JP2023005911A - Underpants type absorbent article - Google Patents

Abstract

To provide an underpants type absorbent article usable as a tape type one, and worn by a wearer with good wearability.SOLUTION: An underpants type absorbent article (1) for adults includes: an absorbent body (10); a waist member (20) having a front waist part (20f) and a rear waist part (20b) arranged overlapping the absorbent body (10) in a longitudinal direction, and expandable/contractable in a lateral direction; and engaging members (30) engaged detachably with a non-skin surface of the front waist part (20f). The front waist part (20f) and the rear waist part (20b) are connected. The engaging members (30) are connected to the front waist part (20f), and between both side edges (20fe, 20fe) in the lateral direction of the front waist part (20f), the front waist part (20f) has high elastic parts (20NA) having an elastic coefficient greater than that of a periphery in at least a part of overlap regions overlapping the engaging members (30) in a plane view.SELECTED DRAWING: Figure 8

Description

The present invention relates to pants-type absorbent articles.

A pants-type absorbent article that can be used as a tape type (unfolded type) by separating a part of the waist member of the pants-type absorbent article is known. Disclosed is a diaper that can be used in either a pants-type manner in which the two sides are joined together or an open-type manner in which opposite sides thereof are joined with fastening pieces.

JP-A-05-317356

In the diaper described in Patent Document 1, a cutting line for separating the front body from the back body is provided at a portion of the front body adjacent to a joint where the front body and the back body are joined at opposing sides. The disposable diaper can connect the front body and the back body through the fastening piece extending from the opposite side of the back body after being separated along the front body. However, the diaper of Patent Literature 1 is designed on the premise that it is worn by the wearer, not by the wearer himself/herself. Therefore, if the wearer were to use such a diaper while sitting on the toilet or standing (half-legged posture), the waist member constituting the front body would be cut off along the cutting line by himself/herself. As a result, it may be difficult to apply force to the cutting line, or the waist member may be stretched and difficult to cut. Moreover, it is conceivable that a part of the diaper may be damaged by applying excessive force when separating it. As described above, there is room for improvement in terms of ease of putting on pants-type absorbent articles, which can also be used as tape-type absorbent articles, when the wearer himself/herself puts them on.

The present invention has been made in view of the above problems, and its object is to provide a pants-type absorbent article that can be used as a tape type and is easy to wear by the wearer. That's what it is.

The main invention for achieving the above object is an absorbent main body having a vertical direction, a horizontal direction, and a front-rear direction that intersect with each other, and a front waist part arranged overlapping the absorbent main body in the front-rear direction. and a rear waist portion, comprising a waist member that expands and contracts in the left-right direction, and an engaging member that removably engages a non-skin side surface of the front waist portion, wherein the front waist portion and the rear waist portion is joined to the pants-type absorbent article for adults, wherein the engaging member is joined to the front waistline portion, and is located between both lateral side edges of the front waistline portion in the front waistline The part is a pants-type absorbent article characterized in that, in plan view, at least a part of the overlapping region overlapping with the engaging member has a high-elasticity part having a higher elastic modulus than the surrounding area.
Other features of the present invention will become apparent from the description of the specification and accompanying drawings.

According to the present invention, it is possible to provide a pants-type absorbent article that can be used as a tape type and that is easy to put on by the wearer.

1 is a schematic perspective view of a napkin 1; FIG. Fig. 2 is a schematic plan view of the napkin 1 in an unfolded and stretched state, viewed from the skin side in the thickness direction. FIG. 3 is a schematic cross-sectional view taken along the line AA of FIG. 2; 4A and 4B are schematic cross-sectional views of the napkin 1 viewed from the side of the waist opening 1a. Fig. 3 is a developed plan view of the napkin 1 in a state where the front waistline portion 20f is separated from the rear waistline portion 20b along the perforated line 25; 6A to 6C are diagrams illustrating an example of how the wearer wears the napkin 1. FIG. 7A to 7D are diagrams illustrating an example of how the wearer wears the napkin 1. FIG. It is the front view which looked at the underpants type napkin 1 from the front side. It is the front view which looked at the underpants type napkin 1 from the front side. 2 is a front view of the napkin 1 with the tab 30 engaged after being separated along the perforation line 25, viewed from the front side. FIG.

At least the following matters will become apparent from the descriptions of this specification and the accompanying drawings.
It has a vertical direction, a horizontal direction, and a front-back direction that intersect with each other, and includes an absorbent body, and a front waistline portion and a rear waistline portion that are arranged to overlap the absorbent body in the front-back direction, An adult pants-type absorbent article having a stretchable waist member and an engaging member detachably engaged with the non-skin side of the front waist portion, wherein the front waist portion and the back waist portion are joined together. In the article, the engaging member is joined to the front waistline portion, and between both side edges of the front waistline portion in the left-right direction, the front waistline portion has the engagement member The underpants-type absorbent article is characterized in that at least a part of the overlapped region has a high-elasticity portion having a higher elastic modulus than the surrounding area.

According to such a pants-type absorbent article, before wearing, the engaging member is held with one hand and spread outward in the left-right direction. While holding the region corresponding to the region with the other hand, if a pulling force is applied to the outside in the left-right direction so as to separate them from each other, the high-elasticity portion is difficult to stretch, so the front waist portion is likely to tear at the high-elasticity portion. .

In this pants-type absorbent article, the front waist portion includes an upper region including the upper edge in the vertical direction or a lower edge in at least a part of the region overlapping the engaging member in the left-right direction. It is desirable to have the high elastic portion in the lower region.

According to such a pants-type absorbent article, the upper edge or lower edge of the front waistline portion is the starting point of tearing when the front waistline portion is torn. Since the high-elasticity portion is a portion that is difficult to stretch and is easy to tear, the upper region including the upper edge or the lower region including the lower edge has such a high-elasticity portion, so that the starting point of tearing becomes easy to tear, The wearer can smoothly perform the tearing action.

In the pants-type absorbent article, in a natural state, the minimum length of the front waistline portion in the vertical direction in the region where the front waistline portion and the engaging member overlap in the left-right direction is 80 mm or more. 150 mm or less is desirable.

According to such a pants-type absorbent article, the length in the vertical direction of the front waist portion is set to 150 mm or less, so that the wearer can easily tear the front waist portion. If the length of the front waist portion in the vertical direction is too short, the area covering the wearer's body becomes too small, and there is a risk of causing anxiety. can be suppressed.

In such a pants-type absorbent article, it is desirable that the high-elasticity portion of the front waist portion is provided with a perforation line having a length in the vertical direction.

