JP4039219B2 - Pants-type diapers - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disposable diaper that is formed in a pants shape in advance.
[0002]
[Prior art]
Conventionally, as a manufacturing method of a pants-type diaper, the position of the crotch from the position of one side edge on each of the front body side and the back body side of the continuous base sheet for forming the pants is changed. A manufacturing method is known in which a first stretchable elastic member and a second stretchable elastic member made up of a plurality of stretchable elastic bodies reaching the position of the other side edge portion are disposed to form a leg-around stretchable elastic member ( For example, Patent Document 1). Such a so-called lateral flow manufacturing method is widely used because it is possible to attach the elastic elastic member around the legs and the elastic elastic member around the waist at the same time, and the manufacturing efficiency is good.
However, in the diaper manufactured by the cross flow manufacturing method, the elastic elastic member crosses the region where the absorbent body of the crotch part is disposed, so that the absorbent body contracts and the feeling of wearing becomes worse, and further, the excrement is diffused. This hinders the absorption efficiency of the absorber and may cause leakage.
[0003]
In order to solve such problems of the lateral flow manufacturing method, a web in which a stretchable elastic member is arranged between two sheets is composed of a first roll in which a plurality of convex portions are arranged and a second roll facing the first roll. A method of cutting a stretchable elastic member by passing between roll cutters and heating and pressurizing (Patent Document 2), or placing a stretchable elastic member on a base sheet having an adhesive portion and a non-adhesive portion, and then non- There has been proposed a manufacturing method of a pants-type diaper that cuts the elastic elastic member around the leg in the crotch region by a method such as a method of pressure-cutting the elastic elastic member at the bonding portion (Patent Document 3). However, all of these methods have a problem that the appearance of the diaper is deteriorated because the cut pieces of the elastic elastic member remain in an indefinite shape or are bent.
Furthermore, since the base sheet is also cut when the elastic elastic member is cut, the opening produced in the base sheet due to the cutting is widened when the diaper is manufactured or worn, and the strength of the diaper is reduced. is doing. In general, since the elastic elastic member is cut at a portion of the base sheet where no adhesive is present, the opening is likely to spread, and the strength of the base sheet is likely to be reduced.
[0004]
[Patent Document 1]
JP-A-3-33201 [Patent Document 2]
JP 2002-35029 A [Patent Document 3]
Japanese Patent Laid-Open No. 2000-26015
[Problems to be solved by the invention]
The present invention overcomes the problems of the conventional pants-type use diapers described above, and provides a pants-type use diaper that has a good product appearance, no reduction in strength, excellent wear feeling, and no leakage. Is.
[0006]
[Means for Solving the Problems]
The present invention that has solved the above problems includes the following inventions.
[0007]
(1) Absorbent body composed of a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the two sheets, and the absorbent body are joined together and absorbed by the wearer. An exterior member that holds and holds the sexual main body, and joins the opposite side edges of the front body and the back body of the exterior member to form an opening around the waist and a pair of legs around the opening, In the pants-type diapers where stretchable elastic members are arranged along,
The exterior member is composed of two sheets, and between the two sheets of the front body side exterior member is composed of a plurality of elastic elastic members extending from one side edge part to the other side edge part through the crotch part. A first stretchable elastic member is disposed, and at least a part of the first stretchable elastic member is bonded and fixed by an adhesive applied to both opposing surfaces of the two sheets along the opening around the leg, and the stretchable elasticity around the leg Forming a member,
Between the two sheets of the exterior member on the back body side, a second elastic elastic member made of a plurality of elastic elastic members from one side edge part to the other side edge part through the crotch part is disposed, At least a part of them is bonded and fixed by an adhesive applied to both of the opposing surfaces of the two sheets along the leg opening to form an elastic member around the leg,
The other portions of the first elastic elastic member and the second elastic elastic member are sandwiched between the two sheets in the crotch region by an adhesive applied only to one inner surface of the two sheets of the exterior member. At least in the crotch region in a contracted state while being peeled off along the trajectory arranged between the two sheets by being cut at the center of the crotch region from the state of being weakly bonded and arranged in the stretched state A pants-type diaper characterized by being arranged in a discontinuous state at the center and being bonded between two sheets of the exterior member in the crotch region.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The pants-type use diaper of the present invention comprises an absorbent main body for absorbing excrement and an exterior member for holding the absorbent main body against the wearer, the exterior member is composed of two sheets, and the front body On the side and the back body side, between the two sheets, a first elastic elastic member and a second elastic member made up of a plurality of elastic elastic members extending from one side edge part to the other side edge part through the crotch part, respectively. A telescopic elastic member is disposed, and at least a part of the elastic member is disposed along the leg opening to form a leg elastic member.
