JP2018198901A - Pants-type disposable diapers - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pants-type disposable diaper whose waist size can be easily adapted to a wearer's body shape. SOLUTION: A pants-type disposable diaper 100 has a front body in contact with the abdomen of the wearer, a back body 2 in contact with the back of the wearer, and an inseam area 3 located between them, and the front body 1 and the like. The left and right sides of the back body 2 in the width direction are joined. The pants-type disposable diaper 100 includes one or more fixing belts 40 extending outward in the width direction beyond the side edges of the diaper. [Selection diagram] Fig. 1

Description

  The present invention relates to a pants-type disposable diaper.

  Conventionally, pants-type disposable diapers for infants and the elderly are known. The pants-type disposable diaper is a type of disposable diaper in which both front and rear body side parts are joined in advance. As a pants-type disposable diaper, the exterior body on which the absorbent main body is placed is integrated from the front body to the back body (Patent Document 1), or the exterior body is separated at the front body and the back body A separate type (Patent Document 2) is known in which an absorbent main body is connected between a front body exterior body and a back body exterior body.

  In a pants-type disposable diaper, a plurality of elastic elastic members are generally fixed in an extended state on the periphery of a waist opening formed by bonding a front body and a back body. These elastic elastic members form waist gathers and tammy gathers by tightening around the wearer's waist so that the diaper does not slide down due to the wearer's movement and the weight of excrement . Thus, in order to prevent the diaper from slipping down by forming a waist gather or a tammy gather at the periphery of the waist opening, the elastic elastic member around the waist has been regarded as an important member.

JP 2009-254662 A JP 2010-233733 A

  By the way, conventional pants-type disposable diapers are generally manufactured by dividing them into standardized sizes such as S, M, and L so that an appropriate size can be selected according to the growth of infants and the like. However, the size around the waist cannot be selected in detail. For this reason, depending on the baby's body shape, there may be a case where the size around the waist is large and a gap is created when worn, or the size around the waist is small and the tightening by the elastic elastic member is felt tight. Some people feel uncomfortable with the feel and tightening of elastic elastic members made of rubber. Considering adult disposable diapers, the wearer's body shape, especially the size around the waist, is even more diverse. In pants-type disposable diapers with a certain tightening force, some people feel that the waist is loose, and others feel tight. For this reason, there is a demand for adjusting the tightening force around the waist according to the body shape, but conventional pants-type disposable diapers have not been able to meet such demands. Therefore, in such a case, a so-called tape-type disposable diaper can be worn instead of the pants-type disposable diaper. The tape-type disposable diaper is easier to adjust the size around the waist to suit the individual's body shape than the pants-type, and is there an elastic elastic member around the waist? The number is decreasing. However, a tape-type disposable diaper is easy to put on other people, but it is difficult to put on by yourself.

  Therefore, the present invention provides a pants-type disposable that makes it easy to adapt the size of the waist circumference to the wearer's body shape even when the number of elastic stretchable members around the waist is small or the elastic stretchable member is not provided around the waist. The purpose is to provide diapers.

  As a result of earnestly examining the means for solving the above problems, the inventor of the present invention has provided a fixing belt for adjusting the size of the waist around a disposable pants-type diaper, thereby reducing the number of elastic elastic members around the waist. It was found that the diaper can be firmly fixed even if it is reduced or eliminated. The inventor has conceived that the problems of the prior art can be solved based on the above knowledge, and has completed the present invention. More specifically, the present invention has the following configuration.

  The present invention relates to a pants-type disposable diaper. The pants-type disposable diaper has a front body 1 that contacts the wearer's abdomen, a back body 2 that contacts the back of the wearer, and a crotch region 3 positioned between them. The width of the front body 1 and the back body 2 The left and right sides of the direction are joined. The disposable diaper according to the present invention includes one or a plurality of fixing belts 40 extending outward in the width direction beyond the side edge of the diaper. The proximal end portion of the fixing belt 40 is preferably fixed to the side edge of the disposable diaper, but may be fixed to the middle part of the front body 1 or the back body 2, for example. Further, only one fixing belt 40 may be provided on either the left or right side, a pair (two in total) may be provided on the left or right side, or three or more may be provided.

  By attaching the fixing belt 40 to the pants-type disposable diaper as described above, the size around the waist can be adjusted using the fixing belt 40 after the disposable diaper is worn. Specifically, if the fixing belt 40 is wound around the waist, the fixing belt 40 fits in accordance with the wearer's body shape, so that urine leakage from the waist opening can be effectively prevented.

