JP2020025748A - Absorbent article - Google Patents

Abstract

To provide an absorbent article further facilitating performing leg raising motion.SOLUTION: An absorbent article 10 comprises: a front central area positioned in a center in the width direction of a front waist area; a rear central area positioned in a center in the width direction of a rear waist area; and a side area arranged between the front central area and the rear central area. The front central area has a front first area FC1 of 0-30% of a full length in the longitudinal direction from a front edge of the front central area, a front second area FC2 of 30-60% of the full length in the longitudinal direction, and a front third area FC3 of 60-80% of the full length in the longitudinal direction. The side area has a side third area SR3 of 60-80% of a full length in the longitudinal direction from a front edge of the side area, and a side fourth area SR4 of 80-100% of the full length in the longitudinal direction. A pressure of the front first area when worn and a pressure of the front second area when worn are lower than a pressure of the front third area when worn, and a pressure of the side fourth area when worn is lower than the pressure of the side third area when worn.SELECTED DRAWING: Figure 3

Description

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

  Absorbent articles such as disposable diapers are worn so as to cover the abdominal and back sides of the body. 2. Description of the Related Art Absorbent articles have been known that improve the fit of a wearer around the leg and allow the wearer to easily move the leg up and down (Patent Document 1 below). The absorbent article of Patent Document 1 has a stretchable sheet arranged so as to cross the absorber along the inner edge of the front waist region. In a certain region extending in the longitudinal direction from the inner end edge of the front waist region, the elastic sheet is arranged, and the rubber thread is not arranged. The elastic sheet is fitted to the abdomen of the wearer in a planar manner, and it becomes difficult for the front waistline region to locally fit in a state where the wearer raises the leg. Therefore, the concentration of the extension stress in the abdomen is suppressed, and the wearer can easily move the leg up and down.

JP-A-2017-12461

  However, in recent years, there has been an increasing demand for absorbent articles by users, and there has been a demand for an absorbent article that allows a wearer to more easily perform a leg raising operation.

  Then, an object of the present invention is to provide an absorbent article that can more easily perform a leg raising operation.

  The absorbent article according to one aspect has a longitudinal direction and a width direction orthogonal to each other, a front waist region, a rear waist region, and a crotch region disposed between the front waist region and the rear waist region; A side joint that joins an outer portion of the waist region and an outer portion of the rear waist region, a front center region located at the center in the width direction of the front waist region, and a center in the width direction of the rear waist region. An absorbent article having a rear central region located therein, and a side region located at the center in the width direction between the front central region and the rear central region, wherein the front central region includes the front central region. 0-30% of the front first region from the front edge of the region to the total length in the longitudinal direction of the front central region, and 30-60% of the front central region from the front edge of the front central region to the total length in the longitudinal direction. In front of the second region and in front of the front central region A front third region of 60 to 80% of the entire length in the longitudinal direction of the front central region from an edge, and the side region has a length from the front edge of the side region to the total length in the longitudinal direction of the side region. Wearing the front first region having a side third region of 60 to 80% and a side fourth region of 80 to 100% with respect to the entire length in the longitudinal direction of the side region from the front edge of the side region. The pressure at the time of wearing and the pressure at the time of wearing of the front second region are lower than the pressure at the time of wearing of the front third region, and the pressure at the time of wearing of the side fourth region is the side third region. Is lower than the pressure at the time of wearing.

It is a top view of the absorptive article concerning an embodiment. It is the figure which showed the front center area | region, the side area | region, and the back center area | region 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. 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 be apparent from the description of the present specification and the accompanying drawings.
The absorbent article according to one aspect has a longitudinal direction and a width direction orthogonal to each other, a front waist region, a rear waist region, and a crotch region disposed between the front waist region and the rear waist region; A side joint that joins an outer portion of the waist region and an outer portion of the rear waist region, a front center region located at the center in the width direction of the front waist region, and a center in the width direction of the rear waist region. An absorbent article having a rear central region located therein, and a side region located at the center in the width direction between the front central region and the rear central region, wherein the front central region includes the front central region. 0-30% of the front first region from the front edge of the region to the total length in the longitudinal direction of the front central region, and 30-60% of the front central region from the front edge of the front central region to the total length in the longitudinal direction. In front of the second region and in front of the front central region A front third region of 60 to 80% of the entire length in the longitudinal direction of the front central region from an edge, and the side region has a length from the front edge of the side region to the total length in the longitudinal direction of the side region. Wearing the front first region having a side third region of 60 to 80% and a side fourth region of 80 to 100% with respect to the entire length in the longitudinal direction of the side region from the front edge of the side region. The pressure at the time of wearing and the pressure at the time of wearing of the front second region are lower than the pressure at the time of wearing of the front third region, and the pressure at the time of wearing of the side fourth region is the side third region. Is lower than the pressure at the time of wearing.

