JP3115969B2 - Disposable absorbent pad - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called disposable absorbent pad which is discarded after a single use, particularly to an incontinence pad, a sanitary pad and the like.

[0002]

2. Description of the Related Art An example of the prior art, which is partially similar to the present invention, obtained by the present inventors, is an incontinence article that elastically surrounds a wearer's waist and legs. Tightened waterproof outer cover (not disposable)
And a structure for supporting a separate absorbent pad on the inside thereof (U.S. Pat.
52, 753 specification) or a supporter (not disposable) by connecting an elastic waist band and a strap to the band so as not to entirely surround the wearer's leg surroundings. There is one that supports an absorbent pad (JP-A-57-143502).

[0003] These techniques include a strap connected to a stretchable waistband and serving to directly or indirectly support the absorbent pad, such that the body portion or supporter is adapted to surround the wearer's leg. Is similar to the present invention in that it has a form that does not surround the whole.

As an incontinence article, especially for disposable use, an absorbent core is interposed between a liquid-permeable top sheet and a liquid-impermeable back sheet to expand and contract around the waist and legs. There are also many known disposable incontinence articles equipped with a sex member, and disposable incontinence articles equipped with a separate absorbent pad inside the article.

[0005]

SUMMARY OF THE INVENTION U.S. Pat.
The strap of the technique described in US Pat.
It is thought that this is provided to ensure the stability of mounting the main body to the body. On the other hand, JP-A-57-14
The strap of the technology described in Japanese Patent Publication No. 3502 merely has a function of constituting a supporter.

The technique described in US Pat. No. 3,452,753 requires a lot of time and effort to manufacture because the strap is made of a material separate from the main body. In the technique described in Japanese Patent Application Laid-Open No. 57-143502, although the strap forms a part of the supporter, it is necessary to abut an absorptive pad formed separately from the supporter, and it takes considerable time and effort in use. Lack of hanging stability with respect to the absorbent pad causes a problem in preventing leakage of excrement. Furthermore, since none of these techniques has a function of elastically lifting the main body portion or the supporter to the wearer's crotch, it is difficult for the pad portion to always sufficiently adhere to the wearer's crotch. There is a problem in preventing leakage of excrement.

A main object of the present invention is to form a pad body preferably having a suspending strap function from both ends of the pad body, through which the pad body is elastically hung on an elastic waistband. The object is to eliminate the problem.

[0008]

In order to solve the above problems, an absorbent pad according to the present invention has a liquid-absorbent core interposed between a liquid-permeable top sheet and a liquid-impermeable back sheet. the top and back sheets are respectively extended out joined together outward from the longitudinal ends and the widthwise opposite side edges of said core to form end flaps and side flaps, the elastic cloth at the tip portion of each of said end Dofurappu
Disposable absorbent pad with band attached
In each of the end flaps, a slit is provided that divides the width thereof into two and extends in the length direction. At least the outer region and the crotch region of each of the side flaps are provided with elastic members that expand and contract in the length direction. Attachment, the pad body by folding back at least a part of each of the side flaps inward under the lengthwise extension of the elastic member and further folding back a part of the folded part outward to fix both ends in the longitudinal direction. Is a basic mode.

Another basic aspect of the absorbent pad according to the present invention does not include the outwardly folded portion of the side flap.

In the above two basic embodiments, preferably,
By using a material having elasticity at least in the length direction of the pad body as the top and back sheets, each of the end flaps is provided with elasticity in its length direction.

[0011]

Operation and Effect The pad according to the present invention can be used alone, or can be used together with a separately prepared exterior cover as needed. In this use, when the annular elastic waistband is positioned at a predetermined portion of the waist around the wearer, a pair of end flaps that perform a suspending function adjacent to each other through a slit are expanded in a substantially V-shape to form a pad. When the main body is hung stably and these end flaps are given elasticity, the end flaps are contracted and pulled up to the wearer's crotch side to abut the crotch, and the outside of both side flaps The region is elastically adhered to the wearer's crotch, particularly the inside of the thigh near the base by the elastic member. At this time, if it is desired to correct the contact portion or the contact state with the inseam of the wearer, once the pad body is once grasped by hand, pulled down against the tension of the end flap, and then released, the pad body is released. The contraction of the end flap automatically abuts the wearer's inseam. Of course, such an operation may be repeated as many times as necessary.

