JP7100977B2 - Absorbent article - Google Patents

Description

The present invention relates to absorbent articles such as disposable diapers.

The absorbent article described in Patent Document 1 has an absorbent main body and an exterior body arranged on the non-skin facing surface side of the absorbent main body. The absorbent body is fixed to the skin-facing surface side of the exterior body (see FIG. 3 of Patent Document 1). The absorptive body has an absorptive core and a front end extending anterior to the absorptive core. The front end portion has a liquid-impermeable sheet and a main body sheet that overlaps the liquid-impermeable sheet in the thickness direction.

Japanese Unexamined Patent Publication No. 2016-34341

The absorbent article thus constructed generally has the highest stiffness in the region where the absorbent core is located. The rigidity of the front end portion of the absorbent body is the second highest after the rigidity of the region where the absorbent core is arranged, and the rigidity of the region where only the exterior body is arranged is lower than the rigidity of the front end portion of the absorbent body. When the wearer moves the legs back and forth, the force that moves in the front-back direction is applied to the absorption core, the front end of the absorbent body moves to the front side through the absorption core, and the relatively low-rigidity exterior body is easily deformed. .. At this time, the exterior body is deformed by applying a force from the absorbent core and the absorbent body located on the skin facing surface side toward the exterior body located on the non-skin facing surface side, so that the exterior body is separated from the wearer. It is easy to lift up. By floating away from the wearer, there was a risk that the position of the exterior body placed in the front waistline area would shift.

Therefore, an absorbent article that can suppress the displacement of the exterior body in the front waist circumference area by moving the wearer's legs is desired.

The absorbent article according to one aspect is an inseam arranged in the front-rear direction, the width direction orthogonal to the front-back direction, the front waist circumference area, the rear waist circumference area, and the front waist circumference area and the rear waist circumference area. An absorbent body arranged across the inseam area, the front waist area and the rear waist area, and the absorbent body arranged on the non-skin facing surface side of the absorbent body and arranged in the front waist area. An absorbent article comprising a front exterior body, wherein the absorbent body has an absorbent core and a front end extending forward of the absorbent core at the front end of the absorbent body. Is provided with at least a liquid-impermeable sheet and a liquid-permeable main body sheet that overlaps the liquid-impermeable sheet in the thickness direction, and the liquid-impermeable sheet and the main body sheet are not joined to each other. A bonded region and a non-bonded region of the main body to which the absorbent main body and the front exterior body are not bonded are provided, and the non-bonded region of the sheet and the non-bonded region of the main body are provided at the front end portion of the absorbent main body. An overlapping region that overlaps the joint region is provided.

It is a front view of the absorbent article which concerns on embodiment. It is a top view of the absorbent article which concerns on embodiment. It is sectional drawing along the AA cross section of the absorbent article shown in FIG. It is sectional drawing along the BB cross section of the absorbent article shown in FIG. It is a figure which showed typically the cross section of the attached state of the absorbent article which concerns on embodiment. It is a figure which showed typically the cross section of the attached state of the absorbent article which concerns on a comparative example.

(1) Outline of Embodiment At least the following matters will be clarified by the description of this specification and the accompanying drawings.
The absorbent article according to one aspect is an inseam arranged in the front-rear direction, the width direction orthogonal to the front-back direction, the front waist circumference area, the rear waist circumference area, and the front waist circumference area and the rear waist circumference area. The area, the inseam area, the anterior waist area, and the absorbent body arranged across the rear waist area, and the absorbent body arranged on the non-skin facing surface side of the absorbent body, and arranged in the front waist area. An absorbent article comprising a front exterior body, wherein the absorbent body has an absorbent core and a front end extending forward of the absorbent core at the front end of the absorbent body. Is a sheet in which at least a liquid-impermeable sheet and a liquid-permeable main body sheet that overlaps the liquid-impermeable sheet in the thickness direction are arranged, and the liquid-impermeable sheet and the main body sheet are not joined. A bonded region and a non-bonded region of the main body to which the absorbent main body and the front exterior body are not bonded are provided, and the non-bonded region of the sheet and the non-bonded region of the main body are provided at the front end portion of the absorbent main body. An overlapping region that overlaps the joint region is provided.

Since the overlapping region is provided at the front end portion of the absorbent body, the overlapping region is easily deformed when a force moving from the absorption core to the front side is applied. Deformation of the front end of the absorbent body makes it difficult for the absorbent body to push up the front exterior. It is possible to suppress deformation such that the front exterior body is lifted, suppress misalignment of the front exterior body, and continue to cover the wearer's abdomen.

According to a preferred embodiment, at least a part of the overlapping region is arranged so as to overlap the absorption core in the anteroposterior direction.

A region that overlaps the absorption core in the front-rear direction is likely to be subjected to a force from the absorption core toward the front side. By providing the overlapping region in at least a part of the region, the deformation caused by the absorbing core can be absorbed by the front end portion of the absorbent body, and the misalignment of the exterior body in the front waist circumference region and the rear waist circumference region can be suppressed.

According to a preferred embodiment, the absorbent body has a central region located in the center of the absorbent core in the width direction, which is a region obtained by dividing the total length of the absorbent core in the width direction into three equal parts.
The overlapping region is arranged so as to overlap the central region in the front-rear direction.

When the wearer moves the legs in the front-rear direction while the absorption core is sandwiched between the wearer's legs, the force tends to be concentrated in the center of the absorption core in the width direction, and the shape of the front end of the absorption core is in the width direction. The center tends to protrude to the front side rather than the side portion in the width direction. Therefore, a force from the absorption core toward the front side is more likely to be applied to the region that overlaps the central region in the front-rear direction. By providing the overlapping region in the region, the deformation caused by the absorbing core can be absorbed by the front end portion of the absorbent body, and the deformation of the exterior body can be further suppressed.

