JP2022029142A - Disposable diaper - Google Patents

Abstract

To provide a disposable diaper whereby it is possible to enhance followability to a curved surface shape of a body surface of a wearer with a portion provided with a hook member, and attach an attachment tape to an attachment corresponding part of the disposable diaper stably.SOLUTION: A disposable diaper 1 includes attachment tapes 11 on both sides of a diaper body 2 in a width direction x. The attachment tapes 11 include a tape base material 12 and a hook member 13 disposed on the tape base material 12. The hook member 13 includes a base and a plurality of engagement elements projecting from the base. The base is adhered to the tape base material 13 via an adhesion portion. The base has a cut-in line and/or a recessed line 17 formed thereon. The adhesion portion is not provided at a position overlapping with the cut line or the recessed line 17 such that a non-adhesion portion is formed.SELECTED DRAWING: Figure 1

Description

The present invention relates to a disposable diaper provided with a fastening tape.

Conventionally, so-called tape-type disposable diapers equipped with a fastening tape are widely known. Hook-and-loop fastener hook members are often provided on the fastening tape, and the fastening tape is provided on both sides of the rear side of the disposable diaper in the width direction, and the hook members of the fastening tape are provided on the front side of the disposable diaper when worn. Disposable diapers can be worn around the wearer's waist by engaging with the fastening-compatible portion. The fastening tape provided with the hook member has increased rigidity at the portion where the hook member is provided, and when the disposable diaper is worn, it has the ability to follow the curved surface shape of the wearer's body surface and the wearer's movement. May decrease. In response to such a decrease in followability due to the rigidity of the hook member, Patent Documents 1 and 2 disclose a fastening tape in which a slit is formed in the hook member.

Japanese Unexamined Patent Publication No. 2014-155598 Japanese Patent Publication No. 2008-522730

According to the fastening tape disclosed in Patent Documents 1 and 2, it is possible to improve the followability of the wearer's body surface to the curved surface shape by forming a slit in the hook member, but the wearer's body surface can be further improved. It is desirable to have a fastening tape that can improve the followability to the curved surface shape of the disposable diaper and that can stably fasten the fastening tape to the fastening corresponding portion of the disposable diaper.

The present invention has been made in view of the above circumstances, and an object thereof is a disposable diaper provided with a fastening tape provided with a hook member, and a portion of the wearer's body surface provided with the hook member. It is an object of the present invention to provide a disposable diaper that can improve the followability to a curved surface shape and can stably attach the adhesive tape to the attachment corresponding portion of the disposable diaper.

The disposable diaper of the present invention that has been able to solve the above problems is a disposable diaper that has a width direction and a front-back direction and is provided with fastening tapes on both sides of the diaper body in the width direction. Has a tape base material and a hook member provided on the tape base material, the hook member has a base material and a plurality of engaging elements protruding from the base material, and the base material is a tape base material with an adhesive portion. It is characterized in that a notch line and / or a dent line is formed on the substrate, and a non-adhesive portion is formed without an adhesive portion at a position overlapping the notch line or the dent line.

Since the disposable diaper of the present invention has a notch line and / or a recessed line formed on the hook member of the fastening tape, when the fastening tape is attached around the wearer's waist, the hook member is provided at the portion where the hook member is provided. It is possible to improve the followability of the adhesive tape to the curved surface shape of the body surface. Further, when the fastening tape is fastened to the fastening corresponding portion, it becomes easy to finely adjust the fastening position of the hook member. Further, since the hook member is not provided with the adhesive portion at the position where it overlaps with the cut line or the recessed line, the degree of freedom for the fastening tape to bend at the cut line or the recessed line is increased. Further, even if the fastening tape is bent at the notch line or the recess line while the fastening tape is anchored to the fastening corresponding portion, the base of the hook member starts from the notch line or the recess line and the hook member supports the fastening. It becomes difficult to unintentionally peel off from the part. Therefore, in the disposable diaper of the present invention, the fastening tape can be firmly and stably fastened to the fastening corresponding portion of the disposable diaper.

It is preferable that the adhesive portion is not provided within a range of at least 0.3 mm from the position where it overlaps with the cut line or the recess line. If the non-adhesive portion is formed at a position overlapping the cut line or the recess line in this way, the fastening tape can be fastened to the fastening corresponding portion with better fit.

The cut line and / or the recess line is preferably formed so as to extend linearly from the front side edge to the rear side edge of the substrate. When the cut line and / or the recess line is formed in this way, the hook member is likely to bend in the width direction along the circumferential direction of the wearer's waist. Therefore, when the disposable diaper is worn, the fit of the fastening tape to the wearer's waist can be improved.

It is preferable that the adhesive portions are not provided at both ends in the width direction of the substrate. As a result, when the hook member is fastened to the fastening corresponding portion, even if a force that shifts in the width direction acts on the hook member, the base of the hook member is less likely to be peeled off from both ends thereof. Therefore, the hook member can be stably fastened to the fastening corresponding portion.

It is preferable that the hook member is provided so as to be separated from the outer edge in the width direction of the tape base material in the width direction. If the fastening tape is formed in this way, it becomes easier to pinch the tip of the fastening tape. In this case, the length from the outer edge in the width direction of the hook member to the outer edge in the width direction of the tape base material is the length from the outer edge in the width direction of the hook member to the cut line and / or the recess line. Is also preferably formed long. As a result, even if the tip of the fastening tape bends along the outer edge of the hook member in the width direction and accidentally fastens to the hook member, the hook member is bent along the notch line and / or the recessed line to fasten the hook member. The tip of the tape can be easily peeled off from the hook member.

The hook member is divided into a plurality of regions in the width direction by a notch line and / or a recess line, and the region on the inner side in the width direction of the hook member is wider than the region on the outer side in the width direction of the hook member. It is preferable that the length in the direction is long. When the hook member is formed in this way, when the fastening tape is fastened to the fastening corresponding portion, the hook member is stably fastened to the fastening corresponding portion in the region on the inner side in the width direction. At the same time, it becomes easy to finely adjust the fastening position of the hook member in the region on the outer side in the width direction. Further, even if a force of peeling from the outer side in the width direction acts on the hook member, the region of the hook member on the outer side in the width direction formed to have a shorter length in the width direction absorbs the force. , The hook member is less likely to come off from the fastening corresponding part unintentionally.