According to such a pants-type absorbent article, since the highly elastic portion is a portion that is difficult to stretch and is easily torn, providing the perforation line in such a highly elastic portion makes the front waist portion easier to tear.

In such a pants-type absorbent article, both side portions in the left-right direction of the front waistline portion and the back waistline portion are joined by a pair of joints, and in a natural state, the length of the joints in the vertical direction is The length is preferably longer than the length of the perforation line.

According to such a pants-type absorbent article, since the length of the tear line is shorter, the force per unit length applied to the joint when a certain force is applied when breaking the tear line The force per unit length applied to the part is greater. This makes it easier to break the perforation line.

In this pants-type absorbent article, the engaging member has an engaging portion that engages with the non-skin side surface of the front waist portion, and abuts against the abdominal side of the front waist portion along the perforation line. It is preferable that the engaging portion is positioned inside the cut line in the left-right direction before the portion is separated from the rear waist portion.

According to such a pants-type absorbent article, if there is a perforation line on the left-right direction inner side of the engaging portion, the area for attaching the engaging member after tearing is reduced. Even so, when the product is pulled up during wearing, it tends to tear at the perforation line. Since the engaging part is positioned on the inner side in the left-right direction of the cut line, it is possible to secure a wide waist size range, and to suppress breakage when pulling up the product when used without breakage.

In the pants-type absorbent article, in a state before the abdominal contact portion of the front waistline portion is separated from the back waistline portion along the cut line, the engaging member is positioned along the cut line. It is desirable that the upper end of the cut line is positioned above the upper end of the engaging member, or the lower end of the cut line is positioned below the lower end of the engaging member. .

According to such a pants-type absorbent article, since the perforation line can be visually recognized before opening the engaging member, the user can easily determine at which position the front waist portion should be torn, thereby improving the operability. be able to.

In such a pants-type absorbent article, it is desirable that the high-elasticity portion has a length of 10 mm or more inward in the left-right direction from the cut line in the natural state.

According to such a pants-type absorbent article, after being torn at the cut line, the portion of the highly elastic portion arranged inside the cut line is used when engaging the engaging member with the front waist portion. This is the part that serves as a knob. If the portion to be the knob is a highly elastic portion that is hard to deform, it is difficult to curl up and the wearer can easily pick it up. In addition, it becomes easier to pick up by having the width of the thumb or more as the part to be picked.

In such a pants-type absorbent article, it is desirable that the length from the inner end of the engaging portion to the inner end of the engaging member in the left-right direction is 5 mm or more and 50 mm or less.

According to such a pants-type absorbent article, by setting the length from the inner end of the engaging portion to the inner end of the engaging member to be 5 mm or more, it is possible to pinch the inner side of the engaging portion from the inner end with the fingertips. , the tab 30 can be easily peeled off from the front waist portion. On the other hand, by setting the length to 50 mm or less, the distance from the position where the engaging member is pinched to the cut line does not become too long, and the deterioration of operability when tearing the front waist portion along the cut line is prevented. can be done.

In such a pants-type absorbent article, the pants-type absorbent article has a pair of the engaging members, and the pair of engaging members are joined to the front waist portion on both sides in the left-right direction. In a plan view, the front waist portion has the high-elasticity portion in at least a part of each of the overlapping regions on both sides in the left-right direction that overlap the pair of engaging members, and the left and right sides of the front waist portion It is preferable that a low-elasticity portion having a smaller elastic modulus than the high-elasticity portion is continuously provided between the high-elasticity portions on both sides in the direction.

According to such a pants-type absorbent article, by providing stretchable low-elasticity portions between the hard-to-stretch high-elasticity portions on the left and right sides, it is possible to improve the fit of the absorbent article around the waist.

In such a pants-type absorbent article, the engaging member has an engaging portion that engages the non-skin side surface of the front waist portion, and the engaging portion is engaged with the front waist portion; Further, it is preferable that the low-elasticity portion has a portion that overlaps at least a portion of the engaging portion in plan view.

According to such a pants-type absorbent article, since the engaging portion is more likely to be engaged with the portion of the low elastic portion that is easily deformed (easily stretched) than the highly elastic portion that is difficult to be deformed, when engaging Having a portion where the low-elasticity portion overlaps at least a portion of the engaging portion makes it easier for the wearer to engage the engaging portion.

In such a pants-type absorbent article, it is desirable that the maximum length of the engaging member in the left-right direction is 20 mm or more and 120 mm or less.

According to such a pants-type absorbent article, since it has the maximum length in the above range, the front waistline part can be opened without changing hands after the engaging member is held by hand and opened to tear the front waistline part. easier to engage with.

In this pants-type absorbent article, the front waist portion has a cut line having a length in the vertical direction at one end in the left-right direction, and the front waist portion extends along the cut line. After separating the ventral contact portion of the body from the rear waist portion, the engagement member is engaged with the non-skin side surface of the front waist portion, and the engagement member is positioned under the front waist portion. It is desirable to have a protruding portion that protrudes downward in the vertical direction from the side edge.

According to such a pants-type absorbent article, the lower edge of the front waistline portion is hidden by the projecting portion of the engagement member in the portion overlapping with the engaging member, so that the edge of the front waistline portion after tearing (lower edge) is hidden. side edges) become less visible. Therefore, it is possible to bring the appearance closer to that of underwear.

===Embodiment===
Hereinafter, an underpants-type (shorts-type) napkin 1 (hereinafter also simply referred to as "napkin 1") will be described as an example of the underpants-type absorbent article according to the present invention. The pants-type absorbent article also includes pants-type diapers and the like.

<Basic structure of napkin 1>
FIG. 1 is a schematic perspective view of the napkin 1. FIG. FIG. 2 is a plan view of the napkin 1 in the unfolded and stretched state, viewed from the skin side in the thickness direction. FIG. 3 is a schematic cross-sectional view taken along line AA of FIG.

As shown in FIG. 1, the napkin 1 has "up-down direction", "left-right direction", and "front-back direction" that intersect (perpendicularly) each other. Moreover, as shown in FIG. 3, it has a "thickness direction" which is the direction in which each member is laminated. In the up-down direction, when the wearer wears the napkin 1, the waist side of the wearer is defined as the "upper side", and the crotch side of the wearer is defined as the "lower side". Further, of the front-to-rear directions, the side facing the wearer's abdomen when worn is defined as the "front side", and the side facing the wearer's back is defined as the "rear side". In addition, in the thickness direction, the side that comes into contact with the wearer's skin when the napkin 1 is worn by the wearer is defined as the "skin side", and the opposite side is defined as the "non-skin side".

