JPH11146894A - Pants-type diapers - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conventional pants-type diaper, which has poor adhesion and wearing feeling, easily slips off, and has a low leakage prevention effect. SOLUTION: This pants-type diaper 11 has a waist opening 12 and a pair of leg openings 13 formed by joining side edges of an abdominal part 14F and a back part 14B of an exterior member 14 to each other. The exterior member 14 has a back side portion 14B extending from the right edge of the abdominal portion 14F along the left leg opening.
A first elastic member 18 reaching the left edge of the first elastic member 18, a second elastic member 19 symmetrical to the first elastic member 18, and a right leg opening 13R from the right edge of the abdominal portion 14F. The third elastic member 2 traversing the crotch portion 14C along the leg and reaching the left edge of the abdominal portion 14F along the left leg opening 13L.
0, the first and second elastic members 18 and 19 are made of a plurality of stretchable elastic materials, and the first and second elastic members 18 and 19 are made of a plurality of stretchable elastic materials. The interval was set wider as the side edge of the abdomen 14F.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pants-type diaper having an opening around the waist corresponding to the waist and a pair of openings around the leg corresponding to the thighs of both legs.

[0002]

2. Description of the Related Art A detachable mold having an opening around a waist corresponding to a waist portion and a pair of opening around a leg corresponding to a thigh portion of both legs disclosed in Japanese Patent Application Laid-Open No. 5-247701. The diaper, that is, the pants-type diaper, is compared with an unfolded diaper in which the left and right side flap portions are closed and attached as disclosed in, for example, Japanese Patent Publication No. Hei 6-93901, and is removable by an adult wearer. In addition to the above, it is possible to easily and quickly perform the mounting particularly in the standing posture. Also, since the pants-type diaper can be worn by an adult wearer with a feeling of underwear rather than a diaper, it seems that the pants-type diaper can be received relatively without difficulty compared to the deployment type diaper.

[0003] Under these circumstances, pants-type diapers have been developed for adults requiring diapers and for infants at the time of weaning.
Demand is increasing in place of deployable diapers. In order to improve the fit of the opening and to improve the overall feeling of wearing, elastic materials tend to be frequently used.

For example, Japanese Patent Laid-Open Publication Nos. Hei 3-33201 and Hei 3-33201 disclose an elastic member disposed along a leg opening to form a leg gather for preventing leakage from the leg opening. 139349, 3-16
920 and JP-A-4-28363.

Japanese Patent Laid-Open Publication No. 2-34364 discloses a structure in which elastic side panels are provided on both side edges of the abdomen and back sides of the exterior member and elastic members are arranged along the opening around the waist of the exterior member. No. 6,086,045.

On the other hand, both side edges of the abdominal side of the exterior member and both side edges of the back side joined to the both side edges of the abdominal side are constituted by non-stretchable members, and the Japanese Patent Application Laid-Open No. 4-166150 discloses an arrangement in which an elastic member having
JP-A-4-161152, JP-A-4-28920
No. 1, JP-A-4-364845, JP-A-4-364
371147, JP-A-4-371148,
It is disclosed in Japanese Utility Model Laid-Open No. 6-421.

Further, Japanese Patent Application Laid-Open No. 5-76567 discloses an arrangement in which at least three elastic members are combined to continuously surround the opening around the leg to improve the effect of preventing leakage during wearing. ing.

[0008]

Problems to be Solved by the Invention
No. 9 and JP-A-4-28363, the pair of elastic members arranged along the leg opening are not in an intersecting state. A region where the elastic member does not exist is generated in the portion, and the effect of preventing leakage is not always sufficient, and there is also a problem in wearing feeling.

Japanese Unexamined Patent Publication No. Hei 3-33201 and Japanese Utility Model Laid-Open Publication No.
In the pants-type diaper described in Japanese Patent No. 16920, two sets of elastic members are arranged in the width direction of the absorbent main body located at the crotch part of the exterior member. An enclosed portion is formed, and the portion is narrowed down by the gathers and protrudes, causing a problem in wearing feeling.

Further, in the pants-type diaper disclosed in Japanese Patent Application Laid-Open No. 2-4364, the cost tends to be high in both the raw material and the manufacturing process because the stretchable side panel is used. In addition, there is a problem that the detachability is not easy because a large stretching stress is generated in the side panel.

