JP2014100312A - Disposable diaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disposable diaper effectively preventing a fastening tape from being unintentionally peeled off, and also easy to intentionally peel off the fastening tape.SOLUTION: A disposable diaper includes a vertically long absorptive body 5. The absorptive body 5 includes a belly side part A lying at the belly side of a wearer, a back side part B lying at his (her) back side, each when worn, and a crotch part C arranged between the belly side part A and the back side part B. The absorptive body 5 has a pair of fastening tapes 6, 6 at both of right and left sides of the back side part B, and a fastened area 9 for fastening the fastening tapes at the skin non-contact surface side of the belly side part A. The fastening tape 6 includes a tape base material 62, and a hook member 63 fixed to one surface thereof to form a fixation part. A slit 66 oriented in the longitudinal direction of the absorbent body is formed on the hook member 63, and non-slit parts 66f, to which the slit 66 is not extended, are provided at both end side parts of the hook member 63 in the longitudinal direction of the absorptive body.

Description

  The present invention relates to a disposable diaper.

Conventionally, a deployment-type disposable in which a pair of fastening tapes provided on both the left and right sides of the back side part are detachably attached to an attachment region provided on the outer surface of the abdomen part and are attached to the wearer. Diapers are known.
However, an infant who is a wearer may pull the fastening tape, or clothing or the like may be caught on a diaper worn by the infant or an adult, and the fastening tape may be unintentionally peeled off from the attachment region.
In order to prevent this unintentional peeling, it is only necessary to strengthen the engagement force of the fastening tape to the adherence area, but in that case, even when the diaper is intentionally peeled off, it is peeled off. It will be difficult.

As a technique related to the engagement between the fastening tape and the attachment region, Patent Document 1 describes a technique in which a plurality of hook member pieces are fixed in a state where gaps are provided between the pieces and a fastening part is formed. Has been.
Further, in Patent Document 2, target tapes that form a non-fixed region are arranged on both sides of the center part in the width direction of the abdominal side part, while fixing the center side in the width direction, the outer side in the width direction A technique is described in which the fastening tape can be peeled off without taking a place in a narrow space such as a toilet by making the side free.
In Patent Documents 3 and 4, a fastening tape is constituted by a base tape member and a hook tape member fixed to the base tape member, and the hook tape member is constituted by arranging a plurality of small pieces adjacent to each other. It is described.

JP 2004-344514 A JP 2008-79641 A JP 2008-161571 A JP2011-229984A

However, in the technique of Patent Document 1, since there is a gap between the small pieces of the hook member, when the first piece is peeled off when the force to be peeled off is applied to the fastening tape unintentionally, the subsequent pieces are also continuous. Therefore, unintended fastening tape cannot be effectively prevented from peeling off.
The technique of Patent Document 2 is a technique that allows the fastening tape to be peeled without taking up a place in a narrow space such as a toilet, and cannot prevent the unintended peeling of the fastening tape effectively.
The techniques of Patent Documents 3 and 4 cannot effectively prevent unintended peeling of the fastening tape because the bonding area of the hook tape member at the initial stage of peeling is small and sufficient initial engagement force cannot be obtained.

  Therefore, the subject of this invention is providing the disposable diaper which can eliminate the fault which the prior art mentioned above has.

  The present invention has a surface sheet on the skin contact surface side, a back sheet on the non-skin contact surface side, and a vertically long absorbent body in which an absorber is disposed between the top sheet and the back sheet. Has a ventral part located on the abdomen side of the wearer when worn, a dorsal part located on the dorsal side, and a crotch part disposed between the abdominal part and the dorsal part, and the absorption A disposable diaper having a pair of fastening tapes on both the left and right sides of the back side of the sexable body, and a non-skin contact surface side of the abdominal side having a fastening region for fastening the fastening tape, The fastening tape has a tape base material and a hook member that is fixed to one surface of the tape base material to form a fastening portion, and a slit oriented in the longitudinal direction of the absorbent main body is formed in the hook member. The hook member, at the front and rear ends in the longitudinal direction of the absorbent main body, Lit is intended to provide a disposable diaper having a non-slit portion which does not extend.

According to the disposable diaper of the present invention, a fastening that requires a relatively strong force at the beginning of peeling and can be peeled off with a relatively low force when starting to peel off is achieved. It is possible to effectively prevent the tape from peeling off, and it is easy to intentionally peel off the fastening tape such as retightening the diaper.
In particular, since both ends in the longitudinal direction of the slit do not reach both ends in the same direction of the hook member, the hook member can be handled as one member, the strength of the hook material itself can be maintained, and various melt patterns described later Can be applied.

