JP7358146B2 - disposable diapers - Google Patents

Description

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

Conventionally, disposable diapers equipped with fastening tapes are widely known. For example, Patent Document 1 discloses a disposable diaper including fastening tapes on both sides of the main body, the fastening tape having a first fastening part and a second fastening part from the tip side, and a first fastening part and a second fastening part. Disclosed is a disposable diaper in which a fastening tape is folded back between a fastening part and a second fastening part. Patent Document 2 discloses a disposable diaper including a base sheet provided with fastening means on both sides of the back side of the diaper, the base sheet having a distal end opening and a proximal opening. The base sheet is bent inward between the distal end fixing means and the distal opening, and the folded base sheet is further folded outward between the distal opening and the proximal opening. As a result, the distal end opening and the proximal opening overlap, and a disposable diaper is provided in which the base sheet can be temporarily fixed to the ventral outer surface of the diaper via the fastening means facing from the overlapping opening. Disclosed.

Japanese Patent Application Publication No. 2011-147712 Japanese Patent Application Publication No. 2014-193208

It is desirable that tape-type disposable diapers be worn with appropriate tightness around the wearer's waist. Thereby, leakage of excrement from the disposable diaper can be prevented, and the feeling of wearing the disposable diaper can be improved. From this point of view, it is preferable that the tape-type disposable diaper is configured such that the fastening position can be easily adjusted so that the fastening tape can be fastened at an appropriate position when the diaper is worn.

The present invention has been made in view of the above circumstances, and its purpose is to provide a disposable product that can easily adjust the attachment position of the attachment tape and properly attach the attachment tape during installation. It's about providing diapers.

The disposable diaper of the present invention that can solve the above problems is a disposable diaper that has a width direction and a front-back direction, and has fastening tapes attached to both sides of the diaper body in the width direction, and has fastening tapes. comprises a fixing part formed at one end of the tape base material and attached to the diaper body, a tab part formed at the other end of the tape base material, and an intermediate part located between the fixing part and the tab part. The grip portion is provided with a first fastener and a second fastener closer to the diaper body than the first fastener, and an opening is formed between the first fastener and the second fastener. It is characterized by the fact that it is

In the disposable diaper of the present invention, since an opening is formed between the first fastener and the second fastener of the grip portion of the fastening tape, the grip portion can be connected between the first fastener and the second fastener. By folding the first fastener and the second fastener inward, the second fastener can be exposed through the opening. By handling the fastening tape in this way, when putting on a disposable diaper, the second fastener exposed from the opening can be temporarily fastened to the diaper body, and the fastening tape can be fastened to the diaper body. It becomes easy to adjust the position appropriately. At this time, since the second fastener is exposed through the opening, the second fastener is fastened to the diaper body with a relatively weak force, making it easy to adjust the fastening position of the fastening tape. Become. Once the fastening position of the fastening tape is determined, release the temporary fastening of the fastening tape, unfold the fold at the knob part, and refasten the first and second fasteners. A disposable diaper can be appropriately worn around the wearer's waist.

In the disposable diaper of the present invention, the fastening tape may be folded back in advance at the grip portion. In this case, the tab of the fastening tape is folded back at the first fold formed between the first fastener and the second fastener, with the first fastener and the second fastener inside, and the opening is closed. It overlaps with the second fastener. If the fastening tape is folded back at the first fold in advance in this way, when putting on the disposable diaper, the second fastener can be opened by using the fastening tape without unfolding the first fold. It can be easily temporarily attached to the diaper body through the section.

Preferably, the first fold line is formed between the second fastener and the opening. This prevents creases from forming in the opening, making it easier to ensure the rigidity of the knob. In addition, the folded portion of the tab portion folded back at the first fold becomes easy to pick up by hand, and the fastening tape becomes easy to handle.

