JP4480859B2 - Diapers - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a diaper that is intended to reduce skin troubles in the buttock in consideration of preventing stool from directly adhering to the wearer's buttock.
[0002]
[Prior art]
According to “so-called diaper rash” by Kazuya Yamamoto described on page 949 to page 956 (1998) of dermatology 30 regarding the cause and onset mechanism of diaper rash, (1) urine and feces are mixed. Ammonia is generated, (2) this ammonia makes the environment alkaline, (3) the enzyme in the stool is strongly activated in an alkaline atmosphere, (4) the weakened part of the skin is inflamed by this enzyme and ammonia, and the diaper It states that a rash will occur. Causes of weakened skin are the mechanical irritation such as the touch of the diaper components that come into contact with the skin, and the environment inside the diaper where the skin becomes soft due to high humidity in the diaper. It has been pointed out.
[0003]
For the cause of diaper rash as described above, the performance improvement accompanying the technical advancement of the polymer absorbent member, for example, quickly absorbing this after urination and reducing its permeation diffusion, even if defecation occurs It is possible to make it difficult to mix. As for the environment inside the diaper, for example, by using a breathable sheet for the diaper, it is possible to take measures against stuffiness in the diaper and to prevent the skin from being softened. Since countermeasures against diaper rash have progressed in this way, skin troubles such as rash caused by the use of so-called disposable diapers have also decreased.
[0004]
However, when urine and feces are excreted almost simultaneously, or for prevention of rashes on soft stools, measures have not been sufficient. In the case of loose stool, if it is left unmixed with urine, the burden on the skin increases. Since loose stool hardly passes through the top sheet of the diaper that comes into contact with the skin, a part of the moisture remains on the top sheet and adheres to the wearer's buttocks, except for a part of the moisture transferred to the absorber. For this reason, even if trouble does not occur in the skin, the wiping work on the buttocks becomes complicated when changing diapers.
[0005]
In this way, in order to prevent stool and urine from mixing with each other and stool from adhering to the buttocks, for example, JP-A-61-41304, JP-A-6-5614, JP-A-6-21623. Japanese Utility Model Laid-Open No. 6-11723 proposes a diaper capable of separating urine and feces.
[0006]
The diaper disclosed in Japanese Patent Application Laid-Open No. 61-41304 has a so-called top sheet by providing a long opening in the length direction at the center of the top sheet and attaching an elastic member along the peripheral edge of the opening. It is designed so that the opening is not blocked by having a stiffness. Moreover, the diaper disclosed in Japanese Utility Model Publication No. 6-5614 is a valve formed by extending a top sheet from the periphery of the opening to the center of the recess provided below the opening provided in the top sheet. The stool separated by the opening is designed so as not to reverse. The diaper disclosed in Japanese Utility Model Laid-Open No. 6-21623 has an area of an opening for storing feces by overlapping two sets of flaps extending in the length direction and the width direction and forming an opening at the center thereof. Can be set widely. Furthermore, the diaper disclosed in Japanese Utility Model Laid-Open No. 6-11723 is provided with a second surface sheet on the first surface sheet, and the opening provided in the center portion in the longitudinal direction of the second surface sheet is horizontally disposed. A plurality of elastic members that are expanded in the direction are further provided.
[0007]
[Problems to be solved by the invention]
In the case of a diaper disclosed in Japanese Patent Application Laid-Open No. 61-41304 and Japanese Utility Model Laid-Open No. 6-5614, when the state of wearing the diaper is observed, the crotch region of the diaper is centered by the crotch of the wearer's legs. It became clear that it was in a state where it hanged down without being in close contact with the skin. That is, in these diapers, the crotch region of the top sheet or the top sheet (hereinafter collectively referred to as the top sheet) is not in close contact with the wearer's crotch, so the opening provided in the top sheet does not make sense. This causes a problem that the stool spreads on the top sheet. Even if the position of the opening of the top sheet matches the position of the wearer's anus, since the top sheet is not in close contact with the wearer's crotch, the opening is closed, and the opening is closed. It is expected that the stool cannot be guided between the top sheet and the back sheet.
