JP6057412B2 - Pants-type disposable diaper - Google Patents

Description

  The present invention relates to a pants-type disposable diaper that can easily adjust the fit around a leg.

  The pants-type disposable diaper includes an exterior body that extends from the wearer's abdomen to the back through the crotch, and an interior body that includes an absorbent body that is fixed to the inner surface of the exterior body. By joining the both side edges and the both side edges on the back side of the exterior body, a waist opening and a pair of left and right leg openings are formed. Moreover, in a pants-type disposable diaper, in order to improve fit, it is common to provide elastic elastic members, such as a rubber thread, in a leg periphery part and a trunk periphery part, for example (for example, patent document 1). reference).

  However, the improvement in fit by the elastic stretchable member cannot cope with the size adjustment exceeding the stretchability of the elastic stretchable member. Of course, changing the size of the diaper itself (M size to L size, etc.) can be considered, but for example, wearers with narrow legs compared to the waistline often choose products based on the degree of tightening of the waist. As a result, there is a problem in that a gap is generated around the leg and leakage is likely to occur.

  In order to solve the problems of such a pants-type disposable diaper, the front end and the rear end of the tubular waistline and the abdomen and back sides of the waistline were made detachable. What consists of an absorption part is known (refer patent document 2, 3).

  The thing of patent document 2 is a thing with a higher degree of freedom of adjustment than the thing of patent document 3 by the point which can attach or detach both front and back sides.

  However, in the thing of patent document 2, since support of an absorption part is made only by the attachment / detachment part with respect to a trunk part, when adjusting the attachment position of an absorption part, it is necessary to always perform adjustment work in the state which supported the absorption part. Yes, adjustment work is not easy. Moreover, in the thing of patent document 2, adjustment work is difficult also in the point which attaches or detaches an absorption part inside a trunk part.

JP 2006-043415 A JP 2002-641 A JP 2011-30790 A

  Then, the main subject of this invention is providing the underpants type disposable diaper which can adjust the fitting property around a leg easily.

The present invention that has solved the above problems is as follows.
<Invention of Claim 1>
An exterior body extending from the wearer's abdomen through the crotch to the back,
Provided with an interior body including an absorbent body provided inside the exterior body,
In the pants-type disposable diaper in which the side edges on the ventral side of the exterior body and the side edges on the back side of the exterior body are joined to form a waist opening and a pair of left and right leg openings,
In the abdominal width direction intermediate part and the back side width direction intermediate part in the exterior body, a ventral interior body penetration part and a back side interior body penetration part that penetrate inside and outside are formed, respectively.
Removable parts that can be attached to and detached from the outer surface of the exterior body are provided on the front end surface and the rear end surface of the interior body,
The front and rear sides of the interior body extend from the inside of the exterior body through the abdominal interior body penetration part and the back side interior body penetration part to the outside of the exterior body, and the front end part and the rear end part thereof. Are attached to and detached from the outer surface of the exterior body,
In the middle in the front-rear direction and in the middle in the width direction on the front side and the rear side of the interior body, a punching portion is provided,
A pants-type disposable diaper characterized by that.

(Function and effect)
In the present invention, the fit around the leg (the diameter of the leg opening) can be adjusted by changing the position of the attaching / detaching portion of the interior body in the front-rear direction. Specifically, the fit around the legs can be loosened by lowering the position of the attachment / detachment part of the interior body to the crotch part side, and the fit around the legs can be tightened by raising it to the side opposite to the crotch part side it can.

Then, based on the structure in which the interior body is provided inside the exterior body, the front side and the rear side of the interior body pass from the inside of the exterior body through the abdominal interior body penetration part and the back side interior body penetration part. The outer body is extended to the outside, and the front and rear end detachable parts are attached to and detached from the outer surface of the exterior body. Since it is supported by the body, it is possible to easily adjust the position of the interior body. Moreover, since the attaching / detaching portion of the interior body is exposed to the outside of the exterior body, it can be easily adjusted without putting a hand into the exterior body.
In particular, when such a perforated portion is provided, when the front and rear end portions of the interior body are grasped and pulled up, the periphery of the perforated portion is deformed into a mountain shape and the widthwise side portions of the interior body are widened. It can pull up rather than a direction middle part, and the fit nature to the circumference of a leg can be improved further.

<Invention of Claim 2>
The exterior body includes a first exterior body that forms an intermediate region in the front-rear direction including the crotch portion, and a position that overlaps the front end portion of the first exterior body and a position that overlaps the front region and the rear end portion of the first exterior body. A pair of second exterior bodies that respectively form a region on the side,
The second exterior body is joined to the inner surface of the first exterior body on both sides of the intermediate portion in the width direction in the portion where the front and rear end portions of the first exterior body overlap with the second exterior body, and the width direction The intermediate part forms the ventral interior body penetration part and the back interior body penetration part without joining the first exterior body and the second exterior body,
The pants-type disposable diaper according to claim 1.

(Function and effect)
As described above, when the exterior body is divided into three in the front-rear direction, the seam is formed with the first exterior body as the outer surface side, and the interior body penetration portion is formed with the middle in the width direction of the seam being non-joined, the top of the first exterior body In addition, there is an advantage that a product in which the interior body is passed through the interior body penetration portion in advance can be easily manufactured by laminating the interior body and further sticking the second exterior body thereon. Moreover, since the crotch part side part of a 2nd exterior body extends on an interior body, there also exists an advantage by which the shielding wall which prevents the movement of excrement is formed in front and back of an interior body by this part.