  The front first region and the front second region are arranged to face the bulge of the wearer's abdomen, and the front third region is arranged to face the recess at the lower end of the wearer's abdomen. The pressure at the time of wearing the front first region and the force at the time of crimping of the front second region are lower than the pressure at the time of wearing the front third region, and the front third region is fit to the recess at the lower end of the abdomen of the wearer. , The tightening of the swelling of the abdomen in the front first region and the front second region can be suppressed. When the wearer raises the leg, the leg and the abdomen are deformed so as to approach each other. At this time, since the swelling of the abdomen is not tightened, the abdomen is easily deformed, and the legs are easily raised.

  In addition, the fourth side region is arranged to face the base of the leg. The fourth side region is disposed closer to the leg opening than the third side region, and is more susceptible to force when the wearer moves the leg up and down. The pressure at the time of wearing the fourth side region is lower than the pressure at the time of wearing the third side region, and the up-and-down motion of the leg is not hindered at the fourth side region while ensuring the fit to the body in the third side region. . Therefore, the wearer can easily move the leg up and down.

  According to a preferred aspect, the pressure during the wearing of the front third region is 1.2 times or more and 3.5 times or less the pressure of the front first region and the pressure during the wearing of the front second region. It may be.

  According to this aspect, since the pressure at the time of wearing of the front third region is 1.2 times or more of the pressure at the time of wearing of the front first region and the pressure at the time of wearing of the front second region, The fit can be ensured and the displacement of the entire abdomen can be suppressed. The absorbent article can be continuously worn at an appropriate position on the body, and a state in which the wearer can easily move the leg raising operation can be maintained. Further, since the pressure in the front third area is not more than 3.5 times the pressure in the front first area and the pressure in the front second area, the absorbent article does not adhere too much to the dent at the lower end of the abdomen, and is worn. Makes it easier for people to move their bodies.

  According to a preferred aspect, the front waist region includes a thread-shaped or band-shaped front elastic member that expands and contracts in the width direction, and an elastic sheet that expands and contracts at least in the width direction. The front elastic member may be arranged in the area, and the elastic sheet may be arranged in the front first area and the front second area.

  According to this aspect, the portion where the stretchable sheet is arranged fits in overall, and the portion where the thread-like or band-like front stretchable member is fitted locally fits. The absorbent article is arranged so as to cover the swelling of the abdomen, and by fitting locally to the dent at the lower end of the abdomen, the displacement of the absorbent article is suppressed without compressing the abdomen, and the wearer's leg It is possible to maintain a state in which the lifting operation is easy to move.

  According to a preferred aspect, the front elastic member and the elastic sheet may be arranged in the third front region.

  According to this aspect, in the front third region, both the stretchable sheet and the front stretchable member are arranged, and the pressure is further increased. The difference between the tightening for the dent at the lower end of the abdomen and the tightening for the swelling of the abdomen can be increased, the displacement of the absorbent article can be suppressed without compressing the abdomen, and the state in which the wearer can easily move the leg up operation can be maintained.

  According to a preferred aspect, the pressure at the time of wearing of the third side region may be 3.0 times or more the pressure at the time of wearing of the fourth side region.

  According to this aspect, since the pressure in the fourth side region is 3.0 times or more the pressure in the third side region, the fit to the abdomen is ensured, and the displacement of the entire abdomen can be suppressed. A state in which the wearer can easily move the leg raising operation can be maintained.

  According to a preferred aspect, the side region has a side second region that is 30 to 60% of a total length in a longitudinal direction of the side region from a front edge of the side region, and the wearing of the side fourth region is performed. The pressure at the time may be lower than the pressure at the time of the wearing of the second side area.

  According to this aspect, the pressure at the time of wearing of the fourth side region is lower than the pressure at the time of wearing of the second side region. Does not hinder the vertical movement of the legs. Therefore, the wearer can easily move the leg up and down.

  According to a preferred aspect, the crotch region, the absorbent body disposed over the front waist region and the rear waist region, and at least the rear waist region on the non-skin surface side of the absorbent body. And a non-joining region where the outer portion of the absorbent main body and the outer case are not joined to each other, may be provided at a front end of the rear waistline region.

  According to this aspect, by providing the non-joining region where the outer portion of the absorbent main body and the front end of the rear waistline member are not joined, the leg opening becomes wider when the wearer moves the leg during wearing. And the wearer can move the legs smoothly.

