Auxiliary absorbent article

Abstract

To inhibit or prevent a flap of an auxiliary absorbent article from being engaged with a securing member.SOLUTION: An auxiliary absorbent article 1 arranged inside an underpants type absorbent article for receiving excrement from a wearer includes a flap 24 where a top sheet and a back sheet are joined directly or indirectly outside an edge 226 of an absorber 22. A securing member 4 used for the engagement with the inner surface of the underpants type absorbent article is arranged on a back surface of the back sheet. A securing separation distance 461 between the edge 226 of the absorber 22 and an edge 46 of the securing member 4 the closest to the edge 226 is 1-2 times the length 462 of the securing member 4 in a longitudinal direction of the auxiliary absorbent article 1. The length in the longitudinal direction of the flap 24 is 1-2 times the length 462 of the securing member 4.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The present invention relates to an auxiliary absorbent article that is placed inside a pant-type absorbent article to receive exudates from a wearer. [Background technology]

[0002] Conventionally, an auxiliary absorbent article has been attached to the inside of a pants-type absorbent article, such as a pants-type disposable diaper, and when the auxiliary absorbent article receives excrement such as urine, only the auxiliary absorbent article is replaced, thereby extending the usage time of the pants-type absorbent article. Such auxiliary absorbent articles are disclosed in, for example, Patent Documents 1 to 4. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2009-195309 A [Patent Document 2] Patent Publication No. 2022-56249 [Patent Document 3] Patent Publication No. 2022-149885 [Patent Document 4] JP 2022-149886 A Summary of the Invention [Problem to be solved by the invention]

[0004] Meanwhile, a fastening member for attaching the auxiliary absorbent article to a pant-type absorbent article is provided on the back surface of the auxiliary absorbent article. When attaching the auxiliary absorbent article to the pant-type absorbent article, first, the wearer puts on the pant-type absorbent article up to around the knees. Next, the wearer or a caregiver places the auxiliary absorbent article inside the pant-type absorbent article. At this time, the front and rear fastening members of the auxiliary absorbent article are engaged with the center position in the left-right direction of the pant-type absorbent article, thereby fixing the auxiliary absorbent article to the pant-type absorbent article.

[0005] However, the auxiliary absorbent article has thin flaps at the front and rear ends where no absorbent body is present, and when the auxiliary absorbent article is placed in the pants-type absorbent article, the flaps may bend and engage with the fastening members, requiring the wearer or caregiver to perform the cumbersome task of peeling the flaps off the fastening members and then placing the auxiliary absorbent article in the pants-type absorbent article again.

[0006] The present invention has been made in consideration of the above-mentioned problems, and has an object to suppress or prevent a flap of an auxiliary absorbent article from engaging with a fastening member. [Means for solving the problem]

[0007] A first aspect of the present invention is an auxiliary absorbent article that is placed inside a pant-type absorbent article to receive excrement from a wearer, and comprises an absorbent body that is long in a first direction, a top sheet that is placed on the upper surface side of the absorbent body, a back sheet that is placed on the rear side of the absorbent body, and a fastening member that is placed on the rear surface of the back sheet and is used to engage with the inner surface of the pant-type absorbent article, wherein a position of the fastening member in the first direction overlaps with an end portion of one side of the absorbent body in the first direction, and a flap is formed by directly or indirectly joining the top sheet and the back sheet outside an edge of the end portion of the one side of the absorbent body, and a fastening separation distance that is the distance between the edge of the end portion of the absorbent body in the first direction and the edge of the fastening member that is closest to the edge of the end portion is at least 1 time and at most 2 times the length of the fastening member in the first direction, and the length of the flap in the first direction is at least 1 time and at most 2 times the length of the fastening member in the first direction.

[0008] A second aspect of the present invention is an auxiliary absorbent article according to the first aspect, wherein the length of the flap in the first direction is greater than the fastening separation distance, and the length of the fastening member in a second direction perpendicular to the first direction and parallel to the absorbent body is 50 mm or less.

[0009] A third aspect of the present invention is the auxiliary absorbent article of the second aspect, wherein the length of the fastening member in the second direction is 40 mm or less.

[0010] A fourth aspect of the present invention is the auxiliary absorbent article of the second aspect (which may be the second or third aspect), wherein the product of the difference between the length of the flap in the first direction and the fastening separation distance and the length of the fastening member in the second direction is 625 mm or less. 2 The following is the result.

[0011] A fifth aspect of the present invention is an auxiliary absorbent article according to the first aspect, wherein when the flap is folded back toward the fastening member at the edge of the end portion in the first direction of the absorbent body, the flap and the fastening member do not overlap.

[0012] A sixth aspect of the present invention is the auxiliary absorbent article of the fifth aspect, wherein the fastening separation distance is greater than the length of the flap in the first direction.

[0013] A seventh aspect of the present invention is the auxiliary absorbent article according to the first aspect (which may be any one of the first to sixth aspects), in which the absorbent body has only one layer of fiber assembly.

[0014] Aspect 8 of the present invention is an auxiliary absorbent article of any one of aspects 1 to 7, wherein the structures of the one side and the other side in the first direction are symmetrical with respect to a line extending in a second direction perpendicular to the first direction and parallel to the absorbent body. Effect of the Invention

[0015] According to the present invention, it is possible to suppress or prevent the flap of the auxiliary absorbent article from engaging with the fastening member. [Brief description of the drawings]

[0016] [Figure 1] FIG. 2 is a perspective view showing an auxiliary absorbent article disposed inside a pants-type absorbent article. [Diagram 2] FIG. 2 is a plan view of an auxiliary absorbent article. [Diagram 3] FIG. 2 is a cross-sectional view of the auxiliary absorbent article in the crotch portion. [Figure 4] FIG. 2 is a cross-sectional view of the auxiliary absorbent article in the rear portion. [Diagram 5] FIG. 2 is a cross-sectional view of the auxiliary absorbent article in the rear portion. [Figure 6] FIG. 4 is a cross-sectional view showing an outline of a joining area in the crotch portion. [Figure 7] FIG. 4 is a cross-sectional view showing an outline of a joining area in a rear portion. [Figure 8] 13 is a plan view showing the joining area between the main body portion and the gathered sheet. FIG. [Figure 9] FIG. 2 is a cross-sectional view of the auxiliary absorbent article in the crotch portion. [Figure 10] FIG. [Figure 11] FIG. 4 is a simplified diagram for explaining how embossing is formed in the absorbent body. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] FIG. 1 is a perspective view illustrating an auxiliary absorbent article 1 according to one embodiment of the present invention arranged inside a pants-type absorbent article 9. The pants-type absorbent article 9 is a so-called disposable diaper. The pants-type absorbent article 9 is not limited to a disposable diaper and may be a non-disposable diaper. The pants-type absorbent article 9 is an outer article for the auxiliary absorbent article 1. When in use, the pants-type absorbent article 9 has a body opening 901 at the upper end, which is the upper end in FIG. 1, and a pair of leg openings 902 (only one of which is shown in FIG. 1) at the lower end.

