JP2952175B2 - Absorbent articles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an absorbent article worn in contact with the skin to absorb body fluids such as sanitary napkins, and more particularly, to an absorbent article excellent in preventing lateral leakage. It is about.

[0002]

2. Description of the Related Art Conventionally, various absorbent articles such as disposable diapers and sanitary napkins have been proposed and put to practical use. There is a problem in that the device may be soiled, thereby giving the user discomfort. Various improvements have been made to solve this problem.

[0003] For example, a leak-proof wall is formed on both sides in the longitudinal direction of the absorbent article, the shape of the absorbent article itself is shaped in advance in accordance with the shape of the mounting portion, and an elastic body is provided so that the shape at the time of mounting is provided. It has been proposed to be able to follow changes, and more specifically, Japanese Utility Model Publication No. 60-19693.
Japanese Patent Application Publication No. JP-A-2006-15095 proposes an absorbent article in which a flap portion in which a top sheet and a back sheet are bonded on both left and right sides is bent to the surface of the absorbent article.
JP-A-3491 proposes an absorbent article in which a flap portion in which a top sheet and a back sheet are bonded on both left and right sides is bent to the surface of the absorbent article, and then further folded outward. .

[0004] However, in the above-described absorbent article, when the user places the excretion part in the central part of the absorbent body and wears underwear in close contact with the body, the liquid leakage from the absorbent main body is reduced. The liquid leakage has not yet been completely suppressed. In particular, at the time of actual use, the wearing state of the absorbent article is not only the above-mentioned wearing state, but the excretion part is worn in a state shifted from the center of the absorber, or the worn absorbent article is worn by the wearer. May not be able to follow the complicated form due to the movement of the body, and a gap may be formed between the absorbent article and the mounting part. At present, the prevention effect cannot be obtained. Further, in the above-described absorbent article, both front and rear ends of the bent flap portion are adhered to the absorbent article at both front and rear ends of the absorbent article, and a portion that comes into contact with the excretion part of the user when worn. Was not sufficient, and the side leakage still occurred.

[0005] Accordingly, it is an object of the present invention to provide an absorbent article which has an excellent fit to a part which comes into contact with the excretory part of a user when worn, and is less likely to cause lateral leakage.

[0006]

Means for Solving the Problems The present inventors have conducted intensive studies in order to solve the above problems, and as a result, have found that an absorbent article having a flap of a specific shape can achieve the above object.

The present invention has been made based on the above findings, and has a central absorbent comprising a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber disposed between the two sheets. The body part, and in the absorbent article having flaps provided on both left and right sides of the central absorbent body part, the flap is provided continuously on the non-skin contact surface side of the absorbent article, and The central absorber is bent toward the top sheet side to form leak-proof walls located on left and right side edges of the central absorber, respectively, and further outwardly of the central absorber. It is folded back to form a leak- proof surface, and an elastic member is arranged on the leak- proof surface, and the leak- proof wall is formed at a front portion and a rear portion of a portion that comes into contact with a user's excretory portion when worn. It is fixed to the central absorber part,
The leak-proof surface at the part contacting the excretory part is formed in a plane substantially parallel to the skin contact surface of the central absorbent part .
The length of the front part from the front edge of the absorbent article
Is 2 to 8 cm and above the rear edge of the absorbent article
The length of the rear part is 3 to 25 cm, and the front part and
Abut on at least the excretory part of each of the rear parts
At the position closest to the part
Another object of the present invention is to provide an absorbent article fixed to an absorber section .

