Diaper for pet
The pet diaper design addresses fit and alignment issues by using wider ventral leg openings with perforations and a tail insertion portion, enhancing wearability and reducing leakage.
Patent Information
- Application Number
- JP2023094372
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-06-07
- Publication Date
- 2024-12-19
AI Technical Summary
Conventional tape-type pet diapers often cause poor fit and skin problems due to leg opening interference with the pet's groin, or misalignment leading to leakage, as they either have small leg openings that interfere or large openings that allow misalignment.
The pet diaper design features leg openings with a ventral side wider than the dorsal side, incorporating perforations that allow adjustment to fit the pet's body shape, and a tail insertion portion for correct positioning, ensuring good wearability and alignment.
The design prevents leg opening interference with the pet's groin while maintaining proper fit and alignment, reducing skin irritation and leakage risks.
Smart Images
Figure 2024176112000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to a diaper for pets. [Background technology]
[0002] Conventionally, tape-type pet diapers that are fixed around the waist of a pet with fastening tabs (fastening tapes) have been known as pet diapers worn by pets such as dogs and cats. For example, Patent Document 1 discloses a tape-type pet absorbent article that includes a pair of fastening tapes, a fastening area for fastening the fastening tapes, and perforations in a pair of arc-shaped areas for fastening the leg openings, and can accommodate pets with various sizes of waist and leg circumferences. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] JP 2022-154828 A Summary of the Invention [Problem to be solved by the invention]
[0004] However, in conventional tape-type pet diapers, if the leg openings that form the leg openings are small, they are likely to interfere with the bases of the pet's legs when worn, which may result in poor fit and skin troubles, etc. On the other hand, if the leg openings are large, they are likely to shift position between the legs when worn, which may result in excrement leakage, etc.
[0005] The present invention has been made in consideration of the above problems, and an object of the present invention is to provide a pet diaper that has good wearability and is less likely to slip out of position. [Means for solving the problem]
[0006] The main invention for achieving the above object is a pet wear that, in a stretched and unfolded state, has a front-to-rear direction, a left-to-right direction, and a thickness direction that intersect with one another, and has a ventral waist section, a rear waist section, a crotch section between the ventral waist section and the rear waist section in the front-to-rear direction, a pair of fastening tabs arranged on both sides in the left-to-right direction of the ventral waist section, and a tail insertion section for passing a pet's tail through, and is provided with a pair of leg openings on both sides in the left-to-right direction of the crotch section that are narrower in width in the left-to-right direction than the ventral waist section and the rear waist section, The pet diaper has a through-portion that penetrates the crotch portion in the thickness direction from the periphery of the leg opening portion toward the inside in the left-right direction, and is characterized in that, in a stretched state, of the area of the portion enclosed by a straight line connecting the dorsal end of the left-right side edge of the ventral waist portion and the ventral end of the left-right side edge of the rear waist portion, and the periphery of the leg opening portion, the area on the ventral side of the front-to-rear center position is larger than the area on the dorsal side of the front-to-rear center position. Other features of the present invention will become apparent from the following detailed description of the present invention and the accompanying drawings. Effect of the Invention
[0007] According to the present invention, a pet diaper that has good wearability and is less likely to slip out of position can be provided. [Brief description of the drawings]
[0008] [Figure 1] FIG. 1 is a plan view of the diaper 1 in an open and stretched state. [Diagram 2] Fig. 2A is a schematic cross-sectional view taken along the line AA in Fig. 1. Fig. 2B is a schematic cross-sectional view taken along the line BB in Fig. 1. [Diagram 3] 3A and 3B are diagrams illustrating the operation of putting the diaper 1 on a pet. [Figure 4] 11 is a diagram illustrating the shape of a leg opening LH. FIG. [Diagram 5]5 is a diagram illustrating the diaper 1 in the unfolded and stretched state of FIG. 4 folded in half at a center position CL in the front-rear direction. [Figure 6] 4A to 4C are diagrams for explaining details of a through-hole 40. [Figure 7] 13 is a diagram illustrating a case where perforations (through-holes 40) and leg-hole elastic members 15 overlap. FIG. [Figure 8] 8A and 8B are diagrams illustrating a mechanism for suppressing tearing of the perforations (through-hole portions 40). [Figure 9] 9A and 9B are diagrams for explaining the positional relationship between the perforation (the through-hole 40) and the periphery of the ventral leg opening 4lhf. [Figure 10] 10A and 10B are diagrams illustrating modified examples of the through-hole 40. In FIG. [Figure 11] 13 is a diagram illustrating the arrangement of a tail insertion section 70. FIG. [Figure 12] 13A and 13B are diagrams showing modified examples of the tail insertion section 70. [Figure 13] FIG. 1 is a plan view showing the diaper 100 in an unfolded and stretched state. [Figure 14] 14 is a diagram illustrating the diaper 100 in the unfolded and stretched state of FIG. 13 folded in half at a center position CL in the front-rear direction. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0009] At least the following points will become apparent from the description of this specification and the accompanying drawings. (Aspect 1) In a stretched and unfolded state, the garment has a front-rear direction, a left-right direction, and a thickness direction that intersect with one another, and includes a ventral waist portion, a rear waist portion, a crotch portion between the ventral waist portion and the rear waist portion in the front-rear direction, a pair of fastening tabs arranged on both sides of the ventral waist portion in the left-right direction, and a tail insertion portion for passing a pet's tail through, and a pair of leg openings are provided on both sides of the crotch portion in the left-right direction, the leg openings being narrower in width in the left-right direction than the ventral waist portion and the rear waist portion, a pet diaper having a through-portion penetrating the crotch portion in the thickness direction from the periphery of the leg opening portion toward the inside in the left-right direction, the area of a portion enclosed by a straight line connecting the dorsal end of the left-right side edge of the ventral waist portion and the ventral end of the left-right side edge of the rear waist portion, and the periphery of the leg opening portion, the area on the ventral side of the front-to-rear center position in a stretched state is larger than the area on the dorsal side of the front-to-rear center position.
[0010] According to the pet diaper of the first aspect, the leg opening is formed wider on the ventral side, so that the ventral edge of the leg opening is less likely to interfere with the base of the pet's legs between both legs when the diaper is worn, improving the fit. Also, the through-holes make it easier to prevent the edge of the ventral leg opening from digging into the base of the pet's legs. Meanwhile, the back side of the leg opening is narrower than the ventral side, so the leg opening does not widen excessively overall, and is less likely to shift out of position when worn. Therefore, it is possible to achieve both good fit and less likely to shift out of position.
[0011] (Aspect 2) A pet diaper as described in aspect 1, wherein the periphery of the leg hole portion on the ventral side of the front-to-back center position is narrowed more inward in the left-to-right direction than the periphery of the leg hole portion on the dorsal side of the front-to-back center position.