FIG. 1 is a perspective view of a disposable diaper as an embodiment of the present invention. FIG. 2 is a partially broken plan view showing a developed state in which the disposable diaper shown in FIG. 1 is expanded in a planar shape. FIG. 3 is an enlarged perspective view showing the fastening tape of the diaper shown in FIG. 1 and the vicinity thereof. 4 is a cross-sectional view taken along line II-II in FIG. FIG. 5 is an explanatory diagram for explaining the operational effects of the disposable diaper shown in FIG. 1. FIG. 6 is a perspective view showing an example of a slit formation mode in the present invention. FIG. 7 is a perspective view showing an example of a formation mode of an adhesion region and a non-adhesion region in the present invention. FIG. 8 is a perspective view showing an example of a formation mode of a strong adhesion region and a weak adhesion region in the present invention.

Hereinafter, the disposable diaper of this invention is demonstrated, referring drawings based on the preferable embodiment.
A disposable diaper 1 (hereinafter referred to as diaper 1) as an embodiment of the present invention is a so-called unfolded diaper as shown in FIGS. 1 and 2, and has a surface sheet 2 and a non-skin on the skin contact surface side. On the contact surface side, there is a back sheet 3, and a vertically long absorbent main body 5 in which an absorbent body 4 is disposed between the top sheet and the back sheet, and the absorbent main body 5 is positioned on the wearer's stomach side when worn. A ventral side A, a dorsal side B located on the dorsal side, and a crotch C disposed between the ventral side and the dorsal side. And the attachment area | region which has a pair of fastening tapes 6 and 6 in the right and left both sides of the back side part B of the absorptive main body 5, and fastens a fastening tape to the non-skin contact surface side of the abdominal side part A 91.
In addition, the disposable diaper 1 has a long shape in the same direction as the absorptive main body 5 in a state where the disposable diaper 1 is flattened as shown in FIG. In this specification, the absorptive main body longitudinal direction X is a direction along the longitudinal direction of the absorptive main body 5 in a state where the diaper is expanded in a flat shape, and the absorptive main body width direction Y is expanded in a flat shape. In this state, it is a direction along the width direction of the absorbent main body 5.

  The diaper 1 will be described in more detail. The absorbent main body 5 includes a liquid-permeable top sheet 2, a liquid-impermeable or water-repellent back sheet 3, and a liquid-retaining absorbent interposed between the two sheets. The three-dimensional guard forming sheets 7 and 7 having an elastic member 71 are arranged on both left and right sides, and the inner edge side of the three-dimensional guard forming sheets 7 and 7 stands up when worn. Thus, a three-dimensional guard is formed.

  Since the diaper 1 has a structure in which the left and right sides of the center line CL extending in the longitudinal direction of the absorbent main body are line-symmetric, the right side fastening tape 6 in FIG. 2 will be described below. It is preferable to have the same configuration except that it is symmetrical.

As shown in FIGS. 3 and 4, the fastening tape 6 in the diaper 1 includes a tape base 62 and a hook member 63 fixed to one surface of the tape base 62. The hook member 63 forms a fastening portion 61 of the fastening tape 6.
The tape base material 62 extends from the side edge of the portion 62A fixed between the sheets constituting the absorbent main body 5 and the back side portion B of the absorbent main body 5, and constitutes a part of the fastening tape 6. And has a portion.

As shown in FIG. 4, the hook member 63 includes a sheet-like base sheet 64 and a plurality of engaging protrusions 65, 65... Standing from the surface of the base sheet 64. As such a hook member 63, for example, a hook-shaped member or a member having a hook-shaped engagement protrusion can be used. As the hook member 63, a known male member of a mechanical surface fastener can also be used. For example, "Magic tape (registered trademark)" (manufactured by Kuraray), "Quicklon (registered trademark)" (manufactured by YKK), A male member or the like in “Majikurosu (registered trademark)” (manufactured by Kanebo Bell Touch Co., Ltd.) or the like can be used.
The landing tape 91 is made of a loop material having a surface structure that can be engaged with the engaging protrusions of the hook member, and the outer surface of the landing tape 91 on the abdominal side B is the fastening tape 6, more specifically, the fastening tape. It becomes the to-be-attached area | region 9 which fastens the fastening part 61 of the tape 6 so that attachment or detachment is possible. As such a loop material, a material capable of fixing the hook member by pressing the hook member can be used without particular limitation. As a loop material, the female member of a well-known mechanical surface fastener can be used, For example, the female member in the various well-known mechanical surface fastener mentioned above can be used. Further, by forming the outer surface of the abdominal side portion A from a material that can directly engage the engaging protrusions of the hook member, for example, a non-woven fabric that is rich in engaging properties, this can also be used as a loop material.

