JP6405490B1 - Disposable diapers - Google Patents

Abstract

Disclosed is a disposable diaper suitable for suppressing contamination with excretory stool.
A disposable diaper X according to the present invention includes at least a main body part 10, a chevron pad 30 that is a crack-opposing part, a tube 40, and a storage part 60. The main body 10 has a multilayer structure including an exterior inner sheet 12 and an exterior outer sheet 13. Preferably, the main body 10 has a multilayer structure further including a top sheet 11, and an absorption unit 20 is provided between the exterior inner sheet 12 and the top sheet 11 in the main body 10. The chevron pad 30 can contact the wearer's crack and has an opening 30a for receiving excretory stool. The tube 40 is for guiding excretion feces from the opening 30 a of the mountain pad 30 to the housing 60. The accommodating part 60 is for accommodating excretory stool separated from the wearer's body, and is located between the exterior inner sheet 12 and the exterior outer sheet 13.
[Selection] Figure 5

Description

  The present invention relates to a disposable diaper.

  Disposable diapers are frequently used as baby diapers and adult diapers. The disposable diaper includes a diaper main body having a form corresponding to a type such as a pants type or a so-called tape type, and an absorption unit that plays a role of absorbing excrement. The absorption unit has, for example, a polymer water-absorbing material having a large moisture absorption capacity, and most of the excreted urine from the disposable diaper wearer is absorbed by the absorption unit. About the technique regarding such a disposable diaper, it describes in the following patent documents 1-3, for example.

JP 2017-74113 A JP 2017-86565 A JP 2017-93931 A

  Conventionally, feces excreted from the wearer of the disposable diaper is received inside the diaper's wearer's body, and all or most of the stool is retained between the wearer's body and the diaper. The wearer's body is soiled by the excreted feces. In addition, when exchanging diapers after excretion, the body, such as the operator's hand, may become dirty due to excretion stool retained in the diaper.

  The present invention has been conceived under the circumstances as described above, and its purpose is to provide a disposable diaper suitable for preventing a wearer or a diaper changing worker from being contaminated with excrement stool. There is to do.

  The disposable diaper provided by the present invention includes a main body portion, a crack-opposing portion, a housing portion, and a fecal line. The main body has a multilayer structure including an exterior inner sheet and an exterior outer sheet. The exterior inner sheet is located on the inner side of the diaper than the exterior outer sheet. The rupture facing portion can contact the rupture portion of the wearer and has a distal end opening for receiving excretion feces. The accommodating portion is for accommodating excretion feces separated from the wearer's body, and is located between the exterior inner sheet and the exterior outer sheet. The fecal line is for guiding excretory stool from the distal end opening of the facing part of the rupture to the accommodating part, and is, for example, a flexible line made of a flexible material. The disposable diaper having such a configuration is worn by the user such that the fracture facing portion abuts the wearer's crack at a position and posture where the tip opening of the fracture facing portion faces the anus of the wearer. Is done. Further, the disposable diaper of the present invention may be configured as a pants type, may be configured as a so-called tape type, or may be configured as a combination of both types. There may be.

  The stool excreted from the wearer of such disposable diapers is received at the tip opening of the rupture-facing portion that comes into contact with the rupture portion of the wearer, and reaches the accommodation portion of the excrement through the flight line. sell. The above configuration in which the diaper is provided with a waste storage portion between the exterior inner sheet and the exterior outer sheet of the main body is suitable for retaining excretion stool from the wearer in a state separated from the wearer's body, Therefore, it is suitable for suppressing the wearer or his / her body from being contaminated with excreta. And when a diaper change operation | work is performed in the state in which the excrement feces were accommodated in the accommodating part about this diaper, a body, such as a worker's hand, is hard to get dirty. Moreover, the said structure that this diaper is equipped with the crack opposition part which has a front-end | tip opening part which is an excretion feces receiving opening | mouth, and can contact | abut to a wearer's crack part guides the excretion stool from a wearer to a storage part. It is suitable on the top, and it contributes to suppressing that a wearer and a diaper change worker get dirty with excretion feces.

  As mentioned above, this disposable diaper is suitable for suppressing that a wearer or a diaper changing operator gets dirty with excretion.

