JP2001046425A - Absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent rumpling and shifting of an absorbent article, not only in its horizontal direction but also in its longitudinal direction by ensuring that it is fixed to shorts. SOLUTION: This absorbent article 1 has a skin abutting surface 2, a skin non-abutting surface 3, and a liquid-retaining absorbing part 4 interposed between the skin abutting surface 2 and the skin non-abutting surface 3, and is formed to be substantially oblong. In this case, the absorbent article 1 has a pair of front and rear flaps 7, 8 covering the skin abutting surface 2 and having adhesive parts on their respective upper surfaces and fixed to the skin abutting surface 2 at the longitudinal ends of the absorbent article 1 in such a manner that they are folded back respectively to the front and rear of the absorbent article 1 when the absorbent article 2 is in use.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an absorbent article particularly suitable as a sanitary napkin or incontinence pad, and more particularly, to an absorbent article having a pair of front and rear flaps at longitudinal front and rear ends.

[0002]

2. Description of the Related Art A sanitary napkin described in JP-A-11-99179 is known as an absorbent article having flaps at front and rear ends in the longitudinal direction. This sanitary napkin has a stretchable elastic member extending in the front-rear direction from the front and rear ends of the napkin, and by forming an adhesive area on the shorts contact surface of the elastic member, even when the shorts worn down. The napkin is intended to maintain close contact with the body.

[0003] However, the napkin is intended to be lifted from the shorts by fixing the napkin to the shorts only at the front and rear ends of the napkin and to approach the wearer's body. In some cases, the liquid leakage cannot be sufficiently prevented when the liquid is distorted or displaced.

Accordingly, an object of the present invention is to provide an absorbent article that can be securely fixed to shorts and that is effectively prevented from being distorted or displaced not only in the left-right direction but also in the front-rear direction.

[0005]

SUMMARY OF THE INVENTION The present invention provides a liquid-permeable skin-contacting surface, a liquid-impermeable non-skin-contacting surface, and an interposition between the skin-contacting surface and the non-skin-contacting surface. The absorbent article having a liquid retaining property, and a pair of front and rear flaps covering the skin contact surface side of the absorbent article in a substantially vertically formed absorbent article, wherein the front and rear flaps are Each has an adhesive portion to shorts on its upper surface, and the front and rear flaps each have a free end and a fixed end, and both fixed ends are the skin contact surface side at the longitudinal front and rear ends of the absorbent article. The above-mentioned object has been achieved by providing an absorbent article which is fixed to each other, and wherein the front and rear flaps are folded back to the front side and the rear side of the absorbent article when the absorbent article is used. It is.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an absorbent article according to the present invention will be described based on preferred embodiments with reference to the drawings. FIG. 1 is a perspective view showing a state before use of a sanitary napkin as one embodiment of the absorbent article of the present invention, and FIG. 2 shows the sanitary napkin shown in FIG. A perspective view of a state in which the front and rear flaps are turned back to make the flaps folded is shown. FIG. 3 shows A-
A sectional view taken along line A is shown.

As shown in FIG. 2, the sanitary napkin 1 of this embodiment has a liquid-permeable top sheet 2 as a skin contact surface, a liquid impermeable back sheet 3 as a non-skin contact surface, And a substantially vertically elongated napkin body having an absorber 4 as a liquid-retaining absorbing portion interposed between the two sheets 2 and 3 and having front and rear edges in an arc shape. The two sheets 2 and 3 extend outward from the left and right side edges and the front and rear edges of the absorber 4, respectively.
Is adhered to the periphery.

As the topsheet 2, a nonwoven fabric such as a suction heat-bonded nonwoven fabric, a nonwoven fabric having a large number of openings, a sheet having a large number of openings in a film such as a polyethylene film, or the like can be used. . As the back sheet 3, a film such as a polyethylene film can be used. Further, as the absorber 4, a mixed fiber of flap pulp and superabsorbent polymer particles,
One-ply absorbent paper or the like in which superabsorbent polymer particles are sandwiched between two absorbent sheets and both absorbent sheets are integrated can be used.

As shown in FIG. 2, at a position slightly forward from the center in the longitudinal direction of the napkin body, the two sheets 2 and 3 extend outward from the left and right side edges of the absorber 4 to form a pair of wings. Parts 5 and 5 are formed. Wing part 5,
On the non-skin contact surface 5, that is, on the back sheet 3, there are provided adhesive portions 5 a, 5 a for wearing shorts formed by applying an adhesive. Further, on the non-skin contact surface of the napkin body, that is, on the back sheet 3, similar adhesive portions 6, 6 are formed in a streak shape along the longitudinal direction of the napkin body. Although not shown, the adhesive portions 5a,
Numeral 6 is covered with a release sheet and protected until the napkin 1 is used.

