WO2017098751A1 - Pants-type absorbent article - Google Patents

Abstract

Provided is a pants-type absorbent article which has a high degree of freedom in the design of the external appearance, is put on easily, and exhibits excellent fitting properties. This pants-type absorbent article (1) is provided with: an interior body (3) provided with an absorbent body (17); and an exterior body (4) provided with a waist opening (9) and a pair of leg openings (11). The absorbent article (1) is divided into a crotch region (13) and a waist region (15). The exterior body (4) is provided with an outer sheet (21) and an inner sheet (23) which extend downward in the length direction (L) from the waist opening (9), and are disposed inside the waist region (15). The inner sheet (23) includes an upper expansion/contraction part (27) and a lower expansion/contraction part (29) which extend in the peripheral direction (P). The exterior body (4) is provided with an unconnected section in which the lower expansion/contraction part (29) and the outer sheet (21) are not connected. The absorbent article (1) is provided with a pair of inner sheet fixing parts (31) which fix front and rear ends of the interior body (3) to the inner sheet (23) of the exterior body (4).

Description

Pants-type absorbent article

This disclosure relates to a pants-type absorbent article.

As a pants-type absorbent article, for example, disposable diapers and disposable shorts are known.
For example, in Patent Document 1, a crotch region is located between the front and rear waist regions that are opposed to each other, and a waist region side portion that extends in the longitudinal direction of the waist region is connected to the waist region and a pair of leg openings. And a liquid-absorbing inner panel that is attached to the inside of the pant and extends from the crotch region toward the front-rear waist region, and the panel is positioned on the skin contact side. Pants-type disposable wear formed from a liquid-permeable surface sheet that is formed, a substantially liquid-impermeable back sheet located on the non-skin contact side, and a liquid-absorbent core interposed between the sheets In the article, a belt-like auxiliary sheet capable of expanding and contracting in the waist direction extends between at least one of the front and rear waist areas in the waist direction by being interposed between the pants and the panel, Auxiliary sheet is around the trunk An upper end portion extending in the waist direction in the mouth side, a lower end portion extending in the waist direction in the crotch region side and substantially arcing toward the longitudinal central portion of the panel; A waistline side portion of the waistline region, and both side portions extending in the longitudinal direction. In the auxiliary sheet, a middle portion of the lower end portion of the waistline direction is fixed to the panel, and the auxiliary sheet is placed in the waistline direction. In the state where the both sides are fixed to the side part around the trunk of the pants in the state where the pants are stretched, the vertical end of the panel extends to the auxiliary sheet at a position where it extends beyond the lower end of the auxiliary sheet in the vertical direction. The wearing article is characterized by being fixed.

In the wearing article described in Patent Document 1, an “auxiliary sheet” is interposed between a pant having a waist opening and a pair of leg openings and a liquid absorbent inner panel, and the liquid absorbent inner panel Is fixed to the auxiliary sheet, and the auxiliary sheet is fixed to the “body trunk side portion” of the pants. As a result, in the above-mentioned wearing article, the longitudinal center part of the panel can be brought into close contact with the wearer's crotch part, and the auxiliary sheet does not extend in the vertical direction, and the auxiliary sheet wears the pants. It is described that it does not act so as to slide down.

JP 2003-126148 A

However, in the wearing article described in Patent Document 1, since the auxiliary sheet is fixed only on the “trunk circumference side portion” of the pants, when the user widens the trunk circumference opening of the wearing article, the trunk circumference In addition to the pair of leg openings, two openings between the pants and the auxiliary seat can be seen in the openings, making it difficult to determine where the wearer's legs should be placed. There is room.
Accordingly, an object of the present disclosure is to provide a pants-type absorbent article that has a high degree of freedom in design of appearance, excellent ease of wear, and excellent fit when worn.

The present disclosure includes an interior body having an absorbent body and an exterior body having a waist circumference opening and a pair of leg circumference openings, and has a length direction, a circumferential direction, and a thickness direction, a pants-type absorbent The absorbent article is divided into a crotch region between the pair of leg periphery openings and a waist region adjacent to the upper side of the crotch region in the height direction and making a round in the circumferential direction. The exterior body includes an outer sheet that extends downward from the waist opening in the length direction and is disposed in the waist area, and an inner sheet that is disposed on the inner side of the outer sheet. The inner sheet includes an upper stretchable part that extends in the circumferential direction, and a lower stretchable part that is disposed on the lower side in the length direction with respect to the upper stretchable part, and the exterior body includes the lower stretchable part. And the outer sheet are not connected An absorbent having a connecting portion, wherein the absorbent article has a pair of inner sheet fixing portions for fixing front and rear end portions of the interior body to the inner sheet of the exterior body. I found an article.

The pant-type absorbent article of the present disclosure has a high degree of freedom in design of appearance, is easy to wear, and has excellent fit when worn.

FIG. 1 is a perspective view of the side of the ventral side 5 of a pant-type absorbent article 1 according to the first embodiment. FIG. 2 is a perspective view of the back side portion 6 side of the pant-type absorbent article 1 according to the first embodiment. FIG. 3 is an end view taken along the line III-III in FIG. FIG. 4 is a development view of the outer surface of the pant-type absorbent article 1 according to the first embodiment. FIG. 5 is a development view of the inner surface of the pant-type absorbent article 1 according to the first embodiment. FIG. 6 is a view for explaining the contractibility of the lower elastic member 30. FIG. 7 is an end view taken along the end line VII-VII in FIG. FIG. 8 is a view for explaining the inner sheet fixing portion 31 and the outer sheet fixing portion 33 in the pant-type absorbent article 1 according to the first embodiment. FIG. 9 is a view for explaining the pant-type absorbent article 1 according to the second embodiment. FIG. 10 is a view for explaining a pant-type absorbent article 1 according to the third embodiment. FIG. 11 is a view for explaining a pant-type absorbent article 1 according to the fourth embodiment. FIG. 12 is a view for explaining a pant-type absorbent article 1 according to the fifth embodiment. FIG. 13 is a view for explaining an example of a method of forming the outer sheet 21 and the inner sheet 23 having the upper elastic member 28 and the lower elastic member 30. FIG. 14 is a perspective view of the ventral side 305 side of a conventional pant-type absorbent article 301. FIG. 15 is a perspective view of the back side portion 306 side of a conventional pant-type absorbent article 301.

[Definition]
・ "Upper" and "Lower"
In the present specification, “upper side” and “lower side” are terms used for two components to be compared, and mean the upper side and the lower side in the length direction, respectively. For example, the upper elastic part means that it is arranged on the upper side in the length direction as compared with the lower elastic part, and the lower elastic part is on the lower side in the length direction compared with the upper elastic part. It means that it is arranged.
・ "Up" and "Down"
In the present specification, “upper” and “lower” mean upper and lower in the length direction, respectively.

・ "Top" and "Bottom"
In this specification, “upper end” and “lower end” mean the upper edge and the lower edge, respectively.
・ "Top region" and "Bottom region"
In the present specification, the “upper end region” and the “lower end region” mean a region including the upper end and the region including the lower end, respectively.

・ "Outside" and "Inside"
In the present specification, “outer” and “inner” are terms used for two components to be compared, and are closer to the wearer's skin and closer to the wearer's skin, respectively, when worn. Means side. For example, the outer sheet means a sheet disposed on the side far from the wearer side with respect to the wearing time as compared to the inner sheet, and the inner sheet means when worn compared to the outer sheet. As a reference, it means a sheet disposed on the side closer to the wearer.

・ "Front" and "Back"
In this specification, “front” and “rear” are terms used for two components to be compared, and mean the front and rear of the wearer, respectively, based on wearing. For example, the front end portion and the rear end portion of the interior body mean the front end portion and the rear end portion of the wearer, respectively.

・ "Ventral part", "Dorsal part" and "Joint part"
In the present specification, the “abdominal side” and the “back side” are distinguished from the “joining part” joining them. Therefore, for example, the outer body of the absorbent article has a non-connecting portion extending in the circumferential direction, in which the lower elastic part of the inner sheet and the outer sheet are not connected in the entire region of the abdominal part and the dorsal part. In embodiment which has, in the junction part of a ventral | abdominal side part and a back side part, the part originating in the lower expansion-contraction part of an inner sheet | seat and the part originating in an outer sheet | seat may be connected.

