KR20180090381A - Absorbent article - Google Patents

Abstract

The absorbent core 31 of the absorbent article has a first low unit weight region 41 extending in the width direction between the excretion mouth contact region and the rear region and a center line CL connecting the center in the width direction in the rear region The second low-unit weight region 42 extending in the front-rear direction and the front-rear pressing portion 88 extending in the front-rear direction along the center line in the rear region. The absorbent core in the excretion hole contact region has a unit weight that is higher than the unit weight of the first low unit weight region and the second low unit weight region. And the second low unit weight region is connected to the first low unit weight region. At least a part of the front and rear pressing portions are disposed in the second low unit weight region.

Description

Absorbent article

The present invention relates to an absorbent article to be attached to an undergarment such as a sanitary napkin.

Absorbent articles such as sanitary napkins, panty liners, and incontinence pads for absorbing menstrual blood or underbelly are known. Particularly, the sanitary napkin of the absorbent article is tightly attached to the body of the wearer by the underwear and is brought into close contact with the body of the wearer (Patent Document 1). An absorbent article such as a sanitary napkin has a topsheet, a backsheet, and an absorbent body. The absorber is provided between the top- and backsheets. The absorbent body has a middle portion that protrudes convexly toward the skin contact surface side. The used part is a part of the absorber which is thicker than the used part. The used parts are individually provided in front of and behind the absorbent article. A bending point is formed between the used part in the front and the used part in the rear. The bending starting point is a recess for joining the surface sheet and the absorber to each other by embossing.

Patent Document 1: JP-A-2006-239162

In the absorbent article described in Patent Document 1, the front and rear used portions are arranged at the crotch portion of the wearer's crotch, that is, the vaginal opening, and the rear used portion is disposed at the cracked portion of the buttocks above the back of the wearer's crotch. As a result, the absorber is brought into close contact with the hip bone of the buttocks.

However, in the posture in which the wearer is lying, the used portion in the rear is disposed just below the wearer's buttocks, i.e. between the buttocks and the bottom. The used part constitutes a particularly high rigidity area. Therefore, the wearer is likely to feel a sense of discomfort in a lying posture.

Therefore, there is a demand for an absorbent article which is less likely to feel a sense of discomfort in a lying posture and which is easy to adhere the absorbent body along the hip bone.

The absorbent article (absorbent article) according to the present disclosure has an excretory bag contact area (excretory-mouth contact area (the excretory bag contact area) facing the excretion of the wearer, And an absorbent core (absorbent core (31)) disposed at least in the excretory port contact region and the rear region, the back side region (rear region (S3)) positioned at the rear side of the excretion port contact region Wherein the absorbent core has a first low unit weight region (first low unit weight region (41)) extending in the width direction between the excretion hole contact region and the rear region, and a second low unit weight region (Second low-basis weight region 42) extending in the front-rear direction along a center line (center line CL) connecting the centers of the first and second low- Extended front and rear Wherein the absorbent core of the excretion mouth contact region has a unit weight higher than a unit weight of the first low unit weight region and the second low unit weight region, And the second low-unit weight region is connected to the first low-basis weight region, and at least a part of the front-end compression unit is disposed in the second low-unit weight region.

1 is a plan view of an absorbent article in one embodiment.
Fig. 2 is a plan view of the absorbent article seen from the opposite side to Fig. 1;
3 is a cross-sectional view of the absorbent article along the line AA of Fig.
4 is a cross-sectional view of the absorbent article along the line BB of Fig.
Fig. 5 is a sectional view of the absorbent article shown in Fig. 1 mounted on a wearer.
Fig. 6 is a sectional view of the absorbent article shown in Fig. 1 mounted on a wearer. Fig.

At least the following will become apparent from the description of the present specification and the accompanying drawings.

Rear direction and the width direction orthogonal to each other,

An excretory bag contact area opposed to the excretion of the wearer,

A rear region located on the rear side of the excretion port contact region,

And an absorbent core disposed at least in the excretion port-contacting region and the rear region,

Wherein the absorbent core includes a first low-unit weight region extending in the width direction between the excretion mouth contact region and the rear region, and a second low-unit weight region extending in the front-rear direction along a center line connecting the center in the width direction in the rear region A second low-unit weight region, and a front-rear pressing portion extending in the front-rear direction along the center line in the rear region,

Wherein the absorbent core of the excretion mouth contact region has a unit weight higher than the unit weight of the first low unit weight region and the second low unit weight region,

The second low unit weight region being connected to the first low unit weight region,

And at least a portion of the front-to-rear pressing portion is disposed within the second low-basis weight region.

According to this absorbent article, in the posture in which the wearer is lying, the rear region of the absorbent article is disposed just below the wearer's buttocks, i.e. between the buttocks and the bottom. Since the second low-unit weight region formed in the rear region is relatively low in rigidity, the discomfort given to the wearer is small. Further, the first low-unit weight region and the second low-unit weight region make it difficult for the absorbent material constituting the absorbent core to move between the excretion accessory region, the right portion of the rear region, and the left portion of the rear region . Accordingly, localized concentration of the absorbent material constituting the absorbent core can be suppressed by the operation during wearing. As a result, it is possible to alleviate the discomfort of the wearer while wearing the absorbent article. Therefore, the wearer does not easily feel a sense of discomfort even in a lying posture.

The center of the rear region in the width direction is liable to protrude toward the wearer's body due to the force directed from the outside to the inside of the absorbent article because the second lower unit weight region is formed in the rear region. In addition, the front and rear pressing portions extending in the front-rear direction are disposed in the second low-unit weight region. Therefore, the center of the rear region in the width direction tends to protrude toward the wearer's body with the front and rear pressed portions as apexes. Thus, in the rear region, the absorbent article can be deformed to match the shape of the wearer's hip bone in a lying posture. As a result, the wearer can obtain a comfortable feeling of close contact with the absorbent article at the buttocks.

Further, by the first low-unit weight region, the influence of the deformation of the absorbent body in the excretion port contact region on the deformation of the absorbent body in the rear region is suppressed, and the absorbent article is easily deformed independently in the excretion port- have. Thus, the excretory contact area of the absorbent article can be arranged along the shape of the wearer's crotch, and the rear area of the absorbent article can be arranged along the shape of the wearer's buttocks.

As such an absorbent article,

Wherein the absorbent core includes a pair of first side crimping portions disposed on both sides with the excretion mouth contact region interposed therebetween and extending in the longitudinal direction and a pair of second side crimping portions extending in the front- And a pair of second side squeezing portions extending in the front-rear direction,

The first side crimping portion and the second side crimping portion are preferably spaced apart from each other in the longitudinal direction.

