JP2019118472A - Absorbent article - Google Patents

Abstract

To provide an absorbent article which ensures an absorption area in a front waist area to suppress leakage.SOLUTION: An absorbent article includes an absorbent body (40) which is arranged to extend over a crotch area (S3), a front waist area (S1), and a back waist area (S2) and an exterior body (15) which is arranged at least in the front waist area and the back waist area in a non-skin-contacting side of the absorbent body. In a front end part of the back waist area, a back non-joined region (NR) where an outer part of the absorbent body and the exterior body are not joined is provided, and in a back end part of the front waist area, a front joined region (FA) where the outer part of the absorbent body and the exterior body are joined is provided.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an absorbent article such as a disposable diaper.

  The disposable diaper described in Patent Document 1 is disposed on the skin side of the exterior body disposed in the front waist area and the back waist area, and straddles the front waist area, the back waist area, and the crotch area. And the absorber disposed in The absorber and the package are joined together in the joining area. The bonding area is a first bonding area provided over the entire width direction of the absorber at the outer end in the front-rear direction of the absorber, and a second bonding area arranged on the crotch area side of the first bonding area. And. The second bonding region is not provided in the entire width direction of the absorber. A non-joining area where the absorber and the outer package are not joined is provided outside the second joining area in the width direction. The non-joining area is provided at the rear end of the front waist area.

JP, 2008-194161, A

  Generally, the position at which the wearer's leg is pinched is biased to the front side relative to the longitudinal center of the absorbent article. Therefore, the rear end of the front waist area is easily pinched by the legs. In the absorbent article described in Patent Document 1, since the non-joining area is provided at the rear end of the front waist area, the absorber may be deformed inward in the width direction when sandwiched by the legs. . As a result, the width of the absorber becomes short, and it is difficult to secure the absorption area on the front waist region side, which may cause leakage.

  Then, the absorptive article which secures the absorption area in a front waist area, and can control leak is desired.

  In the absorbent article according to one aspect, a crotch disposed between the front and rear direction, the width direction orthogonal to the front and rear direction, a front waist area, a rear waist area, the front waist area, and the rear waist area Area, the absorbent main body disposed across the crotch area, the front waist area and the rear waist area, and at least the front waist area and the back waist area on the non-skin surface side of the absorbent main body And the outer body of the absorbent main body and the non-bonded area after the outer body is not joined, at the front end of the back waist area. The rear end portion of the front waist area is provided with a front bonding area in which the outer side portion of the absorbent main body and the exterior body are bonded.

It is a top view of the absorptive article concerning an 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 the figure which showed typically the mounting state of the absorbent article which concerns on embodiment. It is the figure which showed typically the mounting state of the absorbent article which concerns on embodiment.

(1) Outline of Embodiment At least the following matters will become clear by the description of the present specification and the attached drawings.
In the absorbent article according to one aspect, a crotch disposed between the front and rear direction, the width direction orthogonal to the front and rear direction, a front waist area, a rear waist area, the front waist area, and the rear waist area Area, the absorbent main body disposed across the crotch area, the front waist area and the rear waist area, and at least the front waist area and the back waist area on the non-skin surface side of the absorbent main body And the outer body of the absorbent main body and the non-bonded area after the outer body is not joined, at the front end of the back waist area. The rear end portion of the front waist area is provided with a front bonding area in which the outer side portion of the absorbent main body and the exterior body are bonded.

  At the rear end of the front waist area, the outer part of the absorbent main body and the outer package are joined. Therefore, when a force is applied to the rear end of the front waist area by the legs or the like of the wearer during wearing, the absorbent main body in the front waist area is less likely to be deformed in the width direction. Therefore, it is easy to ensure the length of the width direction of the absorptive main part in the front waist area, and secure the absorption area in the front waist area side. Further, at the front end of the rear waist region, the outer side of the absorbent main body and the outer package are not joined. Therefore, at the front end of the rear waist region, the outer package is movable with respect to the absorbent main body, and the leg opening can be deformed to expand. Therefore, when inserting a leg at the time of wearing, it is easy to insert a leg into a leg opening easily smoothly. In addition, when the wearer moves the leg when worn, the leg opening can be deformed so that the wearer can move the leg smoothly.

  According to a preferred aspect, a first width elastic member that can expand and contract in the width direction may be disposed in the rear non-joining region.

  According to this aspect, the front end portion of the back waist area is contracted in the width direction by the first width elastic member, and it becomes easy to fit the wearer's leg. At this time, at the front end portion of the back waist area, the leg opening can be deformed to expand, and the contraction of the first width elastic member does not fit the leg too much, and the deterioration of the wearing feeling can be suppressed. It is compatible with the fit to the leg and the ease of movement of the leg.

According to a preferred aspect, the rear non-joining area extends rearward from a front end edge of the rear waist area.
The length in the front-rear direction of the rear non-joining region may be 5 mm or more and 20 mm or less.