The first elastic elastic member and the second elastic elastic member in the crotch part are disposed so as to be discontinuous at least in the central part of the crotch part, and an exterior member is formed in the discontinuous region of the elastic elastic member. Two sheets to be bonded are bonded. Since the elastic elastic members are discontinuously disposed in the crotch portion in this way, the obtained diaper does not contract the absorbent body in the crotch portion with the elastic body, and comfort is improved, and excrement Therefore, the absorber can be used efficiently and leakage can be prevented.
Furthermore, in the present invention, the method for discontinuously disposing the stretchable elastic member is performed by cutting the stretchable elastic member with a roll cutter or the like as shown below, so that the sheet forming the exterior member is also cut at the same time. Although the opening is formed, since the two sheets are bonded to each other at the cutting portion, the opening can be prevented from spreading and the strength of the diaper can be prevented from being lowered.
[0011]
As a method of discontinuously disposing the stretchable elastic member in the crotch region, after the stretchable elastic member is continuously disposed in a weakly bonded state between the two sheets of the exterior member, pressurization, heating, or It can be performed by cutting the elastic elastic member at the crotch, particularly at the center thereof, by a cutting method such as a cutting blade or a combination thereof. The cutting method is preferably a method in which an exterior member having a stretchable elastic member is passed between a roll cutter having a convex portion on the surface and a roll opposed to the outer member, and is cut by heating and pressing. . In the case of this method, even when the exterior member is cut when the elastic elastic member is cut, the portion is melted by heat and formed into a film, and a hole is not opened, so that the appearance is improved. Furthermore, the cutting is preferably performed from the inside of the exterior member, that is, from the absorbent body side of the diaper. If it does in this way, the outer side of an exterior member, ie, the outer side of a diaper, is hard to be damaged and it is preferred because it does not deteriorate the appearance. Further, it is preferable that the elastic elastic member is cut once per elastic elastic member. If it is cut twice or more, the cut pieces of the elastic elastic member remain in the sheet in the crotch region, which deteriorates the appearance, which is not preferable.
[0012]
Also, in the region where the elastic elastic member is discontinuous, the first elastic elastic member and the second elastic elastic member are bonded and fixed to the inner and outer layer sheets of the exterior member at the opening around the leg and the leg opening at the crotch. It adheres to the inner and outer layer sheets weaker than the adhesive. Such a weakly bonded elastic elastic member contracts while being peeled off from the sheet by its own contracting force when cut, but the contraction direction maintains the adhesion between the surrounding inner and outer layer sheets. Therefore, the elastic elastic member returns linearly along the locus on which the elastic elastic member is adhered, and the elastic elastic member does not break or bend, so that the appearance is good.
[0013]
The adhesive force of the adhesive used in the crotch region where the elastic members are discontinuously arranged is that of the adhesive that fixes the first elastic member and the second elastic member to the leg opening region. 5 to 80% of the adhesive strength is preferable, and 10 to 50% is more preferable. If it exceeds 80%, the adhesive force is too strong and the elastic elastic member is fixed between the sheets, and even when cut in the crotch region, it cannot be peeled off and contracted, and the absorber contracted. This is not preferable because it causes Conversely, an adhesive force of less than 5% is not preferable because stable adhesion cannot be achieved.
[0014]
In the crotch region, it is sufficient that the inner and outer layer sheets of the exterior part agent are weakly bonded. Therefore, it is preferable to make the adhesive strength low because the cost is low. The method of achieving weak adhesion is, for example, changing the adhesive used for the discontinuous part of the elastic elastic member fixing part in the leg opening area and the elastic elastic member in the crotch area, changing the bonding method, or bonding Any method can be used, such as reducing the amount of the adhesive or reducing the bonding area, but the method of reducing the amount of the adhesive can be easily implemented on the equipment, and the cost is low. This is preferable.
[0015]
The liquid-permeable top sheet used in the absorbent main body of the pants-type use diaper of the present invention is a liquid-permeable nonwoven fabric made of synthetic fibers using polyethylene, polypropylene, polyester, other thermoplastic resins as raw materials, Woven cloth is used. Moreover, natural fiber may be sufficient and it can manufacture from a wide range of materials, such as a combination of synthetic fiber and natural fiber. In any case, since the top sheet is a part that directly contacts the skin, the top sheet may be soft and soft, and may be breathable.