  The disposable diaper of the present invention preferably further includes a backflow suppression valve unit for suppressing the backflow of excretion feces from the above-described housing portion to the distal end opening of the rupture-facing portion. Preferably, the backflow suppression valve unit includes an on-off valve membrane that separates the end opening side of the crack-opposing portion and the accommodating portion side, and the on-off valve membrane has a plurality of cantilevers in which the free ends of each other are gathered. Includes valves. Each cantilever valve has, for example, a cantilever structure that gradually decreases in width toward the free end and has flexibility. Each cantilever valve preferably has a cut in the surface on the side of the tip opening. Each cantilever valve preferably has a rib portion on the surface on the tip opening side. This rib part has the shape extended in the direction which passes the free end of the said valve | bulb on the surface of the front-end | tip opening part side of a cantilever valve, for example. These configurations are suitable for maintaining the accommodation state of the excretory stool accommodated in the accommodating part, and consequently contribute to suppressing the wearer and the diaper changing operator from being contaminated with the excretory stool. A cantilever valve with a notch on the front opening side surface is used when the excretory stool passes through the opening / closing valve membrane in the forward direction from the front opening side of the rupture-facing portion to the accommodating portion side (in the case of forward passage). It is easy to be deformed and easy to open, and when excretory stool attempts to pass through the on-off valve membrane in the opposite direction, it is less likely to be deformed and less open than in the case of forward passage. Therefore, the above-described configuration in which the cantilever valve has a cut on the tip opening side surface is suitable for suppressing the backflow of excretion feces by the backflow suppression valve unit or the on-off valve membrane. In addition, the cantilever valve having the rib portion on the surface of the front end opening portion allows the above-described reverse passage of the excretory stool while maintaining the ease of deformation of the cantilever valve in the case of the above-described forward passage of the excretion In this case, it is preferable to ensure the difficulty of deformation of the cantilever valve.

  In the disposable diaper of the present invention, the on-off valve membrane of the backflow suppression valve unit or a set of cantilevered valves is provided, for example, at the end (terminal) on the accommodating portion side in the flight line. In such a case, this disposable diaper is preferably provided with a cover body for securing an open space on the accommodating part side in the opening / closing valve membrane or the cantilever valve at the end of the flight line. Such a configuration is suitable for preventing / suppressing the opening / closing valve membrane or the cantilever valve from being in contact with the exterior outer sheet or the like and hindering the opening operation thereof. It is suitable for securing the direction passage.

  The rupture-facing portion preferably has an adhesive portion around the tip opening for adhering around the anus. Such a configuration is suitable for receiving excretion stool from the wearer through the distal end opening of the rupture-facing portion, and is therefore suitable for guiding it to the accommodating portion.

  Preferably, the exterior inner sheet has an assembly opening, and the crack facing portion is assembled to the exterior inner sheet via an elastic material having elasticity in the assembly opening. The elastic material is, for example, a string rubber material or an elastic sheet material. According to such a configuration, when the disposable diaper of the present invention is worn, a good contact state or close contact state of the crack facing portion with respect to the wearer's cracked portion is realized by using a biasing force due to the elastic material. Therefore, the excretory stool from the wearer is easily received by the distal end opening of the rupture facing portion.

  When an elastic sheet material is adopted as the elastic material, the elastic sheet material and the crack-opposing portion preferably close the assembly opening of the exterior inner sheet. Such a configuration is suitable for keeping the excretory stool from the wearer in the housing part in a state separated from the wearer's body, and therefore, preventing the wearer and the diaper changing worker from being contaminated with the excretion stool. To contribute.

  The crack opposing portion preferably includes a tip apex portion where the tip opening is formed and a pair of inclined surface portions connected via the tip apex portion. The crack-opposing portion having such a configuration easily comes into contact with the cracked portion that is depressed in the wearer's body, with the tip opening facing the wearer's anus. Therefore, the crack opposing part of such a structure is easy to receive the excretion stool from a wearer in the front-end | tip opening part.

  In the disposable diaper according to the present invention, preferably, the fracture facing portion has a rear end opening portion or a base end opening portion larger than the opening portion on the side opposite to the tip opening portion, It extends to the accommodating portion side through the proximal end opening. According to such a configuration, when the flight line is the above-described flexible line, the end part (starting end) on the accommodation part side of the end part (starting end) on the crack facing part front end part side in the flexible line ( The end) is easy to take the lower position. The fact that the end of the flight line is likely to be positioned lower than the starting end is preferable in order to suppress the backflow of excretion in the flight line.