According to this absorbent article, since the first side press portion and the second side press portion are apart from each other in the front-rear direction, the influence of the deformation of the absorber in the excretion accessory contact area S1 on the deformation of the absorber in the rear region can be more effectively . On both sides of the second low-unit weight region, a pair of second side press portions extending in the front-rear direction is provided. The second side squeeze portion has a relatively high rigidity and therefore becomes a starting point of deformation of the absorbent core. The second low unit weight region sandwiched between the pair of second side squeeze portions can easily rise to the wearer's body side. Accordingly, the wearer can be fitted to the body of the wearer more comfortably, thereby providing a comfortable feeling of contact with the wearer.

As such an absorbent article,

Wherein the absorbent core has a third low unit weight region extending outward in the width direction from the second low unit weight region and having a unit weight lower than the unit weight of the absorbent core in the excretion hole contact region,

And the second side squeezing portion has a divided end portion that is divided in the back-and-forth direction within the third low-basis weight region.

According to such an absorbent article, since the absorbent core of the rear region can be deformed from the third low-unit weight region section, the absorbent article is more likely to come into close contact with the rounding along the back and forth direction of the body. Further, since the divided portion of the second side squeeze portion is provided in the third low unit weight region, the absorbent core is liable to be deformed by the difference in rigidity of the divided portion. Therefore, since the absorbent core in the rear region can be deformed from the third low-unit weight region and the divided portion as a starting point, the absorbent article is more likely to come into close contact with the rounding along the front-rear direction of the body.

As such an absorbent article,

It is preferable that the second side squeeze portion has a first region extending rearward from the split end portion and a second region extending to the rear end edge of the first region and bent toward the front side.

According to such an absorbent article, the rigidity of the absorbent core can be increased in the region behind the dividing portion to prevent the collapse of the absorbent core. Particularly, the vicinity of the rear end of the absorbent core is prone to collapse due to a large number of portions abutting on the body with respect to the body. The first region and the second region are formed in a region behind the divided end portion corresponding to the vicinity of the rear end of the absorbent core to increase the rigidity in the vicinity of the rear end portion of the absorbent core to suppress the collapse of the absorbent core, have.

As such an absorbent article,

Wherein the absorbent core has a third low unit weight region extending outwardly from the second low unit weight region in the width direction and having a unit weight lower than the unit weight of the absorbent core in the excretion hole contact region, It is preferable to have a width crimping portion extending in the width direction within the low unit weight region.

According to this absorbent article, since the absorbent core of the rear region can be deformed from the third low-unit weight region and the width press-fitting portion, the absorbent article is more likely to be closely adhered to the body along the forward and backward directions L . In addition, by having the width crimping portion, the rigidity in the width direction of the third low-basis weight region may be increased. Depending on the wearer, the absorbent article may be used for a long time and the absorbent article may be twisted to leak the body fluid. Leakage of the body fluids is particularly likely to occur in the rear region, which is liable to be deformed when walking or lying down. Since the width squeeze portion is relatively high in rigidity, it is possible to suppress unintended deformation of the absorbent core in the rear region and effectively prevent deformation when walking or lying.

As such an absorbent article,

Wherein the non-skin face sheet positioned on the non-skin face side of the absorbent core is provided with an adhesive region for fixing the absorbent article to the undergarment,

Wherein the adhesive region has a first adhesive region located forward of the first low unit weight region and a second adhesive region located rearward of the first low unit weight region,

The first adhesive region and the second adhesive region are preferably spaced apart from each other in the longitudinal direction.

According to such an absorbent article, since the first adhesive region and the second adhesive region are spaced apart from each other, a separate deformation or movement is performed in a region forward of the first low unit weight region and a region rearward of the first low unit weight region It becomes easy to realize. It can be more easily deformed into different shapes in accordance with the shape of the body of the wearer, in the excretion hole contact area and the back side area.

As such an absorbent article,

Wherein the excretion port contact region has a used portion thicker than the thickness of the outer edge of the absorbent core,

The angle formed by the rear surface of the middle portion of the absorbent article and the back surface of the middle portion of the absorbent article extending in the thickness direction from the trailing edge of the middle portion of the absorbent article and the non- Is larger than the angle formed by the front surface of the used part absorber extending in the thickness direction from the front end edge of the used part and the skin non-facing surface of the used part absorber.

According to such an absorbent article, since the angle formed by the front surface of the used part and the skin facing surface is relatively small, the thickness of the front part of the used part is gently changed and can be brought closer to the front than the excretion of the wearer. On the other hand, since the angle formed by the rear surface of the used part and the skin non-facing surface is relatively large, a bending origin is easily formed on the rear surface of the used part. It is possible to form a deformation starting point due to the rear end edge of the used part between the excretion hole contact area and the rear area so that it can be more easily deformed into different shapes in accordance with the shape of the body of the wearer in the excretion port contact area and the rear area.

As such an absorbent article,

Wherein the absorbent core has a central crimping portion extending in the front-rear direction along the center line in the rear region,

It is preferable that at least a part of the center squeezed portion is overlapped with the front and rear squeezed portions.

According to such an absorbent article, when the absorbent article is superimposed on the front and rear pressed portions, the center in the widthwise direction in the rear region becomes thinner and deformed with the center of the rear region in the width direction as the apex, . Further, the absorbers on both sides can be divided with the middle press portion and the front and rear press portion interposed therebetween. By dividing the absorber into a plurality of absorbers, it is possible to suppress collapse of the absorber when the absorber is used for a long period of time.

=== Regarding the absorbent article according to the present embodiment ===

Hereinafter, an absorbent article according to an embodiment will be described with reference to the drawings. The absorbent article may be any absorbent article such as panty liner (large sheet), sanitary napkin, incontinence pad, or the like. In the following embodiments, a disposable sanitary napkin is described as an example of the absorbent article.

In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. It should be noted, however, that the drawings are schematic, and the ratios of the dimensions and the like may be different from those of the real world. Therefore, specific dimensions and the like should be judged based on the following description. In addition, the drawings may include portions having different dimensional relationships or ratios with each other.

(1) Overall structure of absorbent article

1 is a plan view of an absorbent article in one embodiment. Fig. 2 is a plan view of the absorbent article seen from the side opposite to Fig. 1. Fig. 3 is a cross-sectional view of the absorbent article taken along the line A-A in Fig. 4 is a cross-sectional view of the absorbent article taken along the line B-B in Fig.

The absorbent article 1 has a longitudinal direction L, a width direction W and a thickness direction T. [ The back-and-forth direction L is a direction extending from the front side (back side) to the back side (back side) of the wearer, or a direction extending forward from the back side of the wearer. The width direction W is a direction orthogonal to the longitudinal direction L. [ The thickness direction T is a direction extending from the wearer's skin surface side T1 to the non-skin surface side T2 and a direction orthogonal to the anteroposterior direction L and the width direction W. [ The skin surface side T1 corresponds to the side facing the wearer's skin at the time of use. The non-skin surface T2 corresponds to the side opposite to the skin surface T1 at the time of use, that is, toward the wearer's skin.