The fastening tape may be further folded back along the side edges in the width direction of the diaper main body. In this case, the middle part of the fastening tape is folded back with the folded tabs inside at the second fold formed closer to the diaper body than the tip of the folded tabs, and the second fastener is opened. It is preferable that the diaper body is temporarily fastened to the diaper body via a portion. By folding the fastening tape in this manner, the first fastener and the second fastener are less likely to be unintentionally joined to other members before the disposable diaper is used, and the handling of the diaper is improved. Further, by temporarily fastening the second fastener to the diaper main body through the opening, the folded state of the fastening tape is suitably maintained.

The second fastener is preferably provided so as to cross the grip portion of the tape base material in the front-rear direction, and the grip portion is preferably formed such that the length in the front-rear direction becomes shorter toward the tip. If the fastening tape is formed in this way, when the fastening tape is folded back at the first fold, the end portion of the second fastener in the front and rear direction will be exposed without overlapping the folded-back knob portion, and The ends of the second fastener in the front-rear direction also contribute to temporary fastening to the diaper main body. Therefore, the fastening tape can be stably temporarily fastened to the diaper main body.

The tape base material is preferably made of a nonwoven fabric having a mass per unit area of 50 g/m ² or more. As a result, the tape base material has sufficient rigidity, and the handling of the fastening tape is improved. Moreover, it becomes easy to fold back the fastening tape at the grip portion or the middle portion.

In the disposable diaper of the present invention, the fastening tape is folded back between the first fastener and the second fastener with the first fastener and the second fastener inside, so that the second fastener can be inserted through the opening. can be exposed. By handling the fastening tape in this way, when putting on a disposable diaper, the second fastener exposed from the opening can be temporarily fastened to the diaper body, and the fastening tape can be fastened to the diaper body. It becomes easy to adjust the position appropriately. At this time, since the second fastener is exposed through the opening, the second fastener is fastened to the diaper body with a relatively weak force, making it easy to adjust the fastening position of the fastening tape. Become. Once the fastening position of the fastening tape is determined, release the temporary fastening of the fastening tape, unfold the fold at the tab, and refasten the first and second fasteners. , the disposable diaper can be appropriately worn around the wearer's waist.

1 is a plan view of the disposable diaper of the present invention viewed from the skin side. 2 is a sectional view taken along line II-II of the disposable diaper shown in FIG. 1. FIG. 2 is an enlarged plan view of the fastening tape of the disposable diaper shown in FIG. 1. FIG. 3 shows a cross-sectional view taken along line IV-IV in FIG. 3. FIG. 4 is a plan view of the fastening tape shown in FIG. 3 folded back at the first fold. 5 shows a VI-VI cross-sectional view of FIG. 5. FIG. 6 is a plan view of the fastening tape shown in FIG. 5 further folded back at a second fold. 7 is a cross-sectional view taken along line VIII-VIII in FIG. 7.

The disposable diaper of the present invention will be explained with reference to the drawings. Note that the present invention is not limited to the embodiments shown in the drawings.

FIGS. 1 to 4 show an example of the disposable diaper of the present invention. FIG. 1 shows a plan view of the disposable diaper seen from the skin side, and FIG. 2 shows a sectional view taken along line II-II of the disposable diaper shown in FIG. FIG. 3 shows an enlarged plan view of the fastening tape of the disposable diaper shown in FIG. 1, and FIG. 4 shows a sectional view taken along line IV-IV in FIG. In the figures of this application, arrow x represents the width direction, arrow y represents the front-rear direction, and the direction perpendicular to the plane formed by arrows x and y represents the thickness direction z. 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.

The disposable diaper 1 includes a diaper body 2 and fastening tapes 21 attached to both sides of the diaper body 2 in the width direction x. The diaper body 2 has a front side part, a rear side part, and a crotch part located between these parts, and fastening tapes 21 are attached to both sides of the rear side part of the diaper body 2. When wearing the disposable diaper 1, the front side is placed on the wearer's abdomen, the crotch area is placed on the wearer's crotch area, and the back side is placed on the wearer's back, and the fastening tape 21 is placed on the front side of the diaper body 2. By attaching it to the body, it can be formed into the shape of pants and used. For example, a fastening support portion 10 is provided on the outer surface of the front side portion of the diaper main body 2, and the diaper is worn by fastening the fastening tape 21 to the fastening support portion 10.

