JP2023005913A - Underpants type absorbent article - Google Patents

Abstract

To provide an underpants type absorbent article usable as a tape type one, and usable while excellently keeping a sanitary state even when a wearer wears by himself/herself.SOLUTION: An underpants type absorbent article (1) for adults includes: an absorbent body (10) having an absorbent core (11); a waist member (20) having a front waist part and a rear waist part; and engaging members (30) each having an engaging part (32) engaged detachably with the front waist part (20f). A lowest end of the absorbent core (11) is positioned above a lowest end of the underpants type absorbent article (1) when the underpants type absorbent article (1) is held so that a centerline connecting a center in a width direction of an end at one side in a vertical direction of the engaging part (32) with a center in the width direction of an end at the other side in the vertical direction of the engaging part (32) becomes horizontal.SELECTED DRAWING: Figure 9

Description

The present invention relates to pants-type absorbent articles.

A pants-type absorbent article is known that can be used as a tape type (unfolded type) by cutting off a part of the waist member of the pants-type absorbent article. For example, Patent Literature 1 discloses a pants-type diaper that can be opened in a double-door fashion by providing a pair of fracture guide lines on the ventral side of the exterior body and cutting the exterior body along the fracture guide lines. there is This pants-type diaper is a double-use disposable diaper that can be used as a tape-type diaper by using a fastening tape that is pulled out after opening.

JP 2010-131197 A

In Patent Document 1, a pants-type absorbent article that can be used as a tape type as described above is used for rehabilitation in which elderly people and the like put on pants by themselves by putting on and taking off the pants-type absorbent article while the wearer remains in the form of pants. described as suitable. On the other hand, it is described that a caregiver can easily change diapers by making the pants-type absorbent article tape-shaped.
However, it is also possible for the wearer to wear the pants-type absorbent article, which can also be used as a tape-type, in the form of a tape-type. In that case, the wearer wraps the waist member separated by the tear guide line around one thigh, pulls the separated part of the waist member to the front side of the thigh, and places the fastening tape (engagement member) on the thigh. ) is envisioned. By doing so, the fastening tape can be stably engaged.
However, when the wearer wraps the pants-type absorbent article around one thigh while sitting on the toilet or standing half-assed near the toilet, the pants-type absorbent article hangs down from the thigh. Parts of the article may come into contact with the toilet bowl. As a result, the sanitary condition of the pants-type absorbent article is degraded.

The present invention has been made in view of the above problems, and the object thereof is to provide a tape-type adhesive tape that can be used by the wearer himself/herself to maintain good sanitary conditions. To provide a pants-type absorbent article that can be kept and used.

The main invention for achieving the above object is an absorbent body having a vertical direction, a width direction, and a front-rear direction that intersect each other, and an absorbent body provided with an absorbent core, and an absorbent body disposed overlapping the absorbent body in the front-rear direction. A pants-type absorbent article for adults, comprising: a waist member having a front waist portion and a rear waist portion; and an engaging member having an engaging portion that removably engages the front waist portion, wherein the A center line connecting the widthwise center of one end of the engaging portion in the vertical direction and the widthwise center of the other end of the engaging portion in the vertical direction is horizontal. The bottom end of the absorbent core is located above the bottom end of the pants-type absorbent article when the pants-type absorbent article is held so that It is an absorbent article.
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 can be used while maintaining a good sanitary condition even when the wearer puts it on by himself/herself.

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 26; 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. 4 is a front view of a state in which the napkin 1 is held so that a center line CL11 along the vertical direction of the engaging portion 32 is horizontal. FIG. FIG. 10 is a front view of a state in which a modified napkin 1 is held in the same manner as in FIG. 9;

At least the following matters will become apparent from the descriptions of this specification and the accompanying drawings.
An absorbent main body having a longitudinal direction, a width direction, and a front-rear direction that intersect with each other, and including an absorbent core, and a waistline including a front waistline portion and a rear waistline portion that are arranged to overlap the absorbent main body in the front-rear direction. and an engaging member having an engaging portion that removably engages with the front waist portion, wherein one side of the engaging portion in the longitudinal direction The underpants-type absorbent article is arranged such that a center line connecting the widthwise center of the end and the widthwise center of the other end of the engaging portion in the vertical direction is horizontal. , wherein the lowest end of the absorbent core is positioned above the lowest end of the pants-type absorbent article when the absorbent core is held.

According to such a pants-type absorbent article, when the wearer turns the pants-type absorbent article into a tape shape and wraps the waist member around the thigh, the lowest end of the absorbent core becomes the lowest end of the product. Compared to the case, the absorbent core is less likely to hang down, and contact of the pants-type absorbent article with the toilet bowl can be suppressed. Therefore, the sanitary conditions of the pants-type absorbent article can be maintained in good condition.

The absorbent body has a vertical direction, a width direction, and a front-rear direction that intersect with each other, and includes an absorbent main body including an absorbent core, and a front waistline portion and a rear waistline portion that are arranged to overlap the absorbent main body in the front-rear direction. and an engaging member having an engaging portion that removably engages with the front waist portion, and is folded in two in the front-rear direction at the two-folding portion. the widthwise center of one end of the engaging portion in the longitudinal direction and the widthwise center of the other end of the engaging portion in the longitudinal direction; When the pants-type absorbent article is held so that the center line connecting the two is horizontal, the upper side edge in the width direction of the front absorbent core, and the 2 The vertical length from the horizontal line passing through the point where the folded part intersects to the bottom end of the pants-type absorbent article is the length from the horizontal line to the top end of the pants-type absorbent article. A pants-type absorbent article characterized by being shorter than the length in the vertical direction.

According to such a pants-type absorbent article, when the wearer turns the pants-type absorbent article into a tape shape and wraps the waist member around the thigh, the pants-type absorbent article hangs down from the bottom of the thigh (horizontal line). The length of the absorbent article is shortened, and contact of the pants-type absorbent article with the toilet bowl can be suppressed.

An absorbent main body having a longitudinal direction, a width direction, and a front-rear direction that intersect with each other, and including an absorbent core, and a waistline including a front waistline portion and a rear waistline portion that are arranged to overlap the absorbent main body in the front-rear direction. and an engaging member having an engaging portion that removably engages with the front waistline portion, wherein the absorbent main body on the front side extends from the longitudinal direction. A first center that is the center in the width direction of one end, a second center that is the center in the width direction of a center line that bisects the absorbent main body on the front side in the longitudinal direction, and the longitudinal direction. and a third center that is the center in the width direction of the other end of the engaging portion, and the center in the width direction of the one end in the vertical direction of the engaging portion When the pants-type absorbent article is held so that the center line connecting the other end in the longitudinal direction and the center in the width direction is horizontal, the first center and the second center and a line connecting the second center and the third center has the same inclination with respect to the horizontal direction.

According to such a pants-type absorbent article, the part on the crotch side of the absorbent main body in the vertical direction is less likely to break than the part on the waist side. Therefore, when the wearer turns the pants-type absorbent article into a tape shape and wraps the waist member around the thigh, the absorbent main body (absorbent core) does not easily hang down, and contact of the absorbent main body with the toilet bowl can be suppressed. .

In such a pants-type absorbent article, when viewed from the front side of the pants-type absorbent article held so that the center line is horizontal, a pair of side ends of the absorbent main body in the width direction A pants-type absorbent article characterized in that the skin side surface of the absorbent main body on the rear side is visible below the lower side edge of the absorbent article.

According to such a pants-type absorbent article, after the wearer forms the pants-type absorbent article into a tape shape and wraps the waist member around the thighs, it becomes easier for the wearer to pull up the absorbent main body between the thighs.

In such a pants-type absorbent article, when viewed from the front side of the pants-type absorbent article held so that the center line is horizontal, a pair of side ends of the absorbent main body in the width direction A pants-type absorbent article characterized in that the skin side surface of the absorbent main body on the rear side is visible above the upper side edge of the absorbent article.

According to such a pants-type absorbent article, the back absorbent main body, which is likely to come into contact with the toilet bowl, can be positioned on the upper side, so that the contact of the pants-type absorbent article with the toilet bowl can be further suppressed.

In such a pants-type absorbent article, another engaging member is provided at a position opposite to the engaging member in the width direction, and the pants-type absorbent article is arranged such that the center line is horizontal. 2. A pants-type absorbent article, wherein the engaging portion of said another engaging member is positioned above the lowest end of said pants-type absorbent article when said absorbent article is held.

According to such a pants-type absorbent article, after the wearer turns the pants-type absorbent article into a tape shape and wraps the waist member around the thigh, the engagement member (another engagement member) on the opposite side is attached. is easily visible, the wearer can easily shift to the next action of opening the engaging member on the opposite side and breaking the front waist portion.

In such a pants-type absorbent article, another engaging member is provided at a position opposite to the engaging member in the width direction, and the pants-type absorbent article is arranged such that the center line is horizontal. at least a part of the engaging portion provided by the other engaging member with respect to a vertical line passing through the end of the engaging portion provided on the engaging member on the girth side in the vertical direction when the sexual article is held. is located on the side of the waist.

According to such a pants-type absorbent article, after the wearer turns the pants-type absorbent article into a tape shape and wraps the waist member around the thigh, the engagement member (another engagement member) on the opposite side is attached. is located near the wearer. Therefore, the engaging member on the opposite side is easily visible, and the wearer can easily grasp the engaging member on the opposite side from under the thigh.