The present disclosure relates to the following aspects.
[Aspect 1]
A pants-type absorbent article comprising an interior body having an absorbent body and an exterior body having a trunk periphery opening and a pair of leg periphery openings, and having a length direction, a peripheral direction, and a thickness direction,
The absorbent article is partitioned into a crotch region between the pair of leg periphery openings, and a waist region adjacent to the upper side in the height direction of the crotch region and making a round in the circumferential direction,
The exterior body includes an outer sheet that extends downward from the waist opening and is disposed in the waist area, and an inner sheet that is disposed on the inner side of the outer sheet.
The inner sheet includes an upper stretchable part that extends in the circumferential direction, and a lower stretchable part that is disposed on the lower side in the height direction than the upper stretchable part,
The exterior body has a non-connecting portion where the lower stretchable portion and the outer sheet are not connected,
The absorbent article has a pair of inner sheet fixing portions that fix the front and rear ends of the interior body to the inner sheet of the exterior body.
The said absorbent article characterized by the above-mentioned.

In the above absorbent article, when the user expands the waist opening of the absorbent article so that the wearer can wear it, a pair of leg openings to which the wearer's legs should be placed in the waist opening. Since the part can be clearly recognized, the absorbent article is excellent in ease of wearing. Further, since the outer package of the absorbent article has a non-connected portion in which the lower stretchable portion and the outer sheet are not connected, the lower stretchable portion in the non-connected portion is affected by the rigidity of the outer sheet. It is hard to receive and the said exterior body and by extension, the said absorbent article are excellent in the fitting property at the time of wear. Furthermore, in the absorbent article, the outer sheet is less likely to have wrinkles associated with the contraction of the lower stretchable part in the non-connecting part, and the absorbent article is excellent in the aesthetics of the outer sheet and is free to design the appearance. Excellent in degree.

[Aspect 2]
The absorbent article has a pair of joint portions joining the abdominal side portion and the back side portion between the abdominal side portion and the back side portion, and the waist periphery opening portion and the pair of leg periphery opening portions. The absorbent article according to aspect 1, comprising:
The absorbent article has the same effect as that of the first aspect.

[Aspect 3]
The inner sheet has at least the lower stretchable part in a range included in both side portions and the ventral side portion and the back side portion of the absorbent article. The absorbent article according to aspect 2, including the non-connecting portion extending in the direction.

Generally, an absorbent article does not have an interior body, in particular, an absorbent body on both sides, and therefore, when the lower stretchable part is connected to the outer sheet on both sides of the absorbent article, the outer sheet has wrinkles. It tends to be formed. Since the exterior body of the absorbent article has a non-connecting portion extending in the circumferential direction in which the lower stretchable portion and the outer sheet are not connected within the predetermined range, Compared to the case where there is no unconnected portion (in the case where the lower stretchable portion and the outer sheet are connected to each other within the predetermined range), the outer sheet in the predetermined range. It is difficult for wrinkles to be formed, and the exterior body, and thus the absorbent article, is excellent in the degree of freedom in designing the appearance.

[Aspect 4]
The exterior body includes a connecting portion in which the outer sheet and the inner sheet are directly or indirectly connected to the pair of inner sheet fixing portions in a range overlapping with the thickness direction. The absorbent article as described in any one of 3.
The outer package of the absorbent article includes a connection portion in which the outer sheet and the inner sheet are directly or indirectly connected to the pair of inner sheet fixing portions in a range overlapping with the thickness direction of the absorbent article. . The inner sheet is less likely to shrink and less likely to wrinkle within a range where the interior body is fixed by the inner sheet fixing portion. Therefore, even if the outer sheet is connected to the inner sheet within the range, the outer sheet is less likely to wrinkle, and the outer package, and thus the absorbent article, is excellent in the appearance of the outer sheet.

[Aspect 5]
The absorptive article according to aspect 2 or 3 in which the inner sheet is not joined to the outer sheet except the upper elastic part in the ventral part and the back part.
In the absorbent article, since the inner sheet is not joined to the outer sheet except for the upper stretchable part, wrinkles are hardly formed on the outer sheet, and the absorbent article is excellent in the degree of freedom in designing the appearance.

[Aspect 6]
The aspect 1 to 5, wherein the absorber of the interior body is fixed to the lower stretchable portion of the inner sheet by the pair of inner sheet fixing portions in the waist region. Absorbent articles.
In the absorbent article, since the absorbent body of the interior body is fixed to the lower elastic part of the inner sheet by the pair of inner sheet fixing parts in the waistline region, the absorbent body expands and contracts on the lower side when worn. It becomes easy to be fixed to a wearer's waist by a part, it becomes difficult for an absorbent article to slip down, and the said absorbent article is excellent in the fitting property at the time of wear.

[Aspect 7]
In the range where the lower elastic part and the absorber overlap in the thickness direction, the contraction force of the lower elastic part is such that the lower elastic part and the absorber are in the thickness direction. The absorptive article according to mode 6 which is weaker than the contraction force of the lower elastic part in the range which does not overlap.
In the above absorbent article, the contraction force of the lower stretchable part in the range overlapping with the absorber is weaker than the contraction force of the lower stretchable part in the range not overlapping with the absorber, so the absorber is compressed in the plane direction. The absorbent article is excellent in its appearance and the liquid to be absorbed is difficult to leak.

[Aspect 8]
Any one of Aspects 1 to 7, wherein the absorbent article is provided with the interior body such that at least one end portion in the longitudinal direction of the interior body exists inside the inner sheet of the exterior body. An absorbent article according to any one of the above.
The absorbent article is provided with the interior body such that at least one end portion in the longitudinal direction thereof is present on the inner side of the inner sheet of the exterior body. The edge part which exists inside is hard to leave | separate from a wearer's body. Therefore, the said absorbent article is excellent in leak resistance.

[Aspect 9]
Aspect 1 in which the absorbent article includes the interior body such that at least one end portion in the longitudinal direction of the interior body is disposed between the outer sheet and the inner sheet of the exterior body. The absorbent article according to any one of 1 to 8.
The absorbent article includes the interior body so that at least one end in the longitudinal direction thereof exists between the outer sheet and the inner sheet of the exterior body. The end portion disposed between the outer sheet and the inner sheet is difficult to hit the wearer. Therefore, the said absorbent article is excellent in a feeling of wear.

[Aspect 10]
Aspect 1 in which the absorbent article has an outer sheet fixing part that fixes the inner body to the outer sheet, and each of the pair of inner sheet fixing parts is separated from the outer sheet fixing part. The absorbent article according to any one of 1 to 9.

In the absorbent article, each of the pair of inner sheet fixing portions and the outer sheet fixing portion are separated from each other. Therefore, in the absorbent article, the inner sheet and the outer sheet are not easily affected by each other, the outer sheet is less affected by the inner sheet, excellent in aesthetics, and the lower elastic part of the inner sheet is It is difficult to be affected by the outer sheet and can exhibit an expansion / contraction function.

[Aspect 11]
The absorbent article according to any one of aspects 1 to 10, wherein a portion of the outer sheet that overlaps with the lower stretchable portion in the thickness direction is less likely to shrink than the lower stretchable portion.
In the absorbent article, the lower stretchable portion of the outer sheet and the portion overlapping in the thickness direction of the absorbent article are less likely to shrink than the lower stretchable portion, so the overlapped portion becomes the lower stretchable portion. Compared with the case where it is fixed, wrinkles of the outer sheet are reduced, and the absorbent article is excellent in its appearance.

[Aspect 12]
The absorbent article according to any one of embodiments 1 to 11, wherein the outer sheet has a pattern.
Since the said absorbent article is hard to form a wrinkle in an outer sheet | seat, the pattern which an outer sheet | seat has is easy to visually recognize from the exterior of an absorbent article.

The pants-type absorbent article of the present disclosure will be described in detail below.
FIG. 1 to FIG. 8 are diagrams for explaining a pant-type absorbent article, specifically, a pant-type disposable diaper, according to one embodiment (first embodiment) of the present disclosure.

