JP2001346827A - Disposable paper diaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disposable paper diaper certainly prevented from slipping down by arranging an elastic stretchable sheet material not only to one's girth but also to one's waist traversing an absorbing material and rapidly absorbing body fluids at the part of the absorbing material to prevent the same from leaking before and behind. SOLUTION: An end part flap F showing flexibility is constituted of a surface sheet 1 and an air permeable back sheet positioned on the side of clothing from a back sheet 2 and an elastic stretchable sheet material 40, which consists of a plurality of narrow elastic stretchable members 41, etc., showing elastic stretchability in the width direction of the disposable paper diaper and integrated in a stretched state so as to leave an interval between surface and rear flexible sheets 22A and 22B in the longitudinal direction of the paper diaper, is interposed between the surface sheet 1 and the back sheet 30 to be arranged so as to straddle the back surface of the absorbing material 3 and the end part flap F to allow the shrink force of the elastic stretchable sheet material 40 to act on the absorbing material 3 and the end part flap F.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable tape-type disposable diaper having an elastic elastic sheet material at a longitudinal end of a product, preferably of a tape type.

[0002]

2. Description of the Related Art There has been a remarkable improvement in disposable diapers in recent years, and a typical example of the improvement is a means for preventing body fluid from leaking back and forth. In order to prevent body fluid from leaking back and forth, it is sufficient to tighten the waist band to the skin to a certain extent, but excessive compression may burden the wearer, and so attempts have been made to use a plurality of thread rubbers. In addition, if the body fluid is prevented from leaking back and forth only by the waist elastic member, the body fluid flowing to the end flap stays on the skin for a long time, causing rash.

[0003] A typical example for solving this kind of problem is a pants-type disposable diaper disclosed in Japanese Patent No. 2833720, although it is not a tape type. This patent invention uses a large number of thread rubbers and arranges not only the waist (torso) but also a part around the waist that crosses the absorber, so that the slippage can be reliably reduced while loosening as a whole. We are trying to prevent it. Then, by arranging a part of the thread rubber also around the waist crossing the absorber, it is possible to prevent the absorber from being separated from the skin and causing a rash toward the longitudinal end by causing the absorber to be exposed to the skin. In close contact with
The purpose is to promptly absorb body fluid at the absorber.

[0004]

However, in the pants-type disposable diaper, there is no portion that hinders the thread rubber from extending over the entire width of the front body and the back body. It is possible, but with tape-type disposable diapers,
A fastening tape is provided on both sides of the rear body of the product to prevent overlap with it, and to prevent the product shape from being uncertain when the both sides of the rear body of the product are also contracted in the width direction. Cannot span the full width of the product.

In order to fix the thread rubber only in the middle part of the rear body of the product without spreading the thread rubber over the entire width of the product, a predetermined length is required. It is extremely difficult to prepare a thin thread rubber and hold it at both ends to stretch and fix only the middle part to the product material sheet for each thread rubber. It is necessary to adopt a form of fixing to a predetermined part of the product material sheet with hot melt adhesive etc.
Therefore, between the fixed end of the thread rubber and both side edges of the rear body of the product, a non-fixed portion for cutting and shrinking the thread rubber at both side edges of the product must be formed, and as a result, the non-fixed portion must be formed. This results in a form in which the body fluid leaks laterally through the fixing portion.

Accordingly, a main object of the present invention is to dispose the elastic elastic member sheet material not only around the waist, but also partly around the waist crossing the absorber, so that the elastic material can be surely slipped off as a whole. It is intended to prevent body leakage and to prevent body fluid from leaking back and forth by absorbing the body fluid promptly at the absorber.

Another problem in relation to the above-mentioned problems is that, particularly in a tape-type disposable diaper, the elastic elastic member sheet material does not extend over the entire width of the product, so that the middle portion of the rear body of the product can be used. An object of the present invention is to fix the elastic elastic member sheet material only to the elastic material sheet during the continuous assembly process of the product.

[0008] Other problems will become apparent in the following description.