  As shown in FIGS. 3 and 4, the hook member 63 in the diaper 1 of the present embodiment is formed with a plurality of slits 66 oriented in the longitudinal direction X of the absorbent main body. Both ends 66e do not reach both ends 63e, 63e in the same direction X of the hook member 63. That is, a non-slit portion 66 f where the slit 66 does not extend is formed at both front and rear end portions of the hook member 63 in the absorbent main body longitudinal direction X.

According to the diaper 1 of the present embodiment, as shown in FIG. 5 and FIG. 5A, the fastening tape 6 is fixed to the fixing region 9 as shown in FIG. In addition, when a force for peeling the fastening tape is applied to the front end 6 a side of the fastening tape 6, the individual inter-slit regions 67 sandwiched between the slits 66 in the hook member 63 are individually adhered regions 9. Even if one inter-slit region 67 peels from the adherence region 9, the inter-slit region 67 on the base end 6 b side continuously from the adherence region 9. Peeling is prevented. On the other hand, as in Patent Document 1, when the hook member small pieces are provided with a gap between the small pieces to form the fastening portion, the first small piece on the tip 6a side is removed from the fastening region 9. If it peels off, the subsequent small pieces will also peel off continuously.
By such an effect | action, according to the disposable diaper of this embodiment, peeling of the unintended fastening tape 6 can be prevented effectively. Further, since the engaging force of the member itself used as the hook member 63 is not increased and the peeling resistance is not increased, it can be peeled with an unreasonable force without relying on a strong engaging force.

  From the viewpoint of ensuring such an effect more reliably, the width of the slit 66 is preferably less than 1 mm, and more preferably the width of the slit is zero. A slit having a width of zero means that both side portions sandwiching the slit are in contact with each other. That is, it is preferable that the back side is not seen through the slit like a cut line when the film is cut with a cutter knife.

Moreover, in the diaper 1 of this embodiment, as described above, both ends in the longitudinal direction of the slit 66 do not reach both ends in the same direction of the hook member 63, and the hook member 63 in the longitudinal direction X of the absorbent main body Non-slit portions 66f are formed at both front and rear ends. Therefore, when the hook member is peeled off, the hook member can be handled as one member, the strength of the hook material itself can be maintained, and various melt patterns described later can be applied. When peeling off, both end portions of the slit become the starting point of peeling and can be peeled off smoothly.
From the viewpoint of ensuring such an effect, the distance d from each end 66e of the slit 66 to the end 63e of the hook member on the extension line (non-slit portion 66f, see FIG. 3). The lower limit is 2 mm or more, preferably 3 mm or more, and the upper limit is 15 mm or less, preferably 5 mm or less.

  Moreover, as shown in FIG. 4, the hook member 63 in the diaper 1 of the present embodiment is located between the adhesive region A and the adhesive regions A, A bonded to the tape base material 62 via an adhesive, It has a non-bonded region N that is not bonded to the tape base material 62. The bonding mode of the hook member 63 to the tape base material 62 in the hook member 63 in the diaper 1 is the mode shown in FIGS. 4 and 7 (e), with two slits located at both ends in the width direction and further at the center. The inter-region 67 has an adhesive region having a shape that is long in the longitudinal direction of the absorbent main body. Further, as shown in FIG. 5, the adhesion region of the region 67 located between the slits is located between the non-adhesion regions.

When peeling the fastening material from the loop material, if there is a non-adhesive region, a relatively large peeling force is required compared to the case where there is no non-adhesive region, thus preventing unintentional peeling. it can. This is because when peeling, the fastening material loosens in the direction where the fastening material is pulled in the non-bonded area, so the force to be peeled is dispersed by loosening and the fastening material and the loop material do not feel disengaged easily. Seem. Even if a force is applied to the engaging portion during mounting, the force is absorbed to some extent by slack, so that it does not accidentally come off.
Therefore, each inter-slit region 67 sandwiched between the slits 66 individually expresses a resistance to peeling from the adherence region 9, and the fastening portion is caught by something and peeled off even with a weak force. Unintended peeling of the fastening tape 6 can be prevented more effectively.