[0008]
Moreover, in the case of the diaper disclosed in Japanese Utility Model Laid-Open No. 6-11723, the opening is only widened in the width direction, and the opening is crushed by the wearer's crotch. In the same manner as above, the function of the opening cannot be fully exhibited.
[0009]
Furthermore, in the case of the diaper disclosed in Japanese Utility Model Publication No. Hei 6-21623, by taking a wide area of the opening formed in the second topsheet, the position of this opening is almost the same as the position of the wearer's anus. Although it can be surely matched, on the contrary, since the opening area of the opening is too large, the stool guided between the second surface sheet and the first surface sheet through the opening again opens the opening. Therefore, there is a high possibility that the wearer's buttocks will be soiled by returning to the second top sheet.
[0010]
OBJECT OF THE INVENTION
An object of the present invention is to provide an improved diaper in which an opening for separating stool is provided in a top sheet, and a function of a diaper intended to reduce skin troubles such as diaper rash can be sufficiently exerted. is there.
[0011]
[Means for Solving the Problems]
A diaper according to the present invention is a diaper having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet. It is arranged on the top sheet so as to extend from the back through the crotch region to the back body, and only its both longitudinal ends are joined to the top sheet or the back sheet. A gap is formed between the top sheet and a portion other than both ends in the longitudinal direction Skin contact sheet and a portion of the skin contact sheet that becomes the crotch region of the diaper. To guide the stool into the gap An opening and an elastic member that can be stretched and joined to the skin contact sheet in an extended state so as to surround the opening are provided.
[0012]
According to the present invention, in the state where the diaper is worn, the skin contact sheet comes into contact with the wearer in a close contact state due to the contraction force of the elastic member joined in an expanded state to the skin contact sheet. The opening formed in the contact sheet is surrounded by a stretched elastic member, and tension is applied to expand the diameter. With skin contact sheet Top sheet With while On top sheet through voids formed in Led to.
[0013]
In the diaper according to the present invention, at least four elastic members may extend from the front body to the back body of the diaper and pass through the vicinity of the opening. In this case, it is also possible to arrange two sets of two elastic members in a state of being overlaid on the skin contact sheet so as to intersect and surround the opening.
[0014]
Further, at least two elastic members extend from one side edge of the front body of the diaper to one side edge of the back body through the crotch region so as to sandwich the opening, and at least two elastic members The diaper may extend from the other side edge of the front body to the other side edge of the rear body through the crotch region so as to sandwich the opening.
[0015]
Alternatively, at least two elastic members extend from one side edge of the front body of the diaper to the other side edge of the front body through the crotch region so as to sandwich the opening, and at least two elastic members The diaper may extend from one side edge of the back body through the crotch region to the other side edge of the back body so as to sandwich the opening.
[0016]
Furthermore, it is preferable that the elastic member is arranged so that the tension acts almost evenly in the opposite direction of the opening, thereby causing a substantially uniform deformation along the opening end of the opening, and a wide opening having a stable shape. Is formed.
[0017]
Moreover, you may make it form a notch part in the center part of the width direction of the skin contact sheet used as the front body area | region of a diaper. In this case, it is effective to make the skin contact sheet liquid-impermeable.
[0018]
Furthermore, you may arrange | position a 2nd absorber in the part of the skin contact sheet used as the front body area | region of a diaper. In this case, the second absorbent body may include a mixture of a polymer absorbent member and microfibril cellulose, and may be formed by coating on a skin contact sheet.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments in which a diaper according to the present invention is applied to a pants-type diaper will be described in detail with reference to FIGS. 1 to 12, but the present invention is not limited to such an embodiment, and these may be further combined, The present invention can also be applied to other technologies that should be included in the concept of the present invention described in the claims of this document.