The absorbent article 1 has an excretion mouth contact area S1, a front area S2 and a rear area S3. The excretory bag contact area S1 is an area opposed to an excretion hole (e.g., vaginal opening) of the wearer. When the absorbent article is attached to the undergarment, the excretory bag contact area S1 is located in the crotch part of the undergarment. That is, the excretory bag contact area is an area disposed between the crotch of the wearer, that is, between the legs of the wearer.

The front region S2 is located in front of the excretory port contact region S1. The front edge of the front region S2 defines the front edge of the absorbent article 1. The rear region S3 is located behind the excretory port contact region S1. The trailing edge of the rear region S3 defines the trailing edge of the absorbent article 1. The length of the rear region S3 in the forward and backward direction L may be longer than the length of the excretory port contact region S1 in the forward and backward directions L. [

A wing 3 may be provided in the excretory bag contact area S1. The rear region S3 may be provided with a hip flap 4 that bulges outward in the width direction W. [ The front edge of the blade 3 is defined by the base of the blade 3 and corresponds to a portion located on the front side of two portions recessed inwardly in the widest direction W. [ The front edge of the blade 3 may define the boundary between the excretory port contact area S1 and the front area S2. The rear edge of the blade 3 is defined by the base of the blade 3 and corresponds to the rear portion of the two portions recessed inwardly in the widest direction W. [ The rear end edge of the blade 3 may be located between the excretory port-contacting area S1 and the rear-side area S3. The front end edge of the first low-unit weight region 41 may define the rear end edge of the excretion mouth contact region S1 and the rear end edge of the first low-unit weight region 41 may define the rear end region S3. The front end edge of the front end may be defined.

The absorbent article 1 has a skin face sheet 10, a non-skin face sheet 20, and an absorbent body 30. The skin surface sheet 10 is provided on the skin surface side T1 of the absorbent body 30. The non-skin face sheet 20 is provided on the non skin face side T2 of the absorbent body 30. The absorber 30 is provided between the skin surface sheet 10 and the non-skin surface sheet 20.

The skin surface sheet 10 may have a topsheet 11 and a side sheet 12. The topsheet 11 is a liquid-permeable sheet that transmits a liquid such as body fluids. The topsheet 11 covers the central portion of the absorbent body 30 in the width direction W. As shown in Fig. The topsheet 11 may extend from the front region S2 to the rear region S3 in the front-rear direction L.

The side sheet 12 covers the outer edge of the topsheet 11 in the width direction W and extends outward in the width direction W than the topsheet 11. The side sheets 12 can be made of the same material as the topsheet 11. The side sheet 12 may be disposed on the outer edge of the absorbent body 30 in the width direction W, the blade 3 and the hip flap 4. [ The non-skin cotton sheet 20 is a liquid-pervious sheet.

The absorber 30 is disposed at least in the excretion hole contact area S1 and the rear area S3. Further, the absorber 30 may extend from the excretory port-contacting area S1 to the front area S2. The absorbent body 30 has an absorbent core 31 that includes an absorbent material that absorbs liquid and a core wrap (not shown) that surrounds the absorbent core 31. The core wraps only need to cover the absorbent core 31 at least on the skin surface side than the absorbent core 31. The absorbent material constituting the absorbent core 31 may be formed of, for example, hydrophilic fibers, pulp and superabsorbent polymer (SAP). The core wrap may be composed of, for example, a nonwoven fabric or a tissue sheet.

As described above, the absorbent article 1 has the wings 3 and the hip flaps 4. The wings 3 and the hip flaps 4 extend outward in the width direction W from the outer edge of the absorbent core 31 in the excretion accessory area S1.

The wings 3 and the hip flaps 4 may be constituted by stacking the side sheets 12 and the non-skin facing sheets 20 together. The wings (3) are configured to be foldable toward the non-skin facing sheet (20) side. The blade (3) folds toward the non-skin side of the crotch part of the undergarment at the time of use.

The hip flap 4 is located on the rear side of the blade 3 and is provided on the rear region S3. The hip flap 4 is placed between the undergarment and the buttocks of the wearer without being folded in use. In the present embodiment, the hip flap 4 is not provided with an absorbent material. Instead, the heap flap 4 may be provided with an absorbent material.

The " thickness of the absorbent core " in this specification is measured by the following measuring method.

When the absorbent article 1 is sealed in a package or the like, the sample is taken out of the package and left in the state of 20 ° C ± 2 ° C and 60% ± 5% RH for 12 hours.

The measuring position is the center of the article in the width direction of the absorbent core. In the measurement, the elastic member of the absorbent article is stretched and measured, not in the contracted state. Further, portions other than the absorbent core such as a skin cotton sheet and a non-skin cotton sheet other than the absorbent core are removed. A dial gauge PEACOCK manufactured by Ozaki Seisakusho Co., Ltd. is used. A test piece having a diameter of 10 mm and a size of 30 mm x 30 mm is prepared, and the thickness of the test piece is measured. The measuring instrument is adjusted so that the measured pressure on the test piece is 3 g / cm 2. Here, for the 10 samples, the above-described measurement was performed in each state, and the average value was taken as the length.

In this specification, the " unit weight and density of the absorbent core " are measured by the following measuring methods.

When the absorbent article 1 is sealed in a package or the like, the sample is taken out of the package and left in the state of 20 ° C ± 2 ° C and 60% ± 5% RH for 12 hours.

In the absorbent article packaged by the package, the package is opened, the folded absorbent article is developed, and the thickness and the area of the portion for measuring the unit weight and density are measured. Subsequently, the unit for measuring the unit weight and the density is cut out from the absorbent article, and the weight of the cut portion is measured. Subsequently, the portion other than the absorbent core such as the topsheet and the backsheet is removed from the cut-out portion, and the weight of the absorber is measured. The unit weight is calculated on the basis of the weight of the absorber, the unit weight, and the area of the portion for measuring the density. The density is calculated based on unit weight and thickness.

In this specification, the " length " is measured by the following measuring method.

When the absorbent article 1 is sealed in a package or the like, the sample is taken out of the package and left in the state of 20 ° C ± 2 ° C and 60% ± 5% RH for 12 hours. Subsequently, the length of this state of the measurement target site is measured by using a spring metering (tape: vinyl chloride coating with glass fiber) manufactured by Shinwa Measurement Co., Ltd. to follow the measurement target site. Here, the above-mentioned measurement was carried out for each of the 10 samples in each state, and the average value was taken as the length.

