JP2007098161A - Underwear type disposable diaper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an underwear type disposable diaper which is excellent in fit, which feels good to wear and which hardly slips down. <P>SOLUTION: In the disposable diaper obtained by folding a disposable diaper constitution sheet material having an absorber 13 interposed between a liquid-permeable top sheet on a body side and a main body back sheet 20 covering an outer surface side so as to overlap a front section and a back section with a center part in a longitudinal direction as the position of a folding line and thermally melting and fitting both-side edges of the front section and the back section to form the underwear type, in the front section and the back section, body flap ES sections from the edge of a waist opening to nearly the upper edge of a leg opening are divided into three sections of a waist part section A, a side upper part section B and a side lower section C in order from the edge of the waist opening respectively, a plurality of elastic extensible members 23, 24, 25 and 27 are arranged along the width direction of the disposable diaper by each section, and elastic extension and contraction forces of each of the sections satisfy a relation of the side lower section C ≥ the side upper part section B > the waist part section A. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a pants-type disposable paper diaper that is easy to wear, has excellent fit, and hardly slides down.

  Conventionally, underwear disposable diapers are marketed together with tape-type disposable paper diapers for the purpose of facilitating diaper separation or freeing adults from wearing work with fastening tape each time and simplifying wearing. Has been provided to.

  The present applicant has also proposed a pants-type disposable paper diaper in JP-A-10-127687 and JP-A-11-128267. If the pants-type disposable paper diaper proposed in the former Japanese Patent Laid-Open No. 10-127687 is described as an example, the pants-type disposable paper diaper includes a liquid-permeable top sheet 52, polyethylene and the like as shown in FIG. The main body back sheet | seat 51 is provided in the outer surface side of the paper diaper main body 50 which consists of the waterproof film 53 which consists of this, and the absorber 54 interposed between these both sheets.

  The main body back sheet 51 has a two-layer structure of a front surface back sheet 55 and a back surface back sheet 56, and between the two sheets 55 and 56, a waist elastic elastic member for sealing a waist opening of a paper diaper. .., 58... Are disposed, and the abdomen elastic stretching member 59,. ..., and a leg-surrounding first elastic expansion / contraction member 61 for sealing the leg periphery and a leg-surrounding second elastic expansion / contraction member 62, ... are provided. The first elastic elastic member 61 around the leg includes one or more elastic members arranged continuously from the front body F end around one leg to the front body F end around the other leg around the crotch. The leg elastic second elastic elastic members 62,... Are arranged continuously from the rear body B end around one leg to the crotch part and to the rear body B end around the other leg. One or a plurality of elastic elastic members. In the crotch portion of the paper diaper, the first elastic elastic members 61, ... and the second elastic elastic members 62, ... are arranged along the width direction of the paper diaper while approaching without intersecting.

  The paper diaper main body 50 is integrally bonded and fixed to the front surface backsheet 55 of the main body backsheet 51 by a hot melt adhesive on the outer surface side of the waterproof film 53. The above-mentioned paper diaper is formed into a pants shape by overlapping the front body F and the back body B on the folding line L at the substantially center, and joining both side edges by a welding method such as ultrasonic welding.

  However, in the case of the pants-type disposable paper diaper, the elastic elastic force of the waist elastic elastic members 57, 58... Is relatively increased, and the abdominal elastic elastic members 59, 59. For 60..., The entire area of the arrangement area, that is, the section from the waist opening edge to the upper edge of the leg opening, is arranged with a uniform elastic stretching force in the width direction of the disposable diaper. There was a problem that the feeling of wearing was not necessarily good.

  That is, as shown in FIG. 14, the body shape of the infant is not a constricted waist portion a like an adult, but rather is bulged, and the femoral portion c of the foot swells, resulting in an upper hip joint position b. (Side upper part position) has a constricted figure. As a result, even if the elastic elastic force of the waist elastic elastic members 57, 58... Is increased, the weight of the paper diaper increases due to urination or defecation, or the paper diaper is easily dropped due to a posture change or walking exercise. There were problems such as infants feeling pressure on their abdomen.

  Further, if the elastic elastic force of the waist elastic elastic members 57, 58,... Is high, the waist opening must be expanded with a considerable force when the paper diaper is peeled, and there is a problem that it is difficult to peel off.

  SUMMARY OF THE INVENTION Accordingly, a main object of the present invention is to provide a pants-type disposable paper diaper that is excellent in fit, excellent in comfort, hard to slip off, and can be easily used.

