Absorbent article for pets

Abstract

An absorbent article for pets according to one embodiment is wrapped around the waist of a pet and worn, the absorbent article for pets comprising a body part including a front surface sheet, a back surface sheet, and an absorbent body including an absorbent core disposed therebetween. At least one set of a first sheet and a second sheet that are adjacent to each other in the thickness direction outside the absorbent core among a plurality of sheets constituting the body part is provided with a non-joined region in which the first sheet and the second sheet are not joined. When a first portion positioned on one side in the short direction with respect to a center line passing through the center of the body part in the short direction and a second portion positioned on the other side in the short direction with respect to the center line are defined, the area of a first non-joined region included in the first portion of the non-joined region is different from the area of a second non-joined region included in the second portion of the non-joined region when viewed from the thickness direction.

Description

Absorbent article for pets

[0007] ,

[0001] The present disclosure relates to an absorbent article for pets.

[0002] Patent Document 1 discloses an absorbent article for pets that is used by being wound around the torso of pets such as dogs and cats. This absorbent article for pets is suitably used for pets whose urethral orifice is located in front of the base of the hind legs, and includes a liquid-permeable surface layer, a liquid-impermeable back surface layer, an absorber disposed between the surface layer and the back surface layer, and a pair of three-dimensional gather portions that rise from the surface layer.

[0003] Japanese Patent Application Laid-Open No. 2012-205579

[0004] When an absorbent article for pets as described above is worn on a pet for a long time, friction may occur due to displacement or the like of the absorbent article for pets with respect to the pet's body, and there is a risk of chafing or the like on the pet's body.

[0005] An object of the present disclosure is to provide an absorbent article for pets that can reduce friction between a pet's body and the absorbent article for pets.

[0006] An absorbent article for pets according to one aspect is an absorbent article for pets that is worn by being wound around the torso of a pet, has a horizontally long shape having a longitudinal direction and a lateral direction, includes a surface sheet disposed on the skin side, a back sheet disposed on the non-skin side, and an absorber including an absorbent core disposed between the surface sheet and the back sheet, and has a main body portion. Among a plurality of sheets constituting the main body portion, in at least one set of a first sheet and a second sheet that are adjacent to each other in the thickness direction orthogonal to the longitudinal direction and the lateral direction outside the absorbent core, a non-bonding region is provided in which the first sheet and the second sheet are not joined so that the second sheet is free with respect to the first sheet. When a first portion located on one side in the lateral direction with respect to a center line extending in the longitudinal direction through the center of the main body portion in the lateral direction and a second portion located on the other side in the lateral direction with respect to the center line in the main body portion are defined, when viewed from the thickness direction, the area of a first non-bonding region included in the first portion of the non-bonding region is different from the area of a second non-bonding region included in the second portion of the non-bonding region.

[0007] According to various aspects of this disclosure, it is possible to provide pet absorbent articles that can reduce friction between a pet's body and the pet absorbent article.

[0008] This is a schematic perspective view of an absorbent pet article according to one embodiment. This is a plan view of the absorbent pet article shown in Figure 1, viewed from the skin side. This is a plan view of the absorbent pet article shown in Figure 1, viewed from the non-skin side. This is a cross-sectional view of the absorbent pet article along line A-A in Figure 1. This is a cross-sectional view of the absorbent pet article along line B-B in Figure 1. This is a cross-sectional view of the absorbent pet article along line C-C in Figure 1. This is a plan view of the absorbent pet article of the first modified example, viewed from the non-skin side. This is a plan view of the absorbent pet article of the second modified example, viewed from the non-skin side. This is a plan view of the absorbent pet article of the third modified example, viewed from the non-skin side. This is a cross-sectional view of the absorbent pet article of the third modified example, viewed along line B-B in Figure 1. This is a cross-sectional view of the absorbent pet article of the fourth modified example, viewed along line B-B in Figure 1. This is a diagram showing an example of the arrangement of the non-jointed area of ​​the absorbent pet article of the seventh modified example.

[0009] The following embodiments are disclosed in this specification and the accompanying drawings.

[0010] [1] An absorbent article for pets that is wrapped around the body of a pet, comprising a main body having a horizontally elongated shape with a longitudinal direction and a transverse direction, a surface sheet disposed on the skin side, a back sheet disposed on the non-skin side, and an absorbent body including an absorbent core disposed between the surface sheet and the back sheet, wherein in at least one pair of first and second sheets that constitute the main body and are adjacent to each other in the thickness direction perpendicular to the longitudinal direction and the transverse direction outside the absorbent core, there is a non-joined region provided in which the first sheet and the second sheet are not joined so that the second sheet can be freed from the first sheet, In the case where the main body is defined as having a first portion located on one side in the short direction with respect to a center line that passes through the center of the main body in the short direction and extends in the long direction, and a second portion located on the other side in the short direction with respect to the center line, the absorbent article for pets is such that, when viewed from the thickness direction, the area of ​​the first non-jointed region included in the first portion of the non-jointed region is different from the area of ​​the second non-jointed region included in the second portion of the non-jointed region.

[0011] According to the absorbent pet article described in [1] above, the second sheet can be made detached from the first sheet in the non-bonded area. That is, when the pet's body rubs against the absorbent pet article in a position overlapping with the non-bonded area, the second sheet becomes detached from the first sheet and can move, thereby effectively reducing friction between the pet's body and the absorbent pet article. Furthermore, in the absorbent pet article described above, the proportion (area) of the non-bonded area differs between the front and rear in the short direction corresponding to the front-to-back direction when the absorbent pet article is attached to the pet (attached state). This allows the user (e.g., pet owner caring for the pet) to easily understand the front-to-back direction of the absorbent pet article based on the proportion of the non-bonded area, for example, when the front-to-back direction (front and rear) of the absorbent pet article during use is defined. Furthermore, if there is no designated front-to-back direction for using pet absorbent articles (i.e., if it can be used with either the first or second part facing forward), the effectiveness of the pet absorbent article can be enhanced by attaching it to the pet so that the area of ​​the non-jointed region of the first and second parts is larger on the side where the friction reduction effect is particularly desired. While it is possible to make the areas of the first and second non-jointed regions the same, by making the areas of the first and second non-jointed regions different, the above effect can be obtained while reducing the overall area of ​​the non-jointed region.

[0012] [2] The pet absorbent article according to [1], wherein the first portion is the front portion when the pet absorbent article is attached to the pet, the second portion is the rear portion when the pet absorbent article is attached, and the area of ​​the second non-bonded region is larger than the area of ​​the first non-bonded region.

[0013] According to the configuration described in [2] above, the non-jointed area is provided such that the proportion of the second non-jointed area in the rear part (the part where the pet's hind legs are prone to rubbing) is large when the device is attached, thereby effectively reducing friction against the pet's hind legs.

[0014] [3] The main body portion comprises a first leak-proof gather extending along one end of the first portion and a second leak-proof gather extending along the other end of the second portion, wherein the first leak-proof gather includes a pair of fixing portions arranged on one and the other side in the longitudinal direction and joined to the main body portion in a state where it is bent inward in the short direction, and a first upright portion that is upright between the pair of fixing portions along a first upright line extending in the longitudinal direction, and the second leak-proof gather includes a second upright portion configured to be upright so as to be bent inward or outward along a second upright line extending in the longitudinal direction, the absorbent pet article of [2].

[0015] According to the configuration of [3] above, the second leak-proof gather includes a second upright portion that can be folded outward in the short direction (i.e., to the rear), so that the pet's genitals and the second leak-proof gather (second upright portion) do not overlap and rub against each other. In addition to the structure of the second leak-proof gather described above, the proportion of the non-jointed area in the second portion is large, so that when the pet's genitals come into contact with the second portion while the pet is wearing it, friction of the pet's genitals can be effectively reduced.

[0016] [4] The main body comprises a first leak-proof gather that extends along one end of the first portion and stands up along a first upright line extending in the longitudinal direction and is expandable and contractible in the longitudinal direction, and a second leak-proof gather that extends along the other end of the second portion and stands up along a second upright line extending in the longitudinal direction and is expandable and contractible in the longitudinal direction, wherein the expansion and contraction of the first upright portion is configured to be stronger than the expansion and contraction of the second upright portion, the absorbent pet article of [2].

[0017] In the configuration described in [4] above, the elasticity of the second leak-proof gather at the rear is weaker than that of the first leak-proof gather at the front. As a result, the second part at the rear is less constricting against the pet's body compared to the first part at the front, making it easier for gaps to form between the pet absorbent material and the pet's body, and thus easier for friction to occur. In the configuration described in [4] above, the non-jointed area is provided such that the proportion of the second non-jointed area in the rear part is large, so friction that is likely to occur due to the above-mentioned causes can be effectively reduced.

[0018] [5] The pet absorbent article according to [1], wherein the first portion is the front portion when the pet absorbent article is attached to the pet, the second portion is the rear portion when the pet absorbent article is attached, and the area of ​​the first non-bonded region is larger than the area of ​​the second non-bonded region.

[0019] When worn, the pressure (tightening) of the absorbent material against the pet's body tends to be greater on the head side (front side) where the pet's circumference is longer, and this makes friction more likely to occur. According to the configuration of [5] above, the non-jointed area is provided such that the proportion of the first non-jointed area on the front part is large, so that friction that tends to occur due to the above-mentioned causes can be effectively reduced.

[0020] [6] The main body comprises a first leak-proof gather that extends along one end of the first portion and stands up along a first upright line extending in the longitudinal direction and is expandable and contractible in the longitudinal direction, and a second leak-proof gather that extends along the other end of the second portion and stands up along a second upright line extending in the longitudinal direction and is expandable and contractible in the longitudinal direction, wherein the expansion and contraction of the first upright portion is configured to be stronger than the expansion and contraction of the second upright portion, as described in [5].

[0021] In the configuration described in [6] above, the stretch strength of the front first leak-proof gather is stronger than that of the rear second leak-proof gather. As a result, by providing a non-jointed area such that the proportion of the first non-jointed area in the front first portion is large, the second sheet can be effectively separated from the first sheet in the first portion, thereby improving the friction reduction effect.

[0022] [7] The pet absorbent article according to any of [1] to [6], wherein the back sheet comprises a liquid-impermeable back film and a back nonwoven fabric positioned on the non-skin side of the back film, the first sheet being the back film and the second sheet being a sheet adjacent to the back film on the skin side.

[0023] According to the configuration described in [7] above, in the non-bonded area, the backing film can be separated from the sheet on the skin side from the backing film, thereby effectively reducing friction between the pet's body and the backing sheet (backing nonwoven fabric).

[0024] [8] The pet absorbent article according to [7], wherein the non-bonding region is not provided between the back film and the back nonwoven fabric.

[0025] The non-skin side of the backing film may have decorations (designs) that are visible to the user. If a non-bonding area is provided between the backing film and the backing nonwoven fabric, and the backing nonwoven fabric is configured to be detached (float) from the backing film, the visibility of the decorations will be impaired. Also, if the backing nonwoven fabric is configured to be detached from the backing film, sheet damage such as tearing of the backing nonwoven fabric from the backing film may occur more easily. The configuration in [8] above can be used to avoid the occurrence of such problems while obtaining the effects of the configuration in [7] described above.

[0026] [9] The back sheet comprises a liquid-impermeable back film and a back nonwoven fabric positioned on the non-skin side of the back film, wherein the first sheet is the back film and the second sheet is the back nonwoven fabric, an absorbent pet article according to any of [1] to [6].

