JP4537879B2 - Absorbent articles for women - Google Patents

Description

  The present invention relates to a novel female absorbent article.

Absorbent articles such as disposable diapers, sanitary napkins, incontinence articles, and the like absorb body fluids such as urine discharged from the wearer by an absorbent body using a super absorbent polymer (hereinafter also referred to as “SAP”). An article to be absorbed.
The conventional absorbent article for women, when used by a wearer, comes into contact with extremely sensitive parts such as the urethral opening (external urethral opening), clitoris, small labia, and the periphery of the vaginal opening, and thus has a great discomfort.
Moreover, since the conventional absorbent article for women has a structure that covers the urethral opening and the anus, it is difficult to separate and process urine and stool (stool). When urine and feces are mixed during the use of the absorbent article, there is a problem that rash, odor, and the like occur.

  Accordingly, an object of the present invention is to provide a female absorbent article that does not give discomfort to the wearer and is capable of urine / feces separation treatment when worn.

  As a result of intensive studies to achieve the above object, the present inventor has completed a female absorbent article having a novel structure.

That is, the present invention provides the following (1) to (14).
(1) A liquid-impermeable member as a material having an opening for accommodating the wearer's small labia therein and having an opening peripheral portion for positioning the wearer's large labia outside the opening A bag-like absorber housing member using
An absorber that contains a superabsorbent resin and that can absorb bodily fluids, disposed inside the absorber housing member, at least one layer;
A protrusion-like front contact portion for contacting the wearer's clitoris front portion, formed at the front portion of the absorber housing member;
An absorbent article for women for absorbing urine, comprising a protruding rear contact part formed on the rear part of the absorbent body containing member for contacting the perineum part of the wearer.
(2) A bag-shaped absorbent body accommodating member that has an opening for accommodating the wearer's small labia therein and has an opening periphery for positioning the wearer's large labia outside the opening. When,
An absorber that contains a superabsorbent resin and that can absorb bodily fluids, disposed inside the absorber housing member, at least one layer;
A protrusion-like front contact portion for contacting the wearer's clitoris front portion, formed at the front portion of the absorber housing member;
Protruding rear contact part for contacting the wearer's perineal part, formed at the rear part of the absorber housing member,
Comprising a <br/> an external leak preventer configured by a liquid-impermeable material for forming a space for accommodating the labia majora of the wearer in the outer side of the opening periphery,
The use of a liquid-impermeable member or the liquid-permeable member wherein the portion having the external leak preventer outside the absorber housing member as the material, said portion without external leak preventer outside of the absorber housing member In some cases, an absorbent article for women for absorbing urine, the part of which uses a liquid-impermeable member as a material .
(3) The external leak preventer is combined with the absorber housing member,
The lower side than the coupling position with the external leak preventer of the absorber housing member is made of a liquid-impermeable material,
The female absorbent body according to (2) , wherein the internal space of the absorbent body housing member and the space for housing the large labia of the wearer of the external leak preventer are formed of a liquid-impermeable material as a whole. Goods.
(4) The absorbent article for women according to (3), wherein an upper side of a position where the absorbent body accommodating member is coupled to the external leak preventer is made of a liquid permeable material.
(5) Further, the front end of the left and right external leak preventers is closed to form a front end space and / or the rear end of the left and right external leak preventers is closed to close the rear end space. The absorbent article for women according to any one of (2) to (4), comprising a rear leak preventer to be formed.
(6) The absorbent article for women according to any one of (1) to (5), wherein the periphery of the opening is made of a cushioning material.
(7) The absorbent article for women according to any one of (1) to (6), wherein a cushioning member is further disposed below the periphery of the opening.

(8) The absorbent article for women according to (7), wherein the cushioning member is a foam sheet having a thickness of 1 to 20 mm and a density of 20 to 40 kg / m ³ .
(9) The female absorbent article according to any one of (1) to (8), wherein an edge portion of the external leak preventer is formed of a cushioning member.
(10) The absorbent article for women according to any one of (1) to (9), wherein the front contact portion and / or the rear contact portion is partly or entirely formed of a foam.
(11) The absorbent article for women according to (10), wherein the foam is a soft polyurethane sheet having a thickness of 1 to 5 mm.
(12) The absorbent article for women according to the above (11), wherein two or more layers of the flexible polyurethane sheet are laminated.
(13) The absorbent article for women according to any one of (10) to (12), wherein the foam is coated with a nonwoven fabric.
(14) The absorbent article for women according to (13), wherein the nonwoven fabric is a surface-hydrophilized nonwoven fabric.

  When the absorbent article for women of the present invention is worn, the wearer does not feel uncomfortable and urine / feces separation processing is possible.

  Hereinafter, a female absorbent article of the present invention (hereinafter, also simply referred to as “absorbent article”) will be described in detail based on preferred embodiments shown in the accompanying drawings. In the present specification, when the absorbent article for women of the present invention is actually worn, the side closer to the wearer's skin is referred to as “upper” and the far side is referred to as “lower”. Further, when the absorbent article for women of the present invention is actually worn, the side corresponding to the front side of the wearer's body is referred to as “front”, and the side corresponding to the rear side is referred to as “rear”. Moreover, in order to make an understanding easy in each figure, the member which is actually contacting may be shown spaced apart.

FIG. 1 is a schematic diagram showing an example of a female absorbent article according to the present invention. 1A is a perspective view, FIG. 1B is a plan view, and FIG. 1C is a lateral end view along the IC-IC line in FIG. 1B. In FIG. 1 (A) and FIG. 1 (B), the absorber is omitted.
In addition, in each top view in attached drawing, it has illustrated so that the front side, such as a female absorbent article, may be located on the upper side of the figure.

  The absorbent article 100 for women of the present invention basically forms an opening 12 for accommodating the wearer's small labia and places the wearer's large labia on the outside of the opening 12. A bag-like absorber housing member 10 having an opening peripheral portion 14; and an absorber 20 that is disposed in the absorber housing member 10 and includes at least one layer and contains a superabsorbent resin and can absorb body fluid; Protruding front contact portion 30 for contacting the wearer's clitoris front portion formed at the front portion of the absorber housing member 10 and the wearer's association formed at the rear portion of the absorber housing member 10 And a projecting rear contact portion 40 for contacting the shadow.

As a material of the absorber housing member 10, a material generally used as a back sheet can be used. Specifically, for example, a resin film such as PE, PP, PET, and EVA; and a body fluid impermeable sheet such as a foamed sheet of the resin can be used. As the body fluid impermeable sheet, a material having air permeability such as an air permeable film is also preferably used.
Moreover, when using the film of the said resin, in order to improve a touch and an external appearance, it can also be used as a multilayer sheet | seat of a film and a nonwoven fabric. In this case, as the nonwoven fabric, SB, SMS, thermal bond nonwoven fabric and the like having a relatively low basis weight are preferably used.
Also, a multilayer sheet of the resin film and a sheet-like absorber described later can be used.
A highly water-resistant nonwoven fabric can also be used. In this case, you may use independently and can also be used as a multilayer sheet | seat of a film and a highly water-resistant nonwoven fabric.

  The absorbent article for women of the present invention prevents the discharged urine from leaking to the outside by using the liquid-impermeable member as described above as the material of the absorber housing member 10. In addition, when the absorbent article for women of the present invention further includes an external leak preventer which will be described later, a liquid permeable member is used as a material for the absorber containing member 10 as long as leakage of urine to the outside is prevented. May be used. For example, a portion (for example, a side portion) having an external leak preventer on the outside may be used as the liquid permeable member.

  The absorber housing member 10 may be composed of a plurality of members. For example, the bottom portion can be made of a liquid-impermeable material, and the portions other than the bottom portion can be made of foam such as PP, PE, PU, or soft synthetic rubber.

The absorber housing member 10 has a bag shape having an opening peripheral portion 14 that forms the opening 12. At the time of wearing, the wearer's labia minora is accommodated in the opening 12. As a result, when the wearer discharges urine, the urine is discharged into the absorber housing member 10.
When worn, the wearer's large labia is positioned outside the opening 12. That is, the small labia is located inside the opening periphery 14 and the large labia is located from the top to the outside of the opening periphery 14. When the large labia is positioned outside the opening 12 in this way, the size of the opening is reduced as compared with the case where the large labia is positioned inside the opening, and between the wearer's body and the periphery of the opening. The gap becomes smaller. Therefore, it is difficult to leak.