The disposable diaper 1 has a front-back direction y and a width direction x. The front-back direction y corresponds to the direction extending in the front-back direction of the wearer's crotch when wearing the disposable diaper. The width direction x means a direction that is on the same plane as the disposable diaper and perpendicular to the front-back direction y, and corresponds to the left-right direction of the wearer when wearing the disposable diaper. In addition, in the present invention, the skin side of a disposable diaper means the side facing the wearer's skin when wearing the disposable diaper, and the outside side of the disposable diaper means the side facing the wearer when wearing the disposable diaper. It means the side facing away from you.

The diaper main body 2 has a top sheet 3, a back sheet 4, and an absorbent body 5 disposed between them. The top sheet 3 is a sheet located on the wearer's 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. Urine etc. excreted by the wearer pass through the top sheet 3 and are stored in the absorbent body 5. The back sheet 4 prevents excrement from leaking to the outside.

The top sheet 3 is preferably liquid-permeable, and may be made of, for example, a nonwoven fabric made of hydrophilic fibers such as cellulose, rayon, or cotton, polyolefin (e.g., polypropylene, polyethylene), polyester (e.g., PET), polyamide ( For example, a nonwoven fabric made of hydrophobic fibers such as nylon, the surface of which has been rendered hydrophilic with a surfactant, can be used. Further, as the top sheet 3, a woven fabric, a knitted fabric, a perforated resin film, etc. may be used.

The back sheet 4 is preferably liquid-impermeable, and may be a nonwoven fabric made of hydrophobic fibers such as polyolefin (e.g., polypropylene, polyethylene), polyester (e.g., PET), polyamide (e.g., nylon), or a resin film. etc. can be used. Further, as the backsheet 4, a laminate of a nonwoven fabric and a film may be used.

The absorbent body 5 is not particularly limited as long as it contains an absorbent material that can absorb excrement such as urine. As the absorbent body 5, for example, a molded body made of an absorbent material molded 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 nonwoven fabric. can be used. Examples of the absorbent material include hydrophilic fibers such as pulp fibers, water absorbent resins such as polyacrylic acid-based, polyaspartic acid-based, cellulose-based, starch-acrylonitrile-based, and the like. Further, the water-absorbing material may include polyolefin fibers such as polyethylene and polypropylene, heat-fusible fibers such as polyester fibers such as PET, and polyamide fibers. These heat-fusible fibers may be subjected to a hydrophilic treatment using a surfactant or the like in order to increase their affinity with urine and the like.

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

The absorbent body 5 may be a sheet-like absorbent body. Examples of the sheet-like absorbent body include those formed so as to have a water-absorbing resin between nonwoven fabrics and no pulp fibers. The sheet-like absorbent body formed in this way has a water-absorbing resin between the nonwoven fabrics, and therefore can realize a high absorption capacity. Furthermore, since the sheet-like absorbent body does not have pulp fibers between the nonwoven 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 absorbent body (or the molded body constituting the absorbent body) may be appropriately determined depending on the use, and examples thereof include a rectangular shape, an hourglass shape, a gourd shape, and a battledore shape. In addition, the absorbent body or the molded body that constitutes the absorbent body is preferably formed in an hourglass shape in order to prevent the absorbent body from becoming distorted even when it is pinched between the wearer's thighs and compressed in the width direction. preferable.

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

It is preferable that the side sheet 6 has rising flaps 7 formed on both sides of the top sheet 3 in the width direction x. In this case, as shown in FIG. 2, it is preferable that the side sheet 6 is provided with an upright elastic member 8 extending in the front-rear direction y at a portion inward in the width direction x from the joint 9 with the top sheet 3. The inner portion of the side sheet 6 is raised by the contractile force of the rising elastic member 8, and a rising flap 7 can be formed. By providing the rising flap 7, side leakage of urine, etc. can be prevented. The inner surface of the end portion of the rising flap 7 in the front-rear direction y may be joined to the top sheet 3, thereby making it easier for the rising flap 7 to rise toward the wearer's skin when the diaper is put on.

