JP5002405B2 - Disposable diapers - Google Patents

Description

  The present invention relates to a disposable diaper that includes an absorbent body, a top sheet, and a back sheet, and further includes a skin contact sheet that is disposed above the top sheet and has an opening through which feces can pass.

  In recent years, as a diaper for infants or elderly people / handicapped persons, an absorbent body, a top sheet that is arranged so as to cover the upper surface of the absorbent body, and at least partially made of a liquid-permeable material, and a lower surface of the absorbent body Disposable diapers that are arranged so as to cover the back and are provided with a back sheet made of a liquid-impermeable material are widely used. By using the disposable diaper so that the surface of the top sheet is in contact with the skin of the wearer, the urine excreted by the wearer permeates the top sheet and is absorbed and held by the absorber. In addition, the back sheet excellent in leakage prevention prevents the excrement from leaking to the outside of the diaper.

  However, in the disposable diaper having the above-described configuration, although urine passes through the top sheet, most of the stool does not pass through the top sheet and remains on the top sheet. Since the stool remaining on the top sheet adheres to the wearer's crotch and buttocks, it requires cumbersome wiping work, which increases the burden of childcare and care, and also causes skin troubles for the wearer. It was. Such a problem becomes more apparent when the stool excreted by the wearer is soft stool.

  Therefore, a disposable diaper has been proposed in which another sheet body (hereinafter referred to as “skin contact sheet”) is disposed on the top of the top sheet (for example, Patent Documents 1 and 2). reference). In this disposable diaper, an opening (feces passage opening) through which stool can pass is formed in the skin contact sheet, and the feces excreted by the wearer through the stool passage opening are placed on the top sheet. Configured to fall.

  In the disposable diaper as described above, since the skin contact sheet first comes into contact with the skin of the wearer, the top sheet disposed at the lower part of the skin contact sheet is difficult to directly contact the wearer's skin. That is, the wearer's skin and the top sheet are separated from each other. In addition, a shielding layer called a skin contact sheet is interposed between the top sheet and the wearer's skin. Therefore, even if stool remains on the top sheet, it is possible to expect the effect of greatly reducing the chance that the stool and the skin of the wearer are in direct contact.

  By the way, when urine and stool are mixed, ammonia is generated, this ammonia makes the environment alkaline, the enzyme in the stool is strongly activated in an alkaline atmosphere, and the weak part of the skin is inflamed by this enzyme and ammonia, It has been reported that diaper rash occurs (for example, see Non-Patent Document 1).

  Therefore, in the disposable diaper described in Patent Document 2, a weir is formed on the crotch part of the diaper with a top sheet or an absorbent body, or the thickness of the absorbent body is reduced from the crotch part of the diaper to the back body side to form a pocket part. The mixture of urine and feces can be prevented to some extent by forming a stool. However, the urine and feces excreted by the wearer are still not separated and absorbed and retained, and the urine and feces may be mixed together. It was not fully satisfactory in that it was separated and absorbed and retained.

  Here, in patent document 3, the cyclic | annular ridge part which can surround at least one of a wearer's anus and urethral opening is directly fixed to an absorber (body fluid absorptive core material), and this cyclic | annular ridge part opens directly. A diaper forming part is disclosed. However, as seen in Patent Document 3, when the raised portion is directly fixed to the absorbent body (body fluid-absorbing core material) and the opening is directly formed by the raised portion, the degree of adhesion to the skin becomes weaker and the opening However, it is difficult to enter the excreted stool. In addition, since the bulge part plays the role of the opening part and the surrounding wall in the opening part at the same time, when the bulge part comes into contact with the wearer's skin, the opening part or the inside of the opening part is deformed and a stable opening shape cannot be maintained. The excreted stool is difficult to enter. That is, in Patent Document 3, a gap is easily generated between the annular ridge and the wearer's body, and urine, loose stool, etc. leak from the gap and may be mixed with each other to deteriorate the environment in the diaper. In addition, the opening cannot be held stably. As described above, in the diaper of the cited document 3, the urine / feces cannot be reliably separated, or even if separable, it is difficult to separate the urine / feces, and thus the urine excreted by the wearer is reliably separated and absorbed / held. However, there were still problems to be solved.

Utility Model Registration No. 2559050 (paragraph 0010, FIG. 2) JP 2002-11044 A (paragraph 0020, FIG. 1) Japanese Patent No. 3848617 Kazuya Yamamoto, Dermatology 30, p. 949-956 (1998)

  The present invention has been made to solve such problems of the prior art, and it is difficult for the excreted stool to be in direct contact with the wearer's skin, and the urine and feces excreted by the wearer are surely secured. The present invention provides a disposable diaper that can be separated and absorbed and retained, and can effectively prevent skin troubles.

  As a result of intensive studies to solve the problems of the prior art as described above, the present inventors have found that the above problem is achieved by providing a raised portion at the upper part of the skin contact sheet and the outer edge of the stool passage opening. As a result, the present invention has been completed. Specifically, the following disposable diapers are provided by the present invention.

[1] An absorber, disposed so as to cover the upper surface of the absorber, a top sheet made of at least a part of a liquid-permeable material, and disposed so as to cover the lower surface of the absorber, and impermeable to liquid A disposable diaper comprising: a back sheet made of a functional material; and a skin contact sheet in which a fecal passage opening is formed and disposed above the top sheet, wherein the feces formed in the skin contact sheet An opening stretchable material is disposed on the periphery of the passage opening, and the skin contact sheet is maintained in a state of being lifted from the top sheet by the tension of the opening stretchable material . the upper and outer edge of the flights passing opening, along the outer edge of the flights passing opening, Ri ridges formed in the raised shape name are arranged annularly, before Serial ridges on the top surface of the skin contact sheet, der Ru disposable diaper that bonded by an adhesive.

[ 2 ] The disposable diaper according to [1 ], wherein the raised portion is compressible.

[ 3 ] The disposable diaper according to [1] or [2] , wherein a contact surface of the raised portion that contacts the skin of the wearer is formed in an arch shape.

[ 4 ] The disposable diaper according to [1] or [2] , wherein a contact surface of the raised portion that comes into contact with the skin of the wearer is formed to be inclined toward the fecal passage opening.

  The disposable diaper of the present invention makes it difficult for the excreted stool to come into direct contact with the wearer's skin, and can reliably absorb and retain the urine and feces excreted by the wearer, effectively preventing skin troubles. It has an excellent effect of obtaining.

  Hereinafter, the best mode for carrying out the disposable diaper of the present invention will be specifically described by taking a two-piece type pant diaper as an example. However, the present invention broadly encompasses disposable diapers having the invention specific items, and is not limited to the following embodiments. In addition, about FIG. 4, for the convenience of drawing, it drawn in the form which left the leg elastic material from drawing.