[0016]
Since the central region of the top sheet is disposed on the absorbent body, it is preferable that the top sheet is a hydrophilic fiber so that the liquid can permeate quickly. Moreover, it is preferable that the longitudinal direction both ends area | region of a top sheet is water-repellent so that it may not bleed out from the absorber which absorbed the liquid.
Moreover, the top sheet does not need to be composed of a single sheet, and may be composed of a plurality of sheets such as a central top sheet and a side top sheet. In addition, when the top sheet is composed of a plurality of sheets, each sheet may use a different material, but the same material may be used.
[0017]
The liquid-impermeable back sheet used for the pants-type diaper of the present invention is a liquid-impermeable film such as polyethylene, a material in which a nonwoven fabric or a woven fabric is bonded to a liquid-impermeable film, It is made of a leaky nonwoven fabric, woven fabric, or the like, and is not particularly limited as long as moisture in the absorbent body does not ooze out to the outside of the diaper. Moreover, in order to give a cloth-like appearance, it may be embossed into a pattern or may be further matte finished.
[0018]
Moreover, when using a film, you may use the well-known moisture-permeable film which permeate | transmits only water vapor | steam, although it is liquid-impermeable, and it is preferable from preventing a dampness. In addition, it may be a stretchable material so as to fit the wearer, a polyurethane film, a natural rubber sheet, a foam sheet, etc. may be used, and a stretched nonwoven fabric may be used. .
[0019]
The absorbent body used for the absorbent main body in the pants-type diaper of the present invention is formed by cotton-like pulp, a highly water-absorbing polymer material, a hydrophilic sheet, etc., and is particularly limited if it has water-absorbing properties. It is not something to receive. The absorbent body is made of a known absorbent material commonly used for conventional disposable diapers and other absorbent articles. In other words, it is formed from a single-layer or multi-layer mat made of absorbent fibers such as cotton pulp and rayon, and is wrapped by a hydrophilic sheet, and a superabsorbent polymer material is uniformly mixed in each mat. Alternatively, they are arranged in layers between the mats. In addition, the absorbent body uniformly mixed with the highly water-absorbing polymer substance may be subjected to thermocompression bonding after mixing 3 to 60% by mass of a heat-fusible substance with respect to the cotton-like pulp, Only the water-absorbing polymer substance may be wrapped with a hydrophilic sheet.
[0020]
The cotton-like pulp is one having a fiber length of 5 mm or less obtained by defibrating a chemical pulp sheet, a used paper pulp sheet, and a mechanical pulp sheet with a pulverizer. Pulp raw materials are not limited to conifers, but hardwoods, straw, bamboo and kenaf are also applicable. The amount of the pulp used depends on the intended absorber, for example, depending on whether it is used singly, a plurality of layers are used, or other absorbents are used in combination, but generally 50 to 400 g / m ^2. To be.
[0021]
Examples of the superabsorbent polymer material include starch-based, cellulose-based, and synthetic polymer-based materials. That is, starch-acrylic acid (salt) graft polymer, saponified product of starch-ethyl acrylate graft copolymer, saponified product of starch-methyl methacrylate graft copolymer, saponified product of starch-acrylonitrile graft copolymer, Examples include saponified starch-acrylamide graft copolymer, acrylic acid (salt) polymer, polyethylene oxide crosslinked with acrylic acid, crosslinked sodium carboxymethyl cellulose, crosslinked polyvinyl alcohol-maleic anhydride, and the like. However, it absorbs urine, body fluids and water more than 20 times its own weight, and sodium polyacrylate is most suitable from the viewpoint of absorption performance.
[0022]
The distribution amount of the superabsorbent polymer material is 10 to 500 parts by mass, preferably 15 to 300 parts by mass, with respect to 100 parts by mass of the dried cotton-like pulp. When distributed substantially uniformly in the pulp, when the superabsorbent polymer material absorbs water and swells, the particles have minimal mutual interference and are in continuous contact to form a permeation barrier. There is little, and urine and body fluid are permeated and absorbed well in the three-dimensional direction.
[0023]
There is no restriction | limiting in particular in the shape of the said absorber, such as an hourglass shape, a rectangular shape, and a T-shape, What is necessary is just a shape which fits a crotch. In general, in order to improve the wearing feeling, it is particularly preferable that the crotch part has a narrow shape such as an hourglass shape or a T-shape.
