WO2019131921A1

WO2019131921A1 - Underpants-form absorbent article

Info

Publication number: WO2019131921A1
Application number: PCT/JP2018/048280
Authority: WO
Inventors: 井上　拓也; 秀晃槇; 哲郎大窪; 紀子清水
Original assignee: ユニ・チャーム株式会社
Priority date: 2017-12-28
Filing date: 2018-12-27
Publication date: 2019-07-04
Also published as: RU2020124800A3; CN111565685A; RU2020124800A

Abstract

In this underpants-form absorbent article (1): an absorbent main body (10) has an absorbent core (11A) and leg elastic members (16); the absorbent core (11A) is folded in two and has a front core portion (11Af) and a rear core portion (11Ab); a ventral waist portion (20) and a back waist portion (30) have waist elastic members (22, 32); in an extended state in which the leg elastic members (16) and waist elastic members (22, 32) are extended, the up-down-direction length (L1) from a point of intersection (P) of one left-right-direction end of the absorbent main body (10) and a lower end of the ventral waist portion (20) to a lower end of a waist opening part (LH) is greater than 1.65 times the left-right-direction length (L2) from the point of intersection (P) to one end of the ventral waist portion (20); and the front core portion (11Af) has at least one pressing portion (E) having a prescribed left-right-direction length, the pressing portion (E) being located below the lower end of the ventral waist portion (20).

Description

Pants-type absorbent article

The present invention relates to a pant-type absorbent article.

DESCRIPTION OF RELATED ART Conventionally, a pants-type disposable is known as an example of an absorbent article. For example, Patent Document 1 discloses a disposable diaper 10 having a front waist area 11, a back waist area 12, and an absorbent structure 21. The absorbent structure 21 is provided with the extension part 31 which pops out on both sides in the width direction of the absorber 22. By providing the leakproof cuff 51 and the leg gathers 41 whose length in the width direction is longer than that of the leakproof cuff 51 in the extension part 31, a wide surface can be fitted around the wearer's legs and excrete May reduce the possibility of leakage to the outside of the diaper 10. Moreover, in the disposable diaper 10, the narrow part of the length in the width direction is formed in the absorber 22 to reduce the possibility that the absorber 22 restricts the movement of the baby's leg.

JP, 2017-12459, A

The problem to be solved by the present invention is at least one of the following first and second problems.
The first problem is that in the disposable diaper 10 as in Patent Document 1, in order to secure the length of the leg gathers portion 41, the absorbent structure 21 becomes wide. When the infants who often take the posture with their legs closed close the legs, they crush the absorbent structure 21 in the width direction. Therefore, when the absorbent structure 21 becomes wider, the absorbent structure 21 is pushed more strongly. As a result, the central portion in the width direction of the absorbent structure 21 tends to pop out to the front side. After that, even if the baby's legs are opened, the absorbent structure 21 can easily maintain its crushed shape, and the space for storing excrement in the absorbent structure 21 may be narrowed. is there. In a state where the space for storing excrement in the absorbent structure 21 is narrowed, there is a risk that the excrement may leak out of the disposable diaper 10 or the disposable diaper 10 needs to be replaced in a short time. is there.

This invention is made in view of the above problems, Comprising: It aims at making it easy to ensure the space for accommodating the excretion in an absorptive main body.

The second problem is that in the disposable diaper 10 as in Patent Document 1, the length in the width direction of the absorber 22 is short, so the rigidity in the width direction is reduced. Therefore, when the baby closes the leg, when the absorber 22 is crushed from the outside in the width direction toward the inside, the absorbent structure 21 and the absorber 11 between the legs of the baby are likely to be left over. There is a risk of giving an impression of lingering appearance.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a disposable diaper that is easy to give a clean impression on appearance.

The main invention for achieving the first object has a vertical direction, a horizontal direction, and a front-rear direction, and has a back configured as a separate member from the absorbent main body, the ventral waistline portion, and the ventral waistline portion. A pant-type absorbent article having a side waist and a pair of leg openings, wherein the absorbent main body has an absorbent core and a leg elastic member that stretches in the vertical direction, and the absorbent core Is folded in two and has a front side core portion located on the front side and a rear side core portion located on the rear side, and the ventral waistline portion and the back waistline portion expand and contract in the left-right direction In an extended state in which each of the leg stretchable members and the waist stretchable member is stretched, the one end of the absorbent main body in the left-right direction and the lower end of the ventral waistline portion are provided. From the intersection of The length in the vertical direction to the lower end of the turning opening is greater than 1.65 times the length in the left-right direction from the intersection point to the one end of the belly-side waist portion, and the front core portion is In the underpants type absorbent article, at least one compressed portion having a predetermined length in the left-right direction is provided below the lower end of the ventral-side waist portion.

The main invention for achieving the second object has an up-down direction, a left-right direction, and a front-back direction, and has an absorbent core, a ventral waistline, a back waistline, and a leg waist that expands and contracts in the vertical direction. It is a pants-type absorbent article having an elastic member, wherein the absorbent core is folded in two and has a front core portion located on the front side and a rear core portion located on the rear side, the absorbent The core has a narrow portion whose length in the left-right direction is shorter than that of the upper portion, and the ventral waistline portion and the back waistline portion respectively have waist stretchable members that stretch in the horizontal direction, In the stretched state in which the leg-surrounding telescopic member and the waist-surrounding telescopic member are each stretched, the length in the vertical direction of the narrow portion in the front core portion is the vertical direction of the narrow portion in the rear core portion. Longer than the length of the front core portion Serial narrow portion is a pant-type absorbent article characterized in that it the compressed portion comprises at least one having a predetermined length in the lateral direction.
Other features of the present invention will be apparent from the description of the present specification and the accompanying drawings.

The effect of the present invention on the first problem is that even if the wearer closes the leg and tightens the absorbent main body in the left-right direction to narrow the space (housing space) for containing the excrement, the squeezing portion narrows the left-right direction. By increasing the rigidity, when the wearer's legs are opened, the absorbent main body can be easily returned to the state before being tightened, and it becomes easy to secure the excrement storage space.

The effect of the present invention for the second problem is that even in the case where a narrow portion is provided in the front core portion in order to ensure the mobility of the legs of the baby who is the wearer, the forces from the left and right are concentrated. The appearance of the disposable diaper is facilitated by providing a squeezed portion in the narrow portion where it is easy to improve the rigidity in the left-right direction.

FIG. 1A is a schematic perspective view of a shorts-type disposable diaper 1. FIG. 1B is a view showing an example of a worn state of the diaper 1. FIG. 2 is a schematic plan view of the unfolded and stretched diaper 1 as viewed from the skin side. FIG. 3 is a schematic cross-sectional view taken along line AA in FIG. FIG. 4 is a schematic cross-sectional view taken along the line BB in FIG. FIG. 5 is a view for explaining the absorber 11. FIG. 6 is a schematic diagram for explaining the configuration of the schematic plan view of FIG. FIG. 7A is a schematic front view of the diaper 1 in an extended state as viewed from the ventral side. FIG. 7B is a schematic cross-sectional view of the absorbent core 11A in the region indicated by the arrow XX in FIG. 7A. FIG. 8 is a diagram for explaining the stretchable regions Df, Db and the non-stretchable regions Ff, Fb. FIG. 9A is a view for explaining an absorber 11 according to another embodiment. FIG. 9B is a view for explaining an absorber 11 according to another embodiment. FIG. 10 is a schematic plan view of the unfolded and stretched diaper 1 according to another embodiment as viewed from the skin side.

At least the following matters will be made clear by the present specification and the description of the accompanying drawings.
A pants having vertical and horizontal directions, and front and rear direction, and having an absorbent main body, a ventral waist part, a back waist part configured as a separate member from the vent trunk, and a pair of leg openings It is a type absorptive article, The above-mentioned absorptive main part has an absorptive core and the leg elastic telescopic member extended and contracted in the up-and-down direction, and the above-mentioned absorptive core is folded in half, and it is a front core located in the front side , And the ventral waistline portion and the back waistline portion respectively have waist elastic members that expand and contract in the left-right direction, and the leg elastic members, And the lower end of the leg-surrounding opening from the intersection of the one end of the absorbent main body in the left-right direction and the lower end of the ventral-side waist part in an extended state in which the waist-extending member is extended. The vertical length of the The length of the lateral direction from the intersection point to the one side end of the ventral-side waist portion is greater than 1.65 times, and the front core portion is lower than the lower end of the belly-side waist portion. It is a pants-type absorbent article characterized by having at least one pressing portion having a predetermined length in the left-right direction.

According to such a pants-type absorbent article, even if the wearer closes the legs and tightens the absorbent main body in the left-right direction to narrow the space (accommodating space) for containing excrement, the squeezing portion narrows the left-right direction. By increasing the rigidity of the absorbent body, when the wearer's legs are opened, the absorbent main body can be easily returned to the state before being tightened, and it becomes easy to secure the excrement storage space.

In the pants-type absorbent article, the squeezing portion is a continuous squeezing portion continuous from one side to the other side in the left-right direction, and of the upper ends of the continuous squeezing portions, the lowermost in the left-right direction It is desirable that the smaller one of the angles formed by the straight line connecting the portion located at the uppermost position from the located portion and the straight line along the lateral direction be smaller than 45 degrees.

According to such a pants-type absorbent article, the smaller one of the angles formed by the straight line connecting the portion positioned on the uppermost side from the portion positioned on the lowermost side of the compressed portion and the straight line along the left-right direction Since the rigidity in the left-right direction by the squeezed portion is increased compared to the case of 45 degrees or more, it is easier to secure a space for storing excrement.

In such a pants-type absorbent article, it is desirable that the sum of the lengths in the left-right direction of all the compressed portions be larger than the sum of the lengths in the up-down direction.

According to such a pants-type absorbent article, the rigidity in the left-right direction of the absorbent core is increased compared to the case where the sum of the lengths in the left-right direction of all the compressed portions is smaller than the sum of the lengths in the up-down direction. Therefore, it becomes easy to secure the space which stores excrement.

In such a pants-type absorbent article, it is preferable that the compressed portion is a straight line along the left-right direction.