<Invention of Claim 3>
The pants-type disposable diaper according to claim 1 or 2, wherein the exterior body and the interior body are joined at a crotch portion.

(Function and effect)
By joining the exterior body and the interior body in this manner, the exterior body is less likely to be biased toward the front side or the rear side even when the position adjustment such as pulling up or down the interior body is performed.

<Invention of Claim 4 >
An exterior body extending from the wearer's abdomen through the crotch to the back,
Provided with an interior body including an absorbent body provided inside the exterior body,
In the pants-type disposable diaper in which the side edges on the ventral side of the exterior body and the side edges on the back side of the exterior body are joined to form a waist opening and a pair of left and right leg openings,
In the abdominal width direction intermediate part and the back side width direction intermediate part in the exterior body, a ventral interior body penetration part and a back side interior body penetration part that penetrate inside and outside are formed, respectively.
Removable parts that can be attached to and detached from the outer surface of the exterior body are provided on the front end surface and the rear end surface of the interior body,
The front and rear sides of the interior body extend from the inside of the exterior body through the abdominal interior body penetration part and the back side interior body penetration part to the outside of the exterior body, and the front end part and the rear end part thereof. Are attached to and detached from the outer surface of the exterior body,
Stretch sheets that elastically expand and contract in the front-rear direction are provided on both sides in the width direction on the back surface of the interior body and intermediate portions therebetween, and the stretch sheets on both sides in the width direction are stretch sheets in the middle portion in the width direction. It is harder to stretch in the front-rear direction than
A pants-type disposable diaper characterized by that .

(Function and effect)
In this way, by making the widthwise side portions of the interior body less likely to extend than the widthwise intermediate portion, when grasping and pulling up the front and rear end portions of the interior body, the widthwise side portions of the interior body are more than the widthwise intermediate portion. It can be pulled up, and the fit to the legs can be further improved.

<Invention of Claim 5 >
An exterior body extending from the wearer's abdomen through the crotch to the back,
Provided with an interior body including an absorbent body provided inside the exterior body,
In the pants-type disposable diaper in which the side edges on the ventral side of the exterior body and the side edges on the back side of the exterior body are joined to form a waist opening and a pair of left and right leg openings,
In the abdominal width direction intermediate part and the back side width direction intermediate part in the exterior body, a ventral interior body penetration part and a back side interior body penetration part that penetrate inside and outside are formed, respectively.
Removable parts that can be attached to and detached from the outer surface of the exterior body are provided on the front end surface and the rear end surface of the interior body,
The front and rear sides of the interior body extend from the inside of the exterior body through the abdominal interior body penetration part and the back side interior body penetration part to the outside of the exterior body, and the front end part and the rear end part thereof. Are attached to and detached from the outer surface of the exterior body,
The crotch part side of the ventral interior body penetrating part and the front side of the interior body, and the crotch part side of the back side interior body penetrating part and the rear side of the interior body can be elastically stretched in the front-rear direction, respectively. Connected by a connecting member,
A pants-type disposable diaper characterized by that .

(Function and effect)
In this way, the exterior body and the interior body are connected to the front and rear sides by connecting members that can be elastically expanded and contracted in the front-rear direction, so that the exterior body can be moved to the front side or the rear side even if the interior body is pulled up or down. It becomes difficult to be biased or bumpy. In addition, tightening around the legs is accompanied by elasticity.

<Invention of Claim 6 >
An exterior body extending from the wearer's abdomen through the crotch to the back,
Provided with an interior body including an absorbent body provided inside the exterior body,
In the pants-type disposable diaper in which the side edges on the ventral side of the exterior body and the side edges on the back side of the exterior body are joined to form a waist opening and a pair of left and right leg openings,
In the abdominal width direction intermediate part and the back side width direction intermediate part in the exterior body, a ventral interior body penetration part and a back side interior body penetration part that penetrate inside and outside are formed, respectively.
Removable parts that can be attached to and detached from the outer surface of the exterior body are provided on the front end surface and the rear end surface of the interior body,
The front and rear sides of the interior body extend from the inside of the exterior body through the abdominal interior body penetration part and the back side interior body penetration part to the outside of the exterior body, and the front end part and the rear end part thereof. Are attached to and detached from the outer surface of the exterior body,
Near the crotch side of the ventral interior body penetration part and the back interior body penetration part in the exterior body, the penetration part lower elastic member is fixed in a state of extending in the width direction,
A pants-type disposable diaper characterized by that .

(Function and effect)
By providing such a penetrating portion lower elastic member, it is possible to prevent the lower edge of the penetrating portion from opening forward and the appearance to deteriorate.

<Invention of Claim 7 >
Narrower portions having a narrower width than the front and rear sides are provided at the front end portion and the rear end portion of the interior body, and the widths of the ventral interior body penetration portion and the back interior body penetration portion are both front and rear sides of the narrow portion. narrower than, pants-type disposable diaper according to any one of claims 1-6.

(Function and effect)
In the present invention, the interior body may fall off from the exterior body. However, by providing such a constricted portion and hooking the interior body through portion, it is possible to prevent such an interior body from falling off. .