[0024]
In the present invention, the stretchable elastic member is disposed in a stretched state in the opening around the legs, the opening around the waist, and the like, and is bonded and fixed with a hot melt adhesive. As the elastic elastic member, a urethane film, urethane yarn, urethane foam, rubber thread or the like is used.
[0025]
【Example】
Hereinafter, the used diaper of the present invention will be described more specifically with reference to examples. However, the present invention is not limited to these examples.
[0026]
FIG. 1 is a perspective view showing a pants-type disposable diaper according to the present invention. In FIG. 1, the pant-type diaper 1 has a waist seam opening 4 and a leg circumference opening 5 formed by joining opposite side edges of the front body 2 and the back body 3 with side seams 6. A stretchable elastic member is disposed along each opening.
Furthermore, in the present invention, a stretchable elastic member can be disposed in the waist area between the waist opening 4 and the leg opening 5 in parallel to the waist opening 4. It is preferable to dispose the elastic elastic member in the waist area because the fit of the diaper to the wearer is improved and sliding down is prevented.
[0027]
In addition, the side seam 6 may be closed with the side edges of the front body 2 and the back body 3 protruding outward, or the edges of both ends protruding inward, or one side edge outward and the other side edge. It is possible to bond them by superimposing them in a state of projecting inward, hot melt adhesive, pressure melting, ultrasonic melting or the like alone or in combination.
[0028]
FIG. 2 is a plan view showing an extended state in which the side seam 6 of the pant-type use diaper of the present invention shown in FIG. 1 is released and deployed.
In FIG. 2, the front body 2 of the exterior member 20 is provided with a first elastic elastic member 7 made of a plurality of elastic elastic materials from one side edge to the other side edge through the crotch, The body 3 is provided with a second elastic elastic member 8 made of a plurality of elastic elastic materials from one side edge to the other side edge through the crotch, and the first and second elastic elastic members 7, A leg-stretchable elastic member is formed by a portion disposed along the leg-leg opening 8. In addition, a waist-opening stretchable elastic member 9 is disposed in the vicinity of the waist-opening 4 to provide stretch elasticity around the waist.
[0029]
Furthermore, the 1st elastic elastic member 7 and the 2nd elastic elastic member 8 are cut | disconnected by the cutting part 14 in the crotch part 11, and form the discontinuous part. Moreover, since the sheet | seat which forms the exterior member 20 is also cut | disconnected in the cutting | disconnection part 14 when a stretchable elastic member is cut | disconnected, the opening part is formed.
The cutting method may be such that one blade is attached to the roll cutter and the first and second elastic elastic members are cut together, and the blades are attached to two locations of the roll cutter and the first elastic elastic member and the second elastic member. The elastic elastic members may be cut separately, or the elastic elastic materials forming the first and second elastic elastic members may be cut individually, and are not particularly limited.
[0030]
Furthermore, the cut shape may be any shape such as a straight line, a curved line, a circle, and an ellipse, and may be arranged at right angles to the elastic elastic member or may be arranged obliquely. In this embodiment, the linear cut shape is obliquely arranged with respect to the elastic elastic member. However, when the arrangement is made in this way, when the opening is formed in the sheet forming the exterior member, the exterior member is Even if pulled in the vertical direction or the horizontal direction, the opening is difficult to expand, which is preferable.
[0031]
FIG. 3 is a plan view showing a fixed state of the first and second elastic elastic members of the pant-type use diaper of the present invention shown in FIG. In FIG. 3, the first stretchable elastic member 7 and the second stretchable elastic member 8 disposed in the leg opening 5 are bonded and fixed to the exterior member 20 by an adhesive at the fixing portion 12. Furthermore, in the stretchable elastic member discontinuous portion in the crotch portion 11, the fixing portion 13 bonds between the sheets forming the exterior member with an adhesive force weaker than the fixing portion 12 of the leg opening.
[0032]
Since the first elastic elastic member 7 and the second elastic elastic member 8 cut by the elastic elastic member cutting part 14 are not fixed by the adhesive force of the fixing part 13, they are peeled from the sheet by their own contractive force. Although it shrinks, since the surrounding exterior members are bonded, the stretchable elastic member shrinks along the arranged locus, and the adjacent stretchable elastic members do not overlap or break, so that the appearance is good. In addition, by changing the range of the area of the fixed part 12 and the fixed part 13, it is possible to freely adjust the range of the area around the leg that has elasticity and the area of the inseam that does not have elasticity.