  The range of 5 mm or more and 20 mm or less from the front end edge of the back waist area to the rear is a region where a force is particularly easily applied by the movement of the leg when inserting the leg or moving the leg. Since the non-joining area is provided in the range, the wearer can easily insert the leg smoothly at the time of wearing, and can smoothly move the leg at the time of wearing.

According to a preferred aspect, the absorbent article further comprises a side joint that joins the outer side of the front waist area and the outer side of the rear waist area.
The range in the front-rear direction of the rear non-joining region may be a range of up to 30% with respect to the entire region in the front-rear direction of the side joint from the end edge on the crotch region side of the side joint toward the rear.

  The range of up to 30% of the side joint from the end of the crotch to the rear with respect to the entire area of the side joint in the back and forth direction is particularly exerted by leg movement when inserting the leg or moving the leg It is an easy area. Since the non-joining area is provided in the range, the wearer can easily insert the leg smoothly at the time of wearing, and can smoothly move the leg at the time of wearing.

According to a preferred embodiment, the absorbent body comprises an absorbent core,
A first rear bonding area in which the absorbent main body and the outer package are bonded is provided on the inner side in the width direction than the rear non-bonding area.
The boundary between the rear non-junction region and the first rear junction region may be located outside the lateral edge of the absorbent core in the width direction.

  When the exterior body is pulled outward in the width direction at the time of wearing, the absorbent main body is pulled outward in the width direction via the exterior body. At this time, the outer edge of the absorbent core overlaps the first rear joint region where the outer package and the absorbent main body are joined. Therefore, when the exterior body is pulled outward in the width direction at the time of wearing, the outer edge of the absorbent core can also be pulled outward in the width direction. The length in the width direction of the absorbent core in the rear waist region can be easily secured, and leakage can be further suppressed.

  According to a preferred embodiment, a second rear bonding area in which the absorbent main body and the outer package are bonded may be provided on the rear side of the rear non-bonding area.

  By bonding the outer package and the absorbent main body in the second rear bonding area provided on the rear side of the rear non-bonding area, the outer package is flipped with respect to the absorbent main body, or the absorbent main body is inward in the width direction. It is possible to suppress the trouble of falling down. The exterior body and the absorbent body can be properly applied to the body of the wearer to further suppress leakage.

  According to a preferred aspect, the exterior body in the rear waist region is stretchable in the width direction, and the length in the width direction of the second rear bonding region is greater than the length in the width direction of the rear non-bonding region. May be long.

  The length in the width direction of the second post-joining region where the exterior body and the absorbent main body are joined is longer than the length in the width direction of the post non-joining region where the exterior body and the absorbent main body are not joined It is easy to transmit contraction in the width direction to the absorbent body. Therefore, when the exterior body is pulled to the outside in the width direction at the time of wearing, the absorbent main body can also be pulled to the outside in the width direction. Even in the rear waist region, the length of the absorbent main body in the width direction can be easily secured, and leakage can be further suppressed.

According to a preferred aspect, the exterior body of the rear waist region is stretchable in the width direction,
The absorbent main body includes a front and rear elastic member disposed on the outer side of the absorbent main body and expandable in the front and rear direction,
The effective length portion of the front and rear elastic member may overlap the second rear joint region in the thickness direction.

  The front and rear elastic members are disposed on the outer side of the absorbent main body and disposed around the legs of the wearer. Since the effective length portion of the front and rear elastic member overlaps the second rear joint region in the thickness direction, the contraction in the width direction of the exterior body in the rear waist region and the contraction in the front and rear direction by the front and rear elastic member are easily interlocked. The portion contracted by the front and rear elastic members can easily rise to the wearer side, and lateral leakage of excrement in the rear waist region can be suppressed.

  According to a preferable aspect, a second width elastic member that can expand and contract in the width direction may be disposed in a region where the effective length portion of the front and rear elastic member and the second rear bonding region overlap.

  Since the second width elastic member is disposed in a region overlapping the effective length portion of the front and rear elastic member and the second rear joint region, contraction in the width direction by the second width elastic member and contraction in the front and rear direction by the front and rear elastic member Easy to work together. The portion contracted by the front and rear elastic members is more likely to stand up on the wearer side, and lateral leakage of excrement in the rear waist region can be further suppressed.

  According to a preferred aspect, the exterior body of the front waist region is stretchable in the width direction, and the absorbent main body is disposed on the outer side of the absorbent main body and is stretchable in the front-rear direction. A front and rear elastic member may be provided, and an effective length portion of the front and rear elastic member may overlap with the front bonding area in the thickness direction.

  Since the effective length portions of the front and rear elastic members overlap the front joint region, the contraction in the width direction of the exterior body in the front waist region and the contraction in the front and rear direction by the front and rear elastic members are easily interlocked. The portion contracted by the front and rear elastic members can easily rise to the wearer side, and lateral leakage of the excrement in the front waist area can be suppressed.