Specifically, FIG. 1 and FIG. 2 are a perspective view on the abdomen side portion 5 side and a perspective view on the back side portion 6 side of the pant-type absorbent article 1, respectively. FIG. 3 is an end view taken along the line III-III in FIG. FIG. 4 is a development view of the outer surface of the pant-type absorbent article 1. FIG. 5 is a development view of the inner surface of the pant-type absorbent article 1. FIG. 6 is a diagram for explaining the contraction force of the lower elastic member 30. FIG. 7 is an end view taken along the end line VII-VII in FIG. FIG. 8 is a view for explaining the inner sheet fixing portion 31 and the outer sheet fixing portion 33 in the pant-type absorbent article 1. 3 and 7 are schematically illustrated so that the relationship between the constituent members can be understood.
The exterior body 4 of the absorbent article according to the first embodiment includes the auxiliary sheet 107, a pair of leg-around elastic members 101 (101a, 101b) between the auxiliary sheet 107 and the outer sheet 21, etc. The detailed explanation is omitted.

The pant-type absorbent article 1 according to the first embodiment includes an interior body 3 having an absorber 17 and an exterior body 4 having a trunk periphery opening 9 and a pair of leg periphery openings 11. The pant-type absorbent article 1 has a length direction L, a peripheral direction P, and a thickness direction T. The pant-type absorbent article 1 includes a crotch region 13 between the pair of leg-hole openings 11, and a pair of joints 7 (7a, 7b) adjacent to the upper side of the crotch region 13 in the length direction L. It is divided into a waist region 15 that wraps around in the circumferential direction P.

The pants-type absorbent article 1 is formed by integrating the abdominal part 5 and the dorsal part 6 with the abdominal part 5 and the dorsal part 6, and a pair of joint parts connecting them. 7 (7a, 7b), a trunk periphery opening 9, and a pair of leg openings 11 (11a, 11b). In addition, a pair of junction part 7a and a pair of junction part 7b are each arrange | positioned at a wearer's right side and left side. The pair of leg-hole openings 11a and the pair of leg-hole openings 11b are also disposed on the wearer's right side and left side, respectively.

4 and 5, the pant-type absorbent article 1 has a longitudinal direction and a width direction in the unfolded state, and the longitudinal direction corresponds to the length direction L. The exterior body 4 of the pants-type absorbent article 1 has a pair of indented portions that are recessed in the width direction at the center of both side portions in the longitudinal direction in a developed state, and has a so-called hourglass shape. The pair of depressions form a pair of leg- hole openings 11a and 11b.

As shown in FIG. 5, the pant-type absorbent article 1 includes an interior body 3 having a longitudinal direction, and the interior body 3 has a longitudinal direction of the exterior body 4 of the pant-type absorbent article 1. It arrange | positions between a pair of hollow parts which form a pair of leg periphery opening parts 11a and 11b so that it may correspond with the longitudinal direction in the expansion | deployment state.

The interior body 3 is present on the skin side of the wearer and forms a liquid-permeable layer (not shown) that forms a skin contact surface, a liquid-impermeable layer (not shown) that exists on the clothing side, and In the drawing, the interior body 3 may be expressed as one member for the sake of convenience.
In addition, the outer edge of the interior body 3 and the outer edge of the absorber 17 in the unfolded state substantially coincide with each other.

As shown in FIGS. 3 and 7, the exterior body 4 of the pant-type absorbent article 1 extends downward from the waist opening 9 in the length direction L in the abdomen side portion 5 and the back side portion 6. The outer sheet | seat 21 (21a, 21b) arrange | positioned in the trunk periphery area | region 15 and the inner sheet | seat 23 (23a, 23b) arrange | positioned inside the outer sheet | seat 21 (21a, 21b) are provided.

Specifically, the exterior body 4 of the pant-type absorbent article 1 is an outer side that extends downward from the waistline opening 9 in the lengthwise direction L and is disposed in the waistline region 15 on the abdomen side portion 5. A sheet 21a and an inner sheet 23a disposed inside the outer sheet 21a are provided. Similarly, the exterior body 4 of the pant-type absorbent article 1 has an outer sheet 21b that extends downward from the waistline opening 9 in the lengthwise direction L and is disposed in the waistline region 15 on the back side portion 6. And an inner sheet 23b disposed inside the outer sheet 21b.

As shown in FIGS. 3 and 7, the inner sheet 23 (23 a, 23 b) includes an upper elastic part 27 (27 a, 27 b) extending in the circumferential direction P on the ventral side 5 and the back side 6, and the upper side The lower expansion-contraction part 29 (29a, 29b) arrange | positioned below the length direction L rather than the expansion-contraction part 27 (27a, 27b) is provided.

Specifically, in the ventral side portion 5, the inner sheet 23a includes an upper stretchable portion 27a that extends in the circumferential direction P, and a lower stretchable portion 29a that is disposed below the lengthwise direction L with respect to the upper stretchable portion 27a. Is provided. Similarly, in the back side portion 6, the inner sheet 23 b includes an upper stretchable portion 27 b extending in the circumferential direction P, and a lower stretchable portion 29 b disposed below the lengthwise direction L with respect to the upper stretchable portion 27 b. .

In the ventral part 5 and the dorsal part 6, the upper elastic part 27 (27a, 27b) is composed of an upper elastic member 28 (28a, 28b) made of a plurality of thread-like rubbers. Specifically, in the ventral side part 5, the upper elastic part 27a is composed of an upper elastic member 28a made of a plurality of thread-like rubbers. Similarly, in the back side part 6, the upper elastic part 27b is composed of an upper elastic member 28b made of a plurality of thread-like rubbers.

In the ventral side part 5 and the dorsal side part 6, the upper elastic member 28 (28a, 28b) is stretched and fixed to the inner sheet 23 (23a, 23b), which is a nonwoven fabric, with an adhesive. In other words, the upper elastic member 28 (28a, 28b) is fixed to the inner sheet 23 (23a, 23b) with an adhesive so as to exhibit a contraction force when worn.

Specifically, in the ventral side portion 5, the upper elastic member 28a is fixed to the inner sheet 23a, which is a nonwoven fabric, with an adhesive in an expanded state. In other words, the upper elastic member 28a is fixed to the inner sheet 23a with an adhesive so as to exhibit a contraction force when worn. Similarly, in the back side portion 6, the upper elastic member 28b is fixed to the inner sheet 23b, which is a nonwoven fabric, with an adhesive in an expanded state. In other words, the upper elastic member 28b is fixed to the inner sheet 23b with an adhesive so as to exhibit a contraction force when worn. By doing so, the pants-type absorbent article 1 can be fitted to the wearer's body.
The upper elastic member 28a and the upper elastic member 28b are also fixed to the outer sheet 21a and the outer sheet 21b with an adhesive, respectively.

In the abdominal side portion 5 and the dorsal side portion 6, the lower stretchable portion 29 (29a, 29b) includes a lower elastic member 30 (30a, 30b) made of a plurality of thread rubbers and a lower elastic member 30 (30a, 30b). 30b) and a part of the inner sheet 23 (23a, 23b) to which it is fixed.

Specifically, in the ventral side portion 5, the lower stretchable portion 29a includes a lower elastic member 30a made of a plurality of thread-like rubbers and a part of the inner sheet 23a to which the lower elastic member 30a is fixed. Composed. Similarly, in the back part 6, the lower elastic part 29b is composed of a lower elastic member 30b made of a plurality of thread-like rubbers and a part of the inner sheet 23b to which the lower elastic member 30b is fixed. The

In the ventral side portion 5 and the dorsal side portion 6, the lower elastic member 30 (30a, 30b) is stretched and fixed to the inner sheet 23 (23a, 23b), which is a nonwoven fabric, with an adhesive. In other words, the lower elastic member 30 (30a, 30b) is fixed to the inner sheet 23 (23a, 23b) with an adhesive so as to exhibit a contraction force when worn.