The hook member is divided into a plurality of regions in the width direction by a notch line and / or a recess line, and the region on the inner side in the width direction of the hook member is larger than the area on the outer side in the width direction of the hook member. It is also preferable that the hook is widely formed. Even if the hook member is formed in this way, when the fastening tape is fastened to the fastening corresponding portion, the hook member is stably fastened to the fastening corresponding portion in the region on the inner side in the width direction. At the same time, it becomes easy to finely adjust the fastening position of the hook member in the region on the outer side in the width direction. Further, even if a force of peeling from the outer side in the width direction acts on the hook member, the region of the hook member on the outer side in the width direction formed with a narrow area absorbs the force, and the hook member becomes It becomes difficult to unintentionally peel off from the fastening corresponding part.

The hook member is divided into a plurality of regions in the width direction by a notch line and / or a recess line, and the ratio of the adhesive portion in the region on the inner side in the width direction of the hook member is the outer side in the width direction of the hook member. It is also preferable that the formed portion is larger than the ratio of the bonded portion in the region of. When the hook member is provided with the adhesive portion in this way, the rigidity of the hook member is increased in the region on the inner side in the width direction, and the rigidity in the region on the outer side in the width direction is relatively low. Therefore, when the fastening tape is fastened to the fastening corresponding portion, the hook member is stably fastened to the fastening corresponding portion in the region on the inner side in the width direction having high rigidity and has a low rigidity. It becomes easy to finely adjust the fastening position of the hook member in the region on the outer side of the direction. Further, even if a force that peels off from the outer side in the width direction acts on the hook member, the region of the hook member on the outer side in the width direction formed with low rigidity absorbs the force, and the hook member becomes It becomes difficult to unintentionally peel off from the fastening corresponding part.

The fastening tape has, as a hook member, a first hook member and a second hook member separated from the first hook member in the width direction and provided inward in the width direction from the first hook member. There may be. In this case, the first hook member and the second hook member are divided into a plurality of regions in the width direction by a notch line and / or a recess line, and the adhesive portion in the region on the inner side in the width direction of the first hook member. The ratio is larger than the ratio of the adhesive portion in the region on the outer side in the width direction of the first hook member, and the ratio of the adhesive portion in the region on the inner side in the width direction of the second hook member is the ratio of the second hook. It is preferably formed to be smaller than the ratio of the bonded portion in the region on the outer side in the width direction of the member. By forming the fastening tape in this way, the fastening tape can be stably fastened to the fastening corresponding portion, and a force of peeling from the tip side or the root side acts on the fastening tape. However, the first hook member and the second hook member are less likely to be unintentionally peeled off from the fastening corresponding portion. Further, when the fastening tape is fastened to the fastening corresponding portion, it becomes easy to finely adjust the fastening position of the first hook member in the region on the outer side in the width direction of the first hook member, and the second hook member is second. It becomes easy to finely adjust the fastening position of the second hook member in the region on the inner side in the width direction of the hook member.

In the disposable diaper of the present invention, the fastening tape can be firmly and stably fastened to the fastening corresponding portion of the disposable diaper.

An example of the disposable diaper of the present invention is shown, and a plan view of the disposable diaper as viewed from the skin surface side is shown. The II-II sectional view of the disposable diaper shown in FIG. 1 is shown. The enlarged plan view of the adhesive tape provided in the disposable diaper shown in FIG. 1 is shown. The IV-IV sectional view of the disposable diaper shown in FIG. 1 is shown. An example of forming an adhesive portion between the hook member and the tape base material in the adhesive tape shown in FIG. 3 is shown. An example of forming a cut line and / or a recessed line provided on the hook member of the fastening tape is shown. A configuration example of the fastening tape is shown, FIG. 7A shows a plan view of the fastening tape, and FIG. 7B shows a hook member and a tape base material in the fastening tape shown in FIG. 7A. An example of forming an adhesive portion is shown. A configuration example of the fastening tape is shown, FIG. 8A shows a plan view of the fastening tape, and FIG. 8B shows a hook member and a tape base material in the fastening tape shown in FIG. 8A. An example of forming an adhesive portion is shown. A configuration example of the fastening tape is shown, FIG. 9A shows a plan view of the fastening tape, and FIG. 9B shows a hook member and a tape base material in the fastening tape shown in FIG. 9A. An example of forming an adhesive portion is shown.

The present invention relates to a so-called tape-type disposable diaper provided with a fastening tape provided with a hook member. The hook member is a kind of hook-and-loop fastener, and the hook-and-loop fastener is known by trade names such as "Magic Tape" (registered trademark), "Velcro" (registered trademark), and "Quicklon" (registered trademark). The hook member is configured such that a plurality of engaging elements project from the base, and is usually used as a pair with the loop member, and is detachably attached to the loop member or functions as a loop member. It is detachably attached to a material (for example, a cloth material such as a non-woven fabric, a woven cloth, or a knitted cloth).

Tape-type disposable diapers are usually provided with fastening tapes with hook members on both sides of the rear side of the disposable diaper in the width direction, and the hook members of the fastening tape are fastened to the front side of the disposable diaper when worn. By fastening to the corresponding portion, the disposable diaper can be worn around the wearer's waist. The hook member (particularly the base) is made of a resin molded body or the like, and has a relatively higher rigidity than other members constituting the disposable diaper. Therefore, when the tape-type disposable diaper is worn around the wearer's waist, the part where the hook member is provided reduces the followability to the curved surface shape of the wearer's body surface, and the wearer tends to feel uncomfortable. .. The disposable diaper of the present invention is provided with a fastening tape provided with a hook member in this way, and the portion provided with the hook member can enhance the followability to the curved surface shape of the wearer's body surface. Moreover, the fastening tape can be stably fastened to the fastening corresponding portion of the disposable diaper. Hereinafter, the disposable diaper of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the embodiments shown in the drawings.

1 to 4 show an example of the disposable diaper of the present invention. FIG. 1 shows a plan view of a disposable diaper as viewed from the skin side, FIG. 2 shows a sectional view taken along line II-II of the disposable diaper shown in FIG. 1, and FIG. 3 shows a disposable diaper shown in FIG. An enlarged plan view of the provided fastening tape is shown, and FIG. 4 shows an IV-IV cross-sectional view of the disposable diaper shown in FIG. In FIG. 1, the upper side of the drawing corresponds to the front side of the diaper, and the lower side of the drawing corresponds to the rear side of the diaper. In the figure of the present application, the arrow x represents the width direction, the arrow y represents the front-back direction, and the direction perpendicular to the surface formed by the arrows x, y represents the thickness direction z.