  In addition, in this specification, when calling it "pants type diaper", like the disposable diaper 1 shown in FIGS. 1-3, the side edge parts (side edge part 2a, 6a) of the front body 2 and the back body 6 correspond. , The side edge portions 2b and 6b) are joined to form a joint portion 8, one waist opening portion 10 and a pair of leg opening portions 12a and 12b, which means a diaper configured in a pants shape in advance. Shall. And the “two-piece type” means an absorbent main body 14 that functions to absorb and retain the excrement of the wearer (absorption / holding function) and a function (wearing function) that encapsulates the wearer's body. It shall consist of the exterior member 16 to bear, and shall mean the diaper of the type by which the absorptive main body 14 was arrange | positioned inside the exterior member 16. FIG. As shown in FIG. 3, the absorbent main body 14 is a member that includes an absorbent body 22, a top sheet 18, and a back sheet 20 as components.

  In addition, in this specification, “front body” means a part that covers the abdomen (front of the body) of the wearer when a diaper is worn on the wearer, and “inseam” means that the wearer wears a diaper. When the wearer wears a diaper, the part covering the inseam of the wearer means the part covering the back side (back of the body) of the wearer.

[1] Configuration of the disposable diaper of the present invention:
The disposable diaper of this invention is arrange | positioned so that the upper surface of the absorber 22 and the said absorber 22 may be coat | covered like the disposable diaper 1 shown in FIGS. 1-3, At least one part consists of a liquid-permeable material. The top sheet 18 is disposed so as to cover the lower surface of the absorber, and the back sheet 20 made of a liquid-impermeable material and the feces passage opening 28 are formed and disposed above the top sheet 18. And a skin contact sheet 24. A raised portion 77 formed in a raised shape is disposed on the upper portion of the skin contact sheet 14 and in the vicinity of the opening for passing stool.

[1-1] Skin contact sheet:
The skin contact sheet 24 is a member for separating the wearer's skin and the top sheet 18. The skin contact sheet 24 is disposed on the top sheet 18 and has an opening 28 (stool passing opening 28 a) through which feces can pass. It is the formed sheet-like member. By providing the skin contact sheet 24, the skin contact sheet 24 first comes into contact with the wearer's skin, and therefore the top sheet 18 disposed below the skin contact sheet 24 is difficult to directly contact the wearer's skin. Become. That is, the wearer's skin and the top sheet 18 are separated from each other. That is, a shielding layer called skin contact sheet 24 is interposed between the top sheet 18 and the skin of the wearer. Therefore, even if the stool remains on the top sheet, it is possible to greatly reduce the chance that the stool and the skin of the wearer are in direct contact.

  As a material constituting the skin contact sheet, for example, a nonwoven fabric made of a resin such as polyethylene, polypropylene, or polyester, a mesh sheet, or a film can be used. Especially, it is preferable to use a nonwoven fabric in the point that the touch is favorable. These materials may be liquid permeable, liquid impermeable, or water repellent. However, a water repellent material (such as a water repellent nonwoven fabric) is preferable in that it can maintain a light touch (dryness) even when worn for a long time.

  The skin contact sheet needs to be formed with an opening (stool passing opening) through which the stool excreted by the wearer can pass. By adopting such a structure, the feces excreted by the wearer pass through the skin contact sheet and fall onto the top sheet, greatly reducing the chance of direct contact between the feces and the wearer's skin. It becomes possible.

  As long as the opening has a shape that allows stool to pass through, the shape is not particularly limited. That is, the "opening" through which stool can pass includes a so-called opening (hole) such as a circular opening, an oval opening, a rhombus opening, a linear slit, a cross-shaped slit, and three or more slits Also included are slits such as star-shaped slits that intersect. Among these, an elliptical opening or a star-shaped slit whose longitudinal direction is the longitudinal direction (longitudinal direction) of the diaper is preferable. The oval opening has the advantage that the stool is easy to pass through the opening of the skin contact sheet, and the star-shaped slit has the stool once passing through the opening of the skin contact sheet and falling on the top sheet. There is an advantage that it is possible to effectively prevent the skin contact sheet from being exposed again and contaminating the wearer's buttocks.

  For example, the disposable diaper 1 shown in FIG. 2 is an example in which an elliptical opening that is long in the front-rear direction of the diaper is formed as a stool passing opening 28a in a portion corresponding to the crotch part 4 of the diaper of the skin contact sheet 24. It is. The size of the hole or slit may be appropriately determined in consideration of the function of “passing stool”.

  In one preferred embodiment, the skin contact sheet 24 is formed with a urine passage opening 28b on the front body side of the stool passage opening 28a. In other words, the skin contact sheet 24 is preferably formed with a stool passage opening 28 a and a urine passage opening 28 b as the openings 28.

  By forming the urine passage opening 28b as described above, the urine excreted by the wearer through the opening 28b can surely flow into the space between the skin contact sheet 24 and the top sheet 18. It is possible to effectively prevent the situation where urine diffuses through the skin contact sheet 24 and causes side leakage from the diaper leg openings 12a, 12b, etc., and urine and feces are mixed. Can be effectively prevented.

  For example, the disposable diaper 1 shown in FIG. 2 has an elliptical urine that is long in the front-rear direction of the diaper, in addition to an elliptical stool passage opening 28 a that is long in the front-rear direction of the diaper, as the opening 28 in the skin contact sheet 24. A passage opening 28b is further formed, the stool passage opening 28a is formed in a portion corresponding to the crotch part 4 of the diaper, and the urine passage opening 28b is the front body 2 than the stool passage opening 28a. It is formed on the side part.

A stretchable material (opening stretchable material 30) is disposed on the periphery of the opening 28 . When the opening elastic member 30 is disposed, the skin contact sheet 24 is tensioned, so that the skin contact sheet 24 can have a firmness. Therefore, the skin contact sheet 24 can be prevented from falling to the top sheet 18 side, and there is an advantage that the skin contact sheet 24 can easily come into contact with the wearer's skin. In addition, by providing firmness to the skin contact sheet in this way, it becomes possible to support a raised portion described later via the skin contact sheet, and the raised portion is easy to be in close contact with the wearer's skin. It can be said.

  Further, when the opening elastic member 30 is disposed, the skin contact sheet 24 is contracted, and the top sheet 18, the absorbent body 22, and the back sheet 18 act to bend downward (on the exterior member 16 side). it can. Therefore, the skin contact sheet 24 can be kept floating from the top sheet 18, and the skin contact sheet 24 and the top sheet 18 can be reliably separated. Further, when the skin contact sheet 24 contracts, even if there is a gap between the skin contact sheet 24 or the top sheet 18 and the ventilated water-repellent sheet 52 serving as the urine / feces separation wall 48, the gap is filled. Can do. Therefore, the space between the skin contact sheet 24 and the top sheet 18 can be reliably partitioned.

  As the opening stretchable material, stretchable materials that have been used in conventional disposable diapers can be suitably used. Specific examples include elastic rubber, elastic film, elastic foam (urethane foam, etc.), etc., as well as thread rubber and flat rubber made of elastic materials such as natural rubber and synthetic rubber (urethane rubber, etc.). .

