Absorbent articles

Abstract

To provide an absorbent product for pets that can effectively suppress urinary incontinence. [Solution] The absorbent article 1 is an absorbent article used by being attached to a pet wearable item 100 that is worn around the body of a pet. The main body 2 of the absorbent article 1 has a surface sheet 3, a back sheet 4, an absorbent body 5 disposed between the surface sheet 3 and the back sheet 4, and a front leak-proof wall portion 20 configured such that the portion between a pair of fixing portions R1 provided on both sides in the body circumference direction D1 rises up with the front end portion E1 as the pivot point at the front end portion E1, which is at least one end of the main body 2 in the front-rear direction D2. The back sheet 4 is folded back at the front end portion E1 towards the pet's skin side Z1 and includes a folded portion 41 that constitutes at least a part of the front leak-proof wall portion 20, and the distance between the front end portion 5a of the absorbent body 5 and the front end portion E1 in the front-rear direction D2 is 5 mm or less.

Description

Technical Field

[0001] The present disclosure relates to absorbent articles.

Background Art

[0002] Patent Document 1 discloses a belly wrap type pet diaper (absorbent article) having a topsheet on the skin side, a backsheet on the non-skin side, an absorber disposed between them, and side gathers formed by a sheet extending outward in the width direction from the backsheet.

Prior Art Documents

Patent Documents

[0003] [[ID=2']]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a conventional configuration such as the absorbent article described in Patent Document, the side gathers are formed by another sheet material that extends further outward than the outer sheet sandwiching the absorber. Therefore, a groove-like space is inevitably formed between the side edge of the absorber and the base where the side gathers rise. For this reason, there has been a risk that urine that has not been absorbed and has accumulated in the groove-like space leaks out to the outside.

[0005] [[ID=3']]<0000??9>

Means for Solving the Problems

[0006] An absorbent article according to one embodiment is an absorbent article used attached to a pet wearable item that is worn around the body of a pet, and comprises a main body having a body direction that follows the body of the pet when the wearable item is worn on the pet, and a front-rear direction perpendicular to the body direction, the main body having a surface sheet disposed on the skin side of the pet, a back sheet disposed on the non-skin side opposite to the skin side, an absorbent disposed between the surface sheet and the back sheet, and a leak-proof wall portion configured such that at least one end of the main body in the front-rear direction, which is a first end, the portion between a pair of fixing parts provided on both sides in the body direction rises up with the first end as the pivot point, the back sheet includes a folded portion that is folded back on the skin side of the pet at the first end and constitutes at least a part of the leak-proof wall portion, and the distance between the end of the absorbent and the first end in the front-rear direction is 5 mm or less. [Effects of the Invention]

[0007] According to this disclosure, it is possible to provide an absorbent article for pets that can effectively suppress urinary incontinence. [Brief explanation of the drawing]

[0008] [Figure 1] This is a plan view of an absorbent article according to one embodiment, as seen from the skin-facing side. [Figure 2] Figure 1 is a plan view of the absorbent material as seen from the non-skin side. [Figure 3] This is a schematic diagram showing the cross-sectional structure of the absorbent article along line III-III in Figure 1. [Figure 4] This is a schematic diagram showing the cross-sectional structure of the absorbent material common to the IVa-IVa and IVb-IVb lines in Figure 1. [Figure 5] Figure 1 is a plan view of a wearable item with an absorbent material attached, as seen from the skin side. [Figure 6] Figure 1 is a schematic diagram showing how the wearable item with the absorbent material attached is fitted around the body of a pet. [Figure 7]This is a schematic diagram showing the cross-sectional structure of an absorbent article according to the first modified example. [Figure 8] This is a schematic diagram showing the cross-sectional structure of an absorbent article according to the second modified example. [Figure 9] This is a plan view of the absorbent article according to the third modified example, as seen from the skin-facing side. [Figure 10] This is a schematic diagram showing the cross-sectional structure of the absorbent material along line XX in Figure 9. [Modes for carrying out the invention]

[0009] This specification and the accompanying drawings will make at least the following aspects clear.