[0012] According to the pet diaper of the second aspect, the periphery of the ventral leg opening portion is narrowed inward, so that it is less likely to interfere with the base of the pet's legs when the diaper is put on by a pet. Therefore, the periphery of the ventral leg opening portion is prevented from digging into the base of the pet's legs, and the fit can be improved.
[0013] (Aspect 3) In a stretched and unfolded state, the garment has a front-rear direction, a left-right direction, and a thickness direction that intersect with one another, and includes a ventral waist portion, a rear waist portion, a crotch portion between the ventral waist portion and the rear waist portion in the front-rear direction, a pair of fastening tabs arranged on both sides of the ventral waist portion in the left-right direction, and a tail insertion portion for passing a pet's tail through, and a pair of leg openings are provided on both sides of the crotch portion in the left-right direction, the leg openings being narrower in width in the left-right direction than the ventral waist portion and the rear waist portion, a pet diaper having a through-portion penetrating the crotch portion in the thickness direction from the periphery of the leg opening portion toward the inside in the left-right direction, the area of a portion enclosed by a straight line connecting the dorsal end of the left-right side edge of the ventral waist portion and the ventral end of the left-right side edge of the rear waist portion, and the periphery of the leg opening portion, the area on the dorsal side of the front-to-rear center position is larger than the area on the ventral side of the front-to-rear center position in a stretched state.
[0014] According to the pet diaper of the third aspect, the leg openings are wider on the back side when worn, so that it is easy to adjust the position on the back side of the pet, and it is easy to improve the fit. On the other hand, the ventral side of the leg openings is not excessively large, so that it is possible to prevent the absorbent body from shifting between the pet's legs when adjusting the position. If the periphery of the ventral leg openings interferes with the pet's legs, the through-holes (perforations) can be torn and adjusted to suppress the interference. Therefore, it is possible to achieve both good wearability and difficulty in shifting.
[0015] (Aspect 4) A pet diaper as described in aspect 3, wherein the periphery of the leg loop portion on the dorsal side of the front-to-back center position is narrowed more inward in the left-to-right direction than the periphery of the leg loop portion on the ventral side of the front-to-back center position.
[0016] According to the pet diaper of the fourth aspect, after the pet's tail is passed through the tail insertion section, the periphery of the rear leg opening section is unlikely to interfere with the pet's legs when adjusting the position of the rear waist section in the left-right direction, making it easier to adjust the position. This makes it easier to engage the fastening tab with the rear waist section, and thus improves the fit of the pet diaper.
[0017] (Aspect 5) A pet diaper as described in any one of aspects 1 to 4, wherein the through-hole portion is a perforation in which a plurality of grooves that penetrate the crotch portion in the thickness direction are arranged intermittently from the periphery of the leg opening portion toward the inside in the left-right direction.
[0018] According to the pet diaper of the fifth aspect, even if the periphery of the ventral leg openings interferes with the base of the pet's legs when the diaper is worn, the perforations can be torn to form cuts in the ventral leg openings, making it difficult for interference to occur. This can improve the fit when the diaper is worn. And by changing the amount of the perforations to be torn, the fit can be freely adjusted to suit the pet's body shape.
[0019] (Aspect 6) A pet diaper as described in any of aspects 1 to 5, comprising a liquid-absorbent body, a top sheet positioned closer to the skin than the absorbent body, and a core wrap sheet covering the absorbent body, wherein when viewed in the thickness direction, the perforations do not overlap with at least either the top sheet or the core wrap sheet.
[0020] According to the pet diaper of aspect 6, the top sheet and the core wrap sheet are not penetrated in the thickness direction by perforations (penetrating portions), so that when the diaper is worn, urine and other excrement are prevented from leaking along the perforations from the skin side to the non-skin side in the thickness direction.
[0021] (Aspect 7) A pet diaper as described in any of aspects 1 to 6, comprising a liquid-absorbent body and a leakproof sheet arranged on the non-skin side of the absorbent body, and when viewed in the thickness direction, the inner end of the perforation in the left-right direction has a portion that overlaps with the leakproof sheet.
[0022] According to the pet diaper of the seventh aspect, the number of sheet members stacked at the inner left-right end (end) which is the end point when the perforation is torn to the maximum extent is greater than the number of sheet members stacked at the outer left-right end (end) which is the starting point when starting to tear the perforation. Therefore, the user can easily start tearing from the end of the perforation, and further tearing of the diaper (absorbent body, etc.) beyond the end of the perforation is suppressed.
[0023] (Aspect 8) A pet diaper as described in any of aspects 1 to 7, having leg elastic members on both sides in the left-right direction that stretch in the front-to-back direction, and when viewed in the thickness direction, the leg elastic members or their extensions do not intersect with the perforations.
[0024] According to the pet diaper of the eighth aspect, the contraction force of the leg elastic members is unlikely to act on the perforations, and the perforations are prevented from being pulled to both sides by the leg elastic members. This prevents the perforations from tearing spontaneously, making it easier to maintain good fit.
[0025] (Aspect 9) A pet diaper as described in any of aspects 1 to 8, having leg elastic members on both sides in the left-right direction that stretch in the front-to-back direction, and when viewed in the thickness direction, the leg elastic members or their extensions intersect with the perforations.
[0026] According to the pet diaper of the ninth aspect, the leg elastic members are cut at the points where they intersect with the perforations, and contract toward both sides of the perforations, making it easier for a force to act in the direction to open (tear) the perforations. This makes it easier to tear the perforations even with a weak force, and makes it easier to adjust the fit of the pet diaper.
[0027] (Aspect 10) The pet diaper according to any one of aspects 1 to 9, further comprising a groove arranged in a direction intersecting the perforations and located inside the innermost end of the perforations in the left-right direction.
[0028] According to the pet diaper of aspect 10, even if a user tears the perforation from the leading end to the trailing end and accidentally tears beyond the end of the perforation, the intersecting groove portion blocks the force tearing the perforation, thereby preventing the perforation from tearing excessively. (Aspect 11) A pet diaper as described in any one of aspects 1 to 10, wherein, when viewed in the thickness direction, an outer end groove that is located outermost in the left-right direction among the multiple grooves that make up the perforation intersects with the periphery of the leg hole portion.
[0029] According to the pet diaper of aspect 11, when a user tears the perforation, the user can start tearing the part that is the starting point of the tearing at the periphery of the leg opening with light force, so that the action of tearing the perforation can be performed safely and easily. In addition, since it is difficult to apply excessive force when starting to tear, it is possible to prevent the accidental tearing of parts other than the perforation. (Aspect 12) A pet diaper as described in any one of aspects 1 to 11, wherein, when viewed in the thickness direction, an outer end groove that is located outermost in the left-right direction among the multiple grooves that make up the perforation does not intersect with the periphery of the leg hole portion.
