JP2001178770A - Brief type throwaway paper diaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brief type throwaway paper diaper which is well-fitting and comfortable to wear and hardly slips down. SOLUTION: This brief type throwaway paper diaper has a paper diaper constituting sheet material with an absorber 13 laid between a liquid permeable top sheet 11 on a body side and a body back sheet 20 for covering an outer face side, which is folded at the longitudinal center as a fold line so as to overlap a front garment with a rear garment for thermal welding between both edges of the front and rear garments. At portions of the front and rear garments, a section of a garment flap ES from a waist opening edge nearly to a leg opening upper edge is divided into three sections, a waist section A, an upper armpit section B and a lower armpit section C in the order of the waist opening edge. A plurality of elastically expansive members 23, 24, 25, 27 are arranged along the cross direction of the paper diaper in the respective sections. The relation, [the lower armpit section C >= the upper armpit section B > the waist section A] is applied to the elastically expansive force in the sections.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pants-type disposable disposable diaper which is easy to put on, has excellent fit, and does not easily slip off.

[0002]

2. Description of the Related Art Conventionally, pants-type disposable paper diapers have been used for the purpose of accelerating diaper separation or releasing an adult from a mounting operation using a fastening tape each time and simplifying the mounting. Offered on the market with disposable disposable diapers.

[0003] The applicant of the present invention also discloses Japanese Patent Application Laid-open No. Hei 10-127687.
In Japanese Patent Application Laid-Open No. 11-128267, a pants-type disposable paper diaper has been proposed. Taking as an example the pants-type disposable paper diaper proposed in the former JP-A-10-127687, this pants-type disposable paper diaper has a liquid-permeable topsheet 52, polyethylene and the like as shown in FIG. Waterproof film 53 made of an absorbent body 5 interposed between these two sheets.
4 has a structure in which a main body back sheet 51 is provided on the outer surface side of the disposable diaper main body 50 composed of

The main body backsheet 51 has a two-layer structure of a front backsheet 55 and a backside backsheet 56. Between these two sheets 55, 56, a waist around the waist opening for sealing the paper diaper is provided. Elastic elastic members 57 ... 58
Are provided, and abdominal elastic elastic members 59,... And dorsal elastic elastic members 60,. The first and second leg elastic members 61,... For sealing the periphery and the second elastic elastic members 62,.
Are provided. This leg elastic first elastic member 6
1, ... are one or a plurality of elastically stretchable members continuously arranged from the front body F end around one leg to the crotch portion and to the front body F end around the other leg. The second elastic elastic members 62,... Are one or a plurality of elastic elastic members arranged continuously from the rear body B end of one leg around the crotch portion to the rear body B end of the other leg. is there. At the crotch portion of the paper diaper, the first elastically expandable members 61,... And the second elastically expandable members 62,... Are arranged along the width direction of the paper diaper while approaching each other without intersecting.

[0005] The disposable diaper main body 50 has a waterproof film 53 on the outer surface almost entirely bonded and integrated with the front surface back sheet 55 of the main body back sheet 51 with a hot melt adhesive. In the above-mentioned disposable diaper, the front body F and the back body B are superimposed on the folding line L substantially at the center,
The two side edges are joined by a welding method such as an ultrasonic welding method to form a pants shape.

[0006]

However, in the case of the pants-type disposable paper diaper, the elastic elastic force of the waist elastic elastic members 57, 58... ... and the back elastic member 6
0, 60... Are arranged with uniform elastic expansion and contraction force in the width direction of the disposable diaper in the entire section of the arrangement area section, that is, in the section from the waist opening edge to the upper edge of the leg opening. There were problems such as the sex and wearing comfort not always being good.

That is, as shown in FIG. 14, the body shape of the infant is not constricted at the waist portion a like an adult, but rather protrudes, and the femoral portion c of the foot is protruded, resulting in a hip joint. The upper position b (upper side position) has a constricted body shape. As a result, even if the elastic elasticity of the waist elastic members 57, 58,... Is increased, the weight of the disposable diaper increases due to urination and defecation, or the disposable diaper slips easily due to a change in posture or a walking movement. However, there is a problem that the infant feels a feeling of pressure in the abdomen.

The waist elastic members 57, 58
If the elastic stretching force of ... is high, there is a problem that the waist opening must be expanded with a considerable force when peeling the paper diaper, and it is difficult to peel the diaper.