In order to solve the above-mentioned problem, as the present invention according to claim 1, a sheet material comprising a disposable diaper, in which an absorbent body is interposed between a liquid-permeable top sheet on the body side and a back sheet on the outer surface side, is provided in the center in the longitudinal direction. In a disposable paper diaper that is folded as a folding line position so that the front body and the back body overlap, and the both side edges of the front body and the back body are heat-sealed,
In the front body part and the back body part, the section from the waist opening edge to the upper leg edge portion is divided into three sections, a waist section, a side upper section and a side section, in order from the waist opening edge side, and each section A plurality of elastic elastic members are arranged along the width direction of the disposable diaper every time, and the elastic expansion and contraction force for each of these sections is in the relationship of armpit section ≧ armpit section> waist section A disposable paper diaper is provided.

  According to the second aspect of the present invention, the lengths of the waist section, the side upper section, and the side lower section are defined as a section from the waist opening edge to the upper leg opening substantially, a waist section: a side upper section: a side lower section. The underpants-type disposable paper diaper according to claim 1, which is distributed at a ratio of section = 2: 5: 5 to 1: 1: 1.

  As an aspect of the present invention according to claim 3, there is provided an elastic lifting member for lifting an absorbent body arranged linearly along the substantially longitudinal direction of the disposable diaper or in an arc shape in a developed view so as to follow the leg circumference. The front and rear ends of the elastic lifting member for lifting the absorber arranged in a straight line or in an arc shape in a developed view along the circumference of the leg are fixed to the absorber arrangement region. A pants-type disposable paper diaper according to any one of 1 and 2 is provided.

  According to a fourth aspect of the present invention, the absorbent body has a substantially hourglass shape having a constricted portion on both sides of the intermediate region, and the elastic lifting member for lifting the absorbent body passes through the constricted portion in the intermediate portion, and has front and rear ends. The underpants-type disposable paper diaper according to claim 3, wherein the portions are respectively fixed to the front and rear end portions of the absorber.

  As the present invention according to claim 5, there is provided the disposable paper diaper according to any one of claims 3 and 4, wherein the elastic elastic member for lifting the absorbent body is arranged in an arc shape in a developed view so as to follow the leg circumference. .

  According to a sixth aspect of the present invention, the absorbent body has a substantially hourglass shape having a constricted portion in the intermediate both side regions, and the elastic lifting member for lifting the absorbent body is absorbent along the constricted portion in a developed view. The underpants-type disposable paper diaper according to claim 3, which is disposed in the inner region.

  As one aspect of the present invention according to claim 7, one end of the elastic lifting member for lifting the absorbent body is the most inseam among the plurality of front body elastic stretching members disposed along the width direction of the paper diaper on the front body. The other end of the elastic elastic member for lifting the absorbent body extends beyond the elastic elastic member. A pants-type disposable paper diaper according to any one of claims 3 to 6, wherein the pants-type disposable paper diaper extends beyond the elastic elastic member on the side.

  In the case of the pants-type disposable paper diaper according to any one of claims 3 to 7, since the fit to the body is improved and the sliding of the paper diaper is surely prevented, the leg circumference arranged around the leg opening The elastic elastic member can be eliminated.

  As described above in detail, according to the present invention, it is possible to provide a pants-type disposable paper diaper that is excellent in fit, comfortable in wear, hard to slip down, and can be easily used.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[First embodiment]
FIG. 1 is a partially broken development view of a pants-type disposable paper diaper according to the present invention, and FIGS. 2 and 3 are views taken along arrows II-II and III-III in FIG. 1, respectively. In addition, in the required location of drawing, the adhesion | attachment site | part is clearly indicated by x mark.

  As clearly shown in the figure, this pant-type paper diaper has a structure including an absorbent body 13 made of cotton-like pulp or the like by a liquid-permeable top sheet 11 made of nonwoven fabric or the like and a waterproof film 12 made of polyethylene or the like. This paper diaper has a structure in which a main body back sheet 20 is integrally provided on the outer surface side of the main body 10 of the paper diaper.