  According to a preferred aspect, a third width elastic member that can expand and contract in the width direction may be disposed in a region where the effective length portion of the front and rear elastic members and the front bonding region overlap.

  According to this aspect, since the third width elastic member is disposed in the area overlapping the effective length portion of the front and rear elastic member and the front joint area, the contraction in the width direction by the third width elastic member and the front and back by the front and rear elastic member Contraction of direction is easy to interlock. The portion contracted by the front and rear elastic members is more likely to rise on the wearer side, and lateral leakage of excrement can be further suppressed.

  According to a preferred aspect, the widthwise length of the absorbent main body at the front end edge of the rear waist area is longer than the length of the absorbent main body at the rear end edge of the front waist area You may

  Generally, the distance between the tops of the bulges of the wearer's buttocks is greater than the distance between the inguinal grooves. The length in the width direction of the absorbent main body in the back waist area is longer than the length in the width direction of the absorbent main body in the front waist area, so it is easy to appropriately cover the bulge of the buttocks of the wearer. By appropriately covering the buttocks, lateral leakage can be suppressed.

According to a preferred aspect, the absorbent article further includes a side joint that joins the outer side of the front waist area and the outer side of the rear waist area.
The rear waist region may have a buttocks cover that extends further toward the crotch region than the side joint portion.

  The outer package is not joined to the outer side of the absorbent main body at the front end of the back waist area, and may be pulled up to the rear due to the movement of the legs of the wearer. By providing the buttocks cover, it is possible to keep covering the buttocks even when the front end of the rear waist region is pulled up backward, and to suppress the lateral leakage from the buttocks.

(2) Overall Schematic Configuration of Absorbent Article Hereinafter, the absorbent article according to the embodiment will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted 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, specific dimensions and the like should be determined in consideration of the following description. In addition, parts having different dimensional relationships and proportions may be included between the drawings.

  The absorbent article may be in the form of a tape or in the form of a pant. The absorbent article may be a disposable diaper or a shorts-type sanitary napkin. The absorbent article of the first embodiment is a pants-type disposable diaper. FIG. 1 is a schematic plan view of a disposable diaper 10 according to the present embodiment. The schematic plan view shown in FIG. 1 shows an expanded state in which the absorbent article 10 is expanded to a state in which no wrinkles are formed in a state where the side joint portion 60 described later is expanded.

  The absorbent article 10 has a longitudinal direction L and a width direction W orthogonal to each other. The front-rear direction L is defined by the direction extending to the body front side and the body rear side. In other words, the front-rear direction L is a direction extending in the front-rear direction in the developed absorbent article 10. In addition, the absorbent article 10 has a thickness direction T orthogonal to both the longitudinal direction L and the width direction W.

  The absorbent article 10 has a front waist area S1, a back waist area S2, and a crotch area S3. The front waist area S1 is an area facing the front waist area (belly region) of the wearer. The back waist area S2 is an area facing the back waist (back) of the wearer. The crotch region S3 is a region located under the wearer's crotch and disposed between the front waist region S1 and the rear waist region S2.

  In the present embodiment, the absorbent article 10 may have the exterior body 15 and the absorbent main body 40. The exterior body 15 is disposed at least on the front waist area S1 and the back waist area S2 on the non-skin surface side of the absorbent main body 40. 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 disposed in the front waist area S1. The rear side exterior body 30 is an exterior body which is separated from the front side exterior body 20 in the front-rear direction L and is disposed in the rear waist area S2.

  In the front waist area S1 and the rear waist area S2, the exterior body 15 extends outside the absorbent main body 40 in the width direction W. In the crotch region S <b> 3, the absorbent main body 40 extends outside the exterior body 15 in the width direction W. The boundary on the crotch region side of the front waist region S1 is the end edge on the crotch region side of the region where the front exterior body 20 extends outside the absorbent main body 40 in the width direction W, and the crotch region of the rear waist region S2 The boundary of the side is the crotch region side edge of the region where the rear side exterior body 30 extends to the outer side in the width direction W than the absorbent main body 40. In the absorbent article 10 according to the present embodiment, the front exterior body 20 is disposed only in the front waist area S1, and the front end edge 20F of the front exterior body 20 corresponds to the front end edge S1F of the front waist area S1. The rear end 20R of the front exterior body 20 corresponds to the rear end S1R of the front waist area S1. Further, the rear exterior body 30 is disposed only in the rear waist area S2, and the front end edge 30F of the rear exterior body 30 corresponds to the front end edge S2F of the rear waist area S2, and the rear end edge of the rear exterior body 30 30R corresponds to the rear end edge S2R of the rear waist region S2.

  The front exterior body 20 and the rear exterior body 30 may be made of, for example, a non-woven sheet. The front exterior body 20 and the rear exterior body 30 each have an exterior skin sheet 25 located on the skin side, and an exterior non-skin surface sheet 26 located on the non-skin surface side of the exterior skin sheet 25. Good.

