JP7199827B2 - absorbent article - Google Patents

Description

The present invention relates to absorbent articles.

Conventionally, absorbent articles such as disposable diapers have been used. For example, in the absorbent article of Patent Literature 1, a pair of notch portions that are cut inward in the width direction from both side edges are provided in each of the front portion and the rear portion of the substantially elongated absorbent core. Moreover, a pair of slit portions extending in the longitudinal direction are provided at positions inward in the width direction of the notch portions on both side portions of the absorbent core. In the absorbent article of Patent Literature 1, the absorbent core can be deformed into a three-dimensional boat shape, and liquid leakage is suppressed.

Further, Patent Document 2 discloses a diaper in which a surface sheet that covers the entire skin-contacting surface side of the absorbent core also covers the vicinity of both sides in the width direction of the non-skin-contacting surface side of the absorbent core. In this diaper, both side ends of the topsheet are joined and fixed to the leak-proof cuff-forming sheet on the non-skin-contacting side. Moreover, both sides of the absorbent core are erected by the elastic members, and pockets are formed between the sides and the leakage-preventive cuff-forming sheet. In the diaper of Patent Literature 2, the pockets prevent excrement from leaking out.

JP-A-2008-93289 JP 2006-141767 A

By the way, in the diaper of Patent Document 2, side leakage can be suppressed by forming pockets. Both side ends of the sheet must be joined to the leak-proof cuff-forming sheet on the non-skin-contacting side of the absorbent core, which complicates the structure of the diaper.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to suppress side leakage with a simple structure.

The invention according to claim 1 is an absorbent article for receiving excrement such as urine from a wearer, comprising a substantially sheet-like absorbent core that extends in a longitudinal direction and a width direction perpendicular to the longitudinal direction; A top sheet that covers a wearer-side main surface of the core and a back sheet that covers the other main surface of the absorbent core, and each side portion of the absorbent core in the width direction near the edge along the longitudinal direction There is no bonding between the edges , which are parts, and the backsheet, and there is no bonding between the side surface of each side of the absorbent core facing outward in the width direction and the topsheet and the backsheet. wherein the top sheet and the back sheet are joined outside the respective side portions in the width direction of the absorbent core, and the top surface of the edge portions of the respective side portions of the absorbent core and the top sheet are joined by the joining portion extending in the longitudinal direction, and when the absorbent article is used, the side portions of the absorbent core in the crotch portion stand up toward the wearer. an inset portion formed such that, at least in the side upright state, the topsheet covers a side surface of the edge of each side of the absorbent core and enters between the edge and the backsheet; and an extension portion which is a portion folded outward in the width direction between the edge portion and the backsheet and which extends outward in the width direction from the insertion portion.

The invention according to claim 2 is the absorbent article according to claim 1 , further comprising an elastic member extending in the longitudinal direction outside each of the side portions in the width direction, In the longitudinally and transversely stretched condition, the edges of each of the sides contact the backsheet.

The invention according to claim 3 is the absorbent article according to claim 1, further comprising an elastic member extending in the longitudinal direction outside each of the side portions in the width direction, wherein the contraction of the elastic member , said side standing condition is formed.

The invention according to claim 4 is the absorbent article according to any one of claims 1 to 3 , wherein the absorbent core in the crotch part is in a state in which the absorbent article is accommodated in a packaging bag. are folded toward the top sheet by two fold lines extending in the longitudinal direction.

The invention according to claim 5 is the absorbent article according to any one of claims 1 to 4 , wherein when the absorbent article is used, the extension part of the top sheet is closest to the wearer. It is a sheet that is placed in
The invention according to claim 6 is the absorbent article according to claim 4, wherein in the absorbent article taken out of the packaging bag, the both sides of the absorbent core are formed by the two folding lines. Due to the crease, it rises toward the wearer's side to form the side standing state.

According to the present invention, side leakage can be suppressed with a simple structure.

1 is a plan view of an absorbent article in a stretched state; FIG. 1 is a cross-sectional view of an absorbent article in a stretched state; FIG. 1 is a cross-sectional view of an absorbent article in an unstretched state; FIG. FIG. 10 is a diagram showing another example of an absorbent article; 1 is a cross-sectional view of an absorbent article in use; FIG.