[0018] The pants-type absorbent article 9 is manufactured by folding a member having a front portion 91, a crotch portion 92, and a rear portion 93 at the crotch portion 92 and joining both left and right portions of the front portion 91 to both left and right portions of the rear portion 93. The joining is performed by thermal fusion using heat and pressure, and joints 94 exist on the left and right sides of the front portion 91 and the rear portion 93. In the state shown in Fig. 1, a body opening 901 is located at the upper part between the front portion 91 and the rear portion 93. A pair of leg openings 902 are located below the joints 94.

[0019] A pair of three-dimensional gathers 96 are provided on the inside of the pants-type absorbent article 9. The pair of three-dimensional gathers 96 are provided on the left and right sides along the groin area of ​​the wearer. In FIG. 1, only a portion of one of the three-dimensional gathers 96 is depicted within the leg openings 902. The three-dimensional gathers 96 exist from the front part 91 through the crotch part 92 to the rear part 93, and rise largely at the crotch part 92 towards the wearer. An elastic member is provided at the tip of the three-dimensional gathers 96, and the gathers are formed by the contraction force of the elastic member.

[0020] The auxiliary absorbent article 1 receives excrement from a wearer. The auxiliary absorbent article 1 is elongated and disposed inside the pant-type absorbent article 9 so as to extend from the crotch portion 92 toward the front portion 91 and the rear portion 93. The auxiliary absorbent article 1 is disposed between a pair of upright gathers 96 of the pant-type absorbent article 9. The auxiliary absorbent article 1 also has a pair of upright gathers 36. Each of the upright gathers 36 extends in the longitudinal direction of the auxiliary absorbent article 1. A fastening member 4 is provided on the auxiliary absorbent article 1 at a position facing the front portion 91 and the rear portion 93. The fastening member 4 engages with the inner surface of the pant-type absorbent article 9, i.e., the inner surface of the front portion 91 and the inner surface of the rear portion 93, thereby preventing the auxiliary absorbent article 1 from shifting in position relative to the pant-type absorbent article 9.

[0021] In addition, the fastening member 4 "engages" with another member means that the fastening member 4 and the other member are joined together to fix the relative positions therebetween. In addition, after the fastening member 4 and the other member are engaged with each other, these members are separable.

[0022] When the auxiliary absorbent article 1 receives excrement from the wearer and is replaced, the pant-type absorbent article 9 is lowered to around the knees, the wearer or a caregiver removes the auxiliary absorbent article 1 from the pant-type absorbent article 9, and places a new auxiliary absorbent article 1 inside the pant-type absorbent article 9. At this time, typically, the center of the auxiliary absorbent article 1 is pressed against the crotch portion 92 of the pant-type absorbent article 9, and the hand is moved back and forth to press the front and rear of the auxiliary absorbent article 1 against the front part 91 and rear part 93 of the pant-type absorbent article 9 with the back and palm of the hand, whereby the front and rear fastening members 4 engage with the front part 91 and rear part 93, and the auxiliary absorbent article 1 is fixed inside the pant-type absorbent article 9.

[0023] FIG. 2 is a plan view showing the auxiliary absorbent article 1 in a state where it is spread out in a substantially flat shape. The auxiliary absorbent article 1 is, for example, an absorbent pad for light incontinence that receives urine from a wearer. In FIG. 2, the auxiliary absorbent article 1 is drawn in a stretched state (i.e., stretched in the longitudinal and lateral directions) when not worn, with the surface that contacts the wearer when worn facing the viewer. Hereinafter, the longitudinal direction of the auxiliary absorbent article 1, which is the vertical direction in FIG. 2, is referred to as the "first direction", and the width direction of the auxiliary absorbent article 1, which is the horizontal direction in FIG. 2, i.e., the direction perpendicular to the first direction and parallel to the auxiliary absorbent article 1, is referred to as the "second direction". In addition, in the state shown in FIG. 2, the surface facing the viewer is referred to as the "upper surface", and the opposite side, i.e., the surface facing the inner surface of the pants-type absorbent article 9, is referred to as the "rear surface".

[0024] FIG. 3 is a cross-sectional view of the auxiliary absorbent article 1 cut along a plane perpendicular to the first direction at the position III-III shown in FIG. 2. FIG. 4 is a cross-sectional view of the auxiliary absorbent article 1 cut along a plane perpendicular to the first direction at the position IV-IV shown in FIG. 2. FIG. 5 is a cross-sectional view of the auxiliary absorbent article 1 cut along a plane perpendicular to the first direction at the position VV shown in FIG. 2. In reality, each member is appropriately joined using an adhesive, but in order to facilitate understanding, in FIGS. 3 to 5, the auxiliary absorbent article 1 is drawn larger than it actually is in the thickness direction (i.e., the vertical direction in FIGS. 3 to 5) and each member is shown spaced apart. However, in FIG. 5, the fastening member 4 is drawn in contact with the back surface of the auxiliary absorbent article 1. In addition, in FIGS. 3 to 5, the soft sheet is shown in an angular shape as appropriate to facilitate understanding. FIGS. 6 and 7 are diagrams for explaining the outline of the adhesive-bonded range in FIGS. 3 and 5, respectively. In these figures, each member is shown further apart, and the range of the adhesive is shown by narrowly spaced parallel oblique lines. When a hot melt adhesive is used as the adhesive, the adhesive is applied to the object by curtain spray coating, stripe coating, spiral coating, omega coating, or the like.

[0025] As shown in Figs. 2 to 5, the auxiliary absorbent article 1 includes a substantially sheet-like main body portion 2 and a pair of gathered sheets 3. The pair of gathered sheets 3 are disposed on both sides of the main body portion 2, i.e., on both sides in the second direction, on the top sheet 21 of the main body portion 2 while being spaced apart in the second direction. Each gathered sheet 3 extends in the first direction and spans substantially the entire length of the main body portion 2 in the first direction. In other words, the length of the main body portion 2 in the first direction is substantially the same as the length of each gathered sheet 3 in the first direction. When the auxiliary absorbent article 1 is worn, the pair of gathered sheets 3 stand up towards the wearer (i.e., upward in Figs. 3 and 4) (see Fig. 9).

