WO2017183164A1

WO2017183164A1 - Absorbent article

Info

Publication number: WO2017183164A1
Application number: PCT/JP2016/062672
Authority: WO
Inventors: 紀子長▲瀬▼; 麻穂植田; 邦彦桂川
Original assignee: ユニ・チャーム株式会社
Priority date: 2016-04-21
Filing date: 2016-04-21
Publication date: 2017-10-26
Also published as: JP6337223B2; JPWO2017183164A1; CN209933193U

Abstract

An absorbent article comprising: an absorbent main body (10) having a fluid-absorbing absorbent body (11); a stomach-side section (30) joined to one end side of the absorbent main body (10), in the longitudinal direction; a posterior-side section (40) joined to the other end side of the absorbent main body (10), in the longitudinal direction; and elastic members (35, 45) provided in at least either the stomach-side section (30) or the posterior-side section (40) and following the horizontal direction. The absorbent article has a plurality of through-holes (50) that penetrate from the skin side to the non-skin side. For at least some of the through-holes (50) provided further on the lower side than a position on the upper end of the absorbent body (11) in the vertical direction, the distance between one end and the other end thereof, in the horizontal direction, is greater than the distance between one end and the other end, in the horizontal direction, of the through-holes (50) provided further on the upper side than the position on the upper end of the absorbent body (11) in the vertical direction, in a state in which the stomach-side section (30) and the posterior-side section (40) are contracted in the horizontal direction.

Description

Absorbent articles

The present invention relates to an absorbent article.

Conventionally, disposable diapers and the like are known as absorbent articles that absorb excrement such as urine. For example, as shown in Document 1, the pants-type disposable diaper 1 has an exterior body 3 and an absorbent main body 2, and the exterior body 3 is provided with a plurality of holes 5 penetrating in the thickness direction. . By providing the plurality of holes 5, the air permeability of the absorbent article can be improved.

JP-A-2015-92957

However, in the disposable diaper 1 shown in Document 1, since the sizes of the plurality of holes 5 when opened are uniform, a portion where the air permeability is locally insufficient may occur, which may cause discomfort to the wearer. was there. For example, the region close to the leg circumference of the diaper is a region in which sweating increases due to the wearer moving his / her leg, etc., but in this region the opening width of the hole 5 is narrow and appropriate air permeability is not ensured, It is likely to cause stuffiness and rash and may cause discomfort.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an absorbent article having improved air permeability when worn.

The main invention for achieving the above object is:
An absorptive body having a longitudinal direction and a transverse direction orthogonal to each other and having a liquid-absorbing absorber, and an abdomen side joined to one end side in the longitudinal direction of the absorptive body and provided on the abdomen side of the wearer And a back side part which is joined to the other end side in the longitudinal direction of the absorbent main body and provided on the back side of the wearer, and is provided on at least one of the abdominal side part and the back side part. And an elastic member along the lateral direction, the absorbent article having a plurality of through holes penetrating from the skin side to the non-skin side, wherein the abdominal side portion and the back side portion are in the lateral direction. In the contracted state, the distance between one end and the other end in the lateral direction of at least some of the through-holes provided below the upper end position of the absorber in the longitudinal direction is The through hole provided above the position of the upper end of the absorber in the vertical direction. Greater than the distance between the one end and the other end in the transverse direction, which is an absorbent article, characterized in that.
Other features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

According to the present invention, it is possible to provide an absorbent article with good fit while improving air permeability.

Drawing 1 is an outline perspective view of diaper 1 as an example of an absorptive article of this embodiment. FIG. 2 is a plan view of the expanded diaper 1 as viewed from the skin side. FIG. 3 is a diagram illustrating the AA cross section of FIG. FIG. 4A is a diagram showing a part of the belt-like ventral exterior member 300 in an elongated state before the slit S (through hole 50) is formed. FIG. 4B is a view showing a part of the belt-like ventral exterior member 300 in an elongated state when the slit S (through hole 50) is formed. FIG. 4C is a diagram illustrating a part of the ventral-side exterior member 30 in the wearing state. It is the schematic diagram expanded and shown about the part B of FIG. FIG. 6A is a diagram illustrating the through hole 50a in FIG. FIG. 6B is a diagram illustrating the through hole 50g in FIG. It is the top view which looked at the diaper 100 of other embodiment from the skin side.

At least the following matters will become apparent from the description of the present specification and the accompanying drawings.
An absorptive body having a longitudinal direction and a transverse direction orthogonal to each other and having a liquid-absorbing absorber, and an abdomen side joined to one end side in the longitudinal direction of the absorptive body and provided on the abdomen side of the wearer And a back side part which is joined to the other end side in the longitudinal direction of the absorbent main body and provided on the back side of the wearer, and is provided on at least one of the abdominal side part and the back side part. And an elastic member along the lateral direction, the absorbent article having a plurality of through holes penetrating from the skin side to the non-skin side, wherein the abdominal side portion and the back side portion are in the lateral direction. In the contracted state, the distance between one end and the other end in the lateral direction of at least some of the through-holes provided below the upper end position of the absorber in the longitudinal direction is The through hole provided above the position of the upper end of the absorber in the vertical direction. Absorbent article being larger than the distance between the one end and the other end in the transverse direction.

According to such an absorbent article, when the absorbent article is worn, in the lower region that is close to the leg of the wearer and where heat is likely to be trapped, the through hole is widened in the lateral direction. It becomes easy to let moisture such as sweat escape to the outside via. Thereby, the air permeability of an absorbent article increases, generation | occurrence | production of the stuffiness, rash, etc. at the time of wear of the said absorbent article is suppressed, and it can make it hard to produce a discomfort to a wearer.

In such an absorbent article, the elasticity of the elastic member arranged in a region lower than the position of the upper end of the absorbent body in the longitudinal direction with respect to at least one of the abdominal side portion and the back side portion. The magnitude of the force for contracting the lower region in the lateral direction by the action of force is the elastic force of the elastic member arranged in the region above the upper end position of the absorber in the longitudinal direction. It is desirable that the magnitude of the force causing the lower region to contract in the lateral direction is larger than that due to the action.

According to such an absorbent article, a large contraction force is applied by the elastic member in a region below the absorbent article, whereby the through hole is pulled to both sides in the lateral direction and the opening width is widened. Thereby, the air permeability in the said area | region can be improved. In addition, by adjusting the elastic force by the elastic member, it is possible to adjust the size of the opening width of the through hole with high accuracy, and it is not necessary to change the apparatus, so that the manufacturing cost can be reduced.

In such an absorbent article, at least one of the abdominal side portion and the back side portion is joined to a region below the upper end position of the absorbent body in the longitudinal direction. It is desirable that the degree of elongation of the elastic member with respect to the natural length is larger than the degree of elongation of the elastic member with respect to the natural length of the elastic member joined to a region above the position of the upper end of the absorber in the longitudinal direction. .