The disposable diaper 1 has a diaper main body 2 and fastening tapes 11 provided on both sides of the diaper main body 2 in the width direction x. The diaper body 2 has a front side portion, a rear side portion, and a crotch portion located between them, and fastening tapes 11 are attached to both sides of the rear side portion of the diaper body 2. When wearing the disposable diaper 1, the front side is applied to the wearer's abdomen, the crotch is applied to the wearer's crotch, the posterior side is applied to the wearer's back, and the fastening tape 11 is applied to the front side of the diaper body 2. By fixing to, it is formed into a pants shape and used. For example, the disposable diaper 1 can be worn by providing the fastening corresponding portion 21 on the outer surface of the front side portion of the diaper main body 2 and fastening the fastening tape 11 to the fastening corresponding portion 21.

The disposable diaper 1 has a front-back direction y and a width direction x. The front-back direction y and the width direction x are defined in a state where the disposable diaper 1 is spread out in a plane. The front-back direction y corresponds to the direction extending in the front-back direction of the wearer's crotch when wearing a disposable diaper. The width direction x means a direction that is on the same surface as the disposable diaper and is orthogonal to the front-back direction y, and corresponds to the left-right direction of the wearer when the disposable diaper is worn. Further, in the present invention, the skin side of the disposable diaper means the side facing the skin of the wearer when wearing the disposable diaper, and the outside of the disposable diaper means the wearer when wearing the disposable diaper. It means the opposite side.

The diaper body 2 is configured, for example, with an absorber 5 arranged between the top sheet 3 and the back sheet 4. The top sheet 3 is a sheet located on the wearer side when the disposable diaper is worn, and the back sheet 4 is a sheet located on the opposite side of the wearer, that is, on the outside when the disposable diaper is worn. The urine or the like excreted from the wearer passes through the top sheet 3 and is housed in the absorber 5. The back sheet 4 prevents excrement from leaking to the outside.

The top sheet 3 is preferably liquid permeable, and is preferably a non-woven fabric formed of hydrophilic fibers such as cellulose, rayon, and cotton, and a polyolefin (for example, polypropylene, polyethylene), polyester (for example, PET), and polyamide (for example). For example, a non-woven fabric formed of hydrophobic fibers such as nylon), in which the surface of the hydrophobic fibers is hydrophilized by a surfactant, or the like can be used. Further, as the top sheet 3, a woven cloth, a knitted cloth, a perforated resin film or the like may be used.

The backsheet 4 is preferably liquid-impermeable, and is a non-woven fabric or resin film formed of hydrophobic fibers such as polyolefin (for example, polypropylene, polyethylene), polyester (for example, PET), and polyamide (for example, nylon). Etc. can be used. Further, as the back sheet 4, a laminated body of a non-woven fabric and a film may be used.

The absorber 5 is not particularly limited as long as it contains an absorbent material capable of absorbing excrement such as urine. As the absorber 5, for example, a molded body obtained by molding an absorbent material into a predetermined shape is used, or the molded body is covered with a covering sheet such as a paper sheet (for example, tissue paper or thin paper) or a liquid-permeable non-woven fabric. Things can be used. Examples of the absorbent material include hydrophilic fibers such as pulp fibers and water-absorbent resins such as polyacrylic acid-based, polyaspartic acid-based, cellulosic-based, and starch / acrylonitrile-based. Further, the water-absorbent material may include polyolefin fibers such as polyethylene and polypropylene, polyester fibers such as PET, and heat-weldable fibers such as polyamide fibers. These heat-weldable fibers may be hydrophilized with a surfactant or the like in order to enhance the affinity with urine or the like.

The absorbent material preferably contains hydrophilic fibers from the viewpoint of increasing the absorption rate of urine and the like. Further, from the viewpoint of increasing the absorption capacity, the absorbent material preferably contains a water-absorbent resin. Therefore, it is preferable that the absorber contains hydrophilic fibers (particularly pulp fibers) and a water-absorbent resin. In this case, for example, it is preferable to use an aggregate of hydrophilic fibers mixed or sprayed with a water-absorbent resin.

The absorber 5 may be a sheet-shaped absorber. Examples of the sheet-like absorber include those formed so as to have a water-absorbent resin between the nonwoven fabrics and not to have pulp fibers. Since the sheet-shaped absorber thus formed has a water-absorbent resin between the nonwoven fabrics, a high absorption capacity can be realized. Further, since the sheet-shaped absorber does not have pulp fibers between the non-woven fabrics, it can be formed thin without being bulky.

The shape (planar shape) of the absorber 5 is not particularly limited. The shape of the absorber (or the molded body constituting the absorber) may be appropriately determined according to the intended use, and examples thereof include a rectangle, an hourglass shape, a gourd shape, and a battledore shape. It should be noted that the absorber or the molded body constituting the absorber is formed in an hourglass shape from the viewpoint that the absorber is sandwiched between the thighs of the wearer and is not easily distorted even when pressed in the width direction x. Is preferable.

It is preferable that the diaper main body 2 is joined with side sheets 6 extending outward in the width direction x from the top sheet 3 on both sides of the top sheet 3 in the width direction x. The side sheet 6 is preferably liquid impermeable and can be made of a sheet material that can be used for the back sheet 4.

The side sheet 6 is joined to the top sheet 3 at the side joint portion 8, and the inner portion in the width direction x from the side joint portion 8 is formed so as to be able to stand up from the top sheet 3, and the width direction x from the side joint portion 8 is formed. The outer portion of the back sheet 4 is laminated (see FIG. 2). The inner portion of the side sheet 6 in the width direction x stands up to form a rising flap, which can prevent lateral leakage of urine or the like in the width direction x. Since the inner portion of the side sheet 6 in the width direction x is formed so as to be able to stand up from the top sheet 3, the side sheet 6 has a front-rear direction y in the inner portion of the width direction x than the side joint portion 8. It is preferable that the elastic member 7 for standing up is provided.

When a non-woven fabric is used as each of the above-described sheets, it is preferable to use a spunbonded non-woven fabric, an air-through non-woven fabric, a point-bonded non-woven fabric, a melt-blow non-woven fabric, an air-laid non-woven fabric, an SMS non-woven fabric, or the like. The mass per unit area of each sheet is preferably 10 g / m ² or more, more preferably 12 g / m ² or more, preferably 40 g / m ² or less, and more preferably 30 g / m ² or less.

It is preferable that the diaper main body 2 is provided with elastic members 9 for legs extending in the front-rear direction y on both sides in the width direction x (see FIG. 1). By providing the elastic member 9 for the leg, gathers can be formed around the leg of the wearer to improve the fit around the leg and prevent lateral leakage.