[0026] The upper and lower parts of the auxiliary absorbent article 1 in FIG. 2 are the front part 11 and the rear part 13 that contact the wearer's abdominal and dorsal skin, respectively. The parts between the front part 11 and the rear part 13 and continuing from the front part 11 and the rear part 13 are the crotch part 12 that faces the wearer's crotch part. In the auxiliary absorbent article 1, the front part 11, the crotch part 12, and the rear part 13 are arranged in order in the first direction. In the example shown in FIG. 2, the main body part 2 is substantially rectangular in a plan view, and the widths in the second direction (i.e., the widths in the left-right direction when worn, hereinafter also simply referred to as "widths") of the front part 11, the crotch part 12, and the rear part 13 of the auxiliary absorbent article 1 are substantially the same. In other words, the width of the auxiliary absorbent article 1 (and the main body part 2) is substantially constant over substantially the entire length in the first direction.

[0027] FIG. 3 is a cross-sectional view of the auxiliary absorbent article 1 in the crotch portion 12. FIG. 4 and FIG. 5 are cross-sectional views of the auxiliary absorbent article 1 in the rear portion 13. In the auxiliary absorbent article 1, the front portion 11 and the rear portion 13 have the same structure. That is, with respect to a line passing through the center of the crotch portion 12 and extending in the second direction, the front portion 11, which is a portion on one side of the line, and the rear portion 13, which is a portion on the other side of the line, are symmetrical in structure. Therefore, the expressions "front portion 11" and "rear portion 13" are for convenience, and in use, the "front portion 11" may be the rear portion, and the "rear portion 13" may be the front portion. FIG. 4 and FIG. 5 may be taken as a cross-section of the front portion 11. Since the front portion 11 and the rear portion 13 have the same structure, the auxiliary absorbent article 1 can be quickly placed in the pants-type absorbent article 9 without checking the front and rear.

[0028] As shown in Figures 2 to 5, the main body 2 comprises a liquid-permeable top sheet 21, a liquid-repellent or liquid-impermeable back sheet 23, and an absorbent body 22. The absorbent body 22 is disposed between the top sheet 21 and the back sheet 23. The top sheet 21 is disposed on the upper surface side of the absorbent body 22. The back sheet 23 is disposed on the rear surface side of the absorbent body 22. In Figure 2, the outline of the absorbent body 22 is drawn with a thick dashed line to make the figure easier to understand.

[0029] The top sheet 21 quickly captures moisture from the wearer's excrement and transfers it to the absorbent body 22. The absorbent body 22 absorbs the moisture that has permeated the top sheet 21 and quickly fixes it. The back sheet 23 mainly prevents moisture from the excrement that has permeated the top sheet 21 and the absorbent body 22 and reached the back sheet 23 from seeping out to the outside of the main body 2. As will be described later, more precisely, the back sheet 23 is a laminate of two sheets. In the example shown in FIG. 3 to FIG. 5, an upper layer backing 281 (e.g., tissue paper) is disposed between the top sheet 21 and the absorbent body 22. A lower layer backing 282 (e.g., tissue paper) is disposed between the back sheet 23 and the absorbent body 22.

[0030] The length of the top sheet 21 and the back sheet 23 in the first direction is longer than the length of the absorbent body 22 in the first direction. Both side portions of the back sheet 23 (i.e., both side portions in the second direction) are folded back on the sides of the absorbent body 22 toward the wearer side (i.e., the upper side in Figs. 3 to 5) over the entire length of the main body 2, and are joined to the upper surface of the top sheet 21 as shown in Figs. 6 and 7. In the following description, the portion of the side portion of the back sheet 23 that is folded back toward the wearer side is called a "folded-back portion 27." Note that, for convenience of expression, in Figs. 6 and 7, the adhesive region between the two sheets 231, 232 constituting the back sheet 23 is shown as being divided into the upper side (folded-back portion 27) and the lower side of the absorbent body 22, but in reality, the two sheets 231, 232 are joined over the entirety.

[0031] At the end in the first direction of the auxiliary absorbent article 1, the end in the first direction of the top sheet 21 and the end in the first direction of the back sheet 23 are joined. In the auxiliary absorbent article 1, the top sheet 21 and the back sheet 23 are joined around the entire periphery of the absorbent body 22, so that the absorbent body 22 (as well as the upper-layer backing 281 and the lower-layer backing 282) are enclosed between the top sheet 21 and the back sheet 23.

[0032] 6 and 7, i.e., the bonding of various parts related to the top sheet 21, the gather sheet 3, the back sheet 23, etc., is performed, for example, by a hot melt adhesive. These bonds may be performed by various methods other than hot melt adhesive (for example, thermocompression or ultrasonic bonding). In the example of Fig. 6 and 7, between the top sheet 21 and the back sheet 23, the top sheet 21, the upper layer backing 281, the absorbent body 22, the lower layer backing 282, and the back sheet 23 are appropriately bonded with an adhesive.

[0033] As the top sheet 21, for example, a liquid-permeable nonwoven fabric (such as a point-bonded nonwoven fabric, an air-through nonwoven fabric, or a spun-bonded nonwoven fabric) made of hydrophobic fibers (such as polypropylene, polyethylene, polyester, polyamide, or nylon) whose surfaces have been hydrophilically treated with a surfactant is used. Note that a nonwoven fabric (such as a spunlace nonwoven fabric) made of hydrophilic fibers such as cellulose, rayon, or cotton may also be used as the top sheet 21. As shown in Figs. 6 and 7, the top sheet 21 is indirectly joined to the absorbent body 22 via an upper-layer backing 281.

[0034] The back sheet 23 has, for example, a laminated structure in which a plurality of sheets are laminated. In the example shown in Figs. 3 to 7, the back sheet 23 includes a first sheet 231 and a second sheet 232. The first sheet 231 is a sheet member located on the wearer's side of the back sheet 23 (i.e., the uppermost side below the absorbent body 22 in Figs. 3 to 7). The first sheet 231 is indirectly joined to the absorbent body 22 via a lower layer mount 282. The second sheet 232 is a sheet member located on the outermost layer on the side of the back sheet 23 opposite to the wearer's side. The second sheet 232 covers the back surface of the first sheet 231.