When using a nonwoven fabric as each sheet described above, it is preferable to use spunbond nonwoven fabric, air-through nonwoven fabric, point bonded nonwoven fabric, melt blown nonwoven fabric, airlaid nonwoven fabric, SMS nonwoven fabric, etc. as the nonwoven fabric. The mass per unit area of each sheet is preferably 10 g/m ² or more, more preferably 12 g/m ² or more, and preferably 40 g/m ² or less, more preferably 30 g/m ² or less.

It is preferable that the diaper main body 2 is provided with leg elastic members 11 extending in the front-rear direction y on both sides of the width direction x (see FIG. 1). By providing the leg elastic members 11, gathers can be formed around the wearer's legs to improve the fit around the legs and prevent side leakage.

The diaper main body 2 may be provided with a waist elastic member 12 extending in the width direction x at an end in the front-rear direction y. The contractile force of the waist elastic member 12 forms waist gathers around the wearer's torso, thereby preventing leakage of urine and other excreta from the back and abdomen.

As each of the elastic members described above, elastic stretchable materials commonly used in disposable diapers, such as polyurethane thread, polyurethane film, and natural rubber, can be used. Preferably, the elastic member is fixed in a stretched state with an adhesive such as a hot melt adhesive. For example, a polyurethane thread with a fineness of 40 to 1,240 dtex is stretched at a magnification of 1.1 to 5.0 times and fixed. As the adhesive, it is preferable to use a rubber-based hot melt adhesive. Note that the magnification is 1.0 times in the non-expanded state.

As shown in FIGS. 3 and 4, the fastening tape 21 includes a tape base material 22 and fasteners 25 and 26 provided on the tape base material 22. The tape base material 22 has a first surface 23 on which fasteners 25 and 26 are provided, and a second surface 24 opposite to the first surface 23. When the fastening tape 21 is unfolded without being folded, the first surface 23 corresponds to the skin-side surface of the tape base material 22, and the second surface 24 corresponds to the outer surface of the tape base material 22. The fastening tape 21 has a fixing part 27 formed at one end of the tape base material 22 and attached to the diaper body 2, a tab part 29 formed at the other end of the tape base material 22, and a fixing part 27 and the tab. and an intermediate portion 28 located between the portions 29. In the fastening tape 21, a fixing part 27, an intermediate part 28, and a grip part 29 are divided in the width direction x.

As the tape base material 22, nonwoven fabric, woven fabric, knitted fabric, resin film, or a laminate of these can be used. In addition, from the viewpoint of improving the adhesiveness between the tape base material 22 and the diaper body 2, the tape base material 22 is preferably composed of a woven fabric, a knitted fabric, or a nonwoven fabric, and is preferably composed of a nonwoven fabric. More preferred. Further, by forming the tape base material 22 from a nonwoven fabric, it becomes easy to fold back the tape base material 22.

When using a nonwoven fabric for the tape base material 22, spunbond nonwoven fabric, air-through nonwoven fabric, point bond nonwoven fabric, melt blown nonwoven fabric, airlaid nonwoven fabric, SMS nonwoven fabric, etc. can be used. It is preferable to use a spunbond nonwoven fabric, and it is more preferable to use a spunbond nonwoven fabric. If such a nonwoven fabric is used, it becomes easier to obtain a tape base material with high strength. Further, the nonwoven fabric used for the tape base material 22 is preferably embossed, which imparts rigidity to the tape base material 22 and improves the handling of the fastening tape 21.