[0010] [1] An absorbent article used attached to a pet wearable item that is worn around the body of a pet, comprising a main body having a body direction that follows the body of the pet when the wearable item is worn on the pet, and a front-to-back direction perpendicular to the body direction, The main body is, A surface sheet placed on the skin side of the pet, A back sheet is positioned on the non-skin side, opposite to the skin side, An absorbent disposed between the surface sheet and the back sheet, The first end, which is at least one end of the main body in the front-rear direction, has a leak-proof wall portion configured such that the portion between a pair of fixing portions provided on both sides in the circumferential direction rises up with the first end as the pivot point. The back sheet includes a folded portion that is folded back at the first end towards the skin side of the pet and constitutes at least a part of the leak-proof wall portion, An absorbent article in which the distance between the end of the absorbent and the first end in the front-to-back direction is 5 mm or less.

[0011] In the above absorbent article, the back sheet is folded back to the skin side at the first end of the main body portion to form a leakage-preventing wall portion, and the distance between the first end that is the starting point of this folding and the end of the absorbent body is extremely close, being 5 mm or less. With this configuration, the grooved space formed between the side edge of the absorbent body and the base portion of the leakage-preventing wall portion, which has been a problem in conventional absorbent articles, is substantially eliminated. Therefore, the excreted urine is quickly guided to the absorbent body without accumulating in this space. As a result, when pressure is applied, for example, when a pet moves or sits, urine leakage such as the accumulated urine leaking out to the outside can be effectively suppressed. <00000​​​​​​​​​​​​​​​​​​​​​​With the above configuration, the leak-proof wall can be provided to cover a wide area in the direction of the waist, so even if the absorbent material shifts slightly in the direction of the waist while worn, the aforementioned leak-proof wall can still provide a urine leakage prevention effect.

[0018] [5] An absorbent article of any of [1] to [4], wherein each of the ends on both sides of the main body in the front-rear direction is configured as the first end.

[0019] With the above configuration, even if the user mistakenly attaches the absorbent item to the pet's body upside down, the leak-proof wall will always be located on the urination side, thus providing the aforementioned urine leakage prevention effect regardless of the attachment direction. Furthermore, even if the pet's urination position shifts forward or backward, or if the absorbed urine spreads forward or backward, the leak-proof walls at both ends can dam the urine. Therefore, it is possible to improve ease of use and further enhance the urine leakage prevention performance under the various conditions described above.

[0020] [6] The folded portion of the back sheet has a portion that is folded back at the top of the leak-proof wall and extends toward the base of the leak-proof wall, The aforementioned portion is an absorbent article comprising a liquid-impermeable material, one of [1] to [5].

[0021] According to the above configuration, the leak-proof wall is covered not only on its outer surface (non-skin side) but also on its inner surface (skin side) by a liquid-impermeable material, effectively forming a double leak-proof structure made of liquid-impermeable material. As a result, even if strong urine pressure is applied to the wall, urine can be more reliably prevented from permeating the wall itself and leaking out by a double barrier, dramatically improving leak resistance. Furthermore, by increasing the thickness of the leak-proof wall, the rigidity of the leak-proof wall itself is increased, and even if the front leak-proof wall 20 tilts in an unintended direction during installation, its ability to recover to an upright position in the intended direction is improved. As a result, the stability of the leak-proof wall is increased, and the urine leakage prevention performance of the leak-proof wall is improved.

[0022] [Embodiment] Embodiments of this disclosure will be described in detail below with reference to the drawings. In the following description, the same reference numerals will be used for identical or equivalent elements, and redundant explanations will be omitted. The drawings may be simplified or exaggerated in part for ease of understanding, and the dimensional ratios are not limited to those shown in the drawings.

[0023] The following describes an absorbent article 1 according to one embodiment. Figure 1 is a plan view of the absorbent article 1 according to one embodiment, viewed from the skin side Z1. Figure 2 is a plan view of the absorbent article 1, viewed from the non-skin side Z2. Figure 3 is a schematic diagram showing the cross-sectional structure of the absorbent article 1 along line III-III in Figure 1. In Figure 3, the front leak-proof wall portion 20 and the rear leak-proof wall portion 30 are shown in an upright position. Figure 4 is a schematic diagram showing the cross-sectional structure of the absorbent article 1 common to lines IVa-IVa and IVb-IVb in Figure 1. In Figure 4, the bonding regions 11 and 12 provided on the back surface 4a of the back sheet 4 are not shown. Figure 5 is a plan view of the wearable article 100 to which the absorbent article 1 is attached, viewed from the skin side Z1. Figure 6 is a schematic diagram showing how the wearable article 100 to which the absorbent article 1 is attached is attached to the body of a pet.

