JP2015226706A - Absorbent article, and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorbent article capable of more effectively avoiding contact between excreted body fluid and the skin of a wearer.SOLUTION: An absorbent article is constituted of two modules of a body contact part and a body non-contact part. The absorbent article is such that: the body contact part has a canal member having a pair of right and left head parts, and a canal sheet forming a bottom in the central vicinity and forming side surfaces at both right and left sides, and a fixation member; the body non-contact part has a leakage prevention body and an absorber; a passage for transferring body fluid from the upper side of the canal sheet to the surface of the absorber; at least in a crotch part, part of the lower side of the bottom of the canal sheet, and part of the surface of the absorber or part of the upper surface of the leakage prevention body are connected in a bottom surface connection part; and at least in the crotch part, part of the outside of the side surfaces of both right and left sides of the canal sheet, and the right and left side edge parts of the leakage prevention body are connected in a side edge connection part.

Description

  The present invention relates to an absorbent article and a method for manufacturing the same.

  Absorbent articles include diapers (diapers for children and adults), sanitary napkins, incontinence measures products, body fluids discharged from wearers such as training pants, and superabsorbent resin (hereinafter also referred to as “SAP”). It is an article that is absorbed and processed by an absorber using fluffed wood pulp or the like.

In conventional absorbent articles, body fluid is discharged directly from the wearer's discharger onto the surface of the absorber, and is absorbed into the absorber by diffusion on the surface of the absorber and migration from the surface of the absorber to the interior. And processed.
Therefore, in order to prevent leakage of body fluid from the absorbent article to the outside thereof, the surface of the absorbent body and the skin of the wearer, so as not to cause a gap between the absorbent article and the wearer's body, In particular, it was necessary to bring the ejector into close contact.
However, when the absorbent article is used in such a state, after the body fluid is discharged, the wearer's skin is in close contact with the surface of the absorbent body wet with the body fluid. If the wearer's skin is in contact with body fluids for a long time, it not only is uncomfortable for the wearer, but also causes the skin to swell and cause bacterial growth, causing rashes and inflammation. There was a problem of becoming.

As a new proposal for solving such problems of the conventional absorbent article, the present inventor has applied body fluid to the absorbent body, in particular, to the crotch portion (the crotch part) that is a position corresponding to the excretor of the wearer. In order not to transfer directly, the body fluid that has been discharged and the wearer are newly introduced between the surface of the absorbent body and the wearer's skin by introducing a unit that enables the movement and distribution of body fluids before and after the absorbent body. Proposed a method to effectively avoid contact with the skin.
In Patent Document 1, the unit is proposed as a floating leg gather (FLG). In Patent Document 2, the unit is proposed as a body fluid movement path. In Patent Document 3, the unit is proposed as a body fluid receiving canal. Each of the units according to these proposals is coupled to a pair of left and right heads and a pair of left and right heads, and has a hanging part that hangs down, and only the pair of left and right heads contact the skin of the wearer. Is common.

Japanese Patent No. 5086492 Japanese Patent No. 5236121 Japanese Patent No. 5236122

  The present inventor has advanced research on absorbent articles having various units described in Patent Documents 1 to 3, and the three-dimensional structure of the unit is more stably present when worn, and thus the discharged body fluid. I thought that contact with the wearer's skin could be more effectively avoided.

  The present inventor modularized the absorbent article into two main components, a “body contact part” that does not have an absorber and a “body non-contact part” that has an absorber. The three-dimensional structure can exist more stably, and as a result, the contact between the discharged body fluid and the wearer's skin can be avoided more effectively, the structure can be simplified, and at the same time the manufacturing process can be greatly improved. The present invention has been completed by finding that it can be simplified.

That is, the present invention provides the following (1) to (40).
(1) An absorbent article composed of two modules, a body contact part and a body non-contact part,
The body contact part is
A pair of left and right heads extending in the front-rear direction and having at least a part of elasticity, and both left and right edges are coupled to the pair of left and right heads, and the center part hangs downward in a convex shape when worn, A canal member having a bottom surface in the vicinity and a canal sheet forming side surfaces on the left and right sides;
A fixing member for fixing the canal member to the wearer's body so that the head of the canal member contacts the wearer's skin when worn;
The body non-contact part is
A sheet-like leak preventer that prevents leakage of bodily fluids;
An absorber capable of absorbing bodily fluids disposed on the upper side of the leak preventer,
A passage for transferring body fluid from the upper side of the canal sheet to the surface of the absorber is provided,
At least in the crotch part, a part of the lower side of the bottom surface of the canal sheet and a part of the surface of the absorber or a part of the upper surface of the leak preventer are coupled by a bottom surface coupling part,
At least in the crotch, a part of the outside of the side surface on both the left and right sides of the canal sheet and the left and right side edges of the leak preventer are joined by a side edge joint,
When the wearer discharges bodily fluid, the discharged bodily fluid is received on the upper side of the canal sheet, and then transferred from the upper side of the canal sheet to the surface of the absorber through the passage while moving in the front-rear direction. Absorbent article.
(2) The absorbent article according to (1), wherein the bottom surface coupling portion extends in the front-rear direction in a band shape in a region including the crotch portion.
(3) The absorbent article according to (1) or (2), wherein the side edge coupling portion extends in a front-rear direction in a band shape in a region including a crotch portion.
(4) The absorbent article according to (1) or (2), wherein the side edge coupling portion is present in a spot shape over substantially the entire right and left side edges of the leak preventer.
(5) The absorbent body according to any one of (1) to (4), wherein an outer surface of the canal sheet and a front end portion of the leak preventer are joined at a front end joint portion extending in a left-right direction. Goods.
(6) The front end portion of the leak preventer is folded back so as to cover a part of the upper surface of the absorber, and the overlapping portions of the leak preventers on the left and right side edges of the folded portion are combined, The absorbent body according to (5) above, wherein a front pocket portion is formed at a front portion of the body non-contact part, and an upper surface of the folded portion of the leak preventer and an outer surface of the canal sheet are coupled by a front end joint portion. Goods.
(7) The outer surface of the canal sheet and the rear end portion of the leak preventer are joined at a rear end joint portion extending in the left-right direction, according to any one of the above (1) to (6). Absorbent article.
(8) The rear end portion of the leak preventer is folded forward so as to cover a part of the upper surface of the absorber, and the overlapping portions of the leak preventers on the left and right side edges of the folded portion are combined, The absorption according to (7), wherein a rear pocket portion is formed at a rear portion of the body non-contact part, and an upper surface of the folded portion of the leak preventer is joined to an outer surface of the canal sheet by a rear end joint portion. Body article.
(9) The absorbent article according to any one of (1) to (8), wherein the fixing member includes a front covering portion that covers the front body and a rear covering portion that covers the back body.
(10) The absorbent article according to (9), further including a detachable member that detachably couples the front covering portion and the rear covering portion.
(11) The absorbent article according to (9), wherein the front covering portion and the rear covering portion are integrated to cover the periphery of the wearer's abdomen when worn.
(12) Any of the above (9) to (11), wherein the lower surface of the front covering portion and the front end portion of the leak preventer are coupled by a body non-contact part-front end coupling portion extending in the left-right direction. An absorbent article according to any one of the above.
(13) The absorption according to (12), wherein a front portion of the absorber is covered with a lower surface of the front covering portion, and a front pocket portion is provided between the upper surface of the absorber and the lower surface of the front covering portion. Body article.
(14) The front end portion of the leak preventer is folded back so as to cover a part of the upper surface of the absorber, and the overlapping portions of the leak preventers on the right and left side edges of the folded portion are combined, The absorbent article according to (13), wherein a pocket is formed at a front portion of the body non-contact part, and an upper surface of the folded portion of the leak preventer is joined to a lower surface of the front covering portion at a front end joint portion. .
(15) The above (9) to (14), wherein the lower surface of the rear covering portion and the rear end portion of the leak preventer are coupled by a body non-contact part-rear end coupling portion extending in the left-right direction. The absorbent article according to any one of the above.
(16) The rear portion of the absorber is covered with the lower surface of the rear covering portion, and the rear pocket portion is provided between the upper surface of the absorber and the lower surface of the rear covering portion. The absorbent article according to any one of the above.
(17) The rear end portion of the leak preventer is folded forward so as to cover a part of the upper surface of the absorber, and the overlapping portions of the leak preventers on the left and right side edges of the folded portion are joined, The absorbent body according to (16), wherein a pocket is formed behind the body non-contact part, and the upper surface of the folded portion of the leak preventer and the lower surface of the rear covering portion are coupled by a rear end coupling portion. Goods.
(18) The lateral width of the leak preventer is wider than the lateral width of the canal sheet, whereby a gap exists between the canal sheet and the surface of the absorber. The absorbent article according to any one of to (11).
(19) By expanding the width of the left and right side edges of the leak preventer having no absorber on the upper side to form a wide side edge, and providing the side edge coupling portion there, the canal sheet and the absorber The absorbent article according to (18), wherein a void is present between the surface and the surface.
(20) The left and right wide side edge portions are folded back so that the left and right sides face each other from the left and right toward the center in the width direction so as to cover a part of the upper surface of the absorber. In the above (19), the overlapping portion of the leaking body is joined, and the side edge coupling portion is provided on the upper surface of the folded side edge portion so that a gap exists between the canal sheet and the surface of the absorber. The absorbent article as described.
(21) The left and right wide side edge portions are folded back so that the left and right sides are opposed from the left and right toward the center in the width direction so as to cover the entire surface in the left and right direction of the absorber, and the center portion is opened. The left and right pocket portions are formed, and the side edge coupling portion is provided on the upper surface of the folded side edge portion, thereby allowing a gap to exist between the canal sheet and the surface of the absorber, (19) The absorbent article according to 1.
(22) The absorbent article according to any one of (1) to (21), wherein at least a part of the canal sheet is liquid-impermeable.
(23) The absorbent article according to any one of (1) to (22), wherein at least a part of the fixing member is liquid-impermeable.
(24) The absorbent article according to any one of (1) to (23), wherein the passage is provided at least at a part of a bottom surface of the canal sheet.
(25) The absorbent article according to any one of (1) to (24), wherein the passage is provided at least in part of the left and right side surfaces of the canal sheet.
(26) The absorbent article according to any one of (1) to (25), wherein the passage is provided to extend at least from the bottom surface of the canal sheet to the left and right side surfaces.
(27) On the leak preventer, there are a portion where the absorber is present and a portion where the absorber is not present and the surface of the leak preventer is exposed. The absorbent article according to any one of 26).
(28) There is a portion where the absorber does not exist and the surface of the leak preventer is exposed at a central portion in the left-right direction on the leak preventer, and a portion where the absorber exists on the left and right The absorbent article according to (27) above.
(29) There is a portion where the absorber does not exist and the surface of the leak preventer is exposed at a central portion in the front-rear direction on the leak preventer, and a portion where the absorber exists before and after the absorber. The absorbent article according to (27) above.
(30) The absorbent article according to any one of (1) to (29), wherein the absorbent body has a thick portion and a thin portion.
(31) The absorbent article according to (30), wherein the absorbent body has a thick portion and a thin portion in the left-right direction.
(32) The absorbent article according to (31), wherein the absorbent body has a thin portion at a central portion in the left-right direction and has thick portions on the left and right.
(33) The absorbent article according to (30), wherein the absorber has a thick part and a thin part in the front-rear direction.
(34) The absorbent article according to (33), wherein the absorbent body has a thin portion at a central portion in the front-rear direction and a thick portion before and after the thin portion.
(35) The absorbent article according to any one of (1) to (34), wherein the absorbent is a sheet-shaped absorbent containing 50% by mass or more of a superabsorbent resin.
(36) The absorbent article according to (35), wherein in the left-right direction, a portion where the absorber exists and a portion where the absorber does not exist alternately exist.
(37) The absorbent article according to (35), wherein in the front-rear direction, a portion where the absorber exists and a portion where the absorber does not exist alternately exist.
(38) The absorbent article according to any one of the above (1) to (37), wherein the left and right edge portions of the leak preventer have an expansion / contraction member that acts to reduce the length in the front-rear direction.
(39) The absorbent article according to any one of (1) to (38), wherein when the leak preventer is worn, at least in the crotch, the leak preventer has a convex shape on the lower side.
(40) A method for producing an absorbent article for producing the absorbent article according to any one of (1) to (39) above,
Forming each of the body contact part and the body non-contact part;
Then, the manufacturing method of an absorbent article which has the process of couple | bonding the said body contact part and the said body non-contact part.

