JP2019177294A - Disposable diaper - Google Patents

Abstract

An object of the present invention is to provide a disposable diaper in which an absorbent body is attached to an exterior member, in which distortion and wrinkle formation of the absorbent body are suppressed, and the disposable diaper is excellent in wearing feeling and fit. A disposable diaper in which an absorbent main body is provided at a crotch portion of an exterior member, wherein the absorbent main body has a front edge and a rear edge where an absorbent core is not present at a front end and a rear end. The front side edge portion 14 includes a front side edge portion 14 and a front side non-adhesion region 17 which is bonded to the exterior member on both sides in the width direction x to form a front adhesive region 16 therebetween and is not adhered to the exterior member therebetween. The rear side edge portion 15 is bonded to the exterior member on both sides in the width direction x to form a rear adhesive region 18, and a rear non-adhesion region 19 not bonded to the exterior member is formed therebetween. The absorbent body 7 has first and second intermediate non-adhesive regions 20 and 21 that are not adhered to the exterior member between the front adhesive region 16 and the rear adhesive region 18 on both sides in the width direction x. I have. [Selection diagram] FIG.

Description

  The present invention relates to a disposable diaper for infants or adults.

  Conventionally, an exterior member having a front body part, a rear body part, and a crotch part positioned between them, and an absorptivity provided between the top sheet, the back sheet, and the crotch part of the exterior member Disposable diapers having an absorbent body with a core are known. Such disposable diapers are generally formed by adhering an absorbent main body to an exterior member. For example, Patent Literature 1 discloses an absorbent article in which an absorbent main body and an exterior member are bonded with an adhesive that is intermittently applied in a stripe shape. In Patent Document 2, the adhesive region between the absorbent main body and the exterior member includes an abdominal adhesive part, a back adhesive part, a crotch adhesive part, a crotch adhesive part, an abdominal adhesive part, and a crotch adhesive part and a back adhesive part. There is disclosed an absorbent article that is divided into intermediate adhesive portions between the portions, and is formed so that three or more lengths in the width direction of the respective divided adhesive portions are different.

JP 2005-095261 A Japanese Patent Laid-Open No. 2005-087622

  Since the disposable diaper is worn so as to cover the waist around the wearer's crotch, forces in various directions are applied depending on the region. Therefore, in a disposable diaper in which the absorbent main body is attached to the exterior member, if the force acting on the exterior member is transmitted to the absorbent main body as it is due to the movement of the wearer, the absorbent main body is distorted, or there are many wrinkles in the absorbent main body. There is a risk that the feeling of wear and fit will be reduced. The present invention has been made in view of the above circumstances, and the purpose thereof is a disposable diaper in which an absorbent main body is attached to an exterior member, and distortion of the absorbent main body and formation of wrinkles are suppressed. The object is to provide a disposable diaper excellent in fit.

  The disposable diaper of the present invention that was able to solve the above problems is provided in the crotch portion of the exterior member having an exterior member having a front body part, a rear body part, and a crotch part located between these, A disposable diaper having a topsheet, a backsheet, and an absorbent body having an absorbent core disposed therebetween; the absorbent body is on the front side where there are no absorbent cores at the front and rear ends, respectively. The front side edge has one side and the other side in the width direction adhered to the exterior member to form a front adhesion region, and the front side is not adhered to the exterior member between them. A non-adhesive region is formed; the rear side edge is bonded to the exterior member on one side and the other side in the width direction to form a rear adhesive region, and is not adhered to the exterior member between them The absorbent body is on one side in the width direction, A first intermediate non-adhesion region that is not adhered to the exterior member is formed between the side adhesion region and the rear adhesion region, and is adhered to the exterior member between the front adhesion region and the rear adhesion region on the other side in the width direction. It is characterized in that a second intermediate non-bonding region that is not formed is formed.

In the disposable diaper of the present invention, the front side edge of the absorbent main body is bonded to the exterior member in the front adhesive region, and the rear side edge is bonded to the exterior member in the rear adhesive region. And the back side edge part is prevented from rolling up and peeling of the front and rear end parts of the absorbent main body can be suppressed. On the other hand, by providing a front non-adhesion region between one side in the width direction and the front side adhesion region on the other side, and providing a rear non-adhesion region between the one side in the width direction and the rear side adhesion region on the other side, It can suppress that many wrinkles form in a front non-adhesion area | region and a rear non-adhesion area | region, and can improve the wearing feeling of a disposable diaper by this. Then, on one side in the width direction, a first intermediate non-bonding region that is not bonded to the exterior member is formed between the front bonding region and the rear bonding region, and on the other side in the width direction, the front bonding region and the rear bonding region. By forming a second intermediate non-adhesive region that is not bonded to the exterior member during the movement, even when the wearer moves the leg, even if the portion along the edge of the leg opening of the exterior member is distorted, the distortion is absorbed. It becomes difficult to be transmitted to the sex body, and the fit of the absorbent body to the wearer's crotch can be improved.

  The front body part and / or the rear body part is provided with a body elastic member extending in the width direction, and at least a part of the body elastic member is arranged so as to overlap the front adhesive region or the rear adhesive region. preferable. When the body elastic member is provided on the front body part or the rear body part of the exterior member, the body elastic member can enhance the fit around the body of the disposable diaper. A contraction force in the width direction acts on the side trunk portion. However, according to the disposable diaper of the present invention, even in such a case, the front non-adhesion region is formed on the front side edge portion, and the rear non-adhesion region is formed on the rear side edge portion. It can suppress that many wrinkles form in the front side edge part and rear side edge part of this.

  The absorbent main body is preferably bonded to the exterior member between the first intermediate non-adhesion region and the second intermediate non-adhesion region to form an intermediate adhesion region. By providing the intermediate adhesive region, the absorbent main body can be stably fixed to the exterior member. Moreover, it is suppressed that an absorptive main body floats from an exterior member, and an absorptive main body is distorted, and the fit property to the wearer's crotch of an absorptive main body can be improved.

  The amount of adhesive applied per unit area of the front adhesive region and the rear adhesive region is preferably smaller than the amount of adhesive applied per unit area of the intermediate adhesive region. In disposable diapers, the front trunk and the rear trunk are more susceptible to force from various directions than the crotch, but by reducing the amount of adhesive applied in the front adhesive area and the rear adhesive area, The followability to such a force and the flexibility in the front side adhesive region and the rear side adhesive region can be enhanced.