According to a preferred embodiment, the overlapping region is arranged so as to overlap the entire width direction of the absorption core and the front-rear direction.

By providing the overlapping region in the region overlapped in the width direction and the front-rear direction of the absorption core, the deformation due to the absorption core can be absorbed by the front end portion of the absorbent body, and the deformation of the exterior body can be further suppressed.

According to a preferred embodiment, the non-junction region of the body is provided on the front edge of the absorbent body.

Since both the main body non-joining region and the sheet non-joining region are provided on the front end edge of the absorbent main body, it is more easily deformed. Deformation due to the absorbent core is absorbed by the front end edge of the absorbent body, and the absorbent body makes it difficult to push up the front exterior body, so that the deformation of the exterior body can be further suppressed.

According to a preferred embodiment, the sheet non-joining region extends toward the inseam region with respect to the main body non-joining region.

Many of the liquid-impermeable sheets have higher rigidity than the liquid-permeable sheets, and the sheet non-bonded region tends to have an effect of lowering the rigidity as compared with the main body non-bonded region. Since the sheet non-joining region extends toward the inseam region from the main body non-joining region, it is easier to obtain the effect of absorbing the deformation of the absorbing core by the deformation of the absorbent main body.

According to a preferred embodiment, the sheet non-joining region extends outward in the width direction from the main body non-joining region.

Since the sheet non-joining region extends outward in the width direction from the main body non-joining region, the rigidity can be reduced over the entire width direction of the main body non-joining region. Deformation of the outer body can be further suppressed by the deformation of the overlapping region of the front end portion of the absorbent body.

According to a preferred embodiment, the main body sheet is arranged on the skin-facing surface side of the liquid-impermeable sheet and the non-skin-facing surface side of the liquid-impermeable sheet. Has 2 main body sheets and
In the sheet non-bonding region, the liquid impermeable sheet is not bonded to the first main body sheet and is not bonded to the second main body sheet.

Since the liquid-impermeable sheet is not joined to the first main body sheet and the second main body sheet, the liquid-impermeable sheet is more easily deformed. Therefore, the front end portion of the absorbent main body is more easily deformed, the deformation of the exterior body floating up can be suppressed, and the displacement of the exterior body in the front waist circumference region can be suppressed.

According to a preferred embodiment, the liquid impermeable sheet and the main body sheet are arranged so as to straddle the region overlapping the absorption core and the front end portion in the thickness direction, and the absorption in the thickness direction. Arranged across the core,
A sheet bonding region in which the liquid-impermeable sheet and the main body sheet are bonded is provided on the inseam region side of the sheet non-bonding region.
The inner edge of the sheet non-joining region on the inseam region side is arranged on the front side of the absorption core.

Since the inner edge of the inseam region side of the sheet non-joining region is located on the front side of the absorption core, the sheet joining region is provided on the front side of the absorption core. The region where the liquid-impermeable sheet and the main body sheet are joined can prevent the absorbent material constituting the absorbent core from leaking to the outside of the absorbent main body.

According to a preferred embodiment, the cover sheet is arranged on the skin facing surface side of the absorbent body, and the sheet non-joining region is a cover non-joining region where the absorbent body and the cover sheet are not joined. It is arranged so as to overlap at least a part of the above in the thickness direction.

The cover sheet located on the side facing the skin of the wearer may be in close contact with the skin and the cover sheet may not be easily deformed. The front end of the absorbent body is not joined to the cover sheet and is easy to move with respect to the cover sheet. Even when the cover sheet is difficult to be deformed, the front end portion of the absorbent main body is easily deformed, the deformation of the exterior body from being lifted can be suppressed, and the displacement of the exterior body in the front waist circumference region and the rear waist circumference region can be suppressed.

(2) Overall Outline of Absorbable Articles The absorbent articles according to the embodiment will be described below with reference to the drawings. In the description of the drawings below, the same or similar parts are designated by the same or similar reference numerals. However, it should be noted that the drawings are schematic and the ratio of each dimension is different from the actual one. Therefore, the specific dimensions, etc. should be determined in consideration of the following explanation. Further, even between the drawings, there may be a portion where the relationship and ratio of the dimensions of the drawings are different from each other.

The absorbent article may be a tape type or a pants type. The absorbent article may be a disposable diaper or a shorts-type menstrual napkin. The absorbent article of the first embodiment is a pants-type disposable diaper. FIG. 1 is a schematic front view of the absorbent article 10 according to the present embodiment. FIG. 2 is a schematic plan view of the absorbent article 10 according to the present embodiment. The schematic plan view shown in FIG. 2 shows an extended state in which the absorbent article 10 is extended to a state in which wrinkles are not formed in a state where the side joint portion 60 described later is expanded. FIG. 3 is a cross-sectional view taken along the line AA shown in FIG. 2, and FIG. 4 is a cross-sectional view taken along the cross section taken along the line BB shown in FIG.

The absorbent article 10 has an anteroposterior direction L and a width direction W orthogonal to each other. The anterior-posterior direction L is defined by the direction extending to the anterior side and the posterior side of the body. In other words, the anteroposterior direction L is a direction extending anteroposteriorly in the deployed absorbent article 10. Further, the absorbent article 10 has an orthogonal thickness direction T in both the front-rear direction L and the width direction W.

The absorbent article 10 has a front waist circumference area S1, a rear waist circumference area S2, and an inseam area S3. The front waist circumference area S1 is a region facing the front waist circumference (abdomen) of the wearer. The rear waist circumference area S2 is a region facing the rear waist circumference (back) of the wearer. The inseam area S3 is located in the inseam of the wearer and is an area arranged between the front waist area S1 and the rear waist area S2.