  The absorbent article of the present invention can effectively avoid contact between the discharged body fluid and the skin of the wearer.

It is a schematic diagram which shows the example of the embodiment of the absorber article | item of this invention. It is a schematic diagram which shows the example of the S part in the absorber article | item of this invention which is an aspect of a tape-type diaper. It is explanatory drawing which demonstrated typically the construction method of S part for the underpants type diaper. It is a schematic diagram which shows various R parts. It is a schematic diagram which shows various R parts. It is a schematic diagram which shows various R parts. It is a schematic diagram which shows various R parts. It is a schematic diagram which shows various R parts. It is a schematic diagram which shows various R parts. It is a typical horizontal end view in the crotch part C which shows the absorbent article of various this invention. It is a schematic diagram which shows another example of the embodiment of the absorber article | item of this invention. It is a schematic diagram which shows another example of the embodiment of the absorbent article of the present invention.

10, 10a, 10b, 10c, 10d, 10e Head 12, 12a, 12b, 12c, 12d, 12e Canal sheet 14, 14a, 14b, 14c, 14d, 14e Canal member 16, 16a Covering part 17, 17a, 17b, 17c, 17d Front covering portion 18 Covering portion joint portion 19, 19a, 19b, 19c, 19d Rear covering portion 20, 20a Detachable member 22, 22a, 22b, 22c, 22d, 22e, 22f Leak preventers 24, 24a, 24b, 24c, 24d, 24e, 24f, 24g, 24h, 24i, 24j, 24k, 24l, 24m Absorber 26, 26a, 26b, 26c, 26d, 26e Side edge joint portion 28 Front end joint portion 30 Rear end joint portion 32, 32a , 32b, 32c, 32d, 32e Bottom connection part 34 Canal bottom part 36 Canal Left side part 38 Canal right side part 40, 40a, 40b, 40c, 40d Surface sheet 42 Press line 44, 44a Left and right pocket parts 46, 52, 54 Opening 48, 48a Front pocket part 50, 50a Rear pocket part 56 Elastic member 58 Diffusion sheet 60, 60a Canal part-front end coupling part 62, 62a Canal part-rear end coupling part 64, 64a Body non-contact part (R part) -front end coupling part 66, 66a Body non-contact part (R part) -rear end coupling part 68 Waist gather 70 Shirring gather 100, 100a, 100b, 100c, 101, 102 Absorbent article C Inseam F Front body R Rear body RP Body non-contact part S Air gap SP Body contact part Z, Z 'Waist seal part

Hereinafter, an absorbent article according to the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings. In the present specification, when the absorbent article of the present invention is actually worn, the side closer to the wearer's skin is referred to as “upper” and the far side is referred to as “lower”. Further, when the absorbent article of the present invention is actually worn, the side corresponding to the front side of the wearer's body is referred to as “front”, and the side corresponding to the rear side is referred to as “rear”. Moreover, in order to make an understanding easy in each figure, the member which is actually contacting may be shown spaced apart. In each plan view in the attached drawings, the front side of the absorbent article or the like is shown on the left side of the figure.
Further, in this specification, “module” means “a part that constitutes a system of products, manufacturing processes, mechanical devices, etc. and is a functionally integrated part”, and “body contact part” means a canal. It is a module that uses a member and a fixing member as its constituent elements, and exerts a function by contacting the surface of the wearer's skin when the absorbent article is worn. The “body non-contact part” is a module that has a leak preventer and an absorber as its constituent elements and exhibits a function without contacting the surface of the wearer's skin when the absorbent article is worn. The “body contact part” (“Skin-contact Part”) is also referred to as “S part”. “Body non-contact part” (“Remote Part”) is also referred to as “R part”.
Furthermore, in this specification, the “surface of the absorber” means the surface of the absorber when it is exposed, and the absorber is also referred to as a diffusion sheet, an acquisition sheet, or a surface sheet (also called a top sheet). ), When coated with a core wrap sheet or the like, it means the surface of the diffusion sheet, acquisition sheet, surface sheet, core wrap sheet, or the like that is coated.
Further, in this specification, the “surface of the leak preventer” means the surface of the leak preventer when it is exposed, and the leak preventer is covered with a surface sheet, a core wrap sheet, or the like. If it is, it means the surface of the covering surface sheet, core wrap sheet or the like.

FIG. 1 is a schematic diagram illustrating an example of an embodiment of an absorbent article according to the present invention. Specifically, FIG. 1 has an S part (SP) and an R part (RP), and the S part is joined and integrated with the R part at the bottom of the S part and part of the side edge. It shows a children's tape-type diaper.
FIG. 1 (A) is a plan view schematically showing a state (tensed state) in which a stress is applied to an absorbent article which is an aspect of a tape-type diaper and pulled in the front-rear direction and the left-right direction to be substantially flat. FIG. FIG. 1B is a lateral end view along the line IB-IB in FIG. 1A in the above state. FIG. 1C is a lateral end view taken along the line IB-IB in FIG. 1A when stress is not applied to the absorbent article (in a relaxed state). In the following description, the material of each member is an example.
The absorbent article 100 of the present invention shown in FIG. 1 is configured as a tape-type diaper, and basically extends in the front-rear direction and has a pair of left and right heads 10 having stretchability at least in part, A canal having left and right edges coupled to a pair of left and right heads 10, a center portion hanging downwardly in a convex shape when worn, a bottom surface formed near the center, and a canal sheet 12 forming side surfaces on both left and right sides An S part having a member 14 and a fixing member that fixes the canal member 14 to the wearer's body so that the head 10 of the canal member 14 contacts the wearer's skin when worn; A sheet-like leak preventer 22 and an R part having an absorber 24 that can absorb bodily fluids disposed above the leak preventer 22.

In the absorbent article 100 shown in FIG. 1 (A), a canal member 14 is provided in the center on a pair of left and right covering portions 16 made of a nonwoven fabric (liquid impermeable PP SMS nonwoven fabric, basis weight 15 g / m ² ). The S part is configured by joining at the covering part joining part 18. The front covering portion 17 serving as a fixing member to the body constituting the S part is composed of left and right nonwoven fabrics and a front end portion of the canal member 14. Similarly, the rear covering portion 19 serving as a fixing member is composed of left and right nonwoven fabrics and rear end portions of the canal member, and is provided with detachable members 20 on both edges thereof. Thus, it is one of the preferable aspects of the present invention that the fixing member has the front covering portion that covers the front body and the rear covering portion that covers the rear body. Moreover, in that case, it is one of the preferable embodiments of the present invention to have a detachable member that detachably couples the front covering portion and the rear covering portion. Furthermore, it is one of the preferable embodiments of the present invention that at least a part of the fixing member is liquid-impermeable.
The canal member 14 has a pair of elastic left and right heads (two 780 dtex polyurethane filaments arranged in parallel and covered with the same non-woven fabric as a canal sheet described later) 10 and a pair of left and right heads 10. And a canal sheet (PP / PE spunbond nonwoven fabric whose surface is hydrophilized) 12 that joins both left and right edges to form a central portion, and the bottom surface of the canal sheet 12 (FIG. 1C) As shown, since the canal sheet 12 has a shape that hangs down in a convex shape, the R part is joined to the outer surface.
In a preferred embodiment of the present invention, at least a part of the canal sheet is liquid-impermeable.