The absorbent body has a vertical direction, a width direction, and a front-rear direction that intersect with each other, and includes an absorbent main body including an absorbent core, and a front waistline portion and a rear waistline portion that are arranged to overlap the absorbent main body in the front-rear direction. and an engaging member having an engaging portion that removably engages with the front waistline portion, wherein the absorbent core is disposed in the underpants-type absorbent article for adults. A pants-type absorbent article, characterized in that the volume of a portion of the pants-type absorbent article is 100 cm ³ or more and 250 cm ³ or less.

According to such a pants-type absorbent article, the mass and size of the absorbent core can be reduced, and when the wearer forms the pants-type absorbent article into a tape shape and wraps the waist member around the thigh, , the absorbent core is less likely to sag, and contact of the pants-type absorbent article with the toilet bowl can be suppressed.

Such a pants-type absorbent article, wherein the width of the absorbent core is 50 mm or more and less than 100 mm.

According to such a pants-type absorbent article, it is possible to reduce the volume of the absorbent core while suppressing the leakage of bodily fluids. contact of the pants-type absorbent article with the toilet can be suppressed when the waist member is wrapped around the waist.

In the pants-type absorbent article, wherein the pants-type absorbent article is in an unfolded and stretched state, the thickness of the pants-type absorbent article in the region where the absorbent core is arranged is less than 5.5 mm. A pants-type absorbent article characterized by:

According to such a pants-type absorbent article, the volume of the absorbent core can be reduced. It is possible to suppress the contact of the mold absorbent article with the toilet bowl.

Such a pants-type absorbent article, wherein the absorbent core has a mass of 10 g or more and 40 g or less.

According to such a pants-type absorbent article, it is possible to reduce the volume of the absorbent core while suppressing the leakage of bodily fluids. contact of the pants-type absorbent article with the toilet can be suppressed when the waist member is wrapped around the waist.

In such a pants-type absorbent article, the engaging portion provided in the engaging member is provided at a position outside the absorbent main body on the front side in the width direction, and A pants-type absorbent article characterized by at least one of: being provided at a position closer to the waist in the vertical direction than the main body.

According to such a pants-type absorbent article, the absorbent main body can be prevented from being damaged when the engaging member is removed. In addition, the absorptive main body allows the engaging portion to be engaged with the portion of the front waistline portion where stretchability is not reduced, thereby increasing the engaging strength.

In such a pants-type absorbent article, one engaging member having one engaging portion is provided on one side of the waist member in the width direction, and the other side of the waist member in the width direction is provided with one engaging member having one of the engaging portions. 1. A pants-type absorbent article, characterized in that 1 other engaging member having one engaging portion is provided.

According to such a pants-type absorbent article, the engaging member can be easily engaged with the front waistline portion.

In the pants-type absorbent article, the front waistline portion has a cut line having a length in the vertical direction, and the front waistline portion is not torn in the vertical direction along the cut line. 2. A pants-type absorbent article according to claim 1, wherein the engaging member is visible from the non-skin surface side of the front waist portion.

According to such a pants-type absorbent article, the engagement members are easily recognized by the wearer, and the pants-type absorbent article can be easily used as a tape type.

In such a pants-type absorbent article, the front waist portion has a continuous stretchable region that stretches in the width direction at least in a region where the position in the width direction overlaps with the absorbent main body. pants-type absorbent article.

According to such a pants-type absorbent article, while the front waist portion fits the wearer, when the wearer turns the pants-type absorbent article into a tape shape and wraps the waist member around the thigh, the front side of the absorbent article is It is possible to suppress sagging of the pants-type absorbent article.

In this pants-type absorbent article, both side portions in the width direction of the front waist portion and the rear waist portion are joined by a pair of joint portions, and the rear waist portion A pants-type absorbent article, characterized in that an area between a pair of joints has a continuous elastic area that expands and contracts in the width direction.

According to such a pants-type absorbent article, while the rear waist portion fits the wearer, when the wearer turns the pants-type absorbent article into a tape shape and wraps the waist member around the thighs, the rear side sagging of the pants-type absorbent article can be suppressed.

In such a pants-type absorbent article, the length from one end of the pants-type absorbent article to the center in the longitudinal direction is 200 mm or more and 350 mm or less. A pants-type absorbent article characterized by:

According to such a pants-type absorbent article, while the size is adjusted according to the body of an adult wearer, when the wearer makes the pants-type absorbent article into a tape shape and wraps the waist member around the thigh, It is possible to suppress sagging of the pants-type absorbent article.

Such a pants-type absorbent article is characterized in that the absorbent main body has an absorbent elastic member that expands and contracts along the longitudinal direction of the absorbent main body.

According to such a pants-type absorbent article, while the absorbent main body is fitted to the wearer's crotch, when the wearer turns the pants-type absorbent article into a tape shape and wraps the waist member around the thigh. , the contact of the absorbent body with the toilet bowl can be suppressed.

In such a pants-type absorbent article, the pants-type absorbent article has an extension member extending from at least one of the front waistline portion and the rear waistline portion toward the crotch side in the vertical direction, The underpants-type absorbent article, wherein the extending member has a stretchable region that stretches in the width direction.

According to such a pants-type absorbent article, when the wearer puts the pants-type absorbent article into a tape shape and wraps the waist member around the thigh, the contact of the extending member with the toilet bowl can be further suppressed.

In this pants-type absorbent article, the back waist portion has a non-skin side sheet forming the non-skin side, and the waist side end of the non-skin side sheet in the longitudinal direction is the skin side. A pants-type absorbent article, characterized in that the absorbent body is folded back over the body and covers the longitudinal end of the absorbent body from the skin side.

According to such a pants-type absorbent article, since the rigidity of the end of the back waist portion on the waistline side is increased, when the wearer forms the pants-type absorbent article into a tape shape and wraps the waist member around the thigh, In addition, sagging of the rear pants-type absorbent article can be suppressed.

In such a pants-type absorbent article, the absorbent main body has a region in which the absorbent core does not exist on the side portion in the width direction.

According to such a pants-type absorbent article, the rigidity of the side portion of the absorbent main body is low. It becomes easier to rotate the waist member along the circumferential direction of the thigh.

In such a pants-type absorbent article, at least one of the front waistline portion and the rear waistline portion has a stretchable region that stretches in the width direction, and the absorbent main body includes, at the side portions in the width direction, The absorbent main body has side elastic members that expand and contract along the longitudinal direction, and the stress in the width direction in the elastic region of at least one of the front waist portion and the rear waist portion is generated by the side elastic member. A pants-type absorbent article, wherein the stress in the longitudinal direction is greater than the stress in the region where the

According to such a pants-type absorbent article, while the waist member is fitted to the wearer, when the wearer turns the pants-type absorbent article into a tape shape and wraps the waist member around the thighs, the pants-type absorption It is possible to suppress the sagging of the functional article. In addition, since the side portions of the absorber are difficult to stretch, the wearer can easily rotate the waist member along the circumferential direction of the thigh after wrapping the waist member around the thigh.

===this embodiment===
As an example of the pants-type absorbent article according to the present embodiment, a pants-type (shorts-type) napkin 1 (hereinafter also referred to as a napkin 1) will be described. The pants-type absorbent article also includes pants-type diapers, pants-type absorbent pads, and the like.

<<<basic structure of napkin 1>>>
FIG. 1 is a schematic perspective view of the 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 line AA of FIG.

As shown in FIG. 1, the napkin 1 has a "longitudinal direction", a "width direction", and a "front-rear 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 vertical direction, the upper side of the wearer when the napkin 1 is worn by the wearer is defined as the "girth side", and the lower side of the wearer is defined as the "crotch 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 this embodiment has an absorbent body 10 that absorbs excretory fluid such as menstrual blood, and an absorbent body 10 that overlaps the absorbent body 10 in the front-rear direction (in this embodiment, the absorbent body 10 is placed on the non-skin side of the absorbent body 10). and a pair of tabs 30 provided on both sides of the waist member 20 in the width 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 sides in the width direction of the napkin 1 are separated and the napkin 1 is opened and unfolded in a plane. In other words, from the unfolded state shown in FIG. 2, the napkin 1 is folded in half in the longitudinal direction at the central position CL (half-folded portion F) in the longitudinal direction, and the front waist portion 20f and the rear waist portion 20b are folded in the width direction. Both sides are joined at a pair of side joints 40 (joints) 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 is a state in which the elastic members of the napkin 1 are stretched to such an extent that wrinkles of the napkin 1 become invisible. Specifically, the dimensions of each member constituting the napkin 1 are the dimensions of the member itself (that is, the dimension of the elastic member in a state in which the elastic characteristics are not expressed), and are stretched until they are the same or close to the dimensions. be. In this embodiment, when measuring and comparing the length of the main body of the napkin 1, the tab 30 is disengaged (or the tab 30 is peeled off), and the cut line 26 is measured. It is preferable to measure and compare in a state before the waist member 20 is broken.