  The pair of inclined surface portions in the crack facing portion is preferably configured to be capable of opening and closing legs. That is, it is possible to perform both the leg movement in which the opening angle of the pair of inclined surface portions connected via the tip top side portion at the crack facing portion is large and the closing leg movement in which the opening angle is small after the leg opening. Moreover, it is preferable that the pair of inclined surface portions are configured. In such a crack-opposing portion, the opening size of the tip opening portion that opens at the tip apex portion increases as the pair of inclined surface portions open, that is, as the opening angle of the pair of inclined surface portions increases. There is a tendency. When such a crack-opposing portion is assembled to the exterior inner sheet via an elastic material at the assembly opening of the exterior inner sheet, the stool that is being excreted from the anus of the wearer's tear portion is exploded. When a pressing action is applied to the tip top side or tip opening of the facing part, the pair of inclined surface parts in the crack facing part assembled to the exterior inner sheet via the elastic material opens and the tip opening opens. The opening size of the part becomes large, and therefore excretion feces are easily received at the opening.

  The housing part preferably has a housing bag body arranged between the exterior inner sheet and the exterior outer sheet in the main body part. In such a configuration, excretory stool from the wearer of the present diaper is accommodated in the accommodation bag. The said structure is suitable for keeping excrement feces from a wearer in the state separated from the wearer's body, Therefore, it contributes to suppressing that a diaper wearer and a diaper change worker get dirty with excretion feces.

  The main body part of the disposable diaper of the present invention preferably has a multilayer structure that further includes a top sheet together with the above-described exterior inner sheet and exterior exterior sheet. In the multilayer structure, the top sheet is located on the inner side of the diaper, that is, on the wearer side, rather than the two exterior sheets. And it is preferable that this diaper is further equipped with the absorption unit which bears the function which absorbs excrement, such as excretion urine, between a top sheet and an exterior inner sheet.

It is a perspective view of the disposable diaper which concerns on embodiment of this invention. It is an expansion | deployment top view of the disposable diaper shown in FIG. It is a partial abbreviation expansion | deployment top view of the disposable diaper shown in FIG. FIG. 4 is a schematic cross-sectional view taken along line IV-IV in FIG. 2. It is a conceptual cross-section block diagram of the disposable diaper shown in FIG. It is a perspective view of one partial structure in the disposable diaper which concerns on embodiment of this invention. It is sectional drawing along line VII-VII of FIG. It is sectional drawing along line VIII-VIII of FIG. (A) is one top view of the on-off valve membrane which comprises the backflow suppression valve unit in the disposable diaper which concerns on embodiment of this invention, (b) is the other top view of the said on-off valve membrane, (c) FIG. 3 is an enlarged perspective view of one cantilever valve in the on-off valve membrane. The modification of the disposable diaper which concerns on embodiment of this invention is represented.

  1 to 5 show a diaper X which is an embodiment of a disposable diaper according to the present invention. 1 is a perspective view of the diaper X, FIG. 2 is a developed plan view of the diaper X, and FIG. 3 is a partially omitted developed plan view of the diaper X. 4 is a schematic cross-sectional view taken along line IV-IV in FIG. FIG. 5 is a conceptual cross-sectional configuration diagram of the diaper X.

  The diaper X is a disposable diaper including the main body 10, the absorption unit 20, the chevron pad 30, the tube 40, the backflow suppression valve unit 50, and the housing 60, and is configured as a pants type in the present embodiment. Has been. When using the diaper X, the diaper X is worn by the user so that the chevron pad 30 abuts on the cracked portion of the wearer.

  In the present embodiment, as shown in FIG. 1, the main body 10 has a pants-type shape with a waist opening 10a and leg openings 10b and 10b. The main body portion 10 is a sheet body having a planar view shape shown in FIGS. 2 and 3 in the unfolded state, and as shown in FIGS. 4 and 5, a top sheet 11 (omitted in FIG. 3). A multilayer structure including the exterior inner sheet 12 and the exterior outer sheet 13. In the multilayer sheet body, the main body 10 or the diaper X is three-dimensionalized through the joining of the end portions E and E shown in FIG. 2 and the joining of the end portions E ′ and E ′ shown in FIG. is there.