The R part consists of a sheet-like leak preventer (a laminate of 13 g / m ² PP non-woven fabric made of PP on a breathable 15 μm PE film) and an absorber (a 40 mm wide SAP) disposed on the upper side thereof. / Pulp mixed sheet with core wrap sheet covered with tissue paper and placed on the left and right with a 15mm gap in the center (leak preventer is exposed in the center)) It consists of and.
In the present invention, it is one of the preferred embodiments that a portion where the absorber exists and a portion where the absorber does not exist and the surface of the leak preventer is exposed are present on the leak preventer. . In this case, it is preferable that there is a portion where the absorber is not present at the central portion in the left-right direction on the leak preventer and the surface of the leak preventer is exposed, and there is a portion where the absorber exists on the left and right. This is one of the embodiments (see FIGS. 4E and 4F), and there is no absorber in the front-rear central portion of the leak preventer, and the surface of the leak preventer is exposed. It is also a preferred embodiment that there is a portion where an absorber exists before and after that portion (see FIGS. 4C and 4D).

The lower surface of the canal sheet 12 of the S part and the leak preventer 22 of the R part are arranged in the left-right direction by the side edge joint portion 26 at the left and right side edges, and the front and rear end joint portions 28 and 30 at the front and rear ends. The central portions are respectively coupled by the bottom surface coupling portion 32.
The front end joint portion 28 and the rear end joint portion 30 are sealed in a strip shape over the entire length in the left-right direction. In the present invention, as in this embodiment, it is one of the preferred embodiments that the outer surface of the canal sheet and the front end portion of the leak preventer are joined by a front end joint portion extending in the left-right direction. In one preferred embodiment, the outer surface of the canal sheet and the rear end portion of the leak preventer are joined by a rear end joint portion extending in the left-right direction.
The side edge coupling portion 26 is long at the crotch C, short at the front body F and the back body R, and exists as a partial linear portion connected to the front end and the rear end at the front and rear portions, and does not restrain the movement of the canal seat. Has been. In the present invention, the aspect of the side edge joint portion is not limited to this, and the aspect in which the side edge joint portion extends in the front-rear direction in a band shape in the region including the crotch portion, and the side edge joint portion is leak-proof. A mode in which a spot exists over almost the entire edge of the left and right side edges of the body is also preferably used.
The bottom surface coupling portion 32 extends back and forth in a strip shape on the exposed portion of the leak preventer 22 in the crotch portion C at the center in the left-right direction. In the present invention, as in this aspect, it is preferable that the bottom surface coupling portion extends in the front-rear direction in a band shape in the region including the crotch portion.

  As shown in the lateral end view of the crotch part C in FIG. 1B, the canal member 14 including the canal sheet 12 and the stretchable head 10 has a leak preventer 22 and an absorber 24 on its lower surface. The R part is joined and integrated. That is, the left and right outer surfaces of the canal sheet 12 and the left and right side edges of the leak preventer are side edge coupling portions 26, and the center portion in the left and right direction of the canal sheet 12 and the exposed portion at the center of the leak preventer 22 are the bottom surfaces. It is joined at the coupling portion 32. In this example, when the arrangement of the S part and the R part in the front-rear direction is seen, the canal sheet 12 of the S part is arranged over the entire length of the absorbent article 100, and the front and rear parts are used as a part of the covering part. On the other hand, the leak preventer 22 of the R part is disposed shorter than the canal seat 12 in the front-rear direction.

FIG. 1 (C) is a lateral end view when FIG. 1 (B) is relaxed, and in particular, the joining state of the canal member 14 and the R part is shown three-dimensionally.
The canal sheet 12 hangs down in the center when the tension is relaxed, and in particular, the depth of the canal becomes large at the crotch part C and exhibits a U-shaped solid shape. In the crotch portion C, the left and right outer surfaces of the canal sheet 12 and the left and right side edges of the leak preventer 22 are coupled by the side edge coupling portion 26, and the canal sheet 12 is absorbed by the absorber 24 held by the leak preventer 22. As a result, the outer surface of the material is physically reinforced, which contributes to stabilization of the U-shaped solid shape. The bottom surface of the center portion of the bottom surface of the canal sheet 12 in the left-right direction and the top surface of the exposed portion at the center of the flexible leak preventer 22 are joined by the bottom surface coupling portion 32, and the U-shaped of the canal sheet 12 A structure close to a three-dimensional shape is formed.
By maintaining such a three-dimensional shape stably, only the left and right heads 10 having elastic elasticity are brought into contact with the wearer's skin when worn. With this structure, the wearer's skin is isolated from the surface of the absorbent body 24 by the canal sheet 12 and does not come into direct contact.

In the absorbent article 100, the body fluid discharged from the wearer is discharged from the opening between the pair of left and right heads 10 to the inside of the canal part and received on the upper side of the canal sheet 12, and then the front and rear direction in the canal part In this way, it is transferred from the upper side of the canal sheet 12 to a wide area on the surface of the absorbent body 24 through a passage formed by the fine openings of the nonwoven fabric constituting the canal sheet 12.
The body fluid is received and moved very smoothly because the canal portion exists stably.
In one preferred embodiment of the present invention, the passage is provided at least at a part of the bottom surface of the canal sheet. Moreover, it is one of the preferable aspects of this invention that the said channel | path is provided in at least one part of the left-right side surface of the said canal sheet. Further, it is one of preferred embodiments of the present invention that the passage is provided to extend from the bottom surface of the canal sheet to the left and right side surfaces.

In the absorbent article described in Patent Literatures 1 to 3, the absorbent body and FLG are integrated, and there is a physical restriction mainly on the part of FLG or the like by the absorbent body. Although it is an obstacle to stabilization, in the present invention, the physical constraint mainly caused by the absorber is greatly increased by adopting a separate structure in which the absorber that is the main element of the R part is separated from the S part. Therefore, the three-dimensional structure of the canal member can be easily maintained, and the canal-specific effects of receiving and moving body fluid and transferring to the surface of the absorber can be exhibited.
Further, in the absorbent article of the present invention, the weight of the absorbent body can be reduced by the presence of a bottom surface coupling portion between the bottom surface of the S-part canal sheet and the surface of the R-part absorbent body or the surface of the leak preventer. The canal member is pulled down to reduce the sag and deformation of the entire canal member, and in particular, it is easy to maintain a V-shaped or U-shaped three-dimensional shape at the crotch.
Furthermore, in the absorbent article of the present invention, the presence of side edge joints between the left and right side surfaces of the S-part canal sheet and the side edges of the R-part leak preventer makes it conform to the canal member and the canal shape. The integration with the deformed absorber is advanced, and the absorber becomes like a part of the canal member. As a result, the three-dimensional shape is more reliably maintained at the crotch.

Furthermore, in the present invention, by configuring the S part and the R part as separate bodies, the configuration, size, shape, and the like of the absorber, leak preventer, etc. can be designed relatively freely. This facilitates product diversification.
In a conventional absorbent article, the length and width of the absorbent body must be designed within the range of the longitudinal length and the lateral width of the absorbent article.
In the present invention, for example, in the left-right direction, by making the width of the leak preventer wider than the width of the canal sheet, a space is created between a part of the side surface of the canal sheet and the surface of the absorber, and the space It is also possible to form the second body fluid movement passage on the left and right sides outside the canal using With respect to the length of the leak preventer, it can be shortened to a length corresponding to the crotch part, and conversely, it can be extended to the vicinity of the waistband beyond the front and rear ends of the canal seat.

  Furthermore, in the present invention, the absorbent article is composed of two modules, the S part and the R part, so that the structure itself is simplified, the number and types of members can be reduced, and the weight can be reduced. Cost is low. Furthermore, this modularization changes the manufacturing process to a method that combines two modules, which simplifies the process, reduces the investment cost, and at the same time significantly improves productivity.

  Hereinafter, the S part and the R part will be described in detail.

1. FIG. 2 is a schematic diagram showing an example of the S part in the absorbent article of the present invention which is an aspect of a tape-type diaper. FIG. 2A is a developed plan view schematically showing a state (tensed state) in which a stress is applied to the S part and pulled in the front-rear direction and the left-right direction to develop a substantially flat shape. FIG. 2B is a lateral end view taken along the line IIB-IIB in FIG. 2A in a tension state. FIG. 2C is a lateral end view taken along the line IIB-IIB in FIG. 2A when stress is not applied to the S part (in a relaxed state).

  The S part shown in FIG. 2 extends in the front-rear direction and has a pair of left and right heads 10a that are stretchable at least partially, and a pair of left and right heads 10a joined to both left and right edges, and a center part is worn. A canal member 14a having a canal sheet 12a that sometimes hangs downward in a convex shape, forms a bottom surface in the vicinity of the center, and forms side surfaces on the left and right sides, and is positioned around the wearer's waist when worn. It has the front coating | coated part 17a and the back coating | coated part 19a which function as a fixing member which fixes the canal member 14a to a wearer's body so that the head 10a of 14a may contact a wearer's skin.