  In the present invention, the fixing belt 40 extends from one of the left and right side edges of the disposable diaper, covers the back body 2, turns around the other side edge, and the tip 41 reaches the front body 1. It is preferable to have the length. By setting it as such length, since the fixing belt 40 can be made more than half or more than one turn along the waist, it is possible to effectively prevent the disposable diaper from slipping down.

  In the present invention, it is preferable that the fixing belt 40 has a locking portion 42 that can be locked to the outer surface of the disposable diaper at the front end portion 41 thereof. As the locking portion 42, a male member of a mechanical fastener or the like can be used. By providing the locking portion 42 at the tip 41 of the fixing belt 40, the size around the waist can be easily adjusted.

  The fixing belt 40 may be attached to only one of the left and right side edges of the disposable diaper. As described above, by providing the fixing belt 40 only on one of the left and right sides, the size around the waist can be adjusted with one hand.

  The fixing belt 40 may be attached to both the left and right side edges of the disposable diaper. Thus, by providing at least one pair of fixing belts 40 on the left and right sides, the waist circumference can be tightened with a good balance. Further, the right and left fixing belts 40 can be tied and fixed.

  When the fixing belt 40 is attached to both the left and right side edges, the left and right fixing belts 40 may be provided at positions shifted in the longitudinal direction of the disposable diaper. If the left and right fixing belts 40 are provided on an extended line in the width direction, when one is wound around the waist, the other may become an obstacle, but the two are displaced in the longitudinal direction of the diaper. (That is, not to be provided on the extension line in the width direction), it becomes easy to wind both the fixing belts 40 around the waist.

  In the present invention, it is preferable that the number of elastic elastic members 11 and 21 for expanding and contracting the front body 1 and the back body 2 in the width direction is 5 or less, respectively, or the elastic elastic members 11 and 21 are not provided. . In the present invention, since the size around the waist can be adjusted using the fixing belt 40, the number of elastic elastic members provided in the conventional pants-type disposable diaper can be reduced or eliminated. If the elastic elastic member can be eliminated, even a person who feels uncomfortable with the feeling of tightening or touching the elastic elastic member can comfortably wear the pant-type disposable diaper. Some elastic elastic members provided around the waist of disposable diapers are cut or non-expanded at the center in the width direction, but even in the case of discontinuous elastic elastic members in the width direction. It is calculated as one on the extension line along.

  ADVANTAGE OF THE INVENTION According to this invention, the underpants type disposable diaper which is easy to adapt the size around a waist to a wearer's body shape can be provided.

FIG. 1 is an external perspective view showing a pants-type disposable diaper according to the first embodiment of the present invention. FIG. 2 is a developed plan view showing a pants-type disposable diaper according to the first embodiment of the present invention. FIG. 3 is an external perspective view showing a pants-type disposable diaper according to the second embodiment of the present invention. FIG. 4 is a developed plan view showing a pants-type disposable diaper according to the second embodiment of the present invention. FIG. 5 shows a modification of the embodiment shown in FIG.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. This invention is not limited to the form demonstrated below, The thing suitably changed in the range obvious to those skilled in the art from the following forms is also included.

  In addition, in the present specification, the “length direction” of a disposable diaper basically means the direction connecting the front body side and the back body side (vertical direction in FIG. 2), and the “width direction”. Basically means a direction (left-right direction in FIG. 2) orthogonal to the length direction. In the present specification, “A to B” means “A or more and B or less”.

  In the present specification, the contents of the present invention will be described in detail by taking as an example a pants-type disposable diaper in which the outer body for holding the absorbent main body is separated from the front body and the back body. However, the disposable diaper of the present invention is not limited to the type in which the outer body of the front body and the outer body of the rear body are separated, and can be applied to a type in which the outer body is connected in series from the front body to the back body. .

  FIG. 1 is an external perspective view of an example of a disposable diaper 100 according to the first embodiment of the present invention, and shows a state in which the disposable diaper 100 is viewed from the front body 1 side. FIG. 2 is a plan development view of the disposable diaper 100 shown in FIG. 1, and shows a state in which the disposable diaper 100 is viewed from a surface (skin facing surface) in contact with the wearer's skin. In addition, in FIG. 2, the state which bent the fixing belt 40 with which the disposable diaper 100 is provided is shown.