The napkin 1 of the present embodiment is arranged so as to overlap a liquid-absorbing absorbent main body 10 that absorbs excretions such as menstrual blood and the non-skin side of the absorbent main body 10, and has a front waist portion 20f and a rear waist portion 20b. and a pair of tabs 30 (corresponding to engaging members) provided on both sides of the waist member 20 in the left-right direction.

The unfolded state of the napkin 1 shown in FIG. 2 is a state in which the pair of side joints 40 provided on both lateral sides of the napkin 1 are separated and the napkin 1 is opened and unfolded in a plane. In other words, the napkin 1 is folded in two at the center position CL in the vertical direction from the unfolded state shown in FIG. joint) to form a pants type. As a bonding method for the site bonding portion 40, a well-known bonding method such as heat welding or ultrasonic welding can be used. In the underpants-type napkin 1 (FIG. 1), a front waist portion 20f and a rear waist portion 20b are connected in an annular fashion to form one waist opening 1a and a pair of leg openings 1b.

The “stretched state” of the napkin 1 means that the entire napkin 1 (the entire product) is stretched by stretching each elastic member (for example, the absorbent elastic member 50 described later, the skin side sheets 22, 23, etc.) included in the napkin 1. is stretched without wrinkles. Specifically, the dimensions of each member constituting the napkin 1 (for example, the non-skin side sheet 21 and the skin side sheets 22, 23, etc., which will be described later) are the dimensions of the member alone (i.e., the state in which the elastic characteristics of the elastic member are not expressed) It refers to the state in which it is stretched until it matches or is close to the dimension at ). In the present embodiment, when comparing the absorbent body 10, the tabs 30 are disengaged (peeled off) and underpants-shaped (before being torn at the perforation line 25). It is preferable to measure and compare at . The tab 30 may be measured either after the napkin 1 has been opened or with it disengaged. Moreover, the above-described measuring method is an example, and other measuring methods may be used.

(Absorptive main body 10)
As shown in FIG. 2, the absorbent main body 10 has a substantially rectangular shape in plan view with its longitudinal direction along the vertical direction of the napkin 1 . As shown in FIG. 3, the absorbent main body 10 includes an absorbent core 11 along the longitudinal direction (vertical direction), a top sheet 12 arranged closer to the skin than the absorbent core 11, and an absorbent core 11. and a back sheet 13 arranged on the non-skin side of 11 . However, the absorbent main body 10 may be provided with sheet members other than this. For example, a second sheet (not shown) may be provided between the top sheet 12 and the absorbent core 11 in the thickness direction.

The absorbent core 11 is a member that absorbs and retains liquid such as menstrual blood, and is formed of, for example, liquid-absorbing fibers such as pulp fibers mixed with superabsorbent polymer (SAP). The absorbent core 11 may be covered with a liquid-permeable sheet member (core wrap sheet) such as tissue paper or nonwoven fabric.

The top sheet 12 is a liquid-permeable sheet member that can come into contact with the wearer's skin when worn, and is made of, for example, a hydrophilic air-through nonwoven fabric or spunbond nonwoven fabric.

The back sheet 13 is arranged on the non-skin side of the liquid-impermeable sheet 13a for suppressing leakage of liquid such as menstrual blood absorbed by the absorbent core 11 to the outside, and the liquid-impermeable sheet 13a. and a hydrophobic sheet 13b. For example, a resin film or the like is used as the liquid-impermeable sheet 13a, and a flexible non-woven fabric or the like is used as the hydrophobic sheet 13b. However, the hydrophobic sheet 13b may not necessarily be provided, and the back sheet 13 may be composed only of the liquid-impermeable sheet 13a.

In addition, leakage prevention walls (not shown) may be provided on both sides in the left-right direction of the absorbent main body 10 . The leak-proof wall portion is a portion corresponding to a so-called three-dimensional gather. It suppresses leakage of excretory liquid such as menstrual blood to the outside of the absorbent main body 10 .

In addition, the absorbent body 10 is provided with a plurality of absorbent body elastic members 50 that expand and contract along its longitudinal direction. The absorber elastic member 50 is made of, for example, rubber thread, and in this embodiment, is arranged in a longitudinally stretched state between the liquid-impermeable sheet 13a and the hydrophobic sheet 13b (FIG. 3). . In the napkin 1 of this embodiment, five absorbent body elastic members 50 are provided at predetermined intervals in the left-right direction (see FIG. 2). The expansion ratio of the absorbent elastic member 50 is preferably about 1.4 to 3.3 times. The extension ratio is expressed by a value obtained by dividing the length of the elastic member in the stretched state by the length of the elastic member in the natural state. It is preferable to set the extension ratio of the absorbent body elastic member 50 to a relatively large ratio. By doing so, as shown in FIG. 8 to be described later, the absorbent main body 10 is lifted toward the wearer's skin side, and the absorbent main body 10 is easily brought into close contact with the wearer's crotch (vaginal opening), and excretory fluid is discharged. leakage can be suppressed.

(Waist circumference member 20)
The waist member 20 is an outer body composed of a plurality of sheet members, and includes at least a non-skin-side sheet 21 and skin-side sheets 22 and 23 (see FIG. 3). Further, in the following description, of the waist member 20, in the longitudinal direction, the front waist portion 20f is the portion on the front side (abdominal side) of the central position CL, and the rear side (dorsal side) of the center position CL is the rear waist portion 20f. It is also called a waist portion 20b. The front waist portion 20f is a portion that contacts the ventral side of the wearer's body when the napkin 1 is worn. Further, the rear waist portion 20b is a portion that comes into contact with the back side of the wearer's body when the napkin 1 is worn.

The non-skin-side sheet 21 is a non-stretchable sheet member arranged closest to the non-skin side of the napkin 1, and is formed of, for example, spunbond nonwoven fabric or SMS nonwoven fabric. As shown in FIG. 2, the non-skin-side sheet 21 of the present embodiment has a shape that narrows inward in the left-right direction at the central portion in the longitudinal direction.

The skin-side sheet 22 is a stretchable sheet member laminated on the skin side of the non-skin-side sheet 21 on the front side (abdominal side) in the longitudinal direction. The skin-side sheet 22 is made of stretchable nonwoven fabric, for example. The term “stretchable nonwoven fabric” refers to a nonwoven fabric that contains stretchable fibers and extensible fibers with lower contractility than the stretchable fibers and that has been subjected to an appropriate stretching treatment such as gear stretching. The skin-side sheet 22 of the present embodiment can use polyurethane-based elastomer fibers, which are a type of elastic thermoplastic elastomer, as stretchable fibers, and non-elastic thermoplastic resin as stretchable fibers. It is possible to use fibers of polypropylene (PP), which is a type of polyolefin resin.