With respect to the " angle of the used portion of the absorber " which will be described later in detail, the " angle of the used portion of the absorber " in this specification is measured by the following measuring method. In the absorbent article packaged with the package, the package is opened, the folded absorbent article is opened, a photograph is taken from the side of the absorbent article, and the angle of? And? Shown in FIG.

(2) Detailed structure of absorber

Next, the configuration of the absorber 30 will be described more specifically. The absorbent core 31 has a used portion 33 at least in the piercing contact area S1. The used portion 33 may extend from the excretory port contact area S1 to the front area S2. The used parts 33 are arranged from the excretion mouth contact area S1 to the center line CL. The center line is a line connecting the center in the width direction of the absorbent article, and is a line along the anteroposterior direction. The used portion 33 means a region thicker than the thickness of the outer edge of the absorbent core. The unit weight of the absorbent material of the used portion 33 may be higher than the unit weight of the absorbent core 31 in the region other than the used portion 33 in the excretion mouth contact region S1. Preferably, the absorbent core 31 on the rear side of the first low-basis weight region 41 is thinner than the thickness of the middle portion 33. [ More preferably, the absorbent core 31 in the entire rear region S3 is thinner than the thickness of the used portion 33. [ Since the used portion 33 is relatively thick, it is easy to adhere to the excretion of the wearer. On the other hand, since the thickness of the absorbent core of the rear region is comparatively small and the rigidity of the rear region is relatively low, it is easy to follow the movement of the wearer's legs, and the discomfort felt when the legs are moved can be reduced. The rear end edge of the used portion 33 is the front end edge of the first low-basis weight region 41. [ The front edge of the used portion 33 is adjacent to the first side crimp portion 81 described later.

The rear surface 33RS of the middle portion 33 extending in the thickness direction T from the rear end edge 33R of the middle portion 33 in the cross section along the longitudinal direction L of the absorbent article 1 shown in Fig. And the skin non-opposing face of the used portion 33 is defined by the front face 33FS of the used portion 33 extending from the front edge 33F of the used portion 33 in the thickness direction T, Is larger than the angle beta formed by the skin non-facing surface of the used portion 33. [ The angle alpha is an angle formed by the rear surface 33RS of the middle portion 33 and the skin facing surface of the middle portion 33 extending forward from the rear edge 33R of the middle portion 33. [ The angle beta is an angle formed by the front face 33FS of the used portion 33 and the skin facing surface of the used portion 33 extending rearward from the front edge 33F of the used portion 33. [ Since the angle formed by the front surface of the used part and the skin facing surface is relatively small, the thickness of the front edge of the used part is gently changed and can be made closer to the front than the excretion of the wearer. On the other hand, since the angle of the rear end edge side of the used portion is relatively large, the rear end edge of the used portion is liable to become a bending fulcrum, and a starting point of deformation due to the rear end edge of the used portion can be formed between the discharging port- And can be deformed into different shapes according to the shape of the wearer's body in the rear region. Further, since the trailing edge of the used portion is likely to become a bending origin, the absorbent body is deformed by the bending point in the lying posture, and can be deformed to be more fit to the body.

The absorber 30 has a first low unit weight region 41, a second low unit weight region 42 and a third low unit weight region 43. Here, the " low unit weight region " means a region made up of the absorbent core 31 having a lower unit weight than the surrounding absorbent core 31, or a region having no absorbent core 31. Thus, the " low unit weight region " is a concept including a region where the unit weight of the absorbent core 31 is zero. In the posture in which the wearer is lying, the rear region of the absorbent article is disposed just below the buttocks of the wearer, i.e. between the buttocks and the bottom. Since the second low-unit weight region formed in the rear region is relatively low in rigidity, the discomfort given to the wearer is small. Further, by the first low-unit weight region and the second low-unit weight region, the absorbent material constituting the absorbent core is disposed between the excretory port contact region (or wing region), the right portion of the rear region, and the left portion of the rear region . Accordingly, localized concentration of the absorbent material constituting the absorbent core can be suppressed by the operation during wearing. As a result, it is possible to alleviate the discomfort of the wearer while wearing the absorbent article. Therefore, the wearer does not easily feel a sense of discomfort even in a lying posture.

The unit weight of the absorbent core 31 in the low unit weight areas 41 to 43 is preferably 60% or less of the unit weight of the absorbent cores (excluding the middle part) around the low unit weight areas 41 to 43 , And more preferably 50% or less.

Even when the absorbent core 31 is a region having no " low unit weight region ", the core wrap surrounds the entire absorbent core 31 over the low unit weight region. In this case, even if the absorbent core 31 is divided into a plurality of regions, the absorbent body 30 is integrally formed by the core wraps.

The first low-unit weight region 41, the second low-basis weight region 42 and the third low-basis weight region 43 become boundaries where the rigidity of the absorber 30 changes. Therefore, the first low-basis weight region 41, the second low-basis weight region 42 and the third low-basis weight region 43 correspond to regions where the absorber 30 is susceptible to deformation.

The first low-unit weight area 41 extends in the width direction W between the excretion mouth contact area S1 and the rear area S3. The first low unit weight region suppresses the influence of the deformation of the absorbent body in the excretion port contact region on the deformation of the absorbent body in the rear region so that the absorbent article is easily deformed independently in the excretion port contact region and the rear region. Thus, the excretory contact area of the absorbent article can be arranged along the shape of the wearer's crotch, and the rear area of the absorbent article can be arranged along the shape of the wearer's buttocks. The first low-unit weight region 41 is provided on the rear side of the center of the blade 3 in the forward and backward direction L and on the forward side of the rear edge of the absorbent body 30. The first low-unit weight region 41 is provided so as to extend over the rear edge of the blade 3 in the front-rear direction L. Accordingly, since the first low-unit weight region 41 is arranged in the front-rear direction at the rear end edge of the blade serving as the base end portion of the blade, the force applied to the blade from the wearer's leg is divided in the first low- , It is possible to suppress the propagation of the force to the rear region.

In the present embodiment, the first low-unit weight region 41 has a curved shape in which the center of the widthwise direction W of the first low-unit weight region 41 protrudes rearward. More specifically, the center of the width direction W of the first low-unit-weight area 41 is located behind the outer edge of the first low-unit-weight area 41. As a result, the first low-unit weight area is bulged convexly toward the rear together with the underwear when laid down, and is extruded in a direction away from the body. When lying downward, the bulged portion of the wearer's buttocks is crushed and the crushed portion moves to the crotch side. The first low-unit weight area is away from the body, so that deformation of the buttocks when lying down can be absorbed. Therefore, the excretory contact area and the rear area, which are disposed with the first low unit weight area sandwiched therebetween, are maintained in a shape along the rounding of the body, so that the entire absorbent article is arranged along the rounding of the body.