Detachable members 20a are provided on the left and right sides of the rear covering portion 19a. A detachable member (not shown) is provided on the lower surface of the front covering portion 17a so as to be detachable from the detachable member 20a. These detachable members can be constituted by various surface fasteners, for example. Specifically, as the detachable members 20a provided on the left and right sides of the rear covering portion 19a, adhesive tape, Velcro tape (male), and as the detachable members provided on the lower surface of the leak preventer 10 of the front covering portion 17a, TLZ (Tape Landing Zone (female) and ZLZ (Zipper Landing Zone) (female) can be used.
Thus, it is one of the preferable aspects of this invention to have the attachment / detachment member which couple | bonds a front coating part and a back coating part so that attachment or detachment is possible. Thereby, the absorber article of the present invention can be made into a tape type diaper.

At the time of wearing, as shown in FIG. 2C, the canal sheet 12a hangs down from the pair of left and right heads 10a.
A canal bottom surface 34 formed by the vicinity of the center in the left-right direction of the canal seat 12a, a canal left side surface portion 36 formed by a portion hanging from the left head portion 10a of the canal seat 12a, and a right head portion 10a of the canal seat 12a. The canal part is formed by the canal right side surface portion 38 constituted by the portion hanging from the canal.

FIG. 3 is an explanatory diagram schematically illustrating the method of configuring the S part, taking a pants-type diaper as an example.
FIG. 3A shows a method (front-rear joining method) in which a front covering portion and a rear covering portion are formed, and an S part is formed by joining a canal member made separately from the front covering portion and the rear covering portion.
First, a material (for example, non-woven fabric) that constitutes the covering portion is prepared ((a)), and cut into two equal parts before and after along the two-dot chain line in the figure, and the front covering portion 17b and The rear covering portion 19b is configured (the front covering portion may be shortened and the rear covering portion may be lengthened), and held at a predetermined interval ((b)). Next, a canal member 14b having a head portion 10b and a canal seat 12b configured in separate steps is supplied ((c)), and the front and rear end portions and part of the left and right side edges of the canal member 14b are respectively connected to the front covering portion 17b. Then, the S part is formed by joining and integrating with the rear covering portion 19b ((d)).
FIG. 3B shows a method (left / right joining method) in which the left and right covering portions 16a are made and the canal member made separately is joined to form the S part.
First, a material (for example, non-woven fabric) constituting the covering portion is prepared ((a)), and cut into two equal parts along the two-dot chain line in FIG. Is held at a predetermined interval ((b)). Next, a canal member 14c having a head 10c and a canal sheet 12c configured in separate steps is supplied ((c)), the left and right side edges of the canal member 14c, the left edge of the right side covering part 16a, and the left side covering part. A part of the right edge of 16a is joined and integrated to form an S part ((d)).
Note that the absorbent article 100 of the tape-type diaper shown in FIG. 1 can be obtained by applying this left-right joining method.

2. Configuration of R Part FIGS. 4 to 9 are schematic diagrams showing various R parts, respectively.
Each of the R parts shown in FIG. 4 is configured by covering the entire surface of the sheet-like leak preventer, the absorber disposed thereon, and the leak preventer and the absorber with a surface sheet. Yes.
In these R parts, for example, the following materials can be used.
As an absorbent body, an SAP / pulp mixture containing SAP (weight per unit area 100 g / m ² ) and pulp (weight per unit area 200 g / m ² ) is formed into a mat shape, and a tissue (weight per unit area 20 g / m ² ) is used. A core-wrapped one can be used. As the leak preventer, a laminated sheet of a breathable PE film (weight per unit area 16 g / m ² ) and a PP non-woven fabric (weight per unit area 13 g / m ² ) can be used. As the surface sheet, a PE / PP spunbonded nonwoven fabric (weight per unit area 15 g / m ² ) subjected to surface hydrophilization treatment can be used.

FIG. 4A is a plan view of the R part. FIG. 4B is a lateral end view taken along the line IVB-IVB in FIG.
The R part shown in FIGS. 4A and 4B includes a sheet-like leak preventer 22a, an absorber 24a, and a surface sheet 40.
4A and 4B are provided from the front body F to the back body R through the crotch C.
The absorber 24a exists in the whole center part of the leak preventer 22a, and the other parts include left and right edges and front and rear ends made of the leak preventer 22a. A linear press line 42 penetrating from the front end to the rear end is provided at the center position in the left-right direction of the absorbent body 24a, and the bending at the center can be made uniform and easy. The press line can be formed, for example, by pressing a circular plate having gear-like irregularities while applying pressure to the irregular pattern.
4 (A) and 4 (B), the right and left edges are composed of a leak preventer 22a and a surface sheet 40 covering it, and the central part in the left and right direction is the leak preventer 22a. The absorber 24a and the surface sheet 40 that covers the absorber 24a are provided with a press line 42 at the center in the left-right direction, and are compressed and thinned. The width in the left-right direction of the R part can be arbitrarily set with respect to the width in the left-right direction of the canal sheet, but by making it wider than the width of the canal sheet in the left-right direction, There can be voids in between. The existence effect of this void will be described later.

FIG. 4C is a plan view of the R part. FIG. 4D is a vertical end view along line IVD-IVD in FIG.
The R part shown in FIG. 4C and FIG. 4D includes a sheet-like leak preventer 22a, an absorber 24b, and a surface sheet 40.
The R part shown in FIG. 4C and FIG. 4D is basically the same as the R part shown in FIG. 4A and FIG. 4B, but the absorber 24b extends in the front-rear direction. Two are arranged, and the difference is that there is no absorber between them.
The R part of this aspect is easily bent at the center in the left-right direction by the press line 42 and is also easily bent back and forth at the crotch part C where no absorber exists.

FIG. 4E is a plan view of the R part. FIG. 4F is a lateral end view taken along line IVF-IVF in FIG.
The R part shown in FIGS. 4E and 4F includes a sheet-like leak preventer 22a, an absorber 24c, and a surface sheet 40.
The R part shown in FIGS. 4 (E) and 4 (F) is basically the same as the R part shown in FIGS. 4 (A) and 4 (B), but the absorber 24c is arranged in the left-right direction. Two are arranged, and the difference is that there is no absorber between them.
The R part in this aspect is easy to bend at the center in the left-right direction.

FIG. 4G is a plan view of the R part. FIG. 4H is a lateral end view taken along line IVH-IVH in FIG.
The R part shown in FIG. 4G and FIG. 4H includes a sheet-like leak preventer 22a, an absorber 24d, and a surface sheet 40.
The R part shown in FIGS. 4 (G) and 4 (H) is basically the same as the R part shown in FIGS. 4 (A) and 4 (B). It is folded at the edge and differs in that it has one layer near the center and two layers on the left and right sides. In other words, the absorber 24d has a thin portion at the central portion in the left-right direction, and has thick portions on the left and right. In the present specification, the terms “thick portion” and “thin portion” of the absorber are expressed as “thick” and “thin” by paying attention to the difference in relative thickness.
The R part in this aspect is easy to bend at the center in the left-right direction.

  In the present invention, it is one of preferred embodiments that the absorber has a thick part and a thin part. For example, an aspect in which the absorber has a thick part and a thin part in the left-right direction, an aspect in which the absorber has a thin part in a central portion in the left-right direction, and a thick part on the left and right, and the absorber in the front-rear direction The aspect which has a thick part and a thin part, and the aspect which an absorber has a thin part in the center part of the front-back direction and has a thick part in the front and back are mentioned suitably.

Each of the R parts shown in FIG. 5 is configured by covering the entire surface of the sheet-shaped leak preventer, the absorber disposed thereon, and the leak preventer and the absorber with a surface sheet. Yes.
In these R parts, for example, the following materials can be used.
As the absorbent body, an SAP sheet which is an absorbent body formed into a sheet shape can be used. As the SAP sheet, for example, a bulky nonwoven fabric base material carrying SAP (weight per unit area 200 g / m ² ) in a stripe shape and covering the SAP surface with a net-like hot melt can be cited. As the leak preventer and the surface sheet, those similar to the R part shown in FIG. 4 can be used.

FIG. 5A is a plan view of the R part. FIG. 5B is a lateral end view along the line VB-VB in FIG.
The R part shown in FIGS. 5A and 5B includes a sheet-like leak preventer 22a, an absorber 24e, and a surface sheet 40.
The R part shown in FIGS. 5A and 5B is provided from the front body F through the crotch C to the back body R.
The absorber 24e is present in the entire central portion of the leak preventer 22a so that the stripe extends in the front-rear direction, and the other portions have left and right edges and front and rear ends made of the leak preventer 22a. .
In the R part of this aspect, the SAP sheet constituting the absorbent body 24e is easily bent to the left and right because the SAP existing sites and non-existing sites are alternately arranged in the left-right direction.

FIG. 5C is a plan view of the R part. FIG. 5D is a lateral end view along the line VD-VD in FIG.
The R part shown in FIG. 5C and FIG. 5D includes a sheet-like leak preventer 22a, an absorber 24f, and a surface sheet 40.
The R part shown in FIG. 5C and FIG. 5D is basically the same as the R part shown in FIG. 5A and FIG. 5B, but the absorber 24f is in the left-right direction. And a linear press line 42 penetrating from the front end to the rear end is provided at the center of the absorber 24f in the left-right direction.
The R part of this aspect is easy to bend at the center in the left-right direction by the press line 42, and the SAP sheet constituting the absorber 24f is alternately arranged with SAP existing sites and non-existing sites in the front-rear direction. It is easy to bend back and forth.

The R part shown in FIG. 6 is configured by covering the entire surface of the sheet-shaped leak preventer, the absorber disposed thereon, and the leak preventer and the absorber with a surface sheet.
In this R part, the same thing as the R part shown in FIG. 4 can be used as an absorber, a leak preventer, and a surface sheet.