[0012] The pad body attached to the inseam of the wearer is
Both side flaps rise up to the wearer's skin side by the contraction of these elastic members, and as a whole, the cross section is formed in a boat shape having a substantially U-shaped or inverted Ω-shaped and a vertical cross section having a substantially arcuate shape, and leaks excrement to the outside. Completely absorbed without being absorbed by the core.

[0013]

1 and 2, a pad according to the present invention comprises a pad body 1 and an elastic waistband 2 formed separately therefrom.

The pad body 1 has a relatively small and elongated liquid-absorbent core 5 interposed between a liquid-permeable topsheet 3 and a liquid-impermeable backsheet 4, and the top and the backsheets 3 and 4 are attached to the core. End flaps 6 and side flaps 7 are formed by extending outward from both ends in the length direction and both side edges in the width direction and joining them by means of ultrasonic welding, heat welding, an adhesive or the like. Although not shown, when a slippery film such as a plastic sheet is used as the back sheet 4, a nonwoven fabric may be laminated on the outer surface thereof.

A slit 8 is provided at the center in the width direction of each of the end flaps 6 to extend to its tip. It is preferable that the end flap 6 has a moderate elasticity.
In order to do so, the top and back sheets 3 and 4 should be at least stretchable in the length direction of the pad body 1 or, as described later, the elastic members 9 and 1
0 may also be positioned on the end flap 6 (see FIG. 5).

[0016] The side flaps 7 are located approximately in the widthwise intermediate portion and in the vicinity of the outer edge thereof, that is, at least the region between the top of the outer region and the backsheets 3 and 4 where the crotch of the wearer is located. The elastic members 9 and 10 which expand and contract in the length direction are attached with an adhesive while extending in the length direction. The elastic member 9 is composed of a single piece having a relatively strong extensional stress, and the elastic member 10 is composed of a plurality of pieces having a relatively small extensional stress and being arranged in parallel. The elastic members 9 and 10 may extend near the end of the end flap 6. Each of the side flaps 7 is folded inward along the outer vicinity 11 of the core 5 and a part of the inwardly folded portion is further outwardly folded on a line along the elastic member 9, and the length of the folded portions 7 a and 7 b Both ends 7c in the direction are joined to the top sheet 3 on the core 5 by joining means such as ultrasonic welding, heat welding, and an adhesive.

The pad body 1 excluding the end flap 6
In the case of incontinence, a size that can appropriately cover the front, rear, left and right areas around the urinary tract, in terms of image,
A size that is approximately two to three times larger than a menstrual napkin is sufficient, but it may be formed to have a size that can cover the peripheral area around the anus as needed.

In the pad body 1 thus constructed, both side flaps 7 rise up to the wearer's skin side mainly due to the contraction of the elastic member 9, and are formed in a boat shape having a substantially Ω-shaped cross section and a generally arcuate vertical cross section as a whole. Is done. However, when the pad body 1 is pulled in its length direction, the folded portions 7a and 7b of the side flaps 7 completely fall inward and become flat. Therefore, the pad body 1
Can be folded in its lengthwise direction in its flattened state and compactly packaged.

