JP2000279447A - Throw-away diaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to easily replace only the absorber of a throw-away diaper by forming a pocket part having openings on at least either of a front abdomen side and a back part on the outside surface side of a crotch part, housing the replaceable absorber in this pocket part and forming slits in the crotch part. SOLUTION: The throw-away diaper 2 has a liquid permeable sheet-like body 3 on the outside surface side, a liquid permeable sheet-like body 4 on the skin surface side, the absorber 5 which is a single body, a sheet-like body 6 for the pocket, etc. Leg hole parts 2D are formed on both sides of the crotch part between the front abdomen part and the back part. The sheet-like body 6 for the pocket is joined by welding, etc., to the outside surface of the crotch part 2C of the liquid permeable sheet-like body 3 on the outside surface side, by which a non-joined region is formed as the hollow pocket part 11 having the openings 11a and 11b on both sides in the transverse direction. When the absorber 5 is contaminated by incontinence, etc., the openings 11a and 11b of the pocket part 11 are opened by outwardly pulling their upper end portions and the absorber 5 in the pocket part 11 is exchanged with the fresh absorber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to disposable pants in which an absorbent body can be easily replaced.

[0002]

2. Description of the Related Art Conventionally, as a disposable pants, leg holes are formed on both sides of a crotch portion between a front abdomen and a back portion in a developed state by a nonwoven fabric or the like, and the front abdomen and the rear are centered around the crotch. It has been proposed that the back part is overlapped and both ends of the front part and the back part are joined to each other.

[0003] The disposable pants as described above become disposable pants which also serve as a diaper for light incontinent persons if an absorbent is attached to the skin side of the crotch.

[0004]

However, in disposable pants that also serve as a diaper, the absorbent is bonded to the skin side of the crotch by welding or bonding. The disposable pants must be broken or taken off and replaced with new disposable pants, which is inconvenient when the absorber frequently becomes dirty.

[0005] The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a disposable pants in which only the absorber can be easily replaced without changing the disposable pants. It is assumed that.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, leg holes are formed on both sides of a crotch portion between an anterior abdomen and a back portion in a deployed state, and the crotch is centered. The front abdomen and the back portion are overlapped, and the disposable pants in which both ends of the front abdomen and the back portion are joined to each other, the outer surface side of the crotch portion, at least the front abdomen side and the back portion side A pocket portion having an opening is formed on one side, and the absorber that can be replaced from the opening is accommodated in the pocket portion, and the crotch portion has a hole or a crotch portion of a wearer that can directly contact the absorber. It is intended to provide a disposable pants in which a slit is formed.

[0007] According to the present invention, a pocket formed on the outer surface side of the crotch portion of the disposable pants accommodates an absorber that can be replaced through the opening of the pocket portion, and the crotch portion of the wearer has a crotch hole or hole. Since the absorber comes into direct contact with the absorber through the slit, when the absorber is contaminated by incontinence or the like, only the absorber can be easily replaced from the opening of the pocket portion. In addition, if the opening of the pocket portion is provided on both the front abdomen side and the back portion side, the absorber can be replaced from any side.

According to a second aspect of the present invention, if the pocket portion is formed by joining both sides of the liquid-impermeable sheet to the outer surface of the crotch portion, the liquid leaks from the absorber. In any event, the liquid-impermeable sheet in the pocket prevents further leakage.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1A is a front view of the disposable pants 2,
(B) is an enlarged sectional view taken along line AA of (a), and (c) is (a)
FIG. 7 is an enlarged sectional view taken along line BB of FIG. FIG. 1A is a view when each of the elastic yarns 7, 8, 9, and 10 to be described later is in an extended state. Gathers are formed and shrink three-dimensionally.

As shown in FIG. 2, the disposable pants 2 basically include a liquid-permeable sheet 3 on the outer surface side, a liquid-permeable sheet 4 on the skin side, and a single absorbent body. 5, the pocket sheet 6 and the elastic yarns 7, 8, 9, 10.

The liquid-permeable sheet 3 on the outer side is made of a synthetic fiber non-woven fabric or the like with good texture, and extends in the length direction L as shown in FIG. The width is set so that the 2A, the back portion 2B, and the crotch portion 2C can be molded side by side in the length direction of the liquid-permeable sheet 3 in the unfolded state.

More specifically, a pitch P corresponding to the width of the front abdomen 2A, the crotch 2C, and the back 2B in the unfolded state is set with respect to the length direction L of the liquid-permeable sheet 3; The disposable pants 2 continuously manufactured in the length direction L are cut off at each pitch P by cutting both in the width direction both break lines K in the process of FIG. 7 described later. In addition, on both sides of the liquid permeable sheet 3 in the width direction, a folded portion 3a for folding inward at a folded line r (see a two-dot chain line) is formed.

The liquid-permeable sheet 3 has leg holes 2D in the shape of a horizontally long ellipse centered on the intersection H between the center line G in the width direction and each of the broken lines K.