Preferably, the length of the first low unit weight region 41 in the width direction W is 25 mm or more. This prevents the movement of the absorber 30 in the excretion port contact area S1 from being transmitted to the rear area S3. The first low-unit weight region 41 may extend from one end of the absorber 30 to the other end in the width direction W. [ This effectively prevents the movement of the absorber 30 in the excretion port contact area S1 from being transmitted to the rear region S3. The outer edge of the first low-unit weight region 41 may be located inside the outer edge of the absorbent core 31. [ As a result, since the region having a high unit weight of the absorbent material is disposed on both sides of the first low-unit weight region, it is possible to prevent the body fluid from leaking sideways.

The length of the first low-unit weight region 41 in the anteroposterior direction L is preferably 10 mm or more and 50 mm or less at the position of the center line CL of the absorbent article 1, mm or more and 30 mm or less. Since the length in the front-rear direction of the first low-unit weight region is 10 mm or more, the deformation of the excretion port-contacting region and the deformation of the rear region can be effectively divided. In addition, since the length in the anteroposterior direction of the first low-unit weight region is 50 mm or less, the body fluid that has flowed to the buttock region by the rear region can be absorbed while absorbing the deformation of the body by the first low- It is difficult for the wearer to feel the anxiety that the menstrual blood flows to the buttocks side, and a relief feeling at the time of wearing can be obtained.

The second low-unit weight region 42 extends in the back-and-forth direction L along the centerline CL of the absorbent article in the rear region S3. And the second low-unit weight region 42 may extend linearly in the front-rear direction L. The center of the rear region in the width direction is liable to protrude toward the wearer's body due to the force directed from the outside to the widthwise direction from the outside in the width direction of the absorbent article. Thus, in the rear region, the absorbent article can be deformed to match the shape of the wearer's hip bone in a lying posture. As a result, the wearer can obtain a comfortable feeling of close contact with the absorbent article at the buttocks. Also, it is preferable that the second low-basis weight region 42 is connected to the first low-basis weight region 41. Accordingly, the deformation starting point extending in the width direction by the first low-unit weight region and the deformation starting point extending in the front-rear direction by the second low-unit weight region can be interlocked with each other to reach the deep position of the hip bone It can be deformed. Further, the convex shapes formed by the used portion and the second low-unit-unit weight region are similarly formed along the front-back direction of the body, and the body-absorbable region is continuous in the anteroposterior direction. Therefore, the body fluid adhered to the skin of the wearer can be absorbed quickly, the body fluid can be prevented from flowing on the surface of the skin, and the leakage of the body fluid can be reduced.

The rear end edge of the second low-unit weight region 42 is located forward of the rear edge of the absorbent core and rearward of the center of the rear region S3 in the anteroposterior direction. In a cross section along the anteroposterior direction L of the body of the wearer, grooves (hip ridges) between the buttocks are present in the region from the back of the perineum to the corolla. During use of the absorbent article, the second lower unit weight region 42 is disposed in the region of the wearer's hip bone. And the second low unit weight region corresponds to the region. On both sides of the second low-unit weight region 42, the unit weight of the absorbent core is higher than that of the second low-basis weight region 42, and a high cushioning region is disposed. Both sides of the second low-unit weight area 42 are gently contacted with the coccyx bone, and irritation to the wearer's skin can be prevented.

The third low-unit weight region 43 extends outward in the width direction W from the second low-unit weight region 42 in the rear region S3. By having the third low-unit weight region 43, a deformation starting point extending in the width direction is formed on the absorbent core of the rear region. Since the absorbent core can be deformed from the third low unit weight region, the absorbent article is more likely to come into close contact with the rounding along the back and forth direction of the body. The third low-unit-weight region 43 may be connected to the second low-unit-weight region 42. As a result, the deformation starting point extending in the width direction by the third low-unit weight region and the deformation starting point extending in the front-rear direction by the second low-unit weight region can be interlocked with each other, have.

The outer edge of the third low-unit weight region 43 in the width direction W is positioned inside the outer edge of the absorbent core 31 of the rear region S3. The absorbent material having a unit weight higher than that of the third low-unit weight region is disposed outside the third low-unit weight region 43 in the width direction, and the body fluid can be absorbed by the absorbent material, . Further, the unit weight of the outer edge of the absorbent core is sufficient to eliminate the wearer's anxiety about leaking. A plurality of third low-unit-weight regions 43 are provided in the front-rear direction L at intervals. Therefore, a plurality of fiducial points generated by the third low-unit weight region 43 are formed at intervals in the back-and-forth direction L, and the absorbent core can be further disposed along the rounded ridge.

(3)

The absorbent article (1) has a pressed portion formed by at least compressing the absorbent core (31) in the thickness direction (T). The region where the pressing portion is formed is a portion having a higher density than the region where the pressing portion is not formed. The crimp portion has a first side crimp portion 81, a second side crimp portion 82, a width crimp portion 83, a center crimp portion 84 and a front-rear crimp portion 88 1).

The first side crimping portion 81 is provided at least in the excretion mouth contact area S1. The first side crimping portion 81 is formed by compressing the topsheet 11 and the absorbent body 30 in the thickness direction T. [ The first side crimping portion 81 is disposed on both sides with the intermediate portion 33 therebetween and extends in the forward and backward directions L. [ The first side crimp portion 81 defines the outer edge of the middle portion 33. [

The first side crimping portion 81 is curved toward the width direction W in the vicinity of the front end edge of the absorbent core 31 and continues in a U-shape. Instead, the first side crimping portion 81 may be provided on both sides in the width direction W of the used portion 33 separately. That is, a pair of the first side crimping portions 81 may be separately provided in the form of being separated from each other. Accordingly, when a force directed from the outside in the width direction to the inside in the width direction is applied to the absorbent article, the force is easily transmitted to the used portion through the first side crimping portion 81, and the used portion can easily come into close contact with the vaginal opening .

The second side crimping portion 82 is provided on both sides of the second low-unit weight region 42 in the rear region S3. The second side crimping portion 82 is spaced apart from the second low unit weight region 42 and does not inhibit the deformation of the convexity due to the second low unit weight region. The second side crimping portion (82) extends along the front and rear direction (L). The first side crimping portion 81 and the second side crimping portion 82 are spaced apart from each other in the front-rear direction. A first low unit weight region (41) is disposed between the first side crimp portion and the second side crimp portion. Since the first side press portion and the second side press portion are apart from each other in the longitudinal direction, the influence of the deformation of the absorber in the excretion accessory contact area S1 on the deformation of the absorber in the rear region can be suppressed more effectively. Further, since the second side press portion is provided on both sides with the second low unit weight region 42 interposed therebetween, the second low unit weight region sandwiched between the pair of second side press portions is further raised . The absorbent core is further fitted to the body of the wearer to give a comfortable feeling of contact to the wearer.