Specifically, in the ventral side portion 5, the lower elastic member 30a is fixed to the inner sheet 23a, which is a nonwoven fabric, with an adhesive in an expanded state. In other words, the lower elastic member 30a is fixed to the inner sheet 23a with an adhesive so as to exhibit a contraction force when worn. Similarly, in the back side portion 6, the lower elastic member 30b is fixed to the inner sheet 23b, which is a nonwoven fabric, with an adhesive in an expanded state. In other words, the lower elastic member 30b is fixed to the inner sheet 23b with an adhesive so as to exhibit a contraction force when worn. By doing so, the pants-type absorbent article 1, particularly the interior body 3, can be fitted to the wearer's body.
The lower elastic member 30a and the lower elastic member 30b are also fixed to the intermediate sheet 25a and the intermediate sheet 25b with an adhesive, respectively.

The pants-type absorbent article 1 has an end portion including the longitudinal end edge 3a and an end portion including the longitudinal end edge 3b of the interior body 3 in the waist region 15 as an inner sheet 23a and an inner sheet 23b, respectively. It has a pair of inner sheet | seat fixing | fixed part 31a and inner sheet | seat fixing | fixed part 31b to fix. In other words, the end portion including the longitudinal end edge 3a and the end portion including the longitudinal end edge 3b of the interior body 3 are respectively connected to the pair of inner sheet fixing portions 31a and the inner sheet fixing portion 31b. It is fixed to the sheet 23a and the inner sheet 23b.

Specifically, the pant-type absorbent article 1 has an inner side that fixes the inner body 3 to the lower elastic part 29a of the inner sheet 23a and the lower elastic part 29b of the inner sheet 23b in the waist region 15. It has a sheet fixing part 31a and an inner sheet fixing part 31b. Specifically, the end portion including the longitudinal end edge 3a and the end portion including the longitudinal end edge 3b of the interior body 3 are respectively connected to the inner sheet 23a via the inner sheet fixing portion 31a and the inner sheet fixing portion 31b. The lower elastic part 29a and the lower elastic part 29b of the inner sheet 23b are fixed.
The pair of inner seat fixing portions 31 is divided into an inner seat fixing portion 31 a disposed on the ventral side portion 5 and an inner seat fixing portion 31 b disposed on the back side portion 6.

The exterior body 4 of the pant-type absorbent article 1 includes, on the ventral side part 5, a non-connecting part 35a extending in the circumferential direction P, in which the lower stretchable part 29a and the outer sheet 21a are not connected, 5 in total. In addition, the exterior body 4 of the pant-type absorbent article 1 has a back-side portion 6 on which a non-connecting portion 35b extending in the circumferential direction P, where the lower stretchable portion 29b and the outer sheet 21b are not connected, The entire side portion 6 is provided.

14 and 15 are perspective views of a conventional pant-type absorbent article 301, specifically, the stomach side 305 side and the back side 306 side of the disposable diaper.
A conventional pant-type absorbent article 301 has an abdominal side 305, a back side 306, and a joint 307 (307a, 307b) that joins the abdominal side 305 and the back side 306, and has a waist opening. It has a portion 309, a pair of leg-hole openings 311 (311a, 311b), and has a length direction L and a peripheral direction P. A conventional pant-type absorbent article 301 is partitioned into a waist region 315 and a crotch region 313.

Further, the conventional pant-type absorbent article 301 includes an outer sheet 321 (321a, 321b), an inner sheet (not shown), an upper elastic part 327 (327a, 327b), as in the absorbent article of the present disclosure. The upper elastic member 328 (328a, 328b), the lower elastic part 329 (329a, 329b), the lower elastic member 330 (330a, 330b), and the like are included.

As shown in FIG. 14, in the conventional pant-type absorbent article 301, an outer sheet 321a and an inner sheet (not shown) sandwich a lower elastic member 330a in the ventral side 305. Since they are connected, a plurality of wrinkles along the length direction L are generated in the outer sheet 321a in accordance with the contraction of the lower elastic member 330a (lower elastic part 329a), and there is room for improvement from the viewpoint of aesthetic appearance. There is.

Similarly, as shown in FIG. 15, in the back side portion 306, the outer sheet 321b and the inner sheet (not shown) are connected with the lower elastic member 330b interposed therebetween, so that the lower side Along with the contraction of the elastic member 330b (lower stretchable portion 329b), a plurality of wrinkles along the length direction L occurs on the outer sheet 321b, and there is room for improvement from the viewpoint of the appearance of the appearance.

On the other hand, since the exterior body 4 of the pant-type absorbent article 1 according to the first embodiment has the non-connecting portion 35a in the ventral side portion 5, as shown in FIG. It is difficult to have wrinkles associated with the contraction of the side stretchable portion 29a, and the exterior body 4, and thus the pants-type absorbent article 1 are excellent in appearance, particularly in the outer sheet 21a. Similarly, since the exterior body 4 of the pant-type absorbent article 1 has the non-connecting portion 35b in the back side portion 6, as shown in FIG. 2, the outer sheet 21b is connected to the lower stretchable portion 29b. It is hard to have wrinkles due to shrinkage, and the exterior body 4 and thus the pants-type absorbent article 1 are excellent in appearance, particularly in the appearance of the outer sheet 21b.
The pants-type disposable diaper 1 according to the first embodiment has fewer vertical lines in the waistline region 15 and has an appearance close to underwear as compared with the conventional pants-type absorbent article 301.

FIG. 6 is a view for explaining the contractibility of the lower elastic member 30 (30a, 30b). Specifically, FIG. 6 omits the inner body end portion protection sheet 105a from the developed view of the inner surface of the pant-type absorbent article 1 shown in FIG. 5, and the outer edge of the absorber 17 (the inner body 3). This is indicated by a dotted line. As shown in FIG. 6, in the ventral side portion 5, the lower elastic member 30 a (lower stretchable portion 29 a) and the absorbent body 17 are in the range where they overlap in the thickness direction of the absorbent article 1. The contraction force of the elastic member 30a ′ (lower elastic part 29a ′) is within a range where the lower elastic member 30a (lower elastic part 29a) and the absorber 17 do not overlap in the thickness direction of the absorbent article 1. It is weaker than the contraction force of the lower elastic member 30a ″ (lower elastic part 29a ″). By doing so, due to the weak contraction force of the lower elastic member 30a ′ (lower stretchable portion 29a ′), the longitudinal edge that is the front edge in the longitudinal direction of the absorber 17, particularly the absorber 17 17a becomes difficult to be compressed in the plane direction, particularly in the width direction, the absorbent article 1 is excellent in its appearance, and the liquid to be absorbed is difficult to leak.

Similarly, in the back side portion 6, the lower elastic member 30 b ′ (in the range where the lower elastic member 30 b (lower stretchable portion 29 b) and the absorber 17 overlap in the thickness direction of the absorbent article 1. The lower elastic member in a range where the contraction force of the lower elastic part 29b ′) is such that the lower elastic member 30b (lower elastic part 29b) and the absorber 17 do not overlap in the thickness direction of the absorbent article 1. It is weaker than the contraction force of 30b ″ (lower elastic part 29b ″). By doing so, due to the weak contraction force of the lower elastic member 30b ′ (lower elastic part 29b ′), the longitudinal end edge, which is the rear edge in the longitudinal direction, of the absorbent body 17, particularly the absorbent body 17 17b becomes difficult to be compressed in the plane direction, particularly in the width direction, the absorbent article 1 is excellent in its appearance, and the liquid to be absorbed is difficult to leak.

In the absorbent article 1 according to the first embodiment, in the waist circumference region 15 of the abdomen side portion 5, the absorbent article 1 is the interior body 3, and the longitudinal edge 3a of the interior body 3 is inside the inner sheet 23a. Specifically, it is provided to exist on the skin side of the wearer. By doing so, at the time of wearing, the longitudinal edge 3a of the interior body 3 is unlikely to be separated from the wearer's body, and the absorbed liquid is difficult to leak from the longitudinal edge 3a side of the interior body 3.

Similarly, in the absorbent article 1 according to the first embodiment, in the waist circumference region 15 of the back side portion 6, the absorbent article 1 is the interior body 3, and the longitudinal edge 3b of the interior body 3 is the inner sheet 23b. More specifically, it is provided so as to exist on the skin side of the wearer. By doing so, the longitudinal edge 3b of the interior body 3 is less likely to be separated from the wearer's body when worn, and the absorbed liquid is less likely to leak from the longitudinal edge 3b side of the interior body 3.