In the present embodiment, the absorbent article 10 may have an exterior body 15 and an absorbent main body 40. The exterior body 15 overlaps with the absorbent main body 40 in the thickness direction, and is arranged at least in the front waist circumference region S1. The exterior body 15 may have a front side exterior body 20 and a rear side exterior body 30. The front exterior body 20 is an exterior body arranged on the non-skin facing surface side T2 of the absorbent main body 40 in the front waist circumference region S1. The rear exterior body 30 is an exterior body that is separated from the front exterior body 20 in the front-rear direction L and is arranged on the non-skin facing surface side T2 of the absorbent main body 40 in the rear waist circumference region S2.

The exterior body 15 may have a cover sheet 27 arranged on the skin facing surface side T1 of the absorbent body 40. The cover sheet 27 may be provided on the skin-facing surface side T1 of the absorbent main body 40 in the front waist circumference region.

The inseam region S3 is a region in which a leg circumference opening 72 (see FIG. 1), which will be described later, is formed. The boundary on the inseam region side of the front waist circumference region S1 is the front end edge of the leg circumference opening 72, and the boundary on the inseam region side of the rear waist circumference region S2 is the rear end edge of the leg circumference opening 72. In another embodiment, the exterior body 15 may be provided so that the front exterior body 20 and the rear exterior body 30 are integrated and are provided from the front waist circumference region S1 to the rear waist circumference region S2.

The front exterior body 20 and the rear exterior body 30 may be made of a sheet such as a non-woven fabric. The front exterior body 20 may have a plurality of exterior sheets. The exterior sheet may include a first exterior sheet 25 and a second exterior sheet 26 located on the non-skin facing surface side T2 of the first exterior sheet 25. The cover sheet 27 may be made of a sheet such as a non-woven fabric. The cover sheet 27 may be composed of a portion in which at least one of the first exterior sheet 25 and the second exterior sheet 26 constituting the front exterior sheet 20 is folded back to the skin facing surface side T1 or the first exterior sheet 25. And the second exterior sheet 26 may be composed of a separate sheet.

As shown in FIG. 1, a side joint portion 60 may be provided in which the outer portion of the front waist circumference region S1 in the width direction W and the outer portion of the rear waist circumference region S2 in the width direction W are joined. FIG. 2 shows a state in which the side joint portion 60 is released from the joint and the absorbent article 10 is unfolded. The side joint portion 60 may extend along the front-rear direction L in each of the front exterior body 20 and the rear exterior body 30.

The outer portion in the present invention is a portion that occupies a certain range in the width direction W including the outer edge in the width direction W, and the outer edge is an outer edge in the width direction W. The inner portion in the present invention is a portion that occupies a certain range in the width direction W including the inner edge in the width direction W, and the inner edge is an inner edge in the width direction W. Further, the front end portion and the rear end portion in the present invention are portions that occupy a certain range in the front-rear direction L including the edge in the front-rear direction L, and the front end edge and the rear end edge are edges in the front-rear direction L. The outer end includes a front end and a rear end, and the outer edge includes a front end edge and a rear end edge.

As shown in FIG. 1, with the side joint 60 formed, the absorbent article 10 has a pair of waist opening 71 through which the wearer's torso is passed and a pair of legs into which the wearer's legs are inserted. The leg circumference opening 72 is formed. The waist circumference opening 71 is defined by the front end edge 20F of the front exterior body which is the front end edge S1F of the front waist circumference region S1 and the rear end edge 30R of the rear side exterior body 30 which is the rear end edge S2R of the rear waist circumference region S2. You may be. Further, the leg circumference opening 72 extends to the outside of the width direction W from the absorbent body 40 and the rear end edge 20R of the front exterior body 20 extending to the outside of the absorbent body 40 in the width direction W. It may be defined by the front edge 30F of the rear exterior body 30 and the outer edge 40E of the absorbent body 40 in the inseam region S3.

The absorbent main body 40 is arranged so as to straddle the front exterior body 20 and the rear exterior body 30. That is, the absorbent main body 40 extends over the front waist circumference region S1, the rear waist circumference region S2, and the inseam region S3. The absorbent main body 40 may be configured as a separate body from the front exterior body 20 and the rear exterior body 30. The absorbent body 40 includes a region where the front exterior body 20 or the rear exterior body 30 is arranged on the non-skin facing surface side T2, a region that does not overlap the exterior body 15 in the thickness direction T, and a front exterior body 20 and a cover. It may have a region sandwiched by the sheet in the thickness direction.

The absorbent body 40 includes at least an absorbent core 50. The absorbent core 50 may contain, for example, ground pulp or a highly absorbent polymer (SAP), or a mixture thereof. The absorption core 50 is arranged at least in the inseam region S3. Preferably, the absorption core 50 may extend from the front girth region S1 to the rear girth region S2 in the front-rear direction L. The absorption core 50 may be covered by a core wrap.

As shown in FIG. 2, the absorbent body 40 may have a front end 45 extending forward of the absorbent core 50. The front end portion 45 is a region between the front end edge 50F of the absorption core 50 and the front end edge 40F of the absorbent body 40 in the front-rear direction L, and is outside one outer edge 40E of the absorbent body 40 in the width direction W. The area up to the edge 40E. In FIGS. 3 and 4, the range in the front-rear direction and the range in the width direction of the front end portion 45 are shown. Further, the absorbent body 40 may have a central region CR located at the center of the absorption core 50 in the width direction W. The central region CR is a region located in the center of the width direction W among the regions obtained by dividing the total length of the absorption core 50 in the width direction W into three equal parts.