According to such a pant-type absorbent article, the rigidity in the left-right direction is increased by the squeezed portion, so it is easy to secure a space for storing excrement.

In such a pants-type absorbent article, it is desirable that a plurality of the pressing portions are disposed in the vertical direction.

According to such a pant-type absorbent article, the rigidity in the left-right direction is further increased by the squeezed portion, so it is easy to secure a space for storing excrement.

In the pants-type absorbent article, it is preferable that the front core portion has a convex portion and a concave portion on the non-skin side, and the compressed portion is a concave portion.

According to such a pants-type absorbent article, when the skin side is inside and the absorbent core is folded in two, the convex portions interfere with each other to make the absorbent core less likely to bend, deform or wear. It is possible to reduce the possibility of causing a person to have an uneven feeling of unevenness.

In the pants-type absorbent article, it is preferable that the front core portion have a narrow portion whose length in the left-right direction is shorter than that of the upper portion.

According to such a pants-type absorbent article, since the infant as a wearer usually takes a posture in which the leg is usually taken forward, and the absorbent core has a narrow portion, the infant can Even when the leg is closed in the direction, it is possible to reduce the possibility that the absorbent core is excessively tightened in the lateral direction and deformed, or the space for storing excrement is narrowed.

In the pants-type absorbent article, the narrow width portion has a narrowest portion whose length in the left-right direction is the shortest, and the length in the left-right direction of the pressing portion provided in the narrow width portion. The length is preferably equal to or greater than the length of the narrowest portion in the left-right direction.

According to such a pants-type absorbent article, the rigidity of the absorbent core in the left-right direction can be further improved by providing a compressed portion having a length equal to or smaller than the length of the narrowest portion with the smallest rigidity among the absorbent cores. It can be enlarged.

In the pants-type absorbent article, the front core portion has the squeezing portion also above the lower end of the ventral waistline portion, and the narrow portion has a length in the most horizontal direction In the region above the narrowest portion of the front core portion, the lateral end of a compressed portion of the compressed portion of the compressed portion provided in the front core portion has a short narrowest portion. It is desirable not to contact the end of the front side core portion in the lateral direction.

According to such a pants-type absorbent article, there is a fear that the region closer to the abdomen above the narrowest portion may be excessively stiffened, and the movement of the wearer's abdomen and neck may be impeded. It can be reduced.

In the pants-type absorbent article, a plurality of the pressing portions are arranged in the vertical direction, and in the vertical direction, the dimension of the distance between the adjacent pressing portions is larger than the dimension of the pressing portions. Is desirable.

According to such a pants-type absorbent article, the absorbent core becomes excessively hard by making the region where the pressing portion is not provided wider in the vertical direction than the region of the pressing portion where the rigidity is strong. Fear can be reduced.

In such a pant-type absorbent article, the front core portion includes a liquid absorbent fiber, and a high density region in which the density of the liquid absorbent fiber is high, and a low density region in which the density of the liquid absorbent fiber is low. The pressing portion is the high density region, and the thickness of the low density region at the center in the vertical direction is 1.3 to 3.0 times the thickness of the center of the pressing portion in the vertical direction Is desirable.

According to such a pants-type absorbent article, the rigidity of the absorbent core is improved, and it becomes easy to secure a space for storing excrement.

In the pants-type absorbent article, it is preferable that the front core portion has the squeezed portion also above the lower end of the ventral waistline portion.

According to such a pants-type absorbent article, the ventral waistline portion can be more easily in close contact with the abdomen of the wearer.

In the pants-type absorbent article, it is preferable that the center in the left-right direction of the compressed portion is the center in the left-right direction of the absorbent main body.

According to such a pants-type absorbent article, it is possible to reduce the possibility of the absorbent core being deformed in a biased manner with respect to the movement of the wearer.

In the pants-type absorbent article, the ventral waistline portion has a stretchable region that stretches with the waistline stretchable member and a non-stretchable region that does not stretch, and the non-stretchable region is the belly side waistband portion It is desirable that the center portion in the left and right direction is provided, and the both ends in the left and right direction of the pressing portion are respectively provided outside the both ends in the left and right direction of the non-stretchable region.

According to such a pants-type absorbent article, the absorbent main body can be easily kept in contact with the skin.

In the pants-type absorbent article, the ventral-side waist portion has a stretchable region that stretches with the waist-stretchable member and a non-stretchable region that does not stretch, and the non-stretchable region is the center in the left-right direction. It is preferable to be provided in the part, and as for the both ends of the said horizontal direction of the said pressing part, it is provided inside each rather than the both ends of the said horizontal direction of the said non-contraction area | region.

According to such a pants-type absorbent article, it is possible to reduce the hardness of the absorbent main body that has been shrunk and hardened due to the contraction of the waist elastic member on the belly side, and to improve the touch when worn. it can.

In such a pants-type absorbent article, the absorbent main body has a pair of leak preventing walls including a leak preventing wall elastic member, a fixing portion which can not stand up on the skin side, and an upright portion which can stand up on the skin side. Preferably, the length of the compressed portion in the left-right direction is equal to or greater than the distance between the inner ends in the left-right direction of the leakage preventing wall.

According to such a pants-type absorbent article, according to such a pants-type absorbent article, the length of the compressed portion in the left-right direction is shorter than the distance between the inner ends in the left-right direction of the leakproof wall The rigidity of the absorbent core can be further improved.

In the pants-type absorbent article, it is preferable that a plurality of the pressing portions are arranged at equal intervals in the vertical direction.

According to such a pant-type absorbent article, equal rigidity can be given to the absorbent core by providing the compressed portions at equal intervals.

In the pants-type absorbent article, the front core portion has a plurality of the pressing portions, and among the plurality of the pressing portions, the lower pressing portion located at the lowermost side, and the lower pressing portion. Among the plurality of the pressing portions provided below the lower end of the ventral waistline portion, the distance between the adjacent lower pressing portion adjacent from the upper side is the upper pressing portion located at the highest position, and the upper side It is desirable that the distance between the pressing portion and the adjacent upper pressing portion adjacent from the lower side is smaller than the distance between the pressing portion and the adjacent upper pressing portion.

According to such a pants-type absorbent article, according to such a pants-type absorbent article, of the absorbent cores, the upper portion of the absorbent core is less likely to crush the storage space by the legs of the wearer. By providing more compressed parts on the lower side where the excrement storage space tends to be crushed while providing less compressed parts, the rigidity of the absorbent core in the left-right direction is increased to secure the stored space by providing more compressed parts. be able to.

It is a pants-type absorbent article which has an up-down direction, a left-right direction, and a front-back direction, and has an absorptive core, a ventral waist part, a back waist part, and a leg stretchable member that stretches in the vertical direction. The absorbent core is folded in two and has a front core part located on the front side and a rear core part located on the rear side, and the absorbent core is shorter in length in the left-right direction than the upper part The belly-side waist portion and the back-side waist portion have narrow portions, and the waist-side stretchable members extend and contract in the left-right direction, respectively, and extend the leg-around stretchable members and the waist-around stretchable members. In the extended state, the length in the vertical direction of the narrow portion in the front core portion is longer than the length in the vertical direction of the narrow portion in the rear core portion, and the width narrow portion of the front core portion Has a predetermined length in the lateral direction Is a pant-type absorbent article is characterized in that at least one has a compression section that.

According to such a pants-type absorbent article, even when the front core portion is provided with a narrow portion in order to ensure the mobility of the legs of the baby who is the wearer, the force from the left and right direction is concentrated By providing a squeezed portion in the narrow portion where it is easy to do to improve the rigidity in the left-right direction, it becomes easy to make the appearance of the disposable diaper clear.

In such a pants-type absorbent article, it is desirable that the narrow portion have a plurality of the pressing portions.

According to such a pants-type absorbent article, the rigidity in the left-right direction of the narrow portion of the absorbent core can be further improved.

In the pants-type absorbent article, the rear core portion has at least one pressing portion, and the front core portion is provided with a pressing portion of the pressing portions. The rear core portion is provided with another pressing part of the pressing parts, and in the extension state, the certain pressing part and the other pressing part have a length in the left-right direction. In the front core portion, the left and right ends of the certain pressing portion are in contact with the end of the front core portion, and in the rear core portion, the left and right directions of the other pressing portion are the same. It is desirable that the end is not in contact with the end of the rear core portion.

According to such a pants-type absorbent article, the front core portion improves the rigidity in the left and right direction while making the leg of the wearer easy to move because the length in the left and right direction is short, and the front core portion Can further reduce the risk of swelling. On the other hand, the rear core portion has a region with low rigidity which is not squeezed outside the squeezed portion in the left and right direction, so the region with low rigidity is likely to conform to the shape of the buttocks Can be reduced.

In the pants-type absorbent article, the narrow width portion has a narrowest portion whose length in the left-right direction is the shortest, and the rear core portion has at least one pressing portion, It is preferable that the left-right direction length of the said pressing part of a back side core part is more than the said left-right direction length of the said narrowest part.

According to such a pants-type absorbent article, the rigidity in the left-right direction of the rear core portion can be increased, and the length in the left-right direction of the compressed portion is shorter than the length in the left-right direction of the narrowest portion. Also, it is possible to reduce the possibility that the absorbent core may be deformed to get into the recess of the wearer's buttocks.

According to such a pants-type absorbent article, the rigidity in the left-right direction of the absorbent core is improved compared to the case where the sum of the lengths in the left-right direction of all the compressed parts is smaller than the sum of the lengths in the vertical direction. be able to.

According to such a pants-type absorbent article, the rigidity in the left-right direction can be further improved by the compressed portion.

Such a pants-type absorbent article, comprising an absorbent main body provided with the absorbent core, wherein the absorbent main body is a leakproof wall elastic member, a fixing portion which can not stand up on the skin side, and standing up on the skin side It is desirable to have a pair of leak-barriers provided with a possible rising part, and the length of the pressing part in the left-right direction is longer than the distance between the inner ends in the left-right direction of the leak-barriers.

According to such a pants-type absorbent article, the rigidity of the absorbent core can be improved more than in the case where the length in the left-right direction of the compressed portion is shorter than the distance between the inner ends in the left-right direction of the leakproof wall it can.