[0027] According to the configuration described in [9] above, when the pet's body rubs against the nonwoven fabric on the back in a non-bonded area, the nonwoven fabric on the back can suitably detach from the back film and slide. As a result, the nonwoven fabric on the back moves in accordance with the pet's body, and friction between the nonwoven fabric on the back and the pet's body can be effectively reduced.

[0028]

[10] At both ends in the longitudinal direction of the non-joined region, the first sheet and the second sheet are joined to each other, as any of [1] to [9].

[0029] According to the configuration of

[10] above, by preventing the non-joined area from opening to the longitudinal end of the main body, fraying at the longitudinal end of the main body can be suppressed. Furthermore, if other materials (e.g., absorbent material or elastic thread) are placed between the first sheet and the second sheet, it is possible to prevent these other materials from being exposed from the longitudinal end of the main body. As a result, the robustness of the absorbent article for pets can be improved.

[0030]

[11] The main body portion includes one or more elastic members that are expandable and contractible in the longitudinal direction, the non-jointed region is arranged to overlap with the one or more elastic members in the thickness direction, and the one or more elastic members are arranged at positions different from the space between the first sheet and the second sheet, any of the pet absorbent articles of [1] to

[10] .

[0031] According to the configuration described in

[11] above, the portion of the main body where the non-jointed region is provided can be contracted by the expansion and contraction of one or more elastic members, thereby allowing the second sheet to be suitably separated from the first sheet in the non-jointed region. This improves the friction reduction effect of the non-jointed region.

[0032]

[12] The main body portion includes one or more elastic members that are expandable and contractible in the longitudinal direction, and the non-jointed region is arranged to be adjacent to the one or more elastic members in the short direction when viewed from the thickness direction, any of the pet absorbent articles of [1] to

[10] .

[0033] According to the configuration of

[12] above, the same effect as in

[11] above can be obtained.

[0034]

[13] The length of the non-joined region in the longitudinal direction is 1 / 3 or more of the length of the absorbent body in the longitudinal direction, any of the pet absorbent articles from [1] to

[12] .

[0035] According to the configuration described in

[13] above, by forming the non-jointed region as a region that extends beyond a certain length based on the length of the absorbent, a movable region (i.e., the range in which the second sheet can slide relative to the first sheet) can be suitably secured, and friction between the pet's body and the pet absorbent article can be effectively reduced.

[0036]

[14] The pet absorbent article according to

[13] , further comprising an engaging portion disposed on one of the two sides of the absorbent body in the longitudinal direction of the main body, which engages with the other side of the main body opposite to the one side when the pet absorbent article is attached to the pet, wherein the non-jointed region is disposed in the region between the outer end of the engaging portion and the end of the main body in the short direction.

[0037] According to the configuration described in

[14] above, the non-jointed area is positioned in an area that does not overlap with the engaging area, thereby suppressing positional changes of the engaging area caused by the non-jointed area in the worn state and preventing displacement of the absorbent pet product in the worn state.

[0038]

[15] Any pet absorbent article of [1] to

[13] , further comprising an engaging portion disposed on one side of the absorbent body in the longitudinal direction of the main body, which engages with the other side of the main body opposite to the one side when the pet absorbent article is attached to the pet, wherein the non-jointed region includes a portion that overlaps with the area where the engaging portion is provided in the short direction, and the non-jointed region is located between the engaging portion and the end of the absorbent body opposite to the one side in the longitudinal direction.

[0039] According to the configuration of

[15] above, the non-bonding region is arranged so as not to overlap at least the engaging portion and the portion that may be engaged with the engaging portion in the mounted state. As a result, in the mounted state, it is possible to suppress the position of the engaging portion from fluctuating due to the non-bonding region and the portion of the main body provided with the non-bonding region from being damaged due to the engagement by the engaging portion.

[0040]

[16] The absorbent article for pets according to any one of [1] to

[15] , wherein the non-bonding region is arranged outside the end of the absorbent core in the short direction.

[0041] In the mounted state, the front or rear edge of the main body portion is relatively likely to rub against the body of the pet. According to the configuration of

[16] above, by providing a non-bonding region near such an edge, the friction between the body of the pet and the absorbent article for pets can be effectively reduced.

[0042]

[17] The absorbent article for pets according to any one of [1] to

[16] , wherein the non-bonding region is arranged so as to overlap the absorber in the thickness direction.

[0043] According to the configuration of

[17] above, the air permeability in the mounted state can be improved by the non-bonding region overlapping the absorber. As a result, the humidity inside the absorbent article for pets in the mounted state can be released to the outside, and the occurrence of stuffiness and rash due to the humidity can be suppressed.

[0044]

[18] The absorbent article for pets according to any one of [1] to

[17] , wherein the non-bonding region has a plurality of regions separated from each other in the longitudinal direction.

[0045] According to the configuration of

[18] above, compared with the case of providing one long non-bonding region continuous in the longitudinal direction, the area of one continuous non-bonding region can be suppressed. As a result, it is possible to prevent the second sheet from being overly separated from the first sheet and suppress damage to the sheet (for example, peeling of the second sheet from the first sheet, etc.). [[ID=第十九]]

[0046]

[19] The absorbent article for pets according to any one of [1] to

[18] , further comprising a rigid sheet provided on at least one of one side and the other side of the absorber in the longitudinal direction, wherein the non-bonding region is arranged so as not to overlap with the rigid sheet.

[0047] In the configuration of

[19] above, rigidity is imparted to at least one of one side and the other side of the absorber in the longitudinal direction by the rigid sheet. As a result, when the absorbent article for pets is worn, the user can easily spread the absorbent article for pets by grasping the portion provided with the rigid sheet by hand. Further, by providing the non-bonding region avoiding such a rigid sheet, it is possible to prevent the above function of the rigid sheet from being inhibited by the non-bonding region. Further, if a non-bonding region is provided in a portion where the rigidity is enhanced by the rigid sheet, the friction generated between the sheets when the second sheet is separated from the first sheet becomes large, and there is a risk of sheet breakage. According to the configuration of

[19] above, such problems can also be avoided.

[0048]

[20] An absorbent article for pets that is wound around the body of a pet and worn, having a horizontally long shape having a longitudinal direction and a lateral direction, a front surface sheet disposed on the skin side, a back surface sheet disposed on the non-skin side, and an absorber including an absorbent core disposed between the front surface sheet and the back surface sheet, and having a main body portion, wherein among a plurality of sheets constituting the main body portion, in at least one set of a first sheet and a second sheet that are adjacent to each other in the thickness direction orthogonal to the longitudinal direction and the lateral direction outside the absorbent core, a non-bonding region is provided in which the first sheet and the second sheet are not joined so that the second sheet can be separated from the first sheet, and the area of the overlapping region of the non-bonding region that overlaps the absorber in the thickness direction is larger than the area of the non-overlapping region of the non-bonding region that does not overlap the absorber in the thickness direction.

[0049] According to the absorbent pet article described in

[20] above, the second sheet can be made detached from the first sheet in the non-bonded area. That is, when the pet's body rubs against the absorbent pet article in a position overlapping with the non-bonded area, the second sheet can be made detached from the first sheet and move, thereby effectively reducing friction between the pet's body and the absorbent pet article. Furthermore, in the absorbent pet article described above, an overlapping area is secured that overlaps with the absorbent material, thereby improving breathability in the worn state in the overlapping area. As a result, moisture inside the absorbent pet article can be released to the outside when worn, suppressing stuffiness and rashes caused by such moisture.

[0050]

[21] An absorbent pet article that is wrapped around the body of a pet, comprising a main body having a transverse shape having a longitudinal direction and a transverse direction, a surface sheet disposed on the skin side, a back sheet disposed on the non-skin side, and an absorbent body including an absorbent core disposed between the surface sheet and the back sheet, wherein in at least one pair of first and second sheets that constitute the main body and are adjacent to each other in the thickness direction perpendicular to the longitudinal direction and the transverse direction outside the absorbent core, there is a non-joined region in which the first sheet and the second sheet are not joined so that the second sheet can be freed from the first sheet, and in the region in which the first sheet and the second sheet face each other in the thickness direction, the area of ​​the non-joined region is larger than the area of ​​the joined region in which the first sheet and the second sheet are joined.

[0051] According to the pet absorbent article described in

[21] above, the second sheet can be made detached from the first sheet in the non-bonded area. That is, when a pet's body rubs against the pet absorbent article in a position overlapping with the non-bonded area, the second sheet can be made detached from the first sheet and move, thereby effectively reducing friction between the pet's body and the pet absorbent article. Furthermore, in the pet absorbent article described above, the area of ​​the non-bonded area is relatively larger than the area of ​​the bonded area where the two sheets are joined between the first and second sheets. As a result, a sufficient non-bonded area can be secured, and the friction reduction effect described above can be effectively obtained.

[0052]

[22] The non-jointed region includes a plurality of sub-regions extending in the longitudinal direction over the entire body portion in the longitudinal direction, and adjacent regions among the plurality of sub-regions are separated in the short direction via the joining region extending in the longitudinal direction over the entire body portion in the longitudinal direction, the pet absorbent article of

[21] .

[0053] According to the configuration described in

[22] above, multiple sub-regions enable friction reduction across the entire product (main body) in the longitudinal direction, while suppressing the issue of one non-jointed region becoming excessively long, and consequently, preventing sheet tearing due to a decrease in sheet strength in the non-jointed region.

[0054]

[23] An absorbent article for pets that is wrapped around the body of a pet, comprising a main body having a transverse shape having a longitudinal direction and a transverse direction, a surface sheet disposed on the skin side, a back sheet disposed on the non-skin side, and an absorbent body including an absorbent core disposed between the surface sheet and the back sheet, wherein in at least one pair of first and second sheets that constitute the main body and are adjacent to each other in the thickness direction perpendicular to the longitudinal direction and the transverse direction outside the absorbent core, there is a non-joined region in which the first sheet and the second sheet are not joined so that the second sheet can be freed from the first sheet, and the non-joined region includes a partial region extending in the longitudinal direction from the end of the main body in the longitudinal direction.

[0055] According to the absorbent pet article described in

[23] above, the second sheet can be made detached from the first sheet in the non-bonded area. That is, when the pet's body rubs against the absorbent pet article in a position overlapping with the non-bonded area, the second sheet becomes detached from the first sheet and can move, thereby effectively reducing friction between the pet's body and the absorbent pet article. Furthermore, in the absorbent pet article described above, when the absorbent pet article is attached to a pet, a non-bonded area (partial area) is provided in the area where one end and the other end in the longitudinal direction overlap. Since the area where the ends of the main body overlap is relatively rigid, friction with the pet's body is likely to occur, but by providing the partial area described above, friction can be effectively reduced.

[0056]

[24] The pet absorbent article according to

[23] , further comprising an engaging portion disposed on one of the two sides of the absorbent body in the longitudinal direction of the main body, which engages with the other side of the main body opposite to the one side when the pet absorbent article is attached to the pet, wherein the portion has a portion that overlaps with the engaging portion in the thickness direction, and the portion of the engaging portion that is included within 10 mm inward in the short direction from both ends in the short direction of the engaging portion has a portion that overlaps with a joining region in the thickness direction where the first sheet and the second sheet are joined.