According to such an absorbent article, when the elastic member is disposed along the lateral direction, these regions can be obtained by changing the expansion ratio of the elastic member between the upper region and the lower region of the absorbent article. It is possible to adjust the elastic force acting on the. As a result, the size of the opening width of the through hole can be adjusted easily and accurately, and air permeability can be further improved.

In such an absorbent article, the through hole is provided on the outer side of the absorbent body in the lateral direction, and in the region where the absorbent body and the elastic member overlap in the thickness direction, the elastic member Desirably, at least a portion is discontinuous.

According to such an absorbent article, since it becomes difficult for the contraction force in the lateral direction to act on the absorbent body, the absorbent body is easily maintained flat, and the fit is improved and the leakage of excrement is suppressed. can do. Moreover, since the elastic force of the whole elastic member can be weakened by making the elastic member discontinuous, it becomes possible to set the expansion ratio when the elastic member is arranged to be high accordingly. Therefore, it becomes easy to widen the opening width of the through hole in the region where the elastic member is disposed.

In such an absorbent article, in a state where the abdomen side portion and the dorsal side portion contract in the lateral direction, at least a part of the absorbent article provided below the upper end position of the absorber in the longitudinal direction. The distance between one end and the other end of the through hole in the vertical direction is the one end in the vertical direction and the other of the through hole provided above the position of the upper end of the absorber in the vertical direction. Desirably less than the distance between the edges.

According to such an absorbent article, in the lower region, by forming a horizontally long through hole having a wide lateral width and a narrow vertical height, the horizontally long through hole is used as a base point. The ventral part (back side part) is easily bent in the front-rear direction (vertical direction). Thereby, when the wearer of the absorbent article moves the leg, the absorbent article easily deforms following the movement of the leg. Therefore, absorbent article fit property can be improved more.

Such an absorbent article has a first through hole and a second through hole in a region below the upper end position of the absorbent body in the longitudinal direction, and the abdominal side portion and the back side portion. In the lateral direction, the distance between one end and the other end of the first through hole in the lateral direction, and the distance between the one end and the other end of the second through hole in the lateral direction. It is desirable that these are different.

According to such an absorbent article, through holes having different shapes are formed in the lower region of the abdominal side (back side), so that the design and aesthetics of the absorbent article can be enhanced.

In such an absorbent article, with the ventral side portion and the back side portion contracted in the lateral direction, the opening area of the first through hole is different from the opening area of the second through hole. It is desirable.

According to such an absorbent article, a portion having a large opening area and a small portion are provided in the lower region of the abdominal side portion (back side portion). The ventilation performance of the through hole can be adjusted. Thereby, the discomfort due to wearing of the absorbent article can be made difficult to occur.

In such an absorbent article, the shape of the ridge formed around the through hole provided below the position of the upper end of the absorber in the longitudinal direction, and the upper end of the absorber in the longitudinal direction It is desirable that the shape of the ridge formed around the through hole provided on the upper side of the position is different.

According to such an absorbent article, when the absorbent article is worn, when the top of the heel formed around the through hole is pressed against the skin of the wearer, the pressure acting on the wearer's skin from the top of the heel Becomes easy to be dispersed, and the wearer can feel a softer touch. In addition, since the shape of the through hole and the surrounding ridges are different, it seems that a geometric pattern is formed, and the aesthetic appearance of the absorbent article can be improved.

In such an absorbent article, a plurality of the through holes are arranged in a region outside the lateral direction of the absorbent body along a region that comes into contact with a wearer's ridge portion when the absorbent article is worn. It is desirable that

According to such an absorbent article, it is possible to efficiently increase the air permeability of the inguinal portion (soak portion) that easily sweats. Therefore, it can be made difficult to cause discomfort by the wearer.

=== About the disposable diaper according to the present embodiment ===
<About the configuration of the disposable diaper 1>
Drawing 1 is an outline perspective view of diaper 1 as an example of an absorptive article of this embodiment. FIG. 2 is a plan view of the expanded diaper 1 as viewed from the skin side. FIG. 3 is a diagram illustrating the AA cross section of FIG.

In the following description, the diaper 1 in the state of FIG. 1 (wearing state) includes a “vertical direction”, a “lateral direction” that intersects the longitudinal direction, and a “thickness direction” that intersects the longitudinal direction and the lateral direction. Have. Further, the longitudinal direction of the diaper 1 in the state of FIG. 2 (deployed state) is referred to as “longitudinal direction”, and one end and the other end in the longitudinal direction of the diaper 1 are respectively referred to as “upper end”. C10 is also referred to as “lower end”. Further, in the thickness direction, the side in contact with the wearer is referred to as “skin side” and the opposite side is referred to as “non-skin side”. AA in FIG. 2 etc. indicates the center in the horizontal direction. The “extended state” refers to a state in which the diaper 1 is extended until wrinkles disappear. Specifically, the members (for example, the abdominal side exterior member 30 and the back side exterior member 40) of the diaper 1 are used. It means a state in which the dimensions are extended until the dimension is equal to or close to the dimension of the single member.

The disposable diaper 1 according to the present embodiment (hereinafter referred to as “diaper 1”) is a so-called three-piece type pants-type diaper mainly intended for wearing infants, and has an absorptivity disposed between the wearer's crotch. It has a main body 10, an abdominal exterior member (abdominal side part) 30 that covers the wearer's abdominal side part, and a back side exterior member (back side part) 40.

In the deployed state of FIG. 2, the absorbent main body 10 has an abdominal side so that each end in the longitudinal direction (one end side and the other end side in the longitudinal direction) overlaps with the abdominal exterior member 30 and the back exterior member 40. It is provided from the exterior member 30 to the backside exterior member 40 and is bonded and fixed to the abdominal side exterior member 30 and the backside exterior member 40 from the skin side by an adhesive or the like. The external shape is substantially H-shaped in plan view. Then, it is folded in half with the substantially central portion C10 in the longitudinal direction as a folding position, and the abdominal exterior member side edge 30se, which is the lateral ends of the abdominal exterior member 30 and the back exterior member 40 facing each other, If it joins and connects in the back side exterior member side edge 40se, it will become the diaper 1 (FIG. 1) in which the trunk periphery opening 1HB and a pair of leg periphery opening 1HL were formed.

The absorptive main body 10 is not overlapped in the region of the upper end portion 30e in the vertical direction of the abdominal exterior member 30, and the absorbent main body 10 is located in the central portion 30c in the vertical direction with respect to the end portion 30e. Are superimposed. Moreover, the absorptive main body 10 is piled up in the center part of the horizontal direction among the abdominal side exterior members 30, and the absorptive main body 10 is located in the area | region 30s of the horizontal direction from the horizontal end 10e of the absorptive main body 10. FIG. Are not superimposed.

Similarly, in the backside exterior member 40, the absorbent main body 10 is not overlapped in the region of the upper end portion 40e in the vertical direction, and is absorbed by the portion 40c on the central side in the vertical direction from the end portion 40e. The sex body is superimposed. Moreover, the absorptive main body 10 is piled up in the center part of the horizontal direction among the back side exterior members 40, and the absorptive main body 10 is in the area | region 40s of the horizontal direction outer side 10e of the absorptive main body 10 in the horizontal direction. Are not superimposed.