<Invention of Claim 8 >
An exterior body extending from the wearer's abdomen through the crotch to the back,
Provided with an interior body including an absorbent body provided inside the exterior body,
In the pants-type disposable diaper in which the side edges on the ventral side of the exterior body and the side edges on the back side of the exterior body are joined to form a waist opening and a pair of left and right leg openings,
In the abdominal width direction intermediate part and the back side width direction intermediate part in the exterior body, a ventral interior body penetration part and a back side interior body penetration part that penetrate inside and outside are formed, respectively.
Removable parts that can be attached to and detached from the outer surface of the exterior body are provided on the front end surface and the rear end surface of the interior body,
The front and rear sides of the interior body extend from the inside of the exterior body through the abdominal interior body penetration part and the back side interior body penetration part to the outside of the exterior body, and the front end part and the rear end part thereof. Are attached to and detached from the outer surface of the exterior body,
The interior body is divided into a plurality of parts in the width direction on the front side from the crotch part and the rear side from the crotch part, and the detachable part is provided in each divided part.
A pants-type disposable diaper characterized by that .

(Function and effect)
In this case, it is possible to appropriately adjust the fitting properties on the left leg side and the right leg side by individually moving each divided portion.

  As described above, according to the present invention, there are advantages such as the ability to easily adjust the fit around the legs.

It is a top view (inner surface side) of the underpants type disposable diaper of a deployment state. It is a top view (outer surface side) of the underpants type disposable diaper of a deployment state. It is an exploded view of main parts. It is CC sectional drawing of FIG. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is a perspective view of the wearing state of a pants type disposable diaper. It is a longitudinal cross-sectional view which shows the position change of an interior body roughly. It is a top view (outer surface side) of an interior body. It is a top view (outer surface side) of an interior body. It is a top view (outer surface side) of the underpants type disposable diaper of a deployment state. It is a longitudinal cross-sectional view which shows the position change of an interior body roughly. It is a top view (outer surface side) of the underpants type disposable diaper of a deployment state. It is a top view (outer surface side) of an interior body.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
1-7 has shown the underpants type disposable diaper of embodiment. This pants-type disposable diaper (hereinafter also simply referred to as a diaper) includes an exterior body 20 that extends from the wearer's abdomen through the crotch to the back side, and an interior body 10 provided on the inner surface side of the exterior body 20. And the both side edges 21 on the ventral side of the exterior body and the both side edges 22 on the back side of the exterior body are joined to form a waist opening and a pair of left and right leg openings. is there. The interior body 10 has an absorbent body 13 interposed between a liquid-permeable top sheet 11 and a liquid-impermeable back side sheet 12.

(External body structure example)
In the illustrated embodiment, the exterior bodies 20, 50, and 60 include a first exterior body 20 that forms an intermediate region in the front-rear direction including the crotch portion, a region on the front side from the position overlapping the front end portion of the first exterior body 20, and the first exterior. It consists of a pair of 2nd exterior bodies 50 and 60 which form the field of the back side from the position which overlaps with the rear end part of body 20, respectively.

  As shown in FIGS. 4 to 6, the exterior bodies 20, 50, and 60 are two-layer nonwoven fabric sheets each composed of an upper layer nonwoven fabric 20 </ b> A, 50 </ b> A, 60 </ b> A and a lower layer nonwoven fabric 20 </ b> B, 50 </ b> B, 60 </ b> B. Various elastic members are disposed between 20A, 50A, 60A and the lower layer nonwoven fabrics 20B, 50B, 60B, and between the nonwoven fabrics of the folded portions 50C, 60C formed by folding the lower layer nonwoven fabrics 50B, 60B to the inner surface side at the waist opening edges. The elasticity is given. The planar shape has a pseudo hourglass shape as a whole by the concave leg periphery lines 29 formed to form the leg openings on the both sides of the middle. In addition, the dot pattern in FIG. 4, and the cross mark part in FIG.5 and FIG.6 have shown the junction part by hot-melt-adhesive etc. FIG.

  In the exterior bodies 20, 50, 60 of the illustrated form, as the elastic member, in the developed shape shown in FIGS. 1 and 2, the waist elastic member 24 disposed in the vicinity of the waist opening 23, the front body F, and the rear The body B has a plurality of waist lower elastic members 25 arranged along the width direction at intervals in the vertical direction, and the waist lower elastic member group 25 in each of the front body F and the back body B Separately, from both side joint edges joining the front body F and the back body B to the opposite body side as it goes to the center in the width direction, up to a portion overlapping with both side parts of the interior body 10 (or both side parts) The curved elastic members 26 and 28 are provided so as to extend and do not cross each other and are spaced apart from each other. In addition, in this exterior | packing body 20,50,60, what is called a leg periphery elastic member which continues substantially along the leg periphery line 29 is not provided.

  The waist elastic member 24 includes a plurality of strips arranged in the vertical direction in the vicinity of the waist opening edge in the range of the side joint edges 21 and 22 where the front body F and the back body B are joined. It is an elongated elastic member such as rubber thread, for attaching a diaper to the body by applying an expansion / contraction force so as to tighten around the waist of the body. For the waist elastic member 24, rubber thread is used in the illustrated example. However, for example, a tape-like elastic member may be used. Moreover, although the waist part elastic member 24 of the illustration form is pinched | interposed between the nonwoven fabrics of the folding | returning parts 50C and 60C of the lower layer nonwoven fabrics 50B and 60B in a waist part, between upper layer nonwoven fabrics 50A and 60A and lower layer nonwoven fabrics 50B and 60B It may be held between.