[0030] In the pet diaper of aspect 12, the part that is the starting point for the tear is located on the inside of the periphery of the leg opening, so a large force is required to start tearing the perforation. This makes it possible to prevent the perforation from tearing naturally or from tearing unintentionally by the user. (Aspect 13) A pet diaper as described in any one of aspects 1 to 12, wherein when the pet diaper is stretched and unfolded, there is an overlapping portion between the tail insertion portion and the third region from the ventral side when the pet diaper is divided into four equal parts in the front-to-rear direction.
[0031] According to the pet diaper of aspect 13, by specifying the position of the tail insertion part in the front-rear direction, the positions of the ventral waist part, the dorsal waist part, and the crotch part can be easily adjusted based on the position of the pet's tail when the diaper is put on. This makes it easier to properly place each part of the pet diaper on the appropriate part of the pet's body. (Aspect 14) 14. The pet diaper according to any one of aspects 1 to 13, wherein a dorsal end of the tail insertion portion in the front-rear direction is located in the third region from the ventral side.
[0032] According to the pet diaper of aspect 14, when the diaper is worn, the area behind the tail insertion part does not become excessively narrow, which makes it easier to prevent the pet's back from being insufficiently covered and to prevent excrement from leaking out from the rear.
[0033] ===First embodiment=== <Basic composition of diaper 1> The basic structure of a tape-type disposable diaper 1 for pets (hereinafter also referred to as "diaper 1") will be described as an example of a pet diaper to be worn by pets such as dogs and cats. FIG. 1 is a plan view of the diaper 1 in an unfolded and stretched state. FIG. 2A is a schematic cross-sectional view taken along the line AA in FIG. 1. FIG. 2B is a schematic cross-sectional view taken along the line BB in FIG. 1. The stretched state in FIG. 1 refers to a state in which the product (diaper 1) is stretched without wrinkles, specifically, a state in which each component constituting the diaper 1 (e.g., the back sheet 24 described below, etc.) is stretched to a length that matches or is close to the dimension of the component alone.
[0034] As shown in FIG. 1, each direction is defined. That is, the direction along the longitudinal direction of the diaper 1 is defined as the "front-rear direction", and the direction perpendicular to the front-rear direction and along the width direction of the diaper 1 is defined as the "left-right direction". The "front side" in the front-rear direction is the side that is located on the ventral side of the wearer (pet in this case) when the diaper 1 is worn, and is hereinafter also referred to as the "ventral side". The "rear side" in the front-rear direction is the side that is located on the dorsal side of the wearer (pet) when the diaper 1 is worn, and is hereinafter also referred to as the "dorsal side". Also, as shown in FIG. 2A and FIG. 2B, the direction perpendicular to the front-rear direction and the left-right direction is defined as the "thickness direction", the side that comes into contact with the skin of the wearer (pet) is defined as the "skin side", and the opposite side is defined as the "non-skin side".
[0035] The diaper 1 is a so-called open-type tape-type disposable diaper, and has an absorbent body 10, a top sheet 22, a leak-proof sheet 23, a back sheet 24, a side sheet 25, a penetration part 40, a fastening tab 50, and a target area 60.
[0036] The absorbent body 10 has an absorbent core 11 (for example, made of pulverized pulp or a highly absorbent polymer) that absorbs and retains liquid such as excrement, and a liquid-permeable core wrap sheet 12 (for example, a tissue sheet or a spunbond nonwoven fabric) that covers the absorbent core 11. In this embodiment, the absorbent core 11 (absorbent body 10) has a generally hourglass shape in a plan view with a narrowed central portion in the longitudinal direction, and is disposed in the center in the left-right direction with its longitudinal direction aligned with the front-rear direction of the diaper 1. By providing such a narrowed portion in the absorbent core 11, it becomes easier for a pet to move its legs when wearing the diaper 1. However, the shape of the absorbent body 10 does not necessarily have to be an hourglass shape as shown in FIG. 1, and may be, for example, a rectangular shape.
[0037] The top sheet 22 is a liquid-permeable sheet member disposed on the skin side of the absorbent body 10, and is formed of, for example, an air-through nonwoven fabric or a spunbond nonwoven fabric. A pair of side sheets 25, 25 that protrude outward in the left-right direction are joined to the skin side and both left-right sides of the top sheet 22. The inner end of the side sheet 25 in the left-right direction is folded outward, and a leakage barrier elastic member 16 such as rubber thread is sandwiched and joined to the folded-back portion in a state of being stretched in the front-rear direction (see FIG. 2). When the diaper 1 is put on a pet, the inner end of the side sheet 25 in the left-right direction rises to the skin side of the wearer (pet) due to the elasticity exhibited by the leakage barrier elastic member 16, forming a so-called leakage barrier to suppress lateral leakage of urine, etc.
[0038] The leakproof sheet 23 is a liquid-impermeable member arranged on the non-skin side of the absorbent 10, and is made, for example, of a resin film. The backsheet 24 is arranged on the non-skin side of the leakproof sheet 23, and is a member (exterior sheet) constituting the exterior of the diaper 1 closest to the skin, and is made, for example, of a nonwoven fabric.
[0039] Further, a pair of leg elastic members 15, 15 made of rubber thread or the like are sandwiched and joined in a state of being stretched in the front-rear direction outside the absorbent body 10 in the left-right direction. The leg elastic members 15 exhibit stretchability in the front-rear direction, which allows the leg openings LH (see FIG. 3 described later) to easily fit around the pet's legs when the diaper 1 is worn, improving the comfort of wearing the diaper and suppressing lateral leakage of excrement such as urine.
[0040] These members are laminated in the thickness direction, and parts of the laminated members are appropriately bonded together with an adhesive such as a hot melt adhesive, thereby forming the diaper 1.
[0041] As shown in FIG. 1, the diaper 1 in the unfolded and stretched state is formed so that the width in the left-right direction is wide on the ventral side and the back side in the front-rear direction as a whole, and the width in the left-right direction is narrow in the center part in the front-rear direction. Hereinafter, the part with the widest width in the left-right direction on the ventral side in the front-rear direction is referred to as the ventral waistline section 2, and the part with the widest width in the left-right direction on the back side in the front-rear direction is referred to as the back waistline section 3. In FIG. 1, the rectangular part represented by the left-right width W1 on the ventral side in the front-rear direction is the ventral waistline section 2. That is, the ventral waistline section 2 is a part surrounded by side edges along the front-rear direction on both left-right sides, a straight line connecting the front ends of a pair of side edges, and a straight line connecting the rear ends of a pair of side edges. Similarly, in FIG. 1, the rectangular part represented by the left-right width W1 on the back side in the front-rear direction is the back waistline section 3.