  The arrangement pattern of the opening stretchable material is not particularly limited as long as it is a pattern that can exert the above-described effect, but the opening stretchable material surrounds the periphery of the opening so as to make the stretching force act reliably on the opening. It is preferable to arrange in a pattern. For example, the opening stretchable material may be arranged in a pattern such as a circle, an ellipse, or a rhombus so as to surround the periphery of the opening.

  Also, a pattern in which two opening elastic members are used as the opening elastic members, and the two opening elastic members intersect at at least one point before and after the opening and surround a part of the periphery of the opening. It is also one of the preferable forms that it is arrange | positioned. When the opening stretchable material is arranged in such a pattern, it is possible to continuously arrange the opening stretchable material in the front-rear direction of the diaper, so that it is easy to continuously manufacture disposable diapers. Is preferable.

  For example, the disposable diaper 1 shown in FIG. 2 uses two opening elastic members 30a and 30b as the opening elastic members 30, and the two opening elastic members 30a and 30b are the stool passage opening 28a and the urine. This is an example in which the crossing is made at a point P between the passage openings 28b and the stool passage openings 28a and the urine passage openings 28b are partly surrounded by a pattern. When the opening elastic members 30a and 30b are arranged in such a pattern, it is possible to easily manufacture an absorbent main body continuous body in which the absorbent main body 14 is continuously arranged in the longitudinal direction.

  In addition, the disposable diaper 1 shown in FIG. 2 is arranged such that the opening elastic members 30 a and 30 b intersect at the center of the crotch part 4. By adopting such an arrangement, it is possible to exert a greater stretching force in the width direction (diaper left-right direction) in the crotch part 4 (that is, in the vicinity of the point P) than in the front body 2 side and the back body 6 side of the diaper. it can. Accordingly, the portion between the stool passage opening 28a and the urine passage opening 28b, which is relatively loose among the skin contact sheets 24, is more closely attached to the wearer's skin, and further, a raised portion described later. Has the effect of adhering to the skin of the wearer. Further, in the disposable diaper 1 shown in FIG. 2, the opening elastic members 30a and 30b do not intersect except at the central point P of the crotch part 4, and the rim and urine on the back body 6 side of the feces passage opening 28a It arrange | positions in the pattern by which the peripheral part by the side of the front body 2 of the opening part 28b for opening was open | released. By setting it as such an arrangement | positioning, since the front body 2 side and the back body 6 side of the skin contact sheet 24 do not adhere too much with respect to a wearer's skin, air permeability can be ensured. Therefore, sweating due to the contact of the skin contact sheet is suppressed, and stuffiness and skin trouble caused by sweat can be effectively prevented.

  The opening stretchable material as described above is fixed to the skin contact sheet by an adhesive or other means. The fixing method may be, for example, adhesion using a hot melt adhesive or other highly fluid adhesive, or may be welding by heat such as heat sealing or ultrasonic waves.

  The opening stretchable material is preferably fixed in an expanded state in order to cause a sufficient stretching force to act on the opening. For example, when the opening stretchable material is natural rubber or synthetic rubber, it is preferably fixed in a stretched state of 100 to 400%, and more preferably fixed in a stretched state of 200 to 300%. By fixing in the extended state in such a range, it is possible to cause a sufficient stretching force to act on the opening and to prevent the opening from being reduced more than necessary.

  The arrangement method of the opening stretchable material is not particularly limited. For example, like the disposable diaper 1 shown in FIG. 3, the skin contact sheet 24 is bonded to two sheet materials (upper sheet 24a and liner sheet 24b). It is preferable that the opening stretchable members 30a and 30b are sandwiched between the upper sheet 24a and the liner sheet 24b. Employing such an arrangement method is preferable because it exerts the effects of imparting an elastic force to the skin contact sheet with the minimum necessary elastic material and supporting the raised portion.

  The disposable diaper 1 shown in FIGS. 2 and 3 has a shape that covers the entire surface of the top sheet 18 as the skin contact sheet 24. However, the skin contact sheet in the disposable diaper of the present invention is not limited to such a sheet, and any sheet body disposed above the surface of the top sheet is sufficient.

  As a method for fixing the skin contact sheet, (1) like the disposable diaper 1 shown in FIG. 3, the sheet materials 32a and 32b constituting the three-dimensional gathers 26a and 26b and the top sheet 18 (or the back sheet 20) A method of fixing the skin contact sheet 24 so as to be sandwiched between the bonded portions, (2) a skin contact sheet on the inner surface of the three-dimensional gather, between the upper edge and the lower end edge (standing line) of the three-dimensional gather The method of fixing can be mentioned. Moreover, you may fix a skin contact sheet to the inner area | region enclosed by the solid gather which becomes a pair, without making it contact with a solid gather. For example, (3) a method of fixing a skin contact sheet to a bonded portion (so-called flap portion) between the top sheet of the absorbent main body and the back sheet in the region surrounded by the three-dimensional gather can be exemplified. Among these methods, the method (1) is preferable in that the effect of closely attaching the skin contact sheet to the wearer's skin is high.

[1-2] Raised portion:
The raised portion in the present embodiment is a member that is in close contact with the wearer's skin and eliminates a gap with the wearer's skin, and is formed in a raised shape. As shown in FIG. 3, the raised portion is disposed on the upper portion of the skin contact sheet 24. Here, although the skin contact sheet in the present embodiment also has a function that makes it easy to adhere to the skin of the wearer by using an elastic material, the shape of the buttocks of the wearer is various, and sometimes worn In some cases, there is a gap between the skin of the wearer and the skin contact sheet without being in close contact with the skin of the wearer. When such a gap is formed, urine and feces are not easily dropped into the opening, but urine and feces easily enter each opening through the gap, and urine and feces may be mixed. Therefore, in this embodiment, a raised portion formed in a raised shape is disposed on the skin contact sheet, and the raised portion and the skin of the wearer are brought into close contact with each other to eliminate a gap.

  Note that the bulging portion is formed in a bulging shape so that the position of the buttocks, particularly the anus, is surely held above the opening when the skin contact sheet has a certain height (bulging). It is easy.

  By disposing the skin contact sheet on the skin contact sheet in this way, the raised portion serves as a sealing material provided on the skin contact sheet, and further, as a so-called holding member for holding the wearer's skin on the skin contact sheet. It has the function of. That is, if the skin contact sheet is compared to a box without a lid for inserting feces, etc., the skin of the wearer becomes the upper lid, and the raised portion has an upper lid that is the skin of the wearer on the box without the upper lid. It fulfills the function as a member that adheres while being held. Therefore, by arranging the raised portions as described above, there is no risk that urine will enter the stool passage opening from the outside, and loose stools will not leak out of the stool passage opening and mix with urine. The urine feces can be reliably separated, and the effects of the present application can be achieved.