The opening peripheral part 14 may be integrated with the absorber housing member 10 or may be constituted by another member.
In one preferred embodiment, the opening peripheral portion 14 is made of a cushioning material. Preferable examples of the cushioning material include foams such as PP, PE, and PU; soft synthetic rubber.
The shape of the opening periphery 14 is not particularly limited. Details will be described later.

An absorbent body 20 is disposed inside the bag-shaped absorbent body accommodation member 10.
The absorbent body 20 used in the present invention is not particularly limited as long as it contains a highly water-absorbent resin and can absorb body fluids. For example, powdered absorbent bodies such as powdered wood pulp and unprocessed SAP However, a sheet-like absorbent body is preferable in consideration of form stability, possibility of dropping off, and the like. Especially, the sheet-like absorber formed by coating the said highly water-absorbent resin on a nonwoven fabric is preferable.

Among the sheet-like absorbent bodies, one preferred embodiment is a superabsorbent sheet containing SAP of 50% by mass or more, preferably 60 to 95% by mass.
The highly water-absorbent sheet is an ultrathin sheet-like absorbent body mainly composed of SAP. The superabsorbent sheet has a very small thickness because the SAP content is extremely high. The thickness of the superabsorbent sheet is preferably 1.5 mm or less, and more preferably 1 mm or less.
As long as the superabsorbent sheet is an ultra-thin sheet-like absorbent body mainly composed of SAP, the configuration and the production method are not particularly limited.
For example, a super absorbent sheet obtained by the Air Laid method can be mentioned. The Air Laid method is a method in which a pulverized wood pulp and SAP are mixed, a binder is added, and the resultant is formed into a sheet shape to obtain a superabsorbent sheet. As a highly water-absorbent sheet obtained by this method, for example, NOVATHIN (registered trademark) manufactured by Rayonier in the United States and B-SAP manufactured by Oji Kinocross are known.
Moreover, the superabsorbent sheet obtained by the method of coating SAP dispersion | distribution slurry on body fluid permeable sheets, such as a nonwoven fabric, is also mentioned. Here, it is preferable that the SAP dispersion slurry is obtained by dispersing SAP and microfibrillated cellulose (MFC) in a mixed solvent of water and ethanol. As a highly water-absorbent sheet obtained by this method, MegaThin (registered trademark) manufactured by Japan Absorbent Technology Laboratory is known, for example.
In addition, for example, a superabsorbent sheet obtained by a method in which a large amount of SAP is supported on a raised nonwoven fabric and fixed with a hot melt binder, emulsion binder, aqueous fiber, etc., and fibrous SAP is mixed with PET (polyethylene terephthalate) fiber And a superabsorbent sheet obtained by a method of forming a web, and a SAP sheet in which the top and bottom of the SAP layer are sandwiched between tissues.

At least one layer of the absorber is arranged. That is, the absorber may be a single layer or two or more layers (multiple layers).
The absorber can also be arranged in a folded state.

A projecting front contact portion 30 is formed at the front portion of the absorber housing member 10, and a projecting rear contact portion 40 is formed at the rear portion of the absorber housing member 10. At the time of wearing, the front contact part 30 contacts a wearer's clitoris front part, and the back contact part 40 contacts a wearer's perineum part. In FIG. 1, the width of the front contact portion 30 is larger than the width of the rear contact portion 40, but the present invention is not limited to this, and the width of the front contact portion is smaller than the width of the rear contact portion. Or both may be the same.
In women's local areas, the clitoral front and perineum are generally concave and the labia in between are convex, so when trying to make the absorbent article in close contact, the front and rear ends and the wearer's If a gap is formed between the front part of the clitoris and the perineum part or if the gap is closed so as to prevent it, the absorbent article is folded in two at the middle part in the front-rear direction, and the absorbent article It will be in one of the states that a gap will be formed on the left and right.
On the other hand, in the absorbent article 100 for women of the present invention, the protruding front contact portion 30 contacts the wearer's clitoris front portion, and the protruding rear contact portion 40 contacts the wearer's perineum portion. Therefore, it fits into the wearer's genitals and the above-described front and rear gaps and left and right gaps do not occur. Therefore, the absorbent article for women of the present invention hardly leaks urine.

The function of the absorbent article for women of the present invention will be described more specifically with reference to the drawings.
FIG. 2 is an explanatory view showing a state in which the wearer wears the absorbent article 100 for women of the present invention. FIG. 2 is a longitudinal end view along the center plane of the wearer.
As shown in FIG. 2, when the absorbent article 100 for women of the present invention is worn, the front contact portion 30 contacts the front portion of the clitoris C of the wearer W, and the rear contact portion 40 is the wearer. By contacting the perineum P of W, the clitoris C, small labia Lm, urethral orifice m, etc. in the meantime can be accommodated in the opening 12 and fits the wearer's W genitals as a whole. ing. Therefore, sensitive parts such as the clitoris C, the small labia Lm, the urethral opening m, and the peripheral part of the vagina are not in contact with the absorbent article itself, or the pressure is weak even if it comes into contact. Absent.
Moreover, since the absorbent article for women of the present invention can be in a form that does not cover the anus, urine / feces separation processing is possible.

In addition, when the wearer W discharges urine in this state, the urine discharged from the urethral opening m is absorbed by the absorbent body 20 housed in the absorbent body housing member 10 on the lower side. At that time, the front contact portion 30 and the rear contact portion 40 prevent urine transmitted through the wearer's genitals from leaking from the front or rear of the female absorbent article 100 to the outside. Moreover, even if urine stays inside the absorber housing member 10, since the opening 12 is in close contact with the genitals of the wearer W, there is little risk of urine leaking out from the opening 12.
As described above, the front contact portion 30 contacts the dent of the front portion of the clitoris C and does not create a gap with the wearer's body, so that the urine transmitted through the wearer's body The absorbent article 100 has a function of not leaking out.

Furthermore, it is preferable that the front contact portion 30 has a certain thickness and cushioning properties so that it can follow the opening and closing of the large labia that occurs when the wearer moves his / her body. Thereby, the gap | interval which leaks urine does not arise by the operation | movement of opening / closing of a large labia.
Furthermore, it is one of the preferable embodiments that the front contact portion 30 has a guide function for guiding the urine transmitted through the wearer's body to the opening or the absorbent body before leaking out.

Although the front contact part 30 is formed in the front part of the absorber accommodating member 10, the magnitude | size, a shape, arrangement | positioning, etc. can be determined in consideration of various functions as mentioned above.
The front contact portion 30 is positioned and sized so as not to block the urethral opening or to contact the urethral opening or the clitoris. Specifically, the position is a position in contact with the front (abdominal side) portion (front of the clitoris) of the clitoris when worn, and preferably the position and size that can be sandwiched between the large labia.

The height of the front contact portion is not particularly limited as long as it does not easily leak.
Specifically, it is determined in consideration of the material, shape, deformability, etc. Generally, from the reference plane including the position where the tip of the large labia (the lowermost part) is in contact with the absorber housing member, 10 A height of ˜25 mm is preferred. This is based on the fact that the distance from the reference plane to the front of the clitoris (the depth of the recess in the front of the clitoris) is about 15 mm.
When it is 10 mm or more, leakage over the front contact portion is less likely to occur. Moreover, when it is 25 mm or less, a gap between the large labia and the absorber housing member is less likely to occur, and leakage is less likely to occur.

The length of the front contact portion in the front-rear direction is preferably in a range that does not protrude from the underwear. In this respect, it is preferably 100 mm or less. Moreover, when the absorber article for women of this invention has the external leak preventer mentioned later, it is preferable that it exists in the back side from the front-end part of an external leak preventer.
Moreover, it is preferable that it is 5 mm or more at the point which contacts a wearer's body and stabilizes, and it is more preferable that it is 10 mm or more.
In the case where the underwear has a connector band for detachably attaching the female absorbent article of the present invention, the front end of the front contact portion of the female absorbent article of the present invention and the belt-shaped connector band are provided. Can be combined and integrated. At this time, for example, by using a hook-and-loop fastener or an adhesive, it can be detachably coupled.