FIG. 1 is a plan view showing an absorbent article 1 according to one embodiment of the invention. FIG. 1 shows a state in which the absorbent article 1 is stretched in vertical and horizontal directions (longitudinal and width directions, which will be described later). The absorbent article 1 is an auxiliary absorbent pad that is attached to the inside (that is, the wearer's side) of an exterior article such as a disposable diaper worn by the wearer and receives excrement such as urine from the wearer. The auxiliary absorbent pad is also called an inner. In FIG. 1, the absorbent article 1 is drawn with the side that contacts the wearer when worn facing forward.

One of the upper portion 12 and the lower portion 13 in FIG. 1 of the absorbent article 1 is a front portion that contacts the wearer's ventral skin, and the other is a rear portion that contacts the dorsal skin. . A portion between the front portion and the rear portion is a crotch portion 11 facing the crotch portion of the wearer. The direction in which the front portion, the crotch portion 11 and the rear portion are aligned is the longitudinal direction of the absorbent article 1 .

FIG. 2 is a cross-sectional view of the absorbent article 1 cut along a plane perpendicular to the longitudinal direction at the position II-II shown in FIG. FIG. 2 shows a cross section of the crotch portion 11 when the absorbent article 1 is stretched in the longitudinal direction and in the width direction perpendicular to the longitudinal direction. For the convenience of illustration, in FIG. 2, each component of the absorbent article 1 is depicted separately in the thickness direction (the same applies to FIGS. 3 to 5 described later).

The absorbent article 1 includes a liquid-permeable top sheet 21 , a water-repellent or liquid-impermeable back sheet 23 , and a substantially sheet-like absorbent core 22 . The absorbent core 22 extends longitudinally and widthwise and is positioned between the topsheet 21 and the backsheet 23 . In FIG. 1, the outline of the absorbent core 22 is drawn with a thick dashed line for easy understanding of the drawing. As shown in FIG. 1, the outer shape of the absorbent article 1 and the outer shape of the absorbent core 22 are generally rectangular elongated in the longitudinal direction in plan view. The outer shape of the absorbent article 1 and the outer shape of the absorbent core 22 may be other shapes, for example, a shape in which the width at the front portion and the rear portion is larger than the width at the crotch portion 11 . .

The longitudinal length and width of the topsheet 21 and the backsheet 23 are greater than the length and width of the absorbent core 22 . As shown in FIG. 2, the top sheet 21 covers the main surface of the absorbent core 22 facing the wearer (hereinafter referred to as "upper surface"). The back sheet 23 covers the other main surface of the absorbent core 22, that is, the main surface opposite to the wearer (hereinafter referred to as "lower surface"). As used herein, "upper surface" and "lower surface" are for convenience and do not necessarily imply the direction of gravity.

In the example of FIG. 1 , the top sheet 21 and the back sheet 23 have substantially the same size, and the outer shape of the top sheet 21 and the back sheet 23 corresponds to the outer shape of the absorbent article 1 . As mentioned above, the topsheet 21 and the backsheet 23 are larger than the absorbent core 22 , and the entirety of the absorbent core 22 is located inside the perimeter edges of the topsheet 21 and the backsheet 23 . As will be described later, the top sheet 21 and the back sheet 23 are joined together around the absorbent core 22 .

The topsheet 21 quickly captures moisture from the wearer's exudates and transfers it to the absorbent core 22 . The absorbent core 22 absorbs moisture permeating through the top sheet 21 and quickly fixes it. The back sheet 23 prevents the moisture and the like of the excrement reaching the back sheet 23 from seeping out of the absorbent article 1 .

As the top sheet 21, for example, a liquid-permeable nonwoven fabric formed of hydrophobic fibers (polypropylene, polyethylene, polyester, polyamide, nylon, etc.) whose surface is hydrophilically treated with a surfactant is used. The nonwoven fabric is, for example, a point-bonded nonwoven fabric, an air-through nonwoven fabric, or a spunbonded nonwoven fabric. As the top sheet 21, a nonwoven fabric (for example, a spunlace nonwoven fabric) formed from hydrophilic fibers such as cellulose, rayon, and cotton may be used.

The absorbent core 22 is, for example, a mixture of hydrophilic fibers such as pulverized pulp fibers and cellulose fibers and a super absorbent material such as granular super absorbent polymer (SAP (Super Absorbent Polymer)) and super absorbent fibers. is wrapped with tissue paper, liquid-permeable nonwoven fabric, or the like. The tissue paper, liquid-permeable nonwoven fabric, etc. are bonded to hydrophilic fibers and superabsorbent materials with a hot melt adhesive, and the hydrophilic fibers lose their shape and the superabsorbent materials fall off (especially, falling off after water absorption). ) is prevented. In this embodiment, absorbent core 22 comprises pulp fibers and SAP. The absorbent core 22 may be a so-called polymer sheet in which a superabsorbent material is placed between liquid-permeable sheets.