According to such a pants-type absorbent article, the area closer to the ventral waistline portion of the front core portion has a smaller pressing portion because the front core portion is less likely to expand forward, and the lower side of the front core is Since the front core portion is more likely to be bulging forward, a squeezed portion can be provided to improve the rigidity in the left-right direction, and the possibility of bulging forward can be reduced.

=== Embodiments ===
<<< Basic configuration of pants-type disposable diapers >>>
FIG. 1A is a schematic perspective view of a shorts-type disposable diaper 1. FIG. 1B is a view showing an example of a worn state of the diaper 1. FIG. 2 is a schematic plan view of the unfolded and stretched diaper 1 as viewed from the skin side. FIG. 3 is a schematic cross-sectional view taken along line AA in FIG. FIG. 4 is a schematic cross-sectional view taken along the line BB in FIG. In the “deployed state”, the bonding of the side portion 20 a of the ventral waist portion 20 and the side portion 30 a of the back waist portion 30 of the both sides of the diaper 1 is separated and opened to open the entire diaper 1 planarly. It is in an expanded state. The “stretched state” indicates a state in which the stretchable member provided in the diaper 1 is stretched to such an extent that the wrinkles of the diaper 1 can not be visually recognized. Specifically, a state is shown in which the dimensions of each member (for example, belly-side waist portion 20 and the like described later, etc., which will be described later) constituting the diaper 1 are elongated until they match or close to the dimensions of the single member. The line CC in FIG. 2 is a center line in the left-right direction. In FIG. 3, the adhesive is omitted for convenience.

As shown in FIG. 1, the pants-type diaper 1 has a vertical direction, a lateral direction, and a longitudinal direction, and the diaper 1 is formed with a waist opening BH and a pair of leg openings LH. In the vertical direction, the waist opening BH side is the upper side, and the crotch side of the wearer is the lower side. The vertical direction of the diaper 1 in the state of FIG. 2 (expanded and stretched) is also referred to as “longitudinal direction”, one side in the longitudinal direction as “ventral side”, and the other side as “back side”. Is also called "the lower side". In the front-rear direction, the front side of the wearer is referred to as the front side, and the back side of the wearer is referred to as the back side. Moreover, as shown in FIG. 3, the diaper 1 has a thickness direction, and in the thickness direction, the side in contact with the wearer is a skin side, and the opposite side is a non-skin side.

The diaper 1 is a so-called three-piece type and has an absorbent main body 10, a ventral waist portion 20, and a back waist portion 30 which is a separate member from the vent waist portion. The ventral waistline 20 covers the ventral side of the wearer, and the dorsal waistline 30 covers the dorsal side of the wearer. The absorptive main body 10 is a planar view substantially rectangular shape. As shown in FIG. 3, the upper end on the ventral side and the upper end on the back of the absorbent main body 10 are respectively superimposed on the skin side surfaces of the

waist portions

20 and 30. The ventral-side waist portion 20 and the back-side waist portion 30 have a substantially rectangular shape in plan view, and the longitudinal direction thereof is along the left-right direction.

As shown in the unfolded state of FIG. 2, the diaper 1 has a symmetrical shape with respect to the center line C-C. The ventral waist portion 20 and the back waist portion 30 are disposed in a state of being separated in the longitudinal direction, and the absorbent main body 10 is disposed so as to be bridged between the ventral waist portion 20 and the back waist portion 30 ing. The non-skin side of the upper end on the ventral side and the upper end on the dorsal side of the absorbent main body 10 and the skin side of the

waist portion

20, 30 are joined by an adhesive (not shown), and the unfolded state shown in FIG. Then, the absorbent main body 10 is folded in half at the central portion C10 so that the ventral waist portion 20 and the back waist portion 30 face each other, and the lateral portions 20a of the ventral waist portion 20 in the lateral direction and the back waist portion 30 The diaper 1 becomes a pants type by joining the left and right side portions 30a of the

The ventral waist portion 20 and the back waist portion 30 respectively include

flexible skin sheets

21 and 31 such as non-woven fabric,

non-skin sheets

22 and 32, and waist

elastic members

23 and 33. With the waist

elastic members

23, 33, the ventral waist portion 20 and the back waist portion 30 can be extended and contracted to fit the waist of the wearer. The

skin side sheets

21 and 31 and the

non-skin side sheets

22 and 32 are non-stretchable sheets that do not substantially have stretchability in the left-right direction as each sheet alone. As the

skin side sheets

21 and 31 and the

non-skin side sheets

22 and 32, SMS non-woven fabric (spun-bond / melt-blown / spun-bond non-woven fabric), spun-bonded non-woven fabric, air-through non-woven fabric, plastic sheet, apertured plastic sheet, laminate sheet thereof, etc. Can be used.

The belly-side waist elastic member 23 is a plurality of thread rubbers 23 a that expand and contract in the right and left directions and an elastic sheet 23 b that expands and contracts in the vertical and horizontal directions. The thread rubber 23a is fixed between the skin side sheet 21 and the non-skin side sheet 22 and in the state extending in the left and right direction with a space in the vertical direction in the entire area except the upper end of the ventral side waist portion 20. It is done. The stretch sheet 23 b is disposed on the non-skin side of the absorbent main body 10 between the non-skin side sheet 22 and the skin side sheet 21 folded back from the non-skin side to the skin side, and the belly side waistline portion 20 It is fixed to the upper end portion of in the state of being extended in the left and right direction. The stretch sheet 23b is appropriately stretched such as a gear stretch having a polyurethane elastomer, which is a thermoplastic elastomeric fiber having elasticity, and a polypropylene (PP) of a polyolefin resin, which is a thermoplastic resin fiber having non-elasticity. It is a non-woven fabric treated with a treatment, a stretchable film sheet made of plastic, and the like.

As described above, by arranging the stretchable sheet 23b without arranging the rubber thread 23a at the upper end portion of the ventral-side waist portion 20, the upper end portion of the ventral-side waist portion 20 fits the wearer on the surface. Therefore, it is possible to suppress local tightening of the abdomen and make it difficult for a trace of tightening on the skin by the ventral torso elastic member 23 to remain. In particular, since the abdomen of the baby is pushed forward as compared to the back side, it is more preferable to reduce the possibility that the ventral waistline 20 is locally tightened.

The back waistline elastic member 23 is a plurality of thread rubbers 33 which extend in the left-right direction and are spaced apart in the vertical direction from the upper end portion to the lower end portion of the back waistline portion 30, and the skin side sheet 31 And the non-skin sheet 32 are fixed in a state of being stretched in the left-right direction.

The ventral waistline portion 20 and the back waistline portion 30 are stretchable regions Df and Db which extend and contract together with the ventral waistline stretch member 23 and the back waistline stretch member 33, respectively, the belly side waist stretch member 23 and the back waistline stretch It has non-stretching regions Ff and Fb which do not extend and contract with the member 33. FIG. 8 is a diagram for explaining the stretchable regions Df, Db and the non-stretchable regions Ff, Fb. In FIG. 8, the expansion and contraction regions Df and Db are indicated by hatching on the lower right side, and the non-expansion and contraction regions Ff and Fb are indicated on the left lower hatching. The non-stretchable regions Ff and Fb are provided at the center in the left-right direction of each of the ventral-side waist portion 20 and the back-side waist portion 30 and in the region overlapping in the front-rear direction with the absorbent core 11A. By providing the non-stretchable regions Ff, Fb, the possibility of the absorbent core 11A being contracted in the left-right direction and deformed due to the contraction of the

stretchable members

23, 33 is reduced.

FIG. 4 is a schematic cross-sectional view taken along the line BB in FIG. FIG. 4 shows the dimensions appropriately changed so that the configuration can be easily understood in the thickness direction. As shown in FIG. 4, the absorbent main body 10 includes a pair of leakproof wall members 15, a top sheet 12, an absorber 11, a back sheet 13, and an exterior sheet 14 in order from the skin side in the thickness direction, Each is adhered by an adhesive such as a hot melt. The top sheet 12 may be a liquid permeable sheet, and examples thereof include hydrophilic air through non-woven fabric and spun-bonded non-woven fabric. The back sheet 13 may be a liquid impervious sheet, and may be a polyethylene film, a polypropylene film, a hydrophobic SMS non-woven fabric, or the like. The top sheet 12 and the back sheet 13 are sized to cover the entire absorbent body 11. The leak-proof wall member 15 and the exterior sheet 14 may be a liquid-permeable sheet or a liquid-impermeable sheet, and examples thereof include a hydrophobic SMS non-woven fabric and the like. However, in the present embodiment, since the leakproof wall portion 50 and the leg gathers portion 60 are respectively formed by the leakproof wall member 15 and the exterior sheet 14, the leakproof wall member 15 and the exterior sheet 14 are liquid impervious materials. It is preferred to be configured.

The absorber 11 has a substantially rectangular shape in plan view, and includes an absorbent core 11A that absorbs and holds a liquid such as urine, and a core wrap sheet 11B that covers the outer peripheral surface of the absorbent core 11A. FIG. 5 is a view for explaining the absorber 11. As core wrap sheet 11B, liquid permeable sheets, such as tissue paper and a nonwoven fabric, can be illustrated. In FIG. 5, for convenience, the absorbent core 11A covered by the core wrap sheet 11B is indicated by a solid line.