  The top sheet 11 forms a wearer side outermost layer in the main body 10 and has liquid permeability. Further, the top sheet 11 has an opening 11 a that opens at the place where the mountain-shaped pad 30 is disposed. For example, a predetermined portion such as around the opening 11 a is joined to the exterior inner sheet 12. For this joining, for example, a hot-melt adhesive can be used. Examples of the material for the top sheet 11 include a nonwoven fabric, a woven fabric, a mesh sheet, and a plastic film in which liquid permeation holes are formed. Examples of the constituent material of the fibers for forming the nonwoven fabric or woven fabric of the top sheet material include polyolefin, polyester, nylon, cellulose, rayon, and cotton. Examples of the polyolefin include polypropylene and polyethylene. Examples of the polyester include polyethylene terephthalate (PET) and polybutylene terephthalate. Moreover, the fibers for forming the nonwoven fabric or woven fabric of the topsheet material are preferably hydrophobic fibers or hydrophilic fibers whose surface has been made hydrophilic by surface treatment with a surfactant.

  The exterior inner sheet 12 and the exterior outer sheet 13 in the main body 10 have liquid impermeability for preventing the liquid in the excrement from permeating from the inside of the diaper X to the outside, and their outer edge ends. In this embodiment, the parts are joined over the entire circumference. For this joining, for example, a hot-melt adhesive can be used. The exterior inner sheet 12 has an opening 12a (assembly opening) that is an assembly location of the mountain pad 30. Examples of the material of each exterior sheet include a nonwoven fabric, a plastic film, and a laminate material of the nonwoven fabric and the plastic film. Examples of the constituent material of the fibers for forming the nonwoven fabric of the exterior sheet material include polyolefin, polyester, and nylon. The fibers for forming the nonwoven fabric of the exterior sheet material are preferably hydrophobic fibers. Such exterior outer sheet 12 and exterior outer sheet 13 may be waterproofed.

  The absorption unit 20 has a function of absorbing liquid components such as excreted urine in excrement in the diaper X, and as illustrated in FIG. 4, between the top sheet 11 and the exterior inner sheet 12 in the main body 10. It is arranged. Further, the absorption unit 20 is bonded to the top sheet 11 and / or the exterior inner sheet 12. For this joining, for example, a hot-melt adhesive can be used.

  Such an absorption unit 20 includes, for example, a sheet-like polymer water-absorbing material having a large moisture absorption capacity, and a liquid-permeable sheet for covering and holding the polymer water-absorbing material. Examples of the constituent material of the polymer water-absorbing material include polyacrylic acid resins, polyaspartic acid resins, and cellulose resins. Examples of the liquid permeable sheet include cotton-like pulp. Further, for example, water absorbent paper may be disposed between the absorption unit 20 or the liquid permeable sheet on the surface thereof and the above-described top sheet 11 in order to increase the liquid component moving speed toward the absorption unit 20. .

  The chevron pad 30 is a crack-opposing part that can come into contact with the wearer's cracked part, and as shown in FIGS. A pair of operable inclined surface portions 32. Specifically, the pair of inclined surface portions 32 connected via the apex portion 31 is configured so that an opening leg movement in which the opening angle becomes large and a closing leg movement in which the opening angle becomes small after the leg opening are possible. Has been. In the closed state of the pair of inclined surface portions 32, the mountain pad 30 has a shape in which a through path that penetrates the mountain pad 30 is formed with the openings 30 a and 30 b as open ends. The opening 30a is a tip opening for receiving excretion feces on the top side 31 side. The opening 30b is a base end opening located on the opposite side to the top side 31 in the mountain pad 30, and is larger than the opening 30a (the maximum diameter of the opening 30b is larger than the maximum diameter of the opening 30a). Is larger). Such a chevron pad 30 is made of a sponge material having both flexibility and shape recovery. Examples of the sponge material include cellulose sponge, polyurethane sponge, and melamine sponge. In addition, an adhesive portion 33 for adhering around the anus is provided around the opening 30 a in the top side portion 31 of the mountain pad 30.

  In addition, as shown in FIG. 3, the mountain pad 30 is assembled to the exterior inner sheet 12 of the main body 10 via the elastic member 14 at the opening 12 a. The stretchable material is a stretchable sheet material in the present embodiment. The mountain pad 30 and the stretchable sheet material block the opening 12 a of the exterior inner sheet 12. Examples of the stretchable sheet material include a sheet body having a laminated structure of a film-like elastic material or a net-like elastic material and a non-woven fabric bonded on one or both sides thereof. A string-like rubber material may be used as an elastic material instead of such an elastic sheet material.