[0020]
The appearance of the diaper according to the present embodiment is shown in FIG. 1, the unfolded shape is shown in FIG. 2, the sectional structure taken along the line III-III is shown in FIG. 3, and the central section from the front body to the back body of the diaper in the embodiment The shape is shown in FIG. That is, the diaper 10 in the present embodiment includes a liquid-permeable top sheet 11 having a pant-like shape as a whole, a liquid-impermeable back sheet 12 on which the top sheet 11 is superimposed, and the top sheet 11 and the back sheet. The absorbent body 13 that is disposed between the front body 10F of the diaper 10 and extends from the front body 10F to the back body 10R of the diaper 10 has a substantially hourglass-shaped sheet shape, and extends along the opening 14 around the waist of the diaper 10. A plurality of stretchable elastic members 15 around the waist held between the topsheet 11 and the backsheet 12 in a state, and the topsheet 11 and the backsheet 12 in a stretched state along the leg-hole openings 16 of the diaper 10. A plurality of elastic members 17 around the leg that are held between the front and the front body 10F of the diaper 10 disposed on the top sheet 11 The skin contact sheet 18 that extends over about 10R and whose longitudinal end portions 18E are joined to the top sheet 11, and the widthwise central portion of the skin contact sheet 18 that becomes the front body region of the diaper 10 A substantially V-shaped or U-shaped cutout 19 formed in the upper portion, an opening 20 formed in a crotch region of the diaper 10 at the center of the skin contact sheet 18, and surrounding the opening 20 And four sets of elastic members 21a, 21b, 22a, 22b that are stretchable and joined in a stretched state along the longitudinal direction of the skin contact sheet 18 respectively.
[0021]
The skin contact sheet 18 in the present embodiment is composed of an upper sheet 18U and a liner sheet 18L that are overlapped with each other. The above-described two sets of elastic members 21a, 21b, 22a, and 22b are the upper sheet 18U and the liner sheet 18L. Is sandwiched between. One set of elastic members 21a and 21b extends from one end side in the width direction of the front body region through the crotch region so as to sandwich the opening 20, and extends to the other end in the width direction of the back body region. The elastic members 22a and 22b extend from the other end in the width direction of the front body region to the one end in the width direction of the rear body region through the crotch region so as to sandwich the opening 20 therebetween. That is, the two sets of elastic members 21 a, 21 b, 22 a, and 22 b are arranged so as to cross the skin contact sheet 18 so as to cross each other with the opening 20 interposed therebetween. Is surrounded by these two sets of elastic members 21a, 21b, 22a, 22b.
[0022]
As the top sheet 11, it is preferable to use a liquid-permeable nonwoven fabric made of synthetic fibers made of polyethylene, polypropylene, polyester, or other thermoplastic resins.
[0023]
Further, as the back sheet 12 constituting the so-called diaper cover, a liquid-impermeable sheet can be used alone, but a laminate of a plurality of nonwoven fabrics can also be used. Examples of the liquid-impermeable sheet include a liquid-impermeable polyethylene sheet, preferably a polyethylene sheet provided with micropores for air permeability, and a sheet that is stretched by adding a filler to a thermoplastic resin. It is preferable to use a certain liquid-impermeable sheet, and by providing such moisture permeability, the worry of stuffiness can be eliminated, which is more comfortable. Furthermore, in order to improve the touch on the surface of the back sheet 12, a non-woven fabric made of a synthetic fiber made of a thermoplastic resin such as polyethylene, polypropylene, or polyester may be pasted. In this case, the nonwoven fabric may be liquid-impermeable or liquid-permeable.
[0024]
Absorbent body 13 is preferably made of wood pulp or fluff pulp made of non-wood pulp made into cotton, and a combination of a polymeric absorbent member (SAP) and absorbent paper alone or heat-bonded fiber. Such a mixture or laminate is used. Further, it is preferable to have a laminated structure in which the whole is wrapped with tissue 23 in order to prevent SAP from popping out.
[0025]
The elastic members 15 and 17 disposed in the waist opening 14 and the leg opening 16 are stretchable elastic materials used for ordinary diapers such as natural rubber flat rubber, urethane thread, and thread rubber. A member is used and bonded and fixed using a hot melt adhesive or the like.