[0008]

According to the absorbent article of the present invention, the flap continuously provided on the non-skin contact surface side is bent toward the top sheet side of the central absorbent portion to form a leak-proof wall. It is folded back to form a leak-proof surface. In addition, the leak-proof wall is
The central absorbent body is fixed at the front part and the rear part of the part that comes into contact with the excretory part of the user when worn, so that the leak-proof surface at the part that comes into contact with the excretory part is made of the central absorbent body. It is formed in a plane substantially parallel to the skin contact surface of the part. And the sanitary napkin which is the absorbent article of the present invention has such a structure, whereby a side pocket is formed between the flap and the central absorbent portion, and the body fluid flows from the surface of the top sheet. Also, the body fluid does not leak through the flap, and the leak-proof surface can be provided at a position higher than the skin contact surface of the sanitary napkin, so that even if the absorber becomes thicker, it has a good fit. It does not drop. In addition, since the leak-proof surface spreads along the wearer's skin at the time of wearing and the flap is not folded into the absorber, side pockets are formed stably, and furthermore, the deformation of the absorber is suppressed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described more specifically with reference to the drawings. Here, FIG. 1 shows a first example of the absorbent article of the present invention.
It is a perspective view showing a sanitary napkin as an example of the embodiment,
2 is a cross-sectional perspective view of the sanitary napkin shown in FIG. 1 (a cross-sectional view taken in the width direction at the center in the longitudinal direction of the napkin, and a perspective view from the cross-section to the front part of the napkin).
In FIG. 2, the cross-sectional shape is schematically shown.
FIG. 3 is a plan view of the sanitary napkin shown in FIG. 1, FIG. 4 is a schematic view showing a cross section of the sanitary napkin shown in FIGS. 1 and 3, and FIG. 3 is a schematic view showing a II section, FIG. 4B is a schematic view showing a II-II section of FIG. 3, and FIG. 4C is a III-II section of FIG.
FIG. 4D is a schematic diagram showing a cross section of FIG.
FIG. 4 is a schematic diagram showing an IV section.

A sanitary napkin 1 of the present embodiment shown in FIGS. 1 to 4 has a liquid-permeable top sheet 11, a liquid-impermeable back sheet 12, and an absorber 13 disposed between the two sheets. And a flap 20 provided on both right and left sides of the central absorber 10. Such a structure is similar to a normal sanitary napkin.

To explain the sanitary napkin 1 of the present embodiment, the top sheet 11 and the back sheet 12 are formed so as to be entirely larger than the absorber 13 so as to have extensions. The flap is formed by bonding an extension of the top sheet and an extension of the back sheet. Thereby, the front edge 4 and the rear edge 5 are formed. Here, the top sheet 11 and the back sheet 12 are bonded together by a normal method such as a heat sealing method or an adhesive method.

The absorber 13 is fixed to the backsheet 12 through an absorber fixing agent 14, as shown in FIGS.

The sanitary napkin 1 is attached to shorts on the left and right sides of the non-skin contact surface 3 side of the central absorbent portion 10 of the sanitary napkin 1 when the sanitary napkin 1 is used. Is provided.

The material for forming the top sheet 11 and the back sheet 12 is not particularly limited as long as it is generally used as a top sheet and a back sheet for absorbent articles such as sanitary napkins. . In addition, as the absorber 13, a generally known absorber made of pulp, a superabsorbent polymer, or the like can be used without particular limitation. Furthermore, as the absorbent fixing agent 14 and the shift preventing agent 15, adhesives that are usually used for absorbent articles such as sanitary napkins can be used without any particular limitation.

Thus, the sanitary napkin 1 of this embodiment is
As shown in FIGS. 1 to 3, the flap 20 is provided continuously on the non-skin contact surface 3 side of the sanitary napkin, and is directed toward the top sheet 11 side of the central absorbent body 10. It is bent to form leak-preventing walls 21 located on both left and right edges of the central absorber 10, respectively.
The central absorbent body portion 10 is folded outward to form a leak-proof surface 24, and the leak-proof wall 21 is a front portion and a rear portion of the portion 6 that comes into contact with the excretory portion of the user when worn. In the above, the leak-proof surface 24 at the portion 6 which is in contact with the excretory portion is formed in a surface shape substantially parallel to the skin contact surface 2 of the central absorbent portion 10. ing.