[0042] The portion between the ventral waist portion 2 and the rear waist portion 3 in the front-rear direction is defined as the crotch portion 4. The width of the crotch portion 4 in the left-right direction is narrower than the width W1 of the ventral waist portion 2 and the rear waist portion 3 in the left-right direction. Specifically, the crotch portion 4 has both sides cut out in the left-right direction, and the periphery is narrowed from the outside (ventral side and rear side) to the center in the front-rear direction. Hereinafter, the portion constituting the periphery of the crotch portion 4 is defined as the leg opening portion 4lh. The leg opening portion 4lh is a portion that forms the leg opening LH when the diaper 1 is put on a pet (see FIG. 3 described later). Hereinafter, the portion of the leg opening portion 4lh that is closer to the ventral side (front side) than the center position CL in the front-rear direction is also referred to as the ventral leg opening portion 4lhf, and the portion that is closer to the rear side (rear side) than the center position CL in the front-rear direction is also referred to as the rear leg opening portion 4lhb.
[0043] A pair of through-holes 40 are provided in the crotch portion 4 of the diaper 1 on the ventral side of the center position CL in the front-to-rear direction, penetrating the crotch portion 4 in the thickness direction. In Fig. 1, a pair of through-holes 40, 40 are provided extending from the peripheral edge of the ventral leg opening 4lhf toward the inside in the left-right direction and toward the ventral side in the front-to-rear direction. The details of the through-holes 40 will be described later.
[0044] 1 and 2, the abdominal waist portion 2 of the diaper 1 is provided with a pair of fastening tabs 50, 50 extending outward from both ends in the left-right direction of the side sheet 25 and the back sheet 24. The fastening tab 50 has a tape base material 51 and a locking portion 52. The tape base material 51 is a substantially rectangular sheet member made of, for example, nonwoven fabric, and has one end in the left-right direction fixed to the side sheet 25 or the back sheet 24 and the other end in the left-right direction extending outward from both sides of the side sheet 25 and the back sheet 24. The locking portion 52 is a so-called hook-and-loop fastener having a plurality of locking projections (hooks, not shown), and is provided on the skin-facing surface of the tape base material 51 in the thickness direction.
[0045] Meanwhile, in the rear waist portion 3 of the diaper 1, a target area 60 is provided on the non-skin side of the backsheet 24. The target area 60 is an area that can engage with the locking portion 52, and is formed, for example, by providing a member in which fibers on the surface of a nonwoven fabric are processed into a loop shape to facilitate engagement with the locking projections (hooks) of the locking portion 52. Also, instead of forming the target area 60 and the backsheet 24 from different materials, the target area 60 may be formed by processing a partial area of the backsheet 24 in the rear waist portion 3.
[0046] When putting the diaper 1 on a pet, a pair of fastening tabs 50, 50 (locking portions 52, 52) provided on the ventral waist portion 2 are locked to a target area 60 provided on the rear waist portion 3. This forms a waist opening BH and a pair of leg openings LH (see Figs. 3A and 3B). Specific operations when putting on the diaper 1 and the waist opening BH and leg openings LH will be described later.
[0047] Furthermore, a tail insertion section 70 is provided in the center of the crotch section 4 of the diaper 1 in the left-right direction, through which the pet's tail can be passed when the diaper 1 is put on. In Fig. 1, the tail insertion section 70 is formed by a slit 71 that penetrates the top sheet 22, the leakproof sheet 23, and the back sheet 24 in the thickness direction. By providing the tail insertion section 70 in the diaper 1, the tail does not get in the way when putting the diaper 1 on the pet, making it easy to put on and take off the diaper 1. This also improves the fit of the diaper 1 to the pet's body and prevents it from shifting out of position.
[0048] <About putting on diaper 1> 3A and 3B are diagrams illustrating the operation when putting the diaper 1 on a pet. When putting the diaper 1 on a pet, first, as shown in FIG. 3A, the diaper 1 is folded in half in the front-to-back direction while the rear waist section 3 is placed against the pet's back while the pet's tail is passed through the tail insertion section 70. In this state, the ventral waist section 2 of the diaper 1 is placed on the pet's ventral side, and the absorbent body 10 is also placed on the pet's ventral side (i.e., the side where the pet's excretory organs are located). By using the tail insertion section 70 as a reference, the absorbent body 10 can be correctly placed at the position of the pet's excretory organs.
[0049] Next, while pulling up the pair of fastening tabs 50 provided on the ventral waist portion 2 to both sides in the left-right direction, the locking protrusions of the locking portions 52 are hooked and locked into the target areas 60 provided on the back waist portion 3. This connects the ventral waist portion 2 and the back waist portion 3 in a ring shape, forming a waist opening BH as shown in Fig. 3B. In addition, a pair of leg openings LH, LH are formed by the leg openings 4lh, 4lh on both the left-right sides of the crotch portion 4.
[0050] When the diaper 1 is worn, among the leg openings 4lh forming the leg openings LH, the abdominal leg openings 4lhf on the abdominal side in the front-rear direction are in contact with the base of the legs between the pet's legs (hind legs) (see FIG. 3B). Therefore, the periphery of the abdominal leg openings 4lhf may interfere with the base of the pet's hind legs. For example, if the fastening tabs 50 are pulled strongly to both sides in the left-right direction in an attempt to improve the fit around the waist, the periphery of the abdominal leg openings 4lhf may dig into the base of the pet's legs, which may deteriorate the fit or cause skin troubles.
[0051] Therefore, in the diaper 1 of this embodiment, the shape of the leg openings LH when worn is appropriately adjusted to achieve good wearability. Fig. 4 is a diagram illustrating the shape of the leg openings LH. Fig. 4 shows the diaper 1 in an unfolded and extended state, as in Fig. 1. In Fig. 4, the region indicated by the hatched area on the left-right outer side of the leg openings 4lh of the crotch portion 4 is the region that forms the leg openings LH when the diaper 1 is worn. That is, the leg openings LH are formed by the area surrounded by the straight line connecting the back end 2eb in the front-rear direction of the left-right side edge of the ventral waist portion 2 and the ventral end 3ef in the front-rear direction of the left-right side edge of the back waist portion 3, and the periphery of the leg openings 4lh.