  A side joint portion 60 may be provided in which the outer side of the front waist area S1 in the width direction W and the outer side of the rear waist area S2 in the width direction W are joined. Here, FIG. 1 shows a state in which bonding at the side bonding portion 60 is released, and the absorbent article 10 is developed. The side joint portion 60 may extend in the front-rear direction L in each of the front exterior body 20 and the rear exterior body 30. A buttocks cover 35 may be provided in the back waist area S <b> 2 so as to extend to the crotch area S <b> 3 side of the side joint portion 60. The buttocks cover 35 is a part of the rear exterior body 30 and is a portion that extends further toward the crotch region S3 than the side joint portion 60.

  The outer side in the present invention is a portion which occupies a certain range in the width direction W including the outer edge in the width direction W, and the outer side is an outer edge in the width direction W. The inner portion in the present invention is a portion which 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. In the present invention, the front end portion and the rear end portion 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 end includes a front end edge and a rear end edge.

  As shown in FIG. 4, with the side joint portion 60 formed, the absorbent article 10 has a waistline opening 71 through which the wearer's trunk passes and a pair of the wearer's legs inserted. The leg-surrounding opening 72 is formed. The waist opening 71 may be defined by a front end edge S1F of the front waist region S1 and a rear end edge S2R of the rear waist region S2. Further, the leg-surrounding opening 72 extends to the outside of the absorbent body 40 in the width direction W from the rear end edge 20R of the front exterior body 20 which extends to the outside of the absorbent body 40 in the width direction W. It may be defined by front end edge 30F of back side exterior body 30, and outer edge 40E of absorptive main part 40 in crotch area S3.

  The absorbent main body 40 is disposed across the front exterior body 20 and the rear exterior body 30 on the skin surface side of the front exterior body 20 and the rear exterior body 30. That is, the absorbent main body 40 extends over the front waist area S1, the back waist area S2, and the crotch area S3. The absorbent main body 40 may be configured separately from the front exterior body 20 and the rear exterior body 30.

  The length W402 of the widthwise direction W of the absorbent main body 40 at the front end S2F of the back waistline S2 may be longer than the length W401 of the widthwise W of the absorbent main body 40 at the rear edge S1R of the front waistline S1. . Generally, the distance between the tops of the bulges of the wearer's buttocks is greater than the distance between the inguinal grooves. Since the length W402 of the absorbent main body 40 in the width direction W at the front end S2F of the rear waist area S2 is longer than the length W401 of the absorbent body 40 at the rear end S1R of the front waist area S1, It is easy to cover the bulge of the wearer's buttocks appropriately. By appropriately covering the buttocks, lateral leakage can be suppressed. In addition, since the length in the width direction W of the absorbent main body 40 at the rear end edge of the front waist area S1 is relatively short, the size of the leg opening at the front waist area side can be increased, It becomes easy to move.

  Absorbent body 40 includes at least absorbent core 50. The absorbent core 50 may comprise, for example, ground pulp or superabsorbent polymer (SAP), or mixtures thereof. The absorbent core 50 is disposed at least in the crotch region S3. Preferably, the absorbent core 50 may extend from the front waist area S1 to the rear waist area S2 in the front-rear direction L. The absorbent core 50 may be covered by a core wrap. Furthermore, the absorbent main body 40 may have a main skin facing sheet 41 located on the skin facing side of the absorbent core 50 and a main non-skin facing sheet 42 located on the non-skin facing side of the absorbent core 50. . The main skin sheet 41 may cover the absorbent core 50 on the skin surface side of the absorbent core 50. The main non-skin side sheet 42 may cover the absorbent core 50 on the non-skin side of the absorbent core 50.

  The main skin sheet 41 may be made of, for example, a liquid-permeable sheet such as a non-woven fabric or a perforated plastic film. The main skin sheet 41 may be configured of one sheet. Instead of this, the main skin sheet 41 may be formed of a laminated sheet in which a plurality of sheets are laminated to one another.

  The main non-skin sheet 42 may include a liquid-impervious sheet. The main body non-skin sheet 42 may be configured of one sheet. Instead of this, the main non-skin facing sheet 42 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 liquid impermeability.

  The absorbent core 50 is disposed at least in the crotch region S3. Preferably, the absorbent core 50 may extend from the front waist area S1 to the rear waist area S2 in the front-rear direction L. The absorbent core 50 may be wrapped by a core wrap.

  The absorbent main body 40 may have a front and rear elastic member 65 which is disposed on the outer side of the absorbent main body 40 and which is stretchable in the front and rear direction L. A plurality of longitudinal elastic members 65 may be provided at intervals in the width direction W. The front and rear elastic members 65 may be disposed outside the absorbent core 50 in the width direction W, and may be disposed along the leg opening 72. The longitudinal elastic member 65 may be made of, for example, a thread rubber that can expand and contract in the longitudinal direction L, or an elastic sheet that can expand and contract in the longitudinal direction L. Instead of this, the front and rear elastic member 65 may be constituted by the side sheet itself which is constituted, for example, by a stretchable sheet. The front and rear elastic member 65 of the present embodiment is made of a thread rubber, and is disposed between the main surface sheet 41 and the non-main surface sheet 42 in the thickness direction T.