The width in the left-right direction of the front contact portion is preferably within a range that is easily caught between the large labia.
The width of the upper surface of the front contact portion is preferably 15 mm or less because the distance between the deep parts of the large labia does not change greatly due to the movement of the wearer's body. The width of the lower surface of the front contact portion is preferably 30 mm or less because the distance between the shallow parts of the large labia is narrow when the wearer closes the legs, but the distance between the large labia can be widened by physical exercise. . Further, if the width of the front contact portion is too thick, insertion is difficult and a gap is likely to be formed on the upper side of the front contact portion, and there is a risk of liquid leakage.
On the other hand, in terms of preventing liquid leakage from the left and right side surfaces of the front contact portion, the width of the upper surface and the width of the lower surface of the front contact portion are preferably 3 mm or more.

The shape of a front contact part is not specifically limited, For example, it can be set as each shape shown by FIG. 3 (A)-FIG.3 (L).
FIG. 3 is a schematic perspective view showing various types of front contact portions. In the figure, the left side is the wearer's front side, and the upper side is the wearer's body side.
In each of the shapes shown in FIGS. 3A to 3G, a portion that contacts the front of the clitoris has a certain height in the front-rear direction. In this case, even if the position of the front contact portion with respect to the wearer is slightly shifted back and forth depending on the movement of the wearer's body, the wearing state, etc., it does not come off or the sealing performance does not change greatly.
In addition, in each shape shown in FIGS. 3H to 3L, the height in the front-rear direction of the portion in contact with the clitoris front portion is changed. In this case, the urine stopped at the front contact portion moves smoothly forward or backward.

The structure of the front contact portion is not particularly limited.
For example, (1) a structure in which a cushioning material (cushion material) is used alone, (2) a structure in which a non-cushion material (core material) is covered with a sheet-like cushion material (two-layer structure), ( 3) The structure which coat | covered the cushion material with the nonwoven fabric, (4) The structure which coat | covered the core material with the nonwoven fabric is mentioned.
Examples of the cushion material include foams such as PP, PE, and PU; soft synthetic rubber. In the case of a foam, a foam sheet having a thickness of 1 to 5 mm and a density of 20 to 40 kg / m ³ is preferable in terms of excellent flexibility and cushioning properties. In particular, a flexible polyurethane sheet is preferable, and a flexible polyurethane sheet having a thickness of 1 to 5 mm is more preferable.
In a preferred embodiment, the foam sheet such as a flexible polyurethane sheet is laminated in two or more layers. Thereby, the front contact part of moderate width | variety can be formed. Moreover, when using the method of forming simultaneously with the opening periphery part mentioned later, the material which becomes unnecessary originally can be diverted to formation of a front contact part.
Examples of the core material include plastic and hard rubber tube.
As the nonwoven fabric, both a hydrophilic nonwoven fabric and a hydrophobic nonwoven fabric can be used. The hydrophobic nonwoven fabric has a function of dividing the movement of urine that has been transmitted through the genitals at the front contact portion. Moreover, a hydrophilic nonwoven fabric is used when it has the function to permeate | transmit urine to the inside and to make it move to an absorber. Among these, a hydrophilic nonwoven fabric is preferable.
The hydrophilic nonwoven fabric is not particularly limited, but in the case of a cellulose-based hydrophilic nonwoven fabric, once it comes into contact with urine, it swells and the space inside the nonwoven fabric through which urine passes becomes narrow, and the movement of urine is smooth. Since it may not be performed, a surface hydrophilized non-woven fabric obtained by subjecting a non-woven fabric made of a hydrophobic material such as a PP non-woven fabric or an apertured PE film to surface hydrophilization is preferable. As the PP nonwoven fabric, the opening PE film and the like, for example, those used as a back material such as a napkin can be used.

  It is preferable that a part or all of the front contact portion is formed of a foam. In that case, it is one of the preferred embodiments that the foam is covered with a nonwoven fabric.

FIG. 4 is a schematic lateral end view showing structures of various front contact portions.
In the front contact portion 30 a shown in FIG. 4A, the entire core material 32 is covered with a sheet-like cushion material 34. The front contact portion 30b shown in FIG. 4 (B) is basically the same as that in FIG. 4 (A), but the sheet-like cushion material 34 extends further below the lower surface of the core material 32 '. Yes. The front contact portion 30c shown in FIG. 4 (C) and the front contact portion 30d shown in FIG. 4 (D) are respectively the relatively thick sheet-like cushion members 34 in FIG. 4 (A) and FIG. 4 (B). Instead, a relatively thin nonwoven fabric 36 is used. By using the non-woven fabric 36, the cushioning property is reduced, but the wearer's feeling of wear is improved.
4A and 4B, a non-woven fabric as shown in FIGS. 4C and 4D can be used by covering the cushion material 34.

In addition, the front contact portion may have a structure that exhibits a urine movement function.
FIG. 5 is a schematic diagram showing structures of various front contact portions using a liquid permeable member. 5A to 5D are lateral end views, and FIG. 5E is a perspective view for explaining the function of the front contact portion shown in FIG. 5A.
The front contact portion 30e shown in FIG. 5A is basically the same as that shown in FIG. 4A, but uses a liquid-permeable member 38 instead of the core material. Here, as shown in FIG. 5A, the front contact portion 30e is preferably provided in contact with a liquid guide sheet 80 described later. Thereby, movement to the absorber of urine comes to be performed smoothly.
The front contact portion 30f shown in FIG. 5B is basically the same as that shown in FIG. 5A, but the cushion material 34 is further covered with a nonwoven fabric 36 '.
The front contact portion 30g shown in FIG. 5C is basically the same as FIG. 5A, but uses a liquid permeable member 38 ′ having a notch on the lower side. Thereby, movement to the absorber of urine comes to be performed more smoothly.
The front contact portion 31 shown in FIG. 5 (D) is basically the same as that in FIG. 5 (A), except that a liquid-permeable member 38 ″ is disposed below the inside of the cushion material 34, and above that is a gap. Thereby, the front contact part 31 is excellent in the deformability of the upper part.
As indicated by an arrow in FIG. 5E, urine that has entered from the rear portion of the front contact portion 30e passes through the inside and is guided to the liquid guide sheet 80 through the lower surface. The urine then moves to the opening or absorber and is absorbed.
Examples of the liquid-permeable member include a member through which urine such as a filter and a tube can permeate; a member formed of a hydrophilic material such as a cellulose-based nonwoven fabric and tissue.

As described above, the back contact portion 40 contacts the dent of the perineum P and does not create a gap with the wearer's body, so that the urine transmitted through the wearer's body can be absorbed by the female body. The function of not leaking out of the article 100 is achieved.
Moreover, it is preferable that the back contact part 40 has a certain amount of thickness and cushioning properties so that it can follow the opening and closing of the left and right buttocks that occur when the wearer moves his / her body. Thereby, the gap | interval which leaks urine does not arise by the operation | movement of opening and closing of a right and left buttocks.
Furthermore, it is one of the preferable embodiments that the rear contact portion 40 has a guide function for guiding the urine transmitted through the wearer's body to the opening or the absorbent body before leaking out.

Although the back contact part 40 is formed in the rear part of the absorber accommodating member 10, the magnitude | size, a shape, arrangement | positioning, etc. can be determined in consideration of various functions as mentioned above.
The rear contact portion 40 is positioned and sized so as not to block the anus or contact the anus. Specifically, it is a position that comes into contact with the perineum when worn, and preferably a position and size that can be sandwiched between the left and right hips.

The height of the rear contact portion is not particularly limited as long as it does not easily leak.
Specifically, it is determined in consideration of the material, shape, deformability, etc. In general, the height is preferably 15 to 35 mm from the reference plane described above. This is based on the fact that the distance from the reference surface to the perineum (the depth of the recess in the perineum) is about 20 mm.
When it is 15 mm or more, leakage over the rear contact portion is less likely to occur. Moreover, when it is 35 mm or less, a gap between the left and right collars and the absorber housing member is less likely to occur, and leakage is less likely to occur.

The length of the rear contact portion in the front-rear direction is preferably in a range that does not contact the anus. In this respect, it is preferably 50 mm or less. Moreover, when the absorbent article for women of this invention has the external leak preventer mentioned later, it is preferable that it exists in the front side from the rear-end part of an external leak preventer.
Moreover, it is preferable that it is 10 mm or more at the point which contacts a wearer's body and stabilizes, and it is more preferable that it is 15 mm or more.
Further, in the case where the underwear has a connector band for detachably attaching the female absorbent article of the present invention, the rear end of the rear contact portion of the female absorbent article of the present invention, a belt-shaped connector band, Can be combined and integrated. At this time, for example, by using a hook-and-loop fastener or an adhesive, it can be detachably coupled.
The connector band is preferably a hip wrap band branched so as to avoid the anus. In this case, each of the branched ends of the hip wrap band can be joined to the rear end of the rear contact portion of the female absorbent article of the present invention.