The mass per unit area of the tape base material 22 is preferably 50 g/m ² or more, more preferably 55 g/m ² or more, and preferably 120 g/m ² or less, and more preferably 100 g/m ² or less. If the mass per unit area of the tape base material 22 is 50 g/m ² or more, the tape base material 22 will have sufficient rigidity, and even if an opening is formed in the tape base material 22 as described later, the tape base material 22 will have sufficient rigidity. The fastening tape 21 becomes less likely to be distorted. If the mass per unit area of the tape base material 22 is 120 g/m ² or less, the tape base material 22 will not become too thick and ease of handling will be improved.

The fixing portion 27 is a portion formed at one end of the tape base material 22 and attached to the diaper main body 2. The fixing part 27 is fixed to the diaper main body 2 by a bonding means such as an adhesive, thermal welding, or ultrasonic welding. As shown in FIG. 4, the fixing portion 27 of the tape base material 22 is preferably disposed between the side sheet 6 and the back sheet 4, thereby stably attaching the fastening tape 21 to the diaper body 2. I can do it.

The grip portion 29 is a portion formed at the other end of the tape base material 22, and the grip portion 29 is provided with a first fastener 25 and a second fastener 26. In the drawing, one fastening tape 21 is provided with two tabs 29, but one fastening tape 21 may be provided with only one tab 29, or three or more may be provided. Good too.

The first fastener 25 and the second fastener 26 are provided on the first surface 23 of the tape base material 22. The second fastener 26 is provided closer to the diaper main body 2 than the first fastener 25. Specifically, the second fastener 26 is spaced apart from the first fastener 25 and is provided closer to the diaper main body 2 than the first fastener 25 is. In the fastening tape 21, it is preferable that no fasteners are provided on the second surface 24 of the tape base material 22, and it is preferable that the fasteners be provided only on the grip portion 29.

As the first fastener 25 and the second fastener 26, a hook-and-loop fastener or adhesive tape can be used. The first fastener 25 and the second fastener 26 are formed to be detachable from the fastening corresponding part 10 provided on the front side of the diaper main body 2. As the hook-and-loop fastener, a hook member or a loop member of a hook-loop fastener can be used. When hook members of a hook-and-loop fastener are used as the fasteners 25 and 26, a loop member of the hook-and-loop fastener is provided on the outer surface of the front side of the diaper body 2 as the fastening corresponding part 10, or The outer surface may be made of a material (for example, nonwoven fabric, woven fabric, knitted fabric, etc.) that functions as a loop member, and this may be used as the fastening corresponding portion 10. When adhesive tape is used as the fasteners 25 and 26, a resin film may be provided on the outer surface of the front side of the diaper body 2 as the fastening corresponding portion 10, or the outer surface of the front side of the diaper body 2 may be formed of a resin film. However, this may also be used as the fastening support section 10. A hook member of a hook-and-loop fastener is configured by, for example, a large number of hooks having shapes such as an anchor shape, a hook shape, a mushroom shape, etc. protruding from a base.

The intermediate portion 28 is a portion formed between the fixing portion 27 and the knob portion 29. The intermediate portion 28 is a portion between the fixing portion 27 and the tab portion 29, and corresponds to a portion that is not attached to the diaper main body 2 and is not provided with fasteners 25 and 26. The fixing part 27 and the intermediate part 28 are divided by the outer edge in the width direction x of the part where the tape base material 22 is attached to the diaper main body 2. The knob portion 29 and the intermediate portion 28 are separated by the side edge of the second fastener 26 on the diaper body 2 side (inner edge in the width direction x).