As the backsheet 23, a water-repellent or liquid-impermeable nonwoven fabric (for example, a spunbond nonwoven fabric, a meltblown nonwoven fabric, or an SMS (spunbond-meltblown-spunbond) nonwoven fabric) made of hydrophobic fibers, or a water-repellent or liquid-impermeable nonwoven fabric A liquid-impermeable plastic film, or a laminated sheet obtained by laminating any nonwoven fabric and a plastic film, or the like is used. From the viewpoint of preventing stuffiness of the absorbent article 1 and improving wearer's comfort, the plastic film used for the back sheet 23 preferably has moisture permeability (breathability).

Next, the region where the back sheet 23, the top sheet 21 and the absorbent core 22 are joined together in the crotch portion 11 will be described. As shown in FIG. 2 , at each side 221 (each end of the absorbent core 22 in the width direction) of the absorbent core 22 in the crotch portion 11 , the upper surface of the edge 222 is joined to the top sheet 21 by the first joints 31 . spliced. The edge portion 222 is a portion near the edge along the longitudinal direction of the side portion 221 . The first joint 31 is, for example, a hardened hot-melt adhesive. The first joint portion 31 extends longitudinally in the crotch portion 11 . The upper surface of the absorbent core 22 is joined to the top sheet 21 by the partial joints 33 between the two first joints 31 provided on each side portion 221 . The partial joints 33 are, for example, a hardened hot-melt adhesive, and are partially present on the upper surface of the absorbent core 22 in the region between the two first joints 31 . In FIG. 2, the partial joint 33 is indicated by a dashed rectangle (the same applies to the partial joint 34 described later). Between the two first joints 31, the absorbent core 22 and the top sheet 21 may be non-joined.

At the edge 222 of each side 221 , there is no bonding between the laterally outward facing side and the topsheet 21 and the backsheet 23 . Further, the lower surface of the edge portion 222 and the back sheet 23 are also non-bonded. Therefore, in the side portion 221 of the absorbent core 22, the region from the outer edge of the first joint portion 31 in the width direction to the lower surface of the edge portion 222 via the side surface is the top sheet 21 and the back. A non-bonded region 223 that is not bonded to the sheet 23 is formed. The non-bonded region 223 extends longitudinally in the crotch portion 11 . The lower surface of the absorbent core 22 is joined to the backsheet 23 by the partial joints 34 between the two non-joint regions 223 provided on the side portions 221 respectively. The partial bond 34 is, for example, a hardened hot-melt adhesive and is partially present in the area between the two non-bonded areas 223 on the lower surface of the absorbent core 22 . Between the two non-bonded regions 223, the absorbent core 22 and the backsheet 23 may be non-bonded.

The top sheet 21 and the back sheet 23 are joined together by the second joining portion 32 in the vicinity of the outer side of each side portion 221 in the width direction. The second joint 32 is, for example, a hardened hot-melt adhesive. The second joint portion 32 extends longitudinally in the crotch portion 11 . In this embodiment, the second joint portion 32 is provided so as to surround the entire circumference of the absorbent core 22 . That is, the top sheet 21 and the back sheet 23 are joined to each other around the entire periphery of the absorbent core 22 .

Polyolefin-based, rubber-based, and vinyl acetate-based adhesives are used as the above-mentioned hot-melt adhesives. Other types of adhesives may be used. Moreover, the bonding between the top sheet 21 and the back sheet 23 may be performed by thermal fusion bonding, ultrasonic bonding, or the like. In this case, the second joint portion 32 is a portion where the top sheet 21 and the back sheet 23 are joined together. Bonding of other portions using a hot melt adhesive may also be performed by thermal fusion bonding, ultrasonic bonding, or the like.

The absorbent article 1 further comprises a pair of longitudinally extending elastic members 24 . A pair of elastic members 24 are provided on both sides of the absorbent article 1 . Specifically, each elastic member 24 is arranged between the top sheet 21 and the back sheet 23 on the outside of the side portions 221 in the width direction. The elastic member 24 is joined to the top sheet 21 and the back sheet 23 by the second joints 32 in a stretched state. As the elastic member 24, for example, a polyurethane thread, a strip-shaped polyurethane film, a thread-shaped or strip-shaped natural rubber, or the like is used. In the example of FIG. 1, one or more polyurethane threads are used as the elastic member 24.