  According to a preferred aspect, the length in the width direction of the absorbent main body at the front edge of the rear waistline region is longer than the width direction length of the absorbent body at the rear edge of the front waistline region. May be.

  According to this aspect, since the width in the width direction of the absorbent body in the front waist region is short, compared with the configuration in which the width length of the absorbent body in the front waist region and the rear waist region is the same, The size of the surrounding opening is increased, so that the wearer can easily move the leg. Further, the length in the width direction of the absorbent body in the rear waist region is longer than the length in the width direction of the absorbent body in the front waist region, and it is easy to appropriately cover the bulge of the buttocks of the wearer. The fit to the body can be ensured and the gap can be suppressed. Further, even if the length in the width direction of the absorbent main body is ensured in the rear waist region, the leg can be easily moved by the provision of the non-joining region.

(2) Overall Schematic Configuration of Absorbent Article Hereinafter, an absorbent article according to an 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 ratios of dimensions are different from actual ones. Therefore, specific dimensions and the like should be determined in consideration of the following description. In addition, parts having different dimensional relationships and ratios between drawings may be included.

  The absorbent article is a pants-type absorbent article, and may be a disposable diaper and shorts-type napkin. The absorbent article of the 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 extended state in which the absorbent article 10 is extended to a state in which no wrinkles are formed in a state where a side joint 60 described later is developed.

  The absorbent article 10 has a longitudinal direction L and a width direction W orthogonal to each other. The longitudinal direction L is defined by a direction extending to the front side of the body and the rear side of the body. In other words, the longitudinal direction L is a direction that extends back and forth in the deployed absorbent article 10. Further, the absorbent article 10 has a thickness direction orthogonal to both the longitudinal direction L and the width direction W.

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

  In the present embodiment, the absorbent article 10 may have an exterior body and an absorbent main body 40. The exterior body is arranged on the non-skin side of the absorbent main body 40. The exterior body has at least the rear waistline member 30 and may have the front waistline member 20. The front waistline member 20 is arranged in the front waistline region S1. The rear waistline member 30 is arranged in the rear waistline region S2. The front waistline member 20 and the rear waistline member 30 may be made of, for example, a sheet such as a nonwoven fabric.

  A side joint portion 60 is provided in which an outer portion of the front waistline region S1 in the width direction W and an outer portion of the rear waistline region S2 in the width direction W are joined. The side joint portion 60 is defined by a portion where the end of the front waistline region S1 in the width direction W and the end of the rear waistline region S2 in the width direction W are locked to each other.

  In the state where the side joints 60 are formed, the absorbent article 10 has a waist opening through which a wearer's torso is inserted and a pair of leg openings 72 into which the wearer's legs are inserted (FIG. 3). ) Is formed. The waist opening may be defined by a front edge of the front waist area S1 and a rear edge of the rear waist area S2.

  Here, FIG. 1 shows a state where the bonding at the side bonding portion 60 is released and the absorbent article 10 is deployed. The side joint portion 60 may extend along the longitudinal direction L in each of the front waistline member 20 and the rear waistline member 30. In this case, the boundary between the front waistline region S1 and the crotch region S3 may be defined by the rear edge of the side joint 60 provided on the front waistline member 20. Similarly, the boundary between the rear waistline region S2 and the crotch region S3 may be defined by the front edge of the side joint 60 provided on the rear waistline member 30.

  A rear elastic member 32 that can expand and contract in the width direction W may be disposed in the rear waistline region S2. The rear elastic member 32 may be made of a thread-like or band-like rubber that can expand and contract in the width direction W. The rear elastic members 32 extend along the width direction W, and may be arranged in a plurality at intervals in the longitudinal direction L. Note that, in the present embodiment, the rear elastic member 32 is a member arranged in a state where it can expand and contract in the width direction, and does not include a member arranged in a state where it cannot expand and contract in the width direction. In the rear waistline area S2, an elastic sheet that expands and contracts at least in the width direction may be arranged. The elastic sheet may be constituted by the rear waistline member 30 itself, and may be arranged in the entire rear waistline region. In the rear waistline area S2, no elastic sheet may be arranged, and only the rear elastic member 32 may be arranged. The pressure at the time of wearing in the region where the rear elastic member 32 is arranged (hereinafter referred to as the wearing pressure) tends to be higher than the pressure at the time of wearing in the region where the rear elastic member 32 is not arranged. Further, in another embodiment, in the rear waistline area S2, an elastic sheet is arranged, and a region where the rear elastic member 32 is not arranged, and a region where both the rear elastic sheet and the rear elastic member 32 are arranged, May be provided. The wearing pressure in the region where both the rear elastic sheet and the rear elastic member 32 are arranged is likely to be higher than the wearing pressure in the region where only the elastic sheet is arranged. The wearing pressure will be described later in detail.