The fastening tape 21 has an opening 31 formed in the grip portion 29, and the opening 31 is provided between the first fastener 25 and the second fastener 26. Since the fastening tape 21 has the opening 31 formed in this way, the knob part 29 can be attached to the part between the first fastener 25 and the second fastener 26 (specifically, the second fastener of the knob part 29). By folding the first fastener 25 and the second fastener 26 inward at the part between the fitting 26 and the opening 31 or the part overlapping the opening 31, the second fastener 26 can be inserted through the opening 31. can be exposed. By handling the fastening tape 21 in the disposable diaper 1 in this way, the second fastener 26 exposed from the opening 31 can be temporarily fastened to the fastening corresponding part 10 of the diaper main body 2 when the diaper is put on. I can do it. At this time, the first fastener 25 can be in a non-exposed state, and the second fastener 26 is joined to the fastening corresponding part 10 of the diaper main body 2 through the opening 31, so that the fastening tape 21 is not exposed. It can be fastened to the fastening corresponding part 10 with a weak force. Therefore, when putting on the disposable diaper 1, it becomes easy to adjust the fastening position of the fastening tapes 21 provided on both sides of the diaper main body 2 in the width direction x to the fastening corresponding parts 10. Once the fastening position of the fastening tape 21 is determined, the temporary fastening of the fastening tape 21 is released one by one and the fastening tape 21 is fixed to the fastening corresponding part 10 again. By unfolding the flap and securing the first fastener 25 and the second fastener 26 to the fastening corresponding part 10, the disposable diaper 1 can be tightened around the wearer's waist in a well-balanced and moderate manner. It becomes easier to install.

5 and 6 show an example of the fastening tape 21 shown in FIGS. 3 and 4 in a state where the second fastener 26 is exposed from the opening 31 by being folded back at the tab 29. FIG. 5 shows a plan view of the fastening tape 21 folded back at the grip portion 29 as seen from the skin side, and FIG. 6 shows a sectional view taken along line VI-VI in FIG.

In FIGS. 5 and 6, the fastening tape 21 has the first fastener 25 and the second fastener 26 inward at the first fold F1 formed between the first fastener 25 and the second fastener 26. The opening 31 is folded back so as to overlap the second fastener 26. By folding back the fastening tape 21 in this way, the disposable diaper 1 can temporarily fasten the second fastener 26 exposed from the opening 31 to the fastening corresponding part 10 during wearing. At this time, since the second fastener 26 is exposed through the opening 31, the second fastener 26 is fastened to the fastening corresponding part 10 with a relatively weak force, and the fastening tape 21 is fastened. It becomes easy to adjust the position of attachment to the portion 10.

The shape and size of the opening 31 are not particularly limited as long as it is formed between the first fastener 25 and the second fastener 26 of the knob 29 . The shape of the opening 31 may be circular as shown in FIGS. 3 and 5, or may be an ellipse, an ellipse, a semicircle, or a polygon such as a triangle or a quadrangle. As for the size of the opening 31, for example, the length in the width direction x and the front-rear direction y is preferably 5 mm or more, more preferably 7 mm or more, and preferably 30 mm or less, more preferably 25 mm or less, and even more preferably 20 mm or less. The fastening tape 21 may have openings other than the grip portion 29 of the tape base material 22, but in order to ensure the strength of the fastening tape 21, the opening portion 31 is provided only in the grip portion 29. is preferred.

It is preferable that the fastening tape 21 is folded back at the first fold line F1 in advance. That is, the knob portion 29 is folded back at the first fold F1 formed between the first fastener 25 and the second fastener 26 with the first fastener 25 and the second fastener 26 inside, and the opening is closed. 31 is preferably overlapped with the second fastener 26. If the fastening tape 21 is folded back in advance at the first fold F1 in this way, when the disposable diaper 1 is worn, the fastening tape 21 can be used without unfolding the first fold F1. The second fastener 26 can be easily temporarily fixed to the fastening corresponding part 10 through the opening 31.

When the fastening tape 21 is folded back at the first fold F1 in advance, the first fastener 25 is preferably temporarily fastened to the intermediate portion 28, and more specifically, the first fastener 25 is temporarily fastened to the tape base material 22 of the middle portion 28. It is preferable that the As a result, when the fastening tape 21 is temporarily fastened to the fastening corresponding part 10, the state in which the tab portion 29 is folded back at the first fold F1 is maintained, and the fastening tape 21 can be easily handled. In this case, the first fastener 25 is made of a hook member of a hook-and-loop fastener, and the tape base material 22 is made of a nonwoven fabric, since it is easy to temporarily fasten the first fastener 25 to the tape base material 22. It is preferable.