[0009] Therefore, the main object of the present invention is to provide excellent fit, excellent wearing comfort, and low slippage.
Another object of the present invention is to provide a disposable disposable diaper that can be easily sewn.

[0010]

According to the present invention, there is provided a sheet material for a disposable diaper in which an absorbent is interposed between a liquid-permeable top sheet on the body side and a back sheet on the outer surface. In the disposable disposable diaper having a pants-type by folding the front body and the back body so that the front body and the back body overlap with the center part in the longitudinal direction as a folding line position and heat-welding the side edges of the front body and the back body, the front body and In the rear part, the section from the waist opening edge to the upper leg opening is divided into three sections, waist section, upper armpit section and lower armpit section, in order from the waist opening edge, and the width of the disposable diaper for each section. A plurality of elastic elastic members are arranged along the direction, and the elastic elastic force of each of these sections has a relationship of lower armpit section ≧ armpit upper section> waist section.

In this case, the section lengths of the waist section, upper armpit section and lower armpit section are defined as a section from the waist opening edge to substantially the upper edge of the leg opening, as follows: waist section: armpit upper section: armpit lower section = It is desirable that the ratio is distributed in a ratio of 2: 5: 5 to 1: 1: 1. The elastic stretching force of each section is 180-250% for the waist section and 50-200 g for the elastic stretching force, and 200-280% for the waist upper section and 80-280% for the elastic stretching force. Preferably, the stretch ratio is set to 200 to 300% and the elastic stretch force is set to 100 to 350 g in the lower side section.

In the case of such a pants-type disposable paper diaper, the leg elastic elastic member arranged along the periphery of the leg opening is used in order to improve the fit to the body and to surely prevent the paper diaper from slipping down. It can be eliminated. That is, the pants-type disposable disposable diaper paper has three-dimensional gathers on both sides of the diaper and protruding toward the surface over substantially the entire length of the disposable diaper, and at least the disposable diapers on both sides of the disposable disposable diaper along a substantially longitudinal direction of the disposable diaper. In the central portion in the longitudinal direction, it passes through the position inside the rising point of the three-dimensional gather, and by arranging an elastic lifting member for lifting the absorber, the front and rear ends of which are substantially fixed to the absorber mounting area, The conventional elastic elastic member around the leg can be omitted.

[0013]

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

[First Embodiment] FIG. 1 is a partially cutaway development view of a pants-type disposable paper diaper according to the present invention, and FIGS. 2 and 3 are views taken along the line II-II and III-III of FIG. 1, respectively. FIG. In addition, at required portions in the drawing, the bonding site is clearly indicated by the mark x.

As clearly shown in the figure, the pants-type disposable diaper is made of a liquid-permeable topsheet 11 made of non-woven fabric or the like.
And a waterproof film 12 made of polyethylene or the like, the disposable diaper having a structure in which a main body back sheet 20 is integrally provided on an outer surface side of a disposable diaper main body 10 including an absorbent main body 13 made of cotton-like pulp or the like.

The structure of the paper diaper main body 10 and the main body backsheet 20 and the assembly structure thereof will be described below in order. (Structure of the paper diaper main body 10) The absorber main body 13 has a large-area hourglass-shaped upper absorber 13A. And a rectangular lower absorbent body 13B having a slightly smaller area, which are surrounded by crepe papers 13C and 13D and have a semi-rigid property capable of being deformed as a whole. The inside of the lower absorber 13B contains a powdery high molecular absorption polymer. This absorber body 13
The liquid-permeable topsheet 11 is fixed on almost the entire surface with a hot melt adhesive, the waterproof film 12 is fixed on the lower surface of the absorber main body 13 with the hot melt adhesive, and the disposable diaper main body 10 is It is configured. Three-dimensional gathers B ₁ , B ₁ are provided on both sides of the surface of the paper diaper main body 10 by gather sheets 30, 30.