The skin-side sheet 22 is joined to the non-skin-side sheet 21 by a plurality of scattered sheet joining portions (not shown), whereby the front waist portion 20f is given elasticity at least along the left-right direction. be. In this embodiment, the sheet joints are formed using known joining means such as ultrasonic welding.

The skin-side sheet 23 is a stretchable sheet member laminated on the skin side of the non-skin-side sheet 21 on the rear side (dorsal side) in the longitudinal direction. The skin-side sheet 23 has the same configuration as the skin-side sheet 22 . That is, the skin-side sheet 23 is formed of a stretchable nonwoven fabric, and is joined to the non-skin-side sheet 21 by a plurality of scattered sheet joining portions (not shown). As a result, the rear waist portion 20b is provided with stretchability in at least the left-right direction.

Sheet members other than the non-skin-side sheet 21 and the skin-side sheets 22 and 23 may be provided as sheet members constituting the waist member 20 . For example, the waist member 20 may have a three-layer structure in which a non-stretchable non-woven fabric is arranged on the skin side of the stretchable skin-side sheets 22 and 23, and the stretchable non-woven fabric is sandwiched between the non-stretchable non-stretchable non-woven fabrics. In the case of a three-layer structure, the skin-side sheets 22 and 23 may be elastic films. Moreover, the non-skin side sheet 21 may be separated into the front side and the back side. In that case, the non-skin side of the back sheet 13 may be exposed between the front non-skin side sheet 21 and the rear non-skin side sheet 21, or the front non-skin side sheet 21 and the rear non-skin side sheet 21 may be exposed. A separate non-skin-side sheet connecting the non-skin-side sheet 21 may be provided at the crotch portion.

(Tab 30)
The napkin 1 has a pair of tabs 30 (engagement members) detachably engaged with the non-skin side surfaces of the front waistline portion 20f on both sides of the waistline member 20 in the left-right direction. In addition, in FIG. 2, in the napkin 1 seen from the skin side, the tab 30 engaged with the non-skin side surface of the front waist part 20f is imaginarily shown. The tab 30 has a base sheet 31 and an engaging portion 32 . The base sheet 31 is a sheet member made of nonwoven fabric or the like. The laterally outer edge of the base sheet 31 is joined to the waistline member 20 by the side joints 40 . That is, the front waistline portion 20f, the rear waistline portion 20b, and the tab 30 are integrally joined by the side joint portion 40. As shown in FIG. However, the tab 30 may be joined to the waist member 20 at a location different from the side joints 40 .

The engaging portion 32 is provided at an end portion of the base sheet 31 opposite to the side joined by the side joint portion 40 in the left-right direction. The engaging portion 32 is provided on the skin side of the base sheet 31, faces the non-skin side of the front waist portion 20f, and is a member that removably engages the non-skin side of the front waist portion 20f. As the engaging portion 32, a male member of a hook-and-loop fastener provided with projections (hook members) that are caught by the fibers forming the non-skin side sheet 21 can be exemplified. The non-skin side surface of the non-skin side sheet 21 may be provided with a member (for example, a female member of a hook-and-loop fastener) with which the engaging portion 32 is easily engaged.

<How to attach napkin 1>
4A and 4B are schematic cross-sectional views of the napkin 1 viewed from the side of the waist opening 1a. FIG. 4A is a diagram of a napkin 1 used in a pants type, and FIG. 4B is a diagram of a napkin 1 used in a tape type. FIG. 5 is a developed plan view of the napkin 1 with the front waistline portion 20f separated from the rear waistline portion 20b along the perforation line 25. FIG.

When the napkin 1 is taken out of the package, the napkin 1 is of a pants type (FIG. 4A) in which the front waistline portion 20f and the rear waistline portion 20b are connected in a loop. Therefore, the wearer can put on and take off the napkin 1 while it is in the form of pants.

In addition, the front waist portion 20f of the napkin 1 has perforations 25 having lengths in the vertical direction at both ends in the left-right direction. Therefore, the front waistline portion 20f can be vertically broken along the perforation line 25 to separate a part of the front waistline portion 20f from the rear waistline portion 20b. As shown in FIG. 5, the napkin 1 after separation has a tape shape in which a pair of tabs 30 extend outward in the left-right direction from the rear waist portion 20b. Therefore, the wearer can put on and take off the napkin 1 in the form of a tape.

In the following description, the portion of the front waistline portion 20f that is separated from the rear waistline portion 20b on at least one side in the left-right direction is also referred to as an "abdominal contact portion 20fA". A portion of the front waistline portion 20f that remains on the side joint portion 40 side without being separated from the rear waistline portion 20b is also referred to as a "non-separated portion 20fB".

6A to 6C and 7A to 7D are diagrams illustrating an example of how the wearer wears the napkin 1. FIG. A person who wears the napkin 1 generally puts on and takes off the napkin 1 by himself/herself. Also, the wearer attaches and detaches the napkin 1 while sitting on a toilet or the like (not shown) as shown in FIG.

Next, an example of a method of attaching the napkin 1 with a tape type will be described. First, as shown in FIG. 6A, the wearer opens the tab 30 on one side in the left-right direction of the pants-type napkin 1 to the outside (one side) in the left-right direction to expose the perforation line 25 . Next, as shown in FIG. 6B, the wearer vertically breaks one end of the front waist portion 20f in the left-right direction along the perforation line 25, and cuts the abdomen, which is a part of the front waist portion 20f. The contact portion 20fA is separated from the rear waist portion 20b. Next, the wearer pulls the cut-off portion of the waist member 20 to the front side of the thigh and wraps the waist member 20 around one thigh, as shown in FIG. 6C. Then, as shown in FIG. 7A, the tab 30 (engagement portion 32) is engaged with the non-skin side surface of the front waist portion 20f (abdominal contact portion 20fA) on the thigh.

In the state of FIG. 7A, the side joints 40 are positioned on the thighs, and the absorbent main body 10 (absorbent core 11) hangs down between the thighs. Therefore, the wearer rotates the napkin 1 along the circumferential direction of the thigh (the direction shown on the right thigh in FIG. 7A). Then, as shown in FIG. 7B, the side joints 40 are aligned with one's armpits and the absorbent body 10 is pulled up between the thighs.