As shown in FIGS. 3 and 4, the absorbent main body 40 may have at least a liquid impermeable sheet 41 and a main body sheet 42 that overlaps the liquid impermeable sheet 41 in the thickness direction T. The liquid-impermeable sheet 41 and the main body sheet 42 may be arranged at least at the front end portion 45. The liquid-impermeable sheet 41 and the main body sheet 42 may be arranged so as to straddle the region overlapping the absorption core 50 and the front end portion 45. The liquid impermeable sheet 41 may be arranged on the non-skin facing surface side T2 rather than the absorption core 50. The main body sheet 42 has a first main body sheet 42A arranged on the skin facing surface side T1 of the liquid impermeable sheet 41 and on the skin facing surface side T1 of the absorption core 50, and the main body sheet 42 is non-skin facing more than the liquid impermeable sheet 41. It may have a second main body sheet 42B arranged on the surface side T2.

In the front end portion 45 of the absorbent main body 40 of the present embodiment, the first main body sheet 42A, the liquid permeable sheet 41, and the second main body sheet 42B are in this order from the skin facing surface side T1 to the non-skin facing surface side T2. It is arranged in. In the region overlapping the absorption core 50 of the present embodiment, the first main body sheet 42A, the absorption core 50, the liquid permeable sheet 41, and the second main body sheet are directed from the skin facing surface side T1 to the non-skin facing surface side T2. They are arranged in the order of 42B. The first main body sheet 42A and the liquid impermeable sheet 41 may be arranged so as to sandwich the absorption core 50 in the thickness direction T.

The liquid-impermeable sheet 41 may be impermeable as long as it is impermeable, and may be made of, for example, a film. The liquid-impermeable sheet 41 may be composed of one sheet. Instead, the liquid-impermeable sheet 41 may be composed of a laminated sheet in which a plurality of sheets are laminated to each other. In this case, at least one of the plurality of sheets may have a liquid-permeable property.

The main body sheet 42 may be liquid-permeable, and may be made of, for example, a non-woven fabric. The main body sheet 42 may be composed of one sheet. Instead, the main body sheet 42 may be composed of a laminated sheet in which a plurality of sheets are laminated to each other.

The absorbent article thus constructed has a bonded region and a non-bonded region. The joining region includes a region where the exterior body 15 and the absorbent main body 40 are joined, a region where the liquid-impermeable sheet 41 and the main body sheet 42 of the absorbent main body 40 are joined, a region where the exterior sheets are joined together, and an exterior sheet. Includes the area where the cover sheet is joined. The non-bonding region is a region where the exterior body 15 and the absorbent main body 40 are not joined, a region where the liquid impermeable sheet 41 and the main body sheet 42 of the absorbent main body 40 are not joined, and a region where the exterior sheets are not joined to each other. , And the area where the exterior sheet and the cover sheet are not joined. Next, the bonded region and the non-bonded region of the absorbent article 10 will be described. The non-bonded region in the present invention includes not only the region to which the adhesive is not applied but also the region to which the adhesive is slightly applied but the members are not adhered to each other via the adhesive. ..

The absorbent article 10 may have a sheet non-bonding region NS in which the liquid impermeable sheet 41 and the main body sheet 42 are not bonded. At least a part of the sheet non-joining region NS may be provided at the front end portion 45. The sheet non-joining region NS may be provided in the entire area of the front end portion 45, or may be provided in a part of the front end portion 45.

The absorbent article 10 may have a main body non-joining region NB in which the absorbent main body 40 and the front exterior body 20 are not joined. The main body non-joining region NB may be a region in which the sheet arranged to face the front exterior body 20 and the front exterior body 20 are not joined among the sheets constituting the absorbent main body 40. Specifically, in the form in which the second main body sheet 42B is arranged on the entire surface of the non-skin facing surface of the absorbent main body 40, it is a region where the second main body sheet 42B and the front exterior body 20 are not joined. It's okay. In the form in which the second main body sheet 42B and the liquid impermeable sheet 41 are arranged on the non-skin facing surface of the absorbent main body 40, the region where the second main body sheet 42B and the front exterior body 20 are not joined and the liquid It may include a region where the impermeable sheet 41 and the front exterior body 20 are not joined. At least a part of the main body non-joining region NB may be provided at the front end portion 45. The main body non-joining region NB may be provided in the entire area of the front end portion 45, or may be provided in a part of the front end portion 45.

The absorbent article 10 may have an overlapping region DR in which the sheet non-bonding region NS and the main body non-bonding region NB overlap. The overlapping region DR is a region where the sheet non-joining region NS and the main body non-joining region NB overlap in the thickness direction T. At least a part of the overlapping region DR may be provided at the front end portion 45. The overlapping region DR may be provided in the entire area of the front end portion 45, or may be provided in a part of the front end portion 45.

According to the absorbent article 10 configured in this way, the displacement of the exterior body 15 in the front waist circumference region S1 can be suppressed by the movement of the wearer's legs. 5 and 6 are views schematically showing a cross section of the absorbent article in a mounted state, and schematically show the abdomen of the wearer and the anterior waist circumference area of the absorbent article. The alternate long and short dash line shown in FIGS. 5 and 6 indicates the line of the wearer's body. FIG. 5 shows the wearing state of the absorbent article according to the embodiment, and FIG. 6 shows the wearing state of the absorbent article according to the comparative example. 5 (A) and 6 (A) show the state before the deformation, and FIGS. 5 (B) and 6 (B) show the deformed state in which the leg is moved back and forth.