[0057] According to the configuration described in

[24] above, a friction reduction effect can be obtained by providing a non-jointed region (partial region) at a position that overlaps with the relatively rigid engaging portion, while overlapping the portion along the short end of the engaging portion with the jointed region, thereby suppressing positional fluctuations of the engaging portion caused by the non-jointed region in the worn state and suppressing the occurrence of displacement of the pet absorbent article in the worn state.

[0058] [Embodiments] Embodiments of the present disclosure will be described in detail below with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant descriptions are 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.

[0059] Figure 1 is a schematic perspective view of an absorbent pet article 1 according to one embodiment (hereinafter, "absorbent pet article" is simply referred to as "absorbent article"). Figure 2 is a plan view of the absorbent article 1 as seen from the skin side Z1. Figure 3 is a plan view of the absorbent article 1 as seen from the non-skin side Z2. Figure 4 is a cross-sectional view of the absorbent article 1 along the line A-A in Figure 1. Figure 5 is a cross-sectional view of the absorbent article 1 along the line B-B in Figure 1. Figure 6 is a cross-sectional view of the absorbent article 1 along the line C-C in Figure 1. The absorbent article 1 shown in Figures 1 to 6 is a disposable diaper that absorbs pet urine.

[0060] Figure 1 shows the absorbent article 1 in its natural state. The natural state means that no external force is applied to the absorbent article 1. Figures 2 and 3 show the absorbent article 1 in its unfolded state. The unfolded state means that the absorbent article 1 has been stretched to a state in which no wrinkles are formed. The skin-side Z1 is the side that faces the pet's skin when the absorbent article 1 is attached to the pet, and the non-skin-side Z2 is the side that faces away from the pet's skin when attached. In the following description, the person who attaches the absorbent article 1 to the pet is referred to as the "user". Typically, the user is the pet's owner. In the following description, unless otherwise specified, the positional relationships in the unfolded state will be described.

[0061] In this specification, "pet" broadly encompasses vertebrates and invertebrates, and typically includes companion animals such as dogs, cats, rabbits, and hamsters. The absorbent article 1 is particularly suitable for use with male pets whose urethral opening is located anterior to the base of their hind legs. As shown in Figure 2, the absorbent article 1 extends in a short direction X, which is aligned along the anterior-posterior direction of the pet (the direction connecting the head and hindquarters), and in a long direction Y, which is aligned along the circumference of the pet's body. The short direction X and the long direction Y are perpendicular to each other. The thickness direction Z is perpendicular to the short direction X and the long direction Y and includes a skin-facing side Z1 that faces the pet's skin when worn, and a non-skin-facing side Z2 that faces away from the pet's skin when worn. The absorbent article 1 is wrapped around the pet's body.

[0062] The absorbent article 1 comprises a main body portion 2. The main body portion 2 has a roughly rectangular (horizontally elongated) planar shape with a short side direction X and a long side direction Y. The four corners of the main body portion 2 may be cut so that the width of the main body portion 2 in the short side direction X is narrowed. The main body portion 2 has a front edge 3 located on one end in the short side direction X and a rear edge 4 located on the other end in the short side direction X. When the absorbent article 1 is attached to a pet, the front edge 3 is located on the front leg side of the pet and the rear edge 4 is located on the hind leg side of the pet. In the following description, the direction from the rear edge 4 toward the front edge 3 may be referred to as the front side, and the direction from the front edge 3 toward the rear edge 4 may be referred to as the rear side. The main body portion 2 also has a first side edge 5 located on one end in the long side direction Y and a second side edge 6 located on the other end in the long side direction Y. Furthermore, the main body portion 2 has a first portion 2A positioned on one side of the short direction X (the front side in this embodiment) with respect to the center line CL1 of the main body portion 2 in the short direction X, and a second portion 2B positioned on the other side of the short direction X (the rear side in this embodiment) with respect to the center line CL1 of the main body portion 2.

[0063] As shown in Figures 1 to 6, the main body 2 includes a surface sheet 10, a back sheet 20, an absorbent 30, and a pair of leak-proof gathers 40. The surface sheet 10 forms 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 10 has liquid permeability, allowing, for example, the pet's urine to pass through to the absorbent 30. The surface sheet 10 is located approximately in the center in the short direction X. Examples of nonwoven fabrics that make up the surface sheet 10 include air-through nonwoven fabric, spunbond nonwoven fabric, or point-bond nonwoven fabric. The surface sheet 10 is joined to the back film 21 and the absorbent 30 with, for example, a hot-melt adhesive.

[0064] The backing sheet 20 constitutes the outer surface of the main body 2 when worn and is positioned on the non-skin side Z2. The backing sheet 20 includes a liquid-impermeable backing film 21 and a backing nonwoven fabric 22 positioned on the non-skin side Z2 than the backing film 21. In the short direction X, the width of the backing film 21 is narrower than the width of the backing nonwoven fabric 22, and the backing nonwoven fabric 22 extends further than the backing film 21 on both sides in the short direction X. In the short direction X, the backing film 21 may have substantially the same width as the backing nonwoven fabric 22. The backing nonwoven fabric 22 constitutes the outermost layer of the absorbent article 1. The backing film 21 is joined to the backing nonwoven fabric 22 and the absorbent body 30, for example, with a hot-melt adhesive.

[0065] The absorbent material 30 is positioned between the surface sheet 10 and the back sheet 20. The absorbent material 30 is located approximately in the center of the main body 2 and absorbs pet urine. The absorbent material 30 has a roughly rectangular shape that extends in the longitudinal direction Y.

[0066] The main body 2 includes a first end 7 located on one side in the longitudinal direction Y, a second end 8 located on the other end in the longitudinal direction Y, and a central portion 9 located between the first end 7 and the second end 8. The first end 7 is a region located between the absorbent 30 and the first side edge 5 in the longitudinal direction Y. The second end 8 is a region located between the absorbent 30 and the second side edge 6 in the longitudinal direction Y. The central portion 9 is a region located between the first end 7 and the second end 8 in the longitudinal direction Y. The width of the first end 7 in the short direction X may be narrowed as it approaches the first side edge 5, and the width of the second end 8 in the short direction X may be narrowed as it approaches the second side edge 6. In this case, narrowing the widths of the first end 7 and the second end 8 makes it easier for the user to grasp the first end 7 and the second end 8.

[0067] In one embodiment, the absorbent body 30 includes an absorbent core 31 containing water-absorbing pulp and a polymeric superabsorbent (SAP), and a core wrap 32 which is a sheet covering the surface of the absorbent core 31. The core wrap 32 may be configured such that, for example, a single sheet (e.g., tissue) is folded into a bag shape to wrap around the absorbent core 31, or multiple sheets may be combined to wrap around the absorbent core 31 as a whole. In either case, the core wrap 32 is arranged to cover the skin-side Z1 and non-skin-side Z2 surfaces of the absorbent core 31. As the pulp of the absorbent core 31, for example, chemical pulp, cellulose fibers, rayon, acetate, and other cellulose fibers are used. As the polymeric superabsorbent, for example, starch-based, acrylic acid-based, or amino acid-based particulate or fibrous polymers are used. The absorbent body 30 may also be an SAP sheet that does not contain pulp and is mainly composed of SAP.

[0068] A pair of leak-proof gathers 40 are provided on the surface sheet 10 and are spaced apart from each other in the short-side direction X. The pair of leak-proof gathers 40 are positioned to cover both sides of the surface sheet 10 in the short-side direction X from the skin-side Z1 and extend in the longitudinal direction Y along the entire length of the main body 2. The pair of leak-proof gathers 40 are partially joined to the surface sheet 10 or the back sheet 20 on the outside of the absorbent body 30 in the short-side direction X. By standing upright relative to the surface sheet 10, the pair of leak-proof gathers 40 prevent pet urine excreted in the absorbent body 30 from leaking in the short-side direction X. The pair of leak-proof gathers 40 include a front leak-proof gather 41 (first leak-proof gather) provided along the front edge 3 and a rear leak-proof gather 51 (second leak-proof gather) provided along the rear edge 4. The pair of leak-proof gathers 40 may also be formed by winding the back nonwoven fabric 22 back toward the surface sheet 10 on the outside of the main body portion 2 in the short direction X. In this case, a portion of the back nonwoven fabric 22 wound toward the surface sheet 10 constitutes the pair of leak-proof gathers 40, and the other portion of the back nonwoven fabric 22 constitutes the back sheet 20 of the main body portion 2.

[0069] In one embodiment, the front leak-proof gather 41 includes a side sheet 42 partially fixed to the surface sheet 10 or the back sheet 20, and an elastic member 43 joined to the side sheet 42. The rear leak-proof gather 51 includes a side sheet 52 partially fixed to the surface sheet 10 or the back sheet 20, and an elastic member 53 joined to the side sheet 52. Each of the pair of side sheets 42, 52 is made of a nonwoven fabric that is water-repellent or hydrophobic. For example, the side sheets 42, 52 are made of spunlace nonwoven fabric, spunbond nonwoven fabric, thermal bond nonwoven fabric, meltblown nonwoven fabric, SMS nonwoven fabric, needle-punched nonwoven fabric, air-through nonwoven fabric, etc.

[0070] Each of the pair of side sheets 42 and 52 has an elongated shape that is long in the longitudinal direction Y, and extends in the longitudinal direction Y along the entire length of the main body 2. As shown in Figures 4 to 6, the pair of leak-proof gathers 40 extend outward from the back film 21. More specifically, the outer edge of the front leak-proof gather 41 in the short direction X coincides with one outer edge of the back nonwoven fabric 22 in the short direction X, and together with the other outer edge of the back nonwoven fabric 22, it forms the front edge 3. The outer edge of the rear leak-proof gather 51 in the short direction X coincides with the other outer edge of the back nonwoven fabric 22 in the short direction, and together with the other outer edge of the back nonwoven fabric 22, it forms the rear edge 4.

[0071] As shown in Figures 2 to 6, the side sheet 42 includes a fixed portion 45 joined to the surface sheet 10 or the back sheet 20, and an upright portion 46 (first upright portion) not joined to the surface sheet 10. Upright lines 45a, 45b, and 45c are formed at the boundary between the fixed portion 45 and the upright portion 46.

[0072] The upright line 45a is positioned between the center line CL1 in the short direction X of the main body 2 and the front edge 3, and extends in the longitudinal direction Y. For example, the upright line 45a is positioned between the edge of the absorber 30 on the front side and the front edge 3. The upright line 45a is the boundary line between the fixed part 45 and the upright part 46 in the short direction X, and serves as the upright pivot point for the upright part 46 in the short direction X. Note that the upright line 45a may partially overlap the absorber 30 when viewed from the thickness direction Z.

[0073] The upright line 45b is positioned between the center line CL2 in the longitudinal direction Y of the main body 2 and the first side edge 5, and extends in the short direction X. For example, the upright line 45b is positioned between the edge on the first side edge 5 side of the absorber 30 in the longitudinal direction Y. The upright line 45b is the boundary line between the fixed part 45 and the upright part 46 in the longitudinal direction Y, and serves as the upright support point for the upright part 46 in the longitudinal direction Y. Note that the upright line 45b may partially overlap the absorber 30 when viewed from the thickness direction Z. Note that the center line CL2 in the longitudinal direction Y of the main body 2 coincides with the center line in the longitudinal direction Y of the absorber 30.