In the absorbent article 1 according to the first embodiment, the interior body 3 is disposed between the inner sheet fixing portion 31a on the longitudinal edge 3a side and the inner sheet fixing portion 31b on the longitudinal edge 3b side. The outer sheet fixing portion 33 fixes the outer sheet 21 to the outer sheet 21. The outer seat fixing portion 33 is disposed on the same side as the inner seat fixing portion 31a and the inner seat fixing portion 31b with the interior body 3 as a reference. That is, the outer seat fixing portion 33 is disposed outside the interior body 3 together with the inner seat fixing portion 31a and the inner seat fixing portion 31b.

As shown in FIG. 8, in the ventral side portion 5, the distance between the outer sheet fixing portion 33 and the inner sheet fixing portion 31 a on the side of the longitudinal end edge 3 a of the interior body 3 (distance in the length direction L): D ₁ is about 5% of the height of the crotch region 13 in the length direction L: H. By doing so, in the ventral side part 5, the inner sheet 23a and the outer sheet 21a are less affected by each other. Specifically, the outer sheet 21a is less affected by the inner sheet 23a, and the aesthetic appearance is reduced. The lower stretchable portion 29a of the inner sheet 23a is not easily affected by the outer sheet 21a, and the lower stretchable portion 29a can exhibit the stretchable function. Moreover, in the abdominal side part 5, the interior body 3 can be firmly fixed to the outer sheet 21a, and the interior body 3, in particular, the twisting of the absorbent body 17 can be prevented.

Similarly, in the back side portion 6, the distance between the outer seat fixing portion 33 and the inner seat fixing portion 31b on the side of the longitudinal end edge 3b of the interior body 3 (distance in the length direction L): D ₂ is crotch The height in the length direction L of the region 13 is about 20% of H. By doing so, in the back side portion 6, the inner sheet 23b and the outer sheet 21b are less affected by each other. Specifically, the outer sheet 21b is less susceptible to the influence of the inner sheet 23b. The lower stretchable portion 29b of the inner sheet 23b is not easily affected by the outer sheet 21b, and the lower stretchable portion 29b can exhibit the stretchable function. The outer sheet 21b of the dorsal side portion 6 is generally larger in area than the outer sheet 21a of the ventral side portion 5, and is less susceptible to the movement of the wearer's legs. distance: the D _2, the above in the ventral 5: to be greater than D _1, there is a tendency that the absorbent article 1 has excellent appearance.

In the absorbent article 1 according to the first embodiment, the lower elastic part 29a of the outer sheet 21a and the overlapping part in the thickness direction T of the absorbent article 1 in the ventral side part 5 are lower than the lower elastic part 29a. Also difficult to shrink. Similarly, in the absorbent article 1 according to the first embodiment, in the back side portion 6, a portion of the outer sheet 21 b that overlaps with the lower stretchable portion 29 b and the thickness direction T of the absorbent article 1 is a lower stretchable portion. It is harder to contract than the portion 29b.

By doing so, the outer sheet 21a, 21b in the abdominal side part 5 is less wrinkled by the outer sheet 21a when the lower elastic part 29a contracts compared to the case where the outer elastic parts 29a are fixed to the lower elastic part 29a. Is difficult to form. Moreover, in the back side part 6, compared with the case where the outer sheet 21b is fixed to the lower elastic part 29b, when the lower elastic part 29b contracts, the outer sheet 21b is less likely to be wrinkled. .

The exterior body 4 of the absorbent article 1 according to the first embodiment includes an abdomen between the abdominal side part 5 and the back side part 6, the waistline opening part 9 and the pair of leg periphery opening parts 11 (11 a, 11 b). The exterior body of the absorbent article according to the present disclosure includes a trunk periphery opening and a pair of leg openings, which have a pair of joints 7 (7a, 7b) connecting the side part 5 and the back side part 6. It is not necessary to have a pair of joined parts formed between the two parts.

In the embodiment in which the absorbent article of the present disclosure has the pair of joints described above, the pair of joints is optional as long as the pair of joints is formed between the waist opening and the pair of leg openings. The pair of joint portions can be disposed, for example, on both sides of the absorbent article, the ventral side of the absorbent article, the back side of the absorbent article, and the like.

In the absorbent article of the present disclosure, the upper side of the inner sheet is located in the waistline opening, and the lower end thereof is in the waistline region. From the viewpoint of holding the inner body, it is preferable that the lower end of the inner sheet substantially coincides with the lower end of the waistline region.

Moreover, it is preferable that the said inner sheet | seat is extended in the circumferential direction in the trunk periphery area | region, and is making one round in the circumferential direction in the trunk periphery area | region. This is from the viewpoint of making the upper stretchable part and the lower stretchable part go around in the waist direction.
Note that when the absorbent article of the present disclosure has the above-described ventral portion, dorsal portion, and a pair of joint portions, the inner sheet is paired in the waist region of the ventral portion and the dorsal portion. It is preferable to make a round in the circumferential direction with the joint portion therebetween. This is from the viewpoint of making the upper stretchable portion and the lower stretchable portion make a round in the trunk periphery direction with a pair of joint portions interposed therebetween.

In the absorbent article of the present disclosure, the upper elastic portion of the inner sheet extends in the circumferential direction of the absorbent article in the waistline region, and is disposed around the waistline opening along the waistline opening. It is preferable that This is from the viewpoint of preventing the absorbent article from slipping off.

Moreover, in the absorbent article of the present disclosure, it is preferable that the upper stretchable part makes a round in the circumferential direction in the waist area. This is from the viewpoint of preventing the absorbent article from slipping off. Further, when the absorbent article of the present disclosure has the above-described abdominal side part, dorsal side part and a pair of joint parts, the upper stretchable part is in the waist area of the abdominal side part and the dorsal side part. It is preferable to make a round in the circumferential direction with the pair of joints interposed therebetween. This is from the viewpoint of preventing the absorbent article from slipping off.

In the absorbent article of the present disclosure, the lower stretchable portion extends in the circumferential direction of the absorbent article in the waistline region, and is disposed at the lower end of the waistline region along the lower end of the waistline region. It is preferable. This is because the inner body is in close contact with the wearer.

In addition, when the absorbent article of the present disclosure has the above-described abdomen side portion, dorsal side portion, and a pair of joint portions, the lower stretchable portion is in the waist region, the abdominal side portion, and the dorsal side portion. It is preferable to make a round in the circumferential direction except for a range that overlaps in the thickness direction of the absorbent body and the absorbent article with the pair of joint portions interposed therebetween. This is from the viewpoint of preventing the absorbent body from being compressed and twisted in the planar direction while the absorbent body is closely attached to the wearer.

In the absorbent article of the present disclosure, the upper stretchable part and the lower stretchable part may be separated by a predetermined distance as in the absorbent article 1 according to the first embodiment, and the upper stretchable part, The lower stretchable part may be continuous without being separated.

In the absorbent article according to the present disclosure, the upper end of the outer sheet is located in the waist opening, the lower end is not particularly limited, and the lower end may not exist. When the outer sheet has a lower end, it is preferable that the lower end of the outer sheet exists below the lower end of the inner sheet. The lower end of the outer sheet may be present in the crotch portion. This is because the outer sheet covers the entire inner sheet so that the absorbent article is excellent in appearance. As an example in which the outer sheet does not have a lower end, as in the absorbent article 1 according to the first embodiment, the front outer sheet (for example, the outer sheet on the abdominal side) and the rear outer sheet (for example, the back side) The outer sheet) covers the crotch part and is connected at the crotch part.

Further, it is preferable that the outer sheet extends in the circumferential direction in the region around the trunk and makes a round in the circumferential direction in the region around the trunk. In addition, when the exterior body 4 of the absorbent article of the present disclosure has the abdomen side portion, the back side portion, and the pair of joint portions described above, the outer sheet includes the waist region, the abdominal side portion, and the back side. It is preferable that the part makes a round in the circumferential direction with the pair of joints interposed therebetween.

In the absorbent article 1 according to the first embodiment, in the waist circumference region 15 of the abdomen side portion 5, the absorbent article 1 is the interior body 3, and the longitudinal edge 3a and the longitudinal edge 3b of the interior body 3 are Although it is provided to exist inside the inner sheet 23, in the absorbent article of the present disclosure, if the inner body is fixed to the inner sheet, between the inner body and the inner sheet of the outer body, The positional relationship between the inner side and the outer side is not particularly limited.