A plurality of waist elastic threads 7 are intermittently adhered to the waist positions of the front abdomen 2A and the back back 2B of the liquid permeable sheet 3 in a longitudinally extending state, respectively. A plurality of elastic yarns 9 for body fit are intermittently bonded in the lengthwise direction while being extended, and a plurality of elastic yarns 8 for legs are intermittently adhered in the extended state around the leg hole 2D. You.

Elastic thread 8 for the leg around the leg hole 2D
The upper leg elastic yarn 8 in FIG. 3 is intermittently bonded in a meandering state while making a U-turn without crossing the center line G in the crotch portion 2C in the width direction, and the lower leg elastic yarn 8 is also crotched. Intermittent bonding is performed in a meandering state while making a U-turn without exceeding the center line G in the width direction of the portion 2C. In addition, each leg elastic thread 8 intermittently bonded to the crotch 2C is
In a process to be described later, it is cut by a rectangular elongated hole 12 (see a two-dot chain line) formed in the crotch portion 2C.

The waist elastic yarn 7, the leg elastic yarn 8 and the body-fit elastic yarn 9 are band-like or thread-like natural rubber or synthetic rubber. Leg gathers and body fit gathers are naturally formed.

The liquid-permeable sheet 4 on the skin side is a nonwoven fabric made of synthetic fiber or the like, and as shown in FIG.
Each leg hole portion 2D is formed similarly to the liquid-permeable sheet-like body 3 on the outer surface side. In addition, the folded part 3a like the said liquid-permeable sheet-like body 3 is not formed.

The liquid-permeable sheet 4 on the skin side is set so as to be located between the folded portions 3a on both sides of the liquid-permeable sheet 3, and the intermittently bonded elastic yarns 7 to 9 are provided. To the liquid permeable sheet 3 on the outer surface side by welding or bonding.

After this joining step, a rectangular long hole 12 is formed in the crotch portion 2C of the liquid-permeable sheet 3 on the outer surface side and the liquid-permeable sheet 4 on the skin side by punching or the like. The long hole 12 is formed such that the crotch portion of the wearer facing the long hole 12 is formed of the absorbent body 5.
And the width and length are set to be slightly smaller than the outer shape of the absorber 5.

As shown in FIG. 2, the single absorber 5 is composed of a mixture of pulp fibers, a highly absorbent polymer, etc., with a liquid-impermeable back sheet 5a and a liquid-permeable top sheet 5b. The absorber core 5c is wrapped around and flattened.

The pocket sheet 6 is a liquid-impermeable plastic film or the like, as shown in FIG.
Each of the leg holes 2D is formed so as to extend in the length direction L and to have a width slightly larger than the length of the absorber 5 and similarly to the liquid-permeable sheet 3 on the outer surface side. ing. As shown in FIG. 2, a plurality of pocket elastic yarns 10 are intermittently bonded to each other in the width direction on both sides in the width direction of the pocket sheet-like body 6 while being extended in the length direction, and are folded inward. 6a is formed, and the folded portion 6a is folded inward so as to cover over the intermittently bonded elastic thread 10 and is joined to the inner surface of the pocket sheet body 6 by welding or bonding (FIG. 5 state). The hatched area in FIG. 5 is the bonded area, and the other area is the non-bonded area. The width of the non-bonded area is set to be slightly wider than the width of the absorber 5.

The joining area of the pocket sheet 6 is welded or bonded to the outer surface of the crotch portion 2C of the liquid-permeable sheet 3 on the outer surface side, so that the pocket sheet is formed by the non-joining area. A hollow pocket portion 11 having openings 11a and 11b is formed on both sides of the body 6 in the width direction. In each of the openings 11a and 11b, pocket gathers in the direction of closing by the contraction force of the elastic yarn 10 are formed.

After such a joining step, as shown in FIG. 6, the center line G in the width direction of each of the sheet bodies 3 and 4, ie,
As shown in FIG. 7, the front abdomen 2A and the back back 2B are overlapped with each other with the crotch 2C at the center, and the two disconnections K at the pitch P are made.
Is welded or bonded at a predetermined width to the both-end joint (side seal) portion 2c at the position.

By cutting both ends of the joint 2c at both ends K, the disposable pants 2 continuously manufactured in the longitudinal direction L are cut off one by one as shown in FIG. Become.

The pocket 5 is formed by joining the pocket sheet 6 to the outer surface of the crotch 2 C of the liquid-permeable sheet 3 and forming the pocket 11.
However, it is assumed that the pocket sheet-like body 6 is accommodated at the same time as the pocket 11 is formed by joining the pocket sheet-like body 6 to the outer surface of the crotch portion 2C of the liquid-permeable sheet-like body 3. May be.

As described above, the crotch 2 of the disposable pants 2
C, a pocket portion 11 is formed on the outer surface side, and the pocket portion 11 has an absorber 5 that can be replaced through openings 11a and 11b.
Is accommodated, as shown in FIG.
The crotch part 13a of the disposable pants 2 is the long hole 1 of the crotch part 2C.
2 comes into direct contact with the absorber 5.