More specifically, FIG. 2 and FIG.
As shown in (A) to (D), the top sheet 11
Extends over the side surface of the absorber 13 and is attached to the extension of the back sheet 12, whereby the extension of the top sheet 11 and the extension of the back sheet 12 The flap 2 to be formed
0 is continuously provided on the non-skin contact surface 3 side.

Further, the flap 20 is shown in FIGS.
As shown in (A) to (D), the leakage prevention wall 2 is bent at the side edge of the central absorber 10.
2 and FIGS. 2 and 4 (B) to 4 (D).
As shown in FIG. 5, the leakage preventing surface 24 is formed by being folded outwardly of the central absorbent body portion 10 slightly above the skin contact surface 2 of the sanitary napkin 1.

The leak preventing wall 21 has a front fixing portion 22 (see FIGS. 1, 3 and 4B) at a front portion and a rear portion of the portion 6 which comes into contact with the excretory portion. The top sheet 1 in the central absorber 10 via a fixing portion 23 at a rear portion (see FIGS. 1, 3 and 4D).
Fixed to 1. Here, the “site that contacts the excretion part” refers to a surface portion of the sanitary napkin that contacts the excretion part of the wearer when using the sanitary napkin, and specifically, This portion is located between the fixing portion 22 and the fixing portion 23 in the longitudinal direction of the napkin. Further, the “front portion” refers to all of the portion located in front of the contact part 6 (front side of the wearer) with respect to the excretory portion, and also includes the front edge portion. Further, the “rear part” refers to all of the part located behind the contact part 6 (rear side of the wearer) with respect to the excretory part, and includes the rear edge part. Further, the fixing portions 22 and 23 can be easily formed by using an adhesive or the like usually used for an absorbent article or by heat sealing or the like.

As shown in FIG. 2 and FIG. 4C, the leak-preventing wall 21 and the central absorber portion at the portion 6 which comes into contact with the excretory portion are fixed as described above. A side pocket 25 is formed between the side pocket 25 and the side pocket 25. Also, as shown in FIGS. 2, 3 and 4 (C),
By being fixed as described above, the leak-proof surface 24 at the portion 6 that comes into contact with the excretory portion is slightly above the skin-contact surface 2, and the skin-contact surface 2 of the central absorbent body 10 is slightly above the skin-contact surface 2. It is formed in a plane shape substantially parallel to.

As shown in FIGS. 1 to 4, the sanitary napkin 1 of this embodiment has a fixing portion at the front portion without heat sealing the flap 20 at the front edge portion 4 and the rear edge portion 5. Fixing points 2 in front of 22 (the part located on the front side of the wearer when used in a sanitary napkin) and rear part
3 (the part located on the rear side of the wearer when used in the sanitary napkin), the folded state is gradually released toward the front or the rear, respectively, so that the flap 20 is placed on a substantially flat surface. Shape. By forming in this manner, the leak prevention surface 24 can be formed and held stably by the shape substantially parallel to the skin contact surface 2 and the side pockets 25.

Further, in the sanitary napkin 1 of the present embodiment, the length L of the portion 6 which comes into contact with the excretory part is preferably 3 to 20 cm, more preferably 5 to 15 cm. In the sanitary napkin 1, the length M of the front portion of the napkin located forward of the fixing portion 22 is :
2 to 8 cm. Furthermore, in the sanitary napkin 1, the length N of the napkin rear portion located rearward of the fixed part 23 is a 3 ～25Cm, the good Mashiku 5-18
cm.