As shown in FIG. 2, the gather sheet 30 is arranged so that the side edges of the paper diaper main body 10, ie, the absorbers 13A and 13B, extend from a position near the side edge of the upper absorber 13A.
Crepe paper 13C, 13D extending outward from the side edge
Beyond the side joints of the liquid-impervious backsheet 12
At the side edge, one end is fixed on the liquid-permeable top sheet 11 with a hot-melt adhesive, and is folded back substantially at the center in the width direction, and the other end is fixed on the upper surface on one end with the hot-melt adhesive. It is fixed by melt adhesive. Inside the double formed gather sheet 30, a plurality of, in the example shown, six upright elastic members 31, 31 ... in the height direction are arranged. The gather sheet 30 includes a disposable diaper body 1.
As shown in FIG. 3, at the front and rear ends of the front sheet 0, the rising end side is folded outward with a predetermined width and bonded by a hot melt adhesive, and the surface from the folding point to the rising point is also a liquid-permeable top sheet 11. Is bonded by a hot melt adhesive.

As a result, in the use state of the product, only the middle portion thereof is a free end, and is raised toward the inside of the product with the contraction force of the elastic elastic members 31, 31,. ₁ . Further, a plurality of elastic elastic members 31, 31,... For erecting are arranged along the height direction of the erect part, so that the erect part has a pleated shape. Side leakage is surely prevented. The gather sheet 30 constituting the three-dimensional gathers B _1, in order to increase as much as possible while preventing the permeation of the body fluid decreases the liquid-permeable, feel of the preventing and skin rash (the dry feeling), silicon It is preferable to use a water-repellent nonwoven fabric coated with a paraffin-based metal, an alkylchromic cloth-based water-repellent, or the like. Further, the elastic elastic member 3
1 and the absorbent elastic member 14 for lifting the absorber described below include styrene-based rubber, olefin-based rubber, urethane-based rubber, ester-based rubber, polyurethane,
Materials such as polyethylene, polystyrene, styrene butadiene, silicon, and polyester can be used.

On the other hand, the waterproof film 12 is provided so as to cover the entire back surface of the paper diaper main body 10. In recent years, as the waterproof film 12, a film having moisture permeability from the viewpoint of preventing stuffiness is suitably used. The water-permeable and moisture-permeable sheet is a microporous sheet obtained by melt-kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene to form a sheet, and then centrifuging uniaxially or biaxially. Yes, if the sheet thickness is the same, the rigidity is lower than that of the non-porous sheet, so that it is superior in flexibility. Incidentally, formation of the standing gathers B ₁ represents, on both sides of paper diaper main body 10 in the present example 1
Although it is provided one by one, it may be provided by two.

(Structure of the main body backsheet 20) The main body backsheet 20 is formed by laminating an inner backsheet nonwoven fabric 22 and an outer backsheet nonwoven fabric 21 with a hot-melt adhesive. In order to form a portion, the outer shape is larger than the paper diaper main body 10 and has a pseudo hourglass shape as a whole.

Between the inner backsheet nonwoven fabric 22 and the outer backsheet nonwoven fabric 21 forming the main body backsheet 20, a disposable diaper is fitted to a wearer and leakage of urine and stool is prevented. The elastic elastic members having various functions are interposed therebetween and are fixed by a hot melt adhesive.

Specifically, in the unfolded shape shown in FIG. 1, the opening of the front body F and the opening of the back body B have:
In the illustrated example, five waist elastic elastic members 23..., 24.
Are provided respectively.

Further, at a position corresponding to the abdomen of the front body F, a plurality of, for example, 11 front body elastic elastic members 25, 2 made of thread rubber are arranged along the width direction of the paper diaper in the illustrated example.
Are provided at the buttocks corresponding to the abdomen-corresponding portions of the back body B, along the width direction of the disposable diaper, a plurality of, for example, 11 rubber back and forth elastic members made of rubber thread in the illustrated example. 27, 27... Are provided. In the front body F, both ends are located at positions corresponding to the abdomen,
A plurality of, in the illustrated example, six elastic elastic members 2 for lifting the front body made of thread rubber having a central portion bulging to the crotch side.
6, 26... Are provided. The front elastic body elastic members 26 may be omitted.