The absorbent article 1 is accommodated in a predetermined packaging bag in a folded state. When folding the absorbent article 1, two folding lines F1 (indicated by dashed lines in FIG. 1) extending in the longitudinal direction and separated in the width direction allow the absorbent article 1 to fold the top sheet 21 inside. can be folded. In addition, the absorbent article 1 is folded so that the front portion and the rear portion overlap the crotch portion 11 by two folding lines F2 (indicated by dashed lines in FIG. 1) extending in the width direction and separated in the longitudinal direction. be bent. The two folding lines F1 extending in the longitudinal direction overlap the absorbent core 22 , and the portions of the absorbent core 22 outside the respective folding lines F1 in the width direction are the side portions 221 . Thus, in the state where the absorbent article 1 is stored in the packaging bag, both side portions 221 of the absorbent core 22 in the crotch portion 11 are folded toward the top sheet 21 along the two folding lines F1.

FIG. 3 is a cross-sectional view of the absorbent article 1, showing a cross-section of the crotch portion 11 when the absorbent article 1 is not stretched. The absorbent article 1 taken out of the packaging bag is attached to the inside of an exterior article 4 (indicated by a two-dot chain line in FIG. 3) in an unfolded state, and the exterior article 4 is attached to the wearer. . In the absorbent article 1, the contraction of the elastic member 24 in the crotch portion 11 causes the portions of the top sheet 21 and the back sheet 23 joined together by the second joining portion 32 to face the wearer side (upper side in FIG. 3). , opposite to the exterior article 4). In addition, the absorbent core 22 is creased along the folding line F1 (see FIG. 1) so that each side portion 221 faces the partial joint portion 33 side. Therefore, when the absorbent article 1 is used, each side portion 221 stands up toward the wearer (hereinafter referred to as "side upright state").

In the side upright state, the second joint 32 of the crotch part 11 approaches the lower surface of the side part 221, and part of the top sheet 21 is drawn between the edge 222 of the side part 221 and the back sheet 23. . As a result, in the top sheet 21 , the insertion portion 211 inserted between the edge portion 222 of the side portion 221 and the back sheet 23 and the insertion portion An extending portion 212 extending from 211 outward in the width direction (direction away from the absorbent core 22) is formed. In the absorbent article 1 of FIG. 3, due to the contraction of the elastic member 24, gathers are formed at the second joint portion 32 between the top sheet 21 and the back sheet 23, so that a part of the top sheet 21 is largely pulled in, The entry part 211 becomes conspicuous.

The inset part 211 is a part of the top sheet 21 facing the lower surface of the edge part 222 and covers part of the non-bonded area 223 in the absorbent core 22 . The extension part 212 includes a part arranged between the insertion part 211 and the back sheet 23 and a part in contact with the second joint part 32 in the top sheet 21 . In the absorbent article 1 , a depression (pocket) 213 is formed by the insertion portion 211 and the extension portion 212 . The recess 213 is a recess between the entry portion 211 and the extension portion 212 . In other words, in the side-upright state, the portion of the top sheet 21 around the edge 222 of the side portion 221 becomes a convex portion that protrudes outward in the width direction and toward the wearer. A recess 213 is formed between the two joints 32 .

Excretions discharged from the wearer are received by the absorbent article 1 . The raised side portions 221 of the absorbent core 22 prevent the water content of the excrement from leaking outward in the width direction. In addition, moisture that has moved to the outside in the width direction beyond the side portions 221 is captured by the recesses 213 . Since the depressions 213 are formed by the liquid-permeable top sheet 21 , the moisture trapped in the depressions 213 quickly moves to the lower surfaces of the side portions 221 and is absorbed by the absorbent core 22 . Furthermore, the widthwise outer end of the extension portion 212 is in contact with the wearer's skin, thereby suppressing the movement of moisture outward in the width direction beyond the extension portion 212 .

As described above, when the absorbent article 1 is used, the side portions 221 of the absorbent core 22 in the crotch portion 11 stand up toward the wearer. In the side-upright state, the top sheet 21 has an indentation portion 211 that enters between the edge portion 222 of each side portion 221 and the backsheet 23, and an extension that spreads outward in the width direction from the indentation portion 211. and a portion 212 . As a result, the recesses 213 capable of trapping moisture can be formed with a simple structure, and side leakage in the absorbent article 1 can be suppressed.