[0009]

The present invention which has solved the above problems is as follows. <Invention according to claim 1> In a disposable disposable diaper having a structure in which an absorbent having a certain degree of rigidity is interposed between a top sheet and a back sheet impermeable to body fluid, at least one of the longitudinal ends of the product. At the end of the product, along the width direction of the product, an elastic stretchable sheet material that exhibits elastic stretchability in the width direction is provided, and the elastic stretchable sheet material does not include the back side of the absorber and the absorber. A disposable disposable diaper which straddles a flexible end flap, wherein a contraction force of the elastic stretch sheet material acts on the absorber and the end flap.

(Function and Effect) A. Since the elastic stretchable sheet material is disposed over the back side of the absorber and the end flap showing flexibility without the absorber, the shrinkage force of the elastic stretchable sheet material is reduced by the absorber. And since it acts on the end flaps, it is possible to prevent slippage while being loose as a whole, and to absorb body fluids promptly at the absorber portion, thereby preventing longitudinal leakage. B. In this case, for example, it is supposed that the elastic elastic sheet material is provided between the surface of the absorber and the surface sheet so that the absorber is pressed against the skin. The fit is not good, the skin and the topsheet are separated, and the bodily fluid moves in the front-back direction of the product. It needs to be extended. In the back sheet made of such a polyethylene sheet, air permeability for preventing stuffiness cannot be secured at the flap portions at the front and rear ends. However, in the present invention, since the elastic elastic sheet material is disposed on the back side of the absorber, the absorber is pressed against the skin from behind, and the fit of the absorber to the skin is improved. Is very good, the skin and the topsheet do not separate, and the bodily fluid is absorbed by the absorber without moving in the front-back direction of the product. It suffices to cover only the absorber portion, and even if a breathable (preferably hydrophobic, which is not required to be impermeable to bodily fluids) back flaps, the leakage of bodily fluids can be prevented. C. On the other hand, the elastic stretchable sheet material of the present invention is a sheet having a width so as to straddle the back side of the absorber and an end flap which is flexible without the absorber. Therefore, since it is easy to grip both end portions, it is necessary to fix the elastic elastic member sheet material only to the middle portion of the body without continuously extending the elastic elastic member sheet material over the entire width of the product. In performing during the assembly process,
It is easy to prepare an elastic elastic member sheet material of a predetermined length, grasp and extend both ends thereof, and fix only the intermediate portion to the product material sheet.

<Invention according to claim 2> In a disposable disposable diaper having a structure in which an absorbent exhibiting a certain degree of rigidity is interposed between a top sheet and a back sheet impermeable to body fluid, the product has a longitudinal end portion. At least at one end, along the width direction of the product, an elastic stretch sheet material showing elastic stretch in the width direction is provided, and the elastic stretch sheet material is a front and back flexible sheet and between these sheets. A plurality of thin elastic elastic members that are integrated in an extended state at intervals in the longitudinal direction of the product, and extend beyond both side edges of the absorber; the back side of the absorber and the absorber A disposable paper diaper which straddles an end flap showing flexibility without the presence of the elastic member, and wherein a contraction force of the elastic elastic sheet material acts on the absorber and the end flap. .

(Effects) In addition to the effects of A to C,
D. The elastic stretchable sheet material includes a front and back flexible sheet and a plurality of thin elastic stretchable members that are integrated in an extended state with a space between the sheets in the longitudinal direction of the product. Therefore, it becomes easy to fix the elastic elastic member sheet material only to the widthwise intermediate portion of the body during the continuous assembly process of the product.

<Invention according to claim 3> In a disposable disposable diaper having a structure in which an absorbent exhibiting a certain degree of rigidity is interposed between a body fluid-permeable top sheet and a body fluid-impermeable backsheet. At a portion where the absorber does not exist on at least one end side of the longitudinal end portion, an end flap showing flexibility is configured by the top sheet and the back sheet located on the clothing side from the back sheet, An elastic stretch sheet material that is interposed between the top sheet and the back sheet and that exhibits elastic stretch in the width direction is provided along the width direction of the product, and the elastic stretch sheet material is a front and back flexible sheet. And consisting of a plurality of thin elastic elastic members integrated in an extended state at a longitudinal interval of the product between these sheets, and extending beyond both side edges of the absorber, Serial and back side of the absorbent body and extend over said end flaps, disposable diapers shrinkage force of the elastic stretchable sheet material is configured to act on the absorbent body and the end flap, it is characterized.

