.

[0197] Furthermore, at least one opening 9a may also have a cut-off shape that removes a portion of the body portion 2. That is, the opening 9a may also be formed by cutting off a portion of the body portion 2 having a predetermined area when viewed from the thickness direction Z. For example, the opening 9a may also be formed by cutting off a portion of the body portion 2 with a predetermined area when viewed from the thickness direction Z. Figure 2 The area B shown is formed in part of the main body 2. That is, in this embodiment, although the opening 9a is formed along the cut 91 in the wearing state by providing a cut 91 in the main body 2, the opening 9a itself (the partially cut-out opening) can also be provided in the main body 2. In this case, even if the opening 9a deforms in the wearing state, the opening 9a is not easy to close. That is, by cutting off a part of the main body 2 to form the opening 9a, even if the part of the main body 2 containing the opening 9a shrinks, the opening 9a can be kept open, and the high breathability can be maintained appropriately.

[0198] The cut portion 91 forming the opening 9a has a curved shape. According to this configuration, the opening 9a can be easily opened when worn. That is, along the curved, elongated cut portion 91, a portion of the main body 2 can be appropriately lifted.

[0199] Furthermore, such as Figure 1 and Figure 2 As shown, the cut portion 91 forming the opening 9a has a shape that protrudes outward in the width direction X. According to the above configuration, the opening 9a can be easily opened in the wearing state, and breathability can be effectively improved. For example, as in this embodiment, by positioning the cut portion 91 between the tail-passing portion 6 and the elastic member 8, and as... Figure 6 As shown, the opening 9a on the side of the back of the pet P can open in an umbrella shape. This allows air to pass laterally through the gap S from the pet P, effectively improving breathability.

[0200] The main body 2 has a plurality of independently arranged (in this embodiment, there are 8 in total, 4 on each side of the center line CL) cut portions 91. According to the above configuration, as Figure 5 As shown, in the wearing state, multiple openings 9a can be formed corresponding to each of the multiple cut portions 91. Therefore, compared with the case of forming a single large opening, the risk of damage to the main body 2 due to jamming or the like can be reduced, and the overall opening area can be ensured, achieving high breathability.

[0201] like Figure 1 and Figure 2 As shown, at least one opening 9a is disposed on the back side of the absorbent core 11. In this embodiment, since all the cut portions 91 are disposed on the back side of the absorbent core 11, all the openings 9a are formed on the back side of the absorbent core 11. In the wearing state, the area on the back side of the absorbent core 11 is located on the back side (upper side) of the position opposite to the pet's urination opening (i.e., the position overlapping with the absorbent core 11). Therefore, by forming a breathable opening 9a in the area on the back side of the absorbent core 11, the risk of urine leakage from the opening 9a can be reduced. In addition, since the back part of pets such as dogs and cats (i.e., the part opposite to the part on the back side of the absorbent core 11 in the body part 2) has a lot of fur, it is a particularly hot and humid area. However, by providing an opening 9a at a position corresponding to such an area, the effect of improving breathability caused by the opening 9a can be improved.

[0202] like Figure 1 and Figure 2 As shown, at least one opening 9a is positioned on the back side of the tail passage portion 6. That is, at least a portion of the plurality of openings 9a (in this embodiment, openings 9a formed by each of the three dorsal cut portions 91, excluding the most ventral cut portion 91, arranged in four along the length direction Y on both sides in the width direction X) includes a portion located on the back side of the tail passage portion 6. According to this configuration, the ventilation of the pet's back portion, an area particularly prone to heat buildup, can be appropriately improved.

[0203] like Figure 1 As shown, at least one opening 9a is disposed on the back side of the end R3a, which is closer to the back of both ends (end R2a and end R3a) of the leg-side ruffle LSG. In this embodiment, since all the cut portions 91 are disposed on the back side of the end R3a, all the openings 9a are formed on the back side of the end R3a. According to the above configuration, the ventilation of the area that is particularly prone to stuffiness, namely the back part of the pet, can be appropriately improved.

[0204] like Figure 2As shown, at least one opening 9a is positioned only on the ventral side of the target portion 53 in the longitudinal direction Y. That is, the cut portion 91 corresponding to all openings 9a is positioned on the ventral side of the target portion 53 and does not overlap with the target portion 53. According to the above configuration, since the ventilation openings 9a are formed in a manner that do not overlap with the target portion 53, it is possible to prevent the openings 9a from reducing the engagement strength between the fastening tongue 50 (engaging portion 52) and the target portion 53.

[0205] like Figure 1 and Figure 2 As shown, at least one opening 9a is positioned outward of the tail-passing portion 6 in the width direction X. In this embodiment, since all the cut portions 91 are positioned outward of the tail-passing portion 6 in the width direction X, all the openings 9a are formed outward of the tail-passing portion 6 in the width direction X. According to the above configuration, by positioning the openings 9a at a position offset outward of the tail-passing portion 6 in the width direction X, in the wearing state, the area in the body portion 2 where the openings 9a are formed can bend along the body of the pet P (see reference). Figure 6 As a result, because opening 9a is easy to open, breathability can be appropriately improved.

[0206] like Figure 1 As shown, at least one opening 9a and a tail-passing portion 6 are provided in the third portion from the ventral side when the main body 2 is divided into four parts in the length direction Y. That is, when the crotch portion 23 is divided into two parts, a first part 23A on the ventral side and a second part 23B on the dorsal side, a cut portion 91 corresponding to at least one opening 9a is provided in the second part 23B. In this embodiment, among the four cut portions 91 arranged in the length direction Y, the entirety of the two cut portions 91 on the ventral side and a portion of the third cut portion 91 from the ventral side are provided on the second part 23B. According to the above configuration, in the wearing state, at least one opening 9a is formed in the part corresponding to the back of the pet, which is particularly prone to overheating (i.e., the second part 23B), so that breathability can be appropriately improved.