  The front and rear elastic members 65 are arranged in an extended state at the outer side of the absorbent main body 40. In the region where the front and rear elastic members 65 are arranged in the extended state, a force that contracts in the front and rear direction L acts on the absorbent main body 40, and in the region where the front and rear elastic members 65 are not arranged in the extended state, the absorbent main body 40 is On the other hand, the force to contract in the back and forth direction L does not work. In the present specification, the length in the front-rear direction of the region where the force that contracts in the front-rear direction L acts is also referred to as the “effective length” of the front-rear elastic member 65. The effective length portion is a portion where wrinkles are formed by contraction of the front and rear elastic member 65 in the natural state of the absorbent article. The range of the front-back direction L of the effective length part 66 of the front-back elastic member 65 is shown in FIG. The front end edge of the effective length portion 66 overlaps the front exterior body 20 in the thickness direction, and the rear end edge of the effective length portion 66 overlaps the rear exterior body 30 in the thickness direction.

  The front exterior body 20 and the rear exterior body 30 may be configured to be stretchable in the width direction W. The front exterior body 20 and the rear exterior body 30 may be configured to be stretchable by an elastic member such as a width elastic member described later, or may be stretchable by the stretchable exterior skin sheet 25 or the exterior non-skin sheet 26 May be configured.

  The front waist area S1 and the rear waist area S2 may be provided with width elastic members that can expand and contract in the width direction W. The width elastic member may have a first width elastic member 61 and a second width elastic member 62 provided in the rear waist area S2, and a third width elastic member 63 provided in the front waist area S1. The first width elastic member 61 is disposed rearward of the second width elastic member 62 in the rear waist region S2. A plurality of width elastic members may be provided at intervals in the front-rear direction L. The width elastic member may be made of, for example, thread rubber that can expand and contract in the width direction W, or an elastic sheet that can expand and contract in the width direction W. Instead of this, the width elastic member may be constituted by, for example, the absorbent main body 40 constituted by an expandable sheet or the exterior body 15 itself. The width elastic member may be provided to the absorbent main body 40 or may be provided to the exterior body 15. The first width elastic member 61 and the second width elastic member 62 of the present embodiment are provided in the rear exterior body 30, and the third width elastic member 63 is provided in the front exterior body 20. The width elastic member is made of thread rubber, and is disposed between the exterior skin sheet 25 and the exterior non-skin sheet 26 in the thickness direction T.

  The exterior body 15 and the absorbent main body 40 configured in this manner are joined in the joining region and not joined in the non-joining region. At the rear end of the front waist area S1, a front bonding area FA where the outer side of the absorbent main body 40 and the exterior body 15 are bonded is provided. At the rear end of the front waist area S1, the outer portion of the absorbent main body 40 and the exterior body 15 are joined. Therefore, the exterior body 15 can not move with respect to the absorbent main body 40 at the rear end of the front waist area S1.

  FIG.4 and FIG.5 is the figure which showed typically the mounting state of the absorbent article which concerns on embodiment. FIG. 4 is a view schematically showing a state in which the legs are extended, and FIG. 5 is a view schematically in a state in which the legs are bent. At the rear end of the front waist area S1 of the absorbent article according to the embodiment, the exterior body 15 is difficult to move relative to the absorbent main body 40, and the angle α between the exterior body 15 and the outer edge 40E of the absorbent main body 40 Is hard to change. Therefore, when power is applied to the rear end of the front waist area S1 by the legs or the like of the wearer when wearing, the absorbent main body 40 of the front waist area S1 is less likely to be deformed in the width direction W. Therefore, it is easy to ensure the length of the width direction W of absorptive main part 40 in front waist area S1, and to secure the absorption area in front waist area S1 side.

  The front joint area FA may be provided in an area extending forward from the rear end edge of the front waist area S1 and extending inward in the width direction W from the outer edge of the absorbent main body 40. The rear end edge of the front joint area FA may coincide with the rear end edge of the front waist area S1 or may be separated from the rear end edge of the front waist area S1. The front end edge of the front joint area FA may coincide with the front end edge of the front waist area S1, or may be separated from the front end edge of the front waist area S1. The front bonding area FA may extend from one outer edge to the other outer edge of the absorbent body 40. The outer edge of the front bonding area FA may coincide with the outer edge of the absorbent body 40, or may be located in the range of 3 to 5 mm inward from the outer edge of the absorbent body 40.

  At the front end of the back waist area S2, a rear non-joining area NR in which the outer side of the absorbent main body 40 and the exterior body 15 are not joined is provided. At the front end of the back waist area S2, the outer portion of the absorbent main body 40 and the exterior body 15 are not joined. Therefore, the exterior body 15 is movable relative to the absorbent main body 40 at the front end of the rear waist region S2.