The diaper body 2 may be provided with a waist elastic member 10 extending in the width direction x at the end portion in the front-rear direction y. The contraction force of the elastic member 10 for the waist forms waist gathers along the waist circumference of the wearer, and prevents excrement such as urine from leaking from the back side or the abdomen side.

As each elastic member described above, elastic elastic materials such as polyurethane threads, polyurethane films, and natural rubber, which are usually used for disposable diapers, can be used. The elastic member is preferably fixed with an adhesive such as a hot melt adhesive in a stretched state. For example, a polyurethane yarn having a fineness of 40 to 1,240 dtex is stretched to a magnification of 1.1 to 5.0 times, arranged, and fixed. As the adhesive, it is preferable to use a rubber-based hot melt adhesive. The magnification is 1.0 times in the non-stretched state.

The fastening tape 11 has a tape base material 12 and a hook member 13 provided on the tape base material 12. The shape of the fastening tape 11 is not particularly limited, and may be formed so as to extend outward in the width direction x from the side edge of the diaper body 2 in the width direction x. Although an enlarged plan view of the fastening tape is shown in FIG. 3, the fastening tape 11 shown in FIG. 3 has a fixing portion 18 attached to the diaper main body 2 and the fixing portion 18 outward in the width direction x. It has an extending intermediate portion 19 and a knob portion 20 extending outward in the width direction x from the intermediate portion 19 and having a shorter length in the front-rear direction y than the intermediate portion 19. Is provided with a hook member 13.

In FIGS. 1 and 3, two knob portions 20 are provided side by side in the front-rear direction y, but the number of knob portions 20 may be one or three or more. In FIGS. 1 and 3, one hook member 13 is provided on one knob portion 20, but a plurality of hook members 13 may be provided on one knob portion 20. In the latter case, the plurality of hook members 13 are provided apart from each other, preferably separated from each other in the width direction x.

As the tape base material 12, a non-woven fabric, a woven fabric, a knitted fabric, a resin film, a laminate thereof, or the like can be used. The tape base material 12 is preferably made of a woven fabric, a knitted cloth, or a non-woven fabric, and is made of a non-woven fabric, from the viewpoint of ensuring the rigidity of the tape base material 12 and improving the handleability of the fastening tape 11. Is more preferable.

When a non-woven fabric is used for the tape base material 12, spunbonded non-woven fabric, air-through non-woven fabric, point-bonded non-woven fabric, melt-blow non-woven fabric, air-laid non-woven fabric, SMS non-woven fabric and the like can be used. Is preferable, and it is more preferable to use a spunbonded non-woven fabric. If such a non-woven fabric is used, it becomes easy to obtain a high-strength tape base material. Further, the nonwoven fabric used for the tape base material 12 is preferably embossed, which imparts appropriate rigidity to the tape base material 12 and improves the handleability of the fastening tape 11.

The mass per unit area of the tape base material 12 is preferably 50 g / m ² or more, more preferably 55 g / m ² or more, more preferably 120 g / m ² or less, and even more preferably 100 g / m ² or less. When the mass per unit area of the tape base material 12 is 50 g / m ² or more, the tape base material 12 has sufficient rigidity, and the mass per unit area of the tape base material 12 is 120 g / m ² or less. If this is the case, the tape base material 12 does not become too thick and the handleability is improved.

As shown in FIG. 4, the hook member 13 has a base 14 and a plurality of engaging elements 15 projecting from the base 14, and the base 14 has a surface opposite to the surface on which the engaging element 15 is provided. It is adhered to the tape base material 12 by the adhesive portion 16. The shape of the engaging element 15 is not particularly limited, and examples thereof include a hook shape, an anchor shape, a mushroom shape, and a pillar shape. The hook member 13 is formed to be detachably attached to the front side portion (specifically, the fastening corresponding portion 21) of the diaper body 2.

As the fastening corresponding portion 21, a loop member of a hook-and-loop fastener is used, or the outer surface of the front side portion of the diaper body 2 is made of a material (for example, non-woven fabric, woven fabric, knitted fabric, etc.) that functions as a loop member. Can be used as the fastening corresponding portion 21. The disposable diaper 1 forms the disposable diaper 1 in the shape of pants by engaging the engaging element 15 of the hook member 13 provided on the fastening tape 11 with the fastening corresponding portion 21 on the front side portion of the diaper body 2. Can be worn.

In the hook member 13, a cut line and / or a recessed line 17 is formed on the base 14, and a non-bonded portion is formed without an adhesive portion 16 being provided at a position overlapping the cut line or the recessed line 17. FIG. 4 shows a cross-sectional view of the fastening tape 11 and shows a state in which the hook member 13 is adhered to the tape base material 12 by the adhesive portion 16. FIG. 5 shows an example of forming an adhesive portion 16 between the hook member 13 and the tape base material 12 in a state where the hook member 13 is removed in the enlarged plan view of the fastening tape 11 shown in FIG. In FIG. 5, the contour of the portion where the hook member 13 is provided and the formed portion of the cut line and / or the recessed line 17 are represented by a alternate long and short dash line. Note that FIG. 4 shows an example in which a cut line is formed on the base 14.

The hook member 13 is a disposable diaper in which a cut line and / or a recess line 17 is formed on the base 14, and a non-adhesive portion is formed at a position overlapping the cut line or the recess line 17 without providing an adhesive portion 16. When 1 is attached, the followability of the fastening tape 11 to the curved surface shape of the wearer's body surface is improved, and the fastening tape 11 can be stably fastened to the fastening corresponding portion 21 with good fit. .. That is, when the disposable diaper 1 is attached around the wearer's waist, the fastening tape 11 is curved along the shape of the wearer's waist, but the hook member 13 has relatively high rigidity. In the portion where the hook member 13 is provided, the followability to the curved surface shape of the wearer's body surface tends to decrease. The tape 11 can improve the followability to the curved surface shape at the portion where the hook member 13 is provided. Further, when the fastening tape 11 is fastened to the fastening corresponding portion 21, it becomes easy to finely adjust the fastening position of the hook member 13. Further, since the adhesive portion 16 is not provided at a position overlapping the notch line or the recess line 17, the fastening tape 11 is attached to the notch line or the recess line 17 in a state where the hook member 13 is fastened to the fastening corresponding portion 21. The degree of freedom to bend is increased. Further, even if the fastening tape 11 is bent at the notch line or the recessed line 17, the hook member 13 is unlikely to be unintentionally peeled off from the fastening corresponding portion 21 with the base 14 of the hook member 13 starting from the notch line or the recessed line 17. Become. Therefore, the fastening tape 11 can be fastened to the fastening corresponding portion 21 with good fit and stability.