[0074] The upright line 45c is positioned between the center line CL2 in the longitudinal direction Y of the main body 2 and the second side edge 6, and extends in the short direction X. For example, the upright line 45c is positioned between the edge of the absorber 30 on the side of the second side edge 6 in the longitudinal direction Y. The upright line 45c is the boundary line between the fixed part 45 and the upright part 46 in the longitudinal direction Y, and serves as the upright support point for the upright part 46 in the longitudinal direction Y. Note that the upright line 45c may partially overlap the absorber 30 when viewed from the thickness direction Z.

[0075] As described above, the first region R1 of the side sheet 42, located on the first edge 5 side of the upright line 45b, is part of the fixing portion 45, and its entirety is joined to the first end 7 of the main body 2 by hot melt adhesive. Similarly, the second region R2 of the side sheet 42, located on the second edge 6 side of the upright line 45c, is also part of the fixing portion 45, and its entirety is joined to the second end 8 of the main body 2 by hot melt adhesive. Therefore, as shown in Figures 4 and 6, the first region R1 and the second region R2 of the side sheet 42 are fixed to the main body 2 and are non-upright regions.

[0076] In contrast, the upright portion 46 is positioned between the first region R1 and the second region R2 (a pair of fixed portions) and is an upright region that is not connected to the main body 2. The upright portion 46 is positioned inside the upright line 45a in the short-side direction X and can be upright between the first region R1 and the second region R2 with the upright line 45a as the uprighting fulcrum. Since the first region R1 and the second region R2 of the side sheet 42 are joined to the main body 2, the upright portion 46 is tilted inward in the short-side direction X when unfolded.

[0077] The inner portion of the upright portion 46 in the short direction X is folded back, and an elastic member 43 is positioned between the folded upright portion 46. Therefore, as shown in Figure 2, the elastic member 43 of the front leak-proof gather 41 is positioned along the inner edge of the upright portion 46. The elastic member 43 is joined to the side sheet 42 in an extended state in the longitudinal direction Y. The elastic member 43 is made of an elastic material such as rubber or spandex that can be contracted in the longitudinal direction.

[0078] As shown in Figure 5, the upright portion 46 of the side sheet 42 stands up on the outside of the absorbent body 30 in the short direction X, starting from the upright line 45a, when the elastic member 43 contracts in the longitudinal direction Y in its natural state. The upright portion 46 of the front leak-proof gather 41 stands up, preventing pet urine from leaking to the front side along the surface of the surface sheet 10.

[0079] The side sheet 52 includes a fixed portion 55 joined to the surface sheet 10 or the back sheet 20, and an upright portion 56 not joined to the surface sheet 10. An upright line 55a is formed at the boundary between the fixed portion 55 and the upright portion 56.

[0080] The upright line 55a is positioned between the center line CL1 in the short direction X of the main body 2 and the rear edge 4, and extends in the longitudinal direction Y. For example, the upright line 55a is positioned between the rear edge of the absorber 30 and the rear edge 4. The upright line 55a is the boundary line between the fixed portion 55 and the upright portion 56 in the short direction X, and serves as the upright pivot point for the upright portion 56 in the short direction X. In one embodiment, the upright line 55a extends over the entire area of ​​the main body 2 in the longitudinal direction Y. Note that the upright line 55a may partially overlap the absorber 30 when viewed from the thickness direction Z.

[0081] The upright portion 56 is positioned inside the upright line 55a in the short direction X and extends over the entire area of ​​the main body 2 in the long direction Y. The upright portion 56 is an upright region that is not connected to the main body 2. The upright portion 56 can be erected using the upright line 55a as the uprighting pivot point. In addition, similar to the side sheet 42, both sides of the side sheet 52 in the long direction Y may be joined to the main body 2. In this case, the upright portion 56 folds inward in the short direction X when unfolded.

[0082] The inner portion of the upright portion 56 in the short direction X is folded back, and an elastic member 53 is positioned between the folded upright portion 56. Therefore, as shown in Figure 2, the elastic member 53 of the rear leak-proof gather 51 is positioned along the inner edge of the upright portion 56. The elastic member 53 is joined to the side sheet 52 in an extended state in the longitudinal direction Y. The elastic member 53 is made of an elastic material such as rubber or spandex that can be contracted in the longitudinal direction.

[0083] As shown in Figures 4 to 6, the upright portion 56 of the side sheet 52 stands up on the outside of the absorbent body 30 in the short direction X, starting from the upright line 55a, when the elastic member 53 contracts in the longitudinal direction Y in its natural state. The upright portion 56 of the rear leak-proof gather 51 stands up, preventing pet urine from leaking down the surface of the surface sheet 10.

[0084] The maximum upright height H1 of the front leak-proof gather 41 relative to the main body 2 is the same as the maximum upright height H2 of the rear leak-proof gather 51 relative to the main body 2. The maximum upright height H1 corresponds to the height of the top of the front leak-proof gather 41 relative to the main body 2 when the front leak-proof gather 41 is standing perpendicular to the main body 2. In other words, the maximum upright height H1 can also be said to be the length along the surface of the front leak-proof gather 41 from the upright line 45a to the top of the upright portion 46 in a cross-section along the shorter direction X. Similarly, the maximum upright height H2 corresponds to the height of the top of the rear leak-proof gather 51 relative to the main body 2 when the rear leak-proof gather 51 is standing perpendicular to the main body 2. In other words, the maximum upright height H2 can also be said to be the length along the surface of the rear leak-proof gather 51 from the upright line 55a to the top of the upright portion 56 in a cross-section along the shorter direction X. Note that the maximum upright height H1 of the front leak-proof gather 41 may be different from the maximum upright height H2 of the rear leak-proof gather 51. For example, the maximum upright height H1 of the front leak-proof gather 41 may be higher than the maximum upright height H2 of the rear leak-proof gather 51. By making the maximum upright height H1 higher than the maximum upright height H2, when the absorbent article 1 is attached so that the front leak-proof gather 41 is positioned on the head side of the pet, the urine that is forcefully discharged from the pet can be blocked by the front leak-proof gather 41, thereby effectively suppressing urine leakage. Also, the maximum upright height H2 of the rear leak-proof gather 51 may be higher than the maximum upright height H1 of the front leak-proof gather 41. In this case, the urine flowing to the rear can be blocked by the rear leak-proof gather 51, thus effectively suppressing urine leakage.

[0085] The main body 2 further includes a plurality of elastic members 60 (elastic members) that are expandable and contractible in the longitudinal direction Y. The plurality of elastic members 60 are arranged between the surface sheet 10 and the back sheet 20 and extend in the longitudinal direction Y. The plurality of elastic members 60 impart elasticity to the main body 2 in the longitudinal direction Y. In one embodiment, the elastic members 60 are elastic threads. The elastic members 60 may also be stretchable nonwoven fabric or stretchable film. As shown in Figure 2, the elastic members 60 extend over the entire area of ​​the main body 2 in the longitudinal direction Y. This makes it possible to impart elasticity to the entire area of ​​the main body 2 in the longitudinal direction Y, and allows the main body 2 to contract to follow changes in the pet's body shape and posture. Therefore, the fit of the absorbent article 1 is effectively improved. Note that the elastic members 60 do not necessarily have to extend over the entire area of ​​the main body 2 in the longitudinal direction Y.

[0086] Multiple elastic members 60 are arranged along the short direction X. In one embodiment, the elastic members 60 may be arranged at equal intervals along the short direction X between the front edge 3 and the rear edge 4. This makes it possible to improve the uniformity of the expansion and contraction force of the main body 2 in the short direction X.

[0087] Multiple elastic members 60 are positioned between the surface sheet 10 and the back sheet 20, and are bonded to the surface sheet 10 or the back sheet 20 using hot melt adhesive while stretched in the longitudinal direction Y. In particular, as shown in Figure 5, a portion of the multiple elastic members 60 is positioned between the absorbent body 30 (the core wrap 32 on the non-skin side Z2) and the back sheet 20. That is, a portion of the multiple elastic members 60 overlaps the absorbent body 30 when viewed from the thickness direction Z, and extends in the longitudinal direction Y so as to straddle the absorbent body 30. As a result, the absorbent body 30 is lifted over its entire surface in the longitudinal direction Y by the contractile force of these elastic members 60, so that the sagging of the absorbent body 30 is suppressed when urine is absorbed by the absorbent body 30. As described above, when the multiple elastic members 60 are positioned on the non-skin side Z2 of the absorbent body 30, the multiple elastic members 60 prevent the absorbent body 30 from being hindered in absorbing urine. Furthermore, since the multiple elastic members 60 are prevented from directly contacting the pet's body when the absorbent article 1 is attached, the comfort of wearing the absorbent article 1 can be improved. Also, some of the multiple elastic members 60 overlap with the engagement portion 70 and rigid sheets 91 and 92, which will be described later, when viewed from the thickness direction Z. In addition, an intermediate sheet made of nonwoven fabric (i.e., a separate sheet provided on the outside of the core wrap 32 that constitutes the absorbent body 30) may be placed between some of the multiple elastic members 60 and the absorbent body 30.

[0088] Other portions of the multiple elastic members 60 are positioned between the surface sheet 10 and the back sheet 20 and are bonded to the surface sheet 10 or the back sheet 20 using a hot melt adhesive while stretched in the longitudinal direction Y. These elastic members 60 are positioned outside the absorber 30 in the short direction X and do not overlap the absorber 30 when viewed from the thickness direction Z.

[0089] The multiple elastic members 60 may be joined to the surface sheet 10 or back sheet 20 without using a hot melt adhesive. For example, the multiple elastic members 60 may be joined to the surface sheet 10 or back sheet 20 by sonic processing.

[0090] The absorbent article 1 further comprises an engaging portion 70. The engaging portion 70 is positioned on one of the two sides of the absorbent body 30 in the longitudinal direction Y of the main body 2, and is a member that engages with the other side of the main body 2 opposite to the aforementioned side when worn. In one embodiment, as shown in Figures 1, 2, and 4, the engaging portion 70 has a rectangular shape that is long in the short direction X and is provided at the first end 7 of the first portion 2A. The engaging portion 70 is provided on the outer surface of the back sheet 20. The engaging portion 70 is, for example, a mechanical fastener having a number of hooks, and is capable of engaging with the surface sheet 10 from the skin side Z1. The engaging portion 70 may also be capable of engaging with a target portion provided on the surface sheet 10.

[0091] As shown in Figures 3 and 5, the main body 2 is provided with a non-joined area 80. The non-joined area 80 is provided between at least one pair of first and second sheets that are adjacent to each other in the thickness direction Z outside the absorbent core 31, among the multiple sheets that make up the main body 2. The non-joined area 80 is an area where the first sheet and the second sheet are not joined so that the second sheet can be freed from the first sheet. When joining sheets together with a hot-melt adhesive, for example, small gaps where the hot-melt adhesive is not applied can inevitably occur between spirally sprayed hot-melt adhesive (wires). The non-joined area 80 is different from such unintentionally occurring small gaps; it is an area where the hot-melt adhesive is intentionally not applied so that the second sheet can be freed from the first sheet over a certain area.

[0092] In this embodiment, the multiple sheets constituting the main body 2 are a surface sheet 10, a back sheet 20 (back film 21, back nonwoven fabric 22), and a core wrap 32. However, the multiple sheets constituting the main body 2 may include sheet members other than those described above. In this embodiment, a rectangular non-jointed region 80 is provided between the back film 21 (first sheet) and the back nonwoven fabric 22 (second sheet) when viewed from the thickness direction Z. That is, the back film 21 and the back nonwoven fabric 22 are joined to each other by a hot melt adhesive or the like in the area outside the non-jointed region 80, but are not joined to each other in the non-jointed region 80. In other words, while the back film 21 and the back nonwoven fabric 22 would normally be joined to each other over their entire surface, by deliberately not providing a hot melt adhesive or the like in a certain range of area, a non-jointed region 80 is formed in which the back film 21 and the back nonwoven fabric 22 are not joined. For this reason, in the non-jointed region 80, the back nonwoven fabric 22 is free from the back film 21 and can slide in a direction perpendicular to the thickness direction Z. Furthermore, the shape of the non-jointed region 80 as viewed from the thickness direction Z is not limited to a rectangular shape.