  The front adhesive region and the rear adhesive region are preferably provided apart from the intermediate adhesive region. If the front adhesive region and the rear adhesive region are provided apart from the intermediate adhesive region, even if distortion occurs in each adhesive region, it becomes difficult for the distortion to be transmitted to the adjacent adhesive region. It becomes easy to maintain the adhesion to the crotch.

  The intermediate adhesive region preferably has an adhesive pattern in which a plurality of linear adhesives extending in the width direction are arranged in the front-rear direction. If the intermediate adhesive region has such an adhesive pattern, the absorbent main body is easily bent in the front-rear direction along the wearer's crotch, and the fit of the absorbent main body to the wearer's crotch and the feeling of wear Can be increased.

  The front adhesive region and the rear adhesive region preferably have an adhesive pattern in which a plurality of linear adhesives extending in the front-rear direction are arranged in the width direction. If the front side adhesive region and the rear side adhesive region have such an adhesive pattern, it is easy to resist the force acting in the width direction of the diaper while ensuring air permeability, and the absorbent main body is an exterior member It becomes difficult to peel from. Moreover, it becomes difficult to transmit the force with respect to the width direction from a front side trunk | drum or a rear side trunk | drum to an absorptive main body, and formation of the wrinkles in a front side adhesion | attachment area | region and a back side adhesion | attachment area | region can also be suppressed.

The absorbent main body is preferably provided with a crotch elastic member extending in the front-rear direction so as to overlap the first intermediate non-adhesion region or the second intermediate non-adhesion region. By providing the crotch elastic member on the absorbent main body, both sides in the width direction of the absorbent main body are lifted toward the wearer's skin, thereby improving the fit of the absorbent main body to the wearer's crotch.

  The exterior member is formed in a pants shape having a waist opening and a pair of leg openings. The exterior member extends along the front edge of the leg opening and extends across the absorbent body in the width direction. A front leg elastic member and a rear leg elastic member extending along the rear edge of the leg opening and extending across the absorbent main body in the width direction are provided, and the front leg elastic member and the rear leg are provided. It is preferable that the partial elastic member is arranged without overlapping the front side adhesive region and the rear side adhesive region. By providing the front leg elastic member and the rear leg elastic member in this way, the contraction force of the front leg elastic member and the rear leg elastic member is hardly transmitted to the absorbent main body, and the leg opening of the exterior member Even if the portion along the edge of the garment is distorted, it becomes easy to maintain the fit of the absorbent main body to the wearer's crotch.

  In the disposable diaper of the present invention, the front side edge of the absorbent main body is bonded to the exterior member in the front adhesive region, and the rear side edge is bonded to the exterior member in the rear adhesive region. Further, it is possible to prevent the rear side edge portion from curling up and to prevent peeling of the front and rear end portions of the absorbent main body. On the other hand, by providing a front non-adhesion region between one side in the width direction and the front side adhesion region on the other side, and providing a rear non-adhesion region between the one side in the width direction and the rear side adhesion region on the other side, It can suppress that many wrinkles form in a front non-adhesion area | region and a rear non-adhesion area | region, and can improve the wearing feeling of a disposable diaper by this. Then, on one side in the width direction, a first intermediate non-bonding region that is not bonded to the exterior member is formed between the front bonding region and the rear bonding region, and on the other side in the width direction, the front bonding region and the rear bonding region. By forming a second intermediate non-adhesive region that is not bonded to the exterior member during the movement, even when the wearer moves the leg, even if the portion along the edge of the leg opening of the exterior member is distorted, the distortion is absorbed. It becomes difficult to be transmitted to the sex body, and the fit of the absorbent body to the wearer's crotch can be improved.

An example of the disposable diaper of this invention is represented, and the perspective view of a disposable underpants type diaper is represented. The top view which looked at the state which unfolded and developed the joining of the front side trunk | drum of the disposable diaper shown in FIG. 1, and the rear side trunk | drum from the skin side surface is represented. The top view which looked at the state which unfolded and expand | deployed the joining of the front side trunk | drum of the disposable diaper shown in FIG. 1, and the rear side trunk | drum is represented. The IV-IV sectional drawing of the disposable diaper shown in FIG. 2 and FIG. 3 is represented. The top view of the absorptive main body of the disposable diaper shown in FIG. 3 is represented.

  The disposable diaper of this invention is demonstrated with reference to drawings. The present invention is not limited to the embodiments shown in the drawings.

  1 to 5 show a pants-type disposable diaper as an example of the disposable diaper of the present invention. FIG. 1 shows a perspective view of a disposable pants-type diaper, and FIG. 2 shows a state in which the front body part and the rear body part of the disposable diaper shown in FIG. FIG. 3 shows a view of a state where the front body portion and the rear body portion of the disposable diaper shown in FIG. 2 and IV-IV sectional drawing of the disposable diaper shown in FIG. 3 is represented, and FIG. 5 represents the top view of the absorptive main body of the disposable diaper shown in FIG. In the drawings, the arrow x represents the width direction, the arrow y represents the front-rear direction, and the direction perpendicular to the plane formed by the arrows x and y represents the thickness direction z.

The disposable diaper 1 has the exterior member 2 comprised from the front trunk | drum P, the rear trunk | drum Q, and the crotch part R located among these. In the disposable diaper 1 shown in the drawings, the exterior member 2 has a waist opening 3 and a pair of leg openings 4 and is formed in a pants shape. The waist opening 3 is an opening for passing the wearer's torso, and the leg opening 4 is an opening for passing the wearer's leg.

  In the exterior member 2, the front torso P corresponds to a portion applied to the wearer's stomach when wearing the diaper, and the rear torso Q is a portion applied to the wearer's back when wearing the diaper. It corresponds to. The crotch portion R is located between the front trunk portion P and the rear trunk portion Q, and corresponds to a portion applied to the wearer's crotch. The crotch portion R is a portion located in the middle of the exterior member 2 divided into three in the front-rear direction, and is not joined to each other on both sides in the width direction x when formed in a pants shape. When the disposable diaper is a pants-type diaper, the exterior member 2 is formed into a pants shape by joining the front body part P and the rear body part Q at the joint parts 11 at both ends in the width direction x, for example.

  In the disposable diaper, the front-rear direction y means the direction from the front torso P to the rear torso Q, and corresponds to the front-rear direction of the wearer's crotch when the diaper is worn. The width direction x corresponds to the left and right direction of the wearer when wearing a diaper. The skin side surface of the disposable diaper means a surface on the side facing the wearer's skin when the diaper is worn. The outer surface of the disposable diaper means a surface facing away from the wearer when the diaper is worn.