The cut line and / or the recess line 17 is formed so as to extend linearly from the base 14 of the hook member 13 in a plan view. The cut line is formed so as to penetrate the base 14 in the thickness direction z, and the recess line does not pass through the base 14 in the thickness direction z, and the surface on which the engaging element 15 is provided is formed as a recess. When the cut line is formed on the base 14, one side and the other side of the base 14 sandwiching the cut line are arranged close to each other, and are arranged so as to be in contact with each other when, for example, the fastening tape 11 is bent. The separation distance between one side and the other side of the base 14 sandwiching the cut line is preferably 0.5 mm or less, more preferably 0.3 mm or less, still more preferably 0.1 mm or less. On the other hand, it is preferable that the tape base material 12 is not cut at a portion overlapping the cut line or the recess line 17. The cut line and / or the recessed line 17 cuts or squeezes the base 14 by attaching the hook member 13 to the tape base material 12 with the adhesive portion 16 and then applying a cutter blade to the base 14 of the hook member 13. Therefore, it can be easily formed.

It is preferable that a cut line is formed on the base 14. This increases the degree of freedom for the fastening tape 11 to bend at the notch line. In this case, both the cut line and the recessed line may be formed on the base 14, but preferably the total length of the cut line is formed longer than the total length of the recessed line. For example, the total length of the cut line is preferably 2 times or more, more preferably 3 times or more, still more preferably 5 times or more the total length of the recess line. It is particularly preferable that only the cut line is formed on the base 14.

The shape of the hook member 13, the extending direction of the cut line and / or the recessed line 17, and the arrangement position are not particularly limited. In FIGS. 1 and 3, the hook member 13 is formed in a substantially rectangular shape (substantially trapezoidal shape), but the hook member 13 may be formed in, for example, a circular shape, an elliptical shape, an arbitrary polygonal shape, an irregular shape, or the like. .. In FIGS. 1 and 3, the cut line and / or the recess line 17 is a straight line extending in the front-rear direction y across the base 14 in the front-rear direction y, that is, in the front-back direction y from the front side edge to the rear side edge of the basement 14. Although it is formed in a straight line extending, the cut line and / or the recess line 17 may be formed in a straight line extending in the width direction x, and is formed in a straight line extending diagonally with respect to the front-back direction y. It may be formed in a curved shape or a broken line shape. Further, only one cut line and / or a recessed line 17 may be provided, or a plurality of cut lines 17 may be provided. The cut line and / or the recess line 17 may be formed so as to intersect the outer edge of the base 14, or may be formed so as not to intersect the outer edge of the base 14.

FIG. 6 shows various examples of formation of the cut line and / or the recess line 17. In FIG. 6A, the cut line and / or the recess line 17 is formed in a straight line extending in the front-rear direction y, but is formed only in a part of the base 14 in the front-rear direction y. In FIG. 6B, the cut line and / or the recess line 17 is formed in a straight line extending in the width direction x. In FIG. 6 (c), the cut line and / or the recess line 17 is formed in a straight line inclined in one direction and the other direction with respect to the front-back direction y, and as a result, the cut line and / or the recess line 17 is inclined. It is formed in a square grid pattern. In FIG. 6D, the cut line and / or the recess line 17 are formed in a straight line extending in the front-rear direction y and in a straight line inclined in one direction and the other direction with respect to the front-back direction y, as a result. The cut line and / or the recess line 17 are formed in a triangular lattice pattern.

As shown in FIGS. 3 and 6A, if the cut line and / or the recess line 17 is formed in a straight line extending in the front-rear direction y, the hook member 13 is easily bent in the width direction x, and the disposable diaper is disposable. When 1 is attached, the fit of the fastening tape 11 around the waist of the wearer in the circumferential direction can be improved. Therefore, when the wearer rolls over or walks while wearing the disposable diaper 1, the hook member 13 is stably fastened to the fastening corresponding portion 21, and the hook member 13 is fixed to the fastening corresponding portion 21. It becomes difficult to peel off from 21. Further, even if a force for peeling off in the width direction x acts on the fastening tape 11, the hook member 13 is less likely to be unintentionally peeled off from the fastening corresponding portion 21.

As shown in FIG. 6B, if the cut line and / or the recess line 17 is formed in a straight line extending in the width direction x, the hook member 13 can easily bend in the front-rear direction y, and the disposable diaper 1 is attached. When this is done, it is possible to improve the fit of the fastener tape 11 in the vertical direction and the front-rear direction around the waist of the wearer. Therefore, when the wearer takes a leaning posture or applies force to the abdomen while wearing the disposable diaper 1, the hook member 13 is stably fastened to the fastening corresponding portion 21, and the hook member 13 is stopped. It becomes difficult to peel off from the wearable portion 21. Further, even if a force for peeling in the front-rear direction y acts on the fastening tape 11, the hook member 13 is less likely to be unintentionally peeled from the fastening corresponding portion 21.

As shown in FIG. 6 (c), if the cut line and / or the recess line 17 is formed in an oblique grid pattern, the hook member 13 is likely to bend in the diagonal direction with respect to the front-rear direction y. Therefore, when the wearer twists his / her waist diagonally or gets up from the lateral decubitus position while wearing the disposable diaper 1, the hook member 13 is stably fastened to the fastening corresponding portion 21 and the hook member 13 is attached. Is less likely to come off from the anchoring corresponding portion 21. Further, even if a force for peeling from the diagonal direction y in the front-rear direction acts on the fastening tape 11, the hook member 13 is less likely to be unintentionally peeled from the fastening corresponding portion 21.

As shown in FIG. 6D, if the cut line and / or the recess line 17 is formed in a triangular lattice shape, the hook member 13 can easily bend in the width direction x and its diagonal direction. Therefore, when the wearer performs various movements with the disposable diaper 1 attached, the hook member 13 is stably fastened to the fastening-corresponding portion 21, and the hook member 13 is stably fastened to the fastening-corresponding portion 21. It becomes difficult to peel off. Further, even if a force for peeling from the width direction x or the diagonal direction thereof acts on the fastening tape 11, the hook member 13 is less likely to be unintentionally peeled from the fastening corresponding portion 21.