FIG. 9 is a view for explaining a pant-type absorbent article 1 according to another embodiment (second embodiment) of the present disclosure, and corresponds to FIG. In the absorbent article 1 according to the second embodiment, in the waistline region 15, specifically, in the waistline region 15 of the ventral side part 5, the absorbent article 1, the interior body 3, the longitudinal direction of the interior body 3. The edge 3a is provided so that it may be arrange | positioned between the outer side sheet | seat 21a of the exterior body 4, and the inner side sheet | seat 23a. Similarly, in the waist circumference region 15 of the back side portion 6, the absorbent article 1 includes the interior body 3, the longitudinal edge 3b of the interior body 3, the outer sheet 21b of the exterior body 4, and the inner sheet 23b. It is prepared to be placed between them. By doing so, the longitudinal edge 3a and the longitudinal edge 3b of the interior body 3 are less likely to hit the wearer, and the absorbent article 1 is excellent in wearing feeling. Since the absorbent article 1 according to the second embodiment is the same as the absorbent article according to the first embodiment except for the positional relationship between the interior body 3 and the inner sheet 23, the description thereof is omitted.

In the absorbent article 1 according to the first embodiment, the upper elastic part 27 is composed of an upper elastic member 28 that is a plurality of thread rubbers, and the lower elastic part 29 is a plurality of thread rubbers. Although comprised by the lower elastic member 30, in the absorbent article of this indication, each of an upper side expansion-contraction part and a lower side expansion-contraction part is not limited to the said embodiment.

In the absorbent article of the present disclosure, the upper elastic member and the lower elastic member constituting the upper elastic member and the lower elastic member, respectively, for example, thread rubber, flat rubber, elastic nonwoven fabric, elastic film, etc. Can be mentioned.
In the absorbent article according to another embodiment of the present disclosure, the inner sheet itself has elasticity, and may also serve as the upper elastic member and / or the lower elastic member. As an inner sheet | seat which has a stretching property, a stretchable fabric is mentioned, for example.

FIG. 10 is a view for explaining an absorbent article 1 according to another embodiment (third embodiment) of the present disclosure, and corresponds to FIG. In the absorbent article 1 according to the third embodiment, the inner sheet 23 (23a, 23b) is composed of a stretchable nonwoven fabric having stretchability in the waistline direction, and the upper end of the inner sheet 23 (23a, 23b). The edge (the edge on the waist opening 9 side) forms the upper elastic part 27 (27a, 27b), and the lower edge of the inner sheet 23 (23a, 23b) is the lower elastic part 29 ( 29a, 29b). By doing so, compared with the case where the upper elastic part and / or the lower elastic part includes an elastic member such as a thread-like rubber, the wearer's body is held by a surface rather than by a line, so that the wear feeling is excellent. Since the absorbent article 1 according to the third embodiment is the same as the absorbent article according to the first embodiment except for the upper and lower stretchable parts, the description thereof is omitted.

In the absorbent article 1 according to the first embodiment, the exterior body 4 includes a non-connecting portion 35a extending in the circumferential direction P, in which the lower stretchable portion 29a and the outer sheet 21a are not connected in the ventral side portion 5, In the absorbent article according to another embodiment of the present disclosure, the outer body, the outer sheet, and the inner sheet are in the thickness direction of the absorbent article. In the overlapping range, it has the connection part connected directly or indirectly.

FIG. 11 is a diagram for explaining an absorbent article 1 according to another embodiment (fourth embodiment) of the present disclosure, and corresponds to FIG. 7. In the exterior body 4 of the absorbent article 1 according to the fourth embodiment, the outer sheet 21 a of the abdominal side part 5 and the outer sheet 21 b of the back side part 6 exist in the waist area 15. Therefore, the outer sheet 21 a of the ventral side part 5 and the outer sheet 21 b of the back side part 6 are not connected in the crotch region 13.

In the absorbent article 1 according to the fourth embodiment, the exterior body 4 has a fixed portion within the range where the lower end region 22a of the outer sheet 21a overlaps with the inner sheet fixed portion 31a in the thickness direction T at the stomach side portion 5. 37a includes a connecting portion 36a that is connected to the inner sheet 23a with the intermediate sheet 25a and the lower elastic member 30a interposed therebetween.

Similarly, the exterior body 4 is configured such that the lower end region 22b of the outer sheet 21b is overlapped with the inner sheet fixing part 31b in the thickness direction T on the back side part 6 by the fixing part 37b. It has the connection part 36b connected with the inner side sheet | seat 23b on both sides of the side elastic member 30b.

By doing so, the lower end region 22 (22a, 22b) of the outer sheet 21 (21a, 21b) is less likely to be turned up when worn by the action of the connecting portion 36 (36a, 36b), and the absorbent article 1 is placed on the outer side. The sheet 21 (21a, 21b) is excellent in beauty.
In addition, since the absorbent article 1 according to the fourth embodiment is the same as the absorbent article according to the first embodiment except for the points described above, the description thereof is omitted.

In the above-described absorbent article, the exterior body and the lower stretchable part are connected to each other in a range where the absorbent body and the absorbent article overlap in the thickness direction. However, it is preferable that an outer sheet | seat and a lower side expansion-contraction part have a non-connecting part which is not connected within the absorber and the range which does not overlap in the thickness direction of an absorbent article. This is from the viewpoint of the effect of the present disclosure.

Further, in the absorbent article having the connecting portion in which the outer body is connected in a range where the outer sheet and the lower stretchable part overlap in the thickness direction of the absorbent article, the outer sheet, It is preferable that the outer sheet has an end edge opposite to the waistline opening fixed to the lower stretchable part. This is from the viewpoint of preventing the edge of the outer sheet from turning up. Further, the edge of the outer sheet may exist in the waist area and may exist in the crotch area.
As an example of an absorbent article, the exterior body described above has a connecting portion in which the outer sheet and the lower stretchable part are connected within a range where the absorbent body and the absorbent article overlap in the thickness direction. A so-called three-piece disposable diaper can be mentioned.

FIG. 12 is a view for explaining an absorbent article 1 according to another embodiment (fifth embodiment) of the present disclosure, and corresponds to FIG. 11. In the exterior body 4 of the absorbent article 1 according to the fifth embodiment, the outer sheet 21 a, the inner sheet 23 a, and the intermediate sheet 25 a are extended from the waistline region 15 to the crotch region 13 in the ventral side part 5. Similarly, in the absorbent article 1 according to the fifth embodiment, the outer sheet 21b, the inner sheet 23b, and the intermediate sheet 25b extend from the waistline region 15 to the crotch region 13 in the back side portion 6.

In the ventral part 5, the inner sheet 23 is composed of two sheets, an inner sheet 23a and an inner sheet 23a ′, and the inner sheet 23a and the inner sheet 23a ′ partially overlap each other. The overlapping portion is fixed with an adhesive (not shown). The inner sheet 23a is connected to the interior body 3 via the inner sheet fixing portion 31a. The inner sheet 23a ′ and the outer sheet 21a are composed of a single sheet, and the inner sheet 23a ′ is folded back from the outer sheet 21a at a waist opening (not shown). The lower end region 24a of the inner sheet 23a is fixed to the lower end region 26a of the intermediate sheet 25a by the fixing portion 39. The intermediate sheet 25a is a sheet independent of the outer sheet 21a, the inner sheet 23a, and the inner sheet 23a ′.

In the ventral side portion 5, the upper end region 26c and the lower end region 26a of the intermediate sheet 25a are fixed to the outer sheet 21a via the fixing portion 40 and the fixing portion 41, respectively. The outer sheet 21 a has a sheet 47 including a pattern that is fixed via a fixing part 42 in a region between the fixing part 40 and the fixing part 41. The fixing portion 40 and the fixing portion 41 that connect the intermediate sheet 25a and the outer sheet 21a are arranged in a range overlapping with the inner sheet fixing portion 31a in the thickness direction T. Accordingly, the exterior body 4 is indirectly (that is, the intermediate sheet 25a and the lower elastic member 30a are interposed in the range where the outer sheet 21a and the inner sheet 23a overlap the inner sheet fixing portion 31a in the thickness direction T). It has the connection part (namely, the fixing | fixed part 40 and the fixing | fixed part 41) connected on both sides.