Hereinafter, the structure of the paper diaper main body 10 and the main body back sheet 20 and the assembly structure thereof will be described in order.
(Structure of the disposable diaper body 10)
The absorbent body 13 includes an hourglass-shaped upper absorbent body 13A having a wide area and a rectangular lower absorbent body 13B having a slightly narrow area, which are surrounded by crepe paper 13C and 13D, and are deformed as a whole. It has a semi-rigid property, and a powdery polymer absorbing polymer is contained inside the upper absorbent body 13A and the lower absorbent body 13B. The liquid-permeable top sheet 11 is fixed to the upper surface of the absorbent body 13 by a hot melt adhesive on almost the entire surface, and the waterproof film 12 is also fixed to the lower surface of the absorbent body 13 by the hot melt adhesive. A paper diaper main body 10 is configured.

Three-dimensional gathers B ₁ and B ₁ are provided by gather sheets 30 and 30 on both sides of the surface of the paper diaper main body 10.

  As shown in FIG. 2, the gather sheet 30 extends outward from the side edge of the upper absorbent body 13A near the side edge of the disposable diaper main body 10, that is, the side edges of the absorbent bodies 13A and 13B. One end of the crepe paper 13C, 13D is fixed to the liquid-permeable top sheet 11 by a hot melt adhesive at the side edge of the liquid-impervious backsheet 12 beyond the side joints of the crepe papers 13C and 13D. The other end is folded and fixed to the upper surface of the one end side fixed by the hot melt adhesive. In the gather sheet 30 formed in a double manner, a plurality of standing elastic elastic members 31, 31,... In the illustrated example are arranged in the height direction. As shown in FIG. 3, the gather sheet 30 is folded at the front and rear ends of the disposable diaper main body 10 to the outside with a predetermined width and adhered by a hot melt adhesive, and from the turn-up point to the stand-up point. The surface is also bonded to the liquid-permeable top sheet 11 with a hot melt adhesive.

Consequently, configured in a use state of the product, only the middle portion as a free end, the standing elastic stretchable members 31, 31 with the shrinkage force standing toward the inside of the product standing gathers B ₁ It is supposed to be. In addition, since the plurality of standing elastic elastic members 31, 31... Are arranged along the height direction of the standing part and the standing part is formed in a pleated shape, the degree of adhesion to the skin is improved. 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 desirable to use a water-repellent treated non-woven fabric coated with a paraffin metal-based or alkyl chromic water-based water repellent. Also, as the elastic elastic member 31 and the elastic elastic member 14 for lifting the absorber described later, styrene rubber, olefin rubber, urethane rubber, ester rubber, polyurethane, polyethylene, polystyrene, styrene butadiene, Materials such as silicon and polyester can be used.

On the other hand, the said waterproof film 12 is provided in the aspect which covers the back surface whole surface of the paper diaper main body 10. FIG. In recent years, a film having moisture permeability is preferably used as the waterproof film 12 in terms of preventing stuffiness. This water-impervious and moisture-permeable sheet is a microporous sheet obtained by, for example, melt-kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene to form a sheet, and then centrifuging in a uniaxial or biaxial direction. If the sheet thickness is the same, the rigidity is lower than that of the non-porous sheet, and this is superior in terms of flexibility. Incidentally, formation of the standing gathers B ₁ represents, is provided respectively Article 1 by one on both sides of paper diaper main body 10 in this example may be provided Article 2 increments.

(Structure of the main body back sheet 20)
The main body backsheet 20 is formed by laminating the backsheet nonwoven fabric 22 for the inner surface and the backsheet nonwoven fabric 21 for the outer surface with a hot melt adhesive, and from the paper diaper main body 10 so as to form a flap portion on the front and rear end sides thereof. The outer shape is large, and it has a pseudo hourglass shape as a whole.

  Various functions are provided between the inner backsheet nonwoven fabric 22 and the outer backsheet nonwoven fabric 21 constituting the main body backsheet 20 in order to fit a paper diaper to the wearer and prevent leakage of urine and feces. These elastic elastic members are interposed and fixed by a hot melt adhesive.

  Specifically, in the developed shape shown in FIG. 1, in the illustrated example, five waist elastic elastic members 23, 24, respectively, are provided in the opening of the front body F and the opening of the back body B, respectively. It has been.

  Further, in the portion corresponding to the abdomen of the front body F, there are provided a plurality of elastic body members 25, 25,. A plurality of, for example, 11 back body elastic elastic members 27, 27... Made of thread rubber, for example, are provided along the width direction of the paper diaper at the buttock portion corresponding to the abdominal portion corresponding to B. . Further, the front body F has a plurality of elastic elastic members for lifting the front body in the illustrated example. Members 26, 26... Are provided. The front body lifting elastic elastic members 26, 26... May be omitted.