[0024] In this specification, “pet” refers to the animal to which the absorbent article 1 is intended to be used (i.e., the animal to which the wearable article 100 to which the absorbent article 1 is attached is worn). Pets broadly include vertebrates and invertebrates, and typically include companion animals such as dogs, cats, rabbits, and hamsters. In this embodiment, the animal to which the wearable article 100 is worn is a male dog.

[0025] Figures 1 and 2 show the absorbent article 1 in an unfolded state, stretched to a wrinkle-free state. As shown in Figures 1 and 2, the absorbent article 1 has, for example, a rectangular shape. As shown in Figures 5 and 6, the absorbent article 1 is used by being attached to the inside of a wearable article 100 that is wrapped around the body of a pet.

[0026] The absorbent article 1 comprises a main body 2. The main body 2 has a direction D1 circumferential torso and a front-to-back direction D2 perpendicular to the circumferential torso direction D1. That is, the main body 2 extends in the circumferential torso direction D1 and the front-to-back direction D2. The circumferential torso direction D1 is the direction along the waist of the pet when the wearable article 100 to which the absorbent article 1 is attached is worn on the pet, as shown in Figure 6.

[0027] In this specification, for convenience, in the unfolded state shown in Figures 1 and 2, the direction parallel to the front-to-back direction D2 is referred to as the X-axis direction, the direction parallel to the waist circumference direction D1 is referred to as the Y-axis direction, and the direction parallel to the thickness direction D3, which is perpendicular to the waist circumference direction D1 and the front-to-back direction D2, is referred to as the Z-axis direction. In this specification, "skin-facing side Z1" is the side of the absorbent article 1 that faces the pet's skin when it is worn on the pet together with the wearable article 100. "Non-skin-facing side Z2" is the side that faces away from the pet's skin when it is worn.

[0028] As shown in Figures 1 to 4, the main body 2 comprises a surface sheet 3, a back sheet 4 (film material), an absorbent 5, a front sheet 6, and a rear sheet 8. The front sheet 6 is a sheet provided on the side that is in front of the pet when worn, and the rear sheet 8 is a sheet provided on the side that is in rear of the pet when worn. In other words, the absorbent article 1 of this embodiment is intended to be attached to the wearable item 100 so that the side with the front sheet 6 is in front and the side with the rear sheet 8 is in the rear, and then worn around the body of the pet.

[0029] The surface sheet 3 constitutes the surface of the main body 2 that comes into contact with the pet and is positioned on the skin side Z1. The surface sheet 3 is permeable to liquids, for example, allowing the pet's urine to pass through to the absorbent material 5. The surface sheet 3 can be formed from, for example, a nonwoven or woven fabric with liquid permeability, a synthetic resin film with liquid permeability holes, or a composite sheet thereof. In this embodiment, the surface sheet 3 is positioned over the entire skin side Z1 of the main body 2 and has a folded portion 31 that is folded back at the front end E1 (first end) of the main body 2 so as to constitute a part of the front leak-proof wall portion 20, which will be described later.

[0030] The back sheet 4 is located on the main body 2, facing the skin-facing side Z1 of the wearable article 100, and positioned on the non-skin-facing side Z2. The back sheet 4 can be made of, for example, a liquid-impermeable nonwoven fabric, a synthetic resin film, or a composite sheet thereof. In this embodiment, the back sheet 4 is a leak-proof sheet made of a liquid-impermeable synthetic resin film. The back sheet 4 is folded back at its front end E1 towards the skin-facing side Z1 and includes a folded portion 41 that constitutes at least a part of the front leak-proof wall portion 20, which will be described later.

[0031] The absorbent body 5 is positioned between the surface sheet 3 and the back sheet 4. The absorbent body 5 absorbs pet urine. For example, the absorbent body 5 is formed in a rectangular shape, with a length D1 in the circumference direction longer than the length D2 in the front-to-back direction. For example, the absorbent body 5 may include an absorbent core and a core wrap that covers the surface of the absorbent core. The absorbent core may include, for example, water-absorbent pulp or a superabsorbent polymer (SAP), or a mixture thereof. The core wrap is, for example, tissue or a nonwoven fabric sheet. In this embodiment, the outer shape of the absorbent core as viewed from the thickness direction D3 is substantially the same as the outer shape of the absorbent body 5. As shown in Figures 1 and 3, the front end 5a of the absorbent body 5 is positioned along the front end E1 of the main body 2. On the other hand, the rear end 5b of the absorbent body 5 is positioned forward and separated from the rear end E2 of the main body 2.