The cut line and / or the recess line 17 is preferably formed so as to extend linearly. This makes it easier for the hook member 13 to smoothly bend at the notch line and / or the recess line 17. It is more preferable that the cut line and / or the recess line 17 is also formed so as to extend linearly from the front side edge to the rear side edge of the basement 14, that is, so as to extend linearly across the basement 14 in the front-rear direction y. If the cut line and / or the recess line 17 is formed in this way, the hook member 13 can easily bend in the width direction x along the circumferential direction around the wearer's waist. Therefore, when the disposable diaper 1 is worn, the fit of the fastening tape 11 to the wearer's waist can be improved. In this case, the cut line and / or the recess line 17 is preferably formed in a straight line extending substantially parallel to the front-back direction y, and the linear cut line and / or the recess line 17 is, for example, in the front-back direction. It preferably extends at an angle of 10 ° or less with respect to y, and more preferably extends at an angle of 5 ° or less. When the cut line and / or the recess line 17 is formed so as to extend in multiple directions, at least one cut line and / or the recess line 17 extends linearly from the front side edge to the rear side edge of the base 14. It suffices if it is formed as follows.

When the cut line and / or the recess line 17 is formed so as to extend linearly from the front side edge to the rear side edge of the base material 14, the adhesive portion 16 is formed in the width direction of the base material 14, as shown in FIGS. 4 and 5. It is preferable that it is not provided at both ends of x. As a result, when the hook member 13 is fastened to the fastening corresponding portion 21, even if a force that shifts in the width direction x acts on the hook member 13, the base 14 of the hook member 13 is unlikely to be peeled off from both ends thereof. Become. Therefore, the hook member 13 can be stably fastened to the fastening corresponding portion 21.

The adhesive portion 16 is preferably not provided within a range of at least 0.3 mm from a position overlapping the cut line or the recess line 17, more preferably not within a range of 0.5 mm, and a range of 1.0 mm. It is more preferable that it is not provided inside. In other words, the non-adhesive portion formed so as to overlap the cut line or the recess line 17 is preferably formed with a width of 0.6 mm or more along the cut line or the recess line 17, and is formed with a width of 1.0 mm or more. It is more preferable that the material is formed with a width of 2.0 mm or more. If the non-adhesive portion is formed at a position overlapping the cut line or the recess line 17 in this way, the fastening tape 11 can be more smoothly and stably fastened to the fastening corresponding portion 21. On the other hand, at least a part of the adhesive portion 16 is preferably provided within a range of 3.0 mm from a position overlapping the cut line or the recess line 17, and more preferably within a range of 2.5 mm. It is more preferable to provide it within the range of 0 mm. As a result, the hook member 13 can be stably adhered and fixed to the tape base material 12.

It is preferable that the cut line and / or the recess line 17 is formed in a straight line extending in the front-rear direction y, and the adhesive portion 16 is provided in a stripe shape extending in the front-rear direction y. Alternatively, it is also preferable that the cut line and / or the recess line 17 is formed in a straight line extending in the width direction x, and the adhesive portion 16 is provided in a stripe shape extending in the width direction x. If the cut line and / or the recess line 17 is formed in a straight line extending in one direction and the adhesive portion 16 is also provided in a striped shape extending in the same direction, the fastening tape 11 is provided with the hook member 13. It is possible to further enhance the followability to the curved surface shape at the formed portion, and further enhance the fit of the fastening tape 11 to the wearer's waist circumference. Further, the fastening tape 11 can be stably fastened to the fastening corresponding portion 21.

As shown in FIG. 3 and the like, when the hook member 13 is provided apart from the outer edge of the tape base material 12 in the width direction x (that is, the tip of the knob portion 20) in the width direction x, the cut line and / or The recess line 17 is formed so as to extend linearly from the front side edge to the rear side edge of the base 14, and the fastening tape 11 is formed from the outer edge of the hook member 13 in the width direction x to the width direction x of the tape base material 12. It is preferable that the length to the outer edge of the hook member 13 is longer than the length from the outer edge of the hook member 13 in the width direction x to the cut line and / or the recess line 17. If the fastening tape 11 is formed in this way, it becomes easier to pinch the tip of the knob portion 20, and the tip portion of the knob portion 20 bends along the outer edge of the hook member 13 in the width direction x to form the hook member. Even if the hook member 13 is erroneously fixed to the hook member 13, the tip portion of the knob portion 20 can be easily peeled off from the hook member 13 by bending the hook member 13 along the notch line and / or the recess line 17.

As shown in FIG. 3, the hook member 13 is divided into a plurality of regions in the width direction x by a notch line and / or a recess line 17, and the region on the inner side of the width direction x of the hook member 13 is the hook member 13. It is preferable that the length of the width direction x is longer than that of the region on the outer side of the width direction x. When the hook member 13 is formed in this way, when the fastening tape 11 is fastened to the fastening corresponding portion 21, the hook member 13 is stable to the fastening corresponding portion 21 in the region on the inner side in the width direction x. It becomes easy to finely adjust the fastening position of the hook member 13 in the region on the outer side in the width direction x. Further, even if a force that peels off from the outer side in the width direction x acts on the hook member 13, the region of the hook member 13 on the outer side in the width direction x formed so that the length in the width direction x is short is the said. By absorbing the force, the hook member 13 is less likely to be unintentionally peeled off from the fastening corresponding portion 21. When the hook member 13 is divided into three or more regions in the width direction x by the cut line and / or the recess line 17, the innermost region of the hook member 13 in the width direction x is the hook member. The length of the width direction x is formed longer than the outermost region of the width direction x of 13, and the adjacent regions are such that the inner region of the width direction x is the outer side of the width direction x. It suffices if it is formed so that the length of x in the width direction is not shorter than the region of.

The hook member 13 is divided into a plurality of regions in the width direction x by a notch line and / or a recess line 17, and the region on the inner side of the width direction x of the hook member 13 is the outer side of the width direction x of the hook member 13. It is also preferable that the area is formed wider than the area on the side. When the hook member 13 is formed in this way, when the fastening tape 11 is fastened to the fastening corresponding portion 21, the hook member 13 is stable to the fastening corresponding portion 21 in the region on the inner side in the width direction x. It becomes easy to finely adjust the fastening position of the hook member 13 in the region on the outer side in the width direction x. Further, even if a force that peels off from the outer side in the width direction x acts on the hook member 13, the region of the hook member 13 on the outer side in the width direction x formed with a narrow area absorbs the force. , The hook member 13 is less likely to be unintentionally peeled off from the fastening corresponding portion 21. When the hook member 13 is divided into three or more areas in the width direction x by the cut line and / or the recess line 17, the innermost area of the hook member 13 in the width direction x is the hook member. The area of 13 is formed wider than the outermost region of the width direction x, and the adjacent regions have an area of the inner region of the width direction x larger than the outer region of the width direction x. It suffices if it is formed so as not to narrow.