  In the disposable paper diaper according to the present invention, the body flap ES section is divided into a waist section A, a side upper section B, and a side lower section C from the upper end forming the leg opening to the waist edge, In the waist section A, the waist elastic stretch members 23, 24,... Are arranged, and in the side upper section B, the front elastic elastic members 25, 25, and the back elastic members 27, 27. The elastic elastic members 25a, 25a, 27a, 27a,... Located relatively on the upper side are assigned, and the lower body section C has the front elastic elastic members 25, 25 ... and the elastic elastic members 27, 27 of the rear body. ..., elastic elastic members 25b, 25b ..., 27b, 27b ..., which are relatively positioned on the lower side, are assigned, and the elastic expansion / contraction forces are different in the respective sections A to C. That is, the elastic expansion / contraction force by the elastic expansion / contraction members 25b, 27b,... Arranged in the armpit lower section C is relatively maximized, and the elastic expansion / contraction members 25a,. Next, the elastic expansion / contraction force by... Is increased, and the elastic expansion / contraction force by the waist elastic elastic members 23, 24,. If it shows by a type | formula, the relationship of the elastic expansion-contraction force for each said area AC is set as the relationship of the armpit section C> = armpit section B> waist part A. FIG.

  If each section size ratio and the elastic expansion / contraction force by the elastic elastic member group are shown, the above-mentioned section size ratio is determined as follows: waist flap ES section, waist section A: armpit section B: armpit section C = 2: 5: 5-1 It is better to allocate at a ratio of 1: 1. In this case, the numerical range of the waist section A is preferably about 20 to 40 mm.

  On the other hand, the elastic stretch force of each section is 180-250% in the waist section A and 50-200 g in the elastic stretch force, and the stretch ratio is 200-280% in the upper section B, and the elastic stretch force is 80. It is desirable that the stretching ratio is 200 to 300% and the elastic stretching force is 100 to 350 g in the armpit and lower section C.

  As described above, by maximizing the elastic expansion and contraction force applied to the divided armpit lower section C, the portion of the armpit section C is the most constricted hip joint upper position (reference numeral in FIG. 14). b) Since it fits strongly to the lower part, that is, the femur part (symbol c in FIG. 14) in which the circumference of the waist is gradually enlarged, the wearing feeling is improved and the slippage of the disposable diaper is surely ensured. Will be prevented. Also, by making the elastic stretch force applied to the waist section A relatively weak, the feeling of pressure applied to the infant can be eliminated, and the waist opening can be easily expanded with a small force. It becomes easy.

  On the other hand, around the leg, one or a plurality of elastic elastic members around the leg, in the illustrated example, are provided to seal around the leg. Specifically, the arrangement mode illustrated is one or a plurality of illustrated examples continuously arranged from the front body F end around one leg to the front body F end around the other leg around the crotch. The first elastic elastic members 28, 28,... Around the three legs, and the rear body B end around one leg, the crotch portion, and the rear leg B end around the other leg 1 are continuously arranged. Alternatively, it is composed of a plurality of second leg elastic second elastic members 29, 29... In the illustrated example.

(Assembling paper diapers)
The paper diaper main body 10 and the main body back sheet 20 are separately manufactured. As shown in FIG. 4, the paper diaper main body 10 is bonded and integrated on the upper surface side of the main body back sheet 20 with an adhesive S such as hot melt. . And as FIG. 5 shows, the paper diaper main body 10 and the main body back sheet | seat 20 are folded in the front-back direction in the folding | turning line L, and the both sides are mutually joined by heat welding or a hot-melt-adhesive etc. Is assembled into a pants-type paper diaper.

[Second embodiment]
Next, in the second embodiment shown in FIG. 6 to FIG. 9, at least the paper diaper is disposed along the substantially longitudinal direction of the paper diaper on both sides of the paper diaper main body 10 by eliminating the elastic elastic members 28, 29. longitudinal through an inner position than the standing point of the standing gather B ₁ represents the central portion, and the front and rear ends substantially absorbent body 13 elastically lifting fixed absorber arrangement region elastic member 14, 14 is a paper diaper having a structure in which 14 is arranged. The structure of the paper diaper main body 10 and the structure other than the leg elastic elastic members 28, 29, etc. are as described in detail in the first embodiment.

  As shown in FIG. 9, the elastic lifting member 14 for lifting the absorbent body is disposed between the paper diaper main body 10 and the main body back sheet 20 when the paper diaper main body 10 and the main body back sheet 20 are joined. The installation site is interposed so as to have the above-described configuration.