[0093] As shown in Figure 3, the non-jointed region 80 is formed in a rectangular shape with edges along the longitudinal direction Y and the transverse direction X. That is, the non-jointed region 80 has a front edge 80a facing the front edge 3, a rear edge 80b facing the rear edge 4, a side edge 80c facing the first side edge 5, and a side edge 80d facing the second side edge 6. In one embodiment, the side edge 80c is located inward in the longitudinal direction Y from the end 30c on the first side edge 5 side of the absorber 30. The side edge 80d is located inward in the longitudinal direction Y from the end 30d on the second side edge 6 side of the absorber 30. The front edge 80a overlaps with the absorber 30. That is, the front edge 80a is located behind the front end 30a of the absorber 30. The rear edge 80b is located outside the absorber 30. In other words, the rear edge 80b is located behind the rear end 30b of the absorber 30. Therefore, the distance from the center line CL1 to the rear edge 80b is longer than the distance from the center line CL1 to the front edge 80a.

[0094] The non-jointed region 80, viewed from the thickness direction Z, includes a first non-jointed region 81 included in the first portion 2A and a second non-jointed region 82 included in the second portion 2B. The area of ​​the first non-jointed region 81 is different from the area of ​​the second non-jointed region 82. In this embodiment, as described above, the distance from the center line CL1 to the rear edge 80b is longer than the distance from the center line CL1 to the front edge 80a, so the area of ​​the second non-jointed region 82 is larger than the area of ​​the first non-jointed region 81.

[0095] As shown in Figures 1 and 3, the absorbent article 1 includes rigid sheets 91 and 92. Rigid sheet 91 is provided on one side of the absorber 30 in the longitudinal direction Y (the side with the first edge 5). In this embodiment, the rigid sheet 91 is positioned between the engaging portion 70 and the first edge 5 when viewed from the thickness direction Z. Rigid sheet 92 is provided on the other side of the absorber 30 in the longitudinal direction Y (the side with the second edge 6). In this embodiment, the rigid sheet 92 is positioned near the second edge 6 and along the second edge 6.

[0096] The rigid sheets 91 and 92 are members that provide rigidity to the main body 2. The rigid sheets 91 and 92 have a rectangular shape that is long in the shorter direction X, and are made of, for example, nonwoven fabric or film. By making the rigid sheets 91 and 92 of nonwoven fabric, the rigid sheets 91 and 92 can be easily formed.

[0097] The rigid sheets 91 and 92 may be formed into sheets by coating them with a resin such as a non-tack type hot melt adhesive or a UV-curing resin. A coating method using a coater may be employed. Alternatively, other coating methods (comb-shaped coating, omega-shaped coating, spiral coating, or curtain coating, etc.) may be employed, in which case it is preferable that the ratio of the uncoated area to the coated area is 10% or less. When using a non-tack type hot melt adhesive, it is preferable that the basis weight of the hot melt adhesive after curing is 15 gsm or more greater than the basis weight of the surrounding area. In this embodiment, the basis weight of the back film 21 is, for example, 15 gsm. In this case, the presence or absence of the rigid sheet can be confirmed by touch. Furthermore, the 180-degree peel strength (room temperature tackiness after curing) of the hot melt adhesive after curing, measured in accordance with JIS Z0237, is, for example, 1.0 N / 25 mm or less, and preferably 0 N / 25 mm. In this case, the rigid sheet will not become sticky when touched by the user. Furthermore, the rigid sheet becomes less prone to deformation. For example, the width in the short direction X of the area to which the hot melt adhesive is applied is more than half the width of the absorber 30 in the short direction X, and the length in the long direction Y of the said area is 5 mm or more.

[0098] The rigid sheet 91 is provided at the first end 7 and extends in the short direction X along the first side edge 5. The outer edge of the rigid sheet 91 in the longitudinal direction Y may overlap with the first side edge 5 when viewed from the thickness direction Z, or it may be located inside the main body portion 2 relative to the first side edge 5. The rigid sheet 91 is positioned between the surface sheet 10 and the back sheet 20 (back film 21). In the portion where the rigid sheet 91 is provided, the elastic member 60 is positioned between the rigid sheet 91 and the back film 21. However, the elastic member 60 may be positioned between the rigid sheet 91 and the surface sheet 10. The rigid sheet 91 is bonded to the surface sheet 10 and the back film 21 with a hot melt adhesive. The rigid sheet 91 may be provided on the surface (skin-facing side) of the surface sheet 10 or on the outer surface (non-skin-facing side) of the back sheet 20.

[0099] The rigid sheet 92 is provided at the second end 8 and extends in the short direction X along the second side edge 6. The outer edge of the rigid sheet 92 in the longitudinal direction Y may overlap with the second side edge 6 when viewed from the thickness direction Z, or it may be located inside the main body portion 2 relative to the second side edge 6. The rigid sheet 92 is disposed between the surface sheet 10 and the back sheet 20 (back film 21), similar to the rigid sheet 91. In the portion where the rigid sheet 92 is provided, the elastic member 60 is disposed between the rigid sheet 92 and the back film 21. However, the elastic member 60 may be disposed between the rigid sheet 92 and the surface sheet 10. The rigid sheet 92 is bonded to the surface sheet 10 and the back film 21 with a hot melt adhesive. The rigid sheet 92 may be provided on the surface of the surface sheet 10 or on the outer surface of the back sheet 20.

[0100] As described above, the absorbent article 1 allows the back nonwoven fabric 22 (second sheet) to be free from the back film 21 (first sheet) in the non-bonded area 80. That is, when a pet's body rubs against the absorbent article 1 in a position overlapping with the non-bonded area 80, the back nonwoven fabric 22 becomes free from the back film 21 and can move, thereby effectively reducing friction between the pet's body and the absorbent article 1. Furthermore, in the absorbent article 1, the proportion (area) of the non-bonded area 80 is configured to be different in the front and back in the short direction X corresponding to the front-to-back direction when worn. As a result, when the front-to-back direction (front and back) of the absorbent article 1 during use is defined (for example, when the structure of the leak-proof gather 40 is different in the front and back as in this embodiment, and a suitable front-to-back direction for use is defined), the user can easily grasp the front-to-back direction of the absorbent article 1 based on the proportion of the non-bonded area 80 (i.e., the difference in area between the first non-bonded area 81 and the second non-bonded area 82).

[0101] Furthermore, although the front-to-back direction during use is defined in this embodiment, if the front-to-back direction during use of the absorbent article 1 is not defined (i.e., if it can be used with either the first part 2A or the second part 2B facing forward), the effectiveness of the absorbent article 1 can be enhanced by attaching the absorbent article 1 to the pet such that the second part 2B (i.e., the side with a larger area of ​​non-bonding region 80) is the side where the friction reduction effect is particularly desired. It is also conceivable to make the areas of the first non-bonding region 81 and the second non-bonding region 82 the same, but by making the areas of the first non-bonding region 81 and the second non-bonding region 82 different, the above effect can be obtained while reducing the overall area of ​​the non-bonding region 80. That is, by securing the area of ​​the side where friction reduction is most desired, while reducing the area of ​​the opposite side, the overall area of ​​the non-bonding region 80 can be reduced. As a result, adverse effects caused by making the area of ​​the non-bonding region 80 too large (for example, peeling of the second sheet from the first sheet) can be suppressed.

[0102] In the absorbent article 1, the area of ​​the second non-bonding region 82 provided in the rear portion (second portion 2B) when worn is larger than the area of ​​the first non-bonding region 81 provided in the front portion (first portion 2A) when worn. With the above configuration, the non-bonding region 80 is provided such that the proportion of the second non-bonding region 82 in the rear portion (the part where the pet's hind legs are prone to rubbing) is large when worn, so friction against the pet's hind legs can be effectively reduced. In this case, the first non-bonding region 81 does not have to exist. That is, the non-bonding region 80 (second non-bonding region 82) may be provided only in the rear second portion 2B, and the area of ​​the first non-bonding region 81 may be 0.

[0103] In the absorbent article 1, the front leak-proof gather 41 and the rear leak-proof gather 51 have the structure described above. With this, since the rear leak-proof gather 51 is configured to include an upright portion 56 that can be folded outward in the short direction X (i.e., to the rear), it is possible to prevent the pet's genitals from overlapping and rubbing against the rear leak-proof gather 51 (upright portion 56). In addition to the structure of the rear leak-proof gather 51 described above, the proportion of the non-jointed area 80 is increased in the rear second portion 2B, so when the pet's genitals come into contact with the second portion 2B while the item is being worn, friction between the pet's genitals and the absorbent article 1 can be effectively reduced. In other words, by simultaneously employing the structure of the rear leak-proof gather 51 described above and the configuration of the non-jointed area 80 (configuration with a large area of ​​the second non-jointed area 82), friction between the pet's genitals and the absorbent article 1 can be effectively reduced when the pet's genitals come into contact with the second portion 2B while the item is being worn.

[0104] In the absorbent article 1, the non-bonded region 80 is provided between the backing film 21 and the backing nonwoven fabric 22. With this configuration, when the pet's body rubs against the backing nonwoven fabric 22 in the non-bonded region 80, the backing nonwoven fabric 22 can suitably detach from the backing film 21 and slide. As a result, the backing nonwoven fabric 22 moves in accordance with the pet's body, and friction between the backing nonwoven fabric 22 and the pet's body can be effectively reduced.

[0105] In the absorbent article 1, the first sheet (backside film 21) and the second sheet (backside nonwoven fabric 22) are joined to each other at both ends of the non-joined region 80 in the longitudinal direction Y. That is, in the region on the first side edge 5 side of the side edge 80c and the region on the second side edge 6 side of the side edge 80d, the backside film 21 and the backside nonwoven fabric 22 are joined to each other by a hot melt adhesive or the like. By configuring the non-joined region 80 so that it does not open to the ends of the main body 2 in the longitudinal direction Y (first side edge 5 or second side edge 6), fraying at the ends of the main body 2 in the longitudinal direction Y can be suppressed. Although not applicable to this embodiment, if other materials (e.g., absorbent material or elastic thread, etc.) are placed between the first sheet and the second sheet, it is possible to prevent these other materials from being exposed from the ends of the main body 2 in the longitudinal direction Y. As a result, the robustness of the absorbent article 1 can be increased.

[0106] As shown in Figure 5, in the absorbent article 1, the main body 2 includes elastic members 60 that can expand and contract in the longitudinal direction Y (in this embodiment, a plurality of elastic members 60 arranged between the surface sheet 10, the absorbent 30, and the side sheets 42, 52 and the back film 21), and the non-jointed region 80 is arranged to overlap with at least one (multiple in this embodiment) elastic member 60 in the thickness direction Z. The elastic member 60 is positioned at a different location from the first sheet (back film 21) and the second sheet (back nonwoven fabric 22). With the above configuration, the expansion and contraction of at least one elastic member 60 makes it possible to contract the portion of the main body 2 where the non-jointed region 80 is provided, thereby making it possible to suitably separate the second sheet from the first sheet in the non-jointed region 80. This makes it possible to improve the friction reduction effect of the non-jointed region 80.