On the other hand, JP-A-4-166150, JP-A-4-161152, JP-A-4-289201
JP, JP-A-4-364845, JP-A-4-3
In the pants-type diaper disclosed in JP-A-71147, JP-A-4-371148, and JP-A-6-421, when the elastic member is arranged in parallel with the waist around the opening around the waist, the crotch of the wearer may be reduced. Adhesiveness of the absorbent main body to the part is low, causing a problem in wearability. In contrast,
When the elastic member is arranged diagonally, such a problem can be prevented, but since the elastic members forming the waist gather and the leg gather are independent from each other, the function of preventing the diaper from slipping down is sufficient. Not the part corresponding to the crotch part from the lower abdomen of the wearer due to the absorption of excrement (the elastic member is not arranged)
Bulges and the appearance deteriorates, and depending on the posture of the wearer, there is a possibility that leakage may occur on the crotch side of the leg opening.

Further, in the case of the pants-type diaper disclosed in Japanese Patent Application Laid-Open No. 5-76567, linear elastic members are used, but the elastic members are set so as to spread over the abdomen of the wearer. However, the diaper is not sufficiently adhered, and may cause discomfort to the wearer.

[0013]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a pants-type diaper which has good adhesiveness, is excellent in a feeling of wearing, suppresses slipping off, has a high leakage prevention effect, and is easy to manufacture.

[0014]

According to the present invention, there is provided a pants-type diaper according to the present invention, comprising an exterior member having an abdominal portion, a crotch portion, and a back portion, and the back portion of the exterior member passing through the crotch portion from the abdomen portion. A waist corresponding to a waist portion, comprising an absorbent body disposed over the side portion, wherein both side edges of the abdominal portion of the exterior member and both side edges of the back side portion are joined to each other. A pants-type diaper having a peripheral opening and a pair of leg openings corresponding to the thighs of both legs, wherein the exterior member passes through a lower abdomen from a right edge of the abdomen to a left abdomen. A first elastic member having elasticity extending to the left side edge of the back side along the opening around the leg, and the abdomen of the abdomen so as to intersect the first elastic member at the lower abdomen. Stretch from the left edge to the right edge of the back side along the right leg opening A second elastic member that extends from the right edge of the abdominal portion along the right leg opening so as to intersect the first and second elastic members at the crotch portion, respectively. And a third elastic member having elasticity extending to the left side edge of the abdominal side along the left leg surrounding opening, and the first, second, and third elastic members are The first elastic member is formed of a plurality of stretchable elastic materials, and the plurality of stretchable elastic materials constituting the first elastic member are set so as to have a wider interval toward the right edge of the abdominal side, and the second elastic A plurality of the stretchable elastic materials constituting the member are set such that the interval is set wider toward the left edge of the abdominal side.

According to the present invention, the first elastic member which passes from the right edge of the abdominal side to the lower abdomen and extends to the left side edge of the back side along the left leg opening, and the first elastic member. Cross the crotch along the right leg opening from the right edge of the abdomen so as to cross the elastic member at the crotch, and the left edge of the abdomen along the left leg opening And a third elastic member which forms a leg gather surrounding the opening around the left leg. Similarly, a second elastic member that passes from the left edge of the abdominal portion to the right edge of the back portion along the right leg surrounding opening through the lower abdomen; A third edge of the abdomen from the right edge of the abdominal portion so as to intersect at the crotch portion along the right leg opening, and the left edge of the abdomen along the left leg opening; A leg gather surrounding the right leg opening is formed by the elastic member.

Further, the first and second elastic members are crossed at the center of the abdominal portion of the exterior member, and the third elastic member crosses the crotch portion to form the first and second elastic members. The member and the crotch cross each other on both left and right edges,
The absorbent body is pressed tightly over the lower abdomen and crotch of the wearer.

Further, the interval between the plurality of elastic materials constituting the first and second elastic members is set wider toward the left and right side edges of the abdomen of the exterior member, so that the lower part of the wearer is For the part from the abdomen to the side part of the waist,
It is in a close contact state without sticking.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In a pants-type diaper according to the present invention, it is also effective to form a waist gather by arranging an elastic member having elasticity along an opening around the waist on an exterior member.

Further, an inner layer sheet for holding the first, second and third elastic members between the outer member and the outer member may be further provided, and the absorbent body may be joined to the inner layer sheet.