[0026]
As the skin contact sheet 18, a nonwoven fabric, a mesh sheet, or a film made of synthetic fiber or the like using polyethylene, polypropylene, polyester, or other thermoplastic resin as a raw material is used. In this case, the front body region may be a liquid-permeable nonwoven fabric or film, and the crotch region and the back body region may be a liquid-impermeable nonwoven fabric, mesh sheet, or film.
[0027]
The elastic members 21a, 21b, 22a and 22b can be stretched and used in ordinary diapers such as ribbon rubber flat rubber made of natural rubber, urethane thread, thread rubber, stretchable net, stretchable film, etc. The elastic member can be used as it is, has an arbitrary width dimension, and is bonded to the skin contact sheet 18 by hot melt or heat sealing at an arbitrary expansion ratio. In the present embodiment, each elastic member 21a, 21b, 22a, 22b is used one by one. However, a plurality of elastic members may be used as necessary.
[0028]
The opening 20 can adopt any shape, and can be selected as appropriate, for example, a circle, an ellipse, or a star-shaped slit formed by intersecting two or more cuts.
[0029]
As described above, since at least four elastic members 21a, 21b, 22a, and 22b joined to the skin contact sheet extend from the front body 10F to the rear body 10R of the diaper 10, the skin contact sheet 18 is the top. The elastic member 21a, 21b, 22a, 22b is extended when worn, and the skin contact sheet 18 is in close contact with the wearer's skin while being worn. A gap 24 is formed between the skin contact sheet 18 and the stool is guided through the opening 20. For this reason, it is necessary to prevent the opening 20 of the skin contact sheet 18 from being blocked by the elastic force of the elastic members 21a, 21b, 22a, and 22b.
[0030]
In this embodiment, the skin contact sheet 18 in a state of being contracted by the elastic members 21a, 21b, 22a, and 22b when worn is pulled in the unfolded state as shown in FIG. The four elastic members 21a, 21b, 22a, and 22b that are surrounded and pulled in a straight line deform into a rhombus, but this deformation works almost evenly around the opening 20, and the opening 20 is blocked by the rhombus. It is held without. In addition, since the elastic members 21a, 21b, 22a, 22b are arranged on the outer edge of the skin contact sheet 18 in the width direction, the skin contact sheet 18 can contact the wearer's skin and prevent the displacement thereof. Even if the stool is not guided onto the top sheet 11 from the opening 20 of the skin contact sheet 18 and remains between the skin contact sheet 18 and the buttocks of the wearer, from the outer edge in the width direction of the skin contact sheet 18 It can function as a gather to prevent leakage.
[0031]
Note that the wearer's urine is quickly absorbed into the absorbent body 13 from the top sheet 11 without the skin contact sheet 18 through the cutout portion 19 of the skin contact sheet 18. In the above-described embodiment, the pant-type diaper 10 has been described. However, the present invention is an unfolded type in which the left and right sides of the front body 10F of the diaper 10 and the left and right sides of the back body 10R are overlapped and fastened with tape. Oh It can also be applied to diapers.
[0032]
Furthermore, as a joining pattern of the elastic members 21a, 21b, 22a, and 22b to the skin contact sheet 18, it is possible to adopt not only the above-described staking pattern but also patterns as shown in FIGS. Other examples of the present invention will be listed below, but members having the same functions as those of the above-described embodiments are designated by the same reference numerals, and redundant description will be omitted.
[0033]
That is, each of the embodiments shown in FIGS. 5 to 8 shows the skin contact sheet 18 in an unfolded state, and the embodiment shown in FIG. 21b passes through the crotch region so as to sandwich the opening 20 from one end in the width direction of the front body region, extends to one end in the width direction of the back body region, and the other pair of elastic members 22a and 22b The other end side in the width direction passes through the crotch region so as to sandwich the opening 20, and extends to the other end side in the width direction of the back body region. Accordingly, the elastic members 21b and 22b located on the outer side in the width direction of the skin contact sheet 18 are disposed along both side edges in the width direction of the skin contact sheet 18, but are elastic on the inner side in the width direction of the skin contact sheet 18. The members 21a and 22a are curved so as to surround the opening 20, and the opening 20 is surrounded by the pair of elastic members 21a and 22a. In this case, the elastic members 21a and 22b and the elastic members 21b and 22a can be arranged so as to overlap or intersect each other at the side edges of the opening 20, but do not overlap as shown in the figure. It is preferable to arrange.