In the back side portion 6, the inner sheet 23 is composed of two sheets, an inner sheet 23b and an inner sheet 23b ′, and the inner sheet 23b and the inner sheet 23b ′ partially overlap each other. The overlapping portion is fixed with an adhesive (not shown). The inner sheet 23b is connected to the interior body 3 via the inner sheet fixing portion 31b. The inner sheet 23b ′ and the outer sheet 21b are composed of a single sheet, and the inner sheet 23b ′ is folded from the outer sheet 21b at a waist opening (not shown). The lower end region 24b of the inner sheet 23b is fixed to the lower end region 22b of the outer sheet 21b by the fixing portion 43. The intermediate sheet 25b is a sheet independent of the outer sheet 21b, the inner sheet 23b, and the inner sheet 23b ′.

In the back side portion 6, the upper end region 26d and the lower end region 26b of the intermediate seat 25b are fixed to the outer seat 21a via the fixing portion 44 and the fixing portion 45, respectively. The outer sheet 21 a includes a sheet 48 including a pattern that is fixed via a fixing portion 46. The connecting portion 46 that connects the outer sheet 21b and the sheet 48 including the pattern is disposed in a range overlapping with the inner sheet fixing portion 31b in the thickness direction T. Accordingly, the exterior body 4 is indirectly (that is, the sheet 48 including the pattern, the fixing portion 45, the intermediate portion) in a range where the outer sheet 21b and the inner sheet 23b overlap with the inner sheet fixing portion 31b in the thickness direction T. It has the connection part (namely, fixing | fixed part 45) connected with the sheet | seat 25b and the lower elastic member 30b pinched | interposed. In addition, the fixing | fixed part 44 which connects the intermediate | middle sheet | seat 25b and the outer side sheet | seat 21b is not arrange | positioned in the range which overlaps with the inner side sheet | seat fixing | fixed part 31b in the direction of the thickness direction T.
In addition, since the absorbent article 1 according to the fifth embodiment is the same as the absorbent article according to the fourth embodiment except for the points described above, the description thereof is omitted.

The exterior body 4 of the absorbent article 1 according to the first embodiment extends in the circumferential direction P in which the lower stretchable part 29 and the outer sheet 21 are not connected to the entire abdominal side part 5 and the entire back side part 6. Although the exterior body of the absorbent article of the present disclosure has the non-connection portion 35, the lower stretchable portion and the outer sheet have a non-connection portion that is not connected to at least a part of the waistline region. be able to. This is because the effect of the present disclosure can be exhibited in the unconnected portion if the unconnected portion can be provided in at least a part of the waistline region.

It is preferable that the non-connecting portion is disposed on both sides of the waist circumference region of the exterior body, for example, on both sides of the ventral side and both sides of the back side. In an absorbent article, since there is generally no interior body, particularly an absorbent body, on both sides of the waistline region, the lower stretchable part is connected to the outer sheet on both sides of the absorbent article. Then, the wrinkles tend to be easily formed on the outer sheet. Therefore, the outer package of the absorbent article has the non-connecting portions on both sides of the waistline region, so that wrinkles are hardly formed on the outer sheet on both sides of the waistline region. Excellent flexibility in appearance design.

In the exterior body of the absorbent article of the present disclosure, it is preferable that the non-connecting portion is disposed in the entire region of the waistline region. This is because wrinkles are hardly formed on the outer sheet in the entire waist region, and the absorbent article is excellent in the degree of freedom in designing the appearance.

In 1st Embodiment, although the interior body 3 is being fixed to the lower expansion-contraction part 29 of the inner sheet 23 via the inner sheet fixing | fixed part 31, in the absorbent article of this indication, an interior body is an inner sheet | seat. As long as it is fixed to the lower stretchable part. This is from the viewpoint of the effect of the present disclosure.

In the absorbent article of the present disclosure, as in the absorbent article 1 according to the first embodiment, the lower stretchable part in a range where the lower stretchable part and the absorbent body overlap in the thickness direction of the absorbent article. It is preferable that the contraction force is weaker than the contraction force of the lower stretchable part in a range where the lower stretchable part and the absorbent body do not overlap in the thickness direction of the absorbent article. This is because the absorbent body is less likely to be compressed in the planar direction, the absorbent article is excellent in its appearance, and the liquid to be absorbed is difficult to leak.

In the absorbent article of the present disclosure, the lower stretchable part may not substantially have a contracting force in a range overlapping with the absorbent body in the thickness direction of the absorbent article. This is from the viewpoint of preventing the absorber from being compressed and twisted in the planar direction.
In the range in which the lower elastic part overlaps with the absorbent body in the thickness direction of the absorbent article, the embodiment having a substantially contractive force absorbs, for example, the lower elastic member constituting the lower elastic part. Cutting at any point within the range that overlaps the body.

In the absorbent article of the present disclosure, like the absorbent article 1 according to the first embodiment, the absorbent article preferably has an outer sheet fixing portion that fixes the inner body to the outer sheet of the outer body. This is because, during use, the interior body, in particular, the absorbent body is less likely to sway and the absorbed liquid is less likely to leak.

Further, in the embodiment in which the absorbent article has an outer sheet fixing portion that fixes the inner body to the outer sheet of the outer body, the inner sheet fixing portion and the outer sheet fixing portion are separated from each other in the ventral side portion. And more preferably 2%, more preferably 3% or more, and even more preferably 5% or more of the length of the crotch region in the length direction. By doing so, the inner sheet and the outer sheet are less affected by each other, the outer sheet is less affected by the inner sheet, excellent in aesthetics, and the lower elastic part of the inner sheet is It is hard to be affected and can exert an expansion / contraction function.

Further, in an embodiment in which the absorbent article has an outer sheet fixing portion that fixes the inner body to the outer sheet of the outer body, the inner sheet fixing portion and the outer sheet fixing portion are provided in the crotch region at the ventral side portion. The length in the length direction is preferably 20% or less, more preferably 15% or less, and even more preferably 10% or less. By doing so, the interior body can be firmly fixed to the outer sheet, and twisting of the interior body, particularly the absorber can be prevented.

In the embodiment in which the absorbent article has an outer sheet fixing portion that fixes the inner body to the outer sheet of the outer body, the inner sheet fixing portion and the outer sheet fixing portion are separated from each other on the back side portion. And more preferably 5%, more preferably 10% or more, and even more preferably 15% or more of the length of the crotch region in the length direction. By doing so, the inner sheet and the outer sheet are less affected by each other, the outer sheet is less affected by the inner sheet, excellent in aesthetics, and the lower elastic part of the inner sheet is It is hard to be affected and can exert an expansion / contraction function. In addition, since the outer sheet of the back side is generally larger in area than the outer sheet of the abdomen and is less susceptible to the movement of the wearer's legs, it has an effect on the aesthetics of the absorbent article. Is big.

Further, in the embodiment in which the absorbent article has an outer sheet fixing portion that fixes the inner body to the outer sheet of the outer body, the inner sheet fixing portion and the outer sheet fixing portion are arranged in the crotch region at the back side portion. The length in the length direction is preferably 30% or less, more preferably 26% or less, and even more preferably 23% or less. By doing so, the interior body can be firmly fixed to the outer sheet, and twisting of the interior body, particularly the absorber can be prevented.
In the present specification, the degree of separation is evaluated in a state where the interior body is taken out from the absorbent article and left in a natural state for 24 hours in a constant temperature room at 20 ° C.

In the absorbent article of the present disclosure, like the absorbent article 1 according to the first embodiment, the lower stretchable portion of the outer sheet and the portion overlapping in the thickness direction of the absorbent article are more than the lower stretchable portion. It is preferable that it does not shrink easily. This is because, as compared with the case where the overlapping portion is fixed to the lower stretchable portion, the wrinkles of the outer sheet are reduced, and the absorbent article is excellent in its appearance.