(Absorptive main body 10)
As shown in FIG. 2, the absorbent main body 10 is a member having a rectangular shape in plan view, the longitudinal direction of which extends along the longitudinal direction of the napkin 1 . As shown in FIG. 3, the absorbent main body 10 includes an absorbent core 11, a top sheet 12 arranged on the skin side of the absorbent core 11, and a non-skin side of the absorbent core 11. and a back sheet 13 . 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 outer peripheral surface of 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, the absorbent body 10 has, on both sides in the width direction, leak-proof walls 14 that can stand up on the skin side. For example, both sides of the hydrophobic sheet 13b in the width direction are folded back inward in the width direction so as to be positioned on the skin side surface of the top sheet 12, and the folded portions are provided with leakproof wall elasticity that expands and contracts in the longitudinal direction. The leak-proof wall portion 14 is formed by providing the member 141 (for example, rubber thread). The leak-proof wall portion 14 can suppress lateral leakage of the excreted liquid. However, the absorbent main body 10 may not be provided with the leak-proof wall portion 14 .

(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). In the following description, when the napkin 1 ( FIG. 2 ) in the unfolded state is divided into two at the longitudinal central position CL, the longitudinal position of the front waist member 20 overlaps with the side joint portion 40 . It is called the "front waist portion 20f", and the portion below it (on the crotch side) is called the "front side extending portion 20fe". Similarly, of the waist member 20 on the rear side of the central position CL, the portion that overlaps the side joint portion 40 in the vertical direction is called a “rear waist portion 20b”, and the portion below it is called a “rear waist portion 20b”. side extension portion 20be”.

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 width direction at the central portion in the longitudinal direction.

The skin-side sheets 22 and 23 are stretchable sheet members laminated on the skin side of the non-skin-side sheet 21 on the front and rear sides of the waist member 20 . The skin-side sheets 22 and 23 have elasticity at least in the width direction of the napkin 1 . Stretchable sheet members include stretchable nonwoven fabrics and stretchable films, and the skin-side sheets 22 and 23 of this embodiment are made of stretchable nonwoven fabrics.

The stretchable nonwoven fabric is a stretchable nonwoven fabric that contains stretchable fibers and stretchable fibers that are less shrinkable than the stretchable fibers and that has been subjected to an appropriate stretching treatment such as gear stretching. As the stretchable fiber, it is possible to use a polyurethane elastomer fiber, which is a type of thermoplastic elastomer having elasticity. It is possible to use fibers of polypropylene (PP).

The non-skin-side sheet 21 and the skin-side sheets 22 and 23 are intermittently joined by scattered joining portions (not shown) (joining portions by thermal welding, ultrasonic welding, or the like). Therefore, the parts of the waist member 20 where the skin-side sheets 22 and 23 are arranged are imparted with stretchability along the width direction. Further, when the waist member 20 contracts, the non-skin side sheet 21 bends (has a convex shape) between the joints, and the feel of the waist member 20 is improved, giving a visually soft impression.

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. good. 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 width 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 widthwise outer edge of the base sheet 31 is joined to the waist member 20 by 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 the end portion of the base sheet 31 opposite to the side joined by the side joint portion 40 in the width 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.

<<<About the wearability of the 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 tear line 26. 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 26 having a length in the vertical direction at both ends in the width direction. Therefore, the front waistline portion 20f can be longitudinally broken along the perforation line 26 to separate a portion 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 width 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 separated from the rear waistline portion 20b on at least one side in the width direction will also be referred to as the "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. FIG. 8 is a front view of the underpants-type napkin 1 viewed from the front side. FIG. 9 is a front view of a state in which the napkin 1 is held so that the longitudinal center line CL1 of the engaging portion 32 is horizontal. FIG. 10 is a front view of a modified napkin 1 held in the same manner as in 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 width direction of the pants-type napkin 1 to the outside (one side) in the width direction to expose the perforation line 26 . Next, as shown in FIG. 6B, the wearer vertically tears one widthwise end of the front waist portion 20f along the perforation line 26, and cuts 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 addition, FIG. 7B is a diagram showing the inside of the thigh around which the napkin 1 is wrapped as in FIG. 7A.

7A and 7B, 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. Then, as shown in FIG. 7C, the side joints 40 are aligned with one's armpits and the absorbent body 10 is pulled up between the thighs.

Next, the wearer opens the tab 30 on the opposite side to the outside in the width direction to separate the front waistline portion 20f from the rear waistline portion 20b on the other side as well. 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 26 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 .

Thus, the napkin 1 of this embodiment has a tab 30 that removably engages the front waistline portion 20f. Therefore, when the wearer uses the napkin 1 in a tape shape, the wearer can engage the tab 30 with the front waist portion 20f while visually recognizing the tab 30 on the front side of the wearer. 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, in the napkin 1 of the present embodiment, the tab 30 is provided on the non-skin side (outside) of the waist member 20, and the engaging portion 32 provided on the skin side surface of the tab 30 is attached to the non-skin side of the front waist portion 20f. Engage the sides. However, it is not limited to this, and the tab 30 is provided on the skin side (inner side) of the waist member 20, and after the waist member 20 is separated, the engaging portion 32 provided on the non-skin side of the tab 30 is attached to the front. It may be in a form that engages with the skin side surface of the waist portion 20f.

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 20f along the cutting line 26. 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 .

Moreover, like the napkin 1 of this embodiment, the front waist portion 20f preferably has a perforation line 26 (for example, a perforation) having a length in the vertical direction at the end portion in the width direction. By doing so, the wearer can easily tear the front waist portion 20f.

Although the perforation line 26 of the present embodiment is provided in the entire longitudinal direction of the front waistline portion 20f, the perforation line 26 may be provided only in a part of the front waistline portion 20f in the longitudinal direction. Moreover, the perforation line 26 is not limited to a linear shape along the vertical direction as shown in the stretched napkin 1 (FIG. 2), but may be a straight line or curved line inclined with respect to the vertical direction. Also, the perforation line 26 may be any line that can easily tear the front waistline portion 20f in the vertical direction, such as a notch provided at the end of the front waistline portion 20f on the waistline side or the end on the crotch side. good too.

However, the napkin 1 does not have to have the perforation line 26 . Even in this case, the side joints 40 are formed by welding or the like, and have higher rigidity than other regions of the waist member 20 . Therefore, the wearer can tear the front waist portion 20 f along the widthwise inner edge 40 a of the side joint portion 40 .

Moreover, it is preferable that the tab 30 is visible from the non-skin surface side (outside) of the napkin 1 in the initial state when the napkin 1 is taken out of the package. For example, when the front waistline portion 20f has the perforation line 26, as in the napkin 1 of the present embodiment, the front waistline portion 20f is not torn in the vertical direction along the perforation line 26. It is preferable that the tab 30 is visible from the non-skin side.

By doing so, it becomes easier for the wearer to recognize that the napkin 1 can be used as either a pants type or a tape type. Therefore, the wearer of the napkin 1 can put on and take off the napkin 1 as it is in a pants shape or in a tape shape according to the situation at that time, and the easiness of putting on and taking off the napkin 1 is improved. .

Also, when the wearer wears the napkin 1 in a tape shape by himself, as shown in FIGS. Methods of engaging tab 30 are envisioned. By doing so, the tab 30 (engaging portion 32) can be stably engaged with the front waist portion 20f.

However, when the wearer is sitting on the toilet or standing half-assed near the toilet and the napkin 1 is wrapped around one thigh, the napkin 1 tends to hang down as shown in FIG. 7B. In particular, the absorbent core 11, which accounts for most of the weight of the napkin 1, tends to hang down from the thighs. If the portion of the napkin 1 hanging down from the thigh comes into contact with the toilet bowl, the sanitary condition of the napkin 1 to be worn from now on will be deteriorated.

Therefore, in the napkin 1 of the present embodiment, the center 32a in the width direction of the end of the engagement portion 32 provided in the tab 30 on the waist side (one side) in the vertical direction and the crotch side (the other side) in the vertical direction of the engagement portion 32 When the napkin 1 is held so that the center line CL1 (see FIGS. 5 and 8) connecting the center 32b in the width direction of the edge of the side) is horizontal (FIG. 9), the maximum of the absorbent core 11 The bottom end 11L is positioned above the bottom end 1L of the napkin 1 (product).

In a state in which the napkin 1 is wrapped around the thigh as shown in FIG. can be said that the absorbent core 11 does not hang down as compared with the case where the lowest end of the absorbent core 11 becomes the lowest end of the product. Therefore, when the waist member 20 is wrapped around the thigh (FIG. 7B), the contact of the napkin 1 with the toilet bowl can be suppressed.

As a result, the sanitary condition of the napkin 1 can be kept good. In addition, since the napkin 1 is less likely to come into contact with the toilet bowl, the wearer can concentrate on the operation of wrapping the waist member 20 around the thigh, and the wearability of the napkin 1 is improved. Further, after engaging the tab 30 with the front waist portion 20f, the wearer rotates the napkin 1 along the circumferential direction of the thigh, and as shown in FIG. 7C, the absorbent core 11 (absorbent main body 10). Pull it up between your thighs. Therefore, since the absorbent core 11 is less likely to hang down, the operation of pulling up the absorbent core 11 is facilitated.

The pant-shaped napkin 1 in which the waist member 20 is not separated by the perforation line 26 or the like is held and observed as shown in FIG. Further, the napkin 1 is held so that the center line CL1 of the engaging portion 32 of the tab 30 in the initial state taken out of the package is horizontal. The napkin 1 of this embodiment is in the initial state shown in FIG. 8 when it is taken out of the package. Therefore, the tab 30 is engaged with the front waistline portion 20f in a state of being expanded inward in the width direction from the position (side joint portion 40) where the tab 30 is joined to the waistline member 20, and the engagement at the position of the tab 30 is prevented. The napkin 1 is held so that the center line CL1 of the joining portion 32 is horizontal. On the other hand, if the initial state taken out of the package is not the state shown in FIG. The napkin 1 is held so that CL1 (the center line CL1 of the folded engaging portion 32 when the engaging portion 32 is also folded) is horizontal.