Next, another embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 6A, only one slit 66 may be formed in the hook member 63. However, as shown in FIGS. 6 (b) to 6 (g), it is preferable to form a plurality of wires from the viewpoint of preventing unintended peeling.
Moreover, although it is preferable that a slit is linear shape, for example, as shown to FIG.6 (e), zigzag shape may be sufficient.
Further, when a plurality of slits 66 are formed, each of the plurality of slits 66 has a length from the proximal end side to the distal end side of the fastening tape as shown in FIGS. 6 (d) and 6 (e). It is gradually shortened toward the surface, but it peels off with a relatively large force at the beginning of peeling, and the slit length becomes longer toward the base end side, so that the base end portion can be peeled even with a relatively weak force Therefore, it is possible to prevent accidental peeling due to an impact of something during mounting, and it is preferable that a force is applied when intended and the peeling starts smoothly. 6 to 8, the right side is the front end 6a side of the fastening tape, and the left side is the base end 6b side of the fastening tape. The length of the slit is the length in the longitudinal direction of each of the plurality of slits oriented in the longitudinal direction of the absorbent main body.

  Further, when forming a plurality of slits 66, particularly three or more slits 66, as shown in FIGS. 6 (f) and 6 (g), these slits may be formed with different intervals between the slits. good. In particular, as shown in FIG. 6 (g), it is preferable from the viewpoint of ease of peeling intentionally that the fastening tape is formed so that the interval becomes narrower from the proximal end side to the distal end side.

  Further, as shown in FIGS. 7A to 7F, the hook member 63 is located between the adhesive region A bonded to the tape base material and the adhesive region, and is bonded to the tape base material. It is preferable from the point of sufficient engagement force to have a non-adhesive region N that is not. In FIG. 7, a rod-like body with dots means an adhesive, a portion located on the adhesive is an adhesive region A, and a portion not located on the adhesive is a non-adhesive region N. . FIG.7 (e) is the joining aspect with respect to the tape base material 62 of the hook member 63 in the diaper 1 mentioned above.

  When forming the adhesive region A bonded to the tape base material and the non-adhesive region N not bonded to the tape base material on the hook member 63, as shown in FIGS. 7 (a) and 7 (b), Forming the adhesive region A at both ends of the hook body 63 in the longitudinal direction X of the absorbent main body adds a force to peel the fastening tape between the portions located between the adhesive regions A in the longitudinal direction X of the absorbent main body. When this occurs, it deforms in a convex shape toward the adherent region 9, and the individual inter-slit regions 67 exhibit excellent peeling resistance, thereby preventing unintended fastening tape from being more reliably prevented. It is preferable from the point. The expression that the bonding area A is formed at both ends of the hook body 63 in the longitudinal direction X of the absorbent body or the width direction Y of the absorbent body includes a dry edge or the like at the end of the hook member 63 in the same direction. The case where it has a micro non-adhesion area | region whose width called 2 mm or less is also included.

Further, for example, as shown in FIGS. 8A, 8B, and 8D, the hook member 63 is firmly bonded to the tape substrate as an adhesive region A bonded to the tape substrate. It is also preferable from the viewpoint of preventing unintended peeling of the fastening tape to have the strongly bonded region A1 formed and the weakly bonded region A2 bonded weakly compared to the strong bonded region.
Further, in that case, as shown in FIG. 8A, the strong adhesion region A1 has a width direction strong adhesion region formed at both ends of the hook body 63 in the absorbent main body width direction Y. It is more preferable from the viewpoint of preventing unintended fastening tape from peeling off. On the other hand, as shown in FIG. 8B, it is intentional that the strong adhesion region A1 has longitudinal strong adhesion regions formed at both ends in the longitudinal direction X of the absorbent main body of the hook member 63. It is more preferable from the viewpoint of easy peeling. Further, as shown in FIG. 8 (d), it is intentionally peeled off to have strong adhesion regions A2 formed at both ends in the absorbent body width direction Y and both ends in the absorbent body longitudinal direction X. It is more preferable from the point of easiness.

  Moreover, as shown in FIG.8 (c), while the strong adhesion area | region A1 is formed in the both ends of the absorptive main body longitudinal direction X of a hook member, weak adhesion area | region A2 is between strong adhesion area | region A1, A1. It is more preferable from the viewpoint of easy removal that the adhesive strength of the weakly bonded region A2 is gradually reduced from the front end side to the base end side of the fastening tape.