  At the front end of the back waist area S2, the exterior body 15 is movable relative to the absorbent main body 40, and the angle β formed by the exterior body 15 and the outer edge 40E of the absorbent main body 40 can be changed. By deforming so as to increase the angle β, the leg-surrounding opening can be enlarged. In addition, movement of the absorbent main body 40 in the width direction W in the rear non-bonding region NR also increases the leg-surrounding opening 72. Therefore, when inserting a leg or moving a leg, the leg opening 72 can be enlarged, and the leg can be smoothly inserted or the leg can be moved smoothly.

  The rear non-bonding region NR may be provided in a region extending rearward from the front end edge 30F of the rear exterior body 30 and extending inward in the width direction W from the outer edge 40E of the absorbent main body 40. The front end edge of the rear non-joining region NR may coincide with the front end edge of the rear waist area S2, or may be separated from the front edge of the rear waist area S2. The rear end edge of the rear non-joining area NR may be located inside the front-rear direction L than the rear end edge of the rear waist area S2. The rear non-joining region NR may extend from one outer edge to the other outer edge of the absorbent body 40. The outer edge of the rear non-joining region NR may coincide with the outer edge of the absorbent body 40, or may be located in the range of 3 to 5 mm inward from the outer edge of the absorbent body 40.

  The inner edge of the rear non-joining region NR may be located at the same position or inside the outer edge of the absorbent main body 40 at the rear end edge of the front waist area S1 in the width direction W. The rear non-joining area NR functions as an area where the leg can be moved because the absorbent main body 40 and the exterior body are not joined. The inner edge of the rear non-joining region NR is located at the same position as or the inner side of the outer edge of the absorbent main body 40 at the rear end edge of the front waist area S1 in the width direction W. An area which can move the leg can be similarly secured by the opening and the leg opening on the side of the back waist area S2. While securing the area which covers the buttocks by the back waist area S2, it is possible to ensure the same area as the front waist area S1 and the back waist area S2 for securing the leg movement ease and ease of insertion.

  A first width elastic member 61 that can expand and contract in the width direction W may be disposed in the rear non-joining region NR. The first width elastic member 61 only needs to overlap the rear non-joining region NR in the thickness direction. By providing the first width elastic member 61, the front end portion of the back waist area S2 contracts in the width direction W, and it becomes easy to fit the leg of the wearer. At this time, the leg-surrounding opening 72 can be deformed so as to expand at the front end of the back waist area S2. Therefore, it can suppress that a leg fits too much by shrinkage | contraction of the 1st width | variety elastic member 61, and can suppress the deterioration of a wearing feeling. It is compatible with the fit to the leg and the ease of movement of the leg. Also, in order to ensure fit to the legs, the first width elastic member 61 may extend to the outside in the width direction W beyond the rear non-joining region NR.

  The length of the back non-joining region NR in the front-rear direction L may be 3 mm or more. By setting the length in the front-rear direction L of the rear non-joining region NR to be 3 mm or more, the ease of movement of the leg and the ease of inserting the leg can be improved. More preferably, the length of the back non-joining area NR in the front-rear direction L may be 5 mm or more and 20 mm or less. The range of 5 mm or more and 20 mm or less from the front end edge of the back waist area S2 to the rear is a region in which a force by the movement of the leg is particularly easily applied when inserting the leg or moving the leg. When the length in the front-rear direction L of the rear non-joining region NR is 3 mm or more, the wearer can more easily insert the leg more smoothly at the time of wearing, and can move the leg more smoothly at the time of wearing. More preferably, the length of the back non-junction region NR in the front-rear direction L may be 10 mm or more.

  The range of the back non-joining region NR in the front-rear direction L may be up to 30% with respect to the entire front-rear direction L of the side joint 60 from the end edge on the crotch region side of the side joint 60 toward the rear. The range up to 30% with respect to the entire region L in the front-rear direction L of the side joint 60 from the end edge of the crotch region side of the side joint 60 to the rear, especially when the leg is inserted or the leg is moved It is an area that is prone to Therefore, the wearer can easily insert the leg smoothly when wearing it, and can smoothly move the leg when wearing it.

  A buttocks cover 35 may be provided in the back waist area S <b> 2 so as to extend to the crotch area S <b> 3 side of the side joint portion 60. The exterior body 15 is not joined to the outer side of the absorbent main body 40 at the front end of the back waist area S2, and may be pulled up to the rear side by the movement of the leg of the wearer. By providing the buttocks cover 35, even when the front end portion of the rear waist area S2 is pulled up to the rear side, the buttocks can be continuously covered and lateral leakage from the buttocks can be suppressed.