As shown in FIG.2 and FIG.3, the absorptive main body 10 is equipped with the absorber 11, the surface sheet member 13 which covers the absorber 11 from the skin side, and the back surface sheet member 15 which covers the absorber 11 from the non-skin side. ing. The top sheet member 13 is a liquid-permeable sheet member such as a nonwoven fabric. The back sheet member 15 is a sheet member composed of two layers of a liquid-impermeable leak-proof sheet 15a such as polyethylene and a liquid-permeable exterior sheet 15b such as a nonwoven fabric. Further, a three-dimensional gather or a leg-around gather may be formed by the exterior sheet 15b or the like (not shown).

The absorbent body 11 is an absorbent core formed by laminating liquid absorbent materials, and can absorb excrement such as urine. The absorbent body 11 can use liquid absorbent fibers such as pulp fibers, absorbent polymer (SAP), or the like, and has a substantially hourglass shape in plan view in this embodiment (FIG. 2). Moreover, the absorber 11 may be coat | covered with liquid permeable sheets (not shown), such as tissue paper.

The ventral side exterior member 30 and the back side exterior member 40 are both substantially rectangular sheet members in plan view made of a flexible material such as a nonwoven fabric. As shown in FIG. 3, the abdominal exterior member 30 has a skin side sheet 31 and a non-skin side sheet 32 stacked in order from the skin side in the thickness direction, and the back side exterior member 40 is joined in the thickness direction. The skin side sheet 41 and the non-skin side sheet 42 are overlapped and joined in order from the skin side.

As shown in FIG. 3, the upper part of the abdominal exterior member 30 is configured so that the non-skin side sheet 32 starts from the abdominal upper end 30et which is the upper end of the abdominal exterior member 30 in order to improve touch and durability. The folded portion 32f is formed by folding downward on the skin side. Similarly, the upper part of the backside exterior member 40 is also folded back downward on the skin side from the backside upper end 40et, which is the upper end of the backside exterior member 40, to form a folded portion 42f. Has been.

Further, the abdominal exterior member 30 includes a sheet member 34 disposed so as to cover the lower end portion of the folded portion 32f and the upper end portion of the absorptive main body 10 from the skin side. Similarly, the back-side exterior member 40 includes a sheet member 44 that is arranged so as to cover the upper end portion on the back side of the absorbent main body 10 from the skin side from the lower side of the folded portion 42f. The

sheet members

34 and 44 are rectangular sheet members made of a nonwoven fabric or the like, which are different from the ventral exterior member 30 and the back exterior member 40. By providing the

sheet members

34 and 44, it is possible to suppress the abdominal side upper edge or the back side upper edge in the longitudinal direction of the absorbent main body 10 from coming into direct contact with the wearer's skin. The feel around the waist can be improved. Further, the

sheet members

34 and 44 can increase the strength of the upper side ends in the vertical direction of the ventral side exterior member 30 and the back side exterior member 40.

Furthermore, the ventral side exterior member 30 and the back side exterior member 40 have a predetermined length in the vertical direction, and a through-hole 50 that penetrates each

exterior member

30, 40 from the skin side to the non-skin side is provided vertically. A plurality are provided at predetermined intervals in the direction and the horizontal direction. Details of the through hole 50 will be described later.

Between the skin-side sheet 31 and the non-skin-side sheet 32 of the ventral-side exterior member 30, a plurality of

elastic members

35, 35,. The elastic member 35 is bonded and fixed to the skin-side sheet 31 and the non-skin-side sheet 32 with an adhesive while being stretched in the lateral direction. The plurality of

elastic members

35, 35... Are arranged side by side with a space in the vertical direction.

Similarly, between the skin side sheet 41 and the non-skin side sheet 42 of the backside exterior member 40, a plurality of

elastic members

45, 45... The elastic member 45 is bonded and fixed to the skin-side sheet 41 and the non-skin-side sheet 42 with an adhesive while being stretched in the lateral direction. The plurality of

elastic members

45, 45... Are arranged side by side with a space in the vertical direction.

The

elastic members

35 and 45 provide lateral stretchability to the abdominal exterior member 30 and the back exterior member 40, and form a plurality of ridges on the abdominal exterior member 30 and the back exterior member 40. . Many of the wrinkles formed on the ventral-side exterior member 30 and the back-side exterior member 40 have a shape along the vertical direction.

Of the plurality of

elastic members

35 and 45, lateral

elastic members

35s and 45s are provided in regions outside the absorber 11 in the lateral direction. At least a part of the side

elastic members

35s and 45s is discontinuous, for example, by being cut in a region overlapping with the absorber 11 near the central portion in the lateral direction. The elastic force (contraction force) by 35s and 45s is prevented from acting. Thereby, the shrinkage | contraction of the horizontal direction which acts on the absorber 11 is suppressed, and since it becomes easy to maintain the absorber 11 substantially flat, the leak of excrement etc. can be suppressed.

The plurality of elastic members 35 are provided on the uppermost elastic member 35t located on the uppermost side in the vertical direction and on the lower side of the upper elastic member 35t, and on the other side from the abdominal exterior member side edge 30se on one side in the horizontal direction. A continuous elastic member (lower elastic member) 35m that continues to the side edge 30se on the side of the abdominal side exterior member, the above-described side elastic member (lower elastic member) 35s, and the lowest position in the vertical direction. The lowermost elastic member 35u provided at a position farthest below the continuous elastic member 35m and the side elastic member 35s.

In the diaper 1, these

elastic members

35t, 35m, 35s, and 35u are bonded and fixed to the ventral-side exterior member 30 after appropriately adjusting the size of the expansion ratio in the lateral direction. Here, the “extension ratio” of the elastic member indicates the degree of elongation when the natural length of the elastic member (thread rubber) is 1. For example, when the expansion ratio is 1.2, the elastic member is That is, the natural length is extended by 0.2.

Specifically, the expansion ratio of each elastic member is set so that the expansion ratio of the side elastic member 35s is higher than the expansion ratio of the upper elastic member 35t and the continuous elastic member 35m. As described above, since the side elastic member 35s is discontinuous in the central region in the lateral direction, the elastic force (contracting force) tends to be weaker than the

elastic members

35t and 35m. Therefore, by setting the expansion ratio of the side elastic member 35s to be high in advance, the elastic force (contraction force) expressed by the side elastic member 35s in the laterally outer region of the absorber 11 and the elastic member The elastic force (contraction force) expressed by 35t and 35m is easily balanced. Thereby, it becomes difficult to produce bias in elasticity between elastic members, and it is suppressed that the fit nature of diaper 1 deteriorates. The magnitude of such elastic force may be adjusted as a whole in the region where the side elastic member 35s is disposed (that is, the region 30s outside in the lateral direction from the absorber 11). The elastic force may not be adjusted for each side elastic member 35s. That is, when a plurality of the side elastic members 35s are provided, it is not always necessary that the extension magnification of all the side elastic members 35s is higher than the extension magnification of the continuous elastic member 35m or the like.