When the fastening tape 21 is folded back in advance at the first fold F1, it is preferable that the second fastener 26 is temporarily fastened to the grip portion 29, and more specifically, the second fastener 26 is temporarily fastened to the tape base material 22 of the grip portion 29. It is preferable that the Thereby, the state where the second fastener 26 is exposed from the opening 31 is maintained, and it becomes easy to temporarily fasten the second fastener 26 to the fastening corresponding part 10 via the opening 31. In this case, the second fastener 26 is made of a hook member of a hook-and-loop fastener, and the tape base material 22 is made of a nonwoven fabric, in order to facilitate temporary fastening of the second fastener 26 to the tape base material 22. It is preferable.

It is preferable that the second fastener 26 is provided so as to cross the grip portion 29 of the tape base material 22 in the front-rear direction y. By providing the second fastener 26 in this manner, when the fastening tape 21 is folded back at the first fold line F1, the area in which the second fastener 26 can be temporarily fastened to the grip portion 29 can be increased. In this case, if the grip portion 29 is formed so that the length in the front-rear direction y becomes shorter as it approaches the tip 30, when the fastening tape 21 is folded back at the first fold F1, the second fastener 26 The end portion in the front-rear direction y is exposed without overlapping the folded knob portion 29. Therefore, by forming the second fastener 26 and the knob part 29 in this way, when the fastening tape 21 is folded back at the first fold F1 and temporarily fastened to the fastening corresponding part 10, the second fastener 26 can be temporarily fixed to the fastening corresponding part 10 through the opening 31, and the end of the second fastener 26 in the front-rear direction y can also be temporarily fixed to the fastening corresponding part 10. As a result, the fastening tape 21 can be temporarily fastened to the fastening corresponding part 10 more stably.

The first fold F1 is preferably formed between the second fastener 26 and the opening 31. This eliminates the need to form the opening 31 excessively large, and since no creases are formed in the opening 31, the rigidity of the knob 29 can be easily ensured. In addition, the folded portion of the tab portion 29 folded back at the first fold line F1 (that is, the portion of the folded tab portion 29 near the first fold line F1) can be easily picked up by hand, and the handling of the fastening tape 21 is improved. Becomes good.

The first fold F1 is preferably formed along the outer edge of the second fastener 26 in the width direction x, and for example, extends outward in the width direction x from the outer edge of the second fastener 26 in the width direction x. It is preferably formed within 3 mm, and more preferably within 2 mm. Since the first fold F1 is formed in this way, it becomes easy to pick up the tab portion 29 folded back at the first fold F1 by hand, and the fastening tape 21 becomes easy to handle. In this case, it is preferable that the outer edge of the second fastener 26 in the width direction x is formed to extend linearly in the front-rear direction y.

The second fastener 26 is preferably constructed from a hook member of a hook-and-loop fastener, since it is easy to temporarily fasten the second fastener 26 exposed from the opening 31 to the fastening corresponding part 10. Since the hook member of the hook-and-loop fastener is configured with the hook protruding from the base, if the second fastener 26 is composed of the hook member of the hook-and-loop fastener, the hook of the hook member will protrude from the opening 31, and the second fastener will protrude from the opening 31. It becomes easier for the tool 26 to engage with the fastening corresponding part 10.

Before use, the fastening tape 21 may be further folded back at the second fold F2 from the state shown in FIGS. 5 and 6, as shown in FIGS. 7 and 8. FIG. 7 shows a view of the fastening tape 21 shown in FIG. 5 further folded back at the second fold F2 and viewed from the skin side, and FIG. 8 shows a sectional view taken along line VIII-VIII in FIG.