  The exterior member 2 may be composed of only one layer or may be composed of a plurality of layers. Preferably, the exterior member 2 includes an outer sheet 5 and an inner sheet 6 laminated on the skin side surface of the outer sheet 5.

  An absorbent main body 7 is provided at the crotch portion R of the exterior member 2. The absorptive main body 7 has a top sheet 8, a back sheet 9, and an absorptive core 10 disposed therebetween (see FIG. 4). The top sheet 8 is disposed on the wearer side with respect to the absorbent core 10, and the back sheet 9 is disposed on the outer side (opposite side of the wearer) with respect to the absorbent core 10 and adhered to the exterior member 2. The absorbent main body 7 is provided on the skin side surface of the exterior member 2 and is adhered to the skin side surface of the exterior member 2. The absorptive main body 7 should just exist in the crotch part R of the exterior member 2, and it is preferable to further extend to the front side trunk | drum P and / or the rear side trunk | drum Q. The absorptive main body 7 may be formed in, for example, a substantially hourglass shape or a substantially rectangular shape.

  The shape (planar shape) of the absorbent core 10 is not particularly limited. Examples of the shape of the absorbent core 10 include a substantially rectangular shape, an hourglass shape, a gourd shape, and a battledore shape. In the drawing, the absorbent core 10 is formed in a substantially rectangular shape.

  The absorbent main body 7 is preferably provided with rising flaps 12 on both sides in the width direction x (see FIGS. 2 and 4). By providing the rising flap 12, it is possible to prevent side leakage of excrement such as urine. It is preferable that the elastic member 13 for standing is provided in the upper end part (end part by the side of a wearer) of the state which the standing | starting flap 12 stood | started up. Due to the contraction force of the standing elastic member 13, the rising flap 12 is easily raised.

  As shown in FIGS. 1 to 3, it is preferable that a plurality of body elastic members 24 extending in the width direction x are provided on the front body part P and the rear body part Q of the exterior member 2. The body elastic member 24 is provided between the waist opening 3 and the leg opening 4. The torso elastic member 24 enhances the fit around the wearer's torso. Of the body elastic member 24, an elastic member provided at a narrow interval in the front-rear direction y along the edge of the waist opening 3 may be provided as the waist elastic member 25, thereby along the waist of the wearer. A waist gather is formed to prevent leakage of excrement such as urine from the back side or abdomen side. 1 to 3, the waist elastic member 25 is provided at a narrower interval in the front-rear direction y than the body elastic member 24.

  The exterior member 2 is preferably provided with leg elastic members 26 along the edges of the leg openings 4. In particular, when the disposable diaper of the present invention is a pants-type diaper, the leg elastic member 26 is preferably provided as described above. In the drawing, the leg elastic member 26 includes a front leg elastic member 26 </ b> F provided along the front edge of the leg opening 4 and a rear leg elasticity provided along the rear edge of the leg opening 4. It is comprised from the member 26B. The front leg elastic member 26 </ b> F and the rear leg elastic member 26 </ b> B provide an elastic member over substantially the entire periphery of the edge of the leg opening 4. The leg elastic members 26 form leg gathers around the legs of the wearer, and prevent leakage of excrement such as urine from the crotch. In the drawing, the front leg elastic member 26F and the rear leg elastic member 26B are provided apart from each other, but the front leg elastic member 26F and the rear leg elastic member 26B are in contact with each other or cross each other. May be.

  The body elastic member 24, the waist elastic member 25, and the leg elastic member 26 provided on the exterior member 2 are outside when the exterior member 2 is composed of the outer sheet 5 and the inner sheet 6 as shown in the drawing. It is preferable to be disposed between the sheet 5 and the inner sheet 6.

  As each elastic member provided in the disposable diaper, an elastic stretchable material used for a normal disposable diaper such as a polyurethane thread, a polyurethane film, or natural rubber can be used. Each elastic member is preferably fixed to the diaper in a stretched state, and is preferably fixed with an adhesive such as a hot melt adhesive. For example, polyurethane yarn having a fineness of 40 to 1,240 dtex is stretched and arranged at a magnification of 1.1 to 5.0 times and fixed. As the adhesive, it is preferable to use a rubber-based hot melt adhesive. The magnification is 1.0 in the non-expanded state.

  As shown in FIG. 5, the absorbent main body 7 has a front side edge portion 14 and a rear side edge portion 15 where the absorbent core 10 does not exist at the front end portion and the rear end portion, respectively. That is, the absorbent main body 7 has a front edge 14 formed in front of the absorbent core 10 and a rear edge 15 formed in the rear of the absorbent core 10. The front side edge portion 14 is defined as a portion including the front side end of the absorbent main body 7, and the rear side edge portion 15 is defined as a portion including the rear side end of the absorbent main body 7. The front side edge portion 14 and the rear side edge portion 15 may be formed by overlapping the top sheet 8 and the back sheet 9. The top sheet 8 is formed longer in the front-rear direction y than the back sheet 9. May be formed by being folded at the front end or the rear end of the absorbent main body 7, the back sheet 9 is formed longer in the front-rear direction y than the top sheet 8, and the back sheet 9 is the front side of the absorbent main body 7. It may be formed by being folded at the end or the rear end. By forming the front side edge portion 14 and the rear side edge portion 15 in the absorbent main body 7, it is difficult for urine or the like absorbed by the absorbent core 10 to leak out from the front end or the rear end of the absorbent main body 7.

  The front side edge portion 14 and the rear side edge portion 15 are preferably formed with a certain length in the front-rear direction y. Specifically, the length (shortest length) of the front side edge portion 14 and the rear side edge portion 15 in the front-rear direction y is preferably 3 mm or more, more preferably 5 mm or more, and further preferably 8 mm or more, thereby absorbing. The urine and the like are less likely to leak from the front end and the rear end of the sex main body 7. Since the front side edge 14 and the rear side edge 15 in the front-rear direction y may be too long, the front and rear sides of the front side edge 14 and the rear side edge 15 may be disturbed. The length in the direction y is preferably 40 mm or less, more preferably 30 mm or less, and even more preferably 25 mm or less. In addition, the length demonstrated here is the state which extended the elastic member provided in a disposable diaper completely (namely, the state which removed the elastic member, or the state which does not express the contractive force of an elastic member finely cut | disconnecting an elastic member) ) To measure. For various other lengths and positions described later, values measured under the same conditions are used.