  A front elastic member 22 that can expand and contract in the width direction W may be arranged in the front waistline region S1. The front elastic member 22 may be made of a thread-like or band-like rubber that can expand and contract in the width direction W. The center of the front elastic member 22 in the width direction W is curved toward the crotch region S3. A plurality of front elastic members 22 may be arranged at intervals in the longitudinal direction L. Note that, in the present embodiment, the front elastic member 22 is a member arranged in a state capable of expanding and contracting in the width direction, and does not include a member arranged in a state in which it cannot expand and contract in the width direction. In the front waistline area S1, an elastic sheet that expands and contracts at least in the width direction may be arranged. The elastic sheet is constituted by the front waistline member 20 itself, and may be arranged in the entire front waistline region S1. The front waistline area S1 may be provided with a region where the elastic sheet is arranged and the front elastic member 22 is not arranged, and a region where both the elastic sheet and the front elastic member 22 are arranged. The wearing pressure in the area where both the elastic sheet and the front elastic member 22 are arranged is likely to be higher than the wearing pressure in the area where only the elastic sheet is arranged. Further, in another embodiment, in the front waistline region S1, no elastic sheet may be arranged, and only the front elastic member 22 may be arranged. The wearing pressure in the region where the front elastic member 22 is arranged is likely to be higher than the wearing pressure in the region where the front elastic member 22 is not arranged.

  The absorbent main body 40 is disposed over the front waistline member 20 and the rear waistline member 30. That is, the absorbent main body 40 extends over the front waistline region S1, the rear waistline region S2, and the crotch region S3. The absorbent main body 40 may be configured separately from the front waistline member 20 and the rear waistline member 30. In this case, the absorbent main body 40 may be joined to the front waistline member 20 and the rear waistline member 30 in the front waistline region S1 and the rear waistline region S2, respectively.

  The absorbent main body 40 includes at least an absorbent core 50. The absorbent core 50 may comprise, for example, ground pulp or superabsorbent polymer (SAP), or a mixture thereof. The absorbent core 50 is arranged at least in the crotch region S3. Preferably, the absorbent core 50 may extend from the front waistline region S1 to the rear waistline region S2 in the longitudinal direction L. The absorbent core 50 may be covered by a core wrap. Further, the absorbent body 40 includes a skin sheet 41 located on the skin side of the absorbent core, a non-skin surface sheet (not shown) located on the non-skin side of the absorbent core 50, and a skin in the width direction W. And a side sheet 43 that covers both side portions of the face sheet 41.

  FIG. 2 is a diagram schematically showing a front central region FC, a side region SR, and a rear central region RC of the absorbent article. The absorbent article has a front central region FC, a rear central region RC, and a side region SR. The front center region FC is located at the center in the width direction of the front waistline region S1. The center in the width direction of the front center region FC coincides with the center in the width direction of the front waistline region S1. The rear center region RC is located at the center in the width direction of the rear waistline region. The center in the width direction of the rear center region RC coincides with the center in the width direction of the rear waistline region S2. The side region SR is located between the front center region FC and the rear center region RC, and straddles the side joint 60. The center in the width direction of the side region SR may coincide with the side joint portion 60 (the boundary between the front waistline region S1 and the rear waistline region S2). The outer edge of the front center region FC matches the outer edge of the side region SR, and the outer edge of the rear center region RC matches the outer edge of the side region SR. That is, the front central area FC, the side area SR, and the rear central area RC are connected.

  The front center area FC, side area SR, and rear center area RC of the present invention can be defined by the following method. First, the side joint 60 of the absorbent article 10 is released, and the absorbent article 10 is deployed. Next, the absorbent article is stretched to a stretched state. The extended state is a state in which wrinkles due to contraction or the like of the elastic member are not formed. In the extended state, the length in the width direction of the front waistline area S1 and the length in the width direction of the rear waistline area S2 are measured. Next, the front waistline region S1 and the rear waistline region S2 are extended to a constant width. The fixed width of the front waistline region S1 is 60% of the length in the width direction of the front waistline region S1 in the extended state. The fixed width of the rear waistline area S2 is 60% of the length in the width direction of the rear waistline area S2 in the extended state. In the front waist region having a constant width, a region including the center in the width direction and having a length of 55% in the width direction is defined as a front center region, and a region between the front center region and an outer edge of the front waist region is a side region. Part of Further, in the rear waist region having a constant width, a region including the center in the width direction and having a length of 55% in the width direction is defined as a rear center region, and a region between the rear center region and the outer edge of the rear waist region is defined as a region. It is a part of the side area. The side region of the present invention is a region between the outer edge of the front central portion and the outer edge of the rear central portion.