The second side crimping portion 82 has a cut-off portion 82a which is divided in the front-rear direction. The dividing portion is a portion where the absorber 30 and the topsheet 11 are not compressed in the thickness direction. The dividing portion 82a is provided in the third low-unit weight region. The absorbent core is liable to be deformed by the stiffness difference of the divided portions because the divided portions of the second side squeezed portions are provided in the third low unit weight region. Therefore, since the absorbent core in the rear region can be deformed from the third low-unit weight region and the divided portion as a starting point, the absorbent article is more likely to come into close contact with the rounding along the front-rear direction of the body. Particularly, in the case where the second low-unit weight region protrudes along the hip bone, the rear region may be difficult to deform along with the rounding along the front-rear direction of the body. Even in this case, the rear-side region can be easily deformed in accordance with the rounding along the front-rear direction L of the body by the third low-unit weight region and the branching portion which become the starting points of deformation. As a result, the wearer can be more fit to the body of the wearer, thereby providing a more comfortable contact feeling to the wearer.

The second side crimping portion 82 includes a first region 82b extending rearward from the dividing portion 82a and a second region 82c extending from the rear end edge of the first region 82b to be bent forward, Respectively. The first region 82b extends rearward from the rear end portion 82a and extends inward in the width direction toward the rear. The second area 82c has an arc shape bent forward. By having the second side crimping portion 82 having the first region and the second region, the rigidity of the absorbent core in the region behind the dividing portion can be increased. Therefore, even when the absorbent article is used for a long time, the absorbent core can be prevented from being collapsed or divided. Between the front edge of the first area 82b and the inner edge of the first area, the first area extends inward in the width direction from the outside in the width direction from the front to the back. Between the inner edge of the first region 82b and the trailing edge of the first region, the first region extends inward and outward in the width direction from the widthwise inner side from the front side to the rear side. The area behind the third low unit weight area is configured to contact the meganum. The shape of the body near the megaclasis is flat compared to the buttocks, but has a gentle rounding. Between the front edge of the first region 82b and the inner edge of the first region, the first region has a curved shape that gently extends inward in the width direction gently from the front to the rear, The core becomes gently convex with respect to the body. Therefore, the gap between the body and the absorbent article is reduced in the vicinity of the mexico-sphere, so that the wearer can obtain a sense of security that is comfortable to wear and is wrapped by the absorbent article.

At least a part of the second region 82c is disposed along the rear edge of the absorbent core 31. [ The vicinity of the rear end edge of the absorbent core is easily subjected to pressure by the buttocks in the lying posture, and torsion and friction are likely to occur. By forming the first region and the second region along the rear edge of the absorbent core 31, rigidity near the rear end of the absorbent core is increased, and even when the absorbent article is used for a long time, can do. One end (rear end edge) of the second region 82c continues to the first region 82b, and the other end (front end edge) does not continue to the first region 82b. Since the other end of the second region 82c is spaced apart from the first region 82b, the rear end of the absorbent core is not excessively hardened so that the wearer can continue to wear without discomfort. Further, in the structure in which the first left and right regions are connected to each other, the region behind the third low-unit weight region tends to remain flat, which may hinder deformation of the convexity due to the second low-unit weight region. However, since the left and right first regions are spaced apart from each other, the region behind the third low-unit weight region gently deforms convexly, and the deformation of the convexity due to the second low-unit weight region is not hindered. The shape of the second region is not limited to the embodiment, and may be a shape extending in the front-rear direction along the outer edge of the absorbent core. This makes it possible to increase the rigidity of the outer edge in the vicinity of the rear edge and the rear edge of the absorbent core.

The region located behind the third low-unit-weight region 43 (the third low-unit-weight region most rearward in the configuration having the plurality of third low-unit weight regions 43) And the second side crimping portion 82, as shown in Fig. More specifically, the two of the four compartments are divided by the center squeeze portion 84, the third low-unit weight region 43 located on the rear side, and the second side squeeze portion, And are provided on both sides with a portion 84 therebetween. The other two compartments are provided between the second side press portion, the outer edge of the absorbent core, and the trailing edge of the third low unit weight region 43 located on the rear side. By dividing into the plurality of compartments as described above, it is possible to suppress collapse of the absorber when the absorber is used for a long period of time because the absorber is less likely to be twisted as compared with a configuration not divided into sections. In particular, in the region behind the third low-unit-weight region 43, the pressure due to the buttocks is liable to be applied, and the absorber tends to warp. By dividing the region into a plurality of sections by the front-rear pressing section 88 and the second side pressing section, the deformation of the absorbent core can be restrained and brought into close contact with the body even when the pressure of the buttocks is applied repeatedly for a long time .

The width crimping portion 83 is formed in the third low-unit weight region 43 in the rear region S3. Since the width compression bonding portion 83 having a relatively high rigidity is provided in the third low-unit-weight region having relatively low rigidity, the portion having high rigidity and the portion having low rigidity are alternately formed, have. Therefore, the absorbent core can be deformed through more starting points and can be brought into close contact with the body. The width crimping portion 83 is constituted by an aggregate of a plurality of pointed crimping portions and extends in the width direction. The outer edge of the width crimp portion 83 is located on the inner side in the width direction than the second side crimp portion 82. The split portion 82a is disposed on the extension line extending from the width crimp portion 83 along the direction in which the width crimp portion 83 extends. The width-direction pressing portions 83 and the dividing portions 82a form a starting point of deformation extending in the width direction. A stiffness difference is generated within the starting point of deformation by constituting the starting points of deformation by the relatively low-strength split portion and the relatively wide-width width compression portion. Therefore, it is possible to form a plurality of bending fulcrums, and the absorbent core can be deformed through more starting points, so that it can be brought closer to the body.

Further, the absorbent core is divided into a plurality of compartments through a crimping portion or the like in the width direction. For example, on an imaginary line passing through the second side crimping portion and extending in the width direction, the absorbent core is divided into a plurality of compartments. Specifically, a region outside the second side crimp portion in the width direction, a region between the second side crimp portion and the second low unit weight region, an area between the outer edge of the second low unit weight region and the front and rear crimp portions, The region between the outer edge of the front and rear pressing portions and the front and rear pressing portions is defined by the stiffness difference. By deforming the absorbent core in a smaller section, it is possible to prevent the absorbent core from being collapsed and to prevent the absorbent core from being twisted even when used for a long time.