Further, the absorbent body includes a liquid-permeable topsheet, a backsheet positioned between the topsheet and the exterior member, and an absorber disposed between the topsheet and the backsheet. It is desirable to have

On the other hand, the absorber of the absorbent main body may not be present at the intersection of the first and second elastic members and the third elastic member, whereby the close contact of the absorber at the crotch portion is achieved. It is also possible to maintain the nature.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a pants-type diaper according to the present invention will be described in detail with reference to FIGS. 1 to 6. However, the present invention is not limited to such an embodiment, and they may be further combined with each other. Naturally, it can be diverted to a pants-type diaper having a known structure.

FIG. 1 shows the appearance of the pants-type diaper in this embodiment, and FIG.
FIG. 3 shows the sectional structure taken along the line III-III. That is,
The pants-type diaper 11 according to the present embodiment includes a waist opening 12 corresponding to the waist and a pair of left and right leg openings 13L and 13R corresponding to the thighs of both legs.
And an exterior member 14 forming these openings 12, 13L, 13R, a waist elastic member 16 for forming a waist gather 15 by narrowing the waist opening 12, and a leg opening 13L, 13R. First elastic member 1 for forming leg gathers 17 by squeezing
8, the second elastic member 19, the third elastic member 20, and the absorption extending from the crotch portion 14C of the exterior member 14 between the left and right leg opening portions 13L, 13R to the abdominal portion 14F and the back side portion 14B. A main body 21.

Further, a pair of right and left closing portions 22L communicating with the waist opening 12 and the leg opening 13L, 13R are provided on both left and right side edges of the abdomen 14F and the back 14B of the exterior member 14. , 22R are formed so as to be peelable, and by separating these closing portions 22L, 22R, they can be developed as shown in FIG.

That is, from the unfolded state shown in FIG. 2, the front and rear closing portions 22L and 22R of the exterior member 14 are overlapped with each other, and these contact portions are joined by a hot melt bonding method, a pressure melting bonding method, or a super melt bonding method. The underpants-type diaper 11 shown in FIG. 1 can be obtained by joining the sonic fusion method alone or in an appropriate combination.

The absorbent main body 21 in this embodiment includes an absorber 23, a back sheet 24 provided between the absorber 23 and the exterior member 14, and a liquid-permeable top sheet 25 covering the absorber 23. The back sheet 24 and the top sheet 25 have the same shape as the exterior member 14 and are overlapped with each other.

The back sheet 24 of the absorbent main body 21 and the exterior member 14 are integrally joined to each other by a plurality of linearly extending adhesive portions (not shown) which are continuous along the longitudinal direction. ing. In the present embodiment, the back sheet 24 and the top sheet 25 are
Of the top sheet 25, but it is also possible to arrange the top sheet 25 so as to cover only the absorber 23, for example.

The absorbent body 23 in this embodiment is made of a known absorbent material that is commonly used for conventional diapers and other absorbent articles. That is, a high-absorbency polymer material (hereinafter referred to as SAP) is uniformly mixed in a single-layer or multi-layer mat made of absorbent fibers such as cotton-like pulp and rayon, or dispersed in layers between each mat. And wrap it with a hydrophilic sheet such as tissue, absorbent paper, hydrophilic non-woven fabric or cotton-like pulp.
〜60% by weight of a heat-fusible substance mixed and thermocompression bonded, or only SAP wrapped with a hydrophilic sheet is used. The absorber 23 may be formed to have a uniform density and smoothness, or may have an unevenness formed on the surface by embossing to change the density. In this embodiment, the absorber 2
Although 3 is formed in an hourglass shape in which the width of both front and rear ends is widened, it may be formed in a rectangular shape having a constant width. However, the hourglass shape can ensure better fit when worn.

The cotton-like pulp has a fiber length of 5 mm or less obtained by defibrating a chemical pulp sheet or a mechanical pulp sheet with a crusher. The raw material for the pulp is not limited to conifers, but may be hardwood, straw, bamboo, kenaf or used paper pulp. The amount of the pulp used varies depending on whether it is used alone, a plurality of layers are used, or another absorbent is used in combination, but generally, 50 to 400 g per square meter.
Set to about.