  Further, the raised portion is disposed so as to be located at the outer edge of the fecal passage opening. The reason why the raised portions are arranged in this manner is to reliably hold the wearer's buttocks above the opening and to drop feces excreted in the opening. Furthermore, it is for making a protruding part closely_contact | adhere to a wearer, eliminating a clearance gap, and preventing that a urine stool mixes. Here, the “outer edge” of the stool passing opening is, for example, the end of the opening 28 formed in the skin contact sheet, such as the raised portion 77 shown in FIG. 3 and the raised portion 77 shown in FIG. 4A. Not only the (edge of the skin contact sheet) part but also a part (edge part of the skin contact sheet) separated from the opening part 28, such as the raised part 79 shown in FIG. 4B. This is because even if the skin contact sheet is formed at a part away from the edge or the like, it is possible to hold the wearer's anus on the opening, and there is no problem in sealing performance. However, it is not preferable that the raised portions are disposed too far away from the edge of the skin contact sheet because the raised portions are difficult to adhere to the skin of the wearer and the above-described functions are hardly exhibited. Therefore, for example, as shown in FIGS. 3, 4 </ b> A, and B, it is more preferable that the raised portion is disposed between the upper periphery of the elastic members (30 a and 30 b) and the edge of the skin contact sheet. By being configured in this way, the raised portion is easily pushed up (or easily supported) via the skin contact sheet (or the elastic member disposed on the skin contact sheet), and the wearer's It can be firmly attached to the skin and there is no gap. That is, stool is less likely to leak and can be reliably prevented from mixing with urine.

Also, ridges, Ru disposed annularly along the outer edge for stool passing opening. This is because, by arranging the raised portions around the opening, it is possible to easily hold the wearer's skin above the opening and to easily drop the feces into the opening. Here, “annularly along the outer edge” is not limited to the one in which the ridges are arranged so as to be continuous around the stool passage opening, but the ridges around the stool passage opening. Also included are those in which a plurality of are arranged. For example, the ridge 77 shown in FIG. 2 is an example in which the ridges are arranged around the stool passage opening. By comprising in this way, since a wearer's skin can be reliably hold | maintained on an opening part and it plays the role as a sealing member, it can be said that it is a preferable form. Further, for example, as a configuration in which a plurality of raised portions are arranged, a raised portion 81 shown in FIG. 5 can be cited. In this way, by arranging the ridges on the front and rear sides and both edge sides of the feces passage opening, the ridges arranged on the front and rear sides can be made without contaminating the genital area, and the ridge portions arranged on both edge sides are lateral. It is preferable because leakage can be prevented and the effects of the present application can be achieved. Note that FIG. 5 illustrates the raised portion and its peripheral members, and other members and the like are omitted as appropriate for convenience of explanation.

Moreover, the example which has arrange | positioned the protruding part in the front and back or both sides of the opening part for stool passage is shown. For example, FIG. 6, Ri Reidea arranged before and after the ridge 78 stool passing opening, FIG. 7 is an example in which a raised portion 83 on both edge sides for stool passing opening. 6 and 7 illustrate the raised portion and its peripheral members, and other members and the like are omitted as appropriate for the convenience of explanation.

  In addition, although the opening part mentioned above demonstrated the case where a protruding part was arrange | positioned in the periphery of the circular or elliptical opening part, For example, about a rhombus opening part, a linear slit, a cross-shaped slit, three or more slits, etc. Also, the effects of the present application can be achieved by arranging the raised portions in the same manner as described above. For example, in the case of a rhombus opening, ridges may be arranged so as to surround the rhombus-shaped outer shape, or surround the rhombus shape by a circle (or an ellipse) or the like, or the rhombus-shaped outer shape The raised portions may be arranged at several points along the circle or at several points when the diamond shape is surrounded by a circle (or an ellipse) or the like. In addition, for example, in the case of a linear slit, a cross-shaped slit, three or more slits, etc., it may be arranged so as to surround all of the periphery of the slit, and raised portions are provided at several locations around the slit. You may arrange.

  The raised portion is preferably formed from a material that is compressible. Further, it is preferable that a material having a hydrophobic surface and a good touch is disposed. Specifically, a foamed resin can be used as a material for the raised portion. For example, a foamed resin obtained by adding a foaming agent or the like to a raw material selected from polyurethane (polyol and isocyanate), polyethylene, polypropylene, or polystyrene and extruding into a mold having a sheet shape, a ring shape, or other desired shape can be used. Since these materials are not directly touched on the surface, it is preferable to use a non-woven fabric made of a thermoplastic resin as a raw material. Moreover, it can use in the state which bundled and fixed the bundle (tow) of the fiber of the synthetic resin as a protruding part.

  Regarding the hardness of the raised portion, it is required to be able to adhere with pressure that is gentle to the wearer's skin and to be in close contact with the wearer with a certain degree of elasticity. Since this characteristic needs to be achieved in a state where it is disposed on the upper part of the skin contact sheet, it cannot be defined unconditionally by the ridge alone, but for example, hardness (JIS K 6400-2) which is an index indicating the characteristic of the foam ) Can be selected from the range of 20 to 150N. If it is the thing of this range, since the effect of this application can be show | played, it is preferable.

  Moreover, it is preferable that a protruding part has a contact surface which contacts a wearer's skin, and the contact surface is formed in arch shape. It is because it can contact a wearer's skin gently. For example, it becomes easy to fit a wearer's skin gently by forming in the arch shape like the protruding part 77 shown by FIG. Therefore, not only can skin trouble be prevented, but the fit is improved, so that it is difficult to form a gap, and urine and feces can be reliably separated.

  Moreover, it is one preferable form that the contact surface of the raised portion that comes into contact with the wearer's skin is formed to be inclined toward the fecal passage opening. For example, as shown in FIG. 8A, one end 88a of the raised portion is formed as a gently inclined surface toward the other end 88b of the raised portion (toward the stool passage opening), thereby This is preferable because the contact surface gently fits the wearer's skin to improve the tactile sensation during wearing, and the position of the wearer's anus can be easily held on the opening. Also, for example, as shown in FIG. 8B, one end 90a of the raised portion is formed as an inclined surface further inclined than FIG. 8A toward the other end 90b of the raised portion (toward the fecal passage opening). May be. However, it is preferable that one end (88a, 90a) and the other end (88b, 90b) of each raised portion in FIGS. 8A and 8B are rounded by rounding. This is because if there are corners at one end and the other end of the raised portion, the tactile sensation of wearing is deteriorated, which may cause skin trouble. 8A and 8B are schematic views in which the skin contact sheet and the raised portions arranged on the skin contact sheet are enlarged, and are partially enlarged views. For convenience of explanation, peripheral members are appropriately omitted. It is shown in the figure.

  In addition, it is preferable to form and arrange | position the protruding part arrange | positioned at a urine passage opening part by the structure similar to the protruding part mentioned above.

[1-3] Absorber:
The absorber is a member for absorbing and holding the wearer's urine. The absorber is made of an absorbent material because it needs to absorb and retain the wearer's urine and body fluid.

  Examples of the absorbent material constituting the absorber include conventionally known absorbent materials usually used for disposable diapers and other absorbent articles, such as fluff pulp, super absorbent polymer (Super Absorbent Polymer; hereinafter referred to as “SAP”). And a hydrophilic sheet. It is possible to use wood pulp or non-wood pulp defibrated as fluff pulp, sodium polyacrylate as SAP, tissue, absorbent paper, hydrophilized nonwoven fabric as hydrophilic sheet preferable.