Next, as shown in FIG. 7C, the wearer opens the tab 30 on the opposite side to the outside in the left-right direction, and moves the other end of the front waist portion 20f in the left-right direction along the perforation line 25 in the up-down direction. It is broken to separate the ventral contact portion 20fA, which is a part of the front waistline portion 20f, from the rear waistline portion 20b. At the same time, the wearer corrects the inclination of the absorbent main body 10, which is inclined toward the thigh side around which the napkin 1 is wrapped, so as to follow the direction in which the thigh extends. direction center). Then, as shown in FIG. 7D, the cut-off portion of the waist member 20 is pulled to the front side of the thigh, the waist member 20 is wrapped around the opposite thigh, and the front waist member 20f is placed on the thigh. A tab 30 is engaged on the skin side.

By doing so, as shown in FIG. 4B, the ventral contact portion 20fA of the front waistline portion 20f separated by the perforation line 25 is again annularly connected to the rear waistline portion 20b by the pair of tabs 30. . Also, both thighs of the wearer pass through the pair of leg openings 1 b of the napkin 1 . Finally, the wearer pulls up the napkin 1 to complete wearing of the napkin 1 .

By having the tab 30 detachably engaged with the non-skin side of the front waist portion 20f in this manner, the wearer can visually recognize the tab 30 on the front side of the wearer when using the napkin 1 in a tape shape. The tab 30 can be engaged with the front waist portion 20f while moving. Therefore, the wearability is good when the wearer wears the napkin 1 by himself/herself. Also, when removing the napkin 1, the wearer can remove the tab 30 from the front waist portion 20f while visually recognizing the tab 30 on the front side of the wearer.

In addition, when the napkin 1 is attached while still in the pants shape, it is possible to take off the napkin 1 in the pants shape, but it is also possible to remove the napkin 1 by tearing the front waist portion 20 f along the cutting line 25 . be. Conversely, when the napkin 1 is attached in a tape-type state, the napkin 1 can be taken off without removing the tab 30 .

Like the napkin 1 of this embodiment, in order to make the pants type (shorts type) napkin as a tape type so that it can be worn by the wearer himself, after tearing a part of the waist member and placing it on the body, the tab When fixing to the waist part, if the waist member is difficult to break, there is a risk that the wearer will have to change the grip many times to try to break it, and a part of the napkin will be damaged by applying more force than necessary. There are fears, etc.

Regarding this point, the napkin 1 of this embodiment has the following configuration. 8 and 9 are front views of the underpants-type napkin 1 viewed from the front side. First, as shown in FIGS. 2 and 5, the front waistline portion 20f and the rear waistline portion 20b each have skin-side sheets 22 and 23 that stretch in the left-right direction and a waist elastic member 24 that stretches in the left-right direction. It has elasticity. That is, at least the central portion in the left-right direction of the front waist portion 20f and the rear waist portion 20b is stretched in the left-right direction by a stretchable region (a low elastic portion 20EA described later) that stretches in the left-right direction, and the napkin 1 fits around the wearer's waist. to fit. Further, as shown in FIG. 8 (and FIGS. 2 and 5), the front waist portion 20f has high elastic portions 20NA having a higher elastic modulus than the surroundings at both ends in the left-right direction. As shown in FIG. 9, the high-elasticity portion 20NA in the present embodiment extends from the side edge 20fe to a position overlapping at least a portion of the engaging portion 32 on both sides in the left-right direction of the front waist portion 20f, and in the vertical direction. It is provided from the upper edge 20fup to the lower edge 20fdw of the front waist portion 20f. Note that the high-elasticity portion 20NA is not limited to the above-described range, and is formed between the lateral side edges 20fe, 20fe of the front waistline portion 20f in an overlapping region 20fc (FIG. 8)).

The modulus of elasticity of the front waist portion 20f is determined, for example, by cutting out the high-elasticity portion 20NA from the front waist portion 20f and the portion between the left and right high-elasticity portions 20NA in a natural state, and preparing samples using a tensile tester (for example, ( It may be determined by performing a tensile test using an autograph type tensile tester AG-1KN1 manufactured by Shimadzu Corporation, and calculating the tensile modulus.

In the present embodiment, the high-elasticity portion 20NA of the front waist portion 20f includes a plurality of scattered sheets when the skin-side sheet 22 and the non-skin-side sheet 21 forming the front waist portion 20f are joined by ultrasonic bonding. It is formed by making the bonding pattern of the bonding portion (not shown) different between the high-elasticity portion 20NA and the low-elasticity portion 20EA, which will be described later. Specifically, for example, by increasing the number of sheet joints in the high-elasticity portion 20NA, the stretchability of the skin-side sheet 22 may be weakened to form the high-elasticity portion 20NA.

It should be noted that other bonding methods such as heat sealing may be used instead of ultrasonic bonding. Alternatively, the highly elastic portion 20NA may be formed by another method. As an example, another non-stretchable sheet member such as a non-woven fabric is attached to the portion forming the highly elastic portion 20NA. By making the skin-side sheet 22 of the high-elasticity portion 20NA difficult to stretch, the high-elasticity portion 20NA having a large elastic modulus may be formed. Alternatively, for example, instead of using a stretchable nonwoven fabric as a material for forming the front waistline portion 20f, the front waistline portion 20f is formed of two non-stretchable sheet members such as nonwoven fabric, and a thread is inserted between the two sheet members. A high elastic portion 20NA having a desired elastic modulus may be formed by arranging an elastic member made of rubber that expands and contracts in the horizontal direction and changing the thickness of the thread rubber between the high elastic portion 20NA and the low elastic portion 20EA. good.

When using the napkin 1 as a tape type, the wearer first holds the tab 30 spread outward in the left-right direction with one hand as shown in FIG. A portion corresponding to the overlapping region 20fc that overlaps with the tab 30 is held with the other hand, and a pulling force is applied laterally outward so as to separate them from each other. Since the high-elasticity portion 20NA of the front waistline portion 20f is resistant to deformation (stretching), the front waistline portion 20f is easily broken at the high-elasticity portion 20NA. Since the wearer can easily tear the front waist part 20f at the first stage of the procedure of wearing by himself/herself, the wearability is improved, and the next procedure can be proceeded smoothly. Similarly, when breaking the tab 30 on the opposite side (during the action shown in FIG. 7C), the wearer can easily break the front waist portion 20f at the high elastic portion 20NA and can wear it while sitting. sexuality is also improved.