On the other hand, the lowermost elastic member 35u is discontinuous in the lateral central region in the same manner as the side elastic member 35s, but the lowermost elastic member 35u is disposed along the leg opening 1HL. It is preferable to set the expansion ratio lower than that of the side elastic member 35s. Thereby, it is suppressed that the elastic force of leg periphery opening 1HL vicinity becomes high too much, and the fastening of a leg periphery becomes strong too much at the time of diaper 1 wearing, and it suppresses giving a discomfort to a wearer.

When adjusting the elastic force (shrinkage force) of these elastic members 35, the thickness of elastic member 35 (diameter of thread rubber) is changed instead of changing the expansion ratio of elastic member 35. May be. For example, the side elastic member 35s may be thicker than the upper elastic member 35t so that the elastic force generated by the side elastic member 35s may be adjusted. Further, the elastic force may be adjusted by combining the expansion ratio and the thickness of the elastic member 35.

Similarly, the plurality of elastic members 45 are provided on the uppermost elastic member 45t located on the uppermost side in the vertical direction and on the lower side of the upper elastic member 45t, and from the back side exterior member side edge 40se on one side in the horizontal direction. A continuous elastic member (lower elastic member) 45m that continues to the back side exterior member side edge 40se on the other side, a side elastic member (lower elastic member) 45s, and the lowest position in the vertical direction, And a lowermost elastic member 45u provided at a position farthest below the continuous elastic member 45m and the side elastic member 45s.

Then, the expansion magnification (elastic force) of each elastic member is set so that the expansion magnification of the side elastic member 45s is higher than the expansion magnification of the

elastic members

45t and 45m. Further, the expansion magnification of the lowermost elastic member 45u is set to be lower than the expansion magnification of the side elastic member 45s.

<About the through hole 50>
First, formation of the through hole 50 will be described. The through hole 50 of the ventral-side exterior member 30 is formed in the manufacturing process of the ventral-side exterior member 30 in the manufacture of the diaper 1. The ventral-side exterior member 30 is a band-shaped ventral-side exterior member 300 in which a strip-shaped skin-side sheet 310, an elastic member 350, and a strip-shaped non-skin-side sheet (not shown) are arranged in order from the skin side. It is formed separately.

FIG. 4A is a view showing a part of the belt-shaped ventral-side exterior member 300 in an elongated state before the slit S (through hole 50) is formed. FIG. 4B is a view showing a part of the belt-like ventral exterior member 300 in an elongated state when the slit S (through hole 50) is formed. FIG. 4C is a diagram illustrating a part of the ventral-side exterior member 30 in the wearing state. 4A, 4B, and 4C are views seen from the skin side, respectively.

FIG. 4A shows a state in which the band-shaped ventral-side exterior member 300 before the slit S is formed is stretched until the band-shaped skin-side sheet 310 and the band-shaped non-skin-side sheet are almost free from wrinkles.

Subsequently, as shown in FIG. 4B, linear slits S are formed along the vertical direction so as to cross a part of the elastic members 350 in the elongated strip-shaped ventral exterior member 300. The slit S is formed by cutting the strip-shaped skin side sheet 310, the elastic member 350, and the strip-shaped non-skin side sheet using a predetermined blade. FIG. 4B shows the moment when the slit S is formed by cutting. The slit S then becomes a through hole as shown in FIG. 4C by the elastic member 350. In addition, the slit S of this embodiment is a linear slit, and unlike the case where the shape which has a predetermined area is cut out, it is hard to produce chips.

FIG. 4C shows a part of the ventral-side exterior member 30 in a state where the wearer wears the diaper 1. The outline of the through-hole 50 of the abdomen-side exterior member 30 in the worn state is opened on both sides in the lateral direction, and the shape of the through-hole 50 is substantially rhombus. This is because, as shown in FIG. 4C, the elastic member 35 contracts, so that the periphery of the through hole 50 is pulled in the lateral direction. Thereby, since the through-hole 50 opens more largely in a wearing condition, the air permeability of the diaper 1 can be improved more. By making one through hole 50 larger, the air permeability of the diaper 1 can be ensured with a smaller number of through holes 50. Furthermore, since the through-hole 50 can be opened in the lateral direction by the elastic member 35 in a contracted state even before being worn, it is possible to provide an appearance to a guardian who wears the diaper 1 on a wearer such as an infant. The through-hole 50 can be visually recognized, and the improvement of the air permeability can be recognized. The contracted elastic member 35 pulls the nonwoven fabric around the through hole 50, so that a plurality of wrinkles along the outline of the through hole 50 are formed around the through hole 50. By the plurality of folds, the touch of the diaper 1 can be made softer. In particular, when the through hole is formed by cutting out a predetermined range, the periphery of the through hole is opened in a substantially flat state, whereas in the present embodiment, the through hole 50 is formed by a linear slit S. Therefore, the non-woven fabric pulled by the opening swells around the through hole 50 to form a plurality of wrinkles. Therefore, the touch of the diaper 1 can be further improved.

The through hole 50 of the backside exterior member 40 is formed in the same manner as the through hole 50 of the abdominal side exterior member 30. In the present embodiment, the case where the through holes 50 of the ventral exterior member 30 and the back exterior member 40 are separately formed has been described. However, the present invention is not limited to this. The abdominal exterior member 30 and the back exterior member 40 may be integrally formed, and after the through hole 50 is formed, the abdominal exterior member 30 and the back exterior member 40 may be separated. The slit S may be formed after the absorbent main body 10 and the sheet member 34 are stacked on the abdominal exterior member 30, or after the slit S is formed in the abdominal exterior member 30. The sheet member 34 may be stacked. Similarly, the slit S may be formed after the absorbent main body 10 and the sheet member 44 are stacked on the backside exterior member 40, or the absorbent main body 10 and the sheet are formed after the slit S is formed on the backside exterior member 40. The member 44 may be stacked.

Subsequently, the configuration of the through hole 50 will be described. As shown in FIG. 2, a plurality of through holes 50 of the ventral-side exterior member 30 are provided in a region of the ventral-side exterior member 30 where the folded portion 32f, the sheet member 34, and the absorbent main body 10 are not provided. ing. Specifically, the vertical direction is a region below the end 30 e and below the lower end of the sheet member 34, and the horizontal direction is provided outside the absorbent main body 10. Further, the one side and the other side in the lateral direction of the ventral-side exterior member 30 are arranged symmetrically with respect to the lateral center AA.