In addition, in order to hold the napkin 1 so that the center line CL1 of the engaging portion 32 is horizontal, a metal ruler conforming to JIS Class 1 (for example, a straight silver ruler manufactured by Shinwa Measurement Co., Ltd. (length 335 mm or 500 mm, width 25 mm, 1 mm thick), or equivalent). Specifically, first, the plane of the ruler 51 is aligned with the horizontal surface of the workbench 50, and the ruler 51 is protruded from the workbench 50 by 200 mm. Next, the ruler 51 is passed through the leg opening 1b and the waist opening 1a of the napkin 1 . Then, the open end of the waistline of the napkin 1 is aligned with the position 50 mm inside (on the workbench 50 side) from the protruding end of the ruler 51 . Also, the vertical center line CL1 of the engaging portion 32 of the napkin 1 is aligned with the central position of the width (25 mm) of the ruler 51 . Then, observe the state of the napkin 1 hanging from the ruler 51 (for example, compare the position of the lowest end of the absorbent core 11 and the napkin 1). Note that it is preferable to fix the work table 50 and the ruler 51 or the ruler 51 and the napkin 1 using double-sided tape or the like. Also, if the ruler 51 bends due to the weight of the pants-type absorbent article, two or three rulers 51 may be stacked in the thickness direction to hold the pants-type absorbent article. Alternatively, the length of the ruler 51 protruding from the workbench 50 may be shortened. The following measurements and comparisons shall be made in the same manner. Further, the measurement and comparison of the napkin 1 in the state of FIG. 9 may be performed with the actual napkin 1, or may be performed based on the image of the napkin 1 in the state of FIG. 9 photographed from the front side.

In addition, in the following description, the portion of the absorbent core 11 located on the front side of the two-folded portion F (end of the crotch side in the longitudinal direction) of the napkin 1 is also referred to as the “front-side absorbent core 11F”, and the two-folded portion The portion of the absorbent core 11 located on the rear side of F is also referred to as "the rear absorbent core 11B". Similarly, the portion of the absorbent body 10 located on the front side of the two-folded portion F of the napkin 1 is also referred to as the "front-side absorbent body 10F", and the portion of the absorbent body 10 located on the rear side of the two-folded portion F. The part is also called "back absorbent main body 10B".

Further, in the napkin 1 of the present embodiment, when the napkin 1 is held so that the center line CL1 of the engaging portion 32 is horizontal (FIG. 9), the following conditions are assumed. First, a horizontal line LH (a horizontal line in the vertical direction) passing through a point P1 where the upper side end 11SU of the width direction side ends of the front absorbent core 11F and the two-folded portion F of the napkin 1 intersect. location). The vertical (vertical) length L4 from the horizontal line LH to the lowermost edge 1L of the napkin 1 is the vertical length from the horizontal line LH to the uppermost edge 1U of the napkin (that is, the upper surface of the ruler 51). shorter than L3.

The position of the horizontal line LH generally corresponds to the position of the lower surface of the thigh around which the waist member 20 is wrapped. Therefore, by shortening the vertical length L4 from the horizontal line LH to the lowermost end 1L of the napkin 1 as described above, it is possible to reduce the hanging amount of the napkin 1 when the waist member 20 is wrapped around the thigh. . Specifically, in the napkin 1 held as shown in FIG. 9, the length L4 can be shortened compared to the absorbent article in which the lowest end of the absorbent core is the lowest end of the product, and the waist member 20 is attached to the thigh. can reduce the hanging amount of the napkin 1 when it is wound. Therefore, the contact of the napkin 1 with the toilet bowl can be suppressed.

In addition, the following methods are mentioned as a measuring method of said length L3, L4. First, the front non-skin side of the napkin 1 in the natural state shown in FIG. 8 (for example, the napkin 1 in an unloaded state laid flat on a horizontal table) is marked with a pen. That is, the position of the intersection point P1 between the folded portion F of the napkin 1 and the side end 11SU of the absorbent core 11 on the side where the engaging portion 32 is held horizontally is marked. Next, a horizontal line LH passing through the intersection point P1 is marked on the napkin 1 in the state of FIG. 9 with a pen. Then, lengths L3 and L4 from the horizontal line LH to the top end 1U and the bottom end 1L of the napkin 1 are measured with a ruler or the like. Alternatively, the horizontal line LH may be specified on the image data obtained by photographing the napkin 1 in the state of FIG. 9 from the front side, and the lengths L3 and L4 may be compared.

In addition, in the napkin 1 (FIG. 8) in the natural state, the front absorbent main body 10F has a first center C1, which is the center in the width direction of the end of the longitudinal waistline side (one side), and the front absorbent main body. It has a second center C2 that is the center in the width direction of the center line that bisects 10F in the lengthwise direction, and a third center C3 that is the center in the width direction of the end on the crotch side (the other side) in the lengthwise direction.

In the napkin 1 of the present embodiment, when the napkin 1 is held so that the center line CL1 of the engaging portion 32 is horizontal ( FIG. 9 ), the horizontal direction of the line La connecting the first center C1 and the second center C2 and the inclination of the line Lb connecting the second center C2 and the third center C3 with respect to the horizontal direction. It should be noted that the line La and the line Lb having the same slope with respect to the horizontal direction only need to be substantially the same, and even if there is an error in the slope of about 0 to 5 degrees or less, it is the same.

The fact that the line La and the line Lb have the same inclination with respect to the horizontal direction and that the line La and the line Lb are located on the same line means that the portion on the waist side in the vertical direction of the absorbent body 10 (the portion in the range of C1 to C2 ), the part on the crotch side (the part in the range of C2 to C3) is not inclined. In other words, even when the napkin 1 is in the state shown in FIG. 9, the absorbent main body 10 does not fold in the middle of the vertical direction, and the crotch side portion of the absorbent main body 10 does not hang down. Therefore, when the waist member 20 is wrapped around the thigh, the contact of the napkin 1 with the toilet bowl can be suppressed.

In addition, the following method is mentioned as a confirmation method of the inclination of the line La and the line Lb. First, positions of the first center C1 to the third center C3 are marked with a pen on the front non-skin side of the napkin 1 in the natural state shown in FIG. Next, a line La connecting the first center C1 and the second center C2 and a line Lb connecting the second center C2 and the third center C3 are marked with a pen on the napkin 1 in the state of FIG. Then, the inclination of the lines La and Lb with respect to the horizontal direction is confirmed using a ruler or the like. Alternatively, on the image data obtained by photographing the napkin 1 in the state of FIG. 9 from the front side, the line La and the line Lb may be specified and the inclinations thereof may be compared.

When the napkin 1 held so that the center line CL1 of the engaging portion 32 is horizontal is viewed from the front side, as shown in FIG. It is preferable that the skin side surface of the absorbent body 10 on the rear side is visible below the lower side end 10SL (that is, from the leg opening 1b on the lower side). For example, the tab 30 is engaged with the widthwise inner position of the front waistline portion 20f, or the widthwise stretchability of the rear waistline portion 20b is reduced.

By doing so, when the waist member 20 is wrapped around the thigh, the absorbent body 10F on the front side is positioned on the upper side, so that the napkin 1 is rotated along the circumferential direction of the thigh and between the thighs. The operation of pulling up the absorbent main body 10 is facilitated. In other words, the amount that the wearer pulls up by holding both sides of the front absorbent main body 10F in the width direction is reduced, making it easier to move to the next operation.

However, contrary to FIG. 9, as shown in the modified example of FIG. 10, when the napkin 1 held so that the center line CL1 of the engaging portion 32 is horizontal is viewed from the front side, the absorption in the width direction The skin side of the absorbent main body 10B on the rear side may be visible above the upper side end 10SU of the pair of side edges of the absorbent main body 10 (that is, from the upper leg opening 1b). . For example, the tab 30 is engaged with the widthwise outer position of the front waistline portion 20f, or the widthwise stretchability of the rear waistline portion 20b is increased.

When the waist member 20 is wrapped around the thighs, the rear part of the napkin 1 is likely to be positioned closer to the toilet than the front part, and is wrapped under the thighs. Therefore, by locating the rear absorbent main body 10B on the upper side as described above, the contact of the rear portion of the napkin 1 with the toilet bowl can be further suppressed.

Also, in the case of FIG. 10, the inclination of the front absorbent main body 10F with respect to the horizontal direction is smaller than in the case of FIG. Therefore, when the wearer pulls up the front absorbent main body 10F between the thighs (Fig. 7C), the inclination of the front absorbent main body 10F with respect to the direction in which the thigh extends is small, and the front absorbent main body 10F is pulled up. Alignment operation is facilitated.

Furthermore, when the napkin 1 is held so that the center line CL1 of the engaging portion 32 is horizontal (FIG. 9), the engaging portion 32 (32A) is provided at the opposite side in the width direction. The engaging portion 32 (32B) of the lower tab 30 (another engaging member) is preferably located above the lowermost end 1L of the napkin 1. As shown in FIG.