[0107] Furthermore, as shown in Figure 5, in this embodiment, the multiple elastic members 60 do not overlap with the non-jointed region 80 in the thickness direction Z, and include elastic members 60 that are adjacent to the non-jointed region 80 in the short direction X when viewed from the thickness direction Z. An elastic member 60 adjacent to the non-jointed region 80 is an elastic member 60 provided so close to the non-jointed region 80 that the effect of contraction in the longitudinal direction Y by the elastic member 60 extends to the non-jointed region 80. In the example shown in Figure 5, two elastic members 60A may correspond to elastic members 60 adjacent to the non-jointed region 80 in the short direction X. Thus, even if the elastic members 60 are not necessarily arranged to overlap with the non-jointed region 80 in the thickness direction Z, the above-mentioned effect (improvement of friction reduction effect due to expansion and contraction of the elastic members 60) can be obtained by providing elastic members 60A adjacent to the non-jointed region 80. In this embodiment, the elastic member 60A is positioned in a space different from the space where the non-jointed region 80 is formed (between the first sheet and the second sheet). However, elastic members 60A adjacent to the non-jointed region 80 may be positioned in the same space as the space where the non-jointed region 80 is formed.

[0108] As shown in Figure 3, in the absorbent article 1, the length L1 in the longitudinal direction Y of the non-jointed region 80 (one continuous non-jointed region) is preferably 1 / 3 or more of the length L2 in the longitudinal direction Y of the absorbent body 30. Furthermore, as in this embodiment, it is more preferable that the length L1 is 1 / 2 or more of the length L2. With the above configuration, by forming the non-jointed region 80 as a region that extends a certain amount or more with respect to the length of the absorbent body 30, a movable area (i.e., the range in which the second sheet can slide relative to the first sheet) can be suitably secured, and friction between the pet's body and the absorbent article 1 can be effectively reduced. Also, from a similar viewpoint, the length in the short direction X of one continuous non-jointed region 80 is preferably 1 / 3 or more of the length in the short direction X of the absorbent body 30, and more preferably 1 / 2 or more of the length in the short direction X of the absorbent body 30.

[0109] As shown in Figure 3, the non-jointed area 80 includes the portion that overlaps with the area R where the engaging portion 70 is provided in the short direction X, and the non-jointed area 80 is located in the longitudinal direction Y between the engaging portion 70 and the end portion 30d of the absorber 30 opposite to one side (the side where the engaging portion 70 is provided). In other words, the non-jointed area 80 is not provided in the portion of the absorber 30 between the end portion 30d and the second side edge 6 in the area R (i.e., the portion that may engage with the engaging portion 70). With the above configuration, the non-jointed area 80 is arranged so that it does not overlap with the engaging portion 70 or the portion that may engage with the engaging portion 70 in the installed state. This makes it possible to suppress the position of the engaging portion 70 from changing due to the non-jointed area 80 in the installed state, and to prevent damage to the portion of the main body 2 where the non-jointed area 80 is provided due to engagement by the engaging portion 70.

[0110] As shown in Figures 3 and 5, in the absorbent article 1, the non-bonded region 80 is arranged to overlap with the absorbent material 30 in the thickness direction Z. Here, the absorbent material 30 is a particularly thick part of the main body 2, and is therefore a part that is particularly prone to stuffiness when worn. With the above configuration, by providing the non-bonded region 80 to overlap with the absorbent material 30, the breathability when worn can be improved. As a result, the humidity inside the absorbent article 1 when worn can be released to the outside, and the occurrence of stuffiness and rash caused by this humidity can be suppressed.

[0111] As shown in Figure 3, the non-jointed area 80 is positioned so as not to overlap with the rigid sheets 91 and 92. In the above configuration, the rigid sheets 91 and 92 provide rigidity to at least one side (both in this embodiment) of the absorber 30 in the longitudinal direction Y, either the first edge 5 side or the other side (second edge 6 side). This allows the user to easily spread out the absorbent article 1 by grasping the portion where the rigid sheets 91 and 92 are provided when installing the absorbent article 1. Furthermore, by providing the non-jointed area 80 while avoiding the rigid sheets 91 and 92, it is possible to prevent the non-jointed area 80 from hindering the above-mentioned functions of the rigid sheets 91 and 92. Moreover, if the non-jointed area 80 were provided in a portion where the rigidity has been increased by the rigid sheets 91 and 92, the friction between the sheets would increase when the second sheet becomes detached from the first sheet, potentially causing damage to the sheets. As described above, by arranging the non-jointed area 80 so as not to overlap with the rigid sheets 91 and 92, it is possible to avoid such problems.

[0112] As shown in Figure 3, the non-jointed region 80 has an overlapping region that overlaps with the absorber 30 in the thickness direction Z, and a non-jointed region that does not overlap with the absorber. In this embodiment, the overlapping region is the entirety of the first non-jointed region 81 and the region of the second non-jointed region 82 that overlaps with the absorber 30. The non-jointed region is the region of the second non-jointed region 82 that does not overlap with the absorber 30 (the portion behind the end 30b of the absorber 30). Viewed from the thickness direction Z, the area of ​​the overlapping region is larger than the area of ​​the non-jointed region. That is, most of the non-jointed region 80 is arranged to overlap with the absorber 30. With the above configuration, by ensuring an overlapping region that overlaps with the absorber 30, the breathability in the worn state can be improved in the overlapping region. As a result, the humidity inside the absorbent article 1 in the worn state can be released to the outside, and the occurrence of stuffiness and rash caused by such humidity can be suitably suppressed. Furthermore, in order to obtain the above effect, the non-jointed region 80 may be composed solely of the superimposed region. That is, the non-jointed region 80 may be provided in such a way that there is no non-superimposed region. In other words, the entire non-jointed region may overlap with the absorber 30.

[0113] [Variations] The form of the absorbent article of this disclosure is not limited to the embodiments described above. Various materials and shapes can be used for the materials and shapes of each component, not limited to those described above. In addition, some of the components included in the embodiments described above may be changed or omitted, or other components may be added. Several variations of the absorbent article will be described below. The components of the embodiments described above and the various variations described thereafter can be combined as appropriate to the extent that they do not contradict each other.

[0114] (First Modification) Figure 7 is a plan view of the absorbent article 1A according to the first modification, as seen from the non-skin side Z2. As shown in Figure 7, the absorbent article 1A differs from the absorbent article 1 in that it has a non-jointed region 80A instead of the non-jointed region 80. The non-jointed region 80A has a plurality of regions 80A1 and 80A2 that are separated from each other in the longitudinal direction Y (for example, two regions). For example, regions 80A1 and 80A2 are arranged in a rectangular shape of the same size and are arranged symmetrically with respect to the center line CL2. Regions 80A1 and 80A2 are spaced apart from each other in the longitudinal direction Y. That is, between region 80A1 and region 80A2, there is a jointed region in which a first sheet (for example, a back film 21) and a second sheet (for example, a back nonwoven fabric 22) are joined to each other by a hot melt adhesive or the like. In absorbent article 1A, the first non-bonded region 81 is separated into a portion included in region 80A1 and a portion included in region 80A2. Similarly, the second non-bonded region 82 is also separated into a portion included in region 80A1 and a portion included in region 80A2.

[0115] In a configuration like that of absorbent article 1A, where the non-jointed region 80A has multiple regions 80A1, 80A2 separated from each other in the longitudinal direction Y, the area of ​​a single continuous non-jointed region (i.e., the individual areas of regions 80A1, 80A2) can be reduced compared to the case where a single long non-jointed region (for example, the non-jointed region 80 of absorbent article 1) is provided in the longitudinal direction Y. As a result, it is possible to prevent the second sheet (backside nonwoven fabric 22) from becoming too loose from the first sheet (backside film 21) and to suppress damage to the sheets (for example, peeling of the second sheet from the first sheet). In the example of Figure 7, the non-jointed region 80A was divided into two regions 80A1, 80A2, but the non-jointed region may be divided into three or more regions.

[0116] (Second Modification) Figure 8 is a plan view of the absorbent article 1B according to the second modification, as seen from the non-skin side Z2. As shown in Figure 8, the absorbent article 1B differs from the absorbent article 1 in that it has a non-jointed region 80B instead of the non-jointed region 80. The non-jointed region 80B differs from the non-jointed region 80 in that the area of ​​the first non-jointed region 81 is larger than the area of ​​the second non-jointed region 82 (i.e., the relationship between the areas is reversed compared to the non-jointed region 80). As an example, the arrangement of the non-jointed region 80B is the same as the arrangement of the non-jointed region 80, but reversed with respect to the center line CL2.

[0117] When worn, the pressure (tightening) of the absorbent material against the pet's body tends to be greater on the head side (front side) where the pet's circumference is longer, and this makes friction more likely to occur. With a configuration such as absorbent material 1B, where the area of ​​the first non-jointed area 81 is larger than the area of ​​the second non-jointed area 82, the non-jointed area 80B is provided such that the proportion of the first non-jointed area 81 in the front part of the main body 2 is large, thereby effectively reducing the friction that tends to occur due to the above-mentioned causes.

[0118] (Third Modification) Figure 9 is a plan view of the absorbent article 1C according to the third modification, as seen from the non-skin side Z2. Figure 10 is a cross-sectional view of the absorbent article 1C along the line B-B in Figure 1. As shown in Figures 9 and 10, the absorbent article 1C differs from the absorbent article 1 in that it has a non-jointed area 80C instead of a non-jointed area 80. The non-jointed area 80C is arranged along the front edge 3 of the main body 2 over substantially the entire area in the longitudinal direction Y. As an example, as shown in Figure 10, the non-jointed area 80C is provided between the edge of the back film 21 in the short direction X and the back nonwoven fabric 22, and between the portions of the side sheets 42, 52 outside the edge of the back film 21 in the short direction X and the back nonwoven fabric 22.

[0119] From a first perspective, the non-jointed region 80C is located in the region between the outer end 70a of the engaging portion 70 (the front end in this example) and the end of the main body portion 2 (the front edge 3 in this example) in the short direction X. With this configuration, even if the non-jointed region 80C is located over substantially the entire length direction Y as in this example, the non-jointed region 80C is located in a region that does not overlap with the engaging portion 70 at least. Therefore, in the mounted state, fluctuations in the position of the engaging portion 70 caused by the non-jointed region are suppressed, and the occurrence of displacement of the absorbent article 1C in the mounted state is suppressed.

[0120] From a second perspective, the non-bonding region 80C is positioned outside (front of) the end of the absorbent core 31 (in this example, the end 30a of the absorbent body 30) in the short direction X. When worn, the front edge 3 of the main body 2 is relatively prone to rubbing against the pet's body. With the above configuration, by providing the non-bonding region 80C near this front edge 3, friction between the pet's body and the absorbent article 1C (the portion of the main body 2 along the front edge 3) can be effectively reduced.

[0121] Furthermore, when worn, the rear edge 4 of the main body 2 is also relatively prone to rubbing against the pet's body. Therefore, the non-jointed area 80C may be positioned behind the rear end 30b of the absorbent core in the short direction X. In this case, by providing the non-jointed area 80C near the rear edge 4, friction between the pet's body and the absorbent article 1C (the portion of the main body 2 along the rear edge 4) can be effectively reduced.