  As shown in FIGS. 1 and 2, the disposable diaper 100 according to this embodiment includes a front body exterior body 10, a back body exterior body 20, and an absorbent main body 30. The front body exterior body 10 constitutes a front body 1 that contacts the wearer's abdomen when worn, and the back body exterior body 20 constitutes a back body 2 that contacts the wearer's back when worn. The front body exterior body 10 and the back body exterior body 20 are separated from each other. The front body exterior body 10 and the back body exterior body 20 may be individually formed, or may be integrally formed later. The absorbent main body 30 has one end side in the length direction fixed to the front body exterior body 10 and the other end side fixed to the rear body exterior body 20. For this reason, in the present invention, the crotch region 3 between the front body 1 and the back body 2 is constituted by the absorbent main body 30. Thus, the absorptive main body 30 is in a state of being stretched between the front body exterior body 10 and the back body exterior body 20. As a means for fixing the absorbent main body 30 to the front body exterior body 10 and the back body exterior body 20, a known method can be used, for example, fixing using a hot melt adhesive or other fluid adhesive. It may be fixed to the method, or may be fixed by heat welding such as heat sealing or ultrasonic welding.

  Further, as shown in FIG. 1, the front body exterior body 10 and the back body exterior body 20 are joined to each other at the side seal portions 4 located on both side edges in the width direction, so that the front body exterior body 10 and the back body exterior body are joined. The exterior body 20 is connected in an annular shape. For this reason, as shown in FIG. 1, a waist circumference opening 5 located around the wearer's waist when worn and a leg circumference opening 6 located around the wearer's leg when worn. In this way, a pants-type disposable diaper 100 is formed. The wearer puts both legs into the waist opening 5 so that the abdomen is in contact with the front body exterior body 10 and the back is in contact with the back body exterior body 20, and each leg is opened around the leg. By taking out from the part 6, the pants-type disposable diaper 100 can be mounted.

  The front body exterior body 10 and the back body exterior body 20 are in contact with the wearer's abdomen and back, and absorbability located between the front body exterior body 10 and the back body exterior body 20 when the disposable diaper 100 is worn. It is a member for suspending the main body 30. The front body exterior body 10 and the back body exterior body 20 have a pair of side seal portions 4 at the left and right side edges in the width direction of the diaper. The front body exterior body 10 and the rear body exterior body 20 are joined at the pair of side seal portions 4 with the left and right side edges in the width direction of the diaper being overlapped with each other. The pair of side seal portions 4 extends in the length direction of the diaper and is linearly formed. In the side seal portion 4, the front body exterior body 10 and the back body exterior body 20 are joined by a known joining means such as hot emboss welding or ultrasonic emboss welding.

  The absorptive main body 30 can employ a known configuration. The absorbent main body 30 is held in a state of being stretched between the front body exterior body 10 and the rear body exterior body 20, and is positioned at the crotch portion of the wearer when the disposable diaper 100 is worn. Absorbs and retains excreted urine and other liquids. The absorbent main body 30 is arranged over the front body 1 and the back body 2 with the crotch part 3 of the disposable diaper as the center. As shown in FIG. 2, the absorbent main body 30 only needs to include an absorbent body 31, a top sheet 32, and a back sheet 33.

  The absorber 31 is a member for absorbing liquid such as urine and holding the absorbed liquid. The absorber 31 is disposed between a liquid-permeable top sheet 32 and a liquid-impermeable back sheet 33. The absorber 31 has a function of absorbing the liquid that has passed through the top sheet 32 and is made of an absorbent material. As the absorbent material constituting the absorber 31, a known material can be adopted. As the absorbent material, for example, flap pulp, superabsorbent polymer, or hydrophilic sheet may be used. In addition, as the absorbent material, one kind of flap pulp, superabsorbent polymer, or hydrophilic sheet may be used alone, or two or more kinds may be used in combination. The absorbent material is usually formed and used in a single-layer or multi-layer mat shape. The shape of the absorber 31 can be appropriately designed according to the shape, size, and application of the disposable diaper. For example, the shape of the absorber 31 may be an hourglass shape as shown in FIG. Moreover, it is good also as a rectangular type, an elliptical type, or a gourd type currently used for the general disposable diaper.