In addition, the through hole 50 is lower than the upper elastic member 35t positioned on the uppermost side of the abdominal exterior member 30 and lowermost than the lowermost elastic member 35u positioned on the lowermost side of the abdominal exterior member 30 in the vertical direction. It is provided on the upper side. In this region (30 s), a part of the continuous elastic member 35 m and the side elastic member 35 s are discontinuous by the through hole 50. This is because, as described above, the continuous elastic member 350 is cut together with the belt-like skin side sheet 310 and the belt-like non-skin side sheet when the through hole 50 is formed. On the other hand, the upper elastic member 35t and the lowermost elastic member 35u are not discontinuous by the through hole 50.

In the present embodiment, the plurality of through holes 50 are arranged in a staggered manner. FIG. 5 is an enlarged schematic view of a portion B in FIG. In FIG. 5, the arrangement of the plurality of through holes 50 and the ridges formed around the through holes 50 are schematically shown. In FIG. 5, a through hole 50 a (first through hole), a through hole 50 b (second through hole) that is located on the left upper side of the through hole 50 a and is adjacent in the vertical direction, and an upper side of the through hole 50 a. A through hole 50c that is positioned and overlaps the through hole 50a in the lateral direction; a through hole 50d that is positioned on the left side (inside) in the lateral direction of the through hole 50a and that overlaps the through hole 50a in the vertical direction; A through hole 50e that is located on the right side (outside) of 50a in the horizontal direction and overlaps with the through

holes

50a and 50d in the vertical direction, and a through hole that is positioned obliquely on the right of the through hole 50a and adjacent in the vertical direction 50f and a through hole 50g that is located diagonally above and to the left of the through hole 50c and overlaps the through hole 50b in the lateral direction, and that is located above and diagonally to the right of the through hole 50c and that overlaps the through hole 50f in the lateral direction and In the direction Shows, a through hole 50h of overlap with the through-hole 50 g.

The elastic member (non-continuous elastic member) 35a overlaps the through hole 50a, the through hole 50d, and the through hole 50e in the vertical direction. Similarly, the elastic member 35b includes the through hole 50b, the through hole 50f, and the elastic member 35c. The through hole 50c and the elastic member 35g overlap the through hole 50g and the through hole 50h in the vertical direction. In the vertical direction, the elastic member (lower elastic member) 35d is provided below the through hole 50a, and the elastic member (upper elastic member) 35e is provided above the through hole 50a and below the through hole 50b. It has been. Similarly, the elastic member 35f is provided between the through hole 50b and the through hole 50c, and the elastic member 35h is provided between the through hole 50c and the through hole 50g (50h). That is, the

elastic members

35e, 35f, and 35g do not overlap with any of the through holes 50 in the vertical direction. The

elastic members

35g and 35h are continuous elastic members 35m, the

elastic members

35a, 35b, 35c, 35e, and 35f are side elastic members 35s, and the elastic member 35d is the lowermost elastic member 35u. is there.

As shown in FIG. 5, each through-hole 50 has a substantially rhombus shape, but the through-hole 50 is not a strict rhombus, but an upper end (upper end et) and a lower end in the vertical direction. (Lower end eb), the right end (right end er) in the horizontal direction and the left end (left end el) have four vertices, which is the same as the rhombus. The through-hole 50 has a shape capable of recognizing four vertices, and many of the outlines are curved instead of straight lines. Further, the inside of the through hole 50 penetrates from the skin side to the non-skin side, and the folded portion of the skin side sheet 31 or the non-skin side sheet 32 has a shape that falls into the inside or outside of the through hole 50. Or protruding to the skin side or non-skin side. In FIG. 5, the shape of each through hole 50 is depicted as the same shape, but the actual shape is not necessarily the same for each through hole 50. For example, as will be described later, the lateral opening width may be different between the through hole 50a and the through hole 50g.

In the horizontal direction, the right end er and the left end el of the substantially rhombus and the cut end of the elastic member 35 are substantially at the same position. And the cut | disconnected elastic member 35 is not provided inside each through-hole 50, and the cut | disconnected elastic member 35 is discontinuous in the through-hole 50 in the horizontal direction. This is because the elastic member 35 provided at the position where the through hole 50 is formed is cut together when the through hole 50 is formed. Therefore, for example, the elastic member 35a is substantially continuous between the left end el of the through hole 50a and the right end er of the through hole 50d, and is not provided inside the through hole 50a and the through hole 50d. Similarly, the elastic member 35b is not provided in the through hole 50b, and the elastic member 35c is not provided in the through hole 50c. Further, as shown in FIG. 5, the elastic member 35e and the elastic member 35d are continuous in the portion X that is a portion overlapping the through hole 50a in the lateral direction.

In the rectangular region (lower left hatched portion in FIG. 5) surrounded by the side g along the lateral direction circumscribing each through hole 50 and the side h along the vertical direction, no adhesive or the like is provided. In the present embodiment, the skin side sheet 31 and the non-skin side sheet 32 are joined by an adhesive applied to the elastic member 35. Therefore, in the rectangular region, it is possible to reduce the possibility that the periphery of the through hole 50 becomes hard due to the solidification of the adhesive or the opening becomes insufficient. Moreover, since it is not solidified by the adhesive, a plurality of wrinkles protruding around the skin side and the non-skin side are formed around the through-hole 50 by the original softness of the material such as a nonwoven fabric, thereby making the skin feel softer. be able to.

Further, in the vertical direction, the through hole 50a and the through hole 50c overlap in the horizontal direction. When the longitudinal distance between the lower end of the through hole 50a and the lower end of the through hole 50c is L1, and the longitudinal length L2 of the through hole 50 is L1, L1 is larger than L2 (L1> L2).

The distance L3 in the longitudinal direction between the elastic member discontinuous by the through hole 50 and the elastic member adjacent to the discontinuous elastic member in the vertical direction and not discontinuous by the through hole 50 It is shorter than the length L2 of the hole 50 (L3 <L2). For example, the distance L3 between the elastic member 35a and the elastic member 35e is smaller than the vertical length L2 of the through hole 50a.

<<< Effectiveness of Diaper 1 According to this Embodiment >>>
The through-hole 50 of the diaper 1 of this embodiment can adjust the tension | tensile_strength of the elastic member 35 by cutting | disconnecting the elastic member 35 with the improvement of air permeability by penetrating from the skin side to the non-skin side. .

For example, the case of the through hole 50a and the through hole 50d overlapping in the vertical direction with the elastic member 35a in FIG. 5 will be described. The elastic member 35a and the elastic member 35e are made of the same material, and before the slit S (the through hole 50a and the through hole 50d) is formed, the skin side sheet 31 and the non-skin It is bonded and fixed to the side sheet 32. The elastic member 35a is cut by the slit S (the through hole 50a and the through hole 50d), and the elastic member 35e is not cut by any of the slits S. For this reason, the elastic member 35e adjacent to the elastic member 35a in the vertical direction is provided with a tensile strength in the horizontal direction from Te to the position overlapping the absorber 11 from the left side (center side) of the through hole 50d in the thickness direction. When the tension in the lateral direction of the elastic member 35a is Ta1, the tension Ta1 is smaller than the tension Te (Ta1 <Te). Similarly, when the lateral tension of the elastic member 35a located between the through hole 50d and the through hole 50a is Ta2, the tension Ta2 is smaller than the tension Te (Ta1 <Te), and The tension is smaller than Ta1 (Ta2 <Ta1).