The width S of the leak-proof surface 24 at the part 6 which contacts the excretory part is preferably 0.5 to 4 cm.
And more preferably 0.7 to 2.5 cm.
If it is less than 0.5 cm, the leak-proof wall 21 may fall down on the central absorber 10 and the side pocket 25 may not be formed. If it is more than 4 cm, the planar shape of the leak-proof surface 24 is difficult to maintain. In addition, since the liquid leakage may be induced, it is preferable to be within the above range. In addition, the height of the leakage prevention surface 24 (the height from the non-skin contact surface 3) U (see FIG. 2)
Is preferably 40 mm or less, more preferably 5 to 25
mm. Further, the width T between the left and right leak-proof surfaces 24 at the portion 6 contacting the excretion part is 30 mm or more so that the leak-proof surface 24 does not block the skin contact surface 2 of the central absorbent body 10. Preferably it is.

Since the sanitary napkin 1 of the present embodiment has the above-described structure, the leak-proof surface 24 fits well on the wearer's skin and effectively prevents lateral leakage. And, specifically, the side pocket 25
Is formed, the excrement flowing on the surface of the top sheet 11 once flows into the side pockets 25, and then the absorbent 13 from the side surface of the central absorbent portion 10.
And lateral leakage can be effectively prevented.

In the sanitary napkin 1 of the present embodiment, elastic members 26 are disposed on portions of the leak-proof surface 24 that contact the excretory portion. Due to the arrangement of the elastic member 26, the shape of the leak-proof wall 21 is favorably maintained, and the central absorber 10 of the leak-proof surface 24 is provided.
The planar shape substantially parallel to the skin contact surface 2 is maintained favorably, and the fit to the wearer is further improved. Further, by arranging the elastic member 26 on the leakage prevention surface 24 [outward from the return line 27 (see FIG. 2)], the shape of the side pocket 25 can be enlarged, and the lateral leakage can be effectively prevented. Can be prevented. The elastic member 2
6 is not particularly limited as long as it is an elastic member usually used for an absorbent article, but a foam of a polyolefin or a polyurethane, a natural rubber, or the like can be particularly preferably used. The shape is a string, film,
The shape can be a flat shape or the like. In this embodiment, a string-like elastic member is used. The elastic member 2
Although the number of the six is not particularly limited, when the elastic member 26 has a string-like shape, it is effective to use two or more in terms of shape retention and prevention of side leakage. The elastic member 2
It is preferable to use a member 6 having an elastic force such that the stress at the time of elongation of the flap 20 provided with the elastic member 26 at 20% becomes 100 g or less. In addition, the absorbent article of the present invention is not limited to the above-described embodiment, and may be applied to, for example, a disposable diaper.

Next, second to fifth embodiments of the absorbent article according to the present invention will be described with reference to FIGS. Here, FIG. 5 is a cross-sectional view (corresponding to FIG. 4C) showing a sanitary napkin as a second embodiment of the absorbent article of the present invention, and FIG. 6 is an absorbent article of the present invention. Sectional view showing a sanitary napkin as a third embodiment of the present invention [equivalent to FIG. 4 (C)].
FIG. 7 is a sectional view (corresponding to FIG. 4 (C)) showing a sanitary napkin as a fourth embodiment of the absorbent article of the present invention, and FIG. 8 is an absorbent article of the present invention. It is sectional drawing [figure 4 (C) equivalent figure] which shows the sanitary napkin as 5th Example of FIG. The points that are not particularly described in the second to fifth embodiments are the same as those in the first embodiment.

In the sanitary napkin 1 of the second embodiment shown in FIG. 5, the flap 20 is formed by the top sheet 11. Specifically, the top sheet 11
Is joined to the back sheet 12 at the non-skin contact surface 3 side, and furthermore, the left and right side edges are extended outward, so that the flap 20 is attached to the non-skin contact surface. It is provided on three sides. And the flap 20
Forms the leak-proof wall 21 and the leak-proof surface 24 in the same manner as the flap 20 in the first embodiment, and is folded back toward the non-skin contact surface 3 at the side edge of the leak-proof surface 24. The elastic member 26 is disposed between the folded portion and the leak-proof surface 24. At this time, the top sheet 11 forming the flap 20 needs to be waterproof, and the top sheet 11 that can be used in this case is a commonly used top sheet material. In the above, only the portion forming the flap is subjected to water repellent treatment, the portion in contact with the absorber is perforated, but the portion forming the flap is laminated on the portion forming the non-perforated plastic sheet or flap. And the like.