  The front central area FC may be provided with a plurality of areas indicated by a ratio to the total length in the longitudinal direction of the front central area FC. The front center area FC is a front first area FC1 located 0 to 30% behind the front edge S1F of the front waistline area S1, and a front second area 30 to 60% behind the front edge S1F of the front waistline area S1. An area FC2, a third front area FC3 located 60 to 80% behind the front edge S1F of the front waistline area S1, and a fourth front area FC4 located 80 to 100% behind the front edge S1F of the front waistline area S1. And may have. Each region in the present embodiment is defined by the ratio of the length of the absorbent article in the stretched state.

  The rear central region RC may be provided with a plurality of regions indicated by a ratio to the total length in the longitudinal direction of the rear central region RC. The rear center region RC is a rear first region RC1 located 0 to 30% ahead of the rear edge S2R of the rear waistline region S2, and a rear region located 30 to 60% forward of the rear edge S2R of the rear waistline region S2. The second region RC2, the rear third region RC3 located 60% to 80% ahead of the rear edge S2R of the rear waistline region S2, and the rear region located 80% to 100% behind the rear edge S2R of the rear waistline region S2. And a fourth region RC4.

  The side region SR may be provided with a plurality of regions indicated by a ratio to the total length in the longitudinal direction of the side region SR. The side region SR includes a first side region SR1 which is located 0% to 30% below the crotch region side from a longitudinal outer edge of the side region SR (a longitudinal outer edge of the side joint portion 60), and a side region SR. The side second region SR2 located 30 to 60% below the crotch region from the outer edge in the longitudinal direction, and the side third region SR3 located 60 to 80% below the crotch region from the outer edge in the longitudinal direction of the side region SR. And a fourth side region SR4 located 80% to 100% below the crotch region side from the outer edge in the longitudinal direction of the side region SR.

  3 to 5 are diagrams schematically showing a state in which the absorbent article is worn by a wearer. FIG. 3 shows a mounting state on the side surface, FIG. 4 shows a mounting state on the abdomen side, and FIG. 5 shows a mounting state on the back side. 3 to 5, the line of the body of the wearer is indicated by a dashed line BL.

  As shown in FIG. 3, the absorbent article is worn so as to cover the waist of the wearer. Various irregularities are formed around the waist of the wearer due to swelling of the abdomen, swelling of the buttocks, and the like. The absorbent article according to the present embodiment is configured so as to be appropriately fitted to the unevenness, so that the wearer can more easily perform the leg raising operation. The absorbent article is designed to have an appropriate wearing pressure for each of the first to fourth regions, the first to fourth regions, and the first to fourth regions.

Table 1 shows the wearing pressure for each region.

  The wearing pressure in the front first area FC1 and the wearing pressure in the front second area FC2 are lower than the pressure when the front third area FC3 is worn. The first front area FC1 and the second front area FC2 are arranged to face the bulge of the abdomen of the wearer, and the third front area FC3 is arranged to face the dent at the lower end of the abdomen of the wearer. The pressure at the time of wearing of the front first area FC1 and the pressure at the time of wearing of the front second area FC2 are lower than the pressure at the time of wearing of the front third area FC3. It is possible to suppress the tightening of the abdominal swelling in the front first region FC1 and the front second region FC2 while ensuring the fit. When the wearer raises the leg, the leg and the abdomen are deformed so as to approach each other. At this time, since the swelling of the abdomen is not tightened, the abdomen is easily deformed, and the legs are easily raised.

  When worn, the front third region FC3 arranged in the recess at the lower end of the abdomen has a shape that is more concave than the front first region FC1 and the front second region FC2. Since the front central region has a shape along the depression of the body, the front central region FC is easily fitted to the body. The front central region is fitted along the body without the front central region being in close contact with the body, and the displacement of the absorbent article can be suppressed. In particular, even when the weight of the absorbent article is increased due to the absorption of body fluid, the absorbent article is unlikely to slip down. Therefore, the absorbent article can be continuously worn at an appropriate position on the body, and a state in which the wearer can easily move the leg raising operation can be maintained.

