JP2580572Y2 - Disposable diapers having openings in the top sheet - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION This invention relates to a disposable diaper suitable for absorbing and retaining stool.

[0002]

2. Description of the Related Art Conventionally, in order to solve the problem that excreted stool spreads between the wearer's skin and the first upper sheet of the diaper, causing discomfort, a second opening having an opening in the buttocks is known.
A diaper having a structure in which an upper sheet is provided on a first upper sheet is known. In this structure, the stool is received in the opening and guided to the gap between the first top sheet and the second top sheet, and the stool is isolated from the skin by the second top sheet, thereby achieving the intended purpose. .

[0003]

In order to receive feces through an opening, it is desirable that the position of the opening matches the position of the anus, and that the periphery of the opening is in close contact with the skin. This is because the stool does not leak laterally and spread between the skin and the sheet if it is in close contact. However, in general, it is difficult to adhere the second upper surface sheet made of a nonwoven fabric or a plastic sheet in accordance with the undulation of the buttocks, and a gap is easily generated between the second upper surface sheet and the skin. If the diaper slips down while wearing, the gap increases, and the amount of leakage increases, increasing discomfort. When using the second upper surface sheet disposed an elastic member in the opening peripheral edge, a predetermined elastic member
When it comes into contact with the skin of the site , the adhesion improves, but
Sea urchin is difficult in general be abutting.

[0004] This invention has an object to solve the problem that stool easily leaks from a gap with the skin by providing an elastic rib-shaped skin contact portion at the periphery of the opening to facilitate the close contact with the skin. .

[0005]

SUMMARY OF THE INVENTION The present invention provides a liquid permeable
(1) The liquid absorbent core is placed between the upper sheet and the liquid-impermeable lower sheet.
A liquid diffusion resistance on the upper surface of the first upper sheet.
Of the second upper sheet of the same nature
To the central area of the second top sheet.
The second upper surface sheet is formed by forming a long opening in the length direction.
Near the outermost edge of the
A first elastic member and a longitudinal edge on each side edge of the opening.
Disposable diaper on which each contracting second elastic member is arranged
Regarding the two improvements, the features are as follows:
And the second configuration.

[0006] The first feature of the invention is that both sides of the opening are provided.
Placing each flap on the upper surface of the second upper sheet,
Join the inner edge of each flap to each side edge of the opening
The outer edge of each flap is in front of each side edge of the opening.
The upper surface of the second upper sheet between each first elastic member
Joined and stretched on the inner edge of each flap in its length direction
And each of the second elastic members
On the inner surface approximately halfway between the inner and outer edges of the
A third elastic member that contracts in the
Each extension on the side of the opening should be in contact with the groin area.
The point is that the elastic skin contact portion is formed.

[0007] A second feature of the invention is that the second upper sheet is
An I-shaped notch is formed in the central area, and the cut
Flaps on both sides are folded outward to open the opening
Forming an outer edge of each flap on each side of the opening.
The second top sheet between an edge and each of the first elastic members;
Joined to the top surface, the length of the inner edge of each said flap
The second elastic member that expands and contracts to
Its length on the inner surface approximately halfway between the inner and outer edges of the flap
The third elastic members that contract in the vertical direction are arranged, and
To contact the groin near each side of the opening
This is in that each elastic skin contact portion is formed.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The diaper according to the present invention will be described below with reference to the illustrated embodiment .

FIGS. 1 and 2 are a plan view of a diaper 1 and FIG.
It is the II-II line partial sectional view. The diaper 1 is located on a liquid-permeable first upper sheet 2, a liquid-impermeable lower sheet 3, a liquid-absorbent core 4 interposed between the two sheets 2, 3, and an upper surface of the first upper sheet 2. It is composed of a liquid diffusion resistant second top sheet 5. Here, the liquid diffusion resistance means that the diffusion of the bodily fluid on the second top sheet 5 is suppressed to a required level by the second top sheet 5 having an appropriate water repellency. The second top sheet 5 has a peripheral edge joined to the first top sheet 2,
The central region, the open mouth 8 of the long rectangular in the longitudinal direction by cutting the sheet is provided. The left and right side edges 9 around the legs of the diaper 1 an elastic member 13 provided at the end edge 11 of the elastic member 10, rear body side, imparting stretchability to the waist and around the legs
I have. One end of a tape fastener 14 is fixed to both side edges of the rear body.