  The waist lower elastic member 25 is an elongated shape such as a rubber thread disposed along the width direction at intervals in the vertical direction over the range from the upper part to the lower part of the side joining edges 21 and 22. It is an elastic member, and applies elastic force in the width direction to the lower waist portions of the front body F and the back body B, respectively, to bring the diaper into close contact with the body. Note that the boundary between the waist elastic member 24 and the waist lower elastic member 25 is not necessarily clear. For example, among the elastic members arranged in the width direction with an interval in the vertical direction on the front body F and the back body B, even if the number cannot be specified, several on the upper side function as the waist elastic members. The remaining elastic member only needs to function as a waist lower elastic member.

  In the back body B, the dorsal curved elastic member 26 arranged separately from the waist lower elastic member 25 is arranged along a predetermined curve along the leg-around line 29. There may be one dorsal curved elastic member 26, but it is preferable that there are a plurality of dorsal curved elastic members 26. In the illustrated example, the elastic elastic members 26 are elongated elastic members such as rubber thread, and these dorsal curved elastic members 26 intersect each other. There are no gaps. This dorsal curved elastic member group 26 is not arranged as a bundle of about two or three elastic elastic members with a close interval, but rather 3 to 20 mm so as to form a predetermined elastic zone. Preferably, two or more, preferably five or more are arranged with an interval of about 6 to 16 mm.

  In the front body F of the exterior body 20, the abdomen curved elastic member 28 arranged separately from the waist lower elastic member group 25 is also arranged along a predetermined curve along the leg circumference line 29. There may be one ventral curved elastic member 28, but a plurality of ventral curved elastic members 28 are preferable. In the illustrated example, the elastic elastic member 28 is an elongated elastic member such as rubber thread, and these ventral curved elastic members 28 intersect each other. Without being spaced apart. This ventral curved elastic member group 28 is also arranged not to arrange about a few elastic elastic members as a single bundle with a close interval, but to form a predetermined elastic zone 3 to 20 mm. Preferably, 3 or more, preferably 5 or more are arranged with an interval of about 6 to 16 mm.

  In the illustrated example, the waist lower elastic member 25 and the curved elastic members 26 and 28 arranged in the front body F and the back body B are not provided in a portion crossing the interior body 10, and the portions are not stretched. It is an area. Thus, the form which does not have or is not provided with the elastic member includes the form in which the elastic member is present, but also the form in which the elastic member is present but is finely cut to the extent that the contraction force does not act. For example, as the latter example, the waist lower elastic member 25 and the curved elastic members 26, 28 are continuous from the side joint edge 22 on one side to the side joint edge 22 on the other (opposite) side across the interior body 10. Thus, a general form in which a part or all of the portion crossing the interior body 10 is cut and discontinuous is included. By making the elastic member discontinuous at the portion overlapping the interior body 10, it is possible to further prevent the interior body (particularly, the absorbent body 13) from contracting in the width direction. Of course, the waist lower elastic member 25 and the curved elastic members 26 and 28 can also be disposed continuously across the interior body 10.

  The exterior body 20 mentioned above can be manufactured by the technique of Unexamined-Japanese-Patent No. 4-28363 or Unexamined-Japanese-Patent No. 11-332913, for example. Moreover, in order to cut | disconnect the curved elastic members 26 and 28 on the interior body 10, it describes in Unexamined-Japanese-Patent No. 2002-35029, Unexamined-Japanese-Patent No. 2002-178428, and Unexamined-Japanese-Patent No. 2002-273808. A cutting method is preferably employed.

  Unlike the illustrated example, the curved elastic member may be provided only on one of the front body F and the back body B. Further, when the curved elastic members 26 and 28 are provided on both the front body F and the back body B, the curved elastic members 26 and 28 are disposed on a part or all of the group of the curved elastic members disposed on the front body F side and the back body B side. Although a form (not shown) in which a part or all of the group of curved elastic members B intersected can be adopted, the group of curved elastic members 28 arranged on the front body F side, as shown in the example, A configuration in which the curved elastic members B arranged on the body B side are separated from each other in the longitudinal direction at a position slightly deviated from the front-rear intermediate portion, particularly the front body F without crossing each other is preferable. It is preferable that the minimum longitudinal separation distance in the direction separation range is about 10 to 15 mm, and a wide fixed region described later is provided in this portion.

  Further, the curved elastic members 26 and 28 may not be entirely curved as in the illustrated example, and may partially have a linear portion.

(Structural example of interior body)
As shown in FIGS. 5 to 7, the interior body 10 has an absorbent body 13 interposed between a liquid-permeable top sheet 11 made of a nonwoven fabric or the like and a liquid-impermeable back side sheet 12 made of polyethylene or the like. The excretory fluid that has permeated through the top sheet 11 is absorbed and retained.

  As the liquid-permeable surface sheet 11 covering the surface side (skin contact surface side) of the absorbent body 13, a porous or non-porous nonwoven fabric or a porous plastic sheet is preferably used. The material fibers that make up the nonwoven fabric can be synthetic fibers such as olefins such as polyethylene or polypropylene, polyesters, and polyamides, recycled fibers such as rayon and cupra, and natural fibers such as cotton. A nonwoven fabric obtained by an appropriate processing method such as a spun bond method, a thermal bond method, a melt blown method, or a needle punch method can be used. Among these processing methods, the spunlace method is excellent in terms of flexibility and drapeability, and the thermal bond method is excellent in terms of being bulky and soft. When a large number of through holes are formed in the liquid permeable surface sheet 11, urine and the like are quickly absorbed, and the dry touch property is excellent. The liquid permeable top sheet 11 is wound around the side edge of the absorber 13 and extends to the back side of the absorber 13.