The width in the left-right direction of the rear contact portion is preferably in a range that is easily sandwiched between the left and right collars.
The width of the upper surface of the rear contact portion is preferably 15 mm or less because the distance between the deep portions of the left and right buttocks does not change greatly due to the movement of the wearer's body. The width of the lower surface of the front contact part is 30 mm or less because the distance between the shallow parts of the left and right buttocks is narrow when the wearer closes the legs, but the distance between the left and right buttocks can be widened by physical exercise. Is preferred. Further, if the width of the rear contact portion is too thick, insertion is difficult and a gap is likely to be formed on the upper side of the rear contact portion, which may cause liquid leakage. However, if it is within the above range, there is less risk of liquid leakage.
On the other hand, it is preferable that the width of the upper surface and the lower surface of the rear contact portion are both 3 mm or more from the viewpoint of preventing liquid leakage from the left and right side surfaces of the rear contact portion.

  The shape of the rear contact portion is not particularly limited, and can be the same as, for example, each shape of the front contact portion shown in FIGS. 3 (A) to 3 (L).

  The structure of the rear contact portion is not particularly limited. For example, the structure is the same as each structure of the front contact portion shown in FIGS. 4 (A) to 4 (D) and FIGS. 5 (A) to 5 (D). be able to.

The positional relationship between the front contact portion and the rear contact portion and the opening is not particularly limited, and both the front contact portion and the rear contact portion may be outside or inside the opening.
FIG. 6 is a schematic plan view for explaining the positional relationship between the front contact portion and the rear contact portion and the opening. FIG. 6 shows only the front contact portion, the rear contact portion, and the opening.
In FIG. 6A, the front contact portion 30 and the rear contact portion 40 are both provided adjacent to the opening 12a outside the opening 12a. In this case, both the front contact portion 30 and the rear contact portion 40 are provided on the upper surface of the absorber housing member.
In FIG. 6B, the front contact portion 30 and the rear contact portion 40 are both provided inside the opening 12b. In this case, the front contact portion 30 and the rear contact portion 40 are both provided on the absorber, the liquid guide sheet described later, and the upper surface of the bottom portion of the absorber housing member.
In FIG. 6C, the front contact portion 30 and the rear contact portion 40 are both provided outside the opening 12a and separated from the opening 12c. In this case, both the front contact portion 30 and the rear contact portion 40 are provided on the upper surface of the absorber housing member.
6A to 6C, the front contact portion 30 and the rear contact portion 40 have the same positional relationship with the opening, but may have different positional relationships. For example, there is a positional relationship in which the front contact portion is provided adjacent to the outside of the opening and the rear contact portion is provided inside the opening.

In the female absorbent article 100 of the present invention shown in FIGS. 1 and 2, the opening 12 accommodates the urethral opening m and the surrounding small labia Lm when worn.
The shape of the opening is preferably such that the entire area around the urethral opening is open in that it accepts a large amount of urine discharged at a time without causing leakage.
FIG. 7 is a plan view showing shapes of various openings. The opening 13a shown in FIG. 7A is a rectangle that is long in the front-rear direction. The opening 13b shown in FIG. 7B has a shape in which the front and rear sides of a rectangle that is long in the front-rear direction are replaced with a semicircle. The opening 13c shown in FIG. 7C is an octagon that is long in the front-rear direction. The opening 13d shown in FIG. 7D is a rhombus having a long diagonal line in the front-rear direction.
The shape shown in FIG. 7C or FIG. 7D, or a shape obtained by slightly modifying these is preferable in that the width of the area around the urethral opening is locally wide.

Since the position of the urethral orifice varies among individuals and also varies depending on the bending and stretching movements, the size of the opening preferably has a margin of 10 mm before and after the urethral orifice. It is more preferable that the size is close to the vicinity. Therefore, the length of the opening in the front-rear direction is preferably 20 mm or more, and more preferably 30 mm or more.
Moreover, since it will cause a leak if it is too long back and forth, the length of the opening in the front-rear direction is preferably 100 mm or less, and more preferably 90 mm or less.

The width of the opening is narrower than before wearing. This is because the female absorbent article of the present invention receives pressure from the left and right sides while being sandwiched between the large labia and thighs when worn.
Therefore, in consideration of the fact that it is preferably 3 mm or more so that urine can smoothly move to the absorber when worn, it is preferably 15 mm or more. In consideration of the fact that it is preferably 15 mm or less so that the large labia is positioned outside the opening when worn, it is preferably 40 mm or less.

In the female absorbent article 100 of the present invention shown in FIG. 1, the opening 12 described above is formed by the opening peripheral portion 14.
The shape of the periphery of the opening is not particularly limited, and various shapes can be used in order to increase the adhesion to the large labia and to facilitate the movement of urine.
FIG. 8 is a schematic lateral end view showing the shapes of various peripheral portions of the opening. The opening peripheral portion 14a shown in FIG. 8A is horizontal. The inner periphery of the opening peripheral portion 14b shown in FIG. 8B is lowered. The opening peripheral portion 14c shown in FIG. 8C rises in the same manner as the opening peripheral portion 14 shown in FIG. 1C. This is preferable because leakage of urine to the outside of the absorber housing member is less likely to occur. An opening peripheral portion 14d shown in FIG. 8D is obtained by increasing the thickness of the embodiment shown in FIG. An opening peripheral portion 14e shown in FIG. 8 (E) is such that the interval between the inner end portions of the embodiment of FIG. 8 (D) is wide on the upper side and narrower on the lower side. In the opening peripheral portion 14f shown in FIG. 8F, the interval between the inner end portions in the embodiment of FIG. 8D is such that the upper side is narrow and the lower side is wide.

In the absorbent article 100 for women of the present invention shown in FIG. 1, a cushioning member 16 is disposed below the opening peripheral portion 14.
As described above, in the present invention, it is one of the preferred embodiments that the opening peripheral portion 14 is made of a cushioning material. For example, a cushioning material is used for the opening peripheral portion due to cost requirements. In the case where it is not present, it is preferable to dispose a cushioning member on the lower side of the periphery of the opening. Thereby, the shape of the opening is stabilized. Further, with respect to the contact state with the large labia at the periphery of the opening, fit and cushioning properties that can cope with the unevenness of the body surface can be obtained. Further, the cushioning member preferably has a certain thickness as will be described later, thereby preventing the wearer's labia, urethral orifice, etc. from directly contacting the female absorbent article, Even in the case of contact, it has a function of reducing the pressure.
Examples of the cushion member include a foam sheet, a foam having a high foaming degree, and a net filter-like material.

The cushion member preferably has a thickness of 1 to 20 mm. When it is 1 mm or more, the effect of cushioning properties is increased, and when it is 20 mm or less, it does not become bulky.
As shown in FIG. 1, the cushioning member is preferably provided in a band shape on the left and right sides of the opening on the lower side of the opening periphery. The width in the left-right direction of the cushioning member is preferably 5 to 40 mm, and more preferably 10 to 30 mm, in order to obtain a cushioning effect. The length of the cushion member in the front-rear direction is preferably about the same as the length of the opening in the front-rear direction. Specifically, it is preferably 20 to 120 mm, and more preferably 30 to 90 mm.
The cushion member preferably has a density of 20 to 40 kg / m ³ .
Among these, a foam sheet having a thickness of 1 to 20 mm and a density of 20 to 40 kg / m ³ is preferable.

The position of the cushioning member is not particularly limited as long as it is below the periphery of the opening.
FIG. 9 is a schematic lateral end view showing positions of various cushioning members. The cushioning member 16a shown in FIG. 9 (A) is located slightly outside the opening end of the opening peripheral portion 14 like the cushioning member 16 shown in FIG. The cushioning member 16b shown in FIG. 9B is located slightly inside the opening end of the opening peripheral portion 14. The cushioning member 16c shown in FIG. 9C is positioned so that the end portion is located directly below the opening end of the opening peripheral portion.