[0032] The main body 2 includes a front leak-proof wall section 20 (leak-proof wall section) and a rear leak-proof wall section 30.

[0033] The front leak-proof wall portion 20 is composed of the folded portion 31 of the surface sheet 3, the folded portion 41 of the back sheet 4, and the front sheet 6. As shown in Figure 3, the front sheet 6 is joined to the skin side Z1 of the folded portion 31 of the surface sheet 3. The front sheet 6 is folded in half, and the folded portion (the portion where the elastic member 7 is provided, as will be described later) constitutes the top portion 20a of the front leak-proof wall portion 20. The front sheet 6 is provided over the entire area of ​​the main body portion 2 in the circumference direction D1. The front sheet 6 is, for example, a nonwoven fabric sheet. The folded portion 41 of the back sheet 4 is joined to cover the surface of the non-skin side Z2 of the folded portion 31 of the surface sheet 3 and a part of the surface of the non-skin side Z2 of the front sheet 6.

[0034] The front leak-proof wall portion 20 is configured such that the portion between the pair of fixing portions R1 provided on both sides in the circumferential direction D1 at the front end E1 of the main body portion 2 rises up with the front end E1 as the pivot point. As shown in Figure 4, each fixing portion R1 is the portion where the skin-side Z1 surface of the front leak-proof wall portion 20 (in this embodiment, the surface of the front sheet 6) and the skin-side Z1 surface 3a of the surface sheet 3 are joined (fixed). As shown in Figure 1, in this embodiment, the pair of fixing portions R1 are provided at both ends in the circumferential direction D1 along the front end E1, and are each provided in a rectangular shape.

[0035] With the above-described configuration, the portion of the front leak-proof wall 20 between the pair of fixing portions R1 is configured to rise up with the front end portion E1 as the pivot point. Furthermore, in this embodiment, in order to facilitate the rising of the front leak-proof wall 20, as shown in Figures 1 and 3, the front leak-proof wall 20 is provided with an elastic member 7 that expands and contracts in the direction of the body circumference D1, in a predetermined range including at least the central part of the main body portion 2 in the direction of the body circumference D1. The elastic member 7 is, for example, elastic thread. As an example, the elastic member 7 is sandwiched in the front sheet 6 at the folded portion of the front sheet 6.

[0036] The rear leak-proof wall portion 30 is composed of a rear sheet 8. As shown in Figure 3, the rear sheet 8 is provided along the rear end E2 of the main body portion 2 and covers the entire area of ​​the main body portion 2 in the circumferential direction D1. The rear edge of the rear sheet 8 coincides with the rear end E2 of the main body portion 2. As an example, the leading edge of the rear sheet 8 is folded back to the skin side Z1. An elastic member 9 that expands and contracts in the circumferential direction D1 is provided between the folded rear sheet 8. In this embodiment, the elastic member 9 is located near the top 30a of the rear leak-proof wall portion 30. The elastic member 9 is, for example, a thread elastic similar to the elastic member 7.

[0037] The rear leak-proof wall portion 30 is joined (fixed) to the surface 3a of the surface sheet 3 by a pair of fixing portions R2 and R3. The pair of fixing portions R2 are provided at both ends in the circumferential direction D1 along the rear end E2, and are each provided in a rectangular shape. The fixing portion R3 is provided between the pair of fixing portions R2, extending in the circumferential direction D1 along the rear end E2, in a rectangular shape. The front-to-back width of fixing portion R3 is smaller than the front-to-back width of each fixing portion R2.

[0038] With the above-described configuration, the portion of the rear leak-proof wall 30 between the pair of fixing parts R2 and inside (front of) the fixing part R3 is configured to rise up with the front end edge of the fixing part R3 as the upright support point 30b.

[0039] As shown in Figure 2, bonding regions 11 and 12 are provided on the back surface 4a (the non-skin side Z2) of the back sheet 4. The bonding regions 11 and 12 are provided along both side edges of the main body 2 in the circumference direction D1 and extend in the front-to-back direction D2. The bonding regions 11 and 12 are provided in a rectangular shape with the front-to-back direction D2 as the longitudinal direction. The bonding regions 11 and 12 are adhesive surfaces, such as adhesive tape.