  The wearing pressure of the side fourth region SR4 is lower than the wearing pressure of the side third region SR3. The side fourth region SR4 is arranged to face the base of the leg. The fourth side region SR4 is disposed closer to the leg opening 72 than the third side region SR3, and is more susceptible to force in the action of the wearer moving the leg up and down. The pressure at the time of wearing the fourth side region SR4 is lower than the pressure at the time of wearing the third side region SR3, and while maintaining the fit to the body in the third side region SR3, the leg is placed in the fourth side region SR4. Does not hinder vertical movement. Therefore, the wearer can easily move the leg up and down.

  In particular, in infants, the swelling of the abdomen is large, and the legs are more easily lifted by not tightening the swelling of the abdomen. In addition, a low-month-old infant can easily search for his or her own body by moving the legs up and down. It is important for infants to be able to search their own body for their development during this period. According to the absorbency of the present embodiment, it is possible to suitably influence the development of infants.

  The wearing pressure of the front third area FC3 may be 1.2 times to 3.5 times the wearing pressure of the front first area FC1 and the wearing pressure of the front second area FC2, and preferably, It may be 1.5 times or more and 3.0 times or less. Since the wearing pressure of the front third area FC3 is at least 1.2 times the wearing pressure of the front first area FC1 and the wearing pressure of the front second area FC2, the fit to the abdomen is ensured, and the entire abdomen is secured. The displacement can be suppressed. The absorbent article 10 can be continuously worn at an appropriate position on the body, and a state where the wearer can easily move the leg raising operation can be maintained.

  Since the pressure of the front third area FC3 is not more than 3.5 times the pressure of the front first area FC1 and the pressure of the front second area FC2, the absorbent article 10 does not adhere too much to the recess at the lower end of the abdomen. This makes it easier for the wearer to move the body.

  In addition, in order to increase the wearing pressure in each region, at least one of the rear elastic member 32, the front elastic member 22, and the elastic sheet can be arranged in each region. In the present embodiment, at least one of the front elastic member 22, the rear elastic member 32, and the elastic sheet is arranged in each region.

  In the rear first region RC1, the rear second region RC2, and the rear third region RC3, no elastic sheet is arranged, and the rear elastic member 32 is arranged over the entire region in the width direction, and in the rear fourth region RC4. The elastic sheet is not arranged, and the rear elastic member 32 is arranged in a part of the width direction (only on both sides in the width direction). At the center in the width direction of the rear fourth region RC4, the elastic member constituting the rear elastic member 32 may be arranged in a non-extended state.

  In the front third area FC3 and the front fourth area FC4, the front elastic member 22 and the elastic sheet are arranged, and in the front first area FC1 and the front second area FC2, the front elastic member 22 is not arranged. , Only the elastic sheet is arranged. In another embodiment, only the elastic sheet or the front elastic member may be arranged in the front fourth area FC4.

  The configuration of the first side region SR1 to the fourth side region SR4 is different between the front waistline region S1 and the rear waistline region S2. Specifically, in the side first region SR1 of the front waistline region S1, the front elastic member 22 is not arranged, only the elastic sheet is arranged, and the side second region SR2 of the front waistline region S1 extends from the side second region SR2. In the four regions SR4, the front elastic member 22 and the elastic sheet are arranged. Further, in the first side region SR1 to the fourth side region SR4 of the rear waistline region S2, no elastic sheet is arranged, and the rear elastic member 32 is arranged. In another embodiment, only the elastic sheet or the elastic member may be arranged in the fourth side region SR4.

  In the front third area FC3, the front elastic member 22 is arranged, and in the front first area FC1 and the front second area FC2, an elastic sheet may be arranged. The portion where the elastic sheet is arranged fits in the entire surface, and the portion where the thread-like or band-like front elastic member 22 is arranged fits locally. By arranging the absorbent article 10 so as to cover the swelling of the abdomen and by locally fitting the dent at the lower end of the abdomen, the absorbent article 10 can be prevented from shifting without compressing the abdomen, Can maintain a state in which the leg raising operation can be easily moved.

  The front elastic member 22 and the elastic sheet may be arranged in the front third area FC3. In the front third area FC3, both the stretchable sheet and the front stretchable member 22 are arranged, and the pressure becomes higher. The difference between the tightening for the dent at the lower end of the abdomen and the tightening for the swelling of the abdomen can be increased, the displacement of the absorbent article 10 can be suppressed without compressing the abdomen, and the state in which the wearer can easily move the leg up operation can be maintained.

  The wearing pressure of the side third region SR3 may be 3.0 times or more, preferably 4.0 times or more, the wearing pressure of the side fourth region SR4. Since the pressure in the side fourth region SR4 is 3.0 times or more the pressure in the side third region SR3, the fit to the abdomen is ensured, and the displacement of the entire abdomen can be suppressed. A state in which the wearer can easily move the leg raising operation can be maintained.