[0035] In this embodiment, the first sheet 231 and the second sheet 232 are supplied as separate roll sheets to a manufacturing device for the auxiliary absorbent article 1, and are laminated and joined in the manufacturing device. The entire surface of the first sheet 231 and the entire surface of the second sheet 232 may be joined, or they may only be partially joined. In the back sheet 23, another sheet may be provided between the first sheet 231 and the second sheet 232.

[0036] A liquid-repellent or liquid-impermeable nonwoven fabric or plastic film is used as the first sheet 231. Preferably, the first sheet 231 is a plastic film having moisture permeability (breathability). This can improve the water resistance of the back sheet 23 and prevent stuffiness of the auxiliary absorbent article 1, thereby improving the comfort of the wearer. For example, a liquid-repellent or liquid-impermeable nonwoven fabric is used as the second sheet 232. This can improve the feel of the back sheet 23, such as the touch and texture. The nonwoven fabric used for the second sheet 232 is, for example, a spunbond nonwoven fabric, meltblown nonwoven fabric, or SMS (spunbond-meltblown-spunbond) nonwoven fabric formed of hydrophobic fibers, and is subjected to a liquid-repellent treatment as necessary. The same applies when a nonwoven fabric is used for the first sheet 231.

[0037] The absorbent body 22 is a substantially sheet-like member whose thickness is smaller than its length and width. The absorbent body 22 is elongated and provided across the front portion 11, the crotch portion 12, and the rear portion 13 of the auxiliary absorbent article 1. In the following description, the portions of the absorbent body 22 located in the front portion 11, the crotch portion 12, and the rear portion 13 of the auxiliary absorbent article 1 are referred to as the "front portion 221," the "crotch portion 222," and the "rear portion 223," respectively. The front portion 221 and the rear portion 223 of the absorbent body 22 are located on the ventral side and the back side of the wearer, respectively. The crotch portion 222 is located between the front portion 221 and the rear portion 223 in the first direction, and is continuous from the front portion 221 and the rear portion 223. The crotch portion 222 is located in the crotch portion of the wearer when worn.

[0038] The "first direction" in the above description corresponds to the longitudinal direction of the absorbent body 22. The "second direction" corresponds to the width direction of the absorbent body 22. In other words, the second direction is perpendicular to the first direction and parallel to the absorbent body 22 (the same applies to the main body portion 2).

[0039] In the example shown in FIG. 2, the width of the crotch portion 222 of the absorber 22 in the second direction is smaller than the width of the front portion 221 and the rear portion 223 in the second direction. In other words, the absorber 22 has a so-called hourglass shape in a plan view. The width of the front portion 221 and the width of the rear portion 223 are substantially the same. The width of the crotch portion 222 is substantially the same over substantially the entire length of the crotch portion 222 in the first direction. The widths of the front portion 221 and the rear portion 223 gradually increase in the vicinity of the crotch portion 222 as they move away from the crotch portion 222 in the first direction, and then become substantially constant. The width of the crotch portion 222 is preferably about 40% or more and about 90% or less of the maximum width of the front portion 221 and the maximum width of the rear portion 223. The shape of the absorber 22 in a plan view may be changed in various ways.

[0040] The absorbent body 22 is preferably a sheet-like fiber assembly in which a highly absorbent material is dispersed. The fiber assembly is, for example, an assembly of pulp fibers and / or synthetic fibers. The highly absorbent material is, for example, granular SAP (Super Absorbent Polymer) or fibrous SAF (Super Absorbent Fiber). The absorbent body 22 may be a sheet-like fiber assembly that does not contain a highly absorbent material. In addition, the fiber assembly here does not mean a very thin one such as tissue paper, but a fiber assembly that achieves the purpose of absorbing a certain amount of liquid, and is an "absorbent fiber assembly."

[0041] In the absorbent body 22, the fiber aggregate has only one layer. The fiber aggregate has "only one layer" means that there is only one series of steps for forming the fiber aggregate, and that the fiber aggregate is not formed by stacking multiple fiber aggregates formed in separate steps. In addition, the thickness of the fiber aggregate is preferably constant. The thickness of the fiber aggregate being "constant" means that the basis weight of the fiber aggregate is constant by design, and the fiber aggregate may have through holes. In other words, it means that the weight per unit area when the fiber aggregate is viewed in a plane is the same by design.

[0042] When the absorbent body 22 is a pulp fiber aggregate having granular highly absorbent material dispersed therein, the weight of the pulp fiber is 150 g / m 2 More than 500g / m 2 Preferably, 200 g / m or less. 2 More than 450g / m 2 Less than 250 g / m 2 More than 400g / m 2 The basis weight of the highly absorbent material is 10 g / m 2 More than 300g / m 2 Preferably, 20 g / m or less. 2 More than 250g / m 2 Less than 50 g / m 2 More than 200g / m 2 Because the absorbent body 22 has only one layer of fiber assembly, the ends of the auxiliary absorbent article 1 can be easily gripped when attaching the auxiliary absorbent article 1 to the pants-type absorbent article 9.

[0043] As shown in Figs. 2 to 4, each gathered sheet 3 includes a side sheet 31 and an elastic member 32 (two on each side in this embodiment). The side sheet 31 is a substantially strip-shaped sheet member extending in the longitudinal direction of the auxiliary absorbent article 1. On the main body 2, the side sheet 31 extends from the side of the main body 2 toward the inside, is folded back toward the outside, and is then folded back again toward the inside. That is, in a cross section perpendicular to the first direction, the side sheet 31 is substantially Z-shaped with the upper end facing inward. The side sheet 31 is fixed to the upper surface of the main body 2. As shown in Figs. 2 and 5, the elastic member 32 is not present at the end of the gathered sheet 3 in the first direction.

[0044] Fig. 8 is a plan view showing the joining area between the main body portion 2 and the gathered sheet 3 with parallel oblique lines. As shown in Figs. 6 and 8, in the stretched state of the auxiliary absorbent article 1, the gathered sheet 3 is joined onto the folded-back portion 27, except for both ends in the first direction. The gathered sheet 3 may be joined so as to be sandwiched between the top sheet 21 and the folded-back portion 27. The joining structure of the folded-back portion 27 and the gathered sheet 3 may be modified in various ways. As shown in Figs. 7 and 8, both ends of the gathered sheet 3 in the first direction are joined to the upper surface of the main body portion 2 over the entire width in the second direction.

