JPH0975385A - Disposable diaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a liquid absorptive pad, which is used together with a disposable diaper, from being slipped down at the time of wearing. SOLUTION: A pair of pockets extended back and forth on the inner surfaces of both left and right side parts of a disposable diaper 1 opening inward are formed so that the distance between their bottom parts is large in a front side area 6 and small at the required section of a inside leg area 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable diaper, and more particularly to a diaper suitable for use together with an auxiliary pad for urine absorption.

[0002]

2. Description of the Related Art Conventionally, disposable absorbent pads for absorbing urine excreted by bedridden elderly people, sick people, incontinence patients and the like have been publicly known or well known. As an example, the actual Kaihei 2-6
No. 024, the liquid permeable top sheet 102 as shown in FIG. 8, a back sheet 103, and an absorbent core 104 interposed between the two sheets are used.
Of rectangular pads 100 are disclosed. This kind of pad may be set on the inner surface of a disposable diaper and used with the diaper. By doing so when urination is large, urine can be treated with a relatively inexpensive absorbent pad, and the frequency of exchanging expensive diapers can be reduced. The diaper disclosed in US Pat. No. 4,704,116 is suitable for such an application. This diaper has a pair of elastic flaps made of a liquid permeable sheet on the inner surface on both the left and right sides,
This flap forms a pocket opening toward the inside of the diaper. The liquid-absorbent pad can be set on the inner surface of the diaper by inserting the right and left sides into pockets so as not to be laterally displaced.

[0003]

The known combination of the pad and the diaper cannot prevent the pad from shifting from the front side region toward the rear side region. Especially for men,
Since urination tends to be concentrated in the anterior region, the movement of the pad makes it difficult to reliably capture urine, and the diaper is soiled even when the pad is used.

Therefore, an object of the present invention is to prevent the liquid-absorbent pad used together with the disposable diaper from shifting vertically and horizontally.

[0005]

[Means for Solving the Problems] The present invention provides means for solving the above problems as follows.

In the present invention, the absorbent core is interposed between the liquid-permeable top sheet and the liquid-impermeable back sheet, and is composed of the front side region, the rear side region, and the crotch region located between the both side regions. It is premised on a disposable diaper that has a pair of pockets that extend in the longitudinal direction of the front and rear side regions on the inner surfaces of the left and right sides of the diaper body and that can open toward the inside of the body.

Under such a premise, it is a feature of the present invention that the distance between the bottoms of the pair of pockets is relatively large in the front region and relatively small in the required region of the crotch region.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings.

The diaper 1 shown in the partially cutaway plan view of FIG.
A liquid-permeable top sheet 2, a liquid-impermeable back sheet 3, and an absorbent core 4 interposed between the two sheets 2 and 3, the front and rear longitudinal directions being a front side region 6, a rear side region 7, Front and back sheets 2, 3 composed of a crotch region 8 located between both regions 6, 7.
The inner surfaces of the portions extending from the peripheral edge of the core 4 are watertightly joined to each other to form front and rear edge portions 6A and 7A and left and right leg peripheral side edge portions 8A. A pair of leakproof flaps 9 extending in the front-rear direction are provided on both left and right sides of the inner surface of the diaper 1, and tape fasteners 11 are attached to both left and right edge portions of the rear side area 7. The diaper 1 has a waist elastic member 15 along the edge of the rear end edge portion 7A and leg elastic members 16 along the left and right side edges that bend inward of the crotch region 8, and these elastic members 15, Reference numeral 16 is between the front and back sheets 2 and 3 and is joined to at least one inner surface of the sheets in an expanded state. The leak-proof flap 9 is formed by joining the front and rear end portions of the liquid-permeable sheet piece and the outer edge portion to the upper surface of the topsheet 2 in the joining areas 20A to 20D, and the inner edge portion of the stretchable elastic member. 22. What is shown by a virtual line from the front side region 6 to the crotch region 8 is the liquid absorbent pad 100 of FIG. 8.

FIG. 2 is an end view taken along line II-II of FIG.
You. The leak-proof flap 9 is a center that divides the diaper 1 into left and right parts.
Distance L from line CC ₀Has an outer edge at a distance L₂
The portion of width 20C between and is due to the hot melt adhesive H
It is bonded to the topsheet 2. Leak-proof flap 9 L ₂Yo
Inside is free end F ₂And the centerline CC of the diaper 1
Pocket P opening toward ₂Is formed. Self
Yu F ₂Is a three-sided folded edge
The elastic member 22 is provided in the sleeve 25, and the front and rear of the diaper 1 are
When bent in one direction, the elastic member 22 contracts and the pocket P ₂
Has a large opening. This elastic member 22 is at least
The front and rear ends of the
You.

FIG. 3 is an end view taken along line III-III of FIG.
is there. The leakproof flap 9 has a distance L from the center line CC.₀When
L_ThreeThe portion of width 20B between and is joined to the topsheet 2,
Free end F _ThreeHas a pocket P _ThreeIs formed. pocket
Department P _ThreeThen L _Three> L ₂, That is, 20B <20C
The depth of the pocket is P ₂Deeper than here
At the side edge of the liquid-absorbent pad 100, as shown by the phantom line.
108A can be inserted.

FIG. 4 is an end view taken along line IV-IV of FIG.
You. The leak-proof flap 9 is located at the front edge 6A of the diaper.
L ₀And L ₁Joined to topsheet 2 at a width of 20A between
doing. Width 20A is equivalent to the full width of the leakproof flap 9
However, the pocket is closed here. In addition,
The aspect of the leakproof flap 9 at the rear end edge portion 7A is
It is the same as that of the edge portion 6A.