[0052] Among the regions indicated by the hatched areas forming the leg openings LH, the portion on the ventral side of the central position CL in the front-rear direction is called the ventral opening A, and the portion on the rear side of the central position CL in the front-rear direction is called the rear opening B. In the diaper 1 of the first embodiment, the area of the ventral opening A is larger than the area of the rear opening B. Since the area of the ventral opening A is larger, the leg openings are wider on the ventral side when worn. Therefore, the periphery of the ventral leg opening portion 4lhf is less likely to interfere with the base of the pet's hind legs between both legs of the pet, improving the fit. On the other hand, since the area of the rear opening B is smaller than that of the ventral opening A, the leg openings LH as a whole do not expand excessively, and are less likely to shift out of position when worn. This allows both good fit and less likely to shift out of position.
[0053] Furthermore, in the diaper 1 of the first embodiment, the leg openings 4lh are formed so that the periphery of the ventral leg openings 4lhf is constricted laterally inward from the periphery of the rear leg openings 4lhb. Fig. 5 is a diagram showing the diaper 1 in the unfolded and extended state of Fig. 4 folded in half at a center position CL in the front-rear direction. In the state in which the ventral waistline portion 2 and the rear waistline portion 3 are overlapped as shown in Fig. 5, the periphery of the ventral leg openings 4lhf is located laterally inward from the periphery of the rear leg openings 4lhb. For example, at a position spaced a distance h1 from the center position CL in the front-rear direction, a point Pf on the periphery of the ventral leg openings 4lhf is located laterally inward from a point Pb on the periphery of the rear leg openings 4lhb.
[0054] In this way, by narrowing the periphery of the abdominal leg opening 4lhf inward, when the diaper 1 is put on a pet as shown in Fig. 3B, the periphery of the abdominal leg opening 4lhf is less likely to interfere with the base of the pet's legs. Therefore, the periphery of the abdominal leg opening 4lhf is prevented from digging into the base of the pet's legs, and the fit can be further improved.
[0055] Furthermore, the diaper 1 is provided with a pair of through-holes 40, 40 extending inward in the left-right direction from the periphery of the ventral leg opening 4lhf, which helps to prevent the periphery of the ventral leg opening 4lhf from digging into the base of the pet's legs. Fig. 6 is a diagram for explaining the details of the through-hole 40. Fig. 6 is an enlarged view of the region adjacent to the ventral waist portion 2 of the ventral leg opening 4lhf of the diaper 1 in the unfolded and extended state.
[0056] The through-hole 40 in the first embodiment is a so-called perforation in which a plurality of grooves 41, 41 ... penetrating the crotch portion 4 in the thickness direction are intermittently arranged from the periphery of the abdominal leg opening 4lhf toward the inside in the left-right direction. By providing such a perforation (through-hole 40), a user (such as a pet owner) can tear a part of the crotch portion 4 along the perforation. That is, a cut can be formed on the periphery of the abdominal leg opening 4lhf. With this configuration, even if the periphery of the abdominal leg opening 4lhf interferes with the base of the legs due to the pet's body shape when the diaper 1 is put on, the interference can be made less likely by forming a cut in the abdominal leg opening 4lhf. This can further improve the fit of the diaper 1 when it is put on. And, by changing the amount of tearing the perforation (the length of the cut), the fit can be freely adjusted to suit the pet's body shape.
[0057] The perforation (penetrating portion 40) may reach from the crotch portion 4 to the abdominal-side waistline portion 2. In other words, the perforation (penetrating portion 40) may penetrate a part of the abdominal-side waistline portion 2 in the thickness direction.
[0058] Furthermore, when the diaper 1 is viewed in the thickness direction, it is preferable that the perforation (penetration portion 40) does not overlap at least one of the core wrap sheet 12 covering the absorbent core 11 and the top sheet 22 provided on the skin side of the absorbent body 10. If the perforation (penetration portion 40) were provided overlapping the core wrap sheet 12 or the top sheet 22, the core wrap sheet 12 or the top sheet 22 would be penetrated in the thickness direction, which may cause urine and other excrement to easily leak from the skin side to the non-skin side through the penetration portion 40 when the diaper 1 is worn.
[0059] In contrast, in the diaper 1, as shown in Fig. 6, the inner end (also called the terminal end) of the perforation (penetration portion 40) is located outside the outer ends of the core wrap sheet 12 and the top sheet 22 in the left-right direction. In other words, the perforation (penetration portion 40) does not overlap with either the core wrap sheet 12 or the top sheet 22. Therefore, when the diaper 1 is worn, urine and the like are prevented from leaking from the skin side to the non-skin side in the thickness direction along the perforation.
[0060] Furthermore, when the diaper 1 is viewed in the thickness direction, the inner end of the perforation (penetration portion 40) in the left-right direction overlaps with the leakproof sheet 23. In Fig. 6, the terminal end of the perforation (penetration portion 40) is disposed at a position overlapping with the leakproof sheet 23. In this case, the terminal end of the perforation (penetration portion 40) penetrates at least three sheet members, namely the side sheet 25, the leakproof sheet 23, and the back sheet 24, in the thickness direction. On the other hand, the outer end (also called the tip portion) of the perforation (penetration portion 40) in the left-right direction does not overlap with the leakproof sheet 23, and penetrates two sheet members, namely the side sheet 25 and the back sheet 24.
[0061] That is, two sheet members are laminated at the outer end (leading end) in the left-right direction, which is the starting point when the perforation starts to be torn, and three sheet members are laminated at the inner end (terminal end) in the left-right direction, which is the end point when the perforation is torn to the maximum extent. With this configuration, when the perforation is torn, it is possible to tear the diaper 1 with a relatively weak force near the leading end, where the tearing starts, and a stronger force is required near the terminal end, where the tearing ends. This allows the user to easily start tearing from the leading end of the perforation, and also prevents the diaper 1 (the absorbent body 10, etc.) from being torn beyond the terminal end of the perforation.
[0062] In addition, when the diaper 1 is viewed in the thickness direction, the perforation (through portion 40) does not overlap with the leg elastic member 15 and its extension. The perforation (through portion 40) is provided by forming a plurality of grooves 41 using a predetermined cutter or the like after joining the side sheet 25 and the back sheet 24 with the leg elastic member 15 sandwiched therebetween in the manufacturing process of the diaper 1. Therefore, if the perforation and the leg elastic member 15 overlap, there is a high possibility that the leg elastic member 15 will be cut in the process of forming the grooves 41. If the leg elastic member 15 is cut by the perforation, the contraction force of the leg elastic member 15 (the force contracting the leg elastic member 15 from the cut portion toward the uncut side) will act on both sides of the perforation. In other words, the perforation may be pulled in a direction intersecting the perforation, which may cause the perforation to tear spontaneously. Similarly, if the perforation (through portion 40) intersects with the extension line of the leg elastic member 15, the contractile force of the leg elastic member 15 may act, causing the perforation to easily tear naturally.