  The top sheet 32 is a member that is in direct contact with the skin of the wearer's crotch and allows liquid such as urine to pass through the absorber 31. For this reason, the top sheet 32 is made of a liquid-permeable material having high flexibility. Further, the top sheet 32 is disposed so as to cover the skin contact surface side of the absorber 31. The example of the impermeable material which comprises the top sheet 32 is a woven fabric, a nonwoven fabric, or a porous film. Further, for example, a fiber made of a thermoplastic resin such as polypropylene, polyethylene, polyester, or nylon, which has been subjected to a hydrophilization treatment and further made into a non-woven fabric may be used.

  The back sheet 33 is a member for preventing the liquid that has passed through the top sheet 32 and absorbed by the absorber 31 from leaking to the outside of the diaper. For this reason, the back sheet 33 is made of a liquid-impermeable material. The back sheet 33 covers the absorbent body 31 from the non-skin contact surface side in order to prevent liquid leakage from the bottom surface of the absorbent body 31. An example of the impermeable material constituting the back sheet 33 is a liquid impermeable film made of polyethylene resin. In particular, it is preferable to use a microporous polyethylene film in which a plurality of fine pores of 0.1 to 4 μm are formed.

  The disposable diaper 100 further includes a fixing belt 40. The fixing belt 40 is used to fit the wearer around the waist of the diaper after the wearer wears the pants-type disposable diaper 100. As shown in FIGS. 1 and 2, the fixing belt 40 extends long along the width direction so as to extend outward in the width direction beyond the side edge of the disposable diaper 100. In the example shown in FIG. 1, the fixing belt 40 extends from the side edge on the wearer's right hand side when worn, covers the back body 2, goes around the side edge on the left hand side of the wearer, and its tip The part 41 has a length equal to or longer than the length reaching the front body 1. The fixing belt 40 may extend from the side edge on the wearer's left hand side and turn around the side edge on the wearer's right hand side.

  In the first embodiment shown in FIGS. 1 and 2, the fixing belt 40 is attached to only one of the left and right side edges of the disposable diaper. In the illustrated example, it is attached only to the side edge of the wearer's right hand when worn.

  Specifically, the fixing belt 40 includes a base end portion 43 fixed to the front body 1 (the front body exterior body 10) or the back body 2 (the back body exterior body 20), and the base end portion 43. This is a belt-like member having the tip 41 on the opposite side. The base end portion 43 of the fixing belt 40 is bonded to the diaper main body by, for example, a hot melt adhesive or joined to the diaper main body by heat sealing or ultrasonic sealing. Basically, the base end portion 43 of the fixing belt 40 is strongly joined so as not to peel off from the diaper main body. Further, for example, the base end portion 43 of the fixing belt 40 is sandwiched between the front body 1 and the back body 2 when the side seal portion 4 is formed on the front body 1 and the back body 2, and the side seal portion 4. The front body 1 and the back body 2 may be joined. On the other hand, an engaging portion 42 that engages with the outer surface of the diaper main body is provided at the distal end portion 41 of the fixing belt 40. An example of the engaging portion 42 is a male member of a mechanical fastener or an adhesive tape, and can be releasably fastened to the outer surface of a diaper main body made of a nonwoven fabric or the like. The engaging portion 42 is preferably engageable with the outer surface of the fixing belt 40. In this case, the engagement portion 42 can be fastened to the outer surface of the fixing belt 40 when the fixing belt 40 is wound around the waist of the wearer more than once.

  The fixing belt 40 has a constant lateral width W (length in the longitudinal direction of the disposable diaper) and an extension length L (length in the width direction of the disposable diaper). The width B of the fixing belt 40 is 20% to 100%, 30 to 100% with respect to the length S in the longitudinal direction of the exterior body (the back body exterior body 20 in the example of FIG. 2) to which the belt 40 is attached. Or it is preferable to set it as 50 to 100%. The lateral width W of the fixing belt 40 may be equal to the length S of the exterior body, but may be shorter than that. If the lateral width W of the fixing belt 40 is too short, an appropriate fit cannot be provided around the waist. Therefore, it is preferable to have a width of at least 20% with respect to the length S of the exterior body. On the other hand, the extension length L of the fixing belt 40 is 110% to 300% with respect to the length B in the width direction of the exterior body (the back body exterior body 20 in the example of FIG. 2) to which it is attached. , 130% to 280%, or 150% to 200%. If the extension length L of the fixing belt 40 is 110% or more (particularly 150%) with respect to the length B of the exterior body, the front end portion 41 of the fixing belt 40 is turned to the back body 2 side to rotate the 1 can be attached. If the extension length L of the fixing belt 40 is too long, it is obstructive. Therefore, it is preferable to keep it at most about 300% with respect to the length B of the exterior body.