  The tube 40 is a stool delivery route, and forms a route for leading excretory stool from the opening 30a of the mountain pad 30 to the accommodating portion 60 described later. It has an end 42. The end portion 41 of the tube 40 is connected to the opening 30 a of the mountain pad 30, and the tube 40 extends to the housing portion 60 side through the opening 30 b that can be formed in the mountain pad 30. Such a tube 40 is a flexible conduit made of a flexible material in the present embodiment, and is made of, for example, a plastic film or rubber.

  The backflow suppression valve unit 50 is for preventing / suppressing the backflow of excretion feces from the storage portion 60 described later to the opening 30a side of the mountain pad 30. In this embodiment, the backflow suppression valve unit 50 is connected to the end portion 42 of the tube 40. An opening / closing valve membrane is provided that separates the opening 30a side and the accommodating portion 60 side. As shown in FIG. 9, the on-off valve membrane includes a plurality of cantilever valves 51 in which the free ends 51a are gathered. The cantilever valve 51 has a cantilever structure that gradually decreases in width toward the free end 51a and has flexibility. The cantilever valve 51 has a plurality of cuts 51b on one surface thereof (surface 51S on the opening 30a side). The extending direction of the notch 51b and the extending direction of the cantilever valve 51 are preferably orthogonal to each other. Further, the cantilever valve 51 has a rib 51c on its surface 51S side. In the present embodiment, the rib 51c has a shape that extends in a direction that passes through the free end 51a of the cantilever valve 51. Such an on-off valve membrane or cantilever valve 51 is made of rubber, for example.

  The accommodating portion 60 is for accommodating excretory stool separated from the wearer's body, and is provided between the exterior inner sheet 12 and the exterior outer sheet 13 as shown in FIGS. 4 and 5. In the present embodiment, the accommodating portion 60 includes an accommodating bag body 61 in which the periphery of the opening is joined along the periphery of the opening 12 a of the exterior inner sheet 12. For joining, for example, a hot-melt adhesive can be used.

  When using the diaper X having the above-described configuration, the chevron pad 30 abuts against the wearer's crack at a position / posture where the opening 30a of the chevron pad 30 faces the wearer's anus. The diaper X is worn by the user. Then, the feces excreted from the wearer is received by the opening 30a of the mountain pad 30 that contacts the cracked portion of the wearer, and passes through the tube 40 to which the backflow suppression valve unit 50 is attached to the accommodating portion 60. It can be reached. The excretory stool is accommodated in the accommodation bag body 61.

  The above-described configuration in which the diaper X includes the excrement container 60 between the exterior inner sheet 12 and the exterior outer sheet 13 of the main body 10 is retained in a state where excretion from the wearer is separated from the wearer's body. Suitable for placement, and therefore suitable for preventing the wearer or his body from getting dirty with excretory stool. When the diaper changing operation is performed on the diaper X in a state where the excretory stool is accommodated in the accommodating portion 60, the body such as the operator's hand is not easily contaminated. Moreover, the above-mentioned structure that the diaper X has the mountain-shaped pad 30 which has the opening part 30a which is an excretion feces receiving opening | mouth, and can contact | abut to a wearer's crack part is the accommodation part 60 which contains excretion feces from a wearer. Therefore, it contributes to preventing the wearer and the diaper changing worker from being contaminated with excretory stool.

  As described above, the diaper X is suitable for suppressing the wearer and the diaper changing worker from being contaminated with excretory stool. Such a diaper X may be configured as an infant diaper or an adult diaper. The diaper X may be configured as a tape-type disposable diaper with a pair of fastening tapes, for example, a pair of fastening tapes instead of being configured as a pants-type disposable diaper as described above.