The absorbent core 11A is formed by forming a liquid absorbent fiber such as a pulp containing a high absorbent polymer (SAP) into a substantially hourglass shape. In the present embodiment, the basis weight of the liquid absorbent fiber of the absorbent core 11A is substantially uniform throughout the absorbent core 11A. In the absorbent core 11A, the portion located on the ventral side (front side) from the central portion C10 is the front core portion 11Af, and the portion located on the back side (rear side) from the central portion C10 is the rear core portion 11Ab . As shown in FIG. 5 and the like, the central portion in the longitudinal direction of the absorbent core 11A is narrowed by shortening the length in the left-right direction. Specifically, a front width narrow portion (also referred to as a "width narrow portion") 11fn below the upper portion 11fu of the front core portion 11Af and a rear width narrow portion below the upper portion 11bu of the rear core portion 11Ab 11bn is provided. The length in the longitudinal direction of the front narrow side portion 11fn is longer than the length in the longitudinal direction of the rear side narrow portion 11bn. Further, the narrowest portion 11n, which is the portion where the length in the left-right direction of the absorbent core 11A is the shortest, is provided in the narrow portion 11fn of the front core portion 11Af. The vertical length of the front narrow side portion 11fn is longer than the vertical length of the rear narrow side portion 11bn. Furthermore, in the absorbent core 11A, a plurality of compressed portions E having a shape along the left-right direction are provided at predetermined intervals in the up-down direction. The pressing unit E will be described later. Further, by providing the slit S penetrating in the thickness direction (front-rear direction) in the back side core portion 11Ab, the absorbent core 11A is made to easily conform to the shape of the hips of the wearer.

The pair of leak preventing wall members 15 constitute a pair of leak preventing wall portions 50. The pair of leak preventing wall portions 50 is a so-called three-dimensional gather and is provided on both sides in the left-right direction of the absorber 11 along the longitudinal direction of the absorbent main body 10. Specifically, the fold portion of the leakproof wall member 15 folded in half with the plurality of leakproof wall expansion / contraction members 51 interposed therebetween is disposed inside in the left-right direction, and the side of the absorbent main body 10 in the left-right direction It is provided from the end to a position where it is superimposed on the side portion in the left-right direction of the absorber 11.

FIG. 6 is a schematic diagram for explaining the configuration of the schematic plan view of FIG. 6, for convenience, the waist

elastic members

23, 33, the slit S, and the like are omitted from the schematic plan view of FIG. The pair of leak preventing wall portions 50 extend in a longitudinal direction (vertical direction) and a plurality of end bonding portions 52 and a pair of side bonding portions 53 for bonding the leak preventing wall member 15 to the exterior sheet 14 and the top sheet 12. The leakage preventing wall elastic member 51 is provided, and the skin side is provided with a pair of fixing

portions

55, 55 that can not stand up, and a pair of standing portions 56 that can stand up on the skin side. In the leak-proof wall 50, each region from the upper end on the side of the ventral-side waist portion 20 to the lower end of the end joint 52 and the region from the upper end on the back-side waist portion 30 to the lower end of the end junction 52 is a fixing portion 55. Then, in the leak-proof wall 50, a region below the lower end of the end joint 52 on the side of the abdominal waist portion 20 and below the lower end of the end junction 52 on the side of the back waist portion 30. Is the standing portion 56. The leaked wall portion 50 blocks the excrement that has flowed laterally.

The pair of end joint portions 52 and the pair of side joint portions 53 are portions joined by an adhesive such as a hot melt adhesive. In addition, joining of the end junction part 52 and the side junction part 53 may fix not only by fixation with an adhesive agent, but may be squeezed, crimped, etc. FIG.

The pair of end joint portions 52 is disposed at both end portions in the longitudinal direction of the absorbent main body 10, and is a “bonded portion” for making the fixing portion 55 unable to stand on the skin side. The end joint portion 52 is provided from the end of the absorbent main body 10 to the position overlapping the upper end of the absorbent body 11 in the longitudinal direction. A pair of side joint parts 53 are provided from one end to the other end of the absorbent main body 10 in the longitudinal direction and one provided from the ventral end of the absorbent main body 10 to the central part C10 in the longitudinal direction There is. They are respectively disposed outside the end joint 52 in the left-right direction.

In the leak preventing wall portion 50, the contraction of the leak preventing wall expansion / contraction member 51 enables the rising portion 56 to stand on the skin side with a portion adjacent to the side joint portion 53 from the inner side in the left-right direction. In addition, it becomes easy to make the leakproof wall part 50 contact a wearer's skin by a surface in the standing-up state of the leakproof wall part 50 by spacing the leakproof wall expansion members 51 apart and providing them with a touch It can be improved.

The exterior sheet 14 constitutes a pair of leg gathers 60 provided with leg elastic members 16. The leg gathers portion 60 is a portion that forms the leg opening LH, and the contraction of the leg elastic member 16 fits the wearer's leg.

Both end portions in the left-right direction are folded back inside, and the leg elastic member 16 is disposed between the folded back sheets 14 to configure the leg gather portion 60. The leg elastic member 16 is a plurality of thread rubbers along the longitudinal direction, and is stretched in the longitudinal direction of the absorbent main body 10 between the exterior sheet 14 folded back inward in the left-right direction to form two layers. It is fixed in the

When thread rubber is used as the leg elastic member 16, it is preferable to arrange a plurality of them, and more preferably 5 or more. In FIG. 2 etc., eight leg elastic members 16 are arranged side by side in the left-right direction. If there is only one leg elastic member 16, there is a risk that the wearer's leg may be locally tightened, but by providing more leg elastic members 16, the leg gather portion 60 is entirely This makes it easy to fit in a plane and can reduce the possibility of locally tightening the legs of the wearer.

<<< About the first issue >>>
When the number of the leg-surrounding elastic members 16 is larger and the positions are wider in the left-right direction, the leg gathers 60 can be easily fitted in a plane by the legs. FIG. 7A is a schematic front view of the diaper 1 in an extended state as viewed from the ventral side. Drawing 7A shows the state where each

elastic member

23, 33, 51, 16 of pants type diaper 1 was extended, respectively. As shown in FIG. 7A, the leg-surrounding opening LH is a vertical direction from the intersection point P of one end in the left-right direction of the absorbent main body 10 and the lower end of the ventral-side waist portion 20 to the lower end of the leg-surrounding opening LH. It is determined according to the length (L1) and the length (L2) in the left-right direction from the intersection point P to one end of the belly-side waist portion 20 in the left-right direction.

As the length in the left-right direction of the absorbent main body 10 is increased, more leg elastic members 16 can be arranged. That is, the vertical length (L1) from the intersection point P to the lower end of the leg opening LH is the horizontal length (L2) from the intersection point P to one lateral end of the belly-side waist portion 20 It is preferable to make it 1.65 times or more. However, if the length L1 is greater than 1.65 times the length L2, the length of the absorbent main body 10 in the lateral direction becomes longer, so when the wearer closes the leg in the wearing state (FIG. 1B) , It becomes easy to crush the absorptive main body 10 in the left-right direction. Since the infants who are the main wearing subjects of the diaper 1 often take a posture in which the legs are taken forward, the legs of the wearer absorb the absorbent main body 10 located on the ventral side shown in FIG. 1A. The side area N where the sex core 11 is not provided is crushed inward in the left-right direction, and the center area M in the left-right direction of the absorbent main body 10 tends to pop out to the front side.

Usually, the absorbent main body 10 and the absorbent core 11 in the worn state have a substantially U-shape when viewed from the side. Since the diaper 1 needs to contain not only liquids such as urine but also solids such as stools, a storage space for storing excrement is on the skin side of the absorbent core 11A and the absorbent main body 10 It will be necessary. However, in the conventional disposable diaper, once the central region M jumps forward, the absorbent core 11A has a convex shape in which the central portion in the left-right direction protrudes forward and the side portions in the left-right direction are recessed. As a result, the accommodation space of the absorbent main body 10 is narrowed. Once the accommodation space is narrowed, even if the wearer opens the legs, the absorbent main body 10 maintains the shape in which the central region M protrudes to the front side, the accommodation space remains narrowed, and is accommodated in the accommodation space The excretable excrement may leak from the diaper or excrement may be locally retained, and if excrement is excreted locally, the worn diaper may appear to hang downward. There were times when the replacement time of the diaper was advanced.

In order to solve this subject, the pressing part E is provided in the absorptive core 11A in the diapar 1. As shown in FIG. Hereinafter, the pressing unit E will be described.

<<< About pressing part E which solves the 1st subject >>>
=== Pressing part E ===
The squeezed portion E is formed of an absorbent core 11A before processing, in a roll gap between a convex roller (not shown) having a plurality of projections and an anvil roller (not shown) having a flat surface. It is formed by performing a pressing process from the non-skin side. FIG. 7B is a schematic cross-sectional view of the absorbent core 11A in the region indicated by the arrow XX in FIG. 7A. The area | region which has not performed pressing processing among the absorptive core 11A is the non-pressing part U. FIG.

The pressed part E is a groove formed by pressing, the density of the liquid absorbent fibers such as pulp is higher than that of the non-pressed part U, and the rigidity is higher than that of the non-pressed part U. In the present embodiment, the depth of the groove of the pressing portion E is substantially uniform. Depending on the depth of the groove, the density of the liquid absorbent fiber changes, and the deeper the groove, the higher the density of the liquid absorbent fiber, and the shallower the groove, the lower the density of the liquid absorbent fiber. As shown in FIG. 5 etc., the pressing part E has a shape along the left-right direction, the length We in the left-right direction is 70 mm, the length De in the vertical direction of the pressing part E is 3 mm, and the pressing part E is It arrange | positions at equal intervals in the direction, and the space | interval Du of the pressing parts E adjacent to an up-down direction is 10 mm. Moreover, the center of the left-right direction of the pressing part E is the center of the absorptive core 11A, and the absorptive core 11A is a symmetrical shape.

The non-pressed part U is thicker than the pressed part E. Therefore, it is preferable that the absorbent core 11A have a convex portion and a concave portion on the non-skin side. As shown in FIG. 7B, the absorbent core 11A is generally flat on the skin side, and has projections and depressions on the non-skin side. The convex portion is the non-pressing portion U, and the concave portion is the pressing portion E. In this way, the skin side of the absorbent core 11A of the pants-type diaper 1 is turned inside, and when it is folded in half at the central portion in the longitudinal direction, the absorbent core 11A at the skin side of the absorbent core 11A. It can prevent that the convex part and the concave part interfere with each other to make it difficult to bend the absorbent core 11A. Further, by making the skin side surface substantially flat, it is possible to reduce the possibility that the wearer may feel discomfort due to the unevenness of the absorbent core 11A or the highly rigid compressed portion E.