In the disposable disposable diaper according to the present invention, the body flap ES section from the upper end forming the leg opening to the waist edge, the waist section A and the armpit upper section B
, And a lower side section C, the waist section A is provided with the waist elastic elastic members 23,..., 24, and the upper side section B is provided with front body elastic elastic members 25, 25,. And the elastic elastic members 25a, 25a,..., 27a, 2a which are relatively positioned on the upper side of the elastic elastic members 27, 27,.
.. Are assigned to the lower armpit section C, and the front body elastic elastic members 25, 25.
Elastic elastic members 25b, 25b, 27b, 27b, etc., which are located relatively at the lower side, among 7, 27 ... are assigned, and elastic elastic force is made different in each section A to C. That is, the elastic expansion and contraction force of the elastic expansion and contraction members 25b and 27b arranged in the lower armpit section C is relatively largest, and the elastic expansion and contraction members 25a and 27a arranged in the armpit upper section B are relatively large. , And then the elastic stretching force of the waist elastic stretching members 23 arranged in the waist section A is made the weakest. In a formula, each section A
The relationship between the elastic expansion and contraction force for each of C to C is the relationship of the lower armpit section C ≧ the upper armpit section B> the waist section A.

If the section dimensional ratios and the elastic expansion and contraction force of the elastic expansion and contraction members are shown, the section dimensional ratios are obtained by dividing the body flap ES section into the waist section A: upper arm section B: lower arm section C = 2: 5: It is preferable that the allocation is performed at a ratio of 5: 1: 1: 1. In this case, the numerical range of the waist section A is preferably about 20 to 40 mm.

On the other hand, in the waist section A, the elasticity of each section is 180-250% and the elasticity is 50%.
To 200 g, and the stretch ratio in the upper side section B is 200 to 2
80%, the elastic stretching force is 80 to 300 g, and in the lower side section C, the stretching ratio is 200 to 300%, and the elastic stretching force is 100.
Desirably, the weight is 350 g.

As described above, by maximizing the elastic expansion and contraction force applied to the sectioned lower armpit section C, the lower armpit section C is positioned at the most constricted upper part of the hip joint (see FIG. Reference numeral 14) b) The lower part, that is, the femoral part (the reference numeral c in FIG. 14) in which the girth of the waist is gradually expanded, so that the fitting becomes excellent and the disposable diaper is displaced. Falling is reliably prevented. Further, by making the elastic stretching force applied to the waist section A relatively weak, the feeling of pressure given to the infant can be eliminated, and the waist opening can be easily expanded with a small force. It will be easier.

On the other hand, around the leg, one or more, in the example shown, three leg elastic elastic members are provided to seal around the leg. The arrangement mode specifically illustrated is one or a plurality of the illustrated examples, which are arranged continuously from the front body F end around one leg around the crotch portion to the front body F end around the other leg. Then the first elastic elastic member 2 around the three legs
8, 28..., One or a plurality of, three in the illustrated example, continuously arranged from the back body B end of one leg to the crotch portion and to the back body B end of the other leg. Are formed around the legs.

(Assembly of disposable diaper) The disposable diaper main body 10
The main body backsheet 20 is manufactured separately, and the paper diaper main body 10 is adhered to the upper surface side of the main body backsheet 20 with an adhesive S such as hot melt and integrated as shown in FIG. Then, as shown in FIG. 5, the disposable diaper main body 10 and the main body back sheet 20 are provided.
Are folded in the front-rear direction at the folding line L, and both sides thereof are joined to each other by heat welding or a hot-melt adhesive to assemble into a pants-type paper diaper.

[Second Embodiment] Next, a second embodiment shown in FIGS. 6 to 9 is similar to the above-described elastic elastic member 28 around the leg.
..., 29 ... to eliminate, along a substantially longitudinal direction on both sides of the paper diaper of paper diaper main body 10, through the inner position than the standing point of the standing gather B ₁ represents at least diapers longitudinal center portion, and before and after This is a disposable diaper having a structure in which absorber lifting elastic members 14, 14 whose ends are substantially fixed to the region where the absorber main body 13 is provided are arranged. In addition,
The structure of the disposable diaper body 10 and the structure other than the leg elastic members 28, 29, ... are as described in detail in the first embodiment.

The absorbent elastic member 14 for lifting the absorber is
As shown in FIG. 9, when the disposable diaper main body 10 and the main body backsheet 20 are joined, the disposable diaper main body 10
And the main body backsheet 20, the arrangement portion is interposed so as to have the above-described configuration.