As shown in FIG. 1, the napkin 1 has a pair of front and rear flaps 7 and 8 which cover the skin contact surface side of the napkin body, that is, the surface sheet 2 side. The front sheet 2 is entirely covered by front and rear flaps 7 and 8. Thereby, the napkin 1 does not expose the surface sheet 2 that is in contact with the wearer's skin until the time of its use, and protects the skin contact surface, so that the surface sheet 2 is kept clean. . Further, since the skin contact surface is protected, there is no particular need for a separate packaging using a packaging material.

Each of the front and rear flaps 7 and 8 has a free end 7.
a, 8a and fixed ends 7b, 8b. Fixed end 7
b and 8b are fixed on the skin contact surface side at the front and rear ends in the longitudinal direction of the napkin body, that is, on the topsheet 2. The fixed ends 7b and 8b are fixed in an arc shape along the curved shape of the front and rear end edges of the napkin body. Fixed end 7b,
As shown in FIGS. 2 and 3, the pocket-shaped leak-proof portion 9 is provided between the front and rear flaps 7, 8 and the top sheet 2 at the front and rear ends of the napkin body, as shown in FIGS.
Are respectively formed. Although FIGS. 2 and 3 show only the leak-proof portion 9 formed at the front end of the napkin main body, a similar leak-proof portion is formed at the rear end (not shown). . Therefore, even if the liquid flows on the topsheet 2 in the forward or backward direction, it is trapped by the leak preventer 9 and further outflow is prevented. As a result, leakage of the liquid from the front-rear direction of the napkin 1 and contamination of clothes caused by the leakage are effectively prevented.

The front and rear flaps 7, 8 have the same shape as the outer shape of the napkin main body having the wing portions 5, 5 when they cover the top sheet 2. The free ends 7a, 8a of the front and rear flaps 7, 8 are
Are in contact with each other in a state of covering the topsheet 2, and there is no overlapping portion between them. Both free ends 7
The positions where a and 8a come into contact substantially correspond to positions where the wings 5 and 5 are bisected in the longitudinal direction of the napkin 1. Therefore, the front and rear flaps 7, 8 have fixed ends 7b,
From the first predetermined position to the free ends 7a, 8a, the width is substantially the same from the first predetermined position to the free ends 7a, 8a.
The width gradually increases toward a second predetermined position toward 8a, and the width becomes substantially the same again from the second predetermined position toward the free ends 7a and 8a.

As shown in FIG. 3, the front flap 7 has a liquid permeable sheet 10 disposed opposite to the skin contact surface of the napkin 1, that is, the surface sheet 2, and a front flap 7 disposed on the liquid permeable sheet 10. Liquid-impermeable sheet 1 formed on the outer surface of napkin 1
1 (see FIG. 1), and a liquid-retentive absorbing layer 12 interposed between the sheets 10 and 11. Both sheets 10,
Numeral 11 extends outward from the front and rear edges and both right and left edges of the absorbent layer 12, and the extended sheets 10, 11 are adhered. Then, the liquid permeable sheet 10 and the top sheet 2 of the napkin main body are joined by predetermined means. Although not shown, the rear flap 8 has the same configuration. Since the front and rear flaps 7 and 8 have such a configuration, the front and rear flaps 7 and 8 are provided with a function of absorbing and holding a liquid. Therefore, when the napkin 1 is mounted, the front and rear flaps 7 and 8 are folded back to the front and rear sides of the napkin 1, and the liquid-permeable sheet 10 of the front and rear flaps 7 and 8 faces the wearer's body. The front and rear flaps 7 and 8 can also contribute to absorption and retention of the liquid.
As a result, the entire length of the napkin 1 is substantially extended, and the liquid absorption / retention area of the napkin 1 becomes nearly twice as large as the liquid absorption / retention area of the napkin body, and the liquid absorption / retention capacity increases. Thus, the napkin 1 of the present embodiment is particularly suitable as a napkin for night use (while sleeping), which needs to absorb and hold a large amount of liquid.

Liquid permeable sheet 10, liquid impermeable sheet 1
The same material as the top sheet 2, the back sheet 3 and the absorber 4 in the napkin main body can be used as 1 and the absorbent layer 12.

As shown in FIG. 1, the front and rear flaps 7, 8
Has adhesive portions 13 on the upper surface thereof, that is, on the liquid impermeable sheet 11, to the shorts worn. Both adhesive portions 13 and 13 are covered with a single release sheet 14, and the adhesive portion 13 is protected until the napkin 1 is used.

As shown in FIG. 2, the napkin 1 of this embodiment has a longitudinal center portion curved toward the back sheet 3 and the adhesive portion 6 of the back sheet 3 abuts on the crotch portion of the shorts worn. Then, the wings 5 and 5 are folded toward the outer surface of the crotch portion of the shorts to be worn, and the adhesive portion 5 is formed.
a, 5a are fixed to the outer surface, and the front and rear flaps 7, 8 are folded back to the front and rear sides of the napkin 1, and then the adhesive portions 13, 13 of the flaps 7, 8 are fixed to the inner surface of the shorts to be worn. By doing so, it is attached to the wearing shorts. As described above, the napkin 1 is attached to the shorts to be worn by the lower surface of the napkin body, the wing portions 5, 5 and the front and rear flaps 7, 8, so that the napkin 1 is not only distorted or displaced in the left-right direction but also in the front-rear direction. Distortion and displacement are effectively prevented. As a result, even when the wearer moves violently, the liquid leakage and the contamination of clothes caused by the liquid leakage are effectively prevented.