As shown in FIG. 2 and the like, the front core portion 11Af is provided with a pressing portion E having a predetermined length in the left-right direction below the lower end of the ventral waistline portion 20, and the pressing portion E having high rigidity The rigidity in the left-right direction of the front core portion 11Af in a region below the lower end of the ventral-side waist portion 20 is enhanced. As a result, the strength against the deformation in the left-right direction of the absorbent core 11A is increased, and the planar shape of the absorbent core 11A in the left-right direction can be easily maintained. Even if the diaper 1 has a long length in the left-right direction of the absorbent main body 10 and it is easy to tighten the absorbent main body 10 inside in the left-right direction when the wearer closes the legs, the absorbent main body 10 is Even if the central portion M (FIG. 1A) pops out and the accommodation space for storing excrement is narrowed, the absorbent core 11A has a planar shape in the lateral direction when the leg of the wearer is opened outward in the lateral direction. In order to maintain, it becomes easy to cancel the state where central part M of absorptive main part 10 jumped out. When the projection of the central portion M is eliminated, the shape of the absorbent main body 10 is easily returned to the state before being crushed, and it becomes easy to secure the space for containing the excrement. By securing the storage space, the risk of excrement from the diaper 1 can be reduced. Moreover, in order to reduce that the excrement is confined locally in the absorbent main body 10, the fear that the absorbent main body 10 appears to be drooping by the excrement is reduced, and the time to replace the diaper 1 may be advanced. Can also be reduced.

The rigidity of the absorbent core 11A can be increased by providing at least one compressed portion E in the front core portion 11Af below the lower end of the belly-side waist portion 20, and the absorbent main body 10 can be obtained. The space for storing excrement can be secured. However, as shown in FIG. 2 etc., it is more preferable to arrange and arrange several pressing parts E in an up-down direction. By this, the rigidity in the left-right direction can be further enhanced.

Furthermore, as shown in FIG. 2 etc., it is preferable to arrange the pressing parts E at equal intervals in the vertical direction. Since equal rigidity can be provided to the absorbent core 11A in the vertical direction by the pressing portions E arranged at equal intervals in the vertical direction, it is easy to reduce the possibility of the absorbent core 11A being deformed in a biased manner. .

Similarly, by providing the center in the left-right direction of the compressed portion E in the center in the left-right direction of the absorbent core 11A and in the center in the left-right direction of the absorbent main body 10, the absorbent core 11A against the movement of the wearer. It is possible to reduce the possibility of the deformation that is biased in the left and right direction.

The sum (ΣWe) of the lengths We in the left and right direction of all the pressed parts E is larger than the sum (ΣDe) of the lengths De in the vertical direction (方向 We> ΣDe). That is, as shown in FIG. 5, in the plurality of pressing portions E, the pressing portions E1, E2, E3,... Are arranged in order from the belly side along the longitudinal direction. At this time, the sum (We1 + We2 + We3 +...) Of the length We of the left and right direction of all the pressing parts E (E1, E2, E3,...) Represents all the pressing parts E (E1, E2, E3,. It is preferable to be larger than the vertical length (De1 + De2 + De3 +...) Of. Thus, the rigidity in the left-right direction of the absorbent core 11A is higher than in the case where the sum (和 We) of the lengths in the left-right direction of all the compressed portions E is smaller than the sum (ΣDe) of the lengths in the up-down direction. It is easy to secure a storage space for storing excrement.

The pressing portion E may have a desired shape such as a curved shape or a shape having one or more corners. However, even if it is a desired shape, the sum (ΣWe) of the lengths We in the left and right direction of all the compressed parts E is larger than the sum (ΣDe) of the lengths De in the vertical direction (ΣWe> ΣDe) Is preferred. Making the rigidity in the left-right direction of the absorbent core 11A higher than in the case where the sum (の長 We) of the lengths in the left-right direction of all the compressed parts E is smaller than the sum (ΣDe) of the lengths in the vertical direction It is because it can.

It is more preferable that the pressing part E has a linear shape along the left-right direction. Since the region in which the rigidity is increased is a straight line along the left and right direction, the rigidity in the left and right direction of the absorbent core 11A is easily increased, and it is easy to secure a space for storing excrement.

In the vertical direction, the dimension Du of the interval between the adjacent pressing portions E is longer than the dimension (De) of the pressing portions E (De <Du). That is, since the interval (Du) of the pressing portions E adjacent to each other in the vertical direction is longer than the length (De) of the pressing portion E in the vertical direction, in the vertical direction, the rigidity of the pressing portions E is higher than that in the region , The region where the rigidity of the non-pressing portion U is low is longer. Therefore, the fear that the absorbent core 11A becomes too hard can be reduced by the compressed portion E, and the touch felt by the wearer can be improved.

As shown to FIG. 7B, thickness (Tu) of the center in the up-down direction of the non-pressing part U whose liquid absorptive fiber is low density is the center in the up-down direction of the pressing part E whose liquid absorptive fiber is high density. The thickness (Te) is preferably 1.3 to 3.0 times (Te × 1.3 ≦ Tu ≦ Te × 3.0). When the thickness Tu at the center in the vertical direction of the non-pressing portion U is smaller than 1.3 times the thickness Te at the center in the vertical direction of the pressing portion E, the absorbency necessary for securing the storage space for storing excrement The rigidity in the left-right direction of the core 11A can not be secured. On the other hand, if the thickness Tu at the center in the vertical direction of the non-pressed part U is greater than 3.0 times the thickness Te at the center in the vertical direction of the pressed part E, the thickness of the pressed part E becomes too thin There is a fear that the part E becomes a starting point of deformation, or the density of the liquid absorbent fiber of the compressed part E becomes too high, which may deteriorate the diffusion of the excrement in the longitudinal direction. Therefore, by making the thickness (Te) of the center in the vertical direction of the compressed portion E where the liquid absorbent fiber has a high density be 1.3 to 3.0 times, deformation of the absorbent core 11A and leakage of excrement are eliminated. Since the rigidity in the left-right direction of the absorbent core 11A can be increased while being prevented, it is easy to secure a storage space for storing excrement.

Moreover, it is preferable that the length (We) of the left-right direction of the pressing part E is more than the distance (Dg) of the inner ends of the leak-proof wall part 50 in the left-right direction (We> = Dg). As shown in FIG. 2, the length (We) of the compressed portion E in the left-right direction is equal to the distance (Dg) between the inner ends in the left-right direction of the leak-proof wall (We = Dg). By doing this, the length (We) of the compressed portion E in the left-right direction is shorter than the distance (Dg) between the inner ends in the left-right direction of the leakproof wall 50, in the absorbent core 11A. Stiffness can be increased. In addition, the rigidity of the left-right direction of absorptive core 11A becomes high, so that the length (We) of the left-right direction of the pressing part E is lengthened.

As shown in FIG. 2 and the like, the absorbent core 11A has narrow portions 11fn and 11bn whose length in the left-right direction is shorter than the upper portions 11fu and 11bu. By providing the front narrow side portion 11fn in the front core portion 11Af, even when the infants who are often in a posture in which the leg is brought forward are worn by the infant and the leg is closed in the lateral direction, the absorbent core Since 11A can reduce the possibility of obstructing the movement of the leg and the possibility of crushing the absorbent core 11A excessively inward in the left-right direction, the possibility of reducing the storage space for storing excrement can be reduced. be able to.

Furthermore, it is more preferable that the length (We) of the pressing part E provided in the front side narrow part 11fn is equal to or longer than the length (Wn) of the narrowest part 11n in the left-right direction. The absorbent core 11A having the front narrow side portion 11fn and the narrowest portion 11n has lower rigidity in the left-right direction than an absorbent core having no front side narrow portion 11fn or the like. Therefore, by providing the pressing portion E having a length equal to or greater than the length in the left-right direction of the narrowest portion 11n having the lowest rigidity in the left-right direction, the length in the left-right direction of the pressing portion E is the left-right direction of the narrowest portion 11n The rigidity in the left-right direction of the absorbent core 11A can be made higher than in the case where the length is shorter than the length.

More preferably, in the region above the narrowest portion 11n of the front core portion 11Af, the lateral end of the pressing portion E is not in contact with the lateral end of the front core portion 11Af. That is, in FIG. 5, the non-pressing part U is provided between each end of the pressing parts E1, E2 and E3 in the left-right direction and the end of the front core part 11Af in the left-right direction. Since the upper side of the front core portion 11Af above the narrowest portion 11n is a region close to the abdomen, when the compressed portion E is formed wide, the wearer may feel the hardness of the absorbent core 11A. Therefore, it is possible not to restrict movement of the wearer's abdomen and groin, and to prevent the absorbent core 11A from becoming excessively hard.

As shown in FIG. 2 etc., it is preferable that the pressing part E is also provided above the lower end of the ventral-side waist part 20 among front side core parts 11Af. That is, it is preferable to provide the pressing part E in the part which overlaps with the ventral-side waist part 20 in the front-back direction. As a result, the absorbent core 11A with high rigidity can be pressed against the skin of the wearer with the belly-side waist elastic member 23 of the belly-side waist portion 20 and brought into close contact with the skin of the wearer. It will be easier to fit.

As shown in FIG. 8, it is preferable that both ends in the left-right direction of the pressing portion E of the front core portion 11Af be provided on the outer side than the non-stretchable region Ff. The non-stretchable region Ff is a region where the contraction force of the belly-side waist elastic member 23 does not work, and therefore, the absorbent main body 10 is a region that tends to separate from the wearer's skin and float. Therefore, by enhancing the rigidity of the absorbent core 11A over a region longer in the left-right direction than the non-stretchable region Ff, it is easy to maintain the absorbent main body 10 in contact with the skin. In addition, it is more preferable that the both ends of the left-right direction of the pressing part E are each provided in the expansion-contraction area | region Df. In order to apply a force in the direction in which the stretchable region Df contacts each end of the compressed portion E with the skin, the portion of the absorbent main body 10 overlapping in the front-rear direction with the non-stretchable region Ff also fits in contact with the wearer's skin It becomes easy to maintain.