[0033]
4 is a cross-sectional view showing a state in which the pant-type use diaper of the present invention shown in FIG. 3 is cut along the line AA ′. In FIG. 4, the pants-type use diaper 1 is formed of an absorbent main body 19 that absorbs excrement and an exterior member 20 that is joined to the absorbent main body 19 and holds it against the wearer. . The absorbent main body 19 is basically formed from a liquid-permeable top sheet 17, a liquid-impermeable back sheet 18, and an absorbent body 10 disposed between these two sheets. Solid gathers 23 are attached to both side edges of the sex main body 19. Furthermore, the exterior member 20 is formed of an outer layer sheet 21 and an inner layer sheet 22 laminated on the inner surface of the outer layer sheet 21, and the first elastic elastic member 7 is disposed between these two sheets. ing.
[0034]
The first elastic elastic member 7 is adhesively fixed to the outer layer sheet 21 with an adhesive 15 in the fixing portion 12 in the leg opening region. Further, in the first elastic elastic member 7, the portion forming the discontinuous portion in the fixing portion 13 of the diaper crotch lower region 11 is initially in a state where the outer layer sheet 21 and the inner layer sheet 22 are bonded by the adhesive 16. Although it is adhered between the sheets, the contraction force of the first elastic elastic member 7 is stronger than the adhesion force with the outer layer sheet 21, so that when it is cut at the crotch region 11, Shrink to form discontinuities. You may perform the adhesion | attachment in the fixing | fixed part 12 of the 1st elastic elastic member 7, and the temporary adhesion | attachment in the fixing | fixed part 13 with the adhesive agent apply | coated to the inner-layer sheet | seat 22 side. The adhesive 15 in the fixing portion 12 and the adhesive 16 in the fixing portion 13 may be the same adhesive or different adhesives. For the adhesive 16, an adhesive having a weak adhesive force is used, or in the case of the same adhesive, the adhesive By reducing the amount of 16 used, it is possible to obtain weak adhesion that can form a discontinuous portion of the elastic elastic member.
[0035]
FIG. 5 is a sectional view of another example showing a state in which the pant-type use diaper of the present invention shown in FIG. 3 is cut along the line AA ′. The first elastic elastic member 7 is bonded and fixed between the two sheets at the fixing portion 12 by the adhesive 15 applied to the outer layer sheet 21 and the adhesive 16 applied to the inner layer sheet 22. Further, the fixing portion 13 of the crotch region 11 forming the discontinuous portion of the first elastic elastic member 7 has the outer layer sheet 21 and the inner layer sheet 22 bonded together by the adhesive 16 applied to the inner layer sheet 22. Since the contraction force of the elastic elastic member when the first elastic elastic member 7 is cut is stronger than the adhesive force between the two sheets and the first elastic elastic member 7, Shrink to form discontinuities.
[0036]
The elastic elastic member is fixed at the fixing portion 12 because the elastic elastic member is sandwiched between the adhesive 15 and the adhesive 16 applied to the outer layer sheet 21 and the inner layer sheet 22, and is firmly bonded and fixed with a small amount of adhesive. In the fixing portion 13 that is a discontinuous formation portion of the elastic elastic member that requires weak adhesion, the amount of the adhesive 16 that is applied to the inner layer sheet 22 can be reduced. A weak adhesion area can be formed. Moreover, you may use the adhesive agent 15 by the side of the outer layer sheet 21 for the adhesive agent which forms a weak adhesion area | region.
[0037]
The first stretchable elastic member 7 and the second stretchable elastic member 8 before being cut at the crotch part are parallel to the width direction of the diaper. A plurality are arranged at intervals. In this case, the 1st elastic elastic member 7 and the 2nd elastic elastic member 8 may mutually be arrange | positioned, and may be arrange | positioned without intersecting.
[0038]
Further, the number of the elastic elastic materials forming the first elastic elastic member 7 and the second elastic elastic member 8 is not particularly limited, and may be the same for the first elastic elastic member 7 and the second elastic elastic member 8. Or different.
[0039]
In the diaper of the present invention, the first elastic elastic member 7 and the second elastic elastic member 8 are discontinuously disposed in the crotch center, and the exterior member is disposed in the discontinuous region of the elastic elastic member. The inner layer sheet and the outer layer sheet to be formed are bonded with an adhesive. In this way, by forming the discontinuous portion of the elastic elastic member in the central portion of the crotch region, the absorbent body does not shrink, so the comfort is improved, and the absorbent body is in the crotch central portion. Since it is no longer pressed by the wearer, a space is easily formed between the wearer and the absorbent body at the center of the crotch, a three-dimensional gathering is easy to stand, and a pocket structure is formed. Since it is not hindered that the absorbent body swells during absorption, the leakage prevention effect is greatly improved.