Examples of the SAP include starch-based, cellulose-based, and synthetic polymer-based SAPs. That is, a starch-acrylic acid (salt) graft copolymer, a saponified product of starch-ethyl acrylate graft copolymer, a saponified product of starch-methyl methacrylate graft copolymer, a saponified product of starch-acrylonitrile graft copolymer , Starch-acrylamide graft copolymer saponified product, starch-acrylonitrile-2-acrylamide-2-methylpropanesulfonic acid graft copolymer saponified product, acrylic acid (salt) polymer, polyethylene oxide cross-linked with acrylic acid , Sodium carboxymethyl cellulose, cross-linked product of polyvinyl alcohol-maleic anhydride reactant, etc. In particular, a sodium polyacrylate-based material that absorbs liquid such as urine that is 20 times or more its own weight is preferable from the viewpoint of absorption performance. The amount of the SAP used is 10 to 500 parts by weight, preferably 15 to 300 parts by weight, based on 100 parts by weight of the dried floc pulp. And S
When the AP absorbs the liquid and swells, the mutual interference of the particles is minimized, and the liquid does not continuously form a liquid permeation barrier and penetrates and absorbs the liquid in three dimensions. Is desirable.

Note that a diffusion layer may be joined to the surface of the absorber 23. By arranging this diffusion layer, it is possible to prevent leakage without reducing the absorption rate of urine or the like, regardless of the posture of the wearer.
As this diffusion layer, polypropylene or polyethylene,
Polyester, rayon, pulp, and hydrophilic and liquid-permeable non-woven fabric, woven fabric,
It can be made of porous plastic, floc pulp, etc.

The exterior member 14 and the back sheet 24 only need to have at least one of them impermeable to liquid, such as a liquid impermeable film such as polyethylene or a hydrophilic or hydrophobic nonwoven fabric. A woven fabric or the like can be used alone, or a liquid-impermeable film bonded to a nonwoven fabric or a woven fabric can be used as appropriate.

Further, as the top sheet 25,
A hydrophilic or hydrophobic nonwoven fabric, woven fabric, or porous plastic film formed of a single fiber such as polypropylene, polyethylene, polyester, or nylon, or a composite fiber composed of two or more components such as polyester, polypropylene, polyethylene, or nylon. Etc. can be adopted. In particular, low-melting polyester / polyester, polyester / polyethylene or polypropylene / polyethylene composite fibers are preferred from the viewpoint of strength. The topsheet 25 may have the same dimensions and shape as the backsheet 24, or may be larger.
The top sheet 25 does not need to be formed of a single sheet, but may be formed of a center top sheet that covers the upper surface of the absorber 23 and a pair of side top sheets that are joined to both sides in the width direction. Is possible, in this case
The center top sheet and the side top sheet may be formed of different materials.

First to third elastic members 18 to 20 are provided between the exterior member 14 and the back sheet 24 of the absorbent main body 21.
Are held in an extended state. The first elastic member 18
Closing part 22R located on the right edge of abdominal part 14F
From the lower abdomen to the left side edge of the back side portion 14B along the left leg opening 13L.
Is arranged to reach. Also, the second elastic member 1
Reference numeral 9 denotes a closing portion 22 located on the left side edge of the abdominal portion 14F so as to intersect the first elastic member 18 at the lower abdomen.
L through the lower abdomen, the closing portion 22 located at the right edge of the back portion 14B along the right leg opening 13R.
It is arranged to reach R. On the other hand, the third elastic member 20 extends from the closing portion 22R located at the right edge of the abdominal side 14F so as to intersect the first and second elastic members 18 and 19 at the crotch portion 14C, respectively. Side 14F
The closing portion 22 traverses the crotch portion 14C along the right leg opening 13R and is located on the left edge of the abdominal portion 14F along the left leg opening 13L of the abdominal portion 14F.
L.

The first and second elastic members 18, 1
Reference numeral 9 denotes a plurality of (five in the illustrated example) stretch elastic materials, and the plurality of stretch elastic materials constituting the first elastic member 18 are spaced closer to the right edge of the abdominal portion 14F. Are set wider, and the interval between the plurality of stretchable elastic materials forming the second elastic member 19 is set wider toward the left edge of the abdominal portion 14F. In addition, the number of the elastic material constituting the third elastic member 20 may be one, but may be plural, and in the case of plural, the elastic material may be arranged evenly, but along the leg surrounding openings 13L, 13R. The interval may be set to be widened as a whole.