FIG. 6A is a plan view of the R part. FIG. 6B is a lateral end view taken along line VIB-VIB in FIG.
The R part shown in FIG. 6 has a sheet-like leak preventer 22b, an absorber 24g, and a surface sheet 40a.
The R part shown in FIG. 6 is provided from the front body F to the back body R through the crotch C.
Two absorbers 24g are arranged in the left-right direction over the entire central portion of the leak preventer 22a, and there is no absorber between them. Moreover, the other part is equipped with the right-and-left edge part which consists of the leak preventer 22b, and the front-and-rear end part.
The leak preventer 22b has its left and right edges folded inward to cover the left and right parts of the absorber 24g over the entire length from the front end to the rear end, and is joined and fixed at the front and rear ends. Since a small gap extending in the front-rear direction is formed in the folded portion of the leak preventer 22b between the inner surface around the folded line and the left and right absorbers 24g, leakage of body fluid from the left and right edges There is an effect to prevent.

The R part shown in FIG. 7 is composed of a sheet-like leak preventer, a pair of left and right absorbers disposed thereon, and the entire surface of the leak preventer and absorber covered with a surface sheet. Yes.
In this R part, the same thing as the R part shown in FIG. 4 can be used as an absorber, a leak preventer, and a surface sheet.

FIG. 7A is a plan view of the R part. FIG. 7B is a lateral end view along the line VIIB-VIIB in FIG.
The R part shown in FIG. 7 includes a sheet-like leak preventer 22c, an absorber 24h, and a surface sheet 40b.
The R part shown in FIG. 7 has a relatively short length in the front-rear direction and is provided only in the crotch C. On the other hand, the width in the left-right direction is relatively wide and is considerably larger than the width in the left-right direction of the canal sheet.
The absorber 24h is disposed in the left and right sides of the leak preventer 22c with a large space between them, and is accommodated in a pair of left and right pocket portions 44 formed by folding the leak preventer 22c and having sufficient capacity. .
The leak preventer 22c is largely folded inward at the left and right edge portions to form deep left and right pocket portions 44, and is further folded outward with a space in the center in the left and right direction.
The leak preventer 22c covers the entire width in the left-right direction of the pair of left and right absorbers 24h over the entire length from the front end to the rear end, and seals the left and right edges and the front and rear ends except for the portion facing the center. A pocket portion 44 is formed. The left and right pocket portions 44 have a pair of opposed openings 46 facing the center in the left-right direction.
As will be described in detail in the description of FIG. 10C, the folded portion of the leak preventer 22c becomes a side edge coupling portion joined to the canal sheet. The central portion in the left-right direction where no absorber is present is composed of the leak preventer 22c and the surface sheet 40b, and has flexibility.
The R part of this aspect, which will be described in detail in the description of FIG. 10C, accommodates the body fluid transferred by the left and right pocket portions 44, and the central portion is bent to function as a body fluid movement passage.

The R part shown in FIG. 8 is configured by covering the entire surface of the sheet-like leak preventer, the absorber disposed thereon, and the leak preventer and the absorber with a surface sheet.
In this R part, the same thing as the R part shown in FIG. 4 can be used as an absorber, a leak preventer, and a surface sheet.

FIG. 8A is a plan view of the R part. FIG. 8B is a vertical end view taken along line VIIIB-VIIIB in FIG.
The R part shown in FIG. 8 includes a sheet-like leak preventer 22d, an absorber 24i, and a surface sheet 40c.
The R part shown in FIG. 8 is provided from the front body F to the back body R through the crotch C.
The absorbent body 24i has a narrowed shape at the crotch part C on the left and right sides. The absorbent body 24i is disposed in the entire central portion of the leak preventer 22d, and the other parts are the left and right edges formed by the leak preventer 22d and the front and rear. It has an end. A linear press line 42 penetrating from the front end to the rear end is provided at the center position in the left-right direction of the absorber 24i, and the bending at the center can be made uniform and easy.
The leak preventer 22d is largely folded inward in the front-rear direction at the front and rear edges, covers the vicinity of the front and rear ends of the absorber 24i, and excludes the part facing the center, and the left and right side edges of the folded part. The overlapping portion of the leak preventer 22d is sealed to form the front pocket portion 48 and the rear pocket portion 50. The front pocket portion 48 has an opening 52 facing rearward, and the rear pocket portion 50 has an opening 54 facing forward.
The R part of this aspect accommodates the body fluid transferred by the front pocket part 48 and the rear pocket part 50, and can prevent exudation and overflow.
Thus, the front part of the absorber is covered with the lower surface of the leak preventer folded back at the front end, and the front pocket portion is provided between the upper surface of the absorber and the lower surface of the leak preventer that is folded back. It is one of the preferred embodiments, and the rear portion of the absorber is covered with the lower surface of the leak preventer folded back at the rear end, and a rear pocket portion is provided between the upper surface of the absorber and the lower surface of the folded leak preventer. This is one of the preferred embodiments of the present invention.

The R part shown in FIG. 9 is configured by covering the entire surface of the sheet-like leak preventer, the absorber disposed thereon, and the leak preventer and the absorber with a surface sheet.
In this R part, the same thing as the R part shown in FIG. 4 can be used as an absorber, a leak preventer, and a surface sheet.

FIG. 9A is a plan development view schematically showing a state (tensed state) in which a stress is applied to the R part and pulled in the front-rear direction and the left-right direction to develop a substantially flat shape. FIG. 9B is a lateral end view along the line IXB-IXB in FIG. 9A in the above state.
The R part shown in FIG. 9 includes a sheet-like leak preventer 22a, an absorber 24j, a surface sheet 40, and an elastic member 56.
The R part shown in FIG. 9 is provided from the front body F to the back body R through the crotch C.
The R part shown in FIG. 9 is basically the same as the R part shown in FIGS. 4 (A) and 4 (B), but the absorbent body 24j has a narrowed shape at the crotch C. However, it is different in that the expansion / contraction member 56 is provided on the left and right side edges of the leak preventer 22a. The absorber 24j is the same as the absorber 24i in that the absorber 24j is narrow, but the left and right widths are slightly narrow, and the left and right edges of the leak preventer 22a without the absorber 24i are relatively wide. Yes.
Stretchable members 56 are disposed on the left and right edges of the leak preventer 22a. As the elastic member 56, for example, two polyurethane filaments can be used.
Since the R part of this aspect has the elastic members 56 at the left and right edges, the left and right side surfaces of the leak preventer 22a are raised.
Thus, it is one of the preferable aspects of this invention to have the expansion-contraction member which has the effect | action which shortens the length of the front-back direction in the right-and-left edge part of a leak preventer.

In the present invention, the leak preventer is not particularly limited as long as the leak preventer is a sheet-like leak preventer that prevents body fluid from leaking.
As the material of the leak preventer, one that is generally used as a back sheet can be used. Specifically, for example, a resin film such as PE, PP, PET, and EVA; and a body fluid impermeable sheet such as a foamed sheet of the resin can be used. As the body fluid impermeable sheet, a material having air permeability such as an air permeable film is also preferably used.
Moreover, when using the film of the said resin, in order to improve a touch and an external appearance, it can also be used as a multilayer sheet | seat of a film and a nonwoven fabric. In this case, as the nonwoven fabric, SB having a relatively low basis weight, a thermal bond nonwoven fabric (for example, an air-through type), or the like is preferably used.
Also, a multilayer sheet of the resin film and a sheet-like absorber described later can be used.
A highly water-resistant nonwoven fabric can also be used. Examples of the highly water-resistant nonwoven fabric include SMS having water resistance of 100 mmH ₂ O or more according to JIS L1092: 2009, and microporous cellulose (MFC) or wax in the pores of the nonwoven web. SMS with which water resistance was provided by filling with is mentioned. In this case, you may use independently and can also be used as a multilayer sheet | seat of a film and a highly water-resistant nonwoven fabric.

  The leak preventer may be composed of a plurality of members.

  The leak preventer has a sheet shape, and the shape thereof is not particularly limited as long as the absorber can be accommodated in the upper part.

  The absorber used in the present invention is not particularly limited as long as it can absorb body fluid, and an absorber used in a conventionally known absorbent article can be used. For example, pulverized wood pulp, an absorber formed by mixing pulverized wood pulp and granular or powdery SAP, and formed into a mat shape, or a sheet-shaped absorber mainly composed of SAP formed into a thin sheet Etc. can be used. These absorbers are generally covered with a core wrapping material made of tissue paper, non-woven fabric, perforated film, etc. in order to maintain their shape and at the same time prevent the generation and removal of fine powders generated from pulp and SAP. Is. In the present specification, when a core wrapping material is used, the core wrapping material is also referred to as an “absorber”.

The sheet-like absorbent body is excellent in form stability, SAP drop-off prevention performance, and the like.
Among the sheet-like absorbers, SAP is 50% by mass or more, preferably 60% by mass or more, and more preferably 70% by mass with respect to the entire sheet-like absorber (when the core wrapping material is included, the portion excluding the core wrapping material). It is preferable that it is the superabsorbent sheet contained above. In addition, the SAP content in the superabsorbent sheet is preferably 95% by mass or less from the viewpoint of the stability of the superabsorbent sheet.