[0034]
The reason is that if the elastic members 21a and 22b and the elastic members 21b and 22a intersect, the tension around the opening 20 becomes uneven, the skin contact sheet 18 may wrinkle, and the wearer may feel uncomfortable. is there. In addition, since the elastic members 21b and 22b work to bring the widthwise side edges of the skin contact sheet 18 into close contact with the wearer, the adhesiveness of the skin contact sheet 18 deteriorates when the elastic members 21a and 22a intersect. End up.
[0035]
In this embodiment, when the skin contact sheet 18 is pulled at the time of wearing, the elastic members 21b and 22b located at both side edges in the width direction extend, so that the opening 20 is pulled to both sides in the width direction and the elastic member at the same time. As in the previous embodiment, the deformation of the opening 20 surrounded by the elastic members 21a and 22a works almost evenly around the same, and the opening 20 is not blocked. Retained.
[0036]
In the embodiment shown in FIG. 6, one pair of elastic members 21a and 21b passes through the crotch region so that the opening 20 is sandwiched from one side edge of the front body region, and the other side edge of the front body region. The other set of elastic members 22a, 22b extends from one side edge of the back body region through the crotch region to the other side edge of the back body region so as to sandwich the opening 20 therebetween. ing. That is, the elastic members 21b and 22b cross each other beyond the opening 20, and the opening 20 is surrounded by the elastic members 21b and 22b. The elastic members 21a and 22b and the elastic members 21b and 22a can be arranged so as to overlap or cross each other, but it is preferable to arrange them so as not to overlap as shown in the figure.
[0037]
The reason is that when the elastic members 21a and 22b and the elastic members 21b and 22a intersect, the tension around the opening becomes uneven and the skin contact sheet 18 is wrinkled, which may give the wearer a feeling of strangeness. is there.
[0038]
Also in this embodiment, when the skin contact sheet 18 is pulled at the time of wearing, the elastic members 21b and 22b surrounding the opening 20 are held in an expanded state and are surrounded by the elastic members 21b and 22b as in the previous embodiment. The deformation of the opened opening 20 works almost evenly around the opening, and the opening 20 is held without being blocked.
[0039]
In the embodiment shown in FIG. 7, the notch 19 in the embodiment shown in FIG. 5 is eliminated, and a trapezoidal second absorbent body 25 is disposed in the front body region of the skin contact sheet 18 instead. The central cross-sectional shape from the front body to the back body is shown in FIG. That is, when the second absorbent body 25 is disposed in the front body region of the skin contact sheet 18, the thickness of the absorbent body 13 can be set to be thin overall, and the skin contact sheet 18 can be removed even after urination. Can be kept dry. In the present embodiment, the second absorbent body 25 covered with the cover sheet 18C is disposed on the back side of the liner sheet 18L. However, the second absorbent body 25 may be disposed between the upper sheet 18U and the liner sheet 18L. Is possible. The second absorbent body 25 may have the same structure as the previous absorbent body 13, but the polymer absorbent member and microfibril cellulose are dispersed in a mixed solution of propylene glycol, methanol and water. Apply the coating solution directly to the skin contact sheet, or apply the web formed by coating the nonwoven fabric made of synthetic fiber made from polyethylene, polypropylene, polyester, or other thermoplastic resin to the skin contact sheet. Are preferred.
[0040]
The microfibril cellulose described above is an ultrafine fiber having an average fiber length of 0.1 mm or less obtained by opening wood pulp under a high share.