  In any of the above-described embodiments, the slit 66 may be formed only in the hook member 63, but each slit 66 penetrates the entire hook member 63 and the tape base material 62, or the tape. It can also form integrally so that it may form to the middle of the thickness direction of a base material. A configuration in which the slit 66 extends not only to the hook member 63 but also to the tape base material 62 is preferable from the viewpoint that the slit can be introduced after the hook member and the tape member are bonded at the time of manufacture.

  The forming material of each part in the diaper 1 will be described. As the forming material of the top sheet 2, the back sheet 3, the absorber 4, and the three-dimensional guard forming sheet 7, various known materials used as materials in conventional disposable diapers, respectively. These materials can be used without particular limitation. For example, as the top sheet 2, various liquid-permeable sheet materials such as a nonwoven fabric and a perforated film can be used, and as the back sheet 3, a resin film that does not have moisture permeability, fine pores, A wet resin film, a non-woven fabric such as a water-repellent non-woven fabric, a laminate of these and other sheets, and the like can be used. As the absorbent body 4, a fiber assembly made of hydrophilic fibers such as defibrated pulp or the like A material in which a superabsorbent polymer is held can be used.

  As a forming material of the tape base material 62, a synthetic resin such as polyethylene, polypropylene, and polyethylene terephthalate, and a sheet or a nonwoven fabric made of a composite material of two or more of these synthetic resins can be used.

As mentioned above, although preferable embodiment of this invention was described, this invention is not restrict | limited to embodiment mentioned above, A various change is possible in the range which does not deviate from the meaning of this invention.
The description omitted in one embodiment described above and the requirements of only one embodiment can be applied to other embodiments as appropriate, and the requirements in each embodiment can be appropriately changed between the embodiments. Can be substituted.

The following disposable diaper is further disclosed regarding the embodiment mentioned above.
<1> It has a surface sheet on the skin contact surface side, a back sheet on the non-skin contact surface side, and a vertically long absorbent body in which an absorbent body is disposed between the top sheet and the back sheet. The abdomen located on the abdomen side of the wearer when worn, the dorsal side part located on the dorsal side, and the crotch portion arranged between the abdomen side part and the dorsal side part; A disposable diaper having a pair of fastening tapes on both the left and right sides of the back side part of the main body, and a non-skin contact surface side of the abdominal part having a fastening region for fastening the fastening tape,
The fastening tape includes a tape base material and a hook member that is fixed to one surface of the tape base material to form a fastening portion, and the hook member has a slit oriented in the longitudinal direction of the absorbent main body. A disposable diaper which is formed and has a non-slit portion where the slit does not extend at both front and rear ends in the longitudinal direction of the absorbent main body of the hook member.
<2> The disposable diaper according to <1>, wherein a plurality of the slits are formed at intervals in the absorbent main body width direction.
<3> The disposable diaper according to <2>, wherein each of the plurality of slits is formed so that each length gradually decreases from a proximal end side to a distal end side of the fastening tape.
<4> The disposable diaper according to the above <2> or <3>, wherein the plurality of slits are formed so that a distance is narrowed from a proximal end side to a distal end side of the fastening tape.
<5> The hook member has an adhesive region bonded to the tape base material and a non-adhesive region positioned between the adhesive regions and not bonded to the tape base material. The disposable diaper according to any one of> to <4>.
<6> The disposable diaper according to the above <5>, wherein the bonding region is formed at both ends of at least one of the hook member in the longitudinal direction and the width direction of the absorbent body.
<7> The disposable diaper according to <5>, wherein the adhesive region is formed at both ends of the hook member in the absorbent main body width direction and is formed between at least one slit.
<8> The hook member includes, as an adhesion area bonded to the tape base material, a strong adhesion area firmly bonded to the tape base material, and a weak adhesion area weakly bonded to the strong adhesion area. The disposable diaper according to any one of the above items <1> to <7>.
<9> The disposable diaper according to <8>, wherein the strong adhesion region has a width direction strong adhesion region formed at both ends of the hook member in the absorbent main body width direction.
<10> The strong adhesion region has a longitudinal strong adhesion region formed at both ends in the longitudinal direction of the absorbent main body of the hook member, and the weak adhesion region is formed between the strong adhesion regions in the longitudinal direction. The disposable diaper according to <8> or <9>, wherein the weak adhesive region has an adhesive force that gradually decreases from the distal end side to the proximal end side of the fastening tape.
<11> The disposable diaper according to any one of <1> to <10>, wherein the slit is formed integrally with the hook member and the tape base material.
<12> The slit is integrally formed so as to penetrate through the entire hook member and the tape base material or to reach the middle of the tape base material through the hook member. The disposable diaper according to any one of> to <11>.
<13> The hook member formed on the fastening tape includes a sheet-like base sheet and a large number of engaging protrusions standing from the surface of the base sheet. The disposable diaper according to any one of the above items <1> to <12>, wherein
<14> The disposable diaper according to any one of <1> to <13>, wherein the width of the slit is less than 1 mm, and preferably the width of the slit is zero.
<15> The disposable diaper according to any one of <1> to <14>, in which both side portions sandwiching the slit are in contact with each other.
<16> The distance d from each end of the slit to the end of the hook member on the extension line is 2 to 15 mm, more preferably 3 to 5 mm, any one of <1> to <15> The disposable diaper according to 1.
<17> The disposable diaper described in any one of the above items <1> to <16>, wherein the slit formed in the hook member has a linear shape or a zigzag shape. Any one of <1> to <17>, which is formed at both ends in the longitudinal direction or the width direction and has a minute non-adhesive region having a width of 2 mm or less as a dry edge at the end in any one direction of the hook member The disposable diaper according to claim 1.
<19> The disposable diaper according to any one of <1> to <18>, wherein the surface sheet uses a liquid-permeable sheet material such as a nonwoven fabric or an apertured film.
<20> The back sheet uses a resin film not having moisture permeability, a resin film having fine pores and moisture permeability, a nonwoven fabric such as a water-repellent nonwoven fabric, and a laminate of these and other sheets. The disposable diaper according to any one of 1> to <19>.
<21> The absorbent body according to any one of <1> to <20>, wherein the absorbent body uses a fiber assembly made of hydrophilic fibers such as defibrated pulp or a superabsorbent polymer held therein. Disposable diapers.