<<< About the second issue >>>
Usually, since the infant usually takes a posture in which the leg is taken forward, as shown in FIG. 5 for the purpose of reducing the possibility that the absorber 11 having a relatively high rigidity obstructs the movement of the infant's leg. The length in the vertical direction of the front narrow side portion 11fn of the absorbent core 11A is longer than the length in the vertical direction of the rear side narrow portion 11bn. The front side narrow portion 11fn and the rear side narrow portion 11bn are portions that are susceptible to lateral force due to the movement of the baby's leg, and in particular, when the baby closes the leg inward in the left and right direction, the front side The force from the left and right direction tends to concentrate on the narrow portion 11fn. Therefore, when a force in the lateral direction is applied to the front narrow side portion 11fn, the central region M of the absorbent main body 10 shown in FIG. That is, the front narrow side portion 11fn is easily deformed into a shape having unevenness in the front-rear direction. When the absorbent core 11 and the absorbent main body 10 in a deformed state are viewed from the front of the diaper 1, there is a problem that the absorbent core 11 and the absorbent main body 10 give a slim impression.

In order to solve this problem, the diaper 1 is provided with a pressing portion E in the absorbent core 11A. Hereinafter, the pressing unit E will be described.

<<< About pressing part E which solves the 2nd subject >>>
=== Pressing part E ===
The squeezed portion E is formed of an absorbent core 11A before processing, in a roll gap between a convex roller (not shown) having a plurality of projections and an anvil roller (not shown) having a flat surface. It is formed by performing a pressing process from the non-skin side. FIG. 7A is a schematic front view of the diaper 1 in an extended state as viewed from the ventral side. FIG. 7B is a schematic cross-sectional view of the absorbent core 11A in the region indicated by the arrow XX in FIG. 7A. The area | region which has not performed pressing processing among the absorptive core 11A is the non-pressing part U. FIG.

As shown in FIG. 5 etc., the length in the vertical direction is provided with a pressing portion E having a predetermined length in the left-right direction in the front width narrow portion 11fn longer than the rear width narrow portion 11fb, and the rigidity is high. The pressing portion E enhances the rigidity in the left-right direction of the front narrow side portion 11fn. By doing this, the rigidity in the left-right direction of the front narrow side portion 11fn is increased, and it becomes easy to maintain the planar shape of the absorbent core 11A in the left-right direction.

As described above, in order to ensure the mobility of the baby's leg in a state in which the leg is brought forward, the length in the vertical direction of the front narrow side portion 11fb is longer than the length in the vertical direction of the rear side narrow portion 11fb Even in this case, the rigidity in the left-right direction of the front core portion 11Af can be enhanced with respect to the force in the left-right direction that tends to concentrate on the front narrow portion 11fb, and the deformation of the front core portion 11Af can be reduced. That is, by providing the pressing portion E, the front core portion 11Af can be more easily maintained in a planar shape. Therefore, it is possible to reduce the possibility that the absorbent core 11 and the absorbent main body 10 between the leg and the leg of the baby will be crumpled, and to make the appearance of the diaper 1 as seen from the front clear. When the appearance of the diaper 1 is clear, the infants are more active in order to reduce the possibility of the movement being inhibited by the diaper 1, or they are stored in the diaper 1 because they prevent the absorbent main body 10 from appearing large. It becomes easy to judge the quantity of excrement, and it becomes easy to perform exchange of diaper 1 at an appropriate time. In addition, since the absorbent core 11A having increased rigidity in the left-right direction can easily maintain the planar shape in the left-right direction, the legs of the baby are closed and the space for containing the excrement in the absorbent main body 10 is contracted. Even in this case, when the infant opens the leg, the absorbent core 11A makes it easy for the absorbent main body 10 to return to its original state, and makes it easy to secure a space for containing excrement in the absorbent main body 10. By securing a space for storing excrement in the diaper 1, the risk of excrement leaking from the diaper 1 can be reduced.

In addition, the rigidity of the front narrow side portion 11fn can be increased by providing at least one pressing portion E in the front side core portion 11Af and the front narrow side portion 11fn, and the appearance of the diaper 1 can be easily made clear Become. However, as shown in FIG. 2 etc., it is more preferable to arrange and arrange several pressing parts E in an up-down direction. By this, the rigidity in the left-right direction can be further enhanced.

The sum (ΣWe) of the lengths We in the left and right direction of all the pressed parts E is larger than the sum (ΣDe) of the lengths De in the vertical direction (方向 We> ΣDe). That is, as shown in FIG. 5, in the plurality of pressing portions E, the pressing portions E1, E2, E3,... Are arranged in order from the belly side along the longitudinal direction. At this time, the sum (We1 + We2 + We3 +...) Of the length We of the left and right direction of all the pressing parts E (E1, E2, E3,...) Represents all the pressing parts E (E1, E2, E3,. It is preferable to be larger than the vertical length (De1 + De2 + De3 +...) Of. Thus, the rigidity in the left-right direction of the absorbent core 11A is higher than in the case where the sum (和 We) of the lengths in the left-right direction of all the compressed portions E is smaller than the sum (ΣDe) of the lengths in the up-down direction. The absorbent core 11A can be easily maintained in a planar shape.

It is more preferable that the pressing part E has a linear shape along the left-right direction. Since the region in which the rigidity is increased is a straight line along the left and right direction, the rigidity in the left and right direction of the absorbent core 11A is easily increased, and the absorbent core 11A is easily maintained in a planar shape.

Further, the absorbent core 11A having the narrow portion 11fn and the narrowest portion 11n has lower rigidity in the lateral direction than an absorbent core having no narrow portion 11fn or the like. Therefore, by setting the lateral length (We) of the compressed portion E provided in the narrow width portion 11fn to be equal to or greater than the lateral length (Wn) of the narrowest portion 11n (We W Wn) The rigidity in the left-right direction of the absorbent core 11A can be made higher than when the length in the left-right direction of the part E is shorter than the length in the left-right direction of the narrowest part 11n.

Furthermore, as shown in FIG.2 and FIG.5, at least one pressing part E is provided also in back side core part 11Ab. One of the pressing parts E provided in the front core part 11Af is a front pressing part (a certain pressing part) Ep, and one of the pressing parts provided in the rear core part 11Ab is a rear pressing part (Other pressing parts) Set as Eq. Specifically, the fourth pressing portion E in the front side core portion 11Af from the central portion C10 toward the upper side is the front side pressing portion Ep, and the fourth side from the central portion C10 in the rear side core portion 11Ab is four. Let eye pressing part E be the back side pressing part Eq. In the stretched state of the diaper 1, the lengths in the left-right direction of the front side pressing portion Ep and the rear side pressing portion Eq are the same We. At this time, the left and right direction end of the front side pressing portion Ep is in contact with the end of the front side core portion 11Af, and the left and right direction end of the rear side pressing portion Eq does not reach the end of the rear side core portion 11Ab preferable. That is, in the left-right direction, although the non-pressing part U is not provided outside the end of the front pressing part Ep, the non-pressing part U is provided outside the end of the rear pressing part Eq.

As described above, the front core portion 11Af has the front width narrow portion 11fn to make it easier to move the legs of the baby, while providing the pressing portion Ep to the end of the front core portion 11Af in the left-right direction The rigidity of the portion 11Af is enhanced. That is, the front core portion 11Af makes it easy to keep the front core portion 11Af in a planar shape while enhancing the mobility of the baby's leg, and makes the absorbent main body 10 have a clear impression. On the other hand, the rear core portion 11Ab has the non-squeezed portion U on the outer side in the left-right direction of the compressed portion Eq, so the rear core portion 11Ab is kept in a planar shape for the compressed portion Eq having high rigidity in the left-right direction. However, the non-pressed part U whose rigidity outside the pressed part Eq is low easily conforms to the shape of the buttocks. The non-pressing portion U shaped along the buttocks makes it easy to block excrement from leaking to the outside in the left-right direction.

Furthermore, it is more preferable that the length (Web) of the pressing part E provided in the rear side core part 11Ab in the left-right direction is equal to or longer than the length (Wn) in the left-right direction of the narrowest part 11n (Web W Wn) . By providing the pressing portion E in the rear core portion 11Ab, the rigidity in the left-right direction of the rear core portion 11Ab can be improved. However, if the lateral length (Web) of the compressed portion E of the rear core portion 11Ab is shorter than the lateral length (Wn) of the narrowest portion 11n, the rear core portion 11Ab is made of the absorbent core There is a risk that 11A may be deformed into a shape that enters into the hollow of the baby's back. Therefore, the length (We) of the compressed portion E of the rear core portion 11Ab in the lateral direction is equal to or more than the length (Wn) in the lateral direction of the narrowest portion 11n, the compressed portion E of the rear core portion 11Ab The compressed portion E of the rear side core portion 11Ab can be easily maintained in a planar shape as compared with the case where the length (Web) in the lateral direction is shorter than the length (Wn) in the lateral direction of the narrowest portion 11n.

Similarly, in the region above the narrowest portion 11n of the front core portion 11Af, it is more preferable that the left and right ends of the pressing portion E not be in contact with the left and right ends of the front core portion 11Af. That is, in FIG. 5, the non-pressing part U is provided between each end of the pressing parts E1, E2 and E3 in the left-right direction and the end of the front core part 11Af in the left-right direction. Since the upper side of the front core portion 11Af above the narrowest portion 11n is a region close to the abdomen, when the compressed portion E is formed wide, the wearer may feel the hardness of the absorbent core 11A. Therefore, it is possible not to restrict movement of the wearer's abdomen and groin, and to prevent the absorbent core 11A from becoming excessively hard.

As shown in FIG. 2 etc., it is preferable that the pressing part E is also provided above the lower end of the ventral-side waist part 20 among front side core parts 11Af. That is, it is preferable to provide the pressing part E in the part which overlaps with the ventral-side waist part 20 in the front-back direction. As a result, the absorbent core 11 with high rigidity can be pressed against the skin of the wearer with the belly-side waist elastic member 23 of the belly-side waist portion 20 and brought into close contact with the skin of the wearer. It will be easier to fit.