  These absorbent materials are usually used as a single-layer or multi-layer mat. Under the present circumstances, 1 type may be used independently among the said absorptive materials, and 2 or more types may be used together. Especially, what used together about 10-500 mass parts SAP with respect to 100 mass parts of fluff pulp is preferable. At this time, the SAP may be uniformly mixed in each mat of fluff pulp, or may be arranged in layers between the layers of the multilayer fluff pulp.

  It is preferable that the absorber is interposed at least in part between the top sheet and the back sheet. Usually, the absorber is interposed between the top sheet and the back sheet by being sandwiched between the top sheet and the back sheet and sealing the peripheral edge thereof. Therefore, the flap part in which the absorber is not interposed is formed between the top sheet and the back sheet at the peripheral part of the absorber.

  It is preferable that the absorber is entirely wrapped with a hydrophilic sheet. Such a configuration has an advantage that SAP can be prevented from leaking from the absorber and shape stability can be imparted to the absorber.

  Although there is no restriction | limiting in particular about the shape of an absorber, The shape used in the conventional disposable diaper and other absorbent articles, for example, a rectangular shape, an hourglass type, a gourd type, a T shape etc. can be mentioned.

[1-4] Top sheet:
A top sheet is a sheet | seat arrange | positioned so that the upper surface (surface located in a wearer's skin side at the time of mounting | wearing of a diaper) may be coat | covered. Since the top sheet needs to absorb the wearer's urine in the absorber disposed on the lower surface side thereof, at least a part (the whole or a part thereof) is made of a liquid-permeable material.

  Examples of the liquid permeable material constituting the top sheet include a woven fabric, a nonwoven fabric, and a porous film. Among these, it is preferable to use a non-woven fabric made of a thermoplastic resin such as polypropylene, polyethylene, polyester, or nylon and subjected to a hydrophilic treatment.

  The top sheet may be composed of a single sheet material, but may be composed of a plurality of sheet materials. For example, in a tape-type diaper described later, a top sheet (center sheet) made of a liquid-permeable material is disposed at the center of the diaper, and a top sheet (side sheet) made of a water-repellent material is disposed on the side flap portion of the diaper. A form of arranging is often used.

[1-5] Backsheet:
A back seat | sheet is a sheet | seat arrange | positioned so that the lower surface (surface located in a wearer's clothing side at the time of mounting | wearing of a diaper) may be coat | covered. The back sheet is made of a liquid-impermeable material because it is necessary to prevent the wearer's urine from leaking outside the diaper.

  Examples of the liquid-impermeable material constituting the backsheet include a liquid-impermeable film made of a resin such as polyethylene. Among these, a microporous polyethylene film is preferably used. This microporous polyethylene film has a large number of fine pores of 0.1 to several μm, and is liquid impervious but has moisture permeability, so that the inside of the diaper can be prevented from being steamed There is.

  Note that a sheet material (cover sheet) may be bonded to the outer surface of the back sheet. This cover sheet is used to reinforce the back sheet and improve the feel (tactile feeling) of the back sheet.

  Examples of the material constituting the cover sheet include woven fabric and non-woven fabric. Especially, it is preferable to use the dry nonwoven fabric and wet nonwoven fabric which consist of thermoplastic resins, such as polyethylene, a polypropylene, and polyester.

[1-6] Absorbent body:
In the two-piece type pants-type diaper, the top sheet, the back sheet, and the absorbent body are configured as one member called an “absorbent body” that is responsible for absorption and holding functions, and an exterior member that is manufactured separately. A disposable diaper is formed by joining. Like the sanitary napkin, this absorbent main body has a top sheet on the upper surface side of the absorbent body and a back sheet on the lower surface side. The absorbent body is interposed between the top sheet and the back sheet. It has a structured. For example, the disposable diaper 1 shown in FIGS. 3 and 4 and the disposable diaper 100 shown in FIGS. 8 and 9 sandwich the absorbent body 22 between the top sheet 18 and the back sheet 20 and seal the periphery of the absorbent body 22. This is an example in which the absorbent main body 14 having a structure in which an absorber 22 is interposed between a top sheet 18 and a back sheet 20 is configured by wearing.

  An absorptive main body is comprised by the size which covers at least the crotch part of a diaper. However, in order to ensure the effect of preventing leakage, it is preferable to have a size that covers not only the crotch part but also a part of the front body and the back body. The absorptive main body can be fixed to the exterior member using, for example, a hot melt adhesive.

[1-7] Urine / feces separation wall:
In order to ensure the effects of the present application, it is preferable to provide a urine / feces separation wall. Here, the urine / feces separation wall is a member for separating the urine excreted by the wearer from the stool, is constituted by a breathable water-repellent sheet, and is disposed in a space between the skin contact sheet and the top sheet. . By providing this urine / feces separation wall, the space between the skin contact sheet and the top sheet is partitioned into the front body side and the back body side with the urine / feces separation wall as a boundary, and urine is separated into the space on the front body side. The stool is guided to the space on the back body side. In addition, since the urine / feces separation wall is formed of a breathable water-repellent sheet, urine that has passed through the sheet and is guided to the front body side does not ooze out to the back body side. Therefore, mixing of urine and stool can be effectively prevented, and occurrence of diaper rash due to mixing of urine and stool is effectively suppressed.

  The urine / feces separation wall is preferably composed of a breathable water-repellent sheet. By being configured in this manner, the breathable water-repellent sheet has low liquid permeability, and therefore effectively prevents urine and soft stool from seeping out from the urine / feces separation wall and mixing the urine and stool. Is possible. In addition, it is conceivable that the urine / feces separation wall is constituted by a liquid-impermeable sheet used for a back sheet. However, when a liquid-impermeable sheet such as a plastic film is used, (1) There is a problem that stuffiness is likely to occur because it is not provided, and (2) the fit with the wearer's body is low due to poor flexibility and shape followability. Moreover, when exposed from the opening part of a skin contact sheet and contacting a wearer's body, there exists a possibility of producing the malfunction that (3) the touch is bad and the wet feeling remains on the surface easily. Therefore, by configuring the urine / feces separation wall with a breathable water-repellent sheet, it is possible to exert an excellent effect of preventing the wearer's excreted urine and stool from being mixed while preventing the above-described problems. It becomes.

  Nonwoven fabrics such as spunbond and card embossing may be used as the constituent material of the breathable water repellent sheet, but SMS (spunbond / meltblown / spunbond), SMMS (spunbond / meltblown) are used because of their high water pressure resistance. / Melt blow / spun bond) or the like is preferably used.

