JP2001258931A - Disposable underpants type diaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a highly fittable disposable underpants type diaper which exhibits a further slipping down preventing effect and also can sufficiently follow the movement of a wearer even when the wearer moves actively. SOLUTION: This diaper has a diaper body 10 having a top sheet 11, a back sheet 12, and an absorber 13. The diaper body 10 is divided into a belly-side section 2, a back-side section 3, and a hip joint section 4, and a waist opening 5 and leg openings 6 are formed by joining and fixing the left and right side edge sections 2a and 2b of the section 2 to those 3a and 3b of the section 3. On the peripheral edge sections of the openings 5 and 6, elastic waist members 14 and elastic leg members 15 substantially forming continuous gathers are arranged over the whole peripheries of the openings 5 and 6. In the belly-side section 2 of a girth section 7, girth gathers are formed by arranging a plurality of elastic girth members 30 in such a way that the members 30 are displaced to the hip joint section 4 side, with the displacement being made the maximum at the central part of the belly-side section 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an infant, an adult,
The present invention relates to a disposable pants-type diaper used for incontinent persons.

[0002]

2. Description of the Related Art Flat type disposable diapers using fastening means such as tape fasteners have been the mainstream of disposable diapers.
Disposable pants-type diapers that can be worn even in a standing position and can be worn are now on the market. As such a disposable pants-type diaper, for example, in JP-A-57-77304, the side edges of a pair of left and right side flaps on the abdominal side and the side edges of a pair of left and right side flaps on the back side are mutually connected. A disposable pants-type diaper in which a pair of leg openings and one waist opening are joined and fixed is disclosed. Further, the pants-type diaper is configured such that elastic members adjacent to the leg opening and the waist opening are arranged, and the openings are elasticized to fit the wearer's body shape. I have.

[0003] Such a disposable pants-type diaper is usually used as a disposable diaper which can be worn or worn by a wearer in a standing position. Useful for diapers for incontinents or adults.

[0004] And such a pants-type diaper,
It is required that the wearer himself has a good fit so that the excrement is not leaked and can be easily worn, and furthermore, the wearer's active exercise is required. It is required to have sufficient followability.

In order to respond to such a demand, the present applicant has already disclosed in Japanese Patent Publication No. 7-44945 that an elastic member substantially continuous over the periphery of a waist opening and a pair of leg openings is provided. Provision of a disposable pants-type diaper further forming a gather substantially continuous to the waist portion, the disposable pants-type diaper has a gather substantially continuous to the opening periphery and a waist gather. Because it is provided, it follows the active movement of the wearer and is hard to slip off. In addition, in addition to the above, as a disposable pants-type diaper having waist gathers, a disposable pants-type diaper in which elastic members in the waist portion are arranged on a loop, and elastic members having different elongation rates on the abdominal side and the back side may be used. Has been proposed disposable pants-type diapers.

However, the disposable pants-type diaper has a problem that the weight of the disposable pants-type diaper increases with the excretion of the wearer and it is easy to slip off. There is a problem that the older the child is, the more active the movement becomes. Therefore, there is a demand for a disposable pants-type diaper which has more responsiveness like underwear than the above-mentioned disposable pants-type diaper.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a disposable pants-type diaper that has a further effect of preventing slippage and has an excellent fit so that the wearer can sufficiently follow the active exercise. is there.

[0008]

SUMMARY OF THE INVENTION The present invention provides a main body having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber interposed between the two sheets for receiving and holding excrement. The main body is divided into an abdominal part located on the abdomen of the wearer when worn, a dorsal part located on the dorsal side, and a crotch positioned between the abdominal part and the dorsal part. A waist opening and a pair of leg openings are formed by joining and fixing the left and right side edges of each of the abdominal part and the dorsal part, respectively, and the waist opening and the pair of leg openings are formed. The waist elastic member and the leg elastic member that form a substantially continuous gather over the entire periphery of the peripheral portion are arranged, and a plurality of waist elastic members are disposed on the abdominal side of the waist around the wearer's waist when worn. Girth around gathers with waist elastic members A disposable pants-type diaper in which at least one of the waist elastic members is provided in a shape displaced toward the crotch side by providing a disposable pants-type diaper, The above object has been achieved.