When the absorber 5 is contaminated by incontinence or the like,
As shown by a two-dot chain line in FIG. 9B, the upper end portion of the opening 11 a or 11 b (either one is good) of the pocket portion 11 is pulled outward against the contraction force of the elastic yarn 10 and opened. 11a and 11b are widely opened (see arrow E), only the dirty absorber 5 is pulled out of the pocket portion 11 from the widely opened openings 11a and 11b, and a new absorber 5 is inserted into the pocket portion 11 from the openings 11a and 11b. (Arrow F
reference).

As described above, since only the absorber 5 can be easily replaced from the disposable pants 2, there is no need to replace the disposable pants 2 with the dirty absorber 5 with new disposable pants 2 as in the related art. This is very convenient when the absorber 5 is frequently soiled.

The pocket 11 has both sides of the liquid-impervious pocket sheet 6 joined to the outer surface of the crotch 2C of the disposable pants 2, so that the liquid leaks from the absorber 5. Even in such a case, further leakage is prevented by the liquid impermeable sheet of the pocket portion 11, so that the clothes can be prevented from being stained. Further, since pockets are formed in each of the openings 11a and 11b in a direction in which the pockets are closed by the contraction force of the pocket elastic yarn 10, the liquid leaking from the absorber 5 is discharged from the openings 11a and 11b to the outside of the pocket portion 11. There is no leakage.

In the above embodiment, the rectangular long hole 12 is formed by punching or the like in the crotch 2C of the liquid-permeable sheet 3 on the outer surface and the liquid-permeable sheet 4 on the skin. As shown in FIG. 8, if a slit 14 is formed in place of the elongated hole 12, only the male pubic part can be exposed through the slit 14 and directly contact the absorber 5 for male use only. In the case of unisex, a cut line (see a virtual line h) that matches the outer shape of the long hole 12 is formed in advance, and the liquid-permeable sheet 3 and the skin side are formed from the cut line h. By appropriately cutting off the liquid-permeable sheet 4, the wearer or the like may form the elongated hole 12 as necessary.

In the above embodiment, the disposable pants 2 are used as diapers for infants and incontinent adults.
Although the absorber 5 is provided in the pocket portion 11 of the crotch portion 2C,
When used as a disposable pants for travel instead of a diaper, for example, it is not necessary to store the absorber 5 in the pocket portion 11. In this way, the versatility is improved because the pants can be diverted as disposable pants for travel.

[0033]

As is apparent from the above description, according to the present invention, the disposable pants are provided with the absorbent body which can be exchanged through the opening of the pocket portion in the pocket formed on the outer surface side of the crotch portion and worn. The crotch part of the person comes into direct contact with the absorber through the crotch hole or slit, so if the absorber is soiled due to incontinence, etc., only the absorber can be easily replaced from the opening in the pocket part. Therefore, there is no need to replace disposable pants with a dirty absorbent body with new disposable pants as in the related art, which is very convenient when the absorbent body frequently becomes dirty.

Further, if the pocket portion is formed by joining both sides of the liquid-impermeable sheet to the outer surface of the crotch portion (claim 2), the liquid may leak from the absorber. Further, since the liquid-impervious sheet in the pocket portion prevents further leakage, it is possible to prevent clothes from being stained.

[Brief description of the drawings]

FIG. 1 is a disposable pants according to the present invention, wherein (a) is a front view, (b) is an enlarged cross-sectional view taken along line AA of (a), and (c) is an enlarged cross-sectional view taken along line BB of (a). It is.

FIG. 2 is an exploded perspective view of parts of the disposable pants.

FIG. 3 is a plan view of a liquid-permeable sheet on the outer surface side.

FIG. 4 is a plan view of a liquid-permeable sheet on the skin side.

FIG. 5 is a plan view of the pocket sheet.

FIG. 6 is a plan view in which the respective sheet members are joined.

FIG. 7 is a plan view of a continuously manufactured disposable pants before separation.

FIG. 8 is a plan view of a modification in which each sheet is joined.

9A is a side view of the disposable pants in a worn state, and FIG. 9B is an enlarged sectional view of a main part of FIG. 9A.

[Explanation of symbols]

 Reference Signs List 2 disposable pants 2A front abdomen 2B back back 2C crotch 2D leg hole 3 liquid-permeable sheet on outer side 4 liquid-permeable sheet on skin side 5 absorber 6 sheet for pocket 7, 8, 9, 10 Elastic thread 11 Pocket 11a, 11b Opening 12 Slot 14 Slit

Claims (2)

[Claims] 1. A leg hole is formed on both sides of a crotch between an anterior abdomen and a back in an unfolded state, and the anterior abdomen and the back are superimposed on the crotch so that the anterior abdomen and the back Disposable pants in which both ends of a back portion are joined to each other, wherein a pocket portion having an opening on at least one of a front abdomen side and a back portion side is formed on an outer surface side of the crotch portion. A disposable pants, wherein an absorber replaceable from an opening is accommodated, and a hole or a slit is formed in the crotch portion so that a wearer's crotch portion can directly contact the absorber. 2. The disposable pants according to claim 1, wherein the pocket portion is formed by joining both sides of the liquid-impermeable sheet to an outer surface of the crotch portion.