The waistband 2 is constructed by attaching a plurality of parallel elastic members 12 in the length direction between two elongated sheets 2a and 2b with an adhesive while extending in the length direction. Thus, the pad body 1 has an extensibility considerably better than the extensibility of the end flap 6 of the pad body 1. Waistband 2 is made of other materials,
For example, a known elastic tape obtained by folding an elastic thread into a cloth may be used. When the waistband 2 is worn around the waist of the wearer, the waistband 2 has an extension stress that does not shift down due to the load of the pad body 1 absorbing the excrement and the extension stress of the end flap 6. Well-known engaging means 13a and 13b, for example, (trademark "Velcro"), which engage with each other, are attached to the inner and outer surfaces of the distal end portion of the waist band 2 facing each other. As will be apparent to those skilled in the art, one side of the waistband 2 is connected to one Velcro fastener 13a.
When it is made of a fiber that can be engaged with the projection group of the above, the other Velcro fastener 13b is not required. Further, other engaging means, for example, a known tape fastener coated with a pressure-sensitive adhesive may be used. Further, as shown in FIG. 3, the waist band 2 may be connected at its both ends in a non-detachable manner, or may be formed endlessly from the time of manufacture (not shown). Good.

When the pad body 1 is worn on the crotch of the wearer, the engagement means 13a and 13b of the waist band 2 are provided on the inner surface of an appropriate portion of the waist band 2 located at a position off the center of the abdomen of the wearer. The distal end portions of the end flaps 6 of the pad body 1 are connected by joining means such as ultrasonic welding, heat welding, and an adhesive.

The pad body 1 shown in FIG. 4 does not have the outwardly folded portion 7b of the side flap 7 and has an elastic member 7a corresponding to the inwardly folded portion 7a of the side flap 7. The configuration is the same as that of the pad body 1 shown in FIGS. 1 and 2 except that the pad body 14 is attached.

As the material of the pad body 1, a material similar to a disposable diaper or a sanitary napkin can be used. For example, the top sheet 3 may be a nonwoven fabric, the back sheet 4 may be a plastic film, and the core 5 may be fluff pulp mixed with superabsorbent polymer particles. Further, for example, the waist band 2 may be formed by interposing a known elastic rubber thread in a flexible sheet such as a nonwoven fabric.

In the pad body 1 shown in FIG. 5, by extending the elastic members 9 and 14 to each of the end flaps 6, the end flaps 6 are also provided with elasticity in the length direction. . This example relates to the pad body 1 shown in FIG. 4, but also in the case of the pad body 1 shown in FIG. it can.

When the absorbent pad according to the present invention is worn, the waistband 2 extends in the length direction or the enclosing direction, so that the end flap 6 is formed by the slit 8 as shown by a two-dot chain line C in FIG. And the pad body 1 is expanded in a substantially V-shape through which the pad body 1 is stably suspended. The side flaps 7 elastically adhere to the inseam of the wearer. In particular, the side flap portion along the elastic member 9 elastically adheres to the base of the thigh of the wearer, and the pad body 1 has a substantially boat shape. Therefore, the excrement is received inside the pad body 1 without spilling outward, and the received excrement is absorbed and held by the core without leaking to the outside.

When the absorbent pad according to the present invention is for incontinence, the one shown in FIG.
Are suitable for men only. In particular, the one shown in FIG. 1 has an outwardly folded portion 7b, which is relatively wide and elastically in surface contact with the inside of the wearer's thigh, which is extremely effective in preventing excretion leakage. . Furthermore, the one shown in FIG. 1 is suitable as a menstrual pad for women, and the one with an endless waistband 2 is suitable as a menstrual pad for women with physical disabilities.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing an incontinence pad according to an embodiment of the present invention in a used state.

FIG. 2 is a lateral center sectional view of a pad body.

FIG. 3 is a perspective view showing another example of a waistband.

FIG. 4 is a partially cutaway perspective view showing another example of the pad body.