=== Other Embodiments ===
As mentioned above, although embodiment of this invention was described, said embodiment is for making an understanding of this invention easy, and is not for limiting and interpreting this invention. Further, it goes without saying that the present invention can be modified or improved without departing from the gist thereof, and that the present invention includes equivalents thereof. For example, the following modifications are possible.

In the above-mentioned embodiment, although the linear pressing part E along the left-right direction was provided, the shape of a pressing part is not restricted to this. If it is the pressing part E which has predetermined length in the left-right direction, it can be set as desired shapes, such as a waveform. FIG. 9A is a view for explaining an absorber 11 according to another embodiment. In FIG. 9A, the absorbent core 11A and the like are covered with the core wrap sheet 11B, but are indicated by a solid line for convenience. As shown to FIG. 9A, it may be a mountain shaped pressing part E which has convex shape in the belly side. The pressing portion E has a continuous pressing shape which is continuous from one side to the other side in the left-right direction. Of the upper ends of the pressing parts E, the smaller one of the angles formed by the straight line connecting the part Ek located on the uppermost side from the part Ej located on the lowermost side in the left-right direction and the straight line along the lateral direction It is preferable that θe be smaller than 45 degrees (θe <45 °). Since the rigidity of absorptive core 11A can be made high by compression part E by this, compared with the case where thetae is 45 degrees or more, it becomes easy to secure the accommodation space which stores excrement. In addition, the absorbent core 11A can be easily maintained in a planar shape.

Also in this case, the sum (ΣWe) of the lengths We in the left-right direction of all the compressed portions E is larger than the sum (ΣDe) of the lengths De in the vertical direction (ΣWe> ΣDe). That is, as shown to FIG. 9A, as for several pressing parts E, pressing parts E21, E22, E23, ... are arrange | positioned in order from the belly side along the longitudinal direction. At this time, the sum (We21 + We22 + We23 +...) Of the length We in the left-right direction of all the pressed parts E (E21, E22, E23,...) Is all the compressed parts E (E21, E22, E23,. It is preferable to be larger than the length (De21 + De22 + De23 +...) Of the vertical direction of. Thus, the rigidity in the left-right direction of the absorbent core 11A is higher than in the case where the sum (和 We) of the lengths in the left-right direction of all the compressed portions E is smaller than the sum (ΣDe) of the lengths in the up-down direction. can do.

Further, in the above-described embodiment, the squeezed portion is the same as the lateral length (We) of the squeezed portion E and the lateral length (Wn) of the narrowest portion 11 n. As shown in 9B, the length (Wr) of the squeezed portion (R) is determined from the length (We) of the squeezed portion E in the left-right direction and the length (Wn) of the narrowest portion 11n It may also be long. FIG. 9B is a view for explaining an absorber 11 according to another embodiment. In FIG. 9B, although the absorbent core 11A and the like are covered with the core wrap sheet 11B, they are indicated by solid lines for the sake of convenience. FIG. 9B shows an absorbent body 11 formed by pressing in a state where the absorbent core 11A is covered with the core wrap sheet 11B. The region in which the pressing process is performed on the outer side in the left-right direction than the absorbent core 11A is a portion in which the core wrap sheets 11B are pressed. As described above, the core wrap sheets 11B may be squeezed together by performing squeezing processing not only in the absorbent core 11A but also in the region where the absorbent core 11A is not provided. In the example shown in FIG. 9B, since the pressing process can be performed firmly to the end of the narrowest portion 11n of the absorbent core 11A, the lateral rigidity of the absorbent core 11A can be surely enhanced.

Furthermore, in the above-mentioned embodiment, although pressing parts E were arranged at equal intervals in the up-and-down direction, it is not restricted to this. The pressing portions E may be arranged at unequal intervals. For example, FIG. 10 is a schematic plan view of the unfolded and stretched diaper 1 according to another embodiment as viewed from the skin side. As shown in FIG. 10, in the compressed portions E of the front core portion 11Af, the distance between the lower compressed portion Ea located at the lowest side and the adjacent lower compressed portion Eb adjacent from the upper side to the lower compressed portions Ea. An upper pressing portion Ec located on the uppermost side of the pressing portions E provided lower than the lower end of the ventral waist part 20, and an adjacent upper pressing portion Ed adjacent to the upper pressing portion Ec from the lower side, and Dab May be smaller than the interval Dcd of (Dab <Dcd). By doing this, the region above the front core portion 11Af which is low in the risk of the accommodation space being crushed by the wearer's leg or the absorbent core 11A being deformed among the front core portion 11Af is the compressed portion E. By providing less, it is possible to prevent the possibility of the absorbent core 11A becoming excessively hard. On the other hand, the rigidity of the absorbent core 11A in the left-right direction can be increased by providing more compressed portions E in the lower region of the front core portion 11Af where the container space for excrement is easily crushed and that there is a high risk of deformation. It is possible to make it easy to secure the accommodation space by heightening, or to easily maintain the absorbent core 11A in a planar shape.

Moreover, in the above-mentioned embodiment, although it decided to provide the both ends of the left-right direction of the pressing part E outside the both ends of the non-stretching area | region Ff in the left-right direction, it is not restricted to this. Both ends in the left-right direction of the pressing portion E may be provided inside the both ends in the left-right direction of the non-stretchable region Ff. In this way, in general, the absorbent main body 10 can be made not to provide the pressing portion E in a portion where a portion that becomes hard due to the contraction of the abdominal waist elastic member 23 is not provided. Can further improve the feel of the skin.

In the above-mentioned embodiment, although two or more pressing parts E of the depth of all the same grooves were formed in absorptive core 11A, it is not restricted to this. In the absorbent core 11A, pressing parts E of different depths may be formed. For example, a pressing portion E of a deeper groove is formed in the lower region (the narrowest portion 11 n) of the front core portion 11Af, in which the rigidity in the lateral direction is desired to be higher. A shallow groove squeeze part E may be formed in a portion close to 20.

Moreover, the length of the horizontal direction of the pressing part E given to the absorptive core 11A and the length of an up-down direction may not necessarily be the same. Although the pressing part E of the diapar 1 made the length of the left-right direction of all the pressing parts E the length in the up-down direction the same, it can also be set as respectively different length. For example, in the lower region of the front core portion A where it is desired to further increase the rigidity in the left and right direction, the compressed portion E having a long length in the left and right direction and a long length in the vertical direction is formed. In a portion nearer to the ventral torso waist portion 20, a compressed portion E may be formed in which the length in the lateral direction and the length in the vertical direction are respectively short.

In the embodiment described above, in the narrowest portion 11n, both ends in the left-right direction of the compressed portion E respectively reach both ends in the left-right direction of the absorbent core 11A, and in the upper side of the narrowest portion 11n, the compressed portion E In the present embodiment, both left and right ends of the absorbent core do not reach both ends in the left and right direction of the absorbent core 11A, but the present invention is not limited thereto. For example, both ends of the pressing portion E in the left-right direction may reach both ends in the left-right direction of the absorbent core 11A in the entire area of the front core portion 11Af, including the region above the narrowest portion 11n. By setting both lateral ends of the pressing portion E to reach both lateral ends of the absorbent core 11A in a wider range, the lateral rigidity of the front core portion 11Af can be further enhanced.

Furthermore, in this embodiment, although it was set as absorptive core 11A provided with the narrowest part 11n in front side core part 11Af, it is not restricted to this. For example, the absorbent core 11A may be provided with the narrowest portion 11n at the lower portion of the diaper 1, and may be provided in a region continuing from the front core portion 11Af to the rear core portion 11Ab. Moreover, the rectangular absorptive core 11A which does not have narrow part 11fn and 11bn may be sufficient.

In the above embodiment, as shown in FIG. 2 etc., the diaper 1 has a symmetrical shape, and the vertical length (L1) from the intersection point P to the lower end of the leg opening LH is Although the length (L2) to the end of one side in the left-right direction of the side waist portion 20 is 1.65 or more times the length in the left-right direction, and the other side is the same, it is not limited thereto. For example, the diaper 1 has a left-right asymmetric shape, and on one side in the left-right direction, the length (L1) in the vertical direction from the intersection point P to the lower end of the leg opening LH is The length (l2) of the left-right direction up to one end in the left-right direction is 1.65 times or more (L1 L L2 x 1.65), and on the other side in the left-right direction The length (L1) in the vertical direction to the lower end of the body is 1.65 times smaller than the length (12) in the left-right direction from the intersection point P to one end of the belly-side waist portion 20 in the left-right direction It is good also as L1 <L2x1.65). Even in such a case, the rigidity of the absorbent core 11A is improved by providing the pressing portion E having a predetermined length in the left-right direction below the lower end of the ventral-side waist portion 20, and deformation is achieved. It can be reduced.

In the above-described embodiment, a rubber thread and an elastic sheet are used as the elastic members (22, 32, 51, 16) provided on the ventral-side waist portion 20, the back-side waist portion 30, the leak preventing wall 50, and the leg portion 60. Although illustrated, it does not restrict to this. For example, not only a rubber thread or an elastic sheet, but also one or more sheet-like elastic members such as an elastic film may be provided. Moreover, only the site | part (site | part of what is called an effective length) which expresses extensibility among an expansion-contraction member is shown by drawing. Therefore, a portion of the stretchable member that does not express stretchability may exist outside the longitudinal direction of the stretchable member illustrated. Further, the arrangement and the number of the expansion and contraction members are not limited to the illustrated configuration.

In the above-mentioned embodiment, although a pant type absorptive article was explained as a so-called three piece type disposable diaper which has belly side waist part 20, back side waist part 30, and absorptive main part 10, it is not restricted to this. For example, the exterior sheet 14 may be a diaper (a so-called two-piece type) in which the ventral waistline portion 20 and the back waistline 30 are connected to be integrated.