[0040]
Furthermore, since the discontinuous region of the elastic member is formed by cutting the elastic member in the crotch center region, the sheet forming the exterior member is also cut together to form an opening in the sheet. However, in this region, since the two sheets of the exterior member are bonded with an adhesive, the opening is not widened when the diaper is manufactured or worn, and the strength is maintained.
[0041]
【The invention's effect】
The pants-type use diaper of the present invention comprises an absorbent main body for absorbing excrement and an exterior member that holds the absorbent main body against the wearer, and the front body side and the rear body side of the exterior member are A first elastic elastic member and a second elastic elastic member made of a plurality of elastic elastic materials each extending from one side edge portion to the other side edge portion are disposed, at least a part of which is a leg. An elastic member around the leg is formed by being arranged along the peripheral opening. Moreover, the 1st elastic elastic member and the 2nd elastic elastic member are arrange | positioned discontinuously in the crotch part, and the 2 sheet | seat which forms an exterior member is adhere | attached in the discontinuous part area | region.
The pants-type use diaper of the present invention having such a structure is comfortable to wear, has excellent leakage prevention effect, has excellent strength at the time of manufacturing or wearing diapers, The discontinuities are neatly arranged, so it looks nice.
[Brief description of the drawings]
FIG. 1 is a perspective view of a pants-type diaper of the present invention.
2 is a plan view showing an extended state in which the side seam of the pant-type use diaper of the present invention shown in FIG. 1 is released and deployed. FIG.
3 is a plan view showing a fixed state of a stretchable elastic member of the pant-type use diaper of the present invention shown in FIG. 2; FIG.
4 is a cross-sectional view showing a state where the pant-type use diaper of the present invention shown in FIG. 3 is cut along the line AA ′. FIG.
FIG. 5 is a cross-sectional view of another example showing a state in which the pant-type use diaper of the present invention shown in FIG. 3 is cut along the line AA ′.
[Explanation of symbols]
1. Pants-type diapers 2. Front body 3. Rear body 4. Waist opening 5. Leg opening 6. Side seam 7. First elastic member 8. Second elastic member 9. Waist Elastic elastic member 10. Absorber 11. Crotch 12. Fixing part 13. Fixing part 14. Elastic elastic member cutting part 15. Adhesive 16. Adhesive 17. Liquid permeable top sheet 18. Liquid impermeable back sheet 19. Absorbent body 20. Exterior member 21. Outer layer sheet 22. Inner layer sheet 23. Solid gather

Claims (1)

An absorbent main body composed of a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the two sheets, and the absorbent main body are joined together, and the absorbent main body is attached to the wearer. It consists of an exterior member that holds and holds it, and joins the opposite side edges of the front body and back body of the exterior member to form an opening around the waist and a pair of leg openings, and it expands and contracts along the opening In the pants-type disposable diaper in which the elastic member is arranged, the exterior member is composed of two sheets, and between the two sheets of the exterior member on the front body side, from one side edge portion through the crotch part. A first elastic elastic member composed of a plurality of elastic elastic members reaching the other side edge is disposed, and at least a part of the first elastic elastic member is applied to both opposing surfaces of the two sheets along the leg opening. It is bonded and fixed by an adhesive and There is formed a leg-surrounding stretchable elastic member, between two sheets of the outer member of the rear body side, a plurality of stretchable elastic member through the crotch portion from one side edge extending at the other side edge A second elastic elastic member is disposed, and at least a part of the elastic member is bonded and fixed by an adhesive applied to both opposing surfaces of the two sheets along the opening around the leg, and the leg is elastic. An elastic member is formed, and other portions of the first elastic elastic member and the second elastic elastic member are formed in the crotch region by an adhesive applied only to one inner surface of the two sheets of the exterior member. A state where the sheet is contracted while being peeled along the locus disposed between the two sheets by being cut at the center of the crotch region from the state where the sheet is stretched and weakly bonded between the two sheets. and in less of the crotch region Are arranged in a state that is discontinuous at the center, pant disposable diaper between two sheets of the outer member in the crotch region is characterized by being bonded.

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