[0041]
In the embodiment shown in FIG. 8, the notch 19 is eliminated and the second absorbent body 25 having a rhombus is arranged in the front body region of the skin contact sheet 18, but the embodiment shown in FIG. Further, elastic members 21c and 22c are added. The added elastic member 21c is arranged so that the bent end thereof faces the bent end of the other elastic member 22a. Similarly, the added elastic member 22c of the other set is It arrange | positions so that a bending end may oppose the bending end of one group of elastic members 21a. The opening 20 is surrounded by the elastic members 21a and 22b, and the second absorber 25 is surrounded by the elastic members 21b and 22a.
[0042]
By disposing the elastic members 21b and 22a in this way, the region where the second absorber 25 surrounded by the elastic members 21b and 22a is disposed forms a dent recessed by the contraction force of the elastic members 21b and 22a. The depression can function as a urine pool until urine is absorbed by the second absorber 25.
[0043]
It is possible to add a device as shown in FIGS. 10 to 12 to the shape of the absorbent body 13 in the crotch region so that stool and urine are not mixed, and still another embodiment of the present invention as described above. The members having the same functions as those of the above-described embodiment are designated by the same reference numerals, and redundant descriptions are omitted.
[0044]
That is, each of the embodiments shown in FIGS. 10 to 12 shows a structure in which the central part of the diaper 10 is broken from the front body 10F to the rear body 10R, and is shown in FIG. In the embodiment, a weir portion 13D positioned on the front body side of the opening 20 is formed in the crotch region immediately below the opening 20 over the width direction by increasing the thickness of the absorber 13, and the opening Considered so that the stool guided from the section 20 onto the top sheet 11 moves to the front body side and mixes with urine, and conversely, the urine from the front body side moves to the crotch region and does not easily mix with stool. Is.
[0045]
In addition, the embodiment shown in FIG. 11 forms a corrugated portion 20S that can suppress movement of feces on the surface of the absorbent body 13 from the crotch region facing the opening 20 to the back body region. A weir 26 is formed by the top sheet 11 along the width direction of the crotch region to prevent the stool guided to the corrugated portion 20S from moving to the front body region, and the upper end portion of the weir 26 contacts the skin contact sheet 18. It is arranged so that it touches.
[0046]
In the embodiment shown in FIG. 12, the thickness of the absorber 13 is reduced from the crotch region facing the opening 20 to the back body region to form a pocket portion 27, and the pocket portion 27 is guided from the opening 20 to the pocket portion 27. The stool is considered to be difficult to move on the top sheet 11.
[0047]
【The invention's effect】
According to the diaper of the present invention, only the longitudinal ends of the skin contact sheet disposed on the top sheet and extending from the front body to the back body are joined to the top sheet or the back sheet. A gap is formed between the top sheet and a portion other than the longitudinal ends. Since the elastic member that can be expanded and contracted in the stretched state is joined to the skin contact sheet so as to surround the opening provided in the crotch region of the skin contact sheet, the skin contact sheet can be brought into close contact with the wearer Upper, the opening is held in a state of being expanded by the extension force of the elastic member, and when there is defecation, the stool passes between the skin contact sheet and the top sheet through the opening. Voids The wearer's buttocks are not soiled, and as a result, the occurrence of skin troubles can be suppressed.
[0048]
Also, when two sets of two elastic members are arranged on the skin contact sheet so as to intersect and surround the opening, or at least two elastic members on one side of the front body of the diaper Extending from the edge part through the crotch region to the other side edge part of the front body so as to sandwich the opening part, and sandwiching the opening part from one side edge part of the back body of the diaper with at least two elastic members When the elastic member is extended to the other side edge portion of the back body, an almost uniform contraction force acts on the periphery of the opening portion. This can be reliably opened without being blocked.
[0049]
When a cutout is formed at the center in the width direction of the skin contact sheet, which is the front body region of the diaper, urine can be quickly absorbed by the absorbent body disposed between the top sheet and the back sheet. In this case, the wearer's buttocks can be kept dry by making the skin contact sheet liquid impermeable.