Referring again to FIG. 1, with respect to the leakproof flap 9,
In the area indicated by the index R in FIG.
It has changed from 20C to 20B, which is narrower. in this way
Pocket P _ThreeIs between the index R and the front edge 6A.
Since it is a deep pocket at the bottom, there is a liquid absorbent pad 1
00 side edge 108A is inserted, side edge 108A
The front and rear ends of the contact the wide joints 20A and 20C,
Pad 100 in the front-back direction (vertical direction of the worn diaper)
It does not move. Leak-proof flaps that act in this way
9, the part indicated by the index R is scheduled to be attached
Determined in the crotch region 8 according to the length X of the pad 100
I just need. The leak-proof flap 9 in the illustrated example is located behind the index R.
The joint area is formed wide throughout, but near the index R
Only the junction area of is wide, and the remaining part is the same as the front side area 6.
It may be formed narrow.

The leak-proof flap 9 covers the surface sheet 102 of the pad 100, and is therefore preferably liquid-permeable. Thereby, the decrease in the transfer speed of body fluid to the pad 100 can be minimized.

5, 6 and 7 show another embodiment of the diaper 1.
It is drawing similar to FIGS. 2, 3, and 4 which shows an example. This one
The inner surface of the diaper 1 has a liquid-permeable surface sheet 2 and a liquid-impermeable surface.
And the side edge sheet 30. Surface sheet 2
The left and right side edges of the
Along the way, it is folded back inward to form the leak-proof flap 9,
Free end F in 5 ₂, The free end F in FIG. _ThreeIs formed,
In FIG. 7, the entire inner surface of the leakproof flap 9 contacts the topsheet 2.
I am fit. The leak-proof flap 9 of FIG.
The part of the width 20C that goes inward is hooked on the top surface of the topsheet 2.
Bonded via a tomelt adhesive H, and its free edge F ₂
The free edge F of FIG. _Threeof
It is narrower than the width. The side edge sheet 30 has a surface sheet.
Hot-melt type in the vicinity of the bending curve 32 for the sheet 2
Bonded via adhesive H, from which one side edge 35
It extends outside the side edge of the core 4 and is joined to the upper surface of the backsheet 3,
The other side edge 36 is bent outwards and is free in FIGS.
7 and the side edge sheets 30 are joined to each other in FIG.
ing. The elastic member 37 extends along the free edge of the side edge portion 36.
Because it is joined in a long state, the front and back of the diaper 1 is inward
When bent, it contracts and stands up from the inner surface of the diaper,
Stick to the surroundings. In this diaper 1, the leakproof flap 9
Liquid-permeable and the side edge sheet 30 is liquid-impermeable
Is preferred.

In the present invention, the front and back sheets 2, 3 and the side edge sheet 30 may be made of non-woven fabric or a plastic film. These sheets 2, 3, 30
Can be bonded to the core 4 as required. In addition to using a hot melt type adhesive agent, a technique of heat welding to a heat melting material can be used for such joining and joining of sheets.

[0017]

The pockets on the inner surfaces of the left and right sides of the diaper thus constructed have a deep bottom in the front region, and therefore the distance between the bottoms of the pair of pockets is large, while the bottom region of the crotch region has a large bottom. Since it is shallow, insert the left and right side edges of the absorbent pad used with this diaper into the deep part of the bottom of the pocket, and support the pad in the shallow part of the bottom of the crotch region.
It is possible to prevent the pad from sliding down toward the crotch region.

[Brief description of drawings]

FIG. 1 is a partially broken plan view of a diaper.

FIG. 2 is an end view taken along line II-II of FIG.

FIG. 3 is an end view taken along the line III-III in FIG.

FIG. 4 is an end view taken along line IV-IV of FIG. 1;

5 is an end view similar to FIG. 2 of a diaper having a different mode from FIG. 1.

6 is an end view similar to FIG.

7 is an end view similar to FIG.

FIG. 8 is a perspective view of a liquid absorbent pad.

[Explanation of symbols]

1 Disposable diaper 2 Top sheet 3 Back sheet 4 Core 6 Front side area 7 Rear side area 8 Inseam area P ₂ , P ₃ pocket

Claims (5)

[Claims] 1. A diaper body having an absorbent core interposed between a liquid-permeable top sheet and a liquid-impermeable back sheet, and comprising a front side region, a rear side region, and a crotch region located between the both side regions. A disposable diaper that has a pair of pockets that extend in the longitudinal direction of the front and rear side regions on the inner surfaces of both left and right sides, and that has a pair of pockets that can be opened toward the inside of the main body, wherein the distance between the bottom portions of the pair of pockets is The diaper is relatively large in the front region and relatively small in a required portion of the crotch region. 2. The diaper according to claim 1, wherein the distance between the bottoms of the pair of pockets is relatively large in the front region and relatively smaller behind the required portion of the crotch region. 3. The diaper according to claim 1, wherein the pocket is made of a liquid permeable sheet. 4. The diaper according to claim 1, wherein the pocket is formed by folding left and right side edges of the surface sheet inward along the lengthwise direction of the diaper. 5. The diaper according to claim 1, wherein an elastic member extending in a longitudinal direction of the diaper is attached to an opening edge portion of the pocket.