In the absorbent article for women of the present invention, the front contact portion and the rear contact portion described above may be formed after being configured separately from the opening peripheral portion described above, or the front contact portion and the rear contact portion. The opening periphery may be formed at the same time.
The configuration of the periphery of the opening is not particularly limited. FIG. 10 is a schematic plan view showing configurations of various openings and peripheral portions.
The opening peripheral portion 14g shown in FIG. 10A is composed of one member on the front, rear, left and right sides. The opening peripheral part 14h shown in FIG. 10B is composed of two left and right members. The opening peripheral portion 14i shown in FIG. 10C is composed of two front and rear members. The opening peripheral portion 14j shown in FIG. 10 (D) is composed of two members constituting the left and right sides and two members constituting the front and rear sides between them. The opening peripheral portion 14k shown in FIG. 10 (E) is composed of two members constituting the front and rear sides and two members constituting the left and right sides between them. In the opening peripheral portion 14l shown in FIG. 10 (F), the members constituting the front and rear sides in the opening peripheral portion 14k shown in FIG. 10 (E) are replaced with three members, left, center and right, respectively. Is.

  Since the thickness of the front contact portion and the rear contact portion is larger than the thickness of the opening periphery, in the formation of the opening periphery, for example, when a polyurethane sheet having a thickness of 4 mm is used as the material of the opening periphery, The part to be removed to make an opening is folded forward and backward to make a double, and further folded to form a quadruple, thereby forming a front contact part and a rear contact part with a lateral width of about 16 mm. Can do.

Hereinafter, various methods for simultaneously forming the front contact portion, the rear contact portion, and the opening peripheral portion will be described.
FIG. 11 is an explanatory diagram showing a first example of a method for forming the front contact portion, the rear contact portion, and the opening peripheral portion at the same time.
The periphery of the opening forming the opening shown in the plan view of FIG. 11A is folded so that the central dotted line portion is raised, and the state shown in the plan view and front view of FIG. Next, as shown in the front view of FIG. 11C, the inner surface of the raised portion is adhered to the left and right to form the front contact portion and the rear contact portion.

FIG. 12 is an explanatory diagram showing a second example of a method for simultaneously forming the front contact portion, the rear contact portion, and the opening peripheral portion.
The periphery of the opening shown in the plan view of FIG. 12A is folded so that the central dotted line portion is raised, and the core material CM shown in the plan view and the front view (the core material 32 shown in FIG. 4A). Is inserted into the space inside the raised portion, and the state shown in the plan view and front view of FIG. Next, as shown in the front view of FIG. 12C, the inner surface of the raised portion and the core material CM are bonded to form the front contact portion and the rear contact portion.

FIG. 13 is an explanatory diagram showing a third example of a method for simultaneously forming the front contact portion, the rear contact portion, and the opening peripheral portion.
The member for the opening peripheral portion shown in the plan view of FIG. 13A is cut along the solid line, and then bent downward along the alternate long and short dash line, and the state shown in the plan view of FIG. To do. Next, it is folded so that the central dotted line portion is raised, and the state shown in the plan view and front view of FIG. Then, each part is adhere | attached suitably and a front contact part and a back contact part are formed.
Thus, since it is not necessary to prepare a separate material by using the bent portion for forming the front contact portion and the rear contact portion, the cost can be reduced.

FIG. 14 is an explanatory diagram showing fourth to sixth examples of methods for simultaneously forming the front contact portion, the rear contact portion, and the opening peripheral portion.
The method shown in FIGS. 14A to 14C is obtained by changing the notch position of the method shown in FIG. As shown in FIG. 14B, the end portion of the portion bent forward is coincident with the front end portion of the opening peripheral body, but the end portion of the portion bent rearward is the opening peripheral portion. The rear end of the main unit has not been reached. Therefore, as shown in FIG. 14C, when bent along the dotted line, the width of the rear protruding portion changes in the front-rear direction. Thereby, such a back contact part can be formed. In this case, since the width closer to the anus becomes smaller, it is possible to suppress the feeling of foreign matter when worn.

  The method shown in FIGS. 14D to 14F is also obtained by changing the cutting position of the method shown in FIG. As shown in FIG. 14E, the end portion of the portion bent forward does not reach the front end portion of the opening peripheral body, and the end portion of the portion bent rearward has the opening peripheral portion main body. Beyond the rear edge. Therefore, as shown in FIG. 14 (F), when bent along the dotted line, the thickness of the front raised portion changes in the front-rear direction. Thereby, such a front contact part can be formed. Further, a part of the rear contact portion protrudes. This protruding portion enables a design that can respond to subtle unevenness of the wearer's body, and can prevent the occurrence of a gap.

  The method shown in FIGS. 14G to 14I also changes the incision position of the method shown in FIG. 13, and the method shown in FIGS. 14D to 14F. It is the thing which interchanged front and back.

FIG. 15 is an explanatory diagram showing seventh to ninth examples of methods for simultaneously forming the front contact portion, the rear contact portion, and the opening peripheral portion. In FIGS. 15A and 15B, the hatched portion is a portion that is surrounded by a cut and has no members. Moreover, in FIG.15 (C), the center part back is a notch.
The method shown in FIGS. 15A to 15C is a combination of the method shown in FIG. 11 and the method shown in FIG. That is, the front contact portion is formed in the same manner as in FIG. 13, and the rear contact portion is formed in the same manner as in FIG.

  In the method shown in FIG. 15D to FIG. 15F, the opening peripheral member shown in the plan view of FIG. 15D is cut along the solid line, and then along the alternate long and short dash line. Bend down to the state shown in the plan view of FIG. Next, it is folded so that the central dotted line portion is raised, and the state shown in the plan view and the rear end view of FIG. Then, each part is adhere | attached suitably and a front contact part and a back contact part are formed. In this method, since the portion bent backward is lacking the central portion, the shape of the rear contact portion is different from the case of the method shown in FIG.

  In the method shown in FIGS. 15 (G) to 15 (I), the member for the opening periphery shown in the plan view of FIG. 15 (G) is cut along the solid line, and then along the one-dot chain line. Bend the bottom to the state shown in the plan view of FIG. Next, it is folded so that the center dotted line portion is raised, and the state shown in the plan view and front view of FIG. Then, each part is adhere | attached suitably and a front contact part and a back contact part are formed. In this method, since the rear center portion is lacking, the height of the rear contact portion is lower than the height of the front contact portion.

FIG. 16 is an explanatory diagram showing a tenth example of a method for forming the front contact portion, the rear contact portion, and the opening peripheral portion at the same time.
As shown in the plan view and the front view of FIG. 16 (A), a surface hydrophilized nonwoven fabric (for example, a surface-hydrophilic treated PP span) on a cushioning material (for example, a soft urethane foam having a thickness of 3 mm) 16B is a plan view of FIG. 16B after a member for an opening peripheral portion formed by bonding a bonded nonwoven fabric, a diagonally-lined member in FIG. 16 is cut along a solid line and then bent downward along a dashed line. The state indicated by. In FIG. 16 (B), the folded portion is doubled and has a four-layer structure of surface hydrophilicized nonwoven fabric / cushioning material / cushioning material / surface hydrophilicized nonwoven fabric. Next, it is folded so that the center dotted line portion is raised, and the state shown in the front view of FIG. In FIG. 16C, the four-layer structure is bent.
According to this method, since the surface hydrophilized non-woven fabric enters the inside of the absorber housing member from the front contact portion and the rear contact portion, the urine stopped at the front contact portion and the rear contact portion is replaced with the surface hydrophilized non-woven fabric. It is transmitted and smoothly moves inside the absorber housing member.