(Effects) In addition to the effects of A to D,
E. FIG. In constituting the end flap showing flexibility,
Rather than comprising a top sheet and a back sheet,
The back sheet is, for example, only an area covering the absorber, and instead, a back sheet is provided on the clothing side of the back sheet,
An end flap can be constituted by the back sheet and the top sheet.

<Invention according to claim 4> A disposable disposable diaper having a structure in which an absorbent having a certain degree of rigidity is interposed between a body fluid-permeable and air-permeable top sheet and a body fluid-impermeable back sheet. At least one end side of the longitudinal end of the product, at a portion where the absorber is not present, an end portion showing flexibility by the top sheet and the breathable back sheet located closer to the garment than the back sheet. A flap is configured, interposed between the topsheet and the backsheet, along the width direction of the product,
An elastic stretch sheet material exhibiting elastic stretch properties in the width direction is provided, and the elastic stretch sheet material has air permeability and at least one of the front and back flexible sheets that does not substantially transmit body fluid, and between these sheets. A plurality of thin elastic elastic members that are integrated in an extended state at intervals in the longitudinal direction of the product, and extend beyond both side edges of the absorber; A disposable paper diaper straddling a flap, wherein a contraction force of the elastic elastic sheet material acts on the absorber and the end flap.

(Effects) In addition to the effects of A to E,
F. The backsheet was made breathable. In addition, the elastic stretchable sheet material has air permeability. Therefore, in the end flap, air permeability is ensured, and stuffiness can be prevented.

<Invention according to claim 5> The disposable paper diaper is a tape-type paper diaper, the end flap is a back side to which a fastening tape is fixed, and the elastic elastic sheet material is substantially at the back side. Across the entire width direction,
The disposable paper diaper according to any one of claims 2 to 4, wherein the fastening tape is fixed to the product at a position overlapping the elastic elastic sheet material.

(Effects) The elastic stretchable sheet material comprising a front and back flexible sheet and a plurality of thin elastic stretchable members integrated in an extended state with a space between the sheets in the longitudinal direction of the product, The fastening tape extends substantially over the entire width direction on the back side, and the fastening tape is fixed to the product at a position overlapping the elastic elastic sheet material.
G. FIG. As a result, when attaching the product disposable diaper, a relatively strong force acts when the both fastening tapes are picked and pulled to both sides, but this force can be received by the front and back flexible sheets, and the front and back sheets are reinforced. Also functions as a material.

<Invention of claim 6> The longitudinal edge of the back sheet is substantially located at the longitudinal edge of the absorber,
A part of the elastic stretchable sheet material is interposed between the longitudinal end of the back sheet and the absorber, and the back sheet extends beyond the longitudinal edge of the back sheet in the longitudinal direction of the product. The disposable disposable diaper according to claim 4, wherein the disposable disposable diaper is directed toward the front.

(Effects) The elastic stretchable sheet material includes a front and back flexible sheet having air permeability and at least one of which is substantially impermeable to body fluids. A part of the elastic stretch sheet material is interposed between the longitudinal end of the back sheet impermeable to body fluid and the absorber, and the back sheet extends beyond the longitudinal edge of the back sheet in the longitudinal direction of the product. Towards the edge. H. Therefore, even if it goes from the longitudinal end of the absorber to the longitudinal edge of the product, the presence of the front and back flexible sheets that does not allow the permeation of the bodily fluid prevents the permeation of the bodily fluid to the clothing side. As a result, the material is not limited to the material of the back sheet, and may be a material that is permeable and permeable to bodily fluids.

<Invention according to claim 7> The invention according to any one of claims 1 to 6, wherein other elastic elastic members are not provided around the trunk and waist other than the elastic elastic sheet material at the end portion. Disposable paper diapers.

(Function and Effect) The elastic elastic sheet material according to the present invention can also exert the function of the elastic elastic member around the trunk.

<Invention according to claim 8> The elastic stretchable sheet material is stretched with a longitudinal interval of the product at an intermediate portion between the front and back flexible sheets except for both ends in the length direction. The disposable paper diaper according to any one of claims 1 to 7, comprising a plurality of integrated thin elastic elastic members.