[0010] Open mouth 8 of the second topsheet 5, the side edge 15
And a flap 20 formed of a strip-shaped sheet for skin application along the side edge 15. This file
Inner edge 21 of the wrap 20, open mouth with adhesive 17A
Of Yes joined to the side edges 15 and lateral edges 22, side edges 1
5 and the side edge 9 of the second upper sheet 5
Is bonded to the upper surface of the substrate with an adhesive 17B. Flap 20
The middle 23 between the inner and outer edges 21 and 22 is not joined,
When floating from the second top sheet 5, a hollow portion 24 is formed in the cross section in the width direction (see FIG. 2). On the inner surface side of the flap 20, thread rubbers 26 and 28 are provided.
5 extending between both ends and adjacent to the side edge 15 a second
The top sheet 5 or the sheet 5 and the flap 20 are intermittently adhered to each other with an adhesive 27. In addition, thread rubber 28
Decompresses in parallel with rubber thread 26, Aru preferably its tensile stress stronger than that of the rubber thread 26, and intermittently bonded by adhesive 29 to the intermediate <br/> portion 23 the inner surface of the flap 20.
Both ends 30 , 31 of the rubber thread 28 are adhered to the vicinity of the edge of the flap 20, but as shown by a chain line in FIG.
0 ′, 31 ′ may extend from the edge of the flap 20 and may be bonded and fixed to the second upper surface sheet 5 at a position closer to the edges 11, 12 of the diaper 1 as compared to both ends of the thread rubber 26. The flap 20 to which the thread rubbers 26 and 28 are attached is the skin contact portion 20A. This skin contact portion 20A is for a leg (thigh).
It is located at a distance inside the elastic member 10 and its position
As is obvious to those skilled in the art from the relation, near the groin of the wearer
Is in contact with

FIG. 3 is a perspective view of the diaper 1 in a state of being curved in the longitudinal direction. If the diaper 1 is further curved, it will be in a state when worn. When the diaper 1 is curved, rubber thread 26, thereby forming a stretchable gathers 35 the open mouth portion side edge 15 and the vicinity thereof shrinks together with the second upper surface sheet 5, the second topsheet 5 first topsheet Floating from 2 to form a gap between both sheets to accommodate stool
I do . The thread rubber 28 contracts and expands with the flap 20.
The flap 20 is lifted from the second upper sheet 5 while forming the shrinkable gathers 36. In particular, both ends 30 and 31 extend from the flap 20 and are positioned higher than both ends of the thread rubber 26 as shown in the figure. And flap 2
The 0 non-joined portion 23 can be raised particularly high from the second upper surface sheet 5. This lift raises the hula
-Up 20 is formed along the skin-contacting portion 20A to the width direction is Yamagata <br/> open mouth side edge 15.

FIG. 4 shows a flap 2 having a mode different from that of FIG.
FIG. 2 is a partial cross-sectional view of the diaper 1 showing 0 and a skin contact portion 20A. Flap 20 in this figure, the shape folded outward part of the second upper surface sheet 5 in the open mouth portion side edge 15
Has been established. Such a flap 20 corresponds to the second flap shown in FIG.
In topsheet 5, without resecting a portion corresponding to the open mouth 8, I-shaped score line as indicated by a chain line,
That is, the second upper surface sheet 5 having the longitudinal cut lines 41 and the width cut lines 42, 43 at both ends is prepared, and a pair of U-shaped flaps composed of the cut lines 41, 42, 43 are formed. After forming these flaps, these flaps are turned outward, and the free edge generated by the cut line 41 is joined to the second upper sheet 5 as the outer edge 22. A thread rubber 26 is attached in an extended state to the inner surface of the inner edge 15 which is a return line of these flaps, and a thread rubber 28 is attached in an extended state to the inner surface between the inner edge 15 and the outer edge 22. These flaps form the skin contact portion 20A.

In the diaper 1, the first upper sheet 2 and the lower sheet 3 are tightly joined at their outer periphery, and the second upper sheet 5 is tightly joined at the outer periphery to the first upper sheet 2. It is. For these bonding and other bonding in this embodiment, an adhesive such as a hot melt adhesive or a technique of heat sealing a plastic sheet can be used. A nonwoven fabric or a perforated plastic sheet can be used for the first upper sheet 2, a plastic sheet for the lower sheet 3, and a nonwoven fabric having a required water repellency can be used for the second upper sheet 5. A mixture of ground pulp and a superabsorbent polymer is formed into a mat-like or pad-like material for the liquid-absorbent core 4.
It was what can be used.