  The wearing pressure of the fourth side region SR4 may be lower than the wearing pressure of the second side region SR2. Since the pressure at the time of wearing the fourth side region SR4 is lower than the pressure at the time of wearing the second side region SR2, the vertical movement of the legs in the fourth side region SR4 is ensured while the body is fit in the second side region SR2. Does not inhibit. Therefore, the wearer can easily move the leg up and down.

  The wearing pressure in the rear fourth region RC4 may be lower than the wearing pressure in the front first region FC1 and the wearing pressure in the front second region FC2. The rear fourth region RC4 is arranged to face the vertex of the bulge of the buttocks. If the tightening force on the apex of the buttocks is too high, the rear fourth region RC4 may shift downward. The pressure at the time of wearing the rear fourth region RC4 can be suppressed, and the shift of the absorbent article can be suppressed. By continuing to wear the absorbent article at an appropriate position on the body, it is possible to maintain a state in which the wearer can easily move the leg raising operation.

  The wearing pressure in the rear third region RC3 may be lower than the wearing pressure in the rear second region RC2. The rear third region RC3 is arranged closer to the vertex of the bulge of the buttocks than the rear second region RC2. When the absorbent article is not sufficiently lifted when worn, the rear third region RC3 may overlap with the top of the bulge of the buttocks, and the third region RC3 may shift down after being fitted to tighten against the top of the buttocks. is there. Since the pressure at the time of wearing of the rear third region RC3 is lower than the pressure at the time of wearing of the rear second region RC2, the shift of the absorbent article can be suppressed. By continuing to wear the absorbent article at an appropriate position on the body, it is possible to maintain a state in which the wearer can easily move the leg raising operation.

  As shown in FIGS. 1 and 3, a non-joining region NR where the outer portion of the absorbent main body 40 and the outer package are not joined may be provided at the front end of the rear waistline region S2. The non-joining area NR is an area where the outer part of the absorbent main body 40 and the rear waistline member 30 are not bonded at the front end of the rear waistline member 30. In FIGS. 1 and 3, the non-joining region is shown by hatching. The non-bonding region NR extends inward in the width direction from the outer edge of the absorbent main body 40 and extends rearward from the front edge of the rear waistline member 30. The non-junction region NR straddles the fourth side region SR4 and the rear fourth region RC4. By providing the non-joining region NR, when the wearer moves the leg during wearing, the leg opening 72 can be deformed so as to expand, and the wearer can move the leg smoothly.

  As shown in FIG. 1, the length W402 of the absorbent body 40 in the width direction W at the front edge of the rear waistline region S2 is the length W401 of the widthwise W of the absorbent body 40 at the rear edge of the front waistline region S1. May be longer. Since the length in the width direction W of the absorbent body 40 in the front waistline region S1 is relatively short, compared with the configuration in which the widthwise length of the absorbent body 40 in the front waistline region S1 and the rear waistline region S2 is the same, The size of the leg opening 72 is increased to make it easier for the wearer to move the leg.

  Since the length in the width direction W of the absorbent main body 40 in the rear waist region S2 is longer than the length in the width direction W of the absorbent main body 40 in the front waist region S1, it is easy to appropriately cover the bulge of the buttocks of the wearer. The fit to the body can be ensured, and the displacement of the absorbent article 10 can be suppressed. Further, even if the length in the width direction of the absorbent main body is secured in the rear waistline region S2, the ease of movement of the legs can be maintained due to the provision of the non-joining region NR.

  The wearing pressure of the entire rear central region may be greater than the wearing pressure of the entire front central region. Generally, when a person performs an operation, he often leans forward. By lowering the pressure when wearing the abdomen, tightening hardly occurs and does not hinder the wearer's movement. Therefore, the wearer can more easily perform the leg raising operation. In addition, the wearing pressure of the entire rear central region is the sum of the wearing pressures of the rear first region RC1 to the rear fourth region RC4 constituting the rear central region, and the wearing pressure of the entire front central region is the front pressure. It is the total value of the pressure at the time of wearing of the front first region FC1 to the front fourth region FC4 that constitute the central region.