  The ventilated water-repellent sheet can form a urine / feces separation wall by joining one end to the skin contact sheet and hanging the other end to the surface of the top sheet. Thus, by joining one end of the breathable water repellent sheet to the skin contact sheet, it is possible to prevent urine and feces from moving through the space above the urine / feces separation wall. Moreover, it is preferable that the other end of the ventilation water-repellent sheet is joined to the top sheet. By joining the other end of the breathable water repellent sheet to the top sheet, the urine / feces separation wall is firmly fixed without being displaced, so the space between the skin contact sheet and the top sheet is the front body side and the back It is surely partitioned from the body side.

  For example, in the disposable diaper shown in FIG. 9, one end of the air-permeable water-repellent sheet 52 constituting the urine / feces separation wall 48 is joined to the surface (lower surface) of the liner sheet 24b constituting the skin contact sheet 24, and the other end is top. In this example, the sheet is dropped to the surface of the sheet 18 and bonded to the surface (upper surface) of the top sheet 18.

  For example, as shown in FIG. 9, by increasing the distance between one end (skin contact sheet side joint) and the other end (top sheet side joint) of the breathable water repellent sheet, It is preferable to make the standing height high. This is because the skin contact sheet and the top sheet can be reliably separated. In this case, the breathable water repellent sheet is preferably folded once or plural times between one end and the other end thereof.

  As a method of folding the breathable water repellent sheet, the cross section of the breathable water repellent sheet as viewed from the side is Z-shaped (folded twice), M-shaped (folded three times), and accordion (folded many times). And the like.

  In the disposable diaper of the present invention, the surface of the top sheet immediately below the stool passing opening or the urine passing opening may be covered with the folded portion of the breathable water repellent sheet. Since the folded part of the ventilated water repellent sheet is not joined to the top sheet and can move freely, it is difficult to cause problems such as the absorption of urine into the absorber and the cause of urine leakage as already described. Because.

  On the other hand, the disposable diaper of the present invention is also one of preferred embodiments in which a part of the surface of the top sheet is covered with a breathable water-repellent sheet. With such a configuration, urine that has passed through the top sheet from the space on the front body side moves to the back body side without being absorbed by the absorbent body, and even if it oozes from the surface of the top sheet, There is an advantage that it is possible to prevent a situation where the stool is in direct contact.

  When two openings, a stool passage opening and a urine passage opening, are formed in the skin contact sheet, a urine / feces separation wall should be disposed between the stool passage opening and the urine passage opening Is preferred. By arranging the urine / feces separation wall at such a position, the space between the skin contact sheet and the top sheet is divided into a space communicating with the stool passage opening and a space communicating with the urine passage opening. Can do. Urine and feces excreted by the wearer can be more reliably separated. For example, the disposable diaper 1 shown in FIG. 4 has a urine / feces separation wall 48 between the stool passage opening 28a and the urine passage opening 28b so as to partition the front body 2 side and the back body 6 side of the diaper. This is an example of arrangement.

  The length of the ventilated water-repellent sheet constituting the urine / feces separation wall is not particularly limited, and the height of the urine / feces separation wall (the distance between the skin contact sheet and the top sheet), the size of the folded portion, A desired length may be used in consideration of the joining position and the like.

[1-8] Exterior member:
The exterior member is a member having a mounting function for encapsulating the wearer's body, and specifically, is a sheet-like member that forms the front body, the crotch portion, and the back body.

  In the two-piece type pants-type diaper, the absorbent main body serves exclusively for the absorption / holding function of absorbing and holding the excrement of the wearer, so a liquid-impermeable material as a material constituting the exterior member There is no need to use. Examples of the material constituting the exterior member include a nonwoven fabric composed of synthetic fibers made of polyethylene, polypropylene, polyester, and other thermoplastic resins.

  And in order to fix an exterior member in the state which pinched | interposed the elastic material etc. around the leg, it is often configured by bonding two or more nonwoven fabrics together. For example, in the disposable diaper 1 shown in FIG. 2 and the disposable diaper 100 shown in FIG. 7, the exterior member 16 is composed of two nonwoven fabrics, and the leg elastic member 40 and the waist elastic member 42 between the two nonwoven fabrics. And it is the example which pinched and fixed the elastic material 44 around the abdomen.

[1-9] Various elastic materials:
In a pants-type disposable diaper, it is common to arrange an elastic material around the legs, arrange an elastic material around the waist, and more preferably arrange an elastic material around the abdomen.

  The leg circumference elastic material is an elastic material arranged along the leg circumference opening. By arranging the leg-stretchable material, a gather (leg gather) rich in stretchability can be formed in the leg-surrounding opening. Therefore, it is difficult to form a gap around the leg, and urine leakage from the opening around the leg can be effectively prevented.

  The waist elastic material is an elastic material arranged along the waist opening. By arranging the elastic material around the waist, a gather (waist gather) rich in elasticity can be formed in the waist opening. This waist gather makes it difficult for gaps to be formed around the waist, preventing urine leakage from around the waist, and improving the fit of the diaper to the wearer, thereby preventing the diaper from falling down.

  An abdominal circumference elastic material is an elastic material arrange | positioned in the part (namely, part equivalent to a wearer's abdominal circumference) between a waist circumference opening part and a leg circumference opening part. By arranging the elastic material around the abdomen, it is possible to form a highly elastic tammy gather around the abdomen of the wearer. This Tammy Gather, together with West Gather, can make the diaper fit and anti-slip effect even better.

  In the disposable diaper 1 shown in FIGS. 1 and 2, a plurality of leg-holes elastic members 40 are arranged on the periphery of the leg-hole openings 12 a and 12 b, and the waist-hole opening is provided on the periphery of the waist-hole opening 10. A plurality of waist elastic members 42 are disposed so as to surround 10, and a portion between the waist opening 10 and the leg openings 12 a and 12 b (that is, a portion corresponding to the wearer's abdomen). This is an example in which a plurality of belly stretchable members 44 are arranged so as to surround the wearer's belly.

  About these elastic materials, the structure similar to the opening part elastic material already described is employable. Then, after considering the degree of gather contraction and the like, the constituent material, the elongation rate of the material, the stretched state at the time of fixing, etc. may be determined.

[1-10] Solid gather:
In order to prevent side leakage of urine excreted by the wearer, a three-dimensional gather may be provided. The three-dimensional gather is a member for preventing side leakage of the urine excreted by the wearer, and is a leak-proof wall configured to stand up three-dimensionally. By forming such a three-dimensional gather, urine is excreted on the skin contact sheet, and even if urine diffuses through the skin contact sheet, the three-dimensional gather becomes a breakwater, and the opening around the leg of the diaper Etc. (so-called “lateral leakage”) can be effectively prevented.

  The structure of a three-dimensional gather can employ | adopt the structure used for the conventional disposable diaper and other absorbent articles. For example, it is possible to suitably use a stretchable material (three-dimensional gather stretchable material) disposed on a part of the ventilated water-repellent sheet, and a sheet (gather) formed on the sheet material by the three-dimensional gather stretchable material.