As shown in FIG. 6, the front end portion 145 of the absorbent article 100 according to the comparative example is not provided with the sheet non-joining region NS and the main body non-joining region NB. In the absorbent article 100 according to the comparative example, at the front end portion 145, the bonding region R101 to which the liquid-impermeable sheet 41 and the main body sheet 42 are joined, and the joining region R102 to which the absorbent main body 40 and the front exterior body 20 are joined. , Are provided. The front end portion 145 is provided with a region R103 in which the joint region R101 and the joint region R102 overlap in the thickness direction. In the absorbent article 100 configured in this way, since the region R103 overlaps at the front end portion 145, the rigidity of the front end portion 145 tends to be high. When the wearer moves the leg back and forth, a force that moves in the front-back direction L is applied to the absorption core 50, and the front end portion of the absorbent body 40 moves to the front side via the absorption core 50. At this time, as shown in FIG. 6, since the force is applied from the absorbent main body 40 located on the skin facing surface side T1 toward the front exterior body 20 located on the non-skin facing surface side T2, the front exterior body 20 is It floats away from the wearer, and a space S is likely to be formed between the front end portion 145 and the wearer. By floating away from the wearer, the front end edge S1F of the front waist circumference area S1 may be displaced toward the inseam area S3, and the position of the front exterior body 20 may be displaced.

As shown in FIG. 5, the front end portion 45 of the absorbent article 10 according to the embodiment is provided with an overlapping region DR in which the sheet non-joining region NS and the main body non-joining region NB overlap. The absorbent article 10 according to the embodiment is provided with a region at the front end portion 45 where the sheets constituting the absorbent main body 40 are not joined and the absorbent main body 40 and the front exterior body 20 are not joined. There is. Since the sheet non-bonding region NS is provided at the front end portion 45 of the absorbent main body 40, the rigidity of the front end portion 45 of the absorbent main body 40 is compared with the configuration in which the liquid permeable sheet 41 and the main body sheet 42 are joined. Is lowered, and the front end portion 45 of the absorbent main body 40 is easily deformed. In particular, the liquid-impermeable sheet 41 is made of a film or the like, and is often more rigid than the liquid-permeable sheet. The sheet non-bonding region NS can reduce the rigidity of the liquid-impermeable sheet 41, and the front end portion 45 of the absorbent main body 40 is easily deformed.

Further, since the overlapping region DR is provided at the front end portion 45 of the absorbent main body 40, the overlapping region DR is more easily deformed when a force moving from the absorption core 50 to the front side is applied. Since the front end portion 45 of the absorbent main body 40 is deformed, it becomes difficult for the absorbent main body 40 to push up the front exterior body 20. It is possible to suppress deformation such that the front exterior body 20 floats from the body, suppress misalignment of the front exterior body 20, and continue to cover the wearer's abdomen.

The overlapping region DR may be provided in the entire area of the front end portion 45, or may be provided in a part of the front end portion 45. The front edge of the overlapping region DR may coincide with the front edge 40F of the absorbent body 40, or may be located posterior to the front edge 40F of the absorbent body 40. The trailing edge of the overlapping region DR may be located anterior to the anterior edge 50F of the absorption core 50, may be located posterior to the anterior edge 50F of the absorption core 50, or the anterior edge of the absorption core 50. It may match 50F. The outer edge of the overlapping region DR may coincide with the outer edge 40E of the absorbent body 40, or may be located inside the outer edge 40E of the absorbent body 40 in the width direction W.

Preferably, at least a part of the overlapping region DR may be arranged so as to overlap with the absorption core 50 in the front-rear direction L. A force directed from the absorption core 50 toward the front side is likely to be applied to the region that overlaps the absorption core 50 in the front-rear direction L. By providing the overlapping region DR in at least a part of the region, the deformation caused by the absorption core 50 can be absorbed by the front end portion 45 of the absorbent main body 40, and the positional deviation of the exterior body 15 in the front waist circumference region S1 can be suppressed.

More preferably, the overlapping region DR may be arranged so as to overlap with the central region CR in the front-rear direction L. When the wearer moves the legs in the front-rear direction while the absorption core 50 is sandwiched between the wearer's legs, the force tends to be concentrated in the center of the width direction W of the absorption core 50, and the shape of the front end portion 45 of the absorption core 50. Is easy to project the center of the width direction W to the front side more than the side portion of the width direction W. Therefore, a force from the absorption core 50 toward the front side is more likely to be applied to the region that is arranged so as to overlap with the central region CR in the front-rear direction L. By providing the overlapping region DR in the region, the deformation caused by the absorbing core 50 can be absorbed by the front end portion 45 of the absorbent main body 40, and the deformation of the exterior body 15 can be further suppressed.

More preferably, the overlapping region DR may be arranged so as to overlap with the entire width direction W of the absorption core 50 in the front-rear direction. By providing the overlapping region DR in the region arranged so as to overlap the width direction W of the absorption core 50 in the front-rear direction, the deformation caused by the absorption core 50 is absorbed by the front end portion 45 of the absorbent body 40, and the deformation of the exterior body 15 is caused. It can be more suppressed.

The front edge of the body non-joining region NB and the front edge of the sheet non-joining region NS may coincide with the front edge 40F of the absorbent body 40 and may be located posterior to the front edge 40F of the absorbent body 40. May be good. Preferably, the main body non-joining region NB and the sheet non-joining region NS may be provided on the front end edge of the absorbent main body 40. Since both the main body non-joining region NB and the sheet non-joining region NS are provided on the front end edge of the absorbent main body 40, it is more easily deformed. Deformation by the absorbing core 50 is absorbed by the front end edge of the absorbent main body 40, it becomes difficult for the absorbent main body 40 to push up the front exterior body 20, and the deformation of the exterior body 15 can be further suppressed.