  As the liquid-impermeable back sheet 12 that covers the back surface side (non-skin contact surface side) of the absorbent body 13, a liquid-impermeable plastic sheet such as polyethylene or polypropylene is used. Those having wettability are preferably used. This water-impervious / breathable sheet is a microporous sheet obtained by, for example, melt-kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene to form a sheet, and then stretching in a uniaxial or biaxial direction. is there.

  Absorbent body 13 is a known one, for example, a pulp fiber stack, a filament aggregate such as cellulose acetate, or a non-woven fabric, mixed with a superabsorbent polymer as necessary, fixed, etc. In the example shown in the figure, a shape formed with a substantially rectangular planar shape is used, and the width dimension is a dimension width that does not give the wearer a feeling of goreness by hitting the crotch part. The absorbent body 13 can be packaged with a wrapping sheet 14 having liquid permeability and liquid retention, such as crepe paper, if necessary, for holding the shape and polymer. The shape of the absorber 13 may be a rectangular shape as shown in the figure, or may be an hourglass shape (constricted shape) in which the width of the crotch portion is narrower than the back side and the abdominal side.

  It is preferable that solid gather BSs that fit around the legs are formed on both sides of the interior body 10. This three-dimensional gathered BS is formed by the gathered nonwoven fabric 15. As the gathered nonwoven fabric, as shown in FIG. 6 and FIG. 7, a nonwoven fabric made into a double sheet by folding is preferably used. The side edge portion of the wound absorbent body 13 is further wound from the upper side thereof and extends to the back surface side of the absorbent body 13 to be bonded. More specifically, the gathered nonwoven fabric 15 has a three-dimensional gather BS forming portion left in the middle part in the longitudinal direction of the diaper, and a range from the middle part in the width direction to the back side of the absorbent body 13 is bonded by a hot melt adhesive or the like. In addition, at the front and rear end portions in the longitudinal direction, the section from the intermediate portion in the width direction to the one side end edge is bonded in a range extending to the back surface side of the absorber 13, and the portion forming the three-dimensional gather BS is the upper surface of the absorber 13 It is bonded with a hot melt adhesive or the like while being folded at the part.

  Inside the gathered nonwoven fabric 15 formed of a double sheet nonwoven fabric, a plurality of thread-like elastic elastic members 16, 16... The thread-like elastic stretch members 16, 16... Are for forming a three-dimensional gather BS by raising the nonwoven fabric portion protruding from the absorber side edge by elastic stretch force as shown by a two-dot chain line in FIG. It is.

  The liquid-impermeable back side sheet 12 enters the inside of the double sheet-like gathered nonwoven fabric 15 and constitutes a leak-proof wall on the lower end side of the three-dimensional gathered BS as shown in FIG. . As the liquid-impermeable back side sheet 12, it is desirable to use an opaque sheet so that brown such as defecation and urine does not appear. As the opacification, a plastic film and a pigment and filler such as calcium carbonate, titanium oxide, zinc oxide, white carbon, clay, talc and barium sulfate are preferably used.

  As the thread-like elastic elastic member 16, materials such as styrene rubber, olefin rubber, urethane rubber, ester rubber, polyurethane, polyethylene, polystyrene, styrene butadiene, silicon, polyester, and the like that are usually used can be used. In order to make it difficult to see from the outside, it is preferable that the thickness is 925 dtex or less, the tension is 150 to 350%, and the interval is 7.0 mm or less. Instead of the thread-like elastic elastic member, a tape-like elastic elastic member having a certain width may be used.

  In the same manner as the liquid-permeable surface sheet 11, the material fibers constituting the gathered nonwoven fabric 15 are olefin-based, polyester-based, amide-based synthetic fibers such as polyethylene or polypropylene, regenerated fibers such as rayon and cupra, and cotton. Non-woven fabric obtained by an appropriate processing method such as a spunbond method, a thermal bond method, a melt blown method, a needle punch method, etc. can be used. It is preferable to use a nonwoven fabric that suppresses the basis weight and has excellent air permeability. Furthermore, for the gathered nonwoven fabric 15, in order to prevent the transmission of urine and the like, to prevent fogging, and to enhance the touch to the skin (dry feeling), silicon-based, paraffin metal-based, alkylchromic croid-based water repellent, etc. It is desirable to use a water-repellent non-woven fabric coated with.

(Removal between interior and exterior)
Characteristically, an abdominal-side interior body penetration part 71 and a back-side interior body penetration part 72 penetrating inward and outward are respectively provided in the abdominal side width direction intermediate part and the back side width direction intermediate part of the exterior bodies 20, 50, 60. The detachable portions 73 that are detachably attached to the outer surfaces of the exterior bodies 20, 50, 60 are respectively provided on the front end surface and the rear end surface of the interior body 10. The rear side extends from the inside of the exterior body 20, 50, 60 through the abdomen interior body penetration part 71 and the back side interior body penetration part 72 to the outside of the exterior body 20, 50, 60, respectively, Each attaching / detaching portion 73 at the rear end is attached to and detached from the outer surface of the exterior body 20, 50, 60. The detachable part 73 can be provided by an adhesive layer or a male material (hook tape) of a surface fastener (mechanical fastener).