As shown in FIG. 7, the hook member 13 is divided into a plurality of regions in the width direction x by a notch line and / or a recess line 17, and the adhesive portion 16 in the region on the inner side of the width direction x of the hook member 13 It is also preferable that the hook member 13 is formed so as to have a larger ratio than the ratio of the adhesive portion 16 in the region on the outer side in the width direction x of the hook member 13. 7 shows a modified example of the adhesive tape 11 shown in FIGS. 3 and 5, FIG. 7 (a) shows an enlarged plan view of the adhesive tape, and FIG. 7 (b) is a diagram. An example of forming an adhesive portion between the hook member and the tape base material in the fastening tape shown in 7 (a) is shown. If the adhesive portion 16 is provided as shown in FIG. 7, the hook member 13 has high rigidity in the region on the inner side in the width direction x, and the rigidity in the region on the outer side in the width direction x is relatively low. Become. Therefore, when the fastening tape 11 is fastened to the fastening corresponding portion 21, the hook member 13 is stably fastened to the fastening corresponding portion 21 in the region on the inner side in the width direction x having high rigidity. It becomes easy to finely adjust the fastening position of the hook member 13 in the region on the outer side in the width direction x where the rigidity is low. Further, even if a force that peels off from the outer side in the width direction x acts on the hook member 13, the region of the hook member 13 on the outer side in the width direction x formed with low rigidity absorbs the force. , The hook member 13 is less likely to be unintentionally peeled off from the fastening corresponding portion 21. When the hook member 13 is divided into three or more regions in the width direction x by the cut line and / or the recess line 17, the adhesive portion in the innermost region of the width direction x of the hook member 13 The ratio of 16 is larger than the ratio of the adhesive portion 16 in the outermost region of the width direction x of the hook member 13, and the adjacent regions are bonded in the inner region of the width direction x. The ratio of the portions 16 may be formed so as not to be smaller than the ratio of the adhesive portions 16 in the region on the outer side in the width direction x.

When the hook member 13 is divided into a plurality of regions in the width direction x by the cut line and / or the recess line 17 as described above, the number of regions formed by the hook member 13 being divided in the width direction x is 2 to 5 is preferable, 4 or less is more preferable, and 3 or less is further preferable. As a result, the hook member 13 is stably adhered to the tape base material 12 in each region, and the hook member 13 is less likely to be peeled off from the tape base material 12.

When a plurality of hook members 13 are provided on the fastening tape 11, a cut line and / or a recess line 17 is formed on the base 14 of each hook member 13, and an adhesive portion 16 is provided at a position overlapping the cut line or the recess line 17. It is preferable that the non-adhesive portion is formed without being hooked. When the fastening tape 11 is formed in this way, when the fastening tape 11 is fastened to the fastening corresponding portion 21, the entire fastening tape 11 is covered by the plurality of hook members 13 at the wearer's waist. It can be arranged around with good fit, and it is possible to improve the followability of each hook member 13 to the curved surface shape of the wearer's body surface, and the fastening tape 11 is stably fixed to the fastening corresponding portion 21. You can wear it.

When a plurality of hook members 13 are provided, the arrangement pattern of the cut line and / or the recess line 17 formed in each hook member 13 may be the same or different. When the hook member 13 is formed so as to be divided into a plurality of areas in the width direction x by the cut line and / or the recess line 17, the hook member 13 provided on the tip end side of the fastening tape 11 has a width. The region on the outer side of the direction x is formed to have a shorter length or a smaller area in the width direction x than the region on the inner side, or the area ratio of the adhesive portion 16 is small, and is formed on the root side of the adhesive tape 11. In the hook member 13 provided, the area on the inner side in the width direction x is shorter in the width direction x than the area on the outer side in the width direction x, or the area is narrower, or the area ratio of the adhesive portion 16 is large. It is preferably formed small. By configuring the fastening tape 11 in this way, the hook member 13 on the tip side can finely adjust the fastening position of the hook member 13 by the region on the outer side in the width direction x, and the hook on the root side can be finely adjusted. The anchoring position of the hook member 13 can be finely adjusted by the region on the inner side in the width direction x of the member 13. The portion of the fastening tape 11 between the hook members 13 (that is, the portion where the hook member 13 is not provided) is the region on the inner side in the width direction x of the hook member 13 on the tip side and the hook member 13 on the root side. By stably fastening both hook members 13 to the fastening corresponding portion 21 at the region on the outer side in the width direction x, the wearer's waist circumference can be stably covered.

8 and 9 show a configuration example of the fastening tape 11 in which a plurality of hook members 13 (13A, 13B) are provided apart from each other in the width direction x. 8 (a) and 9 (a) are enlarged plan views of the adhesive tape, and FIGS. 8 (b) and 9 (b) are shown in FIGS. 8 (a) and 9 (a). An example of forming an adhesive portion between a hook member and a tape base material in a fastening tape is shown.

The fastening tape 11 shown in FIG. 8 is separated from the first hook member 13A and the first hook member 13A in the width direction x as the hook member 13, and is located inward in the width direction x from the first hook member 13A. It has a second hook member 13B provided, and the first hook member 13A and the second hook member 13B are divided into a plurality of regions in the width direction x by a notch line and / or a recess line 17. The region on the inner side of the width direction x of the first hook member 13A is formed to have a longer length in the width direction x than the region on the outer side of the width direction x of the first hook member 13A, and the second hook is formed. The region on the inner side of the width direction x of the member 13B is formed so that the length of the width direction x is shorter than the region on the outer side of the width direction x of the second hook member 13B. Alternatively, the area on the inner side of the width direction x of the first hook member 13A is formed to have a wider area than the area on the outer side of the width direction x of the first hook member 13A, and the area is formed in the width direction of the second hook member 13B. The area on the inner side of x is formed to be narrower than the area on the outer side in the width direction x of the second hook member 13B. The fastening tape 11 shown in FIG. 8 has a width direction x of the first hook member 13A having a long width direction x or a wide area when the fastening tape 11 is fastened to the fastening corresponding portion 21. The area on the inner side of the second hook member 13B and the area on the outer side in the width direction x of the second hook member 13B can be stably fixed to the fastening corresponding portion 21. For example, even if the portion of the fastening tape 11 between the first hook member 13A and the second hook member 13B is distorted, the distortion causes the first hook member 13A and the second hook member 13B to move from the fastening corresponding portion 21. It is less likely to come off. Further, even if a force of peeling from the outer side in the width direction x acts on the first hook member 13A, the length of the first hook member 13A in the width direction x is formed to be short or the area is narrow. The force is absorbed by the region on the outer side in the width direction x of the above, and the first hook member 13A is less likely to be unintentionally peeled off from the fastening corresponding portion 21. Similarly, even if a force of peeling from the inner side in the width direction x acts on the second hook member 13B, the length of the second hook member x in the width direction x is formed to be short or the area is narrow. The force is absorbed by the region on the inner side of the width direction x of 13B, and the second hook member 13B is less likely to be unintentionally peeled off from the fastening corresponding portion 21. The fastening tape 11 also facilitates fine adjustment of the fastening position of the first hook member 13A in the region on the outer side of the width direction x of the first hook member 13A, and facilitates fine adjustment of the fastening position of the first hook member 13A in the width direction of the second hook member 13B. It becomes easy to finely adjust the fastening position of the second hook member 13B in the region on the inner side of x.