[0207] like Figure 1 and Figure 4 As shown, at least one opening 9a is positioned overlapping the side sheet 5. In this embodiment, since all the cut portions 91 are positioned overlapping the side sheet 5, all the openings 9a are formed at positions overlapping the side sheet 5. According to this configuration, the rigidity of the portion (part of the body portion 2) corresponding to the opening 9a positioned overlapping the side sheet 5 becomes higher, making it easier to open the opening 9a when worn. As a result, breathability is appropriately improved.

[0208] like Figure 2 As shown, the distance d between the elastic member 8 in the width direction X and at least one opening 9a (here, as an example, the distance between the outer end of the cut portion 91 corresponding to the opening 9a on the ventral side in the width direction X and the elastic member 8) is smaller than the width of the opening 9a (i.e., the diameter of the smallest circle including the opening 9a (region B in this embodiment)). In other words, in the pet diaper 1, an opening 9a is formed at a position sufficiently close to the elastic member 8 relative to the width of the opening 9a. In the wearing state, the area where the elastic member 8 is provided easily fits snugly against the body of the pet P by the contraction of the elastic member 8. According to the above structure, by arranging the opening 9a at a position close to such a region (i.e., at a position that satisfies the above-mentioned distance requirement), the opening 9a can be easily opened, and breathability can be appropriately improved.

[0209] like Figure 2 As shown, at least one opening 9a is positioned inside the elastic member 8 in the width direction X. In this embodiment, because all the cut portions 91 are positioned inside the elastic member 8 in the width direction X, all the openings 9a are formed inside the elastic member 8 in the width direction X. In the wearing state, the portion inside the elastic member 8 in the width direction X easily fits snugly against the pet's body. According to the above configuration, by forming the opening 9a in such an area, the effect of improving breathability caused by the opening 9a can be enhanced.

[0210] [Variation Example]

[0211] While the above description pertains to embodiments of the present invention, the present invention is not limited to these embodiments. The materials and shapes of each structure are not limited to those described above, and various materials and shapes may be used. Furthermore, some structures included in the structures of the above embodiments may be modified or omitted, and other structures may be added. Several variations will be described below.

[0212] (Example 1)

[0213] At least one opening 9a may also be formed in the thickness direction Z, at least penetrating the leak-proof sheet 42. That is, the opening 9a may not penetrate the surface sheet 3 and the outer sheet 41. For example, it may only be provided on the leak-proof sheet 42. Figure 2 The opening area is such that in region B. The leak-proof sheet 42, which is disposed adjacent to the absorbent core 11 in the back sheet 4, is usually formed of a material with low breathability (e.g., a film) to prevent leakage. According to the above configuration, by forming an opening that at least penetrates through the leak-proof sheet 42, the breathability during wear can be effectively improved.

[0214] (Second variation)

[0215] At least one opening 9a may also be formed in the thickness direction Z, at least penetrating the surface sheet 3 and the leak-proof sheet 42. The outer sheet 41, formed of nonwoven fabric, has a certain degree of air permeability. Therefore, by forming an opening that at least penetrates the surface sheet 3 and the leak-proof sheet 42 (e.g., Figure 2 The opening (such as area B) allows ventilation through the nonwoven fabric (outer sheet 41), enabling air to pass through the inner space (gap S) opposite the surface sheet 3 and the outer space opposite the back sheet 4 (outer sheet 41). This effectively improves breathability when worn.

[0216] (3rd variation)

[0217] In the first and second modifications, at least one opening 9a may also be formed in the thickness direction Z by penetrating the outer sheet 41. Furthermore, the opening 9a formed in the second modification by penetrating the outer sheet 41 is the same as the structure of this embodiment (i.e., the structure in which the opening 9a is formed by a cut 91 penetrating the entire body portion 2). By forming the opening 9a by penetrating the outer sheet 41 made of nonwoven fabric, breathability during wear can be effectively improved.

[0218] (4th variation)

[0219] Figure 7 This is a top view of the fourth variant, pet diaper 1A, viewed from the non-skin side. Figure 7 As shown, in a pet diaper 1A, at least one opening provided in the body portion 2 may have: an opening 91A (the third opening) penetrating the surface sheet 3 along the thickness direction Z, and an opening 91B penetrating the leak-proof sheet 42 along the thickness direction Z. Opening 91A does not penetrate the leak-proof sheet 42, and opening 91B does not penetrate the surface sheet 3. Openings 91A and 91B are arranged in a manner that does not overlap in the thickness direction Z. Figure 7 In the example, among the four openings arranged along the length Y direction on the left and right sides, the first and third openings from the ventral side are formed as opening 91A, and the second and fourth openings from the ventral side are formed as opening 91B. For example, in a pet diaper 1A, by providing at least one ( Figure 7 Examples are 4) openings 91A and at least one ( Figure 7 For example, there are four openings 91B, and the structure in which these openings 91A and 91B are arranged in a non-overlapping manner can improve breathability during wear through each of the openings 91A and 91B, while appropriately maintaining the material strength (thickness) of the body part 2 as a whole. That is, by constructing thin parts (parts with particularly weak material strength) that do not overlap with the openings 91A and 91B, the overall strength of the body part 2 can be ensured.