The number of the elastic members constituting the third elastic member 20 that crosses the crotch portion 14C and the first and second elastic members that intersect the third elastic member 20 at the lower abdomen of the abdomen 14F. The number of the elastic materials constituting the members 18 and 19 may be different. Also, elastic members 18 to 20 arranged in the left and right leg surrounding openings 13L, 13R.
It is not necessary to set the adjacent intervals of the stretchable elastic materials constituting each other equally, for example, the closer the first and second elastic members 18 and 19 are to the side closer to the waist opening 12, the closer the adjacent intervals of the stretchable elastic material are. It may be set to be dense, and the third elastic member 20 is connected to the leg opening 13L,
It may be set so that the distance between adjacent elastic elastic materials becomes smaller on the side closer to 13R.

As described above, the first and second elastic members 1
8 and 19 are crossed at the abdominal part 14F of the exterior member 14, and the third elastic member 20 is attached to the crotch part 14F.
C, the first and second elastic members and the crotch portion 14C
Absorber 2
3 is pressed in tight contact over the lower abdomen of the wearer and the crotch portion 14C. In addition, since the interval between the plurality of elastic materials constituting the elastic members 18 and 19 is set wider toward the left and right side edges of the abdominal portion 14F of the exterior member 14, the lower abdomen and the waist of the wearer are reduced. Can be brought into close contact with the side portions without sticking, and a good wearing feeling can be obtained. Further, a stretchable elastic material may be arranged only on the back side portion 14B or on the back side portion 14B and the abdominal side portion 14F in parallel with the waist opening 12.

The first and second elastic members 18, 19
And the third elastic member 20 intersect with the left and right leg openings 13 so as not to overlap with the absorber 23.
L, 13R are set on the left and right side edges of the crotch portion 14C in the vicinity. In addition, these crossing positions are
It is desirable to set it near the abdominal part 14F of C, and it is most effective to set it at the urination site where swelling is most likely due to urination.

As described above, the first and second elastic members 1
Since the absorbers 23 of the absorbent main body 21 do not exist at the intersections of the 8, 19 and the third elastic members 20, respectively,
The adhesion of the absorber 23 to the wearer's crotch can be maintained. Further, by giving continuity to the first to third elastic members 18 to 20 in the closing portions 22L and 22R, a good wearing feeling can be obtained.

The waist-surrounding elastic members 16 are arranged at both ends in the longitudinal direction of the exterior member 14 in an extended state.
In the present embodiment, both ends in the longitudinal direction of the exterior member 14 are folded back so as to sandwich the elastic member 16 around the waist,
An opening 12 around the waist is formed. Further, the number of elastic members 16 around the waist in the present embodiment is
Although the same number is set for F and the back side portion 14B, it is not particularly limited. However, when the number of elastic members 16 around the waist of the back part 14B is larger than that of the abdominal part 14F, the adhesion of the back part 14F to the wearer can be improved. The adjacent distance between the elastic members forming the waist elastic member 16 is not particularly limited. However, it is preferable that the distance between the elastic members is set larger on the back side portion 14F on the side closer to the absorber 23. However, since it is possible to improve the adhesion of the back side portion 14F to the wearer, it can be said that it is more preferable.

The elastic members 16, 18 to 20 described above are made of natural rubber, synthetic rubber, urethane or the like in the form of a thread, string, net, or flat, depending on the arrangement position. Exterior member 1 with a water-soluble glue such as methylcellulose) or a highly fluid adhesive.
4, but may be welded by hot melt or ultrasonic waves.

As shown in FIG. 4, which conceptually shows the manufacturing process of such a pants-type diaper 11, a continuous body 1 of an exterior member is shown.
4W to the continuum 16W of the elastic member around the waist and the first
To 18 W to 20 W of the third elastic member are arranged in an extended state, respectively. First and second meandering states respectively
The continuities 18W and 19W of the elastic members have large arc portions 26 having a large radius of curvature and small arc portions 27 having a small radius of curvature alternately.
The phases of the continuum members 18W and 19W of the elastic members are shifted by a half pitch. Further, the continuum 20W of the third elastic member has small arc portions 28 having a small radius of curvature corresponding to the small arc portions 27 described above and large arc portions 29 having a large radius of curvature alternately.

Then, the continuum 21 of the absorbent main body is placed thereon.
W is superposed and integrated with the continuum 14W of the exterior member, but the continuum 21W of the absorbent main body has the absorber 23 placed at a predetermined interval on the continuum 24W of the back sheet, and the top sheet is further placed thereon. Are obtained by stacking and integrating the continuum 25W.

