JP2586287Y2 - Disposable diapers - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION This invention relates to disposable diapers.

[0002]

2. Description of the Related Art Conventionally, some disposable diapers are provided with recessed portions around the legs on the left and right sides of the crotch to prevent large wrinkles around the crotch and around the legs when worn. In such a diaper, an elastic member is adhered under the extension so as to extend along the periphery of the concave notch portion or to extend linearly in the front and rear body direction, and adhere to the base of the wearer's leg or in the vicinity thereof It is often made possible to prevent leakage of bodily fluids.

[0003]

In the diaper, excretion of bodily fluids is concentrated in the crotch, and bodily fluids are likely to leak around the legs. In the conventional diaper described above, leakage can be prevented by making the diaper tightly adhered around the leg by an elastic member, but if the diaper is made extremely tight, blood circulation will be impeded. On the other hand, if the adhesion is moderately strong, the elastic member cannot fully follow the intense body movement of the wearer, and a gap may be formed around the legs, for example, in the groin, causing body fluid leakage.

Accordingly, the present invention has an object to prevent body fluid leakage in the case of the above-mentioned prior art by providing a pad for covering around the leg around the periphery of the recess around the leg.

[0005]

Means for solving the above problems The present invention is as follows to solve the above problems.

[0006] Ashimawari this invention is, diaper body includes a liquid-pervious topsheet, a liquid-impermeable back sheet consists of a liquid-absorbent first core disposed between these two sheets, the crotch portion on both sides A disposable diaper having a concave notch for use and an elastic member for bringing the concave notch into close contact with the crotch is assumed.

According to the invention, on the premise, the main body is provided with a pad for covering around the leg along the periphery of the concave portion, and the pad comprises a liquid-permeable top sheet and a liquid-impermeable back sheet. separately from the first core disposed between the
And gradually narrows from the center of the pad to both ends in the longitudinal direction.
A liquid-absorbent second core having a substantially crescent shape ,
Ri Do and a leg-surrounding direction of the elastic member provided on the free edge opposite the concave portion periphery, the elastic between the first and second cores
Having a flap member, wherein the flap member is
A first flap located on the first core side and facing inward;
The second flap is located on the second core side and faces outward.
It is characterized by that.

In a preferred embodiment of the invention,
The pad is configured separately from the main body, and the main body is
And the back flap of the flap
Is provided by the elastic yarn of the flap.
You.

[0009]

In the disposable diaper constructed as described above, the absorbent core of the diaper main body and the elastic member absorb body fluid in the crotch part and prevent leakage. When bodily fluid flows from the main body in the direction around the legs, the bodily fluid is absorbed by the liquid-absorbing core of the pad, and the bodily fluid leakage of the diaper is reliably prevented.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the disposable diaper according to the present invention will be described below with reference to the accompanying drawings.

FIGS. 1 and 2 are a plan view of the disposable diaper 1 and a sectional view taken along the line XX. The diaper 1 includes a main body 2 and a pad 3 for covering around the leg.

The main body 2 comprises a liquid-permeable top sheet 4, a liquid-impermeable back sheet 5, and a liquid-absorbing core 6 interposed between the sheets 4,5. Further, the main body 2 has concave recesses 7 on both sides of the crotch around the legs, a flap member 8 extending between the front and rear bodies on the topsheet 4, and a front body on both left and right sides of the rear body. It has a tape fastener 9 and an elastic member 10 attached to the edge of the back body in the waist direction. The liquid absorbent core 6 is an hourglass type,
In the crotch part, it is along the periphery of the concave notch 7. On the outer periphery of the liquid absorbing core 6, the front and back sheets 4 and 5 are coated with the hot melt adhesive 1
3 are joined. Flap member 8 is made of a strip-shaped non-woven sheet, Yes and joined by a hot melt adhesive 14 to the required site topsheet 4, in the boundary joining the site, the facing to the diaper inward located in the core 6 side a first flap 15, the facing outwardly located below the core 23 side 2
And a flap 16. The first flap 15 has a first rubber-like elastic thread 18 at its free end, and the second flap 16
Has a plurality of second rubber-like elastic threads 19 arranged in parallel.
Preferably, the second flap 16 is located outside the side edge of the liquid-absorbent core 6 in the crotch part. Further, both ends of the second flap 16 may be adhered to the top sheet 4 on the absorbent core 6.

The leg surrounding covering pad 3 has a so-called crescent shape in which the width gradually becomes narrower from the center to the longitudinal end, and a liquid-permeable top sheet 21, a liquid-impermeable back sheet 22, A liquid absorbing core 23 interposed between the sheets,
On the inside, the back sheet 22 is joined to the back sheet 5 of the main body by a hot-melt adhesive 29 along the periphery of the recess 7. On the outside, a plurality of sheets are placed between the front and back sheets 21 and 22.
The third rubber-like elastic thread 24 is stuck. Front and back sheet 2
Reference numerals 1 and 22 are joined by a hot melt adhesive 26 on the outer periphery of the liquid absorbent core 23. The maximum width of the central portion of the pad 3 is preferably 30 to 100 mm.