This elastic body lifting elastic member 14 is
In plan view, as shown in FIG. 6, a central constricted portion 13a is formed with both sides of the front and rear ends of the hourglass-shaped upper absorbent body 13A constituting the absorbent body main body 13 being relatively wide ends.
Are arranged along the longitudinal direction so as to pass through. Also,
Looking at the arrangement in the cross-sectional view of FIG. 7, it is fixed so as to be interposed between the waterproof film 12 of the paper diaper main body 10 and the backsheet nonwoven fabric 22 for the inner surface of the main body backsheet 20. the positional relation at least diapers longitudinal center of the standing gathers B ₁ is disposed in a position inside than the standing point of the standing gather B _1. It is desirable to arrange the elastic member 14 for lifting the absorber under the conditions that the expansion ratio is approximately 120 to 300% and the elastic expansion strength is 5 to 150 g.

In the illustrated example, the absorbent lifting elastic elastic member 14 is interposed between the paper diaper main body 10 and the main body backsheet 20, but the inside of the paper diaper main body 10, for example, crepe paper 13D. And between the crepe paper 13C and the crepe paper 13D. Also,
In this example, one elastic expansion member is arranged, but a plurality of elastic members may be arranged. However, the absorbent main body 13 is provided by the absorbent elastic elastic members 14, 14.
In order to keep it from hanging down,
Front and rear end portions (fixed points) of the elastic elastic member 14 for lifting the absorber
It is desirable that the absorbent body is held in such a state that it is not displaced so much. Both ends of the elastic body lifting elastic member 14 need to be fixed to the area where the absorbent body 13 is provided.

In the case of such a disposable paper diaper, when the disposable disposable diaper is in the mounted state, the elastic elastic member 14 for lifting the absorbent body,
14 are disposed on both sides within the disposition range of the disposable diaper main body 10 so as to extend from the front body to the rear body via the base of the leg. The function can be sufficiently performed as a substitute elastic elastic member. In other words, since the absorber elastic elastic members 14, 14 have upper and lower ends of the absorber as fixed points, the condition is that the absorber itself is held at a predetermined position without slipping down. By maximizing the elastic stretching force applied to the lower armpit section C, slippage of the disposable diaper is reliably prevented, and even if there is no leg elastic elastic member due to the cooperative action of these,
No gap is formed between the crotch portion and the standing gathers B ₁ is so side leakage can be prevented reliably because not away from the skin.

Conversely, the elimination of the elastic elastic members around the legs makes it possible to eliminate the trace of the rubber, and at the same time, it is possible to simultaneously prevent the absorber from being stiffened and contracted by the contraction force of the rubber. . In addition, the feeling of stickiness is eliminated, and the feeling of wearing is improved, and the situation in which urine leaks out of grooves or wrinkles caused by the contraction of the absorber can be prevented. Furthermore, the appearance can be improved by eliminating the elastic elastic member that crosses the crotch portion.

By the way, there are various examples of the arrangement of the elastic body lifting elastic member 14. The arrangement mode shown in FIG. 10 is an example in which the crotch region is arranged in an arc shape along the leg circumference in the constricted portion 13a region, and the front and rear end portions are arranged to be fixed in the arrangement region of the upper absorber 13A. The arrangement shown in FIG. 11 is an example in which the inside of the upper absorber 13A is arranged in an arc along the shape of the constricted portion 13a at the side edge thereof. In the arrangements shown in FIGS. 10 and 11, a force directed outward (outward in the width direction) acts on the absorber main body 13 by the absorber elastic elastic members 14, 14 arranged in an arc shape. Therefore, the absorbent body 13 that has absorbed urine
Can be prevented from gathering in a bundle at the center at the same time.

By the way, in the first embodiment and the second embodiment, the elastic elastic members are arranged over the entire width of the front body and the back body. However, as shown in FIG.
In order to release the feeling of pressure on the abdomen, it is also possible to eliminate the elastic expansion and contraction member in the intermediate portion between the front body and the rear body, and to dispose the elastic expansion and contraction member only on both sides. Also, in the illustrated example, the elastic member is removed from the middle part on both the front body and the back body, but the elastic member may be removed from the middle part only on the front body side.

[0038]

As described in detail above, according to the present invention, a pants-type disposable paper diaper which is excellent in fitting property, excellent in wearing comfort, hard to slip off, and can be easily applied can be obtained. .

[Brief description of the drawings]

FIG. 1 is a developed view of a pants-type disposable paper diaper according to a first embodiment of the present invention.