In the absorbent article 1, the edges 222 of each side portion 221 and the backsheet 23 are not joined, and the topsheet 21 and the backsheet 23 are joined outside the side portions 221 in the width direction. This makes it easier for part of the top sheet 21 to enter between the edge 222 of the side portion 221 and the back sheet 23 in the side upright state, and the entering portion 211 can be easily formed. A longitudinally extending elastic member 24 is also provided outside each side portion 221 in the width direction. As a result of contraction of the elastic member 24 , the lateral standing state is formed, and the extension portion 212 is formed with gathers. As a result, the insertion portion 211 can be formed more reliably.

When the absorbent article 1 is accommodated in the packaging bag, both side portions 221 of the absorbent core 22 in the crotch portion 11 are folded toward the top sheet 21 along two longitudinally extending folding lines F1. Accordingly, when the absorbent article 1 is used, each side portion 221 can be raised with the folding line F1 as a starting point, and the side portion standing state can be appropriately formed. In addition, in the absorbent article 1 in use, the extension portion 212 of the top sheet 21 is the sheet that is positioned closest to the wearer, and it is possible to form the depressions 213 while omitting the side sheets. As a result, the manufacturing cost of the absorbent article 1 can be reduced. Furthermore, since the absorbent core 22 is formed in a side standing state without providing cutouts and slits, the manufacturing cost of the absorbent article 1 can be further reduced.

FIG. 4 is a diagram showing another example of the absorbent article, and, like FIG. 2, shows a cross section of the crotch portion 11 in a state where the absorbent article 1a is stretched in the longitudinal direction and the width direction. In the absorbent article 1 a of FIG. 4 , the top sheet 21 has an insertion portion 211 and an extension portion 212 in a state where each side portion 221 of the absorbent core 22 is not raised. Moreover, the elastic member 24 is omitted in the absorbent article 1a. Other configurations are the same as in FIG. In the absorbent article 1a, illustration of the partial joints 33 and 34 is omitted.

The insertion portion 211 is a portion inserted between the edge portion 222 of each side portion 221 and the back sheet 23 , and the extension portion 212 is a portion extending outward in the width direction from the insertion portion 211 . In the absorbent article 1a, the topsheet 21 covers the side surfaces of the edge portions 222 of the side portions 221 and is folded outward in the width direction between the lower surfaces of the edge portions 222 and the backsheet 23 . In the top sheet 21 , the portion folded outward in the width direction (that is, the extension portion 212 ) is joined to the back sheet 23 by the second joining portion 32 . In the absorbent article 1 of FIG. 2 described above, the bottom surface of the edge 222 and the backsheet 23 are in contact with each other when stretched in the longitudinal direction and the width direction. Due to the presence of 21 , the lower surface of edge 222 is substantially out of contact with back sheet 23 .

As with the absorbent article 1 of FIG. 1, the absorbent article 1a of FIG. 4 is accommodated in the packaging bag while being folded along the folding lines F1 and F2. Therefore, in the absorbent article 1a taken out of the packaging bag, each side portion 221 of the absorbent core 22 is bent so as to stand up toward the wearer. Also, when the absorbent article 1a is used, the absorbent article 1a is attached inside the exterior article 4 as shown in FIG. The outer article 4 is provided with a pair of side walls 41 that rise toward the wearer. In the example of FIG. It rises to the side, forming a lateral standing position.

As described above, in the absorbent article 1a as well, the top sheet 21 has the insertion portion 211 inserted between the edge portion 222 of each side portion 221 and the back sheet 23, and the widthwise outer side from the insertion portion 211. and an extension 212 that widens to. As a result, side leakage in the absorbent article 1a can be suppressed with a simple structure.

Various modifications are possible in the absorbent article 1, 1a.

In the absorbent article 1 shown in FIG. 3, the indentation portion 211 and the extension portion 212 are exposed in the top sheet 21 by forming the side standing state, whereas in the absorbent article 1a shown in FIG. The topsheet 21 , with or without side uprights, comprises an inset portion 211 and an extension portion 212 . Therefore, in the absorbent article 1, 1a, the top sheet 21 should be provided with the insertion portion 211 and the extension portion 212 at least in the side standing state.

In the absorbent article 1, by providing the non-bonded region 223 between the absorbent core 22 and the backsheet 23 and the second bonded portion 32 between the topsheet 21 and the backsheet 23, the topsheet 21 and the absorbent Even if the first joint portion 31 with the core 22 is omitted, it is possible to form the insertion portion 211 in the side standing state. However, if the first joint 31 is omitted, the topsheet 21 bulges slightly above the edge 222 of each side 221 and is formed by the topsheet 21 entering between the edge 222 and the backsheet 23 . The indentation portion 211 to be inserted may be smaller. Therefore, it is preferable that the edges 222 of the side portions 221 and the top sheet 21 are joined together in order to more reliably form the insertion portions 211 in the side-upright state.