The highly water-absorbent sheet is an ultrathin sheet-like absorbent body mainly composed of SAP. The superabsorbent sheet has a very small thickness because the SAP content is extremely high. The thickness of the superabsorbent sheet is preferably 1.5 mm or less, and more preferably 1 mm or less. The thickness of the super absorbent sheet is measured by the method defined in JIS L1096: 2010.
As long as the superabsorbent sheet is an ultra-thin sheet-like absorbent body mainly composed of SAP, the configuration and the production method are not particularly limited.
For example, a super absorbent sheet obtained by the Air Laid method can be mentioned. The Air Laid method is a method in which pulverized wood pulp and SAP are mixed, a binder is added, and the resultant is formed into a sheet shape to obtain a highly water-absorbent sheet. As a highly water-absorbent sheet obtained by this method, for example, NOVATHIN (US registered trademark) manufactured by Rayonier, USA, B-SAP manufactured by Oji Kinocross, etc. are known.
Moreover, the superabsorbent sheet obtained by the method of coating SAP dispersion | distribution slurry on body fluid permeable sheets, such as a nonwoven fabric, is also mentioned. Here, it is preferable that the SAP dispersion slurry is obtained by dispersing SAP and microfibrillated cellulose (MFC) in a mixed solvent of water and ethanol. As a highly water-absorbent sheet obtained by this method, MegaThin (registered trademark) manufactured by Japan Absorbent Technology Laboratory is known, for example.
One of the preferred embodiments of the superabsorbent sheet is that the portions where the absorber exists and the portions where the absorber does not exist alternately exist in a stripe shape. For example, a mode in which a portion where the absorber is present and a portion where the absorber is not present in the left-right direction and a mode in which a portion where the absorber is present and a portion where the absorber is absent are alternately present in the front-rear direction are suitable. It is mentioned in.
In addition, for example, a superabsorbent sheet obtained by a method in which a large amount of SAP is supported on a raised nonwoven fabric and fixed with a hot melt adhesive, an emulsion binder, an aqueous fiber, etc., and the fibrous SAP is a PET (polyethylene terephthalate) fiber. Examples thereof include a superabsorbent sheet obtained by a method of mixing and forming a web, and an SAP sheet in which the upper and lower sides of the SAP layer are sandwiched between tissues.

At least one layer of the absorber is disposed on the top of the leak preventer. That is, the absorber may be a single layer or two or more layers (multiple layers).
The absorber can also be arranged in a folded state.

  In the present invention, the R part may further have a surface sheet. As the surface sheet, those used as the top sheet of conventional absorbent products can be used, but skin care performance such as antibacterial properties may be imparted. Further, a special skin contact sheet as proposed by the present inventors in the pamphlet of International Publication No. 02/00154 can also be used.

3. Coupling Mode of S Part and R Part In the absorbent article of the present invention, at least in the crotch, a part of the bottom side of the bottom surface of the canal sheet and a part of the surface of the absorbent body or a part of the top surface of the leak preventer Are coupled at the bottom surface coupling portion, and at least at the crotch part, a part of the outside of the left and right side surfaces of the canal sheet and the left and right side edge portions of the leak preventer are coupled at the side edge coupling portion. Thereby, the body fluid received in the canal part can be smoothly transferred to the surface of the absorber via the passage.

FIG. 10 is a schematic lateral end view of the crotch part C showing various absorbent articles of the present invention.
Absorbent article 100a shown in FIG. 10 (A) has an S part and an R part shown in FIGS. 4 (A) and 4 (B).
The canal member 14d constituting the S part has a pair of left and right heads having elasticity (for example, three polyurethane filaments arranged in parallel and covered with the same nonwoven fabric as a canal sheet described later) 10d, A canal sheet (for example, a PE / PET non-woven fabric with a hydrophilized surface (for example, a basis weight of 20 g / m ² )) 12d that forms a central portion by joining the left and right edges to a pair of heads 10; Become.
The S-part canal sheet 12d and the R-part are joined and integrated at three locations, the left and right side edge coupling portions 26a and the bottom surface coupling portion 32a. Specifically, the upper surfaces of the left and right side edges (covered with the surface sheet 40) of the leak preventer 22a and the outer surface of the canal sheet 12d are bonded together by a hot melt adhesive, and the side edge bonding portion 26a. Is forming. Moreover, the press line equivalent part of the center part of the left-right direction of the surface of the absorber 24a (covered with the surface sheet 40) and the outer side (lower side) of the bottom surface of the canal sheet 12d are bonded with a hot melt adhesive. The bottom surface coupling portion 32a is formed.
In the absorbent article 100a, the leak preventer 22a and the absorber 24a of the R part are deformed so as to follow the U-shaped shape of the canal sheet 12d, and there is a large gap between the canal sheet 12d and the R part. not exist.
Thus, it is one of the preferable embodiments of the present invention that the leak preventer has a convex shape downward at least at the crotch portion when worn. Thereby, in a crotch part, sufficient gap | interval can be provided between the ejector and the surface of an absorber, and wetting of a wearer's skin can be prevented.

Absorbent article 100b shown in FIG. 10 (B) has an S part and an R part shown in FIGS. 6 (A) and 6 (B).
The S part is the same as that in the absorbent article 100a shown in FIG.
The S-part canal sheet 12d and the R-part are joined and integrated at three locations, the left and right side edge coupling portions 26b and the bottom surface coupling portion 32b. Specifically, the upper surface of the folded portion of the right and left side edges of the leak preventer 22b and the outer surface of the canal sheet 12d are bonded with a hot melt adhesive to form a side edge bonding portion 26b. Further, there is no absorber at the center in the left-right direction of the leak preventer 22b, and the thinned portion (covered with the surface sheet 40a), the outer side (lower side) of the bottom surface of the canal sheet 12d, and Are bonded by a hot melt adhesive to form the bottom surface bonding portion 32b.
In the absorbent article 100b, due to the relatively wide shape of the leak preventer 22b that is folded back, the left and right side surfaces of the canal sheet 12d and the R part extend in two large front and rear directions. A gap S (which functions as a body fluid movement path) is present. Therefore, the outer surface of the canal sheet 12d and the surface of the absorber 24g are separated by the generated gap S.
As described above, the width of the leak preventer in the left-right direction is wider than the width in the left-right direction of the canal sheet, and thus it is preferable that a gap exists between the canal sheet and the surface of the absorber. one of. In this aspect, it is preferable that the width of the leak preventer is 10 mm or more wider than the width of the canal sheet in the left-right direction.
Among them, the width of the left and right side edges of the leak preventer without an absorber on the upper side is widened to form a wide side edge, and a side edge coupling part is provided there, thereby providing a gap between the canal sheet and the surface of the absorber. An embodiment in which voids are present is preferable. In addition, the left and right wide side edge portions are folded so that the left and right sides face each other from the left and right toward the center in the width direction so as to cover a part of the upper surface of the absorbent body. A mode in which a gap is present between the canal sheet and the surface of the absorber is more preferable by joining the overlapping portions and providing a side edge joint on the upper surface of the folded side edge.

Absorbent article 100c shown in FIG. 10C has an S part and an R part to be described later.
The S part is the same as that in the absorbent article 100a shown in FIG.
The R part has the same leak preventer structure as the R part shown in FIGS. 7A and 7B, but the existence state of the absorber and the like is different.
The sheet-like leak preventer 22e is the same as the leak preventer 22c in the R part shown in FIGS. 7 (A) and 7 (B). The leak preventer 22e is largely folded inward at the left and right edges, and is further folded back outward with an interval in the center in the left-right direction.
The relatively narrow absorbent body 24k is arranged with a large space on both left and right sides of the leak preventer 22e, and is accommodated in a pair of deep left and right pocket portions 44a formed by folding the leak preventer 22e. . The relatively wide absorber 24l extends in the left-right direction from one side of the left and right pocket portions 44a on the bottom surface of the leak preventer 22e. On the absorber 24l, a diffusion sheet 58 is provided over almost the entire region in the left-right direction. The diffusion sheet 58 is not particularly limited as long as it has a flow path that allows urine to move, but it is preferable that the diffusion sheet 58 does not have body fluid absorbability or body fluid retention because the urine moves quickly. Specifically, the uneven | corrugated sheet | seat member (open hole uneven | corrugated sheet member) which has an opening in a convex part is mentioned suitably.
Since the absorbent article 100c includes the absorbent bodies 24k and 24l as described above, the absorbent article 100c has a larger absorption capacity than the absorbent article having the R part shown in FIGS. 7 (A) and 7 (B). .
In this way, the left and right wide side edges are folded back so that the left and right sides face each other from the left and right toward the center in the width direction so as to cover the entire surface in the left and right direction of the absorber. It is preferable that the left and right pocket portions are formed and the gap S is present between the canal sheet and the surface of the absorbent body by providing the side edge coupling portion on the upper surface of the folded side edge portion. one of.

The S-part canal sheet 12d and the R-part are joined and integrated at three locations of the left and right side edge coupling portions 26c and the bottom surface coupling portion 32c. Specifically, the inner side surface of the folded portion of the left and right side edges of the leak preventer 22e and the outer side surface of the canal sheet 12d are bonded with a hot melt adhesive to form a side edge bonding portion 26c. Further, as the absorber in the central portion in the left-right direction of the leak preventer 22e, only the absorber 24k is present, the absorber 24l is not present, and a thinned portion (covered with the diffusion sheet 58). The outer side (lower side) of the bottom surface of the canal sheet 12d is bonded with a hot melt adhesive to form a bottom surface bonding portion 32c.
In the absorbent article 100c, due to the relatively wide shape of the leak preventer 22e that is folded back, the left and right side surfaces of the canal sheet 12d and the R part extend in two large front and rear directions. A gap S (which functions as a body fluid movement path) is present. The outer surface of the canal sheet 12d and the surfaces of the absorbers 24k and 24l are in a state where these absorbers are accommodated in the left and right pocket portions 44a and further separated by the generated gap S.
The capsule-type absorbent article 100c having the left and right pocket portions 44a shown in FIG. 10C can be accommodated in the crotch portion C so as to completely cover the excretion portion of the wearer. Therefore, for example, it is suitably used for incontinence products for women and sanitary napkins for night.