Further, since the elastic member 35a is discontinuous by the through

holes

50a, 50d, etc., when the force in the vertical direction and the horizontal direction is applied, the elastic member 35a is compared with the case where it is continuous. It can expand and contract more freely. In other words, the elastic member 35a on the left side of the through hole 50d and the elastic member 35a positioned between the through hole 50a and the through hole 50d can expand and contract more freely with respect to movement than when they are continuous. Therefore, it becomes easy to follow not only the movement in the horizontal direction but also the movement in the vertical direction. Thereby, the fitting property of the abdomen or the buttocks of the diaper 1 can be improved.

Thus, the tension of the elastic member 35 can be adjusted by providing the elastic member 35 cut by the slit S (through hole 50) and the elastic member 35 not cut by the slit S (through hole 50). Therefore, it is possible to reduce the risk of excessive tightening while securing tightening around the waist, and to improve the fit of the diaper 1.

Further, in the diaper 1 of the present embodiment, the through hole 50 does not overlap the elastic member 35t located on the uppermost side of the diaper 1 in the vertical direction. That is, the elastic member 35 t is not discontinuous by the through hole 50. Therefore, the elastic member 35t located on the uppermost side is not cut, and a continuous elastic member can be maintained in the waistline opening 1HB. Therefore, when the through hole 50 is formed in order to improve the air permeability when worn. However, since the tightening force by the elastic member 35t around the wearer's waist can be secured, it is possible to reduce the possibility that excrement or the like leaks due to insufficient tightening of the waist opening 1HB.

Furthermore, in the present embodiment, the lowermost elastic member 35u disposed below the continuous elastic member 35m and the side elastic member 35s and farthest from the continuous elastic member 35m and the side elastic member 35s. However, it does not overlap with the through hole 50 in the vertical direction. As a result, not only the upper elastic member 35t but also the lowermost elastic member 35u is not discontinuous by the through-hole 50, so that the fit of the leg opening 1HL can be ensured, and excrement etc. can be secured in the leg opening 1HL. Can reduce the risk of leakage.

Furthermore, in this embodiment, by changing the lateral opening width (corresponding to X in FIG. 5) of the through hole 50 according to the position where the through hole 50 is provided in the ventral side exterior member 30 and the back side exterior member 40. The breathability when wearing diapers 1 is improved. Specifically, in a state where the diaper 1 is contracted in the lateral direction, in the longitudinal direction of the abdominal exterior member 30 (the back exterior member 40), the position is lower than the position of the upper end 11ta (11tb) of the absorbent body 11. At least a part of the plurality of through holes 50 provided is between the left end el and the right end er in the lateral direction with respect to the through hole 50 provided above the position of the upper end 11ta (11tb) of the absorber 11. Each through-hole 50 is formed so that the distance between the two increases. The region below the upper end 11ta (11tb) of the absorbent body 11 is a region close to the wearer's crotch and around the leg when the diaper 1 is worn. It is a part where moisture such as is easy to accumulate. Therefore, by increasing the lateral width of the through hole 50 in the region, heat and moisture can be easily released from the through hole 50 to the outside of the diaper 1, and the air permeability of the diaper 1 is improved. Thereby, generation | occurrence | production of the stuffiness and rash at the time of diaper 1 wearing is suppressed, and it can make it hard to produce a discomfort to a wearer.

In addition, “the state in which the diaper 1 is contracted in the lateral direction” is defined as follows. First, with respect to the diaper 1 in the product state, the abdominal exterior member 30 and the back exterior member 40 are pulled outward in the lateral direction to match or be close to the dimensions of the single members of the abdominal exterior member 30 and the back exterior member 40. Extend to length. After this extended state is continued for 15 seconds, the diaper 1 is released from the pulled state and placed on a flat surface such as a desk. In the diaper 1 in which the tension state is released and the flat lay is placed, the abdominal exterior member 30 and the back exterior member 40 contract laterally by the elastic force (tension) of the elastic member 35. And the state which passed for 5 minutes by such plane flat placing is the state which contracted the diaper 1 to the horizontal direction. That is, it can be said that the state in which the diaper 1 is contracted in the lateral direction is the “natural state” of the diaper 1.

The lateral opening width of the through hole 50 can be changed by adjusting the elastic force by the elastic member 35. FIG. 6A is a diagram illustrating the through hole 50a in FIG. FIG. 6B is a diagram illustrating the through hole 50g in FIG. 6A is a through hole that overlaps in the vertical direction with the side elastic member 35s (35a) that is partially discontinuous in the region overlapping the absorber 11 in the central portion in the horizontal direction. Moreover, the through-hole 50g of FIG. 6B is a through-hole which overlaps with the continuous elastic member 35m (35g) continuous in a horizontal direction in the vertical direction. Comparing the through hole 50a and the through hole 50, the lateral opening width Xa of the through hole 50a is larger than the lateral opening width Xg of the through hole 50g. As described above, this is because the expansion ratio of the side elastic member 35s is set higher than the expansion ratio of the continuous elastic member 35m. That is, the tension (elastic force) T2a acting on both lateral ends of the through hole 50a by the side elastic member 35s is the tension (elastic force) T2g acting on both lateral ends of the through hole 50g by the continuous elastic member 35m. Therefore, the through hole 50a is easier to open laterally than the through hole 50g, and the opening width Xa is larger than the opening width Xg (Xa> Xg). Therefore, in the diaper 1, the opening width of the through hole 50 provided in the region where the side elastic member 35s is disposed, that is, the region below the position of the upper end 11ta of the absorber 11 is the same as that of the continuous elastic member 35m. It tends to be larger than the opening width of the through-hole 50 provided in the region where it is disposed, that is, in the region above the position of the upper end 11 ta of the absorber 11.

As described above, in the diaper 1, the elastic force acting on the ventral exterior member 30 is changed for each region by adjusting the expansion ratio of the elastic member 35, the thickness of the elastic member, and the like. Even when S is formed, the lateral opening width of the through-hole 50 can be freely changed, and air permeability can be improved. Further, it is not necessary to change the size of the slit S in order to adjust the opening width of the through hole 50, and the through hole 50 can be formed with high accuracy. Moreover, since the apparatus (for example, cutter) for forming the slit S can use a common thing, the raise of manufacturing cost can be suppressed.