Further, the high-elasticity portion 20NA of the front waist portion 20f in the present embodiment is provided from the upper edge 20fup to the lower edge 20fdw in the vertical direction, but the high-elasticity portion 20NA overlaps the tab 30 in the horizontal direction. , the high elastic portion 20NA may be provided in an upper region including the upper edge 20fup or a lower region including the lower edge 20fdw. The upper edge 20fup or the lower edge 20fdw of the front waistline portion 20f is a tear starting point when the front waistline portion 20f is broken as shown in FIGS. 6B and 7C. In particular, as shown in FIG. 6B, when taking out the product and tearing one end of the front waistline portion 20f in the left-right direction vertically along the perforation line 25, the user can cut the front waistline portion 20f. It often breaks from the upper edge 20fup side. In such a case, if the high-elasticity portion 20NA is provided in the upper region including the upper edge 20fup, the tearing action can be performed more smoothly. On the other hand, as shown in FIG. 7C, when tearing the edge on the opposite side (the other side) in the left-right direction in the sitting state in the vertical direction along the perforation line 25, the user can cut the lower side of the front waist portion 20f. It often breaks from the edge 20fdw side. In such a case, if the high-elasticity portion 20NA is provided in the lower region including the lower edge 20fdw, the tearing action can be performed more smoothly.

The napkin 1 is a pants-type absorbent article for adults. The vertical length L1 (FIG. 8) of the waist portion 20f is short. Specifically, as shown in FIG. 8, the tabs 30 joined to the side joints 40 are closed inward in the left-right direction and engaged with the non-skin side surfaces of the front waistline portion 20f in a natural state. In the napkin 1, the minimum value of the vertical length L1 of the front waist portion 20f in the region 20fc where the front waist portion 20f and the tab 30 overlap in the left-right direction is 80 mm or more and 150 mm or less.

In addition, when the initial state of the napkin 1 taken out of the package is the state of FIG. 8, the measurement is performed with the napkin 1 in the initial state and the natural state. When the initial state is not the state shown in FIG. 8 (for example, when the tab 30 is folded), the napkin 1 in the natural state (the waist member 20 in the natural state) is positioned inside the side joint 40 in the left-right direction. The measurement is performed with the tab 30, which is spread out, engaged with the front waist portion 20f.

A region 20fc of the front waistline portion 20f that overlaps with the tab 30 is a portion that is likely to be gripped by the wearer when the tab 30 is opened to tear the front waistline portion 20f as shown in FIGS. 6B and 7C. Therefore, by setting the vertical length L1 of the region 20fc to 150 mm or less, the wearer can easily tear the front waist portion 20f. On the other hand, if the length L1 of the front waist portion 20f is too short, the area covering the wearer's body will be too small, which may make the wearer uneasy. Such anxiety can be suppressed by making it 80 mm or more.

Further, as shown in FIG. 9, a cut line 25 having a length in the vertical direction is provided in the high elastic portion 20NA of the front waist portion 20f. The perforation line 25 is a line that guides tearing when the wearer breaks the front waist portion 20f. easier to break.

Further, as shown in FIG. 9, the napkin 1 in its natural state is engaged with the non-skin side surface of the front waistline portion 20f in a state where the tabs 30 joined to the side joint portions 40 are closed inward in the left-right direction. , the length L2 of the side joint portion 40 in the vertical direction is longer than the length L3 of the cut line 25 . The shorter length of the tear line 25 provides less force per unit length on the side joint 40 when a constant force is applied to perform the tearing action shown in FIGS. 6B and 7C. Also, the force per unit length applied to the perforated line 25 portion is larger. Therefore, when tearing the front waist portion 20f, it becomes easy to tear along the perforation line 25. - 特許庁

Also, as shown in FIG. 9, the state before the ventral contact portion 20fA of the front waistline portion 20f is separated from the rear waistline portion 20b along the cutting line 25, and the tab 30 is attached to the front waistline portion 20f. In the state of being engaged with the skin side surface, the engaging portion 32 is located inside the perforated line 25 in the left-right direction. If the cutout line 25 is located inside the engaging portion 32 in the left-right direction, for example, after performing the tearing action shown in FIG. In addition, the length in the left-right direction of the ventral contact portion 20fA of the front waist portion 20f is shortened, and the area where the tab 30 is attached is reduced. That is, after being cut off, the tab 30 is pulled inward in the left-right direction and fixed so as to straddle the perforation line 25 on the ventral contact portion 20fA side, which narrows the usable waist size range. Further, even when the napkin 1 is used without tearing, the front waist portion 20f expands and contracts in the left-right direction in the portion inside the engaging portion 32 in the left-right direction, and such a position is used. If the perforation line 25 is provided, the product (napkin 1) is easily torn at the perforation line 25 when the product (napkin 1) is pulled up during wearing. Therefore, as in the present embodiment, the engagement portion 32 is positioned inside the perforated line 25 in the left-right direction, so that the size range of the waist circumference can be widened, and when used without tearing, when pulling up Fracture can also be suppressed.

Similarly, the state before the ventral contact portion 20fA of the front waistline portion 20f is separated from the rear waistline portion 20b along the cut line 25, and the tab 30 is engaged with the non-skin side of the front waistline portion 20f. In the mated condition, tab 30 is positioned to cover at least a portion of tear line 25 . An upper end 25up of the perforation line 25 is located above an upper end 30up of the tab 30. As shown in FIG. If the tab 30 is arranged to cover the entire cut line 25 of the front waist portion 20f, the wearer cannot grasp the position of the cut line 25 until the tab 30 is opened laterally outward. Since a part of the perforation line 25 can be visually recognized before opening, the wearer can easily determine at which position the front waist portion 20f should be torn, and the wearability can be improved. In this embodiment, the lower end of the perforation line 25 is covered with the tab 30 and is difficult to see, but the lower end of the perforation line 25 may be positioned below the lower end of the tab 30 . By doing so, it is likewise easier for the wearer to determine where to tear.

In addition, the high-elasticity portion 20NA extends from the side edge 20fe of the front waist portion 20f to the inner side of the cutoff line 25 in the left-right direction. It preferably has a length of 10 mm or more (length W20 in FIG. 9) toward the inner side of the . After tearing the front waist portion 20f along the cut line 25, the portion of the high elastic portion 20NA that is arranged inside the cut line 25 is used by the wearer when the tab 30 is pulled from the front waist portion 20f (abdominal contact portion). 20fA) is a part that becomes a knob when engaging with the non-skin surface side. Since the high-elasticity portion 20NA is difficult to deform, the high-elasticity portion 20NA that serves as the knob is less likely to curl up, making it easier for the wearer to pick it up. In addition, when the length W20 is 10 mm or more, it is close to the width of the thumb of the wearer or equal to or greater than the width of the thumb of the wearer, making it easier to pick up.