4). Transfer of body fluid In the absorbent article of the present invention, a passage for transferring body fluid from the upper side of the canal sheet to the surface of the absorber is provided.
The passage is, for example, a minute opening of the canal sheet itself (for example, when the canal sheet is made of a liquid-permeable nonwoven fabric, pores of the liquid-permeable nonwoven fabric), a slit provided in the canal sheet, the canal sheet The notch provided in is mentioned.
When the wearer wearing the absorbent article of the present invention discharges bodily fluid, the discharged bodily fluid is received on the upper side of the canal sheet, and then moved from the upper side of the canal sheet while moving in the front-rear direction. It is transferred to the surface of the absorber through the passage.

5. Manufacturing method of absorbent article of the present invention The manufacturing method of the absorbent article of the present invention is not particularly limited, but a step of forming an S part and an R part respectively, and then a step of combining the S part and the R part It can manufacture by performing.
As described above, by modularizing the S part and the R part, the manufacturing process is simplified. Therefore, the investment cost can be suppressed and the productivity is excellent.

  Hereinafter, examples of more specific embodiments of the absorbent article of the present invention will be described.

FIG. 11 is a schematic view showing another example of the embodiment of the absorbent article according to the present invention. Specifically, FIG. 11 includes an S part (SP) and an R part (RP), and the S part is joined to the R part at the bottom surface and part of the side edge of the S part and integrated. An adult pant diaper is shown.
FIG. 11A shows an absorbent article that is an aspect of a pants-type diaper, by cutting waist absorbent portions (Z and Z ′ in the figure) on the left and right sides of the waist gather to apply stress to the absorbent article. It is the plane development view which showed typically the state which pulled and developed in the front-back direction and the left-right direction, and made it almost flat. FIG. 11B is a lateral end view along line XIB-XIB in FIG. 11A in the above state. FIG. 11C is a lateral end view taken along line XIC-XIC in FIG. FIG. 11D is a lateral end view taken along line XIC-XIC in FIG. 11A when stress is not applied to the absorbent article (in a relaxed state). In the following description, the material of each member is an example.

  The absorbent article 101 of the present invention shown in FIG. 11 basically has a pair of left and right heads 10e extending in the front-rear direction and having at least a part of elasticity, and a pair of left and right heads 10e. A canal member 14e having a canal sheet 12e, which has a canal sheet 12e having an edge joined, a central portion depending on a convex shape on the lower side when worn, a bottom surface near the center, and a side surface on both right and left sides, and a canal member when worn An S part having a fixing member that fixes the canal member 14e to the wearer's body so that the head 10e of the 14e contacts the skin of the wearer; a sheet-like leak preventer 22f that prevents leakage of bodily fluids And an R part having an absorber 24m capable of absorbing bodily fluids arranged on the upper side of the leak preventer 22f.

The S part of the absorbent article 101 is a front-rear joining system exemplified in FIG. 3A, whereas the S part of the absorbent article 100 is an S part of the left-right joining system exemplified in FIG. 3B. S part.
The S part includes a front covering portion 17c and a rear covering portion 19c. Three relatively thick elastic yarns (for example, 780 dtex polyurethane filament) are juxtaposed on the outer edge in the front-rear direction, and three relatively thin elastic yarns (for example, 470 dtex polyurethane filament) are juxtaposed on the inner side in the front-rear direction. A multi-layer sheet is prepared which is sandwiched and bonded by a sheet of non-woven fabric (for example, a liquid-impermeable PP SMS non-woven fabric (for example, basis weight 15 g / m ² )), and this will be described with reference to FIG. Thus, what was cut | disconnected in the center part of the front-back direction and divided into 2 can be used as the front coating | coated part 17c and the back coating | coated part 19c, respectively.
The front covering portion 17c and the rear covering portion 19c are integrated and cover the periphery of the wearer's abdomen when worn. Thus, it is one of the preferable aspects of this invention that a front coating | coated part and a back coating | coated part integrate and coat | cover the circumference | surroundings of a wearer's abdomen at the time of wear.
A canal member 14e is disposed on the central upper surface in the left-right direction of the front covering portion 17c and the rear covering portion 19c. The front end of the canal member 14e is joined to the upper surface of the front covering portion 17c by the canal portion-front end coupling portion 60, and the rear end of the canal member 14e is joined to the upper surface of the rear covering portion 19c by the canal portion-rear end coupling portion 62. Thus, the S part is configured.
The canal member 14e has a pair of left and right heads having elasticity (for example, two 780 dtex polyurethane filaments arranged in parallel and covered with the same nonwoven fabric as the canal sheet) 10e and a pair of left and right heads 10e It has a canal sheet (for example, a PP / PE spunbonded nonwoven fabric whose surface is hydrophilized) 12e that combines both edges to form a central portion.

The R part of the absorbent article 101 uses the left and right separated absorbent bodies illustrated in FIGS. 4E and 4F as the R part of the absorbent article 100, whereas FIG. The absorber which consists of a SAP sheet illustrated in (1) is used.
The R part includes a sheet-like leak preventer (for example, a laminate of PP non-woven fabric made of PP (for example, 13 g / m ^{2 in} weight) on a breathable PE film (for example, 15 μm thick)) 22f, Megashin (Nippon Absorber Technology Laboratory Co., Ltd.) coated with an SAP sheet (for example, an SAP layer (for example, weight per unit area: 200 g / m ² ) on a non-woven fabric in a 10 mm wide strip extending in the front-rear direction) 24m) and a surface sheet (for example, an air-through nonwoven fabric made of PE / PET (for example, a weight per unit area of 20 g / m ^2)). )).

The R part is disposed from the lower side of the rear end of the front covering portion 17c to the lower side of the front end of the rear covering portion 19c through the lower side of the canal member 14e. The front end of the R part is coupled to the lower surface of the front covering portion 17c by the body non-contact part (R part) -front end coupling portion 64, and the rear end of the R part is the lower surface of the rear covering portion 19c and the body non-contact part (R part). )-It is coupled at the rear end coupling portion 66. Both the R part-front end coupling portion 64 and the R part-rear end coupling portion 66 are sealed in the form of a belt over the entire width.
Thus, it is one of the preferable aspects of the present invention that the lower surface of the front covering portion and the front end portion of the leak preventer are coupled by the R part-front end coupling portion extending in the left-right direction, Moreover, it is one of the preferable aspects of this invention that the lower surface of a back coating | coated part and the front-end part of a leak preventer are couple | bonded by the R part-rear end coupling | bond part extended in the left-right direction.
In the leak preventer 22f, the upper surface of the side edge folded back on the absorber 24m is coupled to the lower surfaces of the front covering portion 17c and the rear covering portion 19c by the left and right side edge coupling portions 26d (FIG. 11 ( B)).
The R part and the canal sheet 12e are coupled by the left and right side edge coupling portions 26d and the bottom surface coupling portion 32d. The side edge coupling portion 26d between the folded portion of the leak preventer 22f and the canal sheet 12e is provided so as to have an intermittent portion in a spot shape from the front end portion to the rear end portion of the canal sheet 12e. Is not restrained. The bottom surface coupling portion 32d is provided in the crotch portion C at the center in the left-right direction, and extends back and forth in a band shape on the surface of the absorber 24m (specifically, the surface sheet 40d) (FIG. 11C). reference).

In the absorbent article 100, the R part is joined to the outer surface of the canal sheet, and the outer part of the canal sheet and the absorbent body are joined as in the embodiment illustrated in FIG. The R part is joined to the lower surfaces of the front covering portion 17c and the rear covering portion 19c, and the leak preventer 22f of the leak preventer 22f is formed as shown in FIG. 10B. The width of the side edge is widened and folded back to the upper side of the absorber 24m.
At the time of wearing, the canal sheet 12e has a U-shape, and in the region between the left and right side edge coupling portions 26d and the bottom surface coupling portion 32d, between the canal sheet 12e and the upper surface of the absorber 24m, There is a gap S (functioning as a body fluid movement passage) that is a passage-like gap extending in the large front-rear direction one by one.
The presence of the left and right gaps S enhances the effect of preventing contact between the surface of the wearer's body in contact with the head 10e by the canal sheet 12e and the surface of the absorber 24m.
Further, if the space formed inside the canal member 14e is a first passage through which body fluid discharged from the wearer moves in the front-rear direction, the left and right gaps S are formed on the absorber 24m from above the canal member 14e. The body fluid that has been transferred to the surface serves as a second passage for moving the surface of the absorber 24m.
In the absorbent article 101, the presence of the first passage and the second passage allows the discharged body fluid to be distributed, diffused and absorbed quickly and uniformly over the entire vertical and horizontal directions of the absorbent body 24m. The absorbing capacity of the absorber 24m can be effectively used.

FIG. 12 is a schematic view showing still another example of the embodiment of the absorbent article of the present invention. Specifically, FIG. 12 has an S part (SP) and an R part (RP), and the S part is coupled to the R part at the bottom surface and part of the side edge of the S part. An adult pant diaper is shown.
FIG. 12A shows an absorbent article which is an aspect of a pant-type diaper, by cutting the waist article at the waist seal portions (Z and Z ′ in the figure) on both the left and right sides of the waist gather to apply stress to the absorbent article. It is the plane development view which showed typically the state which pulled and developed in the front-back direction and the left-right direction, and made it almost flat. FIG. 12B is a vertical end view along the line XIIB-XIIB in FIG. 12A in the above state. FIG. 12C is a lateral end view along the line XIIC-XIIC in FIG. 12A in the above state. FIG. 12D is a lateral end view along the XIID-XIID line in FIG. 12A in the above state. In the following description, the material of each member is an example.

The absorbent article 102 is the same as the absorbent article 101, but the shape of the S part and the length of the R part in the front-rear direction are different.
The S part of the absorbent article 102 has a longer length in the front-rear direction of the front covering portion 17d and the rear covering portion 19d than the S part of the absorbent article 101. The length of the front covering portion 17c and the rear covering portion 19c of the absorbent article 101 in the front-rear direction is about 170 mm, and the length of the front covering portion 17d and the rear covering portion 19d of the absorbent article 102 in the front-rear direction is 230 mm. Degree.