  The fixing belt 40 preferably has elasticity. For example, the fixing belt 40 can be formed of a single elastic sheet member, or can be formed by laminating a plurality of elastic sheet members. Further, the fixing belt 40 may be made of, for example, a non-woven fabric having a good touch. The fixing belt 40 is formed by superposing a plurality of non-woven fabrics and fixing the elastic stretchable member along the width direction of the disposable diaper (extending direction of the fixing belt 40) between the non-woven fabrics. It is also possible to impart stretchability to.

  When wearing the disposable diaper 100 according to the present embodiment, first, as usual, both the legs of the wearer are inserted from the waist opening 5 and each leg is extended from the left and right leg openings 6. , Wear disposable diapers 100. Thereafter, the fixing belt 40 is extended from one side edge, passes through the back body 2 side, rotates the side edge on the opposite side, and brings the tip 41 to the front body 1 side. In this way, the fixing belt 40 is wound around the wearer's waist so that the engagement portion 42 provided at the tip 41 is fitted to the outer surface of the diaper body or the fixing belt 40 at a position where the fixing belt 40 fits appropriately. Fasten to. If it does in this way, the clearance gap between the disposable diaper 100 and a wearer's skin can be eliminated in the waist periphery 5 vicinity, and it can be made to fit easily.

  As described above, the disposable diaper 100 according to the present invention basically uses the fixing belt 40 and fixes the disposable diaper 100 around the wearer's waist. Therefore, the number of elastic elastic members around the waist used in conventional pants-type disposable diapers can be reduced or eliminated completely. In the embodiment shown in FIGS. 1 and 2, a plurality of elastic elastic members 11, 21 are disposed in the front body exterior body 10 and the back body exterior body 20 in an extended state along the width direction of the disposable diaper, respectively. Is done. These elastic elastic members 11 and 21 are members for forming gathers around the waist and abdomen of the front body exterior body 10 and the back body exterior body 20. Gather is formed by causing wrinkles in each sheet member by contracting a plurality of elastic elastic members 11 and 21 sandwiched between the sheet members constituting the exterior bodies 10 and 20 in an expanded state. Is. By forming the gathers, the flexibility and adhesion of the front body exterior body 10 and the back body exterior body 20 can be enhanced.

  In the present invention, it is preferable that the number of elastic elastic members 11 and 21 is 5 or less in each of the front body exterior body 10 and the back body exterior body 20. As shown in FIG. 1, there are elastic elastic members provided around the waist of disposable diapers that are cut or non-stretched at the center in the width direction. Even if it is a continuous elastic expansion-contraction member, what is on an extension line along the width direction is calculated as one. In the example shown in FIGS. 1 and 2, five elastic stretch members 11 and 21 are provided in each of the front body exterior body 10 and the rear body exterior body 20. However, the number of elastic elastic members 11 and 21 can be four or less, or can be zero. The elastic elastic members 11 and 21 are made of, for example, rubber thread. However, by completely eliminating the elastic elastic members 11 and 21, it is possible to eliminate the uncomfortable feeling given to the wearer by the rubber rubber touch and tightening. .

  Subsequently, a second embodiment of the disposable diaper 100 according to the present invention will be described with reference to FIGS. 3 and 4. FIG. 3 is an external perspective view of an example of the disposable diaper 100 according to the second embodiment of the present invention, and FIG. 4 is a plan development view of the disposable diaper 100 shown in FIG. As shown in FIGS. 3 and 4, in this embodiment, the fixing belt 40 is attached to both the left and right side edges of the disposable diaper. The base end portion 43 of the first fixing belt 40 is fixed to the side edge on the wearer's right hand side, and the base end portion 43 of the second fixing belt 40 is on the left hand side of the wearer. It is fixed to the side edge. In addition, as FIG. 4 shows, the 1st and 2nd fixing belt 40 is located on the extension line along the width direction of a disposable diaper.

  As shown in FIG. 2, in the second embodiment, when the pants-type disposable diaper 100 is worn, the first and second fixing belts 40 are turned to the back body 2 side, respectively. The locking part 42 is fixed to the outer surface of the front body 1 side by crossing on the two sides. By doing so, the disposable diaper 100 can be easily fitted around the waist of the wearer by tightening the first and second fixing belts 40 using both hands. In addition, when the first fixing belt 40 and the second fixing belt 40 have a sufficient length, the two fixing belts 40 can be tied on the front body 1 side. When it is assumed that two fixing belts 40 are originally connected, it is not necessary to provide the locking portion 42 at the tip 41 of each fixing belt 40.