[0009] Further, according to the present invention, the waist elastic member may include:
Furthermore, while providing the disposable pants-type diaper also arranged on the back side, the elastic stress of the waist elastic member arranged on the abdominal part is greater than the elastic stress of the waist elastic member arranged on the back side. The present invention provides a large disposable pants-type diaper.

[0010] The present invention also provides the disposable pants-type diaper in which a plurality of the waist elastic members are arranged in parallel without intersecting each other. Further, the present invention provides the disposable pants-type diaper, wherein the waist elastic member is continuously stretched from one side edge to the other side edge in the abdominal part. In addition, the present invention provides the disposable pants-type diaper, wherein the waist elastic member is arranged in a curved manner smoothly toward the crotch portion and is displaced toward the crotch side. Is what you do.

[0011] Further, according to the present invention, the waist elastic member may include:
An object of the present invention is to provide the disposable pants-type diaper which is disposed between the absorber and the back sheet at a portion overlapping with the absorber. Further, the present invention provides the disposable pants-type diaper in which a plurality of the waist elastic members are configured such that an elongation rate is gradually reduced from a waist opening side to a crotch side.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the disposable pants-type diaper according to the present invention will be described below in detail with reference to the accompanying drawings. In the following embodiments, a disposable pants-type diaper for an infant will be described as an example.

First, a first embodiment of a disposable pants-type diaper according to the present invention will be described with reference to FIGS.
Here, FIG. 1 is a perspective view showing a disposable pants-type diaper according to one embodiment of the present invention, and FIG. 2 is a development view of the disposable pants-type diaper shown in FIG.

A disposable pants-type diaper 1 according to the present embodiment shown in FIGS. 1 and 2 contains a liquid-permeable top sheet 11, a liquid-impermeable back sheet 12, and a waste sheet interposed between the two sheets. A main body 10 having an absorbent body 13 for holding the main body 10, the main body 10 being located on the wearer's abdomen when worn, the back side 3 being located on the back side, and the abdomen 2 and It is divided into a crotch part 4 located between the back side parts 3,
Left and right side edges 2a, 2 of the abdomen 2 and the back 3 respectively
b and 3a, 3b are fixedly joined to each other to form a waist opening 5 and a pair of leg openings 6,
The waist opening 5 and the pair of leg openings 6 are respectively provided with a waist elastic member 14 and a leg elastic member 15 which form a substantially continuous gather over the entire periphery thereof. A plurality of waist elastic members 30 are arranged on the abdominal part 2 of the waist part 7 which is sometimes located around the wearer's waist to form a waist gather.

More specifically, the absorber 13 has an overflowing hourglass shape in which a central portion in the longitudinal direction is narrowed, and the top sheet 11 and the back sheet 12 similarly have a longitudinal direction. The central part has a constricted shape.

The waist elastic member 14 and the leg elastic member 15 are fixed between the top sheet 11 and the back sheet 12 by an adhesive.

The three waist elastic members 14 are arranged in parallel along the side edges of the abdomen 2 and the back 3 and the waist opening. Further, the waist elastic member 14 is provided with side edges 2a, 3 of the abdomen 2 and the back 3.
a to the side edges 2b, 3b.

The three leg elastic members 15 are arranged in parallel in the left and right leg openings 6 from the abdominal part 2 to the back part 3 through the crotch part 4. Further, as shown in FIG. 2, the leg elastic member 15 is not locally tightened because the rubber interval is not narrow in the crotch portion 4 of the leg opening 6.

The waist elastic member 14 and the leg elastic member 15 are connected to the side edges 2a and 3a, respectively.
When the first and second side edges 2b and 3b are joined and fixed, respectively, the elastic members overlap at the joint 20 (see FIG. 1), and are substantially continuous in the waist opening 5 and the leg opening 6 in a ring shape. Are formed so as to form a gather. The formation of the ring-shaped gathers improves the fit. Similarly, the upper and lower edges of the side edges 2a, 3a and the side edges 2b, 3b are also joined so as to coincide with each other.