By doing so, when the wearer wraps the waist member 20 around the thigh, the tab 30 (engagement portion 32B) on the opposite side is easily visible from between the thighs. Therefore, the wearer is more likely to be conscious of the action of opening and breaking the tab 30 on the opposite side next, so that the wearer can easily move to the next action.

In addition, when the napkin 1 is held so that the center line CL1 of the engaging portion 32 is horizontal (FIG. 9), a vertical line LV passing through the end 32Aa of the engaging portion 32 (32A) on the waist side in the vertical direction On the other hand, at least a portion of the engaging portion 32 (32B) of the lower tab 30 is preferably located on the waist circumference side.

By doing so, when the wearer wraps the waist member 20 around the thigh, the tab 30 (engagement portion 32B) on the opposite side is located near the wearer. Therefore, the wearer can find the tab 30 (engagement portion 32B) on the opposite side by simply looking down without bending forward, and can easily move to the next operation.

Further, in the method of wearing the napkin 1 described above, after the waist member 20 is wrapped around the thigh, the napkin 1 is pulled up as shown in FIG. Although the method of breaking has been described, it is not limited to this. For example, as shown in FIG. 7B, tab 30 may be grasped from under the opposite thigh and tab 30 may be opened under the thigh to break front waistline 20f. In that case, the torn portion of the front waist portion 20f can be wrapped around the thigh from below as it is. In this case, as described above, the tab 30 (engagement portion 32B) on the opposite side is positioned near the wearer, making it easier for the wearer to grasp the tab 30 from below the thigh.

Further, the napkin 1 of the present embodiment is a pants-type absorbent article for adults (including elementary and junior high school students who have reached menarche), but the volume of the absorbent core 11 is relatively small. Strictly speaking, the volume of the portion of the napkin 1 where the absorbent core 11 is arranged is relatively small, and is set to 100 cm ³ or more and 250 cm ³ or less.

The volume of the portion of the napkin 1 where the absorbent core 11 is arranged includes the "longitudinal length of the absorbent core 11", the "width of the absorbent core 11", and the "width of the absorbent core 11". It can be obtained by multiplying the thickness of the part of the napkin 1 that is attached (the thickness from the top sheet 11 to the non-skin side sheet 21 in FIG. 3). However, the thickness of the sheet overlaid on the absorbent core 11 is smaller than the thickness of the absorbent core 11 . Therefore, the volume of the portion of the napkin 1 where the absorbent core 11 is arranged is close to the volume of the absorbent core 11, so in this specification, the volume of the portion of the napkin 1 where the absorbent core 11 is arranged is , simply referred to as "the volume of the absorbent core 11".

By reducing the volume of the absorbent core 11 to 250 cm ³ or less, the mass and dimensions (length, width, thickness, etc.) of the absorbent core 11 can be reduced. Therefore, when the wearer wraps the waist member 20 around the thighs in order to wear the napkin 1 in a tape shape, the absorbent core 11, which occupies most of the mass of the napkin 1, does not easily hang down, and the toilet bowl of the napkin 1. can suppress contact with Therefore, the sanitary condition of the napkin 1 can be maintained well, and the wearability is also improved. In addition, in the case of an adult pants-type absorbent article for a wearer who wears it by himself (for example, the napkin 1 of the present embodiment, a diaper for light incontinence, etc.), compared to a nursing pants-type absorbent article , low excretion. Therefore, even if the volume of the absorbent core 11 is 100 cm ³ or more and 250 cm ³ or less, the leakage of excrement can be suppressed.

Specifically, the width of the absorbent core 11 is preferably 50 mm or more and less than 100 mm. By setting the width of the absorbent core 11 to less than 100 mm, the volume of the absorbent core 11 can be reduced as described above. In addition, the lowermost position 11L (see FIG. 10) of the absorbent core 11 can be positioned upward when the waist member 20 is wrapped around the thigh. Therefore, the contact of the napkin 1 with the toilet bowl can be suppressed. On the other hand, by setting the width of the absorbent core 11 to 50 mm or more, it is possible to provide the wearer with a sense of security and to suppress lateral leakage of excrement.

In addition, in the pants-type absorbent article in the unfolded and stretched state, the thickness of the napkin 1 at the portion where the absorbent core 11 is arranged, that is, the thickness of the absorbent core 11 and the sheet arranged to overlap the absorbent core 11 A total thickness of less than 5.5 mm is preferred. However, as with the volume of the absorbent core 11, the thickness of the sheet superimposed on the absorbent core 11 is smaller than the thickness of the absorbent core 11. The thickness of the napkin 1 is also simply referred to as "the thickness of the absorbent core 11".

By setting the thickness of the absorbent core 11 to be less than 5.5 mm, the volume of the absorbent core 11 can be reduced as described above, and the bulging of the napkin 1 in the front-rear direction can be suppressed. can suppress contact with

Moreover, it is preferable that the mass of the absorbent core 11 is 10 g or more and 40 g or less. By setting the mass of the absorbent core 11 to 40 g or less, it is possible to suppress the absorbent core 11 from sagging when the waist member 20 is wrapped around the thigh, and to suppress the contact of the napkin 1 with the toilet bowl. On the other hand, by setting the mass of the absorbent core 11 to 10 g or more, leakage of excrement can be suppressed.

Methods for measuring the volume, width, thickness and mass of the absorbent core 11 will be described below.
(1) The maximum length in the longitudinal direction (vertical direction of the napkin 1) in the state where the absorbent core 11 is spread out on a plane, with the napkin 1 unfolded and stretched to the extent that there are no wrinkles as shown in FIG. to measure.
(2) Next, the absorbent core 11 is longitudinally divided into three regions R1 to R3 (see FIG. 5). Then, the widths W1 to W3 of the absorbent core 11 are measured at the longitudinal central positions of the regions R1 to R3. The width W of the absorbent core 11 is defined as the average value of the three widths W1 to W3. The width W is preferably 50 mm or more and less than 100 mm.
(3) Next, the thicknesses t1 to t3 of the absorbent core 11 are measured at the respective centers (centers in the longitudinal and width directions) of regions R1 to R3 obtained by dividing the absorbent core 11 into three in the longitudinal direction. The average value of the three thicknesses t1 to t3 is defined as the thickness t of the absorbent core 11 (the thickness of the napkin 1 at the portion where the absorbent core 11 is arranged). Its thickness t is preferably less than 5.5 mm.
(4) Then, a value obtained by multiplying the length of the absorbent core 11 by the width W and the thickness t is defined as the volume of the absorbent core 11 (the volume of the portion of the napkin 1 where the absorbent core 11 is arranged). Its volume is preferably 100 cm ³ or more and 250 cm ³ or less.
(5) Measurement of mass is performed after measuring the above dimensions. First, the material constituting the napkin 1 is separated using toluene, and the absorbent core 11 (including the core wrap sheet) is taken out. After air-drying the separated absorbent core 11 for 24 hours, the mass of the absorbent core 11 (pulp fiber, SAP, core wrap sheet, etc.) is measured. It is preferable that the mass is 10 g or more and 40 g or less.

Moreover, in order to suppress sagging of the absorbent core 11, it is preferable that the thickness of the side edges in the width direction of the absorbent core 11 in the two-folded portion F of the napkin 1 is particularly thin. Specifically, the thickness of the side edges in the width direction of the two-fold portion F of the absorbent core 11 is greater than the thickness of the absorbent core 11 measured by the above measuring method (that is, the thickness of the central portion in the width direction). It should be thin, 4 mm or less. In addition, the thickness of the side edge of the absorbent core 11 is measured by the same method as the above-described measuring method while changing the measuring point. The thickness of each napkin 1 is measured at two points (left and right side edges), and the average value is taken as the thickness of the side edge of the absorbent core 11 .

The thickness of the absorbent core 11 is measured by using, for example, a dial thickness gauge ID-C1012C manufactured by Mitutoyo Co., Ltd. or its equivalent, and applying pressure to the target site at, for example, 3.0 gf/cm ² . value.

In addition, it is preferable to measure the volume, width, thickness, and mass of the absorbent core 11 for a plurality of (eg, five) napkins 1 and confirm that the average value is within the above range. The napkins 1 to be measured are preferably napkins contained in the same package, but may be napkins contained in the same cardboard or napkins having the same production date.

As shown in FIG. 2, in the napkin 1 in the unfolded and stretched state, one end of the napkin 1 in the longitudinal direction (the direction orthogonal to the width direction and along the longitudinal direction of the absorbent body 10) to the center CL is preferably 200 mm or more and 350 mm or less. By setting the length L6 to 350 mm or less, the length of the portion of the napkin 1 extending from the waist member 20 to the crotch side is appropriately reduced, so that the napkin 1 does not easily hang down when the waist member 20 is wrapped around the thigh. Contact of the napkin 1 with the toilet bowl can be suppressed. On the other hand, setting the length L6 to 200 mm or more provides a size that fits an adult.

Further, as shown in FIG. 2, the width of the absorbent core 11 is narrower than the width of the absorbent main body 10, and the absorbent main body 10 has a region in which the absorbent core 11 does not exist at the side portion in the width direction. is preferred.

By doing so, the lateral sides of the absorbent body 10 in the width direction are less rigid. Therefore, after the waist member 20 is wrapped around the thighs, when the wearer rotates the waist member 20 and pulls up the absorbent main body 10, the side portions of the absorbent main body 10 extend along the circumferential direction of the wearer's thighs. This makes it easier to rotate the waist member 20. Therefore, the wearability of the napkin 1 is improved.