When the front side edge 14 and the rear side edge 15 are provided in the absorbent main body 7 as described above, the front side end and the rear side end of the absorbent main body 7 may be rolled up so as not to disturb the wearer. It is preferable to adhere the front side edge portion 14 and the rear side edge portion 15 to the exterior member 2. However, since the rigidity of the front side edge portion 14 and the rear side edge portion 15 is reduced due to the absence of the absorbent core 10, when the front side edge portion 14 and the rear side edge portion 15 are bonded to the exterior member 2, Directly receiving the force from the exterior member 2, a large number of wrinkles are easily formed on the front side edge portion 14 and the rear side edge portion 15. Such wrinkles cause a decrease in wearing feeling when hitting the wearer's skin. In particular, when the body elastic member 24 extending in the width direction x is provided on the front body portion P and the rear body portion Q of the exterior member 2, the contraction force of the body elastic member 24 is the front side edge of the absorbent main body 7. It is transmitted to the part 14 and the rear side edge part 15, and it becomes easy to make wrinkles.

  Therefore, in the disposable diaper 1 of the present invention, both sides of the front side edge portion 14 and the rear side edge portion 15 in the width direction x are bonded to the exterior member 2, and the non-bonded regions 17 and 19 are provided therebetween. . Specifically, the front side edge portion 14 is bonded to the exterior member 2 on one side and the other side in the width direction x to form the front adhesive region 16 (16A, 16B), and is adhered to the exterior member 2 therebetween. Front side non-adhesion region 17 is formed, and rear side edge portion 15 is bonded to exterior member 2 on one side and the other side in width direction x to form rear side adhesion region 18 (18A, 18B). A rear non-bonding region 19 that is not bonded to the exterior member 2 is formed therebetween. By adhering the front edge 14 to the exterior member 2 at the front adhesive region 16 and adhering the rear edge 15 to the exterior member 2 at the rear adhesive region 18, the front edge 14 and the rear edge The rolling-up of the part 15 can be prevented. The front non-adhesion region 17 and the rear non-adhesion region are provided by providing the front non-adhesion region 17 and the rear non-adhesion region 19 between the front adhesion regions 16A and 16B and the rear adhesion regions 18A and 18B, respectively. 19, it can suppress that many wrinkles form, and can improve the wearing feeling of a disposable diaper by this.

  The front adhesive region 16 and the rear adhesive region 18 are formed on part or all of both ends when the front side edge portion 14 and the rear side edge portion 15 are equally divided into three in the width direction x. 17 and the rear non-adhesive region 19 are preferably formed in the entire central portion when the front side edge portion 14 and the rear side edge portion 15 are equally divided into three in the width direction x. That is, the front side edge portion 14 and the rear side edge portion 15 are bonded to the exterior member 2 at at least a part of both end portions when divided into three in the width direction x, and are bonded to the exterior member 2 at other portions. Preferably not. The front adhesive region 16 is preferably provided with a length of 20% or more with respect to the width direction x when the length in the width direction x of the front edge 14 is 100%, more preferably 30% or more. 60% or less is preferable, and 50% or less is more preferable. The rear adhesive region 18 is preferably provided with a length of 20% or more with respect to the width direction x when the length in the width direction x of the rear edge 15 is 100%. Is more preferable, 60% or less is preferable, and 50% or less is more preferable. By providing the front adhesive region 16 and the rear adhesive region 18 in this manner, the front side edge portion 14 and the rear side edge portion 15 are less likely to be peeled off from the exterior member 2, and the front end portion and the rear end of the absorbent main body 7 are separated. Many wrinkles are less likely to be formed in the part. In addition, the length of the width direction x of the front side adhesion | attachment area | region 16 and the back side adhesion | attachment area | region 18 demonstrated above means the length which match | combined the one side and the other side of the width direction x.

The front adhesive region 16 is preferably present at least in a region within 10 mm from the front end of the absorbent main body 7, more preferably present in a region within 5 mm, and includes the front end of the absorbent main body 7. More preferably. Similarly, the rear adhesion region 18 is preferably present at least in a region within 10 mm from the rear end of the absorbent body 7, more preferably in a region within 5 mm, and the rear side of the absorbent body 7. More preferably, it is provided including an end. The front side adhesive region 16 and the rear side adhesive region 18 are also preferably present in at least a region within 15 mm from both ends of the absorbent body 7 in the width direction x, more preferably within a region within 10 mm, and within 8 mm. More preferably, it exists in the region. By providing the front adhesive region 16 and the rear adhesive region 18 in this way, the front side edge 14 and the rear side edge 15 of the absorbent main body 7 are not easily rolled up, and the wearing feeling of the disposable diaper is improved. Can do.

  The front adhesive region 16 is preferably provided to extend not only to the front side edge portion 14 but also to the rear thereof. The rear adhesive region 18 is preferably provided so as to extend not only to the rear edge 15 but also to the front thereof. In this case, the front adhesive region 16 and / or the rear adhesive region 18 are provided to extend to a portion where the absorbent core 10 of the absorbent main body 7 exists. From the viewpoint of stably fixing the absorbent main body 7 to the exterior member 2, the lengths in the front-rear direction y of the front adhesive region 16 and the rear adhesive region 18 are each preferably 40 mm or more, more preferably 70 mm or more, and 100 mm or more. Is more preferable. As will be described later, since non-adhesive regions 20 and 21 are formed between the front adhesive region 16 and the rear adhesive region 18, the length of the non-adhesive regions 20 and 21 in the front-rear direction y is ensured. In view of this, the length in the front-rear direction y of the front adhesive region 16 and the rear adhesive region 18 is preferably 180 mm or less, more preferably 150 mm or less, and even more preferably 120 mm or less.

  In the disposable diaper 1, non-adhesive regions 20 and 21 are formed between the front adhesive region 16 and the rear adhesive region 18. That is, the absorbent main body 7 is formed with a first intermediate non-adhesive region 20 that is not adhered to the exterior member 2 between the front adhesive region 16A and the rear adhesive region 18A on one side in the width direction x. On the other side, a second intermediate non-bonding region 21 that is not bonded to the exterior member 2 is formed between the front bonding region 16B and the rear bonding region 18B. By providing the first intermediate non-adhesion region 20 and the second intermediate non-adhesion region 21 in this manner, even when the wearer moves the leg, even if the portion along the edge of the leg opening 4 of the exterior member 2 is distorted. And the distortion becomes difficult to be transmitted to the absorptive main body 7, and it becomes easy to maintain the fit of the absorbent main body 7 to the wearer's crotch. For example, the first intermediate non-adhesion region 20 and the second intermediate non-adhesion region 21 are preferably formed with a length of 200 mm or more in the front-rear direction y, more preferably 250 mm or more, and even more preferably 300 mm or more.