[0122] Furthermore, to prevent the portion along the front edge 3 or rear edge 4 of the main body 2 (the flap portion) from flapping outwards when worn, users may fold the flap portion inwards when attaching it to their pet. Also, the flap portion may be folded inwards against the user's intention. In this case, the flap portion will come into strong contact with the pet's skin. Therefore, if a non-jointing area is not provided in the flap portion, there is a risk of increased friction between the inwardly folded flap portion and the pet's body. In contrast, by providing a non-jointing area 80C in the flap portion as described above, the friction between the inwardly folded flap portion and the pet's body can be effectively reduced.

[0123] Furthermore, as in the case of the non-jointed region 80C of the absorbent article 1C, the non-jointed region may be composed of only one of the first non-jointed region and the second non-jointed region (in this example, only the first non-jointed region 81).

[0124] (Fourth Modification) Figure 11 is a cross-sectional view of the fourth modification of the absorbent article 1D along the line B-B in Figure 1. As shown in Figure 11, the absorbent article 1D differs from the absorbent article 1 in that it has a non-jointed region 80D instead of the non-jointed region 80. The non-jointed region 80D is, for example, located in the same region as the non-jointed region 80 when viewed from the thickness direction Z, but differs from the non-jointed region 80 in that it is located between the back film 21 (first sheet) and the sheet adjacent to the back film 21 on the skin side Z1 (in this example, the core wrap 32 on the non-skin side Z2 and a part of the surface sheet 10 that is behind the absorbent 30). In addition, in the absorbent article 1D, the multiple elastic members 60 that overlap with the absorbent 30 in the thickness direction Z are located between the surface sheet 10 and the core wrap 32 on the skin side Z1.

[0125] According to the above configuration, in the non-bonded region 80D, the backing film 21 can be separated from the sheet on the skin side Z1 relative to the backing film 21. In other words, the entire backing sheet 20 can be made slidable relative to the sheet on its skin side Z1. This effectively reduces friction between the pet's body and the backing sheet 20 (backing nonwoven fabric 22).

[0126] The non-bonding regions may be provided in multiple layers at positions that overlap in the thickness direction Z. For example, a non-bonding region 80 (between the back film 21 and the back nonwoven fabric 22) and a non-bonding region 80D (between the back film 21 and the sheet on its skin side Z1) may be provided simultaneously.

[0127] However, if a configuration is used in which no non-bonding region is provided between the backing film 21 and the backing nonwoven fabric 22, as in absorbent article 1D (i.e., a configuration in which a non-bonding region 80D is provided but no non-bonding region 80 is provided), the following effects are achieved. The non-skin side Z2 of the backing film 21 may have decorations (designs) that are visible to the user. If a non-bonding region 80 is provided between the backing film 21 and the backing nonwoven fabric 22, and the backing nonwoven fabric 22 is configured to be detached (float) from the backing film 21, the visibility of the decorations may be impaired. Also, if the backing nonwoven fabric 22 is configured to be detached from the backing film 21, sheet damage such as tearing of the backing nonwoven fabric 22 from the backing film 21 may occur more easily. On the other hand, with the above configuration, friction between the pet's body and the backing sheet 20 (backing nonwoven fabric 22) can be effectively reduced while avoiding the occurrence of such problems.

[0128] (Fifth Modification) In the absorbent article 1 (configured so that the area of ​​the second non-jointed region 82 is larger than the area of ​​the first non-jointed region 81), the expansion and contraction of the upright portion 46 of the front leak-proof gather 41 may be configured to be stronger than the expansion and contraction of the upright portion 56 of the rear leak-proof gather 51. Here, the expansion and contraction of the upright portions 46 and 56 refers to the expansion and contraction in the longitudinal direction Y. Furthermore, such expansion and contraction force of the upright portion in the longitudinal direction Y contributes to the stability of the upright portion in its upright state. That is, the stronger the expansion and contraction of the upright portion, the more stable the upright portion in its upright state becomes, and the less likely the upright portion is to fall over. Therefore, the fact that the expansion and contraction of the upright portion 46 is stronger than the expansion and contraction of the upright portion 56 substantially means that the upright portion 46 can maintain a more stable upright state (less likely to fall over) than the upright portion 56.

[0129] As one means of realizing the above configuration, the magnification of the elastic member 43 provided on the front upright portion 46 (the value obtained by dividing the length of the elastic member 43 after it has been stretched when fixed to the upright portion 46 by the natural length of the elastic member 43) may be greater than the magnification of the elastic member 53 provided on the rear upright portion 56 (the value obtained by dividing the length of the elastic member 53 after it has been stretched when fixed to the upright portion 56 by the natural length of the elastic member 53).

[0130] As another means of achieving the above configuration, the width (maximum standing height H1, H2) and the length in the longitudinal direction Y of the standing parts 46 and 56 may be adjusted. The smaller the ratio of the width to the length in the longitudinal direction Y of the standing part (width / length in the longitudinal direction Y), the more elongated the standing part will be. And the more elongated the standing part is relatively, the more unstable the standing position of the standing part becomes, and the more likely it is to fall over in the short direction X. Therefore, the ratio of the width to the length in the longitudinal direction Y of the standing part 46 (H1 / length in the longitudinal direction Y of the standing part 46) may be greater than the ratio of the width to the length in the longitudinal direction Y of the standing part 56 (H2 / length in the longitudinal direction Y of the standing part 56).

[0131] As described above, in a configuration where the expansion and contraction of the upright portion 46 is stronger than that of the upright portion 56, the expansion and contraction strength of the rear leak-proof gather 51 is weaker than that of the front leak-proof gather 41. As a result, the tightness against the pet's body in the rear second portion 2B is looser compared to the front first portion 2A, making it easier for a gap to form between the absorbent article 1 and the pet's body, and thus easier for friction to occur. In the fifth modified example, in addition to the above configuration, the area of ​​the rear second non-jointed region 82 is larger than the area of ​​the first non-jointed region 81. In this way, the non-jointed region 80 is provided such that the proportion of the rear second non-jointed region 82 is larger, so that friction that is likely to occur due to the above-mentioned causes can be effectively reduced.

[0132] (Sixth Modification) In the absorbent article 1B (configured so that the area of ​​the first non-jointed region 81 is larger than the area of ​​the second non-jointed region 82), similar to the fifth modification, the expansion and contraction of the upright portion 46 of the front leak-proof gather 41 may be configured to be stronger than the expansion and contraction of the upright portion 56 of the rear leak-proof gather 51. In this case, the front first portion 2A expands and contracts more than the rear second portion 2B due to the front leak-proof gather 41, which expands and contracts more strongly than the rear leak-proof gather 51. According to the sixth modification, by providing a non-jointed region 80 such that the proportion of the first non-jointed region 81 of the front first portion 2A, which expands and contracts more, is increased, the second sheet can be effectively separated from the first sheet in the first portion 2A, thereby improving the friction reduction effect.

[0133] (Seventh Modification) Figure 12 shows the positional relationship between the back film 21, the back nonwoven fabric 22, and the bonding region 90 between them of the absorbent article 1E of the seventh modification. The absorbent article 1E differs from the absorbent article 1 in that it has a non-bonding region 80E instead of a non-bonding region 80 between the back film 21 and the back nonwoven fabric 22.

[0134] In the absorbent article 1E, multiple (for example, 20) bonding regions 90 are arranged spaced apart from each other, extending in the longitudinal direction Y from the first side edge 5 to the second side edge 6 between the backing film 21 and the backing nonwoven fabric 22. Each of the multiple bonding regions 90 is provided with approximately equal width. The bonding regions 90 are, for example, areas to which hot melt adhesive is applied. The non-bonding regions 80E consist of areas that overlap with the backing film 21 in the thickness direction Z, excluding the bonding regions 90, and having a width greater than a certain amount (for example, a width greater than the width of each bonding region 90).

[0135] In the example shown in Figure 12, five bonding regions 90 (first bonding regions 90A) are arranged adjacent to each other in the center of the short direction X. Additionally, one bonding region 90 is positioned at a predetermined width distance from the front edge 21a of the back film 21, and five adjacent bonding regions 90 (second bonding regions 90B) are provided at a predetermined width distance inward (rearward) from this bonding region 90. Three bonding regions 90 are arranged between the first bonding region 90A and the second bonding region 90B with a relatively large separation width. As a result, four relatively large partial regions 83 are formed between the first bonding region 90A and the second bonding region 90B where the back film 21 and the back nonwoven fabric 22 are not bonded to each other. Furthermore, two relatively small partial regions 83 are provided in front of the second bonding region 90B.

[0136] Similarly, one bonding region 90 is positioned at a predetermined width distance from the rear edge 21a of the back film 21, and five adjacent bonding regions 90 (third bonding region 90C) are provided at a predetermined width distance inward (front) from the first bonding region 90. Three bonding regions 90 are positioned between the first bonding region 90A and the third bonding region 90C with a relatively large separation width. As a result, four relatively large sub-regions 83 are formed between the first bonding region 90A and the third bonding region 90C. In addition, two relatively small sub-regions 83 are provided behind the third bonding region 90C.

[0137] The non-jointed region 80E is formed by the above-mentioned multiple (for example, 12) sub-regions 83.

[0138] In the absorbent article 1E, within the region where the backing film 21 (first sheet) and the backing nonwoven fabric 22 (second sheet) face each other in the thickness direction Z (i.e., the region where the backing film 21 exists when viewed from the thickness direction Z), the area of ​​the non-jointed region 80E (i.e., the total area of ​​all sub-regions 83) is larger than the area of ​​the joined region (i.e., the total area of ​​the 20 joined regions 90). With such an absorbent article 1E, the backing nonwoven fabric 22 can be made free from the backing film 21 in the non-jointed region 80E. That is, when the pet's body rubs against the absorbent article 1E at a position overlapping with the non-jointed region 80E, the backing nonwoven fabric 22 can be made free from the backing film 21 and move, thereby effectively reducing friction between the pet's body and the absorbent article 1E. Furthermore, in the absorbent article 1E, the area of ​​the non-jointed region 80E is relatively larger than the area of ​​the joined region 90 where the two sheets are joined together between the backing film 21 and the backing nonwoven fabric 22. This ensures that a sufficient non-jointed area 80E is secured, thereby effectively obtaining the friction reduction effect described above.

[0139] Furthermore, the non-jointed region 80E includes a plurality of sub-regions 83 that extend continuously in the longitudinal direction Y across the entire main body 2 in the longitudinal direction Y. Among the plurality of sub-regions 83, adjacent regions are separated in the short direction X via a jointed region 90 that extends continuously in the longitudinal direction Y across the entire main body 2 in the longitudinal direction Y. With the above configuration, the plurality of sub-regions 83 make it possible to achieve a friction reduction effect over the entire product (main body 2) in the longitudinal direction Y, while suppressing the issue of one non-jointed region becoming too long, and consequently, preventing sheet tearing from occurring due to a decrease in sheet strength in the non-jointed region.

[0140] Furthermore, the non-jointed region 80E includes a partial region 83 that extends in the longitudinal direction Y from the ends of the main body 2 in the longitudinal direction Y (in this example, the first side edge 5 and the second side edge 6). With the above configuration, when the absorbent article 1E is attached to a pet, the non-jointed region 80E (partial region 83) is provided in the region where one end and the other end in the longitudinal direction Y overlap. Since the area where the ends of the main body 2 overlap is relatively rigid, friction with the pet's body is likely to occur, but by providing the partial region 83 as described above, friction can be effectively reduced.