  Further, as described above, the diaper X is an opening / closing that separates the opening 30a side and the housing portion 60 side to prevent / suppress backflow of excretion feces from the housing portion 60 to the opening 30a of the mountain pad 30. A backflow suppression valve unit 50 as a valve membrane is further provided. As described above, the on-off valve membrane includes a plurality of cantilever valves 51 in which the free ends 51a of each other are gathered. As described above, the cantilever valve 51 has a cantilever structure that gradually decreases in width toward the free end 51a, has flexibility, and has a plurality of cuts 51b on the surface 51S on the opening 30a side. In addition, the rib 51c is provided on the surface 51S side. These configurations are suitable for maintaining the accommodation state of the excretory stool accommodated in the accommodating part 60, and contribute to suppressing the wearer and the diaper changing operator from being contaminated with the excretory stool. The cantilever valve 51 having the notch 51b in the surface 51S on the opening 30a side is when excretory stool passes through the opening / closing valve membrane from the opening 30a side of the mountain pad 30 to the housing 60 side (in the case of forward passage). It is easy to be deformed and open easily, and when the excretory stool is going to pass through the on-off valve membrane in the opposite direction, it is less likely to be deformed and less open than in the forward direction. Therefore, the above-described configuration in which the cantilever valve 51 has the cut 51b on the surface 51S is suitable for suppressing the backflow of excretion feces by the backflow suppression valve unit 50 or the on-off valve membrane. Further, the cantilever valve 51 having the rib 51c on the surface 51S side maintains the easiness of deformation of the cantilever valve 51 in the case of the above-described forward passage of excretory stool while passing the above-described reverse direction passage of excretory stool. In this case, it is preferable to ensure the difficulty of deformation of the cantilever valve 51.

  As described above, the chevron pad 30 is assembled to the exterior inner sheet 12 via the stretchable material 14 at the opening 12a of the exterior inner sheet 12. According to such a configuration, when the diaper X is worn, it is easy to realize a good contact state or close contact state of the mountain pad 30 with respect to the wearer's crack using the urging force due to the elastic material 14, Therefore, the excretion stool from the wearer is easily received by the opening 30 a of the mountain pad 30.

  In this embodiment in which an elastic sheet material is employed as the elastic material 14, the elastic material 14 and the mountain pad 30 close the opening 12a of the exterior inner sheet 12 as shown in FIG. Yes. Such a configuration is suitable for retaining the excretory stool from the wearer in the accommodating portion 60 in a state of being separated from the wearer's body, and thus prevents the wearer and the diaper changing operator from being contaminated with the excretion stool. Contribute to

  As described above, the chevron pad 30 includes the top side portion 31 in which the opening 30 a is formed and the pair of inclined surface portions 32 connected via the top side portion 31. The mountain-shaped pad 30 having such a configuration is easy to come into contact with a cracked portion that is depressed in the wearer's body while the opening 30a is opposed to the anus of the wearer. Therefore, the mountain-shaped pad 30 having such a configuration is easy to receive excretion from the wearer through the opening 30a.

  As described above, the chevron pad 30 has an opening 30b (base end opening) larger than the opening 30a on the side opposite to the opening 30a (tip opening), and the tube 40 opens. It extends to the accommodating part 60 side through the part 30b. According to such a configuration, the end portion (terminal end) on the accommodating portion 60 side of the tube 40 made of a flexible material can easily take a position below the end portion (starting end) on the mountain pad 30 opening portion 30a side in the vertical direction. It is preferable that the end of the tube 40 is easily positioned vertically below the start end in order to suppress the backflow of excretory stool within the tube 40.

  As described above, the pair of inclined surface portions 32 in the mountain pad 30 is configured to be capable of opening and closing legs. In such a mountain-shaped pad 30, the opening size of the opening 30a that opens at the top side 31 increases as the pair of inclined surface portions 32 opens, that is, as the opening angle of the pair of inclined surface portions 32 increases. It tends to grow. In the present embodiment in which such a mountain-shaped pad 30 is assembled to the exterior inner sheet 12 via the elastic member 14 at the opening 12a of the exterior inner sheet 12, it is being excreted from the anus of the wearer's cracked part. When a certain stool exerts a pressing action on the top side 31 or the opening 30a of the chevron pad 30, a pair of inclined surface portions 32 in the chevron pad 30 assembled to the exterior inner sheet 12 via the elastic material 14. The leg moves to increase the opening size of the opening 30a, and therefore, the excretion feces are easily received by the opening 30a.

  As shown in FIG. 10, the diaper X as described above may include a cover body 70 assembled to an end portion 42 (terminal) of the tube 40 that is a freight line. The cover body 70 is an opening cover having a function of ensuring or forming an open space on the accommodating portion 60 side in the on-off valve membrane of the above-described backflow suppression valve unit 50 or a set of cantilever valves 51 forming the same. A cylindrical body extending from the end 42. In the present embodiment, the cover body 70 has a cylindrical shape and has a cutout portion 70a on the opening end 71 side. Such a cover body 70 is made of a sponge material having both flexibility and shape returnability in addition to the shape maintenance property to the extent that the function can be exhibited. Examples of the sponge material include cellulose sponge, polyurethane sponge, and melamine sponge.