DESCRIPTION OF SYMBOLS 1 Disposable diaper 2 Top sheet 3 Back sheet 4 Absorber 5 Main body 6 Fastening tape 61 Fastening part 62 Tape base material 63 Hook member 64 Base sheet 65 Engagement protrusion 66 Slit 66e End part of slit longitudinal direction 66f Non-slit part 67 Area between slits 71 Elastic member 9 Attachment area 91 Landing tape A Adhesion area N Non-adhesion area A1 Strong adhesion area A2 Weak adhesion area

Claims (8)

It has a surface sheet on the skin contact surface side, a back sheet on the non-skin contact surface side, and a vertically long absorbent main body in which an absorbent body is disposed between the top sheet and the back sheet. A back side of the absorbent main body having a ventral side located on the abdomen side of the wearer, a back side located on the back side, and a crotch portion disposed between the abdominal side and the back side. A disposable diaper having a pair of fastening tapes on the left and right sides of the side part, and a non-skin contact surface side of the abdominal part having a fastening region for fastening the fastening tape,
The fastening tape includes a tape base material and a hook member that is fixed to one surface of the tape base material to form a fastening portion, and the hook member has a slit oriented in the longitudinal direction of the absorbent main body. A disposable diaper which is formed and has a non-slit portion where the slit does not extend at both front and rear ends in the longitudinal direction of the absorbent main body of the hook member.   The disposable diaper according to claim 1, wherein a plurality of the slits are formed at intervals in the width direction of the absorbent main body.   The disposable diaper according to claim 2, wherein each of the plurality of slits is formed such that each length thereof gradually decreases from the proximal end side to the distal end side of the fastening tape.   The disposable diaper according to claim 2, wherein the plurality of slits are formed so that a distance is narrowed from a proximal end side to a distal end side of the fastening tape.   The hook member has an adhesive region bonded to the tape base material, and a non-adhesive region located between the adhesive regions and not bonded to the tape base material. The disposable diaper of any one of Claims.   The disposable diaper according to claim 5, wherein the adhesive region is formed at both ends of at least one of the hook member in the longitudinal direction and the width direction of the absorbent body.   The disposable diaper according to claim 5, wherein the adhesive region is formed at both ends of the hook member in the width direction of the absorbent main body and is formed between at least one slit.   The slit is integrally formed in the hook member and the tape base material so as to penetrate through the entirety of the hook member or the tape base material and reach the middle of the tape base material in the thickness direction. The disposable diaper of any one of -7.

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