(Function and Effect) Since no contraction force acts on both ends in the length direction of the elastic elastic sheet material, it is easy to grip both ends in the processing step, and when this is fixed to the product, the contraction force acts on both sides of the product. No, the product shape is stable.

<Invention according to claim 9> The disposable paper diaper according to any one of claims 1 to 8, wherein the elastic stretchable sheet material is not fixed to each other at a portion overlapping the absorber.

(Operation and Effect) Since the elastic stretchable sheet material is not fixed to each other in a portion overlapping with the absorber, the elastic stretchable elastically stretches without the absorber and improves the fit of the absorber to the skin.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to embodiments shown in the drawings. In addition, as the disposable disposable diaper of the present invention, in addition to the tape disposable diaper, it is apparent that the disposable disposable diaper can also be applied to a pants-type disposable diaper. Examples are omitted.

<Basic Form> In the illustrated disposable diaper, a cotton-like pulp is provided between a liquid-permeable (and thus air-permeable) top sheet 1 made of non-woven fabric and a body fluid-impermeable back sheet 2 made of polyethylene or the like. For example, an absorber 3 having a certain rigidity, such as a rectangular shape or preferably an hourglass shape as shown in the figure, is interposed. The absorber 3 is covered with upper and lower (front and back) tissue papers 3A and 3B for absorption, and constitutes an absorption element. As shown in FIG. 2, the upper and lower tissue papers 3 </ b> A and 3 </ b> B as the absorbing sheets extend beyond the side edges of the absorber 3 in the leg surrounding portions. This extended portion also has a urine absorbing function.

The back sheet 2 has a rectangular shape wider than the absorbing element, and a back sheet 30 made of nonwoven fabric or the like, which is air-permeable and preferably hydrophobic, is provided outside the rectangular sheet. The back sheet 30 and the top sheet 1 coincide with the longitudinal edges of the product disposable diaper.

The topsheet 1 has a rectangular shape wider than the absorbing element, extends slightly outward from the side edge of the absorbing element, and is fixed to the backsheet 2 by a hot melt adhesive or the like (including the fixing portion). (A fixed part related to the present invention is indicated by a symbol *).

On both sides of the disposable diaper, upright cuffs (barrier cuffs) B projecting toward the surface to be used are formed. The upright cuffs B are provided with an upright sheet 4 substantially continuous in the width direction. It is constituted by an elastic elastic member, for example, one or a plurality of leg elastic elastic members 5 around the leg as shown in the drawing.

Further, the standing cuff B is formed by the standing sheet 4
The inner surface is folded in a short step and the inner surface is doubled,
Each leg elastic elastic member 5 is wrapped in a state of being fixed by a hot melt adhesive or the like.

The inner surface of the double erecting sheet 4 has a fixing start end at an end of the top sheet 1, and a portion outside the width direction from the fixing start end to the extending edge of the back sheet 2 has a hot melt adhesive. It is fixed by such as. The outer surface of the double erecting sheet is fixed to the back sheet 30 on the lower surface thereof with a hot melt adhesive or the like.

As a result, the inner surface of the double standing sheet
The starting end of attachment to the topsheet 1 forms the upright end of the upright cuff B. Around the leg, the inside of the standing end is a free portion that is not fixed to the product body, and includes a standing portion 10 facing the center side of the product and a flat contact portion 20 that is turned upside down and turned outward in the middle. Functionally and conceptually separated.

The back sheet 30 is fixed to the outer surface of the double erecting sheet and the back sheet 2 with a hot melt adhesive or the like.

On the other hand, as shown in FIG. 3, at the front and rear ends in the longitudinal direction, the upright portion (extending portion of the upright portion 10) 10A is directed toward the center of the article by hot melt adhesive or the like. The article is fixed to the outer surface of the topsheet 1, specifically, the upright portion 20A with the flat contact portion (extended portion of the flat contact portion 20) turned upside down.
Fixed on top.

The basic configuration of the elastic elastic member 5 is that at least one elastic elastic member 5 is provided at the flat contact portion 20. In particular, it is preferable that the elastic elastic member 5 be provided at the tip of the flat contact portion 20. It is preferable that the upright portion 10 also has the elastic elastic member 5.