FIG. 3 is a perspective view showing a state in which the diaper 1 is worn. The back body is stacked on the front body at the waist side, and the tape fastener 9 is detachably attached to the reinforcing sheet piece 27 attached to the back body sheet 5 of the front body in the waist direction. The pad 3 covers the circumference of the leg and functions as if it were a hose of a known pants. The first, second,
The three rubbery elastic threads 18, 19, 24 are all attached to the diaper 1 in an extended state.

In the diaper 1 configured as described above, the bodily fluid excreted in the crotch part is absorbed by the absorbent core 6, and the bodily fluid flowing in the direction of the circumference of the leg is formed by the first flap 15 of the first rubber-like elastic thread 18. The pocket portion 30 (see FIG. 2) which stands up by the shrinking action and is formed between itself and the topsheet 4 is received. The second flap 16 includes a plurality of second rubber-like elastic yarns 1.
The relatively strong contraction force of 9 acts to bring the crotch part and the leg circumference of the diaper 1 into close contact with the wearer's skin, and stops the flow of bodily fluid in the direction of the leg circumference. However, even in this way, when the wearer's body moves rapidly or when the amount of bodily fluid excreted is large, a gap may be formed in a portion that should be in close contact, or the bodily fluid may be moved over the first flap and the leg may be moved over. May flow around. In particular, in the groin, it is difficult for the diaper to adhere to the diaper, and the body fluid easily flows out. However, in the diaper 1, since the pad 3 covers the leg area like a hose part of pants, and also covers the inside of the thigh more widely than the outside,
The body fluid flowing out in this way can be absorbed by this pad 3. The liquid-absorbent core 23 of the pad 3 is separate from the liquid-absorbent core 6 of the main body 2, and between the cores 23, 6 is the front and back sheets 4 and 5, and 21 and 2.
There are hot melt adhesives 13 and 26 for bonding 2
Even if the absorbent core 6 absorbs the bodily fluid, the bodily fluid is
Does not diffuse to the liquid-absorbent core 23. That is, the absorbent core 23 absorbs only the body fluid flowing out of the crotch,
When there is no outflow, there is no damp feeling around the legs.

In the diaper 1, the top sheet 4 is made of a nonwoven fabric or a perforated plastic sheet, the back sheet 5 is made of a plastic sheet such as polyethylene, and the absorbent cores 6,23.
Pulp or a mixture of crushed pulp and a superabsorbent polymer can be used.

[0017]

[Effect of the Invention] In the diaper according to the invention, a pad for covering the leg circumference is provided on the diaper body, and the diaper body and the pad are further provided .
The inner and outer double flaps between both absorbent cores
These pads and flaps are often located near the wearer's groin.
Adhere closely. Therefore, if the wearer moves violently,
Even if excrement climbs over the flap,
And the liquid content of excrement is padded
Absorbed and retained by the core of the garment and does not leak.

The absorbent core of the diaper main body and the absorbent core of the pad are separated from each other so that body fluid from the former does not diffuse to the latter. It does not unnecessarily give a moist feeling.

[Brief description of the drawings]

FIG. 1 is a plan view of a disposable diaper.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is a perspective view showing a disposable diaper worn state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disposable diaper 2 Main body 3 Covering pad 4 Top sheet 5 Back sheet 6 Liquid-absorbent core 7 Depressed part 8 Flap member15 First flap 16 2nd flap 18, 19 elastic member DESCRIPTION OF SYMBOLS 21 Top sheet 22 Back sheet 23 Absorbent core 24 Elastic member

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A61F 13/15 A61F 5/44 A61F 13/58

Claims (3)

(57) [Scope of request for utility model registration] 1. A diaper body includes a liquid-pervious topsheet, a liquid-impermeable back sheet consists of a liquid-absorbent first core disposed between these two sheets, concave for around leg crotch portion sides a missing portion, in a disposable diaper having an elastic member for adhering the concave cutout portion in the crotch, the body is provided with a leg covering pad on the outside thereof along the concave peripheral edge, said pad , from the first core disposed between the liquid-permeable topsheet and liquid-impermeable back sheet be separate,該Pa
Gradually narrowed from the center of the pad to both ends in the longitudinal direction.
A liquid-absorbent second core having a crescent shape; and a leg-direction elastic member provided on a free edge facing the peripheral edge of the recess.
And an elastic flap between the first and second cores.
Material is positioned, and the flap member is positioned on the first core side.
First flap facing inward and located on the second core side
And a second flap facing outward . 2. The pad is formed separately from the main body.
Is, diaper according to claim 1 which are bonded in the backsheet of the main body and to each other. 3. The elasticity of the flap is such that the flap has
The diaper according to claim 1, wherein the diaper is provided by an elastic yarn .