[0220] (5th variation)

[0221] Figure 8 This is a top view of the fifth variant, pet diaper 1B, viewed from the non-skin side. Figure 8 As shown, the difference between pet diaper 1B and pet diaper 1 is that pet diaper 1B has two slits 91C, 91D, 91E, and 91F on its main body 2. Additionally, the ventral end of the absorbent core 11 of pet diaper 1B is located further back than the ventral end of the absorbent core 11 of pet diaper 1. Figure 8 For example, the ventral end of the absorbent core 11 is positioned approximately at the same location as the dorsal end of the wing F1 in the longitudinal direction Y. Furthermore, a telescopic region C, in which multiple telescopic members W extending in the width direction X are disposed, is provided along the ventral end 2a of the main body 2. Each telescopic member W is fixed to the main body 2 in an extended state in the width direction X, and is configured to retract in the width direction X. Thus, the portion corresponding to the telescopic region C of the main body 2 is configured to retract in the width direction X.

[0222] In the pet diaper 1B, at least one opening (an opening formed by a cut portion 91C) is disposed on at least one of a pair of wings F1. In this embodiment, two cut portions 91C arranged symmetrically on the left and right sides are provided on the wings F1. Figure 5 As shown, in the wearing state, when a pair of fastening tongues 50 are stretched along the width direction X and engaged with the target portion 53, the wing portion F1 bends and fits snugly against the body of the pet P. Therefore, since the opening (the opening formed by the cut portion 91C) configured in such a wing portion F1 is easy to open in the wearing state, the effect of improved breathability caused by the opening can be enhanced.

[0223] In the pet diaper 1B, at least one opening has: configured on one of a pair of wings F1 ( Figure 8 The first opening of the left wing F1) (by Figure 8 The opening formed by the cut 91C on the left side), and the other side of the pair of wings F1 ( Figure 8 The second opening (by) on the right wing F1) Figure 8 The opening is formed by the cut portion 91C on the right side. Furthermore, the aforementioned telescopic region C (telescopic member W) is provided in the area between the first opening and the second opening of the main body portion 2. According to the above structure, since the openings (first opening and second opening) disposed in the wing portion F1 are more easily opened by the force of the telescopic member W retracting in the width direction X when worn, the effect of the opening can be further improved to enhance the breathability caused by the opening.

[0224] In the pet diaper 1B, at least one opening (the opening formed by the cut portion 91D) is disposed between a pair of fastening tongues 50. Figure 8 For example, the two slits 91D are positioned on the ventral side of the absorbent core 11 (between the absorbent core 11 and the stretchable area C). When the pair of fastening tabs 50 are stretched along the width direction X and engaged with the target portion 53 in the wearing state, the area between the pair of fastening tabs 50 (i.e., the portion with the opening formed by the slits 91D) bends and fits snugly against the pet's body. Therefore, because the opening (the opening formed by the slits 91D) located in such an area is easily opened in the wearing state, the improved breathability due to this opening is enhanced.

[0225] In the pet diaper 1B, at least one opening (the opening formed by the cut portion 91E) is positioned where the body portion 2 overlaps with the substrate (substrate sheet 51) of the fastening tongue 50. Figure 8 In the example, each fastening tongue 50 is provided with a cut portion 91E that overlaps with the substrate sheet 51. According to the above configuration, by forming an opening (the opening formed by the cut portion 91E) in the thick portion where the body portion 2 and the substrate sheet 51 of the fastening tongue 50 overlap, especially in the portion where air permeability is obstructed and it is easy to get stuffy, the effect of improving air permeability caused by the opening can be improved.

[0226] In the pet diaper 1B, at least one opening (the opening formed by the cut portion 91F) is positioned on the outer side of the leg side pleat LSG in the width direction X, beyond the supporting point (end R1a) of the leg side pleat LSG. In other words, in the length direction Y, when an opening is formed in the area where the leg side pleat LSG is formed, the opening is formed in a region that avoids the area on the inner side of the supporting point (end R1a) of the leg side pleat LSG in the width direction X. According to the above configuration, since the opening (the opening formed by the cut portion 91F) is formed on the outer side of the supporting point (end R1a) of the leg side pleat LSG (support portion 5a) that blocks excrement from the pet, it is possible to improve the breathability caused by the opening while preventing urine leakage caused by the opening.

[0227] Furthermore, in the fifth variation, although the description pertains to a pet diaper 1B having all of the aforementioned cut portions 91, 91C, 91D, 91E, and 91F, it is also possible to provide only a portion of these cut portions in a pet diaper. Additionally, in this example, although the cut portion (opening forming portion) is provided in the body portion 2 to form an opening in the wearing state, as described in the above embodiment, the opening itself can also be formed on the body portion 2 by cutting off a portion of the body portion 2.

[0228] (Sixth variation)

[0229] Figure 9 This is a diagram illustrating an example of the wearing state of the pet diaper 1C in the sixth variation. (See diagram below.) Figure 9 As shown, the pet diaper 1C can also be a pet diaper without the tail-passing portion 6 (roll-up type). The pet diaper 1C has a generally rectangular body portion 2C, which has: a length direction D1 in the waist circumference direction (corresponding to the "width direction" in the above embodiment), and a short side direction D2 orthogonal to the length direction D1 (corresponding to the "front-back direction" in the above embodiment). That is, as Figure 9 As shown, the body part 2C is worn by wrapping around the waist of the pet P along the length direction D1. For example, a hook strap 71 (fixing member) is provided near one of the ends 2a and 2b in the length direction D1 of the body part 2C. For example, the hook strap 71 is positioned on the non-skin side of the body part 2C (the surface of the outer sheet 41). The hook strap 71 is, for example, a mechanical fastener (flat fastener) capable of engaging with the skin-side surface of the outer sheet 3.