The optimum configuration is near the upright end, near the turn, and at the tip of the flat contact portion 20. It is more desirable to have a plurality of pieces at the tip of the flat contact portion 20 as shown in the figure. The upright part 10 can further be provided with elastic elastic members 5 and 5 to increase the upright force. In the illustrated embodiment, the total number is six.

FIG. 2 and FIG. 3 show a state in which the disposable diaper is elongated in the longitudinal direction. At the time of attachment, the disposable diaper is attached to the body in a boat shape.
Since the contraction force of... Acts, as shown in the lower part of FIG.
While the front and rear ends of the product maintain the state shown in FIG. 3, the upright cuffs B stand up around the legs due to the contraction forces of the elastic members 5, 5,.

At this time, the upper and lower tissue papers 3A,
The extending portion of 3B is deformed and lifted, and the absorber 3 is also slightly deformed and lifted to form a deep pocket space.

Moreover, in this raised state, the contraction force of each of the elastic members 5, 5... Acts on the standing cuff B itself, so that the standing portion 10 stands almost vertically. Although the flat contact portion 20 also stands vertically, the flat contact portion (extended portion of the flat contact portion 20) is fixed on the standing portion corresponding portion 20A in a state where the flat contact portion (extended portion of the flat contact portion 20) is turned over.
There is also a limit to the vertical standing, and the plane contact portion 20 stands while maintaining the vertical state while maintaining the vertical standing force (the force indicated by the arrow in FIG. 3).

As a result, the flat contact portion 20 always fits flat around the wearer's leg.

The space surrounded by the standing portions 10 and 10 forms a space for confining urine or loose stool. When urine is discharged into this space, the urine is absorbed into the absorber 3 through the topsheet 1, and the rising portions 10, 10 of the rising cuffs B serve as barriers for loose stool solids. Is prevented. In the unlikely event that urine leaks laterally over the standing distal edge of the standing portion 10, lateral leakage is prevented by the stop function of the flat contact portion 10.

In the above example, it is desirable that the erecting sheet forming each of the erecting cuffs is not liquid-permeable but liquid-impermeable. Further, the liquid-permeable sheet may be made to have a property of repelling liquid by silicon treatment or the like.
Further, in the above embodiment, the upright end of the leg-surrounding upright sheet 4 is the back sheet 2, and the outside thereof is the back sheet 3.
However, the back sheet 30 may be omitted, the back sheet 2 may be extended to the lateral edge of the product, and the erecting sheet 4 may be fixed to the back sheet 2.

On the other hand, as a correlation between the flat contact portion 20 and the elastic elastic member 5 of the upright portion 10, the elastic elastic member 5 of the flat contact portion 20 is thin and has a large shrinkage ratio, and the elastic elastic member 5 of the upright portion 10 is thick. Those having a small shrinkage ratio are preferred. Specifically, when the elastic elastic member is made of thread rubber, the elastic elastic member 5 of the flat contact portion 20 has a shrinkage of 400 to 640d, a shrinkage of 160 to 300%, and the elastic elastic member 5 of the upright portion 10.
Can be 640 to 2100d and the shrinkage ratio can be 150 to 250%.

<About the elastic elastic member sheet material and the fixing form thereof> In the above-described embodiment, the end flaps F, F exhibiting flexibility by the air-permeable back sheet 30 located on the clothing side of the top sheet 1 and the back sheet 2. Is configured.

As shown in FIG. 1, fastening tapes 7, 7 made of an adhesive or a mechanical fastener tape (surface fastener tape) are fixed to both sides of the back body. The back body is fixed to the front body by the fastening tapes 7, 7, and the circumference of the abdomen and the circumference of the waist are fitted to the wearer's skin.

For this purpose, in relation to FIG. 1, as shown in FIG. 4, at least one of the longitudinal ends of the product, in the illustrated embodiment, the front and rear back body and front body side A surface sheet 1 is applied to each part where the body 3 does not exist.
And between the back sheet 30 and along the width direction of the product,
Elastic stretchable sheet materials 40, 40 exhibiting elastic stretchability in the width direction
0 is interposed.