Further, both side edges of the continuum 14W of the exterior member 14 are folded back, and a portion surrounded by the small arc portion 27 of the continuum 18W to 20W of the first to third elastic members is hollowed out in an almost elliptical shape. A hollow portion 30 is formed.

Then, the continuum 14W of the exterior member is folded in half at the center along the longitudinal direction so that the absorbent main body 21 is on the inside, and a pair of wings located on both side edges of the continuum 14W of the exterior member is formed. Continuum of elastic members around waist 1
6W are superimposed on each other, and an adhesive fixing portion having a width twice as large as the closing portions 22L and 22R so as to cross the central portion of the large arc portion 26 and the small arc portion 27 in the width direction of the continuum 14W of the exterior member. Are formed at predetermined intervals to obtain a continuous body of pants-type diapers, and then the central portion of the adhesive fixing portion is cut to obtain individual pants-type diapers 11.

In the above-described embodiment, the absorbent main body 21 is formed by the absorber 23, the back sheet 24, and the top sheet 25, but the back sheet 24 is omitted and the absorber 23 and the top sheet 25 are attached to the exterior member 14. You may superimpose directly. FIG. 5 shows a schematic structure of another embodiment of the pants-type diaper according to the present invention. Members having the same functions as those of the previous embodiment are denoted by the same reference numerals, and overlapping description is omitted. It shall be.

That is, the absorber 23 and the top sheet 25 are directly overlapped on the exterior member 14, and the elastic members 18 to 20 are held between the absorber 23 and the top sheet 25 and the exterior member 14. It is in a state. As described above, the back sheet 24 in the previous embodiment is used.
By omitting, it is possible to simplify the manufacturing process and reduce the manufacturing cost.

Further, an inner layer sheet may be superposed on the outer member 14, and an elastic member may be sandwiched between the inner layer sheet and the outer member 14. FIG. 6 shows a schematic structure of another embodiment of the pants-type diaper according to the present invention. Members having the same functions as those of the previous embodiment are denoted by the same reference numerals, and overlapping description is omitted. It shall be.

That is, the elastic member 16 (see FIG. 1), 18 to 20 is provided between the exterior member 14 and the exterior member 14.
Are superimposed on each other, and the absorbent main body 21 is joined onto the inner layer sheet 31. In the absorbent main body 21 according to the present embodiment, only the center portion of the back sheet 24 in the width direction is overlapped with the inner layer sheet 31, and the back sheet 24 and the top sheet 25
Are formed so as to protrude from both side edges in the width direction of the absorber 23, and the elastic member 32 is sandwiched in this portion to form a three-dimensional gather 33. The elastic force of the member 32 causes the member 32 to contract and contract in the longitudinal direction so that the member 32 comes into close contact with the wearer's skin, and in particular, care is taken to prevent leakage from the crotch portion 14C.

The exterior member 14 and the back sheet 24
The inner layer sheet 31 may be a liquid-impermeable film or a hydrophilic or hydrophobic nonwoven fabric, woven fabric, or the like, as long as at least one of them is liquid-impermeable.

When the pants-type diaper 11 shown in FIG. 6 is manufactured, the manufacturing process of the absorbent body continuous body 21W (see FIG. 6) in the above embodiment may be changed as follows, for example. . That is, the backsheet continuum 24W having a width larger than the width of the absorber 23 so that the longitudinal direction of the absorber 23 matches the longitudinal direction of the backsheet continuum 24W (see FIG. 6). Absorbers 23 are arranged at predetermined intervals in a central portion along the longitudinal direction, and further, a continuum of elastic members 32 is disposed in an extended state at both side edges of the continuum 24W of the back sheet. And absorber 2
The top sheet continuum 25W (see FIG. 6) having a width dimension larger than the width dimension of the backsheet 3 is superimposed on the backsheet continuum 24W and the absorber 23, and these are integrally joined to each other to absorb the absorbent sheet. A continuum 21W of the main body is obtained.

After the continuous body 21W of the absorbent main body is cut at predetermined intervals to obtain individual absorbent main bodies 21, the longitudinal direction of the absorbent main body 21 matches the width direction of the continuous body of the exterior member 14. As such, these absorbent bodies 21 may be arranged at predetermined intervals on the continuous body of the inner layer sheet 31.