[0050]
In the case where the second absorbent body is disposed in the skin contact sheet portion that becomes the front body region of the diaper, urine can be quickly absorbed here so as not to be mixed with the stool.
[Brief description of the drawings]
FIG. 1 is a perspective view showing the appearance of an embodiment of a diaper according to the present invention.
FIG. 2 is a development view of the diaper shown in FIG.
3 is a cross-sectional view taken along arrow III-III in FIG.
4 is a central cross-sectional view from the front body to the back body of the diaper in the embodiment shown in FIG. 1. FIG.
FIG. 5 is a development view of another embodiment of the skin contact sheet used in the diaper according to the present invention.
FIG. 6 is a development view of another embodiment of the portion of the skin contact sheet used in the diaper according to the present invention.
FIG. 7 is a development view of still another embodiment of the skin contact sheet used in the diaper according to the present invention.
FIG. 8 is a development view of still another embodiment of the skin contact sheet used in the diaper according to the present invention.
9 is a central sectional view from the front body to the back body of the diaper in the embodiment corresponding to FIG.
FIG. 10 is a central sectional view from the front body to the back body of another embodiment of the diaper according to the present invention.
FIG. 11 is a central sectional view from the front body to the back body of another embodiment of the diaper according to the present invention.
FIG. 12 is a central sectional view from the front body to the back body of still another embodiment of the diaper according to the present invention.
[Explanation of symbols]
10 diapers
10F front body
10R back body
11 Top sheet
12 Back sheet
13 Absorber
13D weir
14 Waist opening
15 Elastic member around the waist
16 leg opening
17 Leg elastic member
18 Skin contact sheet
18E Longitudinal end of skin contact sheet
18U upper seat
18L liner sheet
18C cover sheet
19 Notch
20 opening
20S waveform section
21a, 21b, 21c, 22a, 22b, 22c Elastic member
23 tissue
24 Air gap
25 Second absorber
26 Weir
27 Pocket

Claims (10)

A diaper having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet,
The diaper is arranged on the top sheet so as to extend from the front body to the back body through the crotch region, and only both longitudinal ends thereof are joined to the top sheet or the back sheet, and both longitudinal ends thereof. and the skin contact sheet that form a gap between the portion other than the part and said top sheet,
An opening for guiding a stool to the gap formed in a part of the skin contact sheet that becomes a crotch region of a diaper;
A diaper comprising: a stretchable elastic member joined to the skin contact sheet in an extended state so as to surround the opening.   The diaper according to claim 1, wherein at least four of the elastic members extend from the front body to the back body of the diaper and pass through the vicinity of the opening.   3. The diaper according to claim 2, wherein two sets of the elastic members are arranged in a state of being struck on the skin contact sheet so as to intersect and surround the opening.   At least two of the elastic members extend from one side edge of the front body of the diaper to one side edge of the back body through the crotch region so as to sandwich the opening, and at least two of the above-mentioned elastic members The elastic member extends from the other side edge of the front body of the diaper to the other side edge of the rear body through the crotch region so as to sandwich the opening. 2. The diaper described in 2.   At least two of the elastic members extend from one side edge of the front body of the diaper to the other side edge of the front body through the crotch region so as to sandwich the opening, and at least two of the front members The elastic member extends from one side edge of the back body of the diaper to the other side edge of the back body through the crotch region so as to sandwich the opening. 2. The diaper described in 2.   The diaper according to any one of claims 1 to 5, wherein the elastic member is arranged so that a tension acts substantially evenly in a direction opposite to the opening.   The diaper according to any one of claims 1 to 6, wherein a notch portion is formed in a center portion in the width direction of the skin contact sheet which is a front body region of the diaper.   The diaper according to claim 7, wherein the skin contact sheet is liquid-impermeable.   The diaper according to any one of claims 1 to 6, wherein a second absorbent body is disposed in a portion of the skin contact sheet that becomes a front body region of the diaper.   The diaper according to claim 9, wherein the second absorbent body includes a mixture of a polymer absorbent member and microfibril cellulose, and is applied to the skin contact sheet.

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