Moreover, like the napkin 1 of this embodiment, it is preferable that a pair of tabs 30 are provided on both sides of the waist member 20 in the width direction. By doing so, as shown in FIG. 6C and FIG. 7D, the napkin 1 can be worn by wrapping the waist member 20 around both thighs. When removing the napkin 1, the pair of tabs 30 are removed from the front waist portion 20f, and the napkin 1 can be pulled out from between the thighs. Therefore, unlike the case of putting on and taking off the napkin 1 in the form of pants, it is not necessary to pass the toe through the opening 1b around the leg of the napkin 1 to put on and take off. Therefore, the wearer can put on and take off the napkin 1 without taking off pants, shoes, stockings, etc., and can easily replace the napkin 1 on the go.

In addition, like the napkin 1 of the present embodiment, one tab 30 (engaging member) having one engaging portion 32 is provided on one side in the width direction of the waist member 20, and the width direction of the waist member 20 Preferably, one tab 30 (another engaging member) having one engaging portion 32 is provided on the other side of the . That is, it is preferable that one tab 30 is provided on each side of the napkin 1 in the width direction.

By doing so, the wearer only needs to engage the tabs 30 (engaging portions 32) once on both sides in the width direction, and the wearer can easily wear it. The appearance of the napkin 1 is also improved. Further, in the case of a pants-type absorbent article intended for a wearer who puts it on by himself like the napkin 1 of this embodiment, the amount of excretion is small, and the absorbent core 11 after excretion is also light. Therefore, in the napkin 1 of the present embodiment, for example, a tab having two engaging portions arranged in the vertical direction is provided like a pants-type absorbent article for nursing care, or a tab having one engaging portion is provided in the vertical direction. Even if two tabs are arranged side by side and the tabs are not firmly fixed to the front waist part 20f, the napkin 1 is less likely to slip off.

However, the number of engaging portions 32 and tabs 30 is not limited to one on both sides in the width direction. Alternatively, the napkin 1 may have the tab 30 only on one side of the waist member 20 in the width direction. In other words, the napkin 1 of the present embodiment may be a pants-type absorbent article that can be used as a tape type at least on one side in the width direction.

The front waist portion 20f and the rear waist portion 20b have skin-side sheets 22 and 23 that stretch in the width direction, and waist elastic members 24 that stretch in the width direction ( For example, it has a plurality of thread rubbers). As shown in FIGS. 2 and 5, the front waistline portion 20f and the rear waistline portion 20b have a continuous elastic region 20EA that stretches in the width direction at least in the region where the position in the width direction overlaps with the absorbent main body 10. is preferred.

By doing so, 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 width direction to fit the waist of the wearer.

Further, when the wearer wraps the waist member 20 around the thigh, the abdominal contact portion 20fA is easily pulled toward the front of the thigh, and the tab 30 is engaged with the abdominal contact portion 20fA on the thigh. easier to do. The skin-side sheets 22 and 23 and the waist elastic member 24 cause the front waist portion 20f and the rear waist portion 20b to contract in the width direction (to fit around the thighs), so that the napkin 1 does not easily hang down. Therefore, the contact of the napkin 1 with the toilet bowl can be suppressed.

However, in the elastic area 20EA, in the area overlapping the absorbent core 11 in the thickness direction, the elastic force may be reduced to ensure the flatness of the absorbent core 11 . For example, in the region overlapping the absorbent core 11 in the thickness direction, the area ratio of the joints (welded portions) between the non-skin-side sheet 21 and the skin-side sheets 22 and 23 is increased compared to the other regions, thereby It is preferable to suppress the elastic properties of the side sheets 22 and 23 . By doing so, it is possible to secure the absorbent area of the absorbent core 11 and prevent the occurrence of a gap between the absorbent core 11 and the wearer.

In addition, the front waist portion 20f preferably has a low stretchable region 20NA having a lower stretchability than the stretchable region 20EA outside the stretchable region 20EA in the width direction (on the side where the tab 30 is provided). With the provision of the low-stretch region 20NA, when the wearer pulls the front waistline portion 20f in the width direction to break it, the force is efficiently transmitted to the breaking portion, and the front waistline portion 20f can be broken with a small force. When the napkin 1 has a perforation line 26, the perforation line 26 is preferably arranged between both side ends of the low stretchable region 20NA in the width direction. By doing so, it is difficult to stretch both outer sides of the perforated line 26, so that the front waistline portion 20f is easily broken. In addition, since the cut ends of the front waistline portion 20f are less likely to curl up due to the low-stretch region 20NA, the tabs 30 can be easily engaged with the front waistline portion 20f, and the wearer hardly feels the cut ends of the front waistline portion 20f as a foreign object. Therefore, it is preferable that the front waistline portion 20f has the stretchable region 20EA continuously in at least the region where the position in the width direction overlaps with the absorbent main body 10. As shown in FIG.

On the other hand, the rear portion of the napkin 1 is likely to be positioned closer to the toilet bowl than the front portion, and can be passed under the thigh and wrapped around the napkin, so it is likely to come into contact with the toilet bowl. Therefore, it is preferable that the rear waist portion 20b has a continuous elastic region 20EA in the region between the pair of side joints 40 in the width direction. By doing so, the rear waist portion 20b is given stretchability in a wider range in the width direction, and when the waist member 20 is wrapped around the thighs of the wearer, the back portion of the napkin 1 can be suppressed from sagging. .

In addition, the rear waist portion 20b has a non-skin side sheet 21 forming the non-skin side, but as shown in FIGS. It is folded back on the skin side. And it covers the longitudinal end of the back absorbent main body 10 from the skin side.

By doing so, at the upper end portion (the end portion on the side of the waistline) of the rear waistline portion 20b, a large amount of material overlaps in the thickness direction, increasing the rigidity. Therefore, when the waist member 20 is wrapped around the thigh, the rigidity of the rear part (rear waist part 20b) of the napkin 1, which is more likely to come into contact with the toilet bowl, can be increased, and sagging of the rear part of the napkin 1 can be suppressed.

In addition, in the napkin 1 of the present embodiment, as shown in FIG. 2, the absorbent main body 10 has leak-proof wall elastic members 141 (sides) extending and contracting along the longitudinal direction of the absorbent main body 10 at the lateral sides thereof in the width direction. part elastic member). In this case, the stress in the width direction (stretching stress) in the stretchable region 20EA of at least one of the front waistline portion 20f and the rear waistline portion 20b is the stress in the longitudinal direction (stretching stress) in the region where the leakproof wall elastic member 141 is arranged. stress).

By increasing the elastic stress of the front waist portion 20f and the rear waist portion 20b, the fit of the napkin 1 to the wearer's waist can be improved. In addition, sagging of the napkin 1 when the waist member 20 is wrapped around the thigh can be suppressed. On the other hand, by suppressing the stretching stress of the side portion of the absorbent main body 10, when the waist member 20 wrapped around the thigh is rotated along the circumferential direction of the thigh, the absorbent main body 10 is less likely to stretch in its longitudinal direction. Therefore, the waist member 20 can be easily rotated. Further, in the case of the napkin 1, since the amount of excretion is smaller than that of nursing care diapers, even if the elastic stress of the leak-proof wall elastic member 141 is weak, the excreted liquid can be dammed up and side leakage can be suppressed.

The comparison between the stretching stress in the width direction of the front waist portion 20f or the rear waist portion 20b and the stretching stress in the longitudinal direction of the side portions of the absorbent body 10 can be made using a tensile tester (for example, an auto tester manufactured by Shimadzu Corporation). It can be confirmed using a graph type tensile tester AG-1KN1, etc.). First, from the waist member 20f, the entire stretchable region 20EA of the front waistline portion 20f (excluding the low stretchable region 20NA, if any) or the entire stretchable region 20EA of the rear waistline portion 20b is cut out. Also, a region including all the stretchable portions of the leak-proof wall elastic member 141 is cut out from the absorbent main body 10 . The length in the width direction (stretching direction) of the cut-out elastic region 20EA x the width (the length in the direction perpendicular to the stretching direction), and the length in the longitudinal direction (stretching direction) of the elastic part of the cut-out leak-proof wall elastic member 141 Samples are prepared so that the width and height are the same (for example, 200 mm x 25 mm). Then, both ends of each sample in the stretching direction are pinched with chucks, the chuck interval is separated at a speed of 100 mm / min, the sample is stretched until it reaches the maximum stretched state, and then it is reversed and contracted to 80%. Obtain the load (N/25 mm). The tensile load (N/25 mm) should be compared as the stress (stretching stress) of each sample. When the stress varies depending on the location of the waistline portions 20f and 20b, at least the maximum stress of the waistline portions 20f and 20b should be greater than the stress of the side portions of the absorbent main body 10, and more preferably the waistline portion 20f. , 20b should be greater than the stress on the sides of the absorbent body 10 .

Further, as shown in FIG. 2, the absorbent body 10 has a plurality of absorbent body elastic members 15 that expand and contract along its longitudinal direction. The absorbent elastic member 15 is made of, for example, thread rubber, and is positioned closer to the non-skin side than the liquid-impermeable sheet 13a located on the non-skin side of the absorbent core 11 (in FIG. 3, the liquid-impermeable sheet 13a and the hydrophobic and the sheet 13b) in a state of being stretched in the longitudinal direction. In the napkin 1 of this embodiment, five absorbent body elastic members 15 are provided at predetermined intervals in the width direction.