  The configuration that the diaper X includes such a cover body 70 is suitable for preventing and suppressing the cantilever valve 51 from coming into contact with the exterior outer sheet 13 and the like and preventing its opening operation. This is suitable for ensuring the above-described forward passage of excretory stool with respect to the on-off valve membrane. The configuration in which the cover body 70 has a cylindrical shape allows the cover body 70 to appropriately exhibit the shape maintaining property and the above-described open space securing function while adopting a relatively flexible material as the constituent material of the cover body 70. It is suitable. Further, the above-described cutout portion 70a in the cover body 70 can function as a passage opening for excrement feces and the like in a state where the opening end 71 side of the cover body 70 is in contact with the exterior outer sheet 13 and the like. Therefore, the configuration in which the cover body 70 has the cutout portion 70a is obtained when excretory stool or the like passes through the on-off valve membrane in the forward direction while the opening end 71 side of the cover body 70 is in contact with the exterior outer sheet 13 or the like. It is suitable for properly guiding the excretory stool and the like to the accommodating portion 60.

X Diaper 10 Main body 11 Top sheet 12 Exterior inner sheet 12a Opening (assembly opening)
13 Exterior outer sheet 14 Stretch material 20 Absorption unit 30 Mountain-shaped pad (cracking facing part)
30a opening (tip opening)
31 Top side (top side)
32 Inclined surface 40 Tube (Flight line)
41, 42 End 50 Backflow suppression valve unit 51 Cantilever valve 51a Free end 51b Notch 51c Rib (rib part)
60 accommodating part 61 accommodating bag body 70 cover body 70a notch part 71 opening end

Claims (13)

A main body having a multilayer structure including an exterior inner sheet and an exterior outer sheet;
A rupture-facing portion that is capable of contacting the rupture portion of the wearer and has a tip opening for receiving excretion feces;
An accommodation part located between the exterior inner sheet and the exterior outer sheet for accommodating excretion feces separated from the wearer's body;
A fecal line for guiding excretory stool from the distal end opening of the crack facing portion to the accommodating portion, and
The said crack opposition part is a disposable diaper including the front-end | tip top part in which the said front-end | tip opening part was formed, and the inclined surface part connected via the said front-end | tip top part, and the said inclined surface part can open / close leg operation.   The disposable diaper of Claim 1 further provided with the backflow suppression valve unit for suppressing the backflow of the excretion feces from the said accommodating part to the said front-end | tip opening part.   The backflow suppression valve unit includes an opening / closing valve membrane that separates the side of the tip opening portion and the side of the accommodating portion of the crack-opposing portion, and the opening / closing valve membrane includes a plurality of pieces in which free ends of each other are gathered. The disposable diaper according to claim 2, comprising a valve.   The disposable diaper according to claim 3, wherein the cantilever valve has a cut on a surface on the tip opening side.   The disposable diaper according to claim 3 or 4, wherein the cantilever valve has a rib portion on the side of the tip opening.   The opening / closing valve membrane is located at an end portion of the accommodation section side in the flight line, and a cover body for ensuring an open space on the accommodation section side in the cantilever valve of the opening / closing valve membrane The disposable diaper according to any one of claims 3 to 5, which is provided at the end portion.   The disposable diaper according to any one of claims 1 to 6, wherein the crack-opposing portion has an adhesive portion around the tip opening portion for adhering around the anus. The exterior inner sheet has an assembly opening,
The disposable diaper according to any one of claims 1 to 7, wherein the crack-opposing portion is assembled to the exterior inner sheet via an elastic material in the assembly opening.   The disposable diaper according to claim 8, wherein the elastic material is a string-like rubber material or an elastic sheet material.   The disposable diaper according to claim 9, wherein the stretchable sheet material and the crack facing portion close the opening for assembly of the exterior inner sheet.   The crack facing portion has a proximal end opening larger than the distal end opening on a side opposite to the distal end opening, and the stool passage passes through the proximal end opening of the housing portion. The disposable diaper according to any one of claims 1 to 10, which extends to the side.   The disposable diaper according to any one of claims 1 to 11, wherein the housing portion includes a housing bag body arranged between the exterior inner sheet and the exterior outer sheet in the main body portion. The main body has a multilayer structure further including a top sheet positioned closer to the wearer than the exterior inner sheet and the exterior outer sheet,
The disposable diaper according to any one of claims 1 to 12, further comprising an absorption unit positioned between the top sheet and the exterior inner sheet.

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