[0040] As shown in Figure 5, the absorbent article 1 is attached to the wearable article 100 via joining regions 11 and 12. The wearable article 100 has an inner surface 100a to which the absorbent article 1 is attached, and an outer surface 100b. Furthermore, the wearable article 100 is formed such that, as an example, the front-to-back width increases towards the inside in the waist direction D1, and has the greatest front-to-back width at the center in the waist direction D1. The wearable article 100 has a central region P1 with a relatively large front-to-back width including the center in the waist direction D1, and a pair of end regions P2 and P3 located on both sides of the central region P1 in the waist direction D1. The absorbent article 1 is attached to the central region P1. In this embodiment, the absorbent article 1 is attached to the inner surface 100a of the wearable article 100 in the central region P1 via the respective joining regions 11 and 12. The respective end regions P2 and P3 are regions that are fixed to each other so as to maintain the wearable article 100 in a state attached to the waist of the pet.

[0041] A joining region 101 is provided on the inner surface 100a of one end region P2. The joining region 101 is provided in a rectangular shape that extends in the front-rear direction D2 along the edge of the end region P2 opposite to the central region P1 side. As an example, the joining region 101 is provided with multiple loop sections.

[0042] A joining region 102 is provided on the outer surface 100b of the other end region P3. The joining region 102 is provided in a rectangular shape extending in the front-rear direction D2 along the edge of the end region P3 opposite to the central region P1 side. For example, the circumference width of the joining region 102 (length along the circumference direction D1) is made larger than the circumference width of the joining region 101. For example, the joining region 102 is provided with multiple hook portions that engage with multiple loop portions of the joining region 101. In this way, the joining region 101 and the joining region 102 are configured to be able to be joined and detached by bringing their surfaces together. Note that the joining region 101 may be provided with multiple hook portions, and the joining region 102 may be provided with multiple loop portions.

[0043] As shown in Figure 6, the wearable item 100 to which the absorbent item 1 is attached is wrapped around the pet's body such that the front end E1 of the absorbent item 1 is positioned forward and the absorbent item 1 is positioned below the pet. The wearable item 100 is then attached to the pet's body by fixing the joining area 101 to the joining area 102.

[0044] [Effects and Effects] (First effect) In the absorbent article 1, the back sheet 4 (film member) is folded back at the front end E1 towards the skin side Z1, and includes a folded portion 41 that constitutes at least a part of the front leak-proof wall portion 20. With the above configuration, at least a part of the front leak-proof wall portion 20 can be formed by folding back the liquid-impermeable film member constituting the back sheet 4 towards the pet's skin side Z1. In this embodiment, as shown in Figure 3, the folded portion 41 of the back sheet 4 is configured to cover at least a part of the outer surface of the portion from the base (front end E1) to the top 20a of the front leak-proof wall portion 20. As a result, the liquid-impermeable film member can continuously cover at least a part of the front leak-proof wall portion 20 (the portion where the film member is provided) from the back surface of the absorbent body 5 (the surface facing the back sheet 4), so that urine leakage can be effectively suppressed even when urination is forcefully excreted with high urine pressure.

[0045] (Second effect) In absorbent article 1, the distance between the end of the absorbent material 5 (front end 5a) and the front end E1 of the main body 2 in the front-to-back direction D2 is 5 mm or less. That is, in absorbent article 1, the back sheet 4 is folded back to the skin side Z1 at the front end E1 of the main body 2 to form the front leak-proof wall portion 20, and the distance between the front end E1, which is the starting point of this fold, and the end of the absorbent material 5 (front end 5a) in the front-to-back direction D2 is extremely close, at 5 mm or less. With this configuration, the groove-like space that was a problem in conventional absorbent articles, which was formed between the side edge (front end 5a) of the absorbent material 5 and the base (front end E1) of the front leak-proof wall portion 20, is substantially eliminated. Therefore, excreted urine does not accumulate in this space and is quickly guided to the absorbent material 5. This effectively suppresses urine leakage, such as when accumulated urine leaks out when pressure is applied, for example, when a pet moves or sits down. In this embodiment, as shown in Figures 1 and 3, the front end E1 of the main body 2 and the front end 5a of the absorber 5 are approximately coincident. As a result, the distance between the end of the absorber 5 (front end 5a) and the front end E1 of the main body 2 in the front-rear direction D2 is approximately 0 mm. That is, the absorber 5 is provided to the full extent of the front end E1 of the main body 2, and the back sheet 4 is folded back using the front end 5a of the highly rigid absorber 5 as a fold, thereby forming the folded portion 41.