In the sanitary napkin 1 of the third embodiment shown in FIG. 6, the flap is formed by the back sheet. Specifically, the back sheet 12 is joined to the top sheet 11 at one end on the non-skin contact surface 3 side, and further,
The left and right side edges are formed so as to extend outward, whereby the flap 20 is connected to the non-skin contact surface 3 side. Then, the flap 20 is provided in the same manner as the flap 20 in the first embodiment described above.
1 and a leak-proof surface 24, which is folded at the side edge of the leak-proof surface 24 toward the non-skin contact surface 3,
6 is disposed so as to be sandwiched between the folded portion and the leakage prevention surface 24.

In the sanitary napkin 1 of the fourth embodiment shown in FIG. 7, the flap 20 is formed of a sheet 30 other than the top sheet 11 and the back sheet 12.

As the other sheet 30, a sheet subjected to a waterproof treatment, a liquid-impermeable sheet, or the like can be used. Examples of the sheet subjected to the waterproofing treatment include a nonwoven fabric or the like treated with a water-repellent oil agent. As the liquid impermeable sheet, a plastic sheet of ethylene, polypropylene or the like, or a sheet obtained by laminating a nonwoven fabric And the like.

More specifically, the top sheet 11
Covers the left and right side surfaces of the absorbent body 13 and covers the left and right side edges of the non-skin contact surface 3 side.
The edge portion is sandwiched and fixed between the top sheet 11 and the back sheet 12 on the non-skin contact surface 3 side, whereby the flap 20 is continuously provided on the non-skin contact surface 3 side. I have. The flap 20 forms a leak-proof wall 21 and a leak-proof surface 24 in the same manner as the flap 20 in the first embodiment, and a non-skin contact surface is formed by a side edge of the leak-proof surface 24. 3 and the elastic member 26 is disposed so as to be sandwiched between the folded portion and the leak-proof surface 24.

In the sanitary napkin 1 of the fifth embodiment shown in FIG. 8, the flap 20 is formed by the other sheet 30 other than the top sheet 11 and the back sheet 12, and On the skin contact surface 3 side, an adhesive portion 4 for fixing to the underwear when the absorbent article 1 is used.
1 is provided.

More specifically, the top sheet 11
Covers the left and right side edges of the non-skin contact surface 3 side by covering the left and right side surfaces of the absorbent body 13.
0 is the top sheet 11 on the non-skin contact surface 3 side.
And the back sheet 12 for clamping and fixing.
Thereby, the flap 20 is continuously provided on the non-skin contact surface 3 side. The flap 20 is connected to the first flap.
Leakproof wall 21 in the same manner as flap 20 in the embodiment of FIG.
And a leakage prevention surface 24, which is folded back toward the non-skin contact surface 3 at a side edge of the leakage prevention surface 24, and has an elastic member 26.
Is disposed between the folded portion and the leak-proof surface 24. The wing portion 40 is formed by extending the left and right side edges of the back sheet outward from the left and right side edges of the absorber.
Is formed by applying an adhesive to the non-skin contact surface 3 side of the wing portion. As the pressure-sensitive adhesive, a generally known pressure-sensitive adhesive can be used without particular limitation.

The same effects as those of the first embodiment can be obtained in the second to fifth embodiments.

Next, a sixth embodiment of the absorbent article according to the present invention will be described with reference to FIGS. Here, FIG. 9 is a plan view showing a sanitary napkin as a sixth embodiment of the absorbent article of the present invention, and FIG .
FIG. 1 is a schematic view showing a cross section of the sanitary napkin shown in FIG.
0 (A) is a schematic view showing a II section, and FIG.
(E) is a schematic diagram showing a VV cross section . It should be noted that parts that are not particularly described are formed in the same manner as in the first embodiment. In addition, II-II sectional views in FIG.
-IV sectional views are the same as FIGS. 4B to 4D, respectively.