By doing so, as shown in FIG. 8, the absorbent main body 10 contracts and is lifted toward the wearer's skin, and the absorbent main body 10 is easily brought into close contact with the wearer's crotch portion (vaginal opening) and excreted. Liquid leakage can be suppressed. In addition, since the absorbent main body 10 is lifted toward the skin, contact of the absorbent main body 10 with the toilet bowl can be further suppressed when the waist member 20 is wrapped around the thigh. It is preferable that the expansion ratio of the absorbent body elastic member 15 is about 1.4 to 3.3 times. The extension ratio is represented 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 15 to a relatively large ratio.

Moreover, as shown in FIG. 2, the napkin 1 of the present embodiment has a front extending portion 20fe and a rear extending portion 20be ( extension member). The front extending portion 20fe and the rear extending portion 20be can cover the lower abdomen and buttocks of the wearer, and the appearance of the napkin 1 is also improved. However, when the waist member 20 is wrapped around the thighs, the front extension 20fe and the rear extension 20be hang down from the waist member 20 (thighs) and may come into contact with the toilet bowl.

Therefore, it is preferable to provide the front extension 20fe and the rear extension 20be with leg elastic members 25 (for example, rubber threads) that extend and contract along the leg openings 1b. The leg elastic member 25 causes the front extension portion 20fe and the rear extension portion 20be to contract in the width direction and the vertical direction. Therefore, when the waist member 20 is wrapped around the thigh, the front extension fe and the rear extension 20be can be prevented from sagging and can be prevented from coming into contact with the toilet bowl.

In addition, in the napkin 1 of the present embodiment, as shown in FIG. 5, the elastic skin-side sheets 22 and 23 extend from the front waistline portion 20f and the rear waistline portion 20b (side joints 40) to the crotch side. there is In this way, it is preferable to arrange the elastic skin-side sheets 22 and 23 on at least a part of the front extending portion fe and the rear extending portion 20be to provide a stretchable region that stretches in the width direction. By doing so, when the waist member 20 is wrapped around the thigh, the front extension fe and the rear extension 20be can be prevented from sagging and can be prevented from coming into contact with the toilet bowl.

As described above, in the napkin 1 of the present embodiment, in its unfolded state, as shown in FIG. 5, some kind of elastic member (stretchable region) is arranged from one end portion to the other end portion in the vertical direction. Therefore, the entire napkin 1 in its natural state is contracted, and the overall size of the napkin 1 is reduced. Therefore, when the waist member 20 is wrapped around the thigh, the napkin 1 can be prevented from hanging down.

Also, as shown in FIG. 8, the napkin in its natural state, in which the tabs 30 joined to the side joints 40 are engaged with the non-skin side surfaces of the front waistline portion 20f in a state where the tabs 30 are spread toward the inside in the width direction. 1, it is preferable that: The engaging portion 32 included in the tab 30 is provided at a position outside the front absorbent main body 10F in the width direction, and at a position closer to the opening side of the waist in the vertical direction than the front absorbent main body 10F. preferably at least one of: In other words, it is preferable that the engaging portion 32 of the tab 30 is provided outside the front absorbent main body 10 without overlapping with the front absorbent main body 10 in the thickness direction. In the napkin 1 of this embodiment, the engaging portion 32 is positioned outside in the width direction of the front absorbent main body 10F.

By doing so, it is possible to prevent part of the absorbent main body 10 from being damaged when the wearer removes the tab 30 (engagement portion 32) in order to make the pants-type napkin 1 tape-type. . Therefore, deterioration of the absorption function of the absorbent main body 10 can be prevented.

In addition, although the front waist portion 20f has elasticity in the width direction, the elasticity is reduced at a portion overlapping the highly rigid absorbent main body 10 in the thickness direction (the elasticity may be intentionally suppressed in some cases). . When the engaging portion 32 is engaged with the front waistline portion 20f whose stretchability has decreased, the degree of entanglement of the hook material of the engaging portion 32 with the fibers of the front waistline portion 20f is reduced. Therefore, by arranging the engaging portion 32 as described above, the engaging portion 32 can be easily engaged with the portion of the front waistline portion 20f that does not overlap with the absorbent body 10 in the thickness direction. The hook material is easily entangled with the fibers of the front waist portion 20f, and the engagement strength of the tab 30 can be increased.

When the initial state of the napkin 1 taken out of the package is the state shown in FIG. 8, the positions of the napkin 1 in the initial state and the natural state are compared. When the initial state is not the state of FIG. 8 (for example, when the tab 30 is folded), the width direction inner side from the side joint 40 etc. with respect to the napkin 1 in the natural state (the waist member 20 in the natural state) The positions are compared with the tab 30 extending toward the front waist portion 20f engaged with the front waist portion 20f.

Further, the napkin 1 is a pants-type absorbent article for adults, but as shown in FIG. 8, the longitudinal lengths L1 and L2 of the front waist portion 20f and the side joint portions 40 are relatively short. Specifically, in the napkin 1 in the natural state, in which the tabs 30 joined to the side joints 40 are closed inward in the width direction and are engaged with the non-skin side surface of the front waistline portion 20f, the front waistline The vertical lengths L1 and L2 of the portion 20f and the side joint portion 40 are as follows. First, the minimum longitudinal length L1 of the portion 20fC of the front waist portion 20f that overlaps the tab 30 in the width direction is set to 80 mm or more and 150 mm or less. Further, the vertical length L2 of the side joint portion 40 to which the tab 30 is joined is set to 100 mm or more and 160 mm or less.

A portion 20fC of the front waist portion 20f that overlaps with the tab 30 is a portion that is likely to be gripped by the wearer who has opened the tab 30 to tear the front waist portion 20f, as shown in FIG. 6C. Therefore, by making the longitudinal length L1 of the portion 20fC relatively short, the wearer can easily grasp the portion 20fC and pull the front waist portion 20f in front of the thigh. In addition, as shown in FIG. 7D, when the front waist portion 20f on the thigh is pressed from above with the hand, the front waist portion 20f can be pressed over a wide range in the vertical direction, and the position of the front waist portion 20f can be adjusted. can engage the tab 30 in a stable state.

According to the results of a survey of Japanese hand size data by the Artificial Intelligence Research Center, the average length from the base of the thumb and index finger to the tip of the index finger is 100.6 mm for women and 100.6 mm for men. 109.7 mm for both sexes (male and female) and 107 mm for both sexes. Therefore, by setting the dimension L1 of the front waist portion 20f to 150 mm or less, the wearer can hold or hold the front waist portion 20f for more than half the length in the vertical direction. Therefore, the tab 30 can be stably engaged, and the wearability of the napkin 1 is improved.

On the other hand, the waist member 20 is a member that expands and contracts in the width direction and fits the wearer's waist. Therefore, it is preferable that the above-described dimension L1 of the front waist portion 20f is set to 80 mm or more and not too short. By doing so, the napkin 1 can be prevented from slipping down, and the wearer can use the napkin 1 with peace of mind.

In addition, by shortening the vertical length L2 of the side joints 40 in the same manner as the front waistline portion 20f, the vertical length of the tab 30 joined to the side joints 40 is also shortened. Therefore, as shown in FIG. 6C, it becomes easier for the wearer to grip the tab 30 . However, the vertical length L2 of the side joint portion 40 is preferably slightly longer than the vertical length L1 of the front waist portion 20f, and is in the range of 100 mm or more and 160 mm or less. By doing so, when the wearer holds the tab 30 and pulls up the napkin 1 from under the thigh as shown in FIG. Pulling force can be easily transmitted over a wide range. Therefore, it becomes easier to pull up the rear part of the napkin 1 from under the thigh. However, the present invention is not limited to this, and the longitudinal lengths L1 and L2 of the front waist portion 20f and the side joint portions 40 may be equal.

By shortening the lengths L1 and L2 of the front waist portion 20f and the side joint portions 40 in this manner, the wearability of the napkin 1 is improved when the wearer wears the napkin 1 by himself/herself. In the case of an adult pants-type absorbent article (for example, the napkin 1 of the present embodiment, a diaper for light incontinence, etc.) intended for a wearer who wears it by himself, compared to a nursing pants-type absorbent article, the absorption The absorbent core 11 is small, and the absorbent core 11 after excretion is also light. Therefore, even if the lengths L1 and L2 of the front waist portion 20f and the side joint portions 40 are shortened, the pants-type absorbent article is less likely to slide down.

Furthermore, by shortening the lengths L1 and L2 of the front waist portion 20f and the side joint portions 40, as shown in FIG. becomes difficult to hang down. Therefore, the napkin 1 is less likely to come into contact with the toilet and can be used hygienically. Moreover, since the napkin 1 has a shape similar to underwear, the appearance of the napkin 1 is also improved.

=== Other Embodiments ===
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.

For example, in the above-described embodiment, elastic skin-side sheets 22 and 23 are arranged on the waist member 20, so that the waist member 20 is provided with elasticity in the width direction. Instead of the stretchable sheet, stretchability may be imparted to the waist member 20 by arranging a plurality of thread-like elastic members (such as thread rubber) stretchable in the width direction at intervals in the vertical direction.