FIG. 23 is a perspective view showing various modifications of the tenth example of the method for simultaneously forming the front contact portion, the rear contact portion, and the opening peripheral portion described above. In FIGS. 23 (A) to 23 (C), the outer surface hydrophilized nonwoven fabric and the cushioning material of the quadruple structure are omitted. Hereinafter, the front contact portion will be described as an example, but the rear contact portion may have the same configuration.
In the modification shown in FIG. 23 (A), the top portion of the surface hydrophilized non-woven fabric (the hatched member in FIG. 23) inside the front contact portion 30h is lowered toward the front. As shown by the arrow, the urine discharged forward moves along the inner surface hydrophilized nonwoven fabric and moves downward. In the case where a liquid guide sheet 80 described later is provided, urine is transferred from the surface hydrophilized nonwoven fabric to the liquid guide sheet 80 and quickly moves into the absorbent body accommodating member.
In the modification shown in FIG. 23 (B), the top of the surface hydrophilized nonwoven fabric inside the front contact portion 30i is cut and divided into two directions, and the inner surface of the surface hydrophilized nonwoven fabric and the liquid guide sheet The contact area with 80 is large. The urine discharged forward moves along the inner surface hydrophilized non-woven fabric and moves downward as indicated by the arrow, and is transferred from the surface hydrophilized non-woven fabric to the liquid guide sheet 80, and quickly accommodates the absorber. Move to the inside of the member. In this modification, since the contact area between the inner surface of the surface-hydrophilized nonwoven fabric and the liquid guide sheet 80 is large, urine moves from the surface-hydrophilic nonwoven fabric to the liquid guide sheet 80 more smoothly.
In the modification shown in FIG. 23C, the front end portion of the surface hydrophilized nonwoven fabric inside the front contact portion 30j is cut, and the cut surface is in contact with the liquid guide sheet 80. That is, in the modified examples shown in FIGS. 23 (A) and 23 (B), the surface hydrophilized nonwoven fabric is wound inside the front contact portion, whereas FIG. 23 (C) shows. The modified example has a shape in which the surface-hydrophilized non-woven fabric is not caught inside the front contact portion 30j but goes out to the opening. The urine discharged forward is stopped by the surface-hydrophilized non-woven fabric and moves downward as indicated by the arrow. In the case where a liquid guide sheet 80 described later is provided, urine is transferred from the surface hydrophilized nonwoven fabric to the liquid guide sheet 80 and quickly moves into the absorbent body accommodating member.

FIG. 17 is a schematic view showing another example of the absorbent article for women of the present invention. 17A is a perspective view, FIG. 17B is a plan view, and FIG. 17C is a lateral end view taken along the line XVIIC-XVIIC in FIG. 17B. In FIG. 17A and FIG. 17B, the absorber is omitted.
A female absorbent article 200 of the present invention shown in FIG. 17 includes the constituent members of the female absorbent article 100 shown in FIG. 1, and further includes an external leak preventer 50. Among the structural members of the female absorbent article 200, the same components as those of the female absorbent article 100 are denoted by the same reference numerals and description thereof is omitted.
As shown in FIG. 17, the external leak preventer 50 is coupled to the absorber housing member 10 on the side surface of the absorber housing member 10, and forms a space for housing the wearer's large labia outside the opening peripheral portion 14. Forming.

FIG. 18 is an explanatory view showing a state in which the wearer wears the female absorbent article 200 of the present invention. FIG. 18 is a lateral end view.
As shown in FIG. 18, the female absorbent article 200 of the present invention has the function of the female absorbent article 100 of the present invention described above when worn, and the large labia LM is the inner surface of the external leak preventer 50. And a space formed by the outer surface of the peripheral portion 14 of the opening.
With such a configuration, first, the external leak preventer 50 has a function of protecting the large labia LM from an external stimulus.
At this time, since the large labia LM is pushed inward by the thigh or the like from the top of the external leak preventer 50, the absorbent article 200 for women generally fits the genitals of the wearer W. .

The female absorbent article 200 of the present invention prevents leakage by accommodating the urethral orifice m, the small labia Lm, and the like in the opening 12 as with the female absorbent article 100 described above. Even if urine leaks out of the absorber housing member 10 due to the above operation, etc., there is no leakage to the outside of the female absorbent article 200 because the external leak preventer 50 exists.
In particular, when urine travels through the opening peripheral portion 14 and leaks out of the absorber housing member 10, it can be prevented from leaking out of the absorber housing member 200 as it is.
Moreover, when urine is discharged | emitted exceeding the absorption rate by the absorber 20, urine can be temporarily stored in the space formed with the external leak preventer 50 and the absorber housing member 10. In particular, when a highly water-absorbent sheet is used as the absorbent body 20, this function is important because the initial absorption rate is slow.
Moreover, an absorber can also be arrange | positioned in the space formed by the external leak preventer 50 and the absorber accommodating member 10.

Here, the lower side of the position where the absorber housing member 10 is coupled to the external leak preventer 50 is made of a liquid-impermeable material. As a result, the internal space of the absorber housing member 10 and the space for housing the wearer's large labia of the external leak preventer 50 are formed of a liquid-impermeable material as a whole (in FIG. The portion composed of the impermeable material is indicated by hatching.)
Moreover, it is preferable that the part above the coupling | bonding position with the external leak preventer 50 of the absorber accommodating member 10 is comprised with the liquid-permeable material. Thereby, even if urine enters the space formed by the external leak preventer 50 and the absorber housing member 10, the urine quickly passes through the absorber housing member 10 and moves to the inside, The absorber 20 can be absorbed.

In the female absorbent article 200 shown in FIG. 17, the external leak preventer 50 is coupled to the side surface of the absorber accommodating member 10. In the present invention, the external leak preventer and the absorber accommodating member The relationship is not limited to this.
FIG. 19 is a schematic cross-sectional view showing the relationship between various other external leak preventers and absorber housing members.
In FIG. 19A, the absorber housing member 11 is composed of two parts 11a and 11b, and the part 11a forming the bottom and side parts and the external leak preventer 50a are made of a liquid-impermeable material. It is composed of one member, and a portion 11b preferably made of a liquid permeable material is coupled to the inside from the inside. In this case, even if urine enters the space formed by the external leak preventer 50a and the absorber housing member 11, the urine quickly passes through the absorber housing member 11 and moves to the inside, It can be absorbed by the absorber 20.

In FIG. 19B, the external leak preventer 50b covers the entire absorber housing member 10 from the outside. The absorber 22 is arranged in a space formed by the external leak preventer 50b and the absorber housing member 10. The absorber 22 can be the same as the absorber 20. The absorber housing member 10 may be a liquid impermeable material or a liquid permeable material. The external leak preventer 50b and the absorber housing member 10 may be bonded together by bonding or the like at an appropriate location.
In this case, even if urine enters the space formed by the external leak preventer 50b and the absorber housing member 10, the urine can be quickly absorbed by the absorber 22.

In the female absorbent article 200 of the present invention shown in FIG. 17, it is preferable that the external leak preventer 50 has a gap between it and the absorber housing member 10. For example, as shown in FIG. 17, it is one of the preferred embodiments that the edge 52 of the external leak preventer 50 is made of a cushioning material. Examples of the cushioning material include foams such as PP, PE, PU, and films. It is also one of preferred embodiments that one or more elastic bodies such as thread rubber are arranged on the edge to form fine pleats.
As a result, a certain amount of space volume is secured even in a portion (near the front end and near the rear end) where there is no large labia in the space formed by the external leak preventer 50 and the absorber housing member 10, and movement of urine is prevented. make it easier.
In addition, the shape of the edge of the external leak preventer is stable, and furthermore, wrinkles are less likely to occur when worn, so that leakage is less likely to occur.

The shape of the edge of the external leak preventer is not limited to the shape shown in FIG.
FIG. 20 is a schematic cross-sectional view showing the shape of the edge of another external leak preventer. The edge part 52a of the external leak preventer shown in FIG. 20 is provided so that the end part is on the outside. In this case, the adhesion with the wearer may be higher and leakage may be reduced.

  The distance between the left and right external leak preventers is preferably 30 to 100 mm at the nearest portion. Within the above range, each function of the external leak preventer described above is easily exhibited.

In the female absorbent article 200 of the present invention shown in FIG. 17, the front leak preventer 60 that forms the front end space by closing the front ends of the left and right external leak preventers 50, and the left and right external leak preventers 50. And a rear leak preventer 70 that closes the rear end to form a rear end space.
The front leak preventer 60 shown in FIG. 17 is coupled to the front end portion of the absorber housing member 10 and is closed in a state of covering the front ends of the left and right external leak preventers 50 to form a bag shape. A space is formed, and its end reaches the front end of the front contact portion 30. In the present invention, the structure of the front leak preventer 60 is not particularly limited as long as it forms a bag and forms the front end space.
The front leak preventer 60 cooperates with the external leak preventer 50 to prevent urine leaking out of the opening peripheral portion 14 from leaking out of the female absorbent article 200. In particular, when urine travels through the opening peripheral portion 14 and leaks out of the absorber housing member 10, it can be prevented from leaking out of the absorber housing member 200 as it is.
Moreover, when urine is discharged | emitted exceeding the absorption speed by the absorber 20, urine can be temporarily stored in the front-end part space.

The front leak preventer 60 shown in FIG. 17 is in contact with the front end of the front leak preventer 30 but does not cover the front contact portion 30. In this way, when the front contact portion 30 is not covered, the front leak preventer 60 is flat in the left-right direction, so that wrinkles are unlikely to occur when worn, so that urine flows forward over the front leak preventer 60. Can be efficiently prevented.
On the other hand, when the front leak preventer covers a part or all of the front contact portion (not shown), the front end space is reduced although it is easy to cause wetness and wrinkles when worn along the front leak preventer. Since it can be made relatively large, it has an excellent urine storage function.