  Thereby, the fitting property around the legs can be adjusted by changing the position of the detachable portion 73 of the interior body 10 in the front-rear direction. Specifically, as shown in FIG. 8A, the fit around the legs can be loosened by lowering the position of the attaching / detaching portion 73 of the interior body 10 toward the crotch portion, as shown in FIG. 8B. As described above, it is possible to tighten the fit around the legs by raising the crotch part to the opposite side. Further, based on the structure in which the interior body 10 is provided inside the exterior bodies 20, 50, 60, the front side and the rear side of the interior body 10 are arranged from the inside of the exterior bodies 20, 50, 60 to the abdominal interior body penetration part 71. And through the back-side interior body penetrating portion 72 and extending to the outside of the exterior body 20, 50, 60, respectively, and the detachable portions 73 of the front end portion and the rear end portion are attached to and detached from the outer surface of the exterior body 20, 50, 60. With this structure, the interior body 10 is supported by the exterior bodies 20, 50, 60 even when all the attachment / detachment portions 73 of the interior body 10 are removed, so that the position adjustment work of the interior body 10 can be easily performed. It can be carried out. Furthermore, since the detachable portion 73 of the interior body 10 is exposed outside the exterior bodies 20, 50, 60, it can be easily adjusted without putting a hand into the exterior bodies 20, 50, 60.

  In order to form the abdominal interior body penetration part 71 and the back side interior body penetration part 72, in the illustrated example, the front and rear end parts of the first exterior body 20 and the second exterior bodies 50 and 60 overlap. Among them, the second exterior bodies 50 and 60 are joined to the inner surface of the first exterior body 20 on both sides of the width direction intermediate portion (in the figure, this joining portion is indicated by reference numeral 74), and the width direction intermediate portion is the first portion. The 1 exterior body 20 and the 2nd exterior bodies 50 and 60 are not joined but comprise the ventral interior body penetration part 71 and the back interior body penetration part 72. In this way, the exterior bodies 20, 50, 60 are divided into three in the front-rear direction, the seam is formed with the first exterior body 20 as the outer surface side, and the middle of the seam in the width direction is not joined, When each of the back side interior body penetrating portions 72 is formed, as shown in FIG. 3, the interior body 10 is laminated on the first exterior body 20, and the second exterior bodies 50, 60 are pasted thereon. Thus, there is an advantage that a product in which the interior body 10 is passed through the abdominal interior body penetration part 71 and the back side interior body penetration part 72 in advance can be easily manufactured. Moreover, since the crotch part side part of the 2nd exterior bodies 50 and 60 is extended on the interior body 10, there also exists an advantage by which the shielding wall which prevents the movement of excrement is formed in the front and back of the interior body 10 by this part. . Of course, the exterior bodies 20, 50, 60 can be integrally formed, and slits can be formed at predetermined portions thereof to form the ventral interior body penetration part 71 and the back interior body penetration part 72 (not shown).

  The exterior bodies 20, 50, 60 and the interior body 10 do not have to be joined except at the attachment / detachment portion 73, but when joined by a hot melt adhesive or the like at an appropriate place such as the crotch portion as shown in the figure (this figure shows this The joint portion is indicated by reference numeral 75), and even if the position adjustment such as pulling up or pulling down the interior body 10 is performed, the exterior bodies 20, 50, 60 are not easily biased to the front side or the rear side, and do not easily bump. preferable.

  Further, instead of or together with the joining of the exterior bodies 20, 50, 60 and the interior body 10, as shown in FIGS. 11 and 12, the crotch part side of the abdominal interior body penetration part 71 and the interior body 10. It is also preferable that the front side and the crotch part side of the back-side interior body penetrating portion 72 and the rear side of the interior body 10 are connected by a connecting member 80 that can be elastically expanded and contracted in the front-rear direction. Also in this case, the exterior body 20, 50, 60 and the interior body 10 are connected to the front and rear sides by a connecting member 80 that can be elastically expanded and contracted in the front-rear direction, thereby adjusting the position of the interior body 10 such as pulling up or down. However, the exterior bodies 20, 50, 60 are less likely to be biased or bumped forward or rearward. In addition, tightening around the legs is accompanied by elasticity. The dimensions and shape of the connecting member 80 can be determined as appropriate. In addition to using a sheet-like member having the same width as the interior body 10 as shown in the figure, a plurality of elongated strip members are provided at intervals in the width direction. You can also.

  Moreover, as shown in FIG. 13, it penetrates in the crotch side vicinity of the abdominal side interior body penetration part 71 and the back side interior body penetration part 72 in the exterior bodies 20, 50, 60 (first exterior body 20 in the illustrated example). It is also a preferable form that the subordinate elastic member 27 is fixed in a state of extending in the width direction. By providing such a penetrating portion lower elastic member 27, it is possible to prevent the lower edge of the penetrating portion from opening forward and the appearance to deteriorate. As the penetrating portion lower elastic member 27, a slender elastic member such as a thread can be used, and one or a plurality of elastic members can be provided. In addition, although the example shown in FIG. 13 provides the constriction part in the interior body 10, etc., the structure which concerns on this constriction part etc. is not essential regarding providing the penetration part lower elastic member 27. FIG.

  On the other hand, in the present invention, when the position adjustment of the interior body 10 is performed, both side portions in the width direction of the interior body 10 may hang down compared to the center portion in the width direction. In order to solve this, the following structure is proposed.