  The disposable diaper 1 shown in FIGS. 2 and 3 has sheet materials 32 a and 32 b that are completely different from the top sheet 18 and the back sheet 20 attached to both side edges of the absorbent main body 14 and three-dimensionally from the standing line 38. In this example, a pair of solid gathers 26a and 26b is formed by using a structure that can stand up. In this example, the end portions of sheet materials 32a and 32b (the end portions corresponding to the upper end edges 34 of the three-dimensional gathers 26a and 26b) are folded back, and two three-dimensional gather expansion / contraction materials 36a and 36b or three-dimensional gathers are formed at the folded portions. It arrange | positions so that the expansion-contraction materials 36c and 36d may be inserted | pinched.

[2] Manufacturing method:
Hereinafter, an example of the method of manufacturing the disposable diaper of the present invention will be described with reference to an example of manufacturing the disposable diaper 1 (two-piece type pants-type diaper) shown in FIGS.

[2-1] Production of absorbent main body:
An absorber 22 wrapped in a hydrophilic sheet is disposed on the upper surface of the back sheet 20, and a top sheet 18 is disposed on the upper surface. Next, the absorbent main body 14 is obtained by sealing the periphery of the absorbent body 22 so as to be sandwiched between the top sheet 18 and the back sheet 20.

[2-2] Production of skin contact sheet:
The upper sheet 24a is bonded to the upper surface of the liner sheet 24b while arranging the two opening stretchable members 30a and 30b in a predetermined pattern. At this time, the two opening elastic members 30a and 30b intersect at a point P between the feces passage opening 28a and the urine passage opening 28b to be formed later, and the feces passage opening 28a and the urine passage It arrange | positions in the pattern which surrounds a part of periphery of the opening part 28b for an object.

  Next, the stool passage opening 28a and the urine passage opening 28b are formed in the liner sheet 24b and the upper sheet 24a which are bonded together. By doing so, the two opening elastic members 30a and 30b intersect at a point P between the fecal passage opening 28a and the urine passage opening 28b, and the feces passage opening 28a and the urine passage opening. A skin contact sheet 24 having a two-layer structure arranged in a pattern surrounding a part of the periphery of 28b is obtained.

  Furthermore, one end 54 of the Z-folded vent water-repellent sheet 52 (which will later become the urine / feces separation wall 48) is the surface (lower surface) of the liner sheet 24b, and the feces passage opening 28a and the urine passage opening 28b. Affixed to a position between, joined, and fixed (joined portions 62a, 62b, 62c, 62d). By doing so, the skin contact sheet 24 to which the air-permeable water-repellent sheet 52 to be the urine / feces separation wall 48 later is attached is obtained. At this time, the ventilated water-repellent sheet is not limited to the Z-folded one, and a plurality of folded structures may be used. This fixing is performed by a conventionally known bonding method used when manufacturing disposable diapers such as bonding with an adhesive such as a hot melt adhesive, heat sealing, ultrasonic sealing, heat bonding with an embossing roll, pressure bonding, or the like. be able to. The disposable diaper 1 shown in FIG. 4 is an example in which one end 54 of a breathable water-repellent sheet 52 is attached to the surface (lower surface) of the liner sheet 24b with a hot melt adhesive, and bonded and fixed.

[2-3] Production of raised portion:
FIG. 10A shows a method in which the foamed resin is molded in advance according to the shape of the raised portion and the opening, and a non-woven fabric is bonded together if necessary, and is bonded to the vicinity of the fecal passage opening of the skin contact sheet. When the non-woven fabric is bonded to the surface of the foamed resin sheet 93 formed with the shape of the raised portion 77 and bonded in the vicinity including the skin contact sheet 24, the stool passage opening 28 is formed when FIG. As shown in FIG. 5, there is a method of cutting the foamed resin sheet 93 into the shape of the fecal passage opening 24 as well. Bonding is performed by bonding with an adhesive such as a hot melt adhesive, or by heat bonding, heat sealing with an ultrasonic seal, an embossing roll, or pressure bonding. In addition, FIG. 10A is a schematic diagram illustrating a method for manufacturing a raised portion using the above-described cutting method, and is a schematic diagram illustrating a state before the foamed resin sheet is cut. FIG. 10B is a schematic diagram showing a method for producing a raised portion using a cutting method, and is a schematic diagram showing a state after cutting a foamed resin sheet. Further, the members around the fecal passage opening 28 are omitted in the figure for convenience of explanation.

[2-4] Production of solid gathers:
One end of the sheet material 32a (32b) is folded, and the three-dimensional gathers 26a (26b) are bonded together by sandwiching the two three-dimensional gather elastic members 36a, 36b (36c, 36d) between the folded portions. Get.

[2-5] Attaching a skin contact sheet etc. to the absorbent main body:
The front end side, the rear end side, and the left and right side edge sides of the skin contact sheet 24 (liner sheet 24b) are joined and fixed to the surface of the top sheet 18 constituting the absorbent main body 14 (joining portions 68a, 68b, 68c, 68d). At this time, the other end 56 of the ventilated water-repellent sheet 52 is bonded to the surface of the top sheet 18 to be bonded and fixed (bonding portion 66). These fixations can be performed by the same joining method as joining the breathable water-repellent sheet to the skin contact sheet. At this time, it is preferable that the breathable water-repellent sheet has a structure in which the air-repellent sheet is folded once or a plurality of times between the joint portions at both ends, since the standing height of the urine / feces separation wall can be increased. The disposable diaper 1 shown in FIG. 4 is an example in which the breathable water-repellent sheet 52 is Z-folded and folded twice. Note that the front end portion of the joint portion 66 forms an upright line of the urine / feces separation wall 48 when the diaper is worn. The disposable diaper 1 shown in FIG. 6 has the front end side, the rear end side, the left and right side edge sides of the skin contact sheet 24, and the other end 56 of the breathable water repellent sheet 52 attached to the surface (upper surface) of the top sheet 18 with hot melt adhesive. This is an example of attaching, joining and fixing.

  After the front end side, the rear end side, the left and right side edge sides of the skin contact sheet 24 (the liner sheet 24b) and the other end 56 of the air-permeable water-repellent sheet 52 are bonded to the surface of the top sheet 18 as described above, the absorbent main body The three-dimensional gathers 26a and 26b are bonded together so as to sandwich the side edges of the skin contact sheet 24 and the skin contact sheet 24 (liner sheet 24b).

[2-6] Production of exterior member:
First, two nonwoven fabrics to be the exterior member 16 are prepared, and a waist elastic member 42, an abdominal elastic member 44, and a leg elastic member 40 are disposed on and bonded to the upper surface of one of the nonwoven fabrics. And by laminating and fixing another nonwoven fabric on the upper surface, the waist elastic member 42, the belly elastic member 44 and the leg elastic member 40 are interposed between the two nonwoven materials. The exterior member 16 is obtained.

[2-7] Method for producing disposable diaper:
The absorbent main body 14 is disposed and fixed near the crotch part of the exterior member 16. Openings around the legs are opened in the exterior member 16 corresponding to both sides of the absorbent main body 14. Next, the absorbent body 14 is turned inside, and the front body 2 and the back body 6 are folded in two so that the front body 2 and the back body 6 are matched, and the front body 2 and the back body 6 are joined by means such as heat sealing to form the joint 8. By doing, the disposable diaper 1 shown in FIGS. 1-4 can be manufactured.