The tightening force of the leg elastic member 15 is preferably symmetrical with respect to the vertical center line a of the disposable diaper, and the same material is used on the left and right sides of the vertical center line a. . Since the tightening force and the elongation ratio of the elastic member to the wearer's body are equal in the left and right directions, the disposable diaper has an excellent feeling of wearing, has a beautiful appearance when worn, and has a beautiful appearance of the product. Here, the elongation rate of the elastic member indicates the degree of stretching of the elastic member, and indicates what percentage elongation when the non-elongated length is 100, and when the elongation rate is high. Means that an elastic member with a short length in a non-extended state is stretched. Conversely, when the elongation rate is low, an elastic member with a long length in a non-extended state is stretched. . Therefore, if the elongation ratio varies between the left and right, the degree of creeping of the left and right becomes uneven, and the product appearance deteriorates.

The waist elastic member 14 is similarly designed with a symmetrical tightening force and elongation rate with respect to the vertical center line a, but does not necessarily have to be symmetric with respect to the horizontal center line b. The tightening force of the waist elastic member 14 is:
It is preferably 20 to 1000 g, and the elongation rate is 12
Preferably, they are arranged at 0% to 400%. The tightening force of the leg elastic member 15 is 20 to 1000 g.
It is preferable that the elongation rate is set to 120% to 400%. In the above elongation, the elongation of 100% is the natural length of stress 0.

As shown in FIGS. 1 and 2, in the disposable pants-type diaper of the present embodiment, four of the waist elastic members 30 provided on the abdominal side are displaced toward the crotch part 4 side. It is arranged in the shape which did.

More specifically, the waist elastic member 30
Are arranged in the abdominal part 2, and the waist elastic members 30a closest to the waist opening 5 are arranged in a straight line, but the remaining four 30b, 30c, 30d and 30e are diapers. At the center in the width direction of
It is arranged curved to a smooth curve toward the crotch 4,
It is arranged in a shape displaced toward the crotch part 4 side. Further, the amount of displacement increases from the waist elastic member 30b on the waist opening 5 side to the waist elastic member 30e on the crotch side. Here, the displacement amount is a numerical value indicating how much a curved arrangement is made, and a straight line parallel to the width direction of the diaper between the side edges 2a, 3a to 2b, 3b in the waist elastic members 30a to 30e. Is a value defined by a numerical value indicating the maximum displacement of the rubber actually arranged with respect to the imaginary line connected by. In the waist elastic member 30a, the displacement amount is 0 mm.
It is.

The amount of displacement is determined by the waist elastic member 30.
It is preferable that the distance from b to the waist elastic member 30e is the same or that the distance from the waist elastic member 30b to the waist elastic member 30e increases by 20 mm or less.
Specifically, the displacement amount of the waist elastic member 30b is 5
mm, the displacement amount of the waist elastic member 30c is preferably 10 mm, the displacement amount of the waist elastic member 30d is preferably 15 mm, and the displacement amount of the waist elastic member 30e is , 20 mm.

When the amount of use of the waist elastic members 30a to 30e in one absorbent article is the same, the elongation rate of 30e is higher than that of 30a, but the elongation rate is not necessarily high because the displacement amount is large. Not necessarily. The elongation rate is the same or 30 between adjacent elastic members from the waist elastic member 30a arranged on the waist opening 5 side to the waist elastic member 30e arranged on the crotch side.
% Or less, and specifically, the elongation rate of the waist elastic member 30a is 210% or less.
%, The elongation rate of the waist elastic member 30b is preferably 200%, and the elongation rate of the waist elastic member 30c is preferably 200%.
The elongation rate of the waist elastic member 30d is preferably 180%, and the elongation rate of the waist elastic member 30e is
Preferably, it is 180%. The waist elastic members 30a to 30e are arranged in parallel without intersecting each other. The waist elastic member 30a
30e are one side edge 2 in the abdominal part 2, respectively.
a to the other side edge 2b.