In the absorbent article of the present disclosure, the outer sheet can have a pattern. In the absorbent article of the present disclosure, the outer sheet is less likely to have wrinkles associated with the shrinkage of the lower stretchable part, and is excellent in the degree of freedom in designing the appearance, and thus the pattern of the outer sheet is easily recognized.
Examples of the outer sheet having a pattern include an embodiment in which the outer sheet itself has a pattern, an embodiment in which a sheet having a pattern is attached to the outside of the outer sheet, and a sheet having a pattern in the inner side of the outer sheet. Embodiment which has been mentioned.

In the outer package of the absorbent article of the present disclosure, the inner sheet, the outer sheet, and the optional intermediate sheet may be composed of a single sheet or may be composed of different sheets. Each of the inner sheet, the outer sheet, and the desired intermediate sheet may be composed of a plurality of sheets.
The inner sheet, outer sheet, and optional intermediate sheet are not particularly limited, and include fabrics such as non-woven fabric (for example, non-stretchable non-woven fabric), woven fabric, knitted fabric, and film.

The absorbent article of the present disclosure can be produced by a person skilled in the art who refers to the absorbent article of the present disclosure by combining methods known in the art. For example, the absorbent article of the present disclosure is Can be produced as follows.

Drawing 13 is a figure for explaining an example of a manufacturing method of an absorptive article of this indication.
An elastic member 203 (203a, 203b) on which a lower elastic member is to be formed, in which an adhesive is applied to the belt-like sheet 201 while the belt-like sheet 201 long in the carrying direction MD is being carried in the carrying direction MD. Paste in the stretched state. Next, a part 225a to be formed with the intermediate sheet and a part 225b to be formed with the intermediate sheet, which are both ends in the width direction CD, of the belt-like sheet 201 are respectively set on the inner sides with folding axes F _1a and F _1b . By folding the sheet 223 over the portion 223a where the sheet is to be formed and the portion 223b where the inner sheet is to be formed, a belt-like sheet 201 which is folded twice in total is formed. The leg-around elastic member is appropriately disposed before and after the elastic member 203 (203a, 203b) to form the lower elastic member is disposed together with the auxiliary sheet. The two folding axes F _1a and F _1b are parallel to the transport direction MD. The lower elastic member constitutes a lower elastic part.

An elastic member 205 (205a, 205b) to be coated with an adhesive and to form an upper elastic member is pasted in a stretched state on the strip-like sheet 201 folded in total. Next, a part 223a to be formed with the inner sheet and a part 223b to be formed with the inner sheet, which are both ends in the width direction CD, of the belt-like sheet 201 folded twice in total are respectively set to the folding axis F _2a. And F _2b , the belt-like sheet 201 folded in total 4 times is formed by folding on the part 221a to form the outer sheet and the part 221b to form the outer sheet. Next, a joint body (not shown) of the exterior body is formed by hollowing out the pair of leg-hole openings 211 (211a, 211b) from the belt-like sheet 201 folded in total four times. The two folding axes F _2a and F _2b are parallel to the transport direction MD. The upper elastic member constitutes an upper elastic part.

An interior provided with an inner sheet fixing part (not shown) and an outer sheet fixing part (not shown) on the outer surface of each outer body (not shown) of a connecting body (not shown) of the outer body. A body (not shown) is disposed, and then an interior body end portion protection sheet is disposed at each of the longitudinal ends of the interior body to form an absorbent article connection body (not illustrated). Coupled body of the absorbent article (not shown), a substantially center in the width direction CD, folded in Orijiku F ₃ extending along the conveyance direction MD. Subsequently, in each absorbent article of the joined body (not shown) of the folded absorbent article, a pair of joints are formed by joining the abdomen and the back part, and the individual absorbents are formed. The absorbent article of the present disclosure is manufactured by cutting out the article.

The absorbent article of the present disclosure is not particularly limited as long as it is a pants type, and examples include pants-type disposable diapers, such as children's training pants, adult disposable diapers, and disposable shorts.

DESCRIPTION OF SYMBOLS 1 Absorbent article 3 Inner body 3a, 3b Longitudinal edge 4 Exterior body 5 Abdomen side part 6 Back side part 7, 7a, 7b Joint part 9 Trunk circumference opening part 11, 11a, 11b Leg circumference opening part 13 Crotch area 15 Trunk circumference area 17 Absorber 17a, 17b Longitudinal edges 21, 21a, 21b Outer sheet 22, 22a, 22b Lower end area 23, 23a, 23b Inner sheet 24, 24a, 24b Lower end area 25, 25a, 25b Intermediate sheet 26a, 26b Lower end region 26c, 26d Upper end region 27, 27a, 27b Upper elastic member 28, 28a, 28b Upper elastic member 29, 29a, 29b Lower elastic member 30, 30a, 30b Lower elastic member 31, 31a, 31b Inner sheet fixing Part 33 Outer sheet fixing part 35, 35a, 35b Unconnected part 36, 36a, 3 b connecting portions 37, 37a, the sheet L length direction P circumferentially T thickness direction including a 37b fixed portion 39,40,41,42,43,44,45,46 fixing units 47 and 48 patterns

Claims (12)

1. A pants-type absorbent article comprising an interior body having an absorbent body and an exterior body having a trunk periphery opening and a pair of leg periphery openings, and having a length direction, a peripheral direction, and a thickness direction,
   The absorbent article is partitioned into a crotch region between the pair of leg periphery openings, and a waist region adjacent to the upper side in the height direction of the crotch region and making a round in the circumferential direction,
   The exterior body includes an outer sheet that extends downward in the length direction from the waistline opening and is disposed in the waistline region, and an inner sheet that is disposed on the inner side of the outer sheet,
   The inner sheet includes an upper stretchable portion extending in the circumferential direction, and a lower stretchable portion disposed on the lower side in the length direction than the upper stretchable portion,
   The exterior body has a non-connecting portion in which the lower stretchable portion and the outer sheet are not connected,
   The absorbent article has a pair of inner sheet fixing portions that fix the front and rear ends of the interior body to the inner sheet of the exterior body,
   The said absorbent article characterized by the above-mentioned.
2. The absorbent article has a pair of joint portions joining the abdominal side portion and the back side portion between the abdominal side portion and the back side portion, and the trunk periphery opening portion and the pair of leg periphery opening portions. The absorptive article according to claim 1 which has.
3. The inner sheet has at least the lower stretchable part within a range included in both side portions and the ventral side portion and the back side portion of the absorbent article, and the exterior body is within the range, The absorptive article according to claim 2 containing said non-connection part prolonged in a direction.
4. The exterior body has a connecting portion in which the outer sheet and the inner sheet are directly or indirectly connected to the pair of inner sheet fixing portions in a range overlapping with the thickness direction. The absorbent article according to any one of items 1 to 3.
5. The absorptive article according to claim 2 or 3 in which said inner sheet is not joined to said outer sheet except said upper elastic part in said abdominal part and back part.
6. The absorbent body according to any one of claims 1 to 5, wherein the absorber of the interior body is fixed to the lower elastic part of the inner sheet by the pair of inner sheet fixing parts in the waistline region. The absorbent article as described.
7. In the range where the lower stretchable part and the absorber overlap in the thickness direction, the contraction force of the lower stretchable part is such that the lower stretchable part and the absorber are in the thickness direction. The absorptive article according to claim 6 which is weaker than the contraction force of said lower elastic part in the range which does not overlap with.
8. 8. The absorbent article according to claim 1, wherein the absorbent article is provided with the inner body such that at least one end portion in the longitudinal direction of the inner body is present inside the inner sheet of the outer package. The absorbent article as described in any one.
9. The absorbent article is provided with the interior body such that at least one end in the longitudinal direction of the interior body is disposed between the outer sheet and the inner sheet of the exterior body. The absorbent article according to any one of 1 to 8.
10. The absorbent article has an outer sheet fixing part that fixes the inner body to the outer sheet, and each of the pair of inner sheet fixing parts and the outer sheet fixing part are spaced apart from each other. The absorbent article according to any one of 1 to 9.
11. The absorbent article according to any one of claims 1 to 10, wherein a portion of the outer sheet that overlaps with the lower stretchable portion in the thickness direction is less likely to shrink than the lower stretchable portion.
12. The absorbent article according to any one of claims 1 to 11, wherein the outer sheet has a pattern.

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