The center crimping portion 84 extends in the front-rear direction along the center line CL in the rear region. The center crimping portion 84 is formed in an area including a center line. It is possible to separate the absorbers on both sides with the center squeeze section therebetween. By dividing the absorber into a plurality of absorbers, it is possible to suppress collapse of the absorber when the absorber is used for a long period of time, because it is difficult to twist the absorber in comparison with the configuration in which the absorber is not divided. The center crimping portion 84 is constituted by an aggregate of a plurality of pointed crimping portions. The center crimping portions 84 are disposed at intervals in the front-rear direction L. An extension line extending from the width compression bonding portion 83 is located in a region between the width compression bonding portion and the width compression bonding portion adjacent to each other in the back and forth direction along the direction in which the width compression bonding portion 83 extends. The width compression bonding portion 83 and the central compression bonding portion 84 form a deformation starting point extending in the width direction. The region between the central crimping portions is relatively low in rigidity and can be easily deformed against the movement of the wearer. By forming the deformation starting point including the region having a low rigidity, deformation is more likely to occur in accordance with the movement of the wearer. In addition, by forming the deformation starting point including the region having a low rigidity, irritation to the skin can be reduced. At least a part of the center crimping portion (84) is placed over the front and rear crimping portion (88). A part of the center squeeze portion 84 is located behind the front-rear squeezing portion 88, and does not overlap the front-rear squeezing portion 88. By overlapping the front and rear press portions 88 and the center press portion, the center in the widthwise direction in the rear region becomes thinner and can be more tightly adhered to the gap of the body when it is deformed with the center of the rear region in the width direction as the apex .

The front-rear pressing portion 88 extends in the front-rear direction along the center line in the rear region. The front and rear pressing portions 88 are formed in the second low-unit weight region. The second low-unit weight region is provided with a region where both the front-rear pressing portion 88 and the center press-bonding portion 84 are formed, an area where one of the front-rear pressing portion 88 and the center pressing portion 84 is formed, A region where both the portion 88 and the center crimping portion 84 are not formed is provided. The front edge of the front and rear pressing portion 88 may be located in the first low unit weight region. Since the front end edge of the front and rear pressed portion 88 is disposed in the first low unit weight region having relatively low unit weight, the front end edge of the front and rear pressed portion can be prevented from being excessively hardened and can be softly contacted in the vicinity of the sensitive vaginal opening. The front edge of the front and rear pressing portion 88 may coincide with the front edge of the second low unit weight region. The second low unit weight region is fitted to the starting position (front edge) of the hip bone, and the absorbent core is brought into close contact with the starting position of the hip bone by the second low unit weight region and the front and rear pressing portions 88, It is possible to prevent the body fluids from flowing through the body. The rear end edge of the front and rear press portion 88 is located forward of the rear end edge of the third low unit weight region. On both sides in the width direction of the rear edge of the front-rear pressing portion 88, the inner edge of the width pressing portion 83 is disposed. A stiffness difference occurs at the rear end edge of the third low unit weight region as a boundary behind the rear end edge of the front and rear pressing portion 88. At the side of the front and rear pressing portion 88, There is a car. A stiffness difference is generated between the rear edge of the front and rear press portion 88 and the surrounding region, and it becomes easier to function as a starting point of deformation of the absorbent body. The region forward of the trailing edge of the third low-unit weight region contacts the hip bone, and the region behind the third low-unit weight region contacts the trabecular bone located behind the hip bone. The front and rear pressing portions 88 are not disposed in the absorbent core behind the rear end edge of the third low-unit weight region 43, and are not easily deformed by the front and rear pressing portions. Therefore, the durability of the area behind the third low-unit-weight area 43 is improved, and it is easy to keep the flattened state of the cochlea in a flat state.

The topsheet 11 and the absorbent body 30 are pressed against the skin surface side from the skin facing surface side by the first side crimping portion 81, the second side crimping portion 82, the width crimping portion 83 and the center crimping portion 84, And is formed by being compressed on the opposite surface. The front and rear pressing portions are formed by compressing the absorbent core 31 from the skin non-facing surface side to the skin facing surface.

(4)

2, the absorbent article 1 has an adhesive region 60 provided with a pressure-sensitive adhesive for fixing the absorbent article 1 to the undergarment S. As shown in Fig. The adhesive region 60 has a first main body sticking region 61 as a first sticking region, a second main body sticking region 62 as a second sticking region, a wing sticking region 63 and a hip flap sticking region 64 . These adhesive regions 61 to 64 are provided on the non-skin surface side of the non-skin surface sheet 20.

The first main body sticking area 61 is disposed forward of the second main body sticking area 62. The first main body sticking area 61 and the second main body sticking area 62 extend in the forward and backward directions L. [ The first main body sticking area 61 is spaced from the second main body sticking area 62 in the back and forth direction L. [ The first main body sticking area 61 is located in front of the first low unit weight area 41. [ The second body sticking area 62 is located behind the first low unit weight area 41. A wing adhesive region (63) is provided in the wing (3). A hip flap adhesive region 64 is provided in the hip flap 4. [ Since the first adhesive region and the second adhesive region are spaced apart from each other, it is easy to realize different deformation and movement in a region ahead of the first low-unit-weight region and a region behind the first low-unit-weight region . It can be more easily deformed into different shapes in accordance with the shape of the body of the wearer, in the excretion hole contact area and the back side area.

It is preferable that the first low-unit weight region 41 is disposed in an area which does not overlap with the adhesive regions 61 to 64 in the thickness direction T. [ More specifically, the first low-basis weight region 41 is provided in a region between the first main body sticking region 61 and the second main body sticking region 62. It is preferable that the second low-unit weight region 42 is disposed in a region that does not overlap the adhesive regions 61 to 64 in the thickness direction T. [ More specifically, the second low-unit weight region 42 is provided between the plurality of second body sticking regions 62. As a result, the first low-basis weight region 41 and the second low-basis weight region 42 can further function as strain points. That is, the adjacent absorbent cores 31 are easily moved independently of each other with the first low-unit weight region 41 and the second low-unit weight region 42 interposed therebetween. This makes it easier for the absorbent body 30 to closely adhere to the wearer's crotch and the shape of the buttocks. Therefore, it is possible to provide an absorbent article which is further fitted to the body of the wearer and gives a more comfortable feeling of adhesion to the wearer.

It is preferable that the second side crimping portion 82 is provided in an area overlapping with the second main body adhesive region 62. The area provided with the second side crimping portion 82 is fixed to the undergarment. Thus, when the absorbent core 31 is deformed from the second side press portion 82, the second side press portion 82 can be supported by the underwear. The region between the second side crimp portions 82 can be easily held in a protruded state since the second side crimp portion 82 serving as a starting point of deformation is supported.