The waist elastic member 30 is disposed between the top sheet 11 and the back sheet 12 as shown in FIG. It is arranged between the back sheet 12 and the seat. If it is arranged on the top sheet 11 side, the top sheet 11 may be separated from the surface of the absorber 13 and the absorption performance may be reduced. Therefore, when the waist elastic member 30 is arranged between the absorber 13 and the top sheet 11, the absorber 13 (or a mount portion surrounding the absorber 13), the top sheet 11, and the waist elastic member 30 may be used.
Need to be sufficiently adhered and fixed.

The waist elastic member 30 is used as the absorber 1
In the portion overlapping with 3, the extension ratio of the waist elastic member 30 is made lower than the extension ratio of the portion not overlapping with the absorber 13 to form a disposable pants-type diaper. Uniformly, by forming a disposable pants-type diaper without adhering the waist elastic member 30 to other members in a portion overlapping with the absorber 13,
It is preferable that the stretching force of the waist elastic member 30 is not transmitted to the absorber 13. With this configuration, since the contraction action of the rubber is not transmitted to the absorber 13, the absorber 13 is unlikely to be wrinkled, and the twist can be reduced.

Further, the waist elastic members 30 are further arranged on the back side 3, and four of them are arranged on the back side 3. The waist elastic members 30i closest to the waist opening 5 are arranged in a straight line, but the remaining three waist elastic members 30i are arranged in a straight line.
h, 30g, and 30f are arranged in a state in which the central portion in the width direction is displaced to the crotch side and is smoothly curved, and the amount of displacement increases as the distance from the waist opening 5 increases.

The change in the displacement amount is the same from the waist elastic member 30h to the waist elastic member 30f, or the change in the displacement amount is equal from the waist elastic member 30h to the waist elastic member 30f.
It is preferable that the distance increases by 30 mm or less toward f. Specifically, the displacement amount of the waist elastic member 30h is preferably 10 mm.
The displacement of 0 g is preferably 20 mm, and the displacement of the waist elastic member 30f is preferably 30 mm.

Further, the waist elastic members 30f to 30f
The elongation rate of the elastic member 30i is equal or 3 between adjacent elastic members from the waist elastic member 30i disposed on the waist opening 5 side to the waist elastic member 30f disposed on the crotch side.
It is preferable that the elongation of the waist elastic member 30i is 20% or less.
The elongation rate of the waist elastic member 30h is preferably 200%, the elongation rate of the waist elastic member 30g is preferably 180%, and the elongation rate of the waist elastic member 30f is preferably 0%. The elongation is preferably 180%. In addition, the waist elastic members 30f to 30f
30i are arranged in parallel without crossing each other. The waist elastic members 30f to 30i
Are continuously stretched from one side edge 3a to the other side edge 3b of the back side portion 3, respectively.

The average elastic stress of the waist elastic members 30a to 30e arranged on the abdominal part 2 is larger than the average elastic stress of the waist elastic members 30f to 30i arranged on the back part 3. Specifically, waist elastic members 30a to 30e
Is preferably 20 to 900 g, and the average elastic stress of the waist elastic members 30f to 30i is preferably 20 to 800 g.

In order to further improve the fit, a gradient of contraction stress can be provided from the waist elastic member 14 to the waist elastic member 30. The contraction stress is preferably designed so that the crotch portion of the waist elastic member 30 is lower than the vicinity of the waist opening 5. Specifically, the waist elastic member 14 and the waist elastic member 30 When the elastic members constituting each are of the same type, it is preferable to provide a gradient of two to three steps or more.

The waist elastic member 30 is also designed to have a symmetrical elongation rate with respect to the vertical center line a, but need not be symmetrical with respect to the horizontal center line b.

Next, the constituent materials of the disposable pants-type diaper will be described. The top sheet 11 is preferably a liquid-permeable sheet that allows excrement to pass through the absorber 13 and has a feel similar to underwear. Such a liquid-permeable sheet may be a woven fabric, a nonwoven fabric, a porous fabric, or the like. A film or the like is used. Further, a composite material in which a plurality of members are laminated may be used, and a water repellent treatment may be applied to a peripheral portion of the top sheet 11 or a water repellent member having three-dimensional gathers may be joined to the top sheet 11 to increase the height of the top sheet 11. Functionalization can be achieved. Further, the top sheet 11 may be formed of a material having elasticity.