[0230] like Figure 9 As shown, in the wearing state, the main body 2C has the outer sheet 41 as its outer side, and is wrapped around the waist of the pet P with its end 2a located at the upper center of the back of the pet P. In the pet diaper 1C, a rectangular absorbent 10C is disposed at the center of the main body 2C in the longitudinal direction D1 (i.e., the portion opposite the urination port of the pet P in the wearing state). The absorbent 10C includes the same absorbent core as the absorbent core 11. For one example, an opening 91a is provided on the outer side of the area where the absorbent 10C is disposed in the longitudinal direction D1. Figure 9 In the example, multiple (two) semi-circular openings 91a are arranged along the short side direction D2 between each end 2a, 2b of the main body 2C and the absorbent core 10C. Thus, since the rolled-up pet diaper 1C can be worn on the pet in a way that covers the pet's waist, wearing misalignment can be appropriately suppressed. Furthermore, by forming openings 91a at positions on the main body 2C that do not overlap with the absorbent core 10C (or opening-forming portions such as cuts for forming such openings 91a), breathability during wear is improved.

[0231] Reference Figures 10-14 Further details are provided for the 1C type of diaper for pets that require a roll-up design. Figure 10 This is a top view of the pet diaper 1C from the skin side. Figure 11 This is a top view of the pet diaper 1C from the non-skin side. Figure 12 For along Figure 10 A cross-sectional view of AA-lined pet diapers 1C. Figure 13 For along Figure 10 A cross-sectional view of BB line pet diapers 1C. Figure 14 For along Figure 10 A cross-sectional view of the CC line pet diaper 1C.

[0232] like Figure 10 and Figure 11 As shown, the body portion 2C has a generally rectangular (horizontally elongated) planar shape, which has a length direction D1 and a short side direction D2. The body portion 2C has a front end edge 2Ca disposed at one end in the short side direction D2, and a rear end edge 2Cb disposed at the other end in the short side direction D2. Figure 9 As shown, when the pet diaper 1C is worn on a pet, the front edge 2Ca is positioned on the front leg side of the pet P, and the rear edge 2Cb is positioned on the hind leg side of the pet P. In the following description, the direction along the short side direction D2 from the rear edge 2Cb toward the front edge 2Ca is referred to as the front side, and the direction along the short side direction D2 from the front edge 2Ca toward the rear edge 2Cb is referred to as the rear side.

[0233] The main body 2C, like the main body 2, includes a surface sheet 3, a back sheet 4, and an absorbent 10C disposed between the surface sheet 3 and the back sheet 4. The absorbent 10C includes, for example, an absorbent core similar to the absorbent core 11 described above, and a core-covering layer covering the surface of the absorbent core. The core-covering layer is, for example, made of plain white paper or non-woven fabric.

[0234] The main body 2C has a pair of leak-proof pleats 60 disposed on the outer side of the absorbent 10 in the short-side direction D2. The pair of leak-proof pleats 60 prevents the leakage of urine excreted by the pet onto the absorbent 10C in the short-side direction D2. The pair of leak-proof pleats 60 are disposed such that they cover both sides of the surface sheet 3 in the short-side direction D2 from the skin side, and extend across the entire length of the main body 2C in the length direction D1. The pair of leak-proof pleats 60 includes a front leak-proof pleat 61 disposed along the front end edge 2Ca and a rear leak-proof pleat 62 disposed along the rear end edge 2Cb. In the following description, unless there is a particular need to distinguish them, the front leak-proof pleat 61 and the rear leak-proof pleat 62 will be collectively referred to as leak-proof pleats 60.

[0235] For example, the front leak-proof pleat 61 includes a side sheet 611 partially fixed to the surface sheet 3 or the back sheet 4, and a telescopic member 612 joined to the side sheet 611. The rear leak-proof pleat 62 includes a side sheet 621 partially fixed to the surface sheet 3 or the back sheet 4, and a telescopic member 622 joined to the side sheet 621. The side sheets 611 and 621 are each made of a nonwoven fabric with water-repellent or hydrophobic properties. For example, the side sheets 611 and 621 are made of spunlace nonwoven fabric, spunbond nonwoven fabric, thermally bonded nonwoven fabric, meltblown nonwoven fabric, SMS nonwoven fabric, needle-punched nonwoven fabric, hot-air nonwoven fabric, etc. The telescopic members 612 and 622 are, for example, filament rubber.

[0236] Side sheets 611 and 621 each have an elongated shape in the length direction D1, and the main body portion 2C extends along the entire length of the length direction D1. For example... Figures 12-14 As shown, a pair of leak-proof pleats 60 extend outwards from the leak-proof sheet 42. More specifically, the outer edge of the front leak-proof pleat 61 in the short-side direction D2 coincides with the outer edge of one of the outer sheets 41 in the short-side direction D2, and together with the outer edge of that outer sheet 41, forms the front end edge 2Ca. The outer edge of the rear leak-proof pleat 62 in the short-side direction D2 coincides with the outer edge of the other outer sheet 41 in the short-side direction D2, and together with the outer edge of that other outer sheet 41, forms the rear end edge 2Cb.