When the wearer peels off (disengages) the tab 30 from the front waist portion 20f, it is assumed that the wearer holds the tip side of the tab 30 and peels it off. As shown in FIG. 9, the length W30 from the inner end 32e of the engaging portion 32 to the inner end 30e of the tab 30 in the left-right direction is preferably 5 mm or more and 50 mm or less. By setting the length W30 from the inner end 32e of the engaging portion 32 to the inner end 30e of the tab 30 to be 5 mm or more, the inner side of the inner end 32e of the engaging portion 32 can be pinched with the fingertips, and the front waist portion 20f can be pulled out. The tab 30 can be easily peeled off. On the other hand, by setting the length W30 to 50 mm or less, the distance from the position where the tab 30 is pinched to the perforation line 25 does not become too long, and the operability when tearing the front waist portion 20f along the perforation line 25 is lowered. can be prevented.

Further, as shown in FIG. 2, in the pants-type absorbent article 1 in the unfolded and stretched state, the maximum length W5 of the tabs 30 in the left-right direction is preferably 20 mm or more and 120 mm or less. By setting the length W5 of the tab 30 in the left-right direction to 20 mm or more, the wearer can easily hold the tab 30 when engaging the tab 30 with the front waist portion 20f. On the other hand, by setting the length W6 of the tab 30 in the lateral direction to 120 mm or less, it is possible to suppress the contact of the tab 30 opened to the outside with the toilet bowl when the napkin 1 is wrapped around the thigh. Also, by not making the length W5 of the tab 30 in the horizontal direction too long, the wearer can engage the engaging portion 32 with the front waist portion 20f after opening the tab 30 and tearing the front waist portion 20f. There is no need to switch the tab 30 to a position closer to the engaging portion 32 to make it easier.

Further, the base sheet 31 constituting the tab 30 of the present embodiment is made of nonwoven fabric or the like, and substantially does not include elements that allow the tab 30 itself to expand and contract. Comparing the tab 30 with the front waistline portion 20f, the tab 30 has a larger modulus of elasticity than the high-elasticity portion 20NA of the front waistline portion 20f. That is, the tab 30 is more difficult to deform (stretch) than the highly elastic portion 20NA. Therefore, when the tab 30 and the front waistline portion 20f are held and broken along the perforation line 25 as shown in FIGS. 6B and 7C, the force of pulling the tab 30 is easily transmitted to the high elastic portion 20NA of the front waistline portion 20f. .

2, in the napkin 1 in the unfolded and stretched state, from one end of the napkin 1 to the center in the vertical direction (the direction orthogonal to the left-right direction and along the longitudinal direction of the absorbent body 10) The length L6 to CL is preferably 200 mm or more and 350 mm or less. By setting the length L6 to 200 mm or more, it is possible to match the size of the napkin 1 to an adult wearer. On the other hand, by setting the length L6 to 350 mm or less, when the napkin 1 is wrapped around the thigh, it is difficult for the napkin 1 to hang down, and the contact of the napkin 1 to the toilet bowl can be suppressed.

In the napkin 1 of the present embodiment, as shown in FIG. 8, the front waist portion 20f includes, in a plan view, a high elastic portion 20NA, a high elastic portion 20NA, and a high elastic portion 20NA in at least a portion of each of the overlapping regions 20fc on both sides in the left and right direction overlapping the pair of tabs 30 in plan view. It has 20NA. A low-elasticity portion 20EA having a smaller elastic modulus than the high-elasticity portion 20NA is continuously provided between the high-elasticity portions 20NA, 20NA on both sides in the left-right direction of the front waist portion 20f. The low-elasticity portion 20EA is a portion that expands and contracts in the left-right direction by the skin-side sheet 22 and the waist elastic member 24, as shown in FIG. By having the low-elasticity portion 20EA, the napkin 1 fits the waist of the wearer. In particular, when the napkin 1 is used as a tape type (FIG. 4B), the ventral contact portion 20fA of the front waistline portion 20f is separated from the back waistline portion 20b, but the ventral contact portion 20fA of the front waistline portion 20f is separated from the back waistline portion 20b. The portion 20fA is pulled outward on both sides in the left-right direction, making it easier to fit around the waist of the wearer. Further, after the tab 30 is attached, the high-elasticity portions 20NA, 20NA are provided outside the engaging portion 32 in the left-right direction. Furthermore, the highly elastic portions 20NA, 20NA are present closer to the skin than the tab 30 is. Since the high-elasticity portion 20NA is hard to deform, the left-right direction end portions of the front waist portion 20f are less likely to curl up, and since such a high-elasticity portion 20NA is a portion that comes into contact with the skin when worn, it reduces discomfort of the wearer. can also

Moreover, it is preferable that the low-elasticity portion 20EA has a portion that overlaps at least a portion of the engaging portion 32 in a state where the engaging portion 32 of the tab 30 is engaged with the front waist portion 20f and in plan view. The engaging portion 32 is more likely to engage with the easily deformable (easily stretchable) low-elasticity portion 20EA than with the hard-to-deform high-elasticity portion 20NA. In other words, the projections of the engaging portion 32 for catching on the fibers are more likely to catch on the wrinkled part due to contraction than on the part that is nearly taut. Therefore, when engaging the engaging portion 32 , having a portion that overlaps with the low elastic portion EA makes it easier for the wearer to engage the engaging portion 32 .

FIG. 10 is a front view of the napkin 1 with the tab 30 engaged after being separated along the tear line 25, viewed from the front. In the napkin 1 shown in FIG. 10, after separating the ventral contact portion 20fA of the front waistline portion 20f from the back waistline portion 20b along the cutting line 25, the separated ventral contact portion 20fA is spread in a natural state. The tab 30 is engaged with the non-skin side of the front waist portion 20f. As shown in the figure, when the tab 30 is engaged, the tab 30 has a projecting portion 30T projecting downward in the vertical direction from the lower edge 20fdw of the front waistline portion 20f. In order to use it as a tape type, even when the front waistline portion 20f is torn along the perforation line 25 and the tab 30 is engaged again, the lower edge of the front waistline portion 20f can be pulled by the projecting portion 30T of the tab 30. By hiding the left and right ends of 20fdw, it becomes difficult to see the end (lower side edge 20fdw) of the front waistline portion 20f after being torn. By doing so, it is possible to make the napkin 1 look more like underwear.