A canal member 14e is disposed on the upper surface in the center in the left-right direction of the front covering portion 17d and the rear covering portion 19d. The front end of the canal member 14e is joined to the upper surface of the front covering portion 17d by the canal portion-front end coupling portion 60a, and the rear end of the canal member 14e is joined to the upper surface of the rear covering portion 19d by the canal portion-rear end coupling portion 62a. Thus, the S part is configured. The canal portion-front end coupling portion 60a is at a position about 1/3 of the rear side of the front covering portion 17d, and the canal portion-rear end coupling portion 62a is at a position of about 1/3 of the front side of the rear covering portion 19d.

The R part is disposed longer in the front-rear direction than the full length of the canal member 14e from the lower side near the front end of the front covering portion 17d to the lower side near the rear end of the rear covering portion 19d via the lower side of the canal member 14e. . The front end of the R part is coupled to the lower surface of the front covering portion 17d and the R part-front end coupling portion 64a, and the rear end of the R part is coupled to the lower surface of the rear coating portion 19d and the R part-rear end coupling portion 66a. . Each of the R part-front end coupling portion 64a and the R part-rear end coupling portion 66a is provided in a strip shape over the entire width in the left-right direction. In this case, the elastic strength of the elastic yarns of the waist gathers 68 and the shearing gathers 70 is increased so as not to hinder the lateral stretchability of the waist gathers 68 and the shearing gathers 70 of the front covering portion 17d and the rear covering portion 19d. This is one of the preferred embodiments.
The R part and the canal sheet 12e are coupled by left and right side edge coupling portions 26e and a bottom surface coupling portion 32e. The side edge coupling portion 26e between the folded portion of the leak preventer 22f and the canal sheet 12e is provided so as to have an intermittent portion in a spot shape from the front end portion to the rear end portion of the canal sheet 12e. Is not restrained. The bottom surface coupling part 32e is provided in the crotch part C at the center part in the left-right direction, and extends back and forth in a strip shape on the surface of the absorber 24m (specifically, the surface sheet 40d) (FIG. 12B). reference).

The front end and the rear end of the R part are covered by the front covering portion 17d and the rear covering portion 19d, and the front surfaces of the front body F and the rear body R of the leak preventer 22f and the absorber 24m are covered by the upper surface. A relatively long front pocket 48a and rear pocket 50a are formed. Note that the absorbent article 101 also has a pocket-like space based on a similar covering portion, but the length is shorter than that of the absorbent article 102.
Further, in the present invention, the front end portion of the leak preventer is folded back so as to cover a part of the upper surface of the absorber, and the overlapping portions of the leak preventers on the left and right side edges of the folded portion are combined, A pocket is formed in the front part of the body non-contact part, and the upper surface of the folded part of the leak preventer and the lower surface of the front covering part are joined by the front end joint part, and the rear end part of the leak preventer is absorbed. Folded forward so as to cover a part of the upper surface of the body, and joined the overlapping parts of the leak preventers on the left and right side edges of the folded part, forming a pocket behind the body non-contact part, A mode in which the upper surface of the folded portion and the lower surface of the rear covering portion are coupled by the rear end coupling portion is also a preferred mode.

As for the joining mode of the S part and the R part, the R part is joined to the lower surface of the front covering portion 17d and the rear covering portion 19d, and the width of the side edge of the leak preventer 22f is increased, similar to the absorbent article 101. Folded above the absorber 24m.
At the time of wearing, the canal sheet 12e has a U-shape, and is a region between the left and right side edge coupling portions 26e and the bottom surface coupling portion 32e, between the canal sheet 12e and the upper surface of the absorber 24m. There is a gap (functioning as a body fluid movement passage) that is a passage-like gap extending in the large front-rear direction one by one.
If the space formed inside the canal member 14e is the first passage through which the body fluid discharged from the wearer moves in the front-rear direction, the left and right gaps are from the top of the canal member 14e to the surface of the absorber 24m. The transferred body fluid serves as a second passage for moving on the surface of the absorber 24m.
In the absorbent article 102, the presence of the first passage and the second passage allows the discharged body fluid to be distributed, diffused and absorbed quickly and uniformly over the entire vertical and horizontal directions of the absorbent body 24m. The absorbing capacity of the absorber 24m can be effectively used.

As mentioned above, although the absorber article of the present invention was explained based on each embodiment of illustration, the present invention is not limited to these, for example, the composition of each part is arbitrary which can exhibit the same function Can be replaced with configuration.
Moreover, it can also be set as another embodiment by combining arbitrarily the structure of each part in each embodiment.

  The absorbent article of the present invention is suitably used for disposable diapers (for children and adults), incontinence products, training pants, feminine sanitary products, and the like.

Claims (20)

An absorbent article composed of two modules, a body contact part and a body non-contact part,
The body contact part is
A pair of left and right heads extending in the front-rear direction and having at least a part of elasticity, and both left and right edges are coupled to the pair of left and right heads, and the center part hangs downward in a convex shape when worn, A canal member having a bottom surface in the vicinity and a canal sheet forming side surfaces on the left and right sides;
A fixing member for fixing the canal member to the wearer's body so that the head of the canal member contacts the wearer's skin when worn;
The body non-contact part is
A sheet-like leak preventer that prevents leakage of bodily fluids;
An absorber capable of absorbing bodily fluids disposed on the upper side of the leak preventer,
A passage for transferring body fluid from the upper side of the canal sheet to the surface of the absorber is provided,
At least in the crotch part, a part of the lower side of the bottom surface of the canal sheet and a part of the surface of the absorber or a part of the upper surface of the leak preventer are coupled by a bottom surface coupling part,
At least in the crotch, a part of the outside of the side surface on both the left and right sides of the canal sheet and the left and right side edges of the leak preventer are joined by a side edge joint,
When the wearer discharges bodily fluid, the discharged bodily fluid is received on the upper side of the canal sheet, and then transferred from the upper side of the canal sheet to the surface of the absorber through the passage while moving in the front-rear direction. Absorbent article.   The absorbent article according to claim 1, wherein the bottom surface coupling portion extends in a front-rear direction in a band shape in a region including a crotch portion.   The absorbent article according to claim 1 or 2, wherein the side edge coupling portion extends in a front-rear direction in a band shape in a region including a crotch portion.   The absorbent article according to claim 1 or 2, wherein the side edge coupling portion is present in a spot shape over substantially the entire right and left side edge portions of the leak preventer.   The absorbent article according to any one of claims 1 to 4, wherein an outer surface of the canal sheet and a front end portion of the leak preventer are joined by a front end joint portion extending in a left-right direction.   The front end portion of the leak preventer is folded back so as to cover a part of the upper surface of the absorbent body, and the overlapping portions of the leak preventers on the left and right side edges of the folded portion are joined, and the body non-contact The absorbent article according to claim 5, wherein a front pocket portion is formed at a front portion of the part, and an upper surface of the folded portion of the leak preventer and an outer surface of the canal sheet are joined by a front end joint portion.   The absorbent article according to any one of claims 1 to 6, wherein an outer surface of the canal sheet and a rear end portion of the leak preventer are joined by a rear end joint portion extending in a left-right direction.   The rear end portion of the leak preventer is folded forward so as to cover a part of the upper surface of the absorber, and the overlapping portions of the leak preventers on the left and right side edges of the folded portion are joined, The absorbent article according to claim 7, wherein a rear pocket portion is formed at a rear portion of the contact part, and an upper surface of the folded portion of the leak preventer and an outer surface of the canal sheet are joined by a rear end joint portion.   The absorbent article according to any one of claims 1 to 8, wherein the fixing member has a front covering portion that covers the front body and a rear covering portion that covers the rear body.   The absorbent article according to claim 9, further comprising a detachable member that detachably couples the front covering portion and the rear covering portion.   The absorbent article according to claim 9, wherein the front covering portion and the rear covering portion are integrated to cover the periphery of the wearer's abdomen when worn.   The absorber according to any one of claims 9 to 11, wherein a lower surface of the front covering portion and a front end portion of the leak preventer are coupled by a body non-contact part-front end coupling portion extending in a left-right direction. Goods.   The absorbent article according to claim 12, wherein a front portion of the absorber is covered by a lower surface of the front covering portion, and a front pocket portion is provided between an upper surface of the absorber and a lower surface of the front covering portion.   The absorbent article according to claim 12 or 13, wherein a rear portion of the absorber is covered by a lower surface of the rear covering portion, and a rear pocket portion is provided between an upper surface of the absorber and a lower surface of the rear covering portion.   The width in the left-right direction of the leak preventer is wider than the width in the left-right direction of the canal sheet, whereby a gap exists between the canal sheet and the surface of the absorber. An absorbent article according to any one of the above.   By widening the width of the left and right side edges of the leak preventer without an absorber on the upper side to form a wide side edge, and providing the side edge coupling part there, the canal sheet and the surface of the absorber The absorbent article according to claim 15, wherein there are voids therebetween.   On the said leak preventer, the part in which the said absorber exists, and the part which the said absorber does not exist and the surface of the said leak preventer exists exist in any one of Claims 1-16 The absorbent article as described.   The absorbent article according to any one of claims 1 to 17, wherein the absorbent body has a thick portion and a thin portion.   The absorbent article according to any one of claims 1 to 18, wherein when the leak preventer is worn, at least in the crotch, the leak preventer has a convex shape on the lower side. An absorbent article manufacturing method for manufacturing the absorbent article according to any one of claims 1 to 19,
Forming each of the body contact part and the body non-contact part;
Then, the manufacturing method of an absorbent article which has the process of couple | bonding the said body contact part and the said body non-contact part.