The fastening tape 11 shown in FIG. 9 is separated from the first hook member 13A and the first hook member 13A in the width direction x as the hook member 13, and is located inward in the width direction x from the first hook member 13A. It has a second hook member 13B provided, and the first hook member 13A and the second hook member 13B are divided into a plurality of regions in the width direction x by a notch line and / or a recess line 17. Then, the ratio of the adhesive portion 16 in the region on the inner side in the width direction x of the first hook member 13A is larger than the ratio of the adhesive portion 16 in the region on the outer side in the width direction x of the first hook member 13A. The ratio of the adhesive portion 16 in the region on the inner side in the width direction x of the second hook member 13B is the ratio of the adhesive portion 16 in the region on the outer side in the width direction x of the second hook member 13B. Is formed smaller than. The fastening tape 11 shown in FIG. 9 is formed in the width direction x of the first hook member 13A formed so that the area ratio of the bonding portion 16 is high when the fastening tape 11 is fastened to the fastening corresponding portion 21. The area on the side and the area on the outer side in the width direction x of the second hook member 13B can be stably fixed to the fixing corresponding portion 21. For example, even if the portion of the fastening tape 11 between the first hook member 13A and the second hook member 13B is distorted, the distortion causes the first hook member 13A and the second hook member 13B to move from the fastening corresponding portion 21. It is less likely to come off. Further, even if a force of peeling from the tip end side of the knob portion 20 acts on the fastening tape 11, the width direction x of the first hook member 13A formed in which the area ratio of the adhesive portion 16 is low and the rigidity is relatively low. The force is absorbed by the region on the outer side of the hook member 13A, and the first hook member 13A is less likely to be unintentionally peeled off from the fastening corresponding portion 21. Similarly, even if a force of peeling from the root side of the knob portion 20 acts on the fastening tape 11, the area ratio of the adhesive portion 16 is low and the rigidity is relatively low in the width direction of the second hook member 13B. The force is absorbed by the region on the inner side of x, and the second hook member 13B is less likely to be unintentionally peeled off from the fastening corresponding portion 21. The fastening tape 11 also facilitates fine adjustment of the fastening position of the first hook member 13A in the region on the outer side of the width direction x of the first hook member 13A, and facilitates fine adjustment of the fastening position of the first hook member 13A in the width direction of the second hook member 13B. It becomes easy to finely adjust the fastening position of the second hook member 13B in the region on the inner side of x.

1: Disposable diaper 2: Diaper body 3: Top sheet 4: Back sheet 5: Absorber 11: Fastening tape 12: Tape base material 13: Hook member, 13A: First hook member, 13B: Second hook member 14: Base 15: Engagement element 16: Adhesive part 17: Cut line and / or recess line 18: Fixed part 19: Intermediate part 20: Knob part 21: Fastening corresponding part

Claims (9)

A disposable diaper that has a width direction and a front-back direction and is provided with fastening tapes on both sides of the diaper body in the width direction.
The fastening tape has a tape base material and a hook member provided on the tape base material.
The hook member has a base and a plurality of engaging elements protruding from the base, and the base is adhered to the tape base material at an adhesive portion.
A disposable diaper characterized in that a cut line and / or a recessed line is formed on the substrate, and the bonded portion is not provided at a position overlapping the cut line or the recessed line, and a non-adhesive portion is formed. The disposable diaper according to claim 1, wherein the adhesive portion is not provided within a range of at least 0.3 mm from a position where the cut line or the recess line overlaps. The disposable diaper according to claim 1 or 2, wherein the cut line and / or the recess line is formed so as to extend linearly from the front side edge to the rear side edge of the base material. The disposable diaper according to claim 3, wherein the adhesive portion is not provided at both ends in the width direction of the substrate. The hook member is provided so as to be separated from the outer edge of the tape base material in the width direction in the width direction.
The length from the outer edge in the width direction of the hook member to the outer edge in the width direction of the tape base material is the length from the outer edge in the width direction of the hook member to the cut line and / or the recess line. The disposable diaper according to claim 3 or 4, which is longer than that. The hook member is divided into a plurality of regions in the width direction by the cut line and / or the recess line.
One of claims 1 to 5, wherein the region on the inner side in the width direction of the hook member is formed to have a longer length in the width direction than the region on the outer side in the width direction of the hook member. Disposable diapers listed in. The hook member is divided into a plurality of regions in the width direction by the cut line and / or the recess line.
The disposable according to any one of claims 1 to 6, wherein the area on the inner side in the width direction of the hook member is formed to have a wider area than the area on the outer side in the width direction of the hook member. Diapers. The hook member is divided into a plurality of regions in the width direction by the cut line and / or the recess line.
Any of claims 1 to 7, wherein the ratio of the adhesive portion in the region on the inner side in the width direction of the hook member is larger than the ratio of the adhesive portion in the region on the outer side in the width direction of the hook member. The disposable diaper described in item 1. As the hook member, the fastening tape includes a first hook member and a second hook member that is separated from the first hook member in the width direction and is provided inward in the width direction from the first hook member. Have,
The first hook member and the second hook member are divided into a plurality of regions in the width direction by the cut line and / or the recess line.
The ratio of the adhesive portion in the region on the inner side in the width direction of the first hook member is larger than the ratio of the adhesive portion in the region on the outer side in the width direction of the first hook member.
Claim 1 that the ratio of the adhesive portion in the region on the inner side in the width direction of the second hook member is smaller than the ratio of the adhesive portion in the region on the outer side in the width direction of the second hook member. The disposable diaper according to any one of 5 to 5.

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