[0045] As shown in Figs. 2 to 5, an elastic member 32 extending in the longitudinal direction is attached to the inner end (i.e., free end) of each gathered sheet 3 in a stretched state by an adhesive such as a hot melt adhesive. When the auxiliary absorbent article 1 is worn, the elastic member 32 in each gathered sheet 3 contracts, so that the portion of the gathered sheet 3 in the crotch portion 12, except for both ends in the first direction, moves upward from the upper surface of the main body portion 2 and stands up toward the wearer, as shown in Fig. 9. Specifically, the gathered sheet 3 starts standing up from an edge 37 (see Fig. 8) closest to the crotch portion 12 within the range where the gathered sheet 3 is attached to the main body portion 2 over its entire width, toward the crotch portion 12. The pair of standing gathered sheets 3 form a pair of three-dimensional gathers 36 (see Fig. 1) that come into contact with the vicinity of the base of the wearer's legs. This prevents leakage of urine and the like from around the legs in the auxiliary absorbent article 1.

[0046] Furthermore, when the main body portion 2 is deformed so that both side portions thereof are lifted, a space is formed inside the gathered sheet 3 and the main body portion 2. In particular, since the width of the absorber 22 is narrow in the crotch portion 12, the main body portion 2 is largely deflected in the width direction, and the height of the three-dimensional gathers 36 becomes higher than the height of the three-dimensional gathers 36 in the front portion 11 and the rear portion 13. As a result, lateral leakage of urine and the like in the crotch portion 12 (i.e., side leakage) is suitably suppressed.

[0047] The side sheets 31 are made of water-repellent or liquid-impermeable nonwoven fabrics (e.g., spunbond nonwoven fabrics, meltblown nonwoven fabrics, SMS nonwoven fabrics, etc.) made of hydrophobic fibers. The elastic members 32 are made of, for example, polyurethane threads, strip-shaped polyurethane films, thread-shaped or strip-shaped natural rubber, etc. In this embodiment, polyurethane threads are used as the elastic members 32. The number of polyurethane threads in each gathered sheet 3 may be one or two or more.

[0048] As shown in FIG. 5, the fastening member 4 is disposed on the rear surface of the back sheet 23. As already described, the fastening member 4 is used for engagement with the inner surface of the pants-type absorbent article 9. As shown by the dashed lines in FIG. 2, the fastening member 4 is provided on the rear surface of the front portion 11 and the rear portion 13, and when viewed in a plan view, the position of one fastening member 4 in the first direction overlaps with one end of the absorbent body 22 in the first direction (the end of the front portion 221), and the position of the other fastening member 4 in the first direction overlaps with the other end of the absorbent body 22 in the first direction (the end of the rear portion 223). That is, when the auxiliary absorbent article 1 is viewed in a plan view, each fastening member 4 overlaps with one end of the absorbent body 22 in the first direction. Here, the "end" does not mean a portion very close to the end, but means a portion approximately close to the end when the absorbent body 22 is observed as a whole, for example, the portions at both ends when the absorbent body 22 is divided into four equal parts in the first direction.

[0049] As shown in the front part 11 of FIG. 8, the length 45 of the fastening member 4 in the second direction is 60% or less of the distance 325 between the elastic members 32 of the pair of gather sheets 3. Here, the distance 325 refers to the distance between the innermost positions in the width direction of the elastic members 32 of the pair of gather sheets 3 when the auxiliary absorbent article 1 is spread out flat. The distance 325 may be regarded as the design distance between the innermost positions in the width direction of the elastic members 32 of the pair of gather sheets 3 in a plan view. By making the length 45 of the fastening member 4 60% or less of the distance 325 between the elastic members 32, it is possible to prevent the fastening member 4 from engaging with an unintended location in the pant-type absorbent article 9. This allows the auxiliary absorbent article 1 to be easily placed in the pant-type absorbent article 9. In particular, as in the example of Figure 1, when the pants-type absorbent article 9 has three-dimensional gathers 96, the length 45 of the fastening member 4 in the second direction is sufficiently smaller than the distance between the three-dimensional gathers 96, thereby preventing the fastening member 4 from getting caught on the three-dimensional gathers 96 and damaging the three-dimensional gathers 96.

[0050] Since the length 45 of the fastening member 4 in the second direction is short, even if the fastening member 4 engages with an unintended location of the pant-type absorbent article 9, the fastening member 4 can be easily removed from the pant-type absorbent article 9. It is also prevented that the fastening member 4 provided with the micro hooks will injure the wearer's skin when the auxiliary absorbent article 1 is twisted while the pant-type absorbent article 9 is being worn. The lower limit of the length 45 of the fastening member 4 is not particularly limited, but is usually 20% or more of the distance 325 between the elastic members 32.

[0051] Such a size of the fastening member 4 is particularly suitable when the fastening member 4 is a resin member (so-called hook-and-loop fastener) on which a large number of minute hooks are formed. When the main body portion 2 is largely curved in the width direction in the crotch portion 12 as shown in FIG. 9 due to contraction of the elastic members 32, the main body portion 2 is also curved to some extent in the front portion 11 and the rear portion 13. At this time, if the length 45 of the fastening member 4 in the second direction is close to the distance 325 between the elastic members 32, the fastening member 4 is also curved. On the other hand, a hook-and-loop fastener has a property of being strongly caught when sliding in a direction parallel to the surface of the object to be engaged. When the fastening member 4 is curved, when the auxiliary absorbent article 1 is placed in the pants-type absorbent article 9, the fastening member 4 may come into contact with the inner surface of the three-dimensional gather 96 of the pants-type absorbent article 9 so as to slide over a large area, which prevents the auxiliary absorbent article 1 from being quickly placed. In the auxiliary absorbent article 1 according to this embodiment, the length 45 of the fastening member 4 is sufficiently short, so that such a problem is unlikely to occur.

[0052] The fastening member 4 having a short length 45 is particularly suitable when the fastening member 4 is provided at a position where the absorbent body 22 is easily twisted. That is, the fastening member 4 is suitable when the fastening member 4 is provided at the end of the absorbent body 22 in the first direction. Specifically, as shown in the front part 11 of FIG. 8, a distance 461 between an edge 226 of the end of the absorbent body 22 in the first direction and an edge 46 of the fastening member 4 closest to the edge 226 (hereinafter referred to as "fastening separation distance 461") is preferably 50 mm or less. For the same reason, a fastening member 4 having a short length 45 in the second direction is suitable when the edge 46 of the fastening member 4 is closer to the edge 226 of the end of the absorbent body 22 than the position where the pair of gather sheets 3 start to stand in the first direction (i.e., the edge with reference number 37 of the adhesive region of the gather sheet 3). More preferably, the fastening member 4 is disposed so that the entire fastening member 4 is closer to the edge 226 of the absorbent body 22 than the edge 37 of the adhesive region.