  The absorbent main body 7 may be bonded to the exterior member 2 at least in the front adhesive region 16 and the rear adhesive region 18, but the front non-adhesive region 17, the rear non-adhesive region 19, and the first intermediate non-adhesive region 20 As long as the second intermediate non-adhesion region 21 is formed, it may be adhered to the exterior member 2 at other portions. Specifically, the absorbent main body 7 may be bonded to the exterior member 2 between the first intermediate non-adhesive region 20 and the second intermediate non-adhesive region 21 to form an intermediate adhesive region 22. By providing the intermediate bonding region 22, the absorbent main body 7 can be stably fixed to the exterior member 2. In addition, by providing the intermediate bonding region 22, it is possible to suppress the absorbent main body 7 from being lifted from the exterior member 2 and distorting the absorbent main body 7, so that the absorbent main body 7 can be fitted into the wearer's crotch. Can be increased.

  The intermediate bonding region 22 is preferably provided at least in the crotch portion R of the exterior member 2 and may be provided so as to extend to the front trunk portion P and / or the rear trunk portion Q. The intermediate adhesive region 22 is preferably formed in a portion overlapping the absorbent core 10. The intermediate bonding region 22 is formed at a position that does not overlap at least the front bonding region 16 and the rear bonding region 18 with respect to the front-rear direction y, but is a position that overlaps the front bonding region 16 and the rear bonding region 18 with the front-rear direction y. Also preferably formed. By forming the intermediate bonding region 22 in this way, it is possible to prevent the absorbent main body 7 from being lifted from the exterior member 2 in a part in the front-rear direction y and greatly distorted.

It is preferable that the intermediate bonding region 22 is not formed at a position overlapping the front bonding region 16 and the rear bonding region 18 in the width direction x. By forming the intermediate bonding region 22 in this way, the length in the width direction x of the first intermediate non-bonding region 20 and the second intermediate non-bonding region 21 is sufficiently secured, and the leg opening 4 of the exterior member 2 is formed. Even if the portion along the edge is distorted, the distortion can be hardly transmitted to the absorbent main body 7. The intermediate adhesive region 22 has a length in the width direction x, which is formed on one side and the other side in the width direction x, respectively, on the front side adhesive regions 16A and 16B and the rear side adhesive regions 18A and 18B.
It is preferable that the length is longer than the length in the width direction x. By forming the intermediate adhesive region 22 in this manner, the absorbent main body 7 can be stably fixed to the exterior member 2 easily. The length in the width direction x of the intermediate bonding region 22 is, for example, preferably 60 mm or more, more preferably 80 mm or more, further preferably 100 mm or more, preferably 200 mm or less, more preferably 180 mm or less, and further preferably 160 mm or less.

  The intermediate adhesive region 22 may be provided separately from the front adhesive region 16 and the rear adhesive region 18 or may be provided connected to each other. The front adhesive region 16 and the rear adhesive region 18 are preferably provided separately from the intermediate adhesive region 22, so that even if distortion occurs in each adhesive region, it is difficult to transmit the distortion to the adjacent adhesive region. Thus, the adhesion of the absorbent main body 7 to the wearer's crotch can be easily maintained. From the viewpoint of stably fixing the absorbent main body 7 to the exterior member 2, the separation distance between the front adhesion region 16 and the intermediate adhesion region 22, and the separation distance between the rear adhesion region 18 and the intermediate adhesion region 22 are each 30 mm. Or less, more preferably 20 mm or less, and even more preferably 10 mm or less. The separation distance includes a case where the separation distance is 0 mm.

  The absorbent main body 7 is provided to extend from the crotch R to the front body part P and the rear body part Q, the front side edge part 14 is provided to the front side body part P, and the rear side edge part 15 is provided to the rear side. It is preferable to be provided in the side trunk portion Q. In this case, the front non-bonding region 17 is provided in the front trunk P, and the rear non-bonding region 19 is provided in the rear trunk Q. The disposable diaper 1 is provided with a front non-adhesive region 17 positioned at the front torso P where the force in the width direction x easily acts between the front torso P and the back torso Q when worn. By providing the side non-adhesive region 19 so as to be positioned in the rear trunk portion Q, even if a force in the width direction x acts on the front side edge portion 14 and the rear side edge portion 15, the front non-adhesive region 17 and By forming the back side non-adhesion area | region 19, it can suppress that a large amount of wrinkles are made and can improve the wearing feeling of a disposable diaper.

  When the body elastic member 24 is provided on the front body P and / or the rear body Q, at least a part of the body elastic member 24 is disposed so as to overlap the front adhesive region 16 or the rear adhesive region 18. It is preferable. In this case, a contraction force in the width direction x acts on the front body portion P and the rear body portion Q by the body elastic member 24. Even in such a case, the front side non-adhesion region 17 and the rear side non-adhesion It is possible to suppress the formation of many wrinkles by the region 19.

  When the trunk elastic member 24 is disposed so as to overlap the front adhesive region 16 or the rear adhesive region 18, the trunk elastic member 24 is intermittently provided in a portion overlapping the front adhesive region 16 and / or the rear adhesive region 18. It is preferable to be provided. By providing the body elastic member 24 in this manner, wrinkles are hardly formed on the front side edge portion 14 and / or the rear side edge portion 15 (particularly, the front side adhesive region 16 and / or the rear side adhesive region 18). On the other hand, the body elastic member 24 is preferably provided continuously in a portion that overlaps the front non-adhesion region 17 and / or the rear non-adhesion region 19 and is wider than the front adhesion region 16 and the rear adhesion region 18. It is preferable to be provided continuously even in the outside of the direction x, thereby ensuring fit around the wearer's torso.

  It is also preferable that at least a part of the body elastic member 24 overlaps the absorbent core 10. If the trunk | drum elastic member 24 overlaps with the absorptive core 10, it will become easy to arrange | position the front-and-rear end part of the absorptive core 10 near a wearer's skin with the contraction force of the trunk | drum elastic member 24, and a wearer It becomes easy to receive the excretion from.