[0141] Furthermore, the partial region 83 has a portion that overlaps with the engaging portion 70 in the thickness direction Z. In this example, the eight partial regions 83 provided on both sides of the first joint portion 90A overlap with the engaging portion 70. In addition, the portions along both ends (outer ends 70a) in the short direction X of the engaging portion 70 (the portions included within a range of 10 mm inward from the outer ends 70a in the short direction X) have a portion that overlaps with the joint region 90 (second joint portion 90B or third joint portion 90C) in the thickness direction Z. With the above configuration, a friction reduction effect can be obtained by providing a non-jointed region 80E (partial region 83) in a position that overlaps with the relatively rigid engaging portion 70, and by overlapping the portion along the end (outer end 70a) in the short direction X of the engaging portion 70 with the joint region 90, the movement of the engaging portion 70 caused by the non-jointed region 80E in the mounted state can be suppressed, and the occurrence of displacement of the absorbent article 1E in the mounted state can be suppressed.

[0142] The non-bonding region may be provided in locations other than those shown in the above embodiments and modifications. For example, the non-bonding region may be provided between the surface sheet 10 and the absorbent 30 (the core wrap 32 on the skin side Z1, or the intermediate sheet placed between the surface sheet 10 and the absorbent 30). For example, the non-bonding region may be provided between the surface sheet 10 and the absorbent 30 at a location where the pet's genitals are likely to come into contact when the product is worn (a location determined based on the body shape of the pet targeted by the absorbent article, for example, the first part 2A or the second part 2B). In this case, friction between the pet's genitals and the absorbent article (surface sheet 10) can be effectively reduced on the inside of the absorbent article when it is worn.

[0143] 1, 1A, 1B, 1C, 1D, 1E... Absorbent material (absorbent material for pets), 2... Main body, 2A... First part, 2B... Second part, 10... Front sheet, 20... Back sheet, 21... Back film (First sheet), 22... Back nonwoven fabric (Second sheet), 30... Absorbent material, 31... Absorbent core, 41... Front leak-proof gather (First leak-proof gather), 45, 55... Fixing part, 46... Standing part (First standing part) ), 51... rear leak-proof gather (second leak-proof gather), 60, 60A... elastic member, 70... engaging part, 70a... outer end, 80, 80A, 80B, 80C, 80D, 80E... non-joined area, 81... first non-joined area, 82... second non-joined area, 83... partial area, 90... joined area, 91, 92... rigid sheet, X... short side direction, Y... long side direction, Z... thickness direction, Z1... skin side, Z2... non-skin side.

Claims

1. An absorbent article for pets that is wrapped around the body of a pet, comprising a main body having a horizontally elongated shape with a longitudinal direction and a transverse direction, a surface sheet disposed on the skin side, a back sheet disposed on the non-skin side, and an absorbent body including an absorbent core disposed between the surface sheet and the back sheet, wherein in at least one pair of first and second sheets that constitute the main body and are adjacent to each other in the thickness direction perpendicular to the longitudinal direction and the transverse direction outside the absorbent core, there is a non-joined region provided where the first sheet and the second sheet are not joined so that the second sheet can be freed from the first sheet, In the case where the main body is defined as having a first portion located on one side in the short direction with respect to a center line that passes through the center of the main body in the short direction and extends in the long direction, and a second portion located on the other side in the short direction with respect to the center line, the absorbent article for pets is such that, when viewed from the thickness direction, the area of ​​the first non-jointed region included in the first portion of the non-jointed region is different from the area of ​​the second non-jointed region included in the second portion of the non-jointed region.

2. The pet absorbent article according to claim 1, wherein the first portion is the front portion when the pet absorbent article is attached to the pet, the second portion is the rear portion when the pet absorbent article is attached, and the area of ​​the second non-bonded region is larger than the area of ​​the first non-bonded region.

3. The pet absorbent article according to claim 2, wherein the main body portion has a first leak-proof gather extending along one end of the first portion and a second leak-proof gather extending along the other end of the second portion, the first leak-proof gather includes a pair of fixing portions arranged on one and the other side in the longitudinal direction and joined to the main body portion in a state where it is bent inward in the short direction, and a first upright portion that is upright between the pair of fixing portions along a first upright line extending in the longitudinal direction, and the second leak-proof gather includes a second upright portion configured to be upright so as to be bent inward or outward along a second upright line extending in the longitudinal direction.

4. The pet absorbent article according to claim 2, wherein the main body comprises a first leak-proof gather extending along one end of the first portion and standing upright along a first upright line extending along the longitudinal direction and having a first upright portion that is expandable and contractible in the longitudinal direction, and a second leak-proof gather extending along the other end of the second portion and standing upright along a second upright line extending along the longitudinal direction and having a second upright portion that is expandable and contractible in the longitudinal direction, wherein the expansion and contraction of the first upright portion is configured to be stronger than the expansion and contraction of the second upright portion.

5. The pet absorbent article according to claim 1, wherein the first part is the front part when the pet absorbent article is attached to the pet, the second part is the rear part when the pet absorbent article is attached, and the area of ​​the first non-bonded region is larger than the area of ​​the second non-bonded region.

6. The pet absorbent article according to claim 5, wherein the main body comprises a first leak-proof gather extending along one end of the first portion and standing upright along a first upright line extending along the longitudinal direction and having a first upright portion that is expandable and contractible in the longitudinal direction, and a second leak-proof gather extending along the other end of the second portion and standing upright along a second upright line extending along the longitudinal direction and having a second upright portion that is expandable and contractible in the longitudinal direction, wherein the expansion and contraction of the first upright portion is configured to be stronger than the expansion and contraction of the second upright portion.

7. The pet absorbent article according to claim 1, wherein the back sheet comprises a liquid-impermeable back film and a back nonwoven fabric disposed on the non-skin side of the back film, the first sheet being the back film, and the second sheet being a sheet adjacent to the back film on the skin side.

8. The pet absorbent article according to claim 7, wherein the non-bonding region is not provided between the backing film and the backing nonwoven fabric.

9. The pet absorbent article according to claim 1, wherein the backing sheet comprises a liquid-impermeable backing film and a backing nonwoven fabric positioned on the non-skin side of the backing film, the first sheet being the backing film and the second sheet being the backing nonwoven fabric.

10. The absorbent article for pets according to claim 1, wherein the first sheet and the second sheet are joined to each other at both ends in the longitudinal direction of the non-joined region.

11. The pet absorbent article according to claim 1, wherein the main body includes one or more elastic members that are expandable and contractible in the longitudinal direction, the non-jointed region is arranged to overlap with the one or more elastic members in the thickness direction, and the one or more elastic members are arranged at positions different from the space between the first sheet and the second sheet.

12. The pet absorbent article according to claim 1, wherein the main body includes one or more elastic members that are expandable and contractible in the longitudinal direction, and the non-jointed region is arranged to be adjacent to the one or more elastic members in the short direction when viewed from the thickness direction.

13. The length of the non-joined region in the longitudinal direction is 1 / 3 or more of the length of the absorbent body in the longitudinal direction, as described in claim 1.

14. The pet absorbent article according to claim 13, further comprising an engaging portion disposed on one of the two sides of the absorbent body in the longitudinal direction of the main body, which engages with the other side of the main body opposite to the one side when the pet absorbent article is attached to the pet, wherein the non-jointed region is located in the region between the outer end of the engaging portion and the end of the main body in the short direction.

15. The pet absorbent article according to claim 1, further comprising an engaging portion disposed on one side of the absorbent body in the longitudinal direction of the main body, which engages with the other side of the main body opposite to the one side when the pet absorbent article is attached to the pet, wherein the non-jointed region includes a portion that overlaps with the area where the engaging portion is provided in the short direction, and the non-jointed region is located between the engaging portion and the end of the absorbent body opposite to the one side in the longitudinal direction.

16. The pet absorbent article according to claim 1, wherein the non-bonded region is located outside the end of the absorbent core in the short direction.

17. The non-bonded region is arranged to overlap with the absorbent in the thickness direction, as described in claim 1, for use as an absorbent article for pets.

18. The pet absorbent article according to claim 1, wherein the non-joined region has a plurality of regions separated from each other in the longitudinal direction.

19. The pet absorbent article according to claim 1, further comprising a rigid sheet provided on at least one of one side and the other side of the absorbent in the longitudinal direction, wherein the non-bonded region is arranged so as not to overlap with the rigid sheet.

20. An absorbent pet article that is wrapped around the body of a pet, comprising a main body having a horizontally elongated shape with a longitudinal direction and a transverse direction, a surface sheet disposed on the skin side, a back sheet disposed on the non-skin side, and an absorbent body including an absorbent core disposed between the surface sheet and the back sheet, wherein in at least one pair of first and second sheets that constitute the main body and are adjacent to each other in the thickness direction perpendicular to the longitudinal direction and the transverse direction outside the absorbent core, there is a non-jointed region in which the first sheet and the second sheet are not joined so that the second sheet can be freed from the first sheet, and the area of ​​the overlapping region of the non-jointed region that overlaps with the absorbent body in the thickness direction is larger than the area of ​​the non-overlapping region of the non-jointed region that does not overlap with the absorbent body in the thickness direction.

21. An absorbent pet article that is wrapped around the body of a pet, comprising a main body having a horizontally elongated shape with a longitudinal direction and a transverse direction, a surface sheet disposed on the skin side, a back sheet disposed on the non-skin side, and an absorbent body including an absorbent core disposed between the surface sheet and the back sheet, wherein in at least one pair of first and second sheets constituting the main body that are adjacent to each other in the thickness direction perpendicular to the longitudinal direction and the transverse direction outside the absorbent core, there is a non-joined region in which the first sheet and the second sheet are not joined so that the second sheet can be freed from the first sheet, and in the region in which the first sheet and the second sheet face each other in the thickness direction, the area of ​​the non-joined region is larger than the area of ​​the joined region in which the first sheet and the second sheet are joined.

22. The non-jointed region includes a plurality of sub-regions extending in the longitudinal direction over the entire main body in the longitudinal direction, and adjacent regions among the plurality of sub-regions are separated in the short direction via the jointed region extending in the longitudinal direction over the entire main body in the longitudinal direction, as described in claim 21.

23. An absorbent pet article that is wrapped around the body of a pet, comprising a main body having a transverse shape with a longitudinal direction and a transverse direction, and comprising a surface sheet disposed on the skin side, a back sheet disposed on the non-skin side, and an absorbent body including an absorbent core disposed between the surface sheet and the back sheet, wherein at least one pair of first and second sheets constituting the main body, adjacent to each other in the thickness direction perpendicular to the longitudinal direction and the transverse direction outside the absorbent core, are provided with a non-joined region in which the first sheet and the second sheet are not joined so that the second sheet can be freed from the first sheet, and the non-joined region includes a partial region extending in the longitudinal direction from the end of the main body in the longitudinal direction.

24. The pet absorbent article according to claim 23, further comprising an engaging portion disposed on one of the two sides of the absorbent body in the longitudinal direction of the main body, which engages with the other side of the main body opposite to the one side when the pet absorbent article is attached to the pet, wherein the portion has a portion that overlaps with the engaging portion in the thickness direction, and the portion of the engaging portion that is included within 10 mm inward in the short direction from both ends in the short direction has a portion that overlaps with the joining region where the first sheet and the second sheet are joined in the thickness direction.

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