  That is, as shown in FIG. 9, the first structure has the punched-out portion 17 in the middle in the front-rear direction and in the middle in the width direction on the front side and the rear side of the interior body 10 (near the crotch side of the attaching / detaching portion 73 in the illustrated embodiment). It is provided. When such a perforated portion 17 is provided, when the front and rear end portions of the interior body 10 are grasped and pulled up, the periphery of the perforated portion 17 is deformed into a mountain shape as shown by a dotted line in FIG. Moreover, the width direction both side parts of the interior body 10 can be pulled up rather than the width direction intermediate part, and the fitting property with respect to the leg periphery can be further improved. The shape of the punched-through portion 17 is not particularly limited, and may be a circular shape or the like in addition to a rectangular shape as illustrated.

  As shown in FIG. 10, the second structure is provided with elastic sheets 18C and 18S that elastically expand and contract in the front-rear direction on both sides in the width direction on the back surface of the interior body 10 and an intermediate portion therebetween, In addition, the stretchable sheet 18S on both sides in the width direction is less likely to extend in the front-rear direction than the stretchable sheet 18C in the middle in the width direction. In this way, by making the both sides in the width direction of the interior body 10 less likely to extend than the middle portion in the width direction, when grasping and pulling up the front and rear end portions of the interior body 10, It can pull up rather than a part, and the fit property with respect to the leg periphery can be improved further.

  In the third structure, as shown in FIG. 14, the interior body 10 is divided into a plurality of portions 10C and 10S in the width direction by cuts 10d on the front side from the crotch part and the rear side from the crotch part, and The portions 10C and 10S are provided with an attaching / detaching portion 73. In this case, by individually moving the divided portions 10C and 10S, as shown by a two-dot chain line in FIG. 14, the fit on the left leg side and the right leg side can be appropriately adjusted. In the illustrated example, the number of divisions is three, but it may be two or four or more. In the illustrated example, the absorbent body 13 is also divided into a plurality of portions 13C and 13S with an interval in the width direction at the front side from the crotch portion and the rear side from the crotch portion, but is not divided at the crotch portion. It is continuous in the width direction.

  The length in the front-rear direction of the interior body 10 is not particularly limited as long as the length in the front-rear direction between the attachment and detachment portions 73 is longer than the abdominal-side interior body penetration part 71 and the back-side interior body penetration part 72. Less than full length. The width of the ventral interior body penetration part 71 and the back side interior body penetration part 72 is the same as the width of the interior body 10 and can be narrowed or widened. Is preferable because it is difficult to fall out from the ventral interior body penetration portion 71 and the back interior body penetration portion 72. Further developed, as shown in FIG. 13, a narrowed portion 19 having a narrower width than the front and rear sides is provided at the front end portion and the rear end portion of the interior body 10, so that the abdominal interior body penetration portion 71 and the back side interior portion are provided. If the width of the body penetration part 72 is made narrower than the front and rear sides of the constricted part 19, the constricted part is caught by the abdominal interior body penetration part 71 and the back side interior body penetration part 72. Can be prevented.

  Further, the length of the absorbent body 13 in the front-rear direction is shortened as in the illustrated embodiment, and the front and rear portions of the interior body 10, particularly the abdominal interior body penetration part 71 and the back interior body penetration part 72 in the product state. If it is configured as a flap portion EF (see FIG. 4) without providing the absorber 13 in the portion that passes through and extends outside the outer body 20, 50, 60, the thickness does not increase unnecessarily in the product state. Moreover, since it becomes easy to hold the front-and-rear end part of the interior body 10, it is preferable. Further, when such a flap portion is provided, the punching portion 17 is provided in the flap portion EF as shown in FIG. 9, or the cut portion 10d is provided in the flap portion EF when the cut 10d is provided as in the example shown in FIG. When it is provided, the advantage of facilitating manufacture is brought about.

  The present invention can be used in a pants-type disposable diaper as in the above example.

  B ... Back body, F ... Front body, 10 ... Interior body, 11 ... Liquid permeable top sheet, 12 ... Liquid impervious back side sheet, 13 ... Absorber, 14 ... Packaging sheet, 15 ... Gathered nonwoven fabric, 16 ... Thread-like elastic expansion and contraction member, 17 ... punched-through part, 19 ... constricted part, 20, 50, 60 ... exterior body, 20 ... first exterior body, 21, 22 ... side joint edge, 24 ... waist part elastic member, 25 ... Waist lower elastic member, 26 ... dorsal curved elastic member, 27 ... penetrating lower elastic member, 28 ... ventral curved elastic member, 29 ... leg circumference line, 50, 60 ... second exterior body, 50C, 60C ... exterior body folded back 71, a ventral interior body penetrating part, 72 ... a dorsal interior body penetrating part, 73 ... an attaching / detaching part, 80 ... a connecting member.

Claims (8)