When the front leg elastic member 26F and the rear leg elastic member 26B are provided on the exterior member 2, the front leg elastic member 26F and the rear leg elastic member 26B are connected to the front adhesive region 16 and the rear adhesive region 18 respectively. It is preferable to arrange without overlapping. In this case, the front leg elastic member 26 </ b> F and the rear leg elastic member 26 </ b> B are preferably arranged so as to overlap the first intermediate non-adhesion region 20 and the second intermediate non-adhesion region 21. Thus, by providing the front leg elastic member 26F and the rear leg elastic member 26B, the contraction force of the front leg elastic member 26F and the rear leg elastic member 26B is not easily transmitted to the absorbent main body 7, and the exterior Even if the portion along the edge of the leg opening 4 of the member 2 is distorted, it becomes easy to maintain the fit of the absorbent main body 7 to the wearer's crotch.

  The front leg elastic member 26 </ b> F and the rear leg elastic member 26 </ b> B are preferably provided intermittently at a portion crossing the crotch portion R in the width direction x. When the front leg elastic member 26F and the rear leg elastic member 26B are provided across the intermediate bonding region 22 in the width direction x, the front leg elastic member 26F and the rear leg are overlapped with the intermediate bonding region 22. The elastic member 26B is preferably provided intermittently. In other parts, it is preferable that the front leg elastic member 26F and the rear leg elastic member 26B are provided continuously. If the front leg elastic member 26 </ b> F and the rear leg elastic member 26 </ b> B are provided in this way, the absorbent main body 7 is less likely to be distorted and the contraction force by the leg elastic member 26 extends to the vicinity of the intermediate bonding region 22. Thereby, the absorptive main body 7 is lifted toward the wearer, and the fit property between the crotch of the wearer of the absorptive main body 7 is enhanced.

  In the case where the trunk elastic member 24 and the leg elastic member 26 are intermittently provided, for example, after the trunk elastic member 24 and the leg elastic member 26 are bonded and fixed to the exterior member 2, the trunk elastic member 24 and the leg portion are fixed. The elastic member 26 may be cut with a cutter or the like. At this time, in the case of the body elastic member 24, it is preferable to cut a plurality of positions (preferably 3 or more) in each of the front side adhesive region 16 or the rear side adhesive region 18, and in the case of the leg elastic member 26, It is preferable to cut a plurality of locations (preferably 5 locations or more) at a portion crossing the portion R. By doing in this way, the trunk | drum elastic member 24 and the leg elastic member 26 can be easily provided intermittently on manufacture, and the trunk | drum elastic member 24 and the leg elastic member 26 were provided intermittently. In part, the contraction force of these elastic members can be substantially lost.

  The absorbent main body 7 is preferably provided with a crotch elastic member 23 that overlaps the first intermediate non-adhesion region 20 or the second intermediate non-adhesion region 21 and extends in the front-rear direction y. Specifically, the crotch elastic member 23 is provided on one side in the width direction x of the absorbent main body 7 so as to overlap the first intermediate non-adhesion region 20, and the second portion on the other side in the width direction x of the absorbent main body 7. 2 is preferably provided so as to overlap with the intermediate non-adhesion region 21 (see FIGS. 3 to 5). The crotch elastic member 23 is preferably disposed between the absorbent core 10 and the backsheet 9. By providing the crotch elastic member 23, both sides in the width direction x of the absorbent main body 7 are lifted toward the wearer's skin, thereby improving the fit of the absorbent main body 7 to the wearer's crotch, Side leakage such as urine can be made difficult to occur. In addition, when a separate absorbent article is used in combination with the disposable diaper 1 and a separate absorbent article is placed on the absorbent main body 7, the separate body is separated by the contraction force of the crotch elastic member 23. The effect of stably arranging the absorbent article on the absorbent main body 7 can also be expected. The crotch elastic member 23 is preferably provided so as not to overlap the front adhesive region 16 and the rear adhesive region 18, thereby making it difficult for the absorbent main body 7 to be distorted in the front-rear direction y.

Each adhesion region for adhering the absorbent main body 7 and the exterior member 2 may be formed by applying an adhesive to the outer side surface of the back sheet 9 or the skin side surface of the exterior member 2. As the adhesive, it is convenient in production to use a hot melt adhesive, and among them, a rubber hot melt adhesive is preferably used. If the front adhesive region 16, the rear adhesive region 18, and the intermediate adhesive region 22 are formed from a rubber-based hot melt adhesive, even if shear stress acts between the absorbent main body 7 and the exterior member 2, Relaxing and the absorbent main body 7 becomes difficult to peel from the exterior member 2. Although it will not specifically limit if it is a hot-melt-adhesive which shows rubber elasticity as a rubber-type hot-melt-adhesive, It is preferable that a styrene-type elastomer is included. Styrene elastomers include styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene-styrene block copolymer (SS), styrene-ethylene-butadiene-
Examples thereof include a styrene block copolymer (SES) and a styrene-ethylene-propylene-styrene block copolymer (SES). The styrene elastomer illustrated above may use only 1 type, and may use 2 or more types together.

  Each adhesive region may be applied with an adhesive over the entire surface, or may be applied in a predetermined pattern such as a net shape, a line shape, or a dotted shape. The front adhesive region 16 and the rear adhesive region 18 preferably have a linear adhesive pattern, thereby ensuring air permeability and flexibility in the front adhesive region 16 and the rear adhesive region 18. It becomes easy. When the intermediate bonding region 22 is provided in the absorbent main body 7, it is preferable that the intermediate bonding region 22 also has a linear bonding pattern.

  The front adhesive region 16 and the rear adhesive region 18 preferably have an adhesive pattern in which a plurality of linear adhesives extending in the front-rear direction y are arranged in the width direction x. If the front-side adhesive region 16 and the rear-side adhesive region 18 have such an adhesive pattern, it is easy to resist the force acting in the width direction x of the diaper while ensuring air permeability, and the absorbent main body 7 becomes difficult to peel from the exterior member 2. Further, the force in the width direction x from the front body portion P and the rear body portion Q is not easily transmitted to the absorbent main body 7, and the formation of wrinkles in the front adhesive region 16 and the rear adhesive region 18 can also be suppressed.

  The intermediate adhesive region 22 preferably has an adhesive pattern in which a plurality of linear adhesives extending in the width direction x are arranged in the front-rear direction y. In the intermediate bonding region 22, the absorbent main body 7 is greatly bent in the front-rear direction y of the diaper applied to the wearer's crotch, so that the absorbent main body 7 is not easily peeled off from the exterior member 2 against such a curvature. Moreover, it is preferable that the intermediate adhesive region 22 has an adhesive pattern in which a plurality of linear adhesives extending in the width direction x are arranged in the front-rear direction y. Thereby, the absorptive main body 7 is easily bent in the front-rear direction y along the wearer's crotch without applying an excessive load in the intermediate bonding region 22, and adhesion of the intermediate bonding region 22 is easily maintained.