[0237] like Figure 13 As shown, the side sheets 611 and 621 include: a fixing portion A1 that is joined to the surface sheet 3 or the back sheet 4, and an erected portion A2 that is not joined to the surface sheet 3. The fixing portion A1 is joined to the surface sheet 3 or the back sheet 4, for example, by a hot melt adhesive. The erected portion A2 is disposed in the short side direction D2, closer to the body portion 2C than the fixing portion A1, and can be erected starting from the inner edge A1a of the fixing portion A1.

[0238] like Figure 12 and Figure 14As shown, the two ends of the side sheet 611 of the front leak-proof pleat 61 in the length direction D1 are joined to the surface sheet 3. More specifically, the side sheet 611 of the front leak-proof pleat 61 is joined to the surface sheet 3 near the ends 2a and 2b in a state that tilts inward toward the short side direction D2. The portion other than the two ends of the inner edge 611a of the side sheet 611 in the length direction D1 is not joined to the surface sheet 3. The two ends (fixed ends) of the side sheet 611 in the length direction D1 become the supporting points of the side sheet 611 in the length direction D1. As described above, since the two ends of the side sheet 611 of the front leak-proof pleat 61 in the length direction D1 are joined to the surface sheet 3 in a state that tilts inward toward the short side direction D2, in the extended state, the side sheet 611 is in a state that tilts inward toward the short side direction D2.

[0239] On the other hand, the inner edge 621a of the side sheet 621 of the rear anti-leakage pleat 62 is not fully bonded to the surface sheet 3 across the length direction D1. Because the inner edge 621a of the side sheet 621 is not fully bonded to the surface sheet 3 across the length direction D1, but... Figure 10 , Figure 12 ,as well as Figure 14 As shown, in its extended state, the side sheet 621 is tilted outwards in the short-side direction D2. By tilting the side sheet 621 outwards, the distance between the inner edges 611a and 621a of the pair of leak-proof pleats 60 in the short-side direction D2 increases, thus expanding the area where the pet's urethral opening can be positioned. Therefore, it is easier to put the pet diaper 1C in the proper position, preventing leakage.

[0240] like Figures 10-14 As shown, a pair of telescopic members 81 and 82 (waistband telescopic members) are provided on both sides of the body portion 2C in the short side direction D2, which are fixed to the body portion 2C in an extended state and extend along the length direction D1. The telescopic members 81 and 82 are, for example, made of yarn or rubber. In addition, at least one opening 91a is provided in the body portion 2C. (See reference...) Figure 9 As described above, in this modified example, each of the two sides of the absorber 10C in the length direction D1 is provided with two semi-circular openings 91a, for a total of four.

[0241] like Figure 11 As shown, each opening 91a is provided in region B1, in the short-side direction D2, within the area where the absorbent body 10C (including the absorbent core) is disposed. Region B1 is the area from the front end to the rear end of the absorbent body 10C. In the roll-up pet diaper 1C, this region B1 is a region with relatively high rigidity due to the influence of the absorbent core (absorbent body 10). By providing openings 91a in such a rigid region B1, because in the wearing state (refer to...), Figure 9The opening 91a can be easily expanded, thus effectively improving breathability when worn.

[0242] Furthermore, in the pet diaper 1C, for example, although all the openings 91a are provided in region B1, in order to obtain the above-mentioned effect, it is sufficient to provide only one opening 91a in region B1. In addition, for example, when the absorbent core (absorbent body 10C) has a narrow shape such as the absorbent core 11 of the above-described embodiment, from the viewpoint of appropriately obtaining the above-mentioned effect, it is preferable that at least one opening 91a is provided in the range from the rearmost part of the front edge of the absorbent core to the frontmost part of the rear edge of the absorbent core (i.e., the range of the portion of the absorbent core with the minimum width in the short side direction D2 (the narrowest part)).

[0243] like Figure 11 As shown, the main body 2C has a hook strap 71, which is disposed on one of the two sides of the absorbent core (absorbent body 10C) in the longitudinal direction D1, namely the first side S1 (the side where the end 2a is located relative to the absorbent body 10), in the wearing state (refer to...). Figure 9 The portion of the end 2b relative to the first side S1 of the body 2C (the side where the absorbent 10 is located) is fixed. Additionally, at least one opening 91a (in this modified example, all four openings 91a) is provided in region B2, which is the area where the hook strap 71 is arranged in the short-side direction D2. Region B2 is the area from the front end to the rear end of the hook strap 71. In the roll-up pet diaper 1C, this region B2 is a region with relatively high rigidity due to the influence of the hook strap 71. By providing openings 91a in this highly rigid region B2, because in the wearing state (refer to...),... Figure 9 The opening 91a can be easily expanded, thus effectively improving breathability when worn.

[0244] Furthermore, in the pet diaper 1C, for example, although all the openings 91a are provided in region B2, to achieve the aforementioned effect, it is sufficient to provide only at least one opening 91a in region B2. Additionally, in the pet diaper 1C, although region B2 is included in region B1, when the hook and loop 71 is formed to be longer than the absorbent body 10C, region B1 may be included in region B2. Moreover, from the viewpoint of more appropriately obtaining the aforementioned effect, it is preferable that at least one opening 91a is provided in the area where regions B1 and B2 overlap (e.g., Figure 11 For example, since region B2 can be contained within region B1, it is placed in the same region as region B2.