[0046] As shown in Figure 1, the front leak-proof wall portion 20 is provided with an elastic member 7 that expands and contracts in the circumferential direction D1, within a predetermined range that includes at least the central part of the main body portion 2 in the circumferential direction D1. This predetermined range is, for example, 1 / 3 or more of the total length of the main body portion 2 in the circumferential direction D1. With this configuration, the contraction force of the elastic member 7 provided on the front leak-proof wall portion 20 makes it easier for the front leak-proof wall portion 20 to stand up with the front end portion E1 as the pivot point. This improves the urine damming function of the front leak-proof wall portion 20.

[0047] As shown in Figure 4, when the portion 42 on the non-skin side Z2 of the back sheet 4 (film member) and the folded portion 41 are parallel, the total length L of the back sheet 4 in the front-to-back direction D2 is longer than the length L3 of the main body 2 in the front-to-back direction D2. In this embodiment, portion 42 is the portion of the back sheet 4 excluding the folded portion 41. Furthermore, portion 42 is provided over the entire area of ​​the main body 2 in the front-to-back direction D2. Therefore, the length of portion 42 in the front-to-back direction D2 is equal to the length L3 of the main body 2. Here, the total length L is the sum of the length L2 of the folded portion 41 (length from the front end E1, which is the base of the folded portion 41, to the top 41a) and the length L3 of portion 42 (L2 + L3). Therefore, in this embodiment, the total length L (= L2 + L3) is longer than the length L3 of the main body 2 by the length L2 of the folded portion 41. In the above configuration, the total length L of the back sheet 4 (film material) is longer than the front-to-back width (length L3) of the main body 2. That is, a single film material is long enough to form both the portion 42 that covers the back surface of the main body 2 and the portion (folded portion 41) that is folded back from there to form the front leak-proof wall portion 20. This ensures that the back surface of the absorbent material 5 is continuously covered from the front leak-proof wall portion 20 with a single film material, thereby effectively suppressing urine leakage.

[0048] As shown in Figures 3 and 4, the front leak-proof wall portion 20 is impermeable to liquid over at least 1 / 3 of the height L1 from the front end portion E1 to the top portion 20a of the front leak-proof wall portion 20. In this embodiment, the above configuration is achieved by making the length L2 of the folded portion 41, which is made of a liquid-impermeable film member, at least 1 / 3 of the height L1. By providing a liquid-impermeable wall portion to a certain height or higher, urine leakage in the event of forceful urination with high urine pressure can be suppressed even more effectively. Furthermore, even if urine that has not been absorbed by the absorbent material 5 accumulates to a certain level, it is possible to suppress the leakage of such urine through the front leak-proof wall portion 20 to the outside. This improves the reliability of the urine damming function of the front leak-proof wall portion 20 and suppresses urine leakage even more effectively. Furthermore, from the viewpoint of improving the damming function, it is more preferable that the length L2 of the folded portion 41 be 1 / 2 or more of the height L1, and even more preferable that it be 2 / 3 or more of the height L1.

[0049] As shown in Figure 4, the height L1 from the front end E1 to the top 20a of the front leak-proof wall 20 is 1 / 10 or more of the length L3 of the main body 2 in the front-rear direction D2. With the above configuration, sufficient physical height is secured for the front leak-proof wall 20 to exert its urine damming function, so even when a large amount of urine is urinated at once or when urination is forceful, it is possible to effectively suppress urine from overflowing the front leak-proof wall 20 and leaking out. Furthermore, from the viewpoint of improving the damming function, it is more preferable that the height L1 of the front leak-proof wall 20 be 1 / 5 or more of the length L3 of the main body 2.

[0050] As shown in Figure 1, the length of the main body 2 in the front-to-back direction D2 is shorter than the length of the main body 2 in the waist direction D1. In other words, the absorbent article 1 has an elongated shape in the waist direction D1. With the above configuration, the front leak-proof wall portion 20 can be provided to cover a wide area in the waist direction D1, so even if the absorbent article 1 shifts slightly in the waist direction D1 when worn, the urine leakage prevention effect of the front leak-proof wall portion 20 can be exerted.

[0051] [Differentiation] Although embodiments of the present disclosure have been described above, the present disclosure is not limited to the embodiments described above. The materials and shapes of each component are not limited to those described above, and various materials and shapes can be used. In addition, some components of the absorbent article 1 described above may be modified or omitted.