[0053]

According to the pants-type diaper of the present invention, the first
And the second elastic member is arranged in a crossed state at the abdominal side of the non-stretchable exterior member, and the third elastic member crossing the crotch portion includes the first and second elastic members and the left and right portions of the crotch portion. Because they intersect at both side edges, the absorbent body is pressed against the wearer's lower abdomen and crotch in tight contact,
As a result of the diaper being most easily swollen by urination and falling down at the crotch portion of the diaper being suppressed, a pants-type diaper excellent in wearing feeling can be manufactured at low cost.

Further, since the interval between the plurality of elastic materials constituting each elastic member is set wider toward both side edges of the abdomen of the exterior member, the lower abdomen of the wearer and the side portions of the waist are set. It is possible to further improve the wearability by tightly adhering to the part over without being stuck.

Further, the first and second elastic members and the third
When the absorber of the absorbent main body is made not to exist at the intersection with the elastic member, the adhesiveness of the absorber at the crotch portion can be further improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an abdominal appearance of an embodiment of a pants-type diaper according to the present invention.

FIG. 2 is a perspective view showing the appearance of a state in which the closed portion of the pants-type diaper shown in FIG.

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

FIG. 4 is a conceptual work diagram showing a part of a manufacturing process of the pants-type diaper shown in FIG.

FIG. 5 is a sectional view corresponding to FIG. 3 of another embodiment of the pants-type diaper according to the present invention.

FIG. 6 is a sectional view corresponding to FIG. 3 of another embodiment of the pants-type diaper according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Pants type diaper 12 Waist circumference opening 13L, 13R Leg circumference opening 14 Exterior member 14F Abdominal part 14B Back side 14C Crotch part 14W Continuous body of exterior member 15 Waist gather 16 Waist elastic member 16W Waist elastic member Continuum 17 Leg gather 18 First elastic member 18W Continuum of first elastic member 19 Second elastic member 19W Continuum of second elastic member 20 Third elastic member 20W Continuum of third elastic member DESCRIPTION OF SYMBOLS 21 Absorbent main body 21W Absorbent main body continuum 22L, 22R Closed part 23 Absorber 24 Backsheet 24W Backsheet continuum 25 Topsheet 25W Topsheet continuum 26, 29 Large arc 27, 28 Small arc 27 Reference Signs List 30 hollow part 31 inner layer sheet 32 elastic member 33 three-dimensional gather

Claims (5)

[Claims] 1. An exterior member having an abdominal portion, a crotch portion, and a back side portion, and an absorbent main body disposed from the abdomen portion to the crotch portion of the exterior member and extending to the back side portion. With
A waist opening corresponding to a waist portion and a pair of legs corresponding to a thigh portion of both legs are formed by joining both side edges of an abdominal portion of the exterior member and both side edges of the back side portion to each other. A pants-type diaper having an opening formed therein, wherein the exterior member passes through a lower abdomen from a right edge of the abdomen to a left edge of the back side along the left leg opening. A first elastic member having elasticity to reach the first elastic member, and the back extending along the leg opening from the left edge of the abdominal side to the right so as to intersect the first elastic member at the lower abdomen. A second elastic member having elasticity reaching the right side edge of the side portion, and the right and left sides of the abdominal side portion intersecting the first and second elastic members at the crotch portion, respectively. Traverse the crotch along the opening around the leg and along the opening around the left leg And a third elastic member having elasticity reaching the left side edge of the abdominal part is arranged, and these first, second and third elastic members are respectively constituted by a plurality of elastic elastic materials. The distance between the plurality of stretchable elastic materials constituting the first elastic member is set to be wider toward the right edge of the abdominal portion, and the plurality of stretchable elastic materials constituting the second elastic member are A pants-type diaper, wherein the left side edge of the abdominal portion has a wider interval. 2. The pants-type diaper according to claim 1, wherein an elastic member having elasticity is arranged on the exterior member along the opening around the waist. 3. The apparatus according to claim 1, further comprising: an inner layer sheet for holding the first, second and third elastic members between the outer member and the outer layer member, wherein the absorbent body is joined to the inner layer sheet. The pants-type diaper according to claim 1 or 2, wherein the pants-type diaper is made. 4. The absorbent body includes a liquid-permeable topsheet, a backsheet positioned between the topsheet and the exterior member, and an absorbent disposed between the topsheet and the backsheet. The pants-type diaper according to any one of claims 1 to 3, further comprising a body. 5. The absorbent body of the absorbent main body does not exist at the intersection of the first and second elastic members and the third elastic member. The pants-type diaper described in.