  The effective length portion 66 of the front and rear elastic member 65 may overlap the front bonding area FA in the thickness direction. The front and rear elastic members 65 are disposed on the outer side of the absorbent main body 40 and are disposed around the legs of the wearer. Since the effective length portion 66 of the front and rear elastic member 65 overlaps the front bonding area FA, the contraction in the width direction W of the exterior body 15 and the contraction in the front and rear direction L by the front and rear elastic member 65 are easily interlocked. The portion contracted by the front and rear elastic members 65 can easily rise to the wearer side, and the lateral leakage of the excrement on the front waist area side can be suppressed.

  The third width elastic member 63 may be disposed in a region where the effective length portion 66 of the front and rear elastic member 65 and the front bonding region FA overlap. Since the third width elastic member is disposed in the area overlapping the effective length portion 66 of the front and rear elastic member 65 and the front joint area FA, the contraction in the width direction W by the third width elastic member and the front and back direction by the front and rear elastic member 65 Contraction of L is easy to interlock. The portion contracted by the front and rear elastic members 65 is more likely to stand up on the wearer side, and lateral leakage of excrement on the front waist region side can be further suppressed.

  A first rear bonding area RA1 in which the absorbent main body 40 and the outer package 15 are bonded may be provided on the inner side in the width direction W than the rear non-bonding area NR. The boundary between the rear non-junction region NR and the first rear junction region RA1 may be located outside the lateral edge of the absorbent core 50 in the width direction W. The first rear junction region RA1 may be provided in the entire region in the width direction W of the absorbent core 50. When the exterior body 15 is pulled outside in the width direction W at the time of wearing, the absorbent main body 40 is pulled outside in the width direction W via the exterior body 15. At this time, the outer edge of the absorbent core 50 overlaps the first rear joint area RA1 in which the exterior body 15 and the absorbent main body 40 are joined. Therefore, when the exterior body 15 is pulled to the outside in the width direction W at the time of wearing, the length in the width direction of the absorbent main body also in the rear waist region where the outer edge of the absorbent core 50 can also be pulled to the outside in the width direction W It is easy to secure and to control leak more.

  A second rear bonding area RA2 in which the absorbent main body 40 and the outer package 15 are bonded may be provided on the rear side of the rear non-bonding area NR. The second back joint area RA2 is provided in an area extending rearward from the front end edge of the back non-joining area NR and extending inward in the width direction W from the outer edge of the absorbent main body 40. The exterior body 15 and the absorbent main body 40 are joined in the second rear junction area RA2 provided on the rear side of the rear non-joint area NR, and the exterior body 15 may be curled up with respect to the absorbent main body 40 It is easy to suppress the problem that 40 falls inward in the width direction W and to properly apply the exterior body 15 and the absorbent main body 40 to the body of the wearer. The outer edge of the second rear joint area RA2 may coincide with the outer edge of the absorbent body 40, or may be located in the range of 3 to 5 mm inward from the outer edge of the absorbent body 40 .

  The length in the width direction W of the second rear junction region RA2 may be longer than the length in the width direction W of the rear non-junction region NR. The inner edge of the second rear bonding area RA2 may extend inward in the width direction W than the inner edge of the rear non-bonding area NR. The length in the width direction W of the second rear joint area RA2 where the package body 15 and the absorbent main body 40 are joined is the width direction W of the non-bonded area NR after the package body 15 and the absorbent main body 40 are not joined. The contraction in the width direction W of the exterior body 15 is easier to transmit to the absorbent main body 40 than the length. Therefore, when the exterior body 15 is pulled outside in the width direction W at the time of wearing, the absorbent main body 40 can also be pulled outside in the width direction W, and the length of the absorbent main body 40 in the width direction W can be secured.

  The effective length portion 66 of the front and rear elastic member 65 may overlap the second rear joint area RA2. The front and rear elastic members 65 are disposed on the outer side of the absorbent main body 40 and are disposed around the legs of the wearer. Since the effective length portion 66 of the front and rear elastic member 65 overlaps the second rear joint area RA2, the contraction in the width direction W of the exterior body 15 and the contraction in the front and rear direction L by the front and rear elastic member 65 are easily interlocked. The portion contracted by the front and rear elastic members 65 can easily rise to the wearer side, and the leakage on the rear waist region side can be further suppressed.

  The second width elastic member may be disposed in a region where the effective length portion 66 of the front and rear elastic member 65 and the second rear joint region RA2 overlap. Since the second width elastic member is disposed in the area overlapping the effective length portion 66 of the front and rear elastic member 65 and the second rear joint area RA2, the contraction in the width direction W by the second width elastic member and the front and rear elastic member 65 The contraction in the front-rear direction L is easy to interlock. The portion contracted by the front and rear elastic members 65 is more likely to stand up on the wearer side, and lateral leakage of excrement on the rear waist region side can be further suppressed.

  Although the present invention has been described above in detail using the above embodiments, it is obvious for those skilled in the art that the present invention is not limited to the embodiments described herein. The present invention can be embodied as modifications and alterations without departing from the spirit and scope of the present invention defined by the description of the claims. Accordingly, the description in the present specification is for the purpose of illustration and does not have any limiting meaning on the present invention.