In addition, when the volume of the absorbent core 11 is 100 cm ³ or more and 250 cm ³ or less, and the center line CL1 of the engaging portion 32 is held horizontally, the lowest end of the absorbent core 11 is the lowest part of the product. the length from the horizontal line LH (see FIG. 9) to the bottom end of the product is shorter than the length to the top end of the product; the first center C1 and the second center The line La connecting C2 and the line Lb connecting the second center C2 and the third center C3 have the same slope. Just do it.

The front waistline portion 20f and the rear waistline portion 20b are not limited to being joined by the side joint portions 40 formed by welding or the like. and the hook material that engages with it, or the hook material and the female member of the hook-and-loop fastener may be engaged, and the hook material may be used as an engaging portion of the tab (engaging member) good.

1 napkin (pants-type absorbent article),
1a waist opening, 1b leg opening,
10 absorbent body, 11 absorbent core, 12 top sheet,
13 back sheet, 13a liquid-impermeable sheet, 13b hydrophobic sheet,
14 leak-proof wall portion, 141 leak-proof wall elastic member (side elastic member),
20 waist member,
20f front waistline portion, 20fA ventral contact portion 20b rear waistline portion,
20EA stretch area, 20NA low stretch area,
21 non-skin side sheet, 22 skin side sheet, 23 skin side sheet,
24 waist elastic member, 25 leg elastic member,
26 cut lines,
30 tabs (engaging members, other engaging members),
31 base sheet, 32 locking portion, 33 welding portion,
40 side joints (joints),
50 absorber elastic member,

Claims (22)

having a longitudinal direction, a width direction, and a front-rear direction that intersect each other;
an absorbent body comprising an absorbent core;
a waist member including a front waist portion and a rear waist portion that overlap with the absorbent main body in the front-rear direction;
an engaging member having an engaging portion that removably engages with the front waist portion;
A pants-type absorbent article for adults having
A center line connecting the center in the width direction of one end of the engaging portion in the longitudinal direction and the center in the width direction of the other end in the longitudinal direction of the engaging portion, A pair of pants characterized in that, when the pants-type absorbent article is held horizontally, the lowest end of the absorbent core is located above the lowest end of the pants-type absorbent article. type absorbent article. having a longitudinal direction, a width direction, and a front-rear direction that intersect each other;
an absorbent body comprising an absorbent core;
a waist member including a front waist portion and a rear waist portion that overlap with the absorbent main body in the front-rear direction;
an engaging member including an engaging portion that removably engages with the front waist portion;
A pants-type absorbent article for adults folded in two in the front-rear direction at the two-folding portion,
A center line connecting the center in the width direction of one end of the engaging portion in the longitudinal direction and the center in the width direction of the other end in the longitudinal direction of the engaging portion, When the pants-type absorbent article is held horizontally,
From a horizontal line passing through the intersection of the upper side edge of the widthwise side edges of the front absorbent core and the two-fold portion to the bottom edge of the pants-type absorbent article 2, the length in the vertical direction is shorter than the length in the vertical direction from the horizontal line to the top end of the pants-type absorbent article. having a longitudinal direction, a width direction, and a front-rear direction that intersect each other;
an absorbent body comprising an absorbent core;
a waist member including a front waist portion and a rear waist portion that overlap with the absorbent main body in the front-rear direction;
an engaging member having an engaging portion that removably engages with the front waist portion;
A pants-type absorbent article for adults having
The absorbent body on the front side comprises:
a first center that is the center in the width direction of one end in the longitudinal direction;
a second center that is the center in the width direction of the center line that bisects the front absorbent body in the longitudinal direction;
a third center that is the widthwise center of the other end in the vertical direction,
A center line connecting the center in the width direction of one end of the engaging portion in the longitudinal direction and the center in the width direction of the other end in the longitudinal direction of the engaging portion, When the pants-type absorbent article is held horizontally, the inclination of the line connecting the first center and the second center with respect to the horizontal direction, and the inclination of the line connecting the second center and the third center. The underpants-type absorbent article, wherein the inclination with respect to the horizontal direction is the same. The pants-type absorbent article according to any one of claims 1 to 3,
When the pants-type absorbent article held so that the center line is horizontal is viewed from the front side, the lower side edge of the pair of side edges of the absorbent main body in the width direction is lower than the lower side edge. A pants-type absorbent article, wherein the skin side of the absorbent main body on the back side is visible on the side. The pants-type absorbent article according to any one of claims 1 to 3,
When the pants-type absorbent article held so that the center line is horizontal is viewed from the front side, the upper side edge of the pair of side edges of the absorbent main body in the width direction is positioned above the upper side edge. , a pants-type absorbent article characterized in that the skin side of the absorbent main body on the rear side is visible. The pants-type absorbent article according to any one of claims 1 to 5,
Another engaging member is provided at a position opposite to the engaging member in the width direction,
When the pants-type absorbent article is held so that the center line is horizontal, the engaging portion provided by the other engaging member is positioned above the lowest end of the pants-type absorbent article. An underpants-type absorbent article characterized by: The pants-type absorbent article according to any one of claims 1 to 6,
Another engaging member is provided at a position opposite to the engaging member in the width direction,
When the pants-type absorbent article is held so that the center line is horizontal, with respect to a vertical line that passes through the end of the engagement portion provided in the engagement member on the waist circumference side in the vertical direction, The underpants-type absorbent article, wherein at least a part of the engaging portion of the other engaging member is positioned on the waistline side. having a longitudinal direction, a width direction, and a front-rear direction that intersect each other;
an absorbent body comprising an absorbent core;
a waist member including a front waist portion and a rear waist portion that overlap with the absorbent main body in the front-rear direction;
an engaging member having an engaging portion that removably engages with the front waist portion;
A pants-type absorbent article for adults having
A pants-type absorbent article, wherein the volume of a portion of the pants-type absorbent article where the absorbent core is arranged is 100 cm ³ or more and 250 cm ³ or less. The pants-type absorbent article according to any one of claims 1 to 8,
A pants-type absorbent article, wherein the width of the absorbent core is 50 mm or more and less than 100 mm. The pants-type absorbent article according to any one of claims 1 to 9,
A pants-type absorbent article in an unfolded and stretched state, wherein the thickness of the pants-type absorbent article at a portion where the absorbent core is disposed is less than 5.5 mm. The pants-type absorbent article according to any one of claims 1 to 10,
A pants-type absorbent article, wherein the absorbent core has a mass of 10 g or more and 40 g or less. The pants-type absorbent article according to any one of claims 1 to 11,
The engaging portion included in the engaging member is
provided at a position outside the front absorbent main body in the width direction;
A pants-type absorbent article characterized by at least one of: being provided at a position closer to the waist in the vertical direction than the absorbent main body on the front side. The pants-type absorbent article according to any one of claims 1 to 12,
One engaging member having one engaging portion is provided on one side of the waist member in the width direction,
A pants-type absorbent article, wherein one other engaging member having one engaging portion is provided on the other side of the waist member in the width direction. The pants-type absorbent article according to any one of claims 1 to 13,
The front waist portion has a perforation line having a length in the vertical direction,
The underpants-type absorber, wherein the engaging member is visible from the non-skin surface side of the front waist portion in a state where the front waist portion is not torn in the longitudinal direction along the perforation line. Goods. The pants-type absorbent article according to any one of claims 1 to 14,
The underpants-type absorbent article, wherein the front waist portion has a continuous stretchable region that stretches in the width direction at least in a region where the position in the width direction overlaps with the absorbent body. The pants-type absorbent article according to any one of claims 1 to 15,
Both side portions in the width 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 rear waist portion has a continuous elastic region that expands and contracts in the width direction in a region between the pair of joints in the width direction. The pants-type absorbent article according to any one of claims 1 to 16,
A pants-type absorbent article in an unfolded and stretched state, wherein a length from one end of the pants-type absorbent article to the center in the vertical direction is 200 mm or more and 350 mm or less. sexual goods. The pants-type absorbent article according to any one of claims 1 to 17,
A pants-type absorbent article, wherein the absorbent main body has an absorbent elastic member that expands and contracts along the longitudinal direction of the absorbent main body. The pants-type absorbent article according to any one of claims 1 to 18,
The pants-type absorbent article has an extension member extending from at least one of the front waistline portion and the rear waistline portion toward the crotch side in the vertical direction,
The underpants-type absorbent article, wherein the extending member has a stretchable region that stretches and contracts in the width direction. The pants-type absorbent article according to any one of claims 1 to 19,
The back waist part has a non-skin side sheet forming the non-skin side,
A pants type characterized in that the longitudinal end of the non-skin-side sheet on the waistline side is folded back toward the skin, covering the longitudinal end of the absorbent main body from the skin side. absorbent article. The pants-type absorbent article according to any one of claims 1 to 20,
The underpants-type absorbent article, wherein the absorbent main body has a region in which the absorbent core does not exist in the lateral side portion in the width direction. The pants-type absorbent article according to any one of claims 1 to 21,
At least one of the front waistline portion and the rear waistline portion has a stretchable region that stretches in the width direction,
The absorbent main body has side elastic members extending and contracting along the longitudinal direction of the absorbent main body at the lateral sides in the width direction,
The stress in the width direction in the elastic region of at least one of the front waist portion and the rear waist portion is larger than the stress in the longitudinal direction in the region where the side elastic members are arranged. A pants-type absorbent article.

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