The trailing edge of the main body non-joining region NB and the trailing edge of the sheet non-joining region NS may be located on the front side of the front end edge 50F of the absorption core 50, or on the rear side of the front end edge 50F of the absorption core 50. It may be located or may coincide with the front edge 50F of the absorption core 50. The outer edge of the main body non-joining region NB and the outer edge of the sheet non-joining region NS may coincide with the outer edge 40E of the absorbent main body 40, or may be inside the outer edge 40E of the absorbent main body 40 in the width direction W. It may be located in.

The absorbent article 10 may have a sheet bonding region AS in which the liquid impermeable sheet 41 and the main body sheet 42 are bonded on the inseam region side of the sheet non-bonding region NS. The sheet bonding region AS is adjacent to the sheet non-bonding region NS in the front-rear direction. The sheet joining region AS is a region for joining unjoined sheets in the sheet non-joining region NS.

In the form in which the absorption core 50 is sandwiched in the thickness direction and the sheet non-joining region NS is provided between the absorption core 50 and the sheet straddling the front end portion 45, the inseam region side of the sheet non-bonding region NS is provided. The inner edge, i.e., the anterior edge of the sheet junction region AS, may be located anterior to the absorption core 50. The inner edge of the sheet non-joining region NS on the inseam region side may be arranged in front of the absorption core 50. Since the inner edge of the sheet non-joining region NS on the inseam region side is located on the front side of the absorption core 50, the sheet joining region AS is provided on the front side of the absorption core 50. The region where the liquid-impermeable sheet 41 and the main body sheet are joined can prevent the absorbent material constituting the absorbent core 50 from leaking to the outside of the absorbent main body 40.

The sheet impermeable region NS includes a region where the liquid impermeable sheet 41 is not bonded to the first main body sheet 42A, a region where the liquid impermeable sheet 41 is not bonded to the second main body sheet 42B, and a liquid impermeable sheet 41. It may be any of the regions not joined to the first main body sheet 42A and the second main body sheet 42B. Preferably, in the sheet non-bonding region NS, the liquid impermeable sheet 41 does not have to be bonded to the first main body sheet 42A and does not have to be bonded to the second main body sheet 42B. Since the liquid impermeable sheet 41 is not joined to the first main body sheet and the second main body sheet, the liquid impermeable sheet 41 is more easily deformed. Therefore, the front end portion 45 of the absorbent main body 40 is more easily deformed, the deformation of the exterior body 15 from being lifted can be suppressed, and the positional deviation of the exterior body 15 in the front waist circumference region can be suppressed.

The positional relationship between the sheet non-joining region NS and the main body non-joining region NB in the front-rear direction is not limited. The front end edge of the sheet non-joining region NS may be on the front side of the front end edge of the main body non-joining region NB, or may be on the posterior side of the front end edge of the main body non-joining region NB. The trailing edge of the sheet non-joining region NS may be on the front side of the trailing edge of the main body non-joining region NB, or may be on the posterior side of the trailing edge of the main body non-joining region NB. Preferably, the sheet non-joining region NS may extend toward the inseam region side from the main body non-joining region NB. Many of the liquid-impermeable sheets 41 have higher rigidity than the liquid-permeable sheets, and the sheet non-bonding region NS tends to have an effect of lowering the rigidity as compared with the main body non-bonding region NB. Since the sheet non-joining region NS extends toward the inseam region from the main body non-joining region NB, it is easier to obtain the effect of absorbing the deformation of the absorption core 50 by the deformation of the absorbent main body 40.

The positional relationship between the sheet non-joining region NS and the main body non-joining region NB in the width direction W is not limited. The outer edge of the sheet non-joining region NS may be outside the outer edge of the main body non-joining region NB, or may be inside the outer edge of the main body non-joining region NB. Preferably, the sheet non-joining region NS may extend outward in the width direction W from the main body non-joining region NB. Since the sheet non-joining region NS extends outward in the width direction from the main body non-joining region NB, the rigidity can be reduced over the entire width direction of the main body non-joining region NB. Deformation of the outer body can be further suppressed by the deformation of the overlapping region of the front end portion of the absorbent body.

The absorbent article 10 may have a cover non-joining region NC in which the absorbent main body 40 and the cover sheet 27 are not joined, and a cover joining region AC in which the absorbent main body 40 and the cover sheet 27 are joined. The cover non-joining region NC may be a region in which the sheet arranged to face the cover sheet 27 and the cover sheet 27 are not joined among the sheets constituting the absorbent main body 40. The cover joining region AC may be a region in which the sheet arranged to face the cover sheet 27 and the cover sheet 27 are joined among the sheets constituting the absorbent main body 40. The cover non-joining region NC is a region where the rigidity is lower than the region where the cover sheet and the absorbent main body 40 are joined, and the region is easily deformed.

The sheet non-joining region NS may be arranged so as to overlap at least a part of the cover non-joining region NC in the thickness direction. The front end portion 45 of the absorbent body 40 is not joined to the cover sheet and is easily moved with respect to the cover sheet. Even if the cover sheet located on the side facing the skin of the wearer is in close contact with the skin and the cover sheet is not easily deformed, the front end portion 45 of the absorbent body 40 is easily deformed and the exterior body 15 is deformed to be lifted. It can be suppressed and the misalignment of the exterior body 15 in the front waist circumference area and the rear waist circumference region can be suppressed.