[0052] In the above embodiment, the front leak-proof wall portion 20 was joined to the folded portion 41 of the back sheet 4, and the front sheet 6 was included as a sheet member that constitutes the front leak-proof wall portion 20 together with the back sheet 4. The front sheet 6 was made of a liquid-permeable nonwoven fabric sheet, but the front sheet 6 may be made of a liquid-impermeable material. For example, the front sheet 6 may be made of a liquid-impermeable film material similar to the folded portion 41. With such a configuration, the front leak-proof wall portion 20 is formed by joining a liquid-impermeable sheet member (front sheet 6) to the liquid-impermeable folded portion 41. This makes it easy to make the entire front leak-proof wall portion 20 liquid-impermeable, and even if urine reaches the top portion 20a of the front leak-proof wall portion 20, it is possible to suppress the urine from permeating through the front leak-proof wall portion 20 and leaking out. More specifically, the front sheet 6 alone can form a liquid-impermeable wall, and the portion covered by the folded-over portion 41 can have its leak-proof function further enhanced by the amount of the folded-over portion 41. Therefore, urine leakage can be suppressed more effectively.

[0053] Figure 7 is a schematic diagram showing the cross-sectional structure of the absorbent article 1A according to the first modified example (cross-sectional view at the position of line III-III in Figure 1). As shown in Figure 7, the folded portion 41 has a portion 41b that extends beyond the top portion 20a of the front leak-proof wall portion 20, and this portion 41b may be folded back at the top portion 20a toward the skin side Z1 and extend toward the base portion of the front leak-proof wall portion 20 (the front end portion E1 in this embodiment). In this case, the top portion 41a of the folded portion 41 may reach the base portion of the front leak-proof wall portion 20, or it may not reach the base portion as in the example in Figure 7. Here, portion 41b contains a liquid-impermeable material. In this example, portion 41b is a liquid-impermeable film member. According to the above configuration, the front leak-proof wall portion 20 is covered not only on its outer surface (non-skin side Z2) but also on its inner surface (skin side Z1) by the liquid-impermeable folded portion 41, effectively forming a double leak-proof structure made of liquid-impermeable material. As a result, even if strong urine pressure is applied to the wall, urine can be more reliably prevented from permeating the wall itself and leaking out with a double barrier, dramatically improving leak prevention. Furthermore, by increasing the thickness of the front leak-proof wall portion 20, the rigidity of the front leak-proof wall portion 20 itself is increased, and even if the front leak-proof wall portion 20 falls in an unintended direction during installation, its ability to recover to an upright position in the intended direction is improved. As a result, the stability of the front leak-proof wall portion 20 is increased, and the urine leakage prevention performance of the front leak-proof wall portion 20 is improved. In this embodiment, the back sheet 4 itself is made of a liquid-impermeable film material, so a portion of it, the 41b, is also made liquid-impermeable. However, for example, the liquid-impermeable portion 41b may be formed by coating the surface of the back sheet 4, which is made of a liquid-permeable material, with a liquid-impermeable material.

[0054] Figure 8 is a schematic diagram showing the cross-sectional structure of the absorbent article 1B according to the second modified example (cross-sectional view at the position of line III-III in Figure 1). As shown in Figure 8, the front sheet 6 may be omitted. In this example, the front leak-proof wall portion 20 is composed of a folded portion 31 of the surface sheet 3 and a folded portion 41 of the back sheet 4. As an example, the folded portion 31 has the same configuration as the rear leak-proof wall portion 30 (rear sheet 8). That is, the tip of the folded portion 31 is folded back to the skin side Z1, and an elastic member 7 is provided between the folded portion. With this configuration, although the thickness of the front leak-proof wall portion 20 is reduced compared to the case in which the front sheet 6 is provided, the front leak-proof wall portion 20 can be formed at low cost with less material.

[0055] Figure 9 is a plan view of the absorbent article 1C according to the third modified example, as seen from the skin side Z1. Figure 10 is a schematic diagram showing the cross-sectional structure of the absorbent article 1C along line XX in Figure 9. As shown in Figures 9 and 10, both ends of the main body 2 in the front-rear direction D2 (i.e., the front end E1 and the rear end E2) may be configured as upright support points for the leak-proof wall portion, which includes the folded portion of the back sheet 4. The absorbent article 1C differs from the absorbent article 1 in that it has a rear leak-proof wall portion 20A with a configuration similar to the front leak-proof wall portion 20, instead of a rear leak-proof wall portion 30. That is, in the absorbent article 1C, the main body 2 has a rear sheet 6A similar to the front sheet 6, and the back sheet 4 includes a folded portion 43 that is folded back to the skin side Z1 at the rear end E2 and constitutes at least a part of the rear leak-proof wall portion 20A. Furthermore, in absorbent article 1C, the rear end 5b of the absorbent body 5 extends to a position along the rear end E2 of the main body 2. As a result, in absorbent article 1C, the main body 2 has a structure that is symmetrical in the front-to-back direction D2. With the above configuration, even if the user mistakenly attaches the absorbent article 1C to the pet's body in reverse, the front leak-proof wall portion 20 or the rear leak-proof wall portion 20A will always be located on the urination side (typically the front when the absorbent article 1C is attached to the pet so that the genitals face forward), thus the above-mentioned urine leakage prevention effect can be obtained regardless of the direction of attachment. In addition, even if the pet's urination position shifts front to back, or if the absorbed urine diffuses front to back, the urine can be blocked by the leak-proof walls 20, 20A at both ends. Therefore, it is possible to improve the convenience of use and further enhance the urine leakage prevention performance under the various conditions described above.