  Since the rear leak preventer 70 is substantially the same as the front leak preventer 60, the description thereof is omitted.

Moreover, in the absorbent article for women of the present invention, it is one of preferred embodiments that the absorbent body is disposed so as to be separated from the left and right. Thereby, the following effects are acquired.
First, deformation at the center in the left-right direction is facilitated. For this reason, it becomes easy for the wearer to wear the absorbent article for women at an appropriate position.
Second, due to the above deformation, urine discharged to the central portion easily moves left and right and back and forth, and is thus easily absorbed by the absorber.
Third, since there is no absorber in the wearer's crotch, the wearer does not feel uncomfortable at the crotch, especially after absorbing urine.
Fourth, since there is no absorber in the wearer's crotch, problems such as rashes and stuffiness are less likely to occur.
Fifth, since there is no absorber in the center in the left-right direction, even after urine discharge, the discharged urine is quickly distributed to the left and right absorbers and absorbed without being stored in the center. Even when a large amount of urine is excreted in a short time, urine can be efficiently absorbed.

Furthermore, it is preferable that a liquid guide sheet is disposed in contact with the absorber.
FIG. 21 is a schematic view showing examples of various absorbent articles for women of the present invention having the liquid guide sheet 80. 21A, FIG. 21C, and FIG. 21D are lateral end views at positions corresponding to FIG. 1C, and FIG. 21B is a plan view. In FIG. 21B, the parts other than the absorber and the liquid guide sheet are omitted.
The absorbent article 300 for women shown in FIGS. 21A and 21B is basically the same as the absorbent article 100 for women, but the absorbent body 24 is spaced apart from the left and right. A liquid guide sheet 80 is disposed between the left and right absorbers 24.
The liquid guide sheet 80 has a flow path for moving urine. The urine discharged from the wearer's urethral opening to the central portion in the left-right direction of the absorbent body accommodation member 10 quickly moves to the absorbent body 24 through the flow path of the liquid guide sheet 80. Therefore, the wearer does not feel uncomfortable in the crotch.
Moreover, it is preferable that the liquid guide sheet | seat 80 enables the movement of urine between the absorbers 24 arrange | positioned spaced apart from right and left.
When using the absorbent article, the amount of urine absorbed by the left and right absorbent bodies may be significantly biased depending on the posture of the wearer, the wearing position, and the like. In such a case, when the absorbent article for women of the present invention has a liquid guide sheet, urine moves from an absorbent body that absorbs a large amount of urine to a smaller amount, and as a result, the bias is alleviated. Thereby, the substantial urine absorption amount and usable time of an absorbent article become long.

  The liquid guide sheet 80 is not particularly limited as long as it has a flow path that allows urine movement, but it is preferable that the liquid guide sheet 80 does not have body fluid absorbability or body fluid retention because the urine moves quickly. . Specifically, a concavo-convex sheet member (hereinafter referred to as an “open / recessed concavo-convex sheet member”) having an opening in a convex portion to be described later is preferably exemplified.

FIG. 22 is a schematic perspective view showing an example of an apertured uneven sheet member having apertures in all of the convex portions. The liquid guide sheet 80, which is an apertured concave-convex sheet member shown in FIG. 22, has a large number of projections 81 that form convex portions, and each projection 81 has an aperture 82 at its apex. In the apertured concavo-convex sheet member, a part of the convex part may have an aperture, or the entire convex part may have an aperture.
The perforated concave-convex sheet member has a concave-convex surface having a concave portion and a convex portion as at least one surface. In the perforated concave-convex sheet member, a large number of concave portions are connected to function as a body fluid flow path. The perforated uneven sheet member has an advantage that the flow of body fluid is not hindered even if the convex part is slightly collapsed during use.
Further, in the apertured uneven sheet member, the aperture also functions as a body fluid flow path.
In the present invention, it is preferable to use the apertured uneven sheet member with the wider side of the aperture (the surface not visible in FIG. 22) facing the wearer.

Examples of the material of the apertured uneven sheet member include a body fluid impermeable film made of a resin such as PE, PP, PVA, and urethane.
Specific examples of the apertured concavo-convex sheet member include those proposed by the present inventor in WO 02/065965.

  When an apertured uneven sheet member is used as the liquid guide sheet, body fluid may remain in the apertures, resulting in liquid residue, and so-called rewet values may deteriorate. In this case, it is preferable to use a hydrophilic diffusion sheet in combination on the lower side of the apertured uneven member. Thereby, since the bodily fluid which exists in an opening | penetration osmose | permeates a hydrophilic diffusion sheet and moves, a rewet value becomes low significantly. Moreover, it is prevented that the apertured uneven sheet member is displaced from the leak preventer, and the shape stability is also improved.

As the hydrophilic diffusion sheet, a hydrophilic nonwoven fabric having a relatively low basis weight is preferably used. Examples of the hydrophilic nonwoven fabric include tissue or hydrophilic nonwoven fabric containing rayon, cotton, wood pulp and the like. Specific examples include tissue paper, rayon spunbond (for example, TCF, manufactured by Futura Chemical), cotton spunlace, rayon / PP mixed spunlace, and rayon / PET mixed spunlace.
Further, non-woven fabrics made hydrophilic by surface-treating synthetic nonwoven fabrics such as PP, PE or PET spunbond nonwoven fabrics, PP thermal pound nonwoven fabrics, and PE / PET through-air nonwoven fabrics with a surfactant or the like.
The apertured concavo-convex sheet member and the hydrophilic diffusion sheet may be simply overlapped and laminated, or may be combined by hot melt, thermal lamination, or the like.

It is preferable to use a bodily fluid impermeable sheet in combination under the hydrophilic diffusion sheet. Thereby, the body fluid is not temporarily stored between the hydrophilic diffusion sheet and the sheet portion of the leak preventer, and quickly moves to the bag portion of the leak preventer. Examples of the material for the body fluid impermeable sheet include films made of resins such as PE, PP, PVA, and urethane.
The hydrophilic diffusion sheet and the body fluid impermeable sheet may be simply stacked and laminated, or may be combined by hot melt, thermal lamination or the like.
Moreover, you may use combining a hole uneven | corrugated sheet | seat member and a bodily fluid impermeable sheet | seat, without using a hydrophilic diffusion sheet.
The perforated uneven sheet member and the body fluid impermeable sheet may be simply overlapped and laminated, or may be combined by hot melt, thermal lamination or the like.

  A female absorbent article 310 shown in FIG. 21 (C) is basically the same as the female absorbent article 300, but in addition to the absorbent body 24, an absorbent body is provided under the liquid guide sheet 80. 26 is spaced apart from the left and right.

The absorbent article 320 for women shown in FIG. 21 (D) is basically the same as the absorbent article 100 for women, but the left and right ends of the absorbent body 28 rise and bend inward. ing. In addition, a liquid guide sheet 80 is disposed on the central portion of the absorber 28 via a leak-proof film 90. Examples of the leak-proof film include resin films such as PE, PP, PET, EVA and the like.
In this aspect, the urine discharged from the wearer's urethral opening to the central portion in the left-right direction of the absorber housing member 10 quickly moves to the absorber 28 through the flow path of the liquid guide sheet 80. Further, when the liquid guide sheet 80 is an apertured uneven sheet member, a part of the urine passes through the unevenness of the apertured uneven sheet member, reaches the leak-proof film 90, moves to the front, back, left and right, Absorbed by the absorber 28. Therefore, the wearer does not feel uncomfortable in the crotch.