[0014]

[Effect of the invention] The diaper constructed as described above can be worn
In state, when longitudinally curved, <br/> open mouth rim of the second top sheet is lifted from the first topsheet, yield stool
An acceptable gap is formed, and a skin patch having elastic gathers on side edges thereof is formed. Since the side portion of the skin contact portion is inclined in a mountain shape, it comes into contact with the vicinity of the groin portion to serve as a hopper, thereby facilitating stool reception. The skin contact portion prevents the apex of the chevron from being closely pressed against the vicinity of the groin portion , thereby preventing a gap from being formed between the skin and the skin. Even when the diaper is slightly slipped, the effect can be obtained. Since this rib extends in the diaper longitudinal direction, the rib in the diaper width direction
It is effective to prevent stool from flowing out.

[0015] In particular, the skin contact portion abutting near the groin portion
Has the second and third elastic members.
The lifting and the contact state are securely held, and the leg
The first elastic member is the part of the diaper for any reason
Does not closely function around gasket function
In some cases, it can also serve its complement
You. It should be noted that the degree of the tensile stress of the third elastic member is
Therefore, unlike conventional elastic members for diapers,
Need not increase the tensile stress of the first elastic member for use
There is also.

[Brief description of the drawings]

FIG. 1 is a plan view of a diaper according to the present invention.

FIG. 2 is a partial sectional view taken along line II-II in FIG.

FIG. 3 is a perspective view of a diaper in a curved state.

FIG. 4 is a partial cross-sectional view of a diaper showing a skin contact portion in a mode different from that of FIG. 2;

[Explanation of symbols]

1 diaper 2 first topsheet 3 lower sheet 4 liquid-absorbent core 5 second topsheet 8 open mouth 9 side edge 10 first elastic member 11 edge 15 to open the mouth edge 20 flap side edge 16 opening in the 20A Skin contact part 21 Inner edge 22 Outer edge 23 Non-joined part 26 Second elastic member 28 Third elastic member 41, 42, 43 Cut line

Claims (2)

(57) [Scope of request for utility model registration] 1. A liquid-absorbing core is interposed between a liquid-permeable first upper sheet and a liquid-impermeable lower sheet, and a liquid-diffusion-resistant second upper sheet is provided on the upper surface of the first upper sheet. the superimposed joining its periphery to the top surface, to form a long opening its lengthwise central region of the second upper surface sheet, wherein
Near the outermost edge of the second top sheet in the length direction
In a disposable diaper in which each first elastic member for a leg to be set and each second elastic member that contracts in the length direction on each side edge of the opening, the second elastic member on both sides of the opening is provided. On top of top sheet
Place each flap and open the inner edge of each flap
Joined to each side edge of the mouth, and the outer edge of each flap is
The second portion between each side edge of the opening and each of the first elastic members.
Joined to the top surface of the top sheet, and attached to the inner edge of each flap
The respective second elastic members that expand and contract in the length direction are arranged.
And approximately halfway between the inner and outer edges of each flap
Each third elastic member that contracts in its length direction is arranged on the inner surface of
In this way, each side area of the opening is near the groin.
Make sure that each elastic skin contact for contact
The diaper shall be the feature. (2)Liquid-permeable first top sheet and liquid-impermeable bottom surface
A liquid absorbing core is interposed between the first upper surface sheet and the sheet.
Laminate a liquid diffusion-resistant second top sheet on the top of the sheet
And the peripheral portion is joined to the upper surface, and the second upper surface
A long opening in the length direction in the central area of the
Near the outermost edge of the second top sheet in the length direction
The first elastic members for the legs to be
And each second elastic member that contracts in the length direction
In disposable diapers, Forming an I-shaped notch in the central area of the second top sheet
And fold the flaps on both sides created by the cut outward.
Forming the opening by turning over the outside of each flap
An edge between each side edge of the opening and each of the first elastic members
Joined to the upper surface of the second upper sheet, and
The second edge that expands and contracts in its longitudinal direction on the inner edge 2 Elastic member
Between the inner and outer edges of each flap.
Each third elastic member that contracts in the length direction on the inner surface at the center
So that each side of said opening has a groin
Each elastic skin contact part for abutting on the vicinity is formed
The diaper as described above.