[0063] In contrast, in the diaper 1 of the first embodiment, as shown in Fig. 6, the perforations (through-holes 40) do not overlap with the leg-hole elastic members 15 and their extensions, so that the contractile force of the leg-hole elastic members 15 is less likely to act on the perforations (through-holes 40). In other words, the leg-hole elastic members 15 are prevented from pulling the perforations to both sides (directions intersecting the perforations). This prevents the perforations from tearing spontaneously, making it easier to maintain good fit of the diaper 1.
[0064] On the other hand, when the diaper 1 is viewed in the thickness direction, the perforation (through portion 40), the leg elastic member 15, and its extension may overlap. FIG. 7 is a diagram showing a case where the perforation (through portion 40) and the leg elastic member 15 overlap. In FIG. 7, the leg elastic member 15 is cut at the point where it intersects with the perforation, and is divided into a ventral elastic member 15f located on the ventral side of the perforation and a rear elastic member 15fb located on the rear side of the perforation. In this case, the ventral elastic member 15f and the rear elastic member 15fb each contract, and a force acts in a direction to open (tear) the perforation. For example, when the sheet members (such as the side sheet 25 and the back sheet 24) constituting the diaper 1 are thick and a large force is required to tear the perforation, the contraction force of the ventral elastic member 15f and the rear elastic member 15fb acts on both sides of the perforation, so that the perforation can be easily torn even with a weak force. This allows the fit of the diaper 1 to be easily adjusted.
[0065] In addition, it is preferable to provide a tear suppression mechanism at the end of the perforation to suppress excessive tearing of the perforation. Figures 8A and 8B are diagrams for explaining a tear suppression mechanism for the perforation (through portion 40). In Figure 8A, a vertical groove 42 is provided in a direction intersecting the perforation, on the inside of the innermost end of the perforation in the left-right direction. That is, among the multiple grooves 41, 41... that constitute the perforation, the vertical groove 42 extending in a direction intersecting the inner end groove 41i is arranged further inside than the inner end groove 41i located at the innermost end (end side) in the left-right direction. For example, when a user is tearing the perforation from the leading edge towards the trailing edge and accidentally tries to tear beyond the end of the perforation (inner end groove 41i), if there is a vertical groove 42 (hereinafter also referred to as the "intersecting groove") that intersects with the tearing direction (the direction along the perforation), the vertical groove 42 will block the force tearing the perforation, preventing the perforation from tearing excessively.
[0066] In FIG. 8B, instead of the vertical groove 42, a C-shaped groove 43 is provided on the inside of the innermost end of the perforation in the left-right direction. The C-shaped groove 43 has a portion intersecting with the inner end groove 41i further inside than the inner end groove 41i of the perforation, and functions as a cross groove portion like the vertical groove 42. This blocks the force tearing the perforation by the C-shaped groove 43, and prevents the perforation from tearing beyond the end portion (inner end groove 41i). In addition to the vertical groove 42 and the C-shaped groove 43, a cross groove portion intersecting the perforation may be provided on the inside of the innermost end of the perforation in the left-right direction. Such a cross groove portion functions as a tear suppression mechanism, and prevents the diaper 1 from tearing excessively.
[0067] 9A and 9B are diagrams for explaining the positional relationship between the perforation (through portion 40) and the periphery of the abdominal leg opening portion 4lhf. In FIG. 9A, when the diaper 1 is viewed in the thickness direction, among the multiple grooves 41, 41... constituting the perforation (through portion 40), the outer end groove 41о located at the outermost (tip side) in the left-right direction intersects with the periphery of the abdominal leg opening portion 4lhf. The outer end groove 41о is a portion that becomes the starting point of tearing when tearing the perforation to form a cut in the periphery of the abdominal leg opening portion 4lhf. Therefore, if the outer end groove 41о overlaps with the periphery of the abdominal leg opening portion 4lhf as shown in FIG. 9A, when the user tears the perforation to form a cut in the abdominal leg opening portion 4lhf, the user can start tearing the perforation with a weak force, and the operation of tearing the perforation can be performed safely and easily. In addition, since unnecessary force is less likely to be applied, it is possible to prevent parts other than the perforations from being accidentally torn.
[0068] On the other hand, in FIG. 9B, when the diaper 1 is viewed in the thickness direction, the outer end groove 41о located at the outermost (tip side) side of the perforation in the left-right direction does not intersect with the periphery of the abdominal leg opening 4lhf. That is, the outer end groove 41о is located inside the periphery of the abdominal leg opening 4lhf in the left-right direction. Since the outer end groove 41о, which is the starting point of the tearing, is located at a distance inside the periphery of the abdominal leg opening 4lhf, the force required to start tearing the perforation is larger than that in the case of FIG. 9A. Therefore, by configuring the outer end groove 41о not to overlap with the periphery of the abdominal leg opening 4lhf as in FIG. 9B, it becomes easier to prevent the perforation from tearing naturally or from tearing unintended by the user.
[0069] (Modification of the Penetrating Portion 40) The through-holes 40 of the diaper 1 may have the following configurations other than the perforations described above. Fig. 10A and Fig. 10B are diagrams showing modified examples of the through-holes 40. In Fig. 10A, the through-holes 40 are formed by a single groove. That is, the through-holes 40 are formed by cuts 45 extending from the periphery of the abdominal leg cut-outs 4lhf toward the inside in the left-right direction and toward the abdominal side in the front-rear direction. Since the cuts 45 are provided in advance on the periphery of the abdominal leg cut-outs 4lhf, the leg openings LH can be widened without the trouble of tearing the perforations.
[0070] 10B, the through-hole 40 is formed by a hole having a relatively large area. That is, the through-hole 40 is formed by a cutout 46 in which a predetermined area of the crotch part 4 including the periphery of the ventral leg cutout 4lhf is cut out in the thickness direction. By cutting out a part of the area including the periphery of the ventral leg cutout 4lhf in advance, it becomes easier to prevent the periphery of the ventral leg cutout 4lhf from digging into the base of the pet's leg when the garment is worn.
[0071] In addition, when a cutout portion 46 as shown in Fig. 10B is provided on the periphery of the ventral leg cutout portion 4lhf, the area of the portion cut out by the cutout portion 46 is not included in the area of the ventral opening A described in Fig. 4. In other words, when comparing the area of the ventral opening A with the area of the dorsal opening B, the area of the ventral opening A is determined based on the periphery of the lateral leg cutout portion 4lhf when the cutout portion 46 is not formed (the imaginary line shown by the dotted line in Fig. 10B).