Further, in a state where the diaper 1 is contracted in the lateral direction, a plurality of penetrations provided below the position of the upper end 11ta of the absorbent body 11 in the longitudinal direction of the abdominal exterior member 30 (the back exterior member 40). At least a part of the hole 50 has a smaller opening length in the vertical direction (a distance between the upper end et and the lower end eb) than the through hole 50 provided above the position of the upper end 11ta of the absorber 11. . This is because, in the region below the upper end 11ta of the absorber 11, the through hole 50 is greatly pulled in the horizontal direction, and thus the length L2 in the vertical direction is easily reduced accordingly. For example, in FIGS. 6A and 6B, the vertical length (opening height) L2a of the through hole 50a is smaller than the vertical length (height) L2g of the through hole 50g (L2g> L2a). Therefore, in the region below the position of the upper end 11ta of the absorber 11, the rhombus of the through hole 50 tends to be a horizontally long shape as compared to the upper region. As described above, the region below the upper end 11ta of the absorber 11 is a region close to the wearer's crotch and leg circumference when the diaper 1 is worn. Therefore, when a wearer moves a leg back and forth, it is desirable that the leg bends and deforms easily in the front-rear direction following the movement of the leg. In the diaper 1 of the present embodiment, the horizontally long through hole 50 serves as a base point of bending in the front-rear direction (vertical direction) in the region, so that the abdominal exterior member 30 (back) follows the movement of the wearer's leg. The side exterior member 40) is easily deformed in the front-rear direction, and the fit of the diaper 1 can be further improved. In addition, since a plurality of such horizontally long through holes 50 are intermittently arranged in the horizontal direction (see FIG. 2 and the like), the rows of the through holes 50 are perforated (folded lines such as perforations). The ventral-side exterior member 30 (the back-side exterior member 40) is easily deformed in the front-rear direction (vertical direction).

Further, the fact that the horizontal opening width X and the vertical opening height L2 of the through hole 50 are different between the upper region and the lower region from the position of the upper end 11ta of the absorber 11 means that the through hole The shape at the time of opening 50 is different. Therefore, the shape of the ridge formed around the through hole 50 is also different between the upper region and the lower region than the position of the upper end 11ta of the absorber 11. Thereby, when wearing the diaper 1, when the top part of the heel formed around the through-hole 50 is pressed against the skin of the wearer, it is suppressed that local pressure is applied. That is, the pressure acting on the wearer's skin from the top of the heel is easily dispersed, and the wearer can feel a softer touch. In addition, the shape of the through hole 50 and the surrounding ridges are different, so that a geometric pattern is formed on the abdominal exterior member 30 (the back exterior member 40), and the aesthetic appearance of the diaper 1 is improved. be able to.

It should be noted that the opening width X in the lateral direction may be different for each through-hole 50 within the region below the position of the upper end 11ta of the absorber 11. For example, in FIG. 5, the distance between the left end el and the right end er in the lateral direction may be different between the through hole 50a (first through hole) and the through hole 50b (second through hole). If it does in this way, since the through-hole 50 from which a shape differs in the lower side area | region of the abdominal side exterior member 30 (back side exterior member 40) can be formed, the design property and aesthetics of the diaper 1 can be improved. . Similarly, the opening width X in the horizontal direction may be different for each through-hole 50 even in the region above the position of the upper end 11ta of the absorber 11.

Furthermore, the opening area may be different for each through hole 50 in the region below the position of the upper end 11ta of the absorber 11. For example, in FIG. 5, the through-hole 50a (first through-hole) and the through-hole 50b (second through-hole) may have different open areas (that is, rhombus areas). In this way, a portion having a large opening area and a small portion are provided for each region of the ventral-side exterior member 30 (back-side exterior member 40). The ventilation performance can be finely adjusted according to the position where the through hole 50 is provided, such as increasing the opening area of the hole 50. Thereby, generation | occurrence | production of the stuffiness at the time of diaper 1 wear becomes easier to be suppressed, and it can make it difficult to produce the discomfort by diaper wear. Similarly, the opening area may be different for each through hole 50 in the region above the position of the upper end 11ta of the absorber 11, or the region above and below the position of the upper end 11ta of the absorber 11 may be different. The opening area of the through hole 50 may be different depending on the region.

Even if the opening widths and areas of the through holes 50 are different as described above, the length of the outer edge of the through hole 50 (the circumferential length of the through hole 50) is constant if the length of the slit S is constant. is there. In other words, for each through hole 50, the distance between the upper end et and the left end el, the distance between the left end el and the lower end eb, the distance between the lower end eb and the right end er, and the distance between the right end er and the upper end et. The total value of the distance between them is constant. For example, in FIG. 5, the circumference of the outer edge of the first through hole 50a is equal to the circumference of the outer edge of the second through hole 50b. That is, in each through hole 50, the length of the portion where the material (for example, non-woven fabric) is cut is constant, and the strength around the through hole 50 is less likely to vary. Thereby, even when the ventral-side exterior member 30 (the back-side exterior member 40) is pulled in the horizontal direction or the vertical direction when the diaper 1 is worn, the specific region (around the specific through hole 50). It is difficult to cause problems such as being easily broken, and the diaper 1 as a whole can ensure strength.

Further, in the present embodiment, the ventral-side exterior member 30 has a skin-side sheet 31 and a non-skin-side sheet 32, and the elastic member 35 is disposed between the skin-side sheet 31 and the non-skin-side sheet 32. The adhesive is not provided in a rectangular region that circumscribes at least the through-hole 50 and includes the side g along the horizontal direction and the side h along the vertical direction. As a result, in the rectangular region, it is possible to reduce the risk that the periphery of the through hole 50 becomes hard due to the solidification of the adhesive or the opening becomes insufficient. Moreover, since it is not solidified by the adhesive, an appropriate wrinkle can be formed around the through-hole 50 by the original softness of the material such as a non-woven fabric, and a soft touch can be achieved.

Furthermore, in the present embodiment, the through hole 50b and the through hole 50a are adjacent to each other in the vertical direction, and an elastic member 35e that is another elastic member is interposed between the through hole 50a and the through hole 50b in the vertical direction. Provided (see FIG. 5). Thus, even if the

elastic members

35a and 35b that are discontinuous by the through

holes

50a and 50b are provided to reduce the tightening force, the

elastic members

35a and 35b are adjacent to each other in the vertical direction. By providing the elastic member 35e which is not discontinuous by the hole 50, the tightening force of the diaper 1 can be ensured, and the fear that the diaper 1 will fall when worn can be reduced.

Further, in the present embodiment, the through hole 50a and the through hole 50c are at least partially overlapped in the horizontal direction, and the distance L1 between the through hole 50a and the through hole 50c in the vertical direction is the same as that of the through hole 50a. It is longer than the length (L2) of each through hole 50c. Thereby, even when a force in the vertical direction is applied to the diaper 1 such as when trying to wear it, it is possible to reduce the risk of the peripheries of the through hole 50a and the through hole 50c being torn.

In addition, although the effectiveness of the diaper 1 was demonstrated using the ventral | exterior exterior member 30, it is the same also about the back | dorsal exterior member 40. FIG.

=== 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, the present invention can be changed or improved without departing from the gist thereof, and needless to say, the present invention includes equivalents thereof. For example, the following modifications are possible.