[0053] Furthermore, the fastening member 4 that is short in the second direction is particularly suitable when the absorbent body 22 has only one layer of fiber assembly and is prone to twisting. The distance in the first direction between the edge 226 of the end portion in the first direction of the absorbent body 22 and the edge 37 of the wide adhesive region of the gathered sheet 3 is preferably 10 mm or more and 85 mm or less, and more preferably 20 mm or more and 75 mm or less.

[0054] The length 45 of the fastening member 4 in the second direction is preferably 50 mm or less. When placing the auxiliary absorbent article 1 in the pant-type absorbent article 9, as already described, the pant-type absorbent article 9 is lowered to about the knee, and in many cases, the wearer or a caregiver presses the center of the auxiliary absorbent article 1 against the crotch portion 92 of the pant-type absorbent article 9 and presses the front and rear of the auxiliary absorbent article 1 against the front part 91 and the rear part 93 of the pant-type absorbent article 9 with the back and palm of the hand, so that the front and rear fastening members 4 engage with the front part 91 and the rear part 93 of the pant-type absorbent article 9. At this time, since the length 45 of the fastening member 4 is 50 mm or less, it becomes easy to recognize the center position of the fastening member 4 in the second direction when gripping the front part 11 or the rear part 13 of the auxiliary absorbent article 1, and the auxiliary absorbent article 1 can be easily placed in an appropriate position. In other words, when grasping the front or rear part of the auxiliary absorbent article 1, the range of the second direction of the fastening member 4 can be easily recognized by sliding the thumb from side to side, or by using the index finger, middle finger and ring finger, and the central position of the fastening member 4 in the second direction can be quickly grasped.

[0055] The length 45 of the fastening member 4 in the second direction is more preferably 40 mm or less. Although the lower limit of the length 45 of the fastening member 4 is not particularly limited, in order to make it easy to grasp the presence of the fastening member 4 with a finger, the length 45 is preferably 15 mm or more.

[0056] As shown in Fig. 2, in the front section 11, the top sheet 21 and the back sheet 23 are directly joined together outside the edge 226 of the end of the absorbent body 22 in the first direction to form a flap 24. Similarly, in the rear section 13 of the main body 2, the top sheet 21 and the back sheet 23 are directly joined together outside the edge 226 of the end of the absorbent body 22 in the first direction to form a flap 24. Note that the absorbent body 22 is not present in the flap 24, but other sheets such as a backing sheet may be interposed. The flap 24 is formed by directly joining the top sheet 21 and the back sheet 23 or indirectly joining them with another thin sheet other than the absorbent body 22 interposed therebetween.

[0057] Such a flap 24 is more easily bent than the part where the absorbent body 22 is present, and may bend onto the back surface of the back sheet 23. At this time, if the fastening member 4 is very close to the edge 226 of the absorbent body 22, the flap 24 will engage with the fastening member 4. If the flap 24 engages with the fastening member 4, when the auxiliary absorbent article 1 is placed in the pants-type absorbent article 9, the flap 24 needs to be peeled off from the fastening member 4. Therefore, in the auxiliary absorbent article 1 according to this embodiment, as shown in the front part 11 of FIG. 8, the fastening separation distance 461, which is the distance between the edge 226 of the end of the absorbent body 22 in the first direction and the edge 46 of the fastening member 4 closest to the edge 226, is designed to be 1 to 2 times the length 462 of the fastening member 4 in the first direction, and further, the length 241 of the flap 24 in the first direction is designed to be 1 to 2 times the length 462 of the fastening member 4 in the first direction. It should be noted that the fastening separation distance 461 and the length 241 of the flap 24 herein are lengths in a design plan view.

[0058] The fastening separation distance 461 is preferably 5 mm or more and 50 mm or less, more preferably 10 mm or more and 40 mm or less. The length 241 of the flap 24 in the first direction is preferably 5 mm or more and 50 mm or less, more preferably 15 mm or more and 40 mm or less. The length 462 of the fastening member 4 in the first direction is preferably 5 mm or more and 25 mm or less, more preferably 10 mm or more and 20 mm or less. If the fastening separation distance 461 is too small, the edge 46 of the fastening member 4 closest to the edge 226 of the absorbent body 22 is difficult to recognize with the finger, so the fastening separation distance 461 is preferably larger than the length 462 of the fastening member 4 in the first direction.

[0059] The absorbent body 22 is a laminate of fibers and has a certain thickness. When the flap 24 is bent toward the back sheet 23, it is curved in a circular arc of a certain size. Therefore, even if the length 241 of the flap 24 is designed to be twice the length 462 of the fastening member 4 and the fastening separation distance 461 is designed to be one time the length 462 of the fastening member 4, the tip of the bent flap 24 does not overlap the fastening member 4, or even if it overlaps, it overlaps only by a small area. As a result, in order to stably fix the auxiliary absorbent article 1 in the pants-type absorbent article 9, the fastening member 4 is disposed close to the edges 226 of the front part 221 and the rear part 223 of the absorbent body 22, and the flap 24 can be prevented from engaging with the fastening member 4, or even if it engages with the fastening member 4, the flap 24 can be easily peeled off from the fastening member 4.

[0060] In terms of design, the fastening clearance distance 461 is designed to be greater than or equal to 1 and less than 2 times the length 462 of the fastening member 4 in the first direction, and the length 241 of the flap 24 in the first direction is designed to be greater than or equal to 1 and less than 2 times the length 462 of the fastening member 4 in the first direction, so that the folded flap 24 does not overlap the entire fastening member 4.

[0061] In the most preferable embodiment, when the flap 24 is folded back toward the fastening member 4 at the edge 226 at the end in the first direction of the absorbent body 22, the flap 24 does not overlap with the fastening member 4. Such an embodiment is reliably achieved by making the designed fastening separation distance 461 greater than the length 462 of the flap 24. In other words, it is possible to reliably prevent the flap 24 from engaging with the fastening member 4.