Thus, the sanitary napkin 1 of this embodiment is
As shown in FIGS. 9 and 10A, the sanitary napkin 1
At the front edge 4 of the flap 20
In the folded state, it is heat-sealed with the leak-proof surface facing upward and fixed. 9 and FIG.
As shown in (E), at the rear edge 5, the flap 20 has a substantially flat planar shape. That is, in the sanitary napkin 1 of the present embodiment, the central absorbent body portion 10 and the flap 20 abut on the front side of the fixing portion 22 (the portion located on the front side of the wearer when used in the sanitary napkin). The side pocket is configured to be formed in the entire area of the portion, and at the rear of the fixing portion 23 (the portion located on the rear side of the wearer when used in the sanitary napkin), the above-described side pocket is gradually increased toward the rear. The folded state is released and the flap 20
Are configured to have a flat shape.

Since the sanitary napkin 1 of the present embodiment has the above-described structure, it can effectively prevent side leakage and back leakage in particular, and can be used at night or for a long time. It is suitable.

The absorbent article of the present invention is not limited to the above-described embodiment. For example, the absorbent article according to the first embodiment shown in FIGS. . That is, in the sanitary napkin 1 of the present invention, at the front edge 4 and the rear edge 5, the folded flap 20 is heat-sealed with the leak-proof surface facing upward in the folded state, It may be fixed. Thereby, the shape of the flap 20 at the portion 6 that contacts the excretory portion can be maintained in a good condition, and further, the entire side of the portion where the central suction body 10 and the flap 20 abut is covered with the side flap. Pockets can be formed.

Further , in the first embodiment, as shown in FIG. 4D, an example in which the leak-proof wall 21 is fixed to the top sheet 11 on the surface (skin contact surface) of the central absorbent body 10. However, the present invention is not limited to this. For example, the leak-proof wall 21 may be fixed to the top sheet 11 on the side of the central absorber 10.

In the first embodiment shown in FIGS. 1 to 4, the fixing of the leak-preventing wall to the central absorbent portion is described in the form of a dot, but it is linear (the longitudinal length of the absorbent article). (A line along the direction). At this time, the linear fixing can be fixed by an adhesive or a heat seal or the like in the same manner as the fixing point, and the length of the fixing portion formed by fixing the linear is arbitrary. At least one of the fixing portions formed at the front portion and the rear portion of the portion that contacts the excretory portion may extend to the front edge or the rear edge.

[0040]

The absorptive article of the present invention has an excellent fit to a part which comes into contact with the excretory part of the user when worn, and is less likely to cause lateral leakage. Is played. Side pockets are formed between the flap and the central absorbent body portion, so that even if bodily fluid flows from the surface of the top sheet, the bodily fluid does not leak along the flap. Since the leak-proof surface can be provided at a position higher than the skin-contacting surface of the sanitary napkin, the fit does not deteriorate even if the absorber becomes thicker. The leak-proof surface spreads along the skin when worn, and the side pockets can be stably formed without the flap being folded into the absorber. The spread of the leak-proof surface along the skin suppresses the deformation of the absorber. Liquid leakage is suppressed by the leakage preventing wall and the leakage preventing surface. With the leak-proof surface, the spread of the flap to the skin can be promoted, the fit to the skin can be improved, and the discomfort can be reduced. If the flaps are not fixed at the front and rear edges but are opened outward at the front and rear edges so as to form a substantially flat planar shape, the opened flaps prevent the flaps. The side pocket formed by the shape of the leak surface substantially parallel to the skin contact surface and the leak preventing wall can be formed and held stably.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a sanitary napkin as a first embodiment of the absorbent article according to the present invention.

FIG. 2 is a sectional view of the sanitary napkin shown in FIG.
It is a sectional perspective view.