These elastic elastic sheets 40, 400
The front and back flexible sheets 42A and 42B, which are air-permeable and at least one of which is substantially impermeable to body fluids, and a plurality of thin sheets integrated in an extended state with a longitudinal interval of the product between these sheets . Are formed of the elastic elastic members 41, 41,.

The elastic elastic sheet member 400 is located entirely in the end flap F of the rear body and extends beyond both side edges (the left and right edges in FIG. 1) of the absorber 3 according to the present invention. The elastic stretchable sheet material 40 extends beyond both side edges of the absorber 3 and is disposed across the back side of the absorber 3 and the end flap F.

Thus, the contraction force of the elastic stretchable sheet member 40 is applied to both the absorber 3 and the end flap F (the operation state of the contraction force is shown by a white arrow in FIG. 4). .).

The front and back flexible sheets 42A and 42B of the elastic stretchable sheet member 40 are made of, for example, a water-repellent nonwoven fabric. It is desirable to use thread rubber as the plurality of thin, preferably about 4 to 15 elastic elastic members 41, 41.
The shrinkage rate can be set to 200 to 1000 d and the shrinkage rate can be set to 120 to 300%.

The elastically stretchable members 41, 41 are extended between the front and back flexible sheets 42A, 42B in the middle part except for both ends in the longitudinal direction, and in order to ensure the air permeability, not the whole surface, Intermittent, preferably spiral, hot melt adhesive.

The elastic stretchable sheet material 40 extends over substantially the entire width in the back body of the back side, while the fastening tapes 7, 7 are applied to the product at the position where the elastic tapes 7 overlap the elastic stretchable sheet material 40. Fixed. Since the elastic stretchable sheet material 40 is on the line connecting the fastening tapes 7, 7, it acts as a reinforcing material against the developing force of the disposable diaper.

On the other hand, the longitudinal edge of the back sheet is substantially located at the longitudinal edge of the absorber 3 and
0 is interposed between the longitudinal end of the back sheet 2 and the absorbent body 3, and the back sheet 30 extends beyond the longitudinal edge of the back sheet 2 toward the longitudinal edge of the product. .

Further, as shown in FIG. 4 showing the fixing portion by the hot melt adhesive, the elastic stretchable sheet material 40 is not fixed to each other at the portion overlapping the absorber 3.

The elastic elastic sheet material 40 is prepared before the assembling process, and is stretched while being gripped at both ends during the assembling process, and is incorporated into a semi-finished product.

According to this embodiment, the above-described operation and effect can be obtained without need to explain again.

[0059]

As described above, according to the present invention, the elastic and elastic member sheet material is arranged not only around the waist but also partly around the waist crossing the absorber, so that the elastic material can be loosened as a whole but assured. In addition to preventing slippage, the body part absorbs body fluids promptly, thereby preventing back-and-forth leakage.

In particular, in a tape-type disposable diaper, fixing the elastic elastic member sheet material only to the intermediate portion of the back body of the product without causing the elastic elastic member sheet material to span the entire width of the product. This can be performed during the continuous assembly process of the present invention.

[Brief description of the drawings]

FIG. 1 is a partially broken plan view of a disposable diaper according to the present invention in an unfolded state.

FIG. 2 is a view taken along line 2-2 in a deployed state and a mounted state.

FIG. 3 is an arrow view along line 3-3 in FIG. 1;

FIG. 4 is a longitudinal sectional view of a main part of a back body.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Top sheet, 2 ... Back sheet, 3 ... Absorber, 40 ...
Elastic elastic sheet material, 41 ... elastic elastic member, 42A, 42
B: Sheet, B: Standing cuff, G ... plane gather cuffs.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Masamichi Ogawa 4765-11 Samukawa-cho, Iyo Mishima City, Ehime Prefecture F-term (reference) 3D029 BD10 BD14 4C098 AA09 CC02 CC12 CE06 CE14 DD01

Claims (9)