[0245] like Figure 11As shown, a portion of the second side S2 (the side where the end portion 2b is located with respect to the absorbent body 10) in the main body portion 2C has a non-opening region B3. The non-opening region B3 is not provided with an opening 91a and has a width w2 that is longer than the width w1 of the hook tape 71 in the longitudinal direction D1. According to the above structure, since the hook tape 71 can be fixed to the non-opening region B3 (the skin-side surface of the surface sheet 3) in such a manner that the hook tape 71 does not protrude from the non-opening region B3, it is possible to suppress the overlap of the opening 91a (in this modification, the two openings 91a provided between the end portion 2b and the absorbent body 10C) provided outside the non-opening region B3 with the hook tape 71 in the portion of the second side S2 of the main body portion 2C. Therefore, it is possible to prevent the fixing strength of the hook tape 71 with respect to the portion of the second side S2 of the main body portion 2C from being reduced due to the overlap of the opening 91a and the hook tape 71, and it is possible to prevent the hook tape 71 from obstructing the air permeability in the wearing state achieved through the opening 91a.

[0246] As Figure 11 shown, at least one opening 91a (two openings 91a in this modification) is provided in the portion of the second side S2 of the main body portion 2C. Here, it is sufficient that the width w3 in the longitudinal direction D1 of the opening 91a provided in the portion of the second side S2 of the main body portion 2C is longer than the width w1 of the hook tape 71. That is, the width dimensions of the opening 91a and the hook tape 71 can also be set such that "w3 > w1" holds. According to the above configuration, even when the hook tape 71 is fixed to the portion of the second side S2 of the main body portion 2C in a manner that the hook tape 71 overlaps with the opening 91a in the wearing state, it is possible to ensure that the region for fixing the hook tape 71 to the portion of the second side S2 of the main body portion 2C is continuously formed globally in the hook tape 71 in the short-side direction D2. In other words, the portion where the hook tape 71 and the main body portion 2C (the portion of the second side S2) are engaged with each other is not truncated by the opening 91a in the short-side direction D2. Thus, it is possible to prevent the fixing strength of the hook tape 71 from being reduced due to the opening 91a provided in the portion of the second side S2 of the main body portion 2C.

[0247] Alternatively, it may be that the width w3 of the opening 91a provided in the portion of the second side S2 of the main body portion 2C is shorter than the width w1 of the hook tape 71. That is, the width dimensions of the opening 91a and the hook tape 71 can also be set such that "w3 < w1" holds. According to the above configuration, since it is possible to prevent the entire opening 91a provided in the portion of the second side S2 of the main body portion 2C from being covered by the hook tape 71 in the wearing state, it is possible to suppress the case where the hook tape 71 obstructs the air permeability in the wearing state (i.e., the air permeability achieved through the above-mentioned opening 91a formed in the portion of the second side S2 of the main body portion 2C).

[0248] As Figure 11As shown, at least one opening 91a (two openings 91a in this variation) is provided in region B4 between the absorbent core 10C and the hook strap 71 in the portion of the first side S1 of the main body 2C. According to the above configuration, in the wearing state, since at least one opening 91a is formed in a position opposite to the side of the pet's back and in an area where the number of overlapping sheets of sheet material tends to increase (i.e., a portion that is particularly prone to stuffiness because it tends to overlap with the portion of the second side S2 of the main body), breathability can be appropriately improved.

[0249] like Figure 11 As shown, at least one opening 91a (in this modified example, all four openings 91a) is provided in the longitudinal direction D1 within the area where the main body 2C can extend and retract by means of telescopic members 81 and 82. According to the above configuration, in the wearing state, the openings 91a provided in the main body 2C are properly separated (freed) from the pet's body by the extension and retraction of the telescopic members 81 and 82, thereby further improving breathability.

[0250] Furthermore, in this modified example, since the telescopic members 81 and 82 extend from one end 2a of the body portion 2C to the other end 2b, the aforementioned area coincides with the overall area of ​​the body portion 2C. However, the body portion can, for example, be formed by cutting off the two sides of the respective short side direction D2 of the ends 2a and 2b of the body portion 2C. In this case, the two ends of the telescopic members 81 and 82 in the length direction D1 are located inside the ends 2a and 2b in the length direction D1 than the central portion of the body portion 2C in the short side direction D2. The above structure (i.e., the structure in which at least one opening 91a is provided in the area of ​​the range in which the body portion 2C is extended and retracted by means of the telescopic members 81 and 82) is particularly effective when the ends 2a and 2b do not coincide with the two ends of the telescopic members 81 and 82 in the length direction D1.

[0251] As described above, although the example of a rolled-up pet diaper 1C has been explained, the type of rolled-up pet diaper is not limited to that of pet diaper 1C. For example, in pet diaper 1C, although openings 91a are provided on both sides of the absorbent body 10C in the short side direction D2, it is also possible that at least one opening 91a is provided only on one side of the absorbent body 10C in the short side direction D2 (first side S1 or second side S2). In addition, in pet diaper 1C, although the hook and loop 71 is provided on the surface (outer side) of the outer sheet 41, the hook and loop 71 may also be provided on the surface of the surface sheet 3 (skin side). Furthermore, at least one opening 91a may also be provided at a position overlapping with the hook and loop 71 (fixing member). In this case, the opening 91a may also be provided through the hook and loop 71. Furthermore, although the pet diaper 1C is provided with a hook strap 71 as a fixing member, the fixing member provided in the pet diaper 1C may also be a ring member that engages with the hook-shaped member. In addition, the opening 91a may be replaced by an opening forming part such as the slit portion 91 of the above embodiment in the body portion 2C.

[0252] (Other variations or supplementary items)

[0253] The structures of the above-described embodiments and several variations (variations 1 to 6) can also be combined arbitrarily.