[0072] <Configuration of tail insertion part 70> In the diaper 1, the tail insertion section 70 through which the pet's tail passes when the diaper 1 is worn is disposed closer to the back side than the center position CL in the front-rear direction in the crotch section 4. Specifically, as shown in FIG. 1, the tail insertion section 70 is disposed so as to overlap with the third region (referred to as the third region GA3) from the ventral side (front side) when the length L of the diaper 1 in the unfolded and extended state is divided into four equal parts. By specifying the position of the tail insertion section 70 in the front-rear direction, the positions of the ventral waist section 2, the back waist section 3, and the crotch section 4 can be easily adjusted based on the position of the pet's tail when the diaper 1 is worn. This makes it easier to properly abut each part of the diaper 1 against the appropriate position on the pet's body. For example, the position of the absorber 10 relative to the pet's excretory opening and the position of the leg openings LH relative to both legs of the pet are properly determined. Furthermore, since the position of the tail insertion part 70 is fixed when the diaper 1 is worn, the diaper 1 is less likely to shift position after being worn.
[0073] FIG. 11 is a diagram for explaining the arrangement of the tail insertion section 70. As described above, the tail insertion section 70 is arranged so as to overlap with the third region GA3, which is the third region from the ventral side (front side) when the diaper 1 is divided into four equal parts in the front-rear direction. However, a part of the tail insertion section 70 (notch 71) may overlap with the second region (referred to as the second region GA2) from the ventral side (front side) when the diaper 1 is divided into four equal parts in the front-rear direction. In FIG. 11A, the ventral end of the tail insertion section 70 in the front-rear direction is arranged so as to overlap with the second region GA2. Even with this configuration, the position of the diaper 1 can be easily adjusted when putting it on a pet.
[0074] If part of the tail insertion section 70 overlaps with the second area GA2 as in Figure 11A, there is a possibility that the tail insertion section 70 and the absorbent body 10 (absorbent core 11) will overlap. In this case, it is advisable to change the shape of the absorbent core 11 so that it does not overlap with the tail insertion section 70 as in Figure 11A. However, the tail insertion section 70 may be formed so as to overlap with the absorbent core 11.
[0075] On the other hand, the tail insertion section 70 is arranged so as not to overlap with the fourth region (fourth region GA4) from the ventral side (front side) when the diaper 1 is divided into four equal parts in the front-rear direction. FIG. 11B shows a case where the rear end of the tail insertion section 70 in the front-rear direction overlaps with the fourth region GA4. In the case of FIG. 11B, the region on the back side is narrower than the tail insertion section 70, and the pet's back is not sufficiently covered when the diaper 1 is worn, which may cause excrement to leak to the rear. In addition, the position of the leg openings LH relative to both legs of the pet may easily shift, which may deteriorate the fit of the diaper 1. Therefore, in the diaper 1, the rear end of the tail insertion section 70 in the front-rear direction is arranged so as to overlap with the third region GA3 rather than the fourth region GA4 (see FIG. 1 and FIG. 11A). This makes it easier to prevent the pet's back from being insufficiently covered when the diaper 1 is worn, and to prevent excrement from leaking to the rear.
[0076] Furthermore, the configuration of tail insertion section 70 may be modified as follows. Figure 12 is a diagram showing a modified version of tail insertion section 70. In Figure 12A, tail insertion section 70 is formed by a cross-shaped groove 72 that penetrates crotch section 4 in the thickness direction. In Figure 12B, tail insertion section 70 is formed by a hole 73 that is approximately circular or elliptical. Even when tail insertion section 70 is formed by such grooves 72 or holes 73, it can still achieve the same function as tail insertion section 70 with cutouts 71.
[0077] ===Second embodiment=== In the second embodiment, a pet diaper 100 (hereinafter also referred to as diaper 100) in which the shape of the leg openings 4lh is different from that of the diaper 1 of the first embodiment will be described. Fig. 13 is a plan view showing the diaper 100 in an unfolded and extended state. In the diaper 100 of the second embodiment, the configuration other than the shape of the leg openings 4lh is almost the same as that of the diaper 1 of the first embodiment, and therefore a description of the configuration of each part of the diaper 100 will be omitted.
[0078] In the diaper 100, the region indicated by hatched areas in Fig. 13 on the left-right outer side of the leg openings 4lh of the crotch portion 4 is the region which forms the leg openings LH when the diaper 1 is worn. That is, the leg openings LH are formed by a portion surrounded by a straight line connecting a back end 2eb in the front-to-rear direction of the left-to-right side edge of the ventral waist portion 2 and a ventral end 3ef in the front-to-rear direction of the left-to-right side edge of the back waist portion 3, and the periphery of the leg openings 4lh.
[0079] In addition, if the portion on the ventral side of the central position CL in the front-rear direction is defined as the ventral opening A, and the portion on the rear side of the central position CL in the front-rear direction is defined as the rear opening B, in the diaper 100, the area of the rear opening B is larger than the area of the ventral opening A. Since the area of the rear opening B is large, when the diaper 100 is put on a pet, it is easy to adjust the position on the rear side of the pet, and it is easy to improve the fit. On the other hand, since the area of the ventral opening A is not excessively large, it is possible to prevent the absorber 10 from being displaced between both legs (hind legs) of the pet during position adjustment. If the area of the ventral opening A is small, there is a risk that the periphery of the ventral leg opening portion 4lhf will easily interfere with the base of the pet's legs. However, the ventral leg opening portion 4lhf of the diaper 100 is provided with a perforation (through portion 40), and if the periphery of the ventral leg opening portion 4lhf interferes with the pet's legs, the interference can be suppressed by tearing and adjusting the perforation. This makes it possible to realize a pet diaper that is easy to put on and does not easily shift out of place.
[0080] Fig. 14 is a diagram showing a state where the diaper 100 in the unfolded and stretched state of Fig. 13 is folded in half at a central position CL in the front-rear direction. In the diaper 100 of the second embodiment, when the ventral waistline portion 2 and the rear waistline portion 3 are overlapped as shown in Fig. 5, the periphery of the ventral leg opening portion 4lhf is located laterally outward of the periphery of the rear leg opening portion 4lhb. For example, at a position spaced a distance h1 from the central position CL in the front-rear direction, a point Pf on the periphery of the ventral leg opening portion 4lhf is located laterally outward of a point Pb on the periphery of the rear leg opening portion 4lhb. That is, in the diaper 100 of the second embodiment, the leg opening portions 4lh are formed so that the periphery of the rear leg opening portion 4lhb is constricted laterally inward of the periphery of the ventral leg opening portion 4lhf.
[0081] Since the periphery of the rear leg opening 4lhb is narrowed inward, it becomes easier to adjust the position of the rear waist portion 3 when putting the diaper 100 on a pet. For example, when adjusting the position of the rear waist portion 3 in the left-right direction after passing the pet's tail through the tail insertion portion 70 as shown in FIG. 3A, the periphery of the rear leg opening 4lhb is less likely to interfere with the pet's legs, making it easier to adjust the position. This makes it easier to engage the fastening tab 50 with the target area 60 provided on the rear waist portion 3, improving the fit of the diaper 100.