1 diapers (pants-type disposable diapers, pants-type absorbent articles),
10 Absorbent body,
11 absorbers,
11A absorbent core, 11B core wrap sheet,
11Af front core, 11Ab rear core,
11fu upper part, 11fn front narrow part (narrow part),
11bu upper part, 11bn rear side narrow part (narrow part), 11n narrowest part,
12 top sheets, 13 back sheets,
14 exterior sheet, 15 leak-proof wall member, 16 leg elastic members,
20 ventral waistline (one waistline), 20a side,
21 skin side sheets, 22 non skin side sheets,
23 ventral side waist elastic member (a waist elastic member), 23a thread rubber, 23b elastic sheet,
30 back waist, 30a side,
31 skin side sheets, 32 non skin side sheets,
33 back waist elastic member (waist elastic member),
50 leak-barrier wall, 51 leak-barrier elastic member,
52 end joints, 53 side joints,
55 fixed parts, 56 upright parts,
60 leg gather sections,
LH leg opening, BH trunk opening,
Df stretchable area, Db non-stretchable area,
Ff stretchable area, Db non-stretchable area,
E squeeze department,
Ea lower compression unit, Eb adjacent lower compression unit,
Ec upper pressing section, Ed adjacent upper pressing section,
Ep front side pressing part (a certain pressing part), Eq rear side pressing part (other pressing part),
M center region, N side region, P intersection point,
R squeezed part, S slit,
U non-pressing department

Claims

Vertical direction, horizontal direction, and longitudinal direction,
A pant-type absorbent article having an absorbent main body, a ventral waist part, a dorsal waist part configured as a separate member from the ventral waist part, and a pair of leg openings.
The absorbent main body has an absorbent core and a leg elastic member that expands and contracts in the vertical direction,
The absorbent core is folded in half and has a front core portion located on the front side and a rear core portion located on the rear side,
The ventral waistline portion and the back waistline portion respectively have waist stretchable members that extend and contract in the left-right direction,
In the extension state in which the leg-surrounding telescopic member and the waist-surrounding telescopic member are extended,
The length in the vertical direction from the intersection of one end of the absorbent main body in the left-right direction and the lower end of the ventral-side waist portion to the lower end of the leg opening in the one side is the intersection length Greater than 1.65 times the length in the left-right direction to the one end of the ventral waistline portion,
The pants-type absorbent article, wherein the front core portion has at least one pressing portion having a predetermined length in the left-right direction below the lower end of the ventral-side waist portion.
In the pants-type absorbent article according to claim 1,
The said pressing part is a continuous pressing part continuous from one side to the other side of the said left-right direction,
The smaller one of the angles formed by the straight line connecting the part located on the upper side from the part located on the lowermost side in the left and right direction among the upper ends of the continuous pressing part and the straight line along the left and right direction A pants-type absorbent article characterized by having a smaller than 45 degrees.
The pants-type absorbent article according to claim 1 or 2
The sum of the said left-right direction length of all the said pressing parts is larger than the sum of the length of the said up-down direction, The pants type absorbent article characterized by the above-mentioned.
The pants-type absorbent article according to any one of claims 1 to 3.
The said pressing part is a straight line along the said left-right direction, The pants type absorbent article characterized by the above-mentioned.
The pants-type absorbent article according to any one of claims 1 to 4,
A plurality of said pressing parts are arrange | positioned in the said up-down direction, The pants type absorbent article characterized by the above-mentioned.
The pants-type absorbent article according to any one of claims 1 to 5,
The front core portion has a convex portion and a concave portion on the non-skin side,
The pants-type absorbent article, wherein the compressed portion is a recess.
The pants-type absorbent article according to any one of claims 1 to 6,
The pant-type absorbent article absorbent article, wherein the front core portion has a narrow portion whose length in the left-right direction is shorter than that of the upper portion.
In the pants-type absorbent article according to claim 7,
The narrow portion has a narrowest portion with the shortest length in the lateral direction,
The pants-type absorbent article, wherein the length in the lateral direction of the compressed portion provided in the narrow portion is equal to or greater than the length in the lateral direction of the narrowest portion.
The pants-type absorbent article according to claim 7 or 8
The front core portion also has the pressing portion above the lower end of the ventral waistline portion, and the narrow portion has a narrowest portion with the shortest length in the left-right direction,
In the region above the narrowest portion of the front core portion,
A pant-type absorbent article characterized in that the left-right direction end of a pressing part of the pressing parts provided in the front core part is not in contact with the left-right end of the front core part Goods.
The pants-type absorbent article according to any one of claims 1 to 9.
A plurality of the pressing portions are arranged in the vertical direction,
In the vertical direction,
The pants-type absorbent article, wherein the dimension of the interval between the adjacent pressing portions is longer than the dimension of the pressing portion.
The pants-type absorbent article according to any one of claims 1 to 10.
The front core portion comprises a liquid absorbent fiber, and has a high density region where the density of the liquid absorbent fiber is high, and a low density region where the density of the liquid absorbent fiber is low,
The pressing unit is the high density region,
The pants-type absorbent article, wherein the thickness of the center in the vertical direction of the low density region is 1.3 to 3.0 times the thickness of the center in the vertical direction of the compressed portion.
The pants-type absorbent article according to any one of claims 1 to 11.
The pants-type absorbent article, wherein the front core portion has the compressed portion above the lower end of the ventral waistline portion.
The pants-type absorbent article according to any one of claims 1 to 12.
The pants-type absorbent article, wherein the center of the compressed portion in the left-right direction is the center of the absorbent main body in the left-right direction.
The pants-type absorbent article according to claim 13
The ventral-side waist portion has a stretch region that stretches with the waist-stretching member, and a non-stretch region that does not stretch.
The non-stretchable region is provided at the center in the left-right direction of the ventral-side waist portion,
Both ends of the said horizontal direction of the said pressing part are each provided outside the both ends of the said horizontal direction of the said non-stretching area | region, The pants type absorbent article characterized by the above-mentioned.
The pants-type absorbent article according to claim 13
The ventral-side waist portion has a stretch region that stretches with the waist-stretching member, and a non-stretch region that does not stretch.
The non-stretchable region is provided at the center in the left-right direction,
The pants-type absorbent article is characterized in that both ends in the lateral direction of the squeezing portion are respectively provided inside the ends in the lateral direction of the non-stretchable region.
The pants-type absorbent article according to any one of claims 1 to 15.
The absorbent main body has a leak-barrier elastic member, a fixing portion which can not stand on the skin side, and a pair of leak-barriers having a rising portion which can stand on the skin side,
The pants-type absorbent article, wherein a length of the compressed portion in the left-right direction is equal to or more than a distance between inner ends in the left-right direction of the leakproof wall.
The pants-type absorbent article according to any one of claims 1 to 16.
The pant-type absorbent article, wherein a plurality of the pressing portions are arranged at equal intervals in the vertical direction.
The pants-type absorbent article according to any one of claims 1 to 16.
The front core portion has a plurality of the pressing portions,
Among the plurality of pressing portions, the distance between the lower pressing portion located at the lowermost position and the adjacent lower pressing portion adjacent to the lower pressing portion from the upper side is
Among a plurality of the pressing portions provided below the lower end of the ventral waistline, a space between an upper pressing portion located at the uppermost position and an adjacent upper pressing portion adjacent to the upper pressing portion from the lower side A pants-type absorbent article characterized by being smaller than.
Vertical direction, horizontal direction, and longitudinal direction,
A pant-type absorbent article comprising an absorbent core, a ventral waist portion, a back waist portion, and a leg elastic member that stretches in the vertical direction,
The absorbent core is folded in half and has a front core portion located on the front side and a rear core portion located on the rear side,
The absorbent core has a narrow portion whose length in the lateral direction is shorter than that of the upper portion,
The ventral waistline portion and the back waistline portion respectively have waist stretchable members that extend and contract in the left-right direction,
In the extension state in which the leg-surrounding telescopic member and the waist-surrounding telescopic member are extended,
The vertical length of the narrow portion in the front core portion is longer than the vertical length of the narrow portion in the rear core portion,
The pants-type absorbent article, wherein the narrow width portion of the front core portion has at least one compressed portion having a predetermined length in the left-right direction.
In the pants-type absorbent article according to claim 19,
The pants-type absorbent article, wherein the narrow portion has a plurality of the pressing portions.
The pants-type absorbent article according to claim 19 or 20
The rear core part has at least one pressing part,
The front core portion is provided with a pressing portion of the pressing portions,
The rear core portion is provided with another pressing portion of the pressing portions,
In the extended state, the certain pressing portion and the other pressing portion have the same length in the left-right direction,
In the front core portion, the left-right direction end of the certain pressing portion is in contact with the end of the front core portion,
The pants-type absorbent article, wherein an end of the other pressing portion in the left-right direction is not in contact with an end of the rear core portion in the rear core portion.
The pants-type absorbent article according to any one of claims 19 to 21
The narrow portion has a narrowest portion with the shortest length in the lateral direction,
The rear core portion has at least one squeezing portion,
The length of the said horizontal direction of the said pressing part of the said back side core part is more than the length of the said horizontal direction of the said narrowest part, The pants type absorbent article characterized by the above-mentioned.
The pants-type absorbent article according to any one of claims 19 to 22
The sum of the said left-right direction length of all the said pressing parts is larger than the sum of the length of the said up-down direction, The pants type absorbent article characterized by the above-mentioned.
Claim 6
The pants-type absorbent article according to any one of claims 19 to 23.
The said pressing part is a straight line along the said left-right direction, The pants type absorbent article characterized by the above-mentioned.
The pants-type absorbent article according to any one of claims 19 to 24
Having an absorbent body with said absorbent core,
The absorbent main body has a leak-barrier elastic member, a fixing portion which can not stand on the skin side, and a pair of leak-barriers having a rising portion which can stand on the skin side,
The length of the said horizontal direction of the said pressing part is longer than the distance of the inner ends of the said horizontal direction of the said leak-barrier, The underpants-type absorbent article characterized by the above-mentioned.
The pants-type absorbent article according to any one of claims 19 to 25,
The front core portion has a plurality of the pressing portions,
Among the plurality of pressing portions, the distance between the lower pressing portion located at the lowermost position and the adjacent lower pressing portion adjacent to the lower pressing portion from the upper side is
Among a plurality of the pressing portions provided below the lower end of the ventral waistline, a space between an upper pressing portion located at the uppermost position and an adjacent upper pressing portion adjacent to the upper pressing portion from the lower side A pants-type absorbent article characterized by being smaller than.