FIG. 24 is a schematic lateral end view showing still another example of the female absorbent article according to the present invention.
The absorbent article 330 for women shown in FIG. 24 is basically the same as the absorbent article 200 for women, but the shape of the absorbent body 29 is different, whereby the absorbent body 29 and the cushioning member 16 are separated. The positional relationship is different.
The absorber 29 has a three-layer structure in which the left and right ends are folded twice together with the tissue 95. In addition, a liquid guide sheet 80 is disposed on the central portion of the absorber 29 via a leak-proof film 90. The lower surface of the second layer of the portion having the three-layer structure of the absorber 29 is bonded to the upper surface of the liquid guide sheet 80 by a hot melt adhesive 85. With such a structure, deformation of the absorber 29 is suppressed, and stabilization of the form is achieved.
A liquid guide sheet 80, a tissue 95, a strip-shaped leak-proof film 90, and an absorber 29 are laminated from the top in the central portion inside the absorber housing member 10.
The cushioning member 16 disposed on the lower side of the opening peripheral portion 14 is disposed so as to fit inside the portion of the absorbent body 29 having a three-layer structure, and in this respect, the absorbent article 320 for women. And different. By adopting such a structure, even if the absorption of urine by the absorber 29 proceeds, the positions of the opening peripheral portion 14 and the cushioning member 16 are not significantly affected by the expansion of the absorber 29. The contact state and positional relationship between 14 and the wearer's large labia are not changed, and the wearing state is stably maintained. Therefore, occurrence of urine leakage is more effectively prevented.

The absorbent article for women of the present invention comprises a part in contact with the genitals (for example, the upper surface of the absorber that can contact the small labia, the upper surface of the liquid guide sheet; the outer surface of the absorber housing member that can contact the large labia, and the external leak preventer The skin contact sheet can be provided on the inner surface). When the skin contact sheet is provided, the surface feel when worn is excellent.
The skin contact sheet is not particularly limited as long as it is permeable to body fluids, and a known one that has been conventionally used as a top sheet can be used. Specifically, for example, a nonwoven fabric of synthetic fibers such as a PP nonwoven fabric, a PET nonwoven fabric, and a PE nonwoven fabric can be used. A dry nonwoven fabric obtained by mixing hydrophilic fibers such as rayon and cotton and synthetic fibers can also be used.

The absorbent article for women of the present invention is one of the preferred embodiments that is used in combination with a stool processing sheet for receiving stool.
As the stool processing sheet, for example, a water-absorbing nonwoven fabric made of pulp or the like, specifically, kinocros manufactured by Oji Kinocloth Co., Ltd. is preferably used. In particular, brushed non-woven fabrics are preferable in that they can be entangled and fixed with soft stool.

It is a schematic diagram which shows the example of the absorbent article for women of this invention. It is explanatory drawing which shows the state which the wearer wore the absorbent article for women of this invention. It is a typical perspective view which shows the front contact part of various shapes. It is a typical horizontal end view which shows the structure of various front contact parts. It is a schematic diagram which shows the structure of the various front contact part using a liquid-permeable member. It is a typical top view explaining the positional relationship of a front contact part and a back contact part, and an opening. It is a top view which shows the shape of various opening. It is a typical horizontal end view which shows the shape of various opening peripheral parts. It is a typical horizontal end view which shows the position of various cushioning members. It is a typical top view which shows the structure of a various opening peripheral part. It is explanatory drawing which shows the 1st example of the method of forming a front contact part and a back contact part, and an opening peripheral part simultaneously. It is explanatory drawing which shows the 2nd example of the method of forming a front contact part and a back contact part, and an opening peripheral part simultaneously. It is explanatory drawing which shows the 3rd example of the method of forming a front contact part and a back contact part, and an opening peripheral part simultaneously. It is explanatory drawing which shows the 4th-6th example of the method of forming a front contact part and a back contact part, and an opening peripheral part simultaneously. It is explanatory drawing which shows the 7th-9th example of the method of forming a front contact part and a back contact part, and an opening peripheral part simultaneously. It is explanatory drawing which shows the 10th example of the method of forming a front contact part and a back contact part, and an opening peripheral part simultaneously. It is a schematic diagram which shows another example of the absorbent article for women of this invention. It is explanatory drawing which shows the state which the wearer wore the absorbent article for women of this invention. It is typical sectional drawing which shows the relationship between various other external leak preventers and an absorber accommodating member. It is typical sectional drawing which shows the shape of the edge part of another external leak preventer. It is a schematic diagram which shows the example of the various absorbent article for women of this invention which has a liquid guide sheet | seat. It is a typical perspective view which shows the example of the apertured uneven | corrugated sheet | seat member which has an aperture in all the convex parts. It is a perspective view which shows the various modifications of the 10th example of the method of forming a front contact part and a back contact part, and an opening peripheral part simultaneously. It is a typical horizontal end view which shows another example of the absorbent article for women of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, 11 Absorber accommodating member 11a, 11b Absorber accommodating member part 12, 12a-12c, 13a-13d Opening 14, 14a-14l Opening peripheral part 16, 16a-16c Cushioning member 20, 22, 24, 26, 28, 29 Absorber 30, 30a-30j, 31 Front contact portion 32, 32 ', CM core material 34 Cushion material 36, 36' Nonwoven fabric 38, 38 ', 38 "Liquid permeable member 40 Back contact portion 50, 50a, 50b External leak preventer 52, 52a Edge of external leak preventer 60 Front leak preventer 70 Rear leak preventer 80 Liquid guide sheet 81 Projection 82 Opening 85 Hot melt adhesive 90 Leak preventive film 95 Tissue 100, 200, 300 , 310, 320, 330 Absorbent article for women C clitoris LM large labia Lm small labia m urethral orifice P perineum W wearer

Claims (14)

A liquid-impermeable member is used as a material, which has an opening for accommodating the wearer's small labia and has an opening peripheral portion for positioning the wearer's large labia outside the opening . , A bag-shaped absorber housing member;
An absorber that contains a superabsorbent resin and that can absorb bodily fluids, disposed inside the absorber housing member, at least one layer;
A protrusion-like front contact portion for contacting the wearer's clitoris front portion, formed at the front portion of the absorber housing member;
An absorbent article for women for absorbing urine, comprising a protruding rear contact part formed on the rear part of the absorbent body containing member for contacting the perineum part of the wearer. A bag-shaped absorbent body containing member that forms an opening for accommodating the wearer's small labia therein and has an opening peripheral portion for positioning the wearer's large labia outside the opening;
An absorber that contains a superabsorbent resin and that can absorb bodily fluids, disposed inside the absorber housing member, at least one layer;
A protrusion-like front contact portion for contacting the wearer's clitoris front portion, formed at the front portion of the absorber housing member;
Protruding rear contact part for contacting the wearer's perineal part, formed at the rear part of the absorber housing member,
Comprising a <br/> an external leak preventer configured by a liquid-impermeable material for forming a space for accommodating the labia majora of the wearer in the outer side of the opening periphery,
The use of a liquid-impermeable member or the liquid-permeable member wherein the portion having the external leak preventer outside the absorber housing member as the material, said portion without external leak preventer outside of the absorber housing member In some cases, an absorbent article for women for absorbing urine, the part of which uses a liquid-impermeable member as a material . The external leak preventer is coupled to the absorber housing member;
The lower side than the coupling position with the external leak preventer of the absorber housing member is made of a liquid-impermeable material,
The absorbent article for women according to claim 2 , wherein the internal space of the absorbent body containing member and the space for housing the large labia of the wearer of the external leak preventer are formed of a liquid-impermeable material as a whole. .   The absorbent article for women according to claim 3, wherein an upper side of a position where the absorbent body accommodating member is coupled to the external leak preventer is formed of a liquid permeable material.   Furthermore, the front leak preventer that closes the front ends of the left and right external leak preventers to form the front end space and / or the rear that closes the rear ends of the left and right external leak preventers to form the rear end space. The absorbent article for women according to any one of claims 2 to 4, further comprising a leak preventer.   The absorbent article for women according to claim 1, wherein the peripheral portion of the opening is made of a cushioning material.   Furthermore, the absorbent article for women according to any one of claims 1 to 6, wherein a cushioning member is disposed below the periphery of the opening. The absorbent article for women according to claim 7, wherein the cushioning member is a foam sheet having a thickness of 1 to 20 mm and a density of 20 to 40 kg / m ³ .   The absorbent article for women according to any one of claims 1 to 8, wherein an edge of the external leak preventer is formed of a cushioning member.   The absorbent article for women according to claim 1, wherein a part or all of the front contact portion and / or the rear contact portion is formed of a foam.   The absorbent article for women according to claim 10, wherein the foam is a soft polyurethane sheet having a thickness of 1 to 5 mm.   The absorbent article for women according to claim 11, wherein two or more layers of the flexible polyurethane sheet are laminated.   The absorbent article for women according to any one of claims 10 to 12, wherein the foam is coated with a nonwoven fabric. The absorbent article for women according to claim 13, wherein the nonwoven fabric is a surface-hydrophilized nonwoven fabric.

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