The back sheet 12 needs to have at least a liquid-impermeable surface at which the back sheet 12 is in contact with the absorber 13. For example, a moisture-permeable liquid-impermeable sheet capable of transmitting vapor, an underwear With a feeling close to
For example, a composite material of the sheet and the woven fabric or the sheet and the nonwoven fabric is used, and these may have elasticity.

When a composite material is used for the top sheet 11 and the back sheet 12, the leg elastic member 15, the waist elastic member 14, and the waist elastic member 30
Can be appropriately changed.

The leg elastic member 15, the waist elastic member 14, and the waist elastic member 30 are made of natural rubber, polyurethane, polyurethane foam, or the like. can do. It is preferable that the respective elastic members are joined and fixed to other members by a known means such as an adhesive such as a hot-melt type adhesive, ultrasonic welding, and heat welding so that they can be expanded and contracted. As the hot-melt type adhesive used for the bonding and fixing, a known material which is basically composed of a base polymer, a tackifier and a softener can be used, and a rubber-based or olefin-based base polymer is used. In general, an adhesive such as a cold glue or a solvent adhesive may be used.

The absorbent 13 is preferably composed mainly of defibrated pulp and used in combination with a high-molecular-weight absorbent polymer. The absorbent 13 is mixed with thermoplastic fibers and subjected to heat treatment, or natural fibers of long fibers are mixed. What has improved shape retention is used. In addition, in order to prevent the polymer absorbing polymer from leaking out of the absorber 13, the periphery of the absorber 13 is covered with a mount, or the absorber 13 is formed in a multilayer structure, and the arrangement of the polymer absorbing polymer is unevenly distributed. You may make it. As the high molecular absorption polymer, those having a property of absorbing and retaining a liquid 20 times or more its own weight and gelling are preferable.

According to the disposable pants-type diaper of the present invention, since the waist elastic members 30 arranged as described above are provided, the waist gathers formed by the waist-elastic members 30 prevent the disposable pants-type diapers from shifting. It works in the direction of pulling up while suppressing dropping, effectively preventing slippage and improving the fit and the appearance during wearing. In addition, since the leg opening 6 and the waist opening 5 are elasticized, it is possible to reliably prevent excretion from leaking without creating a gap with the wearer. In addition, since a plurality of waist elastic members 30 are provided, the tightening force is not locally concentrated, so that the feeling of wearing is extremely suitable. The waist elastic member 30
Is arranged only on the abdomen, for example, when the wearer is an infant, the height difference of the swelling of the abdomen 2 is larger than that of the back 3, and the slippage due to the exercise of the wearer Is more prominent on the ventral side, so the slip-off prevention effect and the fit-improving effect are remarkable, but as in the first embodiment described above,
By arranging it also on the back side 3, these effects can be made more remarkable.

Next, another embodiment of the disposable pants-type diaper of the present invention will be described with reference to FIGS.
Here, FIG. 3 is a developed view (corresponding to FIG. 2) showing the second mode of the disposable pants-type diaper of the present invention, and FIG.
FIG. 5 is a developed view showing a second embodiment of the disposable pants-type diaper of the present invention (FIG. 2 equivalent view), and FIG. 5 is a developed view showing a second embodiment of the disposable pants-type diaper of the present invention (FIG. 2 equivalent view). ).

In the disposable pants-type diaper according to the second embodiment shown in FIG. 3, the leg elastic member 15 has one side edge 2 of the abdomen 2.
a, the first leg elastic member 15a disposed across the width direction of the diaper from the first cuff 4 to the other side edge 2b, and the diaper from the one side edge 3a of the back part 3 to the crotch portion 4 in the width direction. And the second leg elastic member 15b disposed to the other side edge 3b. In addition, the first leg elastic member 15a and the second leg elastic member 1
5b are disposed close to each other (without intersecting) in the crotch portion 4, thereby forming a substantially continuous gather at the leg opening 6. At this time, the portion overlapping with the absorber 13 has a low elongation rate to prevent the absorber 13 from twisting.