  Here, the wearing pressure in each region can be measured by the following method. First, a measurement sample and a cylinder that schematically represents the wearer are prepared. The measurement sample is a cylindrical absorbent article in which the front waist region and the rear waist region are joined at the side joint. In the present embodiment, a measurement sample in which the front waistline member and the rear waistline member were joined was prepared. The cylinder is created according to the measurement sample. An acrylic plate cylinder having an outer circumference of 70% of the length of the waist region of the absorbent article in the stretched state is prepared. In the present embodiment, a measurement sample to be sequentially used for disposable diapers for babies and infants, and a cylinder having a circumference of 46 cm was prepared. With the absorbent article attached to the cylinder, an air pack is attached to the center of each region in the width direction. The air pack is inserted between the absorbent article and the cylinder. The diameter of the air pack is 15 mm. The air pack includes four portions from the front first region FC1 to the front fourth region FC4, four portions from the rear first region RC1 to the rear fourth region RC4, and four portions from the side first region SR1 to the side fourth region SR4. Attach to each of the places. The air pack is mounted so that the center of the air pack is located at the center in the width direction and the center in the longitudinal direction of each region.

  The pressure of each part is measured using a total of 12 air packs. Each part is measured three times and the average value is calculated. The wearing pressure in the front first region FC1 to the front fourth region FC4 and the wearing pressure in the rear first region RC1 to the rear fourth region RC4 are average values. The wearing pressure in the side first region SR1 to the side fourth region SR4 is an average value of the pressure in the left and right regions.

  It is possible to provide an absorbent article that can more easily perform a leg raising operation.

DESCRIPTION OF SYMBOLS 10 Absorbent article 20 Front waist member 22 Front elastic member 30 Rear waist member 32 Rear elastic member 50 Absorbing core 60 Side joint FC Front center area FC1 Front first area FC2 Front second area FC3 Front third area FC4 Front fourth Region SR Side region SR1 Side first region SR2 Side second region SR3 Side third region SR4 Side fourth region RC Rear center region RC1 Rear first region RC2 Rear second region RC3 Rear third region RC4 Rear fourth region NR Joining area S1 Front waist area S2 Rear waist area S3 Inseam area L Longitudinal direction W Width direction

Claims (8)

Longitudinal and width directions orthogonal to each other,
Front waist area, rear waist area, and crotch area disposed between the front waist area and the rear waist area,
A side joint that joins the outer part of the front waist area and the outer part of the rear waist area,
A front central area located at the center in the width direction of the front waist area,
A rear central area located at the center in the width direction of the rear waist area,
An absorbent article having a front central region and a side region disposed between the rear central region,
The front central region is a front first region of 0 to 30% of a total length in the longitudinal direction of the front central region from a front edge of the front central region, and a front first region of the front central region from a front edge of the front central region. A front second region of 30 to 60% of a total length in a longitudinal direction, and a front third region of 60 to 80% of a total length in a longitudinal direction of the front central region from a front edge of the front central region;
The side region has a side third region of 60 to 80% of a total length in the longitudinal direction of the side region from a front edge of the side region, and a total length of the side region in the longitudinal direction from the front edge of the side region. 80% to 100% of the side fourth region;
The pressure at the time of wearing the absorbent article in the front first area and the pressure at the time of wearing the front second area are lower than the pressure at the time of wearing the front third area,
The absorbent article, wherein the pressure during the wearing of the side fourth region is lower than the pressure during the wearing of the side third region.   The pressure at the time of wearing of the front third area is 1.2 times or more and 3.5 times or less with respect to the pressure of the front first area and the pressure at the time of wearing of the front second area. The absorbent article according to the above. In the front waist region, a thread-shaped or band-shaped front elastic member that expands and contracts in the width direction, and an elastic sheet that expands and contracts at least in the width direction are provided.
The front elastic member is disposed in the front third region,
The absorbent article according to claim 1, wherein the stretchable sheet is disposed in the front first region and the front second region.   The absorbent article according to claim 3, wherein the front elastic member and the elastic sheet are arranged in the front third region.   2. The absorbent article according to claim 1, wherein the pressure at the time of wearing of the third side region is 3.0 times or more the pressure at the time of wearing of the fourth side region. 3. The side region has a second side region of 30 to 60% of a total length in a longitudinal direction of the side region from a front edge of the side region,
The absorbent article according to any one of claims 1 to 5, wherein the pressure of the side fourth region during the wearing is lower than the pressure of the side second region during the wearing. The crotch area, the absorbent body disposed astride the front waist area and the rear waist area,
On the non-skin surface side of the absorbent body, at least an exterior body arranged in the rear waist area,
The non-joining region where the outer portion of the absorbent main body and the exterior body are not joined to each other is provided at a front end of the rear waist region, according to any one of claims 1 to 6. Absorbent articles.   The length in the width direction of the absorbent main body at a front edge of the rear waist area is longer than the width direction of the absorbent body at a rear edge of the front waist area. Absorbent articles.

Images