[0062] On the other hand, if the length 241 of the flap 24 in the first direction is greater than the fastening distance 461, there is a possibility that a part of the flap 24 will engage with the fastening member 4 when the flap 24 is bent. However, even in this case, in the auxiliary absorbent article 1, the length 45 of the fastening member 4 in the second direction is short, at 50 mm or less, so that the overlapping area between the flap 24 and the fastening member 4 is small and the flap 24 can be easily peeled off from the fastening member 4. Preferably, in a design plan view, the product of the difference (absolute value of the difference) between the length 241 of the flap 24 in the first direction and the fastening distance 461 and the length of the fastening member 4 in the second direction is less than 625 mm. 2 More preferably, it is 400 mm or less. 2 The length 45 of the fastening member 4 is more preferably 40 mm or less.

[0063] The above structure, which prevents or inhibits the flap 24 from engaging with the fastening member 4, is suitable when the absorbent body 22 is prone to twisting, and is particularly suitable when the absorbent body 22 has only one layer of fiber assembly.

[0064] Next, the absorbent body 22 and its manufacturing method will be described. FIG. 10 is a plan view showing the embossment applied to the absorbent body 22. The thin lines in the lattice pattern indicate the first embossment 71. The very thick lines with the reference numeral 72 indicate the second embossment. The second embossment 72 is symmetrical with respect to the center line 228 (the line indicating the center in the second direction) extending in the first direction of the absorbent body 22, and has a herringbone pattern composed of a plurality of lines inclined with respect to the first direction. The first embossment 71 is provided on the entire surface when the absorbent body 22 is viewed in plan. The second embossment 72 has a constant width in the second direction, and is provided in a range close to the entire width in the crotch portion 222. The first embossment 71 and the second embossment 72 are formed by pressing the fiber aggregate from above and below to pack the fibers densely.

[0065] FIG. 11 is a simplified diagram for explaining how the first embossment 71 and the second embossment 72 are formed on the absorbent 22. In FIG. 11, the rollers for conveying the sheet are not shown. A continuous body of the lower layer backing 282 (hereinafter referred to as the "lower layer backing 282a") is pulled out from a supply roll 81. In the absorbent forming drum 82, the outer peripheral surface adsorbs the fibers and the highly absorbent material, forming a fiber aggregate (hereinafter referred to as the "absorbent 22a"), which is a continuous body of the absorbent 22, on the outer peripheral surface, and the continuous body of the fiber aggregate is transferred onto the lower layer backing 282a. A continuous body of the upper layer backing 281 (hereinafter referred to as the "upper layer backing 281a") is pulled out from the supply roll 83 and is laid on the absorbent 22a.

[0066] The absorbent body 22a is guided between a pair of rollers, the first roller 84, while being sandwiched between the lower layer mount 282a and the upper layer mount 281a. A convex pattern corresponding to the first embossment 71 is formed on one outer peripheral surface of the first roller 84, and the outer peripheral surface of the other roller is flat. When the absorbent body 22a passes between the first rollers 84, the first embossment 71 is formed on the upper surface of the absorbent body 22a. When the absorbent body 22a is sandwiched between the lower layer mount 282a and the upper layer mount 281a, the absorbent body 22a is further guided between a pair of rollers, the second roller 85. A convex pattern corresponding to the second embossment 72 is formed on one outer peripheral surface of the second roller 85, and the outer peripheral surface of the other roller is flat. When the absorbent body 22a passes between the second rollers 85, the second embossment 72 is formed on the upper surface of the absorbent body 22a. The first roller 84 and the second roller 85 emboss the absorbent body 22a at room temperature.

[0067] The continuous laminate of the lower layer mount 282a, absorbent body 22a, and upper layer mount 281a is cut at regular intervals to form a laminate piece in which the absorbent body 22 is sandwiched between the lower layer mount 282 and the upper layer mount 281. The length of the upper layer mount 281 and the lower layer mount 282 is approximately the same as the length of the absorbent body 22. The width of the upper layer mount 281 and the lower layer mount 282 is constant and approximately the same as the width of the front portion 221 and the rear portion 223 of the absorbent body 22.

[0068] As already explained, the absorbent body 22 has only one layer of fiber aggregate. Therefore, there is no other absorbent body between the top sheet 21 and the absorbent body 22, and there is no other absorbent body between the back sheet 23 and the absorbent body 22. Here, "other absorbent body" means an absorbent body having a certain thickness due to having a fiber aggregate. In addition, the width of the crotch part 222, which is the center part in the first direction, is narrower than the widths of the front part 221 and the rear part 223, which are other parts in the first direction.

[0069] When the first embossment 71 is applied to the entire surface of such absorbent body 22, the force applied between first rollers 84 is constant, so that the first embossment 71 is formed at the crotch portion 222 with a greater pressure than at other portions. As a result, the shape of the crotch portion 12 during use of the auxiliary absorbent article 1 can be stabilized while ensuring the thinness of the auxiliary absorbent article 1, and the durability of the auxiliary absorbent article 1 can also be increased. The shape of the crotch portion 12 can also be stabilized when the auxiliary absorbent article 1 is attached to a pants-type absorbent article 9.

[0070] In the example of Fig. 10, the absorbent body 22 also has a second embossment 72, but the shape stability of the first embossment 71 and the second embossment 72 combined is also increased in the crotch portion 222 by the first embossment 71. That is, the above-mentioned effect is obtained by embossing the entire surface of the absorbent body 22 with a similar repeating pattern (a checkered pattern in the case of Fig. 10). Note that "the entire surface" here means the entire surface of either the top surface or the back surface of the absorbent body 22. Of course, the embossing may be applied to the top surface and the back surface of the absorbent body 22.

[0071] The pressure that the absorbent 22a receives from the convex parts of the embossed pattern of the roller during embossing is 0.5 MPa to 4.5 MPa, preferably 0.8 MPa to 4.0 MPa, and more preferably 1.0 MPa to 3.5 MPa. Whether or not the absorbent 22 has been embossed can be confirmed by three-dimensional measurement of the surface of the absorbent 22 using a laser, or by a method in which saline solution colored with food coloring is applied to the absorbent 22 to swell the absorbent 22 and emphasize the unevenness caused by the embossing, etc.

[0072] In order to obtain accurate shape stability in the crotch portion 222 by embossing the entire absorbent body 22, it is preferable that the thickness of the fiber aggregate of the absorbent body 22 is constant. The fiber aggregate having a constant thickness does not mean that it is constant in the strict sense, but that the thickness is approximately constant over most of the absorbent body 22. In such an absorbent body 22, for example, slits or grooves for guiding liquid may be provided.