The waist elastic members 30 are arranged in a curved shape in the abdominal part 2, but are arranged linearly in the dorsal part 3. Eleven waist elastic members 30a to 30k of the abdominal part 2 each have the same shape (between one side edge 2a and absorber 13 and between the other side edge 2b and absorber 13 toward the crotch side, absorbing The portion overlapping with the body 13 is arranged in parallel in a linear shape), and the interval gradually increases from the waist opening 5 to the crotch 4. The two elastic members 30j and 30k on the crotch part 4 have their ends not at the side edges 2a and 2b of the abdominal part 2 but at the leg opening 6 respectively.
It is arranged in. As shown in the present embodiment, in the present invention, the “waistline portion 7” means a region from below the waist opening 5 to the crotch portion 4 (region where the absorber 13 is arranged). Further, the waist elastic member 30 of the back side portion 3 has six thread-like elastic members in a linear shape,
They are arranged in parallel with the waist opening 5 and in parallel with each other, and the gap gradually increases from the waist opening 5 toward the crotch 4 side. The disposable pants-type diaper of the present embodiment has the same effect as the disposable pants-type diaper of the first embodiment.

In the disposable pants-type diaper according to the third embodiment shown in FIG. 4, the leg elastic member 15 is provided on one side edge 2 of the abdomen 2.
a, the first leg elastic member 15a disposed across the width direction of the diaper from the first cuff 4 to the other side edge 2b, and the diaper from the one side edge 3a of the back part 3 to the crotch portion 4 in the width direction. And the second leg elastic member 15b disposed to the other side edge 3b. In addition, the first leg elastic member 15a and the second leg elastic member 1
5b are disposed close to each other (without intersecting) in the crotch portion 4, thereby forming a substantially continuous gather at the leg opening 6. At this time, the portion overlapping with the absorber 13 has a low elongation rate to prevent the absorber 13 from twisting.

The waist elastic members 30 are arranged in a curved shape on the abdomen 2, but are arranged linearly on the back 3. Eleven waist elastic members 30a to 30k of the abdomen 2 each have the same shape (a shape curved toward the crotch side between the one side edge 2a and the absorber 13 and between the other side edge 2b and the absorber 13). Are arranged in parallel with each other, but no elastic member is provided in a portion overlapping the absorber 13. The interval between the elastic members gradually increases from the waist opening 5 to the crotch 4. Also, the two elastic members 30j and 30k on the crotch portion 4 have their ends disposed in the leg openings 6 instead of the side edges 2a and 2b of the abdominal portion 2.
In the waist elastic member 30 of the back side part 3, six thread-like elastic members are linearly arranged in parallel with the waist opening 5 and in parallel with each other. It gradually widens toward the crotch 4 side. The disposable pants-type diaper of the present embodiment has the same effect as the disposable pants-type diaper of the first embodiment.

In the disposable pants-type diaper according to the fourth embodiment of the present invention shown in FIG. 5, the leg elastic member 15 crosses the diaper in the width direction from the one side edge 2a of the abdominal portion 2 to the crotch portion 4. A first leg elastic member 15a disposed up to the side edge 2b and a second leg disposed across the diaper in the width direction from the one side edge 3a of the back portion 3 to the other side edge 3b at the crotch portion 4. It is constituted by the leg elastic member 15b. Further, the first leg elastic member 15a and the second leg elastic member 15b are disposed so as to intersect at the crotch portion 4, thereby forming a gather substantially continuous with the leg opening 6. are doing. In this case, the portion overlapping with the absorber 13 has a low elongation rate,
Prevents twisting.

The waist elastic member 30 is connected to the abdomen 2
In each of the back side 3 and the elastic members 30 a and 30 o closest to the waist opening 5, they are arranged in a smoothly curved shape. As for the waist elastic members 30a to 30j of the abdominal part 2, ten thread-like elastic members are arranged. Further, the displacement rate and the interval of each elastic member of the abdominal part 2 and the back part 3 are determined by the elastic members
b, 30n, the width gradually increases from the crotch side elastic members 30h, 30k, but the three crotch sides 30h, 30i, 30j of the abdominal part 2 are also narrowed and the same. They are lined up in shape. The end of the elastic member 30j closest to the crotch side does not cover both side edges 2a and 2b of the abdominal part 2. The back side 3 is 5
It is composed of two elastic members. The disposable pants-type diaper of the present embodiment has the same effect as the disposable pants-type diaper of the first embodiment.