  The series of steps as described above can be continuously performed by mechanical means. For example, by adopting a method / apparatus such as continuously feeding a long sheet material or stretchable material from a roller, it becomes possible to continuously manufacture disposable diapers, which contributes to an improvement in productivity.

[3] Application target of the present invention:
The application object of the disposable diaper of this invention is not restricted to the said 2 piece type underpants type diaper, For example, it can apply also to a 1 piece type underpants type diaper and a tape type diaper. That is, also in these disposable diapers, the skin contact sheet is disposed above the surface of the top sheet, and the urine / feces separation wall constituted by the ventilated water-repellent sheet is disposed, whereby the effect of the disposable diaper of the present invention is achieved. You can enjoy it.

  “One-piece type” includes a top sheet, a back sheet, and an absorber as in the case of the two-piece type. However, the absorber that performs absorption and holding functions is interposed between the top sheet and the back sheet. This means a diaper of a type that is (built-in) and configured integrally with a top sheet and / or a back sheet that has a mounting function.

  The “tape-type diaper” includes a top sheet, a back sheet, an absorber interposed in at least a part between the two sheets, and a tape fastener for wearing. It shall mean a disposable diaper that can fix the back and back parts to each other. “Tape-type diapers” also have “1-piece type” and “2-piece type” as in pants-type diapers, but the disposable diaper of the present invention is applicable to any type of tape-type diaper.

  The disposable diaper of the present invention can be suitably used as a diaper for infants or for adults such as elderly people and persons with disabilities who need care. The disposable diaper of the present invention can effectively prevent urine and stool from being mixed together, and the occurrence of diaper rash due to the mixture of urine and stool is effectively suppressed. It is particularly suitable as a disposable diaper for infants with weak skin and many skin troubles.

It is a schematic perspective view which shows one Embodiment of the disposable diaper of this invention, and is a schematic perspective view which shows the state seen from the front of a diaper. It is a top view which shows one Embodiment of the disposable diaper of this invention, is a top view which expand | deploys the disposable diaper shown in FIG. 1, and shows the state seen from the absorptive main body side of the diaper. It is a schematic sectional drawing which shows one Embodiment of the disposable diaper of this invention, and is a schematic sectional drawing which shows the cross section which cut | disconnected the disposable diaper shown in FIG. 2 along the X-X 'line. It is the schematic sectional drawing which shows another embodiment of the disposable diaper of this invention, and is the schematic sectional drawing which expanded and partially showed the protruding part and skin contact sheet which were arrange | positioned differently from the protruding part of FIG. . It is a schematic sectional drawing which shows another embodiment of the disposable diaper of this invention, and is the schematic sectional drawing which expanded and showed partially the protruding part and skin contact sheet which differed from the protruding part of FIG. It is a partially expanded plan view which shows the plane which expanded a part of disposable diaper of another embodiment of this invention, and the top sheet part by which the protruding part and skin contact sheet which were arranged differently from the protruding part of FIG. 2 were joined It is a partially expanded plan view which expands and shows this plane. Is a partially enlarged plan view showing a plane a partially enlarged of Operation s discarded diaper, an enlarged plane of the topsheet portion of the raised portion and the skin contact sheet arranged differently and the raised portion of FIG. 2 are joined FIG. Is a partially enlarged plan view showing a plane a partially enlarged of Operation s discarded diaper, an enlarged plane of the topsheet portion of the raised portion and the skin contact sheet arranged differently and the raised portion of FIG. 2 are joined FIG. It is the schematic sectional drawing which shows another embodiment of the disposable diaper of this invention, and is the schematic sectional drawing which expanded and showed the protruding part and skin contact sheet which have a contact surface different from the protruding part of FIG. It is the schematic sectional drawing which shows another embodiment of the disposable diaper of this invention, and is the schematic sectional drawing which expanded and showed the protruding part and skin contact sheet which have a contact surface different from the protruding part of FIG. FIG. 3 is a partially enlarged plan view showing a plane in which a part of the disposable diaper of the present invention is enlarged, and is an enlarged plan view of a top sheet portion to which a breathable water repellent sheet and a skin contact sheet shown in FIG. 2 are joined. FIG. It is the schematic diagram which showed an example of the method of manufacturing a protruding part, and is the schematic diagram which showed before cut | disconnecting a foamed resin sheet. It is the schematic diagram which showed the method of manufacturing a protruding part, and is the schematic diagram which showed after cut | disconnecting a foamed resin sheet.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,100: Disposable diaper, 2: Front body, 2a, 2b: Side edge part, 4: Crotch part, 6: Rear body part, 6a, 6b: Side edge part, 8: Joining part, 10: Opening around waist 12, 12a, 12b: Opening around leg, 14: Absorbent body, 16: Exterior member, 18: Top sheet, 20: Back sheet, 22: Absorber, 24: Skin contact sheet, 24a: Upper sheet, 24b: Liner sheet, 26, 26a, 26b: solid gather, 28: opening, 30: opening stretchable material, 32, 32a, 32b: sheet material, 34: upper edge, 36, 36a, 36b, 36c, 36d: solid gather Stretch material, 38: Standing wire, 40: Stretch material around the leg, 42: Stretch material around the waist, 44: Stretch material around the abdomen, 46: Space, 48: Urine and stool separation wall, 52: Breathable water repellent sheet, 54: One end 5 : Other end, 58: folded portion, 62a, 62b, 62c, 62d: joined portion, 66: joined portion, 68a, 68b, 68c, 68d: joined portion, 77, 77a, 77b, 78, 79, 81, 83, 88, 90: raised portion, 88a: one end, 88b: other end, 90a: one end, 90b: other end, 93: foaming resin sheet, P: point.

Claims (4)

An absorber, a top sheet that is arranged so as to cover the upper surface of the absorber, and at least a part that is made of a liquid-permeable material, and that is arranged so as to cover the lower surface of the absorber, A disposable diaper comprising: a back sheet, and a skin contact sheet formed above the top sheet, wherein a fecal passage opening is formed,
An opening stretchable material is disposed at the periphery of the stool passing opening formed in the skin contact sheet, and the skin contact sheet is kept floating from the top sheet by the tension of the opening stretchable material. As
The top and outer edge of the flights passing opening of the skin contact sheet, along the outer edge of the flights passing opening, Ri ridges formed on ridged the name is placed in annular, it said raised parts are on the top surface of the skin contact sheet, der Ru disposable diaper that bonded by an adhesive. The disposable diaper according to claim 1, wherein the raised portion is compressible. The disposable diaper according to claim 1 or 2 , wherein a contact surface of the raised portion that contacts the skin of the wearer is formed in an arch shape. The disposable diaper according to claim 1 or 2 , wherein a contact surface of the raised portion that comes into contact with the skin of the wearer is formed to be inclined toward the fecal passage opening.

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