[0254] Furthermore, in the above-described embodiments and the first to sixth modifications, no opening similar to the opening 9a or an opening forming portion similar to the cut portion 91 (opening forming portion) is provided in the area of ​​the main body that overlaps with the absorbent core. According to the above configuration, by completely omitting any ventilation opening (or opening forming portion forming such an opening) in the area that overlaps with the absorbent core in the main body, it is possible to reliably prevent the opening from hindering the absorbency of the pet diaper.

[0255] Furthermore, in the above-described embodiment and the first to fifth modifications, although the tail-passing portion 6 is provided on the dorsal side of the absorber body 10, it is also possible that the tail-passing portion 6 is provided on the ventral side of the absorber body 10. In this case, the absorber body 10 is formed such that, when viewed in the thickness direction Z, it surrounds the area where the tail-passing portion 6 is provided. In other words, when viewed in the thickness direction Z, an opening area corresponding to the area where the tail-passing portion 6 is provided can also be formed in the absorber body 10.

[0256] Explanation of reference numerals in the attached figures

[0257] 1, 1A, 1B, 1C: Pet diapers; 2, 2C: Body part; 2c: Outer edge part; 3: Surface sheet; 4: Back sheet; 5: Side sheet; 5a: Stand-up part; 6: Tail passage part; 8: Elastic member (leg telescopic member); 9a, 91A, 91B, 91a: Opening; 11: Absorbent core; 41: Outer sheet (outer side sheet); 42: Leak-proof sheet (inner side sheet); 50: Fastening tongue; 53: Target part; 71: Hook and loop (fixing member); 81, 82: Telescopic member (waistband telescopic member); 91, 91C, 91D, 91E, 91F: Cut part (opening forming part); F1: Wing part (protrusion); LSG: Leg side pleat; R1a: End (stand-up fulcrum); W: Telescopic member.

Claims

1. A pet diaper that can be worn on a pet in a manner that at least covers the pet's waist circumference, wherein, The pet diaper has a main body portion, which has a width direction along the pet's waist circumference and a front-back direction orthogonal to the width direction when the pet diaper is worn on the pet. The body portion has: A surface sheet, in the worn state, is positioned facing the pet's skin; The back panel, in the worn state, is positioned on the side opposite to the pet's skin side; as well as An absorbent core is disposed between the surface sheet and the back sheet. At a location in the body portion that does not overlap with the absorbent core, at least one opening is provided such that the pet's tail does not pass through in the wearing state and that the breathability of the internal space opposite the surface sheet is improved, or at least one opening forming portion is provided for forming the at least one opening.

2. The pet diaper according to claim 1, wherein, The main body is provided with a tail-passing part for the pet's tail to pass through. The at least one opening has a different shape or size than the tail passage.

3. The pet diaper according to claim 2, wherein, The size of at least one opening is smaller than the size of the opening formed in the tail passage portion.

4. The pet diaper according to claim 1, wherein, The at least one opening has a cut-off shape obtained by cutting off a portion of the body portion.

5. The pet diaper according to claim 1, wherein, The at least one opening is formed by a cut.

6. The pet diaper according to claim 5, wherein, The cut has a curved shape.

7. The pet diaper according to claim 5 or 6, wherein, The cut has a shape that convexes outwards in the width direction.

8. The pet diaper according to claim 5, wherein, The main body has a plurality of cuts that are independently arranged.

9. The pet diaper according to claim 1, wherein, The at least one opening is positioned on the back side of the absorbent core.

10. The pet diaper according to claim 9, wherein, The main body is provided with a tail-passing part for the pet's tail to pass through. The at least one opening is positioned on the back side of the tail passage portion.

11. The pet diaper according to claim 9, wherein, The main body has side panels that form leg-side pleats. These leg-side pleats are fixed at both ends in the front-rear direction, and the portion between the two ends contracts in the front-rear direction, thereby enabling it to stand upright. The opening is positioned closer to the back side than the back side end of the two ends of the leg-side pleat.

12. The pet diaper according to claim 9, wherein, The pet diaper further includes: a pair of fastening tongues that extend outward from both ends of the body portion in the width direction; as well as The target portion, which is disposed in the area of ​​the body portion on the back side of the pair of fastening tabs, engages with the pair of fastening tabs in the wearing state. The at least one opening is configured only in the front-rear direction at a position closer to the ventral side than the target portion.

13. The pet diaper according to claim 1, wherein, The pet diaper further includes: a pair of fastening tongues that extend outward from both ends of the body portion in the width direction; as well as The target portion, which is disposed in the area of ​​the body portion on the back side of the pair of fastening tabs, engages with the pair of fastening tabs in the wearing state. The pair of fastening tongues are provided on each of a pair of protrusions, which extend outward in the width direction from the region in the body portion where the absorbent core is disposed. The at least one opening is disposed on at least one of the pair of protrusions.

14. The pet diaper according to claim 13, wherein, The at least one opening has: a first opening disposed on one side of the pair of protrusions, and a second opening disposed on the other side of the pair of protrusions. A telescopic member is provided in the area between the first opening and the second opening of the main body. The telescopic member is fixed to the main body in a state of elongation along the width direction and extends in the width direction.

15. The pet diaper according to claim 1, wherein, The pet diaper further includes: a pair of fastening tongues that extend outward from both ends of the body portion in the width direction; as well as The target portion, which is disposed in the area of ​​the body portion on the back side of the pair of fastening tabs, engages with the pair of fastening tabs in the wearing state. The pair of fastening tongues are provided on each of a pair of protrusions, which extend outward in the width direction from the region in the body portion where the absorbent core is disposed. The at least one opening is disposed between the pair of fastening tongues.