As shown in FIG. 6 in plan view, the elastic lifting member 14 for lifting the absorbent body has both sides relatively wide at the front and rear ends of the hourglass-shaped upper absorbent body 13A constituting the absorbent body 13. Is disposed along the longitudinal direction so as to pass through the central constricted portion 13a. Moreover, when the arrangement | positioning aspect is seen in the cross-sectional view of FIG. 7, it is fixed so that it may be interposed between the waterproof film 12 of the said paper diaper main body 10, and the backsheet nonwoven fabric 22 for the inner surfaces of the said main body backsheet 20. the in 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 that the elastic lifting member 14 for lifting the absorbent body is disposed under the condition that the expansion / contraction rate is approximately 120 to 300% and the elastic expansion / contraction strength is 5 to 150 g.

  By the way, although the elastic lifting member 14 for lifting the absorber is interposed between the paper diaper main body 10 and the main body back sheet 20 in the illustrated example, the inside of the paper diaper main body 10, for example, the crepe paper 13D and the waterproof film. 12 or between the crepe paper 13C and the crepe paper 13D. In this example, one elastic elastic member is arranged, but a plurality of elastic members may be arranged. However, in order to hold the absorbent body 13 tightly by the elastic lifting members 14 and 14 for lifting the absorbent body, the front and rear ends (fixed points) of the elastic lifting member 14 for lifting the absorbent body are tight. It is desirable that the elastic body is held in a state where it does not shift so much that both ends of the elastic lifting member 14 for lifting the absorbent body need to be fixed to the region where the absorbent body 13 is disposed.

In the case of such disposable paper diapers, the elastic lifting members 14, 14 for lifting the absorbent body reach the back body from the front body to the back body at the both sides within the arrangement range of the paper diaper body 10 in the mounted state. However, even in such an arrangement mode, the function can be sufficiently achieved as an elastic elastic member that replaces the elastic elastic member around the legs. That is, the elastic lifting members 14 and 14 for lifting the absorbent body have the upper and lower ends of the absorbent body as a fixed point, and therefore it is a condition that the absorbent body itself is held at a predetermined position without being slipped off. By maximizing the elastic expansion / contraction force applied to the armpit section C, slipping of the disposable diaper is surely prevented, and even if there is no elastic expansion / contraction member around the legs due to these cooperative actions, no gap is formed between, and the standing gathers B ₁ is so side leakage can be surely prevented because not away from the skin.

  On the contrary, by eliminating the elastic elastic members around the legs, it becomes possible to eliminate the marks due to the rubber, and it is possible to simultaneously prevent stiffening and shrinkage of the absorber due to the contraction force of the rubber. In addition, the feeling of wearing is eliminated and the wearing feeling is improved, and it is possible to prevent a situation such as leakage of urine from a groove or a wrinkle caused by shrinkage of the absorber. Further, the appearance can be improved by eliminating the elastic elastic member that crosses the crotch portion.

  By the way, various examples can be given as an arrangement mode of the elastic lifting member 14 for lifting the absorber. 10 is an example in which the crotch region is arranged in an arc shape along the leg in the constricted portion 13a region, and the front and rear end portions are fixed in the arrangement region of the upper absorbent body 13A. 11 is an example in which the arrangement is shown in the upper absorbent body 13A and arranged in an arc shape along the shape of the constricted portion 13a at the side edge thereof. In the arrangement modes shown in FIGS. 10 and 11, a force directed outward (in the width direction outward direction) acts on the absorbent body 13 by the elastic lifting members 14 and 14 for lifting the absorbent body arranged in an arc shape. Therefore, it is possible to simultaneously prevent the absorbent body 13 that has absorbed urine from being collected in a bundle at the center.

  By the way, in the said 1st form example and the 2nd form example, although the elastic expansion-contraction member was arrange | positioned over the full width of a front body and a back body, as shown in FIG. 12, it releases from the feeling of pressure with respect to an abdomen. For this reason, it is also possible to eliminate the elastic stretchable member in the middle part between the front body and the back body, and to dispose the elastic stretchable member only on both sides. Further, in the illustrated example, the elastic stretchable member is eliminated from the intermediate portion on both the front body and the back body, but the elastic stretchable member may be eliminated from the intermediate portion only on the front body side.