[0056] In the above embodiment, the absorbent article 1 had a configuration that corresponded to both the first and second effects described above, but the absorbent article 1 may have a configuration that corresponds to only one of the first and second effects. For example, focusing on the first effect, the absorbent article 1 does not have to have a configuration that corresponds to the second effect, namely that "the distance between the end of the absorbent 5 (front end 5a) in the front-rear direction D2 and the front end E1 of the main body 2 is 5 mm or less." For example, both the surface sheet 3 and the back sheet 4 may have portions that extend forward of the front end 5a of the absorbent 5 in the front-rear direction D2, and as a result, the distance between the front end E1 of the main body 2 and the front end 5a of the absorbent 5 may be greater than 5 mm. Conversely, focusing on the second effect, the absorbent article 1 does not have to have a configuration that corresponds to the first effect, namely that "the back sheet 4 includes a liquid-impermeable film member." For example, the back sheet 4 may be a liquid-permeable sheet. While the second effect can be more favorably obtained when the back sheet 4 is composed of a liquid-impermeable film member, the second effect can also be obtained when the back sheet 4 is composed of a liquid-permeable sheet, as long as it has a configuration that corresponds to the above-mentioned second effect. [Explanation of symbols]

[0057] 1, 1A, 1B, 1C... Absorbent material, 2... Main body, 3... Surface sheet, 4... Back sheet, 5... Absorbent material, 7... Elastic member, 20... Front leak-proof wall (leak-proof wall), 20A... Rear leak-proof wall (leak-proof wall), 20a... Top, 30b... Support point for standing, 41, 43... Folded-over part, 100... Wearable item, D1... Waist direction, D2... Front-to-back direction, E1... Front end (first end), R1... Fixing part, Z1... Skin side, Z2... Non-skin side.

Claims

1. An absorbent article used attached to a pet wearable item worn around the body of a pet, comprising a main body having a body direction that follows the body circumference of the pet when the wearable item is worn on the pet, and a front-to-back direction perpendicular to the body direction, The main body is, A surface sheet placed on the skin side of the pet, A back sheet is positioned on the non-skin side, opposite to the skin side, An absorbent disposed between the surface sheet and the back sheet, The first end, which is at least one end of the main body in the front-rear direction, has a leak-proof wall portion configured such that the portion between a pair of fixing portions provided on both sides in the circumferential direction rises up with the first end as the pivot point. The aforementioned back sheet covers the entire non-skin-facing side of the absorbent material. The back sheet includes a folded portion that is folded back at the first end towards the skin side of the pet and constitutes at least a part of the leak-proof wall portion. An absorbent article in which the distance between the end of the absorbent and the first end in the front-to-back direction is 5 mm or less.

2. The absorbent article according to claim 1, wherein the leak-proof wall portion is provided with an elastic member that expands and contracts in the circumferential direction, in a predetermined range including at least the central portion of the main body portion in the circumferential direction.

3. The absorbent article according to claim 1, wherein the height from the first end to the top of the leak-proof wall portion is 1 / 10 or more of the length of the main body portion in the front-rear direction.

4. The absorbent article according to claim 1, wherein the length of the main body in the front-to-back direction is shorter than the length of the main body in the waist direction.

5. The absorbent article according to claim 1, wherein each of the ends on both sides of the main body in the front-rear direction is configured as the first end.

6. The folded portion of the back sheet has a portion that is folded back at the top of the leak-proof wall and extends toward the base of the leak-proof wall. The absorbent article according to claim 1, wherein the aforementioned portion includes a liquid-impermeable material.

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