FIG. 3 is a plan view of the sanitary napkin shown in FIG. 1;

4 is a schematic view showing a cross section of the sanitary napkin shown in FIGS. 1 and 2, FIG. 4 (A) is a schematic view showing a II section, and FIG. 4 (B). Is a schematic diagram showing a II-II cross section, FIG. 4 (C) is a schematic diagram showing a III-III cross section, and FIG. 4 (D) is a schematic diagram showing a IV-IV cross section.

FIG. 5 is a sectional view (corresponding to FIG. 4C) showing a sanitary napkin as a second embodiment of the absorbent article according to the present invention.

FIG. 6 is a cross-sectional view (corresponding to FIG. 4 (C)) showing a sanitary napkin as a third embodiment of the absorbent article according to the present invention.

FIG. 7 is a cross-sectional view (corresponding to FIG. 4 (C)) showing a sanitary napkin as a fourth embodiment of the absorbent article according to the present invention.

FIG. 8 is a sectional view (corresponding to FIG. 4C) showing a sanitary napkin as a fifth embodiment of the absorbent article according to the present invention.

FIG. 9 is a plan view showing a sanitary napkin as a sixth embodiment of the absorbent article according to the present invention.

10 is a schematic diagram showing a cross section of the sanitary napkin shown in FIG. 9, FIG. 10 (A) is a schematic diagram showing a II cross section, and FIG. It is a schematic diagram which shows the -V cross section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sanitary napkin 2 Skin contact surface 3 Non-skin contact surface 10 Central absorbent part 11 Top sheet 12 Back sheet 13 Absorber 14 Absorbent fixing agent 15 Displacement preventing agent 20 Flap 21 Leak-proof wall 22 Fixed part 23 Fixed part 24 Leak-proof surface 25 Side pocket 26 Elastic member 30 Other sheet 40 Wing part

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Minoru Nakanishi 23-11 Midori, Minamikawachi-cho, Kawachi-gun, Tochigi Prefecture (56) References JP-A-4-12751 (JP, A) JP-A-58-67258 (JP) , A) (58) Field surveyed (Int.Cl. ⁶ , DB name) A61F 13/15

Claims (5)

(57) [Claims] 1. A central absorber section comprising a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber disposed between the two sheets, and left and right sides of the central absorber section In the absorbent article having the flap provided in the part, the flap is provided continuously on the non-skin contact surface side of the absorbent article, and is bent toward the top sheet side of the central absorbent part. Are formed, respectively, to form a leak-proof wall located on the left and right side edges of the central absorber portion, further folded outward toward the center absorber portion to form a leak-proof surface , An elastic member is disposed on the leak- proof surface, and the leak- proof wall is fixed to the central absorber at a front portion and a rear portion of a portion that comes into contact with a user's excretory portion when worn. The leak-proof surface at the part in contact with the excretory part absorbs the central absorption Skin contact surface parts and are substantially formed parallel planar, the length of the front portion of the forward edge of the absorbent article 2
~ 8 cm and the back from the rear edge of the absorbent article
The length of one side is 3 to 25 cm, the front part and the
At least a part of the rear part that contacts the excretory part
At the position closest to the
An absorbent article fixed to a body part . 2. The method according to claim 1, wherein said excretion part is in contact with said excretion part.
The width of the leak-proof surface is 0.5 to 4 cm,
The height from the non-skin contact surface is 5 to 25 mm,
The width between the right and left leak-proof surfaces at the part that contacts the part is 30 m
The absorbent article of claim 1, wherein the der Rukoto than m. 3. The absorbent article according to claim 1, wherein the flap is formed by bonding an extension of the top sheet and an extension of the back sheet. 4. The absorbent article according to claim 1, wherein the flap is formed by the top sheet or the back sheet. 5. The flap is formed of a sheet other than the top sheet and the back sheet, and the other sheet is a sheet subjected to a waterproof treatment or a liquid-impermeable sheet. The absorbent article according to claim 1, wherein