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

FIG. 3 is a view taken along line III-III in FIG. 1;

FIG. 4 is a perspective view showing how to assemble the main body backsheet 20 and the disposable diaper main body 10;

FIG. 5 is a perspective view of a product state of the pants-type disposable paper diaper.

FIG. 6 is a development view of the pants-type disposable paper diaper according to the second embodiment of the present invention.

FIG. 7 is a view taken along line VII-VII of FIG. 6;

FIG. 8 is a view taken along line VIII-VIII in FIG. 6;

FIG. 9 is a perspective view showing how to assemble the main body backsheet 20 and the disposable diaper main body 10;

FIG. 10 is a plan view of the disposable diaper main body 10 showing a modified example of the arrangement of the elastic lifting member 14 for lifting the absorber.

FIG. 11 is a plan view of the disposable diaper main body 10 showing another modification of the arrangement of the elastic body 14 for lifting the absorbent body.

FIG. 12 is a modified example of the arrangement of the front body elastic elastic member and the rear body elastic elastic member.

FIG. 13 is a development view of a conventional pants-type disposable paper diaper.

FIG. 14 is a waist perspective view showing the infant body shape.

[Explanation of symbols]

 10: disposable diaper body, 11: liquid-permeable topsheet, 12
... Waterproof film, 13 ... Absorber body, 13A ... Upside absorption
Body, 13B: Lower absorber, 13C / 13D: Crepe
Paper, 14 ... Elastic elastic member for lifting the absorber, 20 ... Body
Back sheet, 21 ... non-woven backsheet for outer surface, 22 ...
Backsheet non-woven fabric for inner surface, 23/24 ... waist elastic stretch
Shrinking member, 25 ... front body elastic elastic member, 26 ... front body holding
Elastic elastic member for raising, 27 ... Elastic elastic member for back body, 28
… The first elastic elastic member around the leg, 29… the second elastic elastic member around the leg
Member, 30 Gather sheet, 31 Elastic elastic part for standing up
Lumber, B ₁... three-dimensional gather, A ... waist section, B ... armpit upper section
Between, C ... lower armpit section, ES: body flap

Claims (4)

[Claims] 1. A disposable diaper-constituting sheet material in which an absorber is interposed between a liquid-permeable topsheet on the body side and a backsheet on the outer surface, and a front body and a back body with a longitudinal center portion as a folding line position. In a disposable disposable diaper that has been folded so that it overlaps and is heat-sealed on both side edges of the front body and the rear body, the front body and the rear body part have a leg opening upper edge substantially from a waist opening edge. The section up to and from the waist opening edge side is divided into three sections, a waist section, an upper armpit section, and a lower armpit section, and a plurality of elastic elastic members are arranged along the paper diaper width direction for each section, A pants-type disposable disposable diaper, characterized in that the elastic expansion and contraction force of each of these sections has a relationship of lower side section ≧ side upper section> waist section. 2. The section length of the waist section, upper armpit section and lower armpit section is defined as a section from the waist opening edge to substantially the upper edge of the leg opening, waist section: armpit upper section: armpit lower section =
2. The distribution according to claim 1, wherein the distribution is in a ratio of 2: 5: 5 to 1: 1: 1.
The pants-type disposable paper diaper described. 3. The waist section has an expansion / contraction ratio of 180 to 250.
%, The elastic stretching force is 50 to 200 g, and the stretching ratio is 200 to 280% and the elastic stretching force is 80 to 3 in the upper armpit section.
00g, and the expansion and contraction rate is 200 to 30 in the lower armpit section.
The pants-type disposable paper diaper according to any one of claims 1 and 2, wherein the elasticity is 0% and the elastic stretching force is 100 to 350 g. 4. The underpants-type disposable diaper paper has three-dimensional gathers on both sides of the diaper, the projections protruding to the surface side over substantially the entire length of the diaper, and the both sides of the disposable diaper substantially along the longitudinal direction of the diaper. At least at the central portion in the longitudinal direction of the disposable diaper, an elastic member for lifting the absorber is disposed, which passes through a position inside the rising point of the three-dimensional gather and whose front and rear ends are substantially fixed to the absorber arrangement region. The disposable paper diaper according to any one of claims 1 to 3, wherein