In the above-described embodiment, the through holes 50 are formed in the ventral exterior member 30 and the back exterior member 40, respectively, but the present invention is not limited thereto. What formed the through-hole 50 in either the abdominal side exterior member 30 or the back side exterior member 40 may be used. However, the air permeability of the diaper 1 can be further improved by forming the through holes 50 in both the abdominal exterior member 30 and the back exterior member 40.

In the above-described embodiment, the

sheet members

34 and 44 are provided on the skin side of the abdominal exterior member 30 and the back exterior member 40, respectively, but the present invention is not limited thereto. The

sheet members

34 and 44 may be provided on either the stomach-side exterior member 30 or the back-side exterior member 40, or both may not be provided.

In the above-described embodiment, the distances between the elastic members 35 adjacent to each other in the vertical direction are substantially equal, but the present invention is not limited to this. The elastic members 35 can be arranged at arbitrary intervals in the vertical direction, and may be arranged at different intervals.

FIG. 7 is a plan view of the diaper 100 of another embodiment as viewed from the skin side. As shown in FIG. 7, the through hole 50 may be provided only on the lower side (30c, 40c) which is more likely to sweat, and when the diaper 100 is worn, along the region where it comes into contact with the wearer's throat. The through hole 50 may be disposed. If it does in this way, air permeability can be efficiently improved about the shading part which is easy to sweat. Further, as shown in FIG. 7, the arrangement of the through holes 50 in the abdominal exterior member 30 and the back exterior member 40 may be substantially the same. The arrangement of the through holes 50 can be changed as appropriate.

Although the diaper 1 according to the above embodiment is intended for wearing infants, the present invention is not limited to this, and adults may also be intended for wearing. Moreover, in the above-mentioned embodiment, although what was called a 3 piece type disposable diaper 1 was illustrated as an example of an absorbent article, it is not restricted to this at all. For example, a two-piece disposable diaper or tape having an exterior sheet having an abdominal part, a crotch part, and a dorsal part as a first part and an absorbent main body fixed to the skin side of the exterior sheet as a second part A disposable disposable diaper may be used.

1,100 Diaper (absorbent article), 1HB waist opening, 1HL leg opening,
10 Absorbent body, 10e Lateral end,
11 Absorber, 11ta upper end, 11tb upper end,
13 surface sheet member, 15 back sheet member,
30 ventral side exterior member (abdominal side), 30c part, 30e end, 30s region,
30et ventral upper end, 30se ventral exterior member side edge,
31 skin side sheet, 32 non-skin side sheet, 32f folded portion,
34 sheet member,
35 elastic member,
35a elastic member, 35b elastic member, 35c elastic member, 35e elastic member,
35f elastic member, 35g elastic member, 35h elastic member,
35t upper elastic member, 35m continuous elastic member (lower elastic member),
35s side elastic member (lower elastic member), 35u bottom elastic member,
40 back side exterior member (back side part), 40c part, 40e end part, 40s region,
40et dorsal upper end, 40se dorsal exterior member side edge,
41 skin side sheet, 42 non-skin side sheet, 42f folded portion,
44 sheet members,
45 elastic member,
45t upper elastic member, 45m continuous elastic member (lower elastic member),
45f side elastic member (lower elastic member), 45u bottom elastic member,
50 through holes,
50a through hole (first through hole), 50b through hole (second through hole), 50c through hole,
50d through hole, 50e through hole, 50f through hole, 50g through hole, 50h through hole,
300 belt-like ventral exterior member, 310 belt-like skin-side sheet, 350 elastic member,
400 belt-like dorsal exterior member,
C10 center,
et upper end, eb lower end, el left end, er right end,
S slit

Claims

Having a vertical direction and a horizontal direction orthogonal to each other;
An absorbent main body having a liquid-absorbing absorber;
Abdomen side part joined to one end side in the longitudinal direction of the absorbent main body and provided on the abdomen side of the wearer;
A back side part joined to the other end side in the longitudinal direction of the absorbent main body and provided on the back side of the wearer;
An elastic member provided on at least one of the ventral side and the dorsal side, along the lateral direction;
An absorbent article comprising:
It has a plurality of through holes that penetrate from the skin side to the non-skin side,
With the ventral portion and the dorsal portion contracted in the lateral direction,
The distance between one end and the other end in the lateral direction of at least some of the through holes provided below the position of the upper end of the absorber in the longitudinal direction is:
An absorptive article characterized by being larger than the distance between the one end and the other end in the transverse direction of the penetration hole provided above the position of the upper end of the absorber in the longitudinal direction.
The absorbent article according to claim 1,
For at least one of the ventral side and the dorsal side,
In the longitudinal direction, the magnitude of the force for contracting the lower region in the lateral direction by the action of the elastic force of the elastic member disposed in the region below the upper end of the absorber is,
It is larger than the magnitude of the force causing the lower region to contract in the lateral direction by the action of the elastic force of the elastic member arranged in the upper region of the absorber in the longitudinal direction. Absorbent article characterized by.
The absorbent article according to claim 2,
For at least one of the ventral side and the dorsal side,
The degree of elongation relative to the natural length of at least some of the elastic members joined to the region below the upper end position of the absorber in the longitudinal direction is:
The absorbent article characterized by being larger than the degree of elongation relative to the natural length of the elastic member joined to a region above the position of the upper end of the absorber in the longitudinal direction.
The absorbent article according to any one of claims 1 to 3,
The through hole is provided on the outer side of the absorbent body in the lateral direction,
In the region where the absorber and the elastic member overlap in the thickness direction,
An absorbent article, wherein at least a part of the elastic member is discontinuous.
The absorbent article according to any one of claims 1 to 4,
With the ventral portion and the dorsal portion contracted in the lateral direction,
The distance between one end and the other end in the vertical direction of at least some of the through holes provided below the position of the upper end of the absorber in the vertical direction is:
An absorptive article characterized by being smaller than the distance between the one end and the other end in the longitudinal direction of the penetration hole provided above the position of the upper end of the absorber in the longitudinal direction.
An absorbent article according to any one of claims 1 to 5,
In the region below the upper end position of the absorber in the longitudinal direction, the first through hole and the second through hole,
With the ventral portion and the dorsal portion contracted in the lateral direction,
A distance between one end and the other end of the first through hole in the lateral direction;
The absorbent article, wherein a distance between one end and the other end of the second through hole in the lateral direction is different.
The absorbent article according to claim 6,
With the ventral portion and the dorsal portion contracted in the lateral direction,
An opening area of the first through hole;
An absorbent article, wherein an opening area of the second through hole is different.
An absorbent article according to any one of claims 1 to 7,
The shape of the ridge formed around the through-hole provided below the position of the upper end of the absorber in the longitudinal direction;
An absorbent article, wherein the shape of the ridge formed around the through-hole provided above the position of the upper end of the absorbent body in the longitudinal direction is different.
An absorbent article according to any one of claims 1 to 8,
Absorption characterized in that a plurality of the through-holes are arranged in a region outside the lateral direction of the absorbent body along a region that comes into contact with a wearer's ridge when the absorbent article is worn. Sex goods.