[Claims] 1. A disposable disposable diaper having a structure in which an absorbent exhibiting a certain degree of rigidity is interposed between a top sheet and a back sheet impermeable to body fluid, wherein at least one of the longitudinal ends of the product. At
An elastic elastic sheet material exhibiting elastic elasticity in the width direction is provided along the width direction of the product, and the elastic elastic sheet material exhibits flexibility without the back side of the absorber and the absorber. A disposable disposable diaper which straddles an end flap, wherein a contraction force of the elastic stretch sheet material acts on the absorber and the end flap. 2. A disposable disposable diaper having a structure in which an absorbent exhibiting a certain degree of rigidity is interposed between a top sheet and a back sheet impermeable to body fluid, wherein at least one of the longitudinal ends of the product is provided. At
Along the width direction of the product, there is provided an elastic stretchable sheet material exhibiting elastic stretchability in the width direction, and the elastic stretchable sheet material is provided with a front and back flexible sheet and a longitudinal interval of the product between these sheets. A plurality of thin elastic elastic members that are integrated in a stretched state, and extend beyond both side edges of the absorber, so that the back side of the absorber and the absorber do not exist, thereby increasing flexibility. A disposable paper diaper which straddles an end flap shown in the drawing and is configured such that a contraction force of the elastic elastic sheet acts on the absorber and the end flap. 3. A disposable disposable diaper having a structure in which an absorbent having a certain degree of rigidity is interposed between a body fluid-permeable top sheet and a body fluid-impermeable backsheet, wherein at least one of the longitudinal ends of the product is provided. In a portion where the absorber is not present on one end side, an end flap showing flexibility is configured by the top sheet and the back sheet located closer to the garment than the back sheet, and the top sheet and the back Interposed between the seat and
Along the width direction of the product, there is provided an elastic stretchable sheet material exhibiting elastic stretchability in the width direction, and the elastic stretchable sheet material is provided with a front and back flexible sheet and a longitudinal interval of the product between these sheets. A plurality of thin elastic elastic members integrated in a stretched state, and extending beyond both side edges of the absorber, straddling the back side of the absorber and the end flap, A disposable disposable diaper, characterized in that a contraction force of an elastic stretch sheet material acts on the absorber and the end flap. 4. A disposable disposable diaper having a structure in which an absorbent exhibiting a certain degree of rigidity is interposed between a body fluid-permeable and air-permeable top sheet and a body fluid-impermeable backsheet, wherein a longitudinal end of the product is provided. In a portion where the absorber is not present on at least one end of the portion, a flexible end flap is configured by the top sheet and the breathable back sheet located closer to the garment than the back sheet, Interposed between the topsheet and the backsheet,
Along with the width direction of the product, an elastic elastic sheet material exhibiting elastic elasticity in the width direction is provided, and the elastic elastic sheet material has air permeability and at least one of the front and back flexible members does not substantially transmit body fluid. Consisting of a plurality of thin elastic elastic members that are integrated in an extended state with a longitudinal sheet of the product between them in a longitudinal direction,
Moreover, the elastic body extends over both side edges of the absorber and straddles the back side of the absorber and the end flap, and the contraction force of the elastic elastic sheet acts on the absorber and the end flap. A disposable disposable diaper, characterized in that: 5. The disposable disposable diaper is a tape disposable diaper, the end flap is a back side to which a fastening tape is fixed, and the elastic stretchable sheet material extends over substantially the entire width direction on the back side. The disposable paper diaper according to any one of claims 2 to 4, wherein the fastening tape is fixed to the product at a position overlapping the elastic elastic sheet material. 6. The longitudinal edge of the back sheet is located substantially at the longitudinal edge of the absorber, and a portion of the elastic stretchable sheet material is formed between the longitudinal end of the back sheet and the absorber. 5. The disposable paper diaper of claim 4, interposed therebetween, wherein the backsheet extends beyond a longitudinal edge of the backsheet toward a longitudinal edge of the product. 7. The disposable disposable diaper according to claim 1, wherein at the end, other elastic elastic members are not provided around the trunk and waist other than the elastic elastic sheet material. 8. The elastic elastic sheet material has an intermediate portion at both ends of the front and back flexible sheets except for both ends in the length direction thereof.
The disposable paper diaper according to any one of claims 1 to 7, comprising a plurality of thin elastic elastic members that are integrated in an extended state at intervals in a longitudinal direction of the product. 9. The elastic elastic sheet material is not fixed to each other at a portion overlapping the absorber.
The disposable disposable diaper according to any one of the above.