FIG. 5 is a partial perspective view showing still another example of the pad body, in which an elastic member attached to a side flap of the pad body is also located at an end flap.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pad main body 2 Waist band 3 Top sheet 4 Back sheet 5 Core 6 End flap 7 Side flap 8 Slit 9,10 Elastic member 13 Engaging means

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-57-143502 (JP, A) JP-A-7-108047 (JP, A) JP-A-5-92023 (JP, A) JP-A-4- 51952 (JP, A) JP-A-3-136652 (JP, A) JP-A-1-183501 (JP, A) JP-A 63-148323 (JP, U) JP-A 50-2514 (JP, U) Japanese Utility Model Showa 61-127727 (JP, U) Japanese Utility Model Showa 63-120719 (JP, U) Japanese Utility Model Showa 38-22577 (JP, Y1) Japanese Utility Model Showa 31-99 (JP, Y1) Japanese Utility Model Showa 41-5912 (JP, Y1) J. 45-32398 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61F 5/44 A61F 13/15 A61F 13/494 A61F 13/56 A61F 13 / 72

Claims (12)

(57) [Claims] 1. A liquid-absorbent core is interposed between a liquid-permeable top sheet and a liquid-impermeable back sheet, and the top and the back sheet are respectively located outside both ends in the length direction and both side edges in the width direction of the core. extends out and joined together to form an end flap and side flaps, said Endofura
Connect an elastic waistband to each tip of the
In the disposable absorbent pad, each of the end flaps is provided with a slit that divides its width into two equal parts and extends in the length direction. A member is attached under extension, and at least a portion of each of the side flaps is folded inward while the elastic member is extended in a longitudinal direction, and a part of the folded portion is folded outward to extend both ends in the longitudinal direction of the folded portion. It said pad, characterized in that have configured the pad body by fixing the parts. 2. A method according to claim 1, wherein each of said end flaps is provided with elasticity in its longitudinal direction by using a material having elasticity in at least the longitudinal direction of said pad body as said top and back sheets. Item 2. The absorbent pad according to Item 1. 3. The absorbent pad according to claim 1, wherein the elastic member is also positioned on each of the end flaps, so that each of the end flaps is provided with elasticity in its length direction. 4. The absorbing member according to claim 1, wherein an extension stress of the elastic member located along a folding line of the outwardly folded portion of the side flap is made stronger than that of the other elastic members. Sex pad. 5. The waistband is formed from a single piece having opposite ends in a longitudinal direction thereof, and at least one of the both ends is provided with a locking portion for detachably connecting the other end. The absorbent pad according to claim 1, wherein the absorbent pad is provided. 6. The absorbent pad according to claim 1, wherein said waistband is connected endlessly. 7. A liquid-permeable top sheet and a liquid-impermeable back sheet.
And a liquid-absorbent core between
And the back sheet is placed at both ends in the length direction of the core and in the width direction.
Ends that extend outward from both side edges and join each other
Forming flaps and side flaps,The end hula
Connect an elastic waistband to each tip of the
Disposable absorbent pad  Bisect the width of each of the end flaps in the longitudinal direction
To provide a slit extending to each of the side flaps
At least the outer region and the crotch region expand and contract along its length
Attach the elastic member to be extended and extend the length of the elastic member.
Each of the side flaps under extension in the direction
Part is folded inward and both ends in the length direction are fixed.
To doByThe feature is that the pad body is configured
DoThe pad. 8. A method according to claim 8, wherein said top and back sheets are made of a material having elasticity at least in a length direction of said pad body, so that each of said end flaps has elasticity in its length direction. Item 8. An absorbent pad according to item 7. 9. The absorbent pad according to claim 7, wherein the elastic member is also positioned on each of the end flaps, so that each of the end flaps is given elasticity in its length direction. 10. The elastic member according to claim 7, wherein an extension stress of the elastic member located near the outer edge of the inwardly folded portion of the side flap is made stronger than that of the other elastic members. Absorbent pad. 11. The waistband is formed from a single piece having opposite ends in a longitudinal direction thereof, and at least one of the both ends is provided with a locking portion for detachably connecting the other end. The absorbent pad according to claim 7, which is provided. 12. The absorbent pad according to claim 7, wherein said waistband is connected endlessly.