In the absorbent article 1a of FIG. 4 in which the indentation portion 211 and the extension portion 212 are pre-formed, the non-bonded regions 223 are omitted, i. It is also possible to However, in order to form a large depression 213 in the side upright state, it is preferable that the bottom surface of the edge 222 and the backsheet 23 are in a non-bonded state, ie, a non-bonded region 223 is provided.

Auxiliary absorbent pads attached to the inner side of the outer article are required to be inexpensive because they are frequently replaced. As described above, the absorbent articles 1 and 1a can be manufactured without the side sheets to reduce manufacturing costs. . Of course, the structure of the absorbent articles 1 and 1a may be used for absorbent articles other than auxiliary absorbent pads, such as pants-type and tape-type disposable diapers.

As in the example of FIG. 5, in the absorbent article 1 of FIG. 2, which is an auxiliary absorbent pad, the pair of side wall portions 41 of the outer article 4 can form a lateral upright state. , the elastic member 24 may be omitted. Moreover, when using the absorbent article 1, 1a, the side portions 221 of the absorbent core 22 may be folded toward the wearer by the wearer or the like, and the folding line F1 may be omitted. be.

In the absorbent article 1, 1a, the top sheet 21 is provided with the insertion portion 211 and the extension portion 212 substantially only at the crotch portion 11. 12, 13), the top sheet 21 may also have an inset portion 211 and an extension portion 212 .

The configurations in the above embodiment and each modified example may be combined as appropriate as long as they do not contradict each other.

Reference Signs List 1, 1a Absorbent article 11 Crotch part 21 Top sheet 22 Absorbent core 23 Back sheet 24 Elastic member 31 First joint part 32 Second joint part 211 Insertion part 212 Extension part 221 Side part 222 (Side part) ) edge F1, F2 folding line

Claims (6)

An absorbent article that receives excrement such as urine from a wearer,
a substantially sheet-like absorbent core that extends in the longitudinal direction and in the width direction perpendicular to the longitudinal direction;
a top sheet covering the main surface of the absorbent core on the wearer's side;
a back sheet covering the other main surface of the absorbent core;
with
An edge portion near the edge along the longitudinal direction of each side portion in the width direction of the absorbent core and the backsheet are not bonded, and the width direction of each side portion of the absorbent core is non-bonded. is non-bonded between the outwardly facing side of the and the topsheet and the backsheet;
The top sheet and the back sheet are joined outside the respective side portions in the width direction of the absorbent core,
the top surface of the edge of each side of the absorbent core and the top sheet are joined by joints extending in the longitudinal direction;
When the absorbent article is used, the side portions of the absorbent core in the crotch portion form a side standing state in which the side portions stand up toward the wearer,
At least in the side-upright state, the top sheet covers the side surface of the edge of each side of the absorbent core, and includes an inset portion that enters between the edge and the backsheet, and the edge. An absorbent article characterized by comprising an extending portion which is a portion folded outward in the width direction between the portion and the backsheet and which extends outward in the width direction from the insertion portion. The absorbent article according to claim 1,
further comprising an elastic member extending in the longitudinal direction outside each of the side portions in the width direction;
An absorbent article, wherein the edges of each of the side portions are in contact with the back sheet when the absorbent article is stretched in the longitudinal direction and the width direction. The absorbent article according to claim 1 ,
further comprising an elastic member extending in the longitudinal direction outside each of the side portions in the width direction;
The absorbent article is characterized in that the lateral upright state is formed by contraction of the elastic member. The absorbent article according to any one of claims 1 to 3,
In a state in which the absorbent article is accommodated in a packaging bag, both side portions of the absorbent core in the crotch portion are folded toward the top sheet by two folding lines extending in the longitudinal direction. Goods. The absorbent article according to any one of claims 1 to 4,
An absorbent article, wherein the extension portion of the top sheet is the sheet that is positioned closest to the wearer when the absorbent article is in use. The absorbent article according to claim 4,
In the absorbent article taken out of the packaging bag, the side portions of the absorbent core stand up toward the wearer due to the crease caused by the two folding lines to form the side standing state. An absorbent article characterized by:

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