===Others===
The above-described embodiments are intended to facilitate understanding of the present invention, and are not intended to limit and interpret the present invention. It goes without saying that the present invention can be modified and improved without departing from its spirit, and that equivalents thereof are included in the present invention.

In the above-described embodiment, stretchable sheets such as stretchable nonwoven fabric are used as the skin-side sheets 22 and 23 constituting the waist member 20, thereby imparting stretchability to the waist member 20 in the left-right direction. 20 may be provided with other elastic members. For example, as shown in FIG. 2, waist elastic members 24 such as rubber threads may be provided at the upper ends of the front waist portion 20f and the rear waist portion 20b so as to be able to expand and contract along the left-right direction. By providing such a waist elastic member 24, the fit to the waist opening 1a is further improved, and displacement of the waist member 20 when the napkin 1 is worn can be suppressed.

In the above-described embodiment, the tabs 30 are provided on both sides in the left-right direction of the waist member 20, but may be provided on only one side. For example, by pulling the tab 30 provided only on one side during use, the front waist portion 20f can be easily torn along the left-right direction inner end of the side joint portion 40 having a large difference in rigidity. It may be a configuration. As a result, the underpants-type napkin can be unfolded only on one side when used. In this case, since the left-right direction inner end of the side joint portion 40 functions as the perforation line 25 of the present embodiment, the perforation or the like does not necessarily have to be provided.

1 napkin (pants-type absorbent article) (this embodiment),
1a waist opening, 1b leg opening,
2 napkin (pants-type absorbent article) (second embodiment),
10 absorbent body,
11 absorbent core,
12 topsheet,
13 back sheet, 13a liquid-impermeable sheet, 13b hydrophobic sheet,
20 waist member,
20f front waist portion, 20fA ventral contact portion 20fA,
20fB non-separation portion, 20fc overlapping region 20fe side edge, 20fup upper side edge,
20fdw lower edge, 20b rear waist part,
20EA low elastic portion, 20NA high elastic portion,
21 non-skin side sheet, 22 skin side sheet, 23 skin side sheet,
24 waist elastic member, 25 separating portion,
30 tabs,
30T protrusion,
31 base sheet, 32 engaging portion,
40 side joint (joint)
50 absorber elastic member,
CL center position

Claims (13)

having a vertical direction, a horizontal direction, and a front-back direction that intersect each other;
an absorbent body;
a waist member extending and contracting in the left-right direction, the waist member including a front waist portion and a rear waist portion arranged over the absorbent main body in the front-rear direction;
an engaging member that removably engages the non-skin side of the front waist portion;
A pants-type absorbent article for adults in which the front waistline portion and the back waistline portion are joined,
The engaging member is joined to the front waist portion,
Between both side edges in the left-right direction of the front waist portion,
The underpants-type absorbent article, wherein the front waist portion has a high-elasticity portion having a higher elastic modulus than the surrounding area in at least a part of an overlapping region overlapping with the engaging member in a plan view. The pants-type absorbent article according to claim 1,
The front waist portion has the high-elasticity portion in an upper region including the upper edge in the vertical direction or in a lower region including the lower edge in at least a portion of the region overlapping the engaging member in the left-right direction. A pants-type absorbent article characterized by: The pants-type absorbent article according to claim 1 or 2,
In a natural state, the minimum length of the front waistline portion in the vertical direction in the region where the front waistline portion and the engaging member overlap in the left-right direction is 80 mm or more and 150 mm or less. type absorbent article. The pants-type absorbent article according to any one of claims 1 to 3,
The underpants-type absorbent article, wherein the highly elastic portion of the front waist portion is provided with a perforation line having a length in the vertical direction. The pants-type absorbent article according to claim 4,
Both side portions in the left-right direction of the front waistline portion and the rear waistline portion are joined by a pair of joint portions,
The underpants-type absorbent article, wherein the length of the joint portion in the vertical direction is longer than the length of the cut line in a natural state. The pants-type absorbent article according to claim 4 or 5,
The engaging member has an engaging portion that engages with the non-skin side surface of the front waistline portion, and the ventral contact portion of the front waistline portion is separated from the rear waistline portion along the perforation line. in the state of
The underpants-type absorbent article, wherein the engaging portion is located inside the perforation line in the left-right direction. The pants-type absorbent article according to any one of claims 4 to 6,
Before the ventral contact portion of the front waistline is separated from the rear waistline along the cut line,
The engaging member is arranged to cover at least a portion of the perforation line,
The underpants-type absorbent article, wherein the upper end of the perforation line is positioned above the upper end of the engaging member, or the lower end of the perforation line is positioned below the lower end of the engaging member. The pants-type absorbent article according to any one of claims 4 to 7,
The underpants-type absorbent article, wherein, in a natural state, the high-elasticity portion has a length of 10 mm or more from the cut line toward the inner side in the left-right direction. The pants-type absorbent article according to claim 6,
A pants-type absorbent article, wherein a length from the inner end of the engaging portion to the inner end of the engaging member in the left-right direction is 5 mm or more and 50 mm or less. The pants-type absorbent article according to any one of claims 1 to 9,
The pants-type absorbent article has a pair of the engaging members,
the pair of engaging members are respectively joined to the front waist portion on both sides in the left-right direction;
The front waist portion has the high elastic portion in at least a part of each of the overlapping regions on both sides in the left-right direction that overlap the pair of engaging members in a plan view,
A pants-type absorber characterized in that a low-elasticity portion having an elastic modulus smaller than that of the high-elasticity portion is continuously provided between the high-elasticity portions on both sides of the front waist portion in the left-right direction. Goods. The pants-type absorbent article according to claim 10,
The engaging member has an engaging portion that engages with the non-skin side surface of the front waist portion, and in a state where the engaging portion is engaged with the front waist portion and in plan view, the low elastic portion is A pants-type absorbent article characterized by having a portion overlapping at least a part of said engaging portion. The pants-type absorbent article according to any one of claims 1 to 11,
The underpants-type absorbent article, wherein the maximum length of the engaging member in the left-right direction is 20 mm or more and 120 mm or less. The pants-type absorbent article according to any one of claims 1 to 12,
The front waist portion has a cut line having a length in the up-down direction at one end in the left-right direction,
After separating the ventral contact portion of the front waistline portion from the back waistline portion along the perforation line, in a state in which the engaging member is engaged with the non-skin side surface of the front waistline portion,
The underpants-type absorbent article, wherein the engaging member has a protruding portion that protrudes downward in the vertical direction from a lower edge of the front waist portion.

Images