Further, the cover bonding region AC may be arranged so as to overlap a part of the sheet non-bonding region NS in the thickness direction. A region where the sheet non-bonding region NS and the cover bonding region AC overlap and a region where the sheet non-bonding region NS and the cover bonding region AC do not overlap may be provided. The rigidity is different between the region where the sheet non-bonding region NS and the cover bonding region AC overlap and the region where the sheet non-bonding region NS and the cover bonding region AC do not overlap. When a force is received from the absorption core 50 by the two regions, the force is gradually deformed, and the force received from the absorption core 50 is more easily absorbed. Therefore, the force toward the front side from the absorbent main body 40 can be difficult to be transmitted by the front exterior body 20, and the misalignment of the front exterior body 20 can be suppressed.

The cover bonding region AC may be arranged so as to overlap the sheet bonding region AS in the thickness direction T. The region where the cover bonding region AC and the sheet bonding region AS overlap is compared with the region where the cover bonding region AC and the sheet non-bonding region NS overlap or the region where the cover non-bonding region NC and the sheet non-bonding region NS overlap. And the rigidity is high. Since the highly rigid region is provided on the inseam region side of the sheet non-joining region NS, a force from the absorption core 50 toward the outside in the front-rear direction is applied to the sheet material and the cover sheet 27 via the highly rigid region. Can be dispersed. Both the sheet material and the cover sheet 27 are more likely to absorb the force received from the absorption core 50. Therefore, the force toward the front side from the absorbent main body 40 can be difficult to be transmitted by the front exterior body 20, and the misalignment of the front exterior body 20 can be suppressed.

The absorbent article 10 may have an exterior non-joining region NE. The exterior non-joining region NE is a region among the first exterior sheet 25, the second exterior sheet 26, and the cover sheet 27, in which two sheets are not joined to each other. The exterior non-joining region NE may be provided on the front side of the front end edge 40F of the absorbent main body 40. Since the exterior non-joining region is provided on the front side of the front end edge of the absorbent body, the rigidity of the front side of the absorbent body is lower than that of the configuration in which all the exterior sheets are joined to each other. Become. When the front end edge of the absorbent body moves toward the outside in the front-rear direction, the exterior non-joining region NE is deformed to absorb the force, and it is possible to suppress the deformation of the entire front exterior body. Therefore, it is possible to suppress the displacement of the exterior body in the front waist circumference region and continue to cover the wearer's abdomen.

An exterior bonding region AE in which exterior sheets are bonded to each other may be provided on the front side of the exterior non-bonding region NE. The exterior joining region AE may include a region where the cover sheet 27 is joined to the exterior sheet and a region where the exterior sheets are joined to each other. The exterior joint region AE tends to have higher rigidity than the exterior non-join region NE. Further, the region in which the absorbent main body 40 is arranged also tends to have higher rigidity than the exterior non-joining region NE. The exterior non-joining region NE is sandwiched in the front-rear direction L by a region having high rigidity, and when the front end edge 40F of the absorbent main body 40 moves toward the front side, it is more deformed to easily absorb the force. Therefore, the displacement of the front exterior body can be further suppressed.

Although the present invention has been described in detail using the above-described embodiments, it is clear to those skilled in the art that the present invention is not limited to the embodiments described in the present specification. The present invention can be implemented as modifications and modifications without departing from the spirit and scope of the present invention as determined by the description of the scope of claims. Therefore, the description of the present specification is for the purpose of exemplary explanation and does not have any limiting meaning to the present invention.

It is possible to provide an absorbent article capable of suppressing the displacement of the exterior body in the front waist circumference area by moving the wearer's legs.

10 Absorbent article 15 Exterior body 20 Front exterior body 27 Cover sheet 30 Rear exterior body 40 Absorbent body 41 Liquid opaque sheet 42A First body sheet (main body sheet)
42B 2nd main body sheet (main body sheet)
45 Front end 50 Absorption core 60 Side joint AC Cover joint area AE Exterior joint area AS Sheet joint area DR Overlapping area NB Main body non-join area NC Cover non-join area NE Exterior non-join area NS Sheet non-join area S1 Front waist circumference area S2 Rear waist area S3 Inseam area L Front-back direction W Width direction

Claims (9)