  The linear adhesive pattern may be linear, curved, or a combination thereof. Examples of the curved adhesive pattern include a pattern in which the adhesive is applied in a meandering shape or a spiral shape (spiral shape). In this case, the extending direction of the adhesive is the extension of the repeated pattern of the curved line. Determined based on direction. The meandering shape includes, for example, a sinusoidal or Ω-like repeating pattern. A linear adhesive pattern can be formed by applying an adhesive by a coater method, a bead method, an omega coating method, a spiral coating method, a pattern coating, or the like.

  The adhesive pattern of the front adhesive region 16 and the rear adhesive region 18 is preferably such that linear adhesives extending in a meandering manner and / or a spiral shape in the front-rear direction y are arranged in a plurality of rows in the width direction x. . If the front adhesive region 16 and the rear adhesive region 18 are formed in this way, it becomes easier to counteract not only the force acting in the width direction x of the diaper but also the force acting in the front-rear direction y. In addition, the front end portion and the rear end portion of the absorbent main body 7 are difficult to peel off from the exterior member 2. For example, the absorbent main body 7 can be made difficult to peel from the exterior member 2 when the disposable diaper is attached or detached.

  The adhesive pattern of the intermediate adhesive region 22 is preferably such that a plurality of rows of adhesives extending substantially linearly in the width direction x are arranged in the front-rear direction y. That is, the intermediate bonding region 22 preferably has a striped bonding pattern extending in the width direction x. By forming the intermediate adhesive region 22 in this manner, the absorbent main body 7 is easily curved in the front-rear direction y along the wearer's crotch, and the fit of the absorbent main body 7 to the wearer's crotch and the feeling of wear Can be increased.

  The adhesive pattern in which a plurality of rows of linear adhesives are arranged has a line width of preferably 5 mm or less, more preferably 3 mm or less, from the viewpoint of ensuring air permeability and flexibility in the adhesion region. More preferred are: In the disposable diaper, the front body part P and the rear body part Q are more likely to receive force from various directions than the crotch part R, and followability and flexibility are required. From this point, when the front adhesive region 16, the rear adhesive region 18, and the intermediate adhesive region 22 have a linear adhesive pattern, the line width of the adhesive in the front adhesive region 16 and the rear adhesive region 18 is the intermediate adhesive region. It is preferably thinner than the line width of 22 adhesives.

  In an adhesive pattern in which a plurality of substantially linear adhesives are arranged, the distance between adjacent substantially linear adhesives is, for example, preferably 2 mm or more, more preferably 3 mm or more, and further preferably 4 mm or more. Moreover, 20 mm or less is preferable, 15 mm or less is more preferable, and 10 mm or less is further more preferable. By applying the adhesive in this way, it is easy to ensure air permeability and flexibility while ensuring adhesive strength.

  In the case of an adhesive pattern in which a plurality of lines of linear adhesives extending in a serpentine or spiral shape are arranged, the swing width of the serpentine or spiral adhesive pattern is preferably 2 mm or more, more preferably 3 mm or more, and 10 mm or less. Is preferable, and 8 mm or less is more preferable. Adjacent serpentine or spiral adhesives may be provided apart from each other or may be provided in an overlapping manner. In the former case, the distance (shortest distance) between adjacent serpentine or spiral adhesives is preferably 15 mm or less, more preferably 10 mm or less, and even more preferably 5 mm or less. By applying the adhesive in this way, it is easy to ensure air permeability and flexibility while ensuring adhesive strength.

  The amount of adhesive applied per unit area of the front adhesive region 16 and the rear adhesive region 18 is preferably smaller than the amount of adhesive applied per unit area of the intermediate adhesive region 22. In the disposable diaper, the front body part P and the rear body part Q are more susceptible to force from various directions than the crotch part R, and followability and flexibility are required. By reducing the amount of adhesive applied per unit area of the adhesive region 18, it is possible to improve the followability to such force and the flexibility in the front adhesive region 16 and the rear adhesive region 18. Further, in the disposable diaper, the front torso P and the back torso Q are more likely to be sweated by the wearer than the crotch R. By providing the adhesive in this way, the intermediate bonding region 22 is provided. In addition, the air permeability in the front adhesive region 16 and the rear adhesive region 18 can be improved.

  As mentioned above, although the case where the disposable diaper of the present invention is applied to the pants-type diaper has been described, the disposable diaper of the present invention is provided with fastening members on both sides in the width direction of the rear body part, and the fastening member It may be an open type (tape type) disposable diaper formed into a pants shape when worn.

  The material of each member which comprises the disposable diaper of this invention is demonstrated. A top sheet is a sheet | seat located in a wearer side in the case of diaper wear, and it is preferable that it is liquid-permeable. As the top sheet, for example, a nonwoven fabric formed from hydrophilic fibers such as cellulose, rayon, and cotton, and a hydrophobic property such as polyolefin (eg, polypropylene, polyethylene), polyester (eg, PET), polyamide (eg, nylon), etc. A non-woven fabric formed from fibers, in which the surface of hydrophobic fibers is hydrophilized with a surfactant, can be used. Further, as the top sheet, a woven fabric, a knitted fabric, a plastic film in which holes are formed, or the like may be used.

The back sheet is a sheet located on the side opposite to the wearer when the diaper is worn, that is, on the outside, and is preferably liquid-impermeable. As the back sheet, a non-woven fabric formed from hydrophobic fibers such as polyolefin (for example, polypropylene, polyethylene), polyester (for example, PET), polyamide (for example, nylon), a plastic film, or the like can be used. Moreover, you may use the laminated body of a nonwoven fabric and a plastic film. Liquid impermeability includes the meaning of water repellency.

  A material that can be used for the back sheet can be used for the rising flap.

  The exterior member may be liquid permeable or liquid impermeable, and a sheet material that can be used for a top sheet or a back sheet can be used. The exterior member is preferably formed by laminating an outer sheet on an inner sheet, and more preferably formed by laminating a liquid-impermeable outer sheet on a hydrophilic inner sheet. In this case, a sheet material usable for the top sheet can be used as the inner sheet, and a sheet material usable for the back sheet can be used as the outer sheet.