  In the absorbent article according to the modification, the exterior body may be provided such that the front exterior body 20 and the rear exterior body 30 are integrated and the front waist area S1 extends from the rear waist area S2. The exterior body according to the modification extends outward of the absorbent main body 40 in the width direction W in the front waist area S1 and the front waist area S1, and is positioned in the width direction W in the crotch area of the absorbent main body 40 You may As described above, also in the absorbent article according to the modification, since the angle α formed by the absorbent main body 40 and the exterior body does not easily change at the rear end of the front waist area S1, the absorption area of the front waist area S1 is secured. Leakage can be suppressed. Further, since the angle β formed between the absorbent main body 40 and the exterior body at the front end of the rear waist region is likely to change, the leg opening can be enlarged on the rear waist region side, and the legs can be moved smoothly.

  It is possible to provide an absorbent article capable of securing an absorption area in the front waist region and suppressing leakage.

10 Absorbent Article 15 Exterior Body 20 Front Exterior Body 30 Rear Side Exterior Body 40 Absorbent Main Body 50 Absorbent Core 60 Side Joint 61 First Width Elastic Member 62 Second Width Elastic Member 63 Third Width Elastic Member 65 Front and Back Elastic Member NR Rear non-joint area RA1 First rear joint area RA2 Second rear joint area FA Front joint area S1 Front waist area S2 Rear waist area S3 Crotch area L Longitudinal direction W Width direction

Claims (13)

Front to back,
A width direction orthogonal to the front and back direction;
Front waist area,
Back waist area,
A crotch region disposed between the front waist region and the back waist region;
An absorbent body disposed across the crotch area, the front waist area and the back waist area;
It is an absorptive article which has an armor body arranged at least in the above-mentioned front waist area and the above-mentioned back waist area in the non-skin side of the above-mentioned absorptive main part, and.
The front end portion of the rear waist region is provided with a rear non-joining region in which the outer side portion of the absorbent main body and the exterior body are not joined;
An absorbent article, wherein a front bonding area in which an outer side portion of the absorbent main body and the exterior body are bonded is provided at a rear end portion of the front waist area.   The absorbent article according to claim 1, wherein a first width elastic member expandable in the width direction is arranged in the rear non-joining region. The rear non-joining region extends rearward from the front end edge of the rear waist region,
The absorptive article according to claim 1 or 2 whose length of said longitudinal direction of said back non-joining field is 5 mm or more and 20 mm or less. The absorbent article further includes a side joint that joins the outer side of the front waist area and the outer side of the back waist area.
The range in the front-rear direction of the rear non-joining region is a range of up to 30% with respect to the entire front-rear direction of the side joint from the end edge on the crotch region side of the side joint toward the rear. The absorbent article according to any one of claims 1 to 3. The absorbent body comprises an absorbent core,
A first rear bonding area in which the absorbent main body and the outer package are bonded is provided on the inner side in the width direction than the rear non-bonding area.
The boundary of the said back non-joining area | region and the said 1st back joining area | region is located in the said width direction outer side rather than the outer side edge of the said absorption core, Absorbent article. The 2nd back junction area to which the said absorptive main body and the said exterior body were joined is provided behind the said back non-joining area | region in any one of Claims 1-5. Absorbent article.
easy. The exterior body in the rear waist region is stretchable in the width direction,
The absorbent article according to claim 6, wherein the length in the width direction of the second back bonding region is longer than the length in the width direction of the back non-bonding region. The exterior body in the rear waist region is stretchable in the width direction,
The absorbent main body includes a front and rear elastic member disposed on the outer side of the absorbent main body and expandable in the front and rear direction,
The absorbent article according to claim 6 or 7, wherein the effective length portion of the front and rear elastic member overlaps the second rear joint region in the thickness direction.   The absorbent article according to claim 8, wherein a second width elastic member expandable in the width direction is disposed in a region where the effective length portion of the front and rear elastic member and the second rear joint region overlap. The exterior body in the front waist region is stretchable in the width direction,
The absorbent main body includes a front and rear elastic member disposed on the outer side of the absorbent main body and expandable in the front and rear direction,
The absorbent article according to any one of claims 1 to 9, wherein the effective length portions of the front and rear elastic members overlap the front bonding area in the thickness direction.   The absorbent article according to claim 10, wherein a third width elastic member expandable in the width direction is disposed in a region where the effective length portion of the front and rear elastic members and the front bonding region overlap.   The length in the width direction of the absorbent body at the front end edge of the back waist area is longer than the length in the width direction of the absorbent body at the rear end edge of the front waist area. The absorbent article of any one of 11. The absorbent article further includes a side joint that joins the outer side of the front waist area and the outer side of the back waist area.
The absorbent article according to any one of claims 1 to 12, wherein the rear waist region is provided with a buttocks cover extending to the crotch region side with respect to the side joint portion.

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