[0073] Moreover, the fact that the shape stability of the absorbent body 22 is improved by the embossing process is particularly suitable for the case where the absorbent body 22 is thin, that is, where the absorbent body 22 has only one layer of fiber aggregate to ensure the flexibility of the absorbent body 22. Since such an absorbent body 22 is prone to twisting as already explained, the above-mentioned technique of shortening the length 45 of the fastening member 4 in the second direction, that is, the technique of setting the length 45 of the fastening member 4 to 50 mm or less (more preferably 40 mm or less) and the technique of suppressing or preventing the flap 24 from engaging with the fastening member 4, are preferably adopted in combination with the above-mentioned absorbent body 22.

[0074] From the viewpoint of ensuring flexibility of the entire auxiliary absorbent article 1, it is preferable that only one upper-layer backing 281, other than the adhesive, is interposed between the top sheet 21 and the absorbent body 22, except for the outer periphery (when viewed in plan) of the absorbent body 22, as shown in Figures 3 to 5. Similarly, it is preferable that only one lower-layer backing 282, other than the adhesive, is interposed between the back sheet 23 and the absorbent body 22, except for the outer periphery (when viewed in plan) of the absorbent body 22. Of course, the interposition of only one backing may be adopted only on the top sheet 21 side of the absorbent body 22, or only on the back sheet 23 side of the absorbent body 22.

[0075] Here, the "backing paper" refers to a thin sheet that covers the surface of the absorbent body 22 to stabilize the shape of the absorbent body 22 during manufacturing of the absorbent body 22 or during use of the auxiliary absorbent article 1. The backing paper is typically tissue paper, but nonwoven fabric or the like may also be used as the backing paper. The backing paper is a thin fiber sheet that is sufficiently thinner than the absorbent body 22 and is not primarily intended for absorbing liquid. The upper backing paper 281 and the lower backing paper 282 may be realized by folding a single sheet and sandwiching the absorbent body 22 therebetween.

[0076] The above embodiment may be modified in various ways.

[0077] The gathered sheet 3 in the above embodiment is not limited to the structures shown in Figures 2 to 5. For example, the gathered sheet 3 may not be joined to the top sheet 21 at all in the crotch portion 12. Such a structure can be realized, for example, by joining the folded-up portion 27 of the back sheet 23 to the gathered sheet 3 without joining the folded-up portion 27 to the top sheet 21 in the crotch portion 12. The gathered sheet 3 does not have to have a folded-up structure and may be a flat sheet.

[0078] The above-mentioned technique for shortening the length 45 of the fastening member 4 in the second direction and the above-mentioned technique for suppressing or preventing the flap 24 from engaging with the fastening member 4 may each be independently adopted in the auxiliary absorbent article 1. In addition, in the auxiliary absorbent article 1 in which these techniques are adopted, the structure of the main body 2 may be modified in various ways, and for example, the absorbent body 22 may have a multi-layered fiber assembly.

[0079] In the auxiliary absorbent article 1 according to the above embodiment, the front portion 11 and the rear portion 13 have the same structure, but the structure of the front portion 11 and the rear portion 13 may be different. For example, the width of the absorbent body 22 in the second direction may be wider in the rear portion 223 than in the front portion 221. Furthermore, the fastening member 4 may be provided in only one of the front portion 11 and the rear portion 13. When only one fastening member 4 is provided, it is preferable that the fastening member 4 is provided in the rear portion 13 which is likely to become displaced within the pants-type absorbent article 9.

[0080] The fastening member 4 is preferably a resin member having microhooks formed thereon, but it does not have to be a resin member, and may be an adhesive member having no microhooks.

[0081] The configurations in the above-described embodiment and each of the modified examples may be combined as appropriate as long as they are not mutually inconsistent. [Explanation of symbols]

[0082] 1. Supplementary absorbent articles 4 Fastening member 9. Pants-type absorbent articles 11 (of auxiliary absorbent articles) front part 13 Rear part (of auxiliary absorbent article) 21 Top sheet 22 Absorbent 23 Back Seat 24 Flap 45 (Second direction of fastening member) length 46 (Fastening material) Edge 221 (absorber) front part 223 (Absorbent) rear part 226 (Absorbent) Edge 241 (flap first direction) length 461 Attachment separation distance 462 (Length in the first direction of the fastening member)

Claims

1. An auxiliary absorbent article that is disposed inside a pants-type absorbent article and receives excrement from a wearer, An absorber that is elongated in a first direction; A top sheet disposed on the upper surface side of the absorbent body; A back sheet disposed on the rear side of the absorbent body; A fastening member is disposed on the rear surface of the back sheet and is used for engaging with an inner surface of a pants-type absorbent article; Equipped with a position of the fastening member in the first direction overlaps with an end portion of one side of the absorbent body in the first direction; a flap is formed by directly or indirectly joining the top sheet and the back sheet on the outer side of the edge of the end portion on the one side of the absorbent body, a fastening separation distance, which is a distance between the edge of the end portion in the first direction of the absorbent body and an edge of the fastening member that is closest to the edge of the end portion, is 1 to 2 times the length of the fastening member in the first direction, An auxiliary absorbent article in which the length of the flap in the first direction is at least 1 time and at most 2 times the length of the fastening member in the first direction.

2. 2. The auxiliary absorbent article according to claim 1, The length of the flap in the first direction is greater than the fastening separation distance, An auxiliary absorbent article, wherein the length of the fastening member in a second direction perpendicular to the first direction and parallel to the absorbent body is 50 mm or less.

3. 3. The auxiliary absorbent article according to claim 2, An auxiliary absorbent article, wherein the length of the fastening member in the second direction is 40 mm or less.

4. 3. The auxiliary absorbent article according to claim 2, The product of the difference between the length of the flap in the first direction and the fastening separation distance and the length of the fastening member in the second direction is 625 mm. ２ An auxiliary absorbent article which is:

5. 2. The auxiliary absorbent article according to claim 1, An auxiliary absorbent article in which, when the flap is folded back toward the fastening member at the edge of the end portion in the first direction of the absorbent body, the flap and the fastening member do not overlap.

6. 6. The auxiliary absorbent article according to claim 5, An auxiliary absorbent article, wherein the fastening separation distance is greater than the length of the flap in the first direction.

7. 2. The auxiliary absorbent article according to claim 1, An auxiliary absorbent article, wherein the absorbent body has only one layer of the fiber assembly.

8. 8. An auxiliary absorbent article according to any one of claims 1 to 7, An auxiliary absorbent article in which the structures on the one side and the other side in the first direction are symmetrical with respect to a straight line extending in a second direction perpendicular to the first direction and parallel to the absorbent body.

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