In the front-back direction and
The width direction orthogonal to the front-back direction and
Front waist area and
Rear waist area and
The inseam area arranged between the front waist area and the rear waist area,
Absorbent body arranged across the inseam area, the front waist area and the rear waist area,
An absorbent article comprising a front exterior body arranged on the non-skin facing surface side of the absorbent body in the front waistline region.
The absorbent body has an absorbing core and a front end extending forward of the absorbing core.
At least a liquid-impermeable sheet and a liquid-permeable body sheet that overlaps the liquid-impermeable sheet in the thickness direction are arranged at the front end portion of the absorbent body.
The sheet non-joining region where the liquid impermeable sheet and the main body sheet are not joined,
A main body non-joining region where the absorbent main body and the front exterior body are not joined is provided.
The front end portion of the absorbent main body is provided with an overlapping region where the sheet non-joining region and the main body non-joining region overlap .
An absorbent article in which at least a part of the overlapping region is arranged so as to overlap the absorbing core in the anteroposterior direction . The absorbent body has a central region located in the center of the absorbent core in the width direction, which is a region obtained by dividing the total length of the absorbent core in the width direction into three equal parts.
The absorbent article according to claim 1 , wherein the overlapping region is arranged so as to overlap the central region in the front-rear direction. The absorbent article according to claim 1 or 2 , wherein the overlapping region is arranged so as to overlap the entire area of the absorption core in the width direction in the front-rear direction. In the front-back direction and
The width direction orthogonal to the front-back direction and
Front waist area and
The rear waist area and
The inseam area arranged between the front waist area and the rear waist area,
Absorbent body arranged across the inseam area, the front waist area and the rear waist area,
An absorbent article comprising a front exterior body arranged on the non-skin facing surface side of the absorbent body in the front waistline region.
The absorbent body has an absorbing core and a front end extending forward of the absorbing core.
At least a liquid-impermeable sheet and a liquid-permeable body sheet that overlaps the liquid-impermeable sheet in the thickness direction are arranged at the front end portion of the absorbent body.
The sheet non-joining region where the liquid impermeable sheet and the main body sheet are not joined,
A main body non-joining region where the absorbent main body and the front exterior body are not joined is provided.
The front end portion of the absorbent main body is provided with an overlapping region where the sheet non-joining region and the main body non-joining region overlap.
The non-joining region of the main body is an absorbent article provided on the front end edge of the absorbent main body. In the front-back direction and
The width direction orthogonal to the front-back direction and
Front waist area and
The rear waist area and
The inseam area arranged between the front waist area and the rear waist area,
Absorbent body arranged across the inseam area, the front waist area and the rear waist area,
An absorbent article comprising a front exterior body arranged on the non-skin facing surface side of the absorbent body in the front waistline region.
The absorbent body has an absorbing core and a front end extending forward of the absorbing core.
At least a liquid-impermeable sheet and a liquid-permeable body sheet that overlaps the liquid-impermeable sheet in the thickness direction are arranged at the front end portion of the absorbent body.
The sheet non-joining region where the liquid impermeable sheet and the main body sheet are not joined,
A main body non-joining region where the absorbent main body and the front exterior body are not joined is provided.
The front end portion of the absorbent main body is provided with an overlapping region where the sheet non-joining region and the main body non-joining region overlap.
The sheet non-joining region is an absorbent article extending outward in the width direction from the main body non-joining region. In the front-back direction and
The width direction orthogonal to the front-back direction and
Front waist area and
The rear waist area and
The inseam area arranged between the front waist area and the rear waist area,
Absorbent body arranged across the inseam area, the front waist area and the rear waist area,
An absorbent article comprising a front exterior body arranged on the non-skin facing surface side of the absorbent body in the front waistline region.
The absorbent body has an absorbing core and a front end extending forward of the absorbing core.
At least a liquid-impermeable sheet and a liquid-permeable body sheet that overlaps the liquid-impermeable sheet in the thickness direction are arranged at the front end portion of the absorbent body.
The sheet non-joining region where the liquid impermeable sheet and the main body sheet are not joined,
A main body non-joining region where the absorbent main body and the front exterior body are not joined is provided.
The front end portion of the absorbent main body is provided with an overlapping region where the sheet non-joining region and the main body non-joining region overlap.
The main body sheet includes a first main body sheet arranged on the skin facing surface side of the liquid impermeable sheet and a second main body sheet arranged on the non-skin facing surface side of the liquid impermeable sheet. death,
In the sheet non-bonding region, the liquid impermeable sheet is an absorbent article that is not bonded to the first main body sheet and is not bonded to the second main body sheet. In the front-back direction and
The width direction orthogonal to the front-back direction and
Front waist area and
The rear waist area and
The inseam area arranged between the front waist area and the rear waist area,
Absorbent body arranged across the inseam area, the front waist area and the rear waist area,
An absorbent article comprising a front exterior body arranged on the non-skin facing surface side of the absorbent body in the front waistline region.
The absorbent body has an absorbing core and a front end extending forward of the absorbing core.
At least a liquid-impermeable sheet and a liquid-permeable body sheet that overlaps the liquid-impermeable sheet in the thickness direction are arranged at the front end portion of the absorbent body.
The sheet non-joining region where the liquid impermeable sheet and the main body sheet are not joined,
A main body non-joining region where the absorbent main body and the front exterior body are not joined is provided.
The front end portion of the absorbent main body is provided with an overlapping region where the sheet non-joining region and the main body non-joining region overlap.
The liquid-impermeable sheet and the main body sheet are arranged so as to straddle the region overlapping the absorption core and the front end portion in the thickness direction, and are arranged so as to sandwich the absorption core in the thickness direction. Ori,
A sheet bonding region in which the liquid-impermeable sheet and the main body sheet are bonded is provided on the inseam region side of the sheet non-bonding region.
An absorbent article in which the inner edge of the sheet non-joining region on the inseam region side is arranged on the front side of the absorption core. In the front-back direction and
The width direction orthogonal to the front-back direction and
Front waist area and
The rear waist area and
The inseam area arranged between the front waist area and the rear waist area,
Absorbent body arranged across the inseam area, the front waist area and the rear waist area,
An absorbent article comprising a front exterior body arranged on the non-skin facing surface side of the absorbent body in the front waistline region.
The absorbent body has an absorbing core and a front end extending forward of the absorbing core.
At least a liquid-impermeable sheet and a liquid-permeable body sheet that overlaps the liquid-impermeable sheet in the thickness direction are arranged at the front end portion of the absorbent body.
The sheet non-joining region where the liquid impermeable sheet and the main body sheet are not joined,
A main body non-joining region where the absorbent main body and the front exterior body are not joined is provided.
The front end portion of the absorbent main body is provided with an overlapping region where the sheet non-joining region and the main body non-joining region overlap.
It has a cover sheet arranged on the skin facing surface side of the absorbent body, and has a cover sheet.
The sheet non-joining region is an absorbent article that is arranged so as to overlap at least a part of the cover non-joining region where the absorbent body and the cover sheet are not joined in the thickness direction. The absorbent article according to any one of claims 1 to 8 , wherein the sheet non-joining region extends toward the inseam region side from the main body non-joining region.

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