An exterior body extending from the wearer's abdomen through the crotch to the back,
Provided with an interior body including an absorbent body provided inside the exterior body,
In the pants-type disposable diaper in which the side edges on the ventral side of the exterior body and the side edges on the back side of the exterior body are joined to form a waist opening and a pair of left and right leg openings,
In the abdominal width direction intermediate part and the back side width direction intermediate part in the exterior body, a ventral interior body penetration part and a back side interior body penetration part that penetrate inside and outside are formed, respectively.
Removable parts that can be attached to and detached from the outer surface of the exterior body are provided on the front end surface and the rear end surface of the interior body,
The front and rear sides of the interior body extend from the inside of the exterior body through the abdominal interior body penetration part and the back side interior body penetration part to the outside of the exterior body, and the front end part and the rear end part thereof. Are attached to and detached from the outer surface of the exterior body,
In the middle in the front-rear direction and in the middle in the width direction on the front side and the rear side of the interior body, a punching portion is provided,
A pants-type disposable diaper characterized by that. The exterior body includes a first exterior body that forms an intermediate region in the front-rear direction including the crotch portion, and a position that overlaps the front end portion of the first exterior body and a position that overlaps the front region and the rear end portion of the first exterior body. A pair of second exterior bodies that respectively form a region on the side,
The second exterior body is joined to the inner surface of the first exterior body on both sides of the intermediate portion in the width direction in the portion where the front and rear end portions of the first exterior body overlap with the second exterior body, and the width direction The intermediate part forms the ventral interior body penetration part and the back interior body penetration part without joining the first exterior body and the second exterior body,
The pants-type disposable diaper according to claim 1.   The pants-type disposable diaper according to claim 1 or 2, wherein the exterior body and the interior body are joined at a crotch portion. An exterior body extending from the wearer's abdomen through the crotch to the back,
Provided with an interior body including an absorbent body provided inside the exterior body,
In the pants-type disposable diaper in which the side edges on the ventral side of the exterior body and the side edges on the back side of the exterior body are joined to form a waist opening and a pair of left and right leg openings,
In the abdominal width direction intermediate part and the back side width direction intermediate part in the exterior body, a ventral interior body penetration part and a back side interior body penetration part that penetrate inside and outside are formed, respectively.
Removable parts that can be attached to and detached from the outer surface of the exterior body are provided on the front end surface and the rear end surface of the interior body,
The front and rear sides of the interior body extend from the inside of the exterior body through the abdominal interior body penetration part and the back side interior body penetration part to the outside of the exterior body, and the front end part and the rear end part thereof. Are attached to and detached from the outer surface of the exterior body,
Stretch sheets that elastically expand and contract in the front-rear direction are provided on both sides in the width direction on the back surface of the interior body and intermediate portions therebetween, and the stretch sheets on both sides in the width direction are stretch sheets in the middle portion in the width direction. It is harder to stretch in the front-rear direction than
A pants-type disposable diaper characterized by that . An exterior body extending from the wearer's abdomen through the crotch to the back,
Provided with an interior body including an absorbent body provided inside the exterior body,
In the pants-type disposable diaper in which the side edges on the ventral side of the exterior body and the side edges on the back side of the exterior body are joined to form a waist opening and a pair of left and right leg openings,
In the abdominal width direction intermediate part and the back side width direction intermediate part in the exterior body, a ventral interior body penetration part and a back side interior body penetration part that penetrate inside and outside are formed, respectively.
Removable parts that can be attached to and detached from the outer surface of the exterior body are provided on the front end surface and the rear end surface of the interior body,
The front and rear sides of the interior body extend from the inside of the exterior body through the abdominal interior body penetration part and the back side interior body penetration part to the outside of the exterior body, and the front end part and the rear end part thereof. Are attached to and detached from the outer surface of the exterior body,
The crotch part side of the ventral interior body penetrating part and the front side of the interior body, and the crotch part side of the back side interior body penetrating part and the rear side of the interior body can be elastically stretched in the front-rear direction, respectively. Connected by a connecting member,
A pants-type disposable diaper characterized by that . An exterior body extending from the wearer's abdomen through the crotch to the back,
Provided with an interior body including an absorbent body provided inside the exterior body,
In the pants-type disposable diaper in which the side edges on the ventral side of the exterior body and the side edges on the back side of the exterior body are joined to form a waist opening and a pair of left and right leg openings,
In the abdominal width direction intermediate part and the back side width direction intermediate part in the exterior body, a ventral interior body penetration part and a back side interior body penetration part that penetrate inside and outside are formed, respectively.
Removable parts that can be attached to and detached from the outer surface of the exterior body are provided on the front end surface and the rear end surface of the interior body,
The front and rear sides of the interior body extend from the inside of the exterior body through the abdominal interior body penetration part and the back side interior body penetration part to the outside of the exterior body, and the front end part and the rear end part thereof. Are attached to and detached from the outer surface of the exterior body,
Near the crotch side of the ventral interior body penetration part and the back interior body penetration part in the exterior body, the penetration part lower elastic member is fixed in a state of extending in the width direction,
A pants-type disposable diaper characterized by that . Narrower portions having a narrower width than the front and rear sides are provided at the front end portion and the rear end portion of the interior body, and the widths of the ventral interior body penetration portion and the back interior body penetration portion are both front and rear sides of the narrow portion. narrower than, pants-type disposable diaper according to any one of claims 1-6. An exterior body extending from the wearer's abdomen through the crotch to the back,
Provided with an interior body including an absorbent body provided inside the exterior body,
In the pants-type disposable diaper in which the side edges on the ventral side of the exterior body and the side edges on the back side of the exterior body are joined to form a waist opening and a pair of left and right leg openings,
In the abdominal width direction intermediate part and the back side width direction intermediate part in the exterior body, a ventral interior body penetration part and a back side interior body penetration part that penetrate inside and outside are formed, respectively.
Removable parts that can be attached to and detached from the outer surface of the exterior body are provided on the front end surface and the rear end surface of the interior body,
The front and rear sides of the interior body extend from the inside of the exterior body through the abdominal interior body penetration part and the back side interior body penetration part to the outside of the exterior body, and the front end part and the rear end part thereof. Are attached to and detached from the outer surface of the exterior body,
The interior body is divided into a plurality of parts in the width direction on the front side from the crotch part and the rear side from the crotch part, and the detachable part is provided in each divided part.
A pants-type disposable diaper characterized by that .

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