  When using a nonwoven fabric as each sheet material demonstrated above, it is preferable to use a spunbond nonwoven fabric, an air through nonwoven fabric, a point bond nonwoven fabric, a melt blown nonwoven fabric, an airlaid nonwoven fabric, an SMS nonwoven fabric, etc. as a nonwoven fabric.

  The absorbent core is not particularly limited as long as it includes an absorbent material that can absorb excrement such as urine. As an absorptive core, the molded object which shape | molded the absorptive material in the predetermined shape can be used, for example. The absorbent core may be covered with a sheet member such as a paper sheet (for example, tissue paper or thin paper) or a liquid-permeable nonwoven fabric. Examples of the absorbent material contained in the absorbent core include hydrophilic fibers such as cellulose fibers (for example, pulverized pulp fibers), polyacrylic acid-based materials, polyaspartic acid-based materials, cellulose-based materials, starch-acrylonitrile-based materials, and the like. Water-absorbing resin etc. are mentioned. Further, the absorbent material may include a heat-fusible fiber such as a polyolefin fiber such as polyethylene or polypropylene, a polyester fiber such as PET, or a polyamide fiber such as nylon. These heat-fusible fibers may be subjected to a hydrophilic treatment with a surfactant or the like in order to increase the affinity with body fluid such as urine.

  It is preferable that an absorptive material contains a hydrophilic fiber from the point which improves the absorption speed | rates, such as urine. Moreover, it is preferable that an absorptive material contains a water absorbing resin from the point which raises absorption capacity. Therefore, it is preferable that an absorptive core contains a hydrophilic fiber (especially pulp fiber) and a water absorbing resin. In this case, it is preferable to use, for example, a mixture of hydrophilic fibers mixed or dispersed in an aggregate of hydrophilic fibers.

  The absorbent core may be a sheet-like absorber. If the absorbent core is a sheet-like absorbent body, when a separate absorbent article is used in combination, even if a separate absorbent article is placed on the absorbent main body, Bulkiness can be suppressed.

  Examples of the sheet-like absorber include those formed so as to have a water-absorbing resin between nonwoven fabrics and have no pulp fibers. Since the sheet-like absorbent body thus formed has a water-absorbing resin between the nonwoven fabrics, a high absorption capacity can be realized. Moreover, since a sheet-like absorber does not have pulp fibers between nonwoven fabrics, it can be formed thin without being bulky.

As a sheet-like absorber, a water-absorbing fiber may be used as an absorbent material. Also in this case, the sheet-like absorbent body is not bulky and is formed thin. Examples of the water-absorbing fiber include a fiber containing a protonated or salt-formed carboxyl group. For example, a water-absorbing fiber can be obtained by hydrolyzing an acrylic fiber and converting a nitrile group contained in the acrylic fiber into a carboxyl group. At this time, it is preferable that the carboxyl group contained in the water-absorbing fiber forms an alkali metal salt or an ammonia salt. Moreover, a water absorbing fiber can be manufactured by immersing a hydrophilic fiber in acrylic acid and precipitating acrylic acid on the fiber surface.

1: Disposable diaper 2: Exterior member 3: Waist opening 4: Leg opening 7: Absorbent body 8: Top sheet 9: Back sheet 10: Absorbent core 14: Front side edge 15: Rear side edge 16 , 16A, 16B: front side adhesive region 17: front side non-adhesive region 18, 18A, 18B: rear side adhesive region 19: rear side non-adhesive region 20: first intermediate non-adhesive region 21: second intermediate non-adhesive region 22: intermediate Bonding region 23: crotch elastic member 24: torso elastic member 26: leg elastic member, 26F: front leg elastic member, 26B: rear leg elastic member P: front torso Q: rear torso R: Crotch

Claims (8)

An exterior member having a front body part, a rear body part, and a crotch part located between them;
A disposable diaper that is provided in the crotch portion of the exterior member, and has a top sheet, a back sheet, and an absorbent main body having an absorbent core disposed therebetween,
The absorbent main body has a front side edge portion and a rear side edge portion where the absorbent core does not exist at the front end portion and the rear end portion, respectively.
The front side edge is bonded to the exterior member on one side and the other side in the width direction to form a front adhesive region, and a front non-adhesive region that is not bonded to the exterior member is formed between them.
The rear side edge is bonded to the exterior member on one side and the other side in the width direction to form a rear adhesion region, and a rear non-adhesion region that is not adhered to the exterior member is formed between them.
The absorbent main body has a first intermediate non-adhesion region that is not bonded to the exterior member between the front adhesive region and the rear adhesive region on one side in the width direction, and the other side in the width direction. The disposable diaper is characterized in that a second intermediate non-adhesive region that is not adhered to the exterior member is formed between the front adhesive region and the rear adhesive region. The front body part and / or the rear body part is provided with a body elastic member extending in the width direction,
The disposable diaper according to claim 1, wherein at least a part of the body elastic member is disposed so as to overlap the front adhesive region or the rear adhesive region.   The disposable diaper according to claim 1 or 2, wherein the absorbent main body is adhered to the exterior member between the first intermediate non-adhesion region and the second intermediate non-adhesion region to form an intermediate adhesion region. .   The disposable diaper according to claim 3, wherein the front adhesive region and the rear adhesive region are provided apart from the intermediate adhesive region. The front adhesive region and the rear adhesive region have an adhesive pattern in which a plurality of linear adhesives extending in the front-rear direction are arranged in the width direction,
The disposable diaper according to claim 3 or 4, wherein the intermediate adhesive region has an adhesive pattern in which a plurality of linear adhesives extending in the width direction are arranged in the front-rear direction.   The intermediate adhesive region is formed at a position that does not overlap the front adhesive region and the rear adhesive region in the front-rear direction, and is formed at a position that overlaps the front adhesive region and the rear adhesive region in the front-rear direction. The disposable diaper as described in any one of claim | item 3 -5.   The said absorptive main body is provided with the crotch elastic member which overlaps with the said 1st intermediate | middle non-adhesion area | region or the said 2nd intermediate | middle non-adhesion area | region, and extends in the front-back direction. The disposable diaper described. The exterior member is formed in a pants shape having a waist opening and a pair of leg openings,
The exterior member extends along a front edge of the leg opening, and extends along a front leg elastic member extending across the absorbent main body in the width direction, and a rear edge of the leg opening. A rear leg elastic member extending across the absorbent body in the width direction,
The disposable diaper according to any one of claims 1 to 7, wherein the front leg elastic member and the rear leg elastic member are arranged without overlapping the front adhesive region and the rear adhesive region. .