(5) Absorbent article being worn

Next, the shape of the absorbent article being worn will be described with reference to Figs. 5 and 6. Fig. Fig. 5 is a schematic cross-sectional view along line C-C of Fig. 1 of the absorbent article in use. Fig. Fig. 6 is a schematic cross-sectional view of the absorbent article in use along line B-B in Fig. 1; 5 and 6, lines indicating the shape of the wearer's body are indicated by chain double-dashed lines.

When the absorbent article 1 as a sanitary napkin is worn, the absorbent article 1 is fixed to the undergarment S. The excretion opening contact area S1 of the absorbent article 1 is sandwiched between the legs of the wearer and receives a force directed from the outside of the width direction W to the inside of the width direction W. [

The cross-sectional shape of the wearer's body along the width direction W of the absorbent article 1 is different near the crotch part and in the vicinity of the buttocks. Concretely, the sectional shape of the body in the vicinity of the sense of heat (crotch; near the vaginal opening where menstrual discharge) of the wearer's crotch protrudes from the base of the labia majora and protrudes toward the absorbent article 1 side. An excretion mouth contact area (S1) of the absorbent article is arranged opposite to the wearer's crotch area. In the crotch of the wearer, the absorbent core 31 of the excretion accessory contact area S1, particularly the middle portion 33, is disposed along the body, and leakage of the body fluid from the crotch can be suppressed (see Fig. 5).

Behind the perineum located behind the wearer's labrum, the anus or hips are located. The cross-sectional shape of the body near the rear than the perineal area is a shape in which the center in the width direction is recessed. A rear region (S3) of the absorbent article is disposed opposite to the wearer's buttocks.

In the rear side region S3, a second low-unit weight region 42 and a front-rear pressing portion 88 extending in the front-back direction L are formed along the center line CL. Therefore, the center of the rear region S3 in the width direction W tends to protrude toward the body of the wearer by the force directed from the outside to the inside of the absorbent article (see Fig. 6). Thus, in the rear region S3, the absorbent article 1 can be deformed to match the shape of the wearer's hip bone. As a result, the wearer can obtain a comfortable feeling of contact with the absorbent article 1 even in the buttocks.

Here, the absorbent article 1 tries to change into a different shape in accordance with the shape of the wearer's body in the excretory port-contacting area S1 and the back-side area S3. The first low-basis weight region 41 suppresses the influence of the deformation of the absorber 30 in the excretion port contact area S1 on the deformation of the absorber 30 in the rear region S3. That is, the first low-basis weight region 41 makes it easy for the absorbent article to be deformed independently in the excretion accessory area S1 and the rear area S3.

Although the present invention has been described in detail with reference to the above embodiments, it is apparent to those skilled in the art that the present invention is not limited to the embodiments described in the present specification. The present invention can be embodied as modifications and variations without departing from the spirit and scope of the present invention as defined by the appended claims. Accordingly, the description herein is for illustrative purposes only and is not meant to be limiting in any way to the present invention.

The entire contents of Japanese Patent Application No. 2015-257070 filed on December 28, 2015 are incorporated herein by reference.

It is possible to provide an absorbent article which is less likely to feel a sense of discomfort in a lying posture and which is easy to adhere the absorbent body along the hip bone.

1: absorbent article
10: skin cotton sheet
20: non-skin cotton sheet
31: absorbent core
33: Used department
41: first low-unit weight region
42: second low unit weight region
43: third low unit weight area
61: first main body sticking area
62: second body sticking area
81: first side crimping portion
82: second side crimping portion
83:
84:
88: Front /
L: forward and backward direction
W: width direction
T: thickness direction
S1: excretory contact area
S2: front region
S3: rear region
CL: Center line

Claims (8)

Rear direction and the width direction orthogonal to each other,
An excretory bag contact area opposed to the excretion of the wearer,
A rear region located on the rear side of the excretion port contact region,
And an absorbent core disposed at least in the excretion port-contacting region and the rear region,
Wherein the absorbent core includes a first low-unit weight region extending in the width direction between the excretion mouth contact region and the rear region, and a second low-unit weight region extending in the front-rear direction along a center line connecting the center in the width direction in the rear region A second low-unit weight region, and a front-rear pressing portion extending in the front-rear direction along the center line in the rear region,
Wherein the absorbent core of the excretion mouth contact region has a unit weight higher than the unit weight of the first low unit weight region and the second low unit weight region,
The second low unit weight region being connected to the first low unit weight region,
And a part or all of the front and rear pressing parts are disposed in the second low unit weight area. The absorbent core according to claim 1, wherein the absorbent core comprises: a first side squeezed portion disposed on both sides with the excretion mouth contact region interposed therebetween and extending in the anteroposterior direction; And a second side crimp portion extending in the front-rear direction,
Wherein the first side press portion and the second side press portion are spaced apart from each other in the front-rear direction. 3. The absorbent core according to claim 2, wherein the absorbent core comprises: a third low-unit-weight portion which is extended from the second low-basis weight region outward in the width direction and has a unit weight lower than the unit weight of the absorbent core in the excretion hole- Region,
And the second side squeeze portion has a dividing portion divided in the anteroposterior direction within the third low unit weight region. 4. The absorbent article as set forth in claim 3, wherein the second side crimping portion has a first region extending rearward from the dividing portion, and a second region extending to the trailing edge of the first region and folding forward. The absorbent core according to any one of claims 1 to 3, wherein the absorbent core is formed of a material having a weight lower than the unit weight of the absorbent core of the excretion mouth contact region and extending outward in the width direction from the second low- 3 low-weight region, and a width-compression-portion extending in the width direction within the third low-unit-weight region. The absorbent article according to claim 1 or 2, wherein the non-skin face sheet positioned on the non-skin face side of the absorbent core is provided with an adhesive region for fixing the absorbent article to the undergarment,
Wherein the adhesive region has a first adhesive region located forward of the first low unit weight region and a second adhesive region located rearward of the first low unit weight region,
Wherein the first adhesive region and the second adhesive region are spaced apart from each other in the anteroposterior direction. The absorbent core according to any one of claims 1 to 3, wherein the excretory bag contact area has a middle portion (2) thicker than the thickness of the outer edge of the absorbent core
The angle formed by the rear surface of the used part absorber extending in the thickness direction from the rear end edge of the used part absorber and the skin non-opposing surface of the used part absorber in the longitudinal direction cross section of the absorbent article, Is larger than the angle formed by the front surface of the used part absorber extending in the thickness direction from the front edge and the skin non-facing surface of the used part absorber. The absorbent core according to claim 1 or 2, wherein the absorbent core has a center squeeze portion extending in the front-rear direction along the center line in the rear region,
And a part or the whole of the center squeezed portion is overlapped with the front and rear squeezed portions.

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