In addition, when the bonding portions (so-called end seal portions) at the front and rear ends of the napkin body are formed by heat sealing, the end seal portions are usually hardened by heating. When such a napkin is worn, the end seal portion may directly touch the wearer's skin and give an uncomfortable feeling. However, in the napkin 1 of the present embodiment, the end seal portion is covered by the front and rear flaps 7 and 8 and is not exposed on the skin contact surface side. Is improved. That is, the napkin 1 of the present embodiment is particularly effective when the end seal portion is hard.

The present invention is not limited to the above embodiment. For example, in the embodiment, the entire surface of the skin contacting surface of the napkin is covered by the front and rear flaps, but the entire surface may not be covered. Further, the free ends 7a, 8a of the front and rear flaps 7, 8 may have portions overlapping each other.

In the above embodiment, the front and rear flaps are composed of the liquid-permeable sheet, the liquid-impermeable sheet and the absorbing layer. A flap may be configured,
Alternatively, it may be composed of a single sheet (for example, a liquid impermeable sheet or a sheet having elasticity). Further, the configuration of the front and rear flaps may be different from each other.

In the above-described embodiment, the pocket-shaped leak-proof portions are formed at both the front and rear ends. Instead, only one of the front and rear ends is effective, for example, for preventing liquid leakage at bedtime. It may be formed only at the rear end.

Although the napkin 1 of the above embodiment has the wings 5 and 5, it may be configured without the wing according to the use of the napkin.

Although the above embodiment relates to a sanitary napkin as an example of an absorbent article, the present invention can also be applied to an incontinence pad, a vagina sheet and the like.

[0023]

According to the absorbent article of the present invention, fixation to shorts is assured, and displacement and displacement not only in the left-right direction but also in the front-rear direction are effectively prevented, and dirt on clothes is prevented.

According to the absorbent article of the present invention, when the end seal portions at the front and rear ends of the absorbent article are hardened by heat sealing, the end seal portions are covered with the front and rear flaps and Since it is not exposed on the contact surface side, the feeling of wearing is improved.

Further, according to the absorbent article of the present invention, by forming the pocket-shaped leak-proof portions at the front and rear ends, liquid leakage from the front-rear direction can be more effectively prevented.

Further, according to the absorbent article of the present invention, by covering the entire surface of the skin contact surface with the front and rear flaps, it is possible to keep the skin clean immediately before wearing the skin contact surface. In addition, when the entire surface of the skin contact surface is covered with the front and rear flaps as described above, it is not necessary to separately package the packaging material.

Further, by providing the liquid absorbing and retaining function to the front and rear flaps, the overall length of the absorbent article is substantially extended, and the liquid absorbing and retaining effect is further increased.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state before use of a sanitary napkin as one embodiment of an absorbent article of the present invention.

FIG. 2 is a perspective view showing a state in which front and rear flaps are folded in order to attach the sanitary napkin shown in FIG. 1 to shorts.

FIG. 3 is a sectional view taken along line AA in FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sanitary napkin 2 Top sheet 3 Back sheet 4 Absorber 7 Front flap 8 Rear flap 9 Leak preventer 10 Liquid permeable sheet 11 Liquid impermeable sheet 12 Absorption layer

Claims (5)

[Claims] 1. A liquid-permeable skin-contacting surface, a liquid-impermeable non-skin-contacting surface, and a liquid-retentive absorbing portion interposed between the skin-contacting surface and the non-skin-contacting surface. Having a pair of front and rear flaps covering the skin contact surface side of the absorbent article, wherein each of the front and rear flaps has a top surface with shorts. An adhesive portion, and the front and rear flaps each have a free end and a fixed end, and both fixed ends are respectively fixed to the skin contact surface side at longitudinal front and rear ends of the absorbent article, and An absorbent article wherein the front and rear flaps are folded back to the front and rear sides of the absorbent article when the absorbent article is used. 2. A pocket-shaped leak-proof portion is formed between the front and rear flaps and the skin contact surface.
The absorbent article according to the above. 3. A liquid permeable sheet in which the front and rear flaps are respectively disposed facing the skin contact surface side, and a liquid which is disposed on the liquid permeable sheet and forms one outer surface of the absorbent article. The absorbent article according to claim 1, further comprising an impermeable sheet. 4. The absorbent article according to claim 3, wherein each of the front and rear flaps further has a liquid-retentive absorbing layer interposed between the liquid-permeable sheet and the liquid-impermeable sheet. 5. The absorbent sheet according to claim 3, wherein each of the front and rear flaps has the adhesive portion on the liquid impermeable sheet, and both adhesive portions are covered with one release sheet. Goods.