The disposable pants-type diaper of the present invention is not limited to the above-mentioned embodiment, and various changes can be made without departing from the spirit of the present invention. For example, the leg elastic member 15 and the waist elastic member 14 are formed by arranging several tape-like elastic members around the opening so as to interlock with each other so as to form a substantially continuous gather. You may. Further, the waist elastic member may be provided only on the abdominal side, and the number thereof is also two.
There is no particular limitation as long as the number is equal to or greater than the number of books.

[0048]

Industrial Applicability The disposable pants-type diaper of the present invention has a further effect of preventing slippage and also has an excellent fit so that the wearer can sufficiently follow the active exercise. During wear, the waist gathers formed into a curved shape effectively prevent the disposable pants-type diaper from slipping off and fit to the wearer for any movement of the wearer, and there is a gap on the side Since it does not occur, it is possible to reliably prevent excretion from leaking.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a disposable pants-type diaper according to one embodiment of the present invention.

FIG. 2 is a development view of the disposable pants-type diaper shown in FIG.

FIG. 3 is a developed view (corresponding to FIG. 2) showing a second mode of the disposable pants-type diaper of the present invention.

FIG. 4 is a development view (corresponding to FIG. 2) showing a second mode of the disposable pants-type diaper of the present invention.

FIG. 5 is a developed view (corresponding to FIG. 2) showing a second mode of the disposable pants-type diaper of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disposable pants-type diaper 2 Abdomen 2a, 2b Left and right side edges of abdomen 3 Back 3a, 3b Both sides of back 4 Crotch 5 Waist opening 5 6 Leg opening 6 7 Trunk DESCRIPTION OF SYMBOLS 10 Main body 11 Top sheet 12 Back sheet 13 Absorber 14 Waist elastic member 14 15 Leg elastic member 15 30 Waist elastic member 30

Claims (8)

[Claims] 1. A body having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber interposed between the two sheets for receiving and holding excrement, the body being worn when worn. Abdomen located on the abdomen of the person, a dorsal portion located on the dorsal side, and a crotch positioned between the abdominal portion and the dorsal portion, the abdominal portion and the crotch A waist opening and a pair of leg openings are formed by joining and fixing the left and right side edges of each of the back sides, and the waist opening and the pair of leg openings are respectively formed around the entire periphery thereof. A waist elastic member and a leg elastic member that form a substantially continuous gather are disposed, and a plurality of waist elastic members are disposed on an abdominal portion of a waist portion positioned around the wearer's waist when worn. Gathered disposable A pants-type diaper, wherein the waist elastic member is disposed in a shape displaced to the crotch side, and the amount of displacement of the elastic member is maximum at a central portion of the abdominal side, and is a disposable pants. Type diapers. 2. The disposable pants-type diaper according to claim 1, wherein the waist elastic member is further arranged on the back side. 3. The disposable pants-type diaper according to claim 2, wherein the elastic stress of the waist elastic member arranged on the abdomen is greater than the elastic stress of the waist elastic member arranged on the back side. . 4. The disposable pants-type diaper according to claim 1, wherein the plurality of waist elastic members are arranged in parallel without intersecting each other. 5. The disposable pants according to claim 1, wherein the waist elastic member is continuously stretched from one side edge to the other side edge of the abdominal portion. Type diapers. 6. The waist elastic member according to claim 1, wherein the waist elastic member is arranged so as to be smoothly curved toward the crotch portion and displaced toward the crotch side. The disposable pants-type diaper according to any one of Items 1 to 4. 7. The disposable pants-type according to claim 1, wherein the waist elastic member is disposed between the absorber and the back sheet at a portion overlapping the absorber. Diapers. 8. The waist elastic member according to claim 1, wherein the plurality of waist elastic members are configured so that the elongation rate decreases sequentially from the waist opening side to the crotch side. Disposable pants-type diapers.