In FIGS. 7 and 8, the intermediate portion 28 of the fastening tape 21 folds the folded tab 29 inward at a second fold F2 formed closer to the diaper body 2 than the tip 30 of the folded tab 29. It has been folded over. At this time, since the second fastener 26 of the fastening tape 21 is exposed from the opening 31, the second fastener 26 is inserted through the opening 31 by folding back the fastening tape 21 at the second fold F2. It can be temporarily fastened to the diaper body 2. In FIG. 8, the second fastener 26 is shown separated from the side sheet 6 of the diaper main body 2 via the opening 31, but by pressing the second fastener 26 against the side sheet 6 side, the second fastener 26 can be The tool 26 can be temporarily fixed to the side seat 6 through the opening 31. By folding the fastening tape 21 in this way, the first fastener 25 and the second fastener 26 are less likely to be unintentionally joined to other members before the disposable diaper 1 is used, and the handling of the diaper is improved. . Further, by temporarily fastening the second fastener 26 to the diaper main body 2 through the opening 31, the folded state of the fastening tape 21 is suitably maintained.

The second fold F2 is preferably formed along the side edge of the diaper body 2 in the width direction x, and for example, is formed within 3 mm outward in the width direction x from the side edge of the diaper body 2 in the width direction x. It is preferable that the distance is 2 mm or less, and it is more preferable that the distance is within 2 mm. Thereby, the fastening tape 21 can be folded compactly so as to overlap the diaper main body 2.

When using the diaper, as shown in FIGS. 7 and 8, the fastening tape 21 is folded back at the first fold F1 and the second fold F2, then the second fastener 26 is temporarily unfastened, and The folding tape 21 at the second fold line F2 is unfolded, and the second fastener 26 is exposed from the opening 31 as shown in FIGS. 5 and 6. In this state, the diaper main body 2 is applied to the wearer's crotch, the fastening tape 21 is temporarily fastened to the fastening corresponding part 10, and the fastening position of the fastening tape 21 is adjusted according to the wearer's body shape. . Thereafter, the fastening tape 21 is folded back at the first fold line F1, and the fastening tape 21 is refastened to the fastening corresponding part 10 using the first fastener 25 and the second fastener 26. 1 can be installed properly.

1: Disposable diaper 2: Diaper body 3: Top sheet 4: Back sheet 5: Absorbent body 21: Fastening tape 22: Tape base material 25: First fastener 26: Second fastener 27: Fixing part 28: Intermediate part 29: Knob section 30: Tip (of the knob section) 31: Opening section F1: First fold F2: Second fold

Claims (6)

A disposable diaper that has a width direction and a front-back direction, and has fastening tapes attached to both sides of the diaper body in the width direction,
The fastening tape is located at one end of the tape base material, a fixing part attached to the diaper body, a tab part formed at the other end of the tape base material, and between the fixing part and the tab part. having a middle part;
The knob portion is provided with a first fastener and a second fastener closer to the diaper body than the first fastener, and an opening is formed between the first fastener and the second fastener. is ,
The knob portion is folded back with the first fastener and the second fastener inside at a first fold formed between the first fastener and the second fastener, and the opening portion is folded back with the first fold formed between the first fastener and the second fastener. A disposable diaper, wherein the second fastener overlaps with a second fastener and is exposed through the opening, and the first fastener is temporarily fastened to the intermediate portion of the tape base material. The disposable diaper according to claim 1 , wherein the first fold is formed between the second fastener and the opening. The disposable diaper according to claim 1 or 2, wherein the second fastener is temporarily fastened to the tab portion of the tape base material. The intermediate portion is folded back with the folded tab portion inside at a second fold formed closer to the diaper main body than the tip of the folded tab portion, and the second fastener closes the opening. The disposable diaper according to any one of claims 1 to 3, wherein the disposable diaper is temporarily fastened to the diaper main body via an intermediary. The second fastener is provided so as to cross the grip portion of the tape base material in the front-rear direction,
The disposable diaper according to any one of claims 1 to 4, wherein the grip portion is formed such that the length in the front-rear direction becomes shorter toward the tip. The disposable diaper according to any one of claims 1 to 5, wherein the tape base material is made of a nonwoven fabric having a mass per unit area of 50 g/m ² or more and 120 g/m ² or less .

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