It is an expanded view of this invention underpants type disposable paper diaper in a 1st form example. It is the II-II arrow directional view of FIG. It is the III-III arrow directional view of FIG. FIG. 3 is an assembly perspective view of a main body back sheet 20 and a paper diaper main body 10. It is a product state perspective view of this underpants type disposable paper diaper. It is an expanded view of this invention underpants type disposable paper diaper in a 2nd form example. It is a VII-VII arrow line view of FIG. It is a VIII-VIII arrow directional view of FIG. FIG. 3 is an assembly perspective view of a main body back sheet 20 and a paper diaper main body 10. It is a top view of the paper diaper main body 10 which shows the arrangement example modification of the elastic elastic member 14 for absorber lifting. It is a top view of the disposable diaper main body 10 which shows the other arrangement | positioning aspect modification of the elastic elastic member 14 for absorber lifting. It is a modification figure of the arrangement | positioning aspect of a front body elastic elastic member and a back body elastic elastic member. It is an expanded view of the conventional pants-type disposable paper diaper. It is a waist perspective view showing an infant form.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Paper diaper main body, 11 ... Liquid-permeable top sheet, 12 ... Waterproof film, 13 ... Absorber main body, 13A ... Upper side absorber, 13B ... Lower side absorber, 13C * 13D ... Crepe paper, 14 ... Absorber lifting Elastic elastic member, 20 ... back sheet of main body, 21 ... back sheet nonwoven fabric for outer surface, 22 ... back sheet nonwoven fabric for inner surface, 23, 24 ... elastic elastic member around waist, 25 ... front body elastic elastic member, 26 ... for lifting front body resilient and elastic members, 27 ... back body resilient and elastic members, 28 ... leg first elastic stretchable member, 29 ... leg second resilient and elastic members, 30 ... gather sheet 31 ... standing for resilient and elastic members, B 1 _... standing gathers , A ... waist section, B ... side upper section, C ... side lower section, ES ... body flap

Claims (7)

Fold a diaper-constituting sheet with an absorbent body between the liquid-permeable top sheet on the body side and the back sheet on the outer side so that the front and back bodies overlap each other with the longitudinal center in the fold line position. In the disposable paper diaper made into a pants type by heat-welding both side edges of the front body and the back body,
In the front body part and the back body part, the section from the waist opening edge to the upper leg edge portion is divided into three sections, a waist section, a side upper section and a side section, in order from the waist opening edge side, and each section A plurality of elastic elastic members are arranged along the width direction of the disposable diaper every time, and the elastic expansion and contraction force for each of these sections is in the relationship of armpit section ≧ armpit section> waist section Disposable paper diapers.   The section lengths of the waist section, the upper side section, and the lower section are the sections from the waist opening edge to the upper edge of the leg opening, and the waist section: the upper section section: the lower section section = 2: 5: 5 to 1. The pants-type disposable paper diaper according to claim 1, which is distributed at a ratio of 1: 1.   The elastic elastic members for lifting the absorbent body arranged in a straight line along the substantially longitudinal direction of the disposable diaper or in an arc shape in a developed view so as to follow the leg circumference are disposed on both sides of the disposable paper diaper, and the linear or The pants according to any one of claims 1 and 2, wherein front and rear ends of the elastic lifting member for lifting the absorber arranged in an arc shape along the leg circumference are fixed to the absorber arrangement region. Type disposable paper diapers.   The absorber has a substantially hourglass shape having a constricted portion on both sides of the middle region, and the elastic lifting member for lifting the absorber passes through the constricted portion in the middle portion, and the front and rear end portions are on the front and rear end side portions of the absorber. The underpants-type disposable paper diaper according to claim 3, which is fixed respectively.   The disposable paper diaper according to claim 3, wherein the elastic lifting member for lifting the absorbent body is arranged in an arc shape in a developed view so as to extend around a leg.   The absorbent body has a substantially hourglass shape having a constricted portion on both sides of the middle region, and the elastic lifting member for lifting the absorbent body is disposed in an inner region of the absorbent body along the constricted portion in a developed view. Item 3. A pants-type disposable paper diaper according to item 3.   One end of the elastic lifting member for lifting the absorbent body extends beyond the most elastic elastic member on the crotch side among a plurality of front body elastic elastic members arranged along the width direction of the disposable diaper on the front body. The other end of the elastic lifting member for lifting the absorbent body extends beyond the most elastic crotch member among the plurality of back elastic members arranged along the width of the disposable diaper in the back body. The pants-type disposable paper diaper according to claim 3, wherein the pants-type disposable paper diaper is present.

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