[0082] ===Other embodiments=== Although the embodiment of the present invention has been described above, the above embodiment is intended to facilitate understanding of the present invention and is not intended to limit the present invention. Furthermore, the present invention may be modified or improved without departing from the spirit of the present invention, and it goes without saying that the present invention includes equivalents thereof. [Explanation of symbols]
[0083] 1 Diaper (first embodiment, pet diaper), 2 ventral girth, 2eb end (dorsal end of the left-right side edge), 3 Dorsal girth, 3ef end (ventral end of the left and right side edge), 4 Crotch part, 4lh leg opening part, 4lhf ventral leg opening part, 4lhb dorsal leg opening part, 10 absorber, 11 Absorbent core, 12 Core wrap sheet, 15 leg elastic member, 16 leak-proof wall elastic member, 22 top sheet, 23 leak-proof sheet, 24 back sheet, 25 side sheet, 40 Penetration section, 41 groove, 41i inner end groove, 41о outer end groove, 42 vertical groove, 43 C-shaped groove, 45 notch, 46 cutout, 50 fastening tabs, 51 tape base material, 52 engagement portion, 60 target areas, 70 Tail insertion part, 71 notch, 72 groove, 73 hole, 100 Diaper (second embodiment, pet diaper), BH waist opening, LH leg opening
Claims
1. In a stretched and deployed state, the elastic member has a front-rear direction, a left-right direction, and a thickness direction which intersect with each other, A ventral waist portion, a rear waist portion, and a crotch portion between the ventral waist portion and the rear waist portion in the front-rear direction; A pair of fastening tabs arranged on both sides of the ventral waist portion in the left-right direction; A tail insertion section for passing your pet's tail through; having A pair of leg openings are provided on both sides of the crotch portion in the left-right direction, the leg openings being narrower in width in the left-right direction than the ventral waistline portion and the back waistline portion, A pet diaper having a through-hole that penetrates the crotch portion in the thickness direction from a periphery of the leg opening toward the inside in the left-right direction, the through-hole being located on the ventral side of a central position in the front-rear direction, A pet diaper characterized in that, in a stretched state, of the area surrounded by a straight line connecting the dorsal ends of the left-right side edges of the ventral waist portion and the ventral ends of the left-right side edges of the ventral waist portion, and the periphery of the leg opening portion, the area on the ventral side of the front-to-rear center position is larger than the area on the dorsal side of the front-to-rear center position.
2. 2. The pet diaper according to claim 1, The periphery of the leg opening on the ventral side of the central position in the front-rear direction is A pet diaper, characterized in that the leg openings are narrowed inward in the left-right direction from the periphery of the leg openings on the rear side of the central position in the front-rear direction.
3. In a stretched and deployed state, the elastic member has a front-rear direction, a left-right direction, and a thickness direction which intersect with each other, A ventral waist portion, a rear waist portion, and a crotch portion between the ventral waist portion and the rear waist portion in the front-rear direction; A pair of fastening tabs arranged on both sides of the ventral waist portion in the left-right direction; A tail insertion section for passing your pet's tail through; having A pair of leg openings are provided on both sides of the crotch portion in the left-right direction, the leg openings being narrower in width in the left-right direction than the ventral waistline portion and the back waistline portion, A pet diaper having a through-hole that penetrates the crotch portion in the thickness direction from a periphery of the leg opening toward the inside in the left-right direction, the through-hole being located on the ventral side of a central position in the front-rear direction, A pet diaper characterized in that, in a stretched state, of the area of the portion enclosed by a straight line connecting the dorsal ends of the left-right side edges of the dorsal waist portion and the ventral ends of the left-right side edges of the dorsal waist portion, and the periphery of the leg opening portion, the area on the dorsal side of the front-to-rear center position is larger than the area on the ventral side of the front-to-rear center position.
4. The pet diaper according to claim 3, The periphery of the leg opening on the back side of the center position in the front-rear direction is The pet diaper is characterized in that the pet is narrowed inward in the left-right direction from the periphery of the leg opening portion located on the ventral side of the central position in the front-rear direction.
5. The pet diaper according to any one of claims 1 to 4, This pet diaper is characterized in that the through-hole portion is a plurality of grooves that penetrate the crotch portion in the thickness direction and are perforations that are arranged intermittently from the periphery of the leg opening portion toward the inside in the left-right direction.
6. The pet diaper according to claim 5, A liquid-absorbing absorbent body; A top sheet is disposed closer to the skin than the absorbent body, and a core wrap sheet covers the absorbent body, A pet diaper, characterized in that, when viewed in the thickness direction, the perforations do not overlap with at least either the top sheet or the core wrap sheet.
7. The pet diaper according to claim 5, A liquid-absorbing absorbent body; a leak-proof sheet disposed on the non-skin side of the absorbent body, A pet diaper, characterized in that, when viewed in the thickness direction, the inner end of the perforation in the left-right direction has a portion that overlaps with the leak-proof sheet.
8. The pet diaper according to claim 5, The leg elastic members are provided on both sides in the left-right direction and are stretchable in the front-rear direction, A pet diaper, characterized in that, when viewed in the thickness direction, the leg-hole elastic members or their extensions do not intersect with the perforations.
9. The pet diaper according to claim 5, The leg elastic members are provided on both sides in the left-right direction and are stretchable in the front-rear direction, A pet diaper, characterized in that, when viewed in the thickness direction, the leg-hole elastic members or their extensions intersect with the perforations.
10. The pet diaper according to claim 5, A pet diaper characterized in that it has a groove arranged in the left-right direction, inside the innermost end of the perforation, in a direction intersecting the perforation.
11. The pet diaper according to claim 5, This pet diaper is characterized in that, when viewed in the thickness direction, an outer end groove located outermost in the left-right direction among the multiple grooves that make up the perforation intersects with the periphery of the leg opening portion.
12. The pet diaper according to claim 5, This pet diaper is characterized in that, when viewed in the thickness direction, among the multiple grooves constituting the perforation, an outer end groove located outermost in the left-right direction does not intersect with the periphery of the leg opening portion.
13. The pet diaper according to any one of claims 1 to 4, This pet diaper is characterized in that, in a stretched and unfolded state, when the pet is divided into four equal parts in the front-to-rear direction, the third region from the ventral side has an overlapping portion with the tail insertion portion.
14. 14. The pet diaper according to claim 13, A pet diaper, characterized in that a dorsal end of the tail insertion portion in the front-to-rear direction is located in the third region from the ventral side.
Citation Information
Patent Citations
Absorbent article for pet
JP2022154828A