  When the fixing belt 40 is attached to both the left and right side edges as in the second embodiment, the lateral width W of the fixing belt 40 is relative to the longitudinal length S of the exterior body to which the fixing belt 40 is attached. 5% to 50%, 10% to 30%, or 15% to 25%. If the width W of each fixing belt 40 is too thick, it is difficult to cross the two fixing belts 40 on the back body 2 side. On the other hand, if the lateral width W of each fixing belt 40 is, for example, 20 to 50% of the length S of the exterior body, it is easy to cross on the back body 2 side, and an appropriate holding force can be obtained.

  FIG. 5 shows a modification of the embodiment shown in FIGS. The modification of FIG. 5 is common to the example of FIG. 3 and the like in that fixing belts 40 are provided on the left and right sides of the disposable diaper. On the other hand, in the modified example of FIG. 5, the first and second fixing belts 40 are provided at positions shifted in the longitudinal direction of the disposable diaper (offset positions). That is, the 1st and 2nd fixing belt 40 is not located on the extended line along the width direction of a disposable diaper.

  As shown in FIG. 5, by shifting the positions of the first and second fixing belts 40, it is not necessary to cross them on the back body 2 side when the fixing belts 40 are wound around the waist. That is, the first and second fixing belts 40 can be wound in parallel with the width direction of the disposable diaper. In this way, whether the first and second fixing belts 40 are provided at shifted positions, or whether the first and second fixing belts 40 are provided on an extension line in the width direction as shown in FIG. Can be changed as appropriate according to the use of disposable diapers and the preferences and demands of the wearer.

  As mentioned above, in this specification, in order to express the content of this invention, embodiment of this invention was described, referring drawings. However, the present invention is not limited to the above-described embodiments, but includes modifications and improvements obvious to those skilled in the art based on the matters described in the present specification. For example, in the embodiment described in the present specification, only one fixing belt 40 is provided on one side, or one fixing belt 40 is provided on each side (two in total), but two or more are provided on one side. It is also possible to provide two or more on both sides.

  The present invention relates to a pants-type disposable diaper for infants and the elderly. Therefore, the present invention can be suitably used in industries related to childcare and nursing care.

DESCRIPTION OF SYMBOLS 1 ... Front body 2 ... Back body 3 ... Inseam area 4 ... Side seal part 5 ... Waist circumference opening part 6 ... Leg circumference opening part 10 ... Front body exterior body 11 ... Elastic elastic member 20 ... Back body exterior body 21 ... Elasticity Elastic member 30 ... Absorbent body 31 ... Absorber 32 ... Top sheet 33 ... Back sheet 40 ... Fixing belt 41 ... Tip portion 42 ... Locking portion 43 ... Base end portion 100 ... Disposable diaper

Claims (7)

Has a front body (1) in contact with the wearer's abdomen, a back body (2) in contact with the wearer's back, and a crotch region (3) located between the front body (1) and the back body (2) And a pants-type disposable diaper in which the left and right sides in the width direction of the front body (1) and the back body (2) are joined,
A disposable diaper comprising one or a plurality of fixing belts (40) extending outward in the width direction beyond the side edge of the disposable diaper. The fixing belt (40) extends from one of the side edges of the disposable diaper, covers the back body (2), turns around the other side edge, and has a front end (41) at the front body. The disposable diaper according to claim 1, wherein the disposable diaper has a length that reaches at least (1). The disposable diaper according to claim 2, wherein the fixing belt (40) has a locking portion (42) that can be locked to the outer surface of the disposable diaper at the tip end portion (41). The disposable diaper according to claim 3, wherein the fixing belt (40) is attached to only one of left and right side edges of the disposable diaper. The disposable diaper according to claim 2 or 3, wherein the fixing belt (40) is attached to both left and right side edges of the disposable diaper. The disposable diaper according to claim 5, wherein the left and right fixing belts (40) are provided at positions shifted in the longitudinal direction of the disposable diaper. The number of elastic elastic members (11, 21) for expanding and contracting the front body (1) and the back body (2) in the width direction is 5 or less, respectively, or the elastic elastic members (11, 21) are provided. The disposable diaper according to any one of claims 1 to 5.

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