16. The pet diaper according to claim 1, wherein, The pet diaper further includes: a pair of fastening tongues that extend outward from both ends of the body portion in the width direction; as well as The target portion, which is disposed in the area of ​​the body portion on the back side of the pair of fastening tabs, engages with the pair of fastening tabs in the wearing state. The at least one opening is positioned where the body overlaps with the substrate of the fastening tongue.

17. The pet diaper according to claim 1, wherein, The main body has side panels that form leg-side pleats. These leg-side pleats are fixed at both ends in the front-rear direction, and the portion between the two ends contracts in the front-rear direction, thereby enabling it to stand upright. The opening is positioned on the outer side of the leg-side pleat in the width direction, beyond the point where the leg side pleat is raised.

18. The pet diaper according to claim 1, wherein, The main body is provided with a tail-passing part for the pet's tail to pass through. The opening is positioned outward in the width direction from the tail passage portion.

19. The pet diaper according to claim 18, wherein, When the main body is divided into four parts in the front-rear direction, at least one opening and the tail passage are provided in the third part from the ventral side.

20. The pet diaper according to claim 18, wherein, The main body has side panels that form leg-side pleats. These leg-side pleats are fixed at both ends in the front-rear direction, and the portion between the two ends contracts in the front-rear direction, thereby enabling it to stand upright. The at least one opening is configured at a position overlapping the side sheet.

21. The pet diaper according to claim 1, wherein, The pet diaper has a leg telescopic member that is fixed to the body portion along the outer edge of the body portion in the width direction, in a state of elongation in the front-back direction, and extends in the front-back direction. The distance between the leg telescopic member and the at least one opening in the width direction is smaller than the diameter of the smallest circle containing the at least one opening.

22. The pet diaper according to claim 1, wherein, The pet diaper has a leg telescopic member that is fixed to the body portion along the outer edge of the body portion in the width direction, in a state of elongation in the front-back direction, and extends in the front-back direction. The at least one opening is positioned in the width direction at a location that is more inward than the leg telescopic member.

23. The pet diaper according to claim 1, wherein, The back sheet has: The outer sheet is formed of a nonwoven fabric constituting the outermost surface of the body portion; and An inner sheet is disposed between the outer sheet and the absorbent core. The at least one opening extends through the inner sheet in the thickness direction of the body portion, which is orthogonal to the width direction and the front-back direction.

24. The pet diaper according to claim 23, wherein, The back sheet has: The outer sheet is formed of a nonwoven fabric constituting the outermost surface of the body portion; and An inner sheet is disposed between the outer sheet and the absorbent core. The at least one opening extends through at least the surface sheet and the inner sheet in the thickness direction.

25. The pet diaper according to claim 23 or 24, wherein, The opening extends through the outer sheet in the thickness direction.

26. The pet diaper according to claim 1, wherein, The back sheet has: The outer sheet is formed of a nonwoven fabric constituting the outermost surface of the body portion; and An inner sheet is disposed between the outer sheet and the absorbent core. The at least one opening has: a third opening penetrating the surface sheet in the thickness direction of the body portion orthogonal to the width direction and the front-back direction, and a fourth opening penetrating the inner sheet in the thickness direction. The third opening and the fourth opening are configured in a manner that do not overlap in the thickness direction.

27. The pet diaper according to claim 1, wherein, The body part has a horizontally elongated shape, which has a length direction and a short side direction. The body part is worn by wrapping around the pet's waist in the length direction.

28. The pet diaper according to claim 27, wherein, The at least one opening or the at least one opening forming portion is provided in the region of the area where the absorbent core is disposed in the short side direction.

29. The pet diaper according to claim 27, wherein, The main body has a fixing member disposed on one of the two sides of the absorbent core in the longitudinal direction, namely a first side. In the wearing state, a portion of the main body on a second side opposite to the first side is fixed. The at least one opening or the at least one opening forming portion is provided in the area within the range where the fixing member is disposed in the short side direction.

30. The pet diaper according to claim 29, wherein, The portion of the second side of the body has a non-opening region that does not have the at least one opening or the at least one opening forming part, and the non-opening region has a width longer than the width of the fixing member in the length direction.

31. The pet diaper according to claim 29, wherein, The at least one opening or the at least one opening forming portion is provided on the second side of the body portion. The width of the at least one opening or the at least one opening forming portion in the length direction of the portion provided on the second side is longer than the width of the fixing member in the length direction.

32. The pet diaper according to claim 29, wherein, The at least one opening or the at least one opening forming portion is provided on the second side of the body portion. The width of the at least one opening or the at least one opening forming portion in the length direction of the portion provided on the second side is shorter than the width of the fixing member in the length direction.

33. The pet diaper according to claim 27, wherein, The main body has a fixing member disposed on one of the two sides of the absorbent core in the longitudinal direction, namely a first side. In the wearing state, a portion of the main body on a second side opposite to the first side is fixed. The at least one opening or the at least one opening forming portion is located in the region between the absorbent core and the fixing member in the portion of the first side of the body portion.

34. The pet diaper according to claim 27, wherein, The pet diaper further includes a waistband elastic member, which is fixed to the body portion in an elongated state in the length direction, and the waistband elastic member extends along both sides of the body portion in the length direction. The at least one opening or the at least one opening forming portion is provided in the region along the length direction within which the body portion can be extended or retracted by means of the waist-length telescopic member.

35. The pet diaper according to claim 1, wherein, The area in the body portion that overlaps with the absorbent core is not configured with an opening that is the same as the at least one opening or an opening forming portion that is the same as the at least one opening forming portion.

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